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30fdf114 LG |
1 | /** @file\r |
2 | \r | |
3 | Functions to get info and load PE/COFF image.\r | |
4 | \r | |
f7496d71 | 5 | Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r |
4afd3d04 | 6 | Portions Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>\r |
2e351cbe | 7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
30fdf114 LG |
8 | \r |
9 | **/\r | |
10 | \r | |
11 | #include <Common/UefiBaseTypes.h>\r | |
12 | #include <CommonLib.h>\r | |
13 | #include <IndustryStandard/PeImage.h>\r | |
14 | #include "PeCoffLib.h"\r | |
15 | \r | |
16 | typedef union {\r | |
f7496d71 | 17 | VOID *Header;\r |
30fdf114 LG |
18 | EFI_IMAGE_OPTIONAL_HEADER32 *Optional32;\r |
19 | EFI_IMAGE_OPTIONAL_HEADER64 *Optional64;\r | |
20 | } EFI_IMAGE_OPTIONAL_HEADER_POINTER;\r | |
21 | \r | |
22 | STATIC\r | |
23 | RETURN_STATUS\r | |
24 | PeCoffLoaderGetPeHeader (\r | |
25 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
26 | OUT EFI_IMAGE_OPTIONAL_HEADER_UNION **PeHdr,\r | |
27 | OUT EFI_TE_IMAGE_HEADER **TeHdr\r | |
28 | );\r | |
29 | \r | |
30 | STATIC\r | |
31 | RETURN_STATUS\r | |
32 | PeCoffLoaderCheckImageType (\r | |
33 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
34 | IN EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHdr,\r | |
35 | IN EFI_TE_IMAGE_HEADER *TeHdr\r | |
36 | );\r | |
37 | \r | |
38 | STATIC\r | |
39 | VOID *\r | |
40 | PeCoffLoaderImageAddress (\r | |
41 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
42 | IN UINTN Address\r | |
43 | );\r | |
44 | \r | |
45 | RETURN_STATUS\r | |
46 | PeCoffLoaderRelocateIa32Image (\r | |
47 | IN UINT16 *Reloc,\r | |
48 | IN OUT CHAR8 *Fixup,\r | |
49 | IN OUT CHAR8 **FixupData,\r | |
50 | IN UINT64 Adjust\r | |
51 | );\r | |
52 | \r | |
30fdf114 | 53 | \r |
40d841f6 LG |
54 | RETURN_STATUS\r |
55 | PeCoffLoaderRelocateArmImage (\r | |
56 | IN UINT16 **Reloc,\r | |
57 | IN OUT CHAR8 *Fixup,\r | |
58 | IN OUT CHAR8 **FixupData,\r | |
59 | IN UINT64 Adjust\r | |
60 | );\r | |
61 | \r | |
30fdf114 LG |
62 | STATIC\r |
63 | RETURN_STATUS\r | |
64 | PeCoffLoaderGetPeHeader (\r | |
65 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
66 | OUT EFI_IMAGE_OPTIONAL_HEADER_UNION **PeHdr,\r | |
67 | OUT EFI_TE_IMAGE_HEADER **TeHdr\r | |
68 | )\r | |
69 | /*++\r | |
70 | \r | |
71 | Routine Description:\r | |
72 | \r | |
73 | Retrieves the PE or TE Header from a PE/COFF or TE image\r | |
74 | \r | |
75 | Arguments:\r | |
76 | \r | |
77 | ImageContext - The context of the image being loaded\r | |
78 | \r | |
79 | PeHdr - The buffer in which to return the PE header\r | |
f7496d71 | 80 | \r |
30fdf114 LG |
81 | TeHdr - The buffer in which to return the TE header\r |
82 | \r | |
83 | Returns:\r | |
84 | \r | |
f7496d71 | 85 | RETURN_SUCCESS if the PE or TE Header is read,\r |
30fdf114 LG |
86 | Otherwise, the error status from reading the PE/COFF or TE image using the ImageRead function.\r |
87 | \r | |
88 | --*/\r | |
89 | {\r | |
90 | RETURN_STATUS Status;\r | |
91 | EFI_IMAGE_DOS_HEADER DosHdr;\r | |
92 | UINTN Size;\r | |
93 | \r | |
94 | ImageContext->IsTeImage = FALSE;\r | |
95 | //\r | |
96 | // Read the DOS image headers\r | |
97 | //\r | |
98 | Size = sizeof (EFI_IMAGE_DOS_HEADER);\r | |
99 | Status = ImageContext->ImageRead (\r | |
100 | ImageContext->Handle,\r | |
101 | 0,\r | |
102 | &Size,\r | |
103 | &DosHdr\r | |
104 | );\r | |
105 | if (RETURN_ERROR (Status)) {\r | |
106 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
107 | return Status;\r | |
108 | }\r | |
109 | \r | |
110 | ImageContext->PeCoffHeaderOffset = 0;\r | |
111 | if (DosHdr.e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r | |
112 | //\r | |
113 | // DOS image header is present, so read the PE header after the DOS image header\r | |
114 | //\r | |
115 | ImageContext->PeCoffHeaderOffset = DosHdr.e_lfanew;\r | |
116 | }\r | |
117 | //\r | |
118 | // Get the PE/COFF Header pointer\r | |
119 | //\r | |
120 | *PeHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *) ((UINTN)ImageContext->Handle + ImageContext->PeCoffHeaderOffset);\r | |
121 | if ((*PeHdr)->Pe32.Signature != EFI_IMAGE_NT_SIGNATURE) {\r | |
122 | //\r | |
123 | // Check the PE/COFF Header Signature. If not, then try to get a TE header\r | |
124 | //\r | |
f7496d71 | 125 | *TeHdr = (EFI_TE_IMAGE_HEADER *)*PeHdr;\r |
30fdf114 LG |
126 | if ((*TeHdr)->Signature != EFI_TE_IMAGE_HEADER_SIGNATURE) {\r |
127 | return RETURN_UNSUPPORTED;\r | |
128 | }\r | |
129 | ImageContext->IsTeImage = TRUE;\r | |
130 | }\r | |
131 | \r | |
132 | return RETURN_SUCCESS;\r | |
133 | }\r | |
134 | \r | |
135 | STATIC\r | |
136 | RETURN_STATUS\r | |
137 | PeCoffLoaderCheckImageType (\r | |
138 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
139 | IN EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHdr,\r | |
140 | IN EFI_TE_IMAGE_HEADER *TeHdr\r | |
141 | )\r | |
142 | /*++\r | |
143 | \r | |
144 | Routine Description:\r | |
145 | \r | |
146 | Checks the PE or TE header of a PE/COFF or TE image to determine if it supported\r | |
147 | \r | |
148 | Arguments:\r | |
149 | \r | |
150 | ImageContext - The context of the image being loaded\r | |
151 | \r | |
152 | PeHdr - The buffer in which to return the PE header\r | |
f7496d71 | 153 | \r |
30fdf114 LG |
154 | TeHdr - The buffer in which to return the TE header\r |
155 | \r | |
156 | Returns:\r | |
157 | \r | |
158 | RETURN_SUCCESS if the PE/COFF or TE image is supported\r | |
159 | RETURN_UNSUPPORTED of the PE/COFF or TE image is not supported.\r | |
160 | \r | |
161 | --*/\r | |
162 | {\r | |
163 | //\r | |
f7496d71 | 164 | // See if the machine type is supported.\r |
30fdf114 LG |
165 | // We support a native machine type (IA-32/Itanium-based)\r |
166 | //\r | |
167 | if (ImageContext->IsTeImage == FALSE) {\r | |
168 | ImageContext->Machine = PeHdr->Pe32.FileHeader.Machine;\r | |
169 | } else {\r | |
170 | ImageContext->Machine = TeHdr->Machine;\r | |
171 | }\r | |
f7496d71 | 172 | \r |
30fdf114 | 173 | if (ImageContext->Machine != EFI_IMAGE_MACHINE_IA32 && \\r |
30fdf114 LG |
174 | ImageContext->Machine != EFI_IMAGE_MACHINE_X64 && \\r |
175 | ImageContext->Machine != EFI_IMAGE_MACHINE_ARMT && \\r | |
4afd3d04 LG |
176 | ImageContext->Machine != EFI_IMAGE_MACHINE_EBC && \\r |
177 | ImageContext->Machine != EFI_IMAGE_MACHINE_AARCH64) {\r | |
30fdf114 LG |
178 | if (ImageContext->Machine == IMAGE_FILE_MACHINE_ARM) {\r |
179 | //\r | |
f7496d71 | 180 | // There are two types of ARM images. Pure ARM and ARM/Thumb.\r |
30fdf114 LG |
181 | // If we see the ARM say it is the ARM/Thumb so there is only\r |
182 | // a single machine type we need to check for ARM.\r | |
183 | //\r | |
184 | ImageContext->Machine = EFI_IMAGE_MACHINE_ARMT;\r | |
185 | if (ImageContext->IsTeImage == FALSE) {\r | |
186 | PeHdr->Pe32.FileHeader.Machine = ImageContext->Machine;\r | |
187 | } else {\r | |
188 | TeHdr->Machine = ImageContext->Machine;\r | |
189 | }\r | |
190 | \r | |
191 | } else {\r | |
192 | //\r | |
f7496d71 LG |
193 | // unsupported PeImage machine type\r |
194 | //\r | |
30fdf114 LG |
195 | return RETURN_UNSUPPORTED;\r |
196 | }\r | |
197 | }\r | |
198 | \r | |
199 | //\r | |
200 | // See if the image type is supported. We support EFI Applications,\r | |
201 | // EFI Boot Service Drivers, EFI Runtime Drivers and EFI SAL Drivers.\r | |
202 | //\r | |
203 | if (ImageContext->IsTeImage == FALSE) {\r | |
204 | ImageContext->ImageType = PeHdr->Pe32.OptionalHeader.Subsystem;\r | |
205 | } else {\r | |
206 | ImageContext->ImageType = (UINT16) (TeHdr->Subsystem);\r | |
207 | }\r | |
208 | \r | |
209 | if (ImageContext->ImageType != EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION && \\r | |
210 | ImageContext->ImageType != EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER && \\r | |
211 | ImageContext->ImageType != EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER && \\r | |
212 | ImageContext->ImageType != EFI_IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER) {\r | |
213 | //\r | |
fb0b35e0 | 214 | // unsupported PeImage subsystem type\r |
f7496d71 | 215 | //\r |
30fdf114 LG |
216 | return RETURN_UNSUPPORTED;\r |
217 | }\r | |
218 | \r | |
219 | return RETURN_SUCCESS;\r | |
220 | }\r | |
221 | \r | |
222 | RETURN_STATUS\r | |
223 | EFIAPI\r | |
224 | PeCoffLoaderGetImageInfo (\r | |
225 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r | |
226 | )\r | |
227 | /*++\r | |
228 | \r | |
229 | Routine Description:\r | |
230 | \r | |
231 | Retrieves information on a PE/COFF image\r | |
232 | \r | |
233 | Arguments:\r | |
234 | \r | |
235 | This - Calling context\r | |
236 | ImageContext - The context of the image being loaded\r | |
237 | \r | |
238 | Returns:\r | |
239 | \r | |
240 | RETURN_SUCCESS - The information on the PE/COFF image was collected.\r | |
241 | RETURN_INVALID_PARAMETER - ImageContext is NULL.\r | |
242 | RETURN_UNSUPPORTED - The PE/COFF image is not supported.\r | |
243 | Otherwise - The error status from reading the PE/COFF image using the\r | |
244 | ImageContext->ImageRead() function\r | |
245 | \r | |
246 | --*/\r | |
247 | {\r | |
248 | RETURN_STATUS Status;\r | |
249 | EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHdr;\r | |
250 | EFI_TE_IMAGE_HEADER *TeHdr;\r | |
251 | EFI_IMAGE_DATA_DIRECTORY *DebugDirectoryEntry;\r | |
252 | UINTN Size;\r | |
253 | UINTN Index;\r | |
254 | UINTN DebugDirectoryEntryRva;\r | |
255 | UINTN DebugDirectoryEntryFileOffset;\r | |
256 | UINTN SectionHeaderOffset;\r | |
257 | EFI_IMAGE_SECTION_HEADER SectionHeader;\r | |
258 | EFI_IMAGE_DEBUG_DIRECTORY_ENTRY DebugEntry;\r | |
259 | EFI_IMAGE_OPTIONAL_HEADER_POINTER OptionHeader;\r | |
260 | \r | |
261 | PeHdr = NULL;\r | |
262 | TeHdr = NULL;\r | |
263 | DebugDirectoryEntry = NULL;\r | |
264 | DebugDirectoryEntryRva = 0;\r | |
265 | \r | |
266 | if (NULL == ImageContext) {\r | |
267 | return RETURN_INVALID_PARAMETER;\r | |
268 | }\r | |
269 | //\r | |
270 | // Assume success\r | |
271 | //\r | |
272 | ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r | |
273 | \r | |
274 | Status = PeCoffLoaderGetPeHeader (ImageContext, &PeHdr, &TeHdr);\r | |
275 | if (RETURN_ERROR (Status)) {\r | |
276 | return Status;\r | |
277 | }\r | |
278 | \r | |
279 | //\r | |
280 | // Verify machine type\r | |
281 | //\r | |
282 | Status = PeCoffLoaderCheckImageType (ImageContext, PeHdr, TeHdr);\r | |
283 | if (RETURN_ERROR (Status)) {\r | |
284 | return Status;\r | |
285 | }\r | |
286 | OptionHeader.Header = (VOID *) &(PeHdr->Pe32.OptionalHeader);\r | |
287 | \r | |
288 | //\r | |
289 | // Retrieve the base address of the image\r | |
290 | //\r | |
291 | if (!(ImageContext->IsTeImage)) {\r | |
292 | if (PeHdr->Pe32.OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
293 | ImageContext->ImageAddress = (PHYSICAL_ADDRESS) OptionHeader.Optional32->ImageBase;\r | |
294 | } else {\r | |
295 | ImageContext->ImageAddress = (PHYSICAL_ADDRESS) OptionHeader.Optional64->ImageBase;\r | |
296 | }\r | |
297 | } else {\r | |
298 | ImageContext->ImageAddress = (PHYSICAL_ADDRESS) (TeHdr->ImageBase + TeHdr->StrippedSize - sizeof (EFI_TE_IMAGE_HEADER));\r | |
299 | }\r | |
300 | //\r | |
301 | // Initialize the alternate destination address to 0 indicating that it\r | |
302 | // should not be used.\r | |
303 | //\r | |
304 | ImageContext->DestinationAddress = 0;\r | |
305 | \r | |
306 | //\r | |
307 | // Initialize the codeview pointer.\r | |
308 | //\r | |
309 | ImageContext->CodeView = NULL;\r | |
310 | ImageContext->PdbPointer = NULL;\r | |
311 | \r | |
312 | //\r | |
313 | // Three cases with regards to relocations:\r | |
314 | // - Image has base relocs, RELOCS_STRIPPED==0 => image is relocatable\r | |
315 | // - Image has no base relocs, RELOCS_STRIPPED==1 => Image is not relocatable\r | |
316 | // - Image has no base relocs, RELOCS_STRIPPED==0 => Image is relocatable but\r | |
317 | // has no base relocs to apply\r | |
318 | // Obviously having base relocations with RELOCS_STRIPPED==1 is invalid.\r | |
319 | //\r | |
320 | // Look at the file header to determine if relocations have been stripped, and\r | |
321 | // save this info in the image context for later use.\r | |
322 | //\r | |
323 | if ((!(ImageContext->IsTeImage)) && ((PeHdr->Pe32.FileHeader.Characteristics & EFI_IMAGE_FILE_RELOCS_STRIPPED) != 0)) {\r | |
324 | ImageContext->RelocationsStripped = TRUE;\r | |
8866d337 | 325 | } else if ((ImageContext->IsTeImage) && (TeHdr->DataDirectory[0].Size == 0) && (TeHdr->DataDirectory[0].VirtualAddress == 0)) {\r |
30fdf114 LG |
326 | ImageContext->RelocationsStripped = TRUE;\r |
327 | } else {\r | |
328 | ImageContext->RelocationsStripped = FALSE;\r | |
329 | }\r | |
330 | \r | |
331 | if (!(ImageContext->IsTeImage)) {\r | |
332 | \r | |
333 | if (PeHdr->Pe32.OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
334 | ImageContext->ImageSize = (UINT64) OptionHeader.Optional32->SizeOfImage;\r | |
335 | ImageContext->SectionAlignment = OptionHeader.Optional32->SectionAlignment;\r | |
336 | ImageContext->SizeOfHeaders = OptionHeader.Optional32->SizeOfHeaders;\r | |
f7496d71 | 337 | \r |
30fdf114 LG |
338 | //\r |
339 | // Modify ImageSize to contain .PDB file name if required and initialize\r | |
340 | // PdbRVA field...\r | |
341 | //\r | |
342 | if (OptionHeader.Optional32->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {\r | |
343 | DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *) &(OptionHeader.Optional32->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r | |
344 | DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r | |
345 | }\r | |
346 | } else {\r | |
347 | ImageContext->ImageSize = (UINT64) OptionHeader.Optional64->SizeOfImage;\r | |
348 | ImageContext->SectionAlignment = OptionHeader.Optional64->SectionAlignment;\r | |
349 | ImageContext->SizeOfHeaders = OptionHeader.Optional64->SizeOfHeaders;\r | |
f7496d71 | 350 | \r |
30fdf114 LG |
351 | //\r |
352 | // Modify ImageSize to contain .PDB file name if required and initialize\r | |
353 | // PdbRVA field...\r | |
354 | //\r | |
355 | if (OptionHeader.Optional64->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {\r | |
356 | DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *) &(OptionHeader.Optional64->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r | |
357 | DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r | |
358 | }\r | |
359 | }\r | |
f7496d71 | 360 | \r |
30fdf114 LG |
361 | if (DebugDirectoryEntryRva != 0) {\r |
362 | //\r | |
363 | // Determine the file offset of the debug directory... This means we walk\r | |
364 | // the sections to find which section contains the RVA of the debug\r | |
365 | // directory\r | |
366 | //\r | |
367 | DebugDirectoryEntryFileOffset = 0;\r | |
368 | \r | |
369 | SectionHeaderOffset = (UINTN)(\r | |
370 | ImageContext->PeCoffHeaderOffset +\r | |
f7496d71 LG |
371 | sizeof (UINT32) +\r |
372 | sizeof (EFI_IMAGE_FILE_HEADER) +\r | |
30fdf114 LG |
373 | PeHdr->Pe32.FileHeader.SizeOfOptionalHeader\r |
374 | );\r | |
375 | \r | |
376 | for (Index = 0; Index < PeHdr->Pe32.FileHeader.NumberOfSections; Index++) {\r | |
377 | //\r | |
378 | // Read section header from file\r | |
379 | //\r | |
380 | Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
381 | Status = ImageContext->ImageRead (\r | |
382 | ImageContext->Handle,\r | |
383 | SectionHeaderOffset,\r | |
384 | &Size,\r | |
385 | &SectionHeader\r | |
386 | );\r | |
387 | if (RETURN_ERROR (Status)) {\r | |
388 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
389 | return Status;\r | |
390 | }\r | |
391 | \r | |
392 | if (DebugDirectoryEntryRva >= SectionHeader.VirtualAddress &&\r | |
393 | DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) {\r | |
394 | DebugDirectoryEntryFileOffset =\r | |
395 | DebugDirectoryEntryRva - SectionHeader.VirtualAddress + SectionHeader.PointerToRawData;\r | |
396 | break;\r | |
397 | }\r | |
398 | \r | |
399 | SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
400 | }\r | |
401 | \r | |
f7496d71 | 402 | if (DebugDirectoryEntryFileOffset != 0) {\r |
30fdf114 LG |
403 | for (Index = 0; Index < DebugDirectoryEntry->Size; Index += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY)) {\r |
404 | //\r | |
405 | // Read next debug directory entry\r | |
406 | //\r | |
f7496d71 | 407 | Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r |
30fdf114 LG |
408 | Status = ImageContext->ImageRead (\r |
409 | ImageContext->Handle,\r | |
410 | DebugDirectoryEntryFileOffset + Index,\r | |
411 | &Size,\r | |
412 | &DebugEntry\r | |
413 | );\r | |
414 | if (RETURN_ERROR (Status)) {\r | |
415 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
416 | return Status;\r | |
417 | }\r | |
418 | \r | |
419 | if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r | |
420 | ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index);\r | |
421 | if (DebugEntry.RVA == 0 && DebugEntry.FileOffset != 0) {\r | |
422 | ImageContext->ImageSize += DebugEntry.SizeOfData;\r | |
423 | }\r | |
424 | \r | |
425 | return RETURN_SUCCESS;\r | |
426 | }\r | |
427 | }\r | |
428 | }\r | |
429 | }\r | |
430 | } else {\r | |
431 | ImageContext->ImageSize = 0;\r | |
432 | ImageContext->SectionAlignment = 4096;\r | |
433 | ImageContext->SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN) TeHdr->BaseOfCode - (UINTN) TeHdr->StrippedSize;\r | |
434 | \r | |
435 | DebugDirectoryEntry = &TeHdr->DataDirectory[1];\r | |
436 | DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r | |
437 | SectionHeaderOffset = (UINTN) (sizeof (EFI_TE_IMAGE_HEADER));\r | |
438 | \r | |
439 | DebugDirectoryEntryFileOffset = 0;\r | |
440 | \r | |
441 | for (Index = 0; Index < TeHdr->NumberOfSections;) {\r | |
442 | //\r | |
443 | // Read section header from file\r | |
444 | //\r | |
445 | Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
446 | Status = ImageContext->ImageRead (\r | |
447 | ImageContext->Handle,\r | |
448 | SectionHeaderOffset,\r | |
449 | &Size,\r | |
450 | &SectionHeader\r | |
451 | );\r | |
452 | if (RETURN_ERROR (Status)) {\r | |
453 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
454 | return Status;\r | |
455 | }\r | |
456 | \r | |
457 | if (DebugDirectoryEntryRva >= SectionHeader.VirtualAddress &&\r | |
458 | DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) {\r | |
459 | DebugDirectoryEntryFileOffset = DebugDirectoryEntryRva -\r | |
460 | SectionHeader.VirtualAddress +\r | |
461 | SectionHeader.PointerToRawData +\r | |
462 | sizeof (EFI_TE_IMAGE_HEADER) -\r | |
463 | TeHdr->StrippedSize;\r | |
464 | \r | |
465 | //\r | |
466 | // File offset of the debug directory was found, if this is not the last\r | |
467 | // section, then skip to the last section for calculating the image size.\r | |
468 | //\r | |
469 | if (Index < (UINTN) TeHdr->NumberOfSections - 1) {\r | |
470 | SectionHeaderOffset += (TeHdr->NumberOfSections - 1 - Index) * sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
471 | Index = TeHdr->NumberOfSections - 1;\r | |
472 | continue;\r | |
473 | }\r | |
474 | }\r | |
475 | \r | |
476 | //\r | |
477 | // In Te image header there is not a field to describe the ImageSize.\r | |
f7496d71 LG |
478 | // Actually, the ImageSize equals the RVA plus the VirtualSize of\r |
479 | // the last section mapped into memory (Must be rounded up to\r | |
fb0b35e0 | 480 | // a multiple of Section Alignment). Per the PE/COFF specification, the\r |
30fdf114 LG |
481 | // section headers in the Section Table must appear in order of the RVA\r |
482 | // values for the corresponding sections. So the ImageSize can be determined\r | |
483 | // by the RVA and the VirtualSize of the last section header in the\r | |
484 | // Section Table.\r | |
485 | //\r | |
486 | if ((++Index) == (UINTN) TeHdr->NumberOfSections) {\r | |
487 | ImageContext->ImageSize = (SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize +\r | |
488 | ImageContext->SectionAlignment - 1) & ~(ImageContext->SectionAlignment - 1);\r | |
489 | }\r | |
490 | \r | |
491 | SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
492 | }\r | |
493 | \r | |
494 | if (DebugDirectoryEntryFileOffset != 0) {\r | |
495 | for (Index = 0; Index < DebugDirectoryEntry->Size; Index += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY)) {\r | |
496 | //\r | |
497 | // Read next debug directory entry\r | |
498 | //\r | |
499 | Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r | |
500 | Status = ImageContext->ImageRead (\r | |
501 | ImageContext->Handle,\r | |
502 | DebugDirectoryEntryFileOffset,\r | |
503 | &Size,\r | |
504 | &DebugEntry\r | |
505 | );\r | |
506 | if (RETURN_ERROR (Status)) {\r | |
507 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
508 | return Status;\r | |
509 | }\r | |
510 | \r | |
511 | if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r | |
512 | ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index);\r | |
513 | return RETURN_SUCCESS;\r | |
514 | }\r | |
515 | }\r | |
516 | }\r | |
517 | }\r | |
518 | \r | |
519 | return RETURN_SUCCESS;\r | |
520 | }\r | |
521 | \r | |
522 | STATIC\r | |
523 | VOID *\r | |
524 | PeCoffLoaderImageAddress (\r | |
525 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
526 | IN UINTN Address\r | |
527 | )\r | |
528 | /*++\r | |
529 | \r | |
530 | Routine Description:\r | |
531 | \r | |
532 | Converts an image address to the loaded address\r | |
533 | \r | |
534 | Arguments:\r | |
535 | \r | |
536 | ImageContext - The context of the image being loaded\r | |
537 | \r | |
538 | Address - The address to be converted to the loaded address\r | |
539 | \r | |
540 | Returns:\r | |
541 | \r | |
542 | NULL if the address can not be converted, otherwise, the converted address\r | |
543 | \r | |
544 | --*/\r | |
545 | {\r | |
546 | if (Address >= ImageContext->ImageSize) {\r | |
547 | ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r | |
548 | return NULL;\r | |
549 | }\r | |
550 | \r | |
551 | return (UINT8 *) ((UINTN) ImageContext->ImageAddress + Address);\r | |
552 | }\r | |
553 | \r | |
554 | RETURN_STATUS\r | |
555 | EFIAPI\r | |
556 | PeCoffLoaderRelocateImage (\r | |
557 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r | |
558 | )\r | |
559 | /*++\r | |
560 | \r | |
561 | Routine Description:\r | |
562 | \r | |
563 | Relocates a PE/COFF image in memory\r | |
564 | \r | |
565 | Arguments:\r | |
566 | \r | |
567 | This - Calling context\r | |
568 | \r | |
569 | ImageContext - Contains information on the loaded image to relocate\r | |
570 | \r | |
571 | Returns:\r | |
572 | \r | |
573 | RETURN_SUCCESS if the PE/COFF image was relocated\r | |
574 | RETURN_LOAD_ERROR if the image is not a valid PE/COFF image\r | |
575 | RETURN_UNSUPPORTED not support\r | |
576 | \r | |
577 | --*/\r | |
578 | {\r | |
579 | RETURN_STATUS Status;\r | |
580 | EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHdr;\r | |
581 | EFI_TE_IMAGE_HEADER *TeHdr;\r | |
582 | EFI_IMAGE_DATA_DIRECTORY *RelocDir;\r | |
583 | UINT64 Adjust;\r | |
584 | EFI_IMAGE_BASE_RELOCATION *RelocBase;\r | |
585 | EFI_IMAGE_BASE_RELOCATION *RelocBaseEnd;\r | |
586 | UINT16 *Reloc;\r | |
587 | UINT16 *RelocEnd;\r | |
588 | CHAR8 *Fixup;\r | |
589 | CHAR8 *FixupBase;\r | |
590 | UINT16 *F16;\r | |
591 | UINT32 *F32;\r | |
2c69d6ff | 592 | UINT64 *F64;\r |
30fdf114 LG |
593 | CHAR8 *FixupData;\r |
594 | PHYSICAL_ADDRESS BaseAddress;\r | |
595 | UINT16 MachineType;\r | |
596 | EFI_IMAGE_OPTIONAL_HEADER_POINTER OptionHeader;\r | |
597 | \r | |
598 | PeHdr = NULL;\r | |
599 | TeHdr = NULL;\r | |
600 | //\r | |
601 | // Assume success\r | |
602 | //\r | |
603 | ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r | |
604 | \r | |
605 | //\r | |
606 | // If there are no relocation entries, then we are done\r | |
607 | //\r | |
608 | if (ImageContext->RelocationsStripped) {\r | |
609 | return RETURN_SUCCESS;\r | |
610 | }\r | |
611 | \r | |
612 | //\r | |
9053bc51 | 613 | // Use DestinationAddress field of ImageContext as the relocation address even if it is 0.\r |
30fdf114 | 614 | //\r |
9053bc51 | 615 | BaseAddress = ImageContext->DestinationAddress;\r |
f7496d71 | 616 | \r |
30fdf114 | 617 | if (!(ImageContext->IsTeImage)) {\r |
f7496d71 | 618 | PeHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)((UINTN)ImageContext->ImageAddress +\r |
30fdf114 LG |
619 | ImageContext->PeCoffHeaderOffset);\r |
620 | OptionHeader.Header = (VOID *) &(PeHdr->Pe32.OptionalHeader);\r | |
621 | if (PeHdr->Pe32.OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
622 | Adjust = (UINT64) BaseAddress - OptionHeader.Optional32->ImageBase;\r | |
623 | OptionHeader.Optional32->ImageBase = (UINT32) BaseAddress;\r | |
624 | MachineType = ImageContext->Machine;\r | |
625 | //\r | |
626 | // Find the relocation block\r | |
627 | //\r | |
628 | // Per the PE/COFF spec, you can't assume that a given data directory\r | |
629 | // is present in the image. You have to check the NumberOfRvaAndSizes in\r | |
630 | // the optional header to verify a desired directory entry is there.\r | |
631 | //\r | |
632 | if (OptionHeader.Optional32->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r | |
633 | RelocDir = &OptionHeader.Optional32->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r | |
49d8f534 HW |
634 | if ((RelocDir != NULL) && (RelocDir->Size > 0)) {\r |
635 | RelocBase = PeCoffLoaderImageAddress (ImageContext, RelocDir->VirtualAddress);\r | |
636 | RelocBaseEnd = PeCoffLoaderImageAddress (\r | |
637 | ImageContext,\r | |
638 | RelocDir->VirtualAddress + RelocDir->Size - 1\r | |
639 | );\r | |
640 | if (RelocBase == NULL || RelocBaseEnd == NULL || RelocBaseEnd < RelocBase) {\r | |
641 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r | |
642 | return RETURN_LOAD_ERROR;\r | |
643 | }\r | |
644 | } else {\r | |
645 | //\r | |
646 | // Set base and end to bypass processing below.\r | |
647 | //\r | |
648 | RelocBase = RelocBaseEnd = 0;\r | |
2ff3293d | 649 | }\r |
30fdf114 LG |
650 | } else {\r |
651 | //\r | |
652 | // Set base and end to bypass processing below.\r | |
653 | //\r | |
654 | RelocBase = RelocBaseEnd = 0;\r | |
655 | }\r | |
656 | } else {\r | |
657 | Adjust = (UINT64) BaseAddress - OptionHeader.Optional64->ImageBase;\r | |
658 | OptionHeader.Optional64->ImageBase = BaseAddress;\r | |
659 | MachineType = ImageContext->Machine;\r | |
660 | //\r | |
661 | // Find the relocation block\r | |
662 | //\r | |
663 | // Per the PE/COFF spec, you can't assume that a given data directory\r | |
664 | // is present in the image. You have to check the NumberOfRvaAndSizes in\r | |
665 | // the optional header to verify a desired directory entry is there.\r | |
666 | //\r | |
667 | if (OptionHeader.Optional64->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r | |
668 | RelocDir = &OptionHeader.Optional64->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r | |
49d8f534 HW |
669 | if ((RelocDir != NULL) && (RelocDir->Size > 0)) {\r |
670 | RelocBase = PeCoffLoaderImageAddress (ImageContext, RelocDir->VirtualAddress);\r | |
671 | RelocBaseEnd = PeCoffLoaderImageAddress (\r | |
672 | ImageContext,\r | |
673 | RelocDir->VirtualAddress + RelocDir->Size - 1\r | |
674 | );\r | |
675 | if (RelocBase == NULL || RelocBaseEnd == NULL || RelocBaseEnd < RelocBase) {\r | |
676 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r | |
677 | return RETURN_LOAD_ERROR;\r | |
678 | }\r | |
679 | } else {\r | |
680 | //\r | |
681 | // Set base and end to bypass processing below.\r | |
682 | //\r | |
683 | RelocBase = RelocBaseEnd = 0;\r | |
2ff3293d | 684 | }\r |
30fdf114 LG |
685 | } else {\r |
686 | //\r | |
687 | // Set base and end to bypass processing below.\r | |
688 | //\r | |
689 | RelocBase = RelocBaseEnd = 0;\r | |
690 | }\r | |
691 | }\r | |
692 | } else {\r | |
693 | TeHdr = (EFI_TE_IMAGE_HEADER *) (UINTN) (ImageContext->ImageAddress);\r | |
694 | Adjust = (UINT64) (BaseAddress - TeHdr->ImageBase);\r | |
695 | TeHdr->ImageBase = (UINT64) (BaseAddress);\r | |
696 | MachineType = TeHdr->Machine;\r | |
f7496d71 | 697 | \r |
30fdf114 LG |
698 | //\r |
699 | // Find the relocation block\r | |
700 | //\r | |
701 | RelocDir = &TeHdr->DataDirectory[0];\r | |
702 | RelocBase = (EFI_IMAGE_BASE_RELOCATION *)(UINTN)(\r | |
f7496d71 | 703 | ImageContext->ImageAddress +\r |
30fdf114 | 704 | RelocDir->VirtualAddress +\r |
f7496d71 | 705 | sizeof(EFI_TE_IMAGE_HEADER) -\r |
30fdf114 LG |
706 | TeHdr->StrippedSize\r |
707 | );\r | |
708 | RelocBaseEnd = (EFI_IMAGE_BASE_RELOCATION *) ((UINTN) RelocBase + (UINTN) RelocDir->Size - 1);\r | |
709 | }\r | |
f7496d71 | 710 | \r |
30fdf114 LG |
711 | //\r |
712 | // Run the relocation information and apply the fixups\r | |
713 | //\r | |
714 | FixupData = ImageContext->FixupData;\r | |
715 | while (RelocBase < RelocBaseEnd) {\r | |
716 | \r | |
717 | Reloc = (UINT16 *) ((CHAR8 *) RelocBase + sizeof (EFI_IMAGE_BASE_RELOCATION));\r | |
718 | RelocEnd = (UINT16 *) ((CHAR8 *) RelocBase + RelocBase->SizeOfBlock);\r | |
719 | if (!(ImageContext->IsTeImage)) {\r | |
720 | FixupBase = PeCoffLoaderImageAddress (ImageContext, RelocBase->VirtualAddress);\r | |
2ff3293d HW |
721 | if (FixupBase == NULL) {\r |
722 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r | |
723 | return RETURN_LOAD_ERROR;\r | |
724 | }\r | |
30fdf114 LG |
725 | } else {\r |
726 | FixupBase = (CHAR8 *)(UINTN)(ImageContext->ImageAddress +\r | |
727 | RelocBase->VirtualAddress +\r | |
f7496d71 | 728 | sizeof(EFI_TE_IMAGE_HEADER) -\r |
30fdf114 LG |
729 | TeHdr->StrippedSize\r |
730 | );\r | |
731 | }\r | |
732 | \r | |
733 | if ((CHAR8 *) RelocEnd < (CHAR8 *) ((UINTN) ImageContext->ImageAddress) ||\r | |
f7496d71 | 734 | (CHAR8 *) RelocEnd > (CHAR8 *)((UINTN)ImageContext->ImageAddress +\r |
30fdf114 LG |
735 | (UINTN)ImageContext->ImageSize)) {\r |
736 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r | |
737 | return RETURN_LOAD_ERROR;\r | |
738 | }\r | |
739 | \r | |
740 | //\r | |
741 | // Run this relocation record\r | |
742 | //\r | |
743 | while (Reloc < RelocEnd) {\r | |
744 | \r | |
745 | Fixup = FixupBase + (*Reloc & 0xFFF);\r | |
746 | switch ((*Reloc) >> 12) {\r | |
747 | case EFI_IMAGE_REL_BASED_ABSOLUTE:\r | |
748 | break;\r | |
749 | \r | |
750 | case EFI_IMAGE_REL_BASED_HIGH:\r | |
751 | F16 = (UINT16 *) Fixup;\r | |
752 | *F16 = (UINT16) (*F16 + ((UINT16) ((UINT32) Adjust >> 16)));\r | |
753 | if (FixupData != NULL) {\r | |
754 | *(UINT16 *) FixupData = *F16;\r | |
755 | FixupData = FixupData + sizeof (UINT16);\r | |
756 | }\r | |
757 | break;\r | |
758 | \r | |
759 | case EFI_IMAGE_REL_BASED_LOW:\r | |
760 | F16 = (UINT16 *) Fixup;\r | |
761 | *F16 = (UINT16) (*F16 + (UINT16) Adjust);\r | |
762 | if (FixupData != NULL) {\r | |
763 | *(UINT16 *) FixupData = *F16;\r | |
764 | FixupData = FixupData + sizeof (UINT16);\r | |
765 | }\r | |
766 | break;\r | |
767 | \r | |
768 | case EFI_IMAGE_REL_BASED_HIGHLOW:\r | |
769 | F32 = (UINT32 *) Fixup;\r | |
770 | *F32 = *F32 + (UINT32) Adjust;\r | |
771 | if (FixupData != NULL) {\r | |
772 | FixupData = ALIGN_POINTER (FixupData, sizeof (UINT32));\r | |
773 | *(UINT32 *) FixupData = *F32;\r | |
774 | FixupData = FixupData + sizeof (UINT32);\r | |
775 | }\r | |
776 | break;\r | |
777 | \r | |
2c69d6ff AB |
778 | case EFI_IMAGE_REL_BASED_DIR64:\r |
779 | F64 = (UINT64 *) Fixup;\r | |
780 | *F64 = *F64 + (UINT64) Adjust;\r | |
781 | if (FixupData != NULL) {\r | |
782 | FixupData = ALIGN_POINTER (FixupData, sizeof (UINT64));\r | |
783 | *(UINT64 *) FixupData = *F64;\r | |
784 | FixupData = FixupData + sizeof (UINT64);\r | |
785 | }\r | |
786 | break;\r | |
787 | \r | |
30fdf114 LG |
788 | case EFI_IMAGE_REL_BASED_HIGHADJ:\r |
789 | //\r | |
790 | // Return the same EFI_UNSUPPORTED return code as\r | |
791 | // PeCoffLoaderRelocateImageEx() returns if it does not recognize\r | |
792 | // the relocation type.\r | |
793 | //\r | |
794 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r | |
795 | return RETURN_UNSUPPORTED;\r | |
796 | \r | |
797 | default:\r | |
798 | switch (MachineType) {\r | |
799 | case EFI_IMAGE_MACHINE_IA32:\r | |
30fdf114 LG |
800 | Status = PeCoffLoaderRelocateIa32Image (Reloc, Fixup, &FixupData, Adjust);\r |
801 | break;\r | |
40d841f6 LG |
802 | case EFI_IMAGE_MACHINE_ARMT:\r |
803 | Status = PeCoffLoaderRelocateArmImage (&Reloc, Fixup, &FixupData, Adjust);\r | |
804 | break;\r | |
30fdf114 LG |
805 | default:\r |
806 | Status = RETURN_UNSUPPORTED;\r | |
807 | break;\r | |
808 | }\r | |
809 | if (RETURN_ERROR (Status)) {\r | |
810 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r | |
811 | return Status;\r | |
812 | }\r | |
813 | }\r | |
814 | \r | |
815 | //\r | |
816 | // Next relocation record\r | |
817 | //\r | |
818 | Reloc += 1;\r | |
819 | }\r | |
820 | \r | |
821 | //\r | |
822 | // Next reloc block\r | |
823 | //\r | |
824 | RelocBase = (EFI_IMAGE_BASE_RELOCATION *) RelocEnd;\r | |
825 | }\r | |
826 | \r | |
827 | return RETURN_SUCCESS;\r | |
828 | }\r | |
829 | \r | |
830 | RETURN_STATUS\r | |
831 | EFIAPI\r | |
832 | PeCoffLoaderLoadImage (\r | |
833 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r | |
834 | )\r | |
835 | /*++\r | |
836 | \r | |
837 | Routine Description:\r | |
838 | \r | |
839 | Loads a PE/COFF image into memory\r | |
840 | \r | |
841 | Arguments:\r | |
842 | \r | |
843 | This - Calling context\r | |
844 | \r | |
845 | ImageContext - Contains information on image to load into memory\r | |
846 | \r | |
847 | Returns:\r | |
848 | \r | |
849 | RETURN_SUCCESS if the PE/COFF image was loaded\r | |
850 | RETURN_BUFFER_TOO_SMALL if the caller did not provide a large enough buffer\r | |
851 | RETURN_LOAD_ERROR if the image is a runtime driver with no relocations\r | |
852 | RETURN_INVALID_PARAMETER if the image address is invalid\r | |
853 | \r | |
854 | --*/\r | |
855 | {\r | |
856 | RETURN_STATUS Status;\r | |
857 | EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHdr;\r | |
858 | EFI_TE_IMAGE_HEADER *TeHdr;\r | |
859 | PE_COFF_LOADER_IMAGE_CONTEXT CheckContext;\r | |
860 | EFI_IMAGE_SECTION_HEADER *FirstSection;\r | |
861 | EFI_IMAGE_SECTION_HEADER *Section;\r | |
862 | UINTN NumberOfSections;\r | |
863 | UINTN Index;\r | |
864 | CHAR8 *Base;\r | |
865 | CHAR8 *End;\r | |
866 | CHAR8 *MaxEnd;\r | |
867 | EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;\r | |
868 | EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;\r | |
869 | UINTN Size;\r | |
870 | UINT32 TempDebugEntryRva;\r | |
871 | EFI_IMAGE_OPTIONAL_HEADER_POINTER OptionHeader;\r | |
872 | \r | |
873 | PeHdr = NULL;\r | |
874 | TeHdr = NULL;\r | |
fd171542 | 875 | OptionHeader.Header = NULL;\r |
30fdf114 LG |
876 | //\r |
877 | // Assume success\r | |
878 | //\r | |
879 | ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r | |
880 | \r | |
881 | //\r | |
882 | // Copy the provided context info into our local version, get what we\r | |
883 | // can from the original image, and then use that to make sure everything\r | |
884 | // is legit.\r | |
885 | //\r | |
886 | CopyMem (&CheckContext, ImageContext, sizeof (PE_COFF_LOADER_IMAGE_CONTEXT));\r | |
887 | \r | |
888 | Status = PeCoffLoaderGetImageInfo (&CheckContext);\r | |
889 | if (RETURN_ERROR (Status)) {\r | |
890 | return Status;\r | |
891 | }\r | |
892 | \r | |
893 | //\r | |
894 | // Make sure there is enough allocated space for the image being loaded\r | |
895 | //\r | |
896 | if (ImageContext->ImageSize < CheckContext.ImageSize) {\r | |
897 | ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_SIZE;\r | |
898 | return RETURN_BUFFER_TOO_SMALL;\r | |
899 | }\r | |
900 | \r | |
901 | //\r | |
902 | // If there's no relocations, then make sure it's not a runtime driver,\r | |
903 | // and that it's being loaded at the linked address.\r | |
904 | //\r | |
905 | if (CheckContext.RelocationsStripped) {\r | |
906 | //\r | |
907 | // If the image does not contain relocations and it is a runtime driver\r | |
908 | // then return an error.\r | |
909 | //\r | |
910 | if (CheckContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) {\r | |
911 | ImageContext->ImageError = IMAGE_ERROR_INVALID_SUBSYSTEM;\r | |
912 | return RETURN_LOAD_ERROR;\r | |
913 | }\r | |
914 | //\r | |
915 | // If the image does not contain relocations, and the requested load address\r | |
916 | // is not the linked address, then return an error.\r | |
917 | //\r | |
918 | if (CheckContext.ImageAddress != ImageContext->ImageAddress) {\r | |
919 | ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r | |
920 | return RETURN_INVALID_PARAMETER;\r | |
921 | }\r | |
922 | }\r | |
923 | //\r | |
924 | // Make sure the allocated space has the proper section alignment\r | |
925 | //\r | |
926 | if (!(ImageContext->IsTeImage)) {\r | |
927 | if ((ImageContext->ImageAddress & (CheckContext.SectionAlignment - 1)) != 0) {\r | |
928 | ImageContext->ImageError = IMAGE_ERROR_INVALID_SECTION_ALIGNMENT;\r | |
929 | return RETURN_INVALID_PARAMETER;\r | |
930 | }\r | |
931 | }\r | |
932 | //\r | |
933 | // Read the entire PE/COFF or TE header into memory\r | |
934 | //\r | |
935 | if (!(ImageContext->IsTeImage)) {\r | |
936 | Status = ImageContext->ImageRead (\r | |
937 | ImageContext->Handle,\r | |
938 | 0,\r | |
939 | &ImageContext->SizeOfHeaders,\r | |
940 | (VOID *) (UINTN) ImageContext->ImageAddress\r | |
941 | );\r | |
942 | \r | |
943 | PeHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)\r | |
944 | ((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);\r | |
945 | \r | |
946 | OptionHeader.Header = (VOID *) &(PeHdr->Pe32.OptionalHeader);\r | |
f7496d71 | 947 | \r |
30fdf114 LG |
948 | FirstSection = (EFI_IMAGE_SECTION_HEADER *) (\r |
949 | (UINTN)ImageContext->ImageAddress +\r | |
950 | ImageContext->PeCoffHeaderOffset +\r | |
f7496d71 LG |
951 | sizeof(UINT32) +\r |
952 | sizeof(EFI_IMAGE_FILE_HEADER) +\r | |
30fdf114 LG |
953 | PeHdr->Pe32.FileHeader.SizeOfOptionalHeader\r |
954 | );\r | |
955 | NumberOfSections = (UINTN) (PeHdr->Pe32.FileHeader.NumberOfSections);\r | |
956 | } else {\r | |
957 | Status = ImageContext->ImageRead (\r | |
958 | ImageContext->Handle,\r | |
959 | 0,\r | |
960 | &ImageContext->SizeOfHeaders,\r | |
961 | (VOID *) (UINTN) ImageContext->ImageAddress\r | |
962 | );\r | |
963 | \r | |
964 | TeHdr = (EFI_TE_IMAGE_HEADER *) (UINTN) (ImageContext->ImageAddress);\r | |
965 | \r | |
966 | FirstSection = (EFI_IMAGE_SECTION_HEADER *) (\r | |
967 | (UINTN)ImageContext->ImageAddress +\r | |
968 | sizeof(EFI_TE_IMAGE_HEADER)\r | |
969 | );\r | |
970 | NumberOfSections = (UINTN) (TeHdr->NumberOfSections);\r | |
971 | \r | |
972 | }\r | |
973 | \r | |
974 | if (RETURN_ERROR (Status)) {\r | |
975 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
976 | return RETURN_LOAD_ERROR;\r | |
977 | }\r | |
978 | \r | |
979 | //\r | |
980 | // Load each section of the image\r | |
981 | //\r | |
982 | Section = FirstSection;\r | |
983 | for (Index = 0, MaxEnd = NULL; Index < NumberOfSections; Index++) {\r | |
984 | \r | |
985 | //\r | |
986 | // Compute sections address\r | |
987 | //\r | |
988 | Base = PeCoffLoaderImageAddress (ImageContext, Section->VirtualAddress);\r | |
989 | End = PeCoffLoaderImageAddress (\r | |
990 | ImageContext,\r | |
991 | Section->VirtualAddress + Section->Misc.VirtualSize - 1\r | |
992 | );\r | |
0d2711a6 | 993 | \r |
b36d134f LG |
994 | //\r |
995 | // If the base start or end address resolved to 0, then fail.\r | |
996 | //\r | |
997 | if ((Base == NULL) || (End == NULL)) {\r | |
998 | ImageContext->ImageError = IMAGE_ERROR_SECTION_NOT_LOADED;\r | |
999 | return RETURN_LOAD_ERROR;\r | |
1000 | }\r | |
1001 | \r | |
f7496d71 | 1002 | \r |
30fdf114 LG |
1003 | if (ImageContext->IsTeImage) {\r |
1004 | Base = (CHAR8 *) ((UINTN) Base + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize);\r | |
1005 | End = (CHAR8 *) ((UINTN) End + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize);\r | |
1006 | }\r | |
1007 | \r | |
1008 | if (End > MaxEnd) {\r | |
1009 | MaxEnd = End;\r | |
1010 | }\r | |
30fdf114 LG |
1011 | \r |
1012 | //\r | |
1013 | // Read the section\r | |
1014 | //\r | |
1015 | Size = (UINTN) Section->Misc.VirtualSize;\r | |
1016 | if ((Size == 0) || (Size > Section->SizeOfRawData)) {\r | |
1017 | Size = (UINTN) Section->SizeOfRawData;\r | |
1018 | }\r | |
1019 | \r | |
1020 | if (Section->SizeOfRawData) {\r | |
1021 | if (!(ImageContext->IsTeImage)) {\r | |
1022 | Status = ImageContext->ImageRead (\r | |
1023 | ImageContext->Handle,\r | |
1024 | Section->PointerToRawData,\r | |
1025 | &Size,\r | |
1026 | Base\r | |
1027 | );\r | |
1028 | } else {\r | |
1029 | Status = ImageContext->ImageRead (\r | |
1030 | ImageContext->Handle,\r | |
1031 | Section->PointerToRawData + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize,\r | |
1032 | &Size,\r | |
1033 | Base\r | |
1034 | );\r | |
1035 | }\r | |
1036 | \r | |
1037 | if (RETURN_ERROR (Status)) {\r | |
1038 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
1039 | return Status;\r | |
1040 | }\r | |
1041 | }\r | |
1042 | \r | |
1043 | //\r | |
1044 | // If raw size is less then virt size, zero fill the remaining\r | |
1045 | //\r | |
1046 | \r | |
1047 | if (Size < Section->Misc.VirtualSize) {\r | |
1048 | ZeroMem (Base + Size, Section->Misc.VirtualSize - Size);\r | |
1049 | }\r | |
1050 | \r | |
1051 | //\r | |
1052 | // Next Section\r | |
1053 | //\r | |
1054 | Section += 1;\r | |
1055 | }\r | |
1056 | \r | |
1057 | //\r | |
1058 | // Get image's entry point\r | |
1059 | //\r | |
1060 | if (!(ImageContext->IsTeImage)) {\r | |
1061 | ImageContext->EntryPoint = (PHYSICAL_ADDRESS) (UINTN) PeCoffLoaderImageAddress (\r | |
1062 | ImageContext,\r | |
1063 | PeHdr->Pe32.OptionalHeader.AddressOfEntryPoint\r | |
1064 | );\r | |
1065 | } else {\r | |
b567adb8 HW |
1066 | ImageContext->EntryPoint = (UINTN)ImageContext->ImageAddress +\r |
1067 | (UINTN)TeHdr->AddressOfEntryPoint +\r | |
1068 | (UINTN)sizeof(EFI_TE_IMAGE_HEADER) -\r | |
1069 | (UINTN) TeHdr->StrippedSize;\r | |
30fdf114 LG |
1070 | }\r |
1071 | \r | |
1072 | //\r | |
1073 | // Determine the size of the fixup data\r | |
1074 | //\r | |
1075 | // Per the PE/COFF spec, you can't assume that a given data directory\r | |
1076 | // is present in the image. You have to check the NumberOfRvaAndSizes in\r | |
1077 | // the optional header to verify a desired directory entry is there.\r | |
1078 | //\r | |
1079 | if (!(ImageContext->IsTeImage)) {\r | |
1080 | if (PeHdr->Pe32.OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
1081 | if (OptionHeader.Optional32->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r | |
1082 | DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)\r | |
1083 | &OptionHeader.Optional32->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r | |
1084 | ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);\r | |
1085 | } else {\r | |
1086 | ImageContext->FixupDataSize = 0;\r | |
1087 | }\r | |
1088 | } else {\r | |
1089 | if (OptionHeader.Optional64->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r | |
1090 | DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)\r | |
1091 | &OptionHeader.Optional64->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r | |
1092 | ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);\r | |
1093 | } else {\r | |
1094 | ImageContext->FixupDataSize = 0;\r | |
1095 | }\r | |
1096 | }\r | |
1097 | } else {\r | |
1098 | DirectoryEntry = &TeHdr->DataDirectory[0];\r | |
1099 | ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);\r | |
1100 | }\r | |
1101 | //\r | |
1102 | // Consumer must allocate a buffer for the relocation fixup log.\r | |
1103 | // Only used for runtime drivers.\r | |
1104 | //\r | |
1105 | ImageContext->FixupData = NULL;\r | |
1106 | \r | |
1107 | //\r | |
1108 | // Load the Codeview info if present\r | |
1109 | //\r | |
1110 | if (ImageContext->DebugDirectoryEntryRva != 0) {\r | |
1111 | if (!(ImageContext->IsTeImage)) {\r | |
1112 | DebugEntry = PeCoffLoaderImageAddress (\r | |
1113 | ImageContext,\r | |
1114 | ImageContext->DebugDirectoryEntryRva\r | |
1115 | );\r | |
1116 | } else {\r | |
1117 | DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)(UINTN)(\r | |
1118 | ImageContext->ImageAddress +\r | |
1119 | ImageContext->DebugDirectoryEntryRva +\r | |
1120 | sizeof(EFI_TE_IMAGE_HEADER) -\r | |
1121 | TeHdr->StrippedSize\r | |
1122 | );\r | |
1123 | }\r | |
1124 | \r | |
1125 | if (DebugEntry != NULL) {\r | |
1126 | TempDebugEntryRva = DebugEntry->RVA;\r | |
1127 | if (DebugEntry->RVA == 0 && DebugEntry->FileOffset != 0) {\r | |
1128 | Section--;\r | |
1129 | if ((UINTN) Section->SizeOfRawData < Section->Misc.VirtualSize) {\r | |
1130 | TempDebugEntryRva = Section->VirtualAddress + Section->Misc.VirtualSize;\r | |
1131 | } else {\r | |
1132 | TempDebugEntryRva = Section->VirtualAddress + Section->SizeOfRawData;\r | |
1133 | }\r | |
1134 | }\r | |
1135 | \r | |
1136 | if (TempDebugEntryRva != 0) {\r | |
1137 | if (!(ImageContext->IsTeImage)) {\r | |
1138 | ImageContext->CodeView = PeCoffLoaderImageAddress (ImageContext, TempDebugEntryRva);\r | |
1139 | } else {\r | |
1140 | ImageContext->CodeView = (VOID *)(\r | |
1141 | (UINTN)ImageContext->ImageAddress +\r | |
1142 | (UINTN)TempDebugEntryRva +\r | |
1143 | (UINTN)sizeof(EFI_TE_IMAGE_HEADER) -\r | |
1144 | (UINTN) TeHdr->StrippedSize\r | |
1145 | );\r | |
1146 | }\r | |
1147 | \r | |
1148 | if (ImageContext->CodeView == NULL) {\r | |
1149 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
1150 | return RETURN_LOAD_ERROR;\r | |
1151 | }\r | |
1152 | \r | |
1153 | if (DebugEntry->RVA == 0) {\r | |
1154 | Size = DebugEntry->SizeOfData;\r | |
1155 | if (!(ImageContext->IsTeImage)) {\r | |
1156 | Status = ImageContext->ImageRead (\r | |
1157 | ImageContext->Handle,\r | |
1158 | DebugEntry->FileOffset,\r | |
1159 | &Size,\r | |
1160 | ImageContext->CodeView\r | |
1161 | );\r | |
1162 | } else {\r | |
1163 | Status = ImageContext->ImageRead (\r | |
1164 | ImageContext->Handle,\r | |
1165 | DebugEntry->FileOffset + sizeof (EFI_TE_IMAGE_HEADER) - TeHdr->StrippedSize,\r | |
1166 | &Size,\r | |
1167 | ImageContext->CodeView\r | |
1168 | );\r | |
1169 | //\r | |
1170 | // Should we apply fix up to this field according to the size difference between PE and TE?\r | |
1171 | // Because now we maintain TE header fields unfixed, this field will also remain as they are\r | |
1172 | // in original PE image.\r | |
1173 | //\r | |
1174 | }\r | |
1175 | \r | |
1176 | if (RETURN_ERROR (Status)) {\r | |
1177 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r | |
1178 | return RETURN_LOAD_ERROR;\r | |
1179 | }\r | |
1180 | \r | |
1181 | DebugEntry->RVA = TempDebugEntryRva;\r | |
1182 | }\r | |
1183 | \r | |
1184 | switch (*(UINT32 *) ImageContext->CodeView) {\r | |
1185 | case CODEVIEW_SIGNATURE_NB10:\r | |
1186 | ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY);\r | |
1187 | break;\r | |
1188 | \r | |
1189 | case CODEVIEW_SIGNATURE_RSDS:\r | |
1190 | ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY);\r | |
1191 | break;\r | |
1192 | \r | |
a709adfa LG |
1193 | case CODEVIEW_SIGNATURE_MTOC:\r |
1194 | ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY);\r | |
1195 | \r | |
30fdf114 LG |
1196 | default:\r |
1197 | break;\r | |
1198 | }\r | |
1199 | }\r | |
1200 | }\r | |
1201 | }\r | |
1202 | \r | |
1203 | return Status;\r | |
1204 | }\r | |
1205 | \r | |
1206 | /**\r | |
1207 | Returns a pointer to the PDB file name for a raw PE/COFF image that is not\r | |
1208 | loaded into system memory with the PE/COFF Loader Library functions.\r | |
1209 | \r | |
1210 | Returns the PDB file name for the PE/COFF image specified by Pe32Data. If\r | |
1211 | the PE/COFF image specified by Pe32Data is not a valid, then NULL is\r | |
1212 | returned. If the PE/COFF image specified by Pe32Data does not contain a\r | |
1213 | debug directory entry, then NULL is returned. If the debug directory entry\r | |
1214 | in the PE/COFF image specified by Pe32Data does not contain a PDB file name,\r | |
1215 | then NULL is returned.\r | |
1216 | If Pe32Data is NULL, then return NULL.\r | |
1217 | \r | |
1218 | @param Pe32Data Pointer to the PE/COFF image that is loaded in system\r | |
1219 | memory.\r | |
1220 | \r | |
1221 | @return The PDB file name for the PE/COFF image specified by Pe32Data or NULL\r | |
1222 | if it cannot be retrieved.\r | |
1223 | \r | |
1224 | **/\r | |
1225 | VOID *\r | |
1226 | EFIAPI\r | |
1227 | PeCoffLoaderGetPdbPointer (\r | |
1228 | IN VOID *Pe32Data\r | |
1229 | )\r | |
1230 | {\r | |
1231 | EFI_IMAGE_DOS_HEADER *DosHdr;\r | |
1232 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
1233 | EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;\r | |
1234 | EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;\r | |
1235 | UINTN DirCount;\r | |
1236 | VOID *CodeViewEntryPointer;\r | |
1237 | INTN TEImageAdjust;\r | |
1238 | UINT32 NumberOfRvaAndSizes;\r | |
1239 | UINT16 Magic;\r | |
1240 | EFI_IMAGE_SECTION_HEADER *SectionHeader;\r | |
1241 | UINT32 Index, Index1;\r | |
1242 | \r | |
1243 | if (Pe32Data == NULL) {\r | |
1244 | return NULL;\r | |
1245 | }\r | |
1246 | \r | |
1247 | TEImageAdjust = 0;\r | |
1248 | DirectoryEntry = NULL;\r | |
1249 | DebugEntry = NULL;\r | |
1250 | NumberOfRvaAndSizes = 0;\r | |
1251 | Index = 0;\r | |
1252 | Index1 = 0;\r | |
1253 | SectionHeader = NULL;\r | |
1254 | \r | |
1255 | DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r | |
1256 | if (EFI_IMAGE_DOS_SIGNATURE == DosHdr->e_magic) {\r | |
1257 | //\r | |
1258 | // DOS image header is present, so read the PE header after the DOS image header.\r | |
1259 | //\r | |
1260 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));\r | |
1261 | } else {\r | |
1262 | //\r | |
1263 | // DOS image header is not present, so PE header is at the image base.\r | |
1264 | //\r | |
1265 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r | |
1266 | }\r | |
1267 | \r | |
1268 | if (EFI_TE_IMAGE_HEADER_SIGNATURE == Hdr.Te->Signature) {\r | |
1269 | if (Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress != 0) {\r | |
1270 | DirectoryEntry = &Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG];\r | |
1271 | TEImageAdjust = sizeof (EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize;\r | |
f7496d71 | 1272 | \r |
30fdf114 LG |
1273 | //\r |
1274 | // Get the DebugEntry offset in the raw data image.\r | |
1275 | //\r | |
fd171542 | 1276 | SectionHeader = (EFI_IMAGE_SECTION_HEADER *) (Hdr.Te + 1);\r |
1277 | Index = Hdr.Te->NumberOfSections;\r | |
30fdf114 | 1278 | for (Index1 = 0; Index1 < Index; Index1 ++) {\r |
f7496d71 | 1279 | if ((DirectoryEntry->VirtualAddress >= SectionHeader[Index1].VirtualAddress) &&\r |
fd171542 | 1280 | (DirectoryEntry->VirtualAddress < (SectionHeader[Index1].VirtualAddress + SectionHeader[Index1].Misc.VirtualSize))) {\r |
30fdf114 | 1281 | DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)((UINTN) Hdr.Te +\r |
f7496d71 LG |
1282 | DirectoryEntry->VirtualAddress -\r |
1283 | SectionHeader [Index1].VirtualAddress +\r | |
1284 | SectionHeader [Index1].PointerToRawData +\r | |
30fdf114 LG |
1285 | TEImageAdjust);\r |
1286 | break;\r | |
1287 | }\r | |
1288 | }\r | |
1289 | }\r | |
1290 | } else if (EFI_IMAGE_NT_SIGNATURE == Hdr.Pe32->Signature) {\r | |
1291 | //\r | |
1292 | // NOTE: We use Machine field to identify PE32/PE32+, instead of Magic.\r | |
1293 | // It is due to backward-compatibility, for some system might\r | |
1294 | // generate PE32+ image with PE32 Magic.\r | |
1295 | //\r | |
1296 | switch (Hdr.Pe32->FileHeader.Machine) {\r | |
1297 | case EFI_IMAGE_MACHINE_IA32:\r | |
1298 | case EFI_IMAGE_MACHINE_ARMT:\r | |
1299 | //\r | |
1300 | // Assume PE32 image with IA32 Machine field.\r | |
1301 | //\r | |
1302 | Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;\r | |
1303 | break;\r | |
1304 | case EFI_IMAGE_MACHINE_X64:\r | |
30fdf114 | 1305 | //\r |
8daa4278 | 1306 | // Assume PE32+ image with X64 Machine field\r |
30fdf114 LG |
1307 | //\r |
1308 | Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r | |
1309 | break;\r | |
1310 | default:\r | |
1311 | //\r | |
fb0b35e0 | 1312 | // For unknown Machine field, use Magic in optional Header\r |
30fdf114 LG |
1313 | //\r |
1314 | Magic = Hdr.Pe32->OptionalHeader.Magic;\r | |
1315 | }\r | |
1316 | \r | |
1317 | SectionHeader = (EFI_IMAGE_SECTION_HEADER *) (\r | |
1318 | (UINT8 *) Hdr.Pe32 +\r | |
f7496d71 LG |
1319 | sizeof (UINT32) +\r |
1320 | sizeof (EFI_IMAGE_FILE_HEADER) +\r | |
30fdf114 LG |
1321 | Hdr.Pe32->FileHeader.SizeOfOptionalHeader\r |
1322 | );\r | |
1323 | Index = Hdr.Pe32->FileHeader.NumberOfSections;\r | |
1324 | \r | |
1325 | if (EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC == Magic) {\r | |
1326 | //\r | |
1327 | // Use PE32 offset get Debug Directory Entry\r | |
1328 | //\r | |
1329 | NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r | |
1330 | DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r | |
1331 | } else if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {\r | |
1332 | //\r | |
1333 | // Use PE32+ offset get Debug Directory Entry\r | |
1334 | //\r | |
1335 | NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r | |
1336 | DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r | |
1337 | }\r | |
1338 | \r | |
1339 | if (NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY_DEBUG || DirectoryEntry->VirtualAddress == 0) {\r | |
1340 | DirectoryEntry = NULL;\r | |
1341 | DebugEntry = NULL;\r | |
1342 | } else {\r | |
1343 | //\r | |
1344 | // Get the DebugEntry offset in the raw data image.\r | |
1345 | //\r | |
1346 | for (Index1 = 0; Index1 < Index; Index1 ++) {\r | |
f7496d71 | 1347 | if ((DirectoryEntry->VirtualAddress >= SectionHeader[Index1].VirtualAddress) &&\r |
fd171542 | 1348 | (DirectoryEntry->VirtualAddress < (SectionHeader[Index1].VirtualAddress + SectionHeader[Index1].Misc.VirtualSize))) {\r |
30fdf114 | 1349 | DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) (\r |
f7496d71 LG |
1350 | (UINTN) Pe32Data +\r |
1351 | DirectoryEntry->VirtualAddress -\r | |
1352 | SectionHeader[Index1].VirtualAddress +\r | |
30fdf114 LG |
1353 | SectionHeader[Index1].PointerToRawData);\r |
1354 | break;\r | |
1355 | }\r | |
1356 | }\r | |
1357 | }\r | |
1358 | } else {\r | |
1359 | return NULL;\r | |
1360 | }\r | |
1361 | \r | |
1362 | if (NULL == DebugEntry || NULL == DirectoryEntry) {\r | |
1363 | return NULL;\r | |
1364 | }\r | |
1365 | \r | |
1366 | //\r | |
1367 | // Scan the directory to find the debug entry.\r | |
f7496d71 | 1368 | //\r |
30fdf114 LG |
1369 | for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY), DebugEntry++) {\r |
1370 | if (EFI_IMAGE_DEBUG_TYPE_CODEVIEW == DebugEntry->Type) {\r | |
1371 | if (DebugEntry->SizeOfData > 0) {\r | |
fd171542 | 1372 | //\r |
1373 | // Get the DebugEntry offset in the raw data image.\r | |
1374 | //\r | |
1375 | CodeViewEntryPointer = NULL;\r | |
1376 | for (Index1 = 0; Index1 < Index; Index1 ++) {\r | |
f7496d71 | 1377 | if ((DebugEntry->RVA >= SectionHeader[Index1].VirtualAddress) &&\r |
fd171542 | 1378 | (DebugEntry->RVA < (SectionHeader[Index1].VirtualAddress + SectionHeader[Index1].Misc.VirtualSize))) {\r |
1379 | CodeViewEntryPointer = (VOID *) (\r | |
f7496d71 LG |
1380 | ((UINTN)Pe32Data) +\r |
1381 | (UINTN) DebugEntry->RVA -\r | |
1382 | SectionHeader[Index1].VirtualAddress +\r | |
1383 | SectionHeader[Index1].PointerToRawData +\r | |
fd171542 | 1384 | (UINTN)TEImageAdjust);\r |
1385 | break;\r | |
1386 | }\r | |
1387 | }\r | |
1388 | if (Index1 >= Index) {\r | |
1389 | //\r | |
1390 | // Can't find CodeViewEntryPointer in raw PE/COFF image.\r | |
1391 | //\r | |
1392 | continue;\r | |
1393 | }\r | |
30fdf114 LG |
1394 | switch (* (UINT32 *) CodeViewEntryPointer) {\r |
1395 | case CODEVIEW_SIGNATURE_NB10:\r | |
1396 | return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY));\r | |
1397 | case CODEVIEW_SIGNATURE_RSDS:\r | |
1398 | return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY));\r | |
a709adfa LG |
1399 | case CODEVIEW_SIGNATURE_MTOC:\r |
1400 | return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY));\r | |
30fdf114 LG |
1401 | default:\r |
1402 | break;\r | |
1403 | }\r | |
1404 | }\r | |
1405 | }\r | |
1406 | }\r | |
1407 | \r | |
1408 | return NULL;\r | |
1409 | }\r | |
a709adfa LG |
1410 | \r |
1411 | \r | |
1412 | RETURN_STATUS\r | |
1413 | EFIAPI\r | |
1414 | PeCoffLoaderGetEntryPoint (\r | |
1415 | IN VOID *Pe32Data,\r | |
1416 | OUT VOID **EntryPoint,\r | |
1417 | OUT VOID **BaseOfImage\r | |
1418 | )\r | |
1419 | {\r | |
1420 | EFI_IMAGE_DOS_HEADER *DosHdr;\r | |
1421 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
1422 | \r | |
1423 | DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r | |
1424 | if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r | |
1425 | //\r | |
1426 | // DOS image header is present, so read the PE header after the DOS image header.\r | |
1427 | //\r | |
1428 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));\r | |
1429 | } else {\r | |
1430 | //\r | |
1431 | // DOS image header is not present, so PE header is at the image base.\r | |
1432 | //\r | |
1433 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r | |
1434 | }\r | |
1435 | \r | |
1436 | //\r | |
1437 | // Calculate the entry point relative to the start of the image.\r | |
1438 | // AddressOfEntryPoint is common for PE32 & PE32+\r | |
1439 | //\r | |
1440 | if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r | |
1441 | *BaseOfImage = (VOID *)(UINTN)(Hdr.Te->ImageBase + Hdr.Te->StrippedSize - sizeof (EFI_TE_IMAGE_HEADER));\r | |
1442 | *EntryPoint = (VOID *)((UINTN)*BaseOfImage + (Hdr.Te->AddressOfEntryPoint & 0x0ffffffff) + sizeof(EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize);\r | |
1443 | return RETURN_SUCCESS;\r | |
1444 | } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r | |
1445 | *EntryPoint = (VOID *)(UINTN)Hdr.Pe32->OptionalHeader.AddressOfEntryPoint;\r | |
1446 | if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
1447 | *BaseOfImage = (VOID *)(UINTN)Hdr.Pe32->OptionalHeader.ImageBase;\r | |
1448 | } else {\r | |
1449 | *BaseOfImage = (VOID *)(UINTN)Hdr.Pe32Plus->OptionalHeader.ImageBase;\r | |
1450 | }\r | |
1451 | *EntryPoint = (VOID *)(UINTN)((UINTN)*EntryPoint + (UINTN)*BaseOfImage);\r | |
1452 | return RETURN_SUCCESS;\r | |
1453 | }\r | |
1454 | \r | |
1455 | return RETURN_UNSUPPORTED;\r | |
1456 | }\r |