bfd/vms-gsd.c

   1 /* vms-gsd.c -- BFD back-end for VAX (openVMS/VAX) and
   2    EVAX (openVMS/Alpha) files.
   3    Copyright 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   4
   5    go and read the openVMS linker manual (esp. appendix B)
   6    if you don't know what's going on here :-)
   7
   8    Written by Klaus K"ampf (kkaempf@rmi.de)
   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 #include "bfd.h"
  25 #include "sysdep.h"
  26 #include "bfdlink.h"
  27 #include "libbfd.h"
  28
  29 #include "vms.h"
  30
  31 /*-----------------------------------------------------------------------------*/
  32
  33 /* typical sections for vax object files  */
  34
  35 #define VAX_CODE_NAME           "$CODE"
  36 #define VAX_DATA_NAME           "$DATA"
  37 #define VAX_ADDRESS_DATA_NAME   "$ADDRESS_DATA"
  38
  39 /* typical sections for evax object files  */
  40
  41 #define EVAX_ABS_NAME           "$ABS$"
  42 #define EVAX_CODE_NAME          "$CODE$"
  43 #define EVAX_LINK_NAME          "$LINK$"
  44 #define EVAX_DATA_NAME          "$DATA$"
  45 #define EVAX_BSS_NAME           "$BSS$"
  46 #define EVAX_READONLYADDR_NAME  "$READONLY_ADDR$"
  47 #define EVAX_READONLY_NAME      "$READONLY$"
  48 #define EVAX_LITERAL_NAME       "$LITERAL$"
  49 #define EVAX_COMMON_NAME        "$COMMON$"
  50 #define EVAX_LOCAL_NAME         "$LOCAL$"
  51
  52 struct sec_flags_struct {
  53   char *name;                   /* name of section */
  54   int vflags_always;
  55   flagword flags_always;        /* flags we set always */
  56   int vflags_hassize;
  57   flagword flags_hassize;       /* flags we set if the section has a size > 0 */
  58 };
  59
  60 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible  */
  61
  62 static struct sec_flags_struct vax_section_flags[] = {
  63   { VAX_CODE_NAME,
  64         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
  65         (SEC_CODE),
  66         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
  67         (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  68   { VAX_DATA_NAME,
  69         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
  70         (SEC_DATA),
  71         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
  72         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  73   { VAX_ADDRESS_DATA_NAME,
  74         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
  75         (SEC_DATA|SEC_READONLY),
  76         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
  77         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  78   { NULL,
  79         (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
  80         (SEC_DATA),
  81         (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
  82         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
  83 };
  84
  85 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible  */
  86
  87 static struct sec_flags_struct evax_section_flags[] = {
  88   { EVAX_ABS_NAME,
  89         (EGPS_S_V_SHR),
  90         (SEC_DATA),
  91         (EGPS_S_V_SHR),
  92         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  93   { EVAX_CODE_NAME,
  94         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
  95         (SEC_CODE),
  96         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
  97         (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  98   { EVAX_LITERAL_NAME,
  99         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
 100         (SEC_DATA|SEC_READONLY),
 101         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
 102         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 103   { EVAX_LINK_NAME,
 104         (EGPS_S_V_REL|EGPS_S_V_RD),
 105         (SEC_DATA|SEC_READONLY),
 106         (EGPS_S_V_REL|EGPS_S_V_RD),
 107         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 108   { EVAX_DATA_NAME,
 109         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
 110         (SEC_DATA),
 111         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 112         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 113   { EVAX_BSS_NAME,
 114         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
 115         (SEC_NO_FLAGS),
 116         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
 117         (SEC_IN_MEMORY|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 118   { EVAX_READONLYADDR_NAME,
 119         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
 120         (SEC_DATA|SEC_READONLY),
 121         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
 122         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 123   { EVAX_READONLY_NAME,
 124         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
 125         (SEC_DATA|SEC_READONLY),
 126         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
 127         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 128   { EVAX_LOCAL_NAME,
 129         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 130         (SEC_DATA),
 131         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 132         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 133   { NULL,
 134         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 135         (SEC_DATA),
 136         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 137         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
 138 };
 139
 140 static flagword vms_secflag_by_name PARAMS ((bfd *, struct sec_flags_struct *, char *, int));
 141 static flagword vms_esecflag_by_name PARAMS ((struct sec_flags_struct *, char *, int));
 142
 143 /* Retrieve bfd section flags by name and size  */
 144
 145 static flagword
 146 vms_secflag_by_name (abfd, section_flags, name, hassize)
 147      bfd *abfd;
 148      struct sec_flags_struct *section_flags;
 149      char *name;
 150      int hassize;
 151 {
 152   int i = 0;
 153
 154   while (section_flags[i].name != NULL)
 155     {
 156       if ((PRIV(is_vax)?
 157             strcasecmp (name, section_flags[i].name):
 158             strcmp (name, section_flags[i].name)) == 0)
 159         {
 160           if (hassize)
 161             return section_flags[i].flags_hassize;
 162           else
 163             return section_flags[i].flags_always;
 164         }
 165       i++;
 166     }
 167   if (hassize)
 168     return section_flags[i].flags_hassize;
 169   return section_flags[i].flags_always;
 170 }
 171
 172 /* Retrieve vms section flags by name and size  */
 173
 174 static flagword
 175 vms_esecflag_by_name (section_flags, name, hassize)
 176      struct sec_flags_struct *section_flags;
 177      char *name;
 178      int hassize;
 179 {
 180   int i = 0;
 181
 182   while (section_flags[i].name != NULL)
 183     {
 184       if (strcmp (name, section_flags[i].name) == 0)
 185         {
 186           if (hassize)
 187             return section_flags[i].vflags_hassize;
 188           else
 189             return section_flags[i].vflags_always;
 190         }
 191       i++;
 192     }
 193   if (hassize)
 194     return section_flags[i].vflags_hassize;
 195   return section_flags[i].vflags_always;
 196 }
 197
 198 /*-----------------------------------------------------------------------------*/
 199 #if VMS_DEBUG
 200 /* debug */
 201
 202 struct flagdescstruct { char *name; flagword value; };
 203
 204 /* Convert flag to printable string  */
 205
 206 static char *
 207 flag2str(flagdesc, flags)
 208      struct flagdescstruct *flagdesc;
 209      flagword flags;
 210 {
 211
 212   static char res[64];
 213   int next = 0;
 214
 215   res[0] = 0;
 216   while (flagdesc->name != NULL)
 217     {
 218       if ((flags & flagdesc->value) != 0)
 219         {
 220           if (next)
 221             strcat(res, ",");
 222           else
 223             next = 1;
 224           strcat (res, flagdesc->name);
 225         }
 226       flagdesc++;
 227     }
 228   return res;
 229 }
 230 #endif
 231
 232 /*-----------------------------------------------------------------------------*/
 233 /* input routines */
 234
 235 /* Process GSD/EGSD record
 236    return 0 on success, -1 on error  */
 237
 238 int
 239 _bfd_vms_slurp_gsd (abfd, objtype)
 240      bfd *abfd;
 241      int objtype;
 242 {
 243 #if VMS_DEBUG
 244   static struct flagdescstruct gpsflagdesc[] =
 245   {
 246     { "PIC", 0x0001 },
 247     { "LIB", 0x0002 },
 248     { "OVR", 0x0004 },
 249     { "REL", 0x0008 },
 250     { "GBL", 0x0010 },
 251     { "SHR", 0x0020 },
 252     { "EXE", 0x0040 },
 253     { "RD",  0x0080 },
 254     { "WRT", 0x0100 },
 255     { "VEC", 0x0200 },
 256     { "NOMOD", 0x0400 },
 257     { "COM", 0x0800 },
 258     { NULL, 0 }
 259   };
 260
 261   static struct flagdescstruct gsyflagdesc[] =
 262   {
 263     { "WEAK", 0x0001 },
 264     { "DEF",  0x0002 },
 265     { "UNI",  0x0004 },
 266     { "REL",  0x0008 },
 267     { "COMM", 0x0010 },
 268     { "VECEP", 0x0020 },
 269     { "NORM", 0x0040 },
 270     { NULL, 0 }
 271   };
 272 #endif
 273
 274   int gsd_type, gsd_size;
 275   asection *section;
 276   unsigned char *vms_rec;
 277   flagword new_flags, old_flags;
 278   char *name;
 279   asymbol *symbol;
 280   vms_symbol_entry *entry;
 281   unsigned long base_addr;
 282   unsigned long align_addr;
 283   static unsigned int psect_idx = 0;
 284
 285 #if VMS_DEBUG
 286   vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype);
 287 #endif
 288
 289   switch (objtype)
 290     {
 291     case EOBJ_S_C_EGSD:
 292       PRIV(vms_rec) += 8;       /* skip type, size, l_temp */
 293       PRIV(rec_size) -= 8;
 294       break;
 295     case OBJ_S_C_GSD:
 296       PRIV(vms_rec) += 1;
 297       PRIV(rec_size) -= 1;
 298       break;
 299     default:
 300       return -1;
 301     }
 302
 303   /* calculate base address for each section  */
 304   base_addr = 0L;
 305
 306   abfd->symcount = 0;
 307
 308   while (PRIV(rec_size) > 0)
 309     {
 310       vms_rec = PRIV(vms_rec);
 311
 312       if (objtype == OBJ_S_C_GSD)
 313         {
 314           gsd_type = *vms_rec;
 315         }
 316       else
 317         {
 318           _bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size);
 319           gsd_type += EVAX_OFFSET;
 320         }
 321
 322 #if VMS_DEBUG
 323   vms_debug (3, "gsd_type %d\n", gsd_type);
 324 #endif
 325
 326       switch (gsd_type)
 327         {
 328           case GSD_S_C_PSC:
 329             {
 330               /*
 331                * program section definition
 332                */
 333
 334               asection *old_section = 0;
 335
 336 #if VMS_DEBUG
 337   vms_debug (4, "GSD_S_C_PSC\n");
 338 #endif
 339               /* If this section isn't a bfd section.  */
 340
 341               if (PRIV(is_vax) && (psect_idx < (abfd->section_count-1)))
 342                 {
 343                   /* check for temporary section from TIR record.  */
 344
 345                   if (psect_idx < PRIV(section_count))
 346                     old_section = PRIV(sections)[psect_idx];
 347                   else
 348                     old_section = 0;
 349                 }
 350
 351               name = _bfd_vms_save_counted_string (vms_rec + 8);
 352               section = bfd_make_section (abfd, name);
 353               if (!section)
 354                 {
 355                   (*_bfd_error_handler) (_("bfd_make_section (%s) failed"),
 356                                          name);
 357                   return -1;
 358                 }
 359               old_flags = bfd_getl16 (vms_rec + 2);
 360               section->_raw_size = bfd_getl32 (vms_rec + 4);  /* allocation */
 361               new_flags = vms_secflag_by_name (abfd, vax_section_flags, name,
 362                                                section->_raw_size > 0);
 363               if (old_flags & EGPS_S_V_REL)
 364                 new_flags |= SEC_RELOC;
 365               if (old_flags & GPS_S_M_OVR)
 366                 new_flags |= SEC_IS_COMMON;
 367               if (!bfd_set_section_flags (abfd, section, new_flags))
 368                 {
 369                   (*_bfd_error_handler)
 370                     (_("bfd_set_section_flags (%s, %x) failed"),
 371                      name, new_flags);
 372                   return -1;
 373                 }
 374               section->alignment_power = vms_rec[1];
 375               align_addr = (1 << section->alignment_power);
 376               if ((base_addr % align_addr) != 0)
 377                 base_addr += (align_addr - (base_addr % align_addr));
 378               section->vma = (bfd_vma)base_addr;
 379               base_addr += section->_raw_size;
 380
 381               /* global section is common symbol  */
 382
 383               if (old_flags & GPS_S_M_GBL)
 384                 {
 385                   entry = _bfd_vms_enter_symbol (abfd, name);
 386                   if (entry == (vms_symbol_entry *)NULL)
 387                     {
 388                       bfd_set_error (bfd_error_no_memory);
 389                       return -1;
 390                     }
 391                   symbol = entry->symbol;
 392
 393                   symbol->value = 0;
 394                   symbol->section = section;
 395                   symbol->flags = (BSF_GLOBAL|BSF_SECTION_SYM|BSF_OLD_COMMON);
 396                 }
 397
 398               /* copy saved contents if old_section set  */
 399
 400               if (old_section != 0)
 401                 {
 402                   section->contents = old_section->contents;
 403                   if (section->_raw_size < old_section->_raw_size)
 404                     {
 405                       (*_bfd_error_handler)
 406                         (_("Size mismatch section %s=%lx, %s=%lx"),
 407                          old_section->name,
 408                          (unsigned long) old_section->_raw_size,
 409                          section->name,
 410                          (unsigned long) section->_raw_size);
 411                       return -1;
 412                     }
 413                   else if (section->_raw_size > old_section->_raw_size)
 414                     {
 415                       section->contents = ((unsigned char *)
 416                                            bfd_realloc (old_section->contents,
 417                                                         section->_raw_size));
 418                       if (section->contents == NULL)
 419                         {
 420                           bfd_set_error (bfd_error_no_memory);
 421                           return -1;
 422                         }
 423                     }
 424                 }
 425               else
 426                 {
 427                   section->contents = ((unsigned char *)
 428                                        bfd_malloc (section->_raw_size));
 429                   if (section->contents == NULL)
 430                     {
 431                       bfd_set_error (bfd_error_no_memory);
 432                       return -1;
 433                     }
 434                   memset (section->contents, 0, (size_t) section->_raw_size);
 435                 }
 436               section->_cooked_size = section->_raw_size;
 437 #if VMS_DEBUG
 438               vms_debug (4, "gsd psc %d (%s, flags %04x=%s) ",
 439                          section->index, name, old_flags, flag2str (gpsflagdesc, old_flags));
 440               vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n",
 441                          section->_raw_size, section->vma, section->contents);
 442 #endif
 443
 444               gsd_size = vms_rec[8] + 9;
 445
 446               psect_idx++;
 447             }
 448           break;
 449
 450           case GSD_S_C_EPM:
 451           case GSD_S_C_EPMW:
 452 #if VMS_DEBUG
 453                 vms_debug(4, "gsd epm\n");
 454 #endif
 455           /*FALLTHRU*/
 456           case GSD_S_C_SYM:
 457           case GSD_S_C_SYMW:
 458             {
 459               int name_offset = 0, value_offset = 0;
 460
 461               /*
 462                * symbol specification (definition or reference)
 463                */
 464
 465 #if VMS_DEBUG
 466   vms_debug (4, "GSD_S_C_SYM(W)\n");
 467 #endif
 468               old_flags = bfd_getl16 (vms_rec + 2);
 469               new_flags = BSF_NO_FLAGS;
 470
 471               if (old_flags & GSY_S_M_WEAK)
 472                 new_flags |= BSF_WEAK;
 473
 474               switch (gsd_type)
 475                 {
 476                 case GSD_S_C_EPM:
 477                   name_offset = 11;
 478                   value_offset = 5;
 479                   new_flags |= BSF_FUNCTION;
 480                   break;
 481                 case GSD_S_C_EPMW:
 482                   name_offset = 12;
 483                   value_offset = 6;
 484                   new_flags |= BSF_FUNCTION;
 485                   break;
 486                 case GSD_S_C_SYM:
 487                   if (old_flags & GSY_S_M_DEF)  /* symbol definition */
 488                     name_offset = 9;
 489                   else
 490                     name_offset = 4;
 491                   value_offset = 5;
 492                   break;
 493                 case GSD_S_C_SYMW:
 494                   if (old_flags & GSY_S_M_DEF)  /* symbol definition */
 495                     name_offset = 10;
 496                   else
 497                     name_offset = 5;
 498                   value_offset = 6;
 499                   break;
 500                 }
 501
 502               /* save symbol in vms_symbol_table */
 503
 504               entry = _bfd_vms_enter_symbol (abfd,
 505                         _bfd_vms_save_counted_string (vms_rec + name_offset));
 506               if (entry == (vms_symbol_entry *)NULL)
 507                 {
 508                   bfd_set_error (bfd_error_no_memory);
 509                   return -1;
 510                 }
 511               symbol = entry->symbol;
 512
 513               if (old_flags & GSY_S_M_DEF)      /* symbol definition */
 514                 {
 515                   int psect;
 516
 517                   symbol->value = bfd_getl32 (vms_rec+value_offset);
 518                   if ((gsd_type == GSD_S_C_SYMW)
 519                       || (gsd_type == GSD_S_C_EPMW))
 520                     psect = bfd_getl16 (vms_rec + value_offset - 2);
 521                   else
 522                     psect = vms_rec[value_offset-1];
 523
 524                   symbol->section = (asection *)psect;
 525 #if VMS_DEBUG
 526                   vms_debug(4, "gsd sym def #%d (%s, %d [%p], %04x=%s)\n", abfd->symcount,
 527                                 symbol->name, (int)symbol->section, symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
 528 #endif
 529                 }
 530               else      /* symbol reference */
 531                 {
 532                   symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
 533 #if VMS_DEBUG
 534                   vms_debug (4, "gsd sym ref #%d (%s, %s [%p], %04x=%s)\n", abfd->symcount,
 535                                 symbol->name, symbol->section->name, symbol->section, old_flags, flag2str (gsyflagdesc, old_flags));
 536 #endif
 537                 }
 538
 539               gsd_size = vms_rec[name_offset] + name_offset + 1;
 540               symbol->flags = new_flags;
 541             }
 542
 543           break;
 544
 545           case GSD_S_C_PRO:
 546           case GSD_S_C_PROW:
 547 #if VMS_DEBUG
 548                 vms_debug(4, "gsd pro\n");
 549 #endif
 550           break;
 551           case GSD_S_C_IDC:
 552 #if VMS_DEBUG
 553                 vms_debug(4, "gsd idc\n");
 554 #endif
 555           break;
 556           case GSD_S_C_ENV:
 557 #if VMS_DEBUG
 558                 vms_debug(4, "gsd env\n");
 559 #endif
 560           break;
 561           case GSD_S_C_LSY:
 562 #if VMS_DEBUG
 563                 vms_debug(4, "gsd lsy\n");
 564 #endif
 565           break;
 566           case GSD_S_C_LEPM:
 567 #if VMS_DEBUG
 568                 vms_debug(4, "gsd lepm\n");
 569 #endif
 570           break;
 571           case GSD_S_C_LPRO:
 572 #if VMS_DEBUG
 573                 vms_debug(4, "gsd lpro\n");
 574 #endif
 575           break;
 576           case GSD_S_C_SPSC:
 577 #if VMS_DEBUG
 578                 vms_debug(4, "gsd spsc\n");
 579 #endif
 580           break;
 581           case GSD_S_C_SYMV:
 582 #if VMS_DEBUG
 583                 vms_debug(4, "gsd symv\n");
 584 #endif
 585           break;
 586           case GSD_S_C_EPMV:
 587 #if VMS_DEBUG
 588                 vms_debug(4, "gsd epmv\n");
 589 #endif
 590           break;
 591           case GSD_S_C_PROV:
 592 #if VMS_DEBUG
 593                 vms_debug(4, "gsd prov\n");
 594 #endif
 595           break;
 596
 597         case EGSD_S_C_PSC + EVAX_OFFSET:
 598           {
 599             /* program section definition  */
 600
 601             name = _bfd_vms_save_counted_string (vms_rec+12);
 602             section = bfd_make_section (abfd, name);
 603             if (!section)
 604               return -1;
 605             old_flags = bfd_getl16 (vms_rec + 6);
 606             section->_raw_size = bfd_getl32 (vms_rec + 8);      /* allocation */
 607             new_flags = vms_secflag_by_name (abfd, evax_section_flags, name,
 608                                              section->_raw_size > 0);
 609             if (old_flags & EGPS_S_V_REL)
 610               new_flags |= SEC_RELOC;
 611             if (!bfd_set_section_flags (abfd, section, new_flags))
 612               return -1;
 613             section->alignment_power = vms_rec[4];
 614             align_addr = (1 << section->alignment_power);
 615             if ((base_addr % align_addr) != 0)
 616               base_addr += (align_addr - (base_addr % align_addr));
 617             section->vma = (bfd_vma)base_addr;
 618             base_addr += section->_raw_size;
 619             section->contents = ((unsigned char *)
 620                                  bfd_malloc (section->_raw_size));
 621             if (section->contents == NULL)
 622               return -1;
 623             memset (section->contents, 0, (size_t) section->_raw_size);
 624             section->_cooked_size = section->_raw_size;
 625 #if VMS_DEBUG
 626             vms_debug(4, "egsd psc %d (%s, flags %04x=%s) ",
 627                        section->index, name, old_flags, flag2str(gpsflagdesc, old_flags));
 628             vms_debug(4, "%d bytes at 0x%08lx (mem %p)\n",
 629                        section->_raw_size, section->vma, section->contents);
 630 #endif
 631           }
 632           break;
 633
 634         case EGSD_S_C_SYM + EVAX_OFFSET:
 635           {
 636             /* symbol specification (definition or reference)  */
 637
 638             symbol = _bfd_vms_make_empty_symbol (abfd);
 639             if (symbol == 0)
 640               return -1;
 641
 642             old_flags = bfd_getl16 (vms_rec + 6);
 643             new_flags = BSF_NO_FLAGS;
 644
 645             if (old_flags & EGSY_S_V_WEAK)
 646               new_flags |= BSF_WEAK;
 647
 648             if (vms_rec[6] & EGSY_S_V_DEF)      /* symbol definition */
 649               {
 650                 symbol->name =
 651                   _bfd_vms_save_counted_string (vms_rec+32);
 652                 if (old_flags & EGSY_S_V_NORM)
 653                   {         /* proc def */
 654                     new_flags |= BSF_FUNCTION;
 655                   }
 656                 symbol->value = bfd_getl64 (vms_rec+8);
 657                 symbol->section = (asection *) ((unsigned long) bfd_getl32 (vms_rec+28));
 658 #if VMS_DEBUG
 659                 vms_debug(4, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount,
 660                            symbol->name, (int)symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
 661 #endif
 662               }
 663             else        /* symbol reference */
 664               {
 665                 symbol->name =
 666                   _bfd_vms_save_counted_string (vms_rec+8);
 667 #if VMS_DEBUG
 668                 vms_debug(4, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount,
 669                            symbol->name, old_flags, flag2str(gsyflagdesc, old_flags));
 670 #endif
 671                 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
 672               }
 673
 674             symbol->flags = new_flags;
 675
 676             /* save symbol in vms_symbol_table  */
 677
 678             entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV(vms_symbol_table), symbol->name, true, false);
 679             if (entry == (vms_symbol_entry *)NULL)
 680               {
 681                 bfd_set_error (bfd_error_no_memory);
 682                 return -1;
 683               }
 684             if (entry->symbol != (asymbol *)NULL)
 685               {                                 /* FIXME ?, DEC C generates this */
 686 #if VMS_DEBUG
 687                 vms_debug(4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name);
 688 #endif
 689               }
 690             else
 691               {
 692                 entry->symbol = symbol;
 693                 PRIV(gsd_sym_count)++;
 694                 abfd->symcount++;
 695               }
 696           }
 697           break;
 698
 699         case EGSD_S_C_IDC + EVAX_OFFSET:
 700           break;
 701
 702         default:
 703           (*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type);
 704           bfd_set_error (bfd_error_bad_value);
 705           return -1;
 706
 707         } /* switch */
 708
 709       PRIV(rec_size) -= gsd_size;
 710       PRIV(vms_rec) += gsd_size;
 711
 712     } /* while (recsize > 0) */
 713
 714   if (abfd->symcount > 0)
 715     abfd->flags |= HAS_SYMS;
 716
 717   return 0;
 718 }
 719
 720 /*-----------------------------------------------------------------------------*/
 721 /* output routines */
 722
 723 /* Write section and symbol directory of bfd abfd  */
 724
 725 int
 726 _bfd_vms_write_gsd (abfd, objtype)
 727      bfd *abfd;
 728      int objtype ATTRIBUTE_UNUSED;
 729 {
 730   asection *section;
 731   asymbol *symbol;
 732   unsigned int symnum;
 733   int last_index = -1;
 734   char dummy_name[10];
 735   char *sname;
 736   flagword new_flags, old_flags;
 737
 738 #if VMS_DEBUG
 739   vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype);
 740 #endif
 741
 742   /* output sections  */
 743
 744   section = abfd->sections;
 745 #if VMS_DEBUG
 746   vms_debug (3, "%d sections found\n", abfd->section_count);
 747 #endif
 748
 749   /* egsd is quadword aligned  */
 750
 751   _bfd_vms_output_alignment (abfd, 8);
 752
 753   _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
 754   _bfd_vms_output_long (abfd, 0);
 755   _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
 756
 757   while (section != 0)
 758     {
 759 #if VMS_DEBUG
 760   vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->_raw_size);
 761 #endif
 762
 763         /* 13 bytes egsd, max 31 chars name -> should be 44 bytes */
 764       if (_bfd_vms_output_check (abfd, 64) < 0)
 765         {
 766           _bfd_vms_output_pop (abfd);
 767           _bfd_vms_output_end (abfd);
 768           _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
 769           _bfd_vms_output_long (abfd, 0);
 770           _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
 771         }
 772
 773         /* Create dummy sections to keep consecutive indices */
 774
 775       while (section->index - last_index > 1)
 776         {
 777 #if VMS_DEBUG
 778           vms_debug (3, "index %d, last %d\n", section->index, last_index);
 779 #endif
 780           _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
 781           _bfd_vms_output_short (abfd, 0);
 782           _bfd_vms_output_short (abfd, 0);
 783           _bfd_vms_output_long (abfd, 0);
 784           sprintf (dummy_name, ".DUMMY%02d", last_index);
 785           _bfd_vms_output_counted (abfd, dummy_name);
 786           _bfd_vms_output_flush (abfd);
 787           last_index++;
 788         }
 789
 790       /* Don't know if this is neccesary for the linker but for now it keeps
 791          vms_slurp_gsd happy  */
 792
 793       sname = (char *)section->name;
 794       if (*sname == '.')
 795         {
 796           sname++;
 797           if ((*sname == 't') && (strcmp (sname, "text") == 0))
 798             sname = PRIV(is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME;
 799           else if ((*sname == 'd') && (strcmp (sname, "data") == 0))
 800             sname = PRIV(is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME;
 801           else if ((*sname == 'b') && (strcmp (sname, "bss") == 0))
 802             sname = EVAX_BSS_NAME;
 803           else if ((*sname == 'l') && (strcmp (sname, "link") == 0))
 804             sname = EVAX_LINK_NAME;
 805           else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0))
 806             sname = EVAX_READONLY_NAME;
 807           else if ((*sname == 'l') && (strcmp (sname, "literal") == 0))
 808             sname = EVAX_LITERAL_NAME;
 809           else if ((*sname == 'c') && (strcmp (sname, "comm") == 0))
 810             sname = EVAX_COMMON_NAME;
 811           else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0))
 812             sname = EVAX_LOCAL_NAME;
 813         }
 814       else
 815         sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ);
 816
 817       _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
 818       _bfd_vms_output_short (abfd, section->alignment_power & 0xff);
 819       if (bfd_is_com_section (section))
 820         {
 821           new_flags = (EGPS_S_V_OVR|EGPS_S_V_REL|EGPS_S_V_GBL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD|EGPS_S_V_COM);
 822         }
 823       else
 824         {
 825           new_flags = vms_esecflag_by_name (evax_section_flags, sname,
 826                                             section->_raw_size > 0);
 827         }
 828       _bfd_vms_output_short (abfd, new_flags);
 829       _bfd_vms_output_long (abfd, (unsigned long) section->_raw_size);
 830       _bfd_vms_output_counted (abfd, sname);
 831       _bfd_vms_output_flush (abfd);
 832
 833       last_index = section->index;
 834       section = section->next;
 835     }
 836
 837   /* output symbols  */
 838
 839 #if VMS_DEBUG
 840   vms_debug (3, "%d symbols found\n", abfd->symcount);
 841 #endif
 842
 843   bfd_set_start_address (abfd, (bfd_vma)-1);
 844
 845   for (symnum = 0; symnum < abfd->symcount; symnum++)
 846     {
 847       char *hash;
 848
 849       symbol = abfd->outsymbols[symnum];
 850       if (*(symbol->name) == '_')
 851         {
 852           if (strcmp (symbol->name, "__main") == 0)
 853             bfd_set_start_address (abfd, (bfd_vma)symbol->value);
 854         }
 855       old_flags = symbol->flags;
 856
 857       if (old_flags & BSF_FILE)
 858         continue;
 859
 860       if (((old_flags & (BSF_GLOBAL|BSF_WEAK)) == 0)    /* not xdef */
 861           && (!bfd_is_und_section (symbol->section)))   /* and not xref */
 862         continue;                                       /* dont output */
 863
 864       /* 13 bytes egsd, max 64 chars name -> should be 77 bytes  */
 865
 866       if (_bfd_vms_output_check (abfd, 80) < 0)
 867         {
 868           _bfd_vms_output_pop (abfd);
 869           _bfd_vms_output_end (abfd);
 870           _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
 871           _bfd_vms_output_long (abfd, 0);
 872           _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
 873         }
 874
 875       _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1);
 876
 877       _bfd_vms_output_short (abfd, 0);                  /* data type, alignment */
 878
 879       new_flags = 0;
 880
 881       if (old_flags & BSF_WEAK)
 882         new_flags |= EGSY_S_V_WEAK;
 883       if (bfd_is_com_section (symbol->section))         /* .comm  */
 884         new_flags |= (EGSY_S_V_WEAK|EGSY_S_V_COMM);
 885
 886       if (old_flags & BSF_FUNCTION)
 887         {
 888           new_flags |= EGSY_S_V_NORM;
 889           new_flags |= EGSY_S_V_REL;
 890         }
 891       if (old_flags & (BSF_GLOBAL|BSF_WEAK))
 892         {
 893           new_flags |= EGSY_S_V_DEF;
 894           if (!bfd_is_abs_section (symbol->section))
 895             new_flags |= EGSY_S_V_REL;
 896         }
 897       _bfd_vms_output_short (abfd, new_flags);
 898
 899       if (old_flags & (BSF_GLOBAL | BSF_WEAK))          /* symbol definition */
 900         {
 901           uquad code_address = 0;
 902           unsigned long ca_psindx = 0;
 903           unsigned long psindx;
 904
 905           if (old_flags & BSF_FUNCTION)
 906             {
 907               code_address = ((asymbol *) (symbol->udata.p))->value;
 908               ca_psindx = ((asymbol *) (symbol->udata.p))->section->index;
 909             }
 910           psindx = symbol->section->index;
 911
 912           _bfd_vms_output_quad (abfd, symbol->value);
 913           _bfd_vms_output_quad (abfd, code_address);
 914           _bfd_vms_output_long (abfd, ca_psindx);
 915           _bfd_vms_output_long (abfd, psindx);
 916         }
 917       hash = _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ);
 918       _bfd_vms_output_counted (abfd, hash);
 919
 920       _bfd_vms_output_flush (abfd);
 921
 922     }
 923
 924   _bfd_vms_output_alignment (abfd, 8);
 925   _bfd_vms_output_pop (abfd);
 926   _bfd_vms_output_end (abfd);
 927
 928   return 0;
 929 }