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&=LyYÿ¿Í — 5#!/usr/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# merge_config.sh - Takes a list of config fragment values, and merges
# them one by one. Provides warnings on overridden values, and specified
# values that did not make it to the resulting .config file (due to missed
# dependencies or config symbol removal).
#
# Portions reused from kconf_check and generate_cfg:
# http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/kconf_check
# http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/generate_cfg
#
# Copyright (c) 2009-2010 Wind River Systems, Inc.
# Copyright 2011 Linaro
set -e
clean_up() {
rm -f $TMP_FILE
rm -f $MERGE_FILE
}
usage() {
echo "Usage: $0 [OPTIONS] [CONFIG [...]]"
echo " -h display this help text"
echo " -m only merge the fragments, do not execute the make command"
echo " -n use allnoconfig instead of alldefconfig"
echo " -r list redundant entries when merging fragments"
echo " -y make builtin have precedence over modules"
echo " -O dir to put generated output files. Consider setting \$KCONFIG_CONFIG instead."
echo
echo "Used prefix: '$CONFIG_PREFIX'. You can redefine it with \$CONFIG_ environment variable."
}
RUNMAKE=true
ALLTARGET=alldefconfig
WARNREDUN=false
BUILTIN=false
OUTPUT=.
CONFIG_PREFIX=${CONFIG_-CONFIG_}
while true; do
case $1 in
"-n")
ALLTARGET=allnoconfig
shift
continue
;;
"-m")
RUNMAKE=false
shift
continue
;;
"-h")
usage
exit
;;
"-r")
WARNREDUN=true
shift
continue
;;
"-y")
BUILTIN=true
shift
continue
;;
"-O")
if [ -d $2 ];then
OUTPUT=$(echo $2 | sed 's/\/*$//')
else
echo "output directory $2 does not exist" 1>&2
exit 1
fi
shift 2
continue
;;
*)
break
;;
esac
done
if [ "$#" -lt 1 ] ; then
usage
exit
fi
if [ -z "$KCONFIG_CONFIG" ]; then
if [ "$OUTPUT" != . ]; then
KCONFIG_CONFIG=$(readlink -m -- "$OUTPUT/.config")
else
KCONFIG_CONFIG=.config
fi
fi
INITFILE=$1
shift;
if [ ! -r "$INITFILE" ]; then
echo "The base file '$INITFILE' does not exist. Exit." >&2
exit 1
fi
MERGE_LIST=$*
SED_CONFIG_EXP1="s/^\(${CONFIG_PREFIX}[a-zA-Z0-9_]*\)=.*/\1/p"
SED_CONFIG_EXP2="s/^# \(${CONFIG_PREFIX}[a-zA-Z0-9_]*\) is not set$/\1/p"
TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
MERGE_FILE=$(mktemp ./.merge_tmp.config.XXXXXXXXXX)
echo "Using $INITFILE as base"
trap clean_up EXIT
cat $INITFILE > $TMP_FILE
# Merge files, printing warnings on overridden values
for ORIG_MERGE_FILE in $MERGE_LIST ; do
echo "Merging $ORIG_MERGE_FILE"
if [ ! -r "$ORIG_MERGE_FILE" ]; then
echo "The merge file '$ORIG_MERGE_FILE' does not exist. Exit." >&2
exit 1
fi
cat $ORIG_MERGE_FILE > $MERGE_FILE
CFG_LIST=$(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $MERGE_FILE)
for CFG in $CFG_LIST ; do
grep -q -w $CFG $TMP_FILE || continue
PREV_VAL=$(grep -w $CFG $TMP_FILE)
NEW_VAL=$(grep -w $CFG $MERGE_FILE)
BUILTIN_FLAG=false
if [ "$BUILTIN" = "true" ] && [ "${NEW_VAL#CONFIG_*=}" = "m" ] && [ "${PREV_VAL#CONFIG_*=}" = "y" ]; then
echo Previous value: $PREV_VAL
echo New value: $NEW_VAL
echo -y passed, will not demote y to m
echo
BUILTIN_F