From 18d45d9d25beceedcc3e34eea3d28f87fa200e76 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Thu, 11 Apr 2019 12:10:53 +0200
Subject: score: Add _ISR_lock_Set_name()

Add _ISR_lock_Set_name() to optimize the initialization of
zero-initialized locks.
---
 cpukit/include/rtems/score/isrlock.h | 15 +++++++++++++++
 cpukit/include/rtems/score/smplock.h | 21 ++++++++++++++++++++-
 cpukit/score/src/smp.c               |  5 +++--
 3 files changed, 38 insertions(+), 3 deletions(-)

(limited to 'cpukit')

diff --git a/cpukit/include/rtems/score/isrlock.h b/cpukit/include/rtems/score/isrlock.h
index b1aea62bf0..de85286de7 100644
--- a/cpukit/include/rtems/score/isrlock.h
+++ b/cpukit/include/rtems/score/isrlock.h
@@ -199,6 +199,21 @@ RTEMS_INLINE_ROUTINE void _ISR_lock_Context_set_level(
   #define _ISR_lock_Destroy( _lock )
 #endif
 
+/**
+ * @brief Sets the name of an ISR lock.
+ *
+ * @param[out] _lock The ISR lock control.
+ * @param _name The name for the ISR lock.  This name must be a string
+ *   persistent throughout the life time of this lock.  The name is only used
+ *   if profiling is enabled.
+ */
+#if defined( RTEMS_SMP )
+  #define _ISR_lock_Set_name( _lock, _name ) \
+    _SMP_lock_Set_name( &( _lock )->Lock, _name )
+#else
+  #define _ISR_lock_Set_name( _lock, _name )
+#endif
+
 /**
  * @brief Acquires an ISR lock.
  *
diff --git a/cpukit/include/rtems/score/smplock.h b/cpukit/include/rtems/score/smplock.h
index 1c37db465b..b1f5a6de28 100644
--- a/cpukit/include/rtems/score/smplock.h
+++ b/cpukit/include/rtems/score/smplock.h
@@ -149,7 +149,7 @@ static inline void _SMP_lock_Initialize_inline(
 #if defined(RTEMS_SMP_LOCK_DO_NOT_INLINE)
 void _SMP_lock_Initialize(
   SMP_lock_Control *lock,
-  const char *      name
+  const char       *name
 );
 #else
 #define _SMP_lock_Initialize( lock, name ) \
@@ -176,6 +176,25 @@ void _SMP_lock_Destroy( SMP_lock_Control *lock );
   _SMP_lock_Destroy_inline( lock )
 #endif
 
+/**
+ * @brief Sets the name of an SMP lock.
+ *
+ * @param[out] lock The SMP lock control.
+ * @param name The name for the SMP lock statistics.  This name must be
+ *   persistent throughout the life time of this statistics block.
+ */
+static inline void _SMP_lock_Set_name(
+  SMP_lock_Control *lock,
+  const char       *name
+)
+{
+#if defined(RTEMS_PROFILING)
+  lock->Stats.name = name;
+#else
+  (void) name;
+#endif
+}
+
 #if defined(RTEMS_DEBUG)
 static inline uint32_t _SMP_lock_Who_am_I( void )
 {
diff --git a/cpukit/score/src/smp.c b/cpukit/score/src/smp.c
index 780b33c740..822ecfd4ff 100644
--- a/cpukit/score/src/smp.c
+++ b/cpukit/score/src/smp.c
@@ -114,11 +114,12 @@ void _SMP_Handler_initialize( void )
   cpu_config_max = rtems_configuration_get_maximum_processors();
 
   for ( cpu_index = 0 ; cpu_index < cpu_config_max; ++cpu_index ) {
-    Per_CPU_Control *cpu = _Per_CPU_Get_by_index( cpu_index );
+    Per_CPU_Control *cpu;
 
-    _ISR_lock_Initialize( &cpu->Watchdog.Lock, "Watchdog" );
+    cpu = _Per_CPU_Get_by_index( cpu_index );
     _SMP_ticket_lock_Initialize( &cpu->Lock );
     _SMP_lock_Stats_initialize( &cpu->Lock_stats, "Per-CPU" );
+    _ISR_lock_Set_name( &cpu->Watchdog.Lock, "Per-CPU Watchdog" );
     _Chain_Initialize_empty( &cpu->Threads_in_need_for_help );
   }
 
-- 
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