Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 86 insertions, 0 deletions

diff --git a/tools/memory-model/scripts/checklitmus.sh b/tools/memory-model/scripts/checklitmus.sh
new file mode 100755
index 000000000..bf12a75c0
--- /dev/null
+++ b/tools/memory-model/scripts/checklitmus.sh
@@ -0,0 +1,86 @@
+#!/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