#!/bin/bash
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# Description: This shell script used to build linux system SDK. You can
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# use command line argument to specify build target, or select
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# it by hand if no argument given by command line. More detail
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# information can refer to the help message.
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#
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# Author: guowenxue <guowenxue@gmail.com>
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# Version: 1.0.0
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PROJ_PATH=`pwd`
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PACK_PATH=${PROJ_PATH}/tarballs
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PATCH_PATH=${PROJ_PATH}/patches
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PATCH_SUFIX=ok335x.patch
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LINUX_SRC=linux-3.2.0
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UBOOT_SRC=u-boot-2011.09
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ROOTFS_SRC=rootfs
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ROOTFS_IMG=ubifs.img
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TFTP_PATH=/tftp
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IMGS_PATH=images
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target=
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set -e
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function show_help()
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{
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printf "Usage: $1 [system/u-boot/kernel/rootfs/clean]\n\n"
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echo "system: build all source code "
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echo "u-boot: just build u-boot "
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echo "kernel: just build linux kernel "
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echo "rootfs: just build rootfs images"
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printf "clean : clean the source code\n\n"
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exit 0;
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}
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function show_banner()
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{
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echo "+---------------------------------------------+"
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printf "$1\n"
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echo "+---------------------------------------------+"
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}
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function select_target()
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{
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targets=("" "system" "u-boot" "kernel" "rootfs" "clean")
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echo "Please select a build target:"
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echo "1 <system>, build all source code "
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echo "2 <u-boot>, just build u-boot "
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echo "3 <kernel>, just build linux kernel "
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echo "4 <rootfs>, just build rootfs image"
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echo "5 <clean>, clean the source code"
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echo ""
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stty erase '^H'
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read -p "Enter your choise [1-5] : " choice
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if [ $choice -gt 5 ] ; then
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echo "ERROR: Invalid input choice, exit now..."
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exit 1;
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fi
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target=${targets[$choice]}
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}
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function build_uboot()
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{
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if [ ! -d ${UBOOT_SRC} ] ; then
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tar -xJf ${PACK_PATH}/${UBOOT_SRC}.tar.xz
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cd ${UBOOT_SRC}
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patch -p1 < ${PATCH_PATH}/${UBOOT_SRC}-${PATCH_SUFIX}
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else
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cd ${UBOOT_SRC}
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fi
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show_banner "| start uboot build task... |"
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bash build.sh
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show_banner "| uboot build task over! |"
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cd -
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}
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function build_kernel()
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{
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if [ ! -d ${ROOTFS_SRC} ] ; then
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echo "WARNNING: Maybe need input sudo passwd here: "
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sudo tar -xJf ${PACK_PATH}/${ROOTFS_SRC}.tar.xz
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fi
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if [ ! -d ${LINUX_SRC} ] ; then
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tar -xJf ${PACK_PATH}/${LINUX_SRC}.tar.xz
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cd ${LINUX_SRC}
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patch -p1 < ${PATCH_PATH}/${LINUX_SRC}-${PATCH_SUFIX}
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else
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cd ${LINUX_SRC}
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fi
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show_banner "| start kernel build task... |"
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echo "WARNNING: Maybe need input sudo passwd here: "
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sudo bash build.sh
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show_banner "| kernel build task over! |"
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cd -
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}
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function build_ubifs()
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{
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mkfs.ubifs –F -q -r ${ROOTFS_SRC} -m 2048 -e 126976 -c 2047 -o ubi.img
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cat > ubinize.cfg <<EOF
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[ubifs]
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mode=ubi
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image=ubi.img
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vol_id=0
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vol_size=231MiB
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vol_type=dynamic
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vol_name=rootfs
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vol_flags=autoresize
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EOF
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ubinize -o ${ROOTFS_IMG} -m 2048 -p 128KiB ubinize.cfg
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rm -f ubi.img ubinize.cfg
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chmod a+x ${ROOTFS_IMG}
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}
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function build_rootfs()
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{
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if [ ! -d ${ROOTFS_SRC} ] ; then
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echo "WARNNING: Maybe need input sudo passwd here: "
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sudo tar -xJf ${PACK_PATH}/${ROOTFS_SRC}.tar.xz
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fi
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show_banner "| start build rootfs image... |"
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build_ubifs
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show_banner "| rootfs image build over! |"
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if [ -d ${IMGS_PATH} ] ; then
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cp -f ${ROOTFS_IMG} ${IMGS_PATH}
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fi
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if [ -d ${TFTP_PATH} ] ; then
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cp -f ${ROOTFS_IMG} ${TFTP_PATH}
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fi
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}
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function do_clean()
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{
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show_banner "| clean project source code |"
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# cleanup rootfs image
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rm -rf ${ROOTFS_SRC} ${ROOTFS_IMG}
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# cleanup u-boot source code
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if [ -d ${UBOOT_SRC} ] ; then
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cd ${UBOOT_SRC}
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bash build.sh clean
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cd -
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fi
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# cleanup linux kernel source code
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if [ -d ${LINUX_SRC} ] ; then
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cd ${LINUX_SRC}
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bash build.sh clean
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cd -
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fi
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}
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function do_build()
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{
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if [ "$target" = "system" ] ; then
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build_uboot
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build_rootfs
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build_kernel
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elif [ "$target" = "u-boot" ] ; then
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build_uboot
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elif [ "$target" = "kernel" ] ; then
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build_kernel
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elif [ "$target" = "rootfs" ] ; then
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build_rootfs
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elif [ "$target" = "clean" ] ; then
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do_clean
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else
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show_help
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fi
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}
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mkdir -p ${IMGS_PATH}
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# check input arguments for build target
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if [ $# -ge 1 ] ; then
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target=$1
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else
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select_target
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fi
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show_banner "| choose build target [$target] |"
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do_build
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