strace

strace 命令是一种强大的工具，它能够显示所有由用户空间程序发出的系统调用。

strace is a system call tracer, i.e. a debugging tool which prints out a trace of all the system calls made by a another process/program.

http://sourceforge.net/projects/strace/

http://blog.zhangjianfeng.com/article/510

http://www.ibm.com/developerworks/cn/linux/l-tsl/index.html