1 files changed, 87 insertions, 0 deletions
diff --git a/tools/memory-model/scripts/cmplitmushist.sh b/tools/memory-model/scripts/cmplitmushist.sh
new file mode 100644
index 000000000000..0f498aeeccf5
--- /dev/null
+++ b/tools/memory-model/scripts/cmplitmushist.sh
@@ -0,0 +1,87 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Compares .out and .out.new files for each name on standard input,
+# one full pathname per line.  Outputs comparison results followed by
+# a summary.
+#
+# sh cmplitmushist.sh
+
+T=/tmp/cmplitmushist.sh.$$
+trap 'rm -rf $T' 0
+mkdir $T
+
+# comparetest oldpath newpath
+perfect=0
+obsline=0
+noobsline=0
+obsresult=0
+badcompare=0
+comparetest () {
+	grep -v 'maxresident)k\|minor)pagefaults\|^Time' $1 > $T/oldout
+	grep -v 'maxresident)k\|minor)pagefaults\|^Time' $2 > $T/newout
+	if cmp -s $T/oldout $T/newout && grep -q '^Observation' $1
+	then
+		echo Exact output match: $2
+		perfect=`expr "$perfect" + 1`
+		return 0
+	fi
+
+	grep '^Observation' $1 > $T/oldout
+	grep '^Observation' $2 > $T/newout
+	if test -s $T/oldout -o -s $T/newout
+	then
+		if cmp -s $T/oldout $T/newout
+		then
+			echo Matching Observation result and counts: $2
+			obsline=`expr "$obsline" + 1`
+			return 0
+		fi
+	else
+		echo Missing Observation line "(e.g., herd7 timeout)": $2
+		noobsline=`expr "$noobsline" + 1`
+		return 0
+	fi
+
+	grep '^Observation' $1 | awk '{ print $3 }' > $T/oldout
+	grep '^Observation' $2 | awk '{ print $3 }' > $T/newout
+	if cmp -s $T/oldout $T/newout
+	then
+		echo Matching Observation Always/Sometimes/Never result: $2
+		obsresult=`expr "$obsresult" + 1`
+		return 0
+	fi
+	echo ' !!!' Result changed: $2
+	badcompare=`expr "$badcompare" + 1`
+	return 1
+}
+
+sed -e 's/^.*$/comparetest &.out &.out.new/' > $T/cmpscript
+. $T/cmpscript > $T/cmpscript.out
+cat $T/cmpscript.out
+
+echo ' ---' Summary: 1>&2
+grep '!!!' $T/cmpscript.out 1>&2
+if test "$perfect" -ne 0
+then
+	echo Exact output matches: $perfect 1>&2
+fi
+if test "$obsline" -ne 0
+then
+	echo Matching Observation result and counts: $obsline 1>&2
+fi
+if test "$noobsline" -ne 0
+then
+	echo Missing Observation line "(e.g., herd7 timeout)": $noobsline 1>&2
+fi
+if test "$obsresult" -ne 0
+then
+	echo Matching Observation Always/Sometimes/Never result: $obsresult 1>&2
+fi
+if test "$badcompare" -ne 0
+then
+	echo "!!!" Result changed: $badcompare 1>&2
+	exit 1
+fi
+
+exit 0