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#!/bin/sh
#
# Run a herd test and check the result against a "Result:" comment within
# the litmus test. If the verification result does not match that specified
# in the litmus test, this script prints an error message prefixed with
# "^^^" and exits with a non-zero status. It also outputs verification
# results to a file whose name is that of the specified litmus test, but
# with ".out" appended.
#
# Usage:
# checklitmus.sh file.litmus
#
# The LINUX_HERD_OPTIONS environment variable may be used to specify
# arguments to herd, which default to "-conf linux-kernel.cfg". Thus,
# one would normally run this in the directory containing the memory model,
# specifying the pathname of the litmus test to check.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright IBM Corporation, 2018
#
# Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
litmus=$1
herdoptions=${LINUX_HERD_OPTIONS--conf linux-kernel.cfg}
if test -f "$litmus" -a -r "$litmus"
then
:
else
echo ' --- ' error: \"$litmus\" is not a readable file
exit 255
fi
if grep -q '^ \* Result: ' $litmus
then
outcome=`grep -m 1 '^ \* Result: ' $litmus | awk '{ print $3 }'`
else
outcome=specified
fi
echo Herd options: $herdoptions > $litmus.out
/usr/bin/time herd7 -o ~/tmp $herdoptions $litmus >> $litmus.out 2>&1
grep "Herd options:" $litmus.out
grep '^Observation' $litmus.out
if grep -q '^Observation' $litmus.out
then
:
else
cat $litmus.out
echo ' ^^^ Verification error'
echo ' ^^^ Verification error' >> $litmus.out 2>&1
exit 255
fi
if test "$outcome" = DEADLOCK
then
echo grep 3 and 4
if grep '^Observation' $litmus.out | grep -q 'Never 0 0$'
then
ret=0
else
echo " ^^^ Unexpected non-$outcome verification"
echo " ^^^ Unexpected non-$outcome verification" >> $litmus.out 2>&1
ret=1
fi
elif grep '^Observation' $litmus.out | grep -q $outcome || test "$outcome" = Maybe
then
ret=0
else
echo " ^^^ Unexpected non-$outcome verification"
echo " ^^^ Unexpected non-$outcome verification" >> $litmus.out 2>&1
ret=1
fi
tail -2 $litmus.out | head -1
exit $ret
|
