kernel-ark/arch/sparc/include/asm/string_64.h
David S. Miller 4d14a45985 sparc: Stop trying to be so fancy and use __builtin_{memcpy,memset}()
This mirrors commit ff60fab71b
(x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy)

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-10 23:32:10 -08:00

63 lines
1.6 KiB
C

/*
* 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) 1996,1997,1999 Jakub Jelinek (jakub@redhat.com)
*/
#ifndef __SPARC64_STRING_H__
#define __SPARC64_STRING_H__
/* Really, userland/ksyms should not see any of this stuff. */
#ifdef __KERNEL__
#include <asm/asi.h>
#ifndef EXPORT_SYMTAB_STROPS
/* First the mem*() things. */
#define __HAVE_ARCH_MEMMOVE
extern void *memmove(void *, const void *, __kernel_size_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) \
({ \
extern void *__memscan_zero(void *, size_t); \
extern 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
extern int memcmp(const void *,const void *,__kernel_size_t);
/* Now the str*() stuff... */
#define __HAVE_ARCH_STRLEN
extern __kernel_size_t strlen(const char *);
#define __HAVE_ARCH_STRNCMP
extern int strncmp(const char *, const char *, __kernel_size_t);
#endif /* !EXPORT_SYMTAB_STROPS */
#endif /* __KERNEL__ */
#endif /* !(__SPARC64_STRING_H__) */