#!/bin/sh
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# Descripion: This shell script used to choose a linux kernel version to cross compile
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# Author: GuoWenxue<guowenxue@gmail.com>
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# ChangeLog:
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# 1, Version 1.0.0(2011.04.01), initialize first version
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#
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PWD=`pwd`
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PACKET_DIR=$PWD
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PATCH_DIR=$PWD/patch
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INST_PATH=$PWD/../../bin
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SRC_NAME=linux-3.0
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ARCH=s3c6410
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#unset ARCH
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#===============================================================
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# Functions forward definition =
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#===============================================================
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function disp_banner()
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{
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echo ""
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echo "+------------------------------------------+"
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echo "| Build $SRC_NAME for $ARCH "
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echo "+------------------------------------------+"
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echo ""
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}
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sup_ver=("" "linux-3.0")
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function select_version()
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{
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echo "Current support linux kernel version:"
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i=1
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len=${#sup_ver[*]}
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while [ $i -lt $len ]; do
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echo "$i: ${sup_ver[$i]}"
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let i++;
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done
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echo "Please select: "
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index=
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read index
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SRC_NAME=${sup_ver[$index]}
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}
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sup_arch=("" "s3c6410")
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function select_arch()
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{
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echo "Current support S3C64X0 ARCH:"
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i=1
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len=${#sup_arch[*]}
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while [ $i -lt $len ]; do
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echo "$i: ${sup_arch[$i]}"
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let i++;
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done
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echo "Please select: "
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index=
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read index
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ARCH=${sup_arch[$index]}
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}
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#===============================================================
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# Script excute body start =
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#===============================================================
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# If not define default version, then let user choose a one
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if [ -z $SRC_NAME ] ; then
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select_version
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fi
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# If don't set the ARCH, then select one
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if [ -z $ARCH ] ; then
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select_arch
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fi
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if [ -z "$CROSS" ] ; then
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CROSS=/opt/buildroot-2012.08/arm1176jzfs/usr/bin/arm-linux-
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fi
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# If $SRC_NAME not set, then abort this cross compile
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if [ -z $SRC_NAME ] ; then
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echo "ERROR: Please choose a valid version to cross compile"
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exit 1;
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fi
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disp_banner #Display this shell script banner
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# Check patche file exist or not
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PATCH_FILE=$PATCH_DIR/$SRC_NAME-${ARCH}.patch
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if [ ! -f $PATCH_FILE ] ; then
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echo "ERROR:$SRC_NAME patch file doesn't exist!"
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echo "PATH: \"$PATCH_FILE\""
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exit
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fi
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# Check original source code packet exist or not
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SRC_ORIG_PACKET=$PACKET_DIR/$SRC_NAME.tar.bz2
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if [ ! -s $SRC_ORIG_PACKET ] ; then
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echo "========================================================================="
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echo "ERROR:$SRC_NAME source code patcket doesn't exist."
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echo "PATH: \"$SRC_ORIG_PACKET\""
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echo ""
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MAJOR=`echo $SRC_NAME | awk -F "-" '{print $2}' | awk -F "." '{print $1}'`
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if [ $MAJOR == 3 ] ; then
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DL_ADDR=http://www.kernel.org/pub/linux/kernel/v3.x/$SRC_NAME.tar.bz2
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elif [ $MAJOR == 2 ] ; then
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DL_ADDR=http://www.kernel.org/pub/linux/kernel/v2.6/$SRC_NAME.tar.bz2
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fi
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echo "Download $DL_ADDR now..."
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echo "========================================================================="
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wget $DL_ADDR
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if [ ! -s $SRC_ORIG_PACKET ] ; then
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echo "Download $DL_ADDR failure, exit now..."
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exit
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fi
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fi
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#decompress the source code packet and patch
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echo "* Decompress the source code patcket and patch now... *"
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if [ -d $SRC_NAME ] ; then
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rm -rf $SRC_NAME
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fi
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if [ ! -d $INST_PATH ] ; then
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mkdir -p $INST_PATH
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fi
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#Remove old source code
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tar -xjf $SRC_ORIG_PACKET
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#Start to cross compile the source code and install it now
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cd $SRC_NAME
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patch -p1 < $PATCH_FILE
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cp .cfg-$ARCH .config
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#Modify the cross tool in Makefile
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line=`sed -n '/CROSS_COMPILE ?= /=' Makefile`
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sed -i -e ${line}s"|.*|CROSS_COMPILE ?= $CROSS|" Makefile
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make
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set -x
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cp -af linuxrom-$ARCH.bin $INST_PATH
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cp -af linuxrom-$ARCH.bin /tftp
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cd -
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