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878ddf1f | 1 | /** @file\r |
2 | Tiano PE/COFF loader.\r | |
3 | \r | |
4 | Copyright (c) 2006, Intel Corporation\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: PeCoffLoader.c\r | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | \r | |
18 | \r | |
19 | \r | |
20 | STATIC\r | |
21 | RETURN_STATUS\r | |
22 | PeCoffLoaderGetPeHeader (\r | |
23 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
24 | OUT EFI_IMAGE_NT_HEADERS *PeHdr,\r | |
25 | OUT EFI_TE_IMAGE_HEADER *TeHdr\r | |
26 | );\r | |
27 | \r | |
28 | STATIC\r | |
29 | RETURN_STATUS\r | |
30 | PeCoffLoaderCheckImageType (\r | |
31 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
32 | IN EFI_IMAGE_NT_HEADERS *PeHdr,\r | |
33 | IN EFI_TE_IMAGE_HEADER *TeHdr\r | |
34 | );\r | |
35 | \r | |
36 | STATIC\r | |
37 | VOID *\r | |
38 | PeCoffLoaderImageAddress (\r | |
39 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
40 | IN UINTN Address\r | |
41 | );\r | |
42 | \r | |
43 | RETURN_STATUS\r | |
44 | PeCoffLoaderRelocateImageEx (\r | |
45 | IN UINT16 *Reloc,\r | |
46 | IN OUT CHAR8 *Fixup,\r | |
47 | IN OUT CHAR8 **FixupData,\r | |
48 | IN UINT64 Adjust\r | |
49 | );\r | |
50 | \r | |
51 | \r | |
52 | \r | |
53 | /**\r | |
54 | Retrieves the PE or TE Header from a PE/COFF or TE image.\r | |
55 | \r | |
56 | @param ImageContext The context of the image being loaded.\r | |
57 | \r | |
58 | @param PeHdr The buffer in which to return the PE header.\r | |
59 | \r | |
60 | @param TeHdr The buffer in which to return the TE header.\r | |
61 | \r | |
62 | @return\r | |
63 | RETURN_SUCCESS if the PE or TE Header is read,\r | |
64 | Otherwise, the error status from reading the PE/COFF or TE image using the ImageRead function.\r | |
65 | \r | |
66 | **/\r | |
67 | STATIC\r | |
68 | RETURN_STATUS\r | |
69 | PeCoffLoaderGetPeHeader (\r | |
70 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
71 | OUT EFI_IMAGE_NT_HEADERS *PeHdr,\r | |
72 | OUT EFI_TE_IMAGE_HEADER *TeHdr\r | |
73 | )\r | |
74 | {\r | |
75 | RETURN_STATUS Status;\r | |
76 | EFI_IMAGE_DOS_HEADER DosHdr;\r | |
77 | UINTN Size;\r | |
78 | \r | |
79 | ImageContext->IsTeImage = FALSE;\r | |
80 | //\r | |
81 | // Read the DOS image headers\r | |
82 | //\r | |
83 | Size = sizeof (EFI_IMAGE_DOS_HEADER);\r | |
84 | Status = ImageContext->ImageRead (\r | |
85 | ImageContext->Handle,\r | |
86 | 0,\r | |
87 | &Size,\r | |
88 | &DosHdr\r | |
89 | );\r | |
90 | if (RETURN_ERROR (Status)) {\r | |
91 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
92 | return Status;\r | |
93 | }\r | |
94 | \r | |
95 | ImageContext->PeCoffHeaderOffset = 0;\r | |
96 | if (DosHdr.e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r | |
97 | //\r | |
98 | // DOS image header is present, so read the PE header after the DOS image header\r | |
99 | //\r | |
100 | ImageContext->PeCoffHeaderOffset = DosHdr.e_lfanew;\r | |
101 | }\r | |
102 | //\r | |
103 | // Read the PE/COFF Header\r | |
104 | //\r | |
105 | Size = sizeof (EFI_IMAGE_NT_HEADERS);\r | |
106 | Status = ImageContext->ImageRead (\r | |
107 | ImageContext->Handle,\r | |
108 | ImageContext->PeCoffHeaderOffset,\r | |
109 | &Size,\r | |
110 | PeHdr\r | |
111 | );\r | |
112 | if (RETURN_ERROR (Status)) {\r | |
113 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
114 | return Status;\r | |
115 | }\r | |
116 | //\r | |
117 | // Check the PE/COFF Header Signature. If not, then try to read a TE header\r | |
118 | //\r | |
119 | if (PeHdr->Signature != EFI_IMAGE_NT_SIGNATURE) {\r | |
120 | Size = sizeof (EFI_TE_IMAGE_HEADER);\r | |
121 | Status = ImageContext->ImageRead (\r | |
122 | ImageContext->Handle,\r | |
123 | 0,\r | |
124 | &Size,\r | |
125 | TeHdr\r | |
126 | );\r | |
127 | if (TeHdr->Signature != EFI_TE_IMAGE_HEADER_SIGNATURE) {\r | |
128 | return RETURN_UNSUPPORTED;\r | |
129 | }\r | |
130 | \r | |
131 | ImageContext->IsTeImage = TRUE;\r | |
132 | }\r | |
133 | \r | |
134 | return RETURN_SUCCESS;\r | |
135 | }\r | |
136 | \r | |
137 | /**\r | |
138 | Checks the PE or TE header of a PE/COFF or TE image to determine if it supported.\r | |
139 | \r | |
140 | @param ImageContext The context of the image being loaded.\r | |
141 | \r | |
142 | @param PeHdr The buffer in which to return the PE header.\r | |
143 | \r | |
144 | @param TeHdr The buffer in which to return the TE header.\r | |
145 | \r | |
146 | @retval RETURN_SUCCESS if the PE/COFF or TE image is supported\r | |
147 | @retval RETURN_UNSUPPORTED of the PE/COFF or TE image is not supported.\r | |
148 | \r | |
149 | **/\r | |
150 | STATIC\r | |
151 | RETURN_STATUS\r | |
152 | PeCoffLoaderCheckImageType (\r | |
153 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
154 | IN EFI_IMAGE_NT_HEADERS *PeHdr,\r | |
155 | IN EFI_TE_IMAGE_HEADER *TeHdr\r | |
156 | )\r | |
157 | {\r | |
158 | //\r | |
159 | // See if the machine type is supported. We support a native machine type (IA-32/Itanium-based)\r | |
160 | // and the machine type for the Virtual Machine.\r | |
161 | //\r | |
162 | if (ImageContext->IsTeImage == FALSE) {\r | |
163 | ImageContext->Machine = PeHdr->FileHeader.Machine;\r | |
164 | } else {\r | |
165 | ImageContext->Machine = TeHdr->Machine;\r | |
166 | }\r | |
167 | \r | |
168 | if (!(EFI_IMAGE_MACHINE_TYPE_SUPPORTED (ImageContext->Machine))) {\r | |
169 | ImageContext->ImageError = IMAGE_ERROR_INVALID_MACHINE_TYPE;\r | |
170 | return RETURN_UNSUPPORTED;\r | |
171 | }\r | |
172 | \r | |
173 | //\r | |
174 | // See if the image type is supported. We support EFI Applications,\r | |
175 | // EFI Boot Service Drivers, and EFI Runtime Drivers.\r | |
176 | //\r | |
177 | if (ImageContext->IsTeImage == FALSE) {\r | |
178 | ImageContext->ImageType = PeHdr->OptionalHeader.Subsystem;\r | |
179 | } else {\r | |
180 | ImageContext->ImageType = (UINT16) (TeHdr->Subsystem);\r | |
181 | }\r | |
182 | \r | |
183 | \r | |
184 | return RETURN_SUCCESS;\r | |
185 | }\r | |
186 | \r | |
187 | /**\r | |
188 | Retrieves information on a PE/COFF image.\r | |
189 | \r | |
190 | @param This Calling context\r | |
191 | @param ImageContext The context of the image being loaded\r | |
192 | \r | |
193 | @retval RETURN_SUCCESS The information on the PE/COFF image was collected.\r | |
194 | @retval RETURN_INVALID_PARAMETER ImageContext is NULL.\r | |
195 | @retval RETURN_UNSUPPORTED The PE/COFF image is not supported.\r | |
196 | @retval Otherwise The error status from reading the PE/COFF image using the\r | |
197 | ImageContext->ImageRead() function\r | |
198 | \r | |
199 | **/\r | |
200 | RETURN_STATUS\r | |
201 | EFIAPI\r | |
202 | PeCoffLoaderGetImageInfo (\r | |
203 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r | |
204 | )\r | |
205 | {\r | |
206 | RETURN_STATUS Status;\r | |
207 | EFI_IMAGE_NT_HEADERS PeHdr;\r | |
208 | EFI_TE_IMAGE_HEADER TeHdr;\r | |
209 | EFI_IMAGE_DATA_DIRECTORY *DebugDirectoryEntry;\r | |
210 | UINTN Size;\r | |
211 | UINTN Index;\r | |
212 | UINTN DebugDirectoryEntryRva;\r | |
213 | UINTN DebugDirectoryEntryFileOffset;\r | |
214 | UINTN SectionHeaderOffset;\r | |
215 | EFI_IMAGE_SECTION_HEADER SectionHeader;\r | |
216 | EFI_IMAGE_DEBUG_DIRECTORY_ENTRY DebugEntry;\r | |
217 | \r | |
218 | if (NULL == ImageContext) {\r | |
219 | return RETURN_INVALID_PARAMETER;\r | |
220 | }\r | |
221 | //\r | |
222 | // Assume success\r | |
223 | //\r | |
224 | ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r | |
225 | \r | |
226 | Status = PeCoffLoaderGetPeHeader (ImageContext, &PeHdr, &TeHdr);\r | |
227 | if (RETURN_ERROR (Status)) {\r | |
228 | return Status;\r | |
229 | }\r | |
230 | //\r | |
231 | // Verify machine type\r | |
232 | //\r | |
233 | Status = PeCoffLoaderCheckImageType (ImageContext, &PeHdr, &TeHdr);\r | |
234 | if (RETURN_ERROR (Status)) {\r | |
235 | return Status;\r | |
236 | }\r | |
237 | //\r | |
238 | // Retrieve the base address of the image\r | |
239 | //\r | |
240 | if (!(ImageContext->IsTeImage)) {\r | |
241 | ImageContext->ImageAddress = PeHdr.OptionalHeader.ImageBase;\r | |
242 | } else {\r | |
243 | ImageContext->ImageAddress = (PHYSICAL_ADDRESS) (TeHdr.ImageBase);\r | |
244 | }\r | |
245 | //\r | |
246 | // Initialize the alternate destination address to 0 indicating that it\r | |
247 | // should not be used.\r | |
248 | //\r | |
249 | ImageContext->DestinationAddress = 0;\r | |
250 | \r | |
251 | //\r | |
252 | // Initialize the codeview pointer.\r | |
253 | //\r | |
254 | ImageContext->CodeView = NULL;\r | |
255 | ImageContext->PdbPointer = NULL;\r | |
256 | \r | |
257 | //\r | |
258 | // Three cases with regards to relocations:\r | |
259 | // - Image has base relocs, RELOCS_STRIPPED==0 => image is relocatable\r | |
260 | // - Image has no base relocs, RELOCS_STRIPPED==1 => Image is not relocatable\r | |
261 | // - Image has no base relocs, RELOCS_STRIPPED==0 => Image is relocatable but\r | |
262 | // has no base relocs to apply\r | |
263 | // Obviously having base relocations with RELOCS_STRIPPED==1 is invalid.\r | |
264 | //\r | |
265 | // Look at the file header to determine if relocations have been stripped, and\r | |
266 | // save this info in the image context for later use.\r | |
267 | //\r | |
268 | if ((!(ImageContext->IsTeImage)) && ((PeHdr.FileHeader.Characteristics & EFI_IMAGE_FILE_RELOCS_STRIPPED) != 0)) {\r | |
269 | ImageContext->RelocationsStripped = TRUE;\r | |
270 | } else {\r | |
271 | ImageContext->RelocationsStripped = FALSE;\r | |
272 | }\r | |
273 | \r | |
274 | if (!(ImageContext->IsTeImage)) {\r | |
275 | ImageContext->ImageSize = (UINT64) PeHdr.OptionalHeader.SizeOfImage;\r | |
276 | ImageContext->SectionAlignment = PeHdr.OptionalHeader.SectionAlignment;\r | |
277 | ImageContext->SizeOfHeaders = PeHdr.OptionalHeader.SizeOfHeaders;\r | |
278 | \r | |
279 | //\r | |
280 | // Modify ImageSize to contain .PDB file name if required and initialize\r | |
281 | // PdbRVA field...\r | |
282 | //\r | |
283 | if (PeHdr.OptionalHeader.NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {\r | |
284 | DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *) &(PeHdr.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r | |
285 | \r | |
286 | DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r | |
287 | \r | |
288 | //\r | |
289 | // Determine the file offset of the debug directory... This means we walk\r | |
290 | // the sections to find which section contains the RVA of the debug\r | |
291 | // directory\r | |
292 | //\r | |
293 | DebugDirectoryEntryFileOffset = 0;\r | |
294 | \r | |
295 | SectionHeaderOffset = (UINTN)(\r | |
296 | ImageContext->PeCoffHeaderOffset +\r | |
297 | sizeof (UINT32) + \r | |
298 | sizeof (EFI_IMAGE_FILE_HEADER) + \r | |
299 | PeHdr.FileHeader.SizeOfOptionalHeader\r | |
300 | );\r | |
301 | \r | |
302 | for (Index = 0; Index < PeHdr.FileHeader.NumberOfSections; Index++) {\r | |
303 | //\r | |
304 | // Read section header from file\r | |
305 | //\r | |
306 | Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
307 | Status = ImageContext->ImageRead (\r | |
308 | ImageContext->Handle,\r | |
309 | SectionHeaderOffset,\r | |
310 | &Size,\r | |
311 | &SectionHeader\r | |
312 | );\r | |
313 | if (RETURN_ERROR (Status)) {\r | |
314 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
315 | return Status;\r | |
316 | }\r | |
317 | \r | |
318 | if (DebugDirectoryEntryRva >= SectionHeader.VirtualAddress &&\r | |
319 | DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) {\r | |
320 | DebugDirectoryEntryFileOffset =\r | |
321 | DebugDirectoryEntryRva - SectionHeader.VirtualAddress + SectionHeader.PointerToRawData;\r | |
322 | break;\r | |
323 | }\r | |
324 | \r | |
325 | SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
326 | }\r | |
327 | \r | |
328 | if (DebugDirectoryEntryFileOffset != 0) {\r | |
329 | for (Index = 0; Index < DebugDirectoryEntry->Size; Index++) {\r | |
330 | //\r | |
331 | // Read next debug directory entry\r | |
332 | //\r | |
333 | Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r | |
334 | Status = ImageContext->ImageRead (\r | |
335 | ImageContext->Handle,\r | |
336 | DebugDirectoryEntryFileOffset,\r | |
337 | &Size,\r | |
338 | &DebugEntry\r | |
339 | );\r | |
340 | if (RETURN_ERROR (Status)) {\r | |
341 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
342 | return Status;\r | |
343 | }\r | |
344 | \r | |
345 | if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r | |
346 | ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index * sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY));\r | |
347 | if (DebugEntry.RVA == 0 && DebugEntry.FileOffset != 0) {\r | |
348 | ImageContext->ImageSize += DebugEntry.SizeOfData;\r | |
349 | }\r | |
350 | \r | |
351 | return RETURN_SUCCESS;\r | |
352 | }\r | |
353 | }\r | |
354 | }\r | |
355 | }\r | |
356 | } else {\r | |
357 | ImageContext->ImageSize = 0;\r | |
358 | ImageContext->SectionAlignment = 4096;\r | |
359 | ImageContext->SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN) TeHdr.BaseOfCode - (UINTN) TeHdr.StrippedSize;\r | |
360 | \r | |
361 | DebugDirectoryEntry = &TeHdr.DataDirectory[1];\r | |
362 | DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r | |
363 | SectionHeaderOffset = (UINTN) (sizeof (EFI_TE_IMAGE_HEADER));\r | |
364 | \r | |
365 | DebugDirectoryEntryFileOffset = 0;\r | |
366 | \r | |
367 | for (Index = 0; Index < TeHdr.NumberOfSections;) {\r | |
368 | //\r | |
369 | // Read section header from file\r | |
370 | //\r | |
371 | Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
372 | Status = ImageContext->ImageRead (\r | |
373 | ImageContext->Handle,\r | |
374 | SectionHeaderOffset,\r | |
375 | &Size,\r | |
376 | &SectionHeader\r | |
377 | );\r | |
378 | if (RETURN_ERROR (Status)) {\r | |
379 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
380 | return Status;\r | |
381 | }\r | |
382 | \r | |
383 | if (DebugDirectoryEntryRva >= SectionHeader.VirtualAddress &&\r | |
384 | DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) {\r | |
385 | DebugDirectoryEntryFileOffset = DebugDirectoryEntryRva -\r | |
386 | SectionHeader.VirtualAddress +\r | |
387 | SectionHeader.PointerToRawData +\r | |
388 | sizeof (EFI_TE_IMAGE_HEADER) -\r | |
389 | TeHdr.StrippedSize;\r | |
390 | \r | |
391 | //\r | |
392 | // File offset of the debug directory was found, if this is not the last\r | |
393 | // section, then skip to the last section for calculating the image size.\r | |
394 | //\r | |
395 | if (Index < (UINTN) TeHdr.NumberOfSections - 1) {\r | |
396 | SectionHeaderOffset += (TeHdr.NumberOfSections - 1 - Index) * sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
397 | Index = TeHdr.NumberOfSections - 1;\r | |
398 | continue;\r | |
399 | }\r | |
400 | }\r | |
401 | \r | |
402 | //\r | |
403 | // In Te image header there is not a field to describe the ImageSize.\r | |
404 | // Actually, the ImageSize equals the RVA plus the VirtualSize of \r | |
405 | // the last section mapped into memory (Must be rounded up to \r | |
406 | // a mulitple of Section Alignment). Per the PE/COFF specification, the\r | |
407 | // section headers in the Section Table must appear in order of the RVA\r | |
408 | // values for the corresponding sections. So the ImageSize can be determined\r | |
409 | // by the RVA and the VirtualSize of the last section header in the\r | |
410 | // Section Table.\r | |
411 | //\r | |
412 | if ((++Index) == (UINTN) TeHdr.NumberOfSections) {\r | |
413 | ImageContext->ImageSize = (SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize +\r | |
414 | ImageContext->SectionAlignment - 1) & ~(ImageContext->SectionAlignment - 1);\r | |
415 | }\r | |
416 | \r | |
417 | SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
418 | }\r | |
419 | \r | |
420 | if (DebugDirectoryEntryFileOffset != 0) {\r | |
421 | for (Index = 0; Index < DebugDirectoryEntry->Size; Index++) {\r | |
422 | //\r | |
423 | // Read next debug directory entry\r | |
424 | //\r | |
425 | Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r | |
426 | Status = ImageContext->ImageRead (\r | |
427 | ImageContext->Handle,\r | |
428 | DebugDirectoryEntryFileOffset,\r | |
429 | &Size,\r | |
430 | &DebugEntry\r | |
431 | );\r | |
432 | if (RETURN_ERROR (Status)) {\r | |
433 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
434 | return Status;\r | |
435 | }\r | |
436 | \r | |
437 | if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r | |
438 | ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index * sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY));\r | |
439 | return RETURN_SUCCESS;\r | |
440 | }\r | |
441 | }\r | |
442 | }\r | |
443 | }\r | |
444 | \r | |
445 | return RETURN_SUCCESS;\r | |
446 | }\r | |
447 | \r | |
448 | /**\r | |
449 | Converts an image address to the loaded address.\r | |
450 | \r | |
451 | @param ImageContext The context of the image being loaded.\r | |
452 | \r | |
453 | @param Address The address to be converted to the loaded address.\r | |
454 | \r | |
455 | @return NULL if the address can not be converted, otherwise, the converted address\r | |
456 | \r | |
457 | **/\r | |
458 | STATIC\r | |
459 | VOID *\r | |
460 | PeCoffLoaderImageAddress (\r | |
461 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
462 | IN UINTN Address\r | |
463 | )\r | |
464 | {\r | |
465 | if (Address >= ImageContext->ImageSize) {\r | |
466 | ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r | |
467 | return NULL;\r | |
468 | }\r | |
469 | \r | |
470 | return (CHAR8 *) ((UINTN) ImageContext->ImageAddress + Address);\r | |
471 | }\r | |
472 | \r | |
473 | /**\r | |
474 | Relocates a PE/COFF image in memory.\r | |
475 | \r | |
476 | @param This Calling context.\r | |
477 | \r | |
478 | @param ImageContext Contains information on the loaded image to relocate.\r | |
479 | \r | |
480 | @retval RETURN_SUCCESS if the PE/COFF image was relocated.\r | |
481 | @retval RETURN_LOAD_ERROR if the image is not a valid PE/COFF image.\r | |
482 | @retval RETURN_UNSUPPORTED not support.\r | |
483 | \r | |
484 | **/\r | |
485 | RETURN_STATUS\r | |
486 | EFIAPI\r | |
487 | PeCoffLoaderRelocateImage (\r | |
488 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r | |
489 | )\r | |
490 | {\r | |
491 | RETURN_STATUS Status;\r | |
492 | EFI_IMAGE_NT_HEADERS *PeHdr;\r | |
493 | EFI_TE_IMAGE_HEADER *TeHdr;\r | |
494 | EFI_IMAGE_DATA_DIRECTORY *RelocDir;\r | |
495 | UINT64 Adjust;\r | |
496 | EFI_IMAGE_BASE_RELOCATION *RelocBase;\r | |
497 | EFI_IMAGE_BASE_RELOCATION *RelocBaseEnd;\r | |
498 | UINT16 *Reloc;\r | |
499 | UINT16 *RelocEnd;\r | |
500 | CHAR8 *Fixup;\r | |
501 | CHAR8 *FixupBase;\r | |
502 | UINT16 *F16;\r | |
503 | UINT32 *F32;\r | |
504 | CHAR8 *FixupData;\r | |
505 | PHYSICAL_ADDRESS BaseAddress;\r | |
506 | \r | |
507 | PeHdr = NULL;\r | |
508 | TeHdr = NULL;\r | |
509 | //\r | |
510 | // Assume success\r | |
511 | //\r | |
512 | ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r | |
513 | \r | |
514 | //\r | |
515 | // If there are no relocation entries, then we are done\r | |
516 | //\r | |
517 | if (ImageContext->RelocationsStripped) {\r | |
518 | return RETURN_SUCCESS;\r | |
519 | }\r | |
520 | \r | |
521 | //\r | |
522 | // If the destination address is not 0, use that rather than the\r | |
523 | // image address as the relocation target.\r | |
524 | //\r | |
525 | if (ImageContext->DestinationAddress) {\r | |
526 | BaseAddress = ImageContext->DestinationAddress;\r | |
527 | } else {\r | |
528 | BaseAddress = ImageContext->ImageAddress;\r | |
529 | }\r | |
530 | \r | |
531 | if (!(ImageContext->IsTeImage)) {\r | |
532 | PeHdr = (EFI_IMAGE_NT_HEADERS *)((UINTN)ImageContext->ImageAddress + \r | |
533 | ImageContext->PeCoffHeaderOffset);\r | |
534 | Adjust = (UINT64) BaseAddress - PeHdr->OptionalHeader.ImageBase;\r | |
535 | PeHdr->OptionalHeader.ImageBase = (UINTN)BaseAddress;\r | |
536 | \r | |
537 | //\r | |
538 | // Find the relocation block\r | |
539 | //\r | |
540 | // Per the PE/COFF spec, you can't assume that a given data directory\r | |
541 | // is present in the image. You have to check the NumberOfRvaAndSizes in\r | |
542 | // the optional header to verify a desired directory entry is there.\r | |
543 | //\r | |
544 | if (PeHdr->OptionalHeader.NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r | |
545 | RelocDir = &PeHdr->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r | |
546 | RelocBase = PeCoffLoaderImageAddress (ImageContext, RelocDir->VirtualAddress);\r | |
547 | RelocBaseEnd = PeCoffLoaderImageAddress (\r | |
548 | ImageContext,\r | |
549 | RelocDir->VirtualAddress + RelocDir->Size - 1\r | |
550 | );\r | |
551 | } else {\r | |
552 | //\r | |
553 | // Set base and end to bypass processing below.\r | |
554 | //\r | |
555 | RelocBase = RelocBaseEnd = 0;\r | |
556 | }\r | |
557 | } else {\r | |
558 | TeHdr = (EFI_TE_IMAGE_HEADER *) (UINTN) (ImageContext->ImageAddress);\r | |
559 | Adjust = (UINT64) (BaseAddress - TeHdr->ImageBase);\r | |
560 | TeHdr->ImageBase = (UINT64) (BaseAddress);\r | |
561 | \r | |
562 | //\r | |
563 | // Find the relocation block\r | |
564 | //\r | |
565 | RelocDir = &TeHdr->DataDirectory[0];\r | |
566 | RelocBase = (EFI_IMAGE_BASE_RELOCATION *)(UINTN)(\r | |
567 | ImageContext->ImageAddress + \r | |
568 | RelocDir->VirtualAddress +\r | |
569 | sizeof(EFI_TE_IMAGE_HEADER) - \r | |
570 | TeHdr->StrippedSize\r | |
571 | );\r | |
572 | RelocBaseEnd = (EFI_IMAGE_BASE_RELOCATION *) ((UINTN) RelocBase + (UINTN) RelocDir->Size - 1);\r | |
573 | }\r | |
574 | \r | |
575 | //\r | |
576 | // Run the relocation information and apply the fixups\r | |
577 | //\r | |
578 | FixupData = ImageContext->FixupData;\r | |
579 | while (RelocBase < RelocBaseEnd) {\r | |
580 | \r | |
581 | Reloc = (UINT16 *) ((CHAR8 *) RelocBase + sizeof (EFI_IMAGE_BASE_RELOCATION));\r | |
582 | RelocEnd = (UINT16 *) ((CHAR8 *) RelocBase + RelocBase->SizeOfBlock);\r | |
583 | if (!(ImageContext->IsTeImage)) {\r | |
584 | FixupBase = PeCoffLoaderImageAddress (ImageContext, RelocBase->VirtualAddress);\r | |
585 | } else {\r | |
586 | FixupBase = (CHAR8 *)(UINTN)(ImageContext->ImageAddress +\r | |
587 | RelocBase->VirtualAddress +\r | |
588 | sizeof(EFI_TE_IMAGE_HEADER) - \r | |
589 | TeHdr->StrippedSize\r | |
590 | );\r | |
591 | }\r | |
592 | \r | |
593 | if ((CHAR8 *) RelocEnd < (CHAR8 *) ((UINTN) ImageContext->ImageAddress) ||\r | |
594 | (CHAR8 *) RelocEnd > (CHAR8 *)((UINTN)ImageContext->ImageAddress + \r | |
595 | (UINTN)ImageContext->ImageSize)) {\r | |
596 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r | |
597 | return RETURN_LOAD_ERROR;\r | |
598 | }\r | |
599 | \r | |
600 | //\r | |
601 | // Run this relocation record\r | |
602 | //\r | |
603 | while (Reloc < RelocEnd) {\r | |
604 | \r | |
605 | Fixup = FixupBase + (*Reloc & 0xFFF);\r | |
606 | switch ((*Reloc) >> 12) {\r | |
607 | case EFI_IMAGE_REL_BASED_ABSOLUTE:\r | |
608 | break;\r | |
609 | \r | |
610 | case EFI_IMAGE_REL_BASED_HIGH:\r | |
611 | F16 = (UINT16 *) Fixup;\r | |
612 | *F16 = (UINT16) ((*F16 << 16) + (UINT16) Adjust);\r | |
613 | if (FixupData != NULL) {\r | |
614 | *(UINT16 *) FixupData = *F16;\r | |
615 | FixupData = FixupData + sizeof (UINT16);\r | |
616 | }\r | |
617 | break;\r | |
618 | \r | |
619 | case EFI_IMAGE_REL_BASED_LOW:\r | |
620 | F16 = (UINT16 *) Fixup;\r | |
621 | *F16 = (UINT16) (*F16 + (UINT16) Adjust);\r | |
622 | if (FixupData != NULL) {\r | |
623 | *(UINT16 *) FixupData = *F16;\r | |
624 | FixupData = FixupData + sizeof (UINT16);\r | |
625 | }\r | |
626 | break;\r | |
627 | \r | |
628 | case EFI_IMAGE_REL_BASED_HIGHLOW:\r | |
629 | F32 = (UINT32 *) Fixup;\r | |
630 | *F32 = *F32 + (UINT32) Adjust;\r | |
631 | if (FixupData != NULL) {\r | |
632 | FixupData = ALIGN_POINTER (FixupData, sizeof (UINT32));\r | |
633 | *(UINT32 *) FixupData = *F32;\r | |
634 | FixupData = FixupData + sizeof (UINT32);\r | |
635 | }\r | |
636 | break;\r | |
637 | \r | |
638 | case EFI_IMAGE_REL_BASED_HIGHADJ:\r | |
639 | //\r | |
640 | // Return the same EFI_UNSUPPORTED return code as\r | |
641 | // PeCoffLoaderRelocateImageEx() returns if it does not recognize\r | |
642 | // the relocation type.\r | |
643 | //\r | |
644 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r | |
645 | return RETURN_UNSUPPORTED;\r | |
646 | \r | |
647 | default:\r | |
648 | Status = PeCoffLoaderRelocateImageEx (Reloc, Fixup, &FixupData, Adjust);\r | |
649 | if (RETURN_ERROR (Status)) {\r | |
650 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r | |
651 | return Status;\r | |
652 | }\r | |
653 | }\r | |
654 | \r | |
655 | //\r | |
656 | // Next relocation record\r | |
657 | //\r | |
658 | Reloc += 1;\r | |
659 | }\r | |
660 | \r | |
661 | //\r | |
662 | // Next reloc block\r | |
663 | //\r | |
664 | RelocBase = (EFI_IMAGE_BASE_RELOCATION *) RelocEnd;\r | |
665 | }\r | |
666 | \r | |
667 | return RETURN_SUCCESS;\r | |
668 | }\r | |
669 | \r | |
670 | /**\r | |
671 | Loads a PE/COFF image into memory.\r | |
672 | \r | |
673 | @param This Calling context.\r | |
674 | \r | |
675 | @param ImageContext Contains information on image to load into memory.\r | |
676 | \r | |
677 | @retval RETURN_SUCCESS if the PE/COFF image was loaded.\r | |
678 | @retval RETURN_BUFFER_TOO_SMALL if the caller did not provide a large enough buffer.\r | |
679 | @retval RETURN_LOAD_ERROR if the image is a runtime driver with no relocations.\r | |
680 | @retval RETURN_INVALID_PARAMETER if the image address is invalid.\r | |
681 | \r | |
682 | **/\r | |
683 | RETURN_STATUS\r | |
684 | EFIAPI\r | |
685 | PeCoffLoaderLoadImage (\r | |
686 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r | |
687 | )\r | |
688 | {\r | |
689 | RETURN_STATUS Status;\r | |
690 | EFI_IMAGE_NT_HEADERS *PeHdr;\r | |
691 | EFI_TE_IMAGE_HEADER *TeHdr;\r | |
692 | PE_COFF_LOADER_IMAGE_CONTEXT CheckContext;\r | |
693 | EFI_IMAGE_SECTION_HEADER *FirstSection;\r | |
694 | EFI_IMAGE_SECTION_HEADER *Section;\r | |
695 | UINTN NumberOfSections;\r | |
696 | UINTN Index;\r | |
697 | CHAR8 *Base;\r | |
698 | CHAR8 *End;\r | |
699 | CHAR8 *MaxEnd;\r | |
700 | EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;\r | |
701 | EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;\r | |
702 | UINTN Size;\r | |
703 | UINT32 TempDebugEntryRva;\r | |
704 | \r | |
705 | PeHdr = NULL;\r | |
706 | TeHdr = NULL;\r | |
707 | //\r | |
708 | // Assume success\r | |
709 | //\r | |
710 | ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r | |
711 | \r | |
712 | //\r | |
713 | // Copy the provided context info into our local version, get what we\r | |
714 | // can from the original image, and then use that to make sure everything\r | |
715 | // is legit.\r | |
716 | //\r | |
717 | CopyMem (&CheckContext, ImageContext, sizeof (PE_COFF_LOADER_IMAGE_CONTEXT));\r | |
718 | \r | |
719 | Status = PeCoffLoaderGetImageInfo (&CheckContext);\r | |
720 | if (RETURN_ERROR (Status)) {\r | |
721 | return Status;\r | |
722 | }\r | |
723 | \r | |
724 | //\r | |
725 | // Make sure there is enough allocated space for the image being loaded\r | |
726 | //\r | |
727 | if (ImageContext->ImageSize < CheckContext.ImageSize) {\r | |
728 | ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_SIZE;\r | |
729 | return RETURN_BUFFER_TOO_SMALL;\r | |
730 | }\r | |
731 | \r | |
732 | //\r | |
733 | // If there's no relocations, then make sure it's not a runtime driver,\r | |
734 | // and that it's being loaded at the linked address.\r | |
735 | //\r | |
736 | if (CheckContext.RelocationsStripped) {\r | |
737 | //\r | |
738 | // If the image does not contain relocations and it is a runtime driver\r | |
739 | // then return an error.\r | |
740 | //\r | |
741 | if (CheckContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) {\r | |
742 | ImageContext->ImageError = IMAGE_ERROR_INVALID_SUBSYSTEM;\r | |
743 | return RETURN_LOAD_ERROR;\r | |
744 | }\r | |
745 | //\r | |
746 | // If the image does not contain relocations, and the requested load address\r | |
747 | // is not the linked address, then return an error.\r | |
748 | //\r | |
749 | if (CheckContext.ImageAddress != ImageContext->ImageAddress) {\r | |
750 | ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r | |
751 | return RETURN_INVALID_PARAMETER;\r | |
752 | }\r | |
753 | }\r | |
754 | //\r | |
755 | // Make sure the allocated space has the proper section alignment\r | |
756 | //\r | |
757 | if (!(ImageContext->IsTeImage)) {\r | |
758 | if ((ImageContext->ImageAddress & (CheckContext.SectionAlignment - 1)) != 0) {\r | |
759 | ImageContext->ImageError = IMAGE_ERROR_INVALID_SECTION_ALIGNMENT;\r | |
760 | return RETURN_INVALID_PARAMETER;\r | |
761 | }\r | |
762 | }\r | |
763 | //\r | |
764 | // Read the entire PE/COFF or TE header into memory\r | |
765 | //\r | |
766 | if (!(ImageContext->IsTeImage)) {\r | |
767 | Status = ImageContext->ImageRead (\r | |
768 | ImageContext->Handle,\r | |
769 | 0,\r | |
770 | &ImageContext->SizeOfHeaders,\r | |
771 | (VOID *) (UINTN) ImageContext->ImageAddress\r | |
772 | );\r | |
773 | \r | |
774 | PeHdr = (EFI_IMAGE_NT_HEADERS *)\r | |
775 | ((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);\r | |
776 | \r | |
777 | FirstSection = (EFI_IMAGE_SECTION_HEADER *) (\r | |
778 | (UINTN)ImageContext->ImageAddress +\r | |
779 | ImageContext->PeCoffHeaderOffset +\r | |
780 | sizeof(UINT32) + \r | |
781 | sizeof(EFI_IMAGE_FILE_HEADER) + \r | |
782 | PeHdr->FileHeader.SizeOfOptionalHeader\r | |
783 | );\r | |
784 | NumberOfSections = (UINTN) (PeHdr->FileHeader.NumberOfSections);\r | |
785 | } else {\r | |
786 | Status = ImageContext->ImageRead (\r | |
787 | ImageContext->Handle,\r | |
788 | 0,\r | |
789 | &ImageContext->SizeOfHeaders,\r | |
790 | (void *) (UINTN) ImageContext->ImageAddress\r | |
791 | );\r | |
792 | \r | |
793 | TeHdr = (EFI_TE_IMAGE_HEADER *) (UINTN) (ImageContext->ImageAddress);\r | |
794 | \r | |
795 | FirstSection = (EFI_IMAGE_SECTION_HEADER *) (\r | |
796 | (UINTN)ImageContext->ImageAddress +\r | |
797 | sizeof(EFI_TE_IMAGE_HEADER)\r | |
798 | );\r | |
799 | NumberOfSections = (UINTN) (TeHdr->NumberOfSections);\r | |
800 | \r | |
801 | }\r | |
802 | \r | |
803 | if (RETURN_ERROR (Status)) {\r | |
804 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
805 | return RETURN_LOAD_ERROR;\r | |
806 | }\r | |
807 | \r | |
808 | //\r | |
809 | // Load each section of the image\r | |
810 | //\r | |
811 | Section = FirstSection;\r | |
812 | for (Index = 0, MaxEnd = NULL; Index < NumberOfSections; Index++) {\r | |
813 | \r | |
814 | //\r | |
815 | // Compute sections address\r | |
816 | //\r | |
817 | Base = PeCoffLoaderImageAddress (ImageContext, Section->VirtualAddress);\r | |
818 | End = PeCoffLoaderImageAddress (\r | |
819 | ImageContext,\r | |
820 | Section->VirtualAddress + Section->Misc.VirtualSize - 1\r | |
821 | );\r | |
822 | if (ImageContext->IsTeImage) {\r | |
823 | Base = (CHAR8 *) ((UINTN) Base + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize);\r | |
824 | End = (CHAR8 *) ((UINTN) End + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize);\r | |
825 | }\r | |
826 | \r | |
827 | if (End > MaxEnd) {\r | |
828 | MaxEnd = End;\r | |
829 | }\r | |
830 | //\r | |
831 | // If the base start or end address resolved to 0, then fail.\r | |
832 | //\r | |
833 | if ((Base == NULL) || (End == NULL)) {\r | |
834 | ImageContext->ImageError = IMAGE_ERROR_SECTION_NOT_LOADED;\r | |
835 | return RETURN_LOAD_ERROR;\r | |
836 | }\r | |
837 | \r | |
838 | //\r | |
839 | // Read the section\r | |
840 | //\r | |
841 | Size = (UINTN) Section->Misc.VirtualSize;\r | |
842 | if ((Size == 0) || (Size > Section->SizeOfRawData)) {\r | |
843 | Size = (UINTN) Section->SizeOfRawData;\r | |
844 | }\r | |
845 | \r | |
846 | if (Section->SizeOfRawData) {\r | |
847 | if (!(ImageContext->IsTeImage)) {\r | |
848 | Status = ImageContext->ImageRead (\r | |
849 | ImageContext->Handle,\r | |
850 | Section->PointerToRawData,\r | |
851 | &Size,\r | |
852 | Base\r | |
853 | );\r | |
854 | } else {\r | |
855 | Status = ImageContext->ImageRead (\r | |
856 | ImageContext->Handle,\r | |
857 | Section->PointerToRawData + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize,\r | |
858 | &Size,\r | |
859 | Base\r | |
860 | );\r | |
861 | }\r | |
862 | \r | |
863 | if (RETURN_ERROR (Status)) {\r | |
864 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
865 | return Status;\r | |
866 | }\r | |
867 | }\r | |
868 | \r | |
869 | //\r | |
870 | // If raw size is less then virt size, zero fill the remaining\r | |
871 | //\r | |
872 | \r | |
873 | if (Size < Section->Misc.VirtualSize) {\r | |
874 | ZeroMem (Base + Size, Section->Misc.VirtualSize - Size);\r | |
875 | }\r | |
876 | \r | |
877 | //\r | |
878 | // Next Section\r | |
879 | //\r | |
880 | Section += 1;\r | |
881 | }\r | |
882 | \r | |
883 | //\r | |
884 | // Get image's entry point\r | |
885 | //\r | |
886 | if (!(ImageContext->IsTeImage)) {\r | |
887 | ImageContext->EntryPoint = (PHYSICAL_ADDRESS) (UINTN) PeCoffLoaderImageAddress (\r | |
888 | ImageContext,\r | |
889 | PeHdr->OptionalHeader.AddressOfEntryPoint\r | |
890 | );\r | |
891 | } else {\r | |
892 | ImageContext->EntryPoint = (PHYSICAL_ADDRESS) (\r | |
893 | (UINTN)ImageContext->ImageAddress +\r | |
894 | (UINTN)TeHdr->AddressOfEntryPoint +\r | |
895 | (UINTN)sizeof(EFI_TE_IMAGE_HEADER) -\r | |
896 | (UINTN) TeHdr->StrippedSize\r | |
897 | );\r | |
898 | }\r | |
899 | \r | |
900 | //\r | |
901 | // Determine the size of the fixup data\r | |
902 | //\r | |
903 | // Per the PE/COFF spec, you can't assume that a given data directory\r | |
904 | // is present in the image. You have to check the NumberOfRvaAndSizes in\r | |
905 | // the optional header to verify a desired directory entry is there.\r | |
906 | //\r | |
907 | if (!(ImageContext->IsTeImage)) {\r | |
908 | if (PeHdr->OptionalHeader.NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r | |
909 | DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)\r | |
910 | &PeHdr->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r | |
911 | ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);\r | |
912 | } else {\r | |
913 | ImageContext->FixupDataSize = 0;\r | |
914 | }\r | |
915 | } else {\r | |
916 | DirectoryEntry = &TeHdr->DataDirectory[0];\r | |
917 | ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);\r | |
918 | }\r | |
919 | //\r | |
920 | // Consumer must allocate a buffer for the relocation fixup log.\r | |
921 | // Only used for runtime drivers.\r | |
922 | //\r | |
923 | ImageContext->FixupData = NULL;\r | |
924 | \r | |
925 | //\r | |
926 | // Load the Codeview info if present\r | |
927 | //\r | |
928 | if (ImageContext->DebugDirectoryEntryRva != 0) {\r | |
929 | if (!(ImageContext->IsTeImage)) {\r | |
930 | DebugEntry = PeCoffLoaderImageAddress (\r | |
931 | ImageContext,\r | |
932 | ImageContext->DebugDirectoryEntryRva\r | |
933 | );\r | |
934 | } else {\r | |
935 | DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)(UINTN)(\r | |
936 | ImageContext->ImageAddress +\r | |
937 | ImageContext->DebugDirectoryEntryRva +\r | |
938 | sizeof(EFI_TE_IMAGE_HEADER) -\r | |
939 | TeHdr->StrippedSize\r | |
940 | );\r | |
941 | }\r | |
942 | \r | |
943 | if (DebugEntry != NULL) {\r | |
944 | TempDebugEntryRva = DebugEntry->RVA;\r | |
945 | if (DebugEntry->RVA == 0 && DebugEntry->FileOffset != 0) {\r | |
946 | Section--;\r | |
947 | if ((UINTN) Section->SizeOfRawData < Section->Misc.VirtualSize) {\r | |
948 | TempDebugEntryRva = Section->VirtualAddress + Section->Misc.VirtualSize;\r | |
949 | } else {\r | |
950 | TempDebugEntryRva = Section->VirtualAddress + Section->SizeOfRawData;\r | |
951 | }\r | |
952 | }\r | |
953 | \r | |
954 | if (TempDebugEntryRva != 0) {\r | |
955 | if (!(ImageContext->IsTeImage)) {\r | |
956 | ImageContext->CodeView = PeCoffLoaderImageAddress (ImageContext, TempDebugEntryRva);\r | |
957 | } else {\r | |
958 | ImageContext->CodeView = (VOID *)(\r | |
959 | (UINTN)ImageContext->ImageAddress +\r | |
960 | (UINTN)TempDebugEntryRva +\r | |
961 | (UINTN)sizeof(EFI_TE_IMAGE_HEADER) -\r | |
962 | (UINTN) TeHdr->StrippedSize\r | |
963 | );\r | |
964 | }\r | |
965 | \r | |
966 | if (ImageContext->CodeView == NULL) {\r | |
967 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
968 | return RETURN_LOAD_ERROR;\r | |
969 | }\r | |
970 | \r | |
971 | if (DebugEntry->RVA == 0) {\r | |
972 | Size = DebugEntry->SizeOfData;\r | |
973 | if (!(ImageContext->IsTeImage)) {\r | |
974 | Status = ImageContext->ImageRead (\r | |
975 | ImageContext->Handle,\r | |
976 | DebugEntry->FileOffset,\r | |
977 | &Size,\r | |
978 | ImageContext->CodeView\r | |
979 | );\r | |
980 | } else {\r | |
981 | Status = ImageContext->ImageRead (\r | |
982 | ImageContext->Handle,\r | |
983 | DebugEntry->FileOffset + sizeof (EFI_TE_IMAGE_HEADER) - TeHdr->StrippedSize,\r | |
984 | &Size,\r | |
985 | ImageContext->CodeView\r | |
986 | );\r | |
987 | //\r | |
988 | // Should we apply fix up to this field according to the size difference between PE and TE?\r | |
989 | // Because now we maintain TE header fields unfixed, this field will also remain as they are\r | |
990 | // in original PE image.\r | |
991 | //\r | |
992 | }\r | |
993 | \r | |
994 | if (RETURN_ERROR (Status)) {\r | |
995 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
996 | return RETURN_LOAD_ERROR;\r | |
997 | }\r | |
998 | \r | |
999 | DebugEntry->RVA = TempDebugEntryRva;\r | |
1000 | }\r | |
1001 | \r | |
1002 | switch (*(UINT32 *) ImageContext->CodeView) {\r | |
1003 | case CODEVIEW_SIGNATURE_NB10:\r | |
1004 | ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY);\r | |
1005 | break;\r | |
1006 | \r | |
1007 | case CODEVIEW_SIGNATURE_RSDS:\r | |
1008 | ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY);\r | |
1009 | break;\r | |
1010 | \r | |
1011 | default:\r | |
1012 | break;\r | |
1013 | }\r | |
1014 | }\r | |
1015 | }\r | |
1016 | }\r | |
1017 | \r | |
1018 | return Status;\r | |
1019 | }\r |