1. 根目录:
2. arch
3. sparc
4. include
5. asm
6. string_32.h

/*
 * string.h: External definitions for optimized assembly string
 *           routines for the Linux Kernel.
 *
 * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu)
 * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
 */

#ifndef __SPARC_STRING_H__
#define __SPARC_STRING_H__

#include <asm/page.h>

/* Really, userland/ksyms should not see any of this stuff. */

#ifdef __KERNEL__

void __memmove(void *,const void *,__kernel_size_t);

#ifndef EXPORT_SYMTAB_STROPS

/* First the mem*() things. */
#define __HAVE_ARCH_MEMMOVE
#undef memmove
#define memmove(_to, _from, _n) \
({ \
	void *_t = (_to); \
	__memmove(_t, (_from), (_n)); \
	_t; \
})

#define __HAVE_ARCH_MEMCPY
#define memcpy(t, f, n) __builtin_memcpy(t, f, n)

#define __HAVE_ARCH_MEMSET
#define memset(s, c, count) __builtin_memset(s, c, count)

#define __HAVE_ARCH_MEMSCAN

#undef memscan
#define memscan(__arg0, __char, __arg2)						\
({										\
	void *__memscan_zero(void *, size_t);					\
	void *__memscan_generic(void *, int, size_t);				\
	void *__retval, *__addr = (__arg0);					\
	size_t __size = (__arg2);						\
										\
	if(__builtin_constant_p(__char) && !(__char))				\
		__retval = __memscan_zero(__addr, __size);			\
	else									\
		__retval = __memscan_generic(__addr, (__char), __size);		\
										\
	__retval;								\
})

#define __HAVE_ARCH_MEMCMP
int memcmp(const void *,const void *,__kernel_size_t);

/* Now the str*() stuff... */
#define __HAVE_ARCH_STRLEN
__kernel_size_t strlen(const char *);

#define __HAVE_ARCH_STRNCMP
int strncmp(const char *, const char *, __kernel_size_t);

#endif /* !EXPORT_SYMTAB_STROPS */

#endif /* __KERNEL__ */

#endif /* !(__SPARC_STRING_H__) */