This commit was manufactured by cvs2svn to create branch
[external/binutils.git] / 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, 2002
4    Free Software Foundation, Inc.
5
6    go and read the openVMS linker manual (esp. appendix B)
7    if you don't know what's going on here :-)
8
9    Written by Klaus K"ampf (kkaempf@rmi.de)
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
24
25 #include "bfd.h"
26 #include "sysdep.h"
27 #include "bfdlink.h"
28 #include "libbfd.h"
29
30 #include "vms.h"
31
32 /*-----------------------------------------------------------------------------*/
33
34 /* typical sections for vax object files  */
35
36 #define VAX_CODE_NAME           "$CODE"
37 #define VAX_DATA_NAME           "$DATA"
38 #define VAX_ADDRESS_DATA_NAME   "$ADDRESS_DATA"
39
40 /* typical sections for evax object files  */
41
42 #define EVAX_ABS_NAME           "$ABS$"
43 #define EVAX_CODE_NAME          "$CODE$"
44 #define EVAX_LINK_NAME          "$LINK$"
45 #define EVAX_DATA_NAME          "$DATA$"
46 #define EVAX_BSS_NAME           "$BSS$"
47 #define EVAX_READONLYADDR_NAME  "$READONLY_ADDR$"
48 #define EVAX_READONLY_NAME      "$READONLY$"
49 #define EVAX_LITERAL_NAME       "$LITERAL$"
50 #define EVAX_COMMON_NAME        "$COMMON$"
51 #define EVAX_LOCAL_NAME         "$LOCAL$"
52
53 struct sec_flags_struct {
54   char *name;                   /* name of section */
55   int vflags_always;
56   flagword flags_always;        /* flags we set always */
57   int vflags_hassize;
58   flagword flags_hassize;       /* flags we set if the section has a size > 0 */
59 };
60
61 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible  */
62
63 static struct sec_flags_struct vax_section_flags[] = {
64   { VAX_CODE_NAME,
65         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
66         (SEC_CODE),
67         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
68         (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
69   { VAX_DATA_NAME,
70         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
71         (SEC_DATA),
72         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
73         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
74   { VAX_ADDRESS_DATA_NAME,
75         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
76         (SEC_DATA|SEC_READONLY),
77         (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
78         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
79   { NULL,
80         (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
81         (SEC_DATA),
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_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
84 };
85
86 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible  */
87
88 static struct sec_flags_struct evax_section_flags[] = {
89   { EVAX_ABS_NAME,
90         (EGPS_S_V_SHR),
91         (SEC_DATA),
92         (EGPS_S_V_SHR),
93         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
94   { EVAX_CODE_NAME,
95         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
96         (SEC_CODE),
97         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
98         (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
99   { EVAX_LITERAL_NAME,
100         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
101         (SEC_DATA|SEC_READONLY),
102         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
103         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
104   { EVAX_LINK_NAME,
105         (EGPS_S_V_REL|EGPS_S_V_RD),
106         (SEC_DATA|SEC_READONLY),
107         (EGPS_S_V_REL|EGPS_S_V_RD),
108         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
109   { EVAX_DATA_NAME,
110         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
111         (SEC_DATA),
112         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
113         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
114   { EVAX_BSS_NAME,
115         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
116         (SEC_NO_FLAGS),
117         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
118         (SEC_IN_MEMORY|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
119   { EVAX_READONLYADDR_NAME,
120         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
121         (SEC_DATA|SEC_READONLY),
122         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
123         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
124   { EVAX_READONLY_NAME,
125         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
126         (SEC_DATA|SEC_READONLY),
127         (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
128         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
129   { EVAX_LOCAL_NAME,
130         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
131         (SEC_DATA),
132         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
133         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
134   { NULL,
135         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
136         (SEC_DATA),
137         (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
138         (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
139 };
140
141 static flagword vms_secflag_by_name PARAMS ((bfd *, struct sec_flags_struct *, char *, int));
142 static flagword vms_esecflag_by_name PARAMS ((struct sec_flags_struct *, char *, int));
143
144 /* Retrieve bfd section flags by name and size  */
145
146 static flagword
147 vms_secflag_by_name (abfd, section_flags, name, hassize)
148      bfd *abfd;
149      struct sec_flags_struct *section_flags;
150      char *name;
151      int hassize;
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 (hassize)
162             return section_flags[i].flags_hassize;
163           else
164             return section_flags[i].flags_always;
165         }
166       i++;
167     }
168   if (hassize)
169     return section_flags[i].flags_hassize;
170   return section_flags[i].flags_always;
171 }
172
173 /* Retrieve vms section flags by name and size  */
174
175 static flagword
176 vms_esecflag_by_name (section_flags, name, hassize)
177      struct sec_flags_struct *section_flags;
178      char *name;
179      int hassize;
180 {
181   int i = 0;
182
183   while (section_flags[i].name != NULL)
184     {
185       if (strcmp (name, section_flags[i].name) == 0)
186         {
187           if (hassize)
188             return section_flags[i].vflags_hassize;
189           else
190             return section_flags[i].vflags_always;
191         }
192       i++;
193     }
194   if (hassize)
195     return section_flags[i].vflags_hassize;
196   return section_flags[i].vflags_always;
197 }
198
199 /*-----------------------------------------------------------------------------*/
200 #if VMS_DEBUG
201 /* debug */
202
203 struct flagdescstruct { char *name; flagword value; };
204
205 /* Convert flag to printable string  */
206
207 static char *
208 flag2str(flagdesc, flags)
209      struct flagdescstruct *flagdesc;
210      flagword flags;
211 {
212
213   static char res[64];
214   int next = 0;
215
216   res[0] = 0;
217   while (flagdesc->name != NULL)
218     {
219       if ((flags & flagdesc->value) != 0)
220         {
221           if (next)
222             strcat(res, ",");
223           else
224             next = 1;
225           strcat (res, flagdesc->name);
226         }
227       flagdesc++;
228     }
229   return res;
230 }
231 #endif
232
233 /*-----------------------------------------------------------------------------*/
234 /* input routines */
235
236 /* Process GSD/EGSD record
237    return 0 on success, -1 on error  */
238
239 int
240 _bfd_vms_slurp_gsd (abfd, objtype)
241      bfd *abfd;
242      int objtype;
243 {
244 #if VMS_DEBUG
245   static struct flagdescstruct gpsflagdesc[] =
246   {
247     { "PIC", 0x0001 },
248     { "LIB", 0x0002 },
249     { "OVR", 0x0004 },
250     { "REL", 0x0008 },
251     { "GBL", 0x0010 },
252     { "SHR", 0x0020 },
253     { "EXE", 0x0040 },
254     { "RD",  0x0080 },
255     { "WRT", 0x0100 },
256     { "VEC", 0x0200 },
257     { "NOMOD", 0x0400 },
258     { "COM", 0x0800 },
259     { NULL, 0 }
260   };
261
262   static struct flagdescstruct gsyflagdesc[] =
263   {
264     { "WEAK", 0x0001 },
265     { "DEF",  0x0002 },
266     { "UNI",  0x0004 },
267     { "REL",  0x0008 },
268     { "COMM", 0x0010 },
269     { "VECEP", 0x0020 },
270     { "NORM", 0x0040 },
271     { NULL, 0 }
272   };
273 #endif
274
275   int gsd_type, gsd_size;
276   asection *section;
277   unsigned char *vms_rec;
278   flagword new_flags, old_flags;
279   char *name;
280   asymbol *symbol;
281   vms_symbol_entry *entry;
282   unsigned long base_addr;
283   unsigned long align_addr;
284   static unsigned int psect_idx = 0;
285
286 #if VMS_DEBUG
287   vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype);
288 #endif
289
290   switch (objtype)
291     {
292     case EOBJ_S_C_EGSD:
293       PRIV(vms_rec) += 8;       /* skip type, size, l_temp */
294       PRIV(rec_size) -= 8;
295       break;
296     case OBJ_S_C_GSD:
297       PRIV(vms_rec) += 1;
298       PRIV(rec_size) -= 1;
299       break;
300     default:
301       return -1;
302     }
303
304   /* calculate base address for each section  */
305   base_addr = 0L;
306
307   abfd->symcount = 0;
308
309   while (PRIV(rec_size) > 0)
310     {
311       vms_rec = PRIV(vms_rec);
312
313       if (objtype == OBJ_S_C_GSD)
314         {
315           gsd_type = *vms_rec;
316         }
317       else
318         {
319           _bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size);
320           gsd_type += EVAX_OFFSET;
321         }
322
323 #if VMS_DEBUG
324   vms_debug (3, "gsd_type %d\n", gsd_type);
325 #endif
326
327       switch (gsd_type)
328         {
329           case GSD_S_C_PSC:
330             {
331               /*
332                * program section definition
333                */
334
335               asection *old_section = 0;
336
337 #if VMS_DEBUG
338   vms_debug (4, "GSD_S_C_PSC\n");
339 #endif
340               /* If this section isn't a bfd section.  */
341
342               if (PRIV(is_vax) && (psect_idx < (abfd->section_count-1)))
343                 {
344                   /* check for temporary section from TIR record.  */
345
346                   if (psect_idx < PRIV(section_count))
347                     old_section = PRIV(sections)[psect_idx];
348                   else
349                     old_section = 0;
350                 }
351
352               name = _bfd_vms_save_counted_string (vms_rec + 8);
353               section = bfd_make_section (abfd, name);
354               if (!section)
355                 {
356                   (*_bfd_error_handler) (_("bfd_make_section (%s) failed"),
357                                          name);
358                   return -1;
359                 }
360               old_flags = bfd_getl16 (vms_rec + 2);
361               section->_raw_size = bfd_getl32 (vms_rec + 4);  /* allocation */
362               new_flags = vms_secflag_by_name (abfd, vax_section_flags, name,
363                                                section->_raw_size > 0);
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,
418                                                         section->_raw_size));
419                       if (section->contents == NULL)
420                         {
421                           bfd_set_error (bfd_error_no_memory);
422                           return -1;
423                         }
424                     }
425                 }
426               else
427                 {
428                   section->contents = ((unsigned char *)
429                                        bfd_zmalloc (section->_raw_size));
430                   if (section->contents == NULL)
431                     {
432                       bfd_set_error (bfd_error_no_memory);
433                       return -1;
434                     }
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_zmalloc (section->_raw_size));
621             if (section->contents == NULL)
622               return -1;
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_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),
678                                                           symbol->name,
679                                                           TRUE, FALSE);
680             if (entry == (vms_symbol_entry *)NULL)
681               {
682                 bfd_set_error (bfd_error_no_memory);
683                 return -1;
684               }
685             if (entry->symbol != (asymbol *)NULL)
686               {                                 /* FIXME ?, DEC C generates this */
687 #if VMS_DEBUG
688                 vms_debug(4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name);
689 #endif
690               }
691             else
692               {
693                 entry->symbol = symbol;
694                 PRIV(gsd_sym_count)++;
695                 abfd->symcount++;
696               }
697           }
698           break;
699
700         case EGSD_S_C_IDC + EVAX_OFFSET:
701           break;
702
703         default:
704           (*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type);
705           bfd_set_error (bfd_error_bad_value);
706           return -1;
707
708         } /* switch */
709
710       PRIV(rec_size) -= gsd_size;
711       PRIV(vms_rec) += gsd_size;
712
713     } /* while (recsize > 0) */
714
715   if (abfd->symcount > 0)
716     abfd->flags |= HAS_SYMS;
717
718   return 0;
719 }
720
721 /*-----------------------------------------------------------------------------*/
722 /* output routines */
723
724 /* Write section and symbol directory of bfd abfd  */
725
726 int
727 _bfd_vms_write_gsd (abfd, objtype)
728      bfd *abfd;
729      int objtype ATTRIBUTE_UNUSED;
730 {
731   asection *section;
732   asymbol *symbol;
733   unsigned int symnum;
734   int last_index = -1;
735   char dummy_name[10];
736   char *sname;
737   flagword new_flags, old_flags;
738
739 #if VMS_DEBUG
740   vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype);
741 #endif
742
743   /* output sections  */
744
745   section = abfd->sections;
746 #if VMS_DEBUG
747   vms_debug (3, "%d sections found\n", abfd->section_count);
748 #endif
749
750   /* egsd is quadword aligned  */
751
752   _bfd_vms_output_alignment (abfd, 8);
753
754   _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
755   _bfd_vms_output_long (abfd, 0);
756   _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
757
758   while (section != 0)
759     {
760 #if VMS_DEBUG
761   vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->_raw_size);
762 #endif
763
764         /* 13 bytes egsd, max 31 chars name -> should be 44 bytes */
765       if (_bfd_vms_output_check (abfd, 64) < 0)
766         {
767           _bfd_vms_output_pop (abfd);
768           _bfd_vms_output_end (abfd);
769           _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
770           _bfd_vms_output_long (abfd, 0);
771           _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
772         }
773
774         /* Create dummy sections to keep consecutive indices */
775
776       while (section->index - last_index > 1)
777         {
778 #if VMS_DEBUG
779           vms_debug (3, "index %d, last %d\n", section->index, last_index);
780 #endif
781           _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
782           _bfd_vms_output_short (abfd, 0);
783           _bfd_vms_output_short (abfd, 0);
784           _bfd_vms_output_long (abfd, 0);
785           sprintf (dummy_name, ".DUMMY%02d", last_index);
786           _bfd_vms_output_counted (abfd, dummy_name);
787           _bfd_vms_output_flush (abfd);
788           last_index++;
789         }
790
791       /* Don't know if this is neccesary for the linker but for now it keeps
792          vms_slurp_gsd happy  */
793
794       sname = (char *)section->name;
795       if (*sname == '.')
796         {
797           sname++;
798           if ((*sname == 't') && (strcmp (sname, "text") == 0))
799             sname = PRIV(is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME;
800           else if ((*sname == 'd') && (strcmp (sname, "data") == 0))
801             sname = PRIV(is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME;
802           else if ((*sname == 'b') && (strcmp (sname, "bss") == 0))
803             sname = EVAX_BSS_NAME;
804           else if ((*sname == 'l') && (strcmp (sname, "link") == 0))
805             sname = EVAX_LINK_NAME;
806           else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0))
807             sname = EVAX_READONLY_NAME;
808           else if ((*sname == 'l') && (strcmp (sname, "literal") == 0))
809             sname = EVAX_LITERAL_NAME;
810           else if ((*sname == 'c') && (strcmp (sname, "comm") == 0))
811             sname = EVAX_COMMON_NAME;
812           else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0))
813             sname = EVAX_LOCAL_NAME;
814         }
815       else
816         sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ);
817
818       _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
819       _bfd_vms_output_short (abfd, section->alignment_power & 0xff);
820       if (bfd_is_com_section (section))
821         {
822           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);
823         }
824       else
825         {
826           new_flags = vms_esecflag_by_name (evax_section_flags, sname,
827                                             section->_raw_size > 0);
828         }
829       _bfd_vms_output_short (abfd, new_flags);
830       _bfd_vms_output_long (abfd, (unsigned long) section->_raw_size);
831       _bfd_vms_output_counted (abfd, sname);
832       _bfd_vms_output_flush (abfd);
833
834       last_index = section->index;
835       section = section->next;
836     }
837
838   /* output symbols  */
839
840 #if VMS_DEBUG
841   vms_debug (3, "%d symbols found\n", abfd->symcount);
842 #endif
843
844   bfd_set_start_address (abfd, (bfd_vma)-1);
845
846   for (symnum = 0; symnum < abfd->symcount; symnum++)
847     {
848       char *hash;
849
850       symbol = abfd->outsymbols[symnum];
851       if (*(symbol->name) == '_')
852         {
853           if (strcmp (symbol->name, "__main") == 0)
854             bfd_set_start_address (abfd, (bfd_vma)symbol->value);
855         }
856       old_flags = symbol->flags;
857
858       if (old_flags & BSF_FILE)
859         continue;
860
861       if (((old_flags & (BSF_GLOBAL|BSF_WEAK)) == 0)    /* not xdef */
862           && (!bfd_is_und_section (symbol->section)))   /* and not xref */
863         continue;                                       /* dont output */
864
865       /* 13 bytes egsd, max 64 chars name -> should be 77 bytes  */
866
867       if (_bfd_vms_output_check (abfd, 80) < 0)
868         {
869           _bfd_vms_output_pop (abfd);
870           _bfd_vms_output_end (abfd);
871           _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
872           _bfd_vms_output_long (abfd, 0);
873           _bfd_vms_output_push (abfd);          /* prepare output for subrecords */
874         }
875
876       _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1);
877
878       _bfd_vms_output_short (abfd, 0);                  /* data type, alignment */
879
880       new_flags = 0;
881
882       if (old_flags & BSF_WEAK)
883         new_flags |= EGSY_S_V_WEAK;
884       if (bfd_is_com_section (symbol->section))         /* .comm  */
885         new_flags |= (EGSY_S_V_WEAK|EGSY_S_V_COMM);
886
887       if (old_flags & BSF_FUNCTION)
888         {
889           new_flags |= EGSY_S_V_NORM;
890           new_flags |= EGSY_S_V_REL;
891         }
892       if (old_flags & (BSF_GLOBAL|BSF_WEAK))
893         {
894           new_flags |= EGSY_S_V_DEF;
895           if (!bfd_is_abs_section (symbol->section))
896             new_flags |= EGSY_S_V_REL;
897         }
898       _bfd_vms_output_short (abfd, new_flags);
899
900       if (old_flags & (BSF_GLOBAL | BSF_WEAK))          /* symbol definition */
901         {
902           uquad code_address = 0;
903           unsigned long ca_psindx = 0;
904           unsigned long psindx;
905
906           if ((old_flags & BSF_FUNCTION) && symbol->udata.p != NULL)
907             {
908               code_address = ((asymbol *) (symbol->udata.p))->value;
909               ca_psindx = ((asymbol *) (symbol->udata.p))->section->index;
910             }
911           psindx = symbol->section->index;
912
913           _bfd_vms_output_quad (abfd, symbol->value);
914           _bfd_vms_output_quad (abfd, code_address);
915           _bfd_vms_output_long (abfd, ca_psindx);
916           _bfd_vms_output_long (abfd, psindx);
917         }
918       hash = _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ);
919       _bfd_vms_output_counted (abfd, hash);
920
921       _bfd_vms_output_flush (abfd);
922
923     }
924
925   _bfd_vms_output_alignment (abfd, 8);
926   _bfd_vms_output_pop (abfd);
927   _bfd_vms_output_end (abfd);
928
929   return 0;
930 }