| 1 | /* Mach-O support for BFD. |
| 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
| 3 | 2009, 2010, 2011 |
| 4 | Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of BFD, the Binary File Descriptor library. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | MA 02110-1301, USA. */ |
| 22 | |
| 23 | #include "sysdep.h" |
| 24 | #include "mach-o.h" |
| 25 | #include "bfd.h" |
| 26 | #include "libbfd.h" |
| 27 | #include "libiberty.h" |
| 28 | #include "aout/stab_gnu.h" |
| 29 | #include <ctype.h> |
| 30 | |
| 31 | #define bfd_mach_o_object_p bfd_mach_o_gen_object_p |
| 32 | #define bfd_mach_o_core_p bfd_mach_o_gen_core_p |
| 33 | #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject |
| 34 | |
| 35 | #define FILE_ALIGN(off, algn) \ |
| 36 | (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1 << (algn))) |
| 37 | |
| 38 | static int bfd_mach_o_read_symtab_symbols (bfd *); |
| 39 | |
| 40 | unsigned int |
| 41 | bfd_mach_o_version (bfd *abfd) |
| 42 | { |
| 43 | bfd_mach_o_data_struct *mdata = NULL; |
| 44 | |
| 45 | BFD_ASSERT (bfd_mach_o_valid (abfd)); |
| 46 | mdata = bfd_mach_o_get_data (abfd); |
| 47 | |
| 48 | return mdata->header.version; |
| 49 | } |
| 50 | |
| 51 | bfd_boolean |
| 52 | bfd_mach_o_valid (bfd *abfd) |
| 53 | { |
| 54 | if (abfd == NULL || abfd->xvec == NULL) |
| 55 | return FALSE; |
| 56 | |
| 57 | if (abfd->xvec->flavour != bfd_target_mach_o_flavour) |
| 58 | return FALSE; |
| 59 | |
| 60 | if (bfd_mach_o_get_data (abfd) == NULL) |
| 61 | return FALSE; |
| 62 | return TRUE; |
| 63 | } |
| 64 | |
| 65 | static INLINE bfd_boolean |
| 66 | mach_o_wide_p (bfd_mach_o_header *header) |
| 67 | { |
| 68 | switch (header->version) |
| 69 | { |
| 70 | case 1: |
| 71 | return FALSE; |
| 72 | case 2: |
| 73 | return TRUE; |
| 74 | default: |
| 75 | BFD_FAIL (); |
| 76 | return FALSE; |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | static INLINE bfd_boolean |
| 81 | bfd_mach_o_wide_p (bfd *abfd) |
| 82 | { |
| 83 | return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header); |
| 84 | } |
| 85 | |
| 86 | /* Tables to translate well known Mach-O segment/section names to bfd |
| 87 | names. Use of canonical names (such as .text or .debug_frame) is required |
| 88 | by gdb. */ |
| 89 | |
| 90 | struct mach_o_section_name_xlat |
| 91 | { |
| 92 | const char *bfd_name; |
| 93 | const char *mach_o_name; |
| 94 | flagword flags; |
| 95 | }; |
| 96 | |
| 97 | static const struct mach_o_section_name_xlat dwarf_section_names_xlat[] = |
| 98 | { |
| 99 | { ".debug_frame", "__debug_frame", SEC_DEBUGGING }, |
| 100 | { ".debug_info", "__debug_info", SEC_DEBUGGING }, |
| 101 | { ".debug_abbrev", "__debug_abbrev", SEC_DEBUGGING }, |
| 102 | { ".debug_aranges", "__debug_aranges", SEC_DEBUGGING }, |
| 103 | { ".debug_macinfo", "__debug_macinfo", SEC_DEBUGGING }, |
| 104 | { ".debug_line", "__debug_line", SEC_DEBUGGING }, |
| 105 | { ".debug_loc", "__debug_loc", SEC_DEBUGGING }, |
| 106 | { ".debug_pubnames", "__debug_pubnames", SEC_DEBUGGING }, |
| 107 | { ".debug_pubtypes", "__debug_pubtypes", SEC_DEBUGGING }, |
| 108 | { ".debug_str", "__debug_str", SEC_DEBUGGING }, |
| 109 | { ".debug_ranges", "__debug_ranges", SEC_DEBUGGING }, |
| 110 | { NULL, NULL, 0} |
| 111 | }; |
| 112 | |
| 113 | static const struct mach_o_section_name_xlat text_section_names_xlat[] = |
| 114 | { |
| 115 | { ".text", "__text", SEC_CODE | SEC_LOAD }, |
| 116 | { ".const", "__const", SEC_READONLY | SEC_DATA | SEC_LOAD }, |
| 117 | { ".cstring", "__cstring", SEC_READONLY | SEC_DATA | SEC_LOAD }, |
| 118 | { ".eh_frame", "__eh_frame", SEC_READONLY | SEC_LOAD }, |
| 119 | { NULL, NULL, 0} |
| 120 | }; |
| 121 | |
| 122 | static const struct mach_o_section_name_xlat data_section_names_xlat[] = |
| 123 | { |
| 124 | { ".data", "__data", SEC_DATA | SEC_LOAD }, |
| 125 | { ".const_data", "__const", SEC_DATA | SEC_LOAD }, |
| 126 | { ".dyld", "__dyld", SEC_DATA | SEC_LOAD }, |
| 127 | { ".lazy_symbol_ptr", "__la_symbol_ptr", SEC_DATA | SEC_LOAD }, |
| 128 | { ".non_lazy_symbol_ptr", "__nl_symbol_ptr", SEC_DATA | SEC_LOAD }, |
| 129 | { ".bss", "__bss", SEC_NO_FLAGS }, |
| 130 | { NULL, NULL, 0} |
| 131 | }; |
| 132 | |
| 133 | struct mach_o_segment_name_xlat |
| 134 | { |
| 135 | const char *segname; |
| 136 | const struct mach_o_section_name_xlat *sections; |
| 137 | }; |
| 138 | |
| 139 | static const struct mach_o_segment_name_xlat segsec_names_xlat[] = |
| 140 | { |
| 141 | { "__DWARF", dwarf_section_names_xlat }, |
| 142 | { "__TEXT", text_section_names_xlat }, |
| 143 | { "__DATA", data_section_names_xlat }, |
| 144 | { NULL, NULL } |
| 145 | }; |
| 146 | |
| 147 | |
| 148 | /* Mach-O to bfd names. */ |
| 149 | |
| 150 | static void |
| 151 | bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, bfd_mach_o_section *section, |
| 152 | char **name, flagword *flags) |
| 153 | { |
| 154 | const struct mach_o_segment_name_xlat *seg; |
| 155 | char *res; |
| 156 | unsigned int len; |
| 157 | const char *pfx = ""; |
| 158 | |
| 159 | *name = NULL; |
| 160 | *flags = SEC_NO_FLAGS; |
| 161 | |
| 162 | for (seg = segsec_names_xlat; seg->segname; seg++) |
| 163 | { |
| 164 | if (strcmp (seg->segname, section->segname) == 0) |
| 165 | { |
| 166 | const struct mach_o_section_name_xlat *sec; |
| 167 | |
| 168 | for (sec = seg->sections; sec->mach_o_name; sec++) |
| 169 | { |
| 170 | if (strcmp (sec->mach_o_name, section->sectname) == 0) |
| 171 | { |
| 172 | len = strlen (sec->bfd_name); |
| 173 | res = bfd_alloc (abfd, len + 1); |
| 174 | |
| 175 | if (res == NULL) |
| 176 | return; |
| 177 | strcpy (res, sec->bfd_name); |
| 178 | *name = res; |
| 179 | *flags = sec->flags; |
| 180 | return; |
| 181 | } |
| 182 | } |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | len = strlen (section->segname) + 1 |
| 187 | + strlen (section->sectname) + 1; |
| 188 | |
| 189 | /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start |
| 190 | with an underscore. */ |
| 191 | if (section->segname[0] != '_') |
| 192 | { |
| 193 | static const char seg_pfx[] = "LC_SEGMENT."; |
| 194 | |
| 195 | pfx = seg_pfx; |
| 196 | len += sizeof (seg_pfx) - 1; |
| 197 | } |
| 198 | |
| 199 | res = bfd_alloc (abfd, len); |
| 200 | if (res == NULL) |
| 201 | return; |
| 202 | snprintf (res, len, "%s%s.%s", pfx, section->segname, section->sectname); |
| 203 | *name = res; |
| 204 | } |
| 205 | |
| 206 | /* Convert a bfd section name to a Mach-O segment + section name. */ |
| 207 | |
| 208 | static void |
| 209 | bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED, |
| 210 | asection *sect, |
| 211 | bfd_mach_o_section *section) |
| 212 | { |
| 213 | const struct mach_o_segment_name_xlat *seg; |
| 214 | const char *name = bfd_get_section_name (abfd, sect); |
| 215 | const char *dot; |
| 216 | unsigned int len; |
| 217 | unsigned int seglen; |
| 218 | unsigned int seclen; |
| 219 | |
| 220 | /* List of well known names. They all start with a dot. */ |
| 221 | if (name[0] == '.') |
| 222 | for (seg = segsec_names_xlat; seg->segname; seg++) |
| 223 | { |
| 224 | const struct mach_o_section_name_xlat *sec; |
| 225 | |
| 226 | for (sec = seg->sections; sec->mach_o_name; sec++) |
| 227 | { |
| 228 | if (strcmp (sec->bfd_name, name) == 0) |
| 229 | { |
| 230 | strcpy (section->segname, seg->segname); |
| 231 | strcpy (section->sectname, sec->mach_o_name); |
| 232 | return; |
| 233 | } |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | /* Strip LC_SEGMENT. prefix. */ |
| 238 | if (strncmp (name, "LC_SEGMENT.", 11) == 0) |
| 239 | name += 11; |
| 240 | |
| 241 | /* Find a dot. */ |
| 242 | dot = strchr (name, '.'); |
| 243 | len = strlen (name); |
| 244 | |
| 245 | /* Try to split name into segment and section names. */ |
| 246 | if (dot && dot != name) |
| 247 | { |
| 248 | seglen = dot - name; |
| 249 | seclen = len - (dot + 1 - name); |
| 250 | |
| 251 | if (seglen < 16 && seclen < 16) |
| 252 | { |
| 253 | memcpy (section->segname, name, seglen); |
| 254 | section->segname[seglen] = 0; |
| 255 | memcpy (section->sectname, dot + 1, seclen); |
| 256 | section->sectname[seclen] = 0; |
| 257 | return; |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | if (len > 16) |
| 262 | len = 16; |
| 263 | memcpy (section->segname, name, len); |
| 264 | section->segname[len] = 0; |
| 265 | memcpy (section->sectname, name, len); |
| 266 | section->sectname[len] = 0; |
| 267 | } |
| 268 | |
| 269 | /* Return the size of an entry for section SEC. |
| 270 | Must be called only for symbol pointer section and symbol stubs |
| 271 | sections. */ |
| 272 | |
| 273 | static unsigned int |
| 274 | bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec) |
| 275 | { |
| 276 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
| 277 | { |
| 278 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: |
| 279 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: |
| 280 | return bfd_mach_o_wide_p (abfd) ? 8 : 4; |
| 281 | case BFD_MACH_O_S_SYMBOL_STUBS: |
| 282 | return sec->reserved2; |
| 283 | default: |
| 284 | BFD_FAIL (); |
| 285 | return 0; |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | /* Return the number of indirect symbols for a section. |
| 290 | Must be called only for symbol pointer section and symbol stubs |
| 291 | sections. */ |
| 292 | |
| 293 | static unsigned int |
| 294 | bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec) |
| 295 | { |
| 296 | unsigned int elsz; |
| 297 | |
| 298 | elsz = bfd_mach_o_section_get_entry_size (abfd, sec); |
| 299 | if (elsz == 0) |
| 300 | return 0; |
| 301 | else |
| 302 | return sec->size / elsz; |
| 303 | } |
| 304 | |
| 305 | |
| 306 | /* Copy any private info we understand from the input symbol |
| 307 | to the output symbol. */ |
| 308 | |
| 309 | bfd_boolean |
| 310 | bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, |
| 311 | asymbol *isymbol ATTRIBUTE_UNUSED, |
| 312 | bfd *obfd ATTRIBUTE_UNUSED, |
| 313 | asymbol *osymbol ATTRIBUTE_UNUSED) |
| 314 | { |
| 315 | return TRUE; |
| 316 | } |
| 317 | |
| 318 | /* Copy any private info we understand from the input section |
| 319 | to the output section. */ |
| 320 | |
| 321 | bfd_boolean |
| 322 | bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED, |
| 323 | asection *isection ATTRIBUTE_UNUSED, |
| 324 | bfd *obfd ATTRIBUTE_UNUSED, |
| 325 | asection *osection ATTRIBUTE_UNUSED) |
| 326 | { |
| 327 | return TRUE; |
| 328 | } |
| 329 | |
| 330 | /* Copy any private info we understand from the input bfd |
| 331 | to the output bfd. */ |
| 332 | |
| 333 | bfd_boolean |
| 334 | bfd_mach_o_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
| 335 | { |
| 336 | if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour |
| 337 | || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour) |
| 338 | return TRUE; |
| 339 | |
| 340 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
| 341 | BFD_ASSERT (bfd_mach_o_valid (obfd)); |
| 342 | |
| 343 | /* FIXME: copy commands. */ |
| 344 | |
| 345 | return TRUE; |
| 346 | } |
| 347 | |
| 348 | /* Count the total number of symbols. */ |
| 349 | |
| 350 | static long |
| 351 | bfd_mach_o_count_symbols (bfd *abfd) |
| 352 | { |
| 353 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 354 | |
| 355 | if (mdata->symtab == NULL) |
| 356 | return 0; |
| 357 | return mdata->symtab->nsyms; |
| 358 | } |
| 359 | |
| 360 | long |
| 361 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
| 362 | { |
| 363 | long nsyms = bfd_mach_o_count_symbols (abfd); |
| 364 | |
| 365 | return ((nsyms + 1) * sizeof (asymbol *)); |
| 366 | } |
| 367 | |
| 368 | long |
| 369 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
| 370 | { |
| 371 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 372 | long nsyms = bfd_mach_o_count_symbols (abfd); |
| 373 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
| 374 | unsigned long j; |
| 375 | |
| 376 | if (nsyms < 0) |
| 377 | return nsyms; |
| 378 | |
| 379 | if (bfd_mach_o_read_symtab_symbols (abfd) != 0) |
| 380 | { |
| 381 | (*_bfd_error_handler) (_("bfd_mach_o_canonicalize_symtab: unable to load symbols")); |
| 382 | return 0; |
| 383 | } |
| 384 | |
| 385 | BFD_ASSERT (sym->symbols != NULL); |
| 386 | |
| 387 | for (j = 0; j < sym->nsyms; j++) |
| 388 | alocation[j] = &sym->symbols[j].symbol; |
| 389 | |
| 390 | alocation[j] = NULL; |
| 391 | |
| 392 | return nsyms; |
| 393 | } |
| 394 | |
| 395 | long |
| 396 | bfd_mach_o_get_synthetic_symtab (bfd *abfd, |
| 397 | long symcount ATTRIBUTE_UNUSED, |
| 398 | asymbol **syms ATTRIBUTE_UNUSED, |
| 399 | long dynsymcount ATTRIBUTE_UNUSED, |
| 400 | asymbol **dynsyms ATTRIBUTE_UNUSED, |
| 401 | asymbol **ret) |
| 402 | { |
| 403 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 404 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; |
| 405 | bfd_mach_o_symtab_command *symtab = mdata->symtab; |
| 406 | asymbol *s; |
| 407 | unsigned long count, i, j, n; |
| 408 | size_t size; |
| 409 | char *names; |
| 410 | char *nul_name; |
| 411 | |
| 412 | *ret = NULL; |
| 413 | |
| 414 | if (dysymtab == NULL || symtab == NULL || symtab->symbols == NULL) |
| 415 | return 0; |
| 416 | |
| 417 | if (dysymtab->nindirectsyms == 0) |
| 418 | return 0; |
| 419 | |
| 420 | count = dysymtab->nindirectsyms; |
| 421 | size = count * sizeof (asymbol) + 1; |
| 422 | |
| 423 | for (j = 0; j < count; j++) |
| 424 | { |
| 425 | unsigned int isym = dysymtab->indirect_syms[j]; |
| 426 | |
| 427 | if (isym < symtab->nsyms && symtab->symbols[isym].symbol.name) |
| 428 | size += strlen (symtab->symbols[isym].symbol.name) + sizeof ("$stub"); |
| 429 | } |
| 430 | |
| 431 | s = *ret = (asymbol *) bfd_malloc (size); |
| 432 | if (s == NULL) |
| 433 | return -1; |
| 434 | names = (char *) (s + count); |
| 435 | nul_name = names; |
| 436 | *names++ = 0; |
| 437 | |
| 438 | n = 0; |
| 439 | for (i = 0; i < mdata->nsects; i++) |
| 440 | { |
| 441 | bfd_mach_o_section *sec = mdata->sections[i]; |
| 442 | unsigned int first, last; |
| 443 | bfd_vma addr; |
| 444 | bfd_vma entry_size; |
| 445 | |
| 446 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
| 447 | { |
| 448 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: |
| 449 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: |
| 450 | case BFD_MACH_O_S_SYMBOL_STUBS: |
| 451 | first = sec->reserved1; |
| 452 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); |
| 453 | addr = sec->addr; |
| 454 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); |
| 455 | for (j = first; j < last; j++) |
| 456 | { |
| 457 | unsigned int isym = dysymtab->indirect_syms[j]; |
| 458 | |
| 459 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 460 | s->section = sec->bfdsection; |
| 461 | s->value = addr - sec->addr; |
| 462 | s->udata.p = NULL; |
| 463 | |
| 464 | if (isym < symtab->nsyms |
| 465 | && symtab->symbols[isym].symbol.name) |
| 466 | { |
| 467 | const char *sym = symtab->symbols[isym].symbol.name; |
| 468 | size_t len; |
| 469 | |
| 470 | s->name = names; |
| 471 | len = strlen (sym); |
| 472 | memcpy (names, sym, len); |
| 473 | names += len; |
| 474 | memcpy (names, "$stub", sizeof ("$stub")); |
| 475 | names += sizeof ("$stub"); |
| 476 | } |
| 477 | else |
| 478 | s->name = nul_name; |
| 479 | |
| 480 | addr += entry_size; |
| 481 | s++; |
| 482 | n++; |
| 483 | } |
| 484 | break; |
| 485 | default: |
| 486 | break; |
| 487 | } |
| 488 | } |
| 489 | |
| 490 | return n; |
| 491 | } |
| 492 | |
| 493 | void |
| 494 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
| 495 | asymbol *symbol, |
| 496 | symbol_info *ret) |
| 497 | { |
| 498 | bfd_symbol_info (symbol, ret); |
| 499 | } |
| 500 | |
| 501 | void |
| 502 | bfd_mach_o_print_symbol (bfd *abfd, |
| 503 | void * afile, |
| 504 | asymbol *symbol, |
| 505 | bfd_print_symbol_type how) |
| 506 | { |
| 507 | FILE *file = (FILE *) afile; |
| 508 | const char *name; |
| 509 | bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol; |
| 510 | |
| 511 | switch (how) |
| 512 | { |
| 513 | case bfd_print_symbol_name: |
| 514 | fprintf (file, "%s", symbol->name); |
| 515 | break; |
| 516 | default: |
| 517 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
| 518 | if (asym->n_type & BFD_MACH_O_N_STAB) |
| 519 | name = bfd_get_stab_name (asym->n_type); |
| 520 | else |
| 521 | switch (asym->n_type & BFD_MACH_O_N_TYPE) |
| 522 | { |
| 523 | case BFD_MACH_O_N_UNDF: |
| 524 | name = "UND"; |
| 525 | break; |
| 526 | case BFD_MACH_O_N_ABS: |
| 527 | name = "ABS"; |
| 528 | break; |
| 529 | case BFD_MACH_O_N_INDR: |
| 530 | name = "INDR"; |
| 531 | break; |
| 532 | case BFD_MACH_O_N_PBUD: |
| 533 | name = "PBUD"; |
| 534 | break; |
| 535 | case BFD_MACH_O_N_SECT: |
| 536 | name = "SECT"; |
| 537 | break; |
| 538 | default: |
| 539 | name = "???"; |
| 540 | break; |
| 541 | } |
| 542 | if (name == NULL) |
| 543 | name = ""; |
| 544 | fprintf (file, " %02x %-6s %02x %04x", |
| 545 | asym->n_type, name, asym->n_sect, asym->n_desc); |
| 546 | if ((asym->n_type & BFD_MACH_O_N_STAB) == 0 |
| 547 | && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) |
| 548 | fprintf (file, " %-5s", symbol->section->name); |
| 549 | fprintf (file, " %s", symbol->name); |
| 550 | } |
| 551 | } |
| 552 | |
| 553 | static void |
| 554 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
| 555 | bfd_mach_o_cpu_subtype msubtype ATTRIBUTE_UNUSED, |
| 556 | enum bfd_architecture *type, |
| 557 | unsigned long *subtype) |
| 558 | { |
| 559 | *subtype = bfd_arch_unknown; |
| 560 | |
| 561 | switch (mtype) |
| 562 | { |
| 563 | case BFD_MACH_O_CPU_TYPE_VAX: *type = bfd_arch_vax; break; |
| 564 | case BFD_MACH_O_CPU_TYPE_MC680x0: *type = bfd_arch_m68k; break; |
| 565 | case BFD_MACH_O_CPU_TYPE_I386: |
| 566 | *type = bfd_arch_i386; |
| 567 | *subtype = bfd_mach_i386_i386; |
| 568 | break; |
| 569 | case BFD_MACH_O_CPU_TYPE_X86_64: |
| 570 | *type = bfd_arch_i386; |
| 571 | *subtype = bfd_mach_x86_64; |
| 572 | break; |
| 573 | case BFD_MACH_O_CPU_TYPE_MIPS: *type = bfd_arch_mips; break; |
| 574 | case BFD_MACH_O_CPU_TYPE_MC98000: *type = bfd_arch_m98k; break; |
| 575 | case BFD_MACH_O_CPU_TYPE_HPPA: *type = bfd_arch_hppa; break; |
| 576 | case BFD_MACH_O_CPU_TYPE_ARM: *type = bfd_arch_arm; break; |
| 577 | case BFD_MACH_O_CPU_TYPE_MC88000: *type = bfd_arch_m88k; break; |
| 578 | case BFD_MACH_O_CPU_TYPE_SPARC: |
| 579 | *type = bfd_arch_sparc; |
| 580 | *subtype = bfd_mach_sparc; |
| 581 | break; |
| 582 | case BFD_MACH_O_CPU_TYPE_I860: *type = bfd_arch_i860; break; |
| 583 | case BFD_MACH_O_CPU_TYPE_ALPHA: *type = bfd_arch_alpha; break; |
| 584 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
| 585 | *type = bfd_arch_powerpc; |
| 586 | *subtype = bfd_mach_ppc; |
| 587 | break; |
| 588 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
| 589 | *type = bfd_arch_powerpc; |
| 590 | *subtype = bfd_mach_ppc64; |
| 591 | break; |
| 592 | default: |
| 593 | *type = bfd_arch_unknown; |
| 594 | break; |
| 595 | } |
| 596 | } |
| 597 | |
| 598 | static bfd_boolean |
| 599 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) |
| 600 | { |
| 601 | unsigned char buf[32]; |
| 602 | unsigned int size; |
| 603 | |
| 604 | size = mach_o_wide_p (header) ? |
| 605 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
| 606 | |
| 607 | bfd_h_put_32 (abfd, header->magic, buf + 0); |
| 608 | bfd_h_put_32 (abfd, header->cputype, buf + 4); |
| 609 | bfd_h_put_32 (abfd, header->cpusubtype, buf + 8); |
| 610 | bfd_h_put_32 (abfd, header->filetype, buf + 12); |
| 611 | bfd_h_put_32 (abfd, header->ncmds, buf + 16); |
| 612 | bfd_h_put_32 (abfd, header->sizeofcmds, buf + 20); |
| 613 | bfd_h_put_32 (abfd, header->flags, buf + 24); |
| 614 | |
| 615 | if (mach_o_wide_p (header)) |
| 616 | bfd_h_put_32 (abfd, header->reserved, buf + 28); |
| 617 | |
| 618 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
| 619 | || bfd_bwrite ((void *) buf, size, abfd) != size) |
| 620 | return FALSE; |
| 621 | |
| 622 | return TRUE; |
| 623 | } |
| 624 | |
| 625 | static int |
| 626 | bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command) |
| 627 | { |
| 628 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
| 629 | unsigned int i; |
| 630 | unsigned char buf[8]; |
| 631 | unsigned int offset; |
| 632 | |
| 633 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) |
| 634 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); |
| 635 | |
| 636 | offset = 8; |
| 637 | for (i = 0; i < cmd->nflavours; i++) |
| 638 | { |
| 639 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); |
| 640 | BFD_ASSERT (cmd->flavours[i].offset == (command->offset + offset + 8)); |
| 641 | |
| 642 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, buf); |
| 643 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), buf + 4); |
| 644 | |
| 645 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
| 646 | || bfd_bwrite ((void *) buf, 8, abfd) != 8) |
| 647 | return -1; |
| 648 | |
| 649 | offset += cmd->flavours[i].size + 8; |
| 650 | } |
| 651 | |
| 652 | return 0; |
| 653 | } |
| 654 | |
| 655 | long |
| 656 | bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
| 657 | asection *asect) |
| 658 | { |
| 659 | return (asect->reloc_count + 1) * sizeof (arelent *); |
| 660 | } |
| 661 | |
| 662 | static int |
| 663 | bfd_mach_o_canonicalize_one_reloc (bfd *abfd, char *buf, |
| 664 | arelent *res, asymbol **syms) |
| 665 | { |
| 666 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 667 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
| 668 | bfd_mach_o_reloc_info reloc; |
| 669 | bfd_vma addr; |
| 670 | bfd_vma symnum; |
| 671 | asymbol **sym; |
| 672 | |
| 673 | addr = bfd_get_32 (abfd, buf + 0); |
| 674 | symnum = bfd_get_32 (abfd, buf + 4); |
| 675 | |
| 676 | if (addr & BFD_MACH_O_SR_SCATTERED) |
| 677 | { |
| 678 | unsigned int j; |
| 679 | |
| 680 | /* Scattered relocation. |
| 681 | Extract section and offset from r_value. */ |
| 682 | res->sym_ptr_ptr = NULL; |
| 683 | res->addend = 0; |
| 684 | for (j = 0; j < mdata->nsects; j++) |
| 685 | { |
| 686 | bfd_mach_o_section *sect = mdata->sections[j]; |
| 687 | if (symnum >= sect->addr && symnum < sect->addr + sect->size) |
| 688 | { |
| 689 | res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr; |
| 690 | res->addend = symnum - sect->addr; |
| 691 | break; |
| 692 | } |
| 693 | } |
| 694 | res->address = BFD_MACH_O_GET_SR_ADDRESS (addr); |
| 695 | reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr); |
| 696 | reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr); |
| 697 | reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL; |
| 698 | reloc.r_scattered = 1; |
| 699 | } |
| 700 | else |
| 701 | { |
| 702 | unsigned int num = BFD_MACH_O_GET_R_SYMBOLNUM (symnum); |
| 703 | res->addend = 0; |
| 704 | res->address = addr; |
| 705 | if (symnum & BFD_MACH_O_R_EXTERN) |
| 706 | { |
| 707 | sym = syms + num; |
| 708 | reloc.r_extern = 1; |
| 709 | } |
| 710 | else |
| 711 | { |
| 712 | BFD_ASSERT (num != 0); |
| 713 | BFD_ASSERT (num <= mdata->nsects); |
| 714 | sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; |
| 715 | /* For a symbol defined in section S, the addend (stored in the |
| 716 | binary) contains the address of the section. To comply with |
| 717 | bfd conventio, substract the section address. |
| 718 | Use the address from the header, so that the user can modify |
| 719 | the vma of the section. */ |
| 720 | res->addend = -mdata->sections[num - 1]->addr; |
| 721 | reloc.r_extern = 0; |
| 722 | } |
| 723 | res->sym_ptr_ptr = sym; |
| 724 | reloc.r_type = BFD_MACH_O_GET_R_TYPE (symnum); |
| 725 | reloc.r_length = BFD_MACH_O_GET_R_LENGTH (symnum); |
| 726 | reloc.r_pcrel = (symnum & BFD_MACH_O_R_PCREL) ? 1 : 0; |
| 727 | reloc.r_scattered = 0; |
| 728 | } |
| 729 | |
| 730 | if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc)) |
| 731 | return -1; |
| 732 | return 0; |
| 733 | } |
| 734 | |
| 735 | static int |
| 736 | bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos, |
| 737 | unsigned long count, |
| 738 | arelent *res, asymbol **syms) |
| 739 | { |
| 740 | unsigned long i; |
| 741 | char *native_relocs; |
| 742 | bfd_size_type native_size; |
| 743 | |
| 744 | /* Allocate and read relocs. */ |
| 745 | native_size = count * BFD_MACH_O_RELENT_SIZE; |
| 746 | native_relocs = bfd_malloc (native_size); |
| 747 | if (native_relocs == NULL) |
| 748 | return -1; |
| 749 | |
| 750 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0 |
| 751 | || bfd_bread (native_relocs, native_size, abfd) != native_size) |
| 752 | goto err; |
| 753 | |
| 754 | for (i = 0; i < count; i++) |
| 755 | { |
| 756 | char *buf = native_relocs + BFD_MACH_O_RELENT_SIZE * i; |
| 757 | |
| 758 | if (bfd_mach_o_canonicalize_one_reloc (abfd, buf, &res[i], syms) < 0) |
| 759 | goto err; |
| 760 | } |
| 761 | free (native_relocs); |
| 762 | return i; |
| 763 | err: |
| 764 | free (native_relocs); |
| 765 | return -1; |
| 766 | } |
| 767 | |
| 768 | long |
| 769 | bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, |
| 770 | arelent **rels, asymbol **syms) |
| 771 | { |
| 772 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
| 773 | unsigned long i; |
| 774 | arelent *res; |
| 775 | |
| 776 | if (asect->reloc_count == 0) |
| 777 | return 0; |
| 778 | |
| 779 | /* No need to go further if we don't know how to read relocs. */ |
| 780 | if (bed->_bfd_mach_o_swap_reloc_in == NULL) |
| 781 | return 0; |
| 782 | |
| 783 | res = bfd_malloc (asect->reloc_count * sizeof (arelent)); |
| 784 | if (res == NULL) |
| 785 | return -1; |
| 786 | |
| 787 | if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos, |
| 788 | asect->reloc_count, res, syms) < 0) |
| 789 | { |
| 790 | free (res); |
| 791 | return -1; |
| 792 | } |
| 793 | |
| 794 | for (i = 0; i < asect->reloc_count; i++) |
| 795 | rels[i] = &res[i]; |
| 796 | rels[i] = NULL; |
| 797 | asect->relocation = res; |
| 798 | |
| 799 | return i; |
| 800 | } |
| 801 | |
| 802 | long |
| 803 | bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd) |
| 804 | { |
| 805 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 806 | |
| 807 | if (mdata->dysymtab == NULL) |
| 808 | return 1; |
| 809 | return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel) |
| 810 | * sizeof (arelent *); |
| 811 | } |
| 812 | |
| 813 | long |
| 814 | bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels, |
| 815 | struct bfd_symbol **syms) |
| 816 | { |
| 817 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 818 | bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab; |
| 819 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
| 820 | unsigned long i; |
| 821 | arelent *res; |
| 822 | |
| 823 | if (dysymtab == NULL) |
| 824 | return 0; |
| 825 | if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0) |
| 826 | return 0; |
| 827 | |
| 828 | /* No need to go further if we don't know how to read relocs. */ |
| 829 | if (bed->_bfd_mach_o_swap_reloc_in == NULL) |
| 830 | return 0; |
| 831 | |
| 832 | res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent)); |
| 833 | if (res == NULL) |
| 834 | return -1; |
| 835 | |
| 836 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff, |
| 837 | dysymtab->nextrel, res, syms) < 0) |
| 838 | { |
| 839 | free (res); |
| 840 | return -1; |
| 841 | } |
| 842 | |
| 843 | if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff, |
| 844 | dysymtab->nlocrel, |
| 845 | res + dysymtab->nextrel, syms) < 0) |
| 846 | { |
| 847 | free (res); |
| 848 | return -1; |
| 849 | } |
| 850 | |
| 851 | for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++) |
| 852 | rels[i] = &res[i]; |
| 853 | rels[i] = NULL; |
| 854 | return i; |
| 855 | } |
| 856 | |
| 857 | static bfd_boolean |
| 858 | bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section) |
| 859 | { |
| 860 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 861 | unsigned int i; |
| 862 | arelent **entries; |
| 863 | asection *sec; |
| 864 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
| 865 | |
| 866 | sec = section->bfdsection; |
| 867 | if (sec->reloc_count == 0) |
| 868 | return TRUE; |
| 869 | |
| 870 | if (bed->_bfd_mach_o_swap_reloc_out == NULL) |
| 871 | return TRUE; |
| 872 | |
| 873 | /* Allocate relocation room. */ |
| 874 | mdata->filelen = FILE_ALIGN(mdata->filelen, 2); |
| 875 | section->nreloc = sec->reloc_count; |
| 876 | sec->rel_filepos = mdata->filelen; |
| 877 | section->reloff = sec->rel_filepos; |
| 878 | mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE; |
| 879 | |
| 880 | if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0) |
| 881 | return FALSE; |
| 882 | |
| 883 | /* Convert and write. */ |
| 884 | entries = section->bfdsection->orelocation; |
| 885 | for (i = 0; i < section->nreloc; i++) |
| 886 | { |
| 887 | arelent *rel = entries[i]; |
| 888 | char buf[8]; |
| 889 | bfd_mach_o_reloc_info info, *pinfo = &info; |
| 890 | |
| 891 | /* Convert relocation to an intermediate representation. */ |
| 892 | if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo)) |
| 893 | return FALSE; |
| 894 | |
| 895 | /* Lower the relocation info. */ |
| 896 | if (pinfo->r_scattered) |
| 897 | { |
| 898 | unsigned long v; |
| 899 | |
| 900 | v = BFD_MACH_O_SR_SCATTERED |
| 901 | | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0) |
| 902 | | BFD_MACH_O_SET_SR_LENGTH(pinfo->r_length) |
| 903 | | BFD_MACH_O_SET_SR_TYPE(pinfo->r_type) |
| 904 | | BFD_MACH_O_SET_SR_ADDRESS(pinfo->r_address); |
| 905 | bfd_put_32 (abfd, v, buf); |
| 906 | bfd_put_32 (abfd, pinfo->r_value, buf + 4); |
| 907 | } |
| 908 | else |
| 909 | { |
| 910 | unsigned long v; |
| 911 | |
| 912 | bfd_put_32 (abfd, pinfo->r_address, buf); |
| 913 | v = BFD_MACH_O_SET_R_SYMBOLNUM (pinfo->r_value) |
| 914 | | (pinfo->r_pcrel ? BFD_MACH_O_R_PCREL : 0) |
| 915 | | BFD_MACH_O_SET_R_LENGTH (pinfo->r_length) |
| 916 | | (pinfo->r_extern ? BFD_MACH_O_R_EXTERN : 0) |
| 917 | | BFD_MACH_O_SET_R_TYPE (pinfo->r_type); |
| 918 | bfd_put_32 (abfd, v, buf + 4); |
| 919 | } |
| 920 | |
| 921 | if (bfd_bwrite ((void *) buf, BFD_MACH_O_RELENT_SIZE, abfd) |
| 922 | != BFD_MACH_O_RELENT_SIZE) |
| 923 | return FALSE; |
| 924 | } |
| 925 | return TRUE; |
| 926 | } |
| 927 | |
| 928 | static int |
| 929 | bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section) |
| 930 | { |
| 931 | unsigned char buf[BFD_MACH_O_SECTION_SIZE]; |
| 932 | |
| 933 | memcpy (buf, section->sectname, 16); |
| 934 | memcpy (buf + 16, section->segname, 16); |
| 935 | bfd_h_put_32 (abfd, section->addr, buf + 32); |
| 936 | bfd_h_put_32 (abfd, section->size, buf + 36); |
| 937 | bfd_h_put_32 (abfd, section->offset, buf + 40); |
| 938 | bfd_h_put_32 (abfd, section->align, buf + 44); |
| 939 | bfd_h_put_32 (abfd, section->reloff, buf + 48); |
| 940 | bfd_h_put_32 (abfd, section->nreloc, buf + 52); |
| 941 | bfd_h_put_32 (abfd, section->flags, buf + 56); |
| 942 | bfd_h_put_32 (abfd, section->reserved1, buf + 60); |
| 943 | bfd_h_put_32 (abfd, section->reserved2, buf + 64); |
| 944 | |
| 945 | if (bfd_bwrite ((void *) buf, BFD_MACH_O_SECTION_SIZE, abfd) |
| 946 | != BFD_MACH_O_SECTION_SIZE) |
| 947 | return -1; |
| 948 | |
| 949 | return 0; |
| 950 | } |
| 951 | |
| 952 | static int |
| 953 | bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section) |
| 954 | { |
| 955 | unsigned char buf[BFD_MACH_O_SECTION_64_SIZE]; |
| 956 | |
| 957 | memcpy (buf, section->sectname, 16); |
| 958 | memcpy (buf + 16, section->segname, 16); |
| 959 | bfd_h_put_64 (abfd, section->addr, buf + 32); |
| 960 | bfd_h_put_64 (abfd, section->size, buf + 40); |
| 961 | bfd_h_put_32 (abfd, section->offset, buf + 48); |
| 962 | bfd_h_put_32 (abfd, section->align, buf + 52); |
| 963 | bfd_h_put_32 (abfd, section->reloff, buf + 56); |
| 964 | bfd_h_put_32 (abfd, section->nreloc, buf + 60); |
| 965 | bfd_h_put_32 (abfd, section->flags, buf + 64); |
| 966 | bfd_h_put_32 (abfd, section->reserved1, buf + 68); |
| 967 | bfd_h_put_32 (abfd, section->reserved2, buf + 72); |
| 968 | bfd_h_put_32 (abfd, section->reserved3, buf + 76); |
| 969 | |
| 970 | if (bfd_bwrite ((void *) buf, BFD_MACH_O_SECTION_64_SIZE, abfd) |
| 971 | != BFD_MACH_O_SECTION_64_SIZE) |
| 972 | return -1; |
| 973 | |
| 974 | return 0; |
| 975 | } |
| 976 | |
| 977 | static int |
| 978 | bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
| 979 | { |
| 980 | unsigned char buf[BFD_MACH_O_LC_SEGMENT_SIZE]; |
| 981 | bfd_mach_o_segment_command *seg = &command->command.segment; |
| 982 | unsigned long i; |
| 983 | |
| 984 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
| 985 | |
| 986 | for (i = 0; i < seg->nsects; i++) |
| 987 | if (!bfd_mach_o_write_relocs (abfd, &seg->sections[i])) |
| 988 | return -1; |
| 989 | |
| 990 | memcpy (buf, seg->segname, 16); |
| 991 | bfd_h_put_32 (abfd, seg->vmaddr, buf + 16); |
| 992 | bfd_h_put_32 (abfd, seg->vmsize, buf + 20); |
| 993 | bfd_h_put_32 (abfd, seg->fileoff, buf + 24); |
| 994 | bfd_h_put_32 (abfd, seg->filesize, buf + 28); |
| 995 | bfd_h_put_32 (abfd, seg->maxprot, buf + 32); |
| 996 | bfd_h_put_32 (abfd, seg->initprot, buf + 36); |
| 997 | bfd_h_put_32 (abfd, seg->nsects, buf + 40); |
| 998 | bfd_h_put_32 (abfd, seg->flags, buf + 44); |
| 999 | |
| 1000 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 1001 | || (bfd_bwrite ((void *) buf, BFD_MACH_O_LC_SEGMENT_SIZE - 8, abfd) |
| 1002 | != BFD_MACH_O_LC_SEGMENT_SIZE - 8)) |
| 1003 | return -1; |
| 1004 | |
| 1005 | for (i = 0; i < seg->nsects; i++) |
| 1006 | if (bfd_mach_o_write_section_32 (abfd, &seg->sections[i])) |
| 1007 | return -1; |
| 1008 | |
| 1009 | return 0; |
| 1010 | } |
| 1011 | |
| 1012 | static int |
| 1013 | bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
| 1014 | { |
| 1015 | unsigned char buf[BFD_MACH_O_LC_SEGMENT_64_SIZE]; |
| 1016 | bfd_mach_o_segment_command *seg = &command->command.segment; |
| 1017 | unsigned long i; |
| 1018 | |
| 1019 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
| 1020 | |
| 1021 | for (i = 0; i < seg->nsects; i++) |
| 1022 | if (!bfd_mach_o_write_relocs (abfd, &seg->sections[i])) |
| 1023 | return -1; |
| 1024 | |
| 1025 | memcpy (buf, seg->segname, 16); |
| 1026 | bfd_h_put_64 (abfd, seg->vmaddr, buf + 16); |
| 1027 | bfd_h_put_64 (abfd, seg->vmsize, buf + 24); |
| 1028 | bfd_h_put_64 (abfd, seg->fileoff, buf + 32); |
| 1029 | bfd_h_put_64 (abfd, seg->filesize, buf + 40); |
| 1030 | bfd_h_put_32 (abfd, seg->maxprot, buf + 48); |
| 1031 | bfd_h_put_32 (abfd, seg->initprot, buf + 52); |
| 1032 | bfd_h_put_32 (abfd, seg->nsects, buf + 56); |
| 1033 | bfd_h_put_32 (abfd, seg->flags, buf + 60); |
| 1034 | |
| 1035 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 1036 | || (bfd_bwrite ((void *) buf, BFD_MACH_O_LC_SEGMENT_64_SIZE - 8, abfd) |
| 1037 | != BFD_MACH_O_LC_SEGMENT_64_SIZE - 8)) |
| 1038 | return -1; |
| 1039 | |
| 1040 | for (i = 0; i < seg->nsects; i++) |
| 1041 | if (bfd_mach_o_write_section_64 (abfd, &seg->sections[i])) |
| 1042 | return -1; |
| 1043 | |
| 1044 | return 0; |
| 1045 | } |
| 1046 | |
| 1047 | static bfd_boolean |
| 1048 | bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
| 1049 | { |
| 1050 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1051 | bfd_mach_o_symtab_command *sym = &command->command.symtab; |
| 1052 | unsigned char buf[16]; |
| 1053 | unsigned long i; |
| 1054 | unsigned int wide = bfd_mach_o_wide_p (abfd); |
| 1055 | unsigned int symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; |
| 1056 | struct bfd_strtab_hash *strtab; |
| 1057 | asymbol **symbols = bfd_get_outsymbols (abfd); |
| 1058 | |
| 1059 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); |
| 1060 | |
| 1061 | /* Write the symbols first. */ |
| 1062 | mdata->filelen = FILE_ALIGN(mdata->filelen, wide ? 3 : 2); |
| 1063 | sym->symoff = mdata->filelen; |
| 1064 | if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0) |
| 1065 | return FALSE; |
| 1066 | |
| 1067 | sym->nsyms = bfd_get_symcount (abfd); |
| 1068 | mdata->filelen += sym->nsyms * symlen; |
| 1069 | |
| 1070 | strtab = _bfd_stringtab_init (); |
| 1071 | if (strtab == NULL) |
| 1072 | return FALSE; |
| 1073 | |
| 1074 | for (i = 0; i < sym->nsyms; i++) |
| 1075 | { |
| 1076 | bfd_size_type str_index; |
| 1077 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
| 1078 | |
| 1079 | /* Compute name index. */ |
| 1080 | /* An index of 0 always means the empty string. */ |
| 1081 | if (s->symbol.name == 0 || s->symbol.name[0] == '\0') |
| 1082 | str_index = 0; |
| 1083 | else |
| 1084 | { |
| 1085 | str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE); |
| 1086 | if (str_index == (bfd_size_type) -1) |
| 1087 | goto err; |
| 1088 | } |
| 1089 | bfd_h_put_32 (abfd, str_index, buf); |
| 1090 | bfd_h_put_8 (abfd, s->n_type, buf + 4); |
| 1091 | bfd_h_put_8 (abfd, s->n_sect, buf + 5); |
| 1092 | bfd_h_put_16 (abfd, s->n_desc, buf + 6); |
| 1093 | if (wide) |
| 1094 | bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, buf + 8); |
| 1095 | else |
| 1096 | bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, buf + 8); |
| 1097 | |
| 1098 | if (bfd_bwrite ((void *) buf, symlen, abfd) != symlen) |
| 1099 | goto err; |
| 1100 | } |
| 1101 | sym->strsize = _bfd_stringtab_size (strtab); |
| 1102 | sym->stroff = mdata->filelen; |
| 1103 | mdata->filelen += sym->strsize; |
| 1104 | |
| 1105 | if (_bfd_stringtab_emit (abfd, strtab) != TRUE) |
| 1106 | goto err; |
| 1107 | _bfd_stringtab_free (strtab); |
| 1108 | |
| 1109 | /* The command. */ |
| 1110 | bfd_h_put_32 (abfd, sym->symoff, buf); |
| 1111 | bfd_h_put_32 (abfd, sym->nsyms, buf + 4); |
| 1112 | bfd_h_put_32 (abfd, sym->stroff, buf + 8); |
| 1113 | bfd_h_put_32 (abfd, sym->strsize, buf + 12); |
| 1114 | |
| 1115 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 1116 | || bfd_bwrite ((void *) buf, 16, abfd) != 16) |
| 1117 | return FALSE; |
| 1118 | |
| 1119 | return TRUE; |
| 1120 | |
| 1121 | err: |
| 1122 | _bfd_stringtab_free (strtab); |
| 1123 | return FALSE; |
| 1124 | } |
| 1125 | |
| 1126 | /* Process the symbols and generate Mach-O specific fields. |
| 1127 | Number them. */ |
| 1128 | |
| 1129 | static bfd_boolean |
| 1130 | bfd_mach_o_mangle_symbols (bfd *abfd) |
| 1131 | { |
| 1132 | unsigned long i; |
| 1133 | asymbol **symbols = bfd_get_outsymbols (abfd); |
| 1134 | |
| 1135 | for (i = 0; i < bfd_get_symcount (abfd); i++) |
| 1136 | { |
| 1137 | bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i]; |
| 1138 | |
| 1139 | if (s->n_type == BFD_MACH_O_N_UNDF && !(s->symbol.flags & BSF_DEBUGGING)) |
| 1140 | { |
| 1141 | /* As genuine Mach-O symbols type shouldn't be N_UNDF (undefined |
| 1142 | symbols should be N_UNDEF | N_EXT), we suppose the back-end |
| 1143 | values haven't been set. */ |
| 1144 | if (s->symbol.section == bfd_abs_section_ptr) |
| 1145 | s->n_type = BFD_MACH_O_N_ABS; |
| 1146 | else if (s->symbol.section == bfd_und_section_ptr) |
| 1147 | { |
| 1148 | s->n_type = BFD_MACH_O_N_UNDF; |
| 1149 | if (s->symbol.flags & BSF_WEAK) |
| 1150 | s->n_desc |= BFD_MACH_O_N_WEAK_REF; |
| 1151 | } |
| 1152 | else if (s->symbol.section == bfd_com_section_ptr) |
| 1153 | s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT; |
| 1154 | else |
| 1155 | s->n_type = BFD_MACH_O_N_SECT; |
| 1156 | |
| 1157 | if (s->symbol.flags & BSF_GLOBAL) |
| 1158 | s->n_type |= BFD_MACH_O_N_EXT; |
| 1159 | } |
| 1160 | |
| 1161 | /* Compute section index. */ |
| 1162 | if (s->symbol.section != bfd_abs_section_ptr |
| 1163 | && s->symbol.section != bfd_und_section_ptr |
| 1164 | && s->symbol.section != bfd_com_section_ptr) |
| 1165 | s->n_sect = s->symbol.section->target_index; |
| 1166 | |
| 1167 | /* Number symbols. */ |
| 1168 | s->symbol.udata.i = i; |
| 1169 | } |
| 1170 | return TRUE; |
| 1171 | } |
| 1172 | |
| 1173 | bfd_boolean |
| 1174 | bfd_mach_o_write_contents (bfd *abfd) |
| 1175 | { |
| 1176 | unsigned int i; |
| 1177 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1178 | |
| 1179 | if (mdata->header.ncmds == 0) |
| 1180 | if (!bfd_mach_o_build_commands (abfd)) |
| 1181 | return FALSE; |
| 1182 | |
| 1183 | /* Now write header information. */ |
| 1184 | if (mdata->header.filetype == 0) |
| 1185 | { |
| 1186 | if (abfd->flags & EXEC_P) |
| 1187 | mdata->header.filetype = BFD_MACH_O_MH_EXECUTE; |
| 1188 | else if (abfd->flags & DYNAMIC) |
| 1189 | mdata->header.filetype = BFD_MACH_O_MH_DYLIB; |
| 1190 | else |
| 1191 | mdata->header.filetype = BFD_MACH_O_MH_OBJECT; |
| 1192 | } |
| 1193 | if (!bfd_mach_o_write_header (abfd, &mdata->header)) |
| 1194 | return FALSE; |
| 1195 | |
| 1196 | /* Assign a number to each symbols. */ |
| 1197 | if (!bfd_mach_o_mangle_symbols (abfd)) |
| 1198 | return FALSE; |
| 1199 | |
| 1200 | for (i = 0; i < mdata->header.ncmds; i++) |
| 1201 | { |
| 1202 | unsigned char buf[8]; |
| 1203 | bfd_mach_o_load_command *cur = &mdata->commands[i]; |
| 1204 | unsigned long typeflag; |
| 1205 | |
| 1206 | typeflag = cur->type | (cur->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0); |
| 1207 | |
| 1208 | bfd_h_put_32 (abfd, typeflag, buf); |
| 1209 | bfd_h_put_32 (abfd, cur->len, buf + 4); |
| 1210 | |
| 1211 | if (bfd_seek (abfd, cur->offset, SEEK_SET) != 0 |
| 1212 | || bfd_bwrite ((void *) buf, 8, abfd) != 8) |
| 1213 | return FALSE; |
| 1214 | |
| 1215 | switch (cur->type) |
| 1216 | { |
| 1217 | case BFD_MACH_O_LC_SEGMENT: |
| 1218 | if (bfd_mach_o_write_segment_32 (abfd, cur) != 0) |
| 1219 | return FALSE; |
| 1220 | break; |
| 1221 | case BFD_MACH_O_LC_SEGMENT_64: |
| 1222 | if (bfd_mach_o_write_segment_64 (abfd, cur) != 0) |
| 1223 | return FALSE; |
| 1224 | break; |
| 1225 | case BFD_MACH_O_LC_SYMTAB: |
| 1226 | if (!bfd_mach_o_write_symtab (abfd, cur)) |
| 1227 | return FALSE; |
| 1228 | break; |
| 1229 | case BFD_MACH_O_LC_SYMSEG: |
| 1230 | break; |
| 1231 | case BFD_MACH_O_LC_THREAD: |
| 1232 | case BFD_MACH_O_LC_UNIXTHREAD: |
| 1233 | if (bfd_mach_o_write_thread (abfd, cur) != 0) |
| 1234 | return FALSE; |
| 1235 | break; |
| 1236 | case BFD_MACH_O_LC_LOADFVMLIB: |
| 1237 | case BFD_MACH_O_LC_IDFVMLIB: |
| 1238 | case BFD_MACH_O_LC_IDENT: |
| 1239 | case BFD_MACH_O_LC_FVMFILE: |
| 1240 | case BFD_MACH_O_LC_PREPAGE: |
| 1241 | case BFD_MACH_O_LC_DYSYMTAB: |
| 1242 | case BFD_MACH_O_LC_LOAD_DYLIB: |
| 1243 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
| 1244 | case BFD_MACH_O_LC_ID_DYLIB: |
| 1245 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
| 1246 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
| 1247 | case BFD_MACH_O_LC_ID_DYLINKER: |
| 1248 | case BFD_MACH_O_LC_PREBOUND_DYLIB: |
| 1249 | case BFD_MACH_O_LC_ROUTINES: |
| 1250 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
| 1251 | break; |
| 1252 | default: |
| 1253 | (*_bfd_error_handler) (_("unable to write unknown load command 0x%lx"), |
| 1254 | (unsigned long) cur->type); |
| 1255 | return FALSE; |
| 1256 | } |
| 1257 | } |
| 1258 | |
| 1259 | return TRUE; |
| 1260 | } |
| 1261 | |
| 1262 | /* Build Mach-O load commands from the sections. */ |
| 1263 | |
| 1264 | bfd_boolean |
| 1265 | bfd_mach_o_build_commands (bfd *abfd) |
| 1266 | { |
| 1267 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1268 | unsigned int wide = mach_o_wide_p (&mdata->header); |
| 1269 | bfd_mach_o_segment_command *seg; |
| 1270 | bfd_mach_o_section *sections; |
| 1271 | asection *sec; |
| 1272 | bfd_mach_o_load_command *cmd; |
| 1273 | bfd_mach_o_load_command *symtab_cmd; |
| 1274 | int target_index; |
| 1275 | |
| 1276 | /* Return now if commands are already built. */ |
| 1277 | if (mdata->header.ncmds) |
| 1278 | return FALSE; |
| 1279 | |
| 1280 | /* Very simple version: 1 command (segment) containing all sections. */ |
| 1281 | mdata->header.ncmds = 2; |
| 1282 | mdata->commands = bfd_alloc (abfd, mdata->header.ncmds |
| 1283 | * sizeof (bfd_mach_o_load_command)); |
| 1284 | if (mdata->commands == NULL) |
| 1285 | return FALSE; |
| 1286 | cmd = &mdata->commands[0]; |
| 1287 | seg = &cmd->command.segment; |
| 1288 | |
| 1289 | seg->nsects = bfd_count_sections (abfd); |
| 1290 | sections = bfd_alloc (abfd, seg->nsects * sizeof (bfd_mach_o_section)); |
| 1291 | if (sections == NULL) |
| 1292 | return FALSE; |
| 1293 | seg->sections = sections; |
| 1294 | |
| 1295 | /* Set segment command. */ |
| 1296 | if (wide) |
| 1297 | { |
| 1298 | cmd->type = BFD_MACH_O_LC_SEGMENT_64; |
| 1299 | cmd->offset = BFD_MACH_O_HEADER_64_SIZE; |
| 1300 | cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE |
| 1301 | + BFD_MACH_O_SECTION_64_SIZE * seg->nsects; |
| 1302 | } |
| 1303 | else |
| 1304 | { |
| 1305 | cmd->type = BFD_MACH_O_LC_SEGMENT; |
| 1306 | cmd->offset = BFD_MACH_O_HEADER_SIZE; |
| 1307 | cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE |
| 1308 | + BFD_MACH_O_SECTION_SIZE * seg->nsects; |
| 1309 | } |
| 1310 | cmd->type_required = FALSE; |
| 1311 | mdata->header.sizeofcmds = cmd->len; |
| 1312 | mdata->filelen = cmd->offset + cmd->len; |
| 1313 | |
| 1314 | /* Set symtab command. */ |
| 1315 | symtab_cmd = &mdata->commands[1]; |
| 1316 | |
| 1317 | symtab_cmd->type = BFD_MACH_O_LC_SYMTAB; |
| 1318 | symtab_cmd->offset = cmd->offset + cmd->len; |
| 1319 | symtab_cmd->len = 6 * 4; |
| 1320 | symtab_cmd->type_required = FALSE; |
| 1321 | |
| 1322 | mdata->header.sizeofcmds += symtab_cmd->len; |
| 1323 | mdata->filelen += symtab_cmd->len; |
| 1324 | |
| 1325 | /* Fill segment command. */ |
| 1326 | memset (seg->segname, 0, sizeof (seg->segname)); |
| 1327 | seg->vmaddr = 0; |
| 1328 | seg->fileoff = mdata->filelen; |
| 1329 | seg->filesize = 0; |
| 1330 | seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE |
| 1331 | | BFD_MACH_O_PROT_EXECUTE; |
| 1332 | seg->initprot = seg->maxprot; |
| 1333 | seg->flags = 0; |
| 1334 | |
| 1335 | /* Create Mach-O sections. */ |
| 1336 | target_index = 0; |
| 1337 | for (sec = abfd->sections; sec; sec = sec->next) |
| 1338 | { |
| 1339 | sections->bfdsection = sec; |
| 1340 | bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, sections); |
| 1341 | sections->addr = bfd_get_section_vma (abfd, sec); |
| 1342 | sections->size = bfd_get_section_size (sec); |
| 1343 | sections->align = bfd_get_section_alignment (abfd, sec); |
| 1344 | |
| 1345 | if (sections->size != 0) |
| 1346 | { |
| 1347 | mdata->filelen = FILE_ALIGN (mdata->filelen, sections->align); |
| 1348 | sections->offset = mdata->filelen; |
| 1349 | } |
| 1350 | else |
| 1351 | sections->offset = 0; |
| 1352 | sections->reloff = 0; |
| 1353 | sections->nreloc = 0; |
| 1354 | sections->reserved1 = 0; |
| 1355 | sections->reserved2 = 0; |
| 1356 | sections->reserved3 = 0; |
| 1357 | |
| 1358 | sec->filepos = sections->offset; |
| 1359 | sec->target_index = ++target_index; |
| 1360 | |
| 1361 | mdata->filelen += sections->size; |
| 1362 | sections++; |
| 1363 | } |
| 1364 | seg->filesize = mdata->filelen - seg->fileoff; |
| 1365 | seg->vmsize = seg->filesize; |
| 1366 | |
| 1367 | return TRUE; |
| 1368 | } |
| 1369 | |
| 1370 | /* Set the contents of a section. */ |
| 1371 | |
| 1372 | bfd_boolean |
| 1373 | bfd_mach_o_set_section_contents (bfd *abfd, |
| 1374 | asection *section, |
| 1375 | const void * location, |
| 1376 | file_ptr offset, |
| 1377 | bfd_size_type count) |
| 1378 | { |
| 1379 | file_ptr pos; |
| 1380 | |
| 1381 | /* This must be done first, because bfd_set_section_contents is |
| 1382 | going to set output_has_begun to TRUE. */ |
| 1383 | if (! abfd->output_has_begun && ! bfd_mach_o_build_commands (abfd)) |
| 1384 | return FALSE; |
| 1385 | |
| 1386 | if (count == 0) |
| 1387 | return TRUE; |
| 1388 | |
| 1389 | pos = section->filepos + offset; |
| 1390 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 |
| 1391 | || bfd_bwrite (location, count, abfd) != count) |
| 1392 | return FALSE; |
| 1393 | |
| 1394 | return TRUE; |
| 1395 | } |
| 1396 | |
| 1397 | int |
| 1398 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
| 1399 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
| 1400 | { |
| 1401 | return 0; |
| 1402 | } |
| 1403 | |
| 1404 | /* Make an empty symbol. This is required only because |
| 1405 | bfd_make_section_anyway wants to create a symbol for the section. */ |
| 1406 | |
| 1407 | asymbol * |
| 1408 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
| 1409 | { |
| 1410 | asymbol *new_symbol; |
| 1411 | |
| 1412 | new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol)); |
| 1413 | if (new_symbol == NULL) |
| 1414 | return new_symbol; |
| 1415 | new_symbol->the_bfd = abfd; |
| 1416 | new_symbol->udata.i = 0; |
| 1417 | return new_symbol; |
| 1418 | } |
| 1419 | |
| 1420 | static bfd_boolean |
| 1421 | bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header) |
| 1422 | { |
| 1423 | unsigned char buf[32]; |
| 1424 | unsigned int size; |
| 1425 | bfd_vma (*get32) (const void *) = NULL; |
| 1426 | |
| 1427 | /* Just read the magic number. */ |
| 1428 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
| 1429 | || bfd_bread ((void *) buf, 4, abfd) != 4) |
| 1430 | return FALSE; |
| 1431 | |
| 1432 | if (bfd_getb32 (buf) == BFD_MACH_O_MH_MAGIC) |
| 1433 | { |
| 1434 | header->byteorder = BFD_ENDIAN_BIG; |
| 1435 | header->magic = BFD_MACH_O_MH_MAGIC; |
| 1436 | header->version = 1; |
| 1437 | get32 = bfd_getb32; |
| 1438 | } |
| 1439 | else if (bfd_getl32 (buf) == BFD_MACH_O_MH_MAGIC) |
| 1440 | { |
| 1441 | header->byteorder = BFD_ENDIAN_LITTLE; |
| 1442 | header->magic = BFD_MACH_O_MH_MAGIC; |
| 1443 | header->version = 1; |
| 1444 | get32 = bfd_getl32; |
| 1445 | } |
| 1446 | else if (bfd_getb32 (buf) == BFD_MACH_O_MH_MAGIC_64) |
| 1447 | { |
| 1448 | header->byteorder = BFD_ENDIAN_BIG; |
| 1449 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
| 1450 | header->version = 2; |
| 1451 | get32 = bfd_getb32; |
| 1452 | } |
| 1453 | else if (bfd_getl32 (buf) == BFD_MACH_O_MH_MAGIC_64) |
| 1454 | { |
| 1455 | header->byteorder = BFD_ENDIAN_LITTLE; |
| 1456 | header->magic = BFD_MACH_O_MH_MAGIC_64; |
| 1457 | header->version = 2; |
| 1458 | get32 = bfd_getl32; |
| 1459 | } |
| 1460 | else |
| 1461 | { |
| 1462 | header->byteorder = BFD_ENDIAN_UNKNOWN; |
| 1463 | return FALSE; |
| 1464 | } |
| 1465 | |
| 1466 | /* Once the size of the header is known, read the full header. */ |
| 1467 | size = mach_o_wide_p (header) ? |
| 1468 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
| 1469 | |
| 1470 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
| 1471 | || bfd_bread ((void *) buf, size, abfd) != size) |
| 1472 | return FALSE; |
| 1473 | |
| 1474 | header->cputype = (*get32) (buf + 4); |
| 1475 | header->cpusubtype = (*get32) (buf + 8); |
| 1476 | header->filetype = (*get32) (buf + 12); |
| 1477 | header->ncmds = (*get32) (buf + 16); |
| 1478 | header->sizeofcmds = (*get32) (buf + 20); |
| 1479 | header->flags = (*get32) (buf + 24); |
| 1480 | |
| 1481 | if (mach_o_wide_p (header)) |
| 1482 | header->reserved = (*get32) (buf + 28); |
| 1483 | |
| 1484 | return TRUE; |
| 1485 | } |
| 1486 | |
| 1487 | static asection * |
| 1488 | bfd_mach_o_make_bfd_section (bfd *abfd, bfd_mach_o_section *section, |
| 1489 | unsigned long prot) |
| 1490 | { |
| 1491 | asection *bfdsec; |
| 1492 | char *sname; |
| 1493 | flagword flags; |
| 1494 | |
| 1495 | bfd_mach_o_convert_section_name_to_bfd (abfd, section, &sname, &flags); |
| 1496 | if (sname == NULL) |
| 1497 | return NULL; |
| 1498 | |
| 1499 | if (flags == SEC_NO_FLAGS) |
| 1500 | { |
| 1501 | /* Try to guess flags. */ |
| 1502 | if (section->flags & BFD_MACH_O_S_ATTR_DEBUG) |
| 1503 | flags = SEC_DEBUGGING; |
| 1504 | else |
| 1505 | { |
| 1506 | flags = SEC_ALLOC; |
| 1507 | if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
| 1508 | != BFD_MACH_O_S_ZEROFILL) |
| 1509 | { |
| 1510 | flags |= SEC_LOAD; |
| 1511 | if (prot & BFD_MACH_O_PROT_EXECUTE) |
| 1512 | flags |= SEC_CODE; |
| 1513 | if (prot & BFD_MACH_O_PROT_WRITE) |
| 1514 | flags |= SEC_DATA; |
| 1515 | else if (prot & BFD_MACH_O_PROT_READ) |
| 1516 | flags |= SEC_READONLY; |
| 1517 | } |
| 1518 | } |
| 1519 | } |
| 1520 | else |
| 1521 | { |
| 1522 | if ((flags & SEC_DEBUGGING) == 0) |
| 1523 | flags |= SEC_ALLOC; |
| 1524 | } |
| 1525 | |
| 1526 | if (section->offset != 0) |
| 1527 | flags |= SEC_HAS_CONTENTS; |
| 1528 | if (section->nreloc != 0) |
| 1529 | flags |= SEC_RELOC; |
| 1530 | |
| 1531 | bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, flags); |
| 1532 | if (bfdsec == NULL) |
| 1533 | return NULL; |
| 1534 | |
| 1535 | bfdsec->vma = section->addr; |
| 1536 | bfdsec->lma = section->addr; |
| 1537 | bfdsec->size = section->size; |
| 1538 | bfdsec->filepos = section->offset; |
| 1539 | bfdsec->alignment_power = section->align; |
| 1540 | bfdsec->segment_mark = 0; |
| 1541 | bfdsec->reloc_count = section->nreloc; |
| 1542 | bfdsec->rel_filepos = section->reloff; |
| 1543 | |
| 1544 | return bfdsec; |
| 1545 | } |
| 1546 | |
| 1547 | static int |
| 1548 | bfd_mach_o_read_section_32 (bfd *abfd, |
| 1549 | bfd_mach_o_section *section, |
| 1550 | unsigned int offset, |
| 1551 | unsigned long prot) |
| 1552 | { |
| 1553 | unsigned char buf[BFD_MACH_O_SECTION_SIZE]; |
| 1554 | |
| 1555 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 |
| 1556 | || (bfd_bread ((void *) buf, BFD_MACH_O_SECTION_SIZE, abfd) |
| 1557 | != BFD_MACH_O_SECTION_SIZE)) |
| 1558 | return -1; |
| 1559 | |
| 1560 | memcpy (section->sectname, buf, 16); |
| 1561 | section->sectname[16] = '\0'; |
| 1562 | memcpy (section->segname, buf + 16, 16); |
| 1563 | section->segname[16] = '\0'; |
| 1564 | section->addr = bfd_h_get_32 (abfd, buf + 32); |
| 1565 | section->size = bfd_h_get_32 (abfd, buf + 36); |
| 1566 | section->offset = bfd_h_get_32 (abfd, buf + 40); |
| 1567 | section->align = bfd_h_get_32 (abfd, buf + 44); |
| 1568 | section->reloff = bfd_h_get_32 (abfd, buf + 48); |
| 1569 | section->nreloc = bfd_h_get_32 (abfd, buf + 52); |
| 1570 | section->flags = bfd_h_get_32 (abfd, buf + 56); |
| 1571 | section->reserved1 = bfd_h_get_32 (abfd, buf + 60); |
| 1572 | section->reserved2 = bfd_h_get_32 (abfd, buf + 64); |
| 1573 | section->reserved3 = 0; |
| 1574 | section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section, prot); |
| 1575 | |
| 1576 | if (section->bfdsection == NULL) |
| 1577 | return -1; |
| 1578 | |
| 1579 | return 0; |
| 1580 | } |
| 1581 | |
| 1582 | static int |
| 1583 | bfd_mach_o_read_section_64 (bfd *abfd, |
| 1584 | bfd_mach_o_section *section, |
| 1585 | unsigned int offset, |
| 1586 | unsigned long prot) |
| 1587 | { |
| 1588 | unsigned char buf[BFD_MACH_O_SECTION_64_SIZE]; |
| 1589 | |
| 1590 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 |
| 1591 | || (bfd_bread ((void *) buf, BFD_MACH_O_SECTION_64_SIZE, abfd) |
| 1592 | != BFD_MACH_O_SECTION_64_SIZE)) |
| 1593 | return -1; |
| 1594 | |
| 1595 | memcpy (section->sectname, buf, 16); |
| 1596 | section->sectname[16] = '\0'; |
| 1597 | memcpy (section->segname, buf + 16, 16); |
| 1598 | section->segname[16] = '\0'; |
| 1599 | section->addr = bfd_h_get_64 (abfd, buf + 32); |
| 1600 | section->size = bfd_h_get_64 (abfd, buf + 40); |
| 1601 | section->offset = bfd_h_get_32 (abfd, buf + 48); |
| 1602 | section->align = bfd_h_get_32 (abfd, buf + 52); |
| 1603 | section->reloff = bfd_h_get_32 (abfd, buf + 56); |
| 1604 | section->nreloc = bfd_h_get_32 (abfd, buf + 60); |
| 1605 | section->flags = bfd_h_get_32 (abfd, buf + 64); |
| 1606 | section->reserved1 = bfd_h_get_32 (abfd, buf + 68); |
| 1607 | section->reserved2 = bfd_h_get_32 (abfd, buf + 72); |
| 1608 | section->reserved3 = bfd_h_get_32 (abfd, buf + 76); |
| 1609 | section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section, prot); |
| 1610 | |
| 1611 | if (section->bfdsection == NULL) |
| 1612 | return -1; |
| 1613 | |
| 1614 | return 0; |
| 1615 | } |
| 1616 | |
| 1617 | static int |
| 1618 | bfd_mach_o_read_section (bfd *abfd, |
| 1619 | bfd_mach_o_section *section, |
| 1620 | unsigned int offset, |
| 1621 | unsigned long prot, |
| 1622 | unsigned int wide) |
| 1623 | { |
| 1624 | if (wide) |
| 1625 | return bfd_mach_o_read_section_64 (abfd, section, offset, prot); |
| 1626 | else |
| 1627 | return bfd_mach_o_read_section_32 (abfd, section, offset, prot); |
| 1628 | } |
| 1629 | |
| 1630 | static int |
| 1631 | bfd_mach_o_read_symtab_symbol (bfd *abfd, |
| 1632 | bfd_mach_o_symtab_command *sym, |
| 1633 | bfd_mach_o_asymbol *s, |
| 1634 | unsigned long i) |
| 1635 | { |
| 1636 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1637 | unsigned int wide = mach_o_wide_p (&mdata->header); |
| 1638 | unsigned int symwidth = |
| 1639 | wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE; |
| 1640 | unsigned int symoff = sym->symoff + (i * symwidth); |
| 1641 | unsigned char buf[16]; |
| 1642 | unsigned char type = -1; |
| 1643 | unsigned char section = -1; |
| 1644 | short desc = -1; |
| 1645 | symvalue value = -1; |
| 1646 | unsigned long stroff = -1; |
| 1647 | unsigned int symtype = -1; |
| 1648 | |
| 1649 | BFD_ASSERT (sym->strtab != NULL); |
| 1650 | |
| 1651 | if (bfd_seek (abfd, symoff, SEEK_SET) != 0 |
| 1652 | || bfd_bread ((void *) buf, symwidth, abfd) != symwidth) |
| 1653 | { |
| 1654 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"), |
| 1655 | symwidth, (unsigned long) symoff); |
| 1656 | return -1; |
| 1657 | } |
| 1658 | |
| 1659 | stroff = bfd_h_get_32 (abfd, buf); |
| 1660 | type = bfd_h_get_8 (abfd, buf + 4); |
| 1661 | symtype = type & BFD_MACH_O_N_TYPE; |
| 1662 | section = bfd_h_get_8 (abfd, buf + 5); |
| 1663 | desc = bfd_h_get_16 (abfd, buf + 6); |
| 1664 | if (wide) |
| 1665 | value = bfd_h_get_64 (abfd, buf + 8); |
| 1666 | else |
| 1667 | value = bfd_h_get_32 (abfd, buf + 8); |
| 1668 | |
| 1669 | if (stroff >= sym->strsize) |
| 1670 | { |
| 1671 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: symbol name out of range (%lu >= %lu)"), |
| 1672 | (unsigned long) stroff, |
| 1673 | (unsigned long) sym->strsize); |
| 1674 | return -1; |
| 1675 | } |
| 1676 | |
| 1677 | s->symbol.the_bfd = abfd; |
| 1678 | s->symbol.name = sym->strtab + stroff; |
| 1679 | s->symbol.value = value; |
| 1680 | s->symbol.flags = 0x0; |
| 1681 | s->symbol.udata.i = 0; |
| 1682 | s->n_type = type; |
| 1683 | s->n_sect = section; |
| 1684 | s->n_desc = desc; |
| 1685 | |
| 1686 | if (type & BFD_MACH_O_N_STAB) |
| 1687 | { |
| 1688 | s->symbol.flags |= BSF_DEBUGGING; |
| 1689 | s->symbol.section = bfd_und_section_ptr; |
| 1690 | switch (type) |
| 1691 | { |
| 1692 | case N_FUN: |
| 1693 | case N_STSYM: |
| 1694 | case N_LCSYM: |
| 1695 | case N_BNSYM: |
| 1696 | case N_SLINE: |
| 1697 | case N_ENSYM: |
| 1698 | case N_ECOMM: |
| 1699 | case N_ECOML: |
| 1700 | case N_GSYM: |
| 1701 | if ((section > 0) && (section <= mdata->nsects)) |
| 1702 | { |
| 1703 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
| 1704 | s->symbol.value = |
| 1705 | s->symbol.value - mdata->sections[section - 1]->addr; |
| 1706 | } |
| 1707 | break; |
| 1708 | } |
| 1709 | } |
| 1710 | else |
| 1711 | { |
| 1712 | if (type & BFD_MACH_O_N_PEXT) |
| 1713 | s->symbol.flags |= BSF_GLOBAL; |
| 1714 | |
| 1715 | if (type & BFD_MACH_O_N_EXT) |
| 1716 | s->symbol.flags |= BSF_GLOBAL; |
| 1717 | |
| 1718 | if (!(type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))) |
| 1719 | s->symbol.flags |= BSF_LOCAL; |
| 1720 | |
| 1721 | switch (symtype) |
| 1722 | { |
| 1723 | case BFD_MACH_O_N_UNDF: |
| 1724 | if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT) |
| 1725 | && s->symbol.value != 0) |
| 1726 | { |
| 1727 | /* A common symbol. */ |
| 1728 | s->symbol.section = bfd_com_section_ptr; |
| 1729 | s->symbol.flags = BSF_NO_FLAGS; |
| 1730 | } |
| 1731 | else |
| 1732 | { |
| 1733 | s->symbol.section = bfd_und_section_ptr; |
| 1734 | if (s->n_desc & BFD_MACH_O_N_WEAK_REF) |
| 1735 | s->symbol.flags |= BSF_WEAK; |
| 1736 | } |
| 1737 | break; |
| 1738 | case BFD_MACH_O_N_PBUD: |
| 1739 | s->symbol.section = bfd_und_section_ptr; |
| 1740 | break; |
| 1741 | case BFD_MACH_O_N_ABS: |
| 1742 | s->symbol.section = bfd_abs_section_ptr; |
| 1743 | break; |
| 1744 | case BFD_MACH_O_N_SECT: |
| 1745 | if ((section > 0) && (section <= mdata->nsects)) |
| 1746 | { |
| 1747 | s->symbol.section = mdata->sections[section - 1]->bfdsection; |
| 1748 | s->symbol.value = |
| 1749 | s->symbol.value - mdata->sections[section - 1]->addr; |
| 1750 | } |
| 1751 | else |
| 1752 | { |
| 1753 | /* Mach-O uses 0 to mean "no section"; not an error. */ |
| 1754 | if (section != 0) |
| 1755 | { |
| 1756 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: " |
| 1757 | "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"), |
| 1758 | s->symbol.name, section, mdata->nsects); |
| 1759 | } |
| 1760 | s->symbol.section = bfd_und_section_ptr; |
| 1761 | } |
| 1762 | break; |
| 1763 | case BFD_MACH_O_N_INDR: |
| 1764 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: " |
| 1765 | "symbol \"%s\" is unsupported 'indirect' reference: setting to undefined"), |
| 1766 | s->symbol.name); |
| 1767 | s->symbol.section = bfd_und_section_ptr; |
| 1768 | break; |
| 1769 | default: |
| 1770 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: " |
| 1771 | "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"), |
| 1772 | s->symbol.name, symtype); |
| 1773 | s->symbol.section = bfd_und_section_ptr; |
| 1774 | break; |
| 1775 | } |
| 1776 | } |
| 1777 | |
| 1778 | return 0; |
| 1779 | } |
| 1780 | |
| 1781 | static int |
| 1782 | bfd_mach_o_read_symtab_strtab (bfd *abfd) |
| 1783 | { |
| 1784 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1785 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
| 1786 | |
| 1787 | /* Fail if there is no symtab. */ |
| 1788 | if (sym == NULL) |
| 1789 | return -1; |
| 1790 | |
| 1791 | /* Success if already loaded. */ |
| 1792 | if (sym->strtab) |
| 1793 | return 0; |
| 1794 | |
| 1795 | if (abfd->flags & BFD_IN_MEMORY) |
| 1796 | { |
| 1797 | struct bfd_in_memory *b; |
| 1798 | |
| 1799 | b = (struct bfd_in_memory *) abfd->iostream; |
| 1800 | |
| 1801 | if ((sym->stroff + sym->strsize) > b->size) |
| 1802 | { |
| 1803 | bfd_set_error (bfd_error_file_truncated); |
| 1804 | return -1; |
| 1805 | } |
| 1806 | sym->strtab = (char *) b->buffer + sym->stroff; |
| 1807 | } |
| 1808 | else |
| 1809 | { |
| 1810 | sym->strtab = bfd_alloc (abfd, sym->strsize); |
| 1811 | if (sym->strtab == NULL) |
| 1812 | return -1; |
| 1813 | |
| 1814 | if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0 |
| 1815 | || bfd_bread ((void *) sym->strtab, sym->strsize, abfd) != sym->strsize) |
| 1816 | { |
| 1817 | bfd_set_error (bfd_error_file_truncated); |
| 1818 | return -1; |
| 1819 | } |
| 1820 | } |
| 1821 | |
| 1822 | return 0; |
| 1823 | } |
| 1824 | |
| 1825 | static int |
| 1826 | bfd_mach_o_read_symtab_symbols (bfd *abfd) |
| 1827 | { |
| 1828 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1829 | bfd_mach_o_symtab_command *sym = mdata->symtab; |
| 1830 | unsigned long i; |
| 1831 | int ret; |
| 1832 | |
| 1833 | if (sym->symbols) |
| 1834 | return 0; |
| 1835 | |
| 1836 | sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol)); |
| 1837 | |
| 1838 | if (sym->symbols == NULL) |
| 1839 | { |
| 1840 | (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols")); |
| 1841 | return -1; |
| 1842 | } |
| 1843 | |
| 1844 | ret = bfd_mach_o_read_symtab_strtab (abfd); |
| 1845 | if (ret != 0) |
| 1846 | return ret; |
| 1847 | |
| 1848 | for (i = 0; i < sym->nsyms; i++) |
| 1849 | { |
| 1850 | ret = bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i); |
| 1851 | if (ret != 0) |
| 1852 | return ret; |
| 1853 | } |
| 1854 | |
| 1855 | return 0; |
| 1856 | } |
| 1857 | |
| 1858 | int |
| 1859 | bfd_mach_o_read_dysymtab_symbol (bfd *abfd, |
| 1860 | bfd_mach_o_dysymtab_command *dysym, |
| 1861 | bfd_mach_o_symtab_command *sym, |
| 1862 | bfd_mach_o_asymbol *s, |
| 1863 | unsigned long i) |
| 1864 | { |
| 1865 | unsigned long isymoff = dysym->indirectsymoff + (i * 4); |
| 1866 | unsigned long sym_index; |
| 1867 | unsigned char buf[4]; |
| 1868 | |
| 1869 | BFD_ASSERT (i < dysym->nindirectsyms); |
| 1870 | |
| 1871 | if (bfd_seek (abfd, isymoff, SEEK_SET) != 0 |
| 1872 | || bfd_bread ((void *) buf, 4, abfd) != 4) |
| 1873 | { |
| 1874 | (*_bfd_error_handler) (_("bfd_mach_o_read_dysymtab_symbol: unable to read %lu bytes at %lu"), |
| 1875 | (unsigned long) 4, isymoff); |
| 1876 | return -1; |
| 1877 | } |
| 1878 | sym_index = bfd_h_get_32 (abfd, buf); |
| 1879 | |
| 1880 | return bfd_mach_o_read_symtab_symbol (abfd, sym, s, sym_index); |
| 1881 | } |
| 1882 | |
| 1883 | static const char * |
| 1884 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
| 1885 | { |
| 1886 | switch ((int) flavour) |
| 1887 | { |
| 1888 | case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32"; |
| 1889 | case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32"; |
| 1890 | case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32"; |
| 1891 | case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64"; |
| 1892 | case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64"; |
| 1893 | case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64"; |
| 1894 | case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE"; |
| 1895 | case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE"; |
| 1896 | case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE"; |
| 1897 | case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32"; |
| 1898 | case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64"; |
| 1899 | case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE"; |
| 1900 | case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE"; |
| 1901 | default: return "UNKNOWN"; |
| 1902 | } |
| 1903 | } |
| 1904 | |
| 1905 | static const char * |
| 1906 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
| 1907 | { |
| 1908 | switch ((int) flavour) |
| 1909 | { |
| 1910 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
| 1911 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; |
| 1912 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; |
| 1913 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; |
| 1914 | case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64"; |
| 1915 | case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64"; |
| 1916 | default: return "UNKNOWN"; |
| 1917 | } |
| 1918 | } |
| 1919 | |
| 1920 | static int |
| 1921 | bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command) |
| 1922 | { |
| 1923 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; |
| 1924 | unsigned char buf[4]; |
| 1925 | unsigned int nameoff; |
| 1926 | |
| 1927 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER) |
| 1928 | || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER)); |
| 1929 | |
| 1930 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 1931 | || bfd_bread ((void *) buf, 4, abfd) != 4) |
| 1932 | return -1; |
| 1933 | |
| 1934 | nameoff = bfd_h_get_32 (abfd, buf + 0); |
| 1935 | |
| 1936 | cmd->name_offset = command->offset + nameoff; |
| 1937 | cmd->name_len = command->len - nameoff; |
| 1938 | cmd->name_str = bfd_alloc (abfd, cmd->name_len); |
| 1939 | if (cmd->name_str == NULL) |
| 1940 | return -1; |
| 1941 | if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0 |
| 1942 | || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len) |
| 1943 | return -1; |
| 1944 | return 0; |
| 1945 | } |
| 1946 | |
| 1947 | static int |
| 1948 | bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
| 1949 | { |
| 1950 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; |
| 1951 | unsigned char buf[16]; |
| 1952 | unsigned int nameoff; |
| 1953 | |
| 1954 | switch (command->type) |
| 1955 | { |
| 1956 | case BFD_MACH_O_LC_LOAD_DYLIB: |
| 1957 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
| 1958 | case BFD_MACH_O_LC_ID_DYLIB: |
| 1959 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
| 1960 | break; |
| 1961 | default: |
| 1962 | BFD_FAIL (); |
| 1963 | return -1; |
| 1964 | } |
| 1965 | |
| 1966 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 1967 | || bfd_bread ((void *) buf, 16, abfd) != 16) |
| 1968 | return -1; |
| 1969 | |
| 1970 | nameoff = bfd_h_get_32 (abfd, buf + 0); |
| 1971 | cmd->timestamp = bfd_h_get_32 (abfd, buf + 4); |
| 1972 | cmd->current_version = bfd_h_get_32 (abfd, buf + 8); |
| 1973 | cmd->compatibility_version = bfd_h_get_32 (abfd, buf + 12); |
| 1974 | |
| 1975 | cmd->name_offset = command->offset + nameoff; |
| 1976 | cmd->name_len = command->len - nameoff; |
| 1977 | cmd->name_str = bfd_alloc (abfd, cmd->name_len); |
| 1978 | if (cmd->name_str == NULL) |
| 1979 | return -1; |
| 1980 | if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0 |
| 1981 | || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len) |
| 1982 | return -1; |
| 1983 | return 0; |
| 1984 | } |
| 1985 | |
| 1986 | static int |
| 1987 | bfd_mach_o_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED, |
| 1988 | bfd_mach_o_load_command *command ATTRIBUTE_UNUSED) |
| 1989 | { |
| 1990 | /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */ |
| 1991 | |
| 1992 | BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB); |
| 1993 | return 0; |
| 1994 | } |
| 1995 | |
| 1996 | static int |
| 1997 | bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
| 1998 | { |
| 1999 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 2000 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
| 2001 | unsigned char buf[8]; |
| 2002 | unsigned int offset; |
| 2003 | unsigned int nflavours; |
| 2004 | unsigned int i; |
| 2005 | |
| 2006 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) |
| 2007 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); |
| 2008 | |
| 2009 | /* Count the number of threads. */ |
| 2010 | offset = 8; |
| 2011 | nflavours = 0; |
| 2012 | while (offset != command->len) |
| 2013 | { |
| 2014 | if (offset >= command->len) |
| 2015 | return -1; |
| 2016 | |
| 2017 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
| 2018 | || bfd_bread ((void *) buf, 8, abfd) != 8) |
| 2019 | return -1; |
| 2020 | |
| 2021 | offset += 8 + bfd_h_get_32 (abfd, buf + 4) * 4; |
| 2022 | nflavours++; |
| 2023 | } |
| 2024 | |
| 2025 | /* Allocate threads. */ |
| 2026 | cmd->flavours = bfd_alloc |
| 2027 | (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour)); |
| 2028 | if (cmd->flavours == NULL) |
| 2029 | return -1; |
| 2030 | cmd->nflavours = nflavours; |
| 2031 | |
| 2032 | offset = 8; |
| 2033 | nflavours = 0; |
| 2034 | while (offset != command->len) |
| 2035 | { |
| 2036 | if (offset >= command->len) |
| 2037 | return -1; |
| 2038 | |
| 2039 | if (nflavours >= cmd->nflavours) |
| 2040 | return -1; |
| 2041 | |
| 2042 | if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0 |
| 2043 | || bfd_bread ((void *) buf, 8, abfd) != 8) |
| 2044 | return -1; |
| 2045 | |
| 2046 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, buf); |
| 2047 | cmd->flavours[nflavours].offset = command->offset + offset + 8; |
| 2048 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, buf + 4) * 4; |
| 2049 | offset += cmd->flavours[nflavours].size + 8; |
| 2050 | nflavours++; |
| 2051 | } |
| 2052 | |
| 2053 | for (i = 0; i < nflavours; i++) |
| 2054 | { |
| 2055 | asection *bfdsec; |
| 2056 | unsigned int snamelen; |
| 2057 | char *sname; |
| 2058 | const char *flavourstr; |
| 2059 | const char *prefix = "LC_THREAD"; |
| 2060 | unsigned int j = 0; |
| 2061 | |
| 2062 | switch (mdata->header.cputype) |
| 2063 | { |
| 2064 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
| 2065 | case BFD_MACH_O_CPU_TYPE_POWERPC_64: |
| 2066 | flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); |
| 2067 | break; |
| 2068 | case BFD_MACH_O_CPU_TYPE_I386: |
| 2069 | case BFD_MACH_O_CPU_TYPE_X86_64: |
| 2070 | flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); |
| 2071 | break; |
| 2072 | default: |
| 2073 | flavourstr = "UNKNOWN_ARCHITECTURE"; |
| 2074 | break; |
| 2075 | } |
| 2076 | |
| 2077 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
| 2078 | sname = bfd_alloc (abfd, snamelen); |
| 2079 | if (sname == NULL) |
| 2080 | return -1; |
| 2081 | |
| 2082 | for (;;) |
| 2083 | { |
| 2084 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
| 2085 | if (bfd_get_section_by_name (abfd, sname) == NULL) |
| 2086 | break; |
| 2087 | j++; |
| 2088 | } |
| 2089 | |
| 2090 | bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS); |
| 2091 | |
| 2092 | bfdsec->vma = 0; |
| 2093 | bfdsec->lma = 0; |
| 2094 | bfdsec->size = cmd->flavours[i].size; |
| 2095 | bfdsec->filepos = cmd->flavours[i].offset; |
| 2096 | bfdsec->alignment_power = 0x0; |
| 2097 | |
| 2098 | cmd->section = bfdsec; |
| 2099 | } |
| 2100 | |
| 2101 | return 0; |
| 2102 | } |
| 2103 | |
| 2104 | static int |
| 2105 | bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
| 2106 | { |
| 2107 | bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab; |
| 2108 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 2109 | unsigned char buf[72]; |
| 2110 | |
| 2111 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); |
| 2112 | |
| 2113 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 2114 | || bfd_bread ((void *) buf, 72, abfd) != 72) |
| 2115 | return -1; |
| 2116 | |
| 2117 | cmd->ilocalsym = bfd_h_get_32 (abfd, buf + 0); |
| 2118 | cmd->nlocalsym = bfd_h_get_32 (abfd, buf + 4); |
| 2119 | cmd->iextdefsym = bfd_h_get_32 (abfd, buf + 8); |
| 2120 | cmd->nextdefsym = bfd_h_get_32 (abfd, buf + 12); |
| 2121 | cmd->iundefsym = bfd_h_get_32 (abfd, buf + 16); |
| 2122 | cmd->nundefsym = bfd_h_get_32 (abfd, buf + 20); |
| 2123 | cmd->tocoff = bfd_h_get_32 (abfd, buf + 24); |
| 2124 | cmd->ntoc = bfd_h_get_32 (abfd, buf + 28); |
| 2125 | cmd->modtaboff = bfd_h_get_32 (abfd, buf + 32); |
| 2126 | cmd->nmodtab = bfd_h_get_32 (abfd, buf + 36); |
| 2127 | cmd->extrefsymoff = bfd_h_get_32 (abfd, buf + 40); |
| 2128 | cmd->nextrefsyms = bfd_h_get_32 (abfd, buf + 44); |
| 2129 | cmd->indirectsymoff = bfd_h_get_32 (abfd, buf + 48); |
| 2130 | cmd->nindirectsyms = bfd_h_get_32 (abfd, buf + 52); |
| 2131 | cmd->extreloff = bfd_h_get_32 (abfd, buf + 56); |
| 2132 | cmd->nextrel = bfd_h_get_32 (abfd, buf + 60); |
| 2133 | cmd->locreloff = bfd_h_get_32 (abfd, buf + 64); |
| 2134 | cmd->nlocrel = bfd_h_get_32 (abfd, buf + 68); |
| 2135 | |
| 2136 | if (cmd->nmodtab != 0) |
| 2137 | { |
| 2138 | unsigned int i; |
| 2139 | int wide = bfd_mach_o_wide_p (abfd); |
| 2140 | unsigned int module_len = wide ? 56 : 52; |
| 2141 | |
| 2142 | cmd->dylib_module = |
| 2143 | bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module)); |
| 2144 | if (cmd->dylib_module == NULL) |
| 2145 | return -1; |
| 2146 | |
| 2147 | if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0) |
| 2148 | return -1; |
| 2149 | |
| 2150 | for (i = 0; i < cmd->nmodtab; i++) |
| 2151 | { |
| 2152 | bfd_mach_o_dylib_module *module = &cmd->dylib_module[i]; |
| 2153 | unsigned long v; |
| 2154 | |
| 2155 | if (bfd_bread ((void *) buf, module_len, abfd) != module_len) |
| 2156 | return -1; |
| 2157 | |
| 2158 | module->module_name_idx = bfd_h_get_32 (abfd, buf + 0); |
| 2159 | module->iextdefsym = bfd_h_get_32 (abfd, buf + 4); |
| 2160 | module->nextdefsym = bfd_h_get_32 (abfd, buf + 8); |
| 2161 | module->irefsym = bfd_h_get_32 (abfd, buf + 12); |
| 2162 | module->nrefsym = bfd_h_get_32 (abfd, buf + 16); |
| 2163 | module->ilocalsym = bfd_h_get_32 (abfd, buf + 20); |
| 2164 | module->nlocalsym = bfd_h_get_32 (abfd, buf + 24); |
| 2165 | module->iextrel = bfd_h_get_32 (abfd, buf + 28); |
| 2166 | module->nextrel = bfd_h_get_32 (abfd, buf + 32); |
| 2167 | v = bfd_h_get_32 (abfd, buf +36); |
| 2168 | module->iinit = v & 0xffff; |
| 2169 | module->iterm = (v >> 16) & 0xffff; |
| 2170 | v = bfd_h_get_32 (abfd, buf + 40); |
| 2171 | module->ninit = v & 0xffff; |
| 2172 | module->nterm = (v >> 16) & 0xffff; |
| 2173 | if (wide) |
| 2174 | { |
| 2175 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44); |
| 2176 | module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48); |
| 2177 | } |
| 2178 | else |
| 2179 | { |
| 2180 | module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44); |
| 2181 | module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48); |
| 2182 | } |
| 2183 | } |
| 2184 | } |
| 2185 | |
| 2186 | if (cmd->ntoc != 0) |
| 2187 | { |
| 2188 | unsigned int i; |
| 2189 | |
| 2190 | cmd->dylib_toc = bfd_alloc |
| 2191 | (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content)); |
| 2192 | if (cmd->dylib_toc == NULL) |
| 2193 | return -1; |
| 2194 | |
| 2195 | if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0) |
| 2196 | return -1; |
| 2197 | |
| 2198 | for (i = 0; i < cmd->ntoc; i++) |
| 2199 | { |
| 2200 | bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i]; |
| 2201 | |
| 2202 | if (bfd_bread ((void *) buf, 8, abfd) != 8) |
| 2203 | return -1; |
| 2204 | |
| 2205 | toc->symbol_index = bfd_h_get_32 (abfd, buf + 0); |
| 2206 | toc->module_index = bfd_h_get_32 (abfd, buf + 4); |
| 2207 | } |
| 2208 | } |
| 2209 | |
| 2210 | if (cmd->nindirectsyms != 0) |
| 2211 | { |
| 2212 | unsigned int i; |
| 2213 | |
| 2214 | cmd->indirect_syms = bfd_alloc |
| 2215 | (abfd, cmd->nindirectsyms * sizeof (unsigned int)); |
| 2216 | if (cmd->indirect_syms == NULL) |
| 2217 | return -1; |
| 2218 | |
| 2219 | if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0) |
| 2220 | return -1; |
| 2221 | |
| 2222 | for (i = 0; i < cmd->nindirectsyms; i++) |
| 2223 | { |
| 2224 | unsigned int *is = &cmd->indirect_syms[i]; |
| 2225 | |
| 2226 | if (bfd_bread ((void *) buf, 4, abfd) != 4) |
| 2227 | return -1; |
| 2228 | |
| 2229 | *is = bfd_h_get_32 (abfd, buf + 0); |
| 2230 | } |
| 2231 | } |
| 2232 | |
| 2233 | if (cmd->nextrefsyms != 0) |
| 2234 | { |
| 2235 | unsigned long v; |
| 2236 | unsigned int i; |
| 2237 | |
| 2238 | cmd->ext_refs = bfd_alloc |
| 2239 | (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference)); |
| 2240 | if (cmd->ext_refs == NULL) |
| 2241 | return -1; |
| 2242 | |
| 2243 | if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0) |
| 2244 | return -1; |
| 2245 | |
| 2246 | for (i = 0; i < cmd->nextrefsyms; i++) |
| 2247 | { |
| 2248 | bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i]; |
| 2249 | |
| 2250 | if (bfd_bread ((void *) buf, 4, abfd) != 4) |
| 2251 | return -1; |
| 2252 | |
| 2253 | /* Fields isym and flags are written as bit-fields, thus we need |
| 2254 | a specific processing for endianness. */ |
| 2255 | v = bfd_h_get_32 (abfd, buf + 0); |
| 2256 | if (bfd_big_endian (abfd)) |
| 2257 | { |
| 2258 | ref->isym = (v >> 8) & 0xffffff; |
| 2259 | ref->flags = v & 0xff; |
| 2260 | } |
| 2261 | else |
| 2262 | { |
| 2263 | ref->isym = v & 0xffffff; |
| 2264 | ref->flags = (v >> 24) & 0xff; |
| 2265 | } |
| 2266 | } |
| 2267 | } |
| 2268 | |
| 2269 | if (mdata->dysymtab) |
| 2270 | return -1; |
| 2271 | mdata->dysymtab = cmd; |
| 2272 | |
| 2273 | return 0; |
| 2274 | } |
| 2275 | |
| 2276 | static int |
| 2277 | bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
| 2278 | { |
| 2279 | bfd_mach_o_symtab_command *symtab = &command->command.symtab; |
| 2280 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 2281 | unsigned char buf[16]; |
| 2282 | |
| 2283 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); |
| 2284 | |
| 2285 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 2286 | || bfd_bread ((void *) buf, 16, abfd) != 16) |
| 2287 | return -1; |
| 2288 | |
| 2289 | symtab->symoff = bfd_h_get_32 (abfd, buf); |
| 2290 | symtab->nsyms = bfd_h_get_32 (abfd, buf + 4); |
| 2291 | symtab->stroff = bfd_h_get_32 (abfd, buf + 8); |
| 2292 | symtab->strsize = bfd_h_get_32 (abfd, buf + 12); |
| 2293 | symtab->symbols = NULL; |
| 2294 | symtab->strtab = NULL; |
| 2295 | |
| 2296 | if (symtab->nsyms != 0) |
| 2297 | abfd->flags |= HAS_SYMS; |
| 2298 | |
| 2299 | if (mdata->symtab) |
| 2300 | return -1; |
| 2301 | mdata->symtab = symtab; |
| 2302 | return 0; |
| 2303 | } |
| 2304 | |
| 2305 | static int |
| 2306 | bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command) |
| 2307 | { |
| 2308 | bfd_mach_o_uuid_command *cmd = &command->command.uuid; |
| 2309 | |
| 2310 | BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID); |
| 2311 | |
| 2312 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 2313 | || bfd_bread ((void *) cmd->uuid, 16, abfd) != 16) |
| 2314 | return -1; |
| 2315 | |
| 2316 | return 0; |
| 2317 | } |
| 2318 | |
| 2319 | static int |
| 2320 | bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command) |
| 2321 | { |
| 2322 | bfd_mach_o_linkedit_command *cmd = &command->command.linkedit; |
| 2323 | char buf[8]; |
| 2324 | |
| 2325 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 2326 | || bfd_bread ((void *) buf, 8, abfd) != 8) |
| 2327 | return -1; |
| 2328 | |
| 2329 | cmd->dataoff = bfd_get_32 (abfd, buf + 0); |
| 2330 | cmd->datasize = bfd_get_32 (abfd, buf + 4); |
| 2331 | return 0; |
| 2332 | } |
| 2333 | |
| 2334 | static int |
| 2335 | bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command) |
| 2336 | { |
| 2337 | bfd_mach_o_str_command *cmd = &command->command.str; |
| 2338 | char buf[4]; |
| 2339 | unsigned long off; |
| 2340 | |
| 2341 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 2342 | || bfd_bread ((void *) buf, 4, abfd) != 4) |
| 2343 | return -1; |
| 2344 | |
| 2345 | off = bfd_get_32 (abfd, buf + 0); |
| 2346 | cmd->stroff = command->offset + off; |
| 2347 | cmd->str_len = command->len - off; |
| 2348 | cmd->str = bfd_alloc (abfd, cmd->str_len); |
| 2349 | if (cmd->str == NULL) |
| 2350 | return -1; |
| 2351 | if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0 |
| 2352 | || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len) |
| 2353 | return -1; |
| 2354 | return 0; |
| 2355 | } |
| 2356 | |
| 2357 | static int |
| 2358 | bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) |
| 2359 | { |
| 2360 | bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info; |
| 2361 | char buf[40]; |
| 2362 | |
| 2363 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 2364 | || bfd_bread ((void *) buf, sizeof (buf), abfd) != sizeof (buf)) |
| 2365 | return -1; |
| 2366 | |
| 2367 | cmd->rebase_off = bfd_get_32 (abfd, buf + 0); |
| 2368 | cmd->rebase_size = bfd_get_32 (abfd, buf + 4); |
| 2369 | cmd->bind_off = bfd_get_32 (abfd, buf + 8); |
| 2370 | cmd->bind_size = bfd_get_32 (abfd, buf + 12); |
| 2371 | cmd->weak_bind_off = bfd_get_32 (abfd, buf + 16); |
| 2372 | cmd->weak_bind_size = bfd_get_32 (abfd, buf + 20); |
| 2373 | cmd->lazy_bind_off = bfd_get_32 (abfd, buf + 24); |
| 2374 | cmd->lazy_bind_size = bfd_get_32 (abfd, buf + 28); |
| 2375 | cmd->export_off = bfd_get_32 (abfd, buf + 32); |
| 2376 | cmd->export_size = bfd_get_32 (abfd, buf + 36); |
| 2377 | return 0; |
| 2378 | } |
| 2379 | |
| 2380 | static int |
| 2381 | bfd_mach_o_read_segment (bfd *abfd, |
| 2382 | bfd_mach_o_load_command *command, |
| 2383 | unsigned int wide) |
| 2384 | { |
| 2385 | unsigned char buf[64]; |
| 2386 | bfd_mach_o_segment_command *seg = &command->command.segment; |
| 2387 | unsigned long i; |
| 2388 | |
| 2389 | if (wide) |
| 2390 | { |
| 2391 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64); |
| 2392 | |
| 2393 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 2394 | || bfd_bread ((void *) buf, 64, abfd) != 64) |
| 2395 | return -1; |
| 2396 | |
| 2397 | memcpy (seg->segname, buf, 16); |
| 2398 | seg->segname[16] = '\0'; |
| 2399 | |
| 2400 | seg->vmaddr = bfd_h_get_64 (abfd, buf + 16); |
| 2401 | seg->vmsize = bfd_h_get_64 (abfd, buf + 24); |
| 2402 | seg->fileoff = bfd_h_get_64 (abfd, buf + 32); |
| 2403 | seg->filesize = bfd_h_get_64 (abfd, buf + 40); |
| 2404 | seg->maxprot = bfd_h_get_32 (abfd, buf + 48); |
| 2405 | seg->initprot = bfd_h_get_32 (abfd, buf + 52); |
| 2406 | seg->nsects = bfd_h_get_32 (abfd, buf + 56); |
| 2407 | seg->flags = bfd_h_get_32 (abfd, buf + 60); |
| 2408 | } |
| 2409 | else |
| 2410 | { |
| 2411 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
| 2412 | |
| 2413 | if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0 |
| 2414 | || bfd_bread ((void *) buf, 48, abfd) != 48) |
| 2415 | return -1; |
| 2416 | |
| 2417 | memcpy (seg->segname, buf, 16); |
| 2418 | seg->segname[16] = '\0'; |
| 2419 | |
| 2420 | seg->vmaddr = bfd_h_get_32 (abfd, buf + 16); |
| 2421 | seg->vmsize = bfd_h_get_32 (abfd, buf + 20); |
| 2422 | seg->fileoff = bfd_h_get_32 (abfd, buf + 24); |
| 2423 | seg->filesize = bfd_h_get_32 (abfd, buf + 28); |
| 2424 | seg->maxprot = bfd_h_get_32 (abfd, buf + 32); |
| 2425 | seg->initprot = bfd_h_get_32 (abfd, buf + 36); |
| 2426 | seg->nsects = bfd_h_get_32 (abfd, buf + 40); |
| 2427 | seg->flags = bfd_h_get_32 (abfd, buf + 44); |
| 2428 | } |
| 2429 | |
| 2430 | if (seg->nsects != 0) |
| 2431 | { |
| 2432 | seg->sections = bfd_alloc (abfd, seg->nsects |
| 2433 | * sizeof (bfd_mach_o_section)); |
| 2434 | if (seg->sections == NULL) |
| 2435 | return -1; |
| 2436 | |
| 2437 | for (i = 0; i < seg->nsects; i++) |
| 2438 | { |
| 2439 | bfd_vma segoff; |
| 2440 | if (wide) |
| 2441 | segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE |
| 2442 | + (i * BFD_MACH_O_SECTION_64_SIZE); |
| 2443 | else |
| 2444 | segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE |
| 2445 | + (i * BFD_MACH_O_SECTION_SIZE); |
| 2446 | |
| 2447 | if (bfd_mach_o_read_section |
| 2448 | (abfd, &seg->sections[i], segoff, seg->initprot, wide) != 0) |
| 2449 | return -1; |
| 2450 | } |
| 2451 | } |
| 2452 | |
| 2453 | return 0; |
| 2454 | } |
| 2455 | |
| 2456 | static int |
| 2457 | bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command) |
| 2458 | { |
| 2459 | return bfd_mach_o_read_segment (abfd, command, 0); |
| 2460 | } |
| 2461 | |
| 2462 | static int |
| 2463 | bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command) |
| 2464 | { |
| 2465 | return bfd_mach_o_read_segment (abfd, command, 1); |
| 2466 | } |
| 2467 | |
| 2468 | static int |
| 2469 | bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command) |
| 2470 | { |
| 2471 | unsigned char buf[8]; |
| 2472 | |
| 2473 | /* Read command type and length. */ |
| 2474 | if (bfd_seek (abfd, command->offset, SEEK_SET) != 0 |
| 2475 | || bfd_bread ((void *) buf, 8, abfd) != 8) |
| 2476 | return -1; |
| 2477 | |
| 2478 | command->type = bfd_h_get_32 (abfd, buf) & ~BFD_MACH_O_LC_REQ_DYLD; |
| 2479 | command->type_required = (bfd_h_get_32 (abfd, buf) & BFD_MACH_O_LC_REQ_DYLD |
| 2480 | ? TRUE : FALSE); |
| 2481 | command->len = bfd_h_get_32 (abfd, buf + 4); |
| 2482 | |
| 2483 | switch (command->type) |
| 2484 | { |
| 2485 | case BFD_MACH_O_LC_SEGMENT: |
| 2486 | if (bfd_mach_o_read_segment_32 (abfd, command) != 0) |
| 2487 | return -1; |
| 2488 | break; |
| 2489 | case BFD_MACH_O_LC_SEGMENT_64: |
| 2490 | if (bfd_mach_o_read_segment_64 (abfd, command) != 0) |
| 2491 | return -1; |
| 2492 | break; |
| 2493 | case BFD_MACH_O_LC_SYMTAB: |
| 2494 | if (bfd_mach_o_read_symtab (abfd, command) != 0) |
| 2495 | return -1; |
| 2496 | break; |
| 2497 | case BFD_MACH_O_LC_SYMSEG: |
| 2498 | break; |
| 2499 | case BFD_MACH_O_LC_THREAD: |
| 2500 | case BFD_MACH_O_LC_UNIXTHREAD: |
| 2501 | if (bfd_mach_o_read_thread (abfd, command) != 0) |
| 2502 | return -1; |
| 2503 | break; |
| 2504 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
| 2505 | case BFD_MACH_O_LC_ID_DYLINKER: |
| 2506 | if (bfd_mach_o_read_dylinker (abfd, command) != 0) |
| 2507 | return -1; |
| 2508 | break; |
| 2509 | case BFD_MACH_O_LC_LOAD_DYLIB: |
| 2510 | case BFD_MACH_O_LC_ID_DYLIB: |
| 2511 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
| 2512 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
| 2513 | if (bfd_mach_o_read_dylib (abfd, command) != 0) |
| 2514 | return -1; |
| 2515 | break; |
| 2516 | case BFD_MACH_O_LC_PREBOUND_DYLIB: |
| 2517 | if (bfd_mach_o_read_prebound_dylib (abfd, command) != 0) |
| 2518 | return -1; |
| 2519 | break; |
| 2520 | case BFD_MACH_O_LC_LOADFVMLIB: |
| 2521 | case BFD_MACH_O_LC_IDFVMLIB: |
| 2522 | case BFD_MACH_O_LC_IDENT: |
| 2523 | case BFD_MACH_O_LC_FVMFILE: |
| 2524 | case BFD_MACH_O_LC_PREPAGE: |
| 2525 | case BFD_MACH_O_LC_ROUTINES: |
| 2526 | break; |
| 2527 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
| 2528 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
| 2529 | case BFD_MACH_O_LC_SUB_LIBRARY: |
| 2530 | case BFD_MACH_O_LC_SUB_CLIENT: |
| 2531 | case BFD_MACH_O_LC_RPATH: |
| 2532 | if (bfd_mach_o_read_str (abfd, command) != 0) |
| 2533 | return -1; |
| 2534 | break; |
| 2535 | case BFD_MACH_O_LC_DYSYMTAB: |
| 2536 | if (bfd_mach_o_read_dysymtab (abfd, command) != 0) |
| 2537 | return -1; |
| 2538 | break; |
| 2539 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: |
| 2540 | case BFD_MACH_O_LC_PREBIND_CKSUM: |
| 2541 | break; |
| 2542 | case BFD_MACH_O_LC_UUID: |
| 2543 | if (bfd_mach_o_read_uuid (abfd, command) != 0) |
| 2544 | return -1; |
| 2545 | break; |
| 2546 | case BFD_MACH_O_LC_CODE_SIGNATURE: |
| 2547 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
| 2548 | if (bfd_mach_o_read_linkedit (abfd, command) != 0) |
| 2549 | return -1; |
| 2550 | break; |
| 2551 | case BFD_MACH_O_LC_DYLD_INFO: |
| 2552 | if (bfd_mach_o_read_dyld_info (abfd, command) != 0) |
| 2553 | return -1; |
| 2554 | break; |
| 2555 | default: |
| 2556 | (*_bfd_error_handler) (_("unable to read unknown load command 0x%lx"), |
| 2557 | (unsigned long) command->type); |
| 2558 | break; |
| 2559 | } |
| 2560 | |
| 2561 | return 0; |
| 2562 | } |
| 2563 | |
| 2564 | static void |
| 2565 | bfd_mach_o_flatten_sections (bfd *abfd) |
| 2566 | { |
| 2567 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 2568 | long csect = 0; |
| 2569 | unsigned long i, j; |
| 2570 | |
| 2571 | /* Count total number of sections. */ |
| 2572 | mdata->nsects = 0; |
| 2573 | |
| 2574 | for (i = 0; i < mdata->header.ncmds; i++) |
| 2575 | { |
| 2576 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT |
| 2577 | || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64) |
| 2578 | { |
| 2579 | bfd_mach_o_segment_command *seg; |
| 2580 | |
| 2581 | seg = &mdata->commands[i].command.segment; |
| 2582 | mdata->nsects += seg->nsects; |
| 2583 | } |
| 2584 | } |
| 2585 | |
| 2586 | /* Allocate sections array. */ |
| 2587 | mdata->sections = bfd_alloc (abfd, |
| 2588 | mdata->nsects * sizeof (bfd_mach_o_section *)); |
| 2589 | |
| 2590 | /* Fill the array. */ |
| 2591 | csect = 0; |
| 2592 | |
| 2593 | for (i = 0; i < mdata->header.ncmds; i++) |
| 2594 | { |
| 2595 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT |
| 2596 | || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64) |
| 2597 | { |
| 2598 | bfd_mach_o_segment_command *seg; |
| 2599 | |
| 2600 | seg = &mdata->commands[i].command.segment; |
| 2601 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); |
| 2602 | |
| 2603 | for (j = 0; j < seg->nsects; j++) |
| 2604 | mdata->sections[csect++] = &seg->sections[j]; |
| 2605 | } |
| 2606 | } |
| 2607 | } |
| 2608 | |
| 2609 | int |
| 2610 | bfd_mach_o_scan_start_address (bfd *abfd) |
| 2611 | { |
| 2612 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 2613 | bfd_mach_o_thread_command *cmd = NULL; |
| 2614 | unsigned long i; |
| 2615 | |
| 2616 | for (i = 0; i < mdata->header.ncmds; i++) |
| 2617 | { |
| 2618 | if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) || |
| 2619 | (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD)) |
| 2620 | { |
| 2621 | if (cmd == NULL) |
| 2622 | cmd = &mdata->commands[i].command.thread; |
| 2623 | else |
| 2624 | return 0; |
| 2625 | } |
| 2626 | } |
| 2627 | |
| 2628 | if (cmd == NULL) |
| 2629 | return 0; |
| 2630 | |
| 2631 | for (i = 0; i < cmd->nflavours; i++) |
| 2632 | { |
| 2633 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
| 2634 | && (cmd->flavours[i].flavour |
| 2635 | == (unsigned long) BFD_MACH_O_x86_THREAD_STATE32)) |
| 2636 | { |
| 2637 | unsigned char buf[4]; |
| 2638 | |
| 2639 | if (bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET) != 0 |
| 2640 | || bfd_bread (buf, 4, abfd) != 4) |
| 2641 | return -1; |
| 2642 | |
| 2643 | abfd->start_address = bfd_h_get_32 (abfd, buf); |
| 2644 | } |
| 2645 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
| 2646 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
| 2647 | { |
| 2648 | unsigned char buf[4]; |
| 2649 | |
| 2650 | if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0 |
| 2651 | || bfd_bread (buf, 4, abfd) != 4) |
| 2652 | return -1; |
| 2653 | |
| 2654 | abfd->start_address = bfd_h_get_32 (abfd, buf); |
| 2655 | } |
| 2656 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64) |
| 2657 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64)) |
| 2658 | { |
| 2659 | unsigned char buf[8]; |
| 2660 | |
| 2661 | if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0 |
| 2662 | || bfd_bread (buf, 8, abfd) != 8) |
| 2663 | return -1; |
| 2664 | |
| 2665 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
| 2666 | } |
| 2667 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64) |
| 2668 | && (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64)) |
| 2669 | { |
| 2670 | unsigned char buf[8]; |
| 2671 | |
| 2672 | if (bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET) != 0 |
| 2673 | || bfd_bread (buf, 8, abfd) != 8) |
| 2674 | return -1; |
| 2675 | |
| 2676 | abfd->start_address = bfd_h_get_64 (abfd, buf); |
| 2677 | } |
| 2678 | } |
| 2679 | |
| 2680 | return 0; |
| 2681 | } |
| 2682 | |
| 2683 | bfd_boolean |
| 2684 | bfd_mach_o_set_arch_mach (bfd *abfd, |
| 2685 | enum bfd_architecture arch, |
| 2686 | unsigned long machine) |
| 2687 | { |
| 2688 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
| 2689 | |
| 2690 | /* If this isn't the right architecture for this backend, and this |
| 2691 | isn't the generic backend, fail. */ |
| 2692 | if (arch != bed->arch |
| 2693 | && arch != bfd_arch_unknown |
| 2694 | && bed->arch != bfd_arch_unknown) |
| 2695 | return FALSE; |
| 2696 | |
| 2697 | return bfd_default_set_arch_mach (abfd, arch, machine); |
| 2698 | } |
| 2699 | |
| 2700 | int |
| 2701 | bfd_mach_o_scan (bfd *abfd, |
| 2702 | bfd_mach_o_header *header, |
| 2703 | bfd_mach_o_data_struct *mdata) |
| 2704 | { |
| 2705 | unsigned int i; |
| 2706 | enum bfd_architecture cputype; |
| 2707 | unsigned long cpusubtype; |
| 2708 | unsigned int hdrsize; |
| 2709 | |
| 2710 | hdrsize = mach_o_wide_p (header) ? |
| 2711 | BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE; |
| 2712 | |
| 2713 | mdata->header = *header; |
| 2714 | |
| 2715 | abfd->flags = abfd->flags & BFD_IN_MEMORY; |
| 2716 | switch (header->filetype) |
| 2717 | { |
| 2718 | case BFD_MACH_O_MH_OBJECT: |
| 2719 | abfd->flags |= HAS_RELOC; |
| 2720 | break; |
| 2721 | case BFD_MACH_O_MH_EXECUTE: |
| 2722 | abfd->flags |= EXEC_P; |
| 2723 | break; |
| 2724 | case BFD_MACH_O_MH_DYLIB: |
| 2725 | case BFD_MACH_O_MH_BUNDLE: |
| 2726 | abfd->flags |= DYNAMIC; |
| 2727 | break; |
| 2728 | } |
| 2729 | |
| 2730 | abfd->tdata.mach_o_data = mdata; |
| 2731 | |
| 2732 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
| 2733 | &cputype, &cpusubtype); |
| 2734 | if (cputype == bfd_arch_unknown) |
| 2735 | { |
| 2736 | (*_bfd_error_handler) (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"), |
| 2737 | header->cputype, header->cpusubtype); |
| 2738 | return -1; |
| 2739 | } |
| 2740 | |
| 2741 | bfd_set_arch_mach (abfd, cputype, cpusubtype); |
| 2742 | |
| 2743 | if (header->ncmds != 0) |
| 2744 | { |
| 2745 | mdata->commands = bfd_alloc |
| 2746 | (abfd, header->ncmds * sizeof (bfd_mach_o_load_command)); |
| 2747 | if (mdata->commands == NULL) |
| 2748 | return -1; |
| 2749 | |
| 2750 | for (i = 0; i < header->ncmds; i++) |
| 2751 | { |
| 2752 | bfd_mach_o_load_command *cur = &mdata->commands[i]; |
| 2753 | |
| 2754 | if (i == 0) |
| 2755 | cur->offset = hdrsize; |
| 2756 | else |
| 2757 | { |
| 2758 | bfd_mach_o_load_command *prev = &mdata->commands[i - 1]; |
| 2759 | cur->offset = prev->offset + prev->len; |
| 2760 | } |
| 2761 | |
| 2762 | if (bfd_mach_o_read_command (abfd, cur) < 0) |
| 2763 | return -1; |
| 2764 | } |
| 2765 | } |
| 2766 | |
| 2767 | if (bfd_mach_o_scan_start_address (abfd) < 0) |
| 2768 | return -1; |
| 2769 | |
| 2770 | bfd_mach_o_flatten_sections (abfd); |
| 2771 | return 0; |
| 2772 | } |
| 2773 | |
| 2774 | bfd_boolean |
| 2775 | bfd_mach_o_mkobject_init (bfd *abfd) |
| 2776 | { |
| 2777 | bfd_mach_o_data_struct *mdata = NULL; |
| 2778 | |
| 2779 | mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct)); |
| 2780 | if (mdata == NULL) |
| 2781 | return FALSE; |
| 2782 | abfd->tdata.mach_o_data = mdata; |
| 2783 | |
| 2784 | mdata->header.magic = 0; |
| 2785 | mdata->header.cputype = 0; |
| 2786 | mdata->header.cpusubtype = 0; |
| 2787 | mdata->header.filetype = 0; |
| 2788 | mdata->header.ncmds = 0; |
| 2789 | mdata->header.sizeofcmds = 0; |
| 2790 | mdata->header.flags = 0; |
| 2791 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; |
| 2792 | mdata->commands = NULL; |
| 2793 | mdata->nsects = 0; |
| 2794 | mdata->sections = NULL; |
| 2795 | |
| 2796 | return TRUE; |
| 2797 | } |
| 2798 | |
| 2799 | static bfd_boolean |
| 2800 | bfd_mach_o_gen_mkobject (bfd *abfd) |
| 2801 | { |
| 2802 | bfd_mach_o_data_struct *mdata; |
| 2803 | |
| 2804 | if (!bfd_mach_o_mkobject_init (abfd)) |
| 2805 | return FALSE; |
| 2806 | |
| 2807 | mdata = bfd_mach_o_get_data (abfd); |
| 2808 | mdata->header.magic = BFD_MACH_O_MH_MAGIC; |
| 2809 | mdata->header.cputype = 0; |
| 2810 | mdata->header.cpusubtype = 0; |
| 2811 | mdata->header.byteorder = abfd->xvec->byteorder; |
| 2812 | mdata->header.version = 1; |
| 2813 | |
| 2814 | return TRUE; |
| 2815 | } |
| 2816 | |
| 2817 | const bfd_target * |
| 2818 | bfd_mach_o_header_p (bfd *abfd, |
| 2819 | bfd_mach_o_filetype filetype, |
| 2820 | bfd_mach_o_cpu_type cputype) |
| 2821 | { |
| 2822 | struct bfd_preserve preserve; |
| 2823 | bfd_mach_o_header header; |
| 2824 | |
| 2825 | preserve.marker = NULL; |
| 2826 | if (!bfd_mach_o_read_header (abfd, &header)) |
| 2827 | goto wrong; |
| 2828 | |
| 2829 | if (! (header.byteorder == BFD_ENDIAN_BIG |
| 2830 | || header.byteorder == BFD_ENDIAN_LITTLE)) |
| 2831 | { |
| 2832 | (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"), |
| 2833 | (unsigned long) header.byteorder); |
| 2834 | goto wrong; |
| 2835 | } |
| 2836 | |
| 2837 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
| 2838 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG |
| 2839 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) |
| 2840 | || (header.byteorder == BFD_ENDIAN_LITTLE |
| 2841 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE |
| 2842 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) |
| 2843 | goto wrong; |
| 2844 | |
| 2845 | /* Check cputype and filetype. |
| 2846 | In case of wildcard, do not accept magics that are handled by existing |
| 2847 | targets. */ |
| 2848 | if (cputype) |
| 2849 | { |
| 2850 | if (header.cputype != cputype) |
| 2851 | goto wrong; |
| 2852 | } |
| 2853 | else |
| 2854 | { |
| 2855 | switch (header.cputype) |
| 2856 | { |
| 2857 | case BFD_MACH_O_CPU_TYPE_I386: |
| 2858 | /* Handled by mach-o-i386 */ |
| 2859 | goto wrong; |
| 2860 | default: |
| 2861 | break; |
| 2862 | } |
| 2863 | } |
| 2864 | if (filetype) |
| 2865 | { |
| 2866 | if (header.filetype != filetype) |
| 2867 | goto wrong; |
| 2868 | } |
| 2869 | else |
| 2870 | { |
| 2871 | switch (header.filetype) |
| 2872 | { |
| 2873 | case BFD_MACH_O_MH_CORE: |
| 2874 | /* Handled by core_p */ |
| 2875 | goto wrong; |
| 2876 | default: |
| 2877 | break; |
| 2878 | } |
| 2879 | } |
| 2880 | |
| 2881 | preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
| 2882 | if (preserve.marker == NULL |
| 2883 | || !bfd_preserve_save (abfd, &preserve)) |
| 2884 | goto fail; |
| 2885 | |
| 2886 | if (bfd_mach_o_scan (abfd, &header, |
| 2887 | (bfd_mach_o_data_struct *) preserve.marker) != 0) |
| 2888 | goto wrong; |
| 2889 | |
| 2890 | bfd_preserve_finish (abfd, &preserve); |
| 2891 | return abfd->xvec; |
| 2892 | |
| 2893 | wrong: |
| 2894 | bfd_set_error (bfd_error_wrong_format); |
| 2895 | |
| 2896 | fail: |
| 2897 | if (preserve.marker != NULL) |
| 2898 | bfd_preserve_restore (abfd, &preserve); |
| 2899 | return NULL; |
| 2900 | } |
| 2901 | |
| 2902 | static const bfd_target * |
| 2903 | bfd_mach_o_gen_object_p (bfd *abfd) |
| 2904 | { |
| 2905 | return bfd_mach_o_header_p (abfd, 0, 0); |
| 2906 | } |
| 2907 | |
| 2908 | static const bfd_target * |
| 2909 | bfd_mach_o_gen_core_p (bfd *abfd) |
| 2910 | { |
| 2911 | return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0); |
| 2912 | } |
| 2913 | |
| 2914 | typedef struct mach_o_fat_archentry |
| 2915 | { |
| 2916 | unsigned long cputype; |
| 2917 | unsigned long cpusubtype; |
| 2918 | unsigned long offset; |
| 2919 | unsigned long size; |
| 2920 | unsigned long align; |
| 2921 | } mach_o_fat_archentry; |
| 2922 | |
| 2923 | typedef struct mach_o_fat_data_struct |
| 2924 | { |
| 2925 | unsigned long magic; |
| 2926 | unsigned long nfat_arch; |
| 2927 | mach_o_fat_archentry *archentries; |
| 2928 | } mach_o_fat_data_struct; |
| 2929 | |
| 2930 | const bfd_target * |
| 2931 | bfd_mach_o_archive_p (bfd *abfd) |
| 2932 | { |
| 2933 | mach_o_fat_data_struct *adata = NULL; |
| 2934 | unsigned char buf[20]; |
| 2935 | unsigned long i; |
| 2936 | |
| 2937 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
| 2938 | || bfd_bread ((void *) buf, 8, abfd) != 8) |
| 2939 | goto error; |
| 2940 | |
| 2941 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
| 2942 | if (adata == NULL) |
| 2943 | goto error; |
| 2944 | |
| 2945 | adata->magic = bfd_getb32 (buf); |
| 2946 | adata->nfat_arch = bfd_getb32 (buf + 4); |
| 2947 | if (adata->magic != 0xcafebabe) |
| 2948 | goto error; |
| 2949 | /* Avoid matching Java bytecode files, which have the same magic number. |
| 2950 | In the Java bytecode file format this field contains the JVM version, |
| 2951 | which starts at 43.0. */ |
| 2952 | if (adata->nfat_arch > 30) |
| 2953 | goto error; |
| 2954 | |
| 2955 | adata->archentries = |
| 2956 | bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry)); |
| 2957 | if (adata->archentries == NULL) |
| 2958 | goto error; |
| 2959 | |
| 2960 | for (i = 0; i < adata->nfat_arch; i++) |
| 2961 | { |
| 2962 | if (bfd_seek (abfd, 8 + 20 * i, SEEK_SET) != 0 |
| 2963 | || bfd_bread ((void *) buf, 20, abfd) != 20) |
| 2964 | goto error; |
| 2965 | adata->archentries[i].cputype = bfd_getb32 (buf); |
| 2966 | adata->archentries[i].cpusubtype = bfd_getb32 (buf + 4); |
| 2967 | adata->archentries[i].offset = bfd_getb32 (buf + 8); |
| 2968 | adata->archentries[i].size = bfd_getb32 (buf + 12); |
| 2969 | adata->archentries[i].align = bfd_getb32 (buf + 16); |
| 2970 | } |
| 2971 | |
| 2972 | abfd->tdata.mach_o_fat_data = adata; |
| 2973 | return abfd->xvec; |
| 2974 | |
| 2975 | error: |
| 2976 | if (adata != NULL) |
| 2977 | bfd_release (abfd, adata); |
| 2978 | bfd_set_error (bfd_error_wrong_format); |
| 2979 | return NULL; |
| 2980 | } |
| 2981 | |
| 2982 | bfd * |
| 2983 | bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev) |
| 2984 | { |
| 2985 | mach_o_fat_data_struct *adata; |
| 2986 | mach_o_fat_archentry *entry = NULL; |
| 2987 | unsigned long i; |
| 2988 | bfd *nbfd; |
| 2989 | enum bfd_architecture arch_type; |
| 2990 | unsigned long arch_subtype; |
| 2991 | |
| 2992 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
| 2993 | BFD_ASSERT (adata != NULL); |
| 2994 | |
| 2995 | /* Find index of previous entry. */ |
| 2996 | if (prev == NULL) |
| 2997 | i = 0; /* Start at first one. */ |
| 2998 | else |
| 2999 | { |
| 3000 | for (i = 0; i < adata->nfat_arch; i++) |
| 3001 | { |
| 3002 | if (adata->archentries[i].offset == prev->origin) |
| 3003 | break; |
| 3004 | } |
| 3005 | |
| 3006 | if (i == adata->nfat_arch) |
| 3007 | { |
| 3008 | /* Not found. */ |
| 3009 | bfd_set_error (bfd_error_bad_value); |
| 3010 | return NULL; |
| 3011 | } |
| 3012 | i++; /* Get next entry. */ |
| 3013 | } |
| 3014 | |
| 3015 | if (i >= adata->nfat_arch) |
| 3016 | { |
| 3017 | bfd_set_error (bfd_error_no_more_archived_files); |
| 3018 | return NULL; |
| 3019 | } |
| 3020 | |
| 3021 | entry = &adata->archentries[i]; |
| 3022 | nbfd = _bfd_new_bfd_contained_in (archive); |
| 3023 | if (nbfd == NULL) |
| 3024 | return NULL; |
| 3025 | |
| 3026 | nbfd->origin = entry->offset; |
| 3027 | |
| 3028 | bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype, |
| 3029 | &arch_type, &arch_subtype); |
| 3030 | /* Create the member filename. |
| 3031 | Use FILENAME:ARCH_NAME. */ |
| 3032 | { |
| 3033 | char *s = NULL; |
| 3034 | const char *arch_name; |
| 3035 | size_t arch_file_len = strlen (bfd_get_filename (archive)); |
| 3036 | |
| 3037 | arch_name = bfd_printable_arch_mach (arch_type, arch_subtype); |
| 3038 | s = bfd_malloc (arch_file_len + 1 + strlen (arch_name) + 1); |
| 3039 | if (s == NULL) |
| 3040 | return NULL; |
| 3041 | memcpy (s, bfd_get_filename (archive), arch_file_len); |
| 3042 | s[arch_file_len] = ':'; |
| 3043 | strcpy (s + arch_file_len + 1, arch_name); |
| 3044 | nbfd->filename = s; |
| 3045 | } |
| 3046 | nbfd->iostream = NULL; |
| 3047 | bfd_set_arch_mach (nbfd, arch_type, arch_subtype); |
| 3048 | |
| 3049 | return nbfd; |
| 3050 | } |
| 3051 | |
| 3052 | /* If ABFD format is FORMAT and architecture is ARCH, return it. |
| 3053 | If ABFD is a fat image containing a member that corresponds to FORMAT |
| 3054 | and ARCH, returns it. |
| 3055 | In other case, returns NULL. |
| 3056 | This function allows transparent uses of fat images. */ |
| 3057 | bfd * |
| 3058 | bfd_mach_o_fat_extract (bfd *abfd, |
| 3059 | bfd_format format, |
| 3060 | const bfd_arch_info_type *arch) |
| 3061 | { |
| 3062 | bfd *res; |
| 3063 | mach_o_fat_data_struct *adata; |
| 3064 | unsigned int i; |
| 3065 | |
| 3066 | if (bfd_check_format (abfd, format)) |
| 3067 | { |
| 3068 | if (bfd_get_arch_info (abfd) == arch) |
| 3069 | return abfd; |
| 3070 | return NULL; |
| 3071 | } |
| 3072 | if (!bfd_check_format (abfd, bfd_archive) |
| 3073 | || abfd->xvec != &mach_o_fat_vec) |
| 3074 | return NULL; |
| 3075 | |
| 3076 | /* This is a Mach-O fat image. */ |
| 3077 | adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data; |
| 3078 | BFD_ASSERT (adata != NULL); |
| 3079 | |
| 3080 | for (i = 0; i < adata->nfat_arch; i++) |
| 3081 | { |
| 3082 | struct mach_o_fat_archentry *e = &adata->archentries[i]; |
| 3083 | enum bfd_architecture cpu_type; |
| 3084 | unsigned long cpu_subtype; |
| 3085 | |
| 3086 | bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype, |
| 3087 | &cpu_type, &cpu_subtype); |
| 3088 | if (cpu_type != arch->arch || cpu_subtype != arch->mach) |
| 3089 | continue; |
| 3090 | |
| 3091 | /* The architecture is found. */ |
| 3092 | res = _bfd_new_bfd_contained_in (abfd); |
| 3093 | if (res == NULL) |
| 3094 | return NULL; |
| 3095 | |
| 3096 | res->origin = e->offset; |
| 3097 | |
| 3098 | res->filename = strdup (abfd->filename); |
| 3099 | res->iostream = NULL; |
| 3100 | |
| 3101 | if (bfd_check_format (res, format)) |
| 3102 | { |
| 3103 | BFD_ASSERT (bfd_get_arch_info (res) == arch); |
| 3104 | return res; |
| 3105 | } |
| 3106 | bfd_close (res); |
| 3107 | return NULL; |
| 3108 | } |
| 3109 | |
| 3110 | return NULL; |
| 3111 | } |
| 3112 | |
| 3113 | int |
| 3114 | bfd_mach_o_lookup_section (bfd *abfd, |
| 3115 | asection *section, |
| 3116 | bfd_mach_o_load_command **mcommand, |
| 3117 | bfd_mach_o_section **msection) |
| 3118 | { |
| 3119 | struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd); |
| 3120 | unsigned int i, j, num; |
| 3121 | |
| 3122 | bfd_mach_o_load_command *ncmd = NULL; |
| 3123 | bfd_mach_o_section *nsect = NULL; |
| 3124 | |
| 3125 | BFD_ASSERT (mcommand != NULL); |
| 3126 | BFD_ASSERT (msection != NULL); |
| 3127 | |
| 3128 | num = 0; |
| 3129 | for (i = 0; i < md->header.ncmds; i++) |
| 3130 | { |
| 3131 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; |
| 3132 | struct bfd_mach_o_segment_command *seg = NULL; |
| 3133 | |
| 3134 | if (cmd->type != BFD_MACH_O_LC_SEGMENT |
| 3135 | || cmd->type != BFD_MACH_O_LC_SEGMENT_64) |
| 3136 | continue; |
| 3137 | seg = &cmd->command.segment; |
| 3138 | |
| 3139 | for (j = 0; j < seg->nsects; j++) |
| 3140 | { |
| 3141 | struct bfd_mach_o_section *sect = &seg->sections[j]; |
| 3142 | |
| 3143 | if (sect->bfdsection == section) |
| 3144 | { |
| 3145 | if (num == 0) |
| 3146 | { |
| 3147 | nsect = sect; |
| 3148 | ncmd = cmd; |
| 3149 | } |
| 3150 | num++; |
| 3151 | } |
| 3152 | } |
| 3153 | } |
| 3154 | |
| 3155 | *mcommand = ncmd; |
| 3156 | *msection = nsect; |
| 3157 | return num; |
| 3158 | } |
| 3159 | |
| 3160 | int |
| 3161 | bfd_mach_o_lookup_command (bfd *abfd, |
| 3162 | bfd_mach_o_load_command_type type, |
| 3163 | bfd_mach_o_load_command **mcommand) |
| 3164 | { |
| 3165 | struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd); |
| 3166 | bfd_mach_o_load_command *ncmd = NULL; |
| 3167 | unsigned int i, num; |
| 3168 | |
| 3169 | BFD_ASSERT (md != NULL); |
| 3170 | BFD_ASSERT (mcommand != NULL); |
| 3171 | |
| 3172 | num = 0; |
| 3173 | for (i = 0; i < md->header.ncmds; i++) |
| 3174 | { |
| 3175 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; |
| 3176 | |
| 3177 | if (cmd->type != type) |
| 3178 | continue; |
| 3179 | |
| 3180 | if (num == 0) |
| 3181 | ncmd = cmd; |
| 3182 | num++; |
| 3183 | } |
| 3184 | |
| 3185 | *mcommand = ncmd; |
| 3186 | return num; |
| 3187 | } |
| 3188 | |
| 3189 | unsigned long |
| 3190 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
| 3191 | { |
| 3192 | switch (type) |
| 3193 | { |
| 3194 | case BFD_MACH_O_CPU_TYPE_MC680x0: |
| 3195 | return 0x04000000; |
| 3196 | case BFD_MACH_O_CPU_TYPE_MC88000: |
| 3197 | return 0xffffe000; |
| 3198 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
| 3199 | return 0xc0000000; |
| 3200 | case BFD_MACH_O_CPU_TYPE_I386: |
| 3201 | return 0xc0000000; |
| 3202 | case BFD_MACH_O_CPU_TYPE_SPARC: |
| 3203 | return 0xf0000000; |
| 3204 | case BFD_MACH_O_CPU_TYPE_I860: |
| 3205 | return 0; |
| 3206 | case BFD_MACH_O_CPU_TYPE_HPPA: |
| 3207 | return 0xc0000000 - 0x04000000; |
| 3208 | default: |
| 3209 | return 0; |
| 3210 | } |
| 3211 | } |
| 3212 | |
| 3213 | typedef struct bfd_mach_o_xlat_name |
| 3214 | { |
| 3215 | const char *name; |
| 3216 | unsigned long val; |
| 3217 | } |
| 3218 | bfd_mach_o_xlat_name; |
| 3219 | |
| 3220 | static void |
| 3221 | bfd_mach_o_print_flags (const bfd_mach_o_xlat_name *table, |
| 3222 | unsigned long val, |
| 3223 | FILE *file) |
| 3224 | { |
| 3225 | int first = 1; |
| 3226 | |
| 3227 | for (; table->name; table++) |
| 3228 | { |
| 3229 | if (table->val & val) |
| 3230 | { |
| 3231 | if (!first) |
| 3232 | fprintf (file, "+"); |
| 3233 | fprintf (file, "%s", table->name); |
| 3234 | val &= ~table->val; |
| 3235 | first = 0; |
| 3236 | } |
| 3237 | } |
| 3238 | if (val) |
| 3239 | { |
| 3240 | if (!first) |
| 3241 | fprintf (file, "+"); |
| 3242 | fprintf (file, "0x%lx", val); |
| 3243 | return; |
| 3244 | } |
| 3245 | if (first) |
| 3246 | fprintf (file, "-"); |
| 3247 | } |
| 3248 | |
| 3249 | static const char * |
| 3250 | bfd_mach_o_get_name (const bfd_mach_o_xlat_name *table, unsigned long val) |
| 3251 | { |
| 3252 | for (; table->name; table++) |
| 3253 | if (table->val == val) |
| 3254 | return table->name; |
| 3255 | return "*UNKNOWN*"; |
| 3256 | } |
| 3257 | |
| 3258 | static bfd_mach_o_xlat_name bfd_mach_o_cpu_name[] = |
| 3259 | { |
| 3260 | { "vax", BFD_MACH_O_CPU_TYPE_VAX }, |
| 3261 | { "mc680x0", BFD_MACH_O_CPU_TYPE_MC680x0 }, |
| 3262 | { "i386", BFD_MACH_O_CPU_TYPE_I386 }, |
| 3263 | { "mips", BFD_MACH_O_CPU_TYPE_MIPS }, |
| 3264 | { "mc98000", BFD_MACH_O_CPU_TYPE_MC98000 }, |
| 3265 | { "hppa", BFD_MACH_O_CPU_TYPE_HPPA }, |
| 3266 | { "arm", BFD_MACH_O_CPU_TYPE_ARM }, |
| 3267 | { "mc88000", BFD_MACH_O_CPU_TYPE_MC88000 }, |
| 3268 | { "sparc", BFD_MACH_O_CPU_TYPE_SPARC }, |
| 3269 | { "i860", BFD_MACH_O_CPU_TYPE_I860 }, |
| 3270 | { "alpha", BFD_MACH_O_CPU_TYPE_ALPHA }, |
| 3271 | { "powerpc", BFD_MACH_O_CPU_TYPE_POWERPC }, |
| 3272 | { "powerpc_64", BFD_MACH_O_CPU_TYPE_POWERPC_64 }, |
| 3273 | { "x86_64", BFD_MACH_O_CPU_TYPE_X86_64 }, |
| 3274 | { NULL, 0} |
| 3275 | }; |
| 3276 | |
| 3277 | static bfd_mach_o_xlat_name bfd_mach_o_filetype_name[] = |
| 3278 | { |
| 3279 | { "object", BFD_MACH_O_MH_OBJECT }, |
| 3280 | { "execute", BFD_MACH_O_MH_EXECUTE }, |
| 3281 | { "fvmlib", BFD_MACH_O_MH_FVMLIB }, |
| 3282 | { "core", BFD_MACH_O_MH_CORE }, |
| 3283 | { "preload", BFD_MACH_O_MH_PRELOAD }, |
| 3284 | { "dylib", BFD_MACH_O_MH_DYLIB }, |
| 3285 | { "dylinker", BFD_MACH_O_MH_DYLINKER }, |
| 3286 | { "bundle", BFD_MACH_O_MH_BUNDLE }, |
| 3287 | { "dylib_stub", BFD_MACH_O_MH_DYLIB_STUB }, |
| 3288 | { "dym", BFD_MACH_O_MH_DSYM }, |
| 3289 | { "kext_bundle", BFD_MACH_O_MH_KEXT_BUNDLE }, |
| 3290 | { NULL, 0} |
| 3291 | }; |
| 3292 | |
| 3293 | static bfd_mach_o_xlat_name bfd_mach_o_header_flags_name[] = |
| 3294 | { |
| 3295 | { "noundefs", BFD_MACH_O_MH_NOUNDEFS }, |
| 3296 | { "incrlink", BFD_MACH_O_MH_INCRLINK }, |
| 3297 | { "dyldlink", BFD_MACH_O_MH_DYLDLINK }, |
| 3298 | { "bindatload", BFD_MACH_O_MH_BINDATLOAD }, |
| 3299 | { "prebound", BFD_MACH_O_MH_PREBOUND }, |
| 3300 | { "split_segs", BFD_MACH_O_MH_SPLIT_SEGS }, |
| 3301 | { "lazy_init", BFD_MACH_O_MH_LAZY_INIT }, |
| 3302 | { "twolevel", BFD_MACH_O_MH_TWOLEVEL }, |
| 3303 | { "force_flat", BFD_MACH_O_MH_FORCE_FLAT }, |
| 3304 | { "nomultidefs", BFD_MACH_O_MH_NOMULTIDEFS }, |
| 3305 | { "nofixprebinding", BFD_MACH_O_MH_NOFIXPREBINDING }, |
| 3306 | { "prebindable", BFD_MACH_O_MH_PREBINDABLE }, |
| 3307 | { "allmodsbound", BFD_MACH_O_MH_ALLMODSBOUND }, |
| 3308 | { "subsections_via_symbols", BFD_MACH_O_MH_SUBSECTIONS_VIA_SYMBOLS }, |
| 3309 | { "canonical", BFD_MACH_O_MH_CANONICAL }, |
| 3310 | { "weak_defines", BFD_MACH_O_MH_WEAK_DEFINES }, |
| 3311 | { "binds_to_weak", BFD_MACH_O_MH_BINDS_TO_WEAK }, |
| 3312 | { "allow_stack_execution", BFD_MACH_O_MH_ALLOW_STACK_EXECUTION }, |
| 3313 | { "root_safe", BFD_MACH_O_MH_ROOT_SAFE }, |
| 3314 | { "setuid_safe", BFD_MACH_O_MH_SETUID_SAFE }, |
| 3315 | { "no_reexported_dylibs", BFD_MACH_O_MH_NO_REEXPORTED_DYLIBS }, |
| 3316 | { "pie", BFD_MACH_O_MH_PIE }, |
| 3317 | { NULL, 0} |
| 3318 | }; |
| 3319 | |
| 3320 | static bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] = |
| 3321 | { |
| 3322 | { "regular", BFD_MACH_O_S_REGULAR}, |
| 3323 | { "zerofill", BFD_MACH_O_S_ZEROFILL}, |
| 3324 | { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS}, |
| 3325 | { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS}, |
| 3326 | { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS}, |
| 3327 | { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS}, |
| 3328 | { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS}, |
| 3329 | { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS}, |
| 3330 | { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS}, |
| 3331 | { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS}, |
| 3332 | { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS}, |
| 3333 | { "coalesced", BFD_MACH_O_S_COALESCED}, |
| 3334 | { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL}, |
| 3335 | { "interposing", BFD_MACH_O_S_INTERPOSING}, |
| 3336 | { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS}, |
| 3337 | { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF}, |
| 3338 | { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS}, |
| 3339 | { NULL, 0} |
| 3340 | }; |
| 3341 | |
| 3342 | static bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] = |
| 3343 | { |
| 3344 | { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC }, |
| 3345 | { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC }, |
| 3346 | { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS }, |
| 3347 | { "debug", BFD_MACH_O_S_ATTR_DEBUG }, |
| 3348 | { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE }, |
| 3349 | { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT }, |
| 3350 | { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP }, |
| 3351 | { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS }, |
| 3352 | { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC }, |
| 3353 | { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS }, |
| 3354 | { NULL, 0} |
| 3355 | }; |
| 3356 | |
| 3357 | static bfd_mach_o_xlat_name bfd_mach_o_load_command_name[] = |
| 3358 | { |
| 3359 | { "segment", BFD_MACH_O_LC_SEGMENT}, |
| 3360 | { "symtab", BFD_MACH_O_LC_SYMTAB}, |
| 3361 | { "symseg", BFD_MACH_O_LC_SYMSEG}, |
| 3362 | { "thread", BFD_MACH_O_LC_THREAD}, |
| 3363 | { "unixthread", BFD_MACH_O_LC_UNIXTHREAD}, |
| 3364 | { "loadfvmlib", BFD_MACH_O_LC_LOADFVMLIB}, |
| 3365 | { "idfvmlib", BFD_MACH_O_LC_IDFVMLIB}, |
| 3366 | { "ident", BFD_MACH_O_LC_IDENT}, |
| 3367 | { "fvmfile", BFD_MACH_O_LC_FVMFILE}, |
| 3368 | { "prepage", BFD_MACH_O_LC_PREPAGE}, |
| 3369 | { "dysymtab", BFD_MACH_O_LC_DYSYMTAB}, |
| 3370 | { "load_dylib", BFD_MACH_O_LC_LOAD_DYLIB}, |
| 3371 | { "id_dylib", BFD_MACH_O_LC_ID_DYLIB}, |
| 3372 | { "load_dylinker", BFD_MACH_O_LC_LOAD_DYLINKER}, |
| 3373 | { "id_dylinker", BFD_MACH_O_LC_ID_DYLINKER}, |
| 3374 | { "prebound_dylib", BFD_MACH_O_LC_PREBOUND_DYLIB}, |
| 3375 | { "routines", BFD_MACH_O_LC_ROUTINES}, |
| 3376 | { "sub_framework", BFD_MACH_O_LC_SUB_FRAMEWORK}, |
| 3377 | { "sub_umbrella", BFD_MACH_O_LC_SUB_UMBRELLA}, |
| 3378 | { "sub_client", BFD_MACH_O_LC_SUB_CLIENT}, |
| 3379 | { "sub_library", BFD_MACH_O_LC_SUB_LIBRARY}, |
| 3380 | { "twolevel_hints", BFD_MACH_O_LC_TWOLEVEL_HINTS}, |
| 3381 | { "prebind_cksum", BFD_MACH_O_LC_PREBIND_CKSUM}, |
| 3382 | { "load_weak_dylib", BFD_MACH_O_LC_LOAD_WEAK_DYLIB}, |
| 3383 | { "segment_64", BFD_MACH_O_LC_SEGMENT_64}, |
| 3384 | { "routines_64", BFD_MACH_O_LC_ROUTINES_64}, |
| 3385 | { "uuid", BFD_MACH_O_LC_UUID}, |
| 3386 | { "rpath", BFD_MACH_O_LC_RPATH}, |
| 3387 | { "code_signature", BFD_MACH_O_LC_CODE_SIGNATURE}, |
| 3388 | { "segment_split_info", BFD_MACH_O_LC_SEGMENT_SPLIT_INFO}, |
| 3389 | { "reexport_dylib", BFD_MACH_O_LC_REEXPORT_DYLIB}, |
| 3390 | { "lazy_load_dylib", BFD_MACH_O_LC_LAZY_LOAD_DYLIB}, |
| 3391 | { "encryption_info", BFD_MACH_O_LC_ENCRYPTION_INFO}, |
| 3392 | { "dyld_info", BFD_MACH_O_LC_DYLD_INFO}, |
| 3393 | { NULL, 0} |
| 3394 | }; |
| 3395 | |
| 3396 | static void |
| 3397 | bfd_mach_o_print_private_header (bfd *abfd, FILE *file) |
| 3398 | { |
| 3399 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 3400 | bfd_mach_o_header *h = &mdata->header; |
| 3401 | |
| 3402 | fputs (_("Mach-O header:\n"), file); |
| 3403 | fprintf (file, _(" magic : %08lx\n"), h->magic); |
| 3404 | fprintf (file, _(" cputype : %08lx (%s)\n"), h->cputype, |
| 3405 | bfd_mach_o_get_name (bfd_mach_o_cpu_name, h->cputype)); |
| 3406 | fprintf (file, _(" cpusubtype: %08lx\n"), h->cpusubtype); |
| 3407 | fprintf (file, _(" filetype : %08lx (%s)\n"), |
| 3408 | h->filetype, |
| 3409 | bfd_mach_o_get_name (bfd_mach_o_filetype_name, h->filetype)); |
| 3410 | fprintf (file, _(" ncmds : %08lx (%lu)\n"), h->ncmds, h->ncmds); |
| 3411 | fprintf (file, _(" sizeofcmds: %08lx\n"), h->sizeofcmds); |
| 3412 | fprintf (file, _(" flags : %08lx ("), h->flags); |
| 3413 | bfd_mach_o_print_flags (bfd_mach_o_header_flags_name, h->flags, file); |
| 3414 | fputs (_(")\n"), file); |
| 3415 | fprintf (file, _(" reserved : %08x\n"), h->reserved); |
| 3416 | } |
| 3417 | |
| 3418 | static void |
| 3419 | bfd_mach_o_print_section_map (bfd *abfd, FILE *file) |
| 3420 | { |
| 3421 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 3422 | unsigned int i, j; |
| 3423 | unsigned int sec_nbr = 0; |
| 3424 | |
| 3425 | fputs (_("Segments and Sections:\n"), file); |
| 3426 | fputs (_(" #: Segment name Section name Address\n"), file); |
| 3427 | |
| 3428 | for (i = 0; i < mdata->header.ncmds; i++) |
| 3429 | { |
| 3430 | bfd_mach_o_segment_command *seg; |
| 3431 | |
| 3432 | if (mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT |
| 3433 | && mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT_64) |
| 3434 | continue; |
| 3435 | |
| 3436 | seg = &mdata->commands[i].command.segment; |
| 3437 | |
| 3438 | fprintf (file, "[Segment %-16s ", seg->segname); |
| 3439 | fprintf_vma (file, seg->vmaddr); |
| 3440 | fprintf (file, "-"); |
| 3441 | fprintf_vma (file, seg->vmaddr + seg->vmsize - 1); |
| 3442 | fputc (' ', file); |
| 3443 | fputc (seg->initprot & BFD_MACH_O_PROT_READ ? 'r' : '-', file); |
| 3444 | fputc (seg->initprot & BFD_MACH_O_PROT_WRITE ? 'w' : '-', file); |
| 3445 | fputc (seg->initprot & BFD_MACH_O_PROT_EXECUTE ? 'x' : '-', file); |
| 3446 | fprintf (file, "]\n"); |
| 3447 | for (j = 0; j < seg->nsects; j++) |
| 3448 | { |
| 3449 | bfd_mach_o_section *sec = &seg->sections[j]; |
| 3450 | fprintf (file, "%02u: %-16s %-16s ", ++sec_nbr, |
| 3451 | sec->segname, sec->sectname); |
| 3452 | fprintf_vma (file, sec->addr); |
| 3453 | fprintf (file, " "); |
| 3454 | fprintf_vma (file, sec->size); |
| 3455 | fprintf (file, " %08lx\n", sec->flags); |
| 3456 | } |
| 3457 | } |
| 3458 | } |
| 3459 | |
| 3460 | static void |
| 3461 | bfd_mach_o_print_section (bfd *abfd ATTRIBUTE_UNUSED, |
| 3462 | bfd_mach_o_section *sec, FILE *file) |
| 3463 | { |
| 3464 | fprintf (file, " Section: %-16s %-16s (bfdname: %s)\n", |
| 3465 | sec->sectname, sec->segname, sec->bfdsection->name); |
| 3466 | fprintf (file, " addr: "); |
| 3467 | fprintf_vma (file, sec->addr); |
| 3468 | fprintf (file, " size: "); |
| 3469 | fprintf_vma (file, sec->size); |
| 3470 | fprintf (file, " offset: "); |
| 3471 | fprintf_vma (file, sec->offset); |
| 3472 | fprintf (file, "\n"); |
| 3473 | fprintf (file, " align: %ld", sec->align); |
| 3474 | fprintf (file, " nreloc: %lu reloff: ", sec->nreloc); |
| 3475 | fprintf_vma (file, sec->reloff); |
| 3476 | fprintf (file, "\n"); |
| 3477 | fprintf (file, " flags: %08lx (type: %s", sec->flags, |
| 3478 | bfd_mach_o_get_name (bfd_mach_o_section_type_name, |
| 3479 | sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)); |
| 3480 | fprintf (file, " attr: "); |
| 3481 | bfd_mach_o_print_flags (bfd_mach_o_section_attribute_name, |
| 3482 | sec->flags & BFD_MACH_O_SECTION_ATTRIBUTES_MASK, |
| 3483 | file); |
| 3484 | fprintf (file, ")\n"); |
| 3485 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
| 3486 | { |
| 3487 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: |
| 3488 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: |
| 3489 | case BFD_MACH_O_S_SYMBOL_STUBS: |
| 3490 | fprintf (file, " first indirect sym: %lu", sec->reserved1); |
| 3491 | fprintf (file, " (%u entries)", |
| 3492 | bfd_mach_o_section_get_nbr_indirect (abfd, sec)); |
| 3493 | break; |
| 3494 | default: |
| 3495 | fprintf (file, " reserved1: 0x%lx", sec->reserved1); |
| 3496 | break; |
| 3497 | } |
| 3498 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
| 3499 | { |
| 3500 | case BFD_MACH_O_S_SYMBOL_STUBS: |
| 3501 | fprintf (file, " stub size: %lu", sec->reserved2); |
| 3502 | break; |
| 3503 | default: |
| 3504 | fprintf (file, " reserved2: 0x%lx", sec->reserved2); |
| 3505 | break; |
| 3506 | } |
| 3507 | fprintf (file, " reserved3: 0x%lx\n", sec->reserved3); |
| 3508 | } |
| 3509 | |
| 3510 | static void |
| 3511 | bfd_mach_o_print_segment (bfd *abfd ATTRIBUTE_UNUSED, |
| 3512 | bfd_mach_o_load_command *cmd, FILE *file) |
| 3513 | { |
| 3514 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
| 3515 | unsigned int i; |
| 3516 | |
| 3517 | fprintf (file, " name: %s\n", *seg->segname ? seg->segname : "*none*"); |
| 3518 | fprintf (file, " vmaddr: "); |
| 3519 | fprintf_vma (file, seg->vmaddr); |
| 3520 | fprintf (file, " vmsize: "); |
| 3521 | fprintf_vma (file, seg->vmsize); |
| 3522 | fprintf (file, "\n"); |
| 3523 | fprintf (file, " fileoff: "); |
| 3524 | fprintf_vma (file, seg->fileoff); |
| 3525 | fprintf (file, " filesize: "); |
| 3526 | fprintf_vma (file, (bfd_vma)seg->filesize); |
| 3527 | fprintf (file, " endoff: "); |
| 3528 | fprintf_vma (file, (bfd_vma)(seg->fileoff + seg->filesize)); |
| 3529 | fprintf (file, "\n"); |
| 3530 | fprintf (file, " nsects: %lu ", seg->nsects); |
| 3531 | fprintf (file, " flags: %lx\n", seg->flags); |
| 3532 | for (i = 0; i < seg->nsects; i++) |
| 3533 | bfd_mach_o_print_section (abfd, &seg->sections[i], file); |
| 3534 | } |
| 3535 | |
| 3536 | static void |
| 3537 | bfd_mach_o_print_dysymtab (bfd *abfd ATTRIBUTE_UNUSED, |
| 3538 | bfd_mach_o_load_command *cmd, FILE *file) |
| 3539 | { |
| 3540 | bfd_mach_o_dysymtab_command *dysymtab = &cmd->command.dysymtab; |
| 3541 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 3542 | unsigned int i; |
| 3543 | |
| 3544 | fprintf (file, " local symbols: idx: %10lu num: %-8lu", |
| 3545 | dysymtab->ilocalsym, dysymtab->nlocalsym); |
| 3546 | fprintf (file, " (nxtidx: %lu)\n", |
| 3547 | dysymtab->ilocalsym + dysymtab->nlocalsym); |
| 3548 | fprintf (file, " external symbols: idx: %10lu num: %-8lu", |
| 3549 | dysymtab->iextdefsym, dysymtab->nextdefsym); |
| 3550 | fprintf (file, " (nxtidx: %lu)\n", |
| 3551 | dysymtab->iextdefsym + dysymtab->nextdefsym); |
| 3552 | fprintf (file, " undefined symbols: idx: %10lu num: %-8lu", |
| 3553 | dysymtab->iundefsym, dysymtab->nundefsym); |
| 3554 | fprintf (file, " (nxtidx: %lu)\n", |
| 3555 | dysymtab->iundefsym + dysymtab->nundefsym); |
| 3556 | fprintf (file, " table of content: off: 0x%08lx num: %-8lu", |
| 3557 | dysymtab->tocoff, dysymtab->ntoc); |
| 3558 | fprintf (file, " (endoff: 0x%08lx)\n", |
| 3559 | dysymtab->tocoff |
| 3560 | + dysymtab->ntoc * BFD_MACH_O_TABLE_OF_CONTENT_SIZE); |
| 3561 | fprintf (file, " module table: off: 0x%08lx num: %-8lu", |
| 3562 | dysymtab->modtaboff, dysymtab->nmodtab); |
| 3563 | fprintf (file, " (endoff: 0x%08lx)\n", |
| 3564 | dysymtab->modtaboff + dysymtab->nmodtab |
| 3565 | * (mach_o_wide_p (&mdata->header) ? |
| 3566 | BFD_MACH_O_DYLIB_MODULE_64_SIZE : BFD_MACH_O_DYLIB_MODULE_SIZE)); |
| 3567 | fprintf (file, " external reference table: off: 0x%08lx num: %-8lu", |
| 3568 | dysymtab->extrefsymoff, dysymtab->nextrefsyms); |
| 3569 | fprintf (file, " (endoff: 0x%08lx)\n", |
| 3570 | dysymtab->extrefsymoff |
| 3571 | + dysymtab->nextrefsyms * BFD_MACH_O_REFERENCE_SIZE); |
| 3572 | fprintf (file, " indirect symbol table: off: 0x%08lx num: %-8lu", |
| 3573 | dysymtab->indirectsymoff, dysymtab->nindirectsyms); |
| 3574 | fprintf (file, " (endoff: 0x%08lx)\n", |
| 3575 | dysymtab->indirectsymoff |
| 3576 | + dysymtab->nindirectsyms * BFD_MACH_O_INDIRECT_SYMBOL_SIZE); |
| 3577 | fprintf (file, " external relocation table: off: 0x%08lx num: %-8lu", |
| 3578 | dysymtab->extreloff, dysymtab->nextrel); |
| 3579 | fprintf (file, " (endoff: 0x%08lx)\n", |
| 3580 | dysymtab->extreloff + dysymtab->nextrel * BFD_MACH_O_RELENT_SIZE); |
| 3581 | fprintf (file, " local relocation table: off: 0x%08lx num: %-8lu", |
| 3582 | dysymtab->locreloff, dysymtab->nlocrel); |
| 3583 | fprintf (file, " (endoff: 0x%08lx)\n", |
| 3584 | dysymtab->locreloff + dysymtab->nlocrel * BFD_MACH_O_RELENT_SIZE); |
| 3585 | |
| 3586 | if (dysymtab->ntoc > 0 |
| 3587 | || dysymtab->nindirectsyms > 0 |
| 3588 | || dysymtab->nextrefsyms > 0) |
| 3589 | { |
| 3590 | /* Try to read the symbols to display the toc or indirect symbols. */ |
| 3591 | bfd_mach_o_read_symtab_symbols (abfd); |
| 3592 | } |
| 3593 | else if (dysymtab->nmodtab > 0) |
| 3594 | { |
| 3595 | /* Try to read the strtab to display modules name. */ |
| 3596 | bfd_mach_o_read_symtab_strtab (abfd); |
| 3597 | } |
| 3598 | |
| 3599 | for (i = 0; i < dysymtab->nmodtab; i++) |
| 3600 | { |
| 3601 | bfd_mach_o_dylib_module *module = &dysymtab->dylib_module[i]; |
| 3602 | fprintf (file, " module %u:\n", i); |
| 3603 | fprintf (file, " name: %lu", module->module_name_idx); |
| 3604 | if (mdata->symtab && mdata->symtab->strtab) |
| 3605 | fprintf (file, ": %s", |
| 3606 | mdata->symtab->strtab + module->module_name_idx); |
| 3607 | fprintf (file, "\n"); |
| 3608 | fprintf (file, " extdefsym: idx: %8lu num: %lu\n", |
| 3609 | module->iextdefsym, module->nextdefsym); |
| 3610 | fprintf (file, " refsym: idx: %8lu num: %lu\n", |
| 3611 | module->irefsym, module->nrefsym); |
| 3612 | fprintf (file, " localsym: idx: %8lu num: %lu\n", |
| 3613 | module->ilocalsym, module->nlocalsym); |
| 3614 | fprintf (file, " extrel: idx: %8lu num: %lu\n", |
| 3615 | module->iextrel, module->nextrel); |
| 3616 | fprintf (file, " init: idx: %8u num: %u\n", |
| 3617 | module->iinit, module->ninit); |
| 3618 | fprintf (file, " term: idx: %8u num: %u\n", |
| 3619 | module->iterm, module->nterm); |
| 3620 | fprintf (file, " objc_module_info: addr: "); |
| 3621 | fprintf_vma (file, module->objc_module_info_addr); |
| 3622 | fprintf (file, " size: %lu\n", module->objc_module_info_size); |
| 3623 | } |
| 3624 | |
| 3625 | if (dysymtab->ntoc > 0) |
| 3626 | { |
| 3627 | bfd_mach_o_symtab_command *symtab = mdata->symtab; |
| 3628 | |
| 3629 | fprintf (file, " table of content: (symbol/module)\n"); |
| 3630 | for (i = 0; i < dysymtab->ntoc; i++) |
| 3631 | { |
| 3632 | bfd_mach_o_dylib_table_of_content *toc = &dysymtab->dylib_toc[i]; |
| 3633 | |
| 3634 | fprintf (file, " %4u: ", i); |
| 3635 | if (symtab && symtab->symbols && toc->symbol_index < symtab->nsyms) |
| 3636 | { |
| 3637 | const char *name = symtab->symbols[toc->symbol_index].symbol.name; |
| 3638 | fprintf (file, "%s (%lu)", name ? name : "*invalid*", |
| 3639 | toc->symbol_index); |
| 3640 | } |
| 3641 | else |
| 3642 | fprintf (file, "%lu", toc->symbol_index); |
| 3643 | |
| 3644 | fprintf (file, " / "); |
| 3645 | if (symtab && symtab->strtab |
| 3646 | && toc->module_index < dysymtab->nmodtab) |
| 3647 | { |
| 3648 | bfd_mach_o_dylib_module *mod; |
| 3649 | mod = &dysymtab->dylib_module[toc->module_index]; |
| 3650 | fprintf (file, "%s (%lu)", |
| 3651 | symtab->strtab + mod->module_name_idx, |
| 3652 | toc->module_index); |
| 3653 | } |
| 3654 | else |
| 3655 | fprintf (file, "%lu", toc->module_index); |
| 3656 | |
| 3657 | fprintf (file, "\n"); |
| 3658 | } |
| 3659 | } |
| 3660 | |
| 3661 | if (dysymtab->nindirectsyms != 0) |
| 3662 | { |
| 3663 | fprintf (file, " indirect symbols:\n"); |
| 3664 | |
| 3665 | for (i = 0; i < mdata->nsects; i++) |
| 3666 | { |
| 3667 | bfd_mach_o_section *sec = mdata->sections[i]; |
| 3668 | unsigned int j, first, last; |
| 3669 | bfd_mach_o_symtab_command *symtab = mdata->symtab; |
| 3670 | bfd_vma addr; |
| 3671 | bfd_vma entry_size; |
| 3672 | |
| 3673 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
| 3674 | { |
| 3675 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: |
| 3676 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: |
| 3677 | case BFD_MACH_O_S_SYMBOL_STUBS: |
| 3678 | first = sec->reserved1; |
| 3679 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); |
| 3680 | addr = sec->addr; |
| 3681 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); |
| 3682 | fprintf (file, " for section %s.%s:\n", |
| 3683 | sec->segname, sec->sectname); |
| 3684 | for (j = first; j < last; j++) |
| 3685 | { |
| 3686 | unsigned int isym = dysymtab->indirect_syms[j]; |
| 3687 | |
| 3688 | fprintf (file, " "); |
| 3689 | fprintf_vma (file, addr); |
| 3690 | fprintf (file, " %5u: 0x%08x", j, isym); |
| 3691 | if (isym & BFD_MACH_O_INDIRECT_SYMBOL_LOCAL) |
| 3692 | fprintf (file, " LOCAL"); |
| 3693 | if (isym & BFD_MACH_O_INDIRECT_SYMBOL_ABS) |
| 3694 | fprintf (file, " ABSOLUTE"); |
| 3695 | if (symtab && symtab->symbols |
| 3696 | && isym < symtab->nsyms |
| 3697 | && symtab->symbols[isym].symbol.name) |
| 3698 | fprintf (file, " %s", symtab->symbols[isym].symbol.name); |
| 3699 | fprintf (file, "\n"); |
| 3700 | addr += entry_size; |
| 3701 | } |
| 3702 | break; |
| 3703 | default: |
| 3704 | break; |
| 3705 | } |
| 3706 | } |
| 3707 | } |
| 3708 | if (dysymtab->nextrefsyms > 0) |
| 3709 | { |
| 3710 | bfd_mach_o_symtab_command *symtab = mdata->symtab; |
| 3711 | |
| 3712 | fprintf (file, " external reference table: (symbol flags)\n"); |
| 3713 | for (i = 0; i < dysymtab->nextrefsyms; i++) |
| 3714 | { |
| 3715 | bfd_mach_o_dylib_reference *ref = &dysymtab->ext_refs[i]; |
| 3716 | |
| 3717 | fprintf (file, " %4u: %5lu 0x%02lx", i, ref->isym, ref->flags); |
| 3718 | if (symtab && symtab->symbols |
| 3719 | && ref->isym < symtab->nsyms |
| 3720 | && symtab->symbols[ref->isym].symbol.name) |
| 3721 | fprintf (file, " %s", symtab->symbols[ref->isym].symbol.name); |
| 3722 | fprintf (file, "\n"); |
| 3723 | } |
| 3724 | } |
| 3725 | |
| 3726 | } |
| 3727 | |
| 3728 | static void |
| 3729 | bfd_mach_o_print_dyld_info (bfd *abfd ATTRIBUTE_UNUSED, |
| 3730 | bfd_mach_o_load_command *cmd, FILE *file) |
| 3731 | { |
| 3732 | bfd_mach_o_dyld_info_command *info = &cmd->command.dyld_info; |
| 3733 | |
| 3734 | fprintf (file, " rebase: off: 0x%08x size: %-8u\n", |
| 3735 | info->rebase_off, info->rebase_size); |
| 3736 | fprintf (file, " bind: off: 0x%08x size: %-8u\n", |
| 3737 | info->bind_off, info->bind_size); |
| 3738 | fprintf (file, " weak bind: off: 0x%08x size: %-8u\n", |
| 3739 | info->weak_bind_off, info->weak_bind_size); |
| 3740 | fprintf (file, " lazy bind: off: 0x%08x size: %-8u\n", |
| 3741 | info->lazy_bind_off, info->lazy_bind_size); |
| 3742 | fprintf (file, " export: off: 0x%08x size: %-8u\n", |
| 3743 | info->export_off, info->export_size); |
| 3744 | } |
| 3745 | |
| 3746 | bfd_boolean |
| 3747 | bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, void * ptr) |
| 3748 | { |
| 3749 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 3750 | FILE *file = (FILE *) ptr; |
| 3751 | unsigned int i; |
| 3752 | |
| 3753 | bfd_mach_o_print_private_header (abfd, file); |
| 3754 | fputc ('\n', file); |
| 3755 | |
| 3756 | for (i = 0; i < mdata->header.ncmds; i++) |
| 3757 | { |
| 3758 | bfd_mach_o_load_command *cmd = &mdata->commands[i]; |
| 3759 | |
| 3760 | fprintf (file, "Load command %s:", |
| 3761 | bfd_mach_o_get_name (bfd_mach_o_load_command_name, cmd->type)); |
| 3762 | switch (cmd->type) |
| 3763 | { |
| 3764 | case BFD_MACH_O_LC_SEGMENT: |
| 3765 | case BFD_MACH_O_LC_SEGMENT_64: |
| 3766 | bfd_mach_o_print_segment (abfd, cmd, file); |
| 3767 | break; |
| 3768 | case BFD_MACH_O_LC_UUID: |
| 3769 | { |
| 3770 | bfd_mach_o_uuid_command *uuid = &cmd->command.uuid; |
| 3771 | unsigned int j; |
| 3772 | |
| 3773 | for (j = 0; j < sizeof (uuid->uuid); j ++) |
| 3774 | fprintf (file, " %02x", uuid->uuid[j]); |
| 3775 | fputc ('\n', file); |
| 3776 | } |
| 3777 | break; |
| 3778 | case BFD_MACH_O_LC_LOAD_DYLIB: |
| 3779 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
| 3780 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
| 3781 | case BFD_MACH_O_LC_ID_DYLIB: |
| 3782 | { |
| 3783 | bfd_mach_o_dylib_command *dylib = &cmd->command.dylib; |
| 3784 | fprintf (file, " %s\n", dylib->name_str); |
| 3785 | fprintf (file, " time stamp: 0x%08lx\n", |
| 3786 | dylib->timestamp); |
| 3787 | fprintf (file, " current version: 0x%08lx\n", |
| 3788 | dylib->current_version); |
| 3789 | fprintf (file, " comptibility version: 0x%08lx\n", |
| 3790 | dylib->compatibility_version); |
| 3791 | break; |
| 3792 | } |
| 3793 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
| 3794 | case BFD_MACH_O_LC_ID_DYLINKER: |
| 3795 | fprintf (file, " %s\n", cmd->command.dylinker.name_str); |
| 3796 | break; |
| 3797 | case BFD_MACH_O_LC_SYMTAB: |
| 3798 | { |
| 3799 | bfd_mach_o_symtab_command *symtab = &cmd->command.symtab; |
| 3800 | fprintf (file, |
| 3801 | "\n" |
| 3802 | " symoff: 0x%08x nsyms: %8u (endoff: 0x%08x)\n", |
| 3803 | symtab->symoff, symtab->nsyms, |
| 3804 | symtab->symoff + symtab->nsyms |
| 3805 | * (mach_o_wide_p (&mdata->header) |
| 3806 | ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE)); |
| 3807 | fprintf (file, |
| 3808 | " stroff: 0x%08x strsize: %8u (endoff: 0x%08x)\n", |
| 3809 | symtab->stroff, symtab->strsize, |
| 3810 | symtab->stroff + symtab->strsize); |
| 3811 | break; |
| 3812 | } |
| 3813 | case BFD_MACH_O_LC_DYSYMTAB: |
| 3814 | fprintf (file, "\n"); |
| 3815 | bfd_mach_o_print_dysymtab (abfd, cmd, file); |
| 3816 | break; |
| 3817 | case BFD_MACH_O_LC_CODE_SIGNATURE: |
| 3818 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
| 3819 | { |
| 3820 | bfd_mach_o_linkedit_command *linkedit = &cmd->command.linkedit; |
| 3821 | fprintf |
| 3822 | (file, "\n" |
| 3823 | " dataoff: 0x%08lx datasize: 0x%08lx (endoff: 0x%08lx)\n", |
| 3824 | linkedit->dataoff, linkedit->datasize, |
| 3825 | linkedit->dataoff + linkedit->datasize); |
| 3826 | break; |
| 3827 | } |
| 3828 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
| 3829 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
| 3830 | case BFD_MACH_O_LC_SUB_LIBRARY: |
| 3831 | case BFD_MACH_O_LC_SUB_CLIENT: |
| 3832 | case BFD_MACH_O_LC_RPATH: |
| 3833 | { |
| 3834 | bfd_mach_o_str_command *str = &cmd->command.str; |
| 3835 | fprintf (file, " %s\n", str->str); |
| 3836 | break; |
| 3837 | } |
| 3838 | case BFD_MACH_O_LC_THREAD: |
| 3839 | case BFD_MACH_O_LC_UNIXTHREAD: |
| 3840 | { |
| 3841 | bfd_mach_o_thread_command *thread = &cmd->command.thread; |
| 3842 | unsigned int j; |
| 3843 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
| 3844 | |
| 3845 | fprintf (file, " nflavours: %lu\n", thread->nflavours); |
| 3846 | for (j = 0; j < thread->nflavours; j++) |
| 3847 | { |
| 3848 | bfd_mach_o_thread_flavour *flavour = &thread->flavours[j]; |
| 3849 | |
| 3850 | fprintf (file, " %2u: flavour: 0x%08lx offset: 0x%08lx" |
| 3851 | " size: 0x%08lx\n", |
| 3852 | j, flavour->flavour, flavour->offset, |
| 3853 | flavour->size); |
| 3854 | if (bed->_bfd_mach_o_print_thread) |
| 3855 | { |
| 3856 | char *buf = bfd_malloc (flavour->size); |
| 3857 | |
| 3858 | if (buf |
| 3859 | && bfd_seek (abfd, flavour->offset, SEEK_SET) == 0 |
| 3860 | && (bfd_bread (buf, flavour->size, abfd) |
| 3861 | == flavour->size)) |
| 3862 | (*bed->_bfd_mach_o_print_thread)(abfd, flavour, |
| 3863 | file, buf); |
| 3864 | free (buf); |
| 3865 | } |
| 3866 | } |
| 3867 | break; |
| 3868 | } |
| 3869 | case BFD_MACH_O_LC_DYLD_INFO: |
| 3870 | fprintf (file, "\n"); |
| 3871 | bfd_mach_o_print_dyld_info (abfd, cmd, file); |
| 3872 | break; |
| 3873 | default: |
| 3874 | fprintf (file, "\n"); |
| 3875 | break; |
| 3876 | } |
| 3877 | fputc ('\n', file); |
| 3878 | } |
| 3879 | |
| 3880 | bfd_mach_o_print_section_map (abfd, file); |
| 3881 | |
| 3882 | return TRUE; |
| 3883 | } |
| 3884 | |
| 3885 | int |
| 3886 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
| 3887 | unsigned char **rbuf, |
| 3888 | unsigned int *rlen) |
| 3889 | { |
| 3890 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 3891 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
| 3892 | unsigned int i = 0; |
| 3893 | |
| 3894 | for (i = 0; i < mdata->header.ncmds; i++) |
| 3895 | { |
| 3896 | bfd_mach_o_load_command *cur = &mdata->commands[i]; |
| 3897 | bfd_mach_o_segment_command *seg = NULL; |
| 3898 | |
| 3899 | if (cur->type != BFD_MACH_O_LC_SEGMENT) |
| 3900 | continue; |
| 3901 | |
| 3902 | seg = &cur->command.segment; |
| 3903 | |
| 3904 | if ((seg->vmaddr + seg->vmsize) == stackaddr) |
| 3905 | { |
| 3906 | unsigned long start = seg->fileoff; |
| 3907 | unsigned long end = seg->fileoff + seg->filesize; |
| 3908 | unsigned char *buf = bfd_malloc (1024); |
| 3909 | unsigned long size = 1024; |
| 3910 | |
| 3911 | for (;;) |
| 3912 | { |
| 3913 | bfd_size_type nread = 0; |
| 3914 | unsigned long offset; |
| 3915 | int found_nonnull = 0; |
| 3916 | |
| 3917 | if (size > (end - start)) |
| 3918 | size = (end - start); |
| 3919 | |
| 3920 | buf = bfd_realloc_or_free (buf, size); |
| 3921 | if (buf == NULL) |
| 3922 | return -1; |
| 3923 | |
| 3924 | if (bfd_seek (abfd, end - size, SEEK_SET) != 0) |
| 3925 | { |
| 3926 | free (buf); |
| 3927 | return -1; |
| 3928 | } |
| 3929 | |
| 3930 | nread = bfd_bread (buf, size, abfd); |
| 3931 | |
| 3932 | if (nread != size) |
| 3933 | { |
| 3934 | free (buf); |
| 3935 | return -1; |
| 3936 | } |
| 3937 | |
| 3938 | for (offset = 4; offset <= size; offset += 4) |
| 3939 | { |
| 3940 | unsigned long val; |
| 3941 | |
| 3942 | val = *((unsigned long *) (buf + size - offset)); |
| 3943 | if (! found_nonnull) |
| 3944 | { |
| 3945 | if (val != 0) |
| 3946 | found_nonnull = 1; |
| 3947 | } |
| 3948 | else if (val == 0x0) |
| 3949 | { |
| 3950 | unsigned long bottom; |
| 3951 | unsigned long top; |
| 3952 | |
| 3953 | bottom = seg->fileoff + seg->filesize - offset; |
| 3954 | top = seg->fileoff + seg->filesize - 4; |
| 3955 | *rbuf = bfd_malloc (top - bottom); |
| 3956 | *rlen = top - bottom; |
| 3957 | |
| 3958 | memcpy (*rbuf, buf + size - *rlen, *rlen); |
| 3959 | free (buf); |
| 3960 | return 0; |
| 3961 | } |
| 3962 | } |
| 3963 | |
| 3964 | if (size == (end - start)) |
| 3965 | break; |
| 3966 | |
| 3967 | size *= 2; |
| 3968 | } |
| 3969 | |
| 3970 | free (buf); |
| 3971 | } |
| 3972 | } |
| 3973 | |
| 3974 | return -1; |
| 3975 | } |
| 3976 | |
| 3977 | char * |
| 3978 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
| 3979 | { |
| 3980 | unsigned char *buf = NULL; |
| 3981 | unsigned int len = 0; |
| 3982 | int ret = -1; |
| 3983 | |
| 3984 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); |
| 3985 | if (ret < 0) |
| 3986 | return NULL; |
| 3987 | |
| 3988 | return (char *) buf; |
| 3989 | } |
| 3990 | |
| 3991 | int |
| 3992 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
| 3993 | { |
| 3994 | return 0; |
| 3995 | } |
| 3996 | |
| 3997 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
| 3998 | #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup |
| 3999 | |
| 4000 | #define bfd_mach_o_swap_reloc_in NULL |
| 4001 | #define bfd_mach_o_swap_reloc_out NULL |
| 4002 | #define bfd_mach_o_print_thread NULL |
| 4003 | |
| 4004 | #define TARGET_NAME mach_o_be_vec |
| 4005 | #define TARGET_STRING "mach-o-be" |
| 4006 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
| 4007 | #define TARGET_BIG_ENDIAN 1 |
| 4008 | #define TARGET_ARCHIVE 0 |
| 4009 | #include "mach-o-target.c" |
| 4010 | |
| 4011 | #undef TARGET_NAME |
| 4012 | #undef TARGET_STRING |
| 4013 | #undef TARGET_ARCHITECTURE |
| 4014 | #undef TARGET_BIG_ENDIAN |
| 4015 | #undef TARGET_ARCHIVE |
| 4016 | |
| 4017 | #define TARGET_NAME mach_o_le_vec |
| 4018 | #define TARGET_STRING "mach-o-le" |
| 4019 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
| 4020 | #define TARGET_BIG_ENDIAN 0 |
| 4021 | #define TARGET_ARCHIVE 0 |
| 4022 | |
| 4023 | #include "mach-o-target.c" |
| 4024 | |
| 4025 | #undef TARGET_NAME |
| 4026 | #undef TARGET_STRING |
| 4027 | #undef TARGET_ARCHITECTURE |
| 4028 | #undef TARGET_BIG_ENDIAN |
| 4029 | #undef TARGET_ARCHIVE |
| 4030 | |
| 4031 | /* Not yet handled: creating an archive. */ |
| 4032 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive |
| 4033 | |
| 4034 | /* Not used. */ |
| 4035 | #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr |
| 4036 | #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr |
| 4037 | #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap |
| 4038 | #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table |
| 4039 | #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table |
| 4040 | #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname |
| 4041 | #define bfd_mach_o_write_armap _bfd_noarchive_write_armap |
| 4042 | #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index |
| 4043 | #define bfd_mach_o_generic_stat_arch_elt _bfd_noarchive_generic_stat_arch_elt |
| 4044 | #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp |
| 4045 | |
| 4046 | #define TARGET_NAME mach_o_fat_vec |
| 4047 | #define TARGET_STRING "mach-o-fat" |
| 4048 | #define TARGET_ARCHITECTURE bfd_arch_unknown |
| 4049 | #define TARGET_BIG_ENDIAN 1 |
| 4050 | #define TARGET_ARCHIVE 1 |
| 4051 | |
| 4052 | #include "mach-o-target.c" |
| 4053 | |
| 4054 | #undef TARGET_NAME |
| 4055 | #undef TARGET_STRING |
| 4056 | #undef TARGET_ARCHITECTURE |
| 4057 | #undef TARGET_BIG_ENDIAN |
| 4058 | #undef TARGET_ARCHIVE |