# Reference: https://wiki.postmarketos.org/wiki/Lenovo_Tab2_A10-30L_(lenovo-achilles)
# Kernel config extracted from recovery (https://gitlab.com/aleiepure/lenovo_achilles_kernel)

pkgname=linux-lenovo-achilles
pkgver=3.10.49
pkgrel=0
pkgdesc="Lenovo Tab2 A10-30L kernel fork"
arch="armv7"
_carch="arm"
_flavor="lenovo-achilles"
url="https://kernel.org"
license="GPL-2.0-only"
options="!strip !check !tracedeps pmb:cross-native"
makedepends="
	bash
	bc
	bison
	devicepkg-dev
	dtbtool
	findutils
	flex
	openssl-dev
	perl
	linux-headers
	gcc6
"

# Compiler: GCC 6 (doesn't boot when compiled with newer versions)
if [ "${CC:0:5}" != "gcc6-" ]; then
	CC="gcc6-$CC"
	HOSTCC="gcc6-gcc"
	CROSS_COMPILE="gcc6-$CROSS_COMPILE"
fi

# Source
_repository="lenovo_achilles_kernel"
_commit="e123f2de60d1c980ec4ecdb266bf030bcfdb065e"
_config="config-$_flavor.$arch"
source="
	$pkgname-$_commit.tar.gz::https://gitlab.com/aleiepure/$_repository/-/archive/$_commit.tar.gz
	$_config
	01-fix_return_address.patch
	02-fix_hfi_packetization.patch
	03-fix_blank_display.patch
	04-fix_netfilter_makefile.patch
	05-fix_yylloc.patch
	gcc7-give-up-on-ilog2-const-optimizations.patch
	gcc8-fix-put-user.patch
	kernel-use-the-gnu89-standard-explicitly.patch
"
builddir="$srcdir/$_repository-$_commit"
_outdir="out"

prepare() {
	default_prepare
	. downstreamkernel_prepare
}

build() {
	unset LDFLAGS

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

	make O="$_outdir" ARCH="$_carch" CC="${CC:-gcc}" \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS" \
		modules

	# Master DTB (deviceinfo_bootimg_qcdt)
	dtbTool -o "$_outdir/arch/$_carch/boot"/dt.img \
		"$_outdir/arch/$_carch/boot/"
}

package() {
	downstreamkernel_package "$builddir" "$pkgdir" "$_carch" \
		"$_flavor" "$_outdir"

	make O="$_outdir" ARCH="$_carch" CC="${CC:-gcc}" \
		INSTALL_MOD_PATH="$pkgdir" \
		modules_install

	install -Dm644 "$_outdir/arch/$_carch/boot"/dt.img \
		"$pkgdir"/boot/dt.img
}

sha512sums="
93677bc7a789665e83e1cc8b0d0ed98fcd3e6336f147c8cf05fceaa5fe7371485bc9cba42552e2a8ba5b22599d2961e44dc301b7e442ffb39ef55b2270d9868c  linux-lenovo-achilles-e123f2de60d1c980ec4ecdb266bf030bcfdb065e.tar.gz
99b3a1b84a9403c600882e61d1176becb4b7bd72383601512a822526784043524350ffba8b97d65d4740ec2f9e507dc1f9c89c632477d3032bcb1f63dcca7614  config-lenovo-achilles.armv7
02df3e4071c7870938422f68da54f997557634acb6ac57fddc30f9437d5993d0b197d53a7c99536d0e92c54d563c3881a455f0b14e529d43638f0c52f404a0f5  01-fix_return_address.patch
ce59712aa8ee0fd748ad3b63d20955500544d8852b985e6d3958adcd8039ac9f8e56e282f9238af06ab1d99ceb750003c4fc73eaba580a7f1545d69e1d0b0b2a  02-fix_hfi_packetization.patch
34f6f12772c91cd9536d85c0b728ed4b6be623e912bc09b6ea8188d42a6cae1867e8fc716bc17bf2b4bd1632bccfe1971ef1bc2c9a225dd34c37196f1d6e1dac  03-fix_blank_display.patch
75dfd14bccd38740603e65733c780ebfa77d730d3eb0d0779d294104e815b420b1145cd541350c77c27e4938a76663ea7145d2fcb0087e2a23416a0532894173  04-fix_netfilter_makefile.patch
13032010c1ce7e9dd05fa97c91ace4a78635f261f7756b572b9a452b2ac96dfd481a1f49c06022b61c4415bebe71e3c564179e3294110534e2c94a8c52c994a0  05-fix_yylloc.patch
77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch
197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch
ad0182a483791fc88e058838bc331b2f04a75ba291e763767babdb815efadfc3b4fda97e69e2e3f00a426cabea088e35297a92bd287592597d1e309be68ee92c  kernel-use-the-gnu89-standard-explicitly.patch
"