Initial commit: Linux kernel 4.19 for Unplugged OS

tools/memory-model/scripts/checkalllitmus.sh

@@ -0,0 +1,73 @@
+#!/bin/sh
+#
+# Run herd tests on all .litmus files in the specified directory (which
+# defaults to litmus-tests) and check each file's result against a "Result:"
+# comment within that litmus test.  If the verification result does not
+# match that specified in the litmus test, this script prints an error
+# message prefixed with "^^^".  It also outputs verification results to
+# a file whose name is that of the specified litmus test, but with ".out"
+# appended.
+#
+# Usage:
+#	checkalllitmus.sh [ directory ]
+#
+# The LINUX_HERD_OPTIONS environment variable may be used to specify
+# arguments to herd, whose default is defined by the checklitmus.sh script.
+# Thus, one would normally run this in the directory containing the memory
+# model, specifying the pathname of the litmus test to check.
+#
+# This script makes no attempt to run the litmus tests concurrently.
+#
+# 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>
+
+litmusdir=${1-litmus-tests}
+if test -d "$litmusdir" -a -r "$litmusdir" -a -x "$litmusdir"
+then
+	:
+else
+	echo ' --- ' error: $litmusdir is not an accessible directory
+	exit 255
+fi
+
+# Find the checklitmus script.  If it is not where we expect it, then
+# assume that the caller has the PATH environment variable set
+# appropriately.
+if test -x scripts/checklitmus.sh
+then
+	clscript=scripts/checklitmus.sh
+else
+	clscript=checklitmus.sh
+fi
+
+# Run the script on all the litmus tests in the specified directory
+ret=0
+for i in litmus-tests/*.litmus
+do
+	if ! $clscript $i
+	then
+		ret=1
+	fi
+done
+if test "$ret" -ne 0
+then
+	echo " ^^^ VERIFICATION MISMATCHES"
+else
+	echo All litmus tests verified as was expected.
+fi
+exit $ret

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