Kernel header files for nonstandard rootfs

[adanowitz]

I'd like to use a ubuntu-based rootfs on top of a petalinux boot partition. If I do this, where can I find the kernel header files for the petalinux kernel so that I can compile drivers on the board?

[JColvin]

Hi @adanowitz,

I apologize for the delay. As per this this Xilinx thread, https://forums.xilinx.com/t5/Embedded-Linux/petalinux-files-kernel-headers-for-module-development/td-p/977821, after you build  petalinux, you will find the kernel source at build/tmp/work-shared/plnx-zynqmp/kernel-source/ path in your petalinux project.

Thanks,
JColvin

[Ionel]

@adanowitz you need to add kernel-devsrc package to your petalinux rootfs then copy the {petalinux-rootfs}/lib/modules/{KVER}/build/ directory in your ubunu rootfs /lib/modules/{KVER}/build/

Edited February 26, 2021 by Ionel