[linux-yocto] preempt and meta support in linux-yocto-4.1

[Cristian Bercaru]

Could you give me the URL repository used to create the meta data?
Thanks,
Cristian

 > The only thing that has changed is that the meta data is pulled from
 > a separate repository (the same repository that has always been
 > used to create the meta branch), and after that, nothing at all changes
 > to the configuration, patch and build phases.


On 08/07/2015 05:10 AM, Bruce Ashfield wrote:
> On Thu, Aug 6, 2015 at 11:21 AM, Paul Gortmaker
> <paul.gortmaker at windriver.com> wrote:
>> On 2015-08-05 03:44 PM, Cristian Bercaru wrote:
>>> Hello!
>>>
>>> Does linux-yocto-4.1 implement all the preempt-rt support in
>>> standard/preempt-rt branch?
>>> or
>>> Does it have a preempt-rt patch, like 3.4, 3.10 and 3.14?
>>
>> It has always been on a branch IIRC, and I don't think we've
>> ever used a monolithic -rt patch that was applied at build time.
>
> correct. The preempt-rt support is in place for 4.1 and is in the same format
> as the other linux-yocto kernels.
>
> standard/preempt-rt has the broken out -rt patches applied on top of the
> 4.1 baseline.
>
>>
>>>
>>> How is the kernel configuration built in 4.1? I don't see any meta
>>> branch. Does it use configuration fragments, defconfigs, both or is it
>>> left at the BSP developers' choice?
>>
>> The meta content was separated out of the kernel source repo, to
>> be its own entity, but you can still find the content that was
>> there before in tmp/work-shared/genericx86-64/kernel-source/.kernel-meta
>> (for x86, insert your own board/bsp name as appropriate)
>>
>
> Also correct (thanks Paul).
>
> The only thing that has changed is that the meta data is pulled from
> a separate repository (the same repository that has always been
> used to create the meta branch), and after that, nothing at all changes
> to the configuration, patch and build phases.
>
> Cheers,
>
> Bruce
>
>> You can see some of the recent tooling commits relating to meta
>> dir handling on top of tree here:
>>
>> http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/
>>
>> Paul.
>> --
>>
>>>
>>> Thank you,
>>> Cristian Bercaru
>>>
>> --
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>
>
>