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.

7 files changed, 2 insertions, 21 deletions

diff --git a/cpukit/posix/src/killinfo.c b/cpukit/posix/src/killinfo.c
index c02f7807e6..2ae5857a6f 100644
--- a/cpukit/posix/src/killinfo.c
+++ b/cpukit/posix/src/killinfo.c
@@ -314,8 +314,6 @@ int killinfo(
    */
 process_it:
 
-  the_thread->do_post_task_switch_extension = true;
-
   /*
    *  Returns true if the signal was synchronously given to a thread
    *  blocked waiting for the signal.
diff --git a/cpukit/posix/src/psignalclearprocesssignals.c b/cpukit/posix/src/psignalclearprocesssignals.c
index a601fa2406..b11ae0ebc2 100644
--- a/cpukit/posix/src/psignalclearprocesssignals.c
+++ b/cpukit/posix/src/psignalclearprocesssignals.c
@@ -53,8 +53,6 @@ void _POSIX_signals_Clear_process_signals(
     }
     if ( clear_signal ) {
       _POSIX_signals_Pending &= ~mask;
-      if ( !_POSIX_signals_Pending )
-	_Thread_Do_post_task_switch_extension--;
     }
   _ISR_Enable( level );
 }
diff --git a/cpukit/posix/src/psignalsetprocesssignals.c b/cpukit/posix/src/psignalsetprocesssignals.c
index 25209f3c4d..cb4ad8b241 100644
--- a/cpukit/posix/src/psignalsetprocesssignals.c
+++ b/cpukit/posix/src/psignalsetprocesssignals.c
@@ -41,8 +41,6 @@ void _POSIX_signals_Set_process_signals(
   ISR_Level  level;
 
   _ISR_Disable( level );
-    if ( !_POSIX_signals_Pending )
-      _Thread_Do_post_task_switch_extension++;
     _POSIX_signals_Pending |= mask;
   _ISR_Enable( level );
 }
diff --git a/cpukit/posix/src/psignalunblockthread.c b/cpukit/posix/src/psignalunblockthread.c
index fdba79a00c..912ac34694 100644
--- a/cpukit/posix/src/psignalunblockthread.c
+++ b/cpukit/posix/src/psignalunblockthread.c
@@ -98,8 +98,6 @@ bool _POSIX_signals_Unblock_thread(
      *    + Any other combination, do nothing.
      */
 
-    the_thread->do_post_task_switch_extension = true;
-
     if ( the_thread->current_state & STATES_INTERRUPTIBLE_BY_SIGNAL ) {
       the_thread->Wait.return_code = EINTR;
       /*
@@ -120,7 +118,7 @@ bool _POSIX_signals_Unblock_thread(
 	  }
     } else if ( the_thread->current_state == STATES_READY ) {
       if ( _ISR_Is_in_progress() && _Thread_Is_executing( the_thread ) )
-	_ISR_Signals_to_thread_executing = true;
+	_Context_Switch_necessary = true;
     }
   }
   return false;
diff --git a/cpukit/posix/src/pthreadcreate.c b/cpukit/posix/src/pthreadcreate.c
index c5ca86d52e..d7f08a5527 100644
--- a/cpukit/posix/src/pthreadcreate.c
+++ b/cpukit/posix/src/pthreadcreate.c
@@ -191,14 +191,6 @@ int pthread_create(
   api->schedparam  = schedparam;
 
   /*
-   *  This insures we evaluate the process-wide signals pending when we
-   *  first run.
-   *
-   *  NOTE:  Since the thread starts with all unblocked, this is necessary.
-   */
-  the_thread->do_post_task_switch_extension = true;
-
-  /*
    *  POSIX threads are allocated and started in one operation.
    */
   status = _Thread_Start(
diff --git a/cpukit/posix/src/pthreadkill.c b/cpukit/posix/src/pthreadkill.c
index 9b6bd408e0..6d96067049 100644
--- a/cpukit/posix/src/pthreadkill.c
+++ b/cpukit/posix/src/pthreadkill.c
@@ -63,10 +63,8 @@ int pthread_kill(
 
         (void) _POSIX_signals_Unblock_thread( the_thread, sig, NULL );
 
-        the_thread->do_post_task_switch_extension = true;
-
         if ( _ISR_Is_in_progress() && _Thread_Is_executing( the_thread ) )
-          _ISR_Signals_to_thread_executing = true;
+	  _Context_Switch_necessary = true;
       }
       _Thread_Enable_dispatch();
       return 0;
diff --git a/cpukit/posix/src/pthreadsigmask.c b/cpukit/posix/src/pthreadsigmask.c
index 2fdc720282..c97e75a89e 100644
--- a/cpukit/posix/src/pthreadsigmask.c
+++ b/cpukit/posix/src/pthreadsigmask.c
@@ -65,7 +65,6 @@ int pthread_sigmask(
 
   if ( ~api->signals_blocked &
        (api->signals_pending | _POSIX_signals_Pending) ) {
-    _Thread_Executing->do_post_task_switch_extension = true;
     _Thread_Dispatch();
   }