hotspot/src/os/bsd/vm/osThread_bsd.hpp
2013-10-03 dsamersoff 8022616: u4 should not be used as a type for thread_id
2013-06-10 sla 8005849: JEP 167: Event-Based JVM Tracing
2013-02-08 sla 8006423: SA: NullPointerException in sun.jvm.hotspot.debugger.bsd.BsdThread.getContext(BsdThread.java:67)
2012-10-29 sla 8001619: Remove usage of _ALLBSD_SOURCE in bsd files
2012-05-22 rbackman 7161732: Improve handling of thread_id in OSThread
2012-03-06 rbackman 7160570: Intrinsification support for tracing framework
2012-02-19 sla 7132070: Use a mach_port_t as the OSThread thread_id rather than pthread_t on BSD/OSX
2011-09-25 never 7089790: integrate bsd-port changes
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