rtems/src/taskinitusers.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_Initialize_user_task().
0010  */
0011
0012 /*
0013  *  COPYRIGHT (c) 1989-2008.
0014  *  On-Line Applications Research Corporation (OAR).
0015  *
0016  * Redistribution and use in source and binary forms, with or without
0017  * modification, are permitted provided that the following conditions
0018  * are met:
0019  * 1. Redistributions of source code must retain the above copyright
0020  *    notice, this list of conditions and the following disclaimer.
0021  * 2. Redistributions in binary form must reproduce the above copyright
0022  *    notice, this list of conditions and the following disclaimer in the
0023  *    documentation and/or other materials provided with the distribution.
0024  *
0025  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0026  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0027  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0028  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0029  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0030  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0031  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0032  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0033  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0034  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0035  * POSSIBILITY OF SUCH DAMAGE.
0036  */
0037
0038 #ifdef HAVE_CONFIG_H
0039 #include "config.h"
0040 #endif
0041
0042 #include <rtems/rtems/tasksimpl.h>
0043 #include <rtems/score/assert.h>
0044 #include <rtems/score/threadimpl.h>
0045 #include <rtems/score/interr.h>
0046
0047 void _RTEMS_tasks_Initialize_user_task( void )
0048 {
0049   rtems_id                                id;
0050   rtems_status_code                       return_value;
0051   const rtems_initialization_tasks_table *user_task;
0052
0053   user_task = &_RTEMS_tasks_User_task_table;
0054   return_value = rtems_task_create(
0055     user_task->name,
0056     user_task->initial_priority,
0057     user_task->stack_size,
0058     user_task->mode_set,
0059     user_task->attribute_set,
0060     &id
0061   );
0062   if ( !rtems_is_status_successful( return_value ) ) {
0063     _Internal_error( INTERNAL_ERROR_RTEMS_INIT_TASK_CREATE_FAILED );
0064   }
0065
0066   return_value = rtems_task_start(
0067     id,
0068     user_task->entry_point,
0069     user_task->argument
0070   );
0071   _Assert( rtems_is_status_successful( return_value ) );
0072   (void) return_value;
0073
0074   _Assert( _Thread_Global_constructor == 0 );
0075   _Thread_Global_constructor = id;
0076 }