build.sh

#!/bin/bash

BOARD_DIR=`pwd`/board
TARGET=

usage()
{
	echo "usage: build.sh [options]"
	echo "-h		Print this help message"
	echo "-b [board]	Target board(artik520, artik1020, artik530, artik710, artik711s)"
}

parse_options()
{
	TEMP=`getopt -o "h:b:" -- "$@"`
	eval set -- "$TEMP"
	case "$1" in
		-b ) TARGET=$2;;
		-h | * ) usage; exit 1 ;;
	esac
}

parse_options $@

set -x
set -e

let NCPUS=(`grep -c ^processor /proc/cpuinfo` + 1)

SRCS=`pwd`/srcs
BUILD_ROOT=`pwd`/build
OUTPUT=`pwd`/output
PREBUILT=`pwd`/prebuilt
TOOLCHAIN_ROOT=$OUTPUT/toolchain
SYS_ROOT=$OUTPUT/sys_root
SCRIPT_DIR=`pwd`/scripts

if [[ $TARGET == artik71* ]]; then
	TARGET_ARCH=arm64
else
	TARGET_ARCH=arm
fi

[ -d output ] || mkdir output
[ -d output/sys_root ] || mkdir output/sys_root

BUSYBOX=busybox-1_24_0
BUSYBOX_CONFIG=`pwd`/configs/busybox_config
E2FSPROGS=e2fsprogs-1.42.13
PV=pv-1.6.0
UTILLINUX=util-linux-2.27.1
POPT=popt-1.16
LIBGPGERROR=libgpg-error-1.21
LIBGCRYPT=libgcrypt-1.6.5
LVM2=lvm2-2.02.133

LIBC_ESSENTIAL="libm.so.* libc.so.* libpthread.so.* librt.so.* ld-linux-armhf.so.*"
TOOLCHAIN=gcc-linaro-4.9-2015.02-3-x86_64_arm-linux-gnueabihf.tar.xz
TOOLCHAIN_NAME=`echo $TOOLCHAIN | sed 's/^/./' | rev | cut -d. -f3- | rev | cut -c2-`
TOOLCHAIN_PREFIX=arm-linux-gnueabihf-

if [ ! -f $PREBUILT/$TOOLCHAIN ]; then
	pushd $PREBUILT
	wget http://releases.linaro.org/archive/15.02/components/toolchain/binaries/arm-linux-gnueabihf/gcc-linaro-4.9-2015.02-3-x86_64_arm-linux-gnueabihf.tar.xz
	popd
fi

if [ ! -d $TOOLCHAIN_ROOT ]; then
	mkdir $TOOLCHAIN_ROOT
	pushd $TOOLCHAIN_ROOT
	tar xf $PREBUILT/$TOOLCHAIN
	popd
fi

PATH=$TOOLCHAIN_ROOT/$TOOLCHAIN_NAME/bin:$PATH

[ -d build ] || mkdir build
rm -rf build/*
pushd build

tar xf $SRCS/${BUSYBOX}.tar.gz
pushd ${BUSYBOX}

cp ${BUSYBOX_CONFIG} .config
make ARCH=arm CROSS_COMPILE=$TOOLCHAIN_PREFIX -j${NCPUS}
make ARCH=arm CROSS_COMPILE=$TOOLCHAIN_PREFIX install

popd

mkdir ${E2FSPROGS}_install
tar xf $SRCS/${E2FSPROGS}.tar.gz
pushd ${E2FSPROGS}

./configure --host=${TOOLCHAIN_PREFIX%?} \
	--prefix=$BUILD_ROOT/${E2FSPROGS}_install --disable-backtrace \
	--disable-debugfs --disable-imager --disable-defrag --disable-tls \
	--disable-uuidd --disable-nls
make -j${NCPUS}
make install

popd

mkdir ${PV}_install
tar xf $SRCS/${PV}.tar.gz
pushd ${PV}

./configure --host=${TOOLCHAIN_PREFIX%?} --prefix=${BUILD_ROOT}/${PV}_install
LD=${TOOLCHAIN_PREFIX}ld make -j${NCPUS}
LD=${TOOLCHAIN_PREFIX}ld make install

popd

# build lvm2 and its prerequisites
mkdir temp-sysroot

# util-linux
tar xvf $SRCS/${UTILLINUX}.tar.xz
pushd ${UTILLINUX}
./configure --host=${TOOLCHAIN_PREFIX%?} \
	--prefix=${BUILD_ROOT}/temp-sysroot/usr --enable-static \
	--disable-all-programs --enable-libuuid --disable-bash-completion \
	--without-python --without-libiconv-prefix \
	--without-libintl-prefix --without-util --without-termcap \
	--without-udev --without-ncurses --without-tinfo --without-capng \
	--without-libz --without-user
make -j${NCPUS}
make install
popd

# libgpg-error
tar xvf $SRCS/${LIBGPGERROR}.tar.bz2
pushd ${LIBGPGERROR}
./configure --host=${TOOLCHAIN_PREFIX%?} \
	--prefix=${BUILD_ROOT}/temp-sysroot/usr --enable-static
make -j${NCPUS}
make install
popd

# popt
tar xvf $SRCS/${POPT}.tar.gz
pushd ${POPT}
./configure --host=${TOOLCHAIN_PREFIX%?} \
	--prefix=${BUILD_ROOT}/temp-sysroot/usr --enable-static
make -j${NCPUS}
make install
popd

# gcrypt
tar xvf $SRCS/${LIBGCRYPT}.tar.bz2
pushd ${LIBGCRYPT}
./configure --host=${TOOLCHAIN_PREFIX%?} \
	--prefix=${BUILD_ROOT}/temp-sysroot/usr \
	--with-sysroot=${BUILD_ROOT}/temp-sysroot --enable-static \
	--with-gpg-error-prefix=${BUILD_ROOT}/temp-sysroot/usr/
make -j${NCPUS}
make install
popd

# lvm2
tar xvf $SRCS/${LVM2}.tar.xz
pushd ${LVM2}
ac_cv_func_malloc_0_nonnull=yes ac_cv_func_realloc_0_nonnull=yes ./configure \
	--host=${TOOLCHAIN_PREFIX%?} --prefix=${BUILD_ROOT}/temp-sysroot/usr \
	--with-confdir=${BUILD_ROOT}/temp-sysroot/etc \
	--with-default-system-dir=${BUILD_ROOT}/temp-sysroot/etc/lvm \
	--disable-fsadm --disable-selinux --disable-dmeventd \
	--disable-readline --enable-write_install
make -j${NCPUS}
make install
popd

${TOOLCHAIN_PREFIX}gcc -o run-init $SRCS/run-init.c
${TOOLCHAIN_PREFIX}gcc -o artik-updater $SRCS/artik-updater.c

cp ${E2FSPROGS}_install/sbin/e2fsck $SYS_ROOT/sbin
${TOOLCHAIN_PREFIX}strip $SYS_ROOT/sbin/e2fsck
cp ${E2FSPROGS}_install/sbin/mkfs.ext4 $SYS_ROOT/sbin
${TOOLCHAIN_PREFIX}strip $SYS_ROOT/sbin/mkfs.ext4
cp ${E2FSPROGS}_install/sbin/resize2fs $SYS_ROOT/sbin
${TOOLCHAIN_PREFIX}strip $SYS_ROOT/sbin/resize2fs

cp ${PV}_install/bin/pv $SYS_ROOT/bin
${TOOLCHAIN_PREFIX}strip $SYS_ROOT/bin/pv

cp run-init $SYS_ROOT/sbin
${TOOLCHAIN_PREFIX}strip $SYS_ROOT/sbin/run-init

cp artik-updater $SYS_ROOT/sbin
${TOOLCHAIN_PREFIX}strip $SYS_ROOT/sbin/artik-updater

[ -d $SYS_ROOT/lib ] || mkdir $SYS_ROOT/lib
pushd $TOOLCHAIN_ROOT/$TOOLCHAIN_NAME/*/libc/lib/
cp -L $LIBC_ESSENTIAL $SYS_ROOT/lib
${TOOLCHAIN_PREFIX}strip $SYS_ROOT/lib/*
popd

cp -d ${BUILD_ROOT}/temp-sysroot/usr/lib/libdevmapper.* $SYS_ROOT/lib/
${TOOLCHAIN_PREFIX}strip $SYS_ROOT/lib/libdevmapper.*
cp -d ${BUILD_ROOT}/temp-sysroot/usr/sbin/dm* $SYS_ROOT/sbin/
${TOOLCHAIN_PREFIX}strip $SYS_ROOT/sbin/dmsetup

rm -rf build/*

pushd $SYS_ROOT
cp -rf $SCRIPT_DIR/* .

cp -Lrf $BOARD_DIR/common/* .
if [ -d $BOARD_DIR/$TARGET ]; then
	cp -Lrf $BOARD_DIR/$TARGET/* .
fi

find . | cpio -o -H newc | gzip > $OUTPUT/initrd.gz
popd

rm -rf $OUTPUT/sys_root

pushd $OUTPUT
mkimage -A $TARGET_ARCH -O linux -T ramdisk -C none -a 0 -e 0 -n uInitrd -d initrd.gz uInitrd
popd

ls -al $OUTPUT/uInitrd