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Message-ID: <202112042133.KForMaM9-lkp@intel.com>
Date: Sat, 4 Dec 2021 21:25:11 +0800
From: kernel test robot <lkp@...el.com>
To: Mark Rutland <mark.rutland@....com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [mark:linkage/alias-rework 5/5] arch/x86/lib/memset_64.S:27:
multiple definition of `memset'; mm/kasan/shadow.o:mm/kasan/shadow.c:43:
first defined here
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git linkage/alias-rework
head: 237447148f41ca99a7b980037060b7a6f3afe535
commit: 237447148f41ca99a7b980037060b7a6f3afe535 [5/5] x86: remove SYM_FUNC_START_WEAK()
config: x86_64-randconfig-m001-20211203 (https://download.01.org/0day-ci/archive/20211204/202112042133.KForMaM9-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id=237447148f41ca99a7b980037060b7a6f3afe535
git remote add mark https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git
git fetch --no-tags mark linkage/alias-rework
git checkout 237447148f41ca99a7b980037060b7a6f3afe535
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
ld: arch/x86/lib/memset_64.o: in function `__memset':
>> arch/x86/lib/memset_64.S:27: multiple definition of `memset'; mm/kasan/shadow.o:mm/kasan/shadow.c:43: first defined here
vim +27 arch/x86/lib/memset_64.S
8d379dad8f1670d arch/x86_64/lib/memset.S Jan Beulich 2006-09-26 8
^1da177e4c3f415 arch/x86_64/lib/memset.S Linus Torvalds 2005-04-16 9 /*
2f19e06ac30771c arch/x86/lib/memset_64.S Fenghua Yu 2011-05-17 10 * ISO C memset - set a memory block to a byte value. This function uses fast
2f19e06ac30771c arch/x86/lib/memset_64.S Fenghua Yu 2011-05-17 11 * string to get better performance than the original function. The code is
6a6256f9e0ebaab arch/x86/lib/memset_64.S Adam Buchbinder 2016-02-23 12 * simpler and shorter than the original function as well.
^1da177e4c3f415 arch/x86_64/lib/memset.S Linus Torvalds 2005-04-16 13 *
^1da177e4c3f415 arch/x86_64/lib/memset.S Linus Torvalds 2005-04-16 14 * rdi destination
^1da177e4c3f415 arch/x86_64/lib/memset.S Linus Torvalds 2005-04-16 15 * rsi value (char)
^1da177e4c3f415 arch/x86_64/lib/memset.S Linus Torvalds 2005-04-16 16 * rdx count (bytes)
^1da177e4c3f415 arch/x86_64/lib/memset.S Linus Torvalds 2005-04-16 17 *
^1da177e4c3f415 arch/x86_64/lib/memset.S Linus Torvalds 2005-04-16 18 * rax original destination
^1da177e4c3f415 arch/x86_64/lib/memset.S Linus Torvalds 2005-04-16 19 */
6dcc5627f6aec4c arch/x86/lib/memset_64.S Jiri Slaby 2019-10-11 20 SYM_FUNC_START(__memset)
84d95ad4cb9015e arch/x86/lib/memset_64.S Borislav Petkov 2015-02-04 21 /*
84d95ad4cb9015e arch/x86/lib/memset_64.S Borislav Petkov 2015-02-04 22 * Some CPUs support enhanced REP MOVSB/STOSB feature. It is recommended
84d95ad4cb9015e arch/x86/lib/memset_64.S Borislav Petkov 2015-02-04 23 * to use it when possible. If not available, use fast string instructions.
84d95ad4cb9015e arch/x86/lib/memset_64.S Borislav Petkov 2015-02-04 24 *
84d95ad4cb9015e arch/x86/lib/memset_64.S Borislav Petkov 2015-02-04 25 * Otherwise, use original memset function.
84d95ad4cb9015e arch/x86/lib/memset_64.S Borislav Petkov 2015-02-04 26 */
84d95ad4cb9015e arch/x86/lib/memset_64.S Borislav Petkov 2015-02-04 @27 ALTERNATIVE_2 "jmp memset_orig", "", X86_FEATURE_REP_GOOD, \
84d95ad4cb9015e arch/x86/lib/memset_64.S Borislav Petkov 2015-02-04 28 "jmp memset_erms", X86_FEATURE_ERMS
84d95ad4cb9015e arch/x86/lib/memset_64.S Borislav Petkov 2015-02-04 29
8d379dad8f1670d arch/x86_64/lib/memset.S Jan Beulich 2006-09-26 30 movq %rdi,%r9
5d7244e7c984cec arch/x86/lib/memset_64.S Jan Beulich 2012-01-05 31 movq %rdx,%rcx
5d7244e7c984cec arch/x86/lib/memset_64.S Jan Beulich 2012-01-05 32 andl $7,%edx
5d7244e7c984cec arch/x86/lib/memset_64.S Jan Beulich 2012-01-05 33 shrq $3,%rcx
8d379dad8f1670d arch/x86_64/lib/memset.S Jan Beulich 2006-09-26 34 /* expand byte value */
8d379dad8f1670d arch/x86_64/lib/memset.S Jan Beulich 2006-09-26 35 movzbl %sil,%esi
8d379dad8f1670d arch/x86_64/lib/memset.S Jan Beulich 2006-09-26 36 movabs $0x0101010101010101,%rax
5d7244e7c984cec arch/x86/lib/memset_64.S Jan Beulich 2012-01-05 37 imulq %rsi,%rax
8d379dad8f1670d arch/x86_64/lib/memset.S Jan Beulich 2006-09-26 38 rep stosq
5d7244e7c984cec arch/x86/lib/memset_64.S Jan Beulich 2012-01-05 39 movl %edx,%ecx
8d379dad8f1670d arch/x86_64/lib/memset.S Jan Beulich 2006-09-26 40 rep stosb
8d379dad8f1670d arch/x86_64/lib/memset.S Jan Beulich 2006-09-26 41 movq %r9,%rax
8d379dad8f1670d arch/x86_64/lib/memset.S Jan Beulich 2006-09-26 42 ret
6dcc5627f6aec4c arch/x86/lib/memset_64.S Jiri Slaby 2019-10-11 43 SYM_FUNC_END(__memset)
784d5699eddc558 arch/x86/lib/memset_64.S Al Viro 2016-01-11 44 EXPORT_SYMBOL(__memset)
8d379dad8f1670d arch/x86_64/lib/memset.S Jan Beulich 2006-09-26 45
:::::: The code at line 27 was first introduced by commit
:::::: 84d95ad4cb9015ea953bf14cea05ba371d4d42bb x86/lib/memset_64.S: Convert to ALTERNATIVE_2 macro
:::::: TO: Borislav Petkov <bp@...e.de>
:::::: CC: Borislav Petkov <bp@...e.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
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