1 files changed, 63 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseMemoryLib/CompareMemWrapper.c b/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseMemoryLib/CompareMemWrapper.c
new file mode 100644
index 0000000..a1a27cf
--- /dev/null
+++ b/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseMemoryLib/CompareMemWrapper.c
@@ -0,0 +1,63 @@
+/*++
+
+Copyright (c) 2004 - 2006, 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:
+
+  CompareMemWrapper.c
+  
+Abstract: 
+  
+  CompareMem() implementation.
+
+--*/
+
+#include "BaseMemoryLibInternal.h"
+
+/**
+  Compares the contents of two buffers.
+
+  This function compares Length bytes of SourceBuffer to Length bytes of DestinationBuffer.
+  If all Length bytes of the two buffers are identical, then 0 is returned.  Otherwise, the
+  value returned is the first mismatched byte in SourceBuffer subtracted from the first
+  mismatched byte in DestinationBuffer.
+  If Length > 0 and DestinationBuffer is NULL and Length > 0, then ASSERT().
+  If Length > 0 and SourceBuffer is NULL and Length > 0, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT(). 
+  If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT(). 
+
+
+  @param  DestinationBuffer Pointer to the destination buffer to compare.
+  @param  SourceBuffer      Pointer to the source buffer to compare.
+  @param  Length            Number of bytes to compare.
+
+  @return 0                 All Length bytes of the two buffers are identical.
+  @retval Non-zero          The first mismatched byte in SourceBuffer subtracted from the first
+                            mismatched byte in DestinationBuffer.
+
+**/
+INTN
+EFIAPI
+GlueCompareMem (
+  IN CONST VOID  *DestinationBuffer,
+  IN CONST VOID  *SourceBuffer,
+  IN UINTN       Length
+  )
+{
+  if (Length == 0 || DestinationBuffer == SourceBuffer) {
+    return 0;
+  }
+  ASSERT (DestinationBuffer != NULL);
+  ASSERT (SourceBuffer != NULL);
+  ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)DestinationBuffer));
+  ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)SourceBuffer));
+
+  return InternalMemCompareMem (DestinationBuffer, SourceBuffer, Length);
+}