# Maintainer: Alexey Minnekhanov <alexeymin@postmarketos.org>
pkgname=lk2nd
pkgver=19.0
pkgrel=1
pkgdesc="Secondary little kernel (lk) bootloader for several Qualcomm devices"
arch="armv7 aarch64"
url="https://github.com/msm8916-mainline/lk2nd"
license="MIT AND BSD-3-Clause AND GPL-2.0-only"
makedepends="
	dtc
	dtc-dev
	gcc-arm-none-eabi
	python3
	py3-asn1-modules
	py3-libfdt
	py3-pycryptodome
"
source="
	$pkgname-$pkgver.tar.gz::https://github.com/msm8916-mainline/lk2nd/archive/refs/tags/$pkgver.tar.gz
	0001-doc-dts-msm8974-Remove-hammerhead-from-qcdtbs-and-do.patch
	0002-dts-msm8953-Fix-daisy-dts.patch
"
options="!check !archcheck !tracedeps !strip pmb:cross-native"
# This APKBUILD builds bare metal executable; options are very specific!
# * there are no tests (how do you even test the bootloader?);
# * binaries are "arch-independent"; aarch64 build also produces armv7 binary,
#   because ARM CPUs boot in 32-bit mode;
# * there are no depends for bootloader, it's a kernel and OS in one binary;
# * stripping of unused sections is done in lk2nd's own ld script.

subpackages="
	$pkgname-msm8916
	$pkgname-msm8952
	$pkgname-msm8952-xiaomi-land:msm8952_xiaomi_land
	$pkgname-msm8953
	$pkgname-msm8953-signed:msm8953_signed
"

if [ "$CARCH" = "armv7" ]; then
	subpackages="
		$subpackages
		$pkgname-msm8226
		$pkgname-msm8226-htc-memul:msm8226_htc_memul
		$pkgname-msm8974
		$pkgname-msm8974-lg-hammerhead:msm8974_lg_hammerhead
	"
fi

_build() {
	# This builds baremetal executable; distro-specific compiler flags
	#   and optimizations can't be set by build system.
	unset CFLAGS
	unset CXXFLAGS
	unset CPPFLAGS
	unset LDFLAGS
	unset CROSS_COMPILE
	unset CC
	unset CXX

	# ccache and crossdirect "gcc"s are in PATH, get rid of them too,
	#    redefine PATH to be bare minimum
	unset PATH
	export PATH=/usr/sbin:/usr/bin:/sbin:/bin

	local project="$1"; shift

	make LK2ND_VERSION="$pkgver-r$pkgrel-postmarketos" TOOLCHAIN_PREFIX=arm-none-eabi- "$@" "$project"
}

build() {
	_build lk2nd-msm8916
	_build lk2nd-msm8952
	_build lk2nd-msm8952 BOOTLOADER_OUT=xiaomi-land LK2ND_DTBS="" LK2ND_ADTBS="msm8937-xiaomi-land.dtb"
	_build lk2nd-msm8953
	_build lk2nd-msm8953 BOOTLOADER_OUT=msm8953-signed SIGN_BOOTIMG=1
	if [ "$CARCH" = "armv7" ]; then
		_build lk2nd-msm8974
		_build lk2nd-msm8974 BOOTLOADER_OUT=lg-hammerhead LK2ND_QCDTBS=""
		_build lk2nd-msm8226
		_build lk2nd-msm8226 BOOTLOADER_OUT=htc-memul SCRATCH_ADDR=0x20000000 SCRATCH_ADDR_512MAP=0x20000000 SCRATCH_SIZE_512MAP=0x10000000
	fi
}

package() {
	# main package is empty
	mkdir -p "$pkgdir"
}

msm8916() {
	install -Dm644 "$builddir"/build-lk2nd-msm8916/lk2nd.img -t \
		"$subpkgdir"/boot
}

msm8952() {
	install -Dm644 "$builddir"/build-lk2nd-msm8952/lk2nd.img -t \
		"$subpkgdir"/boot
}

msm8952_xiaomi_land() {
	install -Dm644 "$builddir"/xiaomi-land/build-lk2nd-msm8952/lk2nd.img -t \
		"$subpkgdir"/boot
}

msm8953() {
	install -Dm644 "$builddir"/build-lk2nd-msm8953/lk2nd.img -t \
		"$subpkgdir"/boot
}

msm8953_signed() {
	install -Dm644 "$builddir"/msm8953-signed/build-lk2nd-msm8953/lk2nd.img -t \
		"$subpkgdir"/boot
}

msm8974() {
	install -Dm644 "$builddir"/build-lk2nd-msm8974/lk2nd.img -t \
		"$subpkgdir"/boot
}

msm8974_lg_hammerhead() {
	install -Dm644 "$builddir"/lg-hammerhead/build-lk2nd-msm8974/lk2nd.img -t \
		"$subpkgdir"/boot
}

msm8226() {
	install -Dm644 "$builddir"/build-lk2nd-msm8226/lk2nd.img \
		"$subpkgdir"/boot/lk2nd.img
}

msm8226_htc_memul() {
	install -Dm644 "$builddir"/htc-memul/build-lk2nd-msm8226/lk2nd.img \
		"$subpkgdir"/boot/lk2nd.img
}

sha512sums="
5c7b69277b255b4e29849940b9eca90de8d21c5851719bdb519c1323844014ac6519995c43ed5ea874a64df5845305df3fcf56b141e782d77a4c2cac3deda82a  lk2nd-19.0.tar.gz
7aa4b7c98e990d3f2f44be2e24873829b75aa72b423966fb20b26d8c4fede9ce04495f8f37df54ae817297986bcb86ae7879174ca1d255c12b25656dbacaa62b  0001-doc-dts-msm8974-Remove-hammerhead-from-qcdtbs-and-do.patch
d30b03a65d535f9bab9986cec55cea1c0c797c7e2eca3660d072885e3d8d66dad7c97861c59dbe365b3a15699cc0b59dc35a363f6555541ab2e35660a89d0003  0002-dts-msm8953-Fix-daisy-dts.patch
"