2281eb6f48
Problems have been encountered because some of the source files have execute permission set. This can cause git to report them as changed when they are checked out onto a file system with inherited permissions. This has been seen using Cygwin, MinGW and PowerShell Git. This patch makes no change to source file content, and only aims to correct the file modes/permissions. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Evan Lloyd <evan.lloyd@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19778 6f19259b-4bc3-4df7-8a09-765794883524
64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/** @file
|
|
CopyMem() implementation.
|
|
|
|
The following BaseMemoryLib instances contain the same copy of this file:
|
|
|
|
BaseMemoryLib
|
|
BaseMemoryLibMmx
|
|
BaseMemoryLibSse2
|
|
BaseMemoryLibRepStr
|
|
BaseMemoryLibOptDxe
|
|
BaseMemoryLibOptPei
|
|
PeiMemoryLib
|
|
UefiMemoryLib
|
|
|
|
Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
|
|
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.
|
|
|
|
**/
|
|
|
|
#include "MemLibInternals.h"
|
|
|
|
/**
|
|
Copies a source buffer to a destination buffer, and returns the destination buffer.
|
|
|
|
This function copies Length bytes from SourceBuffer to DestinationBuffer, and returns
|
|
DestinationBuffer. The implementation must be reentrant, and it must handle the case
|
|
where SourceBuffer overlaps DestinationBuffer.
|
|
|
|
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 of the memory copy.
|
|
@param SourceBuffer Pointer to the source buffer of the memory copy.
|
|
@param Length Number of bytes to copy from SourceBuffer to DestinationBuffer.
|
|
|
|
@return DestinationBuffer.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
CopyMem (
|
|
OUT VOID *DestinationBuffer,
|
|
IN CONST VOID *SourceBuffer,
|
|
IN UINTN Length
|
|
)
|
|
{
|
|
if (Length == 0) {
|
|
return DestinationBuffer;
|
|
}
|
|
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)DestinationBuffer));
|
|
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)SourceBuffer));
|
|
|
|
if (DestinationBuffer == SourceBuffer) {
|
|
return DestinationBuffer;
|
|
}
|
|
return InternalMemCopyMem (DestinationBuffer, SourceBuffer, Length);
|
|
}
|