1  extern void abort (void);
       2  extern int inside_main;
       3  typedef __SIZE_TYPE__ size_t;
       4  
       5  #define TEST_ABORT if (inside_main) abort()
       6  
       7  /* LTO code is at the present to able to track that asm alias my_bcopy on builtin
       8     actually refers to this function.  See PR47181. */
       9  __attribute__ ((used))
      10  void *
      11  my_memcpy (void *d, const void *s, size_t n)
      12  {
      13    char *dst = (char *) d;
      14    const char *src = (const char *) s;
      15    while (n--)
      16      *dst++ = *src++;
      17    return (char *) d;
      18  }
      19  
      20  /* LTO code is at the present to able to track that asm alias my_bcopy on builtin
      21     actually refers to this function.  See PR47181. */
      22  __attribute__ ((used))
      23  void
      24  my_bcopy (const void *s, void *d, size_t n)
      25  {
      26    char *dst = (char *) d;
      27    const char *src = (const char *) s;
      28    if (src >= dst)
      29      while (n--)
      30        *dst++ = *src++;
      31    else
      32      {
      33        dst += n;
      34        src += n;
      35        while (n--)
      36          *--dst = *--src;
      37      }
      38  }
      39  
      40  __attribute__ ((used))
      41  void *
      42  my_memmove (void *d, const void *s, size_t n)
      43  {
      44    char *dst = (char *) d;
      45    const char *src = (const char *) s;
      46    if (src >= dst)
      47      while (n--)
      48        *dst++ = *src++;
      49    else
      50      {
      51        dst += n;
      52        src += n;
      53        while (n--)
      54  	*--dst = *--src;
      55      }
      56  
      57    return d;
      58  }
      59  
      60  /* LTO code is at the present to able to track that asm alias my_bcopy on builtin
      61     actually refers to this function.  See PR47181. */
      62  __attribute__ ((used))
      63  void *
      64  my_memset (void *d, int c, size_t n)
      65  {
      66    char *dst = (char *) d;
      67    while (n--)
      68      *dst++ = c;
      69    return (char *) d;
      70  }
      71  
      72  /* LTO code is at the present to able to track that asm alias my_bcopy on builtin
      73     actually refers to this function.  See PR47181. */
      74  __attribute__ ((used))
      75  void
      76  my_bzero (void *d, size_t n)
      77  {
      78    char *dst = (char *) d;
      79    while (n--)
      80      *dst++ = '\0';
      81  }
      82  
      83  void *
      84  memcpy (void *d, const void *s, size_t n)
      85  {
      86    void *result = my_memcpy (d, s, n);
      87    TEST_ABORT;
      88    return result;
      89  }
      90  
      91  void
      92  bcopy (const void *s, void *d, size_t n)
      93  {
      94    my_bcopy (s, d, n);
      95    TEST_ABORT;
      96  }
      97  
      98  void *
      99  memset (void *d, int c, size_t n)
     100  {
     101    void *result = my_memset (d, c, n);
     102    TEST_ABORT;
     103    return result;
     104  }
     105  
     106  void
     107  bzero (void *d, size_t n)
     108  {
     109    my_bzero (d, n);
     110    TEST_ABORT;
     111  }
     112  
     113  #ifdef __vxworks
     114  /* The RTP C library uses bfill, which is defined in the same file as
     115     bzero and bcopy.  */
     116  #include "lib/bfill.c"
     117  #endif