| //===--- AnalyzerOptions.h - Analysis Engine Options ------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This header defines various options for the static analyzer that are set |
| // by the frontend and are consulted throughout the analyzer. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_ANALYZEROPTIONS_H |
| #define LLVM_CLANG_ANALYZEROPTIONS_H |
| |
| #include "clang/Basic/LLVM.h" |
| #include "llvm/ADT/IntrusiveRefCntPtr.h" |
| #include "llvm/ADT/Optional.h" |
| #include "llvm/ADT/StringMap.h" |
| #include <string> |
| #include <vector> |
| |
| namespace clang { |
| class ASTConsumer; |
| class DiagnosticsEngine; |
| class Preprocessor; |
| class LangOptions; |
| |
| /// Analysis - Set of available source code analyses. |
| enum Analyses { |
| #define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE) NAME, |
| #include "clang/StaticAnalyzer/Core/Analyses.def" |
| NumAnalyses |
| }; |
| |
| /// AnalysisStores - Set of available analysis store models. |
| enum AnalysisStores { |
| #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) NAME##Model, |
| #include "clang/StaticAnalyzer/Core/Analyses.def" |
| NumStores |
| }; |
| |
| /// AnalysisConstraints - Set of available constraint models. |
| enum AnalysisConstraints { |
| #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) NAME##Model, |
| #include "clang/StaticAnalyzer/Core/Analyses.def" |
| NumConstraints |
| }; |
| |
| /// AnalysisDiagClients - Set of available diagnostic clients for rendering |
| /// analysis results. |
| enum AnalysisDiagClients { |
| #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) PD_##NAME, |
| #include "clang/StaticAnalyzer/Core/Analyses.def" |
| NUM_ANALYSIS_DIAG_CLIENTS |
| }; |
| |
| /// AnalysisPurgeModes - Set of available strategies for dead symbol removal. |
| enum AnalysisPurgeMode { |
| #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) NAME, |
| #include "clang/StaticAnalyzer/Core/Analyses.def" |
| NumPurgeModes |
| }; |
| |
| /// AnalysisInlineFunctionSelection - Set of inlining function selection heuristics. |
| enum AnalysisInliningMode { |
| #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) NAME, |
| #include "clang/StaticAnalyzer/Core/Analyses.def" |
| NumInliningModes |
| }; |
| |
| /// \brief Describes the different kinds of C++ member functions which can be |
| /// considered for inlining by the analyzer. |
| /// |
| /// These options are cumulative; enabling one kind of member function will |
| /// enable all kinds with lower enum values. |
| enum CXXInlineableMemberKind { |
| // Uninitialized = 0, |
| |
| /// A dummy mode in which no C++ inlining is enabled. |
| CIMK_None = 1, |
| |
| /// Refers to regular member function and operator calls. |
| CIMK_MemberFunctions, |
| |
| /// Refers to constructors (implicit or explicit). |
| /// |
| /// Note that a constructor will not be inlined if the corresponding |
| /// destructor is non-trivial. |
| CIMK_Constructors, |
| |
| /// Refers to destructors (implicit or explicit). |
| CIMK_Destructors |
| }; |
| |
| /// \brief Describes the different modes of inter-procedural analysis. |
| enum IPAKind { |
| IPAK_NotSet = 0, |
| |
| /// Perform only intra-procedural analysis. |
| IPAK_None = 1, |
| |
| /// Inline C functions and blocks when their definitions are available. |
| IPAK_BasicInlining = 2, |
| |
| /// Inline callees(C, C++, ObjC) when their definitions are available. |
| IPAK_Inlining = 3, |
| |
| /// Enable inlining of dynamically dispatched methods. |
| IPAK_DynamicDispatch = 4, |
| |
| /// Enable inlining of dynamically dispatched methods, bifurcate paths when |
| /// exact type info is unavailable. |
| IPAK_DynamicDispatchBifurcate = 5 |
| }; |
| |
| class AnalyzerOptions : public RefCountedBase<AnalyzerOptions> { |
| public: |
| typedef llvm::StringMap<std::string> ConfigTable; |
| |
| /// \brief Pair of checker name and enable/disable. |
| std::vector<std::pair<std::string, bool> > CheckersControlList; |
| |
| /// \brief A key-value table of use-specified configuration values. |
| ConfigTable Config; |
| AnalysisStores AnalysisStoreOpt; |
| AnalysisConstraints AnalysisConstraintsOpt; |
| AnalysisDiagClients AnalysisDiagOpt; |
| AnalysisPurgeMode AnalysisPurgeOpt; |
| |
| std::string AnalyzeSpecificFunction; |
| |
| /// \brief The maximum number of times the analyzer visits a block. |
| unsigned maxBlockVisitOnPath; |
| |
| |
| unsigned ShowCheckerHelp : 1; |
| unsigned AnalyzeAll : 1; |
| unsigned AnalyzerDisplayProgress : 1; |
| unsigned AnalyzeNestedBlocks : 1; |
| |
| /// \brief The flag regulates if we should eagerly assume evaluations of |
| /// conditionals, thus, bifurcating the path. |
| /// |
| /// This flag indicates how the engine should handle expressions such as: 'x = |
| /// (y != 0)'. When this flag is true then the subexpression 'y != 0' will be |
| /// eagerly assumed to be true or false, thus evaluating it to the integers 0 |
| /// or 1 respectively. The upside is that this can increase analysis |
| /// precision until we have a better way to lazily evaluate such logic. The |
| /// downside is that it eagerly bifurcates paths. |
| unsigned eagerlyAssumeBinOpBifurcation : 1; |
| |
| unsigned TrimGraph : 1; |
| unsigned visualizeExplodedGraphWithGraphViz : 1; |
| unsigned visualizeExplodedGraphWithUbiGraph : 1; |
| unsigned UnoptimizedCFG : 1; |
| unsigned PrintStats : 1; |
| |
| /// \brief Do not re-analyze paths leading to exhausted nodes with a different |
| /// strategy. We get better code coverage when retry is enabled. |
| unsigned NoRetryExhausted : 1; |
| |
| /// \brief The inlining stack depth limit. |
| unsigned InlineMaxStackDepth; |
| |
| /// \brief The mode of function selection used during inlining. |
| AnalysisInliningMode InliningMode; |
| |
| private: |
| /// \brief Describes the kinds for high-level analyzer mode. |
| enum UserModeKind { |
| UMK_NotSet = 0, |
| /// Perform shallow but fast analyzes. |
| UMK_Shallow = 1, |
| /// Perform deep analyzes. |
| UMK_Deep = 2 |
| }; |
| |
| /// Controls the high-level analyzer mode, which influences the default |
| /// settings for some of the lower-level config options (such as IPAMode). |
| /// \sa getUserMode |
| UserModeKind UserMode; |
| |
| /// Controls the mode of inter-procedural analysis. |
| IPAKind IPAMode; |
| |
| /// Controls which C++ member functions will be considered for inlining. |
| CXXInlineableMemberKind CXXMemberInliningMode; |
| |
| /// \sa includeTemporaryDtorsInCFG |
| llvm::Optional<bool> IncludeTemporaryDtorsInCFG; |
| |
| /// \sa mayInlineCXXStandardLibrary |
| llvm::Optional<bool> InlineCXXStandardLibrary; |
| |
| /// \sa mayInlineTemplateFunctions |
| llvm::Optional<bool> InlineTemplateFunctions; |
| |
| /// \sa mayInlineObjCMethod |
| llvm::Optional<bool> ObjCInliningMode; |
| |
| // Cache of the "ipa-always-inline-size" setting. |
| // \sa getAlwaysInlineSize |
| llvm::Optional<unsigned> AlwaysInlineSize; |
| |
| /// \sa shouldSuppressNullReturnPaths |
| llvm::Optional<bool> SuppressNullReturnPaths; |
| |
| // \sa getMaxInlinableSize |
| llvm::Optional<unsigned> MaxInlinableSize; |
| |
| /// \sa shouldAvoidSuppressingNullArgumentPaths |
| llvm::Optional<bool> AvoidSuppressingNullArgumentPaths; |
| |
| /// \sa getGraphTrimInterval |
| llvm::Optional<unsigned> GraphTrimInterval; |
| |
| /// \sa getMaxTimesInlineLarge |
| llvm::Optional<unsigned> MaxTimesInlineLarge; |
| |
| /// \sa getMaxNodesPerTopLevelFunction |
| llvm::Optional<unsigned> MaxNodesPerTopLevelFunction; |
| |
| /// Interprets an option's string value as a boolean. |
| /// |
| /// Accepts the strings "true" and "false". |
| /// If an option value is not provided, returns the given \p DefaultVal. |
| bool getBooleanOption(StringRef Name, bool DefaultVal); |
| |
| /// Variant that accepts a Optional value to cache the result. |
| bool getBooleanOption(llvm::Optional<bool> &V, StringRef Name, |
| bool DefaultVal); |
| |
| /// Interprets an option's string value as an integer value. |
| int getOptionAsInteger(StringRef Name, int DefaultVal); |
| |
| public: |
| /// \brief Retrieves and sets the UserMode. This is a high-level option, |
| /// which is used to set other low-level options. It is not accessible |
| /// outside of AnalyzerOptions. |
| UserModeKind getUserMode(); |
| |
| /// \brief Returns the inter-procedural analysis mode. |
| IPAKind getIPAMode(); |
| |
| /// Returns the option controlling which C++ member functions will be |
| /// considered for inlining. |
| /// |
| /// This is controlled by the 'c++-inlining' config option. |
| /// |
| /// \sa CXXMemberInliningMode |
| bool mayInlineCXXMemberFunction(CXXInlineableMemberKind K); |
| |
| /// Returns true if ObjectiveC inlining is enabled, false otherwise. |
| bool mayInlineObjCMethod(); |
| |
| /// Returns whether or not the destructors for C++ temporary objects should |
| /// be included in the CFG. |
| /// |
| /// This is controlled by the 'cfg-temporary-dtors' config option, which |
| /// accepts the values "true" and "false". |
| bool includeTemporaryDtorsInCFG(); |
| |
| /// Returns whether or not C++ standard library functions may be considered |
| /// for inlining. |
| /// |
| /// This is controlled by the 'c++-stdlib-inlining' config option, which |
| /// accepts the values "true" and "false". |
| bool mayInlineCXXStandardLibrary(); |
| |
| /// Returns whether or not templated functions may be considered for inlining. |
| /// |
| /// This is controlled by the 'c++-template-inlining' config option, which |
| /// accepts the values "true" and "false". |
| bool mayInlineTemplateFunctions(); |
| |
| /// Returns whether or not paths that go through null returns should be |
| /// suppressed. |
| /// |
| /// This is a heuristic for avoiding bug reports with paths that go through |
| /// inlined functions that are more defensive than their callers. |
| /// |
| /// This is controlled by the 'suppress-null-return-paths' config option, |
| /// which accepts the values "true" and "false". |
| bool shouldSuppressNullReturnPaths(); |
| |
| /// Returns whether a bug report should \em not be suppressed if its path |
| /// includes a call with a null argument, even if that call has a null return. |
| /// |
| /// This option has no effect when #shouldSuppressNullReturnPaths() is false. |
| /// |
| /// This is a counter-heuristic to avoid false negatives. |
| /// |
| /// This is controlled by the 'avoid-suppressing-null-argument-paths' config |
| /// option, which accepts the values "true" and "false". |
| bool shouldAvoidSuppressingNullArgumentPaths(); |
| |
| /// Returns whether irrelevant parts of a bug report path should be pruned |
| /// out of the final output. |
| /// |
| /// This is controlled by the 'prune-paths' config option, which accepts the |
| /// values "true" and "false". |
| bool shouldPrunePaths(); |
| |
| // Returns the size of the functions (in basic blocks), which should be |
| // considered to be small enough to always inline. |
| // |
| // This is controlled by "ipa-always-inline-size" analyzer-config option. |
| unsigned getAlwaysInlineSize(); |
| |
| // Returns the bound on the number of basic blocks in an inlined function |
| // (50 by default). |
| // |
| // This is controlled by "-analyzer-config max-inlinable-size" option. |
| unsigned getMaxInlinableSize(); |
| |
| /// Returns true if the analyzer engine should synthesize fake bodies |
| /// for well-known functions. |
| bool shouldSynthesizeBodies(); |
| |
| /// Returns how often nodes in the ExplodedGraph should be recycled to save |
| /// memory. |
| /// |
| /// This is controlled by the 'graph-trim-interval' config option. To disable |
| /// node reclamation, set the option to "0". |
| unsigned getGraphTrimInterval(); |
| |
| /// Returns the maximum times a large function could be inlined. |
| /// |
| /// This is controlled by the 'max-times-inline-large' config option. |
| unsigned getMaxTimesInlineLarge(); |
| |
| /// Returns the maximum number of nodes the analyzer can generate while |
| /// exploring a top level function (for each exploded graph). |
| /// 150000 is default; 0 means no limit. |
| /// |
| /// This is controlled by the 'max-nodes' config option. |
| unsigned getMaxNodesPerTopLevelFunction(); |
| |
| public: |
| AnalyzerOptions() : |
| AnalysisStoreOpt(RegionStoreModel), |
| AnalysisConstraintsOpt(RangeConstraintsModel), |
| AnalysisDiagOpt(PD_HTML), |
| AnalysisPurgeOpt(PurgeStmt), |
| ShowCheckerHelp(0), |
| AnalyzeAll(0), |
| AnalyzerDisplayProgress(0), |
| AnalyzeNestedBlocks(0), |
| eagerlyAssumeBinOpBifurcation(0), |
| TrimGraph(0), |
| visualizeExplodedGraphWithGraphViz(0), |
| visualizeExplodedGraphWithUbiGraph(0), |
| UnoptimizedCFG(0), |
| PrintStats(0), |
| NoRetryExhausted(0), |
| // Cap the stack depth at 4 calls (5 stack frames, base + 4 calls). |
| InlineMaxStackDepth(5), |
| InliningMode(NoRedundancy), |
| UserMode(UMK_NotSet), |
| IPAMode(IPAK_NotSet), |
| CXXMemberInliningMode() {} |
| |
| }; |
| |
| typedef IntrusiveRefCntPtr<AnalyzerOptions> AnalyzerOptionsRef; |
| |
| } |
| |
| #endif |