[Soot-list] How to transform a Grimp file into class file

[Yongzhi Wang]

Dear All,

I want to transform java program into a class file with some manipulations.
My original transformation step is as follows. The transformation is
performed in "jtp" step.

Java --> Jimple --> class

However, since Jimple can only accommodate three operators in each
expression. I create some Grimp expressions (using Grimp.v().newXXX()
function) during the java to jimple transformation. Therefore, the
generated jimple file contains statements containing more than three
operators. When I transform the generated Jimple into class, I got the
following error.

My question is how can I transform my generated jimple file (containing
multiple operators) into class file? Or I simply shouldn't use the
Grimp.v().newXXX() functions in the jtp transformation step? I know I can
transform the generated expressions into jimple standard three operator
format. However, I just want to see if there's any quicker way as I tried.

java.lang.reflect.InvocationTargetException

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at ca.mcgill.sable.soot.launching.SootThread.run(SootThread.java:138)

Caused by: java.lang.ClassCastException: soot.grimp.internal.GAddExpr
cannot be cast to soot.jimple.ConvertToBaf

at
soot.jimple.internal.AbstractStaticInvokeExpr.convertToBaf(AbstractStaticInvokeExpr.java:135)

at soot.jimple.internal.JIfStmt.convertToBaf(JIfStmt.java:277)

at soot.baf.BafBody.<init>(BafBody.java:104)

at soot.baf.Baf.newBody(Baf.java:560)

at soot.PackManager.runBodyPacks(PackManager.java:793)

at soot.PackManager.runBodyPacks(PackManager.java:463)

at soot.PackManager.runBodyPacks(PackManager.java:380)

at soot.PackManager.runPacks(PackManager.java:357)

at soot.Main.run(Main.java:198)

at soot.Main.main(Main.java:141)


Thanks!


Yongzhi
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