# APKBUILD based on linux-vanilla aport. Changes:
# - disabled module installation
# - add !check !tracedeps
# - package: just install zImage-dtb and kernel.release, because the kernel config
#	does not generate modules or dtb files
# - do not create -dev subpackage (makes no sense without module support)
#
# Kernel config changes, based on: arch/arm/configs/aosp_rhine_amami_defconfig
# - enable devtmpfs (needed for udev -> touch support in weston)
# - change compression from CONFIG_KERNEL_LZMA=y to
#	CONFIG_KERNEL_GZIP=y (so it works with busybox)
# - disable proprietary graphics driver

_vendor=sony
_flavor=sony-amami
_hash="d78970c1afd9fad52cb4402c7bcb9701e8a06d41"
_config="config-${_flavor}.armhf"

pkgname=linux-${_flavor}
pkgver=3.10.84
case $pkgver in
	*.*.*)  _kernver=${pkgver%.*};;
	*.*) _kernver=$pkgver;;
esac
pkgrel=6
arch="armhf"
pkgdesc="Sony Xperia Z1 Compact kernel"
url="https://github.com/sonyxperiadev/kernel"
depends="postmarketos-mkinitfs"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev"
options="!strip !check !tracedeps"
install=
source="
	$pkgname-$_hash.tar.gz::https://github.com/sonyxperiadev/kernel/archive/${_hash}.tar.gz
	$_config
	compiler-gcc6.h
	mdss_fb_refresh_rate.patch
"
subpackages=""
license="GPL2"

_abi_release=${pkgver}
_carch="arm"
HOSTCC="${CC:-gcc}"
HOSTCC="${HOSTCC#${CROSS_COMPILE}}"

ksrcdir="$srcdir/kernel-${_hash}"

prepare() {
	local _patch_failed=
	cd "$ksrcdir"

	# first apply patches in specified order
	for i in $source; do
		case $i in
		*.patch)
			msg "Applying $i..."
			if ! patch -s -p1 -N -i "$srcdir"/$i; then
				echo $i >>failed
				_patch_failed=1
			fi
			;;
		esac
	done

	if ! [ -z "$_patch_failed" ]; then
		error "The following patches failed:"
		cat failed
		return 1
	fi

	# gcc6 support
	cp -v "$srcdir/compiler-gcc6.h" "$ksrcdir/include/linux/" || return 1

	mkdir -p "$srcdir"/build
	cp "$srcdir"/$_config "$srcdir"/build/.config || return 1
	make -C "$ksrcdir" O="$srcdir"/build ARCH="$_carch" HOSTCC="$HOSTCC" \
		silentoldconfig
}



# this is so we can do: 'abuild menuconfig' to reconfigure kernel
menuconfig() {
	cd "$srcdir"/build || return 1
	make ARCH="$_carch" menuconfig
	cp .config "$startdir"/$_config
}

build() {
	cd "$srcdir"/build
	unset LDFLAGS

	make ARCH="$_carch" CC="${CC:-gcc}" \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-Alpine" \
		|| return 1
}

package() {
	install -Dm644 "$srcdir/build/arch/arm/boot/zImage-dtb" \
		"$pkgdir/boot/vmlinuz-$_flavor"

	install -D "$srcdir/build/include/config/kernel.release" \
		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
}

sha512sums="cd4af23a9a6898e7f1807758f8ba0c9e99b0e31e4452df2fe05632da1f28366773e403d17d81872ff00d78e620d079aa510759b6763b13e6e74392be0d726ea3  linux-sony-amami-d78970c1afd9fad52cb4402c7bcb9701e8a06d41.tar.gz
dd345d9f7f499ecbba274c274351fe174cd189f000b3459ca7e7e2d234740bc1fc0ed5ce69eaac8509f5867efd2699df35d64b03d1643da01ba1401e599bbaa7  config-sony-amami.armhf
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
a8c955bf718f155011e980f3d0948be98e1fee5649f418299a4851780543019daf7afa406aa7b0829375645107e4e6fbf241026b0cabe2b2ac895a47df83d2d8  mdss_fb_refresh_rate.patch"