[poky] History and intentions of linux.inc ?

[Darren Hart]

On 02/08/2011 01:49 PM, Gary Thomas wrote:
> On 02/08/2011 02:41 PM, Darren Hart wrote:
>> I've stumbled over a couple of interesting bits in the existing
>> recipes-kernel/linux/linux.inc, for example (but not limited to):
>>
>>> do_install_prepend() {
>>> if test -e arch/${ARCH}/boot/Image ; then
>>> ln -f arch/${ARCH}/boot/Image arch/${ARCH}/boot/uImage
>>> fi
>>
>> On a recent kernel, the above will overwrite a valid uImage with Image,
>> resulting in a non-bootable set of files in deploy/images.
>>
>>>
>>> if test -e arch/${ARCH}/boot/images/uImage ; then
>>> ln -f arch/${ARCH}/boot/images/uImage arch/${ARCH}/boot/uImage
>>> fi
>>
>> The arch/arm/boot/images directory does not exist on a current kernel
>> (2.6.35-linaro anyway).
>>
>>
>> Does anyone know the historical significance and/or intent of this code?
>> Are there architectures for which this does something sane? After
>> reading through linux.inc, I'm inclined to avoid using it for the
>> meta-linaro kernel, and then going after it with chainsaw.
>>
>> Anyone have anything to add before I start cutting?
>>
>
> I also found the same odd behaviour. My [simple] solution was
> to use my own linux.inc, much like there is a linux-yocto.inc,
> which totally removes do_install_prepend()
>
> I'm sure this is safe to do in the mainline meta/recipes-kernel;
> as I said the yocto kernel already has done away with the whole
> file.
>

Right, which was prompting me to start looking into whether or not 
linux.inc should continue to exist in it's current form.

-- 
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel