878ddf1f |
1 | /** @file\r |
2 | Tiano PE/COFF loader.\r |
3 | \r |
2ce31132 |
4 | This PE/COFF loader supports loading any PE32 or PE32+ image type, but\r |
5 | only supports relocating IA32, X64, IPF, and EBC images.\r |
6 | \r |
878ddf1f |
7 | Copyright (c) 2006, Intel Corporation\r |
8 | All rights reserved. This program and the accompanying materials\r |
9 | are licensed and made available under the terms and conditions of the BSD License\r |
10 | which accompanies this distribution. The full text of the license may be found at\r |
11 | http://opensource.org/licenses/bsd-license.php\r |
12 | \r |
13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
15 | \r |
16 | Module Name: PeCoffLoader.c\r |
17 | \r |
18 | **/\r |
19 | \r |
2ce31132 |
20 | \r |
4ba61e5e |
21 | /**\r |
2ce31132 |
22 | Performs an Itanium-based specific relocation fixup and is a no-op on other\r |
23 | instruction sets.\r |
878ddf1f |
24 | \r |
4ba61e5e |
25 | @param Reloc Pointer to the relocation record.\r |
26 | @param Fixup Pointer to the address to fix up.\r |
27 | @param FixupData Pointer to a buffer to log the fixups.\r |
28 | @param Adjust The offset to adjust the fixup.\r |
878ddf1f |
29 | \r |
4ba61e5e |
30 | @return Status code.\r |
878ddf1f |
31 | \r |
4ba61e5e |
32 | **/\r |
878ddf1f |
33 | RETURN_STATUS\r |
34 | PeCoffLoaderRelocateImageEx (\r |
35 | IN UINT16 *Reloc,\r |
36 | IN OUT CHAR8 *Fixup,\r |
37 | IN OUT CHAR8 **FixupData,\r |
38 | IN UINT64 Adjust\r |
39 | );\r |
40 | \r |
41 | \r |
2ce31132 |
42 | /**\r |
43 | Performs an Itanium-based specific re-relocation fixup and is a no-op on other\r |
44 | instruction sets. This is used to re-relocated the image into the EFI virtual\r |
45 | space for runtime calls.\r |
46 | \r |
47 | @param Reloc Pointer to the relocation record.\r |
48 | @param Fixup Pointer to the address to fix up.\r |
49 | @param FixupData Pointer to a buffer to log the fixups.\r |
50 | @param Adjust The offset to adjust the fixup.\r |
51 | \r |
52 | @return Status code.\r |
53 | \r |
54 | **/\r |
55 | RETURN_STATUS\r |
56 | PeHotRelocateImageEx (\r |
57 | IN UINT16 *Reloc,\r |
58 | IN OUT CHAR8 *Fixup,\r |
59 | IN OUT CHAR8 **FixupData,\r |
60 | IN UINT64 Adjust\r |
61 | );\r |
62 | \r |
63 | \r |
64 | /**\r |
9c7790d2 |
65 | Returns TRUE if the machine type of PE/COFF image is supported. Supported\r |
2ce31132 |
66 | does not mean the image can be executed it means the PE/COFF loader supports\r |
67 | loading and relocating of the image type. It's up to the caller to support\r |
9c7790d2 |
68 | the entry point.\r |
2ce31132 |
69 | \r |
70 | @param Machine Machine type from the PE Header.\r |
71 | \r |
72 | @return TRUE if this PE/COFF loader can load the image\r |
73 | \r |
74 | **/\r |
75 | BOOLEAN\r |
76 | PeCoffLoaderImageFormatSupported (\r |
77 | IN UINT16 Machine\r |
78 | );\r |
79 | \r |
80 | \r |
513b53b1 |
81 | /**\r |
82 | Retrieves the magic value from the PE/COFF header.\r |
83 | \r |
84 | @param Hdr The buffer in which to return the PE32, PE32+, or TE header.\r |
85 | \r |
86 | @return EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC - Image is PE32\r |
87 | @return EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC - Image is PE32+\r |
88 | \r |
89 | **/\r |
90 | UINT16\r |
91 | PeCoffLoaderGetPeHeaderMagicValue (\r |
92 | IN EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr\r |
93 | )\r |
94 | {\r |
95 | //\r |
96 | // NOTE: Some versions of Linux ELILO for Itanium have an incorrect magic value \r |
97 | // in the PE/COFF Header. If the MachineType is Itanium(IA64) and the \r |
98 | // Magic value in the OptionalHeader is EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC\r |
99 | // then override the returned value to EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC\r |
100 | //\r |
101 | if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA64 && Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r |
102 | return EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r |
103 | }\r |
104 | //\r |
105 | // Return the magic value from the PC/COFF Optional Header\r |
106 | //\r |
107 | return Hdr.Pe32->OptionalHeader.Magic;\r |
108 | }\r |
109 | \r |
878ddf1f |
110 | \r |
111 | /**\r |
112 | Retrieves the PE or TE Header from a PE/COFF or TE image.\r |
113 | \r |
cd14fe3d |
114 | @param ImageContext The context of the image being loaded.\r |
2ce31132 |
115 | @param Hdr The buffer in which to return the PE32, PE32+, or TE header.\r |
878ddf1f |
116 | \r |
cd14fe3d |
117 | @retval RETURN_SUCCESS The PE or TE Header is read.\r |
118 | @retval Other The error status from reading the PE/COFF or TE image using the ImageRead function.\r |
878ddf1f |
119 | \r |
120 | **/\r |
878ddf1f |
121 | RETURN_STATUS\r |
122 | PeCoffLoaderGetPeHeader (\r |
2ce31132 |
123 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r |
124 | OUT EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr\r |
878ddf1f |
125 | )\r |
126 | {\r |
cd14fe3d |
127 | RETURN_STATUS Status;\r |
878ddf1f |
128 | EFI_IMAGE_DOS_HEADER DosHdr;\r |
129 | UINTN Size;\r |
513b53b1 |
130 | UINT16 Magic;\r |
878ddf1f |
131 | \r |
878ddf1f |
132 | //\r |
2ce31132 |
133 | // Read the DOS image header to check for it's existance\r |
878ddf1f |
134 | //\r |
135 | Size = sizeof (EFI_IMAGE_DOS_HEADER);\r |
136 | Status = ImageContext->ImageRead (\r |
cd14fe3d |
137 | ImageContext->Handle,\r |
138 | 0,\r |
139 | &Size,\r |
140 | &DosHdr\r |
141 | );\r |
878ddf1f |
142 | if (RETURN_ERROR (Status)) {\r |
143 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r |
144 | return Status;\r |
145 | }\r |
146 | \r |
147 | ImageContext->PeCoffHeaderOffset = 0;\r |
148 | if (DosHdr.e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r |
149 | //\r |
9c7790d2 |
150 | // DOS image header is present, so read the PE header after the DOS image\r |
2ce31132 |
151 | // header\r |
878ddf1f |
152 | //\r |
153 | ImageContext->PeCoffHeaderOffset = DosHdr.e_lfanew;\r |
154 | }\r |
2ce31132 |
155 | \r |
878ddf1f |
156 | //\r |
9c7790d2 |
157 | // Read the PE/COFF Header. For PE32 (32-bit) this will read in too much\r |
2ce31132 |
158 | // data, but that should not hurt anythine. Hdr.Pe32->OptionalHeader.Magic\r |
9c7790d2 |
159 | // determins if this is a PE32 or PE32+ image. The magic is in the same\r |
2ce31132 |
160 | // location in both images.\r |
878ddf1f |
161 | //\r |
2ce31132 |
162 | Size = sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION);\r |
878ddf1f |
163 | Status = ImageContext->ImageRead (\r |
cd14fe3d |
164 | ImageContext->Handle,\r |
165 | ImageContext->PeCoffHeaderOffset,\r |
166 | &Size,\r |
2ce31132 |
167 | Hdr.Pe32\r |
cd14fe3d |
168 | );\r |
878ddf1f |
169 | if (RETURN_ERROR (Status)) {\r |
170 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r |
171 | return Status;\r |
172 | }\r |
2ce31132 |
173 | \r |
878ddf1f |
174 | //\r |
2ce31132 |
175 | // Use Signature to figure out if we understand the image format\r |
878ddf1f |
176 | //\r |
c941b270 |
177 | if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r |
2ce31132 |
178 | ImageContext->IsTeImage = TRUE;\r |
179 | ImageContext->Machine = Hdr.Te->Machine;\r |
180 | ImageContext->ImageType = (UINT16)(Hdr.Te->Subsystem);\r |
181 | ImageContext->ImageSize = 0;\r |
182 | ImageContext->SectionAlignment = 4096;\r |
183 | ImageContext->SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN)Hdr.Te->BaseOfCode - (UINTN)Hdr.Te->StrippedSize;\r |
878ddf1f |
184 | \r |
2ce31132 |
185 | } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r |
186 | ImageContext->IsTeImage = FALSE;\r |
187 | ImageContext->Machine = Hdr.Pe32->FileHeader.Machine;\r |
9c7790d2 |
188 | \r |
513b53b1 |
189 | Magic = PeCoffLoaderGetPeHeaderMagicValue (Hdr);\r |
190 | \r |
191 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r |
2ce31132 |
192 | //\r |
193 | // Use PE32 offset\r |
194 | //\r |
195 | ImageContext->ImageType = Hdr.Pe32->OptionalHeader.Subsystem;\r |
196 | ImageContext->ImageSize = (UINT64)Hdr.Pe32->OptionalHeader.SizeOfImage;\r |
197 | ImageContext->SectionAlignment = Hdr.Pe32->OptionalHeader.SectionAlignment;\r |
198 | ImageContext->SizeOfHeaders = Hdr.Pe32->OptionalHeader.SizeOfHeaders;\r |
878ddf1f |
199 | \r |
513b53b1 |
200 | } else if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {\r |
2ce31132 |
201 | //\r |
202 | // Use PE32+ offset\r |
203 | //\r |
204 | ImageContext->ImageType = Hdr.Pe32Plus->OptionalHeader.Subsystem;\r |
205 | ImageContext->ImageSize = (UINT64) Hdr.Pe32Plus->OptionalHeader.SizeOfImage;\r |
206 | ImageContext->SectionAlignment = Hdr.Pe32Plus->OptionalHeader.SectionAlignment;\r |
207 | ImageContext->SizeOfHeaders = Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders;\r |
208 | } else {\r |
209 | ImageContext->ImageError = IMAGE_ERROR_INVALID_MACHINE_TYPE;\r |
9c7790d2 |
210 | return RETURN_UNSUPPORTED;\r |
2ce31132 |
211 | }\r |
878ddf1f |
212 | } else {\r |
878ddf1f |
213 | ImageContext->ImageError = IMAGE_ERROR_INVALID_MACHINE_TYPE;\r |
214 | return RETURN_UNSUPPORTED;\r |
215 | }\r |
216 | \r |
2ce31132 |
217 | if (!PeCoffLoaderImageFormatSupported (ImageContext->Machine)) {\r |
218 | //\r |
219 | // If the PE/COFF loader does not support the image type return\r |
220 | // unsupported. This library can suport lots of types of images\r |
221 | // this does not mean the user of this library can call the entry\r |
9c7790d2 |
222 | // point of the image.\r |
2ce31132 |
223 | //\r |
224 | return RETURN_UNSUPPORTED;\r |
878ddf1f |
225 | }\r |
226 | \r |
878ddf1f |
227 | return RETURN_SUCCESS;\r |
228 | }\r |
229 | \r |
2ce31132 |
230 | \r |
878ddf1f |
231 | /**\r |
cd14fe3d |
232 | Retrieves information about a PE/COFF image.\r |
233 | \r |
234 | Computes the PeCoffHeaderOffset, ImageAddress, ImageSize, DestinationAddress, CodeView,\r |
235 | PdbPointer, RelocationsStripped, SectionAlignment, SizeOfHeaders, and DebugDirectoryEntryRva\r |
236 | fields of the ImageContext structure. If ImageContext is NULL, then return RETURN_INVALID_PARAMETER.\r |
237 | If the PE/COFF image accessed through the ImageRead service in the ImageContext structure is not\r |
238 | a supported PE/COFF image type, then return RETURN_UNSUPPORTED. If any errors occur while\r |
239 | computing the fields of ImageContext, then the error status is returned in the ImageError field of\r |
9c7790d2 |
240 | ImageContext.\r |
878ddf1f |
241 | \r |
cd14fe3d |
242 | @param ImageContext Pointer to the image context structure that describes the PE/COFF\r |
243 | image that needs to be examined by this function.\r |
878ddf1f |
244 | \r |
4ba61e5e |
245 | @retval RETURN_SUCCESS The information on the PE/COFF image was collected.\r |
246 | @retval RETURN_INVALID_PARAMETER ImageContext is NULL.\r |
247 | @retval RETURN_UNSUPPORTED The PE/COFF image is not supported.\r |
878ddf1f |
248 | \r |
249 | **/\r |
250 | RETURN_STATUS\r |
251 | EFIAPI\r |
252 | PeCoffLoaderGetImageInfo (\r |
253 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r |
254 | )\r |
255 | {\r |
2ce31132 |
256 | RETURN_STATUS Status;\r |
257 | EFI_IMAGE_OPTIONAL_HEADER_UNION HdrData;\r |
258 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r |
259 | EFI_IMAGE_DATA_DIRECTORY *DebugDirectoryEntry;\r |
260 | UINTN Size;\r |
261 | UINTN Index;\r |
262 | UINTN DebugDirectoryEntryRva;\r |
263 | UINTN DebugDirectoryEntryFileOffset;\r |
264 | UINTN SectionHeaderOffset;\r |
265 | EFI_IMAGE_SECTION_HEADER SectionHeader;\r |
266 | EFI_IMAGE_DEBUG_DIRECTORY_ENTRY DebugEntry;\r |
267 | UINT32 NumberOfRvaAndSizes;\r |
513b53b1 |
268 | UINT16 Magic;\r |
878ddf1f |
269 | \r |
270 | if (NULL == ImageContext) {\r |
271 | return RETURN_INVALID_PARAMETER;\r |
272 | }\r |
273 | //\r |
274 | // Assume success\r |
275 | //\r |
276 | ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r |
277 | \r |
2ce31132 |
278 | Hdr.Union = &HdrData;\r |
279 | Status = PeCoffLoaderGetPeHeader (ImageContext, Hdr);\r |
878ddf1f |
280 | if (RETURN_ERROR (Status)) {\r |
281 | return Status;\r |
282 | }\r |
2ce31132 |
283 | \r |
513b53b1 |
284 | Magic = PeCoffLoaderGetPeHeaderMagicValue (Hdr);\r |
285 | \r |
878ddf1f |
286 | //\r |
287 | // Retrieve the base address of the image\r |
288 | //\r |
289 | if (!(ImageContext->IsTeImage)) {\r |
513b53b1 |
290 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r |
2ce31132 |
291 | //\r |
292 | // Use PE32 offset\r |
293 | //\r |
294 | ImageContext->ImageAddress = Hdr.Pe32->OptionalHeader.ImageBase;\r |
295 | } else {\r |
296 | //\r |
297 | // Use PE32+ offset\r |
298 | //\r |
299 | ImageContext->ImageAddress = Hdr.Pe32Plus->OptionalHeader.ImageBase;\r |
300 | }\r |
878ddf1f |
301 | } else {\r |
2ce31132 |
302 | ImageContext->ImageAddress = (PHYSICAL_ADDRESS)(Hdr.Te->ImageBase);\r |
878ddf1f |
303 | }\r |
2ce31132 |
304 | \r |
878ddf1f |
305 | //\r |
306 | // Initialize the alternate destination address to 0 indicating that it\r |
307 | // should not be used.\r |
308 | //\r |
309 | ImageContext->DestinationAddress = 0;\r |
310 | \r |
311 | //\r |
312 | // Initialize the codeview pointer.\r |
313 | //\r |
314 | ImageContext->CodeView = NULL;\r |
315 | ImageContext->PdbPointer = NULL;\r |
316 | \r |
317 | //\r |
318 | // Three cases with regards to relocations:\r |
319 | // - Image has base relocs, RELOCS_STRIPPED==0 => image is relocatable\r |
320 | // - Image has no base relocs, RELOCS_STRIPPED==1 => Image is not relocatable\r |
321 | // - Image has no base relocs, RELOCS_STRIPPED==0 => Image is relocatable but\r |
322 | // has no base relocs to apply\r |
323 | // Obviously having base relocations with RELOCS_STRIPPED==1 is invalid.\r |
324 | //\r |
325 | // Look at the file header to determine if relocations have been stripped, and\r |
326 | // save this info in the image context for later use.\r |
327 | //\r |
2ce31132 |
328 | if ((!(ImageContext->IsTeImage)) && ((Hdr.Pe32->FileHeader.Characteristics & EFI_IMAGE_FILE_RELOCS_STRIPPED) != 0)) {\r |
878ddf1f |
329 | ImageContext->RelocationsStripped = TRUE;\r |
330 | } else {\r |
331 | ImageContext->RelocationsStripped = FALSE;\r |
332 | }\r |
333 | \r |
334 | if (!(ImageContext->IsTeImage)) {\r |
513b53b1 |
335 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r |
9c7790d2 |
336 | //\r |
2ce31132 |
337 | // Use PE32 offset\r |
338 | //\r |
339 | NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r |
340 | DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r |
341 | } else {\r |
9c7790d2 |
342 | //\r |
2ce31132 |
343 | // Use PE32+ offset\r |
344 | //\r |
345 | NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r |
346 | DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r |
9c7790d2 |
347 | }\r |
348 | \r |
2ce31132 |
349 | if (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {\r |
878ddf1f |
350 | \r |
351 | DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r |
352 | \r |
353 | //\r |
354 | // Determine the file offset of the debug directory... This means we walk\r |
355 | // the sections to find which section contains the RVA of the debug\r |
356 | // directory\r |
357 | //\r |
358 | DebugDirectoryEntryFileOffset = 0;\r |
359 | \r |
360 | SectionHeaderOffset = (UINTN)(\r |
361 | ImageContext->PeCoffHeaderOffset +\r |
9c7790d2 |
362 | sizeof (UINT32) +\r |
363 | sizeof (EFI_IMAGE_FILE_HEADER) +\r |
2ce31132 |
364 | Hdr.Pe32->FileHeader.SizeOfOptionalHeader\r |
878ddf1f |
365 | );\r |
366 | \r |
2ce31132 |
367 | for (Index = 0; Index < Hdr.Pe32->FileHeader.NumberOfSections; Index++) {\r |
878ddf1f |
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 |
2ce31132 |
385 | \r |
386 | DebugDirectoryEntryFileOffset = DebugDirectoryEntryRva - SectionHeader.VirtualAddress + SectionHeader.PointerToRawData;\r |
878ddf1f |
387 | break;\r |
388 | }\r |
389 | \r |
390 | SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r |
391 | }\r |
392 | \r |
393 | if (DebugDirectoryEntryFileOffset != 0) {\r |
f92b6f19 |
394 | for (Index = 0; Index < DebugDirectoryEntry->Size; Index += Size) {\r |
878ddf1f |
395 | //\r |
396 | // Read next debug directory entry\r |
397 | //\r |
398 | Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r |
399 | Status = ImageContext->ImageRead (\r |
400 | ImageContext->Handle,\r |
401 | DebugDirectoryEntryFileOffset,\r |
402 | &Size,\r |
403 | &DebugEntry\r |
404 | );\r |
405 | if (RETURN_ERROR (Status)) {\r |
406 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r |
407 | return Status;\r |
408 | }\r |
878ddf1f |
409 | if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r |
f92b6f19 |
410 | ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index);\r |
878ddf1f |
411 | if (DebugEntry.RVA == 0 && DebugEntry.FileOffset != 0) {\r |
412 | ImageContext->ImageSize += DebugEntry.SizeOfData;\r |
413 | }\r |
414 | \r |
415 | return RETURN_SUCCESS;\r |
416 | }\r |
417 | }\r |
418 | }\r |
419 | }\r |
420 | } else {\r |
878ddf1f |
421 | \r |
2ce31132 |
422 | DebugDirectoryEntry = &Hdr.Te->DataDirectory[1];\r |
878ddf1f |
423 | DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r |
2ce31132 |
424 | SectionHeaderOffset = (UINTN)(sizeof (EFI_TE_IMAGE_HEADER));\r |
878ddf1f |
425 | \r |
426 | DebugDirectoryEntryFileOffset = 0;\r |
427 | \r |
2ce31132 |
428 | for (Index = 0; Index < Hdr.Te->NumberOfSections;) {\r |
878ddf1f |
429 | //\r |
430 | // Read section header from file\r |
431 | //\r |
cd14fe3d |
432 | Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r |
878ddf1f |
433 | Status = ImageContext->ImageRead (\r |
434 | ImageContext->Handle,\r |
435 | SectionHeaderOffset,\r |
436 | &Size,\r |
437 | &SectionHeader\r |
438 | );\r |
439 | if (RETURN_ERROR (Status)) {\r |
440 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r |
441 | return Status;\r |
442 | }\r |
443 | \r |
444 | if (DebugDirectoryEntryRva >= SectionHeader.VirtualAddress &&\r |
445 | DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) {\r |
446 | DebugDirectoryEntryFileOffset = DebugDirectoryEntryRva -\r |
cd14fe3d |
447 | SectionHeader.VirtualAddress +\r |
448 | SectionHeader.PointerToRawData +\r |
449 | sizeof (EFI_TE_IMAGE_HEADER) -\r |
2ce31132 |
450 | Hdr.Te->StrippedSize;\r |
878ddf1f |
451 | \r |
452 | //\r |
453 | // File offset of the debug directory was found, if this is not the last\r |
454 | // section, then skip to the last section for calculating the image size.\r |
455 | //\r |
2ce31132 |
456 | if (Index < (UINTN) Hdr.Te->NumberOfSections - 1) {\r |
457 | SectionHeaderOffset += (Hdr.Te->NumberOfSections - 1 - Index) * sizeof (EFI_IMAGE_SECTION_HEADER);\r |
458 | Index = Hdr.Te->NumberOfSections - 1;\r |
878ddf1f |
459 | continue;\r |
460 | }\r |
461 | }\r |
462 | \r |
463 | //\r |
464 | // In Te image header there is not a field to describe the ImageSize.\r |
9c7790d2 |
465 | // Actually, the ImageSize equals the RVA plus the VirtualSize of\r |
466 | // the last section mapped into memory (Must be rounded up to\r |
878ddf1f |
467 | // a mulitple of Section Alignment). Per the PE/COFF specification, the\r |
468 | // section headers in the Section Table must appear in order of the RVA\r |
469 | // values for the corresponding sections. So the ImageSize can be determined\r |
470 | // by the RVA and the VirtualSize of the last section header in the\r |
471 | // Section Table.\r |
472 | //\r |
2ce31132 |
473 | if ((++Index) == (UINTN)Hdr.Te->NumberOfSections) {\r |
878ddf1f |
474 | ImageContext->ImageSize = (SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize +\r |
475 | ImageContext->SectionAlignment - 1) & ~(ImageContext->SectionAlignment - 1);\r |
476 | }\r |
477 | \r |
478 | SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r |
479 | }\r |
480 | \r |
481 | if (DebugDirectoryEntryFileOffset != 0) {\r |
f92b6f19 |
482 | for (Index = 0; Index < DebugDirectoryEntry->Size; Index += Size) {\r |
878ddf1f |
483 | //\r |
484 | // Read next debug directory entry\r |
485 | //\r |
486 | Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r |
487 | Status = ImageContext->ImageRead (\r |
488 | ImageContext->Handle,\r |
489 | DebugDirectoryEntryFileOffset,\r |
490 | &Size,\r |
491 | &DebugEntry\r |
492 | );\r |
493 | if (RETURN_ERROR (Status)) {\r |
494 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r |
495 | return Status;\r |
496 | }\r |
497 | \r |
498 | if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r |
f92b6f19 |
499 | ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index);\r |
878ddf1f |
500 | return RETURN_SUCCESS;\r |
501 | }\r |
502 | }\r |
503 | }\r |
504 | }\r |
505 | \r |
506 | return RETURN_SUCCESS;\r |
507 | }\r |
508 | \r |
2ce31132 |
509 | \r |
878ddf1f |
510 | /**\r |
511 | Converts an image address to the loaded address.\r |
512 | \r |
cd14fe3d |
513 | @param ImageContext The context of the image being loaded.\r |
514 | @param Address The address to be converted to the loaded address.\r |
878ddf1f |
515 | \r |
cd14fe3d |
516 | @return The converted address or NULL if the address can not be converted.\r |
878ddf1f |
517 | \r |
518 | **/\r |
878ddf1f |
519 | VOID *\r |
520 | PeCoffLoaderImageAddress (\r |
521 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r |
522 | IN UINTN Address\r |
523 | )\r |
524 | {\r |
236877a6 |
525 | //\r |
9c7790d2 |
526 | // @bug Check to make sure ImageSize is correct for the relocated image.\r |
236877a6 |
527 | // it may only work for the file we start with and not the relocated image\r |
528 | //\r |
529 | if (Address >= ImageContext->ImageSize) {\r |
530 | ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r |
531 | return NULL;\r |
532 | }\r |
533 | \r |
2ce31132 |
534 | return (CHAR8 *)((UINTN) ImageContext->ImageAddress + Address);\r |
878ddf1f |
535 | }\r |
536 | \r |
537 | /**\r |
cd14fe3d |
538 | Applies relocation fixups to a PE/COFF image that was loaded with PeCoffLoaderLoadImage().\r |
878ddf1f |
539 | \r |
cd14fe3d |
540 | If the DestinationAddress field of ImageContext is 0, then use the ImageAddress field of\r |
541 | ImageContext as the relocation base address. Otherwise, use the DestinationAddress field\r |
542 | of ImageContext as the relocation base address. The caller must allocate the relocation\r |
9c7790d2 |
543 | fixup log buffer and fill in the FixupData field of ImageContext prior to calling this function.\r |
cd14fe3d |
544 | If ImageContext is NULL, then ASSERT().\r |
545 | \r |
546 | @param ImageContext Pointer to the image context structure that describes the PE/COFF\r |
547 | image that is being relocated.\r |
878ddf1f |
548 | \r |
cd14fe3d |
549 | @retval RETURN_SUCCESS The PE/COFF image was relocated.\r |
550 | Extended status information is in the ImageError field of ImageContext.\r |
551 | @retval RETURN_LOAD_ERROR The image in not a valid PE/COFF image.\r |
552 | Extended status information is in the ImageError field of ImageContext.\r |
553 | @retval RETURN_UNSUPPORTED A relocation record type is not supported.\r |
554 | Extended status information is in the ImageError field of ImageContext.\r |
878ddf1f |
555 | \r |
556 | **/\r |
557 | RETURN_STATUS\r |
558 | EFIAPI\r |
559 | PeCoffLoaderRelocateImage (\r |
560 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r |
561 | )\r |
562 | {\r |
2ce31132 |
563 | RETURN_STATUS Status;\r |
564 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r |
565 | EFI_IMAGE_DATA_DIRECTORY *RelocDir;\r |
566 | UINT64 Adjust;\r |
567 | EFI_IMAGE_BASE_RELOCATION *RelocBase;\r |
568 | EFI_IMAGE_BASE_RELOCATION *RelocBaseEnd;\r |
569 | UINT16 *Reloc;\r |
570 | UINT16 *RelocEnd;\r |
571 | CHAR8 *Fixup;\r |
572 | CHAR8 *FixupBase;\r |
573 | UINT16 *F16;\r |
9c7790d2 |
574 | UINT32 *F32;\r |
2ce31132 |
575 | UINT64 *F64;\r |
576 | CHAR8 *FixupData;\r |
577 | PHYSICAL_ADDRESS BaseAddress;\r |
578 | UINT32 NumberOfRvaAndSizes;\r |
513b53b1 |
579 | UINT16 Magic;\r |
878ddf1f |
580 | \r |
cd14fe3d |
581 | ASSERT (ImageContext != NULL);\r |
582 | \r |
878ddf1f |
583 | //\r |
584 | // Assume success\r |
585 | //\r |
586 | ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r |
587 | \r |
588 | //\r |
589 | // If there are no relocation entries, then we are done\r |
590 | //\r |
591 | if (ImageContext->RelocationsStripped) {\r |
592 | return RETURN_SUCCESS;\r |
593 | }\r |
594 | \r |
595 | //\r |
596 | // If the destination address is not 0, use that rather than the\r |
597 | // image address as the relocation target.\r |
598 | //\r |
cd14fe3d |
599 | if (ImageContext->DestinationAddress != 0) {\r |
878ddf1f |
600 | BaseAddress = ImageContext->DestinationAddress;\r |
601 | } else {\r |
602 | BaseAddress = ImageContext->ImageAddress;\r |
603 | }\r |
604 | \r |
605 | if (!(ImageContext->IsTeImage)) {\r |
2ce31132 |
606 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);\r |
513b53b1 |
607 | \r |
608 | Magic = PeCoffLoaderGetPeHeaderMagicValue (Hdr);\r |
609 | \r |
610 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r |
2ce31132 |
611 | //\r |
612 | // Use PE32 offset\r |
613 | //\r |
614 | Adjust = (UINT64)BaseAddress - Hdr.Pe32->OptionalHeader.ImageBase;\r |
615 | Hdr.Pe32->OptionalHeader.ImageBase = (UINT32)BaseAddress;\r |
9c7790d2 |
616 | \r |
2ce31132 |
617 | NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r |
618 | RelocDir = &Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r |
619 | } else {\r |
620 | //\r |
621 | // Use PE32+ offset\r |
622 | //\r |
623 | Adjust = (UINT64) BaseAddress - Hdr.Pe32Plus->OptionalHeader.ImageBase;\r |
624 | Hdr.Pe32Plus->OptionalHeader.ImageBase = (UINT64)BaseAddress;\r |
625 | \r |
626 | NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r |
627 | RelocDir = &Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r |
628 | }\r |
878ddf1f |
629 | \r |
630 | //\r |
631 | // Find the relocation block\r |
878ddf1f |
632 | // Per the PE/COFF spec, you can't assume that a given data directory\r |
633 | // is present in the image. You have to check the NumberOfRvaAndSizes in\r |
634 | // the optional header to verify a desired directory entry is there.\r |
635 | //\r |
2ce31132 |
636 | \r |
637 | if (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r |
878ddf1f |
638 | RelocBase = PeCoffLoaderImageAddress (ImageContext, RelocDir->VirtualAddress);\r |
639 | RelocBaseEnd = PeCoffLoaderImageAddress (\r |
640 | ImageContext,\r |
641 | RelocDir->VirtualAddress + RelocDir->Size - 1\r |
642 | );\r |
643 | } else {\r |
644 | //\r |
645 | // Set base and end to bypass processing below.\r |
646 | //\r |
647 | RelocBase = RelocBaseEnd = 0;\r |
648 | }\r |
649 | } else {\r |
2ce31132 |
650 | Hdr.Te = (EFI_TE_IMAGE_HEADER *)(UINTN)(ImageContext->ImageAddress);\r |
317f832e |
651 | Adjust = (UINT64) (BaseAddress - Hdr.Te->ImageBase);\r |
2ce31132 |
652 | Hdr.Te->ImageBase = (UINT64) (BaseAddress);\r |
878ddf1f |
653 | \r |
654 | //\r |
655 | // Find the relocation block\r |
656 | //\r |
2ce31132 |
657 | RelocDir = &Hdr.Te->DataDirectory[0];\r |
878ddf1f |
658 | RelocBase = (EFI_IMAGE_BASE_RELOCATION *)(UINTN)(\r |
9c7790d2 |
659 | ImageContext->ImageAddress +\r |
24e25d11 |
660 | RelocDir->VirtualAddress +\r |
9c7790d2 |
661 | sizeof(EFI_TE_IMAGE_HEADER) -\r |
2ce31132 |
662 | Hdr.Te->StrippedSize\r |
24e25d11 |
663 | );\r |
878ddf1f |
664 | RelocBaseEnd = (EFI_IMAGE_BASE_RELOCATION *) ((UINTN) RelocBase + (UINTN) RelocDir->Size - 1);\r |
665 | }\r |
9c7790d2 |
666 | \r |
878ddf1f |
667 | //\r |
668 | // Run the relocation information and apply the fixups\r |
669 | //\r |
670 | FixupData = ImageContext->FixupData;\r |
671 | while (RelocBase < RelocBaseEnd) {\r |
672 | \r |
673 | Reloc = (UINT16 *) ((CHAR8 *) RelocBase + sizeof (EFI_IMAGE_BASE_RELOCATION));\r |
674 | RelocEnd = (UINT16 *) ((CHAR8 *) RelocBase + RelocBase->SizeOfBlock);\r |
675 | if (!(ImageContext->IsTeImage)) {\r |
676 | FixupBase = PeCoffLoaderImageAddress (ImageContext, RelocBase->VirtualAddress);\r |
677 | } else {\r |
678 | FixupBase = (CHAR8 *)(UINTN)(ImageContext->ImageAddress +\r |
24e25d11 |
679 | RelocBase->VirtualAddress +\r |
9c7790d2 |
680 | sizeof(EFI_TE_IMAGE_HEADER) -\r |
2ce31132 |
681 | Hdr.Te->StrippedSize\r |
24e25d11 |
682 | );\r |
878ddf1f |
683 | }\r |
684 | \r |
685 | if ((CHAR8 *) RelocEnd < (CHAR8 *) ((UINTN) ImageContext->ImageAddress) ||\r |
9c7790d2 |
686 | (CHAR8 *) RelocEnd > (CHAR8 *)((UINTN)ImageContext->ImageAddress +\r |
878ddf1f |
687 | (UINTN)ImageContext->ImageSize)) {\r |
688 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r |
689 | return RETURN_LOAD_ERROR;\r |
690 | }\r |
691 | \r |
692 | //\r |
693 | // Run this relocation record\r |
694 | //\r |
695 | while (Reloc < RelocEnd) {\r |
696 | \r |
697 | Fixup = FixupBase + (*Reloc & 0xFFF);\r |
698 | switch ((*Reloc) >> 12) {\r |
699 | case EFI_IMAGE_REL_BASED_ABSOLUTE:\r |
700 | break;\r |
701 | \r |
702 | case EFI_IMAGE_REL_BASED_HIGH:\r |
703 | F16 = (UINT16 *) Fixup;\r |
9c7790d2 |
704 | *F16 = (UINT16) (*F16 + ((UINT16) ((UINT32) Adjust >> 16)));\r |
878ddf1f |
705 | if (FixupData != NULL) {\r |
706 | *(UINT16 *) FixupData = *F16;\r |
707 | FixupData = FixupData + sizeof (UINT16);\r |
708 | }\r |
709 | break;\r |
710 | \r |
711 | case EFI_IMAGE_REL_BASED_LOW:\r |
712 | F16 = (UINT16 *) Fixup;\r |
713 | *F16 = (UINT16) (*F16 + (UINT16) Adjust);\r |
714 | if (FixupData != NULL) {\r |
715 | *(UINT16 *) FixupData = *F16;\r |
716 | FixupData = FixupData + sizeof (UINT16);\r |
717 | }\r |
718 | break;\r |
719 | \r |
720 | case EFI_IMAGE_REL_BASED_HIGHLOW:\r |
721 | F32 = (UINT32 *) Fixup;\r |
722 | *F32 = *F32 + (UINT32) Adjust;\r |
723 | if (FixupData != NULL) {\r |
724 | FixupData = ALIGN_POINTER (FixupData, sizeof (UINT32));\r |
2ce31132 |
725 | *(UINT32 *)FixupData = *F32;\r |
878ddf1f |
726 | FixupData = FixupData + sizeof (UINT32);\r |
727 | }\r |
728 | break;\r |
729 | \r |
2ce31132 |
730 | case EFI_IMAGE_REL_BASED_DIR64:\r |
731 | F64 = (UINT64 *) Fixup;\r |
732 | *F64 = *F64 + (UINT64) Adjust;\r |
733 | if (FixupData != NULL) {\r |
734 | FixupData = ALIGN_POINTER (FixupData, sizeof(UINT64));\r |
735 | *(UINT64 *)(FixupData) = *F64;\r |
736 | FixupData = FixupData + sizeof(UINT64);\r |
737 | }\r |
738 | break;\r |
878ddf1f |
739 | \r |
740 | default:\r |
2ce31132 |
741 | //\r |
742 | // The common code does not handle some of the stranger IPF relocations\r |
743 | // PeCoffLoaderRelocateImageEx () addes support for these complex fixups\r |
744 | // on IPF and is a No-Op on other archtiectures.\r |
745 | //\r |
878ddf1f |
746 | Status = PeCoffLoaderRelocateImageEx (Reloc, Fixup, &FixupData, Adjust);\r |
747 | if (RETURN_ERROR (Status)) {\r |
748 | ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r |
749 | return Status;\r |
750 | }\r |
751 | }\r |
752 | \r |
753 | //\r |
754 | // Next relocation record\r |
755 | //\r |
756 | Reloc += 1;\r |
757 | }\r |
758 | \r |
759 | //\r |
760 | // Next reloc block\r |
761 | //\r |
762 | RelocBase = (EFI_IMAGE_BASE_RELOCATION *) RelocEnd;\r |
763 | }\r |
764 | \r |
765 | return RETURN_SUCCESS;\r |
766 | }\r |
767 | \r |
768 | /**\r |
769 | Loads a PE/COFF image into memory.\r |
770 | \r |
cd14fe3d |
771 | Loads the PE/COFF image accessed through the ImageRead service of ImageContext into the buffer\r |
772 | specified by the ImageAddress and ImageSize fields of ImageContext. The caller must allocate\r |
773 | the load buffer and fill in the ImageAddress and ImageSize fields prior to calling this function.\r |
774 | The EntryPoint, FixupDataSize, CodeView, and PdbPointer fields of ImageContext are computed.\r |
4ba61e5e |
775 | If ImageContext is NULL, then ASSERT().\r |
cd14fe3d |
776 | \r |
777 | @param ImageContext Pointer to the image context structure that describes the PE/COFF\r |
778 | image that is being loaded.\r |
878ddf1f |
779 | \r |
cd14fe3d |
780 | @retval RETURN_SUCCESS The PE/COFF image was loaded into the buffer specified by\r |
781 | the ImageAddress and ImageSize fields of ImageContext.\r |
782 | Extended status information is in the ImageError field of ImageContext.\r |
783 | @retval RETURN_BUFFER_TOO_SMALL The caller did not provide a large enough buffer.\r |
784 | Extended status information is in the ImageError field of ImageContext.\r |
785 | @retval RETURN_LOAD_ERROR The PE/COFF image is an EFI Runtime image with no relocations.\r |
786 | Extended status information is in the ImageError field of ImageContext.\r |
787 | @retval RETURN_INVALID_PARAMETER The image address is invalid.\r |
788 | Extended status information is in the ImageError field of ImageContext.\r |
878ddf1f |
789 | \r |
790 | **/\r |
791 | RETURN_STATUS\r |
792 | EFIAPI\r |
793 | PeCoffLoaderLoadImage (\r |
794 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r |
795 | )\r |
796 | {\r |
cd14fe3d |
797 | RETURN_STATUS Status;\r |
2ce31132 |
798 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r |
cd14fe3d |
799 | PE_COFF_LOADER_IMAGE_CONTEXT CheckContext;\r |
878ddf1f |
800 | EFI_IMAGE_SECTION_HEADER *FirstSection;\r |
801 | EFI_IMAGE_SECTION_HEADER *Section;\r |
802 | UINTN NumberOfSections;\r |
803 | UINTN Index;\r |
804 | CHAR8 *Base;\r |
805 | CHAR8 *End;\r |
806 | CHAR8 *MaxEnd;\r |
807 | EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;\r |
808 | EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;\r |
809 | UINTN Size;\r |
810 | UINT32 TempDebugEntryRva;\r |
2ce31132 |
811 | UINT32 NumberOfRvaAndSizes;\r |
513b53b1 |
812 | UINT16 Magic;\r |
878ddf1f |
813 | \r |
4ba61e5e |
814 | ASSERT (ImageContext != NULL);\r |
815 | \r |
878ddf1f |
816 | //\r |
817 | // Assume success\r |
818 | //\r |
819 | ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r |
820 | \r |
821 | //\r |
822 | // Copy the provided context info into our local version, get what we\r |
823 | // can from the original image, and then use that to make sure everything\r |
824 | // is legit.\r |
825 | //\r |
826 | CopyMem (&CheckContext, ImageContext, sizeof (PE_COFF_LOADER_IMAGE_CONTEXT));\r |
827 | \r |
828 | Status = PeCoffLoaderGetImageInfo (&CheckContext);\r |
829 | if (RETURN_ERROR (Status)) {\r |
830 | return Status;\r |
831 | }\r |
832 | \r |
833 | //\r |
834 | // Make sure there is enough allocated space for the image being loaded\r |
835 | //\r |
836 | if (ImageContext->ImageSize < CheckContext.ImageSize) {\r |
837 | ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_SIZE;\r |
838 | return RETURN_BUFFER_TOO_SMALL;\r |
839 | }\r |
4ba61e5e |
840 | if (ImageContext->ImageAddress == 0) {\r |
841 | //\r |
842 | // Image cannot be loaded into 0 address.\r |
843 | //\r |
844 | ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r |
845 | return RETURN_INVALID_PARAMETER;\r |
846 | }\r |
878ddf1f |
847 | //\r |
848 | // If there's no relocations, then make sure it's not a runtime driver,\r |
849 | // and that it's being loaded at the linked address.\r |
850 | //\r |
851 | if (CheckContext.RelocationsStripped) {\r |
852 | //\r |
853 | // If the image does not contain relocations and it is a runtime driver\r |
854 | // then return an error.\r |
855 | //\r |
856 | if (CheckContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) {\r |
857 | ImageContext->ImageError = IMAGE_ERROR_INVALID_SUBSYSTEM;\r |
858 | return RETURN_LOAD_ERROR;\r |
859 | }\r |
860 | //\r |
861 | // If the image does not contain relocations, and the requested load address\r |
862 | // is not the linked address, then return an error.\r |
863 | //\r |
864 | if (CheckContext.ImageAddress != ImageContext->ImageAddress) {\r |
865 | ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r |
866 | return RETURN_INVALID_PARAMETER;\r |
867 | }\r |
868 | }\r |
869 | //\r |
870 | // Make sure the allocated space has the proper section alignment\r |
871 | //\r |
872 | if (!(ImageContext->IsTeImage)) {\r |
873 | if ((ImageContext->ImageAddress & (CheckContext.SectionAlignment - 1)) != 0) {\r |
874 | ImageContext->ImageError = IMAGE_ERROR_INVALID_SECTION_ALIGNMENT;\r |
875 | return RETURN_INVALID_PARAMETER;\r |
876 | }\r |
877 | }\r |
878 | //\r |
879 | // Read the entire PE/COFF or TE header into memory\r |
880 | //\r |
881 | if (!(ImageContext->IsTeImage)) {\r |
882 | Status = ImageContext->ImageRead (\r |
883 | ImageContext->Handle,\r |
884 | 0,\r |
885 | &ImageContext->SizeOfHeaders,\r |
886 | (VOID *) (UINTN) ImageContext->ImageAddress\r |
887 | );\r |
888 | \r |
2ce31132 |
889 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);\r |
878ddf1f |
890 | \r |
891 | FirstSection = (EFI_IMAGE_SECTION_HEADER *) (\r |
892 | (UINTN)ImageContext->ImageAddress +\r |
893 | ImageContext->PeCoffHeaderOffset +\r |
9c7790d2 |
894 | sizeof(UINT32) +\r |
895 | sizeof(EFI_IMAGE_FILE_HEADER) +\r |
2ce31132 |
896 | Hdr.Pe32->FileHeader.SizeOfOptionalHeader\r |
878ddf1f |
897 | );\r |
2ce31132 |
898 | NumberOfSections = (UINTN) (Hdr.Pe32->FileHeader.NumberOfSections);\r |
878ddf1f |
899 | } else {\r |
900 | Status = ImageContext->ImageRead (\r |
901 | ImageContext->Handle,\r |
902 | 0,\r |
903 | &ImageContext->SizeOfHeaders,\r |
2ce31132 |
904 | (void *)(UINTN)ImageContext->ImageAddress\r |
878ddf1f |
905 | );\r |
906 | \r |
2ce31132 |
907 | Hdr.Te = (EFI_TE_IMAGE_HEADER *)(UINTN)(ImageContext->ImageAddress);\r |
878ddf1f |
908 | \r |
909 | FirstSection = (EFI_IMAGE_SECTION_HEADER *) (\r |
2ce31132 |
910 | (UINTN)ImageContext->ImageAddress +\r |
911 | sizeof(EFI_TE_IMAGE_HEADER)\r |
912 | );\r |
913 | NumberOfSections = (UINTN) (Hdr.Te->NumberOfSections);\r |
878ddf1f |
914 | \r |
915 | }\r |
916 | \r |
917 | if (RETURN_ERROR (Status)) {\r |
918 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r |
919 | return RETURN_LOAD_ERROR;\r |
920 | }\r |
921 | \r |
922 | //\r |
923 | // Load each section of the image\r |
924 | //\r |
925 | Section = FirstSection;\r |
926 | for (Index = 0, MaxEnd = NULL; Index < NumberOfSections; Index++) {\r |
927 | \r |
928 | //\r |
929 | // Compute sections address\r |
930 | //\r |
931 | Base = PeCoffLoaderImageAddress (ImageContext, Section->VirtualAddress);\r |
932 | End = PeCoffLoaderImageAddress (\r |
933 | ImageContext,\r |
934 | Section->VirtualAddress + Section->Misc.VirtualSize - 1\r |
935 | );\r |
936 | if (ImageContext->IsTeImage) {\r |
2ce31132 |
937 | Base = (CHAR8 *)((UINTN) Base + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN)Hdr.Te->StrippedSize);\r |
938 | End = (CHAR8 *)((UINTN) End + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN)Hdr.Te->StrippedSize);\r |
878ddf1f |
939 | }\r |
940 | \r |
941 | if (End > MaxEnd) {\r |
942 | MaxEnd = End;\r |
943 | }\r |
944 | //\r |
945 | // If the base start or end address resolved to 0, then fail.\r |
946 | //\r |
947 | if ((Base == NULL) || (End == NULL)) {\r |
948 | ImageContext->ImageError = IMAGE_ERROR_SECTION_NOT_LOADED;\r |
949 | return RETURN_LOAD_ERROR;\r |
950 | }\r |
951 | \r |
952 | //\r |
953 | // Read the section\r |
954 | //\r |
955 | Size = (UINTN) Section->Misc.VirtualSize;\r |
956 | if ((Size == 0) || (Size > Section->SizeOfRawData)) {\r |
957 | Size = (UINTN) Section->SizeOfRawData;\r |
958 | }\r |
959 | \r |
960 | if (Section->SizeOfRawData) {\r |
961 | if (!(ImageContext->IsTeImage)) {\r |
962 | Status = ImageContext->ImageRead (\r |
963 | ImageContext->Handle,\r |
964 | Section->PointerToRawData,\r |
965 | &Size,\r |
966 | Base\r |
967 | );\r |
968 | } else {\r |
969 | Status = ImageContext->ImageRead (\r |
970 | ImageContext->Handle,\r |
2ce31132 |
971 | Section->PointerToRawData + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN)Hdr.Te->StrippedSize,\r |
878ddf1f |
972 | &Size,\r |
973 | Base\r |
974 | );\r |
975 | }\r |
976 | \r |
977 | if (RETURN_ERROR (Status)) {\r |
978 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r |
979 | return Status;\r |
980 | }\r |
981 | }\r |
982 | \r |
983 | //\r |
984 | // If raw size is less then virt size, zero fill the remaining\r |
985 | //\r |
986 | \r |
987 | if (Size < Section->Misc.VirtualSize) {\r |
988 | ZeroMem (Base + Size, Section->Misc.VirtualSize - Size);\r |
989 | }\r |
990 | \r |
991 | //\r |
992 | // Next Section\r |
993 | //\r |
994 | Section += 1;\r |
995 | }\r |
996 | \r |
997 | //\r |
998 | // Get image's entry point\r |
999 | //\r |
513b53b1 |
1000 | Magic = PeCoffLoaderGetPeHeaderMagicValue (Hdr);\r |
878ddf1f |
1001 | if (!(ImageContext->IsTeImage)) {\r |
2ce31132 |
1002 | //\r |
1003 | // Sizes of AddressOfEntryPoint are different so we need to do this safely\r |
1004 | //\r |
513b53b1 |
1005 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r |
2ce31132 |
1006 | //\r |
1007 | // Use PE32 offset\r |
9c7790d2 |
1008 | //\r |
2ce31132 |
1009 | ImageContext->EntryPoint = (PHYSICAL_ADDRESS)(UINTN)PeCoffLoaderImageAddress (\r |
1010 | ImageContext,\r |
1011 | (UINTN)Hdr.Pe32->OptionalHeader.AddressOfEntryPoint\r |
1012 | );\r |
1013 | } else {\r |
1014 | //\r |
1015 | // Use PE32+ offset\r |
1016 | //\r |
1017 | ImageContext->EntryPoint = (PHYSICAL_ADDRESS)(UINTN)PeCoffLoaderImageAddress (\r |
1018 | ImageContext,\r |
1019 | (UINTN)Hdr.Pe32Plus->OptionalHeader.AddressOfEntryPoint\r |
1020 | );\r |
1021 | }\r |
878ddf1f |
1022 | } else {\r |
1023 | ImageContext->EntryPoint = (PHYSICAL_ADDRESS) (\r |
2ce31132 |
1024 | (UINTN)ImageContext->ImageAddress +\r |
1025 | (UINTN)Hdr.Te->AddressOfEntryPoint +\r |
1026 | (UINTN)sizeof(EFI_TE_IMAGE_HEADER) -\r |
1027 | (UINTN)Hdr.Te->StrippedSize\r |
1028 | );\r |
878ddf1f |
1029 | }\r |
1030 | \r |
1031 | //\r |
1032 | // Determine the size of the fixup data\r |
1033 | //\r |
1034 | // Per the PE/COFF spec, you can't assume that a given data directory\r |
1035 | // is present in the image. You have to check the NumberOfRvaAndSizes in\r |
1036 | // the optional header to verify a desired directory entry is there.\r |
1037 | //\r |
1038 | if (!(ImageContext->IsTeImage)) {\r |
513b53b1 |
1039 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r |
2ce31132 |
1040 | //\r |
1041 | // Use PE32 offset\r |
1042 | //\r |
1043 | NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r |
1044 | DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r |
1045 | } else {\r |
1046 | //\r |
1047 | // Use PE32+ offset\r |
1048 | //\r |
1049 | NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r |
1050 | DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r |
1051 | }\r |
9c7790d2 |
1052 | \r |
2ce31132 |
1053 | if (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r |
878ddf1f |
1054 | ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);\r |
1055 | } else {\r |
1056 | ImageContext->FixupDataSize = 0;\r |
1057 | }\r |
1058 | } else {\r |
2ce31132 |
1059 | DirectoryEntry = &Hdr.Te->DataDirectory[0];\r |
878ddf1f |
1060 | ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);\r |
1061 | }\r |
1062 | //\r |
1063 | // Consumer must allocate a buffer for the relocation fixup log.\r |
1064 | // Only used for runtime drivers.\r |
1065 | //\r |
1066 | ImageContext->FixupData = NULL;\r |
1067 | \r |
1068 | //\r |
1069 | // Load the Codeview info if present\r |
1070 | //\r |
1071 | if (ImageContext->DebugDirectoryEntryRva != 0) {\r |
1072 | if (!(ImageContext->IsTeImage)) {\r |
1073 | DebugEntry = PeCoffLoaderImageAddress (\r |
1074 | ImageContext,\r |
1075 | ImageContext->DebugDirectoryEntryRva\r |
1076 | );\r |
1077 | } else {\r |
1078 | DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)(UINTN)(\r |
2ce31132 |
1079 | ImageContext->ImageAddress +\r |
1080 | ImageContext->DebugDirectoryEntryRva +\r |
1081 | sizeof(EFI_TE_IMAGE_HEADER) -\r |
1082 | Hdr.Te->StrippedSize\r |
1083 | );\r |
878ddf1f |
1084 | }\r |
1085 | \r |
1086 | if (DebugEntry != NULL) {\r |
1087 | TempDebugEntryRva = DebugEntry->RVA;\r |
1088 | if (DebugEntry->RVA == 0 && DebugEntry->FileOffset != 0) {\r |
1089 | Section--;\r |
2ce31132 |
1090 | if ((UINTN)Section->SizeOfRawData < Section->Misc.VirtualSize) {\r |
878ddf1f |
1091 | TempDebugEntryRva = Section->VirtualAddress + Section->Misc.VirtualSize;\r |
1092 | } else {\r |
1093 | TempDebugEntryRva = Section->VirtualAddress + Section->SizeOfRawData;\r |
1094 | }\r |
1095 | }\r |
1096 | \r |
1097 | if (TempDebugEntryRva != 0) {\r |
1098 | if (!(ImageContext->IsTeImage)) {\r |
1099 | ImageContext->CodeView = PeCoffLoaderImageAddress (ImageContext, TempDebugEntryRva);\r |
1100 | } else {\r |
1101 | ImageContext->CodeView = (VOID *)(\r |
2ce31132 |
1102 | (UINTN)ImageContext->ImageAddress +\r |
1103 | (UINTN)TempDebugEntryRva +\r |
1104 | (UINTN)sizeof (EFI_TE_IMAGE_HEADER) -\r |
1105 | (UINTN) Hdr.Te->StrippedSize\r |
1106 | );\r |
878ddf1f |
1107 | }\r |
1108 | \r |
1109 | if (ImageContext->CodeView == NULL) {\r |
1110 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r |
1111 | return RETURN_LOAD_ERROR;\r |
1112 | }\r |
1113 | \r |
1114 | if (DebugEntry->RVA == 0) {\r |
1115 | Size = DebugEntry->SizeOfData;\r |
1116 | if (!(ImageContext->IsTeImage)) {\r |
1117 | Status = ImageContext->ImageRead (\r |
1118 | ImageContext->Handle,\r |
1119 | DebugEntry->FileOffset,\r |
1120 | &Size,\r |
1121 | ImageContext->CodeView\r |
1122 | );\r |
1123 | } else {\r |
1124 | Status = ImageContext->ImageRead (\r |
1125 | ImageContext->Handle,\r |
2ce31132 |
1126 | DebugEntry->FileOffset + sizeof (EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize,\r |
878ddf1f |
1127 | &Size,\r |
1128 | ImageContext->CodeView\r |
1129 | );\r |
1130 | //\r |
1131 | // Should we apply fix up to this field according to the size difference between PE and TE?\r |
1132 | // Because now we maintain TE header fields unfixed, this field will also remain as they are\r |
1133 | // in original PE image.\r |
1134 | //\r |
1135 | }\r |
1136 | \r |
1137 | if (RETURN_ERROR (Status)) {\r |
1138 | ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r |
1139 | return RETURN_LOAD_ERROR;\r |
1140 | }\r |
1141 | \r |
1142 | DebugEntry->RVA = TempDebugEntryRva;\r |
1143 | }\r |
1144 | \r |
1145 | switch (*(UINT32 *) ImageContext->CodeView) {\r |
1146 | case CODEVIEW_SIGNATURE_NB10:\r |
2ce31132 |
1147 | ImageContext->PdbPointer = (CHAR8 *)ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY);\r |
878ddf1f |
1148 | break;\r |
1149 | \r |
1150 | case CODEVIEW_SIGNATURE_RSDS:\r |
2ce31132 |
1151 | ImageContext->PdbPointer = (CHAR8 *)ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY);\r |
878ddf1f |
1152 | break;\r |
1153 | \r |
1154 | default:\r |
1155 | break;\r |
1156 | }\r |
1157 | }\r |
1158 | }\r |
1159 | }\r |
1160 | \r |
1161 | return Status;\r |
1162 | }\r |
2ce31132 |
1163 | \r |
1164 | \r |
1165 | /**\r |
1166 | Reapply fixups on a fixed up PE32/PE32+ image to allow virutal calling at EFI\r |
9c7790d2 |
1167 | runtime.\r |
1168 | \r |
2ce31132 |
1169 | PE_COFF_LOADER_IMAGE_CONTEXT.FixupData stores information needed to reapply\r |
1170 | the fixups with a virtual mapping.\r |
1171 | \r |
1172 | \r |
1173 | @param ImageBase Base address of relocated image\r |
1174 | @param VirtImageBase Virtual mapping for ImageBase\r |
1175 | @param ImageSize Size of the image to relocate\r |
1176 | @param RelocationData Location to place results of read\r |
9c7790d2 |
1177 | \r |
2ce31132 |
1178 | **/\r |
1179 | VOID\r |
1180 | EFIAPI\r |
1181 | PeCoffLoaderRelocateImageForRuntime (\r |
1182 | IN PHYSICAL_ADDRESS ImageBase,\r |
1183 | IN PHYSICAL_ADDRESS VirtImageBase,\r |
1184 | IN UINTN ImageSize,\r |
1185 | IN VOID *RelocationData\r |
1186 | )\r |
1187 | {\r |
1188 | CHAR8 *OldBase;\r |
1189 | CHAR8 *NewBase;\r |
1190 | EFI_IMAGE_DOS_HEADER *DosHdr;\r |
1191 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r |
1192 | UINT32 NumberOfRvaAndSizes;\r |
1193 | EFI_IMAGE_DATA_DIRECTORY *DataDirectory;\r |
1194 | EFI_IMAGE_DATA_DIRECTORY *RelocDir;\r |
1195 | EFI_IMAGE_BASE_RELOCATION *RelocBase;\r |
1196 | EFI_IMAGE_BASE_RELOCATION *RelocBaseEnd;\r |
1197 | UINT16 *Reloc;\r |
1198 | UINT16 *RelocEnd;\r |
1199 | CHAR8 *Fixup;\r |
1200 | CHAR8 *FixupBase;\r |
1201 | UINT16 *F16;\r |
1202 | UINT32 *F32;\r |
1203 | UINT64 *F64;\r |
1204 | CHAR8 *FixupData;\r |
1205 | UINTN Adjust;\r |
1206 | RETURN_STATUS Status;\r |
513b53b1 |
1207 | UINT16 Magic;\r |
2ce31132 |
1208 | \r |
1209 | OldBase = (CHAR8 *)((UINTN)ImageBase);\r |
1210 | NewBase = (CHAR8 *)((UINTN)VirtImageBase);\r |
1211 | Adjust = (UINTN) NewBase - (UINTN) OldBase;\r |
1212 | \r |
1213 | //\r |
1214 | // Find the image's relocate dir info\r |
1215 | //\r |
1216 | DosHdr = (EFI_IMAGE_DOS_HEADER *)OldBase;\r |
1217 | if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r |
1218 | //\r |
1219 | // Valid DOS header so get address of PE header\r |
1220 | //\r |
1221 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)(((CHAR8 *)DosHdr) + DosHdr->e_lfanew);\r |
1222 | } else {\r |
1223 | //\r |
1224 | // No Dos header so assume image starts with PE header.\r |
1225 | //\r |
1226 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)OldBase;\r |
1227 | }\r |
1228 | \r |
1229 | if (Hdr.Pe32->Signature != EFI_IMAGE_NT_SIGNATURE) {\r |
1230 | //\r |
1231 | // Not a valid PE image so Exit\r |
1232 | //\r |
1233 | return ;\r |
1234 | }\r |
1235 | \r |
513b53b1 |
1236 | Magic = PeCoffLoaderGetPeHeaderMagicValue (Hdr);\r |
1237 | \r |
1238 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r |
9c7790d2 |
1239 | //\r |
2ce31132 |
1240 | // Use PE32 offset\r |
1241 | //\r |
1242 | NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r |
317f832e |
1243 | DataDirectory = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[0]);\r |
2ce31132 |
1244 | } else {\r |
9c7790d2 |
1245 | //\r |
2ce31132 |
1246 | // Use PE32+ offset\r |
1247 | //\r |
1248 | NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r |
317f832e |
1249 | DataDirectory = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[0]);\r |
9c7790d2 |
1250 | }\r |
2ce31132 |
1251 | \r |
1252 | //\r |
1253 | // Find the relocation block\r |
1254 | //\r |
1255 | // Per the PE/COFF spec, you can't assume that a given data directory\r |
1256 | // is present in the image. You have to check the NumberOfRvaAndSizes in\r |
1257 | // the optional header to verify a desired directory entry is there.\r |
9c7790d2 |
1258 | //\r |
2ce31132 |
1259 | if (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r |
1260 | RelocDir = DataDirectory + EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC;\r |
1261 | RelocBase = (EFI_IMAGE_BASE_RELOCATION *)(UINTN)(ImageBase + RelocDir->VirtualAddress);\r |
1262 | RelocBaseEnd = (EFI_IMAGE_BASE_RELOCATION *)(UINTN)(ImageBase + RelocDir->VirtualAddress + RelocDir->Size);\r |
1263 | } else {\r |
1264 | //\r |
1265 | // Cannot find relocations, cannot continue\r |
1266 | //\r |
1267 | ASSERT (FALSE);\r |
1268 | return ;\r |
1269 | }\r |
1270 | \r |
1271 | ASSERT (RelocBase != NULL && RelocBaseEnd != NULL);\r |
1272 | \r |
1273 | //\r |
1274 | // Run the whole relocation block. And re-fixup data that has not been\r |
1275 | // modified. The FixupData is used to see if the image has been modified\r |
1276 | // since it was relocated. This is so data sections that have been updated\r |
1277 | // by code will not be fixed up, since that would set them back to\r |
1278 | // defaults.\r |
1279 | //\r |
1280 | FixupData = RelocationData;\r |
1281 | while (RelocBase < RelocBaseEnd) {\r |
1282 | \r |
1283 | Reloc = (UINT16 *) ((UINT8 *) RelocBase + sizeof (EFI_IMAGE_BASE_RELOCATION));\r |
1284 | RelocEnd = (UINT16 *) ((UINT8 *) RelocBase + RelocBase->SizeOfBlock);\r |
1285 | FixupBase = (CHAR8 *) ((UINTN)ImageBase) + RelocBase->VirtualAddress;\r |
1286 | \r |
1287 | //\r |
1288 | // Run this relocation record\r |
1289 | //\r |
1290 | while (Reloc < RelocEnd) {\r |
1291 | \r |
1292 | Fixup = FixupBase + (*Reloc & 0xFFF);\r |
1293 | switch ((*Reloc) >> 12) {\r |
1294 | \r |
1295 | case EFI_IMAGE_REL_BASED_ABSOLUTE:\r |
1296 | break;\r |
1297 | \r |
1298 | case EFI_IMAGE_REL_BASED_HIGH:\r |
1299 | F16 = (UINT16 *) Fixup;\r |
1300 | if (*(UINT16 *) FixupData == *F16) {\r |
9c7790d2 |
1301 | *F16 = (UINT16) (*F16 + ((UINT16) ((UINT32) Adjust >> 16)));\r |
2ce31132 |
1302 | }\r |
1303 | \r |
1304 | FixupData = FixupData + sizeof (UINT16);\r |
1305 | break;\r |
1306 | \r |
1307 | case EFI_IMAGE_REL_BASED_LOW:\r |
1308 | F16 = (UINT16 *) Fixup;\r |
1309 | if (*(UINT16 *) FixupData == *F16) {\r |
1310 | *F16 = (UINT16) (*F16 + ((UINT16) Adjust & 0xffff));\r |
1311 | }\r |
1312 | \r |
1313 | FixupData = FixupData + sizeof (UINT16);\r |
1314 | break;\r |
1315 | \r |
1316 | case EFI_IMAGE_REL_BASED_HIGHLOW:\r |
1317 | F32 = (UINT32 *) Fixup;\r |
1318 | FixupData = ALIGN_POINTER (FixupData, sizeof (UINT32));\r |
1319 | if (*(UINT32 *) FixupData == *F32) {\r |
1320 | *F32 = *F32 + (UINT32) Adjust;\r |
1321 | }\r |
1322 | \r |
1323 | FixupData = FixupData + sizeof (UINT32);\r |
1324 | break;\r |
1325 | \r |
1326 | case EFI_IMAGE_REL_BASED_DIR64:\r |
1327 | F64 = (UINT64 *)Fixup;\r |
1328 | FixupData = ALIGN_POINTER (FixupData, sizeof (UINT64));\r |
317f832e |
1329 | if (*(UINT64 *) FixupData == *F64) {\r |
2ce31132 |
1330 | *F64 = *F64 + (UINT64)Adjust;\r |
1331 | }\r |
317f832e |
1332 | \r |
1333 | FixupData = FixupData + sizeof (UINT64);\r |
2ce31132 |
1334 | break;\r |
1335 | \r |
1336 | case EFI_IMAGE_REL_BASED_HIGHADJ:\r |
1337 | //\r |
1338 | // Not implemented, but not used in EFI 1.0\r |
1339 | //\r |
1340 | ASSERT (FALSE);\r |
1341 | break;\r |
1342 | \r |
1343 | default:\r |
1344 | //\r |
1345 | // Only Itanium requires ConvertPeImage_Ex\r |
1346 | //\r |
1347 | Status = PeHotRelocateImageEx (Reloc, Fixup, &FixupData, Adjust);\r |
1348 | if (RETURN_ERROR (Status)) {\r |
1349 | return ;\r |
1350 | }\r |
1351 | }\r |
1352 | //\r |
1353 | // Next relocation record\r |
1354 | //\r |
1355 | Reloc += 1;\r |
1356 | }\r |
1357 | //\r |
1358 | // next reloc block\r |
1359 | //\r |
1360 | RelocBase = (EFI_IMAGE_BASE_RELOCATION *) RelocEnd;\r |
1361 | }\r |
1362 | }\r |
1363 | \r |
1364 | \r |
1365 | /**\r |
1366 | ImageRead function that operates on a memory buffer whos base is passed into\r |
9c7790d2 |
1367 | FileHandle.\r |
2ce31132 |
1368 | \r |
1369 | @param FileHandle Ponter to baes of the input stream\r |
1370 | @param FileOffset Offset to the start of the buffer\r |
1371 | @param ReadSize Number of bytes to copy into the buffer\r |
1372 | @param Buffer Location to place results of read\r |
1373 | \r |
9c7790d2 |
1374 | @retval RETURN_SUCCESS Data is read from FileOffset from the Handle into\r |
2ce31132 |
1375 | the buffer.\r |
1376 | **/\r |
1377 | RETURN_STATUS\r |
1378 | EFIAPI\r |
1379 | PeCoffLoaderImageReadFromMemory (\r |
1380 | IN VOID *FileHandle,\r |
1381 | IN UINTN FileOffset,\r |
1382 | IN OUT UINTN *ReadSize,\r |
1383 | OUT VOID *Buffer\r |
1384 | )\r |
1385 | {\r |
1386 | CopyMem (Buffer, ((UINT8 *)FileHandle) + FileOffset, *ReadSize);\r |
1387 | return RETURN_SUCCESS;\r |
1388 | }\r |
1389 | \r |