# Kernel config based on: arch/arm/configs/lineageos_n5110_defconfig

pkgname="linux-samsung-n5110"
pkgver=3.0.101
pkgrel=4
pkgdesc="Samsung Galaxy Note 8.0 (Wi-Fi) kernel fork"
arch="armhf"
_carch="arm"
_flavor="samsung-n5110"
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="android_kernel_samsung_smdk4412"
_commit="b7ffe7f2aea2391737cdeac2a33217ee0ea4f2ba"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
	$_config
	0001-BACKPORT-random-introduce-getrandom-2-system-call.patch
	0002-BACKPORT-random-Wake-up-all-getrandom-2-callers-when.patch
	0003-BACKPORT-ARM-wire-up-getrandom-syscall.patch
	compiler-gcc6.h
"
builddir="$srcdir/${_repository}-${_commit}"

prepare() {
	default_prepare

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

	# Remove -Werror from all makefiles
	find . -type f -name Makefile -print0 | \
		xargs -0 sed -i 's/-Werror-/-W/g'
	find . -type f -name Makefile -print0 | \
		xargs -0 sed -i 's/-Werror//g'

	# 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="7e47ecfa6c3b2f4ac199ceed4103a00a577f9fa0002f5759df570f3c11a3436e53114e87a13e9efd27f2a2e17fcaab1be0666dffaa7d23699e700bee0d2afe33  linux-samsung-n5110-b7ffe7f2aea2391737cdeac2a33217ee0ea4f2ba.tar.gz
0d0219494704891d06c85929ed2d73db49c581874ad04c9e11f625dd06a499854a1ec813dd7073fb9bb88a91f17510ae168e38716986de324e156e45d6fb965e  config-samsung-n5110.armhf
9f931974afda5f82dab400758aa35decb97678ef698748c56dae4b2ede62fab34c3a7d6c16293602cfbb7a6a41d64ac3d25b8cb63251bef23475d50bfaae16a6  0001-BACKPORT-random-introduce-getrandom-2-system-call.patch
5d64e22eaeddc4a7fd4b99076bd2e29c02c214852663d6ddb30d304e9aba1f177f8c25e15f7892045cc132ef80e148952128536817fa8af6f03f3c7ee33d33a3  0002-BACKPORT-random-Wake-up-all-getrandom-2-callers-when.patch
8ce10fba0b10131de07a9c47544702b68c52f2e0a09eb2942044abf2e292cbfacbac0b6f6445306af46915064573037cfd66f99500bfa75551daa9376b1a6f77  0003-BACKPORT-ARM-wire-up-getrandom-syscall.patch
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h"