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-rwxr-xr-xscripts/kconfig/merge_config.sh48
1 files changed, 31 insertions, 17 deletions
diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index 0ef906499646..d924c51d28b7 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -1,4 +1,6 @@
#!/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
@@ -10,18 +12,10 @@
#
# 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
+ rm -f $MERGE_FILE
exit
}
trap clean_up HUP INT TERM
@@ -32,6 +26,7 @@ usage() {
echo " -m only merge the fragments, do not execute the make command"
echo " -n use allnoconfig instead of alldefconfig"
echo " -r list redundant entries when merging fragments"
+ echo " -y make builtin have precedence over modules"
echo " -O dir to put generated output files. Consider setting \$KCONFIG_CONFIG instead."
echo
echo "Used prefix: '$CONFIG_PREFIX'. You can redefine it with \$CONFIG_ environment variable."
@@ -40,6 +35,7 @@ usage() {
RUNMAKE=true
ALLTARGET=alldefconfig
WARNREDUN=false
+BUILTIN=false
OUTPUT=.
CONFIG_PREFIX=${CONFIG_-CONFIG_}
@@ -64,6 +60,11 @@ while true; do
shift
continue
;;
+ "-y")
+ BUILTIN=true
+ shift
+ continue
+ ;;
"-O")
if [ -d $2 ];then
OUTPUT=$(echo $2 | sed 's/\/*$//')
@@ -106,32 +107,45 @@ 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"
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
+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 $MERGE_FILE)
- if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
- echo Value of $CFG is redefined by fragment $MERGE_FILE:
+ BUILTIN_FLAG=false
+ if [ "$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: $NEW_VAL
echo
elif [ "$WARNREDUN" = "true" ]; then
- echo Value of $CFG is redundant by fragment $MERGE_FILE:
+ 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" $MERGE_FILE
fi
- sed -i "/$CFG[ =]/d" $TMP_FILE
done
cat $MERGE_FILE >> $TMP_FILE
done