LXR linux/arch/sparc/include/asm/string

   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
  22extern 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
  49extern int memcmp(const void *,const void *,__kernel_size_t);
  50
  51/* Now the str*() stuff... */
  52#define __HAVE_ARCH_STRLEN
  53extern __kernel_size_t strlen(const char *);
  54
  55#define __HAVE_ARCH_STRNCMP
  56extern 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__) */
  63