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#!/bin/bash -e
# Copyright 2019 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Script to generate a symbol ordering file that sorts bss section symbols by
# their sizes.
# Inputs:
# Environment:
# CROSS_COMPILE: prefix added to nm tools
# Arguments:
# $1: Input ELF file
# $2: Output symbol ordering file
set -o pipefail
${CROSS_COMPILE}nm --size-sort $1 | awk '{if ($2 == "b" || $2 == "B") print $3}' > $2
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