string.h 1.2 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253
  1. #ifndef __ASM_ARM_STRING_H
  2. #define __ASM_ARM_STRING_H
  3. #include <config.h>
  4. /*
  5. * We don't do inline string functions, since the
  6. * optimised inline asm versions are not small.
  7. */
  8. #undef __HAVE_ARCH_STRRCHR
  9. extern char * strrchr(const char * s, int c);
  10. #undef __HAVE_ARCH_STRCHR
  11. extern char * strchr(const char * s, int c);
  12. #if CONFIG_IS_ENABLED(USE_ARCH_MEMCPY)
  13. #define __HAVE_ARCH_MEMCPY
  14. #endif
  15. extern void * memcpy(void *, const void *, __kernel_size_t);
  16. #undef __HAVE_ARCH_MEMMOVE
  17. extern void * memmove(void *, const void *, __kernel_size_t);
  18. #undef __HAVE_ARCH_MEMCHR
  19. extern void * memchr(const void *, int, __kernel_size_t);
  20. #undef __HAVE_ARCH_MEMZERO
  21. #if CONFIG_IS_ENABLED(USE_ARCH_MEMSET)
  22. #define __HAVE_ARCH_MEMSET
  23. #endif
  24. extern void * memset(void *, int, __kernel_size_t);
  25. #if 0
  26. extern void __memzero(void *ptr, __kernel_size_t n);
  27. #define memset(p,v,n) \
  28. ({ \
  29. if ((n) != 0) { \
  30. if (__builtin_constant_p((v)) && (v) == 0) \
  31. __memzero((p),(n)); \
  32. else \
  33. memset((p),(v),(n)); \
  34. } \
  35. (p); \
  36. })
  37. #define memzero(p,n) ({ if ((n) != 0) __memzero((p),(n)); (p); })
  38. #else
  39. extern void memzero(void *ptr, __kernel_size_t n);
  40. #endif
  41. #endif