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Commit | Line | Data |
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d25c4bf0 | 1 | /*++\r |
2 | \r | |
ad1f8df0 | 3 | Copyright (c) 1999-2006 Intel Corporation. All rights reserved\r |
8733430b | 4 | This program and the accompanying materials are licensed and made available\r |
5 | under the terms and conditions of the BSD License which accompanies this\r | |
ad1f8df0 | 6 | distribution. The full text of the license may be found at\r |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
d25c4bf0 | 11 | \r |
12 | \r | |
13 | Module Name:\r | |
14 | \r | |
15 | PeiRebaseExe.c\r | |
16 | \r | |
17 | Abstract:\r | |
18 | \r | |
19 | This contains all code necessary to build the PeiRebase.exe utility.\r | |
20 | This utility relies heavily on the PeiRebase DLL. Definitions for both\r | |
21 | can be found in the PEI Rebase Utility Specification, review draft.\r | |
22 | \r | |
23 | --*/\r | |
24 | \r | |
d25c4bf0 | 25 | #include <stdlib.h>\r |
26 | #include <stdio.h>\r | |
27 | #include <string.h>\r | |
ce53a8c3 | 28 | \r |
29 | #include <Common/UefiBaseTypes.h>\r | |
30 | #include <Common/FirmwareVolumeImageFormat.h>\r | |
31 | #include <Common/FirmwareFileSystem.h>\r | |
32 | #include <Library/PeCoffLib.h>\r | |
33 | \r | |
3ce2b1a8 | 34 | #include "CommonLib.h"\r |
d25c4bf0 | 35 | #include "ParseInf.h"\r |
d25c4bf0 | 36 | #include "FvLib.h"\r |
d25c4bf0 | 37 | #include "EfiUtilityMsgs.h"\r |
51d48c26 | 38 | #include "PeiRebaseExe.h"\r |
d25c4bf0 | 39 | \r |
d25c4bf0 | 40 | EFI_STATUS\r |
41 | ReadHeader (\r | |
42 | IN FILE *InputFile,\r | |
43 | OUT UINT32 *FvSize,\r | |
44 | OUT BOOLEAN *ErasePolarity\r | |
45 | );\r | |
46 | \r | |
47 | int\r | |
48 | main (\r | |
49 | int argc,\r | |
50 | char **argv\r | |
51 | )\r | |
52 | /*++\r | |
53 | \r | |
54 | Routine Description:\r | |
55 | \r | |
56 | This utility relocates PEI XIP PE32s in a FV.\r | |
57 | \r | |
58 | Arguments:\r | |
59 | \r | |
60 | argc - Number of command line arguments\r | |
61 | argv[]:\r | |
8733430b | 62 | BaseAddress The base address to use for rebasing the FV. The correct\r |
d25c4bf0 | 63 | format is a hex number preceded by 0x.\r |
64 | InputFileName The name of the input FV file.\r | |
65 | OutputFileName The name of the output FV file.\r | |
66 | \r | |
67 | Arguments come in pair in any order.\r | |
8733430b | 68 | -I InputFileName\r |
d25c4bf0 | 69 | -O OutputFileName\r |
8733430b | 70 | -B BaseAddress\r |
d25c4bf0 | 71 | \r |
72 | Returns:\r | |
73 | \r | |
74 | 0 No error conditions detected.\r | |
75 | 1 One or more of the input parameters is invalid.\r | |
8733430b | 76 | 2 A resource required by the utility was unavailable.\r |
d25c4bf0 | 77 | Most commonly this will be memory allocation or file creation.\r |
78 | 3 PeiRebase.dll could not be loaded.\r | |
79 | 4 Error executing the PEI rebase.\r | |
80 | \r | |
81 | --*/\r | |
82 | {\r | |
83 | UINT8 Index;\r | |
84 | CHAR8 InputFileName[_MAX_PATH];\r | |
8733430b | 85 | CHAR8 *OutputFileName;\r |
86 | EFI_PHYSICAL_ADDRESS XipBase, BsBase, RtBase;\r | |
87 | UINT32 BaseTypes;\r | |
d25c4bf0 | 88 | EFI_STATUS Status;\r |
89 | FILE *InputFile;\r | |
90 | FILE *OutputFile;\r | |
8733430b | 91 | FILE *LogFile;\r |
d25c4bf0 | 92 | UINT64 FvOffset;\r |
93 | UINT32 FileCount;\r | |
94 | int BytesRead;\r | |
95 | EFI_FIRMWARE_VOLUME_HEADER *FvImage;\r | |
96 | UINT32 FvSize;\r | |
97 | EFI_FFS_FILE_HEADER *CurrentFile;\r | |
98 | BOOLEAN ErasePolarity;\r | |
4c50c885 | 99 | MEMORY_FILE InfMemoryFile;\r |
8733430b | 100 | CHAR8 StringBuffer[0x100];\r |
d25c4bf0 | 101 | \r |
102 | ErasePolarity = FALSE;\r | |
103 | //\r | |
104 | // Set utility name for error/warning reporting purposes.\r | |
105 | //\r | |
106 | SetUtilityName (UTILITY_NAME);\r | |
fd23b925 | 107 | \r |
108 | if (argc == 1) {\r | |
109 | Usage();\r | |
110 | return STATUS_ERROR;\r | |
111 | }\r | |
112 | \r | |
113 | if ((strcmp(argv[1], "-h") == 0) || (strcmp(argv[1], "--help") == 0) ||\r | |
114 | (strcmp(argv[1], "-?") == 0) || (strcmp(argv[1], "/?") == 0)) {\r | |
115 | Usage();\r | |
116 | return STATUS_ERROR;\r | |
117 | }\r | |
118 | \r | |
119 | if ((strcmp(argv[1], "-V") == 0) || (strcmp(argv[1], "--version") == 0)) {\r | |
120 | Version();\r | |
121 | return STATUS_ERROR;\r | |
122 | }\r | |
123 | \r | |
d25c4bf0 | 124 | //\r |
125 | // Verify the correct number of arguments\r | |
126 | //\r | |
127 | if (argc != MAX_ARGS) {\r | |
fd23b925 | 128 | Usage ();\r |
d25c4bf0 | 129 | return STATUS_ERROR;\r |
130 | }\r | |
5049fd31 | 131 | \r |
d25c4bf0 | 132 | //\r |
133 | // Initialize variables\r | |
134 | //\r | |
8733430b | 135 | InputFileName[0] = '\0';\r |
136 | OutputFileName = NULL;\r | |
137 | XipBase = BsBase = RtBase = 0;\r | |
138 | BaseTypes = 0;\r | |
d25c4bf0 | 139 | FvOffset = 0;\r |
140 | FileCount = 0;\r | |
141 | ErasePolarity = FALSE;\r | |
142 | InputFile = NULL;\r | |
143 | OutputFile = NULL;\r | |
8733430b | 144 | LogFile = NULL;\r |
d25c4bf0 | 145 | FvImage = NULL;\r |
5049fd31 | 146 | \r |
d25c4bf0 | 147 | //\r |
148 | // Parse the command line arguments\r | |
149 | //\r | |
150 | for (Index = 1; Index < MAX_ARGS; Index += 2) {\r | |
151 | //\r | |
152 | // Make sure argument pair begin with - or /\r | |
153 | //\r | |
154 | if (argv[Index][0] != '-' && argv[Index][0] != '/') {\r | |
fd23b925 | 155 | Usage ();\r |
d25c4bf0 | 156 | Error (NULL, 0, 0, argv[Index], "unrecognized option");\r |
157 | return STATUS_ERROR;\r | |
158 | }\r | |
159 | //\r | |
160 | // Make sure argument specifier is only one letter\r | |
161 | //\r | |
162 | if (argv[Index][2] != 0) {\r | |
fd23b925 | 163 | Usage ();\r |
d25c4bf0 | 164 | Error (NULL, 0, 0, argv[Index], "unrecognized option");\r |
165 | return STATUS_ERROR;\r | |
8733430b | 166 | }\r |
d25c4bf0 | 167 | //\r |
168 | // Determine argument to read\r | |
169 | //\r | |
170 | switch (argv[Index][1]) {\r | |
171 | case 'I':\r | |
172 | case 'i':\r | |
173 | if (strlen (InputFileName) == 0) {\r | |
174 | strcpy (InputFileName, argv[Index + 1]);\r | |
175 | } else {\r | |
fd23b925 | 176 | Usage ();\r |
d25c4bf0 | 177 | Error (NULL, 0, 0, argv[Index + 1], "only one -i InputFileName may be specified");\r |
178 | return STATUS_ERROR;\r | |
179 | }\r | |
180 | break;\r | |
181 | \r | |
182 | case 'O':\r | |
183 | case 'o':\r | |
8733430b | 184 | if (OutputFileName == NULL) {\r |
185 | OutputFileName = argv[Index + 1];\r | |
d25c4bf0 | 186 | } else {\r |
fd23b925 | 187 | Usage ();\r |
d25c4bf0 | 188 | Error (NULL, 0, 0, argv[Index + 1], "only one -o OutputFileName may be specified");\r |
189 | return STATUS_ERROR;\r | |
190 | }\r | |
191 | break;\r | |
192 | \r | |
8733430b | 193 | case 'F':\r |
194 | case 'f':\r | |
195 | //\r | |
196 | // Load INF file into memory & initialize MEMORY_FILE structure\r | |
197 | //\r | |
198 | Status = GetFileImage (argv[Index + 1], &InfMemoryFile.FileImage, (UINT32*)&InfMemoryFile.Eof);\r | |
199 | InfMemoryFile.Eof = InfMemoryFile.FileImage + (UINT32)(UINTN)InfMemoryFile.Eof;\r | |
200 | InfMemoryFile.CurrentFilePointer = InfMemoryFile.FileImage;\r | |
201 | if (EFI_ERROR (Status)) {\r | |
202 | Error (NULL, 0, 0, argv[Index + 1], "Error opening FvInfFile");\r | |
203 | return STATUS_ERROR;\r | |
204 | }\r | |
205 | \r | |
206 | //\r | |
207 | // Read BaseAddress from fv.inf file\r | |
208 | //\r | |
209 | FindToken (&InfMemoryFile, "[options]", "EFI_BASE_ADDRESS", 0, StringBuffer);\r | |
210 | \r | |
211 | //\r | |
212 | // Free INF file image\r | |
213 | //\r | |
214 | free (InfMemoryFile.FileImage);\r | |
215 | \r | |
216 | //\r | |
217 | // Point argv[Index + 1] to StringBuffer so that it could be processed as "-b"\r | |
218 | //\r | |
219 | argv[Index + 1] = StringBuffer;\r | |
220 | \r | |
d25c4bf0 | 221 | case 'B':\r |
222 | case 'b':\r | |
8733430b | 223 | if (BaseTypes & 1) {\r |
fd23b925 | 224 | Usage ();\r |
8733430b | 225 | Error (NULL, 0, 0, argv[Index + 1], "XipBaseAddress may be specified only once by either -b or -f");\r |
226 | return STATUS_ERROR;\r | |
227 | }\r | |
d25c4bf0 | 228 | \r |
8733430b | 229 | Status = AsciiStringToUint64 (argv[Index + 1], FALSE, &XipBase);\r |
230 | if (EFI_ERROR (Status)) {\r | |
fd23b925 | 231 | Usage ();\r |
8733430b | 232 | Error (NULL, 0, 0, argv[Index + 1], "invalid hex digit given for XIP base address");\r |
d25c4bf0 | 233 | return STATUS_ERROR;\r |
234 | }\r | |
8733430b | 235 | \r |
236 | BaseTypes |= 1;\r | |
d25c4bf0 | 237 | break;\r |
238 | \r | |
8733430b | 239 | case 'D':\r |
240 | case 'd':\r | |
241 | if (BaseTypes & 2) {\r | |
fd23b925 | 242 | Usage ();\r |
8733430b | 243 | Error (NULL, 0, 0, argv[Index + 1], "-d BsBaseAddress may be specified only once");\r |
244 | return STATUS_ERROR;\r | |
245 | }\r | |
4c50c885 | 246 | \r |
8733430b | 247 | Status = AsciiStringToUint64 (argv[Index + 1], FALSE, &BsBase);\r |
248 | if (EFI_ERROR (Status)) {\r | |
fd23b925 | 249 | Usage ();\r |
8733430b | 250 | Error (NULL, 0, 0, argv[Index + 1], "invalid hex digit given for BS_DRIVER base address");\r |
4c50c885 LG |
251 | return STATUS_ERROR;\r |
252 | }\r | |
8733430b | 253 | \r |
254 | BaseTypes |= 2;\r | |
4c50c885 LG |
255 | break;\r |
256 | \r | |
8733430b | 257 | case 'R':\r |
258 | case 'r':\r | |
259 | if (BaseTypes & 4) {\r | |
fd23b925 | 260 | Usage ();\r |
8733430b | 261 | Error (NULL, 0, 0, argv[Index + 1], "-r RtBaseAddress may be specified only once");\r |
262 | return STATUS_ERROR;\r | |
263 | }\r | |
264 | \r | |
265 | Status = AsciiStringToUint64 (argv[Index + 1], FALSE, &RtBase);\r | |
266 | if (EFI_ERROR (Status)) {\r | |
fd23b925 | 267 | Usage ();\r |
8733430b | 268 | Error (NULL, 0, 0, argv[Index + 1], "invalid hex digit given for RT_DRIVER base address");\r |
5049fd31 | 269 | return STATUS_ERROR;\r |
270 | }\r | |
8733430b | 271 | \r |
272 | BaseTypes |= 4;\r | |
5049fd31 | 273 | break;\r |
274 | \r | |
d25c4bf0 | 275 | default:\r |
fd23b925 | 276 | Usage ();\r |
d25c4bf0 | 277 | Error (NULL, 0, 0, argv[Index], "unrecognized argument");\r |
278 | return STATUS_ERROR;\r | |
279 | break;\r | |
280 | }\r | |
281 | }\r | |
5b664244 | 282 | \r |
d25c4bf0 | 283 | //\r |
284 | // Open the file containing the FV\r | |
285 | //\r | |
286 | InputFile = fopen (InputFileName, "rb");\r | |
287 | if (InputFile == NULL) {\r | |
288 | Error (NULL, 0, 0, InputFileName, "could not open input file for reading");\r | |
289 | return STATUS_ERROR;\r | |
290 | }\r | |
8733430b | 291 | \r |
292 | //\r | |
293 | // Open the log file\r | |
294 | //\r | |
295 | strcat (InputFileName, ".log");\r | |
296 | LogFile = fopen (InputFileName, "a");\r | |
297 | if (LogFile == NULL) {\r | |
298 | Error (NULL, 0, 0, InputFileName, "could not append to log file");\r | |
299 | }\r | |
300 | \r | |
d25c4bf0 | 301 | //\r |
302 | // Determine size of FV\r | |
303 | //\r | |
304 | Status = ReadHeader (InputFile, &FvSize, &ErasePolarity);\r | |
305 | if (EFI_ERROR (Status)) {\r | |
306 | Error (NULL, 0, 0, "could not parse the FV header", NULL);\r | |
307 | goto Finish;\r | |
308 | }\r | |
309 | //\r | |
310 | // Allocate a buffer for the FV image\r | |
311 | //\r | |
312 | FvImage = malloc (FvSize);\r | |
313 | if (FvImage == NULL) {\r | |
314 | Error (NULL, 0, 0, "application error", "memory allocation failed");\r | |
315 | goto Finish;\r | |
316 | }\r | |
317 | //\r | |
318 | // Read the entire FV to the buffer\r | |
319 | //\r | |
320 | BytesRead = fread (FvImage, 1, FvSize, InputFile);\r | |
321 | fclose (InputFile);\r | |
322 | InputFile = NULL;\r | |
323 | if ((unsigned int) BytesRead != FvSize) {\r | |
324 | Error (NULL, 0, 0, InputFileName, "failed to read from file");\r | |
325 | goto Finish;\r | |
326 | }\r | |
327 | //\r | |
328 | // Prepare to walk the FV image\r | |
329 | //\r | |
330 | InitializeFvLib (FvImage, FvSize);\r | |
331 | //\r | |
332 | // Get the first file\r | |
333 | //\r | |
334 | Status = GetNextFile (NULL, &CurrentFile);\r | |
335 | if (EFI_ERROR (Status)) {\r | |
336 | Error (NULL, 0, 0, "cannot find the first file in the FV image", NULL);\r | |
337 | goto Finish;\r | |
338 | }\r | |
339 | //\r | |
340 | // Check if each file should be rebased\r | |
341 | //\r | |
342 | while (CurrentFile != NULL) {\r | |
343 | //\r | |
344 | // Rebase this file\r | |
345 | //\r | |
8733430b | 346 | FfsRebase (\r |
347 | CurrentFile,\r | |
348 | BaseTypes,\r | |
349 | XipBase + (UINTN)CurrentFile - (UINTN)FvImage,\r | |
350 | &BsBase,\r | |
351 | &RtBase,\r | |
352 | LogFile\r | |
353 | );\r | |
d25c4bf0 | 354 | \r |
355 | if (EFI_ERROR (Status)) {\r | |
356 | switch (Status) {\r | |
357 | \r | |
358 | case EFI_INVALID_PARAMETER:\r | |
359 | Error (NULL, 0, 0, "invalid parameter passed to FfsRebase", NULL);\r | |
360 | break;\r | |
361 | \r | |
362 | case EFI_ABORTED:\r | |
363 | Error (NULL, 0, 0, "error detected while rebasing -- aborted", NULL);\r | |
364 | break;\r | |
365 | \r | |
366 | case EFI_OUT_OF_RESOURCES:\r | |
367 | Error (NULL, 0, 0, "FfsRebase could not allocate required resources", NULL);\r | |
368 | break;\r | |
369 | \r | |
370 | case EFI_NOT_FOUND:\r | |
371 | Error (NULL, 0, 0, "FfsRebase could not locate a PE32 section", NULL);\r | |
372 | break;\r | |
373 | \r | |
374 | default:\r | |
375 | Error (NULL, 0, 0, "FfsRebase returned unknown status", "status=0x%08X", Status);\r | |
376 | break;\r | |
377 | }\r | |
378 | \r | |
379 | goto Finish;\r | |
380 | }\r | |
381 | //\r | |
382 | // Get the next file\r | |
383 | //\r | |
384 | Status = GetNextFile (CurrentFile, &CurrentFile);\r | |
385 | if (EFI_ERROR (Status)) {\r | |
386 | Error (NULL, 0, 0, "cannot find the next file in the FV image", NULL);\r | |
387 | goto Finish;\r | |
388 | }\r | |
389 | }\r | |
390 | //\r | |
391 | // Open the output file\r | |
392 | //\r | |
393 | OutputFile = fopen (OutputFileName, "wb");\r | |
394 | if (OutputFile == NULL) {\r | |
395 | Error (NULL, 0, 0, OutputFileName, "failed to open output file");\r | |
396 | goto Finish;\r | |
397 | }\r | |
398 | \r | |
399 | if (fwrite (FvImage, 1, FvSize, OutputFile) != FvSize) {\r | |
400 | Error (NULL, 0, 0, "failed to write to output file", 0);\r | |
401 | goto Finish;\r | |
402 | }\r | |
403 | \r | |
404 | Finish:\r | |
405 | if (InputFile != NULL) {\r | |
406 | fclose (InputFile);\r | |
407 | }\r | |
408 | //\r | |
409 | // If we created an output file, and there was an error, remove it so\r | |
410 | // subsequent builds will rebuild it.\r | |
411 | //\r | |
412 | if (OutputFile != NULL) {\r | |
413 | if (GetUtilityStatus () == STATUS_ERROR) {\r | |
414 | remove (OutputFileName);\r | |
415 | }\r | |
416 | \r | |
417 | fclose (OutputFile);\r | |
418 | }\r | |
419 | \r | |
8733430b | 420 | if (LogFile != NULL) {\r |
421 | fclose (LogFile);\r | |
5049fd31 | 422 | }\r |
423 | \r | |
d25c4bf0 | 424 | if (FvImage != NULL) {\r |
425 | free (FvImage);\r | |
426 | }\r | |
427 | \r | |
428 | return GetUtilityStatus ();\r | |
429 | }\r | |
430 | \r | |
431 | EFI_STATUS\r | |
432 | ReadHeader (\r | |
433 | IN FILE *InputFile,\r | |
434 | OUT UINT32 *FvSize,\r | |
435 | OUT BOOLEAN *ErasePolarity\r | |
436 | )\r | |
437 | /*++\r | |
438 | \r | |
439 | Routine Description:\r | |
440 | \r | |
8733430b | 441 | This function determines the size of the FV and the erase polarity. The\r |
d25c4bf0 | 442 | erase polarity is the FALSE value for file state.\r |
443 | \r | |
444 | Arguments:\r | |
445 | \r | |
446 | InputFile The file that contains the FV image.\r | |
447 | FvSize The size of the FV.\r | |
448 | ErasePolarity The FV erase polarity.\r | |
8733430b | 449 | \r |
d25c4bf0 | 450 | Returns:\r |
8733430b | 451 | \r |
d25c4bf0 | 452 | EFI_SUCCESS Function completed successfully.\r |
453 | EFI_INVALID_PARAMETER A required parameter was NULL or is out of range.\r | |
454 | EFI_ABORTED The function encountered an error.\r | |
455 | \r | |
456 | --*/\r | |
457 | {\r | |
458 | EFI_FIRMWARE_VOLUME_HEADER VolumeHeader;\r | |
459 | EFI_FV_BLOCK_MAP_ENTRY BlockMap;\r | |
460 | UINTN Signature[2];\r | |
461 | UINTN BytesRead;\r | |
462 | UINT32 Size;\r | |
463 | \r | |
464 | BytesRead = 0;\r | |
465 | Size = 0;\r | |
466 | //\r | |
467 | // Check input parameters\r | |
468 | //\r | |
469 | if ((InputFile == NULL) || (FvSize == NULL) || (ErasePolarity == NULL)) {\r | |
470 | Error (NULL, 0, 0, "ReadHeader()", "invalid input parameter");\r | |
471 | return EFI_INVALID_PARAMETER;\r | |
472 | }\r | |
473 | //\r | |
474 | // Read the header\r | |
475 | //\r | |
476 | fread (&VolumeHeader, sizeof (EFI_FIRMWARE_VOLUME_HEADER) - sizeof (EFI_FV_BLOCK_MAP_ENTRY), 1, InputFile);\r | |
477 | BytesRead = sizeof (EFI_FIRMWARE_VOLUME_HEADER) - sizeof (EFI_FV_BLOCK_MAP_ENTRY);\r | |
478 | Signature[0] = VolumeHeader.Signature;\r | |
479 | Signature[1] = 0;\r | |
480 | \r | |
481 | //\r | |
482 | // Get erase polarity\r | |
483 | //\r | |
484 | if (VolumeHeader.Attributes & EFI_FVB_ERASE_POLARITY) {\r | |
485 | *ErasePolarity = TRUE;\r | |
486 | }\r | |
487 | \r | |
488 | do {\r | |
489 | fread (&BlockMap, sizeof (EFI_FV_BLOCK_MAP_ENTRY), 1, InputFile);\r | |
490 | BytesRead += sizeof (EFI_FV_BLOCK_MAP_ENTRY);\r | |
491 | \r | |
492 | if (BlockMap.NumBlocks != 0) {\r | |
493 | Size += BlockMap.NumBlocks * BlockMap.BlockLength;\r | |
494 | }\r | |
495 | \r | |
496 | } while (!(BlockMap.NumBlocks == 0 && BlockMap.BlockLength == 0));\r | |
497 | \r | |
498 | if (VolumeHeader.FvLength != Size) {\r | |
499 | Error (NULL, 0, 0, "volume size not consistant with block maps", NULL);\r | |
500 | return EFI_ABORTED;\r | |
501 | }\r | |
502 | \r | |
503 | *FvSize = Size;\r | |
504 | \r | |
505 | rewind (InputFile);\r | |
506 | \r | |
507 | return EFI_SUCCESS;\r | |
508 | }\r | |
509 | \r | |
510 | VOID\r | |
fd23b925 | 511 | Version (\r |
d25c4bf0 | 512 | VOID\r |
513 | )\r | |
514 | /*++\r | |
515 | \r | |
516 | Routine Description:\r | |
517 | \r | |
518 | Displays the standard utility information to SDTOUT\r | |
519 | \r | |
520 | Arguments:\r | |
521 | \r | |
522 | None\r | |
523 | \r | |
524 | Returns:\r | |
525 | \r | |
526 | None\r | |
527 | \r | |
528 | --*/\r | |
529 | {\r | |
fd23b925 | 530 | printf ("%s v%d.%d -PEI Rebase Utility.\n", UTILITY_NAME, UTILITY_MAJOR_VERSION, UTILITY_MINOR_VERSION);\r |
531 | printf ("Copyright (c) 1999-2007 Intel Corporation. All rights reserved.\n");\r | |
d25c4bf0 | 532 | }\r |
533 | \r | |
534 | VOID\r | |
fd23b925 | 535 | Usage (\r |
d25c4bf0 | 536 | VOID\r |
537 | )\r | |
538 | /*++\r | |
539 | \r | |
540 | Routine Description:\r | |
541 | \r | |
542 | Displays the utility usage syntax to STDOUT\r | |
543 | \r | |
544 | Arguments:\r | |
545 | \r | |
546 | None\r | |
547 | \r | |
548 | Returns:\r | |
549 | \r | |
550 | None\r | |
551 | \r | |
552 | --*/\r | |
553 | {\r | |
fd23b925 | 554 | Version();\r |
555 | \r | |
d25c4bf0 | 556 | printf (\r |
5b664244 | 557 | "Usage: %s -I InputFileName -O OutputFileName -B BaseAddress [-F InputFvInfName]\n",\r |
d25c4bf0 | 558 | UTILITY_NAME\r |
559 | );\r | |
5b664244 | 560 | printf (" [-D BootDriverBaseAddress] [-R RuntimeDriverBaseAddress]\n");\r |
d25c4bf0 | 561 | printf (" Where:\n");\r |
5b664244 LG |
562 | printf (" InputFileName is the name of the EFI FV file to rebase.\n");\r |
563 | printf (" OutputFileName is the desired output file name.\n");\r | |
564 | printf (" BaseAddress is the rebase address for all drivers run in Flash.\n");\r | |
565 | printf (" InputFvInfName is the Fv.inf file that contains this FV base address to rebase against.\n");\r | |
566 | printf (" BootDriverBaseAddress is the rebase address for all boot drivers in this fv image.\n");\r | |
567 | printf (" RuntimeDriverBaseAddress is the rebase address for all runtime drivers in this fv image.\n");\r | |
568 | printf (" Argument pair may be in any order.\n\n");\r | |
d25c4bf0 | 569 | }\r |
570 | \r | |
571 | EFI_STATUS\r | |
572 | FfsRebase (\r | |
8733430b | 573 | IN OUT EFI_FFS_FILE_HEADER *FfsFile,\r |
574 | IN UINT32 Flags,\r | |
575 | IN OUT EFI_PHYSICAL_ADDRESS XipBase,\r | |
576 | IN OUT EFI_PHYSICAL_ADDRESS *BsBase,\r | |
577 | IN OUT EFI_PHYSICAL_ADDRESS *RtBase,\r | |
578 | OUT FILE *LogFile\r | |
d25c4bf0 | 579 | )\r |
580 | /*++\r | |
581 | \r | |
582 | Routine Description:\r | |
583 | \r | |
8733430b | 584 | This function determines if a file is XIP and should be rebased. It will\r |
d25c4bf0 | 585 | rebase any PE32 sections found in the file using the base address.\r |
8733430b | 586 | \r |
d25c4bf0 | 587 | Arguments:\r |
588 | \r | |
589 | FfsFile A pointer to Ffs file image.\r | |
590 | BaseAddress The base address to use for rebasing the file image.\r | |
591 | \r | |
592 | Returns:\r | |
593 | \r | |
594 | EFI_SUCCESS The image was properly rebased.\r | |
595 | EFI_INVALID_PARAMETER An input parameter is invalid.\r | |
596 | EFI_ABORTED An error occurred while rebasing the input file image.\r | |
597 | EFI_OUT_OF_RESOURCES Could not allocate a required resource.\r | |
598 | EFI_NOT_FOUND No compressed sections could be found.\r | |
599 | \r | |
600 | --*/\r | |
601 | {\r | |
602 | EFI_STATUS Status;\r | |
4df60ea5 | 603 | PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;\r |
8733430b | 604 | EFI_PHYSICAL_ADDRESS NewPe32BaseAddress;\r |
d25c4bf0 | 605 | UINTN Index;\r |
606 | EFI_FILE_SECTION_POINTER CurrentPe32Section;\r | |
607 | EFI_FFS_FILE_STATE SavedState;\r | |
8733430b | 608 | EFI_IMAGE_NT_HEADERS32 *PeHdr;\r |
d25c4bf0 | 609 | EFI_TE_IMAGE_HEADER *TEImageHeader;\r |
d25c4bf0 | 610 | UINT8 FileGuidString[80];\r |
611 | UINT32 TailSize;\r | |
612 | EFI_FFS_FILE_TAIL TailValue;\r | |
8733430b | 613 | EFI_PHYSICAL_ADDRESS *BaseToUpdate;\r |
5b664244 LG |
614 | EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;\r |
615 | \r | |
d25c4bf0 | 616 | \r |
617 | //\r | |
618 | // Verify input parameters\r | |
619 | //\r | |
620 | if (FfsFile == NULL) {\r | |
621 | return EFI_INVALID_PARAMETER;\r | |
622 | }\r | |
623 | //\r | |
624 | // Convert the GUID to a string so we can at least report which file\r | |
625 | // if we find an error.\r | |
626 | //\r | |
627 | PrintGuidToBuffer (&FfsFile->Name, FileGuidString, sizeof (FileGuidString), TRUE);\r | |
628 | if (FfsFile->Attributes & FFS_ATTRIB_TAIL_PRESENT) {\r | |
629 | TailSize = sizeof (EFI_FFS_FILE_TAIL);\r | |
630 | } else {\r | |
631 | TailSize = 0;\r | |
632 | }\r | |
633 | //\r | |
634 | // Do some cursory checks on the FFS file contents\r | |
635 | //\r | |
636 | Status = VerifyFfsFile (FfsFile);\r | |
637 | if (EFI_ERROR (Status)) {\r | |
638 | Error (NULL, 0, 0, "file does not appear to be a valid FFS file, cannot be rebased", FileGuidString);\r | |
639 | return EFI_INVALID_PARAMETER;\r | |
640 | }\r | |
5049fd31 | 641 | \r |
d25c4bf0 | 642 | //\r |
8733430b | 643 | // We only process files potentially containing PE32 sections.\r |
d25c4bf0 | 644 | //\r |
8733430b | 645 | switch (FfsFile->Type) {\r |
646 | case EFI_FV_FILETYPE_SECURITY_CORE:\r | |
647 | case EFI_FV_FILETYPE_PEI_CORE:\r | |
648 | case EFI_FV_FILETYPE_PEIM:\r | |
649 | case EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER:\r | |
650 | case EFI_FV_FILETYPE_DRIVER:\r | |
651 | case EFI_FV_FILETYPE_DXE_CORE:\r | |
652 | break;\r | |
653 | default:\r | |
654 | return EFI_SUCCESS;\r | |
d25c4bf0 | 655 | }\r |
5049fd31 | 656 | \r |
d25c4bf0 | 657 | //\r |
658 | // Rebase each PE32 section\r | |
659 | //\r | |
660 | Status = EFI_SUCCESS;\r | |
d25c4bf0 | 661 | for (Index = 1;; Index++) {\r |
662 | Status = GetSectionByType (FfsFile, EFI_SECTION_PE32, Index, &CurrentPe32Section);\r | |
663 | if (EFI_ERROR (Status)) {\r | |
664 | break;\r | |
665 | }\r | |
666 | \r | |
d25c4bf0 | 667 | //\r |
668 | // Initialize context\r | |
669 | //\r | |
670 | memset (&ImageContext, 0, sizeof (ImageContext));\r | |
671 | ImageContext.Handle = (VOID *) ((UINTN) CurrentPe32Section.Pe32Section + sizeof (EFI_PE32_SECTION));\r | |
4df60ea5 | 672 | ImageContext.ImageRead = (PE_COFF_LOADER_READ_FILE) FfsRebaseImageRead;\r |
4df60ea5 | 673 | Status = PeCoffLoaderGetImageInfo (&ImageContext);\r |
d25c4bf0 | 674 | if (EFI_ERROR (Status)) {\r |
675 | Error (NULL, 0, 0, "GetImageInfo() call failed on rebase", FileGuidString);\r | |
676 | return Status;\r | |
677 | }\r | |
8733430b | 678 | \r |
5b664244 LG |
679 | //\r |
680 | // Don't Load PeImage, only to relocate current image.\r | |
681 | //\r | |
682 | ImageContext.ImageAddress = (UINTN) CurrentPe32Section.Pe32Section + sizeof (EFI_PE32_SECTION);\r | |
683 | \r | |
684 | //\r | |
685 | // Check if section-alignment and file-alignment match or not\r | |
686 | //\r | |
687 | PeHdr = (EFI_IMAGE_NT_HEADERS *)((UINTN)ImageContext.ImageAddress + ImageContext.PeCoffHeaderOffset);\r | |
688 | if (PeHdr->OptionalHeader.SectionAlignment != PeHdr->OptionalHeader.FileAlignment) {\r | |
689 | //\r | |
690 | // Nor XIP module can be ignored. \r | |
691 | //\r | |
692 | if ((Flags & 1) == 0) {\r | |
693 | continue;\r | |
694 | }\r | |
695 | Error (NULL, 0, 0, "Section-Alignment and File-Alignment does not match", FileGuidString);\r | |
696 | return EFI_ABORTED;\r | |
697 | } \r | |
698 | \r | |
699 | //\r | |
700 | // Update CodeView and PdbPointer in ImageContext\r | |
701 | //\r | |
702 | DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)(UINTN)(\r | |
703 | ImageContext.ImageAddress +\r | |
704 | ImageContext.DebugDirectoryEntryRva\r | |
705 | );\r | |
706 | ImageContext.CodeView = (VOID *)(UINTN)( \r | |
707 | ImageContext.ImageAddress + \r | |
708 | DebugEntry->RVA\r | |
709 | );\r | |
710 | switch (*(UINT32 *) ImageContext.CodeView) {\r | |
711 | case CODEVIEW_SIGNATURE_NB10:\r | |
712 | ImageContext.PdbPointer = (CHAR8 *) ImageContext.CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY);\r | |
713 | break;\r | |
714 | \r | |
715 | case CODEVIEW_SIGNATURE_RSDS:\r | |
716 | ImageContext.PdbPointer = (CHAR8 *) ImageContext.CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY);\r | |
717 | break;\r | |
718 | \r | |
719 | default:\r | |
720 | break;\r | |
721 | }\r | |
722 | \r | |
8733430b | 723 | //\r |
724 | // Calculate the PE32 base address, based on file type\r | |
725 | //\r | |
726 | switch (FfsFile->Type) {\r | |
727 | case EFI_FV_FILETYPE_SECURITY_CORE:\r | |
728 | case EFI_FV_FILETYPE_PEI_CORE:\r | |
729 | case EFI_FV_FILETYPE_PEIM:\r | |
730 | case EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER:\r | |
731 | if ((Flags & 1) == 0) {\r | |
732 | //\r | |
733 | // We aren't relocating XIP code, so skip it.\r | |
734 | //\r | |
735 | return EFI_SUCCESS;\r | |
736 | }\r | |
737 | \r | |
738 | NewPe32BaseAddress =\r | |
5b664244 | 739 | XipBase + (UINTN)ImageContext.ImageAddress - (UINTN)FfsFile;\r |
8733430b | 740 | BaseToUpdate = &XipBase;\r |
741 | break;\r | |
742 | \r | |
743 | case EFI_FV_FILETYPE_DRIVER:\r | |
5b664244 | 744 | PeHdr = (EFI_IMAGE_NT_HEADERS32*)(ImageContext.ImageAddress + ImageContext.PeCoffHeaderOffset);\r |
8733430b | 745 | switch (PeHdr->OptionalHeader.Subsystem) {\r |
746 | case EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER:\r | |
747 | if ((Flags & 4) == 0) {\r | |
748 | //\r | |
749 | // RT drivers aren't supposed to be relocated\r | |
750 | //\r | |
751 | continue;\r | |
752 | }\r | |
753 | \r | |
754 | NewPe32BaseAddress = *RtBase;\r | |
755 | BaseToUpdate = RtBase;\r | |
756 | break;\r | |
757 | \r | |
758 | default:\r | |
759 | //\r | |
760 | // We treat all other subsystems the same as BS_DRIVER\r | |
761 | //\r | |
762 | if ((Flags & 2) == 0) {\r | |
763 | //\r | |
764 | // Skip all BS_DRIVER's\r | |
765 | //\r | |
766 | continue;\r | |
767 | }\r | |
768 | \r | |
769 | NewPe32BaseAddress = *BsBase;\r | |
770 | BaseToUpdate = BsBase;\r | |
771 | break;\r | |
772 | }\r | |
773 | break;\r | |
774 | \r | |
775 | case EFI_FV_FILETYPE_DXE_CORE:\r | |
776 | if ((Flags & 2) == 0) {\r | |
777 | //\r | |
778 | // Skip DXE core\r | |
779 | //\r | |
780 | return EFI_SUCCESS;\r | |
781 | }\r | |
782 | \r | |
783 | NewPe32BaseAddress = *BsBase;\r | |
784 | BaseToUpdate = BsBase;\r | |
785 | break;\r | |
786 | \r | |
787 | default:\r | |
788 | //\r | |
789 | // Not supported file type\r | |
790 | //\r | |
791 | return EFI_SUCCESS;\r | |
792 | }\r | |
793 | \r | |
d25c4bf0 | 794 | ImageContext.DestinationAddress = NewPe32BaseAddress;\r |
4df60ea5 | 795 | Status = PeCoffLoaderRelocateImage (&ImageContext);\r |
d25c4bf0 | 796 | if (EFI_ERROR (Status)) {\r |
797 | Error (NULL, 0, 0, "RelocateImage() call failed on rebase", FileGuidString);\r | |
d25c4bf0 | 798 | return Status;\r |
799 | }\r | |
800 | \r | |
8733430b | 801 | //\r |
802 | // Update BASE address\r | |
803 | //\r | |
804 | fprintf (\r | |
805 | LogFile,\r | |
a3ab2a47 | 806 | "%s %016I64X %s\n",\r |
8733430b | 807 | FileGuidString,\r |
a3ab2a47 | 808 | ImageContext.DestinationAddress,\r |
809 | ImageContext.PdbPointer == NULL ? "*" : ImageContext.PdbPointer\r | |
8733430b | 810 | );\r |
811 | *BaseToUpdate += EFI_SIZE_TO_PAGES (ImageContext.ImageSize) * EFI_PAGE_SIZE;\r | |
812 | \r | |
d25c4bf0 | 813 | //\r |
814 | // Now update file checksum\r | |
815 | //\r | |
816 | if (FfsFile->Attributes & FFS_ATTRIB_TAIL_PRESENT) {\r | |
817 | TailSize = sizeof (EFI_FFS_FILE_TAIL);\r | |
818 | } else {\r | |
819 | TailSize = 0;\r | |
820 | }\r | |
821 | \r | |
822 | if (FfsFile->Attributes & FFS_ATTRIB_CHECKSUM) {\r | |
823 | SavedState = FfsFile->State;\r | |
824 | FfsFile->IntegrityCheck.Checksum.File = 0;\r | |
825 | FfsFile->State = 0;\r | |
826 | if (FfsFile->Attributes & FFS_ATTRIB_CHECKSUM) {\r | |
827 | FfsFile->IntegrityCheck.Checksum.File = CalculateChecksum8 (\r | |
828 | (UINT8 *) FfsFile,\r | |
829 | GetLength (FfsFile->Size) - TailSize\r | |
830 | );\r | |
831 | } else {\r | |
832 | FfsFile->IntegrityCheck.Checksum.File = FFS_FIXED_CHECKSUM;\r | |
833 | }\r | |
834 | \r | |
835 | FfsFile->State = SavedState;\r | |
836 | }\r | |
837 | //\r | |
838 | // Update tail if present\r | |
839 | //\r | |
840 | if (FfsFile->Attributes & FFS_ATTRIB_TAIL_PRESENT) {\r | |
841 | TailValue = (EFI_FFS_FILE_TAIL) (~(FfsFile->IntegrityCheck.TailReference));\r | |
842 | *(EFI_FFS_FILE_TAIL *) (((UINTN) FfsFile + GetLength (FfsFile->Size) - sizeof (EFI_FFS_FILE_TAIL))) = TailValue;\r | |
843 | }\r | |
844 | }\r | |
8733430b | 845 | \r |
846 | if ((Flags & 1) == 0 || (\r | |
847 | FfsFile->Type != EFI_FV_FILETYPE_SECURITY_CORE &&\r | |
848 | FfsFile->Type != EFI_FV_FILETYPE_PEI_CORE &&\r | |
849 | \r | |
850 | FfsFile->Type != EFI_FV_FILETYPE_PEIM &&\r | |
851 | FfsFile->Type != EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER\r | |
852 | )) {\r | |
853 | //\r | |
854 | // Only XIP code may have a TE section\r | |
855 | //\r | |
856 | return EFI_SUCCESS;\r | |
857 | }\r | |
5b664244 | 858 | \r |
d25c4bf0 | 859 | //\r |
860 | // Now process TE sections\r | |
861 | //\r | |
862 | for (Index = 1;; Index++) {\r | |
863 | Status = GetSectionByType (FfsFile, EFI_SECTION_TE, Index, &CurrentPe32Section);\r | |
864 | if (EFI_ERROR (Status)) {\r | |
865 | break;\r | |
866 | }\r | |
867 | \r | |
d25c4bf0 | 868 | //\r |
869 | // Calculate the TE base address, the FFS file base plus the offset of the TE section less the size stripped off\r | |
870 | // by GenTEImage\r | |
871 | //\r | |
872 | TEImageHeader = (EFI_TE_IMAGE_HEADER *) ((UINT8 *) CurrentPe32Section.Pe32Section + sizeof (EFI_COMMON_SECTION_HEADER));\r | |
873 | \r | |
d25c4bf0 | 874 | //\r |
5b664244 | 875 | // Initialize context, load image info.\r |
d25c4bf0 | 876 | //\r |
877 | memset (&ImageContext, 0, sizeof (ImageContext));\r | |
5b664244 | 878 | ImageContext.Handle = (VOID *) TEImageHeader;\r |
4df60ea5 | 879 | ImageContext.ImageRead = (PE_COFF_LOADER_READ_FILE) FfsRebaseImageRead;\r |
d25c4bf0 | 880 | \r |
4df60ea5 | 881 | Status = PeCoffLoaderGetImageInfo (&ImageContext);\r |
d25c4bf0 | 882 | \r |
883 | if (EFI_ERROR (Status)) {\r | |
884 | Error (NULL, 0, 0, "GetImageInfo() call failed on rebase of TE image", FileGuidString);\r | |
d25c4bf0 | 885 | return Status;\r |
886 | }\r | |
887 | //\r | |
5b664244 | 888 | // Don't reload TeImage\r |
d25c4bf0 | 889 | //\r |
5b664244 | 890 | ImageContext.ImageAddress = (UINTN) TEImageHeader;\r |
d25c4bf0 | 891 | \r |
5b664244 LG |
892 | //\r |
893 | // Update CodeView and PdbPointer in ImageContext\r | |
894 | //\r | |
895 | DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)(UINTN)(\r | |
896 | ImageContext.ImageAddress +\r | |
897 | ImageContext.DebugDirectoryEntryRva +\r | |
898 | sizeof(EFI_TE_IMAGE_HEADER) -\r | |
899 | TEImageHeader->StrippedSize\r | |
900 | );\r | |
901 | \r | |
902 | ImageContext.CodeView = (VOID *)(UINTN)(\r | |
903 | ImageContext.ImageAddress +\r | |
904 | DebugEntry->RVA +\r | |
905 | sizeof(EFI_TE_IMAGE_HEADER) -\r | |
906 | TEImageHeader->StrippedSize\r | |
907 | );\r | |
908 | \r | |
909 | switch (*(UINT32 *) ImageContext.CodeView) {\r | |
910 | case CODEVIEW_SIGNATURE_NB10:\r | |
911 | ImageContext.PdbPointer = (CHAR8 *) ImageContext.CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY);\r | |
912 | break;\r | |
913 | \r | |
914 | case CODEVIEW_SIGNATURE_RSDS:\r | |
915 | ImageContext.PdbPointer = (CHAR8 *) ImageContext.CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY);\r | |
916 | break;\r | |
917 | \r | |
918 | default:\r | |
919 | break;\r | |
d25c4bf0 | 920 | }\r |
921 | \r | |
5b664244 LG |
922 | //\r |
923 | // Reloacate TeImage\r | |
924 | // \r | |
925 | ImageContext.DestinationAddress = XipBase + (UINTN) TEImageHeader + sizeof (EFI_TE_IMAGE_HEADER) \\r | |
926 | - TEImageHeader->StrippedSize - (UINTN) FfsFile;\r | |
4df60ea5 | 927 | Status = PeCoffLoaderRelocateImage (&ImageContext);\r |
d25c4bf0 | 928 | if (EFI_ERROR (Status)) {\r |
929 | Error (NULL, 0, 0, "RelocateImage() call failed on rebase of TE image", FileGuidString);\r | |
d25c4bf0 | 930 | return Status;\r |
931 | }\r | |
932 | \r | |
d25c4bf0 | 933 | if (FfsFile->Attributes & FFS_ATTRIB_TAIL_PRESENT) {\r |
934 | TailSize = sizeof (EFI_FFS_FILE_TAIL);\r | |
935 | } else {\r | |
936 | TailSize = 0;\r | |
937 | }\r | |
938 | //\r | |
939 | // Now update file checksum\r | |
940 | //\r | |
941 | if (FfsFile->Attributes & FFS_ATTRIB_CHECKSUM) {\r | |
942 | SavedState = FfsFile->State;\r | |
943 | FfsFile->IntegrityCheck.Checksum.File = 0;\r | |
944 | FfsFile->State = 0;\r | |
945 | if (FfsFile->Attributes & FFS_ATTRIB_CHECKSUM) {\r | |
946 | FfsFile->IntegrityCheck.Checksum.File = CalculateChecksum8 (\r | |
947 | (UINT8 *) FfsFile,\r | |
948 | GetLength (FfsFile->Size) - TailSize\r | |
949 | );\r | |
950 | } else {\r | |
951 | FfsFile->IntegrityCheck.Checksum.File = FFS_FIXED_CHECKSUM;\r | |
952 | }\r | |
953 | \r | |
954 | FfsFile->State = SavedState;\r | |
955 | }\r | |
956 | //\r | |
957 | // Update tail if present\r | |
958 | //\r | |
959 | if (FfsFile->Attributes & FFS_ATTRIB_TAIL_PRESENT) {\r | |
960 | TailValue = (EFI_FFS_FILE_TAIL) (~(FfsFile->IntegrityCheck.TailReference));\r | |
961 | *(EFI_FFS_FILE_TAIL *) (((UINTN) FfsFile + GetLength (FfsFile->Size) - sizeof (EFI_FFS_FILE_TAIL))) = TailValue;\r | |
962 | }\r | |
8733430b | 963 | \r |
964 | fprintf (\r | |
965 | LogFile,\r | |
a3ab2a47 | 966 | "%s %016I64X %s\n",\r |
8733430b | 967 | FileGuidString,\r |
a3ab2a47 | 968 | ImageContext.DestinationAddress,\r |
969 | ImageContext.PdbPointer == NULL ? "*" : ImageContext.PdbPointer\r | |
8733430b | 970 | );\r |
d25c4bf0 | 971 | }\r |
5b664244 | 972 | \r |
d25c4bf0 | 973 | return EFI_SUCCESS;\r |
974 | }\r | |
975 | \r | |
976 | EFI_STATUS\r | |
977 | FfsRebaseImageRead (\r | |
978 | IN VOID *FileHandle,\r | |
979 | IN UINTN FileOffset,\r | |
980 | IN OUT UINT32 *ReadSize,\r | |
981 | OUT VOID *Buffer\r | |
982 | )\r | |
983 | /*++\r | |
984 | \r | |
985 | Routine Description:\r | |
986 | \r | |
987 | Support routine for the PE/COFF Loader that reads a buffer from a PE/COFF file\r | |
988 | \r | |
989 | Arguments:\r | |
990 | \r | |
991 | FileHandle - The handle to the PE/COFF file\r | |
992 | \r | |
993 | FileOffset - The offset, in bytes, into the file to read\r | |
994 | \r | |
995 | ReadSize - The number of bytes to read from the file starting at FileOffset\r | |
996 | \r | |
997 | Buffer - A pointer to the buffer to read the data into.\r | |
998 | \r | |
999 | Returns:\r | |
1000 | \r | |
1001 | EFI_SUCCESS - ReadSize bytes of data were read into Buffer from the PE/COFF file starting at FileOffset\r | |
1002 | \r | |
1003 | --*/\r | |
1004 | {\r | |
1005 | CHAR8 *Destination8;\r | |
1006 | CHAR8 *Source8;\r | |
1007 | UINT32 Length;\r | |
1008 | \r | |
1009 | Destination8 = Buffer;\r | |
1010 | Source8 = (CHAR8 *) ((UINTN) FileHandle + FileOffset);\r | |
1011 | Length = *ReadSize;\r | |
1012 | while (Length--) {\r | |
1013 | *(Destination8++) = *(Source8++);\r | |
1014 | }\r | |
1015 | \r | |
1016 | return EFI_SUCCESS;\r | |
1017 | }\r |