score: Add and use _Thread_Dispatch_direct()

This function is useful for operations which synchronously block, e.g.
self restart, self deletion, yield, sleep.  It helps to detect if these
operations are called in the wrong context.  Since the thread dispatch
necessary indicator is not used, this is more robust in some SMP
situations.

Update #2751.

1 files changed, 16 insertions, 0 deletions

diff --git a/cpukit/score/src/threaddispatch.c b/cpukit/score/src/threaddispatch.c
index 36d2910ef2..c96299cb59 100644
--- a/cpukit/score/src/threaddispatch.c
+++ b/cpukit/score/src/threaddispatch.c
@@ -233,3 +233,19 @@ void _Thread_Dispatch( void )
     _ISR_Local_enable( level );
   }
 }
+
+void _Thread_Dispatch_direct( Per_CPU_Control *cpu_self )
+{
+  ISR_Level level;
+
+  if ( cpu_self->thread_dispatch_disable_level != 1 ) {
+    _Terminate(
+      INTERNAL_ERROR_CORE,
+      0,
+      INTERNAL_ERROR_BAD_THREAD_DISPATCH_DISABLE_LEVEL
+    );
+  }
+
+  _ISR_Local_disable( level );
+  _Thread_Do_dispatch( cpu_self, level );
+}