rtems/src/taskconstructuser.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSImplClassicTask
0007  *
0008  * @brief This source file contains the implementation of
0009  *   _RTEMS_tasks_Construct_user_task().
0010  */
0011
0012 /*
0013  * Copyright (C) 2020 embedded brains GmbH & Co. KG
0014  *
0015  * Redistribution and use in source and binary forms, with or without
0016  * modification, are permitted provided that the following conditions
0017  * are met:
0018  * 1. Redistributions of source code must retain the above copyright
0019  *    notice, this list of conditions and the following disclaimer.
0020  * 2. Redistributions in binary form must reproduce the above copyright
0021  *    notice, this list of conditions and the following disclaimer in the
0022  *    documentation and/or other materials provided with the distribution.
0023  *
0024  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0025  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0027  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0028  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0029  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0030  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0031  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0032  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0033  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0034  * POSSIBILITY OF SUCH DAMAGE.
0035  */
0036
0037 #ifdef HAVE_CONFIG_H
0038 #include "config.h"
0039 #endif
0040
0041 #include <rtems/rtems/tasksimpl.h>
0042 #include <rtems/score/assert.h>
0043 #include <rtems/score/threadimpl.h>
0044 #include <rtems/score/interr.h>
0045
0046 void _RTEMS_tasks_Construct_user_task( void )
0047 {
0048   const RTEMS_tasks_User_task_config *config;
0049   rtems_status_code                   status;
0050   rtems_id                            id;
0051
0052   config = &_RTEMS_tasks_User_task_config;
0053   status = rtems_task_construct( &config->config, &id );
0054
0055   if ( status != RTEMS_SUCCESSFUL ) {
0056     _Internal_error( INTERNAL_ERROR_RTEMS_INIT_TASK_CONSTRUCT_FAILED );
0057   }
0058
0059   status = rtems_task_start( id, config->entry_point, config->argument );
0060   _Assert( status == RTEMS_SUCCESSFUL );
0061   (void) status;
0062
0063   _Assert( _Thread_Global_constructor == 0 );
0064   _Thread_Global_constructor = id;
0065 }