1#! /bin/bash 2# 3# Copyright (C) 2016, Lukasz Majewski <l.majewski@majess.pl> 4# 5# SPDX-License-Identifier: GPL-2.0+ 6# 7 8# This file extracts default envs from built u-boot 9# usage: get_default_envs.sh > u-boot-env-default.txt 10set -ue 11 12ENV_OBJ_FILE="env_common.o" 13ENV_OBJ_FILE_COPY="copy_${ENV_OBJ_FILE}" 14 15echoerr() { echo "$@" 1>&2; } 16 17path=$(readlink -f $0) 18env_obj_file_path=$(find ${path%/scripts*} -not -path "*/spl/*" \ 19 -name "${ENV_OBJ_FILE}") 20[ -z "${env_obj_file_path}" ] && \ 21 { echoerr "File '${ENV_OBJ_FILE}' not found!"; exit 1; } 22 23cp ${env_obj_file_path} ${ENV_OBJ_FILE_COPY} 24 25# NOTE: objcopy saves its output to file passed in 26# (copy_env_common.o in this case) 27objcopy -O binary -j ".rodata.default_environment" ${ENV_OBJ_FILE_COPY} 28 29# Replace default '\0' with '\n' and sort entries 30tr '\0' '\n' < ${ENV_OBJ_FILE_COPY} | sort -u 31 32rm ${ENV_OBJ_FILE_COPY} 33 34exit 0 35