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|
#!/usr/bin/env sh
# helper script: build elf files on build systems that use defconfig/kconfig
#
# Copyright (C) 2022 Alper Nebi Yasak <alpernebiyasak@gmail.com>
# Copyright (C) 2022 Ferass El Hafidi <vitali64pmemail@protonmail.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/>.
# you could probably build *linux* with this script!
[ "x${DEBUG+set}" = 'xset' ] && set -v
set -u -e
projectname="$(cat projectname)"
our_version="$(cat version)"
export LOCALVERSION="-${projectname}-${our_version}"
arch=""
cfgsdir=""
codedir=""
config=""
config_name=""
crossgcc_ada=""
elfdir=""
listfile=""
project=""
target=""
target_dir=""
tree=""
main()
{
[ $# -lt 1 ] && err "Project name not specified"
project="${1}"
elfdir="elf/${project}"
shift 1
cfgsdir="resources/${project}"
[ -d "${cfgsdir}" ] || err "directory, ${cfgsdir}, does not exist"
listfile="${cfgsdir}/build.list"
[ -f "${listfile}" ] || err "list file, ${listfile}, does not exist"
printf "Building %s binaries (elf files)\n" ${project}
# Build for all targets if no argument is given
if [ "$#" -eq 0 ]; then
for target_dir in "${cfgsdir}"/*; do
[ ! -d "${target_dir}/config/" ] && \
continue
set -- "$@" "${target_dir#${cfgsdir}/}"
done
fi
[ ! -d "${elfdir}" ] && \
mkdir -p ${elfdir}/
for x in "$@"; do
target="${x}"
if [ "${project}" = "coreboot" ]; then
./update blobs download ${target} || err "blobutil"
fi
build_defconfig || exit 1
done
printf "Done! The files are stored under %s/\n\n" ${elfdir}
}
build_defconfig()
{
handle_dependencies "${target}" || return 1
for y in "${target_dir}/config"/*; do
[ ! -f "${y}" ] && continue
config="${y}"
config_name="${config#$target_dir/config/}"
printf "build/defconfig/%s %s: build config %s\n" \
${project} ${target} ${config_name}
check_config || continue
build_elf
copy_elf
done
}
handle_dependencies()
{
target_dir="${cfgsdir}/${target}"
mkdir -p "${elfdir}/${target}"
tree="undefined"
arch="undefined"
[ ! -f "${target_dir}/target.cfg" ] && \
err "build/${project} ${target}: Missing target.cfg"
# Override the above defaults using target.cfg
. "${target_dir}/target.cfg" # source
[ "${tree}" = "undefined" ] && \
err "build/${project} %{target}: tree undefined"
[ "${arch}" = "undefined" ] && \
err "build/${project} ${target}: undefined cpu type"
codedir="${project}/${tree}"
[ -d "${codedir}" ] || \
./fetch_trees "${project}" "$target" || exit 1
# u-boot and coreboot are both compiled with coreboot's crossgcc
if [ "${project}" = "coreboot" ] || [ "${project}" = "u-boot" ]; then
check_cross_compiler || err "crossgcc fail"
fi
}
# set up cross-compiler (coreboot crossgcc) for u-boot and coreboot
# (seabios and grub currently use hostcc, not crossgcc)
check_cross_compiler()
{
[ "${crossgcc_ada}" = "y" ] || [ "${crossgcc_ada}" = "n" ] || \
crossgcc_ada="y"
[ "${crossgcc_ada}" != "y" ] && \
export BUILD_LANGUAGES=c
cbdir="coreboot/${tree}"
[ "${project}" != "coreboot" ] && \
cbdir="coreboot/default" # not u-boot (e.g. linux will use it)
[ "${project}" = "u-boot" ] && \
cbdir="coreboot/cros" # u-boot only used on coreboot/cros
# only true if not building coreboot:
[ -d "${cbdir}" ] || \
./fetch_trees coreboot ${cbdir#coreboot/} || \
err "check_cross_compiler"
if [ "${arch}" = "x86_32" ] || [ "${arch}" = "x86_64" ]; then
if [ ! -d "${cbdir}/util/crossgcc/xgcc/i386-elf/" ]; then
# Even for 64-bit machines, coreboot builds 32-bit ROM
# images, so we only need to worry about i386-elf
make -C "${cbdir}" crossgcc-i386 CPUS=$(nproc) || \
return 1
fi
case "$(uname -m)" in
x86*|i*86|amd64) : ;;
*) export CROSS_COMPILE=i386-elf- ;;
esac
elif [ "${arch}" = "ARMv7" ]; then
if [ ! -d "${cbdir}/util/crossgcc/xgcc/arm-eabi/" ]; then
make -C "${cbdir}" crossgcc-arm CPUS=$(nproc) || \
return 1
fi
case "$(uname -m)" in
arm|arm32|armv6*|armv7*) : ;;
*) export CROSS_COMPILE=arm-eabi- ;;
esac
elif [ "${arch}" = "AArch64" ]; then
if [ ! -d "${cbdir}/util/crossgcc/xgcc/aarch64-elf/" ]; then
make -C "${cbdir}" crossgcc-aarch64 CPUS=$(nproc) || \
return 1
fi
# aarch64 also needs armv7 toolchain for arm-trusted-firmware
if [ ! -d "${cbdir}/util/crossgcc/xgcc/arm-eabi/" ]; then
make -C "${cbdir}" crossgcc-arm CPUS=$(nproc) || \
return 1
fi
case "$(uname -m)" in
arm64|aarch64) : ;;
*) export CROSS_COMPILE=aarch64-elf- ;;
esac
fi
# we *must* ensure that u-boot's build system uses crossgcc first
export PATH="$(pwd)/${cbdir}/util/crossgcc/xgcc/bin:$PATH"
}
check_config()
{
[ ! -f "${config}" ] && \
err "build/${project} ${target}: configs missing"
dest_dir="${elfdir}/${target}/${config_name}"
for elftest in "${dest_dir}"/*; do
if [ -f "${elftest}" ]; then
printf "Build already exists, so skipping build\n" 1>&2
return 1
fi
done
mkdir -p "${dest_dir}"
printf "build/%s %s: building config %s).\n" \
${project} ${target} ${config_name}
}
build_elf()
{
make -C "${codedir}" distclean || err "build_elf"
cp "${config}" "${codedir}/.config" || err "build_elf"
make -C "${codedir}" silentoldconfig || \
make -C "${codedir}" oldconfig || : # don't error on oldconfig
[ "${project}" = "coreboot" ] && \
printf "%s\n" "${our_version}" > "${codedir}/.coreboot-version"
make -C "${codedir}" -j"$(nproc)" all || err "build_elf"
}
copy_elf()
{
for f in $(cat "${listfile}"); do
[ -f "${codedir}/$f" ] && cp "${codedir}/${f}" "${dest_dir}/"
done
make -C "${codedir}" distclean || \
make -C "${codedir}" clean || err "copy_elf"
}
err()
{
[ -z "${codedir}" ] || \
make -C "${codedir}" distclean \
|| make -C "${codedir}" clean || :
printf "build/defconfig error %s\n" "${1}" 1>&2
exit 1
}
main $@
|
