On Mon, Jun 4, 2018 at 11:01 AM, Adam Jackson <a...@redhat.com> wrote:
> On Mon, 2018-06-04 at 08:59 -0500, Ian Pilcher wrote: > > On 06/04/2018 04:28 AM, Florian Weimer wrote: > > > It should, because -march=x86-64 implies just SSE2 and FXSR, and Xeon > MP > > > supports both. But the intent is what the subject says: i686 binaries > > > are for running legacy software on x86-64 systems, and nothing more. > > > > So the 32-bit x86 SIG would be required to rebuild all of the userspace > > packages to run on actual 32-bit hardware, right? (What would those be > > called, since i686 is taken?) > > No. The 32-bit ABI level being targeted here is basically the Pentium > 4, which was a 32-bit part. On a P3 or older, yes, you'd need a > rebuild, but the P4 was 2001 so we're talking about hardware old enough > to vote here. > > If we did want to allow for pre-P4 32-bit userspace, what I'd probably > do is (mostly) change %_libdir to /usr/lib/sse2 for i686, and leave it > as /usr/lib for a (reintroduced) i586 architecture. > If there is truly a pressing need to enable SSE2 for *all* i686 binaries, I'd support this as a compromise. jeff -- Jeff Backus jeff.bac...@gmail.com http://github.com/jsbackus
_______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/Q7ZN5JPBX44TSYF5KBUY2656BQ5PRFQE/
