[Soot-list] How to get a "this" reference?

[Kanad Sinha]

Hi,

I've trying to post this message for a long time now. I apologise if I 
am spamming everyone with this more than once.

First of all, apart from the fact that Soot is a great framework, I'd
like to commend you all on the great documentation that you've managed
to compile and maintain. Introducing myself to Soot has been far easier
than I imagined, even though I am new to Java.

I am trying to profile class files to record the run-time classes which
run the respective methods of an application. I went through your
profiling examples and they were a great help. I'm trying to do an
instrumentation in each method to insert some code:

Class temp = getClass();    // new local created via instrumentation
RecordData.reportRuntimeClass(temp);    // RecordData is the
wrapper-class that has the static method to record the class in it

To do so, my code looks something like,

// Get the getClass() method
SootClass pClass = thisMethod.getDeclaringClass();
  while(pClass.hasSuperclass())
  {
       pClass = pClass.getSuperclass();
  }
  SootMethod gcCall = pClass.getMethod("java.lang.Class getClass()");

// Assign "tmpClass = getClass();"
  Local tmpClass = Jimple.v().newLocal("temp",
RefType.v("java.lang.Class"));
  body.getLocals().add(tmpRef);
  AssignStmt toAssign = Jimple.v().newAssignStmt(#####, \\ What to use 
here, is what I haven't figured out
                             Jimple.v().newVirtualInvokeExpr(tmpRef,
gcCall.makeRef()));

// Call the recording method
InvokeExpr invExpr =

Jimple.v().newStaticInvokeExpr(reportRuntime.makeRef(), tmpClass);
Stmt invStmt = Jimple.v().newInvokeStmt(invExpr);

What should I use as the "base" of the virtual-invoke statement? I'm
guessing it should be a "this" pointer, but I haven't been able to
figure out how to obtain it at compile-time.

Any help would be appreciated. Thanks a lot,
Kanad.


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