/*
* Thread Handler
*
*
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/score/apiext.h>
#include <rtems/score/context.h>
#include <rtems/score/interr.h>
#include <rtems/score/isr.h>
#include <rtems/score/object.h>
#include <rtems/score/priority.h>
#include <rtems/score/states.h>
#include <rtems/score/sysstate.h>
#include <rtems/score/thread.h>
#include <rtems/score/threadq.h>
#include <rtems/score/userext.h>
#include <rtems/score/wkspace.h>
#include <rtems/config.h>
/*PAGE
*
* _Thread_Create_idle
*/
void _Thread_Create_idle( void )
{
Objects_Name name;
name.name_u32 = _Objects_Build_name( 'I', 'D', 'L', 'E' );
/*
* The entire workspace is zeroed during its initialization. Thus, all
* fields not explicitly assigned were explicitly zeroed by
* _Workspace_Initialization.
*/
_Thread_Idle = _Thread_Internal_allocate();
/*
* This is only called during initialization and we better be sure
* that when _Thread_Initialize unnests dispatch that we do not
* do anything stupid.
*/
_Thread_Disable_dispatch();
_Thread_Initialize(
&_Thread_Internal_information,
_Thread_Idle,
NULL, /* allocate the stack */
_Stack_Ensure_minimum( Configuration.idle_task_stack_size ),
CPU_IDLE_TASK_IS_FP,
PRIORITY_MAXIMUM,
true, /* preemptable */
THREAD_CPU_BUDGET_ALGORITHM_NONE,
NULL, /* no budget algorithm callout */
0, /* all interrupts enabled */
name
);
_Thread_Unnest_dispatch();
/*
* WARNING!!! This is necessary to "kick" start the system and
* MUST be done before _Thread_Start is invoked.
*/
_Thread_Heir =
_Thread_Executing = _Thread_Idle;
_Thread_Start(
_Thread_Idle,
THREAD_START_NUMERIC,
Configuration.idle_task,
NULL,
0
);
}
