1 #!/bin/sh 1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0 2 # SPDX-License-Identifier: GPL-2.0
3 # 3 #
4 # merge_config.sh - Takes a list of config fr 4 # merge_config.sh - Takes a list of config fragment values, and merges
5 # them one by one. Provides warnings on overr 5 # them one by one. Provides warnings on overridden values, and specified
6 # values that did not make it to the resultin 6 # values that did not make it to the resulting .config file (due to missed
7 # dependencies or config symbol removal). 7 # dependencies or config symbol removal).
8 # 8 #
9 # Portions reused from kconf_check and genera 9 # Portions reused from kconf_check and generate_cfg:
10 # http://git.yoctoproject.org/cgit/cgit.cgi/y 10 # http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/kconf_check
11 # http://git.yoctoproject.org/cgit/cgit.cgi/y 11 # http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/generate_cfg
12 # 12 #
13 # Copyright (c) 2009-2010 Wind River Systems, 13 # Copyright (c) 2009-2010 Wind River Systems, Inc.
14 # Copyright 2011 Linaro 14 # Copyright 2011 Linaro
15 15
16 set -e <<
17 <<
18 clean_up() { 16 clean_up() {
19 rm -f $TMP_FILE 17 rm -f $TMP_FILE
20 rm -f $MERGE_FILE 18 rm -f $MERGE_FILE
>> 19 exit
21 } 20 }
>> 21 trap clean_up HUP INT TERM
22 22
23 usage() { 23 usage() {
24 echo "Usage: $0 [OPTIONS] [CONFIG [... 24 echo "Usage: $0 [OPTIONS] [CONFIG [...]]"
25 echo " -h display this help text" 25 echo " -h display this help text"
26 echo " -m only merge the fragments 26 echo " -m only merge the fragments, do not execute the make command"
27 echo " -n use allnoconfig instead 27 echo " -n use allnoconfig instead of alldefconfig"
28 echo " -r list redundant entries w 28 echo " -r list redundant entries when merging fragments"
29 echo " -y make builtin have preced 29 echo " -y make builtin have precedence over modules"
30 echo " -O dir to put generated out 30 echo " -O dir to put generated output files. Consider setting \$KCONFIG_CONFIG instead."
31 echo " -s strict mode. Fail if the <<
32 echo " -Q disable warning messages <<
33 echo 31 echo
34 echo "Used prefix: '$CONFIG_PREFIX'. Y 32 echo "Used prefix: '$CONFIG_PREFIX'. You can redefine it with \$CONFIG_ environment variable."
35 } 33 }
36 34
37 RUNMAKE=true 35 RUNMAKE=true
38 ALLTARGET=alldefconfig 36 ALLTARGET=alldefconfig
39 WARNREDUN=false 37 WARNREDUN=false
40 BUILTIN=false 38 BUILTIN=false
41 OUTPUT=. 39 OUTPUT=.
42 STRICT=false <<
43 CONFIG_PREFIX=${CONFIG_-CONFIG_} 40 CONFIG_PREFIX=${CONFIG_-CONFIG_}
44 WARNOVERRIDE=echo <<
45 41
46 while true; do 42 while true; do
47 case $1 in 43 case $1 in
48 "-n") 44 "-n")
49 ALLTARGET=allnoconfig 45 ALLTARGET=allnoconfig
50 shift 46 shift
51 continue 47 continue
52 ;; 48 ;;
53 "-m") 49 "-m")
54 RUNMAKE=false 50 RUNMAKE=false
55 shift 51 shift
56 continue 52 continue
57 ;; 53 ;;
58 "-h") 54 "-h")
59 usage 55 usage
60 exit 56 exit
61 ;; 57 ;;
62 "-r") 58 "-r")
63 WARNREDUN=true 59 WARNREDUN=true
64 shift 60 shift
65 continue 61 continue
66 ;; 62 ;;
67 "-y") 63 "-y")
68 BUILTIN=true 64 BUILTIN=true
69 shift 65 shift
70 continue 66 continue
71 ;; 67 ;;
72 "-O") 68 "-O")
73 if [ -d $2 ];then 69 if [ -d $2 ];then
74 OUTPUT=$(echo $2 | sed 70 OUTPUT=$(echo $2 | sed 's/\/*$//')
75 else 71 else
76 echo "output directory 72 echo "output directory $2 does not exist" 1>&2
77 exit 1 73 exit 1
78 fi 74 fi
79 shift 2 75 shift 2
80 continue 76 continue
81 ;; 77 ;;
82 "-s") <<
83 STRICT=true <<
84 shift <<
85 continue <<
86 ;; <<
87 "-Q") <<
88 WARNOVERRIDE=true <<
89 shift <<
90 continue <<
91 ;; <<
92 *) 78 *)
93 break 79 break
94 ;; 80 ;;
95 esac 81 esac
96 done 82 done
97 83
98 if [ "$#" -lt 1 ] ; then 84 if [ "$#" -lt 1 ] ; then
99 usage 85 usage
100 exit 86 exit
101 fi 87 fi
102 88
103 if [ -z "$KCONFIG_CONFIG" ]; then 89 if [ -z "$KCONFIG_CONFIG" ]; then
104 if [ "$OUTPUT" != . ]; then 90 if [ "$OUTPUT" != . ]; then
105 KCONFIG_CONFIG=$(readlink -m - 91 KCONFIG_CONFIG=$(readlink -m -- "$OUTPUT/.config")
106 else 92 else
107 KCONFIG_CONFIG=.config 93 KCONFIG_CONFIG=.config
108 fi 94 fi
109 fi 95 fi
110 96
111 INITFILE=$1 97 INITFILE=$1
112 shift; 98 shift;
113 99
114 if [ ! -r "$INITFILE" ]; then 100 if [ ! -r "$INITFILE" ]; then
115 echo "The base file '$INITFILE' does n 101 echo "The base file '$INITFILE' does not exist. Exit." >&2
116 exit 1 102 exit 1
117 fi 103 fi
118 104
119 MERGE_LIST=$* 105 MERGE_LIST=$*
120 SED_CONFIG_EXP1="s/^\(${CONFIG_PREFIX}[a-zA-Z0 106 SED_CONFIG_EXP1="s/^\(${CONFIG_PREFIX}[a-zA-Z0-9_]*\)=.*/\1/p"
121 SED_CONFIG_EXP2="s/^# \(${CONFIG_PREFIX}[a-zA- 107 SED_CONFIG_EXP2="s/^# \(${CONFIG_PREFIX}[a-zA-Z0-9_]*\) is not set$/\1/p"
122 108
123 TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX) 109 TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
124 MERGE_FILE=$(mktemp ./.merge_tmp.config.XXXXXX 110 MERGE_FILE=$(mktemp ./.merge_tmp.config.XXXXXXXXXX)
125 111
126 echo "Using $INITFILE as base" 112 echo "Using $INITFILE as base"
127 <<
128 trap clean_up EXIT <<
129 <<
130 cat $INITFILE > $TMP_FILE 113 cat $INITFILE > $TMP_FILE
131 114
132 # Merge files, printing warnings on overridden 115 # Merge files, printing warnings on overridden values
133 for ORIG_MERGE_FILE in $MERGE_LIST ; do 116 for ORIG_MERGE_FILE in $MERGE_LIST ; do
134 echo "Merging $ORIG_MERGE_FILE" 117 echo "Merging $ORIG_MERGE_FILE"
135 if [ ! -r "$ORIG_MERGE_FILE" ]; then 118 if [ ! -r "$ORIG_MERGE_FILE" ]; then
136 echo "The merge file '$ORIG_ME 119 echo "The merge file '$ORIG_MERGE_FILE' does not exist. Exit." >&2
137 exit 1 120 exit 1
138 fi 121 fi
139 cat $ORIG_MERGE_FILE > $MERGE_FILE 122 cat $ORIG_MERGE_FILE > $MERGE_FILE
140 CFG_LIST=$(sed -n -e "$SED_CONFIG_EXP1 123 CFG_LIST=$(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $MERGE_FILE)
141 124
142 for CFG in $CFG_LIST ; do 125 for CFG in $CFG_LIST ; do
143 grep -q -w $CFG $TMP_FILE || c 126 grep -q -w $CFG $TMP_FILE || continue
144 PREV_VAL=$(grep -w $CFG $TMP_F 127 PREV_VAL=$(grep -w $CFG $TMP_FILE)
145 NEW_VAL=$(grep -w $CFG $MERGE_ 128 NEW_VAL=$(grep -w $CFG $MERGE_FILE)
146 BUILTIN_FLAG=false 129 BUILTIN_FLAG=false
147 if [ "$BUILTIN" = "true" ] && 130 if [ "$BUILTIN" = "true" ] && [ "${NEW_VAL#CONFIG_*=}" = "m" ] && [ "${PREV_VAL#CONFIG_*=}" = "y" ]; then
148 ${WARNOVERRIDE} Previo !! 131 echo Previous value: $PREV_VAL
149 ${WARNOVERRIDE} New va !! 132 echo New value: $NEW_VAL
150 ${WARNOVERRIDE} -y pas !! 133 echo -y passed, will not demote y to m
151 ${WARNOVERRIDE} !! 134 echo
152 BUILTIN_FLAG=true 135 BUILTIN_FLAG=true
153 elif [ "x$PREV_VAL" != "x$NEW_ 136 elif [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
154 ${WARNOVERRIDE} Value !! 137 echo Value of $CFG is redefined by fragment $ORIG_MERGE_FILE:
155 ${WARNOVERRIDE} Previo !! 138 echo Previous value: $PREV_VAL
156 ${WARNOVERRIDE} New va !! 139 echo New value: $NEW_VAL
157 ${WARNOVERRIDE} !! 140 echo
158 if [ "$STRICT" = "true <<
159 STRICT_MODE_VI <<
160 fi <<
161 elif [ "$WARNREDUN" = "true" ] 141 elif [ "$WARNREDUN" = "true" ]; then
162 ${WARNOVERRIDE} Value !! 142 echo Value of $CFG is redundant by fragment $ORIG_MERGE_FILE:
163 fi 143 fi
164 if [ "$BUILTIN_FLAG" = "false" 144 if [ "$BUILTIN_FLAG" = "false" ]; then
165 sed -i "/$CFG[ =]/d" $ 145 sed -i "/$CFG[ =]/d" $TMP_FILE
166 else 146 else
167 sed -i "/$CFG[ =]/d" $ 147 sed -i "/$CFG[ =]/d" $MERGE_FILE
168 fi 148 fi
169 done 149 done
170 # In case the previous file lacks a ne <<
171 echo >> $TMP_FILE <<
172 cat $MERGE_FILE >> $TMP_FILE 150 cat $MERGE_FILE >> $TMP_FILE
173 done 151 done
174 152
175 if [ "$STRICT_MODE_VIOLATED" = "true" ]; then <<
176 echo "The fragment redefined a value a <<
177 exit 1 <<
178 fi <<
179 <<
180 if [ "$RUNMAKE" = "false" ]; then 153 if [ "$RUNMAKE" = "false" ]; then
181 cp -T -- "$TMP_FILE" "$KCONFIG_CONFIG" 154 cp -T -- "$TMP_FILE" "$KCONFIG_CONFIG"
182 echo "#" 155 echo "#"
183 echo "# merged configuration written t 156 echo "# merged configuration written to $KCONFIG_CONFIG (needs make)"
184 echo "#" 157 echo "#"
>> 158 clean_up
185 exit 159 exit
186 fi 160 fi
187 161
188 # If we have an output dir, setup the O= argum 162 # If we have an output dir, setup the O= argument, otherwise leave
189 # it blank, since O=. will create an unnecessa 163 # it blank, since O=. will create an unnecessary ./source softlink
190 OUTPUT_ARG="" 164 OUTPUT_ARG=""
191 if [ "$OUTPUT" != "." ] ; then 165 if [ "$OUTPUT" != "." ] ; then
192 OUTPUT_ARG="O=$OUTPUT" 166 OUTPUT_ARG="O=$OUTPUT"
193 fi 167 fi
194 168
195 169
196 # Use the merged file as the starting point fo 170 # Use the merged file as the starting point for:
197 # alldefconfig: Fills in any missing symbols w 171 # alldefconfig: Fills in any missing symbols with Kconfig default
198 # allnoconfig: Fills in any missing symbols wi 172 # allnoconfig: Fills in any missing symbols with # CONFIG_* is not set
199 make KCONFIG_ALLCONFIG=$TMP_FILE $OUTPUT_ARG $ 173 make KCONFIG_ALLCONFIG=$TMP_FILE $OUTPUT_ARG $ALLTARGET
200 174
201 175
202 # Check all specified config values took (migh 176 # Check all specified config values took (might have missed-dependency issues)
203 for CFG in $(sed -n -e "$SED_CONFIG_EXP1" -e " 177 for CFG in $(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $TMP_FILE); do
204 178
205 REQUESTED_VAL=$(grep -w -e "$CFG" $TMP 179 REQUESTED_VAL=$(grep -w -e "$CFG" $TMP_FILE)
206 ACTUAL_VAL=$(grep -w -e "$CFG" "$KCONF !! 180 ACTUAL_VAL=$(grep -w -e "$CFG" "$KCONFIG_CONFIG")
207 if [ "x$REQUESTED_VAL" != "x$ACTUAL_VA 181 if [ "x$REQUESTED_VAL" != "x$ACTUAL_VAL" ] ; then
208 echo "Value requested for $CFG 182 echo "Value requested for $CFG not in final .config"
209 echo "Requested value: $REQUE 183 echo "Requested value: $REQUESTED_VAL"
210 echo "Actual value: $ACTUA 184 echo "Actual value: $ACTUAL_VAL"
211 echo "" 185 echo ""
212 fi 186 fi
213 done 187 done
>> 188
>> 189 clean_up
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