arch/arm64/include/asm/string.h

   1 /*
   2  * Copyright (C) 2013 ARM Ltd.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16 #ifndef __ASM_STRING_H
  17 #define __ASM_STRING_H
  18
  19 #define __HAVE_ARCH_STRRCHR
  20 extern char *strrchr(const char *, int c);
  21
  22 #define __HAVE_ARCH_STRCHR
  23 extern char *strchr(const char *, int c);
  24
  25 #define __HAVE_ARCH_STRCMP
  26 extern int strcmp(const char *, const char *);
  27
  28 #define __HAVE_ARCH_STRNCMP
  29 extern int strncmp(const char *, const char *, __kernel_size_t);
  30
  31 #define __HAVE_ARCH_STRLEN
  32 extern __kernel_size_t strlen(const char *);
  33
  34 #define __HAVE_ARCH_STRNLEN
  35 extern __kernel_size_t strnlen(const char *, __kernel_size_t);
  36
  37 #define __HAVE_ARCH_MEMCPY
  38 extern void *memcpy(void *, const void *, __kernel_size_t);
  39 extern void *__memcpy(void *, const void *, __kernel_size_t);
  40
  41 #define __HAVE_ARCH_MEMMOVE
  42 extern void *memmove(void *, const void *, __kernel_size_t);
  43 extern void *__memmove(void *, const void *, __kernel_size_t);
  44
  45 #define __HAVE_ARCH_MEMCHR
  46 extern void *memchr(const void *, int, __kernel_size_t);
  47
  48 #define __HAVE_ARCH_MEMSET
  49 extern void *memset(void *, int, __kernel_size_t);
  50 extern void *__memset(void *, int, __kernel_size_t);
  51
  52 #define __HAVE_ARCH_MEMCMP
  53 extern int memcmp(const void *, const void *, size_t);
  54
  55 #ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
  56 #define __HAVE_ARCH_MEMCPY_FLUSHCACHE
  57 void memcpy_flushcache(void *dst, const void *src, size_t cnt);
  58 #endif
  59
  60 #if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
  61
  62 /*
  63  * For files that are not instrumented (e.g. mm/slub.c) we
  64  * should use not instrumented version of mem* functions.
  65  */
  66
  67 #define memcpy(dst, src, len) __memcpy(dst, src, len)
  68 #define memmove(dst, src, len) __memmove(dst, src, len)
  69 #define memset(s, c, n) __memset(s, c, n)
  70
  71 #ifndef __NO_FORTIFY
  72 #define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
  73 #endif
  74
  75 #endif
  76
  77 #endif