1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
#ifndef __ALPHA_STRING_H__
#define __ALPHA_STRING_H__
#ifdef __KERNEL__
/*
* GCC of any recent vintage doesn't do stupid things with bcopy. Of
* EGCS-devel vintage, it knows all about expanding memcpy inline.
* For things other than EGCS-devel but still recent, GCC will expand
* __builtin_memcpy as a simple call to memcpy.
*
* Similarly for a memset with data = 0.
*/
#define __HAVE_ARCH_MEMCPY
/* For backward compatibility with modules. Unused otherwise. */
extern void * __memcpy(void *, const void *, size_t);
#if __GNUC__ > 2 || __GNUC_MINOR__ >= 8
#define memcpy __builtin_memcpy
#endif
#define __HAVE_ARCH_MEMSET
extern void * __constant_c_memset(void *, unsigned long, long);
extern void * __memset(void *, char, size_t);
#if __GNUC__ > 2 || __GNUC_MINOR__ >= 8
#define memset(s, c, n) \
(__builtin_constant_p(c) \
? (__builtin_constant_p(n) && (c) == 0 \
? __builtin_memset((s),0,(n)) \
: __constant_c_memset((s),0x0101010101010101UL*(unsigned char)(c),(n))) \
: __memset((s),(c),(n)))
#else
#define memset(s, c, n) \
(__builtin_constant_p(c) \
? __constant_c_memset((s),0x0101010101010101UL*(unsigned char)(c),(n)) \
: __memset((s),(c),(n)))
#endif
#define __HAVE_ARCH_STRCPY
#define __HAVE_ARCH_STRNCPY
#define __HAVE_ARCH_STRCAT
#define __HAVE_ARCH_STRNCAT
#define __HAVE_ARCH_STRCHR
#define __HAVE_ARCH_STRRCHR
#define __HAVE_ARCH_STRLEN
#endif /* __KERNEL__ */
#endif /* __ALPHA_STRING_H__ */
|
