elf32-m68hc1x.c 45.8 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524
/* Motorola 68HC11/HC12-specific support for 32-bit ELF
   Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   Contributed by Stephane Carrez (stcarrez@nerim.fr)

This file is part of BFD, the Binary File Descriptor library.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf32-m68hc1x.h"
#include "elf/m68hc11.h"
#include "opcode/m68hc11.h"


#define m68hc12_stub_hash_lookup(table, string, create, copy) \
  ((struct elf32_m68hc11_stub_hash_entry *) \
   bfd_hash_lookup ((table), (string), (create), (copy)))

static struct elf32_m68hc11_stub_hash_entry* m68hc12_add_stub
  PARAMS((const char *stub_name,
          asection *section,
          struct m68hc11_elf_link_hash_table *htab));

static struct bfd_hash_entry *stub_hash_newfunc
  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));

static void m68hc11_elf_set_symbol
  PARAMS ((bfd* abfd, struct bfd_link_info *info,
           const char* name, bfd_vma value, asection* sec));

static bfd_boolean m68hc11_elf_export_one_stub
  PARAMS((struct bfd_hash_entry *gen_entry, PTR in_arg));

static bfd_boolean m68hc11_get_relocation_value
  PARAMS ((bfd* abfd,
           struct bfd_link_info* info,
           asection **local_sections,
           Elf_Internal_Sym* local_syms,
           Elf_Internal_Rela* rel,
           const char** name,
           bfd_vma* relocation,
           bfd_boolean* is_far));

static void scan_sections_for_abi PARAMS ((bfd*, asection*, PTR));

struct m68hc11_scan_param
{
   struct m68hc11_page_info* pinfo;
   bfd_boolean use_memory_banks;
};


/* Create a 68HC11/68HC12 ELF linker hash table.  */

struct m68hc11_elf_link_hash_table*
m68hc11_elf_hash_table_create (abfd)
     bfd *abfd;
{
  struct m68hc11_elf_link_hash_table *ret;
  bfd_size_type amt = sizeof (struct m68hc11_elf_link_hash_table);

  ret = (struct m68hc11_elf_link_hash_table *) bfd_malloc (amt);
  if (ret == (struct m68hc11_elf_link_hash_table *) NULL)
    return NULL;

  memset (ret, 0, amt);
  if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
				       _bfd_elf_link_hash_newfunc))
    {
      free (ret);
      return NULL;
    }

  /* Init the stub hash table too.  */
  amt = sizeof (struct bfd_hash_table);
  ret->stub_hash_table = (struct bfd_hash_table*) bfd_malloc (amt);
  if (ret->stub_hash_table == NULL)
    {
      free (ret);
      return NULL;
    }
  if (!bfd_hash_table_init (ret->stub_hash_table, stub_hash_newfunc))
    return NULL;

  ret->stub_bfd = NULL;
  ret->stub_section = 0;
  ret->add_stub_section = NULL;
  ret->sym_sec.abfd = NULL;

  return ret;
}

/* Free the derived linker hash table.  */

void
m68hc11_elf_bfd_link_hash_table_free (hash)
     struct bfd_link_hash_table *hash;
{
  struct m68hc11_elf_link_hash_table *ret
    = (struct m68hc11_elf_link_hash_table *) hash;

  bfd_hash_table_free (ret->stub_hash_table);
  free (ret->stub_hash_table);
  _bfd_generic_link_hash_table_free (hash);
}

/* Assorted hash table functions.  */

/* Initialize an entry in the stub hash table.  */

static struct bfd_hash_entry *
stub_hash_newfunc (entry, table, string)
     struct bfd_hash_entry *entry;
     struct bfd_hash_table *table;
     const char *string;
{
  /* Allocate the structure if it has not already been allocated by a
     subclass.  */
  if (entry == NULL)
    {
      entry = bfd_hash_allocate (table,
				 sizeof (struct elf32_m68hc11_stub_hash_entry));
      if (entry == NULL)
	return entry;
    }

  /* Call the allocation method of the superclass.  */
  entry = bfd_hash_newfunc (entry, table, string);
  if (entry != NULL)
    {
      struct elf32_m68hc11_stub_hash_entry *eh;

      /* Initialize the local fields.  */
      eh = (struct elf32_m68hc11_stub_hash_entry *) entry;
      eh->stub_sec = NULL;
      eh->stub_offset = 0;
      eh->target_value = 0;
      eh->target_section = NULL;
    }

  return entry;
}

/* Add a new stub entry to the stub hash.  Not all fields of the new
   stub entry are initialised.  */

static struct elf32_m68hc11_stub_hash_entry *
m68hc12_add_stub (stub_name, section, htab)
     const char *stub_name;
     asection *section;
     struct m68hc11_elf_link_hash_table *htab;
{
  struct elf32_m68hc11_stub_hash_entry *stub_entry;

  /* Enter this entry into the linker stub hash table.  */
  stub_entry = m68hc12_stub_hash_lookup (htab->stub_hash_table, stub_name,
                                         TRUE, FALSE);
  if (stub_entry == NULL)
    {
      (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
			     bfd_archive_filename (section->owner),
			     stub_name);
      return NULL;
    }

  if (htab->stub_section == 0)
    {
      htab->stub_section = (*htab->add_stub_section) (".tramp",
                                                      htab->tramp_section);
    }

  stub_entry->stub_sec = htab->stub_section;
  stub_entry->stub_offset = 0;
  return stub_entry;
}

/* Hook called by the linker routine which adds symbols from an object
   file.  We use it for identify far symbols and force a loading of
   the trampoline handler.  */

bfd_boolean
elf32_m68hc11_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
     bfd *abfd;
     struct bfd_link_info *info;
     const Elf_Internal_Sym *sym;
     const char **namep ATTRIBUTE_UNUSED;
     flagword *flagsp ATTRIBUTE_UNUSED;
     asection **secp ATTRIBUTE_UNUSED;
     bfd_vma *valp ATTRIBUTE_UNUSED;
{
  if (sym->st_other & STO_M68HC12_FAR)
    {
      struct elf_link_hash_entry *h;

      h = (struct elf_link_hash_entry *)
	bfd_link_hash_lookup (info->hash, "__far_trampoline",
                              FALSE, FALSE, FALSE);
      if (h == NULL)
        {
          struct bfd_link_hash_entry* entry = NULL;

          _bfd_generic_link_add_one_symbol (info, abfd,
                                            "__far_trampoline",
                                            BSF_GLOBAL,
                                            bfd_und_section_ptr,
                                            (bfd_vma) 0, (const char*) NULL,
                                            FALSE, FALSE, &entry);
        }

    }
  return TRUE;
}

/* External entry points for sizing and building linker stubs.  */

/* Set up various things so that we can make a list of input sections
   for each output section included in the link.  Returns -1 on error,
   0 when no stubs will be needed, and 1 on success.  */

int
elf32_m68hc11_setup_section_lists (output_bfd, info)
     bfd *output_bfd;
     struct bfd_link_info *info;
{
  bfd *input_bfd;
  unsigned int bfd_count;
  int top_id, top_index;
  asection *section;
  asection **input_list, **list;
  bfd_size_type amt;
  asection *text_section;
  struct m68hc11_elf_link_hash_table *htab;

  htab = m68hc11_elf_hash_table (info);

  if (htab->root.root.creator->flavour != bfd_target_elf_flavour)
    return 0;

  /* Count the number of input BFDs and find the top input section id.
     Also search for an existing ".tramp" section so that we know
     where generated trampolines must go.  Default to ".text" if we
     can't find it.  */
  htab->tramp_section = 0;
  text_section = 0;
  for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
       input_bfd != NULL;
       input_bfd = input_bfd->link_next)
    {
      bfd_count += 1;
      for (section = input_bfd->sections;
	   section != NULL;
	   section = section->next)
	{
          const char* name = bfd_get_section_name (input_bfd, section);

          if (!strcmp (name, ".tramp"))
            htab->tramp_section = section;

          if (!strcmp (name, ".text"))
            text_section = section;

	  if (top_id < section->id)
	    top_id = section->id;
	}
    }
  htab->bfd_count = bfd_count;
  if (htab->tramp_section == 0)
    htab->tramp_section = text_section;

  /* We can't use output_bfd->section_count here to find the top output
     section index as some sections may have been removed, and
     _bfd_strip_section_from_output doesn't renumber the indices.  */
  for (section = output_bfd->sections, top_index = 0;
       section != NULL;
       section = section->next)
    {
      if (top_index < section->index)
	top_index = section->index;
    }

  htab->top_index = top_index;
  amt = sizeof (asection *) * (top_index + 1);
  input_list = (asection **) bfd_malloc (amt);
  htab->input_list = input_list;
  if (input_list == NULL)
    return -1;

  /* For sections we aren't interested in, mark their entries with a
     value we can check later.  */
  list = input_list + top_index;
  do
    *list = bfd_abs_section_ptr;
  while (list-- != input_list);

  for (section = output_bfd->sections;
       section != NULL;
       section = section->next)
    {
      if ((section->flags & SEC_CODE) != 0)
	input_list[section->index] = NULL;
    }

  return 1;
}

/* Determine and set the size of the stub section for a final link.

   The basic idea here is to examine all the relocations looking for
   PC-relative calls to a target that is unreachable with a "bl"
   instruction.  */

bfd_boolean
elf32_m68hc11_size_stubs (output_bfd, stub_bfd, info, add_stub_section)
     bfd *output_bfd;
     bfd *stub_bfd;
     struct bfd_link_info *info;
     asection * (*add_stub_section) PARAMS ((const char *, asection *));
{
  bfd *input_bfd;
  asection *section;
  Elf_Internal_Sym *local_syms, **all_local_syms;
  unsigned int bfd_indx, bfd_count;
  bfd_size_type amt;
  asection *stub_sec;

  struct m68hc11_elf_link_hash_table *htab = m68hc11_elf_hash_table (info);

  /* Stash our params away.  */
  htab->stub_bfd = stub_bfd;
  htab->add_stub_section = add_stub_section;

  /* Count the number of input BFDs and find the top input section id.  */
  for (input_bfd = info->input_bfds, bfd_count = 0;
       input_bfd != NULL;
       input_bfd = input_bfd->link_next)
    {
      bfd_count += 1;
    }

  /* We want to read in symbol extension records only once.  To do this
     we need to read in the local symbols in parallel and save them for
     later use; so hold pointers to the local symbols in an array.  */
  amt = sizeof (Elf_Internal_Sym *) * bfd_count;
  all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt);
  if (all_local_syms == NULL)
    return FALSE;

  /* Walk over all the input BFDs, swapping in local symbols.  */
  for (input_bfd = info->input_bfds, bfd_indx = 0;
       input_bfd != NULL;
       input_bfd = input_bfd->link_next, bfd_indx++)
    {
      Elf_Internal_Shdr *symtab_hdr;
      Elf_Internal_Shdr *shndx_hdr;
      Elf_Internal_Sym *isym;
      Elf32_External_Sym *extsyms, *esym, *end_sy;
      Elf_External_Sym_Shndx *shndx_buf, *shndx;
      bfd_size_type sec_size;

      /* We'll need the symbol table in a second.  */
      symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
      if (symtab_hdr->sh_info == 0)
	continue;

      /* We need an array of the local symbols attached to the input bfd.
	 Unfortunately, we're going to have to read & swap them in.  */
      sec_size = symtab_hdr->sh_info;
      sec_size *= sizeof (Elf_Internal_Sym);
      local_syms = (Elf_Internal_Sym *) bfd_malloc (sec_size);
      if (local_syms == NULL)
	goto error_ret_free_local;

      all_local_syms[bfd_indx] = local_syms;
      sec_size = symtab_hdr->sh_info;
      sec_size *= sizeof (Elf32_External_Sym);

      /* Get the cached copy.  */
      if (symtab_hdr->contents != NULL)
        extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
      else
        {
          /* Go get them off disk.  */
          bfd_size_type amt = symtab_hdr->sh_size;
          extsyms = (Elf32_External_Sym *) bfd_malloc (amt);
          if (extsyms == NULL)
            goto error_ret_free_local;

          if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
              || bfd_bread ((PTR) extsyms, amt, input_bfd) != amt)
            {
            error_ret_free_ext_syms:
              free (extsyms);
              goto error_ret_free_local;
            }
        }
      shndx_buf = NULL;
      shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr;
      if (shndx_hdr->sh_size != 0)
        {
          bfd_size_type amt;

          amt = symtab_hdr->sh_info * sizeof (Elf_External_Sym_Shndx);
          shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
          if (shndx_buf == NULL)
            goto error_ret_free_ext_syms;
          if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0
              || bfd_bread ((PTR) shndx_buf, amt, input_bfd) != amt)
            {
              free (shndx_buf);
              goto error_ret_free_ext_syms;
            }
          shndx_hdr->contents = (PTR) shndx_buf;
        }

      /* Swap the local symbols in.  */
      for (esym = extsyms, end_sy = esym + symtab_hdr->sh_info,
	     isym = local_syms, shndx = shndx_buf;
	   esym < end_sy;
	   esym++, isym++, shndx = (shndx ? shndx + 1 : NULL))
	bfd_elf32_swap_symbol_in (input_bfd, esym, shndx, isym);

      /* Now we can free the external symbols.  */
      free (shndx_buf);
    }

  for (input_bfd = info->input_bfds, bfd_indx = 0;
       input_bfd != NULL;
       input_bfd = input_bfd->link_next, bfd_indx++)
    {
      Elf_Internal_Shdr *symtab_hdr;
      Elf_Internal_Sym *local_syms;
      struct elf_link_hash_entry ** sym_hashes;

      sym_hashes = elf_sym_hashes (input_bfd);

      /* We'll need the symbol table in a second.  */
      symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
      if (symtab_hdr->sh_info == 0)
        continue;

      local_syms = all_local_syms[bfd_indx];

      /* Walk over each section attached to the input bfd.  */
      for (section = input_bfd->sections;
           section != NULL;
           section = section->next)
        {
          Elf_Internal_Rela *internal_relocs, *irelaend, *irela;

          /* If there aren't any relocs, then there's nothing more
             to do.  */
          if ((section->flags & SEC_RELOC) == 0
              || section->reloc_count == 0)
            continue;

          /* If this section is a link-once section that will be
             discarded, then don't create any stubs.  */
          if (section->output_section == NULL
              || section->output_section->owner != output_bfd)
            continue;

          /* Get the relocs.  */
          internal_relocs
            = _bfd_elf_link_read_relocs (input_bfd, section, NULL,
					 (Elf_Internal_Rela *) NULL,
					 info->keep_memory);
          if (internal_relocs == NULL)
            goto error_ret_free_local;

          /* Now examine each relocation.  */
          irela = internal_relocs;
          irelaend = irela + section->reloc_count;
          for (; irela < irelaend; irela++)
            {
              unsigned int r_type, r_indx;
              struct elf32_m68hc11_stub_hash_entry *stub_entry;
              asection *sym_sec;
              bfd_vma sym_value;
              struct elf_link_hash_entry *hash;
              const char *stub_name;
              Elf_Internal_Sym *sym;

              r_type = ELF32_R_TYPE (irela->r_info);

              /* Only look at 16-bit relocs.  */
              if (r_type != (unsigned int) R_M68HC11_16)
                continue;

              /* Now determine the call target, its name, value,
                 section.  */
              r_indx = ELF32_R_SYM (irela->r_info);
              if (r_indx < symtab_hdr->sh_info)
                {
                  /* It's a local symbol.  */
                  Elf_Internal_Shdr *hdr;
                  bfd_boolean is_far;

                  sym = local_syms + r_indx;
                  hdr = elf_elfsections (input_bfd)[sym->st_shndx];
                  sym_sec = hdr->bfd_section;
                  is_far = (sym && (sym->st_other & STO_M68HC12_FAR));
                  if (!is_far)
                    continue;
                  stub_name = (bfd_elf_string_from_elf_section
                               (input_bfd, symtab_hdr->sh_link,
                                sym->st_name));
                  sym_value = sym->st_value;
                  hash = NULL;
                }
              else
                {
                  /* It's an external symbol.  */
                  int e_indx;

                  e_indx = r_indx - symtab_hdr->sh_info;
                  hash = (struct elf_link_hash_entry *)
                    (sym_hashes[e_indx]);

                  while (hash->root.type == bfd_link_hash_indirect
                         || hash->root.type == bfd_link_hash_warning)
                    hash = ((struct elf_link_hash_entry *)
                            hash->root.u.i.link);

                  if (hash->root.type == bfd_link_hash_defined
                      || hash->root.type == bfd_link_hash_defweak)
                    {
                      if (!(hash->other & STO_M68HC12_FAR))
                        continue;
                    }
                  else if (hash->root.type == bfd_link_hash_undefweak)
                    {
                      continue;
                    }
                  else if (hash->root.type == bfd_link_hash_undefined)
                    {
                      continue;
                    }
                  else
                    {
                      bfd_set_error (bfd_error_bad_value);
                      goto error_ret_free_internal;
                    }
                  sym_sec = hash->root.u.def.section;
                  sym_value = hash->root.u.def.value;
                  stub_name = hash->root.root.string;
                }

              if (!stub_name)
                goto error_ret_free_internal;

              stub_entry = m68hc12_stub_hash_lookup
                (htab->stub_hash_table,
                 stub_name,
                 FALSE, FALSE);
              if (stub_entry == NULL)
                {
                  if (add_stub_section == 0)
                    continue;

                  stub_entry = m68hc12_add_stub (stub_name, section, htab);
                  if (stub_entry == NULL)
                    {
                    error_ret_free_internal:
                      if (elf_section_data (section)->relocs == NULL)
                        free (internal_relocs);
                      goto error_ret_free_local;
                    }
                }

              stub_entry->target_value = sym_value;
              stub_entry->target_section = sym_sec;
            }

          /* We're done with the internal relocs, free them.  */
          if (elf_section_data (section)->relocs == NULL)
            free (internal_relocs);
        }
    }

  if (add_stub_section)
    {
      /* OK, we've added some stubs.  Find out the new size of the
         stub sections.  */
      for (stub_sec = htab->stub_bfd->sections;
           stub_sec != NULL;
           stub_sec = stub_sec->next)
        {
          stub_sec->_raw_size = 0;
          stub_sec->_cooked_size = 0;
        }

      bfd_hash_traverse (htab->stub_hash_table, htab->size_one_stub, htab);
    }
  free (htab->all_local_syms);
  return TRUE;

 error_ret_free_local:
  free (htab->all_local_syms);
  return FALSE;
}

/* Export the trampoline addresses in the symbol table.  */
static bfd_boolean
m68hc11_elf_export_one_stub (gen_entry, in_arg)
     struct bfd_hash_entry *gen_entry;
     PTR in_arg;
{
  struct bfd_link_info *info;
  struct m68hc11_elf_link_hash_table *htab;
  struct elf32_m68hc11_stub_hash_entry *stub_entry;
  char* name;
  bfd_boolean result;

  info = (struct bfd_link_info *) in_arg;
  htab = m68hc11_elf_hash_table (info);

  /* Massage our args to the form they really have.  */
  stub_entry = (struct elf32_m68hc11_stub_hash_entry *) gen_entry;

  /* Generate the trampoline according to HC11 or HC12.  */
  result = (* htab->build_one_stub) (gen_entry, in_arg);

  /* Make a printable name that does not conflict with the real function.  */
  name = alloca (strlen (stub_entry->root.string) + 16);
  sprintf (name, "tramp.%s", stub_entry->root.string);

  /* Export the symbol for debugging/disassembling.  */
  m68hc11_elf_set_symbol (htab->stub_bfd, info, name,
                          stub_entry->stub_offset,
                          stub_entry->stub_sec);
  return result;
}

/* Export a symbol or set its value and section.  */
static void
m68hc11_elf_set_symbol (abfd, info, name, value, sec)
     bfd* abfd;
     struct bfd_link_info *info;
     const char* name;
     bfd_vma value;
     asection* sec;
{
  struct elf_link_hash_entry *h;

  h = (struct elf_link_hash_entry *)
    bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE);
  if (h == NULL)
    {
      _bfd_generic_link_add_one_symbol (info, abfd,
                                        name,
                                        BSF_GLOBAL,
                                        sec,
                                        value,
                                        (const char*) NULL,
                                        TRUE, FALSE, NULL);
    }
  else
    {
      h->root.type = bfd_link_hash_defined;
      h->root.u.def.value = value;
      h->root.u.def.section = sec;
    }
}


/* Build all the stubs associated with the current output file.  The
   stubs are kept in a hash table attached to the main linker hash
   table.  This function is called via m68hc12elf_finish in the
   linker.  */

bfd_boolean
elf32_m68hc11_build_stubs (abfd, info)
     bfd* abfd;
     struct bfd_link_info *info;
{
  asection *stub_sec;
  struct bfd_hash_table *table;
  struct m68hc11_elf_link_hash_table *htab;
  struct m68hc11_scan_param param;

  m68hc11_elf_get_bank_parameters (info);
  htab = m68hc11_elf_hash_table (info);

  for (stub_sec = htab->stub_bfd->sections;
       stub_sec != NULL;
       stub_sec = stub_sec->next)
    {
      bfd_size_type size;

      /* Allocate memory to hold the linker stubs.  */
      size = stub_sec->_raw_size;
      stub_sec->contents = (unsigned char *) bfd_zalloc (htab->stub_bfd, size);
      if (stub_sec->contents == NULL && size != 0)
	return FALSE;
      stub_sec->_raw_size = 0;
    }

  /* Build the stubs as directed by the stub hash table.  */
  table = htab->stub_hash_table;
  bfd_hash_traverse (table, m68hc11_elf_export_one_stub, info);
  
  /* Scan the output sections to see if we use the memory banks.
     If so, export the symbols that define how the memory banks
     are mapped.  This is used by gdb and the simulator to obtain
     the information.  It can be used by programs to burn the eprom
     at the good addresses.  */
  param.use_memory_banks = FALSE;
  param.pinfo = &htab->pinfo;
  bfd_map_over_sections (abfd, scan_sections_for_abi, &param);
  if (param.use_memory_banks)
    {
      m68hc11_elf_set_symbol (abfd, info, BFD_M68HC11_BANK_START_NAME,
                              htab->pinfo.bank_physical,
                              bfd_abs_section_ptr);
      m68hc11_elf_set_symbol (abfd, info, BFD_M68HC11_BANK_VIRTUAL_NAME,
                              htab->pinfo.bank_virtual,
                              bfd_abs_section_ptr);
      m68hc11_elf_set_symbol (abfd, info, BFD_M68HC11_BANK_SIZE_NAME,
                              htab->pinfo.bank_size,
                              bfd_abs_section_ptr);
    }

  return TRUE;
}

void
m68hc11_elf_get_bank_parameters (info)
     struct bfd_link_info *info;
{
  unsigned i;
  struct m68hc11_page_info *pinfo;
  struct bfd_link_hash_entry *h;

  pinfo = &m68hc11_elf_hash_table (info)->pinfo;
  if (pinfo->bank_param_initialized)
    return;

  pinfo->bank_virtual = M68HC12_BANK_VIRT;
  pinfo->bank_mask = M68HC12_BANK_MASK;
  pinfo->bank_physical = M68HC12_BANK_BASE;
  pinfo->bank_shift = M68HC12_BANK_SHIFT;
  pinfo->bank_size = 1 << M68HC12_BANK_SHIFT;

  h = bfd_link_hash_lookup (info->hash, BFD_M68HC11_BANK_START_NAME,
                            FALSE, FALSE, TRUE);
  if (h != (struct bfd_link_hash_entry*) NULL
      && h->type == bfd_link_hash_defined)
    pinfo->bank_physical = (h->u.def.value
                            + h->u.def.section->output_section->vma
                            + h->u.def.section->output_offset);

  h = bfd_link_hash_lookup (info->hash, BFD_M68HC11_BANK_VIRTUAL_NAME,
                            FALSE, FALSE, TRUE);
  if (h != (struct bfd_link_hash_entry*) NULL
      && h->type == bfd_link_hash_defined)
    pinfo->bank_virtual = (h->u.def.value
                           + h->u.def.section->output_section->vma
                           + h->u.def.section->output_offset);

  h = bfd_link_hash_lookup (info->hash, BFD_M68HC11_BANK_SIZE_NAME,
                            FALSE, FALSE, TRUE);
  if (h != (struct bfd_link_hash_entry*) NULL
      && h->type == bfd_link_hash_defined)
    pinfo->bank_size = (h->u.def.value
                        + h->u.def.section->output_section->vma
                        + h->u.def.section->output_offset);

  pinfo->bank_shift = 0;
  for (i = pinfo->bank_size; i != 0; i >>= 1)
    pinfo->bank_shift++;
  pinfo->bank_shift--;
  pinfo->bank_mask = (1 << pinfo->bank_shift) - 1;
  pinfo->bank_physical_end = pinfo->bank_physical + pinfo->bank_size;
  pinfo->bank_param_initialized = 1;

  h = bfd_link_hash_lookup (info->hash, "__far_trampoline", FALSE,
                            FALSE, TRUE);
  if (h != (struct bfd_link_hash_entry*) NULL
      && h->type == bfd_link_hash_defined)
    pinfo->trampoline_addr = (h->u.def.value
                              + h->u.def.section->output_section->vma
                              + h->u.def.section->output_offset);
}

/* Return 1 if the address is in banked memory.
   This can be applied to a virtual address and to a physical address.  */
int
m68hc11_addr_is_banked (pinfo, addr)
     struct m68hc11_page_info *pinfo;
     bfd_vma addr;
{
  if (addr >= pinfo->bank_virtual)
    return 1;

  if (addr >= pinfo->bank_physical && addr <= pinfo->bank_physical_end)
    return 1;

  return 0;
}

/* Return the physical address seen by the processor, taking
   into account banked memory.  */
bfd_vma
m68hc11_phys_addr (pinfo, addr)
     struct m68hc11_page_info *pinfo;
     bfd_vma addr;
{
  if (addr < pinfo->bank_virtual)
    return addr;

  /* Map the address to the memory bank.  */
  addr -= pinfo->bank_virtual;
  addr &= pinfo->bank_mask;
  addr += pinfo->bank_physical;
  return addr;
}

/* Return the page number corresponding to an address in banked memory.  */
bfd_vma
m68hc11_phys_page (pinfo, addr)
     struct m68hc11_page_info *pinfo;
     bfd_vma addr;
{
  if (addr < pinfo->bank_virtual)
    return 0;

  /* Map the address to the memory bank.  */
  addr -= pinfo->bank_virtual;
  addr >>= pinfo->bank_shift;
  addr &= 0x0ff;
  return addr;
}

/* This function is used for relocs which are only used for relaxing,
   which the linker should otherwise ignore.  */

bfd_reloc_status_type
m68hc11_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section,
                          output_bfd, error_message)
     bfd *abfd ATTRIBUTE_UNUSED;
     arelent *reloc_entry;
     asymbol *symbol ATTRIBUTE_UNUSED;
     PTR data ATTRIBUTE_UNUSED;
     asection *input_section;
     bfd *output_bfd;
     char **error_message ATTRIBUTE_UNUSED;
{
  if (output_bfd != NULL)
    reloc_entry->address += input_section->output_offset;
  return bfd_reloc_ok;
}

bfd_reloc_status_type
m68hc11_elf_special_reloc (abfd, reloc_entry, symbol, data, input_section,
                           output_bfd, error_message)
     bfd *abfd ATTRIBUTE_UNUSED;
     arelent *reloc_entry;
     asymbol *symbol;
     PTR data ATTRIBUTE_UNUSED;
     asection *input_section;
     bfd *output_bfd;
     char **error_message ATTRIBUTE_UNUSED;
{
  if (output_bfd != (bfd *) NULL
      && (symbol->flags & BSF_SECTION_SYM) == 0
      && (! reloc_entry->howto->partial_inplace
	  || reloc_entry->addend == 0))
    {
      reloc_entry->address += input_section->output_offset;
      return bfd_reloc_ok;
    }

  if (output_bfd != NULL)
    return bfd_reloc_continue;

  if (reloc_entry->address > input_section->_cooked_size)
    return bfd_reloc_outofrange;

  abort();
}

asection *
elf32_m68hc11_gc_mark_hook (sec, info, rel, h, sym)
     asection *sec;
     struct bfd_link_info *info ATTRIBUTE_UNUSED;
     Elf_Internal_Rela *rel;
     struct elf_link_hash_entry *h;
     Elf_Internal_Sym *sym;
{
  if (h != NULL)
    {
      switch (ELF32_R_TYPE (rel->r_info))
	{
	default:
	  switch (h->root.type)
	    {
	    case bfd_link_hash_defined:
	    case bfd_link_hash_defweak:
	      return h->root.u.def.section;

	    case bfd_link_hash_common:
	      return h->root.u.c.p->section;

	    default:
	      break;
	    }
	}
    }
  else
    return bfd_section_from_elf_index (sec->owner, sym->st_shndx);

  return NULL;
}

bfd_boolean
elf32_m68hc11_gc_sweep_hook (abfd, info, sec, relocs)
     bfd *abfd ATTRIBUTE_UNUSED;
     struct bfd_link_info *info ATTRIBUTE_UNUSED;
     asection *sec ATTRIBUTE_UNUSED;
     const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
{
  /* We don't use got and plt entries for 68hc11/68hc12.  */
  return TRUE;
}

/* Look through the relocs for a section during the first phase.
   Since we don't do .gots or .plts, we just need to consider the
   virtual table relocs for gc.  */

bfd_boolean
elf32_m68hc11_check_relocs (abfd, info, sec, relocs)
     bfd * abfd;
     struct bfd_link_info * info;
     asection * sec;
     const Elf_Internal_Rela * relocs;
{
  Elf_Internal_Shdr *           symtab_hdr;
  struct elf_link_hash_entry ** sym_hashes;
  struct elf_link_hash_entry ** sym_hashes_end;
  const Elf_Internal_Rela *     rel;
  const Elf_Internal_Rela *     rel_end;

  if (info->relocateable)
    return TRUE;

  symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
  sym_hashes = elf_sym_hashes (abfd);
  sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
  if (!elf_bad_symtab (abfd))
    sym_hashes_end -= symtab_hdr->sh_info;

  rel_end = relocs + sec->reloc_count;

  for (rel = relocs; rel < rel_end; rel++)
    {
      struct elf_link_hash_entry * h;
      unsigned long r_symndx;

      r_symndx = ELF32_R_SYM (rel->r_info);

      if (r_symndx < symtab_hdr->sh_info)
        h = NULL;
      else
        h = sym_hashes [r_symndx - symtab_hdr->sh_info];

      switch (ELF32_R_TYPE (rel->r_info))
        {
        /* This relocation describes the C++ object vtable hierarchy.
           Reconstruct it for later use during GC.  */
        case R_M68HC11_GNU_VTINHERIT:
          if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
            return FALSE;
          break;

        /* This relocation describes which C++ vtable entries are actually
           used.  Record for later use during GC.  */
        case R_M68HC11_GNU_VTENTRY:
          if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
            return FALSE;
          break;
        }
    }

  return TRUE;
}

static bfd_boolean
m68hc11_get_relocation_value (abfd, info, local_sections, local_syms,
                              rel, name,
                              relocation, is_far)
     bfd *abfd;
     struct bfd_link_info *info;
     asection **local_sections;
     Elf_Internal_Sym* local_syms;
     Elf_Internal_Rela* rel;
     const char** name;
     bfd_vma* relocation;
     bfd_boolean* is_far;
{
  Elf_Internal_Shdr *symtab_hdr;
  struct elf_link_hash_entry **sym_hashes;
  unsigned long r_symndx;
  asection *sec;
  struct elf_link_hash_entry *h;
  Elf_Internal_Sym *sym;
  const char* stub_name = 0;

  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
  sym_hashes = elf_sym_hashes (abfd);

  r_symndx = ELF32_R_SYM (rel->r_info);

  /* This is a final link.  */
  h = NULL;
  sym = NULL;
  sec = NULL;
  if (r_symndx < symtab_hdr->sh_info)
    {
      sym = local_syms + r_symndx;
      sec = local_sections[r_symndx];
      *relocation = (sec->output_section->vma
                     + sec->output_offset
                     + sym->st_value);
      *is_far = (sym && (sym->st_other & STO_M68HC12_FAR));
      if (*is_far)
        stub_name = (bfd_elf_string_from_elf_section
                     (abfd, symtab_hdr->sh_link,
                      sym->st_name));
    }
  else
    {
      h = sym_hashes[r_symndx - symtab_hdr->sh_info];
      while (h->root.type == bfd_link_hash_indirect
             || h->root.type == bfd_link_hash_warning)
        h = (struct elf_link_hash_entry *) h->root.u.i.link;
      if (h->root.type == bfd_link_hash_defined
          || h->root.type == bfd_link_hash_defweak)
        {
          sec = h->root.u.def.section;
          *relocation = (h->root.u.def.value
                         + sec->output_section->vma
                         + sec->output_offset);
        }
      else if (h->root.type == bfd_link_hash_undefweak)
        *relocation = 0;
      else
        {
          if (!((*info->callbacks->undefined_symbol)
                (info, h->root.root.string, abfd,
                 sec, rel->r_offset, TRUE)))
            return FALSE;
          *relocation = 0;
        }
      *is_far = (h && (h->other & STO_M68HC12_FAR));
      stub_name = h->root.root.string;
    }

  if (h != NULL)
    *name = h->root.root.string;
  else
    {
      *name = (bfd_elf_string_from_elf_section
               (abfd, symtab_hdr->sh_link, sym->st_name));
      if (*name == NULL || **name == '\0')
        *name = bfd_section_name (input_bfd, sec);
    }

  if (*is_far && ELF32_R_TYPE (rel->r_info) == R_M68HC11_16)
    {
      struct elf32_m68hc11_stub_hash_entry* stub;
      struct m68hc11_elf_link_hash_table *htab;

      htab = m68hc11_elf_hash_table (info);
      stub = m68hc12_stub_hash_lookup (htab->stub_hash_table,
                                       *name, FALSE, FALSE);
      if (stub)
        {
          *relocation = stub->stub_offset
            + stub->stub_sec->output_section->vma
            + stub->stub_sec->output_offset;
          *is_far = FALSE;
        }
    }
  return TRUE;
}

/* Relocate a 68hc11/68hc12 ELF section.  */
bfd_boolean
elf32_m68hc11_relocate_section (output_bfd, info, input_bfd, input_section,
                                contents, relocs, local_syms, local_sections)
     bfd *output_bfd ATTRIBUTE_UNUSED;
     struct bfd_link_info *info;
     bfd *input_bfd;
     asection *input_section;
     bfd_byte *contents;
     Elf_Internal_Rela *relocs;
     Elf_Internal_Sym *local_syms;
     asection **local_sections;
{
  Elf_Internal_Shdr *symtab_hdr;
  struct elf_link_hash_entry **sym_hashes;
  Elf_Internal_Rela *rel, *relend;
  const char *name;
  struct m68hc11_page_info *pinfo;
  struct elf_backend_data * const ebd = get_elf_backend_data (input_bfd);

  symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
  sym_hashes = elf_sym_hashes (input_bfd);

  /* Get memory bank parameters.  */
  m68hc11_elf_get_bank_parameters (info);
  pinfo = &m68hc11_elf_hash_table (info)->pinfo;

  rel = relocs;
  relend = relocs + input_section->reloc_count;
  for (; rel < relend; rel++)
    {
      int r_type;
      arelent arel;
      reloc_howto_type *howto;
      unsigned long r_symndx;
      Elf_Internal_Sym *sym;
      asection *sec;
      bfd_vma relocation;
      bfd_reloc_status_type r = bfd_reloc_undefined;
      bfd_vma phys_page;
      bfd_vma phys_addr;
      bfd_vma insn_addr;
      bfd_vma insn_page;
      bfd_boolean is_far;

      r_symndx = ELF32_R_SYM (rel->r_info);
      r_type = ELF32_R_TYPE (rel->r_info);

      if (r_type == R_M68HC11_GNU_VTENTRY
          || r_type == R_M68HC11_GNU_VTINHERIT )
        continue;

      if (info->relocateable)
	{
	  /* This is a relocateable link.  We don't have to change
	     anything, unless the reloc is against a section symbol,
	     in which case we have to adjust according to where the
	     section symbol winds up in the output section.  */
	  if (r_symndx < symtab_hdr->sh_info)
	    {
	      sym = local_syms + r_symndx;
	      if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
		{
		  sec = local_sections[r_symndx];
		  rel->r_addend += sec->output_offset + sym->st_value;
		}
	    }

	  continue;
	}
      (*ebd->elf_info_to_howto_rel) (input_bfd, &arel, rel);
      howto = arel.howto;

      m68hc11_get_relocation_value (input_bfd, info,
                                    local_sections, local_syms,
                                    rel, &name, &relocation, &is_far);

      /* Do the memory bank mapping.  */
      phys_addr = m68hc11_phys_addr (pinfo, relocation + rel->r_addend);
      phys_page = m68hc11_phys_page (pinfo, relocation + rel->r_addend);
      switch (r_type)
        {
        case R_M68HC11_24:
          /* Reloc used by 68HC12 call instruction.  */
          bfd_put_16 (input_bfd, phys_addr,
                      (bfd_byte*) contents + rel->r_offset);
          bfd_put_8 (input_bfd, phys_page,
                     (bfd_byte*) contents + rel->r_offset + 2);
          r = bfd_reloc_ok;
          r_type = R_M68HC11_NONE;
          break;

        case R_M68HC11_NONE:
          r = bfd_reloc_ok;
          break;

        case R_M68HC11_LO16:
          /* Reloc generated by %addr(expr) gas to obtain the
             address as mapped in the memory bank window.  */
          relocation = phys_addr;
          break;

        case R_M68HC11_PAGE:
          /* Reloc generated by %page(expr) gas to obtain the
             page number associated with the address.  */
          relocation = phys_page;
          break;

        case R_M68HC11_16:
          /* Get virtual address of instruction having the relocation.  */
          if (is_far)
            {
              const char* msg;
              char* buf;
              msg = _("Reference to the far symbol `%s' using a wrong "
                      "relocation may result in incorrect execution");
              buf = alloca (strlen (msg) + strlen (name) + 10);
              sprintf (buf, msg, name);
              
              (* info->callbacks->warning)
                (info, buf, name, input_bfd, NULL, rel->r_offset);
            }

          /* Get virtual address of instruction having the relocation.  */
          insn_addr = input_section->output_section->vma
            + input_section->output_offset
            + rel->r_offset;

          insn_page = m68hc11_phys_page (pinfo, insn_addr);

          if (m68hc11_addr_is_banked (pinfo, relocation + rel->r_addend)
              && m68hc11_addr_is_banked (pinfo, insn_addr)
              && phys_page != insn_page)
            {
              const char* msg;
              char* buf;

              msg = _("banked address [%lx:%04lx] (%lx) is not in the same bank "
                      "as current banked address [%lx:%04lx] (%lx)");

              buf = alloca (strlen (msg) + 128);
              sprintf (buf, msg, phys_page, phys_addr,
                       (long) (relocation + rel->r_addend),
                       insn_page, m68hc11_phys_addr (pinfo, insn_addr),
                       (long) (insn_addr));
              if (!((*info->callbacks->warning)
                    (info, buf, name, input_bfd, input_section,
                     rel->r_offset)))
                return FALSE;
              break;
            }
          if (phys_page != 0 && insn_page == 0)
            {
              const char* msg;
              char* buf;

              msg = _("reference to a banked address [%lx:%04lx] in the "
                      "normal address space at %04lx");

              buf = alloca (strlen (msg) + 128);
              sprintf (buf, msg, phys_page, phys_addr, insn_addr);
              if (!((*info->callbacks->warning)
                    (info, buf, name, input_bfd, input_section,
                     insn_addr)))
                return FALSE;

              relocation = phys_addr;
              break;
            }

          /* If this is a banked address use the phys_addr so that
             we stay in the banked window.  */
          if (m68hc11_addr_is_banked (pinfo, relocation + rel->r_addend))
            relocation = phys_addr;
          break;
        }
      if (r_type != R_M68HC11_NONE)
        r = _bfd_final_link_relocate (howto, input_bfd, input_section,
                                      contents, rel->r_offset,
                                      relocation, rel->r_addend);

      if (r != bfd_reloc_ok)
	{
	  const char * msg = (const char *) 0;

	  switch (r)
	    {
	    case bfd_reloc_overflow:
	      if (!((*info->callbacks->reloc_overflow)
		    (info, name, howto->name, (bfd_vma) 0,
		     input_bfd, input_section, rel->r_offset)))
		return FALSE;
	      break;

	    case bfd_reloc_undefined:
	      if (!((*info->callbacks->undefined_symbol)
		    (info, name, input_bfd, input_section,
		     rel->r_offset, TRUE)))
		return FALSE;
	      break;

	    case bfd_reloc_outofrange:
	      msg = _ ("internal error: out of range error");
	      goto common_error;

	    case bfd_reloc_notsupported:
	      msg = _ ("internal error: unsupported relocation error");
	      goto common_error;

	    case bfd_reloc_dangerous:
	      msg = _ ("internal error: dangerous error");
	      goto common_error;

	    default:
	      msg = _ ("internal error: unknown error");
	      /* fall through */

	    common_error:
	      if (!((*info->callbacks->warning)
		    (info, msg, name, input_bfd, input_section,
		     rel->r_offset)))
		return FALSE;
	      break;
	    }
	}
    }

  return TRUE;
}



/* Set and control ELF flags in ELF header.  */

bfd_boolean
_bfd_m68hc11_elf_set_private_flags (abfd, flags)
     bfd *abfd;
     flagword flags;
{
  BFD_ASSERT (!elf_flags_init (abfd)
	      || elf_elfheader (abfd)->e_flags == flags);

  elf_elfheader (abfd)->e_flags = flags;
  elf_flags_init (abfd) = TRUE;
  return TRUE;
}

/* Merge backend specific data from an object file to the output
   object file when linking.  */

bfd_boolean
_bfd_m68hc11_elf_merge_private_bfd_data (ibfd, obfd)
     bfd *ibfd;
     bfd *obfd;
{
  flagword old_flags;
  flagword new_flags;
  bfd_boolean ok = TRUE;

  /* Check if we have the same endianess */
  if (!_bfd_generic_verify_endian_match (ibfd, obfd))
    return FALSE;

  if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
    return TRUE;

  new_flags = elf_elfheader (ibfd)->e_flags;
  elf_elfheader (obfd)->e_flags |= new_flags & EF_M68HC11_ABI;
  old_flags = elf_elfheader (obfd)->e_flags;

  if (! elf_flags_init (obfd))
    {
      elf_flags_init (obfd) = TRUE;
      elf_elfheader (obfd)->e_flags = new_flags;
      elf_elfheader (obfd)->e_ident[EI_CLASS]
	= elf_elfheader (ibfd)->e_ident[EI_CLASS];

      if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
	  && bfd_get_arch_info (obfd)->the_default)
	{
	  if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
				   bfd_get_mach (ibfd)))
	    return FALSE;
	}

      return TRUE;
    }

  /* Check ABI compatibility.  */
  if ((new_flags & E_M68HC11_I32) != (old_flags & E_M68HC11_I32))
    {
      (*_bfd_error_handler)
	(_("%s: linking files compiled for 16-bit integers (-mshort) "
           "and others for 32-bit integers"),
	 bfd_archive_filename (ibfd));
      ok = FALSE;
    }
  if ((new_flags & E_M68HC11_F64) != (old_flags & E_M68HC11_F64))
    {
      (*_bfd_error_handler)
	(_("%s: linking files compiled for 32-bit double (-fshort-double) "
           "and others for 64-bit double"),
	 bfd_archive_filename (ibfd));
      ok = FALSE;
    }

  /* Processor compatibility.  */
  if (!EF_M68HC11_CAN_MERGE_MACH (new_flags, old_flags))
    {
      (*_bfd_error_handler)
	(_("%s: linking files compiled for HCS12 with "
           "others compiled for HC12"),
	 bfd_archive_filename (ibfd));
      ok = FALSE;
    }
  new_flags = ((new_flags & ~EF_M68HC11_MACH_MASK)
               | (EF_M68HC11_MERGE_MACH (new_flags, old_flags)));

  elf_elfheader (obfd)->e_flags = new_flags;

  new_flags &= ~EF_M68HC11_ABI;
  old_flags &= ~EF_M68HC11_ABI;

  /* Warn about any other mismatches */
  if (new_flags != old_flags)
    {
      (*_bfd_error_handler)
	(_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
	 bfd_archive_filename (ibfd), (unsigned long) new_flags,
	 (unsigned long) old_flags);
      ok = FALSE;
    }

  if (! ok)
    {
      bfd_set_error (bfd_error_bad_value);
      return FALSE;
    }

  return TRUE;
}

bfd_boolean
_bfd_m68hc11_elf_print_private_bfd_data (abfd, ptr)
     bfd *abfd;
     PTR ptr;
{
  FILE *file = (FILE *) ptr;

  BFD_ASSERT (abfd != NULL && ptr != NULL);

  /* Print normal ELF private data.  */
  _bfd_elf_print_private_bfd_data (abfd, ptr);

  /* xgettext:c-format */
  fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);

  if (elf_elfheader (abfd)->e_flags & E_M68HC11_I32)
    fprintf (file, _("[abi=32-bit int, "));
  else
    fprintf (file, _("[abi=16-bit int, "));

  if (elf_elfheader (abfd)->e_flags & E_M68HC11_F64)
    fprintf (file, _("64-bit double, "));
  else
    fprintf (file, _("32-bit double, "));

  if (strcmp (bfd_get_target (abfd), "elf32-m68hc11") == 0)
    fprintf (file, _("cpu=HC11]"));
  else if (elf_elfheader (abfd)->e_flags & EF_M68HCS12_MACH)
    fprintf (file, _("cpu=HCS12]"));
  else
    fprintf (file, _("cpu=HC12]"));    

  if (elf_elfheader (abfd)->e_flags & E_M68HC12_BANKS)
    fprintf (file, _(" [memory=bank-model]"));
  else
    fprintf (file, _(" [memory=flat]"));

  fputc ('\n', file);

  return TRUE;
}

static void scan_sections_for_abi (abfd, asect, arg)
     bfd* abfd ATTRIBUTE_UNUSED;
     asection* asect;
     PTR arg;
{
  struct m68hc11_scan_param* p = (struct m68hc11_scan_param*) arg;

  if (asect->vma >= p->pinfo->bank_virtual)
    p->use_memory_banks = TRUE;
}
  
/* Tweak the OSABI field of the elf header.  */

void
elf32_m68hc11_post_process_headers (abfd, link_info)
     bfd *abfd;
     struct bfd_link_info *link_info;
{
  struct m68hc11_scan_param param;

  if (link_info == 0)
    return;

  m68hc11_elf_get_bank_parameters (link_info);

  param.use_memory_banks = FALSE;
  param.pinfo = &m68hc11_elf_hash_table (link_info)->pinfo;
  bfd_map_over_sections (abfd, scan_sections_for_abi, &param);
  if (param.use_memory_banks)
    {
      Elf_Internal_Ehdr * i_ehdrp;

      i_ehdrp = elf_elfheader (abfd);
      i_ehdrp->e_flags |= E_M68HC12_BANKS;
    }
}