3 Copyright (c) 2006, Intel Corporation
4 All rights reserved. This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution. The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
18 Pei Core Load Image Support
26 IN EFI_PEI_SERVICES
**PeiServices
,
27 IN EFI_FFS_FILE_HEADER
*PeimFileHeader
,
34 Routine for loading file image.
38 PeiServices - The PEI core services table.
39 PeimFileHeader - Pointer to the FFS file header of the image.
40 EntryPoint - Pointer to entry point of specified image file for output.
44 Status - EFI_SUCCESS - Image is successfully loaded.
45 EFI_NOT_FOUND - Fail to locate necessary PPI
46 Others - Fail to load file.
52 EFI_PEI_FV_FILE_LOADER_PPI
*FvLoadFilePpi
;
53 //#ifdef EFI_NT_EMULATOR
54 // EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
55 // NT_PEI_LOAD_FILE_PPI *PeiNtService;
57 EFI_PHYSICAL_ADDRESS ImageAddress
;
59 EFI_PHYSICAL_ADDRESS ImageEntryPoint
;
60 EFI_TE_IMAGE_HEADER
*TEImageHeader
;
66 // Try to find a PE32 section.
68 Status
= PeiCoreFfsFindSectionData (
74 // If we didn't find a PE32 section, try to find a TE section.
76 if (EFI_ERROR (Status
)) {
77 Status
= PeiCoreFfsFindSectionData (
80 (VOID
**) &TEImageHeader
82 if (EFI_ERROR (Status
) || TEImageHeader
== NULL
) {
84 // There was not a PE32 or a TE section, so assume that it's a Compressed section
85 // and use the LoadFile
87 Status
= PeiCoreLocatePpi (
88 &gEfiPeiFvFileLoaderPpiGuid
,
91 (VOID
**)&FvLoadFilePpi
93 if (EFI_ERROR (Status
)) {
97 Status
= FvLoadFilePpi
->FvLoadFile (
105 if (EFI_ERROR (Status
)) {
106 return EFI_NOT_FOUND
;
110 // Retrieve the entry point from the PE/COFF image header
112 Status
= PeCoffLoaderGetEntryPoint ((VOID
*)(UINTN
)ImageAddress
, EntryPoint
);
113 if (EFI_ERROR (Status
)) {
114 return EFI_NOT_FOUND
;
118 // Retrieve the entry point from the TE image header
120 ImageAddress
= (EFI_PHYSICAL_ADDRESS
) (UINTN
) TEImageHeader
;
121 *EntryPoint
= (VOID
*)((UINTN
) TEImageHeader
+ sizeof (EFI_TE_IMAGE_HEADER
) +
122 TEImageHeader
->AddressOfEntryPoint
- TEImageHeader
->StrippedSize
);
126 // Retrieve the entry point from the PE/COFF image header
128 ImageAddress
= (EFI_PHYSICAL_ADDRESS
) (UINTN
) Pe32Data
;
129 Status
= PeCoffLoaderGetEntryPoint (Pe32Data
, EntryPoint
);
130 if (EFI_ERROR (Status
)) {
131 return EFI_NOT_FOUND
;
136 // Print debug message: Loading PEIM at 0x12345678 EntryPoint=0x12345688 Driver.efi
138 DEBUG ((EFI_D_INFO
| EFI_D_LOAD
, "Loading PEIM at 0x%08x EntryPoint=0x%08x ", Pe32Data
, *EntryPoint
));
140 EFI_IMAGE_DATA_DIRECTORY
* DirectoryEntry
;
141 EFI_IMAGE_DEBUG_DIRECTORY_ENTRY
* DebugEntry
;
145 BOOLEAN FileNameFound
;
147 CHAR8 AsciiBuffer
[512];
148 VOID
*CodeViewEntryPointer
;
150 EFI_IMAGE_DOS_HEADER
*DosHeader
;
151 EFI_IMAGE_NT_HEADERS
*PeHeader
;
154 // Pe32Data is NULL when load TE image
157 if (TEImageHeader
== NULL
) {
158 DosHeader
= (EFI_IMAGE_DOS_HEADER
*)Pe32Data
;
159 if (DosHeader
->e_magic
== EFI_IMAGE_DOS_SIGNATURE
) {
161 // DOS image header is present, so read the PE header after the DOS image header
163 PeHeader
= (EFI_IMAGE_NT_HEADERS
*) ((UINTN
) Pe32Data
+ (UINTN
) ((DosHeader
->e_lfanew
) & 0x0ffff));
166 // DOS image header is not present, so PE header is at the image base
168 PeHeader
= (EFI_IMAGE_NT_HEADERS
*) Pe32Data
;
173 // Find the codeview info in the image and display the file name
176 // Per the PE/COFF spec, you can't assume that a given data directory
177 // is present in the image. You have to check the NumberOfRvaAndSizes in
178 // the optional header to verify a desired directory entry is there.
181 DirectoryEntry
= NULL
;
183 if (TEImageHeader
== NULL
) {
184 if (PeHeader
->OptionalHeader
.NumberOfRvaAndSizes
> EFI_IMAGE_DIRECTORY_ENTRY_DEBUG
) {
185 DirectoryEntry
= (EFI_IMAGE_DATA_DIRECTORY
*) &(PeHeader
->OptionalHeader
.DataDirectory
[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG
]);
186 DebugEntry
= (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY
*) ((UINTN
) ImageAddress
+ DirectoryEntry
->VirtualAddress
);
189 if (TEImageHeader
->DataDirectory
[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG
].VirtualAddress
!= 0) {
190 DirectoryEntry
= &TEImageHeader
->DataDirectory
[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG
];
191 TEImageAdjust
= sizeof (EFI_TE_IMAGE_HEADER
) - TEImageHeader
->StrippedSize
;
192 DebugEntry
= (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY
*)((UINTN
) TEImageHeader
+
193 TEImageHeader
->DataDirectory
[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG
].VirtualAddress
+
198 if (DebugEntry
!= NULL
&& DirectoryEntry
!= NULL
) {
199 for (DirCount
= 0; DirCount
< DirectoryEntry
->Size
; DirCount
++, DebugEntry
++) {
200 if (DebugEntry
->Type
== EFI_IMAGE_DEBUG_TYPE_CODEVIEW
) {
201 if (DebugEntry
->SizeOfData
> 0) {
202 CodeViewEntryPointer
= (VOID
*) ((UINTN
) DebugEntry
->RVA
+ (UINTN
) ImageAddress
+ (UINTN
)TEImageAdjust
);
203 switch (* (UINT32
*) CodeViewEntryPointer
) {
204 case CODEVIEW_SIGNATURE_NB10
:
205 AsciiString
= (CHAR8
*) CodeViewEntryPointer
+ sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY
);
208 case CODEVIEW_SIGNATURE_RSDS
:
209 AsciiString
= (CHAR8
*) CodeViewEntryPointer
+ sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY
);
216 if (AsciiString
!= NULL
) {
217 FileNameFound
= FALSE
;
218 for (Index
= 0, Index1
= 0; AsciiString
[Index
] != 0; Index
++) {
219 if (AsciiString
[Index
] == '\\') {
221 FileNameFound
= TRUE
;
226 for (Index
= Index1
+ 1; AsciiString
[Index
] != '.'; Index
++) {
227 AsciiBuffer
[Index
- (Index1
+ 1)] = AsciiString
[Index
];
229 AsciiBuffer
[Index
- (Index1
+ 1)] = 0;
230 DEBUG ((EFI_D_INFO
| EFI_D_LOAD
, "%a.efi", AsciiBuffer
));
240 DEBUG ((EFI_D_INFO
| EFI_D_LOAD
, "\n"));