audk/MdePkg/Library/PeiMemoryLib/MemLib.c

72 lines
2.2 KiB
C

/** @file
Base Memory Library functions implementation bases on PeiServcie.
Copyright (c) 2006 - 2018, 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 wraps the gPS->CopyMem ().
@param DestinationBuffer The pointer to the destination buffer of the memory copy.
@param SourceBuffer The pointer to the source buffer of the memory copy.
@param Length The number of bytes to copy from SourceBuffer to DestinationBuffer.
@return DestinationBuffer.
**/
VOID *
EFIAPI
InternalMemCopyMem (
OUT VOID *Destination,
IN CONST VOID *Source,
IN UINTN Length
)
{
(*GetPeiServicesTablePointer ())->CopyMem (
Destination,
(VOID*)Source,
Length
);
return Destination;
}
/**
Fills a target buffer with a byte value, and returns the target buffer.
This function wraps the gPS->SetMem ().
@param Buffer Memory to set.
@param Size The number of bytes to set.
@param Value Value of the set operation.
@return Buffer.
**/
VOID *
EFIAPI
InternalMemSetMem (
OUT VOID *Buffer,
IN UINTN Size,
IN UINT8 Value
)
{
(*GetPeiServicesTablePointer ())->SetMem (
Buffer,
Size,
Value
);
return Buffer;
}