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 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
  25 #include <ctype.h>
  26
  27 #include "bfd.h"
  28 #include "sysdep.h"
  29 #include "bfdlink.h"
  30 #include "libbfd.h"
  31
  32 #include "vms.h"
  33
  34 /*-----------------------------------------------------------------------------*/
  35
  36 /* typical sections for vax object files  */
  37
  38 #define VAX_CODE_NAME           "$CODE"
  39 #define VAX_DATA_NAME           "$DATA"
  40 #define VAX_ADDRESS_DATA_NAME   "$ADDRESS_DATA"
  41
  42 /* typical sections for evax object files  */
  43
  44 #define EVAX_ABS_NAME           "$ABS$"
  45 #define EVAX_CODE_NAME          "$CODE$"
  46 #define EVAX_LINK_NAME          "$LINK$"
  47 #define EVAX_DATA_NAME          "$DATA$"
  48 #define EVAX_BSS_NAME           "$BSS$"
  49 #define EVAX_READONLYADDR_NAME  "$READONLY_ADDR$"
  50 #define EVAX_READONLY_NAME      "$READONLY$"
  51 #define EVAX_LITERAL_NAME       "$LITERAL$"
  52 #define EVAX_COMMON_NAME        "$COMMON$"
  53 #define EVAX_LOCAL_NAME         "$LOCAL$"
  54
  55 struct sec_flags_struct {
  56   char *name;                   /* name of section */
  57   int vflags_always;
  58   flagword flags_always;        /* flags we set always */
  59   int vflags_hassize;
  60   flagword flags_hassize;       /* flags we set if the section has a size > 0 */
  61 };
  62
  63 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible  */
  64
  65 static struct sec_flags_struct vax_section_flags[] = {
  66   { VAX_CODE_NAME,
  67         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
  68         (SEC_CODE),
  69         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
  70         (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  71   { VAX_DATA_NAME,
  72         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
  73         (SEC_DATA),
  74         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
  75         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  76   { VAX_ADDRESS_DATA_NAME,
  77         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
  78         (SEC_DATA|SEC_READONLY),
  79         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
  80         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  81   { NULL,
  82         (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
  83         (SEC_DATA),
  84         (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
  85         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
  86 };
  87
  88
  89 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible  */
  90
  91 static struct sec_flags_struct evax_section_flags[] = {
  92   { EVAX_ABS_NAME,
  93         (EGPS_S_V_SHR),
  94         (SEC_DATA),
  95         (EGPS_S_V_SHR),
  96         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  97   { EVAX_CODE_NAME,
  98         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
  99         (SEC_CODE),
 100         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
 101         (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 102   { EVAX_LITERAL_NAME,
 103         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
 104         (SEC_DATA|SEC_READONLY),
 105         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
 106         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 107   { EVAX_LINK_NAME,
 108         (EGPS_S_V_REL|EGPS_S_V_RD),
 109         (SEC_DATA|SEC_READONLY),
 110         (EGPS_S_V_REL|EGPS_S_V_RD),
 111         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 112   { EVAX_DATA_NAME,
 113         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
 114         (SEC_DATA),
 115         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 116         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 117   { EVAX_BSS_NAME,
 118         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
 119         (SEC_NO_FLAGS),
 120         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
 121         (SEC_IN_MEMORY|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 122   { EVAX_READONLYADDR_NAME,
 123         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
 124         (SEC_DATA|SEC_READONLY),
 125         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
 126         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 127   { EVAX_READONLY_NAME,
 128         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
 129         (SEC_DATA|SEC_READONLY),
 130         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
 131         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
 132   { EVAX_LOCAL_NAME,
 133         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 134         (SEC_DATA),
 135         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 136         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
 137   { NULL,
 138         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 139         (SEC_DATA),
 140         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
 141         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
 142 };
 143
 144 /* Retrieve bfd section flags by name and size  */
 145
 146 static flagword
 147 vms_secflag_by_name (abfd, section_flags, name, size)
 148      bfd *abfd;
 149      struct sec_flags_struct *section_flags;
 150      char *name;
 151      int size;
 152 {
 153   int i = 0;
 154
 155   while (section_flags[i].name != NULL)
 156     {
 157       if ((PRIV(is_vax)?
 158             strcasecmp (name, section_flags[i].name):
 159             strcmp (name, section_flags[i].name)) == 0)
 160         {
 161           if (size > 0)
 162             return section_flags[i].flags_hassize;
 163           else
 164             return section_flags[i].flags_always;
 165         }
 166       i++;
 167     }
 168   if (size > 0)
 169     return section_flags[i].flags_hassize;
 170   return section_flags[i].flags_always;
 171 }
 172
 173
 174 /* Retrieve vms section flags by name and size  */
 175
 176 static flagword
 177 vms_esecflag_by_name (section_flags, name, size)
 178      struct sec_flags_struct *section_flags;
 179      char *name;
 180      int size;
 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 (size > 0)
 189             return section_flags[i].vflags_hassize;
 190           else
 191             return section_flags[i].vflags_always;
 192         }
 193       i++;
 194     }
 195   if (size > 0)
 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, section->_raw_size);
 364               if (old_flags & EGPS_S_V_REL)
 365                 new_flags |= SEC_RELOC;
 366               if (old_flags & GPS_S_M_OVR)
 367                 new_flags |= SEC_IS_COMMON;
 368               if (!bfd_set_section_flags (abfd, section, new_flags))
 369                 {
 370                   (*_bfd_error_handler)
 371                     (_("bfd_set_section_flags (%s, %x) failed"),
 372                      name, new_flags);
 373                   return -1;
 374                 }
 375               section->alignment_power = vms_rec[1];
 376               align_addr = (1 << section->alignment_power);
 377               if ((base_addr % align_addr) != 0)
 378                 base_addr += (align_addr - (base_addr % align_addr));
 379               section->vma = (bfd_vma)base_addr;
 380               base_addr += section->_raw_size;
 381
 382               /* global section is common symbol  */
 383
 384               if (old_flags & GPS_S_M_GBL)
 385                 {
 386                   entry = _bfd_vms_enter_symbol (abfd, name);
 387                   if (entry == (vms_symbol_entry *)NULL)
 388                     {
 389                       bfd_set_error (bfd_error_no_memory);
 390                       return -1;
 391                     }
 392                   symbol = entry->symbol;
 393
 394                   symbol->value = 0;
 395                   symbol->section = section;
 396                   symbol->flags = (BSF_GLOBAL|BSF_SECTION_SYM|BSF_OLD_COMMON);
 397                 }
 398
 399               /* copy saved contents if old_section set  */
 400
 401               if (old_section != 0)
 402                 {
 403                   section->contents = old_section->contents;
 404                   if (section->_raw_size < old_section->_raw_size)
 405                     {
 406                       (*_bfd_error_handler)
 407                         (_("Size mismatch section %s=%lx, %s=%lx"),
 408                          old_section->name,
 409                          (unsigned long) old_section->_raw_size,
 410                          section->name,
 411                          (unsigned long) section->_raw_size);
 412                       return -1;
 413                     }
 414                   else if (section->_raw_size > old_section->_raw_size)
 415                     {
 416                       section->contents = ((unsigned char *)
 417                                     bfd_realloc (old_section->contents, 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, value_offset;
 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, (int) section->_raw_size);
 608             if (old_flags & EGPS_S_V_REL)
 609               new_flags |= SEC_RELOC;
 610             if (!bfd_set_section_flags (abfd, section, new_flags))
 611               return -1;
 612             section->alignment_power = vms_rec[4];
 613             align_addr = (1 << section->alignment_power);
 614             if ((base_addr % align_addr) != 0)
 615               base_addr += (align_addr - (base_addr % align_addr));
 616             section->vma = (bfd_vma)base_addr;
 617             base_addr += section->_raw_size;
 618             section->contents = ((unsigned char *)
 619                                  bfd_malloc (section->_raw_size));
 620             if (section->contents == NULL)
 621               return -1;
 622             memset (section->contents, 0, (size_t) section->_raw_size);
 623             section->_cooked_size = section->_raw_size;
 624 #if VMS_DEBUG
 625             vms_debug(4, "egsd psc %d (%s, flags %04x=%s) ",
 626                        section->index, name, old_flags, flag2str(gpsflagdesc, old_flags));
 627             vms_debug(4, "%d bytes at 0x%08lx (mem %p)\n",
 628                        section->_raw_size, section->vma, section->contents);
 629 #endif
 630           }
 631           break;
 632
 633         case EGSD_S_C_SYM + EVAX_OFFSET:
 634           {
 635             /* symbol specification (definition or reference)  */
 636
 637             symbol = _bfd_vms_make_empty_symbol (abfd);
 638             if (symbol == 0)
 639               return -1;
 640
 641             old_flags = bfd_getl16 (vms_rec + 6);
 642             new_flags = BSF_NO_FLAGS;
 643
 644             if (old_flags & EGSY_S_V_WEAK)
 645               new_flags |= BSF_WEAK;
 646
 647             if (vms_rec[6] & EGSY_S_V_DEF)      /* symbol definition */
 648               {
 649                 symbol->name =
 650                   _bfd_vms_save_counted_string (vms_rec+32);
 651                 if (old_flags & EGSY_S_V_NORM)
 652                   {         /* proc def */
 653                     new_flags |= BSF_FUNCTION;
 654                   }
 655                 symbol->value = bfd_getl64 (vms_rec+8);
 656                 symbol->section = (asection *)((unsigned long) bfd_getl32 (vms_rec+28));
 657 #if VMS_DEBUG
 658                 vms_debug(4, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount,
 659                            symbol->name, (int)symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
 660 #endif
 661               }
 662             else        /* symbol reference */
 663               {
 664                 symbol->name =
 665                   _bfd_vms_save_counted_string (vms_rec+8);
 666 #if VMS_DEBUG
 667                 vms_debug(4, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount,
 668                            symbol->name, old_flags, flag2str(gsyflagdesc, old_flags));
 669 #endif
 670                 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
 671               }
 672
 673             symbol->flags = new_flags;
 674
 675             /* save symbol in vms_symbol_table  */
 676
 677             entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV(vms_symbol_table), symbol->name, true, false);
 678             if (entry == (vms_symbol_entry *)NULL)
 679               {
 680                 bfd_set_error (bfd_error_no_memory);
 681                 return -1;
 682               }
 683             if (entry->symbol != (asymbol *)NULL)
 684               {                                 /* FIXME ?, DEC C generates this */
 685 #if VMS_DEBUG
 686                 vms_debug(4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name);
 687 #endif
 688               }
 689             else
 690               {
 691                 entry->symbol = symbol;
 692                 PRIV(gsd_sym_count)++;
 693                 abfd->symcount++;
 694               }
 695           }
 696           break;
 697
 698         case EGSD_S_C_IDC + EVAX_OFFSET:
 699           break;
 700
 701         default:
 702           (*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type);
 703           bfd_set_error (bfd_error_bad_value);
 704           return -1;
 705
 706         } /* switch */
 707
 708       PRIV(rec_size) -= gsd_size;
 709       PRIV(vms_rec) += gsd_size;
 710
 711     } /* while (recsize > 0) */
 712
 713   if (abfd->symcount > 0)
 714     abfd->flags |= HAS_SYMS;
 715
 716   return 0;
 717 }
 718
 719 /*-----------------------------------------------------------------------------*/
 720 /* output routines */
 721
 722 /* Write section and symbol directory of bfd abfd  */
 723
 724 int
 725 _bfd_vms_write_gsd (abfd, objtype)
 726      bfd *abfd;
 727      int objtype ATTRIBUTE_UNUSED;
 728 {
 729   asection *section;
 730   asymbol *symbol;
 731   unsigned int symnum;
 732   int last_index = -1;
 733   char dummy_name[10];
 734   char *sname;
 735   flagword new_flags, old_flags;
 736
 737 #if VMS_DEBUG
 738   vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype);
 739 #endif
 740
 741   /* output sections  */
 742
 743   section = abfd->sections;
 744 #if VMS_DEBUG
 745   vms_debug (3, "%d sections found\n", abfd->section_count);
 746 #endif
 747
 748   /* egsd is quadword aligned  */
 749
 750   _bfd_vms_output_alignment (abfd, 8);
 751
 752   _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
 753   _bfd_vms_output_long (abfd, 0);
 754   _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
 755
 756   while (section != 0)
 757     {
 758 #if VMS_DEBUG
 759   vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->_raw_size);
 760 #endif
 761
 762         /* 13 bytes egsd, max 31 chars name -> should be 44 bytes */
 763       if (_bfd_vms_output_check (abfd, 64) < 0)
 764         {
 765           _bfd_vms_output_pop (abfd);
 766           _bfd_vms_output_end (abfd);
 767           _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
 768           _bfd_vms_output_long (abfd, 0);
 769           _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
 770         }
 771
 772         /* Create dummy sections to keep consecutive indices */
 773
 774       while (section->index - last_index > 1)
 775         {
 776 #if VMS_DEBUG
 777           vms_debug (3, "index %d, last %d\n", section->index, last_index);
 778 #endif
 779           _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
 780           _bfd_vms_output_short (abfd, 0);
 781           _bfd_vms_output_short (abfd, 0);
 782           _bfd_vms_output_long (abfd, 0);
 783           sprintf (dummy_name, ".DUMMY%02d", last_index);
 784           _bfd_vms_output_counted (abfd, dummy_name);
 785           _bfd_vms_output_flush (abfd);
 786           last_index++;
 787         }
 788
 789       /* Don't know if this is neccesary for the linker but for now it keeps
 790          vms_slurp_gsd happy  */
 791
 792       sname = (char *)section->name;
 793       if (*sname == '.')
 794         {
 795           sname++;
 796           if ((*sname == 't') && (strcmp (sname, "text") == 0))
 797             sname = PRIV(is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME;
 798           else if ((*sname == 'd') && (strcmp (sname, "data") == 0))
 799             sname = PRIV(is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME;
 800           else if ((*sname == 'b') && (strcmp (sname, "bss") == 0))
 801             sname = EVAX_BSS_NAME;
 802           else if ((*sname == 'l') && (strcmp (sname, "link") == 0))
 803             sname = EVAX_LINK_NAME;
 804           else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0))
 805             sname = EVAX_READONLY_NAME;
 806           else if ((*sname == 'l') && (strcmp (sname, "literal") == 0))
 807             sname = EVAX_LITERAL_NAME;
 808           else if ((*sname == 'c') && (strcmp (sname, "comm") == 0))
 809             sname = EVAX_COMMON_NAME;
 810           else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0))
 811             sname = EVAX_LOCAL_NAME;
 812         }
 813       else
 814         sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ);
 815
 816       _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
 817       _bfd_vms_output_short (abfd, section->alignment_power & 0xff);
 818       if (bfd_is_com_section (section))
 819         {
 820           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);
 821         }
 822       else
 823         {
 824           new_flags = vms_esecflag_by_name (evax_section_flags, sname, section->_raw_size);
 825         }
 826       _bfd_vms_output_short (abfd, new_flags);
 827       _bfd_vms_output_long (abfd, section->_raw_size);
 828       _bfd_vms_output_counted (abfd, sname);
 829       _bfd_vms_output_flush (abfd);
 830
 831       last_index = section->index;
 832       section = section->next;
 833     }
 834
 835   /* output symbols  */
 836
 837 #if VMS_DEBUG
 838   vms_debug (3, "%d symbols found\n", abfd->symcount);
 839 #endif
 840
 841   bfd_set_start_address (abfd, (bfd_vma)-1);
 842
 843   for (symnum = 0; symnum < abfd->symcount; symnum++)
 844     {
 845
 846       symbol = abfd->outsymbols[symnum];
 847       if (*(symbol->name) == '_')
 848         {
 849           if (strcmp (symbol->name, "__main") == 0)
 850             bfd_set_start_address (abfd, (bfd_vma)symbol->value);
 851         }
 852       old_flags = symbol->flags;
 853
 854       if (old_flags & BSF_FILE)
 855         continue;
 856
 857       if (((old_flags & (BSF_GLOBAL|BSF_WEAK)) == 0)    /* not xdef */
 858           && (!bfd_is_und_section (symbol->section)))   /* and not xref */
 859         continue;                                       /* dont output */
 860
 861       /* 13 bytes egsd, max 64 chars name -> should be 77 bytes  */
 862
 863       if (_bfd_vms_output_check (abfd, 80) < 0)
 864         {
 865           _bfd_vms_output_pop (abfd);
 866           _bfd_vms_output_end (abfd);
 867           _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
 868           _bfd_vms_output_long (abfd, 0);
 869           _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
 870         }
 871
 872       _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1);
 873
 874       _bfd_vms_output_short (abfd, 0);                  /* data type, alignment */
 875
 876       new_flags = 0;
 877
 878       if (old_flags & BSF_WEAK)
 879         new_flags |= EGSY_S_V_WEAK;
 880       if (bfd_is_com_section (symbol->section))         /* .comm  */
 881         new_flags |= (EGSY_S_V_WEAK|EGSY_S_V_COMM);
 882
 883       if (old_flags & BSF_FUNCTION)
 884         {
 885           new_flags |= EGSY_S_V_NORM;
 886           new_flags |= EGSY_S_V_REL;
 887         }
 888       if (old_flags & (BSF_GLOBAL|BSF_WEAK))
 889         {
 890           new_flags |= EGSY_S_V_DEF;
 891           if (!bfd_is_abs_section (symbol->section))
 892             new_flags |= EGSY_S_V_REL;
 893         }
 894       _bfd_vms_output_short (abfd, new_flags);
 895
 896       if (old_flags & (BSF_GLOBAL|BSF_WEAK))            /* symbol definition */
 897         {
 898           if (old_flags & BSF_FUNCTION)
 899             {
 900               _bfd_vms_output_quad (abfd, symbol->value);
 901               _bfd_vms_output_quad (abfd,
 902                                      ((asymbol *)(symbol->udata.p))->value);
 903               _bfd_vms_output_long (abfd,
 904                                      (((asymbol *)(symbol->udata.p))
 905                                       ->section->index));
 906               _bfd_vms_output_long (abfd, symbol->section->index);
 907             }
 908           else
 909             {
 910               _bfd_vms_output_quad (abfd, symbol->value);       /* L_VALUE */
 911               _bfd_vms_output_quad (abfd, 0);                   /* L_CODE_ADDRESS */
 912               _bfd_vms_output_long (abfd, 0);                   /* L_CA_PSINDX */
 913               _bfd_vms_output_long (abfd, symbol->section->index);/* L_PSINDX */
 914             }
 915         }
 916       _bfd_vms_output_counted (abfd, _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ));
 917
 918       _bfd_vms_output_flush (abfd);
 919
 920     }
 921
 922   _bfd_vms_output_alignment (abfd, 8);
 923   _bfd_vms_output_pop (abfd);
 924   _bfd_vms_output_end (abfd);
 925
 926   return 0;
 927 }