From d8aad87c88882a980e8c43b78d24d8fa760ba5fc Mon Sep 17 00:00:00 2001
From: Radek Doulik <rodo@xamarin.com>
Date: Wed, 5 Nov 2014 13:00:37 +0100
Subject: [PATCH] [linker] blacklist System.Net.Sockets.MulticastOption fields

 - merge fix for https://bugzilla.xamarin.com/show_bug.cgi?id=21578
   the MulticastOption's 'private IPAddress local' field was
   removed by linker and the app crashed later at runtime.
 - when System.Net.Sockets.MulticastOption object
   is passed to System.Net.Sockets.Socket.SetSocketOption
   and thru it to System.Net.Sockets.Socket.SetSocketOption_internal
   it accesses passed object fields
   (thru few more native calls).
---
 mcs/tools/linker/Descriptors/System.xml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mcs/tools/linker/Descriptors/System.xml b/mcs/tools/linker/Descriptors/System.xml
index 181a3ebc36c..f70c020412d 100644
--- a/mcs/tools/linker/Descriptors/System.xml
+++ b/mcs/tools/linker/Descriptors/System.xml
@@ -13,6 +13,7 @@
 		<type fullname="System.Net.SocketAddress" />
 		<type fullname="System.Net.Sockets.LingerOption" />
 		<type fullname="System.Net.Sockets.Socket" />
+		<type fullname="System.Net.Sockets.MulticastOption" preserve="fields" />
 		<type fullname="System.Net.Sockets.Socket/SocketAsyncResult" preserve="fields" />
 		<type fullname="System.Net.Sockets.SocketException" />
 	</assembly>
-- 
2.11.4.GIT