2163e7b38f
merge_config.sh can usefully be applied to a single file. It implicitly merges with the default configuration. Signed-off-by: Gabriel de Perthuis <g2p.code@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.com>
170 lines
4.2 KiB
Bash
Executable file
170 lines
4.2 KiB
Bash
Executable file
#!/bin/sh
|
|
# 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
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License version 2 as
|
|
# published by the Free Software Foundation.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
# See the GNU General Public License for more details.
|
|
|
|
clean_up() {
|
|
rm -f $TMP_FILE
|
|
exit
|
|
}
|
|
trap clean_up HUP INT TERM
|
|
|
|
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 " -O dir to put generated output files. Consider setting \$KCONFIG_CONFIG instead."
|
|
}
|
|
|
|
RUNMAKE=true
|
|
ALLTARGET=alldefconfig
|
|
WARNREDUN=false
|
|
OUTPUT=.
|
|
|
|
while true; do
|
|
case $1 in
|
|
"-n")
|
|
ALLTARGET=allnoconfig
|
|
shift
|
|
continue
|
|
;;
|
|
"-m")
|
|
RUNMAKE=false
|
|
shift
|
|
continue
|
|
;;
|
|
"-h")
|
|
usage
|
|
exit
|
|
;;
|
|
"-r")
|
|
WARNREDUN=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_EXP="s/^\(# \)\{0,1\}\(CONFIG_[a-zA-Z0-9_]*\)[= ].*/\2/p"
|
|
TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
|
|
|
|
echo "Using $INITFILE as base"
|
|
cat $INITFILE > $TMP_FILE
|
|
|
|
# Merge files, printing warnings on overridden values
|
|
for MERGE_FILE in $MERGE_LIST ; do
|
|
echo "Merging $MERGE_FILE"
|
|
if [ ! -r "$MERGE_FILE" ]; then
|
|
echo "The merge file '$MERGE_FILE' does not exist. Exit." >&2
|
|
exit 1
|
|
fi
|
|
CFG_LIST=$(sed -n "$SED_CONFIG_EXP" $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 $MERGE_FILE)
|
|
if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
|
|
echo Value of $CFG is redefined by fragment $MERGE_FILE:
|
|
echo Previous value: $PREV_VAL
|
|
echo New value: $NEW_VAL
|
|
echo
|
|
elif [ "$WARNREDUN" = "true" ]; then
|
|
echo Value of $CFG is redundant by fragment $MERGE_FILE:
|
|
fi
|
|
sed -i "/$CFG[ =]/d" $TMP_FILE
|
|
done
|
|
cat $MERGE_FILE >> $TMP_FILE
|
|
done
|
|
|
|
if [ "$RUNMAKE" = "false" ]; then
|
|
cp -T -- "$TMP_FILE" "$KCONFIG_CONFIG"
|
|
echo "#"
|
|
echo "# merged configuration written to $KCONFIG_CONFIG (needs make)"
|
|
echo "#"
|
|
clean_up
|
|
exit
|
|
fi
|
|
|
|
# If we have an output dir, setup the O= argument, otherwise leave
|
|
# it blank, since O=. will create an unnecessary ./source softlink
|
|
OUTPUT_ARG=""
|
|
if [ "$OUTPUT" != "." ] ; then
|
|
OUTPUT_ARG="O=$OUTPUT"
|
|
fi
|
|
|
|
|
|
# Use the merged file as the starting point for:
|
|
# alldefconfig: Fills in any missing symbols with Kconfig default
|
|
# allnoconfig: Fills in any missing symbols with # CONFIG_* is not set
|
|
make KCONFIG_ALLCONFIG=$TMP_FILE $OUTPUT_ARG $ALLTARGET
|
|
|
|
|
|
# Check all specified config values took (might have missed-dependency issues)
|
|
for CFG in $(sed -n "$SED_CONFIG_EXP" $TMP_FILE); do
|
|
|
|
REQUESTED_VAL=$(grep -w -e "$CFG" $TMP_FILE)
|
|
ACTUAL_VAL=$(grep -w -e "$CFG" "$KCONFIG_CONFIG")
|
|
if [ "x$REQUESTED_VAL" != "x$ACTUAL_VAL" ] ; then
|
|
echo "Value requested for $CFG not in final .config"
|
|
echo "Requested value: $REQUESTED_VAL"
|
|
echo "Actual value: $ACTUAL_VAL"
|
|
echo ""
|
|
fi
|
|
done
|
|
|
|
clean_up
|