Optional POSIX Semaphore initialization

Update #2408.

cpukit/posix/include/rtems/posix/semaphoreimpl.h

@@ -33,7 +33,7 @@ extern "C" {
  *  This defines the information control block used to manage
  *  this class of objects.
  */
-POSIX_EXTERN Objects_Information  _POSIX_Semaphore_Information;
+extern Objects_Information _POSIX_Semaphore_Information;
 
 /**
  *  This defines the mapping from Score status codes to POSIX return codes.
@@ -41,13 +41,6 @@ POSIX_EXTERN Objects_Information  _POSIX_Semaphore_Information;
 extern const int
   _POSIX_Semaphore_Return_codes[CORE_SEMAPHORE_STATUS_LAST + 1];
 
-/**
- *  @brief POSIX Semaphore Manager Initialization
- *
- *  This routine performs the initialization necessary for this manager.
- */
-void _POSIX_Semaphore_Manager_initialization(void);
-
 RTEMS_INLINE_ROUTINE POSIX_Semaphore_Control *
   _POSIX_Semaphore_Allocate_unprotected( void )
 {

cpukit/posix/src/semaphore.c

@@ -28,9 +28,12 @@
 
 #include <rtems/system.h>
 #include <rtems/config.h>
+#include <rtems/sysinit.h>
 #include <rtems/posix/semaphoreimpl.h>
 #include <rtems/seterr.h>
 
+Objects_Information _POSIX_Semaphore_Information;
+
 /*
  *  _POSIX_Semaphore_Manager_initialization
  *
@@ -41,7 +44,7 @@
  *  Output parameters:  NONE
  */
 
-void _POSIX_Semaphore_Manager_initialization(void)
+static void _POSIX_Semaphore_Manager_initialization(void)
 {
   _Objects_Initialize_information(
     &_POSIX_Semaphore_Information, /* object information table */
@@ -60,3 +63,9 @@ void _POSIX_Semaphore_Manager_initialization(void)
 #endif
   );
 }
+
+RTEMS_SYSINIT_ITEM(
+  _POSIX_Semaphore_Manager_initialization,
+  RTEMS_SYSINIT_POSIX_SEMAPHORE,
+  RTEMS_SYSINIT_ORDER_MIDDLE
+);

cpukit/sapi/src/posixapi.c

@@ -37,7 +37,6 @@
 #include <rtems/posix/psignalimpl.h>
 #include <rtems/posix/rwlockimpl.h>
 #include <rtems/posix/timerimpl.h>
-#include <rtems/posix/semaphoreimpl.h>
 #include <rtems/posix/spinlockimpl.h>
 #endif
 
@@ -60,7 +59,6 @@ void _POSIX_API_Initialize(void)
   _POSIX_Key_Manager_initialization();
 
   #ifdef RTEMS_POSIX_API
-    _POSIX_Semaphore_Manager_initialization();
     _POSIX_Timer_Manager_initialization();
     _POSIX_Barrier_Manager_initialization();
     _POSIX_RWLock_Manager_initialization();

cpukit/score/include/rtems/sysinit.h

@@ -47,6 +47,7 @@ extern "C" {
 #define RTEMS_SYSINIT_POSIX_CONDITION_VARIABLE   000362
 #define RTEMS_SYSINIT_POSIX_MUTEX                000363
 #define RTEMS_SYSINIT_POSIX_MESSAGE_QUEUE        000364
+#define RTEMS_SYSINIT_POSIX_SEMAPHORE            000365
 #define RTEMS_SYSINIT_POSIX_CLEANUP              00036a
 #define RTEMS_SYSINIT_IDLE_THREADS               000380
 #define RTEMS_SYSINIT_BSP_LIBC                   000400

testsuites/sptests/spsysinit01/init.c

@@ -33,6 +33,7 @@
 #include <rtems/posix/muteximpl.h>
 #include <rtems/posix/psignalimpl.h>
 #include <rtems/posix/pthreadimpl.h>
+#include <rtems/posix/semaphoreimpl.h>
 #endif /* RTEMS_POSIX_API */
 #include <rtems/rtems/barrierimpl.h>
 #include <rtems/rtems/dpmemimpl.h>
@@ -95,6 +96,8 @@ typedef enum {
   POSIX_MUTEX_POST,
   POSIX_MESSAGE_QUEUE_PRE,
   POSIX_MESSAGE_QUEUE_POST,
+  POSIX_SEMAPHORE_PRE,
+  POSIX_SEMAPHORE_POST,
   POSIX_CLEANUP_PRE,
   POSIX_CLEANUP_POST,
 #endif /* RTEMS_POSIX_API */
@@ -407,6 +410,18 @@ LAST(RTEMS_SYSINIT_POSIX_MESSAGE_QUEUE)
   next_step(POSIX_MESSAGE_QUEUE_POST);
 }
 
+FIRST(RTEMS_SYSINIT_POSIX_SEMAPHORE)
+{
+  assert(_POSIX_Semaphore_Information.maximum == 0);
+  next_step(POSIX_SEMAPHORE_PRE);
+}
+
+LAST(RTEMS_SYSINIT_POSIX_SEMAPHORE)
+{
+  assert(_POSIX_Semaphore_Information.maximum != 0);
+  next_step(POSIX_SEMAPHORE_POST);
+}
+
 static size_t user_extensions_pre_posix_cleanup;
 
 FIRST(RTEMS_SYSINIT_POSIX_CLEANUP)
@@ -542,6 +557,8 @@ static void Init(rtems_task_argument arg)
 
 #define CONFIGURE_MAXIMUM_POSIX_CONDITION_VARIABLES 1
 
+#define CONFIGURE_MAXIMUM_POSIX_SEMAPHORES 1
+
 #define CONFIGURE_MAXIMUM_POSIX_THREADS 1
 
 #endif /* RTEMS_POSIX_API */