2001-02-17 Philip Blundell <philb@gnu.org>
[binutils.git] / bfd / vms.c
blobb52d81709b97f0f1ad86fdc4ac4674ac0d6075f2
1 /* vms.c -- BFD back-end for VAX (openVMS/VAX) and
2 EVAX (openVMS/Alpha) files.
3 Copyright 1996, 97, 98, 99, 2000 Free Software Foundation, Inc.
5 Written by Klaus K"ampf (kkaempf@rmi.de)
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 #include "bfd.h"
22 #include "sysdep.h"
23 #include "bfdlink.h"
24 #include "libbfd.h"
26 #include "vms.h"
28 static boolean vms_initialize PARAMS ((bfd *));
29 static unsigned int priv_section_count;
30 static boolean fill_section_ptr PARAMS ((struct bfd_hash_entry *, PTR));
31 static boolean vms_fixup_sections PARAMS ((bfd *));
32 static boolean copy_symbols PARAMS ((struct bfd_hash_entry *, PTR));
33 static bfd_reloc_status_type reloc_nil
34 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
35 static const struct bfd_target *vms_object_p PARAMS ((bfd *abfd));
36 static const struct bfd_target *vms_archive_p PARAMS ((bfd *abfd));
37 static boolean vms_mkobject PARAMS ((bfd *abfd));
38 static boolean vms_write_object_contents PARAMS ((bfd *abfd));
39 static boolean vms_close_and_cleanup PARAMS ((bfd *abfd));
40 static boolean vms_bfd_free_cached_info PARAMS ((bfd *abfd));
41 static boolean vms_new_section_hook PARAMS ((bfd *abfd, asection *section));
42 static boolean vms_get_section_contents
43 PARAMS ((bfd *abfd, asection *section, PTR x1, file_ptr x2,
44 bfd_size_type x3));
45 static boolean vms_get_section_contents_in_window
46 PARAMS ((bfd *abfd, asection *section, bfd_window *w, file_ptr offset,
47 bfd_size_type count));
48 static boolean vms_bfd_copy_private_bfd_data PARAMS ((bfd *src, bfd *dest));
49 static boolean vms_bfd_copy_private_section_data
50 PARAMS ((bfd *srcbfd, asection *srcsec, bfd *dstbfd, asection *dstsec));
51 static boolean vms_bfd_copy_private_symbol_data
52 PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym));
53 static boolean vms_bfd_print_private_bfd_data
54 PARAMS ((bfd *abfd, void *file));
55 static char *vms_core_file_failing_command PARAMS ((bfd *abfd));
56 static int vms_core_file_failing_signal PARAMS ((bfd *abfd));
57 static boolean vms_core_file_matches_executable_p
58 PARAMS ((bfd *abfd, bfd *bbfd));
59 static boolean vms_slurp_armap PARAMS ((bfd *abfd));
60 static boolean vms_slurp_extended_name_table PARAMS ((bfd *abfd));
61 static boolean vms_construct_extended_name_table
62 PARAMS ((bfd *abfd, char **tabloc, bfd_size_type *tablen,
63 const char **name));
64 static void vms_truncate_arname
65 PARAMS ((bfd *abfd, CONST char *pathname, char *arhdr));
66 static boolean vms_write_armap
67 PARAMS ((bfd *arch, unsigned int elength, struct orl *map,
68 unsigned int orl_count, int stridx));
69 static PTR vms_read_ar_hdr PARAMS ((bfd *abfd));
70 static bfd *vms_get_elt_at_index PARAMS ((bfd *abfd, symindex index));
71 static bfd *vms_openr_next_archived_file PARAMS ((bfd *arch, bfd *prev));
72 static boolean vms_update_armap_timestamp PARAMS ((bfd *abfd));
73 static int vms_generic_stat_arch_elt PARAMS ((bfd *abfd, struct stat *stat));
74 static long vms_get_symtab_upper_bound PARAMS ((bfd *abfd));
75 static long vms_get_symtab PARAMS ((bfd *abfd, asymbol **symbols));
76 static void vms_print_symbol
77 PARAMS ((bfd *abfd, PTR file, asymbol *symbol, bfd_print_symbol_type how));
78 static void vms_get_symbol_info
79 PARAMS ((bfd *abfd, asymbol *symbol, symbol_info *ret));
80 static boolean vms_bfd_is_local_label_name PARAMS ((bfd *abfd, const char *));
81 static alent *vms_get_lineno PARAMS ((bfd *abfd, asymbol *symbol));
82 static boolean vms_find_nearest_line
83 PARAMS ((bfd *abfd, asection *section, asymbol **symbols, bfd_vma offset,
84 const char **file, const char **func, unsigned int *line));
85 static asymbol *vms_bfd_make_debug_symbol
86 PARAMS ((bfd *abfd, void *ptr, unsigned long size));
87 static long vms_read_minisymbols
88 PARAMS ((bfd *abfd, boolean dynamic, PTR *minisymsp, unsigned int *sizep));
89 static asymbol *vms_minisymbol_to_symbol
90 PARAMS ((bfd *abfd, boolean dynamic, const PTR minisym, asymbol *sym));
91 static long vms_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
92 static long vms_canonicalize_reloc
93 PARAMS ((bfd *abfd, asection *srcsec, arelent **location,
94 asymbol **symbols));
95 static const struct reloc_howto_struct *vms_bfd_reloc_type_lookup
96 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
97 static boolean vms_set_arch_mach
98 PARAMS ((bfd *abfd, enum bfd_architecture arch, unsigned long mach));
99 static boolean vms_set_section_contents
100 PARAMS ((bfd *abfd, asection *section, PTR location, file_ptr offset,
101 bfd_size_type count));
102 static int vms_sizeof_headers PARAMS ((bfd *abfd, boolean reloc));
103 static bfd_byte *vms_bfd_get_relocated_section_contents
104 PARAMS ((bfd *abfd, struct bfd_link_info *link_info,
105 struct bfd_link_order *link_order, bfd_byte *data,
106 boolean relocateable, asymbol **symbols));
107 static boolean vms_bfd_relax_section
108 PARAMS ((bfd *abfd, asection *section, struct bfd_link_info *link_info,
109 boolean *again));
110 static boolean vms_bfd_gc_sections
111 PARAMS ((bfd *abfd, struct bfd_link_info *link_info));
112 static struct bfd_link_hash_table *vms_bfd_link_hash_table_create
113 PARAMS ((bfd *abfd));
114 static boolean vms_bfd_link_add_symbols
115 PARAMS ((bfd *abfd, struct bfd_link_info *link_info));
116 static boolean vms_bfd_final_link
117 PARAMS ((bfd *abfd, struct bfd_link_info *link_info));
118 static boolean vms_bfd_link_split_section
119 PARAMS ((bfd *abfd, asection *section));
120 static long vms_get_dynamic_symtab_upper_bound PARAMS ((bfd *abfd));
121 static long vms_canonicalize_dynamic_symtab
122 PARAMS ((bfd *abfd, asymbol **symbols));
123 static long vms_get_dynamic_reloc_upper_bound PARAMS ((bfd *abfd));
124 static long vms_canonicalize_dynamic_reloc
125 PARAMS ((bfd *abfd, arelent **arel, asymbol **symbols));
126 static boolean vms_bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
127 static boolean vms_bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags));
129 #define vms_make_empty_symbol _bfd_vms_make_empty_symbol
131 /*===========================================================================*/
133 const bfd_target vms_alpha_vec =
135 "vms-alpha", /* name */
136 bfd_target_evax_flavour,
137 BFD_ENDIAN_LITTLE, /* data byte order is little */
138 BFD_ENDIAN_LITTLE, /* header byte order is little */
140 (HAS_RELOC | HAS_SYMS
141 | WP_TEXT | D_PAGED), /* object flags */
142 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
143 | SEC_READONLY | SEC_CODE | SEC_DATA
144 | SEC_HAS_CONTENTS | SEC_IN_MEMORY), /* sect flags */
145 0, /* symbol_leading_char */
146 ' ', /* ar_pad_char */
147 15, /* ar_max_namelen */
148 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
149 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
150 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
151 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
152 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
153 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
155 {_bfd_dummy_target, vms_object_p, /* bfd_check_format */
156 vms_archive_p, _bfd_dummy_target},
157 {bfd_false, vms_mkobject, /* bfd_set_format */
158 _bfd_generic_mkarchive, bfd_false},
159 {bfd_false, vms_write_object_contents, /* bfd_write_contents */
160 _bfd_write_archive_contents, bfd_false},
162 BFD_JUMP_TABLE_GENERIC (vms),
163 BFD_JUMP_TABLE_COPY (vms),
164 BFD_JUMP_TABLE_CORE (vms),
165 BFD_JUMP_TABLE_ARCHIVE (vms),
166 BFD_JUMP_TABLE_SYMBOLS (vms),
167 BFD_JUMP_TABLE_RELOCS (vms),
168 BFD_JUMP_TABLE_WRITE (vms),
169 BFD_JUMP_TABLE_LINK (vms),
170 BFD_JUMP_TABLE_DYNAMIC (vms),
172 NULL,
174 (PTR) 0
177 const bfd_target vms_vax_vec =
179 "vms-vax", /* name */
180 bfd_target_ovax_flavour,
181 BFD_ENDIAN_LITTLE, /* data byte order is little */
182 BFD_ENDIAN_LITTLE, /* header byte order is little */
184 (HAS_RELOC | HAS_SYMS /* object flags */
185 | WP_TEXT | D_PAGED
186 | HAS_LINENO | HAS_DEBUG | HAS_LOCALS),
188 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
189 | SEC_READONLY | SEC_CODE | SEC_DATA
190 | SEC_HAS_CONTENTS | SEC_IN_MEMORY), /* sect flags */
191 0, /* symbol_leading_char */
192 ' ', /* ar_pad_char */
193 15, /* ar_max_namelen */
194 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
195 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
196 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
197 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
198 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
199 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
201 {_bfd_dummy_target, vms_object_p, /* bfd_check_format */
202 vms_archive_p, _bfd_dummy_target},
203 {bfd_false, vms_mkobject, /* bfd_set_format */
204 _bfd_generic_mkarchive, bfd_false},
205 {bfd_false, vms_write_object_contents, /* bfd_write_contents */
206 _bfd_write_archive_contents, bfd_false},
208 BFD_JUMP_TABLE_GENERIC (vms),
209 BFD_JUMP_TABLE_COPY (vms),
210 BFD_JUMP_TABLE_CORE (vms),
211 BFD_JUMP_TABLE_ARCHIVE (vms),
212 BFD_JUMP_TABLE_SYMBOLS (vms),
213 BFD_JUMP_TABLE_RELOCS (vms),
214 BFD_JUMP_TABLE_WRITE (vms),
215 BFD_JUMP_TABLE_LINK (vms),
216 BFD_JUMP_TABLE_DYNAMIC (vms),
218 NULL,
220 (PTR) 0
223 /*===========================================================================*/
225 /* Initialize private data */
227 static boolean
228 vms_initialize (abfd)
229 bfd *abfd;
231 int i;
233 if (abfd->tdata.any != 0)
234 return true;
236 bfd_set_start_address (abfd, (bfd_vma)-1);
238 abfd->tdata.any = ((struct vms_private_data_struct*)
239 bfd_malloc (sizeof (struct vms_private_data_struct)));
240 if (abfd->tdata.any == 0)
241 return false;
243 #ifdef __ALPHA
244 PRIV(is_vax) = 0;
245 #else
246 PRIV(is_vax) = 1;
247 #endif
248 PRIV(vms_buf) = 0;
249 PRIV(buf_size) = 0;
250 PRIV(rec_length) = 0;
251 PRIV(file_format) = FF_UNKNOWN;
252 PRIV(fixup_done) = false;
253 PRIV(sections) = NULL;
255 PRIV(stack) = ((struct stack_struct *)
256 bfd_malloc (sizeof (struct stack_struct) * STACKSIZE));
257 if (PRIV(stack) == 0)
259 vms_init_no_mem1:
260 free (abfd->tdata.any);
261 abfd->tdata.any = 0;
262 return false;
264 PRIV(stackptr) = 0;
266 PRIV(vms_symbol_table) = ((struct bfd_hash_table *)
267 bfd_malloc (sizeof (struct bfd_hash_table)));
268 if (PRIV(vms_symbol_table) == 0)
270 vms_init_no_mem2:
271 free (PRIV(stack));
272 PRIV(stack) = 0;
273 goto vms_init_no_mem1;
276 if (!bfd_hash_table_init (PRIV(vms_symbol_table), _bfd_vms_hash_newfunc))
277 return false;
279 PRIV(location_stack) = ((struct location_struct *)
280 bfd_malloc (sizeof (struct location_struct)
281 * LOCATION_SAVE_SIZE));
282 if (PRIV(location_stack) == 0)
284 vms_init_no_mem3:
285 free (PRIV(vms_symbol_table));
286 PRIV(vms_symbol_table) = 0;
287 goto vms_init_no_mem2;
290 for (i = 0; i < VMS_SECTION_COUNT; i++)
291 PRIV(vms_section_table)[i] = NULL;
293 PRIV(output_buf) = (unsigned char *) malloc (MAX_OUTREC_SIZE);
294 if (PRIV(output_buf) == 0)
296 free (PRIV(location_stack));
297 PRIV(location_stack) = 0;
298 goto vms_init_no_mem3;
300 PRIV(push_level) = 0;
301 PRIV(pushed_size) = 0;
302 PRIV(length_pos) = 2;
303 PRIV(output_size) = 0;
304 PRIV(output_alignment) = 1;
306 return true;
309 /* Fill symbol->section with section ptr
310 symbol->section is filled with the section index for defined symbols
311 during reading the GSD/EGSD section. But we need the pointer to the
312 bfd section later.
314 It has the correct value for referenced (undefined section) symbols
316 called from bfd_hash_traverse in vms_fixup_sections */
318 static boolean
319 fill_section_ptr (entry, sections)
320 struct bfd_hash_entry *entry;
321 PTR sections;
323 asection *sec;
324 asymbol *sym;
326 sym = ((vms_symbol_entry *)entry)->symbol;
327 sec = sym->section;
329 #if VMS_DEBUG
330 vms_debug (6, "fill_section_ptr: sym %p, sec %p\n", sym, sec);
331 #endif
333 /* fill forward references (these contain section number, not section ptr). */
335 if ((unsigned int) sec < priv_section_count)
337 sec = ((vms_symbol_entry *)entry)->symbol->section =
338 ((asection **)sections)[(int)sec];
341 if (strcmp (sym->name, sec->name) == 0)
342 sym->flags |= BSF_SECTION_SYM;
344 return true;
347 /* Fixup sections
348 set up all pointers and arrays, counters and sizes are fixed now
350 we build a private sections vector for easy access since sections
351 are always referenced by an index number.
353 alloc PRIV(sections) according to abfd->section_count
354 copy abfd->sections to PRIV(sections) */
356 static boolean
357 vms_fixup_sections (abfd)
358 bfd *abfd;
360 if (PRIV(fixup_done))
361 return true;
364 * traverse symbol table and fill in all section pointers
367 /* can't provide section count as argument to fill_section_ptr(). */
368 priv_section_count = PRIV(section_count);
369 bfd_hash_traverse (PRIV(vms_symbol_table), fill_section_ptr,
370 (PTR) (PRIV(sections)));
372 PRIV(fixup_done) = true;
374 return true;
377 /*===========================================================================*/
379 /* Check the format for a file being read.
380 Return a (bfd_target *) if it's an object file or zero if not. */
382 static const struct bfd_target *
383 vms_object_p (abfd)
384 bfd *abfd;
386 int err = 0;
387 int prev_type;
388 const struct bfd_target *target_vector = 0;
389 const bfd_arch_info_type *arch = 0;
391 #if VMS_DEBUG
392 vms_debug (1, "vms_object_p(%p)\n", abfd);
393 #endif
395 if (!vms_initialize (abfd))
397 fprintf (stderr, "vms_initialize () failed !!\n");
398 return 0;
401 if (bfd_seek (abfd, 0L, SEEK_SET))
403 bfd_set_error (bfd_error_file_truncated);
404 return 0;
407 prev_type = -1;
411 #if VMS_DEBUG
412 vms_debug (7, "reading at %08lx\n", bfd_tell(abfd));
413 #endif
414 if (_bfd_vms_next_record (abfd) < 0)
416 #if VMS_DEBUG
417 vms_debug (2, "next_record failed\n");
418 #endif
419 bfd_set_error (bfd_error_wrong_format);
420 return 0;
423 if ((prev_type == EOBJ_S_C_EGSD)
424 && (PRIV(rec_type) != EOBJ_S_C_EGSD))
426 if (vms_fixup_sections (abfd) == false)
428 #if VMS_DEBUG
429 vms_debug (2, "vms_fixup_sections failed\n");
430 #endif
431 bfd_set_error (bfd_error_wrong_format);
432 return 0;
436 prev_type = PRIV(rec_type);
438 if (target_vector == 0)
440 if (prev_type <= OBJ_S_C_MAXRECTYP)
441 target_vector = &vms_vax_vec;
442 else
443 target_vector = &vms_alpha_vec;
446 switch (prev_type)
448 case OBJ_S_C_HDR:
449 case EOBJ_S_C_EMH:
450 err = _bfd_vms_slurp_hdr (abfd, prev_type);
451 break;
452 case OBJ_S_C_EOM:
453 case OBJ_S_C_EOMW:
454 case EOBJ_S_C_EEOM:
455 err = _bfd_vms_slurp_eom (abfd, prev_type);
456 break;
457 case OBJ_S_C_GSD:
458 case EOBJ_S_C_EGSD:
459 err = _bfd_vms_slurp_gsd (abfd, prev_type);
460 break;
461 case OBJ_S_C_TIR:
462 case EOBJ_S_C_ETIR:
463 err = _bfd_vms_slurp_tir (abfd, prev_type);
464 break;
465 case OBJ_S_C_DBG:
466 case EOBJ_S_C_EDBG:
467 err = _bfd_vms_slurp_dbg (abfd, prev_type);
468 break;
469 case OBJ_S_C_TBT:
470 case EOBJ_S_C_ETBT:
471 err = _bfd_vms_slurp_tbt (abfd, prev_type);
472 break;
473 case OBJ_S_C_LNK:
474 err = _bfd_vms_slurp_lnk (abfd, prev_type);
475 break;
476 default:
477 err = -1;
479 if (err != 0)
481 #if VMS_DEBUG
482 vms_debug (2, "slurp type %d failed with %d\n", prev_type, err);
483 #endif
484 bfd_set_error (bfd_error_wrong_format);
485 return 0;
488 while ((prev_type != EOBJ_S_C_EEOM) && (prev_type != OBJ_S_C_EOM) && (prev_type != OBJ_S_C_EOMW));
490 if (target_vector == &vms_vax_vec)
492 if (vms_fixup_sections (abfd) == false)
494 #if VMS_DEBUG
495 vms_debug (2, "vms_fixup_sections failed\n");
496 #endif
497 bfd_set_error (bfd_error_wrong_format);
498 return 0;
501 /* set arch_info to vax */
503 arch = bfd_scan_arch ("vax");
504 PRIV (is_vax) = 1;
505 #if VMS_DEBUG
506 vms_debug (2, "arch is vax\n");
507 #endif
509 else if (target_vector == &vms_alpha_vec)
511 /* set arch_info to alpha */
513 arch = bfd_scan_arch ("alpha");
514 PRIV (is_vax) = 0;
515 #if VMS_DEBUG
516 vms_debug (2, "arch is alpha\n");
517 #endif
520 if (arch == 0)
522 #if VMS_DEBUG
523 vms_debug (2, "arch not found\n");
524 #endif
525 bfd_set_error (bfd_error_wrong_format);
526 return 0;
528 abfd->arch_info = arch;
530 return target_vector;
533 /* Check the format for a file being read.
534 Return a (bfd_target *) if it's an archive file or zero. */
536 static const struct bfd_target *
537 vms_archive_p (abfd)
538 bfd *abfd ATTRIBUTE_UNUSED;
540 #if VMS_DEBUG
541 vms_debug (1, "vms_archive_p(%p)\n", abfd);
542 #endif
544 return 0;
547 /* Set the format of a file being written. */
549 static boolean
550 vms_mkobject (abfd)
551 bfd *abfd;
553 #if VMS_DEBUG
554 vms_debug (1, "vms_mkobject(%p)\n", abfd);
555 #endif
557 if (!vms_initialize (abfd))
559 fprintf (stderr, "vms_initialize () failed !!\n");
560 return 0;
564 #ifdef __VAX
565 const bfd_arch_info_type *arch = bfd_scan_arch ("vax");
566 #else
567 const bfd_arch_info_type *arch = bfd_scan_arch ("alpha");
568 #endif
569 if (arch == 0)
571 bfd_set_error(bfd_error_wrong_format);
572 return 0;
574 abfd->arch_info = arch;
577 return true;
580 /* Write cached information into a file being written, at bfd_close. */
582 static boolean
583 vms_write_object_contents (abfd)
584 bfd *abfd;
586 #if VMS_DEBUG
587 vms_debug (1, "vms_write_object_contents(%p)\n", abfd);
588 #endif
590 if (abfd->section_count > 0) /* we have sections */
592 if (PRIV(is_vax))
594 if (_bfd_vms_write_hdr (abfd, OBJ_S_C_HDR) != 0)
595 return false;
596 if (_bfd_vms_write_gsd (abfd, OBJ_S_C_GSD) != 0)
597 return false;
598 if (_bfd_vms_write_tir (abfd, OBJ_S_C_TIR) != 0)
599 return false;
600 if (_bfd_vms_write_tbt (abfd, OBJ_S_C_TBT) != 0)
601 return false;
602 if (_bfd_vms_write_dbg (abfd, OBJ_S_C_DBG) != 0)
603 return false;
604 if (abfd->section_count > 255)
606 if (_bfd_vms_write_eom (abfd, OBJ_S_C_EOMW) != 0)
607 return false;
609 else
611 if (_bfd_vms_write_eom (abfd, OBJ_S_C_EOM) != 0)
612 return false;
615 else
617 if (_bfd_vms_write_hdr (abfd, EOBJ_S_C_EMH) != 0)
618 return false;
619 if (_bfd_vms_write_gsd (abfd, EOBJ_S_C_EGSD) != 0)
620 return false;
621 if (_bfd_vms_write_tir (abfd, EOBJ_S_C_ETIR) != 0)
622 return false;
623 if (_bfd_vms_write_tbt (abfd, EOBJ_S_C_ETBT) != 0)
624 return false;
625 if (_bfd_vms_write_dbg (abfd, EOBJ_S_C_EDBG) != 0)
626 return false;
627 if (_bfd_vms_write_eom (abfd, EOBJ_S_C_EEOM) != 0)
628 return false;
631 return true;
634 /*-- 4.1, generic -----------------------------------------------------------*/
636 /* Called when the BFD is being closed to do any necessary cleanup. */
638 static boolean
639 vms_close_and_cleanup (abfd)
640 bfd *abfd;
642 asection *sec;
643 vms_section *es, *es1;
644 int i;
646 #if VMS_DEBUG
647 vms_debug (1, "vms_close_and_cleanup(%p)\n", abfd);
648 #endif
649 if (abfd == 0)
650 return true;
652 if (PRIV(vms_buf) != NULL)
654 free (PRIV(vms_buf));
655 PRIV(vms_buf) = NULL;
657 PRIV(buf_size) = 0;
659 if (PRIV(output_buf) != 0)
661 free (PRIV(output_buf));
662 PRIV(output_buf) = 0;
665 sec = abfd->sections;
666 while (sec != NULL)
668 if (sec->contents)
669 free (sec->contents);
670 sec = sec->next;
673 if (PRIV(sections) != NULL)
675 free (PRIV(sections));
676 PRIV(sections) = NULL;
679 if (PRIV(vms_symbol_table))
681 bfd_hash_table_free (PRIV(vms_symbol_table));
682 PRIV(vms_symbol_table) = 0;
685 if (PRIV(stack))
687 free (PRIV(stack));
688 PRIV(stack) = 0;
691 if (PRIV(location_stack))
693 free (PRIV(location_stack));
694 PRIV(location_stack) = 0;
697 for (i = 0; i < VMS_SECTION_COUNT; i++)
699 es = PRIV(vms_section_table)[i];
700 while (es != NULL)
702 es1 = es->next;
703 free (es);
704 es = es1;
706 PRIV(vms_section_table)[i] = NULL;
709 free (abfd->tdata.any);
710 abfd->tdata.any = NULL;
712 return true;
715 /* Ask the BFD to free all cached information. */
716 static boolean
717 vms_bfd_free_cached_info (abfd)
718 bfd *abfd ATTRIBUTE_UNUSED;
720 #if VMS_DEBUG
721 vms_debug (1, "vms_bfd_free_cached_info(%p)\n", abfd);
722 #endif
723 return true;
726 /* Called when a new section is created. */
728 static boolean
729 vms_new_section_hook (abfd, section)
730 bfd *abfd;
731 asection *section;
733 #if VMS_DEBUG
734 vms_debug (1, "vms_new_section_hook (%p, [%d]%s), count %d\n", abfd, section->index, section->name, abfd->section_count);
735 #endif
736 bfd_set_section_alignment(abfd, section, 4);
738 if (abfd->section_count > PRIV(section_count))
740 PRIV(sections) = ((asection **)
741 bfd_realloc (PRIV(sections), abfd->section_count * sizeof (asection *)));
742 if (PRIV(sections) == 0)
743 return false;
744 PRIV(section_count) = abfd->section_count;
746 #if VMS_DEBUG
747 vms_debug (6, "section_count: %d\n", PRIV(section_count));
748 #endif
749 PRIV(sections)[section->index] = section;
750 #if VMS_DEBUG
751 vms_debug (7, "%d: %s\n", section->index, section->name);
752 #endif
754 return true;
757 /* Read the contents of a section.
758 buf points to a buffer of buf_size bytes to be filled with
759 section data (starting at offset into section) */
761 static boolean
762 vms_get_section_contents (abfd, section, buf, offset, buf_size)
763 bfd *abfd ATTRIBUTE_UNUSED;
764 asection *section ATTRIBUTE_UNUSED;
765 PTR buf ATTRIBUTE_UNUSED;
766 file_ptr offset ATTRIBUTE_UNUSED;
767 bfd_size_type buf_size ATTRIBUTE_UNUSED;
769 #if VMS_DEBUG
770 vms_debug (1, "vms_get_section_contents(%p, %s, %p, off %ld, size %d)\n",
771 abfd, section->name, buf, offset, (int)buf_size);
772 #endif
774 /* shouldn't be called, since all sections are IN_MEMORY */
776 return false;
779 /* Read the contents of a section.
780 buf points to a buffer of buf_size bytes to be filled with
781 section data (starting at offset into section) */
783 static boolean
784 vms_get_section_contents_in_window (abfd, section, w, offset, count)
785 bfd *abfd ATTRIBUTE_UNUSED;
786 asection *section ATTRIBUTE_UNUSED;
787 bfd_window *w ATTRIBUTE_UNUSED;
788 file_ptr offset ATTRIBUTE_UNUSED;
789 bfd_size_type count ATTRIBUTE_UNUSED;
791 #if VMS_DEBUG
792 vms_debug (1, "vms_get_section_contents_in_window(%p, %s, %p, off %ld, count %d)\n",
793 abfd, section->name, w, offset, (int)count);
794 #endif
796 /* shouldn't be called, since all sections are IN_MEMORY */
798 return false;
801 /*-- Part 4.2, copy private data --------------------------------------------*/
803 /* Called to copy BFD general private data from one object file
804 to another. */
806 static boolean
807 vms_bfd_copy_private_bfd_data (src, dest)
808 bfd *src ATTRIBUTE_UNUSED;
809 bfd *dest ATTRIBUTE_UNUSED;
811 #if VMS_DEBUG
812 vms_debug (1, "vms_bfd_copy_private_bfd_data(%p, %p)\n", src, dest);
813 #endif
814 return true;
817 /* Merge private BFD information from the BFD @var{ibfd} to the
818 the output file BFD @var{obfd} when linking. Return <<true>>
819 on success, <<false>> on error. Possible error returns are:
821 o <<bfd_error_no_memory>> -
822 Not enough memory exists to create private data for @var{obfd}. */
824 static boolean
825 vms_bfd_merge_private_bfd_data (ibfd, obfd)
826 bfd *ibfd ATTRIBUTE_UNUSED;
827 bfd *obfd ATTRIBUTE_UNUSED;
829 #if VMS_DEBUG
830 vms_debug (1,"vms_bfd_merge_private_bfd_data(%p, %p)\n", ibfd, obfd);
831 #endif
832 return true;
835 /* Set private BFD flag information in the BFD @var{abfd}.
836 Return <<true>> on success, <<false>> on error. Possible error
837 returns are:
839 o <<bfd_error_no_memory>> -
840 Not enough memory exists to create private data for @var{obfd}. */
842 static boolean
843 vms_bfd_set_private_flags (abfd, flags)
844 bfd *abfd ATTRIBUTE_UNUSED;
845 flagword flags ATTRIBUTE_UNUSED;
847 #if VMS_DEBUG
848 vms_debug (1,"vms_bfd_set_private_flags(%p, %lx)\n", abfd, (long)flags);
849 #endif
850 return true;
853 /* Called to copy BFD private section data from one object file
854 to another. */
856 static boolean
857 vms_bfd_copy_private_section_data (srcbfd, srcsec, dstbfd, dstsec)
858 bfd *srcbfd ATTRIBUTE_UNUSED;
859 asection *srcsec ATTRIBUTE_UNUSED;
860 bfd *dstbfd ATTRIBUTE_UNUSED;
861 asection *dstsec ATTRIBUTE_UNUSED;
863 #if VMS_DEBUG
864 vms_debug (1, "vms_bfd_copy_private_section_data(%p, %s, %p, %s)\n",
865 srcbfd, srcsec->name, dstbfd, dstsec->name);
866 #endif
867 return true;
870 /* Called to copy BFD private symbol data from one object file
871 to another. */
873 static boolean
874 vms_bfd_copy_private_symbol_data (ibfd, isym, obfd, osym)
875 bfd *ibfd ATTRIBUTE_UNUSED;
876 asymbol *isym ATTRIBUTE_UNUSED;
877 bfd *obfd ATTRIBUTE_UNUSED;
878 asymbol *osym ATTRIBUTE_UNUSED;
880 #if VMS_DEBUG
881 vms_debug (1, "vms_bfd_copy_private_symbol_data(%p, %s, %p, %s)\n",
882 ibfd, isym->name, obfd, osym->name);
883 #endif
884 return true;
887 /*-- Part 4.3, core file ----------------------------------------------------*/
889 /* Return a read-only string explaining which program was running
890 when it failed and produced the core file abfd. */
892 static char *
893 vms_core_file_failing_command (abfd)
894 bfd *abfd ATTRIBUTE_UNUSED;
896 #if VMS_DEBUG
897 vms_debug (1, "vms_core_file_failing_command(%p)\n", abfd);
898 #endif
899 return 0;
902 /* Returns the signal number which caused the core dump which
903 generated the file the BFD abfd is attached to. */
905 static int
906 vms_core_file_failing_signal (abfd)
907 bfd *abfd ATTRIBUTE_UNUSED;
909 #if VMS_DEBUG
910 vms_debug (1, "vms_core_file_failing_signal(%p)\n", abfd);
911 #endif
912 return 0;
915 /* Return true if the core file attached to core_bfd was generated
916 by a run of the executable file attached to exec_bfd, false otherwise. */
918 static boolean
919 vms_core_file_matches_executable_p (abfd, bbfd)
920 bfd *abfd ATTRIBUTE_UNUSED;
921 bfd *bbfd ATTRIBUTE_UNUSED;
923 #if VMS_DEBUG
924 vms_debug (1, "vms_core_file_matches_executable_p(%p, %p)\n", abfd, bbfd);
925 #endif
926 return false;
929 /*-- Part 4.4, archive ------------------------------------------------------*/
931 /* ??? do something with an archive map.
932 Return false on error, true otherwise. */
934 static boolean
935 vms_slurp_armap (abfd)
936 bfd *abfd ATTRIBUTE_UNUSED;
938 #if VMS_DEBUG
939 vms_debug (1, "vms_slurp_armap(%p)\n", abfd);
940 #endif
941 return false;
944 /* ??? do something with an extended name table.
945 Return false on error, true otherwise. */
947 static boolean
948 vms_slurp_extended_name_table (abfd)
949 bfd *abfd ATTRIBUTE_UNUSED;
951 #if VMS_DEBUG
952 vms_debug (1, "vms_slurp_extended_name_table(%p)\n", abfd);
953 #endif
954 return false;
957 /* ??? do something with an extended name table.
958 Return false on error, true otherwise. */
960 static boolean
961 vms_construct_extended_name_table (abfd, tabloc, tablen, name)
962 bfd *abfd ATTRIBUTE_UNUSED;
963 char **tabloc ATTRIBUTE_UNUSED;
964 bfd_size_type *tablen ATTRIBUTE_UNUSED;
965 const char **name ATTRIBUTE_UNUSED;
967 #if VMS_DEBUG
968 vms_debug (1, "vms_construct_extended_name_table(%p)\n", abfd);
969 #endif
970 return false;
973 /* Truncate the name of an archive to match system-dependent restrictions */
975 static void
976 vms_truncate_arname (abfd, pathname, arhdr)
977 bfd *abfd ATTRIBUTE_UNUSED;
978 CONST char *pathname ATTRIBUTE_UNUSED;
979 char *arhdr ATTRIBUTE_UNUSED;
981 #if VMS_DEBUG
982 vms_debug (1, "vms_truncate_arname(%p, %s, %s)\n", abfd, pathname, arhdr);
983 #endif
984 return;
987 /* ??? write archive map */
989 static boolean
990 vms_write_armap (arch, elength, map, orl_count, stridx)
991 bfd *arch ATTRIBUTE_UNUSED;
992 unsigned int elength ATTRIBUTE_UNUSED;
993 struct orl *map ATTRIBUTE_UNUSED;
994 unsigned int orl_count ATTRIBUTE_UNUSED;
995 int stridx ATTRIBUTE_UNUSED;
997 #if VMS_DEBUG
998 vms_debug (1, "vms_write_armap(%p, %d, %p, %d %d)\n",
999 arch, elength, map, orl_count, stridx);
1000 #endif
1001 return true;
1004 /* Read archive header ??? */
1006 static PTR
1007 vms_read_ar_hdr (abfd)
1008 bfd * abfd ATTRIBUTE_UNUSED;
1010 #if VMS_DEBUG
1011 vms_debug (1, "vms_read_ar_hdr(%p)\n", abfd);
1012 #endif
1013 return (PTR)0;
1016 /* Provided a BFD, @var{archive}, containing an archive and NULL, open
1017 an input BFD on the first contained element and returns that.
1018 Subsequent calls should pass the archive and the previous return value
1019 to return a created BFD to the next contained element.
1020 NULL is returned when there are no more. */
1022 static bfd *
1023 vms_openr_next_archived_file (arch, prev)
1024 bfd *arch ATTRIBUTE_UNUSED;
1025 bfd *prev ATTRIBUTE_UNUSED;
1027 #if VMS_DEBUG
1028 vms_debug (1, "vms_openr_next_archived_file(%p, %p)\n", arch, prev);
1029 #endif
1030 return NULL;
1033 /* Return the BFD which is referenced by the symbol in ABFD indexed by
1034 INDEX. INDEX should have been returned by bfd_get_next_mapent. */
1036 static bfd *
1037 vms_get_elt_at_index (abfd, index)
1038 bfd *abfd;
1039 symindex index;
1041 #if VMS_DEBUG
1042 vms_debug (1, "vms_get_elt_at_index(%p, %p)\n", abfd, index);
1043 #endif
1044 return _bfd_generic_get_elt_at_index(abfd, index);
1047 /* ???
1048 -> bfd_generic_stat_arch_elt */
1050 static int
1051 vms_generic_stat_arch_elt (abfd, stat)
1052 bfd *abfd;
1053 struct stat *stat;
1055 #if VMS_DEBUG
1056 vms_debug (1, "vms_generic_stat_arch_elt(%p, %p)\n", abfd, stat);
1057 #endif
1058 return bfd_generic_stat_arch_elt(abfd, stat);
1061 /* This is a new function in bfd 2.5 */
1063 static boolean
1064 vms_update_armap_timestamp (abfd)
1065 bfd *abfd ATTRIBUTE_UNUSED;
1067 #if VMS_DEBUG
1068 vms_debug (1, "vms_update_armap_timestamp(%p)\n", abfd);
1069 #endif
1070 return true;
1073 /*-- Part 4.5, symbols --------------------------------------------------------*/
1075 /* Return the number of bytes required to store a vector of pointers
1076 to asymbols for all the symbols in the BFD abfd, including a
1077 terminal NULL pointer. If there are no symbols in the BFD,
1078 then return 0. If an error occurs, return -1. */
1080 static long
1081 vms_get_symtab_upper_bound (abfd)
1082 bfd *abfd;
1084 #if VMS_DEBUG
1085 vms_debug (1, "vms_get_symtab_upper_bound(%p), %d symbols\n", abfd, PRIV(gsd_sym_count));
1086 #endif
1087 return (PRIV(gsd_sym_count)+1) * sizeof (asymbol *);
1090 /* Copy symbols from hash table to symbol vector
1092 called from bfd_hash_traverse in vms_get_symtab
1093 init counter to 0 if entry == 0 */
1095 static boolean
1096 copy_symbols (entry, arg)
1097 struct bfd_hash_entry *entry;
1098 PTR arg;
1100 bfd *abfd = (bfd *) arg;
1102 if (entry == NULL) /* init counter */
1103 PRIV(symnum) = 0;
1104 else /* fill vector, inc counter */
1105 PRIV(symcache)[PRIV(symnum)++] = ((vms_symbol_entry *)entry)->symbol;
1107 return true;
1110 /* Read the symbols from the BFD abfd, and fills in the vector
1111 location with pointers to the symbols and a trailing NULL.
1113 return # of symbols read */
1115 static long
1116 vms_get_symtab (abfd, symbols)
1117 bfd *abfd;
1118 asymbol **symbols;
1120 #if VMS_DEBUG
1121 vms_debug (1, "vms_get_symtab(%p, <ret>)\n", abfd);
1122 #endif
1124 /* init counter */
1125 (void)copy_symbols((struct bfd_hash_entry *)0, abfd);
1127 /* traverse table and fill symbols vector */
1129 PRIV(symcache) = symbols;
1130 bfd_hash_traverse(PRIV(vms_symbol_table), copy_symbols, (PTR)abfd);
1132 symbols[PRIV(gsd_sym_count)] = NULL;
1134 return PRIV(gsd_sym_count);
1137 /* Create a new asymbol structure for the BFD abfd and return a pointer
1138 to it.
1139 This routine is necessary because each back end has private information
1140 surrounding the asymbol. Building your own asymbol and pointing to it
1141 will not create the private information, and will cause problems later on. */
1143 asymbol *
1144 _bfd_vms_make_empty_symbol (abfd)
1145 bfd *abfd;
1147 asymbol *symbol = (asymbol *)bfd_zalloc(abfd, sizeof (asymbol));
1149 #if VMS_DEBUG
1150 vms_debug (1, "_bfd_vms_make_empty_symbol(%p)\n", abfd);
1151 #endif
1153 if (symbol == 0)
1155 bfd_set_error (bfd_error_no_memory);
1156 return 0;
1158 symbol->the_bfd = abfd;
1160 return symbol;
1163 /* Print symbol to file according to how. how is one of
1164 bfd_print_symbol_name just print the name
1165 bfd_print_symbol_more print more (???)
1166 bfd_print_symbol_all print all we know, which is not much right now :-) */
1168 static void
1169 vms_print_symbol (abfd, file, symbol, how)
1170 bfd *abfd ATTRIBUTE_UNUSED;
1171 PTR file;
1172 asymbol *symbol;
1173 bfd_print_symbol_type how;
1175 #if VMS_DEBUG
1176 vms_debug (1, "vms_print_symbol(%p, %p, %p, %d)\n", abfd, file, symbol, how);
1177 #endif
1179 switch (how)
1181 case bfd_print_symbol_name:
1182 case bfd_print_symbol_more:
1183 fprintf ((FILE *)file," %s", symbol->name);
1184 break;
1186 break;
1188 case bfd_print_symbol_all:
1190 CONST char *section_name = symbol->section->name;
1192 bfd_print_symbol_vandf((PTR)file,symbol);
1194 fprintf ((FILE *)file," %-8s %s", section_name, symbol->name);
1196 break;
1198 return;
1201 /* Return information about symbol in ret.
1203 fill type, value and name
1204 type:
1205 A absolute
1206 B bss segment symbol
1207 C common symbol
1208 D data segment symbol
1209 f filename
1210 t a static function symbol
1211 T text segment symbol
1212 U undefined
1213 - debug */
1215 static void
1216 vms_get_symbol_info (abfd, symbol, ret)
1217 bfd *abfd ATTRIBUTE_UNUSED;
1218 asymbol *symbol;
1219 symbol_info *ret;
1221 asection *sec;
1223 #if VMS_DEBUG
1224 vms_debug (1, "vms_get_symbol_info(%p, %p, %p)\n", abfd, symbol, ret);
1225 #endif
1227 sec = symbol->section;
1229 if (ret == 0)
1230 return;
1232 if (bfd_is_com_section (sec))
1233 ret->type = 'C';
1234 else if (bfd_is_abs_section (sec))
1235 ret->type = 'A';
1236 else if (bfd_is_und_section (sec))
1237 ret->type = 'U';
1238 else if (bfd_is_ind_section (sec))
1239 ret->type = 'I';
1240 else if (bfd_get_section_flags (abfd, sec) & SEC_CODE)
1241 ret->type = 'T';
1242 else if (bfd_get_section_flags (abfd, sec) & SEC_DATA)
1243 ret->type = 'D';
1244 else if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
1245 ret->type = 'B';
1246 else
1247 ret->type = '-';
1249 if (ret->type != 'U')
1250 ret->value = symbol->value + symbol->section->vma;
1251 else
1252 ret->value = 0;
1253 ret->name = symbol->name;
1255 return;
1258 /* Return true if the given symbol sym in the BFD abfd is
1259 a compiler generated local label, else return false. */
1261 static boolean
1262 vms_bfd_is_local_label_name (abfd, name)
1263 bfd *abfd ATTRIBUTE_UNUSED;
1264 const char *name;
1266 #if VMS_DEBUG
1267 vms_debug (1, "vms_bfd_is_local_label_name(%p, %s)\n", abfd, name);
1268 #endif
1269 return name[0] == '$';
1272 /* Get source line number for symbol */
1274 static alent *
1275 vms_get_lineno (abfd, symbol)
1276 bfd *abfd ATTRIBUTE_UNUSED;
1277 asymbol *symbol ATTRIBUTE_UNUSED;
1279 #if VMS_DEBUG
1280 vms_debug (1, "vms_get_lineno(%p, %p)\n", abfd, symbol);
1281 #endif
1282 return 0;
1285 /* Provided a BFD, a section and an offset into the section, calculate and
1286 return the name of the source file and the line nearest to the wanted
1287 location. */
1289 static boolean
1290 vms_find_nearest_line (abfd, section, symbols, offset, file, func, line)
1291 bfd *abfd ATTRIBUTE_UNUSED;
1292 asection *section ATTRIBUTE_UNUSED;
1293 asymbol **symbols ATTRIBUTE_UNUSED;
1294 bfd_vma offset ATTRIBUTE_UNUSED;
1295 CONST char **file ATTRIBUTE_UNUSED;
1296 CONST char **func ATTRIBUTE_UNUSED;
1297 unsigned int *line ATTRIBUTE_UNUSED;
1299 #if VMS_DEBUG
1300 vms_debug (1, "vms_find_nearest_line(%p, %s, %p, %ld, <ret>, <ret>, <ret>)\n",
1301 abfd, section->name, symbols, (long int)offset);
1302 #endif
1303 return false;
1306 /* Back-door to allow format-aware applications to create debug symbols
1307 while using BFD for everything else. Currently used by the assembler
1308 when creating COFF files. */
1310 static asymbol *
1311 vms_bfd_make_debug_symbol (abfd, ptr, size)
1312 bfd *abfd ATTRIBUTE_UNUSED;
1313 void *ptr ATTRIBUTE_UNUSED;
1314 unsigned long size ATTRIBUTE_UNUSED;
1316 #if VMS_DEBUG
1317 vms_debug (1, "vms_bfd_make_debug_symbol(%p, %p, %ld)\n", abfd, ptr, size);
1318 #endif
1319 return 0;
1322 /* Read minisymbols. For minisymbols, we use the unmodified a.out
1323 symbols. The minisymbol_to_symbol function translates these into
1324 BFD asymbol structures. */
1326 static long
1327 vms_read_minisymbols (abfd, dynamic, minisymsp, sizep)
1328 bfd *abfd;
1329 boolean dynamic;
1330 PTR *minisymsp;
1331 unsigned int *sizep;
1333 #if VMS_DEBUG
1334 vms_debug (1, "vms_read_minisymbols(%p, %d, %p, %d)\n", abfd, dynamic, minisymsp, *sizep);
1335 #endif
1336 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
1339 /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
1340 unmodified a.out symbol. The SYM argument is a structure returned
1341 by bfd_make_empty_symbol, which we fill in here. */
1343 static asymbol *
1344 vms_minisymbol_to_symbol (abfd, dynamic, minisym, sym)
1345 bfd *abfd;
1346 boolean dynamic;
1347 const PTR minisym;
1348 asymbol *sym;
1350 #if VMS_DEBUG
1351 vms_debug (1, "vms_minisymbol_to_symbol(%p, %d, %p, %p)\n", abfd, dynamic, minisym, sym);
1352 #endif
1353 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
1356 /*-- Part 4.6, relocations --------------------------------------------------*/
1358 /* Return the number of bytes required to store the relocation information
1359 associated with section sect attached to bfd abfd.
1360 If an error occurs, return -1. */
1362 static long
1363 vms_get_reloc_upper_bound (abfd, section)
1364 bfd *abfd ATTRIBUTE_UNUSED;
1365 asection *section ATTRIBUTE_UNUSED;
1367 #if VMS_DEBUG
1368 vms_debug (1, "vms_get_reloc_upper_bound(%p, %s)\n", abfd, section->name);
1369 #endif
1370 return -1L;
1373 /* Call the back end associated with the open BFD abfd and translate the
1374 external form of the relocation information attached to sec into the
1375 internal canonical form. Place the table into memory at loc, which has
1376 been preallocated, usually by a call to bfd_get_reloc_upper_bound.
1377 Returns the number of relocs, or -1 on error. */
1379 static long
1380 vms_canonicalize_reloc (abfd, section, location, symbols)
1381 bfd *abfd ATTRIBUTE_UNUSED;
1382 asection *section ATTRIBUTE_UNUSED;
1383 arelent **location ATTRIBUTE_UNUSED;
1384 asymbol **symbols ATTRIBUTE_UNUSED;
1386 #if VMS_DEBUG
1387 vms_debug (1, "vms_canonicalize_reloc(%p, %s, <ret>, <ret>)\n", abfd, section->name);
1388 #endif
1389 return false;
1392 /*---------------------------------------------------------------------------*/
1393 /* this is just copied from ecoff-alpha, needs to be fixed probably */
1395 /* How to process the various reloc types. */
1397 static bfd_reloc_status_type
1398 reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message)
1399 bfd *abfd ATTRIBUTE_UNUSED;
1400 arelent *reloc ATTRIBUTE_UNUSED;
1401 asymbol *sym ATTRIBUTE_UNUSED;
1402 PTR data ATTRIBUTE_UNUSED;
1403 asection *sec ATTRIBUTE_UNUSED;
1404 bfd *output_bfd ATTRIBUTE_UNUSED;
1405 char **error_message ATTRIBUTE_UNUSED;
1407 #if VMS_DEBUG
1408 vms_debug (1, "reloc_nil(abfd %p, output_bfd %p)\n", abfd, output_bfd);
1409 vms_debug (2, "In section %s, symbol %s\n",
1410 sec->name, sym->name);
1411 vms_debug (2, "reloc sym %s, addr %08lx, addend %08lx, reloc is a %s\n",
1412 reloc->sym_ptr_ptr[0]->name,
1413 (unsigned long)reloc->address,
1414 (unsigned long)reloc->addend, reloc->howto->name);
1415 vms_debug (2, "data at %p\n", data);
1416 /* _bfd_hexdump (2, data, bfd_get_reloc_size(reloc->howto),0); */
1417 #endif
1419 return bfd_reloc_ok;
1422 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
1423 from smaller values. Start with zero, widen, *then* decrement. */
1424 #define MINUS_ONE (((bfd_vma)0) - 1)
1426 static reloc_howto_type alpha_howto_table[] =
1428 HOWTO (ALPHA_R_IGNORE, /* type */
1429 0, /* rightshift */
1430 0, /* size (0 = byte, 1 = short, 2 = long) */
1431 8, /* bitsize */
1432 true, /* pc_relative */
1433 0, /* bitpos */
1434 complain_overflow_dont, /* complain_on_overflow */
1435 reloc_nil, /* special_function */
1436 "IGNORE", /* name */
1437 true, /* partial_inplace */
1438 0, /* src_mask */
1439 0, /* dst_mask */
1440 true), /* pcrel_offset */
1442 /* A 64 bit reference to a symbol. */
1443 HOWTO (ALPHA_R_REFQUAD, /* type */
1444 0, /* rightshift */
1445 4, /* size (0 = byte, 1 = short, 2 = long) */
1446 64, /* bitsize */
1447 false, /* pc_relative */
1448 0, /* bitpos */
1449 complain_overflow_bitfield, /* complain_on_overflow */
1450 reloc_nil, /* special_function */
1451 "REFQUAD", /* name */
1452 true, /* partial_inplace */
1453 MINUS_ONE, /* src_mask */
1454 MINUS_ONE, /* dst_mask */
1455 false), /* pcrel_offset */
1457 /* A 21 bit branch. The native assembler generates these for
1458 branches within the text segment, and also fills in the PC
1459 relative offset in the instruction. */
1460 HOWTO (ALPHA_R_BRADDR, /* type */
1461 2, /* rightshift */
1462 2, /* size (0 = byte, 1 = short, 2 = long) */
1463 21, /* bitsize */
1464 true, /* pc_relative */
1465 0, /* bitpos */
1466 complain_overflow_signed, /* complain_on_overflow */
1467 reloc_nil, /* special_function */
1468 "BRADDR", /* name */
1469 true, /* partial_inplace */
1470 0x1fffff, /* src_mask */
1471 0x1fffff, /* dst_mask */
1472 false), /* pcrel_offset */
1474 /* A hint for a jump to a register. */
1475 HOWTO (ALPHA_R_HINT, /* type */
1476 2, /* rightshift */
1477 1, /* size (0 = byte, 1 = short, 2 = long) */
1478 14, /* bitsize */
1479 true, /* pc_relative */
1480 0, /* bitpos */
1481 complain_overflow_dont, /* complain_on_overflow */
1482 reloc_nil, /* special_function */
1483 "HINT", /* name */
1484 true, /* partial_inplace */
1485 0x3fff, /* src_mask */
1486 0x3fff, /* dst_mask */
1487 false), /* pcrel_offset */
1489 /* 16 bit PC relative offset. */
1490 HOWTO (ALPHA_R_SREL16, /* type */
1491 0, /* rightshift */
1492 1, /* size (0 = byte, 1 = short, 2 = long) */
1493 16, /* bitsize */
1494 true, /* pc_relative */
1495 0, /* bitpos */
1496 complain_overflow_signed, /* complain_on_overflow */
1497 reloc_nil, /* special_function */
1498 "SREL16", /* name */
1499 true, /* partial_inplace */
1500 0xffff, /* src_mask */
1501 0xffff, /* dst_mask */
1502 false), /* pcrel_offset */
1504 /* 32 bit PC relative offset. */
1505 HOWTO (ALPHA_R_SREL32, /* type */
1506 0, /* rightshift */
1507 2, /* size (0 = byte, 1 = short, 2 = long) */
1508 32, /* bitsize */
1509 true, /* pc_relative */
1510 0, /* bitpos */
1511 complain_overflow_signed, /* complain_on_overflow */
1512 reloc_nil, /* special_function */
1513 "SREL32", /* name */
1514 true, /* partial_inplace */
1515 0xffffffff, /* src_mask */
1516 0xffffffff, /* dst_mask */
1517 false), /* pcrel_offset */
1519 /* A 64 bit PC relative offset. */
1520 HOWTO (ALPHA_R_SREL64, /* type */
1521 0, /* rightshift */
1522 4, /* size (0 = byte, 1 = short, 2 = long) */
1523 64, /* bitsize */
1524 true, /* pc_relative */
1525 0, /* bitpos */
1526 complain_overflow_signed, /* complain_on_overflow */
1527 reloc_nil, /* special_function */
1528 "SREL64", /* name */
1529 true, /* partial_inplace */
1530 MINUS_ONE, /* src_mask */
1531 MINUS_ONE, /* dst_mask */
1532 false), /* pcrel_offset */
1534 /* Push a value on the reloc evaluation stack. */
1535 HOWTO (ALPHA_R_OP_PUSH, /* type */
1536 0, /* rightshift */
1537 0, /* size (0 = byte, 1 = short, 2 = long) */
1538 0, /* bitsize */
1539 false, /* pc_relative */
1540 0, /* bitpos */
1541 complain_overflow_dont, /* complain_on_overflow */
1542 reloc_nil, /* special_function */
1543 "OP_PUSH", /* name */
1544 false, /* partial_inplace */
1545 0, /* src_mask */
1546 0, /* dst_mask */
1547 false), /* pcrel_offset */
1549 /* Store the value from the stack at the given address. Store it in
1550 a bitfield of size r_size starting at bit position r_offset. */
1551 HOWTO (ALPHA_R_OP_STORE, /* type */
1552 0, /* rightshift */
1553 4, /* size (0 = byte, 1 = short, 2 = long) */
1554 64, /* bitsize */
1555 false, /* pc_relative */
1556 0, /* bitpos */
1557 complain_overflow_dont, /* complain_on_overflow */
1558 reloc_nil, /* special_function */
1559 "OP_STORE", /* name */
1560 false, /* partial_inplace */
1561 0, /* src_mask */
1562 MINUS_ONE, /* dst_mask */
1563 false), /* pcrel_offset */
1565 /* Subtract the reloc address from the value on the top of the
1566 relocation stack. */
1567 HOWTO (ALPHA_R_OP_PSUB, /* type */
1568 0, /* rightshift */
1569 0, /* size (0 = byte, 1 = short, 2 = long) */
1570 0, /* bitsize */
1571 false, /* pc_relative */
1572 0, /* bitpos */
1573 complain_overflow_dont, /* complain_on_overflow */
1574 reloc_nil, /* special_function */
1575 "OP_PSUB", /* name */
1576 false, /* partial_inplace */
1577 0, /* src_mask */
1578 0, /* dst_mask */
1579 false), /* pcrel_offset */
1581 /* Shift the value on the top of the relocation stack right by the
1582 given value. */
1583 HOWTO (ALPHA_R_OP_PRSHIFT, /* type */
1584 0, /* rightshift */
1585 0, /* size (0 = byte, 1 = short, 2 = long) */
1586 0, /* bitsize */
1587 false, /* pc_relative */
1588 0, /* bitpos */
1589 complain_overflow_dont, /* complain_on_overflow */
1590 reloc_nil, /* special_function */
1591 "OP_PRSHIFT", /* name */
1592 false, /* partial_inplace */
1593 0, /* src_mask */
1594 0, /* dst_mask */
1595 false), /* pcrel_offset */
1597 /* Hack. Linkage is done by linker. */
1598 HOWTO (ALPHA_R_LINKAGE, /* type */
1599 0, /* rightshift */
1600 8, /* size (0 = byte, 1 = short, 2 = long) */
1601 256, /* bitsize */
1602 false, /* pc_relative */
1603 0, /* bitpos */
1604 complain_overflow_dont, /* complain_on_overflow */
1605 reloc_nil, /* special_function */
1606 "LINKAGE", /* name */
1607 false, /* partial_inplace */
1608 0, /* src_mask */
1609 0, /* dst_mask */
1610 false), /* pcrel_offset */
1612 /* A 32 bit reference to a symbol. */
1613 HOWTO (ALPHA_R_REFLONG, /* type */
1614 0, /* rightshift */
1615 2, /* size (0 = byte, 1 = short, 2 = long) */
1616 32, /* bitsize */
1617 false, /* pc_relative */
1618 0, /* bitpos */
1619 complain_overflow_bitfield, /* complain_on_overflow */
1620 reloc_nil, /* special_function */
1621 "REFLONG", /* name */
1622 true, /* partial_inplace */
1623 0xffffffff, /* src_mask */
1624 0xffffffff, /* dst_mask */
1625 false), /* pcrel_offset */
1627 /* A 64 bit reference to a procedure, written as 32 bit value. */
1628 HOWTO (ALPHA_R_CODEADDR, /* type */
1629 0, /* rightshift */
1630 4, /* size (0 = byte, 1 = short, 2 = long) */
1631 64, /* bitsize */
1632 false, /* pc_relative */
1633 0, /* bitpos */
1634 complain_overflow_signed,/* complain_on_overflow */
1635 reloc_nil, /* special_function */
1636 "CODEADDR", /* name */
1637 false, /* partial_inplace */
1638 0xffffffff, /* src_mask */
1639 0xffffffff, /* dst_mask */
1640 false), /* pcrel_offset */
1644 /* Return a pointer to a howto structure which, when invoked, will perform
1645 the relocation code on data from the architecture noted. */
1647 static const struct reloc_howto_struct *
1648 vms_bfd_reloc_type_lookup (abfd, code)
1649 bfd *abfd ATTRIBUTE_UNUSED;
1650 bfd_reloc_code_real_type code;
1652 int alpha_type;
1654 #if VMS_DEBUG
1655 vms_debug (1, "vms_bfd_reloc_type_lookup(%p, %d)\t", abfd, code);
1656 #endif
1658 switch (code)
1660 case BFD_RELOC_16: alpha_type = ALPHA_R_SREL16; break;
1661 case BFD_RELOC_32: alpha_type = ALPHA_R_REFLONG; break;
1662 case BFD_RELOC_64: alpha_type = ALPHA_R_REFQUAD; break;
1663 case BFD_RELOC_CTOR: alpha_type = ALPHA_R_REFQUAD; break;
1664 case BFD_RELOC_23_PCREL_S2: alpha_type = ALPHA_R_BRADDR; break;
1665 case BFD_RELOC_ALPHA_HINT: alpha_type = ALPHA_R_HINT; break;
1666 case BFD_RELOC_16_PCREL: alpha_type = ALPHA_R_SREL16; break;
1667 case BFD_RELOC_32_PCREL: alpha_type = ALPHA_R_SREL32; break;
1668 case BFD_RELOC_64_PCREL: alpha_type = ALPHA_R_SREL64; break;
1669 case BFD_RELOC_ALPHA_LINKAGE: alpha_type = ALPHA_R_LINKAGE; break;
1670 case BFD_RELOC_ALPHA_CODEADDR: alpha_type = ALPHA_R_CODEADDR; break;
1671 default:
1672 (*_bfd_error_handler) ("reloc (%d) is *UNKNOWN*", code);
1673 return (const struct reloc_howto_struct *) NULL;
1675 #if VMS_DEBUG
1676 vms_debug (2, "reloc is %s\n", alpha_howto_table[alpha_type].name);
1677 #endif
1678 return &alpha_howto_table[alpha_type];
1681 /*-- Part 4.7, writing an object file ---------------------------------------*/
1683 /* Set the architecture and machine type in BFD abfd to arch and mach.
1684 Find the correct pointer to a structure and insert it into the arch_info
1685 pointer. */
1687 static boolean
1688 vms_set_arch_mach (abfd, arch, mach)
1689 bfd *abfd;
1690 enum bfd_architecture arch ATTRIBUTE_UNUSED;
1691 unsigned long mach ATTRIBUTE_UNUSED;
1693 #if VMS_DEBUG
1694 vms_debug (1, "vms_set_arch_mach(%p, %d, %ld)\n", abfd, arch, mach);
1695 #endif
1696 abfd->arch_info = bfd_scan_arch("alpha");
1698 return true;
1701 /* Sets the contents of the section section in BFD abfd to the data starting
1702 in memory at data. The data is written to the output section starting at
1703 offset offset for count bytes.
1705 Normally true is returned, else false. Possible error returns are:
1706 o bfd_error_no_contents - The output section does not have the
1707 SEC_HAS_CONTENTS attribute, so nothing can be written to it.
1708 o and some more too */
1710 static boolean
1711 vms_set_section_contents (abfd, section, location, offset, count)
1712 bfd *abfd;
1713 asection *section;
1714 PTR location;
1715 file_ptr offset;
1716 bfd_size_type count;
1718 #if VMS_DEBUG
1719 vms_debug (1, "vms_set_section_contents(%p, sec %s, loc %p, off %ld, count %d)\n",
1720 abfd, section->name, location, (long int)offset, (int)count);
1721 vms_debug (2, "secraw %d, seccooked %d\n", (int)section->_raw_size, (int)section->_cooked_size);
1722 #endif
1723 return _bfd_save_vms_section(abfd, section, location, offset, count);
1726 /*-- Part 4.8, linker -------------------------------------------------------*/
1728 /* Get the size of the section headers. */
1730 static int
1731 vms_sizeof_headers (abfd, reloc)
1732 bfd *abfd ATTRIBUTE_UNUSED;
1733 boolean reloc ATTRIBUTE_UNUSED;
1735 #if VMS_DEBUG
1736 vms_debug (1, "vms_sizeof_headers(%p, %s)\n", abfd, (reloc)?"True":"False");
1737 #endif
1738 return 0;
1741 /* Provides default handling of relocation effort for back ends
1742 which can't be bothered to do it efficiently. */
1744 static bfd_byte *
1745 vms_bfd_get_relocated_section_contents (abfd, link_info, link_order, data,
1746 relocateable, symbols)
1747 bfd *abfd ATTRIBUTE_UNUSED;
1748 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
1749 struct bfd_link_order *link_order ATTRIBUTE_UNUSED;
1750 bfd_byte *data ATTRIBUTE_UNUSED;
1751 boolean relocateable ATTRIBUTE_UNUSED;
1752 asymbol **symbols ATTRIBUTE_UNUSED;
1754 #if VMS_DEBUG
1755 vms_debug (1, "vms_bfd_get_relocated_section_contents(%p, %p, %p, %p, %s, %p)\n",
1756 abfd, link_info, link_order, data, (relocateable)?"True":"False", symbols);
1757 #endif
1758 return 0;
1761 /* ??? */
1763 static boolean
1764 vms_bfd_relax_section (abfd, section, link_info, again)
1765 bfd *abfd ATTRIBUTE_UNUSED;
1766 asection *section ATTRIBUTE_UNUSED;
1767 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
1768 boolean *again ATTRIBUTE_UNUSED;
1770 #if VMS_DEBUG
1771 vms_debug (1, "vms_bfd_relax_section(%p, %s, %p, <ret>)\n",
1772 abfd, section->name, link_info);
1773 #endif
1774 return true;
1777 static boolean
1778 vms_bfd_gc_sections (abfd, link_info)
1779 bfd *abfd ATTRIBUTE_UNUSED;
1780 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
1782 #if VMS_DEBUG
1783 vms_debug (1, "vms_bfd_gc_sections(%p, %p)\n", abfd, link_info);
1784 #endif
1785 return true;
1788 /* Create a hash table for the linker. Different backends store
1789 different information in this table. */
1791 static struct bfd_link_hash_table *
1792 vms_bfd_link_hash_table_create (abfd)
1793 bfd *abfd ATTRIBUTE_UNUSED;
1795 #if VMS_DEBUG
1796 vms_debug (1, "vms_bfd_link_hash_table_create(%p)\n", abfd);
1797 #endif
1798 return 0;
1801 /* Add symbols from this object file into the hash table. */
1803 static boolean
1804 vms_bfd_link_add_symbols (abfd, link_info)
1805 bfd *abfd ATTRIBUTE_UNUSED;
1806 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
1808 #if VMS_DEBUG
1809 vms_debug (1, "vms_bfd_link_add_symbols(%p, %p)\n", abfd, link_info);
1810 #endif
1811 return false;
1814 /* Do a link based on the link_order structures attached to each
1815 section of the BFD. */
1817 static boolean
1818 vms_bfd_final_link (abfd, link_info)
1819 bfd *abfd ATTRIBUTE_UNUSED;
1820 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
1822 #if VMS_DEBUG
1823 vms_debug (1, "vms_bfd_final_link(%p, %p)\n", abfd, link_info);
1824 #endif
1825 return true;
1828 /* Should this section be split up into smaller pieces during linking. */
1830 static boolean
1831 vms_bfd_link_split_section (abfd, section)
1832 bfd *abfd ATTRIBUTE_UNUSED;
1833 asection *section ATTRIBUTE_UNUSED;
1835 #if VMS_DEBUG
1836 vms_debug (1, "vms_bfd_link_split_section(%p, %s)\n", abfd, section->name);
1837 #endif
1838 return false;
1841 /*-- Part 4.9, dynamic symbols and relocations ------------------------------*/
1843 /* Get the amount of memory required to hold the dynamic symbols. */
1845 static long
1846 vms_get_dynamic_symtab_upper_bound (abfd)
1847 bfd *abfd ATTRIBUTE_UNUSED;
1849 #if VMS_DEBUG
1850 vms_debug (1, "vms_get_dynamic_symtab_upper_bound(%p)\n", abfd);
1851 #endif
1852 return 0;
1855 static boolean
1856 vms_bfd_print_private_bfd_data (abfd, file)
1857 bfd *abfd ATTRIBUTE_UNUSED;
1858 void *file ATTRIBUTE_UNUSED;
1860 #if VMS_DEBUG
1861 vms_debug (1, "vms_bfd_print_private_bfd_data(%p)\n", abfd);
1862 #endif
1863 return 0;
1866 /* Read in the dynamic symbols. */
1868 static long
1869 vms_canonicalize_dynamic_symtab (abfd, symbols)
1870 bfd *abfd ATTRIBUTE_UNUSED;
1871 asymbol **symbols ATTRIBUTE_UNUSED;
1873 #if VMS_DEBUG
1874 vms_debug (1, "vms_canonicalize_dynamic_symtab(%p, <ret>)\n", abfd);
1875 #endif
1876 return 0L;
1879 /* Get the amount of memory required to hold the dynamic relocs. */
1881 static long
1882 vms_get_dynamic_reloc_upper_bound (abfd)
1883 bfd *abfd ATTRIBUTE_UNUSED;
1885 #if VMS_DEBUG
1886 vms_debug (1, "vms_get_dynamic_reloc_upper_bound(%p)\n", abfd);
1887 #endif
1888 return 0L;
1891 /* Read in the dynamic relocs. */
1893 static long
1894 vms_canonicalize_dynamic_reloc (abfd, arel, symbols)
1895 bfd *abfd ATTRIBUTE_UNUSED;
1896 arelent **arel ATTRIBUTE_UNUSED;
1897 asymbol **symbols ATTRIBUTE_UNUSED;
1899 #if VMS_DEBUG
1900 vms_debug (1, "vms_canonicalize_dynamic_reloc(%p)\n", abfd);
1901 #endif
1902 return 0L;