1 files changed, 21 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Security/DynamicSecurityMethodAttribute.cs b/src/mscorlib/src/System/Security/DynamicSecurityMethodAttribute.cs
new file mode 100644
index 0000000000..83be902a2c
--- /dev/null
+++ b/src/mscorlib/src/System/Security/DynamicSecurityMethodAttribute.cs
@@ -0,0 +1,21 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Runtime.InteropServices;
+
+namespace System.Security
+{
+    // DynamicSecurityMethodAttribute:
+    //  All methods that use StackCrawlMark should be marked with this attribute. This attribute
+    //  disables inlining of the calling method to allow stackwalking to find the exact caller.
+    //
+    //  This attribute used to indicate that the target method requires space for a security object 
+    //  to be allocated on the callers stack. It is not used for this purpose anymore because of security 
+    //  stackwalks are not ever done in CoreCLR.
+    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor, AllowMultiple = true, Inherited = false)]
+    internal sealed class DynamicSecurityMethodAttribute : Attribute
+    {
+        public DynamicSecurityMethodAttribute() { }
+    }
+}