# Maintainer: Thiago Foganholi <thiagaoplusplus@outlook.com>
# Co-Maintainer: Newbyte <newbyte@disroot.org>
# Kernel config based on: arch/arm/configs/exynos_defconfig

pkgname=linux-postmarketos-exynos4
pkgver=5.14
pkgrel=1
pkgdesc="Mainline kernel fork for Samsung Exynos4 devices"
arch="armv7"
_carch="arm"
_flavor="${pkgname#linux-}"
url="https://kernel.org"
license="GPL-2.0-only"
options="!strip !check !tracedeps
	pmb:cross-native
	pmb:kconfigcheck-anbox
	pmb:kconfigcheck-nftables
	"
makedepends="bison busybox-static-$arch findutils flex gmp-dev installkernel mpc1-dev mpfr-dev openssl-dev perl xz"

# Source
_config="config-$_flavor.$arch"
case $pkgver in
	*.*.*)	_kernver=${pkgver%.0};;
	*.*)	_kernver=$pkgver;;
esac
source="
	https://cdn.kernel.org/pub/linux/kernel/v${_kernver%%.*}.x/linux-$_kernver.tar.xz
	$_config
	0001-ARM-decompressor-Flush-tlb-before-swiching-domain-0-.patch
	0001-power-supply-max17042_battery-use-VF-SOC-register-fo.patch
	0001-power_supply-max77693-change-the-supply-type-to-POWE.patch
	initramfs.list
	init
"
builddir="$srcdir/linux-$_kernver"

prepare_isorec() {
	# https://wiki.postmarketos.org/wiki/Boot_process#isorec
	cp -v /usr/$(arch_to_hostspec $arch)/bin/busybox.static \
		"$builddir"/usr/
	cp -v "$srcdir"/init "$builddir"/usr/
	cp -v "$srcdir"/initramfs.list "$builddir"/usr/
}

prepare() {
	default_prepare
	prepare_isorec
	cp -v "$srcdir/$_config" .config
}

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

package() {
	mkdir -p "$pkgdir"/boot
	make zinstall modules_install dtbs_install \
		ARCH="$_carch" \
		INSTALL_MOD_STRIP=1 \
		INSTALL_PATH="$pkgdir"/boot \
		INSTALL_MOD_PATH="$pkgdir" \
		INSTALL_DTBS_PATH="$pkgdir/usr/share/dtb"

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

sha512sums="
8e4f3ec3d36f774280f75dc7b004a43e09417af58f12e9c9f8348976659d4cfda7ad905f306f43fed66a27922e5c45db22e46bbfa7a0b9f365012380de3b6f64  linux-5.14.tar.xz
15fbc2cdc569b35e46a9c30ee49a6642f32284a606bb4e94177d0fd25036c799a345de4c9da5fadaef3c402c36748225f63f1a157fccff05c684d7dee667ff7e  config-postmarketos-exynos4.armv7
4bb111db4396a1981ad0883737c6594ca93701699846298b940d2ea202c666be0158a0f9ddc5b95b9147fa4cfe62639512ae78e9315f8d975b379ccc4e15da36  0001-ARM-decompressor-Flush-tlb-before-swiching-domain-0-.patch
166fe4dff1cdc451a9a32a5240adb93b534b8c576c5ac8d995401ebbf676385a6d8b5a6a21f556df588dee41cc4e5b8ede9eff3dd4c7835c0ca374882784d42e  0001-power-supply-max17042_battery-use-VF-SOC-register-fo.patch
e581eb55eb4cdfdac2cbe713a5044077a9b2f15881f0bed03cc89ecb1e38d19a1c9cfbaf53ee184c4a64b10bfe071e289f4fb2230e2420e4f0042f1f301a325c  0001-power_supply-max77693-change-the-supply-type-to-POWE.patch
aaff0332b90e1f9f62de1128cace934717336e54ab09de46477369fa808302482d97334e43a85ee8597c1bcab64d3484750103559fea2ce8cd51776156bf7591  initramfs.list
09f1f214a24300696809727a7b04378887c06ca6f40803ca51a12bf2176a360b2eb8632139d6a0722094e05cb2038bdb04018a1e3d33fc2697674552ade03bee  init
"