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[netbsd-mini2440.git] / gnu / dist / gdb6 / bfd / vms-gsd.c
blob9d06cf78d0ea0443095f148121f1804c87eaf2b1
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, 2003, 2004, 2005
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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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 /* Typical sections for vax object files. */
33
34 #define VAX_CODE_NAME "$CODE"
35 #define VAX_DATA_NAME "$DATA"
36 #define VAX_ADDRESS_DATA_NAME "$ADDRESS_DATA"
37
38 /* Typical sections for evax object files. */
39
40 #define EVAX_ABS_NAME "$ABS$"
41 #define EVAX_CODE_NAME "$CODE$"
42 #define EVAX_LINK_NAME "$LINK$"
43 #define EVAX_DATA_NAME "$DATA$"
44 #define EVAX_BSS_NAME "$BSS$"
45 #define EVAX_READONLYADDR_NAME "$READONLY_ADDR$"
46 #define EVAX_READONLY_NAME "$READONLY$"
47 #define EVAX_LITERAL_NAME "$LITERAL$"
48 #define EVAX_COMMON_NAME "$COMMON$"
49 #define EVAX_LOCAL_NAME "$LOCAL$"
50
51 struct sec_flags_struct
52 {
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 {
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 {
90 { EVAX_ABS_NAME,
91 (EGPS_S_V_SHR),
92 (SEC_DATA),
93 (EGPS_S_V_SHR),
94 (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) },
95 { EVAX_CODE_NAME,
96 (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_EXE),
97 (SEC_CODE),
98 (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_EXE),
99 (SEC_IN_MEMORY | SEC_CODE | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) },
100 { EVAX_LITERAL_NAME,
101 (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD | EGPS_S_V_NOMOD),
102 (SEC_DATA | SEC_READONLY),
103 (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD),
104 (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) },
105 { EVAX_LINK_NAME,
106 (EGPS_S_V_REL | EGPS_S_V_RD),
107 (SEC_DATA | SEC_READONLY),
108 (EGPS_S_V_REL | EGPS_S_V_RD),
109 (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) },
110 { EVAX_DATA_NAME,
111 (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT | EGPS_S_V_NOMOD),
112 (SEC_DATA),
113 (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT),
114 (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) },
115 { EVAX_BSS_NAME,
116 (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT | EGPS_S_V_NOMOD),
117 (SEC_NO_FLAGS),
118 (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT | EGPS_S_V_NOMOD),
119 (SEC_IN_MEMORY | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) },
120 { EVAX_READONLYADDR_NAME,
121 (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_RD),
122 (SEC_DATA | SEC_READONLY),
123 (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_RD),
124 (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) },
125 { EVAX_READONLY_NAME,
126 (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD | EGPS_S_V_NOMOD),
127 (SEC_DATA | SEC_READONLY),
128 (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD),
129 (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) },
130 { EVAX_LOCAL_NAME,
131 (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT),
132 (SEC_DATA),
133 (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT),
134 (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) },
135 { NULL,
136 (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT),
137 (SEC_DATA),
138 (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT),
139 (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }
140 };
141
142 /* Retrieve bfd section flags by name and size. */
143
144 static flagword
145 vms_secflag_by_name (bfd *abfd,
146 struct sec_flags_struct *section_flags,
147 char *name,
148 int hassize)
149 {
150 int i = 0;
151
152 while (section_flags[i].name != NULL)
153 {
154 if ((PRIV (is_vax)?
155 strcasecmp (name, section_flags[i].name):
156 strcmp (name, section_flags[i].name)) == 0)
157 {
158 if (hassize)
159 return section_flags[i].flags_hassize;
160 else
161 return section_flags[i].flags_always;
162 }
163 i++;
164 }
165 if (hassize)
166 return section_flags[i].flags_hassize;
167 return section_flags[i].flags_always;
168 }
169
170 /* Retrieve vms section flags by name and size. */
171
172 static flagword
173 vms_esecflag_by_name (struct sec_flags_struct *section_flags,
174 char *name,
175 int hassize)
176 {
177 int i = 0;
178
179 while (section_flags[i].name != NULL)
180 {
181 if (strcmp (name, section_flags[i].name) == 0)
182 {
183 if (hassize)
184 return section_flags[i].vflags_hassize;
185 else
186 return section_flags[i].vflags_always;
187 }
188 i++;
189 }
190 if (hassize)
191 return section_flags[i].vflags_hassize;
192 return section_flags[i].vflags_always;
193 }
194
195 #if VMS_DEBUG
196
197 struct flagdescstruct { char *name; flagword value; };
198
199 /* Convert flag to printable string. */
200
201 static char *
202 flag2str (struct flagdescstruct * flagdesc, flagword flags)
203 {
204 static char res[64];
205 int next = 0;
206
207 res[0] = 0;
208 while (flagdesc->name != NULL)
209 {
210 if ((flags & flagdesc->value) != 0)
211 {
212 if (next)
213 strcat (res, ",");
214 else
215 next = 1;
216 strcat (res, flagdesc->name);
217 }
218 flagdesc++;
219 }
220 return res;
221 }
222 #endif
223
224 /* Input routines. */
225
226 /* Process GSD/EGSD record
227 return 0 on success, -1 on error. */
228
229 int
230 _bfd_vms_slurp_gsd (bfd * abfd, int objtype)
231 {
232 #if VMS_DEBUG
233 static struct flagdescstruct gpsflagdesc[] =
234 {
235 { "PIC", 0x0001 },
236 { "LIB", 0x0002 },
237 { "OVR", 0x0004 },
238 { "REL", 0x0008 },
239 { "GBL", 0x0010 },
240 { "SHR", 0x0020 },
241 { "EXE", 0x0040 },
242 { "RD", 0x0080 },
243 { "WRT", 0x0100 },
244 { "VEC", 0x0200 },
245 { "NOMOD", 0x0400 },
246 { "COM", 0x0800 },
247 { NULL, 0 }
248 };
249
250 static struct flagdescstruct gsyflagdesc[] =
251 {
252 { "WEAK", 0x0001 },
253 { "DEF", 0x0002 },
254 { "UNI", 0x0004 },
255 { "REL", 0x0008 },
256 { "COMM", 0x0010 },
257 { "VECEP", 0x0020 },
258 { "NORM", 0x0040 },
259 { NULL, 0 }
260 };
261 #endif
262
263 int gsd_type, gsd_size;
264 asection *section;
265 unsigned char *vms_rec;
266 flagword new_flags, old_flags;
267 char *name;
268 asymbol *symbol;
269 vms_symbol_entry *entry;
270 unsigned long base_addr;
271 unsigned long align_addr;
272 static unsigned int psect_idx = 0;
273
274 #if VMS_DEBUG
275 vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype);
276 #endif
277
278 switch (objtype)
279 {
280 case EOBJ_S_C_EGSD:
281 PRIV (vms_rec) += 8; /* Skip type, size, l_temp. */
282 PRIV (rec_size) -= 8;
283 break;
284 case OBJ_S_C_GSD:
285 PRIV (vms_rec) += 1;
286 PRIV (rec_size) -= 1;
287 break;
288 default:
289 return -1;
290 }
291
292 /* Calculate base address for each section. */
293 base_addr = 0L;
294
295 abfd->symcount = 0;
296
297 while (PRIV (rec_size) > 0)
298 {
299 vms_rec = PRIV (vms_rec);
300
301 if (objtype == OBJ_S_C_GSD)
302 gsd_type = *vms_rec;
303 else
304 {
305 _bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size);
306 gsd_type += EVAX_OFFSET;
307 }
308
309 #if VMS_DEBUG
310 vms_debug (3, "gsd_type %d\n", gsd_type);
311 #endif
312
313 switch (gsd_type)
314 {
315 case GSD_S_C_PSC:
316 {
317 /* Program section definition. */
318 asection *old_section = 0;
319
320 #if VMS_DEBUG
321 vms_debug (4, "GSD_S_C_PSC\n");
322 #endif
323 /* If this section isn't a bfd section. */
324 if (PRIV (is_vax) && (psect_idx < (abfd->section_count-1)))
325 {
326 /* Check for temporary section from TIR record. */
327 if (psect_idx < PRIV (section_count))
328 old_section = PRIV (sections)[psect_idx];
329 else
330 old_section = 0;
331 }
332
333 name = _bfd_vms_save_counted_string (vms_rec + 8);
334 section = bfd_make_section (abfd, name);
335 if (!section)
336 {
337 (*_bfd_error_handler) (_("bfd_make_section (%s) failed"),
338 name);
339 return -1;
340 }
341 old_flags = bfd_getl16 (vms_rec + 2);
342 section->size = bfd_getl32 (vms_rec + 4); /* allocation */
343 new_flags = vms_secflag_by_name (abfd, vax_section_flags, name,
344 section->size > 0);
345 if (old_flags & EGPS_S_V_REL)
346 new_flags |= SEC_RELOC;
347 if (old_flags & GPS_S_M_OVR)
348 new_flags |= SEC_IS_COMMON;
349 if (!bfd_set_section_flags (abfd, section, new_flags))
350 {
351 (*_bfd_error_handler)
352 (_("bfd_set_section_flags (%s, %x) failed"),
353 name, new_flags);
354 return -1;
355 }
356 section->alignment_power = vms_rec[1];
357 align_addr = (1 << section->alignment_power);
358 if ((base_addr % align_addr) != 0)
359 base_addr += (align_addr - (base_addr % align_addr));
360 section->vma = (bfd_vma)base_addr;
361 base_addr += section->size;
362
363 /* Global section is common symbol. */
364
365 if (old_flags & GPS_S_M_GBL)
366 {
367 entry = _bfd_vms_enter_symbol (abfd, name);
368 if (entry == NULL)
369 {
370 bfd_set_error (bfd_error_no_memory);
371 return -1;
372 }
373 symbol = entry->symbol;
374
375 symbol->value = 0;
376 symbol->section = section;
377 symbol->flags = (BSF_GLOBAL | BSF_SECTION_SYM | BSF_OLD_COMMON);
378 }
379
380 /* Copy saved contents if old_section set. */
381 if (old_section != 0)
382 {
383 section->contents = old_section->contents;
384 if (section->size < old_section->size)
385 {
386 (*_bfd_error_handler)
387 (_("Size mismatch section %s=%lx, %s=%lx"),
388 old_section->name,
389 (unsigned long) old_section->size,
390 section->name,
391 (unsigned long) section->size);
392 return -1;
393 }
394 else if (section->size > old_section->size)
395 {
396 section->contents = bfd_realloc (old_section->contents,
397 section->size);
398 if (section->contents == NULL)
399 {
400 bfd_set_error (bfd_error_no_memory);
401 return -1;
402 }
403 }
404 }
405 else
406 {
407 section->contents = bfd_zmalloc (section->size);
408 if (section->contents == NULL)
409 {
410 bfd_set_error (bfd_error_no_memory);
411 return -1;
412 }
413 }
414 #if VMS_DEBUG
415 vms_debug (4, "gsd psc %d (%s, flags %04x=%s) ",
416 section->index, name, old_flags, flag2str (gpsflagdesc, old_flags));
417 vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n",
418 section->size, section->vma, section->contents);
419 #endif
420
421 gsd_size = vms_rec[8] + 9;
422
423 psect_idx++;
424 }
425 break;
426
427 case GSD_S_C_EPM:
428 case GSD_S_C_EPMW:
429 #if VMS_DEBUG
430 vms_debug (4, "gsd epm\n");
431 #endif
432 /* Fall through. */
433 case GSD_S_C_SYM:
434 case GSD_S_C_SYMW:
435 {
436 int name_offset = 0, value_offset = 0;
437
438 /* Symbol specification (definition or reference). */
439 #if VMS_DEBUG
440 vms_debug (4, "GSD_S_C_SYM(W)\n");
441 #endif
442 old_flags = bfd_getl16 (vms_rec + 2);
443 new_flags = BSF_NO_FLAGS;
444
445 if (old_flags & GSY_S_M_WEAK)
446 new_flags |= BSF_WEAK;
447
448 switch (gsd_type)
449 {
450 case GSD_S_C_EPM:
451 name_offset = 11;
452 value_offset = 5;
453 new_flags |= BSF_FUNCTION;
454 break;
455 case GSD_S_C_EPMW:
456 name_offset = 12;
457 value_offset = 6;
458 new_flags |= BSF_FUNCTION;
459 break;
460 case GSD_S_C_SYM:
461 if (old_flags & GSY_S_M_DEF) /* Symbol definition. */
462 name_offset = 9;
463 else
464 name_offset = 4;
465 value_offset = 5;
466 break;
467 case GSD_S_C_SYMW:
468 if (old_flags & GSY_S_M_DEF) /* Symbol definition. */
469 name_offset = 10;
470 else
471 name_offset = 5;
472 value_offset = 6;
473 break;
474 }
475
476 /* Save symbol in vms_symbol_table. */
477 entry = _bfd_vms_enter_symbol
478 (abfd, _bfd_vms_save_counted_string (vms_rec + name_offset));
479 if (entry == NULL)
480 {
481 bfd_set_error (bfd_error_no_memory);
482 return -1;
483 }
484 symbol = entry->symbol;
485
486 if (old_flags & GSY_S_M_DEF)
487 {
488 /* Symbol definition. */
489 int psect;
490
491 symbol->value = bfd_getl32 (vms_rec + value_offset);
492 if ((gsd_type == GSD_S_C_SYMW)
493 || (gsd_type == GSD_S_C_EPMW))
494 psect = bfd_getl16 (vms_rec + value_offset - 2);
495 else
496 psect = vms_rec[value_offset-1];
497
498 symbol->section = (asection *) (size_t) psect;
499 #if VMS_DEBUG
500 vms_debug (4, "gsd sym def #%d (%s, %d [%p], %04x=%s)\n", abfd->symcount,
501 symbol->name, (int)symbol->section, symbol->section, old_flags, flag2str (gsyflagdesc, old_flags));
502 #endif
503 }
504 else
505 {
506 /* Symbol reference. */
507 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
508 #if VMS_DEBUG
509 vms_debug (4, "gsd sym ref #%d (%s, %s [%p], %04x=%s)\n",
510 abfd->symcount, symbol->name, symbol->section->name,
511 symbol->section, old_flags, flag2str (gsyflagdesc, old_flags));
512 #endif
513 }
514
515 gsd_size = vms_rec[name_offset] + name_offset + 1;
516 symbol->flags = new_flags;
517 }
518
519 break;
520
521 case GSD_S_C_PRO:
522 case GSD_S_C_PROW:
523 #if VMS_DEBUG
524 vms_debug (4, "gsd pro\n");
525 #endif
526 break;
527 case GSD_S_C_IDC:
528 #if VMS_DEBUG
529 vms_debug (4, "gsd idc\n");
530 #endif
531 break;
532 case GSD_S_C_ENV:
533 #if VMS_DEBUG
534 vms_debug (4, "gsd env\n");
535 #endif
536 break;
537 case GSD_S_C_LSY:
538 #if VMS_DEBUG
539 vms_debug (4, "gsd lsy\n");
540 #endif
541 break;
542 case GSD_S_C_LEPM:
543 #if VMS_DEBUG
544 vms_debug (4, "gsd lepm\n");
545 #endif
546 break;
547 case GSD_S_C_LPRO:
548 #if VMS_DEBUG
549 vms_debug (4, "gsd lpro\n");
550 #endif
551 break;
552 case GSD_S_C_SPSC:
553 #if VMS_DEBUG
554 vms_debug (4, "gsd spsc\n");
555 #endif
556 break;
557 case GSD_S_C_SYMV:
558 #if VMS_DEBUG
559 vms_debug (4, "gsd symv\n");
560 #endif
561 break;
562 case GSD_S_C_EPMV:
563 #if VMS_DEBUG
564 vms_debug (4, "gsd epmv\n");
565 #endif
566 break;
567 case GSD_S_C_PROV:
568 #if VMS_DEBUG
569 vms_debug (4, "gsd prov\n");
570 #endif
571 break;
572
573 case EGSD_S_C_PSC + EVAX_OFFSET:
574 {
575 /* Program section definition. */
576 name = _bfd_vms_save_counted_string (vms_rec + 12);
577 section = bfd_make_section (abfd, name);
578 if (!section)
579 return -1;
580 old_flags = bfd_getl16 (vms_rec + 6);
581 section->size = bfd_getl32 (vms_rec + 8); /* Allocation. */
582 new_flags = vms_secflag_by_name (abfd, evax_section_flags, name,
583 section->size > 0);
584 if (old_flags & EGPS_S_V_REL)
585 new_flags |= SEC_RELOC;
586 if (!bfd_set_section_flags (abfd, section, new_flags))
587 return -1;
588 section->alignment_power = vms_rec[4];
589 align_addr = (1 << section->alignment_power);
590 if ((base_addr % align_addr) != 0)
591 base_addr += (align_addr - (base_addr % align_addr));
592 section->vma = (bfd_vma)base_addr;
593 base_addr += section->size;
594 section->contents = bfd_zmalloc (section->size);
595 if (section->contents == NULL)
596 return -1;
597 #if VMS_DEBUG
598 vms_debug (4, "egsd psc %d (%s, flags %04x=%s) ",
599 section->index, name, old_flags, flag2str (gpsflagdesc, old_flags));
600 vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n",
601 section->size, section->vma, section->contents);
602 #endif
603 }
604 break;
605
606 case EGSD_S_C_SYM + EVAX_OFFSET:
607 {
608 /* Symbol specification (definition or reference). */
609 symbol = bfd_make_empty_symbol (abfd);
610 if (symbol == 0)
611 return -1;
612
613 old_flags = bfd_getl16 (vms_rec + 6);
614 new_flags = BSF_NO_FLAGS;
615
616 if (old_flags & EGSY_S_V_WEAK)
617 new_flags |= BSF_WEAK;
618
619 if (vms_rec[6] & EGSY_S_V_DEF)
620 {
621 /* Symbol definition. */
622 symbol->name = _bfd_vms_save_counted_string (vms_rec + 32);
623 if (old_flags & EGSY_S_V_NORM)
624 /* Proc def. */
625 new_flags |= BSF_FUNCTION;
626
627 symbol->value = bfd_getl64 (vms_rec + 8);
628 symbol->section = (asection *) ((unsigned long) bfd_getl32 (vms_rec + 28));
629 #if VMS_DEBUG
630 vms_debug (4, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount,
631 symbol->name, (int) symbol->section, old_flags,
632 flag2str (gsyflagdesc, old_flags));
633 #endif
634 }
635 else
636 {
637 /* Symbol reference. */
638 symbol->name = _bfd_vms_save_counted_string (vms_rec + 8);
639 #if VMS_DEBUG
640 vms_debug (4, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount,
641 symbol->name, old_flags, flag2str (gsyflagdesc, old_flags));
642 #endif
643 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
644 }
645
646 symbol->flags = new_flags;
647
648 /* Save symbol in vms_symbol_table. */
649 entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV (vms_symbol_table),
650 symbol->name,
651 TRUE, FALSE);
652 if (entry == NULL)
653 {
654 bfd_set_error (bfd_error_no_memory);
655 return -1;
656 }
657
658 if (entry->symbol != NULL)
659 {
660 /* FIXME ?, DEC C generates this. */
661 #if VMS_DEBUG
662 vms_debug (4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name);
663 #endif
664 }
665 else
666 {
667 entry->symbol = symbol;
668 PRIV (gsd_sym_count)++;
669 abfd->symcount++;
670 }
671 }
672 break;
673
674 case EGSD_S_C_IDC + EVAX_OFFSET:
675 break;
676
677 default:
678 (*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type);
679 bfd_set_error (bfd_error_bad_value);
680 return -1;
681 }
682
683 PRIV (rec_size) -= gsd_size;
684 PRIV (vms_rec) += gsd_size;
685 }
686
687 if (abfd->symcount > 0)
688 abfd->flags |= HAS_SYMS;
689
690 return 0;
691 }
692
693 /* Output routines. */
694
695 /* Write section and symbol directory of bfd abfd. */
696
697 int
698 _bfd_vms_write_gsd (bfd *abfd, int objtype ATTRIBUTE_UNUSED)
699 {
700 asection *section;
701 asymbol *symbol;
702 unsigned int symnum;
703 int last_index = -1;
704 char dummy_name[10];
705 char *sname;
706 flagword new_flags, old_flags;
707
708 #if VMS_DEBUG
709 vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype);
710 #endif
711
712 /* Output sections. */
713 section = abfd->sections;
714 #if VMS_DEBUG
715 vms_debug (3, "%d sections found\n", abfd->section_count);
716 #endif
717
718 /* Egsd is quadword aligned. */
719 _bfd_vms_output_alignment (abfd, 8);
720
721 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
722 _bfd_vms_output_long (abfd, 0);
723 /* Prepare output for subrecords. */
724 _bfd_vms_output_push (abfd);
725
726 while (section != 0)
727 {
728 #if VMS_DEBUG
729 vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->size);
730 #endif
731
732 /* 13 bytes egsd, max 31 chars name -> should be 44 bytes. */
733 if (_bfd_vms_output_check (abfd, 64) < 0)
734 {
735 _bfd_vms_output_pop (abfd);
736 _bfd_vms_output_end (abfd);
737 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
738 _bfd_vms_output_long (abfd, 0);
739 /* Prepare output for subrecords. */
740 _bfd_vms_output_push (abfd);
741 }
742
743 /* Create dummy sections to keep consecutive indices. */
744 while (section->index - last_index > 1)
745 {
746 #if VMS_DEBUG
747 vms_debug (3, "index %d, last %d\n", section->index, last_index);
748 #endif
749 _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
750 _bfd_vms_output_short (abfd, 0);
751 _bfd_vms_output_short (abfd, 0);
752 _bfd_vms_output_long (abfd, 0);
753 sprintf (dummy_name, ".DUMMY%02d", last_index);
754 _bfd_vms_output_counted (abfd, dummy_name);
755 _bfd_vms_output_flush (abfd);
756 last_index++;
757 }
758
759 /* Don't know if this is necessary for the linker but for now it keeps
760 vms_slurp_gsd happy */
761 sname = (char *)section->name;
762 if (*sname == '.')
763 {
764 sname++;
765 if ((*sname == 't') && (strcmp (sname, "text") == 0))
766 sname = PRIV (is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME;
767 else if ((*sname == 'd') && (strcmp (sname, "data") == 0))
768 sname = PRIV (is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME;
769 else if ((*sname == 'b') && (strcmp (sname, "bss") == 0))
770 sname = EVAX_BSS_NAME;
771 else if ((*sname == 'l') && (strcmp (sname, "link") == 0))
772 sname = EVAX_LINK_NAME;
773 else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0))
774 sname = EVAX_READONLY_NAME;
775 else if ((*sname == 'l') && (strcmp (sname, "literal") == 0))
776 sname = EVAX_LITERAL_NAME;
777 else if ((*sname == 'c') && (strcmp (sname, "comm") == 0))
778 sname = EVAX_COMMON_NAME;
779 else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0))
780 sname = EVAX_LOCAL_NAME;
781 }
782 else
783 sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ);
784
785 _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
786 _bfd_vms_output_short (abfd, section->alignment_power & 0xff);
787 if (bfd_is_com_section (section))
788 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);
789 else
790 new_flags = vms_esecflag_by_name (evax_section_flags, sname,
791 section->size > 0);
792
793 _bfd_vms_output_short (abfd, new_flags);
794 _bfd_vms_output_long (abfd, (unsigned long) section->size);
795 _bfd_vms_output_counted (abfd, sname);
796 _bfd_vms_output_flush (abfd);
797
798 last_index = section->index;
799 section = section->next;
800 }
801
802 /* Output symbols. */
803 #if VMS_DEBUG
804 vms_debug (3, "%d symbols found\n", abfd->symcount);
805 #endif
806
807 bfd_set_start_address (abfd, (bfd_vma) -1);
808
809 for (symnum = 0; symnum < abfd->symcount; symnum++)
810 {
811 char *hash;
812
813 symbol = abfd->outsymbols[symnum];
814 if (*(symbol->name) == '_')
815 {
816 if (strcmp (symbol->name, "__main") == 0)
817 bfd_set_start_address (abfd, (bfd_vma)symbol->value);
818 }
819 old_flags = symbol->flags;
820
821 if (old_flags & BSF_FILE)
822 continue;
823
824 if (((old_flags & (BSF_GLOBAL | BSF_WEAK)) == 0) /* Not xdef... */
825 && (!bfd_is_und_section (symbol->section))) /* ...and not xref. */
826 continue; /* Dont output. */
827
828 /* 13 bytes egsd, max 64 chars name -> should be 77 bytes. */
829 if (_bfd_vms_output_check (abfd, 80) < 0)
830 {
831 _bfd_vms_output_pop (abfd);
832 _bfd_vms_output_end (abfd);
833 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
834 _bfd_vms_output_long (abfd, 0);
835 /* Prepare output for subrecords. */
836 _bfd_vms_output_push (abfd);
837 }
838
839 _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1);
840
841 /* Data type, alignment. */
842 _bfd_vms_output_short (abfd, 0);
843
844 new_flags = 0;
845
846 if (old_flags & BSF_WEAK)
847 new_flags |= EGSY_S_V_WEAK;
848 if (bfd_is_com_section (symbol->section))
849 new_flags |= (EGSY_S_V_WEAK | EGSY_S_V_COMM);
850
851 if (old_flags & BSF_FUNCTION)
852 {
853 new_flags |= EGSY_S_V_NORM;
854 new_flags |= EGSY_S_V_REL;
855 }
856 if (old_flags & (BSF_GLOBAL | BSF_WEAK))
857 {
858 new_flags |= EGSY_S_V_DEF;
859 if (!bfd_is_abs_section (symbol->section))
860 new_flags |= EGSY_S_V_REL;
861 }
862 _bfd_vms_output_short (abfd, new_flags);
863
864 if (old_flags & (BSF_GLOBAL | BSF_WEAK))
865 {
866 /* Symbol definition. */
867 uquad code_address = 0;
868 unsigned long ca_psindx = 0;
869 unsigned long psindx;
870
871 if ((old_flags & BSF_FUNCTION) && symbol->udata.p != NULL)
872 {
873 code_address = ((asymbol *) (symbol->udata.p))->value;
874 ca_psindx = ((asymbol *) (symbol->udata.p))->section->index;
875 }
876 psindx = symbol->section->index;
877
878 _bfd_vms_output_quad (abfd, symbol->value);
879 _bfd_vms_output_quad (abfd, code_address);
880 _bfd_vms_output_long (abfd, ca_psindx);
881 _bfd_vms_output_long (abfd, psindx);
882 }
883 hash = _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ);
884 _bfd_vms_output_counted (abfd, hash);
885
886 _bfd_vms_output_flush (abfd);
887
888 }
889
890 _bfd_vms_output_alignment (abfd, 8);
891 _bfd_vms_output_pop (abfd);
892 _bfd_vms_output_end (abfd);
893
894 return 0;
895 }
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