1 /* 2 * Copyright (C) 2011 Andes Technology Corporation 3 * Copyright (C) 2010 Shawn Lin (nobuhiro (at) andestech.com) 4 * Copyright (C) 2011 Macpaul Lin (macpaul (at) andestech.com) 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file "COPYING" in the main directory of this archive 8 * for more details. 9 */ 10 11 #ifndef __ASM_NDS_STRING_H 12 #define __ASM_NDS_STRING_H 13 14 /* 15 * We don't do inline string functions, since the 16 * optimised inline asm versions are not small. 17 */ 18 19 #undef __HAVE_ARCH_STRRCHR 20 extern char *strrchr(const char *s, int c); 21 22 #undef __HAVE_ARCH_STRCHR 23 extern char *strchr(const char *s, int c); 24 25 #undef __HAVE_ARCH_MEMCPY 26 extern void *memcpy(void *, const void *, __kernel_size_t); 27 28 #undef __HAVE_ARCH_MEMMOVE 29 extern void *memmove(void *, const void *, __kernel_size_t); 30 31 #undef __HAVE_ARCH_MEMCHR 32 extern void *memchr(const void *, int, __kernel_size_t); 33 34 #undef __HAVE_ARCH_MEMZERO 35 #undef __HAVE_ARCH_MEMSET 36 extern void *memset(void *, int, __kernel_size_t); 37 38 #ifdef CONFIG_MARCO_MEMSET 39 extern void __memzero(void *ptr, __kernel_size_t n); 40 41 #define memset(p, v, n) \ 42 ({ \ 43 if ((n) != 0) { \ 44 if (__builtin_constant_p((v)) && (v) == 0) \ 45 __memzero((p), (n)); \ 46 else \ 47 memset((p), (v), (n)); \ 48 } \ 49 (p); \ 50 }) 51 52 #define memzero(p, n) ({ if ((n) != 0) __memzero((p), (n)); (p); }) 53 #else 54 extern void memzero(void *ptr, __kernel_size_t n); 55 #endif 56 57 #endif /* __ASM_NDS_STRING_H */ 58
