dtrace discuss - May 2007 - copyout or bcopy ?

I''m wanting to be able to modify an arg passed to a given function at
 the entry point of the function.
  The arg would usually be of type char *, i.e. a string.

  Is is better to use copyout or bcopy ?
     Or is there no real preference ?

Regards,
 
-- 
Sean.
.

The copyout() subroutine lets you modify data in a traced user process. The
bcopy() subroutine is for modifying variables only in your D program itself.
They are very different in what they allow; you''ll need to use copyou()
for
what you''re trying to do.

Adam

On Tue, May 15, 2007 at 08:03:39AM +0100, Sean McGrath - Sun Microsystems
Ireland wrote:
> 
> 
>  I''m wanting to be able to modify an arg passed to a given
function at
>  the entry point of the function.
>   The arg would usually be of type char *, i.e. a string.
> 
>   Is is better to use copyout or bcopy ?
>      Or is there no real preference ?
> 
> Regards,
>  
> -- 
> Sean.
> .
> _______________________________________________
> dtrace-discuss mailing list
> dtrace-discuss at opensolaris.org
-- 
Adam Leventhal, Solaris Kernel Development       http://blogs.sun.com/ahl