todo
1)段错误分析
https://blog.csdn.net/thesre/article/details/120070792
2)把共享库(SO)加载到指定的内存地址
https://www.cnblogs.com/zhangyunlin/archive/2006/07/01/6167867.html
3)glibc代码
https://blog.csdn.net/thesre/article/details/120070792
https://www.cnblogs.com/zhangyunlin/archive/2006/07/01/6167867.html
3)glibc代码