config: CONFIGURE_INIT_TASK_CONSTRUCT_STORAGE_SIZE

In order to better support applications which use the new
rtems_task_construct() directive add the
CONFIGURE_INIT_TASK_CONSTURCT_STORAGE_SIZE configuration option.  If
this option is specified, then the Classic API initialization task is
constructed with rtems_task_construct().

Update #4181.

1 files changed, 65 insertions, 0 deletions

diff --git a/cpukit/rtems/src/taskconstructuser.c b/cpukit/rtems/src/taskconstructuser.c
new file mode 100644
index 0000000000..bc59aabdd2
--- /dev/null
+++ b/cpukit/rtems/src/taskconstructuser.c
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup ClassicTasks
+ *
+ * @brief This source file contains the implementation of
+ *   _RTEMS_tasks_Construct_user_task().
+ */
+
+/*
+ * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/rtems/tasksimpl.h>
+#include <rtems/score/assert.h>
+#include <rtems/score/threadimpl.h>
+#include <rtems/score/interr.h>
+
+void _RTEMS_tasks_Construct_user_task( void )
+{
+  const RTEMS_tasks_User_task_config *config;
+  rtems_status_code                   status;
+  rtems_id                            id;
+
+  config = &_RTEMS_tasks_User_task_config;
+  status = rtems_task_construct( &config->config, &id );
+
+  if ( status != RTEMS_SUCCESSFUL ) {
+    _Internal_error( INTERNAL_ERROR_RTEMS_INIT_TASK_CONSTRUCT_FAILED );
+  }
+
+  status = rtems_task_start( id, config->entry_point, config->argument );
+  _Assert( status == RTEMS_SUCCESSFUL );
+  (void) status;
+
+  _Assert( _Thread_Global_constructor == 0 );
+  _Thread_Global_constructor = id;
+}