Re: [PATCH] meta: build the linux-kernels cross libc-dev package if cross-profile is active

["'Jan Kiszka' via isar-users" <isar-users@googlegroups.com>]

On 18.12.25 11:17, Moessbauer, Felix (FT RPD CED OES-DE) wrote:
> On Thu, 2025-12-18 at 10:57 +0100, Tobias Schaffner wrote:
>> The linux-libc-dev-${DISTRO_ARCH}-cross package is not created when cross
>> building the kernel because the pkg.${BPN}.cross build profile is only
>> activated for -native builds with the :cross-pkgs override.
>>
>> This is an issue for custom kernels, because without the custom cross package,
>> dependent packages fall back to the default linux-libc-dev, which may lack
>> custom kernel headers.
>>
>> Ensure that the cross package is also build for cross-builds when
>> KERNEL_LIBC_DEV_DEPLOY=1 is set, by adding the pkg.${BPN}.cross profile to the
>> default BUILD_PROFILES.
> 

Testing this now as well. Thanks already!

> Hi,
> 
> this issue probably was found on the xenomai-images layer. As this is
> the second or third time we have issues on the libc-dev dependency
> chain, we definitely need a test.
> 

Yes, we need that. I wasn't updating xenomai-images for a while, so I
didn't catch the regression this way.

> Please also try to find the commit that broke it and add a fixes tag.
> 

Most likely afba99fe6aeb7d4aae1209e37d1f64458b31f62e.

Jan

> + CC Stefan
> 
> Best regards,
> Felix
> 
>>
>> Signed-off-by: Tobias Schaffner <tobias.schaffner@siemens.com>
>> ---
>>  meta/classes-recipe/linux-kernel.bbclass | 4 +++-
>>  1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/meta/classes-recipe/linux-kernel.bbclass b/meta/classes-recipe/linux-kernel.bbclass
>> index 8f38a617..c9ac3336 100644
>> --- a/meta/classes-recipe/linux-kernel.bbclass
>> +++ b/meta/classes-recipe/linux-kernel.bbclass
>> @@ -126,7 +126,9 @@ BBCLASSEXTEND:append:cross-profile = " kbuildtarget"
>>  
>>  # When cross-profile is active:
>>  # build only kernel (including config) with the default variant of the recipe
>> -BUILD_PROFILES:cross-profile = "pkg.${BPN}.kernel"
>> +# and build the cross libc-dev package if KERNEL_LIBC_DEV_DEPLOY is enabled
>> +BUILD_PROFILES:cross-profile = "pkg.${BPN}.kernel \
>> +    ${@ 'pkg.' + d.getVar('BPN') + '.cross' if bb.utils.to_boolean(d.getVar('KERNEL_LIBC_DEV_DEPLOY')) else '' }"
>>  
>>  # -native: kbuild package for host
>>  BUILD_PROFILES:class-native = "pkg.${BPN}.kbuild"
>> -- 
>> 2.43.0
> 


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Linux Expert Center

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