Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/memory-model/scripts/judgelitmus.sh b/tools/memory-model/scripts/judgelitmus.sh
new file mode 100755
index 0000000..0cc6387
--- /dev/null
+++ b/tools/memory-model/scripts/judgelitmus.sh
@@ -0,0 +1,78 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Given a .litmus test and the corresponding .litmus.out file, check
+# the .litmus.out file against the "Result:" comment to judge whether
+# the test ran correctly.
+#
+# Usage:
+# judgelitmus.sh file.litmus
+#
+# Run this in the directory containing the memory model, specifying the
+# pathname of the litmus test to check.
+#
+# Copyright IBM Corporation, 2018
+#
+# Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+
+litmus=$1
+
+if test -f "$litmus" -a -r "$litmus"
+then
+ :
+else
+ echo ' --- ' error: \"$litmus\" is not a readable file
+ exit 255
+fi
+if test -f "$LKMM_DESTDIR/$litmus".out -a -r "$LKMM_DESTDIR/$litmus".out
+then
+ :
+else
+ echo ' --- ' error: \"$LKMM_DESTDIR/$litmus\".out 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
+
+grep '^Observation' $LKMM_DESTDIR/$litmus.out
+if grep -q '^Observation' $LKMM_DESTDIR/$litmus.out
+then
+ :
+else
+ echo ' !!! Verification error' $litmus
+ if ! grep -q '!!!' $LKMM_DESTDIR/$litmus.out
+ then
+ echo ' !!! Verification error' >> $LKMM_DESTDIR/$litmus.out 2>&1
+ fi
+ exit 255
+fi
+if test "$outcome" = DEADLOCK
+then
+ if grep '^Observation' $LKMM_DESTDIR/$litmus.out | grep -q 'Never 0 0$'
+ then
+ ret=0
+ else
+ echo " !!! Unexpected non-$outcome verification" $litmus
+ if ! grep -q '!!!' $LKMM_DESTDIR/$litmus.out
+ then
+ echo " !!! Unexpected non-$outcome verification" >> $LKMM_DESTDIR/$litmus.out 2>&1
+ fi
+ ret=1
+ fi
+elif grep '^Observation' $LKMM_DESTDIR/$litmus.out | grep -q $outcome || test "$outcome" = Maybe
+then
+ ret=0
+else
+ echo " !!! Unexpected non-$outcome verification" $litmus
+ if ! grep -q '!!!' $LKMM_DESTDIR/$litmus.out
+ then
+ echo " !!! Unexpected non-$outcome verification" >> $LKMM_DESTDIR/$litmus.out 2>&1
+ fi
+ ret=1
+fi
+tail -2 $LKMM_DESTDIR/$litmus.out | head -1
+exit $ret