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