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); 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 64#endif /* __KERNEL__ */ 65 66#endif /* __ALPHA_STRING_H__ */ 67