blob: 0d883b37882a145b588a45f53f3be373849e7410 [file] [log] [blame]
john stultz4b5f7212012-01-10 15:41:08 -08001#!/bin/sh
2# merge_config.sh - Takes a list of config fragment values, and merges
3# them one by one. Provides warnings on overridden values, and specified
4# values that did not make it to the resulting .config file (due to missed
5# dependencies or config symbol removal).
6#
7# Portions reused from kconf_check and generate_cfg:
8# http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/kconf_check
9# http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/generate_cfg
10#
11# Copyright (c) 2009-2010 Wind River Systems, Inc.
12# Copyright 2011 Linaro
13#
14# This program is free software; you can redistribute it and/or modify
15# it under the terms of the GNU General Public License version 2 as
16# published by the Free Software Foundation.
17#
18# This program is distributed in the hope that it will be useful,
19# but WITHOUT ANY WARRANTY; without even the implied warranty of
20# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
21# See the GNU General Public License for more details.
22
23clean_up() {
Darren Hartc0c0cda2012-01-10 15:41:12 -080024 rm -f $TMP_FILE
25 exit
john stultz4b5f7212012-01-10 15:41:08 -080026}
Darren Hart041b78c2012-01-10 15:41:10 -080027trap clean_up HUP INT TERM
john stultz4b5f7212012-01-10 15:41:08 -080028
29usage() {
30 echo "Usage: $0 [OPTIONS] [CONFIG [...]]"
31 echo " -h display this help text"
32 echo " -m only merge the fragments, do not execute the make command"
33 echo " -n use allnoconfig instead of alldefconfig"
John Stultz9875c422012-03-23 12:52:08 -070034 echo " -r list redundant entries when merging fragments"
Zhangfei Gao409f1172012-12-03 15:36:10 +080035 echo " -O dir to put generated output files"
john stultz4b5f7212012-01-10 15:41:08 -080036}
37
Masahiro Yamadabc8f8f52015-03-13 15:21:42 +090038RUNMAKE=true
john stultz4b5f7212012-01-10 15:41:08 -080039ALLTARGET=alldefconfig
John Stultz9875c422012-03-23 12:52:08 -070040WARNREDUN=false
Zhangfei Gao409f1172012-12-03 15:36:10 +080041OUTPUT=.
john stultz4b5f7212012-01-10 15:41:08 -080042
43while true; do
44 case $1 in
45 "-n")
46 ALLTARGET=allnoconfig
47 shift
48 continue
49 ;;
50 "-m")
Masahiro Yamadabc8f8f52015-03-13 15:21:42 +090051 RUNMAKE=false
john stultz4b5f7212012-01-10 15:41:08 -080052 shift
53 continue
54 ;;
55 "-h")
56 usage
57 exit
58 ;;
John Stultz9875c422012-03-23 12:52:08 -070059 "-r")
60 WARNREDUN=true
61 shift
62 continue
63 ;;
Zhangfei Gao409f1172012-12-03 15:36:10 +080064 "-O")
65 if [ -d $2 ];then
66 OUTPUT=$(echo $2 | sed 's/\/*$//')
67 else
68 echo "output directory $2 does not exist" 1>&2
69 exit 1
70 fi
71 shift 2
72 continue
73 ;;
john stultz4b5f7212012-01-10 15:41:08 -080074 *)
75 break
76 ;;
77 esac
78done
79
Olof Johansson09950bc2014-12-11 12:55:03 -080080if [ "$#" -lt 2 ] ; then
81 usage
82 exit
83fi
84
Josh Boyer09280612012-02-01 12:01:58 -050085INITFILE=$1
86shift;
john stultz4b5f7212012-01-10 15:41:08 -080087
Masahiro Yamadab9fe99c2015-03-13 15:21:39 +090088if [ ! -r "$INITFILE" ]; then
89 echo "The base file '$INITFILE' does not exist. Exit." >&2
90 exit 1
91fi
92
john stultz4b5f7212012-01-10 15:41:08 -080093MERGE_LIST=$*
94SED_CONFIG_EXP="s/^\(# \)\{0,1\}\(CONFIG_[a-zA-Z0-9_]*\)[= ].*/\2/p"
95TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
96
Josh Boyer09280612012-02-01 12:01:58 -050097echo "Using $INITFILE as base"
98cat $INITFILE > $TMP_FILE
99
Masahiro Yamada4980bdf2014-12-03 15:55:49 +0900100# Merge files, printing warnings on overridden values
john stultz4b5f7212012-01-10 15:41:08 -0800101for MERGE_FILE in $MERGE_LIST ; do
102 echo "Merging $MERGE_FILE"
Sam Bobroff78a68542015-07-20 15:12:19 +1000103 if [ ! -r "$MERGE_FILE" ]; then
104 echo "The merge file '$MERGE_FILE' does not exist. Exit." >&2
105 exit 1
106 fi
john stultz4b5f7212012-01-10 15:41:08 -0800107 CFG_LIST=$(sed -n "$SED_CONFIG_EXP" $MERGE_FILE)
108
109 for CFG in $CFG_LIST ; do
Masahiro Yamada3a975b82015-03-13 15:21:41 +0900110 grep -q -w $CFG $TMP_FILE || continue
111 PREV_VAL=$(grep -w $CFG $TMP_FILE)
112 NEW_VAL=$(grep -w $CFG $MERGE_FILE)
113 if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
john stultz4b5f7212012-01-10 15:41:08 -0800114 echo Value of $CFG is redefined by fragment $MERGE_FILE:
115 echo Previous value: $PREV_VAL
116 echo New value: $NEW_VAL
117 echo
Masahiro Yamada3a975b82015-03-13 15:21:41 +0900118 elif [ "$WARNREDUN" = "true" ]; then
John Stultz9875c422012-03-23 12:52:08 -0700119 echo Value of $CFG is redundant by fragment $MERGE_FILE:
john stultz4b5f7212012-01-10 15:41:08 -0800120 fi
Masahiro Yamada3a975b82015-03-13 15:21:41 +0900121 sed -i "/$CFG[ =]/d" $TMP_FILE
john stultz4b5f7212012-01-10 15:41:08 -0800122 done
123 cat $MERGE_FILE >> $TMP_FILE
124done
125
Masahiro Yamadabc8f8f52015-03-13 15:21:42 +0900126if [ "$RUNMAKE" = "false" ]; then
Zhangfei Gao409f1172012-12-03 15:36:10 +0800127 cp $TMP_FILE $OUTPUT/.config
john stultz4b5f7212012-01-10 15:41:08 -0800128 echo "#"
Zhangfei Gao409f1172012-12-03 15:36:10 +0800129 echo "# merged configuration written to $OUTPUT/.config (needs make)"
john stultz4b5f7212012-01-10 15:41:08 -0800130 echo "#"
131 clean_up
132 exit
133fi
134
John Stultza45c7df2013-04-04 12:02:59 -0700135# If we have an output dir, setup the O= argument, otherwise leave
136# it blank, since O=. will create an unnecessary ./source softlink
137OUTPUT_ARG=""
138if [ "$OUTPUT" != "." ] ; then
139 OUTPUT_ARG="O=$OUTPUT"
140fi
141
142
john stultz4b5f7212012-01-10 15:41:08 -0800143# Use the merged file as the starting point for:
144# alldefconfig: Fills in any missing symbols with Kconfig default
145# allnoconfig: Fills in any missing symbols with # CONFIG_* is not set
John Stultza45c7df2013-04-04 12:02:59 -0700146make KCONFIG_ALLCONFIG=$TMP_FILE $OUTPUT_ARG $ALLTARGET
john stultz4b5f7212012-01-10 15:41:08 -0800147
148
149# Check all specified config values took (might have missed-dependency issues)
150for CFG in $(sed -n "$SED_CONFIG_EXP" $TMP_FILE); do
151
John Stultz320d41b2012-01-10 15:41:15 -0800152 REQUESTED_VAL=$(grep -w -e "$CFG" $TMP_FILE)
Zhangfei Gao409f1172012-12-03 15:36:10 +0800153 ACTUAL_VAL=$(grep -w -e "$CFG" $OUTPUT/.config)
john stultz4b5f7212012-01-10 15:41:08 -0800154 if [ "x$REQUESTED_VAL" != "x$ACTUAL_VAL" ] ; then
155 echo "Value requested for $CFG not in final .config"
156 echo "Requested value: $REQUESTED_VAL"
157 echo "Actual value: $ACTUAL_VAL"
158 echo ""
159 fi
160done
161
162clean_up