LXR linux/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
  20extern char *strrchr(const char *, int c);
  21
  22#define __HAVE_ARCH_STRCHR
  23extern char *strchr(const char *, int c);
  24
  25#define __HAVE_ARCH_STRCMP
  26extern int strcmp(const char *, const char *);
  27
  28#define __HAVE_ARCH_STRNCMP
  29extern int strncmp(const char *, const char *, __kernel_size_t);
  30
  31#define __HAVE_ARCH_STRLEN
  32extern __kernel_size_t strlen(const char *);
  33
  34#define __HAVE_ARCH_STRNLEN
  35extern __kernel_size_t strnlen(const char *, __kernel_size_t);
  36
  37#define __HAVE_ARCH_MEMCPY
  38extern void *memcpy(void *, const void *, __kernel_size_t);
  39extern void *__memcpy(void *, const void *, __kernel_size_t);
  40
  41#define __HAVE_ARCH_MEMMOVE
  42extern void *memmove(void *, const void *, __kernel_size_t);
  43extern void *__memmove(void *, const void *, __kernel_size_t);
  44
  45#define __HAVE_ARCH_MEMCHR
  46extern void *memchr(const void *, int, __kernel_size_t);
  47
  48#define __HAVE_ARCH_MEMSET
  49extern void *memset(void *, int, __kernel_size_t);
  50extern void *__memset(void *, int, __kernel_size_t);
  51
  52#define __HAVE_ARCH_MEMCMP
  53extern int memcmp(const void *, const void *, size_t);
  54
  55
  56#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
  57
  58/*
  59 * For files that are not instrumented (e.g. mm/slub.c) we
  60 * should use not instrumented version of mem* functions.
  61 */
  62
  63#define memcpy(dst, src, len) __memcpy(dst, src, len)
  64#define memmove(dst, src, len) __memmove(dst, src, len)
  65#define memset(s, c, n) __memset(s, c, n)
  66#endif
  67
  68#endif
  69