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