include/linux/kmsan_string.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * KMSAN string functions API used in other headers.
   4  *
   5  * Copyright (C) 2022 Google LLC
   6  * Author: Alexander Potapenko <glider@google.com>
   7  *
   8  */
   9 #ifndef _LINUX_KMSAN_STRING_H
  10 #define _LINUX_KMSAN_STRING_H
  11
  12 /*
  13  * KMSAN overrides the default memcpy/memset/memmove implementations in the
  14  * kernel, which requires having __msan_XXX function prototypes in several other
  15  * headers. Keep them in one place instead of open-coding.
  16  */
  17 void *__msan_memcpy(void *dst, const void *src, size_t size);
  18 void *__msan_memset(void *s, int c, size_t n);
  19 void *__msan_memmove(void *dest, const void *src, size_t len);
  20
  21 #endif /* _LINUX_KMSAN_STRING_H */