| #!/bin/sh |
| # |
| # Copyright 2017 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| # |
| # This script can change GBB flags in system live firmware or a given image |
| # file. |
| |
| SCRIPT_BASE="$(dirname "$0")" |
| . "${SCRIPT_BASE}/gbb_flags_common.sh" |
| |
| # DEFINE_string name default_value description flag |
| DEFINE_string file "" "Path to firmware image. Default to system firmware." "f" |
| DEFINE_boolean explicit ${FLAGS_FALSE} "Print list of what flags are set." "e" |
| |
| set -e |
| |
| main() { |
| if [ $# -ne 0 ]; then |
| flags_help |
| exit 1 |
| fi |
| |
| local image_file="${FLAGS_file}" |
| |
| if [ -z "${FLAGS_file}" ]; then |
| image_file="$(make_temp_file)" |
| flashrom_read "${image_file}" |
| fi |
| |
| # Process file. |
| |
| # Keep 'local' declaration split from assignment so return code is checked. |
| local gbb_flags |
| gbb_flags="$(futility gbb -g --flags "${image_file}")" |
| local raw_gbb_flags="$(echo "${gbb_flags}" | egrep -o "0x[0-9a-fA-F]+")" |
| printf "Chrome OS GBB set ${gbb_flags}\n" |
| |
| if [ "${FLAGS_explicit}" = "${FLAGS_TRUE}" ]; then |
| printf "Chrome OS GBB set flags listed:\n" |
| echo "${GBBFLAGS_LIST}" | while read -r flag code; do |
| if [ $((code & raw_gbb_flags)) -ne 0 ]; then |
| printf "${flag}\n" |
| fi |
| done |
| fi |
| } |
| |
| # Parse command line. |
| FLAGS "$@" || exit 1 |
| eval set -- "${FLAGS_ARGV}" |
| |
| main "$@" |