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package soot.jimple.spark.builder;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 2003 Ondrej Lhotak
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
import soot.AnySubType;
import soot.ArrayType;
import soot.PointsToAnalysis;
import soot.RefType;
import soot.Scene;
import soot.SootClass;
import soot.jimple.spark.pag.AllocNode;
import soot.jimple.spark.pag.ArrayElement;
import soot.jimple.spark.pag.ContextVarNode;
import soot.jimple.spark.pag.Node;
import soot.jimple.spark.pag.PAG;
import soot.jimple.spark.pag.VarNode;
import soot.toolkits.scalar.Pair;
/**
* Factory for nodes not specific to a given method.
*
* @author Ondrej Lhotak
*/
public class GlobalNodeFactory {
protected final RefType rtObject;
protected final RefType rtClassLoader;
protected final RefType rtString;
protected final RefType rtThread;
protected final RefType rtThreadGroup;
protected final RefType rtThrowable;
public GlobalNodeFactory(PAG pag) {
this.pag = pag;
this.rtObject = RefType.v("java.lang.Object");
this.rtClassLoader = RefType.v("java.lang.ClassLoader");
this.rtString = RefType.v("java.lang.String");
this.rtThread = RefType.v("java.lang.Thread");
this.rtThreadGroup = RefType.v("java.lang.ThreadGroup");
this.rtThrowable = RefType.v("java.lang.Throwable");
}
final public Node caseDefaultClassLoader() {
AllocNode a = pag.makeAllocNode(PointsToAnalysis.DEFAULT_CLASS_LOADER, AnySubType.v(rtClassLoader), null);
VarNode v = pag.makeGlobalVarNode(PointsToAnalysis.DEFAULT_CLASS_LOADER_LOCAL, rtClassLoader);
pag.addEdge(a, v);
return v;
}
final public Node caseMainClassNameString() {
AllocNode a = pag.makeAllocNode(PointsToAnalysis.MAIN_CLASS_NAME_STRING, rtString, null);
VarNode v = pag.makeGlobalVarNode(PointsToAnalysis.MAIN_CLASS_NAME_STRING_LOCAL, rtString);
pag.addEdge(a, v);
return v;
}
final public Node caseMainThreadGroup() {
AllocNode threadGroupNode = pag.makeAllocNode(PointsToAnalysis.MAIN_THREAD_GROUP_NODE, rtThreadGroup, null);
VarNode threadGroupNodeLocal = pag.makeGlobalVarNode(PointsToAnalysis.MAIN_THREAD_GROUP_NODE_LOCAL, rtThreadGroup);
pag.addEdge(threadGroupNode, threadGroupNodeLocal);
return threadGroupNodeLocal;
}
final public Node casePrivilegedActionException() {
AllocNode a = pag.makeAllocNode(PointsToAnalysis.PRIVILEGED_ACTION_EXCEPTION,
AnySubType.v(RefType.v("java.security.PrivilegedActionException")), null);
VarNode v = pag.makeGlobalVarNode(PointsToAnalysis.PRIVILEGED_ACTION_EXCEPTION_LOCAL,
RefType.v("java.security.PrivilegedActionException"));
pag.addEdge(a, v);
return v;
}
final public Node caseCanonicalPath() {
AllocNode a = pag.makeAllocNode(PointsToAnalysis.CANONICAL_PATH, rtString, null);
VarNode v = pag.makeGlobalVarNode(PointsToAnalysis.CANONICAL_PATH_LOCAL, rtString);
pag.addEdge(a, v);
return v;
}
final public Node caseMainThread() {
AllocNode threadNode = pag.makeAllocNode(PointsToAnalysis.MAIN_THREAD_NODE, rtThread, null);
VarNode threadNodeLocal = pag.makeGlobalVarNode(PointsToAnalysis.MAIN_THREAD_NODE_LOCAL, rtThread);
pag.addEdge(threadNode, threadNodeLocal);
return threadNodeLocal;
}
final public Node caseFinalizeQueue() {
return pag.makeGlobalVarNode(PointsToAnalysis.FINALIZE_QUEUE, rtObject);
}
final public Node caseArgv() {
ArrayType strArray = ArrayType.v(rtString, 1);
AllocNode argv = pag.makeAllocNode(PointsToAnalysis.STRING_ARRAY_NODE, strArray, null);
VarNode sanl = pag.makeGlobalVarNode(PointsToAnalysis.STRING_ARRAY_NODE_LOCAL, strArray);
AllocNode stringNode = pag.makeAllocNode(PointsToAnalysis.STRING_NODE, rtString, null);
VarNode stringNodeLocal = pag.makeGlobalVarNode(PointsToAnalysis.STRING_NODE_LOCAL, rtString);
pag.addEdge(argv, sanl);
pag.addEdge(stringNode, stringNodeLocal);
pag.addEdge(stringNodeLocal, pag.makeFieldRefNode(sanl, ArrayElement.v()));
return sanl;
}
final public Node caseNewInstance(VarNode cls) {
if (cls instanceof ContextVarNode) {
cls = pag.findLocalVarNode(cls.getVariable());
}
VarNode local = pag.makeGlobalVarNode(cls, rtObject);
for (SootClass cl : Scene.v().dynamicClasses()) {
AllocNode site = pag.makeAllocNode(new Pair(cls, cl), cl.getType(), null);
pag.addEdge(site, local);
}
return local;
}
public Node caseThrow() {
VarNode ret = pag.makeGlobalVarNode(PointsToAnalysis.EXCEPTION_NODE, rtThrowable);
ret.setInterProcTarget();
ret.setInterProcSource();
return ret;
}
/* End of public methods. */
/* End of package methods. */
protected PAG pag;
}