WorkingTipsOnBuild6130tcKernel

TurnToJPG -->

Preparation

Definition for the vagrant build machine:

$ cat Vagrantfile 
Vagrant.configure("2") do |config|
  config.vm.box = "bento/ubuntu-22.04"
  config.disksize.size = '180GB'

config.vm.provider "virtualbox" do |v|
  v.memory = 65535
  v.cpus = 12
end

end
$ pwd
/home/dash/Code/vagrant/buildUbuntuKernel610tc

Extend the partition after login to the vm:

lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv 
resize2fs /dev/ubuntu-vg/ubuntu-lv

update the system:

apt update -y && apt upgrade -y

Install necessary packages for building kernel:

sudo apt install libncurses-dev gawk flex bison openssl libssl-dev dkms libelf-dev libudev-dev libpci-dev libiberty-dev autoconf llvm
sudo apt build-dep linux linux-image-unsigned-6.1.0-1029-oem

Source Code

enable all of the items of deb-src in /etc/apt/sources.list, then sudo apt update -y.

mkdir -p ~/Code/Code6101029
cd ~/Code/Code6101029
apt source linux-image-unsigned-6.1.0-1029-oem

Build the packages:

cd /home/vagrant/Code/Code6101029/linux-oem-6.1-6.1.0
fakeroot debian/rules clean
fakeroot debian/rules binary

Check the build result:

$ ls
linux-buildinfo-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-headers-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-image-unsigned-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-modules-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-modules-ipu6-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-modules-ivsc-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-modules-iwlwifi-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-oem-6.1-headers-6.1.0-1033_6.1.0-1033.33_all.deb
linux-oem-6.1-tools-6.1.0-1033_6.1.0-1033.33_amd64.deb
linux-oem-6.1-tools-host_6.1.0-1033.33_all.deb
linux-tools-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb

Using docker for building

Initialize a docker instance for building:

sudo docker run -it -v /media/sdc/Code/buildkernel:/buildkernel ubuntu:22.04 /bin/bash

enter the docker and run:

apt update -y
apt install -y vim
vim /etc/apt/sources.list
apt update -y
apt install libncurses-dev gawk flex bison openssl libssl-dev dkms libelf-dev libudev-dev libpci-dev libiberty-dev autoconf llvm debhelper rsync python3-docutils bc libcap-dev git build-essential  asciidoc cpio libjvmti-oprofile0 linux-tools-common default-jdk binutils-dev libbtf1 libdwarf-dev dwarf* pahole libdwarf1 libdwarf++0
# get the dependencies via "dpkg-buildpackage -b"
apt install -y makedumpfile libnewt-dev libdw-dev pkg-config libunwind8-dev liblzma-dev libaudit-dev uuid-dev libnuma-dev zstd fig2dev sharutils python3-dev python3-sphinx python3-sphinx-rtd-theme imagemagick graphviz dvipng fonts-noto-cjk latexmk librsvg2-bin
mkdir -p  /buildkernel/oem && cd /buildkernel/oem
apt source linux-image-unsigned-6.1.0-1029-oem
cd linux-oem-6.1
cd linux-oem-6.1-6.1.0/
time sh -c 'fakeroot debian/rules clean && fakeroot debian/rules binary'

build time:

real	32m18.795s
user	309m36.938s
sys	43m52.711s

Customize kernel config file

Fetch the config file:

scp remote_config_files /root/config.common.ubuntu
cp /root/config.common.ubuntu linux-oem-6.1-6.1.0/debian.oem/config/

Edit the files:

# vim debian/rules.d/2-binary-arch.mk
......
	if [ -e $(commonconfdir)/config.common.ubuntu ]; then \
		//cat $(commonconfdir)/config.common.ubuntu $(archconfdir)/config.common.$(arch) $(archconfdir)/config.flavour.$(target_flavour) > $(builddir)/build-$*/.config; \
		cat /root/config.common.ubuntu > $(builddir)/build-$*/.config; \
	else \
......
# vim debian/rules.d/4-checks.mk
......
# Check the module list against the last release (always)
module-check-%: $(stampdir)/stamp-install-%
	@echo Debug: $@
	echo "done!"; 
	#$(DROOT)/scripts/checks/module-check "$*" \
	#	"$(prev_abidir)" "$(abidir)" $(do_skip_checks)


.......
config-prepare-check-%: $(stampdir)/stamp-prepare-tree-%
	@echo Debug: $@
	if [ -e $(commonconfdir)/config.common.ubuntu ]; then \
		echo "done!"; \
		#perl -f $(DROOT)/scripts/checks/config-check \
		#	$(builddir)/build-$*/.config "$(arch)" "$*" "$(commonconfdir)" \
		#	"$(skipconfig)" "$(do_enforce_all)"; \

......

patch :

$ patch -p1 < xxxx.patch

Then building.

tc diff for dkms

Create the diff files via:

# diff -x '.*' -Nur i915-sriov-dkms-6.1.73 i915-sriov-dkms-6.1.73.tci>dkms-kexec.patch

apply the patch , then rebuild:

# dkms remove -m i915-sriov-dkms -v 6.1.73
# dkms install -m i915-sriov-dkms -v 6.1.73