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1/** @file\r
2 Tiano PE/COFF loader.\r
3\r
4 Copyright (c) 2006, Intel Corporation<BR>\r
5 All rights reserved. This program and the accompanying materials\r
6 are licensed and made available under the terms and conditions of the BSD License\r
7 which accompanies this distribution. The full text of the license may be found at\r
8 http://opensource.org/licenses/bsd-license.php\r
9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13 Module Name: PeCoffGetEntryPoint.c\r
14\r
15**/\r
16\r
17\r
18\r
19/**\r
20 Loads a PE/COFF image into memory.\r
21\r
22 @param Pe32Data Pointer to a PE/COFF Image\r
23 \r
24 @param EntryPoint Pointer to the entry point of the PE/COFF image\r
25\r
26 @retval EFI_SUCCESS if the EntryPoint was returned\r
27 @retval EFI_INVALID_PARAMETER if the EntryPoint could not be found from Pe32Data\r
28\r
29**/\r
30RETURN_STATUS\r
31EFIAPI\r
32PeCoffLoaderGetEntryPoint (\r
33 IN VOID *Pe32Data,\r
34 IN OUT VOID **EntryPoint\r
35 )\r
36{\r
37 EFI_IMAGE_DOS_HEADER *DosHeader;\r
38 EFI_IMAGE_NT_HEADERS *PeHeader;\r
39\r
40 DosHeader = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r
41 if (DosHeader->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r
42 //\r
43 // DOS image header is present, so read the PE header after the DOS image header\r
44 //\r
45 PeHeader = (EFI_IMAGE_NT_HEADERS *) ((UINTN) Pe32Data + (UINTN) ((DosHeader->e_lfanew) & 0x0ffff));\r
46 } else {\r
47 //\r
48 // DOS image header is not present, so PE header is at the image base\r
49 //\r
50 PeHeader = (EFI_IMAGE_NT_HEADERS *) Pe32Data;\r
51 }\r
52 *EntryPoint = (VOID *) ((UINTN) Pe32Data + (UINTN) (PeHeader->OptionalHeader.AddressOfEntryPoint & 0x0ffffffff));\r
53 return RETURN_SUCCESS;\r
54}\r