[Soot-list] Questions about profiler2 example

[Kelvin Tian]

OK, it works now after I set the level to be 2. Thanks for your help!


--
Best regards,
Kelvin


On Thu, Jul 16, 2009 at 2:11 PM, Eric Bodden <eric.bodden at mail.mcgill.ca>wrote:

> Sorry, I think I made a mistake. As the exception says, you have to
> use addBasicClass("MyCounter",SIGNATURES). The SIGNATURES constant is
> important. Otherwise, the class will not be resolved to the right
> level.
>
> Eric
>
> 2009/7/16 Kelvin Tian <kevinn.tian at gmail.com>:
> > Dear Eric,
> >
> >    I modified the code as you said,  adding  " SootClass counterClass =
> > Scene.v().getSootClass("MyCounter");"  and
> > "Scene.v().addBasicClass("MyCounter");".
> > But the same error still happens as below,
> > Exception in thread "main" java.lang.RuntimeException: This operation
> > requires resolving level SIGNATURES but MyCounter is at resolving level
> > HIERARCHY
> > If you are extending Soot, try to add the following call before calling
> > soot.Main.main(..):
> > Scene.v().addBasicClass(MyCounter,SIGNATURES);
> >
> > Is it supposed to be working now?  Or do I need to add a signaure level
> in
> > addBasicClass method? Thanks for any suggestions and have a good day!
> >
> >
> >
> > --
> > Best regards,
> > Kelvin
> >
> >
> > On Thu, Jul 16, 2009 at 11:59 AM, Eric Bodden <
> eric.bodden at mail.mcgill.ca>
> > wrote:
> >>
> >> Hi Kelvin.
> >>
> >> In general it should be possible to create multiple counters that way.
> >> The error that you see has nothing to do with whether you use one
> >> counter or many. It rather has to do with using loadClassAndSupport.
> >>
> >> Instead of using loadClassAndSupport("X") I would suggest to...
> >>
> >> 1.) add the following call just before the call to soot.Main.main(args):
> >>
> >> Scene.v().addBasicClass("X");
> >>
> >> 2.) Then within the internalTransform method, simply access the class
> via:
> >>
> >> Scene.v().getClass("X");
> >>
> >> Eric
> >>
> >> 2009/7/16 Kelvin Tian <kevinn.tian at gmail.com>:
> >> >     I'm using Soot to do some instrumentation, and I've some questions
> >> > related to the profiler2 example, under link
> >> > http://www.sable.mcgill.ca/soot/tutorial/profiler2/index.html ?
> >> >  In this example, I see it use a counter class to add a counter to
> count
> >> > the
> >> > number of InvokeStatic statements, and there's only one counter.  If I
> >> > want
> >> > to create several counters to get different profiling information, can
> I
> >> > create several instances of counter class and use each instance to
> count
> >> > different things?
> >> > I tried to do that, coding similarly like below,
> >> > (ie:
> >> >    SootClass counter1 =  Scene.v().loadClassAndSupport("MyCounter");
> >> >    increaseCounter1 = counter1.getMethod("void increase(int)");
> >> >    .....
> >> >    SootClass counter2 =  Scene.v().loadClassAndSupport("MyCounter");
> >> >    increaseCounter2 = counter2.getMethod("void increase(int)");
> >> >    ...
> >> > )
> >> > but I got a lot of runtime errors like this: " Exception in thread
> >> > "main"
> >> > java.lang.RuntimeException: This operation requires resolving level
> >> > SIGNATURES but MyCounter is at resolving level HIERARCHY  If you are
> >> > extending Soot, try to add the following call before calling
> >> > soot.Main.main
> >> > "
> >> >
> >> > So I just wonder if this is applicable to create different instances
> of
> >> > counter class, and if not, are there any better ways to create more
> than
> >> > one
> >> > counter? Or do I have to instrument jimple code to manually add
> counter
> >> > code
> >> > for each counter I want?  Thanks so much for answers!
> >> >
> >> >
> >> >
> >> > --
> >> > Best regards,
> >> > Kelvin
> >> >
> >> > _______________________________________________
> >> > 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, Québec, Canada
> >
> >
>
>
>
> --
> Eric Bodden
> Sable Research Group, McGill University
> Montréal, Québec, Canada
>
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