bfd/versados.c

   1 /* BFD back-end for VERSAdos-E objects.
   2    Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
   3    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 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  23
  24 /*
  25    SUBSECTION
  26    VERSAdos-E relocateable object file format
  27
  28    DESCRIPTION
  29
  30    This module supports reading of VERSAdos relocateable
  31    object files.
  32
  33    A VERSAdos file looks like contains
  34
  35    o Indentification Record
  36    o External Symbol Definition Record
  37    o Object Text Recrod
  38    o End Record
  39
  40  */
  41
  42 #include "bfd.h"
  43 #include "sysdep.h"
  44 #include "libbfd.h"
  45 #include "libiberty.h"
  46
  47 static boolean versados_mkobject PARAMS ((bfd *));
  48 static boolean versados_scan PARAMS ((bfd *));
  49 static const bfd_target *versados_object_p PARAMS ((bfd *));
  50 static asymbol *versados_new_symbol PARAMS ((bfd *, int, const char *, bfd_vma, asection *));
  51 static char *new_symbol_string PARAMS ((bfd *, const char *));
  52 static const bfd_target *versados_object_p PARAMS ((bfd *));
  53 static boolean versados_pass_2 PARAMS ((bfd *));
  54 static boolean versados_get_section_contents
  55   PARAMS ((bfd *, asection *, void *, file_ptr, bfd_size_type));
  56 static boolean versados_set_section_contents
  57   PARAMS ((bfd *, sec_ptr, void *, file_ptr, bfd_size_type));
  58 static int versados_sizeof_headers PARAMS ((bfd *, boolean));
  59 static long int versados_get_symtab_upper_bound PARAMS ((bfd *));
  60 static long int versados_get_symtab PARAMS ((bfd *, asymbol **));
  61 static void versados_get_symbol_info
  62   PARAMS ((bfd *, asymbol *, symbol_info *));
  63 static void versados_print_symbol
  64   PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
  65 static long versados_get_reloc_upper_bound
  66   PARAMS ((bfd *, sec_ptr));
  67 static long versados_canonicalize_reloc
  68   PARAMS ((bfd *, sec_ptr, arelent **, asymbol **));
  69
  70 #define VHEADER '1'
  71 #define VESTDEF '2'
  72 #define VOTR '3'
  73 #define VEND '4'
  74
  75 #define ES_BASE 17              /* first symbol has esdid 17 */
  76
  77 /* Per file target dependent information */
  78
  79 /* one for each section */
  80 struct esdid
  81   {
  82     asection *section;          /* ptr to bfd version */
  83     unsigned char *contents;    /* used to build image */
  84     int pc;
  85     int relocs;                 /* reloc count, valid end of pass 1 */
  86     int donerel;                /* have relocs been translated */
  87   };
  88
  89 typedef struct versados_data_struct
  90   {
  91     int es_done;                /* count of symbol index, starts at ES_BASE */
  92     asymbol *symbols;           /* pointer to local symbols */
  93     char *strings;              /* strings of all the above */
  94     int stringlen;              /* len of string table (valid end of pass1) */
  95     int nsecsyms;               /* number of sections */
  96
  97     int ndefs;                  /* number of exported symbols (they dont get esdids) */
  98     int nrefs;                  /* number of imported symbols  (valid end of pass1) */
  99
 100     int ref_idx;                /* current processed value of the above */
 101     int def_idx;
 102
 103     int pass_2_done;
 104
 105     struct esdid e[16];         /* per section info */
 106     int alert;                  /* to see if we're trampling */
 107     asymbol *rest[256 - 16];    /* per symbol info */
 108
 109   }
 110 tdata_type;
 111
 112 #define VDATA(abfd)       (abfd->tdata.versados_data)
 113 #define EDATA(abfd, n)    (abfd->tdata.versados_data->e[n])
 114 #define RDATA(abfd, n)    (abfd->tdata.versados_data->rest[n])
 115
 116 struct ext_otr
 117   {
 118     unsigned char size;
 119     char type;
 120     unsigned char map[4];
 121     unsigned char esdid;
 122     unsigned char data[200];
 123   };
 124
 125 struct ext_vheader
 126   {
 127     unsigned char size;
 128     char type;                  /* record type */
 129     char name[10];              /* module name */
 130     char rev;                   /* module rev number */
 131     char lang;
 132     char vol[4];
 133     char user[2];
 134     char cat[8];
 135     char fname[8];
 136     char ext[2];
 137     char time[3];
 138     char date[3];
 139     char rest[211];
 140   };
 141
 142 struct ext_esd
 143   {
 144     unsigned char size;
 145     char type;
 146     unsigned char esd_entries[1];
 147   };
 148 #define ESD_ABS         0
 149 #define ESD_COMMON      1
 150 #define ESD_STD_REL_SEC 2
 151 #define ESD_SHRT_REL_SEC 3
 152 #define ESD_XDEF_IN_SEC 4
 153 #define ESD_XREF_SYM    7
 154 #define ESD_XREF_SEC    6
 155 #define ESD_XDEF_IN_ABS 5
 156 union ext_any
 157   {
 158     unsigned char size;
 159     struct ext_vheader header;
 160     struct ext_esd esd;
 161     struct ext_otr otr;
 162   };
 163
 164 static int get_record PARAMS ((bfd *, union ext_any *));
 165 static int get_4 PARAMS ((unsigned char **));
 166 static void get_10 PARAMS ((unsigned char **, char *));
 167 static void process_esd PARAMS ((bfd *, struct ext_esd *, int));
 168 static int get_offset PARAMS ((int, unsigned char *));
 169 static void process_otr PARAMS ((bfd *, struct ext_otr *, int));
 170
 171 /* Initialize by filling in the hex conversion array.  */
 172
 173 /* Set up the tdata information.  */
 174
 175 static boolean
 176 versados_mkobject (abfd)
 177      bfd *abfd;
 178 {
 179   if (abfd->tdata.versados_data == NULL)
 180     {
 181       bfd_size_type amt = sizeof (tdata_type);
 182       tdata_type *tdata = (tdata_type *) bfd_alloc (abfd, amt);
 183       if (tdata == NULL)
 184         return false;
 185       abfd->tdata.versados_data = tdata;
 186       tdata->symbols = NULL;
 187       VDATA (abfd)->alert = 0x12345678;
 188     }
 189
 190   bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
 191   return true;
 192 }
 193
 194 /* Report a problem in an S record file.  FIXME: This probably should
 195    not call fprintf, but we really do need some mechanism for printing
 196    error messages.  */
 197
 198 static asymbol *
 199 versados_new_symbol (abfd, snum, name, val, sec)
 200      bfd *abfd;
 201      int snum;
 202      const char *name;
 203      bfd_vma val;
 204      asection *sec;
 205 {
 206   asymbol *n = VDATA (abfd)->symbols + snum;
 207   n->name = name;
 208   n->value = val;
 209   n->section = sec;
 210   n->the_bfd = abfd;
 211   n->flags = 0;
 212   return n;
 213 }
 214
 215 static int
 216 get_record (abfd, ptr)
 217      bfd *abfd;
 218      union ext_any *ptr;
 219 {
 220   if (bfd_bread (&ptr->size, (bfd_size_type) 1, abfd) != 1
 221       || (bfd_bread ((char *) ptr + 1, (bfd_size_type) ptr->size, abfd)
 222           != ptr->size))
 223     return 0;
 224   return 1;
 225 }
 226
 227 static int
 228 get_4 (pp)
 229      unsigned char **pp;
 230 {
 231   unsigned char *p = *pp;
 232   *pp += 4;
 233   return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3] << 0);
 234 }
 235
 236 static void
 237 get_10 (pp, name)
 238      unsigned char **pp;
 239      char *name;
 240 {
 241   char *p = (char *) *pp;
 242   int len = 10;
 243   *pp += len;
 244   while (*p != ' '
 245          && len)
 246     {
 247       *name++ = *p++;
 248       len--;
 249     }
 250   *name = 0;
 251 }
 252
 253 static char *
 254 new_symbol_string (abfd, name)
 255      bfd *abfd;
 256      const char *name;
 257 {
 258   char *n = VDATA (abfd)->strings;
 259   strcpy (VDATA (abfd)->strings, name);
 260   VDATA (abfd)->strings += strlen (VDATA (abfd)->strings) + 1;
 261   return n;
 262 }
 263
 264 static void
 265 process_esd (abfd, esd, pass)
 266      bfd *abfd;
 267      struct ext_esd *esd;
 268      int pass;
 269 {
 270   /* Read through the ext def for the est entries */
 271   int togo = esd->size - 2;
 272   bfd_vma size;
 273   bfd_vma start;
 274   asection *sec;
 275   char name[11];
 276   unsigned char *ptr = esd->esd_entries;
 277   unsigned char *end = ptr + togo;
 278   while (ptr < end)
 279     {
 280       int scn = *ptr & 0xf;
 281       int typ = (*ptr >> 4) & 0xf;
 282
 283       /* Declare this section */
 284       sprintf (name, "%d", scn);
 285       sec = bfd_make_section_old_way (abfd, strdup (name));
 286       sec->target_index = scn;
 287       EDATA (abfd, scn).section = sec;
 288       ptr++;
 289       switch (typ)
 290         {
 291         default:
 292           abort ();
 293         case ESD_XREF_SEC:
 294         case ESD_XREF_SYM:
 295           {
 296             int snum = VDATA (abfd)->ref_idx++;
 297             get_10 (&ptr, name);
 298             if (pass == 1)
 299               {
 300                 VDATA (abfd)->stringlen += strlen (name) + 1;
 301               }
 302             else
 303               {
 304                 int esidx;
 305                 asymbol *s;
 306                 char *n = new_symbol_string (abfd, name);
 307                 s = versados_new_symbol (abfd, snum, n, (bfd_vma) 0,
 308                                          bfd_und_section_ptr);
 309                 esidx = VDATA (abfd)->es_done++;
 310                 RDATA (abfd, esidx - ES_BASE) = s;
 311               }
 312           }
 313           break;
 314
 315         case ESD_ABS:
 316           size = get_4 (&ptr);
 317           start = get_4 (&ptr);
 318           break;
 319         case ESD_STD_REL_SEC:
 320         case ESD_SHRT_REL_SEC:
 321           {
 322             sec->_raw_size = get_4 (&ptr);
 323             sec->flags |= SEC_ALLOC;
 324           }
 325           break;
 326         case ESD_XDEF_IN_ABS:
 327           sec = (asection *) & bfd_abs_section;
 328         case ESD_XDEF_IN_SEC:
 329           {
 330             int snum = VDATA (abfd)->def_idx++;
 331             bfd_vma val;
 332             get_10 (&ptr, name);
 333             val = get_4 (&ptr);
 334             if (pass == 1)
 335               {
 336                 /* Just remember the symbol */
 337                 VDATA (abfd)->stringlen += strlen (name) + 1;
 338               }
 339             else
 340               {
 341                 asymbol *s;
 342                 char *n = new_symbol_string (abfd, name);
 343                 s = versados_new_symbol (abfd, snum + VDATA (abfd)->nrefs, n,
 344                                          val, sec);
 345                 s->flags |= BSF_GLOBAL;
 346               }
 347           }
 348           break;
 349         }
 350     }
 351 }
 352
 353 #define R_RELWORD 1
 354 #define R_RELLONG 2
 355 #define R_RELWORD_NEG 3
 356 #define R_RELLONG_NEG 4
 357
 358 reloc_howto_type versados_howto_table[] =
 359 {
 360   HOWTO (R_RELWORD, 0, 1, 16, false,
 361          0, complain_overflow_dont, 0,
 362          "+v16", true, 0x0000ffff, 0x0000ffff, false),
 363   HOWTO (R_RELLONG, 0, 2, 32, false,
 364          0, complain_overflow_dont, 0,
 365          "+v32", true, 0xffffffff, 0xffffffff, false),
 366
 367   HOWTO (R_RELWORD_NEG, 0, -1, 16, false,
 368          0, complain_overflow_dont, 0,
 369          "-v16", true, 0x0000ffff, 0x0000ffff, false),
 370   HOWTO (R_RELLONG_NEG, 0, -2, 32, false,
 371          0, complain_overflow_dont, 0,
 372          "-v32", true, 0xffffffff, 0xffffffff, false),
 373 };
 374
 375 static int
 376 get_offset (len, ptr)
 377      int len;
 378      unsigned char *ptr;
 379 {
 380   int val = 0;
 381   if (len)
 382     {
 383       int i;
 384       val = *ptr++;
 385       if (val & 0x80)
 386         val |= ~0xff;
 387       for (i = 1; i < len; i++)
 388         val = (val << 8) | *ptr++;
 389     }
 390
 391   return val;
 392 }
 393
 394 static void
 395 process_otr (abfd, otr, pass)
 396      bfd *abfd;
 397      struct ext_otr *otr;
 398      int pass;
 399 {
 400   unsigned long shift;
 401   unsigned char *srcp = otr->data;
 402   unsigned char *endp = (unsigned char *) otr + otr->size;
 403   unsigned int bits = (otr->map[0] << 24)
 404   | (otr->map[1] << 16)
 405   | (otr->map[2] << 8)
 406   | (otr->map[3] << 0);
 407
 408   struct esdid *esdid = &EDATA (abfd, otr->esdid - 1);
 409   unsigned char *contents = esdid->contents;
 410   int need_contents = 0;
 411   unsigned int dst_idx = esdid->pc;
 412
 413   for (shift = ((unsigned long) 1 << 31); shift && srcp < endp; shift >>= 1)
 414     {
 415       if (bits & shift)
 416         {
 417           int flag = *srcp++;
 418           int esdids = (flag >> 5) & 0x7;
 419           int sizeinwords = ((flag >> 3) & 1) ? 2 : 1;
 420           int offsetlen = flag & 0x7;
 421           int j;
 422
 423           if (esdids == 0)
 424             {
 425               /* A zero esdid means the new pc is the offset given */
 426               dst_idx += get_offset (offsetlen, srcp);
 427               srcp += offsetlen;
 428             }
 429           else
 430             {
 431               int val = get_offset (offsetlen, srcp + esdids);
 432               if (pass == 1)
 433                 need_contents = 1;
 434               else
 435                 for (j = 0; j < sizeinwords * 2; j++)
 436                   {
 437                     contents[dst_idx + (sizeinwords * 2) - j - 1] = val;
 438                     val >>= 8;
 439                   }
 440
 441               for (j = 0; j < esdids; j++)
 442                 {
 443                   int esdid = *srcp++;
 444
 445                   if (esdid)
 446                     {
 447                       int rn = EDATA (abfd, otr->esdid - 1).relocs++;
 448                       if (pass == 1)
 449                         {
 450                           /* this is the first pass over the data,
 451                              just remember that we need a reloc */
 452                         }
 453                       else
 454                         {
 455                           arelent *n =
 456                           EDATA (abfd, otr->esdid - 1).section->relocation + rn;
 457                           n->address = dst_idx;
 458
 459                           n->sym_ptr_ptr = (asymbol **) esdid;
 460                           n->addend = 0;
 461                           n->howto = versados_howto_table + ((j & 1) * 2) + (sizeinwords - 1);
 462                         }
 463                     }
 464                 }
 465               srcp += offsetlen;
 466               dst_idx += sizeinwords * 2;
 467             }
 468         }
 469       else
 470         {
 471           need_contents = 1;
 472           if (dst_idx < esdid->section->_raw_size)
 473             if (pass == 2)
 474               {
 475                 /* absolute code, comes in 16 bit lumps */
 476                 contents[dst_idx] = srcp[0];
 477                 contents[dst_idx + 1] = srcp[1];
 478               }
 479           dst_idx += 2;
 480           srcp += 2;
 481         }
 482     }
 483   EDATA (abfd, otr->esdid - 1).pc = dst_idx;
 484
 485   if (!contents && need_contents)
 486     {
 487       bfd_size_type size = esdid->section->_raw_size;
 488       esdid->contents = (unsigned char *) bfd_alloc (abfd, size);
 489     }
 490 }
 491
 492 static boolean
 493 versados_scan (abfd)
 494      bfd *abfd;
 495 {
 496   int loop = 1;
 497   int i;
 498   int j;
 499   int nsecs = 0;
 500   bfd_size_type amt;
 501
 502   VDATA (abfd)->stringlen = 0;
 503   VDATA (abfd)->nrefs = 0;
 504   VDATA (abfd)->ndefs = 0;
 505   VDATA (abfd)->ref_idx = 0;
 506   VDATA (abfd)->def_idx = 0;
 507   VDATA (abfd)->pass_2_done = 0;
 508
 509   while (loop)
 510     {
 511       union ext_any any;
 512       if (!get_record (abfd, &any))
 513         return true;
 514       switch (any.header.type)
 515         {
 516         case VHEADER:
 517           break;
 518         case VEND:
 519           loop = 0;
 520           break;
 521         case VESTDEF:
 522           process_esd (abfd, &any.esd, 1);
 523           break;
 524         case VOTR:
 525           process_otr (abfd, &any.otr, 1);
 526           break;
 527         }
 528     }
 529
 530   /* Now allocate space for the relocs and sections */
 531
 532   VDATA (abfd)->nrefs = VDATA (abfd)->ref_idx;
 533   VDATA (abfd)->ndefs = VDATA (abfd)->def_idx;
 534   VDATA (abfd)->ref_idx = 0;
 535   VDATA (abfd)->def_idx = 0;
 536
 537   abfd->symcount = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs;
 538
 539   for (i = 0; i < 16; i++)
 540     {
 541       struct esdid *esdid = &EDATA (abfd, i);
 542       if (esdid->section)
 543         {
 544           amt = (bfd_size_type) esdid->relocs * sizeof (arelent);
 545           esdid->section->relocation = (arelent *) bfd_alloc (abfd, amt);
 546
 547           esdid->pc = 0;
 548
 549           if (esdid->contents)
 550             esdid->section->flags |= SEC_HAS_CONTENTS | SEC_LOAD;
 551
 552           esdid->section->reloc_count = esdid->relocs;
 553           if (esdid->relocs)
 554             esdid->section->flags |= SEC_RELOC;
 555
 556           esdid->relocs = 0;
 557
 558           /* Add an entry into the symbol table for it */
 559           nsecs++;
 560           VDATA (abfd)->stringlen += strlen (esdid->section->name) + 1;
 561         }
 562     }
 563
 564   abfd->symcount += nsecs;
 565
 566   amt = abfd->symcount;
 567   amt *= sizeof (asymbol);
 568   VDATA (abfd)->symbols = (asymbol *) bfd_alloc (abfd, amt);
 569
 570   amt = VDATA (abfd)->stringlen;
 571   VDATA (abfd)->strings = bfd_alloc (abfd, amt);
 572
 573   if ((VDATA (abfd)->symbols == NULL && abfd->symcount > 0)
 574       || (VDATA (abfd)->strings == NULL && VDATA (abfd)->stringlen > 0))
 575     return false;
 576
 577   /* Actually fill in the section symbols,
 578      we stick them at the end of the table */
 579
 580   for (j = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs, i = 0; i < 16; i++)
 581     {
 582       struct esdid *esdid = &EDATA (abfd, i);
 583       asection *sec = esdid->section;
 584       if (sec)
 585         {
 586           asymbol *s = VDATA (abfd)->symbols + j;
 587           s->name = new_symbol_string (abfd, sec->name);
 588           s->section = sec;
 589           s->flags = BSF_LOCAL;
 590           s->value = 0;
 591           s->the_bfd = abfd;
 592           j++;
 593         }
 594     }
 595   if (abfd->symcount)
 596     abfd->flags |= HAS_SYMS;
 597
 598   /* Set this to nsecs - since we've already planted the section
 599      symbols */
 600   VDATA (abfd)->nsecsyms = nsecs;
 601
 602   VDATA (abfd)->ref_idx = 0;
 603
 604   return 1;
 605 }
 606
 607 /* Check whether an existing file is a versados  file.  */
 608
 609 static const bfd_target *
 610 versados_object_p (abfd)
 611      bfd *abfd;
 612 {
 613   struct ext_vheader ext;
 614   unsigned char len;
 615   tdata_type *tdata_save;
 616
 617   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
 618     return NULL;
 619
 620   if (bfd_bread (&len, (bfd_size_type) 1, abfd) != 1)
 621     {
 622       if (bfd_get_error () != bfd_error_system_call)
 623         bfd_set_error (bfd_error_wrong_format);
 624       return NULL;
 625     }
 626
 627   if (bfd_bread (&ext.type, (bfd_size_type) len, abfd) != len)
 628     {
 629       if (bfd_get_error () != bfd_error_system_call)
 630         bfd_set_error (bfd_error_wrong_format);
 631       return NULL;
 632     }
 633
 634   /* We guess that the language field will never be larger than 10.
 635      In sample files, it is always either 0 or 1.  Checking for this
 636      prevents confusion with Intel Hex files.  */
 637   if (ext.type != VHEADER
 638       || ext.lang > 10)
 639     {
 640       bfd_set_error (bfd_error_wrong_format);
 641       return NULL;
 642     }
 643
 644   /* OK, looks like a record, build the tdata and read in.  */
 645
 646   tdata_save = abfd->tdata.versados_data;
 647   if (!versados_mkobject (abfd) || !versados_scan (abfd))
 648     {
 649       abfd->tdata.versados_data = tdata_save;
 650       return NULL;
 651     }
 652
 653   return abfd->xvec;
 654 }
 655
 656 static boolean
 657 versados_pass_2 (abfd)
 658      bfd *abfd;
 659 {
 660   union ext_any any;
 661
 662   if (VDATA (abfd)->pass_2_done)
 663     return 1;
 664
 665   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
 666     return 0;
 667
 668   VDATA (abfd)->es_done = ES_BASE;
 669
 670   /* read records till we get to where we want to be */
 671
 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 boolean
 691 versados_get_section_contents (abfd, section, location, offset, count)
 692      bfd *abfd;
 693      asection *section;
 694      PTR location;
 695      file_ptr offset;
 696      bfd_size_type count;
 697 {
 698   if (!versados_pass_2 (abfd))
 699     return false;
 700
 701   memcpy (location,
 702           EDATA (abfd, section->target_index).contents + offset,
 703           (size_t) count);
 704
 705   return true;
 706 }
 707
 708 #define versados_get_section_contents_in_window \
 709   _bfd_generic_get_section_contents_in_window
 710
 711 static boolean
 712 versados_set_section_contents (abfd, section, location, offset, bytes_to_do)
 713      bfd *abfd ATTRIBUTE_UNUSED;
 714      sec_ptr section ATTRIBUTE_UNUSED;
 715      PTR location ATTRIBUTE_UNUSED;
 716      file_ptr offset ATTRIBUTE_UNUSED;
 717      bfd_size_type bytes_to_do ATTRIBUTE_UNUSED;
 718 {
 719   return false;
 720 }
 721
 722 static int
 723 versados_sizeof_headers (abfd, exec)
 724      bfd *abfd ATTRIBUTE_UNUSED;
 725      boolean exec ATTRIBUTE_UNUSED;
 726 {
 727   return 0;
 728 }
 729
 730 /* Return the amount of memory needed to read the symbol table.  */
 731
 732 static long
 733 versados_get_symtab_upper_bound (abfd)
 734      bfd *abfd;
 735 {
 736   return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
 737 }
 738
 739 /* Return the symbol table.  */
 740
 741 static long
 742 versados_get_symtab (abfd, alocation)
 743      bfd *abfd;
 744      asymbol **alocation;
 745 {
 746   unsigned int symcount = bfd_get_symcount (abfd);
 747   unsigned int i;
 748   asymbol *s;
 749
 750   versados_pass_2 (abfd);
 751
 752   for (i = 0, s = VDATA (abfd)->symbols;
 753        i < symcount;
 754        s++, i++)
 755     {
 756       *alocation++ = s;
 757     }
 758
 759   *alocation = NULL;
 760
 761   return symcount;
 762 }
 763
 764 static void
 765 versados_get_symbol_info (ignore_abfd, symbol, ret)
 766      bfd *ignore_abfd ATTRIBUTE_UNUSED;
 767      asymbol *symbol;
 768      symbol_info *ret;
 769 {
 770   bfd_symbol_info (symbol, ret);
 771 }
 772
 773 static void
 774 versados_print_symbol (abfd, afile, symbol, how)
 775      bfd *abfd;
 776      PTR afile;
 777      asymbol *symbol;
 778      bfd_print_symbol_type how;
 779 {
 780   FILE *file = (FILE *) afile;
 781   switch (how)
 782     {
 783     case bfd_print_symbol_name:
 784       fprintf (file, "%s", symbol->name);
 785       break;
 786     default:
 787       bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
 788       fprintf (file, " %-5s %s",
 789                symbol->section->name,
 790                symbol->name);
 791
 792     }
 793 }
 794
 795 static long
 796 versados_get_reloc_upper_bound (abfd, asect)
 797      bfd *abfd ATTRIBUTE_UNUSED;
 798      sec_ptr asect;
 799 {
 800   return (asect->reloc_count + 1) * sizeof (arelent *);
 801 }
 802
 803 static long
 804 versados_canonicalize_reloc (abfd, section, relptr, symbols)
 805      bfd *abfd;
 806      sec_ptr section;
 807      arelent **relptr;
 808      asymbol **symbols;
 809 {
 810   unsigned int count;
 811   arelent *src;
 812
 813   versados_pass_2 (abfd);
 814   src = section->relocation;
 815   if (!EDATA (abfd, section->target_index).donerel)
 816     {
 817       EDATA (abfd, section->target_index).donerel = 1;
 818       /* translate from indexes to symptr ptrs */
 819       for (count = 0; count < section->reloc_count; count++)
 820         {
 821           int esdid = (int) src[count].sym_ptr_ptr;
 822
 823           if (esdid == 0)
 824             {
 825               src[count].sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
 826             }
 827           else if (esdid < ES_BASE)     /* Section relative thing */
 828             {
 829               struct esdid *e = &EDATA (abfd, esdid - 1);
 830               if (!section)
 831                 {
 832                  /** relocation relative to section which was
 833                    never declared ! */
 834                 }
 835               src[count].sym_ptr_ptr = e->section->symbol_ptr_ptr;
 836             }
 837           else
 838             {
 839               src[count].sym_ptr_ptr = symbols + esdid - ES_BASE;
 840             }
 841
 842         }
 843     }
 844
 845   for (count = 0; count < section->reloc_count; count++)
 846     {
 847       *relptr++ = src++;
 848     }
 849   *relptr = 0;
 850   return section->reloc_count;
 851 }
 852
 853 #define versados_close_and_cleanup _bfd_generic_close_and_cleanup
 854 #define versados_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
 855 #define versados_new_section_hook _bfd_generic_new_section_hook
 856
 857 #define versados_bfd_is_local_label_name bfd_generic_is_local_label_name
 858 #define versados_get_lineno _bfd_nosymbols_get_lineno
 859 #define versados_find_nearest_line _bfd_nosymbols_find_nearest_line
 860 #define versados_make_empty_symbol _bfd_generic_make_empty_symbol
 861 #define versados_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
 862 #define versados_read_minisymbols _bfd_generic_read_minisymbols
 863 #define versados_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
 864
 865 #define versados_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
 866
 867 #define versados_set_arch_mach bfd_default_set_arch_mach
 868
 869 #define versados_bfd_get_relocated_section_contents \
 870   bfd_generic_get_relocated_section_contents
 871 #define versados_bfd_relax_section bfd_generic_relax_section
 872 #define versados_bfd_gc_sections bfd_generic_gc_sections
 873 #define versados_bfd_merge_sections bfd_generic_merge_sections
 874 #define versados_bfd_discard_group bfd_generic_discard_group
 875 #define versados_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
 876 #define versados_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
 877 #define versados_bfd_link_add_symbols _bfd_generic_link_add_symbols
 878 #define versados_bfd_link_just_syms _bfd_generic_link_just_syms
 879 #define versados_bfd_final_link _bfd_generic_final_link
 880 #define versados_bfd_link_split_section _bfd_generic_link_split_section
 881
 882 const bfd_target versados_vec =
 883 {
 884   "versados",                   /* name */
 885   bfd_target_versados_flavour,
 886   BFD_ENDIAN_BIG,               /* target byte order */
 887   BFD_ENDIAN_BIG,               /* target headers byte order */
 888   (HAS_RELOC | EXEC_P |         /* object flags */
 889    HAS_LINENO | HAS_DEBUG |
 890    HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
 891   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
 892    | SEC_ALLOC | SEC_LOAD | SEC_RELOC),         /* section flags */
 893   0,                            /* leading underscore */
 894   ' ',                          /* ar_pad_char */
 895   16,                           /* ar_max_namelen */
 896   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 897   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 898   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* data */
 899   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 900   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 901   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* hdrs */
 902
 903   {
 904     _bfd_dummy_target,
 905     versados_object_p,          /* bfd_check_format */
 906     _bfd_dummy_target,
 907     _bfd_dummy_target,
 908   },
 909   {
 910     bfd_false,
 911     versados_mkobject,
 912     _bfd_generic_mkarchive,
 913     bfd_false,
 914   },
 915   {                             /* bfd_write_contents */
 916     bfd_false,
 917     bfd_false,
 918     _bfd_write_archive_contents,
 919     bfd_false,
 920   },
 921
 922   BFD_JUMP_TABLE_GENERIC (versados),
 923   BFD_JUMP_TABLE_COPY (_bfd_generic),
 924   BFD_JUMP_TABLE_CORE (_bfd_nocore),
 925   BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
 926   BFD_JUMP_TABLE_SYMBOLS (versados),
 927   BFD_JUMP_TABLE_RELOCS (versados),
 928   BFD_JUMP_TABLE_WRITE (versados),
 929   BFD_JUMP_TABLE_LINK (versados),
 930   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 931
 932   NULL,
 933
 934   (PTR) 0
 935 };