Function idle_group_initialize

sched/init/nx_start.c:430–480

 ****************************************************************************/

static void idle_group_initialize(void)
{
  FAR struct tcb_s *tcb;
  int hashndx;
  int i;

  /* Assign the process ID(s) of ZERO to the idle task(s) */

  for (i = 0; i < CONFIG_SMP_NCPUS; i++)
    {
      tcb = &g_idletcb[i];

      hashndx = PIDHASH(i);
      g_pidhash[hashndx] = tcb;

      /* Allocate the IDLE group */

      DEBUGVERIFY(
        group_allocate(tcb, tcb->flags));

      /* Initialize the task join */

      nxtask_joininit(tcb);

#ifdef CONFIG_SMP
      /* Create a stack for all CPU IDLE threads (except CPU0 which already
       * has a stack).
       */

      if (i > 0)
        {
          DEBUGVERIFY(up_cpu_idlestack(i, tcb, CONFIG_IDLETHREAD_STACKSIZE));
        }
#endif

      /* Initialize the processor-specific portion of the TCB */

      up_initial_state(tcb);

      /* Initialize the thread local storage */

      tls_init_info(tcb);

      /* Complete initialization of the IDLE group.  Suppress retention
       * of child status in the IDLE group.
       */

      group_initialize(tcb);
      tcb->group->tg_flags = GROUP_FLAG_NOCLDWAIT | GROUP_FLAG_PRIVILEGED;
    }
}

/****************************************************************************
 * Public Functions