[J-u-boot.git] / scripts / get_default_envs.sh

#! /bin/bash
#
# Copyright (C) 2016, Lukasz Majewski <[email protected]>
#
# 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
Commit	Line	Data
27229b2a LM	1	#! /bin/bash
	2	#
	3	# Copyright (C) 2016, Lukasz Majewski <[email protected]>
	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
	10	set -ue
	11
	12	ENV_OBJ_FILE="env_common.o"
	13	ENV_OBJ_FILE_COPY="copy_${ENV_OBJ_FILE}"
	14
	15	echoerr() { echo "$@" 1>&2; }
	16
	17	path=$(readlink -f $0)
	18	env_obj_file_path=$(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
	23	cp ${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)
	27	objcopy -O binary -j ".rodata.default_environment" ${ENV_OBJ_FILE_COPY}
	28
	29	# Replace default '\0' with '\n' and sort entries
	30	tr '\0' '\n' < ${ENV_OBJ_FILE_COPY} \| sort -u
	31
	32	rm ${ENV_OBJ_FILE_COPY}
	33
	34	exit 0