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git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/blob - arch/arm/include/asm/string.h
1 #ifndef __ASM_ARM_STRING_H
2 #define __ASM_ARM_STRING_H
5 * We don't do inline string functions, since the
6 * optimised inline asm versions are not small.
9 #define __HAVE_ARCH_STRRCHR
10 extern char * strrchr(const char * s
, int c
);
12 #define __HAVE_ARCH_STRCHR
13 extern char * strchr(const char * s
, int c
);
15 #define __HAVE_ARCH_MEMCPY
16 extern void * memcpy(void *, const void *, __kernel_size_t
);
18 #define __HAVE_ARCH_MEMMOVE
19 extern void * memmove(void *, const void *, __kernel_size_t
);
21 #define __HAVE_ARCH_MEMCHR
22 extern void * memchr(const void *, int, __kernel_size_t
);
24 #define __HAVE_ARCH_MEMSET
25 extern void * memset(void *, int, __kernel_size_t
);
27 #define __HAVE_ARCH_MEMSET32
28 extern void *__memset32(uint32_t *, uint32_t v
, __kernel_size_t
);
29 static inline void *memset32(uint32_t *p
, uint32_t v
, __kernel_size_t n
)
31 return __memset32(p
, v
, n
* 4);
34 #define __HAVE_ARCH_MEMSET64
35 extern void *__memset64(uint64_t *, uint32_t low
, __kernel_size_t
, uint32_t hi
);
36 static inline void *memset64(uint64_t *p
, uint64_t v
, __kernel_size_t n
)
38 return __memset64(p
, v
, n
* 8, v
>> 32);
41 extern void __memzero(void *ptr
, __kernel_size_t n
);
43 #define memset(p,v,n) \
45 void *__p = (p); size_t __n = n; \
47 if (__builtin_constant_p((v)) && (v) == 0) \
48 __memzero((__p),(__n)); \
50 memset((__p),(v),(__n)); \