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* elfcode.h (elf_checksum_contents): Free contents.
[binutils-gdb.git] / bfd / elf32-tic6x.c
1 /* 32-bit ELF support for TI C6X
2 Copyright 2010, 2011, 2012
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 <limits.h>
26 #include "bfd.h"
27 #include "libbfd.h"
28 #include "libiberty.h"
29 #include "elf-bfd.h"
30 #include "elf/tic6x.h"
31 #include "elf32-tic6x.h"
32
33 #define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0"
34
35 /* DSBT binaries have a default 128K stack. */
36 #define DEFAULT_STACK_SIZE 0x20000
37
38 /* The size in bytes of an entry in the procedure linkage table. */
39 #define PLT_ENTRY_SIZE 24
40
41 /* TI C6X ELF linker hash table. */
42
43 struct elf32_tic6x_link_hash_table
44 {
45 struct elf_link_hash_table elf;
46
47 /* Short-cuts to get to dynamic linker sections. */
48 asection *sdynbss;
49 asection *srelbss;
50
51 /* C6X specific command line arguments. */
52 struct elf32_tic6x_params params;
53
54 /* Small local sym cache. */
55 struct sym_cache sym_cache;
56
57 /* The output BFD, for convenience. */
58 bfd *obfd;
59
60 /* The .dsbt section. */
61 asection *dsbt;
62 };
63
64 /* Get the TI C6X ELF linker hash table from a link_info structure. */
65
66 #define elf32_tic6x_hash_table(p) \
67 ((struct elf32_tic6x_link_hash_table *) ((p)->hash))
68
69 /* TI C6X ELF linker hash entry. */
70
71 struct elf32_tic6x_link_hash_entry
72 {
73 struct elf_link_hash_entry elf;
74
75 /* Track dynamic relocs copied for this symbol. */
76 struct elf_dyn_relocs *dyn_relocs;
77 };
78
79 typedef enum
80 {
81 DELETE_EXIDX_ENTRY,
82 INSERT_EXIDX_CANTUNWIND_AT_END
83 }
84 tic6x_unwind_edit_type;
85
86 /* A (sorted) list of edits to apply to an unwind table. */
87 typedef struct tic6x_unwind_table_edit
88 {
89 tic6x_unwind_edit_type type;
90 /* Note: we sometimes want to insert an unwind entry corresponding to a
91 section different from the one we're currently writing out, so record the
92 (text) section this edit relates to here. */
93 asection *linked_section;
94 unsigned int index;
95 struct tic6x_unwind_table_edit *next;
96 }
97 tic6x_unwind_table_edit;
98
99 typedef struct _tic6x_elf_section_data
100 {
101 /* Information about mapping symbols. */
102 struct bfd_elf_section_data elf;
103 /* Information about unwind tables. */
104 union
105 {
106 /* Unwind info attached to a text section. */
107 struct
108 {
109 asection *tic6x_exidx_sec;
110 } text;
111
112 /* Unwind info attached to an .c6xabi.exidx section. */
113 struct
114 {
115 tic6x_unwind_table_edit *unwind_edit_list;
116 tic6x_unwind_table_edit *unwind_edit_tail;
117 } exidx;
118 } u;
119 }
120 _tic6x_elf_section_data;
121
122 #define elf32_tic6x_section_data(sec) \
123 ((_tic6x_elf_section_data *) elf_section_data (sec))
124
125 struct elf32_tic6x_obj_tdata
126 {
127 struct elf_obj_tdata root;
128
129 /* Whether to use RELA relocations when generating relocations.
130 This is a per-object flag to allow the assembler to generate REL
131 relocations for use in linker testcases. */
132 bfd_boolean use_rela_p;
133 };
134
135 #define elf32_tic6x_tdata(abfd) \
136 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
137
138 #define is_tic6x_elf(bfd) \
139 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
140 && elf_tdata (bfd) != NULL \
141 && elf_object_id (bfd) == TIC6X_ELF_DATA)
142
143 /* C6X ELF uses two common sections. One is the usual one, and the
144 other is for small objects. All the small objects are kept
145 together, and then referenced via the gp pointer, which yields
146 faster assembler code. This is what we use for the small common
147 section. This approach is copied from ecoff.c. */
148 static asection tic6x_elf_scom_section;
149 static asymbol tic6x_elf_scom_symbol;
150 static asymbol *tic6x_elf_scom_symbol_ptr;
151
152 static reloc_howto_type elf32_tic6x_howto_table[] =
153 {
154 HOWTO (R_C6000_NONE, /* type */
155 0, /* rightshift */
156 0, /* size (0 = byte, 1 = short, 2 = long) */
157 0, /* bitsize */
158 FALSE, /* pc_relative */
159 0, /* bitpos */
160 complain_overflow_dont,/* complain_on_overflow */
161 bfd_elf_generic_reloc, /* special_function */
162 "R_C6000_NONE", /* name */
163 FALSE, /* partial_inplace */
164 0, /* src_mask */
165 0, /* dst_mask */
166 FALSE), /* pcrel_offset */
167 HOWTO (R_C6000_ABS32, /* type */
168 0, /* rightshift */
169 2, /* size (0 = byte, 1 = short, 2 = long) */
170 32, /* bitsize */
171 FALSE, /* pc_relative */
172 0, /* bitpos */
173 complain_overflow_dont,/* complain_on_overflow */
174 bfd_elf_generic_reloc, /* special_function */
175 "R_C6000_ABS32", /* name */
176 FALSE, /* partial_inplace */
177 0, /* src_mask */
178 0xffffffff, /* dst_mask */
179 FALSE), /* pcrel_offset */
180 HOWTO (R_C6000_ABS16, /* type */
181 0, /* rightshift */
182 1, /* size (0 = byte, 1 = short, 2 = long) */
183 16, /* bitsize */
184 FALSE, /* pc_relative */
185 0, /* bitpos */
186 complain_overflow_bitfield,/* complain_on_overflow */
187 bfd_elf_generic_reloc, /* special_function */
188 "R_C6000_ABS16", /* name */
189 FALSE, /* partial_inplace */
190 0, /* src_mask */
191 0x0000ffff, /* dst_mask */
192 FALSE), /* pcrel_offset */
193 HOWTO (R_C6000_ABS8, /* type */
194 0, /* rightshift */
195 0, /* size (0 = byte, 1 = short, 2 = long) */
196 8, /* bitsize */
197 FALSE, /* pc_relative */
198 0, /* bitpos */
199 complain_overflow_bitfield,/* complain_on_overflow */
200 bfd_elf_generic_reloc, /* special_function */
201 "R_C6000_ABS8", /* name */
202 FALSE, /* partial_inplace */
203 0, /* src_mask */
204 0x000000ff, /* dst_mask */
205 FALSE), /* pcrel_offset */
206 HOWTO (R_C6000_PCR_S21, /* type */
207 2, /* rightshift */
208 2, /* size (0 = byte, 1 = short, 2 = long) */
209 21, /* bitsize */
210 TRUE, /* pc_relative */
211 7, /* bitpos */
212 complain_overflow_signed,/* complain_on_overflow */
213 bfd_elf_generic_reloc, /* special_function */
214 "R_C6000_PCR_S21", /* name */
215 FALSE, /* partial_inplace */
216 0, /* src_mask */
217 0x0fffff80, /* dst_mask */
218 TRUE), /* pcrel_offset */
219 HOWTO (R_C6000_PCR_S12, /* type */
220 2, /* rightshift */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
222 12, /* bitsize */
223 TRUE, /* pc_relative */
224 16, /* bitpos */
225 complain_overflow_signed,/* complain_on_overflow */
226 bfd_elf_generic_reloc, /* special_function */
227 "R_C6000_PCR_S12", /* name */
228 FALSE, /* partial_inplace */
229 0, /* src_mask */
230 0x0fff0000, /* dst_mask */
231 TRUE), /* pcrel_offset */
232 HOWTO (R_C6000_PCR_S10, /* type */
233 2, /* rightshift */
234 2, /* size (0 = byte, 1 = short, 2 = long) */
235 10, /* bitsize */
236 TRUE, /* pc_relative */
237 13, /* bitpos */
238 complain_overflow_signed,/* complain_on_overflow */
239 bfd_elf_generic_reloc, /* special_function */
240 "R_C6000_PCR_S10", /* name */
241 FALSE, /* partial_inplace */
242 0, /* src_mask */
243 0x007fe000, /* dst_mask */
244 TRUE), /* pcrel_offset */
245 HOWTO (R_C6000_PCR_S7, /* type */
246 2, /* rightshift */
247 2, /* size (0 = byte, 1 = short, 2 = long) */
248 7, /* bitsize */
249 TRUE, /* pc_relative */
250 16, /* bitpos */
251 complain_overflow_signed,/* complain_on_overflow */
252 bfd_elf_generic_reloc, /* special_function */
253 "R_C6000_PCR_S7", /* name */
254 FALSE, /* partial_inplace */
255 0, /* src_mask */
256 0x007f0000, /* dst_mask */
257 TRUE), /* pcrel_offset */
258 HOWTO (R_C6000_ABS_S16, /* type */
259 0, /* rightshift */
260 2, /* size (0 = byte, 1 = short, 2 = long) */
261 16, /* bitsize */
262 FALSE, /* pc_relative */
263 7, /* bitpos */
264 complain_overflow_signed,/* complain_on_overflow */
265 bfd_elf_generic_reloc, /* special_function */
266 "R_C6000_ABS_S16", /* name */
267 FALSE, /* partial_inplace */
268 0, /* src_mask */
269 0x007fff80, /* dst_mask */
270 FALSE), /* pcrel_offset */
271 HOWTO (R_C6000_ABS_L16, /* type */
272 0, /* rightshift */
273 2, /* size (0 = byte, 1 = short, 2 = long) */
274 16, /* bitsize */
275 FALSE, /* pc_relative */
276 7, /* bitpos */
277 complain_overflow_dont,/* complain_on_overflow */
278 bfd_elf_generic_reloc, /* special_function */
279 "R_C6000_ABS_L16", /* name */
280 FALSE, /* partial_inplace */
281 0, /* src_mask */
282 0x007fff80, /* dst_mask */
283 FALSE), /* pcrel_offset */
284 HOWTO (R_C6000_ABS_H16, /* type */
285 16, /* rightshift */
286 2, /* size (0 = byte, 1 = short, 2 = long) */
287 16, /* bitsize */
288 FALSE, /* pc_relative */
289 7, /* bitpos */
290 complain_overflow_dont,/* complain_on_overflow */
291 bfd_elf_generic_reloc, /* special_function */
292 "R_C6000_ABS_H16", /* name */
293 FALSE, /* partial_inplace */
294 0, /* src_mask */
295 0x007fff80, /* dst_mask */
296 FALSE), /* pcrel_offset */
297 HOWTO (R_C6000_SBR_U15_B, /* type */
298 0, /* rightshift */
299 2, /* size (0 = byte, 1 = short, 2 = long) */
300 15, /* bitsize */
301 FALSE, /* pc_relative */
302 8, /* bitpos */
303 complain_overflow_unsigned,/* complain_on_overflow */
304 bfd_elf_generic_reloc, /* special_function */
305 "R_C6000_SBR_U15_B", /* name */
306 FALSE, /* partial_inplace */
307 0, /* src_mask */
308 0x007fff00, /* dst_mask */
309 FALSE), /* pcrel_offset */
310 HOWTO (R_C6000_SBR_U15_H, /* type */
311 1, /* rightshift */
312 2, /* size (0 = byte, 1 = short, 2 = long) */
313 15, /* bitsize */
314 FALSE, /* pc_relative */
315 8, /* bitpos */
316 complain_overflow_unsigned,/* complain_on_overflow */
317 bfd_elf_generic_reloc, /* special_function */
318 "R_C6000_SBR_U15_H", /* name */
319 FALSE, /* partial_inplace */
320 0, /* src_mask */
321 0x007fff00, /* dst_mask */
322 FALSE), /* pcrel_offset */
323 HOWTO (R_C6000_SBR_U15_W, /* type */
324 2, /* rightshift */
325 2, /* size (0 = byte, 1 = short, 2 = long) */
326 15, /* bitsize */
327 FALSE, /* pc_relative */
328 8, /* bitpos */
329 complain_overflow_unsigned,/* complain_on_overflow */
330 bfd_elf_generic_reloc, /* special_function */
331 "R_C6000_SBR_U15_W", /* name */
332 FALSE, /* partial_inplace */
333 0, /* src_mask */
334 0x007fff00, /* dst_mask */
335 FALSE), /* pcrel_offset */
336 HOWTO (R_C6000_SBR_S16, /* type */
337 0, /* rightshift */
338 2, /* size (0 = byte, 1 = short, 2 = long) */
339 16, /* bitsize */
340 FALSE, /* pc_relative */
341 7, /* bitpos */
342 complain_overflow_signed,/* complain_on_overflow */
343 bfd_elf_generic_reloc, /* special_function */
344 "R_C6000_SBR_S16", /* name */
345 FALSE, /* partial_inplace */
346 0, /* src_mask */
347 0x007fff80, /* dst_mask */
348 FALSE), /* pcrel_offset */
349 HOWTO (R_C6000_SBR_L16_B, /* type */
350 0, /* rightshift */
351 2, /* size (0 = byte, 1 = short, 2 = long) */
352 16, /* bitsize */
353 FALSE, /* pc_relative */
354 7, /* bitpos */
355 complain_overflow_dont,/* complain_on_overflow */
356 bfd_elf_generic_reloc, /* special_function */
357 "R_C6000_SBR_L16_B", /* name */
358 FALSE, /* partial_inplace */
359 0, /* src_mask */
360 0x007fff80, /* dst_mask */
361 FALSE), /* pcrel_offset */
362 HOWTO (R_C6000_SBR_L16_H, /* type */
363 1, /* rightshift */
364 2, /* size (0 = byte, 1 = short, 2 = long) */
365 16, /* bitsize */
366 FALSE, /* pc_relative */
367 7, /* bitpos */
368 complain_overflow_dont,/* complain_on_overflow */
369 bfd_elf_generic_reloc, /* special_function */
370 "R_C6000_SBR_L16_H", /* name */
371 FALSE, /* partial_inplace */
372 0, /* src_mask */
373 0x007fff80, /* dst_mask */
374 FALSE), /* pcrel_offset */
375 HOWTO (R_C6000_SBR_L16_W, /* type */
376 2, /* rightshift */
377 2, /* size (0 = byte, 1 = short, 2 = long) */
378 16, /* bitsize */
379 FALSE, /* pc_relative */
380 7, /* bitpos */
381 complain_overflow_dont,/* complain_on_overflow */
382 bfd_elf_generic_reloc, /* special_function */
383 "R_C6000_SBR_L16_W", /* name */
384 FALSE, /* partial_inplace */
385 0, /* src_mask */
386 0x007fff80, /* dst_mask */
387 FALSE), /* pcrel_offset */
388 HOWTO (R_C6000_SBR_H16_B, /* type */
389 16, /* rightshift */
390 2, /* size (0 = byte, 1 = short, 2 = long) */
391 16, /* bitsize */
392 FALSE, /* pc_relative */
393 7, /* bitpos */
394 complain_overflow_dont,/* complain_on_overflow */
395 bfd_elf_generic_reloc, /* special_function */
396 "R_C6000_SBR_H16_B", /* name */
397 FALSE, /* partial_inplace */
398 0, /* src_mask */
399 0x007fff80, /* dst_mask */
400 FALSE), /* pcrel_offset */
401 HOWTO (R_C6000_SBR_H16_H, /* type */
402 17, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 16, /* bitsize */
405 FALSE, /* pc_relative */
406 7, /* bitpos */
407 complain_overflow_dont,/* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_C6000_SBR_H16_H", /* name */
410 FALSE, /* partial_inplace */
411 0, /* src_mask */
412 0x007fff80, /* dst_mask */
413 FALSE), /* pcrel_offset */
414 HOWTO (R_C6000_SBR_H16_W, /* type */
415 18, /* rightshift */
416 2, /* size (0 = byte, 1 = short, 2 = long) */
417 16, /* bitsize */
418 FALSE, /* pc_relative */
419 7, /* bitpos */
420 complain_overflow_dont,/* complain_on_overflow */
421 bfd_elf_generic_reloc, /* special_function */
422 "R_C6000_SBR_H16_W", /* name */
423 FALSE, /* partial_inplace */
424 0, /* src_mask */
425 0x007fff80, /* dst_mask */
426 FALSE), /* pcrel_offset */
427 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
428 2, /* rightshift */
429 2, /* size (0 = byte, 1 = short, 2 = long) */
430 15, /* bitsize */
431 FALSE, /* pc_relative */
432 8, /* bitpos */
433 complain_overflow_unsigned,/* complain_on_overflow */
434 bfd_elf_generic_reloc, /* special_function */
435 "R_C6000_SBR_GOT_U15_W",/* name */
436 FALSE, /* partial_inplace */
437 0, /* src_mask */
438 0x007fff00, /* dst_mask */
439 FALSE), /* pcrel_offset */
440 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
441 2, /* rightshift */
442 2, /* size (0 = byte, 1 = short, 2 = long) */
443 16, /* bitsize */
444 FALSE, /* pc_relative */
445 7, /* bitpos */
446 complain_overflow_dont,/* complain_on_overflow */
447 bfd_elf_generic_reloc, /* special_function */
448 "R_C6000_SBR_GOT_L16_W",/* name */
449 FALSE, /* partial_inplace */
450 0, /* src_mask */
451 0x007fff80, /* dst_mask */
452 FALSE), /* pcrel_offset */
453 HOWTO (R_C6000_SBR_GOT_H16_W, /* type */
454 18, /* rightshift */
455 2, /* size (0 = byte, 1 = short, 2 = long) */
456 16, /* bitsize */
457 FALSE, /* pc_relative */
458 7, /* bitpos */
459 complain_overflow_dont,/* complain_on_overflow */
460 bfd_elf_generic_reloc, /* special_function */
461 "R_C6000_SBR_GOT_H16_W",/* name */
462 FALSE, /* partial_inplace */
463 0, /* src_mask */
464 0x007fff80, /* dst_mask */
465 FALSE), /* pcrel_offset */
466 HOWTO (R_C6000_DSBT_INDEX, /* type */
467 0, /* rightshift */
468 2, /* size (0 = byte, 1 = short, 2 = long) */
469 15, /* bitsize */
470 FALSE, /* pc_relative */
471 8, /* bitpos */
472 complain_overflow_unsigned,/* complain_on_overflow */
473 bfd_elf_generic_reloc, /* special_function */
474 "R_C6000_DSBT_INDEX", /* name */
475 FALSE, /* partial_inplace */
476 0, /* src_mask */
477 0x007fff00, /* dst_mask */
478 FALSE), /* pcrel_offset */
479 HOWTO (R_C6000_PREL31, /* type */
480 1, /* rightshift */
481 2, /* size (0 = byte, 1 = short, 2 = long) */
482 31, /* bitsize */
483 TRUE, /* pc_relative */
484 0, /* bitpos */
485 complain_overflow_dont,/* complain_on_overflow */
486 bfd_elf_generic_reloc, /* special_function */
487 "R_C6000_PREL31", /* name */
488 FALSE, /* partial_inplace */
489 0, /* src_mask */
490 0x7fffffff, /* dst_mask */
491 TRUE), /* pcrel_offset */
492 HOWTO (R_C6000_COPY, /* type */
493 0, /* rightshift */
494 2, /* size (0 = byte, 1 = short, 2 = long) */
495 32, /* bitsize */
496 FALSE, /* pc_relative */
497 0, /* bitpos */
498 complain_overflow_dont,/* complain_on_overflow */
499 bfd_elf_generic_reloc, /* special_function */
500 "R_C6000_COPY", /* name */
501 FALSE, /* partial_inplace */
502 0, /* src_mask */
503 0xffffffff, /* dst_mask */
504 FALSE), /* pcrel_offset */
505 HOWTO (R_C6000_JUMP_SLOT, /* type */
506 0, /* rightshift */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
508 32, /* bitsize */
509 FALSE, /* pc_relative */
510 0, /* bitpos */
511 complain_overflow_dont,/* complain_on_overflow */
512 bfd_elf_generic_reloc, /* special_function */
513 "R_C6000_JUMP_SLOT", /* name */
514 FALSE, /* partial_inplace */
515 0, /* src_mask */
516 0xffffffff, /* dst_mask */
517 FALSE), /* pcrel_offset */
518 HOWTO (R_C6000_EHTYPE, /* type */
519 0, /* rightshift */
520 2, /* size (0 = byte, 1 = short, 2 = long) */
521 32, /* bitsize */
522 FALSE, /* pc_relative */
523 0, /* bitpos */
524 complain_overflow_dont,/* complain_on_overflow */
525 bfd_elf_generic_reloc, /* special_function */
526 "R_C6000_EHTYPE", /* name */
527 FALSE, /* partial_inplace */
528 0, /* src_mask */
529 0xffffffff, /* dst_mask */
530 FALSE), /* pcrel_offset */
531 HOWTO (R_C6000_PCR_H16, /* type */
532 16, /* rightshift */
533 2, /* size (0 = byte, 1 = short, 2 = long) */
534 16, /* bitsize */
535 TRUE, /* pc_relative */
536 7, /* bitpos */
537 complain_overflow_dont,/* complain_on_overflow */
538 bfd_elf_generic_reloc, /* special_function */
539 "R_C6000_PCR_H16", /* name */
540 FALSE, /* partial_inplace */
541 0, /* src_mask */
542 0x007fff80, /* dst_mask */
543 TRUE), /* pcrel_offset */
544 HOWTO (R_C6000_PCR_L16, /* type */
545 0, /* rightshift */
546 2, /* size (0 = byte, 1 = short, 2 = long) */
547 16, /* bitsize */
548 TRUE, /* pc_relative */
549 7, /* bitpos */
550 complain_overflow_dont,/* complain_on_overflow */
551 bfd_elf_generic_reloc, /* special_function */
552 "R_C6000_PCR_L16", /* name */
553 FALSE, /* partial_inplace */
554 0, /* src_mask */
555 0x007fff80, /* dst_mask */
556 TRUE), /* pcrel_offset */
557 EMPTY_HOWTO (31),
558 EMPTY_HOWTO (32),
559 EMPTY_HOWTO (33),
560 EMPTY_HOWTO (34),
561 EMPTY_HOWTO (35),
562 EMPTY_HOWTO (36),
563 EMPTY_HOWTO (37),
564 EMPTY_HOWTO (38),
565 EMPTY_HOWTO (39),
566 EMPTY_HOWTO (40),
567 EMPTY_HOWTO (41),
568 EMPTY_HOWTO (42),
569 EMPTY_HOWTO (43),
570 EMPTY_HOWTO (44),
571 EMPTY_HOWTO (45),
572 EMPTY_HOWTO (46),
573 EMPTY_HOWTO (47),
574 EMPTY_HOWTO (48),
575 EMPTY_HOWTO (49),
576 EMPTY_HOWTO (50),
577 EMPTY_HOWTO (51),
578 EMPTY_HOWTO (52),
579 EMPTY_HOWTO (53),
580 EMPTY_HOWTO (54),
581 EMPTY_HOWTO (55),
582 EMPTY_HOWTO (56),
583 EMPTY_HOWTO (57),
584 EMPTY_HOWTO (58),
585 EMPTY_HOWTO (59),
586 EMPTY_HOWTO (60),
587 EMPTY_HOWTO (61),
588 EMPTY_HOWTO (62),
589 EMPTY_HOWTO (63),
590 EMPTY_HOWTO (64),
591 EMPTY_HOWTO (65),
592 EMPTY_HOWTO (66),
593 EMPTY_HOWTO (67),
594 EMPTY_HOWTO (68),
595 EMPTY_HOWTO (69),
596 EMPTY_HOWTO (70),
597 EMPTY_HOWTO (71),
598 EMPTY_HOWTO (72),
599 EMPTY_HOWTO (73),
600 EMPTY_HOWTO (74),
601 EMPTY_HOWTO (75),
602 EMPTY_HOWTO (76),
603 EMPTY_HOWTO (77),
604 EMPTY_HOWTO (78),
605 EMPTY_HOWTO (79),
606 EMPTY_HOWTO (80),
607 EMPTY_HOWTO (81),
608 EMPTY_HOWTO (82),
609 EMPTY_HOWTO (83),
610 EMPTY_HOWTO (84),
611 EMPTY_HOWTO (85),
612 EMPTY_HOWTO (86),
613 EMPTY_HOWTO (87),
614 EMPTY_HOWTO (88),
615 EMPTY_HOWTO (89),
616 EMPTY_HOWTO (90),
617 EMPTY_HOWTO (91),
618 EMPTY_HOWTO (92),
619 EMPTY_HOWTO (93),
620 EMPTY_HOWTO (94),
621 EMPTY_HOWTO (95),
622 EMPTY_HOWTO (96),
623 EMPTY_HOWTO (97),
624 EMPTY_HOWTO (98),
625 EMPTY_HOWTO (99),
626 EMPTY_HOWTO (100),
627 EMPTY_HOWTO (101),
628 EMPTY_HOWTO (102),
629 EMPTY_HOWTO (103),
630 EMPTY_HOWTO (104),
631 EMPTY_HOWTO (105),
632 EMPTY_HOWTO (106),
633 EMPTY_HOWTO (107),
634 EMPTY_HOWTO (108),
635 EMPTY_HOWTO (109),
636 EMPTY_HOWTO (110),
637 EMPTY_HOWTO (111),
638 EMPTY_HOWTO (112),
639 EMPTY_HOWTO (113),
640 EMPTY_HOWTO (114),
641 EMPTY_HOWTO (115),
642 EMPTY_HOWTO (116),
643 EMPTY_HOWTO (117),
644 EMPTY_HOWTO (118),
645 EMPTY_HOWTO (119),
646 EMPTY_HOWTO (120),
647 EMPTY_HOWTO (121),
648 EMPTY_HOWTO (122),
649 EMPTY_HOWTO (123),
650 EMPTY_HOWTO (124),
651 EMPTY_HOWTO (125),
652 EMPTY_HOWTO (126),
653 EMPTY_HOWTO (127),
654 EMPTY_HOWTO (128),
655 EMPTY_HOWTO (129),
656 EMPTY_HOWTO (130),
657 EMPTY_HOWTO (131),
658 EMPTY_HOWTO (132),
659 EMPTY_HOWTO (133),
660 EMPTY_HOWTO (134),
661 EMPTY_HOWTO (135),
662 EMPTY_HOWTO (136),
663 EMPTY_HOWTO (137),
664 EMPTY_HOWTO (138),
665 EMPTY_HOWTO (139),
666 EMPTY_HOWTO (140),
667 EMPTY_HOWTO (141),
668 EMPTY_HOWTO (142),
669 EMPTY_HOWTO (143),
670 EMPTY_HOWTO (144),
671 EMPTY_HOWTO (145),
672 EMPTY_HOWTO (146),
673 EMPTY_HOWTO (147),
674 EMPTY_HOWTO (148),
675 EMPTY_HOWTO (149),
676 EMPTY_HOWTO (150),
677 EMPTY_HOWTO (151),
678 EMPTY_HOWTO (152),
679 EMPTY_HOWTO (153),
680 EMPTY_HOWTO (154),
681 EMPTY_HOWTO (155),
682 EMPTY_HOWTO (156),
683 EMPTY_HOWTO (157),
684 EMPTY_HOWTO (158),
685 EMPTY_HOWTO (159),
686 EMPTY_HOWTO (160),
687 EMPTY_HOWTO (161),
688 EMPTY_HOWTO (162),
689 EMPTY_HOWTO (163),
690 EMPTY_HOWTO (164),
691 EMPTY_HOWTO (165),
692 EMPTY_HOWTO (166),
693 EMPTY_HOWTO (167),
694 EMPTY_HOWTO (168),
695 EMPTY_HOWTO (169),
696 EMPTY_HOWTO (170),
697 EMPTY_HOWTO (171),
698 EMPTY_HOWTO (172),
699 EMPTY_HOWTO (173),
700 EMPTY_HOWTO (174),
701 EMPTY_HOWTO (175),
702 EMPTY_HOWTO (176),
703 EMPTY_HOWTO (177),
704 EMPTY_HOWTO (178),
705 EMPTY_HOWTO (179),
706 EMPTY_HOWTO (180),
707 EMPTY_HOWTO (181),
708 EMPTY_HOWTO (182),
709 EMPTY_HOWTO (183),
710 EMPTY_HOWTO (184),
711 EMPTY_HOWTO (185),
712 EMPTY_HOWTO (186),
713 EMPTY_HOWTO (187),
714 EMPTY_HOWTO (188),
715 EMPTY_HOWTO (189),
716 EMPTY_HOWTO (190),
717 EMPTY_HOWTO (191),
718 EMPTY_HOWTO (192),
719 EMPTY_HOWTO (193),
720 EMPTY_HOWTO (194),
721 EMPTY_HOWTO (195),
722 EMPTY_HOWTO (196),
723 EMPTY_HOWTO (197),
724 EMPTY_HOWTO (198),
725 EMPTY_HOWTO (199),
726 EMPTY_HOWTO (200),
727 EMPTY_HOWTO (201),
728 EMPTY_HOWTO (202),
729 EMPTY_HOWTO (203),
730 EMPTY_HOWTO (204),
731 EMPTY_HOWTO (205),
732 EMPTY_HOWTO (206),
733 EMPTY_HOWTO (207),
734 EMPTY_HOWTO (208),
735 EMPTY_HOWTO (209),
736 EMPTY_HOWTO (210),
737 EMPTY_HOWTO (211),
738 EMPTY_HOWTO (212),
739 EMPTY_HOWTO (213),
740 EMPTY_HOWTO (214),
741 EMPTY_HOWTO (215),
742 EMPTY_HOWTO (216),
743 EMPTY_HOWTO (217),
744 EMPTY_HOWTO (218),
745 EMPTY_HOWTO (219),
746 EMPTY_HOWTO (220),
747 EMPTY_HOWTO (221),
748 EMPTY_HOWTO (222),
749 EMPTY_HOWTO (223),
750 EMPTY_HOWTO (224),
751 EMPTY_HOWTO (225),
752 EMPTY_HOWTO (226),
753 EMPTY_HOWTO (227),
754 EMPTY_HOWTO (228),
755 EMPTY_HOWTO (229),
756 EMPTY_HOWTO (230),
757 EMPTY_HOWTO (231),
758 EMPTY_HOWTO (232),
759 EMPTY_HOWTO (233),
760 EMPTY_HOWTO (234),
761 EMPTY_HOWTO (235),
762 EMPTY_HOWTO (236),
763 EMPTY_HOWTO (237),
764 EMPTY_HOWTO (238),
765 EMPTY_HOWTO (239),
766 EMPTY_HOWTO (240),
767 EMPTY_HOWTO (241),
768 EMPTY_HOWTO (242),
769 EMPTY_HOWTO (243),
770 EMPTY_HOWTO (244),
771 EMPTY_HOWTO (245),
772 EMPTY_HOWTO (246),
773 EMPTY_HOWTO (247),
774 EMPTY_HOWTO (248),
775 EMPTY_HOWTO (249),
776 EMPTY_HOWTO (250),
777 EMPTY_HOWTO (251),
778 EMPTY_HOWTO (252),
779 HOWTO (R_C6000_ALIGN, /* type */
780 0, /* rightshift */
781 0, /* size (0 = byte, 1 = short, 2 = long) */
782 0, /* bitsize */
783 FALSE, /* pc_relative */
784 0, /* bitpos */
785 complain_overflow_dont,/* complain_on_overflow */
786 bfd_elf_generic_reloc, /* special_function */
787 "R_C6000_ALIGN", /* name */
788 FALSE, /* partial_inplace */
789 0, /* src_mask */
790 0, /* dst_mask */
791 FALSE), /* pcrel_offset */
792 HOWTO (R_C6000_FPHEAD, /* type */
793 0, /* rightshift */
794 0, /* size (0 = byte, 1 = short, 2 = long) */
795 0, /* bitsize */
796 FALSE, /* pc_relative */
797 0, /* bitpos */
798 complain_overflow_dont,/* complain_on_overflow */
799 bfd_elf_generic_reloc, /* special_function */
800 "R_C6000_FPHEAD", /* name */
801 FALSE, /* partial_inplace */
802 0, /* src_mask */
803 0, /* dst_mask */
804 FALSE), /* pcrel_offset */
805 HOWTO (R_C6000_NOCMP, /* type */
806 0, /* rightshift */
807 0, /* size (0 = byte, 1 = short, 2 = long) */
808 0, /* bitsize */
809 FALSE, /* pc_relative */
810 0, /* bitpos */
811 complain_overflow_dont,/* complain_on_overflow */
812 bfd_elf_generic_reloc, /* special_function */
813 "R_C6000_NOCMP", /* name */
814 FALSE, /* partial_inplace */
815 0, /* src_mask */
816 0, /* dst_mask */
817 FALSE) /* pcrel_offset */
818 };
819
820 static reloc_howto_type elf32_tic6x_howto_table_rel[] =
821 {
822 HOWTO (R_C6000_NONE, /* type */
823 0, /* rightshift */
824 0, /* size (0 = byte, 1 = short, 2 = long) */
825 0, /* bitsize */
826 FALSE, /* pc_relative */
827 0, /* bitpos */
828 complain_overflow_dont,/* complain_on_overflow */
829 bfd_elf_generic_reloc, /* special_function */
830 "R_C6000_NONE", /* name */
831 TRUE, /* partial_inplace */
832 0, /* src_mask */
833 0, /* dst_mask */
834 FALSE), /* pcrel_offset */
835 HOWTO (R_C6000_ABS32, /* type */
836 0, /* rightshift */
837 2, /* size (0 = byte, 1 = short, 2 = long) */
838 32, /* bitsize */
839 FALSE, /* pc_relative */
840 0, /* bitpos */
841 complain_overflow_dont,/* complain_on_overflow */
842 bfd_elf_generic_reloc, /* special_function */
843 "R_C6000_ABS32", /* name */
844 TRUE, /* partial_inplace */
845 0xffffffff, /* src_mask */
846 0xffffffff, /* dst_mask */
847 FALSE), /* pcrel_offset */
848 HOWTO (R_C6000_ABS16, /* type */
849 0, /* rightshift */
850 1, /* size (0 = byte, 1 = short, 2 = long) */
851 16, /* bitsize */
852 FALSE, /* pc_relative */
853 0, /* bitpos */
854 complain_overflow_bitfield,/* complain_on_overflow */
855 bfd_elf_generic_reloc, /* special_function */
856 "R_C6000_ABS16", /* name */
857 TRUE, /* partial_inplace */
858 0x0000ffff, /* src_mask */
859 0x0000ffff, /* dst_mask */
860 FALSE), /* pcrel_offset */
861 HOWTO (R_C6000_ABS8, /* type */
862 0, /* rightshift */
863 0, /* size (0 = byte, 1 = short, 2 = long) */
864 8, /* bitsize */
865 FALSE, /* pc_relative */
866 0, /* bitpos */
867 complain_overflow_bitfield,/* complain_on_overflow */
868 bfd_elf_generic_reloc, /* special_function */
869 "R_C6000_ABS8", /* name */
870 TRUE, /* partial_inplace */
871 0x000000ff, /* src_mask */
872 0x000000ff, /* dst_mask */
873 FALSE), /* pcrel_offset */
874 HOWTO (R_C6000_PCR_S21, /* type */
875 2, /* rightshift */
876 2, /* size (0 = byte, 1 = short, 2 = long) */
877 21, /* bitsize */
878 TRUE, /* pc_relative */
879 7, /* bitpos */
880 complain_overflow_signed,/* complain_on_overflow */
881 bfd_elf_generic_reloc, /* special_function */
882 "R_C6000_PCR_S21", /* name */
883 TRUE, /* partial_inplace */
884 0x0fffff80, /* src_mask */
885 0x0fffff80, /* dst_mask */
886 TRUE), /* pcrel_offset */
887 HOWTO (R_C6000_PCR_S12, /* type */
888 2, /* rightshift */
889 2, /* size (0 = byte, 1 = short, 2 = long) */
890 12, /* bitsize */
891 TRUE, /* pc_relative */
892 16, /* bitpos */
893 complain_overflow_signed,/* complain_on_overflow */
894 bfd_elf_generic_reloc, /* special_function */
895 "R_C6000_PCR_S12", /* name */
896 TRUE, /* partial_inplace */
897 0x0fff0000, /* src_mask */
898 0x0fff0000, /* dst_mask */
899 TRUE), /* pcrel_offset */
900 HOWTO (R_C6000_PCR_S10, /* type */
901 2, /* rightshift */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
903 10, /* bitsize */
904 TRUE, /* pc_relative */
905 13, /* bitpos */
906 complain_overflow_signed,/* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_C6000_PCR_S10", /* name */
909 TRUE, /* partial_inplace */
910 0x007fe000, /* src_mask */
911 0x007fe000, /* dst_mask */
912 TRUE), /* pcrel_offset */
913 HOWTO (R_C6000_PCR_S7, /* type */
914 2, /* rightshift */
915 2, /* size (0 = byte, 1 = short, 2 = long) */
916 7, /* bitsize */
917 TRUE, /* pc_relative */
918 16, /* bitpos */
919 complain_overflow_signed,/* complain_on_overflow */
920 bfd_elf_generic_reloc, /* special_function */
921 "R_C6000_PCR_S7", /* name */
922 TRUE, /* partial_inplace */
923 0x007f0000, /* src_mask */
924 0x007f0000, /* dst_mask */
925 TRUE), /* pcrel_offset */
926 HOWTO (R_C6000_ABS_S16, /* type */
927 0, /* rightshift */
928 2, /* size (0 = byte, 1 = short, 2 = long) */
929 16, /* bitsize */
930 FALSE, /* pc_relative */
931 7, /* bitpos */
932 complain_overflow_signed,/* complain_on_overflow */
933 bfd_elf_generic_reloc, /* special_function */
934 "R_C6000_ABS_S16", /* name */
935 TRUE, /* partial_inplace */
936 0x007fff80, /* src_mask */
937 0x007fff80, /* dst_mask */
938 FALSE), /* pcrel_offset */
939 HOWTO (R_C6000_ABS_L16, /* type */
940 0, /* rightshift */
941 2, /* size (0 = byte, 1 = short, 2 = long) */
942 16, /* bitsize */
943 FALSE, /* pc_relative */
944 7, /* bitpos */
945 complain_overflow_dont,/* complain_on_overflow */
946 bfd_elf_generic_reloc, /* special_function */
947 "R_C6000_ABS_L16", /* name */
948 TRUE, /* partial_inplace */
949 0x007fff80, /* src_mask */
950 0x007fff80, /* dst_mask */
951 FALSE), /* pcrel_offset */
952 EMPTY_HOWTO (R_C6000_ABS_H16),
953 HOWTO (R_C6000_SBR_U15_B, /* type */
954 0, /* rightshift */
955 2, /* size (0 = byte, 1 = short, 2 = long) */
956 15, /* bitsize */
957 FALSE, /* pc_relative */
958 8, /* bitpos */
959 complain_overflow_unsigned,/* complain_on_overflow */
960 bfd_elf_generic_reloc, /* special_function */
961 "R_C6000_SBR_U15_B", /* name */
962 TRUE, /* partial_inplace */
963 0x007fff00, /* src_mask */
964 0x007fff00, /* dst_mask */
965 FALSE), /* pcrel_offset */
966 HOWTO (R_C6000_SBR_U15_H, /* type */
967 1, /* rightshift */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
969 15, /* bitsize */
970 FALSE, /* pc_relative */
971 8, /* bitpos */
972 complain_overflow_unsigned,/* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_C6000_SBR_U15_H", /* name */
975 TRUE, /* partial_inplace */
976 0x007fff00, /* src_mask */
977 0x007fff00, /* dst_mask */
978 FALSE), /* pcrel_offset */
979 HOWTO (R_C6000_SBR_U15_W, /* type */
980 2, /* rightshift */
981 2, /* size (0 = byte, 1 = short, 2 = long) */
982 15, /* bitsize */
983 FALSE, /* pc_relative */
984 8, /* bitpos */
985 complain_overflow_unsigned,/* complain_on_overflow */
986 bfd_elf_generic_reloc, /* special_function */
987 "R_C6000_SBR_U15_W", /* name */
988 TRUE, /* partial_inplace */
989 0x007fff00, /* src_mask */
990 0x007fff00, /* dst_mask */
991 FALSE), /* pcrel_offset */
992 HOWTO (R_C6000_SBR_S16, /* type */
993 0, /* rightshift */
994 2, /* size (0 = byte, 1 = short, 2 = long) */
995 16, /* bitsize */
996 FALSE, /* pc_relative */
997 7, /* bitpos */
998 complain_overflow_signed,/* complain_on_overflow */
999 bfd_elf_generic_reloc, /* special_function */
1000 "R_C6000_SBR_S16", /* name */
1001 TRUE, /* partial_inplace */
1002 0x007fff80, /* src_mask */
1003 0x007fff80, /* dst_mask */
1004 FALSE), /* pcrel_offset */
1005 HOWTO (R_C6000_SBR_L16_B, /* type */
1006 0, /* rightshift */
1007 2, /* size (0 = byte, 1 = short, 2 = long) */
1008 16, /* bitsize */
1009 FALSE, /* pc_relative */
1010 7, /* bitpos */
1011 complain_overflow_dont,/* complain_on_overflow */
1012 bfd_elf_generic_reloc, /* special_function */
1013 "R_C6000_SBR_L16_B", /* name */
1014 TRUE, /* partial_inplace */
1015 0x007fff80, /* src_mask */
1016 0x007fff80, /* dst_mask */
1017 FALSE), /* pcrel_offset */
1018 HOWTO (R_C6000_SBR_L16_H, /* type */
1019 1, /* rightshift */
1020 2, /* size (0 = byte, 1 = short, 2 = long) */
1021 16, /* bitsize */
1022 FALSE, /* pc_relative */
1023 7, /* bitpos */
1024 complain_overflow_dont,/* complain_on_overflow */
1025 bfd_elf_generic_reloc, /* special_function */
1026 "R_C6000_SBR_L16_H", /* name */
1027 TRUE, /* partial_inplace */
1028 0x007fff80, /* src_mask */
1029 0x007fff80, /* dst_mask */
1030 FALSE), /* pcrel_offset */
1031 HOWTO (R_C6000_SBR_L16_W, /* type */
1032 2, /* rightshift */
1033 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 16, /* bitsize */
1035 FALSE, /* pc_relative */
1036 7, /* bitpos */
1037 complain_overflow_dont,/* complain_on_overflow */
1038 bfd_elf_generic_reloc, /* special_function */
1039 "R_C6000_SBR_L16_W", /* name */
1040 TRUE, /* partial_inplace */
1041 0x007fff80, /* src_mask */
1042 0x007fff80, /* dst_mask */
1043 FALSE), /* pcrel_offset */
1044 EMPTY_HOWTO (R_C6000_SBR_H16_B),
1045 EMPTY_HOWTO (R_C6000_SBR_H16_H),
1046 EMPTY_HOWTO (R_C6000_SBR_H16_W),
1047 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
1048 2, /* rightshift */
1049 2, /* size (0 = byte, 1 = short, 2 = long) */
1050 15, /* bitsize */
1051 FALSE, /* pc_relative */
1052 8, /* bitpos */
1053 complain_overflow_unsigned,/* complain_on_overflow */
1054 bfd_elf_generic_reloc, /* special_function */
1055 "R_C6000_SBR_GOT_U15_W",/* name */
1056 TRUE, /* partial_inplace */
1057 0x007fff00, /* src_mask */
1058 0x007fff00, /* dst_mask */
1059 FALSE), /* pcrel_offset */
1060 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
1061 2, /* rightshift */
1062 2, /* size (0 = byte, 1 = short, 2 = long) */
1063 16, /* bitsize */
1064 FALSE, /* pc_relative */
1065 7, /* bitpos */
1066 complain_overflow_dont,/* complain_on_overflow */
1067 bfd_elf_generic_reloc, /* special_function */
1068 "R_C6000_SBR_GOT_L16_W",/* name */
1069 TRUE, /* partial_inplace */
1070 0x007fff80, /* src_mask */
1071 0x007fff80, /* dst_mask */
1072 FALSE), /* pcrel_offset */
1073 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W),
1074 HOWTO (R_C6000_DSBT_INDEX, /* type */
1075 0, /* rightshift */
1076 2, /* size (0 = byte, 1 = short, 2 = long) */
1077 15, /* bitsize */
1078 FALSE, /* pc_relative */
1079 8, /* bitpos */
1080 complain_overflow_unsigned,/* complain_on_overflow */
1081 bfd_elf_generic_reloc, /* special_function */
1082 "R_C6000_DSBT_INDEX", /* name */
1083 TRUE, /* partial_inplace */
1084 0, /* src_mask */
1085 0x007fff00, /* dst_mask */
1086 FALSE), /* pcrel_offset */
1087 HOWTO (R_C6000_PREL31, /* type */
1088 1, /* rightshift */
1089 2, /* size (0 = byte, 1 = short, 2 = long) */
1090 31, /* bitsize */
1091 TRUE, /* pc_relative */
1092 0, /* bitpos */
1093 complain_overflow_dont,/* complain_on_overflow */
1094 bfd_elf_generic_reloc, /* special_function */
1095 "R_C6000_PREL31", /* name */
1096 TRUE, /* partial_inplace */
1097 0, /* src_mask */
1098 0x7fffffff, /* dst_mask */
1099 TRUE), /* pcrel_offset */
1100 HOWTO (R_C6000_COPY, /* type */
1101 0, /* rightshift */
1102 2, /* size (0 = byte, 1 = short, 2 = long) */
1103 32, /* bitsize */
1104 FALSE, /* pc_relative */
1105 0, /* bitpos */
1106 complain_overflow_dont,/* complain_on_overflow */
1107 bfd_elf_generic_reloc, /* special_function */
1108 "R_C6000_COPY", /* name */
1109 TRUE, /* partial_inplace */
1110 0, /* src_mask */
1111 0xffffffff, /* dst_mask */
1112 FALSE), /* pcrel_offset */
1113 HOWTO (R_C6000_JUMP_SLOT, /* type */
1114 0, /* rightshift */
1115 2, /* size (0 = byte, 1 = short, 2 = long) */
1116 32, /* bitsize */
1117 FALSE, /* pc_relative */
1118 0, /* bitpos */
1119 complain_overflow_dont,/* complain_on_overflow */
1120 bfd_elf_generic_reloc, /* special_function */
1121 "R_C6000_JUMP_SLOT", /* name */
1122 FALSE, /* partial_inplace */
1123 0, /* src_mask */
1124 0xffffffff, /* dst_mask */
1125 FALSE), /* pcrel_offset */
1126 HOWTO (R_C6000_EHTYPE, /* type */
1127 0, /* rightshift */
1128 2, /* size (0 = byte, 1 = short, 2 = long) */
1129 32, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont,/* complain_on_overflow */
1133 bfd_elf_generic_reloc, /* special_function */
1134 "R_C6000_EHTYPE", /* name */
1135 FALSE, /* partial_inplace */
1136 0, /* src_mask */
1137 0xffffffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
1139 EMPTY_HOWTO (R_C6000_PCR_H16),
1140 EMPTY_HOWTO (R_C6000_PCR_L16),
1141 EMPTY_HOWTO (31),
1142 EMPTY_HOWTO (32),
1143 EMPTY_HOWTO (33),
1144 EMPTY_HOWTO (34),
1145 EMPTY_HOWTO (35),
1146 EMPTY_HOWTO (36),
1147 EMPTY_HOWTO (37),
1148 EMPTY_HOWTO (38),
1149 EMPTY_HOWTO (39),
1150 EMPTY_HOWTO (40),
1151 EMPTY_HOWTO (41),
1152 EMPTY_HOWTO (42),
1153 EMPTY_HOWTO (43),
1154 EMPTY_HOWTO (44),
1155 EMPTY_HOWTO (45),
1156 EMPTY_HOWTO (46),
1157 EMPTY_HOWTO (47),
1158 EMPTY_HOWTO (48),
1159 EMPTY_HOWTO (49),
1160 EMPTY_HOWTO (50),
1161 EMPTY_HOWTO (51),
1162 EMPTY_HOWTO (52),
1163 EMPTY_HOWTO (53),
1164 EMPTY_HOWTO (54),
1165 EMPTY_HOWTO (55),
1166 EMPTY_HOWTO (56),
1167 EMPTY_HOWTO (57),
1168 EMPTY_HOWTO (58),
1169 EMPTY_HOWTO (59),
1170 EMPTY_HOWTO (60),
1171 EMPTY_HOWTO (61),
1172 EMPTY_HOWTO (62),
1173 EMPTY_HOWTO (63),
1174 EMPTY_HOWTO (64),
1175 EMPTY_HOWTO (65),
1176 EMPTY_HOWTO (66),
1177 EMPTY_HOWTO (67),
1178 EMPTY_HOWTO (68),
1179 EMPTY_HOWTO (69),
1180 EMPTY_HOWTO (70),
1181 EMPTY_HOWTO (71),
1182 EMPTY_HOWTO (72),
1183 EMPTY_HOWTO (73),
1184 EMPTY_HOWTO (74),
1185 EMPTY_HOWTO (75),
1186 EMPTY_HOWTO (76),
1187 EMPTY_HOWTO (77),
1188 EMPTY_HOWTO (78),
1189 EMPTY_HOWTO (79),
1190 EMPTY_HOWTO (80),
1191 EMPTY_HOWTO (81),
1192 EMPTY_HOWTO (82),
1193 EMPTY_HOWTO (83),
1194 EMPTY_HOWTO (84),
1195 EMPTY_HOWTO (85),
1196 EMPTY_HOWTO (86),
1197 EMPTY_HOWTO (87),
1198 EMPTY_HOWTO (88),
1199 EMPTY_HOWTO (89),
1200 EMPTY_HOWTO (90),
1201 EMPTY_HOWTO (91),
1202 EMPTY_HOWTO (92),
1203 EMPTY_HOWTO (93),
1204 EMPTY_HOWTO (94),
1205 EMPTY_HOWTO (95),
1206 EMPTY_HOWTO (96),
1207 EMPTY_HOWTO (97),
1208 EMPTY_HOWTO (98),
1209 EMPTY_HOWTO (99),
1210 EMPTY_HOWTO (100),
1211 EMPTY_HOWTO (101),
1212 EMPTY_HOWTO (102),
1213 EMPTY_HOWTO (103),
1214 EMPTY_HOWTO (104),
1215 EMPTY_HOWTO (105),
1216 EMPTY_HOWTO (106),
1217 EMPTY_HOWTO (107),
1218 EMPTY_HOWTO (108),
1219 EMPTY_HOWTO (109),
1220 EMPTY_HOWTO (110),
1221 EMPTY_HOWTO (111),
1222 EMPTY_HOWTO (112),
1223 EMPTY_HOWTO (113),
1224 EMPTY_HOWTO (114),
1225 EMPTY_HOWTO (115),
1226 EMPTY_HOWTO (116),
1227 EMPTY_HOWTO (117),
1228 EMPTY_HOWTO (118),
1229 EMPTY_HOWTO (119),
1230 EMPTY_HOWTO (120),
1231 EMPTY_HOWTO (121),
1232 EMPTY_HOWTO (122),
1233 EMPTY_HOWTO (123),
1234 EMPTY_HOWTO (124),
1235 EMPTY_HOWTO (125),
1236 EMPTY_HOWTO (126),
1237 EMPTY_HOWTO (127),
1238 EMPTY_HOWTO (128),
1239 EMPTY_HOWTO (129),
1240 EMPTY_HOWTO (130),
1241 EMPTY_HOWTO (131),
1242 EMPTY_HOWTO (132),
1243 EMPTY_HOWTO (133),
1244 EMPTY_HOWTO (134),
1245 EMPTY_HOWTO (135),
1246 EMPTY_HOWTO (136),
1247 EMPTY_HOWTO (137),
1248 EMPTY_HOWTO (138),
1249 EMPTY_HOWTO (139),
1250 EMPTY_HOWTO (140),
1251 EMPTY_HOWTO (141),
1252 EMPTY_HOWTO (142),
1253 EMPTY_HOWTO (143),
1254 EMPTY_HOWTO (144),
1255 EMPTY_HOWTO (145),
1256 EMPTY_HOWTO (146),
1257 EMPTY_HOWTO (147),
1258 EMPTY_HOWTO (148),
1259 EMPTY_HOWTO (149),
1260 EMPTY_HOWTO (150),
1261 EMPTY_HOWTO (151),
1262 EMPTY_HOWTO (152),
1263 EMPTY_HOWTO (153),
1264 EMPTY_HOWTO (154),
1265 EMPTY_HOWTO (155),
1266 EMPTY_HOWTO (156),
1267 EMPTY_HOWTO (157),
1268 EMPTY_HOWTO (158),
1269 EMPTY_HOWTO (159),
1270 EMPTY_HOWTO (160),
1271 EMPTY_HOWTO (161),
1272 EMPTY_HOWTO (162),
1273 EMPTY_HOWTO (163),
1274 EMPTY_HOWTO (164),
1275 EMPTY_HOWTO (165),
1276 EMPTY_HOWTO (166),
1277 EMPTY_HOWTO (167),
1278 EMPTY_HOWTO (168),
1279 EMPTY_HOWTO (169),
1280 EMPTY_HOWTO (170),
1281 EMPTY_HOWTO (171),
1282 EMPTY_HOWTO (172),
1283 EMPTY_HOWTO (173),
1284 EMPTY_HOWTO (174),
1285 EMPTY_HOWTO (175),
1286 EMPTY_HOWTO (176),
1287 EMPTY_HOWTO (177),
1288 EMPTY_HOWTO (178),
1289 EMPTY_HOWTO (179),
1290 EMPTY_HOWTO (180),
1291 EMPTY_HOWTO (181),
1292 EMPTY_HOWTO (182),
1293 EMPTY_HOWTO (183),
1294 EMPTY_HOWTO (184),
1295 EMPTY_HOWTO (185),
1296 EMPTY_HOWTO (186),
1297 EMPTY_HOWTO (187),
1298 EMPTY_HOWTO (188),
1299 EMPTY_HOWTO (189),
1300 EMPTY_HOWTO (190),
1301 EMPTY_HOWTO (191),
1302 EMPTY_HOWTO (192),
1303 EMPTY_HOWTO (193),
1304 EMPTY_HOWTO (194),
1305 EMPTY_HOWTO (195),
1306 EMPTY_HOWTO (196),
1307 EMPTY_HOWTO (197),
1308 EMPTY_HOWTO (198),
1309 EMPTY_HOWTO (199),
1310 EMPTY_HOWTO (200),
1311 EMPTY_HOWTO (201),
1312 EMPTY_HOWTO (202),
1313 EMPTY_HOWTO (203),
1314 EMPTY_HOWTO (204),
1315 EMPTY_HOWTO (205),
1316 EMPTY_HOWTO (206),
1317 EMPTY_HOWTO (207),
1318 EMPTY_HOWTO (208),
1319 EMPTY_HOWTO (209),
1320 EMPTY_HOWTO (210),
1321 EMPTY_HOWTO (211),
1322 EMPTY_HOWTO (212),
1323 EMPTY_HOWTO (213),
1324 EMPTY_HOWTO (214),
1325 EMPTY_HOWTO (215),
1326 EMPTY_HOWTO (216),
1327 EMPTY_HOWTO (217),
1328 EMPTY_HOWTO (218),
1329 EMPTY_HOWTO (219),
1330 EMPTY_HOWTO (220),
1331 EMPTY_HOWTO (221),
1332 EMPTY_HOWTO (222),
1333 EMPTY_HOWTO (223),
1334 EMPTY_HOWTO (224),
1335 EMPTY_HOWTO (225),
1336 EMPTY_HOWTO (226),
1337 EMPTY_HOWTO (227),
1338 EMPTY_HOWTO (228),
1339 EMPTY_HOWTO (229),
1340 EMPTY_HOWTO (230),
1341 EMPTY_HOWTO (231),
1342 EMPTY_HOWTO (232),
1343 EMPTY_HOWTO (233),
1344 EMPTY_HOWTO (234),
1345 EMPTY_HOWTO (235),
1346 EMPTY_HOWTO (236),
1347 EMPTY_HOWTO (237),
1348 EMPTY_HOWTO (238),
1349 EMPTY_HOWTO (239),
1350 EMPTY_HOWTO (240),
1351 EMPTY_HOWTO (241),
1352 EMPTY_HOWTO (242),
1353 EMPTY_HOWTO (243),
1354 EMPTY_HOWTO (244),
1355 EMPTY_HOWTO (245),
1356 EMPTY_HOWTO (246),
1357 EMPTY_HOWTO (247),
1358 EMPTY_HOWTO (248),
1359 EMPTY_HOWTO (249),
1360 EMPTY_HOWTO (250),
1361 EMPTY_HOWTO (251),
1362 EMPTY_HOWTO (252),
1363 HOWTO (R_C6000_ALIGN, /* type */
1364 0, /* rightshift */
1365 0, /* size (0 = byte, 1 = short, 2 = long) */
1366 0, /* bitsize */
1367 FALSE, /* pc_relative */
1368 0, /* bitpos */
1369 complain_overflow_dont,/* complain_on_overflow */
1370 bfd_elf_generic_reloc, /* special_function */
1371 "R_C6000_ALIGN", /* name */
1372 TRUE, /* partial_inplace */
1373 0, /* src_mask */
1374 0, /* dst_mask */
1375 FALSE), /* pcrel_offset */
1376 HOWTO (R_C6000_FPHEAD, /* type */
1377 0, /* rightshift */
1378 0, /* size (0 = byte, 1 = short, 2 = long) */
1379 0, /* bitsize */
1380 FALSE, /* pc_relative */
1381 0, /* bitpos */
1382 complain_overflow_dont,/* complain_on_overflow */
1383 bfd_elf_generic_reloc, /* special_function */
1384 "R_C6000_FPHEAD", /* name */
1385 TRUE, /* partial_inplace */
1386 0, /* src_mask */
1387 0, /* dst_mask */
1388 FALSE), /* pcrel_offset */
1389 HOWTO (R_C6000_NOCMP, /* type */
1390 0, /* rightshift */
1391 0, /* size (0 = byte, 1 = short, 2 = long) */
1392 0, /* bitsize */
1393 FALSE, /* pc_relative */
1394 0, /* bitpos */
1395 complain_overflow_dont,/* complain_on_overflow */
1396 bfd_elf_generic_reloc, /* special_function */
1397 "R_C6000_NOCMP", /* name */
1398 TRUE, /* partial_inplace */
1399 0, /* src_mask */
1400 0, /* dst_mask */
1401 FALSE) /* pcrel_offset */
1402 };
1403
1404 /* Map BFD relocations to ELF relocations. */
1405
1406 typedef struct
1407 {
1408 bfd_reloc_code_real_type bfd_reloc_val;
1409 enum elf_tic6x_reloc_type elf_reloc_val;
1410 } tic6x_reloc_map;
1411
1412 static const tic6x_reloc_map elf32_tic6x_reloc_map[] =
1413 {
1414 { BFD_RELOC_NONE, R_C6000_NONE },
1415 { BFD_RELOC_32, R_C6000_ABS32 },
1416 { BFD_RELOC_16, R_C6000_ABS16 },
1417 { BFD_RELOC_8, R_C6000_ABS8 },
1418 { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 },
1419 { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 },
1420 { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 },
1421 { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 },
1422 { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 },
1423 { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 },
1424 { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 },
1425 { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B },
1426 { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H },
1427 { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W },
1428 { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 },
1429 { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B },
1430 { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H },
1431 { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W },
1432 { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B },
1433 { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H },
1434 { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W },
1435 { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W },
1436 { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W },
1437 { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W },
1438 { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX },
1439 { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 },
1440 { BFD_RELOC_C6000_COPY, R_C6000_COPY },
1441 { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT },
1442 { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE },
1443 { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 },
1444 { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 },
1445 { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN },
1446 { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD },
1447 { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP }
1448 };
1449
1450 static reloc_howto_type *
1451 elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
1452 {
1453 unsigned int i;
1454
1455 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++)
1456 if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code)
1457 {
1458 enum elf_tic6x_reloc_type elf_reloc_val;
1459 reloc_howto_type *howto;
1460
1461 elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val;
1462 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1463 howto = &elf32_tic6x_howto_table[elf_reloc_val];
1464 else
1465 howto = &elf32_tic6x_howto_table_rel[elf_reloc_val];
1466
1467 /* Some relocations are RELA-only; do not return them for
1468 REL. */
1469 if (howto->name == NULL)
1470 howto = NULL;
1471
1472 return howto;
1473 }
1474
1475 return NULL;
1476 }
1477
1478 static reloc_howto_type *
1479 elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name)
1480 {
1481 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1482 {
1483 unsigned int i;
1484
1485 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++)
1486 if (elf32_tic6x_howto_table[i].name != NULL
1487 && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0)
1488 return &elf32_tic6x_howto_table[i];
1489 }
1490 else
1491 {
1492 unsigned int i;
1493
1494 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++)
1495 if (elf32_tic6x_howto_table_rel[i].name != NULL
1496 && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0)
1497 return &elf32_tic6x_howto_table_rel[i];
1498 }
1499
1500 return NULL;
1501 }
1502
1503 static void
1504 elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1505 Elf_Internal_Rela *elf_reloc)
1506 {
1507 unsigned int r_type;
1508
1509 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1510 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table))
1511 bfd_reloc->howto = NULL;
1512 else
1513 bfd_reloc->howto = &elf32_tic6x_howto_table[r_type];
1514 }
1515
1516 static void
1517 elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1518 Elf_Internal_Rela *elf_reloc)
1519 {
1520 unsigned int r_type;
1521
1522 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1523 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel))
1524 bfd_reloc->howto = NULL;
1525 else
1526 bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type];
1527 }
1528
1529 void
1530 elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p)
1531 {
1532 elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p;
1533 }
1534
1535 /* Create an entry in a C6X ELF linker hash table. */
1536
1537 static struct bfd_hash_entry *
1538 elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry,
1539 struct bfd_hash_table *table,
1540 const char *string)
1541 {
1542 /* Allocate the structure if it has not already been allocated by a
1543 subclass. */
1544 if (entry == NULL)
1545 {
1546 entry = bfd_hash_allocate (table,
1547 sizeof (struct elf32_tic6x_link_hash_entry));
1548 if (entry == NULL)
1549 return entry;
1550 }
1551
1552 /* Call the allocation method of the superclass. */
1553 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1554 if (entry != NULL)
1555 {
1556 struct elf32_tic6x_link_hash_entry *eh;
1557
1558 eh = (struct elf32_tic6x_link_hash_entry *) entry;
1559 eh->dyn_relocs = NULL;
1560 }
1561
1562 return entry;
1563 }
1564
1565 /* Create a C6X ELF linker hash table. */
1566
1567 static struct bfd_link_hash_table *
1568 elf32_tic6x_link_hash_table_create (bfd *abfd)
1569 {
1570 struct elf32_tic6x_link_hash_table *ret;
1571 bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table);
1572
1573 ret = bfd_zmalloc (amt);
1574 if (ret == NULL)
1575 return NULL;
1576
1577 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1578 elf32_tic6x_link_hash_newfunc,
1579 sizeof (struct elf32_tic6x_link_hash_entry),
1580 TIC6X_ELF_DATA))
1581 {
1582 free (ret);
1583 return NULL;
1584 }
1585
1586 ret->obfd = abfd;
1587 ret->elf.is_relocatable_executable = 1;
1588
1589 return &ret->elf.root;
1590 }
1591
1592 static bfd_boolean
1593 elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info)
1594 {
1595 if (info->shared)
1596 {
1597 obj_attribute *out_attr;
1598 out_attr = elf_known_obj_attributes_proc (abfd);
1599 if (out_attr[Tag_ABI_PIC].i == 0)
1600 {
1601 _bfd_error_handler (_("warning: generating a shared library "
1602 "containing non-PIC code"));
1603 }
1604 if (out_attr[Tag_ABI_PID].i == 0)
1605 {
1606 _bfd_error_handler (_("warning: generating a shared library "
1607 "containing non-PID code"));
1608 }
1609 }
1610 /* Invoke the regular ELF backend linker to do all the work. */
1611 if (!bfd_elf_final_link (abfd, info))
1612 return FALSE;
1613
1614 return TRUE;
1615 }
1616
1617 /* Called to pass PARAMS to the backend. We store them in the hash table
1618 associated with INFO. */
1619
1620 void
1621 elf32_tic6x_setup (struct bfd_link_info *info,
1622 struct elf32_tic6x_params *params)
1623 {
1624 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info);
1625 htab->params = *params;
1626 }
1627
1628 /* Determine if we're dealing with a DSBT object. */
1629
1630 static bfd_boolean
1631 elf32_tic6x_using_dsbt (bfd *abfd)
1632 {
1633 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC,
1634 Tag_ABI_DSBT);
1635 }
1636
1637 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
1638 sections in DYNOBJ, and set up shortcuts to them in our hash
1639 table. */
1640
1641 static bfd_boolean
1642 elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
1643 {
1644 struct elf32_tic6x_link_hash_table *htab;
1645 flagword flags;
1646
1647 htab = elf32_tic6x_hash_table (info);
1648 if (htab == NULL)
1649 return FALSE;
1650
1651 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1652 return FALSE;
1653
1654 /* Create .dsbt */
1655 flags = (SEC_ALLOC | SEC_LOAD
1656 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1657 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt",
1658 flags);
1659 if (htab->dsbt == NULL
1660 || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2)
1661 || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5))
1662 return FALSE;
1663
1664 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
1665 if (!info->shared)
1666 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
1667
1668 if (!htab->sdynbss
1669 || (!info->shared && !htab->srelbss))
1670 abort ();
1671
1672 return TRUE;
1673 }
1674
1675 static bfd_boolean
1676 elf32_tic6x_mkobject (bfd *abfd)
1677 {
1678 bfd_boolean ret;
1679
1680 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
1681 TIC6X_ELF_DATA);
1682 if (ret)
1683 elf32_tic6x_set_use_rela_p (abfd, TRUE);
1684 return ret;
1685 }
1686
1687 /* Install relocation RELA into section SRELA, incrementing its
1688 reloc_count. */
1689
1690 static void
1691 elf32_tic6x_install_rela (bfd *output_bfd, asection *srela,
1692 Elf_Internal_Rela *rela)
1693 {
1694 bfd_byte *loc;
1695 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela);
1696 loc = srela->contents + off;
1697 BFD_ASSERT (off < srela->size);
1698 bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
1699 }
1700
1701 /* Create a dynamic reloc against the GOT at offset OFFSET. The contents
1702 of the GOT at this offset have been initialized with the relocation. */
1703
1704 static void
1705 elf32_tic6x_make_got_dynreloc (bfd *output_bfd,
1706 struct elf32_tic6x_link_hash_table *htab,
1707 asection *sym_sec, bfd_vma offset)
1708 {
1709 asection *sgot = htab->elf.sgot;
1710 Elf_Internal_Rela outrel;
1711 int dynindx;
1712
1713 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset;
1714 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
1715 if (sym_sec && sym_sec->output_section
1716 && ! bfd_is_abs_section (sym_sec->output_section)
1717 && ! bfd_is_und_section (sym_sec->output_section))
1718 {
1719 dynindx = elf_section_data (sym_sec->output_section)->dynindx;
1720 outrel.r_addend -= sym_sec->output_section->vma;
1721 }
1722 else
1723 {
1724 dynindx = 0;
1725 }
1726 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32);
1727 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel);
1728 }
1729
1730 /* Finish up dynamic symbol handling. We set the contents of various
1731 dynamic sections here. */
1732
1733 static bfd_boolean
1734 elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd,
1735 struct bfd_link_info *info,
1736 struct elf_link_hash_entry *h,
1737 Elf_Internal_Sym * sym)
1738 {
1739 bfd *dynobj;
1740 struct elf32_tic6x_link_hash_table *htab;
1741
1742 htab = elf32_tic6x_hash_table (info);
1743 dynobj = htab->elf.dynobj;
1744
1745 if (h->plt.offset != (bfd_vma) -1)
1746 {
1747 bfd_vma plt_index;
1748 bfd_vma got_section_offset, got_dp_offset, rela_offset;
1749 Elf_Internal_Rela rela;
1750 bfd_byte *loc;
1751 asection *plt, *gotplt, *relplt;
1752 const struct elf_backend_data *bed;
1753
1754 bed = get_elf_backend_data (output_bfd);
1755
1756 BFD_ASSERT (htab->elf.splt != NULL);
1757 plt = htab->elf.splt;
1758 gotplt = htab->elf.sgotplt;
1759 relplt = htab->elf.srelplt;
1760
1761 /* This symbol has an entry in the procedure linkage table. Set
1762 it up. */
1763
1764 if ((h->dynindx == -1
1765 && !((h->forced_local || info->executable)
1766 && h->def_regular
1767 && h->type == STT_GNU_IFUNC))
1768 || plt == NULL
1769 || gotplt == NULL
1770 || relplt == NULL)
1771 abort ();
1772
1773 /* Get the index in the procedure linkage table which
1774 corresponds to this symbol. This is the index of this symbol
1775 in all the symbols for which we are making plt entries. The
1776 first entry in the procedure linkage table is reserved.
1777
1778 Get the offset into the .got table of the entry that
1779 corresponds to this function. Each .got entry is 4 bytes.
1780 The first three are reserved.
1781
1782 For static executables, we don't reserve anything. */
1783
1784 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1785 got_section_offset = plt_index + bed->got_header_size / 4;
1786 got_dp_offset = got_section_offset + htab->params.dsbt_size;
1787 rela_offset = plt_index * sizeof (Elf32_External_Rela);
1788
1789 got_section_offset *= 4;
1790
1791 /* Fill in the entry in the procedure linkage table. */
1792
1793 /* ldw .d2t2 *+B14($GOT(f)), b2 */
1794 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e,
1795 plt->contents + h->plt.offset);
1796 /* mvk .s2 low(rela_offset), b0 */
1797 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a,
1798 plt->contents + h->plt.offset + 4);
1799 /* mvkh .s2 high(rela_offset), b0 */
1800 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a,
1801 plt->contents + h->plt.offset + 8);
1802 /* nop 2 */
1803 bfd_put_32 (output_bfd, 0x00002000,
1804 plt->contents + h->plt.offset + 12);
1805 /* b .s2 b2 */
1806 bfd_put_32 (output_bfd, 0x00080362,
1807 plt->contents + h->plt.offset + 16);
1808 /* nop 5 */
1809 bfd_put_32 (output_bfd, 0x00008000,
1810 plt->contents + h->plt.offset + 20);
1811
1812 /* Fill in the entry in the global offset table. */
1813 bfd_put_32 (output_bfd,
1814 (plt->output_section->vma + plt->output_offset),
1815 gotplt->contents + got_section_offset);
1816
1817 /* Fill in the entry in the .rel.plt section. */
1818 rela.r_offset = (gotplt->output_section->vma
1819 + gotplt->output_offset
1820 + got_section_offset);
1821 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT);
1822 rela.r_addend = 0;
1823 loc = relplt->contents + rela_offset;
1824 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1825
1826 if (!h->def_regular)
1827 {
1828 /* Mark the symbol as undefined, rather than as defined in
1829 the .plt section. */
1830 sym->st_shndx = SHN_UNDEF;
1831 sym->st_value = 0;
1832 }
1833 }
1834
1835 if (h->got.offset != (bfd_vma) -1)
1836 {
1837 asection *sgot;
1838 asection *srela;
1839
1840 /* This symbol has an entry in the global offset table.
1841 Set it up. */
1842
1843 sgot = bfd_get_linker_section (dynobj, ".got");
1844 srela = bfd_get_linker_section (dynobj, ".rela.got");
1845 BFD_ASSERT (sgot != NULL && srela != NULL);
1846
1847 /* If this is a -Bsymbolic link, and the symbol is defined
1848 locally, we just want to emit a RELATIVE reloc. Likewise if
1849 the symbol was forced to be local because of a version file.
1850 The entry in the global offset table will already have been
1851 initialized in the relocate_section function. */
1852 if (info->shared
1853 && (info->symbolic
1854 || h->dynindx == -1 || h->forced_local) && h->def_regular)
1855 {
1856 asection *s = h->root.u.def.section;
1857 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s,
1858 h->got.offset & ~(bfd_vma) 1);
1859 }
1860 else
1861 {
1862 Elf_Internal_Rela outrel;
1863 bfd_put_32 (output_bfd, (bfd_vma) 0,
1864 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
1865 outrel.r_offset = (sgot->output_section->vma
1866 + sgot->output_offset
1867 + (h->got.offset & ~(bfd_vma) 1));
1868 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32);
1869 outrel.r_addend = 0;
1870
1871 elf32_tic6x_install_rela (output_bfd, srela, &outrel);
1872 }
1873 }
1874
1875 if (h->needs_copy)
1876 {
1877 Elf_Internal_Rela rel;
1878
1879 /* This symbol needs a copy reloc. Set it up. */
1880
1881 if (h->dynindx == -1
1882 || (h->root.type != bfd_link_hash_defined
1883 && h->root.type != bfd_link_hash_defweak)
1884 || htab->srelbss == NULL)
1885 abort ();
1886
1887 rel.r_offset = (h->root.u.def.value
1888 + h->root.u.def.section->output_section->vma
1889 + h->root.u.def.section->output_offset);
1890 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY);
1891 rel.r_addend = 0;
1892
1893 elf32_tic6x_install_rela (output_bfd, htab->srelbss, &rel);
1894 }
1895
1896 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1897 if (h == elf_hash_table (info)->hdynamic
1898 || h == elf_hash_table (info)->hgot)
1899 sym->st_shndx = SHN_ABS;
1900
1901 return TRUE;
1902 }
1903
1904 /* Unwinding tables are not referenced directly. This pass marks them as
1905 required if the corresponding code section is marked. */
1906
1907 static bfd_boolean
1908 elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info,
1909 elf_gc_mark_hook_fn gc_mark_hook)
1910 {
1911 bfd *sub;
1912 Elf_Internal_Shdr **elf_shdrp;
1913 bfd_boolean again;
1914
1915 _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook);
1916
1917 /* Marking EH data may cause additional code sections to be marked,
1918 requiring multiple passes. */
1919 again = TRUE;
1920 while (again)
1921 {
1922 again = FALSE;
1923 for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
1924 {
1925 asection *o;
1926
1927 if (! is_tic6x_elf (sub))
1928 continue;
1929
1930 elf_shdrp = elf_elfsections (sub);
1931 for (o = sub->sections; o != NULL; o = o->next)
1932 {
1933 Elf_Internal_Shdr *hdr;
1934
1935 hdr = &elf_section_data (o)->this_hdr;
1936 if (hdr->sh_type == SHT_C6000_UNWIND
1937 && hdr->sh_link
1938 && hdr->sh_link < elf_numsections (sub)
1939 && !o->gc_mark
1940 && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark)
1941 {
1942 again = TRUE;
1943 if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
1944 return FALSE;
1945 }
1946 }
1947 }
1948 }
1949
1950 return TRUE;
1951 }
1952
1953 /* Return TRUE if this is an unwinding table index. */
1954
1955 static bfd_boolean
1956 is_tic6x_elf_unwind_section_name (const char *name)
1957 {
1958 return (CONST_STRNEQ (name, ELF_STRING_C6000_unwind)
1959 || CONST_STRNEQ (name, ELF_STRING_C6000_unwind_once));
1960 }
1961
1962
1963 /* Set the type and flags for an unwinding index table. We do this by
1964 the section name, which is a hack, but ought to work. */
1965
1966 static bfd_boolean
1967 elf32_tic6x_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1968 Elf_Internal_Shdr *hdr, asection *sec)
1969 {
1970 const char * name;
1971
1972 name = bfd_get_section_name (abfd, sec);
1973
1974 if (is_tic6x_elf_unwind_section_name (name))
1975 {
1976 hdr->sh_type = SHT_C6000_UNWIND;
1977 hdr->sh_flags |= SHF_LINK_ORDER;
1978 }
1979
1980 return TRUE;
1981 }
1982
1983 /* Update the got entry reference counts for the section being removed. */
1984
1985 static bfd_boolean
1986 elf32_tic6x_gc_sweep_hook (bfd *abfd,
1987 struct bfd_link_info *info,
1988 asection *sec,
1989 const Elf_Internal_Rela *relocs)
1990 {
1991 struct elf32_tic6x_link_hash_table *htab;
1992 Elf_Internal_Shdr *symtab_hdr;
1993 struct elf_link_hash_entry **sym_hashes;
1994 bfd_signed_vma *local_got_refcounts;
1995 const Elf_Internal_Rela *rel, *relend;
1996
1997 if (info->relocatable)
1998 return TRUE;
1999
2000 htab = elf32_tic6x_hash_table (info);
2001 if (htab == NULL)
2002 return FALSE;
2003
2004 elf_section_data (sec)->local_dynrel = NULL;
2005
2006 symtab_hdr = &elf_symtab_hdr (abfd);
2007 sym_hashes = elf_sym_hashes (abfd);
2008 local_got_refcounts = elf_local_got_refcounts (abfd);
2009
2010 relend = relocs + sec->reloc_count;
2011 for (rel = relocs; rel < relend; rel++)
2012 {
2013 unsigned long r_symndx;
2014 unsigned int r_type;
2015 struct elf_link_hash_entry *h = NULL;
2016
2017 r_symndx = ELF32_R_SYM (rel->r_info);
2018 if (r_symndx >= symtab_hdr->sh_info)
2019 {
2020 struct elf32_tic6x_link_hash_entry *eh;
2021 struct elf_dyn_relocs **pp;
2022 struct elf_dyn_relocs *p;
2023
2024 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2025 while (h->root.type == bfd_link_hash_indirect
2026 || h->root.type == bfd_link_hash_warning)
2027 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2028 eh = (struct elf32_tic6x_link_hash_entry *) h;
2029
2030 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2031 if (p->sec == sec)
2032 {
2033 /* Everything must go for SEC. */
2034 *pp = p->next;
2035 break;
2036 }
2037 }
2038
2039 r_type = ELF32_R_TYPE (rel->r_info);
2040
2041 switch (r_type)
2042 {
2043 case R_C6000_SBR_GOT_U15_W:
2044 case R_C6000_SBR_GOT_L16_W:
2045 case R_C6000_SBR_GOT_H16_W:
2046 case R_C6000_EHTYPE:
2047 if (h != NULL)
2048 {
2049 if (h->got.refcount > 0)
2050 h->got.refcount -= 1;
2051 }
2052 else if (local_got_refcounts != NULL)
2053 {
2054 if (local_got_refcounts[r_symndx] > 0)
2055 local_got_refcounts[r_symndx] -= 1;
2056 }
2057 break;
2058
2059 default:
2060 break;
2061 }
2062 }
2063
2064 return TRUE;
2065 }
2066
2067 /* Adjust a symbol defined by a dynamic object and referenced by a
2068 regular object. The current definition is in some section of the
2069 dynamic object, but we're not including those sections. We have to
2070 change the definition to something the rest of the link can
2071 understand. */
2072
2073 static bfd_boolean
2074 elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info,
2075 struct elf_link_hash_entry *h)
2076 {
2077 struct elf32_tic6x_link_hash_table *htab;
2078 bfd *dynobj;
2079 asection *s;
2080
2081 dynobj = elf_hash_table (info)->dynobj;
2082
2083 /* Make sure we know what is going on here. */
2084 BFD_ASSERT (dynobj != NULL
2085 && (h->needs_plt
2086 || h->u.weakdef != NULL
2087 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
2088
2089 /* If this is a function, put it in the procedure linkage table. We
2090 will fill in the contents of the procedure linkage table later,
2091 when we know the address of the .got section. */
2092 if (h->type == STT_FUNC
2093 || h->needs_plt)
2094 {
2095 if (h->plt.refcount <= 0
2096 || SYMBOL_CALLS_LOCAL (info, h)
2097 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2098 && h->root.type == bfd_link_hash_undefweak))
2099 {
2100 /* This case can occur if we saw a PLT32 reloc in an input
2101 file, but the symbol was never referred to by a dynamic
2102 object, or if all references were garbage collected. In
2103 such a case, we don't actually need to build a procedure
2104 linkage table, and we can just do a PC32 reloc instead. */
2105 h->plt.offset = (bfd_vma) -1;
2106 h->needs_plt = 0;
2107 }
2108
2109 return TRUE;
2110 }
2111
2112 /* If this is a weak symbol, and there is a real definition, the
2113 processor independent code will have arranged for us to see the
2114 real definition first, and we can just use the same value. */
2115 if (h->u.weakdef != NULL)
2116 {
2117 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2118 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2119 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2120 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2121 h->non_got_ref = h->u.weakdef->non_got_ref;
2122 return TRUE;
2123 }
2124
2125 /* This is a reference to a symbol defined by a dynamic object which
2126 is not a function. */
2127
2128 /* If we are creating a shared library, we must presume that the
2129 only references to the symbol are via the global offset table.
2130 For such cases we need not do anything here; the relocations will
2131 be handled correctly by relocate_section. */
2132 if (info->shared)
2133 return TRUE;
2134
2135 /* If there are no references to this symbol that do not use the
2136 GOT, we don't need to generate a copy reloc. */
2137 if (!h->non_got_ref)
2138 return TRUE;
2139
2140 /* If -z nocopyreloc was given, we won't generate them either. */
2141 if (info->nocopyreloc)
2142 {
2143 h->non_got_ref = 0;
2144 return TRUE;
2145 }
2146
2147 htab = elf32_tic6x_hash_table (info);
2148 if (htab == NULL)
2149 return FALSE;
2150
2151 /* We must allocate the symbol in our .dynbss section, which will
2152 become part of the .bss section of the executable. There will be
2153 an entry for this symbol in the .dynsym section. The dynamic
2154 object will contain position independent code, so all references
2155 from the dynamic object to this symbol will go through the global
2156 offset table. The dynamic linker will use the .dynsym entry to
2157 determine the address it must put in the global offset table, so
2158 both the dynamic object and the regular object will refer to the
2159 same memory location for the variable. */
2160
2161 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2162 copy the initial value out of the dynamic object and into the
2163 runtime process image. */
2164 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2165 {
2166 htab->srelbss->size += sizeof (Elf32_External_Rela);
2167 h->needs_copy = 1;
2168 }
2169
2170 s = htab->sdynbss;
2171
2172 return _bfd_elf_adjust_dynamic_copy (h, s);
2173 }
2174
2175 static bfd_boolean
2176 elf32_tic6x_new_section_hook (bfd *abfd, asection *sec)
2177 {
2178 bfd_boolean ret;
2179
2180 /* Allocate target specific section data. */
2181 if (!sec->used_by_bfd)
2182 {
2183 _tic6x_elf_section_data *sdata;
2184 bfd_size_type amt = sizeof (*sdata);
2185
2186 sdata = (_tic6x_elf_section_data *) bfd_zalloc (abfd, amt);
2187 if (sdata == NULL)
2188 return FALSE;
2189 sec->used_by_bfd = sdata;
2190 }
2191
2192 ret = _bfd_elf_new_section_hook (abfd, sec);
2193 sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p;
2194
2195 return ret;
2196 }
2197
2198 /* Return true if relocation REL against section SEC is a REL rather
2199 than RELA relocation. RELOCS is the first relocation in the
2200 section and ABFD is the bfd that contains SEC. */
2201
2202 static bfd_boolean
2203 elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec,
2204 const Elf_Internal_Rela *relocs,
2205 const Elf_Internal_Rela *rel)
2206 {
2207 Elf_Internal_Shdr *rel_hdr;
2208 const struct elf_backend_data *bed;
2209
2210 /* To determine which flavor of relocation this is, we depend on the
2211 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
2212 rel_hdr = elf_section_data (sec)->rel.hdr;
2213 if (rel_hdr == NULL)
2214 return FALSE;
2215 bed = get_elf_backend_data (abfd);
2216 return ((size_t) (rel - relocs)
2217 < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel);
2218 }
2219
2220 /* We need dynamic symbols for every section, since segments can
2221 relocate independently. */
2222 static bfd_boolean
2223 elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2224 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2225 asection *p)
2226 {
2227 switch (elf_section_data (p)->this_hdr.sh_type)
2228 {
2229 case SHT_PROGBITS:
2230 case SHT_NOBITS:
2231 /* If sh_type is yet undecided, assume it could be
2232 SHT_PROGBITS/SHT_NOBITS. */
2233 case SHT_NULL:
2234 return FALSE;
2235
2236 /* There shouldn't be section relative relocations
2237 against any other section. */
2238 default:
2239 return TRUE;
2240 }
2241 }
2242
2243 static bfd_boolean
2244 elf32_tic6x_relocate_section (bfd *output_bfd,
2245 struct bfd_link_info *info,
2246 bfd *input_bfd,
2247 asection *input_section,
2248 bfd_byte *contents,
2249 Elf_Internal_Rela *relocs,
2250 Elf_Internal_Sym *local_syms,
2251 asection **local_sections)
2252 {
2253 struct elf32_tic6x_link_hash_table *htab;
2254 Elf_Internal_Shdr *symtab_hdr;
2255 struct elf_link_hash_entry **sym_hashes;
2256 bfd_vma *local_got_offsets;
2257 Elf_Internal_Rela *rel;
2258 Elf_Internal_Rela *relend;
2259 bfd_boolean ok = TRUE;
2260
2261 htab = elf32_tic6x_hash_table (info);
2262 symtab_hdr = & elf_symtab_hdr (input_bfd);
2263 sym_hashes = elf_sym_hashes (input_bfd);
2264 local_got_offsets = elf_local_got_offsets (input_bfd);
2265
2266 relend = relocs + input_section->reloc_count;
2267
2268 for (rel = relocs; rel < relend; rel ++)
2269 {
2270 int r_type;
2271 unsigned long r_symndx;
2272 arelent bfd_reloc;
2273 reloc_howto_type *howto;
2274 Elf_Internal_Sym *sym;
2275 asection *sec;
2276 struct elf_link_hash_entry *h;
2277 bfd_vma off, off2, relocation;
2278 bfd_boolean unresolved_reloc;
2279 bfd_reloc_status_type r;
2280 struct bfd_link_hash_entry *sbh;
2281 bfd_boolean is_rel;
2282
2283 r_type = ELF32_R_TYPE (rel->r_info);
2284 r_symndx = ELF32_R_SYM (rel->r_info);
2285
2286 is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section,
2287 relocs, rel);
2288
2289 if (is_rel)
2290 elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel);
2291 else
2292 elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel);
2293 howto = bfd_reloc.howto;
2294 if (howto == NULL)
2295 {
2296 bfd_set_error (bfd_error_bad_value);
2297 return FALSE;
2298 }
2299
2300 h = NULL;
2301 sym = NULL;
2302 sec = NULL;
2303 unresolved_reloc = FALSE;
2304
2305 if (r_symndx < symtab_hdr->sh_info)
2306 {
2307 sym = local_syms + r_symndx;
2308 sec = local_sections[r_symndx];
2309 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2310 }
2311 else
2312 {
2313 bfd_boolean warned;
2314
2315 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2316 r_symndx, symtab_hdr, sym_hashes,
2317 h, sec, relocation,
2318 unresolved_reloc, warned);
2319 }
2320
2321 if (sec != NULL && discarded_section (sec))
2322 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2323 rel, 1, relend, howto, 0, contents);
2324
2325 if (info->relocatable)
2326 {
2327 if (is_rel
2328 && sym != NULL
2329 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2330 {
2331 rel->r_addend = 0;
2332 relocation = sec->output_offset + sym->st_value;
2333 r = _bfd_relocate_contents (howto, input_bfd, relocation,
2334 contents + rel->r_offset);
2335 goto done_reloc;
2336 }
2337 continue;
2338 }
2339
2340 switch (r_type)
2341 {
2342 case R_C6000_NONE:
2343 case R_C6000_ALIGN:
2344 case R_C6000_FPHEAD:
2345 case R_C6000_NOCMP:
2346 /* No action needed. */
2347 continue;
2348
2349 case R_C6000_PCR_S21:
2350 /* A branch to an undefined weak symbol is turned into a
2351 "b .s2 B3" instruction if the existing insn is of the
2352 form "b .s2 symbol". */
2353 if (h ? h->root.type == bfd_link_hash_undefweak
2354 && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1)
2355 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2356 {
2357 unsigned long oldval;
2358 oldval = bfd_get_32 (input_bfd, contents + rel->r_offset);
2359
2360 if ((oldval & 0x7e) == 0x12)
2361 {
2362 oldval &= 0xF0000001;
2363 bfd_put_32 (input_bfd, oldval | 0x000c0362,
2364 contents + rel->r_offset);
2365 r = bfd_reloc_ok;
2366 goto done_reloc;
2367 }
2368 }
2369
2370 case R_C6000_PCR_S12:
2371 case R_C6000_PCR_S10:
2372 case R_C6000_PCR_S7:
2373 if (h != NULL
2374 && h->plt.offset != (bfd_vma) -1
2375 && htab->elf.splt != NULL)
2376 {
2377 relocation = (htab->elf.splt->output_section->vma
2378 + htab->elf.splt->output_offset
2379 + h->plt.offset);
2380 }
2381
2382 /* Generic PC-relative handling produces a value relative to
2383 the exact location of the relocation. Adjust it to be
2384 relative to the start of the fetch packet instead. */
2385 relocation += (input_section->output_section->vma
2386 + input_section->output_offset
2387 + rel->r_offset) & 0x1f;
2388 unresolved_reloc = FALSE;
2389 break;
2390
2391 case R_C6000_PCR_H16:
2392 case R_C6000_PCR_L16:
2393 off = (input_section->output_section->vma
2394 + input_section->output_offset
2395 + rel->r_offset);
2396 /* These must be calculated as R = S - FP(FP(PC) - A).
2397 PC, here, is the value we just computed in OFF. RELOCATION
2398 has the address of S + A. */
2399 relocation -= rel->r_addend;
2400 off2 = ((off & ~(bfd_vma)0x1f) - rel->r_addend) & (bfd_vma)~0x1f;
2401 off2 = relocation - off2;
2402 relocation = off + off2;
2403 break;
2404
2405 case R_C6000_DSBT_INDEX:
2406 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index;
2407 if (!info->shared || relocation != 0)
2408 break;
2409
2410 /* fall through */
2411 case R_C6000_ABS32:
2412 case R_C6000_ABS16:
2413 case R_C6000_ABS8:
2414 case R_C6000_ABS_S16:
2415 case R_C6000_ABS_L16:
2416 case R_C6000_ABS_H16:
2417 /* When generating a shared object or relocatable executable, these
2418 relocations are copied into the output file to be resolved at
2419 run time. */
2420 if ((info->shared || elf32_tic6x_using_dsbt (output_bfd))
2421 && (input_section->flags & SEC_ALLOC)
2422 && (h == NULL
2423 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2424 || h->root.type != bfd_link_hash_undefweak))
2425 {
2426 Elf_Internal_Rela outrel;
2427 bfd_boolean skip, relocate;
2428 asection *sreloc;
2429
2430 unresolved_reloc = FALSE;
2431
2432 sreloc = elf_section_data (input_section)->sreloc;
2433 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
2434
2435 skip = FALSE;
2436 relocate = FALSE;
2437
2438 outrel.r_offset =
2439 _bfd_elf_section_offset (output_bfd, info, input_section,
2440 rel->r_offset);
2441 if (outrel.r_offset == (bfd_vma) -1)
2442 skip = TRUE;
2443 else if (outrel.r_offset == (bfd_vma) -2)
2444 skip = TRUE, relocate = TRUE;
2445 outrel.r_offset += (input_section->output_section->vma
2446 + input_section->output_offset);
2447
2448 if (skip)
2449 memset (&outrel, 0, sizeof outrel);
2450 else if (h != NULL
2451 && h->dynindx != -1
2452 && (!info->shared
2453 || !info->symbolic
2454 || !h->def_regular))
2455 {
2456 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2457 outrel.r_addend = rel->r_addend;
2458 }
2459 else
2460 {
2461 long indx;
2462
2463 outrel.r_addend = relocation + rel->r_addend;
2464
2465 if (bfd_is_abs_section (sec))
2466 indx = 0;
2467 else if (sec == NULL || sec->owner == NULL)
2468 {
2469 bfd_set_error (bfd_error_bad_value);
2470 return FALSE;
2471 }
2472 else
2473 {
2474 asection *osec;
2475
2476 osec = sec->output_section;
2477 indx = elf_section_data (osec)->dynindx;
2478 outrel.r_addend -= osec->vma;
2479 BFD_ASSERT (indx != 0);
2480 }
2481
2482 outrel.r_info = ELF32_R_INFO (indx, r_type);
2483 }
2484
2485 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel);
2486
2487 /* If this reloc is against an external symbol, we do not want to
2488 fiddle with the addend. Otherwise, we need to include the symbol
2489 value so that it becomes an addend for the dynamic reloc. */
2490 if (! relocate)
2491 continue;
2492 }
2493
2494 /* Generic logic OK. */
2495 break;
2496
2497 case R_C6000_SBR_U15_B:
2498 case R_C6000_SBR_U15_H:
2499 case R_C6000_SBR_U15_W:
2500 case R_C6000_SBR_S16:
2501 case R_C6000_SBR_L16_B:
2502 case R_C6000_SBR_L16_H:
2503 case R_C6000_SBR_L16_W:
2504 case R_C6000_SBR_H16_B:
2505 case R_C6000_SBR_H16_H:
2506 case R_C6000_SBR_H16_W:
2507 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
2508 FALSE, FALSE, TRUE);
2509 if (sbh != NULL
2510 && (sbh->type == bfd_link_hash_defined
2511 || sbh->type == bfd_link_hash_defweak))
2512 {
2513 if (h ? (h->root.type == bfd_link_hash_undefweak
2514 && (htab->elf.splt == NULL
2515 || h->plt.offset == (bfd_vma) -1))
2516 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2517 relocation = 0;
2518 else
2519 relocation -= (sbh->u.def.value
2520 + sbh->u.def.section->output_section->vma
2521 + sbh->u.def.section->output_offset);
2522 }
2523 else
2524 {
2525 (*_bfd_error_handler) (_("%B: SB-relative relocation but "
2526 "__c6xabi_DSBT_BASE not defined"),
2527 input_bfd);
2528 ok = FALSE;
2529 continue;
2530 }
2531 break;
2532
2533 case R_C6000_SBR_GOT_U15_W:
2534 case R_C6000_SBR_GOT_L16_W:
2535 case R_C6000_SBR_GOT_H16_W:
2536 case R_C6000_EHTYPE:
2537 /* Relocation is to the entry for this symbol in the global
2538 offset table. */
2539 if (htab->elf.sgot == NULL)
2540 abort ();
2541
2542 if (h != NULL)
2543 {
2544 bfd_boolean dyn;
2545
2546 off = h->got.offset;
2547 dyn = htab->elf.dynamic_sections_created;
2548 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2549 || (info->shared
2550 && SYMBOL_REFERENCES_LOCAL (info, h))
2551 || (ELF_ST_VISIBILITY (h->other)
2552 && h->root.type == bfd_link_hash_undefweak))
2553 {
2554 /* This is actually a static link, or it is a
2555 -Bsymbolic link and the symbol is defined
2556 locally, or the symbol was forced to be local
2557 because of a version file. We must initialize
2558 this entry in the global offset table. Since the
2559 offset must always be a multiple of 4, we use the
2560 least significant bit to record whether we have
2561 initialized it already.
2562
2563 When doing a dynamic link, we create a .rel.got
2564 relocation entry to initialize the value. This
2565 is done in the finish_dynamic_symbol routine. */
2566 if ((off & 1) != 0)
2567 off &= ~1;
2568 else
2569 {
2570 bfd_put_32 (output_bfd, relocation,
2571 htab->elf.sgot->contents + off);
2572 h->got.offset |= 1;
2573
2574 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
2575 h)
2576 && !(ELF_ST_VISIBILITY (h->other)
2577 && h->root.type == bfd_link_hash_undefweak))
2578 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec,
2579 off);
2580 }
2581 }
2582 else
2583 unresolved_reloc = FALSE;
2584 }
2585 else
2586 {
2587 if (local_got_offsets == NULL)
2588 abort ();
2589
2590 off = local_got_offsets[r_symndx];
2591
2592 /* The offset must always be a multiple of 4. We use
2593 the least significant bit to record whether we have
2594 already generated the necessary reloc. */
2595 if ((off & 1) != 0)
2596 off &= ~1;
2597 else
2598 {
2599 bfd_put_32 (output_bfd, relocation,
2600 htab->elf.sgot->contents + off);
2601
2602 if (info->shared || elf32_tic6x_using_dsbt (output_bfd))
2603 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off);
2604
2605 local_got_offsets[r_symndx] |= 1;
2606 }
2607 }
2608
2609 if (off >= (bfd_vma) -2)
2610 abort ();
2611
2612 if (htab->dsbt)
2613 relocation = (htab->elf.sgot->output_section->vma
2614 + htab->elf.sgot->output_offset + off
2615 - htab->dsbt->output_section->vma
2616 - htab->dsbt->output_offset);
2617 else
2618 relocation = (htab->elf.sgot->output_section->vma
2619 + htab->elf.sgot->output_offset + off
2620 - htab->elf.sgotplt->output_section->vma
2621 - htab->elf.sgotplt->output_offset);
2622
2623 if (rel->r_addend != 0)
2624 {
2625 /* We can't do anything for a relocation which is against
2626 a symbol *plus offset*. GOT holds relocations for
2627 symbols. Make this an error; the compiler isn't
2628 allowed to pass us these kinds of things. */
2629 if (h == NULL)
2630 (*_bfd_error_handler)
2631 (_("%B, section %A: relocation %s with non-zero addend %d"
2632 " against local symbol"),
2633 input_bfd,
2634 input_section,
2635 elf32_tic6x_howto_table[r_type].name,
2636 rel->r_addend);
2637 else
2638 (*_bfd_error_handler)
2639 (_("%B, section %A: relocation %s with non-zero addend %d"
2640 " against symbol `%s'"),
2641 input_bfd,
2642 input_section,
2643 elf32_tic6x_howto_table[r_type].name,
2644 rel->r_addend,
2645 h->root.root.string[0] != '\0' ? h->root.root.string
2646 : _("[whose name is lost]"));
2647
2648 bfd_set_error (bfd_error_bad_value);
2649 return FALSE;
2650 }
2651 break;
2652
2653 case R_C6000_PREL31:
2654 if (h != NULL
2655 && h->plt.offset != (bfd_vma) -1
2656 && htab->elf.splt != NULL)
2657 {
2658 relocation = (htab->elf.splt->output_section->vma
2659 + htab->elf.splt->output_offset
2660 + h->plt.offset);
2661 }
2662 break;
2663
2664 case R_C6000_COPY:
2665 /* Invalid in relocatable object. */
2666 default:
2667 /* Unknown relocation. */
2668 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2669 input_bfd, r_type);
2670 ok = FALSE;
2671 continue;
2672 }
2673
2674 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2675 contents, rel->r_offset,
2676 relocation, rel->r_addend);
2677
2678 done_reloc:
2679 if (r == bfd_reloc_ok
2680 && howto->complain_on_overflow == complain_overflow_bitfield)
2681 {
2682 /* Generic overflow handling accepts cases the ABI says
2683 should be rejected for R_C6000_ABS16 and
2684 R_C6000_ABS8. */
2685 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
2686 bfd_vma sbit = 1 << (howto->bitsize - 1);
2687 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
2688 bfd_vma value_sbits = value & sbits;
2689
2690 if (value_sbits != 0
2691 && value_sbits != sbit
2692 && value_sbits != sbits)
2693 r = bfd_reloc_overflow;
2694 }
2695
2696 if (r != bfd_reloc_ok)
2697 {
2698 const char *name;
2699 const char *error_message;
2700
2701 if (h != NULL)
2702 name = h->root.root.string;
2703 else
2704 {
2705 name = bfd_elf_string_from_elf_section (input_bfd,
2706 symtab_hdr->sh_link,
2707 sym->st_name);
2708 if (name == NULL)
2709 return FALSE;
2710 if (*name == '\0')
2711 name = bfd_section_name (input_bfd, sec);
2712 }
2713
2714 switch (r)
2715 {
2716 case bfd_reloc_overflow:
2717 /* If the overflowing reloc was to an undefined symbol,
2718 we have already printed one error message and there
2719 is no point complaining again. */
2720 if ((! h ||
2721 h->root.type != bfd_link_hash_undefined)
2722 && (!((*info->callbacks->reloc_overflow)
2723 (info, (h ? &h->root : NULL), name, howto->name,
2724 (bfd_vma) 0, input_bfd, input_section,
2725 rel->r_offset))))
2726 return FALSE;
2727 break;
2728
2729 case bfd_reloc_undefined:
2730 if (!((*info->callbacks->undefined_symbol)
2731 (info, name, input_bfd, input_section,
2732 rel->r_offset, TRUE)))
2733 return FALSE;
2734 break;
2735
2736 case bfd_reloc_outofrange:
2737 error_message = _("out of range");
2738 goto common_error;
2739
2740 case bfd_reloc_notsupported:
2741 error_message = _("unsupported relocation");
2742 goto common_error;
2743
2744 case bfd_reloc_dangerous:
2745 error_message = _("dangerous relocation");
2746 goto common_error;
2747
2748 default:
2749 error_message = _("unknown error");
2750 /* Fall through. */
2751
2752 common_error:
2753 BFD_ASSERT (error_message != NULL);
2754 if (!((*info->callbacks->reloc_dangerous)
2755 (info, error_message, input_bfd, input_section,
2756 rel->r_offset)))
2757 return FALSE;
2758 break;
2759 }
2760 }
2761 }
2762
2763 return ok;
2764 }
2765
2766 \f
2767 /* Look through the relocs for a section during the first phase, and
2768 calculate needed space in the global offset table, procedure linkage
2769 table, and dynamic reloc sections. */
2770
2771 static bfd_boolean
2772 elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info,
2773 asection *sec, const Elf_Internal_Rela *relocs)
2774 {
2775 struct elf32_tic6x_link_hash_table *htab;
2776 Elf_Internal_Shdr *symtab_hdr;
2777 struct elf_link_hash_entry **sym_hashes;
2778 const Elf_Internal_Rela *rel;
2779 const Elf_Internal_Rela *rel_end;
2780 asection *sreloc;
2781
2782 if (info->relocatable)
2783 return TRUE;
2784
2785 htab = elf32_tic6x_hash_table (info);
2786 symtab_hdr = &elf_symtab_hdr (abfd);
2787 sym_hashes = elf_sym_hashes (abfd);
2788
2789 /* Create dynamic sections for relocatable executables so that we can
2790 copy relocations. */
2791 if ((info->shared || elf32_tic6x_using_dsbt (abfd))
2792 && ! htab->elf.dynamic_sections_created)
2793 {
2794 if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
2795 return FALSE;
2796 }
2797
2798 sreloc = NULL;
2799
2800 rel_end = relocs + sec->reloc_count;
2801 for (rel = relocs; rel < rel_end; rel++)
2802 {
2803 unsigned int r_type;
2804 unsigned long r_symndx;
2805 struct elf_link_hash_entry *h;
2806 Elf_Internal_Sym *isym;
2807
2808 r_symndx = ELF32_R_SYM (rel->r_info);
2809 r_type = ELF32_R_TYPE (rel->r_info);
2810
2811 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
2812 {
2813 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
2814 abfd,
2815 r_symndx);
2816 return FALSE;
2817 }
2818
2819 if (r_symndx < symtab_hdr->sh_info)
2820 {
2821 /* A local symbol. */
2822 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2823 abfd, r_symndx);
2824 if (isym == NULL)
2825 return FALSE;
2826 h = NULL;
2827 }
2828 else
2829 {
2830 isym = NULL;
2831 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2832 while (h->root.type == bfd_link_hash_indirect
2833 || h->root.type == bfd_link_hash_warning)
2834 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2835 }
2836
2837 switch (r_type)
2838 {
2839 case R_C6000_PCR_S21:
2840 case R_C6000_PREL31:
2841 /* This symbol requires a procedure linkage table entry. We
2842 actually build the entry in adjust_dynamic_symbol,
2843 because this might be a case of linking PIC code which is
2844 never referenced by a dynamic object, in which case we
2845 don't need to generate a procedure linkage table entry
2846 after all. */
2847
2848 /* If this is a local symbol, we resolve it directly without
2849 creating a procedure linkage table entry. */
2850 if (h == NULL)
2851 continue;
2852
2853 h->needs_plt = 1;
2854 h->plt.refcount += 1;
2855 break;
2856
2857 case R_C6000_SBR_GOT_U15_W:
2858 case R_C6000_SBR_GOT_L16_W:
2859 case R_C6000_SBR_GOT_H16_W:
2860 case R_C6000_EHTYPE:
2861 /* This symbol requires a global offset table entry. */
2862 if (h != NULL)
2863 {
2864 h->got.refcount += 1;
2865 }
2866 else
2867 {
2868 bfd_signed_vma *local_got_refcounts;
2869
2870 /* This is a global offset table entry for a local symbol. */
2871 local_got_refcounts = elf_local_got_refcounts (abfd);
2872 if (local_got_refcounts == NULL)
2873 {
2874 bfd_size_type size;
2875
2876 size = symtab_hdr->sh_info;
2877 size *= (sizeof (bfd_signed_vma)
2878 + sizeof (bfd_vma) + sizeof(char));
2879 local_got_refcounts = bfd_zalloc (abfd, size);
2880 if (local_got_refcounts == NULL)
2881 return FALSE;
2882 elf_local_got_refcounts (abfd) = local_got_refcounts;
2883 }
2884 local_got_refcounts[r_symndx] += 1;
2885 }
2886
2887 if (htab->elf.sgot == NULL)
2888 {
2889 if (htab->elf.dynobj == NULL)
2890 htab->elf.dynobj = abfd;
2891 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
2892 return FALSE;
2893 }
2894 break;
2895
2896 case R_C6000_DSBT_INDEX:
2897 /* We'd like to check for nonzero dsbt_index here, but it's
2898 set up only after check_relocs is called. Instead, we
2899 store the number of R_C6000_DSBT_INDEX relocs in the
2900 pc_count field, and potentially discard the extra space
2901 in elf32_tic6x_allocate_dynrelocs. */
2902 if (!info->shared)
2903 break;
2904
2905 /* fall through */
2906 case R_C6000_ABS32:
2907 case R_C6000_ABS16:
2908 case R_C6000_ABS8:
2909 case R_C6000_ABS_S16:
2910 case R_C6000_ABS_L16:
2911 case R_C6000_ABS_H16:
2912 /* If we are creating a shared library, and this is a reloc
2913 against a global symbol, or a non PC relative reloc
2914 against a local symbol, then we need to copy the reloc
2915 into the shared library. However, if we are linking with
2916 -Bsymbolic, we do not need to copy a reloc against a
2917 global symbol which is defined in an object we are
2918 including in the link (i.e., DEF_REGULAR is set). At
2919 this point we have not seen all the input files, so it is
2920 possible that DEF_REGULAR is not set now but will be set
2921 later (it is never cleared). In case of a weak definition,
2922 DEF_REGULAR may be cleared later by a strong definition in
2923 a shared library. We account for that possibility below by
2924 storing information in the relocs_copied field of the hash
2925 table entry. A similar situation occurs when creating
2926 shared libraries and symbol visibility changes render the
2927 symbol local.
2928
2929 If on the other hand, we are creating an executable, we
2930 may need to keep relocations for symbols satisfied by a
2931 dynamic library if we manage to avoid copy relocs for the
2932 symbol. */
2933 if ((info->shared || elf32_tic6x_using_dsbt (abfd))
2934 && (sec->flags & SEC_ALLOC) != 0)
2935 {
2936 struct elf_dyn_relocs *p;
2937 struct elf_dyn_relocs **head;
2938
2939 /* We must copy these reloc types into the output file.
2940 Create a reloc section in dynobj and make room for
2941 this reloc. */
2942 if (sreloc == NULL)
2943 {
2944 if (htab->elf.dynobj == NULL)
2945 htab->elf.dynobj = abfd;
2946
2947 sreloc = _bfd_elf_make_dynamic_reloc_section
2948 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE);
2949
2950 if (sreloc == NULL)
2951 return FALSE;
2952 }
2953
2954 /* If this is a global symbol, we count the number of
2955 relocations we need for this symbol. */
2956 if (h != NULL)
2957 {
2958 head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs;
2959 }
2960 else
2961 {
2962 /* Track dynamic relocs needed for local syms too.
2963 We really need local syms available to do this
2964 easily. Oh well. */
2965 void **vpp;
2966 asection *s;
2967
2968 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2969 if (s == NULL)
2970 s = sec;
2971
2972 vpp = &elf_section_data (s)->local_dynrel;
2973 head = (struct elf_dyn_relocs **)vpp;
2974 }
2975
2976 p = *head;
2977 if (p == NULL || p->sec != sec)
2978 {
2979 bfd_size_type amt = sizeof *p;
2980 p = bfd_alloc (htab->elf.dynobj, amt);
2981 if (p == NULL)
2982 return FALSE;
2983 p->next = *head;
2984 *head = p;
2985 p->sec = sec;
2986 p->count = 0;
2987 p->pc_count = 0;
2988 }
2989
2990 p->count += 1;
2991 if (r_type == R_C6000_DSBT_INDEX)
2992 p->pc_count += 1;
2993 }
2994 break;
2995
2996 case R_C6000_SBR_U15_B:
2997 case R_C6000_SBR_U15_H:
2998 case R_C6000_SBR_U15_W:
2999 case R_C6000_SBR_S16:
3000 case R_C6000_SBR_L16_B:
3001 case R_C6000_SBR_L16_H:
3002 case R_C6000_SBR_L16_W:
3003 case R_C6000_SBR_H16_B:
3004 case R_C6000_SBR_H16_H:
3005 case R_C6000_SBR_H16_W:
3006 if (h != NULL && info->executable)
3007 {
3008 /* For B14-relative addresses, we might need a copy
3009 reloc. */
3010 h->non_got_ref = 1;
3011 }
3012 break;
3013
3014 default:
3015 break;
3016 }
3017 }
3018
3019 return TRUE;
3020 }
3021
3022 static bfd_boolean
3023 elf32_tic6x_add_symbol_hook (bfd *abfd,
3024 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3025 Elf_Internal_Sym *sym,
3026 const char **namep ATTRIBUTE_UNUSED,
3027 flagword *flagsp ATTRIBUTE_UNUSED,
3028 asection **secp,
3029 bfd_vma *valp)
3030 {
3031 switch (sym->st_shndx)
3032 {
3033 case SHN_TIC6X_SCOMMON:
3034 *secp = bfd_make_section_old_way (abfd, ".scommon");
3035 (*secp)->flags |= SEC_IS_COMMON;
3036 *valp = sym->st_size;
3037 bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value));
3038 break;
3039 }
3040
3041 return TRUE;
3042 }
3043
3044 static void
3045 elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
3046 {
3047 elf_symbol_type *elfsym;
3048
3049 elfsym = (elf_symbol_type *) asym;
3050 switch (elfsym->internal_elf_sym.st_shndx)
3051 {
3052 case SHN_TIC6X_SCOMMON:
3053 if (tic6x_elf_scom_section.name == NULL)
3054 {
3055 /* Initialize the small common section. */
3056 tic6x_elf_scom_section.name = ".scommon";
3057 tic6x_elf_scom_section.flags = SEC_IS_COMMON;
3058 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section;
3059 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol;
3060 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr;
3061 tic6x_elf_scom_symbol.name = ".scommon";
3062 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM;
3063 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section;
3064 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol;
3065 }
3066 asym->section = &tic6x_elf_scom_section;
3067 asym->value = elfsym->internal_elf_sym.st_size;
3068 break;
3069 }
3070 }
3071
3072 static int
3073 elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3074 const char *name ATTRIBUTE_UNUSED,
3075 Elf_Internal_Sym *sym,
3076 asection *input_sec,
3077 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3078 {
3079 /* If we see a common symbol, which implies a relocatable link, then
3080 if a symbol was small common in an input file, mark it as small
3081 common in the output file. */
3082 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
3083 sym->st_shndx = SHN_TIC6X_SCOMMON;
3084
3085 return 1;
3086 }
3087
3088 static bfd_boolean
3089 elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
3090 asection *sec,
3091 int *retval)
3092 {
3093 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3094 {
3095 *retval = SHN_TIC6X_SCOMMON;
3096 return TRUE;
3097 }
3098
3099 return FALSE;
3100 }
3101
3102 /* Allocate space in .plt, .got and associated reloc sections for
3103 dynamic relocs. */
3104
3105 static bfd_boolean
3106 elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3107 {
3108 struct bfd_link_info *info;
3109 struct elf32_tic6x_link_hash_table *htab;
3110 struct elf32_tic6x_link_hash_entry *eh;
3111 struct elf_dyn_relocs *p;
3112
3113 if (h->root.type == bfd_link_hash_indirect)
3114 return TRUE;
3115
3116 eh = (struct elf32_tic6x_link_hash_entry *) h;
3117 info = (struct bfd_link_info *) inf;
3118 htab = elf32_tic6x_hash_table (info);
3119
3120 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0)
3121 {
3122 /* Make sure this symbol is output as a dynamic symbol.
3123 Undefined weak syms won't yet be marked as dynamic. */
3124 if (h->dynindx == -1 && !h->forced_local)
3125 {
3126 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3127 return FALSE;
3128 }
3129
3130 if (info->shared
3131 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
3132 {
3133 asection *s = htab->elf.splt;
3134
3135 /* If this is the first .plt entry, make room for the special
3136 first entry. */
3137 if (s->size == 0)
3138 s->size += PLT_ENTRY_SIZE;
3139
3140 h->plt.offset = s->size;
3141
3142 /* If this symbol is not defined in a regular file, and we are
3143 not generating a shared library, then set the symbol to this
3144 location in the .plt. This is required to make function
3145 pointers compare as equal between the normal executable and
3146 the shared library. */
3147 if (! info->shared && !h->def_regular)
3148 {
3149 h->root.u.def.section = s;
3150 h->root.u.def.value = h->plt.offset;
3151 }
3152
3153 /* Make room for this entry. */
3154 s->size += PLT_ENTRY_SIZE;
3155 /* We also need to make an entry in the .got.plt section, which
3156 will be placed in the .got section by the linker script. */
3157 htab->elf.sgotplt->size += 4;
3158 /* We also need to make an entry in the .rel.plt section. */
3159 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
3160 }
3161 else
3162 {
3163 h->plt.offset = (bfd_vma) -1;
3164 h->needs_plt = 0;
3165 }
3166 }
3167 else
3168 {
3169 h->plt.offset = (bfd_vma) -1;
3170 h->needs_plt = 0;
3171 }
3172
3173 if (h->got.refcount > 0)
3174 {
3175 asection *s;
3176
3177 /* Make sure this symbol is output as a dynamic symbol.
3178 Undefined weak syms won't yet be marked as dynamic. */
3179 if (h->dynindx == -1
3180 && !h->forced_local)
3181 {
3182 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3183 return FALSE;
3184 }
3185
3186 s = htab->elf.sgot;
3187 h->got.offset = s->size;
3188 s->size += 4;
3189
3190 if (!(ELF_ST_VISIBILITY (h->other)
3191 && h->root.type == bfd_link_hash_undefweak))
3192 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3193 }
3194 else
3195 h->got.offset = (bfd_vma) -1;
3196
3197 if (eh->dyn_relocs == NULL)
3198 return TRUE;
3199
3200 /* Discard relocs on undefined weak syms with non-default
3201 visibility. */
3202 if (info->shared || elf32_tic6x_using_dsbt (htab->obfd))
3203 {
3204 /* We use the pc_count field to hold the number of
3205 R_C6000_DSBT_INDEX relocs. */
3206 if (htab->params.dsbt_index != 0)
3207 {
3208 struct elf_dyn_relocs **pp;
3209
3210 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3211 {
3212 p->count -= p->pc_count;
3213 p->pc_count = 0;
3214 if (p->count == 0)
3215 *pp = p->next;
3216 else
3217 pp = &p->next;
3218 }
3219 }
3220
3221 if (eh->dyn_relocs != NULL
3222 && h->root.type == bfd_link_hash_undefweak)
3223 {
3224 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3225 eh->dyn_relocs = NULL;
3226
3227 /* Make sure undefined weak symbols are output as a dynamic
3228 symbol in PIEs. */
3229 else if (h->dynindx == -1
3230 && !h->forced_local)
3231 {
3232 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3233 return FALSE;
3234 }
3235 }
3236 }
3237
3238 /* Finally, allocate space. */
3239 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3240 {
3241 asection *sreloc;
3242
3243 sreloc = elf_section_data (p->sec)->sreloc;
3244
3245 BFD_ASSERT (sreloc != NULL);
3246 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3247 }
3248
3249 return TRUE;
3250 }
3251
3252 /* Find any dynamic relocs that apply to read-only sections. */
3253
3254 static bfd_boolean
3255 elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3256 {
3257 struct elf32_tic6x_link_hash_entry *eh;
3258 struct elf_dyn_relocs *p;
3259
3260 eh = (struct elf32_tic6x_link_hash_entry *) h;
3261 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3262 {
3263 asection *s = p->sec->output_section;
3264
3265 if (s != NULL && (s->flags & SEC_READONLY) != 0)
3266 {
3267 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3268
3269 info->flags |= DF_TEXTREL;
3270
3271 /* Not an error, just cut short the traversal. */
3272 return FALSE;
3273 }
3274 }
3275 return TRUE;
3276 }
3277
3278 /* Set the sizes of the dynamic sections. */
3279
3280 static bfd_boolean
3281 elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3282 {
3283 struct elf32_tic6x_link_hash_table *htab;
3284 bfd *dynobj;
3285 asection *s;
3286 bfd_boolean relocs;
3287 bfd *ibfd;
3288
3289 htab = elf32_tic6x_hash_table (info);
3290 dynobj = htab->elf.dynobj;
3291 if (dynobj == NULL)
3292 abort ();
3293
3294 if (htab->elf.dynamic_sections_created)
3295 {
3296 /* Set the contents of the .interp section to the interpreter. */
3297 if (info->executable)
3298 {
3299 s = bfd_get_linker_section (dynobj, ".interp");
3300 if (s == NULL)
3301 abort ();
3302 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3303 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3304 }
3305 }
3306
3307 /* Set up .got offsets for local syms, and space for local dynamic
3308 relocs. */
3309 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
3310 {
3311 bfd_signed_vma *local_got;
3312 bfd_signed_vma *end_local_got;
3313 char *local_tls_type;
3314 bfd_vma *local_tlsdesc_gotent;
3315 bfd_size_type locsymcount;
3316 Elf_Internal_Shdr *symtab_hdr;
3317 asection *srel;
3318
3319 for (s = ibfd->sections; s != NULL; s = s->next)
3320 {
3321 struct elf_dyn_relocs *p;
3322
3323 for (p = ((struct elf_dyn_relocs *)
3324 elf_section_data (s)->local_dynrel);
3325 p != NULL;
3326 p = p->next)
3327 {
3328 if (!bfd_is_abs_section (p->sec)
3329 && bfd_is_abs_section (p->sec->output_section))
3330 {
3331 /* Input section has been discarded, either because
3332 it is a copy of a linkonce section or due to
3333 linker script /DISCARD/, so we'll be discarding
3334 the relocs too. */
3335 }
3336 else if (p->count != 0)
3337 {
3338 srel = elf_section_data (p->sec)->sreloc;
3339 srel->size += p->count * sizeof (Elf32_External_Rela);
3340 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3341 info->flags |= DF_TEXTREL;
3342 }
3343 }
3344 }
3345
3346 local_got = elf_local_got_refcounts (ibfd);
3347 if (!local_got)
3348 continue;
3349
3350 symtab_hdr = &elf_symtab_hdr (ibfd);
3351 locsymcount = symtab_hdr->sh_info;
3352 end_local_got = local_got + locsymcount;
3353 s = htab->elf.sgot;
3354 srel = htab->elf.srelgot;
3355 for (; local_got < end_local_got;
3356 ++local_got, ++local_tls_type, ++local_tlsdesc_gotent)
3357 {
3358 if (*local_got > 0)
3359 {
3360 *local_got = s->size;
3361 s->size += 4;
3362
3363 if (info->shared || elf32_tic6x_using_dsbt (output_bfd))
3364 {
3365 srel->size += sizeof (Elf32_External_Rela);
3366 }
3367 }
3368 else
3369 *local_got = (bfd_vma) -1;
3370 }
3371 }
3372
3373 /* Allocate global sym .plt and .got entries, and space for global
3374 sym dynamic relocs. */
3375 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info);
3376
3377 /* We now have determined the sizes of the various dynamic sections.
3378 Allocate memory for them. */
3379 relocs = FALSE;
3380 for (s = dynobj->sections; s != NULL; s = s->next)
3381 {
3382 bfd_boolean strip_section = TRUE;
3383
3384 if ((s->flags & SEC_LINKER_CREATED) == 0)
3385 continue;
3386
3387 if (s == htab->dsbt)
3388 s->size = 4 * htab->params.dsbt_size;
3389 else if (s == htab->elf.splt
3390 || s == htab->elf.sgot
3391 || s == htab->elf.sgotplt
3392 || s == htab->sdynbss)
3393 {
3394 /* Strip this section if we don't need it; see the
3395 comment below. */
3396 /* We'd like to strip these sections if they aren't needed, but if
3397 we've exported dynamic symbols from them we must leave them.
3398 It's too late to tell BFD to get rid of the symbols. */
3399
3400 if (htab->elf.hplt != NULL)
3401 strip_section = FALSE;
3402
3403 /* Round up the size of the PLT section to a multiple of 32. */
3404 if (s == htab->elf.splt && s->size > 0)
3405 s->size = (s->size + 31) & ~(bfd_vma)31;
3406 }
3407 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
3408 {
3409 if (s->size != 0
3410 && s != htab->elf.srelplt)
3411 relocs = TRUE;
3412
3413 /* We use the reloc_count field as a counter if we need
3414 to copy relocs into the output file. */
3415 s->reloc_count = 0;
3416 }
3417 else
3418 {
3419 /* It's not one of our sections, so don't allocate space. */
3420 continue;
3421 }
3422
3423 if (s->size == 0)
3424 {
3425 /* If we don't need this section, strip it from the
3426 output file. This is mostly to handle .rel.bss and
3427 .rel.plt. We must create both sections in
3428 create_dynamic_sections, because they must be created
3429 before the linker maps input sections to output
3430 sections. The linker does that before
3431 adjust_dynamic_symbol is called, and it is that
3432 function which decides whether anything needs to go
3433 into these sections. */
3434 if (strip_section)
3435 s->flags |= SEC_EXCLUDE;
3436 continue;
3437 }
3438
3439 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3440 continue;
3441
3442 /* Allocate memory for the section contents. We use bfd_zalloc
3443 here in case unused entries are not reclaimed before the
3444 section's contents are written out. This should not happen,
3445 but this way if it does, we get a R_C6000_NONE reloc instead
3446 of garbage. */
3447 s->contents = bfd_zalloc (dynobj, s->size);
3448 if (s->contents == NULL)
3449 return FALSE;
3450 }
3451
3452 if (htab->elf.dynamic_sections_created)
3453 {
3454 /* Add some entries to the .dynamic section. We fill in the
3455 values later, in elf32_tic6x_finish_dynamic_sections, but we
3456 must add the entries now so that we get the correct size for
3457 the .dynamic section. The DT_DEBUG entry is filled in by the
3458 dynamic linker and used by the debugger. */
3459 #define add_dynamic_entry(TAG, VAL) \
3460 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3461
3462 if (info->executable)
3463 {
3464 if (!add_dynamic_entry (DT_DEBUG, 0))
3465 return FALSE;
3466 }
3467
3468 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0)
3469 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size)
3470 || !add_dynamic_entry (DT_C6000_DSBT_INDEX,
3471 htab->params.dsbt_index))
3472 return FALSE;
3473
3474 if (htab->elf.splt->size != 0)
3475 {
3476 if (!add_dynamic_entry (DT_PLTGOT, 0)
3477 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3478 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3479 || !add_dynamic_entry (DT_JMPREL, 0))
3480 return FALSE;
3481 }
3482
3483 if (relocs)
3484 {
3485 if (!add_dynamic_entry (DT_RELA, 0)
3486 || !add_dynamic_entry (DT_RELASZ, 0)
3487 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3488 return FALSE;
3489
3490 /* If any dynamic relocs apply to a read-only section,
3491 then we need a DT_TEXTREL entry. */
3492 if ((info->flags & DF_TEXTREL) == 0)
3493 elf_link_hash_traverse (&htab->elf,
3494 elf32_tic6x_readonly_dynrelocs, info);
3495
3496 if ((info->flags & DF_TEXTREL) != 0)
3497 {
3498 if (!add_dynamic_entry (DT_TEXTREL, 0))
3499 return FALSE;
3500 }
3501 }
3502 }
3503 #undef add_dynamic_entry
3504
3505 return TRUE;
3506 }
3507
3508 /* This function is called after all the input files have been read,
3509 and the input sections have been assigned to output sections. */
3510
3511 static bfd_boolean
3512 elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
3513 {
3514 if (elf32_tic6x_using_dsbt (output_bfd) && !info->relocatable
3515 && !bfd_elf_stack_segment_size (output_bfd, info,
3516 "__stacksize", DEFAULT_STACK_SIZE))
3517 return FALSE;
3518
3519 return TRUE;
3520 }
3521
3522 static bfd_boolean
3523 elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3524 struct bfd_link_info *info)
3525 {
3526 struct elf32_tic6x_link_hash_table *htab;
3527 bfd *dynobj;
3528 asection *sdyn;
3529
3530 htab = elf32_tic6x_hash_table (info);
3531 dynobj = htab->elf.dynobj;
3532 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3533
3534 if (elf_hash_table (info)->dynamic_sections_created)
3535 {
3536 Elf32_External_Dyn * dyncon;
3537 Elf32_External_Dyn * dynconend;
3538
3539 BFD_ASSERT (sdyn != NULL);
3540
3541 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3542 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3543
3544 for (; dyncon < dynconend; dyncon++)
3545 {
3546 Elf_Internal_Dyn dyn;
3547 asection *s;
3548
3549 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3550
3551 switch (dyn.d_tag)
3552 {
3553 default:
3554 break;
3555
3556 case DT_C6000_DSBT_BASE:
3557 s = htab->dsbt;
3558 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset);
3559 break;
3560
3561 case DT_PLTGOT:
3562 s = htab->elf.sgotplt;
3563 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3564 break;
3565
3566 case DT_JMPREL:
3567 s = htab->elf.srelplt;
3568 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3569 break;
3570
3571 case DT_PLTRELSZ:
3572 s = htab->elf.srelplt;
3573 dyn.d_un.d_val = s->size;
3574 break;
3575 }
3576 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3577 }
3578
3579 /* Fill in the first entry in the procedure linkage table. */
3580 if (htab->elf.splt && htab->elf.splt->size > 0)
3581 {
3582 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma
3583 + htab->elf.sgotplt->output_offset
3584 - htab->dsbt->output_section->vma
3585 - htab->dsbt->output_offset) / 4;
3586
3587 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3588 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e,
3589 htab->elf.splt->contents);
3590 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3591 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e,
3592 htab->elf.splt->contents + 4);
3593 /* nop 3 */
3594 bfd_put_32 (output_bfd, 0x00004000,
3595 htab->elf.splt->contents + 8);
3596 /* b .s2 b2 */
3597 bfd_put_32 (output_bfd, 0x00080362,
3598 htab->elf.splt->contents + 12);
3599 /* nop 5 */
3600 bfd_put_32 (output_bfd, 0x00008000,
3601 htab->elf.splt->contents + 16);
3602
3603 elf_section_data (htab->elf.splt->output_section)
3604 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3605 }
3606 }
3607
3608 return TRUE;
3609 }
3610
3611 /* Return address for Ith PLT stub in section PLT, for relocation REL
3612 or (bfd_vma) -1 if it should not be included. */
3613
3614 static bfd_vma
3615 elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt,
3616 const arelent *rel ATTRIBUTE_UNUSED)
3617 {
3618 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3619 }
3620
3621 static int
3622 elf32_tic6x_obj_attrs_arg_type (int tag)
3623 {
3624 if (tag == Tag_ABI_compatibility)
3625 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
3626 else if (tag & 1)
3627 return ATTR_TYPE_FLAG_STR_VAL;
3628 else
3629 return ATTR_TYPE_FLAG_INT_VAL;
3630 }
3631
3632 static int
3633 elf32_tic6x_obj_attrs_order (int num)
3634 {
3635 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
3636 return Tag_ABI_conformance;
3637 if ((num - 1) < Tag_ABI_conformance)
3638 return num - 1;
3639 return num;
3640 }
3641
3642 static bfd_boolean
3643 elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
3644 {
3645 if ((tag & 127) < 64)
3646 {
3647 _bfd_error_handler
3648 (_("%B: error: unknown mandatory EABI object attribute %d"),
3649 abfd, tag);
3650 bfd_set_error (bfd_error_bad_value);
3651 return FALSE;
3652 }
3653 else
3654 {
3655 _bfd_error_handler
3656 (_("%B: warning: unknown EABI object attribute %d"),
3657 abfd, tag);
3658 return TRUE;
3659 }
3660 }
3661
3662 /* Merge the Tag_ISA attribute values ARCH1 and ARCH2
3663 and return the merged value. At present, all merges succeed, so no
3664 return value for errors is defined. */
3665
3666 int
3667 elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
3668 {
3669 int min_arch, max_arch;
3670
3671 min_arch = (arch1 < arch2 ? arch1 : arch2);
3672 max_arch = (arch1 > arch2 ? arch1 : arch2);
3673
3674 /* In most cases, the numerically greatest value is the correct
3675 merged value, but merging C64 and C67 results in C674X. */
3676 if ((min_arch == C6XABI_Tag_ISA_C67X
3677 || min_arch == C6XABI_Tag_ISA_C67XP)
3678 && (max_arch == C6XABI_Tag_ISA_C64X
3679 || max_arch == C6XABI_Tag_ISA_C64XP))
3680 return C6XABI_Tag_ISA_C674X;
3681
3682 return max_arch;
3683 }
3684
3685 /* Convert a Tag_ABI_array_object_alignment or
3686 Tag_ABI_array_object_align_expected tag value TAG to a
3687 corresponding alignment value; return the alignment, or -1 for an
3688 unknown tag value. */
3689
3690 static int
3691 elf32_tic6x_tag_to_array_alignment (int tag)
3692 {
3693 switch (tag)
3694 {
3695 case 0:
3696 return 8;
3697
3698 case 1:
3699 return 4;
3700
3701 case 2:
3702 return 16;
3703
3704 default:
3705 return -1;
3706 }
3707 }
3708
3709 /* Convert a Tag_ABI_array_object_alignment or
3710 Tag_ABI_array_object_align_expected alignment ALIGN to a
3711 corresponding tag value; return the tag value. */
3712
3713 static int
3714 elf32_tic6x_array_alignment_to_tag (int align)
3715 {
3716 switch (align)
3717 {
3718 case 8:
3719 return 0;
3720
3721 case 4:
3722 return 1;
3723
3724 case 16:
3725 return 2;
3726
3727 default:
3728 abort ();
3729 }
3730 }
3731
3732 /* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3733 succeeded, FALSE otherwise. */
3734
3735 static bfd_boolean
3736 elf32_tic6x_merge_attributes (bfd *ibfd, bfd *obfd)
3737 {
3738 bfd_boolean result = TRUE;
3739 obj_attribute *in_attr;
3740 obj_attribute *out_attr;
3741 int i;
3742 int array_align_in, array_align_out, array_expect_in, array_expect_out;
3743
3744 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3745 {
3746 /* This is the first object. Copy the attributes. */
3747 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3748
3749 out_attr = elf_known_obj_attributes_proc (obfd);
3750
3751 /* Use the Tag_null value to indicate the attributes have been
3752 initialized. */
3753 out_attr[0].i = 1;
3754
3755 return TRUE;
3756 }
3757
3758 in_attr = elf_known_obj_attributes_proc (ibfd);
3759 out_attr = elf_known_obj_attributes_proc (obfd);
3760
3761 /* No specification yet for handling of unknown attributes, so just
3762 ignore them and handle known ones. */
3763
3764 if (out_attr[Tag_ABI_stack_align_preserved].i
3765 < in_attr[Tag_ABI_stack_align_needed].i)
3766 {
3767 _bfd_error_handler
3768 (_("error: %B requires more stack alignment than %B preserves"),
3769 ibfd, obfd);
3770 result = FALSE;
3771 }
3772 if (in_attr[Tag_ABI_stack_align_preserved].i
3773 < out_attr[Tag_ABI_stack_align_needed].i)
3774 {
3775 _bfd_error_handler
3776 (_("error: %B requires more stack alignment than %B preserves"),
3777 obfd, ibfd);
3778 result = FALSE;
3779 }
3780
3781 array_align_in = elf32_tic6x_tag_to_array_alignment
3782 (in_attr[Tag_ABI_array_object_alignment].i);
3783 if (array_align_in == -1)
3784 {
3785 _bfd_error_handler
3786 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3787 ibfd);
3788 result = FALSE;
3789 }
3790 array_align_out = elf32_tic6x_tag_to_array_alignment
3791 (out_attr[Tag_ABI_array_object_alignment].i);
3792 if (array_align_out == -1)
3793 {
3794 _bfd_error_handler
3795 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3796 obfd);
3797 result = FALSE;
3798 }
3799 array_expect_in = elf32_tic6x_tag_to_array_alignment
3800 (in_attr[Tag_ABI_array_object_align_expected].i);
3801 if (array_expect_in == -1)
3802 {
3803 _bfd_error_handler
3804 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3805 ibfd);
3806 result = FALSE;
3807 }
3808 array_expect_out = elf32_tic6x_tag_to_array_alignment
3809 (out_attr[Tag_ABI_array_object_align_expected].i);
3810 if (array_expect_out == -1)
3811 {
3812 _bfd_error_handler
3813 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3814 obfd);
3815 result = FALSE;
3816 }
3817
3818 if (array_align_out < array_expect_in)
3819 {
3820 _bfd_error_handler
3821 (_("error: %B requires more array alignment than %B preserves"),
3822 ibfd, obfd);
3823 result = FALSE;
3824 }
3825 if (array_align_in < array_expect_out)
3826 {
3827 _bfd_error_handler
3828 (_("error: %B requires more array alignment than %B preserves"),
3829 obfd, ibfd);
3830 result = FALSE;
3831 }
3832
3833 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
3834 {
3835 switch (i)
3836 {
3837 case Tag_ISA:
3838 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
3839 out_attr[i].i);
3840 break;
3841
3842 case Tag_ABI_wchar_t:
3843 if (out_attr[i].i == 0)
3844 out_attr[i].i = in_attr[i].i;
3845 if (out_attr[i].i != 0
3846 && in_attr[i].i != 0
3847 && out_attr[i].i != in_attr[i].i)
3848 {
3849 _bfd_error_handler
3850 (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd);
3851 }
3852 break;
3853
3854 case Tag_ABI_stack_align_needed:
3855 if (out_attr[i].i < in_attr[i].i)
3856 out_attr[i].i = in_attr[i].i;
3857 break;
3858
3859 case Tag_ABI_stack_align_preserved:
3860 if (out_attr[i].i > in_attr[i].i)
3861 out_attr[i].i = in_attr[i].i;
3862 break;
3863
3864 case Tag_ABI_DSBT:
3865 if (out_attr[i].i != in_attr[i].i)
3866 {
3867 _bfd_error_handler
3868 (_("warning: %B and %B differ in whether code is "
3869 "compiled for DSBT"),
3870 obfd, ibfd);
3871 }
3872 break;
3873
3874 case Tag_ABI_PIC:
3875 case Tag_ABI_PID:
3876 if (out_attr[i].i > in_attr[i].i)
3877 out_attr[i].i = in_attr[i].i;
3878 break;
3879
3880 case Tag_ABI_array_object_alignment:
3881 if (array_align_out != -1
3882 && array_align_in != -1
3883 && array_align_out > array_align_in)
3884 out_attr[i].i
3885 = elf32_tic6x_array_alignment_to_tag (array_align_in);
3886 break;
3887
3888 case Tag_ABI_array_object_align_expected:
3889 if (array_expect_out != -1
3890 && array_expect_in != -1
3891 && array_expect_out < array_expect_in)
3892 out_attr[i].i
3893 = elf32_tic6x_array_alignment_to_tag (array_expect_in);
3894 break;
3895
3896 case Tag_ABI_conformance:
3897 /* Merging for this attribute is not specified. As on ARM,
3898 treat a missing attribute as no claim to conform and only
3899 merge identical values. */
3900 if (out_attr[i].s == NULL
3901 || in_attr[i].s == NULL
3902 || strcmp (out_attr[i].s,
3903 in_attr[i].s) != 0)
3904 out_attr[i].s = NULL;
3905 break;
3906
3907 case Tag_ABI_compatibility:
3908 /* Merged in _bfd_elf_merge_object_attributes. */
3909 break;
3910
3911 default:
3912 result
3913 = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
3914 break;
3915 }
3916
3917 if (in_attr[i].type && !out_attr[i].type)
3918 out_attr[i].type = in_attr[i].type;
3919 }
3920
3921 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
3922 if (!_bfd_elf_merge_object_attributes (ibfd, obfd))
3923 return FALSE;
3924
3925 result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
3926
3927 return result;
3928 }
3929
3930 static bfd_boolean
3931 elf32_tic6x_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3932 {
3933 if (!_bfd_generic_verify_endian_match (ibfd, obfd))
3934 return FALSE;
3935
3936 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (obfd))
3937 return TRUE;
3938
3939 if (!elf32_tic6x_merge_attributes (ibfd, obfd))
3940 return FALSE;
3941
3942 return TRUE;
3943 }
3944
3945 /* Add a new unwind edit to the list described by HEAD, TAIL. If TINDEX is zero,
3946 adds the edit to the start of the list. (The list must be built in order of
3947 ascending TINDEX: the function's callers are primarily responsible for
3948 maintaining that condition). */
3949
3950 static void
3951 elf32_tic6x_add_unwind_table_edit (tic6x_unwind_table_edit **head,
3952 tic6x_unwind_table_edit **tail,
3953 tic6x_unwind_edit_type type,
3954 asection *linked_section,
3955 unsigned int tindex)
3956 {
3957 tic6x_unwind_table_edit *new_edit = (tic6x_unwind_table_edit *)
3958 xmalloc (sizeof (tic6x_unwind_table_edit));
3959
3960 new_edit->type = type;
3961 new_edit->linked_section = linked_section;
3962 new_edit->index = tindex;
3963
3964 if (tindex > 0)
3965 {
3966 new_edit->next = NULL;
3967
3968 if (*tail)
3969 (*tail)->next = new_edit;
3970
3971 (*tail) = new_edit;
3972
3973 if (!*head)
3974 (*head) = new_edit;
3975 }
3976 else
3977 {
3978 new_edit->next = *head;
3979
3980 if (!*tail)
3981 *tail = new_edit;
3982
3983 *head = new_edit;
3984 }
3985 }
3986
3987 static _tic6x_elf_section_data *
3988 get_tic6x_elf_section_data (asection * sec)
3989 {
3990 if (sec && sec->owner && is_tic6x_elf (sec->owner))
3991 return elf32_tic6x_section_data (sec);
3992 else
3993 return NULL;
3994 }
3995
3996
3997 /* Increase the size of EXIDX_SEC by ADJUST bytes. ADJUST must be negative. */
3998 static void
3999 elf32_tic6x_adjust_exidx_size (asection *exidx_sec, int adjust)
4000 {
4001 asection *out_sec;
4002
4003 if (!exidx_sec->rawsize)
4004 exidx_sec->rawsize = exidx_sec->size;
4005
4006 bfd_set_section_size (exidx_sec->owner, exidx_sec, exidx_sec->size + adjust);
4007 out_sec = exidx_sec->output_section;
4008 /* Adjust size of output section. */
4009 bfd_set_section_size (out_sec->owner, out_sec, out_sec->size +adjust);
4010 }
4011
4012 /* Insert an EXIDX_CANTUNWIND marker at the end of a section. */
4013 static void
4014 elf32_tic6x_insert_cantunwind_after (asection *text_sec, asection *exidx_sec)
4015 {
4016 struct _tic6x_elf_section_data *exidx_data;
4017
4018 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4019 elf32_tic6x_add_unwind_table_edit (
4020 &exidx_data->u.exidx.unwind_edit_list,
4021 &exidx_data->u.exidx.unwind_edit_tail,
4022 INSERT_EXIDX_CANTUNWIND_AT_END, text_sec, UINT_MAX);
4023
4024 elf32_tic6x_adjust_exidx_size (exidx_sec, 8);
4025 }
4026
4027 /* Scan .cx6abi.exidx tables, and create a list describing edits which
4028 should be made to those tables, such that:
4029
4030 1. Regions without unwind data are marked with EXIDX_CANTUNWIND entries.
4031 2. Duplicate entries are merged together (EXIDX_CANTUNWIND, or unwind
4032 codes which have been inlined into the index).
4033
4034 If MERGE_EXIDX_ENTRIES is false, duplicate entries are not merged.
4035
4036 The edits are applied when the tables are written
4037 (in elf32_tic6x_write_section).
4038 */
4039
4040 bfd_boolean
4041 elf32_tic6x_fix_exidx_coverage (asection **text_section_order,
4042 unsigned int num_text_sections,
4043 struct bfd_link_info *info,
4044 bfd_boolean merge_exidx_entries)
4045 {
4046 bfd *inp;
4047 unsigned int last_second_word = 0, i;
4048 asection *last_exidx_sec = NULL;
4049 asection *last_text_sec = NULL;
4050 int last_unwind_type = -1;
4051
4052 /* Walk over all EXIDX sections, and create backlinks from the corrsponding
4053 text sections. */
4054 for (inp = info->input_bfds; inp != NULL; inp = inp->link_next)
4055 {
4056 asection *sec;
4057
4058 for (sec = inp->sections; sec != NULL; sec = sec->next)
4059 {
4060 struct bfd_elf_section_data *elf_sec = elf_section_data (sec);
4061 Elf_Internal_Shdr *hdr = &elf_sec->this_hdr;
4062
4063 if (!hdr || hdr->sh_type != SHT_C6000_UNWIND)
4064 continue;
4065
4066 if (elf_sec->linked_to)
4067 {
4068 Elf_Internal_Shdr *linked_hdr
4069 = &elf_section_data (elf_sec->linked_to)->this_hdr;
4070 struct _tic6x_elf_section_data *linked_sec_tic6x_data
4071 = get_tic6x_elf_section_data (linked_hdr->bfd_section);
4072
4073 if (linked_sec_tic6x_data == NULL)
4074 continue;
4075
4076 /* Link this .c6xabi.exidx section back from the
4077 text section it describes. */
4078 linked_sec_tic6x_data->u.text.tic6x_exidx_sec = sec;
4079 }
4080 }
4081 }
4082
4083 /* Walk all text sections in order of increasing VMA. Eilminate duplicate
4084 index table entries (EXIDX_CANTUNWIND and inlined unwind opcodes),
4085 and add EXIDX_CANTUNWIND entries for sections with no unwind table data. */
4086
4087 for (i = 0; i < num_text_sections; i++)
4088 {
4089 asection *sec = text_section_order[i];
4090 asection *exidx_sec;
4091 struct _tic6x_elf_section_data *tic6x_data
4092 = get_tic6x_elf_section_data (sec);
4093 struct _tic6x_elf_section_data *exidx_data;
4094 bfd_byte *contents = NULL;
4095 int deleted_exidx_bytes = 0;
4096 bfd_vma j;
4097 tic6x_unwind_table_edit *unwind_edit_head = NULL;
4098 tic6x_unwind_table_edit *unwind_edit_tail = NULL;
4099 Elf_Internal_Shdr *hdr;
4100 bfd *ibfd;
4101
4102 if (tic6x_data == NULL)
4103 continue;
4104
4105 exidx_sec = tic6x_data->u.text.tic6x_exidx_sec;
4106 if (exidx_sec == NULL)
4107 {
4108 /* Section has no unwind data. */
4109 if (last_unwind_type == 0 || !last_exidx_sec)
4110 continue;
4111
4112 /* Ignore zero sized sections. */
4113 if (sec->size == 0)
4114 continue;
4115
4116 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4117 last_unwind_type = 0;
4118 continue;
4119 }
4120
4121 /* Skip /DISCARD/ sections. */
4122 if (bfd_is_abs_section (exidx_sec->output_section))
4123 continue;
4124
4125 hdr = &elf_section_data (exidx_sec)->this_hdr;
4126 if (hdr->sh_type != SHT_C6000_UNWIND)
4127 continue;
4128
4129 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4130 if (exidx_data == NULL)
4131 continue;
4132
4133 ibfd = exidx_sec->owner;
4134
4135 if (hdr->contents != NULL)
4136 contents = hdr->contents;
4137 else if (! bfd_malloc_and_get_section (ibfd, exidx_sec, &contents))
4138 /* An error? */
4139 continue;
4140
4141 for (j = 0; j < hdr->sh_size; j += 8)
4142 {
4143 unsigned int second_word = bfd_get_32 (ibfd, contents + j + 4);
4144 int unwind_type;
4145 int elide = 0;
4146
4147 /* An EXIDX_CANTUNWIND entry. */
4148 if (second_word == 1)
4149 {
4150 if (last_unwind_type == 0)
4151 elide = 1;
4152 unwind_type = 0;
4153 }
4154 /* Inlined unwinding data. Merge if equal to previous. */
4155 else if ((second_word & 0x80000000) != 0)
4156 {
4157 if (merge_exidx_entries
4158 && last_second_word == second_word
4159 && last_unwind_type == 1)
4160 elide = 1;
4161 unwind_type = 1;
4162 last_second_word = second_word;
4163 }
4164 /* Normal table entry. In theory we could merge these too,
4165 but duplicate entries are likely to be much less common. */
4166 else
4167 unwind_type = 2;
4168
4169 if (elide)
4170 {
4171 elf32_tic6x_add_unwind_table_edit (&unwind_edit_head,
4172 &unwind_edit_tail, DELETE_EXIDX_ENTRY, NULL, j / 8);
4173
4174 deleted_exidx_bytes += 8;
4175 }
4176
4177 last_unwind_type = unwind_type;
4178 }
4179
4180 /* Free contents if we allocated it ourselves. */
4181 if (contents != hdr->contents)
4182 free (contents);
4183
4184 /* Record edits to be applied later (in elf32_tic6x_write_section). */
4185 exidx_data->u.exidx.unwind_edit_list = unwind_edit_head;
4186 exidx_data->u.exidx.unwind_edit_tail = unwind_edit_tail;
4187
4188 if (deleted_exidx_bytes > 0)
4189 elf32_tic6x_adjust_exidx_size (exidx_sec, -deleted_exidx_bytes);
4190
4191 last_exidx_sec = exidx_sec;
4192 last_text_sec = sec;
4193 }
4194
4195 /* Add terminating CANTUNWIND entry. */
4196 if (last_exidx_sec && last_unwind_type != 0)
4197 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4198
4199 return TRUE;
4200 }
4201
4202 /* Add ADDEND to lower 31 bits of VAL, leaving other bits unmodified. */
4203
4204 static unsigned long
4205 elf32_tic6x_add_low31 (unsigned long val, bfd_vma addend)
4206 {
4207 return (val & ~0x7ffffffful) | ((val + addend) & 0x7ffffffful);
4208 }
4209
4210 /* Copy an .c6xabi.exidx table entry, adding OFFSET to (applied) PREL31
4211 relocations. OFFSET is in bytes, and will be scaled before encoding. */
4212
4213
4214 static void
4215 elf32_tic6x_copy_exidx_entry (bfd *output_bfd, bfd_byte *to, bfd_byte *from,
4216 bfd_vma offset)
4217 {
4218 unsigned long first_word = bfd_get_32 (output_bfd, from);
4219 unsigned long second_word = bfd_get_32 (output_bfd, from + 4);
4220
4221 offset >>= 1;
4222 /* High bit of first word is supposed to be zero. */
4223 if ((first_word & 0x80000000ul) == 0)
4224 first_word = elf32_tic6x_add_low31 (first_word, offset);
4225
4226 /* If the high bit of the first word is clear, and the bit pattern is not 0x1
4227 (EXIDX_CANTUNWIND), this is an offset to an .c6xabi.extab entry. */
4228 if ((second_word != 0x1) && ((second_word & 0x80000000ul) == 0))
4229 second_word = elf32_tic6x_add_low31 (second_word, offset);
4230
4231 bfd_put_32 (output_bfd, first_word, to);
4232 bfd_put_32 (output_bfd, second_word, to + 4);
4233 }
4234
4235 /* Do the actual mangling of exception index tables. */
4236
4237 static bfd_boolean
4238 elf32_tic6x_write_section (bfd *output_bfd,
4239 struct bfd_link_info *link_info,
4240 asection *sec,
4241 bfd_byte *contents)
4242 {
4243 _tic6x_elf_section_data *tic6x_data;
4244 struct elf32_tic6x_link_hash_table *globals
4245 = elf32_tic6x_hash_table (link_info);
4246 bfd_vma offset = sec->output_section->vma + sec->output_offset;
4247
4248 if (globals == NULL)
4249 return FALSE;
4250
4251 /* If this section has not been allocated an _tic6x_elf_section_data
4252 structure then we cannot record anything. */
4253 tic6x_data = get_tic6x_elf_section_data (sec);
4254 if (tic6x_data == NULL)
4255 return FALSE;
4256
4257 if (tic6x_data->elf.this_hdr.sh_type != SHT_C6000_UNWIND)
4258 return FALSE;
4259
4260 tic6x_unwind_table_edit *edit_node
4261 = tic6x_data->u.exidx.unwind_edit_list;
4262 /* Now, sec->size is the size of the section we will write. The original
4263 size (before we merged duplicate entries and inserted EXIDX_CANTUNWIND
4264 markers) was sec->rawsize. (This isn't the case if we perform no
4265 edits, then rawsize will be zero and we should use size). */
4266 bfd_byte *edited_contents = (bfd_byte *) bfd_malloc (sec->size);
4267 unsigned int input_size = sec->rawsize ? sec->rawsize : sec->size;
4268 unsigned int in_index, out_index;
4269 bfd_vma add_to_offsets = 0;
4270
4271 for (in_index = 0, out_index = 0; in_index * 8 < input_size || edit_node;)
4272 {
4273 if (edit_node)
4274 {
4275 unsigned int edit_index = edit_node->index;
4276
4277 if (in_index < edit_index && in_index * 8 < input_size)
4278 {
4279 elf32_tic6x_copy_exidx_entry (output_bfd,
4280 edited_contents + out_index * 8,
4281 contents + in_index * 8, add_to_offsets);
4282 out_index++;
4283 in_index++;
4284 }
4285 else if (in_index == edit_index
4286 || (in_index * 8 >= input_size
4287 && edit_index == UINT_MAX))
4288 {
4289 switch (edit_node->type)
4290 {
4291 case DELETE_EXIDX_ENTRY:
4292 in_index++;
4293 add_to_offsets += 8;
4294 break;
4295
4296 case INSERT_EXIDX_CANTUNWIND_AT_END:
4297 {
4298 asection *text_sec = edit_node->linked_section;
4299 bfd_vma text_offset = text_sec->output_section->vma
4300 + text_sec->output_offset
4301 + text_sec->size;
4302 bfd_vma exidx_offset = offset + out_index * 8;
4303 unsigned long prel31_offset;
4304
4305 /* Note: this is meant to be equivalent to an
4306 R_C6000_PREL31 relocation. These synthetic
4307 EXIDX_CANTUNWIND markers are not relocated by the
4308 usual BFD method. */
4309 prel31_offset = ((text_offset - exidx_offset) >> 1)
4310 & 0x7ffffffful;
4311
4312 /* First address we can't unwind. */
4313 bfd_put_32 (output_bfd, prel31_offset,
4314 &edited_contents[out_index * 8]);
4315
4316 /* Code for EXIDX_CANTUNWIND. */
4317 bfd_put_32 (output_bfd, 0x1,
4318 &edited_contents[out_index * 8 + 4]);
4319
4320 out_index++;
4321 add_to_offsets -= 8;
4322 }
4323 break;
4324 }
4325
4326 edit_node = edit_node->next;
4327 }
4328 }
4329 else
4330 {
4331 /* No more edits, copy remaining entries verbatim. */
4332 elf32_tic6x_copy_exidx_entry (output_bfd,
4333 edited_contents + out_index * 8,
4334 contents + in_index * 8, add_to_offsets);
4335 out_index++;
4336 in_index++;
4337 }
4338 }
4339
4340 if (!(sec->flags & SEC_EXCLUDE) && !(sec->flags & SEC_NEVER_LOAD))
4341 bfd_set_section_contents (output_bfd, sec->output_section,
4342 edited_contents,
4343 (file_ptr) sec->output_offset, sec->size);
4344
4345 return TRUE;
4346 }
4347
4348 static void
4349 elf32_tic6x_set_osabi (bfd *abfd, struct bfd_link_info *link_info)
4350 {
4351 if (link_info != NULL && link_info->relocatable)
4352 return;
4353 _bfd_elf_set_osabi (abfd, link_info);
4354 }
4355
4356 #define TARGET_LITTLE_SYM bfd_elf32_tic6x_le_vec
4357 #define TARGET_LITTLE_NAME "elf32-tic6x-le"
4358 #define TARGET_BIG_SYM bfd_elf32_tic6x_be_vec
4359 #define TARGET_BIG_NAME "elf32-tic6x-be"
4360 #define ELF_ARCH bfd_arch_tic6x
4361 #define ELF_TARGET_ID TIC6X_ELF_DATA
4362 #define ELF_MACHINE_CODE EM_TI_C6000
4363 #define ELF_MAXPAGESIZE 0x1000
4364 #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
4365 #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
4366 #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
4367 #define bfd_elf32_mkobject elf32_tic6x_mkobject
4368 #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
4369 #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
4370 #define elf_backend_stack_align 8
4371 #define elf_backend_can_gc_sections 1
4372 #define elf_backend_default_use_rela_p 1
4373 #define elf_backend_may_use_rel_p 1
4374 #define elf_backend_may_use_rela_p 1
4375 #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
4376 #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
4377 #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
4378 #define elf_backend_obj_attrs_section ".c6xabi.attributes"
4379 #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
4380 #define elf_backend_obj_attrs_vendor "c6xabi"
4381 #define elf_backend_can_refcount 1
4382 #define elf_backend_want_got_plt 1
4383 #define elf_backend_want_dynbss 1
4384 #define elf_backend_plt_readonly 1
4385 #define elf_backend_rela_normal 1
4386 #define elf_backend_got_header_size 8
4387 #define elf_backend_fake_sections elf32_tic6x_fake_sections
4388 #define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook
4389 #define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections
4390 #define elf_backend_create_dynamic_sections \
4391 elf32_tic6x_create_dynamic_sections
4392 #define elf_backend_adjust_dynamic_symbol \
4393 elf32_tic6x_adjust_dynamic_symbol
4394 #define elf_backend_check_relocs elf32_tic6x_check_relocs
4395 #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
4396 #define elf_backend_symbol_processing elf32_tic6x_symbol_processing
4397 #define elf_backend_link_output_symbol_hook \
4398 elf32_tic6x_link_output_symbol_hook
4399 #define elf_backend_section_from_bfd_section \
4400 elf32_tic6x_section_from_bfd_section
4401 #define elf_backend_relocate_section elf32_tic6x_relocate_section
4402 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
4403 #define elf_backend_finish_dynamic_symbol \
4404 elf32_tic6x_finish_dynamic_symbol
4405 #define elf_backend_always_size_sections \
4406 elf32_tic6x_always_size_sections
4407 #define elf_backend_size_dynamic_sections \
4408 elf32_tic6x_size_dynamic_sections
4409 #define elf_backend_finish_dynamic_sections \
4410 elf32_tic6x_finish_dynamic_sections
4411 #define bfd_elf32_bfd_final_link \
4412 elf32_tic6x_final_link
4413 #define elf_backend_write_section elf32_tic6x_write_section
4414 #define elf_info_to_howto elf32_tic6x_info_to_howto
4415 #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
4416
4417 #undef elf_backend_omit_section_dynsym
4418 #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
4419 #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
4420
4421 #include "elf32-target.h"
4422
4423 #undef elf32_bed
4424 #define elf32_bed elf32_tic6x_linux_bed
4425
4426 #undef TARGET_LITTLE_SYM
4427 #define TARGET_LITTLE_SYM bfd_elf32_tic6x_linux_le_vec
4428 #undef TARGET_LITTLE_NAME
4429 #define TARGET_LITTLE_NAME "elf32-tic6x-linux-le"
4430 #undef TARGET_BIG_SYM
4431 #define TARGET_BIG_SYM bfd_elf32_tic6x_linux_be_vec
4432 #undef TARGET_BIG_NAME
4433 #define TARGET_BIG_NAME "elf32-tic6x-linux-be"
4434 #undef ELF_OSABI
4435 #define ELF_OSABI ELFOSABI_C6000_LINUX
4436
4437 #undef elf_backend_post_process_headers
4438 #define elf_backend_post_process_headers elf32_tic6x_set_osabi
4439
4440 #include "elf32-target.h"
4441
4442 #undef elf32_bed
4443 #define elf32_bed elf32_tic6x_elf_bed
4444
4445 #undef TARGET_LITTLE_SYM
4446 #define TARGET_LITTLE_SYM bfd_elf32_tic6x_elf_le_vec
4447 #undef TARGET_LITTLE_NAME
4448 #define TARGET_LITTLE_NAME "elf32-tic6x-elf-le"
4449 #undef TARGET_BIG_SYM
4450 #define TARGET_BIG_SYM bfd_elf32_tic6x_elf_be_vec
4451 #undef TARGET_BIG_NAME
4452 #define TARGET_BIG_NAME "elf32-tic6x-elf-be"
4453 #undef ELF_OSABI
4454 #define ELF_OSABI ELFOSABI_C6000_ELFABI
4455
4456 #undef elf_backend_post_process_headers
4457 #define elf_backend_post_process_headers elf32_tic6x_set_osabi
4458
4459 #include "elf32-target.h"