Lock Profiling and Lock Order Verification status report #3

[Greg Miller]

Accomplishments for the week:

* Implemented the stat collection stub functions for mutexes.

I'm currently in the process of implementing the API to allow programs
to retrieve profile data on the fly. Goals for the week:

* Finish stat retrieval
* Test and debug mutex profiling
* Implement stat reset and profile enable/disable calls
* Port the code from mutexes to rwlocks and spinlocks

Debugging is (as always) the most unpredictable item on the list. The
rest should be quick and straightforward.