* [kees:kspp/memcpy/next-20210618/v0 81/82] arch/arm/boot/compressed/string.c:29:7: error: redefinition of parameter '__builtin_object_size'
@ 2021-06-19 20:43 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-06-19 20:43 UTC (permalink / raw)
To: kbuild-all
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git kspp/memcpy/next-20210618/v0
head: fd2aa2a169de8bde9502e7a2fc48cd03d4bfd996
commit: 6d805912063804ea975440760b79392fc0c03948 [81/82] fortify: Work around Clang inlining bugs
config: arm-randconfig-r024-20210618 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project d1baf2895467735ab14f4b3415fce204c0cc8e7f)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?id=6d805912063804ea975440760b79392fc0c03948
git remote add kees https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git
git fetch --no-tags kees kspp/memcpy/next-20210618/v0
git checkout 6d805912063804ea975440760b79392fc0c03948
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All error/warnings (new ones prefixed by >>):
>> arch/arm/boot/compressed/string.c:29:7: error: expected parameter declarator
void *memcpy(void *__dest, __const void *__src, size_t __n)
^
include/linux/fortify-string.h:304:32: note: expanded from macro 'memcpy'
__builtin_object_size(p, 1), \
^
>> arch/arm/boot/compressed/string.c:29:7: error: expected ')'
include/linux/fortify-string.h:304:32: note: expanded from macro 'memcpy'
__builtin_object_size(p, 1), \
^
arch/arm/boot/compressed/string.c:29:7: note: to match this '('
include/linux/fortify-string.h:304:28: note: expanded from macro 'memcpy'
__builtin_object_size(p, 1), \
^
>> arch/arm/boot/compressed/string.c:29:7: warning: declaration specifier missing, defaulting to 'int'
void *memcpy(void *__dest, __const void *__src, size_t __n)
^
include/linux/fortify-string.h:304:7: note: expanded from macro 'memcpy'
__builtin_object_size(p, 1), \
^
>> arch/arm/boot/compressed/string.c:29:7: error: expected parameter declarator
include/linux/fortify-string.h:305:32: note: expanded from macro 'memcpy'
__builtin_object_size(q, 1))
^
>> arch/arm/boot/compressed/string.c:29:7: error: expected ')'
include/linux/fortify-string.h:305:32: note: expanded from macro 'memcpy'
__builtin_object_size(q, 1))
^
arch/arm/boot/compressed/string.c:29:7: note: to match this '('
include/linux/fortify-string.h:305:28: note: expanded from macro 'memcpy'
__builtin_object_size(q, 1))
^
>> arch/arm/boot/compressed/string.c:29:7: warning: declaration specifier missing, defaulting to 'int'
void *memcpy(void *__dest, __const void *__src, size_t __n)
^
include/linux/fortify-string.h:305:7: note: expanded from macro 'memcpy'
__builtin_object_size(q, 1))
^
>> arch/arm/boot/compressed/string.c:29:7: error: redefinition of parameter '__builtin_object_size'
include/linux/fortify-string.h:305:7: note: expanded from macro 'memcpy'
__builtin_object_size(q, 1))
^
arch/arm/boot/compressed/string.c:29:7: note: previous declaration is here
include/linux/fortify-string.h:304:7: note: expanded from macro 'memcpy'
__builtin_object_size(p, 1), \
^
>> arch/arm/boot/compressed/string.c:29:7: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions]
void *memcpy(void *__dest, __const void *__src, size_t __n)
^
include/linux/fortify-string.h:305:7: note: expanded from macro 'memcpy'
__builtin_object_size(q, 1))
^
arch/arm/boot/compressed/string.c:63:7: error: expected parameter declarator
void *memmove(void *__dest, __const void *__src, size_t count)
^
include/linux/fortify-string.h:316:34: note: expanded from macro 'memmove'
__builtin_object_size(p, 1), \
^
arch/arm/boot/compressed/string.c:63:7: error: expected ')'
include/linux/fortify-string.h:316:34: note: expanded from macro 'memmove'
__builtin_object_size(p, 1), \
^
arch/arm/boot/compressed/string.c:63:7: note: to match this '('
include/linux/fortify-string.h:316:30: note: expanded from macro 'memmove'
__builtin_object_size(p, 1), \
^
arch/arm/boot/compressed/string.c:63:7: warning: declaration specifier missing, defaulting to 'int'
void *memmove(void *__dest, __const void *__src, size_t count)
^
include/linux/fortify-string.h:316:9: note: expanded from macro 'memmove'
__builtin_object_size(p, 1), \
^
arch/arm/boot/compressed/string.c:63:7: error: expected parameter declarator
include/linux/fortify-string.h:317:34: note: expanded from macro 'memmove'
__builtin_object_size(q, 1))
^
arch/arm/boot/compressed/string.c:63:7: error: expected ')'
include/linux/fortify-string.h:317:34: note: expanded from macro 'memmove'
__builtin_object_size(q, 1))
^
arch/arm/boot/compressed/string.c:63:7: note: to match this '('
include/linux/fortify-string.h:317:30: note: expanded from macro 'memmove'
__builtin_object_size(q, 1))
^
arch/arm/boot/compressed/string.c:63:7: warning: declaration specifier missing, defaulting to 'int'
void *memmove(void *__dest, __const void *__src, size_t count)
^
include/linux/fortify-string.h:317:9: note: expanded from macro 'memmove'
__builtin_object_size(q, 1))
^
arch/arm/boot/compressed/string.c:63:7: error: redefinition of parameter '__builtin_object_size'
include/linux/fortify-string.h:317:9: note: expanded from macro 'memmove'
__builtin_object_size(q, 1))
^
arch/arm/boot/compressed/string.c:63:7: note: previous declaration is here
include/linux/fortify-string.h:316:9: note: expanded from macro 'memmove'
__builtin_object_size(p, 1), \
^
arch/arm/boot/compressed/string.c:63:7: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions]
void *memmove(void *__dest, __const void *__src, size_t count)
^
include/linux/fortify-string.h:317:9: note: expanded from macro 'memmove'
__builtin_object_size(q, 1))
^
>> arch/arm/boot/compressed/string.c:72:10: error: too many arguments to function call, expected 1, have 2
return memcpy(__dest, __src, count);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/fortify-string.h:304:32: note: expanded from macro 'memcpy'
__builtin_object_size(p, 1), \
~~~~~~~~~~~~~~~~~~~~~ ^
>> arch/arm/boot/compressed/string.c:72:10: error: too many arguments to function call, expected 1, have 2
return memcpy(__dest, __src, count);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/fortify-string.h:305:32: note: expanded from macro 'memcpy'
__builtin_object_size(q, 1))
~~~~~~~~~~~~~~~~~~~~~ ^
6 warnings and 12 errors generated.
vim +/__builtin_object_size +29 arch/arm/boot/compressed/string.c
d6d51a96c7d63b Linus Walleij 2020-10-25 28
df4879fa2603fb Nicolas Pitre 2011-09-13 @29 void *memcpy(void *__dest, __const void *__src, size_t __n)
df4879fa2603fb Nicolas Pitre 2011-09-13 30 {
df4879fa2603fb Nicolas Pitre 2011-09-13 31 int i = 0;
df4879fa2603fb Nicolas Pitre 2011-09-13 32 unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
df4879fa2603fb Nicolas Pitre 2011-09-13 33
df4879fa2603fb Nicolas Pitre 2011-09-13 34 for (i = __n >> 3; i > 0; i--) {
df4879fa2603fb Nicolas Pitre 2011-09-13 35 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 36 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 37 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 38 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 39 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 40 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 41 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 42 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 43 }
df4879fa2603fb Nicolas Pitre 2011-09-13 44
df4879fa2603fb Nicolas Pitre 2011-09-13 45 if (__n & 1 << 2) {
df4879fa2603fb Nicolas Pitre 2011-09-13 46 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 47 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 48 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 49 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 50 }
df4879fa2603fb Nicolas Pitre 2011-09-13 51
df4879fa2603fb Nicolas Pitre 2011-09-13 52 if (__n & 1 << 1) {
df4879fa2603fb Nicolas Pitre 2011-09-13 53 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 54 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 55 }
df4879fa2603fb Nicolas Pitre 2011-09-13 56
df4879fa2603fb Nicolas Pitre 2011-09-13 57 if (__n & 1)
df4879fa2603fb Nicolas Pitre 2011-09-13 58 *d++ = *s++;
df4879fa2603fb Nicolas Pitre 2011-09-13 59
df4879fa2603fb Nicolas Pitre 2011-09-13 60 return __dest;
df4879fa2603fb Nicolas Pitre 2011-09-13 61 }
df4879fa2603fb Nicolas Pitre 2011-09-13 62
df4879fa2603fb Nicolas Pitre 2011-09-13 63 void *memmove(void *__dest, __const void *__src, size_t count)
df4879fa2603fb Nicolas Pitre 2011-09-13 64 {
df4879fa2603fb Nicolas Pitre 2011-09-13 65 unsigned char *d = __dest;
df4879fa2603fb Nicolas Pitre 2011-09-13 66 const unsigned char *s = __src;
df4879fa2603fb Nicolas Pitre 2011-09-13 67
df4879fa2603fb Nicolas Pitre 2011-09-13 68 if (__dest == __src)
df4879fa2603fb Nicolas Pitre 2011-09-13 69 return __dest;
df4879fa2603fb Nicolas Pitre 2011-09-13 70
df4879fa2603fb Nicolas Pitre 2011-09-13 71 if (__dest < __src)
df4879fa2603fb Nicolas Pitre 2011-09-13 @72 return memcpy(__dest, __src, count);
df4879fa2603fb Nicolas Pitre 2011-09-13 73
df4879fa2603fb Nicolas Pitre 2011-09-13 74 while (count--)
df4879fa2603fb Nicolas Pitre 2011-09-13 75 d[count] = s[count];
df4879fa2603fb Nicolas Pitre 2011-09-13 76 return __dest;
df4879fa2603fb Nicolas Pitre 2011-09-13 77 }
df4879fa2603fb Nicolas Pitre 2011-09-13 78
:::::: The code@line 29 was first introduced by commit
:::::: df4879fa2603fbf0804a80f9f146ef9023dd621f ARM: zImage: gather some string functions into string.c
:::::: TO: Nicolas Pitre <nicolas.pitre@linaro.org>
:::::: CC: Nicolas Pitre <nico@fluxnic.net>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2021-06-19 20:43 [kees:kspp/memcpy/next-20210618/v0 81/82] arch/arm/boot/compressed/string.c:29:7: error: redefinition of parameter '__builtin_object_size' kernel test robot
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