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[thirdparty/binutils-gdb.git] / bfd / elf32-tic6x.c
1 /* 32-bit ELF support for TI C6X
2 Copyright (C) 2010-2019 Free Software Foundation, Inc.
3 Contributed by Joseph Myers <joseph@codesourcery.com>
4 Bernd Schmidt <bernds@codesourcery.com>
5
6 This file is part of BFD, the Binary File Descriptor library.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
22
23 #include "sysdep.h"
24 #include <limits.h>
25 #include "bfd.h"
26 #include "libbfd.h"
27 #include "libiberty.h"
28 #include "elf-bfd.h"
29 #include "elf/tic6x.h"
30 #include "elf32-tic6x.h"
31
32 #define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0"
33
34 /* DSBT binaries have a default 128K stack. */
35 #define DEFAULT_STACK_SIZE 0x20000
36
37 /* The size in bytes of an entry in the procedure linkage table. */
38 #define PLT_ENTRY_SIZE 24
39
40 /* TI C6X ELF linker hash table. */
41
42 struct elf32_tic6x_link_hash_table
43 {
44 struct elf_link_hash_table elf;
45
46 /* C6X specific command line arguments. */
47 struct elf32_tic6x_params params;
48
49 /* Small local sym cache. */
50 struct sym_cache sym_cache;
51
52 /* The output BFD, for convenience. */
53 bfd *obfd;
54
55 /* The .dsbt section. */
56 asection *dsbt;
57 };
58
59 /* Get the TI C6X ELF linker hash table from a link_info structure. */
60
61 #define elf32_tic6x_hash_table(p) \
62 ((struct elf32_tic6x_link_hash_table *) ((p)->hash))
63
64 /* TI C6X ELF linker hash entry. */
65
66 struct elf32_tic6x_link_hash_entry
67 {
68 struct elf_link_hash_entry elf;
69
70 /* Track dynamic relocs copied for this symbol. */
71 struct elf_dyn_relocs *dyn_relocs;
72 };
73
74 typedef enum
75 {
76 DELETE_EXIDX_ENTRY,
77 INSERT_EXIDX_CANTUNWIND_AT_END
78 }
79 tic6x_unwind_edit_type;
80
81 /* A (sorted) list of edits to apply to an unwind table. */
82 typedef struct tic6x_unwind_table_edit
83 {
84 tic6x_unwind_edit_type type;
85 /* Note: we sometimes want to insert an unwind entry corresponding to a
86 section different from the one we're currently writing out, so record the
87 (text) section this edit relates to here. */
88 asection *linked_section;
89 unsigned int index;
90 struct tic6x_unwind_table_edit *next;
91 }
92 tic6x_unwind_table_edit;
93
94 typedef struct _tic6x_elf_section_data
95 {
96 /* Information about mapping symbols. */
97 struct bfd_elf_section_data elf;
98 /* Information about unwind tables. */
99 union
100 {
101 /* Unwind info attached to a text section. */
102 struct
103 {
104 asection *tic6x_exidx_sec;
105 } text;
106
107 /* Unwind info attached to an .c6xabi.exidx section. */
108 struct
109 {
110 tic6x_unwind_table_edit *unwind_edit_list;
111 tic6x_unwind_table_edit *unwind_edit_tail;
112 } exidx;
113 } u;
114 }
115 _tic6x_elf_section_data;
116
117 #define elf32_tic6x_section_data(sec) \
118 ((_tic6x_elf_section_data *) elf_section_data (sec))
119
120 struct elf32_tic6x_obj_tdata
121 {
122 struct elf_obj_tdata root;
123
124 /* Whether to use RELA relocations when generating relocations.
125 This is a per-object flag to allow the assembler to generate REL
126 relocations for use in linker testcases. */
127 bfd_boolean use_rela_p;
128 };
129
130 #define elf32_tic6x_tdata(abfd) \
131 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
132
133 #define is_tic6x_elf(bfd) \
134 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
135 && elf_tdata (bfd) != NULL \
136 && elf_object_id (bfd) == TIC6X_ELF_DATA)
137
138 /* C6X ELF uses two common sections. One is the usual one, and the
139 other is for small objects. All the small objects are kept
140 together, and then referenced via the gp pointer, which yields
141 faster assembler code. This is what we use for the small common
142 section. This approach is copied from ecoff.c. */
143 static asection tic6x_elf_scom_section;
144 static asymbol tic6x_elf_scom_symbol;
145 static asymbol *tic6x_elf_scom_symbol_ptr;
146
147 static reloc_howto_type elf32_tic6x_howto_table[] =
148 {
149 HOWTO (R_C6000_NONE, /* type */
150 0, /* rightshift */
151 3, /* size (0 = byte, 1 = short, 2 = long) */
152 0, /* bitsize */
153 FALSE, /* pc_relative */
154 0, /* bitpos */
155 complain_overflow_dont,/* complain_on_overflow */
156 bfd_elf_generic_reloc, /* special_function */
157 "R_C6000_NONE", /* name */
158 FALSE, /* partial_inplace */
159 0, /* src_mask */
160 0, /* dst_mask */
161 FALSE), /* pcrel_offset */
162 HOWTO (R_C6000_ABS32, /* type */
163 0, /* rightshift */
164 2, /* size (0 = byte, 1 = short, 2 = long) */
165 32, /* bitsize */
166 FALSE, /* pc_relative */
167 0, /* bitpos */
168 complain_overflow_dont,/* complain_on_overflow */
169 bfd_elf_generic_reloc, /* special_function */
170 "R_C6000_ABS32", /* name */
171 FALSE, /* partial_inplace */
172 0, /* src_mask */
173 0xffffffff, /* dst_mask */
174 FALSE), /* pcrel_offset */
175 HOWTO (R_C6000_ABS16, /* type */
176 0, /* rightshift */
177 1, /* size (0 = byte, 1 = short, 2 = long) */
178 16, /* bitsize */
179 FALSE, /* pc_relative */
180 0, /* bitpos */
181 complain_overflow_bitfield,/* complain_on_overflow */
182 bfd_elf_generic_reloc, /* special_function */
183 "R_C6000_ABS16", /* name */
184 FALSE, /* partial_inplace */
185 0, /* src_mask */
186 0x0000ffff, /* dst_mask */
187 FALSE), /* pcrel_offset */
188 HOWTO (R_C6000_ABS8, /* type */
189 0, /* rightshift */
190 0, /* size (0 = byte, 1 = short, 2 = long) */
191 8, /* bitsize */
192 FALSE, /* pc_relative */
193 0, /* bitpos */
194 complain_overflow_bitfield,/* complain_on_overflow */
195 bfd_elf_generic_reloc, /* special_function */
196 "R_C6000_ABS8", /* name */
197 FALSE, /* partial_inplace */
198 0, /* src_mask */
199 0x000000ff, /* dst_mask */
200 FALSE), /* pcrel_offset */
201 HOWTO (R_C6000_PCR_S21, /* type */
202 2, /* rightshift */
203 2, /* size (0 = byte, 1 = short, 2 = long) */
204 21, /* bitsize */
205 TRUE, /* pc_relative */
206 7, /* bitpos */
207 complain_overflow_signed,/* complain_on_overflow */
208 bfd_elf_generic_reloc, /* special_function */
209 "R_C6000_PCR_S21", /* name */
210 FALSE, /* partial_inplace */
211 0, /* src_mask */
212 0x0fffff80, /* dst_mask */
213 TRUE), /* pcrel_offset */
214 HOWTO (R_C6000_PCR_S12, /* type */
215 2, /* rightshift */
216 2, /* size (0 = byte, 1 = short, 2 = long) */
217 12, /* bitsize */
218 TRUE, /* pc_relative */
219 16, /* bitpos */
220 complain_overflow_signed,/* complain_on_overflow */
221 bfd_elf_generic_reloc, /* special_function */
222 "R_C6000_PCR_S12", /* name */
223 FALSE, /* partial_inplace */
224 0, /* src_mask */
225 0x0fff0000, /* dst_mask */
226 TRUE), /* pcrel_offset */
227 HOWTO (R_C6000_PCR_S10, /* type */
228 2, /* rightshift */
229 2, /* size (0 = byte, 1 = short, 2 = long) */
230 10, /* bitsize */
231 TRUE, /* pc_relative */
232 13, /* bitpos */
233 complain_overflow_signed,/* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_C6000_PCR_S10", /* name */
236 FALSE, /* partial_inplace */
237 0, /* src_mask */
238 0x007fe000, /* dst_mask */
239 TRUE), /* pcrel_offset */
240 HOWTO (R_C6000_PCR_S7, /* type */
241 2, /* rightshift */
242 2, /* size (0 = byte, 1 = short, 2 = long) */
243 7, /* bitsize */
244 TRUE, /* pc_relative */
245 16, /* bitpos */
246 complain_overflow_signed,/* complain_on_overflow */
247 bfd_elf_generic_reloc, /* special_function */
248 "R_C6000_PCR_S7", /* name */
249 FALSE, /* partial_inplace */
250 0, /* src_mask */
251 0x007f0000, /* dst_mask */
252 TRUE), /* pcrel_offset */
253 HOWTO (R_C6000_ABS_S16, /* type */
254 0, /* rightshift */
255 2, /* size (0 = byte, 1 = short, 2 = long) */
256 16, /* bitsize */
257 FALSE, /* pc_relative */
258 7, /* bitpos */
259 complain_overflow_signed,/* complain_on_overflow */
260 bfd_elf_generic_reloc, /* special_function */
261 "R_C6000_ABS_S16", /* name */
262 FALSE, /* partial_inplace */
263 0, /* src_mask */
264 0x007fff80, /* dst_mask */
265 FALSE), /* pcrel_offset */
266 HOWTO (R_C6000_ABS_L16, /* type */
267 0, /* rightshift */
268 2, /* size (0 = byte, 1 = short, 2 = long) */
269 16, /* bitsize */
270 FALSE, /* pc_relative */
271 7, /* bitpos */
272 complain_overflow_dont,/* complain_on_overflow */
273 bfd_elf_generic_reloc, /* special_function */
274 "R_C6000_ABS_L16", /* name */
275 FALSE, /* partial_inplace */
276 0, /* src_mask */
277 0x007fff80, /* dst_mask */
278 FALSE), /* pcrel_offset */
279 HOWTO (R_C6000_ABS_H16, /* type */
280 16, /* rightshift */
281 2, /* size (0 = byte, 1 = short, 2 = long) */
282 16, /* bitsize */
283 FALSE, /* pc_relative */
284 7, /* bitpos */
285 complain_overflow_dont,/* complain_on_overflow */
286 bfd_elf_generic_reloc, /* special_function */
287 "R_C6000_ABS_H16", /* name */
288 FALSE, /* partial_inplace */
289 0, /* src_mask */
290 0x007fff80, /* dst_mask */
291 FALSE), /* pcrel_offset */
292 HOWTO (R_C6000_SBR_U15_B, /* type */
293 0, /* rightshift */
294 2, /* size (0 = byte, 1 = short, 2 = long) */
295 15, /* bitsize */
296 FALSE, /* pc_relative */
297 8, /* bitpos */
298 complain_overflow_unsigned,/* complain_on_overflow */
299 bfd_elf_generic_reloc, /* special_function */
300 "R_C6000_SBR_U15_B", /* name */
301 FALSE, /* partial_inplace */
302 0, /* src_mask */
303 0x007fff00, /* dst_mask */
304 FALSE), /* pcrel_offset */
305 HOWTO (R_C6000_SBR_U15_H, /* type */
306 1, /* rightshift */
307 2, /* size (0 = byte, 1 = short, 2 = long) */
308 15, /* bitsize */
309 FALSE, /* pc_relative */
310 8, /* bitpos */
311 complain_overflow_unsigned,/* complain_on_overflow */
312 bfd_elf_generic_reloc, /* special_function */
313 "R_C6000_SBR_U15_H", /* name */
314 FALSE, /* partial_inplace */
315 0, /* src_mask */
316 0x007fff00, /* dst_mask */
317 FALSE), /* pcrel_offset */
318 HOWTO (R_C6000_SBR_U15_W, /* type */
319 2, /* rightshift */
320 2, /* size (0 = byte, 1 = short, 2 = long) */
321 15, /* bitsize */
322 FALSE, /* pc_relative */
323 8, /* bitpos */
324 complain_overflow_unsigned,/* complain_on_overflow */
325 bfd_elf_generic_reloc, /* special_function */
326 "R_C6000_SBR_U15_W", /* name */
327 FALSE, /* partial_inplace */
328 0, /* src_mask */
329 0x007fff00, /* dst_mask */
330 FALSE), /* pcrel_offset */
331 HOWTO (R_C6000_SBR_S16, /* type */
332 0, /* rightshift */
333 2, /* size (0 = byte, 1 = short, 2 = long) */
334 16, /* bitsize */
335 FALSE, /* pc_relative */
336 7, /* bitpos */
337 complain_overflow_signed,/* complain_on_overflow */
338 bfd_elf_generic_reloc, /* special_function */
339 "R_C6000_SBR_S16", /* name */
340 FALSE, /* partial_inplace */
341 0, /* src_mask */
342 0x007fff80, /* dst_mask */
343 FALSE), /* pcrel_offset */
344 HOWTO (R_C6000_SBR_L16_B, /* type */
345 0, /* rightshift */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
347 16, /* bitsize */
348 FALSE, /* pc_relative */
349 7, /* bitpos */
350 complain_overflow_dont,/* complain_on_overflow */
351 bfd_elf_generic_reloc, /* special_function */
352 "R_C6000_SBR_L16_B", /* name */
353 FALSE, /* partial_inplace */
354 0, /* src_mask */
355 0x007fff80, /* dst_mask */
356 FALSE), /* pcrel_offset */
357 HOWTO (R_C6000_SBR_L16_H, /* type */
358 1, /* rightshift */
359 2, /* size (0 = byte, 1 = short, 2 = long) */
360 16, /* bitsize */
361 FALSE, /* pc_relative */
362 7, /* bitpos */
363 complain_overflow_dont,/* complain_on_overflow */
364 bfd_elf_generic_reloc, /* special_function */
365 "R_C6000_SBR_L16_H", /* name */
366 FALSE, /* partial_inplace */
367 0, /* src_mask */
368 0x007fff80, /* dst_mask */
369 FALSE), /* pcrel_offset */
370 HOWTO (R_C6000_SBR_L16_W, /* type */
371 2, /* rightshift */
372 2, /* size (0 = byte, 1 = short, 2 = long) */
373 16, /* bitsize */
374 FALSE, /* pc_relative */
375 7, /* bitpos */
376 complain_overflow_dont,/* complain_on_overflow */
377 bfd_elf_generic_reloc, /* special_function */
378 "R_C6000_SBR_L16_W", /* name */
379 FALSE, /* partial_inplace */
380 0, /* src_mask */
381 0x007fff80, /* dst_mask */
382 FALSE), /* pcrel_offset */
383 HOWTO (R_C6000_SBR_H16_B, /* type */
384 16, /* rightshift */
385 2, /* size (0 = byte, 1 = short, 2 = long) */
386 16, /* bitsize */
387 FALSE, /* pc_relative */
388 7, /* bitpos */
389 complain_overflow_dont,/* complain_on_overflow */
390 bfd_elf_generic_reloc, /* special_function */
391 "R_C6000_SBR_H16_B", /* name */
392 FALSE, /* partial_inplace */
393 0, /* src_mask */
394 0x007fff80, /* dst_mask */
395 FALSE), /* pcrel_offset */
396 HOWTO (R_C6000_SBR_H16_H, /* type */
397 17, /* rightshift */
398 2, /* size (0 = byte, 1 = short, 2 = long) */
399 16, /* bitsize */
400 FALSE, /* pc_relative */
401 7, /* bitpos */
402 complain_overflow_dont,/* complain_on_overflow */
403 bfd_elf_generic_reloc, /* special_function */
404 "R_C6000_SBR_H16_H", /* name */
405 FALSE, /* partial_inplace */
406 0, /* src_mask */
407 0x007fff80, /* dst_mask */
408 FALSE), /* pcrel_offset */
409 HOWTO (R_C6000_SBR_H16_W, /* type */
410 18, /* rightshift */
411 2, /* size (0 = byte, 1 = short, 2 = long) */
412 16, /* bitsize */
413 FALSE, /* pc_relative */
414 7, /* bitpos */
415 complain_overflow_dont,/* complain_on_overflow */
416 bfd_elf_generic_reloc, /* special_function */
417 "R_C6000_SBR_H16_W", /* name */
418 FALSE, /* partial_inplace */
419 0, /* src_mask */
420 0x007fff80, /* dst_mask */
421 FALSE), /* pcrel_offset */
422 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
423 2, /* rightshift */
424 2, /* size (0 = byte, 1 = short, 2 = long) */
425 15, /* bitsize */
426 FALSE, /* pc_relative */
427 8, /* bitpos */
428 complain_overflow_unsigned,/* complain_on_overflow */
429 bfd_elf_generic_reloc, /* special_function */
430 "R_C6000_SBR_GOT_U15_W",/* name */
431 FALSE, /* partial_inplace */
432 0, /* src_mask */
433 0x007fff00, /* dst_mask */
434 FALSE), /* pcrel_offset */
435 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
436 2, /* rightshift */
437 2, /* size (0 = byte, 1 = short, 2 = long) */
438 16, /* bitsize */
439 FALSE, /* pc_relative */
440 7, /* bitpos */
441 complain_overflow_dont,/* complain_on_overflow */
442 bfd_elf_generic_reloc, /* special_function */
443 "R_C6000_SBR_GOT_L16_W",/* name */
444 FALSE, /* partial_inplace */
445 0, /* src_mask */
446 0x007fff80, /* dst_mask */
447 FALSE), /* pcrel_offset */
448 HOWTO (R_C6000_SBR_GOT_H16_W, /* type */
449 18, /* rightshift */
450 2, /* size (0 = byte, 1 = short, 2 = long) */
451 16, /* bitsize */
452 FALSE, /* pc_relative */
453 7, /* bitpos */
454 complain_overflow_dont,/* complain_on_overflow */
455 bfd_elf_generic_reloc, /* special_function */
456 "R_C6000_SBR_GOT_H16_W",/* name */
457 FALSE, /* partial_inplace */
458 0, /* src_mask */
459 0x007fff80, /* dst_mask */
460 FALSE), /* pcrel_offset */
461 HOWTO (R_C6000_DSBT_INDEX, /* type */
462 0, /* rightshift */
463 2, /* size (0 = byte, 1 = short, 2 = long) */
464 15, /* bitsize */
465 FALSE, /* pc_relative */
466 8, /* bitpos */
467 complain_overflow_unsigned,/* complain_on_overflow */
468 bfd_elf_generic_reloc, /* special_function */
469 "R_C6000_DSBT_INDEX", /* name */
470 FALSE, /* partial_inplace */
471 0, /* src_mask */
472 0x007fff00, /* dst_mask */
473 FALSE), /* pcrel_offset */
474 HOWTO (R_C6000_PREL31, /* type */
475 1, /* rightshift */
476 2, /* size (0 = byte, 1 = short, 2 = long) */
477 31, /* bitsize */
478 TRUE, /* pc_relative */
479 0, /* bitpos */
480 complain_overflow_dont,/* complain_on_overflow */
481 bfd_elf_generic_reloc, /* special_function */
482 "R_C6000_PREL31", /* name */
483 FALSE, /* partial_inplace */
484 0, /* src_mask */
485 0x7fffffff, /* dst_mask */
486 TRUE), /* pcrel_offset */
487 HOWTO (R_C6000_COPY, /* type */
488 0, /* rightshift */
489 2, /* size (0 = byte, 1 = short, 2 = long) */
490 32, /* bitsize */
491 FALSE, /* pc_relative */
492 0, /* bitpos */
493 complain_overflow_dont,/* complain_on_overflow */
494 bfd_elf_generic_reloc, /* special_function */
495 "R_C6000_COPY", /* name */
496 FALSE, /* partial_inplace */
497 0, /* src_mask */
498 0xffffffff, /* dst_mask */
499 FALSE), /* pcrel_offset */
500 HOWTO (R_C6000_JUMP_SLOT, /* type */
501 0, /* rightshift */
502 2, /* size (0 = byte, 1 = short, 2 = long) */
503 32, /* bitsize */
504 FALSE, /* pc_relative */
505 0, /* bitpos */
506 complain_overflow_dont,/* complain_on_overflow */
507 bfd_elf_generic_reloc, /* special_function */
508 "R_C6000_JUMP_SLOT", /* name */
509 FALSE, /* partial_inplace */
510 0, /* src_mask */
511 0xffffffff, /* dst_mask */
512 FALSE), /* pcrel_offset */
513 HOWTO (R_C6000_EHTYPE, /* type */
514 0, /* rightshift */
515 2, /* size (0 = byte, 1 = short, 2 = long) */
516 32, /* bitsize */
517 FALSE, /* pc_relative */
518 0, /* bitpos */
519 complain_overflow_dont,/* complain_on_overflow */
520 bfd_elf_generic_reloc, /* special_function */
521 "R_C6000_EHTYPE", /* name */
522 FALSE, /* partial_inplace */
523 0, /* src_mask */
524 0xffffffff, /* dst_mask */
525 FALSE), /* pcrel_offset */
526 HOWTO (R_C6000_PCR_H16, /* type */
527 16, /* rightshift */
528 2, /* size (0 = byte, 1 = short, 2 = long) */
529 16, /* bitsize */
530 TRUE, /* pc_relative */
531 7, /* bitpos */
532 complain_overflow_dont,/* complain_on_overflow */
533 bfd_elf_generic_reloc, /* special_function */
534 "R_C6000_PCR_H16", /* name */
535 FALSE, /* partial_inplace */
536 0, /* src_mask */
537 0x007fff80, /* dst_mask */
538 TRUE), /* pcrel_offset */
539 HOWTO (R_C6000_PCR_L16, /* type */
540 0, /* rightshift */
541 2, /* size (0 = byte, 1 = short, 2 = long) */
542 16, /* bitsize */
543 TRUE, /* pc_relative */
544 7, /* bitpos */
545 complain_overflow_dont,/* complain_on_overflow */
546 bfd_elf_generic_reloc, /* special_function */
547 "R_C6000_PCR_L16", /* name */
548 FALSE, /* partial_inplace */
549 0, /* src_mask */
550 0x007fff80, /* dst_mask */
551 TRUE), /* pcrel_offset */
552 EMPTY_HOWTO (31),
553 EMPTY_HOWTO (32),
554 EMPTY_HOWTO (33),
555 EMPTY_HOWTO (34),
556 EMPTY_HOWTO (35),
557 EMPTY_HOWTO (36),
558 EMPTY_HOWTO (37),
559 EMPTY_HOWTO (38),
560 EMPTY_HOWTO (39),
561 EMPTY_HOWTO (40),
562 EMPTY_HOWTO (41),
563 EMPTY_HOWTO (42),
564 EMPTY_HOWTO (43),
565 EMPTY_HOWTO (44),
566 EMPTY_HOWTO (45),
567 EMPTY_HOWTO (46),
568 EMPTY_HOWTO (47),
569 EMPTY_HOWTO (48),
570 EMPTY_HOWTO (49),
571 EMPTY_HOWTO (50),
572 EMPTY_HOWTO (51),
573 EMPTY_HOWTO (52),
574 EMPTY_HOWTO (53),
575 EMPTY_HOWTO (54),
576 EMPTY_HOWTO (55),
577 EMPTY_HOWTO (56),
578 EMPTY_HOWTO (57),
579 EMPTY_HOWTO (58),
580 EMPTY_HOWTO (59),
581 EMPTY_HOWTO (60),
582 EMPTY_HOWTO (61),
583 EMPTY_HOWTO (62),
584 EMPTY_HOWTO (63),
585 EMPTY_HOWTO (64),
586 EMPTY_HOWTO (65),
587 EMPTY_HOWTO (66),
588 EMPTY_HOWTO (67),
589 EMPTY_HOWTO (68),
590 EMPTY_HOWTO (69),
591 EMPTY_HOWTO (70),
592 EMPTY_HOWTO (71),
593 EMPTY_HOWTO (72),
594 EMPTY_HOWTO (73),
595 EMPTY_HOWTO (74),
596 EMPTY_HOWTO (75),
597 EMPTY_HOWTO (76),
598 EMPTY_HOWTO (77),
599 EMPTY_HOWTO (78),
600 EMPTY_HOWTO (79),
601 EMPTY_HOWTO (80),
602 EMPTY_HOWTO (81),
603 EMPTY_HOWTO (82),
604 EMPTY_HOWTO (83),
605 EMPTY_HOWTO (84),
606 EMPTY_HOWTO (85),
607 EMPTY_HOWTO (86),
608 EMPTY_HOWTO (87),
609 EMPTY_HOWTO (88),
610 EMPTY_HOWTO (89),
611 EMPTY_HOWTO (90),
612 EMPTY_HOWTO (91),
613 EMPTY_HOWTO (92),
614 EMPTY_HOWTO (93),
615 EMPTY_HOWTO (94),
616 EMPTY_HOWTO (95),
617 EMPTY_HOWTO (96),
618 EMPTY_HOWTO (97),
619 EMPTY_HOWTO (98),
620 EMPTY_HOWTO (99),
621 EMPTY_HOWTO (100),
622 EMPTY_HOWTO (101),
623 EMPTY_HOWTO (102),
624 EMPTY_HOWTO (103),
625 EMPTY_HOWTO (104),
626 EMPTY_HOWTO (105),
627 EMPTY_HOWTO (106),
628 EMPTY_HOWTO (107),
629 EMPTY_HOWTO (108),
630 EMPTY_HOWTO (109),
631 EMPTY_HOWTO (110),
632 EMPTY_HOWTO (111),
633 EMPTY_HOWTO (112),
634 EMPTY_HOWTO (113),
635 EMPTY_HOWTO (114),
636 EMPTY_HOWTO (115),
637 EMPTY_HOWTO (116),
638 EMPTY_HOWTO (117),
639 EMPTY_HOWTO (118),
640 EMPTY_HOWTO (119),
641 EMPTY_HOWTO (120),
642 EMPTY_HOWTO (121),
643 EMPTY_HOWTO (122),
644 EMPTY_HOWTO (123),
645 EMPTY_HOWTO (124),
646 EMPTY_HOWTO (125),
647 EMPTY_HOWTO (126),
648 EMPTY_HOWTO (127),
649 EMPTY_HOWTO (128),
650 EMPTY_HOWTO (129),
651 EMPTY_HOWTO (130),
652 EMPTY_HOWTO (131),
653 EMPTY_HOWTO (132),
654 EMPTY_HOWTO (133),
655 EMPTY_HOWTO (134),
656 EMPTY_HOWTO (135),
657 EMPTY_HOWTO (136),
658 EMPTY_HOWTO (137),
659 EMPTY_HOWTO (138),
660 EMPTY_HOWTO (139),
661 EMPTY_HOWTO (140),
662 EMPTY_HOWTO (141),
663 EMPTY_HOWTO (142),
664 EMPTY_HOWTO (143),
665 EMPTY_HOWTO (144),
666 EMPTY_HOWTO (145),
667 EMPTY_HOWTO (146),
668 EMPTY_HOWTO (147),
669 EMPTY_HOWTO (148),
670 EMPTY_HOWTO (149),
671 EMPTY_HOWTO (150),
672 EMPTY_HOWTO (151),
673 EMPTY_HOWTO (152),
674 EMPTY_HOWTO (153),
675 EMPTY_HOWTO (154),
676 EMPTY_HOWTO (155),
677 EMPTY_HOWTO (156),
678 EMPTY_HOWTO (157),
679 EMPTY_HOWTO (158),
680 EMPTY_HOWTO (159),
681 EMPTY_HOWTO (160),
682 EMPTY_HOWTO (161),
683 EMPTY_HOWTO (162),
684 EMPTY_HOWTO (163),
685 EMPTY_HOWTO (164),
686 EMPTY_HOWTO (165),
687 EMPTY_HOWTO (166),
688 EMPTY_HOWTO (167),
689 EMPTY_HOWTO (168),
690 EMPTY_HOWTO (169),
691 EMPTY_HOWTO (170),
692 EMPTY_HOWTO (171),
693 EMPTY_HOWTO (172),
694 EMPTY_HOWTO (173),
695 EMPTY_HOWTO (174),
696 EMPTY_HOWTO (175),
697 EMPTY_HOWTO (176),
698 EMPTY_HOWTO (177),
699 EMPTY_HOWTO (178),
700 EMPTY_HOWTO (179),
701 EMPTY_HOWTO (180),
702 EMPTY_HOWTO (181),
703 EMPTY_HOWTO (182),
704 EMPTY_HOWTO (183),
705 EMPTY_HOWTO (184),
706 EMPTY_HOWTO (185),
707 EMPTY_HOWTO (186),
708 EMPTY_HOWTO (187),
709 EMPTY_HOWTO (188),
710 EMPTY_HOWTO (189),
711 EMPTY_HOWTO (190),
712 EMPTY_HOWTO (191),
713 EMPTY_HOWTO (192),
714 EMPTY_HOWTO (193),
715 EMPTY_HOWTO (194),
716 EMPTY_HOWTO (195),
717 EMPTY_HOWTO (196),
718 EMPTY_HOWTO (197),
719 EMPTY_HOWTO (198),
720 EMPTY_HOWTO (199),
721 EMPTY_HOWTO (200),
722 EMPTY_HOWTO (201),
723 EMPTY_HOWTO (202),
724 EMPTY_HOWTO (203),
725 EMPTY_HOWTO (204),
726 EMPTY_HOWTO (205),
727 EMPTY_HOWTO (206),
728 EMPTY_HOWTO (207),
729 EMPTY_HOWTO (208),
730 EMPTY_HOWTO (209),
731 EMPTY_HOWTO (210),
732 EMPTY_HOWTO (211),
733 EMPTY_HOWTO (212),
734 EMPTY_HOWTO (213),
735 EMPTY_HOWTO (214),
736 EMPTY_HOWTO (215),
737 EMPTY_HOWTO (216),
738 EMPTY_HOWTO (217),
739 EMPTY_HOWTO (218),
740 EMPTY_HOWTO (219),
741 EMPTY_HOWTO (220),
742 EMPTY_HOWTO (221),
743 EMPTY_HOWTO (222),
744 EMPTY_HOWTO (223),
745 EMPTY_HOWTO (224),
746 EMPTY_HOWTO (225),
747 EMPTY_HOWTO (226),
748 EMPTY_HOWTO (227),
749 EMPTY_HOWTO (228),
750 EMPTY_HOWTO (229),
751 EMPTY_HOWTO (230),
752 EMPTY_HOWTO (231),
753 EMPTY_HOWTO (232),
754 EMPTY_HOWTO (233),
755 EMPTY_HOWTO (234),
756 EMPTY_HOWTO (235),
757 EMPTY_HOWTO (236),
758 EMPTY_HOWTO (237),
759 EMPTY_HOWTO (238),
760 EMPTY_HOWTO (239),
761 EMPTY_HOWTO (240),
762 EMPTY_HOWTO (241),
763 EMPTY_HOWTO (242),
764 EMPTY_HOWTO (243),
765 EMPTY_HOWTO (244),
766 EMPTY_HOWTO (245),
767 EMPTY_HOWTO (246),
768 EMPTY_HOWTO (247),
769 EMPTY_HOWTO (248),
770 EMPTY_HOWTO (249),
771 EMPTY_HOWTO (250),
772 EMPTY_HOWTO (251),
773 EMPTY_HOWTO (252),
774 HOWTO (R_C6000_ALIGN, /* type */
775 0, /* rightshift */
776 0, /* size (0 = byte, 1 = short, 2 = long) */
777 0, /* bitsize */
778 FALSE, /* pc_relative */
779 0, /* bitpos */
780 complain_overflow_dont,/* complain_on_overflow */
781 bfd_elf_generic_reloc, /* special_function */
782 "R_C6000_ALIGN", /* name */
783 FALSE, /* partial_inplace */
784 0, /* src_mask */
785 0, /* dst_mask */
786 FALSE), /* pcrel_offset */
787 HOWTO (R_C6000_FPHEAD, /* type */
788 0, /* rightshift */
789 0, /* size (0 = byte, 1 = short, 2 = long) */
790 0, /* bitsize */
791 FALSE, /* pc_relative */
792 0, /* bitpos */
793 complain_overflow_dont,/* complain_on_overflow */
794 bfd_elf_generic_reloc, /* special_function */
795 "R_C6000_FPHEAD", /* name */
796 FALSE, /* partial_inplace */
797 0, /* src_mask */
798 0, /* dst_mask */
799 FALSE), /* pcrel_offset */
800 HOWTO (R_C6000_NOCMP, /* type */
801 0, /* rightshift */
802 0, /* size (0 = byte, 1 = short, 2 = long) */
803 0, /* bitsize */
804 FALSE, /* pc_relative */
805 0, /* bitpos */
806 complain_overflow_dont,/* complain_on_overflow */
807 bfd_elf_generic_reloc, /* special_function */
808 "R_C6000_NOCMP", /* name */
809 FALSE, /* partial_inplace */
810 0, /* src_mask */
811 0, /* dst_mask */
812 FALSE) /* pcrel_offset */
813 };
814
815 static reloc_howto_type elf32_tic6x_howto_table_rel[] =
816 {
817 HOWTO (R_C6000_NONE, /* type */
818 0, /* rightshift */
819 3, /* size (0 = byte, 1 = short, 2 = long) */
820 0, /* bitsize */
821 FALSE, /* pc_relative */
822 0, /* bitpos */
823 complain_overflow_dont,/* complain_on_overflow */
824 bfd_elf_generic_reloc, /* special_function */
825 "R_C6000_NONE", /* name */
826 TRUE, /* partial_inplace */
827 0, /* src_mask */
828 0, /* dst_mask */
829 FALSE), /* pcrel_offset */
830 HOWTO (R_C6000_ABS32, /* type */
831 0, /* rightshift */
832 2, /* size (0 = byte, 1 = short, 2 = long) */
833 32, /* bitsize */
834 FALSE, /* pc_relative */
835 0, /* bitpos */
836 complain_overflow_dont,/* complain_on_overflow */
837 bfd_elf_generic_reloc, /* special_function */
838 "R_C6000_ABS32", /* name */
839 TRUE, /* partial_inplace */
840 0xffffffff, /* src_mask */
841 0xffffffff, /* dst_mask */
842 FALSE), /* pcrel_offset */
843 HOWTO (R_C6000_ABS16, /* type */
844 0, /* rightshift */
845 1, /* size (0 = byte, 1 = short, 2 = long) */
846 16, /* bitsize */
847 FALSE, /* pc_relative */
848 0, /* bitpos */
849 complain_overflow_bitfield,/* complain_on_overflow */
850 bfd_elf_generic_reloc, /* special_function */
851 "R_C6000_ABS16", /* name */
852 TRUE, /* partial_inplace */
853 0x0000ffff, /* src_mask */
854 0x0000ffff, /* dst_mask */
855 FALSE), /* pcrel_offset */
856 HOWTO (R_C6000_ABS8, /* type */
857 0, /* rightshift */
858 0, /* size (0 = byte, 1 = short, 2 = long) */
859 8, /* bitsize */
860 FALSE, /* pc_relative */
861 0, /* bitpos */
862 complain_overflow_bitfield,/* complain_on_overflow */
863 bfd_elf_generic_reloc, /* special_function */
864 "R_C6000_ABS8", /* name */
865 TRUE, /* partial_inplace */
866 0x000000ff, /* src_mask */
867 0x000000ff, /* dst_mask */
868 FALSE), /* pcrel_offset */
869 HOWTO (R_C6000_PCR_S21, /* type */
870 2, /* rightshift */
871 2, /* size (0 = byte, 1 = short, 2 = long) */
872 21, /* bitsize */
873 TRUE, /* pc_relative */
874 7, /* bitpos */
875 complain_overflow_signed,/* complain_on_overflow */
876 bfd_elf_generic_reloc, /* special_function */
877 "R_C6000_PCR_S21", /* name */
878 TRUE, /* partial_inplace */
879 0x0fffff80, /* src_mask */
880 0x0fffff80, /* dst_mask */
881 TRUE), /* pcrel_offset */
882 HOWTO (R_C6000_PCR_S12, /* type */
883 2, /* rightshift */
884 2, /* size (0 = byte, 1 = short, 2 = long) */
885 12, /* bitsize */
886 TRUE, /* pc_relative */
887 16, /* bitpos */
888 complain_overflow_signed,/* complain_on_overflow */
889 bfd_elf_generic_reloc, /* special_function */
890 "R_C6000_PCR_S12", /* name */
891 TRUE, /* partial_inplace */
892 0x0fff0000, /* src_mask */
893 0x0fff0000, /* dst_mask */
894 TRUE), /* pcrel_offset */
895 HOWTO (R_C6000_PCR_S10, /* type */
896 2, /* rightshift */
897 2, /* size (0 = byte, 1 = short, 2 = long) */
898 10, /* bitsize */
899 TRUE, /* pc_relative */
900 13, /* bitpos */
901 complain_overflow_signed,/* complain_on_overflow */
902 bfd_elf_generic_reloc, /* special_function */
903 "R_C6000_PCR_S10", /* name */
904 TRUE, /* partial_inplace */
905 0x007fe000, /* src_mask */
906 0x007fe000, /* dst_mask */
907 TRUE), /* pcrel_offset */
908 HOWTO (R_C6000_PCR_S7, /* type */
909 2, /* rightshift */
910 2, /* size (0 = byte, 1 = short, 2 = long) */
911 7, /* bitsize */
912 TRUE, /* pc_relative */
913 16, /* bitpos */
914 complain_overflow_signed,/* complain_on_overflow */
915 bfd_elf_generic_reloc, /* special_function */
916 "R_C6000_PCR_S7", /* name */
917 TRUE, /* partial_inplace */
918 0x007f0000, /* src_mask */
919 0x007f0000, /* dst_mask */
920 TRUE), /* pcrel_offset */
921 HOWTO (R_C6000_ABS_S16, /* type */
922 0, /* rightshift */
923 2, /* size (0 = byte, 1 = short, 2 = long) */
924 16, /* bitsize */
925 FALSE, /* pc_relative */
926 7, /* bitpos */
927 complain_overflow_signed,/* complain_on_overflow */
928 bfd_elf_generic_reloc, /* special_function */
929 "R_C6000_ABS_S16", /* name */
930 TRUE, /* partial_inplace */
931 0x007fff80, /* src_mask */
932 0x007fff80, /* dst_mask */
933 FALSE), /* pcrel_offset */
934 HOWTO (R_C6000_ABS_L16, /* type */
935 0, /* rightshift */
936 2, /* size (0 = byte, 1 = short, 2 = long) */
937 16, /* bitsize */
938 FALSE, /* pc_relative */
939 7, /* bitpos */
940 complain_overflow_dont,/* complain_on_overflow */
941 bfd_elf_generic_reloc, /* special_function */
942 "R_C6000_ABS_L16", /* name */
943 TRUE, /* partial_inplace */
944 0x007fff80, /* src_mask */
945 0x007fff80, /* dst_mask */
946 FALSE), /* pcrel_offset */
947 EMPTY_HOWTO (R_C6000_ABS_H16),
948 HOWTO (R_C6000_SBR_U15_B, /* type */
949 0, /* rightshift */
950 2, /* size (0 = byte, 1 = short, 2 = long) */
951 15, /* bitsize */
952 FALSE, /* pc_relative */
953 8, /* bitpos */
954 complain_overflow_unsigned,/* complain_on_overflow */
955 bfd_elf_generic_reloc, /* special_function */
956 "R_C6000_SBR_U15_B", /* name */
957 TRUE, /* partial_inplace */
958 0x007fff00, /* src_mask */
959 0x007fff00, /* dst_mask */
960 FALSE), /* pcrel_offset */
961 HOWTO (R_C6000_SBR_U15_H, /* type */
962 1, /* rightshift */
963 2, /* size (0 = byte, 1 = short, 2 = long) */
964 15, /* bitsize */
965 FALSE, /* pc_relative */
966 8, /* bitpos */
967 complain_overflow_unsigned,/* complain_on_overflow */
968 bfd_elf_generic_reloc, /* special_function */
969 "R_C6000_SBR_U15_H", /* name */
970 TRUE, /* partial_inplace */
971 0x007fff00, /* src_mask */
972 0x007fff00, /* dst_mask */
973 FALSE), /* pcrel_offset */
974 HOWTO (R_C6000_SBR_U15_W, /* type */
975 2, /* rightshift */
976 2, /* size (0 = byte, 1 = short, 2 = long) */
977 15, /* bitsize */
978 FALSE, /* pc_relative */
979 8, /* bitpos */
980 complain_overflow_unsigned,/* complain_on_overflow */
981 bfd_elf_generic_reloc, /* special_function */
982 "R_C6000_SBR_U15_W", /* name */
983 TRUE, /* partial_inplace */
984 0x007fff00, /* src_mask */
985 0x007fff00, /* dst_mask */
986 FALSE), /* pcrel_offset */
987 HOWTO (R_C6000_SBR_S16, /* type */
988 0, /* rightshift */
989 2, /* size (0 = byte, 1 = short, 2 = long) */
990 16, /* bitsize */
991 FALSE, /* pc_relative */
992 7, /* bitpos */
993 complain_overflow_signed,/* complain_on_overflow */
994 bfd_elf_generic_reloc, /* special_function */
995 "R_C6000_SBR_S16", /* name */
996 TRUE, /* partial_inplace */
997 0x007fff80, /* src_mask */
998 0x007fff80, /* dst_mask */
999 FALSE), /* pcrel_offset */
1000 HOWTO (R_C6000_SBR_L16_B, /* type */
1001 0, /* rightshift */
1002 2, /* size (0 = byte, 1 = short, 2 = long) */
1003 16, /* bitsize */
1004 FALSE, /* pc_relative */
1005 7, /* bitpos */
1006 complain_overflow_dont,/* complain_on_overflow */
1007 bfd_elf_generic_reloc, /* special_function */
1008 "R_C6000_SBR_L16_B", /* name */
1009 TRUE, /* partial_inplace */
1010 0x007fff80, /* src_mask */
1011 0x007fff80, /* dst_mask */
1012 FALSE), /* pcrel_offset */
1013 HOWTO (R_C6000_SBR_L16_H, /* type */
1014 1, /* rightshift */
1015 2, /* size (0 = byte, 1 = short, 2 = long) */
1016 16, /* bitsize */
1017 FALSE, /* pc_relative */
1018 7, /* bitpos */
1019 complain_overflow_dont,/* complain_on_overflow */
1020 bfd_elf_generic_reloc, /* special_function */
1021 "R_C6000_SBR_L16_H", /* name */
1022 TRUE, /* partial_inplace */
1023 0x007fff80, /* src_mask */
1024 0x007fff80, /* dst_mask */
1025 FALSE), /* pcrel_offset */
1026 HOWTO (R_C6000_SBR_L16_W, /* type */
1027 2, /* rightshift */
1028 2, /* size (0 = byte, 1 = short, 2 = long) */
1029 16, /* bitsize */
1030 FALSE, /* pc_relative */
1031 7, /* bitpos */
1032 complain_overflow_dont,/* complain_on_overflow */
1033 bfd_elf_generic_reloc, /* special_function */
1034 "R_C6000_SBR_L16_W", /* name */
1035 TRUE, /* partial_inplace */
1036 0x007fff80, /* src_mask */
1037 0x007fff80, /* dst_mask */
1038 FALSE), /* pcrel_offset */
1039 EMPTY_HOWTO (R_C6000_SBR_H16_B),
1040 EMPTY_HOWTO (R_C6000_SBR_H16_H),
1041 EMPTY_HOWTO (R_C6000_SBR_H16_W),
1042 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
1043 2, /* rightshift */
1044 2, /* size (0 = byte, 1 = short, 2 = long) */
1045 15, /* bitsize */
1046 FALSE, /* pc_relative */
1047 8, /* bitpos */
1048 complain_overflow_unsigned,/* complain_on_overflow */
1049 bfd_elf_generic_reloc, /* special_function */
1050 "R_C6000_SBR_GOT_U15_W",/* name */
1051 TRUE, /* partial_inplace */
1052 0x007fff00, /* src_mask */
1053 0x007fff00, /* dst_mask */
1054 FALSE), /* pcrel_offset */
1055 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
1056 2, /* rightshift */
1057 2, /* size (0 = byte, 1 = short, 2 = long) */
1058 16, /* bitsize */
1059 FALSE, /* pc_relative */
1060 7, /* bitpos */
1061 complain_overflow_dont,/* complain_on_overflow */
1062 bfd_elf_generic_reloc, /* special_function */
1063 "R_C6000_SBR_GOT_L16_W",/* name */
1064 TRUE, /* partial_inplace */
1065 0x007fff80, /* src_mask */
1066 0x007fff80, /* dst_mask */
1067 FALSE), /* pcrel_offset */
1068 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W),
1069 HOWTO (R_C6000_DSBT_INDEX, /* type */
1070 0, /* rightshift */
1071 2, /* size (0 = byte, 1 = short, 2 = long) */
1072 15, /* bitsize */
1073 FALSE, /* pc_relative */
1074 8, /* bitpos */
1075 complain_overflow_unsigned,/* complain_on_overflow */
1076 bfd_elf_generic_reloc, /* special_function */
1077 "R_C6000_DSBT_INDEX", /* name */
1078 TRUE, /* partial_inplace */
1079 0, /* src_mask */
1080 0x007fff00, /* dst_mask */
1081 FALSE), /* pcrel_offset */
1082 HOWTO (R_C6000_PREL31, /* type */
1083 1, /* rightshift */
1084 2, /* size (0 = byte, 1 = short, 2 = long) */
1085 31, /* bitsize */
1086 TRUE, /* pc_relative */
1087 0, /* bitpos */
1088 complain_overflow_dont,/* complain_on_overflow */
1089 bfd_elf_generic_reloc, /* special_function */
1090 "R_C6000_PREL31", /* name */
1091 TRUE, /* partial_inplace */
1092 0, /* src_mask */
1093 0x7fffffff, /* dst_mask */
1094 TRUE), /* pcrel_offset */
1095 HOWTO (R_C6000_COPY, /* type */
1096 0, /* rightshift */
1097 2, /* size (0 = byte, 1 = short, 2 = long) */
1098 32, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont,/* complain_on_overflow */
1102 bfd_elf_generic_reloc, /* special_function */
1103 "R_C6000_COPY", /* name */
1104 TRUE, /* partial_inplace */
1105 0, /* src_mask */
1106 0xffffffff, /* dst_mask */
1107 FALSE), /* pcrel_offset */
1108 HOWTO (R_C6000_JUMP_SLOT, /* type */
1109 0, /* rightshift */
1110 2, /* size (0 = byte, 1 = short, 2 = long) */
1111 32, /* bitsize */
1112 FALSE, /* pc_relative */
1113 0, /* bitpos */
1114 complain_overflow_dont,/* complain_on_overflow */
1115 bfd_elf_generic_reloc, /* special_function */
1116 "R_C6000_JUMP_SLOT", /* name */
1117 FALSE, /* partial_inplace */
1118 0, /* src_mask */
1119 0xffffffff, /* dst_mask */
1120 FALSE), /* pcrel_offset */
1121 HOWTO (R_C6000_EHTYPE, /* type */
1122 0, /* rightshift */
1123 2, /* size (0 = byte, 1 = short, 2 = long) */
1124 32, /* bitsize */
1125 FALSE, /* pc_relative */
1126 0, /* bitpos */
1127 complain_overflow_dont,/* complain_on_overflow */
1128 bfd_elf_generic_reloc, /* special_function */
1129 "R_C6000_EHTYPE", /* name */
1130 FALSE, /* partial_inplace */
1131 0, /* src_mask */
1132 0xffffffff, /* dst_mask */
1133 FALSE), /* pcrel_offset */
1134 EMPTY_HOWTO (R_C6000_PCR_H16),
1135 EMPTY_HOWTO (R_C6000_PCR_L16),
1136 EMPTY_HOWTO (31),
1137 EMPTY_HOWTO (32),
1138 EMPTY_HOWTO (33),
1139 EMPTY_HOWTO (34),
1140 EMPTY_HOWTO (35),
1141 EMPTY_HOWTO (36),
1142 EMPTY_HOWTO (37),
1143 EMPTY_HOWTO (38),
1144 EMPTY_HOWTO (39),
1145 EMPTY_HOWTO (40),
1146 EMPTY_HOWTO (41),
1147 EMPTY_HOWTO (42),
1148 EMPTY_HOWTO (43),
1149 EMPTY_HOWTO (44),
1150 EMPTY_HOWTO (45),
1151 EMPTY_HOWTO (46),
1152 EMPTY_HOWTO (47),
1153 EMPTY_HOWTO (48),
1154 EMPTY_HOWTO (49),
1155 EMPTY_HOWTO (50),
1156 EMPTY_HOWTO (51),
1157 EMPTY_HOWTO (52),
1158 EMPTY_HOWTO (53),
1159 EMPTY_HOWTO (54),
1160 EMPTY_HOWTO (55),
1161 EMPTY_HOWTO (56),
1162 EMPTY_HOWTO (57),
1163 EMPTY_HOWTO (58),
1164 EMPTY_HOWTO (59),
1165 EMPTY_HOWTO (60),
1166 EMPTY_HOWTO (61),
1167 EMPTY_HOWTO (62),
1168 EMPTY_HOWTO (63),
1169 EMPTY_HOWTO (64),
1170 EMPTY_HOWTO (65),
1171 EMPTY_HOWTO (66),
1172 EMPTY_HOWTO (67),
1173 EMPTY_HOWTO (68),
1174 EMPTY_HOWTO (69),
1175 EMPTY_HOWTO (70),
1176 EMPTY_HOWTO (71),
1177 EMPTY_HOWTO (72),
1178 EMPTY_HOWTO (73),
1179 EMPTY_HOWTO (74),
1180 EMPTY_HOWTO (75),
1181 EMPTY_HOWTO (76),
1182 EMPTY_HOWTO (77),
1183 EMPTY_HOWTO (78),
1184 EMPTY_HOWTO (79),
1185 EMPTY_HOWTO (80),
1186 EMPTY_HOWTO (81),
1187 EMPTY_HOWTO (82),
1188 EMPTY_HOWTO (83),
1189 EMPTY_HOWTO (84),
1190 EMPTY_HOWTO (85),
1191 EMPTY_HOWTO (86),
1192 EMPTY_HOWTO (87),
1193 EMPTY_HOWTO (88),
1194 EMPTY_HOWTO (89),
1195 EMPTY_HOWTO (90),
1196 EMPTY_HOWTO (91),
1197 EMPTY_HOWTO (92),
1198 EMPTY_HOWTO (93),
1199 EMPTY_HOWTO (94),
1200 EMPTY_HOWTO (95),
1201 EMPTY_HOWTO (96),
1202 EMPTY_HOWTO (97),
1203 EMPTY_HOWTO (98),
1204 EMPTY_HOWTO (99),
1205 EMPTY_HOWTO (100),
1206 EMPTY_HOWTO (101),
1207 EMPTY_HOWTO (102),
1208 EMPTY_HOWTO (103),
1209 EMPTY_HOWTO (104),
1210 EMPTY_HOWTO (105),
1211 EMPTY_HOWTO (106),
1212 EMPTY_HOWTO (107),
1213 EMPTY_HOWTO (108),
1214 EMPTY_HOWTO (109),
1215 EMPTY_HOWTO (110),
1216 EMPTY_HOWTO (111),
1217 EMPTY_HOWTO (112),
1218 EMPTY_HOWTO (113),
1219 EMPTY_HOWTO (114),
1220 EMPTY_HOWTO (115),
1221 EMPTY_HOWTO (116),
1222 EMPTY_HOWTO (117),
1223 EMPTY_HOWTO (118),
1224 EMPTY_HOWTO (119),
1225 EMPTY_HOWTO (120),
1226 EMPTY_HOWTO (121),
1227 EMPTY_HOWTO (122),
1228 EMPTY_HOWTO (123),
1229 EMPTY_HOWTO (124),
1230 EMPTY_HOWTO (125),
1231 EMPTY_HOWTO (126),
1232 EMPTY_HOWTO (127),
1233 EMPTY_HOWTO (128),
1234 EMPTY_HOWTO (129),
1235 EMPTY_HOWTO (130),
1236 EMPTY_HOWTO (131),
1237 EMPTY_HOWTO (132),
1238 EMPTY_HOWTO (133),
1239 EMPTY_HOWTO (134),
1240 EMPTY_HOWTO (135),
1241 EMPTY_HOWTO (136),
1242 EMPTY_HOWTO (137),
1243 EMPTY_HOWTO (138),
1244 EMPTY_HOWTO (139),
1245 EMPTY_HOWTO (140),
1246 EMPTY_HOWTO (141),
1247 EMPTY_HOWTO (142),
1248 EMPTY_HOWTO (143),
1249 EMPTY_HOWTO (144),
1250 EMPTY_HOWTO (145),
1251 EMPTY_HOWTO (146),
1252 EMPTY_HOWTO (147),
1253 EMPTY_HOWTO (148),
1254 EMPTY_HOWTO (149),
1255 EMPTY_HOWTO (150),
1256 EMPTY_HOWTO (151),
1257 EMPTY_HOWTO (152),
1258 EMPTY_HOWTO (153),
1259 EMPTY_HOWTO (154),
1260 EMPTY_HOWTO (155),
1261 EMPTY_HOWTO (156),
1262 EMPTY_HOWTO (157),
1263 EMPTY_HOWTO (158),
1264 EMPTY_HOWTO (159),
1265 EMPTY_HOWTO (160),
1266 EMPTY_HOWTO (161),
1267 EMPTY_HOWTO (162),
1268 EMPTY_HOWTO (163),
1269 EMPTY_HOWTO (164),
1270 EMPTY_HOWTO (165),
1271 EMPTY_HOWTO (166),
1272 EMPTY_HOWTO (167),
1273 EMPTY_HOWTO (168),
1274 EMPTY_HOWTO (169),
1275 EMPTY_HOWTO (170),
1276 EMPTY_HOWTO (171),
1277 EMPTY_HOWTO (172),
1278 EMPTY_HOWTO (173),
1279 EMPTY_HOWTO (174),
1280 EMPTY_HOWTO (175),
1281 EMPTY_HOWTO (176),
1282 EMPTY_HOWTO (177),
1283 EMPTY_HOWTO (178),
1284 EMPTY_HOWTO (179),
1285 EMPTY_HOWTO (180),
1286 EMPTY_HOWTO (181),
1287 EMPTY_HOWTO (182),
1288 EMPTY_HOWTO (183),
1289 EMPTY_HOWTO (184),
1290 EMPTY_HOWTO (185),
1291 EMPTY_HOWTO (186),
1292 EMPTY_HOWTO (187),
1293 EMPTY_HOWTO (188),
1294 EMPTY_HOWTO (189),
1295 EMPTY_HOWTO (190),
1296 EMPTY_HOWTO (191),
1297 EMPTY_HOWTO (192),
1298 EMPTY_HOWTO (193),
1299 EMPTY_HOWTO (194),
1300 EMPTY_HOWTO (195),
1301 EMPTY_HOWTO (196),
1302 EMPTY_HOWTO (197),
1303 EMPTY_HOWTO (198),
1304 EMPTY_HOWTO (199),
1305 EMPTY_HOWTO (200),
1306 EMPTY_HOWTO (201),
1307 EMPTY_HOWTO (202),
1308 EMPTY_HOWTO (203),
1309 EMPTY_HOWTO (204),
1310 EMPTY_HOWTO (205),
1311 EMPTY_HOWTO (206),
1312 EMPTY_HOWTO (207),
1313 EMPTY_HOWTO (208),
1314 EMPTY_HOWTO (209),
1315 EMPTY_HOWTO (210),
1316 EMPTY_HOWTO (211),
1317 EMPTY_HOWTO (212),
1318 EMPTY_HOWTO (213),
1319 EMPTY_HOWTO (214),
1320 EMPTY_HOWTO (215),
1321 EMPTY_HOWTO (216),
1322 EMPTY_HOWTO (217),
1323 EMPTY_HOWTO (218),
1324 EMPTY_HOWTO (219),
1325 EMPTY_HOWTO (220),
1326 EMPTY_HOWTO (221),
1327 EMPTY_HOWTO (222),
1328 EMPTY_HOWTO (223),
1329 EMPTY_HOWTO (224),
1330 EMPTY_HOWTO (225),
1331 EMPTY_HOWTO (226),
1332 EMPTY_HOWTO (227),
1333 EMPTY_HOWTO (228),
1334 EMPTY_HOWTO (229),
1335 EMPTY_HOWTO (230),
1336 EMPTY_HOWTO (231),
1337 EMPTY_HOWTO (232),
1338 EMPTY_HOWTO (233),
1339 EMPTY_HOWTO (234),
1340 EMPTY_HOWTO (235),
1341 EMPTY_HOWTO (236),
1342 EMPTY_HOWTO (237),
1343 EMPTY_HOWTO (238),
1344 EMPTY_HOWTO (239),
1345 EMPTY_HOWTO (240),
1346 EMPTY_HOWTO (241),
1347 EMPTY_HOWTO (242),
1348 EMPTY_HOWTO (243),
1349 EMPTY_HOWTO (244),
1350 EMPTY_HOWTO (245),
1351 EMPTY_HOWTO (246),
1352 EMPTY_HOWTO (247),
1353 EMPTY_HOWTO (248),
1354 EMPTY_HOWTO (249),
1355 EMPTY_HOWTO (250),
1356 EMPTY_HOWTO (251),
1357 EMPTY_HOWTO (252),
1358 HOWTO (R_C6000_ALIGN, /* type */
1359 0, /* rightshift */
1360 0, /* size (0 = byte, 1 = short, 2 = long) */
1361 0, /* bitsize */
1362 FALSE, /* pc_relative */
1363 0, /* bitpos */
1364 complain_overflow_dont,/* complain_on_overflow */
1365 bfd_elf_generic_reloc, /* special_function */
1366 "R_C6000_ALIGN", /* name */
1367 TRUE, /* partial_inplace */
1368 0, /* src_mask */
1369 0, /* dst_mask */
1370 FALSE), /* pcrel_offset */
1371 HOWTO (R_C6000_FPHEAD, /* type */
1372 0, /* rightshift */
1373 0, /* size (0 = byte, 1 = short, 2 = long) */
1374 0, /* bitsize */
1375 FALSE, /* pc_relative */
1376 0, /* bitpos */
1377 complain_overflow_dont,/* complain_on_overflow */
1378 bfd_elf_generic_reloc, /* special_function */
1379 "R_C6000_FPHEAD", /* name */
1380 TRUE, /* partial_inplace */
1381 0, /* src_mask */
1382 0, /* dst_mask */
1383 FALSE), /* pcrel_offset */
1384 HOWTO (R_C6000_NOCMP, /* type */
1385 0, /* rightshift */
1386 0, /* size (0 = byte, 1 = short, 2 = long) */
1387 0, /* bitsize */
1388 FALSE, /* pc_relative */
1389 0, /* bitpos */
1390 complain_overflow_dont,/* complain_on_overflow */
1391 bfd_elf_generic_reloc, /* special_function */
1392 "R_C6000_NOCMP", /* name */
1393 TRUE, /* partial_inplace */
1394 0, /* src_mask */
1395 0, /* dst_mask */
1396 FALSE) /* pcrel_offset */
1397 };
1398
1399 /* Map BFD relocations to ELF relocations. */
1400
1401 typedef struct
1402 {
1403 bfd_reloc_code_real_type bfd_reloc_val;
1404 enum elf_tic6x_reloc_type elf_reloc_val;
1405 } tic6x_reloc_map;
1406
1407 static const tic6x_reloc_map elf32_tic6x_reloc_map[] =
1408 {
1409 { BFD_RELOC_NONE, R_C6000_NONE },
1410 { BFD_RELOC_32, R_C6000_ABS32 },
1411 { BFD_RELOC_16, R_C6000_ABS16 },
1412 { BFD_RELOC_8, R_C6000_ABS8 },
1413 { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 },
1414 { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 },
1415 { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 },
1416 { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 },
1417 { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 },
1418 { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 },
1419 { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 },
1420 { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B },
1421 { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H },
1422 { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W },
1423 { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 },
1424 { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B },
1425 { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H },
1426 { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W },
1427 { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B },
1428 { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H },
1429 { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W },
1430 { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W },
1431 { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W },
1432 { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W },
1433 { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX },
1434 { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 },
1435 { BFD_RELOC_C6000_COPY, R_C6000_COPY },
1436 { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT },
1437 { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE },
1438 { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 },
1439 { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 },
1440 { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN },
1441 { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD },
1442 { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP }
1443 };
1444
1445 static reloc_howto_type *
1446 elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
1447 {
1448 unsigned int i;
1449
1450 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++)
1451 if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code)
1452 {
1453 enum elf_tic6x_reloc_type elf_reloc_val;
1454 reloc_howto_type *howto;
1455
1456 elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val;
1457 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1458 howto = &elf32_tic6x_howto_table[elf_reloc_val];
1459 else
1460 howto = &elf32_tic6x_howto_table_rel[elf_reloc_val];
1461
1462 /* Some relocations are RELA-only; do not return them for
1463 REL. */
1464 if (howto->name == NULL)
1465 howto = NULL;
1466
1467 return howto;
1468 }
1469
1470 return NULL;
1471 }
1472
1473 static reloc_howto_type *
1474 elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name)
1475 {
1476 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1477 {
1478 unsigned int i;
1479
1480 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++)
1481 if (elf32_tic6x_howto_table[i].name != NULL
1482 && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0)
1483 return &elf32_tic6x_howto_table[i];
1484 }
1485 else
1486 {
1487 unsigned int i;
1488
1489 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++)
1490 if (elf32_tic6x_howto_table_rel[i].name != NULL
1491 && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0)
1492 return &elf32_tic6x_howto_table_rel[i];
1493 }
1494
1495 return NULL;
1496 }
1497
1498 static bfd_boolean
1499 elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1500 Elf_Internal_Rela *elf_reloc)
1501 {
1502 unsigned int r_type;
1503
1504 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1505 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table))
1506 {
1507 /* xgettext:c-format */
1508 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1509 abfd, r_type);
1510 bfd_set_error (bfd_error_bad_value);
1511 return FALSE;
1512 }
1513
1514 bfd_reloc->howto = &elf32_tic6x_howto_table[r_type];
1515 if (bfd_reloc->howto == NULL || bfd_reloc->howto->name == NULL)
1516 {
1517 /* xgettext:c-format */
1518 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1519 abfd, r_type);
1520 bfd_set_error (bfd_error_bad_value);
1521 return FALSE;
1522 }
1523
1524 return TRUE;
1525 }
1526
1527 static bfd_boolean
1528 elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1529 Elf_Internal_Rela *elf_reloc)
1530 {
1531 unsigned int r_type;
1532
1533 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1534 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel))
1535 {
1536 /* xgettext:c-format */
1537 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1538 abfd, r_type);
1539 bfd_set_error (bfd_error_bad_value);
1540 return FALSE;
1541 }
1542
1543 bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type];
1544 if (bfd_reloc->howto == NULL || bfd_reloc->howto->name == NULL)
1545 {
1546 /* xgettext:c-format */
1547 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1548 abfd, r_type);
1549 bfd_set_error (bfd_error_bad_value);
1550 return FALSE;
1551 }
1552
1553 return TRUE;
1554 }
1555
1556 void
1557 elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p)
1558 {
1559 elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p;
1560 }
1561
1562 /* Create an entry in a C6X ELF linker hash table. */
1563
1564 static struct bfd_hash_entry *
1565 elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry,
1566 struct bfd_hash_table *table,
1567 const char *string)
1568 {
1569 /* Allocate the structure if it has not already been allocated by a
1570 subclass. */
1571 if (entry == NULL)
1572 {
1573 entry = bfd_hash_allocate (table,
1574 sizeof (struct elf32_tic6x_link_hash_entry));
1575 if (entry == NULL)
1576 return entry;
1577 }
1578
1579 /* Call the allocation method of the superclass. */
1580 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1581 if (entry != NULL)
1582 {
1583 struct elf32_tic6x_link_hash_entry *eh;
1584
1585 eh = (struct elf32_tic6x_link_hash_entry *) entry;
1586 eh->dyn_relocs = NULL;
1587 }
1588
1589 return entry;
1590 }
1591
1592 /* Create a C6X ELF linker hash table. */
1593
1594 static struct bfd_link_hash_table *
1595 elf32_tic6x_link_hash_table_create (bfd *abfd)
1596 {
1597 struct elf32_tic6x_link_hash_table *ret;
1598 bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table);
1599
1600 ret = bfd_zmalloc (amt);
1601 if (ret == NULL)
1602 return NULL;
1603
1604 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1605 elf32_tic6x_link_hash_newfunc,
1606 sizeof (struct elf32_tic6x_link_hash_entry),
1607 TIC6X_ELF_DATA))
1608 {
1609 free (ret);
1610 return NULL;
1611 }
1612
1613 ret->obfd = abfd;
1614 ret->elf.is_relocatable_executable = 1;
1615
1616 return &ret->elf.root;
1617 }
1618
1619 static bfd_boolean
1620 elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info)
1621 {
1622 if (bfd_link_pic (info))
1623 {
1624 obj_attribute *out_attr;
1625 out_attr = elf_known_obj_attributes_proc (abfd);
1626 if (out_attr[Tag_ABI_PIC].i == 0)
1627 {
1628 _bfd_error_handler (_("warning: generating a shared library "
1629 "containing non-PIC code"));
1630 }
1631 if (out_attr[Tag_ABI_PID].i == 0)
1632 {
1633 _bfd_error_handler (_("warning: generating a shared library "
1634 "containing non-PID code"));
1635 }
1636 }
1637 /* Invoke the regular ELF backend linker to do all the work. */
1638 if (!bfd_elf_final_link (abfd, info))
1639 return FALSE;
1640
1641 return TRUE;
1642 }
1643
1644 /* Called to pass PARAMS to the backend. We store them in the hash table
1645 associated with INFO. */
1646
1647 void
1648 elf32_tic6x_setup (struct bfd_link_info *info,
1649 struct elf32_tic6x_params *params)
1650 {
1651 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info);
1652 htab->params = *params;
1653 }
1654
1655 /* Determine if we're dealing with a DSBT object. */
1656
1657 static bfd_boolean
1658 elf32_tic6x_using_dsbt (bfd *abfd)
1659 {
1660 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC,
1661 Tag_ABI_DSBT);
1662 }
1663
1664 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
1665 sections in DYNOBJ, and set up shortcuts to them in our hash
1666 table. */
1667
1668 static bfd_boolean
1669 elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
1670 {
1671 struct elf32_tic6x_link_hash_table *htab;
1672 flagword flags;
1673
1674 htab = elf32_tic6x_hash_table (info);
1675 if (htab == NULL)
1676 return FALSE;
1677
1678 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1679 return FALSE;
1680
1681 /* Create .dsbt */
1682 flags = (SEC_ALLOC | SEC_LOAD
1683 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1684 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt",
1685 flags);
1686 if (htab->dsbt == NULL
1687 || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2)
1688 || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5))
1689 return FALSE;
1690
1691 return TRUE;
1692 }
1693
1694 static bfd_boolean
1695 elf32_tic6x_mkobject (bfd *abfd)
1696 {
1697 bfd_boolean ret;
1698
1699 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
1700 TIC6X_ELF_DATA);
1701 if (ret)
1702 elf32_tic6x_set_use_rela_p (abfd, TRUE);
1703 return ret;
1704 }
1705
1706 /* Install relocation RELA into section SRELA, incrementing its
1707 reloc_count. */
1708
1709 static void
1710 elf32_tic6x_install_rela (bfd *output_bfd, asection *srela,
1711 Elf_Internal_Rela *rela)
1712 {
1713 bfd_byte *loc;
1714 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela);
1715 loc = srela->contents + off;
1716 BFD_ASSERT (off < srela->size);
1717 bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
1718 }
1719
1720 /* Create a dynamic reloc against the GOT at offset OFFSET. The contents
1721 of the GOT at this offset have been initialized with the relocation. */
1722
1723 static void
1724 elf32_tic6x_make_got_dynreloc (bfd *output_bfd,
1725 struct elf32_tic6x_link_hash_table *htab,
1726 asection *sym_sec, bfd_vma offset)
1727 {
1728 asection *sgot = htab->elf.sgot;
1729 Elf_Internal_Rela outrel;
1730 int dynindx;
1731
1732 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset;
1733 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
1734 if (sym_sec && sym_sec->output_section
1735 && ! bfd_is_abs_section (sym_sec->output_section)
1736 && ! bfd_is_und_section (sym_sec->output_section))
1737 {
1738 dynindx = elf_section_data (sym_sec->output_section)->dynindx;
1739 outrel.r_addend -= sym_sec->output_section->vma;
1740 }
1741 else
1742 {
1743 dynindx = 0;
1744 }
1745 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32);
1746 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel);
1747 }
1748
1749 /* Finish up dynamic symbol handling. We set the contents of various
1750 dynamic sections here. */
1751
1752 static bfd_boolean
1753 elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd,
1754 struct bfd_link_info *info,
1755 struct elf_link_hash_entry *h,
1756 Elf_Internal_Sym * sym)
1757 {
1758 struct elf32_tic6x_link_hash_table *htab;
1759
1760 htab = elf32_tic6x_hash_table (info);
1761
1762 if (h->plt.offset != (bfd_vma) -1)
1763 {
1764 bfd_vma plt_index;
1765 bfd_vma got_section_offset, got_dp_offset, rela_offset;
1766 Elf_Internal_Rela rela;
1767 bfd_byte *loc;
1768 asection *plt, *gotplt, *relplt;
1769 const struct elf_backend_data *bed;
1770
1771 bed = get_elf_backend_data (output_bfd);
1772
1773 BFD_ASSERT (htab->elf.splt != NULL);
1774 plt = htab->elf.splt;
1775 gotplt = htab->elf.sgotplt;
1776 relplt = htab->elf.srelplt;
1777
1778 /* This symbol has an entry in the procedure linkage table. Set
1779 it up. */
1780
1781 if ((h->dynindx == -1
1782 && !((h->forced_local || bfd_link_executable (info))
1783 && h->def_regular
1784 && h->type == STT_GNU_IFUNC))
1785 || plt == NULL
1786 || gotplt == NULL
1787 || relplt == NULL)
1788 abort ();
1789
1790 /* Get the index in the procedure linkage table which
1791 corresponds to this symbol. This is the index of this symbol
1792 in all the symbols for which we are making plt entries. The
1793 first entry in the procedure linkage table is reserved.
1794
1795 Get the offset into the .got table of the entry that
1796 corresponds to this function. Each .got entry is 4 bytes.
1797 The first three are reserved.
1798
1799 For static executables, we don't reserve anything. */
1800
1801 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1802 got_section_offset = plt_index + bed->got_header_size / 4;
1803 got_dp_offset = got_section_offset + htab->params.dsbt_size;
1804 rela_offset = plt_index * sizeof (Elf32_External_Rela);
1805
1806 got_section_offset *= 4;
1807
1808 /* Fill in the entry in the procedure linkage table. */
1809
1810 /* ldw .d2t2 *+B14($GOT(f)), b2 */
1811 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e,
1812 plt->contents + h->plt.offset);
1813 /* mvk .s2 low(rela_offset), b0 */
1814 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a,
1815 plt->contents + h->plt.offset + 4);
1816 /* mvkh .s2 high(rela_offset), b0 */
1817 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a,
1818 plt->contents + h->plt.offset + 8);
1819 /* nop 2 */
1820 bfd_put_32 (output_bfd, 0x00002000,
1821 plt->contents + h->plt.offset + 12);
1822 /* b .s2 b2 */
1823 bfd_put_32 (output_bfd, 0x00080362,
1824 plt->contents + h->plt.offset + 16);
1825 /* nop 5 */
1826 bfd_put_32 (output_bfd, 0x00008000,
1827 plt->contents + h->plt.offset + 20);
1828
1829 /* Fill in the entry in the global offset table. */
1830 bfd_put_32 (output_bfd,
1831 (plt->output_section->vma + plt->output_offset),
1832 gotplt->contents + got_section_offset);
1833
1834 /* Fill in the entry in the .rel.plt section. */
1835 rela.r_offset = (gotplt->output_section->vma
1836 + gotplt->output_offset
1837 + got_section_offset);
1838 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT);
1839 rela.r_addend = 0;
1840 loc = relplt->contents + rela_offset;
1841 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1842
1843 if (!h->def_regular)
1844 {
1845 /* Mark the symbol as undefined, rather than as defined in
1846 the .plt section. */
1847 sym->st_shndx = SHN_UNDEF;
1848 sym->st_value = 0;
1849 }
1850 }
1851
1852 if (h->got.offset != (bfd_vma) -1)
1853 {
1854 asection *sgot;
1855 asection *srela;
1856
1857 /* This symbol has an entry in the global offset table.
1858 Set it up. */
1859
1860 sgot = htab->elf.sgot;
1861 srela = htab->elf.srelgot;
1862 BFD_ASSERT (sgot != NULL && srela != NULL);
1863
1864 /* If this is a -Bsymbolic link, and the symbol is defined
1865 locally, we just want to emit a RELATIVE reloc. Likewise if
1866 the symbol was forced to be local because of a version file.
1867 The entry in the global offset table will already have been
1868 initialized in the relocate_section function. */
1869 if (bfd_link_pic (info)
1870 && (SYMBOLIC_BIND (info, h)
1871 || h->dynindx == -1 || h->forced_local) && h->def_regular)
1872 {
1873 asection *s = h->root.u.def.section;
1874 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s,
1875 h->got.offset & ~(bfd_vma) 1);
1876 }
1877 else
1878 {
1879 Elf_Internal_Rela outrel;
1880 bfd_put_32 (output_bfd, (bfd_vma) 0,
1881 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
1882 outrel.r_offset = (sgot->output_section->vma
1883 + sgot->output_offset
1884 + (h->got.offset & ~(bfd_vma) 1));
1885 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32);
1886 outrel.r_addend = 0;
1887
1888 elf32_tic6x_install_rela (output_bfd, srela, &outrel);
1889 }
1890 }
1891
1892 if (h->needs_copy)
1893 {
1894 Elf_Internal_Rela rel;
1895 asection *s;
1896
1897 /* This symbol needs a copy reloc. Set it up. */
1898
1899 if (h->dynindx == -1
1900 || (h->root.type != bfd_link_hash_defined
1901 && h->root.type != bfd_link_hash_defweak)
1902 || htab->elf.srelbss == NULL
1903 || htab->elf.sreldynrelro == NULL)
1904 abort ();
1905
1906 rel.r_offset = (h->root.u.def.value
1907 + h->root.u.def.section->output_section->vma
1908 + h->root.u.def.section->output_offset);
1909 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY);
1910 rel.r_addend = 0;
1911 if (h->root.u.def.section == htab->elf.sdynrelro)
1912 s = htab->elf.sreldynrelro;
1913 else
1914 s = htab->elf.srelbss;
1915
1916 elf32_tic6x_install_rela (output_bfd, s, &rel);
1917 }
1918
1919 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1920 if (h == elf_hash_table (info)->hdynamic
1921 || h == elf_hash_table (info)->hgot)
1922 sym->st_shndx = SHN_ABS;
1923
1924 return TRUE;
1925 }
1926
1927 /* Unwinding tables are not referenced directly. This pass marks them as
1928 required if the corresponding code section is marked. */
1929
1930 static bfd_boolean
1931 elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info,
1932 elf_gc_mark_hook_fn gc_mark_hook)
1933 {
1934 bfd *sub;
1935 Elf_Internal_Shdr **elf_shdrp;
1936 bfd_boolean again;
1937
1938 _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook);
1939
1940 /* Marking EH data may cause additional code sections to be marked,
1941 requiring multiple passes. */
1942 again = TRUE;
1943 while (again)
1944 {
1945 again = FALSE;
1946 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
1947 {
1948 asection *o;
1949
1950 if (! is_tic6x_elf (sub))
1951 continue;
1952
1953 elf_shdrp = elf_elfsections (sub);
1954 for (o = sub->sections; o != NULL; o = o->next)
1955 {
1956 Elf_Internal_Shdr *hdr;
1957
1958 hdr = &elf_section_data (o)->this_hdr;
1959 if (hdr->sh_type == SHT_C6000_UNWIND
1960 && hdr->sh_link
1961 && hdr->sh_link < elf_numsections (sub)
1962 && !o->gc_mark
1963 && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark)
1964 {
1965 again = TRUE;
1966 if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
1967 return FALSE;
1968 }
1969 }
1970 }
1971 }
1972
1973 return TRUE;
1974 }
1975
1976 /* Return TRUE if this is an unwinding table index. */
1977
1978 static bfd_boolean
1979 is_tic6x_elf_unwind_section_name (const char *name)
1980 {
1981 return (CONST_STRNEQ (name, ELF_STRING_C6000_unwind)
1982 || CONST_STRNEQ (name, ELF_STRING_C6000_unwind_once));
1983 }
1984
1985
1986 /* Set the type and flags for an unwinding index table. We do this by
1987 the section name, which is a hack, but ought to work. */
1988
1989 static bfd_boolean
1990 elf32_tic6x_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1991 Elf_Internal_Shdr *hdr, asection *sec)
1992 {
1993 const char * name;
1994
1995 name = bfd_get_section_name (abfd, sec);
1996
1997 if (is_tic6x_elf_unwind_section_name (name))
1998 {
1999 hdr->sh_type = SHT_C6000_UNWIND;
2000 hdr->sh_flags |= SHF_LINK_ORDER;
2001 }
2002
2003 return TRUE;
2004 }
2005
2006 /* Find dynamic relocs for H that apply to read-only sections. */
2007
2008 static asection *
2009 readonly_dynrelocs (struct elf_link_hash_entry *h)
2010 {
2011 struct elf_dyn_relocs *p;
2012 struct elf32_tic6x_link_hash_entry *eh
2013 = (struct elf32_tic6x_link_hash_entry *) h;
2014
2015 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2016 {
2017 asection *s = p->sec->output_section;
2018
2019 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2020 return p->sec;
2021 }
2022 return NULL;
2023 }
2024
2025 /* Adjust a symbol defined by a dynamic object and referenced by a
2026 regular object. The current definition is in some section of the
2027 dynamic object, but we're not including those sections. We have to
2028 change the definition to something the rest of the link can
2029 understand. */
2030
2031 static bfd_boolean
2032 elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info,
2033 struct elf_link_hash_entry *h)
2034 {
2035 struct elf32_tic6x_link_hash_table *htab;
2036 bfd *dynobj;
2037 asection *s, *srel;
2038
2039 dynobj = elf_hash_table (info)->dynobj;
2040
2041 /* Make sure we know what is going on here. */
2042 BFD_ASSERT (dynobj != NULL
2043 && (h->needs_plt
2044 || h->is_weakalias
2045 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
2046
2047 /* If this is a function, put it in the procedure linkage table. We
2048 will fill in the contents of the procedure linkage table later,
2049 when we know the address of the .got section. */
2050 if (h->type == STT_FUNC
2051 || h->needs_plt)
2052 {
2053 if (h->plt.refcount <= 0
2054 || SYMBOL_CALLS_LOCAL (info, h)
2055 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2056 && h->root.type == bfd_link_hash_undefweak))
2057 {
2058 /* This case can occur if we saw a PLT32 reloc in an input
2059 file, but the symbol was never referred to by a dynamic
2060 object, or if all references were garbage collected. In
2061 such a case, we don't actually need to build a procedure
2062 linkage table, and we can just do a PC32 reloc instead. */
2063 h->plt.offset = (bfd_vma) -1;
2064 h->needs_plt = 0;
2065 }
2066
2067 return TRUE;
2068 }
2069
2070 /* If this is a weak symbol, and there is a real definition, the
2071 processor independent code will have arranged for us to see the
2072 real definition first, and we can just use the same value. */
2073 if (h->is_weakalias)
2074 {
2075 struct elf_link_hash_entry *def = weakdef (h);
2076 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2077 h->root.u.def.section = def->root.u.def.section;
2078 h->root.u.def.value = def->root.u.def.value;
2079 h->non_got_ref = def->non_got_ref;
2080 return TRUE;
2081 }
2082
2083 /* This is a reference to a symbol defined by a dynamic object which
2084 is not a function. */
2085
2086 /* If we are creating a shared library, we must presume that the
2087 only references to the symbol are via the global offset table.
2088 For such cases we need not do anything here; the relocations will
2089 be handled correctly by relocate_section. */
2090 if (bfd_link_pic (info))
2091 return TRUE;
2092
2093 /* If there are no references to this symbol that do not use the
2094 GOT, we don't need to generate a copy reloc. */
2095 if (!h->non_got_ref)
2096 return TRUE;
2097
2098 /* If -z nocopyreloc was given, we won't generate them either. */
2099 if (info->nocopyreloc)
2100 {
2101 h->non_got_ref = 0;
2102 return TRUE;
2103 }
2104
2105 htab = elf32_tic6x_hash_table (info);
2106 if (htab == NULL)
2107 return FALSE;
2108
2109 /* We must allocate the symbol in our .dynbss section, which will
2110 become part of the .bss section of the executable. There will be
2111 an entry for this symbol in the .dynsym section. The dynamic
2112 object will contain position independent code, so all references
2113 from the dynamic object to this symbol will go through the global
2114 offset table. The dynamic linker will use the .dynsym entry to
2115 determine the address it must put in the global offset table, so
2116 both the dynamic object and the regular object will refer to the
2117 same memory location for the variable. */
2118
2119 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2120 copy the initial value out of the dynamic object and into the
2121 runtime process image. */
2122 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2123 {
2124 s = htab->elf.sdynrelro;
2125 srel = htab->elf.sreldynrelro;
2126 }
2127 else
2128 {
2129 s = htab->elf.sdynbss;
2130 srel = htab->elf.srelbss;
2131 }
2132 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2133 {
2134 srel->size += sizeof (Elf32_External_Rela);
2135 h->needs_copy = 1;
2136 }
2137
2138 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2139 }
2140
2141 static bfd_boolean
2142 elf32_tic6x_new_section_hook (bfd *abfd, asection *sec)
2143 {
2144 bfd_boolean ret;
2145
2146 /* Allocate target specific section data. */
2147 if (!sec->used_by_bfd)
2148 {
2149 _tic6x_elf_section_data *sdata;
2150 bfd_size_type amt = sizeof (*sdata);
2151
2152 sdata = (_tic6x_elf_section_data *) bfd_zalloc (abfd, amt);
2153 if (sdata == NULL)
2154 return FALSE;
2155 sec->used_by_bfd = sdata;
2156 }
2157
2158 ret = _bfd_elf_new_section_hook (abfd, sec);
2159 sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p;
2160
2161 return ret;
2162 }
2163
2164 /* Return true if relocation REL against section SEC is a REL rather
2165 than RELA relocation. RELOCS is the first relocation in the
2166 section and ABFD is the bfd that contains SEC. */
2167
2168 static bfd_boolean
2169 elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec,
2170 const Elf_Internal_Rela *relocs,
2171 const Elf_Internal_Rela *rel)
2172 {
2173 Elf_Internal_Shdr *rel_hdr;
2174 const struct elf_backend_data *bed;
2175
2176 /* To determine which flavor of relocation this is, we depend on the
2177 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
2178 rel_hdr = elf_section_data (sec)->rel.hdr;
2179 if (rel_hdr == NULL)
2180 return FALSE;
2181 bed = get_elf_backend_data (abfd);
2182 return ((size_t) (rel - relocs)
2183 < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel);
2184 }
2185
2186 /* We need dynamic symbols for every section, since segments can
2187 relocate independently. */
2188 static bfd_boolean
2189 elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2190 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2191 asection *p)
2192 {
2193 switch (elf_section_data (p)->this_hdr.sh_type)
2194 {
2195 case SHT_PROGBITS:
2196 case SHT_NOBITS:
2197 /* If sh_type is yet undecided, assume it could be
2198 SHT_PROGBITS/SHT_NOBITS. */
2199 case SHT_NULL:
2200 return FALSE;
2201
2202 /* There shouldn't be section relative relocations
2203 against any other section. */
2204 default:
2205 return TRUE;
2206 }
2207 }
2208
2209 static bfd_boolean
2210 elf32_tic6x_relocate_section (bfd *output_bfd,
2211 struct bfd_link_info *info,
2212 bfd *input_bfd,
2213 asection *input_section,
2214 bfd_byte *contents,
2215 Elf_Internal_Rela *relocs,
2216 Elf_Internal_Sym *local_syms,
2217 asection **local_sections)
2218 {
2219 struct elf32_tic6x_link_hash_table *htab;
2220 Elf_Internal_Shdr *symtab_hdr;
2221 struct elf_link_hash_entry **sym_hashes;
2222 bfd_vma *local_got_offsets;
2223 Elf_Internal_Rela *rel;
2224 Elf_Internal_Rela *relend;
2225 bfd_boolean ok = TRUE;
2226
2227 htab = elf32_tic6x_hash_table (info);
2228 symtab_hdr = & elf_symtab_hdr (input_bfd);
2229 sym_hashes = elf_sym_hashes (input_bfd);
2230 local_got_offsets = elf_local_got_offsets (input_bfd);
2231
2232 relend = relocs + input_section->reloc_count;
2233
2234 for (rel = relocs; rel < relend; rel ++)
2235 {
2236 int r_type;
2237 unsigned long r_symndx;
2238 arelent bfd_reloc;
2239 reloc_howto_type *howto;
2240 Elf_Internal_Sym *sym;
2241 asection *sec;
2242 struct elf_link_hash_entry *h;
2243 bfd_vma off, off2, relocation;
2244 bfd_boolean unresolved_reloc;
2245 bfd_reloc_status_type r;
2246 struct bfd_link_hash_entry *sbh;
2247 bfd_boolean is_rel;
2248 bfd_boolean res;
2249
2250 r_type = ELF32_R_TYPE (rel->r_info);
2251 r_symndx = ELF32_R_SYM (rel->r_info);
2252
2253 is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section,
2254 relocs, rel);
2255
2256 if (is_rel)
2257 res = elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel);
2258 else
2259 res = elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel);
2260
2261 if (!res || (howto = bfd_reloc.howto) == NULL)
2262 {
2263 bfd_set_error (bfd_error_bad_value);
2264 return FALSE;
2265 }
2266
2267 h = NULL;
2268 sym = NULL;
2269 sec = NULL;
2270 unresolved_reloc = FALSE;
2271
2272 if (r_symndx < symtab_hdr->sh_info)
2273 {
2274 sym = local_syms + r_symndx;
2275 sec = local_sections[r_symndx];
2276 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2277 }
2278 else
2279 {
2280 bfd_boolean warned, ignored;
2281
2282 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2283 r_symndx, symtab_hdr, sym_hashes,
2284 h, sec, relocation,
2285 unresolved_reloc, warned, ignored);
2286 }
2287
2288 if (sec != NULL && discarded_section (sec))
2289 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2290 rel, 1, relend, howto, 0, contents);
2291
2292 if (bfd_link_relocatable (info))
2293 {
2294 if (is_rel
2295 && sym != NULL
2296 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2297 {
2298 rel->r_addend = 0;
2299 relocation = sec->output_offset + sym->st_value;
2300 r = _bfd_relocate_contents (howto, input_bfd, relocation,
2301 contents + rel->r_offset);
2302 goto done_reloc;
2303 }
2304 continue;
2305 }
2306
2307 switch (r_type)
2308 {
2309 case R_C6000_NONE:
2310 case R_C6000_ALIGN:
2311 case R_C6000_FPHEAD:
2312 case R_C6000_NOCMP:
2313 /* No action needed. */
2314 continue;
2315
2316 case R_C6000_PCR_S21:
2317 /* A branch to an undefined weak symbol is turned into a
2318 "b .s2 B3" instruction if the existing insn is of the
2319 form "b .s2 symbol". */
2320 if (h ? h->root.type == bfd_link_hash_undefweak
2321 && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1)
2322 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2323 {
2324 unsigned long oldval;
2325 oldval = bfd_get_32 (input_bfd, contents + rel->r_offset);
2326
2327 if ((oldval & 0x7e) == 0x12)
2328 {
2329 oldval &= 0xF0000001;
2330 bfd_put_32 (input_bfd, oldval | 0x000c0362,
2331 contents + rel->r_offset);
2332 r = bfd_reloc_ok;
2333 goto done_reloc;
2334 }
2335 }
2336 /* Fall through. */
2337
2338 case R_C6000_PCR_S12:
2339 case R_C6000_PCR_S10:
2340 case R_C6000_PCR_S7:
2341 if (h != NULL
2342 && h->plt.offset != (bfd_vma) -1
2343 && htab->elf.splt != NULL)
2344 {
2345 relocation = (htab->elf.splt->output_section->vma
2346 + htab->elf.splt->output_offset
2347 + h->plt.offset);
2348 }
2349
2350 /* Generic PC-relative handling produces a value relative to
2351 the exact location of the relocation. Adjust it to be
2352 relative to the start of the fetch packet instead. */
2353 relocation += (input_section->output_section->vma
2354 + input_section->output_offset
2355 + rel->r_offset) & 0x1f;
2356 unresolved_reloc = FALSE;
2357 break;
2358
2359 case R_C6000_PCR_H16:
2360 case R_C6000_PCR_L16:
2361 off = (input_section->output_section->vma
2362 + input_section->output_offset
2363 + rel->r_offset);
2364 /* These must be calculated as R = S - FP(FP(PC) - A).
2365 PC, here, is the value we just computed in OFF. RELOCATION
2366 has the address of S + A. */
2367 relocation -= rel->r_addend;
2368 off2 = ((off & ~(bfd_vma)0x1f) - rel->r_addend) & (bfd_vma)~0x1f;
2369 off2 = relocation - off2;
2370 relocation = off + off2;
2371 break;
2372
2373 case R_C6000_DSBT_INDEX:
2374 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index;
2375 if (!bfd_link_pic (info) || relocation != 0)
2376 break;
2377
2378 /* fall through */
2379 case R_C6000_ABS32:
2380 case R_C6000_ABS16:
2381 case R_C6000_ABS8:
2382 case R_C6000_ABS_S16:
2383 case R_C6000_ABS_L16:
2384 case R_C6000_ABS_H16:
2385 /* When generating a shared object or relocatable executable, these
2386 relocations are copied into the output file to be resolved at
2387 run time. */
2388 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
2389 && (input_section->flags & SEC_ALLOC)
2390 && (h == NULL
2391 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2392 || h->root.type != bfd_link_hash_undefweak))
2393 {
2394 Elf_Internal_Rela outrel;
2395 bfd_boolean skip, relocate;
2396 asection *sreloc;
2397
2398 unresolved_reloc = FALSE;
2399
2400 sreloc = elf_section_data (input_section)->sreloc;
2401 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
2402
2403 skip = FALSE;
2404 relocate = FALSE;
2405
2406 outrel.r_offset =
2407 _bfd_elf_section_offset (output_bfd, info, input_section,
2408 rel->r_offset);
2409 if (outrel.r_offset == (bfd_vma) -1)
2410 skip = TRUE;
2411 else if (outrel.r_offset == (bfd_vma) -2)
2412 skip = TRUE, relocate = TRUE;
2413 outrel.r_offset += (input_section->output_section->vma
2414 + input_section->output_offset);
2415
2416 if (skip)
2417 memset (&outrel, 0, sizeof outrel);
2418 else if (h != NULL
2419 && h->dynindx != -1
2420 && (!bfd_link_pic (info)
2421 || !SYMBOLIC_BIND (info, h)
2422 || !h->def_regular))
2423 {
2424 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2425 outrel.r_addend = rel->r_addend;
2426 }
2427 else
2428 {
2429 long indx;
2430
2431 outrel.r_addend = relocation + rel->r_addend;
2432
2433 if (bfd_is_abs_section (sec))
2434 indx = 0;
2435 else if (sec == NULL || sec->owner == NULL)
2436 {
2437 bfd_set_error (bfd_error_bad_value);
2438 return FALSE;
2439 }
2440 else
2441 {
2442 asection *osec;
2443
2444 osec = sec->output_section;
2445 indx = elf_section_data (osec)->dynindx;
2446 outrel.r_addend -= osec->vma;
2447 BFD_ASSERT (indx != 0);
2448 }
2449
2450 outrel.r_info = ELF32_R_INFO (indx, r_type);
2451 }
2452
2453 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel);
2454
2455 /* If this reloc is against an external symbol, we do not want to
2456 fiddle with the addend. Otherwise, we need to include the symbol
2457 value so that it becomes an addend for the dynamic reloc. */
2458 if (! relocate)
2459 continue;
2460 }
2461
2462 /* Generic logic OK. */
2463 break;
2464
2465 case R_C6000_SBR_U15_B:
2466 case R_C6000_SBR_U15_H:
2467 case R_C6000_SBR_U15_W:
2468 case R_C6000_SBR_S16:
2469 case R_C6000_SBR_L16_B:
2470 case R_C6000_SBR_L16_H:
2471 case R_C6000_SBR_L16_W:
2472 case R_C6000_SBR_H16_B:
2473 case R_C6000_SBR_H16_H:
2474 case R_C6000_SBR_H16_W:
2475 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
2476 FALSE, FALSE, TRUE);
2477 if (sbh != NULL
2478 && (sbh->type == bfd_link_hash_defined
2479 || sbh->type == bfd_link_hash_defweak))
2480 {
2481 if (h ? (h->root.type == bfd_link_hash_undefweak
2482 && (htab->elf.splt == NULL
2483 || h->plt.offset == (bfd_vma) -1))
2484 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2485 relocation = 0;
2486 else
2487 relocation -= (sbh->u.def.value
2488 + sbh->u.def.section->output_section->vma
2489 + sbh->u.def.section->output_offset);
2490 }
2491 else
2492 {
2493 _bfd_error_handler (_("%pB: SB-relative relocation but "
2494 "__c6xabi_DSBT_BASE not defined"),
2495 input_bfd);
2496 ok = FALSE;
2497 continue;
2498 }
2499 break;
2500
2501 case R_C6000_SBR_GOT_U15_W:
2502 case R_C6000_SBR_GOT_L16_W:
2503 case R_C6000_SBR_GOT_H16_W:
2504 case R_C6000_EHTYPE:
2505 /* Relocation is to the entry for this symbol in the global
2506 offset table. */
2507 if (htab->elf.sgot == NULL)
2508 abort ();
2509
2510 if (h != NULL)
2511 {
2512 bfd_boolean dyn;
2513
2514 off = h->got.offset;
2515 dyn = htab->elf.dynamic_sections_created;
2516 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2517 bfd_link_pic (info),
2518 h)
2519 || (bfd_link_pic (info)
2520 && SYMBOL_REFERENCES_LOCAL (info, h))
2521 || (ELF_ST_VISIBILITY (h->other)
2522 && h->root.type == bfd_link_hash_undefweak))
2523 {
2524 /* This is actually a static link, or it is a
2525 -Bsymbolic link and the symbol is defined
2526 locally, or the symbol was forced to be local
2527 because of a version file. We must initialize
2528 this entry in the global offset table. Since the
2529 offset must always be a multiple of 4, we use the
2530 least significant bit to record whether we have
2531 initialized it already.
2532
2533 When doing a dynamic link, we create a .rel.got
2534 relocation entry to initialize the value. This
2535 is done in the finish_dynamic_symbol routine. */
2536 if ((off & 1) != 0)
2537 off &= ~1;
2538 else
2539 {
2540 bfd_put_32 (output_bfd, relocation,
2541 htab->elf.sgot->contents + off);
2542 h->got.offset |= 1;
2543
2544 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2545 bfd_link_pic (info),
2546 h)
2547 && !(ELF_ST_VISIBILITY (h->other)
2548 && h->root.type == bfd_link_hash_undefweak))
2549 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec,
2550 off);
2551 }
2552 }
2553 else
2554 unresolved_reloc = FALSE;
2555 }
2556 else
2557 {
2558 if (local_got_offsets == NULL)
2559 abort ();
2560
2561 off = local_got_offsets[r_symndx];
2562
2563 /* The offset must always be a multiple of 4. We use
2564 the least significant bit to record whether we have
2565 already generated the necessary reloc. */
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
2573 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
2574 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off);
2575
2576 local_got_offsets[r_symndx] |= 1;
2577 }
2578 }
2579
2580 if (off >= (bfd_vma) -2)
2581 abort ();
2582
2583 if (htab->dsbt)
2584 relocation = (htab->elf.sgot->output_section->vma
2585 + htab->elf.sgot->output_offset + off
2586 - htab->dsbt->output_section->vma
2587 - htab->dsbt->output_offset);
2588 else
2589 relocation = (htab->elf.sgot->output_section->vma
2590 + htab->elf.sgot->output_offset + off
2591 - htab->elf.sgotplt->output_section->vma
2592 - htab->elf.sgotplt->output_offset);
2593
2594 if (rel->r_addend != 0)
2595 {
2596 /* We can't do anything for a relocation which is against
2597 a symbol *plus offset*. GOT holds relocations for
2598 symbols. Make this an error; the compiler isn't
2599 allowed to pass us these kinds of things. */
2600 if (h == NULL)
2601 _bfd_error_handler
2602 /* xgettext:c-format */
2603 (_("%pB, section %pA: relocation %s with non-zero addend %"
2604 PRId64 " against local symbol"),
2605 input_bfd,
2606 input_section,
2607 elf32_tic6x_howto_table[r_type].name,
2608 (int64_t) rel->r_addend);
2609 else
2610 _bfd_error_handler
2611 /* xgettext:c-format */
2612 (_("%pB, section %pA: relocation %s with non-zero addend %"
2613 PRId64 " against symbol `%s'"),
2614 input_bfd,
2615 input_section,
2616 elf32_tic6x_howto_table[r_type].name,
2617 (int64_t) rel->r_addend,
2618 h->root.root.string[0] != '\0' ? h->root.root.string
2619 : _("[whose name is lost]"));
2620
2621 bfd_set_error (bfd_error_bad_value);
2622 return FALSE;
2623 }
2624 break;
2625
2626 case R_C6000_PREL31:
2627 if (h != NULL
2628 && h->plt.offset != (bfd_vma) -1
2629 && htab->elf.splt != NULL)
2630 {
2631 relocation = (htab->elf.splt->output_section->vma
2632 + htab->elf.splt->output_offset
2633 + h->plt.offset);
2634 }
2635 break;
2636
2637 case R_C6000_COPY:
2638 /* Invalid in relocatable object. */
2639 default:
2640 /* Unknown relocation. */
2641 /* xgettext:c-format */
2642 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
2643 input_bfd, r_type);
2644 bfd_set_error (bfd_error_bad_value);
2645 ok = FALSE;
2646 continue;
2647 }
2648
2649 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2650 contents, rel->r_offset,
2651 relocation, rel->r_addend);
2652
2653 done_reloc:
2654 if (r == bfd_reloc_ok
2655 && howto->complain_on_overflow == complain_overflow_bitfield)
2656 {
2657 /* Generic overflow handling accepts cases the ABI says
2658 should be rejected for R_C6000_ABS16 and
2659 R_C6000_ABS8. */
2660 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
2661 bfd_vma sbit = 1 << (howto->bitsize - 1);
2662 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
2663 bfd_vma value_sbits = value & sbits;
2664
2665 if (value_sbits != 0
2666 && value_sbits != sbit
2667 && value_sbits != sbits)
2668 r = bfd_reloc_overflow;
2669 }
2670
2671 if (r != bfd_reloc_ok)
2672 {
2673 const char *name;
2674 const char *error_message;
2675
2676 if (h != NULL)
2677 name = h->root.root.string;
2678 else
2679 {
2680 name = bfd_elf_string_from_elf_section (input_bfd,
2681 symtab_hdr->sh_link,
2682 sym->st_name);
2683 if (name == NULL)
2684 return FALSE;
2685 if (*name == '\0')
2686 name = bfd_section_name (input_bfd, sec);
2687 }
2688
2689 switch (r)
2690 {
2691 case bfd_reloc_overflow:
2692 /* If the overflowing reloc was to an undefined symbol,
2693 we have already printed one error message and there
2694 is no point complaining again. */
2695 if (!h || h->root.type != bfd_link_hash_undefined)
2696 (*info->callbacks->reloc_overflow)
2697 (info, (h ? &h->root : NULL), name, howto->name,
2698 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2699 break;
2700
2701 case bfd_reloc_undefined:
2702 (*info->callbacks->undefined_symbol) (info, name, input_bfd,
2703 input_section,
2704 rel->r_offset, TRUE);
2705 break;
2706
2707 case bfd_reloc_outofrange:
2708 error_message = _("out of range");
2709 goto common_error;
2710
2711 case bfd_reloc_notsupported:
2712 error_message = _("unsupported relocation");
2713 goto common_error;
2714
2715 case bfd_reloc_dangerous:
2716 error_message = _("dangerous relocation");
2717 goto common_error;
2718
2719 default:
2720 error_message = _("unknown error");
2721 /* Fall through. */
2722
2723 common_error:
2724 BFD_ASSERT (error_message != NULL);
2725 (*info->callbacks->reloc_dangerous)
2726 (info, error_message, input_bfd, input_section, rel->r_offset);
2727 break;
2728 }
2729 }
2730 }
2731
2732 return ok;
2733 }
2734
2735 \f
2736 /* Look through the relocs for a section during the first phase, and
2737 calculate needed space in the global offset table, procedure linkage
2738 table, and dynamic reloc sections. */
2739
2740 static bfd_boolean
2741 elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info,
2742 asection *sec, const Elf_Internal_Rela *relocs)
2743 {
2744 struct elf32_tic6x_link_hash_table *htab;
2745 Elf_Internal_Shdr *symtab_hdr;
2746 struct elf_link_hash_entry **sym_hashes;
2747 const Elf_Internal_Rela *rel;
2748 const Elf_Internal_Rela *rel_end;
2749 asection *sreloc;
2750
2751 if (bfd_link_relocatable (info))
2752 return TRUE;
2753
2754 htab = elf32_tic6x_hash_table (info);
2755 symtab_hdr = &elf_symtab_hdr (abfd);
2756 sym_hashes = elf_sym_hashes (abfd);
2757
2758 /* Create dynamic sections for relocatable executables so that we can
2759 copy relocations. */
2760 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
2761 && ! htab->elf.dynamic_sections_created)
2762 {
2763 if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
2764 return FALSE;
2765 }
2766
2767 sreloc = NULL;
2768
2769 rel_end = relocs + sec->reloc_count;
2770 for (rel = relocs; rel < rel_end; rel++)
2771 {
2772 unsigned int r_type;
2773 unsigned int r_symndx;
2774 struct elf_link_hash_entry *h;
2775 Elf_Internal_Sym *isym;
2776
2777 r_symndx = ELF32_R_SYM (rel->r_info);
2778 r_type = ELF32_R_TYPE (rel->r_info);
2779
2780 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
2781 {
2782 /* xgettext:c-format */
2783 _bfd_error_handler (_("%pB: bad symbol index: %d"),
2784 abfd, r_symndx);
2785 return FALSE;
2786 }
2787
2788 if (r_symndx < symtab_hdr->sh_info)
2789 {
2790 /* A local symbol. */
2791 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2792 abfd, r_symndx);
2793 if (isym == NULL)
2794 return FALSE;
2795 h = NULL;
2796 }
2797 else
2798 {
2799 isym = NULL;
2800 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2801 while (h->root.type == bfd_link_hash_indirect
2802 || h->root.type == bfd_link_hash_warning)
2803 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2804 }
2805
2806 switch (r_type)
2807 {
2808 case R_C6000_PCR_S21:
2809 case R_C6000_PREL31:
2810 /* This symbol requires a procedure linkage table entry. We
2811 actually build the entry in adjust_dynamic_symbol,
2812 because this might be a case of linking PIC code which is
2813 never referenced by a dynamic object, in which case we
2814 don't need to generate a procedure linkage table entry
2815 after all. */
2816
2817 /* If this is a local symbol, we resolve it directly without
2818 creating a procedure linkage table entry. */
2819 if (h == NULL)
2820 continue;
2821
2822 h->needs_plt = 1;
2823 h->plt.refcount += 1;
2824 break;
2825
2826 case R_C6000_SBR_GOT_U15_W:
2827 case R_C6000_SBR_GOT_L16_W:
2828 case R_C6000_SBR_GOT_H16_W:
2829 case R_C6000_EHTYPE:
2830 /* This symbol requires a global offset table entry. */
2831 if (h != NULL)
2832 {
2833 h->got.refcount += 1;
2834 }
2835 else
2836 {
2837 bfd_signed_vma *local_got_refcounts;
2838
2839 /* This is a global offset table entry for a local symbol. */
2840 local_got_refcounts = elf_local_got_refcounts (abfd);
2841 if (local_got_refcounts == NULL)
2842 {
2843 bfd_size_type size;
2844
2845 size = symtab_hdr->sh_info;
2846 size *= (sizeof (bfd_signed_vma)
2847 + sizeof (bfd_vma) + sizeof(char));
2848 local_got_refcounts = bfd_zalloc (abfd, size);
2849 if (local_got_refcounts == NULL)
2850 return FALSE;
2851 elf_local_got_refcounts (abfd) = local_got_refcounts;
2852 }
2853 local_got_refcounts[r_symndx] += 1;
2854 }
2855
2856 if (htab->elf.sgot == NULL)
2857 {
2858 if (htab->elf.dynobj == NULL)
2859 htab->elf.dynobj = abfd;
2860 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
2861 return FALSE;
2862 }
2863 break;
2864
2865 case R_C6000_DSBT_INDEX:
2866 /* We'd like to check for nonzero dsbt_index here, but it's
2867 set up only after check_relocs is called. Instead, we
2868 store the number of R_C6000_DSBT_INDEX relocs in the
2869 pc_count field, and potentially discard the extra space
2870 in elf32_tic6x_allocate_dynrelocs. */
2871 if (!bfd_link_pic (info))
2872 break;
2873
2874 /* fall through */
2875 case R_C6000_ABS32:
2876 case R_C6000_ABS16:
2877 case R_C6000_ABS8:
2878 case R_C6000_ABS_S16:
2879 case R_C6000_ABS_L16:
2880 case R_C6000_ABS_H16:
2881 /* If we are creating a shared library, and this is a reloc
2882 against a global symbol, or a non PC relative reloc
2883 against a local symbol, then we need to copy the reloc
2884 into the shared library. However, if we are linking with
2885 -Bsymbolic, we do not need to copy a reloc against a
2886 global symbol which is defined in an object we are
2887 including in the link (i.e., DEF_REGULAR is set). At
2888 this point we have not seen all the input files, so it is
2889 possible that DEF_REGULAR is not set now but will be set
2890 later (it is never cleared). In case of a weak definition,
2891 DEF_REGULAR may be cleared later by a strong definition in
2892 a shared library. We account for that possibility below by
2893 storing information in the relocs_copied field of the hash
2894 table entry. A similar situation occurs when creating
2895 shared libraries and symbol visibility changes render the
2896 symbol local.
2897
2898 If on the other hand, we are creating an executable, we
2899 may need to keep relocations for symbols satisfied by a
2900 dynamic library if we manage to avoid copy relocs for the
2901 symbol. */
2902 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
2903 && (sec->flags & SEC_ALLOC) != 0)
2904 {
2905 struct elf_dyn_relocs *p;
2906 struct elf_dyn_relocs **head;
2907
2908 /* We must copy these reloc types into the output file.
2909 Create a reloc section in dynobj and make room for
2910 this reloc. */
2911 if (sreloc == NULL)
2912 {
2913 if (htab->elf.dynobj == NULL)
2914 htab->elf.dynobj = abfd;
2915
2916 sreloc = _bfd_elf_make_dynamic_reloc_section
2917 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE);
2918
2919 if (sreloc == NULL)
2920 return FALSE;
2921 }
2922
2923 /* If this is a global symbol, we count the number of
2924 relocations we need for this symbol. */
2925 if (h != NULL)
2926 {
2927 head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs;
2928 }
2929 else
2930 {
2931 /* Track dynamic relocs needed for local syms too.
2932 We really need local syms available to do this
2933 easily. Oh well. */
2934 void **vpp;
2935 asection *s;
2936
2937 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2938 if (s == NULL)
2939 s = sec;
2940
2941 vpp = &elf_section_data (s)->local_dynrel;
2942 head = (struct elf_dyn_relocs **)vpp;
2943 }
2944
2945 p = *head;
2946 if (p == NULL || p->sec != sec)
2947 {
2948 bfd_size_type amt = sizeof *p;
2949 p = bfd_alloc (htab->elf.dynobj, amt);
2950 if (p == NULL)
2951 return FALSE;
2952 p->next = *head;
2953 *head = p;
2954 p->sec = sec;
2955 p->count = 0;
2956 p->pc_count = 0;
2957 }
2958
2959 p->count += 1;
2960 if (r_type == R_C6000_DSBT_INDEX)
2961 p->pc_count += 1;
2962 }
2963 break;
2964
2965 case R_C6000_SBR_U15_B:
2966 case R_C6000_SBR_U15_H:
2967 case R_C6000_SBR_U15_W:
2968 case R_C6000_SBR_S16:
2969 case R_C6000_SBR_L16_B:
2970 case R_C6000_SBR_L16_H:
2971 case R_C6000_SBR_L16_W:
2972 case R_C6000_SBR_H16_B:
2973 case R_C6000_SBR_H16_H:
2974 case R_C6000_SBR_H16_W:
2975 {
2976 /* These relocations implicitly reference __c6xabi_DSBT_BASE.
2977 Add an explicit reference so that the symbol will be
2978 provided by a linker script. */
2979 struct bfd_link_hash_entry *bh = NULL;
2980 if (!_bfd_generic_link_add_one_symbol (info, abfd,
2981 "__c6xabi_DSBT_BASE",
2982 BSF_GLOBAL,
2983 bfd_und_section_ptr, 0,
2984 NULL, FALSE, FALSE, &bh))
2985 return FALSE;
2986 ((struct elf_link_hash_entry *) bh)->non_elf = 0;
2987 }
2988 if (h != NULL && bfd_link_executable (info))
2989 {
2990 /* For B14-relative addresses, we might need a copy
2991 reloc. */
2992 h->non_got_ref = 1;
2993 }
2994 break;
2995
2996 default:
2997 break;
2998 }
2999 }
3000
3001 return TRUE;
3002 }
3003
3004 static bfd_boolean
3005 elf32_tic6x_add_symbol_hook (bfd *abfd,
3006 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3007 Elf_Internal_Sym *sym,
3008 const char **namep ATTRIBUTE_UNUSED,
3009 flagword *flagsp ATTRIBUTE_UNUSED,
3010 asection **secp,
3011 bfd_vma *valp)
3012 {
3013 switch (sym->st_shndx)
3014 {
3015 case SHN_TIC6X_SCOMMON:
3016 *secp = bfd_make_section_old_way (abfd, ".scommon");
3017 (*secp)->flags |= SEC_IS_COMMON;
3018 *valp = sym->st_size;
3019 (void) bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value));
3020 break;
3021 }
3022
3023 return TRUE;
3024 }
3025
3026 static void
3027 elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
3028 {
3029 elf_symbol_type *elfsym;
3030
3031 elfsym = (elf_symbol_type *) asym;
3032 switch (elfsym->internal_elf_sym.st_shndx)
3033 {
3034 case SHN_TIC6X_SCOMMON:
3035 if (tic6x_elf_scom_section.name == NULL)
3036 {
3037 /* Initialize the small common section. */
3038 tic6x_elf_scom_section.name = ".scommon";
3039 tic6x_elf_scom_section.flags = SEC_IS_COMMON;
3040 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section;
3041 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol;
3042 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr;
3043 tic6x_elf_scom_symbol.name = ".scommon";
3044 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM;
3045 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section;
3046 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol;
3047 }
3048 asym->section = &tic6x_elf_scom_section;
3049 asym->value = elfsym->internal_elf_sym.st_size;
3050 break;
3051 }
3052 }
3053
3054 static int
3055 elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3056 const char *name ATTRIBUTE_UNUSED,
3057 Elf_Internal_Sym *sym,
3058 asection *input_sec,
3059 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3060 {
3061 /* If we see a common symbol, which implies a relocatable link, then
3062 if a symbol was small common in an input file, mark it as small
3063 common in the output file. */
3064 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
3065 sym->st_shndx = SHN_TIC6X_SCOMMON;
3066
3067 return 1;
3068 }
3069
3070 static bfd_boolean
3071 elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
3072 asection *sec,
3073 int *retval)
3074 {
3075 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3076 {
3077 *retval = SHN_TIC6X_SCOMMON;
3078 return TRUE;
3079 }
3080
3081 return FALSE;
3082 }
3083
3084 /* Allocate space in .plt, .got and associated reloc sections for
3085 dynamic relocs. */
3086
3087 static bfd_boolean
3088 elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3089 {
3090 struct bfd_link_info *info;
3091 struct elf32_tic6x_link_hash_table *htab;
3092 struct elf32_tic6x_link_hash_entry *eh;
3093 struct elf_dyn_relocs *p;
3094
3095 if (h->root.type == bfd_link_hash_indirect)
3096 return TRUE;
3097
3098 eh = (struct elf32_tic6x_link_hash_entry *) h;
3099 info = (struct bfd_link_info *) inf;
3100 htab = elf32_tic6x_hash_table (info);
3101
3102 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0)
3103 {
3104 /* Make sure this symbol is output as a dynamic symbol.
3105 Undefined weak syms won't yet be marked as dynamic. */
3106 if (h->dynindx == -1 && !h->forced_local)
3107 {
3108 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3109 return FALSE;
3110 }
3111
3112 if (bfd_link_pic (info)
3113 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
3114 {
3115 asection *s = htab->elf.splt;
3116
3117 /* If this is the first .plt entry, make room for the special
3118 first entry. */
3119 if (s->size == 0)
3120 s->size += PLT_ENTRY_SIZE;
3121
3122 h->plt.offset = s->size;
3123
3124 /* If this symbol is not defined in a regular file, and we are
3125 not generating a shared library, then set the symbol to this
3126 location in the .plt. This is required to make function
3127 pointers compare as equal between the normal executable and
3128 the shared library. */
3129 if (! bfd_link_pic (info) && !h->def_regular)
3130 {
3131 h->root.u.def.section = s;
3132 h->root.u.def.value = h->plt.offset;
3133 }
3134
3135 /* Make room for this entry. */
3136 s->size += PLT_ENTRY_SIZE;
3137 /* We also need to make an entry in the .got.plt section, which
3138 will be placed in the .got section by the linker script. */
3139 htab->elf.sgotplt->size += 4;
3140 /* We also need to make an entry in the .rel.plt section. */
3141 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
3142 }
3143 else
3144 {
3145 h->plt.offset = (bfd_vma) -1;
3146 h->needs_plt = 0;
3147 }
3148 }
3149 else
3150 {
3151 h->plt.offset = (bfd_vma) -1;
3152 h->needs_plt = 0;
3153 }
3154
3155 if (h->got.refcount > 0)
3156 {
3157 asection *s;
3158
3159 /* Make sure this symbol is output as a dynamic symbol.
3160 Undefined weak syms won't yet be marked as dynamic. */
3161 if (h->dynindx == -1
3162 && !h->forced_local)
3163 {
3164 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3165 return FALSE;
3166 }
3167
3168 s = htab->elf.sgot;
3169 h->got.offset = s->size;
3170 s->size += 4;
3171
3172 if (!(ELF_ST_VISIBILITY (h->other)
3173 && h->root.type == bfd_link_hash_undefweak))
3174 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3175 }
3176 else
3177 h->got.offset = (bfd_vma) -1;
3178
3179 if (eh->dyn_relocs == NULL)
3180 return TRUE;
3181
3182 /* Discard relocs on undefined weak syms with non-default
3183 visibility. */
3184 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (htab->obfd))
3185 {
3186 /* We use the pc_count field to hold the number of
3187 R_C6000_DSBT_INDEX relocs. */
3188 if (htab->params.dsbt_index != 0)
3189 {
3190 struct elf_dyn_relocs **pp;
3191
3192 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3193 {
3194 p->count -= p->pc_count;
3195 p->pc_count = 0;
3196 if (p->count == 0)
3197 *pp = p->next;
3198 else
3199 pp = &p->next;
3200 }
3201 }
3202
3203 if (eh->dyn_relocs != NULL
3204 && h->root.type == bfd_link_hash_undefweak)
3205 {
3206 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3207 eh->dyn_relocs = NULL;
3208
3209 /* Make sure undefined weak symbols are output as a dynamic
3210 symbol in PIEs. */
3211 else if (h->dynindx == -1
3212 && !h->forced_local)
3213 {
3214 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3215 return FALSE;
3216 }
3217 }
3218 }
3219
3220 /* Finally, allocate space. */
3221 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3222 {
3223 asection *sreloc;
3224
3225 sreloc = elf_section_data (p->sec)->sreloc;
3226
3227 BFD_ASSERT (sreloc != NULL);
3228 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3229 }
3230
3231 return TRUE;
3232 }
3233
3234 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
3235 read-only sections. */
3236
3237 static bfd_boolean
3238 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
3239 {
3240 asection *sec;
3241
3242 if (h->root.type == bfd_link_hash_indirect)
3243 return TRUE;
3244
3245 sec = readonly_dynrelocs (h);
3246 if (sec != NULL)
3247 {
3248 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
3249
3250 info->flags |= DF_TEXTREL;
3251 info->callbacks->minfo
3252 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
3253 sec->owner, h->root.root.string, sec);
3254
3255 /* Not an error, just cut short the traversal. */
3256 return FALSE;
3257 }
3258 return TRUE;
3259 }
3260
3261 /* Set the sizes of the dynamic sections. */
3262
3263 static bfd_boolean
3264 elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3265 {
3266 struct elf32_tic6x_link_hash_table *htab;
3267 bfd *dynobj;
3268 asection *s;
3269 bfd_boolean relocs;
3270 bfd *ibfd;
3271
3272 htab = elf32_tic6x_hash_table (info);
3273 dynobj = htab->elf.dynobj;
3274 if (dynobj == NULL)
3275 abort ();
3276
3277 if (htab->elf.dynamic_sections_created)
3278 {
3279 /* Set the contents of the .interp section to the interpreter. */
3280 if (bfd_link_executable (info) && !info->nointerp)
3281 {
3282 s = bfd_get_linker_section (dynobj, ".interp");
3283 if (s == NULL)
3284 abort ();
3285 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3286 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3287 }
3288 }
3289
3290 /* Set up .got offsets for local syms, and space for local dynamic
3291 relocs. */
3292 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
3293 {
3294 bfd_signed_vma *local_got;
3295 bfd_signed_vma *end_local_got;
3296 bfd_size_type locsymcount;
3297 Elf_Internal_Shdr *symtab_hdr;
3298 asection *srel;
3299
3300 for (s = ibfd->sections; s != NULL; s = s->next)
3301 {
3302 struct elf_dyn_relocs *p;
3303
3304 for (p = ((struct elf_dyn_relocs *)
3305 elf_section_data (s)->local_dynrel);
3306 p != NULL;
3307 p = p->next)
3308 {
3309 if (!bfd_is_abs_section (p->sec)
3310 && bfd_is_abs_section (p->sec->output_section))
3311 {
3312 /* Input section has been discarded, either because
3313 it is a copy of a linkonce section or due to
3314 linker script /DISCARD/, so we'll be discarding
3315 the relocs too. */
3316 }
3317 else if (p->count != 0)
3318 {
3319 srel = elf_section_data (p->sec)->sreloc;
3320 srel->size += p->count * sizeof (Elf32_External_Rela);
3321 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3322 info->flags |= DF_TEXTREL;
3323 }
3324 }
3325 }
3326
3327 local_got = elf_local_got_refcounts (ibfd);
3328 if (!local_got)
3329 continue;
3330
3331 symtab_hdr = &elf_symtab_hdr (ibfd);
3332 locsymcount = symtab_hdr->sh_info;
3333 end_local_got = local_got + locsymcount;
3334 s = htab->elf.sgot;
3335 srel = htab->elf.srelgot;
3336 for (; local_got < end_local_got; ++local_got)
3337 {
3338 if (*local_got > 0)
3339 {
3340 *local_got = s->size;
3341 s->size += 4;
3342
3343 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
3344 {
3345 srel->size += sizeof (Elf32_External_Rela);
3346 }
3347 }
3348 else
3349 *local_got = (bfd_vma) -1;
3350 }
3351 }
3352
3353 /* Allocate global sym .plt and .got entries, and space for global
3354 sym dynamic relocs. */
3355 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info);
3356
3357 /* We now have determined the sizes of the various dynamic sections.
3358 Allocate memory for them. */
3359 relocs = FALSE;
3360 for (s = dynobj->sections; s != NULL; s = s->next)
3361 {
3362 bfd_boolean strip_section = TRUE;
3363
3364 if ((s->flags & SEC_LINKER_CREATED) == 0)
3365 continue;
3366
3367 if (s == htab->dsbt)
3368 s->size = 4 * htab->params.dsbt_size;
3369 else if (s == htab->elf.splt
3370 || s == htab->elf.sgot
3371 || s == htab->elf.sgotplt
3372 || s == htab->elf.sdynbss
3373 || s == htab->elf.sdynrelro)
3374 {
3375 /* Strip this section if we don't need it; see the
3376 comment below. */
3377 /* We'd like to strip these sections if they aren't needed, but if
3378 we've exported dynamic symbols from them we must leave them.
3379 It's too late to tell BFD to get rid of the symbols. */
3380
3381 if (htab->elf.hplt != NULL)
3382 strip_section = FALSE;
3383
3384 /* Round up the size of the PLT section to a multiple of 32. */
3385 if (s == htab->elf.splt && s->size > 0)
3386 s->size = (s->size + 31) & ~(bfd_vma)31;
3387 }
3388 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
3389 {
3390 if (s->size != 0
3391 && s != htab->elf.srelplt)
3392 relocs = TRUE;
3393
3394 /* We use the reloc_count field as a counter if we need
3395 to copy relocs into the output file. */
3396 s->reloc_count = 0;
3397 }
3398 else
3399 {
3400 /* It's not one of our sections, so don't allocate space. */
3401 continue;
3402 }
3403
3404 if (s->size == 0)
3405 {
3406 /* If we don't need this section, strip it from the
3407 output file. This is mostly to handle .rel.bss and
3408 .rel.plt. We must create both sections in
3409 create_dynamic_sections, because they must be created
3410 before the linker maps input sections to output
3411 sections. The linker does that before
3412 adjust_dynamic_symbol is called, and it is that
3413 function which decides whether anything needs to go
3414 into these sections. */
3415 if (strip_section)
3416 s->flags |= SEC_EXCLUDE;
3417 continue;
3418 }
3419
3420 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3421 continue;
3422
3423 /* Allocate memory for the section contents. We use bfd_zalloc
3424 here in case unused entries are not reclaimed before the
3425 section's contents are written out. This should not happen,
3426 but this way if it does, we get a R_C6000_NONE reloc instead
3427 of garbage. */
3428 s->contents = bfd_zalloc (dynobj, s->size);
3429 if (s->contents == NULL)
3430 return FALSE;
3431 }
3432
3433 if (htab->elf.dynamic_sections_created)
3434 {
3435 /* Add some entries to the .dynamic section. We fill in the
3436 values later, in elf32_tic6x_finish_dynamic_sections, but we
3437 must add the entries now so that we get the correct size for
3438 the .dynamic section. The DT_DEBUG entry is filled in by the
3439 dynamic linker and used by the debugger. */
3440 #define add_dynamic_entry(TAG, VAL) \
3441 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3442
3443 if (bfd_link_executable (info))
3444 {
3445 if (!add_dynamic_entry (DT_DEBUG, 0))
3446 return FALSE;
3447 }
3448
3449 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0)
3450 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size)
3451 || !add_dynamic_entry (DT_C6000_DSBT_INDEX,
3452 htab->params.dsbt_index))
3453 return FALSE;
3454
3455 if (htab->elf.splt->size != 0)
3456 {
3457 if (!add_dynamic_entry (DT_PLTGOT, 0)
3458 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3459 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3460 || !add_dynamic_entry (DT_JMPREL, 0))
3461 return FALSE;
3462 }
3463
3464 if (relocs)
3465 {
3466 if (!add_dynamic_entry (DT_RELA, 0)
3467 || !add_dynamic_entry (DT_RELASZ, 0)
3468 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3469 return FALSE;
3470
3471 /* If any dynamic relocs apply to a read-only section,
3472 then we need a DT_TEXTREL entry. */
3473 if ((info->flags & DF_TEXTREL) == 0)
3474 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
3475
3476 if ((info->flags & DF_TEXTREL) != 0)
3477 {
3478 if (!add_dynamic_entry (DT_TEXTREL, 0))
3479 return FALSE;
3480 }
3481 }
3482 }
3483 #undef add_dynamic_entry
3484
3485 return TRUE;
3486 }
3487
3488 /* This function is called after all the input files have been read,
3489 and the input sections have been assigned to output sections. */
3490
3491 static bfd_boolean
3492 elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
3493 {
3494 if (elf32_tic6x_using_dsbt (output_bfd) && !bfd_link_relocatable (info)
3495 && !bfd_elf_stack_segment_size (output_bfd, info,
3496 "__stacksize", DEFAULT_STACK_SIZE))
3497 return FALSE;
3498
3499 return TRUE;
3500 }
3501
3502 static bfd_boolean
3503 elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3504 struct bfd_link_info *info)
3505 {
3506 struct elf32_tic6x_link_hash_table *htab;
3507 bfd *dynobj;
3508 asection *sdyn;
3509
3510 htab = elf32_tic6x_hash_table (info);
3511 dynobj = htab->elf.dynobj;
3512 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3513
3514 if (elf_hash_table (info)->dynamic_sections_created)
3515 {
3516 Elf32_External_Dyn * dyncon;
3517 Elf32_External_Dyn * dynconend;
3518
3519 BFD_ASSERT (sdyn != NULL);
3520
3521 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3522 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3523
3524 for (; dyncon < dynconend; dyncon++)
3525 {
3526 Elf_Internal_Dyn dyn;
3527 asection *s;
3528
3529 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3530
3531 switch (dyn.d_tag)
3532 {
3533 default:
3534 break;
3535
3536 case DT_C6000_DSBT_BASE:
3537 s = htab->dsbt;
3538 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset);
3539 break;
3540
3541 case DT_PLTGOT:
3542 s = htab->elf.sgotplt;
3543 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3544 break;
3545
3546 case DT_JMPREL:
3547 s = htab->elf.srelplt;
3548 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3549 break;
3550
3551 case DT_PLTRELSZ:
3552 s = htab->elf.srelplt;
3553 dyn.d_un.d_val = s->size;
3554 break;
3555 }
3556 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3557 }
3558
3559 /* Fill in the first entry in the procedure linkage table. */
3560 if (htab->elf.splt && htab->elf.splt->size > 0)
3561 {
3562 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma
3563 + htab->elf.sgotplt->output_offset
3564 - htab->dsbt->output_section->vma
3565 - htab->dsbt->output_offset) / 4;
3566
3567 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3568 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e,
3569 htab->elf.splt->contents);
3570 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3571 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e,
3572 htab->elf.splt->contents + 4);
3573 /* nop 3 */
3574 bfd_put_32 (output_bfd, 0x00004000,
3575 htab->elf.splt->contents + 8);
3576 /* b .s2 b2 */
3577 bfd_put_32 (output_bfd, 0x00080362,
3578 htab->elf.splt->contents + 12);
3579 /* nop 5 */
3580 bfd_put_32 (output_bfd, 0x00008000,
3581 htab->elf.splt->contents + 16);
3582
3583 elf_section_data (htab->elf.splt->output_section)
3584 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3585 }
3586 }
3587
3588 return TRUE;
3589 }
3590
3591 /* Return address for Ith PLT stub in section PLT, for relocation REL
3592 or (bfd_vma) -1 if it should not be included. */
3593
3594 static bfd_vma
3595 elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt,
3596 const arelent *rel ATTRIBUTE_UNUSED)
3597 {
3598 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3599 }
3600
3601 static int
3602 elf32_tic6x_obj_attrs_arg_type (int tag)
3603 {
3604 if (tag == Tag_ABI_compatibility)
3605 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
3606 else if (tag & 1)
3607 return ATTR_TYPE_FLAG_STR_VAL;
3608 else
3609 return ATTR_TYPE_FLAG_INT_VAL;
3610 }
3611
3612 static int
3613 elf32_tic6x_obj_attrs_order (int num)
3614 {
3615 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
3616 return Tag_ABI_conformance;
3617 if ((num - 1) < Tag_ABI_conformance)
3618 return num - 1;
3619 return num;
3620 }
3621
3622 static bfd_boolean
3623 elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
3624 {
3625 if ((tag & 127) < 64)
3626 {
3627 _bfd_error_handler
3628 /* xgettext:c-format */
3629 (_("%pB: error: unknown mandatory EABI object attribute %d"),
3630 abfd, tag);
3631 bfd_set_error (bfd_error_bad_value);
3632 return FALSE;
3633 }
3634 else
3635 {
3636 _bfd_error_handler
3637 /* xgettext:c-format */
3638 (_("%pB: warning: unknown EABI object attribute %d"),
3639 abfd, tag);
3640 return TRUE;
3641 }
3642 }
3643
3644 /* Merge the Tag_ISA attribute values ARCH1 and ARCH2
3645 and return the merged value. At present, all merges succeed, so no
3646 return value for errors is defined. */
3647
3648 int
3649 elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
3650 {
3651 int min_arch, max_arch;
3652
3653 min_arch = (arch1 < arch2 ? arch1 : arch2);
3654 max_arch = (arch1 > arch2 ? arch1 : arch2);
3655
3656 /* In most cases, the numerically greatest value is the correct
3657 merged value, but merging C64 and C67 results in C674X. */
3658 if ((min_arch == C6XABI_Tag_ISA_C67X
3659 || min_arch == C6XABI_Tag_ISA_C67XP)
3660 && (max_arch == C6XABI_Tag_ISA_C64X
3661 || max_arch == C6XABI_Tag_ISA_C64XP))
3662 return C6XABI_Tag_ISA_C674X;
3663
3664 return max_arch;
3665 }
3666
3667 /* Convert a Tag_ABI_array_object_alignment or
3668 Tag_ABI_array_object_align_expected tag value TAG to a
3669 corresponding alignment value; return the alignment, or -1 for an
3670 unknown tag value. */
3671
3672 static int
3673 elf32_tic6x_tag_to_array_alignment (int tag)
3674 {
3675 switch (tag)
3676 {
3677 case 0:
3678 return 8;
3679
3680 case 1:
3681 return 4;
3682
3683 case 2:
3684 return 16;
3685
3686 default:
3687 return -1;
3688 }
3689 }
3690
3691 /* Convert a Tag_ABI_array_object_alignment or
3692 Tag_ABI_array_object_align_expected alignment ALIGN to a
3693 corresponding tag value; return the tag value. */
3694
3695 static int
3696 elf32_tic6x_array_alignment_to_tag (int align)
3697 {
3698 switch (align)
3699 {
3700 case 8:
3701 return 0;
3702
3703 case 4:
3704 return 1;
3705
3706 case 16:
3707 return 2;
3708
3709 default:
3710 abort ();
3711 }
3712 }
3713
3714 /* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3715 succeeded, FALSE otherwise. */
3716
3717 static bfd_boolean
3718 elf32_tic6x_merge_attributes (bfd *ibfd, struct bfd_link_info *info)
3719 {
3720 bfd *obfd = info->output_bfd;
3721 bfd_boolean result = TRUE;
3722 obj_attribute *in_attr;
3723 obj_attribute *out_attr;
3724 int i;
3725 int array_align_in, array_align_out, array_expect_in, array_expect_out;
3726
3727 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3728 {
3729 /* This is the first object. Copy the attributes. */
3730 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3731
3732 out_attr = elf_known_obj_attributes_proc (obfd);
3733
3734 /* Use the Tag_null value to indicate the attributes have been
3735 initialized. */
3736 out_attr[0].i = 1;
3737
3738 return TRUE;
3739 }
3740
3741 in_attr = elf_known_obj_attributes_proc (ibfd);
3742 out_attr = elf_known_obj_attributes_proc (obfd);
3743
3744 /* No specification yet for handling of unknown attributes, so just
3745 ignore them and handle known ones. */
3746
3747 if (out_attr[Tag_ABI_stack_align_preserved].i
3748 < in_attr[Tag_ABI_stack_align_needed].i)
3749 {
3750 _bfd_error_handler
3751 /* xgettext:c-format */
3752 (_("error: %pB requires more stack alignment than %pB preserves"),
3753 ibfd, obfd);
3754 result = FALSE;
3755 }
3756 if (in_attr[Tag_ABI_stack_align_preserved].i
3757 < out_attr[Tag_ABI_stack_align_needed].i)
3758 {
3759 _bfd_error_handler
3760 /* xgettext:c-format */
3761 (_("error: %pB requires more stack alignment than %pB preserves"),
3762 obfd, ibfd);
3763 result = FALSE;
3764 }
3765
3766 array_align_in = elf32_tic6x_tag_to_array_alignment
3767 (in_attr[Tag_ABI_array_object_alignment].i);
3768 if (array_align_in == -1)
3769 {
3770 _bfd_error_handler
3771 (_("error: unknown Tag_ABI_array_object_alignment value in %pB"),
3772 ibfd);
3773 result = FALSE;
3774 }
3775 array_align_out = elf32_tic6x_tag_to_array_alignment
3776 (out_attr[Tag_ABI_array_object_alignment].i);
3777 if (array_align_out == -1)
3778 {
3779 _bfd_error_handler
3780 (_("error: unknown Tag_ABI_array_object_alignment value in %pB"),
3781 obfd);
3782 result = FALSE;
3783 }
3784 array_expect_in = elf32_tic6x_tag_to_array_alignment
3785 (in_attr[Tag_ABI_array_object_align_expected].i);
3786 if (array_expect_in == -1)
3787 {
3788 _bfd_error_handler
3789 (_("error: unknown Tag_ABI_array_object_align_expected value in %pB"),
3790 ibfd);
3791 result = FALSE;
3792 }
3793 array_expect_out = elf32_tic6x_tag_to_array_alignment
3794 (out_attr[Tag_ABI_array_object_align_expected].i);
3795 if (array_expect_out == -1)
3796 {
3797 _bfd_error_handler
3798 (_("error: unknown Tag_ABI_array_object_align_expected value in %pB"),
3799 obfd);
3800 result = FALSE;
3801 }
3802
3803 if (array_align_out < array_expect_in)
3804 {
3805 _bfd_error_handler
3806 /* xgettext:c-format */
3807 (_("error: %pB requires more array alignment than %pB preserves"),
3808 ibfd, obfd);
3809 result = FALSE;
3810 }
3811 if (array_align_in < array_expect_out)
3812 {
3813 _bfd_error_handler
3814 /* xgettext:c-format */
3815 (_("error: %pB requires more array alignment than %pB preserves"),
3816 obfd, ibfd);
3817 result = FALSE;
3818 }
3819
3820 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
3821 {
3822 switch (i)
3823 {
3824 case Tag_ISA:
3825 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
3826 out_attr[i].i);
3827 break;
3828
3829 case Tag_ABI_wchar_t:
3830 if (out_attr[i].i == 0)
3831 out_attr[i].i = in_attr[i].i;
3832 if (out_attr[i].i != 0
3833 && in_attr[i].i != 0
3834 && out_attr[i].i != in_attr[i].i)
3835 {
3836 _bfd_error_handler
3837 /* xgettext:c-format */
3838 (_("warning: %pB and %pB differ in wchar_t size"), obfd, ibfd);
3839 }
3840 break;
3841
3842 case Tag_ABI_stack_align_needed:
3843 if (out_attr[i].i < in_attr[i].i)
3844 out_attr[i].i = in_attr[i].i;
3845 break;
3846
3847 case Tag_ABI_stack_align_preserved:
3848 if (out_attr[i].i > in_attr[i].i)
3849 out_attr[i].i = in_attr[i].i;
3850 break;
3851
3852 case Tag_ABI_DSBT:
3853 if (out_attr[i].i != in_attr[i].i)
3854 {
3855 _bfd_error_handler
3856 /* xgettext:c-format */
3857 (_("warning: %pB and %pB differ in whether code is "
3858 "compiled for DSBT"),
3859 obfd, ibfd);
3860 }
3861 break;
3862
3863 case Tag_ABI_PIC:
3864 case Tag_ABI_PID:
3865 if (out_attr[i].i > in_attr[i].i)
3866 out_attr[i].i = in_attr[i].i;
3867 break;
3868
3869 case Tag_ABI_array_object_alignment:
3870 if (array_align_out != -1
3871 && array_align_in != -1
3872 && array_align_out > array_align_in)
3873 out_attr[i].i
3874 = elf32_tic6x_array_alignment_to_tag (array_align_in);
3875 break;
3876
3877 case Tag_ABI_array_object_align_expected:
3878 if (array_expect_out != -1
3879 && array_expect_in != -1
3880 && array_expect_out < array_expect_in)
3881 out_attr[i].i
3882 = elf32_tic6x_array_alignment_to_tag (array_expect_in);
3883 break;
3884
3885 case Tag_ABI_conformance:
3886 /* Merging for this attribute is not specified. As on ARM,
3887 treat a missing attribute as no claim to conform and only
3888 merge identical values. */
3889 if (out_attr[i].s == NULL
3890 || in_attr[i].s == NULL
3891 || strcmp (out_attr[i].s,
3892 in_attr[i].s) != 0)
3893 out_attr[i].s = NULL;
3894 break;
3895
3896 case Tag_ABI_compatibility:
3897 /* Merged in _bfd_elf_merge_object_attributes. */
3898 break;
3899
3900 default:
3901 result
3902 = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
3903 break;
3904 }
3905
3906 if (in_attr[i].type && !out_attr[i].type)
3907 out_attr[i].type = in_attr[i].type;
3908 }
3909
3910 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
3911 if (!_bfd_elf_merge_object_attributes (ibfd, info))
3912 return FALSE;
3913
3914 result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
3915
3916 return result;
3917 }
3918
3919 static bfd_boolean
3920 elf32_tic6x_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
3921 {
3922 if (!_bfd_generic_verify_endian_match (ibfd, info))
3923 return FALSE;
3924
3925 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (info->output_bfd))
3926 return TRUE;
3927
3928 if (!elf32_tic6x_merge_attributes (ibfd, info))
3929 return FALSE;
3930
3931 return TRUE;
3932 }
3933
3934 /* Add a new unwind edit to the list described by HEAD, TAIL. If TINDEX is zero,
3935 adds the edit to the start of the list. (The list must be built in order of
3936 ascending TINDEX: the function's callers are primarily responsible for
3937 maintaining that condition). */
3938
3939 static void
3940 elf32_tic6x_add_unwind_table_edit (tic6x_unwind_table_edit **head,
3941 tic6x_unwind_table_edit **tail,
3942 tic6x_unwind_edit_type type,
3943 asection *linked_section,
3944 unsigned int tindex)
3945 {
3946 tic6x_unwind_table_edit *new_edit = (tic6x_unwind_table_edit *)
3947 xmalloc (sizeof (tic6x_unwind_table_edit));
3948
3949 new_edit->type = type;
3950 new_edit->linked_section = linked_section;
3951 new_edit->index = tindex;
3952
3953 if (tindex > 0)
3954 {
3955 new_edit->next = NULL;
3956
3957 if (*tail)
3958 (*tail)->next = new_edit;
3959
3960 (*tail) = new_edit;
3961
3962 if (!*head)
3963 (*head) = new_edit;
3964 }
3965 else
3966 {
3967 new_edit->next = *head;
3968
3969 if (!*tail)
3970 *tail = new_edit;
3971
3972 *head = new_edit;
3973 }
3974 }
3975
3976 static _tic6x_elf_section_data *
3977 get_tic6x_elf_section_data (asection * sec)
3978 {
3979 if (sec && sec->owner && is_tic6x_elf (sec->owner))
3980 return elf32_tic6x_section_data (sec);
3981 else
3982 return NULL;
3983 }
3984
3985
3986 /* Increase the size of EXIDX_SEC by ADJUST bytes. ADJUST must be negative. */
3987 static void
3988 elf32_tic6x_adjust_exidx_size (asection *exidx_sec, int adjust)
3989 {
3990 asection *out_sec;
3991
3992 if (!exidx_sec->rawsize)
3993 exidx_sec->rawsize = exidx_sec->size;
3994
3995 bfd_set_section_size (exidx_sec->owner, exidx_sec, exidx_sec->size + adjust);
3996 out_sec = exidx_sec->output_section;
3997 /* Adjust size of output section. */
3998 bfd_set_section_size (out_sec->owner, out_sec, out_sec->size +adjust);
3999 }
4000
4001 /* Insert an EXIDX_CANTUNWIND marker at the end of a section. */
4002 static void
4003 elf32_tic6x_insert_cantunwind_after (asection *text_sec, asection *exidx_sec)
4004 {
4005 struct _tic6x_elf_section_data *exidx_data;
4006
4007 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4008 elf32_tic6x_add_unwind_table_edit (
4009 &exidx_data->u.exidx.unwind_edit_list,
4010 &exidx_data->u.exidx.unwind_edit_tail,
4011 INSERT_EXIDX_CANTUNWIND_AT_END, text_sec, UINT_MAX);
4012
4013 elf32_tic6x_adjust_exidx_size (exidx_sec, 8);
4014 }
4015
4016 /* Scan .cx6abi.exidx tables, and create a list describing edits which
4017 should be made to those tables, such that:
4018
4019 1. Regions without unwind data are marked with EXIDX_CANTUNWIND entries.
4020 2. Duplicate entries are merged together (EXIDX_CANTUNWIND, or unwind
4021 codes which have been inlined into the index).
4022
4023 If MERGE_EXIDX_ENTRIES is false, duplicate entries are not merged.
4024
4025 The edits are applied when the tables are written
4026 (in elf32_tic6x_write_section).
4027 */
4028
4029 bfd_boolean
4030 elf32_tic6x_fix_exidx_coverage (asection **text_section_order,
4031 unsigned int num_text_sections,
4032 struct bfd_link_info *info,
4033 bfd_boolean merge_exidx_entries)
4034 {
4035 bfd *inp;
4036 unsigned int last_second_word = 0, i;
4037 asection *last_exidx_sec = NULL;
4038 asection *last_text_sec = NULL;
4039 int last_unwind_type = -1;
4040
4041 /* Walk over all EXIDX sections, and create backlinks from the corrsponding
4042 text sections. */
4043 for (inp = info->input_bfds; inp != NULL; inp = inp->link.next)
4044 {
4045 asection *sec;
4046
4047 for (sec = inp->sections; sec != NULL; sec = sec->next)
4048 {
4049 struct bfd_elf_section_data *elf_sec = elf_section_data (sec);
4050 Elf_Internal_Shdr *hdr = &elf_sec->this_hdr;
4051
4052 if (!hdr || hdr->sh_type != SHT_C6000_UNWIND)
4053 continue;
4054
4055 if (elf_sec->linked_to)
4056 {
4057 Elf_Internal_Shdr *linked_hdr
4058 = &elf_section_data (elf_sec->linked_to)->this_hdr;
4059 struct _tic6x_elf_section_data *linked_sec_tic6x_data
4060 = get_tic6x_elf_section_data (linked_hdr->bfd_section);
4061
4062 if (linked_sec_tic6x_data == NULL)
4063 continue;
4064
4065 /* Link this .c6xabi.exidx section back from the
4066 text section it describes. */
4067 linked_sec_tic6x_data->u.text.tic6x_exidx_sec = sec;
4068 }
4069 }
4070 }
4071
4072 /* Walk all text sections in order of increasing VMA. Eilminate duplicate
4073 index table entries (EXIDX_CANTUNWIND and inlined unwind opcodes),
4074 and add EXIDX_CANTUNWIND entries for sections with no unwind table data. */
4075
4076 for (i = 0; i < num_text_sections; i++)
4077 {
4078 asection *sec = text_section_order[i];
4079 asection *exidx_sec;
4080 struct _tic6x_elf_section_data *tic6x_data
4081 = get_tic6x_elf_section_data (sec);
4082 struct _tic6x_elf_section_data *exidx_data;
4083 bfd_byte *contents = NULL;
4084 int deleted_exidx_bytes = 0;
4085 bfd_vma j;
4086 tic6x_unwind_table_edit *unwind_edit_head = NULL;
4087 tic6x_unwind_table_edit *unwind_edit_tail = NULL;
4088 Elf_Internal_Shdr *hdr;
4089 bfd *ibfd;
4090
4091 if (tic6x_data == NULL)
4092 continue;
4093
4094 exidx_sec = tic6x_data->u.text.tic6x_exidx_sec;
4095 if (exidx_sec == NULL)
4096 {
4097 /* Section has no unwind data. */
4098 if (last_unwind_type == 0 || !last_exidx_sec)
4099 continue;
4100
4101 /* Ignore zero sized sections. */
4102 if (sec->size == 0)
4103 continue;
4104
4105 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4106 last_unwind_type = 0;
4107 continue;
4108 }
4109
4110 /* Skip /DISCARD/ sections. */
4111 if (bfd_is_abs_section (exidx_sec->output_section))
4112 continue;
4113
4114 hdr = &elf_section_data (exidx_sec)->this_hdr;
4115 if (hdr->sh_type != SHT_C6000_UNWIND)
4116 continue;
4117
4118 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4119 if (exidx_data == NULL)
4120 continue;
4121
4122 ibfd = exidx_sec->owner;
4123
4124 if (hdr->contents != NULL)
4125 contents = hdr->contents;
4126 else if (! bfd_malloc_and_get_section (ibfd, exidx_sec, &contents))
4127 /* An error? */
4128 continue;
4129
4130 for (j = 0; j < hdr->sh_size; j += 8)
4131 {
4132 unsigned int second_word = bfd_get_32 (ibfd, contents + j + 4);
4133 int unwind_type;
4134 int elide = 0;
4135
4136 /* An EXIDX_CANTUNWIND entry. */
4137 if (second_word == 1)
4138 {
4139 if (last_unwind_type == 0)
4140 elide = 1;
4141 unwind_type = 0;
4142 }
4143 /* Inlined unwinding data. Merge if equal to previous. */
4144 else if ((second_word & 0x80000000) != 0)
4145 {
4146 if (merge_exidx_entries
4147 && last_second_word == second_word
4148 && last_unwind_type == 1)
4149 elide = 1;
4150 unwind_type = 1;
4151 last_second_word = second_word;
4152 }
4153 /* Normal table entry. In theory we could merge these too,
4154 but duplicate entries are likely to be much less common. */
4155 else
4156 unwind_type = 2;
4157
4158 if (elide)
4159 {
4160 elf32_tic6x_add_unwind_table_edit (&unwind_edit_head,
4161 &unwind_edit_tail, DELETE_EXIDX_ENTRY, NULL, j / 8);
4162
4163 deleted_exidx_bytes += 8;
4164 }
4165
4166 last_unwind_type = unwind_type;
4167 }
4168
4169 /* Free contents if we allocated it ourselves. */
4170 if (contents != hdr->contents)
4171 free (contents);
4172
4173 /* Record edits to be applied later (in elf32_tic6x_write_section). */
4174 exidx_data->u.exidx.unwind_edit_list = unwind_edit_head;
4175 exidx_data->u.exidx.unwind_edit_tail = unwind_edit_tail;
4176
4177 if (deleted_exidx_bytes > 0)
4178 elf32_tic6x_adjust_exidx_size (exidx_sec, -deleted_exidx_bytes);
4179
4180 last_exidx_sec = exidx_sec;
4181 last_text_sec = sec;
4182 }
4183
4184 /* Add terminating CANTUNWIND entry. */
4185 if (last_exidx_sec && last_unwind_type != 0)
4186 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4187
4188 return TRUE;
4189 }
4190
4191 /* Add ADDEND to lower 31 bits of VAL, leaving other bits unmodified. */
4192
4193 static unsigned long
4194 elf32_tic6x_add_low31 (unsigned long val, bfd_vma addend)
4195 {
4196 return (val & ~0x7ffffffful) | ((val + addend) & 0x7ffffffful);
4197 }
4198
4199 /* Copy an .c6xabi.exidx table entry, adding OFFSET to (applied) PREL31
4200 relocations. OFFSET is in bytes, and will be scaled before encoding. */
4201
4202
4203 static void
4204 elf32_tic6x_copy_exidx_entry (bfd *output_bfd, bfd_byte *to, bfd_byte *from,
4205 bfd_vma offset)
4206 {
4207 unsigned long first_word = bfd_get_32 (output_bfd, from);
4208 unsigned long second_word = bfd_get_32 (output_bfd, from + 4);
4209
4210 offset >>= 1;
4211 /* High bit of first word is supposed to be zero. */
4212 if ((first_word & 0x80000000ul) == 0)
4213 first_word = elf32_tic6x_add_low31 (first_word, offset);
4214
4215 /* If the high bit of the first word is clear, and the bit pattern is not 0x1
4216 (EXIDX_CANTUNWIND), this is an offset to an .c6xabi.extab entry. */
4217 if ((second_word != 0x1) && ((second_word & 0x80000000ul) == 0))
4218 second_word = elf32_tic6x_add_low31 (second_word, offset);
4219
4220 bfd_put_32 (output_bfd, first_word, to);
4221 bfd_put_32 (output_bfd, second_word, to + 4);
4222 }
4223
4224 /* Do the actual mangling of exception index tables. */
4225
4226 static bfd_boolean
4227 elf32_tic6x_write_section (bfd *output_bfd,
4228 struct bfd_link_info *link_info,
4229 asection *sec,
4230 bfd_byte *contents)
4231 {
4232 _tic6x_elf_section_data *tic6x_data;
4233 struct elf32_tic6x_link_hash_table *globals
4234 = elf32_tic6x_hash_table (link_info);
4235 bfd_vma offset = sec->output_section->vma + sec->output_offset;
4236
4237 if (globals == NULL)
4238 return FALSE;
4239
4240 /* If this section has not been allocated an _tic6x_elf_section_data
4241 structure then we cannot record anything. */
4242 tic6x_data = get_tic6x_elf_section_data (sec);
4243 if (tic6x_data == NULL)
4244 return FALSE;
4245
4246 if (tic6x_data->elf.this_hdr.sh_type != SHT_C6000_UNWIND)
4247 return FALSE;
4248
4249 tic6x_unwind_table_edit *edit_node
4250 = tic6x_data->u.exidx.unwind_edit_list;
4251 /* Now, sec->size is the size of the section we will write. The original
4252 size (before we merged duplicate entries and inserted EXIDX_CANTUNWIND
4253 markers) was sec->rawsize. (This isn't the case if we perform no
4254 edits, then rawsize will be zero and we should use size). */
4255 bfd_byte *edited_contents = (bfd_byte *) bfd_malloc (sec->size);
4256 unsigned int input_size = sec->rawsize ? sec->rawsize : sec->size;
4257 unsigned int in_index, out_index;
4258 bfd_vma add_to_offsets = 0;
4259
4260 for (in_index = 0, out_index = 0; in_index * 8 < input_size || edit_node;)
4261 {
4262 if (edit_node)
4263 {
4264 unsigned int edit_index = edit_node->index;
4265
4266 if (in_index < edit_index && in_index * 8 < input_size)
4267 {
4268 elf32_tic6x_copy_exidx_entry (output_bfd,
4269 edited_contents + out_index * 8,
4270 contents + in_index * 8, add_to_offsets);
4271 out_index++;
4272 in_index++;
4273 }
4274 else if (in_index == edit_index
4275 || (in_index * 8 >= input_size
4276 && edit_index == UINT_MAX))
4277 {
4278 switch (edit_node->type)
4279 {
4280 case DELETE_EXIDX_ENTRY:
4281 in_index++;
4282 add_to_offsets += 8;
4283 break;
4284
4285 case INSERT_EXIDX_CANTUNWIND_AT_END:
4286 {
4287 asection *text_sec = edit_node->linked_section;
4288 bfd_vma text_offset = text_sec->output_section->vma
4289 + text_sec->output_offset
4290 + text_sec->size;
4291 bfd_vma exidx_offset = offset + out_index * 8;
4292 unsigned long prel31_offset;
4293
4294 /* Note: this is meant to be equivalent to an
4295 R_C6000_PREL31 relocation. These synthetic
4296 EXIDX_CANTUNWIND markers are not relocated by the
4297 usual BFD method. */
4298 prel31_offset = ((text_offset - exidx_offset) >> 1)
4299 & 0x7ffffffful;
4300
4301 /* First address we can't unwind. */
4302 bfd_put_32 (output_bfd, prel31_offset,
4303 &edited_contents[out_index * 8]);
4304
4305 /* Code for EXIDX_CANTUNWIND. */
4306 bfd_put_32 (output_bfd, 0x1,
4307 &edited_contents[out_index * 8 + 4]);
4308
4309 out_index++;
4310 add_to_offsets -= 8;
4311 }
4312 break;
4313 }
4314
4315 edit_node = edit_node->next;
4316 }
4317 }
4318 else
4319 {
4320 /* No more edits, copy remaining entries verbatim. */
4321 elf32_tic6x_copy_exidx_entry (output_bfd,
4322 edited_contents + out_index * 8,
4323 contents + in_index * 8, add_to_offsets);
4324 out_index++;
4325 in_index++;
4326 }
4327 }
4328
4329 if (!(sec->flags & SEC_EXCLUDE) && !(sec->flags & SEC_NEVER_LOAD))
4330 bfd_set_section_contents (output_bfd, sec->output_section,
4331 edited_contents,
4332 (file_ptr) sec->output_offset, sec->size);
4333
4334 return TRUE;
4335 }
4336
4337 #define TARGET_LITTLE_SYM tic6x_elf32_le_vec
4338 #define TARGET_LITTLE_NAME "elf32-tic6x-le"
4339 #define TARGET_BIG_SYM tic6x_elf32_be_vec
4340 #define TARGET_BIG_NAME "elf32-tic6x-be"
4341 #define ELF_ARCH bfd_arch_tic6x
4342 #define ELF_TARGET_ID TIC6X_ELF_DATA
4343 #define ELF_MACHINE_CODE EM_TI_C6000
4344 #define ELF_MAXPAGESIZE 0x1000
4345 #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
4346 #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
4347 #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
4348 #define bfd_elf32_mkobject elf32_tic6x_mkobject
4349 #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
4350 #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
4351 #define elf_backend_stack_align 8
4352 #define elf_backend_can_gc_sections 1
4353 #define elf_backend_default_use_rela_p 1
4354 #define elf_backend_may_use_rel_p 1
4355 #define elf_backend_may_use_rela_p 1
4356 #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
4357 #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
4358 #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
4359 #define elf_backend_obj_attrs_section ".c6xabi.attributes"
4360 #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
4361 #define elf_backend_obj_attrs_vendor "c6xabi"
4362 #define elf_backend_can_refcount 1
4363 #define elf_backend_want_got_plt 1
4364 #define elf_backend_want_dynbss 1
4365 #define elf_backend_want_dynrelro 1
4366 #define elf_backend_plt_readonly 1
4367 #define elf_backend_rela_normal 1
4368 #define elf_backend_got_header_size 8
4369 #define elf_backend_fake_sections elf32_tic6x_fake_sections
4370 #define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections
4371 #define elf_backend_create_dynamic_sections \
4372 elf32_tic6x_create_dynamic_sections
4373 #define elf_backend_adjust_dynamic_symbol \
4374 elf32_tic6x_adjust_dynamic_symbol
4375 #define elf_backend_check_relocs elf32_tic6x_check_relocs
4376 #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
4377 #define elf_backend_symbol_processing elf32_tic6x_symbol_processing
4378 #define elf_backend_link_output_symbol_hook \
4379 elf32_tic6x_link_output_symbol_hook
4380 #define elf_backend_section_from_bfd_section \
4381 elf32_tic6x_section_from_bfd_section
4382 #define elf_backend_relocate_section elf32_tic6x_relocate_section
4383 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
4384 #define elf_backend_finish_dynamic_symbol \
4385 elf32_tic6x_finish_dynamic_symbol
4386 #define elf_backend_always_size_sections \
4387 elf32_tic6x_always_size_sections
4388 #define elf_backend_size_dynamic_sections \
4389 elf32_tic6x_size_dynamic_sections
4390 #define elf_backend_finish_dynamic_sections \
4391 elf32_tic6x_finish_dynamic_sections
4392 #define bfd_elf32_bfd_final_link \
4393 elf32_tic6x_final_link
4394 #define elf_backend_write_section elf32_tic6x_write_section
4395 #define elf_info_to_howto elf32_tic6x_info_to_howto
4396 #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
4397
4398 #undef elf_backend_omit_section_dynsym
4399 #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
4400 #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
4401
4402 #include "elf32-target.h"
4403
4404 #undef elf32_bed
4405 #define elf32_bed elf32_tic6x_linux_bed
4406
4407 #undef TARGET_LITTLE_SYM
4408 #define TARGET_LITTLE_SYM tic6x_elf32_linux_le_vec
4409 #undef TARGET_LITTLE_NAME
4410 #define TARGET_LITTLE_NAME "elf32-tic6x-linux-le"
4411 #undef TARGET_BIG_SYM
4412 #define TARGET_BIG_SYM tic6x_elf32_linux_be_vec
4413 #undef TARGET_BIG_NAME
4414 #define TARGET_BIG_NAME "elf32-tic6x-linux-be"
4415 #undef ELF_OSABI
4416 #define ELF_OSABI ELFOSABI_C6000_LINUX
4417
4418 #include "elf32-target.h"
4419
4420 #undef elf32_bed
4421 #define elf32_bed elf32_tic6x_elf_bed
4422
4423 #undef TARGET_LITTLE_SYM
4424 #define TARGET_LITTLE_SYM tic6x_elf32_c6000_le_vec
4425 #undef TARGET_LITTLE_NAME
4426 #define TARGET_LITTLE_NAME "elf32-tic6x-elf-le"
4427 #undef TARGET_BIG_SYM
4428 #define TARGET_BIG_SYM tic6x_elf32_c6000_be_vec
4429 #undef TARGET_BIG_NAME
4430 #define TARGET_BIG_NAME "elf32-tic6x-elf-be"
4431 #undef ELF_OSABI
4432 #define ELF_OSABI ELFOSABI_C6000_ELFABI
4433
4434 #include "elf32-target.h"
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