mirror of https://github.com/acidanthera/audk.git
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/** @file
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Tiano PE/COFF loader.
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Copyright (c) 2006, 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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Module Name: PeCoffGetEntryPoint.c
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**/
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/**
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Loads a PE/COFF image into memory.
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@param Pe32Data Pointer to a PE/COFF Image
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@param EntryPoint Pointer to the entry point of the PE/COFF image
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@retval EFI_SUCCESS if the EntryPoint was returned
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@retval EFI_INVALID_PARAMETER if the EntryPoint could not be found from Pe32Data
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**/
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RETURN_STATUS
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EFIAPI
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PeCoffLoaderGetEntryPoint (
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IN VOID *Pe32Data,
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IN OUT VOID **EntryPoint
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)
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{
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EFI_IMAGE_DOS_HEADER *DosHeader;
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EFI_IMAGE_NT_HEADERS *PeHeader;
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DosHeader = (EFI_IMAGE_DOS_HEADER *)Pe32Data;
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if (DosHeader->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
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//
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// DOS image header is present, so read the PE header after the DOS image header
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//
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PeHeader = (EFI_IMAGE_NT_HEADERS *) ((UINTN) Pe32Data + (UINTN) ((DosHeader->e_lfanew) & 0x0ffff));
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} else {
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//
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// DOS image header is not present, so PE header is at the image base
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//
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PeHeader = (EFI_IMAGE_NT_HEADERS *) Pe32Data;
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}
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*EntryPoint = (VOID *) ((UINTN) Pe32Data + (UINTN) (PeHeader->OptionalHeader.AddressOfEntryPoint & 0x0ffffffff));
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return RETURN_SUCCESS;
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}
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