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Delete duplicate target short-cuts to dynamic sections
[deliverable/binutils-gdb.git] / bfd / elf32-tic6x.c
CommitLineData
40b36596 1/* 32-bit ELF support for TI C6X
6f2750fe 2 Copyright (C) 2010-2016 Free Software Foundation, Inc.
c0621d88
NS		 3 Contributed by Joseph Myers <joseph@codesourcery.com>
4 Bernd Schmidt <bernds@codesourcery.com>
40b36596
JM		 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"
fbd9ad90 24#include <limits.h>
40b36596
JM		 25#include "bfd.h"
26#include "libbfd.h"
27#include "libiberty.h"
28#include "elf-bfd.h"
29#include "elf/tic6x.h"
41820509
JM		 30#include "elf32-tic6x.h"
31
ac145307
BS		 32#define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0"
33
34/* DSBT binaries have a default 128K stack. */
35#define DEFAULT_STACK_SIZE 0x20000
36
37/* The size in bytes of an entry in the procedure linkage table. */
38#define PLT_ENTRY_SIZE 24
39
40/* TI C6X ELF linker hash table. */
41
42struct elf32_tic6x_link_hash_table
43{
44 struct elf_link_hash_table elf;
45
46 /* Short-cuts to get to dynamic linker sections. */
47 asection *sdynbss;
48 asection *srelbss;
49
50 /* C6X specific command line arguments. */
51 struct elf32_tic6x_params params;
52
53 /* Small local sym cache. */
54 struct sym_cache sym_cache;
55
56 /* The output BFD, for convenience. */
57 bfd *obfd;
58
59 /* The .dsbt section. */
60 asection *dsbt;
61};
62
63/* Get the TI C6X ELF linker hash table from a link_info structure. */
64
65#define elf32_tic6x_hash_table(p) \
66 ((struct elf32_tic6x_link_hash_table *) ((p)->hash))
67
68/* TI C6X ELF linker hash entry. */
69
70struct elf32_tic6x_link_hash_entry
71{
72 struct elf_link_hash_entry elf;
73
74 /* Track dynamic relocs copied for this symbol. */
75 struct elf_dyn_relocs *dyn_relocs;
76};
77
fbd9ad90
PB		 78typedef enum
79{
80 DELETE_EXIDX_ENTRY,
81 INSERT_EXIDX_CANTUNWIND_AT_END
82}
83tic6x_unwind_edit_type;
84
85/* A (sorted) list of edits to apply to an unwind table. */
86typedef struct tic6x_unwind_table_edit
87{
88 tic6x_unwind_edit_type type;
89 /* Note: we sometimes want to insert an unwind entry corresponding to a
90 section different from the one we're currently writing out, so record the
91 (text) section this edit relates to here. */
92 asection *linked_section;
93 unsigned int index;
94 struct tic6x_unwind_table_edit *next;
95}
96tic6x_unwind_table_edit;
97
98typedef struct _tic6x_elf_section_data
99{
100 /* Information about mapping symbols. */
101 struct bfd_elf_section_data elf;
102 /* Information about unwind tables. */
103 union
104 {
105 /* Unwind info attached to a text section. */
106 struct
107 {
108 asection *tic6x_exidx_sec;
109 } text;
110
111 /* Unwind info attached to an .c6xabi.exidx section. */
112 struct
113 {
114 tic6x_unwind_table_edit *unwind_edit_list;
115 tic6x_unwind_table_edit *unwind_edit_tail;
116 } exidx;
117 } u;
118}
119_tic6x_elf_section_data;
120
121#define elf32_tic6x_section_data(sec) \
122 ((_tic6x_elf_section_data *) elf_section_data (sec))
123
41820509
JM		 124struct elf32_tic6x_obj_tdata
125{
126 struct elf_obj_tdata root;
127
128 /* Whether to use RELA relocations when generating relocations.
129 This is a per-object flag to allow the assembler to generate REL
130 relocations for use in linker testcases. */
131 bfd_boolean use_rela_p;
132};
133
134#define elf32_tic6x_tdata(abfd) \
135 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
40b36596 136
ac145307
BS		 137#define is_tic6x_elf(bfd) \
138 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
139 && elf_tdata (bfd) != NULL \
140 && elf_object_id (bfd) == TIC6X_ELF_DATA)
141
142/* C6X ELF uses two common sections. One is the usual one, and the
143 other is for small objects. All the small objects are kept
144 together, and then referenced via the gp pointer, which yields
145 faster assembler code. This is what we use for the small common
146 section. This approach is copied from ecoff.c. */
147static asection tic6x_elf_scom_section;
148static asymbol tic6x_elf_scom_symbol;
149static asymbol *tic6x_elf_scom_symbol_ptr;
150
40b36596
JM		 151static reloc_howto_type elf32_tic6x_howto_table[] =
152{
153 HOWTO (R_C6000_NONE, /* type */
154 0, /* rightshift */
6346d5ca 155 3, /* size (0 = byte, 1 = short, 2 = long) */
40b36596
JM		 156 0, /* bitsize */
157 FALSE, /* pc_relative */
158 0, /* bitpos */
159 complain_overflow_dont,/* complain_on_overflow */
160 bfd_elf_generic_reloc, /* special_function */
161 "R_C6000_NONE", /* name */
41820509
JM		 162 FALSE, /* partial_inplace */
163 0, /* src_mask */
164 0, /* dst_mask */
165 FALSE), /* pcrel_offset */
166 HOWTO (R_C6000_ABS32, /* type */
167 0, /* rightshift */
168 2, /* size (0 = byte, 1 = short, 2 = long) */
169 32, /* bitsize */
170 FALSE, /* pc_relative */
171 0, /* bitpos */
172 complain_overflow_dont,/* complain_on_overflow */
173 bfd_elf_generic_reloc, /* special_function */
174 "R_C6000_ABS32", /* name */
175 FALSE, /* partial_inplace */
176 0, /* src_mask */
177 0xffffffff, /* dst_mask */
178 FALSE), /* pcrel_offset */
179 HOWTO (R_C6000_ABS16, /* type */
180 0, /* rightshift */
181 1, /* size (0 = byte, 1 = short, 2 = long) */
182 16, /* bitsize */
183 FALSE, /* pc_relative */
184 0, /* bitpos */
185 complain_overflow_bitfield,/* complain_on_overflow */
186 bfd_elf_generic_reloc, /* special_function */
187 "R_C6000_ABS16", /* name */
188 FALSE, /* partial_inplace */
189 0, /* src_mask */
190 0x0000ffff, /* dst_mask */
191 FALSE), /* pcrel_offset */
192 HOWTO (R_C6000_ABS8, /* type */
193 0, /* rightshift */
194 0, /* size (0 = byte, 1 = short, 2 = long) */
195 8, /* bitsize */
196 FALSE, /* pc_relative */
197 0, /* bitpos */
198 complain_overflow_bitfield,/* complain_on_overflow */
199 bfd_elf_generic_reloc, /* special_function */
200 "R_C6000_ABS8", /* name */
201 FALSE, /* partial_inplace */
202 0, /* src_mask */
203 0x000000ff, /* dst_mask */
204 FALSE), /* pcrel_offset */
205 HOWTO (R_C6000_PCR_S21, /* type */
206 2, /* rightshift */
207 2, /* size (0 = byte, 1 = short, 2 = long) */
208 21, /* bitsize */
209 TRUE, /* pc_relative */
210 7, /* bitpos */
211 complain_overflow_signed,/* complain_on_overflow */
212 bfd_elf_generic_reloc, /* special_function */
213 "R_C6000_PCR_S21", /* name */
214 FALSE, /* partial_inplace */
215 0, /* src_mask */
216 0x0fffff80, /* dst_mask */
217 TRUE), /* pcrel_offset */
218 HOWTO (R_C6000_PCR_S12, /* type */
219 2, /* rightshift */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
221 12, /* bitsize */
222 TRUE, /* pc_relative */
223 16, /* bitpos */
224 complain_overflow_signed,/* complain_on_overflow */
225 bfd_elf_generic_reloc, /* special_function */
226 "R_C6000_PCR_S12", /* name */
227 FALSE, /* partial_inplace */
228 0, /* src_mask */
229 0x0fff0000, /* dst_mask */
230 TRUE), /* pcrel_offset */
231 HOWTO (R_C6000_PCR_S10, /* type */
232 2, /* rightshift */
233 2, /* size (0 = byte, 1 = short, 2 = long) */
234 10, /* bitsize */
235 TRUE, /* pc_relative */
236 13, /* bitpos */
237 complain_overflow_signed,/* complain_on_overflow */
238 bfd_elf_generic_reloc, /* special_function */
239 "R_C6000_PCR_S10", /* name */
240 FALSE, /* partial_inplace */
241 0, /* src_mask */
242 0x007fe000, /* dst_mask */
243 TRUE), /* pcrel_offset */
244 HOWTO (R_C6000_PCR_S7, /* type */
245 2, /* rightshift */
246 2, /* size (0 = byte, 1 = short, 2 = long) */
247 7, /* bitsize */
248 TRUE, /* pc_relative */
249 16, /* bitpos */
250 complain_overflow_signed,/* complain_on_overflow */
251 bfd_elf_generic_reloc, /* special_function */
252 "R_C6000_PCR_S7", /* name */
253 FALSE, /* partial_inplace */
254 0, /* src_mask */
255 0x007f0000, /* dst_mask */
256 TRUE), /* pcrel_offset */
257 HOWTO (R_C6000_ABS_S16, /* type */
258 0, /* rightshift */
259 2, /* size (0 = byte, 1 = short, 2 = long) */
260 16, /* bitsize */
261 FALSE, /* pc_relative */
262 7, /* bitpos */
263 complain_overflow_signed,/* complain_on_overflow */
264 bfd_elf_generic_reloc, /* special_function */
265 "R_C6000_ABS_S16", /* name */
266 FALSE, /* partial_inplace */
267 0, /* src_mask */
268 0x007fff80, /* dst_mask */
269 FALSE), /* pcrel_offset */
270 HOWTO (R_C6000_ABS_L16, /* type */
271 0, /* rightshift */
272 2, /* size (0 = byte, 1 = short, 2 = long) */
273 16, /* bitsize */
274 FALSE, /* pc_relative */
275 7, /* bitpos */
276 complain_overflow_dont,/* complain_on_overflow */
277 bfd_elf_generic_reloc, /* special_function */
278 "R_C6000_ABS_L16", /* name */
279 FALSE, /* partial_inplace */
280 0, /* src_mask */
281 0x007fff80, /* dst_mask */
282 FALSE), /* pcrel_offset */
283 HOWTO (R_C6000_ABS_H16, /* type */
284 16, /* rightshift */
285 2, /* size (0 = byte, 1 = short, 2 = long) */
286 16, /* bitsize */
287 FALSE, /* pc_relative */
288 7, /* bitpos */
289 complain_overflow_dont,/* complain_on_overflow */
290 bfd_elf_generic_reloc, /* special_function */
291 "R_C6000_ABS_H16", /* name */
292 FALSE, /* partial_inplace */
293 0, /* src_mask */
294 0x007fff80, /* dst_mask */
295 FALSE), /* pcrel_offset */
296 HOWTO (R_C6000_SBR_U15_B, /* type */
297 0, /* rightshift */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
299 15, /* bitsize */
300 FALSE, /* pc_relative */
301 8, /* bitpos */
302 complain_overflow_unsigned,/* complain_on_overflow */
303 bfd_elf_generic_reloc, /* special_function */
304 "R_C6000_SBR_U15_B", /* name */
305 FALSE, /* partial_inplace */
306 0, /* src_mask */
307 0x007fff00, /* dst_mask */
308 FALSE), /* pcrel_offset */
309 HOWTO (R_C6000_SBR_U15_H, /* type */
310 1, /* rightshift */
311 2, /* size (0 = byte, 1 = short, 2 = long) */
312 15, /* bitsize */
313 FALSE, /* pc_relative */
314 8, /* bitpos */
315 complain_overflow_unsigned,/* complain_on_overflow */
316 bfd_elf_generic_reloc, /* special_function */
317 "R_C6000_SBR_U15_H", /* name */
318 FALSE, /* partial_inplace */
319 0, /* src_mask */
320 0x007fff00, /* dst_mask */
321 FALSE), /* pcrel_offset */
322 HOWTO (R_C6000_SBR_U15_W, /* type */
323 2, /* rightshift */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
325 15, /* bitsize */
326 FALSE, /* pc_relative */
327 8, /* bitpos */
328 complain_overflow_unsigned,/* complain_on_overflow */
329 bfd_elf_generic_reloc, /* special_function */
330 "R_C6000_SBR_U15_W", /* name */
331 FALSE, /* partial_inplace */
332 0, /* src_mask */
333 0x007fff00, /* dst_mask */
334 FALSE), /* pcrel_offset */
335 HOWTO (R_C6000_SBR_S16, /* type */
336 0, /* rightshift */
337 2, /* size (0 = byte, 1 = short, 2 = long) */
338 16, /* bitsize */
339 FALSE, /* pc_relative */
340 7, /* bitpos */
341 complain_overflow_signed,/* complain_on_overflow */
342 bfd_elf_generic_reloc, /* special_function */
343 "R_C6000_SBR_S16", /* name */
344 FALSE, /* partial_inplace */
345 0, /* src_mask */
346 0x007fff80, /* dst_mask */
347 FALSE), /* pcrel_offset */
348 HOWTO (R_C6000_SBR_L16_B, /* type */
349 0, /* rightshift */
350 2, /* size (0 = byte, 1 = short, 2 = long) */
351 16, /* bitsize */
352 FALSE, /* pc_relative */
353 7, /* bitpos */
354 complain_overflow_dont,/* complain_on_overflow */
355 bfd_elf_generic_reloc, /* special_function */
356 "R_C6000_SBR_L16_B", /* name */
357 FALSE, /* partial_inplace */
358 0, /* src_mask */
359 0x007fff80, /* dst_mask */
360 FALSE), /* pcrel_offset */
361 HOWTO (R_C6000_SBR_L16_H, /* type */
362 1, /* rightshift */
363 2, /* size (0 = byte, 1 = short, 2 = long) */
364 16, /* bitsize */
365 FALSE, /* pc_relative */
366 7, /* bitpos */
367 complain_overflow_dont,/* complain_on_overflow */
368 bfd_elf_generic_reloc, /* special_function */
369 "R_C6000_SBR_L16_H", /* name */
370 FALSE, /* partial_inplace */
371 0, /* src_mask */
372 0x007fff80, /* dst_mask */
373 FALSE), /* pcrel_offset */
374 HOWTO (R_C6000_SBR_L16_W, /* type */
375 2, /* rightshift */
376 2, /* size (0 = byte, 1 = short, 2 = long) */
377 16, /* bitsize */
378 FALSE, /* pc_relative */
379 7, /* bitpos */
380 complain_overflow_dont,/* complain_on_overflow */
381 bfd_elf_generic_reloc, /* special_function */
382 "R_C6000_SBR_L16_W", /* name */
383 FALSE, /* partial_inplace */
384 0, /* src_mask */
385 0x007fff80, /* dst_mask */
386 FALSE), /* pcrel_offset */
387 HOWTO (R_C6000_SBR_H16_B, /* type */
388 16, /* rightshift */
389 2, /* size (0 = byte, 1 = short, 2 = long) */
390 16, /* bitsize */
391 FALSE, /* pc_relative */
392 7, /* bitpos */
393 complain_overflow_dont,/* complain_on_overflow */
394 bfd_elf_generic_reloc, /* special_function */
395 "R_C6000_SBR_H16_B", /* name */
396 FALSE, /* partial_inplace */
397 0, /* src_mask */
398 0x007fff80, /* dst_mask */
399 FALSE), /* pcrel_offset */
400 HOWTO (R_C6000_SBR_H16_H, /* type */
401 17, /* rightshift */
402 2, /* size (0 = byte, 1 = short, 2 = long) */
403 16, /* bitsize */
404 FALSE, /* pc_relative */
405 7, /* bitpos */
406 complain_overflow_dont,/* complain_on_overflow */
407 bfd_elf_generic_reloc, /* special_function */
408 "R_C6000_SBR_H16_H", /* name */
409 FALSE, /* partial_inplace */
410 0, /* src_mask */
411 0x007fff80, /* dst_mask */
412 FALSE), /* pcrel_offset */
413 HOWTO (R_C6000_SBR_H16_W, /* type */
414 18, /* rightshift */
415 2, /* size (0 = byte, 1 = short, 2 = long) */
416 16, /* bitsize */
417 FALSE, /* pc_relative */
418 7, /* bitpos */
419 complain_overflow_dont,/* complain_on_overflow */
420 bfd_elf_generic_reloc, /* special_function */
421 "R_C6000_SBR_H16_W", /* name */
422 FALSE, /* partial_inplace */
423 0, /* src_mask */
424 0x007fff80, /* dst_mask */
425 FALSE), /* pcrel_offset */
426 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
427 2, /* rightshift */
428 2, /* size (0 = byte, 1 = short, 2 = long) */
429 15, /* bitsize */
430 FALSE, /* pc_relative */
431 8, /* bitpos */
432 complain_overflow_unsigned,/* complain_on_overflow */
433 bfd_elf_generic_reloc, /* special_function */
434 "R_C6000_SBR_GOT_U15_W",/* name */
435 FALSE, /* partial_inplace */
436 0, /* src_mask */
437 0x007fff00, /* dst_mask */
438 FALSE), /* pcrel_offset */
439 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
440 2, /* rightshift */
441 2, /* size (0 = byte, 1 = short, 2 = long) */
442 16, /* bitsize */
443 FALSE, /* pc_relative */
444 7, /* bitpos */
445 complain_overflow_dont,/* complain_on_overflow */
446 bfd_elf_generic_reloc, /* special_function */
447 "R_C6000_SBR_GOT_L16_W",/* name */
448 FALSE, /* partial_inplace */
449 0, /* src_mask */
450 0x007fff80, /* dst_mask */
451 FALSE), /* pcrel_offset */
452 HOWTO (R_C6000_SBR_GOT_H16_W, /* type */
453 18, /* rightshift */
454 2, /* size (0 = byte, 1 = short, 2 = long) */
455 16, /* bitsize */
456 FALSE, /* pc_relative */
457 7, /* bitpos */
458 complain_overflow_dont,/* complain_on_overflow */
459 bfd_elf_generic_reloc, /* special_function */
460 "R_C6000_SBR_GOT_H16_W",/* name */
461 FALSE, /* partial_inplace */
462 0, /* src_mask */
463 0x007fff80, /* dst_mask */
464 FALSE), /* pcrel_offset */
465 HOWTO (R_C6000_DSBT_INDEX, /* type */
466 0, /* rightshift */
467 2, /* size (0 = byte, 1 = short, 2 = long) */
468 15, /* bitsize */
469 FALSE, /* pc_relative */
470 8, /* bitpos */
471 complain_overflow_unsigned,/* complain_on_overflow */
472 bfd_elf_generic_reloc, /* special_function */
473 "R_C6000_DSBT_INDEX", /* name */
474 FALSE, /* partial_inplace */
475 0, /* src_mask */
476 0x007fff00, /* dst_mask */
477 FALSE), /* pcrel_offset */
478 HOWTO (R_C6000_PREL31, /* type */
479 1, /* rightshift */
480 2, /* size (0 = byte, 1 = short, 2 = long) */
481 31, /* bitsize */
44e87ece 482 TRUE, /* pc_relative */
41820509
JM		 483 0, /* bitpos */
484 complain_overflow_dont,/* complain_on_overflow */
485 bfd_elf_generic_reloc, /* special_function */
486 "R_C6000_PREL31", /* name */
487 FALSE, /* partial_inplace */
488 0, /* src_mask */
489 0x7fffffff, /* dst_mask */
44e87ece 490 TRUE), /* pcrel_offset */
41820509
JM		 491 HOWTO (R_C6000_COPY, /* type */
492 0, /* rightshift */
493 2, /* size (0 = byte, 1 = short, 2 = long) */
494 32, /* bitsize */
495 FALSE, /* pc_relative */
496 0, /* bitpos */
497 complain_overflow_dont,/* complain_on_overflow */
498 bfd_elf_generic_reloc, /* special_function */
499 "R_C6000_COPY", /* name */
500 FALSE, /* partial_inplace */
501 0, /* src_mask */
502 0xffffffff, /* dst_mask */
503 FALSE), /* pcrel_offset */
ac145307
BS		 504 HOWTO (R_C6000_JUMP_SLOT, /* type */
505 0, /* rightshift */
506 2, /* size (0 = byte, 1 = short, 2 = long) */
507 32, /* bitsize */
508 FALSE, /* pc_relative */
509 0, /* bitpos */
510 complain_overflow_dont,/* complain_on_overflow */
511 bfd_elf_generic_reloc, /* special_function */
512 "R_C6000_JUMP_SLOT", /* name */
513 FALSE, /* partial_inplace */
514 0, /* src_mask */
515 0xffffffff, /* dst_mask */
516 FALSE), /* pcrel_offset */
2fbb87f6
PB		 517 HOWTO (R_C6000_EHTYPE, /* type */
518 0, /* rightshift */
519 2, /* size (0 = byte, 1 = short, 2 = long) */
520 32, /* bitsize */
521 FALSE, /* pc_relative */
522 0, /* bitpos */
523 complain_overflow_dont,/* complain_on_overflow */
524 bfd_elf_generic_reloc, /* special_function */
525 "R_C6000_EHTYPE", /* name */
526 FALSE, /* partial_inplace */
527 0, /* src_mask */
528 0xffffffff, /* dst_mask */
529 FALSE), /* pcrel_offset */
4a732032
BS		 530 HOWTO (R_C6000_PCR_H16, /* type */
531 16, /* rightshift */
532 2, /* size (0 = byte, 1 = short, 2 = long) */
533 16, /* bitsize */
534 TRUE, /* pc_relative */
535 7, /* bitpos */
536 complain_overflow_dont,/* complain_on_overflow */
537 bfd_elf_generic_reloc, /* special_function */
538 "R_C6000_PCR_H16", /* name */
539 FALSE, /* partial_inplace */
540 0, /* src_mask */
541 0x007fff80, /* dst_mask */
542 TRUE), /* pcrel_offset */
543 HOWTO (R_C6000_PCR_L16, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 16, /* bitsize */
547 TRUE, /* pc_relative */
548 7, /* bitpos */
549 complain_overflow_dont,/* complain_on_overflow */
550 bfd_elf_generic_reloc, /* special_function */
551 "R_C6000_PCR_L16", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0x007fff80, /* dst_mask */
555 TRUE), /* pcrel_offset */
41820509
JM		 556 EMPTY_HOWTO (31),
557 EMPTY_HOWTO (32),
558 EMPTY_HOWTO (33),
559 EMPTY_HOWTO (34),
560 EMPTY_HOWTO (35),
561 EMPTY_HOWTO (36),
562 EMPTY_HOWTO (37),
563 EMPTY_HOWTO (38),
564 EMPTY_HOWTO (39),
565 EMPTY_HOWTO (40),
566 EMPTY_HOWTO (41),
567 EMPTY_HOWTO (42),
568 EMPTY_HOWTO (43),
569 EMPTY_HOWTO (44),
570 EMPTY_HOWTO (45),
571 EMPTY_HOWTO (46),
572 EMPTY_HOWTO (47),
573 EMPTY_HOWTO (48),
574 EMPTY_HOWTO (49),
575 EMPTY_HOWTO (50),
576 EMPTY_HOWTO (51),
577 EMPTY_HOWTO (52),
578 EMPTY_HOWTO (53),
579 EMPTY_HOWTO (54),
580 EMPTY_HOWTO (55),
581 EMPTY_HOWTO (56),
582 EMPTY_HOWTO (57),
583 EMPTY_HOWTO (58),
584 EMPTY_HOWTO (59),
585 EMPTY_HOWTO (60),
586 EMPTY_HOWTO (61),
587 EMPTY_HOWTO (62),
588 EMPTY_HOWTO (63),
589 EMPTY_HOWTO (64),
590 EMPTY_HOWTO (65),
591 EMPTY_HOWTO (66),
592 EMPTY_HOWTO (67),
593 EMPTY_HOWTO (68),
594 EMPTY_HOWTO (69),
595 EMPTY_HOWTO (70),
596 EMPTY_HOWTO (71),
597 EMPTY_HOWTO (72),
598 EMPTY_HOWTO (73),
599 EMPTY_HOWTO (74),
600 EMPTY_HOWTO (75),
601 EMPTY_HOWTO (76),
602 EMPTY_HOWTO (77),
603 EMPTY_HOWTO (78),
604 EMPTY_HOWTO (79),
605 EMPTY_HOWTO (80),
606 EMPTY_HOWTO (81),
607 EMPTY_HOWTO (82),
608 EMPTY_HOWTO (83),
609 EMPTY_HOWTO (84),
610 EMPTY_HOWTO (85),
611 EMPTY_HOWTO (86),
612 EMPTY_HOWTO (87),
613 EMPTY_HOWTO (88),
614 EMPTY_HOWTO (89),
615 EMPTY_HOWTO (90),
616 EMPTY_HOWTO (91),
617 EMPTY_HOWTO (92),
618 EMPTY_HOWTO (93),
619 EMPTY_HOWTO (94),
620 EMPTY_HOWTO (95),
621 EMPTY_HOWTO (96),
622 EMPTY_HOWTO (97),
623 EMPTY_HOWTO (98),
624 EMPTY_HOWTO (99),
625 EMPTY_HOWTO (100),
626 EMPTY_HOWTO (101),
627 EMPTY_HOWTO (102),
628 EMPTY_HOWTO (103),
629 EMPTY_HOWTO (104),
630 EMPTY_HOWTO (105),
631 EMPTY_HOWTO (106),
632 EMPTY_HOWTO (107),
633 EMPTY_HOWTO (108),
634 EMPTY_HOWTO (109),
635 EMPTY_HOWTO (110),
636 EMPTY_HOWTO (111),
637 EMPTY_HOWTO (112),
638 EMPTY_HOWTO (113),
639 EMPTY_HOWTO (114),
640 EMPTY_HOWTO (115),
641 EMPTY_HOWTO (116),
642 EMPTY_HOWTO (117),
643 EMPTY_HOWTO (118),
644 EMPTY_HOWTO (119),
645 EMPTY_HOWTO (120),
646 EMPTY_HOWTO (121),
647 EMPTY_HOWTO (122),
648 EMPTY_HOWTO (123),
649 EMPTY_HOWTO (124),
650 EMPTY_HOWTO (125),
651 EMPTY_HOWTO (126),
652 EMPTY_HOWTO (127),
653 EMPTY_HOWTO (128),
654 EMPTY_HOWTO (129),
655 EMPTY_HOWTO (130),
656 EMPTY_HOWTO (131),
657 EMPTY_HOWTO (132),
658 EMPTY_HOWTO (133),
659 EMPTY_HOWTO (134),
660 EMPTY_HOWTO (135),
661 EMPTY_HOWTO (136),
662 EMPTY_HOWTO (137),
663 EMPTY_HOWTO (138),
664 EMPTY_HOWTO (139),
665 EMPTY_HOWTO (140),
666 EMPTY_HOWTO (141),
667 EMPTY_HOWTO (142),
668 EMPTY_HOWTO (143),
669 EMPTY_HOWTO (144),
670 EMPTY_HOWTO (145),
671 EMPTY_HOWTO (146),
672 EMPTY_HOWTO (147),
673 EMPTY_HOWTO (148),
674 EMPTY_HOWTO (149),
675 EMPTY_HOWTO (150),
676 EMPTY_HOWTO (151),
677 EMPTY_HOWTO (152),
678 EMPTY_HOWTO (153),
679 EMPTY_HOWTO (154),
680 EMPTY_HOWTO (155),
681 EMPTY_HOWTO (156),
682 EMPTY_HOWTO (157),
683 EMPTY_HOWTO (158),
684 EMPTY_HOWTO (159),
685 EMPTY_HOWTO (160),
686 EMPTY_HOWTO (161),
687 EMPTY_HOWTO (162),
688 EMPTY_HOWTO (163),
689 EMPTY_HOWTO (164),
690 EMPTY_HOWTO (165),
691 EMPTY_HOWTO (166),
692 EMPTY_HOWTO (167),
693 EMPTY_HOWTO (168),
694 EMPTY_HOWTO (169),
695 EMPTY_HOWTO (170),
696 EMPTY_HOWTO (171),
697 EMPTY_HOWTO (172),
698 EMPTY_HOWTO (173),
699 EMPTY_HOWTO (174),
700 EMPTY_HOWTO (175),
701 EMPTY_HOWTO (176),
702 EMPTY_HOWTO (177),
703 EMPTY_HOWTO (178),
704 EMPTY_HOWTO (179),
705 EMPTY_HOWTO (180),
706 EMPTY_HOWTO (181),
707 EMPTY_HOWTO (182),
708 EMPTY_HOWTO (183),
709 EMPTY_HOWTO (184),
710 EMPTY_HOWTO (185),
711 EMPTY_HOWTO (186),
712 EMPTY_HOWTO (187),
713 EMPTY_HOWTO (188),
714 EMPTY_HOWTO (189),
715 EMPTY_HOWTO (190),
716 EMPTY_HOWTO (191),
717 EMPTY_HOWTO (192),
718 EMPTY_HOWTO (193),
719 EMPTY_HOWTO (194),
720 EMPTY_HOWTO (195),
721 EMPTY_HOWTO (196),
722 EMPTY_HOWTO (197),
723 EMPTY_HOWTO (198),
724 EMPTY_HOWTO (199),
725 EMPTY_HOWTO (200),
726 EMPTY_HOWTO (201),
727 EMPTY_HOWTO (202),
728 EMPTY_HOWTO (203),
729 EMPTY_HOWTO (204),
730 EMPTY_HOWTO (205),
731 EMPTY_HOWTO (206),
732 EMPTY_HOWTO (207),
733 EMPTY_HOWTO (208),
734 EMPTY_HOWTO (209),
735 EMPTY_HOWTO (210),
736 EMPTY_HOWTO (211),
737 EMPTY_HOWTO (212),
738 EMPTY_HOWTO (213),
739 EMPTY_HOWTO (214),
740 EMPTY_HOWTO (215),
741 EMPTY_HOWTO (216),
742 EMPTY_HOWTO (217),
743 EMPTY_HOWTO (218),
744 EMPTY_HOWTO (219),
745 EMPTY_HOWTO (220),
746 EMPTY_HOWTO (221),
747 EMPTY_HOWTO (222),
748 EMPTY_HOWTO (223),
749 EMPTY_HOWTO (224),
750 EMPTY_HOWTO (225),
751 EMPTY_HOWTO (226),
752 EMPTY_HOWTO (227),
753 EMPTY_HOWTO (228),
754 EMPTY_HOWTO (229),
755 EMPTY_HOWTO (230),
756 EMPTY_HOWTO (231),
757 EMPTY_HOWTO (232),
758 EMPTY_HOWTO (233),
759 EMPTY_HOWTO (234),
760 EMPTY_HOWTO (235),
761 EMPTY_HOWTO (236),
762 EMPTY_HOWTO (237),
763 EMPTY_HOWTO (238),
764 EMPTY_HOWTO (239),
765 EMPTY_HOWTO (240),
766 EMPTY_HOWTO (241),
767 EMPTY_HOWTO (242),
768 EMPTY_HOWTO (243),
769 EMPTY_HOWTO (244),
770 EMPTY_HOWTO (245),
771 EMPTY_HOWTO (246),
772 EMPTY_HOWTO (247),
773 EMPTY_HOWTO (248),
774 EMPTY_HOWTO (249),
775 EMPTY_HOWTO (250),
776 EMPTY_HOWTO (251),
777 EMPTY_HOWTO (252),
778 HOWTO (R_C6000_ALIGN, /* type */
779 0, /* rightshift */
780 0, /* size (0 = byte, 1 = short, 2 = long) */
781 0, /* bitsize */
782 FALSE, /* pc_relative */
783 0, /* bitpos */
784 complain_overflow_dont,/* complain_on_overflow */
785 bfd_elf_generic_reloc, /* special_function */
786 "R_C6000_ALIGN", /* name */
787 FALSE, /* partial_inplace */
788 0, /* src_mask */
789 0, /* dst_mask */
790 FALSE), /* pcrel_offset */
791 HOWTO (R_C6000_FPHEAD, /* type */
792 0, /* rightshift */
793 0, /* size (0 = byte, 1 = short, 2 = long) */
794 0, /* bitsize */
795 FALSE, /* pc_relative */
796 0, /* bitpos */
797 complain_overflow_dont,/* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_C6000_FPHEAD", /* name */
800 FALSE, /* partial_inplace */
801 0, /* src_mask */
802 0, /* dst_mask */
803 FALSE), /* pcrel_offset */
804 HOWTO (R_C6000_NOCMP, /* type */
805 0, /* rightshift */
806 0, /* size (0 = byte, 1 = short, 2 = long) */
807 0, /* bitsize */
808 FALSE, /* pc_relative */
809 0, /* bitpos */
810 complain_overflow_dont,/* complain_on_overflow */
811 bfd_elf_generic_reloc, /* special_function */
812 "R_C6000_NOCMP", /* name */
813 FALSE, /* partial_inplace */
814 0, /* src_mask */
815 0, /* dst_mask */
816 FALSE) /* pcrel_offset */
817};
818
819static reloc_howto_type elf32_tic6x_howto_table_rel[] =
820{
821 HOWTO (R_C6000_NONE, /* type */
822 0, /* rightshift */
6346d5ca 823 3, /* size (0 = byte, 1 = short, 2 = long) */
41820509
JM		 824 0, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_dont,/* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_C6000_NONE", /* name */
830 TRUE, /* partial_inplace */
40b36596
JM		 831 0, /* src_mask */
832 0, /* dst_mask */
833 FALSE), /* pcrel_offset */
834 HOWTO (R_C6000_ABS32, /* type */
835 0, /* rightshift */
836 2, /* size (0 = byte, 1 = short, 2 = long) */
837 32, /* bitsize */
838 FALSE, /* pc_relative */
839 0, /* bitpos */
840 complain_overflow_dont,/* complain_on_overflow */
841 bfd_elf_generic_reloc, /* special_function */
842 "R_C6000_ABS32", /* name */
41820509
JM		 843 TRUE, /* partial_inplace */
844 0xffffffff, /* src_mask */
40b36596
JM		 845 0xffffffff, /* dst_mask */
846 FALSE), /* pcrel_offset */
847 HOWTO (R_C6000_ABS16, /* type */
848 0, /* rightshift */
849 1, /* size (0 = byte, 1 = short, 2 = long) */
850 16, /* bitsize */
851 FALSE, /* pc_relative */
852 0, /* bitpos */
853 complain_overflow_bitfield,/* complain_on_overflow */
854 bfd_elf_generic_reloc, /* special_function */
855 "R_C6000_ABS16", /* name */
41820509
JM		 856 TRUE, /* partial_inplace */
857 0x0000ffff, /* src_mask */
40b36596
JM		 858 0x0000ffff, /* dst_mask */
859 FALSE), /* pcrel_offset */
860 HOWTO (R_C6000_ABS8, /* type */
861 0, /* rightshift */
862 0, /* size (0 = byte, 1 = short, 2 = long) */
863 8, /* bitsize */
864 FALSE, /* pc_relative */
865 0, /* bitpos */
866 complain_overflow_bitfield,/* complain_on_overflow */
867 bfd_elf_generic_reloc, /* special_function */
868 "R_C6000_ABS8", /* name */
41820509
JM		 869 TRUE, /* partial_inplace */
870 0x000000ff, /* src_mask */
40b36596
JM		 871 0x000000ff, /* dst_mask */
872 FALSE), /* pcrel_offset */
873 HOWTO (R_C6000_PCR_S21, /* type */
874 2, /* rightshift */
875 2, /* size (0 = byte, 1 = short, 2 = long) */
876 21, /* bitsize */
877 TRUE, /* pc_relative */
878 7, /* bitpos */
879 complain_overflow_signed,/* complain_on_overflow */
880 bfd_elf_generic_reloc, /* special_function */
881 "R_C6000_PCR_S21", /* name */
41820509
JM		 882 TRUE, /* partial_inplace */
883 0x0fffff80, /* src_mask */
40b36596
JM		 884 0x0fffff80, /* dst_mask */
885 TRUE), /* pcrel_offset */
886 HOWTO (R_C6000_PCR_S12, /* type */
887 2, /* rightshift */
888 2, /* size (0 = byte, 1 = short, 2 = long) */
889 12, /* bitsize */
890 TRUE, /* pc_relative */
891 16, /* bitpos */
892 complain_overflow_signed,/* complain_on_overflow */
893 bfd_elf_generic_reloc, /* special_function */
894 "R_C6000_PCR_S12", /* name */
41820509
JM		 895 TRUE, /* partial_inplace */
896 0x0fff0000, /* src_mask */
40b36596
JM		 897 0x0fff0000, /* dst_mask */
898 TRUE), /* pcrel_offset */
899 HOWTO (R_C6000_PCR_S10, /* type */
900 2, /* rightshift */
901 2, /* size (0 = byte, 1 = short, 2 = long) */
902 10, /* bitsize */
903 TRUE, /* pc_relative */
904 13, /* bitpos */
905 complain_overflow_signed,/* complain_on_overflow */
906 bfd_elf_generic_reloc, /* special_function */
907 "R_C6000_PCR_S10", /* name */
41820509
JM		 908 TRUE, /* partial_inplace */
909 0x007fe000, /* src_mask */
40b36596
JM		 910 0x007fe000, /* dst_mask */
911 TRUE), /* pcrel_offset */
912 HOWTO (R_C6000_PCR_S7, /* type */
913 2, /* rightshift */
914 2, /* size (0 = byte, 1 = short, 2 = long) */
915 7, /* bitsize */
916 TRUE, /* pc_relative */
917 16, /* bitpos */
918 complain_overflow_signed,/* complain_on_overflow */
919 bfd_elf_generic_reloc, /* special_function */
920 "R_C6000_PCR_S7", /* name */
41820509
JM		 921 TRUE, /* partial_inplace */
922 0x007f0000, /* src_mask */
40b36596
JM		 923 0x007f0000, /* dst_mask */
924 TRUE), /* pcrel_offset */
925 HOWTO (R_C6000_ABS_S16, /* type */
926 0, /* rightshift */
927 2, /* size (0 = byte, 1 = short, 2 = long) */
928 16, /* bitsize */
929 FALSE, /* pc_relative */
930 7, /* bitpos */
931 complain_overflow_signed,/* complain_on_overflow */
932 bfd_elf_generic_reloc, /* special_function */
933 "R_C6000_ABS_S16", /* name */
41820509
JM		 934 TRUE, /* partial_inplace */
935 0x007fff80, /* src_mask */
40b36596
JM		 936 0x007fff80, /* dst_mask */
937 FALSE), /* pcrel_offset */
938 HOWTO (R_C6000_ABS_L16, /* type */
939 0, /* rightshift */
940 2, /* size (0 = byte, 1 = short, 2 = long) */
941 16, /* bitsize */
942 FALSE, /* pc_relative */
943 7, /* bitpos */
944 complain_overflow_dont,/* complain_on_overflow */
945 bfd_elf_generic_reloc, /* special_function */
946 "R_C6000_ABS_L16", /* name */
41820509
JM		 947 TRUE, /* partial_inplace */
948 0x007fff80, /* src_mask */
40b36596
JM		 949 0x007fff80, /* dst_mask */
950 FALSE), /* pcrel_offset */
41820509 951 EMPTY_HOWTO (R_C6000_ABS_H16),
40b36596
JM		 952 HOWTO (R_C6000_SBR_U15_B, /* type */
953 0, /* rightshift */
954 2, /* size (0 = byte, 1 = short, 2 = long) */
955 15, /* bitsize */
956 FALSE, /* pc_relative */
957 8, /* bitpos */
958 complain_overflow_unsigned,/* complain_on_overflow */
959 bfd_elf_generic_reloc, /* special_function */
960 "R_C6000_SBR_U15_B", /* name */
41820509
JM		 961 TRUE, /* partial_inplace */
962 0x007fff00, /* src_mask */
40b36596
JM		 963 0x007fff00, /* dst_mask */
964 FALSE), /* pcrel_offset */
965 HOWTO (R_C6000_SBR_U15_H, /* type */
966 1, /* rightshift */
967 2, /* size (0 = byte, 1 = short, 2 = long) */
968 15, /* bitsize */
969 FALSE, /* pc_relative */
970 8, /* bitpos */
971 complain_overflow_unsigned,/* complain_on_overflow */
972 bfd_elf_generic_reloc, /* special_function */
973 "R_C6000_SBR_U15_H", /* name */
41820509
JM		 974 TRUE, /* partial_inplace */
975 0x007fff00, /* src_mask */
40b36596
JM		 976 0x007fff00, /* dst_mask */
977 FALSE), /* pcrel_offset */
978 HOWTO (R_C6000_SBR_U15_W, /* type */
979 2, /* rightshift */
980 2, /* size (0 = byte, 1 = short, 2 = long) */
981 15, /* bitsize */
982 FALSE, /* pc_relative */
983 8, /* bitpos */
984 complain_overflow_unsigned,/* complain_on_overflow */
985 bfd_elf_generic_reloc, /* special_function */
986 "R_C6000_SBR_U15_W", /* name */
41820509
JM		 987 TRUE, /* partial_inplace */
988 0x007fff00, /* src_mask */
40b36596
JM		 989 0x007fff00, /* dst_mask */
990 FALSE), /* pcrel_offset */
991 HOWTO (R_C6000_SBR_S16, /* type */
992 0, /* rightshift */
993 2, /* size (0 = byte, 1 = short, 2 = long) */
994 16, /* bitsize */
995 FALSE, /* pc_relative */
996 7, /* bitpos */
997 complain_overflow_signed,/* complain_on_overflow */
998 bfd_elf_generic_reloc, /* special_function */
999 "R_C6000_SBR_S16", /* name */
41820509
JM		 1000 TRUE, /* partial_inplace */
1001 0x007fff80, /* src_mask */
40b36596
JM		 1002 0x007fff80, /* dst_mask */
1003 FALSE), /* pcrel_offset */
1004 HOWTO (R_C6000_SBR_L16_B, /* type */
1005 0, /* rightshift */
1006 2, /* size (0 = byte, 1 = short, 2 = long) */
1007 16, /* bitsize */
1008 FALSE, /* pc_relative */
1009 7, /* bitpos */
1010 complain_overflow_dont,/* complain_on_overflow */
1011 bfd_elf_generic_reloc, /* special_function */
1012 "R_C6000_SBR_L16_B", /* name */
41820509
JM		 1013 TRUE, /* partial_inplace */
1014 0x007fff80, /* src_mask */
40b36596
JM		 1015 0x007fff80, /* dst_mask */
1016 FALSE), /* pcrel_offset */
1017 HOWTO (R_C6000_SBR_L16_H, /* type */
1018 1, /* rightshift */
1019 2, /* size (0 = byte, 1 = short, 2 = long) */
1020 16, /* bitsize */
1021 FALSE, /* pc_relative */
1022 7, /* bitpos */
1023 complain_overflow_dont,/* complain_on_overflow */
1024 bfd_elf_generic_reloc, /* special_function */
1025 "R_C6000_SBR_L16_H", /* name */
41820509
JM		 1026 TRUE, /* partial_inplace */
1027 0x007fff80, /* src_mask */
40b36596
JM		 1028 0x007fff80, /* dst_mask */
1029 FALSE), /* pcrel_offset */
1030 HOWTO (R_C6000_SBR_L16_W, /* type */
1031 2, /* rightshift */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1033 16, /* bitsize */
1034 FALSE, /* pc_relative */
1035 7, /* bitpos */
1036 complain_overflow_dont,/* complain_on_overflow */
1037 bfd_elf_generic_reloc, /* special_function */
1038 "R_C6000_SBR_L16_W", /* name */
41820509
JM		 1039 TRUE, /* partial_inplace */
1040 0x007fff80, /* src_mask */
40b36596
JM		 1041 0x007fff80, /* dst_mask */
1042 FALSE), /* pcrel_offset */
41820509
JM		 1043 EMPTY_HOWTO (R_C6000_SBR_H16_B),
1044 EMPTY_HOWTO (R_C6000_SBR_H16_H),
1045 EMPTY_HOWTO (R_C6000_SBR_H16_W),
40b36596
JM		 1046 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
1047 2, /* rightshift */
1048 2, /* size (0 = byte, 1 = short, 2 = long) */
1049 15, /* bitsize */
1050 FALSE, /* pc_relative */
1051 8, /* bitpos */
1052 complain_overflow_unsigned,/* complain_on_overflow */
1053 bfd_elf_generic_reloc, /* special_function */
1054 "R_C6000_SBR_GOT_U15_W",/* name */
41820509
JM		 1055 TRUE, /* partial_inplace */
1056 0x007fff00, /* src_mask */
40b36596
JM		 1057 0x007fff00, /* dst_mask */
1058 FALSE), /* pcrel_offset */
1059 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
1060 2, /* rightshift */
1061 2, /* size (0 = byte, 1 = short, 2 = long) */
1062 16, /* bitsize */
1063 FALSE, /* pc_relative */
1064 7, /* bitpos */
1065 complain_overflow_dont,/* complain_on_overflow */
1066 bfd_elf_generic_reloc, /* special_function */
1067 "R_C6000_SBR_GOT_L16_W",/* name */
41820509
JM		 1068 TRUE, /* partial_inplace */
1069 0x007fff80, /* src_mask */
40b36596
JM		 1070 0x007fff80, /* dst_mask */
1071 FALSE), /* pcrel_offset */
41820509 1072 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W),
40b36596
JM		 1073 HOWTO (R_C6000_DSBT_INDEX, /* type */
1074 0, /* rightshift */
1075 2, /* size (0 = byte, 1 = short, 2 = long) */
1076 15, /* bitsize */
1077 FALSE, /* pc_relative */
1078 8, /* bitpos */
1079 complain_overflow_unsigned,/* complain_on_overflow */
1080 bfd_elf_generic_reloc, /* special_function */
1081 "R_C6000_DSBT_INDEX", /* name */
41820509 1082 TRUE, /* partial_inplace */
40b36596
JM		 1083 0, /* src_mask */
1084 0x007fff00, /* dst_mask */
1085 FALSE), /* pcrel_offset */
1086 HOWTO (R_C6000_PREL31, /* type */
1087 1, /* rightshift */
1088 2, /* size (0 = byte, 1 = short, 2 = long) */
1089 31, /* bitsize */
44e87ece 1090 TRUE, /* pc_relative */
40b36596
JM		 1091 0, /* bitpos */
1092 complain_overflow_dont,/* complain_on_overflow */
1093 bfd_elf_generic_reloc, /* special_function */
1094 "R_C6000_PREL31", /* name */
41820509 1095 TRUE, /* partial_inplace */
40b36596
JM		 1096 0, /* src_mask */
1097 0x7fffffff, /* dst_mask */
44e87ece 1098 TRUE), /* pcrel_offset */
40b36596
JM		 1099 HOWTO (R_C6000_COPY, /* type */
1100 0, /* rightshift */
1101 2, /* size (0 = byte, 1 = short, 2 = long) */
1102 32, /* bitsize */
1103 FALSE, /* pc_relative */
1104 0, /* bitpos */
1105 complain_overflow_dont,/* complain_on_overflow */
1106 bfd_elf_generic_reloc, /* special_function */
1107 "R_C6000_COPY", /* name */
41820509 1108 TRUE, /* partial_inplace */
40b36596
JM		 1109 0, /* src_mask */
1110 0xffffffff, /* dst_mask */
1111 FALSE), /* pcrel_offset */
ac145307
BS		 1112 HOWTO (R_C6000_JUMP_SLOT, /* type */
1113 0, /* rightshift */
1114 2, /* size (0 = byte, 1 = short, 2 = long) */
1115 32, /* bitsize */
1116 FALSE, /* pc_relative */
1117 0, /* bitpos */
1118 complain_overflow_dont,/* complain_on_overflow */
1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_C6000_JUMP_SLOT", /* name */
1121 FALSE, /* partial_inplace */
1122 0, /* src_mask */
1123 0xffffffff, /* dst_mask */
1124 FALSE), /* pcrel_offset */
2fbb87f6
PB		 1125 HOWTO (R_C6000_EHTYPE, /* type */
1126 0, /* rightshift */
1127 2, /* size (0 = byte, 1 = short, 2 = long) */
1128 32, /* bitsize */
1129 FALSE, /* pc_relative */
1130 0, /* bitpos */
1131 complain_overflow_dont,/* complain_on_overflow */
1132 bfd_elf_generic_reloc, /* special_function */
1133 "R_C6000_EHTYPE", /* name */
1134 FALSE, /* partial_inplace */
1135 0, /* src_mask */
1136 0xffffffff, /* dst_mask */
1137 FALSE), /* pcrel_offset */
4a732032
BS		 1138 EMPTY_HOWTO (R_C6000_PCR_H16),
1139 EMPTY_HOWTO (R_C6000_PCR_L16),
40b36596
JM		 1140 EMPTY_HOWTO (31),
1141 EMPTY_HOWTO (32),
1142 EMPTY_HOWTO (33),
1143 EMPTY_HOWTO (34),
1144 EMPTY_HOWTO (35),
1145 EMPTY_HOWTO (36),
1146 EMPTY_HOWTO (37),
1147 EMPTY_HOWTO (38),
1148 EMPTY_HOWTO (39),
1149 EMPTY_HOWTO (40),
1150 EMPTY_HOWTO (41),
1151 EMPTY_HOWTO (42),
1152 EMPTY_HOWTO (43),
1153 EMPTY_HOWTO (44),
1154 EMPTY_HOWTO (45),
1155 EMPTY_HOWTO (46),
1156 EMPTY_HOWTO (47),
1157 EMPTY_HOWTO (48),
1158 EMPTY_HOWTO (49),
1159 EMPTY_HOWTO (50),
1160 EMPTY_HOWTO (51),
1161 EMPTY_HOWTO (52),
1162 EMPTY_HOWTO (53),
1163 EMPTY_HOWTO (54),
1164 EMPTY_HOWTO (55),
1165 EMPTY_HOWTO (56),
1166 EMPTY_HOWTO (57),
1167 EMPTY_HOWTO (58),
1168 EMPTY_HOWTO (59),
1169 EMPTY_HOWTO (60),
1170 EMPTY_HOWTO (61),
1171 EMPTY_HOWTO (62),
1172 EMPTY_HOWTO (63),
1173 EMPTY_HOWTO (64),
1174 EMPTY_HOWTO (65),
1175 EMPTY_HOWTO (66),
1176 EMPTY_HOWTO (67),
1177 EMPTY_HOWTO (68),
1178 EMPTY_HOWTO (69),
1179 EMPTY_HOWTO (70),
1180 EMPTY_HOWTO (71),
1181 EMPTY_HOWTO (72),
1182 EMPTY_HOWTO (73),
1183 EMPTY_HOWTO (74),
1184 EMPTY_HOWTO (75),
1185 EMPTY_HOWTO (76),
1186 EMPTY_HOWTO (77),
1187 EMPTY_HOWTO (78),
1188 EMPTY_HOWTO (79),
1189 EMPTY_HOWTO (80),
1190 EMPTY_HOWTO (81),
1191 EMPTY_HOWTO (82),
1192 EMPTY_HOWTO (83),
1193 EMPTY_HOWTO (84),
1194 EMPTY_HOWTO (85),
1195 EMPTY_HOWTO (86),
1196 EMPTY_HOWTO (87),
1197 EMPTY_HOWTO (88),
1198 EMPTY_HOWTO (89),
1199 EMPTY_HOWTO (90),
1200 EMPTY_HOWTO (91),
1201 EMPTY_HOWTO (92),
1202 EMPTY_HOWTO (93),
1203 EMPTY_HOWTO (94),
1204 EMPTY_HOWTO (95),
1205 EMPTY_HOWTO (96),
1206 EMPTY_HOWTO (97),
1207 EMPTY_HOWTO (98),
1208 EMPTY_HOWTO (99),
1209 EMPTY_HOWTO (100),
1210 EMPTY_HOWTO (101),
1211 EMPTY_HOWTO (102),
1212 EMPTY_HOWTO (103),
1213 EMPTY_HOWTO (104),
1214 EMPTY_HOWTO (105),
1215 EMPTY_HOWTO (106),
1216 EMPTY_HOWTO (107),
1217 EMPTY_HOWTO (108),
1218 EMPTY_HOWTO (109),
1219 EMPTY_HOWTO (110),
1220 EMPTY_HOWTO (111),
1221 EMPTY_HOWTO (112),
1222 EMPTY_HOWTO (113),
1223 EMPTY_HOWTO (114),
1224 EMPTY_HOWTO (115),
1225 EMPTY_HOWTO (116),
1226 EMPTY_HOWTO (117),
1227 EMPTY_HOWTO (118),
1228 EMPTY_HOWTO (119),
1229 EMPTY_HOWTO (120),
1230 EMPTY_HOWTO (121),
1231 EMPTY_HOWTO (122),
1232 EMPTY_HOWTO (123),
1233 EMPTY_HOWTO (124),
1234 EMPTY_HOWTO (125),
1235 EMPTY_HOWTO (126),
1236 EMPTY_HOWTO (127),
1237 EMPTY_HOWTO (128),
1238 EMPTY_HOWTO (129),
1239 EMPTY_HOWTO (130),
1240 EMPTY_HOWTO (131),
1241 EMPTY_HOWTO (132),
1242 EMPTY_HOWTO (133),
1243 EMPTY_HOWTO (134),
1244 EMPTY_HOWTO (135),
1245 EMPTY_HOWTO (136),
1246 EMPTY_HOWTO (137),
1247 EMPTY_HOWTO (138),
1248 EMPTY_HOWTO (139),
1249 EMPTY_HOWTO (140),
1250 EMPTY_HOWTO (141),
1251 EMPTY_HOWTO (142),
1252 EMPTY_HOWTO (143),
1253 EMPTY_HOWTO (144),
1254 EMPTY_HOWTO (145),
1255 EMPTY_HOWTO (146),
1256 EMPTY_HOWTO (147),
1257 EMPTY_HOWTO (148),
1258 EMPTY_HOWTO (149),
1259 EMPTY_HOWTO (150),
1260 EMPTY_HOWTO (151),
1261 EMPTY_HOWTO (152),
1262 EMPTY_HOWTO (153),
1263 EMPTY_HOWTO (154),
1264 EMPTY_HOWTO (155),
1265 EMPTY_HOWTO (156),
1266 EMPTY_HOWTO (157),
1267 EMPTY_HOWTO (158),
1268 EMPTY_HOWTO (159),
1269 EMPTY_HOWTO (160),
1270 EMPTY_HOWTO (161),
1271 EMPTY_HOWTO (162),
1272 EMPTY_HOWTO (163),
1273 EMPTY_HOWTO (164),
1274 EMPTY_HOWTO (165),
1275 EMPTY_HOWTO (166),
1276 EMPTY_HOWTO (167),
1277 EMPTY_HOWTO (168),
1278 EMPTY_HOWTO (169),
1279 EMPTY_HOWTO (170),
1280 EMPTY_HOWTO (171),
1281 EMPTY_HOWTO (172),
1282 EMPTY_HOWTO (173),
1283 EMPTY_HOWTO (174),
1284 EMPTY_HOWTO (175),
1285 EMPTY_HOWTO (176),
1286 EMPTY_HOWTO (177),
1287 EMPTY_HOWTO (178),
1288 EMPTY_HOWTO (179),
1289 EMPTY_HOWTO (180),
1290 EMPTY_HOWTO (181),
1291 EMPTY_HOWTO (182),
1292 EMPTY_HOWTO (183),
1293 EMPTY_HOWTO (184),
1294 EMPTY_HOWTO (185),
1295 EMPTY_HOWTO (186),
1296 EMPTY_HOWTO (187),
1297 EMPTY_HOWTO (188),
1298 EMPTY_HOWTO (189),
1299 EMPTY_HOWTO (190),
1300 EMPTY_HOWTO (191),
1301 EMPTY_HOWTO (192),
1302 EMPTY_HOWTO (193),
1303 EMPTY_HOWTO (194),
1304 EMPTY_HOWTO (195),
1305 EMPTY_HOWTO (196),
1306 EMPTY_HOWTO (197),
1307 EMPTY_HOWTO (198),
1308 EMPTY_HOWTO (199),
1309 EMPTY_HOWTO (200),
1310 EMPTY_HOWTO (201),
1311 EMPTY_HOWTO (202),
1312 EMPTY_HOWTO (203),
1313 EMPTY_HOWTO (204),
1314 EMPTY_HOWTO (205),
1315 EMPTY_HOWTO (206),
1316 EMPTY_HOWTO (207),
1317 EMPTY_HOWTO (208),
1318 EMPTY_HOWTO (209),
1319 EMPTY_HOWTO (210),
1320 EMPTY_HOWTO (211),
1321 EMPTY_HOWTO (212),
1322 EMPTY_HOWTO (213),
1323 EMPTY_HOWTO (214),
1324 EMPTY_HOWTO (215),
1325 EMPTY_HOWTO (216),
1326 EMPTY_HOWTO (217),
1327 EMPTY_HOWTO (218),
1328 EMPTY_HOWTO (219),
1329 EMPTY_HOWTO (220),
1330 EMPTY_HOWTO (221),
1331 EMPTY_HOWTO (222),
1332 EMPTY_HOWTO (223),
1333 EMPTY_HOWTO (224),
1334 EMPTY_HOWTO (225),
1335 EMPTY_HOWTO (226),
1336 EMPTY_HOWTO (227),
1337 EMPTY_HOWTO (228),
1338 EMPTY_HOWTO (229),
1339 EMPTY_HOWTO (230),
1340 EMPTY_HOWTO (231),
1341 EMPTY_HOWTO (232),
1342 EMPTY_HOWTO (233),
1343 EMPTY_HOWTO (234),
1344 EMPTY_HOWTO (235),
1345 EMPTY_HOWTO (236),
1346 EMPTY_HOWTO (237),
1347 EMPTY_HOWTO (238),
1348 EMPTY_HOWTO (239),
1349 EMPTY_HOWTO (240),
1350 EMPTY_HOWTO (241),
1351 EMPTY_HOWTO (242),
1352 EMPTY_HOWTO (243),
1353 EMPTY_HOWTO (244),
1354 EMPTY_HOWTO (245),
1355 EMPTY_HOWTO (246),
1356 EMPTY_HOWTO (247),
1357 EMPTY_HOWTO (248),
1358 EMPTY_HOWTO (249),
1359 EMPTY_HOWTO (250),
1360 EMPTY_HOWTO (251),
1361 EMPTY_HOWTO (252),
1362 HOWTO (R_C6000_ALIGN, /* type */
1363 0, /* rightshift */
1364 0, /* size (0 = byte, 1 = short, 2 = long) */
1365 0, /* bitsize */
1366 FALSE, /* pc_relative */
1367 0, /* bitpos */
1368 complain_overflow_dont,/* complain_on_overflow */
1369 bfd_elf_generic_reloc, /* special_function */
1370 "R_C6000_ALIGN", /* name */
41820509 1371 TRUE, /* partial_inplace */
40b36596
JM		 1372 0, /* src_mask */
1373 0, /* dst_mask */
1374 FALSE), /* pcrel_offset */
1375 HOWTO (R_C6000_FPHEAD, /* type */
1376 0, /* rightshift */
1377 0, /* size (0 = byte, 1 = short, 2 = long) */
1378 0, /* bitsize */
1379 FALSE, /* pc_relative */
1380 0, /* bitpos */
1381 complain_overflow_dont,/* complain_on_overflow */
1382 bfd_elf_generic_reloc, /* special_function */
1383 "R_C6000_FPHEAD", /* name */
41820509 1384 TRUE, /* partial_inplace */
40b36596
JM		 1385 0, /* src_mask */
1386 0, /* dst_mask */
1387 FALSE), /* pcrel_offset */
1388 HOWTO (R_C6000_NOCMP, /* type */
1389 0, /* rightshift */
1390 0, /* size (0 = byte, 1 = short, 2 = long) */
1391 0, /* bitsize */
1392 FALSE, /* pc_relative */
1393 0, /* bitpos */
1394 complain_overflow_dont,/* complain_on_overflow */
1395 bfd_elf_generic_reloc, /* special_function */
1396 "R_C6000_NOCMP", /* name */
41820509 1397 TRUE, /* partial_inplace */
40b36596
JM		 1398 0, /* src_mask */
1399 0, /* dst_mask */
1400 FALSE) /* pcrel_offset */
1401};
1402
1403/* Map BFD relocations to ELF relocations. */
1404
1405typedef struct
1406{
1407 bfd_reloc_code_real_type bfd_reloc_val;
1408 enum elf_tic6x_reloc_type elf_reloc_val;
1409} tic6x_reloc_map;
1410
1411static const tic6x_reloc_map elf32_tic6x_reloc_map[] =
1412 {
1413 { BFD_RELOC_NONE, R_C6000_NONE },
1414 { BFD_RELOC_32, R_C6000_ABS32 },
1415 { BFD_RELOC_16, R_C6000_ABS16 },
1416 { BFD_RELOC_8, R_C6000_ABS8 },
1417 { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 },
1418 { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 },
1419 { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 },
1420 { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 },
1421 { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 },
1422 { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 },
1423 { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 },
1424 { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B },
1425 { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H },
1426 { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W },
1427 { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 },
1428 { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B },
1429 { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H },
1430 { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W },
1431 { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B },
1432 { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H },
1433 { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W },
1434 { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W },
1435 { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W },
1436 { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W },
1437 { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX },
1438 { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 },
1439 { BFD_RELOC_C6000_COPY, R_C6000_COPY },
ac145307
BS		 1440 { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT },
1441 { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE },
1442 { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 },
1443 { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 },
40b36596
JM		 1444 { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN },
1445 { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD },
1446 { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP }
1447 };
1448
1449static reloc_howto_type *
41820509 1450elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
40b36596
JM		 1451{
1452 unsigned int i;
1453
1454 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++)
1455 if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code)
41820509
JM		 1456 {
1457 enum elf_tic6x_reloc_type elf_reloc_val;
1458 reloc_howto_type *howto;
1459
1460 elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val;
1461 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1462 howto = &elf32_tic6x_howto_table[elf_reloc_val];
1463 else
1464 howto = &elf32_tic6x_howto_table_rel[elf_reloc_val];
1465
1466 /* Some relocations are RELA-only; do not return them for
1467 REL. */
1468 if (howto->name == NULL)
1469 howto = NULL;
1470
1471 return howto;
1472 }
40b36596
JM		 1473
1474 return NULL;
1475}
1476
1477static reloc_howto_type *
41820509 1478elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name)
40b36596 1479{
41820509
JM		 1480 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1481 {
1482 unsigned int i;
1483
1484 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++)
1485 if (elf32_tic6x_howto_table[i].name != NULL
1486 && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0)
1487 return &elf32_tic6x_howto_table[i];
1488 }
1489 else
1490 {
1491 unsigned int i;
40b36596 1492
41820509
JM		 1493 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++)
1494 if (elf32_tic6x_howto_table_rel[i].name != NULL
1495 && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0)
1496 return &elf32_tic6x_howto_table_rel[i];
1497 }
40b36596
JM		 1498
1499 return NULL;
1500}
1501
1502static void
1503elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1504 Elf_Internal_Rela *elf_reloc)
1505{
1506 unsigned int r_type;
1507
1508 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1509 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table))
1510 bfd_reloc->howto = NULL;
1511 else
1512 bfd_reloc->howto = &elf32_tic6x_howto_table[r_type];
1513}
1514
41820509
JM		 1515static void
1516elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1517 Elf_Internal_Rela *elf_reloc)
1518{
1519 unsigned int r_type;
1520
1521 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1522 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel))
1523 bfd_reloc->howto = NULL;
1524 else
1525 bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type];
1526}
1527
1528void
1529elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p)
1530{
1531 elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p;
1532}
1533
ac145307
BS		 1534/* Create an entry in a C6X ELF linker hash table. */
1535
1536static struct bfd_hash_entry *
1537elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry,
1538 struct bfd_hash_table *table,
1539 const char *string)
1540{
1541 /* Allocate the structure if it has not already been allocated by a
1542 subclass. */
1543 if (entry == NULL)
1544 {
1545 entry = bfd_hash_allocate (table,
1546 sizeof (struct elf32_tic6x_link_hash_entry));
1547 if (entry == NULL)
1548 return entry;
1549 }
1550
1551 /* Call the allocation method of the superclass. */
1552 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1553 if (entry != NULL)
1554 {
1555 struct elf32_tic6x_link_hash_entry *eh;
1556
1557 eh = (struct elf32_tic6x_link_hash_entry *) entry;
1558 eh->dyn_relocs = NULL;
1559 }
1560
1561 return entry;
1562}
1563
1564/* Create a C6X ELF linker hash table. */
1565
1566static struct bfd_link_hash_table *
1567elf32_tic6x_link_hash_table_create (bfd *abfd)
1568{
1569 struct elf32_tic6x_link_hash_table *ret;
1570 bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table);
1571
7bf52ea2 1572 ret = bfd_zmalloc (amt);
ac145307
BS		 1573 if (ret == NULL)
1574 return NULL;
1575
1576 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1577 elf32_tic6x_link_hash_newfunc,
1578 sizeof (struct elf32_tic6x_link_hash_entry),
1579 TIC6X_ELF_DATA))
1580 {
1581 free (ret);
1582 return NULL;
1583 }
1584
ac145307
BS		 1585 ret->obfd = abfd;
1586 ret->elf.is_relocatable_executable = 1;
1587
1588 return &ret->elf.root;
1589}
1590
c6a8f6e0
BS		 1591static bfd_boolean
1592elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info)
1593{
0e1862bb 1594 if (bfd_link_pic (info))
c6a8f6e0
BS		 1595 {
1596 obj_attribute *out_attr;
1597 out_attr = elf_known_obj_attributes_proc (abfd);
1598 if (out_attr[Tag_ABI_PIC].i == 0)
1599 {
1600 _bfd_error_handler (_("warning: generating a shared library "
1601 "containing non-PIC code"));
1602 }
1603 if (out_attr[Tag_ABI_PID].i == 0)
1604 {
1605 _bfd_error_handler (_("warning: generating a shared library "
1606 "containing non-PID code"));
1607 }
1608 }
1609 /* Invoke the regular ELF backend linker to do all the work. */
1610 if (!bfd_elf_final_link (abfd, info))
1611 return FALSE;
1612
1613 return TRUE;
1614}
1615
ac145307
BS		 1616/* Called to pass PARAMS to the backend. We store them in the hash table
1617 associated with INFO. */
1618
1619void
1620elf32_tic6x_setup (struct bfd_link_info *info,
1621 struct elf32_tic6x_params *params)
1622{
1623 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info);
1624 htab->params = *params;
1625}
1626
1627/* Determine if we're dealing with a DSBT object. */
1628
1629static bfd_boolean
1630elf32_tic6x_using_dsbt (bfd *abfd)
1631{
1632 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC,
1633 Tag_ABI_DSBT);
1634}
1635
1636/* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
1637 sections in DYNOBJ, and set up shortcuts to them in our hash
1638 table. */
1639
1640static bfd_boolean
1641elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
1642{
1643 struct elf32_tic6x_link_hash_table *htab;
1644 flagword flags;
1645
1646 htab = elf32_tic6x_hash_table (info);
1647 if (htab == NULL)
1648 return FALSE;
1649
1650 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1651 return FALSE;
1652
1653 /* Create .dsbt */
1654 flags = (SEC_ALLOC | SEC_LOAD
1655 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1656 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt",
1657 flags);
1658 if (htab->dsbt == NULL
1659 || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2)
1660 || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5))
1661 return FALSE;
1662
3d4d4302 1663 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
0e1862bb 1664 if (!bfd_link_pic (info))
3d4d4302 1665 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
ac145307
BS		 1666
1667 if (!htab->sdynbss
0e1862bb 1668 || (!bfd_link_pic (info) && !htab->srelbss))
ac145307
BS		 1669 abort ();
1670
1671 return TRUE;
1672}
1673
41820509
JM		 1674static bfd_boolean
1675elf32_tic6x_mkobject (bfd *abfd)
1676{
1677 bfd_boolean ret;
1678
1679 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
1680 TIC6X_ELF_DATA);
1681 if (ret)
1682 elf32_tic6x_set_use_rela_p (abfd, TRUE);
1683 return ret;
1684}
1685
ac145307
BS		 1686/* Install relocation RELA into section SRELA, incrementing its
1687 reloc_count. */
1688
1689static void
1690elf32_tic6x_install_rela (bfd *output_bfd, asection *srela,
1691 Elf_Internal_Rela *rela)
1692{
1693 bfd_byte *loc;
1694 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela);
1695 loc = srela->contents + off;
1696 BFD_ASSERT (off < srela->size);
1697 bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
1698}
1699
1700/* Create a dynamic reloc against the GOT at offset OFFSET. The contents
1701 of the GOT at this offset have been initialized with the relocation. */
1702
1703static void
1704elf32_tic6x_make_got_dynreloc (bfd *output_bfd,
1705 struct elf32_tic6x_link_hash_table *htab,
1706 asection *sym_sec, bfd_vma offset)
1707{
1708 asection *sgot = htab->elf.sgot;
1709 Elf_Internal_Rela outrel;
1710 int dynindx;
1711
1712 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset;
1713 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
1714 if (sym_sec && sym_sec->output_section
1715 && ! bfd_is_abs_section (sym_sec->output_section)
1716 && ! bfd_is_und_section (sym_sec->output_section))
1717 {
1718 dynindx = elf_section_data (sym_sec->output_section)->dynindx;
1719 outrel.r_addend -= sym_sec->output_section->vma;
1720 }
1721 else
1722 {
1723 dynindx = 0;
1724 }
1725 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32);
1726 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel);
1727}
1728
1729/* Finish up dynamic symbol handling. We set the contents of various
1730 dynamic sections here. */
1731
1732static bfd_boolean
1733elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd,
1734 struct bfd_link_info *info,
1735 struct elf_link_hash_entry *h,
1736 Elf_Internal_Sym * sym)
1737{
ac145307
BS		 1738 struct elf32_tic6x_link_hash_table *htab;
1739
1740 htab = elf32_tic6x_hash_table (info);
ac145307
BS		 1741
1742 if (h->plt.offset != (bfd_vma) -1)
1743 {
1744 bfd_vma plt_index;
1745 bfd_vma got_section_offset, got_dp_offset, rela_offset;
1746 Elf_Internal_Rela rela;
1747 bfd_byte *loc;
1748 asection *plt, *gotplt, *relplt;
1749 const struct elf_backend_data *bed;
1750
1751 bed = get_elf_backend_data (output_bfd);
1752
1753 BFD_ASSERT (htab->elf.splt != NULL);
1754 plt = htab->elf.splt;
1755 gotplt = htab->elf.sgotplt;
1756 relplt = htab->elf.srelplt;
1757
1758 /* This symbol has an entry in the procedure linkage table. Set
1759 it up. */
1760
1761 if ((h->dynindx == -1
0e1862bb 1762 && !((h->forced_local || bfd_link_executable (info))
ac145307
BS		 1763 && h->def_regular
1764 && h->type == STT_GNU_IFUNC))
1765 || plt == NULL
1766 || gotplt == NULL
1767 || relplt == NULL)
1768 abort ();
1769
1770 /* Get the index in the procedure linkage table which
1771 corresponds to this symbol. This is the index of this symbol
1772 in all the symbols for which we are making plt entries. The
1773 first entry in the procedure linkage table is reserved.
1774
1775 Get the offset into the .got table of the entry that
1776 corresponds to this function. Each .got entry is 4 bytes.
1777 The first three are reserved.
68ffbac6 1778
ac145307
BS		 1779 For static executables, we don't reserve anything. */
1780
1781 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1782 got_section_offset = plt_index + bed->got_header_size / 4;
1783 got_dp_offset = got_section_offset + htab->params.dsbt_size;
1784 rela_offset = plt_index * sizeof (Elf32_External_Rela);
1785
1786 got_section_offset *= 4;
1787
1788 /* Fill in the entry in the procedure linkage table. */
1789
1790 /* ldw .d2t2 *+B14($GOT(f)), b2 */
1791 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e,
1792 plt->contents + h->plt.offset);
1793 /* mvk .s2 low(rela_offset), b0 */
1794 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a,
1795 plt->contents + h->plt.offset + 4);
1796 /* mvkh .s2 high(rela_offset), b0 */
1797 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a,
1798 plt->contents + h->plt.offset + 8);
1799 /* nop 2 */
1800 bfd_put_32 (output_bfd, 0x00002000,
1801 plt->contents + h->plt.offset + 12);
1802 /* b .s2 b2 */
1803 bfd_put_32 (output_bfd, 0x00080362,
1804 plt->contents + h->plt.offset + 16);
1805 /* nop 5 */
1806 bfd_put_32 (output_bfd, 0x00008000,
1807 plt->contents + h->plt.offset + 20);
1808
1809 /* Fill in the entry in the global offset table. */
1810 bfd_put_32 (output_bfd,
1811 (plt->output_section->vma + plt->output_offset),
1812 gotplt->contents + got_section_offset);
1813
1814 /* Fill in the entry in the .rel.plt section. */
1815 rela.r_offset = (gotplt->output_section->vma
1816 + gotplt->output_offset
1817 + got_section_offset);
1818 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT);
1819 rela.r_addend = 0;
1820 loc = relplt->contents + rela_offset;
1821 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1822
1823 if (!h->def_regular)
1824 {
1825 /* Mark the symbol as undefined, rather than as defined in
1826 the .plt section. */
1827 sym->st_shndx = SHN_UNDEF;
1828 sym->st_value = 0;
1829 }
1830 }
1831
1832 if (h->got.offset != (bfd_vma) -1)
1833 {
1834 asection *sgot;
1835 asection *srela;
1836
1837 /* This symbol has an entry in the global offset table.
1838 Set it up. */
1839
ce558b89
AM		 1840 sgot = htab->elf.sgot;
1841 srela = htab->elf.srelgot;
ac145307
BS		 1842 BFD_ASSERT (sgot != NULL && srela != NULL);
1843
1844 /* If this is a -Bsymbolic link, and the symbol is defined
1845 locally, we just want to emit a RELATIVE reloc. Likewise if
1846 the symbol was forced to be local because of a version file.
1847 The entry in the global offset table will already have been
1848 initialized in the relocate_section function. */
0e1862bb 1849 if (bfd_link_pic (info)
a496fbc8 1850 && (SYMBOLIC_BIND (info, h)
ac145307
BS		 1851 || h->dynindx == -1 || h->forced_local) && h->def_regular)
1852 {
1853 asection *s = h->root.u.def.section;
1854 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s,
1855 h->got.offset & ~(bfd_vma) 1);
1856 }
1857 else
1858 {
1859 Elf_Internal_Rela outrel;
1860 bfd_put_32 (output_bfd, (bfd_vma) 0,
1861 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
1862 outrel.r_offset = (sgot->output_section->vma
1863 + sgot->output_offset
1864 + (h->got.offset & ~(bfd_vma) 1));
1865 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32);
1866 outrel.r_addend = 0;
1867
1868 elf32_tic6x_install_rela (output_bfd, srela, &outrel);
1869 }
1870 }
1871
1872 if (h->needs_copy)
1873 {
1874 Elf_Internal_Rela rel;
1875
1876 /* This symbol needs a copy reloc. Set it up. */
1877
1878 if (h->dynindx == -1
1879 || (h->root.type != bfd_link_hash_defined
1880 && h->root.type != bfd_link_hash_defweak)
1881 || htab->srelbss == NULL)
1882 abort ();
1883
1884 rel.r_offset = (h->root.u.def.value
1885 + h->root.u.def.section->output_section->vma
1886 + h->root.u.def.section->output_offset);
1887 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY);
1888 rel.r_addend = 0;
1889
1890 elf32_tic6x_install_rela (output_bfd, htab->srelbss, &rel);
1891 }
1892
1893 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 1894 if (h == elf_hash_table (info)->hdynamic
ac145307
BS		 1895 || h == elf_hash_table (info)->hgot)
1896 sym->st_shndx = SHN_ABS;
1897
1898 return TRUE;
1899}
1900
9cf0e282
PB		 1901/* Unwinding tables are not referenced directly. This pass marks them as
1902 required if the corresponding code section is marked. */
1903
1904static bfd_boolean
1905elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info,
1906 elf_gc_mark_hook_fn gc_mark_hook)
1907{
1908 bfd *sub;
1909 Elf_Internal_Shdr **elf_shdrp;
1910 bfd_boolean again;
1911
7f6ab9f8
AM		 1912 _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook);
1913
9cf0e282
PB		 1914 /* Marking EH data may cause additional code sections to be marked,
1915 requiring multiple passes. */
1916 again = TRUE;
1917 while (again)
1918 {
1919 again = FALSE;
c72f2fb2 1920 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
9cf0e282
PB		 1921 {
1922 asection *o;
1923
1924 if (! is_tic6x_elf (sub))
1925 continue;
1926
1927 elf_shdrp = elf_elfsections (sub);
1928 for (o = sub->sections; o != NULL; o = o->next)
1929 {
1930 Elf_Internal_Shdr *hdr;
1931
1932 hdr = &elf_section_data (o)->this_hdr;
1933 if (hdr->sh_type == SHT_C6000_UNWIND
1934 && hdr->sh_link
1935 && hdr->sh_link < elf_numsections (sub)
1936 && !o->gc_mark
1937 && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark)
1938 {
1939 again = TRUE;
1940 if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
1941 return FALSE;
1942 }
1943 }
1944 }
1945 }
1946
1947 return TRUE;
1948}
1949
1bce6bd8
PB		 1950/* Return TRUE if this is an unwinding table index. */
1951
1952static bfd_boolean
1953is_tic6x_elf_unwind_section_name (const char *name)
1954{
1955 return (CONST_STRNEQ (name, ELF_STRING_C6000_unwind)
1956 || CONST_STRNEQ (name, ELF_STRING_C6000_unwind_once));
1957}
1958
1959
1960/* Set the type and flags for an unwinding index table. We do this by
1961 the section name, which is a hack, but ought to work. */
1962
1963static bfd_boolean
1964elf32_tic6x_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1965 Elf_Internal_Shdr *hdr, asection *sec)
1966{
1967 const char * name;
1968
1969 name = bfd_get_section_name (abfd, sec);
1970
1971 if (is_tic6x_elf_unwind_section_name (name))
1972 {
1973 hdr->sh_type = SHT_C6000_UNWIND;
1974 hdr->sh_flags |= SHF_LINK_ORDER;
1975 }
1976
1977 return TRUE;
1978}
1979
ac145307
BS		 1980/* Update the got entry reference counts for the section being removed. */
1981
1982static bfd_boolean
1983elf32_tic6x_gc_sweep_hook (bfd *abfd,
1984 struct bfd_link_info *info,
1985 asection *sec,
1986 const Elf_Internal_Rela *relocs)
1987{
1988 struct elf32_tic6x_link_hash_table *htab;
1989 Elf_Internal_Shdr *symtab_hdr;
1990 struct elf_link_hash_entry **sym_hashes;
1991 bfd_signed_vma *local_got_refcounts;
1992 const Elf_Internal_Rela *rel, *relend;
1993
0e1862bb 1994 if (bfd_link_relocatable (info))
ac145307
BS		 1995 return TRUE;
1996
1997 htab = elf32_tic6x_hash_table (info);
1998 if (htab == NULL)
1999 return FALSE;
2000
2001 elf_section_data (sec)->local_dynrel = NULL;
2002
2003 symtab_hdr = &elf_symtab_hdr (abfd);
2004 sym_hashes = elf_sym_hashes (abfd);
2005 local_got_refcounts = elf_local_got_refcounts (abfd);
2006
2007 relend = relocs + sec->reloc_count;
2008 for (rel = relocs; rel < relend; rel++)
2009 {
2010 unsigned long r_symndx;
2011 unsigned int r_type;
2012 struct elf_link_hash_entry *h = NULL;
2013
2014 r_symndx = ELF32_R_SYM (rel->r_info);
2015 if (r_symndx >= symtab_hdr->sh_info)
2016 {
2017 struct elf32_tic6x_link_hash_entry *eh;
2018 struct elf_dyn_relocs **pp;
2019 struct elf_dyn_relocs *p;
2020
2021 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2022 while (h->root.type == bfd_link_hash_indirect
2023 || h->root.type == bfd_link_hash_warning)
2024 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2025 eh = (struct elf32_tic6x_link_hash_entry *) h;
2026
2027 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2028 if (p->sec == sec)
2029 {
2030 /* Everything must go for SEC. */
2031 *pp = p->next;
2032 break;
2033 }
2034 }
2035
2036 r_type = ELF32_R_TYPE (rel->r_info);
2037
2038 switch (r_type)
2039 {
2040 case R_C6000_SBR_GOT_U15_W:
2041 case R_C6000_SBR_GOT_L16_W:
2042 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2043 case R_C6000_EHTYPE:
ac145307
BS		 2044 if (h != NULL)
2045 {
2046 if (h->got.refcount > 0)
2047 h->got.refcount -= 1;
2048 }
2049 else if (local_got_refcounts != NULL)
2050 {
2051 if (local_got_refcounts[r_symndx] > 0)
2052 local_got_refcounts[r_symndx] -= 1;
2053 }
2054 break;
2055
2056 default:
2057 break;
2058 }
2059 }
2060
2061 return TRUE;
2062}
2063
2064/* Adjust a symbol defined by a dynamic object and referenced by a
2065 regular object. The current definition is in some section of the
2066 dynamic object, but we're not including those sections. We have to
2067 change the definition to something the rest of the link can
2068 understand. */
2069
2070static bfd_boolean
2071elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info,
2072 struct elf_link_hash_entry *h)
2073{
2074 struct elf32_tic6x_link_hash_table *htab;
2075 bfd *dynobj;
2076 asection *s;
2077
2078 dynobj = elf_hash_table (info)->dynobj;
2079
2080 /* Make sure we know what is going on here. */
2081 BFD_ASSERT (dynobj != NULL
2082 && (h->needs_plt
2083 || h->u.weakdef != NULL
2084 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
2085
2086 /* If this is a function, put it in the procedure linkage table. We
2087 will fill in the contents of the procedure linkage table later,
2088 when we know the address of the .got section. */
2089 if (h->type == STT_FUNC
2090 || h->needs_plt)
2091 {
2092 if (h->plt.refcount <= 0
2093 || SYMBOL_CALLS_LOCAL (info, h)
2094 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2095 && h->root.type == bfd_link_hash_undefweak))
2096 {
2097 /* This case can occur if we saw a PLT32 reloc in an input
2098 file, but the symbol was never referred to by a dynamic
2099 object, or if all references were garbage collected. In
2100 such a case, we don't actually need to build a procedure
2101 linkage table, and we can just do a PC32 reloc instead. */
2102 h->plt.offset = (bfd_vma) -1;
2103 h->needs_plt = 0;
2104 }
2105
2106 return TRUE;
2107 }
2108
2109 /* If this is a weak symbol, and there is a real definition, the
2110 processor independent code will have arranged for us to see the
2111 real definition first, and we can just use the same value. */
2112 if (h->u.weakdef != NULL)
2113 {
2114 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2115 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2116 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2117 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2118 h->non_got_ref = h->u.weakdef->non_got_ref;
2119 return TRUE;
2120 }
2121
2122 /* This is a reference to a symbol defined by a dynamic object which
2123 is not a function. */
2124
2125 /* If we are creating a shared library, we must presume that the
2126 only references to the symbol are via the global offset table.
2127 For such cases we need not do anything here; the relocations will
2128 be handled correctly by relocate_section. */
0e1862bb 2129 if (bfd_link_pic (info))
ac145307
BS		 2130 return TRUE;
2131
2132 /* If there are no references to this symbol that do not use the
2133 GOT, we don't need to generate a copy reloc. */
2134 if (!h->non_got_ref)
2135 return TRUE;
2136
2137 /* If -z nocopyreloc was given, we won't generate them either. */
2138 if (info->nocopyreloc)
2139 {
2140 h->non_got_ref = 0;
2141 return TRUE;
2142 }
2143
2144 htab = elf32_tic6x_hash_table (info);
2145 if (htab == NULL)
2146 return FALSE;
2147
ac145307
BS		 2148 /* We must allocate the symbol in our .dynbss section, which will
2149 become part of the .bss section of the executable. There will be
2150 an entry for this symbol in the .dynsym section. The dynamic
2151 object will contain position independent code, so all references
2152 from the dynamic object to this symbol will go through the global
2153 offset table. The dynamic linker will use the .dynsym entry to
2154 determine the address it must put in the global offset table, so
2155 both the dynamic object and the regular object will refer to the
2156 same memory location for the variable. */
2157
2158 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2159 copy the initial value out of the dynamic object and into the
2160 runtime process image. */
1d7e9d18 2161 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
ac145307
BS		 2162 {
2163 htab->srelbss->size += sizeof (Elf32_External_Rela);
2164 h->needs_copy = 1;
2165 }
2166
2167 s = htab->sdynbss;
2168
6cabe1ea 2169 return _bfd_elf_adjust_dynamic_copy (info, h, s);
ac145307
BS		 2170}
2171
41820509
JM		 2172static bfd_boolean
2173elf32_tic6x_new_section_hook (bfd *abfd, asection *sec)
2174{
2175 bfd_boolean ret;
2176
fbd9ad90
PB		 2177 /* Allocate target specific section data. */
2178 if (!sec->used_by_bfd)
2179 {
2180 _tic6x_elf_section_data *sdata;
2181 bfd_size_type amt = sizeof (*sdata);
2182
2183 sdata = (_tic6x_elf_section_data *) bfd_zalloc (abfd, amt);
2184 if (sdata == NULL)
2185 return FALSE;
2186 sec->used_by_bfd = sdata;
2187 }
2188
41820509
JM		 2189 ret = _bfd_elf_new_section_hook (abfd, sec);
2190 sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p;
2191
2192 return ret;
2193}
2194
2195/* Return true if relocation REL against section SEC is a REL rather
2196 than RELA relocation. RELOCS is the first relocation in the
2197 section and ABFD is the bfd that contains SEC. */
2198
2199static bfd_boolean
2200elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec,
2201 const Elf_Internal_Rela *relocs,
2202 const Elf_Internal_Rela *rel)
2203{
2204 Elf_Internal_Shdr *rel_hdr;
2205 const struct elf_backend_data *bed;
2206
2207 /* To determine which flavor of relocation this is, we depend on the
d4730f92
BS		 2208 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
2209 rel_hdr = elf_section_data (sec)->rel.hdr;
2210 if (rel_hdr == NULL)
2211 return FALSE;
41820509 2212 bed = get_elf_backend_data (abfd);
d4730f92
BS		 2213 return ((size_t) (rel - relocs)
2214 < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel);
41820509
JM		 2215}
2216
ac145307
BS		 2217/* We need dynamic symbols for every section, since segments can
2218 relocate independently. */
2219static bfd_boolean
2220elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2221 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2222 asection *p)
2223{
2224 switch (elf_section_data (p)->this_hdr.sh_type)
2225 {
2226 case SHT_PROGBITS:
2227 case SHT_NOBITS:
2228 /* If sh_type is yet undecided, assume it could be
2229 SHT_PROGBITS/SHT_NOBITS. */
2230 case SHT_NULL:
2231 return FALSE;
2232
2233 /* There shouldn't be section relative relocations
2234 against any other section. */
2235 default:
2236 return TRUE;
2237 }
2238}
2239
40b36596
JM		 2240static bfd_boolean
2241elf32_tic6x_relocate_section (bfd *output_bfd,
2242 struct bfd_link_info *info,
2243 bfd *input_bfd,
2244 asection *input_section,
2245 bfd_byte *contents,
2246 Elf_Internal_Rela *relocs,
2247 Elf_Internal_Sym *local_syms,
2248 asection **local_sections)
2249{
ac145307 2250 struct elf32_tic6x_link_hash_table *htab;
40b36596
JM		 2251 Elf_Internal_Shdr *symtab_hdr;
2252 struct elf_link_hash_entry **sym_hashes;
ac145307 2253 bfd_vma *local_got_offsets;
40b36596
JM		 2254 Elf_Internal_Rela *rel;
2255 Elf_Internal_Rela *relend;
2256 bfd_boolean ok = TRUE;
2257
ac145307 2258 htab = elf32_tic6x_hash_table (info);
40b36596
JM		 2259 symtab_hdr = & elf_symtab_hdr (input_bfd);
2260 sym_hashes = elf_sym_hashes (input_bfd);
ac145307 2261 local_got_offsets = elf_local_got_offsets (input_bfd);
40b36596
JM		 2262
2263 relend = relocs + input_section->reloc_count;
2264
2265 for (rel = relocs; rel < relend; rel ++)
2266 {
2267 int r_type;
2268 unsigned long r_symndx;
2269 arelent bfd_reloc;
2270 reloc_howto_type *howto;
2271 Elf_Internal_Sym *sym;
2272 asection *sec;
2273 struct elf_link_hash_entry *h;
4a732032 2274 bfd_vma off, off2, relocation;
40b36596
JM		 2275 bfd_boolean unresolved_reloc;
2276 bfd_reloc_status_type r;
2277 struct bfd_link_hash_entry *sbh;
41820509 2278 bfd_boolean is_rel;
40b36596
JM		 2279
2280 r_type = ELF32_R_TYPE (rel->r_info);
2281 r_symndx = ELF32_R_SYM (rel->r_info);
2282
41820509
JM		 2283 is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section,
2284 relocs, rel);
2285
2286 if (is_rel)
2287 elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel);
2288 else
2289 elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel);
40b36596
JM		 2290 howto = bfd_reloc.howto;
2291 if (howto == NULL)
2292 {
2293 bfd_set_error (bfd_error_bad_value);
2294 return FALSE;
2295 }
2296
2297 h = NULL;
2298 sym = NULL;
2299 sec = NULL;
2300 unresolved_reloc = FALSE;
2301
2302 if (r_symndx < symtab_hdr->sh_info)
2303 {
2304 sym = local_syms + r_symndx;
2305 sec = local_sections[r_symndx];
2306 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2307 }
2308 else
2309 {
62d887d4 2310 bfd_boolean warned, ignored;
40b36596
JM		 2311
2312 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2313 r_symndx, symtab_hdr, sym_hashes,
2314 h, sec, relocation,
62d887d4 2315 unresolved_reloc, warned, ignored);
40b36596
JM		 2316 }
2317
dbaa2011 2318 if (sec != NULL && discarded_section (sec))
e4067dbb 2319 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2320 rel, 1, relend, howto, 0, contents);
40b36596 2321
0e1862bb 2322 if (bfd_link_relocatable (info))
41820509
JM		 2323 {
2324 if (is_rel
2325 && sym != NULL
2326 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2327 {
2328 rel->r_addend = 0;
2329 relocation = sec->output_offset + sym->st_value;
2330 r = _bfd_relocate_contents (howto, input_bfd, relocation,
2331 contents + rel->r_offset);
2332 goto done_reloc;
2333 }
2334 continue;
2335 }
40b36596
JM		 2336
2337 switch (r_type)
2338 {
2339 case R_C6000_NONE:
2340 case R_C6000_ALIGN:
2341 case R_C6000_FPHEAD:
2342 case R_C6000_NOCMP:
2343 /* No action needed. */
2344 continue;
2345
2346 case R_C6000_PCR_S21:
ac145307
BS		 2347 /* A branch to an undefined weak symbol is turned into a
2348 "b .s2 B3" instruction if the existing insn is of the
2349 form "b .s2 symbol". */
2350 if (h ? h->root.type == bfd_link_hash_undefweak
2351 && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1)
2352 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2353 {
2354 unsigned long oldval;
2355 oldval = bfd_get_32 (input_bfd, contents + rel->r_offset);
2356
2357 if ((oldval & 0x7e) == 0x12)
2358 {
2359 oldval &= 0xF0000001;
2360 bfd_put_32 (input_bfd, oldval | 0x000c0362,
2361 contents + rel->r_offset);
2362 r = bfd_reloc_ok;
2363 goto done_reloc;
2364 }
2365 }
1a0670f3 2366 /* Fall through. */
ac145307 2367
40b36596
JM		 2368 case R_C6000_PCR_S12:
2369 case R_C6000_PCR_S10:
2370 case R_C6000_PCR_S7:
ac145307
BS		 2371 if (h != NULL
2372 && h->plt.offset != (bfd_vma) -1
2373 && htab->elf.splt != NULL)
2374 {
2375 relocation = (htab->elf.splt->output_section->vma
2376 + htab->elf.splt->output_offset
2377 + h->plt.offset);
2378 }
2379
40b36596
JM		 2380 /* Generic PC-relative handling produces a value relative to
2381 the exact location of the relocation. Adjust it to be
2382 relative to the start of the fetch packet instead. */
2383 relocation += (input_section->output_section->vma
2384 + input_section->output_offset
2385 + rel->r_offset) & 0x1f;
ac145307
BS		 2386 unresolved_reloc = FALSE;
2387 break;
2388
4a732032
BS		 2389 case R_C6000_PCR_H16:
2390 case R_C6000_PCR_L16:
2391 off = (input_section->output_section->vma
2392 + input_section->output_offset
2393 + rel->r_offset);
2394 /* These must be calculated as R = S - FP(FP(PC) - A).
2395 PC, here, is the value we just computed in OFF. RELOCATION
2396 has the address of S + A. */
2397 relocation -= rel->r_addend;
2398 off2 = ((off & ~(bfd_vma)0x1f) - rel->r_addend) & (bfd_vma)~0x1f;
2399 off2 = relocation - off2;
2400 relocation = off + off2;
2401 break;
2402
ac145307
BS		 2403 case R_C6000_DSBT_INDEX:
2404 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index;
0e1862bb 2405 if (!bfd_link_pic (info) || relocation != 0)
ac145307
BS		 2406 break;
2407
2408 /* fall through */
40b36596
JM		 2409 case R_C6000_ABS32:
2410 case R_C6000_ABS16:
2411 case R_C6000_ABS8:
2412 case R_C6000_ABS_S16:
2413 case R_C6000_ABS_L16:
2414 case R_C6000_ABS_H16:
ac145307
BS		 2415 /* When generating a shared object or relocatable executable, these
2416 relocations are copied into the output file to be resolved at
2417 run time. */
0e1862bb 2418 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
ac145307
BS		 2419 && (input_section->flags & SEC_ALLOC)
2420 && (h == NULL
2421 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2422 || h->root.type != bfd_link_hash_undefweak))
2423 {
2424 Elf_Internal_Rela outrel;
2425 bfd_boolean skip, relocate;
2426 asection *sreloc;
2427
2428 unresolved_reloc = FALSE;
2429
2430 sreloc = elf_section_data (input_section)->sreloc;
2431 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
2432
2433 skip = FALSE;
2434 relocate = FALSE;
2435
2436 outrel.r_offset =
2437 _bfd_elf_section_offset (output_bfd, info, input_section,
2438 rel->r_offset);
2439 if (outrel.r_offset == (bfd_vma) -1)
2440 skip = TRUE;
2441 else if (outrel.r_offset == (bfd_vma) -2)
2442 skip = TRUE, relocate = TRUE;
2443 outrel.r_offset += (input_section->output_section->vma
2444 + input_section->output_offset);
2445
2446 if (skip)
2447 memset (&outrel, 0, sizeof outrel);
2448 else if (h != NULL
2449 && h->dynindx != -1
0e1862bb 2450 && (!bfd_link_pic (info)
a496fbc8 2451 || !SYMBOLIC_BIND (info, h)
ac145307
BS		 2452 || !h->def_regular))
2453 {
2454 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2455 outrel.r_addend = rel->r_addend;
2456 }
2457 else
2458 {
2459 long indx;
2460
2461 outrel.r_addend = relocation + rel->r_addend;
2462
2463 if (bfd_is_abs_section (sec))
2464 indx = 0;
2465 else if (sec == NULL || sec->owner == NULL)
2466 {
2467 bfd_set_error (bfd_error_bad_value);
2468 return FALSE;
2469 }
2470 else
2471 {
2472 asection *osec;
2473
2474 osec = sec->output_section;
2475 indx = elf_section_data (osec)->dynindx;
2476 outrel.r_addend -= osec->vma;
2477 BFD_ASSERT (indx != 0);
2478 }
2479
2480 outrel.r_info = ELF32_R_INFO (indx, r_type);
2481 }
2482
2483 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel);
2484
2485 /* If this reloc is against an external symbol, we do not want to
2486 fiddle with the addend. Otherwise, we need to include the symbol
2487 value so that it becomes an addend for the dynamic reloc. */
2488 if (! relocate)
2489 continue;
2490 }
2491
40b36596
JM		 2492 /* Generic logic OK. */
2493 break;
2494
2495 case R_C6000_SBR_U15_B:
2496 case R_C6000_SBR_U15_H:
2497 case R_C6000_SBR_U15_W:
2498 case R_C6000_SBR_S16:
2499 case R_C6000_SBR_L16_B:
2500 case R_C6000_SBR_L16_H:
2501 case R_C6000_SBR_L16_W:
2502 case R_C6000_SBR_H16_B:
2503 case R_C6000_SBR_H16_H:
2504 case R_C6000_SBR_H16_W:
2505 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
2506 FALSE, FALSE, TRUE);
2507 if (sbh != NULL
2508 && (sbh->type == bfd_link_hash_defined
2509 || sbh->type == bfd_link_hash_defweak))
ac145307
BS		 2510 {
2511 if (h ? (h->root.type == bfd_link_hash_undefweak
2512 && (htab->elf.splt == NULL
2513 || h->plt.offset == (bfd_vma) -1))
2514 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2515 relocation = 0;
2516 else
2517 relocation -= (sbh->u.def.value
2518 + sbh->u.def.section->output_section->vma
2519 + sbh->u.def.section->output_offset);
2520 }
40b36596
JM		 2521 else
2522 {
4eca0228
AM		 2523 _bfd_error_handler (_("%B: SB-relative relocation but "
2524 "__c6xabi_DSBT_BASE not defined"),
2525 input_bfd);
40b36596
JM		 2526 ok = FALSE;
2527 continue;
2528 }
2529 break;
2530
2531 case R_C6000_SBR_GOT_U15_W:
2532 case R_C6000_SBR_GOT_L16_W:
2533 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2534 case R_C6000_EHTYPE:
ac145307
BS		 2535 /* Relocation is to the entry for this symbol in the global
2536 offset table. */
2537 if (htab->elf.sgot == NULL)
2538 abort ();
2539
2540 if (h != NULL)
2541 {
2542 bfd_boolean dyn;
2543
2544 off = h->got.offset;
2545 dyn = htab->elf.dynamic_sections_created;
0e1862bb
L		 2546 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2547 bfd_link_pic (info),
2548 h)
2549 || (bfd_link_pic (info)
ac145307
BS		 2550 && SYMBOL_REFERENCES_LOCAL (info, h))
2551 || (ELF_ST_VISIBILITY (h->other)
2552 && h->root.type == bfd_link_hash_undefweak))
2553 {
2554 /* This is actually a static link, or it is a
2555 -Bsymbolic link and the symbol is defined
2556 locally, or the symbol was forced to be local
2557 because of a version file. We must initialize
2558 this entry in the global offset table. Since the
2559 offset must always be a multiple of 4, we use the
2560 least significant bit to record whether we have
2561 initialized it already.
2562
2563 When doing a dynamic link, we create a .rel.got
2564 relocation entry to initialize the value. This
2565 is done in the finish_dynamic_symbol routine. */
2566 if ((off & 1) != 0)
2567 off &= ~1;
2568 else
2569 {
2570 bfd_put_32 (output_bfd, relocation,
2571 htab->elf.sgot->contents + off);
2572 h->got.offset |= 1;
2573
0e1862bb
L		 2574 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2575 bfd_link_pic (info),
ac145307
BS		 2576 h)
2577 && !(ELF_ST_VISIBILITY (h->other)
2578 && h->root.type == bfd_link_hash_undefweak))
2579 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec,
2580 off);
2581 }
2582 }
2583 else
2584 unresolved_reloc = FALSE;
2585 }
2586 else
2587 {
2588 if (local_got_offsets == NULL)
2589 abort ();
2590
2591 off = local_got_offsets[r_symndx];
2592
2593 /* The offset must always be a multiple of 4. We use
2594 the least significant bit to record whether we have
2595 already generated the necessary reloc. */
2596 if ((off & 1) != 0)
2597 off &= ~1;
2598 else
2599 {
2600 bfd_put_32 (output_bfd, relocation,
2601 htab->elf.sgot->contents + off);
2602
0e1862bb 2603 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
ac145307
BS		 2604 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off);
2605
2606 local_got_offsets[r_symndx] |= 1;
2607 }
2608 }
2609
2610 if (off >= (bfd_vma) -2)
2611 abort ();
2612
2613 if (htab->dsbt)
2614 relocation = (htab->elf.sgot->output_section->vma
2615 + htab->elf.sgot->output_offset + off
2616 - htab->dsbt->output_section->vma
2617 - htab->dsbt->output_offset);
2618 else
2619 relocation = (htab->elf.sgot->output_section->vma
2620 + htab->elf.sgot->output_offset + off
2621 - htab->elf.sgotplt->output_section->vma
2622 - htab->elf.sgotplt->output_offset);
2623
2624 if (rel->r_addend != 0)
2625 {
2626 /* We can't do anything for a relocation which is against
2627 a symbol *plus offset*. GOT holds relocations for
2628 symbols. Make this an error; the compiler isn't
2629 allowed to pass us these kinds of things. */
2630 if (h == NULL)
4eca0228 2631 _bfd_error_handler
695344c0 2632 /* xgettext:c-format */
ac145307
BS		 2633 (_("%B, section %A: relocation %s with non-zero addend %d"
2634 " against local symbol"),
2635 input_bfd,
2636 input_section,
2637 elf32_tic6x_howto_table[r_type].name,
2638 rel->r_addend);
2639 else
4eca0228 2640 _bfd_error_handler
695344c0 2641 /* xgettext:c-format */
ac145307
BS		 2642 (_("%B, section %A: relocation %s with non-zero addend %d"
2643 " against symbol `%s'"),
2644 input_bfd,
2645 input_section,
2646 elf32_tic6x_howto_table[r_type].name,
2647 rel->r_addend,
2648 h->root.root.string[0] != '\0' ? h->root.root.string
2649 : _("[whose name is lost]"));
2650
2651 bfd_set_error (bfd_error_bad_value);
2652 return FALSE;
2653 }
2654 break;
2655
40b36596 2656 case R_C6000_PREL31:
44e87ece
PB		 2657 if (h != NULL
2658 && h->plt.offset != (bfd_vma) -1
2659 && htab->elf.splt != NULL)
2660 {
2661 relocation = (htab->elf.splt->output_section->vma
2662 + htab->elf.splt->output_offset
2663 + h->plt.offset);
2664 }
2665 break;
40b36596
JM		 2666
2667 case R_C6000_COPY:
2668 /* Invalid in relocatable object. */
2669 default:
2670 /* Unknown relocation. */
695344c0 2671 /* xgettext:c-format */
4eca0228
AM		 2672 _bfd_error_handler (_("%B: invalid relocation type %d"),
2673 input_bfd, r_type);
40b36596
JM		 2674 ok = FALSE;
2675 continue;
2676 }
2677
2678 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2679 contents, rel->r_offset,
2680 relocation, rel->r_addend);
2681
41820509 2682 done_reloc:
40b36596
JM		 2683 if (r == bfd_reloc_ok
2684 && howto->complain_on_overflow == complain_overflow_bitfield)
2685 {
2686 /* Generic overflow handling accepts cases the ABI says
2687 should be rejected for R_C6000_ABS16 and
2688 R_C6000_ABS8. */
2689 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
2690 bfd_vma sbit = 1 << (howto->bitsize - 1);
2691 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
2692 bfd_vma value_sbits = value & sbits;
2693
2694 if (value_sbits != 0
2695 && value_sbits != sbit
2696 && value_sbits != sbits)
2697 r = bfd_reloc_overflow;
2698 }
2699
2700 if (r != bfd_reloc_ok)
2701 {
2702 const char *name;
2703 const char *error_message;
2704
2705 if (h != NULL)
2706 name = h->root.root.string;
2707 else
2708 {
2709 name = bfd_elf_string_from_elf_section (input_bfd,
2710 symtab_hdr->sh_link,
2711 sym->st_name);
2712 if (name == NULL)
2713 return FALSE;
2714 if (*name == '\0')
2715 name = bfd_section_name (input_bfd, sec);
2716 }
2717
2718 switch (r)
2719 {
2720 case bfd_reloc_overflow:
2721 /* If the overflowing reloc was to an undefined symbol,
2722 we have already printed one error message and there
2723 is no point complaining again. */
1a72702b
AM		 2724 if (!h || h->root.type != bfd_link_hash_undefined)
2725 (*info->callbacks->reloc_overflow)
2726 (info, (h ? &h->root : NULL), name, howto->name,
2727 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
40b36596
JM		 2728 break;
2729
2730 case bfd_reloc_undefined:
1a72702b
AM		 2731 (*info->callbacks->undefined_symbol) (info, name, input_bfd,
2732 input_section,
2733 rel->r_offset, TRUE);
40b36596
JM		 2734 break;
2735
2736 case bfd_reloc_outofrange:
2737 error_message = _("out of range");
2738 goto common_error;
2739
2740 case bfd_reloc_notsupported:
2741 error_message = _("unsupported relocation");
2742 goto common_error;
2743
2744 case bfd_reloc_dangerous:
2745 error_message = _("dangerous relocation");
2746 goto common_error;
2747
2748 default:
2749 error_message = _("unknown error");
2750 /* Fall through. */
2751
2752 common_error:
2753 BFD_ASSERT (error_message != NULL);
1a72702b
AM		 2754 (*info->callbacks->reloc_dangerous)
2755 (info, error_message, input_bfd, input_section, rel->r_offset);
40b36596
JM		 2756 break;
2757 }
2758 }
2759 }
2760
2761 return ok;
2762}
2763
ac145307
BS		 2764\f
2765/* Look through the relocs for a section during the first phase, and
2766 calculate needed space in the global offset table, procedure linkage
2767 table, and dynamic reloc sections. */
2768
2769static bfd_boolean
2770elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info,
2771 asection *sec, const Elf_Internal_Rela *relocs)
2772{
2773 struct elf32_tic6x_link_hash_table *htab;
2774 Elf_Internal_Shdr *symtab_hdr;
2775 struct elf_link_hash_entry **sym_hashes;
2776 const Elf_Internal_Rela *rel;
2777 const Elf_Internal_Rela *rel_end;
2778 asection *sreloc;
2779
0e1862bb 2780 if (bfd_link_relocatable (info))
ac145307
BS		 2781 return TRUE;
2782
2783 htab = elf32_tic6x_hash_table (info);
2784 symtab_hdr = &elf_symtab_hdr (abfd);
2785 sym_hashes = elf_sym_hashes (abfd);
2786
2787 /* Create dynamic sections for relocatable executables so that we can
2788 copy relocations. */
0e1862bb 2789 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
ac145307
BS		 2790 && ! htab->elf.dynamic_sections_created)
2791 {
2792 if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
2793 return FALSE;
2794 }
2795
2796 sreloc = NULL;
2797
2798 rel_end = relocs + sec->reloc_count;
2799 for (rel = relocs; rel < rel_end; rel++)
2800 {
2801 unsigned int r_type;
2802 unsigned long r_symndx;
2803 struct elf_link_hash_entry *h;
2804 Elf_Internal_Sym *isym;
2805
2806 r_symndx = ELF32_R_SYM (rel->r_info);
2807 r_type = ELF32_R_TYPE (rel->r_info);
2808
2809 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
2810 {
695344c0 2811 /* xgettext:c-format */
4eca0228
AM		 2812 _bfd_error_handler (_("%B: bad symbol index: %d"),
2813 abfd, r_symndx);
ac145307
BS		 2814 return FALSE;
2815 }
2816
2817 if (r_symndx < symtab_hdr->sh_info)
2818 {
2819 /* A local symbol. */
2820 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2821 abfd, r_symndx);
2822 if (isym == NULL)
2823 return FALSE;
2824 h = NULL;
2825 }
2826 else
2827 {
2828 isym = NULL;
2829 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2830 while (h->root.type == bfd_link_hash_indirect
2831 || h->root.type == bfd_link_hash_warning)
2832 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 2833
2834 /* PR15323, ref flags aren't set for references in the same
2835 object. */
2836 h->root.non_ir_ref = 1;
ac145307
BS		 2837 }
2838
2839 switch (r_type)
2840 {
2841 case R_C6000_PCR_S21:
44e87ece 2842 case R_C6000_PREL31:
ac145307
BS		 2843 /* This symbol requires a procedure linkage table entry. We
2844 actually build the entry in adjust_dynamic_symbol,
2845 because this might be a case of linking PIC code which is
2846 never referenced by a dynamic object, in which case we
2847 don't need to generate a procedure linkage table entry
2848 after all. */
2849
2850 /* If this is a local symbol, we resolve it directly without
2851 creating a procedure linkage table entry. */
2852 if (h == NULL)
2853 continue;
2854
2855 h->needs_plt = 1;
2856 h->plt.refcount += 1;
2857 break;
2858
2859 case R_C6000_SBR_GOT_U15_W:
2860 case R_C6000_SBR_GOT_L16_W:
2861 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2862 case R_C6000_EHTYPE:
ac145307
BS		 2863 /* This symbol requires a global offset table entry. */
2864 if (h != NULL)
2865 {
2866 h->got.refcount += 1;
2867 }
2868 else
2869 {
2870 bfd_signed_vma *local_got_refcounts;
2871
2872 /* This is a global offset table entry for a local symbol. */
2873 local_got_refcounts = elf_local_got_refcounts (abfd);
2874 if (local_got_refcounts == NULL)
2875 {
2876 bfd_size_type size;
2877
2878 size = symtab_hdr->sh_info;
2879 size *= (sizeof (bfd_signed_vma)
2880 + sizeof (bfd_vma) + sizeof(char));
2881 local_got_refcounts = bfd_zalloc (abfd, size);
2882 if (local_got_refcounts == NULL)
2883 return FALSE;
2884 elf_local_got_refcounts (abfd) = local_got_refcounts;
2885 }
2886 local_got_refcounts[r_symndx] += 1;
2887 }
2888
2889 if (htab->elf.sgot == NULL)
2890 {
2891 if (htab->elf.dynobj == NULL)
2892 htab->elf.dynobj = abfd;
2893 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
2894 return FALSE;
2895 }
2896 break;
2897
2898 case R_C6000_DSBT_INDEX:
2899 /* We'd like to check for nonzero dsbt_index here, but it's
2900 set up only after check_relocs is called. Instead, we
2901 store the number of R_C6000_DSBT_INDEX relocs in the
2902 pc_count field, and potentially discard the extra space
2903 in elf32_tic6x_allocate_dynrelocs. */
0e1862bb 2904 if (!bfd_link_pic (info))
ac145307
BS		 2905 break;
2906
2907 /* fall through */
2908 case R_C6000_ABS32:
2909 case R_C6000_ABS16:
2910 case R_C6000_ABS8:
2911 case R_C6000_ABS_S16:
2912 case R_C6000_ABS_L16:
2913 case R_C6000_ABS_H16:
2914 /* If we are creating a shared library, and this is a reloc
2915 against a global symbol, or a non PC relative reloc
2916 against a local symbol, then we need to copy the reloc
2917 into the shared library. However, if we are linking with
2918 -Bsymbolic, we do not need to copy a reloc against a
2919 global symbol which is defined in an object we are
2920 including in the link (i.e., DEF_REGULAR is set). At
2921 this point we have not seen all the input files, so it is
2922 possible that DEF_REGULAR is not set now but will be set
2923 later (it is never cleared). In case of a weak definition,
2924 DEF_REGULAR may be cleared later by a strong definition in
2925 a shared library. We account for that possibility below by
2926 storing information in the relocs_copied field of the hash
2927 table entry. A similar situation occurs when creating
2928 shared libraries and symbol visibility changes render the
2929 symbol local.
2930
2931 If on the other hand, we are creating an executable, we
2932 may need to keep relocations for symbols satisfied by a
2933 dynamic library if we manage to avoid copy relocs for the
2934 symbol. */
0e1862bb 2935 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
ac145307
BS		 2936 && (sec->flags & SEC_ALLOC) != 0)
2937 {
2938 struct elf_dyn_relocs *p;
2939 struct elf_dyn_relocs **head;
2940
2941 /* We must copy these reloc types into the output file.
2942 Create a reloc section in dynobj and make room for
2943 this reloc. */
2944 if (sreloc == NULL)
2945 {
2946 if (htab->elf.dynobj == NULL)
2947 htab->elf.dynobj = abfd;
2948
2949 sreloc = _bfd_elf_make_dynamic_reloc_section
2950 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE);
2951
2952 if (sreloc == NULL)
2953 return FALSE;
2954 }
2955
2956 /* If this is a global symbol, we count the number of
2957 relocations we need for this symbol. */
2958 if (h != NULL)
2959 {
2960 head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs;
2961 }
2962 else
2963 {
2964 /* Track dynamic relocs needed for local syms too.
2965 We really need local syms available to do this
2966 easily. Oh well. */
2967 void **vpp;
2968 asection *s;
2969
2970 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2971 if (s == NULL)
2972 s = sec;
2973
2974 vpp = &elf_section_data (s)->local_dynrel;
2975 head = (struct elf_dyn_relocs **)vpp;
2976 }
2977
2978 p = *head;
2979 if (p == NULL || p->sec != sec)
2980 {
2981 bfd_size_type amt = sizeof *p;
2982 p = bfd_alloc (htab->elf.dynobj, amt);
2983 if (p == NULL)
2984 return FALSE;
2985 p->next = *head;
2986 *head = p;
2987 p->sec = sec;
2988 p->count = 0;
2123f9ad 2989 p->pc_count = 0;
ac145307
BS		 2990 }
2991
2992 p->count += 1;
2993 if (r_type == R_C6000_DSBT_INDEX)
2994 p->pc_count += 1;
2995 }
2996 break;
2997
2998 case R_C6000_SBR_U15_B:
2999 case R_C6000_SBR_U15_H:
3000 case R_C6000_SBR_U15_W:
3001 case R_C6000_SBR_S16:
3002 case R_C6000_SBR_L16_B:
3003 case R_C6000_SBR_L16_H:
3004 case R_C6000_SBR_L16_W:
3005 case R_C6000_SBR_H16_B:
3006 case R_C6000_SBR_H16_H:
3007 case R_C6000_SBR_H16_W:
0e1862bb 3008 if (h != NULL && bfd_link_executable (info))
ac145307
BS		 3009 {
3010 /* For B14-relative addresses, we might need a copy
3011 reloc. */
3012 h->non_got_ref = 1;
3013 }
3014 break;
3015
3016 default:
3017 break;
3018 }
3019 }
3020
3021 return TRUE;
3022}
3023
3024static bfd_boolean
3025elf32_tic6x_add_symbol_hook (bfd *abfd,
3026 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3027 Elf_Internal_Sym *sym,
3028 const char **namep ATTRIBUTE_UNUSED,
3029 flagword *flagsp ATTRIBUTE_UNUSED,
3030 asection **secp,
3031 bfd_vma *valp)
3032{
3033 switch (sym->st_shndx)
3034 {
3035 case SHN_TIC6X_SCOMMON:
3036 *secp = bfd_make_section_old_way (abfd, ".scommon");
3037 (*secp)->flags |= SEC_IS_COMMON;
3038 *valp = sym->st_size;
a253d456 3039 (void) bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value));
ac145307
BS		 3040 break;
3041 }
3042
3043 return TRUE;
3044}
3045
3046static void
3047elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
3048{
3049 elf_symbol_type *elfsym;
3050
3051 elfsym = (elf_symbol_type *) asym;
3052 switch (elfsym->internal_elf_sym.st_shndx)
3053 {
3054 case SHN_TIC6X_SCOMMON:
3055 if (tic6x_elf_scom_section.name == NULL)
3056 {
3057 /* Initialize the small common section. */
3058 tic6x_elf_scom_section.name = ".scommon";
3059 tic6x_elf_scom_section.flags = SEC_IS_COMMON;
3060 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section;
3061 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol;
3062 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr;
3063 tic6x_elf_scom_symbol.name = ".scommon";
3064 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM;
3065 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section;
3066 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol;
3067 }
3068 asym->section = &tic6x_elf_scom_section;
3069 asym->value = elfsym->internal_elf_sym.st_size;
3070 break;
3071 }
3072}
3073
3074static int
3075elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3076 const char *name ATTRIBUTE_UNUSED,
3077 Elf_Internal_Sym *sym,
3078 asection *input_sec,
3079 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3080{
3081 /* If we see a common symbol, which implies a relocatable link, then
3082 if a symbol was small common in an input file, mark it as small
3083 common in the output file. */
3084 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
3085 sym->st_shndx = SHN_TIC6X_SCOMMON;
3086
3087 return 1;
3088}
3089
3090static bfd_boolean
3091elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
3092 asection *sec,
3093 int *retval)
3094{
3095 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3096 {
3097 *retval = SHN_TIC6X_SCOMMON;
3098 return TRUE;
3099 }
3100
3101 return FALSE;
3102}
3103
3104/* Allocate space in .plt, .got and associated reloc sections for
3105 dynamic relocs. */
3106
3107static bfd_boolean
3108elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3109{
3110 struct bfd_link_info *info;
3111 struct elf32_tic6x_link_hash_table *htab;
3112 struct elf32_tic6x_link_hash_entry *eh;
3113 struct elf_dyn_relocs *p;
3114
3115 if (h->root.type == bfd_link_hash_indirect)
3116 return TRUE;
3117
ac145307 3118 eh = (struct elf32_tic6x_link_hash_entry *) h;
ac145307
BS		 3119 info = (struct bfd_link_info *) inf;
3120 htab = elf32_tic6x_hash_table (info);
3121
3122 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0)
3123 {
3124 /* Make sure this symbol is output as a dynamic symbol.
3125 Undefined weak syms won't yet be marked as dynamic. */
3126 if (h->dynindx == -1 && !h->forced_local)
3127 {
3128 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3129 return FALSE;
3130 }
3131
0e1862bb 3132 if (bfd_link_pic (info)
ac145307
BS		 3133 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
3134 {
3135 asection *s = htab->elf.splt;
3136
3137 /* If this is the first .plt entry, make room for the special
3138 first entry. */
3139 if (s->size == 0)
3140 s->size += PLT_ENTRY_SIZE;
3141
3142 h->plt.offset = s->size;
3143
3144 /* If this symbol is not defined in a regular file, and we are
3145 not generating a shared library, then set the symbol to this
3146 location in the .plt. This is required to make function
3147 pointers compare as equal between the normal executable and
3148 the shared library. */
0e1862bb 3149 if (! bfd_link_pic (info) && !h->def_regular)
ac145307
BS		 3150 {
3151 h->root.u.def.section = s;
3152 h->root.u.def.value = h->plt.offset;
3153 }
3154
3155 /* Make room for this entry. */
3156 s->size += PLT_ENTRY_SIZE;
3157 /* We also need to make an entry in the .got.plt section, which
3158 will be placed in the .got section by the linker script. */
3159 htab->elf.sgotplt->size += 4;
3160 /* We also need to make an entry in the .rel.plt section. */
3161 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
3162 }
3163 else
3164 {
3165 h->plt.offset = (bfd_vma) -1;
3166 h->needs_plt = 0;
3167 }
3168 }
3169 else
3170 {
3171 h->plt.offset = (bfd_vma) -1;
3172 h->needs_plt = 0;
3173 }
3174
3175 if (h->got.refcount > 0)
3176 {
3177 asection *s;
3178
3179 /* Make sure this symbol is output as a dynamic symbol.
3180 Undefined weak syms won't yet be marked as dynamic. */
3181 if (h->dynindx == -1
3182 && !h->forced_local)
3183 {
3184 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3185 return FALSE;
3186 }
3187
3188 s = htab->elf.sgot;
3189 h->got.offset = s->size;
3190 s->size += 4;
3191
3192 if (!(ELF_ST_VISIBILITY (h->other)
3193 && h->root.type == bfd_link_hash_undefweak))
3194 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3195 }
3196 else
3197 h->got.offset = (bfd_vma) -1;
3198
3199 if (eh->dyn_relocs == NULL)
3200 return TRUE;
3201
3202 /* Discard relocs on undefined weak syms with non-default
3203 visibility. */
0e1862bb 3204 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (htab->obfd))
ac145307
BS		 3205 {
3206 /* We use the pc_count field to hold the number of
3207 R_C6000_DSBT_INDEX relocs. */
3208 if (htab->params.dsbt_index != 0)
3209 {
3210 struct elf_dyn_relocs **pp;
3211
3212 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3213 {
3214 p->count -= p->pc_count;
3215 p->pc_count = 0;
3216 if (p->count == 0)
3217 *pp = p->next;
3218 else
3219 pp = &p->next;
3220 }
3221 }
3222
3223 if (eh->dyn_relocs != NULL
3224 && h->root.type == bfd_link_hash_undefweak)
3225 {
3226 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3227 eh->dyn_relocs = NULL;
3228
3229 /* Make sure undefined weak symbols are output as a dynamic
3230 symbol in PIEs. */
3231 else if (h->dynindx == -1
3232 && !h->forced_local)
3233 {
3234 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3235 return FALSE;
3236 }
3237 }
3238 }
3239
3240 /* Finally, allocate space. */
3241 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3242 {
3243 asection *sreloc;
3244
3245 sreloc = elf_section_data (p->sec)->sreloc;
3246
3247 BFD_ASSERT (sreloc != NULL);
3248 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3249 }
3250
3251 return TRUE;
3252}
3253
3254/* Find any dynamic relocs that apply to read-only sections. */
3255
3256static bfd_boolean
3257elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3258{
3259 struct elf32_tic6x_link_hash_entry *eh;
3260 struct elf_dyn_relocs *p;
3261
ac145307
BS		 3262 eh = (struct elf32_tic6x_link_hash_entry *) h;
3263 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3264 {
3265 asection *s = p->sec->output_section;
3266
3267 if (s != NULL && (s->flags & SEC_READONLY) != 0)
3268 {
3269 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3270
3271 info->flags |= DF_TEXTREL;
3272
3273 /* Not an error, just cut short the traversal. */
3274 return FALSE;
3275 }
3276 }
3277 return TRUE;
3278}
3279
3280/* Set the sizes of the dynamic sections. */
3281
3282static bfd_boolean
3283elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3284{
3285 struct elf32_tic6x_link_hash_table *htab;
3286 bfd *dynobj;
3287 asection *s;
3288 bfd_boolean relocs;
3289 bfd *ibfd;
3290
3291 htab = elf32_tic6x_hash_table (info);
3292 dynobj = htab->elf.dynobj;
3293 if (dynobj == NULL)
3294 abort ();
3295
3296 if (htab->elf.dynamic_sections_created)
3297 {
3298 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 3299 if (bfd_link_executable (info) && !info->nointerp)
ac145307 3300 {
3d4d4302 3301 s = bfd_get_linker_section (dynobj, ".interp");
ac145307
BS		 3302 if (s == NULL)
3303 abort ();
3304 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3305 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3306 }
3307 }
3308
3309 /* Set up .got offsets for local syms, and space for local dynamic
3310 relocs. */
c72f2fb2 3311 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
ac145307
BS		 3312 {
3313 bfd_signed_vma *local_got;
3314 bfd_signed_vma *end_local_got;
ac145307
BS		 3315 bfd_size_type locsymcount;
3316 Elf_Internal_Shdr *symtab_hdr;
3317 asection *srel;
3318
3319 for (s = ibfd->sections; s != NULL; s = s->next)
3320 {
3321 struct elf_dyn_relocs *p;
3322
3323 for (p = ((struct elf_dyn_relocs *)
3324 elf_section_data (s)->local_dynrel);
3325 p != NULL;
3326 p = p->next)
3327 {
3328 if (!bfd_is_abs_section (p->sec)
3329 && bfd_is_abs_section (p->sec->output_section))
3330 {
3331 /* Input section has been discarded, either because
3332 it is a copy of a linkonce section or due to
3333 linker script /DISCARD/, so we'll be discarding
3334 the relocs too. */
3335 }
3336 else if (p->count != 0)
3337 {
3338 srel = elf_section_data (p->sec)->sreloc;
3339 srel->size += p->count * sizeof (Elf32_External_Rela);
3340 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3341 info->flags |= DF_TEXTREL;
3342 }
3343 }
3344 }
3345
3346 local_got = elf_local_got_refcounts (ibfd);
3347 if (!local_got)
3348 continue;
3349
3350 symtab_hdr = &elf_symtab_hdr (ibfd);
3351 locsymcount = symtab_hdr->sh_info;
3352 end_local_got = local_got + locsymcount;
3353 s = htab->elf.sgot;
3354 srel = htab->elf.srelgot;
544008aa 3355 for (; local_got < end_local_got; ++local_got)
ac145307
BS		 3356 {
3357 if (*local_got > 0)
3358 {
3359 *local_got = s->size;
3360 s->size += 4;
3361
0e1862bb 3362 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
ac145307
BS		 3363 {
3364 srel->size += sizeof (Elf32_External_Rela);
3365 }
3366 }
3367 else
3368 *local_got = (bfd_vma) -1;
3369 }
3370 }
3371
3372 /* Allocate global sym .plt and .got entries, and space for global
3373 sym dynamic relocs. */
3374 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info);
3375
3376 /* We now have determined the sizes of the various dynamic sections.
3377 Allocate memory for them. */
3378 relocs = FALSE;
3379 for (s = dynobj->sections; s != NULL; s = s->next)
3380 {
3381 bfd_boolean strip_section = TRUE;
3382
3383 if ((s->flags & SEC_LINKER_CREATED) == 0)
3384 continue;
3385
3386 if (s == htab->dsbt)
3387 s->size = 4 * htab->params.dsbt_size;
3388 else if (s == htab->elf.splt
3389 || s == htab->elf.sgot
3390 || s == htab->elf.sgotplt
3391 || s == htab->sdynbss)
3392 {
3393 /* Strip this section if we don't need it; see the
3394 comment below. */
3395 /* We'd like to strip these sections if they aren't needed, but if
3396 we've exported dynamic symbols from them we must leave them.
3397 It's too late to tell BFD to get rid of the symbols. */
3398
3399 if (htab->elf.hplt != NULL)
3400 strip_section = FALSE;
3401
3402 /* Round up the size of the PLT section to a multiple of 32. */
3403 if (s == htab->elf.splt && s->size > 0)
3404 s->size = (s->size + 31) & ~(bfd_vma)31;
3405 }
3406 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
3407 {
3408 if (s->size != 0
3409 && s != htab->elf.srelplt)
3410 relocs = TRUE;
3411
3412 /* We use the reloc_count field as a counter if we need
3413 to copy relocs into the output file. */
3414 s->reloc_count = 0;
3415 }
3416 else
3417 {
3418 /* It's not one of our sections, so don't allocate space. */
3419 continue;
3420 }
3421
3422 if (s->size == 0)
3423 {
3424 /* If we don't need this section, strip it from the
3425 output file. This is mostly to handle .rel.bss and
3426 .rel.plt. We must create both sections in
3427 create_dynamic_sections, because they must be created
3428 before the linker maps input sections to output
3429 sections. The linker does that before
3430 adjust_dynamic_symbol is called, and it is that
3431 function which decides whether anything needs to go
3432 into these sections. */
3433 if (strip_section)
3434 s->flags |= SEC_EXCLUDE;
3435 continue;
3436 }
3437
3438 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3439 continue;
3440
3441 /* Allocate memory for the section contents. We use bfd_zalloc
3442 here in case unused entries are not reclaimed before the
3443 section's contents are written out. This should not happen,
3444 but this way if it does, we get a R_C6000_NONE reloc instead
3445 of garbage. */
3446 s->contents = bfd_zalloc (dynobj, s->size);
3447 if (s->contents == NULL)
3448 return FALSE;
3449 }
3450
3451 if (htab->elf.dynamic_sections_created)
3452 {
3453 /* Add some entries to the .dynamic section. We fill in the
3454 values later, in elf32_tic6x_finish_dynamic_sections, but we
3455 must add the entries now so that we get the correct size for
3456 the .dynamic section. The DT_DEBUG entry is filled in by the
3457 dynamic linker and used by the debugger. */
3458#define add_dynamic_entry(TAG, VAL) \
3459 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3460
0e1862bb 3461 if (bfd_link_executable (info))
ac145307
BS		 3462 {
3463 if (!add_dynamic_entry (DT_DEBUG, 0))
3464 return FALSE;
3465 }
3466
3467 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0)
3468 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size)
3469 || !add_dynamic_entry (DT_C6000_DSBT_INDEX,
3470 htab->params.dsbt_index))
3471 return FALSE;
3472
3473 if (htab->elf.splt->size != 0)
3474 {
3475 if (!add_dynamic_entry (DT_PLTGOT, 0)
3476 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3477 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3478 || !add_dynamic_entry (DT_JMPREL, 0))
3479 return FALSE;
3480 }
3481
3482 if (relocs)
3483 {
3484 if (!add_dynamic_entry (DT_RELA, 0)
3485 || !add_dynamic_entry (DT_RELASZ, 0)
3486 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3487 return FALSE;
3488
3489 /* If any dynamic relocs apply to a read-only section,
3490 then we need a DT_TEXTREL entry. */
3491 if ((info->flags & DF_TEXTREL) == 0)
3492 elf_link_hash_traverse (&htab->elf,
3493 elf32_tic6x_readonly_dynrelocs, info);
3494
3495 if ((info->flags & DF_TEXTREL) != 0)
3496 {
3497 if (!add_dynamic_entry (DT_TEXTREL, 0))
3498 return FALSE;
3499 }
3500 }
3501 }
3502#undef add_dynamic_entry
3503
3504 return TRUE;
3505}
3506
3507/* This function is called after all the input files have been read,
3508 and the input sections have been assigned to output sections. */
3509
3510static bfd_boolean
3511elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
3512{
0e1862bb 3513 if (elf32_tic6x_using_dsbt (output_bfd) && !bfd_link_relocatable (info)
04c3a755
NS		 3514 && !bfd_elf_stack_segment_size (output_bfd, info,
3515 "__stacksize", DEFAULT_STACK_SIZE))
3516 return FALSE;
ac145307
BS		 3517
3518 return TRUE;
3519}
3520
3521static bfd_boolean
3522elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3523 struct bfd_link_info *info)
3524{
3525 struct elf32_tic6x_link_hash_table *htab;
3526 bfd *dynobj;
3527 asection *sdyn;
3528
3529 htab = elf32_tic6x_hash_table (info);
3530 dynobj = htab->elf.dynobj;
3d4d4302 3531 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
ac145307
BS		 3532
3533 if (elf_hash_table (info)->dynamic_sections_created)
3534 {
3535 Elf32_External_Dyn * dyncon;
3536 Elf32_External_Dyn * dynconend;
3537
3538 BFD_ASSERT (sdyn != NULL);
3539
3540 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3541 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3542
3543 for (; dyncon < dynconend; dyncon++)
3544 {
3545 Elf_Internal_Dyn dyn;
3546 asection *s;
3547
3548 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3549
3550 switch (dyn.d_tag)
3551 {
3552 default:
3553 break;
3554
3555 case DT_C6000_DSBT_BASE:
3556 s = htab->dsbt;
3557 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset);
3558 break;
3559
3560 case DT_PLTGOT:
3561 s = htab->elf.sgotplt;
3562 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3563 break;
3564
3565 case DT_JMPREL:
3566 s = htab->elf.srelplt;
3567 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3568 break;
3569
3570 case DT_PLTRELSZ:
3571 s = htab->elf.srelplt;
3572 dyn.d_un.d_val = s->size;
3573 break;
3574 }
3575 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3576 }
3577
3578 /* Fill in the first entry in the procedure linkage table. */
3579 if (htab->elf.splt && htab->elf.splt->size > 0)
3580 {
3581 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma
3582 + htab->elf.sgotplt->output_offset
3583 - htab->dsbt->output_section->vma
3584 - htab->dsbt->output_offset) / 4;
3585
3586 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3587 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e,
3588 htab->elf.splt->contents);
3589 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3590 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e,
3591 htab->elf.splt->contents + 4);
3592 /* nop 3 */
3593 bfd_put_32 (output_bfd, 0x00004000,
3594 htab->elf.splt->contents + 8);
3595 /* b .s2 b2 */
3596 bfd_put_32 (output_bfd, 0x00080362,
3597 htab->elf.splt->contents + 12);
3598 /* nop 5 */
3599 bfd_put_32 (output_bfd, 0x00008000,
3600 htab->elf.splt->contents + 16);
3601
3602 elf_section_data (htab->elf.splt->output_section)
3603 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3604 }
3605 }
3606
3607 return TRUE;
3608}
3609
3610/* Return address for Ith PLT stub in section PLT, for relocation REL
3611 or (bfd_vma) -1 if it should not be included. */
3612
3613static bfd_vma
3614elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt,
3615 const arelent *rel ATTRIBUTE_UNUSED)
3616{
3617 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3618}
3619
3620static int
3621elf32_tic6x_obj_attrs_arg_type (int tag)
59e6276b 3622{
3cbd1c06 3623 if (tag == Tag_ABI_compatibility)
59e6276b 3624 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
87779176
JM		 3625 else if (tag & 1)
3626 return ATTR_TYPE_FLAG_STR_VAL;
59e6276b 3627 else
59e6276b
JM		 3628 return ATTR_TYPE_FLAG_INT_VAL;
3629}
3630
87779176
JM		 3631static int
3632elf32_tic6x_obj_attrs_order (int num)
3633{
3634 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
3635 return Tag_ABI_conformance;
3636 if ((num - 1) < Tag_ABI_conformance)
3637 return num - 1;
3638 return num;
3639}
3640
0547accf
JM		 3641static bfd_boolean
3642elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
3643{
3644 if ((tag & 127) < 64)
3645 {
3646 _bfd_error_handler
695344c0 3647 /* xgettext:c-format */
0547accf
JM		 3648 (_("%B: error: unknown mandatory EABI object attribute %d"),
3649 abfd, tag);
3650 bfd_set_error (bfd_error_bad_value);
3651 return FALSE;
3652 }
3653 else
3654 {
3655 _bfd_error_handler
695344c0 3656 /* xgettext:c-format */
0547accf
JM		 3657 (_("%B: warning: unknown EABI object attribute %d"),
3658 abfd, tag);
3659 return TRUE;
3660 }
3661}
3662
75fa6dc1 3663/* Merge the Tag_ISA attribute values ARCH1 and ARCH2
59e6276b
JM		 3664 and return the merged value. At present, all merges succeed, so no
3665 return value for errors is defined. */
3666
3667int
3668elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
3669{
3670 int min_arch, max_arch;
3671
3672 min_arch = (arch1 < arch2 ? arch1 : arch2);
3673 max_arch = (arch1 > arch2 ? arch1 : arch2);
3674
3675 /* In most cases, the numerically greatest value is the correct
3676 merged value, but merging C64 and C67 results in C674X. */
75fa6dc1
JM		 3677 if ((min_arch == C6XABI_Tag_ISA_C67X
3678 || min_arch == C6XABI_Tag_ISA_C67XP)
3679 && (max_arch == C6XABI_Tag_ISA_C64X
3680 || max_arch == C6XABI_Tag_ISA_C64XP))
3681 return C6XABI_Tag_ISA_C674X;
59e6276b
JM		 3682
3683 return max_arch;
3684}
3685
87779176
JM		 3686/* Convert a Tag_ABI_array_object_alignment or
3687 Tag_ABI_array_object_align_expected tag value TAG to a
3688 corresponding alignment value; return the alignment, or -1 for an
3689 unknown tag value. */
3690
3691static int
3692elf32_tic6x_tag_to_array_alignment (int tag)
3693{
3694 switch (tag)
3695 {
3696 case 0:
3697 return 8;
3698
3699 case 1:
3700 return 4;
3701
3702 case 2:
3703 return 16;
3704
3705 default:
3706 return -1;
3707 }
3708}
3709
3710/* Convert a Tag_ABI_array_object_alignment or
3711 Tag_ABI_array_object_align_expected alignment ALIGN to a
3712 corresponding tag value; return the tag value. */
3713
3714static int
3715elf32_tic6x_array_alignment_to_tag (int align)
3716{
3717 switch (align)
3718 {
3719 case 8:
3720 return 0;
3721
3722 case 4:
3723 return 1;
3724
3725 case 16:
3726 return 2;
3727
3728 default:
3729 abort ();
3730 }
3731}
3732
59e6276b
JM		 3733/* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3734 succeeded, FALSE otherwise. */
3735
3736static bfd_boolean
50e03d47 3737elf32_tic6x_merge_attributes (bfd *ibfd, struct bfd_link_info *info)
59e6276b 3738{
50e03d47 3739 bfd *obfd = info->output_bfd;
87779176 3740 bfd_boolean result = TRUE;
59e6276b
JM		 3741 obj_attribute *in_attr;
3742 obj_attribute *out_attr;
87779176
JM		 3743 int i;
3744 int array_align_in, array_align_out, array_expect_in, array_expect_out;
59e6276b
JM		 3745
3746 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3747 {
3748 /* This is the first object. Copy the attributes. */
3749 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3750
3751 out_attr = elf_known_obj_attributes_proc (obfd);
3752
3753 /* Use the Tag_null value to indicate the attributes have been
3754 initialized. */
3755 out_attr[0].i = 1;
3756
3757 return TRUE;
3758 }
3759
3760 in_attr = elf_known_obj_attributes_proc (ibfd);
3761 out_attr = elf_known_obj_attributes_proc (obfd);
3762
3763 /* No specification yet for handling of unknown attributes, so just
3764 ignore them and handle known ones. */
59e6276b 3765
87779176
JM		 3766 if (out_attr[Tag_ABI_stack_align_preserved].i
3767 < in_attr[Tag_ABI_stack_align_needed].i)
3768 {
3769 _bfd_error_handler
695344c0 3770 /* xgettext:c-format */
87779176
JM		 3771 (_("error: %B requires more stack alignment than %B preserves"),
3772 ibfd, obfd);
3773 result = FALSE;
3774 }
3775 if (in_attr[Tag_ABI_stack_align_preserved].i
3776 < out_attr[Tag_ABI_stack_align_needed].i)
3777 {
3778 _bfd_error_handler
695344c0 3779 /* xgettext:c-format */
87779176
JM		 3780 (_("error: %B requires more stack alignment than %B preserves"),
3781 obfd, ibfd);
3782 result = FALSE;
3783 }
3784
3785 array_align_in = elf32_tic6x_tag_to_array_alignment
3786 (in_attr[Tag_ABI_array_object_alignment].i);
3787 if (array_align_in == -1)
3788 {
3789 _bfd_error_handler
3790 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3791 ibfd);
3792 result = FALSE;
3793 }
3794 array_align_out = elf32_tic6x_tag_to_array_alignment
3795 (out_attr[Tag_ABI_array_object_alignment].i);
3796 if (array_align_out == -1)
3797 {
3798 _bfd_error_handler
3799 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3800 obfd);
3801 result = FALSE;
3802 }
3803 array_expect_in = elf32_tic6x_tag_to_array_alignment
3804 (in_attr[Tag_ABI_array_object_align_expected].i);
3805 if (array_expect_in == -1)
3806 {
3807 _bfd_error_handler
3808 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3809 ibfd);
3810 result = FALSE;
3811 }
3812 array_expect_out = elf32_tic6x_tag_to_array_alignment
3813 (out_attr[Tag_ABI_array_object_align_expected].i);
3814 if (array_expect_out == -1)
3815 {
3816 _bfd_error_handler
3817 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3818 obfd);
3819 result = FALSE;
3820 }
3821
3822 if (array_align_out < array_expect_in)
3823 {
3824 _bfd_error_handler
695344c0 3825 /* xgettext:c-format */
87779176
JM		 3826 (_("error: %B requires more array alignment than %B preserves"),
3827 ibfd, obfd);
3828 result = FALSE;
3829 }
3830 if (array_align_in < array_expect_out)
b5593623
JM		 3831 {
3832 _bfd_error_handler
695344c0 3833 /* xgettext:c-format */
87779176 3834 (_("error: %B requires more array alignment than %B preserves"),
b5593623 3835 obfd, ibfd);
87779176 3836 result = FALSE;
b5593623 3837 }
87779176
JM		 3838
3839 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
3840 {
3841 switch (i)
3842 {
3843 case Tag_ISA:
3844 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
3845 out_attr[i].i);
3846 break;
3847
3848 case Tag_ABI_wchar_t:
3849 if (out_attr[i].i == 0)
3850 out_attr[i].i = in_attr[i].i;
3851 if (out_attr[i].i != 0
3852 && in_attr[i].i != 0
3853 && out_attr[i].i != in_attr[i].i)
3854 {
3855 _bfd_error_handler
695344c0 3856 /* xgettext:c-format */
87779176
JM		 3857 (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd);
3858 }
3859 break;
3860
3861 case Tag_ABI_stack_align_needed:
3862 if (out_attr[i].i < in_attr[i].i)
3863 out_attr[i].i = in_attr[i].i;
3864 break;
3865
3866 case Tag_ABI_stack_align_preserved:
3867 if (out_attr[i].i > in_attr[i].i)
3868 out_attr[i].i = in_attr[i].i;
3869 break;
3870
3871 case Tag_ABI_DSBT:
3872 if (out_attr[i].i != in_attr[i].i)
3873 {
3874 _bfd_error_handler
695344c0 3875 /* xgettext:c-format */
87779176
JM		 3876 (_("warning: %B and %B differ in whether code is "
3877 "compiled for DSBT"),
3878 obfd, ibfd);
3879 }
3880 break;
3881
87779176 3882 case Tag_ABI_PIC:
c6a8f6e0
BS		 3883 case Tag_ABI_PID:
3884 if (out_attr[i].i > in_attr[i].i)
3885 out_attr[i].i = in_attr[i].i;
87779176
JM		 3886 break;
3887
3888 case Tag_ABI_array_object_alignment:
3889 if (array_align_out != -1
3890 && array_align_in != -1
3891 && array_align_out > array_align_in)
3892 out_attr[i].i
3893 = elf32_tic6x_array_alignment_to_tag (array_align_in);
3894 break;
3895
3896 case Tag_ABI_array_object_align_expected:
3897 if (array_expect_out != -1
3898 && array_expect_in != -1
3899 && array_expect_out < array_expect_in)
3900 out_attr[i].i
3901 = elf32_tic6x_array_alignment_to_tag (array_expect_in);
3902 break;
3903
3904 case Tag_ABI_conformance:
3905 /* Merging for this attribute is not specified. As on ARM,
3906 treat a missing attribute as no claim to conform and only
3907 merge identical values. */
3908 if (out_attr[i].s == NULL
3909 || in_attr[i].s == NULL
3910 || strcmp (out_attr[i].s,
3911 in_attr[i].s) != 0)
3912 out_attr[i].s = NULL;
3913 break;
3914
0547accf
JM		 3915 case Tag_ABI_compatibility:
3916 /* Merged in _bfd_elf_merge_object_attributes. */
3917 break;
3918
87779176 3919 default:
0547accf
JM		 3920 result
3921 = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
87779176
JM		 3922 break;
3923 }
3924
3925 if (in_attr[i].type && !out_attr[i].type)
3926 out_attr[i].type = in_attr[i].type;
3927 }
3928
3cbd1c06 3929 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
50e03d47 3930 if (!_bfd_elf_merge_object_attributes (ibfd, info))
3cbd1c06 3931 return FALSE;
59e6276b 3932
0547accf
JM		 3933 result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
3934
87779176 3935 return result;
59e6276b
JM		 3936}
3937
3938static bfd_boolean
50e03d47 3939elf32_tic6x_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
59e6276b 3940{
50e03d47 3941 if (!_bfd_generic_verify_endian_match (ibfd, info))
59e6276b
JM		 3942 return FALSE;
3943
50e03d47 3944 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (info->output_bfd))
b781d74f
JM		 3945 return TRUE;
3946
50e03d47 3947 if (!elf32_tic6x_merge_attributes (ibfd, info))
59e6276b
JM		 3948 return FALSE;
3949
3950 return TRUE;
3951}
3952
fbd9ad90
PB		 3953/* Add a new unwind edit to the list described by HEAD, TAIL. If TINDEX is zero,
3954 adds the edit to the start of the list. (The list must be built in order of
3955 ascending TINDEX: the function's callers are primarily responsible for
3956 maintaining that condition). */
3957
3958static void
3959elf32_tic6x_add_unwind_table_edit (tic6x_unwind_table_edit **head,
3960 tic6x_unwind_table_edit **tail,
3961 tic6x_unwind_edit_type type,
3962 asection *linked_section,
3963 unsigned int tindex)
3964{
3965 tic6x_unwind_table_edit *new_edit = (tic6x_unwind_table_edit *)
3966 xmalloc (sizeof (tic6x_unwind_table_edit));
68ffbac6 3967
fbd9ad90
PB		 3968 new_edit->type = type;
3969 new_edit->linked_section = linked_section;
3970 new_edit->index = tindex;
68ffbac6 3971
fbd9ad90
PB		 3972 if (tindex > 0)
3973 {
3974 new_edit->next = NULL;
3975
3976 if (*tail)
3977 (*tail)->next = new_edit;
3978
3979 (*tail) = new_edit;
3980
3981 if (!*head)
3982 (*head) = new_edit;
3983 }
3984 else
3985 {
3986 new_edit->next = *head;
3987
3988 if (!*tail)
3989 *tail = new_edit;
3990
3991 *head = new_edit;
3992 }
3993}
3994
3995static _tic6x_elf_section_data *
3996get_tic6x_elf_section_data (asection * sec)
3997{
3998 if (sec && sec->owner && is_tic6x_elf (sec->owner))
3999 return elf32_tic6x_section_data (sec);
4000 else
4001 return NULL;
4002}
4003
4004
4005/* Increase the size of EXIDX_SEC by ADJUST bytes. ADJUST must be negative. */
4006static void
4007elf32_tic6x_adjust_exidx_size (asection *exidx_sec, int adjust)
4008{
4009 asection *out_sec;
4010
4011 if (!exidx_sec->rawsize)
4012 exidx_sec->rawsize = exidx_sec->size;
4013
4014 bfd_set_section_size (exidx_sec->owner, exidx_sec, exidx_sec->size + adjust);
4015 out_sec = exidx_sec->output_section;
4016 /* Adjust size of output section. */
4017 bfd_set_section_size (out_sec->owner, out_sec, out_sec->size +adjust);
4018}
4019
4020/* Insert an EXIDX_CANTUNWIND marker at the end of a section. */
4021static void
4022elf32_tic6x_insert_cantunwind_after (asection *text_sec, asection *exidx_sec)
4023{
4024 struct _tic6x_elf_section_data *exidx_data;
4025
4026 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4027 elf32_tic6x_add_unwind_table_edit (
4028 &exidx_data->u.exidx.unwind_edit_list,
4029 &exidx_data->u.exidx.unwind_edit_tail,
4030 INSERT_EXIDX_CANTUNWIND_AT_END, text_sec, UINT_MAX);
4031
4032 elf32_tic6x_adjust_exidx_size (exidx_sec, 8);
4033}
4034
4035/* Scan .cx6abi.exidx tables, and create a list describing edits which
4036 should be made to those tables, such that:
68ffbac6 4037
fbd9ad90
PB		 4038 1. Regions without unwind data are marked with EXIDX_CANTUNWIND entries.
4039 2. Duplicate entries are merged together (EXIDX_CANTUNWIND, or unwind
4040 codes which have been inlined into the index).
4041
4042 If MERGE_EXIDX_ENTRIES is false, duplicate entries are not merged.
4043
4044 The edits are applied when the tables are written
4045 (in elf32_tic6x_write_section).
4046*/
4047
4048bfd_boolean
4049elf32_tic6x_fix_exidx_coverage (asection **text_section_order,
4050 unsigned int num_text_sections,
4051 struct bfd_link_info *info,
4052 bfd_boolean merge_exidx_entries)
4053{
4054 bfd *inp;
4055 unsigned int last_second_word = 0, i;
4056 asection *last_exidx_sec = NULL;
4057 asection *last_text_sec = NULL;
4058 int last_unwind_type = -1;
4059
4060 /* Walk over all EXIDX sections, and create backlinks from the corrsponding
4061 text sections. */
c72f2fb2 4062 for (inp = info->input_bfds; inp != NULL; inp = inp->link.next)
fbd9ad90
PB		 4063 {
4064 asection *sec;
68ffbac6 4065
fbd9ad90
PB		 4066 for (sec = inp->sections; sec != NULL; sec = sec->next)
4067 {
4068 struct bfd_elf_section_data *elf_sec = elf_section_data (sec);
4069 Elf_Internal_Shdr *hdr = &elf_sec->this_hdr;
68ffbac6 4070
fbd9ad90
PB		 4071 if (!hdr || hdr->sh_type != SHT_C6000_UNWIND)
4072 continue;
68ffbac6 4073
fbd9ad90
PB		 4074 if (elf_sec->linked_to)
4075 {
4076 Elf_Internal_Shdr *linked_hdr
4077 = &elf_section_data (elf_sec->linked_to)->this_hdr;
4078 struct _tic6x_elf_section_data *linked_sec_tic6x_data
4079 = get_tic6x_elf_section_data (linked_hdr->bfd_section);
4080
4081 if (linked_sec_tic6x_data == NULL)
4082 continue;
4083
4084 /* Link this .c6xabi.exidx section back from the
4085 text section it describes. */
4086 linked_sec_tic6x_data->u.text.tic6x_exidx_sec = sec;
4087 }
4088 }
4089 }
4090
4091 /* Walk all text sections in order of increasing VMA. Eilminate duplicate
4092 index table entries (EXIDX_CANTUNWIND and inlined unwind opcodes),
4093 and add EXIDX_CANTUNWIND entries for sections with no unwind table data. */
4094
4095 for (i = 0; i < num_text_sections; i++)
4096 {
4097 asection *sec = text_section_order[i];
4098 asection *exidx_sec;
4099 struct _tic6x_elf_section_data *tic6x_data
4100 = get_tic6x_elf_section_data (sec);
4101 struct _tic6x_elf_section_data *exidx_data;
4102 bfd_byte *contents = NULL;
4103 int deleted_exidx_bytes = 0;
4104 bfd_vma j;
4105 tic6x_unwind_table_edit *unwind_edit_head = NULL;
4106 tic6x_unwind_table_edit *unwind_edit_tail = NULL;
4107 Elf_Internal_Shdr *hdr;
4108 bfd *ibfd;
4109
4110 if (tic6x_data == NULL)
4111 continue;
4112
4113 exidx_sec = tic6x_data->u.text.tic6x_exidx_sec;
4114 if (exidx_sec == NULL)
4115 {
4116 /* Section has no unwind data. */
4117 if (last_unwind_type == 0 || !last_exidx_sec)
4118 continue;
4119
4120 /* Ignore zero sized sections. */
4121 if (sec->size == 0)
4122 continue;
4123
4124 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4125 last_unwind_type = 0;
4126 continue;
4127 }
4128
4129 /* Skip /DISCARD/ sections. */
4130 if (bfd_is_abs_section (exidx_sec->output_section))
4131 continue;
4132
4133 hdr = &elf_section_data (exidx_sec)->this_hdr;
4134 if (hdr->sh_type != SHT_C6000_UNWIND)
4135 continue;
68ffbac6 4136
fbd9ad90
PB		 4137 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4138 if (exidx_data == NULL)
4139 continue;
68ffbac6 4140
fbd9ad90 4141 ibfd = exidx_sec->owner;
68ffbac6 4142
fbd9ad90
PB		 4143 if (hdr->contents != NULL)
4144 contents = hdr->contents;
4145 else if (! bfd_malloc_and_get_section (ibfd, exidx_sec, &contents))
4146 /* An error? */
4147 continue;
4148
4149 for (j = 0; j < hdr->sh_size; j += 8)
4150 {
4151 unsigned int second_word = bfd_get_32 (ibfd, contents + j + 4);
4152 int unwind_type;
4153 int elide = 0;
4154
4155 /* An EXIDX_CANTUNWIND entry. */
4156 if (second_word == 1)
4157 {
4158 if (last_unwind_type == 0)
4159 elide = 1;
4160 unwind_type = 0;
4161 }
4162 /* Inlined unwinding data. Merge if equal to previous. */
4163 else if ((second_word & 0x80000000) != 0)
4164 {
4165 if (merge_exidx_entries
4166 && last_second_word == second_word
4167 && last_unwind_type == 1)
4168 elide = 1;
4169 unwind_type = 1;
4170 last_second_word = second_word;
4171 }
4172 /* Normal table entry. In theory we could merge these too,
4173 but duplicate entries are likely to be much less common. */
4174 else
4175 unwind_type = 2;
4176
4177 if (elide)
4178 {
4179 elf32_tic6x_add_unwind_table_edit (&unwind_edit_head,
4180 &unwind_edit_tail, DELETE_EXIDX_ENTRY, NULL, j / 8);
4181
4182 deleted_exidx_bytes += 8;
4183 }
4184
4185 last_unwind_type = unwind_type;
4186 }
4187
4188 /* Free contents if we allocated it ourselves. */
4189 if (contents != hdr->contents)
4190 free (contents);
4191
4192 /* Record edits to be applied later (in elf32_tic6x_write_section). */
4193 exidx_data->u.exidx.unwind_edit_list = unwind_edit_head;
4194 exidx_data->u.exidx.unwind_edit_tail = unwind_edit_tail;
68ffbac6 4195
fbd9ad90
PB		 4196 if (deleted_exidx_bytes > 0)
4197 elf32_tic6x_adjust_exidx_size (exidx_sec, -deleted_exidx_bytes);
4198
4199 last_exidx_sec = exidx_sec;
4200 last_text_sec = sec;
4201 }
4202
4203 /* Add terminating CANTUNWIND entry. */
4204 if (last_exidx_sec && last_unwind_type != 0)
4205 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4206
4207 return TRUE;
4208}
4209
4210/* Add ADDEND to lower 31 bits of VAL, leaving other bits unmodified. */
4211
4212static unsigned long
4213elf32_tic6x_add_low31 (unsigned long val, bfd_vma addend)
4214{
4215 return (val & ~0x7ffffffful) | ((val + addend) & 0x7ffffffful);
4216}
4217
4218/* Copy an .c6xabi.exidx table entry, adding OFFSET to (applied) PREL31
4219 relocations. OFFSET is in bytes, and will be scaled before encoding. */
4220
4221
4222static void
4223elf32_tic6x_copy_exidx_entry (bfd *output_bfd, bfd_byte *to, bfd_byte *from,
4224 bfd_vma offset)
4225{
4226 unsigned long first_word = bfd_get_32 (output_bfd, from);
4227 unsigned long second_word = bfd_get_32 (output_bfd, from + 4);
4228
4229 offset >>= 1;
4230 /* High bit of first word is supposed to be zero. */
4231 if ((first_word & 0x80000000ul) == 0)
4232 first_word = elf32_tic6x_add_low31 (first_word, offset);
68ffbac6 4233
fbd9ad90
PB		 4234 /* If the high bit of the first word is clear, and the bit pattern is not 0x1
4235 (EXIDX_CANTUNWIND), this is an offset to an .c6xabi.extab entry. */
4236 if ((second_word != 0x1) && ((second_word & 0x80000000ul) == 0))
4237 second_word = elf32_tic6x_add_low31 (second_word, offset);
68ffbac6 4238
fbd9ad90
PB		 4239 bfd_put_32 (output_bfd, first_word, to);
4240 bfd_put_32 (output_bfd, second_word, to + 4);
4241}
4242
4243/* Do the actual mangling of exception index tables. */
4244
4245static bfd_boolean
4246elf32_tic6x_write_section (bfd *output_bfd,
4247 struct bfd_link_info *link_info,
4248 asection *sec,
4249 bfd_byte *contents)
4250{
4251 _tic6x_elf_section_data *tic6x_data;
4252 struct elf32_tic6x_link_hash_table *globals
4253 = elf32_tic6x_hash_table (link_info);
4254 bfd_vma offset = sec->output_section->vma + sec->output_offset;
4255
4256 if (globals == NULL)
4257 return FALSE;
4258
4259 /* If this section has not been allocated an _tic6x_elf_section_data
4260 structure then we cannot record anything. */
4261 tic6x_data = get_tic6x_elf_section_data (sec);
4262 if (tic6x_data == NULL)
4263 return FALSE;
4264
4265 if (tic6x_data->elf.this_hdr.sh_type != SHT_C6000_UNWIND)
4266 return FALSE;
4267
4268 tic6x_unwind_table_edit *edit_node
4269 = tic6x_data->u.exidx.unwind_edit_list;
4270 /* Now, sec->size is the size of the section we will write. The original
4271 size (before we merged duplicate entries and inserted EXIDX_CANTUNWIND
4272 markers) was sec->rawsize. (This isn't the case if we perform no
4273 edits, then rawsize will be zero and we should use size). */
4274 bfd_byte *edited_contents = (bfd_byte *) bfd_malloc (sec->size);
4275 unsigned int input_size = sec->rawsize ? sec->rawsize : sec->size;
4276 unsigned int in_index, out_index;
4277 bfd_vma add_to_offsets = 0;
4278
4279 for (in_index = 0, out_index = 0; in_index * 8 < input_size || edit_node;)
4280 {
4281 if (edit_node)
4282 {
4283 unsigned int edit_index = edit_node->index;
68ffbac6 4284
fbd9ad90
PB		 4285 if (in_index < edit_index && in_index * 8 < input_size)
4286 {
4287 elf32_tic6x_copy_exidx_entry (output_bfd,
4288 edited_contents + out_index * 8,
4289 contents + in_index * 8, add_to_offsets);
4290 out_index++;
4291 in_index++;
4292 }
4293 else if (in_index == edit_index
4294 || (in_index * 8 >= input_size
4295 && edit_index == UINT_MAX))
4296 {
4297 switch (edit_node->type)
4298 {
4299 case DELETE_EXIDX_ENTRY:
4300 in_index++;
4301 add_to_offsets += 8;
4302 break;
68ffbac6 4303
fbd9ad90
PB		 4304 case INSERT_EXIDX_CANTUNWIND_AT_END:
4305 {
4306 asection *text_sec = edit_node->linked_section;
4307 bfd_vma text_offset = text_sec->output_section->vma
4308 + text_sec->output_offset
4309 + text_sec->size;
4310 bfd_vma exidx_offset = offset + out_index * 8;
4311 unsigned long prel31_offset;
4312
4313 /* Note: this is meant to be equivalent to an
4314 R_C6000_PREL31 relocation. These synthetic
4315 EXIDX_CANTUNWIND markers are not relocated by the
4316 usual BFD method. */
4317 prel31_offset = ((text_offset - exidx_offset) >> 1)
4318 & 0x7ffffffful;
4319
4320 /* First address we can't unwind. */
4321 bfd_put_32 (output_bfd, prel31_offset,
4322 &edited_contents[out_index * 8]);
4323
4324 /* Code for EXIDX_CANTUNWIND. */
4325 bfd_put_32 (output_bfd, 0x1,
4326 &edited_contents[out_index * 8 + 4]);
4327
4328 out_index++;
4329 add_to_offsets -= 8;
4330 }
4331 break;
4332 }
68ffbac6 4333
fbd9ad90
PB		 4334 edit_node = edit_node->next;
4335 }
4336 }
4337 else
4338 {
4339 /* No more edits, copy remaining entries verbatim. */
4340 elf32_tic6x_copy_exidx_entry (output_bfd,
4341 edited_contents + out_index * 8,
4342 contents + in_index * 8, add_to_offsets);
4343 out_index++;
4344 in_index++;
4345 }
4346 }
4347
4348 if (!(sec->flags & SEC_EXCLUDE) && !(sec->flags & SEC_NEVER_LOAD))
4349 bfd_set_section_contents (output_bfd, sec->output_section,
4350 edited_contents,
4351 (file_ptr) sec->output_offset, sec->size);
4352
4353 return TRUE;
4354}
4355
6d00b590 4356#define TARGET_LITTLE_SYM tic6x_elf32_le_vec
40b36596 4357#define TARGET_LITTLE_NAME "elf32-tic6x-le"
6d00b590 4358#define TARGET_BIG_SYM tic6x_elf32_be_vec
40b36596
JM		 4359#define TARGET_BIG_NAME "elf32-tic6x-be"
4360#define ELF_ARCH bfd_arch_tic6x
ae95ffa6 4361#define ELF_TARGET_ID TIC6X_ELF_DATA
40b36596 4362#define ELF_MACHINE_CODE EM_TI_C6000
ac145307 4363#define ELF_MAXPAGESIZE 0x1000
40b36596
JM		 4364#define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
4365#define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
59e6276b 4366#define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
41820509 4367#define bfd_elf32_mkobject elf32_tic6x_mkobject
ac145307 4368#define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
41820509 4369#define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
04c3a755 4370#define elf_backend_stack_align 8
40b36596
JM		 4371#define elf_backend_can_gc_sections 1
4372#define elf_backend_default_use_rela_p 1
4373#define elf_backend_may_use_rel_p 1
4374#define elf_backend_may_use_rela_p 1
59e6276b 4375#define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
0547accf 4376#define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
87779176 4377#define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
75fa6dc1 4378#define elf_backend_obj_attrs_section ".c6xabi.attributes"
59e6276b
JM		 4379#define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
4380#define elf_backend_obj_attrs_vendor "c6xabi"
ac145307
BS		 4381#define elf_backend_can_refcount 1
4382#define elf_backend_want_got_plt 1
4383#define elf_backend_want_dynbss 1
4384#define elf_backend_plt_readonly 1
40b36596 4385#define elf_backend_rela_normal 1
ac145307 4386#define elf_backend_got_header_size 8
1bce6bd8 4387#define elf_backend_fake_sections elf32_tic6x_fake_sections
ac145307 4388#define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook
9cf0e282 4389#define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections
ac145307
BS		 4390#define elf_backend_create_dynamic_sections \
4391 elf32_tic6x_create_dynamic_sections
4392#define elf_backend_adjust_dynamic_symbol \
4393 elf32_tic6x_adjust_dynamic_symbol
4394#define elf_backend_check_relocs elf32_tic6x_check_relocs
4395#define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
4396#define elf_backend_symbol_processing elf32_tic6x_symbol_processing
4397#define elf_backend_link_output_symbol_hook \
4398 elf32_tic6x_link_output_symbol_hook
4399#define elf_backend_section_from_bfd_section \
4400 elf32_tic6x_section_from_bfd_section
40b36596 4401#define elf_backend_relocate_section elf32_tic6x_relocate_section
2a616379 4402#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
ac145307
BS		 4403#define elf_backend_finish_dynamic_symbol \
4404 elf32_tic6x_finish_dynamic_symbol
4405#define elf_backend_always_size_sections \
4406 elf32_tic6x_always_size_sections
4407#define elf_backend_size_dynamic_sections \
4408 elf32_tic6x_size_dynamic_sections
4409#define elf_backend_finish_dynamic_sections \
4410 elf32_tic6x_finish_dynamic_sections
c6a8f6e0
BS		 4411#define bfd_elf32_bfd_final_link \
4412 elf32_tic6x_final_link
fbd9ad90 4413#define elf_backend_write_section elf32_tic6x_write_section
40b36596 4414#define elf_info_to_howto elf32_tic6x_info_to_howto
41820509 4415#define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
40b36596 4416
ac145307
BS		 4417#undef elf_backend_omit_section_dynsym
4418#define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
4419#define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
4420
2a616379
BS		 4421#include "elf32-target.h"
4422
4423#undef elf32_bed
4424#define elf32_bed elf32_tic6x_linux_bed
4425
4426#undef TARGET_LITTLE_SYM
6d00b590 4427#define TARGET_LITTLE_SYM tic6x_elf32_linux_le_vec
2a616379
BS		 4428#undef TARGET_LITTLE_NAME
4429#define TARGET_LITTLE_NAME "elf32-tic6x-linux-le"
4430#undef TARGET_BIG_SYM
6d00b590 4431#define TARGET_BIG_SYM tic6x_elf32_linux_be_vec
2a616379
BS		 4432#undef TARGET_BIG_NAME
4433#define TARGET_BIG_NAME "elf32-tic6x-linux-be"
4434#undef ELF_OSABI
4435#define ELF_OSABI ELFOSABI_C6000_LINUX
4436
2a616379
BS		 4437#include "elf32-target.h"
4438
4439#undef elf32_bed
4440#define elf32_bed elf32_tic6x_elf_bed
4441
4442#undef TARGET_LITTLE_SYM
6d00b590 4443#define TARGET_LITTLE_SYM tic6x_elf32_c6000_le_vec
2a616379
BS		 4444#undef TARGET_LITTLE_NAME
4445#define TARGET_LITTLE_NAME "elf32-tic6x-elf-le"
4446#undef TARGET_BIG_SYM
6d00b590 4447#define TARGET_BIG_SYM tic6x_elf32_c6000_be_vec
2a616379
BS		 4448#undef TARGET_BIG_NAME
4449#define TARGET_BIG_NAME "elf32-tic6x-elf-be"
4450#undef ELF_OSABI
4451#define ELF_OSABI ELFOSABI_C6000_ELFABI
4452
40b36596 4453#include "elf32-target.h"
GDB Binutils - Deliverables
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