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Date: Wed, 31 Jul 2013 12:57:54 +0200
From: Martin Ertsaas <martiert@gmail.com>
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To: Andrea Adami <andrea.adami@gmail.com>
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Cc: "yocto@yoctoproject.org" <yocto@yoctoproject.org>
Subject: Re: Building linux-yocto kernel in own bsp layer
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On 07/31/13 10:57, Andrea Adami wrote:
> On Wed, Jul 31, 2013 at 9:21 AM, Martin Ertsaas <martiert@gmail.com> wrote:
>> Hi.
>>
>> I'm creating my own bsp layer for omap4 chips (Yes, I know of meta-ti,
>> but I want to learn how to do this myself :)). I'm trying to use the
>> linux-yocto 3.4 kernel,
>> and have gotten it to work locally. I then made a
>> linux-yocto_3.4.bbappend which contains the following:
>>
>> COMPATIBLE_MACHINE_pandaboard = "pandaboard"
>>
>> SRCREV_machine_pandaboard ?= "7eb5fbf903d9db90c3cf371b65e1f2a68d5676d7"
>>
>> THISDIR := "${@os.path.dirname(bb.data.getVar('FILE', d, True))}"
>> FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-3.4"

The defconfig is found. I can see a defconfig in ${WORKDIR} with zero
diff to my defconfig. It is, however, not copied from there into
${WORKDIR}/linux.

I changed it so it uses the colon though, and removed THISDIR as
suggested by Paul, but didn't help. I still don't get the config copied
in, and if I add the do_configure_prepend myself to do this, I get a
message from the kernel building saying my folder is unclean.

- Martin

> Martin,
>
> the code in kernel.bbclass does already copy defonfig to .config, see
> http://cgit.openembedded.org/openembedded-core/tree/meta/classes/kernel.bbclass#n216
>
> I think your problem is the deconfig is not found,  you miss a colon at the end.
> Use something like
>
> FILESEXTRAPATHS_prepend :=
> "${THISDIR}/${PN}-3.4:${THISDIR}/${PN}:${THISDIR}/files:"
>
> Cheers
>
> Andrea
>
>
>> SRC_URI += "file://defconfig"
>>
>> do_configure_prepend() {
>>         cp ${WORKDIR}/defconfig ${S}/.config
>> }
>>
>> Problem I get is, without this configure_prepend, my defconfig is not
>> copied into .config the kernel folder. With this however, I get a
>> complaint from the kernel that the kernel directory is not clean and I
>> have to run make mrproper.
>>
>> I would greatly appreciate any pointer/help/explanations as to what I
>> have done wrong here, and how to fix it. Have been struggling for this
>> for a while now, and have no idea what I have done wrong.
>>
>> Best regards
>> Martin Ertsaas
>> _______________________________________________
>> yocto mailing list
>> yocto@yoctoproject.org
>> https://lists.yoctoproject.org/listinfo/yocto