arch/riscv/include/asm/string.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2013 Regents of the University of California
   4  */
   5
   6 #ifndef _ASM_RISCV_STRING_H
   7 #define _ASM_RISCV_STRING_H
   8
   9 #include <linux/types.h>
  10 #include <linux/linkage.h>
  11
  12 #define __HAVE_ARCH_MEMSET
  13 extern asmlinkage void *memset(void *, int, size_t);
  14 extern asmlinkage void *__memset(void *, int, size_t);
  15 #define __HAVE_ARCH_MEMCPY
  16 extern asmlinkage void *memcpy(void *, const void *, size_t);
  17 extern asmlinkage void *__memcpy(void *, const void *, size_t);
  18 #define __HAVE_ARCH_MEMMOVE
  19 extern asmlinkage void *memmove(void *, const void *, size_t);
  20 extern asmlinkage void *__memmove(void *, const void *, size_t);
  21
  22 #if !(defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS))
  23 #define __HAVE_ARCH_STRCMP
  24 extern asmlinkage int strcmp(const char *cs, const char *ct);
  25
  26 #define __HAVE_ARCH_STRLEN
  27 extern asmlinkage __kernel_size_t strlen(const char *);
  28
  29 #define __HAVE_ARCH_STRNCMP
  30 extern asmlinkage int strncmp(const char *cs, const char *ct, size_t count);
  31 #endif
  32
  33 /* For those files which don't want to check by kasan. */
  34 #if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
  35 #define memcpy(dst, src, len) __memcpy(dst, src, len)
  36 #define memset(s, c, n) __memset(s, c, n)
  37 #define memmove(dst, src, len) __memmove(dst, src, len)
  38
  39 #ifndef __NO_FORTIFY
  40 #define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
  41 #endif
  42
  43 #endif
  44 #endif /* _ASM_RISCV_STRING_H */