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#!/usr/bin/env sh
# helper script: builds U-Boot source code
#
# Copyright (C) 2022 Alper Nebi Yasak <alpernebiyasak@gmail.com>
# Copyright (C) 2023 Leah Rowe <leah@libreboot.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
[ "x${DEBUG+set}" = 'xset' ] && set -v
set -u -e
RET=0
pdir="payload/u-boot"
ubdir=""
arch=""
ubtree=""
config_name=""
board_dir=""
our_version="$(cat version)"
projectname="$(cat projectname)"
export LOCALVERSION="-${projectname}-${our_version}"
main()
{
printf "Building U-Boot payloads\n"
# Build for all boards if no argument is given
if [ "$#" -eq 0 ]; then
for board_dir in resources/u-boot/*; do
[ ! -d "${board_dir}/config/" ] && \
continue
set -- "$@" "${board_dir#resources/u-boot/}"
done
fi
[ ! -d "payload/" ] && \
mkdir -p payload/
[ ! -d "${pdir}" ] && \
mkdir -p ${pdir}/
for board in "$@"; do
build_uboot_payloads "${board}" || continue
done
printf "Done! U-Boot files are in %s/\n\n" ${pdir}
exit $RET
}
build_uboot_payloads()
{
board=${1}
handle_dependencies "${board}" || return 1
for config in "${board_dir}/config"/*; do
config_name="${config#$board_dir/config/}"
check_config "${board}" "${config}" || continue
build_uboot_elf "${config}"
printf "build/u-boot %s: build config %s\n" \
"${board}" "${config_name}"
done
}
handle_dependencies()
{
board=${1}
board_dir="resources/u-boot/${board}"
rm -rf "${pdir}/${board}"
mkdir -p "${pdir}/${board}"
ubtree="undefined"
arch="undefined"
if [ ! -f "${board_dir}/board.cfg" ]; then
printf "build/u-boot %s: Missing board.cfg.\n" \
"${board}"
RET=1
return 1
fi
# Override the above defaults using board.cfg
source "${board_dir}/board.cfg" # source
if [ "${ubtree}" = "undefined" ]; then
printf "build/u-boot %s: ubtree undefined\n" \
"${board}"
RET=1
return 1
fi
if [ "${arch}" = "undefined" ]; then
printf "build/u-boot %s: undefined cpu type\n" \
"${board}"
RET=1
return 1
fi
ubdir="u-boot/${board}"
if [ "${board}" != "${ubtree}" ]; then
ubdir="u-boot/${ubtree}"
fi
if [ ! -d "${ubdir}" ]; then
./download u-boot "$board"
fi
if [ ! -d "${ubdir}" ]; then
printf "build/u-boot %s: uboot download failed\n" \
"${board}"
RET=1
return 1
fi
}
check_config()
{
board=${1}
config=${2}
if [ ! -f "${config}" ]; then
printf "build/u-boot %s: configs missing\n" \
${board}
RET=1
return 1
fi
if [ "$config_name" = "default" ]; then
dest_dir="${pdir}/${board}"
else
dest_dir="${pdir}/${board}/${config_name}"
fi
mkdir -p "${dest_dir}"
printf "build/u-boot %s: building config %s).\n" \
${board} ${config_name}
}
build_uboot_elf()
{
config=${1}
make -C "${ubdir}" distclean
cp "${config}" "${ubdir}/.config"
make -C "${ubdir}" olddefconfig
make -C "${ubdir}" -j"$(nproc)" all
for f in "${ubdir}"/u-boot{,.bin,.dtb,.img,.itb,.elf}; do
if [ -f "$f" ]; then
mv "$f" "${dest_dir}/"
fi
done
make -C "${ubdir}" distclean
}
main $@
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