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-rw-r--r--tools/memory-model/scripts/checklitmus.sh86
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diff --git a/tools/memory-model/scripts/checklitmus.sh b/tools/memory-model/scripts/checklitmus.sh
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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:
+# sh 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