linux-kernel - Re: build failure on powerpc with current -git

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Message-ID: <fb412d760810220821m3b27dfeas83fd732406747568@mail.gmail.com>
Date:	Wed, 22 Oct 2008 10:21:09 -0500
From:	"Hollis Blanchard" <hollis@...mni.cmu.edu>
To:	"Paul Mackerras" <paulus@...ba.org>
Cc:	"Stephen Rothwell" <sfr@...b.auug.org.au>,
	"Linux kernel" <linux-kernel@...r.kernel.org>,
	linuxppc-dev@...abs.org
Subject: Re: build failure on powerpc with current -git

(Oops, resending in plain text...)

On Tue, Oct 21, 2008 at 10:58 PM, Paul Mackerras <paulus@...ba.org> wrote:
>
> Stephen Rothwell writes:
>
> > On Tue, 21 Oct 2008 16:33:10 +1100 Paul Mackerras <paulus@...ba.org> wrote:
> > >
> > > It's a bug in older versions of ld (including 2.16.1) that's fixed in
> > > the current version (2.18).  However, this patch appears to work
> > > around the problem - at least, it let me build a 32-bit kernel with a
> > > cross-toolchain including a 2.16.1 ld.  Let me know if this gets it
> > > working for you.
> >
> > With that patch applied I got these errors for a powerpc ppc64_defconfig
> > build (linux-next).
> >
> > /usr/bin/objcopy: Warning: '/dev/null' is not an ordinary file
>
> Hmmm, so do I, and in fact the arch/powerpc/boot/wrapper change now
> seems to be unnecessary with my cross-compile setup (which has ld
> 2.16.1), whereas yesterday I'm sure it got errors.  Weird.
>
> Chris, could you try just the following change (my previous patch
> without the arch/powerpc/boot/wrapper change) and let me know if it
> fixes things with the ld you use?

Works for me.

binutils 2.16.1 is the most recent binutils that will build with
crosstool, so IMHO it's worth supporting. :)

-Hollis
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