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40b36596 1/* 32-bit ELF support for TI C6X
ac145307 2 Copyright 2010, 2011
40b36596 3 Free Software Foundation, Inc.
c0621d88
NS		 4 Contributed by Joseph Myers <joseph@codesourcery.com>
5 Bernd Schmidt <bernds@codesourcery.com>
40b36596
JM		 6
7 This file is part of BFD, the Binary File Descriptor library.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
23
24#include "sysdep.h"
25#include "bfd.h"
26#include "libbfd.h"
27#include "libiberty.h"
28#include "elf-bfd.h"
29#include "elf/tic6x.h"
41820509
JM		 30#include "elf32-tic6x.h"
31
ac145307
BS		 32#define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0"
33
34/* DSBT binaries have a default 128K stack. */
35#define DEFAULT_STACK_SIZE 0x20000
36
37/* The size in bytes of an entry in the procedure linkage table. */
38#define PLT_ENTRY_SIZE 24
39
40/* TI C6X ELF linker hash table. */
41
42struct elf32_tic6x_link_hash_table
43{
44 struct elf_link_hash_table elf;
45
46 /* Short-cuts to get to dynamic linker sections. */
47 asection *sdynbss;
48 asection *srelbss;
49
50 /* C6X specific command line arguments. */
51 struct elf32_tic6x_params params;
52
53 /* Small local sym cache. */
54 struct sym_cache sym_cache;
55
56 /* The output BFD, for convenience. */
57 bfd *obfd;
58
59 /* The .dsbt section. */
60 asection *dsbt;
61};
62
63/* Get the TI C6X ELF linker hash table from a link_info structure. */
64
65#define elf32_tic6x_hash_table(p) \
66 ((struct elf32_tic6x_link_hash_table *) ((p)->hash))
67
68/* TI C6X ELF linker hash entry. */
69
70struct elf32_tic6x_link_hash_entry
71{
72 struct elf_link_hash_entry elf;
73
74 /* Track dynamic relocs copied for this symbol. */
75 struct elf_dyn_relocs *dyn_relocs;
76};
77
41820509
JM		 78struct elf32_tic6x_obj_tdata
79{
80 struct elf_obj_tdata root;
81
82 /* Whether to use RELA relocations when generating relocations.
83 This is a per-object flag to allow the assembler to generate REL
84 relocations for use in linker testcases. */
85 bfd_boolean use_rela_p;
86};
87
88#define elf32_tic6x_tdata(abfd) \
89 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
40b36596 90
ac145307
BS		 91#define is_tic6x_elf(bfd) \
92 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
93 && elf_tdata (bfd) != NULL \
94 && elf_object_id (bfd) == TIC6X_ELF_DATA)
95
96/* C6X ELF uses two common sections. One is the usual one, and the
97 other is for small objects. All the small objects are kept
98 together, and then referenced via the gp pointer, which yields
99 faster assembler code. This is what we use for the small common
100 section. This approach is copied from ecoff.c. */
101static asection tic6x_elf_scom_section;
102static asymbol tic6x_elf_scom_symbol;
103static asymbol *tic6x_elf_scom_symbol_ptr;
104
40b36596
JM		 105static reloc_howto_type elf32_tic6x_howto_table[] =
106{
107 HOWTO (R_C6000_NONE, /* type */
108 0, /* rightshift */
109 0, /* size (0 = byte, 1 = short, 2 = long) */
110 0, /* bitsize */
111 FALSE, /* pc_relative */
112 0, /* bitpos */
113 complain_overflow_dont,/* complain_on_overflow */
114 bfd_elf_generic_reloc, /* special_function */
115 "R_C6000_NONE", /* name */
41820509
JM		 116 FALSE, /* partial_inplace */
117 0, /* src_mask */
118 0, /* dst_mask */
119 FALSE), /* pcrel_offset */
120 HOWTO (R_C6000_ABS32, /* type */
121 0, /* rightshift */
122 2, /* size (0 = byte, 1 = short, 2 = long) */
123 32, /* bitsize */
124 FALSE, /* pc_relative */
125 0, /* bitpos */
126 complain_overflow_dont,/* complain_on_overflow */
127 bfd_elf_generic_reloc, /* special_function */
128 "R_C6000_ABS32", /* name */
129 FALSE, /* partial_inplace */
130 0, /* src_mask */
131 0xffffffff, /* dst_mask */
132 FALSE), /* pcrel_offset */
133 HOWTO (R_C6000_ABS16, /* type */
134 0, /* rightshift */
135 1, /* size (0 = byte, 1 = short, 2 = long) */
136 16, /* bitsize */
137 FALSE, /* pc_relative */
138 0, /* bitpos */
139 complain_overflow_bitfield,/* complain_on_overflow */
140 bfd_elf_generic_reloc, /* special_function */
141 "R_C6000_ABS16", /* name */
142 FALSE, /* partial_inplace */
143 0, /* src_mask */
144 0x0000ffff, /* dst_mask */
145 FALSE), /* pcrel_offset */
146 HOWTO (R_C6000_ABS8, /* type */
147 0, /* rightshift */
148 0, /* size (0 = byte, 1 = short, 2 = long) */
149 8, /* bitsize */
150 FALSE, /* pc_relative */
151 0, /* bitpos */
152 complain_overflow_bitfield,/* complain_on_overflow */
153 bfd_elf_generic_reloc, /* special_function */
154 "R_C6000_ABS8", /* name */
155 FALSE, /* partial_inplace */
156 0, /* src_mask */
157 0x000000ff, /* dst_mask */
158 FALSE), /* pcrel_offset */
159 HOWTO (R_C6000_PCR_S21, /* type */
160 2, /* rightshift */
161 2, /* size (0 = byte, 1 = short, 2 = long) */
162 21, /* bitsize */
163 TRUE, /* pc_relative */
164 7, /* bitpos */
165 complain_overflow_signed,/* complain_on_overflow */
166 bfd_elf_generic_reloc, /* special_function */
167 "R_C6000_PCR_S21", /* name */
168 FALSE, /* partial_inplace */
169 0, /* src_mask */
170 0x0fffff80, /* dst_mask */
171 TRUE), /* pcrel_offset */
172 HOWTO (R_C6000_PCR_S12, /* type */
173 2, /* rightshift */
174 2, /* size (0 = byte, 1 = short, 2 = long) */
175 12, /* bitsize */
176 TRUE, /* pc_relative */
177 16, /* bitpos */
178 complain_overflow_signed,/* complain_on_overflow */
179 bfd_elf_generic_reloc, /* special_function */
180 "R_C6000_PCR_S12", /* name */
181 FALSE, /* partial_inplace */
182 0, /* src_mask */
183 0x0fff0000, /* dst_mask */
184 TRUE), /* pcrel_offset */
185 HOWTO (R_C6000_PCR_S10, /* type */
186 2, /* rightshift */
187 2, /* size (0 = byte, 1 = short, 2 = long) */
188 10, /* bitsize */
189 TRUE, /* pc_relative */
190 13, /* bitpos */
191 complain_overflow_signed,/* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_C6000_PCR_S10", /* name */
194 FALSE, /* partial_inplace */
195 0, /* src_mask */
196 0x007fe000, /* dst_mask */
197 TRUE), /* pcrel_offset */
198 HOWTO (R_C6000_PCR_S7, /* type */
199 2, /* rightshift */
200 2, /* size (0 = byte, 1 = short, 2 = long) */
201 7, /* bitsize */
202 TRUE, /* pc_relative */
203 16, /* bitpos */
204 complain_overflow_signed,/* complain_on_overflow */
205 bfd_elf_generic_reloc, /* special_function */
206 "R_C6000_PCR_S7", /* name */
207 FALSE, /* partial_inplace */
208 0, /* src_mask */
209 0x007f0000, /* dst_mask */
210 TRUE), /* pcrel_offset */
211 HOWTO (R_C6000_ABS_S16, /* type */
212 0, /* rightshift */
213 2, /* size (0 = byte, 1 = short, 2 = long) */
214 16, /* bitsize */
215 FALSE, /* pc_relative */
216 7, /* bitpos */
217 complain_overflow_signed,/* complain_on_overflow */
218 bfd_elf_generic_reloc, /* special_function */
219 "R_C6000_ABS_S16", /* name */
220 FALSE, /* partial_inplace */
221 0, /* src_mask */
222 0x007fff80, /* dst_mask */
223 FALSE), /* pcrel_offset */
224 HOWTO (R_C6000_ABS_L16, /* type */
225 0, /* rightshift */
226 2, /* size (0 = byte, 1 = short, 2 = long) */
227 16, /* bitsize */
228 FALSE, /* pc_relative */
229 7, /* bitpos */
230 complain_overflow_dont,/* complain_on_overflow */
231 bfd_elf_generic_reloc, /* special_function */
232 "R_C6000_ABS_L16", /* name */
233 FALSE, /* partial_inplace */
234 0, /* src_mask */
235 0x007fff80, /* dst_mask */
236 FALSE), /* pcrel_offset */
237 HOWTO (R_C6000_ABS_H16, /* type */
238 16, /* rightshift */
239 2, /* size (0 = byte, 1 = short, 2 = long) */
240 16, /* bitsize */
241 FALSE, /* pc_relative */
242 7, /* bitpos */
243 complain_overflow_dont,/* complain_on_overflow */
244 bfd_elf_generic_reloc, /* special_function */
245 "R_C6000_ABS_H16", /* name */
246 FALSE, /* partial_inplace */
247 0, /* src_mask */
248 0x007fff80, /* dst_mask */
249 FALSE), /* pcrel_offset */
250 HOWTO (R_C6000_SBR_U15_B, /* type */
251 0, /* rightshift */
252 2, /* size (0 = byte, 1 = short, 2 = long) */
253 15, /* bitsize */
254 FALSE, /* pc_relative */
255 8, /* bitpos */
256 complain_overflow_unsigned,/* complain_on_overflow */
257 bfd_elf_generic_reloc, /* special_function */
258 "R_C6000_SBR_U15_B", /* name */
259 FALSE, /* partial_inplace */
260 0, /* src_mask */
261 0x007fff00, /* dst_mask */
262 FALSE), /* pcrel_offset */
263 HOWTO (R_C6000_SBR_U15_H, /* type */
264 1, /* rightshift */
265 2, /* size (0 = byte, 1 = short, 2 = long) */
266 15, /* bitsize */
267 FALSE, /* pc_relative */
268 8, /* bitpos */
269 complain_overflow_unsigned,/* complain_on_overflow */
270 bfd_elf_generic_reloc, /* special_function */
271 "R_C6000_SBR_U15_H", /* name */
272 FALSE, /* partial_inplace */
273 0, /* src_mask */
274 0x007fff00, /* dst_mask */
275 FALSE), /* pcrel_offset */
276 HOWTO (R_C6000_SBR_U15_W, /* type */
277 2, /* rightshift */
278 2, /* size (0 = byte, 1 = short, 2 = long) */
279 15, /* bitsize */
280 FALSE, /* pc_relative */
281 8, /* bitpos */
282 complain_overflow_unsigned,/* complain_on_overflow */
283 bfd_elf_generic_reloc, /* special_function */
284 "R_C6000_SBR_U15_W", /* name */
285 FALSE, /* partial_inplace */
286 0, /* src_mask */
287 0x007fff00, /* dst_mask */
288 FALSE), /* pcrel_offset */
289 HOWTO (R_C6000_SBR_S16, /* type */
290 0, /* rightshift */
291 2, /* size (0 = byte, 1 = short, 2 = long) */
292 16, /* bitsize */
293 FALSE, /* pc_relative */
294 7, /* bitpos */
295 complain_overflow_signed,/* complain_on_overflow */
296 bfd_elf_generic_reloc, /* special_function */
297 "R_C6000_SBR_S16", /* name */
298 FALSE, /* partial_inplace */
299 0, /* src_mask */
300 0x007fff80, /* dst_mask */
301 FALSE), /* pcrel_offset */
302 HOWTO (R_C6000_SBR_L16_B, /* type */
303 0, /* rightshift */
304 2, /* size (0 = byte, 1 = short, 2 = long) */
305 16, /* bitsize */
306 FALSE, /* pc_relative */
307 7, /* bitpos */
308 complain_overflow_dont,/* complain_on_overflow */
309 bfd_elf_generic_reloc, /* special_function */
310 "R_C6000_SBR_L16_B", /* name */
311 FALSE, /* partial_inplace */
312 0, /* src_mask */
313 0x007fff80, /* dst_mask */
314 FALSE), /* pcrel_offset */
315 HOWTO (R_C6000_SBR_L16_H, /* type */
316 1, /* rightshift */
317 2, /* size (0 = byte, 1 = short, 2 = long) */
318 16, /* bitsize */
319 FALSE, /* pc_relative */
320 7, /* bitpos */
321 complain_overflow_dont,/* complain_on_overflow */
322 bfd_elf_generic_reloc, /* special_function */
323 "R_C6000_SBR_L16_H", /* name */
324 FALSE, /* partial_inplace */
325 0, /* src_mask */
326 0x007fff80, /* dst_mask */
327 FALSE), /* pcrel_offset */
328 HOWTO (R_C6000_SBR_L16_W, /* type */
329 2, /* rightshift */
330 2, /* size (0 = byte, 1 = short, 2 = long) */
331 16, /* bitsize */
332 FALSE, /* pc_relative */
333 7, /* bitpos */
334 complain_overflow_dont,/* complain_on_overflow */
335 bfd_elf_generic_reloc, /* special_function */
336 "R_C6000_SBR_L16_W", /* name */
337 FALSE, /* partial_inplace */
338 0, /* src_mask */
339 0x007fff80, /* dst_mask */
340 FALSE), /* pcrel_offset */
341 HOWTO (R_C6000_SBR_H16_B, /* type */
342 16, /* rightshift */
343 2, /* size (0 = byte, 1 = short, 2 = long) */
344 16, /* bitsize */
345 FALSE, /* pc_relative */
346 7, /* bitpos */
347 complain_overflow_dont,/* complain_on_overflow */
348 bfd_elf_generic_reloc, /* special_function */
349 "R_C6000_SBR_H16_B", /* name */
350 FALSE, /* partial_inplace */
351 0, /* src_mask */
352 0x007fff80, /* dst_mask */
353 FALSE), /* pcrel_offset */
354 HOWTO (R_C6000_SBR_H16_H, /* type */
355 17, /* rightshift */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
357 16, /* bitsize */
358 FALSE, /* pc_relative */
359 7, /* bitpos */
360 complain_overflow_dont,/* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_C6000_SBR_H16_H", /* name */
363 FALSE, /* partial_inplace */
364 0, /* src_mask */
365 0x007fff80, /* dst_mask */
366 FALSE), /* pcrel_offset */
367 HOWTO (R_C6000_SBR_H16_W, /* type */
368 18, /* rightshift */
369 2, /* size (0 = byte, 1 = short, 2 = long) */
370 16, /* bitsize */
371 FALSE, /* pc_relative */
372 7, /* bitpos */
373 complain_overflow_dont,/* complain_on_overflow */
374 bfd_elf_generic_reloc, /* special_function */
375 "R_C6000_SBR_H16_W", /* name */
376 FALSE, /* partial_inplace */
377 0, /* src_mask */
378 0x007fff80, /* dst_mask */
379 FALSE), /* pcrel_offset */
380 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
381 2, /* rightshift */
382 2, /* size (0 = byte, 1 = short, 2 = long) */
383 15, /* bitsize */
384 FALSE, /* pc_relative */
385 8, /* bitpos */
386 complain_overflow_unsigned,/* complain_on_overflow */
387 bfd_elf_generic_reloc, /* special_function */
388 "R_C6000_SBR_GOT_U15_W",/* name */
389 FALSE, /* partial_inplace */
390 0, /* src_mask */
391 0x007fff00, /* dst_mask */
392 FALSE), /* pcrel_offset */
393 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
394 2, /* rightshift */
395 2, /* size (0 = byte, 1 = short, 2 = long) */
396 16, /* bitsize */
397 FALSE, /* pc_relative */
398 7, /* bitpos */
399 complain_overflow_dont,/* complain_on_overflow */
400 bfd_elf_generic_reloc, /* special_function */
401 "R_C6000_SBR_GOT_L16_W",/* name */
402 FALSE, /* partial_inplace */
403 0, /* src_mask */
404 0x007fff80, /* dst_mask */
405 FALSE), /* pcrel_offset */
406 HOWTO (R_C6000_SBR_GOT_H16_W, /* type */
407 18, /* rightshift */
408 2, /* size (0 = byte, 1 = short, 2 = long) */
409 16, /* bitsize */
410 FALSE, /* pc_relative */
411 7, /* bitpos */
412 complain_overflow_dont,/* complain_on_overflow */
413 bfd_elf_generic_reloc, /* special_function */
414 "R_C6000_SBR_GOT_H16_W",/* name */
415 FALSE, /* partial_inplace */
416 0, /* src_mask */
417 0x007fff80, /* dst_mask */
418 FALSE), /* pcrel_offset */
419 HOWTO (R_C6000_DSBT_INDEX, /* type */
420 0, /* rightshift */
421 2, /* size (0 = byte, 1 = short, 2 = long) */
422 15, /* bitsize */
423 FALSE, /* pc_relative */
424 8, /* bitpos */
425 complain_overflow_unsigned,/* complain_on_overflow */
426 bfd_elf_generic_reloc, /* special_function */
427 "R_C6000_DSBT_INDEX", /* name */
428 FALSE, /* partial_inplace */
429 0, /* src_mask */
430 0x007fff00, /* dst_mask */
431 FALSE), /* pcrel_offset */
432 HOWTO (R_C6000_PREL31, /* type */
433 1, /* rightshift */
434 2, /* size (0 = byte, 1 = short, 2 = long) */
435 31, /* bitsize */
44e87ece 436 TRUE, /* pc_relative */
41820509
JM		 437 0, /* bitpos */
438 complain_overflow_dont,/* complain_on_overflow */
439 bfd_elf_generic_reloc, /* special_function */
440 "R_C6000_PREL31", /* name */
441 FALSE, /* partial_inplace */
442 0, /* src_mask */
443 0x7fffffff, /* dst_mask */
44e87ece 444 TRUE), /* pcrel_offset */
41820509
JM		 445 HOWTO (R_C6000_COPY, /* type */
446 0, /* rightshift */
447 2, /* size (0 = byte, 1 = short, 2 = long) */
448 32, /* bitsize */
449 FALSE, /* pc_relative */
450 0, /* bitpos */
451 complain_overflow_dont,/* complain_on_overflow */
452 bfd_elf_generic_reloc, /* special_function */
453 "R_C6000_COPY", /* name */
454 FALSE, /* partial_inplace */
455 0, /* src_mask */
456 0xffffffff, /* dst_mask */
457 FALSE), /* pcrel_offset */
ac145307
BS		 458 HOWTO (R_C6000_JUMP_SLOT, /* type */
459 0, /* rightshift */
460 2, /* size (0 = byte, 1 = short, 2 = long) */
461 32, /* bitsize */
462 FALSE, /* pc_relative */
463 0, /* bitpos */
464 complain_overflow_dont,/* complain_on_overflow */
465 bfd_elf_generic_reloc, /* special_function */
466 "R_C6000_JUMP_SLOT", /* name */
467 FALSE, /* partial_inplace */
468 0, /* src_mask */
469 0xffffffff, /* dst_mask */
470 FALSE), /* pcrel_offset */
2fbb87f6
PB		 471 HOWTO (R_C6000_EHTYPE, /* type */
472 0, /* rightshift */
473 2, /* size (0 = byte, 1 = short, 2 = long) */
474 32, /* bitsize */
475 FALSE, /* pc_relative */
476 0, /* bitpos */
477 complain_overflow_dont,/* complain_on_overflow */
478 bfd_elf_generic_reloc, /* special_function */
479 "R_C6000_EHTYPE", /* name */
480 FALSE, /* partial_inplace */
481 0, /* src_mask */
482 0xffffffff, /* dst_mask */
483 FALSE), /* pcrel_offset */
41820509
JM		 484 EMPTY_HOWTO (29),
485 EMPTY_HOWTO (30),
486 EMPTY_HOWTO (31),
487 EMPTY_HOWTO (32),
488 EMPTY_HOWTO (33),
489 EMPTY_HOWTO (34),
490 EMPTY_HOWTO (35),
491 EMPTY_HOWTO (36),
492 EMPTY_HOWTO (37),
493 EMPTY_HOWTO (38),
494 EMPTY_HOWTO (39),
495 EMPTY_HOWTO (40),
496 EMPTY_HOWTO (41),
497 EMPTY_HOWTO (42),
498 EMPTY_HOWTO (43),
499 EMPTY_HOWTO (44),
500 EMPTY_HOWTO (45),
501 EMPTY_HOWTO (46),
502 EMPTY_HOWTO (47),
503 EMPTY_HOWTO (48),
504 EMPTY_HOWTO (49),
505 EMPTY_HOWTO (50),
506 EMPTY_HOWTO (51),
507 EMPTY_HOWTO (52),
508 EMPTY_HOWTO (53),
509 EMPTY_HOWTO (54),
510 EMPTY_HOWTO (55),
511 EMPTY_HOWTO (56),
512 EMPTY_HOWTO (57),
513 EMPTY_HOWTO (58),
514 EMPTY_HOWTO (59),
515 EMPTY_HOWTO (60),
516 EMPTY_HOWTO (61),
517 EMPTY_HOWTO (62),
518 EMPTY_HOWTO (63),
519 EMPTY_HOWTO (64),
520 EMPTY_HOWTO (65),
521 EMPTY_HOWTO (66),
522 EMPTY_HOWTO (67),
523 EMPTY_HOWTO (68),
524 EMPTY_HOWTO (69),
525 EMPTY_HOWTO (70),
526 EMPTY_HOWTO (71),
527 EMPTY_HOWTO (72),
528 EMPTY_HOWTO (73),
529 EMPTY_HOWTO (74),
530 EMPTY_HOWTO (75),
531 EMPTY_HOWTO (76),
532 EMPTY_HOWTO (77),
533 EMPTY_HOWTO (78),
534 EMPTY_HOWTO (79),
535 EMPTY_HOWTO (80),
536 EMPTY_HOWTO (81),
537 EMPTY_HOWTO (82),
538 EMPTY_HOWTO (83),
539 EMPTY_HOWTO (84),
540 EMPTY_HOWTO (85),
541 EMPTY_HOWTO (86),
542 EMPTY_HOWTO (87),
543 EMPTY_HOWTO (88),
544 EMPTY_HOWTO (89),
545 EMPTY_HOWTO (90),
546 EMPTY_HOWTO (91),
547 EMPTY_HOWTO (92),
548 EMPTY_HOWTO (93),
549 EMPTY_HOWTO (94),
550 EMPTY_HOWTO (95),
551 EMPTY_HOWTO (96),
552 EMPTY_HOWTO (97),
553 EMPTY_HOWTO (98),
554 EMPTY_HOWTO (99),
555 EMPTY_HOWTO (100),
556 EMPTY_HOWTO (101),
557 EMPTY_HOWTO (102),
558 EMPTY_HOWTO (103),
559 EMPTY_HOWTO (104),
560 EMPTY_HOWTO (105),
561 EMPTY_HOWTO (106),
562 EMPTY_HOWTO (107),
563 EMPTY_HOWTO (108),
564 EMPTY_HOWTO (109),
565 EMPTY_HOWTO (110),
566 EMPTY_HOWTO (111),
567 EMPTY_HOWTO (112),
568 EMPTY_HOWTO (113),
569 EMPTY_HOWTO (114),
570 EMPTY_HOWTO (115),
571 EMPTY_HOWTO (116),
572 EMPTY_HOWTO (117),
573 EMPTY_HOWTO (118),
574 EMPTY_HOWTO (119),
575 EMPTY_HOWTO (120),
576 EMPTY_HOWTO (121),
577 EMPTY_HOWTO (122),
578 EMPTY_HOWTO (123),
579 EMPTY_HOWTO (124),
580 EMPTY_HOWTO (125),
581 EMPTY_HOWTO (126),
582 EMPTY_HOWTO (127),
583 EMPTY_HOWTO (128),
584 EMPTY_HOWTO (129),
585 EMPTY_HOWTO (130),
586 EMPTY_HOWTO (131),
587 EMPTY_HOWTO (132),
588 EMPTY_HOWTO (133),
589 EMPTY_HOWTO (134),
590 EMPTY_HOWTO (135),
591 EMPTY_HOWTO (136),
592 EMPTY_HOWTO (137),
593 EMPTY_HOWTO (138),
594 EMPTY_HOWTO (139),
595 EMPTY_HOWTO (140),
596 EMPTY_HOWTO (141),
597 EMPTY_HOWTO (142),
598 EMPTY_HOWTO (143),
599 EMPTY_HOWTO (144),
600 EMPTY_HOWTO (145),
601 EMPTY_HOWTO (146),
602 EMPTY_HOWTO (147),
603 EMPTY_HOWTO (148),
604 EMPTY_HOWTO (149),
605 EMPTY_HOWTO (150),
606 EMPTY_HOWTO (151),
607 EMPTY_HOWTO (152),
608 EMPTY_HOWTO (153),
609 EMPTY_HOWTO (154),
610 EMPTY_HOWTO (155),
611 EMPTY_HOWTO (156),
612 EMPTY_HOWTO (157),
613 EMPTY_HOWTO (158),
614 EMPTY_HOWTO (159),
615 EMPTY_HOWTO (160),
616 EMPTY_HOWTO (161),
617 EMPTY_HOWTO (162),
618 EMPTY_HOWTO (163),
619 EMPTY_HOWTO (164),
620 EMPTY_HOWTO (165),
621 EMPTY_HOWTO (166),
622 EMPTY_HOWTO (167),
623 EMPTY_HOWTO (168),
624 EMPTY_HOWTO (169),
625 EMPTY_HOWTO (170),
626 EMPTY_HOWTO (171),
627 EMPTY_HOWTO (172),
628 EMPTY_HOWTO (173),
629 EMPTY_HOWTO (174),
630 EMPTY_HOWTO (175),
631 EMPTY_HOWTO (176),
632 EMPTY_HOWTO (177),
633 EMPTY_HOWTO (178),
634 EMPTY_HOWTO (179),
635 EMPTY_HOWTO (180),
636 EMPTY_HOWTO (181),
637 EMPTY_HOWTO (182),
638 EMPTY_HOWTO (183),
639 EMPTY_HOWTO (184),
640 EMPTY_HOWTO (185),
641 EMPTY_HOWTO (186),
642 EMPTY_HOWTO (187),
643 EMPTY_HOWTO (188),
644 EMPTY_HOWTO (189),
645 EMPTY_HOWTO (190),
646 EMPTY_HOWTO (191),
647 EMPTY_HOWTO (192),
648 EMPTY_HOWTO (193),
649 EMPTY_HOWTO (194),
650 EMPTY_HOWTO (195),
651 EMPTY_HOWTO (196),
652 EMPTY_HOWTO (197),
653 EMPTY_HOWTO (198),
654 EMPTY_HOWTO (199),
655 EMPTY_HOWTO (200),
656 EMPTY_HOWTO (201),
657 EMPTY_HOWTO (202),
658 EMPTY_HOWTO (203),
659 EMPTY_HOWTO (204),
660 EMPTY_HOWTO (205),
661 EMPTY_HOWTO (206),
662 EMPTY_HOWTO (207),
663 EMPTY_HOWTO (208),
664 EMPTY_HOWTO (209),
665 EMPTY_HOWTO (210),
666 EMPTY_HOWTO (211),
667 EMPTY_HOWTO (212),
668 EMPTY_HOWTO (213),
669 EMPTY_HOWTO (214),
670 EMPTY_HOWTO (215),
671 EMPTY_HOWTO (216),
672 EMPTY_HOWTO (217),
673 EMPTY_HOWTO (218),
674 EMPTY_HOWTO (219),
675 EMPTY_HOWTO (220),
676 EMPTY_HOWTO (221),
677 EMPTY_HOWTO (222),
678 EMPTY_HOWTO (223),
679 EMPTY_HOWTO (224),
680 EMPTY_HOWTO (225),
681 EMPTY_HOWTO (226),
682 EMPTY_HOWTO (227),
683 EMPTY_HOWTO (228),
684 EMPTY_HOWTO (229),
685 EMPTY_HOWTO (230),
686 EMPTY_HOWTO (231),
687 EMPTY_HOWTO (232),
688 EMPTY_HOWTO (233),
689 EMPTY_HOWTO (234),
690 EMPTY_HOWTO (235),
691 EMPTY_HOWTO (236),
692 EMPTY_HOWTO (237),
693 EMPTY_HOWTO (238),
694 EMPTY_HOWTO (239),
695 EMPTY_HOWTO (240),
696 EMPTY_HOWTO (241),
697 EMPTY_HOWTO (242),
698 EMPTY_HOWTO (243),
699 EMPTY_HOWTO (244),
700 EMPTY_HOWTO (245),
701 EMPTY_HOWTO (246),
702 EMPTY_HOWTO (247),
703 EMPTY_HOWTO (248),
704 EMPTY_HOWTO (249),
705 EMPTY_HOWTO (250),
706 EMPTY_HOWTO (251),
707 EMPTY_HOWTO (252),
708 HOWTO (R_C6000_ALIGN, /* type */
709 0, /* rightshift */
710 0, /* size (0 = byte, 1 = short, 2 = long) */
711 0, /* bitsize */
712 FALSE, /* pc_relative */
713 0, /* bitpos */
714 complain_overflow_dont,/* complain_on_overflow */
715 bfd_elf_generic_reloc, /* special_function */
716 "R_C6000_ALIGN", /* name */
717 FALSE, /* partial_inplace */
718 0, /* src_mask */
719 0, /* dst_mask */
720 FALSE), /* pcrel_offset */
721 HOWTO (R_C6000_FPHEAD, /* type */
722 0, /* rightshift */
723 0, /* size (0 = byte, 1 = short, 2 = long) */
724 0, /* bitsize */
725 FALSE, /* pc_relative */
726 0, /* bitpos */
727 complain_overflow_dont,/* complain_on_overflow */
728 bfd_elf_generic_reloc, /* special_function */
729 "R_C6000_FPHEAD", /* name */
730 FALSE, /* partial_inplace */
731 0, /* src_mask */
732 0, /* dst_mask */
733 FALSE), /* pcrel_offset */
734 HOWTO (R_C6000_NOCMP, /* type */
735 0, /* rightshift */
736 0, /* size (0 = byte, 1 = short, 2 = long) */
737 0, /* bitsize */
738 FALSE, /* pc_relative */
739 0, /* bitpos */
740 complain_overflow_dont,/* complain_on_overflow */
741 bfd_elf_generic_reloc, /* special_function */
742 "R_C6000_NOCMP", /* name */
743 FALSE, /* partial_inplace */
744 0, /* src_mask */
745 0, /* dst_mask */
746 FALSE) /* pcrel_offset */
747};
748
749static reloc_howto_type elf32_tic6x_howto_table_rel[] =
750{
751 HOWTO (R_C6000_NONE, /* type */
752 0, /* rightshift */
753 0, /* size (0 = byte, 1 = short, 2 = long) */
754 0, /* bitsize */
755 FALSE, /* pc_relative */
756 0, /* bitpos */
757 complain_overflow_dont,/* complain_on_overflow */
758 bfd_elf_generic_reloc, /* special_function */
759 "R_C6000_NONE", /* name */
760 TRUE, /* partial_inplace */
40b36596
JM		 761 0, /* src_mask */
762 0, /* dst_mask */
763 FALSE), /* pcrel_offset */
764 HOWTO (R_C6000_ABS32, /* type */
765 0, /* rightshift */
766 2, /* size (0 = byte, 1 = short, 2 = long) */
767 32, /* bitsize */
768 FALSE, /* pc_relative */
769 0, /* bitpos */
770 complain_overflow_dont,/* complain_on_overflow */
771 bfd_elf_generic_reloc, /* special_function */
772 "R_C6000_ABS32", /* name */
41820509
JM		 773 TRUE, /* partial_inplace */
774 0xffffffff, /* src_mask */
40b36596
JM		 775 0xffffffff, /* dst_mask */
776 FALSE), /* pcrel_offset */
777 HOWTO (R_C6000_ABS16, /* type */
778 0, /* rightshift */
779 1, /* size (0 = byte, 1 = short, 2 = long) */
780 16, /* bitsize */
781 FALSE, /* pc_relative */
782 0, /* bitpos */
783 complain_overflow_bitfield,/* complain_on_overflow */
784 bfd_elf_generic_reloc, /* special_function */
785 "R_C6000_ABS16", /* name */
41820509
JM		 786 TRUE, /* partial_inplace */
787 0x0000ffff, /* src_mask */
40b36596
JM		 788 0x0000ffff, /* dst_mask */
789 FALSE), /* pcrel_offset */
790 HOWTO (R_C6000_ABS8, /* type */
791 0, /* rightshift */
792 0, /* size (0 = byte, 1 = short, 2 = long) */
793 8, /* bitsize */
794 FALSE, /* pc_relative */
795 0, /* bitpos */
796 complain_overflow_bitfield,/* complain_on_overflow */
797 bfd_elf_generic_reloc, /* special_function */
798 "R_C6000_ABS8", /* name */
41820509
JM		 799 TRUE, /* partial_inplace */
800 0x000000ff, /* src_mask */
40b36596
JM		 801 0x000000ff, /* dst_mask */
802 FALSE), /* pcrel_offset */
803 HOWTO (R_C6000_PCR_S21, /* type */
804 2, /* rightshift */
805 2, /* size (0 = byte, 1 = short, 2 = long) */
806 21, /* bitsize */
807 TRUE, /* pc_relative */
808 7, /* bitpos */
809 complain_overflow_signed,/* complain_on_overflow */
810 bfd_elf_generic_reloc, /* special_function */
811 "R_C6000_PCR_S21", /* name */
41820509
JM		 812 TRUE, /* partial_inplace */
813 0x0fffff80, /* src_mask */
40b36596
JM		 814 0x0fffff80, /* dst_mask */
815 TRUE), /* pcrel_offset */
816 HOWTO (R_C6000_PCR_S12, /* type */
817 2, /* rightshift */
818 2, /* size (0 = byte, 1 = short, 2 = long) */
819 12, /* bitsize */
820 TRUE, /* pc_relative */
821 16, /* bitpos */
822 complain_overflow_signed,/* complain_on_overflow */
823 bfd_elf_generic_reloc, /* special_function */
824 "R_C6000_PCR_S12", /* name */
41820509
JM		 825 TRUE, /* partial_inplace */
826 0x0fff0000, /* src_mask */
40b36596
JM		 827 0x0fff0000, /* dst_mask */
828 TRUE), /* pcrel_offset */
829 HOWTO (R_C6000_PCR_S10, /* type */
830 2, /* rightshift */
831 2, /* size (0 = byte, 1 = short, 2 = long) */
832 10, /* bitsize */
833 TRUE, /* pc_relative */
834 13, /* bitpos */
835 complain_overflow_signed,/* complain_on_overflow */
836 bfd_elf_generic_reloc, /* special_function */
837 "R_C6000_PCR_S10", /* name */
41820509
JM		 838 TRUE, /* partial_inplace */
839 0x007fe000, /* src_mask */
40b36596
JM		 840 0x007fe000, /* dst_mask */
841 TRUE), /* pcrel_offset */
842 HOWTO (R_C6000_PCR_S7, /* type */
843 2, /* rightshift */
844 2, /* size (0 = byte, 1 = short, 2 = long) */
845 7, /* bitsize */
846 TRUE, /* pc_relative */
847 16, /* bitpos */
848 complain_overflow_signed,/* complain_on_overflow */
849 bfd_elf_generic_reloc, /* special_function */
850 "R_C6000_PCR_S7", /* name */
41820509
JM		 851 TRUE, /* partial_inplace */
852 0x007f0000, /* src_mask */
40b36596
JM		 853 0x007f0000, /* dst_mask */
854 TRUE), /* pcrel_offset */
855 HOWTO (R_C6000_ABS_S16, /* type */
856 0, /* rightshift */
857 2, /* size (0 = byte, 1 = short, 2 = long) */
858 16, /* bitsize */
859 FALSE, /* pc_relative */
860 7, /* bitpos */
861 complain_overflow_signed,/* complain_on_overflow */
862 bfd_elf_generic_reloc, /* special_function */
863 "R_C6000_ABS_S16", /* name */
41820509
JM		 864 TRUE, /* partial_inplace */
865 0x007fff80, /* src_mask */
40b36596
JM		 866 0x007fff80, /* dst_mask */
867 FALSE), /* pcrel_offset */
868 HOWTO (R_C6000_ABS_L16, /* type */
869 0, /* rightshift */
870 2, /* size (0 = byte, 1 = short, 2 = long) */
871 16, /* bitsize */
872 FALSE, /* pc_relative */
873 7, /* bitpos */
874 complain_overflow_dont,/* complain_on_overflow */
875 bfd_elf_generic_reloc, /* special_function */
876 "R_C6000_ABS_L16", /* name */
41820509
JM		 877 TRUE, /* partial_inplace */
878 0x007fff80, /* src_mask */
40b36596
JM		 879 0x007fff80, /* dst_mask */
880 FALSE), /* pcrel_offset */
41820509 881 EMPTY_HOWTO (R_C6000_ABS_H16),
40b36596
JM		 882 HOWTO (R_C6000_SBR_U15_B, /* type */
883 0, /* rightshift */
884 2, /* size (0 = byte, 1 = short, 2 = long) */
885 15, /* bitsize */
886 FALSE, /* pc_relative */
887 8, /* bitpos */
888 complain_overflow_unsigned,/* complain_on_overflow */
889 bfd_elf_generic_reloc, /* special_function */
890 "R_C6000_SBR_U15_B", /* name */
41820509
JM		 891 TRUE, /* partial_inplace */
892 0x007fff00, /* src_mask */
40b36596
JM		 893 0x007fff00, /* dst_mask */
894 FALSE), /* pcrel_offset */
895 HOWTO (R_C6000_SBR_U15_H, /* type */
896 1, /* rightshift */
897 2, /* size (0 = byte, 1 = short, 2 = long) */
898 15, /* bitsize */
899 FALSE, /* pc_relative */
900 8, /* bitpos */
901 complain_overflow_unsigned,/* complain_on_overflow */
902 bfd_elf_generic_reloc, /* special_function */
903 "R_C6000_SBR_U15_H", /* name */
41820509
JM		 904 TRUE, /* partial_inplace */
905 0x007fff00, /* src_mask */
40b36596
JM		 906 0x007fff00, /* dst_mask */
907 FALSE), /* pcrel_offset */
908 HOWTO (R_C6000_SBR_U15_W, /* type */
909 2, /* rightshift */
910 2, /* size (0 = byte, 1 = short, 2 = long) */
911 15, /* bitsize */
912 FALSE, /* pc_relative */
913 8, /* bitpos */
914 complain_overflow_unsigned,/* complain_on_overflow */
915 bfd_elf_generic_reloc, /* special_function */
916 "R_C6000_SBR_U15_W", /* name */
41820509
JM		 917 TRUE, /* partial_inplace */
918 0x007fff00, /* src_mask */
40b36596
JM		 919 0x007fff00, /* dst_mask */
920 FALSE), /* pcrel_offset */
921 HOWTO (R_C6000_SBR_S16, /* type */
922 0, /* rightshift */
923 2, /* size (0 = byte, 1 = short, 2 = long) */
924 16, /* bitsize */
925 FALSE, /* pc_relative */
926 7, /* bitpos */
927 complain_overflow_signed,/* complain_on_overflow */
928 bfd_elf_generic_reloc, /* special_function */
929 "R_C6000_SBR_S16", /* name */
41820509
JM		 930 TRUE, /* partial_inplace */
931 0x007fff80, /* src_mask */
40b36596
JM		 932 0x007fff80, /* dst_mask */
933 FALSE), /* pcrel_offset */
934 HOWTO (R_C6000_SBR_L16_B, /* type */
935 0, /* rightshift */
936 2, /* size (0 = byte, 1 = short, 2 = long) */
937 16, /* bitsize */
938 FALSE, /* pc_relative */
939 7, /* bitpos */
940 complain_overflow_dont,/* complain_on_overflow */
941 bfd_elf_generic_reloc, /* special_function */
942 "R_C6000_SBR_L16_B", /* name */
41820509
JM		 943 TRUE, /* partial_inplace */
944 0x007fff80, /* src_mask */
40b36596
JM		 945 0x007fff80, /* dst_mask */
946 FALSE), /* pcrel_offset */
947 HOWTO (R_C6000_SBR_L16_H, /* type */
948 1, /* rightshift */
949 2, /* size (0 = byte, 1 = short, 2 = long) */
950 16, /* bitsize */
951 FALSE, /* pc_relative */
952 7, /* bitpos */
953 complain_overflow_dont,/* complain_on_overflow */
954 bfd_elf_generic_reloc, /* special_function */
955 "R_C6000_SBR_L16_H", /* name */
41820509
JM		 956 TRUE, /* partial_inplace */
957 0x007fff80, /* src_mask */
40b36596
JM		 958 0x007fff80, /* dst_mask */
959 FALSE), /* pcrel_offset */
960 HOWTO (R_C6000_SBR_L16_W, /* type */
961 2, /* rightshift */
962 2, /* size (0 = byte, 1 = short, 2 = long) */
963 16, /* bitsize */
964 FALSE, /* pc_relative */
965 7, /* bitpos */
966 complain_overflow_dont,/* complain_on_overflow */
967 bfd_elf_generic_reloc, /* special_function */
968 "R_C6000_SBR_L16_W", /* name */
41820509
JM		 969 TRUE, /* partial_inplace */
970 0x007fff80, /* src_mask */
40b36596
JM		 971 0x007fff80, /* dst_mask */
972 FALSE), /* pcrel_offset */
41820509
JM		 973 EMPTY_HOWTO (R_C6000_SBR_H16_B),
974 EMPTY_HOWTO (R_C6000_SBR_H16_H),
975 EMPTY_HOWTO (R_C6000_SBR_H16_W),
40b36596
JM		 976 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
977 2, /* rightshift */
978 2, /* size (0 = byte, 1 = short, 2 = long) */
979 15, /* bitsize */
980 FALSE, /* pc_relative */
981 8, /* bitpos */
982 complain_overflow_unsigned,/* complain_on_overflow */
983 bfd_elf_generic_reloc, /* special_function */
984 "R_C6000_SBR_GOT_U15_W",/* name */
41820509
JM		 985 TRUE, /* partial_inplace */
986 0x007fff00, /* src_mask */
40b36596
JM		 987 0x007fff00, /* dst_mask */
988 FALSE), /* pcrel_offset */
989 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
990 2, /* rightshift */
991 2, /* size (0 = byte, 1 = short, 2 = long) */
992 16, /* bitsize */
993 FALSE, /* pc_relative */
994 7, /* bitpos */
995 complain_overflow_dont,/* complain_on_overflow */
996 bfd_elf_generic_reloc, /* special_function */
997 "R_C6000_SBR_GOT_L16_W",/* name */
41820509
JM		 998 TRUE, /* partial_inplace */
999 0x007fff80, /* src_mask */
40b36596
JM		 1000 0x007fff80, /* dst_mask */
1001 FALSE), /* pcrel_offset */
41820509 1002 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W),
40b36596
JM		 1003 HOWTO (R_C6000_DSBT_INDEX, /* type */
1004 0, /* rightshift */
1005 2, /* size (0 = byte, 1 = short, 2 = long) */
1006 15, /* bitsize */
1007 FALSE, /* pc_relative */
1008 8, /* bitpos */
1009 complain_overflow_unsigned,/* complain_on_overflow */
1010 bfd_elf_generic_reloc, /* special_function */
1011 "R_C6000_DSBT_INDEX", /* name */
41820509 1012 TRUE, /* partial_inplace */
40b36596
JM		 1013 0, /* src_mask */
1014 0x007fff00, /* dst_mask */
1015 FALSE), /* pcrel_offset */
1016 HOWTO (R_C6000_PREL31, /* type */
1017 1, /* rightshift */
1018 2, /* size (0 = byte, 1 = short, 2 = long) */
1019 31, /* bitsize */
44e87ece 1020 TRUE, /* pc_relative */
40b36596
JM		 1021 0, /* bitpos */
1022 complain_overflow_dont,/* complain_on_overflow */
1023 bfd_elf_generic_reloc, /* special_function */
1024 "R_C6000_PREL31", /* name */
41820509 1025 TRUE, /* partial_inplace */
40b36596
JM		 1026 0, /* src_mask */
1027 0x7fffffff, /* dst_mask */
44e87ece 1028 TRUE), /* pcrel_offset */
40b36596
JM		 1029 HOWTO (R_C6000_COPY, /* type */
1030 0, /* rightshift */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1032 32, /* bitsize */
1033 FALSE, /* pc_relative */
1034 0, /* bitpos */
1035 complain_overflow_dont,/* complain_on_overflow */
1036 bfd_elf_generic_reloc, /* special_function */
1037 "R_C6000_COPY", /* name */
41820509 1038 TRUE, /* partial_inplace */
40b36596
JM		 1039 0, /* src_mask */
1040 0xffffffff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
ac145307
BS		 1042 HOWTO (R_C6000_JUMP_SLOT, /* type */
1043 0, /* rightshift */
1044 2, /* size (0 = byte, 1 = short, 2 = long) */
1045 32, /* bitsize */
1046 FALSE, /* pc_relative */
1047 0, /* bitpos */
1048 complain_overflow_dont,/* complain_on_overflow */
1049 bfd_elf_generic_reloc, /* special_function */
1050 "R_C6000_JUMP_SLOT", /* name */
1051 FALSE, /* partial_inplace */
1052 0, /* src_mask */
1053 0xffffffff, /* dst_mask */
1054 FALSE), /* pcrel_offset */
2fbb87f6
PB		 1055 HOWTO (R_C6000_EHTYPE, /* type */
1056 0, /* rightshift */
1057 2, /* size (0 = byte, 1 = short, 2 = long) */
1058 32, /* bitsize */
1059 FALSE, /* pc_relative */
1060 0, /* bitpos */
1061 complain_overflow_dont,/* complain_on_overflow */
1062 bfd_elf_generic_reloc, /* special_function */
1063 "R_C6000_EHTYPE", /* name */
1064 FALSE, /* partial_inplace */
1065 0, /* src_mask */
1066 0xffffffff, /* dst_mask */
1067 FALSE), /* pcrel_offset */
40b36596
JM		 1068 EMPTY_HOWTO (29),
1069 EMPTY_HOWTO (30),
1070 EMPTY_HOWTO (31),
1071 EMPTY_HOWTO (32),
1072 EMPTY_HOWTO (33),
1073 EMPTY_HOWTO (34),
1074 EMPTY_HOWTO (35),
1075 EMPTY_HOWTO (36),
1076 EMPTY_HOWTO (37),
1077 EMPTY_HOWTO (38),
1078 EMPTY_HOWTO (39),
1079 EMPTY_HOWTO (40),
1080 EMPTY_HOWTO (41),
1081 EMPTY_HOWTO (42),
1082 EMPTY_HOWTO (43),
1083 EMPTY_HOWTO (44),
1084 EMPTY_HOWTO (45),
1085 EMPTY_HOWTO (46),
1086 EMPTY_HOWTO (47),
1087 EMPTY_HOWTO (48),
1088 EMPTY_HOWTO (49),
1089 EMPTY_HOWTO (50),
1090 EMPTY_HOWTO (51),
1091 EMPTY_HOWTO (52),
1092 EMPTY_HOWTO (53),
1093 EMPTY_HOWTO (54),
1094 EMPTY_HOWTO (55),
1095 EMPTY_HOWTO (56),
1096 EMPTY_HOWTO (57),
1097 EMPTY_HOWTO (58),
1098 EMPTY_HOWTO (59),
1099 EMPTY_HOWTO (60),
1100 EMPTY_HOWTO (61),
1101 EMPTY_HOWTO (62),
1102 EMPTY_HOWTO (63),
1103 EMPTY_HOWTO (64),
1104 EMPTY_HOWTO (65),
1105 EMPTY_HOWTO (66),
1106 EMPTY_HOWTO (67),
1107 EMPTY_HOWTO (68),
1108 EMPTY_HOWTO (69),
1109 EMPTY_HOWTO (70),
1110 EMPTY_HOWTO (71),
1111 EMPTY_HOWTO (72),
1112 EMPTY_HOWTO (73),
1113 EMPTY_HOWTO (74),
1114 EMPTY_HOWTO (75),
1115 EMPTY_HOWTO (76),
1116 EMPTY_HOWTO (77),
1117 EMPTY_HOWTO (78),
1118 EMPTY_HOWTO (79),
1119 EMPTY_HOWTO (80),
1120 EMPTY_HOWTO (81),
1121 EMPTY_HOWTO (82),
1122 EMPTY_HOWTO (83),
1123 EMPTY_HOWTO (84),
1124 EMPTY_HOWTO (85),
1125 EMPTY_HOWTO (86),
1126 EMPTY_HOWTO (87),
1127 EMPTY_HOWTO (88),
1128 EMPTY_HOWTO (89),
1129 EMPTY_HOWTO (90),
1130 EMPTY_HOWTO (91),
1131 EMPTY_HOWTO (92),
1132 EMPTY_HOWTO (93),
1133 EMPTY_HOWTO (94),
1134 EMPTY_HOWTO (95),
1135 EMPTY_HOWTO (96),
1136 EMPTY_HOWTO (97),
1137 EMPTY_HOWTO (98),
1138 EMPTY_HOWTO (99),
1139 EMPTY_HOWTO (100),
1140 EMPTY_HOWTO (101),
1141 EMPTY_HOWTO (102),
1142 EMPTY_HOWTO (103),
1143 EMPTY_HOWTO (104),
1144 EMPTY_HOWTO (105),
1145 EMPTY_HOWTO (106),
1146 EMPTY_HOWTO (107),
1147 EMPTY_HOWTO (108),
1148 EMPTY_HOWTO (109),
1149 EMPTY_HOWTO (110),
1150 EMPTY_HOWTO (111),
1151 EMPTY_HOWTO (112),
1152 EMPTY_HOWTO (113),
1153 EMPTY_HOWTO (114),
1154 EMPTY_HOWTO (115),
1155 EMPTY_HOWTO (116),
1156 EMPTY_HOWTO (117),
1157 EMPTY_HOWTO (118),
1158 EMPTY_HOWTO (119),
1159 EMPTY_HOWTO (120),
1160 EMPTY_HOWTO (121),
1161 EMPTY_HOWTO (122),
1162 EMPTY_HOWTO (123),
1163 EMPTY_HOWTO (124),
1164 EMPTY_HOWTO (125),
1165 EMPTY_HOWTO (126),
1166 EMPTY_HOWTO (127),
1167 EMPTY_HOWTO (128),
1168 EMPTY_HOWTO (129),
1169 EMPTY_HOWTO (130),
1170 EMPTY_HOWTO (131),
1171 EMPTY_HOWTO (132),
1172 EMPTY_HOWTO (133),
1173 EMPTY_HOWTO (134),
1174 EMPTY_HOWTO (135),
1175 EMPTY_HOWTO (136),
1176 EMPTY_HOWTO (137),
1177 EMPTY_HOWTO (138),
1178 EMPTY_HOWTO (139),
1179 EMPTY_HOWTO (140),
1180 EMPTY_HOWTO (141),
1181 EMPTY_HOWTO (142),
1182 EMPTY_HOWTO (143),
1183 EMPTY_HOWTO (144),
1184 EMPTY_HOWTO (145),
1185 EMPTY_HOWTO (146),
1186 EMPTY_HOWTO (147),
1187 EMPTY_HOWTO (148),
1188 EMPTY_HOWTO (149),
1189 EMPTY_HOWTO (150),
1190 EMPTY_HOWTO (151),
1191 EMPTY_HOWTO (152),
1192 EMPTY_HOWTO (153),
1193 EMPTY_HOWTO (154),
1194 EMPTY_HOWTO (155),
1195 EMPTY_HOWTO (156),
1196 EMPTY_HOWTO (157),
1197 EMPTY_HOWTO (158),
1198 EMPTY_HOWTO (159),
1199 EMPTY_HOWTO (160),
1200 EMPTY_HOWTO (161),
1201 EMPTY_HOWTO (162),
1202 EMPTY_HOWTO (163),
1203 EMPTY_HOWTO (164),
1204 EMPTY_HOWTO (165),
1205 EMPTY_HOWTO (166),
1206 EMPTY_HOWTO (167),
1207 EMPTY_HOWTO (168),
1208 EMPTY_HOWTO (169),
1209 EMPTY_HOWTO (170),
1210 EMPTY_HOWTO (171),
1211 EMPTY_HOWTO (172),
1212 EMPTY_HOWTO (173),
1213 EMPTY_HOWTO (174),
1214 EMPTY_HOWTO (175),
1215 EMPTY_HOWTO (176),
1216 EMPTY_HOWTO (177),
1217 EMPTY_HOWTO (178),
1218 EMPTY_HOWTO (179),
1219 EMPTY_HOWTO (180),
1220 EMPTY_HOWTO (181),
1221 EMPTY_HOWTO (182),
1222 EMPTY_HOWTO (183),
1223 EMPTY_HOWTO (184),
1224 EMPTY_HOWTO (185),
1225 EMPTY_HOWTO (186),
1226 EMPTY_HOWTO (187),
1227 EMPTY_HOWTO (188),
1228 EMPTY_HOWTO (189),
1229 EMPTY_HOWTO (190),
1230 EMPTY_HOWTO (191),
1231 EMPTY_HOWTO (192),
1232 EMPTY_HOWTO (193),
1233 EMPTY_HOWTO (194),
1234 EMPTY_HOWTO (195),
1235 EMPTY_HOWTO (196),
1236 EMPTY_HOWTO (197),
1237 EMPTY_HOWTO (198),
1238 EMPTY_HOWTO (199),
1239 EMPTY_HOWTO (200),
1240 EMPTY_HOWTO (201),
1241 EMPTY_HOWTO (202),
1242 EMPTY_HOWTO (203),
1243 EMPTY_HOWTO (204),
1244 EMPTY_HOWTO (205),
1245 EMPTY_HOWTO (206),
1246 EMPTY_HOWTO (207),
1247 EMPTY_HOWTO (208),
1248 EMPTY_HOWTO (209),
1249 EMPTY_HOWTO (210),
1250 EMPTY_HOWTO (211),
1251 EMPTY_HOWTO (212),
1252 EMPTY_HOWTO (213),
1253 EMPTY_HOWTO (214),
1254 EMPTY_HOWTO (215),
1255 EMPTY_HOWTO (216),
1256 EMPTY_HOWTO (217),
1257 EMPTY_HOWTO (218),
1258 EMPTY_HOWTO (219),
1259 EMPTY_HOWTO (220),
1260 EMPTY_HOWTO (221),
1261 EMPTY_HOWTO (222),
1262 EMPTY_HOWTO (223),
1263 EMPTY_HOWTO (224),
1264 EMPTY_HOWTO (225),
1265 EMPTY_HOWTO (226),
1266 EMPTY_HOWTO (227),
1267 EMPTY_HOWTO (228),
1268 EMPTY_HOWTO (229),
1269 EMPTY_HOWTO (230),
1270 EMPTY_HOWTO (231),
1271 EMPTY_HOWTO (232),
1272 EMPTY_HOWTO (233),
1273 EMPTY_HOWTO (234),
1274 EMPTY_HOWTO (235),
1275 EMPTY_HOWTO (236),
1276 EMPTY_HOWTO (237),
1277 EMPTY_HOWTO (238),
1278 EMPTY_HOWTO (239),
1279 EMPTY_HOWTO (240),
1280 EMPTY_HOWTO (241),
1281 EMPTY_HOWTO (242),
1282 EMPTY_HOWTO (243),
1283 EMPTY_HOWTO (244),
1284 EMPTY_HOWTO (245),
1285 EMPTY_HOWTO (246),
1286 EMPTY_HOWTO (247),
1287 EMPTY_HOWTO (248),
1288 EMPTY_HOWTO (249),
1289 EMPTY_HOWTO (250),
1290 EMPTY_HOWTO (251),
1291 EMPTY_HOWTO (252),
1292 HOWTO (R_C6000_ALIGN, /* type */
1293 0, /* rightshift */
1294 0, /* size (0 = byte, 1 = short, 2 = long) */
1295 0, /* bitsize */
1296 FALSE, /* pc_relative */
1297 0, /* bitpos */
1298 complain_overflow_dont,/* complain_on_overflow */
1299 bfd_elf_generic_reloc, /* special_function */
1300 "R_C6000_ALIGN", /* name */
41820509 1301 TRUE, /* partial_inplace */
40b36596
JM		 1302 0, /* src_mask */
1303 0, /* dst_mask */
1304 FALSE), /* pcrel_offset */
1305 HOWTO (R_C6000_FPHEAD, /* type */
1306 0, /* rightshift */
1307 0, /* size (0 = byte, 1 = short, 2 = long) */
1308 0, /* bitsize */
1309 FALSE, /* pc_relative */
1310 0, /* bitpos */
1311 complain_overflow_dont,/* complain_on_overflow */
1312 bfd_elf_generic_reloc, /* special_function */
1313 "R_C6000_FPHEAD", /* name */
41820509 1314 TRUE, /* partial_inplace */
40b36596
JM		 1315 0, /* src_mask */
1316 0, /* dst_mask */
1317 FALSE), /* pcrel_offset */
1318 HOWTO (R_C6000_NOCMP, /* type */
1319 0, /* rightshift */
1320 0, /* size (0 = byte, 1 = short, 2 = long) */
1321 0, /* bitsize */
1322 FALSE, /* pc_relative */
1323 0, /* bitpos */
1324 complain_overflow_dont,/* complain_on_overflow */
1325 bfd_elf_generic_reloc, /* special_function */
1326 "R_C6000_NOCMP", /* name */
41820509 1327 TRUE, /* partial_inplace */
40b36596
JM		 1328 0, /* src_mask */
1329 0, /* dst_mask */
1330 FALSE) /* pcrel_offset */
1331};
1332
1333/* Map BFD relocations to ELF relocations. */
1334
1335typedef struct
1336{
1337 bfd_reloc_code_real_type bfd_reloc_val;
1338 enum elf_tic6x_reloc_type elf_reloc_val;
1339} tic6x_reloc_map;
1340
1341static const tic6x_reloc_map elf32_tic6x_reloc_map[] =
1342 {
1343 { BFD_RELOC_NONE, R_C6000_NONE },
1344 { BFD_RELOC_32, R_C6000_ABS32 },
1345 { BFD_RELOC_16, R_C6000_ABS16 },
1346 { BFD_RELOC_8, R_C6000_ABS8 },
1347 { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 },
1348 { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 },
1349 { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 },
1350 { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 },
1351 { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 },
1352 { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 },
1353 { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 },
1354 { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B },
1355 { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H },
1356 { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W },
1357 { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 },
1358 { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B },
1359 { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H },
1360 { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W },
1361 { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B },
1362 { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H },
1363 { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W },
1364 { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W },
1365 { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W },
1366 { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W },
1367 { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX },
1368 { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 },
1369 { BFD_RELOC_C6000_COPY, R_C6000_COPY },
ac145307
BS		 1370 { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT },
1371 { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE },
1372 { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 },
1373 { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 },
40b36596
JM		 1374 { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN },
1375 { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD },
1376 { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP }
1377 };
1378
1379static reloc_howto_type *
41820509 1380elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
40b36596
JM		 1381{
1382 unsigned int i;
1383
1384 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++)
1385 if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code)
41820509
JM		 1386 {
1387 enum elf_tic6x_reloc_type elf_reloc_val;
1388 reloc_howto_type *howto;
1389
1390 elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val;
1391 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1392 howto = &elf32_tic6x_howto_table[elf_reloc_val];
1393 else
1394 howto = &elf32_tic6x_howto_table_rel[elf_reloc_val];
1395
1396 /* Some relocations are RELA-only; do not return them for
1397 REL. */
1398 if (howto->name == NULL)
1399 howto = NULL;
1400
1401 return howto;
1402 }
40b36596
JM		 1403
1404 return NULL;
1405}
1406
1407static reloc_howto_type *
41820509 1408elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name)
40b36596 1409{
41820509
JM		 1410 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1411 {
1412 unsigned int i;
1413
1414 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++)
1415 if (elf32_tic6x_howto_table[i].name != NULL
1416 && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0)
1417 return &elf32_tic6x_howto_table[i];
1418 }
1419 else
1420 {
1421 unsigned int i;
40b36596 1422
41820509
JM		 1423 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++)
1424 if (elf32_tic6x_howto_table_rel[i].name != NULL
1425 && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0)
1426 return &elf32_tic6x_howto_table_rel[i];
1427 }
40b36596
JM		 1428
1429 return NULL;
1430}
1431
1432static void
1433elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1434 Elf_Internal_Rela *elf_reloc)
1435{
1436 unsigned int r_type;
1437
1438 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1439 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table))
1440 bfd_reloc->howto = NULL;
1441 else
1442 bfd_reloc->howto = &elf32_tic6x_howto_table[r_type];
1443}
1444
41820509
JM		 1445static void
1446elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1447 Elf_Internal_Rela *elf_reloc)
1448{
1449 unsigned int r_type;
1450
1451 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1452 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel))
1453 bfd_reloc->howto = NULL;
1454 else
1455 bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type];
1456}
1457
1458void
1459elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p)
1460{
1461 elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p;
1462}
1463
ac145307
BS		 1464/* Create an entry in a C6X ELF linker hash table. */
1465
1466static struct bfd_hash_entry *
1467elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry,
1468 struct bfd_hash_table *table,
1469 const char *string)
1470{
1471 /* Allocate the structure if it has not already been allocated by a
1472 subclass. */
1473 if (entry == NULL)
1474 {
1475 entry = bfd_hash_allocate (table,
1476 sizeof (struct elf32_tic6x_link_hash_entry));
1477 if (entry == NULL)
1478 return entry;
1479 }
1480
1481 /* Call the allocation method of the superclass. */
1482 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1483 if (entry != NULL)
1484 {
1485 struct elf32_tic6x_link_hash_entry *eh;
1486
1487 eh = (struct elf32_tic6x_link_hash_entry *) entry;
1488 eh->dyn_relocs = NULL;
1489 }
1490
1491 return entry;
1492}
1493
1494/* Create a C6X ELF linker hash table. */
1495
1496static struct bfd_link_hash_table *
1497elf32_tic6x_link_hash_table_create (bfd *abfd)
1498{
1499 struct elf32_tic6x_link_hash_table *ret;
1500 bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table);
1501
1502 ret = bfd_malloc (amt);
1503 if (ret == NULL)
1504 return NULL;
1505
1506 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1507 elf32_tic6x_link_hash_newfunc,
1508 sizeof (struct elf32_tic6x_link_hash_entry),
1509 TIC6X_ELF_DATA))
1510 {
1511 free (ret);
1512 return NULL;
1513 }
1514
1515 ret->sym_cache.abfd = NULL;
1516 ret->obfd = abfd;
1517 ret->elf.is_relocatable_executable = 1;
1518
1519 return &ret->elf.root;
1520}
1521
c6a8f6e0
BS		 1522static bfd_boolean
1523elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info)
1524{
1525 if (info->shared)
1526 {
1527 obj_attribute *out_attr;
1528 out_attr = elf_known_obj_attributes_proc (abfd);
1529 if (out_attr[Tag_ABI_PIC].i == 0)
1530 {
1531 _bfd_error_handler (_("warning: generating a shared library "
1532 "containing non-PIC code"));
1533 }
1534 if (out_attr[Tag_ABI_PID].i == 0)
1535 {
1536 _bfd_error_handler (_("warning: generating a shared library "
1537 "containing non-PID code"));
1538 }
1539 }
1540 /* Invoke the regular ELF backend linker to do all the work. */
1541 if (!bfd_elf_final_link (abfd, info))
1542 return FALSE;
1543
1544 return TRUE;
1545}
1546
ac145307
BS		 1547/* Destroy a C6X ELF linker hash table. */
1548
1549static void
1550elf32_tic6x_link_hash_table_free (struct bfd_link_hash_table *hash)
1551{
1552 _bfd_generic_link_hash_table_free (hash);
1553}
1554
1555/* Called to pass PARAMS to the backend. We store them in the hash table
1556 associated with INFO. */
1557
1558void
1559elf32_tic6x_setup (struct bfd_link_info *info,
1560 struct elf32_tic6x_params *params)
1561{
1562 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info);
1563 htab->params = *params;
1564}
1565
1566/* Determine if we're dealing with a DSBT object. */
1567
1568static bfd_boolean
1569elf32_tic6x_using_dsbt (bfd *abfd)
1570{
1571 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC,
1572 Tag_ABI_DSBT);
1573}
1574
1575/* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
1576 sections in DYNOBJ, and set up shortcuts to them in our hash
1577 table. */
1578
1579static bfd_boolean
1580elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
1581{
1582 struct elf32_tic6x_link_hash_table *htab;
1583 flagword flags;
1584
1585 htab = elf32_tic6x_hash_table (info);
1586 if (htab == NULL)
1587 return FALSE;
1588
1589 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1590 return FALSE;
1591
1592 /* Create .dsbt */
1593 flags = (SEC_ALLOC | SEC_LOAD
1594 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1595 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt",
1596 flags);
1597 if (htab->dsbt == NULL
1598 || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2)
1599 || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5))
1600 return FALSE;
1601
1602 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
1603 if (!info->shared)
1604 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
1605
1606 if (!htab->sdynbss
1607 || (!info->shared && !htab->srelbss))
1608 abort ();
1609
1610 return TRUE;
1611}
1612
41820509
JM		 1613static bfd_boolean
1614elf32_tic6x_mkobject (bfd *abfd)
1615{
1616 bfd_boolean ret;
1617
1618 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
1619 TIC6X_ELF_DATA);
1620 if (ret)
1621 elf32_tic6x_set_use_rela_p (abfd, TRUE);
1622 return ret;
1623}
1624
ac145307
BS		 1625/* Install relocation RELA into section SRELA, incrementing its
1626 reloc_count. */
1627
1628static void
1629elf32_tic6x_install_rela (bfd *output_bfd, asection *srela,
1630 Elf_Internal_Rela *rela)
1631{
1632 bfd_byte *loc;
1633 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela);
1634 loc = srela->contents + off;
1635 BFD_ASSERT (off < srela->size);
1636 bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
1637}
1638
1639/* Create a dynamic reloc against the GOT at offset OFFSET. The contents
1640 of the GOT at this offset have been initialized with the relocation. */
1641
1642static void
1643elf32_tic6x_make_got_dynreloc (bfd *output_bfd,
1644 struct elf32_tic6x_link_hash_table *htab,
1645 asection *sym_sec, bfd_vma offset)
1646{
1647 asection *sgot = htab->elf.sgot;
1648 Elf_Internal_Rela outrel;
1649 int dynindx;
1650
1651 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset;
1652 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
1653 if (sym_sec && sym_sec->output_section
1654 && ! bfd_is_abs_section (sym_sec->output_section)
1655 && ! bfd_is_und_section (sym_sec->output_section))
1656 {
1657 dynindx = elf_section_data (sym_sec->output_section)->dynindx;
1658 outrel.r_addend -= sym_sec->output_section->vma;
1659 }
1660 else
1661 {
1662 dynindx = 0;
1663 }
1664 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32);
1665 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel);
1666}
1667
1668/* Finish up dynamic symbol handling. We set the contents of various
1669 dynamic sections here. */
1670
1671static bfd_boolean
1672elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd,
1673 struct bfd_link_info *info,
1674 struct elf_link_hash_entry *h,
1675 Elf_Internal_Sym * sym)
1676{
1677 bfd *dynobj;
1678 struct elf32_tic6x_link_hash_table *htab;
1679
1680 htab = elf32_tic6x_hash_table (info);
1681 dynobj = htab->elf.dynobj;
1682
1683 if (h->plt.offset != (bfd_vma) -1)
1684 {
1685 bfd_vma plt_index;
1686 bfd_vma got_section_offset, got_dp_offset, rela_offset;
1687 Elf_Internal_Rela rela;
1688 bfd_byte *loc;
1689 asection *plt, *gotplt, *relplt;
1690 const struct elf_backend_data *bed;
1691
1692 bed = get_elf_backend_data (output_bfd);
1693
1694 BFD_ASSERT (htab->elf.splt != NULL);
1695 plt = htab->elf.splt;
1696 gotplt = htab->elf.sgotplt;
1697 relplt = htab->elf.srelplt;
1698
1699 /* This symbol has an entry in the procedure linkage table. Set
1700 it up. */
1701
1702 if ((h->dynindx == -1
1703 && !((h->forced_local || info->executable)
1704 && h->def_regular
1705 && h->type == STT_GNU_IFUNC))
1706 || plt == NULL
1707 || gotplt == NULL
1708 || relplt == NULL)
1709 abort ();
1710
1711 /* Get the index in the procedure linkage table which
1712 corresponds to this symbol. This is the index of this symbol
1713 in all the symbols for which we are making plt entries. The
1714 first entry in the procedure linkage table is reserved.
1715
1716 Get the offset into the .got table of the entry that
1717 corresponds to this function. Each .got entry is 4 bytes.
1718 The first three are reserved.
1719
1720 For static executables, we don't reserve anything. */
1721
1722 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1723 got_section_offset = plt_index + bed->got_header_size / 4;
1724 got_dp_offset = got_section_offset + htab->params.dsbt_size;
1725 rela_offset = plt_index * sizeof (Elf32_External_Rela);
1726
1727 got_section_offset *= 4;
1728
1729 /* Fill in the entry in the procedure linkage table. */
1730
1731 /* ldw .d2t2 *+B14($GOT(f)), b2 */
1732 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e,
1733 plt->contents + h->plt.offset);
1734 /* mvk .s2 low(rela_offset), b0 */
1735 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a,
1736 plt->contents + h->plt.offset + 4);
1737 /* mvkh .s2 high(rela_offset), b0 */
1738 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a,
1739 plt->contents + h->plt.offset + 8);
1740 /* nop 2 */
1741 bfd_put_32 (output_bfd, 0x00002000,
1742 plt->contents + h->plt.offset + 12);
1743 /* b .s2 b2 */
1744 bfd_put_32 (output_bfd, 0x00080362,
1745 plt->contents + h->plt.offset + 16);
1746 /* nop 5 */
1747 bfd_put_32 (output_bfd, 0x00008000,
1748 plt->contents + h->plt.offset + 20);
1749
1750 /* Fill in the entry in the global offset table. */
1751 bfd_put_32 (output_bfd,
1752 (plt->output_section->vma + plt->output_offset),
1753 gotplt->contents + got_section_offset);
1754
1755 /* Fill in the entry in the .rel.plt section. */
1756 rela.r_offset = (gotplt->output_section->vma
1757 + gotplt->output_offset
1758 + got_section_offset);
1759 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT);
1760 rela.r_addend = 0;
1761 loc = relplt->contents + rela_offset;
1762 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1763
1764 if (!h->def_regular)
1765 {
1766 /* Mark the symbol as undefined, rather than as defined in
1767 the .plt section. */
1768 sym->st_shndx = SHN_UNDEF;
1769 sym->st_value = 0;
1770 }
1771 }
1772
1773 if (h->got.offset != (bfd_vma) -1)
1774 {
1775 asection *sgot;
1776 asection *srela;
1777
1778 /* This symbol has an entry in the global offset table.
1779 Set it up. */
1780
1781 sgot = bfd_get_section_by_name (dynobj, ".got");
1782 srela = bfd_get_section_by_name (dynobj, ".rela.got");
1783 BFD_ASSERT (sgot != NULL && srela != NULL);
1784
1785 /* If this is a -Bsymbolic link, and the symbol is defined
1786 locally, we just want to emit a RELATIVE reloc. Likewise if
1787 the symbol was forced to be local because of a version file.
1788 The entry in the global offset table will already have been
1789 initialized in the relocate_section function. */
1790 if (info->shared
1791 && (info->symbolic
1792 || h->dynindx == -1 || h->forced_local) && h->def_regular)
1793 {
1794 asection *s = h->root.u.def.section;
1795 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s,
1796 h->got.offset & ~(bfd_vma) 1);
1797 }
1798 else
1799 {
1800 Elf_Internal_Rela outrel;
1801 bfd_put_32 (output_bfd, (bfd_vma) 0,
1802 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
1803 outrel.r_offset = (sgot->output_section->vma
1804 + sgot->output_offset
1805 + (h->got.offset & ~(bfd_vma) 1));
1806 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32);
1807 outrel.r_addend = 0;
1808
1809 elf32_tic6x_install_rela (output_bfd, srela, &outrel);
1810 }
1811 }
1812
1813 if (h->needs_copy)
1814 {
1815 Elf_Internal_Rela rel;
1816
1817 /* This symbol needs a copy reloc. Set it up. */
1818
1819 if (h->dynindx == -1
1820 || (h->root.type != bfd_link_hash_defined
1821 && h->root.type != bfd_link_hash_defweak)
1822 || htab->srelbss == NULL)
1823 abort ();
1824
1825 rel.r_offset = (h->root.u.def.value
1826 + h->root.u.def.section->output_section->vma
1827 + h->root.u.def.section->output_offset);
1828 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY);
1829 rel.r_addend = 0;
1830
1831 elf32_tic6x_install_rela (output_bfd, htab->srelbss, &rel);
1832 }
1833
1834 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1835 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1836 || h == elf_hash_table (info)->hgot)
1837 sym->st_shndx = SHN_ABS;
1838
1839 return TRUE;
1840}
1841
1842/* Update the got entry reference counts for the section being removed. */
1843
1844static bfd_boolean
1845elf32_tic6x_gc_sweep_hook (bfd *abfd,
1846 struct bfd_link_info *info,
1847 asection *sec,
1848 const Elf_Internal_Rela *relocs)
1849{
1850 struct elf32_tic6x_link_hash_table *htab;
1851 Elf_Internal_Shdr *symtab_hdr;
1852 struct elf_link_hash_entry **sym_hashes;
1853 bfd_signed_vma *local_got_refcounts;
1854 const Elf_Internal_Rela *rel, *relend;
1855
1856 if (info->relocatable)
1857 return TRUE;
1858
1859 htab = elf32_tic6x_hash_table (info);
1860 if (htab == NULL)
1861 return FALSE;
1862
1863 elf_section_data (sec)->local_dynrel = NULL;
1864
1865 symtab_hdr = &elf_symtab_hdr (abfd);
1866 sym_hashes = elf_sym_hashes (abfd);
1867 local_got_refcounts = elf_local_got_refcounts (abfd);
1868
1869 relend = relocs + sec->reloc_count;
1870 for (rel = relocs; rel < relend; rel++)
1871 {
1872 unsigned long r_symndx;
1873 unsigned int r_type;
1874 struct elf_link_hash_entry *h = NULL;
1875
1876 r_symndx = ELF32_R_SYM (rel->r_info);
1877 if (r_symndx >= symtab_hdr->sh_info)
1878 {
1879 struct elf32_tic6x_link_hash_entry *eh;
1880 struct elf_dyn_relocs **pp;
1881 struct elf_dyn_relocs *p;
1882
1883 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1884 while (h->root.type == bfd_link_hash_indirect
1885 || h->root.type == bfd_link_hash_warning)
1886 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1887 eh = (struct elf32_tic6x_link_hash_entry *) h;
1888
1889 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1890 if (p->sec == sec)
1891 {
1892 /* Everything must go for SEC. */
1893 *pp = p->next;
1894 break;
1895 }
1896 }
1897
1898 r_type = ELF32_R_TYPE (rel->r_info);
1899
1900 switch (r_type)
1901 {
1902 case R_C6000_SBR_GOT_U15_W:
1903 case R_C6000_SBR_GOT_L16_W:
1904 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 1905 case R_C6000_EHTYPE:
ac145307
BS		 1906 if (h != NULL)
1907 {
1908 if (h->got.refcount > 0)
1909 h->got.refcount -= 1;
1910 }
1911 else if (local_got_refcounts != NULL)
1912 {
1913 if (local_got_refcounts[r_symndx] > 0)
1914 local_got_refcounts[r_symndx] -= 1;
1915 }
1916 break;
1917
1918 default:
1919 break;
1920 }
1921 }
1922
1923 return TRUE;
1924}
1925
1926/* Adjust a symbol defined by a dynamic object and referenced by a
1927 regular object. The current definition is in some section of the
1928 dynamic object, but we're not including those sections. We have to
1929 change the definition to something the rest of the link can
1930 understand. */
1931
1932static bfd_boolean
1933elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info,
1934 struct elf_link_hash_entry *h)
1935{
1936 struct elf32_tic6x_link_hash_table *htab;
1937 bfd *dynobj;
1938 asection *s;
1939
1940 dynobj = elf_hash_table (info)->dynobj;
1941
1942 /* Make sure we know what is going on here. */
1943 BFD_ASSERT (dynobj != NULL
1944 && (h->needs_plt
1945 || h->u.weakdef != NULL
1946 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
1947
1948 /* If this is a function, put it in the procedure linkage table. We
1949 will fill in the contents of the procedure linkage table later,
1950 when we know the address of the .got section. */
1951 if (h->type == STT_FUNC
1952 || h->needs_plt)
1953 {
1954 if (h->plt.refcount <= 0
1955 || SYMBOL_CALLS_LOCAL (info, h)
1956 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1957 && h->root.type == bfd_link_hash_undefweak))
1958 {
1959 /* This case can occur if we saw a PLT32 reloc in an input
1960 file, but the symbol was never referred to by a dynamic
1961 object, or if all references were garbage collected. In
1962 such a case, we don't actually need to build a procedure
1963 linkage table, and we can just do a PC32 reloc instead. */
1964 h->plt.offset = (bfd_vma) -1;
1965 h->needs_plt = 0;
1966 }
1967
1968 return TRUE;
1969 }
1970
1971 /* If this is a weak symbol, and there is a real definition, the
1972 processor independent code will have arranged for us to see the
1973 real definition first, and we can just use the same value. */
1974 if (h->u.weakdef != NULL)
1975 {
1976 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1977 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1978 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1979 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1980 h->non_got_ref = h->u.weakdef->non_got_ref;
1981 return TRUE;
1982 }
1983
1984 /* This is a reference to a symbol defined by a dynamic object which
1985 is not a function. */
1986
1987 /* If we are creating a shared library, we must presume that the
1988 only references to the symbol are via the global offset table.
1989 For such cases we need not do anything here; the relocations will
1990 be handled correctly by relocate_section. */
1991 if (info->shared)
1992 return TRUE;
1993
1994 /* If there are no references to this symbol that do not use the
1995 GOT, we don't need to generate a copy reloc. */
1996 if (!h->non_got_ref)
1997 return TRUE;
1998
1999 /* If -z nocopyreloc was given, we won't generate them either. */
2000 if (info->nocopyreloc)
2001 {
2002 h->non_got_ref = 0;
2003 return TRUE;
2004 }
2005
2006 htab = elf32_tic6x_hash_table (info);
2007 if (htab == NULL)
2008 return FALSE;
2009
2010 if (h->size == 0)
2011 {
2012 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
2013 h->root.root.string);
2014 return TRUE;
2015 }
2016
2017 /* We must allocate the symbol in our .dynbss section, which will
2018 become part of the .bss section of the executable. There will be
2019 an entry for this symbol in the .dynsym section. The dynamic
2020 object will contain position independent code, so all references
2021 from the dynamic object to this symbol will go through the global
2022 offset table. The dynamic linker will use the .dynsym entry to
2023 determine the address it must put in the global offset table, so
2024 both the dynamic object and the regular object will refer to the
2025 same memory location for the variable. */
2026
2027 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2028 copy the initial value out of the dynamic object and into the
2029 runtime process image. */
2030 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2031 {
2032 htab->srelbss->size += sizeof (Elf32_External_Rela);
2033 h->needs_copy = 1;
2034 }
2035
2036 s = htab->sdynbss;
2037
2038 return _bfd_elf_adjust_dynamic_copy (h, s);
2039}
2040
41820509
JM		 2041static bfd_boolean
2042elf32_tic6x_new_section_hook (bfd *abfd, asection *sec)
2043{
2044 bfd_boolean ret;
2045
2046 ret = _bfd_elf_new_section_hook (abfd, sec);
2047 sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p;
2048
2049 return ret;
2050}
2051
2052/* Return true if relocation REL against section SEC is a REL rather
2053 than RELA relocation. RELOCS is the first relocation in the
2054 section and ABFD is the bfd that contains SEC. */
2055
2056static bfd_boolean
2057elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec,
2058 const Elf_Internal_Rela *relocs,
2059 const Elf_Internal_Rela *rel)
2060{
2061 Elf_Internal_Shdr *rel_hdr;
2062 const struct elf_backend_data *bed;
2063
2064 /* To determine which flavor of relocation this is, we depend on the
d4730f92
BS		 2065 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
2066 rel_hdr = elf_section_data (sec)->rel.hdr;
2067 if (rel_hdr == NULL)
2068 return FALSE;
41820509 2069 bed = get_elf_backend_data (abfd);
d4730f92
BS		 2070 return ((size_t) (rel - relocs)
2071 < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel);
41820509
JM		 2072}
2073
ac145307
BS		 2074/* We need dynamic symbols for every section, since segments can
2075 relocate independently. */
2076static bfd_boolean
2077elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2078 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2079 asection *p)
2080{
2081 switch (elf_section_data (p)->this_hdr.sh_type)
2082 {
2083 case SHT_PROGBITS:
2084 case SHT_NOBITS:
2085 /* If sh_type is yet undecided, assume it could be
2086 SHT_PROGBITS/SHT_NOBITS. */
2087 case SHT_NULL:
2088 return FALSE;
2089
2090 /* There shouldn't be section relative relocations
2091 against any other section. */
2092 default:
2093 return TRUE;
2094 }
2095}
2096
40b36596
JM		 2097static bfd_boolean
2098elf32_tic6x_relocate_section (bfd *output_bfd,
2099 struct bfd_link_info *info,
2100 bfd *input_bfd,
2101 asection *input_section,
2102 bfd_byte *contents,
2103 Elf_Internal_Rela *relocs,
2104 Elf_Internal_Sym *local_syms,
2105 asection **local_sections)
2106{
ac145307 2107 struct elf32_tic6x_link_hash_table *htab;
40b36596
JM		 2108 Elf_Internal_Shdr *symtab_hdr;
2109 struct elf_link_hash_entry **sym_hashes;
ac145307 2110 bfd_vma *local_got_offsets;
40b36596
JM		 2111 Elf_Internal_Rela *rel;
2112 Elf_Internal_Rela *relend;
2113 bfd_boolean ok = TRUE;
2114
ac145307 2115 htab = elf32_tic6x_hash_table (info);
40b36596
JM		 2116 symtab_hdr = & elf_symtab_hdr (input_bfd);
2117 sym_hashes = elf_sym_hashes (input_bfd);
ac145307 2118 local_got_offsets = elf_local_got_offsets (input_bfd);
40b36596
JM		 2119
2120 relend = relocs + input_section->reloc_count;
2121
2122 for (rel = relocs; rel < relend; rel ++)
2123 {
2124 int r_type;
2125 unsigned long r_symndx;
2126 arelent bfd_reloc;
2127 reloc_howto_type *howto;
2128 Elf_Internal_Sym *sym;
2129 asection *sec;
2130 struct elf_link_hash_entry *h;
ac145307 2131 bfd_vma off, relocation;
40b36596
JM		 2132 bfd_boolean unresolved_reloc;
2133 bfd_reloc_status_type r;
2134 struct bfd_link_hash_entry *sbh;
41820509 2135 bfd_boolean is_rel;
40b36596
JM		 2136
2137 r_type = ELF32_R_TYPE (rel->r_info);
2138 r_symndx = ELF32_R_SYM (rel->r_info);
2139
41820509
JM		 2140 is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section,
2141 relocs, rel);
2142
2143 if (is_rel)
2144 elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel);
2145 else
2146 elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel);
40b36596
JM		 2147 howto = bfd_reloc.howto;
2148 if (howto == NULL)
2149 {
2150 bfd_set_error (bfd_error_bad_value);
2151 return FALSE;
2152 }
2153
2154 h = NULL;
2155 sym = NULL;
2156 sec = NULL;
2157 unresolved_reloc = FALSE;
2158
2159 if (r_symndx < symtab_hdr->sh_info)
2160 {
2161 sym = local_syms + r_symndx;
2162 sec = local_sections[r_symndx];
2163 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2164 }
2165 else
2166 {
2167 bfd_boolean warned;
2168
2169 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2170 r_symndx, symtab_hdr, sym_hashes,
2171 h, sec, relocation,
2172 unresolved_reloc, warned);
2173 }
2174
2175 if (sec != NULL && elf_discarded_section (sec))
e4067dbb
DJ		 2176 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2177 rel, relend, howto, contents);
40b36596
JM		 2178
2179 if (info->relocatable)
41820509
JM		 2180 {
2181 if (is_rel
2182 && sym != NULL
2183 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2184 {
2185 rel->r_addend = 0;
2186 relocation = sec->output_offset + sym->st_value;
2187 r = _bfd_relocate_contents (howto, input_bfd, relocation,
2188 contents + rel->r_offset);
2189 goto done_reloc;
2190 }
2191 continue;
2192 }
40b36596
JM		 2193
2194 switch (r_type)
2195 {
2196 case R_C6000_NONE:
2197 case R_C6000_ALIGN:
2198 case R_C6000_FPHEAD:
2199 case R_C6000_NOCMP:
2200 /* No action needed. */
2201 continue;
2202
2203 case R_C6000_PCR_S21:
ac145307
BS		 2204 /* A branch to an undefined weak symbol is turned into a
2205 "b .s2 B3" instruction if the existing insn is of the
2206 form "b .s2 symbol". */
2207 if (h ? h->root.type == bfd_link_hash_undefweak
2208 && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1)
2209 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2210 {
2211 unsigned long oldval;
2212 oldval = bfd_get_32 (input_bfd, contents + rel->r_offset);
2213
2214 if ((oldval & 0x7e) == 0x12)
2215 {
2216 oldval &= 0xF0000001;
2217 bfd_put_32 (input_bfd, oldval | 0x000c0362,
2218 contents + rel->r_offset);
2219 r = bfd_reloc_ok;
2220 goto done_reloc;
2221 }
2222 }
2223
40b36596
JM		 2224 case R_C6000_PCR_S12:
2225 case R_C6000_PCR_S10:
2226 case R_C6000_PCR_S7:
ac145307
BS		 2227 if (h != NULL
2228 && h->plt.offset != (bfd_vma) -1
2229 && htab->elf.splt != NULL)
2230 {
2231 relocation = (htab->elf.splt->output_section->vma
2232 + htab->elf.splt->output_offset
2233 + h->plt.offset);
2234 }
2235
40b36596
JM		 2236 /* Generic PC-relative handling produces a value relative to
2237 the exact location of the relocation. Adjust it to be
2238 relative to the start of the fetch packet instead. */
2239 relocation += (input_section->output_section->vma
2240 + input_section->output_offset
2241 + rel->r_offset) & 0x1f;
ac145307
BS		 2242 unresolved_reloc = FALSE;
2243 break;
2244
2245 case R_C6000_DSBT_INDEX:
2246 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index;
2247 if (!info->shared || relocation != 0)
2248 break;
2249
2250 /* fall through */
40b36596
JM		 2251 case R_C6000_ABS32:
2252 case R_C6000_ABS16:
2253 case R_C6000_ABS8:
2254 case R_C6000_ABS_S16:
2255 case R_C6000_ABS_L16:
2256 case R_C6000_ABS_H16:
ac145307
BS		 2257 /* When generating a shared object or relocatable executable, these
2258 relocations are copied into the output file to be resolved at
2259 run time. */
2260 if ((info->shared || elf32_tic6x_using_dsbt (output_bfd))
2261 && (input_section->flags & SEC_ALLOC)
2262 && (h == NULL
2263 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2264 || h->root.type != bfd_link_hash_undefweak))
2265 {
2266 Elf_Internal_Rela outrel;
2267 bfd_boolean skip, relocate;
2268 asection *sreloc;
2269
2270 unresolved_reloc = FALSE;
2271
2272 sreloc = elf_section_data (input_section)->sreloc;
2273 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
2274
2275 skip = FALSE;
2276 relocate = FALSE;
2277
2278 outrel.r_offset =
2279 _bfd_elf_section_offset (output_bfd, info, input_section,
2280 rel->r_offset);
2281 if (outrel.r_offset == (bfd_vma) -1)
2282 skip = TRUE;
2283 else if (outrel.r_offset == (bfd_vma) -2)
2284 skip = TRUE, relocate = TRUE;
2285 outrel.r_offset += (input_section->output_section->vma
2286 + input_section->output_offset);
2287
2288 if (skip)
2289 memset (&outrel, 0, sizeof outrel);
2290 else if (h != NULL
2291 && h->dynindx != -1
2292 && (!info->shared
2293 || !info->symbolic
2294 || !h->def_regular))
2295 {
2296 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2297 outrel.r_addend = rel->r_addend;
2298 }
2299 else
2300 {
2301 long indx;
2302
2303 outrel.r_addend = relocation + rel->r_addend;
2304
2305 if (bfd_is_abs_section (sec))
2306 indx = 0;
2307 else if (sec == NULL || sec->owner == NULL)
2308 {
2309 bfd_set_error (bfd_error_bad_value);
2310 return FALSE;
2311 }
2312 else
2313 {
2314 asection *osec;
2315
2316 osec = sec->output_section;
2317 indx = elf_section_data (osec)->dynindx;
2318 outrel.r_addend -= osec->vma;
2319 BFD_ASSERT (indx != 0);
2320 }
2321
2322 outrel.r_info = ELF32_R_INFO (indx, r_type);
2323 }
2324
2325 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel);
2326
2327 /* If this reloc is against an external symbol, we do not want to
2328 fiddle with the addend. Otherwise, we need to include the symbol
2329 value so that it becomes an addend for the dynamic reloc. */
2330 if (! relocate)
2331 continue;
2332 }
2333
40b36596
JM		 2334 /* Generic logic OK. */
2335 break;
2336
2337 case R_C6000_SBR_U15_B:
2338 case R_C6000_SBR_U15_H:
2339 case R_C6000_SBR_U15_W:
2340 case R_C6000_SBR_S16:
2341 case R_C6000_SBR_L16_B:
2342 case R_C6000_SBR_L16_H:
2343 case R_C6000_SBR_L16_W:
2344 case R_C6000_SBR_H16_B:
2345 case R_C6000_SBR_H16_H:
2346 case R_C6000_SBR_H16_W:
2347 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
2348 FALSE, FALSE, TRUE);
2349 if (sbh != NULL
2350 && (sbh->type == bfd_link_hash_defined
2351 || sbh->type == bfd_link_hash_defweak))
ac145307
BS		 2352 {
2353 if (h ? (h->root.type == bfd_link_hash_undefweak
2354 && (htab->elf.splt == NULL
2355 || h->plt.offset == (bfd_vma) -1))
2356 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2357 relocation = 0;
2358 else
2359 relocation -= (sbh->u.def.value
2360 + sbh->u.def.section->output_section->vma
2361 + sbh->u.def.section->output_offset);
2362 }
40b36596
JM		 2363 else
2364 {
2365 (*_bfd_error_handler) (_("%B: SB-relative relocation but "
2366 "__c6xabi_DSBT_BASE not defined"),
2367 input_bfd);
2368 ok = FALSE;
2369 continue;
2370 }
2371 break;
2372
2373 case R_C6000_SBR_GOT_U15_W:
2374 case R_C6000_SBR_GOT_L16_W:
2375 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2376 case R_C6000_EHTYPE:
ac145307
BS		 2377 /* Relocation is to the entry for this symbol in the global
2378 offset table. */
2379 if (htab->elf.sgot == NULL)
2380 abort ();
2381
2382 if (h != NULL)
2383 {
2384 bfd_boolean dyn;
2385
2386 off = h->got.offset;
2387 dyn = htab->elf.dynamic_sections_created;
2388 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2389 || (info->shared
2390 && SYMBOL_REFERENCES_LOCAL (info, h))
2391 || (ELF_ST_VISIBILITY (h->other)
2392 && h->root.type == bfd_link_hash_undefweak))
2393 {
2394 /* This is actually a static link, or it is a
2395 -Bsymbolic link and the symbol is defined
2396 locally, or the symbol was forced to be local
2397 because of a version file. We must initialize
2398 this entry in the global offset table. Since the
2399 offset must always be a multiple of 4, we use the
2400 least significant bit to record whether we have
2401 initialized it already.
2402
2403 When doing a dynamic link, we create a .rel.got
2404 relocation entry to initialize the value. This
2405 is done in the finish_dynamic_symbol routine. */
2406 if ((off & 1) != 0)
2407 off &= ~1;
2408 else
2409 {
2410 bfd_put_32 (output_bfd, relocation,
2411 htab->elf.sgot->contents + off);
2412 h->got.offset |= 1;
2413
2414 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
2415 h)
2416 && !(ELF_ST_VISIBILITY (h->other)
2417 && h->root.type == bfd_link_hash_undefweak))
2418 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec,
2419 off);
2420 }
2421 }
2422 else
2423 unresolved_reloc = FALSE;
2424 }
2425 else
2426 {
2427 if (local_got_offsets == NULL)
2428 abort ();
2429
2430 off = local_got_offsets[r_symndx];
2431
2432 /* The offset must always be a multiple of 4. We use
2433 the least significant bit to record whether we have
2434 already generated the necessary reloc. */
2435 if ((off & 1) != 0)
2436 off &= ~1;
2437 else
2438 {
2439 bfd_put_32 (output_bfd, relocation,
2440 htab->elf.sgot->contents + off);
2441
2442 if (info->shared || elf32_tic6x_using_dsbt (output_bfd))
2443 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off);
2444
2445 local_got_offsets[r_symndx] |= 1;
2446 }
2447 }
2448
2449 if (off >= (bfd_vma) -2)
2450 abort ();
2451
2452 if (htab->dsbt)
2453 relocation = (htab->elf.sgot->output_section->vma
2454 + htab->elf.sgot->output_offset + off
2455 - htab->dsbt->output_section->vma
2456 - htab->dsbt->output_offset);
2457 else
2458 relocation = (htab->elf.sgot->output_section->vma
2459 + htab->elf.sgot->output_offset + off
2460 - htab->elf.sgotplt->output_section->vma
2461 - htab->elf.sgotplt->output_offset);
2462
2463 if (rel->r_addend != 0)
2464 {
2465 /* We can't do anything for a relocation which is against
2466 a symbol *plus offset*. GOT holds relocations for
2467 symbols. Make this an error; the compiler isn't
2468 allowed to pass us these kinds of things. */
2469 if (h == NULL)
2470 (*_bfd_error_handler)
2471 (_("%B, section %A: relocation %s with non-zero addend %d"
2472 " against local symbol"),
2473 input_bfd,
2474 input_section,
2475 elf32_tic6x_howto_table[r_type].name,
2476 rel->r_addend);
2477 else
2478 (*_bfd_error_handler)
2479 (_("%B, section %A: relocation %s with non-zero addend %d"
2480 " against symbol `%s'"),
2481 input_bfd,
2482 input_section,
2483 elf32_tic6x_howto_table[r_type].name,
2484 rel->r_addend,
2485 h->root.root.string[0] != '\0' ? h->root.root.string
2486 : _("[whose name is lost]"));
2487
2488 bfd_set_error (bfd_error_bad_value);
2489 return FALSE;
2490 }
2491 break;
2492
40b36596 2493 case R_C6000_PREL31:
44e87ece
PB		 2494 if (h != NULL
2495 && h->plt.offset != (bfd_vma) -1
2496 && htab->elf.splt != NULL)
2497 {
2498 relocation = (htab->elf.splt->output_section->vma
2499 + htab->elf.splt->output_offset
2500 + h->plt.offset);
2501 }
2502 break;
40b36596
JM		 2503
2504 case R_C6000_COPY:
2505 /* Invalid in relocatable object. */
2506 default:
2507 /* Unknown relocation. */
2508 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2509 input_bfd, r_type);
2510 ok = FALSE;
2511 continue;
2512 }
2513
2514 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2515 contents, rel->r_offset,
2516 relocation, rel->r_addend);
2517
41820509 2518 done_reloc:
40b36596
JM		 2519 if (r == bfd_reloc_ok
2520 && howto->complain_on_overflow == complain_overflow_bitfield)
2521 {
2522 /* Generic overflow handling accepts cases the ABI says
2523 should be rejected for R_C6000_ABS16 and
2524 R_C6000_ABS8. */
2525 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
2526 bfd_vma sbit = 1 << (howto->bitsize - 1);
2527 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
2528 bfd_vma value_sbits = value & sbits;
2529
2530 if (value_sbits != 0
2531 && value_sbits != sbit
2532 && value_sbits != sbits)
2533 r = bfd_reloc_overflow;
2534 }
2535
2536 if (r != bfd_reloc_ok)
2537 {
2538 const char *name;
2539 const char *error_message;
2540
2541 if (h != NULL)
2542 name = h->root.root.string;
2543 else
2544 {
2545 name = bfd_elf_string_from_elf_section (input_bfd,
2546 symtab_hdr->sh_link,
2547 sym->st_name);
2548 if (name == NULL)
2549 return FALSE;
2550 if (*name == '\0')
2551 name = bfd_section_name (input_bfd, sec);
2552 }
2553
2554 switch (r)
2555 {
2556 case bfd_reloc_overflow:
2557 /* If the overflowing reloc was to an undefined symbol,
2558 we have already printed one error message and there
2559 is no point complaining again. */
2560 if ((! h ||
2561 h->root.type != bfd_link_hash_undefined)
2562 && (!((*info->callbacks->reloc_overflow)
2563 (info, (h ? &h->root : NULL), name, howto->name,
2564 (bfd_vma) 0, input_bfd, input_section,
2565 rel->r_offset))))
2566 return FALSE;
2567 break;
2568
2569 case bfd_reloc_undefined:
2570 if (!((*info->callbacks->undefined_symbol)
2571 (info, name, input_bfd, input_section,
2572 rel->r_offset, TRUE)))
2573 return FALSE;
2574 break;
2575
2576 case bfd_reloc_outofrange:
2577 error_message = _("out of range");
2578 goto common_error;
2579
2580 case bfd_reloc_notsupported:
2581 error_message = _("unsupported relocation");
2582 goto common_error;
2583
2584 case bfd_reloc_dangerous:
2585 error_message = _("dangerous relocation");
2586 goto common_error;
2587
2588 default:
2589 error_message = _("unknown error");
2590 /* Fall through. */
2591
2592 common_error:
2593 BFD_ASSERT (error_message != NULL);
2594 if (!((*info->callbacks->reloc_dangerous)
2595 (info, error_message, input_bfd, input_section,
2596 rel->r_offset)))
2597 return FALSE;
2598 break;
2599 }
2600 }
2601 }
2602
2603 return ok;
2604}
2605
ac145307
BS		 2606\f
2607/* Look through the relocs for a section during the first phase, and
2608 calculate needed space in the global offset table, procedure linkage
2609 table, and dynamic reloc sections. */
2610
2611static bfd_boolean
2612elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info,
2613 asection *sec, const Elf_Internal_Rela *relocs)
2614{
2615 struct elf32_tic6x_link_hash_table *htab;
2616 Elf_Internal_Shdr *symtab_hdr;
2617 struct elf_link_hash_entry **sym_hashes;
2618 const Elf_Internal_Rela *rel;
2619 const Elf_Internal_Rela *rel_end;
2620 asection *sreloc;
2621
2622 if (info->relocatable)
2623 return TRUE;
2624
2625 htab = elf32_tic6x_hash_table (info);
2626 symtab_hdr = &elf_symtab_hdr (abfd);
2627 sym_hashes = elf_sym_hashes (abfd);
2628
2629 /* Create dynamic sections for relocatable executables so that we can
2630 copy relocations. */
2631 if (elf32_tic6x_using_dsbt (abfd)
2632 && ! htab->elf.dynamic_sections_created)
2633 {
2634 if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
2635 return FALSE;
2636 }
2637
2638 sreloc = NULL;
2639
2640 rel_end = relocs + sec->reloc_count;
2641 for (rel = relocs; rel < rel_end; rel++)
2642 {
2643 unsigned int r_type;
2644 unsigned long r_symndx;
2645 struct elf_link_hash_entry *h;
2646 Elf_Internal_Sym *isym;
2647
2648 r_symndx = ELF32_R_SYM (rel->r_info);
2649 r_type = ELF32_R_TYPE (rel->r_info);
2650
2651 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
2652 {
2653 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
2654 abfd,
2655 r_symndx);
2656 return FALSE;
2657 }
2658
2659 if (r_symndx < symtab_hdr->sh_info)
2660 {
2661 /* A local symbol. */
2662 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2663 abfd, r_symndx);
2664 if (isym == NULL)
2665 return FALSE;
2666 h = NULL;
2667 }
2668 else
2669 {
2670 isym = NULL;
2671 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2672 while (h->root.type == bfd_link_hash_indirect
2673 || h->root.type == bfd_link_hash_warning)
2674 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2675 }
2676
2677 switch (r_type)
2678 {
2679 case R_C6000_PCR_S21:
44e87ece 2680 case R_C6000_PREL31:
ac145307
BS		 2681 /* This symbol requires a procedure linkage table entry. We
2682 actually build the entry in adjust_dynamic_symbol,
2683 because this might be a case of linking PIC code which is
2684 never referenced by a dynamic object, in which case we
2685 don't need to generate a procedure linkage table entry
2686 after all. */
2687
2688 /* If this is a local symbol, we resolve it directly without
2689 creating a procedure linkage table entry. */
2690 if (h == NULL)
2691 continue;
2692
2693 h->needs_plt = 1;
2694 h->plt.refcount += 1;
2695 break;
2696
2697 case R_C6000_SBR_GOT_U15_W:
2698 case R_C6000_SBR_GOT_L16_W:
2699 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2700 case R_C6000_EHTYPE:
ac145307
BS		 2701 /* This symbol requires a global offset table entry. */
2702 if (h != NULL)
2703 {
2704 h->got.refcount += 1;
2705 }
2706 else
2707 {
2708 bfd_signed_vma *local_got_refcounts;
2709
2710 /* This is a global offset table entry for a local symbol. */
2711 local_got_refcounts = elf_local_got_refcounts (abfd);
2712 if (local_got_refcounts == NULL)
2713 {
2714 bfd_size_type size;
2715
2716 size = symtab_hdr->sh_info;
2717 size *= (sizeof (bfd_signed_vma)
2718 + sizeof (bfd_vma) + sizeof(char));
2719 local_got_refcounts = bfd_zalloc (abfd, size);
2720 if (local_got_refcounts == NULL)
2721 return FALSE;
2722 elf_local_got_refcounts (abfd) = local_got_refcounts;
2723 }
2724 local_got_refcounts[r_symndx] += 1;
2725 }
2726
2727 if (htab->elf.sgot == NULL)
2728 {
2729 if (htab->elf.dynobj == NULL)
2730 htab->elf.dynobj = abfd;
2731 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
2732 return FALSE;
2733 }
2734 break;
2735
2736 case R_C6000_DSBT_INDEX:
2737 /* We'd like to check for nonzero dsbt_index here, but it's
2738 set up only after check_relocs is called. Instead, we
2739 store the number of R_C6000_DSBT_INDEX relocs in the
2740 pc_count field, and potentially discard the extra space
2741 in elf32_tic6x_allocate_dynrelocs. */
2742 if (!info->shared)
2743 break;
2744
2745 /* fall through */
2746 case R_C6000_ABS32:
2747 case R_C6000_ABS16:
2748 case R_C6000_ABS8:
2749 case R_C6000_ABS_S16:
2750 case R_C6000_ABS_L16:
2751 case R_C6000_ABS_H16:
2752 /* If we are creating a shared library, and this is a reloc
2753 against a global symbol, or a non PC relative reloc
2754 against a local symbol, then we need to copy the reloc
2755 into the shared library. However, if we are linking with
2756 -Bsymbolic, we do not need to copy a reloc against a
2757 global symbol which is defined in an object we are
2758 including in the link (i.e., DEF_REGULAR is set). At
2759 this point we have not seen all the input files, so it is
2760 possible that DEF_REGULAR is not set now but will be set
2761 later (it is never cleared). In case of a weak definition,
2762 DEF_REGULAR may be cleared later by a strong definition in
2763 a shared library. We account for that possibility below by
2764 storing information in the relocs_copied field of the hash
2765 table entry. A similar situation occurs when creating
2766 shared libraries and symbol visibility changes render the
2767 symbol local.
2768
2769 If on the other hand, we are creating an executable, we
2770 may need to keep relocations for symbols satisfied by a
2771 dynamic library if we manage to avoid copy relocs for the
2772 symbol. */
2773 if ((info->shared || elf32_tic6x_using_dsbt (abfd))
2774 && (sec->flags & SEC_ALLOC) != 0)
2775 {
2776 struct elf_dyn_relocs *p;
2777 struct elf_dyn_relocs **head;
2778
2779 /* We must copy these reloc types into the output file.
2780 Create a reloc section in dynobj and make room for
2781 this reloc. */
2782 if (sreloc == NULL)
2783 {
2784 if (htab->elf.dynobj == NULL)
2785 htab->elf.dynobj = abfd;
2786
2787 sreloc = _bfd_elf_make_dynamic_reloc_section
2788 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE);
2789
2790 if (sreloc == NULL)
2791 return FALSE;
2792 }
2793
2794 /* If this is a global symbol, we count the number of
2795 relocations we need for this symbol. */
2796 if (h != NULL)
2797 {
2798 head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs;
2799 }
2800 else
2801 {
2802 /* Track dynamic relocs needed for local syms too.
2803 We really need local syms available to do this
2804 easily. Oh well. */
2805 void **vpp;
2806 asection *s;
2807
2808 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2809 if (s == NULL)
2810 s = sec;
2811
2812 vpp = &elf_section_data (s)->local_dynrel;
2813 head = (struct elf_dyn_relocs **)vpp;
2814 }
2815
2816 p = *head;
2817 if (p == NULL || p->sec != sec)
2818 {
2819 bfd_size_type amt = sizeof *p;
2820 p = bfd_alloc (htab->elf.dynobj, amt);
2821 if (p == NULL)
2822 return FALSE;
2823 p->next = *head;
2824 *head = p;
2825 p->sec = sec;
2826 p->count = 0;
2123f9ad 2827 p->pc_count = 0;
ac145307
BS		 2828 }
2829
2830 p->count += 1;
2831 if (r_type == R_C6000_DSBT_INDEX)
2832 p->pc_count += 1;
2833 }
2834 break;
2835
2836 case R_C6000_SBR_U15_B:
2837 case R_C6000_SBR_U15_H:
2838 case R_C6000_SBR_U15_W:
2839 case R_C6000_SBR_S16:
2840 case R_C6000_SBR_L16_B:
2841 case R_C6000_SBR_L16_H:
2842 case R_C6000_SBR_L16_W:
2843 case R_C6000_SBR_H16_B:
2844 case R_C6000_SBR_H16_H:
2845 case R_C6000_SBR_H16_W:
2846 if (h != NULL && info->executable)
2847 {
2848 /* For B14-relative addresses, we might need a copy
2849 reloc. */
2850 h->non_got_ref = 1;
2851 }
2852 break;
2853
2854 default:
2855 break;
2856 }
2857 }
2858
2859 return TRUE;
2860}
2861
2862static bfd_boolean
2863elf32_tic6x_add_symbol_hook (bfd *abfd,
2864 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2865 Elf_Internal_Sym *sym,
2866 const char **namep ATTRIBUTE_UNUSED,
2867 flagword *flagsp ATTRIBUTE_UNUSED,
2868 asection **secp,
2869 bfd_vma *valp)
2870{
2871 switch (sym->st_shndx)
2872 {
2873 case SHN_TIC6X_SCOMMON:
2874 *secp = bfd_make_section_old_way (abfd, ".scommon");
2875 (*secp)->flags |= SEC_IS_COMMON;
2876 *valp = sym->st_size;
2877 bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value));
2878 break;
2879 }
2880
2881 return TRUE;
2882}
2883
2884static void
2885elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
2886{
2887 elf_symbol_type *elfsym;
2888
2889 elfsym = (elf_symbol_type *) asym;
2890 switch (elfsym->internal_elf_sym.st_shndx)
2891 {
2892 case SHN_TIC6X_SCOMMON:
2893 if (tic6x_elf_scom_section.name == NULL)
2894 {
2895 /* Initialize the small common section. */
2896 tic6x_elf_scom_section.name = ".scommon";
2897 tic6x_elf_scom_section.flags = SEC_IS_COMMON;
2898 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section;
2899 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol;
2900 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr;
2901 tic6x_elf_scom_symbol.name = ".scommon";
2902 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM;
2903 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section;
2904 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol;
2905 }
2906 asym->section = &tic6x_elf_scom_section;
2907 asym->value = elfsym->internal_elf_sym.st_size;
2908 break;
2909 }
2910}
2911
2912static int
2913elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
2914 const char *name ATTRIBUTE_UNUSED,
2915 Elf_Internal_Sym *sym,
2916 asection *input_sec,
2917 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2918{
2919 /* If we see a common symbol, which implies a relocatable link, then
2920 if a symbol was small common in an input file, mark it as small
2921 common in the output file. */
2922 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
2923 sym->st_shndx = SHN_TIC6X_SCOMMON;
2924
2925 return 1;
2926}
2927
2928static bfd_boolean
2929elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2930 asection *sec,
2931 int *retval)
2932{
2933 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
2934 {
2935 *retval = SHN_TIC6X_SCOMMON;
2936 return TRUE;
2937 }
2938
2939 return FALSE;
2940}
2941
2942/* Allocate space in .plt, .got and associated reloc sections for
2943 dynamic relocs. */
2944
2945static bfd_boolean
2946elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2947{
2948 struct bfd_link_info *info;
2949 struct elf32_tic6x_link_hash_table *htab;
2950 struct elf32_tic6x_link_hash_entry *eh;
2951 struct elf_dyn_relocs *p;
2952
2953 if (h->root.type == bfd_link_hash_indirect)
2954 return TRUE;
2955
2956 if (h->root.type == bfd_link_hash_warning)
2957 /* When warning symbols are created, they **replace** the "real"
2958 entry in the hash table, thus we never get to see the real
2959 symbol in a hash traversal. So look at it now. */
2960 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2961 eh = (struct elf32_tic6x_link_hash_entry *) h;
2962
2963 info = (struct bfd_link_info *) inf;
2964 htab = elf32_tic6x_hash_table (info);
2965
2966 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0)
2967 {
2968 /* Make sure this symbol is output as a dynamic symbol.
2969 Undefined weak syms won't yet be marked as dynamic. */
2970 if (h->dynindx == -1 && !h->forced_local)
2971 {
2972 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2973 return FALSE;
2974 }
2975
2976 if (info->shared
2977 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
2978 {
2979 asection *s = htab->elf.splt;
2980
2981 /* If this is the first .plt entry, make room for the special
2982 first entry. */
2983 if (s->size == 0)
2984 s->size += PLT_ENTRY_SIZE;
2985
2986 h->plt.offset = s->size;
2987
2988 /* If this symbol is not defined in a regular file, and we are
2989 not generating a shared library, then set the symbol to this
2990 location in the .plt. This is required to make function
2991 pointers compare as equal between the normal executable and
2992 the shared library. */
2993 if (! info->shared && !h->def_regular)
2994 {
2995 h->root.u.def.section = s;
2996 h->root.u.def.value = h->plt.offset;
2997 }
2998
2999 /* Make room for this entry. */
3000 s->size += PLT_ENTRY_SIZE;
3001 /* We also need to make an entry in the .got.plt section, which
3002 will be placed in the .got section by the linker script. */
3003 htab->elf.sgotplt->size += 4;
3004 /* We also need to make an entry in the .rel.plt section. */
3005 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
3006 }
3007 else
3008 {
3009 h->plt.offset = (bfd_vma) -1;
3010 h->needs_plt = 0;
3011 }
3012 }
3013 else
3014 {
3015 h->plt.offset = (bfd_vma) -1;
3016 h->needs_plt = 0;
3017 }
3018
3019 if (h->got.refcount > 0)
3020 {
3021 asection *s;
3022
3023 /* Make sure this symbol is output as a dynamic symbol.
3024 Undefined weak syms won't yet be marked as dynamic. */
3025 if (h->dynindx == -1
3026 && !h->forced_local)
3027 {
3028 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3029 return FALSE;
3030 }
3031
3032 s = htab->elf.sgot;
3033 h->got.offset = s->size;
3034 s->size += 4;
3035
3036 if (!(ELF_ST_VISIBILITY (h->other)
3037 && h->root.type == bfd_link_hash_undefweak))
3038 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3039 }
3040 else
3041 h->got.offset = (bfd_vma) -1;
3042
3043 if (eh->dyn_relocs == NULL)
3044 return TRUE;
3045
3046 /* Discard relocs on undefined weak syms with non-default
3047 visibility. */
3048 if (info->shared || elf32_tic6x_using_dsbt (htab->obfd))
3049 {
3050 /* We use the pc_count field to hold the number of
3051 R_C6000_DSBT_INDEX relocs. */
3052 if (htab->params.dsbt_index != 0)
3053 {
3054 struct elf_dyn_relocs **pp;
3055
3056 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3057 {
3058 p->count -= p->pc_count;
3059 p->pc_count = 0;
3060 if (p->count == 0)
3061 *pp = p->next;
3062 else
3063 pp = &p->next;
3064 }
3065 }
3066
3067 if (eh->dyn_relocs != NULL
3068 && h->root.type == bfd_link_hash_undefweak)
3069 {
3070 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3071 eh->dyn_relocs = NULL;
3072
3073 /* Make sure undefined weak symbols are output as a dynamic
3074 symbol in PIEs. */
3075 else if (h->dynindx == -1
3076 && !h->forced_local)
3077 {
3078 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3079 return FALSE;
3080 }
3081 }
3082 }
3083
3084 /* Finally, allocate space. */
3085 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3086 {
3087 asection *sreloc;
3088
3089 sreloc = elf_section_data (p->sec)->sreloc;
3090
3091 BFD_ASSERT (sreloc != NULL);
3092 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3093 }
3094
3095 return TRUE;
3096}
3097
3098/* Find any dynamic relocs that apply to read-only sections. */
3099
3100static bfd_boolean
3101elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3102{
3103 struct elf32_tic6x_link_hash_entry *eh;
3104 struct elf_dyn_relocs *p;
3105
3106 if (h->root.type == bfd_link_hash_warning)
3107 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3108
3109 eh = (struct elf32_tic6x_link_hash_entry *) h;
3110 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3111 {
3112 asection *s = p->sec->output_section;
3113
3114 if (s != NULL && (s->flags & SEC_READONLY) != 0)
3115 {
3116 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3117
3118 info->flags |= DF_TEXTREL;
3119
3120 /* Not an error, just cut short the traversal. */
3121 return FALSE;
3122 }
3123 }
3124 return TRUE;
3125}
3126
3127/* Set the sizes of the dynamic sections. */
3128
3129static bfd_boolean
3130elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3131{
3132 struct elf32_tic6x_link_hash_table *htab;
3133 bfd *dynobj;
3134 asection *s;
3135 bfd_boolean relocs;
3136 bfd *ibfd;
3137
3138 htab = elf32_tic6x_hash_table (info);
3139 dynobj = htab->elf.dynobj;
3140 if (dynobj == NULL)
3141 abort ();
3142
3143 if (htab->elf.dynamic_sections_created)
3144 {
3145 /* Set the contents of the .interp section to the interpreter. */
3146 if (info->executable)
3147 {
3148 s = bfd_get_section_by_name (dynobj, ".interp");
3149 if (s == NULL)
3150 abort ();
3151 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3152 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3153 }
3154 }
3155
3156 /* Set up .got offsets for local syms, and space for local dynamic
3157 relocs. */
3158 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
3159 {
3160 bfd_signed_vma *local_got;
3161 bfd_signed_vma *end_local_got;
3162 char *local_tls_type;
3163 bfd_vma *local_tlsdesc_gotent;
3164 bfd_size_type locsymcount;
3165 Elf_Internal_Shdr *symtab_hdr;
3166 asection *srel;
3167
3168 for (s = ibfd->sections; s != NULL; s = s->next)
3169 {
3170 struct elf_dyn_relocs *p;
3171
3172 for (p = ((struct elf_dyn_relocs *)
3173 elf_section_data (s)->local_dynrel);
3174 p != NULL;
3175 p = p->next)
3176 {
3177 if (!bfd_is_abs_section (p->sec)
3178 && bfd_is_abs_section (p->sec->output_section))
3179 {
3180 /* Input section has been discarded, either because
3181 it is a copy of a linkonce section or due to
3182 linker script /DISCARD/, so we'll be discarding
3183 the relocs too. */
3184 }
3185 else if (p->count != 0)
3186 {
3187 srel = elf_section_data (p->sec)->sreloc;
3188 srel->size += p->count * sizeof (Elf32_External_Rela);
3189 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3190 info->flags |= DF_TEXTREL;
3191 }
3192 }
3193 }
3194
3195 local_got = elf_local_got_refcounts (ibfd);
3196 if (!local_got)
3197 continue;
3198
3199 symtab_hdr = &elf_symtab_hdr (ibfd);
3200 locsymcount = symtab_hdr->sh_info;
3201 end_local_got = local_got + locsymcount;
3202 s = htab->elf.sgot;
3203 srel = htab->elf.srelgot;
3204 for (; local_got < end_local_got;
3205 ++local_got, ++local_tls_type, ++local_tlsdesc_gotent)
3206 {
3207 if (*local_got > 0)
3208 {
3209 *local_got = s->size;
3210 s->size += 4;
3211
3212 if (info->shared || elf32_tic6x_using_dsbt (output_bfd))
3213 {
3214 srel->size += sizeof (Elf32_External_Rela);
3215 }
3216 }
3217 else
3218 *local_got = (bfd_vma) -1;
3219 }
3220 }
3221
3222 /* Allocate global sym .plt and .got entries, and space for global
3223 sym dynamic relocs. */
3224 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info);
3225
3226 /* We now have determined the sizes of the various dynamic sections.
3227 Allocate memory for them. */
3228 relocs = FALSE;
3229 for (s = dynobj->sections; s != NULL; s = s->next)
3230 {
3231 bfd_boolean strip_section = TRUE;
3232
3233 if ((s->flags & SEC_LINKER_CREATED) == 0)
3234 continue;
3235
3236 if (s == htab->dsbt)
3237 s->size = 4 * htab->params.dsbt_size;
3238 else if (s == htab->elf.splt
3239 || s == htab->elf.sgot
3240 || s == htab->elf.sgotplt
3241 || s == htab->sdynbss)
3242 {
3243 /* Strip this section if we don't need it; see the
3244 comment below. */
3245 /* We'd like to strip these sections if they aren't needed, but if
3246 we've exported dynamic symbols from them we must leave them.
3247 It's too late to tell BFD to get rid of the symbols. */
3248
3249 if (htab->elf.hplt != NULL)
3250 strip_section = FALSE;
3251
3252 /* Round up the size of the PLT section to a multiple of 32. */
3253 if (s == htab->elf.splt && s->size > 0)
3254 s->size = (s->size + 31) & ~(bfd_vma)31;
3255 }
3256 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
3257 {
3258 if (s->size != 0
3259 && s != htab->elf.srelplt)
3260 relocs = TRUE;
3261
3262 /* We use the reloc_count field as a counter if we need
3263 to copy relocs into the output file. */
3264 s->reloc_count = 0;
3265 }
3266 else
3267 {
3268 /* It's not one of our sections, so don't allocate space. */
3269 continue;
3270 }
3271
3272 if (s->size == 0)
3273 {
3274 /* If we don't need this section, strip it from the
3275 output file. This is mostly to handle .rel.bss and
3276 .rel.plt. We must create both sections in
3277 create_dynamic_sections, because they must be created
3278 before the linker maps input sections to output
3279 sections. The linker does that before
3280 adjust_dynamic_symbol is called, and it is that
3281 function which decides whether anything needs to go
3282 into these sections. */
3283 if (strip_section)
3284 s->flags |= SEC_EXCLUDE;
3285 continue;
3286 }
3287
3288 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3289 continue;
3290
3291 /* Allocate memory for the section contents. We use bfd_zalloc
3292 here in case unused entries are not reclaimed before the
3293 section's contents are written out. This should not happen,
3294 but this way if it does, we get a R_C6000_NONE reloc instead
3295 of garbage. */
3296 s->contents = bfd_zalloc (dynobj, s->size);
3297 if (s->contents == NULL)
3298 return FALSE;
3299 }
3300
3301 if (htab->elf.dynamic_sections_created)
3302 {
3303 /* Add some entries to the .dynamic section. We fill in the
3304 values later, in elf32_tic6x_finish_dynamic_sections, but we
3305 must add the entries now so that we get the correct size for
3306 the .dynamic section. The DT_DEBUG entry is filled in by the
3307 dynamic linker and used by the debugger. */
3308#define add_dynamic_entry(TAG, VAL) \
3309 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3310
3311 if (info->executable)
3312 {
3313 if (!add_dynamic_entry (DT_DEBUG, 0))
3314 return FALSE;
3315 }
3316
3317 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0)
3318 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size)
3319 || !add_dynamic_entry (DT_C6000_DSBT_INDEX,
3320 htab->params.dsbt_index))
3321 return FALSE;
3322
3323 if (htab->elf.splt->size != 0)
3324 {
3325 if (!add_dynamic_entry (DT_PLTGOT, 0)
3326 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3327 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3328 || !add_dynamic_entry (DT_JMPREL, 0))
3329 return FALSE;
3330 }
3331
3332 if (relocs)
3333 {
3334 if (!add_dynamic_entry (DT_RELA, 0)
3335 || !add_dynamic_entry (DT_RELASZ, 0)
3336 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3337 return FALSE;
3338
3339 /* If any dynamic relocs apply to a read-only section,
3340 then we need a DT_TEXTREL entry. */
3341 if ((info->flags & DF_TEXTREL) == 0)
3342 elf_link_hash_traverse (&htab->elf,
3343 elf32_tic6x_readonly_dynrelocs, info);
3344
3345 if ((info->flags & DF_TEXTREL) != 0)
3346 {
3347 if (!add_dynamic_entry (DT_TEXTREL, 0))
3348 return FALSE;
3349 }
3350 }
3351 }
3352#undef add_dynamic_entry
3353
3354 return TRUE;
3355}
3356
3357/* This function is called after all the input files have been read,
3358 and the input sections have been assigned to output sections. */
3359
3360static bfd_boolean
3361elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
3362{
3363 if (elf32_tic6x_using_dsbt (output_bfd) && !info->relocatable)
3364 {
3365 struct elf_link_hash_entry *h;
3366
3367 /* Force a PT_GNU_STACK segment to be created. */
3368 if (! elf_tdata (output_bfd)->stack_flags)
3369 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
3370
3371 /* Define __stacksize if it's not defined yet. */
3372 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3373 FALSE, FALSE, FALSE);
3374 if (! h || h->root.type != bfd_link_hash_defined
3375 || h->type != STT_OBJECT
3376 || !h->def_regular)
3377 {
3378 struct bfd_link_hash_entry *bh = NULL;
3379
3380 if (!(_bfd_generic_link_add_one_symbol
3381 (info, output_bfd, "__stacksize",
3382 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
3383 (const char *) NULL, FALSE,
3384 get_elf_backend_data (output_bfd)->collect, &bh)))
3385 return FALSE;
3386
3387 h = (struct elf_link_hash_entry *) bh;
3388 h->def_regular = 1;
3389 h->type = STT_OBJECT;
3390 }
3391 }
3392 return TRUE;
3393}
3394
3395static bfd_boolean
3396elf32_tic6x_modify_program_headers (bfd *output_bfd,
3397 struct bfd_link_info *info)
3398{
3399 struct elf_obj_tdata *tdata = elf_tdata (output_bfd);
3400 struct elf_segment_map *m;
3401 Elf_Internal_Phdr *p;
3402
3403 /* objcopy and strip preserve what's already there using
3404 elf32_tic6x_copy_private_bfd_data (). */
3405 if (! info)
3406 return TRUE;
3407
3408 for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
3409 if (m->p_type == PT_GNU_STACK)
3410 break;
3411
3412 if (m)
3413 {
3414 struct elf_link_hash_entry *h;
3415
3416 /* Obtain the pointer to the __stacksize symbol. */
3417 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3418 FALSE, FALSE, FALSE);
3419 if (h)
3420 {
3421 while (h->root.type == bfd_link_hash_indirect
3422 || h->root.type == bfd_link_hash_warning)
3423 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3424 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
3425 }
3426
3427 /* Set the header p_memsz from the symbol value. We
3428 intentionally ignore the symbol section. */
3429 if (h && h->root.type == bfd_link_hash_defined)
3430 p->p_memsz = h->root.u.def.value;
3431 else
3432 p->p_memsz = DEFAULT_STACK_SIZE;
3433
3434 p->p_align = 8;
3435 }
3436
3437 return TRUE;
3438}
3439
3440static bfd_boolean
3441elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3442 struct bfd_link_info *info)
3443{
3444 struct elf32_tic6x_link_hash_table *htab;
3445 bfd *dynobj;
3446 asection *sdyn;
3447
3448 htab = elf32_tic6x_hash_table (info);
3449 dynobj = htab->elf.dynobj;
3450 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3451
3452 if (elf_hash_table (info)->dynamic_sections_created)
3453 {
3454 Elf32_External_Dyn * dyncon;
3455 Elf32_External_Dyn * dynconend;
3456
3457 BFD_ASSERT (sdyn != NULL);
3458
3459 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3460 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3461
3462 for (; dyncon < dynconend; dyncon++)
3463 {
3464 Elf_Internal_Dyn dyn;
3465 asection *s;
3466
3467 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3468
3469 switch (dyn.d_tag)
3470 {
3471 default:
3472 break;
3473
3474 case DT_C6000_DSBT_BASE:
3475 s = htab->dsbt;
3476 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset);
3477 break;
3478
3479 case DT_PLTGOT:
3480 s = htab->elf.sgotplt;
3481 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3482 break;
3483
3484 case DT_JMPREL:
3485 s = htab->elf.srelplt;
3486 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3487 break;
3488
3489 case DT_PLTRELSZ:
3490 s = htab->elf.srelplt;
3491 dyn.d_un.d_val = s->size;
3492 break;
3493 }
3494 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3495 }
3496
3497 /* Fill in the first entry in the procedure linkage table. */
3498 if (htab->elf.splt && htab->elf.splt->size > 0)
3499 {
3500 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma
3501 + htab->elf.sgotplt->output_offset
3502 - htab->dsbt->output_section->vma
3503 - htab->dsbt->output_offset) / 4;
3504
3505 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3506 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e,
3507 htab->elf.splt->contents);
3508 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3509 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e,
3510 htab->elf.splt->contents + 4);
3511 /* nop 3 */
3512 bfd_put_32 (output_bfd, 0x00004000,
3513 htab->elf.splt->contents + 8);
3514 /* b .s2 b2 */
3515 bfd_put_32 (output_bfd, 0x00080362,
3516 htab->elf.splt->contents + 12);
3517 /* nop 5 */
3518 bfd_put_32 (output_bfd, 0x00008000,
3519 htab->elf.splt->contents + 16);
3520
3521 elf_section_data (htab->elf.splt->output_section)
3522 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3523 }
3524 }
3525
3526 return TRUE;
3527}
3528
3529/* Return address for Ith PLT stub in section PLT, for relocation REL
3530 or (bfd_vma) -1 if it should not be included. */
3531
3532static bfd_vma
3533elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt,
3534 const arelent *rel ATTRIBUTE_UNUSED)
3535{
3536 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3537}
3538
3539static int
3540elf32_tic6x_obj_attrs_arg_type (int tag)
59e6276b 3541{
3cbd1c06 3542 if (tag == Tag_ABI_compatibility)
59e6276b 3543 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
87779176
JM		 3544 else if (tag & 1)
3545 return ATTR_TYPE_FLAG_STR_VAL;
59e6276b 3546 else
59e6276b
JM		 3547 return ATTR_TYPE_FLAG_INT_VAL;
3548}
3549
87779176
JM		 3550static int
3551elf32_tic6x_obj_attrs_order (int num)
3552{
3553 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
3554 return Tag_ABI_conformance;
3555 if ((num - 1) < Tag_ABI_conformance)
3556 return num - 1;
3557 return num;
3558}
3559
0547accf
JM		 3560static bfd_boolean
3561elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
3562{
3563 if ((tag & 127) < 64)
3564 {
3565 _bfd_error_handler
3566 (_("%B: error: unknown mandatory EABI object attribute %d"),
3567 abfd, tag);
3568 bfd_set_error (bfd_error_bad_value);
3569 return FALSE;
3570 }
3571 else
3572 {
3573 _bfd_error_handler
3574 (_("%B: warning: unknown EABI object attribute %d"),
3575 abfd, tag);
3576 return TRUE;
3577 }
3578}
3579
75fa6dc1 3580/* Merge the Tag_ISA attribute values ARCH1 and ARCH2
59e6276b
JM		 3581 and return the merged value. At present, all merges succeed, so no
3582 return value for errors is defined. */
3583
3584int
3585elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
3586{
3587 int min_arch, max_arch;
3588
3589 min_arch = (arch1 < arch2 ? arch1 : arch2);
3590 max_arch = (arch1 > arch2 ? arch1 : arch2);
3591
3592 /* In most cases, the numerically greatest value is the correct
3593 merged value, but merging C64 and C67 results in C674X. */
75fa6dc1
JM		 3594 if ((min_arch == C6XABI_Tag_ISA_C67X
3595 || min_arch == C6XABI_Tag_ISA_C67XP)
3596 && (max_arch == C6XABI_Tag_ISA_C64X
3597 || max_arch == C6XABI_Tag_ISA_C64XP))
3598 return C6XABI_Tag_ISA_C674X;
59e6276b
JM		 3599
3600 return max_arch;
3601}
3602
87779176
JM		 3603/* Convert a Tag_ABI_array_object_alignment or
3604 Tag_ABI_array_object_align_expected tag value TAG to a
3605 corresponding alignment value; return the alignment, or -1 for an
3606 unknown tag value. */
3607
3608static int
3609elf32_tic6x_tag_to_array_alignment (int tag)
3610{
3611 switch (tag)
3612 {
3613 case 0:
3614 return 8;
3615
3616 case 1:
3617 return 4;
3618
3619 case 2:
3620 return 16;
3621
3622 default:
3623 return -1;
3624 }
3625}
3626
3627/* Convert a Tag_ABI_array_object_alignment or
3628 Tag_ABI_array_object_align_expected alignment ALIGN to a
3629 corresponding tag value; return the tag value. */
3630
3631static int
3632elf32_tic6x_array_alignment_to_tag (int align)
3633{
3634 switch (align)
3635 {
3636 case 8:
3637 return 0;
3638
3639 case 4:
3640 return 1;
3641
3642 case 16:
3643 return 2;
3644
3645 default:
3646 abort ();
3647 }
3648}
3649
59e6276b
JM		 3650/* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3651 succeeded, FALSE otherwise. */
3652
3653static bfd_boolean
3654elf32_tic6x_merge_attributes (bfd *ibfd, bfd *obfd)
3655{
87779176 3656 bfd_boolean result = TRUE;
59e6276b
JM		 3657 obj_attribute *in_attr;
3658 obj_attribute *out_attr;
87779176
JM		 3659 int i;
3660 int array_align_in, array_align_out, array_expect_in, array_expect_out;
59e6276b
JM		 3661
3662 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3663 {
3664 /* This is the first object. Copy the attributes. */
3665 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3666
3667 out_attr = elf_known_obj_attributes_proc (obfd);
3668
3669 /* Use the Tag_null value to indicate the attributes have been
3670 initialized. */
3671 out_attr[0].i = 1;
3672
3673 return TRUE;
3674 }
3675
3676 in_attr = elf_known_obj_attributes_proc (ibfd);
3677 out_attr = elf_known_obj_attributes_proc (obfd);
3678
3679 /* No specification yet for handling of unknown attributes, so just
3680 ignore them and handle known ones. */
59e6276b 3681
87779176
JM		 3682 if (out_attr[Tag_ABI_stack_align_preserved].i
3683 < in_attr[Tag_ABI_stack_align_needed].i)
3684 {
3685 _bfd_error_handler
3686 (_("error: %B requires more stack alignment than %B preserves"),
3687 ibfd, obfd);
3688 result = FALSE;
3689 }
3690 if (in_attr[Tag_ABI_stack_align_preserved].i
3691 < out_attr[Tag_ABI_stack_align_needed].i)
3692 {
3693 _bfd_error_handler
3694 (_("error: %B requires more stack alignment than %B preserves"),
3695 obfd, ibfd);
3696 result = FALSE;
3697 }
3698
3699 array_align_in = elf32_tic6x_tag_to_array_alignment
3700 (in_attr[Tag_ABI_array_object_alignment].i);
3701 if (array_align_in == -1)
3702 {
3703 _bfd_error_handler
3704 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3705 ibfd);
3706 result = FALSE;
3707 }
3708 array_align_out = elf32_tic6x_tag_to_array_alignment
3709 (out_attr[Tag_ABI_array_object_alignment].i);
3710 if (array_align_out == -1)
3711 {
3712 _bfd_error_handler
3713 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3714 obfd);
3715 result = FALSE;
3716 }
3717 array_expect_in = elf32_tic6x_tag_to_array_alignment
3718 (in_attr[Tag_ABI_array_object_align_expected].i);
3719 if (array_expect_in == -1)
3720 {
3721 _bfd_error_handler
3722 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3723 ibfd);
3724 result = FALSE;
3725 }
3726 array_expect_out = elf32_tic6x_tag_to_array_alignment
3727 (out_attr[Tag_ABI_array_object_align_expected].i);
3728 if (array_expect_out == -1)
3729 {
3730 _bfd_error_handler
3731 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3732 obfd);
3733 result = FALSE;
3734 }
3735
3736 if (array_align_out < array_expect_in)
3737 {
3738 _bfd_error_handler
3739 (_("error: %B requires more array alignment than %B preserves"),
3740 ibfd, obfd);
3741 result = FALSE;
3742 }
3743 if (array_align_in < array_expect_out)
b5593623
JM		 3744 {
3745 _bfd_error_handler
87779176 3746 (_("error: %B requires more array alignment than %B preserves"),
b5593623 3747 obfd, ibfd);
87779176 3748 result = FALSE;
b5593623 3749 }
87779176
JM		 3750
3751 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
3752 {
3753 switch (i)
3754 {
3755 case Tag_ISA:
3756 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
3757 out_attr[i].i);
3758 break;
3759
3760 case Tag_ABI_wchar_t:
3761 if (out_attr[i].i == 0)
3762 out_attr[i].i = in_attr[i].i;
3763 if (out_attr[i].i != 0
3764 && in_attr[i].i != 0
3765 && out_attr[i].i != in_attr[i].i)
3766 {
3767 _bfd_error_handler
3768 (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd);
3769 }
3770 break;
3771
3772 case Tag_ABI_stack_align_needed:
3773 if (out_attr[i].i < in_attr[i].i)
3774 out_attr[i].i = in_attr[i].i;
3775 break;
3776
3777 case Tag_ABI_stack_align_preserved:
3778 if (out_attr[i].i > in_attr[i].i)
3779 out_attr[i].i = in_attr[i].i;
3780 break;
3781
3782 case Tag_ABI_DSBT:
3783 if (out_attr[i].i != in_attr[i].i)
3784 {
3785 _bfd_error_handler
3786 (_("warning: %B and %B differ in whether code is "
3787 "compiled for DSBT"),
3788 obfd, ibfd);
3789 }
3790 break;
3791
87779176 3792 case Tag_ABI_PIC:
c6a8f6e0
BS		 3793 case Tag_ABI_PID:
3794 if (out_attr[i].i > in_attr[i].i)
3795 out_attr[i].i = in_attr[i].i;
87779176
JM		 3796 break;
3797
3798 case Tag_ABI_array_object_alignment:
3799 if (array_align_out != -1
3800 && array_align_in != -1
3801 && array_align_out > array_align_in)
3802 out_attr[i].i
3803 = elf32_tic6x_array_alignment_to_tag (array_align_in);
3804 break;
3805
3806 case Tag_ABI_array_object_align_expected:
3807 if (array_expect_out != -1
3808 && array_expect_in != -1
3809 && array_expect_out < array_expect_in)
3810 out_attr[i].i
3811 = elf32_tic6x_array_alignment_to_tag (array_expect_in);
3812 break;
3813
3814 case Tag_ABI_conformance:
3815 /* Merging for this attribute is not specified. As on ARM,
3816 treat a missing attribute as no claim to conform and only
3817 merge identical values. */
3818 if (out_attr[i].s == NULL
3819 || in_attr[i].s == NULL
3820 || strcmp (out_attr[i].s,
3821 in_attr[i].s) != 0)
3822 out_attr[i].s = NULL;
3823 break;
3824
0547accf
JM		 3825 case Tag_ABI_compatibility:
3826 /* Merged in _bfd_elf_merge_object_attributes. */
3827 break;
3828
87779176 3829 default:
0547accf
JM		 3830 result
3831 = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
87779176
JM		 3832 break;
3833 }
3834
3835 if (in_attr[i].type && !out_attr[i].type)
3836 out_attr[i].type = in_attr[i].type;
3837 }
3838
3cbd1c06
JM		 3839 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
3840 if (!_bfd_elf_merge_object_attributes (ibfd, obfd))
3841 return FALSE;
59e6276b 3842
0547accf
JM		 3843 result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
3844
87779176 3845 return result;
59e6276b
JM		 3846}
3847
3848static bfd_boolean
3849elf32_tic6x_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3850{
3851 if (!_bfd_generic_verify_endian_match (ibfd, obfd))
3852 return FALSE;
3853
3854 if (!elf32_tic6x_merge_attributes (ibfd, obfd))
3855 return FALSE;
3856
3857 return TRUE;
3858}
3859
ac145307
BS		 3860static bfd_boolean
3861elf32_tic6x_copy_private_data (bfd * ibfd, bfd * obfd)
3862{
3863 _bfd_elf_copy_private_bfd_data (ibfd, obfd);
3864
3865 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (obfd))
3866 return TRUE;
3867
3868 /* Copy the stack size. */
3869 if (elf_tdata (ibfd)->phdr && elf_tdata (obfd)->phdr
3870 && elf32_tic6x_using_dsbt (ibfd) && elf32_tic6x_using_dsbt (obfd))
3871 {
3872 unsigned i;
3873
3874 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
3875 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
3876 {
3877 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
3878
3879 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
3880 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
3881 {
3882 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
3883
3884 /* Rewrite the phdrs, since we're only called after they
3885 were first written. */
3886 if (bfd_seek (obfd,
3887 (bfd_signed_vma) get_elf_backend_data (obfd)
3888 ->s->sizeof_ehdr, SEEK_SET) != 0
3889 || get_elf_backend_data (obfd)->s
3890 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
3891 elf_elfheader (obfd)->e_phnum) != 0)
3892 return FALSE;
3893 break;
3894 }
3895
3896 break;
3897 }
3898 }
3899
3900 return TRUE;
3901}
40b36596
JM		 3902
3903#define TARGET_LITTLE_SYM bfd_elf32_tic6x_le_vec
3904#define TARGET_LITTLE_NAME "elf32-tic6x-le"
3905#define TARGET_BIG_SYM bfd_elf32_tic6x_be_vec
3906#define TARGET_BIG_NAME "elf32-tic6x-be"
3907#define ELF_ARCH bfd_arch_tic6x
ae95ffa6 3908#define ELF_TARGET_ID TIC6X_ELF_DATA
40b36596 3909#define ELF_MACHINE_CODE EM_TI_C6000
ac145307 3910#define ELF_MAXPAGESIZE 0x1000
40b36596
JM		 3911#define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
3912#define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
ac145307 3913#define bfd_elf32_bfd_copy_private_bfd_data elf32_tic6x_copy_private_data
59e6276b 3914#define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
41820509 3915#define bfd_elf32_mkobject elf32_tic6x_mkobject
ac145307
BS		 3916#define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
3917#define bfd_elf32_bfd_link_hash_table_free elf32_tic6x_link_hash_table_free
41820509 3918#define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
40b36596
JM		 3919#define elf_backend_can_gc_sections 1
3920#define elf_backend_default_use_rela_p 1
3921#define elf_backend_may_use_rel_p 1
3922#define elf_backend_may_use_rela_p 1
59e6276b 3923#define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
0547accf 3924#define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
87779176 3925#define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
75fa6dc1 3926#define elf_backend_obj_attrs_section ".c6xabi.attributes"
59e6276b
JM		 3927#define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
3928#define elf_backend_obj_attrs_vendor "c6xabi"
ac145307
BS		 3929#define elf_backend_can_refcount 1
3930#define elf_backend_want_got_plt 1
3931#define elf_backend_want_dynbss 1
3932#define elf_backend_plt_readonly 1
40b36596 3933#define elf_backend_rela_normal 1
ac145307
BS		 3934#define elf_backend_got_header_size 8
3935#define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook
3936#define elf_backend_modify_program_headers \
3937 elf32_tic6x_modify_program_headers
3938#define elf_backend_create_dynamic_sections \
3939 elf32_tic6x_create_dynamic_sections
3940#define elf_backend_adjust_dynamic_symbol \
3941 elf32_tic6x_adjust_dynamic_symbol
3942#define elf_backend_check_relocs elf32_tic6x_check_relocs
3943#define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
3944#define elf_backend_symbol_processing elf32_tic6x_symbol_processing
3945#define elf_backend_link_output_symbol_hook \
3946 elf32_tic6x_link_output_symbol_hook
3947#define elf_backend_section_from_bfd_section \
3948 elf32_tic6x_section_from_bfd_section
40b36596 3949#define elf_backend_relocate_section elf32_tic6x_relocate_section
ac145307
BS		 3950#define elf_backend_finish_dynamic_symbol \
3951 elf32_tic6x_finish_dynamic_symbol
3952#define elf_backend_always_size_sections \
3953 elf32_tic6x_always_size_sections
3954#define elf_backend_size_dynamic_sections \
3955 elf32_tic6x_size_dynamic_sections
3956#define elf_backend_finish_dynamic_sections \
3957 elf32_tic6x_finish_dynamic_sections
c6a8f6e0
BS		 3958#define bfd_elf32_bfd_final_link \
3959 elf32_tic6x_final_link
40b36596 3960#define elf_info_to_howto elf32_tic6x_info_to_howto
41820509 3961#define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
40b36596 3962
ac145307
BS		 3963#undef elf_backend_omit_section_dynsym
3964#define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
3965#define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
3966
3967
40b36596 3968#include "elf32-target.h"
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