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Missing ChangeLog and files for commit 8b00c176168dc7b0d78d0dc1f7d42f915375dc4a
[deliverable/binutils-gdb.git] / bfd / elf32-tic6x.c
CommitLineData
40b36596 1/* 32-bit ELF support for TI C6X
2571583a 2 Copyright (C) 2010-2017 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
ac145307
BS		 46 /* C6X specific command line arguments. */
47 struct elf32_tic6x_params params;
48
49 /* Small local sym cache. */
50 struct sym_cache sym_cache;
51
52 /* The output BFD, for convenience. */
53 bfd *obfd;
54
55 /* The .dsbt section. */
56 asection *dsbt;
57};
58
59/* Get the TI C6X ELF linker hash table from a link_info structure. */
60
61#define elf32_tic6x_hash_table(p) \
62 ((struct elf32_tic6x_link_hash_table *) ((p)->hash))
63
64/* TI C6X ELF linker hash entry. */
65
66struct elf32_tic6x_link_hash_entry
67{
68 struct elf_link_hash_entry elf;
69
70 /* Track dynamic relocs copied for this symbol. */
71 struct elf_dyn_relocs *dyn_relocs;
72};
73
fbd9ad90
PB		 74typedef enum
75{
76 DELETE_EXIDX_ENTRY,
77 INSERT_EXIDX_CANTUNWIND_AT_END
78}
79tic6x_unwind_edit_type;
80
81/* A (sorted) list of edits to apply to an unwind table. */
82typedef struct tic6x_unwind_table_edit
83{
84 tic6x_unwind_edit_type type;
85 /* Note: we sometimes want to insert an unwind entry corresponding to a
86 section different from the one we're currently writing out, so record the
87 (text) section this edit relates to here. */
88 asection *linked_section;
89 unsigned int index;
90 struct tic6x_unwind_table_edit *next;
91}
92tic6x_unwind_table_edit;
93
94typedef struct _tic6x_elf_section_data
95{
96 /* Information about mapping symbols. */
97 struct bfd_elf_section_data elf;
98 /* Information about unwind tables. */
99 union
100 {
101 /* Unwind info attached to a text section. */
102 struct
103 {
104 asection *tic6x_exidx_sec;
105 } text;
106
107 /* Unwind info attached to an .c6xabi.exidx section. */
108 struct
109 {
110 tic6x_unwind_table_edit *unwind_edit_list;
111 tic6x_unwind_table_edit *unwind_edit_tail;
112 } exidx;
113 } u;
114}
115_tic6x_elf_section_data;
116
117#define elf32_tic6x_section_data(sec) \
118 ((_tic6x_elf_section_data *) elf_section_data (sec))
119
41820509
JM		 120struct elf32_tic6x_obj_tdata
121{
122 struct elf_obj_tdata root;
123
124 /* Whether to use RELA relocations when generating relocations.
125 This is a per-object flag to allow the assembler to generate REL
126 relocations for use in linker testcases. */
127 bfd_boolean use_rela_p;
128};
129
130#define elf32_tic6x_tdata(abfd) \
131 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
40b36596 132
ac145307
BS		 133#define is_tic6x_elf(bfd) \
134 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
135 && elf_tdata (bfd) != NULL \
136 && elf_object_id (bfd) == TIC6X_ELF_DATA)
137
138/* C6X ELF uses two common sections. One is the usual one, and the
139 other is for small objects. All the small objects are kept
140 together, and then referenced via the gp pointer, which yields
141 faster assembler code. This is what we use for the small common
142 section. This approach is copied from ecoff.c. */
143static asection tic6x_elf_scom_section;
144static asymbol tic6x_elf_scom_symbol;
145static asymbol *tic6x_elf_scom_symbol_ptr;
146
40b36596
JM		 147static reloc_howto_type elf32_tic6x_howto_table[] =
148{
149 HOWTO (R_C6000_NONE, /* type */
150 0, /* rightshift */
6346d5ca 151 3, /* size (0 = byte, 1 = short, 2 = long) */
40b36596
JM		 152 0, /* bitsize */
153 FALSE, /* pc_relative */
154 0, /* bitpos */
155 complain_overflow_dont,/* complain_on_overflow */
156 bfd_elf_generic_reloc, /* special_function */
157 "R_C6000_NONE", /* name */
41820509
JM		 158 FALSE, /* partial_inplace */
159 0, /* src_mask */
160 0, /* dst_mask */
161 FALSE), /* pcrel_offset */
162 HOWTO (R_C6000_ABS32, /* type */
163 0, /* rightshift */
164 2, /* size (0 = byte, 1 = short, 2 = long) */
165 32, /* bitsize */
166 FALSE, /* pc_relative */
167 0, /* bitpos */
168 complain_overflow_dont,/* complain_on_overflow */
169 bfd_elf_generic_reloc, /* special_function */
170 "R_C6000_ABS32", /* name */
171 FALSE, /* partial_inplace */
172 0, /* src_mask */
173 0xffffffff, /* dst_mask */
174 FALSE), /* pcrel_offset */
175 HOWTO (R_C6000_ABS16, /* type */
176 0, /* rightshift */
177 1, /* size (0 = byte, 1 = short, 2 = long) */
178 16, /* bitsize */
179 FALSE, /* pc_relative */
180 0, /* bitpos */
181 complain_overflow_bitfield,/* complain_on_overflow */
182 bfd_elf_generic_reloc, /* special_function */
183 "R_C6000_ABS16", /* name */
184 FALSE, /* partial_inplace */
185 0, /* src_mask */
186 0x0000ffff, /* dst_mask */
187 FALSE), /* pcrel_offset */
188 HOWTO (R_C6000_ABS8, /* type */
189 0, /* rightshift */
190 0, /* size (0 = byte, 1 = short, 2 = long) */
191 8, /* bitsize */
192 FALSE, /* pc_relative */
193 0, /* bitpos */
194 complain_overflow_bitfield,/* complain_on_overflow */
195 bfd_elf_generic_reloc, /* special_function */
196 "R_C6000_ABS8", /* name */
197 FALSE, /* partial_inplace */
198 0, /* src_mask */
199 0x000000ff, /* dst_mask */
200 FALSE), /* pcrel_offset */
201 HOWTO (R_C6000_PCR_S21, /* type */
202 2, /* rightshift */
203 2, /* size (0 = byte, 1 = short, 2 = long) */
204 21, /* bitsize */
205 TRUE, /* pc_relative */
206 7, /* bitpos */
207 complain_overflow_signed,/* complain_on_overflow */
208 bfd_elf_generic_reloc, /* special_function */
209 "R_C6000_PCR_S21", /* name */
210 FALSE, /* partial_inplace */
211 0, /* src_mask */
212 0x0fffff80, /* dst_mask */
213 TRUE), /* pcrel_offset */
214 HOWTO (R_C6000_PCR_S12, /* type */
215 2, /* rightshift */
216 2, /* size (0 = byte, 1 = short, 2 = long) */
217 12, /* bitsize */
218 TRUE, /* pc_relative */
219 16, /* bitpos */
220 complain_overflow_signed,/* complain_on_overflow */
221 bfd_elf_generic_reloc, /* special_function */
222 "R_C6000_PCR_S12", /* name */
223 FALSE, /* partial_inplace */
224 0, /* src_mask */
225 0x0fff0000, /* dst_mask */
226 TRUE), /* pcrel_offset */
227 HOWTO (R_C6000_PCR_S10, /* type */
228 2, /* rightshift */
229 2, /* size (0 = byte, 1 = short, 2 = long) */
230 10, /* bitsize */
231 TRUE, /* pc_relative */
232 13, /* bitpos */
233 complain_overflow_signed,/* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_C6000_PCR_S10", /* name */
236 FALSE, /* partial_inplace */
237 0, /* src_mask */
238 0x007fe000, /* dst_mask */
239 TRUE), /* pcrel_offset */
240 HOWTO (R_C6000_PCR_S7, /* type */
241 2, /* rightshift */
242 2, /* size (0 = byte, 1 = short, 2 = long) */
243 7, /* bitsize */
244 TRUE, /* pc_relative */
245 16, /* bitpos */
246 complain_overflow_signed,/* complain_on_overflow */
247 bfd_elf_generic_reloc, /* special_function */
248 "R_C6000_PCR_S7", /* name */
249 FALSE, /* partial_inplace */
250 0, /* src_mask */
251 0x007f0000, /* dst_mask */
252 TRUE), /* pcrel_offset */
253 HOWTO (R_C6000_ABS_S16, /* type */
254 0, /* rightshift */
255 2, /* size (0 = byte, 1 = short, 2 = long) */
256 16, /* bitsize */
257 FALSE, /* pc_relative */
258 7, /* bitpos */
259 complain_overflow_signed,/* complain_on_overflow */
260 bfd_elf_generic_reloc, /* special_function */
261 "R_C6000_ABS_S16", /* name */
262 FALSE, /* partial_inplace */
263 0, /* src_mask */
264 0x007fff80, /* dst_mask */
265 FALSE), /* pcrel_offset */
266 HOWTO (R_C6000_ABS_L16, /* type */
267 0, /* rightshift */
268 2, /* size (0 = byte, 1 = short, 2 = long) */
269 16, /* bitsize */
270 FALSE, /* pc_relative */
271 7, /* bitpos */
272 complain_overflow_dont,/* complain_on_overflow */
273 bfd_elf_generic_reloc, /* special_function */
274 "R_C6000_ABS_L16", /* name */
275 FALSE, /* partial_inplace */
276 0, /* src_mask */
277 0x007fff80, /* dst_mask */
278 FALSE), /* pcrel_offset */
279 HOWTO (R_C6000_ABS_H16, /* type */
280 16, /* rightshift */
281 2, /* size (0 = byte, 1 = short, 2 = long) */
282 16, /* bitsize */
283 FALSE, /* pc_relative */
284 7, /* bitpos */
285 complain_overflow_dont,/* complain_on_overflow */
286 bfd_elf_generic_reloc, /* special_function */
287 "R_C6000_ABS_H16", /* name */
288 FALSE, /* partial_inplace */
289 0, /* src_mask */
290 0x007fff80, /* dst_mask */
291 FALSE), /* pcrel_offset */
292 HOWTO (R_C6000_SBR_U15_B, /* type */
293 0, /* rightshift */
294 2, /* size (0 = byte, 1 = short, 2 = long) */
295 15, /* bitsize */
296 FALSE, /* pc_relative */
297 8, /* bitpos */
298 complain_overflow_unsigned,/* complain_on_overflow */
299 bfd_elf_generic_reloc, /* special_function */
300 "R_C6000_SBR_U15_B", /* name */
301 FALSE, /* partial_inplace */
302 0, /* src_mask */
303 0x007fff00, /* dst_mask */
304 FALSE), /* pcrel_offset */
305 HOWTO (R_C6000_SBR_U15_H, /* type */
306 1, /* rightshift */
307 2, /* size (0 = byte, 1 = short, 2 = long) */
308 15, /* bitsize */
309 FALSE, /* pc_relative */
310 8, /* bitpos */
311 complain_overflow_unsigned,/* complain_on_overflow */
312 bfd_elf_generic_reloc, /* special_function */
313 "R_C6000_SBR_U15_H", /* name */
314 FALSE, /* partial_inplace */
315 0, /* src_mask */
316 0x007fff00, /* dst_mask */
317 FALSE), /* pcrel_offset */
318 HOWTO (R_C6000_SBR_U15_W, /* type */
319 2, /* rightshift */
320 2, /* size (0 = byte, 1 = short, 2 = long) */
321 15, /* bitsize */
322 FALSE, /* pc_relative */
323 8, /* bitpos */
324 complain_overflow_unsigned,/* complain_on_overflow */
325 bfd_elf_generic_reloc, /* special_function */
326 "R_C6000_SBR_U15_W", /* name */
327 FALSE, /* partial_inplace */
328 0, /* src_mask */
329 0x007fff00, /* dst_mask */
330 FALSE), /* pcrel_offset */
331 HOWTO (R_C6000_SBR_S16, /* type */
332 0, /* rightshift */
333 2, /* size (0 = byte, 1 = short, 2 = long) */
334 16, /* bitsize */
335 FALSE, /* pc_relative */
336 7, /* bitpos */
337 complain_overflow_signed,/* complain_on_overflow */
338 bfd_elf_generic_reloc, /* special_function */
339 "R_C6000_SBR_S16", /* name */
340 FALSE, /* partial_inplace */
341 0, /* src_mask */
342 0x007fff80, /* dst_mask */
343 FALSE), /* pcrel_offset */
344 HOWTO (R_C6000_SBR_L16_B, /* type */
345 0, /* rightshift */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
347 16, /* bitsize */
348 FALSE, /* pc_relative */
349 7, /* bitpos */
350 complain_overflow_dont,/* complain_on_overflow */
351 bfd_elf_generic_reloc, /* special_function */
352 "R_C6000_SBR_L16_B", /* name */
353 FALSE, /* partial_inplace */
354 0, /* src_mask */
355 0x007fff80, /* dst_mask */
356 FALSE), /* pcrel_offset */
357 HOWTO (R_C6000_SBR_L16_H, /* type */
358 1, /* rightshift */
359 2, /* size (0 = byte, 1 = short, 2 = long) */
360 16, /* bitsize */
361 FALSE, /* pc_relative */
362 7, /* bitpos */
363 complain_overflow_dont,/* complain_on_overflow */
364 bfd_elf_generic_reloc, /* special_function */
365 "R_C6000_SBR_L16_H", /* name */
366 FALSE, /* partial_inplace */
367 0, /* src_mask */
368 0x007fff80, /* dst_mask */
369 FALSE), /* pcrel_offset */
370 HOWTO (R_C6000_SBR_L16_W, /* type */
371 2, /* rightshift */
372 2, /* size (0 = byte, 1 = short, 2 = long) */
373 16, /* bitsize */
374 FALSE, /* pc_relative */
375 7, /* bitpos */
376 complain_overflow_dont,/* complain_on_overflow */
377 bfd_elf_generic_reloc, /* special_function */
378 "R_C6000_SBR_L16_W", /* name */
379 FALSE, /* partial_inplace */
380 0, /* src_mask */
381 0x007fff80, /* dst_mask */
382 FALSE), /* pcrel_offset */
383 HOWTO (R_C6000_SBR_H16_B, /* type */
384 16, /* rightshift */
385 2, /* size (0 = byte, 1 = short, 2 = long) */
386 16, /* bitsize */
387 FALSE, /* pc_relative */
388 7, /* bitpos */
389 complain_overflow_dont,/* complain_on_overflow */
390 bfd_elf_generic_reloc, /* special_function */
391 "R_C6000_SBR_H16_B", /* name */
392 FALSE, /* partial_inplace */
393 0, /* src_mask */
394 0x007fff80, /* dst_mask */
395 FALSE), /* pcrel_offset */
396 HOWTO (R_C6000_SBR_H16_H, /* type */
397 17, /* rightshift */
398 2, /* size (0 = byte, 1 = short, 2 = long) */
399 16, /* bitsize */
400 FALSE, /* pc_relative */
401 7, /* bitpos */
402 complain_overflow_dont,/* complain_on_overflow */
403 bfd_elf_generic_reloc, /* special_function */
404 "R_C6000_SBR_H16_H", /* name */
405 FALSE, /* partial_inplace */
406 0, /* src_mask */
407 0x007fff80, /* dst_mask */
408 FALSE), /* pcrel_offset */
409 HOWTO (R_C6000_SBR_H16_W, /* type */
410 18, /* rightshift */
411 2, /* size (0 = byte, 1 = short, 2 = long) */
412 16, /* bitsize */
413 FALSE, /* pc_relative */
414 7, /* bitpos */
415 complain_overflow_dont,/* complain_on_overflow */
416 bfd_elf_generic_reloc, /* special_function */
417 "R_C6000_SBR_H16_W", /* name */
418 FALSE, /* partial_inplace */
419 0, /* src_mask */
420 0x007fff80, /* dst_mask */
421 FALSE), /* pcrel_offset */
422 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
423 2, /* rightshift */
424 2, /* size (0 = byte, 1 = short, 2 = long) */
425 15, /* bitsize */
426 FALSE, /* pc_relative */
427 8, /* bitpos */
428 complain_overflow_unsigned,/* complain_on_overflow */
429 bfd_elf_generic_reloc, /* special_function */
430 "R_C6000_SBR_GOT_U15_W",/* name */
431 FALSE, /* partial_inplace */
432 0, /* src_mask */
433 0x007fff00, /* dst_mask */
434 FALSE), /* pcrel_offset */
435 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
436 2, /* rightshift */
437 2, /* size (0 = byte, 1 = short, 2 = long) */
438 16, /* bitsize */
439 FALSE, /* pc_relative */
440 7, /* bitpos */
441 complain_overflow_dont,/* complain_on_overflow */
442 bfd_elf_generic_reloc, /* special_function */
443 "R_C6000_SBR_GOT_L16_W",/* name */
444 FALSE, /* partial_inplace */
445 0, /* src_mask */
446 0x007fff80, /* dst_mask */
447 FALSE), /* pcrel_offset */
448 HOWTO (R_C6000_SBR_GOT_H16_W, /* type */
449 18, /* rightshift */
450 2, /* size (0 = byte, 1 = short, 2 = long) */
451 16, /* bitsize */
452 FALSE, /* pc_relative */
453 7, /* bitpos */
454 complain_overflow_dont,/* complain_on_overflow */
455 bfd_elf_generic_reloc, /* special_function */
456 "R_C6000_SBR_GOT_H16_W",/* name */
457 FALSE, /* partial_inplace */
458 0, /* src_mask */
459 0x007fff80, /* dst_mask */
460 FALSE), /* pcrel_offset */
461 HOWTO (R_C6000_DSBT_INDEX, /* type */
462 0, /* rightshift */
463 2, /* size (0 = byte, 1 = short, 2 = long) */
464 15, /* bitsize */
465 FALSE, /* pc_relative */
466 8, /* bitpos */
467 complain_overflow_unsigned,/* complain_on_overflow */
468 bfd_elf_generic_reloc, /* special_function */
469 "R_C6000_DSBT_INDEX", /* name */
470 FALSE, /* partial_inplace */
471 0, /* src_mask */
472 0x007fff00, /* dst_mask */
473 FALSE), /* pcrel_offset */
474 HOWTO (R_C6000_PREL31, /* type */
475 1, /* rightshift */
476 2, /* size (0 = byte, 1 = short, 2 = long) */
477 31, /* bitsize */
44e87ece 478 TRUE, /* pc_relative */
41820509
JM		 479 0, /* bitpos */
480 complain_overflow_dont,/* complain_on_overflow */
481 bfd_elf_generic_reloc, /* special_function */
482 "R_C6000_PREL31", /* name */
483 FALSE, /* partial_inplace */
484 0, /* src_mask */
485 0x7fffffff, /* dst_mask */
44e87ece 486 TRUE), /* pcrel_offset */
41820509
JM		 487 HOWTO (R_C6000_COPY, /* type */
488 0, /* rightshift */
489 2, /* size (0 = byte, 1 = short, 2 = long) */
490 32, /* bitsize */
491 FALSE, /* pc_relative */
492 0, /* bitpos */
493 complain_overflow_dont,/* complain_on_overflow */
494 bfd_elf_generic_reloc, /* special_function */
495 "R_C6000_COPY", /* name */
496 FALSE, /* partial_inplace */
497 0, /* src_mask */
498 0xffffffff, /* dst_mask */
499 FALSE), /* pcrel_offset */
ac145307
BS		 500 HOWTO (R_C6000_JUMP_SLOT, /* type */
501 0, /* rightshift */
502 2, /* size (0 = byte, 1 = short, 2 = long) */
503 32, /* bitsize */
504 FALSE, /* pc_relative */
505 0, /* bitpos */
506 complain_overflow_dont,/* complain_on_overflow */
507 bfd_elf_generic_reloc, /* special_function */
508 "R_C6000_JUMP_SLOT", /* name */
509 FALSE, /* partial_inplace */
510 0, /* src_mask */
511 0xffffffff, /* dst_mask */
512 FALSE), /* pcrel_offset */
2fbb87f6
PB		 513 HOWTO (R_C6000_EHTYPE, /* type */
514 0, /* rightshift */
515 2, /* size (0 = byte, 1 = short, 2 = long) */
516 32, /* bitsize */
517 FALSE, /* pc_relative */
518 0, /* bitpos */
519 complain_overflow_dont,/* complain_on_overflow */
520 bfd_elf_generic_reloc, /* special_function */
521 "R_C6000_EHTYPE", /* name */
522 FALSE, /* partial_inplace */
523 0, /* src_mask */
524 0xffffffff, /* dst_mask */
525 FALSE), /* pcrel_offset */
4a732032
BS		 526 HOWTO (R_C6000_PCR_H16, /* type */
527 16, /* rightshift */
528 2, /* size (0 = byte, 1 = short, 2 = long) */
529 16, /* bitsize */
530 TRUE, /* pc_relative */
531 7, /* bitpos */
532 complain_overflow_dont,/* complain_on_overflow */
533 bfd_elf_generic_reloc, /* special_function */
534 "R_C6000_PCR_H16", /* name */
535 FALSE, /* partial_inplace */
536 0, /* src_mask */
537 0x007fff80, /* dst_mask */
538 TRUE), /* pcrel_offset */
539 HOWTO (R_C6000_PCR_L16, /* type */
540 0, /* rightshift */
541 2, /* size (0 = byte, 1 = short, 2 = long) */
542 16, /* bitsize */
543 TRUE, /* pc_relative */
544 7, /* bitpos */
545 complain_overflow_dont,/* complain_on_overflow */
546 bfd_elf_generic_reloc, /* special_function */
547 "R_C6000_PCR_L16", /* name */
548 FALSE, /* partial_inplace */
549 0, /* src_mask */
550 0x007fff80, /* dst_mask */
551 TRUE), /* pcrel_offset */
41820509
JM		 552 EMPTY_HOWTO (31),
553 EMPTY_HOWTO (32),
554 EMPTY_HOWTO (33),
555 EMPTY_HOWTO (34),
556 EMPTY_HOWTO (35),
557 EMPTY_HOWTO (36),
558 EMPTY_HOWTO (37),
559 EMPTY_HOWTO (38),
560 EMPTY_HOWTO (39),
561 EMPTY_HOWTO (40),
562 EMPTY_HOWTO (41),
563 EMPTY_HOWTO (42),
564 EMPTY_HOWTO (43),
565 EMPTY_HOWTO (44),
566 EMPTY_HOWTO (45),
567 EMPTY_HOWTO (46),
568 EMPTY_HOWTO (47),
569 EMPTY_HOWTO (48),
570 EMPTY_HOWTO (49),
571 EMPTY_HOWTO (50),
572 EMPTY_HOWTO (51),
573 EMPTY_HOWTO (52),
574 EMPTY_HOWTO (53),
575 EMPTY_HOWTO (54),
576 EMPTY_HOWTO (55),
577 EMPTY_HOWTO (56),
578 EMPTY_HOWTO (57),
579 EMPTY_HOWTO (58),
580 EMPTY_HOWTO (59),
581 EMPTY_HOWTO (60),
582 EMPTY_HOWTO (61),
583 EMPTY_HOWTO (62),
584 EMPTY_HOWTO (63),
585 EMPTY_HOWTO (64),
586 EMPTY_HOWTO (65),
587 EMPTY_HOWTO (66),
588 EMPTY_HOWTO (67),
589 EMPTY_HOWTO (68),
590 EMPTY_HOWTO (69),
591 EMPTY_HOWTO (70),
592 EMPTY_HOWTO (71),
593 EMPTY_HOWTO (72),
594 EMPTY_HOWTO (73),
595 EMPTY_HOWTO (74),
596 EMPTY_HOWTO (75),
597 EMPTY_HOWTO (76),
598 EMPTY_HOWTO (77),
599 EMPTY_HOWTO (78),
600 EMPTY_HOWTO (79),
601 EMPTY_HOWTO (80),
602 EMPTY_HOWTO (81),
603 EMPTY_HOWTO (82),
604 EMPTY_HOWTO (83),
605 EMPTY_HOWTO (84),
606 EMPTY_HOWTO (85),
607 EMPTY_HOWTO (86),
608 EMPTY_HOWTO (87),
609 EMPTY_HOWTO (88),
610 EMPTY_HOWTO (89),
611 EMPTY_HOWTO (90),
612 EMPTY_HOWTO (91),
613 EMPTY_HOWTO (92),
614 EMPTY_HOWTO (93),
615 EMPTY_HOWTO (94),
616 EMPTY_HOWTO (95),
617 EMPTY_HOWTO (96),
618 EMPTY_HOWTO (97),
619 EMPTY_HOWTO (98),
620 EMPTY_HOWTO (99),
621 EMPTY_HOWTO (100),
622 EMPTY_HOWTO (101),
623 EMPTY_HOWTO (102),
624 EMPTY_HOWTO (103),
625 EMPTY_HOWTO (104),
626 EMPTY_HOWTO (105),
627 EMPTY_HOWTO (106),
628 EMPTY_HOWTO (107),
629 EMPTY_HOWTO (108),
630 EMPTY_HOWTO (109),
631 EMPTY_HOWTO (110),
632 EMPTY_HOWTO (111),
633 EMPTY_HOWTO (112),
634 EMPTY_HOWTO (113),
635 EMPTY_HOWTO (114),
636 EMPTY_HOWTO (115),
637 EMPTY_HOWTO (116),
638 EMPTY_HOWTO (117),
639 EMPTY_HOWTO (118),
640 EMPTY_HOWTO (119),
641 EMPTY_HOWTO (120),
642 EMPTY_HOWTO (121),
643 EMPTY_HOWTO (122),
644 EMPTY_HOWTO (123),
645 EMPTY_HOWTO (124),
646 EMPTY_HOWTO (125),
647 EMPTY_HOWTO (126),
648 EMPTY_HOWTO (127),
649 EMPTY_HOWTO (128),
650 EMPTY_HOWTO (129),
651 EMPTY_HOWTO (130),
652 EMPTY_HOWTO (131),
653 EMPTY_HOWTO (132),
654 EMPTY_HOWTO (133),
655 EMPTY_HOWTO (134),
656 EMPTY_HOWTO (135),
657 EMPTY_HOWTO (136),
658 EMPTY_HOWTO (137),
659 EMPTY_HOWTO (138),
660 EMPTY_HOWTO (139),
661 EMPTY_HOWTO (140),
662 EMPTY_HOWTO (141),
663 EMPTY_HOWTO (142),
664 EMPTY_HOWTO (143),
665 EMPTY_HOWTO (144),
666 EMPTY_HOWTO (145),
667 EMPTY_HOWTO (146),
668 EMPTY_HOWTO (147),
669 EMPTY_HOWTO (148),
670 EMPTY_HOWTO (149),
671 EMPTY_HOWTO (150),
672 EMPTY_HOWTO (151),
673 EMPTY_HOWTO (152),
674 EMPTY_HOWTO (153),
675 EMPTY_HOWTO (154),
676 EMPTY_HOWTO (155),
677 EMPTY_HOWTO (156),
678 EMPTY_HOWTO (157),
679 EMPTY_HOWTO (158),
680 EMPTY_HOWTO (159),
681 EMPTY_HOWTO (160),
682 EMPTY_HOWTO (161),
683 EMPTY_HOWTO (162),
684 EMPTY_HOWTO (163),
685 EMPTY_HOWTO (164),
686 EMPTY_HOWTO (165),
687 EMPTY_HOWTO (166),
688 EMPTY_HOWTO (167),
689 EMPTY_HOWTO (168),
690 EMPTY_HOWTO (169),
691 EMPTY_HOWTO (170),
692 EMPTY_HOWTO (171),
693 EMPTY_HOWTO (172),
694 EMPTY_HOWTO (173),
695 EMPTY_HOWTO (174),
696 EMPTY_HOWTO (175),
697 EMPTY_HOWTO (176),
698 EMPTY_HOWTO (177),
699 EMPTY_HOWTO (178),
700 EMPTY_HOWTO (179),
701 EMPTY_HOWTO (180),
702 EMPTY_HOWTO (181),
703 EMPTY_HOWTO (182),
704 EMPTY_HOWTO (183),
705 EMPTY_HOWTO (184),
706 EMPTY_HOWTO (185),
707 EMPTY_HOWTO (186),
708 EMPTY_HOWTO (187),
709 EMPTY_HOWTO (188),
710 EMPTY_HOWTO (189),
711 EMPTY_HOWTO (190),
712 EMPTY_HOWTO (191),
713 EMPTY_HOWTO (192),
714 EMPTY_HOWTO (193),
715 EMPTY_HOWTO (194),
716 EMPTY_HOWTO (195),
717 EMPTY_HOWTO (196),
718 EMPTY_HOWTO (197),
719 EMPTY_HOWTO (198),
720 EMPTY_HOWTO (199),
721 EMPTY_HOWTO (200),
722 EMPTY_HOWTO (201),
723 EMPTY_HOWTO (202),
724 EMPTY_HOWTO (203),
725 EMPTY_HOWTO (204),
726 EMPTY_HOWTO (205),
727 EMPTY_HOWTO (206),
728 EMPTY_HOWTO (207),
729 EMPTY_HOWTO (208),
730 EMPTY_HOWTO (209),
731 EMPTY_HOWTO (210),
732 EMPTY_HOWTO (211),
733 EMPTY_HOWTO (212),
734 EMPTY_HOWTO (213),
735 EMPTY_HOWTO (214),
736 EMPTY_HOWTO (215),
737 EMPTY_HOWTO (216),
738 EMPTY_HOWTO (217),
739 EMPTY_HOWTO (218),
740 EMPTY_HOWTO (219),
741 EMPTY_HOWTO (220),
742 EMPTY_HOWTO (221),
743 EMPTY_HOWTO (222),
744 EMPTY_HOWTO (223),
745 EMPTY_HOWTO (224),
746 EMPTY_HOWTO (225),
747 EMPTY_HOWTO (226),
748 EMPTY_HOWTO (227),
749 EMPTY_HOWTO (228),
750 EMPTY_HOWTO (229),
751 EMPTY_HOWTO (230),
752 EMPTY_HOWTO (231),
753 EMPTY_HOWTO (232),
754 EMPTY_HOWTO (233),
755 EMPTY_HOWTO (234),
756 EMPTY_HOWTO (235),
757 EMPTY_HOWTO (236),
758 EMPTY_HOWTO (237),
759 EMPTY_HOWTO (238),
760 EMPTY_HOWTO (239),
761 EMPTY_HOWTO (240),
762 EMPTY_HOWTO (241),
763 EMPTY_HOWTO (242),
764 EMPTY_HOWTO (243),
765 EMPTY_HOWTO (244),
766 EMPTY_HOWTO (245),
767 EMPTY_HOWTO (246),
768 EMPTY_HOWTO (247),
769 EMPTY_HOWTO (248),
770 EMPTY_HOWTO (249),
771 EMPTY_HOWTO (250),
772 EMPTY_HOWTO (251),
773 EMPTY_HOWTO (252),
774 HOWTO (R_C6000_ALIGN, /* type */
775 0, /* rightshift */
776 0, /* size (0 = byte, 1 = short, 2 = long) */
777 0, /* bitsize */
778 FALSE, /* pc_relative */
779 0, /* bitpos */
780 complain_overflow_dont,/* complain_on_overflow */
781 bfd_elf_generic_reloc, /* special_function */
782 "R_C6000_ALIGN", /* name */
783 FALSE, /* partial_inplace */
784 0, /* src_mask */
785 0, /* dst_mask */
786 FALSE), /* pcrel_offset */
787 HOWTO (R_C6000_FPHEAD, /* type */
788 0, /* rightshift */
789 0, /* size (0 = byte, 1 = short, 2 = long) */
790 0, /* bitsize */
791 FALSE, /* pc_relative */
792 0, /* bitpos */
793 complain_overflow_dont,/* complain_on_overflow */
794 bfd_elf_generic_reloc, /* special_function */
795 "R_C6000_FPHEAD", /* name */
796 FALSE, /* partial_inplace */
797 0, /* src_mask */
798 0, /* dst_mask */
799 FALSE), /* pcrel_offset */
800 HOWTO (R_C6000_NOCMP, /* type */
801 0, /* rightshift */
802 0, /* size (0 = byte, 1 = short, 2 = long) */
803 0, /* bitsize */
804 FALSE, /* pc_relative */
805 0, /* bitpos */
806 complain_overflow_dont,/* complain_on_overflow */
807 bfd_elf_generic_reloc, /* special_function */
808 "R_C6000_NOCMP", /* name */
809 FALSE, /* partial_inplace */
810 0, /* src_mask */
811 0, /* dst_mask */
812 FALSE) /* pcrel_offset */
813};
814
815static reloc_howto_type elf32_tic6x_howto_table_rel[] =
816{
817 HOWTO (R_C6000_NONE, /* type */
818 0, /* rightshift */
6346d5ca 819 3, /* size (0 = byte, 1 = short, 2 = long) */
41820509
JM		 820 0, /* bitsize */
821 FALSE, /* pc_relative */
822 0, /* bitpos */
823 complain_overflow_dont,/* complain_on_overflow */
824 bfd_elf_generic_reloc, /* special_function */
825 "R_C6000_NONE", /* name */
826 TRUE, /* partial_inplace */
40b36596
JM		 827 0, /* src_mask */
828 0, /* dst_mask */
829 FALSE), /* pcrel_offset */
830 HOWTO (R_C6000_ABS32, /* type */
831 0, /* rightshift */
832 2, /* size (0 = byte, 1 = short, 2 = long) */
833 32, /* bitsize */
834 FALSE, /* pc_relative */
835 0, /* bitpos */
836 complain_overflow_dont,/* complain_on_overflow */
837 bfd_elf_generic_reloc, /* special_function */
838 "R_C6000_ABS32", /* name */
41820509
JM		 839 TRUE, /* partial_inplace */
840 0xffffffff, /* src_mask */
40b36596
JM		 841 0xffffffff, /* dst_mask */
842 FALSE), /* pcrel_offset */
843 HOWTO (R_C6000_ABS16, /* type */
844 0, /* rightshift */
845 1, /* size (0 = byte, 1 = short, 2 = long) */
846 16, /* bitsize */
847 FALSE, /* pc_relative */
848 0, /* bitpos */
849 complain_overflow_bitfield,/* complain_on_overflow */
850 bfd_elf_generic_reloc, /* special_function */
851 "R_C6000_ABS16", /* name */
41820509
JM		 852 TRUE, /* partial_inplace */
853 0x0000ffff, /* src_mask */
40b36596
JM		 854 0x0000ffff, /* dst_mask */
855 FALSE), /* pcrel_offset */
856 HOWTO (R_C6000_ABS8, /* type */
857 0, /* rightshift */
858 0, /* size (0 = byte, 1 = short, 2 = long) */
859 8, /* bitsize */
860 FALSE, /* pc_relative */
861 0, /* bitpos */
862 complain_overflow_bitfield,/* complain_on_overflow */
863 bfd_elf_generic_reloc, /* special_function */
864 "R_C6000_ABS8", /* name */
41820509
JM		 865 TRUE, /* partial_inplace */
866 0x000000ff, /* src_mask */
40b36596
JM		 867 0x000000ff, /* dst_mask */
868 FALSE), /* pcrel_offset */
869 HOWTO (R_C6000_PCR_S21, /* type */
870 2, /* rightshift */
871 2, /* size (0 = byte, 1 = short, 2 = long) */
872 21, /* bitsize */
873 TRUE, /* pc_relative */
874 7, /* bitpos */
875 complain_overflow_signed,/* complain_on_overflow */
876 bfd_elf_generic_reloc, /* special_function */
877 "R_C6000_PCR_S21", /* name */
41820509
JM		 878 TRUE, /* partial_inplace */
879 0x0fffff80, /* src_mask */
40b36596
JM		 880 0x0fffff80, /* dst_mask */
881 TRUE), /* pcrel_offset */
882 HOWTO (R_C6000_PCR_S12, /* type */
883 2, /* rightshift */
884 2, /* size (0 = byte, 1 = short, 2 = long) */
885 12, /* bitsize */
886 TRUE, /* pc_relative */
887 16, /* bitpos */
888 complain_overflow_signed,/* complain_on_overflow */
889 bfd_elf_generic_reloc, /* special_function */
890 "R_C6000_PCR_S12", /* name */
41820509
JM		 891 TRUE, /* partial_inplace */
892 0x0fff0000, /* src_mask */
40b36596
JM		 893 0x0fff0000, /* dst_mask */
894 TRUE), /* pcrel_offset */
895 HOWTO (R_C6000_PCR_S10, /* type */
896 2, /* rightshift */
897 2, /* size (0 = byte, 1 = short, 2 = long) */
898 10, /* bitsize */
899 TRUE, /* pc_relative */
900 13, /* bitpos */
901 complain_overflow_signed,/* complain_on_overflow */
902 bfd_elf_generic_reloc, /* special_function */
903 "R_C6000_PCR_S10", /* name */
41820509
JM		 904 TRUE, /* partial_inplace */
905 0x007fe000, /* src_mask */
40b36596
JM		 906 0x007fe000, /* dst_mask */
907 TRUE), /* pcrel_offset */
908 HOWTO (R_C6000_PCR_S7, /* type */
909 2, /* rightshift */
910 2, /* size (0 = byte, 1 = short, 2 = long) */
911 7, /* bitsize */
912 TRUE, /* pc_relative */
913 16, /* bitpos */
914 complain_overflow_signed,/* complain_on_overflow */
915 bfd_elf_generic_reloc, /* special_function */
916 "R_C6000_PCR_S7", /* name */
41820509
JM		 917 TRUE, /* partial_inplace */
918 0x007f0000, /* src_mask */
40b36596
JM		 919 0x007f0000, /* dst_mask */
920 TRUE), /* pcrel_offset */
921 HOWTO (R_C6000_ABS_S16, /* type */
922 0, /* rightshift */
923 2, /* size (0 = byte, 1 = short, 2 = long) */
924 16, /* bitsize */
925 FALSE, /* pc_relative */
926 7, /* bitpos */
927 complain_overflow_signed,/* complain_on_overflow */
928 bfd_elf_generic_reloc, /* special_function */
929 "R_C6000_ABS_S16", /* name */
41820509
JM		 930 TRUE, /* partial_inplace */
931 0x007fff80, /* src_mask */
40b36596
JM		 932 0x007fff80, /* dst_mask */
933 FALSE), /* pcrel_offset */
934 HOWTO (R_C6000_ABS_L16, /* type */
935 0, /* rightshift */
936 2, /* size (0 = byte, 1 = short, 2 = long) */
937 16, /* bitsize */
938 FALSE, /* pc_relative */
939 7, /* bitpos */
940 complain_overflow_dont,/* complain_on_overflow */
941 bfd_elf_generic_reloc, /* special_function */
942 "R_C6000_ABS_L16", /* name */
41820509
JM		 943 TRUE, /* partial_inplace */
944 0x007fff80, /* src_mask */
40b36596
JM		 945 0x007fff80, /* dst_mask */
946 FALSE), /* pcrel_offset */
41820509 947 EMPTY_HOWTO (R_C6000_ABS_H16),
40b36596
JM		 948 HOWTO (R_C6000_SBR_U15_B, /* type */
949 0, /* rightshift */
950 2, /* size (0 = byte, 1 = short, 2 = long) */
951 15, /* bitsize */
952 FALSE, /* pc_relative */
953 8, /* bitpos */
954 complain_overflow_unsigned,/* complain_on_overflow */
955 bfd_elf_generic_reloc, /* special_function */
956 "R_C6000_SBR_U15_B", /* name */
41820509
JM		 957 TRUE, /* partial_inplace */
958 0x007fff00, /* src_mask */
40b36596
JM		 959 0x007fff00, /* dst_mask */
960 FALSE), /* pcrel_offset */
961 HOWTO (R_C6000_SBR_U15_H, /* type */
962 1, /* rightshift */
963 2, /* size (0 = byte, 1 = short, 2 = long) */
964 15, /* bitsize */
965 FALSE, /* pc_relative */
966 8, /* bitpos */
967 complain_overflow_unsigned,/* complain_on_overflow */
968 bfd_elf_generic_reloc, /* special_function */
969 "R_C6000_SBR_U15_H", /* name */
41820509
JM		 970 TRUE, /* partial_inplace */
971 0x007fff00, /* src_mask */
40b36596
JM		 972 0x007fff00, /* dst_mask */
973 FALSE), /* pcrel_offset */
974 HOWTO (R_C6000_SBR_U15_W, /* type */
975 2, /* rightshift */
976 2, /* size (0 = byte, 1 = short, 2 = long) */
977 15, /* bitsize */
978 FALSE, /* pc_relative */
979 8, /* bitpos */
980 complain_overflow_unsigned,/* complain_on_overflow */
981 bfd_elf_generic_reloc, /* special_function */
982 "R_C6000_SBR_U15_W", /* name */
41820509
JM		 983 TRUE, /* partial_inplace */
984 0x007fff00, /* src_mask */
40b36596
JM		 985 0x007fff00, /* dst_mask */
986 FALSE), /* pcrel_offset */
987 HOWTO (R_C6000_SBR_S16, /* type */
988 0, /* rightshift */
989 2, /* size (0 = byte, 1 = short, 2 = long) */
990 16, /* bitsize */
991 FALSE, /* pc_relative */
992 7, /* bitpos */
993 complain_overflow_signed,/* complain_on_overflow */
994 bfd_elf_generic_reloc, /* special_function */
995 "R_C6000_SBR_S16", /* name */
41820509
JM		 996 TRUE, /* partial_inplace */
997 0x007fff80, /* src_mask */
40b36596
JM		 998 0x007fff80, /* dst_mask */
999 FALSE), /* pcrel_offset */
1000 HOWTO (R_C6000_SBR_L16_B, /* type */
1001 0, /* rightshift */
1002 2, /* size (0 = byte, 1 = short, 2 = long) */
1003 16, /* bitsize */
1004 FALSE, /* pc_relative */
1005 7, /* bitpos */
1006 complain_overflow_dont,/* complain_on_overflow */
1007 bfd_elf_generic_reloc, /* special_function */
1008 "R_C6000_SBR_L16_B", /* name */
41820509
JM		 1009 TRUE, /* partial_inplace */
1010 0x007fff80, /* src_mask */
40b36596
JM		 1011 0x007fff80, /* dst_mask */
1012 FALSE), /* pcrel_offset */
1013 HOWTO (R_C6000_SBR_L16_H, /* type */
1014 1, /* rightshift */
1015 2, /* size (0 = byte, 1 = short, 2 = long) */
1016 16, /* bitsize */
1017 FALSE, /* pc_relative */
1018 7, /* bitpos */
1019 complain_overflow_dont,/* complain_on_overflow */
1020 bfd_elf_generic_reloc, /* special_function */
1021 "R_C6000_SBR_L16_H", /* name */
41820509
JM		 1022 TRUE, /* partial_inplace */
1023 0x007fff80, /* src_mask */
40b36596
JM		 1024 0x007fff80, /* dst_mask */
1025 FALSE), /* pcrel_offset */
1026 HOWTO (R_C6000_SBR_L16_W, /* type */
1027 2, /* rightshift */
1028 2, /* size (0 = byte, 1 = short, 2 = long) */
1029 16, /* bitsize */
1030 FALSE, /* pc_relative */
1031 7, /* bitpos */
1032 complain_overflow_dont,/* complain_on_overflow */
1033 bfd_elf_generic_reloc, /* special_function */
1034 "R_C6000_SBR_L16_W", /* name */
41820509
JM		 1035 TRUE, /* partial_inplace */
1036 0x007fff80, /* src_mask */
40b36596
JM		 1037 0x007fff80, /* dst_mask */
1038 FALSE), /* pcrel_offset */
41820509
JM		 1039 EMPTY_HOWTO (R_C6000_SBR_H16_B),
1040 EMPTY_HOWTO (R_C6000_SBR_H16_H),
1041 EMPTY_HOWTO (R_C6000_SBR_H16_W),
40b36596
JM		 1042 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
1043 2, /* rightshift */
1044 2, /* size (0 = byte, 1 = short, 2 = long) */
1045 15, /* bitsize */
1046 FALSE, /* pc_relative */
1047 8, /* bitpos */
1048 complain_overflow_unsigned,/* complain_on_overflow */
1049 bfd_elf_generic_reloc, /* special_function */
1050 "R_C6000_SBR_GOT_U15_W",/* name */
41820509
JM		 1051 TRUE, /* partial_inplace */
1052 0x007fff00, /* src_mask */
40b36596
JM		 1053 0x007fff00, /* dst_mask */
1054 FALSE), /* pcrel_offset */
1055 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
1056 2, /* rightshift */
1057 2, /* size (0 = byte, 1 = short, 2 = long) */
1058 16, /* bitsize */
1059 FALSE, /* pc_relative */
1060 7, /* bitpos */
1061 complain_overflow_dont,/* complain_on_overflow */
1062 bfd_elf_generic_reloc, /* special_function */
1063 "R_C6000_SBR_GOT_L16_W",/* name */
41820509
JM		 1064 TRUE, /* partial_inplace */
1065 0x007fff80, /* src_mask */
40b36596
JM		 1066 0x007fff80, /* dst_mask */
1067 FALSE), /* pcrel_offset */
41820509 1068 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W),
40b36596
JM		 1069 HOWTO (R_C6000_DSBT_INDEX, /* type */
1070 0, /* rightshift */
1071 2, /* size (0 = byte, 1 = short, 2 = long) */
1072 15, /* bitsize */
1073 FALSE, /* pc_relative */
1074 8, /* bitpos */
1075 complain_overflow_unsigned,/* complain_on_overflow */
1076 bfd_elf_generic_reloc, /* special_function */
1077 "R_C6000_DSBT_INDEX", /* name */
41820509 1078 TRUE, /* partial_inplace */
40b36596
JM		 1079 0, /* src_mask */
1080 0x007fff00, /* dst_mask */
1081 FALSE), /* pcrel_offset */
1082 HOWTO (R_C6000_PREL31, /* type */
1083 1, /* rightshift */
1084 2, /* size (0 = byte, 1 = short, 2 = long) */
1085 31, /* bitsize */
44e87ece 1086 TRUE, /* pc_relative */
40b36596
JM		 1087 0, /* bitpos */
1088 complain_overflow_dont,/* complain_on_overflow */
1089 bfd_elf_generic_reloc, /* special_function */
1090 "R_C6000_PREL31", /* name */
41820509 1091 TRUE, /* partial_inplace */
40b36596
JM		 1092 0, /* src_mask */
1093 0x7fffffff, /* dst_mask */
44e87ece 1094 TRUE), /* pcrel_offset */
40b36596
JM		 1095 HOWTO (R_C6000_COPY, /* type */
1096 0, /* rightshift */
1097 2, /* size (0 = byte, 1 = short, 2 = long) */
1098 32, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont,/* complain_on_overflow */
1102 bfd_elf_generic_reloc, /* special_function */
1103 "R_C6000_COPY", /* name */
41820509 1104 TRUE, /* partial_inplace */
40b36596
JM		 1105 0, /* src_mask */
1106 0xffffffff, /* dst_mask */
1107 FALSE), /* pcrel_offset */
ac145307
BS		 1108 HOWTO (R_C6000_JUMP_SLOT, /* type */
1109 0, /* rightshift */
1110 2, /* size (0 = byte, 1 = short, 2 = long) */
1111 32, /* bitsize */
1112 FALSE, /* pc_relative */
1113 0, /* bitpos */
1114 complain_overflow_dont,/* complain_on_overflow */
1115 bfd_elf_generic_reloc, /* special_function */
1116 "R_C6000_JUMP_SLOT", /* name */
1117 FALSE, /* partial_inplace */
1118 0, /* src_mask */
1119 0xffffffff, /* dst_mask */
1120 FALSE), /* pcrel_offset */
2fbb87f6
PB		 1121 HOWTO (R_C6000_EHTYPE, /* type */
1122 0, /* rightshift */
1123 2, /* size (0 = byte, 1 = short, 2 = long) */
1124 32, /* bitsize */
1125 FALSE, /* pc_relative */
1126 0, /* bitpos */
1127 complain_overflow_dont,/* complain_on_overflow */
1128 bfd_elf_generic_reloc, /* special_function */
1129 "R_C6000_EHTYPE", /* name */
1130 FALSE, /* partial_inplace */
1131 0, /* src_mask */
1132 0xffffffff, /* dst_mask */
1133 FALSE), /* pcrel_offset */
4a732032
BS		 1134 EMPTY_HOWTO (R_C6000_PCR_H16),
1135 EMPTY_HOWTO (R_C6000_PCR_L16),
40b36596
JM		 1136 EMPTY_HOWTO (31),
1137 EMPTY_HOWTO (32),
1138 EMPTY_HOWTO (33),
1139 EMPTY_HOWTO (34),
1140 EMPTY_HOWTO (35),
1141 EMPTY_HOWTO (36),
1142 EMPTY_HOWTO (37),
1143 EMPTY_HOWTO (38),
1144 EMPTY_HOWTO (39),
1145 EMPTY_HOWTO (40),
1146 EMPTY_HOWTO (41),
1147 EMPTY_HOWTO (42),
1148 EMPTY_HOWTO (43),
1149 EMPTY_HOWTO (44),
1150 EMPTY_HOWTO (45),
1151 EMPTY_HOWTO (46),
1152 EMPTY_HOWTO (47),
1153 EMPTY_HOWTO (48),
1154 EMPTY_HOWTO (49),
1155 EMPTY_HOWTO (50),
1156 EMPTY_HOWTO (51),
1157 EMPTY_HOWTO (52),
1158 EMPTY_HOWTO (53),
1159 EMPTY_HOWTO (54),
1160 EMPTY_HOWTO (55),
1161 EMPTY_HOWTO (56),
1162 EMPTY_HOWTO (57),
1163 EMPTY_HOWTO (58),
1164 EMPTY_HOWTO (59),
1165 EMPTY_HOWTO (60),
1166 EMPTY_HOWTO (61),
1167 EMPTY_HOWTO (62),
1168 EMPTY_HOWTO (63),
1169 EMPTY_HOWTO (64),
1170 EMPTY_HOWTO (65),
1171 EMPTY_HOWTO (66),
1172 EMPTY_HOWTO (67),
1173 EMPTY_HOWTO (68),
1174 EMPTY_HOWTO (69),
1175 EMPTY_HOWTO (70),
1176 EMPTY_HOWTO (71),
1177 EMPTY_HOWTO (72),
1178 EMPTY_HOWTO (73),
1179 EMPTY_HOWTO (74),
1180 EMPTY_HOWTO (75),
1181 EMPTY_HOWTO (76),
1182 EMPTY_HOWTO (77),
1183 EMPTY_HOWTO (78),
1184 EMPTY_HOWTO (79),
1185 EMPTY_HOWTO (80),
1186 EMPTY_HOWTO (81),
1187 EMPTY_HOWTO (82),
1188 EMPTY_HOWTO (83),
1189 EMPTY_HOWTO (84),
1190 EMPTY_HOWTO (85),
1191 EMPTY_HOWTO (86),
1192 EMPTY_HOWTO (87),
1193 EMPTY_HOWTO (88),
1194 EMPTY_HOWTO (89),
1195 EMPTY_HOWTO (90),
1196 EMPTY_HOWTO (91),
1197 EMPTY_HOWTO (92),
1198 EMPTY_HOWTO (93),
1199 EMPTY_HOWTO (94),
1200 EMPTY_HOWTO (95),
1201 EMPTY_HOWTO (96),
1202 EMPTY_HOWTO (97),
1203 EMPTY_HOWTO (98),
1204 EMPTY_HOWTO (99),
1205 EMPTY_HOWTO (100),
1206 EMPTY_HOWTO (101),
1207 EMPTY_HOWTO (102),
1208 EMPTY_HOWTO (103),
1209 EMPTY_HOWTO (104),
1210 EMPTY_HOWTO (105),
1211 EMPTY_HOWTO (106),
1212 EMPTY_HOWTO (107),
1213 EMPTY_HOWTO (108),
1214 EMPTY_HOWTO (109),
1215 EMPTY_HOWTO (110),
1216 EMPTY_HOWTO (111),
1217 EMPTY_HOWTO (112),
1218 EMPTY_HOWTO (113),
1219 EMPTY_HOWTO (114),
1220 EMPTY_HOWTO (115),
1221 EMPTY_HOWTO (116),
1222 EMPTY_HOWTO (117),
1223 EMPTY_HOWTO (118),
1224 EMPTY_HOWTO (119),
1225 EMPTY_HOWTO (120),
1226 EMPTY_HOWTO (121),
1227 EMPTY_HOWTO (122),
1228 EMPTY_HOWTO (123),
1229 EMPTY_HOWTO (124),
1230 EMPTY_HOWTO (125),
1231 EMPTY_HOWTO (126),
1232 EMPTY_HOWTO (127),
1233 EMPTY_HOWTO (128),
1234 EMPTY_HOWTO (129),
1235 EMPTY_HOWTO (130),
1236 EMPTY_HOWTO (131),
1237 EMPTY_HOWTO (132),
1238 EMPTY_HOWTO (133),
1239 EMPTY_HOWTO (134),
1240 EMPTY_HOWTO (135),
1241 EMPTY_HOWTO (136),
1242 EMPTY_HOWTO (137),
1243 EMPTY_HOWTO (138),
1244 EMPTY_HOWTO (139),
1245 EMPTY_HOWTO (140),
1246 EMPTY_HOWTO (141),
1247 EMPTY_HOWTO (142),
1248 EMPTY_HOWTO (143),
1249 EMPTY_HOWTO (144),
1250 EMPTY_HOWTO (145),
1251 EMPTY_HOWTO (146),
1252 EMPTY_HOWTO (147),
1253 EMPTY_HOWTO (148),
1254 EMPTY_HOWTO (149),
1255 EMPTY_HOWTO (150),
1256 EMPTY_HOWTO (151),
1257 EMPTY_HOWTO (152),
1258 EMPTY_HOWTO (153),
1259 EMPTY_HOWTO (154),
1260 EMPTY_HOWTO (155),
1261 EMPTY_HOWTO (156),
1262 EMPTY_HOWTO (157),
1263 EMPTY_HOWTO (158),
1264 EMPTY_HOWTO (159),
1265 EMPTY_HOWTO (160),
1266 EMPTY_HOWTO (161),
1267 EMPTY_HOWTO (162),
1268 EMPTY_HOWTO (163),
1269 EMPTY_HOWTO (164),
1270 EMPTY_HOWTO (165),
1271 EMPTY_HOWTO (166),
1272 EMPTY_HOWTO (167),
1273 EMPTY_HOWTO (168),
1274 EMPTY_HOWTO (169),
1275 EMPTY_HOWTO (170),
1276 EMPTY_HOWTO (171),
1277 EMPTY_HOWTO (172),
1278 EMPTY_HOWTO (173),
1279 EMPTY_HOWTO (174),
1280 EMPTY_HOWTO (175),
1281 EMPTY_HOWTO (176),
1282 EMPTY_HOWTO (177),
1283 EMPTY_HOWTO (178),
1284 EMPTY_HOWTO (179),
1285 EMPTY_HOWTO (180),
1286 EMPTY_HOWTO (181),
1287 EMPTY_HOWTO (182),
1288 EMPTY_HOWTO (183),
1289 EMPTY_HOWTO (184),
1290 EMPTY_HOWTO (185),
1291 EMPTY_HOWTO (186),
1292 EMPTY_HOWTO (187),
1293 EMPTY_HOWTO (188),
1294 EMPTY_HOWTO (189),
1295 EMPTY_HOWTO (190),
1296 EMPTY_HOWTO (191),
1297 EMPTY_HOWTO (192),
1298 EMPTY_HOWTO (193),
1299 EMPTY_HOWTO (194),
1300 EMPTY_HOWTO (195),
1301 EMPTY_HOWTO (196),
1302 EMPTY_HOWTO (197),
1303 EMPTY_HOWTO (198),
1304 EMPTY_HOWTO (199),
1305 EMPTY_HOWTO (200),
1306 EMPTY_HOWTO (201),
1307 EMPTY_HOWTO (202),
1308 EMPTY_HOWTO (203),
1309 EMPTY_HOWTO (204),
1310 EMPTY_HOWTO (205),
1311 EMPTY_HOWTO (206),
1312 EMPTY_HOWTO (207),
1313 EMPTY_HOWTO (208),
1314 EMPTY_HOWTO (209),
1315 EMPTY_HOWTO (210),
1316 EMPTY_HOWTO (211),
1317 EMPTY_HOWTO (212),
1318 EMPTY_HOWTO (213),
1319 EMPTY_HOWTO (214),
1320 EMPTY_HOWTO (215),
1321 EMPTY_HOWTO (216),
1322 EMPTY_HOWTO (217),
1323 EMPTY_HOWTO (218),
1324 EMPTY_HOWTO (219),
1325 EMPTY_HOWTO (220),
1326 EMPTY_HOWTO (221),
1327 EMPTY_HOWTO (222),
1328 EMPTY_HOWTO (223),
1329 EMPTY_HOWTO (224),
1330 EMPTY_HOWTO (225),
1331 EMPTY_HOWTO (226),
1332 EMPTY_HOWTO (227),
1333 EMPTY_HOWTO (228),
1334 EMPTY_HOWTO (229),
1335 EMPTY_HOWTO (230),
1336 EMPTY_HOWTO (231),
1337 EMPTY_HOWTO (232),
1338 EMPTY_HOWTO (233),
1339 EMPTY_HOWTO (234),
1340 EMPTY_HOWTO (235),
1341 EMPTY_HOWTO (236),
1342 EMPTY_HOWTO (237),
1343 EMPTY_HOWTO (238),
1344 EMPTY_HOWTO (239),
1345 EMPTY_HOWTO (240),
1346 EMPTY_HOWTO (241),
1347 EMPTY_HOWTO (242),
1348 EMPTY_HOWTO (243),
1349 EMPTY_HOWTO (244),
1350 EMPTY_HOWTO (245),
1351 EMPTY_HOWTO (246),
1352 EMPTY_HOWTO (247),
1353 EMPTY_HOWTO (248),
1354 EMPTY_HOWTO (249),
1355 EMPTY_HOWTO (250),
1356 EMPTY_HOWTO (251),
1357 EMPTY_HOWTO (252),
1358 HOWTO (R_C6000_ALIGN, /* type */
1359 0, /* rightshift */
1360 0, /* size (0 = byte, 1 = short, 2 = long) */
1361 0, /* bitsize */
1362 FALSE, /* pc_relative */
1363 0, /* bitpos */
1364 complain_overflow_dont,/* complain_on_overflow */
1365 bfd_elf_generic_reloc, /* special_function */
1366 "R_C6000_ALIGN", /* name */
41820509 1367 TRUE, /* partial_inplace */
40b36596
JM		 1368 0, /* src_mask */
1369 0, /* dst_mask */
1370 FALSE), /* pcrel_offset */
1371 HOWTO (R_C6000_FPHEAD, /* type */
1372 0, /* rightshift */
1373 0, /* size (0 = byte, 1 = short, 2 = long) */
1374 0, /* bitsize */
1375 FALSE, /* pc_relative */
1376 0, /* bitpos */
1377 complain_overflow_dont,/* complain_on_overflow */
1378 bfd_elf_generic_reloc, /* special_function */
1379 "R_C6000_FPHEAD", /* name */
41820509 1380 TRUE, /* partial_inplace */
40b36596
JM		 1381 0, /* src_mask */
1382 0, /* dst_mask */
1383 FALSE), /* pcrel_offset */
1384 HOWTO (R_C6000_NOCMP, /* type */
1385 0, /* rightshift */
1386 0, /* size (0 = byte, 1 = short, 2 = long) */
1387 0, /* bitsize */
1388 FALSE, /* pc_relative */
1389 0, /* bitpos */
1390 complain_overflow_dont,/* complain_on_overflow */
1391 bfd_elf_generic_reloc, /* special_function */
1392 "R_C6000_NOCMP", /* name */
41820509 1393 TRUE, /* partial_inplace */
40b36596
JM		 1394 0, /* src_mask */
1395 0, /* dst_mask */
1396 FALSE) /* pcrel_offset */
1397};
1398
1399/* Map BFD relocations to ELF relocations. */
1400
1401typedef struct
1402{
1403 bfd_reloc_code_real_type bfd_reloc_val;
1404 enum elf_tic6x_reloc_type elf_reloc_val;
1405} tic6x_reloc_map;
1406
1407static const tic6x_reloc_map elf32_tic6x_reloc_map[] =
1408 {
1409 { BFD_RELOC_NONE, R_C6000_NONE },
1410 { BFD_RELOC_32, R_C6000_ABS32 },
1411 { BFD_RELOC_16, R_C6000_ABS16 },
1412 { BFD_RELOC_8, R_C6000_ABS8 },
1413 { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 },
1414 { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 },
1415 { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 },
1416 { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 },
1417 { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 },
1418 { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 },
1419 { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 },
1420 { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B },
1421 { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H },
1422 { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W },
1423 { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 },
1424 { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B },
1425 { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H },
1426 { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W },
1427 { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B },
1428 { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H },
1429 { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W },
1430 { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W },
1431 { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W },
1432 { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W },
1433 { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX },
1434 { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 },
1435 { BFD_RELOC_C6000_COPY, R_C6000_COPY },
ac145307
BS		 1436 { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT },
1437 { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE },
1438 { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 },
1439 { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 },
40b36596
JM		 1440 { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN },
1441 { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD },
1442 { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP }
1443 };
1444
1445static reloc_howto_type *
41820509 1446elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
40b36596
JM		 1447{
1448 unsigned int i;
1449
1450 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++)
1451 if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code)
41820509
JM		 1452 {
1453 enum elf_tic6x_reloc_type elf_reloc_val;
1454 reloc_howto_type *howto;
1455
1456 elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val;
1457 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1458 howto = &elf32_tic6x_howto_table[elf_reloc_val];
1459 else
1460 howto = &elf32_tic6x_howto_table_rel[elf_reloc_val];
1461
1462 /* Some relocations are RELA-only; do not return them for
1463 REL. */
1464 if (howto->name == NULL)
1465 howto = NULL;
1466
1467 return howto;
1468 }
40b36596
JM		 1469
1470 return NULL;
1471}
1472
1473static reloc_howto_type *
41820509 1474elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name)
40b36596 1475{
41820509
JM		 1476 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1477 {
1478 unsigned int i;
1479
1480 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++)
1481 if (elf32_tic6x_howto_table[i].name != NULL
1482 && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0)
1483 return &elf32_tic6x_howto_table[i];
1484 }
1485 else
1486 {
1487 unsigned int i;
40b36596 1488
41820509
JM		 1489 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++)
1490 if (elf32_tic6x_howto_table_rel[i].name != NULL
1491 && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0)
1492 return &elf32_tic6x_howto_table_rel[i];
1493 }
40b36596
JM		 1494
1495 return NULL;
1496}
1497
1498static void
1499elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1500 Elf_Internal_Rela *elf_reloc)
1501{
1502 unsigned int r_type;
1503
1504 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1505 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table))
1506 bfd_reloc->howto = NULL;
1507 else
1508 bfd_reloc->howto = &elf32_tic6x_howto_table[r_type];
1509}
1510
41820509
JM		 1511static void
1512elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1513 Elf_Internal_Rela *elf_reloc)
1514{
1515 unsigned int r_type;
1516
1517 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1518 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel))
1519 bfd_reloc->howto = NULL;
1520 else
1521 bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type];
1522}
1523
1524void
1525elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p)
1526{
1527 elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p;
1528}
1529
ac145307
BS		 1530/* Create an entry in a C6X ELF linker hash table. */
1531
1532static struct bfd_hash_entry *
1533elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry,
1534 struct bfd_hash_table *table,
1535 const char *string)
1536{
1537 /* Allocate the structure if it has not already been allocated by a
1538 subclass. */
1539 if (entry == NULL)
1540 {
1541 entry = bfd_hash_allocate (table,
1542 sizeof (struct elf32_tic6x_link_hash_entry));
1543 if (entry == NULL)
1544 return entry;
1545 }
1546
1547 /* Call the allocation method of the superclass. */
1548 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1549 if (entry != NULL)
1550 {
1551 struct elf32_tic6x_link_hash_entry *eh;
1552
1553 eh = (struct elf32_tic6x_link_hash_entry *) entry;
1554 eh->dyn_relocs = NULL;
1555 }
1556
1557 return entry;
1558}
1559
1560/* Create a C6X ELF linker hash table. */
1561
1562static struct bfd_link_hash_table *
1563elf32_tic6x_link_hash_table_create (bfd *abfd)
1564{
1565 struct elf32_tic6x_link_hash_table *ret;
1566 bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table);
1567
7bf52ea2 1568 ret = bfd_zmalloc (amt);
ac145307
BS		 1569 if (ret == NULL)
1570 return NULL;
1571
1572 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1573 elf32_tic6x_link_hash_newfunc,
1574 sizeof (struct elf32_tic6x_link_hash_entry),
1575 TIC6X_ELF_DATA))
1576 {
1577 free (ret);
1578 return NULL;
1579 }
1580
ac145307
BS		 1581 ret->obfd = abfd;
1582 ret->elf.is_relocatable_executable = 1;
1583
1584 return &ret->elf.root;
1585}
1586
c6a8f6e0
BS		 1587static bfd_boolean
1588elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info)
1589{
0e1862bb 1590 if (bfd_link_pic (info))
c6a8f6e0
BS		 1591 {
1592 obj_attribute *out_attr;
1593 out_attr = elf_known_obj_attributes_proc (abfd);
1594 if (out_attr[Tag_ABI_PIC].i == 0)
1595 {
1596 _bfd_error_handler (_("warning: generating a shared library "
1597 "containing non-PIC code"));
1598 }
1599 if (out_attr[Tag_ABI_PID].i == 0)
1600 {
1601 _bfd_error_handler (_("warning: generating a shared library "
1602 "containing non-PID code"));
1603 }
1604 }
1605 /* Invoke the regular ELF backend linker to do all the work. */
1606 if (!bfd_elf_final_link (abfd, info))
1607 return FALSE;
1608
1609 return TRUE;
1610}
1611
ac145307
BS		 1612/* Called to pass PARAMS to the backend. We store them in the hash table
1613 associated with INFO. */
1614
1615void
1616elf32_tic6x_setup (struct bfd_link_info *info,
1617 struct elf32_tic6x_params *params)
1618{
1619 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info);
1620 htab->params = *params;
1621}
1622
1623/* Determine if we're dealing with a DSBT object. */
1624
1625static bfd_boolean
1626elf32_tic6x_using_dsbt (bfd *abfd)
1627{
1628 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC,
1629 Tag_ABI_DSBT);
1630}
1631
1632/* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
1633 sections in DYNOBJ, and set up shortcuts to them in our hash
1634 table. */
1635
1636static bfd_boolean
1637elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
1638{
1639 struct elf32_tic6x_link_hash_table *htab;
1640 flagword flags;
1641
1642 htab = elf32_tic6x_hash_table (info);
1643 if (htab == NULL)
1644 return FALSE;
1645
1646 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1647 return FALSE;
1648
1649 /* Create .dsbt */
1650 flags = (SEC_ALLOC | SEC_LOAD
1651 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1652 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt",
1653 flags);
1654 if (htab->dsbt == NULL
1655 || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2)
1656 || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5))
1657 return FALSE;
1658
ac145307
BS		 1659 return TRUE;
1660}
1661
41820509
JM		 1662static bfd_boolean
1663elf32_tic6x_mkobject (bfd *abfd)
1664{
1665 bfd_boolean ret;
1666
1667 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
1668 TIC6X_ELF_DATA);
1669 if (ret)
1670 elf32_tic6x_set_use_rela_p (abfd, TRUE);
1671 return ret;
1672}
1673
ac145307
BS		 1674/* Install relocation RELA into section SRELA, incrementing its
1675 reloc_count. */
1676
1677static void
1678elf32_tic6x_install_rela (bfd *output_bfd, asection *srela,
1679 Elf_Internal_Rela *rela)
1680{
1681 bfd_byte *loc;
1682 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela);
1683 loc = srela->contents + off;
1684 BFD_ASSERT (off < srela->size);
1685 bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
1686}
1687
1688/* Create a dynamic reloc against the GOT at offset OFFSET. The contents
1689 of the GOT at this offset have been initialized with the relocation. */
1690
1691static void
1692elf32_tic6x_make_got_dynreloc (bfd *output_bfd,
1693 struct elf32_tic6x_link_hash_table *htab,
1694 asection *sym_sec, bfd_vma offset)
1695{
1696 asection *sgot = htab->elf.sgot;
1697 Elf_Internal_Rela outrel;
1698 int dynindx;
1699
1700 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset;
1701 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
1702 if (sym_sec && sym_sec->output_section
1703 && ! bfd_is_abs_section (sym_sec->output_section)
1704 && ! bfd_is_und_section (sym_sec->output_section))
1705 {
1706 dynindx = elf_section_data (sym_sec->output_section)->dynindx;
1707 outrel.r_addend -= sym_sec->output_section->vma;
1708 }
1709 else
1710 {
1711 dynindx = 0;
1712 }
1713 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32);
1714 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel);
1715}
1716
1717/* Finish up dynamic symbol handling. We set the contents of various
1718 dynamic sections here. */
1719
1720static bfd_boolean
1721elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd,
1722 struct bfd_link_info *info,
1723 struct elf_link_hash_entry *h,
1724 Elf_Internal_Sym * sym)
1725{
ac145307
BS		 1726 struct elf32_tic6x_link_hash_table *htab;
1727
1728 htab = elf32_tic6x_hash_table (info);
ac145307
BS		 1729
1730 if (h->plt.offset != (bfd_vma) -1)
1731 {
1732 bfd_vma plt_index;
1733 bfd_vma got_section_offset, got_dp_offset, rela_offset;
1734 Elf_Internal_Rela rela;
1735 bfd_byte *loc;
1736 asection *plt, *gotplt, *relplt;
1737 const struct elf_backend_data *bed;
1738
1739 bed = get_elf_backend_data (output_bfd);
1740
1741 BFD_ASSERT (htab->elf.splt != NULL);
1742 plt = htab->elf.splt;
1743 gotplt = htab->elf.sgotplt;
1744 relplt = htab->elf.srelplt;
1745
1746 /* This symbol has an entry in the procedure linkage table. Set
1747 it up. */
1748
1749 if ((h->dynindx == -1
0e1862bb 1750 && !((h->forced_local || bfd_link_executable (info))
ac145307
BS		 1751 && h->def_regular
1752 && h->type == STT_GNU_IFUNC))
1753 || plt == NULL
1754 || gotplt == NULL
1755 || relplt == NULL)
1756 abort ();
1757
1758 /* Get the index in the procedure linkage table which
1759 corresponds to this symbol. This is the index of this symbol
1760 in all the symbols for which we are making plt entries. The
1761 first entry in the procedure linkage table is reserved.
1762
1763 Get the offset into the .got table of the entry that
1764 corresponds to this function. Each .got entry is 4 bytes.
1765 The first three are reserved.
68ffbac6 1766
ac145307
BS		 1767 For static executables, we don't reserve anything. */
1768
1769 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1770 got_section_offset = plt_index + bed->got_header_size / 4;
1771 got_dp_offset = got_section_offset + htab->params.dsbt_size;
1772 rela_offset = plt_index * sizeof (Elf32_External_Rela);
1773
1774 got_section_offset *= 4;
1775
1776 /* Fill in the entry in the procedure linkage table. */
1777
1778 /* ldw .d2t2 *+B14($GOT(f)), b2 */
1779 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e,
1780 plt->contents + h->plt.offset);
1781 /* mvk .s2 low(rela_offset), b0 */
1782 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a,
1783 plt->contents + h->plt.offset + 4);
1784 /* mvkh .s2 high(rela_offset), b0 */
1785 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a,
1786 plt->contents + h->plt.offset + 8);
1787 /* nop 2 */
1788 bfd_put_32 (output_bfd, 0x00002000,
1789 plt->contents + h->plt.offset + 12);
1790 /* b .s2 b2 */
1791 bfd_put_32 (output_bfd, 0x00080362,
1792 plt->contents + h->plt.offset + 16);
1793 /* nop 5 */
1794 bfd_put_32 (output_bfd, 0x00008000,
1795 plt->contents + h->plt.offset + 20);
1796
1797 /* Fill in the entry in the global offset table. */
1798 bfd_put_32 (output_bfd,
1799 (plt->output_section->vma + plt->output_offset),
1800 gotplt->contents + got_section_offset);
1801
1802 /* Fill in the entry in the .rel.plt section. */
1803 rela.r_offset = (gotplt->output_section->vma
1804 + gotplt->output_offset
1805 + got_section_offset);
1806 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT);
1807 rela.r_addend = 0;
1808 loc = relplt->contents + rela_offset;
1809 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1810
1811 if (!h->def_regular)
1812 {
1813 /* Mark the symbol as undefined, rather than as defined in
1814 the .plt section. */
1815 sym->st_shndx = SHN_UNDEF;
1816 sym->st_value = 0;
1817 }
1818 }
1819
1820 if (h->got.offset != (bfd_vma) -1)
1821 {
1822 asection *sgot;
1823 asection *srela;
1824
1825 /* This symbol has an entry in the global offset table.
1826 Set it up. */
1827
ce558b89
AM		 1828 sgot = htab->elf.sgot;
1829 srela = htab->elf.srelgot;
ac145307
BS		 1830 BFD_ASSERT (sgot != NULL && srela != NULL);
1831
1832 /* If this is a -Bsymbolic link, and the symbol is defined
1833 locally, we just want to emit a RELATIVE reloc. Likewise if
1834 the symbol was forced to be local because of a version file.
1835 The entry in the global offset table will already have been
1836 initialized in the relocate_section function. */
0e1862bb 1837 if (bfd_link_pic (info)
a496fbc8 1838 && (SYMBOLIC_BIND (info, h)
ac145307
BS		 1839 || h->dynindx == -1 || h->forced_local) && h->def_regular)
1840 {
1841 asection *s = h->root.u.def.section;
1842 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s,
1843 h->got.offset & ~(bfd_vma) 1);
1844 }
1845 else
1846 {
1847 Elf_Internal_Rela outrel;
1848 bfd_put_32 (output_bfd, (bfd_vma) 0,
1849 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
1850 outrel.r_offset = (sgot->output_section->vma
1851 + sgot->output_offset
1852 + (h->got.offset & ~(bfd_vma) 1));
1853 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32);
1854 outrel.r_addend = 0;
1855
1856 elf32_tic6x_install_rela (output_bfd, srela, &outrel);
1857 }
1858 }
1859
1860 if (h->needs_copy)
1861 {
1862 Elf_Internal_Rela rel;
5474d94f 1863 asection *s;
ac145307
BS		 1864
1865 /* This symbol needs a copy reloc. Set it up. */
1866
1867 if (h->dynindx == -1
1868 || (h->root.type != bfd_link_hash_defined
1869 && h->root.type != bfd_link_hash_defweak)
5474d94f
AM		 1870 || htab->elf.srelbss == NULL
1871 || htab->elf.sreldynrelro == NULL)
ac145307
BS		 1872 abort ();
1873
1874 rel.r_offset = (h->root.u.def.value
1875 + h->root.u.def.section->output_section->vma
1876 + h->root.u.def.section->output_offset);
1877 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY);
1878 rel.r_addend = 0;
5474d94f
AM		 1879 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
1880 s = htab->elf.sreldynrelro;
1881 else
1882 s = htab->elf.srelbss;
ac145307 1883
5474d94f 1884 elf32_tic6x_install_rela (output_bfd, s, &rel);
ac145307
BS		 1885 }
1886
1887 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 1888 if (h == elf_hash_table (info)->hdynamic
ac145307
BS		 1889 || h == elf_hash_table (info)->hgot)
1890 sym->st_shndx = SHN_ABS;
1891
1892 return TRUE;
1893}
1894
9cf0e282
PB		 1895/* Unwinding tables are not referenced directly. This pass marks them as
1896 required if the corresponding code section is marked. */
1897
1898static bfd_boolean
1899elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info,
1900 elf_gc_mark_hook_fn gc_mark_hook)
1901{
1902 bfd *sub;
1903 Elf_Internal_Shdr **elf_shdrp;
1904 bfd_boolean again;
1905
7f6ab9f8
AM		 1906 _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook);
1907
9cf0e282
PB		 1908 /* Marking EH data may cause additional code sections to be marked,
1909 requiring multiple passes. */
1910 again = TRUE;
1911 while (again)
1912 {
1913 again = FALSE;
c72f2fb2 1914 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
9cf0e282
PB		 1915 {
1916 asection *o;
1917
1918 if (! is_tic6x_elf (sub))
1919 continue;
1920
1921 elf_shdrp = elf_elfsections (sub);
1922 for (o = sub->sections; o != NULL; o = o->next)
1923 {
1924 Elf_Internal_Shdr *hdr;
1925
1926 hdr = &elf_section_data (o)->this_hdr;
1927 if (hdr->sh_type == SHT_C6000_UNWIND
1928 && hdr->sh_link
1929 && hdr->sh_link < elf_numsections (sub)
1930 && !o->gc_mark
1931 && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark)
1932 {
1933 again = TRUE;
1934 if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
1935 return FALSE;
1936 }
1937 }
1938 }
1939 }
1940
1941 return TRUE;
1942}
1943
1bce6bd8
PB		 1944/* Return TRUE if this is an unwinding table index. */
1945
1946static bfd_boolean
1947is_tic6x_elf_unwind_section_name (const char *name)
1948{
1949 return (CONST_STRNEQ (name, ELF_STRING_C6000_unwind)
1950 || CONST_STRNEQ (name, ELF_STRING_C6000_unwind_once));
1951}
1952
1953
1954/* Set the type and flags for an unwinding index table. We do this by
1955 the section name, which is a hack, but ought to work. */
1956
1957static bfd_boolean
1958elf32_tic6x_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1959 Elf_Internal_Shdr *hdr, asection *sec)
1960{
1961 const char * name;
1962
1963 name = bfd_get_section_name (abfd, sec);
1964
1965 if (is_tic6x_elf_unwind_section_name (name))
1966 {
1967 hdr->sh_type = SHT_C6000_UNWIND;
1968 hdr->sh_flags |= SHF_LINK_ORDER;
1969 }
1970
1971 return TRUE;
1972}
1973
ac145307
BS		 1974/* Update the got entry reference counts for the section being removed. */
1975
1976static bfd_boolean
1977elf32_tic6x_gc_sweep_hook (bfd *abfd,
1978 struct bfd_link_info *info,
1979 asection *sec,
1980 const Elf_Internal_Rela *relocs)
1981{
1982 struct elf32_tic6x_link_hash_table *htab;
1983 Elf_Internal_Shdr *symtab_hdr;
1984 struct elf_link_hash_entry **sym_hashes;
1985 bfd_signed_vma *local_got_refcounts;
1986 const Elf_Internal_Rela *rel, *relend;
1987
0e1862bb 1988 if (bfd_link_relocatable (info))
ac145307
BS		 1989 return TRUE;
1990
1991 htab = elf32_tic6x_hash_table (info);
1992 if (htab == NULL)
1993 return FALSE;
1994
1995 elf_section_data (sec)->local_dynrel = NULL;
1996
1997 symtab_hdr = &elf_symtab_hdr (abfd);
1998 sym_hashes = elf_sym_hashes (abfd);
1999 local_got_refcounts = elf_local_got_refcounts (abfd);
2000
2001 relend = relocs + sec->reloc_count;
2002 for (rel = relocs; rel < relend; rel++)
2003 {
2004 unsigned long r_symndx;
2005 unsigned int r_type;
2006 struct elf_link_hash_entry *h = NULL;
2007
2008 r_symndx = ELF32_R_SYM (rel->r_info);
2009 if (r_symndx >= symtab_hdr->sh_info)
2010 {
2011 struct elf32_tic6x_link_hash_entry *eh;
2012 struct elf_dyn_relocs **pp;
2013 struct elf_dyn_relocs *p;
2014
2015 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2016 while (h->root.type == bfd_link_hash_indirect
2017 || h->root.type == bfd_link_hash_warning)
2018 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2019 eh = (struct elf32_tic6x_link_hash_entry *) h;
2020
2021 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2022 if (p->sec == sec)
2023 {
2024 /* Everything must go for SEC. */
2025 *pp = p->next;
2026 break;
2027 }
2028 }
2029
2030 r_type = ELF32_R_TYPE (rel->r_info);
2031
2032 switch (r_type)
2033 {
2034 case R_C6000_SBR_GOT_U15_W:
2035 case R_C6000_SBR_GOT_L16_W:
2036 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2037 case R_C6000_EHTYPE:
ac145307
BS		 2038 if (h != NULL)
2039 {
2040 if (h->got.refcount > 0)
2041 h->got.refcount -= 1;
2042 }
2043 else if (local_got_refcounts != NULL)
2044 {
2045 if (local_got_refcounts[r_symndx] > 0)
2046 local_got_refcounts[r_symndx] -= 1;
2047 }
2048 break;
2049
2050 default:
2051 break;
2052 }
2053 }
2054
2055 return TRUE;
2056}
2057
2058/* Adjust a symbol defined by a dynamic object and referenced by a
2059 regular object. The current definition is in some section of the
2060 dynamic object, but we're not including those sections. We have to
2061 change the definition to something the rest of the link can
2062 understand. */
2063
2064static bfd_boolean
2065elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info,
2066 struct elf_link_hash_entry *h)
2067{
2068 struct elf32_tic6x_link_hash_table *htab;
2069 bfd *dynobj;
5474d94f 2070 asection *s, *srel;
ac145307
BS		 2071
2072 dynobj = elf_hash_table (info)->dynobj;
2073
2074 /* Make sure we know what is going on here. */
2075 BFD_ASSERT (dynobj != NULL
2076 && (h->needs_plt
2077 || h->u.weakdef != NULL
2078 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
2079
2080 /* If this is a function, put it in the procedure linkage table. We
2081 will fill in the contents of the procedure linkage table later,
2082 when we know the address of the .got section. */
2083 if (h->type == STT_FUNC
2084 || h->needs_plt)
2085 {
2086 if (h->plt.refcount <= 0
2087 || SYMBOL_CALLS_LOCAL (info, h)
2088 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2089 && h->root.type == bfd_link_hash_undefweak))
2090 {
2091 /* This case can occur if we saw a PLT32 reloc in an input
2092 file, but the symbol was never referred to by a dynamic
2093 object, or if all references were garbage collected. In
2094 such a case, we don't actually need to build a procedure
2095 linkage table, and we can just do a PC32 reloc instead. */
2096 h->plt.offset = (bfd_vma) -1;
2097 h->needs_plt = 0;
2098 }
2099
2100 return TRUE;
2101 }
2102
2103 /* If this is a weak symbol, and there is a real definition, the
2104 processor independent code will have arranged for us to see the
2105 real definition first, and we can just use the same value. */
2106 if (h->u.weakdef != NULL)
2107 {
2108 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2109 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2110 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2111 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2112 h->non_got_ref = h->u.weakdef->non_got_ref;
2113 return TRUE;
2114 }
2115
2116 /* This is a reference to a symbol defined by a dynamic object which
2117 is not a function. */
2118
2119 /* If we are creating a shared library, we must presume that the
2120 only references to the symbol are via the global offset table.
2121 For such cases we need not do anything here; the relocations will
2122 be handled correctly by relocate_section. */
0e1862bb 2123 if (bfd_link_pic (info))
ac145307
BS		 2124 return TRUE;
2125
2126 /* If there are no references to this symbol that do not use the
2127 GOT, we don't need to generate a copy reloc. */
2128 if (!h->non_got_ref)
2129 return TRUE;
2130
2131 /* If -z nocopyreloc was given, we won't generate them either. */
2132 if (info->nocopyreloc)
2133 {
2134 h->non_got_ref = 0;
2135 return TRUE;
2136 }
2137
2138 htab = elf32_tic6x_hash_table (info);
2139 if (htab == NULL)
2140 return FALSE;
2141
ac145307
BS		 2142 /* We must allocate the symbol in our .dynbss section, which will
2143 become part of the .bss section of the executable. There will be
2144 an entry for this symbol in the .dynsym section. The dynamic
2145 object will contain position independent code, so all references
2146 from the dynamic object to this symbol will go through the global
2147 offset table. The dynamic linker will use the .dynsym entry to
2148 determine the address it must put in the global offset table, so
2149 both the dynamic object and the regular object will refer to the
2150 same memory location for the variable. */
2151
2152 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2153 copy the initial value out of the dynamic object and into the
2154 runtime process image. */
5474d94f
AM		 2155 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2156 {
2157 s = htab->elf.sdynrelro;
2158 srel = htab->elf.sreldynrelro;
2159 }
2160 else
2161 {
2162 s = htab->elf.sdynbss;
2163 srel = htab->elf.srelbss;
2164 }
1d7e9d18 2165 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
ac145307 2166 {
5474d94f 2167 srel->size += sizeof (Elf32_External_Rela);
ac145307
BS		 2168 h->needs_copy = 1;
2169 }
2170
6cabe1ea 2171 return _bfd_elf_adjust_dynamic_copy (info, h, s);
ac145307
BS		 2172}
2173
41820509
JM		 2174static bfd_boolean
2175elf32_tic6x_new_section_hook (bfd *abfd, asection *sec)
2176{
2177 bfd_boolean ret;
2178
fbd9ad90
PB		 2179 /* Allocate target specific section data. */
2180 if (!sec->used_by_bfd)
2181 {
2182 _tic6x_elf_section_data *sdata;
2183 bfd_size_type amt = sizeof (*sdata);
2184
2185 sdata = (_tic6x_elf_section_data *) bfd_zalloc (abfd, amt);
2186 if (sdata == NULL)
2187 return FALSE;
2188 sec->used_by_bfd = sdata;
2189 }
2190
41820509
JM		 2191 ret = _bfd_elf_new_section_hook (abfd, sec);
2192 sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p;
2193
2194 return ret;
2195}
2196
2197/* Return true if relocation REL against section SEC is a REL rather
2198 than RELA relocation. RELOCS is the first relocation in the
2199 section and ABFD is the bfd that contains SEC. */
2200
2201static bfd_boolean
2202elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec,
2203 const Elf_Internal_Rela *relocs,
2204 const Elf_Internal_Rela *rel)
2205{
2206 Elf_Internal_Shdr *rel_hdr;
2207 const struct elf_backend_data *bed;
2208
2209 /* To determine which flavor of relocation this is, we depend on the
d4730f92
BS		 2210 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
2211 rel_hdr = elf_section_data (sec)->rel.hdr;
2212 if (rel_hdr == NULL)
2213 return FALSE;
41820509 2214 bed = get_elf_backend_data (abfd);
d4730f92
BS		 2215 return ((size_t) (rel - relocs)
2216 < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel);
41820509
JM		 2217}
2218
ac145307
BS		 2219/* We need dynamic symbols for every section, since segments can
2220 relocate independently. */
2221static bfd_boolean
2222elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2223 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2224 asection *p)
2225{
2226 switch (elf_section_data (p)->this_hdr.sh_type)
2227 {
2228 case SHT_PROGBITS:
2229 case SHT_NOBITS:
2230 /* If sh_type is yet undecided, assume it could be
2231 SHT_PROGBITS/SHT_NOBITS. */
2232 case SHT_NULL:
2233 return FALSE;
2234
2235 /* There shouldn't be section relative relocations
2236 against any other section. */
2237 default:
2238 return TRUE;
2239 }
2240}
2241
40b36596
JM		 2242static bfd_boolean
2243elf32_tic6x_relocate_section (bfd *output_bfd,
2244 struct bfd_link_info *info,
2245 bfd *input_bfd,
2246 asection *input_section,
2247 bfd_byte *contents,
2248 Elf_Internal_Rela *relocs,
2249 Elf_Internal_Sym *local_syms,
2250 asection **local_sections)
2251{
ac145307 2252 struct elf32_tic6x_link_hash_table *htab;
40b36596
JM		 2253 Elf_Internal_Shdr *symtab_hdr;
2254 struct elf_link_hash_entry **sym_hashes;
ac145307 2255 bfd_vma *local_got_offsets;
40b36596
JM		 2256 Elf_Internal_Rela *rel;
2257 Elf_Internal_Rela *relend;
2258 bfd_boolean ok = TRUE;
2259
ac145307 2260 htab = elf32_tic6x_hash_table (info);
40b36596
JM		 2261 symtab_hdr = & elf_symtab_hdr (input_bfd);
2262 sym_hashes = elf_sym_hashes (input_bfd);
ac145307 2263 local_got_offsets = elf_local_got_offsets (input_bfd);
40b36596
JM		 2264
2265 relend = relocs + input_section->reloc_count;
2266
2267 for (rel = relocs; rel < relend; rel ++)
2268 {
2269 int r_type;
2270 unsigned long r_symndx;
2271 arelent bfd_reloc;
2272 reloc_howto_type *howto;
2273 Elf_Internal_Sym *sym;
2274 asection *sec;
2275 struct elf_link_hash_entry *h;
4a732032 2276 bfd_vma off, off2, relocation;
40b36596
JM		 2277 bfd_boolean unresolved_reloc;
2278 bfd_reloc_status_type r;
2279 struct bfd_link_hash_entry *sbh;
41820509 2280 bfd_boolean is_rel;
40b36596
JM		 2281
2282 r_type = ELF32_R_TYPE (rel->r_info);
2283 r_symndx = ELF32_R_SYM (rel->r_info);
2284
41820509
JM		 2285 is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section,
2286 relocs, rel);
2287
2288 if (is_rel)
2289 elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel);
2290 else
2291 elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel);
40b36596
JM		 2292 howto = bfd_reloc.howto;
2293 if (howto == NULL)
2294 {
2295 bfd_set_error (bfd_error_bad_value);
2296 return FALSE;
2297 }
2298
2299 h = NULL;
2300 sym = NULL;
2301 sec = NULL;
2302 unresolved_reloc = FALSE;
2303
2304 if (r_symndx < symtab_hdr->sh_info)
2305 {
2306 sym = local_syms + r_symndx;
2307 sec = local_sections[r_symndx];
2308 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2309 }
2310 else
2311 {
62d887d4 2312 bfd_boolean warned, ignored;
40b36596
JM		 2313
2314 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2315 r_symndx, symtab_hdr, sym_hashes,
2316 h, sec, relocation,
62d887d4 2317 unresolved_reloc, warned, ignored);
40b36596
JM		 2318 }
2319
dbaa2011 2320 if (sec != NULL && discarded_section (sec))
e4067dbb 2321 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2322 rel, 1, relend, howto, 0, contents);
40b36596 2323
0e1862bb 2324 if (bfd_link_relocatable (info))
41820509
JM		 2325 {
2326 if (is_rel
2327 && sym != NULL
2328 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2329 {
2330 rel->r_addend = 0;
2331 relocation = sec->output_offset + sym->st_value;
2332 r = _bfd_relocate_contents (howto, input_bfd, relocation,
2333 contents + rel->r_offset);
2334 goto done_reloc;
2335 }
2336 continue;
2337 }
40b36596
JM		 2338
2339 switch (r_type)
2340 {
2341 case R_C6000_NONE:
2342 case R_C6000_ALIGN:
2343 case R_C6000_FPHEAD:
2344 case R_C6000_NOCMP:
2345 /* No action needed. */
2346 continue;
2347
2348 case R_C6000_PCR_S21:
ac145307
BS		 2349 /* A branch to an undefined weak symbol is turned into a
2350 "b .s2 B3" instruction if the existing insn is of the
2351 form "b .s2 symbol". */
2352 if (h ? h->root.type == bfd_link_hash_undefweak
2353 && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1)
2354 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2355 {
2356 unsigned long oldval;
2357 oldval = bfd_get_32 (input_bfd, contents + rel->r_offset);
2358
2359 if ((oldval & 0x7e) == 0x12)
2360 {
2361 oldval &= 0xF0000001;
2362 bfd_put_32 (input_bfd, oldval | 0x000c0362,
2363 contents + rel->r_offset);
2364 r = bfd_reloc_ok;
2365 goto done_reloc;
2366 }
2367 }
1a0670f3 2368 /* Fall through. */
ac145307 2369
40b36596
JM		 2370 case R_C6000_PCR_S12:
2371 case R_C6000_PCR_S10:
2372 case R_C6000_PCR_S7:
ac145307
BS		 2373 if (h != NULL
2374 && h->plt.offset != (bfd_vma) -1
2375 && htab->elf.splt != NULL)
2376 {
2377 relocation = (htab->elf.splt->output_section->vma
2378 + htab->elf.splt->output_offset
2379 + h->plt.offset);
2380 }
2381
40b36596
JM		 2382 /* Generic PC-relative handling produces a value relative to
2383 the exact location of the relocation. Adjust it to be
2384 relative to the start of the fetch packet instead. */
2385 relocation += (input_section->output_section->vma
2386 + input_section->output_offset
2387 + rel->r_offset) & 0x1f;
ac145307
BS		 2388 unresolved_reloc = FALSE;
2389 break;
2390
4a732032
BS		 2391 case R_C6000_PCR_H16:
2392 case R_C6000_PCR_L16:
2393 off = (input_section->output_section->vma
2394 + input_section->output_offset
2395 + rel->r_offset);
2396 /* These must be calculated as R = S - FP(FP(PC) - A).
2397 PC, here, is the value we just computed in OFF. RELOCATION
2398 has the address of S + A. */
2399 relocation -= rel->r_addend;
2400 off2 = ((off & ~(bfd_vma)0x1f) - rel->r_addend) & (bfd_vma)~0x1f;
2401 off2 = relocation - off2;
2402 relocation = off + off2;
2403 break;
2404
ac145307
BS		 2405 case R_C6000_DSBT_INDEX:
2406 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index;
0e1862bb 2407 if (!bfd_link_pic (info) || relocation != 0)
ac145307
BS		 2408 break;
2409
2410 /* fall through */
40b36596
JM		 2411 case R_C6000_ABS32:
2412 case R_C6000_ABS16:
2413 case R_C6000_ABS8:
2414 case R_C6000_ABS_S16:
2415 case R_C6000_ABS_L16:
2416 case R_C6000_ABS_H16:
ac145307
BS		 2417 /* When generating a shared object or relocatable executable, these
2418 relocations are copied into the output file to be resolved at
2419 run time. */
0e1862bb 2420 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
ac145307
BS		 2421 && (input_section->flags & SEC_ALLOC)
2422 && (h == NULL
2423 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2424 || h->root.type != bfd_link_hash_undefweak))
2425 {
2426 Elf_Internal_Rela outrel;
2427 bfd_boolean skip, relocate;
2428 asection *sreloc;
2429
2430 unresolved_reloc = FALSE;
2431
2432 sreloc = elf_section_data (input_section)->sreloc;
2433 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
2434
2435 skip = FALSE;
2436 relocate = FALSE;
2437
2438 outrel.r_offset =
2439 _bfd_elf_section_offset (output_bfd, info, input_section,
2440 rel->r_offset);
2441 if (outrel.r_offset == (bfd_vma) -1)
2442 skip = TRUE;
2443 else if (outrel.r_offset == (bfd_vma) -2)
2444 skip = TRUE, relocate = TRUE;
2445 outrel.r_offset += (input_section->output_section->vma
2446 + input_section->output_offset);
2447
2448 if (skip)
2449 memset (&outrel, 0, sizeof outrel);
2450 else if (h != NULL
2451 && h->dynindx != -1
0e1862bb 2452 && (!bfd_link_pic (info)
a496fbc8 2453 || !SYMBOLIC_BIND (info, h)
ac145307
BS		 2454 || !h->def_regular))
2455 {
2456 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2457 outrel.r_addend = rel->r_addend;
2458 }
2459 else
2460 {
2461 long indx;
2462
2463 outrel.r_addend = relocation + rel->r_addend;
2464
2465 if (bfd_is_abs_section (sec))
2466 indx = 0;
2467 else if (sec == NULL || sec->owner == NULL)
2468 {
2469 bfd_set_error (bfd_error_bad_value);
2470 return FALSE;
2471 }
2472 else
2473 {
2474 asection *osec;
2475
2476 osec = sec->output_section;
2477 indx = elf_section_data (osec)->dynindx;
2478 outrel.r_addend -= osec->vma;
2479 BFD_ASSERT (indx != 0);
2480 }
2481
2482 outrel.r_info = ELF32_R_INFO (indx, r_type);
2483 }
2484
2485 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel);
2486
2487 /* If this reloc is against an external symbol, we do not want to
2488 fiddle with the addend. Otherwise, we need to include the symbol
2489 value so that it becomes an addend for the dynamic reloc. */
2490 if (! relocate)
2491 continue;
2492 }
2493
40b36596
JM		 2494 /* Generic logic OK. */
2495 break;
2496
2497 case R_C6000_SBR_U15_B:
2498 case R_C6000_SBR_U15_H:
2499 case R_C6000_SBR_U15_W:
2500 case R_C6000_SBR_S16:
2501 case R_C6000_SBR_L16_B:
2502 case R_C6000_SBR_L16_H:
2503 case R_C6000_SBR_L16_W:
2504 case R_C6000_SBR_H16_B:
2505 case R_C6000_SBR_H16_H:
2506 case R_C6000_SBR_H16_W:
2507 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
2508 FALSE, FALSE, TRUE);
2509 if (sbh != NULL
2510 && (sbh->type == bfd_link_hash_defined
2511 || sbh->type == bfd_link_hash_defweak))
ac145307
BS		 2512 {
2513 if (h ? (h->root.type == bfd_link_hash_undefweak
2514 && (htab->elf.splt == NULL
2515 || h->plt.offset == (bfd_vma) -1))
2516 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2517 relocation = 0;
2518 else
2519 relocation -= (sbh->u.def.value
2520 + sbh->u.def.section->output_section->vma
2521 + sbh->u.def.section->output_offset);
2522 }
40b36596
JM		 2523 else
2524 {
4eca0228
AM		 2525 _bfd_error_handler (_("%B: SB-relative relocation but "
2526 "__c6xabi_DSBT_BASE not defined"),
2527 input_bfd);
40b36596
JM		 2528 ok = FALSE;
2529 continue;
2530 }
2531 break;
2532
2533 case R_C6000_SBR_GOT_U15_W:
2534 case R_C6000_SBR_GOT_L16_W:
2535 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2536 case R_C6000_EHTYPE:
ac145307
BS		 2537 /* Relocation is to the entry for this symbol in the global
2538 offset table. */
2539 if (htab->elf.sgot == NULL)
2540 abort ();
2541
2542 if (h != NULL)
2543 {
2544 bfd_boolean dyn;
2545
2546 off = h->got.offset;
2547 dyn = htab->elf.dynamic_sections_created;
0e1862bb
L		 2548 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2549 bfd_link_pic (info),
2550 h)
2551 || (bfd_link_pic (info)
ac145307
BS		 2552 && SYMBOL_REFERENCES_LOCAL (info, h))
2553 || (ELF_ST_VISIBILITY (h->other)
2554 && h->root.type == bfd_link_hash_undefweak))
2555 {
2556 /* This is actually a static link, or it is a
2557 -Bsymbolic link and the symbol is defined
2558 locally, or the symbol was forced to be local
2559 because of a version file. We must initialize
2560 this entry in the global offset table. Since the
2561 offset must always be a multiple of 4, we use the
2562 least significant bit to record whether we have
2563 initialized it already.
2564
2565 When doing a dynamic link, we create a .rel.got
2566 relocation entry to initialize the value. This
2567 is done in the finish_dynamic_symbol routine. */
2568 if ((off & 1) != 0)
2569 off &= ~1;
2570 else
2571 {
2572 bfd_put_32 (output_bfd, relocation,
2573 htab->elf.sgot->contents + off);
2574 h->got.offset |= 1;
2575
0e1862bb
L		 2576 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2577 bfd_link_pic (info),
ac145307
BS		 2578 h)
2579 && !(ELF_ST_VISIBILITY (h->other)
2580 && h->root.type == bfd_link_hash_undefweak))
2581 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec,
2582 off);
2583 }
2584 }
2585 else
2586 unresolved_reloc = FALSE;
2587 }
2588 else
2589 {
2590 if (local_got_offsets == NULL)
2591 abort ();
2592
2593 off = local_got_offsets[r_symndx];
2594
2595 /* The offset must always be a multiple of 4. We use
2596 the least significant bit to record whether we have
2597 already generated the necessary reloc. */
2598 if ((off & 1) != 0)
2599 off &= ~1;
2600 else
2601 {
2602 bfd_put_32 (output_bfd, relocation,
2603 htab->elf.sgot->contents + off);
2604
0e1862bb 2605 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
ac145307
BS		 2606 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off);
2607
2608 local_got_offsets[r_symndx] |= 1;
2609 }
2610 }
2611
2612 if (off >= (bfd_vma) -2)
2613 abort ();
2614
2615 if (htab->dsbt)
2616 relocation = (htab->elf.sgot->output_section->vma
2617 + htab->elf.sgot->output_offset + off
2618 - htab->dsbt->output_section->vma
2619 - htab->dsbt->output_offset);
2620 else
2621 relocation = (htab->elf.sgot->output_section->vma
2622 + htab->elf.sgot->output_offset + off
2623 - htab->elf.sgotplt->output_section->vma
2624 - htab->elf.sgotplt->output_offset);
2625
2626 if (rel->r_addend != 0)
2627 {
2628 /* We can't do anything for a relocation which is against
2629 a symbol *plus offset*. GOT holds relocations for
2630 symbols. Make this an error; the compiler isn't
2631 allowed to pass us these kinds of things. */
2632 if (h == NULL)
4eca0228 2633 _bfd_error_handler
695344c0 2634 /* xgettext:c-format */
ac145307
BS		 2635 (_("%B, section %A: relocation %s with non-zero addend %d"
2636 " against local symbol"),
2637 input_bfd,
2638 input_section,
2639 elf32_tic6x_howto_table[r_type].name,
2640 rel->r_addend);
2641 else
4eca0228 2642 _bfd_error_handler
695344c0 2643 /* xgettext:c-format */
ac145307
BS		 2644 (_("%B, section %A: relocation %s with non-zero addend %d"
2645 " against symbol `%s'"),
2646 input_bfd,
2647 input_section,
2648 elf32_tic6x_howto_table[r_type].name,
2649 rel->r_addend,
2650 h->root.root.string[0] != '\0' ? h->root.root.string
2651 : _("[whose name is lost]"));
2652
2653 bfd_set_error (bfd_error_bad_value);
2654 return FALSE;
2655 }
2656 break;
2657
40b36596 2658 case R_C6000_PREL31:
44e87ece
PB		 2659 if (h != NULL
2660 && h->plt.offset != (bfd_vma) -1
2661 && htab->elf.splt != NULL)
2662 {
2663 relocation = (htab->elf.splt->output_section->vma
2664 + htab->elf.splt->output_offset
2665 + h->plt.offset);
2666 }
2667 break;
40b36596
JM		 2668
2669 case R_C6000_COPY:
2670 /* Invalid in relocatable object. */
2671 default:
2672 /* Unknown relocation. */
695344c0 2673 /* xgettext:c-format */
4eca0228
AM		 2674 _bfd_error_handler (_("%B: invalid relocation type %d"),
2675 input_bfd, r_type);
40b36596
JM		 2676 ok = FALSE;
2677 continue;
2678 }
2679
2680 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2681 contents, rel->r_offset,
2682 relocation, rel->r_addend);
2683
41820509 2684 done_reloc:
40b36596
JM		 2685 if (r == bfd_reloc_ok
2686 && howto->complain_on_overflow == complain_overflow_bitfield)
2687 {
2688 /* Generic overflow handling accepts cases the ABI says
2689 should be rejected for R_C6000_ABS16 and
2690 R_C6000_ABS8. */
2691 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
2692 bfd_vma sbit = 1 << (howto->bitsize - 1);
2693 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
2694 bfd_vma value_sbits = value & sbits;
2695
2696 if (value_sbits != 0
2697 && value_sbits != sbit
2698 && value_sbits != sbits)
2699 r = bfd_reloc_overflow;
2700 }
2701
2702 if (r != bfd_reloc_ok)
2703 {
2704 const char *name;
2705 const char *error_message;
2706
2707 if (h != NULL)
2708 name = h->root.root.string;
2709 else
2710 {
2711 name = bfd_elf_string_from_elf_section (input_bfd,
2712 symtab_hdr->sh_link,
2713 sym->st_name);
2714 if (name == NULL)
2715 return FALSE;
2716 if (*name == '\0')
2717 name = bfd_section_name (input_bfd, sec);
2718 }
2719
2720 switch (r)
2721 {
2722 case bfd_reloc_overflow:
2723 /* If the overflowing reloc was to an undefined symbol,
2724 we have already printed one error message and there
2725 is no point complaining again. */
1a72702b
AM		 2726 if (!h || h->root.type != bfd_link_hash_undefined)
2727 (*info->callbacks->reloc_overflow)
2728 (info, (h ? &h->root : NULL), name, howto->name,
2729 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
40b36596
JM		 2730 break;
2731
2732 case bfd_reloc_undefined:
1a72702b
AM		 2733 (*info->callbacks->undefined_symbol) (info, name, input_bfd,
2734 input_section,
2735 rel->r_offset, TRUE);
40b36596
JM		 2736 break;
2737
2738 case bfd_reloc_outofrange:
2739 error_message = _("out of range");
2740 goto common_error;
2741
2742 case bfd_reloc_notsupported:
2743 error_message = _("unsupported relocation");
2744 goto common_error;
2745
2746 case bfd_reloc_dangerous:
2747 error_message = _("dangerous relocation");
2748 goto common_error;
2749
2750 default:
2751 error_message = _("unknown error");
2752 /* Fall through. */
2753
2754 common_error:
2755 BFD_ASSERT (error_message != NULL);
1a72702b
AM		 2756 (*info->callbacks->reloc_dangerous)
2757 (info, error_message, input_bfd, input_section, rel->r_offset);
40b36596
JM		 2758 break;
2759 }
2760 }
2761 }
2762
2763 return ok;
2764}
2765
ac145307
BS		 2766\f
2767/* Look through the relocs for a section during the first phase, and
2768 calculate needed space in the global offset table, procedure linkage
2769 table, and dynamic reloc sections. */
2770
2771static bfd_boolean
2772elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info,
2773 asection *sec, const Elf_Internal_Rela *relocs)
2774{
2775 struct elf32_tic6x_link_hash_table *htab;
2776 Elf_Internal_Shdr *symtab_hdr;
2777 struct elf_link_hash_entry **sym_hashes;
2778 const Elf_Internal_Rela *rel;
2779 const Elf_Internal_Rela *rel_end;
2780 asection *sreloc;
2781
0e1862bb 2782 if (bfd_link_relocatable (info))
ac145307
BS		 2783 return TRUE;
2784
2785 htab = elf32_tic6x_hash_table (info);
2786 symtab_hdr = &elf_symtab_hdr (abfd);
2787 sym_hashes = elf_sym_hashes (abfd);
2788
2789 /* Create dynamic sections for relocatable executables so that we can
2790 copy relocations. */
0e1862bb 2791 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
ac145307
BS		 2792 && ! htab->elf.dynamic_sections_created)
2793 {
2794 if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
2795 return FALSE;
2796 }
2797
2798 sreloc = NULL;
2799
2800 rel_end = relocs + sec->reloc_count;
2801 for (rel = relocs; rel < rel_end; rel++)
2802 {
2803 unsigned int r_type;
2804 unsigned long r_symndx;
2805 struct elf_link_hash_entry *h;
2806 Elf_Internal_Sym *isym;
2807
2808 r_symndx = ELF32_R_SYM (rel->r_info);
2809 r_type = ELF32_R_TYPE (rel->r_info);
2810
2811 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
2812 {
695344c0 2813 /* xgettext:c-format */
4eca0228
AM		 2814 _bfd_error_handler (_("%B: bad symbol index: %d"),
2815 abfd, r_symndx);
ac145307
BS		 2816 return FALSE;
2817 }
2818
2819 if (r_symndx < symtab_hdr->sh_info)
2820 {
2821 /* A local symbol. */
2822 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2823 abfd, r_symndx);
2824 if (isym == NULL)
2825 return FALSE;
2826 h = NULL;
2827 }
2828 else
2829 {
2830 isym = NULL;
2831 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2832 while (h->root.type == bfd_link_hash_indirect
2833 || h->root.type == bfd_link_hash_warning)
2834 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 2835
2836 /* PR15323, ref flags aren't set for references in the same
2837 object. */
2838 h->root.non_ir_ref = 1;
ac145307
BS		 2839 }
2840
2841 switch (r_type)
2842 {
2843 case R_C6000_PCR_S21:
44e87ece 2844 case R_C6000_PREL31:
ac145307
BS		 2845 /* This symbol requires a procedure linkage table entry. We
2846 actually build the entry in adjust_dynamic_symbol,
2847 because this might be a case of linking PIC code which is
2848 never referenced by a dynamic object, in which case we
2849 don't need to generate a procedure linkage table entry
2850 after all. */
2851
2852 /* If this is a local symbol, we resolve it directly without
2853 creating a procedure linkage table entry. */
2854 if (h == NULL)
2855 continue;
2856
2857 h->needs_plt = 1;
2858 h->plt.refcount += 1;
2859 break;
2860
2861 case R_C6000_SBR_GOT_U15_W:
2862 case R_C6000_SBR_GOT_L16_W:
2863 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2864 case R_C6000_EHTYPE:
ac145307
BS		 2865 /* This symbol requires a global offset table entry. */
2866 if (h != NULL)
2867 {
2868 h->got.refcount += 1;
2869 }
2870 else
2871 {
2872 bfd_signed_vma *local_got_refcounts;
2873
2874 /* This is a global offset table entry for a local symbol. */
2875 local_got_refcounts = elf_local_got_refcounts (abfd);
2876 if (local_got_refcounts == NULL)
2877 {
2878 bfd_size_type size;
2879
2880 size = symtab_hdr->sh_info;
2881 size *= (sizeof (bfd_signed_vma)
2882 + sizeof (bfd_vma) + sizeof(char));
2883 local_got_refcounts = bfd_zalloc (abfd, size);
2884 if (local_got_refcounts == NULL)
2885 return FALSE;
2886 elf_local_got_refcounts (abfd) = local_got_refcounts;
2887 }
2888 local_got_refcounts[r_symndx] += 1;
2889 }
2890
2891 if (htab->elf.sgot == NULL)
2892 {
2893 if (htab->elf.dynobj == NULL)
2894 htab->elf.dynobj = abfd;
2895 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
2896 return FALSE;
2897 }
2898 break;
2899
2900 case R_C6000_DSBT_INDEX:
2901 /* We'd like to check for nonzero dsbt_index here, but it's
2902 set up only after check_relocs is called. Instead, we
2903 store the number of R_C6000_DSBT_INDEX relocs in the
2904 pc_count field, and potentially discard the extra space
2905 in elf32_tic6x_allocate_dynrelocs. */
0e1862bb 2906 if (!bfd_link_pic (info))
ac145307
BS		 2907 break;
2908
2909 /* fall through */
2910 case R_C6000_ABS32:
2911 case R_C6000_ABS16:
2912 case R_C6000_ABS8:
2913 case R_C6000_ABS_S16:
2914 case R_C6000_ABS_L16:
2915 case R_C6000_ABS_H16:
2916 /* If we are creating a shared library, and this is a reloc
2917 against a global symbol, or a non PC relative reloc
2918 against a local symbol, then we need to copy the reloc
2919 into the shared library. However, if we are linking with
2920 -Bsymbolic, we do not need to copy a reloc against a
2921 global symbol which is defined in an object we are
2922 including in the link (i.e., DEF_REGULAR is set). At
2923 this point we have not seen all the input files, so it is
2924 possible that DEF_REGULAR is not set now but will be set
2925 later (it is never cleared). In case of a weak definition,
2926 DEF_REGULAR may be cleared later by a strong definition in
2927 a shared library. We account for that possibility below by
2928 storing information in the relocs_copied field of the hash
2929 table entry. A similar situation occurs when creating
2930 shared libraries and symbol visibility changes render the
2931 symbol local.
2932
2933 If on the other hand, we are creating an executable, we
2934 may need to keep relocations for symbols satisfied by a
2935 dynamic library if we manage to avoid copy relocs for the
2936 symbol. */
0e1862bb 2937 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
ac145307
BS		 2938 && (sec->flags & SEC_ALLOC) != 0)
2939 {
2940 struct elf_dyn_relocs *p;
2941 struct elf_dyn_relocs **head;
2942
2943 /* We must copy these reloc types into the output file.
2944 Create a reloc section in dynobj and make room for
2945 this reloc. */
2946 if (sreloc == NULL)
2947 {
2948 if (htab->elf.dynobj == NULL)
2949 htab->elf.dynobj = abfd;
2950
2951 sreloc = _bfd_elf_make_dynamic_reloc_section
2952 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE);
2953
2954 if (sreloc == NULL)
2955 return FALSE;
2956 }
2957
2958 /* If this is a global symbol, we count the number of
2959 relocations we need for this symbol. */
2960 if (h != NULL)
2961 {
2962 head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs;
2963 }
2964 else
2965 {
2966 /* Track dynamic relocs needed for local syms too.
2967 We really need local syms available to do this
2968 easily. Oh well. */
2969 void **vpp;
2970 asection *s;
2971
2972 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2973 if (s == NULL)
2974 s = sec;
2975
2976 vpp = &elf_section_data (s)->local_dynrel;
2977 head = (struct elf_dyn_relocs **)vpp;
2978 }
2979
2980 p = *head;
2981 if (p == NULL || p->sec != sec)
2982 {
2983 bfd_size_type amt = sizeof *p;
2984 p = bfd_alloc (htab->elf.dynobj, amt);
2985 if (p == NULL)
2986 return FALSE;
2987 p->next = *head;
2988 *head = p;
2989 p->sec = sec;
2990 p->count = 0;
2123f9ad 2991 p->pc_count = 0;
ac145307
BS		 2992 }
2993
2994 p->count += 1;
2995 if (r_type == R_C6000_DSBT_INDEX)
2996 p->pc_count += 1;
2997 }
2998 break;
2999
3000 case R_C6000_SBR_U15_B:
3001 case R_C6000_SBR_U15_H:
3002 case R_C6000_SBR_U15_W:
3003 case R_C6000_SBR_S16:
3004 case R_C6000_SBR_L16_B:
3005 case R_C6000_SBR_L16_H:
3006 case R_C6000_SBR_L16_W:
3007 case R_C6000_SBR_H16_B:
3008 case R_C6000_SBR_H16_H:
3009 case R_C6000_SBR_H16_W:
0e1862bb 3010 if (h != NULL && bfd_link_executable (info))
ac145307
BS		 3011 {
3012 /* For B14-relative addresses, we might need a copy
3013 reloc. */
3014 h->non_got_ref = 1;
3015 }
3016 break;
3017
3018 default:
3019 break;
3020 }
3021 }
3022
3023 return TRUE;
3024}
3025
3026static bfd_boolean
3027elf32_tic6x_add_symbol_hook (bfd *abfd,
3028 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3029 Elf_Internal_Sym *sym,
3030 const char **namep ATTRIBUTE_UNUSED,
3031 flagword *flagsp ATTRIBUTE_UNUSED,
3032 asection **secp,
3033 bfd_vma *valp)
3034{
3035 switch (sym->st_shndx)
3036 {
3037 case SHN_TIC6X_SCOMMON:
3038 *secp = bfd_make_section_old_way (abfd, ".scommon");
3039 (*secp)->flags |= SEC_IS_COMMON;
3040 *valp = sym->st_size;
a253d456 3041 (void) bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value));
ac145307
BS		 3042 break;
3043 }
3044
3045 return TRUE;
3046}
3047
3048static void
3049elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
3050{
3051 elf_symbol_type *elfsym;
3052
3053 elfsym = (elf_symbol_type *) asym;
3054 switch (elfsym->internal_elf_sym.st_shndx)
3055 {
3056 case SHN_TIC6X_SCOMMON:
3057 if (tic6x_elf_scom_section.name == NULL)
3058 {
3059 /* Initialize the small common section. */
3060 tic6x_elf_scom_section.name = ".scommon";
3061 tic6x_elf_scom_section.flags = SEC_IS_COMMON;
3062 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section;
3063 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol;
3064 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr;
3065 tic6x_elf_scom_symbol.name = ".scommon";
3066 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM;
3067 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section;
3068 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol;
3069 }
3070 asym->section = &tic6x_elf_scom_section;
3071 asym->value = elfsym->internal_elf_sym.st_size;
3072 break;
3073 }
3074}
3075
3076static int
3077elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3078 const char *name ATTRIBUTE_UNUSED,
3079 Elf_Internal_Sym *sym,
3080 asection *input_sec,
3081 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3082{
3083 /* If we see a common symbol, which implies a relocatable link, then
3084 if a symbol was small common in an input file, mark it as small
3085 common in the output file. */
3086 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
3087 sym->st_shndx = SHN_TIC6X_SCOMMON;
3088
3089 return 1;
3090}
3091
3092static bfd_boolean
3093elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
3094 asection *sec,
3095 int *retval)
3096{
3097 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3098 {
3099 *retval = SHN_TIC6X_SCOMMON;
3100 return TRUE;
3101 }
3102
3103 return FALSE;
3104}
3105
3106/* Allocate space in .plt, .got and associated reloc sections for
3107 dynamic relocs. */
3108
3109static bfd_boolean
3110elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3111{
3112 struct bfd_link_info *info;
3113 struct elf32_tic6x_link_hash_table *htab;
3114 struct elf32_tic6x_link_hash_entry *eh;
3115 struct elf_dyn_relocs *p;
3116
3117 if (h->root.type == bfd_link_hash_indirect)
3118 return TRUE;
3119
ac145307 3120 eh = (struct elf32_tic6x_link_hash_entry *) h;
ac145307
BS		 3121 info = (struct bfd_link_info *) inf;
3122 htab = elf32_tic6x_hash_table (info);
3123
3124 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0)
3125 {
3126 /* Make sure this symbol is output as a dynamic symbol.
3127 Undefined weak syms won't yet be marked as dynamic. */
3128 if (h->dynindx == -1 && !h->forced_local)
3129 {
3130 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3131 return FALSE;
3132 }
3133
0e1862bb 3134 if (bfd_link_pic (info)
ac145307
BS		 3135 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
3136 {
3137 asection *s = htab->elf.splt;
3138
3139 /* If this is the first .plt entry, make room for the special
3140 first entry. */
3141 if (s->size == 0)
3142 s->size += PLT_ENTRY_SIZE;
3143
3144 h->plt.offset = s->size;
3145
3146 /* If this symbol is not defined in a regular file, and we are
3147 not generating a shared library, then set the symbol to this
3148 location in the .plt. This is required to make function
3149 pointers compare as equal between the normal executable and
3150 the shared library. */
0e1862bb 3151 if (! bfd_link_pic (info) && !h->def_regular)
ac145307
BS		 3152 {
3153 h->root.u.def.section = s;
3154 h->root.u.def.value = h->plt.offset;
3155 }
3156
3157 /* Make room for this entry. */
3158 s->size += PLT_ENTRY_SIZE;
3159 /* We also need to make an entry in the .got.plt section, which
3160 will be placed in the .got section by the linker script. */
3161 htab->elf.sgotplt->size += 4;
3162 /* We also need to make an entry in the .rel.plt section. */
3163 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
3164 }
3165 else
3166 {
3167 h->plt.offset = (bfd_vma) -1;
3168 h->needs_plt = 0;
3169 }
3170 }
3171 else
3172 {
3173 h->plt.offset = (bfd_vma) -1;
3174 h->needs_plt = 0;
3175 }
3176
3177 if (h->got.refcount > 0)
3178 {
3179 asection *s;
3180
3181 /* Make sure this symbol is output as a dynamic symbol.
3182 Undefined weak syms won't yet be marked as dynamic. */
3183 if (h->dynindx == -1
3184 && !h->forced_local)
3185 {
3186 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3187 return FALSE;
3188 }
3189
3190 s = htab->elf.sgot;
3191 h->got.offset = s->size;
3192 s->size += 4;
3193
3194 if (!(ELF_ST_VISIBILITY (h->other)
3195 && h->root.type == bfd_link_hash_undefweak))
3196 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3197 }
3198 else
3199 h->got.offset = (bfd_vma) -1;
3200
3201 if (eh->dyn_relocs == NULL)
3202 return TRUE;
3203
3204 /* Discard relocs on undefined weak syms with non-default
3205 visibility. */
0e1862bb 3206 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (htab->obfd))
ac145307
BS		 3207 {
3208 /* We use the pc_count field to hold the number of
3209 R_C6000_DSBT_INDEX relocs. */
3210 if (htab->params.dsbt_index != 0)
3211 {
3212 struct elf_dyn_relocs **pp;
3213
3214 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3215 {
3216 p->count -= p->pc_count;
3217 p->pc_count = 0;
3218 if (p->count == 0)
3219 *pp = p->next;
3220 else
3221 pp = &p->next;
3222 }
3223 }
3224
3225 if (eh->dyn_relocs != NULL
3226 && h->root.type == bfd_link_hash_undefweak)
3227 {
3228 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3229 eh->dyn_relocs = NULL;
3230
3231 /* Make sure undefined weak symbols are output as a dynamic
3232 symbol in PIEs. */
3233 else if (h->dynindx == -1
3234 && !h->forced_local)
3235 {
3236 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3237 return FALSE;
3238 }
3239 }
3240 }
3241
3242 /* Finally, allocate space. */
3243 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3244 {
3245 asection *sreloc;
3246
3247 sreloc = elf_section_data (p->sec)->sreloc;
3248
3249 BFD_ASSERT (sreloc != NULL);
3250 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3251 }
3252
3253 return TRUE;
3254}
3255
3256/* Find any dynamic relocs that apply to read-only sections. */
3257
3258static bfd_boolean
3259elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3260{
3261 struct elf32_tic6x_link_hash_entry *eh;
3262 struct elf_dyn_relocs *p;
3263
ac145307
BS		 3264 eh = (struct elf32_tic6x_link_hash_entry *) h;
3265 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3266 {
3267 asection *s = p->sec->output_section;
3268
3269 if (s != NULL && (s->flags & SEC_READONLY) != 0)
3270 {
3271 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3272
3273 info->flags |= DF_TEXTREL;
3274
3275 /* Not an error, just cut short the traversal. */
3276 return FALSE;
3277 }
3278 }
3279 return TRUE;
3280}
3281
3282/* Set the sizes of the dynamic sections. */
3283
3284static bfd_boolean
3285elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3286{
3287 struct elf32_tic6x_link_hash_table *htab;
3288 bfd *dynobj;
3289 asection *s;
3290 bfd_boolean relocs;
3291 bfd *ibfd;
3292
3293 htab = elf32_tic6x_hash_table (info);
3294 dynobj = htab->elf.dynobj;
3295 if (dynobj == NULL)
3296 abort ();
3297
3298 if (htab->elf.dynamic_sections_created)
3299 {
3300 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 3301 if (bfd_link_executable (info) && !info->nointerp)
ac145307 3302 {
3d4d4302 3303 s = bfd_get_linker_section (dynobj, ".interp");
ac145307
BS		 3304 if (s == NULL)
3305 abort ();
3306 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3307 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3308 }
3309 }
3310
3311 /* Set up .got offsets for local syms, and space for local dynamic
3312 relocs. */
c72f2fb2 3313 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
ac145307
BS		 3314 {
3315 bfd_signed_vma *local_got;
3316 bfd_signed_vma *end_local_got;
ac145307
BS		 3317 bfd_size_type locsymcount;
3318 Elf_Internal_Shdr *symtab_hdr;
3319 asection *srel;
3320
3321 for (s = ibfd->sections; s != NULL; s = s->next)
3322 {
3323 struct elf_dyn_relocs *p;
3324
3325 for (p = ((struct elf_dyn_relocs *)
3326 elf_section_data (s)->local_dynrel);
3327 p != NULL;
3328 p = p->next)
3329 {
3330 if (!bfd_is_abs_section (p->sec)
3331 && bfd_is_abs_section (p->sec->output_section))
3332 {
3333 /* Input section has been discarded, either because
3334 it is a copy of a linkonce section or due to
3335 linker script /DISCARD/, so we'll be discarding
3336 the relocs too. */
3337 }
3338 else if (p->count != 0)
3339 {
3340 srel = elf_section_data (p->sec)->sreloc;
3341 srel->size += p->count * sizeof (Elf32_External_Rela);
3342 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3343 info->flags |= DF_TEXTREL;
3344 }
3345 }
3346 }
3347
3348 local_got = elf_local_got_refcounts (ibfd);
3349 if (!local_got)
3350 continue;
3351
3352 symtab_hdr = &elf_symtab_hdr (ibfd);
3353 locsymcount = symtab_hdr->sh_info;
3354 end_local_got = local_got + locsymcount;
3355 s = htab->elf.sgot;
3356 srel = htab->elf.srelgot;
544008aa 3357 for (; local_got < end_local_got; ++local_got)
ac145307
BS		 3358 {
3359 if (*local_got > 0)
3360 {
3361 *local_got = s->size;
3362 s->size += 4;
3363
0e1862bb 3364 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
ac145307
BS		 3365 {
3366 srel->size += sizeof (Elf32_External_Rela);
3367 }
3368 }
3369 else
3370 *local_got = (bfd_vma) -1;
3371 }
3372 }
3373
3374 /* Allocate global sym .plt and .got entries, and space for global
3375 sym dynamic relocs. */
3376 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info);
3377
3378 /* We now have determined the sizes of the various dynamic sections.
3379 Allocate memory for them. */
3380 relocs = FALSE;
3381 for (s = dynobj->sections; s != NULL; s = s->next)
3382 {
3383 bfd_boolean strip_section = TRUE;
3384
3385 if ((s->flags & SEC_LINKER_CREATED) == 0)
3386 continue;
3387
3388 if (s == htab->dsbt)
3389 s->size = 4 * htab->params.dsbt_size;
3390 else if (s == htab->elf.splt
3391 || s == htab->elf.sgot
3392 || s == htab->elf.sgotplt
5474d94f
AM		 3393 || s == htab->elf.sdynbss
3394 || s == htab->elf.sdynrelro)
ac145307
BS		 3395 {
3396 /* Strip this section if we don't need it; see the
3397 comment below. */
3398 /* We'd like to strip these sections if they aren't needed, but if
3399 we've exported dynamic symbols from them we must leave them.
3400 It's too late to tell BFD to get rid of the symbols. */
3401
3402 if (htab->elf.hplt != NULL)
3403 strip_section = FALSE;
3404
3405 /* Round up the size of the PLT section to a multiple of 32. */
3406 if (s == htab->elf.splt && s->size > 0)
3407 s->size = (s->size + 31) & ~(bfd_vma)31;
3408 }
3409 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
3410 {
3411 if (s->size != 0
3412 && s != htab->elf.srelplt)
3413 relocs = TRUE;
3414
3415 /* We use the reloc_count field as a counter if we need
3416 to copy relocs into the output file. */
3417 s->reloc_count = 0;
3418 }
3419 else
3420 {
3421 /* It's not one of our sections, so don't allocate space. */
3422 continue;
3423 }
3424
3425 if (s->size == 0)
3426 {
3427 /* If we don't need this section, strip it from the
3428 output file. This is mostly to handle .rel.bss and
3429 .rel.plt. We must create both sections in
3430 create_dynamic_sections, because they must be created
3431 before the linker maps input sections to output
3432 sections. The linker does that before
3433 adjust_dynamic_symbol is called, and it is that
3434 function which decides whether anything needs to go
3435 into these sections. */
3436 if (strip_section)
3437 s->flags |= SEC_EXCLUDE;
3438 continue;
3439 }
3440
3441 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3442 continue;
3443
3444 /* Allocate memory for the section contents. We use bfd_zalloc
3445 here in case unused entries are not reclaimed before the
3446 section's contents are written out. This should not happen,
3447 but this way if it does, we get a R_C6000_NONE reloc instead
3448 of garbage. */
3449 s->contents = bfd_zalloc (dynobj, s->size);
3450 if (s->contents == NULL)
3451 return FALSE;
3452 }
3453
3454 if (htab->elf.dynamic_sections_created)
3455 {
3456 /* Add some entries to the .dynamic section. We fill in the
3457 values later, in elf32_tic6x_finish_dynamic_sections, but we
3458 must add the entries now so that we get the correct size for
3459 the .dynamic section. The DT_DEBUG entry is filled in by the
3460 dynamic linker and used by the debugger. */
3461#define add_dynamic_entry(TAG, VAL) \
3462 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3463
0e1862bb 3464 if (bfd_link_executable (info))
ac145307
BS		 3465 {
3466 if (!add_dynamic_entry (DT_DEBUG, 0))
3467 return FALSE;
3468 }
3469
3470 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0)
3471 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size)
3472 || !add_dynamic_entry (DT_C6000_DSBT_INDEX,
3473 htab->params.dsbt_index))
3474 return FALSE;
3475
3476 if (htab->elf.splt->size != 0)
3477 {
3478 if (!add_dynamic_entry (DT_PLTGOT, 0)
3479 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3480 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3481 || !add_dynamic_entry (DT_JMPREL, 0))
3482 return FALSE;
3483 }
3484
3485 if (relocs)
3486 {
3487 if (!add_dynamic_entry (DT_RELA, 0)
3488 || !add_dynamic_entry (DT_RELASZ, 0)
3489 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3490 return FALSE;
3491
3492 /* If any dynamic relocs apply to a read-only section,
3493 then we need a DT_TEXTREL entry. */
3494 if ((info->flags & DF_TEXTREL) == 0)
3495 elf_link_hash_traverse (&htab->elf,
3496 elf32_tic6x_readonly_dynrelocs, info);
3497
3498 if ((info->flags & DF_TEXTREL) != 0)
3499 {
3500 if (!add_dynamic_entry (DT_TEXTREL, 0))
3501 return FALSE;
3502 }
3503 }
3504 }
3505#undef add_dynamic_entry
3506
3507 return TRUE;
3508}
3509
3510/* This function is called after all the input files have been read,
3511 and the input sections have been assigned to output sections. */
3512
3513static bfd_boolean
3514elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
3515{
0e1862bb 3516 if (elf32_tic6x_using_dsbt (output_bfd) && !bfd_link_relocatable (info)
04c3a755
NS		 3517 && !bfd_elf_stack_segment_size (output_bfd, info,
3518 "__stacksize", DEFAULT_STACK_SIZE))
3519 return FALSE;
ac145307
BS		 3520
3521 return TRUE;
3522}
3523
3524static bfd_boolean
3525elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3526 struct bfd_link_info *info)
3527{
3528 struct elf32_tic6x_link_hash_table *htab;
3529 bfd *dynobj;
3530 asection *sdyn;
3531
3532 htab = elf32_tic6x_hash_table (info);
3533 dynobj = htab->elf.dynobj;
3d4d4302 3534 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
ac145307
BS		 3535
3536 if (elf_hash_table (info)->dynamic_sections_created)
3537 {
3538 Elf32_External_Dyn * dyncon;
3539 Elf32_External_Dyn * dynconend;
3540
3541 BFD_ASSERT (sdyn != NULL);
3542
3543 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3544 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3545
3546 for (; dyncon < dynconend; dyncon++)
3547 {
3548 Elf_Internal_Dyn dyn;
3549 asection *s;
3550
3551 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3552
3553 switch (dyn.d_tag)
3554 {
3555 default:
3556 break;
3557
3558 case DT_C6000_DSBT_BASE:
3559 s = htab->dsbt;
3560 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset);
3561 break;
3562
3563 case DT_PLTGOT:
3564 s = htab->elf.sgotplt;
3565 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3566 break;
3567
3568 case DT_JMPREL:
3569 s = htab->elf.srelplt;
3570 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3571 break;
3572
3573 case DT_PLTRELSZ:
3574 s = htab->elf.srelplt;
3575 dyn.d_un.d_val = s->size;
3576 break;
3577 }
3578 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3579 }
3580
3581 /* Fill in the first entry in the procedure linkage table. */
3582 if (htab->elf.splt && htab->elf.splt->size > 0)
3583 {
3584 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma
3585 + htab->elf.sgotplt->output_offset
3586 - htab->dsbt->output_section->vma
3587 - htab->dsbt->output_offset) / 4;
3588
3589 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3590 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e,
3591 htab->elf.splt->contents);
3592 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3593 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e,
3594 htab->elf.splt->contents + 4);
3595 /* nop 3 */
3596 bfd_put_32 (output_bfd, 0x00004000,
3597 htab->elf.splt->contents + 8);
3598 /* b .s2 b2 */
3599 bfd_put_32 (output_bfd, 0x00080362,
3600 htab->elf.splt->contents + 12);
3601 /* nop 5 */
3602 bfd_put_32 (output_bfd, 0x00008000,
3603 htab->elf.splt->contents + 16);
3604
3605 elf_section_data (htab->elf.splt->output_section)
3606 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3607 }
3608 }
3609
3610 return TRUE;
3611}
3612
3613/* Return address for Ith PLT stub in section PLT, for relocation REL
3614 or (bfd_vma) -1 if it should not be included. */
3615
3616static bfd_vma
3617elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt,
3618 const arelent *rel ATTRIBUTE_UNUSED)
3619{
3620 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3621}
3622
3623static int
3624elf32_tic6x_obj_attrs_arg_type (int tag)
59e6276b 3625{
3cbd1c06 3626 if (tag == Tag_ABI_compatibility)
59e6276b 3627 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
87779176
JM		 3628 else if (tag & 1)
3629 return ATTR_TYPE_FLAG_STR_VAL;
59e6276b 3630 else
59e6276b
JM		 3631 return ATTR_TYPE_FLAG_INT_VAL;
3632}
3633
87779176
JM		 3634static int
3635elf32_tic6x_obj_attrs_order (int num)
3636{
3637 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
3638 return Tag_ABI_conformance;
3639 if ((num - 1) < Tag_ABI_conformance)
3640 return num - 1;
3641 return num;
3642}
3643
0547accf
JM		 3644static bfd_boolean
3645elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
3646{
3647 if ((tag & 127) < 64)
3648 {
3649 _bfd_error_handler
695344c0 3650 /* xgettext:c-format */
0547accf
JM		 3651 (_("%B: error: unknown mandatory EABI object attribute %d"),
3652 abfd, tag);
3653 bfd_set_error (bfd_error_bad_value);
3654 return FALSE;
3655 }
3656 else
3657 {
3658 _bfd_error_handler
695344c0 3659 /* xgettext:c-format */
0547accf
JM		 3660 (_("%B: warning: unknown EABI object attribute %d"),
3661 abfd, tag);
3662 return TRUE;
3663 }
3664}
3665
75fa6dc1 3666/* Merge the Tag_ISA attribute values ARCH1 and ARCH2
59e6276b
JM		 3667 and return the merged value. At present, all merges succeed, so no
3668 return value for errors is defined. */
3669
3670int
3671elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
3672{
3673 int min_arch, max_arch;
3674
3675 min_arch = (arch1 < arch2 ? arch1 : arch2);
3676 max_arch = (arch1 > arch2 ? arch1 : arch2);
3677
3678 /* In most cases, the numerically greatest value is the correct
3679 merged value, but merging C64 and C67 results in C674X. */
75fa6dc1
JM		 3680 if ((min_arch == C6XABI_Tag_ISA_C67X
3681 || min_arch == C6XABI_Tag_ISA_C67XP)
3682 && (max_arch == C6XABI_Tag_ISA_C64X
3683 || max_arch == C6XABI_Tag_ISA_C64XP))
3684 return C6XABI_Tag_ISA_C674X;
59e6276b
JM		 3685
3686 return max_arch;
3687}
3688
87779176
JM		 3689/* Convert a Tag_ABI_array_object_alignment or
3690 Tag_ABI_array_object_align_expected tag value TAG to a
3691 corresponding alignment value; return the alignment, or -1 for an
3692 unknown tag value. */
3693
3694static int
3695elf32_tic6x_tag_to_array_alignment (int tag)
3696{
3697 switch (tag)
3698 {
3699 case 0:
3700 return 8;
3701
3702 case 1:
3703 return 4;
3704
3705 case 2:
3706 return 16;
3707
3708 default:
3709 return -1;
3710 }
3711}
3712
3713/* Convert a Tag_ABI_array_object_alignment or
3714 Tag_ABI_array_object_align_expected alignment ALIGN to a
3715 corresponding tag value; return the tag value. */
3716
3717static int
3718elf32_tic6x_array_alignment_to_tag (int align)
3719{
3720 switch (align)
3721 {
3722 case 8:
3723 return 0;
3724
3725 case 4:
3726 return 1;
3727
3728 case 16:
3729 return 2;
3730
3731 default:
3732 abort ();
3733 }
3734}
3735
59e6276b
JM		 3736/* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3737 succeeded, FALSE otherwise. */
3738
3739static bfd_boolean
50e03d47 3740elf32_tic6x_merge_attributes (bfd *ibfd, struct bfd_link_info *info)
59e6276b 3741{
50e03d47 3742 bfd *obfd = info->output_bfd;
87779176 3743 bfd_boolean result = TRUE;
59e6276b
JM		 3744 obj_attribute *in_attr;
3745 obj_attribute *out_attr;
87779176
JM		 3746 int i;
3747 int array_align_in, array_align_out, array_expect_in, array_expect_out;
59e6276b
JM		 3748
3749 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3750 {
3751 /* This is the first object. Copy the attributes. */
3752 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3753
3754 out_attr = elf_known_obj_attributes_proc (obfd);
3755
3756 /* Use the Tag_null value to indicate the attributes have been
3757 initialized. */
3758 out_attr[0].i = 1;
3759
3760 return TRUE;
3761 }
3762
3763 in_attr = elf_known_obj_attributes_proc (ibfd);
3764 out_attr = elf_known_obj_attributes_proc (obfd);
3765
3766 /* No specification yet for handling of unknown attributes, so just
3767 ignore them and handle known ones. */
59e6276b 3768
87779176
JM		 3769 if (out_attr[Tag_ABI_stack_align_preserved].i
3770 < in_attr[Tag_ABI_stack_align_needed].i)
3771 {
3772 _bfd_error_handler
695344c0 3773 /* xgettext:c-format */
87779176
JM		 3774 (_("error: %B requires more stack alignment than %B preserves"),
3775 ibfd, obfd);
3776 result = FALSE;
3777 }
3778 if (in_attr[Tag_ABI_stack_align_preserved].i
3779 < out_attr[Tag_ABI_stack_align_needed].i)
3780 {
3781 _bfd_error_handler
695344c0 3782 /* xgettext:c-format */
87779176
JM		 3783 (_("error: %B requires more stack alignment than %B preserves"),
3784 obfd, ibfd);
3785 result = FALSE;
3786 }
3787
3788 array_align_in = elf32_tic6x_tag_to_array_alignment
3789 (in_attr[Tag_ABI_array_object_alignment].i);
3790 if (array_align_in == -1)
3791 {
3792 _bfd_error_handler
3793 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3794 ibfd);
3795 result = FALSE;
3796 }
3797 array_align_out = elf32_tic6x_tag_to_array_alignment
3798 (out_attr[Tag_ABI_array_object_alignment].i);
3799 if (array_align_out == -1)
3800 {
3801 _bfd_error_handler
3802 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3803 obfd);
3804 result = FALSE;
3805 }
3806 array_expect_in = elf32_tic6x_tag_to_array_alignment
3807 (in_attr[Tag_ABI_array_object_align_expected].i);
3808 if (array_expect_in == -1)
3809 {
3810 _bfd_error_handler
3811 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3812 ibfd);
3813 result = FALSE;
3814 }
3815 array_expect_out = elf32_tic6x_tag_to_array_alignment
3816 (out_attr[Tag_ABI_array_object_align_expected].i);
3817 if (array_expect_out == -1)
3818 {
3819 _bfd_error_handler
3820 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3821 obfd);
3822 result = FALSE;
3823 }
3824
3825 if (array_align_out < array_expect_in)
3826 {
3827 _bfd_error_handler
695344c0 3828 /* xgettext:c-format */
87779176
JM		 3829 (_("error: %B requires more array alignment than %B preserves"),
3830 ibfd, obfd);
3831 result = FALSE;
3832 }
3833 if (array_align_in < array_expect_out)
b5593623
JM		 3834 {
3835 _bfd_error_handler
695344c0 3836 /* xgettext:c-format */
87779176 3837 (_("error: %B requires more array alignment than %B preserves"),
b5593623 3838 obfd, ibfd);
87779176 3839 result = FALSE;
b5593623 3840 }
87779176
JM		 3841
3842 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
3843 {
3844 switch (i)
3845 {
3846 case Tag_ISA:
3847 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
3848 out_attr[i].i);
3849 break;
3850
3851 case Tag_ABI_wchar_t:
3852 if (out_attr[i].i == 0)
3853 out_attr[i].i = in_attr[i].i;
3854 if (out_attr[i].i != 0
3855 && in_attr[i].i != 0
3856 && out_attr[i].i != in_attr[i].i)
3857 {
3858 _bfd_error_handler
695344c0 3859 /* xgettext:c-format */
87779176
JM		 3860 (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd);
3861 }
3862 break;
3863
3864 case Tag_ABI_stack_align_needed:
3865 if (out_attr[i].i < in_attr[i].i)
3866 out_attr[i].i = in_attr[i].i;
3867 break;
3868
3869 case Tag_ABI_stack_align_preserved:
3870 if (out_attr[i].i > in_attr[i].i)
3871 out_attr[i].i = in_attr[i].i;
3872 break;
3873
3874 case Tag_ABI_DSBT:
3875 if (out_attr[i].i != in_attr[i].i)
3876 {
3877 _bfd_error_handler
695344c0 3878 /* xgettext:c-format */
87779176
JM		 3879 (_("warning: %B and %B differ in whether code is "
3880 "compiled for DSBT"),
3881 obfd, ibfd);
3882 }
3883 break;
3884
87779176 3885 case Tag_ABI_PIC:
c6a8f6e0
BS		 3886 case Tag_ABI_PID:
3887 if (out_attr[i].i > in_attr[i].i)
3888 out_attr[i].i = in_attr[i].i;
87779176
JM		 3889 break;
3890
3891 case Tag_ABI_array_object_alignment:
3892 if (array_align_out != -1
3893 && array_align_in != -1
3894 && array_align_out > array_align_in)
3895 out_attr[i].i
3896 = elf32_tic6x_array_alignment_to_tag (array_align_in);
3897 break;
3898
3899 case Tag_ABI_array_object_align_expected:
3900 if (array_expect_out != -1
3901 && array_expect_in != -1
3902 && array_expect_out < array_expect_in)
3903 out_attr[i].i
3904 = elf32_tic6x_array_alignment_to_tag (array_expect_in);
3905 break;
3906
3907 case Tag_ABI_conformance:
3908 /* Merging for this attribute is not specified. As on ARM,
3909 treat a missing attribute as no claim to conform and only
3910 merge identical values. */
3911 if (out_attr[i].s == NULL
3912 || in_attr[i].s == NULL
3913 || strcmp (out_attr[i].s,
3914 in_attr[i].s) != 0)
3915 out_attr[i].s = NULL;
3916 break;
3917
0547accf
JM		 3918 case Tag_ABI_compatibility:
3919 /* Merged in _bfd_elf_merge_object_attributes. */
3920 break;
3921
87779176 3922 default:
0547accf
JM		 3923 result
3924 = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
87779176
JM		 3925 break;
3926 }
3927
3928 if (in_attr[i].type && !out_attr[i].type)
3929 out_attr[i].type = in_attr[i].type;
3930 }
3931
3cbd1c06 3932 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
50e03d47 3933 if (!_bfd_elf_merge_object_attributes (ibfd, info))
3cbd1c06 3934 return FALSE;
59e6276b 3935
0547accf
JM		 3936 result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
3937
87779176 3938 return result;
59e6276b
JM		 3939}
3940
3941static bfd_boolean
50e03d47 3942elf32_tic6x_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
59e6276b 3943{
50e03d47 3944 if (!_bfd_generic_verify_endian_match (ibfd, info))
59e6276b
JM		 3945 return FALSE;
3946
50e03d47 3947 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (info->output_bfd))
b781d74f
JM		 3948 return TRUE;
3949
50e03d47 3950 if (!elf32_tic6x_merge_attributes (ibfd, info))
59e6276b
JM		 3951 return FALSE;
3952
3953 return TRUE;
3954}
3955
fbd9ad90
PB		 3956/* Add a new unwind edit to the list described by HEAD, TAIL. If TINDEX is zero,
3957 adds the edit to the start of the list. (The list must be built in order of
3958 ascending TINDEX: the function's callers are primarily responsible for
3959 maintaining that condition). */
3960
3961static void
3962elf32_tic6x_add_unwind_table_edit (tic6x_unwind_table_edit **head,
3963 tic6x_unwind_table_edit **tail,
3964 tic6x_unwind_edit_type type,
3965 asection *linked_section,
3966 unsigned int tindex)
3967{
3968 tic6x_unwind_table_edit *new_edit = (tic6x_unwind_table_edit *)
3969 xmalloc (sizeof (tic6x_unwind_table_edit));
68ffbac6 3970
fbd9ad90
PB		 3971 new_edit->type = type;
3972 new_edit->linked_section = linked_section;
3973 new_edit->index = tindex;
68ffbac6 3974
fbd9ad90
PB		 3975 if (tindex > 0)
3976 {
3977 new_edit->next = NULL;
3978
3979 if (*tail)
3980 (*tail)->next = new_edit;
3981
3982 (*tail) = new_edit;
3983
3984 if (!*head)
3985 (*head) = new_edit;
3986 }
3987 else
3988 {
3989 new_edit->next = *head;
3990
3991 if (!*tail)
3992 *tail = new_edit;
3993
3994 *head = new_edit;
3995 }
3996}
3997
3998static _tic6x_elf_section_data *
3999get_tic6x_elf_section_data (asection * sec)
4000{
4001 if (sec && sec->owner && is_tic6x_elf (sec->owner))
4002 return elf32_tic6x_section_data (sec);
4003 else
4004 return NULL;
4005}
4006
4007
4008/* Increase the size of EXIDX_SEC by ADJUST bytes. ADJUST must be negative. */
4009static void
4010elf32_tic6x_adjust_exidx_size (asection *exidx_sec, int adjust)
4011{
4012 asection *out_sec;
4013
4014 if (!exidx_sec->rawsize)
4015 exidx_sec->rawsize = exidx_sec->size;
4016
4017 bfd_set_section_size (exidx_sec->owner, exidx_sec, exidx_sec->size + adjust);
4018 out_sec = exidx_sec->output_section;
4019 /* Adjust size of output section. */
4020 bfd_set_section_size (out_sec->owner, out_sec, out_sec->size +adjust);
4021}
4022
4023/* Insert an EXIDX_CANTUNWIND marker at the end of a section. */
4024static void
4025elf32_tic6x_insert_cantunwind_after (asection *text_sec, asection *exidx_sec)
4026{
4027 struct _tic6x_elf_section_data *exidx_data;
4028
4029 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4030 elf32_tic6x_add_unwind_table_edit (
4031 &exidx_data->u.exidx.unwind_edit_list,
4032 &exidx_data->u.exidx.unwind_edit_tail,
4033 INSERT_EXIDX_CANTUNWIND_AT_END, text_sec, UINT_MAX);
4034
4035 elf32_tic6x_adjust_exidx_size (exidx_sec, 8);
4036}
4037
4038/* Scan .cx6abi.exidx tables, and create a list describing edits which
4039 should be made to those tables, such that:
68ffbac6 4040
fbd9ad90
PB		 4041 1. Regions without unwind data are marked with EXIDX_CANTUNWIND entries.
4042 2. Duplicate entries are merged together (EXIDX_CANTUNWIND, or unwind
4043 codes which have been inlined into the index).
4044
4045 If MERGE_EXIDX_ENTRIES is false, duplicate entries are not merged.
4046
4047 The edits are applied when the tables are written
4048 (in elf32_tic6x_write_section).
4049*/
4050
4051bfd_boolean
4052elf32_tic6x_fix_exidx_coverage (asection **text_section_order,
4053 unsigned int num_text_sections,
4054 struct bfd_link_info *info,
4055 bfd_boolean merge_exidx_entries)
4056{
4057 bfd *inp;
4058 unsigned int last_second_word = 0, i;
4059 asection *last_exidx_sec = NULL;
4060 asection *last_text_sec = NULL;
4061 int last_unwind_type = -1;
4062
4063 /* Walk over all EXIDX sections, and create backlinks from the corrsponding
4064 text sections. */
c72f2fb2 4065 for (inp = info->input_bfds; inp != NULL; inp = inp->link.next)
fbd9ad90
PB		 4066 {
4067 asection *sec;
68ffbac6 4068
fbd9ad90
PB		 4069 for (sec = inp->sections; sec != NULL; sec = sec->next)
4070 {
4071 struct bfd_elf_section_data *elf_sec = elf_section_data (sec);
4072 Elf_Internal_Shdr *hdr = &elf_sec->this_hdr;
68ffbac6 4073
fbd9ad90
PB		 4074 if (!hdr || hdr->sh_type != SHT_C6000_UNWIND)
4075 continue;
68ffbac6 4076
fbd9ad90
PB		 4077 if (elf_sec->linked_to)
4078 {
4079 Elf_Internal_Shdr *linked_hdr
4080 = &elf_section_data (elf_sec->linked_to)->this_hdr;
4081 struct _tic6x_elf_section_data *linked_sec_tic6x_data
4082 = get_tic6x_elf_section_data (linked_hdr->bfd_section);
4083
4084 if (linked_sec_tic6x_data == NULL)
4085 continue;
4086
4087 /* Link this .c6xabi.exidx section back from the
4088 text section it describes. */
4089 linked_sec_tic6x_data->u.text.tic6x_exidx_sec = sec;
4090 }
4091 }
4092 }
4093
4094 /* Walk all text sections in order of increasing VMA. Eilminate duplicate
4095 index table entries (EXIDX_CANTUNWIND and inlined unwind opcodes),
4096 and add EXIDX_CANTUNWIND entries for sections with no unwind table data. */
4097
4098 for (i = 0; i < num_text_sections; i++)
4099 {
4100 asection *sec = text_section_order[i];
4101 asection *exidx_sec;
4102 struct _tic6x_elf_section_data *tic6x_data
4103 = get_tic6x_elf_section_data (sec);
4104 struct _tic6x_elf_section_data *exidx_data;
4105 bfd_byte *contents = NULL;
4106 int deleted_exidx_bytes = 0;
4107 bfd_vma j;
4108 tic6x_unwind_table_edit *unwind_edit_head = NULL;
4109 tic6x_unwind_table_edit *unwind_edit_tail = NULL;
4110 Elf_Internal_Shdr *hdr;
4111 bfd *ibfd;
4112
4113 if (tic6x_data == NULL)
4114 continue;
4115
4116 exidx_sec = tic6x_data->u.text.tic6x_exidx_sec;
4117 if (exidx_sec == NULL)
4118 {
4119 /* Section has no unwind data. */
4120 if (last_unwind_type == 0 || !last_exidx_sec)
4121 continue;
4122
4123 /* Ignore zero sized sections. */
4124 if (sec->size == 0)
4125 continue;
4126
4127 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4128 last_unwind_type = 0;
4129 continue;
4130 }
4131
4132 /* Skip /DISCARD/ sections. */
4133 if (bfd_is_abs_section (exidx_sec->output_section))
4134 continue;
4135
4136 hdr = &elf_section_data (exidx_sec)->this_hdr;
4137 if (hdr->sh_type != SHT_C6000_UNWIND)
4138 continue;
68ffbac6 4139
fbd9ad90
PB		 4140 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4141 if (exidx_data == NULL)
4142 continue;
68ffbac6 4143
fbd9ad90 4144 ibfd = exidx_sec->owner;
68ffbac6 4145
fbd9ad90
PB		 4146 if (hdr->contents != NULL)
4147 contents = hdr->contents;
4148 else if (! bfd_malloc_and_get_section (ibfd, exidx_sec, &contents))
4149 /* An error? */
4150 continue;
4151
4152 for (j = 0; j < hdr->sh_size; j += 8)
4153 {
4154 unsigned int second_word = bfd_get_32 (ibfd, contents + j + 4);
4155 int unwind_type;
4156 int elide = 0;
4157
4158 /* An EXIDX_CANTUNWIND entry. */
4159 if (second_word == 1)
4160 {
4161 if (last_unwind_type == 0)
4162 elide = 1;
4163 unwind_type = 0;
4164 }
4165 /* Inlined unwinding data. Merge if equal to previous. */
4166 else if ((second_word & 0x80000000) != 0)
4167 {
4168 if (merge_exidx_entries
4169 && last_second_word == second_word
4170 && last_unwind_type == 1)
4171 elide = 1;
4172 unwind_type = 1;
4173 last_second_word = second_word;
4174 }
4175 /* Normal table entry. In theory we could merge these too,
4176 but duplicate entries are likely to be much less common. */
4177 else
4178 unwind_type = 2;
4179
4180 if (elide)
4181 {
4182 elf32_tic6x_add_unwind_table_edit (&unwind_edit_head,
4183 &unwind_edit_tail, DELETE_EXIDX_ENTRY, NULL, j / 8);
4184
4185 deleted_exidx_bytes += 8;
4186 }
4187
4188 last_unwind_type = unwind_type;
4189 }
4190
4191 /* Free contents if we allocated it ourselves. */
4192 if (contents != hdr->contents)
4193 free (contents);
4194
4195 /* Record edits to be applied later (in elf32_tic6x_write_section). */
4196 exidx_data->u.exidx.unwind_edit_list = unwind_edit_head;
4197 exidx_data->u.exidx.unwind_edit_tail = unwind_edit_tail;
68ffbac6 4198
fbd9ad90
PB		 4199 if (deleted_exidx_bytes > 0)
4200 elf32_tic6x_adjust_exidx_size (exidx_sec, -deleted_exidx_bytes);
4201
4202 last_exidx_sec = exidx_sec;
4203 last_text_sec = sec;
4204 }
4205
4206 /* Add terminating CANTUNWIND entry. */
4207 if (last_exidx_sec && last_unwind_type != 0)
4208 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4209
4210 return TRUE;
4211}
4212
4213/* Add ADDEND to lower 31 bits of VAL, leaving other bits unmodified. */
4214
4215static unsigned long
4216elf32_tic6x_add_low31 (unsigned long val, bfd_vma addend)
4217{
4218 return (val & ~0x7ffffffful) | ((val + addend) & 0x7ffffffful);
4219}
4220
4221/* Copy an .c6xabi.exidx table entry, adding OFFSET to (applied) PREL31
4222 relocations. OFFSET is in bytes, and will be scaled before encoding. */
4223
4224
4225static void
4226elf32_tic6x_copy_exidx_entry (bfd *output_bfd, bfd_byte *to, bfd_byte *from,
4227 bfd_vma offset)
4228{
4229 unsigned long first_word = bfd_get_32 (output_bfd, from);
4230 unsigned long second_word = bfd_get_32 (output_bfd, from + 4);
4231
4232 offset >>= 1;
4233 /* High bit of first word is supposed to be zero. */
4234 if ((first_word & 0x80000000ul) == 0)
4235 first_word = elf32_tic6x_add_low31 (first_word, offset);
68ffbac6 4236
fbd9ad90
PB		 4237 /* If the high bit of the first word is clear, and the bit pattern is not 0x1
4238 (EXIDX_CANTUNWIND), this is an offset to an .c6xabi.extab entry. */
4239 if ((second_word != 0x1) && ((second_word & 0x80000000ul) == 0))
4240 second_word = elf32_tic6x_add_low31 (second_word, offset);
68ffbac6 4241
fbd9ad90
PB		 4242 bfd_put_32 (output_bfd, first_word, to);
4243 bfd_put_32 (output_bfd, second_word, to + 4);
4244}
4245
4246/* Do the actual mangling of exception index tables. */
4247
4248static bfd_boolean
4249elf32_tic6x_write_section (bfd *output_bfd,
4250 struct bfd_link_info *link_info,
4251 asection *sec,
4252 bfd_byte *contents)
4253{
4254 _tic6x_elf_section_data *tic6x_data;
4255 struct elf32_tic6x_link_hash_table *globals
4256 = elf32_tic6x_hash_table (link_info);
4257 bfd_vma offset = sec->output_section->vma + sec->output_offset;
4258
4259 if (globals == NULL)
4260 return FALSE;
4261
4262 /* If this section has not been allocated an _tic6x_elf_section_data
4263 structure then we cannot record anything. */
4264 tic6x_data = get_tic6x_elf_section_data (sec);
4265 if (tic6x_data == NULL)
4266 return FALSE;
4267
4268 if (tic6x_data->elf.this_hdr.sh_type != SHT_C6000_UNWIND)
4269 return FALSE;
4270
4271 tic6x_unwind_table_edit *edit_node
4272 = tic6x_data->u.exidx.unwind_edit_list;
4273 /* Now, sec->size is the size of the section we will write. The original
4274 size (before we merged duplicate entries and inserted EXIDX_CANTUNWIND
4275 markers) was sec->rawsize. (This isn't the case if we perform no
4276 edits, then rawsize will be zero and we should use size). */
4277 bfd_byte *edited_contents = (bfd_byte *) bfd_malloc (sec->size);
4278 unsigned int input_size = sec->rawsize ? sec->rawsize : sec->size;
4279 unsigned int in_index, out_index;
4280 bfd_vma add_to_offsets = 0;
4281
4282 for (in_index = 0, out_index = 0; in_index * 8 < input_size || edit_node;)
4283 {
4284 if (edit_node)
4285 {
4286 unsigned int edit_index = edit_node->index;
68ffbac6 4287
fbd9ad90
PB		 4288 if (in_index < edit_index && in_index * 8 < input_size)
4289 {
4290 elf32_tic6x_copy_exidx_entry (output_bfd,
4291 edited_contents + out_index * 8,
4292 contents + in_index * 8, add_to_offsets);
4293 out_index++;
4294 in_index++;
4295 }
4296 else if (in_index == edit_index
4297 || (in_index * 8 >= input_size
4298 && edit_index == UINT_MAX))
4299 {
4300 switch (edit_node->type)
4301 {
4302 case DELETE_EXIDX_ENTRY:
4303 in_index++;
4304 add_to_offsets += 8;
4305 break;
68ffbac6 4306
fbd9ad90
PB		 4307 case INSERT_EXIDX_CANTUNWIND_AT_END:
4308 {
4309 asection *text_sec = edit_node->linked_section;
4310 bfd_vma text_offset = text_sec->output_section->vma
4311 + text_sec->output_offset
4312 + text_sec->size;
4313 bfd_vma exidx_offset = offset + out_index * 8;
4314 unsigned long prel31_offset;
4315
4316 /* Note: this is meant to be equivalent to an
4317 R_C6000_PREL31 relocation. These synthetic
4318 EXIDX_CANTUNWIND markers are not relocated by the
4319 usual BFD method. */
4320 prel31_offset = ((text_offset - exidx_offset) >> 1)
4321 & 0x7ffffffful;
4322
4323 /* First address we can't unwind. */
4324 bfd_put_32 (output_bfd, prel31_offset,
4325 &edited_contents[out_index * 8]);
4326
4327 /* Code for EXIDX_CANTUNWIND. */
4328 bfd_put_32 (output_bfd, 0x1,
4329 &edited_contents[out_index * 8 + 4]);
4330
4331 out_index++;
4332 add_to_offsets -= 8;
4333 }
4334 break;
4335 }
68ffbac6 4336
fbd9ad90
PB		 4337 edit_node = edit_node->next;
4338 }
4339 }
4340 else
4341 {
4342 /* No more edits, copy remaining entries verbatim. */
4343 elf32_tic6x_copy_exidx_entry (output_bfd,
4344 edited_contents + out_index * 8,
4345 contents + in_index * 8, add_to_offsets);
4346 out_index++;
4347 in_index++;
4348 }
4349 }
4350
4351 if (!(sec->flags & SEC_EXCLUDE) && !(sec->flags & SEC_NEVER_LOAD))
4352 bfd_set_section_contents (output_bfd, sec->output_section,
4353 edited_contents,
4354 (file_ptr) sec->output_offset, sec->size);
4355
4356 return TRUE;
4357}
4358
6d00b590 4359#define TARGET_LITTLE_SYM tic6x_elf32_le_vec
40b36596 4360#define TARGET_LITTLE_NAME "elf32-tic6x-le"
6d00b590 4361#define TARGET_BIG_SYM tic6x_elf32_be_vec
40b36596
JM		 4362#define TARGET_BIG_NAME "elf32-tic6x-be"
4363#define ELF_ARCH bfd_arch_tic6x
ae95ffa6 4364#define ELF_TARGET_ID TIC6X_ELF_DATA
40b36596 4365#define ELF_MACHINE_CODE EM_TI_C6000
ac145307 4366#define ELF_MAXPAGESIZE 0x1000
40b36596
JM		 4367#define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
4368#define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
59e6276b 4369#define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
41820509 4370#define bfd_elf32_mkobject elf32_tic6x_mkobject
ac145307 4371#define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
41820509 4372#define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
04c3a755 4373#define elf_backend_stack_align 8
40b36596
JM		 4374#define elf_backend_can_gc_sections 1
4375#define elf_backend_default_use_rela_p 1
4376#define elf_backend_may_use_rel_p 1
4377#define elf_backend_may_use_rela_p 1
59e6276b 4378#define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
0547accf 4379#define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
87779176 4380#define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
75fa6dc1 4381#define elf_backend_obj_attrs_section ".c6xabi.attributes"
59e6276b
JM		 4382#define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
4383#define elf_backend_obj_attrs_vendor "c6xabi"
ac145307
BS		 4384#define elf_backend_can_refcount 1
4385#define elf_backend_want_got_plt 1
4386#define elf_backend_want_dynbss 1
5474d94f 4387#define elf_backend_want_dynrelro 1
ac145307 4388#define elf_backend_plt_readonly 1
40b36596 4389#define elf_backend_rela_normal 1
ac145307 4390#define elf_backend_got_header_size 8
1bce6bd8 4391#define elf_backend_fake_sections elf32_tic6x_fake_sections
ac145307 4392#define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook
9cf0e282 4393#define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections
ac145307
BS		 4394#define elf_backend_create_dynamic_sections \
4395 elf32_tic6x_create_dynamic_sections
4396#define elf_backend_adjust_dynamic_symbol \
4397 elf32_tic6x_adjust_dynamic_symbol
4398#define elf_backend_check_relocs elf32_tic6x_check_relocs
4399#define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
4400#define elf_backend_symbol_processing elf32_tic6x_symbol_processing
4401#define elf_backend_link_output_symbol_hook \
4402 elf32_tic6x_link_output_symbol_hook
4403#define elf_backend_section_from_bfd_section \
4404 elf32_tic6x_section_from_bfd_section
40b36596 4405#define elf_backend_relocate_section elf32_tic6x_relocate_section
2a616379 4406#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
ac145307
BS		 4407#define elf_backend_finish_dynamic_symbol \
4408 elf32_tic6x_finish_dynamic_symbol
4409#define elf_backend_always_size_sections \
4410 elf32_tic6x_always_size_sections
4411#define elf_backend_size_dynamic_sections \
4412 elf32_tic6x_size_dynamic_sections
4413#define elf_backend_finish_dynamic_sections \
4414 elf32_tic6x_finish_dynamic_sections
c6a8f6e0
BS		 4415#define bfd_elf32_bfd_final_link \
4416 elf32_tic6x_final_link
fbd9ad90 4417#define elf_backend_write_section elf32_tic6x_write_section
40b36596 4418#define elf_info_to_howto elf32_tic6x_info_to_howto
41820509 4419#define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
40b36596 4420
ac145307
BS		 4421#undef elf_backend_omit_section_dynsym
4422#define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
4423#define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
4424
2a616379
BS		 4425#include "elf32-target.h"
4426
4427#undef elf32_bed
4428#define elf32_bed elf32_tic6x_linux_bed
4429
4430#undef TARGET_LITTLE_SYM
6d00b590 4431#define TARGET_LITTLE_SYM tic6x_elf32_linux_le_vec
2a616379
BS		 4432#undef TARGET_LITTLE_NAME
4433#define TARGET_LITTLE_NAME "elf32-tic6x-linux-le"
4434#undef TARGET_BIG_SYM
6d00b590 4435#define TARGET_BIG_SYM tic6x_elf32_linux_be_vec
2a616379
BS		 4436#undef TARGET_BIG_NAME
4437#define TARGET_BIG_NAME "elf32-tic6x-linux-be"
4438#undef ELF_OSABI
4439#define ELF_OSABI ELFOSABI_C6000_LINUX
4440
2a616379
BS		 4441#include "elf32-target.h"
4442
4443#undef elf32_bed
4444#define elf32_bed elf32_tic6x_elf_bed
4445
4446#undef TARGET_LITTLE_SYM
6d00b590 4447#define TARGET_LITTLE_SYM tic6x_elf32_c6000_le_vec
2a616379
BS		 4448#undef TARGET_LITTLE_NAME
4449#define TARGET_LITTLE_NAME "elf32-tic6x-elf-le"
4450#undef TARGET_BIG_SYM
6d00b590 4451#define TARGET_BIG_SYM tic6x_elf32_c6000_be_vec
2a616379
BS		 4452#undef TARGET_BIG_NAME
4453#define TARGET_BIG_NAME "elf32-tic6x-elf-be"
4454#undef ELF_OSABI
4455#define ELF_OSABI ELFOSABI_C6000_ELFABI
4456
40b36596 4457#include "elf32-target.h"
GDB Binutils - Deliverables
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