Add in the 1st version of ECP.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2832 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Foundation/Library/Dxe/EfiDriverLib/Ebc/PerformancePrimitives.c

@@ -0,0 +1,52 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+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:
+
+  PerformancePrimitives.c
+
+Abstract:
+
+  Support for Performance library
+
+--*/
+
+#include "Tiano.h"  // for ASSERT macro
+#include "TianoCommon.h"
+
+EFI_STATUS
+GetTimerValue (
+  OUT UINT64    *TimerValue
+  )
+/*++
+
+Routine Description:
+
+  Set TimerValue to 0, which is not expected to be run.
+
+Arguments:
+
+  TimerValue  - Timer value for output
+
+Returns:
+
+  EFI_SUCCESS - Should not be reached.
+
+--*/
+{
+  //
+  // Should not be used for EBC, so assert.
+  //
+  *TimerValue = 0;
+  ASSERT (FALSE);
+
+  return EFI_SUCCESS;
+}