Reference
Anatomy of a Program in Memory
http://duartes.org/gustavo/blog/post/anatomy-of-a-program-in-memory/
Linux x86 Program Start Up
http://dbp-consulting.com/tutorials/debugging/linuxProgramStartup.html
[glibc] CSU (C start up) routines
http://egloos.zum.com/studyfoss/v/5283161