tools/testing/selftests/rcutorture/bin/configinit.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0+
   3 #
   4 # Usage: configinit.sh config-spec-file results-dir
   5 #
   6 # Create a .config file from the spec file.  Run from the kernel source tree.
   7 # Exits with 0 if all went well, with 1 if all went well but the config
   8 # did not match, and some other number for other failures.
   9 #
  10 # The first argument is the .config specification file, which contains
  11 # desired settings, for example, "CONFIG_NO_HZ=y".  For best results,
  12 # this should be a full pathname.
  13 #
  14 # Copyright (C) IBM Corporation, 2013
  15 #
  16 # Authors: Paul E. McKenney <paulmck@linux.ibm.com>
  17
  18 T=${TMPDIR-/tmp}/configinit.sh.$$
  19 trap 'rm -rf $T' 0
  20 mkdir $T
  21
  22 # Capture config spec file.
  23
  24 c=$1
  25 resdir=$2
  26
  27 sed -e 's/^\(CONFIG[0-9A-Z_]*\)=.*$/grep -v "^# \1" |/' < $c > $T/u.sh
  28 sed -e 's/^\(CONFIG[0-9A-Z_]*=\).*$/grep -v \1 |/' < $c >> $T/u.sh
  29 grep '^grep' < $T/u.sh > $T/upd.sh
  30 echo "cat - $c" >> $T/upd.sh
  31 if test -z "$TORTURE_TRUST_MAKE"
  32 then
  33         make clean > $resdir/Make.clean 2>&1
  34 fi
  35 make $TORTURE_DEFCONFIG > $resdir/Make.defconfig.out 2>&1
  36 mv .config .config.sav
  37 sh $T/upd.sh < .config.sav > .config
  38 cp .config .config.new
  39 yes '' | make oldconfig > $resdir/Make.oldconfig.out 2> $resdir/Make.oldconfig.err
  40
  41 # verify new config matches specification.
  42 configcheck.sh .config $c
  43
  44 exit 0