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 14 extern void * memcpy(void *, const void *, size_t); 15 #define __HAVE_ARCH_MEMMOVE 16 extern void * memmove(void *, const void *, size_t); 17 18 /* For backward compatibility with modules. Unused otherwise. */ 19 extern void * __memcpy(void *, const void *, size_t); 20 21 #define memcpy __builtin_memcpy 22 23 #define __HAVE_ARCH_MEMSET 24 extern void * __constant_c_memset(void *, unsigned long, size_t); 25 extern void * ___memset(void *, int, size_t); 26 extern void * __memset(void *, int, size_t); 27 extern 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. */ 32 extern 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 48 extern char * strcpy(char *,const char *); 49 #define __HAVE_ARCH_STRNCPY 50 extern char * strncpy(char *, const char *, size_t); 51 #define __HAVE_ARCH_STRCAT 52 extern char * strcat(char *, const char *); 53 #define __HAVE_ARCH_STRNCAT 54 extern char * strncat(char *, const char *, size_t); 55 #define __HAVE_ARCH_STRCHR 56 extern char * strchr(const char *,int); 57 #define __HAVE_ARCH_STRRCHR 58 extern char * strrchr(const char *,int); 59 #define __HAVE_ARCH_STRLEN 60 extern size_t strlen(const char *); 61 #define __HAVE_ARCH_MEMCHR 62 extern 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 69 extern 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