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Better ld --fatal-warnings support
[thirdparty/binutils-gdb.git] / bfd / elf32-tic6x.c
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40b36596 1/* 32-bit ELF support for TI C6X
6f2750fe 2 Copyright (C) 2010-2016 Free Software Foundation, Inc.
c0621d88
NS		 3 Contributed by Joseph Myers <joseph@codesourcery.com>
4 Bernd Schmidt <bernds@codesourcery.com>
40b36596
JM		 5
6 This file is part of BFD, the Binary File Descriptor library.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
22
23#include "sysdep.h"
fbd9ad90 24#include <limits.h>
40b36596
JM		 25#include "bfd.h"
26#include "libbfd.h"
27#include "libiberty.h"
28#include "elf-bfd.h"
29#include "elf/tic6x.h"
41820509
JM		 30#include "elf32-tic6x.h"
31
ac145307
BS		 32#define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0"
33
34/* DSBT binaries have a default 128K stack. */
35#define DEFAULT_STACK_SIZE 0x20000
36
37/* The size in bytes of an entry in the procedure linkage table. */
38#define PLT_ENTRY_SIZE 24
39
40/* TI C6X ELF linker hash table. */
41
42struct elf32_tic6x_link_hash_table
43{
44 struct elf_link_hash_table elf;
45
46 /* Short-cuts to get to dynamic linker sections. */
47 asection *sdynbss;
48 asection *srelbss;
49
50 /* C6X specific command line arguments. */
51 struct elf32_tic6x_params params;
52
53 /* Small local sym cache. */
54 struct sym_cache sym_cache;
55
56 /* The output BFD, for convenience. */
57 bfd *obfd;
58
59 /* The .dsbt section. */
60 asection *dsbt;
61};
62
63/* Get the TI C6X ELF linker hash table from a link_info structure. */
64
65#define elf32_tic6x_hash_table(p) \
66 ((struct elf32_tic6x_link_hash_table *) ((p)->hash))
67
68/* TI C6X ELF linker hash entry. */
69
70struct elf32_tic6x_link_hash_entry
71{
72 struct elf_link_hash_entry elf;
73
74 /* Track dynamic relocs copied for this symbol. */
75 struct elf_dyn_relocs *dyn_relocs;
76};
77
fbd9ad90
PB		 78typedef enum
79{
80 DELETE_EXIDX_ENTRY,
81 INSERT_EXIDX_CANTUNWIND_AT_END
82}
83tic6x_unwind_edit_type;
84
85/* A (sorted) list of edits to apply to an unwind table. */
86typedef struct tic6x_unwind_table_edit
87{
88 tic6x_unwind_edit_type type;
89 /* Note: we sometimes want to insert an unwind entry corresponding to a
90 section different from the one we're currently writing out, so record the
91 (text) section this edit relates to here. */
92 asection *linked_section;
93 unsigned int index;
94 struct tic6x_unwind_table_edit *next;
95}
96tic6x_unwind_table_edit;
97
98typedef struct _tic6x_elf_section_data
99{
100 /* Information about mapping symbols. */
101 struct bfd_elf_section_data elf;
102 /* Information about unwind tables. */
103 union
104 {
105 /* Unwind info attached to a text section. */
106 struct
107 {
108 asection *tic6x_exidx_sec;
109 } text;
110
111 /* Unwind info attached to an .c6xabi.exidx section. */
112 struct
113 {
114 tic6x_unwind_table_edit *unwind_edit_list;
115 tic6x_unwind_table_edit *unwind_edit_tail;
116 } exidx;
117 } u;
118}
119_tic6x_elf_section_data;
120
121#define elf32_tic6x_section_data(sec) \
122 ((_tic6x_elf_section_data *) elf_section_data (sec))
123
41820509
JM		 124struct elf32_tic6x_obj_tdata
125{
126 struct elf_obj_tdata root;
127
128 /* Whether to use RELA relocations when generating relocations.
129 This is a per-object flag to allow the assembler to generate REL
130 relocations for use in linker testcases. */
131 bfd_boolean use_rela_p;
132};
133
134#define elf32_tic6x_tdata(abfd) \
135 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
40b36596 136
ac145307
BS		 137#define is_tic6x_elf(bfd) \
138 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
139 && elf_tdata (bfd) != NULL \
140 && elf_object_id (bfd) == TIC6X_ELF_DATA)
141
142/* C6X ELF uses two common sections. One is the usual one, and the
143 other is for small objects. All the small objects are kept
144 together, and then referenced via the gp pointer, which yields
145 faster assembler code. This is what we use for the small common
146 section. This approach is copied from ecoff.c. */
147static asection tic6x_elf_scom_section;
148static asymbol tic6x_elf_scom_symbol;
149static asymbol *tic6x_elf_scom_symbol_ptr;
150
40b36596
JM		 151static reloc_howto_type elf32_tic6x_howto_table[] =
152{
153 HOWTO (R_C6000_NONE, /* type */
154 0, /* rightshift */
6346d5ca 155 3, /* size (0 = byte, 1 = short, 2 = long) */
40b36596
JM		 156 0, /* bitsize */
157 FALSE, /* pc_relative */
158 0, /* bitpos */
159 complain_overflow_dont,/* complain_on_overflow */
160 bfd_elf_generic_reloc, /* special_function */
161 "R_C6000_NONE", /* name */
41820509
JM		 162 FALSE, /* partial_inplace */
163 0, /* src_mask */
164 0, /* dst_mask */
165 FALSE), /* pcrel_offset */
166 HOWTO (R_C6000_ABS32, /* type */
167 0, /* rightshift */
168 2, /* size (0 = byte, 1 = short, 2 = long) */
169 32, /* bitsize */
170 FALSE, /* pc_relative */
171 0, /* bitpos */
172 complain_overflow_dont,/* complain_on_overflow */
173 bfd_elf_generic_reloc, /* special_function */
174 "R_C6000_ABS32", /* name */
175 FALSE, /* partial_inplace */
176 0, /* src_mask */
177 0xffffffff, /* dst_mask */
178 FALSE), /* pcrel_offset */
179 HOWTO (R_C6000_ABS16, /* type */
180 0, /* rightshift */
181 1, /* size (0 = byte, 1 = short, 2 = long) */
182 16, /* bitsize */
183 FALSE, /* pc_relative */
184 0, /* bitpos */
185 complain_overflow_bitfield,/* complain_on_overflow */
186 bfd_elf_generic_reloc, /* special_function */
187 "R_C6000_ABS16", /* name */
188 FALSE, /* partial_inplace */
189 0, /* src_mask */
190 0x0000ffff, /* dst_mask */
191 FALSE), /* pcrel_offset */
192 HOWTO (R_C6000_ABS8, /* type */
193 0, /* rightshift */
194 0, /* size (0 = byte, 1 = short, 2 = long) */
195 8, /* bitsize */
196 FALSE, /* pc_relative */
197 0, /* bitpos */
198 complain_overflow_bitfield,/* complain_on_overflow */
199 bfd_elf_generic_reloc, /* special_function */
200 "R_C6000_ABS8", /* name */
201 FALSE, /* partial_inplace */
202 0, /* src_mask */
203 0x000000ff, /* dst_mask */
204 FALSE), /* pcrel_offset */
205 HOWTO (R_C6000_PCR_S21, /* type */
206 2, /* rightshift */
207 2, /* size (0 = byte, 1 = short, 2 = long) */
208 21, /* bitsize */
209 TRUE, /* pc_relative */
210 7, /* bitpos */
211 complain_overflow_signed,/* complain_on_overflow */
212 bfd_elf_generic_reloc, /* special_function */
213 "R_C6000_PCR_S21", /* name */
214 FALSE, /* partial_inplace */
215 0, /* src_mask */
216 0x0fffff80, /* dst_mask */
217 TRUE), /* pcrel_offset */
218 HOWTO (R_C6000_PCR_S12, /* type */
219 2, /* rightshift */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
221 12, /* bitsize */
222 TRUE, /* pc_relative */
223 16, /* bitpos */
224 complain_overflow_signed,/* complain_on_overflow */
225 bfd_elf_generic_reloc, /* special_function */
226 "R_C6000_PCR_S12", /* name */
227 FALSE, /* partial_inplace */
228 0, /* src_mask */
229 0x0fff0000, /* dst_mask */
230 TRUE), /* pcrel_offset */
231 HOWTO (R_C6000_PCR_S10, /* type */
232 2, /* rightshift */
233 2, /* size (0 = byte, 1 = short, 2 = long) */
234 10, /* bitsize */
235 TRUE, /* pc_relative */
236 13, /* bitpos */
237 complain_overflow_signed,/* complain_on_overflow */
238 bfd_elf_generic_reloc, /* special_function */
239 "R_C6000_PCR_S10", /* name */
240 FALSE, /* partial_inplace */
241 0, /* src_mask */
242 0x007fe000, /* dst_mask */
243 TRUE), /* pcrel_offset */
244 HOWTO (R_C6000_PCR_S7, /* type */
245 2, /* rightshift */
246 2, /* size (0 = byte, 1 = short, 2 = long) */
247 7, /* bitsize */
248 TRUE, /* pc_relative */
249 16, /* bitpos */
250 complain_overflow_signed,/* complain_on_overflow */
251 bfd_elf_generic_reloc, /* special_function */
252 "R_C6000_PCR_S7", /* name */
253 FALSE, /* partial_inplace */
254 0, /* src_mask */
255 0x007f0000, /* dst_mask */
256 TRUE), /* pcrel_offset */
257 HOWTO (R_C6000_ABS_S16, /* type */
258 0, /* rightshift */
259 2, /* size (0 = byte, 1 = short, 2 = long) */
260 16, /* bitsize */
261 FALSE, /* pc_relative */
262 7, /* bitpos */
263 complain_overflow_signed,/* complain_on_overflow */
264 bfd_elf_generic_reloc, /* special_function */
265 "R_C6000_ABS_S16", /* name */
266 FALSE, /* partial_inplace */
267 0, /* src_mask */
268 0x007fff80, /* dst_mask */
269 FALSE), /* pcrel_offset */
270 HOWTO (R_C6000_ABS_L16, /* type */
271 0, /* rightshift */
272 2, /* size (0 = byte, 1 = short, 2 = long) */
273 16, /* bitsize */
274 FALSE, /* pc_relative */
275 7, /* bitpos */
276 complain_overflow_dont,/* complain_on_overflow */
277 bfd_elf_generic_reloc, /* special_function */
278 "R_C6000_ABS_L16", /* name */
279 FALSE, /* partial_inplace */
280 0, /* src_mask */
281 0x007fff80, /* dst_mask */
282 FALSE), /* pcrel_offset */
283 HOWTO (R_C6000_ABS_H16, /* type */
284 16, /* rightshift */
285 2, /* size (0 = byte, 1 = short, 2 = long) */
286 16, /* bitsize */
287 FALSE, /* pc_relative */
288 7, /* bitpos */
289 complain_overflow_dont,/* complain_on_overflow */
290 bfd_elf_generic_reloc, /* special_function */
291 "R_C6000_ABS_H16", /* name */
292 FALSE, /* partial_inplace */
293 0, /* src_mask */
294 0x007fff80, /* dst_mask */
295 FALSE), /* pcrel_offset */
296 HOWTO (R_C6000_SBR_U15_B, /* type */
297 0, /* rightshift */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
299 15, /* bitsize */
300 FALSE, /* pc_relative */
301 8, /* bitpos */
302 complain_overflow_unsigned,/* complain_on_overflow */
303 bfd_elf_generic_reloc, /* special_function */
304 "R_C6000_SBR_U15_B", /* name */
305 FALSE, /* partial_inplace */
306 0, /* src_mask */
307 0x007fff00, /* dst_mask */
308 FALSE), /* pcrel_offset */
309 HOWTO (R_C6000_SBR_U15_H, /* type */
310 1, /* rightshift */
311 2, /* size (0 = byte, 1 = short, 2 = long) */
312 15, /* bitsize */
313 FALSE, /* pc_relative */
314 8, /* bitpos */
315 complain_overflow_unsigned,/* complain_on_overflow */
316 bfd_elf_generic_reloc, /* special_function */
317 "R_C6000_SBR_U15_H", /* name */
318 FALSE, /* partial_inplace */
319 0, /* src_mask */
320 0x007fff00, /* dst_mask */
321 FALSE), /* pcrel_offset */
322 HOWTO (R_C6000_SBR_U15_W, /* type */
323 2, /* rightshift */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
325 15, /* bitsize */
326 FALSE, /* pc_relative */
327 8, /* bitpos */
328 complain_overflow_unsigned,/* complain_on_overflow */
329 bfd_elf_generic_reloc, /* special_function */
330 "R_C6000_SBR_U15_W", /* name */
331 FALSE, /* partial_inplace */
332 0, /* src_mask */
333 0x007fff00, /* dst_mask */
334 FALSE), /* pcrel_offset */
335 HOWTO (R_C6000_SBR_S16, /* type */
336 0, /* rightshift */
337 2, /* size (0 = byte, 1 = short, 2 = long) */
338 16, /* bitsize */
339 FALSE, /* pc_relative */
340 7, /* bitpos */
341 complain_overflow_signed,/* complain_on_overflow */
342 bfd_elf_generic_reloc, /* special_function */
343 "R_C6000_SBR_S16", /* name */
344 FALSE, /* partial_inplace */
345 0, /* src_mask */
346 0x007fff80, /* dst_mask */
347 FALSE), /* pcrel_offset */
348 HOWTO (R_C6000_SBR_L16_B, /* type */
349 0, /* rightshift */
350 2, /* size (0 = byte, 1 = short, 2 = long) */
351 16, /* bitsize */
352 FALSE, /* pc_relative */
353 7, /* bitpos */
354 complain_overflow_dont,/* complain_on_overflow */
355 bfd_elf_generic_reloc, /* special_function */
356 "R_C6000_SBR_L16_B", /* name */
357 FALSE, /* partial_inplace */
358 0, /* src_mask */
359 0x007fff80, /* dst_mask */
360 FALSE), /* pcrel_offset */
361 HOWTO (R_C6000_SBR_L16_H, /* type */
362 1, /* rightshift */
363 2, /* size (0 = byte, 1 = short, 2 = long) */
364 16, /* bitsize */
365 FALSE, /* pc_relative */
366 7, /* bitpos */
367 complain_overflow_dont,/* complain_on_overflow */
368 bfd_elf_generic_reloc, /* special_function */
369 "R_C6000_SBR_L16_H", /* name */
370 FALSE, /* partial_inplace */
371 0, /* src_mask */
372 0x007fff80, /* dst_mask */
373 FALSE), /* pcrel_offset */
374 HOWTO (R_C6000_SBR_L16_W, /* type */
375 2, /* rightshift */
376 2, /* size (0 = byte, 1 = short, 2 = long) */
377 16, /* bitsize */
378 FALSE, /* pc_relative */
379 7, /* bitpos */
380 complain_overflow_dont,/* complain_on_overflow */
381 bfd_elf_generic_reloc, /* special_function */
382 "R_C6000_SBR_L16_W", /* name */
383 FALSE, /* partial_inplace */
384 0, /* src_mask */
385 0x007fff80, /* dst_mask */
386 FALSE), /* pcrel_offset */
387 HOWTO (R_C6000_SBR_H16_B, /* type */
388 16, /* rightshift */
389 2, /* size (0 = byte, 1 = short, 2 = long) */
390 16, /* bitsize */
391 FALSE, /* pc_relative */
392 7, /* bitpos */
393 complain_overflow_dont,/* complain_on_overflow */
394 bfd_elf_generic_reloc, /* special_function */
395 "R_C6000_SBR_H16_B", /* name */
396 FALSE, /* partial_inplace */
397 0, /* src_mask */
398 0x007fff80, /* dst_mask */
399 FALSE), /* pcrel_offset */
400 HOWTO (R_C6000_SBR_H16_H, /* type */
401 17, /* rightshift */
402 2, /* size (0 = byte, 1 = short, 2 = long) */
403 16, /* bitsize */
404 FALSE, /* pc_relative */
405 7, /* bitpos */
406 complain_overflow_dont,/* complain_on_overflow */
407 bfd_elf_generic_reloc, /* special_function */
408 "R_C6000_SBR_H16_H", /* name */
409 FALSE, /* partial_inplace */
410 0, /* src_mask */
411 0x007fff80, /* dst_mask */
412 FALSE), /* pcrel_offset */
413 HOWTO (R_C6000_SBR_H16_W, /* type */
414 18, /* rightshift */
415 2, /* size (0 = byte, 1 = short, 2 = long) */
416 16, /* bitsize */
417 FALSE, /* pc_relative */
418 7, /* bitpos */
419 complain_overflow_dont,/* complain_on_overflow */
420 bfd_elf_generic_reloc, /* special_function */
421 "R_C6000_SBR_H16_W", /* name */
422 FALSE, /* partial_inplace */
423 0, /* src_mask */
424 0x007fff80, /* dst_mask */
425 FALSE), /* pcrel_offset */
426 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
427 2, /* rightshift */
428 2, /* size (0 = byte, 1 = short, 2 = long) */
429 15, /* bitsize */
430 FALSE, /* pc_relative */
431 8, /* bitpos */
432 complain_overflow_unsigned,/* complain_on_overflow */
433 bfd_elf_generic_reloc, /* special_function */
434 "R_C6000_SBR_GOT_U15_W",/* name */
435 FALSE, /* partial_inplace */
436 0, /* src_mask */
437 0x007fff00, /* dst_mask */
438 FALSE), /* pcrel_offset */
439 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
440 2, /* rightshift */
441 2, /* size (0 = byte, 1 = short, 2 = long) */
442 16, /* bitsize */
443 FALSE, /* pc_relative */
444 7, /* bitpos */
445 complain_overflow_dont,/* complain_on_overflow */
446 bfd_elf_generic_reloc, /* special_function */
447 "R_C6000_SBR_GOT_L16_W",/* name */
448 FALSE, /* partial_inplace */
449 0, /* src_mask */
450 0x007fff80, /* dst_mask */
451 FALSE), /* pcrel_offset */
452 HOWTO (R_C6000_SBR_GOT_H16_W, /* type */
453 18, /* rightshift */
454 2, /* size (0 = byte, 1 = short, 2 = long) */
455 16, /* bitsize */
456 FALSE, /* pc_relative */
457 7, /* bitpos */
458 complain_overflow_dont,/* complain_on_overflow */
459 bfd_elf_generic_reloc, /* special_function */
460 "R_C6000_SBR_GOT_H16_W",/* name */
461 FALSE, /* partial_inplace */
462 0, /* src_mask */
463 0x007fff80, /* dst_mask */
464 FALSE), /* pcrel_offset */
465 HOWTO (R_C6000_DSBT_INDEX, /* type */
466 0, /* rightshift */
467 2, /* size (0 = byte, 1 = short, 2 = long) */
468 15, /* bitsize */
469 FALSE, /* pc_relative */
470 8, /* bitpos */
471 complain_overflow_unsigned,/* complain_on_overflow */
472 bfd_elf_generic_reloc, /* special_function */
473 "R_C6000_DSBT_INDEX", /* name */
474 FALSE, /* partial_inplace */
475 0, /* src_mask */
476 0x007fff00, /* dst_mask */
477 FALSE), /* pcrel_offset */
478 HOWTO (R_C6000_PREL31, /* type */
479 1, /* rightshift */
480 2, /* size (0 = byte, 1 = short, 2 = long) */
481 31, /* bitsize */
44e87ece 482 TRUE, /* pc_relative */
41820509
JM		 483 0, /* bitpos */
484 complain_overflow_dont,/* complain_on_overflow */
485 bfd_elf_generic_reloc, /* special_function */
486 "R_C6000_PREL31", /* name */
487 FALSE, /* partial_inplace */
488 0, /* src_mask */
489 0x7fffffff, /* dst_mask */
44e87ece 490 TRUE), /* pcrel_offset */
41820509
JM		 491 HOWTO (R_C6000_COPY, /* type */
492 0, /* rightshift */
493 2, /* size (0 = byte, 1 = short, 2 = long) */
494 32, /* bitsize */
495 FALSE, /* pc_relative */
496 0, /* bitpos */
497 complain_overflow_dont,/* complain_on_overflow */
498 bfd_elf_generic_reloc, /* special_function */
499 "R_C6000_COPY", /* name */
500 FALSE, /* partial_inplace */
501 0, /* src_mask */
502 0xffffffff, /* dst_mask */
503 FALSE), /* pcrel_offset */
ac145307
BS		 504 HOWTO (R_C6000_JUMP_SLOT, /* type */
505 0, /* rightshift */
506 2, /* size (0 = byte, 1 = short, 2 = long) */
507 32, /* bitsize */
508 FALSE, /* pc_relative */
509 0, /* bitpos */
510 complain_overflow_dont,/* complain_on_overflow */
511 bfd_elf_generic_reloc, /* special_function */
512 "R_C6000_JUMP_SLOT", /* name */
513 FALSE, /* partial_inplace */
514 0, /* src_mask */
515 0xffffffff, /* dst_mask */
516 FALSE), /* pcrel_offset */
2fbb87f6
PB		 517 HOWTO (R_C6000_EHTYPE, /* type */
518 0, /* rightshift */
519 2, /* size (0 = byte, 1 = short, 2 = long) */
520 32, /* bitsize */
521 FALSE, /* pc_relative */
522 0, /* bitpos */
523 complain_overflow_dont,/* complain_on_overflow */
524 bfd_elf_generic_reloc, /* special_function */
525 "R_C6000_EHTYPE", /* name */
526 FALSE, /* partial_inplace */
527 0, /* src_mask */
528 0xffffffff, /* dst_mask */
529 FALSE), /* pcrel_offset */
4a732032
BS		 530 HOWTO (R_C6000_PCR_H16, /* type */
531 16, /* rightshift */
532 2, /* size (0 = byte, 1 = short, 2 = long) */
533 16, /* bitsize */
534 TRUE, /* pc_relative */
535 7, /* bitpos */
536 complain_overflow_dont,/* complain_on_overflow */
537 bfd_elf_generic_reloc, /* special_function */
538 "R_C6000_PCR_H16", /* name */
539 FALSE, /* partial_inplace */
540 0, /* src_mask */
541 0x007fff80, /* dst_mask */
542 TRUE), /* pcrel_offset */
543 HOWTO (R_C6000_PCR_L16, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 16, /* bitsize */
547 TRUE, /* pc_relative */
548 7, /* bitpos */
549 complain_overflow_dont,/* complain_on_overflow */
550 bfd_elf_generic_reloc, /* special_function */
551 "R_C6000_PCR_L16", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0x007fff80, /* dst_mask */
555 TRUE), /* pcrel_offset */
41820509
JM		 556 EMPTY_HOWTO (31),
557 EMPTY_HOWTO (32),
558 EMPTY_HOWTO (33),
559 EMPTY_HOWTO (34),
560 EMPTY_HOWTO (35),
561 EMPTY_HOWTO (36),
562 EMPTY_HOWTO (37),
563 EMPTY_HOWTO (38),
564 EMPTY_HOWTO (39),
565 EMPTY_HOWTO (40),
566 EMPTY_HOWTO (41),
567 EMPTY_HOWTO (42),
568 EMPTY_HOWTO (43),
569 EMPTY_HOWTO (44),
570 EMPTY_HOWTO (45),
571 EMPTY_HOWTO (46),
572 EMPTY_HOWTO (47),
573 EMPTY_HOWTO (48),
574 EMPTY_HOWTO (49),
575 EMPTY_HOWTO (50),
576 EMPTY_HOWTO (51),
577 EMPTY_HOWTO (52),
578 EMPTY_HOWTO (53),
579 EMPTY_HOWTO (54),
580 EMPTY_HOWTO (55),
581 EMPTY_HOWTO (56),
582 EMPTY_HOWTO (57),
583 EMPTY_HOWTO (58),
584 EMPTY_HOWTO (59),
585 EMPTY_HOWTO (60),
586 EMPTY_HOWTO (61),
587 EMPTY_HOWTO (62),
588 EMPTY_HOWTO (63),
589 EMPTY_HOWTO (64),
590 EMPTY_HOWTO (65),
591 EMPTY_HOWTO (66),
592 EMPTY_HOWTO (67),
593 EMPTY_HOWTO (68),
594 EMPTY_HOWTO (69),
595 EMPTY_HOWTO (70),
596 EMPTY_HOWTO (71),
597 EMPTY_HOWTO (72),
598 EMPTY_HOWTO (73),
599 EMPTY_HOWTO (74),
600 EMPTY_HOWTO (75),
601 EMPTY_HOWTO (76),
602 EMPTY_HOWTO (77),
603 EMPTY_HOWTO (78),
604 EMPTY_HOWTO (79),
605 EMPTY_HOWTO (80),
606 EMPTY_HOWTO (81),
607 EMPTY_HOWTO (82),
608 EMPTY_HOWTO (83),
609 EMPTY_HOWTO (84),
610 EMPTY_HOWTO (85),
611 EMPTY_HOWTO (86),
612 EMPTY_HOWTO (87),
613 EMPTY_HOWTO (88),
614 EMPTY_HOWTO (89),
615 EMPTY_HOWTO (90),
616 EMPTY_HOWTO (91),
617 EMPTY_HOWTO (92),
618 EMPTY_HOWTO (93),
619 EMPTY_HOWTO (94),
620 EMPTY_HOWTO (95),
621 EMPTY_HOWTO (96),
622 EMPTY_HOWTO (97),
623 EMPTY_HOWTO (98),
624 EMPTY_HOWTO (99),
625 EMPTY_HOWTO (100),
626 EMPTY_HOWTO (101),
627 EMPTY_HOWTO (102),
628 EMPTY_HOWTO (103),
629 EMPTY_HOWTO (104),
630 EMPTY_HOWTO (105),
631 EMPTY_HOWTO (106),
632 EMPTY_HOWTO (107),
633 EMPTY_HOWTO (108),
634 EMPTY_HOWTO (109),
635 EMPTY_HOWTO (110),
636 EMPTY_HOWTO (111),
637 EMPTY_HOWTO (112),
638 EMPTY_HOWTO (113),
639 EMPTY_HOWTO (114),
640 EMPTY_HOWTO (115),
641 EMPTY_HOWTO (116),
642 EMPTY_HOWTO (117),
643 EMPTY_HOWTO (118),
644 EMPTY_HOWTO (119),
645 EMPTY_HOWTO (120),
646 EMPTY_HOWTO (121),
647 EMPTY_HOWTO (122),
648 EMPTY_HOWTO (123),
649 EMPTY_HOWTO (124),
650 EMPTY_HOWTO (125),
651 EMPTY_HOWTO (126),
652 EMPTY_HOWTO (127),
653 EMPTY_HOWTO (128),
654 EMPTY_HOWTO (129),
655 EMPTY_HOWTO (130),
656 EMPTY_HOWTO (131),
657 EMPTY_HOWTO (132),
658 EMPTY_HOWTO (133),
659 EMPTY_HOWTO (134),
660 EMPTY_HOWTO (135),
661 EMPTY_HOWTO (136),
662 EMPTY_HOWTO (137),
663 EMPTY_HOWTO (138),
664 EMPTY_HOWTO (139),
665 EMPTY_HOWTO (140),
666 EMPTY_HOWTO (141),
667 EMPTY_HOWTO (142),
668 EMPTY_HOWTO (143),
669 EMPTY_HOWTO (144),
670 EMPTY_HOWTO (145),
671 EMPTY_HOWTO (146),
672 EMPTY_HOWTO (147),
673 EMPTY_HOWTO (148),
674 EMPTY_HOWTO (149),
675 EMPTY_HOWTO (150),
676 EMPTY_HOWTO (151),
677 EMPTY_HOWTO (152),
678 EMPTY_HOWTO (153),
679 EMPTY_HOWTO (154),
680 EMPTY_HOWTO (155),
681 EMPTY_HOWTO (156),
682 EMPTY_HOWTO (157),
683 EMPTY_HOWTO (158),
684 EMPTY_HOWTO (159),
685 EMPTY_HOWTO (160),
686 EMPTY_HOWTO (161),
687 EMPTY_HOWTO (162),
688 EMPTY_HOWTO (163),
689 EMPTY_HOWTO (164),
690 EMPTY_HOWTO (165),
691 EMPTY_HOWTO (166),
692 EMPTY_HOWTO (167),
693 EMPTY_HOWTO (168),
694 EMPTY_HOWTO (169),
695 EMPTY_HOWTO (170),
696 EMPTY_HOWTO (171),
697 EMPTY_HOWTO (172),
698 EMPTY_HOWTO (173),
699 EMPTY_HOWTO (174),
700 EMPTY_HOWTO (175),
701 EMPTY_HOWTO (176),
702 EMPTY_HOWTO (177),
703 EMPTY_HOWTO (178),
704 EMPTY_HOWTO (179),
705 EMPTY_HOWTO (180),
706 EMPTY_HOWTO (181),
707 EMPTY_HOWTO (182),
708 EMPTY_HOWTO (183),
709 EMPTY_HOWTO (184),
710 EMPTY_HOWTO (185),
711 EMPTY_HOWTO (186),
712 EMPTY_HOWTO (187),
713 EMPTY_HOWTO (188),
714 EMPTY_HOWTO (189),
715 EMPTY_HOWTO (190),
716 EMPTY_HOWTO (191),
717 EMPTY_HOWTO (192),
718 EMPTY_HOWTO (193),
719 EMPTY_HOWTO (194),
720 EMPTY_HOWTO (195),
721 EMPTY_HOWTO (196),
722 EMPTY_HOWTO (197),
723 EMPTY_HOWTO (198),
724 EMPTY_HOWTO (199),
725 EMPTY_HOWTO (200),
726 EMPTY_HOWTO (201),
727 EMPTY_HOWTO (202),
728 EMPTY_HOWTO (203),
729 EMPTY_HOWTO (204),
730 EMPTY_HOWTO (205),
731 EMPTY_HOWTO (206),
732 EMPTY_HOWTO (207),
733 EMPTY_HOWTO (208),
734 EMPTY_HOWTO (209),
735 EMPTY_HOWTO (210),
736 EMPTY_HOWTO (211),
737 EMPTY_HOWTO (212),
738 EMPTY_HOWTO (213),
739 EMPTY_HOWTO (214),
740 EMPTY_HOWTO (215),
741 EMPTY_HOWTO (216),
742 EMPTY_HOWTO (217),
743 EMPTY_HOWTO (218),
744 EMPTY_HOWTO (219),
745 EMPTY_HOWTO (220),
746 EMPTY_HOWTO (221),
747 EMPTY_HOWTO (222),
748 EMPTY_HOWTO (223),
749 EMPTY_HOWTO (224),
750 EMPTY_HOWTO (225),
751 EMPTY_HOWTO (226),
752 EMPTY_HOWTO (227),
753 EMPTY_HOWTO (228),
754 EMPTY_HOWTO (229),
755 EMPTY_HOWTO (230),
756 EMPTY_HOWTO (231),
757 EMPTY_HOWTO (232),
758 EMPTY_HOWTO (233),
759 EMPTY_HOWTO (234),
760 EMPTY_HOWTO (235),
761 EMPTY_HOWTO (236),
762 EMPTY_HOWTO (237),
763 EMPTY_HOWTO (238),
764 EMPTY_HOWTO (239),
765 EMPTY_HOWTO (240),
766 EMPTY_HOWTO (241),
767 EMPTY_HOWTO (242),
768 EMPTY_HOWTO (243),
769 EMPTY_HOWTO (244),
770 EMPTY_HOWTO (245),
771 EMPTY_HOWTO (246),
772 EMPTY_HOWTO (247),
773 EMPTY_HOWTO (248),
774 EMPTY_HOWTO (249),
775 EMPTY_HOWTO (250),
776 EMPTY_HOWTO (251),
777 EMPTY_HOWTO (252),
778 HOWTO (R_C6000_ALIGN, /* type */
779 0, /* rightshift */
780 0, /* size (0 = byte, 1 = short, 2 = long) */
781 0, /* bitsize */
782 FALSE, /* pc_relative */
783 0, /* bitpos */
784 complain_overflow_dont,/* complain_on_overflow */
785 bfd_elf_generic_reloc, /* special_function */
786 "R_C6000_ALIGN", /* name */
787 FALSE, /* partial_inplace */
788 0, /* src_mask */
789 0, /* dst_mask */
790 FALSE), /* pcrel_offset */
791 HOWTO (R_C6000_FPHEAD, /* type */
792 0, /* rightshift */
793 0, /* size (0 = byte, 1 = short, 2 = long) */
794 0, /* bitsize */
795 FALSE, /* pc_relative */
796 0, /* bitpos */
797 complain_overflow_dont,/* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_C6000_FPHEAD", /* name */
800 FALSE, /* partial_inplace */
801 0, /* src_mask */
802 0, /* dst_mask */
803 FALSE), /* pcrel_offset */
804 HOWTO (R_C6000_NOCMP, /* type */
805 0, /* rightshift */
806 0, /* size (0 = byte, 1 = short, 2 = long) */
807 0, /* bitsize */
808 FALSE, /* pc_relative */
809 0, /* bitpos */
810 complain_overflow_dont,/* complain_on_overflow */
811 bfd_elf_generic_reloc, /* special_function */
812 "R_C6000_NOCMP", /* name */
813 FALSE, /* partial_inplace */
814 0, /* src_mask */
815 0, /* dst_mask */
816 FALSE) /* pcrel_offset */
817};
818
819static reloc_howto_type elf32_tic6x_howto_table_rel[] =
820{
821 HOWTO (R_C6000_NONE, /* type */
822 0, /* rightshift */
6346d5ca 823 3, /* size (0 = byte, 1 = short, 2 = long) */
41820509
JM		 824 0, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_dont,/* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_C6000_NONE", /* name */
830 TRUE, /* partial_inplace */
40b36596
JM		 831 0, /* src_mask */
832 0, /* dst_mask */
833 FALSE), /* pcrel_offset */
834 HOWTO (R_C6000_ABS32, /* type */
835 0, /* rightshift */
836 2, /* size (0 = byte, 1 = short, 2 = long) */
837 32, /* bitsize */
838 FALSE, /* pc_relative */
839 0, /* bitpos */
840 complain_overflow_dont,/* complain_on_overflow */
841 bfd_elf_generic_reloc, /* special_function */
842 "R_C6000_ABS32", /* name */
41820509
JM		 843 TRUE, /* partial_inplace */
844 0xffffffff, /* src_mask */
40b36596
JM		 845 0xffffffff, /* dst_mask */
846 FALSE), /* pcrel_offset */
847 HOWTO (R_C6000_ABS16, /* type */
848 0, /* rightshift */
849 1, /* size (0 = byte, 1 = short, 2 = long) */
850 16, /* bitsize */
851 FALSE, /* pc_relative */
852 0, /* bitpos */
853 complain_overflow_bitfield,/* complain_on_overflow */
854 bfd_elf_generic_reloc, /* special_function */
855 "R_C6000_ABS16", /* name */
41820509
JM		 856 TRUE, /* partial_inplace */
857 0x0000ffff, /* src_mask */
40b36596
JM		 858 0x0000ffff, /* dst_mask */
859 FALSE), /* pcrel_offset */
860 HOWTO (R_C6000_ABS8, /* type */
861 0, /* rightshift */
862 0, /* size (0 = byte, 1 = short, 2 = long) */
863 8, /* bitsize */
864 FALSE, /* pc_relative */
865 0, /* bitpos */
866 complain_overflow_bitfield,/* complain_on_overflow */
867 bfd_elf_generic_reloc, /* special_function */
868 "R_C6000_ABS8", /* name */
41820509
JM		 869 TRUE, /* partial_inplace */
870 0x000000ff, /* src_mask */
40b36596
JM		 871 0x000000ff, /* dst_mask */
872 FALSE), /* pcrel_offset */
873 HOWTO (R_C6000_PCR_S21, /* type */
874 2, /* rightshift */
875 2, /* size (0 = byte, 1 = short, 2 = long) */
876 21, /* bitsize */
877 TRUE, /* pc_relative */
878 7, /* bitpos */
879 complain_overflow_signed,/* complain_on_overflow */
880 bfd_elf_generic_reloc, /* special_function */
881 "R_C6000_PCR_S21", /* name */
41820509
JM		 882 TRUE, /* partial_inplace */
883 0x0fffff80, /* src_mask */
40b36596
JM		 884 0x0fffff80, /* dst_mask */
885 TRUE), /* pcrel_offset */
886 HOWTO (R_C6000_PCR_S12, /* type */
887 2, /* rightshift */
888 2, /* size (0 = byte, 1 = short, 2 = long) */
889 12, /* bitsize */
890 TRUE, /* pc_relative */
891 16, /* bitpos */
892 complain_overflow_signed,/* complain_on_overflow */
893 bfd_elf_generic_reloc, /* special_function */
894 "R_C6000_PCR_S12", /* name */
41820509
JM		 895 TRUE, /* partial_inplace */
896 0x0fff0000, /* src_mask */
40b36596
JM		 897 0x0fff0000, /* dst_mask */
898 TRUE), /* pcrel_offset */
899 HOWTO (R_C6000_PCR_S10, /* type */
900 2, /* rightshift */
901 2, /* size (0 = byte, 1 = short, 2 = long) */
902 10, /* bitsize */
903 TRUE, /* pc_relative */
904 13, /* bitpos */
905 complain_overflow_signed,/* complain_on_overflow */
906 bfd_elf_generic_reloc, /* special_function */
907 "R_C6000_PCR_S10", /* name */
41820509
JM		 908 TRUE, /* partial_inplace */
909 0x007fe000, /* src_mask */
40b36596
JM		 910 0x007fe000, /* dst_mask */
911 TRUE), /* pcrel_offset */
912 HOWTO (R_C6000_PCR_S7, /* type */
913 2, /* rightshift */
914 2, /* size (0 = byte, 1 = short, 2 = long) */
915 7, /* bitsize */
916 TRUE, /* pc_relative */
917 16, /* bitpos */
918 complain_overflow_signed,/* complain_on_overflow */
919 bfd_elf_generic_reloc, /* special_function */
920 "R_C6000_PCR_S7", /* name */
41820509
JM		 921 TRUE, /* partial_inplace */
922 0x007f0000, /* src_mask */
40b36596
JM		 923 0x007f0000, /* dst_mask */
924 TRUE), /* pcrel_offset */
925 HOWTO (R_C6000_ABS_S16, /* type */
926 0, /* rightshift */
927 2, /* size (0 = byte, 1 = short, 2 = long) */
928 16, /* bitsize */
929 FALSE, /* pc_relative */
930 7, /* bitpos */
931 complain_overflow_signed,/* complain_on_overflow */
932 bfd_elf_generic_reloc, /* special_function */
933 "R_C6000_ABS_S16", /* name */
41820509
JM		 934 TRUE, /* partial_inplace */
935 0x007fff80, /* src_mask */
40b36596
JM		 936 0x007fff80, /* dst_mask */
937 FALSE), /* pcrel_offset */
938 HOWTO (R_C6000_ABS_L16, /* type */
939 0, /* rightshift */
940 2, /* size (0 = byte, 1 = short, 2 = long) */
941 16, /* bitsize */
942 FALSE, /* pc_relative */
943 7, /* bitpos */
944 complain_overflow_dont,/* complain_on_overflow */
945 bfd_elf_generic_reloc, /* special_function */
946 "R_C6000_ABS_L16", /* name */
41820509
JM		 947 TRUE, /* partial_inplace */
948 0x007fff80, /* src_mask */
40b36596
JM		 949 0x007fff80, /* dst_mask */
950 FALSE), /* pcrel_offset */
41820509 951 EMPTY_HOWTO (R_C6000_ABS_H16),
40b36596
JM		 952 HOWTO (R_C6000_SBR_U15_B, /* type */
953 0, /* rightshift */
954 2, /* size (0 = byte, 1 = short, 2 = long) */
955 15, /* bitsize */
956 FALSE, /* pc_relative */
957 8, /* bitpos */
958 complain_overflow_unsigned,/* complain_on_overflow */
959 bfd_elf_generic_reloc, /* special_function */
960 "R_C6000_SBR_U15_B", /* name */
41820509
JM		 961 TRUE, /* partial_inplace */
962 0x007fff00, /* src_mask */
40b36596
JM		 963 0x007fff00, /* dst_mask */
964 FALSE), /* pcrel_offset */
965 HOWTO (R_C6000_SBR_U15_H, /* type */
966 1, /* rightshift */
967 2, /* size (0 = byte, 1 = short, 2 = long) */
968 15, /* bitsize */
969 FALSE, /* pc_relative */
970 8, /* bitpos */
971 complain_overflow_unsigned,/* complain_on_overflow */
972 bfd_elf_generic_reloc, /* special_function */
973 "R_C6000_SBR_U15_H", /* name */
41820509
JM		 974 TRUE, /* partial_inplace */
975 0x007fff00, /* src_mask */
40b36596
JM		 976 0x007fff00, /* dst_mask */
977 FALSE), /* pcrel_offset */
978 HOWTO (R_C6000_SBR_U15_W, /* type */
979 2, /* rightshift */
980 2, /* size (0 = byte, 1 = short, 2 = long) */
981 15, /* bitsize */
982 FALSE, /* pc_relative */
983 8, /* bitpos */
984 complain_overflow_unsigned,/* complain_on_overflow */
985 bfd_elf_generic_reloc, /* special_function */
986 "R_C6000_SBR_U15_W", /* name */
41820509
JM		 987 TRUE, /* partial_inplace */
988 0x007fff00, /* src_mask */
40b36596
JM		 989 0x007fff00, /* dst_mask */
990 FALSE), /* pcrel_offset */
991 HOWTO (R_C6000_SBR_S16, /* type */
992 0, /* rightshift */
993 2, /* size (0 = byte, 1 = short, 2 = long) */
994 16, /* bitsize */
995 FALSE, /* pc_relative */
996 7, /* bitpos */
997 complain_overflow_signed,/* complain_on_overflow */
998 bfd_elf_generic_reloc, /* special_function */
999 "R_C6000_SBR_S16", /* name */
41820509
JM		 1000 TRUE, /* partial_inplace */
1001 0x007fff80, /* src_mask */
40b36596
JM		 1002 0x007fff80, /* dst_mask */
1003 FALSE), /* pcrel_offset */
1004 HOWTO (R_C6000_SBR_L16_B, /* type */
1005 0, /* rightshift */
1006 2, /* size (0 = byte, 1 = short, 2 = long) */
1007 16, /* bitsize */
1008 FALSE, /* pc_relative */
1009 7, /* bitpos */
1010 complain_overflow_dont,/* complain_on_overflow */
1011 bfd_elf_generic_reloc, /* special_function */
1012 "R_C6000_SBR_L16_B", /* name */
41820509
JM		 1013 TRUE, /* partial_inplace */
1014 0x007fff80, /* src_mask */
40b36596
JM		 1015 0x007fff80, /* dst_mask */
1016 FALSE), /* pcrel_offset */
1017 HOWTO (R_C6000_SBR_L16_H, /* type */
1018 1, /* rightshift */
1019 2, /* size (0 = byte, 1 = short, 2 = long) */
1020 16, /* bitsize */
1021 FALSE, /* pc_relative */
1022 7, /* bitpos */
1023 complain_overflow_dont,/* complain_on_overflow */
1024 bfd_elf_generic_reloc, /* special_function */
1025 "R_C6000_SBR_L16_H", /* name */
41820509
JM		 1026 TRUE, /* partial_inplace */
1027 0x007fff80, /* src_mask */
40b36596
JM		 1028 0x007fff80, /* dst_mask */
1029 FALSE), /* pcrel_offset */
1030 HOWTO (R_C6000_SBR_L16_W, /* type */
1031 2, /* rightshift */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1033 16, /* bitsize */
1034 FALSE, /* pc_relative */
1035 7, /* bitpos */
1036 complain_overflow_dont,/* complain_on_overflow */
1037 bfd_elf_generic_reloc, /* special_function */
1038 "R_C6000_SBR_L16_W", /* name */
41820509
JM		 1039 TRUE, /* partial_inplace */
1040 0x007fff80, /* src_mask */
40b36596
JM		 1041 0x007fff80, /* dst_mask */
1042 FALSE), /* pcrel_offset */
41820509
JM		 1043 EMPTY_HOWTO (R_C6000_SBR_H16_B),
1044 EMPTY_HOWTO (R_C6000_SBR_H16_H),
1045 EMPTY_HOWTO (R_C6000_SBR_H16_W),
40b36596
JM		 1046 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
1047 2, /* rightshift */
1048 2, /* size (0 = byte, 1 = short, 2 = long) */
1049 15, /* bitsize */
1050 FALSE, /* pc_relative */
1051 8, /* bitpos */
1052 complain_overflow_unsigned,/* complain_on_overflow */
1053 bfd_elf_generic_reloc, /* special_function */
1054 "R_C6000_SBR_GOT_U15_W",/* name */
41820509
JM		 1055 TRUE, /* partial_inplace */
1056 0x007fff00, /* src_mask */
40b36596
JM		 1057 0x007fff00, /* dst_mask */
1058 FALSE), /* pcrel_offset */
1059 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
1060 2, /* rightshift */
1061 2, /* size (0 = byte, 1 = short, 2 = long) */
1062 16, /* bitsize */
1063 FALSE, /* pc_relative */
1064 7, /* bitpos */
1065 complain_overflow_dont,/* complain_on_overflow */
1066 bfd_elf_generic_reloc, /* special_function */
1067 "R_C6000_SBR_GOT_L16_W",/* name */
41820509
JM		 1068 TRUE, /* partial_inplace */
1069 0x007fff80, /* src_mask */
40b36596
JM		 1070 0x007fff80, /* dst_mask */
1071 FALSE), /* pcrel_offset */
41820509 1072 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W),
40b36596
JM		 1073 HOWTO (R_C6000_DSBT_INDEX, /* type */
1074 0, /* rightshift */
1075 2, /* size (0 = byte, 1 = short, 2 = long) */
1076 15, /* bitsize */
1077 FALSE, /* pc_relative */
1078 8, /* bitpos */
1079 complain_overflow_unsigned,/* complain_on_overflow */
1080 bfd_elf_generic_reloc, /* special_function */
1081 "R_C6000_DSBT_INDEX", /* name */
41820509 1082 TRUE, /* partial_inplace */
40b36596
JM		 1083 0, /* src_mask */
1084 0x007fff00, /* dst_mask */
1085 FALSE), /* pcrel_offset */
1086 HOWTO (R_C6000_PREL31, /* type */
1087 1, /* rightshift */
1088 2, /* size (0 = byte, 1 = short, 2 = long) */
1089 31, /* bitsize */
44e87ece 1090 TRUE, /* pc_relative */
40b36596
JM		 1091 0, /* bitpos */
1092 complain_overflow_dont,/* complain_on_overflow */
1093 bfd_elf_generic_reloc, /* special_function */
1094 "R_C6000_PREL31", /* name */
41820509 1095 TRUE, /* partial_inplace */
40b36596
JM		 1096 0, /* src_mask */
1097 0x7fffffff, /* dst_mask */
44e87ece 1098 TRUE), /* pcrel_offset */
40b36596
JM		 1099 HOWTO (R_C6000_COPY, /* type */
1100 0, /* rightshift */
1101 2, /* size (0 = byte, 1 = short, 2 = long) */
1102 32, /* bitsize */
1103 FALSE, /* pc_relative */
1104 0, /* bitpos */
1105 complain_overflow_dont,/* complain_on_overflow */
1106 bfd_elf_generic_reloc, /* special_function */
1107 "R_C6000_COPY", /* name */
41820509 1108 TRUE, /* partial_inplace */
40b36596
JM		 1109 0, /* src_mask */
1110 0xffffffff, /* dst_mask */
1111 FALSE), /* pcrel_offset */
ac145307
BS		 1112 HOWTO (R_C6000_JUMP_SLOT, /* type */
1113 0, /* rightshift */
1114 2, /* size (0 = byte, 1 = short, 2 = long) */
1115 32, /* bitsize */
1116 FALSE, /* pc_relative */
1117 0, /* bitpos */
1118 complain_overflow_dont,/* complain_on_overflow */
1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_C6000_JUMP_SLOT", /* name */
1121 FALSE, /* partial_inplace */
1122 0, /* src_mask */
1123 0xffffffff, /* dst_mask */
1124 FALSE), /* pcrel_offset */
2fbb87f6
PB		 1125 HOWTO (R_C6000_EHTYPE, /* type */
1126 0, /* rightshift */
1127 2, /* size (0 = byte, 1 = short, 2 = long) */
1128 32, /* bitsize */
1129 FALSE, /* pc_relative */
1130 0, /* bitpos */
1131 complain_overflow_dont,/* complain_on_overflow */
1132 bfd_elf_generic_reloc, /* special_function */
1133 "R_C6000_EHTYPE", /* name */
1134 FALSE, /* partial_inplace */
1135 0, /* src_mask */
1136 0xffffffff, /* dst_mask */
1137 FALSE), /* pcrel_offset */
4a732032
BS		 1138 EMPTY_HOWTO (R_C6000_PCR_H16),
1139 EMPTY_HOWTO (R_C6000_PCR_L16),
40b36596
JM		 1140 EMPTY_HOWTO (31),
1141 EMPTY_HOWTO (32),
1142 EMPTY_HOWTO (33),
1143 EMPTY_HOWTO (34),
1144 EMPTY_HOWTO (35),
1145 EMPTY_HOWTO (36),
1146 EMPTY_HOWTO (37),
1147 EMPTY_HOWTO (38),
1148 EMPTY_HOWTO (39),
1149 EMPTY_HOWTO (40),
1150 EMPTY_HOWTO (41),
1151 EMPTY_HOWTO (42),
1152 EMPTY_HOWTO (43),
1153 EMPTY_HOWTO (44),
1154 EMPTY_HOWTO (45),
1155 EMPTY_HOWTO (46),
1156 EMPTY_HOWTO (47),
1157 EMPTY_HOWTO (48),
1158 EMPTY_HOWTO (49),
1159 EMPTY_HOWTO (50),
1160 EMPTY_HOWTO (51),
1161 EMPTY_HOWTO (52),
1162 EMPTY_HOWTO (53),
1163 EMPTY_HOWTO (54),
1164 EMPTY_HOWTO (55),
1165 EMPTY_HOWTO (56),
1166 EMPTY_HOWTO (57),
1167 EMPTY_HOWTO (58),
1168 EMPTY_HOWTO (59),
1169 EMPTY_HOWTO (60),
1170 EMPTY_HOWTO (61),
1171 EMPTY_HOWTO (62),
1172 EMPTY_HOWTO (63),
1173 EMPTY_HOWTO (64),
1174 EMPTY_HOWTO (65),
1175 EMPTY_HOWTO (66),
1176 EMPTY_HOWTO (67),
1177 EMPTY_HOWTO (68),
1178 EMPTY_HOWTO (69),
1179 EMPTY_HOWTO (70),
1180 EMPTY_HOWTO (71),
1181 EMPTY_HOWTO (72),
1182 EMPTY_HOWTO (73),
1183 EMPTY_HOWTO (74),
1184 EMPTY_HOWTO (75),
1185 EMPTY_HOWTO (76),
1186 EMPTY_HOWTO (77),
1187 EMPTY_HOWTO (78),
1188 EMPTY_HOWTO (79),
1189 EMPTY_HOWTO (80),
1190 EMPTY_HOWTO (81),
1191 EMPTY_HOWTO (82),
1192 EMPTY_HOWTO (83),
1193 EMPTY_HOWTO (84),
1194 EMPTY_HOWTO (85),
1195 EMPTY_HOWTO (86),
1196 EMPTY_HOWTO (87),
1197 EMPTY_HOWTO (88),
1198 EMPTY_HOWTO (89),
1199 EMPTY_HOWTO (90),
1200 EMPTY_HOWTO (91),
1201 EMPTY_HOWTO (92),
1202 EMPTY_HOWTO (93),
1203 EMPTY_HOWTO (94),
1204 EMPTY_HOWTO (95),
1205 EMPTY_HOWTO (96),
1206 EMPTY_HOWTO (97),
1207 EMPTY_HOWTO (98),
1208 EMPTY_HOWTO (99),
1209 EMPTY_HOWTO (100),
1210 EMPTY_HOWTO (101),
1211 EMPTY_HOWTO (102),
1212 EMPTY_HOWTO (103),
1213 EMPTY_HOWTO (104),
1214 EMPTY_HOWTO (105),
1215 EMPTY_HOWTO (106),
1216 EMPTY_HOWTO (107),
1217 EMPTY_HOWTO (108),
1218 EMPTY_HOWTO (109),
1219 EMPTY_HOWTO (110),
1220 EMPTY_HOWTO (111),
1221 EMPTY_HOWTO (112),
1222 EMPTY_HOWTO (113),
1223 EMPTY_HOWTO (114),
1224 EMPTY_HOWTO (115),
1225 EMPTY_HOWTO (116),
1226 EMPTY_HOWTO (117),
1227 EMPTY_HOWTO (118),
1228 EMPTY_HOWTO (119),
1229 EMPTY_HOWTO (120),
1230 EMPTY_HOWTO (121),
1231 EMPTY_HOWTO (122),
1232 EMPTY_HOWTO (123),
1233 EMPTY_HOWTO (124),
1234 EMPTY_HOWTO (125),
1235 EMPTY_HOWTO (126),
1236 EMPTY_HOWTO (127),
1237 EMPTY_HOWTO (128),
1238 EMPTY_HOWTO (129),
1239 EMPTY_HOWTO (130),
1240 EMPTY_HOWTO (131),
1241 EMPTY_HOWTO (132),
1242 EMPTY_HOWTO (133),
1243 EMPTY_HOWTO (134),
1244 EMPTY_HOWTO (135),
1245 EMPTY_HOWTO (136),
1246 EMPTY_HOWTO (137),
1247 EMPTY_HOWTO (138),
1248 EMPTY_HOWTO (139),
1249 EMPTY_HOWTO (140),
1250 EMPTY_HOWTO (141),
1251 EMPTY_HOWTO (142),
1252 EMPTY_HOWTO (143),
1253 EMPTY_HOWTO (144),
1254 EMPTY_HOWTO (145),
1255 EMPTY_HOWTO (146),
1256 EMPTY_HOWTO (147),
1257 EMPTY_HOWTO (148),
1258 EMPTY_HOWTO (149),
1259 EMPTY_HOWTO (150),
1260 EMPTY_HOWTO (151),
1261 EMPTY_HOWTO (152),
1262 EMPTY_HOWTO (153),
1263 EMPTY_HOWTO (154),
1264 EMPTY_HOWTO (155),
1265 EMPTY_HOWTO (156),
1266 EMPTY_HOWTO (157),
1267 EMPTY_HOWTO (158),
1268 EMPTY_HOWTO (159),
1269 EMPTY_HOWTO (160),
1270 EMPTY_HOWTO (161),
1271 EMPTY_HOWTO (162),
1272 EMPTY_HOWTO (163),
1273 EMPTY_HOWTO (164),
1274 EMPTY_HOWTO (165),
1275 EMPTY_HOWTO (166),
1276 EMPTY_HOWTO (167),
1277 EMPTY_HOWTO (168),
1278 EMPTY_HOWTO (169),
1279 EMPTY_HOWTO (170),
1280 EMPTY_HOWTO (171),
1281 EMPTY_HOWTO (172),
1282 EMPTY_HOWTO (173),
1283 EMPTY_HOWTO (174),
1284 EMPTY_HOWTO (175),
1285 EMPTY_HOWTO (176),
1286 EMPTY_HOWTO (177),
1287 EMPTY_HOWTO (178),
1288 EMPTY_HOWTO (179),
1289 EMPTY_HOWTO (180),
1290 EMPTY_HOWTO (181),
1291 EMPTY_HOWTO (182),
1292 EMPTY_HOWTO (183),
1293 EMPTY_HOWTO (184),
1294 EMPTY_HOWTO (185),
1295 EMPTY_HOWTO (186),
1296 EMPTY_HOWTO (187),
1297 EMPTY_HOWTO (188),
1298 EMPTY_HOWTO (189),
1299 EMPTY_HOWTO (190),
1300 EMPTY_HOWTO (191),
1301 EMPTY_HOWTO (192),
1302 EMPTY_HOWTO (193),
1303 EMPTY_HOWTO (194),
1304 EMPTY_HOWTO (195),
1305 EMPTY_HOWTO (196),
1306 EMPTY_HOWTO (197),
1307 EMPTY_HOWTO (198),
1308 EMPTY_HOWTO (199),
1309 EMPTY_HOWTO (200),
1310 EMPTY_HOWTO (201),
1311 EMPTY_HOWTO (202),
1312 EMPTY_HOWTO (203),
1313 EMPTY_HOWTO (204),
1314 EMPTY_HOWTO (205),
1315 EMPTY_HOWTO (206),
1316 EMPTY_HOWTO (207),
1317 EMPTY_HOWTO (208),
1318 EMPTY_HOWTO (209),
1319 EMPTY_HOWTO (210),
1320 EMPTY_HOWTO (211),
1321 EMPTY_HOWTO (212),
1322 EMPTY_HOWTO (213),
1323 EMPTY_HOWTO (214),
1324 EMPTY_HOWTO (215),
1325 EMPTY_HOWTO (216),
1326 EMPTY_HOWTO (217),
1327 EMPTY_HOWTO (218),
1328 EMPTY_HOWTO (219),
1329 EMPTY_HOWTO (220),
1330 EMPTY_HOWTO (221),
1331 EMPTY_HOWTO (222),
1332 EMPTY_HOWTO (223),
1333 EMPTY_HOWTO (224),
1334 EMPTY_HOWTO (225),
1335 EMPTY_HOWTO (226),
1336 EMPTY_HOWTO (227),
1337 EMPTY_HOWTO (228),
1338 EMPTY_HOWTO (229),
1339 EMPTY_HOWTO (230),
1340 EMPTY_HOWTO (231),
1341 EMPTY_HOWTO (232),
1342 EMPTY_HOWTO (233),
1343 EMPTY_HOWTO (234),
1344 EMPTY_HOWTO (235),
1345 EMPTY_HOWTO (236),
1346 EMPTY_HOWTO (237),
1347 EMPTY_HOWTO (238),
1348 EMPTY_HOWTO (239),
1349 EMPTY_HOWTO (240),
1350 EMPTY_HOWTO (241),
1351 EMPTY_HOWTO (242),
1352 EMPTY_HOWTO (243),
1353 EMPTY_HOWTO (244),
1354 EMPTY_HOWTO (245),
1355 EMPTY_HOWTO (246),
1356 EMPTY_HOWTO (247),
1357 EMPTY_HOWTO (248),
1358 EMPTY_HOWTO (249),
1359 EMPTY_HOWTO (250),
1360 EMPTY_HOWTO (251),
1361 EMPTY_HOWTO (252),
1362 HOWTO (R_C6000_ALIGN, /* type */
1363 0, /* rightshift */
1364 0, /* size (0 = byte, 1 = short, 2 = long) */
1365 0, /* bitsize */
1366 FALSE, /* pc_relative */
1367 0, /* bitpos */
1368 complain_overflow_dont,/* complain_on_overflow */
1369 bfd_elf_generic_reloc, /* special_function */
1370 "R_C6000_ALIGN", /* name */
41820509 1371 TRUE, /* partial_inplace */
40b36596
JM		 1372 0, /* src_mask */
1373 0, /* dst_mask */
1374 FALSE), /* pcrel_offset */
1375 HOWTO (R_C6000_FPHEAD, /* type */
1376 0, /* rightshift */
1377 0, /* size (0 = byte, 1 = short, 2 = long) */
1378 0, /* bitsize */
1379 FALSE, /* pc_relative */
1380 0, /* bitpos */
1381 complain_overflow_dont,/* complain_on_overflow */
1382 bfd_elf_generic_reloc, /* special_function */
1383 "R_C6000_FPHEAD", /* name */
41820509 1384 TRUE, /* partial_inplace */
40b36596
JM		 1385 0, /* src_mask */
1386 0, /* dst_mask */
1387 FALSE), /* pcrel_offset */
1388 HOWTO (R_C6000_NOCMP, /* type */
1389 0, /* rightshift */
1390 0, /* size (0 = byte, 1 = short, 2 = long) */
1391 0, /* bitsize */
1392 FALSE, /* pc_relative */
1393 0, /* bitpos */
1394 complain_overflow_dont,/* complain_on_overflow */
1395 bfd_elf_generic_reloc, /* special_function */
1396 "R_C6000_NOCMP", /* name */
41820509 1397 TRUE, /* partial_inplace */
40b36596
JM		 1398 0, /* src_mask */
1399 0, /* dst_mask */
1400 FALSE) /* pcrel_offset */
1401};
1402
1403/* Map BFD relocations to ELF relocations. */
1404
1405typedef struct
1406{
1407 bfd_reloc_code_real_type bfd_reloc_val;
1408 enum elf_tic6x_reloc_type elf_reloc_val;
1409} tic6x_reloc_map;
1410
1411static const tic6x_reloc_map elf32_tic6x_reloc_map[] =
1412 {
1413 { BFD_RELOC_NONE, R_C6000_NONE },
1414 { BFD_RELOC_32, R_C6000_ABS32 },
1415 { BFD_RELOC_16, R_C6000_ABS16 },
1416 { BFD_RELOC_8, R_C6000_ABS8 },
1417 { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 },
1418 { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 },
1419 { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 },
1420 { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 },
1421 { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 },
1422 { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 },
1423 { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 },
1424 { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B },
1425 { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H },
1426 { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W },
1427 { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 },
1428 { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B },
1429 { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H },
1430 { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W },
1431 { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B },
1432 { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H },
1433 { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W },
1434 { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W },
1435 { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W },
1436 { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W },
1437 { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX },
1438 { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 },
1439 { BFD_RELOC_C6000_COPY, R_C6000_COPY },
ac145307
BS		 1440 { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT },
1441 { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE },
1442 { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 },
1443 { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 },
40b36596
JM		 1444 { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN },
1445 { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD },
1446 { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP }
1447 };
1448
1449static reloc_howto_type *
41820509 1450elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
40b36596
JM		 1451{
1452 unsigned int i;
1453
1454 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++)
1455 if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code)
41820509
JM		 1456 {
1457 enum elf_tic6x_reloc_type elf_reloc_val;
1458 reloc_howto_type *howto;
1459
1460 elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val;
1461 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1462 howto = &elf32_tic6x_howto_table[elf_reloc_val];
1463 else
1464 howto = &elf32_tic6x_howto_table_rel[elf_reloc_val];
1465
1466 /* Some relocations are RELA-only; do not return them for
1467 REL. */
1468 if (howto->name == NULL)
1469 howto = NULL;
1470
1471 return howto;
1472 }
40b36596
JM		 1473
1474 return NULL;
1475}
1476
1477static reloc_howto_type *
41820509 1478elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name)
40b36596 1479{
41820509
JM		 1480 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1481 {
1482 unsigned int i;
1483
1484 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++)
1485 if (elf32_tic6x_howto_table[i].name != NULL
1486 && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0)
1487 return &elf32_tic6x_howto_table[i];
1488 }
1489 else
1490 {
1491 unsigned int i;
40b36596 1492
41820509
JM		 1493 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++)
1494 if (elf32_tic6x_howto_table_rel[i].name != NULL
1495 && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0)
1496 return &elf32_tic6x_howto_table_rel[i];
1497 }
40b36596
JM		 1498
1499 return NULL;
1500}
1501
1502static void
1503elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1504 Elf_Internal_Rela *elf_reloc)
1505{
1506 unsigned int r_type;
1507
1508 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1509 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table))
1510 bfd_reloc->howto = NULL;
1511 else
1512 bfd_reloc->howto = &elf32_tic6x_howto_table[r_type];
1513}
1514
41820509
JM		 1515static void
1516elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1517 Elf_Internal_Rela *elf_reloc)
1518{
1519 unsigned int r_type;
1520
1521 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1522 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel))
1523 bfd_reloc->howto = NULL;
1524 else
1525 bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type];
1526}
1527
1528void
1529elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p)
1530{
1531 elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p;
1532}
1533
ac145307
BS		 1534/* Create an entry in a C6X ELF linker hash table. */
1535
1536static struct bfd_hash_entry *
1537elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry,
1538 struct bfd_hash_table *table,
1539 const char *string)
1540{
1541 /* Allocate the structure if it has not already been allocated by a
1542 subclass. */
1543 if (entry == NULL)
1544 {
1545 entry = bfd_hash_allocate (table,
1546 sizeof (struct elf32_tic6x_link_hash_entry));
1547 if (entry == NULL)
1548 return entry;
1549 }
1550
1551 /* Call the allocation method of the superclass. */
1552 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1553 if (entry != NULL)
1554 {
1555 struct elf32_tic6x_link_hash_entry *eh;
1556
1557 eh = (struct elf32_tic6x_link_hash_entry *) entry;
1558 eh->dyn_relocs = NULL;
1559 }
1560
1561 return entry;
1562}
1563
1564/* Create a C6X ELF linker hash table. */
1565
1566static struct bfd_link_hash_table *
1567elf32_tic6x_link_hash_table_create (bfd *abfd)
1568{
1569 struct elf32_tic6x_link_hash_table *ret;
1570 bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table);
1571
7bf52ea2 1572 ret = bfd_zmalloc (amt);
ac145307
BS		 1573 if (ret == NULL)
1574 return NULL;
1575
1576 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1577 elf32_tic6x_link_hash_newfunc,
1578 sizeof (struct elf32_tic6x_link_hash_entry),
1579 TIC6X_ELF_DATA))
1580 {
1581 free (ret);
1582 return NULL;
1583 }
1584
ac145307
BS		 1585 ret->obfd = abfd;
1586 ret->elf.is_relocatable_executable = 1;
1587
1588 return &ret->elf.root;
1589}
1590
c6a8f6e0
BS		 1591static bfd_boolean
1592elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info)
1593{
0e1862bb 1594 if (bfd_link_pic (info))
c6a8f6e0
BS		 1595 {
1596 obj_attribute *out_attr;
1597 out_attr = elf_known_obj_attributes_proc (abfd);
1598 if (out_attr[Tag_ABI_PIC].i == 0)
1599 {
1600 _bfd_error_handler (_("warning: generating a shared library "
1601 "containing non-PIC code"));
1602 }
1603 if (out_attr[Tag_ABI_PID].i == 0)
1604 {
1605 _bfd_error_handler (_("warning: generating a shared library "
1606 "containing non-PID code"));
1607 }
1608 }
1609 /* Invoke the regular ELF backend linker to do all the work. */
1610 if (!bfd_elf_final_link (abfd, info))
1611 return FALSE;
1612
1613 return TRUE;
1614}
1615
ac145307
BS		 1616/* Called to pass PARAMS to the backend. We store them in the hash table
1617 associated with INFO. */
1618
1619void
1620elf32_tic6x_setup (struct bfd_link_info *info,
1621 struct elf32_tic6x_params *params)
1622{
1623 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info);
1624 htab->params = *params;
1625}
1626
1627/* Determine if we're dealing with a DSBT object. */
1628
1629static bfd_boolean
1630elf32_tic6x_using_dsbt (bfd *abfd)
1631{
1632 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC,
1633 Tag_ABI_DSBT);
1634}
1635
1636/* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
1637 sections in DYNOBJ, and set up shortcuts to them in our hash
1638 table. */
1639
1640static bfd_boolean
1641elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
1642{
1643 struct elf32_tic6x_link_hash_table *htab;
1644 flagword flags;
1645
1646 htab = elf32_tic6x_hash_table (info);
1647 if (htab == NULL)
1648 return FALSE;
1649
1650 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1651 return FALSE;
1652
1653 /* Create .dsbt */
1654 flags = (SEC_ALLOC | SEC_LOAD
1655 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1656 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt",
1657 flags);
1658 if (htab->dsbt == NULL
1659 || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2)
1660 || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5))
1661 return FALSE;
1662
3d4d4302 1663 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
0e1862bb 1664 if (!bfd_link_pic (info))
3d4d4302 1665 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
ac145307
BS		 1666
1667 if (!htab->sdynbss
0e1862bb 1668 || (!bfd_link_pic (info) && !htab->srelbss))
ac145307
BS		 1669 abort ();
1670
1671 return TRUE;
1672}
1673
41820509
JM		 1674static bfd_boolean
1675elf32_tic6x_mkobject (bfd *abfd)
1676{
1677 bfd_boolean ret;
1678
1679 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
1680 TIC6X_ELF_DATA);
1681 if (ret)
1682 elf32_tic6x_set_use_rela_p (abfd, TRUE);
1683 return ret;
1684}
1685
ac145307
BS		 1686/* Install relocation RELA into section SRELA, incrementing its
1687 reloc_count. */
1688
1689static void
1690elf32_tic6x_install_rela (bfd *output_bfd, asection *srela,
1691 Elf_Internal_Rela *rela)
1692{
1693 bfd_byte *loc;
1694 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela);
1695 loc = srela->contents + off;
1696 BFD_ASSERT (off < srela->size);
1697 bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
1698}
1699
1700/* Create a dynamic reloc against the GOT at offset OFFSET. The contents
1701 of the GOT at this offset have been initialized with the relocation. */
1702
1703static void
1704elf32_tic6x_make_got_dynreloc (bfd *output_bfd,
1705 struct elf32_tic6x_link_hash_table *htab,
1706 asection *sym_sec, bfd_vma offset)
1707{
1708 asection *sgot = htab->elf.sgot;
1709 Elf_Internal_Rela outrel;
1710 int dynindx;
1711
1712 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset;
1713 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
1714 if (sym_sec && sym_sec->output_section
1715 && ! bfd_is_abs_section (sym_sec->output_section)
1716 && ! bfd_is_und_section (sym_sec->output_section))
1717 {
1718 dynindx = elf_section_data (sym_sec->output_section)->dynindx;
1719 outrel.r_addend -= sym_sec->output_section->vma;
1720 }
1721 else
1722 {
1723 dynindx = 0;
1724 }
1725 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32);
1726 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel);
1727}
1728
1729/* Finish up dynamic symbol handling. We set the contents of various
1730 dynamic sections here. */
1731
1732static bfd_boolean
1733elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd,
1734 struct bfd_link_info *info,
1735 struct elf_link_hash_entry *h,
1736 Elf_Internal_Sym * sym)
1737{
1738 bfd *dynobj;
1739 struct elf32_tic6x_link_hash_table *htab;
1740
1741 htab = elf32_tic6x_hash_table (info);
1742 dynobj = htab->elf.dynobj;
1743
1744 if (h->plt.offset != (bfd_vma) -1)
1745 {
1746 bfd_vma plt_index;
1747 bfd_vma got_section_offset, got_dp_offset, rela_offset;
1748 Elf_Internal_Rela rela;
1749 bfd_byte *loc;
1750 asection *plt, *gotplt, *relplt;
1751 const struct elf_backend_data *bed;
1752
1753 bed = get_elf_backend_data (output_bfd);
1754
1755 BFD_ASSERT (htab->elf.splt != NULL);
1756 plt = htab->elf.splt;
1757 gotplt = htab->elf.sgotplt;
1758 relplt = htab->elf.srelplt;
1759
1760 /* This symbol has an entry in the procedure linkage table. Set
1761 it up. */
1762
1763 if ((h->dynindx == -1
0e1862bb 1764 && !((h->forced_local || bfd_link_executable (info))
ac145307
BS		 1765 && h->def_regular
1766 && h->type == STT_GNU_IFUNC))
1767 || plt == NULL
1768 || gotplt == NULL
1769 || relplt == NULL)
1770 abort ();
1771
1772 /* Get the index in the procedure linkage table which
1773 corresponds to this symbol. This is the index of this symbol
1774 in all the symbols for which we are making plt entries. The
1775 first entry in the procedure linkage table is reserved.
1776
1777 Get the offset into the .got table of the entry that
1778 corresponds to this function. Each .got entry is 4 bytes.
1779 The first three are reserved.
68ffbac6 1780
ac145307
BS		 1781 For static executables, we don't reserve anything. */
1782
1783 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1784 got_section_offset = plt_index + bed->got_header_size / 4;
1785 got_dp_offset = got_section_offset + htab->params.dsbt_size;
1786 rela_offset = plt_index * sizeof (Elf32_External_Rela);
1787
1788 got_section_offset *= 4;
1789
1790 /* Fill in the entry in the procedure linkage table. */
1791
1792 /* ldw .d2t2 *+B14($GOT(f)), b2 */
1793 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e,
1794 plt->contents + h->plt.offset);
1795 /* mvk .s2 low(rela_offset), b0 */
1796 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a,
1797 plt->contents + h->plt.offset + 4);
1798 /* mvkh .s2 high(rela_offset), b0 */
1799 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a,
1800 plt->contents + h->plt.offset + 8);
1801 /* nop 2 */
1802 bfd_put_32 (output_bfd, 0x00002000,
1803 plt->contents + h->plt.offset + 12);
1804 /* b .s2 b2 */
1805 bfd_put_32 (output_bfd, 0x00080362,
1806 plt->contents + h->plt.offset + 16);
1807 /* nop 5 */
1808 bfd_put_32 (output_bfd, 0x00008000,
1809 plt->contents + h->plt.offset + 20);
1810
1811 /* Fill in the entry in the global offset table. */
1812 bfd_put_32 (output_bfd,
1813 (plt->output_section->vma + plt->output_offset),
1814 gotplt->contents + got_section_offset);
1815
1816 /* Fill in the entry in the .rel.plt section. */
1817 rela.r_offset = (gotplt->output_section->vma
1818 + gotplt->output_offset
1819 + got_section_offset);
1820 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT);
1821 rela.r_addend = 0;
1822 loc = relplt->contents + rela_offset;
1823 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1824
1825 if (!h->def_regular)
1826 {
1827 /* Mark the symbol as undefined, rather than as defined in
1828 the .plt section. */
1829 sym->st_shndx = SHN_UNDEF;
1830 sym->st_value = 0;
1831 }
1832 }
1833
1834 if (h->got.offset != (bfd_vma) -1)
1835 {
1836 asection *sgot;
1837 asection *srela;
1838
1839 /* This symbol has an entry in the global offset table.
1840 Set it up. */
1841
3d4d4302
AM		 1842 sgot = bfd_get_linker_section (dynobj, ".got");
1843 srela = bfd_get_linker_section (dynobj, ".rela.got");
ac145307
BS		 1844 BFD_ASSERT (sgot != NULL && srela != NULL);
1845
1846 /* If this is a -Bsymbolic link, and the symbol is defined
1847 locally, we just want to emit a RELATIVE reloc. Likewise if
1848 the symbol was forced to be local because of a version file.
1849 The entry in the global offset table will already have been
1850 initialized in the relocate_section function. */
0e1862bb 1851 if (bfd_link_pic (info)
a496fbc8 1852 && (SYMBOLIC_BIND (info, h)
ac145307
BS		 1853 || h->dynindx == -1 || h->forced_local) && h->def_regular)
1854 {
1855 asection *s = h->root.u.def.section;
1856 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s,
1857 h->got.offset & ~(bfd_vma) 1);
1858 }
1859 else
1860 {
1861 Elf_Internal_Rela outrel;
1862 bfd_put_32 (output_bfd, (bfd_vma) 0,
1863 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
1864 outrel.r_offset = (sgot->output_section->vma
1865 + sgot->output_offset
1866 + (h->got.offset & ~(bfd_vma) 1));
1867 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32);
1868 outrel.r_addend = 0;
1869
1870 elf32_tic6x_install_rela (output_bfd, srela, &outrel);
1871 }
1872 }
1873
1874 if (h->needs_copy)
1875 {
1876 Elf_Internal_Rela rel;
1877
1878 /* This symbol needs a copy reloc. Set it up. */
1879
1880 if (h->dynindx == -1
1881 || (h->root.type != bfd_link_hash_defined
1882 && h->root.type != bfd_link_hash_defweak)
1883 || htab->srelbss == NULL)
1884 abort ();
1885
1886 rel.r_offset = (h->root.u.def.value
1887 + h->root.u.def.section->output_section->vma
1888 + h->root.u.def.section->output_offset);
1889 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY);
1890 rel.r_addend = 0;
1891
1892 elf32_tic6x_install_rela (output_bfd, htab->srelbss, &rel);
1893 }
1894
1895 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 1896 if (h == elf_hash_table (info)->hdynamic
ac145307
BS		 1897 || h == elf_hash_table (info)->hgot)
1898 sym->st_shndx = SHN_ABS;
1899
1900 return TRUE;
1901}
1902
9cf0e282
PB		 1903/* Unwinding tables are not referenced directly. This pass marks them as
1904 required if the corresponding code section is marked. */
1905
1906static bfd_boolean
1907elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info,
1908 elf_gc_mark_hook_fn gc_mark_hook)
1909{
1910 bfd *sub;
1911 Elf_Internal_Shdr **elf_shdrp;
1912 bfd_boolean again;
1913
7f6ab9f8
AM		 1914 _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook);
1915
9cf0e282
PB		 1916 /* Marking EH data may cause additional code sections to be marked,
1917 requiring multiple passes. */
1918 again = TRUE;
1919 while (again)
1920 {
1921 again = FALSE;
c72f2fb2 1922 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
9cf0e282
PB		 1923 {
1924 asection *o;
1925
1926 if (! is_tic6x_elf (sub))
1927 continue;
1928
1929 elf_shdrp = elf_elfsections (sub);
1930 for (o = sub->sections; o != NULL; o = o->next)
1931 {
1932 Elf_Internal_Shdr *hdr;
1933
1934 hdr = &elf_section_data (o)->this_hdr;
1935 if (hdr->sh_type == SHT_C6000_UNWIND
1936 && hdr->sh_link
1937 && hdr->sh_link < elf_numsections (sub)
1938 && !o->gc_mark
1939 && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark)
1940 {
1941 again = TRUE;
1942 if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
1943 return FALSE;
1944 }
1945 }
1946 }
1947 }
1948
1949 return TRUE;
1950}
1951
1bce6bd8
PB		 1952/* Return TRUE if this is an unwinding table index. */
1953
1954static bfd_boolean
1955is_tic6x_elf_unwind_section_name (const char *name)
1956{
1957 return (CONST_STRNEQ (name, ELF_STRING_C6000_unwind)
1958 || CONST_STRNEQ (name, ELF_STRING_C6000_unwind_once));
1959}
1960
1961
1962/* Set the type and flags for an unwinding index table. We do this by
1963 the section name, which is a hack, but ought to work. */
1964
1965static bfd_boolean
1966elf32_tic6x_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1967 Elf_Internal_Shdr *hdr, asection *sec)
1968{
1969 const char * name;
1970
1971 name = bfd_get_section_name (abfd, sec);
1972
1973 if (is_tic6x_elf_unwind_section_name (name))
1974 {
1975 hdr->sh_type = SHT_C6000_UNWIND;
1976 hdr->sh_flags |= SHF_LINK_ORDER;
1977 }
1978
1979 return TRUE;
1980}
1981
ac145307
BS		 1982/* Update the got entry reference counts for the section being removed. */
1983
1984static bfd_boolean
1985elf32_tic6x_gc_sweep_hook (bfd *abfd,
1986 struct bfd_link_info *info,
1987 asection *sec,
1988 const Elf_Internal_Rela *relocs)
1989{
1990 struct elf32_tic6x_link_hash_table *htab;
1991 Elf_Internal_Shdr *symtab_hdr;
1992 struct elf_link_hash_entry **sym_hashes;
1993 bfd_signed_vma *local_got_refcounts;
1994 const Elf_Internal_Rela *rel, *relend;
1995
0e1862bb 1996 if (bfd_link_relocatable (info))
ac145307
BS		 1997 return TRUE;
1998
1999 htab = elf32_tic6x_hash_table (info);
2000 if (htab == NULL)
2001 return FALSE;
2002
2003 elf_section_data (sec)->local_dynrel = NULL;
2004
2005 symtab_hdr = &elf_symtab_hdr (abfd);
2006 sym_hashes = elf_sym_hashes (abfd);
2007 local_got_refcounts = elf_local_got_refcounts (abfd);
2008
2009 relend = relocs + sec->reloc_count;
2010 for (rel = relocs; rel < relend; rel++)
2011 {
2012 unsigned long r_symndx;
2013 unsigned int r_type;
2014 struct elf_link_hash_entry *h = NULL;
2015
2016 r_symndx = ELF32_R_SYM (rel->r_info);
2017 if (r_symndx >= symtab_hdr->sh_info)
2018 {
2019 struct elf32_tic6x_link_hash_entry *eh;
2020 struct elf_dyn_relocs **pp;
2021 struct elf_dyn_relocs *p;
2022
2023 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2024 while (h->root.type == bfd_link_hash_indirect
2025 || h->root.type == bfd_link_hash_warning)
2026 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2027 eh = (struct elf32_tic6x_link_hash_entry *) h;
2028
2029 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2030 if (p->sec == sec)
2031 {
2032 /* Everything must go for SEC. */
2033 *pp = p->next;
2034 break;
2035 }
2036 }
2037
2038 r_type = ELF32_R_TYPE (rel->r_info);
2039
2040 switch (r_type)
2041 {
2042 case R_C6000_SBR_GOT_U15_W:
2043 case R_C6000_SBR_GOT_L16_W:
2044 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2045 case R_C6000_EHTYPE:
ac145307
BS		 2046 if (h != NULL)
2047 {
2048 if (h->got.refcount > 0)
2049 h->got.refcount -= 1;
2050 }
2051 else if (local_got_refcounts != NULL)
2052 {
2053 if (local_got_refcounts[r_symndx] > 0)
2054 local_got_refcounts[r_symndx] -= 1;
2055 }
2056 break;
2057
2058 default:
2059 break;
2060 }
2061 }
2062
2063 return TRUE;
2064}
2065
2066/* Adjust a symbol defined by a dynamic object and referenced by a
2067 regular object. The current definition is in some section of the
2068 dynamic object, but we're not including those sections. We have to
2069 change the definition to something the rest of the link can
2070 understand. */
2071
2072static bfd_boolean
2073elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info,
2074 struct elf_link_hash_entry *h)
2075{
2076 struct elf32_tic6x_link_hash_table *htab;
2077 bfd *dynobj;
2078 asection *s;
2079
2080 dynobj = elf_hash_table (info)->dynobj;
2081
2082 /* Make sure we know what is going on here. */
2083 BFD_ASSERT (dynobj != NULL
2084 && (h->needs_plt
2085 || h->u.weakdef != NULL
2086 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
2087
2088 /* If this is a function, put it in the procedure linkage table. We
2089 will fill in the contents of the procedure linkage table later,
2090 when we know the address of the .got section. */
2091 if (h->type == STT_FUNC
2092 || h->needs_plt)
2093 {
2094 if (h->plt.refcount <= 0
2095 || SYMBOL_CALLS_LOCAL (info, h)
2096 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2097 && h->root.type == bfd_link_hash_undefweak))
2098 {
2099 /* This case can occur if we saw a PLT32 reloc in an input
2100 file, but the symbol was never referred to by a dynamic
2101 object, or if all references were garbage collected. In
2102 such a case, we don't actually need to build a procedure
2103 linkage table, and we can just do a PC32 reloc instead. */
2104 h->plt.offset = (bfd_vma) -1;
2105 h->needs_plt = 0;
2106 }
2107
2108 return TRUE;
2109 }
2110
2111 /* If this is a weak symbol, and there is a real definition, the
2112 processor independent code will have arranged for us to see the
2113 real definition first, and we can just use the same value. */
2114 if (h->u.weakdef != NULL)
2115 {
2116 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2117 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2118 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2119 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2120 h->non_got_ref = h->u.weakdef->non_got_ref;
2121 return TRUE;
2122 }
2123
2124 /* This is a reference to a symbol defined by a dynamic object which
2125 is not a function. */
2126
2127 /* If we are creating a shared library, we must presume that the
2128 only references to the symbol are via the global offset table.
2129 For such cases we need not do anything here; the relocations will
2130 be handled correctly by relocate_section. */
0e1862bb 2131 if (bfd_link_pic (info))
ac145307
BS		 2132 return TRUE;
2133
2134 /* If there are no references to this symbol that do not use the
2135 GOT, we don't need to generate a copy reloc. */
2136 if (!h->non_got_ref)
2137 return TRUE;
2138
2139 /* If -z nocopyreloc was given, we won't generate them either. */
2140 if (info->nocopyreloc)
2141 {
2142 h->non_got_ref = 0;
2143 return TRUE;
2144 }
2145
2146 htab = elf32_tic6x_hash_table (info);
2147 if (htab == NULL)
2148 return FALSE;
2149
ac145307
BS		 2150 /* We must allocate the symbol in our .dynbss section, which will
2151 become part of the .bss section of the executable. There will be
2152 an entry for this symbol in the .dynsym section. The dynamic
2153 object will contain position independent code, so all references
2154 from the dynamic object to this symbol will go through the global
2155 offset table. The dynamic linker will use the .dynsym entry to
2156 determine the address it must put in the global offset table, so
2157 both the dynamic object and the regular object will refer to the
2158 same memory location for the variable. */
2159
2160 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2161 copy the initial value out of the dynamic object and into the
2162 runtime process image. */
1d7e9d18 2163 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
ac145307
BS		 2164 {
2165 htab->srelbss->size += sizeof (Elf32_External_Rela);
2166 h->needs_copy = 1;
2167 }
2168
2169 s = htab->sdynbss;
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 }
2368
40b36596
JM		 2369 case R_C6000_PCR_S12:
2370 case R_C6000_PCR_S10:
2371 case R_C6000_PCR_S7:
ac145307
BS		 2372 if (h != NULL
2373 && h->plt.offset != (bfd_vma) -1
2374 && htab->elf.splt != NULL)
2375 {
2376 relocation = (htab->elf.splt->output_section->vma
2377 + htab->elf.splt->output_offset
2378 + h->plt.offset);
2379 }
2380
40b36596
JM		 2381 /* Generic PC-relative handling produces a value relative to
2382 the exact location of the relocation. Adjust it to be
2383 relative to the start of the fetch packet instead. */
2384 relocation += (input_section->output_section->vma
2385 + input_section->output_offset
2386 + rel->r_offset) & 0x1f;
ac145307
BS		 2387 unresolved_reloc = FALSE;
2388 break;
2389
4a732032
BS		 2390 case R_C6000_PCR_H16:
2391 case R_C6000_PCR_L16:
2392 off = (input_section->output_section->vma
2393 + input_section->output_offset
2394 + rel->r_offset);
2395 /* These must be calculated as R = S - FP(FP(PC) - A).
2396 PC, here, is the value we just computed in OFF. RELOCATION
2397 has the address of S + A. */
2398 relocation -= rel->r_addend;
2399 off2 = ((off & ~(bfd_vma)0x1f) - rel->r_addend) & (bfd_vma)~0x1f;
2400 off2 = relocation - off2;
2401 relocation = off + off2;
2402 break;
2403
ac145307
BS		 2404 case R_C6000_DSBT_INDEX:
2405 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index;
0e1862bb 2406 if (!bfd_link_pic (info) || relocation != 0)
ac145307
BS		 2407 break;
2408
2409 /* fall through */
40b36596
JM		 2410 case R_C6000_ABS32:
2411 case R_C6000_ABS16:
2412 case R_C6000_ABS8:
2413 case R_C6000_ABS_S16:
2414 case R_C6000_ABS_L16:
2415 case R_C6000_ABS_H16:
ac145307
BS		 2416 /* When generating a shared object or relocatable executable, these
2417 relocations are copied into the output file to be resolved at
2418 run time. */
0e1862bb 2419 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
ac145307
BS		 2420 && (input_section->flags & SEC_ALLOC)
2421 && (h == NULL
2422 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2423 || h->root.type != bfd_link_hash_undefweak))
2424 {
2425 Elf_Internal_Rela outrel;
2426 bfd_boolean skip, relocate;
2427 asection *sreloc;
2428
2429 unresolved_reloc = FALSE;
2430
2431 sreloc = elf_section_data (input_section)->sreloc;
2432 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
2433
2434 skip = FALSE;
2435 relocate = FALSE;
2436
2437 outrel.r_offset =
2438 _bfd_elf_section_offset (output_bfd, info, input_section,
2439 rel->r_offset);
2440 if (outrel.r_offset == (bfd_vma) -1)
2441 skip = TRUE;
2442 else if (outrel.r_offset == (bfd_vma) -2)
2443 skip = TRUE, relocate = TRUE;
2444 outrel.r_offset += (input_section->output_section->vma
2445 + input_section->output_offset);
2446
2447 if (skip)
2448 memset (&outrel, 0, sizeof outrel);
2449 else if (h != NULL
2450 && h->dynindx != -1
0e1862bb 2451 && (!bfd_link_pic (info)
a496fbc8 2452 || !SYMBOLIC_BIND (info, h)
ac145307
BS		 2453 || !h->def_regular))
2454 {
2455 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2456 outrel.r_addend = rel->r_addend;
2457 }
2458 else
2459 {
2460 long indx;
2461
2462 outrel.r_addend = relocation + rel->r_addend;
2463
2464 if (bfd_is_abs_section (sec))
2465 indx = 0;
2466 else if (sec == NULL || sec->owner == NULL)
2467 {
2468 bfd_set_error (bfd_error_bad_value);
2469 return FALSE;
2470 }
2471 else
2472 {
2473 asection *osec;
2474
2475 osec = sec->output_section;
2476 indx = elf_section_data (osec)->dynindx;
2477 outrel.r_addend -= osec->vma;
2478 BFD_ASSERT (indx != 0);
2479 }
2480
2481 outrel.r_info = ELF32_R_INFO (indx, r_type);
2482 }
2483
2484 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel);
2485
2486 /* If this reloc is against an external symbol, we do not want to
2487 fiddle with the addend. Otherwise, we need to include the symbol
2488 value so that it becomes an addend for the dynamic reloc. */
2489 if (! relocate)
2490 continue;
2491 }
2492
40b36596
JM		 2493 /* Generic logic OK. */
2494 break;
2495
2496 case R_C6000_SBR_U15_B:
2497 case R_C6000_SBR_U15_H:
2498 case R_C6000_SBR_U15_W:
2499 case R_C6000_SBR_S16:
2500 case R_C6000_SBR_L16_B:
2501 case R_C6000_SBR_L16_H:
2502 case R_C6000_SBR_L16_W:
2503 case R_C6000_SBR_H16_B:
2504 case R_C6000_SBR_H16_H:
2505 case R_C6000_SBR_H16_W:
2506 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
2507 FALSE, FALSE, TRUE);
2508 if (sbh != NULL
2509 && (sbh->type == bfd_link_hash_defined
2510 || sbh->type == bfd_link_hash_defweak))
ac145307
BS		 2511 {
2512 if (h ? (h->root.type == bfd_link_hash_undefweak
2513 && (htab->elf.splt == NULL
2514 || h->plt.offset == (bfd_vma) -1))
2515 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2516 relocation = 0;
2517 else
2518 relocation -= (sbh->u.def.value
2519 + sbh->u.def.section->output_section->vma
2520 + sbh->u.def.section->output_offset);
2521 }
40b36596
JM		 2522 else
2523 {
2524 (*_bfd_error_handler) (_("%B: SB-relative relocation but "
2525 "__c6xabi_DSBT_BASE not defined"),
2526 input_bfd);
2527 ok = FALSE;
2528 continue;
2529 }
2530 break;
2531
2532 case R_C6000_SBR_GOT_U15_W:
2533 case R_C6000_SBR_GOT_L16_W:
2534 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2535 case R_C6000_EHTYPE:
ac145307
BS		 2536 /* Relocation is to the entry for this symbol in the global
2537 offset table. */
2538 if (htab->elf.sgot == NULL)
2539 abort ();
2540
2541 if (h != NULL)
2542 {
2543 bfd_boolean dyn;
2544
2545 off = h->got.offset;
2546 dyn = htab->elf.dynamic_sections_created;
0e1862bb
L		 2547 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2548 bfd_link_pic (info),
2549 h)
2550 || (bfd_link_pic (info)
ac145307
BS		 2551 && SYMBOL_REFERENCES_LOCAL (info, h))
2552 || (ELF_ST_VISIBILITY (h->other)
2553 && h->root.type == bfd_link_hash_undefweak))
2554 {
2555 /* This is actually a static link, or it is a
2556 -Bsymbolic link and the symbol is defined
2557 locally, or the symbol was forced to be local
2558 because of a version file. We must initialize
2559 this entry in the global offset table. Since the
2560 offset must always be a multiple of 4, we use the
2561 least significant bit to record whether we have
2562 initialized it already.
2563
2564 When doing a dynamic link, we create a .rel.got
2565 relocation entry to initialize the value. This
2566 is done in the finish_dynamic_symbol routine. */
2567 if ((off & 1) != 0)
2568 off &= ~1;
2569 else
2570 {
2571 bfd_put_32 (output_bfd, relocation,
2572 htab->elf.sgot->contents + off);
2573 h->got.offset |= 1;
2574
0e1862bb
L		 2575 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2576 bfd_link_pic (info),
ac145307
BS		 2577 h)
2578 && !(ELF_ST_VISIBILITY (h->other)
2579 && h->root.type == bfd_link_hash_undefweak))
2580 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec,
2581 off);
2582 }
2583 }
2584 else
2585 unresolved_reloc = FALSE;
2586 }
2587 else
2588 {
2589 if (local_got_offsets == NULL)
2590 abort ();
2591
2592 off = local_got_offsets[r_symndx];
2593
2594 /* The offset must always be a multiple of 4. We use
2595 the least significant bit to record whether we have
2596 already generated the necessary reloc. */
2597 if ((off & 1) != 0)
2598 off &= ~1;
2599 else
2600 {
2601 bfd_put_32 (output_bfd, relocation,
2602 htab->elf.sgot->contents + off);
2603
0e1862bb 2604 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
ac145307
BS		 2605 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off);
2606
2607 local_got_offsets[r_symndx] |= 1;
2608 }
2609 }
2610
2611 if (off >= (bfd_vma) -2)
2612 abort ();
2613
2614 if (htab->dsbt)
2615 relocation = (htab->elf.sgot->output_section->vma
2616 + htab->elf.sgot->output_offset + off
2617 - htab->dsbt->output_section->vma
2618 - htab->dsbt->output_offset);
2619 else
2620 relocation = (htab->elf.sgot->output_section->vma
2621 + htab->elf.sgot->output_offset + off
2622 - htab->elf.sgotplt->output_section->vma
2623 - htab->elf.sgotplt->output_offset);
2624
2625 if (rel->r_addend != 0)
2626 {
2627 /* We can't do anything for a relocation which is against
2628 a symbol *plus offset*. GOT holds relocations for
2629 symbols. Make this an error; the compiler isn't
2630 allowed to pass us these kinds of things. */
2631 if (h == NULL)
2632 (*_bfd_error_handler)
2633 (_("%B, section %A: relocation %s with non-zero addend %d"
2634 " against local symbol"),
2635 input_bfd,
2636 input_section,
2637 elf32_tic6x_howto_table[r_type].name,
2638 rel->r_addend);
2639 else
2640 (*_bfd_error_handler)
2641 (_("%B, section %A: relocation %s with non-zero addend %d"
2642 " against symbol `%s'"),
2643 input_bfd,
2644 input_section,
2645 elf32_tic6x_howto_table[r_type].name,
2646 rel->r_addend,
2647 h->root.root.string[0] != '\0' ? h->root.root.string
2648 : _("[whose name is lost]"));
2649
2650 bfd_set_error (bfd_error_bad_value);
2651 return FALSE;
2652 }
2653 break;
2654
40b36596 2655 case R_C6000_PREL31:
44e87ece
PB		 2656 if (h != NULL
2657 && h->plt.offset != (bfd_vma) -1
2658 && htab->elf.splt != NULL)
2659 {
2660 relocation = (htab->elf.splt->output_section->vma
2661 + htab->elf.splt->output_offset
2662 + h->plt.offset);
2663 }
2664 break;
40b36596
JM		 2665
2666 case R_C6000_COPY:
2667 /* Invalid in relocatable object. */
2668 default:
2669 /* Unknown relocation. */
2670 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2671 input_bfd, r_type);
2672 ok = FALSE;
2673 continue;
2674 }
2675
2676 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2677 contents, rel->r_offset,
2678 relocation, rel->r_addend);
2679
41820509 2680 done_reloc:
40b36596
JM		 2681 if (r == bfd_reloc_ok
2682 && howto->complain_on_overflow == complain_overflow_bitfield)
2683 {
2684 /* Generic overflow handling accepts cases the ABI says
2685 should be rejected for R_C6000_ABS16 and
2686 R_C6000_ABS8. */
2687 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
2688 bfd_vma sbit = 1 << (howto->bitsize - 1);
2689 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
2690 bfd_vma value_sbits = value & sbits;
2691
2692 if (value_sbits != 0
2693 && value_sbits != sbit
2694 && value_sbits != sbits)
2695 r = bfd_reloc_overflow;
2696 }
2697
2698 if (r != bfd_reloc_ok)
2699 {
2700 const char *name;
2701 const char *error_message;
2702
2703 if (h != NULL)
2704 name = h->root.root.string;
2705 else
2706 {
2707 name = bfd_elf_string_from_elf_section (input_bfd,
2708 symtab_hdr->sh_link,
2709 sym->st_name);
2710 if (name == NULL)
2711 return FALSE;
2712 if (*name == '\0')
2713 name = bfd_section_name (input_bfd, sec);
2714 }
2715
2716 switch (r)
2717 {
2718 case bfd_reloc_overflow:
2719 /* If the overflowing reloc was to an undefined symbol,
2720 we have already printed one error message and there
2721 is no point complaining again. */
1a72702b
AM		 2722 if (!h || h->root.type != bfd_link_hash_undefined)
2723 (*info->callbacks->reloc_overflow)
2724 (info, (h ? &h->root : NULL), name, howto->name,
2725 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
40b36596
JM		 2726 break;
2727
2728 case bfd_reloc_undefined:
1a72702b
AM		 2729 (*info->callbacks->undefined_symbol) (info, name, input_bfd,
2730 input_section,
2731 rel->r_offset, TRUE);
40b36596
JM		 2732 break;
2733
2734 case bfd_reloc_outofrange:
2735 error_message = _("out of range");
2736 goto common_error;
2737
2738 case bfd_reloc_notsupported:
2739 error_message = _("unsupported relocation");
2740 goto common_error;
2741
2742 case bfd_reloc_dangerous:
2743 error_message = _("dangerous relocation");
2744 goto common_error;
2745
2746 default:
2747 error_message = _("unknown error");
2748 /* Fall through. */
2749
2750 common_error:
2751 BFD_ASSERT (error_message != NULL);
1a72702b
AM		 2752 (*info->callbacks->reloc_dangerous)
2753 (info, error_message, input_bfd, input_section, rel->r_offset);
40b36596
JM		 2754 break;
2755 }
2756 }
2757 }
2758
2759 return ok;
2760}
2761
ac145307
BS		 2762\f
2763/* Look through the relocs for a section during the first phase, and
2764 calculate needed space in the global offset table, procedure linkage
2765 table, and dynamic reloc sections. */
2766
2767static bfd_boolean
2768elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info,
2769 asection *sec, const Elf_Internal_Rela *relocs)
2770{
2771 struct elf32_tic6x_link_hash_table *htab;
2772 Elf_Internal_Shdr *symtab_hdr;
2773 struct elf_link_hash_entry **sym_hashes;
2774 const Elf_Internal_Rela *rel;
2775 const Elf_Internal_Rela *rel_end;
2776 asection *sreloc;
2777
0e1862bb 2778 if (bfd_link_relocatable (info))
ac145307
BS		 2779 return TRUE;
2780
2781 htab = elf32_tic6x_hash_table (info);
2782 symtab_hdr = &elf_symtab_hdr (abfd);
2783 sym_hashes = elf_sym_hashes (abfd);
2784
2785 /* Create dynamic sections for relocatable executables so that we can
2786 copy relocations. */
0e1862bb 2787 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
ac145307
BS		 2788 && ! htab->elf.dynamic_sections_created)
2789 {
2790 if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
2791 return FALSE;
2792 }
2793
2794 sreloc = NULL;
2795
2796 rel_end = relocs + sec->reloc_count;
2797 for (rel = relocs; rel < rel_end; rel++)
2798 {
2799 unsigned int r_type;
2800 unsigned long r_symndx;
2801 struct elf_link_hash_entry *h;
2802 Elf_Internal_Sym *isym;
2803
2804 r_symndx = ELF32_R_SYM (rel->r_info);
2805 r_type = ELF32_R_TYPE (rel->r_info);
2806
2807 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
2808 {
2809 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
2810 abfd,
2811 r_symndx);
2812 return FALSE;
2813 }
2814
2815 if (r_symndx < symtab_hdr->sh_info)
2816 {
2817 /* A local symbol. */
2818 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2819 abfd, r_symndx);
2820 if (isym == NULL)
2821 return FALSE;
2822 h = NULL;
2823 }
2824 else
2825 {
2826 isym = NULL;
2827 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2828 while (h->root.type == bfd_link_hash_indirect
2829 || h->root.type == bfd_link_hash_warning)
2830 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 2831
2832 /* PR15323, ref flags aren't set for references in the same
2833 object. */
2834 h->root.non_ir_ref = 1;
ac145307
BS		 2835 }
2836
2837 switch (r_type)
2838 {
2839 case R_C6000_PCR_S21:
44e87ece 2840 case R_C6000_PREL31:
ac145307
BS		 2841 /* This symbol requires a procedure linkage table entry. We
2842 actually build the entry in adjust_dynamic_symbol,
2843 because this might be a case of linking PIC code which is
2844 never referenced by a dynamic object, in which case we
2845 don't need to generate a procedure linkage table entry
2846 after all. */
2847
2848 /* If this is a local symbol, we resolve it directly without
2849 creating a procedure linkage table entry. */
2850 if (h == NULL)
2851 continue;
2852
2853 h->needs_plt = 1;
2854 h->plt.refcount += 1;
2855 break;
2856
2857 case R_C6000_SBR_GOT_U15_W:
2858 case R_C6000_SBR_GOT_L16_W:
2859 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2860 case R_C6000_EHTYPE:
ac145307
BS		 2861 /* This symbol requires a global offset table entry. */
2862 if (h != NULL)
2863 {
2864 h->got.refcount += 1;
2865 }
2866 else
2867 {
2868 bfd_signed_vma *local_got_refcounts;
2869
2870 /* This is a global offset table entry for a local symbol. */
2871 local_got_refcounts = elf_local_got_refcounts (abfd);
2872 if (local_got_refcounts == NULL)
2873 {
2874 bfd_size_type size;
2875
2876 size = symtab_hdr->sh_info;
2877 size *= (sizeof (bfd_signed_vma)
2878 + sizeof (bfd_vma) + sizeof(char));
2879 local_got_refcounts = bfd_zalloc (abfd, size);
2880 if (local_got_refcounts == NULL)
2881 return FALSE;
2882 elf_local_got_refcounts (abfd) = local_got_refcounts;
2883 }
2884 local_got_refcounts[r_symndx] += 1;
2885 }
2886
2887 if (htab->elf.sgot == NULL)
2888 {
2889 if (htab->elf.dynobj == NULL)
2890 htab->elf.dynobj = abfd;
2891 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
2892 return FALSE;
2893 }
2894 break;
2895
2896 case R_C6000_DSBT_INDEX:
2897 /* We'd like to check for nonzero dsbt_index here, but it's
2898 set up only after check_relocs is called. Instead, we
2899 store the number of R_C6000_DSBT_INDEX relocs in the
2900 pc_count field, and potentially discard the extra space
2901 in elf32_tic6x_allocate_dynrelocs. */
0e1862bb 2902 if (!bfd_link_pic (info))
ac145307
BS		 2903 break;
2904
2905 /* fall through */
2906 case R_C6000_ABS32:
2907 case R_C6000_ABS16:
2908 case R_C6000_ABS8:
2909 case R_C6000_ABS_S16:
2910 case R_C6000_ABS_L16:
2911 case R_C6000_ABS_H16:
2912 /* If we are creating a shared library, and this is a reloc
2913 against a global symbol, or a non PC relative reloc
2914 against a local symbol, then we need to copy the reloc
2915 into the shared library. However, if we are linking with
2916 -Bsymbolic, we do not need to copy a reloc against a
2917 global symbol which is defined in an object we are
2918 including in the link (i.e., DEF_REGULAR is set). At
2919 this point we have not seen all the input files, so it is
2920 possible that DEF_REGULAR is not set now but will be set
2921 later (it is never cleared). In case of a weak definition,
2922 DEF_REGULAR may be cleared later by a strong definition in
2923 a shared library. We account for that possibility below by
2924 storing information in the relocs_copied field of the hash
2925 table entry. A similar situation occurs when creating
2926 shared libraries and symbol visibility changes render the
2927 symbol local.
2928
2929 If on the other hand, we are creating an executable, we
2930 may need to keep relocations for symbols satisfied by a
2931 dynamic library if we manage to avoid copy relocs for the
2932 symbol. */
0e1862bb 2933 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
ac145307
BS		 2934 && (sec->flags & SEC_ALLOC) != 0)
2935 {
2936 struct elf_dyn_relocs *p;
2937 struct elf_dyn_relocs **head;
2938
2939 /* We must copy these reloc types into the output file.
2940 Create a reloc section in dynobj and make room for
2941 this reloc. */
2942 if (sreloc == NULL)
2943 {
2944 if (htab->elf.dynobj == NULL)
2945 htab->elf.dynobj = abfd;
2946
2947 sreloc = _bfd_elf_make_dynamic_reloc_section
2948 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE);
2949
2950 if (sreloc == NULL)
2951 return FALSE;
2952 }
2953
2954 /* If this is a global symbol, we count the number of
2955 relocations we need for this symbol. */
2956 if (h != NULL)
2957 {
2958 head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs;
2959 }
2960 else
2961 {
2962 /* Track dynamic relocs needed for local syms too.
2963 We really need local syms available to do this
2964 easily. Oh well. */
2965 void **vpp;
2966 asection *s;
2967
2968 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2969 if (s == NULL)
2970 s = sec;
2971
2972 vpp = &elf_section_data (s)->local_dynrel;
2973 head = (struct elf_dyn_relocs **)vpp;
2974 }
2975
2976 p = *head;
2977 if (p == NULL || p->sec != sec)
2978 {
2979 bfd_size_type amt = sizeof *p;
2980 p = bfd_alloc (htab->elf.dynobj, amt);
2981 if (p == NULL)
2982 return FALSE;
2983 p->next = *head;
2984 *head = p;
2985 p->sec = sec;
2986 p->count = 0;
2123f9ad 2987 p->pc_count = 0;
ac145307
BS		 2988 }
2989
2990 p->count += 1;
2991 if (r_type == R_C6000_DSBT_INDEX)
2992 p->pc_count += 1;
2993 }
2994 break;
2995
2996 case R_C6000_SBR_U15_B:
2997 case R_C6000_SBR_U15_H:
2998 case R_C6000_SBR_U15_W:
2999 case R_C6000_SBR_S16:
3000 case R_C6000_SBR_L16_B:
3001 case R_C6000_SBR_L16_H:
3002 case R_C6000_SBR_L16_W:
3003 case R_C6000_SBR_H16_B:
3004 case R_C6000_SBR_H16_H:
3005 case R_C6000_SBR_H16_W:
0e1862bb 3006 if (h != NULL && bfd_link_executable (info))
ac145307
BS		 3007 {
3008 /* For B14-relative addresses, we might need a copy
3009 reloc. */
3010 h->non_got_ref = 1;
3011 }
3012 break;
3013
3014 default:
3015 break;
3016 }
3017 }
3018
3019 return TRUE;
3020}
3021
3022static bfd_boolean
3023elf32_tic6x_add_symbol_hook (bfd *abfd,
3024 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3025 Elf_Internal_Sym *sym,
3026 const char **namep ATTRIBUTE_UNUSED,
3027 flagword *flagsp ATTRIBUTE_UNUSED,
3028 asection **secp,
3029 bfd_vma *valp)
3030{
3031 switch (sym->st_shndx)
3032 {
3033 case SHN_TIC6X_SCOMMON:
3034 *secp = bfd_make_section_old_way (abfd, ".scommon");
3035 (*secp)->flags |= SEC_IS_COMMON;
3036 *valp = sym->st_size;
a253d456 3037 (void) bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value));
ac145307
BS		 3038 break;
3039 }
3040
3041 return TRUE;
3042}
3043
3044static void
3045elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
3046{
3047 elf_symbol_type *elfsym;
3048
3049 elfsym = (elf_symbol_type *) asym;
3050 switch (elfsym->internal_elf_sym.st_shndx)
3051 {
3052 case SHN_TIC6X_SCOMMON:
3053 if (tic6x_elf_scom_section.name == NULL)
3054 {
3055 /* Initialize the small common section. */
3056 tic6x_elf_scom_section.name = ".scommon";
3057 tic6x_elf_scom_section.flags = SEC_IS_COMMON;
3058 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section;
3059 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol;
3060 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr;
3061 tic6x_elf_scom_symbol.name = ".scommon";
3062 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM;
3063 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section;
3064 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol;
3065 }
3066 asym->section = &tic6x_elf_scom_section;
3067 asym->value = elfsym->internal_elf_sym.st_size;
3068 break;
3069 }
3070}
3071
3072static int
3073elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3074 const char *name ATTRIBUTE_UNUSED,
3075 Elf_Internal_Sym *sym,
3076 asection *input_sec,
3077 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3078{
3079 /* If we see a common symbol, which implies a relocatable link, then
3080 if a symbol was small common in an input file, mark it as small
3081 common in the output file. */
3082 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
3083 sym->st_shndx = SHN_TIC6X_SCOMMON;
3084
3085 return 1;
3086}
3087
3088static bfd_boolean
3089elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
3090 asection *sec,
3091 int *retval)
3092{
3093 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3094 {
3095 *retval = SHN_TIC6X_SCOMMON;
3096 return TRUE;
3097 }
3098
3099 return FALSE;
3100}
3101
3102/* Allocate space in .plt, .got and associated reloc sections for
3103 dynamic relocs. */
3104
3105static bfd_boolean
3106elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3107{
3108 struct bfd_link_info *info;
3109 struct elf32_tic6x_link_hash_table *htab;
3110 struct elf32_tic6x_link_hash_entry *eh;
3111 struct elf_dyn_relocs *p;
3112
3113 if (h->root.type == bfd_link_hash_indirect)
3114 return TRUE;
3115
ac145307 3116 eh = (struct elf32_tic6x_link_hash_entry *) h;
ac145307
BS		 3117 info = (struct bfd_link_info *) inf;
3118 htab = elf32_tic6x_hash_table (info);
3119
3120 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0)
3121 {
3122 /* Make sure this symbol is output as a dynamic symbol.
3123 Undefined weak syms won't yet be marked as dynamic. */
3124 if (h->dynindx == -1 && !h->forced_local)
3125 {
3126 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3127 return FALSE;
3128 }
3129
0e1862bb 3130 if (bfd_link_pic (info)
ac145307
BS		 3131 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
3132 {
3133 asection *s = htab->elf.splt;
3134
3135 /* If this is the first .plt entry, make room for the special
3136 first entry. */
3137 if (s->size == 0)
3138 s->size += PLT_ENTRY_SIZE;
3139
3140 h->plt.offset = s->size;
3141
3142 /* If this symbol is not defined in a regular file, and we are
3143 not generating a shared library, then set the symbol to this
3144 location in the .plt. This is required to make function
3145 pointers compare as equal between the normal executable and
3146 the shared library. */
0e1862bb 3147 if (! bfd_link_pic (info) && !h->def_regular)
ac145307
BS		 3148 {
3149 h->root.u.def.section = s;
3150 h->root.u.def.value = h->plt.offset;
3151 }
3152
3153 /* Make room for this entry. */
3154 s->size += PLT_ENTRY_SIZE;
3155 /* We also need to make an entry in the .got.plt section, which
3156 will be placed in the .got section by the linker script. */
3157 htab->elf.sgotplt->size += 4;
3158 /* We also need to make an entry in the .rel.plt section. */
3159 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
3160 }
3161 else
3162 {
3163 h->plt.offset = (bfd_vma) -1;
3164 h->needs_plt = 0;
3165 }
3166 }
3167 else
3168 {
3169 h->plt.offset = (bfd_vma) -1;
3170 h->needs_plt = 0;
3171 }
3172
3173 if (h->got.refcount > 0)
3174 {
3175 asection *s;
3176
3177 /* Make sure this symbol is output as a dynamic symbol.
3178 Undefined weak syms won't yet be marked as dynamic. */
3179 if (h->dynindx == -1
3180 && !h->forced_local)
3181 {
3182 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3183 return FALSE;
3184 }
3185
3186 s = htab->elf.sgot;
3187 h->got.offset = s->size;
3188 s->size += 4;
3189
3190 if (!(ELF_ST_VISIBILITY (h->other)
3191 && h->root.type == bfd_link_hash_undefweak))
3192 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3193 }
3194 else
3195 h->got.offset = (bfd_vma) -1;
3196
3197 if (eh->dyn_relocs == NULL)
3198 return TRUE;
3199
3200 /* Discard relocs on undefined weak syms with non-default
3201 visibility. */
0e1862bb 3202 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (htab->obfd))
ac145307
BS		 3203 {
3204 /* We use the pc_count field to hold the number of
3205 R_C6000_DSBT_INDEX relocs. */
3206 if (htab->params.dsbt_index != 0)
3207 {
3208 struct elf_dyn_relocs **pp;
3209
3210 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3211 {
3212 p->count -= p->pc_count;
3213 p->pc_count = 0;
3214 if (p->count == 0)
3215 *pp = p->next;
3216 else
3217 pp = &p->next;
3218 }
3219 }
3220
3221 if (eh->dyn_relocs != NULL
3222 && h->root.type == bfd_link_hash_undefweak)
3223 {
3224 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3225 eh->dyn_relocs = NULL;
3226
3227 /* Make sure undefined weak symbols are output as a dynamic
3228 symbol in PIEs. */
3229 else if (h->dynindx == -1
3230 && !h->forced_local)
3231 {
3232 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3233 return FALSE;
3234 }
3235 }
3236 }
3237
3238 /* Finally, allocate space. */
3239 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3240 {
3241 asection *sreloc;
3242
3243 sreloc = elf_section_data (p->sec)->sreloc;
3244
3245 BFD_ASSERT (sreloc != NULL);
3246 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3247 }
3248
3249 return TRUE;
3250}
3251
3252/* Find any dynamic relocs that apply to read-only sections. */
3253
3254static bfd_boolean
3255elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3256{
3257 struct elf32_tic6x_link_hash_entry *eh;
3258 struct elf_dyn_relocs *p;
3259
ac145307
BS		 3260 eh = (struct elf32_tic6x_link_hash_entry *) h;
3261 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3262 {
3263 asection *s = p->sec->output_section;
3264
3265 if (s != NULL && (s->flags & SEC_READONLY) != 0)
3266 {
3267 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3268
3269 info->flags |= DF_TEXTREL;
3270
3271 /* Not an error, just cut short the traversal. */
3272 return FALSE;
3273 }
3274 }
3275 return TRUE;
3276}
3277
3278/* Set the sizes of the dynamic sections. */
3279
3280static bfd_boolean
3281elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3282{
3283 struct elf32_tic6x_link_hash_table *htab;
3284 bfd *dynobj;
3285 asection *s;
3286 bfd_boolean relocs;
3287 bfd *ibfd;
3288
3289 htab = elf32_tic6x_hash_table (info);
3290 dynobj = htab->elf.dynobj;
3291 if (dynobj == NULL)
3292 abort ();
3293
3294 if (htab->elf.dynamic_sections_created)
3295 {
3296 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 3297 if (bfd_link_executable (info) && !info->nointerp)
ac145307 3298 {
3d4d4302 3299 s = bfd_get_linker_section (dynobj, ".interp");
ac145307
BS		 3300 if (s == NULL)
3301 abort ();
3302 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3303 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3304 }
3305 }
3306
3307 /* Set up .got offsets for local syms, and space for local dynamic
3308 relocs. */
c72f2fb2 3309 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
ac145307
BS		 3310 {
3311 bfd_signed_vma *local_got;
3312 bfd_signed_vma *end_local_got;
ac145307
BS		 3313 bfd_size_type locsymcount;
3314 Elf_Internal_Shdr *symtab_hdr;
3315 asection *srel;
3316
3317 for (s = ibfd->sections; s != NULL; s = s->next)
3318 {
3319 struct elf_dyn_relocs *p;
3320
3321 for (p = ((struct elf_dyn_relocs *)
3322 elf_section_data (s)->local_dynrel);
3323 p != NULL;
3324 p = p->next)
3325 {
3326 if (!bfd_is_abs_section (p->sec)
3327 && bfd_is_abs_section (p->sec->output_section))
3328 {
3329 /* Input section has been discarded, either because
3330 it is a copy of a linkonce section or due to
3331 linker script /DISCARD/, so we'll be discarding
3332 the relocs too. */
3333 }
3334 else if (p->count != 0)
3335 {
3336 srel = elf_section_data (p->sec)->sreloc;
3337 srel->size += p->count * sizeof (Elf32_External_Rela);
3338 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3339 info->flags |= DF_TEXTREL;
3340 }
3341 }
3342 }
3343
3344 local_got = elf_local_got_refcounts (ibfd);
3345 if (!local_got)
3346 continue;
3347
3348 symtab_hdr = &elf_symtab_hdr (ibfd);
3349 locsymcount = symtab_hdr->sh_info;
3350 end_local_got = local_got + locsymcount;
3351 s = htab->elf.sgot;
3352 srel = htab->elf.srelgot;
544008aa 3353 for (; local_got < end_local_got; ++local_got)
ac145307
BS		 3354 {
3355 if (*local_got > 0)
3356 {
3357 *local_got = s->size;
3358 s->size += 4;
3359
0e1862bb 3360 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
ac145307
BS		 3361 {
3362 srel->size += sizeof (Elf32_External_Rela);
3363 }
3364 }
3365 else
3366 *local_got = (bfd_vma) -1;
3367 }
3368 }
3369
3370 /* Allocate global sym .plt and .got entries, and space for global
3371 sym dynamic relocs. */
3372 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info);
3373
3374 /* We now have determined the sizes of the various dynamic sections.
3375 Allocate memory for them. */
3376 relocs = FALSE;
3377 for (s = dynobj->sections; s != NULL; s = s->next)
3378 {
3379 bfd_boolean strip_section = TRUE;
3380
3381 if ((s->flags & SEC_LINKER_CREATED) == 0)
3382 continue;
3383
3384 if (s == htab->dsbt)
3385 s->size = 4 * htab->params.dsbt_size;
3386 else if (s == htab->elf.splt
3387 || s == htab->elf.sgot
3388 || s == htab->elf.sgotplt
3389 || s == htab->sdynbss)
3390 {
3391 /* Strip this section if we don't need it; see the
3392 comment below. */
3393 /* We'd like to strip these sections if they aren't needed, but if
3394 we've exported dynamic symbols from them we must leave them.
3395 It's too late to tell BFD to get rid of the symbols. */
3396
3397 if (htab->elf.hplt != NULL)
3398 strip_section = FALSE;
3399
3400 /* Round up the size of the PLT section to a multiple of 32. */
3401 if (s == htab->elf.splt && s->size > 0)
3402 s->size = (s->size + 31) & ~(bfd_vma)31;
3403 }
3404 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
3405 {
3406 if (s->size != 0
3407 && s != htab->elf.srelplt)
3408 relocs = TRUE;
3409
3410 /* We use the reloc_count field as a counter if we need
3411 to copy relocs into the output file. */
3412 s->reloc_count = 0;
3413 }
3414 else
3415 {
3416 /* It's not one of our sections, so don't allocate space. */
3417 continue;
3418 }
3419
3420 if (s->size == 0)
3421 {
3422 /* If we don't need this section, strip it from the
3423 output file. This is mostly to handle .rel.bss and
3424 .rel.plt. We must create both sections in
3425 create_dynamic_sections, because they must be created
3426 before the linker maps input sections to output
3427 sections. The linker does that before
3428 adjust_dynamic_symbol is called, and it is that
3429 function which decides whether anything needs to go
3430 into these sections. */
3431 if (strip_section)
3432 s->flags |= SEC_EXCLUDE;
3433 continue;
3434 }
3435
3436 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3437 continue;
3438
3439 /* Allocate memory for the section contents. We use bfd_zalloc
3440 here in case unused entries are not reclaimed before the
3441 section's contents are written out. This should not happen,
3442 but this way if it does, we get a R_C6000_NONE reloc instead
3443 of garbage. */
3444 s->contents = bfd_zalloc (dynobj, s->size);
3445 if (s->contents == NULL)
3446 return FALSE;
3447 }
3448
3449 if (htab->elf.dynamic_sections_created)
3450 {
3451 /* Add some entries to the .dynamic section. We fill in the
3452 values later, in elf32_tic6x_finish_dynamic_sections, but we
3453 must add the entries now so that we get the correct size for
3454 the .dynamic section. The DT_DEBUG entry is filled in by the
3455 dynamic linker and used by the debugger. */
3456#define add_dynamic_entry(TAG, VAL) \
3457 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3458
0e1862bb 3459 if (bfd_link_executable (info))
ac145307
BS		 3460 {
3461 if (!add_dynamic_entry (DT_DEBUG, 0))
3462 return FALSE;
3463 }
3464
3465 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0)
3466 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size)
3467 || !add_dynamic_entry (DT_C6000_DSBT_INDEX,
3468 htab->params.dsbt_index))
3469 return FALSE;
3470
3471 if (htab->elf.splt->size != 0)
3472 {
3473 if (!add_dynamic_entry (DT_PLTGOT, 0)
3474 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3475 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3476 || !add_dynamic_entry (DT_JMPREL, 0))
3477 return FALSE;
3478 }
3479
3480 if (relocs)
3481 {
3482 if (!add_dynamic_entry (DT_RELA, 0)
3483 || !add_dynamic_entry (DT_RELASZ, 0)
3484 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3485 return FALSE;
3486
3487 /* If any dynamic relocs apply to a read-only section,
3488 then we need a DT_TEXTREL entry. */
3489 if ((info->flags & DF_TEXTREL) == 0)
3490 elf_link_hash_traverse (&htab->elf,
3491 elf32_tic6x_readonly_dynrelocs, info);
3492
3493 if ((info->flags & DF_TEXTREL) != 0)
3494 {
3495 if (!add_dynamic_entry (DT_TEXTREL, 0))
3496 return FALSE;
3497 }
3498 }
3499 }
3500#undef add_dynamic_entry
3501
3502 return TRUE;
3503}
3504
3505/* This function is called after all the input files have been read,
3506 and the input sections have been assigned to output sections. */
3507
3508static bfd_boolean
3509elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
3510{
0e1862bb 3511 if (elf32_tic6x_using_dsbt (output_bfd) && !bfd_link_relocatable (info)
04c3a755
NS		 3512 && !bfd_elf_stack_segment_size (output_bfd, info,
3513 "__stacksize", DEFAULT_STACK_SIZE))
3514 return FALSE;
ac145307
BS		 3515
3516 return TRUE;
3517}
3518
3519static bfd_boolean
3520elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3521 struct bfd_link_info *info)
3522{
3523 struct elf32_tic6x_link_hash_table *htab;
3524 bfd *dynobj;
3525 asection *sdyn;
3526
3527 htab = elf32_tic6x_hash_table (info);
3528 dynobj = htab->elf.dynobj;
3d4d4302 3529 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
ac145307
BS		 3530
3531 if (elf_hash_table (info)->dynamic_sections_created)
3532 {
3533 Elf32_External_Dyn * dyncon;
3534 Elf32_External_Dyn * dynconend;
3535
3536 BFD_ASSERT (sdyn != NULL);
3537
3538 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3539 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3540
3541 for (; dyncon < dynconend; dyncon++)
3542 {
3543 Elf_Internal_Dyn dyn;
3544 asection *s;
3545
3546 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3547
3548 switch (dyn.d_tag)
3549 {
3550 default:
3551 break;
3552
3553 case DT_C6000_DSBT_BASE:
3554 s = htab->dsbt;
3555 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset);
3556 break;
3557
3558 case DT_PLTGOT:
3559 s = htab->elf.sgotplt;
3560 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3561 break;
3562
3563 case DT_JMPREL:
3564 s = htab->elf.srelplt;
3565 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3566 break;
3567
3568 case DT_PLTRELSZ:
3569 s = htab->elf.srelplt;
3570 dyn.d_un.d_val = s->size;
3571 break;
3572 }
3573 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3574 }
3575
3576 /* Fill in the first entry in the procedure linkage table. */
3577 if (htab->elf.splt && htab->elf.splt->size > 0)
3578 {
3579 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma
3580 + htab->elf.sgotplt->output_offset
3581 - htab->dsbt->output_section->vma
3582 - htab->dsbt->output_offset) / 4;
3583
3584 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3585 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e,
3586 htab->elf.splt->contents);
3587 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3588 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e,
3589 htab->elf.splt->contents + 4);
3590 /* nop 3 */
3591 bfd_put_32 (output_bfd, 0x00004000,
3592 htab->elf.splt->contents + 8);
3593 /* b .s2 b2 */
3594 bfd_put_32 (output_bfd, 0x00080362,
3595 htab->elf.splt->contents + 12);
3596 /* nop 5 */
3597 bfd_put_32 (output_bfd, 0x00008000,
3598 htab->elf.splt->contents + 16);
3599
3600 elf_section_data (htab->elf.splt->output_section)
3601 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3602 }
3603 }
3604
3605 return TRUE;
3606}
3607
3608/* Return address for Ith PLT stub in section PLT, for relocation REL
3609 or (bfd_vma) -1 if it should not be included. */
3610
3611static bfd_vma
3612elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt,
3613 const arelent *rel ATTRIBUTE_UNUSED)
3614{
3615 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3616}
3617
3618static int
3619elf32_tic6x_obj_attrs_arg_type (int tag)
59e6276b 3620{
3cbd1c06 3621 if (tag == Tag_ABI_compatibility)
59e6276b 3622 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
87779176
JM		 3623 else if (tag & 1)
3624 return ATTR_TYPE_FLAG_STR_VAL;
59e6276b 3625 else
59e6276b
JM		 3626 return ATTR_TYPE_FLAG_INT_VAL;
3627}
3628
87779176
JM		 3629static int
3630elf32_tic6x_obj_attrs_order (int num)
3631{
3632 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
3633 return Tag_ABI_conformance;
3634 if ((num - 1) < Tag_ABI_conformance)
3635 return num - 1;
3636 return num;
3637}
3638
0547accf
JM		 3639static bfd_boolean
3640elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
3641{
3642 if ((tag & 127) < 64)
3643 {
3644 _bfd_error_handler
3645 (_("%B: error: unknown mandatory EABI object attribute %d"),
3646 abfd, tag);
3647 bfd_set_error (bfd_error_bad_value);
3648 return FALSE;
3649 }
3650 else
3651 {
3652 _bfd_error_handler
3653 (_("%B: warning: unknown EABI object attribute %d"),
3654 abfd, tag);
3655 return TRUE;
3656 }
3657}
3658
75fa6dc1 3659/* Merge the Tag_ISA attribute values ARCH1 and ARCH2
59e6276b
JM		 3660 and return the merged value. At present, all merges succeed, so no
3661 return value for errors is defined. */
3662
3663int
3664elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
3665{
3666 int min_arch, max_arch;
3667
3668 min_arch = (arch1 < arch2 ? arch1 : arch2);
3669 max_arch = (arch1 > arch2 ? arch1 : arch2);
3670
3671 /* In most cases, the numerically greatest value is the correct
3672 merged value, but merging C64 and C67 results in C674X. */
75fa6dc1
JM		 3673 if ((min_arch == C6XABI_Tag_ISA_C67X
3674 || min_arch == C6XABI_Tag_ISA_C67XP)
3675 && (max_arch == C6XABI_Tag_ISA_C64X
3676 || max_arch == C6XABI_Tag_ISA_C64XP))
3677 return C6XABI_Tag_ISA_C674X;
59e6276b
JM		 3678
3679 return max_arch;
3680}
3681
87779176
JM		 3682/* Convert a Tag_ABI_array_object_alignment or
3683 Tag_ABI_array_object_align_expected tag value TAG to a
3684 corresponding alignment value; return the alignment, or -1 for an
3685 unknown tag value. */
3686
3687static int
3688elf32_tic6x_tag_to_array_alignment (int tag)
3689{
3690 switch (tag)
3691 {
3692 case 0:
3693 return 8;
3694
3695 case 1:
3696 return 4;
3697
3698 case 2:
3699 return 16;
3700
3701 default:
3702 return -1;
3703 }
3704}
3705
3706/* Convert a Tag_ABI_array_object_alignment or
3707 Tag_ABI_array_object_align_expected alignment ALIGN to a
3708 corresponding tag value; return the tag value. */
3709
3710static int
3711elf32_tic6x_array_alignment_to_tag (int align)
3712{
3713 switch (align)
3714 {
3715 case 8:
3716 return 0;
3717
3718 case 4:
3719 return 1;
3720
3721 case 16:
3722 return 2;
3723
3724 default:
3725 abort ();
3726 }
3727}
3728
59e6276b
JM		 3729/* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3730 succeeded, FALSE otherwise. */
3731
3732static bfd_boolean
3733elf32_tic6x_merge_attributes (bfd *ibfd, bfd *obfd)
3734{
87779176 3735 bfd_boolean result = TRUE;
59e6276b
JM		 3736 obj_attribute *in_attr;
3737 obj_attribute *out_attr;
87779176
JM		 3738 int i;
3739 int array_align_in, array_align_out, array_expect_in, array_expect_out;
59e6276b
JM		 3740
3741 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3742 {
3743 /* This is the first object. Copy the attributes. */
3744 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3745
3746 out_attr = elf_known_obj_attributes_proc (obfd);
3747
3748 /* Use the Tag_null value to indicate the attributes have been
3749 initialized. */
3750 out_attr[0].i = 1;
3751
3752 return TRUE;
3753 }
3754
3755 in_attr = elf_known_obj_attributes_proc (ibfd);
3756 out_attr = elf_known_obj_attributes_proc (obfd);
3757
3758 /* No specification yet for handling of unknown attributes, so just
3759 ignore them and handle known ones. */
59e6276b 3760
87779176
JM		 3761 if (out_attr[Tag_ABI_stack_align_preserved].i
3762 < in_attr[Tag_ABI_stack_align_needed].i)
3763 {
3764 _bfd_error_handler
3765 (_("error: %B requires more stack alignment than %B preserves"),
3766 ibfd, obfd);
3767 result = FALSE;
3768 }
3769 if (in_attr[Tag_ABI_stack_align_preserved].i
3770 < out_attr[Tag_ABI_stack_align_needed].i)
3771 {
3772 _bfd_error_handler
3773 (_("error: %B requires more stack alignment than %B preserves"),
3774 obfd, ibfd);
3775 result = FALSE;
3776 }
3777
3778 array_align_in = elf32_tic6x_tag_to_array_alignment
3779 (in_attr[Tag_ABI_array_object_alignment].i);
3780 if (array_align_in == -1)
3781 {
3782 _bfd_error_handler
3783 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3784 ibfd);
3785 result = FALSE;
3786 }
3787 array_align_out = elf32_tic6x_tag_to_array_alignment
3788 (out_attr[Tag_ABI_array_object_alignment].i);
3789 if (array_align_out == -1)
3790 {
3791 _bfd_error_handler
3792 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3793 obfd);
3794 result = FALSE;
3795 }
3796 array_expect_in = elf32_tic6x_tag_to_array_alignment
3797 (in_attr[Tag_ABI_array_object_align_expected].i);
3798 if (array_expect_in == -1)
3799 {
3800 _bfd_error_handler
3801 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3802 ibfd);
3803 result = FALSE;
3804 }
3805 array_expect_out = elf32_tic6x_tag_to_array_alignment
3806 (out_attr[Tag_ABI_array_object_align_expected].i);
3807 if (array_expect_out == -1)
3808 {
3809 _bfd_error_handler
3810 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3811 obfd);
3812 result = FALSE;
3813 }
3814
3815 if (array_align_out < array_expect_in)
3816 {
3817 _bfd_error_handler
3818 (_("error: %B requires more array alignment than %B preserves"),
3819 ibfd, obfd);
3820 result = FALSE;
3821 }
3822 if (array_align_in < array_expect_out)
b5593623
JM		 3823 {
3824 _bfd_error_handler
87779176 3825 (_("error: %B requires more array alignment than %B preserves"),
b5593623 3826 obfd, ibfd);
87779176 3827 result = FALSE;
b5593623 3828 }
87779176
JM		 3829
3830 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
3831 {
3832 switch (i)
3833 {
3834 case Tag_ISA:
3835 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
3836 out_attr[i].i);
3837 break;
3838
3839 case Tag_ABI_wchar_t:
3840 if (out_attr[i].i == 0)
3841 out_attr[i].i = in_attr[i].i;
3842 if (out_attr[i].i != 0
3843 && in_attr[i].i != 0
3844 && out_attr[i].i != in_attr[i].i)
3845 {
3846 _bfd_error_handler
3847 (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd);
3848 }
3849 break;
3850
3851 case Tag_ABI_stack_align_needed:
3852 if (out_attr[i].i < in_attr[i].i)
3853 out_attr[i].i = in_attr[i].i;
3854 break;
3855
3856 case Tag_ABI_stack_align_preserved:
3857 if (out_attr[i].i > in_attr[i].i)
3858 out_attr[i].i = in_attr[i].i;
3859 break;
3860
3861 case Tag_ABI_DSBT:
3862 if (out_attr[i].i != in_attr[i].i)
3863 {
3864 _bfd_error_handler
3865 (_("warning: %B and %B differ in whether code is "
3866 "compiled for DSBT"),
3867 obfd, ibfd);
3868 }
3869 break;
3870
87779176 3871 case Tag_ABI_PIC:
c6a8f6e0
BS		 3872 case Tag_ABI_PID:
3873 if (out_attr[i].i > in_attr[i].i)
3874 out_attr[i].i = in_attr[i].i;
87779176
JM		 3875 break;
3876
3877 case Tag_ABI_array_object_alignment:
3878 if (array_align_out != -1
3879 && array_align_in != -1
3880 && array_align_out > array_align_in)
3881 out_attr[i].i
3882 = elf32_tic6x_array_alignment_to_tag (array_align_in);
3883 break;
3884
3885 case Tag_ABI_array_object_align_expected:
3886 if (array_expect_out != -1
3887 && array_expect_in != -1
3888 && array_expect_out < array_expect_in)
3889 out_attr[i].i
3890 = elf32_tic6x_array_alignment_to_tag (array_expect_in);
3891 break;
3892
3893 case Tag_ABI_conformance:
3894 /* Merging for this attribute is not specified. As on ARM,
3895 treat a missing attribute as no claim to conform and only
3896 merge identical values. */
3897 if (out_attr[i].s == NULL
3898 || in_attr[i].s == NULL
3899 || strcmp (out_attr[i].s,
3900 in_attr[i].s) != 0)
3901 out_attr[i].s = NULL;
3902 break;
3903
0547accf
JM		 3904 case Tag_ABI_compatibility:
3905 /* Merged in _bfd_elf_merge_object_attributes. */
3906 break;
3907
87779176 3908 default:
0547accf
JM		 3909 result
3910 = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
87779176
JM		 3911 break;
3912 }
3913
3914 if (in_attr[i].type && !out_attr[i].type)
3915 out_attr[i].type = in_attr[i].type;
3916 }
3917
3cbd1c06
JM		 3918 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
3919 if (!_bfd_elf_merge_object_attributes (ibfd, obfd))
3920 return FALSE;
59e6276b 3921
0547accf
JM		 3922 result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
3923
87779176 3924 return result;
59e6276b
JM		 3925}
3926
3927static bfd_boolean
3928elf32_tic6x_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3929{
3930 if (!_bfd_generic_verify_endian_match (ibfd, obfd))
3931 return FALSE;
3932
b781d74f
JM		 3933 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (obfd))
3934 return TRUE;
3935
59e6276b
JM		 3936 if (!elf32_tic6x_merge_attributes (ibfd, obfd))
3937 return FALSE;
3938
3939 return TRUE;
3940}
3941
fbd9ad90
PB		 3942/* Add a new unwind edit to the list described by HEAD, TAIL. If TINDEX is zero,
3943 adds the edit to the start of the list. (The list must be built in order of
3944 ascending TINDEX: the function's callers are primarily responsible for
3945 maintaining that condition). */
3946
3947static void
3948elf32_tic6x_add_unwind_table_edit (tic6x_unwind_table_edit **head,
3949 tic6x_unwind_table_edit **tail,
3950 tic6x_unwind_edit_type type,
3951 asection *linked_section,
3952 unsigned int tindex)
3953{
3954 tic6x_unwind_table_edit *new_edit = (tic6x_unwind_table_edit *)
3955 xmalloc (sizeof (tic6x_unwind_table_edit));
68ffbac6 3956
fbd9ad90
PB		 3957 new_edit->type = type;
3958 new_edit->linked_section = linked_section;
3959 new_edit->index = tindex;
68ffbac6 3960
fbd9ad90
PB		 3961 if (tindex > 0)
3962 {
3963 new_edit->next = NULL;
3964
3965 if (*tail)
3966 (*tail)->next = new_edit;
3967
3968 (*tail) = new_edit;
3969
3970 if (!*head)
3971 (*head) = new_edit;
3972 }
3973 else
3974 {
3975 new_edit->next = *head;
3976
3977 if (!*tail)
3978 *tail = new_edit;
3979
3980 *head = new_edit;
3981 }
3982}
3983
3984static _tic6x_elf_section_data *
3985get_tic6x_elf_section_data (asection * sec)
3986{
3987 if (sec && sec->owner && is_tic6x_elf (sec->owner))
3988 return elf32_tic6x_section_data (sec);
3989 else
3990 return NULL;
3991}
3992
3993
3994/* Increase the size of EXIDX_SEC by ADJUST bytes. ADJUST must be negative. */
3995static void
3996elf32_tic6x_adjust_exidx_size (asection *exidx_sec, int adjust)
3997{
3998 asection *out_sec;
3999
4000 if (!exidx_sec->rawsize)
4001 exidx_sec->rawsize = exidx_sec->size;
4002
4003 bfd_set_section_size (exidx_sec->owner, exidx_sec, exidx_sec->size + adjust);
4004 out_sec = exidx_sec->output_section;
4005 /* Adjust size of output section. */
4006 bfd_set_section_size (out_sec->owner, out_sec, out_sec->size +adjust);
4007}
4008
4009/* Insert an EXIDX_CANTUNWIND marker at the end of a section. */
4010static void
4011elf32_tic6x_insert_cantunwind_after (asection *text_sec, asection *exidx_sec)
4012{
4013 struct _tic6x_elf_section_data *exidx_data;
4014
4015 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4016 elf32_tic6x_add_unwind_table_edit (
4017 &exidx_data->u.exidx.unwind_edit_list,
4018 &exidx_data->u.exidx.unwind_edit_tail,
4019 INSERT_EXIDX_CANTUNWIND_AT_END, text_sec, UINT_MAX);
4020
4021 elf32_tic6x_adjust_exidx_size (exidx_sec, 8);
4022}
4023
4024/* Scan .cx6abi.exidx tables, and create a list describing edits which
4025 should be made to those tables, such that:
68ffbac6 4026
fbd9ad90
PB		 4027 1. Regions without unwind data are marked with EXIDX_CANTUNWIND entries.
4028 2. Duplicate entries are merged together (EXIDX_CANTUNWIND, or unwind
4029 codes which have been inlined into the index).
4030
4031 If MERGE_EXIDX_ENTRIES is false, duplicate entries are not merged.
4032
4033 The edits are applied when the tables are written
4034 (in elf32_tic6x_write_section).
4035*/
4036
4037bfd_boolean
4038elf32_tic6x_fix_exidx_coverage (asection **text_section_order,
4039 unsigned int num_text_sections,
4040 struct bfd_link_info *info,
4041 bfd_boolean merge_exidx_entries)
4042{
4043 bfd *inp;
4044 unsigned int last_second_word = 0, i;
4045 asection *last_exidx_sec = NULL;
4046 asection *last_text_sec = NULL;
4047 int last_unwind_type = -1;
4048
4049 /* Walk over all EXIDX sections, and create backlinks from the corrsponding
4050 text sections. */
c72f2fb2 4051 for (inp = info->input_bfds; inp != NULL; inp = inp->link.next)
fbd9ad90
PB		 4052 {
4053 asection *sec;
68ffbac6 4054
fbd9ad90
PB		 4055 for (sec = inp->sections; sec != NULL; sec = sec->next)
4056 {
4057 struct bfd_elf_section_data *elf_sec = elf_section_data (sec);
4058 Elf_Internal_Shdr *hdr = &elf_sec->this_hdr;
68ffbac6 4059
fbd9ad90
PB		 4060 if (!hdr || hdr->sh_type != SHT_C6000_UNWIND)
4061 continue;
68ffbac6 4062
fbd9ad90
PB		 4063 if (elf_sec->linked_to)
4064 {
4065 Elf_Internal_Shdr *linked_hdr
4066 = &elf_section_data (elf_sec->linked_to)->this_hdr;
4067 struct _tic6x_elf_section_data *linked_sec_tic6x_data
4068 = get_tic6x_elf_section_data (linked_hdr->bfd_section);
4069
4070 if (linked_sec_tic6x_data == NULL)
4071 continue;
4072
4073 /* Link this .c6xabi.exidx section back from the
4074 text section it describes. */
4075 linked_sec_tic6x_data->u.text.tic6x_exidx_sec = sec;
4076 }
4077 }
4078 }
4079
4080 /* Walk all text sections in order of increasing VMA. Eilminate duplicate
4081 index table entries (EXIDX_CANTUNWIND and inlined unwind opcodes),
4082 and add EXIDX_CANTUNWIND entries for sections with no unwind table data. */
4083
4084 for (i = 0; i < num_text_sections; i++)
4085 {
4086 asection *sec = text_section_order[i];
4087 asection *exidx_sec;
4088 struct _tic6x_elf_section_data *tic6x_data
4089 = get_tic6x_elf_section_data (sec);
4090 struct _tic6x_elf_section_data *exidx_data;
4091 bfd_byte *contents = NULL;
4092 int deleted_exidx_bytes = 0;
4093 bfd_vma j;
4094 tic6x_unwind_table_edit *unwind_edit_head = NULL;
4095 tic6x_unwind_table_edit *unwind_edit_tail = NULL;
4096 Elf_Internal_Shdr *hdr;
4097 bfd *ibfd;
4098
4099 if (tic6x_data == NULL)
4100 continue;
4101
4102 exidx_sec = tic6x_data->u.text.tic6x_exidx_sec;
4103 if (exidx_sec == NULL)
4104 {
4105 /* Section has no unwind data. */
4106 if (last_unwind_type == 0 || !last_exidx_sec)
4107 continue;
4108
4109 /* Ignore zero sized sections. */
4110 if (sec->size == 0)
4111 continue;
4112
4113 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4114 last_unwind_type = 0;
4115 continue;
4116 }
4117
4118 /* Skip /DISCARD/ sections. */
4119 if (bfd_is_abs_section (exidx_sec->output_section))
4120 continue;
4121
4122 hdr = &elf_section_data (exidx_sec)->this_hdr;
4123 if (hdr->sh_type != SHT_C6000_UNWIND)
4124 continue;
68ffbac6 4125
fbd9ad90
PB		 4126 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4127 if (exidx_data == NULL)
4128 continue;
68ffbac6 4129
fbd9ad90 4130 ibfd = exidx_sec->owner;
68ffbac6 4131
fbd9ad90
PB		 4132 if (hdr->contents != NULL)
4133 contents = hdr->contents;
4134 else if (! bfd_malloc_and_get_section (ibfd, exidx_sec, &contents))
4135 /* An error? */
4136 continue;
4137
4138 for (j = 0; j < hdr->sh_size; j += 8)
4139 {
4140 unsigned int second_word = bfd_get_32 (ibfd, contents + j + 4);
4141 int unwind_type;
4142 int elide = 0;
4143
4144 /* An EXIDX_CANTUNWIND entry. */
4145 if (second_word == 1)
4146 {
4147 if (last_unwind_type == 0)
4148 elide = 1;
4149 unwind_type = 0;
4150 }
4151 /* Inlined unwinding data. Merge if equal to previous. */
4152 else if ((second_word & 0x80000000) != 0)
4153 {
4154 if (merge_exidx_entries
4155 && last_second_word == second_word
4156 && last_unwind_type == 1)
4157 elide = 1;
4158 unwind_type = 1;
4159 last_second_word = second_word;
4160 }
4161 /* Normal table entry. In theory we could merge these too,
4162 but duplicate entries are likely to be much less common. */
4163 else
4164 unwind_type = 2;
4165
4166 if (elide)
4167 {
4168 elf32_tic6x_add_unwind_table_edit (&unwind_edit_head,
4169 &unwind_edit_tail, DELETE_EXIDX_ENTRY, NULL, j / 8);
4170
4171 deleted_exidx_bytes += 8;
4172 }
4173
4174 last_unwind_type = unwind_type;
4175 }
4176
4177 /* Free contents if we allocated it ourselves. */
4178 if (contents != hdr->contents)
4179 free (contents);
4180
4181 /* Record edits to be applied later (in elf32_tic6x_write_section). */
4182 exidx_data->u.exidx.unwind_edit_list = unwind_edit_head;
4183 exidx_data->u.exidx.unwind_edit_tail = unwind_edit_tail;
68ffbac6 4184
fbd9ad90
PB		 4185 if (deleted_exidx_bytes > 0)
4186 elf32_tic6x_adjust_exidx_size (exidx_sec, -deleted_exidx_bytes);
4187
4188 last_exidx_sec = exidx_sec;
4189 last_text_sec = sec;
4190 }
4191
4192 /* Add terminating CANTUNWIND entry. */
4193 if (last_exidx_sec && last_unwind_type != 0)
4194 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4195
4196 return TRUE;
4197}
4198
4199/* Add ADDEND to lower 31 bits of VAL, leaving other bits unmodified. */
4200
4201static unsigned long
4202elf32_tic6x_add_low31 (unsigned long val, bfd_vma addend)
4203{
4204 return (val & ~0x7ffffffful) | ((val + addend) & 0x7ffffffful);
4205}
4206
4207/* Copy an .c6xabi.exidx table entry, adding OFFSET to (applied) PREL31
4208 relocations. OFFSET is in bytes, and will be scaled before encoding. */
4209
4210
4211static void
4212elf32_tic6x_copy_exidx_entry (bfd *output_bfd, bfd_byte *to, bfd_byte *from,
4213 bfd_vma offset)
4214{
4215 unsigned long first_word = bfd_get_32 (output_bfd, from);
4216 unsigned long second_word = bfd_get_32 (output_bfd, from + 4);
4217
4218 offset >>= 1;
4219 /* High bit of first word is supposed to be zero. */
4220 if ((first_word & 0x80000000ul) == 0)
4221 first_word = elf32_tic6x_add_low31 (first_word, offset);
68ffbac6 4222
fbd9ad90
PB		 4223 /* If the high bit of the first word is clear, and the bit pattern is not 0x1
4224 (EXIDX_CANTUNWIND), this is an offset to an .c6xabi.extab entry. */
4225 if ((second_word != 0x1) && ((second_word & 0x80000000ul) == 0))
4226 second_word = elf32_tic6x_add_low31 (second_word, offset);
68ffbac6 4227
fbd9ad90
PB		 4228 bfd_put_32 (output_bfd, first_word, to);
4229 bfd_put_32 (output_bfd, second_word, to + 4);
4230}
4231
4232/* Do the actual mangling of exception index tables. */
4233
4234static bfd_boolean
4235elf32_tic6x_write_section (bfd *output_bfd,
4236 struct bfd_link_info *link_info,
4237 asection *sec,
4238 bfd_byte *contents)
4239{
4240 _tic6x_elf_section_data *tic6x_data;
4241 struct elf32_tic6x_link_hash_table *globals
4242 = elf32_tic6x_hash_table (link_info);
4243 bfd_vma offset = sec->output_section->vma + sec->output_offset;
4244
4245 if (globals == NULL)
4246 return FALSE;
4247
4248 /* If this section has not been allocated an _tic6x_elf_section_data
4249 structure then we cannot record anything. */
4250 tic6x_data = get_tic6x_elf_section_data (sec);
4251 if (tic6x_data == NULL)
4252 return FALSE;
4253
4254 if (tic6x_data->elf.this_hdr.sh_type != SHT_C6000_UNWIND)
4255 return FALSE;
4256
4257 tic6x_unwind_table_edit *edit_node
4258 = tic6x_data->u.exidx.unwind_edit_list;
4259 /* Now, sec->size is the size of the section we will write. The original
4260 size (before we merged duplicate entries and inserted EXIDX_CANTUNWIND
4261 markers) was sec->rawsize. (This isn't the case if we perform no
4262 edits, then rawsize will be zero and we should use size). */
4263 bfd_byte *edited_contents = (bfd_byte *) bfd_malloc (sec->size);
4264 unsigned int input_size = sec->rawsize ? sec->rawsize : sec->size;
4265 unsigned int in_index, out_index;
4266 bfd_vma add_to_offsets = 0;
4267
4268 for (in_index = 0, out_index = 0; in_index * 8 < input_size || edit_node;)
4269 {
4270 if (edit_node)
4271 {
4272 unsigned int edit_index = edit_node->index;
68ffbac6 4273
fbd9ad90
PB		 4274 if (in_index < edit_index && in_index * 8 < input_size)
4275 {
4276 elf32_tic6x_copy_exidx_entry (output_bfd,
4277 edited_contents + out_index * 8,
4278 contents + in_index * 8, add_to_offsets);
4279 out_index++;
4280 in_index++;
4281 }
4282 else if (in_index == edit_index
4283 || (in_index * 8 >= input_size
4284 && edit_index == UINT_MAX))
4285 {
4286 switch (edit_node->type)
4287 {
4288 case DELETE_EXIDX_ENTRY:
4289 in_index++;
4290 add_to_offsets += 8;
4291 break;
68ffbac6 4292
fbd9ad90
PB		 4293 case INSERT_EXIDX_CANTUNWIND_AT_END:
4294 {
4295 asection *text_sec = edit_node->linked_section;
4296 bfd_vma text_offset = text_sec->output_section->vma
4297 + text_sec->output_offset
4298 + text_sec->size;
4299 bfd_vma exidx_offset = offset + out_index * 8;
4300 unsigned long prel31_offset;
4301
4302 /* Note: this is meant to be equivalent to an
4303 R_C6000_PREL31 relocation. These synthetic
4304 EXIDX_CANTUNWIND markers are not relocated by the
4305 usual BFD method. */
4306 prel31_offset = ((text_offset - exidx_offset) >> 1)
4307 & 0x7ffffffful;
4308
4309 /* First address we can't unwind. */
4310 bfd_put_32 (output_bfd, prel31_offset,
4311 &edited_contents[out_index * 8]);
4312
4313 /* Code for EXIDX_CANTUNWIND. */
4314 bfd_put_32 (output_bfd, 0x1,
4315 &edited_contents[out_index * 8 + 4]);
4316
4317 out_index++;
4318 add_to_offsets -= 8;
4319 }
4320 break;
4321 }
68ffbac6 4322
fbd9ad90
PB		 4323 edit_node = edit_node->next;
4324 }
4325 }
4326 else
4327 {
4328 /* No more edits, copy remaining entries verbatim. */
4329 elf32_tic6x_copy_exidx_entry (output_bfd,
4330 edited_contents + out_index * 8,
4331 contents + in_index * 8, add_to_offsets);
4332 out_index++;
4333 in_index++;
4334 }
4335 }
4336
4337 if (!(sec->flags & SEC_EXCLUDE) && !(sec->flags & SEC_NEVER_LOAD))
4338 bfd_set_section_contents (output_bfd, sec->output_section,
4339 edited_contents,
4340 (file_ptr) sec->output_offset, sec->size);
4341
4342 return TRUE;
4343}
4344
6d00b590 4345#define TARGET_LITTLE_SYM tic6x_elf32_le_vec
40b36596 4346#define TARGET_LITTLE_NAME "elf32-tic6x-le"
6d00b590 4347#define TARGET_BIG_SYM tic6x_elf32_be_vec
40b36596
JM		 4348#define TARGET_BIG_NAME "elf32-tic6x-be"
4349#define ELF_ARCH bfd_arch_tic6x
ae95ffa6 4350#define ELF_TARGET_ID TIC6X_ELF_DATA
40b36596 4351#define ELF_MACHINE_CODE EM_TI_C6000
ac145307 4352#define ELF_MAXPAGESIZE 0x1000
40b36596
JM		 4353#define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
4354#define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
59e6276b 4355#define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
41820509 4356#define bfd_elf32_mkobject elf32_tic6x_mkobject
ac145307 4357#define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
41820509 4358#define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
04c3a755 4359#define elf_backend_stack_align 8
40b36596
JM		 4360#define elf_backend_can_gc_sections 1
4361#define elf_backend_default_use_rela_p 1
4362#define elf_backend_may_use_rel_p 1
4363#define elf_backend_may_use_rela_p 1
59e6276b 4364#define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
0547accf 4365#define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
87779176 4366#define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
75fa6dc1 4367#define elf_backend_obj_attrs_section ".c6xabi.attributes"
59e6276b
JM		 4368#define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
4369#define elf_backend_obj_attrs_vendor "c6xabi"
ac145307
BS		 4370#define elf_backend_can_refcount 1
4371#define elf_backend_want_got_plt 1
4372#define elf_backend_want_dynbss 1
4373#define elf_backend_plt_readonly 1
40b36596 4374#define elf_backend_rela_normal 1
ac145307 4375#define elf_backend_got_header_size 8
1bce6bd8 4376#define elf_backend_fake_sections elf32_tic6x_fake_sections
ac145307 4377#define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook
9cf0e282 4378#define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections
ac145307
BS		 4379#define elf_backend_create_dynamic_sections \
4380 elf32_tic6x_create_dynamic_sections
4381#define elf_backend_adjust_dynamic_symbol \
4382 elf32_tic6x_adjust_dynamic_symbol
4383#define elf_backend_check_relocs elf32_tic6x_check_relocs
4384#define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
4385#define elf_backend_symbol_processing elf32_tic6x_symbol_processing
4386#define elf_backend_link_output_symbol_hook \
4387 elf32_tic6x_link_output_symbol_hook
4388#define elf_backend_section_from_bfd_section \
4389 elf32_tic6x_section_from_bfd_section
40b36596 4390#define elf_backend_relocate_section elf32_tic6x_relocate_section
2a616379 4391#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
ac145307
BS		 4392#define elf_backend_finish_dynamic_symbol \
4393 elf32_tic6x_finish_dynamic_symbol
4394#define elf_backend_always_size_sections \
4395 elf32_tic6x_always_size_sections
4396#define elf_backend_size_dynamic_sections \
4397 elf32_tic6x_size_dynamic_sections
4398#define elf_backend_finish_dynamic_sections \
4399 elf32_tic6x_finish_dynamic_sections
c6a8f6e0
BS		 4400#define bfd_elf32_bfd_final_link \
4401 elf32_tic6x_final_link
fbd9ad90 4402#define elf_backend_write_section elf32_tic6x_write_section
40b36596 4403#define elf_info_to_howto elf32_tic6x_info_to_howto
41820509 4404#define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
40b36596 4405
ac145307
BS		 4406#undef elf_backend_omit_section_dynsym
4407#define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
4408#define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
4409
2a616379
BS		 4410#include "elf32-target.h"
4411
4412#undef elf32_bed
4413#define elf32_bed elf32_tic6x_linux_bed
4414
4415#undef TARGET_LITTLE_SYM
6d00b590 4416#define TARGET_LITTLE_SYM tic6x_elf32_linux_le_vec
2a616379
BS		 4417#undef TARGET_LITTLE_NAME
4418#define TARGET_LITTLE_NAME "elf32-tic6x-linux-le"
4419#undef TARGET_BIG_SYM
6d00b590 4420#define TARGET_BIG_SYM tic6x_elf32_linux_be_vec
2a616379
BS		 4421#undef TARGET_BIG_NAME
4422#define TARGET_BIG_NAME "elf32-tic6x-linux-be"
4423#undef ELF_OSABI
4424#define ELF_OSABI ELFOSABI_C6000_LINUX
4425
2a616379
BS		 4426#include "elf32-target.h"
4427
4428#undef elf32_bed
4429#define elf32_bed elf32_tic6x_elf_bed
4430
4431#undef TARGET_LITTLE_SYM
6d00b590 4432#define TARGET_LITTLE_SYM tic6x_elf32_c6000_le_vec
2a616379
BS		 4433#undef TARGET_LITTLE_NAME
4434#define TARGET_LITTLE_NAME "elf32-tic6x-elf-le"
4435#undef TARGET_BIG_SYM
6d00b590 4436#define TARGET_BIG_SYM tic6x_elf32_c6000_be_vec
2a616379
BS		 4437#undef TARGET_BIG_NAME
4438#define TARGET_BIG_NAME "elf32-tic6x-elf-be"
4439#undef ELF_OSABI
4440#define ELF_OSABI ELFOSABI_C6000_ELFABI
4441
40b36596 4442#include "elf32-target.h"
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