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 <ctype.h>
  25
  26 #include "bfd.h"
  27 #include "sysdep.h"
  28 #include "bfdlink.h"
  29 #include "libbfd.h"
  30
  31 #include "vms.h"
  32
  33 /*-----------------------------------------------------------------------------*/
  34
  35 /* typical sections for vax object files  */
  36
  37 #define VAX_CODE_NAME           "$CODE"
  38 #define VAX_DATA_NAME           "$DATA"
  39 #define VAX_ADDRESS_DATA_NAME   "$ADDRESS_DATA"
  40
  41 /* typical sections for evax object files  */
  42
  43 #define EVAX_ABS_NAME           "$ABS$"
  44 #define EVAX_CODE_NAME          "$CODE$"
  45 #define EVAX_LINK_NAME          "$LINK$"
  46 #define EVAX_DATA_NAME          "$DATA$"
  47 #define EVAX_BSS_NAME           "$BSS$"
  48 #define EVAX_READONLYADDR_NAME  "$READONLY_ADDR$"
  49 #define EVAX_READONLY_NAME      "$READONLY$"
  50 #define EVAX_LITERAL_NAME       "$LITERAL$"
  51 #define EVAX_COMMON_NAME        "$COMMON$"
  52 #define EVAX_LOCAL_NAME         "$LOCAL$"
  53
  54 struct sec_flags_struct {
  55   char *name;                   /* name of section */
  56   int vflags_always;
  57   flagword flags_always;        /* flags we set always */
  58   int vflags_hassize;
  59   flagword flags_hassize;       /* flags we set if the section has a size > 0 */
  60 };
  61
  62 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible  */
  63
  64 static struct sec_flags_struct vax_section_flags[] = {
  65   { VAX_CODE_NAME,
  66         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
  67         (SEC_CODE),
  68         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
  69         (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  70   { VAX_DATA_NAME,
  71         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
  72         (SEC_DATA),
  73         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
  74         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  75   { VAX_ADDRESS_DATA_NAME,
  76         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
  77         (SEC_DATA|SEC_READONLY),
  78         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
  79         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  80   { NULL,
  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_DATA),
  83         (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
  84         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
  85 };
  86
  87 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible  */
  88
  89 static struct sec_flags_struct evax_section_flags[] = {
  90   { EVAX_ABS_NAME,
  91         (EGPS_S_V_SHR),
  92         (SEC_DATA),
  93         (EGPS_S_V_SHR),
  94         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  95   { EVAX_CODE_NAME,
  96         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
  97         (SEC_CODE),
  98         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
  99         (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 100   { EVAX_LITERAL_NAME,
 101         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
 102         (SEC_DATA|SEC_READONLY),
 103         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
 104         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 105   { EVAX_LINK_NAME,
 106         (EGPS_S_V_REL|EGPS_S_V_RD),
 107         (SEC_DATA|SEC_READONLY),
 108         (EGPS_S_V_REL|EGPS_S_V_RD),
 109         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 110   { EVAX_DATA_NAME,
 111         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
 112         (SEC_DATA),
 113         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 114         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 115   { EVAX_BSS_NAME,
 116         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
 117         (SEC_NO_FLAGS),
 118         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
 119         (SEC_IN_MEMORY|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 120   { EVAX_READONLYADDR_NAME,
 121         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
 122         (SEC_DATA|SEC_READONLY),
 123         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
 124         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 125   { EVAX_READONLY_NAME,
 126         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
 127         (SEC_DATA|SEC_READONLY),
 128         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
 129         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 130   { EVAX_LOCAL_NAME,
 131         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 132         (SEC_DATA),
 133         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 134         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 135   { NULL,
 136         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 137         (SEC_DATA),
 138         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 139         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
 140 };
 141
 142 static flagword vms_secflag_by_name PARAMS ((bfd *, struct sec_flags_struct *, char *, int));
 143 static flagword vms_esecflag_by_name PARAMS ((struct sec_flags_struct *, char *, int));
 144
 145 /* Retrieve bfd section flags by name and size  */
 146
 147 static flagword
 148 vms_secflag_by_name (abfd, section_flags, name, hassize)
 149      bfd *abfd;
 150      struct sec_flags_struct *section_flags;
 151      char *name;
 152      int hassize;
 153 {
 154   int i = 0;
 155
 156   while (section_flags[i].name != NULL)
 157     {
 158       if ((PRIV(is_vax)?
 159             strcasecmp (name, section_flags[i].name):
 160             strcmp (name, section_flags[i].name)) == 0)
 161         {
 162           if (hassize)
 163             return section_flags[i].flags_hassize;
 164           else
 165             return section_flags[i].flags_always;
 166         }
 167       i++;
 168     }
 169   if (hassize)
 170     return section_flags[i].flags_hassize;
 171   return section_flags[i].flags_always;
 172 }
 173
 174 /* Retrieve vms section flags by name and size  */
 175
 176 static flagword
 177 vms_esecflag_by_name (section_flags, name, hassize)
 178      struct sec_flags_struct *section_flags;
 179      char *name;
 180      int hassize;
 181 {
 182   int i = 0;
 183
 184   while (section_flags[i].name != NULL)
 185     {
 186       if (strcmp (name, section_flags[i].name) == 0)
 187         {
 188           if (hassize)
 189             return section_flags[i].vflags_hassize;
 190           else
 191             return section_flags[i].vflags_always;
 192         }
 193       i++;
 194     }
 195   if (hassize)
 196     return section_flags[i].vflags_hassize;
 197   return section_flags[i].vflags_always;
 198 }
 199
 200 /*-----------------------------------------------------------------------------*/
 201 #if VMS_DEBUG
 202 /* debug */
 203
 204 struct flagdescstruct { char *name; flagword value; };
 205
 206 /* Convert flag to printable string  */
 207
 208 static char *
 209 flag2str(flagdesc, flags)
 210      struct flagdescstruct *flagdesc;
 211      flagword flags;
 212 {
 213
 214   static char res[64];
 215   int next = 0;
 216
 217   res[0] = 0;
 218   while (flagdesc->name != NULL)
 219     {
 220       if ((flags & flagdesc->value) != 0)
 221         {
 222           if (next)
 223             strcat(res, ",");
 224           else
 225             next = 1;
 226           strcat (res, flagdesc->name);
 227         }
 228       flagdesc++;
 229     }
 230   return res;
 231 }
 232 #endif
 233
 234 /*-----------------------------------------------------------------------------*/
 235 /* input routines */
 236
 237 /* Process GSD/EGSD record
 238    return 0 on success, -1 on error  */
 239
 240 int
 241 _bfd_vms_slurp_gsd (abfd, objtype)
 242      bfd *abfd;
 243      int objtype;
 244 {
 245 #if VMS_DEBUG
 246   static struct flagdescstruct gpsflagdesc[] =
 247   {
 248     { "PIC", 0x0001 },
 249     { "LIB", 0x0002 },
 250     { "OVR", 0x0004 },
 251     { "REL", 0x0008 },
 252     { "GBL", 0x0010 },
 253     { "SHR", 0x0020 },
 254     { "EXE", 0x0040 },
 255     { "RD",  0x0080 },
 256     { "WRT", 0x0100 },
 257     { "VEC", 0x0200 },
 258     { "NOMOD", 0x0400 },
 259     { "COM", 0x0800 },
 260     { NULL, 0 }
 261   };
 262
 263   static struct flagdescstruct gsyflagdesc[] =
 264   {
 265     { "WEAK", 0x0001 },
 266     { "DEF",  0x0002 },
 267     { "UNI",  0x0004 },
 268     { "REL",  0x0008 },
 269     { "COMM", 0x0010 },
 270     { "VECEP", 0x0020 },
 271     { "NORM", 0x0040 },
 272     { NULL, 0 }
 273   };
 274 #endif
 275
 276   int gsd_type, gsd_size;
 277   asection *section;
 278   unsigned char *vms_rec;
 279   flagword new_flags, old_flags;
 280   char *name;
 281   asymbol *symbol;
 282   vms_symbol_entry *entry;
 283   unsigned long base_addr;
 284   unsigned long align_addr;
 285   static unsigned int psect_idx = 0;
 286
 287 #if VMS_DEBUG
 288   vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype);
 289 #endif
 290
 291   switch (objtype)
 292     {
 293     case EOBJ_S_C_EGSD:
 294       PRIV(vms_rec) += 8;       /* skip type, size, l_temp */
 295       PRIV(rec_size) -= 8;
 296       break;
 297     case OBJ_S_C_GSD:
 298       PRIV(vms_rec) += 1;
 299       PRIV(rec_size) -= 1;
 300       break;
 301     default:
 302       return -1;
 303     }
 304
 305   /* calculate base address for each section  */
 306   base_addr = 0L;
 307
 308   abfd->symcount = 0;
 309
 310   while (PRIV(rec_size) > 0)
 311     {
 312       vms_rec = PRIV(vms_rec);
 313
 314       if (objtype == OBJ_S_C_GSD)
 315         {
 316           gsd_type = *vms_rec;
 317         }
 318       else
 319         {
 320           _bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size);
 321           gsd_type += EVAX_OFFSET;
 322         }
 323
 324 #if VMS_DEBUG
 325   vms_debug (3, "gsd_type %d\n", gsd_type);
 326 #endif
 327
 328       switch (gsd_type)
 329         {
 330           case GSD_S_C_PSC:
 331             {
 332               /*
 333                * program section definition
 334                */
 335
 336               asection *old_section = 0;
 337
 338 #if VMS_DEBUG
 339   vms_debug (4, "GSD_S_C_PSC\n");
 340 #endif
 341               /* If this section isn't a bfd section.  */
 342
 343               if (PRIV(is_vax) && (psect_idx < (abfd->section_count-1)))
 344                 {
 345                   /* check for temporary section from TIR record.  */
 346
 347                   if (psect_idx < PRIV(section_count))
 348                     old_section = PRIV(sections)[psect_idx];
 349                   else
 350                     old_section = 0;
 351                 }
 352
 353               name = _bfd_vms_save_counted_string (vms_rec + 8);
 354               section = bfd_make_section (abfd, name);
 355               if (!section)
 356                 {
 357                   (*_bfd_error_handler) (_("bfd_make_section (%s) failed"),
 358                                          name);
 359                   return -1;
 360                 }
 361               old_flags = bfd_getl16 (vms_rec + 2);
 362               section->_raw_size = bfd_getl32 (vms_rec + 4);  /* allocation */
 363               new_flags = vms_secflag_by_name (abfd, vax_section_flags, name,
 364                                                section->_raw_size > 0);
 365               if (old_flags & EGPS_S_V_REL)
 366                 new_flags |= SEC_RELOC;
 367               if (old_flags & GPS_S_M_OVR)
 368                 new_flags |= SEC_IS_COMMON;
 369               if (!bfd_set_section_flags (abfd, section, new_flags))
 370                 {
 371                   (*_bfd_error_handler)
 372                     (_("bfd_set_section_flags (%s, %x) failed"),
 373                      name, new_flags);
 374                   return -1;
 375                 }
 376               section->alignment_power = vms_rec[1];
 377               align_addr = (1 << section->alignment_power);
 378               if ((base_addr % align_addr) != 0)
 379                 base_addr += (align_addr - (base_addr % align_addr));
 380               section->vma = (bfd_vma)base_addr;
 381               base_addr += section->_raw_size;
 382
 383               /* global section is common symbol  */
 384
 385               if (old_flags & GPS_S_M_GBL)
 386                 {
 387                   entry = _bfd_vms_enter_symbol (abfd, name);
 388                   if (entry == (vms_symbol_entry *)NULL)
 389                     {
 390                       bfd_set_error (bfd_error_no_memory);
 391                       return -1;
 392                     }
 393                   symbol = entry->symbol;
 394
 395                   symbol->value = 0;
 396                   symbol->section = section;
 397                   symbol->flags = (BSF_GLOBAL|BSF_SECTION_SYM|BSF_OLD_COMMON);
 398                 }
 399
 400               /* copy saved contents if old_section set  */
 401
 402               if (old_section != 0)
 403                 {
 404                   section->contents = old_section->contents;
 405                   if (section->_raw_size < old_section->_raw_size)
 406                     {
 407                       (*_bfd_error_handler)
 408                         (_("Size mismatch section %s=%lx, %s=%lx"),
 409                          old_section->name,
 410                          (unsigned long) old_section->_raw_size,
 411                          section->name,
 412                          (unsigned long) section->_raw_size);
 413                       return -1;
 414                     }
 415                   else if (section->_raw_size > old_section->_raw_size)
 416                     {
 417                       section->contents = ((unsigned char *)
 418                                            bfd_realloc (old_section->contents,
 419                                                         section->_raw_size));
 420                       if (section->contents == NULL)
 421                         {
 422                           bfd_set_error (bfd_error_no_memory);
 423                           return -1;
 424                         }
 425                     }
 426                 }
 427               else
 428                 {
 429                   section->contents = ((unsigned char *)
 430                                        bfd_malloc (section->_raw_size));
 431                   if (section->contents == NULL)
 432                     {
 433                       bfd_set_error (bfd_error_no_memory);
 434                       return -1;
 435                     }
 436                   memset (section->contents, 0, (size_t) section->_raw_size);
 437                 }
 438               section->_cooked_size = section->_raw_size;
 439 #if VMS_DEBUG
 440               vms_debug (4, "gsd psc %d (%s, flags %04x=%s) ",
 441                          section->index, name, old_flags, flag2str (gpsflagdesc, old_flags));
 442               vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n",
 443                          section->_raw_size, section->vma, section->contents);
 444 #endif
 445
 446               gsd_size = vms_rec[8] + 9;
 447
 448               psect_idx++;
 449             }
 450           break;
 451
 452           case GSD_S_C_EPM:
 453           case GSD_S_C_EPMW:
 454 #if VMS_DEBUG
 455                 vms_debug(4, "gsd epm\n");
 456 #endif
 457           /*FALLTHRU*/
 458           case GSD_S_C_SYM:
 459           case GSD_S_C_SYMW:
 460             {
 461               int name_offset = 0, value_offset = 0;
 462
 463               /*
 464                * symbol specification (definition or reference)
 465                */
 466
 467 #if VMS_DEBUG
 468   vms_debug (4, "GSD_S_C_SYM(W)\n");
 469 #endif
 470               old_flags = bfd_getl16 (vms_rec + 2);
 471               new_flags = BSF_NO_FLAGS;
 472
 473               if (old_flags & GSY_S_M_WEAK)
 474                 new_flags |= BSF_WEAK;
 475
 476               switch (gsd_type)
 477                 {
 478                 case GSD_S_C_EPM:
 479                   name_offset = 11;
 480                   value_offset = 5;
 481                   new_flags |= BSF_FUNCTION;
 482                   break;
 483                 case GSD_S_C_EPMW:
 484                   name_offset = 12;
 485                   value_offset = 6;
 486                   new_flags |= BSF_FUNCTION;
 487                   break;
 488                 case GSD_S_C_SYM:
 489                   if (old_flags & GSY_S_M_DEF)  /* symbol definition */
 490                     name_offset = 9;
 491                   else
 492                     name_offset = 4;
 493                   value_offset = 5;
 494                   break;
 495                 case GSD_S_C_SYMW:
 496                   if (old_flags & GSY_S_M_DEF)  /* symbol definition */
 497                     name_offset = 10;
 498                   else
 499                     name_offset = 5;
 500                   value_offset = 6;
 501                   break;
 502                 }
 503
 504               /* save symbol in vms_symbol_table */
 505
 506               entry = _bfd_vms_enter_symbol (abfd,
 507                         _bfd_vms_save_counted_string (vms_rec + name_offset));
 508               if (entry == (vms_symbol_entry *)NULL)
 509                 {
 510                   bfd_set_error (bfd_error_no_memory);
 511                   return -1;
 512                 }
 513               symbol = entry->symbol;
 514
 515               if (old_flags & GSY_S_M_DEF)      /* symbol definition */
 516                 {
 517                   int psect;
 518
 519                   symbol->value = bfd_getl32 (vms_rec+value_offset);
 520                   if ((gsd_type == GSD_S_C_SYMW)
 521                       || (gsd_type == GSD_S_C_EPMW))
 522                     psect = bfd_getl16 (vms_rec + value_offset - 2);
 523                   else
 524                     psect = vms_rec[value_offset-1];
 525
 526                   symbol->section = (asection *)psect;
 527 #if VMS_DEBUG
 528                   vms_debug(4, "gsd sym def #%d (%s, %d [%p], %04x=%s)\n", abfd->symcount,
 529                                 symbol->name, (int)symbol->section, symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
 530 #endif
 531                 }
 532               else      /* symbol reference */
 533                 {
 534                   symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
 535 #if VMS_DEBUG
 536                   vms_debug (4, "gsd sym ref #%d (%s, %s [%p], %04x=%s)\n", abfd->symcount,
 537                                 symbol->name, symbol->section->name, symbol->section, old_flags, flag2str (gsyflagdesc, old_flags));
 538 #endif
 539                 }
 540
 541               gsd_size = vms_rec[name_offset] + name_offset + 1;
 542               symbol->flags = new_flags;
 543             }
 544
 545           break;
 546
 547           case GSD_S_C_PRO:
 548           case GSD_S_C_PROW:
 549 #if VMS_DEBUG
 550                 vms_debug(4, "gsd pro\n");
 551 #endif
 552           break;
 553           case GSD_S_C_IDC:
 554 #if VMS_DEBUG
 555                 vms_debug(4, "gsd idc\n");
 556 #endif
 557           break;
 558           case GSD_S_C_ENV:
 559 #if VMS_DEBUG
 560                 vms_debug(4, "gsd env\n");
 561 #endif
 562           break;
 563           case GSD_S_C_LSY:
 564 #if VMS_DEBUG
 565                 vms_debug(4, "gsd lsy\n");
 566 #endif
 567           break;
 568           case GSD_S_C_LEPM:
 569 #if VMS_DEBUG
 570                 vms_debug(4, "gsd lepm\n");
 571 #endif
 572           break;
 573           case GSD_S_C_LPRO:
 574 #if VMS_DEBUG
 575                 vms_debug(4, "gsd lpro\n");
 576 #endif
 577           break;
 578           case GSD_S_C_SPSC:
 579 #if VMS_DEBUG
 580                 vms_debug(4, "gsd spsc\n");
 581 #endif
 582           break;
 583           case GSD_S_C_SYMV:
 584 #if VMS_DEBUG
 585                 vms_debug(4, "gsd symv\n");
 586 #endif
 587           break;
 588           case GSD_S_C_EPMV:
 589 #if VMS_DEBUG
 590                 vms_debug(4, "gsd epmv\n");
 591 #endif
 592           break;
 593           case GSD_S_C_PROV:
 594 #if VMS_DEBUG
 595                 vms_debug(4, "gsd prov\n");
 596 #endif
 597           break;
 598
 599         case EGSD_S_C_PSC + EVAX_OFFSET:
 600           {
 601             /* program section definition  */
 602
 603             name = _bfd_vms_save_counted_string (vms_rec+12);
 604             section = bfd_make_section (abfd, name);
 605             if (!section)
 606               return -1;
 607             old_flags = bfd_getl16 (vms_rec + 6);
 608             section->_raw_size = bfd_getl32 (vms_rec + 8);      /* allocation */
 609             new_flags = vms_secflag_by_name (abfd, evax_section_flags, name,
 610                                              section->_raw_size > 0);
 611             if (old_flags & EGPS_S_V_REL)
 612               new_flags |= SEC_RELOC;
 613             if (!bfd_set_section_flags (abfd, section, new_flags))
 614               return -1;
 615             section->alignment_power = vms_rec[4];
 616             align_addr = (1 << section->alignment_power);
 617             if ((base_addr % align_addr) != 0)
 618               base_addr += (align_addr - (base_addr % align_addr));
 619             section->vma = (bfd_vma)base_addr;
 620             base_addr += section->_raw_size;
 621             section->contents = ((unsigned char *)
 622                                  bfd_malloc (section->_raw_size));
 623             if (section->contents == NULL)
 624               return -1;
 625             memset (section->contents, 0, (size_t) section->_raw_size);
 626             section->_cooked_size = section->_raw_size;
 627 #if VMS_DEBUG
 628             vms_debug(4, "egsd psc %d (%s, flags %04x=%s) ",
 629                        section->index, name, old_flags, flag2str(gpsflagdesc, old_flags));
 630             vms_debug(4, "%d bytes at 0x%08lx (mem %p)\n",
 631                        section->_raw_size, section->vma, section->contents);
 632 #endif
 633           }
 634           break;
 635
 636         case EGSD_S_C_SYM + EVAX_OFFSET:
 637           {
 638             /* symbol specification (definition or reference)  */
 639
 640             symbol = _bfd_vms_make_empty_symbol (abfd);
 641             if (symbol == 0)
 642               return -1;
 643
 644             old_flags = bfd_getl16 (vms_rec + 6);
 645             new_flags = BSF_NO_FLAGS;
 646
 647             if (old_flags & EGSY_S_V_WEAK)
 648               new_flags |= BSF_WEAK;
 649
 650             if (vms_rec[6] & EGSY_S_V_DEF)      /* symbol definition */
 651               {
 652                 symbol->name =
 653                   _bfd_vms_save_counted_string (vms_rec+32);
 654                 if (old_flags & EGSY_S_V_NORM)
 655                   {         /* proc def */
 656                     new_flags |= BSF_FUNCTION;
 657                   }
 658                 symbol->value = bfd_getl64 (vms_rec+8);
 659                 symbol->section = (asection *) ((unsigned long) bfd_getl32 (vms_rec+28));
 660 #if VMS_DEBUG
 661                 vms_debug(4, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount,
 662                            symbol->name, (int)symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
 663 #endif
 664               }
 665             else        /* symbol reference */
 666               {
 667                 symbol->name =
 668                   _bfd_vms_save_counted_string (vms_rec+8);
 669 #if VMS_DEBUG
 670                 vms_debug(4, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount,
 671                            symbol->name, old_flags, flag2str(gsyflagdesc, old_flags));
 672 #endif
 673                 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
 674               }
 675
 676             symbol->flags = new_flags;
 677
 678             /* save symbol in vms_symbol_table  */
 679
 680             entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV(vms_symbol_table), symbol->name, true, false);
 681             if (entry == (vms_symbol_entry *)NULL)
 682               {
 683                 bfd_set_error (bfd_error_no_memory);
 684                 return -1;
 685               }
 686             if (entry->symbol != (asymbol *)NULL)
 687               {                                 /* FIXME ?, DEC C generates this */
 688 #if VMS_DEBUG
 689                 vms_debug(4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name);
 690 #endif
 691               }
 692             else
 693               {
 694                 entry->symbol = symbol;
 695                 PRIV(gsd_sym_count)++;
 696                 abfd->symcount++;
 697               }
 698           }
 699           break;
 700
 701         case EGSD_S_C_IDC + EVAX_OFFSET:
 702           break;
 703
 704         default:
 705           (*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type);
 706           bfd_set_error (bfd_error_bad_value);
 707           return -1;
 708
 709         } /* switch */
 710
 711       PRIV(rec_size) -= gsd_size;
 712       PRIV(vms_rec) += gsd_size;
 713
 714     } /* while (recsize > 0) */
 715
 716   if (abfd->symcount > 0)
 717     abfd->flags |= HAS_SYMS;
 718
 719   return 0;
 720 }
 721
 722 /*-----------------------------------------------------------------------------*/
 723 /* output routines */
 724
 725 /* Write section and symbol directory of bfd abfd  */
 726
 727 int
 728 _bfd_vms_write_gsd (abfd, objtype)
 729      bfd *abfd;
 730      int objtype ATTRIBUTE_UNUSED;
 731 {
 732   asection *section;
 733   asymbol *symbol;
 734   unsigned int symnum;
 735   int last_index = -1;
 736   char dummy_name[10];
 737   char *sname;
 738   flagword new_flags, old_flags;
 739
 740 #if VMS_DEBUG
 741   vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype);
 742 #endif
 743
 744   /* output sections  */
 745
 746   section = abfd->sections;
 747 #if VMS_DEBUG
 748   vms_debug (3, "%d sections found\n", abfd->section_count);
 749 #endif
 750
 751   /* egsd is quadword aligned  */
 752
 753   _bfd_vms_output_alignment (abfd, 8);
 754
 755   _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
 756   _bfd_vms_output_long (abfd, 0);
 757   _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
 758
 759   while (section != 0)
 760     {
 761 #if VMS_DEBUG
 762   vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->_raw_size);
 763 #endif
 764
 765         /* 13 bytes egsd, max 31 chars name -> should be 44 bytes */
 766       if (_bfd_vms_output_check (abfd, 64) < 0)
 767         {
 768           _bfd_vms_output_pop (abfd);
 769           _bfd_vms_output_end (abfd);
 770           _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
 771           _bfd_vms_output_long (abfd, 0);
 772           _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
 773         }
 774
 775         /* Create dummy sections to keep consecutive indices */
 776
 777       while (section->index - last_index > 1)
 778         {
 779 #if VMS_DEBUG
 780           vms_debug (3, "index %d, last %d\n", section->index, last_index);
 781 #endif
 782           _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
 783           _bfd_vms_output_short (abfd, 0);
 784           _bfd_vms_output_short (abfd, 0);
 785           _bfd_vms_output_long (abfd, 0);
 786           sprintf (dummy_name, ".DUMMY%02d", last_index);
 787           _bfd_vms_output_counted (abfd, dummy_name);
 788           _bfd_vms_output_flush (abfd);
 789           last_index++;
 790         }
 791
 792       /* Don't know if this is neccesary for the linker but for now it keeps
 793          vms_slurp_gsd happy  */
 794
 795       sname = (char *)section->name;
 796       if (*sname == '.')
 797         {
 798           sname++;
 799           if ((*sname == 't') && (strcmp (sname, "text") == 0))
 800             sname = PRIV(is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME;
 801           else if ((*sname == 'd') && (strcmp (sname, "data") == 0))
 802             sname = PRIV(is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME;
 803           else if ((*sname == 'b') && (strcmp (sname, "bss") == 0))
 804             sname = EVAX_BSS_NAME;
 805           else if ((*sname == 'l') && (strcmp (sname, "link") == 0))
 806             sname = EVAX_LINK_NAME;
 807           else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0))
 808             sname = EVAX_READONLY_NAME;
 809           else if ((*sname == 'l') && (strcmp (sname, "literal") == 0))
 810             sname = EVAX_LITERAL_NAME;
 811           else if ((*sname == 'c') && (strcmp (sname, "comm") == 0))
 812             sname = EVAX_COMMON_NAME;
 813           else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0))
 814             sname = EVAX_LOCAL_NAME;
 815         }
 816       else
 817         sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ);
 818
 819       _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
 820       _bfd_vms_output_short (abfd, section->alignment_power & 0xff);
 821       if (bfd_is_com_section (section))
 822         {
 823           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);
 824         }
 825       else
 826         {
 827           new_flags = vms_esecflag_by_name (evax_section_flags, sname,
 828                                             section->_raw_size > 0);
 829         }
 830       _bfd_vms_output_short (abfd, new_flags);
 831       _bfd_vms_output_long (abfd, (unsigned long) section->_raw_size);
 832       _bfd_vms_output_counted (abfd, sname);
 833       _bfd_vms_output_flush (abfd);
 834
 835       last_index = section->index;
 836       section = section->next;
 837     }
 838
 839   /* output symbols  */
 840
 841 #if VMS_DEBUG
 842   vms_debug (3, "%d symbols found\n", abfd->symcount);
 843 #endif
 844
 845   bfd_set_start_address (abfd, (bfd_vma)-1);
 846
 847   for (symnum = 0; symnum < abfd->symcount; symnum++)
 848     {
 849       char *hash;
 850
 851       symbol = abfd->outsymbols[symnum];
 852       if (*(symbol->name) == '_')
 853         {
 854           if (strcmp (symbol->name, "__main") == 0)
 855             bfd_set_start_address (abfd, (bfd_vma)symbol->value);
 856         }
 857       old_flags = symbol->flags;
 858
 859       if (old_flags & BSF_FILE)
 860         continue;
 861
 862       if (((old_flags & (BSF_GLOBAL|BSF_WEAK)) == 0)    /* not xdef */
 863           && (!bfd_is_und_section (symbol->section)))   /* and not xref */
 864         continue;                                       /* dont output */
 865
 866       /* 13 bytes egsd, max 64 chars name -> should be 77 bytes  */
 867
 868       if (_bfd_vms_output_check (abfd, 80) < 0)
 869         {
 870           _bfd_vms_output_pop (abfd);
 871           _bfd_vms_output_end (abfd);
 872           _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
 873           _bfd_vms_output_long (abfd, 0);
 874           _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
 875         }
 876
 877       _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1);
 878
 879       _bfd_vms_output_short (abfd, 0);                  /* data type, alignment */
 880
 881       new_flags = 0;
 882
 883       if (old_flags & BSF_WEAK)
 884         new_flags |= EGSY_S_V_WEAK;
 885       if (bfd_is_com_section (symbol->section))         /* .comm  */
 886         new_flags |= (EGSY_S_V_WEAK|EGSY_S_V_COMM);
 887
 888       if (old_flags & BSF_FUNCTION)
 889         {
 890           new_flags |= EGSY_S_V_NORM;
 891           new_flags |= EGSY_S_V_REL;
 892         }
 893       if (old_flags & (BSF_GLOBAL|BSF_WEAK))
 894         {
 895           new_flags |= EGSY_S_V_DEF;
 896           if (!bfd_is_abs_section (symbol->section))
 897             new_flags |= EGSY_S_V_REL;
 898         }
 899       _bfd_vms_output_short (abfd, new_flags);
 900
 901       if (old_flags & (BSF_GLOBAL | BSF_WEAK))          /* symbol definition */
 902         {
 903           uquad code_address = 0;
 904           unsigned long ca_psindx = 0;
 905           unsigned long psindx;
 906
 907           if (old_flags & BSF_FUNCTION)
 908             {
 909               code_address = ((asymbol *) (symbol->udata.p))->value;
 910               ca_psindx = ((asymbol *) (symbol->udata.p))->section->index;
 911             }
 912           psindx = symbol->section->index;
 913
 914           _bfd_vms_output_quad (abfd, symbol->value);
 915           _bfd_vms_output_quad (abfd, code_address);
 916           _bfd_vms_output_long (abfd, ca_psindx);
 917           _bfd_vms_output_long (abfd, psindx);
 918         }
 919       hash = _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ);
 920       _bfd_vms_output_counted (abfd, hash);
 921
 922       _bfd_vms_output_flush (abfd);
 923
 924     }
 925
 926   _bfd_vms_output_alignment (abfd, 8);
 927   _bfd_vms_output_pop (abfd);
 928   _bfd_vms_output_end (abfd);
 929
 930   return 0;
 931 }