1 files changed, 50 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/LowLevelConsole.cs b/src/mscorlib/src/System/LowLevelConsole.cs
new file mode 100644
index 0000000000..3aba3db4d1
--- /dev/null
+++ b/src/mscorlib/src/System/LowLevelConsole.cs
@@ -0,0 +1,50 @@
+// 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.Text;
+using System.Security;
+using Microsoft.Win32;
+using Microsoft.Win32.SafeHandles;
+
+namespace System
+{
+    //
+    // Simple limited console class for internal printf-style debugging in mscorlib
+    // and low-level tests that just want to depend on mscorlib.
+    //
+
+    public static class Console
+    {
+        [SecurityCritical]
+        static SafeFileHandle _outputHandle;
+
+        [SecuritySafeCritical]
+        static Console()
+        {
+            _outputHandle = new SafeFileHandle(Win32Native.GetStdHandle(Win32Native.STD_OUTPUT_HANDLE), false);
+        }
+
+        [SecuritySafeCritical]
+        public static unsafe void Write(string s)
+        {
+            byte[] bytes = Encoding.UTF8.GetBytes(s);
+
+            fixed (byte * pBytes = bytes)
+            {
+                int bytesWritten;
+                Win32Native.WriteFile(_outputHandle, pBytes, bytes.Length, out bytesWritten, IntPtr.Zero);
+            }
+        }
+
+        public static void WriteLine(string s)
+        {
+            Write(s + Environment.NewLine);
+        }
+
+        public static void WriteLine()
+        {
+            Write(Environment.NewLine);
+        }
+     }
+}