Hi,
I did write a small script that compiles a user mode linux kernel and then run
all kselftests under this kernel.
What do you think about this idea?
script is:
#!/bin/sh
# x86_64 or i386
SUBARCH=x86_64
LINUX_DIR=/home/thomas/git/linux
RAW_FILE=Fedora-Cloud-Base-26-1.5.x86_64.raw
CLOUD_INIT_FILE=Fedora-Cloud-Base-Init.iso
KSELFTEST_FILE=Fedora-Cloud-Base-kselftests.img
if [ ! -f "$RAW_FILE" ]; then
curl -OL "https://download.fedoraproject.org/pub/fedora/linux/releases/26/CloudImages/x86_64/images/$RAW_FILE.xz"
unxz $RAW_FILE.xz
fi
if [ ! -f "$CLOUD_INIT_FILE" ]; then
{ echo instance-id: iid-local01; echo local-hostname: cloudimg; } > meta-data
cat > user-data << EOF
#cloud-config
password: passw0rd
chpasswd: { expire: False }
ssh_pwauth: True
mounts:
- [ /dev/ubdc, /opt ]
write_files:
- content: |
[Unit]
Description=/etc/rc.d/rc.local Compatibility
[Install]
WantedBy=multi-user.target
[Service]
Type=simple
ExecStart=/bin/sh /opt/run_kselftest.sh
TimeoutSec=0
RemainAfterExit=yes
GuessMainPID=no
WorkingDirectory=/opt/
StandardOutput=journal+console
path: /etc/systemd/system/kselftest.service
permissions: '0755'
runcmd:
- [ systemctl, daemon-reload ]
- [ systemctl, enable, kselftest.service ]
- [ systemctl, start, --no-block, kselftest.service ]
EOF
## create a disk to attach with some user-data and meta-data
genisoimage -output $CLOUD_INIT_FILE -volid cidata -joliet -rock user-data meta-data
fi
# build kernel
# neither allyesconfig nor defconfig work correctly, because of failing build, missing config options
# so use a custom config for now. FIXME: goal should be to use allyesconfig?
cp config-$SUBARCH $LINUX_DIR/.config
make ARCH=um -C $LINUX_DIR/ -j$(nproc) all
# build and install kselftests
# used by kselftest install
export INSTALL_PATH=`mktemp -d`
make -C $LINUX_DIR/tools/testing/selftests all install
mke2fs -F -d $INSTALL_PATH $KSELFTEST_FILE 256m
rm -R $INSTALL_PATH
$LINUX_DIR/linux mem=1280m umid=kselftests ubd0=$RAW_FILE.cow,$RAW_FILE ubd1=$CLOUD_INIT_FILE ubd2=$KSELFTEST_FILE root=/dev/ubda1 ro rhgb quiet LANG=de_DE.UTF-8 plymouth.enable=0 con=pts con0=fd:0,fd:1
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