diff --git a/corlib/System.Runtime.InteropServices/CharSet.cs b/corlib/System.Runtime.InteropServices/CharSet.cs
index d506e2a..a9ef5a9 100644
--- a/corlib/System.Runtime.InteropServices/CharSet.cs
+++ b/corlib/System.Runtime.InteropServices/CharSet.cs
@@ -21,6 +21,7 @@
#if !LOCALTEST
namespace System.Runtime.InteropServices {
+ [Serializable]
public enum CharSet {
None = 1,
Ansi = 2,
diff --git a/corlib/System.Runtime.InteropServices/LayoutKind.cs b/corlib/System.Runtime.InteropServices/LayoutKind.cs
new file mode 100644
index 0000000..1266c4f
--- /dev/null
+++ b/corlib/System.Runtime.InteropServices/LayoutKind.cs
@@ -0,0 +1,32 @@
+// Copyright (c) 2012 DotNetAnywhere
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#if !LOCALTEST
+
+namespace System.Runtime.InteropServices {
+ [Serializable]
+ public enum LayoutKind {
+ Sequential = 0,
+ Explicit = 2,
+ Auto = 3
+ }
+}
+
+#endif
diff --git a/corlib/System.Runtime.InteropServices/StructLayoutAttribute.cs b/corlib/System.Runtime.InteropServices/StructLayoutAttribute.cs
new file mode 100644
index 0000000..5d3c9bc
--- /dev/null
+++ b/corlib/System.Runtime.InteropServices/StructLayoutAttribute.cs
@@ -0,0 +1,48 @@
+// Copyright (c) 2012 DotNetAnywhere
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#if !LOCALTEST
+
+namespace System.Runtime.InteropServices {
+
+ [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct, Inherited = false)]
+ public sealed class StructLayoutAttribute : Attribute {
+
+ private readonly LayoutKind _value;
+
+ public LayoutKind Value { get { return _value; } }
+
+ public int Pack;
+
+ public int Size;
+
+ public CharSet CharSet;
+
+ public StructLayoutAttribute(LayoutKind layoutKind) {
+ _value = layoutKind;
+ }
+
+ public StructLayoutAttribute(short layoutKind) {
+ _value = (LayoutKind)layoutKind;
+ }
+ }
+}
+
+#endif
\ No newline at end of file
diff --git a/corlib/System/AttributeTargets.cs b/corlib/System/AttributeTargets.cs
index 77a9818..ea55153 100644
--- a/corlib/System/AttributeTargets.cs
+++ b/corlib/System/AttributeTargets.cs
@@ -22,6 +22,7 @@
namespace System {
+ [Flags, Serializable]
public enum AttributeTargets {
Assembly = 0x00000001,
Module = 0x00000002,
diff --git a/corlib/System/SerializableAttribute.cs b/corlib/System/SerializableAttribute.cs
new file mode 100644
index 0000000..32a0249
--- /dev/null
+++ b/corlib/System/SerializableAttribute.cs
@@ -0,0 +1,31 @@
+// Copyright (c) 2012 DotNetAnywhere
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#if !LOCALTEST
+
+namespace System {
+
+ [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Enum | AttributeTargets.Delegate, Inherited = false)]
+ public sealed class SerializableAttribute : Attribute {
+ }
+
+}
+
+#endif
\ No newline at end of file
diff --git a/corlib/corlib.csproj b/corlib/corlib.csproj
index 0f58710..a1fcf10 100644
--- a/corlib/corlib.csproj
+++ b/corlib/corlib.csproj
@@ -135,6 +135,7 @@
+
@@ -145,7 +146,9 @@
+
+
@@ -229,6 +232,7 @@
+