kernel-autobuild - intrinsics

WORKDIR="/var/lib/kernel-autobuild/3.4/3.4.63--vs2.3.3.9--2"
IMGFILE="squeeze-kerneltest-20130930-182510.img"
IMG="$WORKDIR/img/$IMGFILE"

kvm -M pc -net nic,macaddr=66:66:66:66:66:15,model=rtl8139 -net tap,script=/etc/kvm/kvm-ifup "$IMG" -name squeeze-kerneltest -k de -daemonize -pidfile $WORKDIR/logs/kvm.pid -serial file:$WORKDIR/logs/kvm.log-2 -monitor unix:$WORKDIR/logs/kvm-socket,server,nowait -nographic -vnc 127.0.0.1:15

/usr/bin/vncviewer 127.0.0.1:15
ip a l
ssh root@

( /root/internal-tests ) 2>&1 | tee /dev/ttyS0

The redirection accomplishes logging to file:$WORKDIR/logs/kvm.log-2 outside the kvm instance.

• kernel-autobuild –config some-dotconfig-file –dotconfig-setting DEF=val –dotconfig-setting-file file
• kab_identify_kernel_config_file
  • looks for the latest (time) kernel build tree, sets $LASTVERSION
  • if $LASTCONFIG isn't set (this would be by –config )
    • checks for the latest source/config-${LASTVERSION}*, sets $__LAST_VERSIONED_CONFIG
    • if $__LAST_VERSIONED_CONFIG is a file and exists set $LASTVERSION to $__LAST_VERSIONED_CONFIG
    • elsif source/config is a file and exists set $LASTVERSION to source/config
    • elsif /boot/config-$(uname -r) is a file and exists set $LASTVERSION to /boot/config-$(uname -r)
    • else error && abort
• kernel-autobuild reports $LASTCONFIG to $INFO_DIR/LASTCONFIG
• kab_downloads copies $LASTCONFIG to $SRC_DIR/config
• kab_apply_dotconfigsettings calls kab_modify_dotconfig which
  • reads $SRC_DIR/config
  • applies changes from –dotconfig-setting-file (if present)
  • applies changes from –dotconfig-setting (if present)
  • moves $SRC_DIR/config to $SRC_DIR/config-orig-YYYYMMDD-HHMMDD
  • creates $SRC_DIR/config with applied changes
  • creates $SRC_DIR/dotconfig.changelog listing applied changes suitable for debian/changelog
• kab_compile_and_package
• backups an existing $BUILD_DIR/linux-*/.config to $SRC_DIR/config-orig
• copies $SRC_DIR/config to $BUILD_DIR/linux-*/.config
• runs make oldconfig
• backups $BUILD_DIR/linux-*/.config to $SRC_DIR/config-oldconfig
• ( build kernel )
• backups $BUILD_DIR/linux-*/.config to $SRC_DIR/config-$KSRCVER–${PVER}-$GLOBAL_DATE

If called without none of –dotconfig-setting-file or –dotconfig-setting:

/var/lib/kernel-autobuild/3.10/3.10.40--vs2.3.6.8--1/source# ls -ltrc
total 74184
-rw-r--r-- 1 root root 73247024 May 13 14:03 linux-3.10.40.tar.xz                 <- kernel source archive as downloaded from kernel.org
-rw-r--r-- 1 root root   748146 May 20 07:06 patch-3.10.40-vs2.3.6.8.diff         <- vserver-patch as downloaded from linux-vserver.org
-rw-r--r-- 1 root root     3632 Apr  3 12:46 patch-scripts-package-builddeb-v3.10.35+.diff <- patch to make scripts/package/builddeb suitable
-rw-r--r-- 1 root root   748146 May 20 07:06 patch-3.10.40-vs2.3.6.8.diff-as-downloaded <- vserver-patch as downloaded from linux-vserver.org
-rw-r--r-- 1 root root   748153 Jun 10 14:29 patch-3.10.40-vs2.3.6.8.diff.mod     <- vserver-patch modified to match actual kernel version
-rw-r--r-- 1 root root   149009 May 12 17:19 config                               <- config as inherited from the last build
-rw-r--r-- 1 root root   149009 Jun 10 14:29 config-oldconfig                     <- result of make oldconfig
-rw-r--r-- 1 root root   149009 Jun 10 14:46 config-3.10.40--vs2.3.6.8-20140610-142847 <- result of make oldconfig

If called with one or both of –dotconfig-setting-file or –dotconfig-setting:

Note: config-orig-20140610-164228 takes the place of config here.

/var/lib/kernel-autobuild/3.10/3.10.40--vs2.3.6.8--1/source# ls -ltrc
total 74324
-rw-r--r-- 1 root root 73247024 Jun 10 16:42 linux-3.10.40.tar.xz                 <- kernel source archive as downloaded from kernel.org
-rw-r--r-- 1 root root   748146 Jun 10 16:42 patch-3.10.40-vs2.3.6.8.diff         <- vserver-patch as downloaded from linux-vserver.org
-rw-r--r-- 1 root root     3632 Jun 10 16:42 patch-scripts-package-builddeb-v3.10.35+.diff <- patch to make scripts/package/builddeb suitable
-rw-r--r-- 1 root root   748146 Jun 10 16:42 patch-3.10.40-vs2.3.6.8.diff-as-downloaded <- vserver-patch as downloaded from linux-vserver.org
-rw-r--r-- 1 root root   748153 Jun 10 16:42 patch-3.10.40-vs2.3.6.8.diff.mod     <- vserver-patch modified to match actual kernel version
-rw-r--r-- 1 root root   149009 Jun 10 16:42 config-orig-20140610-164228          <- config as inherited from the last build
-rw-r--r-- 1 root root   149440 Jun 10 16:42 config                               <- config as modified by --dotconfig-setting(-file)
-rw-r--r-- 1 root root     9845 Jun 10 16:42 dotconfig.changelog                  <- changelog: what changes were made by --dotconfig-setting(-file) to config 
-rw-r--r-- 1 root root   142549 Jun 10 16:42 config-oldconfig                     <- result of make oldconfig
-rw-r--r-- 1 root root   142549 Jun 10 16:58 config-3.10.40--vs2.3.6.8-20140610-164136 <- result of make oldconfig

• patch-scripts-package-builddeb-v3.10.35+.diff patches script/package/builddeb
  • now recognizes $KAB_CHANGELOG (see below)
• kab_apply_dotconfigsettings
  • creates $SRC_DIR/dotconfig.changelog listing applied changes suitable for debian/changelog
• returns KAB_CHANGELOG variable
• kernel-autobuild
  • assigns KAB_CHANGELOG to kab_compile_and_package
• kab_compile_and_package
  • export KAB_CHANGELOG
  • make .. calls script/package/builddeb
• script/package/builddeb checks $KAB_CHANGELOG
• script/package/builddeb creates debian/changelog, including the file indicated by $KAB_CHANGELOG