From 830ca04ee29e1c28f0188b6091ae1fa7c8871551 Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Fri, 21 Dec 2012 13:31:07 +0000
Subject: [PATCH] tsan: add java rwlock test

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@170894 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/tsan/lit_tests/java_rwlock.cc | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 lib/tsan/lit_tests/java_rwlock.cc

diff --git a/lib/tsan/lit_tests/java_rwlock.cc b/lib/tsan/lit_tests/java_rwlock.cc
new file mode 100644
index 000000000..6dab614d5
--- /dev/null
+++ b/lib/tsan/lit_tests/java_rwlock.cc
@@ -0,0 +1,32 @@
+// RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s
+#include "java.h"
+
+jptr varaddr;
+jptr lockaddr;
+
+void *Thread(void *p) {
+  __tsan_java_mutex_read_lock(lockaddr);
+  *(int*)varaddr = 42;
+  __tsan_java_mutex_read_unlock(lockaddr);
+  return 0;
+}
+
+int main() {
+  int const kHeapSize = 1024 * 1024;
+  void *jheap = malloc(kHeapSize);
+  __tsan_java_init((jptr)jheap, kHeapSize);
+  const int kBlockSize = 16;
+  __tsan_java_alloc((jptr)jheap, kBlockSize);
+  varaddr = (jptr)jheap;
+  lockaddr = (jptr)jheap + 8;
+  pthread_t th;
+  pthread_create(&th, 0, Thread, 0);
+  __tsan_java_mutex_lock(lockaddr);
+  *(int*)varaddr = 43;
+  __tsan_java_mutex_unlock(lockaddr);
+  pthread_join(th, 0);
+  __tsan_java_free((jptr)jheap, kBlockSize);
+  return __tsan_java_fini();
+}
+
+// CHECK-NOT: WARNING: ThreadSanitizer: data race
-- 
2.11.4.GIT