bfd/versados.c

   1 /* BFD back-end for VERSAdos-E objects.
   2    Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   3    2006, 2007 Free Software Foundation, Inc.
   4    Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>.
   5
   6    Versados is a Motorola trademark.
   7
   8    This file is part of BFD, the Binary File Descriptor library.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  23    MA 02110-1301, USA.  */
  24
  25 /*
  26    SUBSECTION
  27    VERSAdos-E relocatable object file format
  28
  29    DESCRIPTION
  30
  31    This module supports reading of VERSAdos relocatable
  32    object files.
  33
  34    A VERSAdos file looks like contains
  35
  36    o Identification Record
  37    o External Symbol Definition Record
  38    o Object Text Record
  39    o End Record.  */
  40
  41 #include "sysdep.h"
  42 #include "bfd.h"
  43 #include "libbfd.h"
  44 #include "libiberty.h"
  45
  46
  47 #define VHEADER '1'
  48 #define VESTDEF '2'
  49 #define VOTR '3'
  50 #define VEND '4'
  51
  52 #define ES_BASE 17              /* First symbol has esdid 17.  */
  53
  54 /* Per file target dependent information.  */
  55
  56 /* One for each section.  */
  57 struct esdid
  58 {
  59   asection *section;            /* Ptr to bfd version.  */
  60   unsigned char *contents;      /* Used to build image.  */
  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])
  90 #define RDATA(abfd, n)    (abfd->tdata.versados_data->rest[n])
  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_alloc (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 int
 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 0;
 192   return 1;
 193 }
 194
 195 static int
 196 get_4 (unsigned char **pp)
 197 {
 198   unsigned char *p = *pp;
 199
 200   *pp += 4;
 201   return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3] << 0);
 202 }
 203
 204 static void
 205 get_10 (unsigned char **pp, char *name)
 206 {
 207   char *p = (char *) *pp;
 208   int len = 10;
 209
 210   *pp += len;
 211   while (*p != ' ' && len)
 212     {
 213       *name++ = *p++;
 214       len--;
 215     }
 216   *name = 0;
 217 }
 218
 219 static char *
 220 new_symbol_string (bfd *abfd, const char *name)
 221 {
 222   char *n = VDATA (abfd)->strings;
 223
 224   strcpy (VDATA (abfd)->strings, name);
 225   VDATA (abfd)->strings += strlen (VDATA (abfd)->strings) + 1;
 226   return n;
 227 }
 228
 229 static void
 230 process_esd (bfd *abfd, struct ext_esd *esd, int pass)
 231 {
 232   /* Read through the ext def for the est entries.  */
 233   int togo = esd->size - 2;
 234   bfd_vma size;
 235   bfd_vma start;
 236   asection *sec;
 237   char name[11];
 238   unsigned char *ptr = esd->esd_entries;
 239   unsigned char *end = ptr + togo;
 240
 241   while (ptr < end)
 242     {
 243       int scn = *ptr & 0xf;
 244       int typ = (*ptr >> 4) & 0xf;
 245
 246       /* Declare this section.  */
 247       sprintf (name, "%d", scn);
 248       sec = bfd_make_section_old_way (abfd, strdup (name));
 249       sec->target_index = scn;
 250       EDATA (abfd, scn).section = sec;
 251       ptr++;
 252
 253       switch (typ)
 254         {
 255         default:
 256           abort ();
 257         case ESD_XREF_SEC:
 258         case ESD_XREF_SYM:
 259           {
 260             int snum = VDATA (abfd)->ref_idx++;
 261             get_10 (&ptr, name);
 262             if (pass == 1)
 263               VDATA (abfd)->stringlen += strlen (name) + 1;
 264             else
 265               {
 266                 int esidx;
 267                 asymbol *s;
 268                 char *n = new_symbol_string (abfd, name);
 269
 270                 s = versados_new_symbol (abfd, snum, n, (bfd_vma) 0,
 271                                          bfd_und_section_ptr);
 272                 esidx = VDATA (abfd)->es_done++;
 273                 RDATA (abfd, esidx - ES_BASE) = s;
 274               }
 275           }
 276           break;
 277
 278         case ESD_ABS:
 279           size = get_4 (&ptr);
 280           start = get_4 (&ptr);
 281           break;
 282         case ESD_STD_REL_SEC:
 283         case ESD_SHRT_REL_SEC:
 284           sec->size = get_4 (&ptr);
 285           sec->flags |= SEC_ALLOC;
 286           break;
 287         case ESD_XDEF_IN_ABS:
 288           sec = (asection *) & bfd_abs_section;
 289         case ESD_XDEF_IN_SEC:
 290           {
 291             int snum = VDATA (abfd)->def_idx++;
 292             bfd_vma val;
 293
 294             get_10 (&ptr, name);
 295             val = get_4 (&ptr);
 296             if (pass == 1)
 297               /* Just remember the symbol.  */
 298               VDATA (abfd)->stringlen += strlen (name) + 1;
 299             else
 300               {
 301                 asymbol *s;
 302                 char *n = new_symbol_string (abfd, name);
 303
 304                 s = versados_new_symbol (abfd, snum + VDATA (abfd)->nrefs, n,
 305                                          val, sec);
 306                 s->flags |= BSF_GLOBAL;
 307               }
 308           }
 309           break;
 310         }
 311     }
 312 }
 313
 314 #define R_RELWORD     1
 315 #define R_RELLONG     2
 316 #define R_RELWORD_NEG 3
 317 #define R_RELLONG_NEG 4
 318
 319 reloc_howto_type versados_howto_table[] =
 320 {
 321   HOWTO (R_RELWORD, 0, 1, 16, FALSE,
 322          0, complain_overflow_dont, 0,
 323          "+v16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
 324   HOWTO (R_RELLONG, 0, 2, 32, FALSE,
 325          0, complain_overflow_dont, 0,
 326          "+v32", TRUE, 0xffffffff, 0xffffffff, FALSE),
 327
 328   HOWTO (R_RELWORD_NEG, 0, -1, 16, FALSE,
 329          0, complain_overflow_dont, 0,
 330          "-v16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
 331   HOWTO (R_RELLONG_NEG, 0, -2, 32, FALSE,
 332          0, complain_overflow_dont, 0,
 333          "-v32", TRUE, 0xffffffff, 0xffffffff, FALSE),
 334 };
 335
 336 static int
 337 get_offset (int len, unsigned char *ptr)
 338 {
 339   int val = 0;
 340
 341   if (len)
 342     {
 343       int i;
 344
 345       val = *ptr++;
 346       if (val & 0x80)
 347         val |= ~0xff;
 348       for (i = 1; i < len; i++)
 349         val = (val << 8) | *ptr++;
 350     }
 351
 352   return val;
 353 }
 354
 355 static void
 356 process_otr (bfd *abfd, struct ext_otr *otr, int pass)
 357 {
 358   unsigned long shift;
 359   unsigned char *srcp = otr->data;
 360   unsigned char *endp = (unsigned char *) otr + otr->size;
 361   unsigned int bits = (otr->map[0] << 24)
 362   | (otr->map[1] << 16)
 363   | (otr->map[2] << 8)
 364   | (otr->map[3] << 0);
 365
 366   struct esdid *esdid = &EDATA (abfd, otr->esdid - 1);
 367   unsigned char *contents = esdid->contents;
 368   int need_contents = 0;
 369   unsigned int dst_idx = esdid->pc;
 370
 371   for (shift = ((unsigned long) 1 << 31); shift && srcp < endp; shift >>= 1)
 372     {
 373       if (bits & shift)
 374         {
 375           int flag = *srcp++;
 376           int esdids = (flag >> 5) & 0x7;
 377           int sizeinwords = ((flag >> 3) & 1) ? 2 : 1;
 378           int offsetlen = flag & 0x7;
 379           int j;
 380
 381           if (esdids == 0)
 382             {
 383               /* A zero esdid means the new pc is the offset given.  */
 384               dst_idx += get_offset (offsetlen, srcp);
 385               srcp += offsetlen;
 386             }
 387           else
 388             {
 389               int val = get_offset (offsetlen, srcp + esdids);
 390
 391               if (pass == 1)
 392                 need_contents = 1;
 393               else
 394                 for (j = 0; j < sizeinwords * 2; j++)
 395                   {
 396                     contents[dst_idx + (sizeinwords * 2) - j - 1] = val;
 397                     val >>= 8;
 398                   }
 399
 400               for (j = 0; j < esdids; j++)
 401                 {
 402                   int esdid = *srcp++;
 403
 404                   if (esdid)
 405                     {
 406                       int rn = EDATA (abfd, otr->esdid - 1).relocs++;
 407
 408                       if (pass == 1)
 409                         {
 410                           /* This is the first pass over the data,
 411                              just remember that we need a reloc.  */
 412                         }
 413                       else
 414                         {
 415                           arelent *n =
 416                           EDATA (abfd, otr->esdid - 1).section->relocation + rn;
 417                           n->address = dst_idx;
 418
 419                           n->sym_ptr_ptr = (asymbol **) (size_t) esdid;
 420                           n->addend = 0;
 421                           n->howto = versados_howto_table + ((j & 1) * 2) + (sizeinwords - 1);
 422                         }
 423                     }
 424                 }
 425               srcp += offsetlen;
 426               dst_idx += sizeinwords * 2;
 427             }
 428         }
 429       else
 430         {
 431           need_contents = 1;
 432           if (dst_idx < esdid->section->size)
 433             if (pass == 2)
 434               {
 435                 /* Absolute code, comes in 16 bit lumps.  */
 436                 contents[dst_idx] = srcp[0];
 437                 contents[dst_idx + 1] = srcp[1];
 438               }
 439           dst_idx += 2;
 440           srcp += 2;
 441         }
 442     }
 443   EDATA (abfd, otr->esdid - 1).pc = dst_idx;
 444
 445   if (!contents && need_contents)
 446     {
 447       bfd_size_type size = esdid->section->size;
 448       esdid->contents = bfd_alloc (abfd, size);
 449     }
 450 }
 451
 452 static bfd_boolean
 453 versados_scan (bfd *abfd)
 454 {
 455   int loop = 1;
 456   int i;
 457   int j;
 458   int nsecs = 0;
 459   bfd_size_type amt;
 460
 461   VDATA (abfd)->stringlen = 0;
 462   VDATA (abfd)->nrefs = 0;
 463   VDATA (abfd)->ndefs = 0;
 464   VDATA (abfd)->ref_idx = 0;
 465   VDATA (abfd)->def_idx = 0;
 466   VDATA (abfd)->pass_2_done = 0;
 467
 468   while (loop)
 469     {
 470       union ext_any any;
 471
 472       if (!get_record (abfd, &any))
 473         return TRUE;
 474       switch (any.header.type)
 475         {
 476         case VHEADER:
 477           break;
 478         case VEND:
 479           loop = 0;
 480           break;
 481         case VESTDEF:
 482           process_esd (abfd, &any.esd, 1);
 483           break;
 484         case VOTR:
 485           process_otr (abfd, &any.otr, 1);
 486           break;
 487         }
 488     }
 489
 490   /* Now allocate space for the relocs and sections.  */
 491   VDATA (abfd)->nrefs = VDATA (abfd)->ref_idx;
 492   VDATA (abfd)->ndefs = VDATA (abfd)->def_idx;
 493   VDATA (abfd)->ref_idx = 0;
 494   VDATA (abfd)->def_idx = 0;
 495
 496   abfd->symcount = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs;
 497
 498   for (i = 0; i < 16; i++)
 499     {
 500       struct esdid *esdid = &EDATA (abfd, i);
 501
 502       if (esdid->section)
 503         {
 504           amt = (bfd_size_type) esdid->relocs * sizeof (arelent);
 505           esdid->section->relocation = bfd_alloc (abfd, amt);
 506
 507           esdid->pc = 0;
 508
 509           if (esdid->contents)
 510             esdid->section->flags |= SEC_HAS_CONTENTS | SEC_LOAD;
 511
 512           esdid->section->reloc_count = esdid->relocs;
 513           if (esdid->relocs)
 514             esdid->section->flags |= SEC_RELOC;
 515
 516           esdid->relocs = 0;
 517
 518           /* Add an entry into the symbol table for it.  */
 519           nsecs++;
 520           VDATA (abfd)->stringlen += strlen (esdid->section->name) + 1;
 521         }
 522     }
 523
 524   abfd->symcount += nsecs;
 525
 526   amt = abfd->symcount;
 527   amt *= sizeof (asymbol);
 528   VDATA (abfd)->symbols = bfd_alloc (abfd, amt);
 529
 530   amt = VDATA (abfd)->stringlen;
 531   VDATA (abfd)->strings = bfd_alloc (abfd, amt);
 532
 533   if ((VDATA (abfd)->symbols == NULL && abfd->symcount > 0)
 534       || (VDATA (abfd)->strings == NULL && VDATA (abfd)->stringlen > 0))
 535     return FALSE;
 536
 537   /* Actually fill in the section symbols,
 538      we stick them at the end of the table.  */
 539   for (j = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs, i = 0; i < 16; i++)
 540     {
 541       struct esdid *esdid = &EDATA (abfd, i);
 542       asection *sec = esdid->section;
 543
 544       if (sec)
 545         {
 546           asymbol *s = VDATA (abfd)->symbols + j;
 547           s->name = new_symbol_string (abfd, sec->name);
 548           s->section = sec;
 549           s->flags = BSF_LOCAL;
 550           s->value = 0;
 551           s->the_bfd = abfd;
 552           j++;
 553         }
 554     }
 555
 556   if (abfd->symcount)
 557     abfd->flags |= HAS_SYMS;
 558
 559   /* Set this to nsecs - since we've already planted the section
 560      symbols.  */
 561   VDATA (abfd)->nsecsyms = nsecs;
 562
 563   VDATA (abfd)->ref_idx = 0;
 564
 565   return 1;
 566 }
 567
 568 /* Check whether an existing file is a versados  file.  */
 569
 570 static const bfd_target *
 571 versados_object_p (bfd *abfd)
 572 {
 573   struct ext_vheader ext;
 574   unsigned char len;
 575   tdata_type *tdata_save;
 576
 577   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
 578     return NULL;
 579
 580   if (bfd_bread (&len, (bfd_size_type) 1, abfd) != 1)
 581     {
 582       if (bfd_get_error () != bfd_error_system_call)
 583         bfd_set_error (bfd_error_wrong_format);
 584       return NULL;
 585     }
 586
 587   if (bfd_bread (&ext.type, (bfd_size_type) len, abfd) != len)
 588     {
 589       if (bfd_get_error () != bfd_error_system_call)
 590         bfd_set_error (bfd_error_wrong_format);
 591       return NULL;
 592     }
 593
 594   /* We guess that the language field will never be larger than 10.
 595      In sample files, it is always either 0 or 1.  Checking for this
 596      prevents confusion with Intel Hex files.  */
 597   if (ext.type != VHEADER
 598       || ext.lang > 10)
 599     {
 600       bfd_set_error (bfd_error_wrong_format);
 601       return NULL;
 602     }
 603
 604   /* OK, looks like a record, build the tdata and read in.  */
 605   tdata_save = abfd->tdata.versados_data;
 606   if (!versados_mkobject (abfd) || !versados_scan (abfd))
 607     {
 608       abfd->tdata.versados_data = tdata_save;
 609       return NULL;
 610     }
 611
 612   return abfd->xvec;
 613 }
 614
 615 static bfd_boolean
 616 versados_pass_2 (bfd *abfd)
 617 {
 618   union ext_any any;
 619
 620   if (VDATA (abfd)->pass_2_done)
 621     return 1;
 622
 623   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
 624     return 0;
 625
 626   VDATA (abfd)->es_done = ES_BASE;
 627
 628   /* Read records till we get to where we want to be.  */
 629   while (1)
 630     {
 631       get_record (abfd, &any);
 632       switch (any.header.type)
 633         {
 634         case VEND:
 635           VDATA (abfd)->pass_2_done = 1;
 636           return 1;
 637         case VESTDEF:
 638           process_esd (abfd, &any.esd, 2);
 639           break;
 640         case VOTR:
 641           process_otr (abfd, &any.otr, 2);
 642           break;
 643         }
 644     }
 645 }
 646
 647 static bfd_boolean
 648 versados_get_section_contents (bfd *abfd,
 649                                asection *section,
 650                                void * location,
 651                                file_ptr offset,
 652                                bfd_size_type count)
 653 {
 654   if (!versados_pass_2 (abfd))
 655     return FALSE;
 656
 657   memcpy (location,
 658           EDATA (abfd, section->target_index).contents + offset,
 659           (size_t) count);
 660
 661   return TRUE;
 662 }
 663
 664 #define versados_get_section_contents_in_window \
 665   _bfd_generic_get_section_contents_in_window
 666
 667 static bfd_boolean
 668 versados_set_section_contents (bfd *abfd ATTRIBUTE_UNUSED,
 669                                sec_ptr section ATTRIBUTE_UNUSED,
 670                                const void * location ATTRIBUTE_UNUSED,
 671                                file_ptr offset ATTRIBUTE_UNUSED,
 672                                bfd_size_type bytes_to_do ATTRIBUTE_UNUSED)
 673 {
 674   return FALSE;
 675 }
 676
 677 static int
 678 versados_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
 679                          struct bfd_link_info *info ATTRIBUTE_UNUSED)
 680 {
 681   return 0;
 682 }
 683
 684 /* Return the amount of memory needed to read the symbol table.  */
 685
 686 static long
 687 versados_get_symtab_upper_bound (bfd *abfd)
 688 {
 689   return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
 690 }
 691
 692 /* Return the symbol table.  */
 693
 694 static long
 695 versados_canonicalize_symtab (bfd *abfd, asymbol **alocation)
 696 {
 697   unsigned int symcount = bfd_get_symcount (abfd);
 698   unsigned int i;
 699   asymbol *s;
 700
 701   versados_pass_2 (abfd);
 702
 703   for (i = 0, s = VDATA (abfd)->symbols;
 704        i < symcount;
 705        s++, i++)
 706     *alocation++ = s;
 707
 708   *alocation = NULL;
 709
 710   return symcount;
 711 }
 712
 713 static void
 714 versados_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
 715                           asymbol *symbol,
 716                           symbol_info *ret)
 717 {
 718   bfd_symbol_info (symbol, ret);
 719 }
 720
 721 static void
 722 versados_print_symbol (bfd *abfd,
 723                        void * afile,
 724                        asymbol *symbol,
 725                        bfd_print_symbol_type how)
 726 {
 727   FILE *file = (FILE *) afile;
 728
 729   switch (how)
 730     {
 731     case bfd_print_symbol_name:
 732       fprintf (file, "%s", symbol->name);
 733       break;
 734     default:
 735       bfd_print_symbol_vandf (abfd, (void *) file, symbol);
 736       fprintf (file, " %-5s %s",
 737                symbol->section->name,
 738                symbol->name);
 739     }
 740 }
 741
 742 static long
 743 versados_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
 744                                 sec_ptr asect)
 745 {
 746   return (asect->reloc_count + 1) * sizeof (arelent *);
 747 }
 748
 749 static long
 750 versados_canonicalize_reloc (bfd *abfd,
 751                              sec_ptr section,
 752                              arelent **relptr,
 753                              asymbol **symbols)
 754 {
 755   unsigned int count;
 756   arelent *src;
 757
 758   versados_pass_2 (abfd);
 759   src = section->relocation;
 760   if (!EDATA (abfd, section->target_index).donerel)
 761     {
 762       EDATA (abfd, section->target_index).donerel = 1;
 763       /* Translate from indexes to symptr ptrs.  */
 764       for (count = 0; count < section->reloc_count; count++)
 765         {
 766           int esdid = (int) (size_t) src[count].sym_ptr_ptr;
 767
 768           if (esdid == 0)
 769             src[count].sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
 770           else if (esdid < ES_BASE)
 771             {
 772               /* Section relative thing.  */
 773               struct esdid *e = &EDATA (abfd, esdid - 1);
 774
 775               src[count].sym_ptr_ptr = e->section->symbol_ptr_ptr;
 776             }
 777           else
 778             src[count].sym_ptr_ptr = symbols + esdid - ES_BASE;
 779         }
 780     }
 781
 782   for (count = 0; count < section->reloc_count; count++)
 783     *relptr++ = src++;
 784
 785   *relptr = 0;
 786   return section->reloc_count;
 787 }
 788
 789 #define versados_close_and_cleanup                    _bfd_generic_close_and_cleanup
 790 #define versados_bfd_free_cached_info                 _bfd_generic_bfd_free_cached_info
 791 #define versados_new_section_hook                     _bfd_generic_new_section_hook
 792 #define versados_bfd_is_target_special_symbol   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
 793 #define versados_bfd_is_local_label_name              bfd_generic_is_local_label_name
 794 #define versados_get_lineno                           _bfd_nosymbols_get_lineno
 795 #define versados_find_nearest_line                    _bfd_nosymbols_find_nearest_line
 796 #define versados_find_inliner_info                    _bfd_nosymbols_find_inliner_info
 797 #define versados_make_empty_symbol                    _bfd_generic_make_empty_symbol
 798 #define versados_bfd_make_debug_symbol                _bfd_nosymbols_bfd_make_debug_symbol
 799 #define versados_read_minisymbols                     _bfd_generic_read_minisymbols
 800 #define versados_minisymbol_to_symbol                 _bfd_generic_minisymbol_to_symbol
 801 #define versados_bfd_reloc_type_lookup                _bfd_norelocs_bfd_reloc_type_lookup
 802 #define versados_bfd_reloc_name_lookup          _bfd_norelocs_bfd_reloc_name_lookup
 803 #define versados_set_arch_mach                        bfd_default_set_arch_mach
 804 #define versados_bfd_get_relocated_section_contents   bfd_generic_get_relocated_section_contents
 805 #define versados_bfd_relax_section                    bfd_generic_relax_section
 806 #define versados_bfd_gc_sections                      bfd_generic_gc_sections
 807 #define versados_bfd_merge_sections                   bfd_generic_merge_sections
 808 #define versados_bfd_is_group_section                 bfd_generic_is_group_section
 809 #define versados_bfd_discard_group                    bfd_generic_discard_group
 810 #define versados_section_already_linked               _bfd_generic_section_already_linked
 811 #define versados_bfd_define_common_symbol             bfd_generic_define_common_symbol
 812 #define versados_bfd_link_hash_table_create           _bfd_generic_link_hash_table_create
 813 #define versados_bfd_link_hash_table_free             _bfd_generic_link_hash_table_free
 814 #define versados_bfd_link_add_symbols                 _bfd_generic_link_add_symbols
 815 #define versados_bfd_link_just_syms                   _bfd_generic_link_just_syms
 816 #define versados_bfd_final_link                       _bfd_generic_final_link
 817 #define versados_bfd_link_split_section               _bfd_generic_link_split_section
 818
 819 const bfd_target versados_vec =
 820 {
 821   "versados",                   /* Name.  */
 822   bfd_target_versados_flavour,
 823   BFD_ENDIAN_BIG,               /* Target byte order.  */
 824   BFD_ENDIAN_BIG,               /* Target headers byte order.  */
 825   (HAS_RELOC | EXEC_P |         /* Object flags.  */
 826    HAS_LINENO | HAS_DEBUG |
 827    HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
 828   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
 829    | SEC_ALLOC | SEC_LOAD | SEC_RELOC),         /* Section flags.  */
 830   0,                            /* Leading underscore.  */
 831   ' ',                          /* AR_pad_char.  */
 832   16,                           /* AR_max_namelen.  */
 833   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 834   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 835   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Data.  */
 836   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 837   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 838   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Headers.  */
 839
 840   {
 841     _bfd_dummy_target,
 842     versados_object_p,          /* bfd_check_format.  */
 843     _bfd_dummy_target,
 844     _bfd_dummy_target,
 845   },
 846   {
 847     bfd_false,
 848     versados_mkobject,
 849     _bfd_generic_mkarchive,
 850     bfd_false,
 851   },
 852   {                             /* bfd_write_contents.  */
 853     bfd_false,
 854     bfd_false,
 855     _bfd_write_archive_contents,
 856     bfd_false,
 857   },
 858
 859   BFD_JUMP_TABLE_GENERIC (versados),
 860   BFD_JUMP_TABLE_COPY (_bfd_generic),
 861   BFD_JUMP_TABLE_CORE (_bfd_nocore),
 862   BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
 863   BFD_JUMP_TABLE_SYMBOLS (versados),
 864   BFD_JUMP_TABLE_RELOCS (versados),
 865   BFD_JUMP_TABLE_WRITE (versados),
 866   BFD_JUMP_TABLE_LINK (versados),
 867   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 868
 869   NULL,
 870
 871   NULL
 872 };