http://blog.csdn.net/y461517142/article/details/26269529
http://calvin1978.blogcn.com/articles/btrace1.html
http://www.importnew.com/26495.html
http://zhongl.iteye.com/blog/1562235
http://github.com/btraceio/btrace
https://github.com/btraceio/btrace/tree/master/samples