arch/x86/boot/string.h

   1 #ifndef BOOT_STRING_H
   2 #define BOOT_STRING_H
   3
   4 /* Undef any of these macros coming from string_32.h. */
   5 #undef memcpy
   6 #undef memset
   7 #undef memcmp
   8
   9 void *memcpy(void *dst, const void *src, size_t len);
  10 void *memset(void *dst, int c, size_t len);
  11 int memcmp(const void *s1, const void *s2, size_t len);
  12
  13 /*
  14  * Access builtin version by default. If one needs to use optimized version,
  15  * do "undef memcpy" in .c file and link against right string.c
  16  */
  17 #define memcpy(d,s,l) __builtin_memcpy(d,s,l)
  18 #define memset(d,c,l) __builtin_memset(d,c,l)
  19 #define memcmp  __builtin_memcmp
  20
  21 #endif /* BOOT_STRING_H */