get_mdb
mdb_printf("%p\n", get_mdb()->m_in);
mdb_printf("%p\n", get_mdb()->m_out);
mdb_printf("%p\n", get_mdb()->m_err);
addr = (uintptr_t)get_mdb()->m_target;
wsp->walk_addr = (uintptr_t)get_mdb()->m_flist.ml_prev;
wsp->walk_addr = (uintptr_t)get_mdb()->m_target;