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Message-ID: <201703271633.xbYHmB37%fengguang.wu@intel.com>
Date: Mon, 27 Mar 2017 16:43:05 +0800
From: kbuild test robot <lkp@...el.com>
To: Eddie Kovsky <ewk@...ovsky.org>
Cc: kbuild-all@...org, jeyu@...hat.com, rusty@...tcorp.com.au,
keescook@...omium.org, linux-kernel@...r.kernel.org,
kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH v4 2/2] extable: verify address is read-only
Hi Eddie,
[auto build test ERROR on next-20170323]
[cannot apply to linus/master linux/master jeyu/modules-next v4.9-rc8 v4.9-rc7 v4.9-rc6 v4.11-rc4]
[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/Eddie-Kovsky/module-verify-address-is-read-only/20170327-142922
config: blackfin-BF561-EZKIT-SMP_defconfig (attached as .config)
compiler: bfin-uclinux-gcc (GCC) 6.2.0
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=blackfin
All errors (new ones prefixed by >>):
kernel/built-in.o: In function `core_kernel_rodata':
>> kernel/extable.c:169: undefined reference to `__start_data_ro_after_init'
>> kernel/extable.c:169: undefined reference to `__start_data_ro_after_init'
>> kernel/extable.c:169: undefined reference to `__end_data_ro_after_init'
>> kernel/extable.c:169: undefined reference to `__end_data_ro_after_init'
>> kernel/extable.c:169: undefined reference to `__start_data_ro_after_init'
>> kernel/extable.c:169: undefined reference to `__start_data_ro_after_init'
>> kernel/extable.c:169: undefined reference to `__end_data_ro_after_init'
>> kernel/extable.c:169: undefined reference to `__end_data_ro_after_init'
vim +169 kernel/extable.c
163 int core_kernel_rodata(unsigned long addr)
164 {
165 if (addr >= (unsigned long)__start_rodata &&
166 addr < (unsigned long)__end_rodata)
167 return 1;
168
> 169 if (addr >= (unsigned long)__start_data_ro_after_init &&
170 addr < (unsigned long)__end_data_ro_after_init)
171 return 1;
172
---
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/gzip" (10729 bytes)
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