build-kernel

#!/bin/bash -ex
# Copyright 2010-2011 Daniel J Blueman <daniel@quora.org>

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# ensure the environment is safe
unset CFLAGS CXXFLAGS LDFLAGS

sudo apt-get -y install uboot-mkimage git-core

base=`pwd`
#kernelver=2.6.34
kernelver=3.1-rc9
kernelurl="git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git"
# kernelurl="git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git"
[ -e linux ] || git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git linux
cd linux
git checkout v$kernelver

export PATH=$base/toolchain/bin:$PATH
export ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- KCFLAGS='-mtune=cortex-a8 -mfpu=neon -Wa,-mfpu=neon -mfloat-abi=softfp'
PARALLEL=-j`getconf _NPROCESSORS_ONLN`

make distclean
cp $base/config-${kernelver}-igep .config
make oldconfig
make uImage
cp arch/arm/boot/uImage ${base}/uImage-$kernelver

# export INSTALL_MOD_PATH=<path to rootfs>
# make modules
# make modules_install