Author :        Yunlong Zhou ,Ye Wang
  Date:           2014/6/16
  Last modified:  2015/7/31
  Copyright:      DsLab
  Licence:        GPLv2

  Structure introduce:
   apihelper.py           # A introspection module that we can use it to see a python keyword/varialbe/func/etc.
   check_result.py        # Result check script, it's working based on the sil4_config
   fileoperations.py      # File operation function module
   ftrace_func.py         # Main function here, including use tools to trace and get system calltree
   Makefile               # A lazy use, we can use "make clean" before "git commit"
   mydebug.py             # A module include a print func we can use it to print debugmessage with a switch
   not_success_test       # A file that include some tests in the posixtestsuite that may crash the system
   psx_setup.sh           # a shell script that we can use it to set posixtestsuite
   README                 # README file , doesn't need interpretation
   sil4_config.py         # Config file ,we use it to save static variables
   trace.py               # call other func to trace! the real start !