linux-kernel - arch/mips/vdso/elf.S:1:0: error: '-march=r3000' requires '-mfp32'

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Date:	Tue, 2 Aug 2016 10:07:28 +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=r3000' 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:   77a87824ed676ca8ff8482e4157d3adb284fd381
commit: ebb5e78cc63417a35254a791de66e1cc84f963cc MIPS: Initial implementation of a VDSO
date:   9 months ago
config: mips-decstation_defconfig (attached as .config)
compiler: mipsel-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=r3000' requires '-mfp32'
    /*
    ^
--
>> arch/mips/vdso/sigreturn.S:1:0: error: '-march=r3000' 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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Download attachment ".config.gz" of type "application/octet-stream" (9037 bytes)