[PATCH, PowerPC] ABI fixes / improvements for powerpc64-linux

Ulrich Weigand Ulrich.Weigand at de.ibm.com
Thu Jul 10 08:17:27 PDT 2014

Hal Finkel <hfinkel at anl.gov> wrote on 10.07.2014 01:08:47:

> The new ABI has not yet been published, and I doubt that changing
> interactions with over-aligned types, vector types, etc. will break
> much (if anything at all) in this already-built Linux distribution.
> However, getting these things right affects the performance of
> internal interfaces of performance-tuned codes (especially those
> that use over-aligned structures, vector intrinsics, etc.) and there
> is no reason to do a bad job in that area now.
> In other news, there is a supported Linux distro that ships with TOT gcc?

Yes, Ubuntu 14.04 LTS is a supported distro on the ELFv2 ABI (it's gcc 4.8,
but with the ELFv2 ABI patches backported), and there's a build of Debian
supported via the OpenPower group.  A couple of other supported distros are
about to be released.


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