# Kernel config based on: arch/arm/configs/lineageos_d2_defconfig
# Changes:
# - Added DEVTEMPFS
# - Enabled SYSVIPC
# - Disabled ANDROID_PARANOID_NETWORK
# Patches:
# - All simply to allow it to compile under GCC6.

pkgname="linux-samsung-i747m"
pkgver=3.4.112
pkgrel=2
pkgdesc="Samsung Galaxy SIII (USA/Canada) kernel fork"
arch="armhf"
_carch="arm"
_flavor="samsung-i747m"
url="https://kernel.org"
license="GPL2"
options="!strip !check !tracedeps"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers xz elfutils-dev 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_d2"
_commit="716f00ee2e86adfd507842c5f193a738b57d3c49"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
	$_config
	compiler-gcc6.h
	00_fix_return_address.patch
	00_Input-lifebook-use-static-inline-instead-of-inline-i.patch
	00_Input-sentelic-use-static-inline-instead-of-inline.patch
	02_gpu-msm-fix-gcc5-compile.patch
"
builddir="$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
}

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7e1173b519c5cb1e175803dcd92bb089ec2e58f07b14db6d657032d7adc4c8e18ff51cd2fda5e4cd74c0cb3cc7829407be9ecbeaa23fb51dffbf1224cad58bfc  config-samsung-i747m.armhf
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
ea1d3b5a234fa565e3c1a792de48f4fc4e6023d281d303c8e319c7ef28edc5739ab0e4dea0139a41f0a5c7d03e27921ccaa214fd0ac5c72245a094ce60128864  00_fix_return_address.patch
5c49f6ff6773a7dc3067d2b1359648fe7a9f758b6c068d6fa69d9aaf24a291ba8022c960317d926aabc11d020a71b20c4e81a6fcf9b21ef66d9b6d065bae23e9  00_Input-lifebook-use-static-inline-instead-of-inline-i.patch
2d77d90b501aa8afbf81629e73fc0a2055b373942975f58277e43f398d0835b3dbbff4a1118137ec82873ba90a254fea87c1d73ba7708578f1779bd0b4c6ff2d  00_Input-sentelic-use-static-inline-instead-of-inline.patch
7be03a9e78b7ac330a54b1f00509caa0621a95c0c55901878ad757f9dd69cc05ba2c8b5ea987063ae1224f92c4d090d515fa5d369e7755181a4871b0d0f82881  02_gpu-msm-fix-gcc5-compile.patch"