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

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (C) 2016, Lukasz Majewski <[email protected]>
#

# This file extracts default envs from built u-boot
# usage: get_default_envs.sh [build dir] > u-boot-env-default.txt
set -ue

: "${OBJCOPY:=${CROSS_COMPILE:-}objcopy}"

ENV_OBJ_FILE="common.o"
ENV_OBJ_FILE_COPY="copy_${ENV_OBJ_FILE}"

echoerr() { echo "$@" 1>&2; }

if [ "$#" -eq 1 ]; then
    path=${1}
else
    path=$(readlink -f $0)
    path=${path%/scripts*}
fi

env_obj_file_path=$(find ${path} -path "*/env/*" -not -path "*/spl/*" \
			 -not -path "*/tools/*" -name "${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_OBJ_FILE} in this case)

${OBJCOPY} --dump-section .rodata.default_environment=${ENV_OBJ_FILE_COPY} \
	${env_obj_file_path}

# Replace default '\0' with '\n' , remove blank lines and sort entries
tr '\0' '\n' < ${ENV_OBJ_FILE_COPY} | sed -e '/^\s*$/d' | sort --field-separator== -k1,1 --stable

rm ${ENV_OBJ_FILE_COPY}

exit 0
Commit	Line	Data
27229b2a	1	#! /bin/bash
83d290c5	2	# SPDX-License-Identifier: GPL-2.0+
27229b2a LM	3	#
	4	# Copyright (C) 2016, Lukasz Majewski <[email protected]>
	5	#
27229b2a LM	6
27229b2a LM	7	# This file extracts default envs from built u-boot
0778e7c5	8	# usage: get_default_envs.sh [build dir] > u-boot-env-default.txt
27229b2a LM	9	set -ue
27229b2a LM	10
0778e7c5 LM	11	: "${OBJCOPY:=${CROSS_COMPILE:-}objcopy}"
0778e7c5 LM	12
963fde31	13	ENV_OBJ_FILE="common.o"
27229b2a LM	14	ENV_OBJ_FILE_COPY="copy_${ENV_OBJ_FILE}"
	15
	16	echoerr() { echo "$@" 1>&2; }
	17
0778e7c5 LM	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 ${path} -path "/env/" -not -path "/spl/" \
e94b93d5	26	-not -path "/tools/" -name "${ENV_OBJ_FILE}")
27229b2a LM	27	[ -z "${env_obj_file_path}" ] && \
	28	{ echoerr "File '${ENV_OBJ_FILE}' not found!"; exit 1; }
	29
	30	cp ${env_obj_file_path} ${ENV_OBJ_FILE_COPY}
	31
	32	# NOTE: objcopy saves its output to file passed in
0778e7c5 LM	33	# (copy_${ENV_OBJ_FILE} in this case)
0778e7c5 LM	34
963fde31 TR	35	${OBJCOPY} --dump-section .rodata.default_environment=${ENV_OBJ_FILE_COPY} \
963fde31 TR	36	${env_obj_file_path}
27229b2a	37
7d79cba2 CN	38	# Replace default '\0' with '\n' , remove blank lines and sort entries
7d79cba2 CN	39	tr '\0' '\n' < ${ENV_OBJ_FILE_COPY} \| sed -e '/^\s*$/d' \| sort --field-separator== -k1,1 --stable
27229b2a LM	40
	41	rm ${ENV_OBJ_FILE_COPY}
	42
	43	exit 0