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author | Alper Nebi Yasak <alpernebiyasak@gmail.com> | 2022-08-26 13:27:23 +0300 |
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committer | Alper Nebi Yasak <alpernebiyasak@gmail.com> | 2022-08-28 13:09:52 +0300 |
commit | 1dc05e4066c4984df4a16e17177cb0e4b26bab7b (patch) | |
tree | 7202b6145f69368ac6c27e88d4d51d6a4f5ec84b /resources/scripts/build/payload/u-boot | |
parent | cf295741650aaffcb03866ab15a0c7175c3dc882 (diff) |
build/payload: Add helper script to build U-Boot as payload
This enables building U-Boot for boards which have config files in
resources/u-boot, and copying built files that could be usable to make
coreboot payloads. Right now, there is no such board in this repo.
The most important file here is "u-boot.elf", which is a combination of
the U-Boot binary and the appropriate device-tree file for the board.
Building this needs CONFIG_REMAKE_ELF=y on the U-Boot part, and using
this with CONFIG_PAYLOAD_ELF=y on the coreboot build works fine.
Note that this isn't enough to make U-Boot-only releases, since
low-level prerequisites like arm-trusted-firmware aren't passed in to
the U-Boot build system. Coreboot builds its own copy of TF-A and sets
it up on the board, so using these U-Boot builds as payloads should
still work.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Diffstat (limited to 'resources/scripts/build/payload/u-boot')
-rwxr-xr-x | resources/scripts/build/payload/u-boot | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/resources/scripts/build/payload/u-boot b/resources/scripts/build/payload/u-boot new file mode 100755 index 00000000..6c94a441 --- /dev/null +++ b/resources/scripts/build/payload/u-boot @@ -0,0 +1,146 @@ +#!/usr/bin/env bash + +# helper script: builds U-Boot source code +# +# Copyright (C) 2020, 2021 Leah Rowe <info@minifree.org> +# Copyright (C) 2021 Vitali64 <vitali64pmemail@protonmail.com> +# Copyright (C) 2022 Alper Nebi Yasak <alpernebiyasak@gmail.com> +# +# 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${DEBUG+set}" = 'xset' ] && set -v +set -u -e + +RET=0 + +# Build U-Boot +# --------------------------------------------------------------------- + +printf "Building U-Boot payloads\n" + +# Build for all boards if no argument is given +if [ "$#" -eq 0 ]; then + for board_dir in resources/u-boot/*; do + if [ -d "${board_dir}/config/" ]; then + set -- "$@" "${board_dir#resources/u-boot/}" + fi + done +fi + +[ ! -d "payload/" ] && mkdir -p payload/ +[ ! -d "payload/u-boot" ] && mkdir -p payload/u-boot/ + +# Appends additional version info to U-Boot +our_version="$(cat version)" +projectname="$(cat projectname)" +export LOCALVERSION="-${projectname}-${our_version}" + +for board in "$@"; do + board_dir="resources/u-boot/${board}" + rm -rf "payload/u-boot/${board}" + mkdir -p "payload/u-boot/${board}" + + ubtree="undefined" + arch="undefined" + + if [ ! -f "${board_dir}/board.cfg" ]; then + printf "%s: Target %s does not have a board.cfg. Skipping build.\n" \ + "build/payload/u-boot" "${board}" + RET=1 + continue + fi + + # Override the above defaults using board.cfg + source "${board_dir}/board.cfg" + + if [ "${ubtree}" = "undefined" ]; then + printf "%s: Target %s does not define a U-Boot tree. Skipping build.\n" \ + "build/payload/u-boot" "${board}" + RET=1 + continue + fi + if [ "${arch}" = "undefined" ]; then + printf "%s: Target %s does not define a CPU type. Skipping build.\n" \ + "build/payload/u-boot" "${board}" + RET=1 + continue + 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 "${ubdir}" ]; then + printf "%s: Failed to download U-Boot for target %s. Skipping build.\n" \ + "build/payload/u-boot" "${board}" + RET=1 + continue + fi + + if [ "${arch}" = "x86_32" ] || [ "${arch}" = "x86_64" ]; then + export CROSS_COMPILE=x86_64-linux- + elif [ "${arch}" = "ARMv7" ]; then + export CROSS_COMPILE=arm-linux-gnueabi- + elif [ "${arch}" = "AArch64" ]; then + export CROSS_COMPILE=aarch64-linux-gnu- + fi + + for config in "${board_dir}/config"/*; do + if [ ! -f "${config}" ]; then + printf "%s: Target %s has no configs to build for. Skipping build.\n" \ + "build/payload/u-boot" "${board}" + RET=1 + continue + fi + + config_name="${config#$board_dir/config/}" + if [ "$config_name" = "default" ]; then + dest_dir="payload/u-boot/${board}" + else + dest_dir="payload/u-boot/${board}/${config_name}" + fi + mkdir -p "${dest_dir}" + + printf "%s: Building for target %s (config %s).\n" \ + "build/payload/u-boot" "${board}" "${config_name}" + + 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 "${ubdir}" distclean + + printf "%s: Built for target %s (config %s).\n" \ + "build/payload/u-boot" "${board}" "${config_name}" + done +done + +printf "Done! U-Boot files are in payload/u-boot/\n\n" +exit $RET + +# ------------------- DONE ---------------------- |