# Kernel config based on: arch/arm/configs/notle_defconfig

pkgname="linux-google-glass"
pkgver=3.4.83
pkgrel=1
pkgdesc="Google Glass kernel fork"
arch="armhf"
_carch="arm"
_flavor="google-glass"
url="https://kernel.org"
license="GPL2"
options="!strip !check !tracedeps"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev gcc6"

# Compiler: this kernel was only tested with GCC6. Feel free to make a merge
# request if you find out that it is booting working with newer GCCs as
# well. See <https://postmarketos.org/vendorkernel> for instructions.
if [ "${CC:0:5}" != "gcc6-" ]; then
	CC="gcc6-$CC"
	HOSTCC="gcc-6"
	CROSS_COMPILE="gcc6-$CROSS_COMPILE"
fi

# Source
_repository="factory-kernel"
_commit="1091b53a0b5e20d23a8447161e181e2a53e944de"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/GlassHack/${_repository}/archive/${_commit}.tar.gz
	$_config
	compiler-gcc6.h
"
builddir="$srcdir/${_repository}-${_commit}"

prepare() {
	default_prepare

	# gcc6 support
	cp -v "$srcdir/compiler-gcc6.h" "$builddir/include/linux/"

	# Remove -Werror from all makefiles
	find . -type f -name Makefile -print0 | \
		xargs -0 sed -i 's/-Werror-/-W/g'
	find . -type f -name Makefile -print0 | \
		xargs -0 sed -i 's/-Werror//g'

	# Prepare kernel config ('yes ""' for kernels lacking olddefconfig)
	cp "$srcdir"/$_config "$builddir"/.config
	yes "" | make ARCH="$_carch" HOSTCC="$HOSTCC" oldconfig
}

build() {
	unset LDFLAGS
	make ARCH="$_carch" CC="${CC:-gcc}" \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
}

package() {
	# kernel.release
	install -D "$builddir/include/config/kernel.release" \
		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"

	# zImage (find the right one)
	cd "$builddir/arch/$_carch/boot"
	_target="$pkgdir/boot/vmlinuz-$_flavor"
	for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
		[ -e "$_zimg" ] || continue
		msg "zImage found: $_zimg"
		install -Dm644 "$_zimg" "$_target"
		break
	done
	if ! [ -e "$_target" ]; then
		error "Could not find zImage in $PWD!"
		return 1
	fi
}

sha512sums="b98916d6cc745115e89be35158b4cf0e025e73261a8f56302e9b74d8a7b597df8bdef1ee4ce8503dfc4fc94be16b91227b358cba7c5bc1fabde182876f6becf7  linux-google-glass-1091b53a0b5e20d23a8447161e181e2a53e944de.tar.gz
5cbb2133c06bf1cb932be69e89705c6e41784ca2becb89314e06a26eedc7efb25686160fe278da8c5ed986b3bed5a3a7d779406b4a047184fde2df5ab4a89e06  config-google-glass.armhf
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h"