# Kernel config based on: arch/arm/configs/pxa986_lt023g_blackhawk_defconfig

pkgname="linux-samsung-lt023g"
pkgver=3.4.5
pkgrel=5
pkgdesc="Samsung Galaxy Tab 3 7.0 kernel fork"
arch="armv7"
_carch="arm"
_flavor="samsung-lt023g"
url="https://github.com/kumajaya/android_kernel_samsung_lt02"
license="GPL2"
options="!strip !check !tracedeps"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers 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_lt02"
_commit="c6fb6f677aa195b07348eb7777322ca956f9c44c"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/kumajaya/${_repository}/archive/${_commit}.tar.gz
	$_config
	compiler-gcc6.h
	timeconst_fix.patch
	455bd4c430b0c0a361f38e8658a0d6cb469942b5.patch
	418df63adac56841ef6b0f1fcf435bc64d4ed177.patch
"
builddir="$srcdir/${_repository}-${_commit}"

prepare() {
	default_prepare

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

	# Remove -Werror from all makefiles
	local i
	local makefiles="$(find . -type f -name Makefile)
		$(find . -type f -name Kbuild)"
	for i in $makefiles; do
		sed -i 's/-Werror-/-W/g' "$i"
		sed -i 's/-Werror//g' "$i"
	done

	# 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="41b0dc94d29e1ad75bcb309aebefc58302b5176be30cafd827b7f69b44805b84d44de93dfc363e671a421623ad2b6d264edbc74976106ba52f0c249d268622f1  linux-samsung-lt023g-c6fb6f677aa195b07348eb7777322ca956f9c44c.tar.gz
c7e3169c0bf785e3a96f6f6834956e3da0c20bfec4a113c7245f97f4af36b87b2ccab98c93dfc1c6bf2c2f115df3880d961fff18d6ee55d83ad15f67fbf8e38c  config-samsung-lt023g.armv7
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
7191d532df8f6a8bf64b5b5bcaa7343c8d1b844c891a67fc6d29f421903ddd46c3e779a6f5a5833a6a8f635d1582f5224fa795b3912b8b211a90ee561ad31469  timeconst_fix.patch
efd1641c0892fddb9c5feea3e49e534fed311b01f0576688b5af766e0160850822d0eb8e296b08c5f82b586d5d0336a98e8e86707ba9af7fcf36fc89f0b288eb  455bd4c430b0c0a361f38e8658a0d6cb469942b5.patch
5c080c27716d124616e4e684fc63bffb2665f00de06e894dfd78f58588feec2fec858fe8234b054061e3db14d28cb90fbac53f4b54c4fac5946d843cf038386c  418df63adac56841ef6b0f1fcf435bc64d4ed177.patch"
