title: List of and documentation for system calls for XNU kernel in OSX
body: <p>I'm trying to figure out how to get a list of and documentation for the system calls available in the XNU kernel in OSX.  I've googled around quite a bit, but haven't been able to find anything of use.  As I understand the calling conventions match BSD, is that correct?</p>
  
  <p>Thanks</p>