diff options
Diffstat (limited to 'arch/xtensa/include/asm/string.h')
| -rw-r--r-- | arch/xtensa/include/asm/string.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/xtensa/include/asm/string.h b/arch/xtensa/include/asm/string.h index 8d5d9dfadb09..89b51a0c752f 100644 --- a/arch/xtensa/include/asm/string.h +++ b/arch/xtensa/include/asm/string.h @@ -53,7 +53,7 @@ static inline char *strncpy(char *__dest, const char *__src, size_t __n) "bne %1, %5, 1b\n" "2:" : "=r" (__dest), "=r" (__src), "=&r" (__dummy) - : "0" (__dest), "1" (__src), "r" (__src+__n) + : "0" (__dest), "1" (__src), "r" ((uintptr_t)__src+__n) : "memory"); return __xdest; @@ -101,21 +101,40 @@ static inline int strncmp(const char *__cs, const char *__ct, size_t __n) "2:\n\t" "sub %2, %2, %3" : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&r" (__dummy) - : "0" (__cs), "1" (__ct), "r" (__cs+__n)); + : "0" (__cs), "1" (__ct), "r" ((uintptr_t)__cs+__n)); return __res; } #define __HAVE_ARCH_MEMSET extern void *memset(void *__s, int __c, size_t __count); +extern void *__memset(void *__s, int __c, size_t __count); #define __HAVE_ARCH_MEMCPY extern void *memcpy(void *__to, __const__ void *__from, size_t __n); +extern void *__memcpy(void *__to, __const__ void *__from, size_t __n); #define __HAVE_ARCH_MEMMOVE extern void *memmove(void *__dest, __const__ void *__src, size_t __n); +extern void *__memmove(void *__dest, __const__ void *__src, size_t __n); /* Don't build bcopy at all ... */ #define __HAVE_ARCH_BCOPY +#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__) + +/* + * For files that are not instrumented (e.g. mm/slub.c) we + * should use not instrumented version of mem* functions. + */ + +#define memcpy(dst, src, len) __memcpy(dst, src, len) +#define memmove(dst, src, len) __memmove(dst, src, len) +#define memset(s, c, n) __memset(s, c, n) + +#ifndef __NO_FORTIFY +#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */ +#endif +#endif + #endif /* _XTENSA_STRING_H */ |