bfd/versados.c

   1 /* BFD back-end for VERSAdos-E objects.
   2    Copyright (C) 1995-2018 Free Software Foundation, Inc.
   3    Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>.
   4
   5    Versados is a Motorola trademark.
   6
   7    This file is part of BFD, the Binary File Descriptor library.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  22    MA 02110-1301, USA.  */
  23
  24 /*
  25    SUBSECTION
  26    VERSAdos-E relocatable object file format
  27
  28    DESCRIPTION
  29
  30    This module supports reading of VERSAdos relocatable
  31    object files.
  32
  33    A VERSAdos file looks like contains
  34
  35    o Identification Record
  36    o External Symbol Definition Record
  37    o Object Text Record
  38    o End Record.  */
  39
  40 #include "sysdep.h"
  41 #include "bfd.h"
  42 #include "libbfd.h"
  43 #include "libiberty.h"
  44
  45
  46 #define VHEADER '1'
  47 #define VESTDEF '2'
  48 #define VOTR '3'
  49 #define VEND '4'
  50
  51 #define ES_BASE 17              /* First symbol has esdid 17.  */
  52
  53 /* Per file target dependent information.  */
  54
  55 /* One for each section.  */
  56 struct esdid
  57 {
  58   asection *section;            /* Ptr to bfd version.  */
  59   unsigned char *contents;      /* Used to build image.  */
  60   bfd_size_type content_size;   /* The size of the contents buffer.  */
  61   int pc;
  62   int relocs;                   /* Reloc count, valid end of pass 1.  */
  63   int donerel;                  /* Have relocs been translated.  */
  64 };
  65
  66 typedef struct versados_data_struct
  67 {
  68   int es_done;                  /* Count of symbol index, starts at ES_BASE.  */
  69   asymbol *symbols;             /* Pointer to local symbols.  */
  70   char *strings;                /* Strings of all the above.  */
  71   int stringlen;                /* Len of string table (valid end of pass1).  */
  72   int nsecsyms;                 /* Number of sections.  */
  73
  74   int ndefs;                    /* Number of exported symbols (they dont get esdids).  */
  75   int nrefs;                    /* Number of imported symbols  (valid end of pass1).  */
  76
  77   int ref_idx;                  /* Current processed value of the above.  */
  78   int def_idx;
  79
  80   int pass_2_done;
  81
  82   struct esdid e[16];           /* Per section info.  */
  83   int alert;                    /* To see if we're trampling.  */
  84   asymbol *rest[256 - 16];      /* Per symbol info.  */
  85 }
  86 tdata_type;
  87
  88 #define VDATA(abfd)       (abfd->tdata.versados_data)
  89 #define EDATA(abfd, n)    (abfd->tdata.versados_data->e[(n) < 16 ? (n) : 0])
  90 #define RDATA(abfd, n)    (abfd->tdata.versados_data->rest[(n) < 240 ? (n) : 0])
  91
  92 struct ext_otr
  93 {
  94   unsigned char size;
  95   char type;
  96   unsigned char map[4];
  97   unsigned char esdid;
  98   unsigned char data[200];
  99 };
 100
 101 struct ext_vheader
 102 {
 103   unsigned char size;
 104   char type;                    /* Record type.  */
 105   char name[10];                /* Module name.  */
 106   char rev;                     /* Module rev number.  */
 107   char lang;
 108   char vol[4];
 109   char user[2];
 110   char cat[8];
 111   char fname[8];
 112   char ext[2];
 113   char time[3];
 114   char date[3];
 115   char rest[211];
 116 };
 117
 118 struct ext_esd
 119 {
 120   unsigned char size;
 121   char type;
 122   unsigned char esd_entries[1];
 123 };
 124
 125 #define ESD_ABS           0
 126 #define ESD_COMMON        1
 127 #define ESD_STD_REL_SEC   2
 128 #define ESD_SHRT_REL_SEC  3
 129 #define ESD_XDEF_IN_SEC   4
 130 #define ESD_XDEF_IN_ABS   5
 131 #define ESD_XREF_SEC      6
 132 #define ESD_XREF_SYM      7
 133
 134 union ext_any
 135 {
 136   unsigned char size;
 137   struct ext_vheader header;
 138   struct ext_esd esd;
 139   struct ext_otr otr;
 140 };
 141
 142 /* Initialize by filling in the hex conversion array.  */
 143
 144 /* Set up the tdata information.  */
 145
 146 static bfd_boolean
 147 versados_mkobject (bfd *abfd)
 148 {
 149   if (abfd->tdata.versados_data == NULL)
 150     {
 151       bfd_size_type amt = sizeof (tdata_type);
 152       tdata_type *tdata = bfd_zalloc (abfd, amt);
 153
 154       if (tdata == NULL)
 155         return FALSE;
 156       abfd->tdata.versados_data = tdata;
 157       tdata->symbols = NULL;
 158       VDATA (abfd)->alert = 0x12345678;
 159     }
 160
 161   bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
 162   return TRUE;
 163 }
 164
 165 /* Report a problem in an S record file.  FIXME: This probably should
 166    not call fprintf, but we really do need some mechanism for printing
 167    error messages.  */
 168
 169 static asymbol *
 170 versados_new_symbol (bfd *abfd,
 171                      int snum,
 172                      const char *name,
 173                      bfd_vma val,
 174                      asection *sec)
 175 {
 176   asymbol *n = VDATA (abfd)->symbols + snum;
 177   n->name = name;
 178   n->value = val;
 179   n->section = sec;
 180   n->the_bfd = abfd;
 181   n->flags = 0;
 182   return n;
 183 }
 184
 185 static bfd_boolean
 186 get_record (bfd *abfd, union ext_any *ptr)
 187 {
 188   if (bfd_bread (&ptr->size, (bfd_size_type) 1, abfd) != 1
 189       || (bfd_bread ((char *) ptr + 1, (bfd_size_type) ptr->size, abfd)
 190           != ptr->size))
 191     return FALSE;
 192
 193   {
 194     bfd_size_type amt = ptr->size + 1;
 195
 196     if (amt < sizeof (* ptr))
 197       memset ((char *) ptr + amt, 0, sizeof (* ptr) - amt);
 198   }
 199
 200   return TRUE;
 201 }
 202
 203 static int
 204 get_4 (unsigned char **pp)
 205 {
 206   unsigned char *p = *pp;
 207
 208   *pp += 4;
 209   return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3] << 0);
 210 }
 211
 212 static void
 213 get_10 (unsigned char **pp, char *name)
 214 {
 215   char *p = (char *) *pp;
 216   int len = 10;
 217
 218   *pp += len;
 219   while (*p != ' ' && len)
 220     {
 221       *name++ = *p++;
 222       len--;
 223     }
 224   *name = 0;
 225 }
 226
 227 static char *
 228 new_symbol_string (bfd *abfd, const char *name)
 229 {
 230   char *n = VDATA (abfd)->strings;
 231
 232   strcpy (VDATA (abfd)->strings, name);
 233   VDATA (abfd)->strings += strlen (VDATA (abfd)->strings) + 1;
 234   return n;
 235 }
 236
 237 static void
 238 process_esd (bfd *abfd, struct ext_esd *esd, int pass)
 239 {
 240   /* Read through the ext def for the est entries.  */
 241   int togo = esd->size - 2;
 242   bfd_vma size;
 243   bfd_vma start;
 244   asection *sec;
 245   char name[11];
 246   unsigned char *ptr = esd->esd_entries;
 247   unsigned char *end = ptr + togo;
 248
 249   while (ptr < end)
 250     {
 251       int scn = *ptr & 0xf;
 252       int typ = (*ptr >> 4) & 0xf;
 253
 254       /* Declare this section.  */
 255       sprintf (name, "%d", scn);
 256       sec = bfd_make_section_old_way (abfd, strdup (name));
 257       sec->target_index = scn;
 258       EDATA (abfd, scn).section = sec;
 259       ptr++;
 260
 261       switch (typ)
 262         {
 263         default:
 264           abort ();
 265         case ESD_XREF_SEC:
 266         case ESD_XREF_SYM:
 267           {
 268             int snum = VDATA (abfd)->ref_idx++;
 269             get_10 (&ptr, name);
 270             if (pass == 1)
 271               VDATA (abfd)->stringlen += strlen (name) + 1;
 272             else
 273               {
 274                 int esidx;
 275                 asymbol *s;
 276                 char *n = new_symbol_string (abfd, name);
 277
 278                 s = versados_new_symbol (abfd, snum, n, (bfd_vma) 0,
 279                                          bfd_und_section_ptr);
 280                 esidx = VDATA (abfd)->es_done++;
 281                 RDATA (abfd, esidx - ES_BASE) = s;
 282               }
 283           }
 284           break;
 285
 286         case ESD_ABS:
 287           size = get_4 (&ptr);
 288           (void) size;
 289           start = get_4 (&ptr);
 290           (void) start;
 291           break;
 292         case ESD_STD_REL_SEC:
 293         case ESD_SHRT_REL_SEC:
 294           sec->size = get_4 (&ptr);
 295           sec->flags |= SEC_ALLOC;
 296           break;
 297         case ESD_XDEF_IN_ABS:
 298           sec = bfd_abs_section_ptr;
 299           /* Fall through.  */
 300         case ESD_XDEF_IN_SEC:
 301           {
 302             int snum = VDATA (abfd)->def_idx++;
 303             bfd_vma val;
 304
 305             get_10 (&ptr, name);
 306             val = get_4 (&ptr);
 307             if (pass == 1)
 308               /* Just remember the symbol.  */
 309               VDATA (abfd)->stringlen += strlen (name) + 1;
 310             else
 311               {
 312                 asymbol *s;
 313                 char *n = new_symbol_string (abfd, name);
 314
 315                 s = versados_new_symbol (abfd, snum + VDATA (abfd)->nrefs, n,
 316                                          val, sec);
 317                 s->flags |= BSF_GLOBAL;
 318               }
 319           }
 320           break;
 321         }
 322     }
 323 }
 324
 325 #define R_RELWORD     1
 326 #define R_RELLONG     2
 327 #define R_RELWORD_NEG 3
 328 #define R_RELLONG_NEG 4
 329
 330 reloc_howto_type versados_howto_table[] =
 331 {
 332   HOWTO (R_RELWORD, 0, 1, 16, FALSE,
 333          0, complain_overflow_dont, 0,
 334          "+v16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
 335   HOWTO (R_RELLONG, 0, 2, 32, FALSE,
 336          0, complain_overflow_dont, 0,
 337          "+v32", TRUE, 0xffffffff, 0xffffffff, FALSE),
 338
 339   HOWTO (R_RELWORD_NEG, 0, -1, 16, FALSE,
 340          0, complain_overflow_dont, 0,
 341          "-v16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
 342   HOWTO (R_RELLONG_NEG, 0, -2, 32, FALSE,
 343          0, complain_overflow_dont, 0,
 344          "-v32", TRUE, 0xffffffff, 0xffffffff, FALSE),
 345 };
 346
 347 static int
 348 get_offset (unsigned int len, unsigned char *ptr)
 349 {
 350   int val = 0;
 351
 352   if (len)
 353     {
 354       unsigned int i;
 355
 356       val = *ptr++;
 357       if (val & 0x80)
 358         val |= ~0xff;
 359       for (i = 1; i < len; i++)
 360         val = (val << 8) | *ptr++;
 361     }
 362
 363   return val;
 364 }
 365
 366 static void
 367 process_otr (bfd *abfd, struct ext_otr *otr, int pass)
 368 {
 369   unsigned long shift;
 370   unsigned char *srcp = otr->data;
 371   unsigned char *endp = (unsigned char *) otr + otr->size;
 372   unsigned int bits = (otr->map[0] << 24)
 373   | (otr->map[1] << 16)
 374   | (otr->map[2] << 8)
 375   | (otr->map[3] << 0);
 376
 377   struct esdid *esdid;
 378   unsigned char *contents;
 379   bfd_boolean need_contents = FALSE;
 380   unsigned int dst_idx;
 381
 382   /* PR 17512: file: ac7da425.  */
 383   if (otr->esdid == 0)
 384     return;
 385
 386   esdid = &EDATA (abfd, otr->esdid - 1);
 387   contents = esdid->contents;
 388   dst_idx = esdid->pc;
 389
 390   for (shift = ((unsigned long) 1 << 31); shift && srcp < endp; shift >>= 1)
 391     {
 392       if (bits & shift)
 393         {
 394           int flag = *srcp++;
 395           int esdids = (flag >> 5) & 0x7;
 396           int sizeinwords = ((flag >> 3) & 1) ? 2 : 1;
 397           unsigned int offsetlen = flag & 0x7;
 398           int j;
 399
 400           /* PR 21591: Check for invalid lengths.  */
 401           if (srcp + esdids + offsetlen >= endp)
 402             return;
 403
 404           if (esdids == 0)
 405             {
 406               /* A zero esdid means the new pc is the offset given.  */
 407               dst_idx += get_offset (offsetlen, srcp);
 408               srcp += offsetlen;
 409             }
 410           else
 411             {
 412               int val = get_offset (offsetlen, srcp + esdids);
 413
 414               if (pass == 1)
 415                 need_contents = TRUE;
 416               else if (contents && dst_idx < esdid->content_size - sizeinwords * 2)
 417                 for (j = 0; j < sizeinwords * 2; j++)
 418                   {
 419                     contents[dst_idx + (sizeinwords * 2) - j - 1] = val;
 420                     val >>= 8;
 421                   }
 422
 423               for (j = 0; j < esdids; j++)
 424                 {
 425                   int id = *srcp++;
 426
 427                   if (id)
 428                     {
 429                       int rn = EDATA (abfd, otr->esdid - 1).relocs++;
 430
 431                       if (pass == 1)
 432                         {
 433                           /* This is the first pass over the data,
 434                              just remember that we need a reloc.  */
 435                         }
 436                       else
 437                         {
 438                           arelent *n;
 439
 440                           /* PR 17512: file: 54f733e0.  */
 441                           if (EDATA (abfd, otr->esdid - 1).section == NULL)
 442                             continue;
 443                           n = EDATA (abfd, otr->esdid - 1).section->relocation + rn;
 444                           n->address = dst_idx;
 445                           n->sym_ptr_ptr = (asymbol **) (size_t) id;
 446                           n->addend = 0;
 447                           n->howto = versados_howto_table + ((j & 1) * 2) + (sizeinwords - 1);
 448                         }
 449                     }
 450                 }
 451               srcp += offsetlen;
 452               dst_idx += sizeinwords * 2;
 453             }
 454         }
 455       else
 456         {
 457           need_contents = TRUE;
 458
 459           if (esdid->section && contents && dst_idx < esdid->content_size - 1)
 460             if (pass == 2)
 461               {
 462                 /* Absolute code, comes in 16 bit lumps.  */
 463                 contents[dst_idx] = srcp[0];
 464                 contents[dst_idx + 1] = srcp[1];
 465               }
 466
 467           dst_idx += 2;
 468           srcp += 2;
 469         }
 470     }
 471
 472   EDATA (abfd, otr->esdid - 1).pc = dst_idx;
 473
 474   if (!contents && need_contents)
 475     {
 476       if (esdid->section)
 477         {
 478           bfd_size_type size;
 479
 480           size = esdid->section->size;
 481           esdid->contents = bfd_alloc (abfd, size);
 482           esdid->content_size = size;
 483         }
 484       else
 485         esdid->contents = NULL;
 486     }
 487 }
 488
 489 static bfd_boolean
 490 versados_scan (bfd *abfd)
 491 {
 492   bfd_boolean loop = TRUE;
 493   int i;
 494   int j;
 495   int nsecs = 0;
 496   bfd_size_type amt;
 497
 498   VDATA (abfd)->stringlen = 0;
 499   VDATA (abfd)->nrefs = 0;
 500   VDATA (abfd)->ndefs = 0;
 501   VDATA (abfd)->ref_idx = 0;
 502   VDATA (abfd)->def_idx = 0;
 503   VDATA (abfd)->pass_2_done = 0;
 504
 505   while (loop)
 506     {
 507       union ext_any any;
 508
 509       if (!get_record (abfd, &any))
 510         return FALSE;
 511       switch (any.header.type)
 512         {
 513         case VHEADER:
 514           break;
 515         case VEND:
 516           loop = FALSE;
 517           break;
 518         case VESTDEF:
 519           process_esd (abfd, &any.esd, 1);
 520           break;
 521         case VOTR:
 522           process_otr (abfd, &any.otr, 1);
 523           break;
 524         }
 525     }
 526
 527   /* Now allocate space for the relocs and sections.  */
 528   VDATA (abfd)->nrefs = VDATA (abfd)->ref_idx;
 529   VDATA (abfd)->ndefs = VDATA (abfd)->def_idx;
 530   VDATA (abfd)->ref_idx = 0;
 531   VDATA (abfd)->def_idx = 0;
 532
 533   abfd->symcount = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs;
 534
 535   for (i = 0; i < 16; i++)
 536     {
 537       struct esdid *esdid = &EDATA (abfd, i);
 538
 539       if (esdid->section)
 540         {
 541           amt = (bfd_size_type) esdid->relocs * sizeof (arelent);
 542           esdid->section->relocation = bfd_alloc (abfd, amt);
 543           esdid->pc = 0;
 544
 545           if (esdid->contents)
 546             esdid->section->flags |= SEC_HAS_CONTENTS | SEC_LOAD;
 547
 548           esdid->section->reloc_count = esdid->relocs;
 549           if (esdid->relocs)
 550             esdid->section->flags |= SEC_RELOC;
 551
 552           esdid->relocs = 0;
 553
 554           /* Add an entry into the symbol table for it.  */
 555           nsecs++;
 556           VDATA (abfd)->stringlen += strlen (esdid->section->name) + 1;
 557         }
 558     }
 559
 560   abfd->symcount += nsecs;
 561
 562   amt = abfd->symcount;
 563   amt *= sizeof (asymbol);
 564   VDATA (abfd)->symbols = bfd_alloc (abfd, amt);
 565
 566   amt = VDATA (abfd)->stringlen;
 567   VDATA (abfd)->strings = bfd_alloc (abfd, amt);
 568
 569   if ((VDATA (abfd)->symbols == NULL && abfd->symcount > 0)
 570       || (VDATA (abfd)->strings == NULL && VDATA (abfd)->stringlen > 0))
 571     return FALSE;
 572
 573   /* Actually fill in the section symbols,
 574      we stick them at the end of the table.  */
 575   for (j = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs, i = 0; i < 16; i++)
 576     {
 577       struct esdid *esdid = &EDATA (abfd, i);
 578       asection *sec = esdid->section;
 579
 580       if (sec)
 581         {
 582           asymbol *s = VDATA (abfd)->symbols + j;
 583           s->name = new_symbol_string (abfd, sec->name);
 584           s->section = sec;
 585           s->flags = BSF_LOCAL;
 586           s->value = 0;
 587           s->the_bfd = abfd;
 588           j++;
 589         }
 590     }
 591
 592   if (abfd->symcount)
 593     abfd->flags |= HAS_SYMS;
 594
 595   /* Set this to nsecs - since we've already planted the section
 596      symbols.  */
 597   VDATA (abfd)->nsecsyms = nsecs;
 598
 599   VDATA (abfd)->ref_idx = 0;
 600
 601   return TRUE;
 602 }
 603
 604 /* Check whether an existing file is a versados  file.  */
 605
 606 static const bfd_target *
 607 versados_object_p (bfd *abfd)
 608 {
 609   struct ext_vheader ext;
 610   unsigned char len;
 611   tdata_type *tdata_save;
 612
 613   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
 614     return NULL;
 615
 616   if (bfd_bread (&len, (bfd_size_type) 1, abfd) != 1)
 617     {
 618       if (bfd_get_error () != bfd_error_system_call)
 619         bfd_set_error (bfd_error_wrong_format);
 620       return NULL;
 621     }
 622
 623   /* PR 17512: file: 726-2128-0.004.  */
 624   if (len < 13)
 625     {
 626       bfd_set_error (bfd_error_wrong_format);
 627       return NULL;
 628     }
 629
 630   if (bfd_bread (&ext.type, (bfd_size_type) len, abfd) != len)
 631     {
 632       if (bfd_get_error () != bfd_error_system_call)
 633         bfd_set_error (bfd_error_wrong_format);
 634       return NULL;
 635     }
 636
 637   /* We guess that the language field will never be larger than 10.
 638      In sample files, it is always either 0 or 1.  Checking for this
 639      prevents confusion with Intel Hex files.  */
 640   if (ext.type != VHEADER
 641       || ext.lang > 10)
 642     {
 643       bfd_set_error (bfd_error_wrong_format);
 644       return NULL;
 645     }
 646
 647   /* OK, looks like a record, build the tdata and read in.  */
 648   tdata_save = abfd->tdata.versados_data;
 649   if (!versados_mkobject (abfd) || !versados_scan (abfd))
 650     {
 651       abfd->tdata.versados_data = tdata_save;
 652       return NULL;
 653     }
 654
 655   return abfd->xvec;
 656 }
 657
 658 static bfd_boolean
 659 versados_pass_2 (bfd *abfd)
 660 {
 661   union ext_any any;
 662
 663   if (VDATA (abfd)->pass_2_done)
 664     return 1;
 665
 666   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
 667     return 0;
 668
 669   VDATA (abfd)->es_done = ES_BASE;
 670
 671   /* Read records till we get to where we want to be.  */
 672   while (1)
 673     {
 674       get_record (abfd, &any);
 675       switch (any.header.type)
 676         {
 677         case VEND:
 678           VDATA (abfd)->pass_2_done = 1;
 679           return 1;
 680         case VESTDEF:
 681           process_esd (abfd, &any.esd, 2);
 682           break;
 683         case VOTR:
 684           process_otr (abfd, &any.otr, 2);
 685           break;
 686         }
 687     }
 688 }
 689
 690 static bfd_boolean
 691 versados_get_section_contents (bfd *abfd,
 692                                asection *section,
 693                                void * location,
 694                                file_ptr offset,
 695                                bfd_size_type count)
 696 {
 697   struct esdid *esdid;
 698
 699   if (!versados_pass_2 (abfd))
 700     return FALSE;
 701
 702   esdid = &EDATA (abfd, section->target_index);
 703
 704   if (esdid->contents == NULL
 705       || offset < 0
 706       || (bfd_size_type) offset > esdid->content_size
 707       || offset + count > esdid->content_size)
 708     return FALSE;
 709
 710   memcpy (location, esdid->contents + offset, (size_t) count);
 711
 712   return TRUE;
 713 }
 714
 715 #define versados_get_section_contents_in_window \
 716   _bfd_generic_get_section_contents_in_window
 717
 718 static bfd_boolean
 719 versados_set_section_contents (bfd *abfd ATTRIBUTE_UNUSED,
 720                                sec_ptr section ATTRIBUTE_UNUSED,
 721                                const void * location ATTRIBUTE_UNUSED,
 722                                file_ptr offset ATTRIBUTE_UNUSED,
 723                                bfd_size_type bytes_to_do ATTRIBUTE_UNUSED)
 724 {
 725   return FALSE;
 726 }
 727
 728 static int
 729 versados_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
 730                          struct bfd_link_info *info ATTRIBUTE_UNUSED)
 731 {
 732   return 0;
 733 }
 734
 735 /* Return the amount of memory needed to read the symbol table.  */
 736
 737 static long
 738 versados_get_symtab_upper_bound (bfd *abfd)
 739 {
 740   return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
 741 }
 742
 743 /* Return the symbol table.  */
 744
 745 static long
 746 versados_canonicalize_symtab (bfd *abfd, asymbol **alocation)
 747 {
 748   unsigned int symcount = bfd_get_symcount (abfd);
 749   unsigned int i;
 750   asymbol *s;
 751
 752   versados_pass_2 (abfd);
 753
 754   for (i = 0, s = VDATA (abfd)->symbols;
 755        i < symcount;
 756        s++, i++)
 757     *alocation++ = s;
 758
 759   *alocation = NULL;
 760
 761   return symcount;
 762 }
 763
 764 static void
 765 versados_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
 766                           asymbol *symbol,
 767                           symbol_info *ret)
 768 {
 769   bfd_symbol_info (symbol, ret);
 770 }
 771
 772 static void
 773 versados_print_symbol (bfd *abfd,
 774                        void * afile,
 775                        asymbol *symbol,
 776                        bfd_print_symbol_type how)
 777 {
 778   FILE *file = (FILE *) afile;
 779
 780   switch (how)
 781     {
 782     case bfd_print_symbol_name:
 783       fprintf (file, "%s", symbol->name);
 784       break;
 785     default:
 786       bfd_print_symbol_vandf (abfd, (void *) file, symbol);
 787       fprintf (file, " %-5s %s",
 788                symbol->section->name,
 789                symbol->name);
 790     }
 791 }
 792
 793 static long
 794 versados_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
 795                                 sec_ptr asect)
 796 {
 797   return (asect->reloc_count + 1) * sizeof (arelent *);
 798 }
 799
 800 static long
 801 versados_canonicalize_reloc (bfd *abfd,
 802                              sec_ptr section,
 803                              arelent **relptr,
 804                              asymbol **symbols)
 805 {
 806   unsigned int count;
 807   arelent *src;
 808
 809   versados_pass_2 (abfd);
 810   src = section->relocation;
 811
 812   if (!EDATA (abfd, section->target_index).donerel)
 813     {
 814       EDATA (abfd, section->target_index).donerel = 1;
 815       /* Translate from indexes to symptr ptrs.  */
 816       for (count = 0; count < section->reloc_count; count++)
 817         {
 818           int esdid = (int) (size_t) src[count].sym_ptr_ptr;
 819
 820           if (esdid == 0)
 821             src[count].sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
 822           else if (esdid < ES_BASE)
 823             {
 824               /* Section relative thing.  */
 825               struct esdid *e = &EDATA (abfd, esdid - 1);
 826
 827               /* PR 17512: file:cd92277c.  */
 828               if (e->section)
 829                 src[count].sym_ptr_ptr = e->section->symbol_ptr_ptr;
 830               else
 831                 src[count].sym_ptr_ptr = bfd_und_section_ptr->symbol_ptr_ptr;
 832             }
 833           /* PR 17512: file:3757-2936-0.004.  */
 834           else if ((unsigned) (esdid - ES_BASE) >= bfd_get_symcount (abfd))
 835             src[count].sym_ptr_ptr = bfd_und_section_ptr->symbol_ptr_ptr;
 836           else
 837             src[count].sym_ptr_ptr = symbols + esdid - ES_BASE;
 838         }
 839     }
 840
 841   for (count = 0; count < section->reloc_count; count++)
 842     *relptr++ = src++;
 843
 844   *relptr = 0;
 845   return section->reloc_count;
 846 }
 847
 848 #define versados_close_and_cleanup                    _bfd_generic_close_and_cleanup
 849 #define versados_bfd_free_cached_info                 _bfd_generic_bfd_free_cached_info
 850 #define versados_new_section_hook                     _bfd_generic_new_section_hook
 851 #define versados_bfd_is_target_special_symbol   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
 852 #define versados_bfd_is_local_label_name              bfd_generic_is_local_label_name
 853 #define versados_get_lineno                           _bfd_nosymbols_get_lineno
 854 #define versados_find_nearest_line                    _bfd_nosymbols_find_nearest_line
 855 #define versados_find_line                            _bfd_nosymbols_find_line
 856 #define versados_find_inliner_info                    _bfd_nosymbols_find_inliner_info
 857 #define versados_get_symbol_version_string            _bfd_nosymbols_get_symbol_version_string
 858 #define versados_make_empty_symbol                    _bfd_generic_make_empty_symbol
 859 #define versados_bfd_make_debug_symbol                _bfd_nosymbols_bfd_make_debug_symbol
 860 #define versados_read_minisymbols                     _bfd_generic_read_minisymbols
 861 #define versados_minisymbol_to_symbol                 _bfd_generic_minisymbol_to_symbol
 862 #define versados_bfd_reloc_type_lookup                _bfd_norelocs_bfd_reloc_type_lookup
 863 #define versados_bfd_reloc_name_lookup          _bfd_norelocs_bfd_reloc_name_lookup
 864 #define versados_set_arch_mach                        bfd_default_set_arch_mach
 865 #define versados_bfd_get_relocated_section_contents   bfd_generic_get_relocated_section_contents
 866 #define versados_bfd_relax_section                    bfd_generic_relax_section
 867 #define versados_bfd_gc_sections                      bfd_generic_gc_sections
 868 #define versados_bfd_lookup_section_flags             bfd_generic_lookup_section_flags
 869 #define versados_bfd_merge_sections                   bfd_generic_merge_sections
 870 #define versados_bfd_is_group_section                 bfd_generic_is_group_section
 871 #define versados_bfd_discard_group                    bfd_generic_discard_group
 872 #define versados_section_already_linked               _bfd_generic_section_already_linked
 873 #define versados_bfd_define_common_symbol             bfd_generic_define_common_symbol
 874 #define versados_bfd_define_start_stop                bfd_generic_define_start_stop
 875 #define versados_bfd_link_hash_table_create           _bfd_generic_link_hash_table_create
 876 #define versados_bfd_link_add_symbols                 _bfd_generic_link_add_symbols
 877 #define versados_bfd_link_just_syms                   _bfd_generic_link_just_syms
 878 #define versados_bfd_copy_link_hash_symbol_type \
 879   _bfd_generic_copy_link_hash_symbol_type
 880 #define versados_bfd_final_link                       _bfd_generic_final_link
 881 #define versados_bfd_link_split_section               _bfd_generic_link_split_section
 882 #define versados_bfd_link_check_relocs                _bfd_generic_link_check_relocs
 883 #define versados_set_reloc                            _bfd_generic_set_reloc
 884
 885 const bfd_target m68k_versados_vec =
 886 {
 887   "versados",                   /* Name.  */
 888   bfd_target_versados_flavour,
 889   BFD_ENDIAN_BIG,               /* Target byte order.  */
 890   BFD_ENDIAN_BIG,               /* Target headers byte order.  */
 891   (HAS_RELOC | EXEC_P |         /* Object flags.  */
 892    HAS_LINENO | HAS_DEBUG |
 893    HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
 894   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
 895    | SEC_ALLOC | SEC_LOAD | SEC_RELOC),         /* Section flags.  */
 896   0,                            /* Leading underscore.  */
 897   ' ',                          /* AR_pad_char.  */
 898   16,                           /* AR_max_namelen.  */
 899   0,                            /* match priority.  */
 900   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 901   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 902   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Data.  */
 903   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 904   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 905   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Headers.  */
 906
 907   {
 908     _bfd_dummy_target,
 909     versados_object_p,          /* bfd_check_format.  */
 910     _bfd_dummy_target,
 911     _bfd_dummy_target,
 912   },
 913   {
 914     bfd_false,
 915     versados_mkobject,
 916     _bfd_generic_mkarchive,
 917     bfd_false,
 918   },
 919   {                             /* bfd_write_contents.  */
 920     bfd_false,
 921     bfd_false,
 922     _bfd_write_archive_contents,
 923     bfd_false,
 924   },
 925
 926   BFD_JUMP_TABLE_GENERIC (versados),
 927   BFD_JUMP_TABLE_COPY (_bfd_generic),
 928   BFD_JUMP_TABLE_CORE (_bfd_nocore),
 929   BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
 930   BFD_JUMP_TABLE_SYMBOLS (versados),
 931   BFD_JUMP_TABLE_RELOCS (versados),
 932   BFD_JUMP_TABLE_WRITE (versados),
 933   BFD_JUMP_TABLE_LINK (versados),
 934   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 935
 936   NULL,
 937
 938   NULL
 939 };