From: "Moessbauer, Felix" <felix.moessbauer@siemens.com>
To: "isar-users@googlegroups.com" <isar-users@googlegroups.com>
Subject: Cross compilation of kernel modules for distro kernels
Date: Thu, 3 Mar 2022 08:18:34 +0000 [thread overview]
Message-ID: <AM9PR10MB4869DD98CE40BD069D1521B389049@AM9PR10MB4869.EURPRD10.PROD.OUTLOOK.COM> (raw)
Hi,
I just stumbled upon a cross-compilation issue of a kernel module.
This might be a general issue we should discuss with debian upstream and also handle in the module.inc file.
Situation:
- custom kernel module
- for a stock/distro kernel
- for non amd64 targets
This package depends on the linux-headers-<target> package which transitively attracts the cpp-<x>:<target-arch>.
The cpp-<x>:<target-arch> package however cannot be co-installed with cpp-<x>:amd64.
By that, cross-compiling of the module is simply not possible due to the dependencies of the linux-headers-<target> package.
Notes:
- custom kernels are not affected because they model the dependencies of the headers package differently.
- builds using the sbuilder should also be not affected because each build runs in its own environment (but this is to be checked)
A workaround is to conditionally disable cross compilation for the module:
https://github.com/siemens/meta-coral/pull/16/commits/5a71a1f28b7b2e0406b8f1d707b33817fe74d867
Best regards,
Felix
--
Siemens AG, Technology, T CED SES-DE
Otto-Hahn-Ring 6, 81739 München, Germany
reply other threads:[~2022-03-03 8:18 UTC|newest]
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