linux-kernel - Re: Build regressions/improvements in v4.14-rc3

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Date:   Tue, 3 Oct 2017 11:27:27 +0200
From:   Thomas Meyer <thomas@...3r.de>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Build regressions/improvements in v4.14-rc3

On Tue, Oct 03, 2017 at 08:18:14PM +1100, Michael Ellerman wrote:
> Geert Uytterhoeven <geert@...ux-m68k.org> writes:
> 
> > Hi Thomas,
> >
> > On Mon, Oct 2, 2017 at 4:11 PM, Thomas Meyer <thomas@...3r.de> wrote:
> >> On Mon, Oct 02, 2017 at 11:49:33AM +0200, Geert Uytterhoeven wrote:
> >>> Below is the list of build error/warning regressions/improvements in
> >>> v4.14-rc3[1] compared to v4.13[2].
> >>
> >> a question regarding the um-defconfig build:
> >> http://kisskb.ellerman.id.au/kisskb/target/2974/
> >>
> >> The error thrown looks like a libc installation error. can this be fixed
> >> on the build server?
> >
> > I'll let Michael answer that question...
> 
> Thanks for the report.
> 
> I think the problem is simply that the toolchain has no libc, so it
> can't build UML (?).

Yes, UML needs a libc.

> 
> I've switched it to using one of the toolchains from Free Electrons,
> which is built with glibc, and that seems to be working:
> 
>   http://kisskb.ellerman.id.au/kisskb/buildresult/13171418/
> 
> 
> Let me know if that's no good.

Cool, excellent! Look good.

Is it also possible to add an allyesconfig and allmodconfig for UML?

Many thanks for looking into this.

with kind regards
thomas

> 
> cheers