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_STRNCPY 9 #define __HAVE_ARCH_STRNCMP 10 #define __HAVE_ARCH_MEMCHR 11 #define __HAVE_ARCH_MEMCMP 12 #define __HAVE_ARCH_MEMSET16 13 #endif 14 15 #define __HAVE_ARCH_MEMSET 16 #define __HAVE_ARCH_MEMCPY 17 #define __HAVE_ARCH_MEMMOVE 18 #define __HAVE_ARCH_MEMCPY_FLUSHCACHE 19 20 extern char * strcpy(char *,const char *); 21 extern char * strncpy(char *,const char *, __kernel_size_t); 22 extern __kernel_size_t strlen(const char *); 23 extern int strcmp(const char *,const char *); 24 extern int strncmp(const char *, const char *, __kernel_size_t); 25 extern char * strcat(char *, const char *); 26 extern void * memset(void *,int,__kernel_size_t); 27 extern void * memcpy(void *,const void *,__kernel_size_t); 28 extern void * memmove(void *,const void *,__kernel_size_t); 29 extern int memcmp(const void *,const void *,__kernel_size_t); 30 extern void * memchr(const void *,int,__kernel_size_t); 31 extern void * memcpy_flushcache(void *,const void *,__kernel_size_t); 32 33 void *__memset(void *s, int c, __kernel_size_t count); 34 void *__memcpy(void *to, const void *from, __kernel_size_t n); 35 void *__memmove(void *to, const void *from, __kernel_size_t n); 36 37 #if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__) 38 /* 39 * For files that are not instrumented (e.g. mm/slub.c) we 40 * should use not instrumented version of mem* functions. 41 */ 42 #define memcpy(dst, src, len) __memcpy(dst, src, len) 43 #define memmove(dst, src, len) __memmove(dst, src, len) 44 #define memset(s, c, n) __memset(s, c, n) 45 46 #ifndef __NO_FORTIFY 47 #define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */ 48 #endif 49 50 #endif 51 52 #ifdef CONFIG_PPC64 53 #ifndef CONFIG_KASAN 54 #define __HAVE_ARCH_MEMSET32 55 #define __HAVE_ARCH_MEMSET64 56 #define __HAVE_ARCH_MEMCPY_MCSAFE 57 58 extern int memcpy_mcsafe(void *dst, const void *src, __kernel_size_t sz); 59 extern void *__memset16(uint16_t *, uint16_t v, __kernel_size_t); 60 extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t); 61 extern void *__memset64(uint64_t *, uint64_t v, __kernel_size_t); 62 63 static inline void *memset16(uint16_t *p, uint16_t v, __kernel_size_t n) 64 { 65 return __memset16(p, v, n * 2); 66 } 67 68 static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n) 69 { 70 return __memset32(p, v, n * 4); 71 } 72 73 static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n) 74 { 75 return __memset64(p, v, n * 8); 76 } 77 #endif 78 #else 79 #ifndef CONFIG_KASAN 80 #define __HAVE_ARCH_STRLEN 81 #endif 82 83 extern void *memset16(uint16_t *, uint16_t, __kernel_size_t); 84 #endif 85 #endif /* __KERNEL__ */ 86 87 #endif /* _ASM_POWERPC_STRING_H */ 88