[Soot-list] want to maintain bytecode offsets for classfiles

[Manjiri Namjoshi]

Hi,

Thank You !
Sorry to bother again but does SOOT provide any flag to turn off the
optimizations on the classfiles and only allow annotations?

Sincerely,
Manjiri

2008/10/6 Eric Bodden <eric.bodden at mail.mcgill.ca>

> Looking at the source code it seems that it returns the offset from
> the original classfile.
>
> Eric
>
> 2008/10/5 Manjiri Namjoshi <manjiri.namjoshi at googlemail.com>:
> > Hi,
> >
> > Thanks for your reply !
> > Actually i would like to know which bytecode offset does the
> > getBytecodeOffset() return ?
> > The offset from the original classfile or the transformed classfile?
> >
> > I am caring about the offset because i want to add method annotations
> with a
> > value as offsets corresponding to only if_cmp instructions !
> >
> > Thank You.
> >
> >
> > Sincerely,
> > Manjiri
> >
> > 2008/10/4 Eric Bodden <eric.bodden at mail.mcgill.ca>
> >>
> >> Hi Manjiri.
> >>
> >> I don't think that what you are looking for is possible. Soot converts
> >> bytecode to an intermediate representation called Jimple and then back
> >> to bytecode. This is not a 1:1 transformation. You can try to disable
> >> some of the phases in the "jb" pack (see here
> >> http://www.sable.mcgill.ca/soot/tutorial/phase/index.html) but I don't
> >> think that this is going to preserve all the offsets either.
> >>
> >> Just out of curiosity: Why would you care about the offsets?
> >>
> >> Eric
> >>
> >> 2008/10/4 Manjiri Namjoshi <manjiri.namjoshi at googlemail.com>:
> >> > Hello,
> >> >
> >> > I am trying to run a soot transformation and annotate the classfiles.
> >> > I observed that the classfiles which the soot produces have different
> >> > bytecode offsets than the original bytecode offsets.
> >> >
> >> > I think soot optimizations is causing this to happen.
> >> >
> >> > This is the transformation:
> >> >        /* adds the transformer. */
> >> >         PackManager.v().getPack("jtp").add(new
> >> >                         Transform("jtp.annotexample",
> >> >                   CreateAnnotationFile.v()));
> >> >
> >> >         /* invokes Soot */
> >> >         soot.Main.main(args);
> >> >
> >> > I want to somehow suppress these optimizations and maintain the
> bytecode
> >> > offsets.
> >> >
> >> > Thanks in advance!
> >> >
> >> > Sincerely,
> >> > Manjiri
> >> >
> >> > _______________________________________________
> >> > 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
> >
> >
>
>
>
> --
> Eric Bodden
> Sable Research Group
> McGill University, Montréal, Canada
>
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