linux-kernel - Re: collect2: error: ld returned 1 exit status

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Message-ID: <20151123124518.GA22401@wfg-t540p.sh.intel.com>
Date:	Mon, 23 Nov 2015 20:45:18 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Michael Ellerman <mpe@...erman.id.au>
Cc:	Anton Blanchard <anton@...ba.org>, kbuild-all@...org,
	linux-kernel@...r.kernel.org
Subject: Re: collect2: error: ld returned 1 exit status

Hi Michael,

On Mon, Nov 23, 2015 at 08:54:53PM +1100, Michael Ellerman wrote:
> On Sun, 2015-11-22 at 09:05 +0800, kbuild test robot wrote:
> 
> > Hi Anton,
> > 
> > FYI, the error/warning still remains.
> 
> ...
> 
> >    /usr/lib/gcc-cross/powerpc64le-linux-gnu/5/../../../../powerpc64le-linux-gnu/bin/ld: arch/powerpc/kernel/vdso64/sigtramp.o: file class ELFCLASS64 incompatible with ELFCLASS32
> >    /usr/lib/gcc-cross/powerpc64le-linux-gnu/5/../../../../powerpc64le-linux-gnu/bin/ld: final link failed: File in wrong format
> > > > collect2: error: ld returned 1 exit status
> 
> Hi Fengguang,
> 
> How new is your GCC? This looks like a bug that was fixed recently (September) in GCC:
> 
>   https://github.com/gcc-mirror/gcc/commit/0012c439035bc1d5843e5c8e72c6c5fad357d389

I'm using Debian's cross gcc 5.2.1:

        gcc-powerpc64le-linux-gnu            5.2.1-14+really5.2.1-13

It may take some time for debian to catchup up with the newer version.

Thanks,
Fengguang
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