# Copyright 2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

DESCRIPTION="Trusted Firmware A's BL31"
HOMEPAGE="https://www.trustedfirmware.org/"
SRC_URI="https://git.trustedfirmware.org/TF-A/${PN}.git/snapshot/${P}.tar.gz -> ${P}.tar.gz"

LICENSE="BSD"
SLOT="0"
KEYWORDS="-* arm64"
RDEPEND="!sys-firmware/trusted-firmware-a-bin"

TFA_ALL_PLATFORMS=( rk3288 rk3399 sun50i_a64 )

IUSE="${TFA_ALL_PLATFORMS[@]/#/tfa_platforms_}"
REQUIRED_USE="^^ ( ${IUSE} )"

tfa_get_plat() {
	local plat
	for plat in "${TFA_ALL_PLATFORMS[@]}"; do
		if use "tfa_platforms_${plat}"; then
			echo ${plat}
			return 0
		fi
	done
	
	die "no tfa_platforms_ set"
}

src_compile() {
	which arm-none-eabi-gcc || die "arm-none-eabi toolchain not found!"
	unset CFLAGS CXXFLAGS CPPFLAGS LDFLAGS
	emake PLAT=$(tfa_get_plat)
}

src_install() {
	local plat=$(tfa_get_plat)
	insinto /usr/share/${PN}/${plat}
	doins build/${plat}/release/bl31/bl31.elf
}