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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#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);
27
28#define memset(s, c, n) \
29(__builtin_constant_p(c) \
30 ? (__builtin_constant_p(n) && (c) == 0 \
31 ? __builtin_memset((s),0,(n)) \
32 : __constant_c_memset((s),0x0101010101010101UL*(unsigned char)(c),(n))) \
33 : __memset((s),(c),(n)))
34
35#define __HAVE_ARCH_STRCPY
36extern char * strcpy(char *,const char *);
37#define __HAVE_ARCH_STRNCPY
38extern char * strncpy(char *, const char *, size_t);
39#define __HAVE_ARCH_STRCAT
40extern char * strcat(char *, const char *);
41#define __HAVE_ARCH_STRNCAT
42extern char * strncat(char *, const char *, size_t);
43#define __HAVE_ARCH_STRCHR
44extern char * strchr(const char *,int);
45#define __HAVE_ARCH_STRRCHR
46extern char * strrchr(const char *,int);
47#define __HAVE_ARCH_STRLEN
48extern size_t strlen(const char *);
49#define __HAVE_ARCH_MEMCHR
50extern void * memchr(const void *, int, size_t);
51
52/* The following routine is like memset except that it writes 16-bit
53 aligned values. The DEST and COUNT parameters must be even for
54 correct operation. */
55
56#define __HAVE_ARCH_MEMSETW
57extern void * __memsetw(void *dest, unsigned short, size_t count);
58
59#define memsetw(s, c, n) \
60(__builtin_constant_p(c) \
61 ? __constant_c_memset((s),0x0001000100010001UL*(unsigned short)(c),(n)) \
62 : __memsetw((s),(c),(n)))
63
Linus Torvalds1da177e2005-04-16 15:20:36 -070064#endif /* __KERNEL__ */
65
66#endif /* __ALPHA_STRING_H__ */