Enable loading native libraries with RTLD_DEEPBIND

base/test/native_library_test_utils.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_TEST_NATIVE_LIBRARY_TEST_UTILS_H_
+#define BASE_TEST_NATIVE_LIBRARY_TEST_UTILS_H_
+
+#if defined(OS_WIN)
+#define NATIVE_LIBRARY_TEST_ALWAYS_EXPORT __declspec(dllexport)
+#else
+#define NATIVE_LIBRARY_TEST_ALWAYS_EXPORT __attribute__((visibility("default")))
+#endif
+
+extern "C" {
+
+extern NATIVE_LIBRARY_TEST_ALWAYS_EXPORT int g_native_library_exported_value;
+
+// A function which increments an internal counter value and returns its value.
+// The first call returns 1, then 2, etc.
+NATIVE_LIBRARY_TEST_ALWAYS_EXPORT int NativeLibraryTestIncrement();
+
+}  // extern "C"
+
+#endif  // BASE_TEST_NATIVE_LIBRARY_TEST_UTILS_H_