Optional POSIX Spinlock initialization

Update #2408.

cpukit/posix/include/rtems/posix/spinlockimpl.h

@@ -34,15 +34,7 @@ extern "C" {
  * this class of objects.
  */
 
-POSIX_EXTERN Objects_Information  _POSIX_Spinlock_Information;
-
-/**
- * @brief POSIX spinlock manager initialization.
- *
- * This routine performs the initialization necessary for this manager.
- */
-
-void _POSIX_Spinlock_Manager_initialization(void);
+extern Objects_Information _POSIX_Spinlock_Information;
 
 /**
  * @brief Translate core spinlock status code.

cpukit/posix/src/pspin.c

@@ -21,12 +21,15 @@
 
 #include <rtems/system.h>
 #include <rtems/config.h>
+#include <rtems/sysinit.h>
 #include <rtems/posix/spinlockimpl.h>
 
+Objects_Information _POSIX_Spinlock_Information;
+
 /**
  *  @brief _POSIX_Spinlock_Manager_initialization
  */
-void _POSIX_Spinlock_Manager_initialization(void)
+static void _POSIX_Spinlock_Manager_initialization(void)
 {
   _Objects_Initialize_information(
     &_POSIX_Spinlock_Information,    /* object information table */
@@ -44,3 +47,9 @@ void _POSIX_Spinlock_Manager_initialization(void)
 #endif
   );
 }
+
+RTEMS_SYSINIT_ITEM(
+  _POSIX_Spinlock_Manager_initialization,
+  RTEMS_SYSINIT_POSIX_SPINLOCK,
+  RTEMS_SYSINIT_ORDER_MIDDLE
+);

cpukit/sapi/src/posixapi.c

@@ -34,7 +34,6 @@
 #include <rtems/posix/config.h>
 #include <rtems/posix/priorityimpl.h>
 #include <rtems/posix/psignalimpl.h>
-#include <rtems/posix/spinlockimpl.h>
 #endif
 
 void _POSIX_Fatal_error( POSIX_Fatal_domain domain, int eno )
@@ -54,8 +53,4 @@ void _POSIX_API_Initialize(void)
    */
 
   _POSIX_Key_Manager_initialization();
-
-  #ifdef RTEMS_POSIX_API
-    _POSIX_Spinlock_Manager_initialization();
-  #endif
 }

cpukit/score/include/rtems/sysinit.h

@@ -51,6 +51,7 @@ extern "C" {
 #define RTEMS_SYSINIT_POSIX_TIMER                000366
 #define RTEMS_SYSINIT_POSIX_BARRIER              000367
 #define RTEMS_SYSINIT_POSIX_RWLOCK               000368
+#define RTEMS_SYSINIT_POSIX_SPINLOCK             000369
 #define RTEMS_SYSINIT_POSIX_CLEANUP              00036a
 #define RTEMS_SYSINIT_IDLE_THREADS               000380
 #define RTEMS_SYSINIT_BSP_LIBC                   000400

testsuites/sptests/spsysinit01/init.c

@@ -36,6 +36,7 @@
 #include <rtems/posix/pthreadimpl.h>
 #include <rtems/posix/rwlockimpl.h>
 #include <rtems/posix/semaphoreimpl.h>
+#include <rtems/posix/spinlockimpl.h>
 #include <rtems/posix/timerimpl.h>
 #endif /* RTEMS_POSIX_API */
 #include <rtems/rtems/barrierimpl.h>
@@ -107,6 +108,8 @@ typedef enum {
   POSIX_BARRIER_POST,
   POSIX_RWLOCK_PRE,
   POSIX_RWLOCK_POST,
+  POSIX_SPINLOCK_PRE,
+  POSIX_SPINLOCK_POST,
   POSIX_CLEANUP_PRE,
   POSIX_CLEANUP_POST,
 #endif /* RTEMS_POSIX_API */
@@ -467,6 +470,18 @@ LAST(RTEMS_SYSINIT_POSIX_RWLOCK)
   next_step(POSIX_RWLOCK_POST);
 }
 
+FIRST(RTEMS_SYSINIT_POSIX_SPINLOCK)
+{
+  assert(_POSIX_Spinlock_Information.maximum == 0);
+  next_step(POSIX_SPINLOCK_PRE);
+}
+
+LAST(RTEMS_SYSINIT_POSIX_SPINLOCK)
+{
+  assert(_POSIX_Spinlock_Information.maximum != 0);
+  next_step(POSIX_SPINLOCK_POST);
+}
+
 static size_t user_extensions_pre_posix_cleanup;
 
 FIRST(RTEMS_SYSINIT_POSIX_CLEANUP)
@@ -608,6 +623,8 @@ static void Init(rtems_task_argument arg)
 
 #define CONFIGURE_MAXIMUM_POSIX_SEMAPHORES 1
 
+#define CONFIGURE_MAXIMUM_POSIX_SPINLOCKS 1
+
 #define CONFIGURE_MAXIMUM_POSIX_TIMERS 1
 
 #define CONFIGURE_MAXIMUM_POSIX_THREADS 1