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-rw-r--r--cpukit/score/src/threadcreateidle.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/cpukit/score/src/threadcreateidle.c b/cpukit/score/src/threadcreateidle.c
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+++ b/cpukit/score/src/threadcreateidle.c
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+/*
+ * Thread Handler
+ *
+ *
+ * COPYRIGHT (c) 1989-1998.
+ * On-Line Applications Research Corporation (OAR).
+ * Copyright assigned to U.S. Government, 1994.
+ *
+ * The license and distribution terms for this file may be
+ * found in found in the file LICENSE in this distribution or at
+ * http://www.OARcorp.com/rtems/license.html.
+ *
+ * $Id$
+ */
+
+#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>
+
+/*PAGE
+ *
+ * _Thread_Create_idle
+ */
+
+char *_Thread_Idle_name = "IDLE";
+
+void _Thread_Create_idle( void )
+{
+ void *idle;
+ unsigned32 idle_task_stack_size;
+
+ /*
+ * 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();
+
+ /*
+ * Initialize the IDLE task.
+ */
+
+#if (CPU_PROVIDES_IDLE_THREAD_BODY == TRUE)
+ idle = (void *) _CPU_Thread_Idle_body;
+#else
+ idle = (void *) _Thread_Idle_body;
+#endif
+
+ if ( _CPU_Table.idle_task )
+ idle = _CPU_Table.idle_task;
+
+ idle_task_stack_size = _CPU_Table.idle_task_stack_size;
+ if ( idle_task_stack_size < STACK_MINIMUM_SIZE )
+ idle_task_stack_size = STACK_MINIMUM_SIZE;
+
+ _Thread_Initialize(
+ &_Thread_Internal_information,
+ _Thread_Idle,
+ NULL, /* allocate the stack */
+ 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 */
+ _Thread_Idle_name
+ );
+
+ /*
+ * 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,
+ idle,
+ NULL,
+ 0
+ );
+
+}