[tip:locking/core] tools/lib/lockdep/tests: Run lockdep tests a second time under Valgrind

[tip-bot for Bart Van Assche]

Commit-ID:  2b28a8609ec9891e37607ae20688b4ab34f2778c
Gitweb:     https://git.kernel.org/tip/2b28a8609ec9891e37607ae20688b4ab34f2778c
Author:     Bart Van Assche <bvanassche@xxxxxxx>
AuthorDate: Thu, 6 Dec 2018 17:11:28 -0800
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 11 Dec 2018 14:54:49 +0100

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

This improves test coverage.

Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Sasha Levin <sasha.levin@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Waiman Long <longman@xxxxxxxxxx>
Cc: johannes.berg@xxxxxxxxx
Cc: tj@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20181207011148.251812-5-bvanassche@xxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 tools/lib/lockdep/run_tests.sh | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tools/lib/lockdep/run_tests.sh b/tools/lib/lockdep/run_tests.sh
index bc36178329a8..c8fbd0306960 100755
--- a/tools/lib/lockdep/run_tests.sh
+++ b/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