libs/vr/libdvr/exported_apis.lds - third_party/android/platform/frameworks/native - Git at Google

 {
   global:
     # Whitelist the function to load the dvr api.
     dvrGetApi;

   local:
     # Hide everything else.
     *;
 };
	{
	global:
	# Whitelist the function to load the dvr api.
	dvrGetApi;

	local:
	# Hide everything else.
	*;
	};