+#!/bin/bash
+
+# debian image build tool
+# author hackbard@hackdaworld.org
+
+function check_prereq() {
+ # read config
+ [ -f ./config.build ] && . ./config.build
+ # check
+ tc="gcc-`echo $MAKEOPT | sed 's/.*\ CROSS_COMPILE=\(.*\)-.*/\1/'`"
+ deps=0
+ for deb in debootstrap binfmt-support qemu-user-static $tc; do
+ ip=`dpkg -l | grep $deb | awk '{ print $2 }'`
+ if [ -z "$ip" ]; then
+ echo "package $deb required but not installed"
+ deps=1
+ fi
+ done
+ if [ "$deps" = "1" ]; then
+ echo "install prerequisites"
+ exit 1
+ fi
+}
+
+function umount_if_mounted() {
+ mnt=$1
+ rpath="`realpath $PWD`"
+ mntpt=`mount | grep $rpath/$mnt | awk '{ print $3 }'`
+ if [ ! -z "$mntpt" ]; then
+ echo "umounting $mntpt"
+ umount $mntpt
+ fi
+}
+
+function build_all {
+ # read config
+ [ -f ./config.build ] && . ./config.build
+ # build stage 1
+ if [ -f .build_stage1 ]; then
+ echo "stage one already done, skipping ..."
+ else
+ echo "building debian image, first stage ..."
+ # image
+ validimg="no"
+ if [ -f ./rootfs.img ]; then
+ size=`ls -al ./rootfs.img | awk '{ print $5/1048576 }'`
+ if [ "$size" = "$IMGSIZE" ]; then
+ echo "rootfs.img exists"
+ validimg="yes"
+ else
+ echo "creating rootfs.img"
+ fi
+ fi
+ if [ "$validimg" = "no" ]; then
+ dd if=/dev/zero of=./rootfs.img bs=1M count=$IMGSIZE
+ fi
+ mkfs.${ROOTFS} -f -L rootfs ./rootfs.img
+ # mount
+ umount_if_mounted rootfs.mnt
+ rm -rf rootfs.mnt
+ mkdir rootfs.mnt
+ mount -o loop ./rootfs.img ./rootfs.mnt
+ # debootstrap first part
+ debootstrap --verbose --arch $ARCH --variant=minbase \
+ --foreign $SUITE rootfs.mnt $DEBMIRROR
+ # copy emulator
+ cp -v `which $EMU` ./rootfs.mnt/usr/bin
+ touch .build_stage1
+ fi
+ # copy myself
+ cp -v ./build.sh ./rootfs.mnt
+ cp -v ./config.build ./rootfs.mnt
+ if [ ! -f .build_stage2 ]; then
+ # prepare/run second stage
+ modprobe binfmt_misc
+ mnts="rootfs.mnt/dev/pts rootfs.mnt/proc"
+ for mnt in $mnts; do
+ umount_if_mounted $mnt
+ done
+ mount -t proc proc ./rootfs.mnt/proc
+ mkdir -p ./rootfs.mnt/dev/pts
+ mount -t devpts devpts ./rootfs.mnt/dev/pts
+ chroot ./rootfs.mnt /build.sh chroot
+ #
+ # running build_stage2()
+ #
+ for mnt in $mnts; do
+ umount_if_mounted $mnt
+ done
+ touch .build_stage2
+ # cleanup
+ rm -v ./rootfs.mnt/build.sh
+ rm -v ./rootfs.mnt/config.build
+ fi
+}
+
+function build_in_chroot {
+ # read config
+ [ -f ./config.build ] && . ./config.build
+ # build second stage
+ echo "building debian image, second stage ..."
+ [ -f /debootstrap/debootstrap ] && \
+ /debootstrap/debootstrap --second-stage
+ # additional packages + configuration
+ echo "deb ${DEBMIRROR}/ $SUITE main contrib non-free" > \
+ /etc/apt/sources.list
+ echo "deb-src ${DEBMIRROR}/ $SUITE main contrib non-free" >> \
+ /etc/apt/sources.list
+ # run apt
+ apt-get update
+ apt-get -y install $PKGS
+ # locales
+ locale-gen --purge en_US.UTF-8
+ echo 'LANG="en_US.UTF-8"' > /etc/default/locale
+ echo 'LANGUAGE="en_US:en"' >> /etc/default/locale
+ # network
+ echo -en "auto lo\niface lo inet loopback\n" > /etc/network/interfaces
+ echo -en "auto eth0\niface eth0 inet dhcp\n" >> /etc/network/interfaces
+ echo -en "auto usb0\niface usb0 inet dhcp\n" >> /etc/network/interfaces
+ # login on serial console
+ num=`echo $GETTY | sed 's/\([a-zA-Z].*\)\([0-9].*\)/\2/'`
+ echo "T${num}:2345:respawn:/sbin/getty -L $GETTY 115200 linux" >> \
+ /etc/inittab
+ # hostname
+ echo $NAME > /etc/hostname
+ # root
+ echo "/dev/root / $ROOTFS defaults 0 1" > /etc/fstab
+ # behavior of boot scripts
+ echo "HWCLOCKACCESS=no" >> /etc/default/rcS
+ echo "CONCURRENCY=shell" >> /etc/default/rcS
+ # additional packages
+ apt-get -y install $ADDPKGS
+ # (un)set passwd
+ passwd -d root
+ # profile
+ echo -en "\nalias l='ls -al --color'\n\n" >> /etc/profile
+}
+
+#
+# post chroot tasks
+#
+
+function build_uboot() {
+ [ -f ./config.build ] && . ./config.build
+ git clone $UBSRC
+ cd u-boot
+ if [ ! -z "$UBVER" ]; then
+ git checkout $UBVER
+ fi
+ if [ ! -z "$UBPATCH" ]; then
+ patch -Nfp1 < ../patches/$UBPATCH
+ fi
+ make $MAKEOPT distclean
+ make $MAKEOPT $UBCONF
+ make $MAKEOPT
+ cd ..
+}
+
+function build_kernel() {
+ [ -f ./config.build ] && . ./config.build
+ KV=`echo $KERVER | awk -F. '{
+ if($1=="3") print "3.x"
+ else print$1 "." $2
+ }'`
+ KERSRC="https://www.kernel.org/pub/linux/kernel/"
+ KERSRC="$KERSRC/v$KV/linux-${KERVER}.tar.bz2"
+ wget $KERSRC
+ tar xfj linux-${KERVER}.tar.bz2
+ cd linux-$KERVER
+ if [ ! -z "$KERPATCH" ]; then
+ patch -Nfp1 < ../patches/$PATCH
+ fi
+ make $MAKEOPT mrproper
+ if [ ! -z "$KERHOOK" ]; then
+ $KERHOOK
+ fi
+ if [ ! -z "$KERCONF" ]; then
+ make $MAKEOPT $KERCONF
+ fi
+ make $MAKEOPT zImage
+ make $MAKEOPT modules
+ make $MAKEOPT INSTALL_MOD_PATH=../rootfs.mnt modules_install
+ cd ..
+}
+
+function build_sdcard() {
+ echo "creating sdcard ..."
+}
+
+#
+# main
+#
+
+# configuration
+if [ ! -f ./config.build ]; then
+ echo "no configuration found, aborting ..."
+else
+ . ./config.build
+fi
+
+# check prerequisites
+check_prereq
+
+# debootstrap
+if [ -z $1 ]; then
+ build_all > ./build.log 2>&1
+elif [ "$1" = "chroot" ]; then
+ build_in_chroot > ./build_in_chroot.log 2>&1
+elif [ "$1" = "uboot" ]; then
+ build_uboot > ./build_uboot.log 2>&1
+elif [ "$1" = "kernel" ]; then
+ build_kernel > ./build_kernel.log 2>&1
+else
+ echo "unknown option: '$1'"
+fi
+
projects / outofuni / dib.git / commitdiff