1 files changed, 60 insertions, 0 deletions
diff --git a/tools/memory-model/scripts/checklitmushist.sh b/tools/memory-model/scripts/checklitmushist.sh
new file mode 100755
index 0000000000..406ecfc0ae
--- /dev/null
+++ b/tools/memory-model/scripts/checklitmushist.sh
@@ -0,0 +1,60 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Reruns the C-language litmus tests previously run that match the
+# specified criteria, and compares the result to that of the previous
+# runs from initlitmushist.sh and/or newlitmushist.sh.
+#
+# sh checklitmushist.sh
+#
+# Run from the Linux kernel tools/memory-model directory.
+# See scripts/parseargs.sh for list of arguments.
+#
+# Copyright IBM Corporation, 2018
+#
+# Author: Paul E. McKenney <paulmck@linux.ibm.com>
+
+. scripts/parseargs.sh
+
+T=/tmp/checklitmushist.sh.$$
+trap 'rm -rf $T' 0
+mkdir $T
+
+if test -d litmus
+then
+	:
+else
+	echo Run scripts/initlitmushist.sh first, need litmus repo.
+	exit 1
+fi
+
+# Create the results directory and populate it with subdirectories.
+# The initial output is created here to avoid clobbering the output
+# generated earlier.
+mkdir $T/results
+find litmus -type d -print | ( cd $T/results; sed -e 's/^/mkdir -p /' | sh )
+
+# Create the list of litmus tests already run, then remove those that
+# are excluded by this run's --procs argument.
+( cd $LKMM_DESTDIR; find litmus -name '*.litmus.out' -print ) |
+	sed -e 's/\.out$//' |
+	xargs -r grep -L "^P${LKMM_PROCS}"> $T/list-C-already
+xargs < $T/list-C-already -r grep -L "^P${LKMM_PROCS}" > $T/list-C-short
+
+# Redirect output, run tests, then restore destination directory.
+destdir="$LKMM_DESTDIR"
+LKMM_DESTDIR=$T/results; export LKMM_DESTDIR
+scripts/runlitmushist.sh < $T/list-C-short > $T/runlitmushist.sh.out 2>&1
+LKMM_DESTDIR="$destdir"; export LKMM_DESTDIR
+
+# Move the newly generated .litmus.out files to .litmus.out.new files
+# in the destination directory.
+cdir=`pwd`
+ddir=`awk -v c="$cdir" -v d="$LKMM_DESTDIR" \
+	'END { if (d ~ /^\//) print d; else print c "/" d; }' < /dev/null`
+( cd $T/results; find litmus -type f -name '*.litmus.out' -print |
+  sed -e 's,^.*$,cp & '"$ddir"'/&.new,' | sh )
+
+sed < $T/list-C-short -e 's,^,'"$LKMM_DESTDIR/"',' |
+	sh scripts/cmplitmushist.sh
+exit $?