File: 20020706-2.c

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gcc-arm-none-eabi 15%3A7-2018-q2-6
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// Contributed by Alexandre Oliva <aoliva@redhat.com>
// From Red Hat case 106165.

typedef unsigned short (FUNC_P) (void *, unsigned char *, unsigned short);

void crashIt(int id, FUNC_P *func, unsigned char *funcparm)
{
  unsigned char buff[5], reverse[4];
  unsigned char *bp = buff;
  unsigned char *rp = reverse;
  unsigned short int count = 0;
  unsigned short cnt;
  while (id > 0)
    {
      *rp++ = (unsigned char) (id & 0x7F);
      id >>= 7;
      count++;
    }
  cnt = count + 1;
  while ((count--) > 1)
    {
      *bp++ = (unsigned char)(*(--rp) | 0x80);
    }
  *bp++ = *(--rp);
  (void)(*func)(funcparm, buff, cnt);
}