#!/bin/bash
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#+--------------------------------------------------------------------------------------------
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#|Description: This shell script used download and compile busybox for ARM
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#| Author: GuoWenxue <guowenxue@gmail.com>
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#| ChangeLog:
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#| 1, Initialize 1.0.0 on 2011.04.12
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#+--------------------------------------------------------------------------------------------
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PRJ_PATH=`pwd`
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PREFIX_PATH=`pwd`/
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if [ -z $CROSSTOOL ] ; then
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CROSSTOOL=/opt/rpi/arm-bcm2708/arm-linux-gnueabihf/bin/arm-linux-gnueabihf-
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fi
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function msg_banner()
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{
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echo ""
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echo "+-----------------------------------------------------------------------"
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echo "| $1 "
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echo "+-----------------------------------------------------------------------"
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echo ""
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}
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function check_result()
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{
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if [ $? != 0 ] ; then
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echo ""
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echo "+-----------------------------------------------------------------------"
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echo "| $1 "
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echo "+-----------------------------------------------------------------------"
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echo ""
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exit ;
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fi
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}
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function export_cross()
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{
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# export cross toolchain
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export CC=${CROSSTOOL}gcc
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export AS=${CROSSTOOL}as
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export AR=${CROSSTOOL}ar
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export LD=${CROSSTOOL}ld
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export NM=${CROSSTOOL}nm
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export RANLIB=${CROSSTOOL}ranlib
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export OBJDUMP=${CROSSTOOL}objdump
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export STRIP=${CROSSTOOL}strip
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# export cross configure
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export CONFIG_CROSS=" --build=i686-pc-linux --host=arm-linux "
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# Clear LDFLAGS and CFLAGS
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export LDFLAGS=
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export CFLAGS=
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}
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function compile_busybox()
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{
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IMG_NAME=busybox
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SRC_NAME=busybox-1.27.1
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PACK_SUFIX=tar.bz2
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PATCH_FILE=${PRJ_PATH}/patch/${SRC_NAME}.patch
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if [ -f ${PREFIX_PATH}/${IMG_NAME} ] ; then
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return 0;
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fi
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msg_banner "Start cross compile $SRC_NAME "
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if [ ! -f ${SRC_NAME}.${PACK_SUFIX} ] ; then
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wget http://www.busybox.net/downloads/${SRC_NAME}.${PACK_SUFIX}
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check_result "ERROR: download ${SRC_NAME} failure"
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fi
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tar -xjf ${SRC_NAME}.${PACK_SUFIX}
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cd ${SRC_NAME}
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if [ -s $PATCH_FILE ]; then
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patch -p1 < $PATCH_FILE
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fi
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cp `dirname ${PATCH_FILE}`/busybox.config .config
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set -x
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#Modify the cross config in the configure file
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sed -i -e "s|^CONFIG_CROSS_COMPILER_PREFIX=.*|CONFIG_CROSS_COMPILER_PREFIX=\"$CROSSTOOL\"|g" .config
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#Modify the install path in the configure file
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sed -i -e "s|^CONFIG_PREFIX=.*|CONFIG_PREFIX=\"$INST_PATH\"|g" .config
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set +x
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make
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check_result "ERROR: compile ${SRC_NAME} failure"
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#install busybox
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${STRIP} ${IMG_NAME}
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cp ${IMG_NAME} ..
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cd -
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}
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export_cross
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compile_busybox
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