Subversion Repositories openrisc_me

extern void abort (void);
 
typedef unsigned long my_uintptr_t;
 
int check_a(my_uintptr_t tagged_ptr);
 
int __attribute__((noinline)) try_a(my_uintptr_t x)
{
  my_uintptr_t heap[2];
  my_uintptr_t *hp = heap;
 
  hp[0] = x;
  hp[1] = 0;
  return check_a((my_uintptr_t)(void*)((char*)hp + 1));
}
 
int __attribute__((noinline)) check_a(my_uintptr_t tagged_ptr)
{
  my_uintptr_t *hp = (my_uintptr_t*)(void*)((char*)tagged_ptr - 1);
 
  if (hp[0] == 42 && hp[1] == 0)
    return 0;
  return -1;
}
 
int main(void)
{
  if (try_a(42) < 0)
    abort ();
  return 0;
}