1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_POWERPC_STRING_H 3 #define _ASM_POWERPC_STRING_H 4 5 #ifdef __KERNEL__ 6 7 #ifndef CONFIG_KASAN 8 #define __HAVE_ARCH_STRNCMP 9 #define __HAVE_ARCH_MEMCHR 10 #define __HAVE_ARCH_MEMCMP 11 #define __HAVE_ARCH_MEMSET16 12 #endif 13 14 #define __HAVE_ARCH_MEMSET 15 #define __HAVE_ARCH_MEMCPY 16 #define __HAVE_ARCH_MEMMOVE 17 #define __HAVE_ARCH_MEMCPY_FLUSHCACHE 18 19 extern char * strcpy(char *,const char *); 20 extern __kernel_size_t strlen(const char *); 21 extern int strcmp(const char *,const char *); 22 extern int strncmp(const char *, const char *, __kernel_size_t); 23 extern char * strcat(char *, const char *); 24 extern void * memset(void *,int,__kernel_size_t); 25 extern void * memcpy(void *,const void *,__kernel_size_t); 26 extern void * memmove(void *,const void *,__kernel_size_t); 27 extern int memcmp(const void *,const void *,__kernel_size_t); 28 extern void * memchr(const void *,int,__kernel_size_t); 29 void memcpy_flushcache(void *dest, const void *src, size_t size); 30 31 #ifdef CONFIG_KASAN 32 /* Used by mm/kasan as raw backends to bypass KASAN checking. */ 33 #define __memset memset 34 #define __memcpy memcpy 35 #define __memmove memmove 36 #endif /* CONFIG_KASAN */ 37 38 #ifdef CONFIG_PPC64 39 #ifndef CONFIG_KASAN 40 #define __HAVE_ARCH_MEMSET32 41 #define __HAVE_ARCH_MEMSET64 42 43 extern void *__memset16(uint16_t *, uint16_t v, __kernel_size_t); 44 extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t); 45 extern void *__memset64(uint64_t *, uint64_t v, __kernel_size_t); 46 47 static inline void *memset16(uint16_t *p, uint16_t v, __kernel_size_t n) 48 { 49 return __memset16(p, v, n * 2); 50 } 51 52 static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n) 53 { 54 return __memset32(p, v, n * 4); 55 } 56 57 static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n) 58 { 59 return __memset64(p, v, n * 8); 60 } 61 #endif 62 #else 63 #ifndef CONFIG_KASAN 64 #define __HAVE_ARCH_STRLEN 65 #endif 66 67 extern void *memset16(uint16_t *, uint16_t, __kernel_size_t); 68 #endif 69 #endif /* __KERNEL__ */ 70 71 #endif /* _ASM_POWERPC_STRING_H */ 72