poison_mem
poison_mem(cp, allocsize);
poison_mem(freep, sizeof(*freep));
poison_mem(addr, size);
poison_mem(ci + 1, pp->pr_size - sizeof(*ci));
poison_mem(pi + 1, pp->pr_size - sizeof(*pi));
poison_mem(pi + 1, pp->pr_size - sizeof(*pi));
void poison_mem(void *, size_t);