Implement C11 _Atomic
Joseph S. Myers
joseph@codesourcery.com
Thu Nov 21 18:49:00 GMT 2013
On Thu, 21 Nov 2013, Andrew MacLeod wrote:
> > I'm trying to avoid ABI breakage of course. I'd rather not have
> > to ask people not to use _Atomic with 4.9 for CRIS ports using
> > official releases or have ABI breakage with the next release.
> > Maybe there's one other port in the same situation...
>
> None I am aware of, but that doesn't mean much :-)
It has been suggested that hppa may have interesting issues for atomics -
but I'd think atomics support for it in GCC would mainly be for GNU/Linux,
where you have kernel helpers that may avoid the issues with the
underlying architecture.
Note that if you want libstdc++ atomics to be ABI compatible with C
atomics then there may be more work to do on that side (again, there are
pieces on the branch).
--
Joseph S. Myers
joseph@codesourcery.com
More information about the Gcc-patches
mailing list