RE-APPLIED: [PATCH][FOCAL] UBUNTU: [Config] s390x bump march to z13, with tune to z15

[Seth Forshee]

On Tue, Oct 29, 2019 at 09:29:52PM +0100, Dimitri John Ledkov wrote:
> Which compiler are you using? Please provide full build log.
> 
> No, I do not mean z10.
> 
> I mean arch13 or z15 as should be renamed by now
> https://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg221632.html
> 
> GCC bootstrap in focal is bootstrapped for mtune z15.
> 
> ttps://launchpad.net/ubuntu/+source/gcc-9/9.2.1-12ubuntu1

Well, it did fail when I tried to build yesterday, but when I tried
again to get your full build log it built fine. No doubt our chroots go
updated between then and now.

I've re-applied the patch, sorry for the noise.

> 
> 
> On Tue, 29 Oct 2019, 21:24 Seth Forshee, <seth.forshee at canonical.com> wrote:
> 
> > On Tue, Oct 22, 2019 at 03:39:40PM -0500, Seth Forshee wrote:
> > > On Tue, Oct 22, 2019 at 02:40:06PM +0100, Dimitri John Ledkov wrote:
> > > > BugLink: https://bugs.launchpad.net/bugs/1837525
> > > >
> > > > Signed-off-by: Dimitri John Ledkov <xnox at ubuntu.com>
> > >
> > > Applied to unstable/master, thanks!
> >
> > Seems the compiler (or at least the cross compiler) in focal doesn't
> > support -mtune=z15:
> >
> > s390x-linux-gnu-gcc: error: unrecognized argument in option '-mtune=z15'
> > s390x-linux-gnu-gcc: note: valid arguments to '-mtune=' are: arch10 arch11
> > arch12 arch13 arch5 arch6 arch7 arch8 arch9 native z10 z13 z14 z196 z9-109
> > z9-ec z900 z990 zEC12; did you mean 'z10'?
> >
> > Seems we need to either put this off until we have compiler support, or
> > else tune for a different machine.
> >