# Kernel config based on: arch/arm/configs/sun6ismp_fiber_defconfig

pkgname="linux-infocus-flatfish"
pkgver=3.3.0
pkgrel=2
pkgdesc="InFocus New Tab F1 kernel fork"
arch="armhf"
_carch="arm"
_flavor="infocus-flatfish"
url="https://kernel.org"
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="kernel_flatfish"
_commit="b7e13780ed3ba80a5539a74d8704281cd6d3f5e6"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/mozilla-b2g/${_repository}/archive/${_commit}.tar.gz
	$_config
	compiler-gcc6.h
	01_timeconst_fix.patch
	02_fix_paranoid_network_disabled.patch
	03_fix_pm_build.patch
"
builddir="$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

	# The standby code needs to be built separately
	# Without -j1, this fails the build sometimes!
	make -j1 ARCH="$_carch" CC="${CC:-gcc}" \
		KDIR=$builddir \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS" \
		-C $builddir/arch/arm/mach-sun6i/pm/standby

	cd $builddir
	make ARCH="$_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

	# External modules install
	cd "$builddir"
	make ARCH="$_carch" CC="${CC:-gcc}" \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS" \
		INSTALL_MOD_PATH="$pkgdir" modules_install
}

sha512sums="9dad1d0226803566727cc34c44ec9240768a3e4e89f9a02dad0f9bf2f9ee6aecd17892c12d7b9f30e4bc522d67d06d4089d79f800de594c052760ad110d694d9  linux-infocus-flatfish-b7e13780ed3ba80a5539a74d8704281cd6d3f5e6.tar.gz
5749219232d11c4b07b14414df828b5ad517208c8f11c90db19c38ccc1ca49546dc17158f67de5f991a343d59ddade4066ac52b8ff36d2326a2749829d34bb6e  config-infocus-flatfish.armhf
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
a2bb98fb8d988bbb659cae00fbaca360828300e9b98b90aed5ee0dd839c3f740696df4094a9021b813cbada06820d115aabed581a47cdd2c947e8d853c20b145  01_timeconst_fix.patch
df62e03666313bb03d9a455eac875f170a55d378b6e56b847c1c6ff1ce5cfafcfdf1d7605754ca3c684840ea00357f9ec4c6621f6ff77377132a484b9258f6f7  02_fix_paranoid_network_disabled.patch
06463b3f376650f7a8bf15cad9d6b619656ed80603c4988c6454e650a4ab99062dd47c19099a3cd5d6e0f6f291476eada2e79fe2231082bc2fd4edad84f809fd  03_fix_pm_build.patch"