cu_walk_functions_at
int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
cu_walk_functions_at(cudie, addr, libdw_a2l_cb, &args);
ret = cu_walk_functions_at(&pf->cu_die, pf->addr, find_best_scope_cb,
cu_walk_functions_at(&pf->cu_die, pf->addr,