Re: [PATCH] linux-custom: Generate cross linux-libc-dev package

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

On 30.08.23 06:50, Uladzimir Bely wrote:
> In addition to `linux-libc-dev`, install cross-variant of this package
> when "cross" debian profile is enabled.
> 
> This should allow to cross-compile packages depending on custom
> kernel headers with different version than in debian packages.
> Typical case - building bookworm system (with linuix-libc-dev-6.1.*)
> against custom kernel with a lower version (e.g., 5.4).
> 
> With this patch, when such a package is built, debian-provided package
> `linux-libc-dev-<ARCH>-cross` will have an alternative package provided
> by custom linux recipe so that sbuild could replace (downgrade) it.
> 
> Signed-off-by: Uladzimir Bely <ubely@ilbers.de>
> ---
>  meta/recipes-kernel/linux/files/debian/control.tmpl   | 11 +++++++++++
>  .../linux/files/debian/isar/common.tmpl               |  2 ++
>  .../linux/files/debian/isar/install.tmpl              |  3 +++
>  3 files changed, 16 insertions(+)
> 
> diff --git a/meta/recipes-kernel/linux/files/debian/control.tmpl b/meta/recipes-kernel/linux/files/debian/control.tmpl
> index dd0b6245..956db3e3 100644
> --- a/meta/recipes-kernel/linux/files/debian/control.tmpl
> +++ b/meta/recipes-kernel/linux/files/debian/control.tmpl
> @@ -29,6 +29,17 @@ Description: Linux support headers for userspace development
>   This package provides userspaces headers from the Linux kernel.  These headers
>   are used by the installed headers for GNU glibc and other system libraries.
>  
> +Package: linux-libc-dev-${DISTRO_ARCH}-cross
> +Build-Profiles: <!nolibcdev cross>
> +Section: devel
> +Provides: linux-kernel-headers-${DISTRO_ARCH}-cross
> +Architecture: all
> +Description: Linux Kernel Headers for development (for cross-compiling)
> + This package provides headers from the Linux kernel.  These headers
> + are used by the installed headers for GNU glibc and other system
> + libraries. They are NOT meant to be used to build third-party modules for
> + your kernel. Use linux-headers-* packages for that.
> +

No idea why this was missed, but when you actually need the package like
I do now, it's quickly clear what all went wrong here. Fix is being
tested...

Jan

-- 
Siemens AG, Foundational Technologies
Linux Expert Center

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