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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/scripts/get_default_envs.sh | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/scripts/get_default_envs.sh')
-rwxr-xr-x | roms/u-boot/scripts/get_default_envs.sh | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/roms/u-boot/scripts/get_default_envs.sh b/roms/u-boot/scripts/get_default_envs.sh new file mode 100755 index 000000000..d1f2ce4d5 --- /dev/null +++ b/roms/u-boot/scripts/get_default_envs.sh @@ -0,0 +1,42 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2016, Lukasz Majewski <l.majewski@majess.pl> +# + +# 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="built-in.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} -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 --field-separator== -k1,1 --stable + +rm ${ENV_OBJ_FILE_COPY} + +exit 0 |