# Kernel config based on: arch/arm/configs/bcm21664_hawaii_ss_kylevess_rev00_defconfig
pkgname="linux-samsung-kylevess"
pkgver=3.4.5
pkgrel=6
pkgdesc="Samsung Trend Lite kernel fork"
arch="armhf"
_carch="arm"
_flavor="samsung-kylevess"
url="https://kernel.org"
license="GPL2"
options="!strip !check !tracedeps"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev xz 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="gcc6-gcc"
	CROSS_COMPILE="gcc6-$CROSS_COMPILE"
fi

# Source
_repository="kernel_samsung_kylevess_f2fs"
_commit="17667b5c69eaf3db40ca2040d965d14cfd09a427"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/opensource591/${_repository}/archive/${_commit}.tar.gz
	$_config
	compiler-gcc6.h
	00_return_address.patch
	01_patch_lifebook_detect.patch
	02_patch_fsp_detect.patch
	03_fix_to_state.patch
"
builddir="$srcdir/${_repository}-${_commit}"

prepare() {
	default_prepare

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

	# Remove -Werror from all makefiles
	local i
	local makefiles="$(find . -type f -name Makefile)
		$(find . -type f -name Kbuild)"
	for i in $makefiles; do
		sed -i 's/-Werror-/-W/g' "$i"
		sed -i 's/-Werror//g' "$i"
	done

	# 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="ef1881e26be013a4f58eac86c884b3f2d50e7b742e97d7655832865089a4776e83b19df64ecda332a4cb44c5ce8006679428b22248590be881948821c45f469f  linux-samsung-kylevess-17667b5c69eaf3db40ca2040d965d14cfd09a427.tar.gz
60e4b9a3745d9ad99469aea3a27383f38e24e441f05c6242a3cf4bbc862a9d15b6f9f8a01df9fd83ea3a135fbfe4b0f8544dcf003603e740e5840abf80048087  config-samsung-kylevess.armhf
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
c40eaa11547f5bc2b1ff965506bdfe3015ff16e4b5ad9ccb3b8134ceafd1d32407c4ef2b213e02e036ce1e9bdcbfe768dff7d4b054bec77705a176c1f783b6f5  00_return_address.patch
36418ec3d31d1d6d9915afcf3d38d4549aeeb49c3825414b51b67db7a1ab6482f22d2723da3b258b671956809949278a51f6507df9b0052aec0bd0c59f56919a  01_patch_lifebook_detect.patch
9da951bb0391564f33bdb0a97c339997eda7b15ec2f160da8af237cc87c233b8c3dcdc1a12759e04d69d075ae9b0afaf726101ef356e788d7f4606a03db2e248  02_patch_fsp_detect.patch
7bc5894a412d45e45e308915dbe3a964419f443f149ef390d2f09151dd15ca86767c7fdd4e927cfb602d6d455755d4941d68a9f139a1cd3f89f0d90088dafde4  03_fix_to_state.patch"