chromeos-base/chromeos-zephyr/chromeos-zephyr-9999.ebuild

# Copyright 2021 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE.makefile file.

EAPI=7

CROS_WORKON_USE_VCSID=1
CROS_WORKON_PROJECT=(
	"chromiumos/third_party/zephyr"
	"chromiumos/third_party/zephyr/cmsis"
	"chromiumos/third_party/zephyr/hal_stm32"
	"chromiumos/third_party/zephyr/nanopb"
	"chromiumos/third_party/zephyr/picolibc"
	"external/pigweed/pigweed/pigweed"
	"chromiumos/platform/ec"
)

CROS_WORKON_LOCALNAME=(
	"third_party/zephyr/main"
	"third_party/zephyr/cmsis"
	"third_party/zephyr/hal_stm32"
	"third_party/zephyr/nanopb"
	"third_party/zephyr/picolibc"
	"third_party/pigweed"
	"platform/ec"
)

CROS_WORKON_DESTDIR=(
	"${S}/zephyr-base"
	"${S}/modules/cmsis"
	"${S}/modules/hal_stm32"
	"${S}/modules/nanopb"
	"${S}/modules/picolibc"
	"${S}/modules/pigweed"
	"${S}/modules/ec"
)

CROS_WORKON_EGIT_BRANCH=(
	"main"
	"chromeos-main"
	"chromeos-main"
	"main"
	"main"
	"upstream/main"
	"main"
)

inherit cros-workon cros-zephyr-utils coreboot-sdk

DESCRIPTION="Zephyr based Embedded Controller firmware"
KEYWORDS="~*"

BDEPEND="
	cross-embedded-arm-eabi/coreboot-sdk
	cross-embedded-riscv-elf/coreboot-sdk
"

MERGED_DB="tokens.bin"
PROJECT_DB="database.bin"
PW_ROOT="${S}/modules/pigweed"

# cros-zephyr-compile will generate individual project token databases.
# Find all individual project token databases and merge them into single
# merged database.
merge_token_db() {
	if [[ -n $(find build -name "${PROJECT_DB}") ]]; then
		find build -name "${PROJECT_DB}" -exec \
			"${PW_ROOT}"/pw_tokenizer/py/pw_tokenizer/database.py \
			create --type binary --force --database "build/${MERGED_DB}" {} + \
			|| die
	fi
}

src_compile() {
	cros-zephyr-compile zephyr-ec
	merge_token_db
}

src_install() {
	local firmware_name project
	local root_build_dir="build"

	while read -r firmware_name && read -r project; do
		if [[ -z "${project}" ]]; then
			continue
		fi

		# Do not strip elf files so debug symbols are available
		# in the firmware_from_source.tar.bz2 bundles from builders.
		dostrip -x "/firmware/${firmware_name}"/zephyr.{rw,ro}.elf

		insinto "/firmware/${firmware_name}"
		doins "${root_build_dir}/${project}"/output/*

		# Install token database to projects that enabled tokenization.
		if [[ -n $(find "${root_build_dir}/${project}" -name "${PROJECT_DB}") ]]; then
			# Install database into firmware binary output for release handling.
			doins "${root_build_dir}/${MERGED_DB}"
			# Install database into DUT location for timberslide detokenizing.
			insinto "/usr/share/cros_ec/"
			doins "${root_build_dir}/${MERGED_DB}"
		fi
	done < <(cros_config_host "get-firmware-build-combinations" zephyr-ec || die)
}