score: Conditionally enable thread resource count

Maintain the thread resource count only in debug configurations.  This
is a performance optimization for non-debug configurations.

2 files changed, 18 insertions, 0 deletions

diff --git a/cpukit/score/include/rtems/score/thread.h b/cpukit/score/include/rtems/score/thread.h
index ff7f13be55..7711f706f3 100644
--- a/cpukit/score/include/rtems/score/thread.h
+++ b/cpukit/score/include/rtems/score/thread.h
@@ -83,6 +83,10 @@ extern "C" {
   #define RTEMS_SCORE_THREAD_ENABLE_USER_PROVIDED_STACK_VIA_API
 #endif
 
+#if defined(RTEMS_DEBUG)
+#define RTEMS_SCORE_THREAD_ENABLE_RESOURCE_COUNT
+#endif
+
 /*
  * Only provided for backward compatiblity to not break application
  * configurations.
@@ -492,8 +496,10 @@ typedef struct {
    */
   Priority_Node            Real_priority;
 
+#if defined(RTEMS_SCORE_THREAD_ENABLE_RESOURCE_COUNT)
   /** This field is the number of mutexes currently held by this proxy. */
   uint32_t                 resource_count;
+#endif
 
   /**
    * @brief Scheduler related control.
@@ -716,8 +722,10 @@ struct _Thread_Control {
    */
   Priority_Node            Real_priority;
 
+#if defined(RTEMS_SCORE_THREAD_ENABLE_RESOURCE_COUNT)
   /** This field is the number of mutexes currently held by this thread. */
   uint32_t                 resource_count;
+#endif
 
   /**
    * @brief Scheduler related control.
diff --git a/cpukit/score/include/rtems/score/threadimpl.h b/cpukit/score/include/rtems/score/threadimpl.h
index 37127fbabd..61694461b4 100644
--- a/cpukit/score/include/rtems/score/threadimpl.h
+++ b/cpukit/score/include/rtems/score/threadimpl.h
@@ -977,16 +977,25 @@ RTEMS_INLINE_ROUTINE void _Thread_Resource_count_increment(
   Thread_Control *the_thread
 )
 {
+#if defined(RTEMS_SCORE_THREAD_ENABLE_RESOURCE_COUNT)
   ++the_thread->resource_count;
+#else
+  (void) the_thread;
+#endif
 }
 
 RTEMS_INLINE_ROUTINE void _Thread_Resource_count_decrement(
   Thread_Control *the_thread
 )
 {
+#if defined(RTEMS_SCORE_THREAD_ENABLE_RESOURCE_COUNT)
   --the_thread->resource_count;
+#else
+  (void) the_thread;
+#endif
 }
 
+#if defined(RTEMS_SCORE_THREAD_ENABLE_RESOURCE_COUNT)
 /**
  * @brief Returns true if the thread owns resources, and false otherwise.
  *
@@ -1001,6 +1010,7 @@ RTEMS_INLINE_ROUTINE bool _Thread_Owns_resources(
 {
   return the_thread->resource_count != 0;
 }
+#endif
 
 #if defined(RTEMS_SMP)
 RTEMS_INLINE_ROUTINE void _Thread_Scheduler_cancel_need_for_help(