bfd/versados.c

   1 /* BFD back-end for VERSAdos-E objects.
   2    Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003
   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 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 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 bfd_boolean versados_mkobject PARAMS ((bfd *));
  48 static bfd_boolean versados_scan PARAMS ((bfd *));
  49 static const bfd_target *versados_object_p PARAMS ((bfd *));
  50 static asymbol *versados_new_symbol
  51   PARAMS ((bfd *, int, const char *, bfd_vma, asection *));
  52 static char *new_symbol_string PARAMS ((bfd *, const char *));
  53 static const bfd_target *versados_object_p PARAMS ((bfd *));
  54 static bfd_boolean versados_pass_2 PARAMS ((bfd *));
  55 static bfd_boolean versados_get_section_contents
  56   PARAMS ((bfd *, asection *, void *, file_ptr, bfd_size_type));
  57 static bfd_boolean versados_set_section_contents
  58   PARAMS ((bfd *, sec_ptr, void *, file_ptr, bfd_size_type));
  59 static int versados_sizeof_headers PARAMS ((bfd *, bfd_boolean));
  60 static long int versados_get_symtab_upper_bound PARAMS ((bfd *));
  61 static long int versados_get_symtab PARAMS ((bfd *, asymbol **));
  62 static void versados_get_symbol_info
  63   PARAMS ((bfd *, asymbol *, symbol_info *));
  64 static void versados_print_symbol
  65   PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
  66 static long versados_get_reloc_upper_bound
  67   PARAMS ((bfd *, sec_ptr));
  68 static long versados_canonicalize_reloc
  69   PARAMS ((bfd *, sec_ptr, arelent **, asymbol **));
  70
  71 #define VHEADER '1'
  72 #define VESTDEF '2'
  73 #define VOTR '3'
  74 #define VEND '4'
  75
  76 #define ES_BASE 17              /* first symbol has esdid 17 */
  77
  78 /* Per file target dependent information */
  79
  80 /* one for each section */
  81 struct esdid
  82   {
  83     asection *section;          /* ptr to bfd version */
  84     unsigned char *contents;    /* used to build image */
  85     int pc;
  86     int relocs;                 /* reloc count, valid end of pass 1 */
  87     int donerel;                /* have relocs been translated */
  88   };
  89
  90 typedef struct versados_data_struct
  91   {
  92     int es_done;                /* count of symbol index, starts at ES_BASE */
  93     asymbol *symbols;           /* pointer to local symbols */
  94     char *strings;              /* strings of all the above */
  95     int stringlen;              /* len of string table (valid end of pass1) */
  96     int nsecsyms;               /* number of sections */
  97
  98     int ndefs;                  /* number of exported symbols (they dont get esdids) */
  99     int nrefs;                  /* number of imported symbols  (valid end of pass1) */
 100
 101     int ref_idx;                /* current processed value of the above */
 102     int def_idx;
 103
 104     int pass_2_done;
 105
 106     struct esdid e[16];         /* per section info */
 107     int alert;                  /* to see if we're trampling */
 108     asymbol *rest[256 - 16];    /* per symbol info */
 109
 110   }
 111 tdata_type;
 112
 113 #define VDATA(abfd)       (abfd->tdata.versados_data)
 114 #define EDATA(abfd, n)    (abfd->tdata.versados_data->e[n])
 115 #define RDATA(abfd, n)    (abfd->tdata.versados_data->rest[n])
 116
 117 struct ext_otr
 118   {
 119     unsigned char size;
 120     char type;
 121     unsigned char map[4];
 122     unsigned char esdid;
 123     unsigned char data[200];
 124   };
 125
 126 struct ext_vheader
 127   {
 128     unsigned char size;
 129     char type;                  /* record type */
 130     char name[10];              /* module name */
 131     char rev;                   /* module rev number */
 132     char lang;
 133     char vol[4];
 134     char user[2];
 135     char cat[8];
 136     char fname[8];
 137     char ext[2];
 138     char time[3];
 139     char date[3];
 140     char rest[211];
 141   };
 142
 143 struct ext_esd
 144   {
 145     unsigned char size;
 146     char type;
 147     unsigned char esd_entries[1];
 148   };
 149 #define ESD_ABS         0
 150 #define ESD_COMMON      1
 151 #define ESD_STD_REL_SEC 2
 152 #define ESD_SHRT_REL_SEC 3
 153 #define ESD_XDEF_IN_SEC 4
 154 #define ESD_XREF_SYM    7
 155 #define ESD_XREF_SEC    6
 156 #define ESD_XDEF_IN_ABS 5
 157 union ext_any
 158   {
 159     unsigned char size;
 160     struct ext_vheader header;
 161     struct ext_esd esd;
 162     struct ext_otr otr;
 163   };
 164
 165 static int get_record PARAMS ((bfd *, union ext_any *));
 166 static int get_4 PARAMS ((unsigned char **));
 167 static void get_10 PARAMS ((unsigned char **, char *));
 168 static void process_esd PARAMS ((bfd *, struct ext_esd *, int));
 169 static int get_offset PARAMS ((int, unsigned char *));
 170 static void process_otr PARAMS ((bfd *, struct ext_otr *, int));
 171
 172 /* Initialize by filling in the hex conversion array.  */
 173
 174 /* Set up the tdata information.  */
 175
 176 static bfd_boolean
 177 versados_mkobject (abfd)
 178      bfd *abfd;
 179 {
 180   if (abfd->tdata.versados_data == NULL)
 181     {
 182       bfd_size_type amt = sizeof (tdata_type);
 183       tdata_type *tdata = (tdata_type *) bfd_alloc (abfd, amt);
 184       if (tdata == NULL)
 185         return FALSE;
 186       abfd->tdata.versados_data = tdata;
 187       tdata->symbols = NULL;
 188       VDATA (abfd)->alert = 0x12345678;
 189     }
 190
 191   bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
 192   return TRUE;
 193 }
 194
 195 /* Report a problem in an S record file.  FIXME: This probably should
 196    not call fprintf, but we really do need some mechanism for printing
 197    error messages.  */
 198
 199 static asymbol *
 200 versados_new_symbol (abfd, snum, name, val, sec)
 201      bfd *abfd;
 202      int snum;
 203      const char *name;
 204      bfd_vma val;
 205      asection *sec;
 206 {
 207   asymbol *n = VDATA (abfd)->symbols + snum;
 208   n->name = name;
 209   n->value = val;
 210   n->section = sec;
 211   n->the_bfd = abfd;
 212   n->flags = 0;
 213   return n;
 214 }
 215
 216 static int
 217 get_record (abfd, ptr)
 218      bfd *abfd;
 219      union ext_any *ptr;
 220 {
 221   if (bfd_bread (&ptr->size, (bfd_size_type) 1, abfd) != 1
 222       || (bfd_bread ((char *) ptr + 1, (bfd_size_type) ptr->size, abfd)
 223           != ptr->size))
 224     return 0;
 225   return 1;
 226 }
 227
 228 static int
 229 get_4 (pp)
 230      unsigned char **pp;
 231 {
 232   unsigned char *p = *pp;
 233   *pp += 4;
 234   return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3] << 0);
 235 }
 236
 237 static void
 238 get_10 (pp, name)
 239      unsigned char **pp;
 240      char *name;
 241 {
 242   char *p = (char *) *pp;
 243   int len = 10;
 244   *pp += len;
 245   while (*p != ' '
 246          && len)
 247     {
 248       *name++ = *p++;
 249       len--;
 250     }
 251   *name = 0;
 252 }
 253
 254 static char *
 255 new_symbol_string (abfd, name)
 256      bfd *abfd;
 257      const char *name;
 258 {
 259   char *n = VDATA (abfd)->strings;
 260   strcpy (VDATA (abfd)->strings, name);
 261   VDATA (abfd)->strings += strlen (VDATA (abfd)->strings) + 1;
 262   return n;
 263 }
 264
 265 static void
 266 process_esd (abfd, esd, pass)
 267      bfd *abfd;
 268      struct ext_esd *esd;
 269      int pass;
 270 {
 271   /* Read through the ext def for the est entries */
 272   int togo = esd->size - 2;
 273   bfd_vma size;
 274   bfd_vma start;
 275   asection *sec;
 276   char name[11];
 277   unsigned char *ptr = esd->esd_entries;
 278   unsigned char *end = ptr + togo;
 279   while (ptr < end)
 280     {
 281       int scn = *ptr & 0xf;
 282       int typ = (*ptr >> 4) & 0xf;
 283
 284       /* Declare this section */
 285       sprintf (name, "%d", scn);
 286       sec = bfd_make_section_old_way (abfd, strdup (name));
 287       sec->target_index = scn;
 288       EDATA (abfd, scn).section = sec;
 289       ptr++;
 290       switch (typ)
 291         {
 292         default:
 293           abort ();
 294         case ESD_XREF_SEC:
 295         case ESD_XREF_SYM:
 296           {
 297             int snum = VDATA (abfd)->ref_idx++;
 298             get_10 (&ptr, name);
 299             if (pass == 1)
 300               {
 301                 VDATA (abfd)->stringlen += strlen (name) + 1;
 302               }
 303             else
 304               {
 305                 int esidx;
 306                 asymbol *s;
 307                 char *n = new_symbol_string (abfd, name);
 308                 s = versados_new_symbol (abfd, snum, n, (bfd_vma) 0,
 309                                          bfd_und_section_ptr);
 310                 esidx = VDATA (abfd)->es_done++;
 311                 RDATA (abfd, esidx - ES_BASE) = s;
 312               }
 313           }
 314           break;
 315
 316         case ESD_ABS:
 317           size = get_4 (&ptr);
 318           start = get_4 (&ptr);
 319           break;
 320         case ESD_STD_REL_SEC:
 321         case ESD_SHRT_REL_SEC:
 322           {
 323             sec->_raw_size = get_4 (&ptr);
 324             sec->flags |= SEC_ALLOC;
 325           }
 326           break;
 327         case ESD_XDEF_IN_ABS:
 328           sec = (asection *) & bfd_abs_section;
 329         case ESD_XDEF_IN_SEC:
 330           {
 331             int snum = VDATA (abfd)->def_idx++;
 332             bfd_vma val;
 333             get_10 (&ptr, name);
 334             val = get_4 (&ptr);
 335             if (pass == 1)
 336               {
 337                 /* Just remember the symbol */
 338                 VDATA (abfd)->stringlen += strlen (name) + 1;
 339               }
 340             else
 341               {
 342                 asymbol *s;
 343                 char *n = new_symbol_string (abfd, name);
 344                 s = versados_new_symbol (abfd, snum + VDATA (abfd)->nrefs, n,
 345                                          val, sec);
 346                 s->flags |= BSF_GLOBAL;
 347               }
 348           }
 349           break;
 350         }
 351     }
 352 }
 353
 354 #define R_RELWORD 1
 355 #define R_RELLONG 2
 356 #define R_RELWORD_NEG 3
 357 #define R_RELLONG_NEG 4
 358
 359 reloc_howto_type versados_howto_table[] =
 360 {
 361   HOWTO (R_RELWORD, 0, 1, 16, FALSE,
 362          0, complain_overflow_dont, 0,
 363          "+v16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
 364   HOWTO (R_RELLONG, 0, 2, 32, FALSE,
 365          0, complain_overflow_dont, 0,
 366          "+v32", TRUE, 0xffffffff, 0xffffffff, FALSE),
 367
 368   HOWTO (R_RELWORD_NEG, 0, -1, 16, FALSE,
 369          0, complain_overflow_dont, 0,
 370          "-v16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
 371   HOWTO (R_RELLONG_NEG, 0, -2, 32, FALSE,
 372          0, complain_overflow_dont, 0,
 373          "-v32", TRUE, 0xffffffff, 0xffffffff, FALSE),
 374 };
 375
 376 static int
 377 get_offset (len, ptr)
 378      int len;
 379      unsigned char *ptr;
 380 {
 381   int val = 0;
 382   if (len)
 383     {
 384       int i;
 385       val = *ptr++;
 386       if (val & 0x80)
 387         val |= ~0xff;
 388       for (i = 1; i < len; i++)
 389         val = (val << 8) | *ptr++;
 390     }
 391
 392   return val;
 393 }
 394
 395 static void
 396 process_otr (abfd, otr, pass)
 397      bfd *abfd;
 398      struct ext_otr *otr;
 399      int pass;
 400 {
 401   unsigned long shift;
 402   unsigned char *srcp = otr->data;
 403   unsigned char *endp = (unsigned char *) otr + otr->size;
 404   unsigned int bits = (otr->map[0] << 24)
 405   | (otr->map[1] << 16)
 406   | (otr->map[2] << 8)
 407   | (otr->map[3] << 0);
 408
 409   struct esdid *esdid = &EDATA (abfd, otr->esdid - 1);
 410   unsigned char *contents = esdid->contents;
 411   int need_contents = 0;
 412   unsigned int dst_idx = esdid->pc;
 413
 414   for (shift = ((unsigned long) 1 << 31); shift && srcp < endp; shift >>= 1)
 415     {
 416       if (bits & shift)
 417         {
 418           int flag = *srcp++;
 419           int esdids = (flag >> 5) & 0x7;
 420           int sizeinwords = ((flag >> 3) & 1) ? 2 : 1;
 421           int offsetlen = flag & 0x7;
 422           int j;
 423
 424           if (esdids == 0)
 425             {
 426               /* A zero esdid means the new pc is the offset given */
 427               dst_idx += get_offset (offsetlen, srcp);
 428               srcp += offsetlen;
 429             }
 430           else
 431             {
 432               int val = get_offset (offsetlen, srcp + esdids);
 433               if (pass == 1)
 434                 need_contents = 1;
 435               else
 436                 for (j = 0; j < sizeinwords * 2; j++)
 437                   {
 438                     contents[dst_idx + (sizeinwords * 2) - j - 1] = val;
 439                     val >>= 8;
 440                   }
 441
 442               for (j = 0; j < esdids; j++)
 443                 {
 444                   int esdid = *srcp++;
 445
 446                   if (esdid)
 447                     {
 448                       int rn = EDATA (abfd, otr->esdid - 1).relocs++;
 449                       if (pass == 1)
 450                         {
 451                           /* this is the first pass over the data,
 452                              just remember that we need a reloc */
 453                         }
 454                       else
 455                         {
 456                           arelent *n =
 457                           EDATA (abfd, otr->esdid - 1).section->relocation + rn;
 458                           n->address = dst_idx;
 459
 460                           n->sym_ptr_ptr = (asymbol **) esdid;
 461                           n->addend = 0;
 462                           n->howto = versados_howto_table + ((j & 1) * 2) + (sizeinwords - 1);
 463                         }
 464                     }
 465                 }
 466               srcp += offsetlen;
 467               dst_idx += sizeinwords * 2;
 468             }
 469         }
 470       else
 471         {
 472           need_contents = 1;
 473           if (dst_idx < esdid->section->_raw_size)
 474             if (pass == 2)
 475               {
 476                 /* absolute code, comes in 16 bit lumps */
 477                 contents[dst_idx] = srcp[0];
 478                 contents[dst_idx + 1] = srcp[1];
 479               }
 480           dst_idx += 2;
 481           srcp += 2;
 482         }
 483     }
 484   EDATA (abfd, otr->esdid - 1).pc = dst_idx;
 485
 486   if (!contents && need_contents)
 487     {
 488       bfd_size_type size = esdid->section->_raw_size;
 489       esdid->contents = (unsigned char *) bfd_alloc (abfd, size);
 490     }
 491 }
 492
 493 static bfd_boolean
 494 versados_scan (abfd)
 495      bfd *abfd;
 496 {
 497   int loop = 1;
 498   int i;
 499   int j;
 500   int nsecs = 0;
 501   bfd_size_type amt;
 502
 503   VDATA (abfd)->stringlen = 0;
 504   VDATA (abfd)->nrefs = 0;
 505   VDATA (abfd)->ndefs = 0;
 506   VDATA (abfd)->ref_idx = 0;
 507   VDATA (abfd)->def_idx = 0;
 508   VDATA (abfd)->pass_2_done = 0;
 509
 510   while (loop)
 511     {
 512       union ext_any any;
 513       if (!get_record (abfd, &any))
 514         return TRUE;
 515       switch (any.header.type)
 516         {
 517         case VHEADER:
 518           break;
 519         case VEND:
 520           loop = 0;
 521           break;
 522         case VESTDEF:
 523           process_esd (abfd, &any.esd, 1);
 524           break;
 525         case VOTR:
 526           process_otr (abfd, &any.otr, 1);
 527           break;
 528         }
 529     }
 530
 531   /* Now allocate space for the relocs and sections */
 532
 533   VDATA (abfd)->nrefs = VDATA (abfd)->ref_idx;
 534   VDATA (abfd)->ndefs = VDATA (abfd)->def_idx;
 535   VDATA (abfd)->ref_idx = 0;
 536   VDATA (abfd)->def_idx = 0;
 537
 538   abfd->symcount = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs;
 539
 540   for (i = 0; i < 16; i++)
 541     {
 542       struct esdid *esdid = &EDATA (abfd, i);
 543       if (esdid->section)
 544         {
 545           amt = (bfd_size_type) esdid->relocs * sizeof (arelent);
 546           esdid->section->relocation = (arelent *) bfd_alloc (abfd, amt);
 547
 548           esdid->pc = 0;
 549
 550           if (esdid->contents)
 551             esdid->section->flags |= SEC_HAS_CONTENTS | SEC_LOAD;
 552
 553           esdid->section->reloc_count = esdid->relocs;
 554           if (esdid->relocs)
 555             esdid->section->flags |= SEC_RELOC;
 556
 557           esdid->relocs = 0;
 558
 559           /* Add an entry into the symbol table for it */
 560           nsecs++;
 561           VDATA (abfd)->stringlen += strlen (esdid->section->name) + 1;
 562         }
 563     }
 564
 565   abfd->symcount += nsecs;
 566
 567   amt = abfd->symcount;
 568   amt *= sizeof (asymbol);
 569   VDATA (abfd)->symbols = (asymbol *) bfd_alloc (abfd, amt);
 570
 571   amt = VDATA (abfd)->stringlen;
 572   VDATA (abfd)->strings = bfd_alloc (abfd, amt);
 573
 574   if ((VDATA (abfd)->symbols == NULL && abfd->symcount > 0)
 575       || (VDATA (abfd)->strings == NULL && VDATA (abfd)->stringlen > 0))
 576     return FALSE;
 577
 578   /* Actually fill in the section symbols,
 579      we stick them at the end of the table */
 580
 581   for (j = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs, i = 0; i < 16; i++)
 582     {
 583       struct esdid *esdid = &EDATA (abfd, i);
 584       asection *sec = esdid->section;
 585       if (sec)
 586         {
 587           asymbol *s = VDATA (abfd)->symbols + j;
 588           s->name = new_symbol_string (abfd, sec->name);
 589           s->section = sec;
 590           s->flags = BSF_LOCAL;
 591           s->value = 0;
 592           s->the_bfd = abfd;
 593           j++;
 594         }
 595     }
 596   if (abfd->symcount)
 597     abfd->flags |= HAS_SYMS;
 598
 599   /* Set this to nsecs - since we've already planted the section
 600      symbols */
 601   VDATA (abfd)->nsecsyms = nsecs;
 602
 603   VDATA (abfd)->ref_idx = 0;
 604
 605   return 1;
 606 }
 607
 608 /* Check whether an existing file is a versados  file.  */
 609
 610 static const bfd_target *
 611 versados_object_p (abfd)
 612      bfd *abfd;
 613 {
 614   struct ext_vheader ext;
 615   unsigned char len;
 616   tdata_type *tdata_save;
 617
 618   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
 619     return NULL;
 620
 621   if (bfd_bread (&len, (bfd_size_type) 1, abfd) != 1)
 622     {
 623       if (bfd_get_error () != bfd_error_system_call)
 624         bfd_set_error (bfd_error_wrong_format);
 625       return NULL;
 626     }
 627
 628   if (bfd_bread (&ext.type, (bfd_size_type) len, abfd) != len)
 629     {
 630       if (bfd_get_error () != bfd_error_system_call)
 631         bfd_set_error (bfd_error_wrong_format);
 632       return NULL;
 633     }
 634
 635   /* We guess that the language field will never be larger than 10.
 636      In sample files, it is always either 0 or 1.  Checking for this
 637      prevents confusion with Intel Hex files.  */
 638   if (ext.type != VHEADER
 639       || ext.lang > 10)
 640     {
 641       bfd_set_error (bfd_error_wrong_format);
 642       return NULL;
 643     }
 644
 645   /* OK, looks like a record, build the tdata and read in.  */
 646
 647   tdata_save = abfd->tdata.versados_data;
 648   if (!versados_mkobject (abfd) || !versados_scan (abfd))
 649     {
 650       abfd->tdata.versados_data = tdata_save;
 651       return NULL;
 652     }
 653
 654   return abfd->xvec;
 655 }
 656
 657 static bfd_boolean
 658 versados_pass_2 (abfd)
 659      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
 673   while (1)
 674     {
 675       get_record (abfd, &any);
 676       switch (any.header.type)
 677         {
 678         case VEND:
 679           VDATA (abfd)->pass_2_done = 1;
 680           return 1;
 681         case VESTDEF:
 682           process_esd (abfd, &any.esd, 2);
 683           break;
 684         case VOTR:
 685           process_otr (abfd, &any.otr, 2);
 686           break;
 687         }
 688     }
 689 }
 690
 691 static bfd_boolean
 692 versados_get_section_contents (abfd, section, location, offset, count)
 693      bfd *abfd;
 694      asection *section;
 695      PTR location;
 696      file_ptr offset;
 697      bfd_size_type count;
 698 {
 699   if (!versados_pass_2 (abfd))
 700     return FALSE;
 701
 702   memcpy (location,
 703           EDATA (abfd, section->target_index).contents + offset,
 704           (size_t) count);
 705
 706   return TRUE;
 707 }
 708
 709 #define versados_get_section_contents_in_window \
 710   _bfd_generic_get_section_contents_in_window
 711
 712 static bfd_boolean
 713 versados_set_section_contents (abfd, section, location, offset, bytes_to_do)
 714      bfd *abfd ATTRIBUTE_UNUSED;
 715      sec_ptr section ATTRIBUTE_UNUSED;
 716      PTR location ATTRIBUTE_UNUSED;
 717      file_ptr offset ATTRIBUTE_UNUSED;
 718      bfd_size_type bytes_to_do ATTRIBUTE_UNUSED;
 719 {
 720   return FALSE;
 721 }
 722
 723 static int
 724 versados_sizeof_headers (abfd, exec)
 725      bfd *abfd ATTRIBUTE_UNUSED;
 726      bfd_boolean exec ATTRIBUTE_UNUSED;
 727 {
 728   return 0;
 729 }
 730
 731 /* Return the amount of memory needed to read the symbol table.  */
 732
 733 static long
 734 versados_get_symtab_upper_bound (abfd)
 735      bfd *abfd;
 736 {
 737   return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
 738 }
 739
 740 /* Return the symbol table.  */
 741
 742 static long
 743 versados_get_symtab (abfd, alocation)
 744      bfd *abfd;
 745      asymbol **alocation;
 746 {
 747   unsigned int symcount = bfd_get_symcount (abfd);
 748   unsigned int i;
 749   asymbol *s;
 750
 751   versados_pass_2 (abfd);
 752
 753   for (i = 0, s = VDATA (abfd)->symbols;
 754        i < symcount;
 755        s++, i++)
 756     {
 757       *alocation++ = s;
 758     }
 759
 760   *alocation = NULL;
 761
 762   return symcount;
 763 }
 764
 765 static void
 766 versados_get_symbol_info (ignore_abfd, symbol, ret)
 767      bfd *ignore_abfd ATTRIBUTE_UNUSED;
 768      asymbol *symbol;
 769      symbol_info *ret;
 770 {
 771   bfd_symbol_info (symbol, ret);
 772 }
 773
 774 static void
 775 versados_print_symbol (abfd, afile, symbol, how)
 776      bfd *abfd;
 777      PTR afile;
 778      asymbol *symbol;
 779      bfd_print_symbol_type how;
 780 {
 781   FILE *file = (FILE *) afile;
 782   switch (how)
 783     {
 784     case bfd_print_symbol_name:
 785       fprintf (file, "%s", symbol->name);
 786       break;
 787     default:
 788       bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
 789       fprintf (file, " %-5s %s",
 790                symbol->section->name,
 791                symbol->name);
 792
 793     }
 794 }
 795
 796 static long
 797 versados_get_reloc_upper_bound (abfd, asect)
 798      bfd *abfd ATTRIBUTE_UNUSED;
 799      sec_ptr asect;
 800 {
 801   return (asect->reloc_count + 1) * sizeof (arelent *);
 802 }
 803
 804 static long
 805 versados_canonicalize_reloc (abfd, section, relptr, symbols)
 806      bfd *abfd;
 807      sec_ptr section;
 808      arelent **relptr;
 809      asymbol **symbols;
 810 {
 811   unsigned int count;
 812   arelent *src;
 813
 814   versados_pass_2 (abfd);
 815   src = section->relocation;
 816   if (!EDATA (abfd, section->target_index).donerel)
 817     {
 818       EDATA (abfd, section->target_index).donerel = 1;
 819       /* translate from indexes to symptr ptrs */
 820       for (count = 0; count < section->reloc_count; count++)
 821         {
 822           int esdid = (int) src[count].sym_ptr_ptr;
 823
 824           if (esdid == 0)
 825             {
 826               src[count].sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
 827             }
 828           else if (esdid < ES_BASE)     /* Section relative thing */
 829             {
 830               struct esdid *e = &EDATA (abfd, esdid - 1);
 831               if (!section)
 832                 {
 833                  /** relocation relative to section which was
 834                    never declared ! */
 835                 }
 836               src[count].sym_ptr_ptr = e->section->symbol_ptr_ptr;
 837             }
 838           else
 839             {
 840               src[count].sym_ptr_ptr = symbols + esdid - ES_BASE;
 841             }
 842
 843         }
 844     }
 845
 846   for (count = 0; count < section->reloc_count; count++)
 847     {
 848       *relptr++ = src++;
 849     }
 850   *relptr = 0;
 851   return section->reloc_count;
 852 }
 853
 854 #define versados_close_and_cleanup _bfd_generic_close_and_cleanup
 855 #define versados_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
 856 #define versados_new_section_hook _bfd_generic_new_section_hook
 857
 858 #define versados_bfd_is_local_label_name bfd_generic_is_local_label_name
 859 #define versados_get_lineno _bfd_nosymbols_get_lineno
 860 #define versados_find_nearest_line _bfd_nosymbols_find_nearest_line
 861 #define versados_make_empty_symbol _bfd_generic_make_empty_symbol
 862 #define versados_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
 863 #define versados_read_minisymbols _bfd_generic_read_minisymbols
 864 #define versados_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
 865
 866 #define versados_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
 867
 868 #define versados_set_arch_mach bfd_default_set_arch_mach
 869
 870 #define versados_bfd_get_relocated_section_contents \
 871   bfd_generic_get_relocated_section_contents
 872 #define versados_bfd_relax_section bfd_generic_relax_section
 873 #define versados_bfd_gc_sections bfd_generic_gc_sections
 874 #define versados_bfd_merge_sections bfd_generic_merge_sections
 875 #define versados_bfd_discard_group bfd_generic_discard_group
 876 #define versados_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
 877 #define versados_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
 878 #define versados_bfd_link_add_symbols _bfd_generic_link_add_symbols
 879 #define versados_bfd_link_just_syms _bfd_generic_link_just_syms
 880 #define versados_bfd_final_link _bfd_generic_final_link
 881 #define versados_bfd_link_split_section _bfd_generic_link_split_section
 882
 883 const bfd_target versados_vec =
 884 {
 885   "versados",                   /* name */
 886   bfd_target_versados_flavour,
 887   BFD_ENDIAN_BIG,               /* target byte order */
 888   BFD_ENDIAN_BIG,               /* target headers byte order */
 889   (HAS_RELOC | EXEC_P |         /* object flags */
 890    HAS_LINENO | HAS_DEBUG |
 891    HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
 892   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
 893    | SEC_ALLOC | SEC_LOAD | SEC_RELOC),         /* section flags */
 894   0,                            /* leading underscore */
 895   ' ',                          /* ar_pad_char */
 896   16,                           /* ar_max_namelen */
 897   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 898   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 899   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* data */
 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,   /* hdrs */
 903
 904   {
 905     _bfd_dummy_target,
 906     versados_object_p,          /* bfd_check_format */
 907     _bfd_dummy_target,
 908     _bfd_dummy_target,
 909   },
 910   {
 911     bfd_false,
 912     versados_mkobject,
 913     _bfd_generic_mkarchive,
 914     bfd_false,
 915   },
 916   {                             /* bfd_write_contents */
 917     bfd_false,
 918     bfd_false,
 919     _bfd_write_archive_contents,
 920     bfd_false,
 921   },
 922
 923   BFD_JUMP_TABLE_GENERIC (versados),
 924   BFD_JUMP_TABLE_COPY (_bfd_generic),
 925   BFD_JUMP_TABLE_CORE (_bfd_nocore),
 926   BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
 927   BFD_JUMP_TABLE_SYMBOLS (versados),
 928   BFD_JUMP_TABLE_RELOCS (versados),
 929   BFD_JUMP_TABLE_WRITE (versados),
 930   BFD_JUMP_TABLE_LINK (versados),
 931   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 932
 933   NULL,
 934
 935   (PTR) 0
 936 };