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#ifndef _X86_64_STRING_H_

#define _X86_64_STRING_H_

#ifdef __KERNEL__

#define struct_cpy(x,y) (*(x)=*(y))

/* Written 2002 by Andi Kleen */

/* Only used for special circumstances. Stolen from i386/string.h */

static inline void * __inline_memcpy(void * to, const void * from, size_t n)

{

unsigned long d0, d1, d2;

__asm__ __volatile__(

        "rep ; movsl\n\t"

        "testb $2,%b4\n\t"

        "je 1f\n\t"

        "movsw\n"

        "1:\ttestb $1,%b4\n\t"

        "je 2f\n\t"

        "movsb\n"

        "2:"

        : "=&c" (d0), "=&D" (d1), "=&S" (d2)

        :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)

        : "memory");

return (to);

}

/* Even with __builtin_ the compiler may decide to use the out of line

   function. */

#define __HAVE_ARCH_MEMCPY 1

extern void *__memcpy(void *to, const void *from, size_t len);

#define memcpy(dst,src,len) \

        ({ size_t __len = (len);                                \

           void *__ret;                                         \

           if (__builtin_constant_p(len) && __len >= 64)        \

                 __ret = __memcpy((dst),(src),__len);           \

           else                                                 \

                 __ret = __builtin_memcpy((dst),(src),__len);   \

           __ret; })

#define __HAVE_ARCH_MEMSET

#define memset __builtin_memset

#define __HAVE_ARCH_MEMMOVE

void * memmove(void * dest,const void *src,size_t count);

#endif /* __KERNEL__ */

#endif