1 files changed, 55 insertions, 0 deletions
diff --git a/libnativeloader/open_system_library.cpp b/libnativeloader/open_system_library.cpp
new file mode 100644
index 0000000000..63175aa91f
--- /dev/null
+++ b/libnativeloader/open_system_library.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "nativeloader_test"
+
+#include <dlfcn.h>
+#include <log/log.h>
+
+#ifdef ART_TARGET_ANDROID
+#include "nativeloader/dlext_namespaces.h"
+#endif
+
+namespace android {
+
+extern "C" {
+
+// TODO(b/268440756): Find a way to reuse it from libnativebridge.
+void* OpenSystemLibrary(const char* path, int flags) {
+#ifdef ART_TARGET_ANDROID
+  // The system namespace is called "default" for binaries in /system and
+  // "system" for those in the Runtime APEX. Try "system" first since
+  // "default" always exists.
+  // TODO(b/185587109): Get rid of this error prone logic.
+  android_namespace_t* system_ns = android_get_exported_namespace("system");
+  if (system_ns == nullptr) {
+    system_ns = android_get_exported_namespace("default");
+    const char* message = "Failed to get system namespace for loading %s";
+    LOG_ALWAYS_FATAL_IF(system_ns == nullptr, message, path);
+  }
+  const android_dlextinfo dlextinfo = {
+      .flags = ANDROID_DLEXT_USE_NAMESPACE,
+      .library_namespace = system_ns,
+  };
+  return android_dlopen_ext(path, flags, &dlextinfo);
+#else
+  return dlopen(path, flags);
+#endif
+}
+
+}  // extern "C"
+
+}  // namespace android