1 files changed, 59 insertions, 0 deletions
diff --git a/MdePkg/Library/DxeServicesTableLib/DxeServicesTableLib.c b/MdePkg/Library/DxeServicesTableLib/DxeServicesTableLib.c
new file mode 100644
index 0000000000..cda2b9639c
--- /dev/null
+++ b/MdePkg/Library/DxeServicesTableLib/DxeServicesTableLib.c
@@ -0,0 +1,59 @@
+/** @file
+  DXE Library.
+
+  Copyright (c) 2006, Intel Corporation<BR>
+  All rights reserved. This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which 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.
+
+  Module Name:  DxeServicesTableLib.c
+
+**/
+
+
+//
+// Include common header file for this module.
+//
+#include "CommonHeader.h"
+
+//
+// Cache copy of the DXE Services Table
+//
+EFI_DXE_SERVICES  *gDS      = NULL;
+
+/**
+  The constructor function caches the pointer of DXE Services Table.
+
+  The constructor function caches the pointer of DXE Services Table.
+  It will ASSERT() if that operation fails.
+  It will ASSERT() if the pointer of DXE Services Table is NULL.
+  It will always return EFI_SUCCESS.
+
+  @param  ImageHandle   The firmware allocated handle for the EFI image.
+  @param  SystemTable   A pointer to the EFI System Table.
+
+  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+DxeServicesTableLibConstructor (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  EFI_STATUS  Status;
+
+  //
+  // Cache copy of the DXE Services Table
+  //
+  Status = EfiGetSystemConfigurationTable (&gEfiDxeServicesTableGuid, (VOID **) &gDS);
+  ASSERT_EFI_ERROR (Status);
+  ASSERT (gDS != NULL);
+
+  return Status;
+}