Re: kread() and NULL pointers

[Mike Mason <mmlnx at us dot ibm dot com>]

Roland McGrath wrote:
> > Does kread() generate an error if you pass it a NULL pointer?  
>
> Yes.  It's safely caught like all errors, but it only returns successfully
> when given a valid pointer.

So should the following generate an error?  It doesn't.  It just prints "ptr = 0" and exits.

function test_addr:long () %{
       void *nullptr = NULL;
       THIS->__retvalue = (long) kread(&(nullptr));
       CATCH_DEREF_FAULT();
%}


probe begin {
       ptr = test_addr()
       printf("ptr = %d\n", ptr)
       exit()
}