[yocto] [meta-raspberrypi] Linux Kernel In Temporary Source Code Directory Is Not a git repository"
Thomas.Thorne at net2edge.com
Thu Nov 10 07:26:15 PST 2016
> The actual kernel source is in work-shared/<your machine>/kernel-source/
Thanks, I knew it had to be something simple:
~/work/rpi-layer/build/tmp/work-shared/raspberrypi3/kernel-source/drivers/usb$ git status
On branch rpi-4.4.y
Your branch is ahead of 'origin/rpi-4.4.y' by 2 commits.
(use "git push" to publish your local commits)
nothing to commit, working directory clean
I'll generate my patches off of that work area.
> If you are trying to modify a header
I am patching drivers/usb/serial/option.c and drivers/usb/serial/usb_wwan.c so no header file changes as far as I aware. Thank you for the warning though.
Thomas A. F. Thorne<mailto:Thomas.Thorne at Net2Edge.com> Software Engineer Net2Edge<http://www.net2edge.com/>
From: Bruce Ashfield [mailto:bruce.ashfield at gmail.com]
Sent: 10 November 2016 15:19
To: Thomas Thorne <Thomas.Thorne at net2edge.com>
Cc: Yocto Project Discussion <yocto at yoctoproject.org>
Subject: Re: [yocto] [meta-raspberrypi] Linux Kernel In Temporary Source Code Directory Is Not a git repository"
On Thu, Nov 10, 2016 at 8:10 AM, Thomas A. F. Thorne MEng AUS MIET <Thomas.Thorne at net2edge.com<mailto:Thomas.Thorne at net2edge.com>> wrote:
I am having some trouble attempting to create Kernel patches as per the Yocto Project Development Manual, section 5.10.3. Creating the Patch: http://www.yoctoproject.org/docs/2.1.1/dev-manual/dev-manual.html#creating-the-patch
When I get to the stage that says:
Stage and commit your changes: These Git commands display the modified file, stage it, and then commit the file:
$ git status
I get the response:
$ git status
fatal: Not a git repository (or any of the parent directories): .git
I have a rpi-layer (taken from ) which I have generated binaries for the RasperyPi 3 from. I wanted to modify a couple of kernel modules to add support for a Quectel EC25 module. I located the relevant module code and modified it in my temporary source code area: ~/work/rpi-layer/build/tmp/work/cortexa7hf-neon-vfpv4-poky-linux-gnueabi/linux-libc-headers/4.4-r0/linux-4.4/drivers/usb/serial
You shouldn't be modifying code in that directory, it is for the kernel -> libc headers
The actual kernel source is in work-shared/<your machine>/kernel-source/
If you are trying to modify a header that other applications / recipes need, then that also
shouldn't be done in the libc-headers, it should be done in the source tree and point those
applications at work-shared for their include/build needs.
I guess there is something goofy about the way the raspberrypi layer works and this is actually a special kernel build which is not held in a git repository? If that is the case, why can I a .gitignore file in the ..linux-libc-headers/4.4-r0/linux-4.4 directory?
I could create a git patch by hand for the next stage but it would be much easier to modify a clone of the correct repository.
Can anyone spot my obvious mistake?
Thomas A. F. Thorne MEng. AUS MIET
Tel: +44 3450 130 030<tel:+443450130030>
Email: Thomas.Thorne at Net2Edge.com<mailto:Thomas.Thorne at Net2Edge.com>
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