Re: [PATCH] linux-custom: support to add linux-libc-dev package with kernel name

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

On 11.09.25 10:33, Jan Kiszka wrote:
> On 11.09.25 07:38, Arulpandiyan Vadivel wrote:
>> I understand the issue reported , Can you please help to share/provide
>> the steps to reproduce the issue where I can check for the solutions
>>
> 
> 1. Fix all the urgent mistakes of the patch:
> 
> diff --git a/meta/recipes-kernel/linux/files/debian/control.tmpl b/meta/recipes-kernel/linux/files/debian/control.tmpl
> index a79b86c4..6a4866da 100644
> --- a/meta/recipes-kernel/linux/files/debian/control.tmpl
> +++ b/meta/recipes-kernel/linux/files/debian/control.tmpl
> @@ -36,9 +36,9 @@ Description: Linux support headers for userspace development
>  Package: linux-libc-dev-${DISTRO_ARCH}-cross-${KERNEL_NAME_PROVIDED}
>  Build-Profiles: <!nolibcdev cross !kbuild>
>  Section: devel
> -Conflicts: linux-kernel-headers-${DISTRO_ARCH}-cross
> -Provides: linux-kernel-headers-${DISTRO_ARCH}-cross
> -Replaces: linux-kernel-headers-${DISTRO_ARCH}-cross
> +Conflicts: linux-libc-dev-${DISTRO_ARCH}-cross
> +Provides: linux-kernel-headers-${DISTRO_ARCH}-cross, linux-libc-dev-${DISTRO_ARCH}-cross
> +Replaces: linux-libc-dev-${DISTRO_ARCH}-cross
>  Architecture: all
>  Description: Linux Kernel Headers for development (for cross-compiling)
>   This package provides headers from the Linux kernel.  These headers
> diff --git a/meta/recipes-kernel/linux/files/debian/isar/common.tmpl b/meta/recipes-kernel/linux/files/debian/isar/common.tmpl
> index b004214f..83505fda 100644
> --- a/meta/recipes-kernel/linux/files/debian/isar/common.tmpl
> +++ b/meta/recipes-kernel/linux/files/debian/isar/common.tmpl
> @@ -9,7 +9,7 @@ ARCH=${KERNEL_ARCH}
>  KERNEL_PKG_IMAGE=linux-image-${KERNEL_NAME_PROVIDED}
>  KERNEL_PKG_KERN_HEADERS=linux-headers-${KERNEL_NAME_PROVIDED}
>  KERNEL_PKG_LIBC_HEADERS=linux-libc-dev-${KERNEL_NAME_PROVIDED}
> -KERNEL_PKG_LIBC_HEADERS_CROSS=linux-libc-dev-${DISTRO_ARCH}-cross
> +KERNEL_PKG_LIBC_HEADERS_CROSS=linux-libc-dev-${DISTRO_ARCH}-cross-${KERNEL_NAME_PROVIDED}
>  KERNEL_PKG_KERN_KBUILD=linux-kbuild-${KERNEL_NAME_PROVIDED}
>  KERNEL_PKG_KERN_KBUILD_CROSS=${KERNEL_PKG_KERN_KBUILD}-${DISTRO_ARCH}-cross
>  
> 
> 2. Build a kernel that has KERNEL_LIBC_DEV_DEPLOY = "1"
> 
> 3. Build another packages and check if the self-built linux-libc-dev (-cross) is pulled into the sbuild-chroot
> 
> I got some idea how the latter could possible be restored, even when using libc-dev packages with different names. Will try that out later.
> 

...but it did not work so far: I tried to inject an explicit build 
dependency on linux-libc-dev into every package build, but I had to 
weaken it because KERNEL_LIBC_DEV_DEPLOY is generally off - or there is 
even no custom kernel.

diff --git a/meta/classes/dpkg.bbclass b/meta/classes/dpkg.bbclass
index 0e5a495d..149e8577 100644
--- a/meta/classes/dpkg.bbclass
+++ b/meta/classes/dpkg.bbclass
@@ -115,6 +115,7 @@ dpkg_runbuild() {
         --no-run-lintian --no-run-piuparts --no-run-autopkgtest --resolve-alternatives \
         --bd-uninstallable-explainer=apt \
         --no-apt-update --apt-distupgrade \
+        --add-depends="linux-libc-dev|linux-libc-dev-${PACKAGE_ARCH}-cross|linux-libc-dev-${KERNEL_NAME}|linux-libc-dev-${PACKAGE_ARCH}-cross-${KERNEL_NAME}" \
         --chroot-setup-commands="echo \"Package: *\nPin: release n=${DEBDISTRONAME}\nPin-Priority: 1000\" > /etc/apt/preferences.d/isar-apt" \
         --chroot-setup-commands="echo \"APT::Get::allow-downgrades 1;\" > /etc/apt/apt.conf.d/50isar-apt" \
         --chroot-setup-commands="rm -f /var/log/dpkg.log" \

But this still does not trigger any automatic updates/downgrades to the 
self-built libc-dev.

Jan

-- 
Siemens AG, Foundational Technologies
Linux Expert Center

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