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c8ec22a2 JY |
1 | ## @ PatchFv.py\r |
2 | #\r | |
9da59186 | 3 | # Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>\r |
c8ec22a2 JY |
4 | # This program and the accompanying materials are licensed and made available under\r |
5 | # the terms and conditions of the BSD License that accompanies this distribution.\r | |
6 | # 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 | |
11 | #\r | |
12 | ##\r | |
13 | \r | |
14 | import os\r | |
15 | import re\r | |
16 | import sys\r | |
17 | \r | |
18 | def readDataFromFile (binfile, offset, len=1):\r | |
19 | fd = open(binfile, "r+b")\r | |
20 | fsize = os.path.getsize(binfile)\r | |
21 | offval = offset & 0xFFFFFFFF\r | |
22 | if (offval & 0x80000000):\r | |
23 | offval = fsize - (0xFFFFFFFF - offval + 1)\r | |
24 | fd.seek(offval)\r | |
25 | bytearray = [ord(b) for b in fd.read(len)]\r | |
9da59186 JY |
26 | value = 0\r |
27 | idx = len - 1\r | |
c8ec22a2 JY |
28 | while idx >= 0:\r |
29 | value = value << 8 | bytearray[idx]\r | |
30 | idx = idx - 1\r | |
31 | fd.close()\r | |
32 | return value\r | |
33 | \r | |
9da59186 JY |
34 | def IsFspHeaderValid (binfile):\r |
35 | fd = open (binfile, "rb")\r | |
36 | bindat = fd.read(0x200)\r | |
37 | fd.close()\r | |
38 | HeaderList = ['FSPH' , 'FSPP' , 'FSPE']\r | |
39 | OffsetList = []\r | |
40 | for each in HeaderList:\r | |
41 | if each in bindat:\r | |
42 | idx = bindat.index(each)\r | |
43 | else:\r | |
44 | idx = 0\r | |
45 | OffsetList.append(idx)\r | |
46 | if not OffsetList[0] or not OffsetList[1]:\r | |
47 | return False\r | |
48 | Revision = ord(bindat[OffsetList[0] + 0x0B])\r | |
49 | if Revision > 1 and not OffsetList[2]:\r | |
50 | return False\r | |
51 | return True\r | |
52 | \r | |
c8ec22a2 JY |
53 | def patchDataInFile (binfile, offset, value, len=1):\r |
54 | fd = open(binfile, "r+b")\r | |
55 | fsize = os.path.getsize(binfile)\r | |
56 | offval = offset & 0xFFFFFFFF\r | |
57 | if (offval & 0x80000000):\r | |
58 | offval = fsize - (0xFFFFFFFF - offval + 1)\r | |
59 | bytearray = []\r | |
9da59186 | 60 | idx = 0\r |
c8ec22a2 JY |
61 | while idx < len:\r |
62 | bytearray.append(value & 0xFF)\r | |
63 | value = value >> 8\r | |
64 | idx = idx + 1\r | |
65 | fd.seek(offval)\r | |
66 | fd.write("".join(chr(b) for b in bytearray))\r | |
67 | fd.close()\r | |
9da59186 | 68 | return len\r |
c8ec22a2 JY |
69 | \r |
70 | \r | |
71 | class Symbols:\r | |
72 | def __init__(self):\r | |
73 | self.dictSymbolAddress = {}\r | |
74 | self.dictGuidNameXref = {}\r | |
75 | self.dictFfsOffset = {}\r | |
76 | self.dictVariable = {}\r | |
77 | self.dictModBase = {}\r | |
78 | self.fdFile = None\r | |
79 | self.string = ""\r | |
80 | self.fdBase = 0xFFFFFFFF\r | |
81 | self.fdSize = 0\r | |
82 | self.index = 0\r | |
83 | self.parenthesisOpenSet = '([{<'\r | |
84 | self.parenthesisCloseSet = ')]}>'\r | |
85 | \r | |
86 | def getFdFile (self):\r | |
87 | return self.fdFile\r | |
88 | \r | |
89 | def getFdSize (self):\r | |
90 | return self.fdSize\r | |
91 | \r | |
92 | def createDicts (self, fvDir, fvNames):\r | |
93 | if not os.path.isdir(fvDir):\r | |
94 | raise Exception ("'%s' is not a valid directory!" % FvDir)\r | |
95 | \r | |
96 | xrefFile = os.path.join(fvDir, "Guid.xref")\r | |
97 | if not os.path.exists(xrefFile):\r | |
98 | raise Exception("Cannot open GUID Xref file '%s'!" % xrefFile)\r | |
99 | \r | |
100 | self.dictGuidNameXref = {}\r | |
101 | self.parseGuidXrefFile(xrefFile)\r | |
102 | \r | |
103 | fvList = fvNames.split(":")\r | |
104 | fdBase = fvList.pop()\r | |
105 | if len(fvList) == 0:\r | |
106 | fvList.append(fdBase)\r | |
107 | \r | |
108 | fdFile = os.path.join(fvDir, fdBase.strip() + ".fd")\r | |
109 | if not os.path.exists(fdFile):\r | |
110 | raise Exception("Cannot open FD file '%s'!" % fdFile)\r | |
111 | \r | |
112 | self.fdFile = fdFile\r | |
113 | self.fdSize = os.path.getsize(fdFile)\r | |
114 | \r | |
115 | infFile = os.path.join(fvDir, fvList[0].strip()) + ".inf"\r | |
116 | if not os.path.exists(infFile):\r | |
117 | raise Exception("Cannot open INF file '%s'!" % infFile)\r | |
118 | \r | |
119 | self.parseInfFile(infFile)\r | |
120 | \r | |
121 | self.dictVariable = {}\r | |
122 | self.dictVariable["FDSIZE"] = self.fdSize\r | |
123 | self.dictVariable["FDBASE"] = self.fdBase\r | |
124 | \r | |
125 | self.dictSymbolAddress = {}\r | |
126 | self.dictFfsOffset = {}\r | |
127 | for file in fvList:\r | |
128 | \r | |
129 | fvFile = os.path.join(fvDir, file.strip()) + ".Fv"\r | |
130 | mapFile = fvFile + ".map"\r | |
131 | if not os.path.exists(mapFile):\r | |
132 | raise Exception("Cannot open MAP file '%s'!" % mapFile)\r | |
133 | \r | |
134 | self.parseFvMapFile(mapFile)\r | |
135 | \r | |
136 | fvTxtFile = fvFile + ".txt"\r | |
137 | if not os.path.exists(fvTxtFile):\r | |
138 | raise Exception("Cannot open FV TXT file '%s'!" % fvTxtFile)\r | |
139 | \r | |
140 | self.parseFvTxtFile(fvTxtFile)\r | |
141 | \r | |
142 | ffsDir = os.path.join(fvDir, "Ffs")\r | |
143 | if (os.path.isdir(ffsDir)):\r | |
144 | for item in os.listdir(ffsDir):\r | |
145 | if len(item) <= 0x24:\r | |
146 | continue\r | |
147 | mapFile =os.path.join(ffsDir, item, "%s.map" % item[0:0x24])\r | |
148 | if not os.path.exists(mapFile):\r | |
149 | continue\r | |
150 | self.parseModMapFile(item[0x24:], mapFile)\r | |
151 | \r | |
152 | return 0\r | |
153 | \r | |
154 | def getFvOffsetInFd(self, fvFile):\r | |
155 | fvHandle = open(fvFile, "r+b")\r | |
156 | fdHandle = open(self.fdFile, "r+b")\r | |
157 | offset = fdHandle.read().find(fvHandle.read(0x70))\r | |
158 | fvHandle.close()\r | |
159 | fdHandle.close()\r | |
160 | if offset == -1:\r | |
161 | raise Exception("Could not locate FV file %s in FD!" % fvFile)\r | |
162 | return offset\r | |
163 | \r | |
164 | def parseInfFile(self, infFile):\r | |
165 | fvOffset = self.getFvOffsetInFd(infFile[0:-4] + ".Fv")\r | |
166 | fdIn = open(infFile, "r")\r | |
167 | rptLine = fdIn.readline()\r | |
168 | self.fdBase = 0xFFFFFFFF\r | |
169 | while (rptLine != "" ):\r | |
170 | #EFI_BASE_ADDRESS = 0xFFFDF400\r | |
171 | match = re.match("^EFI_BASE_ADDRESS\s*=\s*(0x[a-fA-F0-9]+)", rptLine)\r | |
172 | if match is not None:\r | |
173 | self.fdBase = int(match.group(1), 16) - fvOffset\r | |
174 | rptLine = fdIn.readline()\r | |
175 | fdIn.close()\r | |
176 | if self.fdBase == 0xFFFFFFFF:\r | |
177 | raise Exception("Could not find EFI_BASE_ADDRESS in INF file!" % fvFile)\r | |
178 | return 0\r | |
179 | \r | |
180 | def parseFvTxtFile(self, fvTxtFile):\r | |
181 | fvOffset = self.getFvOffsetInFd(fvTxtFile[0:-4])\r | |
182 | fdIn = open(fvTxtFile, "r")\r | |
183 | rptLine = fdIn.readline()\r | |
184 | while (rptLine != "" ):\r | |
185 | match = re.match("(0x[a-fA-F0-9]+)\s([0-9a-fA-F\-]+)", rptLine)\r | |
186 | if match is not None:\r | |
187 | self.dictFfsOffset[match.group(2)] = "0x%08X" % (int(match.group(1), 16) + fvOffset)\r | |
188 | rptLine = fdIn.readline()\r | |
189 | fdIn.close()\r | |
190 | return 0\r | |
191 | \r | |
192 | def parseFvMapFile(self, mapFile):\r | |
193 | fdIn = open(mapFile, "r")\r | |
194 | rptLine = fdIn.readline()\r | |
195 | modName = ""\r | |
196 | while (rptLine != "" ):\r | |
197 | if rptLine[0] != ' ':\r | |
198 | #DxeIpl (Fixed Flash Address, BaseAddress=0x00fffb4310, EntryPoint=0x00fffb4958)\r | |
199 | #(GUID=86D70125-BAA3-4296-A62F-602BEBBB9081 .textbaseaddress=0x00fffb4398 .databaseaddress=0x00fffb4178)\r | |
200 | match = re.match("([_a-zA-Z0-9\-]+)\s\(.+BaseAddress=(0x[0-9a-fA-F]+),\s+EntryPoint=(0x[0-9a-fA-F]+)\)", rptLine)\r | |
201 | if match is not None:\r | |
202 | modName = match.group(1)\r | |
203 | if len(modName) == 36:\r | |
204 | modName = self.dictGuidNameXref[modName.upper()]\r | |
205 | self.dictModBase['%s:BASE' % modName] = int (match.group(2), 16)\r | |
206 | self.dictModBase['%s:ENTRY' % modName] = int (match.group(3), 16)\r | |
207 | match = re.match("\(GUID=([A-Z0-9\-]+)\s+\.textbaseaddress=(0x[0-9a-fA-F]+)\s+\.databaseaddress=(0x[0-9a-fA-F]+)\)", rptLine)\r | |
208 | if match is not None:\r | |
209 | modName = match.group(1)\r | |
210 | if len(modName) == 36:\r | |
211 | modName = self.dictGuidNameXref[modName.upper()]\r | |
212 | self.dictModBase['%s:TEXT' % modName] = int (match.group(2), 16)\r | |
213 | self.dictModBase['%s:DATA' % modName] = int (match.group(3), 16)\r | |
214 | else:\r | |
215 | # 0x00fff8016c __ModuleEntryPoint\r | |
216 | match = re.match("^\s+(0x[a-z0-9]+)\s+([_a-zA-Z0-9]+)", rptLine)\r | |
217 | if match is not None:\r | |
218 | self.dictSymbolAddress["%s:%s"%(modName, match.group(2))] = match.group(1)\r | |
219 | rptLine = fdIn.readline()\r | |
220 | fdIn.close()\r | |
221 | return 0\r | |
222 | \r | |
223 | def parseModMapFile(self, moduleName, mapFile):\r | |
224 | modSymbols = {}\r | |
225 | fdIn = open(mapFile, "r")\r | |
226 | reportLine = fdIn.readline()\r | |
227 | if reportLine.strip().find("Archive member included because of file (symbol)") != -1:\r | |
228 | #GCC\r | |
229 | # 0x0000000000001d55 IoRead8\r | |
230 | patchMapFileMatchString = "\s+(0x[0-9a-fA-F]{16})\s+([^\s][^0x][_a-zA-Z0-9\-]+)\s"\r | |
231 | matchKeyGroupIndex = 2\r | |
232 | matchSymbolGroupIndex = 1\r | |
233 | moduleEntryPoint = "_ModuleEntryPoint"\r | |
234 | else:\r | |
235 | #MSFT\r | |
236 | #0003:00000190 _gComBase 00007a50 SerialPo\r | |
237 | patchMapFileMatchString = "^\s[0-9a-fA-F]{4}:[0-9a-fA-F]{8}\s+(\w+)\s+([0-9a-fA-F]{8}\s+)"\r | |
238 | matchKeyGroupIndex = 1\r | |
239 | matchSymbolGroupIndex = 2\r | |
240 | moduleEntryPoint = "__ModuleEntryPoint"\r | |
241 | while (reportLine != "" ):\r | |
242 | match = re.match(patchMapFileMatchString, reportLine)\r | |
243 | if match is not None:\r | |
244 | modSymbols[match.group(matchKeyGroupIndex)] = match.group(matchSymbolGroupIndex)\r | |
245 | reportLine = fdIn.readline()\r | |
246 | fdIn.close()\r | |
247 | \r | |
248 | if not moduleEntryPoint in modSymbols:\r | |
249 | return 1\r | |
250 | \r | |
251 | modEntry = '%s:%s' % (moduleName,moduleEntryPoint)\r | |
252 | if not modEntry in self.dictSymbolAddress:\r | |
253 | modKey = '%s:ENTRY' % moduleName\r | |
254 | if modKey in self.dictModBase:\r | |
255 | baseOffset = self.dictModBase['%s:ENTRY' % moduleName] - int(modSymbols[moduleEntryPoint], 16)\r | |
256 | else:\r | |
257 | return 2\r | |
258 | else:\r | |
259 | baseOffset = int(self.dictSymbolAddress[modEntry], 16) - int(modSymbols[moduleEntryPoint], 16)\r | |
260 | for symbol in modSymbols:\r | |
261 | fullSym = "%s:%s" % (moduleName, symbol)\r | |
262 | if not fullSym in self.dictSymbolAddress:\r | |
263 | self.dictSymbolAddress[fullSym] = "0x00%08x" % (baseOffset+ int(modSymbols[symbol], 16))\r | |
264 | return 0\r | |
265 | \r | |
266 | def parseGuidXrefFile(self, xrefFile):\r | |
267 | fdIn = open(xrefFile, "r")\r | |
268 | rptLine = fdIn.readline()\r | |
269 | while (rptLine != "" ):\r | |
270 | match = re.match("([0-9a-fA-F\-]+)\s([_a-zA-Z0-9]+)", rptLine)\r | |
271 | if match is not None:\r | |
272 | self.dictGuidNameXref[match.group(1).upper()] = match.group(2)\r | |
273 | rptLine = fdIn.readline()\r | |
274 | fdIn.close()\r | |
275 | return 0\r | |
276 | \r | |
277 | def getCurr(self):\r | |
278 | try:\r | |
279 | return self.string[self.index]\r | |
280 | except Exception:\r | |
281 | return ''\r | |
282 | \r | |
283 | def isLast(self):\r | |
284 | return self.index == len(self.string)\r | |
285 | \r | |
286 | def moveNext(self):\r | |
287 | self.index += 1\r | |
288 | \r | |
289 | def skipSpace(self):\r | |
290 | while not self.isLast():\r | |
291 | if self.getCurr() in ' \t':\r | |
292 | self.moveNext()\r | |
293 | else:\r | |
294 | return\r | |
295 | \r | |
296 | def parseValue(self):\r | |
297 | self.skipSpace()\r | |
298 | var = ''\r | |
299 | while not self.isLast():\r | |
300 | char = self.getCurr()\r | |
301 | if char.lower() in '_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789:-':\r | |
302 | var += char\r | |
303 | self.moveNext()\r | |
304 | else:\r | |
305 | break\r | |
306 | \r | |
307 | if ':' in var:\r | |
308 | partList = var.split(':')\r | |
309 | if len(partList) != 2:\r | |
310 | raise Exception("Unrecognized expression %s" % var)\r | |
311 | modName = partList[0]\r | |
312 | modOff = partList[1]\r | |
313 | if ('-' not in modName) and (modOff[0] in '0123456789'):\r | |
314 | # MOD: OFFSET\r | |
315 | var = self.getModGuid(modName) + ":" + modOff\r | |
316 | if '-' in var: # GUID:OFFSET\r | |
317 | value = self.getGuidOff(var)\r | |
318 | else:\r | |
319 | value = self.getSymbols(var)\r | |
320 | self.synUsed = True\r | |
321 | else:\r | |
322 | if var[0] in '0123456789':\r | |
323 | value = self.getNumber(var)\r | |
324 | else:\r | |
325 | value = self.getVariable(var)\r | |
326 | return int(value)\r | |
327 | \r | |
328 | def parseSingleOp(self):\r | |
329 | self.skipSpace()\r | |
330 | char = self.getCurr()\r | |
331 | if char == '~':\r | |
332 | self.moveNext()\r | |
333 | return ~self.parseBrace()\r | |
334 | else:\r | |
335 | return self.parseValue()\r | |
336 | \r | |
337 | def parseBrace(self):\r | |
338 | self.skipSpace()\r | |
339 | char = self.getCurr()\r | |
340 | parenthesisType = self.parenthesisOpenSet.find(char)\r | |
341 | if parenthesisType >= 0:\r | |
342 | self.moveNext()\r | |
343 | value = self.parseExpr()\r | |
344 | self.skipSpace()\r | |
345 | if self.getCurr() != self.parenthesisCloseSet[parenthesisType]:\r | |
346 | raise Exception("No closing brace")\r | |
347 | self.moveNext()\r | |
348 | if parenthesisType == 1: # [ : Get content\r | |
349 | value = self.getContent(value)\r | |
350 | elif parenthesisType == 2: # { : To address\r | |
351 | value = self.toAddress(value)\r | |
352 | elif parenthesisType == 3: # < : To offset\r | |
353 | value = self.toOffset(value)\r | |
354 | return value\r | |
355 | else:\r | |
356 | return self.parseSingleOp()\r | |
357 | \r | |
358 | def parseMul(self):\r | |
359 | values = [self.parseBrace()]\r | |
360 | while True:\r | |
361 | self.skipSpace()\r | |
362 | char = self.getCurr()\r | |
363 | if char == '*':\r | |
364 | self.moveNext()\r | |
365 | values.append(self.parseBrace())\r | |
366 | else:\r | |
367 | break\r | |
9da59186 | 368 | value = 1\r |
c8ec22a2 JY |
369 | for each in values:\r |
370 | value *= each\r | |
371 | return value\r | |
372 | \r | |
373 | def parseAndOr(self):\r | |
374 | values = [self.parseMul()]\r | |
375 | op = None\r | |
9da59186 | 376 | value = 0xFFFFFFFF\r |
c8ec22a2 JY |
377 | while True:\r |
378 | self.skipSpace()\r | |
379 | char = self.getCurr()\r | |
380 | if char == '&':\r | |
381 | self.moveNext()\r | |
382 | values.append(self.parseMul())\r | |
383 | op = char\r | |
384 | elif char == '|':\r | |
385 | div_index = self.index\r | |
386 | self.moveNext()\r | |
387 | values.append(self.parseMul())\r | |
388 | value = 0\r | |
389 | op = char\r | |
390 | else:\r | |
391 | break\r | |
392 | \r | |
393 | for each in values:\r | |
394 | if op == '|':\r | |
395 | value |= each\r | |
396 | else:\r | |
397 | value &= each\r | |
398 | \r | |
399 | return value\r | |
400 | \r | |
401 | def parseAddMinus(self):\r | |
402 | values = [self.parseAndOr()]\r | |
403 | while True:\r | |
404 | self.skipSpace()\r | |
405 | char = self.getCurr()\r | |
406 | if char == '+':\r | |
407 | self.moveNext()\r | |
408 | values.append(self.parseAndOr())\r | |
409 | elif char == '-':\r | |
410 | self.moveNext()\r | |
411 | values.append(-1 * self.parseAndOr())\r | |
412 | else:\r | |
413 | break\r | |
414 | return sum(values)\r | |
415 | \r | |
416 | def parseExpr(self):\r | |
417 | return self.parseAddMinus()\r | |
418 | \r | |
419 | def getResult(self):\r | |
420 | value = self.parseExpr()\r | |
421 | self.skipSpace()\r | |
422 | if not self.isLast():\r | |
423 | raise Exception("Unexpected character found '%s'" % self.getCurr())\r | |
424 | return value\r | |
425 | \r | |
426 | def getModGuid(self, var):\r | |
427 | guid = (guid for guid,name in self.dictGuidNameXref.items() if name==var)\r | |
428 | try:\r | |
429 | value = guid.next()\r | |
430 | except Exception:\r | |
431 | raise Exception("Unknown module name %s !" % var)\r | |
432 | return value\r | |
433 | \r | |
434 | def getVariable(self, var):\r | |
435 | value = self.dictVariable.get(var, None)\r | |
436 | if value == None:\r | |
437 | raise Exception("Unrecognized variable '%s'" % var)\r | |
438 | return value\r | |
439 | \r | |
440 | def getNumber(self, var):\r | |
441 | var = var.strip()\r | |
442 | if var.startswith('0x'): # HEX\r | |
443 | value = int(var, 16)\r | |
444 | else:\r | |
445 | value = int(var, 10)\r | |
446 | return value\r | |
447 | \r | |
448 | def getContent(self, value):\r | |
449 | if (value >= self.fdBase) and (value < self.fdBase + self.fdSize):\r | |
450 | value = value - self.fdBase\r | |
451 | if value >= self.fdSize:\r | |
452 | raise Exception("Invalid file offset 0x%08x !" % value)\r | |
453 | return readDataFromFile (self.fdFile, value, 4)\r | |
454 | \r | |
455 | def toAddress(self, value):\r | |
456 | if value < self.fdSize:\r | |
457 | value = value + self.fdBase\r | |
458 | return value\r | |
459 | \r | |
460 | def toOffset(self, value):\r | |
461 | if value > self.fdBase:\r | |
462 | value = value - self.fdBase\r | |
463 | return value\r | |
464 | \r | |
465 | def getGuidOff(self, value):\r | |
466 | # GUID:Offset\r | |
467 | symbolName = value.split(':')\r | |
468 | if len(symbolName) == 2 and self.dictFfsOffset.has_key(symbolName[0]):\r | |
469 | value = (int(self.dictFfsOffset[symbolName[0]], 16) + int(symbolName[1], 16)) & 0xFFFFFFFF\r | |
470 | else:\r | |
471 | raise Exception("Unknown GUID %s !" % value)\r | |
472 | return value\r | |
473 | \r | |
474 | def getSymbols(self, value):\r | |
475 | if self.dictSymbolAddress.has_key(value):\r | |
476 | # Module:Function\r | |
477 | ret = int (self.dictSymbolAddress[value], 16)\r | |
478 | else:\r | |
479 | raise Exception("Unknown symbol %s !" % value)\r | |
480 | return ret\r | |
481 | \r | |
482 | def evaluate(self, expression, isOffset):\r | |
483 | self.index = 0\r | |
484 | self.synUsed = False\r | |
485 | self.string = expression\r | |
486 | value = self.getResult()\r | |
487 | if isOffset:\r | |
488 | if self.synUsed:\r | |
489 | # Consider it as an address first\r | |
490 | if (value >= self.fdBase) and (value < self.fdBase + self.fdSize):\r | |
491 | value = value - self.fdBase\r | |
492 | if value & 0x80000000:\r | |
493 | # Consider it as a negative offset next\r | |
494 | offset = (~value & 0xFFFFFFFF) + 1\r | |
495 | if offset < self.fdSize:\r | |
496 | value = self.fdSize - offset\r | |
497 | if value >= self.fdSize:\r | |
498 | raise Exception("Invalid offset expression !")\r | |
499 | return value & 0xFFFFFFFF\r | |
500 | \r | |
501 | def usage():\r | |
502 | print "Usage: \n\tPatchFv FvBuildDir [FvFileBaseNames:]FdFileBaseNameToPatch \"Offset, Value\""\r | |
503 | \r | |
504 | def main():\r | |
505 | #\r | |
506 | # Parse the options and args\r | |
507 | #\r | |
508 | symTables = Symbols()\r | |
509 | \r | |
510 | if len(sys.argv) < 4:\r | |
511 | Usage()\r | |
512 | return 1\r | |
513 | \r | |
514 | if symTables.createDicts(sys.argv[1], sys.argv[2]) != 0:\r | |
515 | print "ERROR: Failed to create symbol dictionary!!"\r | |
516 | return 2\r | |
517 | \r | |
518 | fdFile = symTables.getFdFile()\r | |
519 | fdSize = symTables.getFdSize()\r | |
520 | \r | |
521 | try:\r | |
9da59186 JY |
522 | ret = IsFspHeaderValid(fdFile)\r |
523 | if ret == False:\r | |
524 | raise Exception ("The FSP header is not valid. Stop patching FD.")\r | |
c8ec22a2 JY |
525 | comment = ""\r |
526 | for fvFile in sys.argv[3:]:\r | |
527 | items = fvFile.split(",")\r | |
528 | if len (items) < 2:\r | |
529 | raise Exception("Expect more arguments for '%s'!" % fvFile)\r | |
530 | \r | |
531 | comment = ""\r | |
532 | command = ""\r | |
533 | params = []\r | |
534 | for item in items:\r | |
535 | item = item.strip()\r | |
536 | if item.startswith("@"):\r | |
537 | comment = item[1:]\r | |
538 | elif item.startswith("$"):\r | |
539 | command = item[1:]\r | |
540 | else:\r | |
541 | if len(params) == 0:\r | |
542 | isOffset = True\r | |
543 | else :\r | |
544 | isOffset = False\r | |
545 | params.append (symTables.evaluate(item, isOffset))\r | |
546 | \r | |
547 | if command == "":\r | |
548 | # Patch a DWORD\r | |
549 | if len (params) == 2:\r | |
550 | offset = params[0]\r | |
551 | value = params[1]\r | |
552 | oldvalue = readDataFromFile(fdFile, offset, 4)\r | |
553 | ret = patchDataInFile (fdFile, offset, value, 4) - 4\r | |
554 | else:\r | |
555 | raise Exception ("Patch command needs 2 parameters !")\r | |
556 | \r | |
557 | if ret:\r | |
558 | raise Exception ("Patch failed for offset 0x%08X" % offset)\r | |
559 | else:\r | |
560 | print "Patched offset 0x%08X:[%08X] with value 0x%08X # %s" % (offset, oldvalue, value, comment)\r | |
561 | \r | |
562 | elif command == "COPY":\r | |
563 | # Copy binary block from source to destination\r | |
564 | if len (params) == 3:\r | |
565 | src = symTables.toOffset(params[0])\r | |
566 | dest = symTables.toOffset(params[1])\r | |
567 | clen = symTables.toOffset(params[2])\r | |
568 | if (dest + clen <= fdSize) and (src + clen <= fdSize):\r | |
569 | oldvalue = readDataFromFile(fdFile, src, clen)\r | |
570 | ret = patchDataInFile (fdFile, dest, oldvalue, clen) - clen\r | |
571 | else:\r | |
572 | raise Exception ("Copy command OFFSET or LENGTH parameter is invalid !")\r | |
573 | else:\r | |
574 | raise Exception ("Copy command needs 3 parameters !")\r | |
575 | \r | |
576 | if ret:\r | |
577 | raise Exception ("Copy failed from offset 0x%08X to offset 0x%08X!" % (src, dest))\r | |
578 | else :\r | |
579 | print "Copied %d bytes from offset 0x%08X ~ offset 0x%08X # %s" % (clen, src, dest, comment)\r | |
580 | else:\r | |
581 | raise Exception ("Unknown command %s!" % command)\r | |
582 | return 0\r | |
583 | \r | |
584 | except Exception as (ex):\r | |
585 | print "ERROR: %s" % ex\r | |
586 | return 1\r | |
587 | \r | |
588 | if __name__ == '__main__':\r | |
589 | sys.exit(main())\r |