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#!/bin/sh
#
# Kernel building helper script (C)2008 Openmoko, Inc
# Andy Green <andy@openmoko.org>
#
# Licensed under GPLv3 or later
#
#
# you need to run this from the top level source dir, but it creates all
# object files into a subdir given in the first argument, eg
#
# ./build GTA02
#
# this radically speeds up swapping between build contexts. Note the config
# for each build lives in the subdir.
PARALLEL=16
if [ -z "$1" ] ; then
echo "Specify the build subdir, eg, GTA02 which contains the .config"
echo "and will hold the object files"
exit 1
fi
mkdir -p $1
if [ -z "$CROSS_COMPILE" ]; then
export CROSS_COMPILE=/usr/local/openmoko/arm/bin/arm-angstrom-linux-gnueabi-
fi
make O=$1 ARCH=arm silentoldconfig
#
# figure out what we are building
#
PRODUCT=
if [ ! -z "`grep CONFIG_MACH_NEO1973_GTA01=y $1/.config`" ] ; then
START=30008000
PRODUCT=GTA01
fi
if [ ! -z "`grep CONFIG_MACH_NEO1973_GTA02=y $1/.config`" ] ; then
START=30008000
PRODUCT=GTA02
fi
if [ ! -z "`grep CONFIG_MACH_OM_3D7K=y $1/.config`" ] ; then
START=50008000
PRODUCT=OM_3D7K
fi
if [ ! -z "`grep CONFIG_MACH_SMDK6410=y $1/.config`" ] ; then
START=50008000
PRODUCT=SMDK6410
fi
if [ ! -z "`grep CONFIG_MACH_M800=y $1/.config`" ] ; then
START=30008000
PRODUCT=M800
fi
if [ -z "$PRODUCT" ] ; then
echo "Unable to figure out what we are building from the config"
exit 1
fi
#
# check that we are in a valid branch
#
if git branch | head -n1 | grep -q "* (no branch)"; then
cat <<EOF 1>&2
There is no branch in the local copy of the repository right now!
Hint: type git-branch, make sure you are in a valid branch and then try again
EOF
exit 1
fi;
#
# get the branch and head hash for the version we are building to
# allow source tracability
#
VERSION=
if [ -d .git ] ; then
HEAD=`git show --pretty=oneline | head -n1 | cut -d' ' -f1 | cut -b1-16`
BRANCH=`git branch | grep ^\* | cut -d' ' -f2 | sed s/-hist//g`
VERSION=-$PRODUCT\_$BRANCH
fi
echo $MKIMAGECMD
#
# actually make it
#
if make -j$PARALLEL O=$1 ARCH=arm CONFIG_DEBUG_SECTION_MISMATCH=y EXTRAVERSION=$VERSION; then
#
# if the build is happy, postprocess it by strip and with U-Boot header wrapper
# you can get mkimage from U-Boot or Qi build
#
${CROSS_COMPILE}objcopy -O binary -R .note -R .comment -S $1/arch/arm/boot/compressed/vmlinux $1/linux.bin
mkimage -A arm -O linux -T kernel -C none -a $START -e $START -n "OM $PRODUCT $BRANCH""_$HEAD" -d $1/linux.bin $1/uImage-$PRODUCT.bin
# we can see if it is an "moredrivers" build by looking for USB Eth gadget
# if it is then keep a stamped copy of last build
if [ ! -z "`grep CONFIG_USB_USBNET=y $1/.config`" ] ; then
rm -f $1/uImage-moredrivers-$PRODUCT*.bin $1/modules-$PRODUCT*.tar.gz
cp $1/uImage-$PRODUCT.bin $1/uImage-moredrivers$VERSION-$HEAD.bin
rm -rf $1/staging
mkdir -p $1/staging
if [ ! -z "$2" ] ; then
make O=$1 ARCH=arm modules_install INSTALL_MOD_PATH=staging
cd $1/staging
tar czf ../modules$VERSION-$HEAD.tar.gz .
cd ../..
fi
fi
exit 0
else
exit 1
fi
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