[Soot-list] inter-procedural analysis on an android app

[Eric Bodden]

Hi Daniela.

Before you call Soot's main method, simply call:

Scene.v().setEntryPoints(new MyPoints());

where MyPoints is a subclass of EntryPoints that implements the
correct method all() for your case.

Eric


On 4 January 2011 20:47, daniela antonova <daniela.antonova at gmail.com> wrote:
> Hi,
>
> I would like to write an inter-procedural analysis to analyse Android apps.
> At the moment I am trying to create a call graph for an application.
> The problem is that the app doesn't have a main method and as a result
> I need to define
> entry points other than main method. I could not find an example that
> does that, so
> I would be very grateful for your help.
>
> This is the code I have so far:
> public static void main(String[] args) {
>
>                List<String> argsList = new ArrayList<String>(Arrays.asList(args));
>                argsList.addAll(Arrays.asList(new String[]{
>                                "-w",
>                                "-main-class",
>                                "testers.AddressBook2",//main-class
>                                "testers.AddressBook2"//argument classes
>                }));
>
>                PackManager.v().getPack("wjtp").add(new Transform("wjtp.myTrans",
> new SceneTransformer() {
>
>                        @Override
>                        protected void internalTransform(String phaseName, Map options) {
>                                CHATransformer.v().transform();
>                                SootClass a = Scene.v().getSootClass("testers.AddressBook2");
>
>                                SootMethod src = Scene.v().getMainClass().getMethodByName("onCreate");
>                                CallGraph cg = Scene.v().getCallGraph();
>
>                                Iterator<MethodOrMethodContext> targets = new Targets(cg.edgesOutOf(src));
>                                while (targets.hasNext()) {
>                                        SootMethod tgt = (SootMethod)targets.next();
>                                        System.out.println(src + " may call " + tgt);
>                                }
>                        }
>
>                }));
>
>                args = argsList.toArray(new String[0]);
>
>                soot.Main.main(args);
>
> I got this from the CallGraph example in the Soot source, but I have
> not been able to modify it so that I could get rid of the exception:
> Exception in thread "main" java.lang.RuntimeException: There is no
> main class set!
>        at soot.Scene.getMainClass(Scene.java:160)
>        at soot.EntryPoints.application(EntryPoints.java:65)
>        at soot.EntryPoints.all(EntryPoints.java:95)
>        at soot.Scene.getEntryPoints(Scene.java:683)
>        at soot.Scene.getReachableMethods(Scene.java:730)
>        at soot.jimple.toolkits.callgraph.CallGraphBuilder.<init>(CallGraphBuilder.java:59)
>        at soot.jimple.toolkits.callgraph.CHATransformer.internalTransform(CHATransformer.java:42)
>        at soot.SceneTransformer.transform(SceneTransformer.java:39)
>        at soot.Transform.apply(Transform.java:89)
>        at soot.RadioScenePack.internalApply(RadioScenePack.java:57)
>        at soot.jimple.toolkits.callgraph.CallGraphPack.internalApply(CallGraphPack.java:47)
>        at soot.Pack.apply(Pack.java:114)
>        at soot.PackManager.runWholeProgramPacks(PackManager.java:408)
>        at soot.PackManager.runPacks(PackManager.java:329)
>        at soot.Main.run(Main.java:198)
>        at soot.Main.main(Main.java:141)
>        at RunInterProceduralAnalysis.main(RunInterProceduralAnalysis.java:64)
>
> Thank you very much for your help!
> Daniela
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