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);
}