#!/bin/bash
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# this project absolute path
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PRJ_PATH=$(cd $(dirname "${BASH_SOURCE[0]}") && pwd)
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# top project absolute path
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TOP_PATH=$(realpath $PRJ_PATH/..)
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# binaries build prefix install path
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PRFX_PATH=$PRJ_PATH/install
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# binaries finally install path if needed
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#INST_PATH=/tftp
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# download taballs path
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TARBALL_PATH=$PRJ_PATH/tarballs
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# config file path
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CONF_FILE=$TOP_PATH/config.json
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# shell script will exit once get command error
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set -e
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#+-------------------------+
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#| Shell script functions |
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#+-------------------------+
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function pr_error() {
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echo -e "\033[40;31m $1 \033[0m"
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}
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function pr_warn() {
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echo -e "\033[40;33m $1 \033[0m"
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}
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function pr_info() {
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echo -e "\033[40;32m $1 \033[0m"
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}
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# decompress a packet to destination path
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function do_unpack()
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{
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tarball=$1
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dstpath=`pwd`
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if [[ $# == 2 ]] ; then
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dstpath=$2
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fi
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pr_info "decompress $tarball => $dstpath"
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mkdir -p $dstpath
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case $tarball in
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*.tar.gz)
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tar -xzf $tarball -C $dstpath
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;;
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*.tar.bz2)
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tar -xjf $tarball -C $dstpath
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;;
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*.tar.xz)
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tar -xJf $tarball -C $dstpath
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;;
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*.tar.zst)
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tar -I zstd -xf $tarball -C $dstpath
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;;
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*.tar)
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tar -xf $tarball -C $dstpath
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;;
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*.zip)
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unzip -qo $tarball -d $dstpath
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;;
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*)
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pr_error "decompress Unsupport packet: $tarball"
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return 1;
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;;
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esac
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}
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# parser configure file and export environment variable
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function export_env()
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{
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export BOARD=`jq -r ".bsp.board" $CONF_FILE | tr 'A-Z' 'a-z'`
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export BSP_VER=`jq -r ".bsp.version" $CONF_FILE | tr 'A-Z' 'a-z'`
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export BSP_URL=`jq -r ".bsp.giturl" $CONF_FILE`
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export CROSS_COMPILE=`jq -r ".bsp.crosstool" $CONF_FILE`
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export JOBS=`cat /proc/cpuinfo | grep processor | wc -l`
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export ARCH=arm
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ROOTFS_SRC=rootfs
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ROOTFS_IMG=rootfs-${BOARD}.ubi
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export SRCS="rootfs"
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}
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function do_fetch()
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{
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cd $PRJ_PATH
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for src in $SRCS
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do
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if [ -d $src ] ; then
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pr_info "$src source code fetched already"
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continue
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fi
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pr_info "start fetch $src source code"
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mkdir -p $TARBALL_PATH
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# Download source code packet
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if [ ! -s $TARBALL_PATH/$src.tar.xz ] ; then
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wget $BSP_URL/at91/bsp/$BSP_VER/$src.tar.xz -P $TARBALL_PATH
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fi
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# decompress source code packet
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do_unpack $TARBALL_PATH/$src.tar.xz $ROOTFS_SRC
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done
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}
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function build_ubifs()
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{
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ubinize_cfg=ubinize.cfg
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ubimg_tmp=ubi.img
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# Rootfs partition size
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partition_size=100 # MiB
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# K9F2G08: 1 block=64 pages, 1 page = 2048
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BLOCK_PAGES=64
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PAGE_SIZE=2048
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ROOTFS_IMG=${ROOTFS_IMG}-p`expr $PAGE_SIZE \/ 1024`k
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# Logic Erase Block Size: UBI requires 2 minimum I/O units out of each Physical Erase Block (PEB) for overhead:
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# 1 for maintaining erase count information, and 1 for maintaining the Volume ID information.
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PEB_SIZE=`expr $PAGE_SIZE \* $BLOCK_PAGES`
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LEB_SIZE=`expr $PEB_SIZE - 2 \* $PAGE_SIZE `
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#UBI reserves 4 blocks space for management and bad PEB handling operations
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# 2 PEBs are used to store the UBI volume table
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# 1 PEB is reserved for wear-leveling purposes;
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# 1 PEB is reserved for the atomic LEB change operation;
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# a% of PEBs is reserved for handling bad EBs. The default for NAND is 1%
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PEB_CNT=`expr $partition_size \* 1024 \* 1024 / ${PEB_SIZE}`
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LEB_CNT=`expr $PEB_CNT - 4 - $PEB_CNT \/ 100 `
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#echo "Parition size ${partition_size}MiB and LEB=$LEB_CNT"
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set -x
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fakeroot mkfs.ubifs -F -d ${ROOTFS_SRC} -m ${PAGE_SIZE} -e ${LEB_SIZE} -c $LEB_CNT -o ${ubimg_tmp}
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set +x
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# vol_size smaller than the actual size of the partition to leave room for Ubifs internal data.
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# With "vol_type=dynamic", Ubifs will end up using the whole space automatically
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vol_size=`expr ${partition_size} \- 10`
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printf "[ubifs] \nmode=ubi \nimage=${ubimg_tmp} \nvol_id=0 \nvol_size=${vol_size}MiB\n" > $ubinize_cfg
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printf "vol_type=dynamic \nvol_name=rootfs \nvol_flags=autoresize\n" >> $ubinize_cfg
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#cat $ubinize_cfg
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set -x
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ubinize -o ${ROOTFS_IMG} -m ${PAGE_SIZE} -p ${PEB_SIZE} $ubinize_cfg
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set +x
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rm -f $ubimg_tmp $ubinize_cfg
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chmod a+x ${ROOTFS_IMG}
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}
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function do_modify()
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{
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cd $PRJ_PATH
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pr_info "start modify rootfs ..."
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cp patches/profile $ROOTFS_SRC/etc/profile
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cp patches/S50sshd $ROOTFS_SRC/etc/init.d/S50sshd
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}
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function do_build()
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{
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cd $PRJ_PATH
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mkdir -p $PRFX_PATH
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pr_info "start build rootfs image..."
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build_ubifs
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mv $ROOTFS_IMG $PRFX_PATH
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}
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function do_install()
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{
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cd $PRJ_PATH
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echo ""
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pr_info "install all images to '$PRFX_PATH'"
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cp $TOP_PATH/bootloader/install/* $PRFX_PATH
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cp $TOP_PATH/kernel/install/* $PRFX_PATH
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ls $PRFX_PATH && echo ""
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if [[ -n "$INST_PATH" && -w $INST_PATH ]] ; then
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pr_info "install rootfs to '$INST_PATH'"
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cp $PRFX_PATH/* $INST_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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for d in $SRCS
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do
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rm -rf $PRJ_PATH/$d
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done
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rm -rf $PRJ_PATH/tarballs
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rm -rf $PRFX_PATH
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}
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#+-------------------------+
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#| Shell script body entry |
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#+-------------------------+
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cd $PRJ_PATH
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export_env
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if [[ $# == 1 && $1 == -c ]] ;then
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pr_warn "start clean rootfs"
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do_clean
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exit;
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fi
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pr_warn "start build rootfs for ${BOARD}"
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do_fetch
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do_modify
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do_build
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do_install
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