1#ifndef __ALPHA_STRING_H__
2#define __ALPHA_STRING_H__
3
4#ifdef __KERNEL__
5
6/*
7 * GCC of any recent vintage doesn't do stupid things with bcopy.
8 * EGCS 1.1 knows all about expanding memcpy inline, others don't.
9 *
10 * Similarly for a memset with data = 0.
11 */
12
13#define __HAVE_ARCH_MEMCPY
14extern void * memcpy(void *, const void *, size_t);
15#define __HAVE_ARCH_MEMMOVE
16extern void * memmove(void *, const void *, size_t);
17
18/* For backward compatibility with modules.  Unused otherwise.  */
19extern void * __memcpy(void *, const void *, size_t);
20
21#define memcpy __builtin_memcpy
22
23#define __HAVE_ARCH_MEMSET
24extern void * __constant_c_memset(void *, unsigned long, size_t);
25extern void * ___memset(void *, int, size_t);
26extern void * __memset(void *, int, size_t);
27extern void * memset(void *, int, size_t);
28
29/* For gcc 3.x, we cannot have the inline function named "memset" because
30   the __builtin_memset will attempt to resolve to the inline as well,
31   leading to a "sorry" about unimplemented recursive inlining.  */
32extern inline void *__memset(void *s, int c, size_t n)
33{
34	if (__builtin_constant_p(c)) {
35		if (__builtin_constant_p(n)) {
36			return __builtin_memset(s, c, n);
37		} else {
38			unsigned long c8 = (c & 0xff) * 0x0101010101010101UL;
39			return __constant_c_memset(s, c8, n);
40		}
41	}
42	return ___memset(s, c, n);
43}
44
45#define memset __memset
46
47#define __HAVE_ARCH_STRCPY
48extern char * strcpy(char *,const char *);
49#define __HAVE_ARCH_STRNCPY
50extern char * strncpy(char *, const char *, size_t);
51#define __HAVE_ARCH_STRCAT
52extern char * strcat(char *, const char *);
53#define __HAVE_ARCH_STRNCAT
54extern char * strncat(char *, const char *, size_t);
55#define __HAVE_ARCH_STRCHR
56extern char * strchr(const char *,int);
57#define __HAVE_ARCH_STRRCHR
58extern char * strrchr(const char *,int);
59#define __HAVE_ARCH_STRLEN
60extern size_t strlen(const char *);
61#define __HAVE_ARCH_MEMCHR
62extern void * memchr(const void *, int, size_t);
63
64/* The following routine is like memset except that it writes 16-bit
65   aligned values.  The DEST and COUNT parameters must be even for
66   correct operation.  */
67
68#define __HAVE_ARCH_MEMSETW
69extern void * __memsetw(void *dest, unsigned short, size_t count);
70
71#define memsetw(s, c, n)						 \
72(__builtin_constant_p(c)						 \
73 ? __constant_c_memset((s),0x0001000100010001UL*(unsigned short)(c),(n)) \
74 : __memsetw((s),(c),(n)))
75
76#endif /* __KERNEL__ */
77
78#endif /* __ALPHA_STRING_H__ */
79