| 1 | /* BFD back-end for VERSAdos-E objects. |
| 2 | |
| 3 | Versados is a Motorola trademark. |
| 4 | |
| 5 | Copyright 1995 Free Software Foundation, Inc. |
| 6 | Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>. |
| 7 | |
| 8 | This file is part of BFD, the Binary File Descriptor library. |
| 9 | |
| 10 | This program is free software; you can redistribute it and/or modify |
| 11 | it under the terms of the GNU General Public License as published by |
| 12 | the Free Software Foundation; either version 2 of the License, or |
| 13 | (at your option) any later version. |
| 14 | |
| 15 | This program is distributed in the hope that it will be useful, |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | GNU General Public License for more details. |
| 19 | |
| 20 | You should have received a copy of the GNU General Public License |
| 21 | along with this program; if not, write to the Free Software |
| 22 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 23 | |
| 24 | /* |
| 25 | SUBSECTION |
| 26 | VERSAdos-E relocateable object file format |
| 27 | |
| 28 | DESCRIPTION |
| 29 | |
| 30 | This module supports reading of VERSAdos relocateable |
| 31 | object files. |
| 32 | |
| 33 | A VERSAdos file looks like contains |
| 34 | |
| 35 | o Indentification Record |
| 36 | o External Symbol Definition Record |
| 37 | o Object Text Recrod |
| 38 | o End Record |
| 39 | |
| 40 | |
| 41 | */ |
| 42 | |
| 43 | #include "bfd.h" |
| 44 | #include "sysdep.h" |
| 45 | #include "libbfd.h" |
| 46 | #include "libiberty.h" |
| 47 | |
| 48 | |
| 49 | static boolean versados_mkobject PARAMS ((bfd *)); |
| 50 | static boolean versados_scan PARAMS ((bfd *)); |
| 51 | static const bfd_target *versados_object_p PARAMS ((bfd *)); |
| 52 | |
| 53 | |
| 54 | #define VHEADER '1' |
| 55 | #define VESTDEF '2' |
| 56 | #define VOTR '3' |
| 57 | #define VEND '4' |
| 58 | |
| 59 | |
| 60 | #define ES_BASE 17 /* first symbol has esdid 17 */ |
| 61 | |
| 62 | /* Per file target dependent information */ |
| 63 | |
| 64 | /* one for each section */ |
| 65 | struct esdid |
| 66 | { |
| 67 | asection *section; /* ptr to bfd version */ |
| 68 | unsigned char *contents; /* used to build image */ |
| 69 | int pc; |
| 70 | int relocs; /* reloc count, valid end of pass 1 */ |
| 71 | int donerel; /* have relocs been translated */ |
| 72 | }; |
| 73 | |
| 74 | typedef struct versados_data_struct |
| 75 | { |
| 76 | int es_done; /* count of symbol index, starts at ES_BASE */ |
| 77 | asymbol *symbols; /* pointer to local symbols */ |
| 78 | char *strings; /* strings of all the above */ |
| 79 | int stringlen; /* len of string table (valid end of pass1) */ |
| 80 | int nsecsyms; /* number of sections */ |
| 81 | |
| 82 | int ndefs; /* number of exported symbols (they dont get esdids) */ |
| 83 | int nrefs; /* number of imported symbols (valid end of pass1) */ |
| 84 | |
| 85 | int ref_idx; /* current processed value of the above */ |
| 86 | int def_idx; |
| 87 | |
| 88 | int pass_2_done; |
| 89 | |
| 90 | struct esdid e[16]; /* per section info */ |
| 91 | int alert; /* to see if we're trampling */ |
| 92 | asymbol *rest[256 - 16]; /* per symbol info */ |
| 93 | |
| 94 | } |
| 95 | tdata_type; |
| 96 | |
| 97 | #define VDATA(abfd) (abfd->tdata.versados_data) |
| 98 | #define EDATA(abfd, n) (abfd->tdata.versados_data->e[n]) |
| 99 | #define RDATA(abfd, n) (abfd->tdata.versados_data->rest[n]) |
| 100 | |
| 101 | struct ext_otr |
| 102 | { |
| 103 | unsigned char size; |
| 104 | char type; |
| 105 | unsigned char map[4]; |
| 106 | unsigned char esdid; |
| 107 | unsigned char data[200]; |
| 108 | }; |
| 109 | |
| 110 | struct ext_vheader |
| 111 | { |
| 112 | unsigned char size; |
| 113 | char type; /* record type */ |
| 114 | char name[10]; /* module name */ |
| 115 | char rev; /* module rev number */ |
| 116 | char lang; |
| 117 | char vol[4]; |
| 118 | char user[2]; |
| 119 | char cat[8]; |
| 120 | char fname[8]; |
| 121 | char ext[2]; |
| 122 | char time[3]; |
| 123 | char date[3]; |
| 124 | char rest[211]; |
| 125 | }; |
| 126 | |
| 127 | struct ext_esd |
| 128 | { |
| 129 | unsigned char size; |
| 130 | char type; |
| 131 | unsigned char esd_entries[1]; |
| 132 | }; |
| 133 | #define ESD_ABS 0 |
| 134 | #define ESD_COMMON 1 |
| 135 | #define ESD_STD_REL_SEC 2 |
| 136 | #define ESD_SHRT_REL_SEC 3 |
| 137 | #define ESD_XDEF_IN_SEC 4 |
| 138 | #define ESD_XREF_SYM 7 |
| 139 | #define ESD_XREF_SEC 6 |
| 140 | #define ESD_XDEF_IN_ABS 5 |
| 141 | union ext_any |
| 142 | { |
| 143 | unsigned char size; |
| 144 | struct ext_vheader header; |
| 145 | struct ext_esd esd; |
| 146 | struct ext_otr otr; |
| 147 | }; |
| 148 | |
| 149 | /* Initialize by filling in the hex conversion array. */ |
| 150 | |
| 151 | |
| 152 | |
| 153 | |
| 154 | |
| 155 | /* Set up the tdata information. */ |
| 156 | |
| 157 | static boolean |
| 158 | versados_mkobject (abfd) |
| 159 | bfd *abfd; |
| 160 | { |
| 161 | if (abfd->tdata.versados_data == NULL) |
| 162 | { |
| 163 | tdata_type *tdata = (tdata_type *) bfd_alloc (abfd, sizeof (tdata_type)); |
| 164 | if (tdata == NULL) |
| 165 | return false; |
| 166 | abfd->tdata.versados_data = tdata; |
| 167 | tdata->symbols = NULL; |
| 168 | VDATA (abfd)->alert = 0x12345678; |
| 169 | } |
| 170 | |
| 171 | bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0); |
| 172 | return true; |
| 173 | } |
| 174 | |
| 175 | |
| 176 | /* Report a problem in an S record file. FIXME: This probably should |
| 177 | not call fprintf, but we really do need some mechanism for printing |
| 178 | error messages. */ |
| 179 | |
| 180 | |
| 181 | |
| 182 | static asymbol * |
| 183 | versados_new_symbol (abfd, snum, name, val, sec) |
| 184 | bfd *abfd; |
| 185 | int snum; |
| 186 | const char *name; |
| 187 | bfd_vma val; |
| 188 | asection *sec; |
| 189 | { |
| 190 | asymbol *n = VDATA (abfd)->symbols + snum; |
| 191 | n->name = name; |
| 192 | n->value = val; |
| 193 | n->section = sec; |
| 194 | n->the_bfd = abfd; |
| 195 | n->flags = 0; |
| 196 | return n; |
| 197 | } |
| 198 | |
| 199 | |
| 200 | static int |
| 201 | get_record (abfd, ptr) |
| 202 | bfd *abfd; |
| 203 | union ext_any *ptr; |
| 204 | { |
| 205 | bfd_read (&ptr->size, 1, 1, abfd); |
| 206 | if (bfd_read ((char *) ptr + 1, 1, ptr->size, abfd) != ptr->size) |
| 207 | return 0; |
| 208 | return 1; |
| 209 | } |
| 210 | |
| 211 | int |
| 212 | get_4 (pp) |
| 213 | unsigned char **pp; |
| 214 | { |
| 215 | unsigned char *p = *pp; |
| 216 | *pp += 4; |
| 217 | return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3] << 0); |
| 218 | } |
| 219 | |
| 220 | void |
| 221 | get_10 (pp, name) |
| 222 | unsigned char **pp; |
| 223 | char *name; |
| 224 | { |
| 225 | char *p = (char *) *pp; |
| 226 | int len = 10; |
| 227 | *pp += len; |
| 228 | while (*p != ' ' |
| 229 | && len) |
| 230 | { |
| 231 | *name++ = *p++; |
| 232 | len--; |
| 233 | } |
| 234 | *name = 0; |
| 235 | } |
| 236 | |
| 237 | static char * |
| 238 | new_symbol_string (abfd, name) |
| 239 | bfd *abfd; |
| 240 | char *name; |
| 241 | { |
| 242 | char *n = VDATA (abfd)->strings; |
| 243 | strcpy (VDATA (abfd)->strings, name); |
| 244 | VDATA (abfd)->strings += strlen (VDATA (abfd)->strings) + 1; |
| 245 | return n; |
| 246 | } |
| 247 | |
| 248 | |
| 249 | static void |
| 250 | process_esd (abfd, esd, pass) |
| 251 | bfd *abfd; |
| 252 | struct ext_esd *esd; |
| 253 | int pass; |
| 254 | { |
| 255 | /* Read through the ext def for the est entries */ |
| 256 | int togo = esd->size - 2; |
| 257 | bfd_vma size; |
| 258 | bfd_vma start; |
| 259 | asection *sec; |
| 260 | char name[11]; |
| 261 | unsigned char *ptr = esd->esd_entries; |
| 262 | unsigned char *end = ptr + togo; |
| 263 | while (ptr < end) |
| 264 | { |
| 265 | int scn = *ptr & 0xf; |
| 266 | int typ = (*ptr >> 4) & 0xf; |
| 267 | |
| 268 | /* Declare this section */ |
| 269 | sprintf (name, "%d", scn); |
| 270 | sec = bfd_make_section_old_way (abfd, strdup (name)); |
| 271 | sec->target_index = scn; |
| 272 | EDATA (abfd, scn).section = sec; |
| 273 | ptr++; |
| 274 | switch (typ) |
| 275 | { |
| 276 | default: |
| 277 | abort (); |
| 278 | case ESD_XREF_SEC: |
| 279 | case ESD_XREF_SYM: |
| 280 | { |
| 281 | int snum = VDATA (abfd)->ref_idx++; |
| 282 | get_10 (&ptr, name); |
| 283 | if (pass == 1) |
| 284 | { |
| 285 | VDATA (abfd)->stringlen += strlen (name) + 1; |
| 286 | } |
| 287 | else |
| 288 | { |
| 289 | int esidx; |
| 290 | asymbol *s; |
| 291 | char *n = new_symbol_string (abfd, name); |
| 292 | s = versados_new_symbol (abfd, snum, n, 0, |
| 293 | &bfd_und_section, scn); |
| 294 | esidx = VDATA (abfd)->es_done++; |
| 295 | RDATA (abfd, esidx - ES_BASE) = s; |
| 296 | } |
| 297 | } |
| 298 | break; |
| 299 | |
| 300 | |
| 301 | case ESD_ABS: |
| 302 | size = get_4 (&ptr); |
| 303 | start = get_4 (&ptr); |
| 304 | break; |
| 305 | case ESD_STD_REL_SEC: |
| 306 | case ESD_SHRT_REL_SEC: |
| 307 | { |
| 308 | sec->_raw_size = get_4 (&ptr); |
| 309 | sec->flags |= SEC_ALLOC; |
| 310 | } |
| 311 | break; |
| 312 | case ESD_XDEF_IN_ABS: |
| 313 | sec = (asection *) & bfd_abs_section; |
| 314 | case ESD_XDEF_IN_SEC: |
| 315 | { |
| 316 | int snum = VDATA (abfd)->def_idx++; |
| 317 | long val; |
| 318 | get_10 (&ptr, name); |
| 319 | val = get_4 (&ptr); |
| 320 | if (pass == 1) |
| 321 | { |
| 322 | /* Just remember the symbol */ |
| 323 | VDATA (abfd)->stringlen += strlen (name) + 1; |
| 324 | } |
| 325 | else |
| 326 | { |
| 327 | asymbol *s; |
| 328 | char *n = new_symbol_string (abfd, name); |
| 329 | s = versados_new_symbol (abfd, snum + VDATA (abfd)->nrefs, n, val, sec, scn); |
| 330 | s->flags |= BSF_GLOBAL; |
| 331 | } |
| 332 | } |
| 333 | break; |
| 334 | } |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | #define R_RELWORD 1 |
| 339 | #define R_RELLONG 2 |
| 340 | #define R_RELWORD_NEG 3 |
| 341 | #define R_RELLONG_NEG 4 |
| 342 | |
| 343 | reloc_howto_type versados_howto_table[] = |
| 344 | { |
| 345 | HOWTO (R_RELWORD, 0, 1, 16, false, |
| 346 | 0, complain_overflow_dont, 0, |
| 347 | "+v16", true, 0x0000ffff, 0x0000ffff, false), |
| 348 | HOWTO (R_RELLONG, 0, 2, 32, false, |
| 349 | 0, complain_overflow_dont, 0, |
| 350 | "+v32", true, 0xffffffff, 0xffffffff, false), |
| 351 | |
| 352 | HOWTO (R_RELWORD_NEG, 0, -1, 16, false, |
| 353 | 0, complain_overflow_dont, 0, |
| 354 | "-v16", true, 0x0000ffff, 0x0000ffff, false), |
| 355 | HOWTO (R_RELLONG_NEG, 0, -2, 32, false, |
| 356 | 0, complain_overflow_dont, 0, |
| 357 | "-v32", true, 0xffffffff, 0xffffffff, false), |
| 358 | }; |
| 359 | |
| 360 | |
| 361 | static int |
| 362 | get_offset (len, ptr) |
| 363 | int len; |
| 364 | unsigned char *ptr; |
| 365 | { |
| 366 | int val = 0; |
| 367 | if (len) |
| 368 | { |
| 369 | int i; |
| 370 | val = *ptr++; |
| 371 | if (val & 0x80) |
| 372 | val |= ~0xff; |
| 373 | for (i = 1; i < len; i++) |
| 374 | val = (val << 8) | *ptr++; |
| 375 | } |
| 376 | |
| 377 | return val; |
| 378 | } |
| 379 | |
| 380 | static void |
| 381 | process_otr (abfd, otr, pass) |
| 382 | bfd *abfd; |
| 383 | struct ext_otr *otr; |
| 384 | int pass; |
| 385 | { |
| 386 | unsigned long shift; |
| 387 | unsigned char *srcp = otr->data; |
| 388 | unsigned char *endp = (unsigned char *) otr + otr->size; |
| 389 | unsigned int bits = (otr->map[0] << 24) |
| 390 | | (otr->map[1] << 16) |
| 391 | | (otr->map[2] << 8) |
| 392 | | (otr->map[3] << 0); |
| 393 | |
| 394 | struct esdid *esdid = &EDATA (abfd, otr->esdid - 1); |
| 395 | unsigned char *contents = esdid->contents; |
| 396 | int need_contents = 0; |
| 397 | unsigned int dst_idx = esdid->pc; |
| 398 | |
| 399 | for (shift = (1 << 31); shift && srcp < endp; shift >>= 1) |
| 400 | { |
| 401 | if (bits & shift) |
| 402 | { |
| 403 | int flag = *srcp++; |
| 404 | int esdids = (flag >> 5) & 0x7; |
| 405 | int sizeinwords = ((flag >> 3) & 1) ? 2 : 1; |
| 406 | int offsetlen = flag & 0x7; |
| 407 | int j; |
| 408 | |
| 409 | |
| 410 | if (esdids == 0) |
| 411 | { |
| 412 | /* A zero esdid means the new pc is the offset given */ |
| 413 | dst_idx += get_offset (offsetlen, srcp); |
| 414 | srcp += offsetlen; |
| 415 | } |
| 416 | else |
| 417 | { |
| 418 | int val = get_offset (offsetlen, srcp + esdids); |
| 419 | if (pass == 1) |
| 420 | need_contents = 1; |
| 421 | else |
| 422 | for (j = 0; j < sizeinwords * 2; j++) |
| 423 | { |
| 424 | contents[dst_idx + (sizeinwords * 2) - j - 1] = val; |
| 425 | val >>= 8; |
| 426 | } |
| 427 | |
| 428 | for (j = 0; j < esdids; j++) |
| 429 | { |
| 430 | int esdid = *srcp++; |
| 431 | |
| 432 | if (esdid) |
| 433 | { |
| 434 | int rn = EDATA (abfd, otr->esdid - 1).relocs++; |
| 435 | if (pass == 1) |
| 436 | { |
| 437 | /* this is the first pass over the data, |
| 438 | just remember that we need a reloc */ |
| 439 | } |
| 440 | else |
| 441 | { |
| 442 | arelent *n = |
| 443 | EDATA (abfd, otr->esdid - 1).section->relocation + rn; |
| 444 | n->address = dst_idx; |
| 445 | |
| 446 | n->sym_ptr_ptr = (asymbol **) esdid; |
| 447 | n->addend = 0; |
| 448 | n->howto = versados_howto_table + ((j & 1) * 2) + (sizeinwords - 1); |
| 449 | } |
| 450 | } |
| 451 | } |
| 452 | srcp += offsetlen; |
| 453 | dst_idx += sizeinwords * 2; |
| 454 | } |
| 455 | } |
| 456 | else |
| 457 | { |
| 458 | need_contents = 1; |
| 459 | if (dst_idx < esdid->section->_raw_size) |
| 460 | if (pass == 2) |
| 461 | { |
| 462 | /* absolute code, comes in 16 bit lumps */ |
| 463 | contents[dst_idx] = srcp[0]; |
| 464 | contents[dst_idx + 1] = srcp[1]; |
| 465 | } |
| 466 | dst_idx += 2; |
| 467 | srcp += 2; |
| 468 | } |
| 469 | } |
| 470 | EDATA (abfd, otr->esdid - 1).pc = dst_idx; |
| 471 | |
| 472 | if (!contents && need_contents) |
| 473 | esdid->contents = (unsigned char *) bfd_alloc (abfd, esdid->section->_raw_size); |
| 474 | |
| 475 | |
| 476 | } |
| 477 | |
| 478 | static boolean |
| 479 | versados_scan (abfd) |
| 480 | bfd *abfd; |
| 481 | { |
| 482 | int loop = 1; |
| 483 | int i; |
| 484 | int j; |
| 485 | int nsecs = 0; |
| 486 | |
| 487 | VDATA (abfd)->nrefs = 0; |
| 488 | VDATA (abfd)->ndefs = 0; |
| 489 | VDATA (abfd)->ref_idx = 0; |
| 490 | VDATA (abfd)->def_idx = 0; |
| 491 | |
| 492 | while (loop) |
| 493 | { |
| 494 | union ext_any any; |
| 495 | if (!get_record (abfd, &any)) |
| 496 | return true; |
| 497 | switch (any.header.type) |
| 498 | { |
| 499 | case VHEADER: |
| 500 | break; |
| 501 | case VEND: |
| 502 | loop = 0; |
| 503 | break; |
| 504 | case VESTDEF: |
| 505 | process_esd (abfd, &any.esd, 1); |
| 506 | break; |
| 507 | case VOTR: |
| 508 | process_otr (abfd, &any.otr, 1); |
| 509 | break; |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | /* Now allocate space for the relocs and sections */ |
| 514 | |
| 515 | VDATA (abfd)->nrefs = VDATA (abfd)->ref_idx; |
| 516 | VDATA (abfd)->ndefs = VDATA (abfd)->def_idx; |
| 517 | VDATA (abfd)->ref_idx = 0; |
| 518 | VDATA (abfd)->def_idx = 0; |
| 519 | |
| 520 | abfd->symcount = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs; |
| 521 | |
| 522 | for (i = 0; i < 16; i++) |
| 523 | { |
| 524 | struct esdid *esdid = &EDATA (abfd, i); |
| 525 | if (esdid->section) |
| 526 | { |
| 527 | esdid->section->relocation |
| 528 | = (arelent *) bfd_alloc (abfd, sizeof (arelent) * esdid->relocs); |
| 529 | |
| 530 | esdid->pc = 0; |
| 531 | |
| 532 | if (esdid->contents) |
| 533 | esdid->section->flags |= SEC_HAS_CONTENTS | SEC_LOAD; |
| 534 | |
| 535 | esdid->section->reloc_count = esdid->relocs; |
| 536 | if (esdid->relocs) |
| 537 | esdid->section->flags |= SEC_RELOC; |
| 538 | |
| 539 | esdid->relocs = 0; |
| 540 | |
| 541 | /* Add an entry into the symbol table for it */ |
| 542 | nsecs++; |
| 543 | VDATA (abfd)->stringlen += strlen (esdid->section->name) + 1; |
| 544 | } |
| 545 | } |
| 546 | |
| 547 | abfd->symcount += nsecs; |
| 548 | |
| 549 | VDATA (abfd)->symbols = (asymbol *) bfd_alloc (abfd, |
| 550 | sizeof (asymbol) * (abfd->symcount)); |
| 551 | |
| 552 | VDATA (abfd)->strings = bfd_alloc (abfd, VDATA (abfd)->stringlen); |
| 553 | |
| 554 | |
| 555 | /* Actually fill in the section symbols, |
| 556 | we stick them at the end of the table */ |
| 557 | |
| 558 | for (j = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs, i = 0; i < 16; i++) |
| 559 | { |
| 560 | struct esdid *esdid = &EDATA (abfd, i); |
| 561 | asection *sec = esdid->section; |
| 562 | if (sec) |
| 563 | { |
| 564 | asymbol *s = VDATA (abfd)->symbols + j; |
| 565 | s->name = new_symbol_string (abfd, sec->name); |
| 566 | s->section = sec; |
| 567 | s->flags = BSF_LOCAL; |
| 568 | s->value = 0; |
| 569 | s->the_bfd = abfd; |
| 570 | j++; |
| 571 | } |
| 572 | } |
| 573 | if (abfd->symcount) |
| 574 | abfd->flags |= HAS_SYMS; |
| 575 | |
| 576 | /* Set this to nsecs - since we've already planted the section |
| 577 | symbols */ |
| 578 | VDATA (abfd)->nsecsyms = nsecs; |
| 579 | |
| 580 | VDATA (abfd)->ref_idx = 0; |
| 581 | |
| 582 | return 1; |
| 583 | } |
| 584 | |
| 585 | |
| 586 | |
| 587 | /* Check whether an existing file is a versados file. */ |
| 588 | |
| 589 | static const bfd_target * |
| 590 | versados_object_p (abfd) |
| 591 | bfd *abfd; |
| 592 | { |
| 593 | struct ext_vheader ext; |
| 594 | unsigned char len; |
| 595 | |
| 596 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET)) |
| 597 | return NULL; |
| 598 | |
| 599 | |
| 600 | bfd_read (&len, 1, 1, abfd); |
| 601 | if (bfd_read (&ext.type, 1, len, abfd) != len |
| 602 | || ext.type != '1') |
| 603 | { |
| 604 | bfd_set_error (bfd_error_wrong_format); |
| 605 | return NULL; |
| 606 | } |
| 607 | |
| 608 | /* ok, looks like a record, build the tdata and read |
| 609 | in.. */ |
| 610 | |
| 611 | if (!versados_mkobject (abfd) |
| 612 | || !versados_scan (abfd)) |
| 613 | return NULL; |
| 614 | |
| 615 | return abfd->xvec; |
| 616 | } |
| 617 | |
| 618 | |
| 619 | static boolean |
| 620 | versados_pass_2 (abfd) |
| 621 | bfd *abfd; |
| 622 | { |
| 623 | union ext_any any; |
| 624 | |
| 625 | if (VDATA (abfd)->pass_2_done) |
| 626 | return 1; |
| 627 | |
| 628 | if (bfd_seek (abfd, 0, SEEK_SET) != 0) |
| 629 | return 0; |
| 630 | |
| 631 | VDATA (abfd)->es_done = ES_BASE; |
| 632 | |
| 633 | |
| 634 | /* read records till we get to where we want to be */ |
| 635 | |
| 636 | while (1) |
| 637 | { |
| 638 | get_record (abfd, &any); |
| 639 | switch (any.header.type) |
| 640 | { |
| 641 | case VEND: |
| 642 | VDATA (abfd)->pass_2_done = 1; |
| 643 | return 1; |
| 644 | case VESTDEF: |
| 645 | process_esd (abfd, &any.esd, 2); |
| 646 | break; |
| 647 | case VOTR: |
| 648 | process_otr (abfd, &any.otr, 2); |
| 649 | break; |
| 650 | } |
| 651 | } |
| 652 | } |
| 653 | |
| 654 | static boolean |
| 655 | versados_get_section_contents (abfd, section, location, offset, count) |
| 656 | bfd *abfd; |
| 657 | asection *section; |
| 658 | PTR location; |
| 659 | file_ptr offset; |
| 660 | bfd_size_type count; |
| 661 | { |
| 662 | if (!versados_pass_2 (abfd)) |
| 663 | return false; |
| 664 | |
| 665 | memcpy (location, |
| 666 | EDATA (abfd, section->target_index).contents + offset, |
| 667 | (size_t) count); |
| 668 | |
| 669 | return true; |
| 670 | } |
| 671 | |
| 672 | #define versados_get_section_contents_in_window \ |
| 673 | _bfd_generic_get_section_contents_in_window |
| 674 | |
| 675 | static boolean |
| 676 | versados_set_section_contents (abfd, section, location, offset, bytes_to_do) |
| 677 | bfd *abfd; |
| 678 | sec_ptr section; |
| 679 | PTR location; |
| 680 | file_ptr offset; |
| 681 | bfd_size_type bytes_to_do; |
| 682 | { |
| 683 | return false; |
| 684 | } |
| 685 | |
| 686 | |
| 687 | /*ARGSUSED */ |
| 688 | static int |
| 689 | versados_sizeof_headers (abfd, exec) |
| 690 | bfd *abfd; |
| 691 | boolean exec; |
| 692 | { |
| 693 | return 0; |
| 694 | } |
| 695 | |
| 696 | static asymbol * |
| 697 | versados_make_empty_symbol (abfd) |
| 698 | bfd *abfd; |
| 699 | { |
| 700 | asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol)); |
| 701 | if (new) |
| 702 | new->the_bfd = abfd; |
| 703 | return new; |
| 704 | } |
| 705 | |
| 706 | /* Return the amount of memory needed to read the symbol table. */ |
| 707 | |
| 708 | static long |
| 709 | versados_get_symtab_upper_bound (abfd) |
| 710 | bfd *abfd; |
| 711 | { |
| 712 | return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *); |
| 713 | } |
| 714 | |
| 715 | /* Return the symbol table. */ |
| 716 | |
| 717 | static long |
| 718 | versados_get_symtab (abfd, alocation) |
| 719 | bfd *abfd; |
| 720 | asymbol **alocation; |
| 721 | { |
| 722 | unsigned int symcount = bfd_get_symcount (abfd); |
| 723 | unsigned int i; |
| 724 | asymbol *s; |
| 725 | |
| 726 | versados_pass_2 (abfd); |
| 727 | |
| 728 | for (i = 0, s = VDATA (abfd)->symbols; |
| 729 | i < symcount; |
| 730 | s++, i++) |
| 731 | { |
| 732 | *alocation++ = s; |
| 733 | } |
| 734 | |
| 735 | *alocation = NULL; |
| 736 | |
| 737 | return symcount; |
| 738 | } |
| 739 | |
| 740 | /*ARGSUSED */ |
| 741 | void |
| 742 | versados_get_symbol_info (ignore_abfd, symbol, ret) |
| 743 | bfd *ignore_abfd; |
| 744 | asymbol *symbol; |
| 745 | symbol_info *ret; |
| 746 | { |
| 747 | bfd_symbol_info (symbol, ret); |
| 748 | } |
| 749 | |
| 750 | /*ARGSUSED */ |
| 751 | void |
| 752 | versados_print_symbol (ignore_abfd, afile, symbol, how) |
| 753 | bfd *ignore_abfd; |
| 754 | PTR afile; |
| 755 | asymbol *symbol; |
| 756 | bfd_print_symbol_type how; |
| 757 | { |
| 758 | FILE *file = (FILE *) afile; |
| 759 | switch (how) |
| 760 | { |
| 761 | case bfd_print_symbol_name: |
| 762 | fprintf (file, "%s", symbol->name); |
| 763 | break; |
| 764 | default: |
| 765 | bfd_print_symbol_vandf ((PTR) file, symbol); |
| 766 | fprintf (file, " %-5s %s", |
| 767 | symbol->section->name, |
| 768 | symbol->name); |
| 769 | |
| 770 | } |
| 771 | } |
| 772 | |
| 773 | long |
| 774 | versados_get_reloc_upper_bound (abfd, asect) |
| 775 | bfd *abfd; |
| 776 | sec_ptr asect; |
| 777 | { |
| 778 | return (asect->reloc_count + 1) * sizeof (arelent *); |
| 779 | } |
| 780 | |
| 781 | |
| 782 | long |
| 783 | versados_canonicalize_reloc (abfd, section, relptr, symbols) |
| 784 | bfd *abfd; |
| 785 | sec_ptr section; |
| 786 | arelent **relptr; |
| 787 | asymbol **symbols; |
| 788 | { |
| 789 | unsigned int count; |
| 790 | arelent *src; |
| 791 | |
| 792 | versados_pass_2 (abfd); |
| 793 | src = section->relocation; |
| 794 | if (!EDATA (abfd, section->target_index).donerel) |
| 795 | { |
| 796 | EDATA (abfd, section->target_index).donerel = 1; |
| 797 | /* translate from indexes to symptr ptrs */ |
| 798 | for (count = 0; count < section->reloc_count; count++) |
| 799 | { |
| 800 | int esdid = (int) src[count].sym_ptr_ptr; |
| 801 | |
| 802 | if (esdid == 0) |
| 803 | { |
| 804 | src[count].sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; |
| 805 | } |
| 806 | else if (esdid < ES_BASE) /* Section relative thing */ |
| 807 | { |
| 808 | struct esdid *e = &EDATA (abfd, esdid - 1); |
| 809 | if (!section) |
| 810 | { |
| 811 | /** relocation relative to section which was |
| 812 | never declared ! */ |
| 813 | } |
| 814 | src[count].sym_ptr_ptr = e->section->symbol_ptr_ptr; |
| 815 | } |
| 816 | else |
| 817 | { |
| 818 | src[count].sym_ptr_ptr = symbols + esdid - ES_BASE; |
| 819 | } |
| 820 | |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | for (count = 0; count < section->reloc_count; count++) |
| 825 | { |
| 826 | *relptr++ = src++; |
| 827 | } |
| 828 | *relptr = 0; |
| 829 | return section->reloc_count; |
| 830 | } |
| 831 | |
| 832 | #define versados_close_and_cleanup _bfd_generic_close_and_cleanup |
| 833 | #define versados_bfd_free_cached_info _bfd_generic_bfd_free_cached_info |
| 834 | #define versados_new_section_hook _bfd_generic_new_section_hook |
| 835 | |
| 836 | #define versados_bfd_is_local_label bfd_generic_is_local_label |
| 837 | #define versados_get_lineno _bfd_nosymbols_get_lineno |
| 838 | #define versados_find_nearest_line _bfd_nosymbols_find_nearest_line |
| 839 | #define versados_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol |
| 840 | #define versados_read_minisymbols _bfd_generic_read_minisymbols |
| 841 | #define versados_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol |
| 842 | |
| 843 | #define versados_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
| 844 | |
| 845 | #define versados_set_arch_mach bfd_default_set_arch_mach |
| 846 | |
| 847 | #define versados_bfd_get_relocated_section_contents \ |
| 848 | bfd_generic_get_relocated_section_contents |
| 849 | #define versados_bfd_relax_section bfd_generic_relax_section |
| 850 | #define versados_bfd_link_hash_table_create _bfd_generic_link_hash_table_create |
| 851 | #define versados_bfd_link_add_symbols _bfd_generic_link_add_symbols |
| 852 | #define versados_bfd_final_link _bfd_generic_final_link |
| 853 | #define versados_bfd_link_split_section _bfd_generic_link_split_section |
| 854 | |
| 855 | const bfd_target versados_vec = |
| 856 | { |
| 857 | "versados", /* name */ |
| 858 | bfd_target_versados_flavour, |
| 859 | true, /* target byte order */ |
| 860 | true, /* target headers byte order */ |
| 861 | (HAS_RELOC | EXEC_P | /* object flags */ |
| 862 | HAS_LINENO | HAS_DEBUG | |
| 863 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), |
| 864 | (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS |
| 865 | | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 866 | 0, /* leading underscore */ |
| 867 | ' ', /* ar_pad_char */ |
| 868 | 16, /* ar_max_namelen */ |
| 869 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 870 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 871 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ |
| 872 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 873 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 874 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ |
| 875 | |
| 876 | { |
| 877 | _bfd_dummy_target, |
| 878 | versados_object_p, /* bfd_check_format */ |
| 879 | _bfd_dummy_target, |
| 880 | _bfd_dummy_target, |
| 881 | }, |
| 882 | { |
| 883 | bfd_false, |
| 884 | versados_mkobject, |
| 885 | _bfd_generic_mkarchive, |
| 886 | bfd_false, |
| 887 | }, |
| 888 | { /* bfd_write_contents */ |
| 889 | bfd_false, |
| 890 | bfd_false, |
| 891 | _bfd_write_archive_contents, |
| 892 | bfd_false, |
| 893 | }, |
| 894 | |
| 895 | BFD_JUMP_TABLE_GENERIC (versados), |
| 896 | BFD_JUMP_TABLE_COPY (_bfd_generic), |
| 897 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| 898 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), |
| 899 | BFD_JUMP_TABLE_SYMBOLS (versados), |
| 900 | BFD_JUMP_TABLE_RELOCS (versados), |
| 901 | BFD_JUMP_TABLE_WRITE (versados), |
| 902 | BFD_JUMP_TABLE_LINK (versados), |
| 903 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 904 | |
| 905 | (PTR) 0 |
| 906 | }; |