http://blog.techveda.org/howsourcedebuggerswork/
http://bbs.sjtu.edu.cn/bbscon,board,Security,file,M.1134227822.A.html
http://blog.csdn.net/warriorpaw/article/details/8660704
http://blog.csdn.net/rrerre/article/details/6843539
http://blog.csdn.net/rrerre/article/details/6639484
http://dwarfstd.org/doc/Dwarf3.pdf
dwarf2解析 http://hi.baidu.com/tag/dwarf2%E8%A7%A3%E6%9E%90/feeds