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diff --git a/StdLib/LibC/Main/ByteSwap.c b/StdLib/LibC/Main/ByteSwap.c
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+++ b/StdLib/LibC/Main/ByteSwap.c
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+/** @file
+  Byte Swap routines for endian-nes conversions.
+
+  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+  This program and the accompanying materials are licensed and made available under
+  the terms and conditions of the BSD License that accompanies this distribution.
+  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php.
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+**/
+#include  <Library/BaseLib.h>
+#include  <LibConfig.h>
+
+#include <sys/bswap.h>
+
+// Undefine macro versions of the functions to be defined below.
+#undef  bswap16
+#undef  bswap32
+#undef  bswap64
+
+/**
+Switches the endianness of a 16-bit integer.
+
+This function swaps the bytes in a 16-bit unsigned value to switch the value
+from little endian to big endian or vice versa. The byte swapped value is
+returned.
+
+@param  Value     A 16-bit unsigned value.
+
+@return The byte swapped Value.
+
+**/
+uint16_t bswap16(uint16_t Value)
+{
+  return SwapBytes16(Value);
+}
+
+/**
+Switches the endianness of a 32-bit integer.
+
+This function swaps the bytes in a 32-bit unsigned value to switch the value
+from little endian to big endian or vice versa. The byte swapped value is
+returned.
+
+@param  Value A 32-bit unsigned value.
+
+@return The byte swapped Value.
+
+**/
+uint32_t bswap32(uint32_t Value)
+{
+  return SwapBytes32(Value);
+}
+
+/**
+Switches the endianness of a 64-bit integer.
+
+This function swaps the bytes in a 64-bit unsigned value to switch the value
+from little endian to big endian or vice versa. The byte swapped value is
+returned.
+
+@param  Value A 64-bit unsigned value.
+
+@return The byte swapped Value.
+
+**/
+uint64_t bswap64(uint64_t Value)
+{
+  return SwapBytes64(Value);
+}