in-tree defconfig

in-tree defconfig

[Robert Berger]

Hi,

What I wanted to do is to start from an in-tree defconfig like
multi_v7_defconfig instead of a defconfig file in a kernel recipe (which
works).

Maybe we have a different definition of an in-tree defconfig file, but
what I mean is the output of make multi_v7_defconfig, I guess what you
mean is arch/arm/configs/multi_v7_defconfig without running make on it.

After stripping blank and commented lines and sorting everything the
difference is:

-rw-rw-r-- 1 student student 14K Dec  9 22:16
KBUILD_DEFCONFIG-stripped-1-sorted
-rw-rw-r-- 1 student student 42K Dec  9 22:14
make-multi_v7_defconfig-stripped-1-sorted

... and the stuff built with KBUILD_DEFCONFIG does not boot ...

So my question is:"Is there a way to tell the kernel build system to run
make multi_v7_defconfig and use this as a base configuration where
patches and configurations will be added later on?"

If so can you see anything I am obviously doing wrong?

I tried this:

# SRC_URI += " \
#         file://defconfig \
#         "

+# Let's try an in-tree defconfig:
#KERNEL_DEFCONFIG_multi-v7-ml ?= "multi_v7_defconfig"
KBUILD_DEFCONFIG_multi-v7-ml ?= "multi_v7_defconfig"

with the kernel recipe of my meta-layer[1]

That's the meta-layer[2].

Regards,

Robert

[1]
https://github.com/RobertBerger/meta-mainline/blob/jethro-training-v4.1.x/multi-v7-ml/recipes-kernel/linux/linux-yocto-custom.inc
[2]
https://github.com/RobertBerger/meta-mainline/tree/jethro-training-v4.1.x/multi-v7-ml


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Re: in-tree defconfig

[Robert Berger]

Hi,

This seems to do the trick:

https://github.com/RobertBerger/meta-mainline/blob/jethro-training-v4.1.x/multi-v7-ml/recipes-kernel/linux/linux-yocto-custom.inc

Regards,

Robert



..."The scientific name for an animal that doesn't either run from or
fight its enemies is lunch." - Michael Friedman

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Re: in-tree defconfig

[Daniel.]

Hey Robert,

I've done this by prepending kernel configure task. It just copies the
*_defconfig file to WORKDIR as defconfig.

do_configure_prepend() {
    cp ${S}/arch/arm/configs/my_defconfig ${WORKDIR}/defconfig
}

Regards,
- dhs

2015-12-09 21:43 GMT-02:00 Robert Berger <gmane@reliableembeddedsystems.com>:
> Hi,
>
> This seems to do the trick:
>
> https://github.com/RobertBerger/meta-mainline/blob/jethro-training-v4.1.x/multi-v7-ml/recipes-kernel/linux/linux-yocto-custom.inc
>
> Regards,
>
> Robert
>
>
>
> ..."The scientific name for an animal that doesn't either run from or
> fight its enemies is lunch." - Michael Friedman
>
> My public pgp key is available,at:
> http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x90320BF1
>
>
> --
> _______________________________________________
> yocto mailing list
> yocto@yoctoproject.org
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Re: in-tree defconfig

[Bruce Ashfield]

On 12/09/2015 06:43 PM, Robert Berger wrote:
> Hi,
>
> This seems to do the trick:
>
> https://github.com/RobertBerger/meta-mainline/blob/jethro-training-v4.1.x/multi-v7-ml/recipes-kernel/linux/linux-yocto-custom.inc
>

That's what I would have suggested. Set the kconfig mode so that in
tree config becomes the baseline.

In the upcoming release, I have an open bugzilla to tweak the way
that this works, and I should be able to detect that in tree
defconfig and make alldefconfig the default for that mode.

Let me know if you have other issues with it.

Bruce

> Regards,
>
> Robert
>
>
>
> ..."The scientific name for an animal that doesn't either run from or
> fight its enemies is lunch." - Michael Friedman
>
> My public pgp key is available,at:
> http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x90320BF1
>
>