USER_DATA
sql_insert_caller_info(expr, USER_DATA, i, "$", str);
sql_insert_caller_info(call, USER_DATA, param, printed_name, buf);
func_gets_user_data ? USER_DATA_SET : USER_DATA,
func_gets_user_data ? USER_DATA_SET : USER_DATA,
func_gets_user_data ? USER_DATA_SET : USER_DATA,
USER_DATA_SET : USER_DATA,
select_caller_info_hook(set_param_user_data, USER_DATA);
select_return_states_hook(USER_DATA, &returns_param_user_data);