[yocto] kernel config fragments not applied

[Bruce Ashfield]

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).

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_ca6a08bd7f-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
>
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