Gdb
From charlesreid1
References
http://www.ibm.com/developerworks/aix/library/au-gdb.html?ca=dgr-lnxw16GDB2
http://www.ibm.com/developerworks/aix/library/au-unix-strace.html
http://stackoverflow.com/questions/1585308/debugging-disassembled-libraries-with-gdb