[yocto] How to use PREEMPT-RT Header in Yocto

[Jeff Osier-Mixon]

Hi Michael - the Kernel Development Manual discusses using PREEMPT_RT here:
http://www.yoctoproject.org/docs/2.0/kernel-dev/kernel-dev.html#using-kernel-metadata-in-a-recipe

I hope that helps a bit

On Mon, Dec 7, 2015 at 6:57 AM, Baumann, Michael
<Michael.Baumann at vector.com> wrote:
> Hello everbody,
>
> I am trying to use the PREEMPT-RT patch, therefore I bitbake an image with the linux-yocto-rt 4.1.8 kernel.
> The linux-yocto-rt kernel is built and runs in qemux86.
> Now I try to build an application which uses the sched_setattr to set scheduling policy SCHED_DEADLINE from <sched.h>.
> My Bitbake fails to build this application because of wrong header files e.g.
>
> error: storage size of 'scheduling_attribut' isn't known
>     struct sched_attr scheduling_attribut;
> and
> warning: implicit declaration of function 'sched_setattr'
>
> in my created SDK (bitbake <image> -c populate_sdk) I have this /usr/include/sched.h file:  http://pastebin.com/gaXejv6j
> I would have expect to find this file http://git.yoctoproject.org/cgit/cgit.cgi/linux-yocto-4.1/tree/include/linux/sched.h
>
> How do I use the correct header files from PREEMPT-RT patch in my yocto build environment?
>
> Regards,
> Michael
> --
> _______________________________________________
> yocto mailing list
> yocto at yoctoproject.org
> https://lists.yoctoproject.org/listinfo/yocto



-- 
Jeff Osier-Mixon
Open Source Community Architect, Intel Corporation