#!/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" $CONF_FILE`
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export DEF_CONFIG=${BOARD}_defconfig
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export IMG_KER=linuxrom-${BOARD}.itb
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export JOBS=`cat /proc/cpuinfo | grep processor | wc -l`
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export ARCH=arm
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export SRCS="linux-at91"
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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
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# do patch if patch file exist
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patch_file=$PRJ_PATH/patches/$BOARD/$src-$BSP_VER.patch
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if [ -s $patch_file ] ; then
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pr_warn "do patch for $src now..."
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cd $src
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patch -p1 < $patch_file
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cd -
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fi
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done
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}
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function build_kernel()
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{
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SRC=linux-at91
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pr_warn "start build $SRC"
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cd $PRJ_PATH/${SRC}
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if [ ! -f .config ] ; then
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make $DEF_CONFIG ARCH=${ARCH} CROSS_COMPILE=${CROSS_COMPILE}
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fi
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make -j${JOBS} ARCH=${ARCH} CROSS_COMPILE=${CROSS_COMPILE}
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pr_info "mkimage -f linuxrom-${BOARD}.its ${IMG_KER}"
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mkimage -f linuxrom-${BOARD}.its ${IMG_KER} > /dev/null
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chmod a+x ${IMG_KER}
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set -x
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cp ${IMG_KER} $PRFX_PATH/
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set +x
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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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build_kernel
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}
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function do_install()
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{
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cd $PRJ_PATH
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echo ""
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pr_info "linux kernel installed to '$PRFX_PATH'"
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ls $PRFX_PATH && echo ""
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if [[ -n "$INST_PATH" && -w $INST_PATH ]] ; then
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pr_info "install linux images to '$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 linux kernel"
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do_clean
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exit;
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fi
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pr_warn "start build linux kernelel for ${BOARD}"
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do_fetch
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do_build
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do_install
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