tools/lib/lockdep/tests: Run lockdep tests a second time under Valgrind

This improves test coverage.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Waiman Long <longman@redhat.com>
Cc: johannes.berg@intel.com
Cc: tj@kernel.org
Link: https://lkml.kernel.org/r/20181207011148.251812-5-bvanassche@acm.orgSigned-off-by: Ingo Molnar <mingo@kernel.org>

tools/lib/lockdep/run_tests.sh

@@ -31,3 +31,17 @@ find tests -name '*.c' | sort | while read -r i; do
 	fi
 	rm -f "tests/$testname"
 done
+
+find tests -name '*.c' | sort | while read -r i; do
+	testname=$(basename "$i" .c)
+	echo -ne "(PRELOAD + Valgrind) $testname... "
+	if gcc -o "tests/$testname" -pthread -Iinclude "$i" &&
+		{ timeout 10 valgrind --read-var-info=yes ./lockdep "./tests/$testname" >& "tests/${testname}.vg.out"; true; } &&
+		"tests/${testname}.sh" < "tests/${testname}.vg.out" &&
+		! grep -Eq '(^==[0-9]*== (Invalid |Uninitialised ))|Mismatched free|Source and destination overlap| UME ' "tests/${testname}.vg.out"; then
+		echo "PASSED!"
+	else
+		echo "FAILED!"
+	fi
+	rm -f "tests/$testname"
+done