1 /* vms.c -- BFD back-end for VAX (openVMS/VAX) and 2 EVAX (openVMS/Alpha) files. 3 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 4 2006 Free Software Foundation, Inc. 5 6 Written by Klaus K"ampf (kkaempf@rmi.de) 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 2 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, MA 02110-1301, USA. */ 21 22 #include "bfd.h" 23 #include "sysdep.h" 24 #include "bfdlink.h" 25 #include "libbfd.h" 26 27 #include "vms.h" 28 29 #define vms_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 30 #define vms_make_empty_symbol _bfd_generic_make_empty_symbol 31 #define vms_bfd_link_just_syms _bfd_generic_link_just_syms 32 #define vms_bfd_is_group_section bfd_generic_is_group_section 33 #define vms_bfd_discard_group bfd_generic_discard_group 34 #define vms_section_already_linked _bfd_generic_section_already_linked 35 #define vms_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data 36 #define vms_get_synthetic_symtab _bfd_nodynamic_get_synthetic_symtab 37 38 static unsigned int priv_section_count; 39 extern const bfd_target vms_vax_vec; 40 extern const bfd_target vms_alpha_vec; 41 42 /* Initialize private data. */ 43 44 static bfd_boolean 45 vms_initialize (bfd * abfd) 46 { 47 int i; 48 bfd_size_type amt; 49 50 bfd_set_start_address (abfd, (bfd_vma) -1); 51 52 amt = sizeof (struct vms_private_data_struct); 53 abfd->tdata.any = bfd_alloc (abfd, amt); 54 if (abfd->tdata.any == NULL) 55 return FALSE; 56 57 #ifdef __ALPHA 58 PRIV (is_vax) = FALSE; 59 #else 60 PRIV (is_vax) = TRUE; 61 #endif 62 PRIV (vms_buf) = NULL; 63 PRIV (buf_size) = 0; 64 PRIV (rec_length) = 0; 65 PRIV (file_format) = FF_UNKNOWN; 66 PRIV (fixup_done) = FALSE; 67 PRIV (sections) = NULL; 68 69 amt = sizeof (struct stack_struct) * STACKSIZE; 70 PRIV (stack) = bfd_alloc (abfd, amt); 71 if (PRIV (stack) == NULL) 72 goto error_ret1; 73 PRIV (stackptr) = 0; 74 75 amt = sizeof (struct bfd_hash_table); 76 PRIV (vms_symbol_table) = bfd_alloc (abfd, amt); 77 if (PRIV (vms_symbol_table) == NULL) 78 goto error_ret1; 79 80 if (!bfd_hash_table_init (PRIV (vms_symbol_table), _bfd_vms_hash_newfunc, 81 sizeof (vms_symbol_entry))) 82 goto error_ret1; 83 84 amt = sizeof (struct location_struct) * LOCATION_SAVE_SIZE; 85 PRIV (location_stack) = bfd_alloc (abfd, amt); 86 if (PRIV (location_stack) == NULL) 87 goto error_ret2; 88 89 for (i = 0; i < VMS_SECTION_COUNT; i++) 90 PRIV (vms_section_table)[i] = NULL; 91 92 amt = MAX_OUTREC_SIZE; 93 PRIV (output_buf) = bfd_alloc (abfd, amt); 94 if (PRIV (output_buf) == NULL) 95 goto error_ret2; 96 97 PRIV (push_level) = 0; 98 PRIV (pushed_size) = 0; 99 PRIV (length_pos) = 2; 100 PRIV (output_size) = 0; 101 PRIV (output_alignment) = 1; 102 103 return TRUE; 104 105 error_ret2: 106 bfd_hash_table_free (PRIV (vms_symbol_table)); 107 error_ret1: 108 bfd_release (abfd, abfd->tdata.any); 109 abfd->tdata.any = NULL; 110 return FALSE; 111 } 112 113 /* Fill symbol->section with section ptr 114 symbol->section is filled with the section index for defined symbols 115 during reading the GSD/EGSD section. But we need the pointer to the 116 bfd section later. 117 118 It has the correct value for referenced (undefined section) symbols 119 120 called from bfd_hash_traverse in vms_fixup_sections. */ 121 122 static bfd_boolean 123 fill_section_ptr (struct bfd_hash_entry * entry, void * sections) 124 { 125 asection *sec; 126 asymbol *sym; 127 128 sym = ((vms_symbol_entry *) entry)->symbol; 129 sec = sym->section; 130 131 #if VMS_DEBUG 132 vms_debug (6, "fill_section_ptr: sym %p, sec %p\n", sym, sec); 133 #endif 134 135 /* Fill forward references (these contain section number, not section ptr). */ 136 if ((unsigned int) (size_t) sec < priv_section_count) 137 sec = ((vms_symbol_entry *) entry)->symbol->section = 138 ((asection **) sections)[(unsigned int) (size_t) sec]; 139 140 if (strcmp (sym->name, sec->name) == 0) 141 sym->flags |= BSF_SECTION_SYM; 142 143 return TRUE; 144 } 145 146 /* Fixup sections 147 set up all pointers and arrays, counters and sizes are fixed now 148 149 we build a private sections vector for easy access since sections 150 are always referenced by an index number. 151 152 alloc PRIV(sections) according to abfd->section_count 153 copy abfd->sections to PRIV(sections). */ 154 155 static bfd_boolean 156 vms_fixup_sections (bfd * abfd) 157 { 158 if (PRIV (fixup_done)) 159 return TRUE; 160 161 /* Traverse symbol table and fill in all section pointers. */ 162 163 /* Can't provide section count as argument to fill_section_ptr(). */ 164 priv_section_count = PRIV (section_count); 165 bfd_hash_traverse (PRIV (vms_symbol_table), fill_section_ptr, (PRIV (sections))); 166 167 PRIV (fixup_done) = TRUE; 168 169 return TRUE; 170 } 171 172 /* Check the format for a file being read. 173 Return a (bfd_target *) if it's an object file or zero if not. */ 174 175 static const struct bfd_target * 176 vms_object_p (bfd * abfd) 177 { 178 int err = 0; 179 int prev_type; 180 const struct bfd_target *target_vector = NULL; 181 const bfd_arch_info_type *arch = NULL; 182 void * tdata_save = abfd->tdata.any; 183 bfd_vma saddr_save = bfd_get_start_address (abfd); 184 185 #if VMS_DEBUG 186 vms_debug (1, "vms_object_p (%p)\n", abfd); 187 #endif 188 189 if (!vms_initialize (abfd)) 190 goto error_ret; 191 192 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET)) 193 goto err_wrong_format; 194 195 prev_type = -1; 196 197 do 198 { 199 #if VMS_DEBUG 200 vms_debug (7, "reading at %08lx\n", bfd_tell (abfd)); 201 #endif 202 if (_bfd_vms_next_record (abfd) < 0) 203 { 204 #if VMS_DEBUG 205 vms_debug (2, "next_record failed\n"); 206 #endif 207 goto err_wrong_format; 208 } 209 210 if ((prev_type == EOBJ_S_C_EGSD) 211 && (PRIV (rec_type) != EOBJ_S_C_EGSD)) 212 { 213 if (! vms_fixup_sections (abfd)) 214 { 215 #if VMS_DEBUG 216 vms_debug (2, "vms_fixup_sections failed\n"); 217 #endif 218 goto err_wrong_format; 219 } 220 } 221 222 prev_type = PRIV (rec_type); 223 224 if (target_vector == NULL) 225 { 226 if (prev_type <= OBJ_S_C_MAXRECTYP) 227 target_vector = & vms_vax_vec; 228 else 229 target_vector = & vms_alpha_vec; 230 } 231 232 switch (prev_type) 233 { 234 case OBJ_S_C_HDR: 235 case EOBJ_S_C_EMH: 236 err = _bfd_vms_slurp_hdr (abfd, prev_type); 237 break; 238 case OBJ_S_C_EOM: 239 case OBJ_S_C_EOMW: 240 case EOBJ_S_C_EEOM: 241 err = _bfd_vms_slurp_eom (abfd, prev_type); 242 break; 243 case OBJ_S_C_GSD: 244 case EOBJ_S_C_EGSD: 245 err = _bfd_vms_slurp_gsd (abfd, prev_type); 246 break; 247 case OBJ_S_C_TIR: 248 case EOBJ_S_C_ETIR: 249 err = _bfd_vms_slurp_tir (abfd, prev_type); 250 break; 251 case OBJ_S_C_DBG: 252 case EOBJ_S_C_EDBG: 253 err = _bfd_vms_slurp_dbg (abfd, prev_type); 254 break; 255 case OBJ_S_C_TBT: 256 case EOBJ_S_C_ETBT: 257 err = _bfd_vms_slurp_tbt (abfd, prev_type); 258 break; 259 case OBJ_S_C_LNK: 260 err = _bfd_vms_slurp_lnk (abfd, prev_type); 261 break; 262 default: 263 err = -1; 264 } 265 if (err != 0) 266 { 267 #if VMS_DEBUG 268 vms_debug (2, "slurp type %d failed with %d\n", prev_type, err); 269 #endif 270 goto err_wrong_format; 271 } 272 } 273 while ((prev_type != EOBJ_S_C_EEOM) && (prev_type != OBJ_S_C_EOM) && (prev_type != OBJ_S_C_EOMW)); 274 275 if (target_vector == & vms_vax_vec) 276 { 277 if (! vms_fixup_sections (abfd)) 278 { 279 #if VMS_DEBUG 280 vms_debug (2, "vms_fixup_sections failed\n"); 281 #endif 282 goto err_wrong_format; 283 } 284 285 /* Set arch_info to vax. */ 286 287 arch = bfd_scan_arch ("vax"); 288 PRIV (is_vax) = TRUE; 289 #if VMS_DEBUG 290 vms_debug (2, "arch is vax\n"); 291 #endif 292 } 293 else if (target_vector == & vms_alpha_vec) 294 { 295 /* Set arch_info to alpha. */ 296 297 arch = bfd_scan_arch ("alpha"); 298 PRIV (is_vax) = FALSE; 299 #if VMS_DEBUG 300 vms_debug (2, "arch is alpha\n"); 301 #endif 302 } 303 304 if (arch == NULL) 305 { 306 #if VMS_DEBUG 307 vms_debug (2, "arch not found\n"); 308 #endif 309 goto err_wrong_format; 310 } 311 abfd->arch_info = arch; 312 313 return target_vector; 314 315 err_wrong_format: 316 bfd_set_error (bfd_error_wrong_format); 317 error_ret: 318 if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL) 319 bfd_release (abfd, abfd->tdata.any); 320 abfd->tdata.any = tdata_save; 321 bfd_set_start_address (abfd, saddr_save); 322 return NULL; 323 } 324 325 /* Check the format for a file being read. 326 Return a (bfd_target *) if it's an archive file or zero. */ 327 328 static const struct bfd_target * 329 vms_archive_p (bfd * abfd ATTRIBUTE_UNUSED) 330 { 331 #if VMS_DEBUG 332 vms_debug (1, "vms_archive_p (%p)\n", abfd); 333 #endif 334 335 return NULL; 336 } 337 338 /* Set the format of a file being written. */ 339 340 static bfd_boolean 341 vms_mkobject (bfd * abfd) 342 { 343 #if VMS_DEBUG 344 vms_debug (1, "vms_mkobject (%p)\n", abfd); 345 #endif 346 347 if (!vms_initialize (abfd)) 348 return FALSE; 349 350 { 351 #ifdef __VAX 352 const bfd_arch_info_type *arch = bfd_scan_arch ("vax"); 353 #else 354 const bfd_arch_info_type *arch = bfd_scan_arch ("alpha"); 355 #endif 356 if (arch == NULL) 357 { 358 bfd_set_error (bfd_error_wrong_format); 359 return FALSE; 360 } 361 abfd->arch_info = arch; 362 } 363 364 return TRUE; 365 } 366 367 /* Write cached information into a file being written, at bfd_close. */ 368 369 static bfd_boolean 370 vms_write_object_contents (bfd * abfd) 371 { 372 #if VMS_DEBUG 373 vms_debug (1, "vms_write_object_contents (%p)\n", abfd); 374 #endif 375 376 if (abfd->section_count > 0) /* we have sections */ 377 { 378 if (PRIV (is_vax)) 379 { 380 if (_bfd_vms_write_hdr (abfd, OBJ_S_C_HDR) != 0) 381 return FALSE; 382 if (_bfd_vms_write_gsd (abfd, OBJ_S_C_GSD) != 0) 383 return FALSE; 384 if (_bfd_vms_write_tir (abfd, OBJ_S_C_TIR) != 0) 385 return FALSE; 386 if (_bfd_vms_write_tbt (abfd, OBJ_S_C_TBT) != 0) 387 return FALSE; 388 if (_bfd_vms_write_dbg (abfd, OBJ_S_C_DBG) != 0) 389 return FALSE; 390 if (abfd->section_count > 255) 391 { 392 if (_bfd_vms_write_eom (abfd, OBJ_S_C_EOMW) != 0) 393 return FALSE; 394 } 395 else 396 { 397 if (_bfd_vms_write_eom (abfd, OBJ_S_C_EOM) != 0) 398 return FALSE; 399 } 400 } 401 else 402 { 403 if (_bfd_vms_write_hdr (abfd, EOBJ_S_C_EMH) != 0) 404 return FALSE; 405 if (_bfd_vms_write_gsd (abfd, EOBJ_S_C_EGSD) != 0) 406 return FALSE; 407 if (_bfd_vms_write_tir (abfd, EOBJ_S_C_ETIR) != 0) 408 return FALSE; 409 if (_bfd_vms_write_tbt (abfd, EOBJ_S_C_ETBT) != 0) 410 return FALSE; 411 if (_bfd_vms_write_dbg (abfd, EOBJ_S_C_EDBG) != 0) 412 return FALSE; 413 if (_bfd_vms_write_eom (abfd, EOBJ_S_C_EEOM) != 0) 414 return FALSE; 415 } 416 } 417 return TRUE; 418 } 419 420 /* 4.1, generic. */ 421 422 /* Called when the BFD is being closed to do any necessary cleanup. */ 423 424 static bfd_boolean 425 vms_close_and_cleanup (bfd * abfd) 426 { 427 #if VMS_DEBUG 428 vms_debug (1, "vms_close_and_cleanup (%p)\n", abfd); 429 #endif 430 if (abfd == NULL) 431 return TRUE; 432 433 if (PRIV (vms_buf) != NULL) 434 free (PRIV (vms_buf)); 435 436 if (PRIV (sections) != NULL) 437 free (PRIV (sections)); 438 439 if (PRIV (vms_symbol_table)) 440 bfd_hash_table_free (PRIV (vms_symbol_table)); 441 442 bfd_release (abfd, abfd->tdata.any); 443 abfd->tdata.any = NULL; 444 445 return TRUE; 446 } 447 448 /* Ask the BFD to free all cached information. */ 449 450 static bfd_boolean 451 vms_bfd_free_cached_info (bfd * abfd ATTRIBUTE_UNUSED) 452 { 453 #if VMS_DEBUG 454 vms_debug (1, "vms_bfd_free_cached_info (%p)\n", abfd); 455 #endif 456 return TRUE; 457 } 458 459 /* Called when a new section is created. */ 460 461 static bfd_boolean 462 vms_new_section_hook (bfd * abfd, asection *section) 463 { 464 /* Count hasn't been incremented yet. */ 465 unsigned int section_count = abfd->section_count + 1; 466 467 #if VMS_DEBUG 468 vms_debug (1, "vms_new_section_hook (%p, [%d]%s), count %d\n", 469 abfd, section->index, section->name, section_count); 470 #endif 471 bfd_set_section_alignment (abfd, section, 4); 472 473 if (section_count > PRIV (section_count)) 474 { 475 bfd_size_type amt = section_count; 476 amt *= sizeof (asection *); 477 PRIV (sections) = bfd_realloc (PRIV (sections), amt); 478 if (PRIV (sections) == NULL) 479 return FALSE; 480 PRIV (section_count) = section_count; 481 } 482 #if VMS_DEBUG 483 vms_debug (6, "section_count: %d\n", PRIV (section_count)); 484 #endif 485 PRIV (sections)[section->index] = section; 486 #if VMS_DEBUG 487 vms_debug (7, "%d: %s\n", section->index, section->name); 488 #endif 489 490 return TRUE; 491 } 492 493 /* Read the contents of a section. 494 buf points to a buffer of buf_size bytes to be filled with 495 section data (starting at offset into section) */ 496 497 static bfd_boolean 498 vms_get_section_contents (bfd * abfd ATTRIBUTE_UNUSED, 499 asection *section ATTRIBUTE_UNUSED, 500 void * buf ATTRIBUTE_UNUSED, 501 file_ptr offset ATTRIBUTE_UNUSED, 502 bfd_size_type buf_size ATTRIBUTE_UNUSED) 503 { 504 #if VMS_DEBUG 505 vms_debug (1, "vms_get_section_contents (%p, %s, %p, off %ld, size %d)\n", 506 abfd, section->name, buf, offset, (int)buf_size); 507 #endif 508 509 /* Shouldn't be called, since all sections are IN_MEMORY. */ 510 return FALSE; 511 } 512 513 /* Read the contents of a section. 514 buf points to a buffer of buf_size bytes to be filled with 515 section data (starting at offset into section). */ 516 517 static bfd_boolean 518 vms_get_section_contents_in_window (bfd * abfd ATTRIBUTE_UNUSED, 519 asection *section ATTRIBUTE_UNUSED, 520 bfd_window *w ATTRIBUTE_UNUSED, 521 file_ptr offset ATTRIBUTE_UNUSED, 522 bfd_size_type count ATTRIBUTE_UNUSED) 523 { 524 #if VMS_DEBUG 525 vms_debug (1, "vms_get_section_contents_in_window (%p, %s, %p, off %ld, count %d)\n", 526 abfd, section->name, w, offset, (int)count); 527 #endif 528 529 /* Shouldn't be called, since all sections are IN_MEMORY. */ 530 return FALSE; 531 } 532 533 /* Part 4.2, copy private data. */ 534 535 /* Called to copy BFD general private data from one object file 536 to another. */ 537 538 static bfd_boolean 539 vms_bfd_copy_private_bfd_data (bfd *src ATTRIBUTE_UNUSED, 540 bfd *dest ATTRIBUTE_UNUSED) 541 { 542 #if VMS_DEBUG 543 vms_debug (1, "vms_bfd_copy_private_bfd_data (%p, %p)\n", src, dest); 544 #endif 545 return TRUE; 546 } 547 548 /* Merge private BFD information from the BFD @var{ibfd} to the 549 the output file BFD @var{obfd} when linking. Return <<TRUE>> 550 on success, <<FALSE>> on error. Possible error returns are: 551 552 o <<bfd_error_no_memory>> - 553 Not enough memory exists to create private data for @var{obfd}. */ 554 555 static bfd_boolean 556 vms_bfd_merge_private_bfd_data (bfd * ibfd ATTRIBUTE_UNUSED, 557 bfd * obfd ATTRIBUTE_UNUSED) 558 { 559 #if VMS_DEBUG 560 vms_debug (1,"vms_bfd_merge_private_bfd_data (%p, %p)\n", ibfd, obfd); 561 #endif 562 return TRUE; 563 } 564 565 /* Set private BFD flag information in the BFD @var{abfd}. 566 Return <<TRUE>> on success, <<FALSE>> on error. Possible error 567 returns are: 568 569 o <<bfd_error_no_memory>> - 570 Not enough memory exists to create private data for @var{obfd}. */ 571 572 static bfd_boolean 573 vms_bfd_set_private_flags (bfd * abfd ATTRIBUTE_UNUSED, 574 flagword flags ATTRIBUTE_UNUSED) 575 { 576 #if VMS_DEBUG 577 vms_debug (1,"vms_bfd_set_private_flags (%p, %lx)\n", abfd, (long)flags); 578 #endif 579 return TRUE; 580 } 581 582 /* Called to copy BFD private section data from one object file 583 to another. */ 584 585 static bfd_boolean 586 vms_bfd_copy_private_section_data (bfd *srcbfd ATTRIBUTE_UNUSED, 587 asection *srcsec ATTRIBUTE_UNUSED, 588 bfd *dstbfd ATTRIBUTE_UNUSED, 589 asection *dstsec ATTRIBUTE_UNUSED) 590 { 591 #if VMS_DEBUG 592 vms_debug (1, "vms_bfd_copy_private_section_data (%p, %s, %p, %s)\n", 593 srcbfd, srcsec->name, dstbfd, dstsec->name); 594 #endif 595 return TRUE; 596 } 597 598 /* Called to copy BFD private symbol data from one object file 599 to another. */ 600 601 static bfd_boolean 602 vms_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, 603 asymbol *isym ATTRIBUTE_UNUSED, 604 bfd *obfd ATTRIBUTE_UNUSED, 605 asymbol *osym ATTRIBUTE_UNUSED) 606 { 607 #if VMS_DEBUG 608 vms_debug (1, "vms_bfd_copy_private_symbol_data (%p, %s, %p, %s)\n", 609 ibfd, isym->name, obfd, osym->name); 610 #endif 611 return TRUE; 612 } 613 614 /* Part 4.3, core file. */ 615 616 /* Return a read-only string explaining which program was running 617 when it failed and produced the core file abfd. */ 618 619 static char * 620 vms_core_file_failing_command (bfd * abfd ATTRIBUTE_UNUSED) 621 { 622 #if VMS_DEBUG 623 vms_debug (1, "vms_core_file_failing_command (%p)\n", abfd); 624 #endif 625 return NULL; 626 } 627 628 /* Returns the signal number which caused the core dump which 629 generated the file the BFD abfd is attached to. */ 630 631 static int 632 vms_core_file_failing_signal (bfd * abfd ATTRIBUTE_UNUSED) 633 { 634 #if VMS_DEBUG 635 vms_debug (1, "vms_core_file_failing_signal (%p)\n", abfd); 636 #endif 637 return 0; 638 } 639 640 /* Return TRUE if the core file attached to core_bfd was generated 641 by a run of the executable file attached to exec_bfd, FALSE otherwise. */ 642 643 static bfd_boolean 644 vms_core_file_matches_executable_p (bfd * abfd ATTRIBUTE_UNUSED, 645 bfd *bbfd ATTRIBUTE_UNUSED) 646 { 647 #if VMS_DEBUG 648 vms_debug (1, "vms_core_file_matches_executable_p (%p, %p)\n", abfd, bbfd); 649 #endif 650 return FALSE; 651 } 652 653 /* Part 4.4, archive. */ 654 655 /* ??? do something with an archive map. 656 Return FALSE on error, TRUE otherwise. */ 657 658 static bfd_boolean 659 vms_slurp_armap (bfd * abfd ATTRIBUTE_UNUSED) 660 { 661 #if VMS_DEBUG 662 vms_debug (1, "vms_slurp_armap (%p)\n", abfd); 663 #endif 664 return FALSE; 665 } 666 667 /* ??? do something with an extended name table. 668 Return FALSE on error, TRUE otherwise. */ 669 670 static bfd_boolean 671 vms_slurp_extended_name_table (bfd * abfd ATTRIBUTE_UNUSED) 672 { 673 #if VMS_DEBUG 674 vms_debug (1, "vms_slurp_extended_name_table (%p)\n", abfd); 675 #endif 676 return FALSE; 677 } 678 679 /* ??? do something with an extended name table. 680 Return FALSE on error, TRUE otherwise. */ 681 682 static bfd_boolean 683 vms_construct_extended_name_table (bfd * abfd ATTRIBUTE_UNUSED, 684 char **tabloc ATTRIBUTE_UNUSED, 685 bfd_size_type *tablen ATTRIBUTE_UNUSED, 686 const char **name ATTRIBUTE_UNUSED) 687 { 688 #if VMS_DEBUG 689 vms_debug (1, "vms_construct_extended_name_table (%p)\n", abfd); 690 #endif 691 return FALSE; 692 } 693 694 /* Truncate the name of an archive to match system-dependent restrictions. */ 695 696 static void 697 vms_truncate_arname (bfd * abfd ATTRIBUTE_UNUSED, 698 const char *pathname ATTRIBUTE_UNUSED, 699 char *arhdr ATTRIBUTE_UNUSED) 700 { 701 #if VMS_DEBUG 702 vms_debug (1, "vms_truncate_arname (%p, %s, %s)\n", abfd, pathname, arhdr); 703 #endif 704 return; 705 } 706 707 /* ??? write archive map. */ 708 709 static bfd_boolean 710 vms_write_armap (bfd *arch ATTRIBUTE_UNUSED, 711 unsigned int elength ATTRIBUTE_UNUSED, 712 struct orl *map ATTRIBUTE_UNUSED, 713 unsigned int orl_count ATTRIBUTE_UNUSED, 714 int stridx ATTRIBUTE_UNUSED) 715 { 716 #if VMS_DEBUG 717 vms_debug (1, "vms_write_armap (%p, %d, %p, %d %d)\n", 718 arch, elength, map, orl_count, stridx); 719 #endif 720 return TRUE; 721 } 722 723 /* Read archive header ??? */ 724 725 static void * 726 vms_read_ar_hdr (bfd * abfd ATTRIBUTE_UNUSED) 727 { 728 #if VMS_DEBUG 729 vms_debug (1, "vms_read_ar_hdr (%p)\n", abfd); 730 #endif 731 return NULL; 732 } 733 734 /* Provided a BFD, @var{archive}, containing an archive and NULL, open 735 an input BFD on the first contained element and returns that. 736 Subsequent calls should pass the archive and the previous return value 737 to return a created BFD to the next contained element. 738 NULL is returned when there are no more. */ 739 740 static bfd * 741 vms_openr_next_archived_file (bfd *arch ATTRIBUTE_UNUSED, 742 bfd *prev ATTRIBUTE_UNUSED) 743 { 744 #if VMS_DEBUG 745 vms_debug (1, "vms_openr_next_archived_file (%p, %p)\n", arch, prev); 746 #endif 747 return NULL; 748 } 749 750 /* Return the BFD which is referenced by the symbol in ABFD indexed by 751 INDEX. INDEX should have been returned by bfd_get_next_mapent. */ 752 753 static bfd * 754 vms_get_elt_at_index (bfd * abfd, symindex index) 755 { 756 #if VMS_DEBUG 757 vms_debug (1, "vms_get_elt_at_index (%p, %p)\n", abfd, index); 758 #endif 759 return _bfd_generic_get_elt_at_index (abfd, index); 760 } 761 762 /* ??? 763 -> bfd_generic_stat_arch_elt. */ 764 765 static int 766 vms_generic_stat_arch_elt (bfd * abfd, struct stat *st) 767 { 768 #if VMS_DEBUG 769 vms_debug (1, "vms_generic_stat_arch_elt (%p, %p)\n", abfd, st); 770 #endif 771 return bfd_generic_stat_arch_elt (abfd, st); 772 } 773 774 /* This is a new function in bfd 2.5. */ 775 776 static bfd_boolean 777 vms_update_armap_timestamp (bfd * abfd ATTRIBUTE_UNUSED) 778 { 779 #if VMS_DEBUG 780 vms_debug (1, "vms_update_armap_timestamp (%p)\n", abfd); 781 #endif 782 return TRUE; 783 } 784 785 /* Part 4.5, symbols. */ 786 787 /* Return the number of bytes required to store a vector of pointers 788 to asymbols for all the symbols in the BFD abfd, including a 789 terminal NULL pointer. If there are no symbols in the BFD, 790 then return 0. If an error occurs, return -1. */ 791 792 static long 793 vms_get_symtab_upper_bound (bfd * abfd) 794 { 795 #if VMS_DEBUG 796 vms_debug (1, "vms_get_symtab_upper_bound (%p), %d symbols\n", abfd, PRIV (gsd_sym_count)); 797 #endif 798 return (PRIV (gsd_sym_count) + 1) * sizeof (asymbol *); 799 } 800 801 /* Copy symbols from hash table to symbol vector 802 803 called from bfd_hash_traverse in vms_canonicalize_symtab 804 init counter to 0 if entry == 0. */ 805 806 static bfd_boolean 807 copy_symbols (struct bfd_hash_entry *entry, void * arg) 808 { 809 bfd * abfd = (bfd *) arg; 810 811 if (entry == NULL) /* Init counter. */ 812 PRIV (symnum) = 0; 813 else /* Fill vector, inc counter. */ 814 PRIV (symcache)[PRIV (symnum)++] = ((vms_symbol_entry *)entry)->symbol; 815 816 return TRUE; 817 } 818 819 /* Read the symbols from the BFD abfd, and fills in the vector 820 location with pointers to the symbols and a trailing NULL. 821 822 Return number of symbols read. */ 823 824 static long 825 vms_canonicalize_symtab (bfd * abfd, asymbol **symbols) 826 { 827 #if VMS_DEBUG 828 vms_debug (1, "vms_canonicalize_symtab (%p, <ret>)\n", abfd); 829 #endif 830 831 /* Init counter. */ 832 copy_symbols (NULL, abfd); 833 834 /* Traverse table and fill symbols vector. */ 835 PRIV (symcache) = symbols; 836 bfd_hash_traverse (PRIV (vms_symbol_table), copy_symbols, abfd); 837 838 symbols[PRIV (gsd_sym_count)] = NULL; 839 840 return PRIV (gsd_sym_count); 841 } 842 843 /* Print symbol to file according to how. how is one of 844 bfd_print_symbol_name just print the name 845 bfd_print_symbol_more print more (???) 846 bfd_print_symbol_all print all we know, which is not much right now :-). */ 847 848 static void 849 vms_print_symbol (bfd * abfd, 850 void * file, 851 asymbol *symbol, 852 bfd_print_symbol_type how) 853 { 854 #if VMS_DEBUG 855 vms_debug (1, "vms_print_symbol (%p, %p, %p, %d)\n", abfd, file, symbol, how); 856 #endif 857 858 switch (how) 859 { 860 case bfd_print_symbol_name: 861 case bfd_print_symbol_more: 862 fprintf ((FILE *)file," %s", symbol->name); 863 break; 864 865 case bfd_print_symbol_all: 866 { 867 const char *section_name = symbol->section->name; 868 869 bfd_print_symbol_vandf (abfd, file, symbol); 870 871 fprintf ((FILE *) file," %-8s %s", section_name, symbol->name); 872 } 873 break; 874 } 875 } 876 877 /* Return information about symbol in ret. 878 879 fill type, value and name 880 type: 881 A absolute 882 B bss segment symbol 883 C common symbol 884 D data segment symbol 885 f filename 886 t a static function symbol 887 T text segment symbol 888 U undefined 889 - debug. */ 890 891 static void 892 vms_get_symbol_info (bfd * abfd ATTRIBUTE_UNUSED, 893 asymbol *symbol, 894 symbol_info *ret) 895 { 896 asection *sec; 897 898 #if VMS_DEBUG 899 vms_debug (1, "vms_get_symbol_info (%p, %p, %p)\n", abfd, symbol, ret); 900 #endif 901 902 sec = symbol->section; 903 904 if (ret == NULL) 905 return; 906 907 if (bfd_is_com_section (sec)) 908 ret->type = 'C'; 909 else if (bfd_is_abs_section (sec)) 910 ret->type = 'A'; 911 else if (bfd_is_und_section (sec)) 912 ret->type = 'U'; 913 else if (bfd_is_ind_section (sec)) 914 ret->type = 'I'; 915 else if (bfd_get_section_flags (abfd, sec) & SEC_CODE) 916 ret->type = 'T'; 917 else if (bfd_get_section_flags (abfd, sec) & SEC_DATA) 918 ret->type = 'D'; 919 else if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC) 920 ret->type = 'B'; 921 else 922 ret->type = '-'; 923 924 if (ret->type != 'U') 925 ret->value = symbol->value + symbol->section->vma; 926 else 927 ret->value = 0; 928 ret->name = symbol->name; 929 } 930 931 /* Return TRUE if the given symbol sym in the BFD abfd is 932 a compiler generated local label, else return FALSE. */ 933 934 static bfd_boolean 935 vms_bfd_is_local_label_name (bfd * abfd ATTRIBUTE_UNUSED, 936 const char *name) 937 { 938 #if VMS_DEBUG 939 vms_debug (1, "vms_bfd_is_local_label_name (%p, %s)\n", abfd, name); 940 #endif 941 return name[0] == '$'; 942 } 943 944 /* Get source line number for symbol. */ 945 946 static alent * 947 vms_get_lineno (bfd * abfd ATTRIBUTE_UNUSED, 948 asymbol *symbol ATTRIBUTE_UNUSED) 949 { 950 #if VMS_DEBUG 951 vms_debug (1, "vms_get_lineno (%p, %p)\n", abfd, symbol); 952 #endif 953 return NULL; 954 } 955 956 /* Provided a BFD, a section and an offset into the section, calculate and 957 return the name of the source file and the line nearest to the wanted 958 location. */ 959 960 static bfd_boolean 961 vms_find_nearest_line (bfd * abfd ATTRIBUTE_UNUSED, 962 asection *section ATTRIBUTE_UNUSED, 963 asymbol **symbols ATTRIBUTE_UNUSED, 964 bfd_vma offset ATTRIBUTE_UNUSED, 965 const char **file ATTRIBUTE_UNUSED, 966 const char **func ATTRIBUTE_UNUSED, 967 unsigned int *line ATTRIBUTE_UNUSED) 968 { 969 #if VMS_DEBUG 970 vms_debug (1, "vms_find_nearest_line (%p, %s, %p, %ld, <ret>, <ret>, <ret>)\n", 971 abfd, section->name, symbols, (long int)offset); 972 #endif 973 return FALSE; 974 } 975 976 static bfd_boolean 977 vms_find_inliner_info (bfd * abfd ATTRIBUTE_UNUSED, 978 const char **file ATTRIBUTE_UNUSED, 979 const char **func ATTRIBUTE_UNUSED, 980 unsigned int *line ATTRIBUTE_UNUSED) 981 { 982 #if VMS_DEBUG 983 vms_debug (1, "vms_find_inliner_info (%p, <ret>, <ret>, <ret>)\n", 984 abfd); 985 #endif 986 return FALSE; 987 } 988 989 /* Back-door to allow format-aware applications to create debug symbols 990 while using BFD for everything else. Currently used by the assembler 991 when creating COFF files. */ 992 993 static asymbol * 994 vms_bfd_make_debug_symbol (bfd * abfd ATTRIBUTE_UNUSED, 995 void *ptr ATTRIBUTE_UNUSED, 996 unsigned long size ATTRIBUTE_UNUSED) 997 { 998 #if VMS_DEBUG 999 vms_debug (1, "vms_bfd_make_debug_symbol (%p, %p, %ld)\n", abfd, ptr, size); 1000 #endif 1001 return NULL; 1002 } 1003 1004 /* Read minisymbols. For minisymbols, we use the unmodified a.out 1005 symbols. The minisymbol_to_symbol function translates these into 1006 BFD asymbol structures. */ 1007 1008 static long 1009 vms_read_minisymbols (bfd * abfd, 1010 bfd_boolean dynamic, 1011 void * *minisymsp, 1012 unsigned int *sizep) 1013 { 1014 #if VMS_DEBUG 1015 vms_debug (1, "vms_read_minisymbols (%p, %d, %p, %d)\n", abfd, dynamic, minisymsp, *sizep); 1016 #endif 1017 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep); 1018 } 1019 1020 /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an 1021 unmodified a.out symbol. The SYM argument is a structure returned 1022 by bfd_make_empty_symbol, which we fill in here. */ 1023 1024 static asymbol * 1025 vms_minisymbol_to_symbol (bfd * abfd, 1026 bfd_boolean dynamic, 1027 const void * minisym, 1028 asymbol *sym) 1029 { 1030 #if VMS_DEBUG 1031 vms_debug (1, "vms_minisymbol_to_symbol (%p, %d, %p, %p)\n", abfd, dynamic, minisym, sym); 1032 #endif 1033 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym); 1034 } 1035 1036 /* Part 4.6, relocations. */ 1037 1038 /* Return the number of bytes required to store the relocation information 1039 associated with section sect attached to bfd abfd. 1040 If an error occurs, return -1. */ 1041 1042 static long 1043 vms_get_reloc_upper_bound (bfd * abfd ATTRIBUTE_UNUSED, 1044 asection *section ATTRIBUTE_UNUSED) 1045 { 1046 #if VMS_DEBUG 1047 vms_debug (1, "vms_get_reloc_upper_bound (%p, %s)\n", abfd, section->name); 1048 #endif 1049 return -1L; 1050 } 1051 1052 /* Call the back end associated with the open BFD abfd and translate the 1053 external form of the relocation information attached to sec into the 1054 internal canonical form. Place the table into memory at loc, which has 1055 been preallocated, usually by a call to bfd_get_reloc_upper_bound. 1056 Returns the number of relocs, or -1 on error. */ 1057 1058 static long 1059 vms_canonicalize_reloc (bfd * abfd ATTRIBUTE_UNUSED, 1060 asection *section ATTRIBUTE_UNUSED, 1061 arelent **location ATTRIBUTE_UNUSED, 1062 asymbol **symbols ATTRIBUTE_UNUSED) 1063 { 1064 #if VMS_DEBUG 1065 vms_debug (1, "vms_canonicalize_reloc (%p, %s, <ret>, <ret>)\n", abfd, section->name); 1066 #endif 1067 return FALSE; 1068 } 1069 1070 /* This is just copied from ecoff-alpha, needs to be fixed probably. */ 1071 1072 /* How to process the various reloc types. */ 1073 1074 static bfd_reloc_status_type 1075 reloc_nil (bfd * abfd ATTRIBUTE_UNUSED, 1076 arelent *reloc ATTRIBUTE_UNUSED, 1077 asymbol *sym ATTRIBUTE_UNUSED, 1078 void * data ATTRIBUTE_UNUSED, 1079 asection *sec ATTRIBUTE_UNUSED, 1080 bfd *output_bfd ATTRIBUTE_UNUSED, 1081 char **error_message ATTRIBUTE_UNUSED) 1082 { 1083 #if VMS_DEBUG 1084 vms_debug (1, "reloc_nil (abfd %p, output_bfd %p)\n", abfd, output_bfd); 1085 vms_debug (2, "In section %s, symbol %s\n", 1086 sec->name, sym->name); 1087 vms_debug (2, "reloc sym %s, addr %08lx, addend %08lx, reloc is a %s\n", 1088 reloc->sym_ptr_ptr[0]->name, 1089 (unsigned long)reloc->address, 1090 (unsigned long)reloc->addend, reloc->howto->name); 1091 vms_debug (2, "data at %p\n", data); 1092 /* _bfd_hexdump (2, data, bfd_get_reloc_size (reloc->howto), 0); */ 1093 #endif 1094 1095 return bfd_reloc_ok; 1096 } 1097 1098 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value 1099 from smaller values. Start with zero, widen, *then* decrement. */ 1100 #define MINUS_ONE (((bfd_vma)0) - 1) 1101 1102 static reloc_howto_type alpha_howto_table[] = 1103 { 1104 HOWTO (ALPHA_R_IGNORE, /* Type. */ 1105 0, /* Rightshift. */ 1106 0, /* Size (0 = byte, 1 = short, 2 = long). */ 1107 8, /* Bitsize. */ 1108 TRUE, /* PC relative. */ 1109 0, /* Bitpos. */ 1110 complain_overflow_dont,/* Complain_on_overflow. */ 1111 reloc_nil, /* Special_function. */ 1112 "IGNORE", /* Name. */ 1113 TRUE, /* Partial_inplace. */ 1114 0, /* Source mask */ 1115 0, /* Dest mask. */ 1116 TRUE), /* PC rel offset. */ 1117 1118 /* A 64 bit reference to a symbol. */ 1119 HOWTO (ALPHA_R_REFQUAD, /* Type. */ 1120 0, /* Rightshift. */ 1121 4, /* Size (0 = byte, 1 = short, 2 = long). */ 1122 64, /* Bitsize. */ 1123 FALSE, /* PC relative. */ 1124 0, /* Bitpos. */ 1125 complain_overflow_bitfield, /* Complain_on_overflow. */ 1126 reloc_nil, /* Special_function. */ 1127 "REFQUAD", /* Name. */ 1128 TRUE, /* Partial_inplace. */ 1129 MINUS_ONE, /* Source mask. */ 1130 MINUS_ONE, /* Dest mask. */ 1131 FALSE), /* PC rel offset. */ 1132 1133 /* A 21 bit branch. The native assembler generates these for 1134 branches within the text segment, and also fills in the PC 1135 relative offset in the instruction. */ 1136 HOWTO (ALPHA_R_BRADDR, /* Type. */ 1137 2, /* Rightshift. */ 1138 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1139 21, /* Bitsize. */ 1140 TRUE, /* PC relative. */ 1141 0, /* Bitpos. */ 1142 complain_overflow_signed, /* Complain_on_overflow. */ 1143 reloc_nil, /* Special_function. */ 1144 "BRADDR", /* Name. */ 1145 TRUE, /* Partial_inplace. */ 1146 0x1fffff, /* Source mask. */ 1147 0x1fffff, /* Dest mask. */ 1148 FALSE), /* PC rel offset. */ 1149 1150 /* A hint for a jump to a register. */ 1151 HOWTO (ALPHA_R_HINT, /* Type. */ 1152 2, /* Rightshift. */ 1153 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1154 14, /* Bitsize. */ 1155 TRUE, /* PC relative. */ 1156 0, /* Bitpos. */ 1157 complain_overflow_dont,/* Complain_on_overflow. */ 1158 reloc_nil, /* Special_function. */ 1159 "HINT", /* Name. */ 1160 TRUE, /* Partial_inplace. */ 1161 0x3fff, /* Source mask. */ 1162 0x3fff, /* Dest mask. */ 1163 FALSE), /* PC rel offset. */ 1164 1165 /* 16 bit PC relative offset. */ 1166 HOWTO (ALPHA_R_SREL16, /* Type. */ 1167 0, /* Rightshift. */ 1168 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1169 16, /* Bitsize. */ 1170 TRUE, /* PC relative. */ 1171 0, /* Bitpos. */ 1172 complain_overflow_signed, /* Complain_on_overflow. */ 1173 reloc_nil, /* Special_function. */ 1174 "SREL16", /* Name. */ 1175 TRUE, /* Partial_inplace. */ 1176 0xffff, /* Source mask. */ 1177 0xffff, /* Dest mask. */ 1178 FALSE), /* PC rel offset. */ 1179 1180 /* 32 bit PC relative offset. */ 1181 HOWTO (ALPHA_R_SREL32, /* Type. */ 1182 0, /* Rightshift. */ 1183 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1184 32, /* Bitsize. */ 1185 TRUE, /* PC relative. */ 1186 0, /* Bitpos. */ 1187 complain_overflow_signed, /* Complain_on_overflow. */ 1188 reloc_nil, /* Special_function. */ 1189 "SREL32", /* Name. */ 1190 TRUE, /* Partial_inplace. */ 1191 0xffffffff, /* Source mask. */ 1192 0xffffffff, /* Dest mask. */ 1193 FALSE), /* PC rel offset. */ 1194 1195 /* A 64 bit PC relative offset. */ 1196 HOWTO (ALPHA_R_SREL64, /* Type. */ 1197 0, /* Rightshift. */ 1198 4, /* Size (0 = byte, 1 = short, 2 = long). */ 1199 64, /* Bitsize. */ 1200 TRUE, /* PC relative. */ 1201 0, /* Bitpos. */ 1202 complain_overflow_signed, /* Complain_on_overflow. */ 1203 reloc_nil, /* Special_function. */ 1204 "SREL64", /* Name. */ 1205 TRUE, /* Partial_inplace. */ 1206 MINUS_ONE, /* Source mask. */ 1207 MINUS_ONE, /* Dest mask. */ 1208 FALSE), /* PC rel offset. */ 1209 1210 /* Push a value on the reloc evaluation stack. */ 1211 HOWTO (ALPHA_R_OP_PUSH, /* Type. */ 1212 0, /* Rightshift. */ 1213 0, /* Size (0 = byte, 1 = short, 2 = long). */ 1214 0, /* Bitsize. */ 1215 FALSE, /* PC relative. */ 1216 0, /* Bitpos. */ 1217 complain_overflow_dont,/* Complain_on_overflow. */ 1218 reloc_nil, /* Special_function. */ 1219 "OP_PUSH", /* Name. */ 1220 FALSE, /* Partial_inplace. */ 1221 0, /* Source mask. */ 1222 0, /* Dest mask. */ 1223 FALSE), /* PC rel offset. */ 1224 1225 /* Store the value from the stack at the given address. Store it in 1226 a bitfield of size r_size starting at bit position r_offset. */ 1227 HOWTO (ALPHA_R_OP_STORE, /* Type. */ 1228 0, /* Rightshift. */ 1229 4, /* Size (0 = byte, 1 = short, 2 = long). */ 1230 64, /* Bitsize. */ 1231 FALSE, /* PC relative. */ 1232 0, /* Bitpos. */ 1233 complain_overflow_dont,/* Complain_on_overflow. */ 1234 reloc_nil, /* Special_function. */ 1235 "OP_STORE", /* Name. */ 1236 FALSE, /* Partial_inplace. */ 1237 0, /* Source mask. */ 1238 MINUS_ONE, /* Dest mask. */ 1239 FALSE), /* PC rel offset. */ 1240 1241 /* Subtract the reloc address from the value on the top of the 1242 relocation stack. */ 1243 HOWTO (ALPHA_R_OP_PSUB, /* Type. */ 1244 0, /* Rightshift. */ 1245 0, /* Size (0 = byte, 1 = short, 2 = long). */ 1246 0, /* Bitsize. */ 1247 FALSE, /* PC relative. */ 1248 0, /* Bitpos. */ 1249 complain_overflow_dont,/* Complain_on_overflow. */ 1250 reloc_nil, /* Special_function. */ 1251 "OP_PSUB", /* Name. */ 1252 FALSE, /* Partial_inplace. */ 1253 0, /* Source mask. */ 1254 0, /* Dest mask. */ 1255 FALSE), /* PC rel offset. */ 1256 1257 /* Shift the value on the top of the relocation stack right by the 1258 given value. */ 1259 HOWTO (ALPHA_R_OP_PRSHIFT, /* Type. */ 1260 0, /* Rightshift. */ 1261 0, /* Size (0 = byte, 1 = short, 2 = long). */ 1262 0, /* Bitsize. */ 1263 FALSE, /* PC relative. */ 1264 0, /* Bitpos. */ 1265 complain_overflow_dont,/* Complain_on_overflow. */ 1266 reloc_nil, /* Special_function. */ 1267 "OP_PRSHIFT", /* Name. */ 1268 FALSE, /* Partial_inplace. */ 1269 0, /* Source mask. */ 1270 0, /* Dest mask. */ 1271 FALSE), /* PC rel offset. */ 1272 1273 /* Hack. Linkage is done by linker. */ 1274 HOWTO (ALPHA_R_LINKAGE, /* Type. */ 1275 0, /* Rightshift. */ 1276 8, /* Size (0 = byte, 1 = short, 2 = long). */ 1277 256, /* Bitsize. */ 1278 FALSE, /* PC relative. */ 1279 0, /* Bitpos. */ 1280 complain_overflow_dont,/* Complain_on_overflow. */ 1281 reloc_nil, /* Special_function. */ 1282 "LINKAGE", /* Name. */ 1283 FALSE, /* Partial_inplace. */ 1284 0, /* Source mask. */ 1285 0, /* Dest mask. */ 1286 FALSE), /* PC rel offset. */ 1287 1288 /* A 32 bit reference to a symbol. */ 1289 HOWTO (ALPHA_R_REFLONG, /* Type. */ 1290 0, /* Rightshift. */ 1291 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1292 32, /* Bitsize. */ 1293 FALSE, /* PC relative. */ 1294 0, /* Bitpos. */ 1295 complain_overflow_bitfield, /* Complain_on_overflow. */ 1296 reloc_nil, /* Special_function. */ 1297 "REFLONG", /* Name. */ 1298 TRUE, /* Partial_inplace. */ 1299 0xffffffff, /* Source mask. */ 1300 0xffffffff, /* Dest mask. */ 1301 FALSE), /* PC rel offset. */ 1302 1303 /* A 64 bit reference to a procedure, written as 32 bit value. */ 1304 HOWTO (ALPHA_R_CODEADDR, /* Type. */ 1305 0, /* Rightshift. */ 1306 4, /* Size (0 = byte, 1 = short, 2 = long). */ 1307 64, /* Bitsize. */ 1308 FALSE, /* PC relative. */ 1309 0, /* Bitpos. */ 1310 complain_overflow_signed,/* Complain_on_overflow. */ 1311 reloc_nil, /* Special_function. */ 1312 "CODEADDR", /* Name. */ 1313 FALSE, /* Partial_inplace. */ 1314 0xffffffff, /* Source mask. */ 1315 0xffffffff, /* Dest mask. */ 1316 FALSE), /* PC rel offset. */ 1317 1318 }; 1319 1320 /* Return a pointer to a howto structure which, when invoked, will perform 1321 the relocation code on data from the architecture noted. */ 1322 1323 static const struct reloc_howto_struct * 1324 vms_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, 1325 bfd_reloc_code_real_type code) 1326 { 1327 int alpha_type; 1328 1329 #if VMS_DEBUG 1330 vms_debug (1, "vms_bfd_reloc_type_lookup (%p, %d)\t", abfd, code); 1331 #endif 1332 1333 switch (code) 1334 { 1335 case BFD_RELOC_16: alpha_type = ALPHA_R_SREL16; break; 1336 case BFD_RELOC_32: alpha_type = ALPHA_R_REFLONG; break; 1337 case BFD_RELOC_64: alpha_type = ALPHA_R_REFQUAD; break; 1338 case BFD_RELOC_CTOR: alpha_type = ALPHA_R_REFQUAD; break; 1339 case BFD_RELOC_23_PCREL_S2: alpha_type = ALPHA_R_BRADDR; break; 1340 case BFD_RELOC_ALPHA_HINT: alpha_type = ALPHA_R_HINT; break; 1341 case BFD_RELOC_16_PCREL: alpha_type = ALPHA_R_SREL16; break; 1342 case BFD_RELOC_32_PCREL: alpha_type = ALPHA_R_SREL32; break; 1343 case BFD_RELOC_64_PCREL: alpha_type = ALPHA_R_SREL64; break; 1344 case BFD_RELOC_ALPHA_LINKAGE: alpha_type = ALPHA_R_LINKAGE; break; 1345 case BFD_RELOC_ALPHA_CODEADDR: alpha_type = ALPHA_R_CODEADDR; break; 1346 default: 1347 (*_bfd_error_handler) ("reloc (%d) is *UNKNOWN*", code); 1348 return NULL; 1349 } 1350 #if VMS_DEBUG 1351 vms_debug (2, "reloc is %s\n", alpha_howto_table[alpha_type].name); 1352 #endif 1353 return & alpha_howto_table[alpha_type]; 1354 } 1355 1356 /* Part 4.7, writing an object file. */ 1357 1358 /* Set the architecture and machine type in BFD abfd to arch and mach. 1359 Find the correct pointer to a structure and insert it into the arch_info 1360 pointer. */ 1361 1362 static bfd_boolean 1363 vms_set_arch_mach (bfd * abfd, 1364 enum bfd_architecture arch ATTRIBUTE_UNUSED, 1365 unsigned long mach ATTRIBUTE_UNUSED) 1366 { 1367 #if VMS_DEBUG 1368 vms_debug (1, "vms_set_arch_mach (%p, %d, %ld)\n", abfd, arch, mach); 1369 #endif 1370 abfd->arch_info = bfd_scan_arch ("alpha"); 1371 1372 return TRUE; 1373 } 1374 1375 /* Sets the contents of the section section in BFD abfd to the data starting 1376 in memory at data. The data is written to the output section starting at 1377 offset offset for count bytes. 1378 1379 Normally TRUE is returned, else FALSE. Possible error returns are: 1380 o bfd_error_no_contents - The output section does not have the 1381 SEC_HAS_CONTENTS attribute, so nothing can be written to it. 1382 o and some more too */ 1383 1384 static bfd_boolean 1385 vms_set_section_contents (bfd * abfd, 1386 asection *section, 1387 const void * location, 1388 file_ptr offset, 1389 bfd_size_type count) 1390 { 1391 #if VMS_DEBUG 1392 vms_debug (1, "vms_set_section_contents (%p, sec %s, loc %p, off %ld, count %d)\n", 1393 abfd, section->name, location, (long int)offset, (int)count); 1394 vms_debug (2, "size %d\n", (int) section->size); 1395 #endif 1396 return _bfd_save_vms_section (abfd, section, location, offset, count); 1397 } 1398 1399 /* Part 4.8, linker. */ 1400 1401 /* Get the size of the section headers. */ 1402 1403 static int 1404 vms_sizeof_headers (bfd * abfd ATTRIBUTE_UNUSED, 1405 bfd_boolean reloc ATTRIBUTE_UNUSED) 1406 { 1407 #if VMS_DEBUG 1408 vms_debug (1, "vms_sizeof_headers (%p, %s)\n", abfd, (reloc)?"True":"False"); 1409 #endif 1410 return 0; 1411 } 1412 1413 /* Provides default handling of relocation effort for back ends 1414 which can't be bothered to do it efficiently. */ 1415 1416 static bfd_byte * 1417 vms_bfd_get_relocated_section_contents (bfd * abfd ATTRIBUTE_UNUSED, 1418 struct bfd_link_info *link_info ATTRIBUTE_UNUSED, 1419 struct bfd_link_order *link_order ATTRIBUTE_UNUSED, 1420 bfd_byte *data ATTRIBUTE_UNUSED, 1421 bfd_boolean relocatable ATTRIBUTE_UNUSED, 1422 asymbol **symbols ATTRIBUTE_UNUSED) 1423 { 1424 #if VMS_DEBUG 1425 vms_debug (1, "vms_bfd_get_relocated_section_contents (%p, %p, %p, %p, %s, %p)\n", 1426 abfd, link_info, link_order, data, (relocatable)?"True":"False", symbols); 1427 #endif 1428 return NULL; 1429 } 1430 1431 /* ??? */ 1432 1433 static bfd_boolean 1434 vms_bfd_relax_section (bfd * abfd ATTRIBUTE_UNUSED, 1435 asection *section ATTRIBUTE_UNUSED, 1436 struct bfd_link_info *link_info ATTRIBUTE_UNUSED, 1437 bfd_boolean *again ATTRIBUTE_UNUSED) 1438 { 1439 #if VMS_DEBUG 1440 vms_debug (1, "vms_bfd_relax_section (%p, %s, %p, <ret>)\n", 1441 abfd, section->name, link_info); 1442 #endif 1443 return TRUE; 1444 } 1445 1446 static bfd_boolean 1447 vms_bfd_gc_sections (bfd * abfd ATTRIBUTE_UNUSED, 1448 struct bfd_link_info *link_info ATTRIBUTE_UNUSED) 1449 { 1450 #if VMS_DEBUG 1451 vms_debug (1, "vms_bfd_gc_sections (%p, %p)\n", abfd, link_info); 1452 #endif 1453 return TRUE; 1454 } 1455 1456 static bfd_boolean 1457 vms_bfd_merge_sections (bfd * abfd ATTRIBUTE_UNUSED, 1458 struct bfd_link_info *link_info ATTRIBUTE_UNUSED) 1459 { 1460 #if VMS_DEBUG 1461 vms_debug (1, "vms_bfd_merge_sections (%p, %p)\n", abfd, link_info); 1462 #endif 1463 return TRUE; 1464 } 1465 1466 /* Create a hash table for the linker. Different backends store 1467 different information in this table. */ 1468 1469 static struct bfd_link_hash_table * 1470 vms_bfd_link_hash_table_create (bfd * abfd ATTRIBUTE_UNUSED) 1471 { 1472 #if VMS_DEBUG 1473 vms_debug (1, "vms_bfd_link_hash_table_create (%p)\n", abfd); 1474 #endif 1475 return NULL; 1476 } 1477 1478 /* Free a linker hash table. */ 1479 1480 static void 1481 vms_bfd_link_hash_table_free (struct bfd_link_hash_table *hash ATTRIBUTE_UNUSED) 1482 { 1483 #if VMS_DEBUG 1484 vms_debug (1, "vms_bfd_link_hash_table_free (%p)\n", abfd); 1485 #endif 1486 } 1487 1488 /* Add symbols from this object file into the hash table. */ 1489 1490 static bfd_boolean 1491 vms_bfd_link_add_symbols (bfd * abfd ATTRIBUTE_UNUSED, 1492 struct bfd_link_info *link_info ATTRIBUTE_UNUSED) 1493 { 1494 #if VMS_DEBUG 1495 vms_debug (1, "vms_bfd_link_add_symbols (%p, %p)\n", abfd, link_info); 1496 #endif 1497 return FALSE; 1498 } 1499 1500 /* Do a link based on the link_order structures attached to each 1501 section of the BFD. */ 1502 1503 static bfd_boolean 1504 vms_bfd_final_link (bfd * abfd ATTRIBUTE_UNUSED, 1505 struct bfd_link_info *link_info ATTRIBUTE_UNUSED) 1506 { 1507 #if VMS_DEBUG 1508 vms_debug (1, "vms_bfd_final_link (%p, %p)\n", abfd, link_info); 1509 #endif 1510 return TRUE; 1511 } 1512 1513 /* Should this section be split up into smaller pieces during linking. */ 1514 1515 static bfd_boolean 1516 vms_bfd_link_split_section (bfd * abfd ATTRIBUTE_UNUSED, 1517 asection *section ATTRIBUTE_UNUSED) 1518 { 1519 #if VMS_DEBUG 1520 vms_debug (1, "vms_bfd_link_split_section (%p, %s)\n", abfd, section->name); 1521 #endif 1522 return FALSE; 1523 } 1524 1525 /* Part 4.9, dynamic symbols and relocations. */ 1526 1527 /* Get the amount of memory required to hold the dynamic symbols. */ 1528 1529 static long 1530 vms_get_dynamic_symtab_upper_bound (bfd * abfd ATTRIBUTE_UNUSED) 1531 { 1532 #if VMS_DEBUG 1533 vms_debug (1, "vms_get_dynamic_symtab_upper_bound (%p)\n", abfd); 1534 #endif 1535 return 0; 1536 } 1537 1538 static bfd_boolean 1539 vms_bfd_print_private_bfd_data (bfd * abfd ATTRIBUTE_UNUSED, 1540 void *file ATTRIBUTE_UNUSED) 1541 { 1542 #if VMS_DEBUG 1543 vms_debug (1, "vms_bfd_print_private_bfd_data (%p)\n", abfd); 1544 #endif 1545 return FALSE; 1546 } 1547 1548 /* Read in the dynamic symbols. */ 1549 1550 static long 1551 vms_canonicalize_dynamic_symtab (bfd * abfd ATTRIBUTE_UNUSED, 1552 asymbol **symbols ATTRIBUTE_UNUSED) 1553 { 1554 #if VMS_DEBUG 1555 vms_debug (1, "vms_canonicalize_dynamic_symtab (%p, <ret>)\n", abfd); 1556 #endif 1557 return 0L; 1558 } 1559 1560 /* Get the amount of memory required to hold the dynamic relocs. */ 1561 1562 static long 1563 vms_get_dynamic_reloc_upper_bound (bfd * abfd ATTRIBUTE_UNUSED) 1564 { 1565 #if VMS_DEBUG 1566 vms_debug (1, "vms_get_dynamic_reloc_upper_bound (%p)\n", abfd); 1567 #endif 1568 return 0L; 1569 } 1570 1571 /* Read in the dynamic relocs. */ 1572 1573 static long 1574 vms_canonicalize_dynamic_reloc (bfd * abfd ATTRIBUTE_UNUSED, 1575 arelent **arel ATTRIBUTE_UNUSED, 1576 asymbol **symbols ATTRIBUTE_UNUSED) 1577 { 1578 #if VMS_DEBUG 1579 vms_debug (1, "vms_canonicalize_dynamic_reloc (%p)\n", abfd); 1580 #endif 1581 return 0L; 1582 } 1583 1584 const bfd_target vms_alpha_vec = 1585 { 1586 "vms-alpha", /* Name. */ 1587 bfd_target_evax_flavour, 1588 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ 1589 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ 1590 1591 (HAS_RELOC | HAS_SYMS 1592 | WP_TEXT | D_PAGED), /* Object flags. */ 1593 (SEC_ALLOC | SEC_LOAD | SEC_RELOC 1594 | SEC_READONLY | SEC_CODE | SEC_DATA 1595 | SEC_HAS_CONTENTS | SEC_IN_MEMORY), /* Sect flags. */ 1596 0, /* Symbol_leading_char. */ 1597 ' ', /* AR_pad_char. */ 1598 15, /* AR_max_namelen. */ 1599 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 1600 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 1601 bfd_getl16, bfd_getl_signed_16, bfd_putl16, 1602 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 1603 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 1604 bfd_getl16, bfd_getl_signed_16, bfd_putl16, 1605 1606 {_bfd_dummy_target, vms_object_p, /* bfd_check_format. */ 1607 vms_archive_p, _bfd_dummy_target}, 1608 {bfd_false, vms_mkobject, /* bfd_set_format. */ 1609 _bfd_generic_mkarchive, bfd_false}, 1610 {bfd_false, vms_write_object_contents, /* bfd_write_contents. */ 1611 _bfd_write_archive_contents, bfd_false}, 1612 1613 BFD_JUMP_TABLE_GENERIC (vms), 1614 BFD_JUMP_TABLE_COPY (vms), 1615 BFD_JUMP_TABLE_CORE (vms), 1616 BFD_JUMP_TABLE_ARCHIVE (vms), 1617 BFD_JUMP_TABLE_SYMBOLS (vms), 1618 BFD_JUMP_TABLE_RELOCS (vms), 1619 BFD_JUMP_TABLE_WRITE (vms), 1620 BFD_JUMP_TABLE_LINK (vms), 1621 BFD_JUMP_TABLE_DYNAMIC (vms), 1622 1623 NULL, 1624 1625 NULL 1626 }; 1627 1628 const bfd_target vms_vax_vec = 1629 { 1630 "vms-vax", /* Name. */ 1631 bfd_target_ovax_flavour, 1632 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ 1633 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ 1634 1635 (HAS_RELOC | HAS_SYMS /* Object flags. */ 1636 | WP_TEXT | D_PAGED 1637 | HAS_LINENO | HAS_DEBUG | HAS_LOCALS), 1638 1639 (SEC_ALLOC | SEC_LOAD | SEC_RELOC 1640 | SEC_READONLY | SEC_CODE | SEC_DATA 1641 | SEC_HAS_CONTENTS | SEC_IN_MEMORY), /* Sect flags. */ 1642 0, /* Symbol_leading_char. */ 1643 ' ', /* AR_pad_char. */ 1644 15, /* AR_max_namelen. */ 1645 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 1646 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 1647 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */ 1648 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 1649 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 1650 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */ 1651 1652 {_bfd_dummy_target, vms_object_p, /* bfd_check_format. */ 1653 vms_archive_p, _bfd_dummy_target}, 1654 {bfd_false, vms_mkobject, /* bfd_set_format. */ 1655 _bfd_generic_mkarchive, bfd_false}, 1656 {bfd_false, vms_write_object_contents, /* bfd_write_contents. */ 1657 _bfd_write_archive_contents, bfd_false}, 1658 1659 BFD_JUMP_TABLE_GENERIC (vms), 1660 BFD_JUMP_TABLE_COPY (vms), 1661 BFD_JUMP_TABLE_CORE (vms), 1662 BFD_JUMP_TABLE_ARCHIVE (vms), 1663 BFD_JUMP_TABLE_SYMBOLS (vms), 1664 BFD_JUMP_TABLE_RELOCS (vms), 1665 BFD_JUMP_TABLE_WRITE (vms), 1666 BFD_JUMP_TABLE_LINK (vms), 1667 BFD_JUMP_TABLE_DYNAMIC (vms), 1668 1669 NULL, 1670 1671 NULL 1672 }; 1673