2010-06-28 Joel Sherrill <joel.sherrill@oarcorp.com>

	PR 1573/cpukit
	* configure.ac, posix/src/killinfo.c,
	posix/src/psignalclearprocesssignals.c,
	posix/src/psignalsetprocesssignals.c,
	posix/src/psignalunblockthread.c, posix/src/pthreadcreate.c,
	posix/src/pthreadkill.c, posix/src/pthreadsigmask.c,
	rtems/src/signalsend.c, rtems/src/taskmode.c, score/Makefile.am,
	score/preinstall.am, score/include/rtems/system.h,
	score/include/rtems/score/context.h, score/include/rtems/score/isr.h,
	score/include/rtems/score/thread.h, score/src/isr.c,
	score/src/isrthreaddispatch.c, score/src/thread.c,
	score/src/threaddispatch.c, score/src/threadloadenv.c: Add a per cpu
	data structure which contains the information required by RTEMS for
	each CPU core. This encapsulates information such as thread
	executing, heir, idle and dispatch needed.
	* score/include/rtems/score/percpu.h, score/src/percpu.c: New files.

1 files changed, 3 insertions, 10 deletions

diff --git a/cpukit/score/include/rtems/score/context.h b/cpukit/score/include/rtems/score/context.h
index 862cf48fcd..8c1a1021e0 100644
--- a/cpukit/score/include/rtems/score/context.h
+++ b/cpukit/score/include/rtems/score/context.h
@@ -23,6 +23,9 @@
  *
  *  This handler encapsulates functionality which abstracts thread context
  *  management in a portable manner.
+ *
+ *  The context switch needed variable is contained in the per cpu
+ *  data structure.
  */
 /**@{*/
 
@@ -41,16 +44,6 @@ extern "C" {
 #define CONTEXT_FP_SIZE CPU_CONTEXT_FP_SIZE
 
 /**
- *  @brief Is Context Switch Needed?
- *
- *  This variable is set to true when a reschedule operation
- *  has determined that the processor should be taken away from the
- *  currently executing thread and given to the heir thread.
- */
-
-SCORE_EXTERN volatile bool _Context_Switch_necessary;
-
-/**
  *  @brief Initialize Context Area
  *  This routine initializes @a _the_context such that the stack
  *  pointer, interrupt level, and entry point are correct for the