aboutsummaryrefslogtreecommitdiff
path: root/ld/emultempl/ppc64elf.em
blob: cf75957fa9cc987eeea614079bf2970f5f5de155 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
# This shell script emits a C file. -*- C -*-
# Copyright (C) 2002-2017 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
#

# This file is sourced from elf32.em, and defines extra powerpc64-elf
# specific routines.
#
fragment <<EOF

#include "ldctor.h"
#include "elf-bfd.h"
#include "elf64-ppc.h"
#include "ldlex.h"
#include "elf/ppc64.h"

static asection *ppc_add_stub_section (const char *, asection *);
static void ppc_layout_sections_again (void);

static struct ppc64_elf_params params = { NULL,
					  &ppc_add_stub_section,
					  &ppc_layout_sections_again,
					  1, -1, 0,
					  ${DEFAULT_PLT_STATIC_CHAIN-0}, -1, 5,
					  -1, 0, -1, -1, 0};

/* Fake input file for stubs.  */
static lang_input_statement_type *stub_file;

/* Whether we need to call ppc_layout_sections_again.  */
static int need_laying_out = 0;

/* Whether to add ".foo" entries for each "foo" in a version script.  */
static int dotsyms = 1;

/* Whether to run tls optimization.  */
static int no_tls_opt = 0;

/* Whether to run opd optimization.  */
static int no_opd_opt = 0;

/* Whether to run toc optimization.  */
static int no_toc_opt = 0;

/* Whether to sort input toc and got sections.  */
static int no_toc_sort = 0;

/* Input .toc sections will be placed in this output section.  */
static const char *toc_section_name = ".got";
static asection *toc_section = 0;

/* This is called before the input files are opened.  We create a new
   fake input file to hold the stub sections.  */

static void
ppc_create_output_section_statements (void)
{
  if (!(bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour
	&& elf_object_id (link_info.output_bfd) == PPC64_ELF_DATA))
    return;

  link_info.wrap_char = '.';

  stub_file = lang_add_input_file ("linker stubs",
				   lang_input_file_is_fake_enum,
				   NULL);
  stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd);
  if (stub_file->the_bfd == NULL
      || !bfd_set_arch_mach (stub_file->the_bfd,
			     bfd_get_arch (link_info.output_bfd),
			     bfd_get_mach (link_info.output_bfd)))
    {
      einfo ("%F%P: can not create BFD: %E\n");
      return;
    }

  stub_file->the_bfd->flags |= BFD_LINKER_CREATED;
  ldlang_add_file (stub_file);
  params.stub_bfd = stub_file->the_bfd;
  if (params.save_restore_funcs < 0)
    params.save_restore_funcs = !bfd_link_relocatable (&link_info);
  if (!ppc64_elf_init_stub_bfd (&link_info, &params))
    einfo ("%F%P: can not init BFD: %E\n");
}

/* Called after opening files but before mapping sections.  */

static void
ppc_after_open (void)
{
  if (stub_file != NULL && link_info.relro && params.object_in_toc)
    {
      /* We have a .toc section that might be written to at run time.
	 Don't put .toc into the .got output section.  */
      lang_output_section_statement_type *got;

      got = lang_output_section_find (".got");
      if (got != NULL)
	{
	  lang_statement_union_type *s;
	  for (s = got->children.head; s != NULL; s = s->header.next)
	    if (s->header.type == lang_wild_statement_enum
		&& s->wild_statement.filename == NULL)
	      {
		struct wildcard_list **i = &s->wild_statement.section_list;
		while (*i != NULL)
		  if (strcmp ((*i)->spec.name, ".toc") == 0)
		    *i = (*i)->next;
		  else
		    i = &(*i)->next;
	      }
	  /* Instead, .toc input sections will be mapped to the
	     read/write .toc output section.  If user scripts don't
	     provide one then we'll lose toc sorting and multi-toc.  */
	  toc_section_name = ".toc";
	}
    }
  gld${EMULATION_NAME}_after_open ();
}

/* Move the input section statement at *U which happens to be on LIST
   to be just before *TO.  */

static void
move_input_section (lang_statement_list_type *list,
		    lang_statement_union_type **u,
		    lang_statement_union_type **to)
{
  lang_statement_union_type *s = *u;
  asection *i = s->input_section.section;
  asection *p, *n;

  /* Snip the input section from the statement list.  If it was the
     last statement, fix the list tail pointer.  */
  *u = s->header.next;
  if (*u == NULL)
    list->tail = u;
  /* Add it back in the new position.  */
  s->header.next = *to;
  *to = s;
  if (list->tail == to)
    list->tail = &s->header.next;

  /* Trim I off the bfd map_head/map_tail doubly linked lists.  */
  n = i->map_head.s;
  p = i->map_tail.s;
  (p != NULL ? p : i->output_section)->map_head.s = n;
  (n != NULL ? n : i->output_section)->map_tail.s = p;

  /* Add I back on in its new position.  */
  if (s->header.next->header.type == lang_input_section_enum)
    {
      n = s->header.next->input_section.section;
      p = n->map_tail.s;
    }
  else
    {
      /* If the next statement is not an input section statement then
	 TO must point at the previous input section statement
	 header.next field.  */
      lang_input_section_type *prev = (lang_input_section_type *)
	((char *) to - offsetof (lang_statement_union_type, header.next));

      ASSERT (prev->header.type == lang_input_section_enum);
      p = prev->section;
      n = p->map_head.s;
    }
  i->map_head.s = n;
  i->map_tail.s = p;
  (p != NULL ? p : i->output_section)->map_head.s = i;
  (n != NULL ? n : i->output_section)->map_tail.s = i;
}

/* Sort input section statements in the linker script tree rooted at
   LIST so that those whose owning bfd happens to have a section
   called .init or .fini are placed first.  Place any TOC sections
   referenced by small TOC relocs next, with TOC sections referenced
   only by bigtoc relocs last.  */

static void
sort_toc_sections (lang_statement_list_type *list,
		   lang_statement_union_type **ini,
		   lang_statement_union_type **small)
{
  lang_statement_union_type *s, **u;
  asection *i;

  u = &list->head;
  while ((s = *u) != NULL)
    {
      switch (s->header.type)
	{
	case lang_wild_statement_enum:
	  sort_toc_sections (&s->wild_statement.children, ini, small);
	  break;

	case lang_group_statement_enum:
	  sort_toc_sections (&s->group_statement.children, ini, small);
	  break;

	case lang_input_section_enum:
	  i = s->input_section.section;
	  /* Leave the stub_file .got where it is.  We put the .got
	     header there.  */
	  if (i->owner == stub_file->the_bfd)
	    break;
	  if (bfd_get_section_by_name (i->owner, ".init") != NULL
	      || bfd_get_section_by_name (i->owner, ".fini") != NULL)
	    {
	      if (ini != NULL && *ini != s)
		{
		  move_input_section (list, u, ini);
		  if (small == ini)
		    small = &s->header.next;
		  ini = &s->header.next;
		  continue;
		}
	      if (small == ini)
		small = &s->header.next;
	      ini = &s->header.next;
	      break;
	    }
	  else if (ini == NULL)
	    ini = u;

	  if (ppc64_elf_has_small_toc_reloc (i))
	    {
	      if (small != NULL && *small != s)
		{
		  move_input_section (list, u, small);
		  small = &s->header.next;
		  continue;
		}
	      small = &s->header.next;
	    }
	  else if (small == NULL)
	    small = u;
	  break;

	default:
	  break;
	}
      u = &s->header.next;
    }
}

static void
prelim_size_sections (void)
{
  if (expld.phase != lang_mark_phase_enum)
    {
      expld.phase = lang_mark_phase_enum;
      expld.dataseg.phase = exp_dataseg_none;
      one_lang_size_sections_pass (NULL, FALSE);
      /* We must not cache anything from the preliminary sizing.  */
      lang_reset_memory_regions ();
    }
}

static void
ppc_before_allocation (void)
{
  if (stub_file != NULL)
    {
      if (!no_opd_opt
	  && !ppc64_elf_edit_opd (&link_info))
	einfo ("%X%P: can not edit %s: %E\n", "opd");

      if (ppc64_elf_tls_setup (&link_info)
	  && !no_tls_opt)
	{
	  /* Size the sections.  This is premature, but we want to know the
	     TLS segment layout so that certain optimizations can be done.  */
	  prelim_size_sections ();

	  if (!ppc64_elf_tls_optimize (&link_info))
	    einfo ("%X%P: TLS problem %E\n");
	}

      if (!no_toc_opt
	  && !bfd_link_relocatable (&link_info))
	{
	  prelim_size_sections ();

	  if (!ppc64_elf_edit_toc (&link_info))
	    einfo ("%X%P: can not edit %s: %E\n", "toc");
	}

      if (!no_toc_sort)
	{
	  lang_output_section_statement_type *toc_os;

	  toc_os = lang_output_section_find (toc_section_name);
	  if (toc_os != NULL)
	    sort_toc_sections (&toc_os->children, NULL, NULL);
	}
    }

  gld${EMULATION_NAME}_before_allocation ();
}

struct hook_stub_info
{
  lang_statement_list_type add;
  asection *input_section;
};

/* Traverse the linker tree to find the spot where the stub goes.  */

static bfd_boolean
hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp)
{
  lang_statement_union_type *l;
  bfd_boolean ret;

  for (; (l = *lp) != NULL; lp = &l->header.next)
    {
      switch (l->header.type)
	{
	case lang_constructors_statement_enum:
	  ret = hook_in_stub (info, &constructor_list.head);
	  if (ret)
	    return ret;
	  break;

	case lang_output_section_statement_enum:
	  ret = hook_in_stub (info,
			      &l->output_section_statement.children.head);
	  if (ret)
	    return ret;
	  break;

	case lang_wild_statement_enum:
	  ret = hook_in_stub (info, &l->wild_statement.children.head);
	  if (ret)
	    return ret;
	  break;

	case lang_group_statement_enum:
	  ret = hook_in_stub (info, &l->group_statement.children.head);
	  if (ret)
	    return ret;
	  break;

	case lang_input_section_enum:
	  if (l->input_section.section == info->input_section)
	    {
	      /* We've found our section.  Insert the stub immediately
		 before its associated input section.  */
	      *lp = info->add.head;
	      *(info->add.tail) = l;
	      return TRUE;
	    }
	  break;

	case lang_data_statement_enum:
	case lang_reloc_statement_enum:
	case lang_object_symbols_statement_enum:
	case lang_output_statement_enum:
	case lang_target_statement_enum:
	case lang_input_statement_enum:
	case lang_assignment_statement_enum:
	case lang_padding_statement_enum:
	case lang_address_statement_enum:
	case lang_fill_statement_enum:
	  break;

	default:
	  FAIL ();
	  break;
	}
    }
  return FALSE;
}


/* Call-back for ppc64_elf_size_stubs.  */

/* Create a new stub section, and arrange for it to be linked
   immediately before INPUT_SECTION.  */

static asection *
ppc_add_stub_section (const char *stub_sec_name, asection *input_section)
{
  asection *stub_sec;
  flagword flags;
  asection *output_section;
  lang_output_section_statement_type *os;
  struct hook_stub_info info;

  flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
	   | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_KEEP);
  stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
						 stub_sec_name, flags);
  if (stub_sec == NULL
      || !bfd_set_section_alignment (stub_file->the_bfd, stub_sec,
				     (params.plt_stub_align > 5
				      ? params.plt_stub_align
				      : 5)))
    goto err_ret;

  output_section = input_section->output_section;
  os = lang_output_section_get (output_section);

  info.input_section = input_section;
  lang_list_init (&info.add);
  lang_add_section (&info.add, stub_sec, NULL, os);

  if (info.add.head == NULL)
    goto err_ret;

  if (hook_in_stub (&info, &os->children.head))
    return stub_sec;

 err_ret:
  einfo ("%X%P: can not make stub section: %E\n");
  return NULL;
}


/* Another call-back for ppc64_elf_size_stubs.  */

static void
ppc_layout_sections_again (void)
{
  /* If we have changed sizes of the stub sections, then we need
     to recalculate all the section offsets.  This may mean we need to
     add even more stubs.  */
  gld${EMULATION_NAME}_map_segments (TRUE);

  if (!bfd_link_relocatable (&link_info))
    ppc64_elf_set_toc (&link_info, link_info.output_bfd);

  need_laying_out = -1;
}


static void
build_toc_list (lang_statement_union_type *statement)
{
  if (statement->header.type == lang_input_section_enum)
    {
      asection *i = statement->input_section.section;

      if (i->sec_info_type != SEC_INFO_TYPE_JUST_SYMS
	  && (i->flags & SEC_EXCLUDE) == 0
	  && i->output_section == toc_section)
	{
	  if (!ppc64_elf_next_toc_section (&link_info, i))
	    einfo ("%X%P: linker script separates .got and .toc\n");
	}
    }
}


static void
build_section_lists (lang_statement_union_type *statement)
{
  if (statement->header.type == lang_input_section_enum)
    {
      asection *i = statement->input_section.section;

      if (!((lang_input_statement_type *) i->owner->usrdata)->flags.just_syms
	  && (i->flags & SEC_EXCLUDE) == 0
	  && i->output_section != NULL
	  && i->output_section->owner == link_info.output_bfd)
	{
	  if (!ppc64_elf_next_input_section (&link_info, i))
	    einfo ("%X%P: can not size stub section: %E\n");
	}
    }
}


/* Call the back-end function to set TOC base after we have placed all
   the sections.  */
static void
gld${EMULATION_NAME}_after_allocation (void)
{
  int ret;

  /* If generating a relocatable output file, then we don't have any
     stubs.  */
  if (stub_file != NULL && !bfd_link_relocatable (&link_info))
    {
      ret = ppc64_elf_setup_section_lists (&link_info);
      if (ret < 0)
	einfo ("%X%P: can not size stub section: %E\n");
      else
	{
	  ppc64_elf_start_multitoc_partition (&link_info);

	  if (!params.no_multi_toc)
	    {
	      toc_section = bfd_get_section_by_name (link_info.output_bfd,
						     toc_section_name);
	      if (toc_section != NULL)
		lang_for_each_statement (build_toc_list);
	    }

	  if (ppc64_elf_layout_multitoc (&link_info)
	      && !params.no_multi_toc
	      && toc_section != NULL)
	    lang_for_each_statement (build_toc_list);

	  ppc64_elf_finish_multitoc_partition (&link_info);

	  lang_for_each_statement (build_section_lists);

	  if (!ppc64_elf_check_init_fini (&link_info))
	    einfo ("%P: .init/.fini fragments use differing TOC pointers\n");

	  /* Call into the BFD backend to do the real work.  */
	  if (!ppc64_elf_size_stubs (&link_info))
	    einfo ("%X%P: can not size stub section: %E\n");
	}
    }

  /* We can't parse and merge .eh_frame until the glink .eh_frame has
     been generated.  Otherwise the glink .eh_frame CIE won't be
     merged with other CIEs, and worse, the glink .eh_frame FDEs won't
     be listed in .eh_frame_hdr.  */
  ret = bfd_elf_discard_info (link_info.output_bfd, &link_info);
  if (ret < 0)
    {
      einfo ("%X%P: .eh_frame/.stab edit: %E\n");
      return;
    }
  else if (ret > 0)
    need_laying_out = 1;

  /* Call map_segments regardless of the state of need_laying_out.
     need_laying_out set to -1 means we have just laid everything out,
     but ppc64_elf_size_stubs strips .branch_lt and .eh_frame if
     unneeded, after ppc_layout_sections_again.  Another call removes
     these sections from the segment map.  Their presence is
     innocuous except for confusing ELF_SECTION_IN_SEGMENT.  */
  gld${EMULATION_NAME}_map_segments (need_laying_out > 0);

  if (need_laying_out != -1 && !bfd_link_relocatable (&link_info))
    ppc64_elf_set_toc (&link_info, link_info.output_bfd);
}


/* Final emulation specific call.  */

static void
gld${EMULATION_NAME}_finish (void)
{
  char *msg = NULL;
  char *line, *endline;

  /* e_entry on PowerPC64 points to the function descriptor for
     _start.  If _start is missing, default to the first function
     descriptor in the .opd section.  */
  if (stub_file != NULL
      && (elf_elfheader (link_info.output_bfd)->e_flags & EF_PPC64_ABI) == 1)
    entry_section = ".opd";

  if (params.emit_stub_syms < 0)
    params.emit_stub_syms = 1;
  if (stub_file != NULL
      && !bfd_link_relocatable (&link_info)
      && !ppc64_elf_build_stubs (&link_info, config.stats ? &msg : NULL))
    einfo ("%X%P: can not build stubs: %E\n");

  fflush (stdout);
  for (line = msg; line != NULL; line = endline)
    {
      endline = strchr (line, '\n');
      if (endline != NULL)
	*endline++ = '\0';
      fprintf (stderr, "%s: %s\n", program_name, line);
    }
  fflush (stderr);
  if (msg != NULL)
    free (msg);

  finish_default ();
}


/* Add a pattern matching ".foo" for every "foo" in a version script.

   The reason for doing this is that many shared library version
   scripts export a selected set of functions or data symbols, forcing
   others local.  eg.

   . VERS_1 {
   .       global:
   .               this; that; some; thing;
   .       local:
   .               *;
   .   };

   To make the above work for PowerPC64, we need to export ".this",
   ".that" and so on, otherwise only the function descriptor syms are
   exported.  Lack of an exported function code sym may cause a
   definition to be pulled in from a static library.  */

static struct bfd_elf_version_expr *
gld${EMULATION_NAME}_new_vers_pattern (struct bfd_elf_version_expr *entry)
{
  struct bfd_elf_version_expr *dot_entry;
  unsigned int len;
  char *dot_pat;

  if (!dotsyms
      || entry->pattern[0] == '.'
      || (!entry->literal && entry->pattern[0] == '*'))
    return entry;

  dot_entry = xmalloc (sizeof *dot_entry);
  *dot_entry = *entry;
  dot_entry->next = entry;
  len = strlen (entry->pattern) + 2;
  dot_pat = xmalloc (len);
  dot_pat[0] = '.';
  memcpy (dot_pat + 1, entry->pattern, len - 1);
  dot_entry->pattern = dot_pat;
  dot_entry->script = 1;
  return dot_entry;
}


/* Avoid processing the fake stub_file in vercheck, stat_needed and
   check_needed routines.  */

static void (*real_func) (lang_input_statement_type *);

static void ppc_for_each_input_file_wrapper (lang_input_statement_type *l)
{
  if (l != stub_file)
    (*real_func) (l);
}

static void
ppc_lang_for_each_input_file (void (*func) (lang_input_statement_type *))
{
  real_func = func;
  lang_for_each_input_file (&ppc_for_each_input_file_wrapper);
}

#define lang_for_each_input_file ppc_lang_for_each_input_file

EOF

if grep -q 'ld_elf32_spu_emulation' ldemul-list.h; then
  fragment <<EOF
/* Special handling for embedded SPU executables.  */
extern bfd_boolean embedded_spu_file (lang_input_statement_type *, const char *);
static bfd_boolean gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *);

static bfd_boolean
ppc64_recognized_file (lang_input_statement_type *entry)
{
  if (embedded_spu_file (entry, "-m64"))
    return TRUE;

  return gld${EMULATION_NAME}_load_symbols (entry);
}
EOF
LDEMUL_RECOGNIZED_FILE=ppc64_recognized_file
fi

# Define some shell vars to insert bits of code into the standard elf
# parse_args and list_options functions.
#
PARSE_AND_LIST_PROLOGUE=${PARSE_AND_LIST_PROLOGUE}'
enum ppc64_opt
{
  OPTION_STUBGROUP_SIZE = 321,
  OPTION_PLT_STATIC_CHAIN,
  OPTION_NO_PLT_STATIC_CHAIN,
  OPTION_PLT_THREAD_SAFE,
  OPTION_NO_PLT_THREAD_SAFE,
  OPTION_PLT_ALIGN,
  OPTION_NO_PLT_ALIGN,
  OPTION_PLT_LOCALENTRY,
  OPTION_NO_PLT_LOCALENTRY,
  OPTION_STUBSYMS,
  OPTION_NO_STUBSYMS,
  OPTION_SAVRES,
  OPTION_NO_SAVRES,
  OPTION_DOTSYMS,
  OPTION_NO_DOTSYMS,
  OPTION_NO_TLS_OPT,
  OPTION_TLS_GET_ADDR_OPT,
  OPTION_NO_TLS_GET_ADDR_OPT,
  OPTION_NO_OPD_OPT,
  OPTION_NO_TOC_OPT,
  OPTION_NO_MULTI_TOC,
  OPTION_NO_TOC_SORT,
  OPTION_NON_OVERLAPPING_OPD
};
'

PARSE_AND_LIST_LONGOPTS=${PARSE_AND_LIST_LONGOPTS}'
  { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
  { "plt-static-chain", no_argument, NULL, OPTION_PLT_STATIC_CHAIN },
  { "no-plt-static-chain", no_argument, NULL, OPTION_NO_PLT_STATIC_CHAIN },
  { "plt-thread-safe", no_argument, NULL, OPTION_PLT_THREAD_SAFE },
  { "no-plt-thread-safe", no_argument, NULL, OPTION_NO_PLT_THREAD_SAFE },
  { "plt-align", optional_argument, NULL, OPTION_PLT_ALIGN },
  { "no-plt-align", no_argument, NULL, OPTION_NO_PLT_ALIGN },
  { "plt-localentry", optional_argument, NULL, OPTION_PLT_LOCALENTRY },
  { "no-plt-localentry", no_argument, NULL, OPTION_NO_PLT_LOCALENTRY },
  { "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS },
  { "no-emit-stub-syms", no_argument, NULL, OPTION_NO_STUBSYMS },
  { "dotsyms", no_argument, NULL, OPTION_DOTSYMS },
  { "no-dotsyms", no_argument, NULL, OPTION_NO_DOTSYMS },
  { "save-restore-funcs", no_argument, NULL, OPTION_SAVRES },
  { "no-save-restore-funcs", no_argument, NULL, OPTION_NO_SAVRES },
  { "no-tls-optimize", no_argument, NULL, OPTION_NO_TLS_OPT },
  { "tls-get-addr-optimize", no_argument, NULL, OPTION_TLS_GET_ADDR_OPT },
  { "no-tls-get-addr-optimize", no_argument, NULL, OPTION_NO_TLS_GET_ADDR_OPT },
  { "no-opd-optimize", no_argument, NULL, OPTION_NO_OPD_OPT },
  { "no-toc-optimize", no_argument, NULL, OPTION_NO_TOC_OPT },
  { "no-multi-toc", no_argument, NULL, OPTION_NO_MULTI_TOC },
  { "no-toc-sort", no_argument, NULL, OPTION_NO_TOC_SORT },
  { "non-overlapping-opd", no_argument, NULL, OPTION_NON_OVERLAPPING_OPD },
'

PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}'
  fprintf (file, _("\
  --stub-group-size=N         Maximum size of a group of input sections that\n\
                                can be handled by one stub section.  A negative\n\
                                value locates all stubs before their branches\n\
                                (with a group size of -N), while a positive\n\
                                value allows two groups of input sections, one\n\
                                before, and one after each stub section.\n\
                                Values of +/-1 indicate the linker should\n\
                                choose suitable defaults.\n"
		   ));
  fprintf (file, _("\
  --plt-static-chain          PLT call stubs should load r11.'${DEFAULT_PLT_STATIC_CHAIN- (default)}'\n"
		   ));
  fprintf (file, _("\
  --no-plt-static-chain       PLT call stubs should not load r11.'${DEFAULT_PLT_STATIC_CHAIN+ (default)}'\n"
		   ));
  fprintf (file, _("\
  --plt-thread-safe           PLT call stubs with load-load barrier.\n"
		   ));
  fprintf (file, _("\
  --no-plt-thread-safe        PLT call stubs without barrier.\n"
		   ));
  fprintf (file, _("\
  --plt-align [=<align>]      Align PLT call stubs to fit cache lines.\n"
		   ));
  fprintf (file, _("\
  --no-plt-align              Dont'\''t align individual PLT call stubs.\n"
		   ));
  fprintf (file, _("\
  --plt-localentry            Optimize calls to ELFv2 localentry:0 functions.\n"
		   ));
  fprintf (file, _("\
  --no-plt-localentry         Don'\''t optimize ELFv2 calls.\n"
		   ));
  fprintf (file, _("\
  --emit-stub-syms            Label linker stubs with a symbol.\n"
		   ));
  fprintf (file, _("\
  --no-emit-stub-syms         Don'\''t label linker stubs with a symbol.\n"
		   ));
  fprintf (file, _("\
  --dotsyms                   For every version pattern \"foo\" in a version\n\
                                script, add \".foo\" so that function code\n\
                                symbols are treated the same as function\n\
                                descriptor symbols.  Defaults to on.\n"
		   ));
  fprintf (file, _("\
  --no-dotsyms                Don'\''t do anything special in version scripts.\n"
		   ));
  fprintf (file, _("\
  --save-restore-funcs        Provide register save and restore routines used\n\
                                by gcc -Os code.  Defaults to on for normal\n\
                                final link, off for ld -r.\n"
		   ));
  fprintf (file, _("\
  --no-save-restore-funcs     Don'\''t provide these routines.\n"
		   ));
  fprintf (file, _("\
  --no-tls-optimize           Don'\''t try to optimize TLS accesses.\n"
		   ));
  fprintf (file, _("\
  --tls-get-addr-optimize     Force use of special __tls_get_addr call.\n"
		   ));
  fprintf (file, _("\
  --no-tls-get-addr-optimize  Don'\''t use a special __tls_get_addr call.\n"
		   ));
  fprintf (file, _("\
  --no-opd-optimize           Don'\''t optimize the OPD section.\n"
		   ));
  fprintf (file, _("\
  --no-toc-optimize           Don'\''t optimize the TOC section.\n"
		   ));
  fprintf (file, _("\
  --no-multi-toc              Disallow automatic multiple toc sections.\n"
		   ));
  fprintf (file, _("\
  --no-toc-sort               Don'\''t sort TOC and GOT sections.\n"
		   ));
  fprintf (file, _("\
  --non-overlapping-opd       Canonicalize .opd, so that there are no\n\
                                overlapping .opd entries.\n"
		   ));
'

PARSE_AND_LIST_ARGS_CASES=${PARSE_AND_LIST_ARGS_CASES}'
    case OPTION_STUBGROUP_SIZE:
      {
	const char *end;
        params.group_size = bfd_scan_vma (optarg, &end, 0);
        if (*end)
	  einfo (_("%P%F: invalid number `%s'\''\n"), optarg);
      }
      break;

    case OPTION_PLT_STATIC_CHAIN:
      params.plt_static_chain = 1;
      break;

    case OPTION_NO_PLT_STATIC_CHAIN:
      params.plt_static_chain = 0;
      break;

    case OPTION_PLT_THREAD_SAFE:
      params.plt_thread_safe = 1;
      break;

    case OPTION_NO_PLT_THREAD_SAFE:
      params.plt_thread_safe = 0;
      break;

    case OPTION_PLT_ALIGN:
      if (optarg != NULL)
	{
	  char *end;
	  unsigned long val = strtoul (optarg, &end, 0);
	  if (*end || val > 8)
	    einfo (_("%P%F: invalid --plt-align `%s'\''\n"), optarg);
	  params.plt_stub_align = val;
	}
      else
	params.plt_stub_align = 5;
      break;

    case OPTION_NO_PLT_ALIGN:
      params.plt_stub_align = 0;
      break;

    case OPTION_PLT_LOCALENTRY:
      params.plt_localentry0 = 1;
      break;

    case OPTION_NO_PLT_LOCALENTRY:
      params.plt_localentry0 = 0;
      break;

    case OPTION_STUBSYMS:
      params.emit_stub_syms = 1;
      break;

    case OPTION_NO_STUBSYMS:
      params.emit_stub_syms = 0;
      break;

    case OPTION_DOTSYMS:
      dotsyms = 1;
      break;

    case OPTION_NO_DOTSYMS:
      dotsyms = 0;
      break;

    case OPTION_SAVRES:
      params.save_restore_funcs = 1;
      break;

    case OPTION_NO_SAVRES:
      params.save_restore_funcs = 0;
      break;

    case OPTION_NO_TLS_OPT:
      no_tls_opt = 1;
      break;

    case OPTION_TLS_GET_ADDR_OPT:
      params.tls_get_addr_opt = 1;
      break;

    case OPTION_NO_TLS_GET_ADDR_OPT:
      params.tls_get_addr_opt = 0;
      break;

    case OPTION_NO_OPD_OPT:
      no_opd_opt = 1;
      break;

    case OPTION_NO_TOC_OPT:
      no_toc_opt = 1;
      break;

    case OPTION_NO_MULTI_TOC:
      params.no_multi_toc = 1;
      break;

    case OPTION_NO_TOC_SORT:
      no_toc_sort = 1;
      break;

    case OPTION_NON_OVERLAPPING_OPD:
      params.non_overlapping_opd = 1;
      break;

    case OPTION_TRADITIONAL_FORMAT:
      no_tls_opt = 1;
      params.tls_get_addr_opt = 0;
      no_opd_opt = 1;
      no_toc_opt = 1;
      params.no_multi_toc = 1;
      no_toc_sort = 1;
      params.plt_static_chain = 1;
      return FALSE;
'

# Put these extra ppc64elf routines in ld_${EMULATION_NAME}_emulation
#
LDEMUL_NEW_VERS_PATTERN=gld${EMULATION_NAME}_new_vers_pattern
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=ppc_create_output_section_statements
LDEMUL_AFTER_OPEN=ppc_after_open
LDEMUL_BEFORE_ALLOCATION=ppc_before_allocation
LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
LDEMUL_FINISH=gld${EMULATION_NAME}_finish