blob: 33f18d40670de65680db3abc852e209d284099fa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
#!/bin/sh
# merge_config.sh - Takes a list of config fragment values, and merges
# them one by one. Provides warnings on overridden values, and specified
# values that did not make it to the resulting .config file (due to missed
# dependencies or config symbol removal).
#
# Portions reused from kconf_check and generate_cfg:
# http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/kconf_check
# http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/generate_cfg
#
# Copyright (c) 2009-2010 Wind River Systems, Inc.
# Copyright 2011 Linaro
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
usage() {
echo "Usage: $0 [OPTIONS] [CONFIG [...]]"
echo " -h display this help text"
echo " -m only merge the fragments, do not execute the make command"
echo " -n use allnoconfig instead of alldefconfig"
echo " -x use allmodconfig instead of alldefconfig"
echo " -d debug. Don't cleanup temporary files"
}
MAKE_FLAG=true
ALLTARGET=alldefconfig
# There are two variables that impact where the .config will be dropped,
# O= and KBUILD_OUTPUT=. So we'll respect those variables and use them as
# an output directory as well. These two variables are not propagating
# automatically to the kernel build, so always explicitly setting O=
# and passing it to the kernel build ensures that it is respected.
if [ -n "$KBUILD_OUTPUT" ]; then
O=$KBUILD_OUTPUT
fi
if [ -z "$O" ]; then
O=.
fi
while true; do
case $1 in
"-n")
ALLTARGET=allnoconfig
shift
continue
;;
"-m")
MAKE_FLAG=false
shift
continue
;;
"-d")
DEBUG=true
shift
continue
;;
"-h")
usage
exit
;;
*)
break
;;
esac
done
clean_up() {
rm -f $TMP_FILE
exit
}
if [ -z "$DEBUG" ]; then
trap clean_up SIGHUP SIGINT SIGTERM
fi
MERGE_LIST=$*
SED_CONFIG_EXP="s/^\(# \)\{0,1\}\(CONFIG_[a-zA-Z0-9_]*\)[= ].*/\2/p"
TMP_FILE=$(mktemp $O/.tmp.config.XXXXXXXXXX)
# Merge files, printing warnings on overrided values
for MERGE_FILE in $MERGE_LIST ; do
echo "Merging $MERGE_FILE"
CFG_LIST=$(sed -n "$SED_CONFIG_EXP" $MERGE_FILE)
for CFG in $CFG_LIST ; do
grep -q -w $CFG $TMP_FILE
if [ $? -eq 0 ] ; then
PREV_VAL=$(grep -w $CFG $TMP_FILE)
NEW_VAL=$(grep -w $CFG $MERGE_FILE)
if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
echo Value of $CFG is redefined by fragment $MERGE_FILE:
echo Previous value: $PREV_VAL
echo New value: $NEW_VAL
echo
fi
sed -i "/$CFG[ =]/d" $TMP_FILE
fi
done
cat $MERGE_FILE >> $TMP_FILE
done
if [ "$MAKE_FLAG" = "false" ]; then
cp $TMP_FILE $O/.config
echo "#"
echo "# merged configuration written to $O/.config (needs make)"
echo "#"
if [ -z "$DEBUG" ]; then
clean_up
fi
exit
fi
# Use the merged file as the starting point for:
# alldefconfig: Fills in any missing symbols with Kconfig default
# allnoconfig: Fills in any missing symbols with # CONFIG_* is not set
make KCONFIG_ALLCONFIG=$TMP_FILE O=$O $ALLTARGET
# Check all specified config values took (might have missed-dependency issues)
for CFG in $(sed -n "$SED_CONFIG_EXP" $TMP_FILE); do
REQUESTED_VAL=$(sed -n "$SED_CONFIG_EXP" $TMP_FILE | grep -w -e "$CFG")
ACTUAL_VAL=$(sed -n "$SED_CONFIG_EXP" $O/.config | grep -w -e "$CFG")
if [ "x$REQUESTED_VAL" != "x$ACTUAL_VAL" ] ; then
echo "Value requested for $CFG not in final .config"
echo "Requested value: $REQUESTED_VAL"
echo "Actual value: $ACTUAL_VAL"
echo ""
fi
done
if [ -z "$DEBUG" ]; then
clean_up
fi
|
