MdePkg/Library/BaseMemoryLib/ZeroMemWrapper.c

   1 /** @file
   2   ZeroMem() implementation.
   3
   4   The following BaseMemoryLib instances contain the same copy of this file:
   5     BaseMemoryLib
   6     BaseMemoryLibMmx
   7     BaseMemoryLibSse2
   8     BaseMemoryLibRepStr
   9     BaseMemoryLibOptDxe
  10     BaseMemoryLibOptPei
  11     PeiMemoryLib
  12     DxeMemoryLib
  13
  14   Copyright (c) 2006, Intel Corporation<BR>
  15   All rights reserved. This program and the accompanying materials
  16   are licensed and made available under the terms and conditions of the BSD License
  17   which accompanies this distribution.  The full text of the license may be found at
  18   http://opensource.org/licenses/bsd-license.php
  19
  20   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  21   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  22
  23 **/
  24
  25
  26
  27
  28 #include "MemLibInternals.h"
  29
  30 /**
  31   Fills a target buffer with zeros, and returns the target buffer.
  32
  33   This function fills Length bytes of Buffer with zeros, and returns Buffer.
  34   If Length > 0 and Buffer is NULL, then ASSERT().
  35   If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
  36
  37   @param  Buffer      Pointer to the target buffer to fill with zeros.
  38   @param  Length      Number of bytes in Buffer to fill with zeros.
  39
  40   @return Buffer.
  41
  42 **/
  43 VOID *
  44 EFIAPI
  45 ZeroMem (
  46   OUT VOID  *Buffer,
  47   IN UINTN  Length
  48   )
  49 {
  50   ASSERT (!(Buffer == NULL && Length > 0));
  51   ASSERT (Length <= (MAX_ADDRESS - (UINTN)Buffer + 1));
  52   return InternalMemZeroMem (Buffer, Length);
  53 }