1 /* BFD back-end for Texas Instruments TMS320C80 Multimedia Video Processor (MVP).
2 Copyright (C) 1996-2016 Free Software Foundation, Inc.
3
4 Written by Fred Fish (fnf@cygnus.com)
5
6 There is nothing new under the sun. This file draws a lot on other
7 coff files.
8
9 This file is part of BFD, the Binary File Descriptor library.
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, 51 Franklin Street - Fifth Floor,
24 Boston, MA 02110-1301, USA. */
25
26 #include "sysdep.h"
27 #include "bfd.h"
28 #include "bfdlink.h"
29 #include "libbfd.h"
30 #ifdef _CONST
31 /* Newlib-based hosts define _CONST as a STDC-safe alias for const,
32 but to the tic80 toolchain it means something altogether different.
33 Since sysdep.h will have pulled in stdio.h and hence _ansi.h which
34 contains this definition, we must undef it before including the
35 tic80-specific definition. */
36 #undef _CONST
37 #endif /* _CONST */
38 #include "coff/tic80.h"
39 #include "coff/internal.h"
40 #include "libcoff.h"
41
42 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
43 #define COFF_ALIGN_IN_SECTION_HEADER 1
44 #define COFF_ALIGN_IN_SFLAGS 1
45
46 #define GET_SCNHDR_FLAGS H_GET_16
47 #define PUT_SCNHDR_FLAGS H_PUT_16
48
49 static bfd_reloc_status_type ppbase_reloc
50 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
51 static bfd_reloc_status_type glob15_reloc
52 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
53 static bfd_reloc_status_type glob16_reloc
54 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
55 static bfd_reloc_status_type local16_reloc
56 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
57
58
59 static reloc_howto_type tic80_howto_table[] =
60 {
61
62 HOWTO (R_RELLONG, /* 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 NULL, /* special_function */
70 "RELLONG", /* name */
71 TRUE, /* partial_inplace */
72 0xffffffff, /* src_mask */
73 0xffffffff, /* dst_mask */
74 FALSE), /* pcrel_offset */
75
76 HOWTO (R_MPPCR, /* type */
77 2, /* rightshift */
78 2, /* size (0 = byte, 1 = short, 2 = long) */
79 32, /* bitsize */
80 TRUE, /* pc_relative */
81 0, /* bitpos */
82 complain_overflow_signed, /* complain_on_overflow */
83 NULL, /* special_function */
84 "MPPCR", /* name */
85 TRUE, /* partial_inplace */
86 0xffffffff, /* src_mask */
87 0xffffffff, /* dst_mask */
88 TRUE), /* pcrel_offset */
89
90 HOWTO (R_ABS, /* type */
91 0, /* rightshift */
92 2, /* size (0 = byte, 1 = short, 2 = long) */
93 32, /* bitsize */
94 FALSE, /* pc_relative */
95 0, /* bitpos */
96 complain_overflow_bitfield, /* complain_on_overflow */
97 NULL, /* special_function */
98 "ABS", /* name */
99 TRUE, /* partial_inplace */
100 0xffffffff, /* src_mask */
101 0xffffffff, /* dst_mask */
102 FALSE), /* pcrel_offset */
103
104 HOWTO (R_PPBASE, /* type */
105 0, /* rightshift */
106 2, /* size (0 = byte, 1 = short, 2 = long) */
107 32, /* bitsize */
108 FALSE, /* pc_relative */
109 0, /* bitpos */
110 complain_overflow_dont, /* complain_on_overflow */
111 ppbase_reloc, /* special_function */
112 "PPBASE", /* name */
113 TRUE, /* partial_inplace */
114 0xffffffff, /* src_mask */
115 0xffffffff, /* dst_mask */
116 FALSE), /* pcrel_offset */
117
118 HOWTO (R_PPLBASE, /* type */
119 0, /* rightshift */
120 2, /* size (0 = byte, 1 = short, 2 = long) */
121 32, /* bitsize */
122 FALSE, /* pc_relative */
123 0, /* bitpos */
124 complain_overflow_dont, /* complain_on_overflow */
125 ppbase_reloc, /* special_function */
126 "PPLBASE", /* name */
127 TRUE, /* partial_inplace */
128 0xffffffff, /* src_mask */
129 0xffffffff, /* dst_mask */
130 FALSE), /* pcrel_offset */
131
132 HOWTO (R_PP15, /* type */
133 0, /* rightshift */
134 2, /* size (0 = byte, 1 = short, 2 = long) */
135 15, /* bitsize */
136 FALSE, /* pc_relative */
137 6, /* bitpos */
138 complain_overflow_dont, /* complain_on_overflow */
139 glob15_reloc, /* special_function */
140 "PP15", /* name */
141 TRUE, /* partial_inplace */
142 0x1ffc0, /* src_mask */
143 0x1ffc0, /* dst_mask */
144 FALSE), /* pcrel_offset */
145
146 HOWTO (R_PP15W, /* type */
147 2, /* rightshift */
148 2, /* size (0 = byte, 1 = short, 2 = long) */
149 15, /* bitsize */
150 FALSE, /* pc_relative */
151 6, /* bitpos */
152 complain_overflow_dont, /* complain_on_overflow */
153 glob15_reloc, /* special_function */
154 "PP15W", /* name */
155 TRUE, /* partial_inplace */
156 0x1ffc0, /* src_mask */
157 0x1ffc0, /* dst_mask */
158 FALSE), /* pcrel_offset */
159
160 HOWTO (R_PP15H, /* type */
161 1, /* rightshift */
162 2, /* size (0 = byte, 1 = short, 2 = long) */
163 15, /* bitsize */
164 FALSE, /* pc_relative */
165 6, /* bitpos */
166 complain_overflow_dont, /* complain_on_overflow */
167 glob15_reloc, /* special_function */
168 "PP15H", /* name */
169 TRUE, /* partial_inplace */
170 0x1ffc0, /* src_mask */
171 0x1ffc0, /* dst_mask */
172 FALSE), /* pcrel_offset */
173
174 HOWTO (R_PP16B, /* type */
175 0, /* rightshift */
176 2, /* size (0 = byte, 1 = short, 2 = long) */
177 16, /* bitsize */
178 FALSE, /* pc_relative */
179 6, /* bitpos */
180 complain_overflow_dont, /* complain_on_overflow */
181 glob16_reloc, /* special_function */
182 "PP16B", /* name */
183 TRUE, /* partial_inplace */
184 0x3ffc0, /* src_mask */
185 0x3ffc0, /* dst_mask */
186 FALSE), /* pcrel_offset */
187
188 HOWTO (R_PPL15, /* type */
189 0, /* rightshift */
190 2, /* size (0 = byte, 1 = short, 2 = long) */
191 15, /* bitsize */
192 FALSE, /* pc_relative */
193 0, /* bitpos */
194 complain_overflow_dont, /* complain_on_overflow */
195 NULL, /* special_function */
196 "PPL15", /* name */
197 TRUE, /* partial_inplace */
198 0x7fff, /* src_mask */
199 0x7fff, /* dst_mask */
200 FALSE), /* pcrel_offset */
201
202 HOWTO (R_PPL15W, /* type */
203 2, /* rightshift */
204 2, /* size (0 = byte, 1 = short, 2 = long) */
205 15, /* bitsize */
206 FALSE, /* pc_relative */
207 0, /* bitpos */
208 complain_overflow_dont, /* complain_on_overflow */
209 NULL, /* special_function */
210 "PPL15W", /* name */
211 TRUE, /* partial_inplace */
212 0x7fff, /* src_mask */
213 0x7fff, /* dst_mask */
214 FALSE), /* pcrel_offset */
215
216 HOWTO (R_PPL15H, /* type */
217 1, /* rightshift */
218 2, /* size (0 = byte, 1 = short, 2 = long) */
219 15, /* bitsize */
220 FALSE, /* pc_relative */
221 0, /* bitpos */
222 complain_overflow_dont, /* complain_on_overflow */
223 NULL, /* special_function */
224 "PPL15H", /* name */
225 TRUE, /* partial_inplace */
226 0x7fff, /* src_mask */
227 0x7fff, /* dst_mask */
228 FALSE), /* pcrel_offset */
229
230 HOWTO (R_PPL16B, /* type */
231 0, /* rightshift */
232 2, /* size (0 = byte, 1 = short, 2 = long) */
233 16, /* bitsize */
234 FALSE, /* pc_relative */
235 0, /* bitpos */
236 complain_overflow_dont, /* complain_on_overflow */
237 local16_reloc, /* special_function */
238 "PPL16B", /* name */
239 TRUE, /* partial_inplace */
240 0xffff, /* src_mask */
241 0xffff, /* dst_mask */
242 FALSE), /* pcrel_offset */
243
244 HOWTO (R_PPN15, /* type */
245 0, /* rightshift */
246 -2, /* size (0 = byte, 1 = short, 2 = long) */
247 15, /* bitsize */
248 FALSE, /* pc_relative */
249 6, /* bitpos */
250 complain_overflow_dont, /* complain_on_overflow */
251 glob15_reloc, /* special_function */
252 "PPN15", /* name */
253 TRUE, /* partial_inplace */
254 0x1ffc0, /* src_mask */
255 0x1ffc0, /* dst_mask */
256 FALSE), /* pcrel_offset */
257
258 HOWTO (R_PPN15W, /* type */
259 2, /* rightshift */
260 -2, /* size (0 = byte, 1 = short, 2 = long) */
261 15, /* bitsize */
262 FALSE, /* pc_relative */
263 6, /* bitpos */
264 complain_overflow_dont, /* complain_on_overflow */
265 glob15_reloc, /* special_function */
266 "PPN15W", /* name */
267 TRUE, /* partial_inplace */
268 0x1ffc0, /* src_mask */
269 0x1ffc0, /* dst_mask */
270 FALSE), /* pcrel_offset */
271
272 HOWTO (R_PPN15H, /* type */
273 1, /* rightshift */
274 -2, /* size (0 = byte, 1 = short, 2 = long) */
275 15, /* bitsize */
276 FALSE, /* pc_relative */
277 6, /* bitpos */
278 complain_overflow_dont, /* complain_on_overflow */
279 glob15_reloc, /* special_function */
280 "PPN15H", /* name */
281 TRUE, /* partial_inplace */
282 0x1ffc0, /* src_mask */
283 0x1ffc0, /* dst_mask */
284 FALSE), /* pcrel_offset */
285
286 HOWTO (R_PPN16B, /* type */
287 0, /* rightshift */
288 -2, /* size (0 = byte, 1 = short, 2 = long) */
289 16, /* bitsize */
290 FALSE, /* pc_relative */
291 6, /* bitpos */
292 complain_overflow_dont, /* complain_on_overflow */
293 glob16_reloc, /* special_function */
294 "PPN16B", /* name */
295 TRUE, /* partial_inplace */
296 0x3ffc0, /* src_mask */
297 0x3ffc0, /* dst_mask */
298 FALSE), /* pcrel_offset */
299
300 HOWTO (R_PPLN15, /* type */
301 0, /* rightshift */
302 -2, /* size (0 = byte, 1 = short, 2 = long) */
303 15, /* bitsize */
304 FALSE, /* pc_relative */
305 0, /* bitpos */
306 complain_overflow_dont, /* complain_on_overflow */
307 NULL, /* special_function */
308 "PPLN15", /* name */
309 TRUE, /* partial_inplace */
310 0x7fff, /* src_mask */
311 0x7fff, /* dst_mask */
312 FALSE), /* pcrel_offset */
313
314 HOWTO (R_PPLN15W, /* type */
315 2, /* rightshift */
316 -2, /* size (0 = byte, 1 = short, 2 = long) */
317 15, /* bitsize */
318 FALSE, /* pc_relative */
319 0, /* bitpos */
320 complain_overflow_dont, /* complain_on_overflow */
321 NULL, /* special_function */
322 "PPLN15W", /* name */
323 TRUE, /* partial_inplace */
324 0x7fff, /* src_mask */
325 0x7fff, /* dst_mask */
326 FALSE), /* pcrel_offset */
327
328 HOWTO (R_PPLN15H, /* type */
329 1, /* rightshift */
330 -2, /* size (0 = byte, 1 = short, 2 = long) */
331 15, /* bitsize */
332 FALSE, /* pc_relative */
333 0, /* bitpos */
334 complain_overflow_dont, /* complain_on_overflow */
335 NULL, /* special_function */
336 "PPLN15H", /* name */
337 TRUE, /* partial_inplace */
338 0x7fff, /* src_mask */
339 0x7fff, /* dst_mask */
340 FALSE), /* pcrel_offset */
341
342 HOWTO (R_PPLN16B, /* type */
343 0, /* rightshift */
344 -2, /* size (0 = byte, 1 = short, 2 = long) */
345 15, /* bitsize */
346 FALSE, /* pc_relative */
347 0, /* bitpos */
348 complain_overflow_dont, /* complain_on_overflow */
349 local16_reloc, /* special_function */
350 "PPLN16B", /* name */
351 TRUE, /* partial_inplace */
352 0xffff, /* src_mask */
353 0xffff, /* dst_mask */
354 FALSE) /* pcrel_offset */
355 };
356
357 /* Special relocation functions, used when the output file is not
358 itself a COFF TIc80 file. */
359
360 /* This special function is used for the base address type
361 relocations. */
362
363 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)364 ppbase_reloc (bfd *abfd ATTRIBUTE_UNUSED,
365 arelent *reloc_entry ATTRIBUTE_UNUSED,
366 asymbol *symbol_in ATTRIBUTE_UNUSED,
367 void * data ATTRIBUTE_UNUSED,
368 asection *input_section ATTRIBUTE_UNUSED,
369 bfd *output_bfd ATTRIBUTE_UNUSED,
370 char **error_message ATTRIBUTE_UNUSED)
371 {
372 /* FIXME. */
373 abort ();
374 }
375
376 /* This special function is used for the global 15 bit relocations. */
377
378 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)379 glob15_reloc (bfd *abfd ATTRIBUTE_UNUSED,
380 arelent *reloc_entry ATTRIBUTE_UNUSED,
381 asymbol *symbol_in ATTRIBUTE_UNUSED,
382 void * data ATTRIBUTE_UNUSED,
383 asection *input_section ATTRIBUTE_UNUSED,
384 bfd *output_bfd ATTRIBUTE_UNUSED,
385 char **error_message ATTRIBUTE_UNUSED)
386 {
387 /* FIXME. */
388 abort ();
389 }
390
391 /* This special function is used for the global 16 bit relocations. */
392
393 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)394 glob16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
395 arelent *reloc_entry ATTRIBUTE_UNUSED,
396 asymbol *symbol_in ATTRIBUTE_UNUSED,
397 void * data ATTRIBUTE_UNUSED,
398 asection *input_section ATTRIBUTE_UNUSED,
399 bfd *output_bfd ATTRIBUTE_UNUSED,
400 char **error_message ATTRIBUTE_UNUSED)
401 {
402 /* FIXME. */
403 abort ();
404 }
405
406 /* This special function is used for the local 16 bit relocations. */
407
408 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)409 local16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
410 arelent *reloc_entry ATTRIBUTE_UNUSED,
411 asymbol *symbol_in ATTRIBUTE_UNUSED,
412 void * data ATTRIBUTE_UNUSED,
413 asection *input_section ATTRIBUTE_UNUSED,
414 bfd *output_bfd ATTRIBUTE_UNUSED,
415 char **error_message ATTRIBUTE_UNUSED)
416 {
417 /* FIXME. */
418 abort ();
419 }
420
421 /* Code to turn an external r_type into a pointer to an entry in the howto_table.
422 If passed an r_type we don't recognize the abort rather than silently failing
423 to generate an output file. */
424
425 static void
rtype2howto(arelent * cache_ptr,struct internal_reloc * dst)426 rtype2howto (arelent *cache_ptr, struct internal_reloc *dst)
427 {
428 unsigned int i;
429
430 for (i = 0; i < sizeof tic80_howto_table / sizeof tic80_howto_table[0]; i++)
431 {
432 if (tic80_howto_table[i].type == dst->r_type)
433 {
434 cache_ptr->howto = tic80_howto_table + i;
435 return;
436 }
437 }
438
439 (*_bfd_error_handler) (_("Unrecognized reloc type 0x%x"),
440 (unsigned int) dst->r_type);
441 cache_ptr->howto = tic80_howto_table + 0;
442 }
443
444 #define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst)
445 #define coff_rtype_to_howto coff_tic80_rtype_to_howto
446
447 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)448 coff_tic80_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
449 asection *sec,
450 struct internal_reloc *rel,
451 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
452 struct internal_syment *sym ATTRIBUTE_UNUSED,
453 bfd_vma *addendp)
454 {
455 arelent genrel;
456
457 if (rel -> r_symndx == -1 && addendp != NULL)
458 {
459 /* This is a TI "internal relocation", which means that the relocation
460 amount is the amount by which the current section is being relocated
461 in the output section. */
462 *addendp = (sec -> output_section -> vma + sec -> output_offset) - sec -> vma;
463 }
464 RTYPE2HOWTO (&genrel, rel);
465 return genrel.howto;
466 }
467
468 #ifndef BADMAG
469 #define BADMAG(x) TIC80BADMAG(x)
470 #endif
471
472 #define coff_relocate_section coff_tic80_relocate_section
473
474 /* We need a special relocation routine to handle the PP relocs. Most
475 of this is a copy of _bfd_coff_generic_relocate_section. */
476
477 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)478 coff_tic80_relocate_section (bfd *output_bfd,
479 struct bfd_link_info *info,
480 bfd *input_bfd,
481 asection *input_section,
482 bfd_byte *contents,
483 struct internal_reloc *relocs,
484 struct internal_syment *syms,
485 asection **sections)
486 {
487 struct internal_reloc *rel;
488 struct internal_reloc *relend;
489
490 rel = relocs;
491 relend = rel + input_section->reloc_count;
492 for (; rel < relend; rel++)
493 {
494 long symndx;
495 struct coff_link_hash_entry *h;
496 struct internal_syment *sym;
497 bfd_vma addend;
498 bfd_vma val;
499 reloc_howto_type *howto;
500 bfd_reloc_status_type rstat;
501 bfd_vma addr;
502
503 symndx = rel->r_symndx;
504
505 if (symndx == -1)
506 {
507 h = NULL;
508 sym = NULL;
509 }
510 else
511 {
512 h = obj_coff_sym_hashes (input_bfd)[symndx];
513 sym = syms + symndx;
514 }
515
516 /* COFF treats common symbols in one of two ways. Either the
517 size of the symbol is included in the section contents, or it
518 is not. We assume that the size is not included, and force
519 the rtype_to_howto function to adjust the addend as needed. */
520
521 if (sym != NULL && sym->n_scnum != 0)
522 addend = - sym->n_value;
523 else
524 addend = 0;
525
526 howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
527 sym, &addend);
528 if (howto == NULL)
529 return FALSE;
530
531 val = 0;
532
533 if (h == NULL)
534 {
535 asection *sec;
536
537 if (symndx == -1)
538 {
539 sec = bfd_abs_section_ptr;
540 val = 0;
541 }
542 else
543 {
544 sec = sections[symndx];
545 val = (sec->output_section->vma
546 + sec->output_offset
547 + sym->n_value);
548 if (! obj_pe (output_bfd))
549 val -= sec->vma;
550 }
551 }
552 else
553 {
554 if (h->root.type == bfd_link_hash_defined
555 || h->root.type == bfd_link_hash_defweak)
556 {
557 asection *sec;
558
559 sec = h->root.u.def.section;
560 val = (h->root.u.def.value
561 + sec->output_section->vma
562 + sec->output_offset);
563 }
564
565 else if (! bfd_link_relocatable (info))
566 (*info->callbacks->undefined_symbol)
567 (info, h->root.root.string, input_bfd, input_section,
568 rel->r_vaddr - input_section->vma, TRUE);
569 }
570
571 addr = rel->r_vaddr - input_section->vma;
572
573 /* FIXME: This code assumes little endian, but the PP can
574 apparently be bi-endian. I don't know if the bi-endianness
575 applies to the instruction set or just to the data. */
576 switch (howto->type)
577 {
578 default:
579 case R_ABS:
580 case R_RELLONGX:
581 case R_PPL15:
582 case R_PPL15W:
583 case R_PPL15H:
584 case R_PPLN15:
585 case R_PPLN15W:
586 case R_PPLN15H:
587 rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
588 contents, addr, val, addend);
589 break;
590
591 case R_PP15:
592 case R_PP15W:
593 case R_PP15H:
594 case R_PPN15:
595 case R_PPN15W:
596 case R_PPN15H:
597 /* Offset the address so that we can use 4 byte relocations. */
598 rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
599 contents + 2, addr, val, addend);
600 break;
601
602 case R_PP16B:
603 case R_PPN16B:
604 {
605 /* The most significant bit is stored in bit 6. */
606 bfd_byte hold;
607
608 hold = contents[addr + 4];
609 contents[addr + 4] &=~ 0x20;
610 contents[addr + 4] |= (contents[addr] >> 1) & 0x20;
611 rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
612 contents + 2, addr,
613 val, addend);
614 contents[addr] &=~ 0x40;
615 contents[addr] |= (contents[addr + 4] << 1) & 0x40;
616 contents[addr + 4] &=~ 0x20;
617 contents[addr + 4] |= hold & 0x20;
618 break;
619 }
620
621 case R_PPL16B:
622 case R_PPLN16B:
623 {
624 /* The most significant bit is stored in bit 28. */
625 bfd_byte hold;
626
627 hold = contents[addr + 1];
628 contents[addr + 1] &=~ 0x80;
629 contents[addr + 1] |= (contents[addr + 3] << 3) & 0x80;
630 rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
631 contents, addr,
632 val, addend);
633 contents[addr + 3] &= ~0x10;
634 contents[addr + 3] |= (contents[addr + 1] >> 3) & 0x10;
635 contents[addr + 1] &=~ 0x80;
636 contents[addr + 1] |= hold & 0x80;
637 break;
638 }
639
640 case R_PPBASE:
641 /* Parameter RAM is from 0x1000000 to 0x1000800. */
642 contents[addr] &=~ 0x3;
643 if (val >= 0x1000000 && val < 0x1000800)
644 contents[addr] |= 0x3;
645 else
646 contents[addr] |= 0x2;
647 rstat = bfd_reloc_ok;
648 break;
649
650 case R_PPLBASE:
651 /* Parameter RAM is from 0x1000000 to 0x1000800. */
652 contents[addr + 2] &= ~0xc0;
653 if (val >= 0x1000000 && val < 0x1000800)
654 contents[addr + 2] |= 0xc0;
655 else
656 contents[addr + 2] |= 0x80;
657 rstat = bfd_reloc_ok;
658 break;
659 }
660
661 switch (rstat)
662 {
663 default:
664 abort ();
665 case bfd_reloc_ok:
666 break;
667 case bfd_reloc_outofrange:
668 (*_bfd_error_handler)
669 (_("%B: bad reloc address 0x%lx in section `%A'"),
670 input_bfd, input_section, (unsigned long) rel->r_vaddr);
671 return FALSE;
672 case bfd_reloc_overflow:
673 {
674 const char *name;
675 char buf[SYMNMLEN + 1];
676
677 if (symndx == -1)
678 name = "*ABS*";
679 else if (h != NULL)
680 name = NULL;
681 else
682 {
683 name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
684 if (name == NULL)
685 return FALSE;
686 }
687
688 (*info->callbacks->reloc_overflow)
689 (info, (h ? &h->root : NULL), name, howto->name,
690 (bfd_vma) 0, input_bfd, input_section,
691 rel->r_vaddr - input_section->vma);
692 }
693 }
694 }
695 return TRUE;
696 }
697
698 #define TIC80COFF 1 /* Customize coffcode.h */
699 #undef C_AUTOARG /* Clashes with TIc80's C_UEXT */
700 #undef C_LASTENT /* Clashes with TIc80's C_STATLAB */
701
702 #ifndef bfd_pe_print_pdata
703 #define bfd_pe_print_pdata NULL
704 #endif
705
706 #include "coffcode.h"
707
708 CREATE_LITTLE_COFF_TARGET_VEC (tic80_coff_vec, "coff-tic80", D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE)
709