Re: input constraints in atomic.h too loose ?

On 2/11/07, John David Anglin <[email protected]> wrote:
> > They are not global. They are local variables which are the rvalue in
> > an assignment to something else.
>
> Ok, then a register should be fine except you may have to make sure
> that you have the appropriate clobbers for the syscall.

What would be even more clever is to write:

register unsigned long lws_ret asm ("r28");
register unsigned long lws_errno asm ("r21");

Use "=r" in the output constraint, and remove these from the clobber.

c.