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- #! /bin/bash
- #
- # Copyright (C) 2016, Lukasz Majewski <l.majewski@majess.pl>
- #
- # SPDX-License-Identifier: GPL-2.0+
- #
- # This file extracts default envs from built u-boot
- # usage: get_default_envs.sh > u-boot-env-default.txt
- set -ue
- ENV_OBJ_FILE="env_common.o"
- ENV_OBJ_FILE_COPY="copy_${ENV_OBJ_FILE}"
- echoerr() { echo "$@" 1>&2; }
- path=$(readlink -f $0)
- env_obj_file_path=$(find ${path%/scripts*} -not -path "*/spl/*" \
- -name "${ENV_OBJ_FILE}")
- [ -z "${env_obj_file_path}" ] && \
- { echoerr "File '${ENV_OBJ_FILE}' not found!"; exit 1; }
- cp ${env_obj_file_path} ${ENV_OBJ_FILE_COPY}
- # NOTE: objcopy saves its output to file passed in
- # (copy_env_common.o in this case)
- objcopy -O binary -j ".rodata.default_environment" ${ENV_OBJ_FILE_COPY}
- # Replace default '\0' with '\n' and sort entries
- tr '\0' '\n' < ${ENV_OBJ_FILE_COPY} | sort -u
- rm ${ENV_OBJ_FILE_COPY}
- exit 0
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