[Bug 1522410] Re: [Ubuntu 16.04] Enable P9 toolchain

[Steve Langasek]

On Wed, Jan 13, 2016 at 08:10:43PM -0000, bugproxy wrote:
> The toolchain is made up of the important binutils, GCC and GLIBC
> packages.  Secondarily, you can add GDB to the list, but it's POWER9
> disassembler support is inherited from binutils.

> From my recollection, Ububtu 16.04 will use binutils 2.26, GCC 5.x and
> GLIBC 2.23 versions.  Binutils 2.26 contains full POWER9 support, so no
> patches are required for that.  GLIBC 2.23 currently has all of the POWER9
> support we'll be able to deliver in time for 16.04, so no patches are
> required for that either.  The only package that requires backports if GCC
> and those are already available in out IBM GCC 5 branch which Canonical is
> already pulling from.  We are only missing which patches from that branch
> has Canonical pulled and which haven't.  Maybe they have pulled them all?

As far as I'm aware, we are not currently pulling any gcc patches directly
from IBM, but only using the code that is included in the upstream gcc-5
branch.  Can you please point us at the revision on the IBM gcc-5 branch
that contains the necessary P9 support, so we can evaluate this for
inclusion?


** Package changed: ubuntu => gcc-5 (Ubuntu)

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https://bugs.launchpad.net/bugs/1522410

Title:
  [Ubuntu 16.04] Enable P9 toolchain

Status in gcc-5 package in Ubuntu:
  Incomplete

Bug description:
  This is a feature request to track the inclusion of POWER9 enabled in
  Ubuntu.

  This is required as a building block for POWER9 development in Ubuntu
  16.04. The final goal is to have Ubuntu 17.04 as the primary distro to
  (partially?) support POWER9 machines.

  Mirroring for Canonical awareness. A backport will be required.

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