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Revamp module build script to make it work for 5.15 on Ubuntu 20.04 (s…
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…onic-net#3212)

* Revamp module build script to make it work for 5.15 on Ubuntu 20.04

The current version of the script does not work at all when the host
kernel is Azure's 5.15 kernel on Ubuntu 20.04. It does seem to work with
the non-HWE kernel (version 5.4).

Update the script to add support for building and loading the kernel
modules for the 5.15 kernel, while keeping support for the non-HWE
kernel.

This is a cherry-pick of sonic-net/sonic-swss-common#720

Signed-off-by: Saikrishna Arcot <saiarcot895@gmail.com>

* Remove libswsscommon dependencies from the script

Signed-off-by: Saikrishna Arcot <saiarcot895@gmail.com>

---------

Signed-off-by: Saikrishna Arcot <saiarcot895@gmail.com>
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saiarcot895 authored Jul 2, 2024
1 parent c9c78dc commit 43ac585
Showing 1 changed file with 30 additions and 32 deletions.
62 changes: 30 additions & 32 deletions .azure-pipelines/build_and_install_module.sh
Original file line number Diff line number Diff line change
Expand Up @@ -26,62 +26,60 @@ function build_and_install_kmodule()
SUBLEVEL=$(echo $KERNEL_MAINVERSION | cut -d. -f3)

# Install the required debian packages to build the kernel modules
apt-get update
apt-get install -y build-essential linux-headers-${KERNEL_RELEASE} autoconf pkg-config fakeroot
apt-get install -y flex bison libssl-dev libelf-dev
apt-get install -y flex bison libssl-dev libelf-dev dwarves
apt-get install -y libnl-route-3-200 libnl-route-3-dev libnl-cli-3-200 libnl-cli-3-dev libnl-3-dev

# Add the apt source mirrors and download the linux image source code
cp /etc/apt/sources.list /etc/apt/sources.list.bk
sed -i "s/^# deb-src/deb-src/g" /etc/apt/sources.list
apt-get update
apt-get source linux-image-unsigned-$(uname -r) > source.log
KERNEL_PACKAGE_SOURCE=$(apt-cache show linux-image-unsigned-${KERNEL_RELEASE} | grep ^Source: | cut -d':' -f 2)
KERNEL_PACKAGE_VERSION=$(apt-cache show linux-image-unsigned-${KERNEL_RELEASE} | grep ^Version: | cut -d':' -f 2)
SOURCE_PACKAGE_VERSION=$(apt-cache showsrc ${KERNEL_PACKAGE_SOURCE} | grep ^Version: | cut -d':' -f 2)
if [ ${KERNEL_PACKAGE_VERSION} != ${SOURCE_PACKAGE_VERSION} ]; then
echo "WARNING: the running kernel version (${KERNEL_PACKAGE_VERSION}) doesn't match the source package " \
"version (${SOURCE_PACKAGE_VERSION}) being downloaded. There's no guarantee the module being downloaded " \
"can be loaded into the kernel or function correctly. If possible, please update your kernel and reboot " \
"your system so that it's running the matching kernel version." >&2
echo "Continuing with the build anyways" >&2
fi
apt-get source linux-image-unsigned-${KERNEL_RELEASE} > source.log

# Recover the original apt sources list
cp /etc/apt/sources.list.bk /etc/apt/sources.list
apt-get update

# Build the Linux kernel module drivers/net/team and vrf
cd $(find . -maxdepth 1 -type d | grep -v "^.$")
if [ -e debian/debian.env ]; then
source debian/debian.env
if [ -n "${DEBIAN}" -a -e ${DEBIAN}/reconstruct ]; then
bash ${DEBIAN}/reconstruct
fi
fi
make allmodconfig
mv .config .config.bk
cp /boot/config-$(uname -r) .config
grep NET_TEAM .config.bk >> .config
echo CONFIG_NET_VRF=m >> .config
echo CONFIG_MACSEC=m >> .config
echo CONFIG_NET_VENDOR_MICROSOFT=y >> .config
echo CONFIG_MICROSOFT_MANA=m >> .config
echo CONFIG_SYSTEM_REVOCATION_LIST=n >> .config
make VERSION=$VERSION PATCHLEVEL=$PATCHLEVEL SUBLEVEL=$SUBLEVEL EXTRAVERSION=-${EXTRAVERSION} LOCALVERSION=-${LOCALVERSION} modules_prepare
make M=drivers/net/team
cp /usr/src/linux-headers-$(uname -r)/Module.symvers .
make -j$(nproc) M=drivers/net/team
mv drivers/net/Makefile drivers/net/Makefile.bak
echo 'obj-$(CONFIG_NET_VRF) += vrf.o' > drivers/net/Makefile
echo 'obj-$(CONFIG_MACSEC) += macsec.o' >> drivers/net/Makefile
make M=drivers/net
make -j$(nproc) M=drivers/net

# Install the module
TEAM_DIR=$(echo /lib/modules/$(uname -r)/kernel/net/team)
NET_DIR=$(echo /lib/modules/$(uname -r)/kernel/net)
if [ ! -e "$TEAM_DIR/team.ko" ]; then
mkdir -p $TEAM_DIR
cp drivers/net/team/*.ko $TEAM_DIR/
modinfo $TEAM_DIR/team.ko
depmod
modprobe team
fi
if [ ! -e "$NET_DIR/vrf.ko" ]; then
mkdir -p $NET_DIR
cp drivers/net/vrf.ko $NET_DIR/
modinfo $NET_DIR/vrf.ko
depmod
modprobe vrf
fi
if [ ! -e "$NET_DIR/macsec.ko" ]; then
mkdir -p $NET_DIR
cp drivers/net/macsec.ko $NET_DIR/
modinfo $NET_DIR/macsec.ko
depmod
modprobe macsec
fi
SONIC_MODULES_DIR=/lib/modules/$(uname -r)/updates/sonic
mkdir -p $SONIC_MODULES_DIR
cp drivers/net/team/*.ko drivers/net/vrf.ko drivers/net/macsec.ko $SONIC_MODULES_DIR/
depmod
modinfo team vrf macsec
modprobe team
modprobe vrf
modprobe macsec

cd /tmp
rm -rf $WORKDIR
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