1 files changed, 54 insertions, 0 deletions
diff --git a/scripts/image_signing/get_gbb_flags.sh b/scripts/image_signing/get_gbb_flags.sh
new file mode 100755
index 00000000..a6aa89a1
--- /dev/null
+++ b/scripts/image_signing/get_gbb_flags.sh
@@ -0,0 +1,54 @@
+#!/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[0-9]+")"
+  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 "$@"