LXR uboot/arch/arm/include/asm/string.h

   1#ifndef __ASM_ARM_STRING_H
   2#define __ASM_ARM_STRING_H
   3
   4#include <config.h>
   5
   6/*
   7 * We don't do inline string functions, since the
   8 * optimised inline asm versions are not small.
   9 */
  10
  11#undef __HAVE_ARCH_STRRCHR
  12extern char * strrchr(const char * s, int c);
  13
  14#undef __HAVE_ARCH_STRCHR
  15extern char * strchr(const char * s, int c);
  16
  17#if CONFIG_IS_ENABLED(USE_ARCH_MEMCPY)
  18#define __HAVE_ARCH_MEMCPY
  19#endif
  20extern void * memcpy(void *, const void *, __kernel_size_t);
  21
  22#if CONFIG_IS_ENABLED(USE_ARCH_MEMMOVE)
  23#define __HAVE_ARCH_MEMMOVE
  24#else
  25#undef __HAVE_ARCH_MEMMOVE
  26#endif
  27extern void * memmove(void *, const void *, __kernel_size_t);
  28
  29#undef __HAVE_ARCH_MEMCHR
  30extern void * memchr(const void *, int, __kernel_size_t);
  31
  32#undef __HAVE_ARCH_MEMZERO
  33#if CONFIG_IS_ENABLED(USE_ARCH_MEMSET)
  34#define __HAVE_ARCH_MEMSET
  35#endif
  36extern void * memset(void *, int, __kernel_size_t);
  37
  38#if 0
  39extern void __memzero(void *ptr, __kernel_size_t n);
  40
  41#define memset(p,v,n)                                                   \
  42        ({                                                              \
  43                if ((n) != 0) {                                         \
  44                        if (__builtin_constant_p((v)) && (v) == 0)      \
  45                                __memzero((p),(n));                     \
  46                        else                                            \
  47                                memset((p),(v),(n));                    \
  48                }                                                       \
  49                (p);                                                    \
  50        })
  51
  52#define memzero(p,n) ({ if ((n) != 0) __memzero((p),(n)); (p); })
  53#else
  54extern void memzero(void *ptr, __kernel_size_t n);
  55#endif
  56
  57#endif
  58