[Soot-list] How to have whole-program analysis run from non-main() methods

[Jiaqi Tan]

Hi Eric,

This is what I am currently doing:

1. Retrieve all methods from class to use as current entry-points
(begin exploring call-graph from one class of interest) using the
following:

Options.v().set_allow_phantom_refs(true);
PhaseOptions.v().setPhaseOption("jb", "enabled:true");
Scene.v().addBasicClass(className, SootClass.BODIES);
PackManager.v().runPacks();
SootClass c = Scene.v().loadClassAndSupport(className);

2. Set entry points:
List<SootMethod> entry = c.getMethods();
G.reset();
Options.v().set_whole_program(true); // same as "-w"
Options.v().set_allow_phantom_refs(true);
Options.v().set_app(true); // set application mode
Options.v().set_debug(true);
PhaseOptions.v().setPhaseOption("cg.cha", "enabled:true"); // true or off
Scene.v().setEntryPoints(entry);
Scene.v().loadNecessaryClasses();
PackManager.v().runPacks();		

3a. When I run with this, I get an error message that the main-class is not set:
Exception in thread "main" java.lang.RuntimeException: There is no
main class set!

3b. When I run it with "Scene.v().setMainClass(clazz);" added before
setting the entry-points, where clazz is the SootClass returned from
above, I get this error instead:
Exception in thread "main" java.lang.RuntimeException: Main-class has
no main method!

I'm not sure if I've missed something.

Thanks!
Jiaqi


On Fri, Dec 9, 2011 at 5:16 PM, Eric Bodden <eric.bodden at ec-spride.de> wrote:
> Hello.
>
> Does this thread answer your questions?
> http://www.sable.mcgill.ca/pipermail/soot-list/2011-July/003799.html
>
> Eric
>
> On 8 December 2011 15:27, Jiaqi Tan <tanjiaqi at gmail.com> wrote:
>> Hi,
>>
>> I am trying to explore the whole-program call-graph of a program
>> completely by flooding it, including from non-main() functions (even
>> if this will create disconnected components in the call-graph).
>>
>> However, it seems that the current Soot whole-program analysis only
>> treats functions named as "main", or with a single String[] argument,
>> as main functions.
>>
>> Is there any particular restriction that requires the whole-program
>> analysis to begin from a main(String[]) function (i.e. it is just
>> impossible to begin whole-program exploration from a non-main()
>> function)? Or is it just that an arbitrary exploration was never
>> developed?
>>
>> Help would be much appreciated :)
>>
>> Thanks!
>> Jiaqi Tan
>> _______________________________________________
>> Soot-list mailing list
>> Soot-list at sable.mcgill.ca
>> http://mailman.cs.mcgill.ca/mailman/listinfo/soot-list
>
>
>
> --
> 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