aboutsummaryrefslogtreecommitdiff
blob: 9e49a166a68529b63f0025f6ea9ac3ea95eab6e0 (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
/* BFD back-end for Texas Instruments TMS320C80 Multimedia Video Processor (MVP).
   Copyright (C) 1996-2019 Free Software Foundation, Inc.

   Written by Fred Fish (fnf@cygnus.com)

   There is nothing new under the sun. This file draws a lot on other
   coff files.

   This file is part of BFD, the Binary File Descriptor library.

   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, 51 Franklin Street - Fifth Floor,
   Boston, MA 02110-1301, USA.  */

#include "sysdep.h"
#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#ifdef _CONST
/* Newlib-based hosts define _CONST as a STDC-safe alias for const,
  but to the tic80 toolchain it means something altogether different.
  Since sysdep.h will have pulled in stdio.h and hence _ansi.h which
  contains this definition, we must undef it before including the
  tic80-specific definition. */
#undef _CONST
#endif /* _CONST */
#include "coff/tic80.h"
#include "coff/internal.h"
#include "libcoff.h"

#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
#define COFF_ALIGN_IN_SECTION_HEADER 1
#define COFF_ALIGN_IN_SFLAGS 1
#define COFF_ENCODE_ALIGNMENT(S,X) ((S).s_flags |= (((unsigned)(X) & 0xf) << 8))
#define COFF_DECODE_ALIGNMENT(X) (((X) >> 8) & 0xf)

#define GET_SCNHDR_FLAGS H_GET_16
#define PUT_SCNHDR_FLAGS H_PUT_16

static bfd_reloc_status_type ppbase_reloc
  (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
static bfd_reloc_status_type glob15_reloc
  (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
static bfd_reloc_status_type glob16_reloc
  (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
static bfd_reloc_status_type local16_reloc
  (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);


static reloc_howto_type tic80_howto_table[] =
{

  HOWTO (R_RELLONG,			/* type */
	 0,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 32,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_bitfield,	/* complain_on_overflow */
	 NULL,				/* special_function */
	 "RELLONG",			/* name */
	 TRUE,				/* partial_inplace */
	 0xffffffff,			/* src_mask */
	 0xffffffff,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_MPPCR,			/* type */
	 2,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 32,				/* bitsize */
	 TRUE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_signed,	/* complain_on_overflow */
	 NULL,				/* special_function */
	 "MPPCR",			/* name */
	 TRUE,				/* partial_inplace */
	 0xffffffff,			/* src_mask */
	 0xffffffff,			/* dst_mask */
	 TRUE),				/* pcrel_offset */

  HOWTO (R_ABS,				/* type */
	 0,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 32,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_bitfield,	/* complain_on_overflow */
	 NULL,				/* special_function */
	 "ABS",				/* name */
	 TRUE,				/* partial_inplace */
	 0xffffffff,			/* src_mask */
	 0xffffffff,			/* dst_mask */
	 FALSE),				/* pcrel_offset */

  HOWTO (R_PPBASE,			/* type */
	 0,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 32,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 ppbase_reloc,			/* special_function */
	 "PPBASE",			/* name */
	 TRUE,				/* partial_inplace */
	 0xffffffff,			/* src_mask */
	 0xffffffff,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPLBASE,			/* type */
	 0,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 32,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 ppbase_reloc,			/* special_function */
	 "PPLBASE",			/* name */
	 TRUE,				/* partial_inplace */
	 0xffffffff,			/* src_mask */
	 0xffffffff,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PP15,			/* type */
	 0,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 6,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 glob15_reloc,			/* special_function */
	 "PP15",			/* name */
	 TRUE,				/* partial_inplace */
	 0x1ffc0,			/* src_mask */
	 0x1ffc0,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PP15W,			/* type */
	 2,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 6,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 glob15_reloc,			/* special_function */
	 "PP15W",			/* name */
	 TRUE,				/* partial_inplace */
	 0x1ffc0,			/* src_mask */
	 0x1ffc0,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PP15H,			/* type */
	 1,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 6,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 glob15_reloc,			/* special_function */
	 "PP15H",			/* name */
	 TRUE,				/* partial_inplace */
	 0x1ffc0,			/* src_mask */
	 0x1ffc0,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PP16B,			/* type */
	 0,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 16,				/* bitsize */
	 FALSE,				/* pc_relative */
	 6,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 glob16_reloc,			/* special_function */
	 "PP16B",			/* name */
	 TRUE,				/* partial_inplace */
	 0x3ffc0,			/* src_mask */
	 0x3ffc0,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPL15,			/* type */
	 0,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 NULL,				/* special_function */
	 "PPL15",			/* name */
	 TRUE,				/* partial_inplace */
	 0x7fff,			/* src_mask */
	 0x7fff,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPL15W,			/* type */
	 2,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 NULL,				/* special_function */
	 "PPL15W",			/* name */
	 TRUE,				/* partial_inplace */
	 0x7fff,			/* src_mask */
	 0x7fff,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPL15H,			/* type */
	 1,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 NULL,				/* special_function */
	 "PPL15H",			/* name */
	 TRUE,				/* partial_inplace */
	 0x7fff,			/* src_mask */
	 0x7fff,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPL16B,			/* type */
	 0,				/* rightshift */
	 2,				/* size (0 = byte, 1 = short, 2 = long) */
	 16,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 local16_reloc,			/* special_function */
	 "PPL16B",			/* name */
	 TRUE,				/* partial_inplace */
	 0xffff,			/* src_mask */
	 0xffff,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPN15,			/* type */
	 0,				/* rightshift */
	 -2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 6,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 glob15_reloc,			/* special_function */
	 "PPN15",			/* name */
	 TRUE,				/* partial_inplace */
	 0x1ffc0,			/* src_mask */
	 0x1ffc0,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPN15W,			/* type */
	 2,				/* rightshift */
	 -2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 6,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 glob15_reloc,			/* special_function */
	 "PPN15W",			/* name */
	 TRUE,				/* partial_inplace */
	 0x1ffc0,			/* src_mask */
	 0x1ffc0,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPN15H,			/* type */
	 1,				/* rightshift */
	 -2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 6,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 glob15_reloc,			/* special_function */
	 "PPN15H",			/* name */
	 TRUE,				/* partial_inplace */
	 0x1ffc0,			/* src_mask */
	 0x1ffc0,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPN16B,			/* type */
	 0,				/* rightshift */
	 -2,				/* size (0 = byte, 1 = short, 2 = long) */
	 16,				/* bitsize */
	 FALSE,				/* pc_relative */
	 6,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 glob16_reloc,			/* special_function */
	 "PPN16B",			/* name */
	 TRUE,				/* partial_inplace */
	 0x3ffc0,			/* src_mask */
	 0x3ffc0,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPLN15,			/* type */
	 0,				/* rightshift */
	 -2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 NULL,				/* special_function */
	 "PPLN15",			/* name */
	 TRUE,				/* partial_inplace */
	 0x7fff,			/* src_mask */
	 0x7fff,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPLN15W,			/* type */
	 2,				/* rightshift */
	 -2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 NULL,				/* special_function */
	 "PPLN15W",			/* name */
	 TRUE,				/* partial_inplace */
	 0x7fff,			/* src_mask */
	 0x7fff,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPLN15H,			/* type */
	 1,				/* rightshift */
	 -2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 NULL,				/* special_function */
	 "PPLN15H",			/* name */
	 TRUE,				/* partial_inplace */
	 0x7fff,			/* src_mask */
	 0x7fff,			/* dst_mask */
	 FALSE),			/* pcrel_offset */

  HOWTO (R_PPLN16B,			/* type */
	 0,				/* rightshift */
	 -2,				/* size (0 = byte, 1 = short, 2 = long) */
	 15,				/* bitsize */
	 FALSE,				/* pc_relative */
	 0,				/* bitpos */
	 complain_overflow_dont,	/* complain_on_overflow */
	 local16_reloc,			/* special_function */
	 "PPLN16B",			/* name */
	 TRUE,				/* partial_inplace */
	 0xffff,			/* src_mask */
	 0xffff,			/* dst_mask */
	 FALSE)				/* pcrel_offset */
};

/* Special relocation functions, used when the output file is not
   itself a COFF TIc80 file.  */

/* This special function is used for the base address type
   relocations.  */

static bfd_reloc_status_type
ppbase_reloc (bfd *abfd ATTRIBUTE_UNUSED,
	      arelent *reloc_entry ATTRIBUTE_UNUSED,
	      asymbol *symbol_in ATTRIBUTE_UNUSED,
	      void * data ATTRIBUTE_UNUSED,
	      asection *input_section ATTRIBUTE_UNUSED,
	      bfd *output_bfd ATTRIBUTE_UNUSED,
	      char **error_message ATTRIBUTE_UNUSED)
{
  /* FIXME.  */
  abort ();
}

/* This special function is used for the global 15 bit relocations.  */

static bfd_reloc_status_type
glob15_reloc (bfd *abfd ATTRIBUTE_UNUSED,
	      arelent *reloc_entry ATTRIBUTE_UNUSED,
	      asymbol *symbol_in ATTRIBUTE_UNUSED,
	      void * data ATTRIBUTE_UNUSED,
	      asection *input_section ATTRIBUTE_UNUSED,
	      bfd *output_bfd ATTRIBUTE_UNUSED,
	      char **error_message ATTRIBUTE_UNUSED)
{
  /* FIXME.  */
  abort ();
}

/* This special function is used for the global 16 bit relocations.  */

static bfd_reloc_status_type
glob16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
	      arelent *reloc_entry ATTRIBUTE_UNUSED,
	      asymbol *symbol_in ATTRIBUTE_UNUSED,
	      void * data ATTRIBUTE_UNUSED,
	      asection *input_section ATTRIBUTE_UNUSED,
	      bfd *output_bfd ATTRIBUTE_UNUSED,
	      char **error_message ATTRIBUTE_UNUSED)
{
  /* FIXME.  */
  abort ();
}

/* This special function is used for the local 16 bit relocations.  */

static bfd_reloc_status_type
local16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
	       arelent *reloc_entry ATTRIBUTE_UNUSED,
	       asymbol *symbol_in ATTRIBUTE_UNUSED,
	       void * data ATTRIBUTE_UNUSED,
	       asection *input_section ATTRIBUTE_UNUSED,
	       bfd *output_bfd ATTRIBUTE_UNUSED,
	       char **error_message ATTRIBUTE_UNUSED)
{
  /* FIXME.  */
  abort ();
}

/* Code to turn an external r_type into a pointer to an entry in the howto_table.
   If passed an r_type we don't recognize the abort rather than silently failing
   to generate an output file.  */

static void
rtype2howto (arelent *cache_ptr, struct internal_reloc *dst)
{
  unsigned int i;

  for (i = 0; i < sizeof tic80_howto_table / sizeof tic80_howto_table[0]; i++)
    {
      if (tic80_howto_table[i].type == dst->r_type)
	{
	  cache_ptr->howto = tic80_howto_table + i;
	  return;
	}
    }

  _bfd_error_handler (_("unsupported relocation type %#x"),
		      (unsigned int) dst->r_type);
  cache_ptr->howto = tic80_howto_table + 0;
}

#define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst)
#define coff_rtype_to_howto coff_tic80_rtype_to_howto

static reloc_howto_type *
coff_tic80_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
			   asection *sec,
			   struct internal_reloc *rel,
			   struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
			   struct internal_syment *sym ATTRIBUTE_UNUSED,
			   bfd_vma *addendp)
{
  arelent genrel;

  if (rel -> r_symndx == -1 && addendp != NULL)
    {
      /* This is a TI "internal relocation", which means that the relocation
	 amount is the amount by which the current section is being relocated
	 in the output section.  */
      *addendp = (sec -> output_section -> vma + sec -> output_offset) - sec -> vma;
    }
  RTYPE2HOWTO (&genrel, rel);
  return genrel.howto;
}

#ifndef BADMAG
#define BADMAG(x) TIC80BADMAG(x)
#endif

#define coff_relocate_section coff_tic80_relocate_section

/* We need a special relocation routine to handle the PP relocs.  Most
   of this is a copy of _bfd_coff_generic_relocate_section.  */

static bfd_boolean
coff_tic80_relocate_section (bfd *output_bfd,
			     struct bfd_link_info *info,
			     bfd *input_bfd,
			     asection *input_section,
			     bfd_byte *contents,
			     struct internal_reloc *relocs,
			     struct internal_syment *syms,
			     asection **sections)
{
  struct internal_reloc *rel;
  struct internal_reloc *relend;

  rel = relocs;
  relend = rel + input_section->reloc_count;
  for (; rel < relend; rel++)
    {
      long symndx;
      struct coff_link_hash_entry *h;
      struct internal_syment *sym;
      bfd_vma addend;
      bfd_vma val;
      reloc_howto_type *howto;
      bfd_reloc_status_type rstat;
      bfd_vma addr;

      symndx = rel->r_symndx;

      if (symndx == -1)
	{
	  h = NULL;
	  sym = NULL;
	}
      else
	{
	  h = obj_coff_sym_hashes (input_bfd)[symndx];
	  sym = syms + symndx;
	}

      /* COFF treats common symbols in one of two ways.  Either the
	 size of the symbol is included in the section contents, or it
	 is not.  We assume that the size is not included, and force
	 the rtype_to_howto function to adjust the addend as needed.  */

      if (sym != NULL && sym->n_scnum != 0)
	addend = - sym->n_value;
      else
	addend = 0;

      howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
				       sym, &addend);
      if (howto == NULL)
	return FALSE;

      val = 0;

      if (h == NULL)
	{
	  asection *sec;

	  if (symndx == -1)
	    {
	      sec = bfd_abs_section_ptr;
	      val = 0;
	    }
	  else
	    {
	      sec = sections[symndx];
	      val = (sec->output_section->vma
		     + sec->output_offset
		     + sym->n_value);
	      if (! obj_pe (output_bfd))
		val -= sec->vma;
	    }
	}
      else
	{
	  if (h->root.type == bfd_link_hash_defined
	      || h->root.type == bfd_link_hash_defweak)
	    {
	      asection *sec;

	      sec = h->root.u.def.section;
	      val = (h->root.u.def.value
		     + sec->output_section->vma
		     + sec->output_offset);
	      }

	  else if (! bfd_link_relocatable (info))
	    (*info->callbacks->undefined_symbol)
	      (info, h->root.root.string, input_bfd, input_section,
	       rel->r_vaddr - input_section->vma, TRUE);
	}

      addr = rel->r_vaddr - input_section->vma;

      /* FIXME: This code assumes little endian, but the PP can
	 apparently be bi-endian.  I don't know if the bi-endianness
	 applies to the instruction set or just to the data.  */
      switch (howto->type)
	{
	default:
	case R_ABS:
	case R_RELLONGX:
	case R_PPL15:
	case R_PPL15W:
	case R_PPL15H:
	case R_PPLN15:
	case R_PPLN15W:
	case R_PPLN15H:
	  rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
					    contents, addr, val, addend);
	  break;

	case R_PP15:
	case R_PP15W:
	case R_PP15H:
	case R_PPN15:
	case R_PPN15W:
	case R_PPN15H:
	  /* Offset the address so that we can use 4 byte relocations.  */
	  rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
					    contents + 2, addr, val, addend);
	  break;

	case R_PP16B:
	case R_PPN16B:
	  {
	    /* The most significant bit is stored in bit 6.  */
	    bfd_byte hold;

	    hold = contents[addr + 4];
	    contents[addr + 4] &=~ 0x20;
	    contents[addr + 4] |= (contents[addr] >> 1) & 0x20;
	    rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
					      contents + 2, addr,
					      val, addend);
	    contents[addr] &=~ 0x40;
	    contents[addr] |= (contents[addr + 4] << 1) & 0x40;
	    contents[addr + 4] &=~ 0x20;
	    contents[addr + 4] |= hold & 0x20;
	    break;
	  }

	case R_PPL16B:
	case R_PPLN16B:
	  {
	    /* The most significant bit is stored in bit 28.  */
	    bfd_byte hold;

	    hold = contents[addr + 1];
	    contents[addr + 1] &=~ 0x80;
	    contents[addr + 1] |= (contents[addr + 3] << 3) & 0x80;
	    rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
					      contents, addr,
					      val, addend);
	    contents[addr + 3] &= ~0x10;
	    contents[addr + 3] |= (contents[addr + 1] >> 3) & 0x10;
	    contents[addr + 1] &=~ 0x80;
	    contents[addr + 1] |= hold & 0x80;
	    break;
	  }

	case R_PPBASE:
	  /* Parameter RAM is from 0x1000000 to 0x1000800.  */
	  contents[addr] &=~ 0x3;
	  if (val >= 0x1000000 && val < 0x1000800)
	    contents[addr] |= 0x3;
	  else
	    contents[addr] |= 0x2;
	  rstat = bfd_reloc_ok;
	  break;

	case R_PPLBASE:
	  /* Parameter RAM is from 0x1000000 to 0x1000800.  */
	  contents[addr + 2] &= ~0xc0;
	  if (val >= 0x1000000 && val < 0x1000800)
	    contents[addr + 2] |= 0xc0;
	  else
	    contents[addr + 2] |= 0x80;
	  rstat = bfd_reloc_ok;
	  break;
	}

      switch (rstat)
	{
	default:
	  abort ();
	case bfd_reloc_ok:
	  break;
	case bfd_reloc_outofrange:
	  _bfd_error_handler
	    /* xgettext: c-format */
	    (_("%pB: bad reloc address %#" PRIx64 " in section `%pA'"),
	     input_bfd, (uint64_t) rel->r_vaddr, input_section);
	  return FALSE;
	case bfd_reloc_overflow:
	  {
	    const char *name;
	    char buf[SYMNMLEN + 1];

	    if (symndx == -1)
	      name = "*ABS*";
	    else if (h != NULL)
	      name = NULL;
	    else
	      {
		name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
		if (name == NULL)
		  return FALSE;
	      }

	    (*info->callbacks->reloc_overflow)
	      (info, (h ? &h->root : NULL), name, howto->name,
	       (bfd_vma) 0, input_bfd, input_section,
	       rel->r_vaddr - input_section->vma);
	  }
	}
    }
  return TRUE;
}

#define TIC80COFF 1		/* Customize coffcode.h */
#undef C_AUTOARG		/* Clashes with TIc80's C_UEXT */
#undef C_LASTENT		/* Clashes with TIc80's C_STATLAB */

#ifndef bfd_pe_print_pdata
#define bfd_pe_print_pdata	NULL
#endif

#include "coffcode.h"

CREATE_LITTLE_COFF_TARGET_VEC (tic80_coff_vec, "coff-tic80", D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE)