#!/bin/bash
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# This shell script used auto download bootloader source code and do cross compile
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source ../scripts/setup_env.sh
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KERNEL_SRC=linux-imx
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patch_file=$(eval echo `jq -r ".KERNEL_SRC.PATCH" $JSON_CONF`)
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arch=$(eval echo `jq -r ".CONFIG.ARCH" $JSON_CONF`)
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defconf=$(eval echo `jq -r ".CONFIG.DEFCONF" $JSON_CONF`)
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drvpath=$(eval echo `jq -r ".CONFIG.DRVPATH" $JSON_CONF`)
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set -u
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set -e
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function do_fetch()
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{
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if [ -d $KERNEL_SRC ] ; then
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pr_warn "$KERNEL_SRC fetched already."
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return 0;
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fi
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do_fetch_json $JSON_CONF KERNEL_SRC $KERNEL_SRC
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rm -rf *.tar*
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}
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function do_patch()
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{
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cd ${KERNEL_SRC}
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if [ ! -s arch/arm/configs/$defconf -a -s $patch_file ] ; then
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pr_warn "Patch for ${KERNEL_SRC} source code"
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patch -p1 < $patch_file
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fi
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pr_warn "Modify cross compiler in Makefile: $CROSS_TOOL"
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sed -i -e "s|^CROSS_COMPILE=.*|CROSS_COMPILE?=${CROSS_TOOL}|g" Makefile
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cd ${PRJ_PATH}
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}
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function do_build()
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{
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pr_warn "Build for ${KERNEL_SRC} source code"
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cd ${KERNEL_SRC}
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make $defconf
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make -j ${JOBS}
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make modules_install INSTALL_MOD_PATH=$drvpath INSTALL_MOD_STRIP=1
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cd ${PRJ_PATH}
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}
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function do_install()
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{
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pr_warn "Install linux kernel image"
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cd ${KERNEL_SRC}
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do_install_json $JSON_CONF "INSTALL"
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cd ${PRJ_PATH}
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}
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function do_clean()
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{
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pr_warn "Clean ${KERNEL_SRC} source code"
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cd ${KERNEL_SRC}
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make distclean
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cd ${PRJ_PATH}
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}
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function gen_patch()
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{
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pr_warn "Clean ${KERNEL_SRC} source code"
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cd ${KERNEL_SRC}
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if [ -f .config ] ; then
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make savedefconfig
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mv defconfig arch/arm/configs/$defconf
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fi
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make distclean
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cd -
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mv ${KERNEL_SRC} ${KERNEL_SRC}-${BOARD}
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pr_warn "Fetch orignal source code"
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do_fetch
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pr_warn "Generate ${KERNEL_SRC} patch file"
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set +e
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diff -Nuar -x "include-prefixes" -x logo_linux_clut224.ppm ${KERNEL_SRC} ${KERNEL_SRC}-${BOARD} > $patch_file
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rm -rf ${KERNEL_SRC}
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mv ${KERNEL_SRC}-${BOARD} ${KERNEL_SRC}
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}
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function do_usage()
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{
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echo ""
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echo "Usage:"
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echo " $0 [-b] [-p] [-c] [-h]"
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echo " -b: download and build $PRJ_NAME"
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echo " -p: generate $PRJ_NAME patch file"
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echo " -c: clean the source code"
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echo " -h: show this help message"
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echo ""
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exit;
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}
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while getopts "bpch" OPTNAME
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do
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case "${OPTNAME}" in
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"b")
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break;
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;;
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"p")
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gen_patch
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exit;
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;;
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"c")
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do_clean
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exit;
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;;
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"h")
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do_usage
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exit;
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;;
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"*")
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do_usage
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exit;
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;;
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esac
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done
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#defualt do build action
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do_fetch
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do_patch
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do_build
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do_install
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exit;
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