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elf_backend_dtrel_excludes_plt
[deliverable/binutils-gdb.git] / bfd / elf32-vax.c
1 /* VAX series support for 32-bit ELF
2 Copyright (C) 1993-2016 Free Software Foundation, Inc.
3 Contributed by Matt Thomas <matt@3am-software.com>.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
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 3 of the License, or
10 (at your option) any later version.
11
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.
16
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., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
21
22 #include "sysdep.h"
23 #include "bfd.h"
24 #include "bfdlink.h"
25 #include "libbfd.h"
26 #include "elf-bfd.h"
27 #include "elf/vax.h"
28
29 static reloc_howto_type *reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
30 static void rtype_to_howto (bfd *, arelent *, Elf_Internal_Rela *);
31 static struct bfd_hash_entry *elf_vax_link_hash_newfunc (struct bfd_hash_entry *,
32 struct bfd_hash_table *,
33 const char *);
34 static struct bfd_link_hash_table *elf_vax_link_hash_table_create (bfd *);
35 static bfd_boolean elf_vax_check_relocs (bfd *, struct bfd_link_info *,
36 asection *, const Elf_Internal_Rela *);
37 static bfd_boolean elf_vax_adjust_dynamic_symbol (struct bfd_link_info *,
38 struct elf_link_hash_entry *);
39 static bfd_boolean elf_vax_size_dynamic_sections (bfd *, struct bfd_link_info *);
40 static bfd_boolean elf_vax_relocate_section (bfd *, struct bfd_link_info *,
41 bfd *, asection *, bfd_byte *,
42 Elf_Internal_Rela *,
43 Elf_Internal_Sym *, asection **);
44 static bfd_boolean elf_vax_finish_dynamic_symbol (bfd *, struct bfd_link_info *,
45 struct elf_link_hash_entry *,
46 Elf_Internal_Sym *);
47 static bfd_boolean elf_vax_finish_dynamic_sections (bfd *,
48 struct bfd_link_info *);
49 static bfd_vma elf_vax_plt_sym_val (bfd_vma, const asection *,
50 const arelent *);
51
52 static bfd_boolean elf32_vax_set_private_flags (bfd *, flagword);
53 static bfd_boolean elf32_vax_print_private_bfd_data (bfd *, void *);
54
55 static reloc_howto_type howto_table[] = {
56 HOWTO (R_VAX_NONE, /* type */
57 0, /* rightshift */
58 3, /* size (0 = byte, 1 = short, 2 = long) */
59 0, /* bitsize */
60 FALSE, /* pc_relative */
61 0, /* bitpos */
62 complain_overflow_dont, /* complain_on_overflow */
63 bfd_elf_generic_reloc, /* special_function */
64 "R_VAX_NONE", /* name */
65 FALSE, /* partial_inplace */
66 0, /* src_mask */
67 0x00000000, /* dst_mask */
68 FALSE), /* pcrel_offset */
69
70 HOWTO (R_VAX_32, /* type */
71 0, /* rightshift */
72 2, /* size (0 = byte, 1 = short, 2 = long) */
73 32, /* bitsize */
74 FALSE, /* pc_relative */
75 0, /* bitpos */
76 complain_overflow_bitfield, /* complain_on_overflow */
77 bfd_elf_generic_reloc, /* special_function */
78 "R_VAX_32", /* name */
79 FALSE, /* partial_inplace */
80 0, /* src_mask */
81 0xffffffff, /* dst_mask */
82 FALSE), /* pcrel_offset */
83
84 HOWTO (R_VAX_16, /* type */
85 0, /* rightshift */
86 1, /* size (0 = byte, 1 = short, 2 = long) */
87 16, /* bitsize */
88 FALSE, /* pc_relative */
89 0, /* bitpos */
90 complain_overflow_bitfield, /* complain_on_overflow */
91 bfd_elf_generic_reloc, /* special_function */
92 "R_VAX_16", /* name */
93 FALSE, /* partial_inplace */
94 0, /* src_mask */
95 0x0000ffff, /* dst_mask */
96 FALSE), /* pcrel_offset */
97
98 HOWTO (R_VAX_8, /* type */
99 0, /* rightshift */
100 0, /* size (0 = byte, 1 = short, 2 = long) */
101 8, /* bitsize */
102 FALSE, /* pc_relative */
103 0, /* bitpos */
104 complain_overflow_bitfield, /* complain_on_overflow */
105 bfd_elf_generic_reloc, /* special_function */
106 "R_VAX_8", /* name */
107 FALSE, /* partial_inplace */
108 0, /* src_mask */
109 0x000000ff, /* dst_mask */
110 FALSE), /* pcrel_offset */
111
112 HOWTO (R_VAX_PC32, /* type */
113 0, /* rightshift */
114 2, /* size (0 = byte, 1 = short, 2 = long) */
115 32, /* bitsize */
116 TRUE, /* pc_relative */
117 0, /* bitpos */
118 complain_overflow_bitfield, /* complain_on_overflow */
119 bfd_elf_generic_reloc, /* special_function */
120 "R_VAX_PC32", /* name */
121 FALSE, /* partial_inplace */
122 0, /* src_mask */
123 0xffffffff, /* dst_mask */
124 TRUE), /* pcrel_offset */
125
126 HOWTO (R_VAX_PC16, /* type */
127 0, /* rightshift */
128 1, /* size (0 = byte, 1 = short, 2 = long) */
129 16, /* bitsize */
130 TRUE, /* pc_relative */
131 0, /* bitpos */
132 complain_overflow_signed, /* complain_on_overflow */
133 bfd_elf_generic_reloc, /* special_function */
134 "R_VAX_PC16", /* name */
135 FALSE, /* partial_inplace */
136 0, /* src_mask */
137 0x0000ffff, /* dst_mask */
138 TRUE), /* pcrel_offset */
139
140 HOWTO (R_VAX_PC8, /* type */
141 0, /* rightshift */
142 0, /* size (0 = byte, 1 = short, 2 = long) */
143 8, /* bitsize */
144 TRUE, /* pc_relative */
145 0, /* bitpos */
146 complain_overflow_signed, /* complain_on_overflow */
147 bfd_elf_generic_reloc, /* special_function */
148 "R_VAX_PC8", /* name */
149 FALSE, /* partial_inplace */
150 0, /* src_mask */
151 0x000000ff, /* dst_mask */
152 TRUE), /* pcrel_offset */
153
154 HOWTO (R_VAX_GOT32, /* type */
155 0, /* rightshift */
156 2, /* size (0 = byte, 1 = short, 2 = long) */
157 32, /* bitsize */
158 TRUE, /* pc_relative */
159 0, /* bitpos */
160 complain_overflow_bitfield, /* complain_on_overflow */
161 bfd_elf_generic_reloc, /* special_function */
162 "R_VAX_GOT32", /* name */
163 FALSE, /* partial_inplace */
164 0, /* src_mask */
165 0xffffffff, /* dst_mask */
166 TRUE), /* pcrel_offset */
167
168 EMPTY_HOWTO (-1),
169 EMPTY_HOWTO (-1),
170 EMPTY_HOWTO (-1),
171 EMPTY_HOWTO (-1),
172 EMPTY_HOWTO (-1),
173
174 HOWTO (R_VAX_PLT32, /* type */
175 0, /* rightshift */
176 2, /* size (0 = byte, 1 = short, 2 = long) */
177 32, /* bitsize */
178 TRUE, /* pc_relative */
179 0, /* bitpos */
180 complain_overflow_bitfield, /* complain_on_overflow */
181 bfd_elf_generic_reloc, /* special_function */
182 "R_VAX_PLT32", /* name */
183 FALSE, /* partial_inplace */
184 0, /* src_mask */
185 0xffffffff, /* dst_mask */
186 TRUE), /* pcrel_offset */
187
188 EMPTY_HOWTO (-1),
189 EMPTY_HOWTO (-1),
190 EMPTY_HOWTO (-1),
191 EMPTY_HOWTO (-1),
192 EMPTY_HOWTO (-1),
193
194 HOWTO (R_VAX_COPY, /* type */
195 0, /* rightshift */
196 0, /* size (0 = byte, 1 = short, 2 = long) */
197 0, /* bitsize */
198 FALSE, /* pc_relative */
199 0, /* bitpos */
200 complain_overflow_dont, /* complain_on_overflow */
201 bfd_elf_generic_reloc, /* special_function */
202 "R_VAX_COPY", /* name */
203 FALSE, /* partial_inplace */
204 0, /* src_mask */
205 0xffffffff, /* dst_mask */
206 FALSE), /* pcrel_offset */
207
208 HOWTO (R_VAX_GLOB_DAT, /* type */
209 0, /* rightshift */
210 2, /* size (0 = byte, 1 = short, 2 = long) */
211 32, /* bitsize */
212 FALSE, /* pc_relative */
213 0, /* bitpos */
214 complain_overflow_dont, /* complain_on_overflow */
215 bfd_elf_generic_reloc, /* special_function */
216 "R_VAX_GLOB_DAT", /* name */
217 FALSE, /* partial_inplace */
218 0, /* src_mask */
219 0xffffffff, /* dst_mask */
220 FALSE), /* pcrel_offset */
221
222 HOWTO (R_VAX_JMP_SLOT, /* type */
223 0, /* rightshift */
224 2, /* size (0 = byte, 1 = short, 2 = long) */
225 32, /* bitsize */
226 FALSE, /* pc_relative */
227 0, /* bitpos */
228 complain_overflow_dont, /* complain_on_overflow */
229 bfd_elf_generic_reloc, /* special_function */
230 "R_VAX_JMP_SLOT", /* name */
231 FALSE, /* partial_inplace */
232 0, /* src_mask */
233 0xffffffff, /* dst_mask */
234 FALSE), /* pcrel_offset */
235
236 HOWTO (R_VAX_RELATIVE, /* type */
237 0, /* rightshift */
238 2, /* size (0 = byte, 1 = short, 2 = long) */
239 32, /* bitsize */
240 FALSE, /* pc_relative */
241 0, /* bitpos */
242 complain_overflow_dont, /* complain_on_overflow */
243 bfd_elf_generic_reloc, /* special_function */
244 "R_VAX_RELATIVE", /* name */
245 FALSE, /* partial_inplace */
246 0, /* src_mask */
247 0xffffffff, /* dst_mask */
248 FALSE), /* pcrel_offset */
249
250 /* GNU extension to record C++ vtable hierarchy */
251 HOWTO (R_VAX_GNU_VTINHERIT, /* type */
252 0, /* rightshift */
253 2, /* size (0 = byte, 1 = short, 2 = long) */
254 0, /* bitsize */
255 FALSE, /* pc_relative */
256 0, /* bitpos */
257 complain_overflow_dont, /* complain_on_overflow */
258 NULL, /* special_function */
259 "R_VAX_GNU_VTINHERIT", /* name */
260 FALSE, /* partial_inplace */
261 0, /* src_mask */
262 0, /* dst_mask */
263 FALSE), /* pcrel_offset */
264
265 /* GNU extension to record C++ vtable member usage */
266 HOWTO (R_VAX_GNU_VTENTRY, /* type */
267 0, /* rightshift */
268 2, /* size (0 = byte, 1 = short, 2 = long) */
269 0, /* bitsize */
270 FALSE, /* pc_relative */
271 0, /* bitpos */
272 complain_overflow_dont, /* complain_on_overflow */
273 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
274 "R_VAX_GNU_VTENTRY", /* name */
275 FALSE, /* partial_inplace */
276 0, /* src_mask */
277 0, /* dst_mask */
278 FALSE), /* pcrel_offset */
279 };
280
281 static void
282 rtype_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
283 {
284 unsigned int r_type;
285
286 r_type = ELF32_R_TYPE (dst->r_info);
287 if (r_type >= R_VAX_max)
288 {
289 /* xgettext:c-format */
290 _bfd_error_handler (_("%B: unrecognised VAX reloc number: %d"),
291 abfd, r_type);
292 bfd_set_error (bfd_error_bad_value);
293 r_type = R_VAX_NONE;
294 }
295 cache_ptr->howto = &howto_table[r_type];
296 }
297
298 #define elf_info_to_howto rtype_to_howto
299
300 static const struct
301 {
302 bfd_reloc_code_real_type bfd_val;
303 int elf_val;
304 } reloc_map[] = {
305 { BFD_RELOC_NONE, R_VAX_NONE },
306 { BFD_RELOC_32, R_VAX_32 },
307 { BFD_RELOC_16, R_VAX_16 },
308 { BFD_RELOC_8, R_VAX_8 },
309 { BFD_RELOC_32_PCREL, R_VAX_PC32 },
310 { BFD_RELOC_16_PCREL, R_VAX_PC16 },
311 { BFD_RELOC_8_PCREL, R_VAX_PC8 },
312 { BFD_RELOC_32_GOT_PCREL, R_VAX_GOT32 },
313 { BFD_RELOC_32_PLT_PCREL, R_VAX_PLT32 },
314 { BFD_RELOC_NONE, R_VAX_COPY },
315 { BFD_RELOC_VAX_GLOB_DAT, R_VAX_GLOB_DAT },
316 { BFD_RELOC_VAX_JMP_SLOT, R_VAX_JMP_SLOT },
317 { BFD_RELOC_VAX_RELATIVE, R_VAX_RELATIVE },
318 { BFD_RELOC_CTOR, R_VAX_32 },
319 { BFD_RELOC_VTABLE_INHERIT, R_VAX_GNU_VTINHERIT },
320 { BFD_RELOC_VTABLE_ENTRY, R_VAX_GNU_VTENTRY },
321 };
322
323 static reloc_howto_type *
324 reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code)
325 {
326 unsigned int i;
327 for (i = 0; i < sizeof (reloc_map) / sizeof (reloc_map[0]); i++)
328 {
329 if (reloc_map[i].bfd_val == code)
330 return &howto_table[reloc_map[i].elf_val];
331 }
332 return 0;
333 }
334
335 static reloc_howto_type *
336 reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
337 const char *r_name)
338 {
339 unsigned int i;
340
341 for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++)
342 if (howto_table[i].name != NULL
343 && strcasecmp (howto_table[i].name, r_name) == 0)
344 return &howto_table[i];
345
346 return NULL;
347 }
348
349 #define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup
350 #define bfd_elf32_bfd_reloc_name_lookup reloc_name_lookup
351 #define ELF_ARCH bfd_arch_vax
352 /* end code generated by elf.el */
353 \f
354 /* Functions for the VAX ELF linker. */
355
356 /* The name of the dynamic interpreter. This is put in the .interp
357 section. */
358
359 #define ELF_DYNAMIC_INTERPRETER "/usr/libexec/ld.elf_so"
360
361 /* The size in bytes of an entry in the procedure linkage table. */
362
363 #define PLT_ENTRY_SIZE 12
364
365 /* The first entry in a procedure linkage table looks like this. See
366 the SVR4 ABI VAX supplement to see how this works. */
367
368 static const bfd_byte elf_vax_plt0_entry[PLT_ENTRY_SIZE] =
369 {
370 0xdd, 0xef, /* pushl l^ */
371 0, 0, 0, 0, /* offset to .plt.got + 4 */
372 0x17, 0xff, /* jmp @L^(pc) */
373 0, 0, 0, 0, /* offset to .plt.got + 8 */
374 };
375
376 /* Subsequent entries in a procedure linkage table look like this. */
377
378 static const bfd_byte elf_vax_plt_entry[PLT_ENTRY_SIZE] =
379 {
380 0xfc, 0x0f, /* .word ^M<r11:r2> */
381 0x16, 0xef, /* jsb L^(pc) */
382 0, 0, 0, 0, /* replaced with offset to start of .plt */
383 0, 0, 0, 0, /* index into .rela.plt */
384 };
385
386 /* The VAX linker needs to keep track of the number of relocs that it
387 decides to copy in check_relocs for each symbol. This is so that it
388 can discard PC relative relocs if it doesn't need them when linking
389 with -Bsymbolic. We store the information in a field extending the
390 regular ELF linker hash table. */
391
392 /* This structure keeps track of the number of PC relative relocs we have
393 copied for a given symbol. */
394
395 struct elf_vax_pcrel_relocs_copied
396 {
397 /* Next section. */
398 struct elf_vax_pcrel_relocs_copied *next;
399 /* A section in dynobj. */
400 asection *section;
401 /* Number of relocs copied in this section. */
402 bfd_size_type count;
403 };
404
405 /* VAX ELF linker hash entry. */
406
407 struct elf_vax_link_hash_entry
408 {
409 struct elf_link_hash_entry root;
410
411 /* Number of PC relative relocs copied for this symbol. */
412 struct elf_vax_pcrel_relocs_copied *pcrel_relocs_copied;
413
414 bfd_vma got_addend;
415 };
416
417 /* Declare this now that the above structures are defined. */
418
419 static bfd_boolean elf_vax_discard_copies (struct elf_vax_link_hash_entry *,
420 void *);
421
422 /* Declare this now that the above structures are defined. */
423
424 static bfd_boolean elf_vax_instantiate_got_entries (struct elf_link_hash_entry *,
425 void *);
426
427 /* Traverse an VAX ELF linker hash table. */
428
429 #define elf_vax_link_hash_traverse(table, func, info) \
430 (elf_link_hash_traverse \
431 ((table), \
432 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
433 (info)))
434
435 /* Create an entry in an VAX ELF linker hash table. */
436
437 static struct bfd_hash_entry *
438 elf_vax_link_hash_newfunc (struct bfd_hash_entry *entry,
439 struct bfd_hash_table *table,
440 const char *string)
441 {
442 struct elf_vax_link_hash_entry *ret =
443 (struct elf_vax_link_hash_entry *) entry;
444
445 /* Allocate the structure if it has not already been allocated by a
446 subclass. */
447 if (ret == NULL)
448 ret = ((struct elf_vax_link_hash_entry *)
449 bfd_hash_allocate (table,
450 sizeof (struct elf_vax_link_hash_entry)));
451 if (ret == NULL)
452 return (struct bfd_hash_entry *) ret;
453
454 /* Call the allocation method of the superclass. */
455 ret = ((struct elf_vax_link_hash_entry *)
456 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
457 table, string));
458 if (ret != NULL)
459 {
460 ret->pcrel_relocs_copied = NULL;
461 }
462
463 return (struct bfd_hash_entry *) ret;
464 }
465
466 /* Create an VAX ELF linker hash table. */
467
468 static struct bfd_link_hash_table *
469 elf_vax_link_hash_table_create (bfd *abfd)
470 {
471 struct elf_link_hash_table *ret;
472 bfd_size_type amt = sizeof (struct elf_link_hash_table);
473
474 ret = bfd_zmalloc (amt);
475 if (ret == NULL)
476 return NULL;
477
478 if (!_bfd_elf_link_hash_table_init (ret, abfd,
479 elf_vax_link_hash_newfunc,
480 sizeof (struct elf_vax_link_hash_entry),
481 GENERIC_ELF_DATA))
482 {
483 free (ret);
484 return NULL;
485 }
486
487 return &ret->root;
488 }
489
490 /* Keep vax-specific flags in the ELF header */
491 static bfd_boolean
492 elf32_vax_set_private_flags (bfd *abfd, flagword flags)
493 {
494 elf_elfheader (abfd)->e_flags = flags;
495 elf_flags_init (abfd) = TRUE;
496 return TRUE;
497 }
498
499 /* Merge backend specific data from an object file to the output
500 object file when linking. */
501 static bfd_boolean
502 elf32_vax_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
503 {
504 bfd *obfd = info->output_bfd;
505 flagword in_flags;
506
507 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
508 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
509 return TRUE;
510
511 in_flags = elf_elfheader (ibfd)->e_flags;
512
513 if (!elf_flags_init (obfd))
514 {
515 elf_flags_init (obfd) = TRUE;
516 elf_elfheader (obfd)->e_flags = in_flags;
517 }
518
519 return TRUE;
520 }
521
522 /* Display the flags field */
523 static bfd_boolean
524 elf32_vax_print_private_bfd_data (bfd *abfd, void * ptr)
525 {
526 FILE *file = (FILE *) ptr;
527
528 BFD_ASSERT (abfd != NULL && ptr != NULL);
529
530 /* Print normal ELF private data. */
531 _bfd_elf_print_private_bfd_data (abfd, ptr);
532
533 /* Ignore init flag - it may not be set, despite the flags field containing valid data. */
534
535 /* xgettext:c-format */
536 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
537
538 if (elf_elfheader (abfd)->e_flags & EF_VAX_NONPIC)
539 fprintf (file, _(" [nonpic]"));
540
541 if (elf_elfheader (abfd)->e_flags & EF_VAX_DFLOAT)
542 fprintf (file, _(" [d-float]"));
543
544 if (elf_elfheader (abfd)->e_flags & EF_VAX_GFLOAT)
545 fprintf (file, _(" [g-float]"));
546
547 fputc ('\n', file);
548
549 return TRUE;
550 }
551 /* Look through the relocs for a section during the first phase, and
552 allocate space in the global offset table or procedure linkage
553 table. */
554
555 static bfd_boolean
556 elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
557 const Elf_Internal_Rela *relocs)
558 {
559 bfd *dynobj;
560 Elf_Internal_Shdr *symtab_hdr;
561 struct elf_link_hash_entry **sym_hashes;
562 const Elf_Internal_Rela *rel;
563 const Elf_Internal_Rela *rel_end;
564 asection *sreloc;
565
566 if (bfd_link_relocatable (info))
567 return TRUE;
568
569 dynobj = elf_hash_table (info)->dynobj;
570 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
571 sym_hashes = elf_sym_hashes (abfd);
572
573 sreloc = NULL;
574
575 rel_end = relocs + sec->reloc_count;
576 for (rel = relocs; rel < rel_end; rel++)
577 {
578 unsigned long r_symndx;
579 struct elf_link_hash_entry *h;
580
581 r_symndx = ELF32_R_SYM (rel->r_info);
582
583 if (r_symndx < symtab_hdr->sh_info)
584 h = NULL;
585 else
586 {
587 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
588 while (h->root.type == bfd_link_hash_indirect
589 || h->root.type == bfd_link_hash_warning)
590 h = (struct elf_link_hash_entry *) h->root.u.i.link;
591
592 /* PR15323, ref flags aren't set for references in the same
593 object. */
594 h->root.non_ir_ref = 1;
595 }
596
597 switch (ELF32_R_TYPE (rel->r_info))
598 {
599 case R_VAX_GOT32:
600 BFD_ASSERT (h != NULL);
601
602 /* If this is a local symbol, we resolve it directly without
603 creating a global offset table entry. */
604 if (h->forced_local
605 || h == elf_hash_table (info)->hgot
606 || h == elf_hash_table (info)->hplt)
607 break;
608
609 /* This symbol requires a global offset table entry. */
610
611 if (dynobj == NULL)
612 {
613 /* Create the .got section. */
614 elf_hash_table (info)->dynobj = dynobj = abfd;
615 if (!_bfd_elf_create_got_section (dynobj, info))
616 return FALSE;
617 }
618
619 if (h != NULL)
620 {
621 struct elf_vax_link_hash_entry *eh;
622
623 eh = (struct elf_vax_link_hash_entry *) h;
624 if (h->got.refcount == -1)
625 {
626 h->got.refcount = 1;
627 eh->got_addend = rel->r_addend;
628 }
629 else
630 {
631 h->got.refcount++;
632 if (eh->got_addend != (bfd_vma) rel->r_addend)
633 _bfd_error_handler
634 /* xgettext:c-format */
635 (_("%s: warning: GOT addend of %ld to `%s' does"
636 " not match previous GOT addend of %ld"),
637 bfd_get_filename (abfd), rel->r_addend,
638 h->root.root.string,
639 eh->got_addend);
640
641 }
642 }
643 break;
644
645 case R_VAX_PLT32:
646 /* This symbol requires a procedure linkage table entry. We
647 actually build the entry in adjust_dynamic_symbol,
648 because this might be a case of linking PIC code which is
649 never referenced by a dynamic object, in which case we
650 don't need to generate a procedure linkage table entry
651 after all. */
652 BFD_ASSERT (h != NULL);
653
654 /* If this is a local symbol, we resolve it directly without
655 creating a procedure linkage table entry. */
656 if (h->forced_local)
657 break;
658
659 h->needs_plt = 1;
660 if (h->plt.refcount == -1)
661 h->plt.refcount = 1;
662 else
663 h->plt.refcount++;
664 break;
665
666 case R_VAX_PC8:
667 case R_VAX_PC16:
668 case R_VAX_PC32:
669 /* If we are creating a shared library and this is not a local
670 symbol, we need to copy the reloc into the shared library.
671 However when linking with -Bsymbolic and this is a global
672 symbol which is defined in an object we are including in the
673 link (i.e., DEF_REGULAR is set), then we can resolve the
674 reloc directly. At this point we have not seen all the input
675 files, so it is possible that DEF_REGULAR is not set now but
676 will be set later (it is never cleared). We account for that
677 possibility below by storing information in the
678 pcrel_relocs_copied field of the hash table entry. */
679 if (!(bfd_link_pic (info)
680 && (sec->flags & SEC_ALLOC) != 0
681 && h != NULL
682 && (!info->symbolic
683 || !h->def_regular)))
684 {
685 if (h != NULL
686 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
687 && !h->forced_local)
688 {
689 /* Make sure a plt entry is created for this symbol if
690 it turns out to be a function defined by a dynamic
691 object. */
692 if (h->plt.refcount == -1)
693 h->plt.refcount = 1;
694 else
695 h->plt.refcount++;
696 }
697 break;
698 }
699 /* If this is a local symbol, we can resolve it directly. */
700 if (h != NULL
701 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
702 || h->forced_local))
703 break;
704
705 /* Fall through. */
706 case R_VAX_8:
707 case R_VAX_16:
708 case R_VAX_32:
709 if (h != NULL && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
710 {
711 /* Make sure a plt entry is created for this symbol if it
712 turns out to be a function defined by a dynamic object. */
713 if (h->plt.refcount == -1)
714 h->plt.refcount = 1;
715 else
716 h->plt.refcount++;
717 }
718
719 /* If we are creating a shared library, we need to copy the
720 reloc into the shared library. */
721 if (bfd_link_pic (info)
722 && (sec->flags & SEC_ALLOC) != 0)
723 {
724 /* When creating a shared object, we must copy these
725 reloc types into the output file. We create a reloc
726 section in dynobj and make room for this reloc. */
727 if (sreloc == NULL)
728 {
729 sreloc = _bfd_elf_make_dynamic_reloc_section
730 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
731
732 if (sreloc == NULL)
733 return FALSE;
734
735 if (sec->flags & SEC_READONLY)
736 info->flags |= DF_TEXTREL;
737 }
738
739 sreloc->size += sizeof (Elf32_External_Rela);
740
741 /* If we are linking with -Bsymbolic, we count the number of
742 PC relative relocations we have entered for this symbol,
743 so that we can discard them again if the symbol is later
744 defined by a regular object. Note that this function is
745 only called if we are using a vaxelf linker hash table,
746 which means that h is really a pointer to an
747 elf_vax_link_hash_entry. */
748 if ((ELF32_R_TYPE (rel->r_info) == R_VAX_PC8
749 || ELF32_R_TYPE (rel->r_info) == R_VAX_PC16
750 || ELF32_R_TYPE (rel->r_info) == R_VAX_PC32)
751 && info->symbolic)
752 {
753 struct elf_vax_link_hash_entry *eh;
754 struct elf_vax_pcrel_relocs_copied *p;
755
756 eh = (struct elf_vax_link_hash_entry *) h;
757
758 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
759 if (p->section == sreloc)
760 break;
761
762 if (p == NULL)
763 {
764 p = ((struct elf_vax_pcrel_relocs_copied *)
765 bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
766 if (p == NULL)
767 return FALSE;
768 p->next = eh->pcrel_relocs_copied;
769 eh->pcrel_relocs_copied = p;
770 p->section = sreloc;
771 p->count = 0;
772 }
773
774 ++p->count;
775 }
776 }
777
778 break;
779
780 /* This relocation describes the C++ object vtable hierarchy.
781 Reconstruct it for later use during GC. */
782 case R_VAX_GNU_VTINHERIT:
783 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
784 return FALSE;
785 break;
786
787 /* This relocation describes which C++ vtable entries are actually
788 used. Record for later use during GC. */
789 case R_VAX_GNU_VTENTRY:
790 BFD_ASSERT (h != NULL);
791 if (h != NULL
792 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
793 return FALSE;
794 break;
795
796 default:
797 break;
798 }
799 }
800
801 return TRUE;
802 }
803
804 /* Return the section that should be marked against GC for a given
805 relocation. */
806
807 static asection *
808 elf_vax_gc_mark_hook (asection *sec,
809 struct bfd_link_info *info,
810 Elf_Internal_Rela *rel,
811 struct elf_link_hash_entry *h,
812 Elf_Internal_Sym *sym)
813 {
814 if (h != NULL)
815 switch (ELF32_R_TYPE (rel->r_info))
816 {
817 case R_VAX_GNU_VTINHERIT:
818 case R_VAX_GNU_VTENTRY:
819 return NULL;
820 }
821
822 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
823 }
824
825 /* Update the got entry reference counts for the section being removed. */
826
827 static bfd_boolean
828 elf_vax_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, asection *sec,
829 const Elf_Internal_Rela *relocs)
830 {
831 Elf_Internal_Shdr *symtab_hdr;
832 struct elf_link_hash_entry **sym_hashes;
833 const Elf_Internal_Rela *rel, *relend;
834 bfd *dynobj;
835
836 if (bfd_link_relocatable (info))
837 return TRUE;
838
839 dynobj = elf_hash_table (info)->dynobj;
840 if (dynobj == NULL)
841 return TRUE;
842
843 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
844 sym_hashes = elf_sym_hashes (abfd);
845
846 relend = relocs + sec->reloc_count;
847 for (rel = relocs; rel < relend; rel++)
848 {
849 unsigned long r_symndx;
850 struct elf_link_hash_entry *h = NULL;
851
852 r_symndx = ELF32_R_SYM (rel->r_info);
853 if (r_symndx >= symtab_hdr->sh_info)
854 {
855 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
856 while (h->root.type == bfd_link_hash_indirect
857 || h->root.type == bfd_link_hash_warning)
858 h = (struct elf_link_hash_entry *) h->root.u.i.link;
859 }
860
861 switch (ELF32_R_TYPE (rel->r_info))
862 {
863 case R_VAX_GOT32:
864 if (h != NULL && h->got.refcount > 0)
865 --h->got.refcount;
866 break;
867
868 case R_VAX_PLT32:
869 case R_VAX_PC8:
870 case R_VAX_PC16:
871 case R_VAX_PC32:
872 case R_VAX_8:
873 case R_VAX_16:
874 case R_VAX_32:
875 if (h != NULL && h->plt.refcount > 0)
876 --h->plt.refcount;
877 break;
878
879 default:
880 break;
881 }
882 }
883
884 return TRUE;
885 }
886
887 /* Adjust a symbol defined by a dynamic object and referenced by a
888 regular object. The current definition is in some section of the
889 dynamic object, but we're not including those sections. We have to
890 change the definition to something the rest of the link can
891 understand. */
892
893 static bfd_boolean
894 elf_vax_adjust_dynamic_symbol (struct bfd_link_info *info,
895 struct elf_link_hash_entry *h)
896 {
897 bfd *dynobj;
898 asection *s;
899
900 dynobj = elf_hash_table (info)->dynobj;
901
902 /* Make sure we know what is going on here. */
903 BFD_ASSERT (dynobj != NULL
904 && (h->needs_plt
905 || h->u.weakdef != NULL
906 || (h->def_dynamic
907 && h->ref_regular
908 && !h->def_regular)));
909
910 /* If this is a function, put it in the procedure linkage table. We
911 will fill in the contents of the procedure linkage table later,
912 when we know the address of the .got section. */
913 if (h->type == STT_FUNC
914 || h->needs_plt)
915 {
916 if (h->plt.refcount <= 0
917 || SYMBOL_CALLS_LOCAL (info, h)
918 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
919 && h->root.type == bfd_link_hash_undefweak))
920 {
921 /* This case can occur if we saw a PLTxx reloc in an input
922 file, but the symbol was never referred to by a dynamic
923 object, or if all references were garbage collected. In
924 such a case, we don't actually need to build a procedure
925 linkage table, and we can just do a PCxx reloc instead. */
926 h->plt.offset = (bfd_vma) -1;
927 h->needs_plt = 0;
928 return TRUE;
929 }
930
931 s = elf_hash_table (info)->splt;
932 BFD_ASSERT (s != NULL);
933
934 /* If this is the first .plt entry, make room for the special
935 first entry. */
936 if (s->size == 0)
937 {
938 s->size += PLT_ENTRY_SIZE;
939 }
940
941 /* If this symbol is not defined in a regular file, and we are
942 not generating a shared library, then set the symbol to this
943 location in the .plt. This is required to make function
944 pointers compare as equal between the normal executable and
945 the shared library. */
946 if (!bfd_link_pic (info)
947 && !h->def_regular)
948 {
949 h->root.u.def.section = s;
950 h->root.u.def.value = s->size;
951 }
952
953 h->plt.offset = s->size;
954
955 /* Make room for this entry. */
956 s->size += PLT_ENTRY_SIZE;
957
958 /* We also need to make an entry in the .got.plt section, which
959 will be placed in the .got section by the linker script. */
960
961 s = elf_hash_table (info)->sgotplt;
962 BFD_ASSERT (s != NULL);
963 s->size += 4;
964
965 /* We also need to make an entry in the .rela.plt section. */
966
967 s = elf_hash_table (info)->srelplt;
968 BFD_ASSERT (s != NULL);
969 s->size += sizeof (Elf32_External_Rela);
970
971 return TRUE;
972 }
973
974 /* Reinitialize the plt offset now that it is not used as a reference
975 count any more. */
976 h->plt.offset = (bfd_vma) -1;
977
978 /* If this is a weak symbol, and there is a real definition, the
979 processor independent code will have arranged for us to see the
980 real definition first, and we can just use the same value. */
981 if (h->u.weakdef != NULL)
982 {
983 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
984 || h->u.weakdef->root.type == bfd_link_hash_defweak);
985 h->root.u.def.section = h->u.weakdef->root.u.def.section;
986 h->root.u.def.value = h->u.weakdef->root.u.def.value;
987 return TRUE;
988 }
989
990 /* This is a reference to a symbol defined by a dynamic object which
991 is not a function. */
992
993 /* If we are creating a shared library, we must presume that the
994 only references to the symbol are via the global offset table.
995 For such cases we need not do anything here; the relocations will
996 be handled correctly by relocate_section. */
997 if (bfd_link_pic (info))
998 return TRUE;
999
1000 /* We must allocate the symbol in our .dynbss section, which will
1001 become part of the .bss section of the executable. There will be
1002 an entry for this symbol in the .dynsym section. The dynamic
1003 object will contain position independent code, so all references
1004 from the dynamic object to this symbol will go through the global
1005 offset table. The dynamic linker will use the .dynsym entry to
1006 determine the address it must put in the global offset table, so
1007 both the dynamic object and the regular object will refer to the
1008 same memory location for the variable. */
1009
1010 s = bfd_get_linker_section (dynobj, ".dynbss");
1011 BFD_ASSERT (s != NULL);
1012
1013 /* We must generate a R_VAX_COPY reloc to tell the dynamic linker to
1014 copy the initial value out of the dynamic object and into the
1015 runtime process image. We need to remember the offset into the
1016 .rela.bss section we are going to use. */
1017 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1018 {
1019 asection *srel;
1020
1021 srel = bfd_get_linker_section (dynobj, ".rela.bss");
1022 BFD_ASSERT (srel != NULL);
1023 srel->size += sizeof (Elf32_External_Rela);
1024 h->needs_copy = 1;
1025 }
1026
1027 return _bfd_elf_adjust_dynamic_copy (info, h, s);
1028 }
1029
1030 /* This function is called via elf_link_hash_traverse. It resets GOT
1031 and PLT (.GOT) reference counts back to -1 so normal PC32 relocation
1032 will be done. */
1033
1034 static bfd_boolean
1035 elf_vax_discard_got_entries (struct elf_link_hash_entry *h,
1036 void *infoptr ATTRIBUTE_UNUSED)
1037 {
1038 h->got.refcount = -1;
1039 h->plt.refcount = -1;
1040
1041 return TRUE;
1042 }
1043
1044 /* Discard unused dynamic data if this is a static link. */
1045
1046 static bfd_boolean
1047 elf_vax_always_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
1048 struct bfd_link_info *info)
1049 {
1050 bfd *dynobj;
1051 asection *s;
1052
1053 dynobj = elf_hash_table (info)->dynobj;
1054
1055 if (dynobj && !elf_hash_table (info)->dynamic_sections_created)
1056 {
1057 /* We may have created entries in the .rela.got and .got sections.
1058 However, if we are not creating the dynamic sections, we will
1059 not actually use these entries. Reset the size of .rela.got
1060 and .got, which will cause them to get stripped from the output
1061 file below. */
1062 s = elf_hash_table (info)->srelgot;
1063 if (s != NULL)
1064 s->size = 0;
1065 s = elf_hash_table (info)->sgotplt;
1066 if (s != NULL)
1067 s->size = 0;
1068 s = elf_hash_table (info)->sgot;
1069 if (s != NULL)
1070 s->size = 0;
1071 }
1072
1073 /* If this is a static link, we need to discard all the got entries we've
1074 recorded. */
1075 if (!dynobj || !elf_hash_table (info)->dynamic_sections_created)
1076 elf_link_hash_traverse (elf_hash_table (info),
1077 elf_vax_discard_got_entries,
1078 info);
1079
1080 return TRUE;
1081 }
1082
1083 /* Set the sizes of the dynamic sections. */
1084
1085 static bfd_boolean
1086 elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
1087 {
1088 bfd *dynobj;
1089 asection *s;
1090 bfd_boolean plt;
1091 bfd_boolean relocs;
1092 bfd_boolean reltext;
1093
1094 dynobj = elf_hash_table (info)->dynobj;
1095 BFD_ASSERT (dynobj != NULL);
1096
1097 if (elf_hash_table (info)->dynamic_sections_created)
1098 {
1099 /* Set the contents of the .interp section to the interpreter. */
1100 if (bfd_link_executable (info) && !info->nointerp)
1101 {
1102 s = bfd_get_linker_section (dynobj, ".interp");
1103 BFD_ASSERT (s != NULL);
1104 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1105 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1106 }
1107 }
1108
1109 /* If this is a -Bsymbolic shared link, then we need to discard all PC
1110 relative relocs against symbols defined in a regular object. We
1111 allocated space for them in the check_relocs routine, but we will not
1112 fill them in in the relocate_section routine. */
1113 if (bfd_link_pic (info) && info->symbolic)
1114 elf_vax_link_hash_traverse (elf_hash_table (info),
1115 elf_vax_discard_copies,
1116 NULL);
1117
1118 /* If this is a -Bsymbolic shared link, we need to discard all the got
1119 entries we've recorded. Otherwise, we need to instantiate (allocate
1120 space for them). */
1121 elf_link_hash_traverse (elf_hash_table (info),
1122 elf_vax_instantiate_got_entries,
1123 info);
1124
1125 /* The check_relocs and adjust_dynamic_symbol entry points have
1126 determined the sizes of the various dynamic sections. Allocate
1127 memory for them. */
1128 plt = FALSE;
1129 relocs = FALSE;
1130 reltext = FALSE;
1131 for (s = dynobj->sections; s != NULL; s = s->next)
1132 {
1133 const char *name;
1134
1135 if ((s->flags & SEC_LINKER_CREATED) == 0)
1136 continue;
1137
1138 /* It's OK to base decisions on the section name, because none
1139 of the dynobj section names depend upon the input files. */
1140 name = bfd_get_section_name (dynobj, s);
1141
1142 if (strcmp (name, ".plt") == 0)
1143 {
1144 /* Remember whether there is a PLT. */
1145 plt = s->size != 0;
1146 }
1147 else if (CONST_STRNEQ (name, ".rela"))
1148 {
1149 if (s->size != 0)
1150 {
1151 asection *target;
1152
1153 /* Remember whether there are any reloc sections other
1154 than .rela.plt. */
1155 if (strcmp (name, ".rela.plt") != 0)
1156 {
1157 const char *outname;
1158
1159 relocs = TRUE;
1160
1161 /* If this relocation section applies to a read only
1162 section, then we probably need a DT_TEXTREL
1163 entry. .rela.plt is actually associated with
1164 .got.plt, which is never readonly. */
1165 outname = bfd_get_section_name (output_bfd,
1166 s->output_section);
1167 target = bfd_get_section_by_name (output_bfd, outname + 5);
1168 if (target != NULL
1169 && (target->flags & SEC_READONLY) != 0
1170 && (target->flags & SEC_ALLOC) != 0)
1171 reltext = TRUE;
1172 }
1173
1174 /* We use the reloc_count field as a counter if we need
1175 to copy relocs into the output file. */
1176 s->reloc_count = 0;
1177 }
1178 }
1179 else if (! CONST_STRNEQ (name, ".got")
1180 && strcmp (name, ".dynbss") != 0)
1181 {
1182 /* It's not one of our sections, so don't allocate space. */
1183 continue;
1184 }
1185
1186 if (s->size == 0)
1187 {
1188 /* If we don't need this section, strip it from the
1189 output file. This is mostly to handle .rela.bss and
1190 .rela.plt. We must create both sections in
1191 create_dynamic_sections, because they must be created
1192 before the linker maps input sections to output
1193 sections. The linker does that before
1194 adjust_dynamic_symbol is called, and it is that
1195 function which decides whether anything needs to go
1196 into these sections. */
1197 s->flags |= SEC_EXCLUDE;
1198 continue;
1199 }
1200
1201 if ((s->flags & SEC_HAS_CONTENTS) == 0)
1202 continue;
1203
1204 /* Allocate memory for the section contents. */
1205 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
1206 if (s->contents == NULL)
1207 return FALSE;
1208 }
1209
1210 if (elf_hash_table (info)->dynamic_sections_created)
1211 {
1212 /* Add some entries to the .dynamic section. We fill in the
1213 values later, in elf_vax_finish_dynamic_sections, but we
1214 must add the entries now so that we get the correct size for
1215 the .dynamic section. The DT_DEBUG entry is filled in by the
1216 dynamic linker and used by the debugger. */
1217 #define add_dynamic_entry(TAG, VAL) \
1218 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
1219
1220 if (!bfd_link_pic (info))
1221 {
1222 if (!add_dynamic_entry (DT_DEBUG, 0))
1223 return FALSE;
1224 }
1225
1226 if (plt)
1227 {
1228 if (!add_dynamic_entry (DT_PLTGOT, 0)
1229 || !add_dynamic_entry (DT_PLTRELSZ, 0)
1230 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
1231 || !add_dynamic_entry (DT_JMPREL, 0))
1232 return FALSE;
1233 }
1234
1235 if (relocs)
1236 {
1237 if (!add_dynamic_entry (DT_RELA, 0)
1238 || !add_dynamic_entry (DT_RELASZ, 0)
1239 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
1240 return FALSE;
1241 }
1242
1243 if (reltext || (info->flags & DF_TEXTREL) != 0)
1244 {
1245 if (!add_dynamic_entry (DT_TEXTREL, 0))
1246 return FALSE;
1247 }
1248 }
1249 #undef add_dynamic_entry
1250
1251 return TRUE;
1252 }
1253
1254 /* This function is called via elf_vax_link_hash_traverse if we are
1255 creating a shared object with -Bsymbolic. It discards the space
1256 allocated to copy PC relative relocs against symbols which are defined
1257 in regular objects. We allocated space for them in the check_relocs
1258 routine, but we won't fill them in in the relocate_section routine. */
1259
1260 static bfd_boolean
1261 elf_vax_discard_copies (struct elf_vax_link_hash_entry *h,
1262 void * ignore ATTRIBUTE_UNUSED)
1263 {
1264 struct elf_vax_pcrel_relocs_copied *s;
1265
1266 /* We only discard relocs for symbols defined in a regular object. */
1267 if (!h->root.def_regular)
1268 return TRUE;
1269
1270 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
1271 s->section->size -= s->count * sizeof (Elf32_External_Rela);
1272
1273 return TRUE;
1274 }
1275
1276 /* This function is called via elf_link_hash_traverse. It looks for
1277 entries that have GOT or PLT (.GOT) references. If creating a shared
1278 object with -Bsymbolic, or the symbol has been forced local, then it
1279 resets the reference count back to -1 so normal PC32 relocation will
1280 be done. Otherwise space in the .got and .rela.got will be reserved
1281 for the symbol. */
1282
1283 static bfd_boolean
1284 elf_vax_instantiate_got_entries (struct elf_link_hash_entry *h, void * infoptr)
1285 {
1286 struct bfd_link_info *info = (struct bfd_link_info *) infoptr;
1287 bfd *dynobj;
1288 asection *sgot;
1289 asection *srelgot;
1290
1291 /* We don't care about non-GOT (and non-PLT) entries. */
1292 if (h->got.refcount <= 0 && h->plt.refcount <= 0)
1293 return TRUE;
1294
1295 dynobj = elf_hash_table (info)->dynobj;
1296 BFD_ASSERT (dynobj != NULL);
1297
1298 sgot = elf_hash_table (info)->sgot;
1299 srelgot = elf_hash_table (info)->srelgot;
1300
1301 if (SYMBOL_REFERENCES_LOCAL (info, h))
1302 {
1303 h->got.refcount = -1;
1304 h->plt.refcount = -1;
1305 }
1306 else if (h->got.refcount > 0)
1307 {
1308 /* Make sure this symbol is output as a dynamic symbol. */
1309 if (h->dynindx == -1)
1310 {
1311 if (!bfd_elf_link_record_dynamic_symbol (info, h))
1312 return FALSE;
1313 }
1314
1315 /* Allocate space in the .got and .rela.got sections. */
1316 sgot->size += 4;
1317 srelgot->size += sizeof (Elf32_External_Rela);
1318 }
1319
1320 return TRUE;
1321 }
1322
1323 /* Relocate an VAX ELF section. */
1324
1325 static bfd_boolean
1326 elf_vax_relocate_section (bfd *output_bfd,
1327 struct bfd_link_info *info,
1328 bfd *input_bfd,
1329 asection *input_section,
1330 bfd_byte *contents,
1331 Elf_Internal_Rela *relocs,
1332 Elf_Internal_Sym *local_syms,
1333 asection **local_sections)
1334 {
1335 Elf_Internal_Shdr *symtab_hdr;
1336 struct elf_link_hash_entry **sym_hashes;
1337 bfd_vma plt_index;
1338 bfd_vma got_offset;
1339 asection *sgot;
1340 asection *splt;
1341 asection *sgotplt;
1342 asection *sreloc;
1343 Elf_Internal_Rela *rel;
1344 Elf_Internal_Rela *relend;
1345
1346 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1347 sym_hashes = elf_sym_hashes (input_bfd);
1348
1349 sgot = NULL;
1350 splt = NULL;
1351 sgotplt = NULL;
1352 sreloc = NULL;
1353
1354 rel = relocs;
1355 relend = relocs + input_section->reloc_count;
1356 for (; rel < relend; rel++)
1357 {
1358 int r_type;
1359 reloc_howto_type *howto;
1360 unsigned long r_symndx;
1361 struct elf_link_hash_entry *h;
1362 Elf_Internal_Sym *sym;
1363 asection *sec;
1364 bfd_vma relocation;
1365 bfd_reloc_status_type r;
1366
1367 r_type = ELF32_R_TYPE (rel->r_info);
1368 if (r_type < 0 || r_type >= (int) R_VAX_max)
1369 {
1370 bfd_set_error (bfd_error_bad_value);
1371 return FALSE;
1372 }
1373 howto = howto_table + r_type;
1374
1375 r_symndx = ELF32_R_SYM (rel->r_info);
1376 h = NULL;
1377 sym = NULL;
1378 sec = NULL;
1379 if (r_symndx < symtab_hdr->sh_info)
1380 {
1381 sym = local_syms + r_symndx;
1382 sec = local_sections[r_symndx];
1383 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1384 }
1385 else
1386 {
1387 bfd_boolean unresolved_reloc;
1388 bfd_boolean warned, ignored;
1389
1390 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1391 r_symndx, symtab_hdr, sym_hashes,
1392 h, sec, relocation,
1393 unresolved_reloc, warned, ignored);
1394
1395 if ((h->root.type == bfd_link_hash_defined
1396 || h->root.type == bfd_link_hash_defweak)
1397 && ((r_type == R_VAX_PLT32
1398 && h->plt.offset != (bfd_vma) -1
1399 && !h->forced_local
1400 && elf_hash_table (info)->dynamic_sections_created)
1401 || (r_type == R_VAX_GOT32
1402 && h->got.offset != (bfd_vma) -1
1403 && !h->forced_local
1404 && elf_hash_table (info)->dynamic_sections_created
1405 && (! bfd_link_pic (info)
1406 || (! info->symbolic && h->dynindx != -1)
1407 || !h->def_regular))
1408 || (bfd_link_pic (info)
1409 && ((! info->symbolic && h->dynindx != -1)
1410 || !h->def_regular)
1411 && ((input_section->flags & SEC_ALLOC) != 0
1412 /* DWARF will emit R_VAX_32 relocations in its
1413 sections against symbols defined externally
1414 in shared libraries. We can't do anything
1415 with them here. */
1416
1417 || ((input_section->flags & SEC_DEBUGGING) != 0
1418 && h->def_dynamic))
1419 && (r_type == R_VAX_8
1420 || r_type == R_VAX_16
1421 || r_type == R_VAX_32))))
1422 /* In these cases, we don't need the relocation
1423 value. We check specially because in some
1424 obscure cases sec->output_section will be NULL. */
1425 relocation = 0;
1426 }
1427
1428 if (sec != NULL && discarded_section (sec))
1429 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1430 rel, 1, relend, howto, 0, contents);
1431
1432 if (bfd_link_relocatable (info))
1433 continue;
1434
1435 switch (r_type)
1436 {
1437 case R_VAX_GOT32:
1438 /* Relocation is to the address of the entry for this symbol
1439 in the global offset table. */
1440
1441 /* Resolve a GOTxx reloc against a local symbol directly,
1442 without using the global offset table. */
1443 if (h == NULL
1444 || h->got.offset == (bfd_vma) -1)
1445 break;
1446
1447 {
1448 bfd_vma off;
1449
1450 sgot = elf_hash_table (info)->sgot;
1451 BFD_ASSERT (sgot != NULL);
1452
1453 off = h->got.offset;
1454 BFD_ASSERT (off < sgot->size);
1455
1456 bfd_put_32 (output_bfd, rel->r_addend, sgot->contents + off);
1457
1458 relocation = sgot->output_offset + off;
1459 /* The GOT relocation uses the addend. */
1460 rel->r_addend = 0;
1461
1462 /* Change the reference to be indirect. */
1463 contents[rel->r_offset - 1] |= 0x10;
1464 relocation += sgot->output_section->vma;
1465 }
1466 break;
1467
1468 case R_VAX_PC32:
1469 /* If we are creating an executable and the function this
1470 reloc refers to is in a shared lib, then we made a PLT
1471 entry for this symbol and need to handle the reloc like
1472 a PLT reloc. */
1473 if (bfd_link_pic (info))
1474 goto r_vax_pc32_shared;
1475 /* Fall through. */
1476 case R_VAX_PLT32:
1477 /* Relocation is to the entry for this symbol in the
1478 procedure linkage table. */
1479
1480 /* Resolve a PLTxx reloc against a local symbol directly,
1481 without using the procedure linkage table. */
1482 if (h == NULL
1483 || h->plt.offset == (bfd_vma) -1)
1484 break;
1485
1486 splt = elf_hash_table (info)->splt;
1487 BFD_ASSERT (splt != NULL);
1488
1489 sgotplt = elf_hash_table (info)->sgotplt;
1490 BFD_ASSERT (sgotplt != NULL);
1491
1492 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1493
1494 /* Get the offset into the .got table of the entry that
1495 corresponds to this function. Each .got entry is 4 bytes.
1496 The first two are reserved. */
1497 got_offset = (plt_index + 3) * 4;
1498
1499 /* We want the relocation to point into the .got.plt instead
1500 of the plt itself. */
1501 relocation = (sgotplt->output_section->vma
1502 + sgotplt->output_offset
1503 + got_offset);
1504 contents[rel->r_offset-1] |= 0x10; /* make indirect */
1505 if (rel->r_addend == 2)
1506 {
1507 h->plt.offset |= 1;
1508 }
1509 else if (rel->r_addend != 0)
1510 _bfd_error_handler
1511 /* xgettext:c-format */
1512 (_("%s: warning: PLT addend of %d to `%s' from %s section ignored"),
1513 bfd_get_filename (input_bfd), rel->r_addend,
1514 h->root.root.string,
1515 bfd_get_section_name (input_bfd, input_section));
1516 rel->r_addend = 0;
1517
1518 break;
1519
1520 case R_VAX_PC8:
1521 case R_VAX_PC16:
1522 r_vax_pc32_shared:
1523 if (h == NULL
1524 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1525 || h->forced_local)
1526 break;
1527 /* Fall through. */
1528 case R_VAX_8:
1529 case R_VAX_16:
1530 case R_VAX_32:
1531 if (bfd_link_pic (info)
1532 && r_symndx != STN_UNDEF
1533 && (input_section->flags & SEC_ALLOC) != 0
1534 && ((r_type != R_VAX_PC8
1535 && r_type != R_VAX_PC16
1536 && r_type != R_VAX_PC32)
1537 || ((input_section->flags & SEC_CODE)
1538 && (!info->symbolic
1539 || (!h->def_regular && h->type != STT_SECTION)))))
1540 {
1541 Elf_Internal_Rela outrel;
1542 bfd_byte *loc;
1543 bfd_boolean skip, relocate;
1544
1545 /* When generating a shared object, these relocations
1546 are copied into the output file to be resolved at run
1547 time. */
1548 if (sreloc == NULL)
1549 {
1550 sreloc = _bfd_elf_get_dynamic_reloc_section
1551 (input_bfd, input_section, /*rela?*/ TRUE);
1552 if (sreloc == NULL)
1553 return FALSE;
1554 }
1555
1556 skip = FALSE;
1557 relocate = FALSE;
1558
1559 outrel.r_offset =
1560 _bfd_elf_section_offset (output_bfd, info, input_section,
1561 rel->r_offset);
1562 if (outrel.r_offset == (bfd_vma) -1)
1563 skip = TRUE;
1564 if (outrel.r_offset == (bfd_vma) -2)
1565 skip = TRUE, relocate = TRUE;
1566 outrel.r_offset += (input_section->output_section->vma
1567 + input_section->output_offset);
1568
1569 if (skip)
1570 memset (&outrel, 0, sizeof outrel);
1571 /* h->dynindx may be -1 if the symbol was marked to
1572 become local. */
1573 else if (h != NULL
1574 && ((! info->symbolic && h->dynindx != -1)
1575 || !h->def_regular))
1576 {
1577 BFD_ASSERT (h->dynindx != -1);
1578 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1579 outrel.r_addend = relocation + rel->r_addend;
1580 }
1581 else
1582 {
1583 if (r_type == R_VAX_32)
1584 {
1585 relocate = TRUE;
1586 outrel.r_info = ELF32_R_INFO (0, R_VAX_RELATIVE);
1587 BFD_ASSERT (bfd_get_signed_32 (input_bfd,
1588 &contents[rel->r_offset]) == 0);
1589 outrel.r_addend = relocation + rel->r_addend;
1590 }
1591 else
1592 {
1593 long indx;
1594
1595 if (bfd_is_abs_section (sec))
1596 indx = 0;
1597 else if (sec == NULL || sec->owner == NULL)
1598 {
1599 bfd_set_error (bfd_error_bad_value);
1600 return FALSE;
1601 }
1602 else
1603 {
1604 asection *osec;
1605
1606 /* We are turning this relocation into one
1607 against a section symbol. It would be
1608 proper to subtract the symbol's value,
1609 osec->vma, from the emitted reloc addend,
1610 but ld.so expects buggy relocs. */
1611 osec = sec->output_section;
1612 indx = elf_section_data (osec)->dynindx;
1613 if (indx == 0)
1614 {
1615 struct elf_link_hash_table *htab;
1616 htab = elf_hash_table (info);
1617 osec = htab->text_index_section;
1618 indx = elf_section_data (osec)->dynindx;
1619 }
1620 BFD_ASSERT (indx != 0);
1621 }
1622
1623 outrel.r_info = ELF32_R_INFO (indx, r_type);
1624 outrel.r_addend = relocation + rel->r_addend;
1625 }
1626 }
1627
1628 if ((input_section->flags & SEC_CODE) != 0
1629 || (ELF32_R_TYPE (outrel.r_info) != R_VAX_32
1630 && ELF32_R_TYPE (outrel.r_info) != R_VAX_RELATIVE
1631 && ELF32_R_TYPE (outrel.r_info) != R_VAX_COPY
1632 && ELF32_R_TYPE (outrel.r_info) != R_VAX_JMP_SLOT
1633 && ELF32_R_TYPE (outrel.r_info) != R_VAX_GLOB_DAT))
1634 {
1635 if (h != NULL)
1636 _bfd_error_handler
1637 /* xgettext:c-format */
1638 (_("%s: warning: %s relocation against symbol `%s' from %s section"),
1639 bfd_get_filename (input_bfd), howto->name,
1640 h->root.root.string,
1641 bfd_get_section_name (input_bfd, input_section));
1642 else
1643 _bfd_error_handler
1644 /* xgettext:c-format */
1645 (_("%s: warning: %s relocation to 0x%x from %s section"),
1646 bfd_get_filename (input_bfd), howto->name,
1647 outrel.r_addend,
1648 bfd_get_section_name (input_bfd, input_section));
1649 }
1650 loc = sreloc->contents;
1651 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1652 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1653
1654 /* This reloc will be computed at runtime, so there's no
1655 need to do anything now, except for R_VAX_32
1656 relocations that have been turned into
1657 R_VAX_RELATIVE. */
1658 if (!relocate)
1659 continue;
1660 }
1661
1662 break;
1663
1664 case R_VAX_GNU_VTINHERIT:
1665 case R_VAX_GNU_VTENTRY:
1666 /* These are no-ops in the end. */
1667 continue;
1668
1669 default:
1670 break;
1671 }
1672
1673 /* VAX PCREL relocations are from the end of relocation, not the start.
1674 So subtract the difference from the relocation amount since we can't
1675 add it to the offset. */
1676 if (howto->pc_relative && howto->pcrel_offset)
1677 relocation -= bfd_get_reloc_size(howto);
1678
1679 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
1680 contents, rel->r_offset,
1681 relocation, rel->r_addend);
1682
1683 if (r != bfd_reloc_ok)
1684 {
1685 switch (r)
1686 {
1687 default:
1688 case bfd_reloc_outofrange:
1689 abort ();
1690 case bfd_reloc_overflow:
1691 {
1692 const char *name;
1693
1694 if (h != NULL)
1695 name = NULL;
1696 else
1697 {
1698 name = bfd_elf_string_from_elf_section (input_bfd,
1699 symtab_hdr->sh_link,
1700 sym->st_name);
1701 if (name == NULL)
1702 return FALSE;
1703 if (*name == '\0')
1704 name = bfd_section_name (input_bfd, sec);
1705 }
1706 info->callbacks->reloc_overflow
1707 (info, (h ? &h->root : NULL), name, howto->name,
1708 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1709 }
1710 break;
1711 }
1712 }
1713 }
1714
1715 return TRUE;
1716 }
1717
1718 /* Finish up dynamic symbol handling. We set the contents of various
1719 dynamic sections here. */
1720
1721 static bfd_boolean
1722 elf_vax_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
1723 struct elf_link_hash_entry *h,
1724 Elf_Internal_Sym *sym)
1725 {
1726 bfd *dynobj;
1727
1728 dynobj = elf_hash_table (info)->dynobj;
1729
1730 if (h->plt.offset != (bfd_vma) -1)
1731 {
1732 asection *splt;
1733 asection *sgot;
1734 asection *srela;
1735 bfd_vma plt_index;
1736 bfd_vma got_offset;
1737 bfd_vma addend;
1738 Elf_Internal_Rela rela;
1739 bfd_byte *loc;
1740
1741 /* This symbol has an entry in the procedure linkage table. Set
1742 it up. */
1743 BFD_ASSERT (h->dynindx != -1);
1744
1745 splt = elf_hash_table (info)->splt;
1746 sgot = elf_hash_table (info)->sgotplt;
1747 srela = elf_hash_table (info)->srelplt;
1748 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1749
1750 addend = 2 * (h->plt.offset & 1);
1751 h->plt.offset &= ~1;
1752
1753 /* Get the index in the procedure linkage table which
1754 corresponds to this symbol. This is the index of this symbol
1755 in all the symbols for which we are making plt entries. The
1756 first entry in the procedure linkage table is reserved. */
1757 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1758
1759 /* Get the offset into the .got table of the entry that
1760 corresponds to this function. Each .got entry is 4 bytes.
1761 The first two are reserved. */
1762 got_offset = (plt_index + 3) * 4;
1763
1764 /* Fill in the entry in the procedure linkage table. */
1765 memcpy (splt->contents + h->plt.offset, elf_vax_plt_entry,
1766 PLT_ENTRY_SIZE);
1767
1768 /* The offset is relative to the first extension word. */
1769 bfd_put_32 (output_bfd,
1770 -(h->plt.offset + 8),
1771 splt->contents + h->plt.offset + 4);
1772
1773 bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
1774 splt->contents + h->plt.offset + 8);
1775
1776 /* Fill in the entry in the global offset table. */
1777 bfd_put_32 (output_bfd,
1778 (splt->output_section->vma
1779 + splt->output_offset
1780 + h->plt.offset) + addend,
1781 sgot->contents + got_offset);
1782
1783 /* Fill in the entry in the .rela.plt section. */
1784 rela.r_offset = (sgot->output_section->vma
1785 + sgot->output_offset
1786 + got_offset);
1787 rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_JMP_SLOT);
1788 rela.r_addend = addend;
1789 loc = srela->contents + plt_index * sizeof (Elf32_External_Rela);
1790 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1791
1792 if (!h->def_regular)
1793 {
1794 /* Mark the symbol as undefined, rather than as defined in
1795 the .plt section. Leave the value alone. */
1796 sym->st_shndx = SHN_UNDEF;
1797 }
1798 }
1799
1800 if (h->got.offset != (bfd_vma) -1)
1801 {
1802 asection *sgot;
1803 asection *srela;
1804 Elf_Internal_Rela rela;
1805 bfd_byte *loc;
1806
1807 /* This symbol has an entry in the global offset table. Set it
1808 up. */
1809 sgot = elf_hash_table (info)->sgot;
1810 srela = elf_hash_table (info)->srelgot;
1811 BFD_ASSERT (sgot != NULL && srela != NULL);
1812
1813 rela.r_offset = (sgot->output_section->vma
1814 + sgot->output_offset
1815 + h->got.offset);
1816 rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_GLOB_DAT);
1817 rela.r_addend = bfd_get_signed_32 (output_bfd,
1818 sgot->contents + h->got.offset);
1819
1820 loc = srela->contents;
1821 loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
1822 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1823 }
1824
1825 if (h->needs_copy)
1826 {
1827 asection *s;
1828 Elf_Internal_Rela rela;
1829 bfd_byte *loc;
1830
1831 /* This symbol needs a copy reloc. Set it up. */
1832 BFD_ASSERT (h->dynindx != -1
1833 && (h->root.type == bfd_link_hash_defined
1834 || h->root.type == bfd_link_hash_defweak));
1835
1836 s = bfd_get_linker_section (dynobj, ".rela.bss");
1837 BFD_ASSERT (s != NULL);
1838
1839 rela.r_offset = (h->root.u.def.value
1840 + h->root.u.def.section->output_section->vma
1841 + h->root.u.def.section->output_offset);
1842 rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_COPY);
1843 rela.r_addend = 0;
1844 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
1845 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1846 }
1847
1848 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1849 if (h == elf_hash_table (info)->hdynamic
1850 || h == elf_hash_table (info)->hgot)
1851 sym->st_shndx = SHN_ABS;
1852
1853 return TRUE;
1854 }
1855
1856 /* Finish up the dynamic sections. */
1857
1858 static bfd_boolean
1859 elf_vax_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
1860 {
1861 bfd *dynobj;
1862 asection *sgot;
1863 asection *sdyn;
1864
1865 dynobj = elf_hash_table (info)->dynobj;
1866
1867 sgot = elf_hash_table (info)->sgotplt;
1868 BFD_ASSERT (sgot != NULL);
1869 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
1870
1871 if (elf_hash_table (info)->dynamic_sections_created)
1872 {
1873 asection *splt;
1874 Elf32_External_Dyn *dyncon, *dynconend;
1875
1876 splt = elf_hash_table (info)->splt;
1877 BFD_ASSERT (splt != NULL && sdyn != NULL);
1878
1879 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1880 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1881 for (; dyncon < dynconend; dyncon++)
1882 {
1883 Elf_Internal_Dyn dyn;
1884 asection *s;
1885
1886 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1887
1888 switch (dyn.d_tag)
1889 {
1890 default:
1891 break;
1892
1893 case DT_PLTGOT:
1894 s = elf_hash_table (info)->sgotplt;
1895 goto get_vma;
1896 case DT_JMPREL:
1897 s = elf_hash_table (info)->srelplt;
1898 get_vma:
1899 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1900 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1901 break;
1902
1903 case DT_PLTRELSZ:
1904 s = elf_hash_table (info)->srelplt;
1905 dyn.d_un.d_val = s->size;
1906 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1907 break;
1908 }
1909 }
1910
1911 /* Fill in the first entry in the procedure linkage table. */
1912 if (splt->size > 0)
1913 {
1914 memcpy (splt->contents, elf_vax_plt0_entry, PLT_ENTRY_SIZE);
1915 bfd_put_32 (output_bfd,
1916 (sgot->output_section->vma
1917 + sgot->output_offset + 4
1918 - (splt->output_section->vma + 6)),
1919 splt->contents + 2);
1920 bfd_put_32 (output_bfd,
1921 (sgot->output_section->vma
1922 + sgot->output_offset + 8
1923 - (splt->output_section->vma + 12)),
1924 splt->contents + 8);
1925 elf_section_data (splt->output_section)->this_hdr.sh_entsize
1926 = PLT_ENTRY_SIZE;
1927 }
1928 }
1929
1930 /* Fill in the first three entries in the global offset table. */
1931 if (sgot->size > 0)
1932 {
1933 if (sdyn == NULL)
1934 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1935 else
1936 bfd_put_32 (output_bfd,
1937 sdyn->output_section->vma + sdyn->output_offset,
1938 sgot->contents);
1939 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1940 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1941 }
1942
1943 if (elf_section_data (sgot->output_section) != NULL)
1944 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1945
1946 return TRUE;
1947 }
1948
1949 static enum elf_reloc_type_class
1950 elf_vax_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1951 const asection *rel_sec ATTRIBUTE_UNUSED,
1952 const Elf_Internal_Rela *rela)
1953 {
1954 switch ((int) ELF32_R_TYPE (rela->r_info))
1955 {
1956 case R_VAX_RELATIVE:
1957 return reloc_class_relative;
1958 case R_VAX_JMP_SLOT:
1959 return reloc_class_plt;
1960 case R_VAX_COPY:
1961 return reloc_class_copy;
1962 default:
1963 return reloc_class_normal;
1964 }
1965 }
1966
1967 static bfd_vma
1968 elf_vax_plt_sym_val (bfd_vma i, const asection *plt,
1969 const arelent *rel ATTRIBUTE_UNUSED)
1970 {
1971 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
1972 }
1973
1974 #define TARGET_LITTLE_SYM vax_elf32_vec
1975 #define TARGET_LITTLE_NAME "elf32-vax"
1976 #define ELF_MACHINE_CODE EM_VAX
1977 #define ELF_MAXPAGESIZE 0x1000
1978
1979 #define elf_backend_create_dynamic_sections \
1980 _bfd_elf_create_dynamic_sections
1981 #define bfd_elf32_bfd_link_hash_table_create \
1982 elf_vax_link_hash_table_create
1983 #define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
1984
1985 #define elf_backend_check_relocs elf_vax_check_relocs
1986 #define elf_backend_adjust_dynamic_symbol \
1987 elf_vax_adjust_dynamic_symbol
1988 #define elf_backend_always_size_sections \
1989 elf_vax_always_size_sections
1990 #define elf_backend_size_dynamic_sections \
1991 elf_vax_size_dynamic_sections
1992 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
1993 #define elf_backend_relocate_section elf_vax_relocate_section
1994 #define elf_backend_finish_dynamic_symbol \
1995 elf_vax_finish_dynamic_symbol
1996 #define elf_backend_finish_dynamic_sections \
1997 elf_vax_finish_dynamic_sections
1998 #define elf_backend_reloc_type_class elf_vax_reloc_type_class
1999 #define elf_backend_gc_mark_hook elf_vax_gc_mark_hook
2000 #define elf_backend_gc_sweep_hook elf_vax_gc_sweep_hook
2001 #define elf_backend_plt_sym_val elf_vax_plt_sym_val
2002 #define bfd_elf32_bfd_merge_private_bfd_data \
2003 elf32_vax_merge_private_bfd_data
2004 #define bfd_elf32_bfd_set_private_flags \
2005 elf32_vax_set_private_flags
2006 #define bfd_elf32_bfd_print_private_bfd_data \
2007 elf32_vax_print_private_bfd_data
2008
2009 #define elf_backend_can_gc_sections 1
2010 #define elf_backend_want_got_plt 1
2011 #define elf_backend_plt_readonly 1
2012 #define elf_backend_want_plt_sym 0
2013 #define elf_backend_got_header_size 16
2014 #define elf_backend_rela_normal 1
2015 #define elf_backend_dtrel_excludes_plt 1
2016
2017 #include "elf32-target.h"
GDB Binutils - Deliverables
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