[Xenomai-core] Xenomai as module changing bzImage

[Xenomai-core] Xenomai as module changing bzImage

[Rodrigo Rosenfeld Rosas]

Hi Philippe,

I disabled the kernel .config support, recompiled the kernel with latest ipipe 
patch and rebooted my system (Xenomai configured as a module).

Then I downloaded last svn Xenomai. Compiled it (after correcting drvlib.c of 
rtdm skin) and noted that it has changed the kernel bzImage too, besides 
building the modules. Although I can use the new Xenomai modules without 
rebooting my system, I can not understand why should bzImage change. Have you 
any idea?

Thanks in advance,

Rodrigo.

		
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Re: [Xenomai-core] Xenomai as module changing bzImage

[Jan Kiszka]

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Rodrigo Rosenfeld Rosas wrote:
> Hi Philippe,
> 
> I disabled the kernel .config support, recompiled the kernel with latest ipipe 
> patch and rebooted my system (Xenomai configured as a module).
> 
> Then I downloaded last svn Xenomai. Compiled it (after correcting drvlib.c of 
> rtdm skin) and noted that it has changed the kernel bzImage too, besides 
> building the modules. Although I can use the new Xenomai modules without 
> rebooting my system, I can not understand why should bzImage change. Have you 
> any idea?

Even if you turn on module support for all Xenomai components in the 2.1
series, there are still some bits (the HAL) being compiled directly into
kernel. So, any modification of headers etc. may trigger a recompilation
although the binary output will be the same.

Jan


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Re: [Xenomai-core] Xenomai as module changing bzImage

[Philippe Gerum]

Rodrigo Rosenfeld Rosas wrote:
> Hi Philippe,
> 
> I disabled the kernel .config support, recompiled the kernel with latest ipipe 
> patch and rebooted my system (Xenomai configured as a module).
> 
> Then I downloaded last svn Xenomai. Compiled it (after correcting drvlib.c of 
> rtdm skin) and noted that it has changed the kernel bzImage too, besides 
> building the modules. Although I can use the new Xenomai modules without 
> rebooting my system, I can not understand why should bzImage change. Have you 
> any idea?

Some changes might impact arch-level headers the static portion of the HAL depends on.

> 
> Thanks in advance,
> 
> Rodrigo.
> 
> 		
> _______________________________________________________
> Yahoo! Acesso Grátis - Internet rápida e grátis. Instale o discador agora!
> http://br.acesso.yahoo.com
> 
> 
> _______________________________________________
> Xenomai-core mailing list
> Xenomai-core@domain.hid
> https://mail.gna.org/listinfo/xenomai-core
> 


-- 

Philippe.

Re: [Xenomai-core] Xenomai as module changing bzImage

[Rodrigo Rosenfeld Rosas]

Thank you Jan and Philippe for pointing me that the changes is due to 
HAL portion. Now I know I don't need to worry about that and that I can 
use the new modules in a safe way without the need of rebooting the system.

Jan, actually the binary output is different, at least for the HAL 
portion... And thank you for the fast howto on svn. I appreciate it a 
lot. I think it will be much simpler to be up to date with xenomai trunk. :)

Thank you guys! Answering part of the Xenomai x RTLinux Jeff's question, 
one more reason to stay with Xenomai is the support we can get here from 
you. That is the best list support I've ever seen.

Best Regards,

Rodrigo.



Jan Kiszka escreveu:
> Rodrigo Rosenfeld Rosas wrote:
>   
>> Hi Philippe,
>>
>> I disabled the kernel .config support, recompiled the kernel with latest ipipe 
>> patch and rebooted my system (Xenomai configured as a module).
>>
>> Then I downloaded last svn Xenomai. Compiled it (after correcting drvlib.c of 
>> rtdm skin) and noted that it has changed the kernel bzImage too, besides 
>> building the modules. Although I can use the new Xenomai modules without 
>> rebooting my system, I can not understand why should bzImage change. Have you 
>> any idea?
>>     
>
> Even if you turn on module support for all Xenomai components in the 2.1
> series, there are still some bits (the HAL) being compiled directly into
> kernel. So, any modification of headers etc. may trigger a recompilation
> although the binary output will be the same.
>
> Jan
>
>   


		
_______________________________________________________
Yahoo! Acesso Grátis - Internet rápida e grátis. Instale o discador agora!
http://br.acesso.yahoo.com