score: Static Objects_Information initialization

Statically allocate the objects information together with the initial
set of objects either via <rtems/confdefs.h>.  Provide default object
informations with zero objects via librtemscpu.a.  This greatly
simplifies the workspace size estimate.  RTEMS applications which do not
use the unlimited objects option are easier to debug since all objects
reside now in statically allocated objects of the right types.

Close #3621.

1 files changed, 62 insertions, 0 deletions

diff --git a/cpukit/rtems/src/taskcreate.c b/cpukit/rtems/src/taskcreate.c
index 26953828e9..4055e1eb50 100644
--- a/cpukit/rtems/src/taskcreate.c
+++ b/cpukit/rtems/src/taskcreate.c
@@ -20,12 +20,15 @@
 
 #include <rtems/rtems/tasksimpl.h>
 #include <rtems/rtems/attrimpl.h>
+#include <rtems/rtems/eventimpl.h>
 #include <rtems/rtems/modesimpl.h>
 #include <rtems/rtems/support.h>
 #include <rtems/score/apimutex.h>
 #include <rtems/score/schedulerimpl.h>
 #include <rtems/score/sysstate.h>
 #include <rtems/score/threadimpl.h>
+#include <rtems/score/userextimpl.h>
+#include <rtems/sysinit.h>
 
 rtems_status_code rtems_task_create(
   rtems_name           name,
@@ -198,3 +201,62 @@ rtems_status_code rtems_task_create(
   _Objects_Allocator_unlock();
   return RTEMS_SUCCESSFUL;
 }
+
+static void _RTEMS_tasks_Start_extension(
+  Thread_Control *executing,
+  Thread_Control *started
+)
+{
+  RTEMS_API_Control *api;
+
+  api = started->API_Extensions[ THREAD_API_RTEMS ];
+
+  _Event_Initialize( &api->Event );
+  _Event_Initialize( &api->System_event );
+}
+
+#if defined(RTEMS_MULTIPROCESSING)
+static void _RTEMS_tasks_Terminate_extension( Thread_Control *executing )
+{
+  if ( executing->is_global ) {
+    _Objects_MP_Close(
+      &_RTEMS_tasks_Information.Objects,
+      executing->Object.id
+    );
+    _RTEMS_tasks_MP_Send_process_packet(
+      RTEMS_TASKS_MP_ANNOUNCE_DELETE,
+      executing->Object.id,
+      0                                /* Not used */
+    );
+  }
+}
+#endif
+
+static User_extensions_Control _RTEMS_tasks_User_extensions = {
+  .Callouts = {
+#if defined(RTEMS_MULTIPROCESSING)
+    .thread_terminate = _RTEMS_tasks_Terminate_extension,
+#endif
+    .thread_start     = _RTEMS_tasks_Start_extension,
+    .thread_restart   = _RTEMS_tasks_Start_extension
+  }
+};
+
+static void _RTEMS_tasks_Manager_initialization(void)
+{
+  _Thread_Initialize_information( &_RTEMS_tasks_Information );
+  _User_extensions_Add_API_set( &_RTEMS_tasks_User_extensions );
+
+#if defined(RTEMS_MULTIPROCESSING)
+  _MPCI_Register_packet_processor(
+    MP_PACKET_TASKS,
+    _RTEMS_tasks_MP_Process_packet
+  );
+#endif
+}
+
+RTEMS_SYSINIT_ITEM(
+  _RTEMS_tasks_Manager_initialization,
+  RTEMS_SYSINIT_CLASSIC_TASKS,
+  RTEMS_SYSINIT_ORDER_MIDDLE
+);