thr_pread_ptr
ret = thr_pread_ptr(ta, ta->thread_list_addr, &pt);
ret = thr_pread_ptr(ta, pt + ta->thread_off_tcb,
ret = thr_pread_ptr(ta, pt + ta->thread_off_next, &pt);
ret = thr_pread_ptr(ta, pt + ta->thread_off_tcb,
ret = thr_pread_ptr(ta, pt + ta->thread_off_next, &pt);
ret = thr_pread_ptr(ta, ta->thread_list_addr, &pt);
ret = thr_pread_ptr(ta, pt + ta->thread_off_tcb, &tcb_addr);
ret = thr_pread_ptr(ta, pt + ta->thread_off_next, &pt);
ret = thr_pread_ptr(ta, ta->thread_list_addr, &pt);
ret = thr_pread_ptr(ta, pt + ta->thread_off_next, &pt);
ret = thr_pread_ptr(ta, ta->thread_list_addr, &pt);
ret = thr_pread_ptr(ta, pt + ta->thread_off_next, &pt);
ret = thr_pread_ptr(ta, ta->thread_list_addr, &pt);
ret = thr_pread_ptr(ta, pt + ta->thread_off_next, &pt);
ret = thr_pread_ptr(ta, ta->thread_last_event_addr, &pt);
ret = thr_pread_ptr(ta, ta->thread_last_event_addr, &pt_temp);
int thr_pread_ptr(const struct td_thragent *, psaddr_t, psaddr_t *);