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