Commit | Line | Data |
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4b5f7214 | 1 | #!/bin/sh |
0c874100 MY |
2 | # SPDX-License-Identifier: GPL-2.0 |
3 | # | |
4b5f7214 | 4 | # merge_config.sh - Takes a list of config fragment values, and merges |
5 | # them one by one. Provides warnings on overridden values, and specified | |
6 | # values that did not make it to the resulting .config file (due to missed | |
7 | # dependencies or config symbol removal). | |
8 | # | |
9 | # Portions reused from kconf_check and generate_cfg: | |
10 | # http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/kconf_check | |
11 | # http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/generate_cfg | |
12 | # | |
13 | # Copyright (c) 2009-2010 Wind River Systems, Inc. | |
14 | # Copyright 2011 Linaro | |
4b5f7214 | 15 | |
16 | clean_up() { | |
c0c0cda2 | 17 | rm -f $TMP_FILE |
a9b72284 | 18 | rm -f $MERGE_FILE |
c0c0cda2 | 19 | exit |
4b5f7214 | 20 | } |
041b78c8 | 21 | trap clean_up HUP INT TERM |
4b5f7214 | 22 | |
23 | usage() { | |
24 | echo "Usage: $0 [OPTIONS] [CONFIG [...]]" | |
25 | echo " -h display this help text" | |
26 | echo " -m only merge the fragments, do not execute the make command" | |
27 | echo " -n use allnoconfig instead of alldefconfig" | |
9875c42d | 28 | echo " -r list redundant entries when merging fragments" |
a9b72284 | 29 | echo " -y make builtin have precedence over modules" |
ed94fea5 | 30 | echo " -O dir to put generated output files. Consider setting \$KCONFIG_CONFIG instead." |
2cd3faf8 PV |
31 | echo |
32 | echo "Used prefix: '$CONFIG_PREFIX'. You can redefine it with \$CONFIG_ environment variable." | |
4b5f7214 | 33 | } |
34 | ||
bc8f8f5f | 35 | RUNMAKE=true |
4b5f7214 | 36 | ALLTARGET=alldefconfig |
9875c42d | 37 | WARNREDUN=false |
a9b72284 | 38 | BUILTIN=false |
409f117e | 39 | OUTPUT=. |
2cd3faf8 | 40 | CONFIG_PREFIX=${CONFIG_-CONFIG_} |
4b5f7214 | 41 | |
42 | while true; do | |
43 | case $1 in | |
44 | "-n") | |
45 | ALLTARGET=allnoconfig | |
46 | shift | |
47 | continue | |
48 | ;; | |
49 | "-m") | |
bc8f8f5f | 50 | RUNMAKE=false |
4b5f7214 | 51 | shift |
52 | continue | |
53 | ;; | |
54 | "-h") | |
55 | usage | |
56 | exit | |
57 | ;; | |
9875c42d JS |
58 | "-r") |
59 | WARNREDUN=true | |
60 | shift | |
61 | continue | |
62 | ;; | |
a9b72284 AR |
63 | "-y") |
64 | BUILTIN=true | |
65 | shift | |
66 | continue | |
67 | ;; | |
409f117e ZG |
68 | "-O") |
69 | if [ -d $2 ];then | |
70 | OUTPUT=$(echo $2 | sed 's/\/*$//') | |
71 | else | |
72 | echo "output directory $2 does not exist" 1>&2 | |
73 | exit 1 | |
74 | fi | |
75 | shift 2 | |
76 | continue | |
77 | ;; | |
4b5f7214 | 78 | *) |
79 | break | |
80 | ;; | |
81 | esac | |
82 | done | |
83 | ||
2163e7b3 | 84 | if [ "$#" -lt 1 ] ; then |
09950bc2 OJ |
85 | usage |
86 | exit | |
87 | fi | |
88 | ||
ed94fea5 GP |
89 | if [ -z "$KCONFIG_CONFIG" ]; then |
90 | if [ "$OUTPUT" != . ]; then | |
91 | KCONFIG_CONFIG=$(readlink -m -- "$OUTPUT/.config") | |
92 | else | |
93 | KCONFIG_CONFIG=.config | |
94 | fi | |
95 | fi | |
96 | ||
09280615 JB |
97 | INITFILE=$1 |
98 | shift; | |
4b5f7214 | 99 | |
b9fe99c5 MY |
100 | if [ ! -r "$INITFILE" ]; then |
101 | echo "The base file '$INITFILE' does not exist. Exit." >&2 | |
102 | exit 1 | |
103 | fi | |
104 | ||
4b5f7214 | 105 | MERGE_LIST=$* |
6bbe4385 MY |
106 | SED_CONFIG_EXP1="s/^\(${CONFIG_PREFIX}[a-zA-Z0-9_]*\)=.*/\1/p" |
107 | SED_CONFIG_EXP2="s/^# \(${CONFIG_PREFIX}[a-zA-Z0-9_]*\) is not set$/\1/p" | |
2cd3faf8 | 108 | |
4b5f7214 | 109 | TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX) |
a9b72284 | 110 | MERGE_FILE=$(mktemp ./.merge_tmp.config.XXXXXXXXXX) |
4b5f7214 | 111 | |
09280615 JB |
112 | echo "Using $INITFILE as base" |
113 | cat $INITFILE > $TMP_FILE | |
114 | ||
4980bdf0 | 115 | # Merge files, printing warnings on overridden values |
a9b72284 AR |
116 | for ORIG_MERGE_FILE in $MERGE_LIST ; do |
117 | echo "Merging $ORIG_MERGE_FILE" | |
118 | if [ ! -r "$ORIG_MERGE_FILE" ]; then | |
119 | echo "The merge file '$ORIG_MERGE_FILE' does not exist. Exit." >&2 | |
78a6854e SB |
120 | exit 1 |
121 | fi | |
a9b72284 | 122 | cat $ORIG_MERGE_FILE > $MERGE_FILE |
6bbe4385 | 123 | CFG_LIST=$(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $MERGE_FILE) |
4b5f7214 | 124 | |
125 | for CFG in $CFG_LIST ; do | |
3a975b8c MY |
126 | grep -q -w $CFG $TMP_FILE || continue |
127 | PREV_VAL=$(grep -w $CFG $TMP_FILE) | |
128 | NEW_VAL=$(grep -w $CFG $MERGE_FILE) | |
a9b72284 AR |
129 | BUILTIN_FLAG=false |
130 | if [ "$BUILTIN" = "true" ] && [ "${NEW_VAL#CONFIG_*=}" = "m" ] && [ "${PREV_VAL#CONFIG_*=}" = "y" ]; then | |
131 | echo Previous value: $PREV_VAL | |
132 | echo New value: $NEW_VAL | |
133 | echo -y passed, will not demote y to m | |
134 | echo | |
135 | BUILTIN_FLAG=true | |
136 | elif [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then | |
137 | echo Value of $CFG is redefined by fragment $ORIG_MERGE_FILE: | |
4b5f7214 | 138 | echo Previous value: $PREV_VAL |
139 | echo New value: $NEW_VAL | |
140 | echo | |
3a975b8c | 141 | elif [ "$WARNREDUN" = "true" ]; then |
a9b72284 AR |
142 | echo Value of $CFG is redundant by fragment $ORIG_MERGE_FILE: |
143 | fi | |
144 | if [ "$BUILTIN_FLAG" = "false" ]; then | |
145 | sed -i "/$CFG[ =]/d" $TMP_FILE | |
146 | else | |
147 | sed -i "/$CFG[ =]/d" $MERGE_FILE | |
4b5f7214 | 148 | fi |
149 | done | |
150 | cat $MERGE_FILE >> $TMP_FILE | |
151 | done | |
152 | ||
bc8f8f5f | 153 | if [ "$RUNMAKE" = "false" ]; then |
ed94fea5 | 154 | cp -T -- "$TMP_FILE" "$KCONFIG_CONFIG" |
4b5f7214 | 155 | echo "#" |
ed94fea5 | 156 | echo "# merged configuration written to $KCONFIG_CONFIG (needs make)" |
4b5f7214 | 157 | echo "#" |
158 | clean_up | |
159 | exit | |
160 | fi | |
161 | ||
a45c7dfb JS |
162 | # If we have an output dir, setup the O= argument, otherwise leave |
163 | # it blank, since O=. will create an unnecessary ./source softlink | |
164 | OUTPUT_ARG="" | |
165 | if [ "$OUTPUT" != "." ] ; then | |
166 | OUTPUT_ARG="O=$OUTPUT" | |
167 | fi | |
168 | ||
169 | ||
4b5f7214 | 170 | # Use the merged file as the starting point for: |
171 | # alldefconfig: Fills in any missing symbols with Kconfig default | |
172 | # allnoconfig: Fills in any missing symbols with # CONFIG_* is not set | |
a45c7dfb | 173 | make KCONFIG_ALLCONFIG=$TMP_FILE $OUTPUT_ARG $ALLTARGET |
4b5f7214 | 174 | |
175 | ||
176 | # Check all specified config values took (might have missed-dependency issues) | |
6bbe4385 | 177 | for CFG in $(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $TMP_FILE); do |
4b5f7214 | 178 | |
320d41bb | 179 | REQUESTED_VAL=$(grep -w -e "$CFG" $TMP_FILE) |
ed94fea5 | 180 | ACTUAL_VAL=$(grep -w -e "$CFG" "$KCONFIG_CONFIG") |
4b5f7214 | 181 | if [ "x$REQUESTED_VAL" != "x$ACTUAL_VAL" ] ; then |
182 | echo "Value requested for $CFG not in final .config" | |
183 | echo "Requested value: $REQUESTED_VAL" | |
184 | echo "Actual value: $ACTUAL_VAL" | |
185 | echo "" | |
186 | fi | |
187 | done | |
188 | ||
189 | clean_up |