I have download the upstart source code from ubuntu http://packages.ubuntu.com/, (hardy)
but i have't found the selinux relevant code in it. I am so confused that how the /sbin/init invoke
the "load_policy" function during system initialization?
2008/12/27 domg472 g472 <domg472@xxxxxxxxx>
Most if not everything should be upstream. so if you would want to edit "cp" then you would get the source code for coreutils on the project site for coreutils.
selinux userland tools source is here:
http://userspace.selinuxproject.org/trac/browser/policycoreutils