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[binutils.git] / bfd / coff-tic80.c
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252b5132 1/* BFD back-end for Texas Instruments TMS320C80 Multimedia Video Processor (MVP).
2c3fc389
NC		 2 Copyright 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
3 2012 Free Software Foundation, Inc.
252b5132
RH		 4
5 Written by Fred Fish (fnf@cygnus.com)
6
7 There is nothing new under the sun. This file draws a lot on other
8 coff files.
9
cd123cb7
NC		 10 This file is part of BFD, the Binary File Descriptor library.
11
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
16
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, 51 Franklin Street - Fifth Floor,
25 Boston, MA 02110-1301, USA. */
252b5132 26
3db64b00 27#include "sysdep.h"
252b5132
RH		 28#include "bfd.h"
29#include "bfdlink.h"
252b5132 30#include "libbfd.h"
74cc7600
DK		 31#ifdef _CONST
32/* Newlib-based hosts define _CONST as a STDC-safe alias for const,
33 but to the tic80 toolchain it means something altogether different.
34 Since sysdep.h will have pulled in stdio.h and hence _ansi.h which
35 contains this definition, we must undef it before including the
36 tic80-specific definition. */
37#undef _CONST
38#endif /* _CONST */
252b5132
RH		 39#include "coff/tic80.h"
40#include "coff/internal.h"
41#include "libcoff.h"
42
43#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
44#define COFF_ALIGN_IN_SECTION_HEADER 1
45#define COFF_ALIGN_IN_SFLAGS 1
46
dc810e39
AM		 47#define GET_SCNHDR_FLAGS H_GET_16
48#define PUT_SCNHDR_FLAGS H_PUT_16
252b5132 49
252b5132 50static bfd_reloc_status_type ppbase_reloc
2c3fc389 51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 52static bfd_reloc_status_type glob15_reloc
2c3fc389 53 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 54static bfd_reloc_status_type glob16_reloc
2c3fc389 55 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 56static bfd_reloc_status_type local16_reloc
2c3fc389
NC		 57 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
58
252b5132
RH		 59
60static reloc_howto_type tic80_howto_table[] =
61{
62
63 HOWTO (R_RELLONG, /* type */
64 0, /* rightshift */
65 2, /* size (0 = byte, 1 = short, 2 = long) */
66 32, /* bitsize */
b34976b6 67 FALSE, /* pc_relative */
252b5132
RH		 68 0, /* bitpos */
69 complain_overflow_bitfield, /* complain_on_overflow */
70 NULL, /* special_function */
71 "RELLONG", /* name */
b34976b6 72 TRUE, /* partial_inplace */
252b5132
RH		 73 0xffffffff, /* src_mask */
74 0xffffffff, /* dst_mask */
b34976b6 75 FALSE), /* pcrel_offset */
252b5132
RH		 76
77 HOWTO (R_MPPCR, /* type */
78 2, /* rightshift */
79 2, /* size (0 = byte, 1 = short, 2 = long) */
80 32, /* bitsize */
b34976b6 81 TRUE, /* pc_relative */
252b5132
RH		 82 0, /* bitpos */
83 complain_overflow_signed, /* complain_on_overflow */
84 NULL, /* special_function */
85 "MPPCR", /* name */
b34976b6 86 TRUE, /* partial_inplace */
252b5132
RH		 87 0xffffffff, /* src_mask */
88 0xffffffff, /* dst_mask */
b34976b6 89 TRUE), /* pcrel_offset */
252b5132
RH		 90
91 HOWTO (R_ABS, /* type */
92 0, /* rightshift */
93 2, /* size (0 = byte, 1 = short, 2 = long) */
94 32, /* bitsize */
b34976b6 95 FALSE, /* pc_relative */
252b5132
RH		 96 0, /* bitpos */
97 complain_overflow_bitfield, /* complain_on_overflow */
98 NULL, /* special_function */
99 "ABS", /* name */
b34976b6 100 TRUE, /* partial_inplace */
252b5132
RH		 101 0xffffffff, /* src_mask */
102 0xffffffff, /* dst_mask */
b34976b6 103 FALSE), /* pcrel_offset */
252b5132
RH		 104
105 HOWTO (R_PPBASE, /* type */
106 0, /* rightshift */
107 2, /* size (0 = byte, 1 = short, 2 = long) */
108 32, /* bitsize */
b34976b6 109 FALSE, /* pc_relative */
252b5132
RH		 110 0, /* bitpos */
111 complain_overflow_dont, /* complain_on_overflow */
112 ppbase_reloc, /* special_function */
113 "PPBASE", /* name */
b34976b6 114 TRUE, /* partial_inplace */
252b5132
RH		 115 0xffffffff, /* src_mask */
116 0xffffffff, /* dst_mask */
b34976b6 117 FALSE), /* pcrel_offset */
252b5132
RH		 118
119 HOWTO (R_PPLBASE, /* type */
120 0, /* rightshift */
121 2, /* size (0 = byte, 1 = short, 2 = long) */
122 32, /* bitsize */
b34976b6 123 FALSE, /* pc_relative */
252b5132
RH		 124 0, /* bitpos */
125 complain_overflow_dont, /* complain_on_overflow */
126 ppbase_reloc, /* special_function */
127 "PPLBASE", /* name */
b34976b6 128 TRUE, /* partial_inplace */
252b5132
RH		 129 0xffffffff, /* src_mask */
130 0xffffffff, /* dst_mask */
b34976b6 131 FALSE), /* pcrel_offset */
252b5132
RH		 132
133 HOWTO (R_PP15, /* type */
134 0, /* rightshift */
135 2, /* size (0 = byte, 1 = short, 2 = long) */
136 15, /* bitsize */
b34976b6 137 FALSE, /* pc_relative */
252b5132
RH		 138 6, /* bitpos */
139 complain_overflow_dont, /* complain_on_overflow */
140 glob15_reloc, /* special_function */
141 "PP15", /* name */
b34976b6 142 TRUE, /* partial_inplace */
252b5132
RH		 143 0x1ffc0, /* src_mask */
144 0x1ffc0, /* dst_mask */
b34976b6 145 FALSE), /* pcrel_offset */
252b5132
RH		 146
147 HOWTO (R_PP15W, /* type */
148 2, /* rightshift */
149 2, /* size (0 = byte, 1 = short, 2 = long) */
150 15, /* bitsize */
b34976b6 151 FALSE, /* pc_relative */
252b5132
RH		 152 6, /* bitpos */
153 complain_overflow_dont, /* complain_on_overflow */
154 glob15_reloc, /* special_function */
155 "PP15W", /* name */
b34976b6 156 TRUE, /* partial_inplace */
252b5132
RH		 157 0x1ffc0, /* src_mask */
158 0x1ffc0, /* dst_mask */
b34976b6 159 FALSE), /* pcrel_offset */
252b5132
RH		 160
161 HOWTO (R_PP15H, /* type */
162 1, /* rightshift */
163 2, /* size (0 = byte, 1 = short, 2 = long) */
164 15, /* bitsize */
b34976b6 165 FALSE, /* pc_relative */
252b5132
RH		 166 6, /* bitpos */
167 complain_overflow_dont, /* complain_on_overflow */
168 glob15_reloc, /* special_function */
169 "PP15H", /* name */
b34976b6 170 TRUE, /* partial_inplace */
252b5132
RH		 171 0x1ffc0, /* src_mask */
172 0x1ffc0, /* dst_mask */
b34976b6 173 FALSE), /* pcrel_offset */
252b5132
RH		 174
175 HOWTO (R_PP16B, /* type */
176 0, /* rightshift */
177 2, /* size (0 = byte, 1 = short, 2 = long) */
178 16, /* bitsize */
b34976b6 179 FALSE, /* pc_relative */
252b5132
RH		 180 6, /* bitpos */
181 complain_overflow_dont, /* complain_on_overflow */
182 glob16_reloc, /* special_function */
183 "PP16B", /* name */
b34976b6 184 TRUE, /* partial_inplace */
252b5132
RH		 185 0x3ffc0, /* src_mask */
186 0x3ffc0, /* dst_mask */
b34976b6 187 FALSE), /* pcrel_offset */
252b5132
RH		 188
189 HOWTO (R_PPL15, /* type */
190 0, /* rightshift */
191 2, /* size (0 = byte, 1 = short, 2 = long) */
192 15, /* bitsize */
b34976b6 193 FALSE, /* pc_relative */
252b5132
RH		 194 0, /* bitpos */
195 complain_overflow_dont, /* complain_on_overflow */
196 NULL, /* special_function */
197 "PPL15", /* name */
b34976b6 198 TRUE, /* partial_inplace */
252b5132
RH		 199 0x7fff, /* src_mask */
200 0x7fff, /* dst_mask */
b34976b6 201 FALSE), /* pcrel_offset */
252b5132
RH		 202
203 HOWTO (R_PPL15W, /* type */
204 2, /* rightshift */
205 2, /* size (0 = byte, 1 = short, 2 = long) */
206 15, /* bitsize */
b34976b6 207 FALSE, /* pc_relative */
252b5132
RH		 208 0, /* bitpos */
209 complain_overflow_dont, /* complain_on_overflow */
210 NULL, /* special_function */
211 "PPL15W", /* name */
b34976b6 212 TRUE, /* partial_inplace */
252b5132
RH		 213 0x7fff, /* src_mask */
214 0x7fff, /* dst_mask */
b34976b6 215 FALSE), /* pcrel_offset */
252b5132
RH		 216
217 HOWTO (R_PPL15H, /* type */
218 1, /* rightshift */
219 2, /* size (0 = byte, 1 = short, 2 = long) */
220 15, /* bitsize */
b34976b6 221 FALSE, /* pc_relative */
252b5132
RH		 222 0, /* bitpos */
223 complain_overflow_dont, /* complain_on_overflow */
224 NULL, /* special_function */
225 "PPL15H", /* name */
b34976b6 226 TRUE, /* partial_inplace */
252b5132
RH		 227 0x7fff, /* src_mask */
228 0x7fff, /* dst_mask */
b34976b6 229 FALSE), /* pcrel_offset */
252b5132
RH		 230
231 HOWTO (R_PPL16B, /* type */
232 0, /* rightshift */
233 2, /* size (0 = byte, 1 = short, 2 = long) */
234 16, /* bitsize */
b34976b6 235 FALSE, /* pc_relative */
252b5132
RH		 236 0, /* bitpos */
237 complain_overflow_dont, /* complain_on_overflow */
238 local16_reloc, /* special_function */
239 "PPL16B", /* name */
b34976b6 240 TRUE, /* partial_inplace */
252b5132
RH		 241 0xffff, /* src_mask */
242 0xffff, /* dst_mask */
b34976b6 243 FALSE), /* pcrel_offset */
252b5132
RH		 244
245 HOWTO (R_PPN15, /* type */
246 0, /* rightshift */
247 -2, /* size (0 = byte, 1 = short, 2 = long) */
248 15, /* bitsize */
b34976b6 249 FALSE, /* pc_relative */
252b5132
RH		 250 6, /* bitpos */
251 complain_overflow_dont, /* complain_on_overflow */
252 glob15_reloc, /* special_function */
253 "PPN15", /* name */
b34976b6 254 TRUE, /* partial_inplace */
252b5132
RH		 255 0x1ffc0, /* src_mask */
256 0x1ffc0, /* dst_mask */
b34976b6 257 FALSE), /* pcrel_offset */
252b5132
RH		 258
259 HOWTO (R_PPN15W, /* type */
260 2, /* rightshift */
261 -2, /* size (0 = byte, 1 = short, 2 = long) */
262 15, /* bitsize */
b34976b6 263 FALSE, /* pc_relative */
252b5132
RH		 264 6, /* bitpos */
265 complain_overflow_dont, /* complain_on_overflow */
266 glob15_reloc, /* special_function */
267 "PPN15W", /* name */
b34976b6 268 TRUE, /* partial_inplace */
252b5132
RH		 269 0x1ffc0, /* src_mask */
270 0x1ffc0, /* dst_mask */
b34976b6 271 FALSE), /* pcrel_offset */
252b5132
RH		 272
273 HOWTO (R_PPN15H, /* type */
274 1, /* rightshift */
275 -2, /* size (0 = byte, 1 = short, 2 = long) */
276 15, /* bitsize */
b34976b6 277 FALSE, /* pc_relative */
252b5132
RH		 278 6, /* bitpos */
279 complain_overflow_dont, /* complain_on_overflow */
280 glob15_reloc, /* special_function */
281 "PPN15H", /* name */
b34976b6 282 TRUE, /* partial_inplace */
252b5132
RH		 283 0x1ffc0, /* src_mask */
284 0x1ffc0, /* dst_mask */
b34976b6 285 FALSE), /* pcrel_offset */
252b5132
RH		 286
287 HOWTO (R_PPN16B, /* type */
288 0, /* rightshift */
289 -2, /* size (0 = byte, 1 = short, 2 = long) */
290 16, /* bitsize */
b34976b6 291 FALSE, /* pc_relative */
252b5132
RH		 292 6, /* bitpos */
293 complain_overflow_dont, /* complain_on_overflow */
294 glob16_reloc, /* special_function */
295 "PPN16B", /* name */
b34976b6 296 TRUE, /* partial_inplace */
252b5132
RH		 297 0x3ffc0, /* src_mask */
298 0x3ffc0, /* dst_mask */
b34976b6 299 FALSE), /* pcrel_offset */
252b5132
RH		 300
301 HOWTO (R_PPLN15, /* type */
302 0, /* rightshift */
303 -2, /* size (0 = byte, 1 = short, 2 = long) */
304 15, /* bitsize */
b34976b6 305 FALSE, /* pc_relative */
252b5132
RH		 306 0, /* bitpos */
307 complain_overflow_dont, /* complain_on_overflow */
308 NULL, /* special_function */
309 "PPLN15", /* name */
b34976b6 310 TRUE, /* partial_inplace */
252b5132
RH		 311 0x7fff, /* src_mask */
312 0x7fff, /* dst_mask */
b34976b6 313 FALSE), /* pcrel_offset */
252b5132
RH		 314
315 HOWTO (R_PPLN15W, /* type */
316 2, /* rightshift */
317 -2, /* size (0 = byte, 1 = short, 2 = long) */
318 15, /* bitsize */
b34976b6 319 FALSE, /* pc_relative */
252b5132
RH		 320 0, /* bitpos */
321 complain_overflow_dont, /* complain_on_overflow */
322 NULL, /* special_function */
323 "PPLN15W", /* name */
b34976b6 324 TRUE, /* partial_inplace */
252b5132
RH		 325 0x7fff, /* src_mask */
326 0x7fff, /* dst_mask */
b34976b6 327 FALSE), /* pcrel_offset */
252b5132
RH		 328
329 HOWTO (R_PPLN15H, /* type */
330 1, /* rightshift */
331 -2, /* size (0 = byte, 1 = short, 2 = long) */
332 15, /* bitsize */
b34976b6 333 FALSE, /* pc_relative */
252b5132
RH		 334 0, /* bitpos */
335 complain_overflow_dont, /* complain_on_overflow */
336 NULL, /* special_function */
337 "PPLN15H", /* name */
b34976b6 338 TRUE, /* partial_inplace */
252b5132
RH		 339 0x7fff, /* src_mask */
340 0x7fff, /* dst_mask */
b34976b6 341 FALSE), /* pcrel_offset */
252b5132
RH		 342
343 HOWTO (R_PPLN16B, /* type */
344 0, /* rightshift */
345 -2, /* size (0 = byte, 1 = short, 2 = long) */
346 15, /* bitsize */
b34976b6 347 FALSE, /* pc_relative */
252b5132
RH		 348 0, /* bitpos */
349 complain_overflow_dont, /* complain_on_overflow */
350 local16_reloc, /* special_function */
351 "PPLN16B", /* name */
b34976b6 352 TRUE, /* partial_inplace */
252b5132
RH		 353 0xffff, /* src_mask */
354 0xffff, /* dst_mask */
b34976b6 355 FALSE) /* pcrel_offset */
252b5132
RH		 356};
357\f
358/* Special relocation functions, used when the output file is not
359 itself a COFF TIc80 file. */
360
361/* This special function is used for the base address type
362 relocations. */
363
364static bfd_reloc_status_type
2c3fc389
NC		 365ppbase_reloc (bfd *abfd ATTRIBUTE_UNUSED,
366 arelent *reloc_entry ATTRIBUTE_UNUSED,
367 asymbol *symbol_in ATTRIBUTE_UNUSED,
368 void * data ATTRIBUTE_UNUSED,
369 asection *input_section ATTRIBUTE_UNUSED,
370 bfd *output_bfd ATTRIBUTE_UNUSED,
371 char **error_message ATTRIBUTE_UNUSED)
252b5132
RH		 372{
373 /* FIXME. */
374 abort ();
375}
376
377/* This special function is used for the global 15 bit relocations. */
378
379static bfd_reloc_status_type
2c3fc389
NC		 380glob15_reloc (bfd *abfd ATTRIBUTE_UNUSED,
381 arelent *reloc_entry ATTRIBUTE_UNUSED,
382 asymbol *symbol_in ATTRIBUTE_UNUSED,
383 void * data ATTRIBUTE_UNUSED,
384 asection *input_section ATTRIBUTE_UNUSED,
385 bfd *output_bfd ATTRIBUTE_UNUSED,
386 char **error_message ATTRIBUTE_UNUSED)
252b5132
RH		 387{
388 /* FIXME. */
389 abort ();
390}
391
392/* This special function is used for the global 16 bit relocations. */
393
394static bfd_reloc_status_type
2c3fc389
NC		 395glob16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
396 arelent *reloc_entry ATTRIBUTE_UNUSED,
397 asymbol *symbol_in ATTRIBUTE_UNUSED,
398 void * data ATTRIBUTE_UNUSED,
399 asection *input_section ATTRIBUTE_UNUSED,
400 bfd *output_bfd ATTRIBUTE_UNUSED,
401 char **error_message ATTRIBUTE_UNUSED)
252b5132
RH		 402{
403 /* FIXME. */
404 abort ();
405}
406
407/* This special function is used for the local 16 bit relocations. */
408
409static bfd_reloc_status_type
2c3fc389
NC		 410local16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
411 arelent *reloc_entry ATTRIBUTE_UNUSED,
412 asymbol *symbol_in ATTRIBUTE_UNUSED,
413 void * data ATTRIBUTE_UNUSED,
414 asection *input_section ATTRIBUTE_UNUSED,
415 bfd *output_bfd ATTRIBUTE_UNUSED,
416 char **error_message ATTRIBUTE_UNUSED)
252b5132
RH		 417{
418 /* FIXME. */
419 abort ();
420}
421\f
422/* Code to turn an external r_type into a pointer to an entry in the howto_table.
423 If passed an r_type we don't recognize the abort rather than silently failing
cbfe05c4 424 to generate an output file. */
252b5132
RH		 425
426static void
2c3fc389 427rtype2howto (arelent *cache_ptr, struct internal_reloc *dst)
252b5132
RH		 428{
429 unsigned int i;
430
431 for (i = 0; i < sizeof tic80_howto_table / sizeof tic80_howto_table[0]; i++)
432 {
433 if (tic80_howto_table[i].type == dst->r_type)
434 {
435 cache_ptr->howto = tic80_howto_table + i;
436 return;
437 }
438 }
439
440 (*_bfd_error_handler) (_("Unrecognized reloc type 0x%x"),
441 (unsigned int) dst->r_type);
442 cache_ptr->howto = tic80_howto_table + 0;
443}
444
445#define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst)
446#define coff_rtype_to_howto coff_tic80_rtype_to_howto
447
448static reloc_howto_type *
2c3fc389
NC		 449coff_tic80_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
450 asection *sec,
451 struct internal_reloc *rel,
452 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
453 struct internal_syment *sym ATTRIBUTE_UNUSED,
454 bfd_vma *addendp)
252b5132
RH		 455{
456 arelent genrel;
457
458 if (rel -> r_symndx == -1 && addendp != NULL)
459 {
460 /* This is a TI "internal relocation", which means that the relocation
461 amount is the amount by which the current section is being relocated
cbfe05c4 462 in the output section. */
252b5132
RH		 463 *addendp = (sec -> output_section -> vma + sec -> output_offset) - sec -> vma;
464 }
465 RTYPE2HOWTO (&genrel, rel);
466 return genrel.howto;
467}
468
469#ifndef BADMAG
470#define BADMAG(x) TIC80BADMAG(x)
471#endif
472\f
473#define coff_relocate_section coff_tic80_relocate_section
474
475/* We need a special relocation routine to handle the PP relocs. Most
476 of this is a copy of _bfd_coff_generic_relocate_section. */
477
b34976b6 478static bfd_boolean
2c3fc389
NC		 479coff_tic80_relocate_section (bfd *output_bfd,
480 struct bfd_link_info *info,
481 bfd *input_bfd,
482 asection *input_section,
483 bfd_byte *contents,
484 struct internal_reloc *relocs,
485 struct internal_syment *syms,
486 asection **sections)
252b5132
RH		 487{
488 struct internal_reloc *rel;
489 struct internal_reloc *relend;
490
491 rel = relocs;
492 relend = rel + input_section->reloc_count;
493 for (; rel < relend; rel++)
494 {
495 long symndx;
496 struct coff_link_hash_entry *h;
497 struct internal_syment *sym;
498 bfd_vma addend;
499 bfd_vma val;
500 reloc_howto_type *howto;
501 bfd_reloc_status_type rstat;
502 bfd_vma addr;
503
504 symndx = rel->r_symndx;
505
506 if (symndx == -1)
507 {
508 h = NULL;
509 sym = NULL;
510 }
511 else
cbfe05c4 512 {
252b5132
RH		 513 h = obj_coff_sym_hashes (input_bfd)[symndx];
514 sym = syms + symndx;
515 }
516
517 /* COFF treats common symbols in one of two ways. Either the
518 size of the symbol is included in the section contents, or it
519 is not. We assume that the size is not included, and force
520 the rtype_to_howto function to adjust the addend as needed. */
521
522 if (sym != NULL && sym->n_scnum != 0)
523 addend = - sym->n_value;
524 else
525 addend = 0;
526
527 howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
528 sym, &addend);
529 if (howto == NULL)
b34976b6 530 return FALSE;
252b5132
RH		 531
532 val = 0;
533
534 if (h == NULL)
535 {
536 asection *sec;
537
538 if (symndx == -1)
539 {
540 sec = bfd_abs_section_ptr;
541 val = 0;
542 }
543 else
544 {
545 sec = sections[symndx];
546 val = (sec->output_section->vma
547 + sec->output_offset
548 + sym->n_value);
549 if (! obj_pe (output_bfd))
550 val -= sec->vma;
551 }
552 }
553 else
554 {
555 if (h->root.type == bfd_link_hash_defined
556 || h->root.type == bfd_link_hash_defweak)
557 {
558 asection *sec;
559
560 sec = h->root.u.def.section;
561 val = (h->root.u.def.value
562 + sec->output_section->vma
563 + sec->output_offset);
564 }
565
1049f94e 566 else if (! info->relocatable)
252b5132
RH		 567 {
568 if (! ((*info->callbacks->undefined_symbol)
569 (info, h->root.root.string, input_bfd, input_section,
b34976b6
AM		 570 rel->r_vaddr - input_section->vma, TRUE)))
571 return FALSE;
252b5132
RH		 572 }
573 }
574
575 addr = rel->r_vaddr - input_section->vma;
576
577 /* FIXME: This code assumes little endian, but the PP can
578 apparently be bi-endian. I don't know if the bi-endianness
579 applies to the instruction set or just to the data. */
580 switch (howto->type)
581 {
582 default:
583 case R_ABS:
584 case R_RELLONGX:
585 case R_PPL15:
586 case R_PPL15W:
587 case R_PPL15H:
588 case R_PPLN15:
589 case R_PPLN15W:
590 case R_PPLN15H:
591 rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
592 contents, addr, val, addend);
593 break;
594
595 case R_PP15:
596 case R_PP15W:
597 case R_PP15H:
598 case R_PPN15:
599 case R_PPN15W:
600 case R_PPN15H:
601 /* Offset the address so that we can use 4 byte relocations. */
602 rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
603 contents + 2, addr, val, addend);
604 break;
605
606 case R_PP16B:
607 case R_PPN16B:
608 {
609 /* The most significant bit is stored in bit 6. */
610 bfd_byte hold;
611
612 hold = contents[addr + 4];
613 contents[addr + 4] &=~ 0x20;
614 contents[addr + 4] |= (contents[addr] >> 1) & 0x20;
615 rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
616 contents + 2, addr,
617 val, addend);
618 contents[addr] &=~ 0x40;
619 contents[addr] |= (contents[addr + 4] << 1) & 0x40;
620 contents[addr + 4] &=~ 0x20;
621 contents[addr + 4] |= hold & 0x20;
622 break;
623 }
624
625 case R_PPL16B:
626 case R_PPLN16B:
627 {
628 /* The most significant bit is stored in bit 28. */
629 bfd_byte hold;
630
631 hold = contents[addr + 1];
632 contents[addr + 1] &=~ 0x80;
633 contents[addr + 1] |= (contents[addr + 3] << 3) & 0x80;
634 rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
635 contents, addr,
636 val, addend);
637 contents[addr + 3] &= ~0x10;
638 contents[addr + 3] |= (contents[addr + 1] >> 3) & 0x10;
639 contents[addr + 1] &=~ 0x80;
640 contents[addr + 1] |= hold & 0x80;
641 break;
642 }
cbfe05c4 643
252b5132
RH		 644 case R_PPBASE:
645 /* Parameter RAM is from 0x1000000 to 0x1000800. */
646 contents[addr] &=~ 0x3;
647 if (val >= 0x1000000 && val < 0x1000800)
648 contents[addr] |= 0x3;
649 else
650 contents[addr] |= 0x2;
651 rstat = bfd_reloc_ok;
652 break;
653
654 case R_PPLBASE:
655 /* Parameter RAM is from 0x1000000 to 0x1000800. */
656 contents[addr + 2] &= ~0xc0;
657 if (val >= 0x1000000 && val < 0x1000800)
658 contents[addr + 2] |= 0xc0;
659 else
660 contents[addr + 2] |= 0x80;
661 rstat = bfd_reloc_ok;
662 break;
663 }
664
665 switch (rstat)
666 {
667 default:
668 abort ();
669 case bfd_reloc_ok:
670 break;
671 case bfd_reloc_outofrange:
672 (*_bfd_error_handler)
d003868e
AM		 673 (_("%B: bad reloc address 0x%lx in section `%A'"),
674 input_bfd, input_section, (unsigned long) rel->r_vaddr);
b34976b6 675 return FALSE;
252b5132
RH		 676 case bfd_reloc_overflow:
677 {
678 const char *name;
679 char buf[SYMNMLEN + 1];
680
681 if (symndx == -1)
682 name = "*ABS*";
683 else if (h != NULL)
dfeffb9f 684 name = NULL;
252b5132
RH		 685 else
686 {
687 name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
688 if (name == NULL)
b34976b6 689 return FALSE;
252b5132
RH		 690 }
691
692 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L		 693 (info, (h ? &h->root : NULL), name, howto->name,
694 (bfd_vma) 0, input_bfd, input_section,
695 rel->r_vaddr - input_section->vma)))
b34976b6 696 return FALSE;
252b5132
RH		 697 }
698 }
699 }
b34976b6 700 return TRUE;
252b5132
RH		 701}
702\f
9a5d8e72
L		 703/* Clear the r_reserved field in relocs. */
704#define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \
705 do \
706 { \
707 dst->r_reserved[0] = 0; \
708 dst->r_reserved[1] = 0; \
709 } \
710 while (0)
711
252b5132
RH		 712#define TIC80COFF 1 /* Customize coffcode.h */
713#undef C_AUTOARG /* Clashes with TIc80's C_UEXT */
714#undef C_LASTENT /* Clashes with TIc80's C_STATLAB */
2b5c217d
NC		 715
716#ifndef bfd_pe_print_pdata
717#define bfd_pe_print_pdata NULL
718#endif
719
252b5132
RH		 720#include "coffcode.h"
721
3fa78519 722CREATE_LITTLE_COFF_TARGET_VEC (tic80coff_vec, "coff-tic80", D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE)
Empty description
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