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80 lines
2.4 KiB
80 lines
2.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __ALPHA_STRING_H__ |
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#define __ALPHA_STRING_H__ |
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#ifdef __KERNEL__ |
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/* |
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* GCC of any recent vintage doesn't do stupid things with bcopy. |
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* EGCS 1.1 knows all about expanding memcpy inline, others don't. |
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* |
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* Similarly for a memset with data = 0. |
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*/ |
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#define __HAVE_ARCH_MEMCPY |
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extern void * memcpy(void *, const void *, size_t); |
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#define __HAVE_ARCH_MEMMOVE |
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extern void * memmove(void *, const void *, size_t); |
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/* For backward compatibility with modules. Unused otherwise. */ |
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extern void * __memcpy(void *, const void *, size_t); |
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#define memcpy __builtin_memcpy |
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#define __HAVE_ARCH_MEMSET |
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extern void * __constant_c_memset(void *, unsigned long, size_t); |
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extern void * ___memset(void *, int, size_t); |
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extern void * __memset(void *, int, size_t); |
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extern void * memset(void *, int, size_t); |
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/* For gcc 3.x, we cannot have the inline function named "memset" because |
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the __builtin_memset will attempt to resolve to the inline as well, |
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leading to a "sorry" about unimplemented recursive inlining. */ |
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extern inline void *__memset(void *s, int c, size_t n) |
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{ |
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if (__builtin_constant_p(c)) { |
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if (__builtin_constant_p(n)) { |
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return __builtin_memset(s, c, n); |
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} else { |
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unsigned long c8 = (c & 0xff) * 0x0101010101010101UL; |
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return __constant_c_memset(s, c8, n); |
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} |
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} |
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return ___memset(s, c, n); |
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} |
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#define memset __memset |
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#define __HAVE_ARCH_STRCPY |
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extern char * strcpy(char *,const char *); |
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#define __HAVE_ARCH_STRNCPY |
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extern char * strncpy(char *, const char *, size_t); |
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#define __HAVE_ARCH_STRCAT |
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extern char * strcat(char *, const char *); |
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#define __HAVE_ARCH_STRNCAT |
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extern char * strncat(char *, const char *, size_t); |
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#define __HAVE_ARCH_STRCHR |
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extern char * strchr(const char *,int); |
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#define __HAVE_ARCH_STRRCHR |
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extern char * strrchr(const char *,int); |
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#define __HAVE_ARCH_STRLEN |
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extern size_t strlen(const char *); |
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#define __HAVE_ARCH_MEMCHR |
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extern void * memchr(const void *, int, size_t); |
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/* The following routine is like memset except that it writes 16-bit |
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aligned values. The DEST and COUNT parameters must be even for |
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correct operation. */ |
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#define __HAVE_ARCH_MEMSET16 |
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extern void * __memset16(void *dest, unsigned short, size_t count); |
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static inline void *memset16(uint16_t *p, uint16_t v, size_t n) |
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{ |
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if (__builtin_constant_p(v)) |
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return __constant_c_memset(p, 0x0001000100010001UL * v, n * 2); |
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return __memset16(p, v, n * 2); |
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} |
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#endif /* __KERNEL__ */ |
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#endif /* __ALPHA_STRING_H__ */
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