[Soot-list] Using Soot as a library / PhaseOptions

[Eric Bodden]

I think looking at PackManager should answer most of your questions:

http://kickjava.com/src/soot/PackManager.java.htm

In particular, jap is only run if Jimple is produced, it seems.

Eric

2008/11/26 Matthew Hague <Matthew.Hague at comlab.ox.ac.uk>:
>
> Hi,
>
> Thanks for the reply.
>
> The problem seems to be that the jap pack is not being run at all.  If i use:
>
>  PhaseOptions.v().setPhaseOption("jb.lp", "on");
>
> then the local packer runs as expected (and does not run if i don't enable
> it).  But, if i use:
>
>  PhaseOptions.v().setPhaseOption("jap.npc", "on");
>
> there are no null pointer tags (similarly for other jap tools).  I can use:
>
>  PackManager.v().runPacks(); // (or runBodyPacks())
>
> after loading a class.  However, since the jb.lp option does not require the
> extra step (which causes further problems for me at the moment...), i suspect
> i'm missing something else.
>
> Although i plan to add my own annotation tool, my immediate concern is
> getting the null pointer annotator to run.
>
> Thanks,
>
> Matt
>
>
> On Wed, Nov 26, 2008 at 01:06:46PM -0500, Eric Bodden wrote:
>> Matthew, the "jap" pack is run after all other packs.
>>
>> I recommend reading the PLDI tutorial
>> (http://www.sable.mcgill.ca/soot/tutorial/pldi03/tutorial.pdf) in
>> particular the diagram on page number 100.
>>
>> To run your analysis after the jap pack has been applied, simply add
>> your transformer to the jap pack.
>>
>> Eric
>>
>>
>> 2008/11/26 Matthew Hague <Matthew.Hague at comlab.ox.ac.uk>:
>> >
>> > Hi,
>> >
>> > I am attempting to use Soot as a library, as in this example from the mailing
>> > list:
>> >
>> >  http://www.sable.mcgill.ca/pipermail/soot-list/2008-July/001862.html
>> >
>> >  > public static void main(String[] args) {
>> >  >
>> >  >                if (args.length == 0) {
>> >  >                        System.out.println("Usage: java RunLiveAnalysis
>> >  > class_to_analyse");
>> >  >                        System.exit(0);
>> >  >                }
>> >  >
>> >  >                SootClass sClass = Scene.v().loadClassAndSupport(args[0]);
>> >  >
>> >  >                sClass.setApplicationClass();
>> >  >
>> >  >                Iterator methodIt = sClass.getMethods().iterator();
>> >  >                while (methodIt.hasNext()) {
>> >  >                        SootMethod m = (SootMethod)methodIt.next();
>> >  >                        Body b = m.retrieveActiveBody();
>> >  >                        ....
>> >
>> > I would like to make use of the various optimisations and analyses provided
>> > by Soot, and be able to add some of my own.
>> >
>> > If i add a line:
>> >
>> >  PhaseOptions.v().setPhaseOption("jb.lp", "on");
>> >
>> > towards the top of the main method, then the local variable packer is
>> > (automatically) run on the Jimple retrieved from m.retrieveActiveBody().
>> > However, when i try,
>> >
>> >  PhaseOptions.v().setPhaseOption("jap.npc", "on");
>> >
>> > I do not get null pointer tags as expected. I have also tried enabling "jap"
>> > explicitly, and using Options.v().parse(<options>) to set command line
>> > options (instead of using ParseOptions directly), all to no avail.
>> >
>> > Does anyone know what i might be missing?
>> >
>> > I can call NullPointerTagger.v().transform(body) each time a body is
>> > retrieved, if necessary, but this does not seem like the neatest solution.
>> >
>> > Thanks,
>> >
>> > Matthew Hague
>> > _______________________________________________
>> > Soot-list mailing list
>> > Soot-list at sable.mcgill.ca
>> > http://mailman.cs.mcgill.ca/mailman/listinfo/soot-list
>> >
>>
>>
>>
>> --
>> Eric Bodden
>> Sable Research Group, McGill University, Montréal, Canada
>> Got an interesting job offer? http://www.bodden.de/hire-me/
>



-- 
Eric Bodden
Sable Research Group, McGill University, Montréal, Canada
Got an interesting job offer? http://www.bodden.de/hire-me/