source: trunk/src/binutils/bfd/elf32-cris.c@ 402

Last change on this file since 402 was 10, checked in by bird, 23 years ago

Initial revision
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Line 
1/* CRIS-specific support for 32-bit ELF.
2 Copyright 2000, 2001 Free Software Foundation, Inc.
3 Contributed by Axis Communications AB.
4 Written by Hans-Peter Nilsson, based on elf32-fr30.c
5
6This file is part of BFD, the Binary File Descriptor library.
7
8This program is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2 of the License, or
11(at your option) any later version.
12
13This program is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program; if not, write to the Free Software
20Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21
22#include "bfd.h"
23#include "sysdep.h"
24#include "libbfd.h"
25#include "elf-bfd.h"
26#include "elf/cris.h"
27
28/* Forward declarations. */
29static reloc_howto_type * cris_reloc_type_lookup
30 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
31
32static void cris_info_to_howto_rela
33 PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
34
35static boolean cris_elf_relocate_section
36 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
37 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
38
39static bfd_reloc_status_type cris_final_link_relocate
40 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
41 Elf_Internal_Rela *, bfd_vma));
42
43static boolean cris_elf_gc_sweep_hook
44 PARAMS ((bfd *, struct bfd_link_info *, asection *,
45 const Elf_Internal_Rela *));
46
47static asection * cris_elf_gc_mark_hook
48 PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
49 struct elf_link_hash_entry *, Elf_Internal_Sym *));
50
51static boolean cris_elf_object_p PARAMS ((bfd *));
52
53static void cris_elf_final_write_processing PARAMS ((bfd *, boolean));
54
55static boolean cris_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
56
57static boolean cris_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
58
59static reloc_howto_type cris_elf_howto_table [] =
60{
61 /* This reloc does nothing. */
62 HOWTO (R_CRIS_NONE, /* type */
63 0, /* rightshift */
64 2, /* size (0 = byte, 1 = short, 2 = long) */
65 32, /* bitsize */
66 false, /* pc_relative */
67 0, /* bitpos */
68 complain_overflow_bitfield, /* complain_on_overflow */
69 bfd_elf_generic_reloc, /* special_function */
70 "R_CRIS_NONE", /* name */
71 false, /* partial_inplace */
72 0, /* src_mask */
73 0, /* dst_mask */
74 false), /* pcrel_offset */
75
76 /* An 8 bit absolute relocation. */
77 HOWTO (R_CRIS_8, /* type */
78 0, /* rightshift */
79 0, /* size (0 = byte, 1 = short, 2 = long) */
80 8, /* bitsize */
81 false, /* pc_relative */
82 0, /* bitpos */
83 complain_overflow_bitfield, /* complain_on_overflow */
84 bfd_elf_generic_reloc, /* special_function */
85 "R_CRIS_8", /* name */
86 false, /* partial_inplace */
87 0x0000, /* src_mask */
88 0x00ff, /* dst_mask */
89 false), /* pcrel_offset */
90
91 /* A 16 bit absolute relocation. */
92 HOWTO (R_CRIS_16, /* type */
93 0, /* rightshift */
94 1, /* size (0 = byte, 1 = short, 2 = long) */
95 16, /* bitsize */
96 false, /* pc_relative */
97 0, /* bitpos */
98 complain_overflow_bitfield, /* complain_on_overflow */
99 bfd_elf_generic_reloc, /* special_function */
100 "R_CRIS_16", /* name */
101 false, /* partial_inplace */
102 0x00000000, /* src_mask */
103 0x0000ffff, /* dst_mask */
104 false), /* pcrel_offset */
105
106 /* A 32 bit absolute relocation. */
107 HOWTO (R_CRIS_32, /* type */
108 0, /* rightshift */
109 2, /* size (0 = byte, 1 = short, 2 = long) */
110 32, /* bitsize */
111 false, /* pc_relative */
112 0, /* bitpos */
113 complain_overflow_bitfield, /* complain_on_overflow */
114 bfd_elf_generic_reloc, /* special_function */
115 "R_CRIS_32", /* name */
116 false, /* partial_inplace */
117 0x00000000, /* src_mask */
118 0xffffffff, /* dst_mask */
119 false), /* pcrel_offset */
120
121 /* An 8 bit absolute relocation. */
122 HOWTO (R_CRIS_8_PCREL, /* type */
123 0, /* rightshift */
124 0, /* size (0 = byte, 1 = short, 2 = long) */
125 8, /* bitsize */
126 true, /* pc_relative */
127 0, /* bitpos */
128 complain_overflow_bitfield, /* complain_on_overflow */
129 bfd_elf_generic_reloc, /* special_function */
130 "R_CRIS_8_PCREL", /* name */
131 false, /* partial_inplace */
132 0x0000, /* src_mask */
133 0x00ff, /* dst_mask */
134 false), /* pcrel_offset */
135
136 /* A 16 bit absolute relocation. */
137 HOWTO (R_CRIS_16_PCREL, /* type */
138 0, /* rightshift */
139 1, /* size (0 = byte, 1 = short, 2 = long) */
140 16, /* bitsize */
141 true, /* pc_relative */
142 0, /* bitpos */
143 complain_overflow_bitfield, /* complain_on_overflow */
144 bfd_elf_generic_reloc, /* special_function */
145 "R_CRIS_16", /* name */
146 false, /* partial_inplace */
147 0x00000000, /* src_mask */
148 0x0000ffff, /* dst_mask */
149 false), /* pcrel_offset */
150
151 /* A 32 bit absolute relocation. */
152 HOWTO (R_CRIS_32_PCREL, /* type */
153 0, /* rightshift */
154 2, /* size (0 = byte, 1 = short, 2 = long) */
155 32, /* bitsize */
156 true, /* pc_relative */
157 0, /* bitpos */
158 complain_overflow_bitfield, /* complain_on_overflow */
159 bfd_elf_generic_reloc, /* special_function */
160 "R_CRIS_32", /* name */
161 false, /* partial_inplace */
162 0x00000000, /* src_mask */
163 0xffffffff, /* dst_mask */
164 false), /* pcrel_offset */
165
166 /* GNU extension to record C++ vtable hierarchy */
167 HOWTO (R_CRIS_GNU_VTINHERIT, /* type */
168 0, /* rightshift */
169 2, /* size (0 = byte, 1 = short, 2 = long) */
170 0, /* bitsize */
171 false, /* pc_relative */
172 0, /* bitpos */
173 complain_overflow_dont, /* complain_on_overflow */
174 NULL, /* special_function */
175 "R_CRIS_GNU_VTINHERIT", /* name */
176 false, /* partial_inplace */
177 0, /* src_mask */
178 0, /* dst_mask */
179 false), /* pcrel_offset */
180
181 /* GNU extension to record C++ vtable member usage */
182 HOWTO (R_CRIS_GNU_VTENTRY, /* type */
183 0, /* rightshift */
184 2, /* size (0 = byte, 1 = short, 2 = long) */
185 0, /* bitsize */
186 false, /* pc_relative */
187 0, /* bitpos */
188 complain_overflow_dont, /* complain_on_overflow */
189 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
190 "R_CRIS_GNU_VTENTRY", /* name */
191 false, /* partial_inplace */
192 0, /* src_mask */
193 0, /* dst_mask */
194 false) /* pcrel_offset */
195};
196
197
198/* Map BFD reloc types to CRIS ELF reloc types. */
199
200struct cris_reloc_map
201{
202 bfd_reloc_code_real_type bfd_reloc_val;
203 unsigned int cris_reloc_val;
204};
205
206static const struct cris_reloc_map cris_reloc_map [] =
207{
208 { BFD_RELOC_NONE, R_CRIS_NONE },
209 { BFD_RELOC_8, R_CRIS_8 },
210 { BFD_RELOC_16, R_CRIS_16 },
211 { BFD_RELOC_32, R_CRIS_32 },
212 { BFD_RELOC_8_PCREL, R_CRIS_8_PCREL },
213 { BFD_RELOC_16_PCREL, R_CRIS_16_PCREL },
214 { BFD_RELOC_32_PCREL, R_CRIS_32_PCREL },
215 { BFD_RELOC_VTABLE_INHERIT, R_CRIS_GNU_VTINHERIT },
216 { BFD_RELOC_VTABLE_ENTRY, R_CRIS_GNU_VTENTRY }
217};
218
219static reloc_howto_type *
220cris_reloc_type_lookup (abfd, code)
221 bfd * abfd ATTRIBUTE_UNUSED;
222 bfd_reloc_code_real_type code;
223{
224 unsigned int i;
225
226 for (i = sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]);
227 --i;)
228 if (cris_reloc_map [i].bfd_reloc_val == code)
229 return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val];
230
231 return NULL;
232}
233
234/* Set the howto pointer for an CRIS ELF reloc. */
235
236static void
237cris_info_to_howto_rela (abfd, cache_ptr, dst)
238 bfd * abfd ATTRIBUTE_UNUSED;
239 arelent * cache_ptr;
240 Elf32_Internal_Rela * dst;
241{
242 unsigned int r_type;
243
244 r_type = ELF32_R_TYPE (dst->r_info);
245 BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
246 cache_ptr->howto = & cris_elf_howto_table [r_type];
247}
248
249
250/* Perform a single relocation. By default we use the standard BFD
251 routines, but we might have to do a few relocs ourselves in the future. */
252
253static bfd_reloc_status_type
254cris_final_link_relocate (howto, input_bfd, input_section, contents, rel,
255 relocation)
256 reloc_howto_type * howto;
257 bfd * input_bfd;
258 asection * input_section;
259 bfd_byte * contents;
260 Elf_Internal_Rela * rel;
261 bfd_vma relocation;
262{
263 bfd_reloc_status_type r
264 = _bfd_final_link_relocate (howto, input_bfd, input_section,
265 contents, rel->r_offset,
266 relocation, rel->r_addend);
267 return r;
268}
269
270
271/* Relocate an CRIS ELF section. See elf32-fr30.c, from where this was
272 copied, for further comments. */
273
274static boolean
275cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
276 contents, relocs, local_syms, local_sections)
277 bfd * output_bfd ATTRIBUTE_UNUSED;
278 struct bfd_link_info * info;
279 bfd * input_bfd;
280 asection * input_section;
281 bfd_byte * contents;
282 Elf_Internal_Rela * relocs;
283 Elf_Internal_Sym * local_syms;
284 asection ** local_sections;
285{
286 Elf_Internal_Shdr * symtab_hdr;
287 struct elf_link_hash_entry ** sym_hashes;
288 Elf_Internal_Rela * rel;
289 Elf_Internal_Rela * relend;
290
291 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
292 sym_hashes = elf_sym_hashes (input_bfd);
293 relend = relocs + input_section->reloc_count;
294
295 /* It seems this can happen with erroneous or unsupported input (mixing
296 a.out and elf in an archive, for example.) */
297 if (sym_hashes == NULL)
298 return false;
299
300 for (rel = relocs; rel < relend; rel ++)
301 {
302 reloc_howto_type * howto;
303 unsigned long r_symndx;
304 Elf_Internal_Sym * sym;
305 asection * sec;
306 struct elf_link_hash_entry * h;
307 bfd_vma relocation;
308 bfd_reloc_status_type r;
309 const char * name = NULL;
310 int r_type;
311
312 r_type = ELF32_R_TYPE (rel->r_info);
313
314 if ( r_type == R_CRIS_GNU_VTINHERIT
315 || r_type == R_CRIS_GNU_VTENTRY)
316 continue;
317
318 r_symndx = ELF32_R_SYM (rel->r_info);
319
320 if (info->relocateable)
321 {
322 /* This is a relocateable link. We don't have to change
323 anything, unless the reloc is against a section symbol,
324 in which case we have to adjust according to where the
325 section symbol winds up in the output section. */
326 if (r_symndx < symtab_hdr->sh_info)
327 {
328 sym = local_syms + r_symndx;
329
330 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
331 {
332 sec = local_sections [r_symndx];
333 rel->r_addend += sec->output_offset + sym->st_value;
334 }
335 }
336
337 continue;
338 }
339
340 /* This is a final link. */
341 howto = cris_elf_howto_table + ELF32_R_TYPE (rel->r_info);
342 h = NULL;
343 sym = NULL;
344 sec = NULL;
345
346 if (r_symndx < symtab_hdr->sh_info)
347 {
348 sym = local_syms + r_symndx;
349 sec = local_sections [r_symndx];
350 relocation = (sec->output_section->vma
351 + sec->output_offset
352 + sym->st_value);
353
354 name = bfd_elf_string_from_elf_section
355 (input_bfd, symtab_hdr->sh_link, sym->st_name);
356 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
357#if 0
358 fprintf (stderr, "local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
359 sec->name, name, sym->st_name,
360 sec->output_section->vma, sec->output_offset,
361 sym->st_value, rel->r_addend);
362#endif
363 }
364 else
365 {
366 h = sym_hashes [r_symndx - symtab_hdr->sh_info];
367
368 while (h->root.type == bfd_link_hash_indirect
369 || h->root.type == bfd_link_hash_warning)
370 h = (struct elf_link_hash_entry *) h->root.u.i.link;
371
372 name = h->root.root.string;
373
374 if (h->root.type == bfd_link_hash_defined
375 || h->root.type == bfd_link_hash_defweak)
376 {
377 sec = h->root.u.def.section;
378 relocation = (h->root.u.def.value
379 + sec->output_section->vma
380 + sec->output_offset);
381#if 0
382 fprintf (stderr,
383 "defined: sec: %s, name: %s, value: %x + %x + %x gives: %x\n",
384 sec->name, name, h->root.u.def.value,
385 sec->output_section->vma, sec->output_offset, relocation);
386#endif
387 }
388 else if (h->root.type == bfd_link_hash_undefweak)
389 {
390#if 0
391 fprintf (stderr, "undefined: sec: %s, name: %s\n",
392 sec->name, name);
393#endif
394 relocation = 0;
395 }
396 else if (info->shared
397 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
398 relocation = 0;
399 else
400 {
401 if (! ((*info->callbacks->undefined_symbol)
402 (info, h->root.root.string, input_bfd,
403 input_section, rel->r_offset, true)))
404 return false;
405#if 0
406 fprintf (stderr, "unknown: name: %s\n", name);
407#endif
408 relocation = 0;
409 }
410 }
411
412 r = cris_final_link_relocate (howto, input_bfd, input_section,
413 contents, rel, relocation);
414
415 if (r != bfd_reloc_ok)
416 {
417 const char * msg = (const char *) NULL;
418
419 switch (r)
420 {
421 case bfd_reloc_overflow:
422 r = info->callbacks->reloc_overflow
423 (info, name, howto->name, (bfd_vma) 0,
424 input_bfd, input_section, rel->r_offset);
425 break;
426
427 case bfd_reloc_undefined:
428 r = info->callbacks->undefined_symbol
429 (info, name, input_bfd, input_section, rel->r_offset,
430 true);
431 break;
432
433 case bfd_reloc_outofrange:
434 msg = _("internal error: out of range error");
435 break;
436
437 case bfd_reloc_notsupported:
438 msg = _("internal error: unsupported relocation error");
439 break;
440
441 case bfd_reloc_dangerous:
442 msg = _("internal error: dangerous relocation");
443 break;
444
445 default:
446 msg = _("internal error: unknown error");
447 break;
448 }
449
450 if (msg)
451 r = info->callbacks->warning
452 (info, msg, name, input_bfd, input_section, rel->r_offset);
453
454 if (! r)
455 return false;
456 }
457 }
458
459 return true;
460}
461
462
463/* Return the section that should be marked against GC for a given
464 relocation. */
465
466static asection *
467cris_elf_gc_mark_hook (abfd, info, rel, h, sym)
468 bfd * abfd;
469 struct bfd_link_info * info ATTRIBUTE_UNUSED;
470 Elf_Internal_Rela * rel;
471 struct elf_link_hash_entry * h;
472 Elf_Internal_Sym * sym;
473{
474 if (h != NULL)
475 {
476 switch (ELF32_R_TYPE (rel->r_info))
477 {
478 case R_CRIS_GNU_VTINHERIT:
479 case R_CRIS_GNU_VTENTRY:
480 break;
481
482 default:
483 switch (h->root.type)
484 {
485 case bfd_link_hash_defined:
486 case bfd_link_hash_defweak:
487 return h->root.u.def.section;
488
489 case bfd_link_hash_common:
490 return h->root.u.c.p->section;
491
492 default:
493 break;
494 }
495 }
496 }
497 else
498 {
499 if (!(elf_bad_symtab (abfd)
500 && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
501 && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
502 && sym->st_shndx != SHN_COMMON))
503 {
504 return bfd_section_from_elf_index (abfd, sym->st_shndx);
505 }
506 }
507
508 return NULL;
509}
510
511/* Update the got entry reference counts for the section being removed. */
512
513static boolean
514cris_elf_gc_sweep_hook (abfd, info, sec, relocs)
515 bfd * abfd ATTRIBUTE_UNUSED;
516 struct bfd_link_info * info ATTRIBUTE_UNUSED;
517 asection * sec ATTRIBUTE_UNUSED;
518 const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED;
519{
520 return true;
521}
522
523/* Look through the relocs for a section during the first phase.
524 Since we don't do .gots or .plts, we just need to consider the
525 virtual table relocs for gc. */
526
527static boolean
528cris_elf_check_relocs (abfd, info, sec, relocs)
529 bfd *abfd;
530 struct bfd_link_info *info;
531 asection *sec;
532 const Elf_Internal_Rela *relocs;
533{
534 Elf_Internal_Shdr *symtab_hdr;
535 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
536 const Elf_Internal_Rela *rel;
537 const Elf_Internal_Rela *rel_end;
538
539 if (info->relocateable)
540 return true;
541
542 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
543 sym_hashes = elf_sym_hashes (abfd);
544 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
545 if (!elf_bad_symtab (abfd))
546 sym_hashes_end -= symtab_hdr->sh_info;
547
548 rel_end = relocs + sec->reloc_count;
549 for (rel = relocs; rel < rel_end; rel++)
550 {
551 struct elf_link_hash_entry *h;
552 unsigned long r_symndx;
553
554 r_symndx = ELF32_R_SYM (rel->r_info);
555 if (r_symndx < symtab_hdr->sh_info)
556 h = NULL;
557 else
558 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
559
560 switch (ELF32_R_TYPE (rel->r_info))
561 {
562 /* This relocation describes the C++ object vtable hierarchy.
563 Reconstruct it for later use during GC. */
564 case R_CRIS_GNU_VTINHERIT:
565 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
566 return false;
567 break;
568
569 /* This relocation describes which C++ vtable entries are actually
570 used. Record for later use during GC. */
571 case R_CRIS_GNU_VTENTRY:
572 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
573 return false;
574 break;
575 }
576 }
577
578 return true;
579}
580
581/* Reject a file depending on underscores on symbols. */
582
583static boolean
584cris_elf_object_p (abfd)
585 bfd *abfd;
586{
587 if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
588 return (bfd_get_symbol_leading_char (abfd) == '_');
589 else
590 return (bfd_get_symbol_leading_char (abfd) == 0);
591}
592
593/* Mark presence or absence of leading underscore. */
594
595static void
596cris_elf_final_write_processing (abfd, linker)
597 bfd *abfd;
598 boolean linker ATTRIBUTE_UNUSED;
599{
600 if (bfd_get_symbol_leading_char (abfd) == '_')
601 elf_elfheader (abfd)->e_flags |= EF_CRIS_UNDERSCORE;
602 else
603 elf_elfheader (abfd)->e_flags &= ~EF_CRIS_UNDERSCORE;
604}
605
606/* Display the flags field. */
607
608static boolean
609cris_elf_print_private_bfd_data (abfd, ptr)
610 bfd *abfd;
611 PTR ptr;
612{
613 FILE *file = (FILE *) ptr;
614
615 BFD_ASSERT (abfd != NULL && ptr != NULL)
616
617 _bfd_elf_print_private_bfd_data (abfd, ptr);
618
619 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
620
621 if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
622 fprintf (file, _(" [symbols have a _ prefix]"));
623
624 fputc ('\n', file);
625 return true;
626}
627
628/* Don't mix files with and without a leading underscore. */
629
630static boolean
631cris_elf_merge_private_bfd_data (ibfd, obfd)
632 bfd *ibfd;
633 bfd *obfd;
634{
635 flagword old_flags, new_flags;
636
637 if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
638 return false;
639
640 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
641 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
642 return true;
643
644 if (! elf_flags_init (obfd))
645 {
646 /* This happens when ld starts out with a 'blank' output file. */
647 elf_flags_init (obfd) = true;
648
649 /* Set flags according to current bfd_target. */
650 cris_elf_final_write_processing (obfd, false);
651 }
652
653 old_flags = elf_elfheader (obfd)->e_flags;
654 new_flags = elf_elfheader (ibfd)->e_flags;
655
656 /* Is this good or bad? We'll follow with other excluding flags. */
657 if ((old_flags & EF_CRIS_UNDERSCORE) != (new_flags & EF_CRIS_UNDERSCORE))
658 {
659 (*_bfd_error_handler)
660 ((new_flags & EF_CRIS_UNDERSCORE)
661 ? _("%s: uses _-prefixed symbols, but writing file with non-prefixed symbols")
662 : _("%s: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
663 bfd_get_filename (ibfd));
664 bfd_set_error (bfd_error_bad_value);
665 return false;
666 }
667
668 return true;
669}
670
671
672#define ELF_ARCH bfd_arch_cris
673#define ELF_MACHINE_CODE EM_CRIS
674#define ELF_MAXPAGESIZE 0x2000
675
676#define TARGET_LITTLE_SYM bfd_elf32_cris_vec
677#define TARGET_LITTLE_NAME "elf32-cris"
678#define elf_symbol_leading_char 0
679
680#define elf_info_to_howto_rel NULL
681#define elf_info_to_howto cris_info_to_howto_rela
682#define elf_backend_relocate_section cris_elf_relocate_section
683#define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
684#define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
685#define elf_backend_check_relocs cris_elf_check_relocs
686
687#define elf_backend_can_gc_sections 1
688
689#define elf_backend_object_p cris_elf_object_p
690#define elf_backend_final_write_processing \
691 cris_elf_final_write_processing
692#define bfd_elf32_bfd_print_private_bfd_data \
693 cris_elf_print_private_bfd_data
694#define bfd_elf32_bfd_merge_private_bfd_data \
695 cris_elf_merge_private_bfd_data
696
697#define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
698
699/* Later, we my want to optimize RELA entries into REL entries for dynamic
700 linking and libraries (if it's a win of any significance). Until then,
701 take the easy route. */
702#define elf_backend_may_use_rel_p 0
703#define elf_backend_may_use_rela_p 1
704
705#include "elf32-target.h"
706
707#define INCLUDED_TARGET_FILE
708
709#undef TARGET_LITTLE_SYM
710#undef TARGET_LITTLE_NAME
711#undef elf_symbol_leading_char
712
713#define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
714#define TARGET_LITTLE_NAME "elf32-us-cris"
715#define elf_symbol_leading_char '_'
716
717#include "elf32-target.h"
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