If not, the relocatable linking loader is called to load the desired routine into memory and to update the program's address tables to reflect this change. 如果被调用的例程没有被加载,那么重定位的加载器就开始对这个被调用的例程进行加载,并且改动更新进程地址表来表示这处改动。
A relocatable module is one in which every reference to locations within a module are tagged so that they may be updated with the new address once loaded into memory. 可重定位模块是这样的,模块内每一个对地址的引用都作一个标记,等模块加载到内存里再用新地址替换这些标记。