arch/powerpc/include/asm/string.h

   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 void memcpy_flushcache(void *dest, const void *src, size_t size);
  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
  57 extern void *__memset16(uint16_t *, uint16_t v, __kernel_size_t);
  58 extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t);
  59 extern void *__memset64(uint64_t *, uint64_t v, __kernel_size_t);
  60
  61 static inline void *memset16(uint16_t *p, uint16_t v, __kernel_size_t n)
  62 {
  63         return __memset16(p, v, n * 2);
  64 }
  65
  66 static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n)
  67 {
  68         return __memset32(p, v, n * 4);
  69 }
  70
  71 static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n)
  72 {
  73         return __memset64(p, v, n * 8);
  74 }
  75 #endif
  76 #else
  77 #ifndef CONFIG_KASAN
  78 #define __HAVE_ARCH_STRLEN
  79 #endif
  80
  81 extern void *memset16(uint16_t *, uint16_t, __kernel_size_t);
  82 #endif
  83 #endif /* __KERNEL__ */
  84
  85 #endif  /* _ASM_POWERPC_STRING_H */