1 #!/bin/bash 2 # 3 # Usage: configinit.sh config-spec-file build-output-dir results-dir 4 # 5 # Create a .config file from the spec file. Run from the kernel source tree. 6 # Exits with 0 if all went well, with 1 if all went well but the config 7 # did not match, and some other number for other failures. 8 # 9 # The first argument is the .config specification file, which contains 10 # desired settings, for example, "CONFIG_NO_HZ=y". For best results, 11 # this should be a full pathname. 12 # 13 # The second argument is a optional path to a build output directory, 14 # for example, "O=/tmp/foo". If this argument is omitted, the .config 15 # file will be generated directly in the current directory. 16 # 17 # This program is free software; you can redistribute it and/or modify 18 # it under the terms of the GNU General Public License as published by 19 # the Free Software Foundation; either version 2 of the License, or 20 # (at your option) any later version. 21 # 22 # This program is distributed in the hope that it will be useful, 23 # but WITHOUT ANY WARRANTY; without even the implied warranty of 24 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 25 # GNU General Public License for more details. 26 # 27 # You should have received a copy of the GNU General Public License 28 # along with this program; if not, you can access it online at 29 # http://www.gnu.org/licenses/gpl-2.0.html. 30 # 31 # Copyright (C) IBM Corporation, 2013 32 # 33 # Authors: Paul E. McKenney <paulmck (at] linux.vnet.ibm.com> 34 35 T=${TMPDIR-/tmp}/configinit.sh.$$ 36 trap 'rm -rf $T' 0 37 mkdir $T 38 39 # Capture config spec file. 40 41 c=$1 42 buildloc=$2 43 resdir=$3 44 builddir= 45 if echo $buildloc | grep -q '^O=' 46 then 47 builddir=`echo $buildloc | sed -e 's/^O=//'` 48 if test ! -d $builddir 49 then 50 mkdir $builddir 51 fi 52 else 53 echo Bad build directory: \"$buildloc\" 54 exit 2 55 fi 56 57 sed -e 's/^\(CONFIG[0-9A-Z_]*\)=.*$/grep -v "^# \1" |/' < $c > $T/u.sh 58 sed -e 's/^\(CONFIG[0-9A-Z_]*=\).*$/grep -v \1 |/' < $c >> $T/u.sh 59 grep '^grep' < $T/u.sh > $T/upd.sh 60 echo "cat - $c" >> $T/upd.sh 61 make mrproper 62 make $buildloc distclean > $resdir/Make.distclean 2>&1 63 make $buildloc $TORTURE_DEFCONFIG > $resdir/Make.defconfig.out 2>&1 64 mv $builddir/.config $builddir/.config.sav 65 sh $T/upd.sh < $builddir/.config.sav > $builddir/.config 66 cp $builddir/.config $builddir/.config.new 67 yes '' | make $buildloc oldconfig > $resdir/Make.oldconfig.out 2> $resdir/Make.oldconfig.err 68 69 # verify new config matches specification. 70 configcheck.sh $builddir/.config $c 71 72 exit 0 73
