MdePkg/Library/DxeMemoryLib/ZeroMemWrapper.c

   1 /** @file
   2   ZeroMem() implementation.
   3
   4   Copyright (c) 2006, Intel Corporation<BR>
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13   The following BaseMemoryLib instances share the same version of this file:
  14
  15     BaseMemoryLib
  16     BaseMemoryLibMmx
  17     BaseMemoryLibSse2
  18     BaseMemoryLibRepStr
  19     PeiMemoryLib
  20     DxeMemoryLib
  21
  22 **/
  23
  24
  25 #include "MemLibInternals.h"
  26
  27 /**
  28   Fills a target buffer with zeros, and returns the target buffer.
  29
  30   This function fills Length bytes of Buffer with zeros, and returns Buffer.
  31   If Length > 0 and Buffer is NULL, then ASSERT().
  32   If Length is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT().
  33
  34   @param  Buffer      Pointer to the target buffer to fill with zeros.
  35   @param  Length      Number of bytes in Buffer to fill with zeros.
  36
  37   @return Buffer.
  38
  39 **/
  40 VOID *
  41 EFIAPI
  42 ZeroMem (
  43   OUT VOID  *Buffer,
  44   IN UINTN  Length
  45   )
  46 {
  47   ASSERT (!(Buffer == NULL && Length > 0));
  48   ASSERT (Length <= (MAX_ADDRESS - (UINTN)Buffer + 1));
  49   return InternalMemZeroMem (Buffer, Length);
  50 }