[yocto] kernel config fragments not applied

[Bruce Ashfield]

On 2017-01-10 4:20 PM, Bruce Ashfield wrote:
> On 2017-01-10 4:13 PM, Schmitt, Richard wrote:
>>
>>
>> -----Original Message-----
>> From: Bruce Ashfield [mailto:bruce.ashfield at windriver.com]
>> Sent: Tuesday, January 10, 2017 2:58 PM
>> To: Schmitt, Richard <Richard.Schmitt at commscope.com>;
>> yocto at yoctoproject.org
>> Subject: Re: [yocto] kernel config fragments not applied
>>
>> On 2017-01-10 1:05 PM, Schmitt, Richard wrote:
>>>> I am having a heck of a hard time getting a minor kernel config
>>>> fragment applied.
>>>>
>>>>
>>>>
>>>> In order to minimize all variables, I am simply trying to build
>>>> linux-yocto for a qemux86 MACHINE target.
>>>>
>>>>
>>>>
>>>
>>> What release ? Everything is working here, but I can switch to
>>> whatever release you are using and run the test there (I'm using
>>> master).
>>
>> I'm using krogoth.  I'll try a build based on master and see if it's
>> release specific.
>
> Thanks. I'm also spinning up a krogoth build .. you never know if
> something crept in. krogoth is before my audit code was visible, so
> hints as to why it failed likely aren't visible.

Well I'll be .... different behaviour with krogoth. I just updated it
and some patches came in from what I had been using before. It could
be something that merged recently.

Anyway, leave this with me. I'll debug it tonight and spin a fix.

Bruce


>
> Bruce
>
>>
>>> Bruce
>>
>>>> There had been some discussion on the mailing list previously that
>>>> suggested making sure linux-yocto.inc was included within the recipes.
>>>> The ones being used are standard poky recipes and they do include the
>>>> linux-yocto.inc file.
>>>>
>>>> My configuration is very simple.  I have my own layer and linux-yocto
>>>> bbappend:
>>>>
>>>> meta-mylayer/recipes-kernel/linux/linux-yocto_4.4.bbappend
>>>>
>>>> Whose contents are:
>>>>
>>> FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
>>>>
>>>> SRC_URI += " \
>>>>         file://overlayfs.cfg \
>>>>         "
>>>>
>>>> With the config fragment in:
>>>>
>>>> meta-mylayer/recipes-kernel/linux/linux-yocto/overlayfs.cfg
>>>>
>>>> whose contents is:
>>>>
>>>> CONFIG_OVERLAY_FS=y
>>>>
>>>> If I do a "bitbake linux-yocto" I would expect it to generate a config
>>>> file that includes CONFIG_OVERLAY_FS=y and a kernel that includes this
>>>> filesystem.  I don't.
>>>>
>>>> My layer is parsed correctly and the bbappend is found and parsed.  I
>>>> know this because in the tmp directory:
>>>>
>>>> tmp/work/qemux86-poky-linux/linux-yocto/4.4.26+gitAUTOINC+3030330b06_c
>>>> a6a08bd7f-r0/
>>>>
>>>> the file overlayfs.cfg exists.
>>>>
>>>> Searching the log files, the only one that references this file though
>>>> is log.do_unpack.  I do not see any reference to it in
>>>> log.do_kernel_configme or log.do_configure.    I'm not sure how kernel
>>>> fragments are applied, but looking through the classes and recipes for
>>>> linux-yocto in poky/meta, I do not see any code that would apply
>>>> kernel fragments.  So I'm not sure if I'm missing some piece.
>>>>
>>>> Searching through the files in poky/meta, I find meta-config.sh only
>>>> in recipes-core/uclibc and recipes-core/busybox.  That's why I think
>>>> I'm missing something.
>>>>
>>>> I'm using the krogoth branch of poky.
>>>>
>>>> What am I missing?
>>>>
>>>> Thanks,
>>>> Rich
>>
>