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

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Message-ID: <201604031743.uDRj6hGN%fengguang.wu@intel.com>
Date:	Sun, 3 Apr 2016 17:13:45 +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:   f7eeb8a87c033d126ff6b8c35405ba5dc4e55754
commit: ebb5e78cc63417a35254a791de66e1cc84f963cc MIPS: Initial implementation of a VDSO
date:   5 months ago
config: mips-jmr3927_defconfig (attached as .config)
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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