[PATCH 3/8] score: Add potpourri lock statistics

[Sebastian Huber]

These SMP lock statistics are used for all lock objects that lack a
storage space for the statistics.  Examples are lock objects used in
external libraries which are independent of the actual RTEMS build
configuration.
---
 cpukit/score/include/rtems/score/thread.h | 12 ++++++++++++
 cpukit/score/src/threadinitialize.c       |  1 +
 cpukit/score/src/threadrestart.c          |  1 +
 3 files changed, 14 insertions(+)

diff --git a/cpukit/score/include/rtems/score/thread.h b/cpukit/score/include/rtems/score/thread.h
index 157acfa..ac908e2 100644
--- a/cpukit/score/include/rtems/score/thread.h
+++ b/cpukit/score/include/rtems/score/thread.h
@@ -733,6 +733,18 @@ struct _Thread_Control {
   Thread_Lock_control Lock;
 #endif
 
+#if defined(RTEMS_SMP) && defined(RTEMS_PROFILING)
+  /**
+   * @brief Potpourri lock statistics.
+   *
+   * These SMP lock statistics are used for all lock objects that lack a
+   * storage space for the statistics.  Examples are lock objects used in
+   * external libraries which are independent of the actual RTEMS build
+   * configuration.
+   */
+  SMP_lock_Stats Potpourri_stats;
+#endif
+
 #ifdef __RTEMS_STRICT_ORDER_MUTEX__
   /** This field is the head of queue of priority inheritance mutex
    *  held by the thread.
diff --git a/cpukit/score/src/threadinitialize.c b/cpukit/score/src/threadinitialize.c
index 9019e1f..7452c93 100644
--- a/cpukit/score/src/threadinitialize.c
+++ b/cpukit/score/src/threadinitialize.c
@@ -205,6 +205,7 @@ bool _Thread_Initialize(
   _CPU_Context_Set_is_executing( &the_thread->Registers, false );
   the_thread->Lock.current = &the_thread->Lock.Default;
   _ISR_lock_Initialize( &the_thread->Lock.Default, "Thread Lock Default");
+  _SMP_lock_Stats_initialize( &the_thread->Potpourri_stats, "Thread Potpourri" );
   _Atomic_Init_uint(&the_thread->Lock.generation, 0);
 #endif
 
diff --git a/cpukit/score/src/threadrestart.c b/cpukit/score/src/threadrestart.c
index abd809d..5d80beb 100644
--- a/cpukit/score/src/threadrestart.c
+++ b/cpukit/score/src/threadrestart.c
@@ -130,6 +130,7 @@ static void _Thread_Free( Thread_Control *the_thread )
 
 #if defined(RTEMS_SMP)
   _ISR_lock_Destroy( &the_thread->Lock.Default );
+  _SMP_lock_Stats_destroy( &the_thread->Potpourri_stats );
 #endif
 
   _Objects_Free( &information->Objects, &the_thread->Object );
-- 
1.8.4.5