cvs commit: src/sys/sparc64/include atomic.h

[John Baldwin]

On Friday 28 May 2004 03:02 pm, Daniel Eischen wrote:
> On Fri, 28 May 2004, Scott Long wrote:
> > John Baldwin wrote:
> > > On Friday 28 May 2004 04:38 am, Daniel Eischen wrote:
> > >>On Fri, 28 May 2004, Mike Makonnen wrote:
> > >>>Thanks. I'll change those enums to integers soon (others have
> > >>> suggested it as well). It's just that I find them so convenient when
> > >>> debugging.
> > >>
> > >>And the use of atomic_cmpset_foo() isn't going to work on
> > >>80386 since it doesn't have cmpxchgl.  <machine/atomic.h>
> > >>will try to use cli instead.
> > >
> > > I'd say just punt and suggest that 80386 machines use libc_r.
> >
> > I think that this is a reasonable suggestion.  libc_r likely has a
> > longer lifespan than 80386 at this point (hard to believe that the
> > 80386 has been out for nearly 20 years!).
>
> Works for me.  That makes it easier for libpthread as well since
> we'd like to use it also.  We avoided using it and used atomic
> swaps instead.

By all means, please feel free to use atomic_cmpset() in libpthread.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org