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[binutils.git] / bfd / vms-gsd.c
blob538c148cb2030eaa5bd105c7050bca601dc57746
1 /* vms-gsd.c -- BFD back-end for VAX (openVMS/VAX) and
2 EVAX (openVMS/Alpha) files.
3 Copyright 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
4
5 go and read the openVMS linker manual (esp. appendix B)
6 if you don't know what's going on here :-)
7
8 Written by Klaus K"ampf (kkaempf@rmi.de)
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23
24 #include "bfd.h"
25 #include "sysdep.h"
26 #include "bfdlink.h"
27 #include "libbfd.h"
28
29 #include "vms.h"
30
31 /*-----------------------------------------------------------------------------*/
32
33 /* typical sections for vax object files */
34
35 #define VAX_CODE_NAME "$CODE"
36 #define VAX_DATA_NAME "$DATA"
37 #define VAX_ADDRESS_DATA_NAME "$ADDRESS_DATA"
38
39 /* typical sections for evax object files */
40
41 #define EVAX_ABS_NAME "$ABS$"
42 #define EVAX_CODE_NAME "$CODE$"
43 #define EVAX_LINK_NAME "$LINK$"
44 #define EVAX_DATA_NAME "$DATA$"
45 #define EVAX_BSS_NAME "$BSS$"
46 #define EVAX_READONLYADDR_NAME "$READONLY_ADDR$"
47 #define EVAX_READONLY_NAME "$READONLY$"
48 #define EVAX_LITERAL_NAME "$LITERAL$"
49 #define EVAX_COMMON_NAME "$COMMON$"
50 #define EVAX_LOCAL_NAME "$LOCAL$"
51
52 struct sec_flags_struct {
53 char *name; /* name of section */
54 int vflags_always;
55 flagword flags_always; /* flags we set always */
56 int vflags_hassize;
57 flagword flags_hassize; /* flags we set if the section has a size > 0 */
58 };
59
60 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible */
61
62 static struct sec_flags_struct vax_section_flags[] = {
63 { VAX_CODE_NAME,
64 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
65 (SEC_CODE),
66 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
67 (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
68 { VAX_DATA_NAME,
69 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
70 (SEC_DATA),
71 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
72 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
73 { VAX_ADDRESS_DATA_NAME,
74 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
75 (SEC_DATA|SEC_READONLY),
76 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
77 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
78 { NULL,
79 (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
80 (SEC_DATA),
81 (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
82 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
83 };
84
85 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible */
86
87 static struct sec_flags_struct evax_section_flags[] = {
88 { EVAX_ABS_NAME,
89 (EGPS_S_V_SHR),
90 (SEC_DATA),
91 (EGPS_S_V_SHR),
92 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
93 { EVAX_CODE_NAME,
94 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
95 (SEC_CODE),
96 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
97 (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
98 { EVAX_LITERAL_NAME,
99 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
100 (SEC_DATA|SEC_READONLY),
101 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
102 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
103 { EVAX_LINK_NAME,
104 (EGPS_S_V_REL|EGPS_S_V_RD),
105 (SEC_DATA|SEC_READONLY),
106 (EGPS_S_V_REL|EGPS_S_V_RD),
107 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
108 { EVAX_DATA_NAME,
109 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
110 (SEC_DATA),
111 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
112 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
113 { EVAX_BSS_NAME,
114 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
115 (SEC_NO_FLAGS),
116 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
117 (SEC_IN_MEMORY|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
118 { EVAX_READONLYADDR_NAME,
119 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
120 (SEC_DATA|SEC_READONLY),
121 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
122 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
123 { EVAX_READONLY_NAME,
124 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
125 (SEC_DATA|SEC_READONLY),
126 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
127 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
128 { EVAX_LOCAL_NAME,
129 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
130 (SEC_DATA),
131 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
132 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
133 { NULL,
134 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
135 (SEC_DATA),
136 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
137 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
138 };
139
140 static flagword vms_secflag_by_name PARAMS ((bfd *, struct sec_flags_struct *, char *, int));
141 static flagword vms_esecflag_by_name PARAMS ((struct sec_flags_struct *, char *, int));
142
143 /* Retrieve bfd section flags by name and size */
144
145 static flagword
146 vms_secflag_by_name (abfd, section_flags, name, hassize)
147 bfd *abfd;
148 struct sec_flags_struct *section_flags;
149 char *name;
150 int hassize;
151 {
152 int i = 0;
153
154 while (section_flags[i].name != NULL)
155 {
156 if ((PRIV(is_vax)?
157 strcasecmp (name, section_flags[i].name):
158 strcmp (name, section_flags[i].name)) == 0)
159 {
160 if (hassize)
161 return section_flags[i].flags_hassize;
162 else
163 return section_flags[i].flags_always;
164 }
165 i++;
166 }
167 if (hassize)
168 return section_flags[i].flags_hassize;
169 return section_flags[i].flags_always;
170 }
171
172 /* Retrieve vms section flags by name and size */
173
174 static flagword
175 vms_esecflag_by_name (section_flags, name, hassize)
176 struct sec_flags_struct *section_flags;
177 char *name;
178 int hassize;
179 {
180 int i = 0;
181
182 while (section_flags[i].name != NULL)
183 {
184 if (strcmp (name, section_flags[i].name) == 0)
185 {
186 if (hassize)
187 return section_flags[i].vflags_hassize;
188 else
189 return section_flags[i].vflags_always;
190 }
191 i++;
192 }
193 if (hassize)
194 return section_flags[i].vflags_hassize;
195 return section_flags[i].vflags_always;
196 }
197
198 /*-----------------------------------------------------------------------------*/
199 #if VMS_DEBUG
200 /* debug */
201
202 struct flagdescstruct { char *name; flagword value; };
203
204 /* Convert flag to printable string */
205
206 static char *
207 flag2str(flagdesc, flags)
208 struct flagdescstruct *flagdesc;
209 flagword flags;
210 {
211
212 static char res[64];
213 int next = 0;
214
215 res[0] = 0;
216 while (flagdesc->name != NULL)
217 {
218 if ((flags & flagdesc->value) != 0)
219 {
220 if (next)
221 strcat(res, ",");
222 else
223 next = 1;
224 strcat (res, flagdesc->name);
225 }
226 flagdesc++;
227 }
228 return res;
229 }
230 #endif
231
232 /*-----------------------------------------------------------------------------*/
233 /* input routines */
234
235 /* Process GSD/EGSD record
236 return 0 on success, -1 on error */
237
238 int
239 _bfd_vms_slurp_gsd (abfd, objtype)
240 bfd *abfd;
241 int objtype;
242 {
243 #if VMS_DEBUG
244 static struct flagdescstruct gpsflagdesc[] =
245 {
246 { "PIC", 0x0001 },
247 { "LIB", 0x0002 },
248 { "OVR", 0x0004 },
249 { "REL", 0x0008 },
250 { "GBL", 0x0010 },
251 { "SHR", 0x0020 },
252 { "EXE", 0x0040 },
253 { "RD", 0x0080 },
254 { "WRT", 0x0100 },
255 { "VEC", 0x0200 },
256 { "NOMOD", 0x0400 },
257 { "COM", 0x0800 },
258 { NULL, 0 }
259 };
260
261 static struct flagdescstruct gsyflagdesc[] =
262 {
263 { "WEAK", 0x0001 },
264 { "DEF", 0x0002 },
265 { "UNI", 0x0004 },
266 { "REL", 0x0008 },
267 { "COMM", 0x0010 },
268 { "VECEP", 0x0020 },
269 { "NORM", 0x0040 },
270 { NULL, 0 }
271 };
272 #endif
273
274 int gsd_type, gsd_size;
275 asection *section;
276 unsigned char *vms_rec;
277 flagword new_flags, old_flags;
278 char *name;
279 asymbol *symbol;
280 vms_symbol_entry *entry;
281 unsigned long base_addr;
282 unsigned long align_addr;
283 static unsigned int psect_idx = 0;
284
285 #if VMS_DEBUG
286 vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype);
287 #endif
288
289 switch (objtype)
290 {
291 case EOBJ_S_C_EGSD:
292 PRIV(vms_rec) += 8; /* skip type, size, l_temp */
293 PRIV(rec_size) -= 8;
294 break;
295 case OBJ_S_C_GSD:
296 PRIV(vms_rec) += 1;
297 PRIV(rec_size) -= 1;
298 break;
299 default:
300 return -1;
301 }
302
303 /* calculate base address for each section */
304 base_addr = 0L;
305
306 abfd->symcount = 0;
307
308 while (PRIV(rec_size) > 0)
309 {
310 vms_rec = PRIV(vms_rec);
311
312 if (objtype == OBJ_S_C_GSD)
313 {
314 gsd_type = *vms_rec;
315 }
316 else
317 {
318 _bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size);
319 gsd_type += EVAX_OFFSET;
320 }
321
322 #if VMS_DEBUG
323 vms_debug (3, "gsd_type %d\n", gsd_type);
324 #endif
325
326 switch (gsd_type)
327 {
328 case GSD_S_C_PSC:
329 {
330 /*
331 * program section definition
332 */
333
334 asection *old_section = 0;
335
336 #if VMS_DEBUG
337 vms_debug (4, "GSD_S_C_PSC\n");
338 #endif
339 /* If this section isn't a bfd section. */
340
341 if (PRIV(is_vax) && (psect_idx < (abfd->section_count-1)))
342 {
343 /* check for temporary section from TIR record. */
344
345 if (psect_idx < PRIV(section_count))
346 old_section = PRIV(sections)[psect_idx];
347 else
348 old_section = 0;
349 }
350
351 name = _bfd_vms_save_counted_string (vms_rec + 8);
352 section = bfd_make_section (abfd, name);
353 if (!section)
354 {
355 (*_bfd_error_handler) (_("bfd_make_section (%s) failed"),
356 name);
357 return -1;
358 }
359 old_flags = bfd_getl16 (vms_rec + 2);
360 section->_raw_size = bfd_getl32 (vms_rec + 4); /* allocation */
361 new_flags = vms_secflag_by_name (abfd, vax_section_flags, name,
362 section->_raw_size > 0);
363 if (old_flags & EGPS_S_V_REL)
364 new_flags |= SEC_RELOC;
365 if (old_flags & GPS_S_M_OVR)
366 new_flags |= SEC_IS_COMMON;
367 if (!bfd_set_section_flags (abfd, section, new_flags))
368 {
369 (*_bfd_error_handler)
370 (_("bfd_set_section_flags (%s, %x) failed"),
371 name, new_flags);
372 return -1;
373 }
374 section->alignment_power = vms_rec[1];
375 align_addr = (1 << section->alignment_power);
376 if ((base_addr % align_addr) != 0)
377 base_addr += (align_addr - (base_addr % align_addr));
378 section->vma = (bfd_vma)base_addr;
379 base_addr += section->_raw_size;
380
381 /* global section is common symbol */
382
383 if (old_flags & GPS_S_M_GBL)
384 {
385 entry = _bfd_vms_enter_symbol (abfd, name);
386 if (entry == (vms_symbol_entry *)NULL)
387 {
388 bfd_set_error (bfd_error_no_memory);
389 return -1;
390 }
391 symbol = entry->symbol;
392
393 symbol->value = 0;
394 symbol->section = section;
395 symbol->flags = (BSF_GLOBAL|BSF_SECTION_SYM|BSF_OLD_COMMON);
396 }
397
398 /* copy saved contents if old_section set */
399
400 if (old_section != 0)
401 {
402 section->contents = old_section->contents;
403 if (section->_raw_size < old_section->_raw_size)
404 {
405 (*_bfd_error_handler)
406 (_("Size mismatch section %s=%lx, %s=%lx"),
407 old_section->name,
408 (unsigned long) old_section->_raw_size,
409 section->name,
410 (unsigned long) section->_raw_size);
411 return -1;
412 }
413 else if (section->_raw_size > old_section->_raw_size)
414 {
415 section->contents = ((unsigned char *)
416 bfd_realloc (old_section->contents,
417 section->_raw_size));
418 if (section->contents == NULL)
419 {
420 bfd_set_error (bfd_error_no_memory);
421 return -1;
422 }
423 }
424 }
425 else
426 {
427 section->contents = ((unsigned char *)
428 bfd_malloc (section->_raw_size));
429 if (section->contents == NULL)
430 {
431 bfd_set_error (bfd_error_no_memory);
432 return -1;
433 }
434 memset (section->contents, 0, (size_t) section->_raw_size);
435 }
436 section->_cooked_size = section->_raw_size;
437 #if VMS_DEBUG
438 vms_debug (4, "gsd psc %d (%s, flags %04x=%s) ",
439 section->index, name, old_flags, flag2str (gpsflagdesc, old_flags));
440 vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n",
441 section->_raw_size, section->vma, section->contents);
442 #endif
443
444 gsd_size = vms_rec[8] + 9;
445
446 psect_idx++;
447 }
448 break;
449
450 case GSD_S_C_EPM:
451 case GSD_S_C_EPMW:
452 #if VMS_DEBUG
453 vms_debug(4, "gsd epm\n");
454 #endif
455 /*FALLTHRU*/
456 case GSD_S_C_SYM:
457 case GSD_S_C_SYMW:
458 {
459 int name_offset = 0, value_offset = 0;
460
461 /*
462 * symbol specification (definition or reference)
463 */
464
465 #if VMS_DEBUG
466 vms_debug (4, "GSD_S_C_SYM(W)\n");
467 #endif
468 old_flags = bfd_getl16 (vms_rec + 2);
469 new_flags = BSF_NO_FLAGS;
470
471 if (old_flags & GSY_S_M_WEAK)
472 new_flags |= BSF_WEAK;
473
474 switch (gsd_type)
475 {
476 case GSD_S_C_EPM:
477 name_offset = 11;
478 value_offset = 5;
479 new_flags |= BSF_FUNCTION;
480 break;
481 case GSD_S_C_EPMW:
482 name_offset = 12;
483 value_offset = 6;
484 new_flags |= BSF_FUNCTION;
485 break;
486 case GSD_S_C_SYM:
487 if (old_flags & GSY_S_M_DEF) /* symbol definition */
488 name_offset = 9;
489 else
490 name_offset = 4;
491 value_offset = 5;
492 break;
493 case GSD_S_C_SYMW:
494 if (old_flags & GSY_S_M_DEF) /* symbol definition */
495 name_offset = 10;
496 else
497 name_offset = 5;
498 value_offset = 6;
499 break;
500 }
501
502 /* save symbol in vms_symbol_table */
503
504 entry = _bfd_vms_enter_symbol (abfd,
505 _bfd_vms_save_counted_string (vms_rec + name_offset));
506 if (entry == (vms_symbol_entry *)NULL)
507 {
508 bfd_set_error (bfd_error_no_memory);
509 return -1;
510 }
511 symbol = entry->symbol;
512
513 if (old_flags & GSY_S_M_DEF) /* symbol definition */
514 {
515 int psect;
516
517 symbol->value = bfd_getl32 (vms_rec+value_offset);
518 if ((gsd_type == GSD_S_C_SYMW)
519 || (gsd_type == GSD_S_C_EPMW))
520 psect = bfd_getl16 (vms_rec + value_offset - 2);
521 else
522 psect = vms_rec[value_offset-1];
523
524 symbol->section = (asection *)psect;
525 #if VMS_DEBUG
526 vms_debug(4, "gsd sym def #%d (%s, %d [%p], %04x=%s)\n", abfd->symcount,
527 symbol->name, (int)symbol->section, symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
528 #endif
529 }
530 else /* symbol reference */
531 {
532 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
533 #if VMS_DEBUG
534 vms_debug (4, "gsd sym ref #%d (%s, %s [%p], %04x=%s)\n", abfd->symcount,
535 symbol->name, symbol->section->name, symbol->section, old_flags, flag2str (gsyflagdesc, old_flags));
536 #endif
537 }
538
539 gsd_size = vms_rec[name_offset] + name_offset + 1;
540 symbol->flags = new_flags;
541 }
542
543 break;
544
545 case GSD_S_C_PRO:
546 case GSD_S_C_PROW:
547 #if VMS_DEBUG
548 vms_debug(4, "gsd pro\n");
549 #endif
550 break;
551 case GSD_S_C_IDC:
552 #if VMS_DEBUG
553 vms_debug(4, "gsd idc\n");
554 #endif
555 break;
556 case GSD_S_C_ENV:
557 #if VMS_DEBUG
558 vms_debug(4, "gsd env\n");
559 #endif
560 break;
561 case GSD_S_C_LSY:
562 #if VMS_DEBUG
563 vms_debug(4, "gsd lsy\n");
564 #endif
565 break;
566 case GSD_S_C_LEPM:
567 #if VMS_DEBUG
568 vms_debug(4, "gsd lepm\n");
569 #endif
570 break;
571 case GSD_S_C_LPRO:
572 #if VMS_DEBUG
573 vms_debug(4, "gsd lpro\n");
574 #endif
575 break;
576 case GSD_S_C_SPSC:
577 #if VMS_DEBUG
578 vms_debug(4, "gsd spsc\n");
579 #endif
580 break;
581 case GSD_S_C_SYMV:
582 #if VMS_DEBUG
583 vms_debug(4, "gsd symv\n");
584 #endif
585 break;
586 case GSD_S_C_EPMV:
587 #if VMS_DEBUG
588 vms_debug(4, "gsd epmv\n");
589 #endif
590 break;
591 case GSD_S_C_PROV:
592 #if VMS_DEBUG
593 vms_debug(4, "gsd prov\n");
594 #endif
595 break;
596
597 case EGSD_S_C_PSC + EVAX_OFFSET:
598 {
599 /* program section definition */
600
601 name = _bfd_vms_save_counted_string (vms_rec+12);
602 section = bfd_make_section (abfd, name);
603 if (!section)
604 return -1;
605 old_flags = bfd_getl16 (vms_rec + 6);
606 section->_raw_size = bfd_getl32 (vms_rec + 8); /* allocation */
607 new_flags = vms_secflag_by_name (abfd, evax_section_flags, name,
608 section->_raw_size > 0);
609 if (old_flags & EGPS_S_V_REL)
610 new_flags |= SEC_RELOC;
611 if (!bfd_set_section_flags (abfd, section, new_flags))
612 return -1;
613 section->alignment_power = vms_rec[4];
614 align_addr = (1 << section->alignment_power);
615 if ((base_addr % align_addr) != 0)
616 base_addr += (align_addr - (base_addr % align_addr));
617 section->vma = (bfd_vma)base_addr;
618 base_addr += section->_raw_size;
619 section->contents = ((unsigned char *)
620 bfd_malloc (section->_raw_size));
621 if (section->contents == NULL)
622 return -1;
623 memset (section->contents, 0, (size_t) section->_raw_size);
624 section->_cooked_size = section->_raw_size;
625 #if VMS_DEBUG
626 vms_debug(4, "egsd psc %d (%s, flags %04x=%s) ",
627 section->index, name, old_flags, flag2str(gpsflagdesc, old_flags));
628 vms_debug(4, "%d bytes at 0x%08lx (mem %p)\n",
629 section->_raw_size, section->vma, section->contents);
630 #endif
631 }
632 break;
633
634 case EGSD_S_C_SYM + EVAX_OFFSET:
635 {
636 /* symbol specification (definition or reference) */
637
638 symbol = _bfd_vms_make_empty_symbol (abfd);
639 if (symbol == 0)
640 return -1;
641
642 old_flags = bfd_getl16 (vms_rec + 6);
643 new_flags = BSF_NO_FLAGS;
644
645 if (old_flags & EGSY_S_V_WEAK)
646 new_flags |= BSF_WEAK;
647
648 if (vms_rec[6] & EGSY_S_V_DEF) /* symbol definition */
649 {
650 symbol->name =
651 _bfd_vms_save_counted_string (vms_rec+32);
652 if (old_flags & EGSY_S_V_NORM)
653 { /* proc def */
654 new_flags |= BSF_FUNCTION;
655 }
656 symbol->value = bfd_getl64 (vms_rec+8);
657 symbol->section = (asection *) ((unsigned long) bfd_getl32 (vms_rec+28));
658 #if VMS_DEBUG
659 vms_debug(4, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount,
660 symbol->name, (int)symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
661 #endif
662 }
663 else /* symbol reference */
664 {
665 symbol->name =
666 _bfd_vms_save_counted_string (vms_rec+8);
667 #if VMS_DEBUG
668 vms_debug(4, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount,
669 symbol->name, old_flags, flag2str(gsyflagdesc, old_flags));
670 #endif
671 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
672 }
673
674 symbol->flags = new_flags;
675
676 /* save symbol in vms_symbol_table */
677
678 entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV(vms_symbol_table), symbol->name, true, false);
679 if (entry == (vms_symbol_entry *)NULL)
680 {
681 bfd_set_error (bfd_error_no_memory);
682 return -1;
683 }
684 if (entry->symbol != (asymbol *)NULL)
685 { /* FIXME ?, DEC C generates this */
686 #if VMS_DEBUG
687 vms_debug(4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name);
688 #endif
689 }
690 else
691 {
692 entry->symbol = symbol;
693 PRIV(gsd_sym_count)++;
694 abfd->symcount++;
695 }
696 }
697 break;
698
699 case EGSD_S_C_IDC + EVAX_OFFSET:
700 break;
701
702 default:
703 (*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type);
704 bfd_set_error (bfd_error_bad_value);
705 return -1;
706
707 } /* switch */
708
709 PRIV(rec_size) -= gsd_size;
710 PRIV(vms_rec) += gsd_size;
711
712 } /* while (recsize > 0) */
713
714 if (abfd->symcount > 0)
715 abfd->flags |= HAS_SYMS;
716
717 return 0;
718 }
719
720 /*-----------------------------------------------------------------------------*/
721 /* output routines */
722
723 /* Write section and symbol directory of bfd abfd */
724
725 int
726 _bfd_vms_write_gsd (abfd, objtype)
727 bfd *abfd;
728 int objtype ATTRIBUTE_UNUSED;
729 {
730 asection *section;
731 asymbol *symbol;
732 unsigned int symnum;
733 int last_index = -1;
734 char dummy_name[10];
735 char *sname;
736 flagword new_flags, old_flags;
737
738 #if VMS_DEBUG
739 vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype);
740 #endif
741
742 /* output sections */
743
744 section = abfd->sections;
745 #if VMS_DEBUG
746 vms_debug (3, "%d sections found\n", abfd->section_count);
747 #endif
748
749 /* egsd is quadword aligned */
750
751 _bfd_vms_output_alignment (abfd, 8);
752
753 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
754 _bfd_vms_output_long (abfd, 0);
755 _bfd_vms_output_push (abfd); /* prepare output for subrecords */
756
757 while (section != 0)
758 {
759 #if VMS_DEBUG
760 vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->_raw_size);
761 #endif
762
763 /* 13 bytes egsd, max 31 chars name -> should be 44 bytes */
764 if (_bfd_vms_output_check (abfd, 64) < 0)
765 {
766 _bfd_vms_output_pop (abfd);
767 _bfd_vms_output_end (abfd);
768 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
769 _bfd_vms_output_long (abfd, 0);
770 _bfd_vms_output_push (abfd); /* prepare output for subrecords */
771 }
772
773 /* Create dummy sections to keep consecutive indices */
774
775 while (section->index - last_index > 1)
776 {
777 #if VMS_DEBUG
778 vms_debug (3, "index %d, last %d\n", section->index, last_index);
779 #endif
780 _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
781 _bfd_vms_output_short (abfd, 0);
782 _bfd_vms_output_short (abfd, 0);
783 _bfd_vms_output_long (abfd, 0);
784 sprintf (dummy_name, ".DUMMY%02d", last_index);
785 _bfd_vms_output_counted (abfd, dummy_name);
786 _bfd_vms_output_flush (abfd);
787 last_index++;
788 }
789
790 /* Don't know if this is neccesary for the linker but for now it keeps
791 vms_slurp_gsd happy */
792
793 sname = (char *)section->name;
794 if (*sname == '.')
795 {
796 sname++;
797 if ((*sname == 't') && (strcmp (sname, "text") == 0))
798 sname = PRIV(is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME;
799 else if ((*sname == 'd') && (strcmp (sname, "data") == 0))
800 sname = PRIV(is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME;
801 else if ((*sname == 'b') && (strcmp (sname, "bss") == 0))
802 sname = EVAX_BSS_NAME;
803 else if ((*sname == 'l') && (strcmp (sname, "link") == 0))
804 sname = EVAX_LINK_NAME;
805 else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0))
806 sname = EVAX_READONLY_NAME;
807 else if ((*sname == 'l') && (strcmp (sname, "literal") == 0))
808 sname = EVAX_LITERAL_NAME;
809 else if ((*sname == 'c') && (strcmp (sname, "comm") == 0))
810 sname = EVAX_COMMON_NAME;
811 else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0))
812 sname = EVAX_LOCAL_NAME;
813 }
814 else
815 sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ);
816
817 _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
818 _bfd_vms_output_short (abfd, section->alignment_power & 0xff);
819 if (bfd_is_com_section (section))
820 {
821 new_flags = (EGPS_S_V_OVR|EGPS_S_V_REL|EGPS_S_V_GBL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD|EGPS_S_V_COM);
822 }
823 else
824 {
825 new_flags = vms_esecflag_by_name (evax_section_flags, sname,
826 section->_raw_size > 0);
827 }
828 _bfd_vms_output_short (abfd, new_flags);
829 _bfd_vms_output_long (abfd, (unsigned long) section->_raw_size);
830 _bfd_vms_output_counted (abfd, sname);
831 _bfd_vms_output_flush (abfd);
832
833 last_index = section->index;
834 section = section->next;
835 }
836
837 /* output symbols */
838
839 #if VMS_DEBUG
840 vms_debug (3, "%d symbols found\n", abfd->symcount);
841 #endif
842
843 bfd_set_start_address (abfd, (bfd_vma)-1);
844
845 for (symnum = 0; symnum < abfd->symcount; symnum++)
846 {
847 char *hash;
848
849 symbol = abfd->outsymbols[symnum];
850 if (*(symbol->name) == '_')
851 {
852 if (strcmp (symbol->name, "__main") == 0)
853 bfd_set_start_address (abfd, (bfd_vma)symbol->value);
854 }
855 old_flags = symbol->flags;
856
857 if (old_flags & BSF_FILE)
858 continue;
859
860 if (((old_flags & (BSF_GLOBAL|BSF_WEAK)) == 0) /* not xdef */
861 && (!bfd_is_und_section (symbol->section))) /* and not xref */
862 continue; /* dont output */
863
864 /* 13 bytes egsd, max 64 chars name -> should be 77 bytes */
865
866 if (_bfd_vms_output_check (abfd, 80) < 0)
867 {
868 _bfd_vms_output_pop (abfd);
869 _bfd_vms_output_end (abfd);
870 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
871 _bfd_vms_output_long (abfd, 0);
872 _bfd_vms_output_push (abfd); /* prepare output for subrecords */
873 }
874
875 _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1);
876
877 _bfd_vms_output_short (abfd, 0); /* data type, alignment */
878
879 new_flags = 0;
880
881 if (old_flags & BSF_WEAK)
882 new_flags |= EGSY_S_V_WEAK;
883 if (bfd_is_com_section (symbol->section)) /* .comm */
884 new_flags |= (EGSY_S_V_WEAK|EGSY_S_V_COMM);
885
886 if (old_flags & BSF_FUNCTION)
887 {
888 new_flags |= EGSY_S_V_NORM;
889 new_flags |= EGSY_S_V_REL;
890 }
891 if (old_flags & (BSF_GLOBAL|BSF_WEAK))
892 {
893 new_flags |= EGSY_S_V_DEF;
894 if (!bfd_is_abs_section (symbol->section))
895 new_flags |= EGSY_S_V_REL;
896 }
897 _bfd_vms_output_short (abfd, new_flags);
898
899 if (old_flags & (BSF_GLOBAL | BSF_WEAK)) /* symbol definition */
900 {
901 uquad code_address = 0;
902 unsigned long ca_psindx = 0;
903 unsigned long psindx;
904
905 if (old_flags & BSF_FUNCTION)
906 {
907 code_address = ((asymbol *) (symbol->udata.p))->value;
908 ca_psindx = ((asymbol *) (symbol->udata.p))->section->index;
909 }
910 psindx = symbol->section->index;
911
912 _bfd_vms_output_quad (abfd, symbol->value);
913 _bfd_vms_output_quad (abfd, code_address);
914 _bfd_vms_output_long (abfd, ca_psindx);
915 _bfd_vms_output_long (abfd, psindx);
916 }
917 hash = _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ);
918 _bfd_vms_output_counted (abfd, hash);
919
920 _bfd_vms_output_flush (abfd);
921
922 }
923
924 _bfd_vms_output_alignment (abfd, 8);
925 _bfd_vms_output_pop (abfd);
926 _bfd_vms_output_end (abfd);
927
928 return 0;
929 }
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