string.h 1.9 KB

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  1. /* SPDX-License-Identifier: GPL-2.0-only */
  2. /*
  3. * Copyright (C) 2013 ARM Ltd.
  4. */
  5. #ifndef __ASM_STRING_H
  6. #define __ASM_STRING_H
  7. #if !(defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS))
  8. #define __HAVE_ARCH_STRRCHR
  9. extern char *strrchr(const char *, int c);
  10. #define __HAVE_ARCH_STRCHR
  11. extern char *strchr(const char *, int c);
  12. #define __HAVE_ARCH_STRCMP
  13. extern int strcmp(const char *, const char *);
  14. #define __HAVE_ARCH_STRNCMP
  15. extern int strncmp(const char *, const char *, __kernel_size_t);
  16. #define __HAVE_ARCH_STRLEN
  17. extern __kernel_size_t strlen(const char *);
  18. #define __HAVE_ARCH_STRNLEN
  19. extern __kernel_size_t strnlen(const char *, __kernel_size_t);
  20. #define __HAVE_ARCH_MEMCMP
  21. extern int memcmp(const void *, const void *, size_t);
  22. #define __HAVE_ARCH_MEMCHR
  23. extern void *memchr(const void *, int, __kernel_size_t);
  24. #endif
  25. #define __HAVE_ARCH_MEMCPY
  26. extern void *memcpy(void *, const void *, __kernel_size_t);
  27. extern void *__memcpy(void *, const void *, __kernel_size_t);
  28. #define __HAVE_ARCH_MEMMOVE
  29. extern void *memmove(void *, const void *, __kernel_size_t);
  30. extern void *__memmove(void *, const void *, __kernel_size_t);
  31. #define __HAVE_ARCH_MEMSET
  32. extern void *memset(void *, int, __kernel_size_t);
  33. extern void *__memset(void *, int, __kernel_size_t);
  34. #ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
  35. #define __HAVE_ARCH_MEMCPY_FLUSHCACHE
  36. void memcpy_flushcache(void *dst, const void *src, size_t cnt);
  37. #endif
  38. #if (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) && \
  39. !defined(__SANITIZE_ADDRESS__)
  40. /*
  41. * For files that are not instrumented (e.g. mm/slub.c) we
  42. * should use not instrumented version of mem* functions.
  43. */
  44. #define memcpy(dst, src, len) __memcpy(dst, src, len)
  45. #define memmove(dst, src, len) __memmove(dst, src, len)
  46. #define memset(s, c, n) __memset(s, c, n)
  47. #ifndef __NO_FORTIFY
  48. #define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
  49. #endif
  50. #endif
  51. #endif