From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/alpha/include/asm/string.h | 66 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 arch/alpha/include/asm/string.h (limited to 'arch/alpha/include/asm/string.h') diff --git a/arch/alpha/include/asm/string.h b/arch/alpha/include/asm/string.h new file mode 100644 index 00000000..b02b8a28 --- /dev/null +++ b/arch/alpha/include/asm/string.h @@ -0,0 +1,66 @@ +#ifndef __ALPHA_STRING_H__ +#define __ALPHA_STRING_H__ + +#ifdef __KERNEL__ + +/* + * GCC of any recent vintage doesn't do stupid things with bcopy. + * EGCS 1.1 knows all about expanding memcpy inline, others don't. + * + * Similarly for a memset with data = 0. + */ + +#define __HAVE_ARCH_MEMCPY +extern void * memcpy(void *, const void *, size_t); +#define __HAVE_ARCH_MEMMOVE +extern void * memmove(void *, const void *, size_t); + +/* For backward compatibility with modules. Unused otherwise. */ +extern void * __memcpy(void *, const void *, size_t); + +#define memcpy __builtin_memcpy + +#define __HAVE_ARCH_MEMSET +extern void * __constant_c_memset(void *, unsigned long, size_t); +extern void * __memset(void *, int, size_t); +extern void * memset(void *, int, size_t); + +#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))) + +#define __HAVE_ARCH_STRCPY +extern char * strcpy(char *,const char *); +#define __HAVE_ARCH_STRNCPY +extern char * strncpy(char *, const char *, size_t); +#define __HAVE_ARCH_STRCAT +extern char * strcat(char *, const char *); +#define __HAVE_ARCH_STRNCAT +extern char * strncat(char *, const char *, size_t); +#define __HAVE_ARCH_STRCHR +extern char * strchr(const char *,int); +#define __HAVE_ARCH_STRRCHR +extern char * strrchr(const char *,int); +#define __HAVE_ARCH_STRLEN +extern size_t strlen(const char *); +#define __HAVE_ARCH_MEMCHR +extern void * memchr(const void *, int, size_t); + +/* The following routine is like memset except that it writes 16-bit + aligned values. The DEST and COUNT parameters must be even for + correct operation. */ + +#define __HAVE_ARCH_MEMSETW +extern void * __memsetw(void *dest, unsigned short, size_t count); + +#define memsetw(s, c, n) \ +(__builtin_constant_p(c) \ + ? __constant_c_memset((s),0x0001000100010001UL*(unsigned short)(c),(n)) \ + : __memsetw((s),(c),(n))) + +#endif /* __KERNEL__ */ + +#endif /* __ALPHA_STRING_H__ */ -- cgit v1.2.3