[yocto] Config fragment not being picked up

[Bruce Ashfield]

On 13-04-15 11:17 AM, Saridakis, Dean (US SSA) wrote:
>>>>>>> Think I've followed the example in the manual correctly. My append
>>>>>>> file
>>>> is
>>>>>> pretty simple:
>>>>>>>
>>>>>>> FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}"
>>>>>>
>>>>>> It looks like you forgot the colon at the end of the path.
>>>>>> Try this:
>>>>>>      FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
>>>>>>
>>>>>> -Kevin
>>>>>
>>>>> Good eye, but afraid that didn't help (maybe the path was empty
>>>> before???). I think the files are getting picked up, since fetch will
>>>> fail if change the file name to force a not found error.
>>>>>
>>>>
>>>> What release are you using ? I tested this just last night before the
>>>> 1.4 release final RC .. so it definitely still works!
>>>>
>>>> How are you determining that it isn't being picked up?
>>>
>>> I believe the SDK is based on Yocto 1.2 / Poky 7.0 -- bitbake is 1.15.2.
>>> kernel.bbclass kernel_do_configure() looks like it only does a make
>> oldconfig on defconfig...?
>>> Should I expect to see the .cfg files being eppended there?
>>>
>>> The .config I end up with doesn't have the definitions from my .cfg
>> fragment files.
>>
>> Fragments are processed later in the build procedure. Assuming this is a
>> linux-yocto based bbappend, they'll be added in the kernel_configme task,
>> and will modify the base BSP configuration.
>>
>> That doesn't mean that all the settings will make it to the final .config, since
>> normal LKC processing and missing dependencies would drop
>> invalid/incorrect settings.
>
> The SDK .bb inherits directly from kernel & doesn't use linux-yocto.bb. So listtask doesn't show configme.
> I see an addtask for it in linux-yocto.inc, but am guessing that trying to shoehorn that in on top of the SDK (in my append file) is probably more trouble than it's worth.
> Guess I'm better off trying to figure out how to patch the defconfig?

The ability to use fragments requires that you at least use the
linux-yocto bbclass, it will work with non linux-yocto recipes, but
you need to follow the example in 
meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb

The 1.2 vintage fragments aren't as feature rich as 1.3 and 1.4, but
they should work to add simple fragment modifications.

I hate to see anyone hacking a defconfig unless nothing else works :)

Bruce

>
>
>>
>> Cheers,
>>
>> Bruce
>>
>>>
>>>>
>>>> Cheers,
>>>>
>>>> Bruce
>