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Commit | Line | Data |
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4b5f7214 JS |
1 | #!/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 | ||
23 | clean_up() { | |
c0c0cda2 | 24 | rm -f $TMP_FILE |
a9b72284 | 25 | rm -f $MERGE_FILE |
c0c0cda2 | 26 | exit |
4b5f7214 | 27 | } |
041b78c8 | 28 | trap clean_up HUP INT TERM |
4b5f7214 JS |
29 | |
30 | usage() { | |
31 | echo "Usage: $0 [OPTIONS] [CONFIG [...]]" | |
32 | echo " -h display this help text" | |
33 | echo " -m only merge the fragments, do not execute the make command" | |
34 | echo " -n use allnoconfig instead of alldefconfig" | |
9875c42d | 35 | echo " -r list redundant entries when merging fragments" |
a9b72284 | 36 | echo " -y make builtin have precedence over modules" |
ed94fea5 | 37 | echo " -O dir to put generated output files. Consider setting \$KCONFIG_CONFIG instead." |
2cd3faf8 PV |
38 | echo |
39 | echo "Used prefix: '$CONFIG_PREFIX'. You can redefine it with \$CONFIG_ environment variable." | |
4b5f7214 JS |
40 | } |
41 | ||
bc8f8f5f | 42 | RUNMAKE=true |
4b5f7214 | 43 | ALLTARGET=alldefconfig |
9875c42d | 44 | WARNREDUN=false |
a9b72284 | 45 | BUILTIN=false |
409f117e | 46 | OUTPUT=. |
2cd3faf8 | 47 | CONFIG_PREFIX=${CONFIG_-CONFIG_} |
4b5f7214 JS |
48 | |
49 | while true; do | |
50 | case $1 in | |
51 | "-n") | |
52 | ALLTARGET=allnoconfig | |
53 | shift | |
54 | continue | |
55 | ;; | |
56 | "-m") | |
bc8f8f5f | 57 | RUNMAKE=false |
4b5f7214 JS |
58 | shift |
59 | continue | |
60 | ;; | |
61 | "-h") | |
62 | usage | |
63 | exit | |
64 | ;; | |
9875c42d JS |
65 | "-r") |
66 | WARNREDUN=true | |
67 | shift | |
68 | continue | |
69 | ;; | |
a9b72284 AR |
70 | "-y") |
71 | BUILTIN=true | |
72 | shift | |
73 | continue | |
74 | ;; | |
409f117e ZG |
75 | "-O") |
76 | if [ -d $2 ];then | |
77 | OUTPUT=$(echo $2 | sed 's/\/*$//') | |
78 | else | |
79 | echo "output directory $2 does not exist" 1>&2 | |
80 | exit 1 | |
81 | fi | |
82 | shift 2 | |
83 | continue | |
84 | ;; | |
4b5f7214 JS |
85 | *) |
86 | break | |
87 | ;; | |
88 | esac | |
89 | done | |
90 | ||
2163e7b3 | 91 | if [ "$#" -lt 1 ] ; then |
09950bc2 OJ |
92 | usage |
93 | exit | |
94 | fi | |
95 | ||
ed94fea5 GP |
96 | if [ -z "$KCONFIG_CONFIG" ]; then |
97 | if [ "$OUTPUT" != . ]; then | |
98 | KCONFIG_CONFIG=$(readlink -m -- "$OUTPUT/.config") | |
99 | else | |
100 | KCONFIG_CONFIG=.config | |
101 | fi | |
102 | fi | |
103 | ||
09280615 JB |
104 | INITFILE=$1 |
105 | shift; | |
4b5f7214 | 106 | |
b9fe99c5 MY |
107 | if [ ! -r "$INITFILE" ]; then |
108 | echo "The base file '$INITFILE' does not exist. Exit." >&2 | |
109 | exit 1 | |
110 | fi | |
111 | ||
4b5f7214 | 112 | MERGE_LIST=$* |
6bbe4385 MY |
113 | SED_CONFIG_EXP1="s/^\(${CONFIG_PREFIX}[a-zA-Z0-9_]*\)=.*/\1/p" |
114 | SED_CONFIG_EXP2="s/^# \(${CONFIG_PREFIX}[a-zA-Z0-9_]*\) is not set$/\1/p" | |
2cd3faf8 | 115 | |
4b5f7214 | 116 | TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX) |
a9b72284 | 117 | MERGE_FILE=$(mktemp ./.merge_tmp.config.XXXXXXXXXX) |
4b5f7214 | 118 | |
09280615 JB |
119 | echo "Using $INITFILE as base" |
120 | cat $INITFILE > $TMP_FILE | |
121 | ||
4980bdf0 | 122 | # Merge files, printing warnings on overridden values |
a9b72284 AR |
123 | for ORIG_MERGE_FILE in $MERGE_LIST ; do |
124 | echo "Merging $ORIG_MERGE_FILE" | |
125 | if [ ! -r "$ORIG_MERGE_FILE" ]; then | |
126 | echo "The merge file '$ORIG_MERGE_FILE' does not exist. Exit." >&2 | |
78a6854e SB |
127 | exit 1 |
128 | fi | |
a9b72284 | 129 | cat $ORIG_MERGE_FILE > $MERGE_FILE |
6bbe4385 | 130 | CFG_LIST=$(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $MERGE_FILE) |
4b5f7214 JS |
131 | |
132 | for CFG in $CFG_LIST ; do | |
3a975b8c MY |
133 | grep -q -w $CFG $TMP_FILE || continue |
134 | PREV_VAL=$(grep -w $CFG $TMP_FILE) | |
135 | NEW_VAL=$(grep -w $CFG $MERGE_FILE) | |
a9b72284 AR |
136 | BUILTIN_FLAG=false |
137 | if [ "$BUILTIN" = "true" ] && [ "${NEW_VAL#CONFIG_*=}" = "m" ] && [ "${PREV_VAL#CONFIG_*=}" = "y" ]; then | |
138 | echo Previous value: $PREV_VAL | |
139 | echo New value: $NEW_VAL | |
140 | echo -y passed, will not demote y to m | |
141 | echo | |
142 | BUILTIN_FLAG=true | |
143 | elif [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then | |
144 | echo Value of $CFG is redefined by fragment $ORIG_MERGE_FILE: | |
4b5f7214 JS |
145 | echo Previous value: $PREV_VAL |
146 | echo New value: $NEW_VAL | |
147 | echo | |
3a975b8c | 148 | elif [ "$WARNREDUN" = "true" ]; then |
a9b72284 AR |
149 | echo Value of $CFG is redundant by fragment $ORIG_MERGE_FILE: |
150 | fi | |
151 | if [ "$BUILTIN_FLAG" = "false" ]; then | |
152 | sed -i "/$CFG[ =]/d" $TMP_FILE | |
153 | else | |
154 | sed -i "/$CFG[ =]/d" $MERGE_FILE | |
4b5f7214 JS |
155 | fi |
156 | done | |
157 | cat $MERGE_FILE >> $TMP_FILE | |
158 | done | |
159 | ||
bc8f8f5f | 160 | if [ "$RUNMAKE" = "false" ]; then |
ed94fea5 | 161 | cp -T -- "$TMP_FILE" "$KCONFIG_CONFIG" |
4b5f7214 | 162 | echo "#" |
ed94fea5 | 163 | echo "# merged configuration written to $KCONFIG_CONFIG (needs make)" |
4b5f7214 JS |
164 | echo "#" |
165 | clean_up | |
166 | exit | |
167 | fi | |
168 | ||
a45c7dfb JS |
169 | # If we have an output dir, setup the O= argument, otherwise leave |
170 | # it blank, since O=. will create an unnecessary ./source softlink | |
171 | OUTPUT_ARG="" | |
172 | if [ "$OUTPUT" != "." ] ; then | |
173 | OUTPUT_ARG="O=$OUTPUT" | |
174 | fi | |
175 | ||
176 | ||
4b5f7214 JS |
177 | # Use the merged file as the starting point for: |
178 | # alldefconfig: Fills in any missing symbols with Kconfig default | |
179 | # allnoconfig: Fills in any missing symbols with # CONFIG_* is not set | |
a45c7dfb | 180 | make KCONFIG_ALLCONFIG=$TMP_FILE $OUTPUT_ARG $ALLTARGET |
4b5f7214 JS |
181 | |
182 | ||
183 | # Check all specified config values took (might have missed-dependency issues) | |
6bbe4385 | 184 | for CFG in $(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $TMP_FILE); do |
4b5f7214 | 185 | |
320d41bb | 186 | REQUESTED_VAL=$(grep -w -e "$CFG" $TMP_FILE) |
ed94fea5 | 187 | ACTUAL_VAL=$(grep -w -e "$CFG" "$KCONFIG_CONFIG") |
4b5f7214 JS |
188 | if [ "x$REQUESTED_VAL" != "x$ACTUAL_VAL" ] ; then |
189 | echo "Value requested for $CFG not in final .config" | |
190 | echo "Requested value: $REQUESTED_VAL" | |
191 | echo "Actual value: $ACTUAL_VAL" | |
192 | echo "" | |
193 | fi | |
194 | done | |
195 | ||
196 | clean_up |