mirror of https://github.com/acidanthera/audk.git
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/** @file
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This module loads an image to memory for IA32 Cpu architecture.
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Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "DxeIpl.h"
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/**
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Support routine for the PE/COFF Loader that reads a buffer from a PE/COFF file
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@param FileHandle The handle to the PE/COFF file
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@param FileOffset The offset, in bytes, into the file to read
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@param ReadSize The number of bytes to read from the file starting at
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FileOffset
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@param Buffer A pointer to the buffer to read the data into.
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@retval EFI_SUCCESS ReadSize bytes of data were read into Buffer from the
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PE/COFF file starting at FileOffset
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**/
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EFI_STATUS
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PeiImageRead (
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IN VOID *FileHandle,
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IN UINTN FileOffset,
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IN OUT UINTN *ReadSize,
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OUT VOID *Buffer
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)
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{
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UINT8 *Destination32;
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UINT8 *Source32;
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UINTN Length;
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Destination32 = Buffer;
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Source32 = (UINT8 *) ((UINTN) FileHandle + FileOffset);
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//
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// This function assumes 32-bit alignment to increase performance
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//
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Length = *ReadSize;
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while (Length-- != 0) {
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*(Destination32++) = *(Source32++);
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}
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return EFI_SUCCESS;
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}
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