# APKBUILD based on linux-vanilla aport. Changes:
# - disabled module installation
# - add !check !tracedeps
# - add xz package (necessary to build)
#
# Kernel config based on: arch/arm/configs/ace_defconfig
# Changes:
# - apply patches to compile
# - enable devtmpfs (needed for udev -> touch support in weston)
# - disable ANDROID_PARANOID_NETWORK (removes network restrictions)
# - disable KINETO_GAN (caused problems when used with networkmanager, dhcpcd)
# - patch framebuffer to report refresh rate of 60Hz

_vendor=htc
_flavor=htc-ace
_config="config-${_flavor}.armv7"
_hash="887cd64b8361ac89ac56810460947a537112bdc9"

pkgname=linux-${_flavor}
pkgver=3.0.101
case $pkgver in
	*.*.*)  _kernver=${pkgver%.*};;
	*.*) _kernver=$pkgver;;
esac
pkgrel=14
arch="armv7"
pkgdesc="HTC Desire kernel from OpenDesireProject"
url="https://github.com/OpenDesireProject/android_kernel_htc_msm7x30"
depends=""
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev xz gcc6"
options="!strip !check !tracedeps"
install=
source="
	$pkgname-$_hash.tar.gz::https://github.com/OpenDesireProject/android_kernel_htc_msm7x30/archive/${_hash}.tar.gz
	$_config
	compiler-gcc6.h
	02_gpu-msm-fix-gcc5-compile.patch
	03_msm-fb-pixclock.patch
"
subpackages=""
license="GPL2"

_abi_release=${pkgver}
_carch="arm"

# 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

ksrcdir="$srcdir/android_kernel_htc_msm7x30-${_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/"

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

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

	echo "--[ Build kernel + modules ]--"
	make ARCH="$_carch" CC="${CC:-gcc}" \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-Alpine"
}

package() {
	echo "--[ Installing kernel ]--"
	install -Dm644 "$srcdir/build/arch/arm/boot/zImage" \
		"$pkgdir/boot/vmlinuz-$_flavor"

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

sha512sums="72fc35e1c7fe848ae5c1139176d4c45ef042d494403ab38e5fa98e3620fce3253ffc4bf7151738c7dd47967f2ad96b034a9365dc68f1c025aef87e985d5b1776  linux-htc-ace-887cd64b8361ac89ac56810460947a537112bdc9.tar.gz
916390761675fee6eebbaf53bdd1cceb1f4856cb24aaf55e801ece0c1c04169a59f119ea1162ff516073d42b0270efeeec56e11f734bd8d71030bceaca5cd7d5  config-htc-ace.armv7
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
2962e853aea3bec3cfea762584a6722023c5c9041994065a7ee75b6c4584121890d6dd1ac74317a2bb8069bff49583a9cccd73cca539665a76713465e05a2cf6  02_gpu-msm-fix-gcc5-compile.patch
6a4079863ca09f8bca1dd9c80487860a8f6fc6c20d18961bc54988bb1831517e36092605cc593e5e1531ebb80eb76d0b1a006c339a7e334dc0d85bd91b20c72a  03_msm-fb-pixclock.patch"
