linux-kernel - Re: [PATCH v3 1/2] powerpc/32: add stack protector support

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Message-ID: <201809301023.o5oGJmtR%fengguang.wu@intel.com>
Date:   Sun, 30 Sep 2018 10:16:24 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Christophe Leroy <christophe.leroy@....fr>
Cc:     kbuild-all@...org,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] powerpc/32: add stack protector support

Hi Christophe,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.19-rc5 next-20180928]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Christophe-Leroy/powerpc-32-add-stack-protector-support/20180926-123625
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-mpc86xx_basic_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   arch/powerpc/platforms/powermac/bootx_init.o: In function `bootx_add_display_props.isra.1':
>> bootx_init.c:(.init.text+0x504): undefined reference to `__stack_chk_fail_local'
   arch/powerpc/platforms/powermac/bootx_init.o: In function `bootx_scan_dt_build_struct':
   bootx_init.c:(.init.text+0x820): undefined reference to `__stack_chk_fail_local'
   arch/powerpc/platforms/powermac/bootx_init.o: In function `bootx_init':
   bootx_init.c:(.init.text+0xbbc): undefined reference to `__stack_chk_fail_local'
   powerpc-linux-gnu-ld: .tmp_vmlinux1: hidden symbol `__stack_chk_fail_local' isn't defined
   powerpc-linux-gnu-ld: final link failed: Bad value

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

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