private static OrdinalSet<InstanceKey> findReachableInstances( final PointerAnalysis<InstanceKey> pts, final PointerKey pkStart) { final HeapGraph hg = pts.getHeapGraph(); if (!hg.containsNode(pkStart)) { return OrdinalSet.empty(); } final OrdinalSetMapping<InstanceKey> mapping = pts.getInstanceKeyMapping(); final BitVectorIntSet resultSet = new BitVectorIntSet(); final NumberedDFSDiscoverTimeIterator<Object> dfsDiscover = new NumberedDFSDiscoverTimeIterator<Object>(hg, pkStart); while (dfsDiscover.hasNext()) { Object obj = dfsDiscover.next(); if (obj instanceof InstanceKey) { InstanceKey ik = (InstanceKey) obj; final int ikNum = mapping.getMappedIndex(ik); resultSet.add(ikNum); } } final OrdinalSet<InstanceKey> reachable = new OrdinalSet<InstanceKey>(resultSet, mapping); return reachable; }
private static Result getOrigSDG(Config cfg, IProgressMonitor progress) throws IllegalArgumentException, CancelException, PDGFormatException, IOException, WalaException, InvalidClassFileException { progress.beginTask(Messages.getString("Analyzer.Task_Prepare_IR"), -1); // $NON-NLS-1$ com.ibm.wala.ipa.callgraph.impl.Util.setNativeSpec(cfg.nativesXML); progress.subTask(Messages.getString("Analyzer.SubTask_Analysis_Scope")); // $NON-NLS-1$ ClassLoader loader = cfg.getClass().getClassLoader(); AnalysisScope scope = Util.makeAnalysisScope(cfg, loader); // AnalysisScopeReader.makeJavaBinaryAnalysisScope(cfg.scopeFile, cfg.classpath, null); progress.done(); ClassHierarchy cha = ClassHierarchy.make(scope, progress); Iterable<Entrypoint> entrypoints = com.ibm.wala.ipa.callgraph.impl.Util.makeMainEntrypoints(scope, cha, cfg.mainClass); AnalysisOptions options = new AnalysisOptions(scope, entrypoints); AnalysisCache cache = new AnalysisCache(); progress.subTask( Messages.getString("Analyzer.SubTask_Call_Graph_Builder") + cfg.pointsTo); // $NON-NLS-1$ SSAPropagationCallGraphBuilder builder = SDGFactory.getCallGraphBuilder(cfg.pointsTo, options, cache, cha, scope); /** * Change the wala internal pointer and instancekeyfactory of the callgraph builder to our * adapter. So we can keep track of the created InstanceKeys and PointerKeys. This information * is used later on when creating subobject trees for accessed field variables. */ InstanceAndPointerKeyFactoryAdapter adapter = null; InstanceKeyFactory ikFact = builder.getInstanceKeys(); PointerKeyFactory pkFact = builder.getPointerKeyFactory(); adapter = new InstanceAndPointerKeyFactoryAdapter(ikFact, pkFact); builder.setInstanceKeys(adapter); builder.setPointerKeyFactory(adapter); progress.done(); progress.subTask(Messages.getString("Analyzer.SubTask_Call_Graph")); // $NON-NLS-1$ CallGraph cg = builder.makeCallGraph(options, progress); if (cfg.optimizeCg >= 0) { CallGraphPruning opt = new CallGraphPruning(cg); System.out.println("Call Graph has " + cg.getNumberOfNodes() + " Nodes."); Set<CGNode> sopt = opt.findApplicationNodes(cfg.optimizeCg); cg = new PrunedCallGraph(cg, sopt); System.out.println("Optimized Call Graph has " + cg.getNumberOfNodes() + " Nodes."); } if (Debug.Var.DUMP_CALLGRAPH.isSet()) { Util.dumpCallGraph(cg, cfg.mainClass.replace('/', '.').substring(1), progress); } if (Debug.Var.DUMP_HEAP_GRAPH.isSet()) { PointerAnalysis pta = builder.getPointerAnalysis(); HeapGraph hg = pta.getHeapGraph(); Util.dumpHeapGraph( cfg.mainClass.replace('/', '.').substring(1) + "." + cfg.pointsTo, hg, null); } PointerAnalysis pta = builder.getPointerAnalysis(); progress.done(); DemandRefinementPointsTo demandPts = null; if (cfg.useDemandPts) { throw new UnsupportedOperationException(); // MemoryAccessMap mam = new PABasedMemoryAccessMap(cg, builder.getPointerAnalysis()); // demandPts = new DemandRefinementPointsTo(cg, // new ThisFilteringHeapModel(builder,cha), mam, cha, options, getStateMachineFactory()); } IPointerAnalysis pts = new PointsToWrapper(demandPts, pta); progress.subTask(Messages.getString("Analyzer.SubTask_Search_Main")); // $NON-NLS-1$ IMethod main = edu.kit.joana.deprecated.jsdg.util.Util.searchMethod( entrypoints, "main([Ljava/lang/String;)V"); // $NON-NLS-1$ progress.done(); progress.done(); SDG sdg = SDG.create(main, cg, cache, adapter, pts, cfg, progress); sdg.setAnalysisScope(scope); sdg.setPointerAnalysis(pta); progress.done(); if (Debug.Var.PRINT_FIELD_PTS_INFO.isSet()) { Log.info("search for field allocs called " + PDG.searchFieldAllocs + " times."); } if (Debug.Var.PRINT_UNRESOLVED_CLASSES.isSet()) { for (TypeReference tRef : cg.getClassHierarchy().getUnresolvedClasses()) { Log.warn("Could not resolve: " + Util.typeName(tRef.getName())); } } return new Result(null, sdg, cg, pta, null); }