2 files changed, 26 insertions, 0 deletions
diff --git a/lib/tsan/lit_tests/SharedLibs/lit.local.cfg b/lib/tsan/lit_tests/SharedLibs/lit.local.cfg
new file mode 100644
index 0000000000000..b3677c17a0f2a
--- /dev/null
+++ b/lib/tsan/lit_tests/SharedLibs/lit.local.cfg
@@ -0,0 +1,4 @@
+# Sources in this directory are compiled as shared libraries and used by
+# tests in parent directory.
+
+config.suffixes = []
diff --git a/lib/tsan/lit_tests/SharedLibs/load_shared_lib-so.cc b/lib/tsan/lit_tests/SharedLibs/load_shared_lib-so.cc
new file mode 100644
index 0000000000000..d05aa6a40d182
--- /dev/null
+++ b/lib/tsan/lit_tests/SharedLibs/load_shared_lib-so.cc
@@ -0,0 +1,22 @@
+//===----------- load_shared_lib-so.cc --------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of ThreadSanitizer (TSan), a race detector.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stddef.h>
+
+int GLOB_SHARED = 0;
+
+extern "C"
+void *write_from_so(void *unused) {
+  GLOB_SHARED++;
+  return NULL;
+}