[Soot-list] queries on threads

[Archie Cobbs]

Patrick LAM wrote:
> On Tue, 4 Apr 2006, Arnab De wrote:
>>         staticinvoke <java.lang.Thread: void yield()>();
>>         $r7 = this.<Friendly: Friendly partner>;
>>         specialinvoke $r7.<Friendly: void hugBack()>();
>>         return;
>>     }
>>
>> Please observe that there is a "specialinvoke" in the last but one line
>> (just before the return statement). As far as I understand, specialinvokes
>> are for constructors. Can anyone please tell me why specialinvoke has come
>> here?
> 
> That is kind of odd.  However, I compiled your Java code and then looked
> at it using javap.  It also contains a specialinvoke:
> 
>    64:  aload_0
>    65:  getfield        #11; //Field partner:LFriendly;
>    68:  invokespecial   #16; //Method hugBack:()V
>    71:  return
> 
> Usually, specialinvoke is used for constructors, but there are certain
> other cases where it can occur.  I'm not especially familiar with them.
> In any case, Soot is just processing what it gets.

INVOKESPECIAL is used when invoking private methods. For private
methods, you want non-virtual method dispatch.

-Archie

__________________________________________________________________________
Archie Cobbs      *        CTO, Awarix        *      http://www.awarix.com