[yocto] SRC_URI scope and kernel fragments in non-yocto kernel recipes

[Bruce Ashfield]

On 13-01-28 01:35 PM, Bruce Ashfield wrote:
> On 13-01-28 01:34 PM, stephen.lawrence at renesas.com wrote:
>> Bruce Ashfield <bruce.ashfield at windriver.com> wrote on 28/01/2013
>> 18:01:57:
>> [snip]
>>>> I suspect the kernel fragment issue is down to the fact that a yocto
>>>> kernel recipe is not being used,
>>>> i.e. it relies on the yocto kernel meta data mechanism?
>>>
>>> I can confirm this part. Your recipe must inherit kernel-yocto bbclass
>>> if you want the fragment to be applied to the base config. But you can
>>> use linux-yocto-custom, to build your mainline recipe AND have the
>>> fragment work.
>>
>> ok sounds hopeful. I'm not familiar with linux-yocto-custom.
>> I'll have a dig in the meta tree and google.
>
> You'll fine a reference recipe in meta-skeleton in the yocto/oe-core
> tree.
>
>>
>>>>
>>>> Why is the SRC_URI containing the additional patches applied when
>>>> referenced directly in the bb file,
>>>> but not when referenced in an include or scc file?
>>>
>>> Keeping the question isolated to just the patch on the SRC_URI is a
>>> good idea to make sure we are talking about the simplest case.
>>>
>>> Which type of recipe isn't having the patch applied, the mainline one ?
>>> The linux-yocto one, or both ?
>>
>> Currently I've only tried the mainline one.
>>
>> I would need to revert and try again tomorrow, but when the SRC_URI
>> containing the additional patches was in an include, I recall the patch
>> files were not listed in the build prep logs such as do_fetch.
>> Not surprising in that case, but they were also not copied over into the
>> git tree of the work area.
>>
>> So it was as if the include was parsed but the SRC_URI was ignored.
>
> I'll try a test here and see what happens in the mean time.

I can confirm that in my simple test, I can have a kernel recipe
linux-<your recipe name>.bbappend in a layer that includes .inc file,
who's only contents are:

SRC_URI += "file://0001-makefile-add-comment.patch"

And I get the patch applied to the tree. Am I understanding correctly ?
or is that different from what you are trying to do?

Bruce


>
> Bruce
>
>
>>
>> Regards
>>
>> Steve
>>
>>
>> Stephen  Lawrence, Senior Engineer, Systems, Linux/SDK, Renesas
>> Electronics Europe Ltd, Dukes Meadow, Millboard Road, SL8 5FH, Bourne
>> End, UK,  Phone:+44 1628 651-789, Fax:+44 1628 651-804,
>> mailto:Stephen.Lawrence at renesas.com, http://www.renesas.eu
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