1#!/bin/bash -e 2 3# Copyright 2019 Google Inc. All rights reserved. 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16 17# Script to generate a symbol ordering file that sorts bss section symbols by 18# their sizes. 19# Inputs: 20# Environment: 21# CLANG_BIN: path to the clang bin directory 22# Arguments: 23# $1: Input ELF file 24# $2: Output symbol ordering file 25 26set -o pipefail 27 28${CLANG_BIN}/llvm-nm --size-sort $1 | awk '{if ($2 == "b" || $2 == "B") print $3}' > $2 29