Varadarajan Narayanan | 2dfbd93 | 2016-04-21 16:06:06 +0530 | [diff] [blame] | 1 | #!/usr/bin/python |
| 2 | #============================================================================ |
| 3 | # |
| 4 | #/** @file createxbl.py |
| 5 | # |
| 6 | # GENERAL DESCRIPTION |
| 7 | # Concatentates XBL segments into one ELF image |
| 8 | # |
| 9 | # Copyright (c) 2016, The Linux Foundation. All rights reserved. |
| 10 | # |
| 11 | # Redistribution and use in source and binary forms, with or without |
| 12 | # modification, are permitted provided that the following conditions are |
| 13 | # met: |
| 14 | # * Redistributions of source code must retain the above copyright |
| 15 | # notice, this list of conditions and the following disclaimer. |
| 16 | # * Redistributions in binary form must reproduce the above |
| 17 | # copyright notice, this list of conditions and the following |
| 18 | # disclaimer in the documentation and/or other materials provided |
| 19 | # with the distribution. |
| 20 | # * Neither the name of The Linux Foundation nor the names of its |
| 21 | # contributors may be used to endorse or promote products derived |
| 22 | # from this software without specific prior written permission. |
| 23 | # |
| 24 | # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 25 | # WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 26 | # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 27 | # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 28 | # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 29 | # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 30 | # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 31 | # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 32 | # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 33 | # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 34 | # IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 35 | # |
| 36 | #**/ |
| 37 | # |
| 38 | #---------------------------------------------------------------------------- |
| 39 | # |
| 40 | # EDIT HISTORY FOR FILE |
| 41 | # |
| 42 | # This section contains comments describing changes made to the module. |
| 43 | # Notice that changes are listed in reverse chronological order. |
| 44 | # |
| 45 | # when who what, where, why |
| 46 | # -------- --- ------------------------------------------------------ |
| 47 | # 09/04/15 et Added -x and -d to embed xbl_sec ELF |
| 48 | # 02/11/15 ck Fixed missing elf type check in ZI OOB feature |
| 49 | # 11/04/14 ck Updated calls to mbn_tools functions |
| 50 | # 10/22/14 ck Added -z option to remove out of bounds ZI segments when converting from 64 to 32 |
| 51 | # 10/10/14 ck Added -c option and logic to enable elf type swapping |
| 52 | # 09/12/14 ck Added single file logic |
| 53 | # 08/29/14 ck Added no_hash option |
| 54 | # 08/29/14 ck Refactored to use proper python arguments and cleaned code |
| 55 | # 06/16/14 niting xbl.mbn to xbl.elf |
| 56 | # 05/28/14 niting Initial revision |
| 57 | # |
| 58 | #============================================================================ |
| 59 | from optparse import OptionParser |
| 60 | import os |
| 61 | import sys |
| 62 | import shutil |
| 63 | import mbn_tools |
| 64 | |
| 65 | PAGE_SIZE = 4096 |
| 66 | SEGMENT_ALIGN = 16 |
| 67 | ELF32_HDR_SIZE = 52 |
| 68 | ELF32_PHDR_SIZE = 32 |
| 69 | ELF64_HDR_SIZE = 64 |
| 70 | ELF64_PHDR_SIZE = 56 |
| 71 | |
| 72 | |
| 73 | ############################################################################## |
| 74 | # main |
| 75 | ############################################################################## |
| 76 | def main(): |
| 77 | parser = OptionParser(usage='usage: %prog [options] arguments') |
| 78 | |
| 79 | parser.add_option("-f", "--first_filepath", |
| 80 | action="store", type="string", dest="elf_inp_file1", |
| 81 | help="First ELF file to merge.") |
| 82 | |
| 83 | parser.add_option("-s", "--second_filepath", |
| 84 | action="store", type="string", dest="elf_inp_file2", |
| 85 | help="Second ELF file to merge.") |
| 86 | |
| 87 | parser.add_option("-x", "--xbl_sec_filepath", |
| 88 | action="store", type="string", dest="elf_inp_xbl_sec", |
| 89 | help="Second ELF file to merge.") |
| 90 | |
| 91 | parser.add_option("-o", "--output_filepath", |
| 92 | action="store", type="string", dest="binary_out", |
| 93 | help="Merged filename and path.") |
| 94 | |
| 95 | parser.add_option("-a", "--first_elf_arch", |
| 96 | action="store", type="string", dest="elf_1_arch", |
| 97 | help="First (and output) ELF file architecture. '32' or '64'") |
| 98 | |
| 99 | parser.add_option("-b", "--second_elf_arch", |
| 100 | action="store", type="string", dest="elf_2_arch", |
| 101 | help="Second ELF file architecture. '32' or '64'") |
| 102 | |
| 103 | parser.add_option("-d", "--xbl_sec_elf_arch", |
| 104 | action="store", type="string", dest="elf_xbl_sec_arch", |
| 105 | help="xbl_sec file architecture. '32' or '64'") |
| 106 | |
| 107 | parser.add_option("-c", "--output_elf_arch", |
| 108 | action="store", type="string", dest="elf_out_arch", |
| 109 | help="Output ELF file architecture. '32' or '64'" + \ |
| 110 | " If not given defaults to first file arch.") |
| 111 | |
| 112 | parser.add_option("-n", "--no_hash", |
| 113 | action="store_true", dest="hash_image", |
| 114 | help="Disables hashing of image after merging.") |
| 115 | |
| 116 | parser.add_option("-z", "--zi_out_of_bounds", |
| 117 | action="store_true", dest="zi_oob", |
| 118 | help="Removes ZI segments that have addresses greater" + \ |
| 119 | " than 32 bits when converting from a 64 to 32 bit ELF") |
| 120 | |
| 121 | |
| 122 | (options, args) = parser.parse_args() |
| 123 | if not options.elf_inp_file1: |
| 124 | parser.error('First ELF filename not given') |
| 125 | |
| 126 | if not options.binary_out: |
| 127 | parser.error('Output filename not given') |
| 128 | |
| 129 | if not options.elf_1_arch: |
| 130 | parser.error('First ELF architecture not given') |
| 131 | |
| 132 | if (not options.elf_1_arch == '64') and (not options.elf_1_arch == '32'): |
| 133 | parser.error('Invalid First ELF architecture given') |
| 134 | |
| 135 | # Only evaluate elf_2_arch if two files are given for merging |
| 136 | if options.elf_inp_file2: |
| 137 | if (not options.elf_2_arch == '64') and (not options.elf_2_arch == '32'): |
| 138 | parser.error('Invalid Second ELF architecture given') |
| 139 | |
| 140 | # Only evaluate elf_xbl_sec_arch if file is given |
| 141 | if options.elf_inp_xbl_sec: |
| 142 | if (not options.elf_xbl_sec_arch == '64') and (not options.elf_xbl_sec_arch == '32'): |
| 143 | parser.error('Invalid xbl_sec ELF architecture given') |
| 144 | |
| 145 | # If output file architecture is given ensure it is either '32' or '64' |
| 146 | if options.elf_out_arch: |
| 147 | if (not options.elf_out_arch == '64') and (not options.elf_out_arch == '32'): |
| 148 | parser.error('Invalid Output ELF architecture given') |
| 149 | |
| 150 | |
| 151 | gen_dict = {} |
| 152 | |
| 153 | elf_inp_file1 = options.elf_inp_file1 |
| 154 | |
| 155 | # It is valid for only one file to be "merged". This essentially just |
| 156 | # strips off the section names. If second file name is not given then |
| 157 | # set elf_inp_file2 to "" |
| 158 | if options.elf_inp_file2: |
| 159 | elf_inp_file2 = options.elf_inp_file2 |
| 160 | else: |
| 161 | elf_inp_file2 = "" |
| 162 | |
| 163 | # Do same for xbl_sec |
| 164 | elf_inp_xbl_sec = options.elf_inp_xbl_sec if options.elf_inp_xbl_sec else "" |
| 165 | |
| 166 | binary_out = options.binary_out |
| 167 | |
| 168 | if options.elf_1_arch == '64': |
| 169 | is_elf1_64_bit = True |
| 170 | else: |
| 171 | is_elf1_64_bit = False |
| 172 | |
| 173 | # If second filename is not given then set is_elf2_64_bit to false so it |
| 174 | # can be passed even though it is not used. |
| 175 | if options.elf_inp_file2: |
| 176 | if options.elf_2_arch == '64': |
| 177 | is_elf2_64_bit = True |
| 178 | else: |
| 179 | is_elf2_64_bit = False |
| 180 | else: |
| 181 | is_elf2_64_bit = False |
| 182 | |
| 183 | if options.elf_inp_xbl_sec: |
| 184 | if options.elf_xbl_sec_arch == '64': |
| 185 | is_elf_xbl_sec_64_bit = True |
| 186 | else: |
| 187 | is_elf_xbl_sec_64_bit = False |
| 188 | else: |
| 189 | is_elf_xbl_sec_64_bit = False |
| 190 | |
| 191 | # If output ELF arch is given then set is_out_elf_64_bit accordingly. |
| 192 | # If not then default to be input1's setting |
| 193 | if options.elf_out_arch: |
| 194 | if options.elf_out_arch == '64': |
| 195 | is_out_elf_64_bit = True |
| 196 | else: |
| 197 | is_out_elf_64_bit = False |
| 198 | else: |
| 199 | is_out_elf_64_bit = is_elf1_64_bit |
| 200 | |
| 201 | |
| 202 | # Store ZI Out of Bounds value |
| 203 | if not options.zi_oob: |
| 204 | zi_oob_enabled = False |
| 205 | else: |
| 206 | zi_oob_enabled = True |
| 207 | |
| 208 | |
| 209 | mbn_type = 'elf' |
| 210 | header_format = 'reg' |
| 211 | gen_dict['IMAGE_KEY_IMAGE_ID'] = mbn_tools.ImageType.APPSBL_IMG |
| 212 | #gen_dict['IMAGE_KEY_IMAGE_SOURCE'] = 0 |
| 213 | #gen_dict['IMAGE_KEY_IMAGE_DEST'] = 0 |
| 214 | gen_dict['IMAGE_KEY_MBN_TYPE'] = mbn_type |
| 215 | image_header_secflag = 'non_secure' |
| 216 | |
| 217 | source_base = os.path.splitext(str(binary_out))[0] |
| 218 | target_base = os.path.splitext(str(binary_out))[0] |
| 219 | merged_elf = source_base + "_merged.elf" |
| 220 | source_elf = source_base + "_nohash.elf" |
| 221 | target_hash = target_base + ".hash" |
| 222 | target_hash_hd = target_base + "_hash.hd" |
| 223 | target_phdr_elf = target_base + "_phdr.pbn" |
| 224 | target_nonsec = target_base + "_combined_hash.mbn" |
| 225 | |
| 226 | |
| 227 | #print "Input file 1:", elf_inp_file1 |
| 228 | #print "Input file 2:", elf_inp_file2 |
| 229 | #print "Output file:", binary_out |
| 230 | |
| 231 | merge_elfs([], |
| 232 | elf_inp_file1, |
| 233 | elf_inp_file2, |
| 234 | elf_inp_xbl_sec, |
| 235 | merged_elf, |
| 236 | is_elf1_64_bit, |
| 237 | is_elf2_64_bit, |
| 238 | is_elf_xbl_sec_64_bit, |
| 239 | is_out_elf_64_bit, |
| 240 | zi_oob_enabled) |
| 241 | |
| 242 | |
| 243 | # Hash the image if user did not explicitly say not to |
| 244 | if options.hash_image: |
| 245 | # Just copy the merged elf to the final output name |
| 246 | shutil.move(merged_elf, binary_out) |
| 247 | else: |
| 248 | shutil.copy(merged_elf, source_elf) |
| 249 | |
| 250 | # Create hash table |
| 251 | rv = mbn_tools.pboot_gen_elf([], |
| 252 | source_elf, |
| 253 | target_hash, |
| 254 | elf_out_file_name = target_phdr_elf, |
| 255 | secure_type = image_header_secflag) |
| 256 | if rv: |
| 257 | raise RuntimeError, "Failed to run pboot_gen_elf" |
| 258 | |
| 259 | # Create hash table header |
| 260 | rv = mbn_tools.image_header([], |
| 261 | gen_dict, |
| 262 | target_hash, |
| 263 | target_hash_hd, |
| 264 | image_header_secflag, |
| 265 | elf_file_name = source_elf) |
| 266 | if rv: |
| 267 | raise RuntimeError, "Failed to create image header for hash segment" |
| 268 | |
| 269 | files_to_cat_in_order = [target_hash_hd, target_hash] |
| 270 | mbn_tools.concat_files (target_nonsec, files_to_cat_in_order) |
| 271 | |
| 272 | # Add the hash segment into the ELF |
| 273 | mbn_tools.pboot_add_hash([], |
| 274 | target_phdr_elf, |
| 275 | target_nonsec, |
| 276 | binary_out) |
| 277 | |
| 278 | return |
| 279 | |
| 280 | |
| 281 | ############################################################################## |
| 282 | # roundup |
| 283 | ############################################################################## |
| 284 | def roundup(x, precision): |
| 285 | return x if x % precision == 0 else (x + precision - (x % precision)) |
| 286 | |
| 287 | ############################################################################## |
| 288 | # merge_elfs |
| 289 | ############################################################################## |
| 290 | def merge_elfs(env, |
| 291 | elf_in_file_name1, |
| 292 | elf_in_file_name2, |
| 293 | elf_in_file_xbl_sec, |
| 294 | elf_out_file_name, |
| 295 | is_elf1_64_bit, |
| 296 | is_elf2_64_bit, |
| 297 | is_elf_xbl_sec_64_bit, |
| 298 | is_out_elf_64_bit, |
| 299 | zi_oob_enabled): |
| 300 | |
| 301 | [elf_header1, phdr_table1] = \ |
| 302 | mbn_tools.preprocess_elf_file(elf_in_file_name1) |
| 303 | |
| 304 | # Check to make sure second file path exists before using |
| 305 | if elf_in_file_name2 != "": |
| 306 | [elf_header2, phdr_table2] = \ |
| 307 | mbn_tools.preprocess_elf_file(elf_in_file_name2) |
| 308 | |
| 309 | # Check to make sure xbl_sec file path exists before using |
| 310 | if elf_in_file_xbl_sec != "": |
| 311 | [elf_headerxblsec, phdr_tablexblsec] = \ |
| 312 | mbn_tools.preprocess_elf_file(elf_in_file_xbl_sec) |
| 313 | |
| 314 | # Open Files |
| 315 | elf_in_fp1 = mbn_tools.OPEN(elf_in_file_name1, "rb") |
| 316 | if elf_in_file_name2 != "": |
| 317 | elf_in_fp2 = mbn_tools.OPEN(elf_in_file_name2, "rb") |
| 318 | if elf_in_file_xbl_sec != "": |
| 319 | elf_in_fpxblsec = mbn_tools.OPEN(elf_in_file_xbl_sec, "rb") |
| 320 | |
| 321 | if elf_out_file_name is not None: |
| 322 | elf_out_fp = mbn_tools.OPEN(elf_out_file_name, "wb+") |
| 323 | |
| 324 | |
| 325 | # Calculate the new program header size. This is dependant on the output |
| 326 | # ELF type and number of program headers going into output. |
| 327 | if is_out_elf_64_bit: |
| 328 | phdr_total_size = elf_header1.e_phnum * ELF64_PHDR_SIZE |
| 329 | phdr_total_count = elf_header1.e_phnum |
| 330 | else: |
| 331 | phdr_total_size = elf_header1.e_phnum * ELF32_PHDR_SIZE |
| 332 | phdr_total_count = elf_header1.e_phnum |
| 333 | |
| 334 | |
| 335 | # This logic only applies if two files are to be merged |
| 336 | if elf_in_file_name2 != "": |
| 337 | if is_out_elf_64_bit: |
| 338 | phdr_total_size += elf_header2.e_phnum * ELF64_PHDR_SIZE |
| 339 | phdr_total_count += elf_header2.e_phnum |
| 340 | else: |
| 341 | phdr_total_size += elf_header2.e_phnum * ELF32_PHDR_SIZE |
| 342 | phdr_total_count += elf_header2.e_phnum |
| 343 | |
| 344 | # Account for xbl_sec header if included |
| 345 | if elf_in_file_xbl_sec != "": |
| 346 | phdr_total_count += 1 |
| 347 | if is_out_elf_64_bit: |
| 348 | phdr_total_size += ELF64_PHDR_SIZE |
| 349 | else: |
| 350 | phdr_total_size += ELF32_PHDR_SIZE |
| 351 | |
| 352 | # Create a new ELF header for the output file |
| 353 | if is_out_elf_64_bit: |
| 354 | out_elf_header = mbn_tools.Elf64_Ehdr('\0' * ELF64_HDR_SIZE) |
| 355 | out_elf_header.e_phoff = ELF64_HDR_SIZE |
| 356 | out_elf_header.e_ehsize = ELF64_HDR_SIZE |
| 357 | out_elf_header.e_phentsize = ELF64_PHDR_SIZE |
| 358 | out_elf_header.e_machine = 183 |
| 359 | out_elf_header.e_ident = str('\x7f' + 'E' + 'L' + 'F' + \ |
| 360 | '\x02' + \ |
| 361 | '\x01' + \ |
| 362 | '\x01' + \ |
| 363 | '\x00' + \ |
| 364 | '\x00' + \ |
| 365 | ('\x00' * 7)) |
| 366 | |
| 367 | out_elf_header.e_entry = elf_header1.e_entry |
| 368 | else: |
| 369 | out_elf_header = mbn_tools.Elf32_Ehdr('\0' * ELF32_HDR_SIZE) |
| 370 | out_elf_header.e_phoff = ELF32_HDR_SIZE |
| 371 | out_elf_header.e_ehsize = ELF32_HDR_SIZE |
| 372 | out_elf_header.e_phentsize = ELF32_PHDR_SIZE |
| 373 | out_elf_header.e_machine = 40 |
| 374 | out_elf_header.e_entry = elf_header1.e_entry |
| 375 | out_elf_header.e_ident = str('\x7f' + 'E' + 'L' + 'F' + \ |
| 376 | '\x01' + \ |
| 377 | '\x01' + \ |
| 378 | '\x01' + \ |
| 379 | '\x00' + \ |
| 380 | '\x00' + \ |
| 381 | ('\x00' * 7)) |
| 382 | |
| 383 | # Address needs to be verified that it is not greater than 32 bits |
| 384 | # as it is possible to go from a 64 bit elf to 32. |
| 385 | if (elf_header1.e_entry > 0xFFFFFFFF): |
| 386 | print "ERROR: File 1's entry point is too large to convert." |
| 387 | exit() |
| 388 | out_elf_header.e_entry = elf_header1.e_entry |
| 389 | |
| 390 | # Common header entries |
| 391 | out_elf_header.e_type = 2 |
| 392 | out_elf_header.e_version = 1 |
| 393 | out_elf_header.e_shoff = 0 |
| 394 | out_elf_header.e_flags = 0 |
| 395 | out_elf_header.e_shentsize = 0 |
| 396 | out_elf_header.e_shnum = 0 |
| 397 | out_elf_header.e_shstrndx = 0 |
| 398 | |
| 399 | |
| 400 | # If ZI OOB is enabled then it is possible that a segment could be discarded |
| 401 | # Scan for that instance and handle before setting e_phnum and writing header |
| 402 | # Ensure ELF output is 32 bit |
| 403 | if zi_oob_enabled == True and is_out_elf_64_bit == False: |
| 404 | for i in range(len(phdr_table1)): |
| 405 | if (phdr_table1[i].p_vaddr > 0xFFFFFFFF) or \ |
| 406 | (phdr_table1[i].p_paddr > 0xFFFFFFFF): |
| 407 | if phdr_table1[i].p_filesz == 0: |
| 408 | phdr_total_count = phdr_total_count - 1 |
| 409 | |
| 410 | if elf_in_file_name2 != "": |
| 411 | for i in range(len(phdr_table2)): |
| 412 | if (phdr_table2[i].p_vaddr > 0xFFFFFFFF) or \ |
| 413 | (phdr_table2[i].p_paddr > 0xFFFFFFFF): |
| 414 | if phdr_table2[i].p_filesz == 0: |
| 415 | phdr_total_count = phdr_total_count - 1 |
| 416 | # Do not include xbl_sec in above calculation |
| 417 | # xbl_sec is to be treated as a single blob |
| 418 | |
| 419 | |
| 420 | # Now it is ok to populate the ELF header and write it out |
| 421 | out_elf_header.e_phnum = phdr_total_count |
| 422 | |
| 423 | # write elf header |
| 424 | if is_out_elf_64_bit == False: |
| 425 | elf_out_fp.write(mbn_tools.Elf32_Ehdr.getPackedData(out_elf_header)) |
| 426 | else: |
| 427 | elf_out_fp.write(mbn_tools.Elf64_Ehdr.getPackedData(out_elf_header)) |
| 428 | |
| 429 | phdr_offset = out_elf_header.e_phoff # offset of where to put next phdr |
| 430 | |
| 431 | # offset the start of the segments just after the program headers |
| 432 | segment_offset = roundup(out_elf_header.e_phoff + phdr_total_size, PAGE_SIZE) |
| 433 | |
| 434 | |
| 435 | # Output first elf data |
| 436 | for i in range(elf_header1.e_phnum): |
| 437 | curr_phdr = phdr_table1[i] |
| 438 | |
| 439 | # Copy program header piece by piece to ensure possible conversion success |
| 440 | if is_out_elf_64_bit == True: |
| 441 | # Converting from 32 to 64 elf requires no data size validation |
| 442 | new_phdr = mbn_tools.Elf64_Phdr('\0' * ELF64_PHDR_SIZE) |
| 443 | new_phdr.p_type = curr_phdr.p_type |
| 444 | new_phdr.p_offset = segment_offset |
| 445 | new_phdr.p_vaddr = curr_phdr.p_vaddr |
| 446 | new_phdr.p_paddr = curr_phdr.p_paddr |
| 447 | new_phdr.p_filesz = curr_phdr.p_filesz |
| 448 | new_phdr.p_memsz = curr_phdr.p_memsz |
| 449 | new_phdr.p_flags = curr_phdr.p_flags |
| 450 | new_phdr.p_align = curr_phdr.p_align |
| 451 | else: |
| 452 | # Converting from 64 to 32 elf requires data size validation |
| 453 | # Note that there is an option to discard a segment if it is only ZI |
| 454 | # and its address is greater than 32 bits |
| 455 | new_phdr = mbn_tools.Elf32_Phdr('\0' * ELF32_PHDR_SIZE) |
| 456 | new_phdr.p_type = curr_phdr.p_type |
| 457 | new_phdr.p_offset = segment_offset |
| 458 | |
| 459 | if curr_phdr.p_vaddr > 0xFFFFFFFF: |
| 460 | if (zi_oob_enabled == True) and (curr_phdr.p_filesz == 0): |
| 461 | continue |
| 462 | else: |
| 463 | print "ERROR: File 1 VAddr is too large for conversion." |
| 464 | exit() |
| 465 | new_phdr.p_vaddr = curr_phdr.p_vaddr |
| 466 | |
| 467 | if curr_phdr.p_paddr > 0xFFFFFFFF: |
| 468 | if (zi_oob_enabled == True) and (curr_phdr.p_filesz == 0): |
| 469 | continue |
| 470 | else: |
| 471 | print "ERROR: File 1 PAddr is too large for conversion." |
| 472 | exit() |
| 473 | new_phdr.p_paddr = curr_phdr.p_paddr |
| 474 | |
| 475 | if curr_phdr.p_filesz > 0xFFFFFFFF: |
| 476 | print "ERROR: File 1 Filesz is too large for conversion." |
| 477 | exit() |
| 478 | new_phdr.p_filesz = curr_phdr.p_filesz |
| 479 | |
| 480 | if curr_phdr.p_memsz > 0xFFFFFFFF: |
| 481 | print "ERROR: File 1 Memsz is too large for conversion." |
| 482 | exit() |
| 483 | new_phdr.p_memsz = curr_phdr.p_memsz |
| 484 | |
| 485 | if curr_phdr.p_flags > 0xFFFFFFFF: |
| 486 | print "ERROR: File 1 Flags is too large for conversion." |
| 487 | exit() |
| 488 | new_phdr.p_flags = curr_phdr.p_flags |
| 489 | |
| 490 | if curr_phdr.p_align > 0xFFFFFFFF: |
| 491 | print "ERROR: File 1 Align is too large for conversion." |
| 492 | exit() |
| 493 | new_phdr.p_align = curr_phdr.p_align |
| 494 | |
| 495 | |
| 496 | #print "i=",i |
| 497 | #print "phdr_offset=", phdr_offset |
| 498 | |
| 499 | # update output file location to next phdr location |
| 500 | elf_out_fp.seek(phdr_offset) |
| 501 | # increment phdr_offset to next location |
| 502 | phdr_offset += out_elf_header.e_phentsize |
| 503 | |
| 504 | inp_data_offset = curr_phdr.p_offset # used to read data from input file |
| 505 | |
| 506 | # print "inp_data_offset=" |
| 507 | # print inp_data_offset |
| 508 | # |
| 509 | # print "curr_phdr.p_offset=" |
| 510 | # print curr_phdr.p_offset |
| 511 | # |
| 512 | # print "curr_phdr.p_filesz=" |
| 513 | # print curr_phdr.p_filesz |
| 514 | |
| 515 | # output current phdr |
| 516 | if is_out_elf_64_bit == False: |
| 517 | elf_out_fp.write(mbn_tools.Elf32_Phdr.getPackedData(new_phdr)) |
| 518 | else: |
| 519 | elf_out_fp.write(mbn_tools.Elf64_Phdr.getPackedData(new_phdr)) |
| 520 | |
| 521 | # Copy the ELF segment |
| 522 | bytes_written = mbn_tools.file_copy_offset(elf_in_fp1, |
| 523 | inp_data_offset, |
| 524 | elf_out_fp, |
| 525 | new_phdr.p_offset, |
| 526 | new_phdr.p_filesz) |
| 527 | |
| 528 | # update data segment offset to be aligned after previous segment |
| 529 | segment_offset += roundup(new_phdr.p_filesz, SEGMENT_ALIGN); |
| 530 | elf_in_fp1.close() |
| 531 | |
| 532 | # Output second elf data if applicable |
| 533 | if elf_in_file_name2 != "": |
| 534 | for i in range(elf_header2.e_phnum): |
| 535 | curr_phdr = phdr_table2[i] |
| 536 | |
| 537 | # Copy program header piece by piece to ensure possible conversion success |
| 538 | if is_out_elf_64_bit == True: |
| 539 | # Converting from 32 to 64 elf requires no data size validation |
| 540 | new_phdr = mbn_tools.Elf64_Phdr('\0' * ELF64_PHDR_SIZE) |
| 541 | new_phdr.p_type = curr_phdr.p_type |
| 542 | new_phdr.p_offset = segment_offset |
| 543 | new_phdr.p_vaddr = curr_phdr.p_vaddr |
| 544 | new_phdr.p_paddr = curr_phdr.p_paddr |
| 545 | new_phdr.p_filesz = curr_phdr.p_filesz |
| 546 | new_phdr.p_memsz = curr_phdr.p_memsz |
| 547 | new_phdr.p_flags = curr_phdr.p_flags |
| 548 | new_phdr.p_align = curr_phdr.p_align |
| 549 | else: |
| 550 | # Converting from 64 to 32 elf requires data size validation |
| 551 | # Note that there is an option to discard a segment if it is only ZI |
| 552 | # and its address is greater than 32 bits |
| 553 | new_phdr = mbn_tools.Elf32_Phdr('\0' * ELF32_PHDR_SIZE) |
| 554 | new_phdr.p_type = curr_phdr.p_type |
| 555 | new_phdr.p_offset = segment_offset |
| 556 | |
| 557 | if curr_phdr.p_vaddr > 0xFFFFFFFF: |
| 558 | if (zi_oob_enabled == True) and (curr_phdr.p_filesz == 0): |
| 559 | continue |
| 560 | else: |
| 561 | print "ERROR: File 2 VAddr is too large for conversion." |
| 562 | exit() |
| 563 | new_phdr.p_vaddr = curr_phdr.p_vaddr |
| 564 | |
| 565 | if curr_phdr.p_paddr > 0xFFFFFFFF: |
| 566 | if (zi_oob_enabled == True) and (curr_phdr.p_filesz == 0): |
| 567 | continue |
| 568 | else: |
| 569 | print "ERROR: File 2 PAddr is too large for conversion." |
| 570 | exit() |
| 571 | new_phdr.p_paddr = curr_phdr.p_paddr |
| 572 | |
| 573 | if curr_phdr.p_filesz > 0xFFFFFFFF: |
| 574 | print "ERROR: File 2 Filesz is too large for conversion." |
| 575 | exit() |
| 576 | new_phdr.p_filesz = curr_phdr.p_filesz |
| 577 | |
| 578 | if curr_phdr.p_memsz > 0xFFFFFFFF: |
| 579 | print "ERROR: File 2 Memsz is too large for conversion." |
| 580 | exit() |
| 581 | new_phdr.p_memsz = curr_phdr.p_memsz |
| 582 | |
| 583 | if curr_phdr.p_flags > 0xFFFFFFFF: |
| 584 | print "ERROR: File 2 Flags is too large for conversion." |
| 585 | exit() |
| 586 | new_phdr.p_flags = curr_phdr.p_flags |
| 587 | |
| 588 | if curr_phdr.p_align > 0xFFFFFFFF: |
| 589 | print "ERROR: File 2 Align is too large for conversion." |
| 590 | exit() |
| 591 | new_phdr.p_align = curr_phdr.p_align |
| 592 | |
| 593 | |
| 594 | # print "i=",i |
| 595 | # print "phdr_offset=", phdr_offset |
| 596 | |
| 597 | # update output file location to next phdr location |
| 598 | elf_out_fp.seek(phdr_offset) |
| 599 | # increment phdr_offset to next location |
| 600 | phdr_offset += out_elf_header.e_phentsize |
| 601 | |
| 602 | inp_data_offset = curr_phdr.p_offset # used to read data from input file |
| 603 | |
| 604 | # print "inp_data_offset=" |
| 605 | # print inp_data_offset |
| 606 | # |
| 607 | # print "curr_phdr.p_offset=" |
| 608 | # print curr_phdr.p_offset |
| 609 | # |
| 610 | # print "curr_phdr.p_filesz=" |
| 611 | # print curr_phdr.p_filesz |
| 612 | |
| 613 | # output current phdr |
| 614 | if is_out_elf_64_bit == False: |
| 615 | elf_out_fp.write(mbn_tools.Elf32_Phdr.getPackedData(new_phdr)) |
| 616 | else: |
| 617 | elf_out_fp.write(mbn_tools.Elf64_Phdr.getPackedData(new_phdr)) |
| 618 | |
| 619 | # Copy the ELF segment |
| 620 | bytes_written = mbn_tools.file_copy_offset(elf_in_fp2, |
| 621 | inp_data_offset, |
| 622 | elf_out_fp, |
| 623 | new_phdr.p_offset, |
| 624 | new_phdr.p_filesz) |
| 625 | |
| 626 | # update data segment offset to be aligned after previous segment |
| 627 | segment_offset += roundup(new_phdr.p_filesz, SEGMENT_ALIGN); |
| 628 | elf_in_fp2.close() |
| 629 | |
| 630 | # Embed xbl_sec image if provided |
| 631 | if elf_in_file_xbl_sec != "": |
| 632 | |
| 633 | # Scan pheaders in xbl_sec for segment that contains entry point address |
| 634 | entry_seg_offset = -1 |
| 635 | entry_addr = elf_headerxblsec.e_entry |
| 636 | for i in range(elf_headerxblsec.e_phnum): |
| 637 | phdr = phdr_tablexblsec[i] |
| 638 | max_addr = phdr.p_vaddr + phdr.p_memsz |
| 639 | if phdr.p_vaddr <= entry_addr <= max_addr: |
| 640 | entry_seg_offset = phdr.p_offset |
| 641 | break |
| 642 | if entry_seg_offset == -1: |
| 643 | print "Error: Failed to find entry point in any segment!" |
| 644 | exit() |
| 645 | # magical equation for program header's phys and virt addr |
| 646 | phys_virt_addr = entry_addr - entry_seg_offset |
| 647 | |
| 648 | if is_out_elf_64_bit: |
| 649 | # Converting from 32 to 64 elf requires no data size validation |
| 650 | new_phdr = mbn_tools.Elf64_Phdr('\0' * ELF64_PHDR_SIZE) |
| 651 | new_phdr.p_type = 0x1 |
| 652 | new_phdr.p_offset = segment_offset |
| 653 | new_phdr.p_vaddr = phys_virt_addr |
| 654 | new_phdr.p_paddr = phys_virt_addr |
| 655 | new_phdr.p_filesz = os.path.getsize(elf_in_file_xbl_sec) |
| 656 | new_phdr.p_memsz = new_phdr.p_filesz |
| 657 | new_phdr.p_flags = 0x5 |
| 658 | new_phdr.p_align = 0x1000 |
| 659 | else: |
| 660 | # Converting from 64 to 32 elf requires data size validation |
| 661 | # Don't discard the segment containing xbl_sec, simply error out |
| 662 | # if the address is greater than 32 bits |
| 663 | new_phdr = mbn_tools.Elf32_Phdr('\0' * ELF32_PHDR_SIZE) |
| 664 | new_phdr.p_type = 0x1 # |
| 665 | new_phdr.p_offset = segment_offset |
| 666 | new_phdr.p_flags = 0x5 |
| 667 | new_phdr.p_align = 0x1000 |
| 668 | |
| 669 | if phys_virt_addr > 0xFFFFFFFF: |
| 670 | if zi_oob_enabled == False or curr_phdr.p_filesz != 0: |
| 671 | print "ERROR: File xbl_sec VAddr or PAddr is too large for conversion." |
| 672 | exit() |
| 673 | new_phdr.p_vaddr = phys_virt_addr |
| 674 | new_phdr.p_paddr = phys_virt_addr |
| 675 | |
| 676 | if os.path.getsize(elf_in_file_xbl_sec) > 0xFFFFFFFF: |
| 677 | print "ERROR: File xbl_sec Filesz is too large for conversion." |
| 678 | exit() |
| 679 | new_phdr.p_filesz = os.path.getsize(elf_in_file_xbl_sec) |
| 680 | new_phdr.p_memsz = new_phdr.p_filesz |
| 681 | |
| 682 | |
| 683 | # update output file location to next phdr location |
| 684 | elf_out_fp.seek(phdr_offset) |
| 685 | # increment phdr_offset to next location |
| 686 | phdr_offset += out_elf_header.e_phentsize |
| 687 | # Copy entire xbl_sec file, so start from byte 0 |
| 688 | inp_data_offset = 0 |
| 689 | |
| 690 | # Output xbl_sec's phdr |
| 691 | elf_in_file_xbl_sec |
| 692 | if is_out_elf_64_bit == False: |
| 693 | elf_out_fp.write(mbn_tools.Elf32_Phdr.getPackedData(new_phdr)) |
| 694 | else: |
| 695 | elf_out_fp.write(mbn_tools.Elf64_Phdr.getPackedData(new_phdr)) |
| 696 | |
| 697 | # Copy the ENTIRE xbl_sec image |
| 698 | bytes_written = mbn_tools.file_copy_offset(elf_in_fpxblsec, |
| 699 | inp_data_offset, |
| 700 | elf_out_fp, |
| 701 | new_phdr.p_offset, |
| 702 | new_phdr.p_filesz) |
| 703 | # update data segment offset to be aligned after previous segment |
| 704 | # Not necessary, unless appending more pheaders after this point |
| 705 | segment_offset += roundup(new_phdr.p_filesz, SEGMENT_ALIGN); |
| 706 | |
| 707 | elf_in_fpxblsec.close() |
| 708 | |
| 709 | elf_out_fp.close() |
| 710 | |
| 711 | return 0 |
| 712 | |
| 713 | |
| 714 | main() |