linux-kernel - Re: arch/mips/vdso/elf.S:1:0: error: '-march=r3900' requires '-mfp32'

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Date:   Tue, 13 Dec 2016 05:02:40 +0100
From:   Ralf Baechle <ralf@...ux-mips.org>
To:     kbuild test robot <fengguang.wu@...el.com>
Cc:     Alex Smith <alex.smith@...tec.com>, kbuild-all@...org,
        linux-kernel@...r.kernel.org,
        Markos Chandras <markos.chandras@...tec.com>
Subject: Re: arch/mips/vdso/elf.S:1:0: error: '-march=r3900' requires '-mfp32'

On Sun, Dec 11, 2016 at 09:04:48AM +0800, kbuild test robot wrote:

> FYI, the error/warning still remains.
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   045169816b31b10faed984b01c390db1b32ee4c1
> commit: ebb5e78cc63417a35254a791de66e1cc84f963cc MIPS: Initial implementation of a VDSO
> date:   1 year, 1 month ago
> config: mips-jmr3927_defconfig (attached as .config)
> compiler: mips-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
> reproduce:
>         wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout ebb5e78cc63417a35254a791de66e1cc84f963cc
>         # save the attached .config to linux build tree
>         make.cross ARCH=mips 

Which binutils are you using with this compiler?

Thanks,

  Ralf