# Reference: <https://postmarketos.org/vendorkernel>
# Kernel config based on: arch/arm/configs/lineageos_FP2_defconfig

pkgname="linux-fairphone-fp2"
pkgver=3.4.0
pkgrel=10
pkgdesc="Fairphone 2 kernel fork"
arch="armv7"
_carch="arm"
_flavor="fairphone-fp2"
url="https://kernel.org"
license="GPL-2.0-only"
options="!strip !check !tracedeps"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev devicepkg-dev dtbtool xz gcc6"

# Compiler: GCC 6 (doesn't boot when compiled with newer versions)
if [ "${CC:0:5}" != "gcc6-" ]; then
	CC="gcc6-$CC"
	HOSTCC="gcc6-gcc"
	CROSS_COMPILE="gcc6-$CROSS_COMPILE"
fi

# Source
_repository="android_kernel_fairphone_msm8974"
_commit="284400aea4b9f8a3c97a34408f48d0971897ae02"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
	$_config
	gcc7-give-up-on-ilog2-const-optimizations.patch
	gcc8-fix-put-user.patch
	kernel-use-the-gnu89-standard-explicitly.patch
	0001-fix-video-argb-setting.patch
	0003-Fix-includes.patch
	0004-msm-fix-trace.patch
"
builddir="$srcdir/${_repository}-${_commit}"

prepare() {
	default_prepare
	downstreamkernel_prepare "$srcdir" "$builddir" "$_config" "$_carch" "$HOSTCC"
}

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

	# Generate master DTB (deviceinfo_bootimg_qcdt)
	dtbTool -s 2048 -p "scripts/dtc/" -o "arch/arm/boot/dt.img" "arch/arm/boot/"
}

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

	# Master DTB (deviceinfo_bootimg_qcdt)
	install -Dm644 "$builddir/arch/arm/boot/dt.img" \
		"$pkgdir/boot/dt.img"
}

sha512sums="6b440c5d087b790894606d4736af815204d9e6f682b7c1ba78f5852fa7aecd74cb276f4953d270f14c96d5418f4e2a83c5179c54d50e2e5afc9084f83ab54200  linux-fairphone-fp2-284400aea4b9f8a3c97a34408f48d0971897ae02.tar.gz
dafe4a3f2b6e8415c6114df20acc9619791fe80b3f2e772e4da685a80b8fe856f77f8bb038c992559f092e5ce38145c3b021db6d00c6f267ce3d85020225bde9  config-fairphone-fp2.armv7
77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch
197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch
ad0182a483791fc88e058838bc331b2f04a75ba291e763767babdb815efadfc3b4fda97e69e2e3f00a426cabea088e35297a92bd287592597d1e309be68ee92c  kernel-use-the-gnu89-standard-explicitly.patch
a48336bbfead6ad0c84d2fce0c40a3f5530aebdff356a6835cceaf59a50a6f860d2f8027703a92927955fbb18857ba78788e010d017bf67730f069b36e96fe87  0001-fix-video-argb-setting.patch
403d4999e98ddf73e083076c130a7c9de265096b7abeaabe1ba4305403202e651289a538d104cb37adf783fcecea009f3ed2b722d8640d8d3f12e6cbb8ebe97d  0003-Fix-includes.patch
432099f87fbcd66fa801ecaedb06715754198761c709cbb40b0dc8ffef14a6d6d5f0df27823229b731b18438c705c60c0ce44728b192d8e0f20c285bf761b7f3  0004-msm-fix-trace.patch"
