1 #! /bin/bash 2 # SPDX-License-Identifier: GPL-2.0+ 3 # 4 # Copyright (C) 2016, Lukasz Majewski <l.majewski (at] majess.pl> 5 # 6 7 # This file extracts default envs from built u-boot 8 # usage: get_default_envs.sh [build dir] > u-boot-env-default.txt 9 set -ue 10 11 : "${OBJCOPY:=${CROSS_COMPILE:-}objcopy}" 12 13 ENV_OBJ_FILE="built-in.o" 14 ENV_OBJ_FILE_COPY="copy_${ENV_OBJ_FILE}" 15 16 echoerr() { echo "$@" 1>&2; } 17 18 if [ "$#" -eq 1 ]; then 19 path=${1} 20 else 21 path=$(readlink -f $0) 22 path=${path%/scripts*} 23 fi 24 25 env_obj_file_path=$(find ${path} -path "*/env/*" -not -path "*/spl/*" \ 26 -not -path "*/tools/*" -name "${ENV_OBJ_FILE}") 27 [ -z "${env_obj_file_path}" ] && \ 28 { echoerr "File '${ENV_OBJ_FILE}' not found!"; exit 1; } 29 30 cp ${env_obj_file_path} ${ENV_OBJ_FILE_COPY} 31 32 # NOTE: objcopy saves its output to file passed in 33 # (copy_${ENV_OBJ_FILE} in this case) 34 35 ${OBJCOPY} -O binary -j ".rodata.default_environment" ${ENV_OBJ_FILE_COPY} 36 37 # Replace default '\0' with '\n' and sort entries 38 tr '\0' '\n' < ${ENV_OBJ_FILE_COPY} | sort -u 39 40 rm ${ENV_OBJ_FILE_COPY} 41 42 exit 0 43
