f9micro/f9-kernel — pull request #108 by rampant1018 (2014-12-30 08:32:49+00:00)
Title: Add pthread library

Because @georgekang had implemented `pager`, `pthread` should reuse the pager function. The original pthread design is unnecessary.

Some basic pthread function have been implemented:
* pthread_create
* pthread_mutex_lock
* pthread_mutex_trylock
* pthread_mutex_unlock