FM / kconfig

/usr/src/linux-headers-5.15.0-181-generic/scripts/kconfig/

/usr/src/linux-headers-5.15.0-181-generic/scripts/kconfig

Name	Size	Mode	Actions
lxdialog/	-	0755	rm
tests/	-	0755	rm
.conf.cmd	291	0644	edit dl rm
.conf.o.cmd	761	0644	edit dl rm
.confdata.o.cmd	838	0644	edit dl rm
.expr.o.cmd	761	0644	edit dl rm
.lexer.lex.c.cmd	130	0644	edit dl rm
.lexer.lex.o.cmd	829	0644	edit dl rm
.menu.o.cmd	825	0644	edit dl rm
.parser.tab.h.cmd	177	0644	edit dl rm
.parser.tab.o.cmd	903	0644	edit dl rm
.preprocess.o.cmd	821	0644	edit dl rm
.symbol.o.cmd	781	0644	edit dl rm
.util.o.cmd	761	0644	edit dl rm
conf	145520	0755	edit dl rm
conf.c	20558	0644	edit dl rm
conf.o	27848	0644	edit dl rm
confdata.c	23334	0644	edit dl rm
confdata.o	25736	0644	edit dl rm
expr.c	30249	0644	edit dl rm
expr.h	9653	0644	edit dl rm
expr.o	24856	0644	edit dl rm
gconf-cfg.sh	775	0755	edit dl rm
gconf.c	38975	0644	edit dl rm
gconf.glade	25642	0644	edit dl rm
images.c	6573	0644	edit dl rm
images.h	857	0644	edit dl rm
internal.h	172	0644	edit dl rm
lexer.l	9259	0644	edit dl rm
lexer.lex.c	115380	0644	edit dl rm
lexer.lex.o	49544	0644	edit dl rm
list.h	3749	0644	edit dl rm
lkc.h	4044	0644	edit dl rm
lkc_proto.h	2013	0644	edit dl rm
Makefile	7788	0644	edit dl rm
mconf-cfg.sh	1502	0755	edit dl rm
mconf.c	27888	0644	edit dl rm
menu.c	22090	0644	edit dl rm
menu.o	21144	0644	edit dl rm
merge_config.sh	5181	0755	edit dl rm
nconf-cfg.sh	1404	0755	edit dl rm
nconf.c	38875	0644	edit dl rm
nconf.gui.c	14911	0644	edit dl rm
nconf.h	2050	0644	edit dl rm
parser.tab.c	73309	0644	edit dl rm
parser.tab.h	5118	0644	edit dl rm
parser.tab.o	42960	0644	edit dl rm
parser.y	15608	0644	edit dl rm
preprocess.c	11334	0644	edit dl rm
preprocess.o	12088	0644	edit dl rm
qconf-cfg.sh	643	0755	edit dl rm
qconf.cc	44467	0644	edit dl rm
qconf.h	6552	0644	edit dl rm
streamline_config.pl	16821	0755	edit dl rm
symbol.c	29410	0644	edit dl rm
symbol.o	26552	0644	edit dl rm
util.c	2210	0644	edit dl rm
util.o	5104	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/scripts/kconfig/merge_config.sh (5181B)

#!/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: $0 [OPTIONS] [CONFIG [...]]"
	echo "  -h    display this help text"
	echo "  -m    only merge the fragments, do not execute the make command"
	echo "  -n    use allnoconfig instead of alldefconfig"
	echo "  -r    list redundant entries when merging fragments"
	echo "  -y    make builtin have precedence over modules"
	echo "  -O    dir to put generated output files.  Consider setting \$KCONFIG_CONFIG instead."
	echo "  -s    strict mode. Fail if the fragment redefines any value."
	echo
	echo "Used prefix: '$CONFIG_PREFIX'. You can redefine it with \$CONFIG_ environment variable."
}

RUNMAKE=true
ALLTARGET=alldefconfig
WARNREDUN=false
BUILTIN=false
OUTPUT=.
STRICT=false
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
		;;
	"-s")
		STRICT=true
		shift
		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. Creating one..." >&2
	touch "$INITFILE"
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:       $NEW_VAL
			echo -y passed, will not demote y to m
			echo
			BUILTIN_FLAG=true
		elif [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
			echo Value of $CFG is redefined by fragment $ORIG_MERGE_FILE:
			echo Previous  value: $PREV_VAL
			echo New value:       $NEW_VAL
			echo
			if [ "$STRICT" = "true" ]; then
				STRICT_MODE_VIOLATED=true
			fi
		elif [ "$WARNREDUN" = "true" ]; then
			echo Value of $CFG is redundant by fragment $ORIG_MERGE_FILE:
		fi
		if [ "$BUILTIN_FLAG" = "false" ]; then
			sed -i "/$CFG[ =]/d" $TMP_FILE
		else
			sed -i "/$CFG[ =]/d" $MERGE_FILE
		fi
	done
	# In case the previous file lacks a new line at the end
	echo >> $TMP_FILE
	cat $MERGE_FILE >> $TMP_FILE
done

if [ "$STRICT_MODE_VIOLATED" = "true" ]; then
	echo "The fragment redefined a value and strict mode had been passed."
	exit 1
fi

if [ "$RUNMAKE" = "false" ]; then
	cp -T -- "$TMP_FILE" "$KCONFIG_CONFIG"
	echo "#"
	echo "# merged configuration written to $KCONFIG_CONFIG (needs make)"
	echo "#"
	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 $(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $TMP_FILE); do

REQUESTED_VAL=$(grep -w -e "$CFG" $TMP_FILE)
	ACTUAL_VAL=$(grep -w -e "$CFG" "$KCONFIG_CONFIG" || true)
	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

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