[Soot-list] Difference between entryInitialFlow and newInitialFlow in data flow analysis?

Amit ciphermaker99 at gmail.com
Sun Jul 8 17:36:37 EDT 2012


Hi Eric,

Thanks for the explanation. However, I am still a bit confused.
entryInitialFlow is clear. It is invoked before the entry node is
processed. However, when is the newInitialFlow used?

If I understood correctly, info for intermediate nodes is calculated using
merge and flowthrough methods using the in set (which is decided initially
by entryInitialFlow).

Where in the graph would  newInitialFlow be used? Is it used at the
instructions where new objects  are created?

Thanks
Amitabh
 On Jul 1, 2012 3:20 AM, "Eric Bodden" <eric.bodden at ec-spride.de> wrote:

> Hello.
>
> entryInitialFlow returns the initial abstraction that is used at the
> entry point to the method.
> newInitialFlow returns the initial abstraction that is used at all
> other places in the method.
>
> Hope that helps,
> Eric
>
> On 30 June 2012 15:20, Amit <ciphermaker99 at gmail.com> wrote:
> > In soot ForwardFlowAnalysis there are two method we must override
> >
> > entryInitialFlow()
> > newInitialFlow()
> >
> > Can anyone explain the purpose of these statements and when these are
> > invoked?
> >
> > Rgds
> > Amit
> >
> > _______________________________________________
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> > Soot-list at sable.mcgill.ca
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> >
>
>
>
> --
> Eric Bodden, Ph.D., http://bodden.de/
> Head of Secure Software Engineering Group at EC SPRIDE
> Principal Investigator in Secure Services at CASED
> Tel: +49 6151 16-75422    Fax: +49 6151 16-72051
> Room 3.2.14, Mornewegstr. 30, 64293 Darmstadt
>
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