On 28.12.2020 15:40, p32 via lists.yoctoproject.org wrote:
Hello everyone,
I am using the Yocto-based build system provided by NXP (primarily via
the meta-freescale layer) to create Linux images for an i.MX 8M board
and would like to develop small kernel modules without going through
the build process of the entire image after each modification.
Therefore, I would prefer to compile the kernel modules on the target
architecture and have added the following items to the IMAGE_INSTALL
variable via my local.conf:
- packagegroup-core-buildessential
- kernel-modules
- kernel-dev
- kernel-devsrc
I then tried to follow the the official build instructions
(https://www.kernel.org/doc/html/latest/kbuild/modules.html) on the
target but was unable to create a kernel module:
imx8mqevk:~# make -C /lib/modules/$(uname -r)/build M=$PWD
make: Entering directory '/lib/modules/5.4.47-2.2.0+g5ec03d06f54e/build'
CC [M] /root/hello.o
In file included from ./include/linux/types.h:6,
from ./include/linux/list.h:5,
from ./include/linux/module.h:9,
from /root/hello.c:1:
./include/uapi/linux/types.h:5:10: fatal error: asm/types.h: No such
file or directory
[...]
compilation terminated.
Hi,
You need to run "make scripts prepare" in /usr/src/kernel before trying
to compile kernel modules on target.
Ovidiu
What am I missing here? Is there something else I have to do on the
target before I can compile kernel modules on the target?
For the sake of completeness: The build is based on the Zeus release
and the following repo manifest file:
https://source.codeaurora.org/external/imx/imx-manifest/tree/imx-5.4.47-2.2.0.xml?h=imx-linux-zeus
Thanks!
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