What happens during boot time in terms of scheduling?

[Richi Dubey]

I am looking at cpukit/include/rtems/confdefs/inittask.h right now and so,
I know the answer to:

Is _RTEMS_tasks_Initialize_user_task responsible for starting the Init task?


Still need help with other things.

Thanks.

On Fri, Aug 14, 2020 at 2:55 PM Richi Dubey <richidubey at gmail.com> wrote:

> Hi,
>
> I've been trying to debug my program and I request someone to help me
> learn more about what happens when a system starts. Logically, what is the
> flow of things happening? Do all the CPUs start at the same time in the
> beginning? Which is the first node that gets scheduled on the CPU?
>
> The current flow I see right now is:
>
> bsp_start_hook_0_done -> boot_card -> rtems_initialize_executive ->
>  _RTEMS_tasks_Initialize_user_task -> rtems_task_start and so on.
>
> Is _RTEMS_tasks_Initialize_user_task responsible for starting the Init
> task?
>
> Also how does the following code which is part
> of rtems_initialize_executive:
>
>   /* Invoke the registered system initialization handlers */
>   RTEMS_LINKER_SET_FOREACH( _Sysinit, item ) {
>     ( *item->handler )();
>   }
>
> call _RTEMS_tasks_Initialize_user_task?
>
> Please let me know.
>
> Thanks
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rtems.org/pipermail/devel/attachments/20200814/1f461ab7/attachment.html>