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

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Message-ID: <201609142354.KqLVNndf%fengguang.wu@intel.com>
Date:   Wed, 14 Sep 2016 23:51:55 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Alex Smith <alex.smith@...tec.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Ralf Baechle <ralf@...ux-mips.org>,
        Markos Chandras <markos.chandras@...tec.com>
Subject: arch/mips/vdso/elf.S:1:0: error: '-march=r3900' requires '-mfp32'

Hi Alex,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5924bbecd0267d87c24110cbe2041b5075173a25
commit: ebb5e78cc63417a35254a791de66e1cc84f963cc MIPS: Initial implementation of a VDSO
date:   10 months ago
config: mips-jmr3927_defconfig (attached as .config)
compiler: mips-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609
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 

All errors (new ones prefixed by >>):

>> arch/mips/vdso/elf.S:1:0: error: '-march=r3900' requires '-mfp32'
    /*
    ^
--
>> arch/mips/vdso/sigreturn.S:1:0: error: '-march=r3900' requires '-mfp32'
    /*
    ^

vim +1 arch/mips/vdso/elf.S

   > 1	/*
     2	 * Copyright (C) 2015 Imagination Technologies
     3	 * Author: Alex Smith <alex.smith@...tec.com>
     4	 *

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0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Download attachment ".config.gz" of type "application/octet-stream" (10118 bytes)