source: rtems/cpukit/score/src/threadcreateidle.c @ 9b4422a2

4.115
Last change on this file since 9b4422a2 was 9b4422a2, checked in by Joel Sherrill <joel.sherrill@…>, on 05/03/12 at 15:09:24

Remove All CVS Id Strings Possible Using a Script

Script does what is expected and tries to do it as
smartly as possible.

+ remove occurrences of two blank comment lines

next to each other after Id string line removed.

+ remove entire comment blocks which only exited to

contain CVS Ids

+ If the processing left a blank line at the top of

a file, it was removed.

  • Property mode set to 100644
File size: 2.5 KB
Line 
1/*
2 *  Thread Handler
3 *
4 *
5 *  COPYRIGHT (c) 1989-2011.
6 *  On-Line Applications Research Corporation (OAR).
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.rtems.com/license/LICENSE.
11 */
12
13#if HAVE_CONFIG_H
14#include "config.h"
15#endif
16
17#include <rtems/system.h>
18#include <rtems/score/apiext.h>
19#include <rtems/score/context.h>
20#include <rtems/score/interr.h>
21#include <rtems/score/isr.h>
22#include <rtems/score/object.h>
23#include <rtems/score/priority.h>
24#include <rtems/score/states.h>
25#include <rtems/score/sysstate.h>
26#include <rtems/score/thread.h>
27#include <rtems/score/threadq.h>
28#include <rtems/score/userext.h>
29#include <rtems/score/wkspace.h>
30#include <rtems/config.h>
31#if defined(RTEMS_SMP)
32  #include <rtems/score/smp.h>
33#endif
34
35static inline void _Thread_Create_idle_helper(
36  uint32_t name_u32,
37  int      cpu
38)
39{
40  Objects_Name    name;
41  Thread_Control *idle;
42
43  name.name_u32 = name_u32;
44
45  /*
46   *  The entire workspace is zeroed during its initialization.  Thus, all
47   *  fields not explicitly assigned were explicitly zeroed by
48   *  _Workspace_Initialization.
49   */
50  idle = _Thread_Internal_allocate();
51
52  /*
53   *  This is only called during initialization and we better be sure
54   *  that when _Thread_Initialize unnests dispatch that we do not
55   *  do anything stupid.
56   */
57  _Thread_Disable_dispatch();
58
59  _Thread_Initialize(
60    &_Thread_Internal_information,
61    idle,
62    NULL,        /* allocate the stack */
63    _Stack_Ensure_minimum( Configuration.idle_task_stack_size ),
64    CPU_IDLE_TASK_IS_FP,
65    PRIORITY_MAXIMUM,
66    true,        /* preemptable */
67    THREAD_CPU_BUDGET_ALGORITHM_NONE,
68    NULL,        /* no budget algorithm callout */
69    0,           /* all interrupts enabled */
70    name
71  );
72
73  _Thread_Unnest_dispatch();
74
75  /*
76   *  WARNING!!! This is necessary to "kick" start the system and
77   *             MUST be done before _Thread_Start is invoked.
78   */
79  _Per_CPU_Information[ cpu ].idle      =
80  _Per_CPU_Information[ cpu ].heir      =
81  _Per_CPU_Information[ cpu ].executing = idle;
82
83  _Thread_Start(
84    idle,
85    THREAD_START_NUMERIC,
86    Configuration.idle_task,
87    NULL,
88    0
89  );
90}
91
92void _Thread_Create_idle( void )
93{
94  #if defined(RTEMS_SMP)
95    int cpu;
96
97    for ( cpu=0 ; cpu < _SMP_Processor_count ; cpu++ ) {
98      _Thread_Create_idle_helper(
99        _Objects_Build_name( 'I', 'D', 'L', 'E' ),
100        cpu
101      );
102    }
103  #else
104    _Thread_Create_idle_helper(_Objects_Build_name( 'I', 'D', 'L', 'E' ), 0);
105  #endif
106}
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