Re: [4.8, PATCH 0/26] Backport Power8 and LE support

[Bill Schmidt <wschmidt at linux dot vnet dot ibm dot com>]

On Wed, 2014-03-19 at 16:29 -0400, David Edelsohn wrote:
> On Wed, Mar 19, 2014 at 4:05 PM, Jakub Jelinek <jakub@redhat.com> wrote:
> > On Wed, Mar 19, 2014 at 02:23:58PM -0500, Bill Schmidt wrote:
> >> Support for Power8 features and the new powerpc64le-linux-gnu target,
> >> including the ELFv2 ABI, has been developed up till now on the
> >> ibm/gcc-4_8-branch.  It was appropriate to use this separate branch
> >> while the support was unstable, but this branch will not represent a
> >> particularly good support mechanism for distributions going forward.
> >> Most distros are set up to pull from the major release branches, and
> >> having a separate branch for one target is quite inconvenient.  Also,
> >> the ibm/gcc-4_8-branch's original purpose is to serve as the code base
> >> for IBM's Advance Toolchain 7.0.  Over time the two purposes that the
> >> branch currently serves will diverge and make things even more
> >> complicated.
> >>
> >> The code is now tested and stable enough that we are ready to backport
> >> this support to the FSF 4.8 branch.  This patch series constitutes that
> >> backport.
> >
> > I guess the most important question is what guarantees there are that it
> > won't affect non-powerpc* ports too much (my main concern is the 9/26 patch,
> > plus the C++ FE / libstdc++ changes), and how much does this affect
> > code generation and overall stability of the PowerPC big endian existing
> > targets.
> 
> Before this patch is approved, we are going to thoroughly confirm that
> it does not harm any other PowerPC targets (big endian PowerLinux,
> eABI, nor AIX). Any help with testng from the PPC eABI community is
> appreciated.

If anyone would like to help test this on another port, I'm attaching a
tarball containing the patches as a quilt series.

Thanks,
Bill

> 
> - David
>

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