arch/sparc/include/asm/string_64.h

   1 /*
   2  * string.h: External definitions for optimized assembly string
   3  *           routines for the Linux Kernel.
   4  *
   5  * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu)
   6  * Copyright (C) 1996,1997,1999 Jakub Jelinek (jakub@redhat.com)
   7  */
   8
   9 #ifndef __SPARC64_STRING_H__
  10 #define __SPARC64_STRING_H__
  11
  12 /* Really, userland/ksyms should not see any of this stuff. */
  13
  14 #ifdef __KERNEL__
  15
  16 #include <asm/asi.h>
  17
  18 #ifndef EXPORT_SYMTAB_STROPS
  19
  20 /* First the mem*() things. */
  21 #define __HAVE_ARCH_MEMMOVE
  22 extern void *memmove(void *, const void *, __kernel_size_t);
  23
  24 #define __HAVE_ARCH_MEMCPY
  25 #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
  26
  27 #define __HAVE_ARCH_MEMSET
  28 #define memset(s, c, count) __builtin_memset(s, c, count)
  29
  30 #define __HAVE_ARCH_MEMSCAN
  31
  32 #undef memscan
  33 #define memscan(__arg0, __char, __arg2)                                 \
  34 ({                                                                      \
  35         extern void *__memscan_zero(void *, size_t);                    \
  36         extern void *__memscan_generic(void *, int, size_t);            \
  37         void *__retval, *__addr = (__arg0);                             \
  38         size_t __size = (__arg2);                                       \
  39                                                                         \
  40         if(__builtin_constant_p(__char) && !(__char))                   \
  41                 __retval = __memscan_zero(__addr, __size);              \
  42         else                                                            \
  43                 __retval = __memscan_generic(__addr, (__char), __size); \
  44                                                                         \
  45         __retval;                                                       \
  46 })
  47
  48 #define __HAVE_ARCH_MEMCMP
  49 extern int memcmp(const void *,const void *,__kernel_size_t);
  50
  51 /* Now the str*() stuff... */
  52 #define __HAVE_ARCH_STRLEN
  53 extern __kernel_size_t strlen(const char *);
  54
  55 #define __HAVE_ARCH_STRNCMP
  56 extern int strncmp(const char *, const char *, __kernel_size_t);
  57
  58 #endif /* !EXPORT_SYMTAB_STROPS */
  59
  60 #endif /* __KERNEL__ */
  61
  62 #endif /* !(__SPARC64_STRING_H__) */