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* linker.c (bfd_link_hash_traverse): Follow warning symbol link.
[deliverable/binutils-gdb.git] / bfd / elf32-tic6x.c
CommitLineData
40b36596 1/* 32-bit ELF support for TI C6X
ac145307 2 Copyright 2010, 2011
40b36596 3 Free Software Foundation, Inc.
c0621d88
NS		 4 Contributed by Joseph Myers <joseph@codesourcery.com>
5 Bernd Schmidt <bernds@codesourcery.com>
40b36596
JM		 6
7 This file is part of BFD, the Binary File Descriptor library.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
23
24#include "sysdep.h"
fbd9ad90 25#include <limits.h>
40b36596
JM		 26#include "bfd.h"
27#include "libbfd.h"
28#include "libiberty.h"
29#include "elf-bfd.h"
30#include "elf/tic6x.h"
41820509
JM		 31#include "elf32-tic6x.h"
32
ac145307
BS		 33#define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0"
34
35/* DSBT binaries have a default 128K stack. */
36#define DEFAULT_STACK_SIZE 0x20000
37
38/* The size in bytes of an entry in the procedure linkage table. */
39#define PLT_ENTRY_SIZE 24
40
41/* TI C6X ELF linker hash table. */
42
43struct elf32_tic6x_link_hash_table
44{
45 struct elf_link_hash_table elf;
46
47 /* Short-cuts to get to dynamic linker sections. */
48 asection *sdynbss;
49 asection *srelbss;
50
51 /* C6X specific command line arguments. */
52 struct elf32_tic6x_params params;
53
54 /* Small local sym cache. */
55 struct sym_cache sym_cache;
56
57 /* The output BFD, for convenience. */
58 bfd *obfd;
59
60 /* The .dsbt section. */
61 asection *dsbt;
62};
63
64/* Get the TI C6X ELF linker hash table from a link_info structure. */
65
66#define elf32_tic6x_hash_table(p) \
67 ((struct elf32_tic6x_link_hash_table *) ((p)->hash))
68
69/* TI C6X ELF linker hash entry. */
70
71struct elf32_tic6x_link_hash_entry
72{
73 struct elf_link_hash_entry elf;
74
75 /* Track dynamic relocs copied for this symbol. */
76 struct elf_dyn_relocs *dyn_relocs;
77};
78
fbd9ad90
PB		 79typedef enum
80{
81 DELETE_EXIDX_ENTRY,
82 INSERT_EXIDX_CANTUNWIND_AT_END
83}
84tic6x_unwind_edit_type;
85
86/* A (sorted) list of edits to apply to an unwind table. */
87typedef struct tic6x_unwind_table_edit
88{
89 tic6x_unwind_edit_type type;
90 /* Note: we sometimes want to insert an unwind entry corresponding to a
91 section different from the one we're currently writing out, so record the
92 (text) section this edit relates to here. */
93 asection *linked_section;
94 unsigned int index;
95 struct tic6x_unwind_table_edit *next;
96}
97tic6x_unwind_table_edit;
98
99typedef struct _tic6x_elf_section_data
100{
101 /* Information about mapping symbols. */
102 struct bfd_elf_section_data elf;
103 /* Information about unwind tables. */
104 union
105 {
106 /* Unwind info attached to a text section. */
107 struct
108 {
109 asection *tic6x_exidx_sec;
110 } text;
111
112 /* Unwind info attached to an .c6xabi.exidx section. */
113 struct
114 {
115 tic6x_unwind_table_edit *unwind_edit_list;
116 tic6x_unwind_table_edit *unwind_edit_tail;
117 } exidx;
118 } u;
119}
120_tic6x_elf_section_data;
121
122#define elf32_tic6x_section_data(sec) \
123 ((_tic6x_elf_section_data *) elf_section_data (sec))
124
41820509
JM		 125struct elf32_tic6x_obj_tdata
126{
127 struct elf_obj_tdata root;
128
129 /* Whether to use RELA relocations when generating relocations.
130 This is a per-object flag to allow the assembler to generate REL
131 relocations for use in linker testcases. */
132 bfd_boolean use_rela_p;
133};
134
135#define elf32_tic6x_tdata(abfd) \
136 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
40b36596 137
ac145307
BS		 138#define is_tic6x_elf(bfd) \
139 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
140 && elf_tdata (bfd) != NULL \
141 && elf_object_id (bfd) == TIC6X_ELF_DATA)
142
143/* C6X ELF uses two common sections. One is the usual one, and the
144 other is for small objects. All the small objects are kept
145 together, and then referenced via the gp pointer, which yields
146 faster assembler code. This is what we use for the small common
147 section. This approach is copied from ecoff.c. */
148static asection tic6x_elf_scom_section;
149static asymbol tic6x_elf_scom_symbol;
150static asymbol *tic6x_elf_scom_symbol_ptr;
151
40b36596
JM		 152static reloc_howto_type elf32_tic6x_howto_table[] =
153{
154 HOWTO (R_C6000_NONE, /* type */
155 0, /* rightshift */
156 0, /* size (0 = byte, 1 = short, 2 = long) */
157 0, /* bitsize */
158 FALSE, /* pc_relative */
159 0, /* bitpos */
160 complain_overflow_dont,/* complain_on_overflow */
161 bfd_elf_generic_reloc, /* special_function */
162 "R_C6000_NONE", /* name */
41820509
JM		 163 FALSE, /* partial_inplace */
164 0, /* src_mask */
165 0, /* dst_mask */
166 FALSE), /* pcrel_offset */
167 HOWTO (R_C6000_ABS32, /* type */
168 0, /* rightshift */
169 2, /* size (0 = byte, 1 = short, 2 = long) */
170 32, /* bitsize */
171 FALSE, /* pc_relative */
172 0, /* bitpos */
173 complain_overflow_dont,/* complain_on_overflow */
174 bfd_elf_generic_reloc, /* special_function */
175 "R_C6000_ABS32", /* name */
176 FALSE, /* partial_inplace */
177 0, /* src_mask */
178 0xffffffff, /* dst_mask */
179 FALSE), /* pcrel_offset */
180 HOWTO (R_C6000_ABS16, /* type */
181 0, /* rightshift */
182 1, /* size (0 = byte, 1 = short, 2 = long) */
183 16, /* bitsize */
184 FALSE, /* pc_relative */
185 0, /* bitpos */
186 complain_overflow_bitfield,/* complain_on_overflow */
187 bfd_elf_generic_reloc, /* special_function */
188 "R_C6000_ABS16", /* name */
189 FALSE, /* partial_inplace */
190 0, /* src_mask */
191 0x0000ffff, /* dst_mask */
192 FALSE), /* pcrel_offset */
193 HOWTO (R_C6000_ABS8, /* type */
194 0, /* rightshift */
195 0, /* size (0 = byte, 1 = short, 2 = long) */
196 8, /* bitsize */
197 FALSE, /* pc_relative */
198 0, /* bitpos */
199 complain_overflow_bitfield,/* complain_on_overflow */
200 bfd_elf_generic_reloc, /* special_function */
201 "R_C6000_ABS8", /* name */
202 FALSE, /* partial_inplace */
203 0, /* src_mask */
204 0x000000ff, /* dst_mask */
205 FALSE), /* pcrel_offset */
206 HOWTO (R_C6000_PCR_S21, /* type */
207 2, /* rightshift */
208 2, /* size (0 = byte, 1 = short, 2 = long) */
209 21, /* bitsize */
210 TRUE, /* pc_relative */
211 7, /* bitpos */
212 complain_overflow_signed,/* complain_on_overflow */
213 bfd_elf_generic_reloc, /* special_function */
214 "R_C6000_PCR_S21", /* name */
215 FALSE, /* partial_inplace */
216 0, /* src_mask */
217 0x0fffff80, /* dst_mask */
218 TRUE), /* pcrel_offset */
219 HOWTO (R_C6000_PCR_S12, /* type */
220 2, /* rightshift */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
222 12, /* bitsize */
223 TRUE, /* pc_relative */
224 16, /* bitpos */
225 complain_overflow_signed,/* complain_on_overflow */
226 bfd_elf_generic_reloc, /* special_function */
227 "R_C6000_PCR_S12", /* name */
228 FALSE, /* partial_inplace */
229 0, /* src_mask */
230 0x0fff0000, /* dst_mask */
231 TRUE), /* pcrel_offset */
232 HOWTO (R_C6000_PCR_S10, /* type */
233 2, /* rightshift */
234 2, /* size (0 = byte, 1 = short, 2 = long) */
235 10, /* bitsize */
236 TRUE, /* pc_relative */
237 13, /* bitpos */
238 complain_overflow_signed,/* complain_on_overflow */
239 bfd_elf_generic_reloc, /* special_function */
240 "R_C6000_PCR_S10", /* name */
241 FALSE, /* partial_inplace */
242 0, /* src_mask */
243 0x007fe000, /* dst_mask */
244 TRUE), /* pcrel_offset */
245 HOWTO (R_C6000_PCR_S7, /* type */
246 2, /* rightshift */
247 2, /* size (0 = byte, 1 = short, 2 = long) */
248 7, /* bitsize */
249 TRUE, /* pc_relative */
250 16, /* bitpos */
251 complain_overflow_signed,/* complain_on_overflow */
252 bfd_elf_generic_reloc, /* special_function */
253 "R_C6000_PCR_S7", /* name */
254 FALSE, /* partial_inplace */
255 0, /* src_mask */
256 0x007f0000, /* dst_mask */
257 TRUE), /* pcrel_offset */
258 HOWTO (R_C6000_ABS_S16, /* type */
259 0, /* rightshift */
260 2, /* size (0 = byte, 1 = short, 2 = long) */
261 16, /* bitsize */
262 FALSE, /* pc_relative */
263 7, /* bitpos */
264 complain_overflow_signed,/* complain_on_overflow */
265 bfd_elf_generic_reloc, /* special_function */
266 "R_C6000_ABS_S16", /* name */
267 FALSE, /* partial_inplace */
268 0, /* src_mask */
269 0x007fff80, /* dst_mask */
270 FALSE), /* pcrel_offset */
271 HOWTO (R_C6000_ABS_L16, /* type */
272 0, /* rightshift */
273 2, /* size (0 = byte, 1 = short, 2 = long) */
274 16, /* bitsize */
275 FALSE, /* pc_relative */
276 7, /* bitpos */
277 complain_overflow_dont,/* complain_on_overflow */
278 bfd_elf_generic_reloc, /* special_function */
279 "R_C6000_ABS_L16", /* name */
280 FALSE, /* partial_inplace */
281 0, /* src_mask */
282 0x007fff80, /* dst_mask */
283 FALSE), /* pcrel_offset */
284 HOWTO (R_C6000_ABS_H16, /* type */
285 16, /* rightshift */
286 2, /* size (0 = byte, 1 = short, 2 = long) */
287 16, /* bitsize */
288 FALSE, /* pc_relative */
289 7, /* bitpos */
290 complain_overflow_dont,/* complain_on_overflow */
291 bfd_elf_generic_reloc, /* special_function */
292 "R_C6000_ABS_H16", /* name */
293 FALSE, /* partial_inplace */
294 0, /* src_mask */
295 0x007fff80, /* dst_mask */
296 FALSE), /* pcrel_offset */
297 HOWTO (R_C6000_SBR_U15_B, /* type */
298 0, /* rightshift */
299 2, /* size (0 = byte, 1 = short, 2 = long) */
300 15, /* bitsize */
301 FALSE, /* pc_relative */
302 8, /* bitpos */
303 complain_overflow_unsigned,/* complain_on_overflow */
304 bfd_elf_generic_reloc, /* special_function */
305 "R_C6000_SBR_U15_B", /* name */
306 FALSE, /* partial_inplace */
307 0, /* src_mask */
308 0x007fff00, /* dst_mask */
309 FALSE), /* pcrel_offset */
310 HOWTO (R_C6000_SBR_U15_H, /* type */
311 1, /* rightshift */
312 2, /* size (0 = byte, 1 = short, 2 = long) */
313 15, /* bitsize */
314 FALSE, /* pc_relative */
315 8, /* bitpos */
316 complain_overflow_unsigned,/* complain_on_overflow */
317 bfd_elf_generic_reloc, /* special_function */
318 "R_C6000_SBR_U15_H", /* name */
319 FALSE, /* partial_inplace */
320 0, /* src_mask */
321 0x007fff00, /* dst_mask */
322 FALSE), /* pcrel_offset */
323 HOWTO (R_C6000_SBR_U15_W, /* type */
324 2, /* rightshift */
325 2, /* size (0 = byte, 1 = short, 2 = long) */
326 15, /* bitsize */
327 FALSE, /* pc_relative */
328 8, /* bitpos */
329 complain_overflow_unsigned,/* complain_on_overflow */
330 bfd_elf_generic_reloc, /* special_function */
331 "R_C6000_SBR_U15_W", /* name */
332 FALSE, /* partial_inplace */
333 0, /* src_mask */
334 0x007fff00, /* dst_mask */
335 FALSE), /* pcrel_offset */
336 HOWTO (R_C6000_SBR_S16, /* type */
337 0, /* rightshift */
338 2, /* size (0 = byte, 1 = short, 2 = long) */
339 16, /* bitsize */
340 FALSE, /* pc_relative */
341 7, /* bitpos */
342 complain_overflow_signed,/* complain_on_overflow */
343 bfd_elf_generic_reloc, /* special_function */
344 "R_C6000_SBR_S16", /* name */
345 FALSE, /* partial_inplace */
346 0, /* src_mask */
347 0x007fff80, /* dst_mask */
348 FALSE), /* pcrel_offset */
349 HOWTO (R_C6000_SBR_L16_B, /* type */
350 0, /* rightshift */
351 2, /* size (0 = byte, 1 = short, 2 = long) */
352 16, /* bitsize */
353 FALSE, /* pc_relative */
354 7, /* bitpos */
355 complain_overflow_dont,/* complain_on_overflow */
356 bfd_elf_generic_reloc, /* special_function */
357 "R_C6000_SBR_L16_B", /* name */
358 FALSE, /* partial_inplace */
359 0, /* src_mask */
360 0x007fff80, /* dst_mask */
361 FALSE), /* pcrel_offset */
362 HOWTO (R_C6000_SBR_L16_H, /* type */
363 1, /* rightshift */
364 2, /* size (0 = byte, 1 = short, 2 = long) */
365 16, /* bitsize */
366 FALSE, /* pc_relative */
367 7, /* bitpos */
368 complain_overflow_dont,/* complain_on_overflow */
369 bfd_elf_generic_reloc, /* special_function */
370 "R_C6000_SBR_L16_H", /* name */
371 FALSE, /* partial_inplace */
372 0, /* src_mask */
373 0x007fff80, /* dst_mask */
374 FALSE), /* pcrel_offset */
375 HOWTO (R_C6000_SBR_L16_W, /* type */
376 2, /* rightshift */
377 2, /* size (0 = byte, 1 = short, 2 = long) */
378 16, /* bitsize */
379 FALSE, /* pc_relative */
380 7, /* bitpos */
381 complain_overflow_dont,/* complain_on_overflow */
382 bfd_elf_generic_reloc, /* special_function */
383 "R_C6000_SBR_L16_W", /* name */
384 FALSE, /* partial_inplace */
385 0, /* src_mask */
386 0x007fff80, /* dst_mask */
387 FALSE), /* pcrel_offset */
388 HOWTO (R_C6000_SBR_H16_B, /* type */
389 16, /* rightshift */
390 2, /* size (0 = byte, 1 = short, 2 = long) */
391 16, /* bitsize */
392 FALSE, /* pc_relative */
393 7, /* bitpos */
394 complain_overflow_dont,/* complain_on_overflow */
395 bfd_elf_generic_reloc, /* special_function */
396 "R_C6000_SBR_H16_B", /* name */
397 FALSE, /* partial_inplace */
398 0, /* src_mask */
399 0x007fff80, /* dst_mask */
400 FALSE), /* pcrel_offset */
401 HOWTO (R_C6000_SBR_H16_H, /* type */
402 17, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 16, /* bitsize */
405 FALSE, /* pc_relative */
406 7, /* bitpos */
407 complain_overflow_dont,/* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_C6000_SBR_H16_H", /* name */
410 FALSE, /* partial_inplace */
411 0, /* src_mask */
412 0x007fff80, /* dst_mask */
413 FALSE), /* pcrel_offset */
414 HOWTO (R_C6000_SBR_H16_W, /* type */
415 18, /* rightshift */
416 2, /* size (0 = byte, 1 = short, 2 = long) */
417 16, /* bitsize */
418 FALSE, /* pc_relative */
419 7, /* bitpos */
420 complain_overflow_dont,/* complain_on_overflow */
421 bfd_elf_generic_reloc, /* special_function */
422 "R_C6000_SBR_H16_W", /* name */
423 FALSE, /* partial_inplace */
424 0, /* src_mask */
425 0x007fff80, /* dst_mask */
426 FALSE), /* pcrel_offset */
427 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
428 2, /* rightshift */
429 2, /* size (0 = byte, 1 = short, 2 = long) */
430 15, /* bitsize */
431 FALSE, /* pc_relative */
432 8, /* bitpos */
433 complain_overflow_unsigned,/* complain_on_overflow */
434 bfd_elf_generic_reloc, /* special_function */
435 "R_C6000_SBR_GOT_U15_W",/* name */
436 FALSE, /* partial_inplace */
437 0, /* src_mask */
438 0x007fff00, /* dst_mask */
439 FALSE), /* pcrel_offset */
440 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
441 2, /* rightshift */
442 2, /* size (0 = byte, 1 = short, 2 = long) */
443 16, /* bitsize */
444 FALSE, /* pc_relative */
445 7, /* bitpos */
446 complain_overflow_dont,/* complain_on_overflow */
447 bfd_elf_generic_reloc, /* special_function */
448 "R_C6000_SBR_GOT_L16_W",/* name */
449 FALSE, /* partial_inplace */
450 0, /* src_mask */
451 0x007fff80, /* dst_mask */
452 FALSE), /* pcrel_offset */
453 HOWTO (R_C6000_SBR_GOT_H16_W, /* type */
454 18, /* rightshift */
455 2, /* size (0 = byte, 1 = short, 2 = long) */
456 16, /* bitsize */
457 FALSE, /* pc_relative */
458 7, /* bitpos */
459 complain_overflow_dont,/* complain_on_overflow */
460 bfd_elf_generic_reloc, /* special_function */
461 "R_C6000_SBR_GOT_H16_W",/* name */
462 FALSE, /* partial_inplace */
463 0, /* src_mask */
464 0x007fff80, /* dst_mask */
465 FALSE), /* pcrel_offset */
466 HOWTO (R_C6000_DSBT_INDEX, /* type */
467 0, /* rightshift */
468 2, /* size (0 = byte, 1 = short, 2 = long) */
469 15, /* bitsize */
470 FALSE, /* pc_relative */
471 8, /* bitpos */
472 complain_overflow_unsigned,/* complain_on_overflow */
473 bfd_elf_generic_reloc, /* special_function */
474 "R_C6000_DSBT_INDEX", /* name */
475 FALSE, /* partial_inplace */
476 0, /* src_mask */
477 0x007fff00, /* dst_mask */
478 FALSE), /* pcrel_offset */
479 HOWTO (R_C6000_PREL31, /* type */
480 1, /* rightshift */
481 2, /* size (0 = byte, 1 = short, 2 = long) */
482 31, /* bitsize */
44e87ece 483 TRUE, /* pc_relative */
41820509
JM		 484 0, /* bitpos */
485 complain_overflow_dont,/* complain_on_overflow */
486 bfd_elf_generic_reloc, /* special_function */
487 "R_C6000_PREL31", /* name */
488 FALSE, /* partial_inplace */
489 0, /* src_mask */
490 0x7fffffff, /* dst_mask */
44e87ece 491 TRUE), /* pcrel_offset */
41820509
JM		 492 HOWTO (R_C6000_COPY, /* type */
493 0, /* rightshift */
494 2, /* size (0 = byte, 1 = short, 2 = long) */
495 32, /* bitsize */
496 FALSE, /* pc_relative */
497 0, /* bitpos */
498 complain_overflow_dont,/* complain_on_overflow */
499 bfd_elf_generic_reloc, /* special_function */
500 "R_C6000_COPY", /* name */
501 FALSE, /* partial_inplace */
502 0, /* src_mask */
503 0xffffffff, /* dst_mask */
504 FALSE), /* pcrel_offset */
ac145307
BS		 505 HOWTO (R_C6000_JUMP_SLOT, /* type */
506 0, /* rightshift */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
508 32, /* bitsize */
509 FALSE, /* pc_relative */
510 0, /* bitpos */
511 complain_overflow_dont,/* complain_on_overflow */
512 bfd_elf_generic_reloc, /* special_function */
513 "R_C6000_JUMP_SLOT", /* name */
514 FALSE, /* partial_inplace */
515 0, /* src_mask */
516 0xffffffff, /* dst_mask */
517 FALSE), /* pcrel_offset */
2fbb87f6
PB		 518 HOWTO (R_C6000_EHTYPE, /* type */
519 0, /* rightshift */
520 2, /* size (0 = byte, 1 = short, 2 = long) */
521 32, /* bitsize */
522 FALSE, /* pc_relative */
523 0, /* bitpos */
524 complain_overflow_dont,/* complain_on_overflow */
525 bfd_elf_generic_reloc, /* special_function */
526 "R_C6000_EHTYPE", /* name */
527 FALSE, /* partial_inplace */
528 0, /* src_mask */
529 0xffffffff, /* dst_mask */
530 FALSE), /* pcrel_offset */
4a732032
BS		 531 HOWTO (R_C6000_PCR_H16, /* type */
532 16, /* rightshift */
533 2, /* size (0 = byte, 1 = short, 2 = long) */
534 16, /* bitsize */
535 TRUE, /* pc_relative */
536 7, /* bitpos */
537 complain_overflow_dont,/* complain_on_overflow */
538 bfd_elf_generic_reloc, /* special_function */
539 "R_C6000_PCR_H16", /* name */
540 FALSE, /* partial_inplace */
541 0, /* src_mask */
542 0x007fff80, /* dst_mask */
543 TRUE), /* pcrel_offset */
544 HOWTO (R_C6000_PCR_L16, /* type */
545 0, /* rightshift */
546 2, /* size (0 = byte, 1 = short, 2 = long) */
547 16, /* bitsize */
548 TRUE, /* pc_relative */
549 7, /* bitpos */
550 complain_overflow_dont,/* complain_on_overflow */
551 bfd_elf_generic_reloc, /* special_function */
552 "R_C6000_PCR_L16", /* name */
553 FALSE, /* partial_inplace */
554 0, /* src_mask */
555 0x007fff80, /* dst_mask */
556 TRUE), /* pcrel_offset */
41820509
JM		 557 EMPTY_HOWTO (31),
558 EMPTY_HOWTO (32),
559 EMPTY_HOWTO (33),
560 EMPTY_HOWTO (34),
561 EMPTY_HOWTO (35),
562 EMPTY_HOWTO (36),
563 EMPTY_HOWTO (37),
564 EMPTY_HOWTO (38),
565 EMPTY_HOWTO (39),
566 EMPTY_HOWTO (40),
567 EMPTY_HOWTO (41),
568 EMPTY_HOWTO (42),
569 EMPTY_HOWTO (43),
570 EMPTY_HOWTO (44),
571 EMPTY_HOWTO (45),
572 EMPTY_HOWTO (46),
573 EMPTY_HOWTO (47),
574 EMPTY_HOWTO (48),
575 EMPTY_HOWTO (49),
576 EMPTY_HOWTO (50),
577 EMPTY_HOWTO (51),
578 EMPTY_HOWTO (52),
579 EMPTY_HOWTO (53),
580 EMPTY_HOWTO (54),
581 EMPTY_HOWTO (55),
582 EMPTY_HOWTO (56),
583 EMPTY_HOWTO (57),
584 EMPTY_HOWTO (58),
585 EMPTY_HOWTO (59),
586 EMPTY_HOWTO (60),
587 EMPTY_HOWTO (61),
588 EMPTY_HOWTO (62),
589 EMPTY_HOWTO (63),
590 EMPTY_HOWTO (64),
591 EMPTY_HOWTO (65),
592 EMPTY_HOWTO (66),
593 EMPTY_HOWTO (67),
594 EMPTY_HOWTO (68),
595 EMPTY_HOWTO (69),
596 EMPTY_HOWTO (70),
597 EMPTY_HOWTO (71),
598 EMPTY_HOWTO (72),
599 EMPTY_HOWTO (73),
600 EMPTY_HOWTO (74),
601 EMPTY_HOWTO (75),
602 EMPTY_HOWTO (76),
603 EMPTY_HOWTO (77),
604 EMPTY_HOWTO (78),
605 EMPTY_HOWTO (79),
606 EMPTY_HOWTO (80),
607 EMPTY_HOWTO (81),
608 EMPTY_HOWTO (82),
609 EMPTY_HOWTO (83),
610 EMPTY_HOWTO (84),
611 EMPTY_HOWTO (85),
612 EMPTY_HOWTO (86),
613 EMPTY_HOWTO (87),
614 EMPTY_HOWTO (88),
615 EMPTY_HOWTO (89),
616 EMPTY_HOWTO (90),
617 EMPTY_HOWTO (91),
618 EMPTY_HOWTO (92),
619 EMPTY_HOWTO (93),
620 EMPTY_HOWTO (94),
621 EMPTY_HOWTO (95),
622 EMPTY_HOWTO (96),
623 EMPTY_HOWTO (97),
624 EMPTY_HOWTO (98),
625 EMPTY_HOWTO (99),
626 EMPTY_HOWTO (100),
627 EMPTY_HOWTO (101),
628 EMPTY_HOWTO (102),
629 EMPTY_HOWTO (103),
630 EMPTY_HOWTO (104),
631 EMPTY_HOWTO (105),
632 EMPTY_HOWTO (106),
633 EMPTY_HOWTO (107),
634 EMPTY_HOWTO (108),
635 EMPTY_HOWTO (109),
636 EMPTY_HOWTO (110),
637 EMPTY_HOWTO (111),
638 EMPTY_HOWTO (112),
639 EMPTY_HOWTO (113),
640 EMPTY_HOWTO (114),
641 EMPTY_HOWTO (115),
642 EMPTY_HOWTO (116),
643 EMPTY_HOWTO (117),
644 EMPTY_HOWTO (118),
645 EMPTY_HOWTO (119),
646 EMPTY_HOWTO (120),
647 EMPTY_HOWTO (121),
648 EMPTY_HOWTO (122),
649 EMPTY_HOWTO (123),
650 EMPTY_HOWTO (124),
651 EMPTY_HOWTO (125),
652 EMPTY_HOWTO (126),
653 EMPTY_HOWTO (127),
654 EMPTY_HOWTO (128),
655 EMPTY_HOWTO (129),
656 EMPTY_HOWTO (130),
657 EMPTY_HOWTO (131),
658 EMPTY_HOWTO (132),
659 EMPTY_HOWTO (133),
660 EMPTY_HOWTO (134),
661 EMPTY_HOWTO (135),
662 EMPTY_HOWTO (136),
663 EMPTY_HOWTO (137),
664 EMPTY_HOWTO (138),
665 EMPTY_HOWTO (139),
666 EMPTY_HOWTO (140),
667 EMPTY_HOWTO (141),
668 EMPTY_HOWTO (142),
669 EMPTY_HOWTO (143),
670 EMPTY_HOWTO (144),
671 EMPTY_HOWTO (145),
672 EMPTY_HOWTO (146),
673 EMPTY_HOWTO (147),
674 EMPTY_HOWTO (148),
675 EMPTY_HOWTO (149),
676 EMPTY_HOWTO (150),
677 EMPTY_HOWTO (151),
678 EMPTY_HOWTO (152),
679 EMPTY_HOWTO (153),
680 EMPTY_HOWTO (154),
681 EMPTY_HOWTO (155),
682 EMPTY_HOWTO (156),
683 EMPTY_HOWTO (157),
684 EMPTY_HOWTO (158),
685 EMPTY_HOWTO (159),
686 EMPTY_HOWTO (160),
687 EMPTY_HOWTO (161),
688 EMPTY_HOWTO (162),
689 EMPTY_HOWTO (163),
690 EMPTY_HOWTO (164),
691 EMPTY_HOWTO (165),
692 EMPTY_HOWTO (166),
693 EMPTY_HOWTO (167),
694 EMPTY_HOWTO (168),
695 EMPTY_HOWTO (169),
696 EMPTY_HOWTO (170),
697 EMPTY_HOWTO (171),
698 EMPTY_HOWTO (172),
699 EMPTY_HOWTO (173),
700 EMPTY_HOWTO (174),
701 EMPTY_HOWTO (175),
702 EMPTY_HOWTO (176),
703 EMPTY_HOWTO (177),
704 EMPTY_HOWTO (178),
705 EMPTY_HOWTO (179),
706 EMPTY_HOWTO (180),
707 EMPTY_HOWTO (181),
708 EMPTY_HOWTO (182),
709 EMPTY_HOWTO (183),
710 EMPTY_HOWTO (184),
711 EMPTY_HOWTO (185),
712 EMPTY_HOWTO (186),
713 EMPTY_HOWTO (187),
714 EMPTY_HOWTO (188),
715 EMPTY_HOWTO (189),
716 EMPTY_HOWTO (190),
717 EMPTY_HOWTO (191),
718 EMPTY_HOWTO (192),
719 EMPTY_HOWTO (193),
720 EMPTY_HOWTO (194),
721 EMPTY_HOWTO (195),
722 EMPTY_HOWTO (196),
723 EMPTY_HOWTO (197),
724 EMPTY_HOWTO (198),
725 EMPTY_HOWTO (199),
726 EMPTY_HOWTO (200),
727 EMPTY_HOWTO (201),
728 EMPTY_HOWTO (202),
729 EMPTY_HOWTO (203),
730 EMPTY_HOWTO (204),
731 EMPTY_HOWTO (205),
732 EMPTY_HOWTO (206),
733 EMPTY_HOWTO (207),
734 EMPTY_HOWTO (208),
735 EMPTY_HOWTO (209),
736 EMPTY_HOWTO (210),
737 EMPTY_HOWTO (211),
738 EMPTY_HOWTO (212),
739 EMPTY_HOWTO (213),
740 EMPTY_HOWTO (214),
741 EMPTY_HOWTO (215),
742 EMPTY_HOWTO (216),
743 EMPTY_HOWTO (217),
744 EMPTY_HOWTO (218),
745 EMPTY_HOWTO (219),
746 EMPTY_HOWTO (220),
747 EMPTY_HOWTO (221),
748 EMPTY_HOWTO (222),
749 EMPTY_HOWTO (223),
750 EMPTY_HOWTO (224),
751 EMPTY_HOWTO (225),
752 EMPTY_HOWTO (226),
753 EMPTY_HOWTO (227),
754 EMPTY_HOWTO (228),
755 EMPTY_HOWTO (229),
756 EMPTY_HOWTO (230),
757 EMPTY_HOWTO (231),
758 EMPTY_HOWTO (232),
759 EMPTY_HOWTO (233),
760 EMPTY_HOWTO (234),
761 EMPTY_HOWTO (235),
762 EMPTY_HOWTO (236),
763 EMPTY_HOWTO (237),
764 EMPTY_HOWTO (238),
765 EMPTY_HOWTO (239),
766 EMPTY_HOWTO (240),
767 EMPTY_HOWTO (241),
768 EMPTY_HOWTO (242),
769 EMPTY_HOWTO (243),
770 EMPTY_HOWTO (244),
771 EMPTY_HOWTO (245),
772 EMPTY_HOWTO (246),
773 EMPTY_HOWTO (247),
774 EMPTY_HOWTO (248),
775 EMPTY_HOWTO (249),
776 EMPTY_HOWTO (250),
777 EMPTY_HOWTO (251),
778 EMPTY_HOWTO (252),
779 HOWTO (R_C6000_ALIGN, /* type */
780 0, /* rightshift */
781 0, /* size (0 = byte, 1 = short, 2 = long) */
782 0, /* bitsize */
783 FALSE, /* pc_relative */
784 0, /* bitpos */
785 complain_overflow_dont,/* complain_on_overflow */
786 bfd_elf_generic_reloc, /* special_function */
787 "R_C6000_ALIGN", /* name */
788 FALSE, /* partial_inplace */
789 0, /* src_mask */
790 0, /* dst_mask */
791 FALSE), /* pcrel_offset */
792 HOWTO (R_C6000_FPHEAD, /* type */
793 0, /* rightshift */
794 0, /* size (0 = byte, 1 = short, 2 = long) */
795 0, /* bitsize */
796 FALSE, /* pc_relative */
797 0, /* bitpos */
798 complain_overflow_dont,/* complain_on_overflow */
799 bfd_elf_generic_reloc, /* special_function */
800 "R_C6000_FPHEAD", /* name */
801 FALSE, /* partial_inplace */
802 0, /* src_mask */
803 0, /* dst_mask */
804 FALSE), /* pcrel_offset */
805 HOWTO (R_C6000_NOCMP, /* type */
806 0, /* rightshift */
807 0, /* size (0 = byte, 1 = short, 2 = long) */
808 0, /* bitsize */
809 FALSE, /* pc_relative */
810 0, /* bitpos */
811 complain_overflow_dont,/* complain_on_overflow */
812 bfd_elf_generic_reloc, /* special_function */
813 "R_C6000_NOCMP", /* name */
814 FALSE, /* partial_inplace */
815 0, /* src_mask */
816 0, /* dst_mask */
817 FALSE) /* pcrel_offset */
818};
819
820static reloc_howto_type elf32_tic6x_howto_table_rel[] =
821{
822 HOWTO (R_C6000_NONE, /* type */
823 0, /* rightshift */
824 0, /* size (0 = byte, 1 = short, 2 = long) */
825 0, /* bitsize */
826 FALSE, /* pc_relative */
827 0, /* bitpos */
828 complain_overflow_dont,/* complain_on_overflow */
829 bfd_elf_generic_reloc, /* special_function */
830 "R_C6000_NONE", /* name */
831 TRUE, /* partial_inplace */
40b36596
JM		 832 0, /* src_mask */
833 0, /* dst_mask */
834 FALSE), /* pcrel_offset */
835 HOWTO (R_C6000_ABS32, /* type */
836 0, /* rightshift */
837 2, /* size (0 = byte, 1 = short, 2 = long) */
838 32, /* bitsize */
839 FALSE, /* pc_relative */
840 0, /* bitpos */
841 complain_overflow_dont,/* complain_on_overflow */
842 bfd_elf_generic_reloc, /* special_function */
843 "R_C6000_ABS32", /* name */
41820509
JM		 844 TRUE, /* partial_inplace */
845 0xffffffff, /* src_mask */
40b36596
JM		 846 0xffffffff, /* dst_mask */
847 FALSE), /* pcrel_offset */
848 HOWTO (R_C6000_ABS16, /* type */
849 0, /* rightshift */
850 1, /* size (0 = byte, 1 = short, 2 = long) */
851 16, /* bitsize */
852 FALSE, /* pc_relative */
853 0, /* bitpos */
854 complain_overflow_bitfield,/* complain_on_overflow */
855 bfd_elf_generic_reloc, /* special_function */
856 "R_C6000_ABS16", /* name */
41820509
JM		 857 TRUE, /* partial_inplace */
858 0x0000ffff, /* src_mask */
40b36596
JM		 859 0x0000ffff, /* dst_mask */
860 FALSE), /* pcrel_offset */
861 HOWTO (R_C6000_ABS8, /* type */
862 0, /* rightshift */
863 0, /* size (0 = byte, 1 = short, 2 = long) */
864 8, /* bitsize */
865 FALSE, /* pc_relative */
866 0, /* bitpos */
867 complain_overflow_bitfield,/* complain_on_overflow */
868 bfd_elf_generic_reloc, /* special_function */
869 "R_C6000_ABS8", /* name */
41820509
JM		 870 TRUE, /* partial_inplace */
871 0x000000ff, /* src_mask */
40b36596
JM		 872 0x000000ff, /* dst_mask */
873 FALSE), /* pcrel_offset */
874 HOWTO (R_C6000_PCR_S21, /* type */
875 2, /* rightshift */
876 2, /* size (0 = byte, 1 = short, 2 = long) */
877 21, /* bitsize */
878 TRUE, /* pc_relative */
879 7, /* bitpos */
880 complain_overflow_signed,/* complain_on_overflow */
881 bfd_elf_generic_reloc, /* special_function */
882 "R_C6000_PCR_S21", /* name */
41820509
JM		 883 TRUE, /* partial_inplace */
884 0x0fffff80, /* src_mask */
40b36596
JM		 885 0x0fffff80, /* dst_mask */
886 TRUE), /* pcrel_offset */
887 HOWTO (R_C6000_PCR_S12, /* type */
888 2, /* rightshift */
889 2, /* size (0 = byte, 1 = short, 2 = long) */
890 12, /* bitsize */
891 TRUE, /* pc_relative */
892 16, /* bitpos */
893 complain_overflow_signed,/* complain_on_overflow */
894 bfd_elf_generic_reloc, /* special_function */
895 "R_C6000_PCR_S12", /* name */
41820509
JM		 896 TRUE, /* partial_inplace */
897 0x0fff0000, /* src_mask */
40b36596
JM		 898 0x0fff0000, /* dst_mask */
899 TRUE), /* pcrel_offset */
900 HOWTO (R_C6000_PCR_S10, /* type */
901 2, /* rightshift */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
903 10, /* bitsize */
904 TRUE, /* pc_relative */
905 13, /* bitpos */
906 complain_overflow_signed,/* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_C6000_PCR_S10", /* name */
41820509
JM		 909 TRUE, /* partial_inplace */
910 0x007fe000, /* src_mask */
40b36596
JM		 911 0x007fe000, /* dst_mask */
912 TRUE), /* pcrel_offset */
913 HOWTO (R_C6000_PCR_S7, /* type */
914 2, /* rightshift */
915 2, /* size (0 = byte, 1 = short, 2 = long) */
916 7, /* bitsize */
917 TRUE, /* pc_relative */
918 16, /* bitpos */
919 complain_overflow_signed,/* complain_on_overflow */
920 bfd_elf_generic_reloc, /* special_function */
921 "R_C6000_PCR_S7", /* name */
41820509
JM		 922 TRUE, /* partial_inplace */
923 0x007f0000, /* src_mask */
40b36596
JM		 924 0x007f0000, /* dst_mask */
925 TRUE), /* pcrel_offset */
926 HOWTO (R_C6000_ABS_S16, /* type */
927 0, /* rightshift */
928 2, /* size (0 = byte, 1 = short, 2 = long) */
929 16, /* bitsize */
930 FALSE, /* pc_relative */
931 7, /* bitpos */
932 complain_overflow_signed,/* complain_on_overflow */
933 bfd_elf_generic_reloc, /* special_function */
934 "R_C6000_ABS_S16", /* name */
41820509
JM		 935 TRUE, /* partial_inplace */
936 0x007fff80, /* src_mask */
40b36596
JM		 937 0x007fff80, /* dst_mask */
938 FALSE), /* pcrel_offset */
939 HOWTO (R_C6000_ABS_L16, /* type */
940 0, /* rightshift */
941 2, /* size (0 = byte, 1 = short, 2 = long) */
942 16, /* bitsize */
943 FALSE, /* pc_relative */
944 7, /* bitpos */
945 complain_overflow_dont,/* complain_on_overflow */
946 bfd_elf_generic_reloc, /* special_function */
947 "R_C6000_ABS_L16", /* name */
41820509
JM		 948 TRUE, /* partial_inplace */
949 0x007fff80, /* src_mask */
40b36596
JM		 950 0x007fff80, /* dst_mask */
951 FALSE), /* pcrel_offset */
41820509 952 EMPTY_HOWTO (R_C6000_ABS_H16),
40b36596
JM		 953 HOWTO (R_C6000_SBR_U15_B, /* type */
954 0, /* rightshift */
955 2, /* size (0 = byte, 1 = short, 2 = long) */
956 15, /* bitsize */
957 FALSE, /* pc_relative */
958 8, /* bitpos */
959 complain_overflow_unsigned,/* complain_on_overflow */
960 bfd_elf_generic_reloc, /* special_function */
961 "R_C6000_SBR_U15_B", /* name */
41820509
JM		 962 TRUE, /* partial_inplace */
963 0x007fff00, /* src_mask */
40b36596
JM		 964 0x007fff00, /* dst_mask */
965 FALSE), /* pcrel_offset */
966 HOWTO (R_C6000_SBR_U15_H, /* type */
967 1, /* rightshift */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
969 15, /* bitsize */
970 FALSE, /* pc_relative */
971 8, /* bitpos */
972 complain_overflow_unsigned,/* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_C6000_SBR_U15_H", /* name */
41820509
JM		 975 TRUE, /* partial_inplace */
976 0x007fff00, /* src_mask */
40b36596
JM		 977 0x007fff00, /* dst_mask */
978 FALSE), /* pcrel_offset */
979 HOWTO (R_C6000_SBR_U15_W, /* type */
980 2, /* rightshift */
981 2, /* size (0 = byte, 1 = short, 2 = long) */
982 15, /* bitsize */
983 FALSE, /* pc_relative */
984 8, /* bitpos */
985 complain_overflow_unsigned,/* complain_on_overflow */
986 bfd_elf_generic_reloc, /* special_function */
987 "R_C6000_SBR_U15_W", /* name */
41820509
JM		 988 TRUE, /* partial_inplace */
989 0x007fff00, /* src_mask */
40b36596
JM		 990 0x007fff00, /* dst_mask */
991 FALSE), /* pcrel_offset */
992 HOWTO (R_C6000_SBR_S16, /* type */
993 0, /* rightshift */
994 2, /* size (0 = byte, 1 = short, 2 = long) */
995 16, /* bitsize */
996 FALSE, /* pc_relative */
997 7, /* bitpos */
998 complain_overflow_signed,/* complain_on_overflow */
999 bfd_elf_generic_reloc, /* special_function */
1000 "R_C6000_SBR_S16", /* name */
41820509
JM		 1001 TRUE, /* partial_inplace */
1002 0x007fff80, /* src_mask */
40b36596
JM		 1003 0x007fff80, /* dst_mask */
1004 FALSE), /* pcrel_offset */
1005 HOWTO (R_C6000_SBR_L16_B, /* type */
1006 0, /* rightshift */
1007 2, /* size (0 = byte, 1 = short, 2 = long) */
1008 16, /* bitsize */
1009 FALSE, /* pc_relative */
1010 7, /* bitpos */
1011 complain_overflow_dont,/* complain_on_overflow */
1012 bfd_elf_generic_reloc, /* special_function */
1013 "R_C6000_SBR_L16_B", /* name */
41820509
JM		 1014 TRUE, /* partial_inplace */
1015 0x007fff80, /* src_mask */
40b36596
JM		 1016 0x007fff80, /* dst_mask */
1017 FALSE), /* pcrel_offset */
1018 HOWTO (R_C6000_SBR_L16_H, /* type */
1019 1, /* rightshift */
1020 2, /* size (0 = byte, 1 = short, 2 = long) */
1021 16, /* bitsize */
1022 FALSE, /* pc_relative */
1023 7, /* bitpos */
1024 complain_overflow_dont,/* complain_on_overflow */
1025 bfd_elf_generic_reloc, /* special_function */
1026 "R_C6000_SBR_L16_H", /* name */
41820509
JM		 1027 TRUE, /* partial_inplace */
1028 0x007fff80, /* src_mask */
40b36596
JM		 1029 0x007fff80, /* dst_mask */
1030 FALSE), /* pcrel_offset */
1031 HOWTO (R_C6000_SBR_L16_W, /* type */
1032 2, /* rightshift */
1033 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 16, /* bitsize */
1035 FALSE, /* pc_relative */
1036 7, /* bitpos */
1037 complain_overflow_dont,/* complain_on_overflow */
1038 bfd_elf_generic_reloc, /* special_function */
1039 "R_C6000_SBR_L16_W", /* name */
41820509
JM		 1040 TRUE, /* partial_inplace */
1041 0x007fff80, /* src_mask */
40b36596
JM		 1042 0x007fff80, /* dst_mask */
1043 FALSE), /* pcrel_offset */
41820509
JM		 1044 EMPTY_HOWTO (R_C6000_SBR_H16_B),
1045 EMPTY_HOWTO (R_C6000_SBR_H16_H),
1046 EMPTY_HOWTO (R_C6000_SBR_H16_W),
40b36596
JM		 1047 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
1048 2, /* rightshift */
1049 2, /* size (0 = byte, 1 = short, 2 = long) */
1050 15, /* bitsize */
1051 FALSE, /* pc_relative */
1052 8, /* bitpos */
1053 complain_overflow_unsigned,/* complain_on_overflow */
1054 bfd_elf_generic_reloc, /* special_function */
1055 "R_C6000_SBR_GOT_U15_W",/* name */
41820509
JM		 1056 TRUE, /* partial_inplace */
1057 0x007fff00, /* src_mask */
40b36596
JM		 1058 0x007fff00, /* dst_mask */
1059 FALSE), /* pcrel_offset */
1060 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
1061 2, /* rightshift */
1062 2, /* size (0 = byte, 1 = short, 2 = long) */
1063 16, /* bitsize */
1064 FALSE, /* pc_relative */
1065 7, /* bitpos */
1066 complain_overflow_dont,/* complain_on_overflow */
1067 bfd_elf_generic_reloc, /* special_function */
1068 "R_C6000_SBR_GOT_L16_W",/* name */
41820509
JM		 1069 TRUE, /* partial_inplace */
1070 0x007fff80, /* src_mask */
40b36596
JM		 1071 0x007fff80, /* dst_mask */
1072 FALSE), /* pcrel_offset */
41820509 1073 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W),
40b36596
JM		 1074 HOWTO (R_C6000_DSBT_INDEX, /* type */
1075 0, /* rightshift */
1076 2, /* size (0 = byte, 1 = short, 2 = long) */
1077 15, /* bitsize */
1078 FALSE, /* pc_relative */
1079 8, /* bitpos */
1080 complain_overflow_unsigned,/* complain_on_overflow */
1081 bfd_elf_generic_reloc, /* special_function */
1082 "R_C6000_DSBT_INDEX", /* name */
41820509 1083 TRUE, /* partial_inplace */
40b36596
JM		 1084 0, /* src_mask */
1085 0x007fff00, /* dst_mask */
1086 FALSE), /* pcrel_offset */
1087 HOWTO (R_C6000_PREL31, /* type */
1088 1, /* rightshift */
1089 2, /* size (0 = byte, 1 = short, 2 = long) */
1090 31, /* bitsize */
44e87ece 1091 TRUE, /* pc_relative */
40b36596
JM		 1092 0, /* bitpos */
1093 complain_overflow_dont,/* complain_on_overflow */
1094 bfd_elf_generic_reloc, /* special_function */
1095 "R_C6000_PREL31", /* name */
41820509 1096 TRUE, /* partial_inplace */
40b36596
JM		 1097 0, /* src_mask */
1098 0x7fffffff, /* dst_mask */
44e87ece 1099 TRUE), /* pcrel_offset */
40b36596
JM		 1100 HOWTO (R_C6000_COPY, /* type */
1101 0, /* rightshift */
1102 2, /* size (0 = byte, 1 = short, 2 = long) */
1103 32, /* bitsize */
1104 FALSE, /* pc_relative */
1105 0, /* bitpos */
1106 complain_overflow_dont,/* complain_on_overflow */
1107 bfd_elf_generic_reloc, /* special_function */
1108 "R_C6000_COPY", /* name */
41820509 1109 TRUE, /* partial_inplace */
40b36596
JM		 1110 0, /* src_mask */
1111 0xffffffff, /* dst_mask */
1112 FALSE), /* pcrel_offset */
ac145307
BS		 1113 HOWTO (R_C6000_JUMP_SLOT, /* type */
1114 0, /* rightshift */
1115 2, /* size (0 = byte, 1 = short, 2 = long) */
1116 32, /* bitsize */
1117 FALSE, /* pc_relative */
1118 0, /* bitpos */
1119 complain_overflow_dont,/* complain_on_overflow */
1120 bfd_elf_generic_reloc, /* special_function */
1121 "R_C6000_JUMP_SLOT", /* name */
1122 FALSE, /* partial_inplace */
1123 0, /* src_mask */
1124 0xffffffff, /* dst_mask */
1125 FALSE), /* pcrel_offset */
2fbb87f6
PB		 1126 HOWTO (R_C6000_EHTYPE, /* type */
1127 0, /* rightshift */
1128 2, /* size (0 = byte, 1 = short, 2 = long) */
1129 32, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont,/* complain_on_overflow */
1133 bfd_elf_generic_reloc, /* special_function */
1134 "R_C6000_EHTYPE", /* name */
1135 FALSE, /* partial_inplace */
1136 0, /* src_mask */
1137 0xffffffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
4a732032
BS		 1139 EMPTY_HOWTO (R_C6000_PCR_H16),
1140 EMPTY_HOWTO (R_C6000_PCR_L16),
40b36596
JM		 1141 EMPTY_HOWTO (31),
1142 EMPTY_HOWTO (32),
1143 EMPTY_HOWTO (33),
1144 EMPTY_HOWTO (34),
1145 EMPTY_HOWTO (35),
1146 EMPTY_HOWTO (36),
1147 EMPTY_HOWTO (37),
1148 EMPTY_HOWTO (38),
1149 EMPTY_HOWTO (39),
1150 EMPTY_HOWTO (40),
1151 EMPTY_HOWTO (41),
1152 EMPTY_HOWTO (42),
1153 EMPTY_HOWTO (43),
1154 EMPTY_HOWTO (44),
1155 EMPTY_HOWTO (45),
1156 EMPTY_HOWTO (46),
1157 EMPTY_HOWTO (47),
1158 EMPTY_HOWTO (48),
1159 EMPTY_HOWTO (49),
1160 EMPTY_HOWTO (50),
1161 EMPTY_HOWTO (51),
1162 EMPTY_HOWTO (52),
1163 EMPTY_HOWTO (53),
1164 EMPTY_HOWTO (54),
1165 EMPTY_HOWTO (55),
1166 EMPTY_HOWTO (56),
1167 EMPTY_HOWTO (57),
1168 EMPTY_HOWTO (58),
1169 EMPTY_HOWTO (59),
1170 EMPTY_HOWTO (60),
1171 EMPTY_HOWTO (61),
1172 EMPTY_HOWTO (62),
1173 EMPTY_HOWTO (63),
1174 EMPTY_HOWTO (64),
1175 EMPTY_HOWTO (65),
1176 EMPTY_HOWTO (66),
1177 EMPTY_HOWTO (67),
1178 EMPTY_HOWTO (68),
1179 EMPTY_HOWTO (69),
1180 EMPTY_HOWTO (70),
1181 EMPTY_HOWTO (71),
1182 EMPTY_HOWTO (72),
1183 EMPTY_HOWTO (73),
1184 EMPTY_HOWTO (74),
1185 EMPTY_HOWTO (75),
1186 EMPTY_HOWTO (76),
1187 EMPTY_HOWTO (77),
1188 EMPTY_HOWTO (78),
1189 EMPTY_HOWTO (79),
1190 EMPTY_HOWTO (80),
1191 EMPTY_HOWTO (81),
1192 EMPTY_HOWTO (82),
1193 EMPTY_HOWTO (83),
1194 EMPTY_HOWTO (84),
1195 EMPTY_HOWTO (85),
1196 EMPTY_HOWTO (86),
1197 EMPTY_HOWTO (87),
1198 EMPTY_HOWTO (88),
1199 EMPTY_HOWTO (89),
1200 EMPTY_HOWTO (90),
1201 EMPTY_HOWTO (91),
1202 EMPTY_HOWTO (92),
1203 EMPTY_HOWTO (93),
1204 EMPTY_HOWTO (94),
1205 EMPTY_HOWTO (95),
1206 EMPTY_HOWTO (96),
1207 EMPTY_HOWTO (97),
1208 EMPTY_HOWTO (98),
1209 EMPTY_HOWTO (99),
1210 EMPTY_HOWTO (100),
1211 EMPTY_HOWTO (101),
1212 EMPTY_HOWTO (102),
1213 EMPTY_HOWTO (103),
1214 EMPTY_HOWTO (104),
1215 EMPTY_HOWTO (105),
1216 EMPTY_HOWTO (106),
1217 EMPTY_HOWTO (107),
1218 EMPTY_HOWTO (108),
1219 EMPTY_HOWTO (109),
1220 EMPTY_HOWTO (110),
1221 EMPTY_HOWTO (111),
1222 EMPTY_HOWTO (112),
1223 EMPTY_HOWTO (113),
1224 EMPTY_HOWTO (114),
1225 EMPTY_HOWTO (115),
1226 EMPTY_HOWTO (116),
1227 EMPTY_HOWTO (117),
1228 EMPTY_HOWTO (118),
1229 EMPTY_HOWTO (119),
1230 EMPTY_HOWTO (120),
1231 EMPTY_HOWTO (121),
1232 EMPTY_HOWTO (122),
1233 EMPTY_HOWTO (123),
1234 EMPTY_HOWTO (124),
1235 EMPTY_HOWTO (125),
1236 EMPTY_HOWTO (126),
1237 EMPTY_HOWTO (127),
1238 EMPTY_HOWTO (128),
1239 EMPTY_HOWTO (129),
1240 EMPTY_HOWTO (130),
1241 EMPTY_HOWTO (131),
1242 EMPTY_HOWTO (132),
1243 EMPTY_HOWTO (133),
1244 EMPTY_HOWTO (134),
1245 EMPTY_HOWTO (135),
1246 EMPTY_HOWTO (136),
1247 EMPTY_HOWTO (137),
1248 EMPTY_HOWTO (138),
1249 EMPTY_HOWTO (139),
1250 EMPTY_HOWTO (140),
1251 EMPTY_HOWTO (141),
1252 EMPTY_HOWTO (142),
1253 EMPTY_HOWTO (143),
1254 EMPTY_HOWTO (144),
1255 EMPTY_HOWTO (145),
1256 EMPTY_HOWTO (146),
1257 EMPTY_HOWTO (147),
1258 EMPTY_HOWTO (148),
1259 EMPTY_HOWTO (149),
1260 EMPTY_HOWTO (150),
1261 EMPTY_HOWTO (151),
1262 EMPTY_HOWTO (152),
1263 EMPTY_HOWTO (153),
1264 EMPTY_HOWTO (154),
1265 EMPTY_HOWTO (155),
1266 EMPTY_HOWTO (156),
1267 EMPTY_HOWTO (157),
1268 EMPTY_HOWTO (158),
1269 EMPTY_HOWTO (159),
1270 EMPTY_HOWTO (160),
1271 EMPTY_HOWTO (161),
1272 EMPTY_HOWTO (162),
1273 EMPTY_HOWTO (163),
1274 EMPTY_HOWTO (164),
1275 EMPTY_HOWTO (165),
1276 EMPTY_HOWTO (166),
1277 EMPTY_HOWTO (167),
1278 EMPTY_HOWTO (168),
1279 EMPTY_HOWTO (169),
1280 EMPTY_HOWTO (170),
1281 EMPTY_HOWTO (171),
1282 EMPTY_HOWTO (172),
1283 EMPTY_HOWTO (173),
1284 EMPTY_HOWTO (174),
1285 EMPTY_HOWTO (175),
1286 EMPTY_HOWTO (176),
1287 EMPTY_HOWTO (177),
1288 EMPTY_HOWTO (178),
1289 EMPTY_HOWTO (179),
1290 EMPTY_HOWTO (180),
1291 EMPTY_HOWTO (181),
1292 EMPTY_HOWTO (182),
1293 EMPTY_HOWTO (183),
1294 EMPTY_HOWTO (184),
1295 EMPTY_HOWTO (185),
1296 EMPTY_HOWTO (186),
1297 EMPTY_HOWTO (187),
1298 EMPTY_HOWTO (188),
1299 EMPTY_HOWTO (189),
1300 EMPTY_HOWTO (190),
1301 EMPTY_HOWTO (191),
1302 EMPTY_HOWTO (192),
1303 EMPTY_HOWTO (193),
1304 EMPTY_HOWTO (194),
1305 EMPTY_HOWTO (195),
1306 EMPTY_HOWTO (196),
1307 EMPTY_HOWTO (197),
1308 EMPTY_HOWTO (198),
1309 EMPTY_HOWTO (199),
1310 EMPTY_HOWTO (200),
1311 EMPTY_HOWTO (201),
1312 EMPTY_HOWTO (202),
1313 EMPTY_HOWTO (203),
1314 EMPTY_HOWTO (204),
1315 EMPTY_HOWTO (205),
1316 EMPTY_HOWTO (206),
1317 EMPTY_HOWTO (207),
1318 EMPTY_HOWTO (208),
1319 EMPTY_HOWTO (209),
1320 EMPTY_HOWTO (210),
1321 EMPTY_HOWTO (211),
1322 EMPTY_HOWTO (212),
1323 EMPTY_HOWTO (213),
1324 EMPTY_HOWTO (214),
1325 EMPTY_HOWTO (215),
1326 EMPTY_HOWTO (216),
1327 EMPTY_HOWTO (217),
1328 EMPTY_HOWTO (218),
1329 EMPTY_HOWTO (219),
1330 EMPTY_HOWTO (220),
1331 EMPTY_HOWTO (221),
1332 EMPTY_HOWTO (222),
1333 EMPTY_HOWTO (223),
1334 EMPTY_HOWTO (224),
1335 EMPTY_HOWTO (225),
1336 EMPTY_HOWTO (226),
1337 EMPTY_HOWTO (227),
1338 EMPTY_HOWTO (228),
1339 EMPTY_HOWTO (229),
1340 EMPTY_HOWTO (230),
1341 EMPTY_HOWTO (231),
1342 EMPTY_HOWTO (232),
1343 EMPTY_HOWTO (233),
1344 EMPTY_HOWTO (234),
1345 EMPTY_HOWTO (235),
1346 EMPTY_HOWTO (236),
1347 EMPTY_HOWTO (237),
1348 EMPTY_HOWTO (238),
1349 EMPTY_HOWTO (239),
1350 EMPTY_HOWTO (240),
1351 EMPTY_HOWTO (241),
1352 EMPTY_HOWTO (242),
1353 EMPTY_HOWTO (243),
1354 EMPTY_HOWTO (244),
1355 EMPTY_HOWTO (245),
1356 EMPTY_HOWTO (246),
1357 EMPTY_HOWTO (247),
1358 EMPTY_HOWTO (248),
1359 EMPTY_HOWTO (249),
1360 EMPTY_HOWTO (250),
1361 EMPTY_HOWTO (251),
1362 EMPTY_HOWTO (252),
1363 HOWTO (R_C6000_ALIGN, /* type */
1364 0, /* rightshift */
1365 0, /* size (0 = byte, 1 = short, 2 = long) */
1366 0, /* bitsize */
1367 FALSE, /* pc_relative */
1368 0, /* bitpos */
1369 complain_overflow_dont,/* complain_on_overflow */
1370 bfd_elf_generic_reloc, /* special_function */
1371 "R_C6000_ALIGN", /* name */
41820509 1372 TRUE, /* partial_inplace */
40b36596
JM		 1373 0, /* src_mask */
1374 0, /* dst_mask */
1375 FALSE), /* pcrel_offset */
1376 HOWTO (R_C6000_FPHEAD, /* type */
1377 0, /* rightshift */
1378 0, /* size (0 = byte, 1 = short, 2 = long) */
1379 0, /* bitsize */
1380 FALSE, /* pc_relative */
1381 0, /* bitpos */
1382 complain_overflow_dont,/* complain_on_overflow */
1383 bfd_elf_generic_reloc, /* special_function */
1384 "R_C6000_FPHEAD", /* name */
41820509 1385 TRUE, /* partial_inplace */
40b36596
JM		 1386 0, /* src_mask */
1387 0, /* dst_mask */
1388 FALSE), /* pcrel_offset */
1389 HOWTO (R_C6000_NOCMP, /* type */
1390 0, /* rightshift */
1391 0, /* size (0 = byte, 1 = short, 2 = long) */
1392 0, /* bitsize */
1393 FALSE, /* pc_relative */
1394 0, /* bitpos */
1395 complain_overflow_dont,/* complain_on_overflow */
1396 bfd_elf_generic_reloc, /* special_function */
1397 "R_C6000_NOCMP", /* name */
41820509 1398 TRUE, /* partial_inplace */
40b36596
JM		 1399 0, /* src_mask */
1400 0, /* dst_mask */
1401 FALSE) /* pcrel_offset */
1402};
1403
1404/* Map BFD relocations to ELF relocations. */
1405
1406typedef struct
1407{
1408 bfd_reloc_code_real_type bfd_reloc_val;
1409 enum elf_tic6x_reloc_type elf_reloc_val;
1410} tic6x_reloc_map;
1411
1412static const tic6x_reloc_map elf32_tic6x_reloc_map[] =
1413 {
1414 { BFD_RELOC_NONE, R_C6000_NONE },
1415 { BFD_RELOC_32, R_C6000_ABS32 },
1416 { BFD_RELOC_16, R_C6000_ABS16 },
1417 { BFD_RELOC_8, R_C6000_ABS8 },
1418 { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 },
1419 { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 },
1420 { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 },
1421 { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 },
1422 { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 },
1423 { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 },
1424 { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 },
1425 { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B },
1426 { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H },
1427 { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W },
1428 { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 },
1429 { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B },
1430 { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H },
1431 { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W },
1432 { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B },
1433 { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H },
1434 { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W },
1435 { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W },
1436 { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W },
1437 { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W },
1438 { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX },
1439 { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 },
1440 { BFD_RELOC_C6000_COPY, R_C6000_COPY },
ac145307
BS		 1441 { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT },
1442 { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE },
1443 { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 },
1444 { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 },
40b36596
JM		 1445 { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN },
1446 { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD },
1447 { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP }
1448 };
1449
1450static reloc_howto_type *
41820509 1451elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
40b36596
JM		 1452{
1453 unsigned int i;
1454
1455 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++)
1456 if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code)
41820509
JM		 1457 {
1458 enum elf_tic6x_reloc_type elf_reloc_val;
1459 reloc_howto_type *howto;
1460
1461 elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val;
1462 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1463 howto = &elf32_tic6x_howto_table[elf_reloc_val];
1464 else
1465 howto = &elf32_tic6x_howto_table_rel[elf_reloc_val];
1466
1467 /* Some relocations are RELA-only; do not return them for
1468 REL. */
1469 if (howto->name == NULL)
1470 howto = NULL;
1471
1472 return howto;
1473 }
40b36596
JM		 1474
1475 return NULL;
1476}
1477
1478static reloc_howto_type *
41820509 1479elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name)
40b36596 1480{
41820509
JM		 1481 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1482 {
1483 unsigned int i;
1484
1485 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++)
1486 if (elf32_tic6x_howto_table[i].name != NULL
1487 && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0)
1488 return &elf32_tic6x_howto_table[i];
1489 }
1490 else
1491 {
1492 unsigned int i;
40b36596 1493
41820509
JM		 1494 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++)
1495 if (elf32_tic6x_howto_table_rel[i].name != NULL
1496 && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0)
1497 return &elf32_tic6x_howto_table_rel[i];
1498 }
40b36596
JM		 1499
1500 return NULL;
1501}
1502
1503static void
1504elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1505 Elf_Internal_Rela *elf_reloc)
1506{
1507 unsigned int r_type;
1508
1509 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1510 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table))
1511 bfd_reloc->howto = NULL;
1512 else
1513 bfd_reloc->howto = &elf32_tic6x_howto_table[r_type];
1514}
1515
41820509
JM		 1516static void
1517elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1518 Elf_Internal_Rela *elf_reloc)
1519{
1520 unsigned int r_type;
1521
1522 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1523 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel))
1524 bfd_reloc->howto = NULL;
1525 else
1526 bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type];
1527}
1528
1529void
1530elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p)
1531{
1532 elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p;
1533}
1534
ac145307
BS		 1535/* Create an entry in a C6X ELF linker hash table. */
1536
1537static struct bfd_hash_entry *
1538elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry,
1539 struct bfd_hash_table *table,
1540 const char *string)
1541{
1542 /* Allocate the structure if it has not already been allocated by a
1543 subclass. */
1544 if (entry == NULL)
1545 {
1546 entry = bfd_hash_allocate (table,
1547 sizeof (struct elf32_tic6x_link_hash_entry));
1548 if (entry == NULL)
1549 return entry;
1550 }
1551
1552 /* Call the allocation method of the superclass. */
1553 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1554 if (entry != NULL)
1555 {
1556 struct elf32_tic6x_link_hash_entry *eh;
1557
1558 eh = (struct elf32_tic6x_link_hash_entry *) entry;
1559 eh->dyn_relocs = NULL;
1560 }
1561
1562 return entry;
1563}
1564
1565/* Create a C6X ELF linker hash table. */
1566
1567static struct bfd_link_hash_table *
1568elf32_tic6x_link_hash_table_create (bfd *abfd)
1569{
1570 struct elf32_tic6x_link_hash_table *ret;
1571 bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table);
1572
1573 ret = bfd_malloc (amt);
1574 if (ret == NULL)
1575 return NULL;
1576
1577 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1578 elf32_tic6x_link_hash_newfunc,
1579 sizeof (struct elf32_tic6x_link_hash_entry),
1580 TIC6X_ELF_DATA))
1581 {
1582 free (ret);
1583 return NULL;
1584 }
1585
1586 ret->sym_cache.abfd = NULL;
1587 ret->obfd = abfd;
1588 ret->elf.is_relocatable_executable = 1;
1589
1590 return &ret->elf.root;
1591}
1592
c6a8f6e0
BS		 1593static bfd_boolean
1594elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info)
1595{
1596 if (info->shared)
1597 {
1598 obj_attribute *out_attr;
1599 out_attr = elf_known_obj_attributes_proc (abfd);
1600 if (out_attr[Tag_ABI_PIC].i == 0)
1601 {
1602 _bfd_error_handler (_("warning: generating a shared library "
1603 "containing non-PIC code"));
1604 }
1605 if (out_attr[Tag_ABI_PID].i == 0)
1606 {
1607 _bfd_error_handler (_("warning: generating a shared library "
1608 "containing non-PID code"));
1609 }
1610 }
1611 /* Invoke the regular ELF backend linker to do all the work. */
1612 if (!bfd_elf_final_link (abfd, info))
1613 return FALSE;
1614
1615 return TRUE;
1616}
1617
ac145307
BS		 1618/* Destroy a C6X ELF linker hash table. */
1619
1620static void
1621elf32_tic6x_link_hash_table_free (struct bfd_link_hash_table *hash)
1622{
1623 _bfd_generic_link_hash_table_free (hash);
1624}
1625
1626/* Called to pass PARAMS to the backend. We store them in the hash table
1627 associated with INFO. */
1628
1629void
1630elf32_tic6x_setup (struct bfd_link_info *info,
1631 struct elf32_tic6x_params *params)
1632{
1633 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info);
1634 htab->params = *params;
1635}
1636
1637/* Determine if we're dealing with a DSBT object. */
1638
1639static bfd_boolean
1640elf32_tic6x_using_dsbt (bfd *abfd)
1641{
1642 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC,
1643 Tag_ABI_DSBT);
1644}
1645
1646/* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
1647 sections in DYNOBJ, and set up shortcuts to them in our hash
1648 table. */
1649
1650static bfd_boolean
1651elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
1652{
1653 struct elf32_tic6x_link_hash_table *htab;
1654 flagword flags;
1655
1656 htab = elf32_tic6x_hash_table (info);
1657 if (htab == NULL)
1658 return FALSE;
1659
1660 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1661 return FALSE;
1662
1663 /* Create .dsbt */
1664 flags = (SEC_ALLOC | SEC_LOAD
1665 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1666 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt",
1667 flags);
1668 if (htab->dsbt == NULL
1669 || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2)
1670 || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5))
1671 return FALSE;
1672
1673 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
1674 if (!info->shared)
1675 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
1676
1677 if (!htab->sdynbss
1678 || (!info->shared && !htab->srelbss))
1679 abort ();
1680
1681 return TRUE;
1682}
1683
41820509
JM		 1684static bfd_boolean
1685elf32_tic6x_mkobject (bfd *abfd)
1686{
1687 bfd_boolean ret;
1688
1689 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
1690 TIC6X_ELF_DATA);
1691 if (ret)
1692 elf32_tic6x_set_use_rela_p (abfd, TRUE);
1693 return ret;
1694}
1695
ac145307
BS		 1696/* Install relocation RELA into section SRELA, incrementing its
1697 reloc_count. */
1698
1699static void
1700elf32_tic6x_install_rela (bfd *output_bfd, asection *srela,
1701 Elf_Internal_Rela *rela)
1702{
1703 bfd_byte *loc;
1704 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela);
1705 loc = srela->contents + off;
1706 BFD_ASSERT (off < srela->size);
1707 bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
1708}
1709
1710/* Create a dynamic reloc against the GOT at offset OFFSET. The contents
1711 of the GOT at this offset have been initialized with the relocation. */
1712
1713static void
1714elf32_tic6x_make_got_dynreloc (bfd *output_bfd,
1715 struct elf32_tic6x_link_hash_table *htab,
1716 asection *sym_sec, bfd_vma offset)
1717{
1718 asection *sgot = htab->elf.sgot;
1719 Elf_Internal_Rela outrel;
1720 int dynindx;
1721
1722 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset;
1723 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
1724 if (sym_sec && sym_sec->output_section
1725 && ! bfd_is_abs_section (sym_sec->output_section)
1726 && ! bfd_is_und_section (sym_sec->output_section))
1727 {
1728 dynindx = elf_section_data (sym_sec->output_section)->dynindx;
1729 outrel.r_addend -= sym_sec->output_section->vma;
1730 }
1731 else
1732 {
1733 dynindx = 0;
1734 }
1735 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32);
1736 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel);
1737}
1738
1739/* Finish up dynamic symbol handling. We set the contents of various
1740 dynamic sections here. */
1741
1742static bfd_boolean
1743elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd,
1744 struct bfd_link_info *info,
1745 struct elf_link_hash_entry *h,
1746 Elf_Internal_Sym * sym)
1747{
1748 bfd *dynobj;
1749 struct elf32_tic6x_link_hash_table *htab;
1750
1751 htab = elf32_tic6x_hash_table (info);
1752 dynobj = htab->elf.dynobj;
1753
1754 if (h->plt.offset != (bfd_vma) -1)
1755 {
1756 bfd_vma plt_index;
1757 bfd_vma got_section_offset, got_dp_offset, rela_offset;
1758 Elf_Internal_Rela rela;
1759 bfd_byte *loc;
1760 asection *plt, *gotplt, *relplt;
1761 const struct elf_backend_data *bed;
1762
1763 bed = get_elf_backend_data (output_bfd);
1764
1765 BFD_ASSERT (htab->elf.splt != NULL);
1766 plt = htab->elf.splt;
1767 gotplt = htab->elf.sgotplt;
1768 relplt = htab->elf.srelplt;
1769
1770 /* This symbol has an entry in the procedure linkage table. Set
1771 it up. */
1772
1773 if ((h->dynindx == -1
1774 && !((h->forced_local || info->executable)
1775 && h->def_regular
1776 && h->type == STT_GNU_IFUNC))
1777 || plt == NULL
1778 || gotplt == NULL
1779 || relplt == NULL)
1780 abort ();
1781
1782 /* Get the index in the procedure linkage table which
1783 corresponds to this symbol. This is the index of this symbol
1784 in all the symbols for which we are making plt entries. The
1785 first entry in the procedure linkage table is reserved.
1786
1787 Get the offset into the .got table of the entry that
1788 corresponds to this function. Each .got entry is 4 bytes.
1789 The first three are reserved.
1790
1791 For static executables, we don't reserve anything. */
1792
1793 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1794 got_section_offset = plt_index + bed->got_header_size / 4;
1795 got_dp_offset = got_section_offset + htab->params.dsbt_size;
1796 rela_offset = plt_index * sizeof (Elf32_External_Rela);
1797
1798 got_section_offset *= 4;
1799
1800 /* Fill in the entry in the procedure linkage table. */
1801
1802 /* ldw .d2t2 *+B14($GOT(f)), b2 */
1803 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e,
1804 plt->contents + h->plt.offset);
1805 /* mvk .s2 low(rela_offset), b0 */
1806 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a,
1807 plt->contents + h->plt.offset + 4);
1808 /* mvkh .s2 high(rela_offset), b0 */
1809 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a,
1810 plt->contents + h->plt.offset + 8);
1811 /* nop 2 */
1812 bfd_put_32 (output_bfd, 0x00002000,
1813 plt->contents + h->plt.offset + 12);
1814 /* b .s2 b2 */
1815 bfd_put_32 (output_bfd, 0x00080362,
1816 plt->contents + h->plt.offset + 16);
1817 /* nop 5 */
1818 bfd_put_32 (output_bfd, 0x00008000,
1819 plt->contents + h->plt.offset + 20);
1820
1821 /* Fill in the entry in the global offset table. */
1822 bfd_put_32 (output_bfd,
1823 (plt->output_section->vma + plt->output_offset),
1824 gotplt->contents + got_section_offset);
1825
1826 /* Fill in the entry in the .rel.plt section. */
1827 rela.r_offset = (gotplt->output_section->vma
1828 + gotplt->output_offset
1829 + got_section_offset);
1830 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT);
1831 rela.r_addend = 0;
1832 loc = relplt->contents + rela_offset;
1833 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1834
1835 if (!h->def_regular)
1836 {
1837 /* Mark the symbol as undefined, rather than as defined in
1838 the .plt section. */
1839 sym->st_shndx = SHN_UNDEF;
1840 sym->st_value = 0;
1841 }
1842 }
1843
1844 if (h->got.offset != (bfd_vma) -1)
1845 {
1846 asection *sgot;
1847 asection *srela;
1848
1849 /* This symbol has an entry in the global offset table.
1850 Set it up. */
1851
1852 sgot = bfd_get_section_by_name (dynobj, ".got");
1853 srela = bfd_get_section_by_name (dynobj, ".rela.got");
1854 BFD_ASSERT (sgot != NULL && srela != NULL);
1855
1856 /* If this is a -Bsymbolic link, and the symbol is defined
1857 locally, we just want to emit a RELATIVE reloc. Likewise if
1858 the symbol was forced to be local because of a version file.
1859 The entry in the global offset table will already have been
1860 initialized in the relocate_section function. */
1861 if (info->shared
1862 && (info->symbolic
1863 || h->dynindx == -1 || h->forced_local) && h->def_regular)
1864 {
1865 asection *s = h->root.u.def.section;
1866 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s,
1867 h->got.offset & ~(bfd_vma) 1);
1868 }
1869 else
1870 {
1871 Elf_Internal_Rela outrel;
1872 bfd_put_32 (output_bfd, (bfd_vma) 0,
1873 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
1874 outrel.r_offset = (sgot->output_section->vma
1875 + sgot->output_offset
1876 + (h->got.offset & ~(bfd_vma) 1));
1877 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32);
1878 outrel.r_addend = 0;
1879
1880 elf32_tic6x_install_rela (output_bfd, srela, &outrel);
1881 }
1882 }
1883
1884 if (h->needs_copy)
1885 {
1886 Elf_Internal_Rela rel;
1887
1888 /* This symbol needs a copy reloc. Set it up. */
1889
1890 if (h->dynindx == -1
1891 || (h->root.type != bfd_link_hash_defined
1892 && h->root.type != bfd_link_hash_defweak)
1893 || htab->srelbss == NULL)
1894 abort ();
1895
1896 rel.r_offset = (h->root.u.def.value
1897 + h->root.u.def.section->output_section->vma
1898 + h->root.u.def.section->output_offset);
1899 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY);
1900 rel.r_addend = 0;
1901
1902 elf32_tic6x_install_rela (output_bfd, htab->srelbss, &rel);
1903 }
1904
1905 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1906 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1907 || h == elf_hash_table (info)->hgot)
1908 sym->st_shndx = SHN_ABS;
1909
1910 return TRUE;
1911}
1912
9cf0e282
PB		 1913/* Unwinding tables are not referenced directly. This pass marks them as
1914 required if the corresponding code section is marked. */
1915
1916static bfd_boolean
1917elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info,
1918 elf_gc_mark_hook_fn gc_mark_hook)
1919{
1920 bfd *sub;
1921 Elf_Internal_Shdr **elf_shdrp;
1922 bfd_boolean again;
1923
1924 /* Marking EH data may cause additional code sections to be marked,
1925 requiring multiple passes. */
1926 again = TRUE;
1927 while (again)
1928 {
1929 again = FALSE;
1930 for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
1931 {
1932 asection *o;
1933
1934 if (! is_tic6x_elf (sub))
1935 continue;
1936
1937 elf_shdrp = elf_elfsections (sub);
1938 for (o = sub->sections; o != NULL; o = o->next)
1939 {
1940 Elf_Internal_Shdr *hdr;
1941
1942 hdr = &elf_section_data (o)->this_hdr;
1943 if (hdr->sh_type == SHT_C6000_UNWIND
1944 && hdr->sh_link
1945 && hdr->sh_link < elf_numsections (sub)
1946 && !o->gc_mark
1947 && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark)
1948 {
1949 again = TRUE;
1950 if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
1951 return FALSE;
1952 }
1953 }
1954 }
1955 }
1956
1957 return TRUE;
1958}
1959
1bce6bd8
PB		 1960/* Return TRUE if this is an unwinding table index. */
1961
1962static bfd_boolean
1963is_tic6x_elf_unwind_section_name (const char *name)
1964{
1965 return (CONST_STRNEQ (name, ELF_STRING_C6000_unwind)
1966 || CONST_STRNEQ (name, ELF_STRING_C6000_unwind_once));
1967}
1968
1969
1970/* Set the type and flags for an unwinding index table. We do this by
1971 the section name, which is a hack, but ought to work. */
1972
1973static bfd_boolean
1974elf32_tic6x_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1975 Elf_Internal_Shdr *hdr, asection *sec)
1976{
1977 const char * name;
1978
1979 name = bfd_get_section_name (abfd, sec);
1980
1981 if (is_tic6x_elf_unwind_section_name (name))
1982 {
1983 hdr->sh_type = SHT_C6000_UNWIND;
1984 hdr->sh_flags |= SHF_LINK_ORDER;
1985 }
1986
1987 return TRUE;
1988}
1989
ac145307
BS		 1990/* Update the got entry reference counts for the section being removed. */
1991
1992static bfd_boolean
1993elf32_tic6x_gc_sweep_hook (bfd *abfd,
1994 struct bfd_link_info *info,
1995 asection *sec,
1996 const Elf_Internal_Rela *relocs)
1997{
1998 struct elf32_tic6x_link_hash_table *htab;
1999 Elf_Internal_Shdr *symtab_hdr;
2000 struct elf_link_hash_entry **sym_hashes;
2001 bfd_signed_vma *local_got_refcounts;
2002 const Elf_Internal_Rela *rel, *relend;
2003
2004 if (info->relocatable)
2005 return TRUE;
2006
2007 htab = elf32_tic6x_hash_table (info);
2008 if (htab == NULL)
2009 return FALSE;
2010
2011 elf_section_data (sec)->local_dynrel = NULL;
2012
2013 symtab_hdr = &elf_symtab_hdr (abfd);
2014 sym_hashes = elf_sym_hashes (abfd);
2015 local_got_refcounts = elf_local_got_refcounts (abfd);
2016
2017 relend = relocs + sec->reloc_count;
2018 for (rel = relocs; rel < relend; rel++)
2019 {
2020 unsigned long r_symndx;
2021 unsigned int r_type;
2022 struct elf_link_hash_entry *h = NULL;
2023
2024 r_symndx = ELF32_R_SYM (rel->r_info);
2025 if (r_symndx >= symtab_hdr->sh_info)
2026 {
2027 struct elf32_tic6x_link_hash_entry *eh;
2028 struct elf_dyn_relocs **pp;
2029 struct elf_dyn_relocs *p;
2030
2031 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2032 while (h->root.type == bfd_link_hash_indirect
2033 || h->root.type == bfd_link_hash_warning)
2034 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2035 eh = (struct elf32_tic6x_link_hash_entry *) h;
2036
2037 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2038 if (p->sec == sec)
2039 {
2040 /* Everything must go for SEC. */
2041 *pp = p->next;
2042 break;
2043 }
2044 }
2045
2046 r_type = ELF32_R_TYPE (rel->r_info);
2047
2048 switch (r_type)
2049 {
2050 case R_C6000_SBR_GOT_U15_W:
2051 case R_C6000_SBR_GOT_L16_W:
2052 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2053 case R_C6000_EHTYPE:
ac145307
BS		 2054 if (h != NULL)
2055 {
2056 if (h->got.refcount > 0)
2057 h->got.refcount -= 1;
2058 }
2059 else if (local_got_refcounts != NULL)
2060 {
2061 if (local_got_refcounts[r_symndx] > 0)
2062 local_got_refcounts[r_symndx] -= 1;
2063 }
2064 break;
2065
2066 default:
2067 break;
2068 }
2069 }
2070
2071 return TRUE;
2072}
2073
2074/* Adjust a symbol defined by a dynamic object and referenced by a
2075 regular object. The current definition is in some section of the
2076 dynamic object, but we're not including those sections. We have to
2077 change the definition to something the rest of the link can
2078 understand. */
2079
2080static bfd_boolean
2081elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info,
2082 struct elf_link_hash_entry *h)
2083{
2084 struct elf32_tic6x_link_hash_table *htab;
2085 bfd *dynobj;
2086 asection *s;
2087
2088 dynobj = elf_hash_table (info)->dynobj;
2089
2090 /* Make sure we know what is going on here. */
2091 BFD_ASSERT (dynobj != NULL
2092 && (h->needs_plt
2093 || h->u.weakdef != NULL
2094 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
2095
2096 /* If this is a function, put it in the procedure linkage table. We
2097 will fill in the contents of the procedure linkage table later,
2098 when we know the address of the .got section. */
2099 if (h->type == STT_FUNC
2100 || h->needs_plt)
2101 {
2102 if (h->plt.refcount <= 0
2103 || SYMBOL_CALLS_LOCAL (info, h)
2104 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2105 && h->root.type == bfd_link_hash_undefweak))
2106 {
2107 /* This case can occur if we saw a PLT32 reloc in an input
2108 file, but the symbol was never referred to by a dynamic
2109 object, or if all references were garbage collected. In
2110 such a case, we don't actually need to build a procedure
2111 linkage table, and we can just do a PC32 reloc instead. */
2112 h->plt.offset = (bfd_vma) -1;
2113 h->needs_plt = 0;
2114 }
2115
2116 return TRUE;
2117 }
2118
2119 /* If this is a weak symbol, and there is a real definition, the
2120 processor independent code will have arranged for us to see the
2121 real definition first, and we can just use the same value. */
2122 if (h->u.weakdef != NULL)
2123 {
2124 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2125 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2126 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2127 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2128 h->non_got_ref = h->u.weakdef->non_got_ref;
2129 return TRUE;
2130 }
2131
2132 /* This is a reference to a symbol defined by a dynamic object which
2133 is not a function. */
2134
2135 /* If we are creating a shared library, we must presume that the
2136 only references to the symbol are via the global offset table.
2137 For such cases we need not do anything here; the relocations will
2138 be handled correctly by relocate_section. */
2139 if (info->shared)
2140 return TRUE;
2141
2142 /* If there are no references to this symbol that do not use the
2143 GOT, we don't need to generate a copy reloc. */
2144 if (!h->non_got_ref)
2145 return TRUE;
2146
2147 /* If -z nocopyreloc was given, we won't generate them either. */
2148 if (info->nocopyreloc)
2149 {
2150 h->non_got_ref = 0;
2151 return TRUE;
2152 }
2153
2154 htab = elf32_tic6x_hash_table (info);
2155 if (htab == NULL)
2156 return FALSE;
2157
2158 if (h->size == 0)
2159 {
2160 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
2161 h->root.root.string);
2162 return TRUE;
2163 }
2164
2165 /* We must allocate the symbol in our .dynbss section, which will
2166 become part of the .bss section of the executable. There will be
2167 an entry for this symbol in the .dynsym section. The dynamic
2168 object will contain position independent code, so all references
2169 from the dynamic object to this symbol will go through the global
2170 offset table. The dynamic linker will use the .dynsym entry to
2171 determine the address it must put in the global offset table, so
2172 both the dynamic object and the regular object will refer to the
2173 same memory location for the variable. */
2174
2175 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2176 copy the initial value out of the dynamic object and into the
2177 runtime process image. */
2178 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2179 {
2180 htab->srelbss->size += sizeof (Elf32_External_Rela);
2181 h->needs_copy = 1;
2182 }
2183
2184 s = htab->sdynbss;
2185
2186 return _bfd_elf_adjust_dynamic_copy (h, s);
2187}
2188
41820509
JM		 2189static bfd_boolean
2190elf32_tic6x_new_section_hook (bfd *abfd, asection *sec)
2191{
2192 bfd_boolean ret;
2193
fbd9ad90
PB		 2194 /* Allocate target specific section data. */
2195 if (!sec->used_by_bfd)
2196 {
2197 _tic6x_elf_section_data *sdata;
2198 bfd_size_type amt = sizeof (*sdata);
2199
2200 sdata = (_tic6x_elf_section_data *) bfd_zalloc (abfd, amt);
2201 if (sdata == NULL)
2202 return FALSE;
2203 sec->used_by_bfd = sdata;
2204 }
2205
41820509
JM		 2206 ret = _bfd_elf_new_section_hook (abfd, sec);
2207 sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p;
2208
2209 return ret;
2210}
2211
2212/* Return true if relocation REL against section SEC is a REL rather
2213 than RELA relocation. RELOCS is the first relocation in the
2214 section and ABFD is the bfd that contains SEC. */
2215
2216static bfd_boolean
2217elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec,
2218 const Elf_Internal_Rela *relocs,
2219 const Elf_Internal_Rela *rel)
2220{
2221 Elf_Internal_Shdr *rel_hdr;
2222 const struct elf_backend_data *bed;
2223
2224 /* To determine which flavor of relocation this is, we depend on the
d4730f92
BS		 2225 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
2226 rel_hdr = elf_section_data (sec)->rel.hdr;
2227 if (rel_hdr == NULL)
2228 return FALSE;
41820509 2229 bed = get_elf_backend_data (abfd);
d4730f92
BS		 2230 return ((size_t) (rel - relocs)
2231 < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel);
41820509
JM		 2232}
2233
ac145307
BS		 2234/* We need dynamic symbols for every section, since segments can
2235 relocate independently. */
2236static bfd_boolean
2237elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2238 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2239 asection *p)
2240{
2241 switch (elf_section_data (p)->this_hdr.sh_type)
2242 {
2243 case SHT_PROGBITS:
2244 case SHT_NOBITS:
2245 /* If sh_type is yet undecided, assume it could be
2246 SHT_PROGBITS/SHT_NOBITS. */
2247 case SHT_NULL:
2248 return FALSE;
2249
2250 /* There shouldn't be section relative relocations
2251 against any other section. */
2252 default:
2253 return TRUE;
2254 }
2255}
2256
40b36596
JM		 2257static bfd_boolean
2258elf32_tic6x_relocate_section (bfd *output_bfd,
2259 struct bfd_link_info *info,
2260 bfd *input_bfd,
2261 asection *input_section,
2262 bfd_byte *contents,
2263 Elf_Internal_Rela *relocs,
2264 Elf_Internal_Sym *local_syms,
2265 asection **local_sections)
2266{
ac145307 2267 struct elf32_tic6x_link_hash_table *htab;
40b36596
JM		 2268 Elf_Internal_Shdr *symtab_hdr;
2269 struct elf_link_hash_entry **sym_hashes;
ac145307 2270 bfd_vma *local_got_offsets;
40b36596
JM		 2271 Elf_Internal_Rela *rel;
2272 Elf_Internal_Rela *relend;
2273 bfd_boolean ok = TRUE;
2274
ac145307 2275 htab = elf32_tic6x_hash_table (info);
40b36596
JM		 2276 symtab_hdr = & elf_symtab_hdr (input_bfd);
2277 sym_hashes = elf_sym_hashes (input_bfd);
ac145307 2278 local_got_offsets = elf_local_got_offsets (input_bfd);
40b36596
JM		 2279
2280 relend = relocs + input_section->reloc_count;
2281
2282 for (rel = relocs; rel < relend; rel ++)
2283 {
2284 int r_type;
2285 unsigned long r_symndx;
2286 arelent bfd_reloc;
2287 reloc_howto_type *howto;
2288 Elf_Internal_Sym *sym;
2289 asection *sec;
2290 struct elf_link_hash_entry *h;
4a732032 2291 bfd_vma off, off2, relocation;
40b36596
JM		 2292 bfd_boolean unresolved_reloc;
2293 bfd_reloc_status_type r;
2294 struct bfd_link_hash_entry *sbh;
41820509 2295 bfd_boolean is_rel;
40b36596
JM		 2296
2297 r_type = ELF32_R_TYPE (rel->r_info);
2298 r_symndx = ELF32_R_SYM (rel->r_info);
2299
41820509
JM		 2300 is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section,
2301 relocs, rel);
2302
2303 if (is_rel)
2304 elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel);
2305 else
2306 elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel);
40b36596
JM		 2307 howto = bfd_reloc.howto;
2308 if (howto == NULL)
2309 {
2310 bfd_set_error (bfd_error_bad_value);
2311 return FALSE;
2312 }
2313
2314 h = NULL;
2315 sym = NULL;
2316 sec = NULL;
2317 unresolved_reloc = FALSE;
2318
2319 if (r_symndx < symtab_hdr->sh_info)
2320 {
2321 sym = local_syms + r_symndx;
2322 sec = local_sections[r_symndx];
2323 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2324 }
2325 else
2326 {
2327 bfd_boolean warned;
2328
2329 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2330 r_symndx, symtab_hdr, sym_hashes,
2331 h, sec, relocation,
2332 unresolved_reloc, warned);
2333 }
2334
2335 if (sec != NULL && elf_discarded_section (sec))
e4067dbb
DJ		 2336 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2337 rel, relend, howto, contents);
40b36596
JM		 2338
2339 if (info->relocatable)
41820509
JM		 2340 {
2341 if (is_rel
2342 && sym != NULL
2343 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2344 {
2345 rel->r_addend = 0;
2346 relocation = sec->output_offset + sym->st_value;
2347 r = _bfd_relocate_contents (howto, input_bfd, relocation,
2348 contents + rel->r_offset);
2349 goto done_reloc;
2350 }
2351 continue;
2352 }
40b36596
JM		 2353
2354 switch (r_type)
2355 {
2356 case R_C6000_NONE:
2357 case R_C6000_ALIGN:
2358 case R_C6000_FPHEAD:
2359 case R_C6000_NOCMP:
2360 /* No action needed. */
2361 continue;
2362
2363 case R_C6000_PCR_S21:
ac145307
BS		 2364 /* A branch to an undefined weak symbol is turned into a
2365 "b .s2 B3" instruction if the existing insn is of the
2366 form "b .s2 symbol". */
2367 if (h ? h->root.type == bfd_link_hash_undefweak
2368 && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1)
2369 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2370 {
2371 unsigned long oldval;
2372 oldval = bfd_get_32 (input_bfd, contents + rel->r_offset);
2373
2374 if ((oldval & 0x7e) == 0x12)
2375 {
2376 oldval &= 0xF0000001;
2377 bfd_put_32 (input_bfd, oldval | 0x000c0362,
2378 contents + rel->r_offset);
2379 r = bfd_reloc_ok;
2380 goto done_reloc;
2381 }
2382 }
2383
40b36596
JM		 2384 case R_C6000_PCR_S12:
2385 case R_C6000_PCR_S10:
2386 case R_C6000_PCR_S7:
ac145307
BS		 2387 if (h != NULL
2388 && h->plt.offset != (bfd_vma) -1
2389 && htab->elf.splt != NULL)
2390 {
2391 relocation = (htab->elf.splt->output_section->vma
2392 + htab->elf.splt->output_offset
2393 + h->plt.offset);
2394 }
2395
40b36596
JM		 2396 /* Generic PC-relative handling produces a value relative to
2397 the exact location of the relocation. Adjust it to be
2398 relative to the start of the fetch packet instead. */
2399 relocation += (input_section->output_section->vma
2400 + input_section->output_offset
2401 + rel->r_offset) & 0x1f;
ac145307
BS		 2402 unresolved_reloc = FALSE;
2403 break;
2404
4a732032
BS		 2405 case R_C6000_PCR_H16:
2406 case R_C6000_PCR_L16:
2407 off = (input_section->output_section->vma
2408 + input_section->output_offset
2409 + rel->r_offset);
2410 /* These must be calculated as R = S - FP(FP(PC) - A).
2411 PC, here, is the value we just computed in OFF. RELOCATION
2412 has the address of S + A. */
2413 relocation -= rel->r_addend;
2414 off2 = ((off & ~(bfd_vma)0x1f) - rel->r_addend) & (bfd_vma)~0x1f;
2415 off2 = relocation - off2;
2416 relocation = off + off2;
2417 break;
2418
ac145307
BS		 2419 case R_C6000_DSBT_INDEX:
2420 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index;
2421 if (!info->shared || relocation != 0)
2422 break;
2423
2424 /* fall through */
40b36596
JM		 2425 case R_C6000_ABS32:
2426 case R_C6000_ABS16:
2427 case R_C6000_ABS8:
2428 case R_C6000_ABS_S16:
2429 case R_C6000_ABS_L16:
2430 case R_C6000_ABS_H16:
ac145307
BS		 2431 /* When generating a shared object or relocatable executable, these
2432 relocations are copied into the output file to be resolved at
2433 run time. */
2434 if ((info->shared || elf32_tic6x_using_dsbt (output_bfd))
2435 && (input_section->flags & SEC_ALLOC)
2436 && (h == NULL
2437 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2438 || h->root.type != bfd_link_hash_undefweak))
2439 {
2440 Elf_Internal_Rela outrel;
2441 bfd_boolean skip, relocate;
2442 asection *sreloc;
2443
2444 unresolved_reloc = FALSE;
2445
2446 sreloc = elf_section_data (input_section)->sreloc;
2447 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
2448
2449 skip = FALSE;
2450 relocate = FALSE;
2451
2452 outrel.r_offset =
2453 _bfd_elf_section_offset (output_bfd, info, input_section,
2454 rel->r_offset);
2455 if (outrel.r_offset == (bfd_vma) -1)
2456 skip = TRUE;
2457 else if (outrel.r_offset == (bfd_vma) -2)
2458 skip = TRUE, relocate = TRUE;
2459 outrel.r_offset += (input_section->output_section->vma
2460 + input_section->output_offset);
2461
2462 if (skip)
2463 memset (&outrel, 0, sizeof outrel);
2464 else if (h != NULL
2465 && h->dynindx != -1
2466 && (!info->shared
2467 || !info->symbolic
2468 || !h->def_regular))
2469 {
2470 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2471 outrel.r_addend = rel->r_addend;
2472 }
2473 else
2474 {
2475 long indx;
2476
2477 outrel.r_addend = relocation + rel->r_addend;
2478
2479 if (bfd_is_abs_section (sec))
2480 indx = 0;
2481 else if (sec == NULL || sec->owner == NULL)
2482 {
2483 bfd_set_error (bfd_error_bad_value);
2484 return FALSE;
2485 }
2486 else
2487 {
2488 asection *osec;
2489
2490 osec = sec->output_section;
2491 indx = elf_section_data (osec)->dynindx;
2492 outrel.r_addend -= osec->vma;
2493 BFD_ASSERT (indx != 0);
2494 }
2495
2496 outrel.r_info = ELF32_R_INFO (indx, r_type);
2497 }
2498
2499 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel);
2500
2501 /* If this reloc is against an external symbol, we do not want to
2502 fiddle with the addend. Otherwise, we need to include the symbol
2503 value so that it becomes an addend for the dynamic reloc. */
2504 if (! relocate)
2505 continue;
2506 }
2507
40b36596
JM		 2508 /* Generic logic OK. */
2509 break;
2510
2511 case R_C6000_SBR_U15_B:
2512 case R_C6000_SBR_U15_H:
2513 case R_C6000_SBR_U15_W:
2514 case R_C6000_SBR_S16:
2515 case R_C6000_SBR_L16_B:
2516 case R_C6000_SBR_L16_H:
2517 case R_C6000_SBR_L16_W:
2518 case R_C6000_SBR_H16_B:
2519 case R_C6000_SBR_H16_H:
2520 case R_C6000_SBR_H16_W:
2521 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
2522 FALSE, FALSE, TRUE);
2523 if (sbh != NULL
2524 && (sbh->type == bfd_link_hash_defined
2525 || sbh->type == bfd_link_hash_defweak))
ac145307
BS		 2526 {
2527 if (h ? (h->root.type == bfd_link_hash_undefweak
2528 && (htab->elf.splt == NULL
2529 || h->plt.offset == (bfd_vma) -1))
2530 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2531 relocation = 0;
2532 else
2533 relocation -= (sbh->u.def.value
2534 + sbh->u.def.section->output_section->vma
2535 + sbh->u.def.section->output_offset);
2536 }
40b36596
JM		 2537 else
2538 {
2539 (*_bfd_error_handler) (_("%B: SB-relative relocation but "
2540 "__c6xabi_DSBT_BASE not defined"),
2541 input_bfd);
2542 ok = FALSE;
2543 continue;
2544 }
2545 break;
2546
2547 case R_C6000_SBR_GOT_U15_W:
2548 case R_C6000_SBR_GOT_L16_W:
2549 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2550 case R_C6000_EHTYPE:
ac145307
BS		 2551 /* Relocation is to the entry for this symbol in the global
2552 offset table. */
2553 if (htab->elf.sgot == NULL)
2554 abort ();
2555
2556 if (h != NULL)
2557 {
2558 bfd_boolean dyn;
2559
2560 off = h->got.offset;
2561 dyn = htab->elf.dynamic_sections_created;
2562 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2563 || (info->shared
2564 && SYMBOL_REFERENCES_LOCAL (info, h))
2565 || (ELF_ST_VISIBILITY (h->other)
2566 && h->root.type == bfd_link_hash_undefweak))
2567 {
2568 /* This is actually a static link, or it is a
2569 -Bsymbolic link and the symbol is defined
2570 locally, or the symbol was forced to be local
2571 because of a version file. We must initialize
2572 this entry in the global offset table. Since the
2573 offset must always be a multiple of 4, we use the
2574 least significant bit to record whether we have
2575 initialized it already.
2576
2577 When doing a dynamic link, we create a .rel.got
2578 relocation entry to initialize the value. This
2579 is done in the finish_dynamic_symbol routine. */
2580 if ((off & 1) != 0)
2581 off &= ~1;
2582 else
2583 {
2584 bfd_put_32 (output_bfd, relocation,
2585 htab->elf.sgot->contents + off);
2586 h->got.offset |= 1;
2587
2588 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
2589 h)
2590 && !(ELF_ST_VISIBILITY (h->other)
2591 && h->root.type == bfd_link_hash_undefweak))
2592 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec,
2593 off);
2594 }
2595 }
2596 else
2597 unresolved_reloc = FALSE;
2598 }
2599 else
2600 {
2601 if (local_got_offsets == NULL)
2602 abort ();
2603
2604 off = local_got_offsets[r_symndx];
2605
2606 /* The offset must always be a multiple of 4. We use
2607 the least significant bit to record whether we have
2608 already generated the necessary reloc. */
2609 if ((off & 1) != 0)
2610 off &= ~1;
2611 else
2612 {
2613 bfd_put_32 (output_bfd, relocation,
2614 htab->elf.sgot->contents + off);
2615
2616 if (info->shared || elf32_tic6x_using_dsbt (output_bfd))
2617 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off);
2618
2619 local_got_offsets[r_symndx] |= 1;
2620 }
2621 }
2622
2623 if (off >= (bfd_vma) -2)
2624 abort ();
2625
2626 if (htab->dsbt)
2627 relocation = (htab->elf.sgot->output_section->vma
2628 + htab->elf.sgot->output_offset + off
2629 - htab->dsbt->output_section->vma
2630 - htab->dsbt->output_offset);
2631 else
2632 relocation = (htab->elf.sgot->output_section->vma
2633 + htab->elf.sgot->output_offset + off
2634 - htab->elf.sgotplt->output_section->vma
2635 - htab->elf.sgotplt->output_offset);
2636
2637 if (rel->r_addend != 0)
2638 {
2639 /* We can't do anything for a relocation which is against
2640 a symbol *plus offset*. GOT holds relocations for
2641 symbols. Make this an error; the compiler isn't
2642 allowed to pass us these kinds of things. */
2643 if (h == NULL)
2644 (*_bfd_error_handler)
2645 (_("%B, section %A: relocation %s with non-zero addend %d"
2646 " against local symbol"),
2647 input_bfd,
2648 input_section,
2649 elf32_tic6x_howto_table[r_type].name,
2650 rel->r_addend);
2651 else
2652 (*_bfd_error_handler)
2653 (_("%B, section %A: relocation %s with non-zero addend %d"
2654 " against symbol `%s'"),
2655 input_bfd,
2656 input_section,
2657 elf32_tic6x_howto_table[r_type].name,
2658 rel->r_addend,
2659 h->root.root.string[0] != '\0' ? h->root.root.string
2660 : _("[whose name is lost]"));
2661
2662 bfd_set_error (bfd_error_bad_value);
2663 return FALSE;
2664 }
2665 break;
2666
40b36596 2667 case R_C6000_PREL31:
44e87ece
PB		 2668 if (h != NULL
2669 && h->plt.offset != (bfd_vma) -1
2670 && htab->elf.splt != NULL)
2671 {
2672 relocation = (htab->elf.splt->output_section->vma
2673 + htab->elf.splt->output_offset
2674 + h->plt.offset);
2675 }
2676 break;
40b36596
JM		 2677
2678 case R_C6000_COPY:
2679 /* Invalid in relocatable object. */
2680 default:
2681 /* Unknown relocation. */
2682 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2683 input_bfd, r_type);
2684 ok = FALSE;
2685 continue;
2686 }
2687
2688 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2689 contents, rel->r_offset,
2690 relocation, rel->r_addend);
2691
41820509 2692 done_reloc:
40b36596
JM		 2693 if (r == bfd_reloc_ok
2694 && howto->complain_on_overflow == complain_overflow_bitfield)
2695 {
2696 /* Generic overflow handling accepts cases the ABI says
2697 should be rejected for R_C6000_ABS16 and
2698 R_C6000_ABS8. */
2699 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
2700 bfd_vma sbit = 1 << (howto->bitsize - 1);
2701 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
2702 bfd_vma value_sbits = value & sbits;
2703
2704 if (value_sbits != 0
2705 && value_sbits != sbit
2706 && value_sbits != sbits)
2707 r = bfd_reloc_overflow;
2708 }
2709
2710 if (r != bfd_reloc_ok)
2711 {
2712 const char *name;
2713 const char *error_message;
2714
2715 if (h != NULL)
2716 name = h->root.root.string;
2717 else
2718 {
2719 name = bfd_elf_string_from_elf_section (input_bfd,
2720 symtab_hdr->sh_link,
2721 sym->st_name);
2722 if (name == NULL)
2723 return FALSE;
2724 if (*name == '\0')
2725 name = bfd_section_name (input_bfd, sec);
2726 }
2727
2728 switch (r)
2729 {
2730 case bfd_reloc_overflow:
2731 /* If the overflowing reloc was to an undefined symbol,
2732 we have already printed one error message and there
2733 is no point complaining again. */
2734 if ((! h ||
2735 h->root.type != bfd_link_hash_undefined)
2736 && (!((*info->callbacks->reloc_overflow)
2737 (info, (h ? &h->root : NULL), name, howto->name,
2738 (bfd_vma) 0, input_bfd, input_section,
2739 rel->r_offset))))
2740 return FALSE;
2741 break;
2742
2743 case bfd_reloc_undefined:
2744 if (!((*info->callbacks->undefined_symbol)
2745 (info, name, input_bfd, input_section,
2746 rel->r_offset, TRUE)))
2747 return FALSE;
2748 break;
2749
2750 case bfd_reloc_outofrange:
2751 error_message = _("out of range");
2752 goto common_error;
2753
2754 case bfd_reloc_notsupported:
2755 error_message = _("unsupported relocation");
2756 goto common_error;
2757
2758 case bfd_reloc_dangerous:
2759 error_message = _("dangerous relocation");
2760 goto common_error;
2761
2762 default:
2763 error_message = _("unknown error");
2764 /* Fall through. */
2765
2766 common_error:
2767 BFD_ASSERT (error_message != NULL);
2768 if (!((*info->callbacks->reloc_dangerous)
2769 (info, error_message, input_bfd, input_section,
2770 rel->r_offset)))
2771 return FALSE;
2772 break;
2773 }
2774 }
2775 }
2776
2777 return ok;
2778}
2779
ac145307
BS		 2780\f
2781/* Look through the relocs for a section during the first phase, and
2782 calculate needed space in the global offset table, procedure linkage
2783 table, and dynamic reloc sections. */
2784
2785static bfd_boolean
2786elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info,
2787 asection *sec, const Elf_Internal_Rela *relocs)
2788{
2789 struct elf32_tic6x_link_hash_table *htab;
2790 Elf_Internal_Shdr *symtab_hdr;
2791 struct elf_link_hash_entry **sym_hashes;
2792 const Elf_Internal_Rela *rel;
2793 const Elf_Internal_Rela *rel_end;
2794 asection *sreloc;
2795
2796 if (info->relocatable)
2797 return TRUE;
2798
2799 htab = elf32_tic6x_hash_table (info);
2800 symtab_hdr = &elf_symtab_hdr (abfd);
2801 sym_hashes = elf_sym_hashes (abfd);
2802
2803 /* Create dynamic sections for relocatable executables so that we can
2804 copy relocations. */
2a616379 2805 if ((info->shared || elf32_tic6x_using_dsbt (abfd))
ac145307
BS		 2806 && ! htab->elf.dynamic_sections_created)
2807 {
2808 if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
2809 return FALSE;
2810 }
2811
2812 sreloc = NULL;
2813
2814 rel_end = relocs + sec->reloc_count;
2815 for (rel = relocs; rel < rel_end; rel++)
2816 {
2817 unsigned int r_type;
2818 unsigned long r_symndx;
2819 struct elf_link_hash_entry *h;
2820 Elf_Internal_Sym *isym;
2821
2822 r_symndx = ELF32_R_SYM (rel->r_info);
2823 r_type = ELF32_R_TYPE (rel->r_info);
2824
2825 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
2826 {
2827 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
2828 abfd,
2829 r_symndx);
2830 return FALSE;
2831 }
2832
2833 if (r_symndx < symtab_hdr->sh_info)
2834 {
2835 /* A local symbol. */
2836 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2837 abfd, r_symndx);
2838 if (isym == NULL)
2839 return FALSE;
2840 h = NULL;
2841 }
2842 else
2843 {
2844 isym = NULL;
2845 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2846 while (h->root.type == bfd_link_hash_indirect
2847 || h->root.type == bfd_link_hash_warning)
2848 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2849 }
2850
2851 switch (r_type)
2852 {
2853 case R_C6000_PCR_S21:
44e87ece 2854 case R_C6000_PREL31:
ac145307
BS		 2855 /* This symbol requires a procedure linkage table entry. We
2856 actually build the entry in adjust_dynamic_symbol,
2857 because this might be a case of linking PIC code which is
2858 never referenced by a dynamic object, in which case we
2859 don't need to generate a procedure linkage table entry
2860 after all. */
2861
2862 /* If this is a local symbol, we resolve it directly without
2863 creating a procedure linkage table entry. */
2864 if (h == NULL)
2865 continue;
2866
2867 h->needs_plt = 1;
2868 h->plt.refcount += 1;
2869 break;
2870
2871 case R_C6000_SBR_GOT_U15_W:
2872 case R_C6000_SBR_GOT_L16_W:
2873 case R_C6000_SBR_GOT_H16_W:
2fbb87f6 2874 case R_C6000_EHTYPE:
ac145307
BS		 2875 /* This symbol requires a global offset table entry. */
2876 if (h != NULL)
2877 {
2878 h->got.refcount += 1;
2879 }
2880 else
2881 {
2882 bfd_signed_vma *local_got_refcounts;
2883
2884 /* This is a global offset table entry for a local symbol. */
2885 local_got_refcounts = elf_local_got_refcounts (abfd);
2886 if (local_got_refcounts == NULL)
2887 {
2888 bfd_size_type size;
2889
2890 size = symtab_hdr->sh_info;
2891 size *= (sizeof (bfd_signed_vma)
2892 + sizeof (bfd_vma) + sizeof(char));
2893 local_got_refcounts = bfd_zalloc (abfd, size);
2894 if (local_got_refcounts == NULL)
2895 return FALSE;
2896 elf_local_got_refcounts (abfd) = local_got_refcounts;
2897 }
2898 local_got_refcounts[r_symndx] += 1;
2899 }
2900
2901 if (htab->elf.sgot == NULL)
2902 {
2903 if (htab->elf.dynobj == NULL)
2904 htab->elf.dynobj = abfd;
2905 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
2906 return FALSE;
2907 }
2908 break;
2909
2910 case R_C6000_DSBT_INDEX:
2911 /* We'd like to check for nonzero dsbt_index here, but it's
2912 set up only after check_relocs is called. Instead, we
2913 store the number of R_C6000_DSBT_INDEX relocs in the
2914 pc_count field, and potentially discard the extra space
2915 in elf32_tic6x_allocate_dynrelocs. */
2916 if (!info->shared)
2917 break;
2918
2919 /* fall through */
2920 case R_C6000_ABS32:
2921 case R_C6000_ABS16:
2922 case R_C6000_ABS8:
2923 case R_C6000_ABS_S16:
2924 case R_C6000_ABS_L16:
2925 case R_C6000_ABS_H16:
2926 /* If we are creating a shared library, and this is a reloc
2927 against a global symbol, or a non PC relative reloc
2928 against a local symbol, then we need to copy the reloc
2929 into the shared library. However, if we are linking with
2930 -Bsymbolic, we do not need to copy a reloc against a
2931 global symbol which is defined in an object we are
2932 including in the link (i.e., DEF_REGULAR is set). At
2933 this point we have not seen all the input files, so it is
2934 possible that DEF_REGULAR is not set now but will be set
2935 later (it is never cleared). In case of a weak definition,
2936 DEF_REGULAR may be cleared later by a strong definition in
2937 a shared library. We account for that possibility below by
2938 storing information in the relocs_copied field of the hash
2939 table entry. A similar situation occurs when creating
2940 shared libraries and symbol visibility changes render the
2941 symbol local.
2942
2943 If on the other hand, we are creating an executable, we
2944 may need to keep relocations for symbols satisfied by a
2945 dynamic library if we manage to avoid copy relocs for the
2946 symbol. */
2947 if ((info->shared || elf32_tic6x_using_dsbt (abfd))
2948 && (sec->flags & SEC_ALLOC) != 0)
2949 {
2950 struct elf_dyn_relocs *p;
2951 struct elf_dyn_relocs **head;
2952
2953 /* We must copy these reloc types into the output file.
2954 Create a reloc section in dynobj and make room for
2955 this reloc. */
2956 if (sreloc == NULL)
2957 {
2958 if (htab->elf.dynobj == NULL)
2959 htab->elf.dynobj = abfd;
2960
2961 sreloc = _bfd_elf_make_dynamic_reloc_section
2962 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE);
2963
2964 if (sreloc == NULL)
2965 return FALSE;
2966 }
2967
2968 /* If this is a global symbol, we count the number of
2969 relocations we need for this symbol. */
2970 if (h != NULL)
2971 {
2972 head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs;
2973 }
2974 else
2975 {
2976 /* Track dynamic relocs needed for local syms too.
2977 We really need local syms available to do this
2978 easily. Oh well. */
2979 void **vpp;
2980 asection *s;
2981
2982 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2983 if (s == NULL)
2984 s = sec;
2985
2986 vpp = &elf_section_data (s)->local_dynrel;
2987 head = (struct elf_dyn_relocs **)vpp;
2988 }
2989
2990 p = *head;
2991 if (p == NULL || p->sec != sec)
2992 {
2993 bfd_size_type amt = sizeof *p;
2994 p = bfd_alloc (htab->elf.dynobj, amt);
2995 if (p == NULL)
2996 return FALSE;
2997 p->next = *head;
2998 *head = p;
2999 p->sec = sec;
3000 p->count = 0;
2123f9ad 3001 p->pc_count = 0;
ac145307
BS		 3002 }
3003
3004 p->count += 1;
3005 if (r_type == R_C6000_DSBT_INDEX)
3006 p->pc_count += 1;
3007 }
3008 break;
3009
3010 case R_C6000_SBR_U15_B:
3011 case R_C6000_SBR_U15_H:
3012 case R_C6000_SBR_U15_W:
3013 case R_C6000_SBR_S16:
3014 case R_C6000_SBR_L16_B:
3015 case R_C6000_SBR_L16_H:
3016 case R_C6000_SBR_L16_W:
3017 case R_C6000_SBR_H16_B:
3018 case R_C6000_SBR_H16_H:
3019 case R_C6000_SBR_H16_W:
3020 if (h != NULL && info->executable)
3021 {
3022 /* For B14-relative addresses, we might need a copy
3023 reloc. */
3024 h->non_got_ref = 1;
3025 }
3026 break;
3027
3028 default:
3029 break;
3030 }
3031 }
3032
3033 return TRUE;
3034}
3035
3036static bfd_boolean
3037elf32_tic6x_add_symbol_hook (bfd *abfd,
3038 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3039 Elf_Internal_Sym *sym,
3040 const char **namep ATTRIBUTE_UNUSED,
3041 flagword *flagsp ATTRIBUTE_UNUSED,
3042 asection **secp,
3043 bfd_vma *valp)
3044{
3045 switch (sym->st_shndx)
3046 {
3047 case SHN_TIC6X_SCOMMON:
3048 *secp = bfd_make_section_old_way (abfd, ".scommon");
3049 (*secp)->flags |= SEC_IS_COMMON;
3050 *valp = sym->st_size;
3051 bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value));
3052 break;
3053 }
3054
3055 return TRUE;
3056}
3057
3058static void
3059elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
3060{
3061 elf_symbol_type *elfsym;
3062
3063 elfsym = (elf_symbol_type *) asym;
3064 switch (elfsym->internal_elf_sym.st_shndx)
3065 {
3066 case SHN_TIC6X_SCOMMON:
3067 if (tic6x_elf_scom_section.name == NULL)
3068 {
3069 /* Initialize the small common section. */
3070 tic6x_elf_scom_section.name = ".scommon";
3071 tic6x_elf_scom_section.flags = SEC_IS_COMMON;
3072 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section;
3073 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol;
3074 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr;
3075 tic6x_elf_scom_symbol.name = ".scommon";
3076 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM;
3077 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section;
3078 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol;
3079 }
3080 asym->section = &tic6x_elf_scom_section;
3081 asym->value = elfsym->internal_elf_sym.st_size;
3082 break;
3083 }
3084}
3085
3086static int
3087elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3088 const char *name ATTRIBUTE_UNUSED,
3089 Elf_Internal_Sym *sym,
3090 asection *input_sec,
3091 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3092{
3093 /* If we see a common symbol, which implies a relocatable link, then
3094 if a symbol was small common in an input file, mark it as small
3095 common in the output file. */
3096 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
3097 sym->st_shndx = SHN_TIC6X_SCOMMON;
3098
3099 return 1;
3100}
3101
3102static bfd_boolean
3103elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
3104 asection *sec,
3105 int *retval)
3106{
3107 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3108 {
3109 *retval = SHN_TIC6X_SCOMMON;
3110 return TRUE;
3111 }
3112
3113 return FALSE;
3114}
3115
3116/* Allocate space in .plt, .got and associated reloc sections for
3117 dynamic relocs. */
3118
3119static bfd_boolean
3120elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3121{
3122 struct bfd_link_info *info;
3123 struct elf32_tic6x_link_hash_table *htab;
3124 struct elf32_tic6x_link_hash_entry *eh;
3125 struct elf_dyn_relocs *p;
3126
3127 if (h->root.type == bfd_link_hash_indirect)
3128 return TRUE;
3129
ac145307 3130 eh = (struct elf32_tic6x_link_hash_entry *) h;
ac145307
BS		 3131 info = (struct bfd_link_info *) inf;
3132 htab = elf32_tic6x_hash_table (info);
3133
3134 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0)
3135 {
3136 /* Make sure this symbol is output as a dynamic symbol.
3137 Undefined weak syms won't yet be marked as dynamic. */
3138 if (h->dynindx == -1 && !h->forced_local)
3139 {
3140 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3141 return FALSE;
3142 }
3143
3144 if (info->shared
3145 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
3146 {
3147 asection *s = htab->elf.splt;
3148
3149 /* If this is the first .plt entry, make room for the special
3150 first entry. */
3151 if (s->size == 0)
3152 s->size += PLT_ENTRY_SIZE;
3153
3154 h->plt.offset = s->size;
3155
3156 /* If this symbol is not defined in a regular file, and we are
3157 not generating a shared library, then set the symbol to this
3158 location in the .plt. This is required to make function
3159 pointers compare as equal between the normal executable and
3160 the shared library. */
3161 if (! info->shared && !h->def_regular)
3162 {
3163 h->root.u.def.section = s;
3164 h->root.u.def.value = h->plt.offset;
3165 }
3166
3167 /* Make room for this entry. */
3168 s->size += PLT_ENTRY_SIZE;
3169 /* We also need to make an entry in the .got.plt section, which
3170 will be placed in the .got section by the linker script. */
3171 htab->elf.sgotplt->size += 4;
3172 /* We also need to make an entry in the .rel.plt section. */
3173 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
3174 }
3175 else
3176 {
3177 h->plt.offset = (bfd_vma) -1;
3178 h->needs_plt = 0;
3179 }
3180 }
3181 else
3182 {
3183 h->plt.offset = (bfd_vma) -1;
3184 h->needs_plt = 0;
3185 }
3186
3187 if (h->got.refcount > 0)
3188 {
3189 asection *s;
3190
3191 /* Make sure this symbol is output as a dynamic symbol.
3192 Undefined weak syms won't yet be marked as dynamic. */
3193 if (h->dynindx == -1
3194 && !h->forced_local)
3195 {
3196 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3197 return FALSE;
3198 }
3199
3200 s = htab->elf.sgot;
3201 h->got.offset = s->size;
3202 s->size += 4;
3203
3204 if (!(ELF_ST_VISIBILITY (h->other)
3205 && h->root.type == bfd_link_hash_undefweak))
3206 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3207 }
3208 else
3209 h->got.offset = (bfd_vma) -1;
3210
3211 if (eh->dyn_relocs == NULL)
3212 return TRUE;
3213
3214 /* Discard relocs on undefined weak syms with non-default
3215 visibility. */
3216 if (info->shared || elf32_tic6x_using_dsbt (htab->obfd))
3217 {
3218 /* We use the pc_count field to hold the number of
3219 R_C6000_DSBT_INDEX relocs. */
3220 if (htab->params.dsbt_index != 0)
3221 {
3222 struct elf_dyn_relocs **pp;
3223
3224 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3225 {
3226 p->count -= p->pc_count;
3227 p->pc_count = 0;
3228 if (p->count == 0)
3229 *pp = p->next;
3230 else
3231 pp = &p->next;
3232 }
3233 }
3234
3235 if (eh->dyn_relocs != NULL
3236 && h->root.type == bfd_link_hash_undefweak)
3237 {
3238 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3239 eh->dyn_relocs = NULL;
3240
3241 /* Make sure undefined weak symbols are output as a dynamic
3242 symbol in PIEs. */
3243 else if (h->dynindx == -1
3244 && !h->forced_local)
3245 {
3246 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3247 return FALSE;
3248 }
3249 }
3250 }
3251
3252 /* Finally, allocate space. */
3253 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3254 {
3255 asection *sreloc;
3256
3257 sreloc = elf_section_data (p->sec)->sreloc;
3258
3259 BFD_ASSERT (sreloc != NULL);
3260 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3261 }
3262
3263 return TRUE;
3264}
3265
3266/* Find any dynamic relocs that apply to read-only sections. */
3267
3268static bfd_boolean
3269elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3270{
3271 struct elf32_tic6x_link_hash_entry *eh;
3272 struct elf_dyn_relocs *p;
3273
ac145307
BS		 3274 eh = (struct elf32_tic6x_link_hash_entry *) h;
3275 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3276 {
3277 asection *s = p->sec->output_section;
3278
3279 if (s != NULL && (s->flags & SEC_READONLY) != 0)
3280 {
3281 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3282
3283 info->flags |= DF_TEXTREL;
3284
3285 /* Not an error, just cut short the traversal. */
3286 return FALSE;
3287 }
3288 }
3289 return TRUE;
3290}
3291
3292/* Set the sizes of the dynamic sections. */
3293
3294static bfd_boolean
3295elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3296{
3297 struct elf32_tic6x_link_hash_table *htab;
3298 bfd *dynobj;
3299 asection *s;
3300 bfd_boolean relocs;
3301 bfd *ibfd;
3302
3303 htab = elf32_tic6x_hash_table (info);
3304 dynobj = htab->elf.dynobj;
3305 if (dynobj == NULL)
3306 abort ();
3307
3308 if (htab->elf.dynamic_sections_created)
3309 {
3310 /* Set the contents of the .interp section to the interpreter. */
3311 if (info->executable)
3312 {
3313 s = bfd_get_section_by_name (dynobj, ".interp");
3314 if (s == NULL)
3315 abort ();
3316 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3317 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3318 }
3319 }
3320
3321 /* Set up .got offsets for local syms, and space for local dynamic
3322 relocs. */
3323 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
3324 {
3325 bfd_signed_vma *local_got;
3326 bfd_signed_vma *end_local_got;
3327 char *local_tls_type;
3328 bfd_vma *local_tlsdesc_gotent;
3329 bfd_size_type locsymcount;
3330 Elf_Internal_Shdr *symtab_hdr;
3331 asection *srel;
3332
3333 for (s = ibfd->sections; s != NULL; s = s->next)
3334 {
3335 struct elf_dyn_relocs *p;
3336
3337 for (p = ((struct elf_dyn_relocs *)
3338 elf_section_data (s)->local_dynrel);
3339 p != NULL;
3340 p = p->next)
3341 {
3342 if (!bfd_is_abs_section (p->sec)
3343 && bfd_is_abs_section (p->sec->output_section))
3344 {
3345 /* Input section has been discarded, either because
3346 it is a copy of a linkonce section or due to
3347 linker script /DISCARD/, so we'll be discarding
3348 the relocs too. */
3349 }
3350 else if (p->count != 0)
3351 {
3352 srel = elf_section_data (p->sec)->sreloc;
3353 srel->size += p->count * sizeof (Elf32_External_Rela);
3354 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3355 info->flags |= DF_TEXTREL;
3356 }
3357 }
3358 }
3359
3360 local_got = elf_local_got_refcounts (ibfd);
3361 if (!local_got)
3362 continue;
3363
3364 symtab_hdr = &elf_symtab_hdr (ibfd);
3365 locsymcount = symtab_hdr->sh_info;
3366 end_local_got = local_got + locsymcount;
3367 s = htab->elf.sgot;
3368 srel = htab->elf.srelgot;
3369 for (; local_got < end_local_got;
3370 ++local_got, ++local_tls_type, ++local_tlsdesc_gotent)
3371 {
3372 if (*local_got > 0)
3373 {
3374 *local_got = s->size;
3375 s->size += 4;
3376
3377 if (info->shared || elf32_tic6x_using_dsbt (output_bfd))
3378 {
3379 srel->size += sizeof (Elf32_External_Rela);
3380 }
3381 }
3382 else
3383 *local_got = (bfd_vma) -1;
3384 }
3385 }
3386
3387 /* Allocate global sym .plt and .got entries, and space for global
3388 sym dynamic relocs. */
3389 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info);
3390
3391 /* We now have determined the sizes of the various dynamic sections.
3392 Allocate memory for them. */
3393 relocs = FALSE;
3394 for (s = dynobj->sections; s != NULL; s = s->next)
3395 {
3396 bfd_boolean strip_section = TRUE;
3397
3398 if ((s->flags & SEC_LINKER_CREATED) == 0)
3399 continue;
3400
3401 if (s == htab->dsbt)
3402 s->size = 4 * htab->params.dsbt_size;
3403 else if (s == htab->elf.splt
3404 || s == htab->elf.sgot
3405 || s == htab->elf.sgotplt
3406 || s == htab->sdynbss)
3407 {
3408 /* Strip this section if we don't need it; see the
3409 comment below. */
3410 /* We'd like to strip these sections if they aren't needed, but if
3411 we've exported dynamic symbols from them we must leave them.
3412 It's too late to tell BFD to get rid of the symbols. */
3413
3414 if (htab->elf.hplt != NULL)
3415 strip_section = FALSE;
3416
3417 /* Round up the size of the PLT section to a multiple of 32. */
3418 if (s == htab->elf.splt && s->size > 0)
3419 s->size = (s->size + 31) & ~(bfd_vma)31;
3420 }
3421 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
3422 {
3423 if (s->size != 0
3424 && s != htab->elf.srelplt)
3425 relocs = TRUE;
3426
3427 /* We use the reloc_count field as a counter if we need
3428 to copy relocs into the output file. */
3429 s->reloc_count = 0;
3430 }
3431 else
3432 {
3433 /* It's not one of our sections, so don't allocate space. */
3434 continue;
3435 }
3436
3437 if (s->size == 0)
3438 {
3439 /* If we don't need this section, strip it from the
3440 output file. This is mostly to handle .rel.bss and
3441 .rel.plt. We must create both sections in
3442 create_dynamic_sections, because they must be created
3443 before the linker maps input sections to output
3444 sections. The linker does that before
3445 adjust_dynamic_symbol is called, and it is that
3446 function which decides whether anything needs to go
3447 into these sections. */
3448 if (strip_section)
3449 s->flags |= SEC_EXCLUDE;
3450 continue;
3451 }
3452
3453 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3454 continue;
3455
3456 /* Allocate memory for the section contents. We use bfd_zalloc
3457 here in case unused entries are not reclaimed before the
3458 section's contents are written out. This should not happen,
3459 but this way if it does, we get a R_C6000_NONE reloc instead
3460 of garbage. */
3461 s->contents = bfd_zalloc (dynobj, s->size);
3462 if (s->contents == NULL)
3463 return FALSE;
3464 }
3465
3466 if (htab->elf.dynamic_sections_created)
3467 {
3468 /* Add some entries to the .dynamic section. We fill in the
3469 values later, in elf32_tic6x_finish_dynamic_sections, but we
3470 must add the entries now so that we get the correct size for
3471 the .dynamic section. The DT_DEBUG entry is filled in by the
3472 dynamic linker and used by the debugger. */
3473#define add_dynamic_entry(TAG, VAL) \
3474 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3475
3476 if (info->executable)
3477 {
3478 if (!add_dynamic_entry (DT_DEBUG, 0))
3479 return FALSE;
3480 }
3481
3482 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0)
3483 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size)
3484 || !add_dynamic_entry (DT_C6000_DSBT_INDEX,
3485 htab->params.dsbt_index))
3486 return FALSE;
3487
3488 if (htab->elf.splt->size != 0)
3489 {
3490 if (!add_dynamic_entry (DT_PLTGOT, 0)
3491 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3492 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3493 || !add_dynamic_entry (DT_JMPREL, 0))
3494 return FALSE;
3495 }
3496
3497 if (relocs)
3498 {
3499 if (!add_dynamic_entry (DT_RELA, 0)
3500 || !add_dynamic_entry (DT_RELASZ, 0)
3501 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3502 return FALSE;
3503
3504 /* If any dynamic relocs apply to a read-only section,
3505 then we need a DT_TEXTREL entry. */
3506 if ((info->flags & DF_TEXTREL) == 0)
3507 elf_link_hash_traverse (&htab->elf,
3508 elf32_tic6x_readonly_dynrelocs, info);
3509
3510 if ((info->flags & DF_TEXTREL) != 0)
3511 {
3512 if (!add_dynamic_entry (DT_TEXTREL, 0))
3513 return FALSE;
3514 }
3515 }
3516 }
3517#undef add_dynamic_entry
3518
3519 return TRUE;
3520}
3521
3522/* This function is called after all the input files have been read,
3523 and the input sections have been assigned to output sections. */
3524
3525static bfd_boolean
3526elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
3527{
3528 if (elf32_tic6x_using_dsbt (output_bfd) && !info->relocatable)
3529 {
3530 struct elf_link_hash_entry *h;
3531
3532 /* Force a PT_GNU_STACK segment to be created. */
3533 if (! elf_tdata (output_bfd)->stack_flags)
3534 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
3535
3536 /* Define __stacksize if it's not defined yet. */
3537 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3538 FALSE, FALSE, FALSE);
3539 if (! h || h->root.type != bfd_link_hash_defined
3540 || h->type != STT_OBJECT
3541 || !h->def_regular)
3542 {
3543 struct bfd_link_hash_entry *bh = NULL;
3544
3545 if (!(_bfd_generic_link_add_one_symbol
3546 (info, output_bfd, "__stacksize",
3547 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
3548 (const char *) NULL, FALSE,
3549 get_elf_backend_data (output_bfd)->collect, &bh)))
3550 return FALSE;
3551
3552 h = (struct elf_link_hash_entry *) bh;
3553 h->def_regular = 1;
3554 h->type = STT_OBJECT;
3555 }
3556 }
3557 return TRUE;
3558}
3559
3560static bfd_boolean
3561elf32_tic6x_modify_program_headers (bfd *output_bfd,
3562 struct bfd_link_info *info)
3563{
3564 struct elf_obj_tdata *tdata = elf_tdata (output_bfd);
3565 struct elf_segment_map *m;
3566 Elf_Internal_Phdr *p;
3567
3568 /* objcopy and strip preserve what's already there using
3569 elf32_tic6x_copy_private_bfd_data (). */
3570 if (! info)
3571 return TRUE;
3572
3573 for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
3574 if (m->p_type == PT_GNU_STACK)
3575 break;
3576
3577 if (m)
3578 {
3579 struct elf_link_hash_entry *h;
3580
3581 /* Obtain the pointer to the __stacksize symbol. */
3582 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3583 FALSE, FALSE, FALSE);
3584 if (h)
3585 {
3586 while (h->root.type == bfd_link_hash_indirect
3587 || h->root.type == bfd_link_hash_warning)
3588 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3589 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
3590 }
3591
3592 /* Set the header p_memsz from the symbol value. We
3593 intentionally ignore the symbol section. */
3594 if (h && h->root.type == bfd_link_hash_defined)
3595 p->p_memsz = h->root.u.def.value;
3596 else
3597 p->p_memsz = DEFAULT_STACK_SIZE;
3598
3599 p->p_align = 8;
3600 }
3601
3602 return TRUE;
3603}
3604
3605static bfd_boolean
3606elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3607 struct bfd_link_info *info)
3608{
3609 struct elf32_tic6x_link_hash_table *htab;
3610 bfd *dynobj;
3611 asection *sdyn;
3612
3613 htab = elf32_tic6x_hash_table (info);
3614 dynobj = htab->elf.dynobj;
3615 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3616
3617 if (elf_hash_table (info)->dynamic_sections_created)
3618 {
3619 Elf32_External_Dyn * dyncon;
3620 Elf32_External_Dyn * dynconend;
3621
3622 BFD_ASSERT (sdyn != NULL);
3623
3624 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3625 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3626
3627 for (; dyncon < dynconend; dyncon++)
3628 {
3629 Elf_Internal_Dyn dyn;
3630 asection *s;
3631
3632 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3633
3634 switch (dyn.d_tag)
3635 {
3636 default:
3637 break;
3638
3639 case DT_C6000_DSBT_BASE:
3640 s = htab->dsbt;
3641 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset);
3642 break;
3643
3644 case DT_PLTGOT:
3645 s = htab->elf.sgotplt;
3646 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3647 break;
3648
3649 case DT_JMPREL:
3650 s = htab->elf.srelplt;
3651 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3652 break;
3653
3654 case DT_PLTRELSZ:
3655 s = htab->elf.srelplt;
3656 dyn.d_un.d_val = s->size;
3657 break;
3658 }
3659 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3660 }
3661
3662 /* Fill in the first entry in the procedure linkage table. */
3663 if (htab->elf.splt && htab->elf.splt->size > 0)
3664 {
3665 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma
3666 + htab->elf.sgotplt->output_offset
3667 - htab->dsbt->output_section->vma
3668 - htab->dsbt->output_offset) / 4;
3669
3670 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3671 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e,
3672 htab->elf.splt->contents);
3673 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3674 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e,
3675 htab->elf.splt->contents + 4);
3676 /* nop 3 */
3677 bfd_put_32 (output_bfd, 0x00004000,
3678 htab->elf.splt->contents + 8);
3679 /* b .s2 b2 */
3680 bfd_put_32 (output_bfd, 0x00080362,
3681 htab->elf.splt->contents + 12);
3682 /* nop 5 */
3683 bfd_put_32 (output_bfd, 0x00008000,
3684 htab->elf.splt->contents + 16);
3685
3686 elf_section_data (htab->elf.splt->output_section)
3687 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3688 }
3689 }
3690
3691 return TRUE;
3692}
3693
3694/* Return address for Ith PLT stub in section PLT, for relocation REL
3695 or (bfd_vma) -1 if it should not be included. */
3696
3697static bfd_vma
3698elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt,
3699 const arelent *rel ATTRIBUTE_UNUSED)
3700{
3701 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3702}
3703
3704static int
3705elf32_tic6x_obj_attrs_arg_type (int tag)
59e6276b 3706{
3cbd1c06 3707 if (tag == Tag_ABI_compatibility)
59e6276b 3708 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
87779176
JM		 3709 else if (tag & 1)
3710 return ATTR_TYPE_FLAG_STR_VAL;
59e6276b 3711 else
59e6276b
JM		 3712 return ATTR_TYPE_FLAG_INT_VAL;
3713}
3714
87779176
JM		 3715static int
3716elf32_tic6x_obj_attrs_order (int num)
3717{
3718 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
3719 return Tag_ABI_conformance;
3720 if ((num - 1) < Tag_ABI_conformance)
3721 return num - 1;
3722 return num;
3723}
3724
0547accf
JM		 3725static bfd_boolean
3726elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
3727{
3728 if ((tag & 127) < 64)
3729 {
3730 _bfd_error_handler
3731 (_("%B: error: unknown mandatory EABI object attribute %d"),
3732 abfd, tag);
3733 bfd_set_error (bfd_error_bad_value);
3734 return FALSE;
3735 }
3736 else
3737 {
3738 _bfd_error_handler
3739 (_("%B: warning: unknown EABI object attribute %d"),
3740 abfd, tag);
3741 return TRUE;
3742 }
3743}
3744
75fa6dc1 3745/* Merge the Tag_ISA attribute values ARCH1 and ARCH2
59e6276b
JM		 3746 and return the merged value. At present, all merges succeed, so no
3747 return value for errors is defined. */
3748
3749int
3750elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
3751{
3752 int min_arch, max_arch;
3753
3754 min_arch = (arch1 < arch2 ? arch1 : arch2);
3755 max_arch = (arch1 > arch2 ? arch1 : arch2);
3756
3757 /* In most cases, the numerically greatest value is the correct
3758 merged value, but merging C64 and C67 results in C674X. */
75fa6dc1
JM		 3759 if ((min_arch == C6XABI_Tag_ISA_C67X
3760 || min_arch == C6XABI_Tag_ISA_C67XP)
3761 && (max_arch == C6XABI_Tag_ISA_C64X
3762 || max_arch == C6XABI_Tag_ISA_C64XP))
3763 return C6XABI_Tag_ISA_C674X;
59e6276b
JM		 3764
3765 return max_arch;
3766}
3767
87779176
JM		 3768/* Convert a Tag_ABI_array_object_alignment or
3769 Tag_ABI_array_object_align_expected tag value TAG to a
3770 corresponding alignment value; return the alignment, or -1 for an
3771 unknown tag value. */
3772
3773static int
3774elf32_tic6x_tag_to_array_alignment (int tag)
3775{
3776 switch (tag)
3777 {
3778 case 0:
3779 return 8;
3780
3781 case 1:
3782 return 4;
3783
3784 case 2:
3785 return 16;
3786
3787 default:
3788 return -1;
3789 }
3790}
3791
3792/* Convert a Tag_ABI_array_object_alignment or
3793 Tag_ABI_array_object_align_expected alignment ALIGN to a
3794 corresponding tag value; return the tag value. */
3795
3796static int
3797elf32_tic6x_array_alignment_to_tag (int align)
3798{
3799 switch (align)
3800 {
3801 case 8:
3802 return 0;
3803
3804 case 4:
3805 return 1;
3806
3807 case 16:
3808 return 2;
3809
3810 default:
3811 abort ();
3812 }
3813}
3814
59e6276b
JM		 3815/* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3816 succeeded, FALSE otherwise. */
3817
3818static bfd_boolean
3819elf32_tic6x_merge_attributes (bfd *ibfd, bfd *obfd)
3820{
87779176 3821 bfd_boolean result = TRUE;
59e6276b
JM		 3822 obj_attribute *in_attr;
3823 obj_attribute *out_attr;
87779176
JM		 3824 int i;
3825 int array_align_in, array_align_out, array_expect_in, array_expect_out;
59e6276b
JM		 3826
3827 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3828 {
3829 /* This is the first object. Copy the attributes. */
3830 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3831
3832 out_attr = elf_known_obj_attributes_proc (obfd);
3833
3834 /* Use the Tag_null value to indicate the attributes have been
3835 initialized. */
3836 out_attr[0].i = 1;
3837
3838 return TRUE;
3839 }
3840
3841 in_attr = elf_known_obj_attributes_proc (ibfd);
3842 out_attr = elf_known_obj_attributes_proc (obfd);
3843
3844 /* No specification yet for handling of unknown attributes, so just
3845 ignore them and handle known ones. */
59e6276b 3846
87779176
JM		 3847 if (out_attr[Tag_ABI_stack_align_preserved].i
3848 < in_attr[Tag_ABI_stack_align_needed].i)
3849 {
3850 _bfd_error_handler
3851 (_("error: %B requires more stack alignment than %B preserves"),
3852 ibfd, obfd);
3853 result = FALSE;
3854 }
3855 if (in_attr[Tag_ABI_stack_align_preserved].i
3856 < out_attr[Tag_ABI_stack_align_needed].i)
3857 {
3858 _bfd_error_handler
3859 (_("error: %B requires more stack alignment than %B preserves"),
3860 obfd, ibfd);
3861 result = FALSE;
3862 }
3863
3864 array_align_in = elf32_tic6x_tag_to_array_alignment
3865 (in_attr[Tag_ABI_array_object_alignment].i);
3866 if (array_align_in == -1)
3867 {
3868 _bfd_error_handler
3869 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3870 ibfd);
3871 result = FALSE;
3872 }
3873 array_align_out = elf32_tic6x_tag_to_array_alignment
3874 (out_attr[Tag_ABI_array_object_alignment].i);
3875 if (array_align_out == -1)
3876 {
3877 _bfd_error_handler
3878 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3879 obfd);
3880 result = FALSE;
3881 }
3882 array_expect_in = elf32_tic6x_tag_to_array_alignment
3883 (in_attr[Tag_ABI_array_object_align_expected].i);
3884 if (array_expect_in == -1)
3885 {
3886 _bfd_error_handler
3887 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3888 ibfd);
3889 result = FALSE;
3890 }
3891 array_expect_out = elf32_tic6x_tag_to_array_alignment
3892 (out_attr[Tag_ABI_array_object_align_expected].i);
3893 if (array_expect_out == -1)
3894 {
3895 _bfd_error_handler
3896 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3897 obfd);
3898 result = FALSE;
3899 }
3900
3901 if (array_align_out < array_expect_in)
3902 {
3903 _bfd_error_handler
3904 (_("error: %B requires more array alignment than %B preserves"),
3905 ibfd, obfd);
3906 result = FALSE;
3907 }
3908 if (array_align_in < array_expect_out)
b5593623
JM		 3909 {
3910 _bfd_error_handler
87779176 3911 (_("error: %B requires more array alignment than %B preserves"),
b5593623 3912 obfd, ibfd);
87779176 3913 result = FALSE;
b5593623 3914 }
87779176
JM		 3915
3916 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
3917 {
3918 switch (i)
3919 {
3920 case Tag_ISA:
3921 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
3922 out_attr[i].i);
3923 break;
3924
3925 case Tag_ABI_wchar_t:
3926 if (out_attr[i].i == 0)
3927 out_attr[i].i = in_attr[i].i;
3928 if (out_attr[i].i != 0
3929 && in_attr[i].i != 0
3930 && out_attr[i].i != in_attr[i].i)
3931 {
3932 _bfd_error_handler
3933 (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd);
3934 }
3935 break;
3936
3937 case Tag_ABI_stack_align_needed:
3938 if (out_attr[i].i < in_attr[i].i)
3939 out_attr[i].i = in_attr[i].i;
3940 break;
3941
3942 case Tag_ABI_stack_align_preserved:
3943 if (out_attr[i].i > in_attr[i].i)
3944 out_attr[i].i = in_attr[i].i;
3945 break;
3946
3947 case Tag_ABI_DSBT:
3948 if (out_attr[i].i != in_attr[i].i)
3949 {
3950 _bfd_error_handler
3951 (_("warning: %B and %B differ in whether code is "
3952 "compiled for DSBT"),
3953 obfd, ibfd);
3954 }
3955 break;
3956
87779176 3957 case Tag_ABI_PIC:
c6a8f6e0
BS		 3958 case Tag_ABI_PID:
3959 if (out_attr[i].i > in_attr[i].i)
3960 out_attr[i].i = in_attr[i].i;
87779176
JM		 3961 break;
3962
3963 case Tag_ABI_array_object_alignment:
3964 if (array_align_out != -1
3965 && array_align_in != -1
3966 && array_align_out > array_align_in)
3967 out_attr[i].i
3968 = elf32_tic6x_array_alignment_to_tag (array_align_in);
3969 break;
3970
3971 case Tag_ABI_array_object_align_expected:
3972 if (array_expect_out != -1
3973 && array_expect_in != -1
3974 && array_expect_out < array_expect_in)
3975 out_attr[i].i
3976 = elf32_tic6x_array_alignment_to_tag (array_expect_in);
3977 break;
3978
3979 case Tag_ABI_conformance:
3980 /* Merging for this attribute is not specified. As on ARM,
3981 treat a missing attribute as no claim to conform and only
3982 merge identical values. */
3983 if (out_attr[i].s == NULL
3984 || in_attr[i].s == NULL
3985 || strcmp (out_attr[i].s,
3986 in_attr[i].s) != 0)
3987 out_attr[i].s = NULL;
3988 break;
3989
0547accf
JM		 3990 case Tag_ABI_compatibility:
3991 /* Merged in _bfd_elf_merge_object_attributes. */
3992 break;
3993
87779176 3994 default:
0547accf
JM		 3995 result
3996 = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
87779176
JM		 3997 break;
3998 }
3999
4000 if (in_attr[i].type && !out_attr[i].type)
4001 out_attr[i].type = in_attr[i].type;
4002 }
4003
3cbd1c06
JM		 4004 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
4005 if (!_bfd_elf_merge_object_attributes (ibfd, obfd))
4006 return FALSE;
59e6276b 4007
0547accf
JM		 4008 result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
4009
87779176 4010 return result;
59e6276b
JM		 4011}
4012
4013static bfd_boolean
4014elf32_tic6x_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4015{
4016 if (!_bfd_generic_verify_endian_match (ibfd, obfd))
4017 return FALSE;
4018
4019 if (!elf32_tic6x_merge_attributes (ibfd, obfd))
4020 return FALSE;
4021
4022 return TRUE;
4023}
4024
ac145307
BS		 4025static bfd_boolean
4026elf32_tic6x_copy_private_data (bfd * ibfd, bfd * obfd)
4027{
4028 _bfd_elf_copy_private_bfd_data (ibfd, obfd);
4029
4030 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (obfd))
4031 return TRUE;
4032
4033 /* Copy the stack size. */
4034 if (elf_tdata (ibfd)->phdr && elf_tdata (obfd)->phdr
4035 && elf32_tic6x_using_dsbt (ibfd) && elf32_tic6x_using_dsbt (obfd))
4036 {
4037 unsigned i;
4038
4039 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
4040 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
4041 {
4042 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
4043
4044 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
4045 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
4046 {
4047 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
4048
4049 /* Rewrite the phdrs, since we're only called after they
4050 were first written. */
4051 if (bfd_seek (obfd,
4052 (bfd_signed_vma) get_elf_backend_data (obfd)
4053 ->s->sizeof_ehdr, SEEK_SET) != 0
4054 || get_elf_backend_data (obfd)->s
4055 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
4056 elf_elfheader (obfd)->e_phnum) != 0)
4057 return FALSE;
4058 break;
4059 }
4060
4061 break;
4062 }
4063 }
4064
4065 return TRUE;
4066}
40b36596 4067
fbd9ad90
PB		 4068/* Add a new unwind edit to the list described by HEAD, TAIL. If TINDEX is zero,
4069 adds the edit to the start of the list. (The list must be built in order of
4070 ascending TINDEX: the function's callers are primarily responsible for
4071 maintaining that condition). */
4072
4073static void
4074elf32_tic6x_add_unwind_table_edit (tic6x_unwind_table_edit **head,
4075 tic6x_unwind_table_edit **tail,
4076 tic6x_unwind_edit_type type,
4077 asection *linked_section,
4078 unsigned int tindex)
4079{
4080 tic6x_unwind_table_edit *new_edit = (tic6x_unwind_table_edit *)
4081 xmalloc (sizeof (tic6x_unwind_table_edit));
4082
4083 new_edit->type = type;
4084 new_edit->linked_section = linked_section;
4085 new_edit->index = tindex;
4086
4087 if (tindex > 0)
4088 {
4089 new_edit->next = NULL;
4090
4091 if (*tail)
4092 (*tail)->next = new_edit;
4093
4094 (*tail) = new_edit;
4095
4096 if (!*head)
4097 (*head) = new_edit;
4098 }
4099 else
4100 {
4101 new_edit->next = *head;
4102
4103 if (!*tail)
4104 *tail = new_edit;
4105
4106 *head = new_edit;
4107 }
4108}
4109
4110static _tic6x_elf_section_data *
4111get_tic6x_elf_section_data (asection * sec)
4112{
4113 if (sec && sec->owner && is_tic6x_elf (sec->owner))
4114 return elf32_tic6x_section_data (sec);
4115 else
4116 return NULL;
4117}
4118
4119
4120/* Increase the size of EXIDX_SEC by ADJUST bytes. ADJUST must be negative. */
4121static void
4122elf32_tic6x_adjust_exidx_size (asection *exidx_sec, int adjust)
4123{
4124 asection *out_sec;
4125
4126 if (!exidx_sec->rawsize)
4127 exidx_sec->rawsize = exidx_sec->size;
4128
4129 bfd_set_section_size (exidx_sec->owner, exidx_sec, exidx_sec->size + adjust);
4130 out_sec = exidx_sec->output_section;
4131 /* Adjust size of output section. */
4132 bfd_set_section_size (out_sec->owner, out_sec, out_sec->size +adjust);
4133}
4134
4135/* Insert an EXIDX_CANTUNWIND marker at the end of a section. */
4136static void
4137elf32_tic6x_insert_cantunwind_after (asection *text_sec, asection *exidx_sec)
4138{
4139 struct _tic6x_elf_section_data *exidx_data;
4140
4141 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4142 elf32_tic6x_add_unwind_table_edit (
4143 &exidx_data->u.exidx.unwind_edit_list,
4144 &exidx_data->u.exidx.unwind_edit_tail,
4145 INSERT_EXIDX_CANTUNWIND_AT_END, text_sec, UINT_MAX);
4146
4147 elf32_tic6x_adjust_exidx_size (exidx_sec, 8);
4148}
4149
4150/* Scan .cx6abi.exidx tables, and create a list describing edits which
4151 should be made to those tables, such that:
4152
4153 1. Regions without unwind data are marked with EXIDX_CANTUNWIND entries.
4154 2. Duplicate entries are merged together (EXIDX_CANTUNWIND, or unwind
4155 codes which have been inlined into the index).
4156
4157 If MERGE_EXIDX_ENTRIES is false, duplicate entries are not merged.
4158
4159 The edits are applied when the tables are written
4160 (in elf32_tic6x_write_section).
4161*/
4162
4163bfd_boolean
4164elf32_tic6x_fix_exidx_coverage (asection **text_section_order,
4165 unsigned int num_text_sections,
4166 struct bfd_link_info *info,
4167 bfd_boolean merge_exidx_entries)
4168{
4169 bfd *inp;
4170 unsigned int last_second_word = 0, i;
4171 asection *last_exidx_sec = NULL;
4172 asection *last_text_sec = NULL;
4173 int last_unwind_type = -1;
4174
4175 /* Walk over all EXIDX sections, and create backlinks from the corrsponding
4176 text sections. */
4177 for (inp = info->input_bfds; inp != NULL; inp = inp->link_next)
4178 {
4179 asection *sec;
4180
4181 for (sec = inp->sections; sec != NULL; sec = sec->next)
4182 {
4183 struct bfd_elf_section_data *elf_sec = elf_section_data (sec);
4184 Elf_Internal_Shdr *hdr = &elf_sec->this_hdr;
4185
4186 if (!hdr || hdr->sh_type != SHT_C6000_UNWIND)
4187 continue;
4188
4189 if (elf_sec->linked_to)
4190 {
4191 Elf_Internal_Shdr *linked_hdr
4192 = &elf_section_data (elf_sec->linked_to)->this_hdr;
4193 struct _tic6x_elf_section_data *linked_sec_tic6x_data
4194 = get_tic6x_elf_section_data (linked_hdr->bfd_section);
4195
4196 if (linked_sec_tic6x_data == NULL)
4197 continue;
4198
4199 /* Link this .c6xabi.exidx section back from the
4200 text section it describes. */
4201 linked_sec_tic6x_data->u.text.tic6x_exidx_sec = sec;
4202 }
4203 }
4204 }
4205
4206 /* Walk all text sections in order of increasing VMA. Eilminate duplicate
4207 index table entries (EXIDX_CANTUNWIND and inlined unwind opcodes),
4208 and add EXIDX_CANTUNWIND entries for sections with no unwind table data. */
4209
4210 for (i = 0; i < num_text_sections; i++)
4211 {
4212 asection *sec = text_section_order[i];
4213 asection *exidx_sec;
4214 struct _tic6x_elf_section_data *tic6x_data
4215 = get_tic6x_elf_section_data (sec);
4216 struct _tic6x_elf_section_data *exidx_data;
4217 bfd_byte *contents = NULL;
4218 int deleted_exidx_bytes = 0;
4219 bfd_vma j;
4220 tic6x_unwind_table_edit *unwind_edit_head = NULL;
4221 tic6x_unwind_table_edit *unwind_edit_tail = NULL;
4222 Elf_Internal_Shdr *hdr;
4223 bfd *ibfd;
4224
4225 if (tic6x_data == NULL)
4226 continue;
4227
4228 exidx_sec = tic6x_data->u.text.tic6x_exidx_sec;
4229 if (exidx_sec == NULL)
4230 {
4231 /* Section has no unwind data. */
4232 if (last_unwind_type == 0 || !last_exidx_sec)
4233 continue;
4234
4235 /* Ignore zero sized sections. */
4236 if (sec->size == 0)
4237 continue;
4238
4239 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4240 last_unwind_type = 0;
4241 continue;
4242 }
4243
4244 /* Skip /DISCARD/ sections. */
4245 if (bfd_is_abs_section (exidx_sec->output_section))
4246 continue;
4247
4248 hdr = &elf_section_data (exidx_sec)->this_hdr;
4249 if (hdr->sh_type != SHT_C6000_UNWIND)
4250 continue;
4251
4252 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4253 if (exidx_data == NULL)
4254 continue;
4255
4256 ibfd = exidx_sec->owner;
4257
4258 if (hdr->contents != NULL)
4259 contents = hdr->contents;
4260 else if (! bfd_malloc_and_get_section (ibfd, exidx_sec, &contents))
4261 /* An error? */
4262 continue;
4263
4264 for (j = 0; j < hdr->sh_size; j += 8)
4265 {
4266 unsigned int second_word = bfd_get_32 (ibfd, contents + j + 4);
4267 int unwind_type;
4268 int elide = 0;
4269
4270 /* An EXIDX_CANTUNWIND entry. */
4271 if (second_word == 1)
4272 {
4273 if (last_unwind_type == 0)
4274 elide = 1;
4275 unwind_type = 0;
4276 }
4277 /* Inlined unwinding data. Merge if equal to previous. */
4278 else if ((second_word & 0x80000000) != 0)
4279 {
4280 if (merge_exidx_entries
4281 && last_second_word == second_word
4282 && last_unwind_type == 1)
4283 elide = 1;
4284 unwind_type = 1;
4285 last_second_word = second_word;
4286 }
4287 /* Normal table entry. In theory we could merge these too,
4288 but duplicate entries are likely to be much less common. */
4289 else
4290 unwind_type = 2;
4291
4292 if (elide)
4293 {
4294 elf32_tic6x_add_unwind_table_edit (&unwind_edit_head,
4295 &unwind_edit_tail, DELETE_EXIDX_ENTRY, NULL, j / 8);
4296
4297 deleted_exidx_bytes += 8;
4298 }
4299
4300 last_unwind_type = unwind_type;
4301 }
4302
4303 /* Free contents if we allocated it ourselves. */
4304 if (contents != hdr->contents)
4305 free (contents);
4306
4307 /* Record edits to be applied later (in elf32_tic6x_write_section). */
4308 exidx_data->u.exidx.unwind_edit_list = unwind_edit_head;
4309 exidx_data->u.exidx.unwind_edit_tail = unwind_edit_tail;
4310
4311 if (deleted_exidx_bytes > 0)
4312 elf32_tic6x_adjust_exidx_size (exidx_sec, -deleted_exidx_bytes);
4313
4314 last_exidx_sec = exidx_sec;
4315 last_text_sec = sec;
4316 }
4317
4318 /* Add terminating CANTUNWIND entry. */
4319 if (last_exidx_sec && last_unwind_type != 0)
4320 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4321
4322 return TRUE;
4323}
4324
4325/* Add ADDEND to lower 31 bits of VAL, leaving other bits unmodified. */
4326
4327static unsigned long
4328elf32_tic6x_add_low31 (unsigned long val, bfd_vma addend)
4329{
4330 return (val & ~0x7ffffffful) | ((val + addend) & 0x7ffffffful);
4331}
4332
4333/* Copy an .c6xabi.exidx table entry, adding OFFSET to (applied) PREL31
4334 relocations. OFFSET is in bytes, and will be scaled before encoding. */
4335
4336
4337static void
4338elf32_tic6x_copy_exidx_entry (bfd *output_bfd, bfd_byte *to, bfd_byte *from,
4339 bfd_vma offset)
4340{
4341 unsigned long first_word = bfd_get_32 (output_bfd, from);
4342 unsigned long second_word = bfd_get_32 (output_bfd, from + 4);
4343
4344 offset >>= 1;
4345 /* High bit of first word is supposed to be zero. */
4346 if ((first_word & 0x80000000ul) == 0)
4347 first_word = elf32_tic6x_add_low31 (first_word, offset);
4348
4349 /* If the high bit of the first word is clear, and the bit pattern is not 0x1
4350 (EXIDX_CANTUNWIND), this is an offset to an .c6xabi.extab entry. */
4351 if ((second_word != 0x1) && ((second_word & 0x80000000ul) == 0))
4352 second_word = elf32_tic6x_add_low31 (second_word, offset);
4353
4354 bfd_put_32 (output_bfd, first_word, to);
4355 bfd_put_32 (output_bfd, second_word, to + 4);
4356}
4357
4358/* Do the actual mangling of exception index tables. */
4359
4360static bfd_boolean
4361elf32_tic6x_write_section (bfd *output_bfd,
4362 struct bfd_link_info *link_info,
4363 asection *sec,
4364 bfd_byte *contents)
4365{
4366 _tic6x_elf_section_data *tic6x_data;
4367 struct elf32_tic6x_link_hash_table *globals
4368 = elf32_tic6x_hash_table (link_info);
4369 bfd_vma offset = sec->output_section->vma + sec->output_offset;
4370
4371 if (globals == NULL)
4372 return FALSE;
4373
4374 /* If this section has not been allocated an _tic6x_elf_section_data
4375 structure then we cannot record anything. */
4376 tic6x_data = get_tic6x_elf_section_data (sec);
4377 if (tic6x_data == NULL)
4378 return FALSE;
4379
4380 if (tic6x_data->elf.this_hdr.sh_type != SHT_C6000_UNWIND)
4381 return FALSE;
4382
4383 tic6x_unwind_table_edit *edit_node
4384 = tic6x_data->u.exidx.unwind_edit_list;
4385 /* Now, sec->size is the size of the section we will write. The original
4386 size (before we merged duplicate entries and inserted EXIDX_CANTUNWIND
4387 markers) was sec->rawsize. (This isn't the case if we perform no
4388 edits, then rawsize will be zero and we should use size). */
4389 bfd_byte *edited_contents = (bfd_byte *) bfd_malloc (sec->size);
4390 unsigned int input_size = sec->rawsize ? sec->rawsize : sec->size;
4391 unsigned int in_index, out_index;
4392 bfd_vma add_to_offsets = 0;
4393
4394 for (in_index = 0, out_index = 0; in_index * 8 < input_size || edit_node;)
4395 {
4396 if (edit_node)
4397 {
4398 unsigned int edit_index = edit_node->index;
4399
4400 if (in_index < edit_index && in_index * 8 < input_size)
4401 {
4402 elf32_tic6x_copy_exidx_entry (output_bfd,
4403 edited_contents + out_index * 8,
4404 contents + in_index * 8, add_to_offsets);
4405 out_index++;
4406 in_index++;
4407 }
4408 else if (in_index == edit_index
4409 || (in_index * 8 >= input_size
4410 && edit_index == UINT_MAX))
4411 {
4412 switch (edit_node->type)
4413 {
4414 case DELETE_EXIDX_ENTRY:
4415 in_index++;
4416 add_to_offsets += 8;
4417 break;
4418
4419 case INSERT_EXIDX_CANTUNWIND_AT_END:
4420 {
4421 asection *text_sec = edit_node->linked_section;
4422 bfd_vma text_offset = text_sec->output_section->vma
4423 + text_sec->output_offset
4424 + text_sec->size;
4425 bfd_vma exidx_offset = offset + out_index * 8;
4426 unsigned long prel31_offset;
4427
4428 /* Note: this is meant to be equivalent to an
4429 R_C6000_PREL31 relocation. These synthetic
4430 EXIDX_CANTUNWIND markers are not relocated by the
4431 usual BFD method. */
4432 prel31_offset = ((text_offset - exidx_offset) >> 1)
4433 & 0x7ffffffful;
4434
4435 /* First address we can't unwind. */
4436 bfd_put_32 (output_bfd, prel31_offset,
4437 &edited_contents[out_index * 8]);
4438
4439 /* Code for EXIDX_CANTUNWIND. */
4440 bfd_put_32 (output_bfd, 0x1,
4441 &edited_contents[out_index * 8 + 4]);
4442
4443 out_index++;
4444 add_to_offsets -= 8;
4445 }
4446 break;
4447 }
4448
4449 edit_node = edit_node->next;
4450 }
4451 }
4452 else
4453 {
4454 /* No more edits, copy remaining entries verbatim. */
4455 elf32_tic6x_copy_exidx_entry (output_bfd,
4456 edited_contents + out_index * 8,
4457 contents + in_index * 8, add_to_offsets);
4458 out_index++;
4459 in_index++;
4460 }
4461 }
4462
4463 if (!(sec->flags & SEC_EXCLUDE) && !(sec->flags & SEC_NEVER_LOAD))
4464 bfd_set_section_contents (output_bfd, sec->output_section,
4465 edited_contents,
4466 (file_ptr) sec->output_offset, sec->size);
4467
4468 return TRUE;
4469}
4470
2a616379
BS		 4471static void
4472elf32_tic6x_set_osabi (bfd *abfd, struct bfd_link_info *link_info)
4473{
4474 if (link_info == NULL || link_info->relocatable)
4475 return;
4476 _bfd_elf_set_osabi (abfd, link_info);
4477}
4478
40b36596
JM		 4479#define TARGET_LITTLE_SYM bfd_elf32_tic6x_le_vec
4480#define TARGET_LITTLE_NAME "elf32-tic6x-le"
4481#define TARGET_BIG_SYM bfd_elf32_tic6x_be_vec
4482#define TARGET_BIG_NAME "elf32-tic6x-be"
4483#define ELF_ARCH bfd_arch_tic6x
ae95ffa6 4484#define ELF_TARGET_ID TIC6X_ELF_DATA
40b36596 4485#define ELF_MACHINE_CODE EM_TI_C6000
ac145307 4486#define ELF_MAXPAGESIZE 0x1000
40b36596
JM		 4487#define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
4488#define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
ac145307 4489#define bfd_elf32_bfd_copy_private_bfd_data elf32_tic6x_copy_private_data
59e6276b 4490#define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
41820509 4491#define bfd_elf32_mkobject elf32_tic6x_mkobject
ac145307
BS		 4492#define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
4493#define bfd_elf32_bfd_link_hash_table_free elf32_tic6x_link_hash_table_free
41820509 4494#define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
40b36596
JM		 4495#define elf_backend_can_gc_sections 1
4496#define elf_backend_default_use_rela_p 1
4497#define elf_backend_may_use_rel_p 1
4498#define elf_backend_may_use_rela_p 1
59e6276b 4499#define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
0547accf 4500#define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
87779176 4501#define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
75fa6dc1 4502#define elf_backend_obj_attrs_section ".c6xabi.attributes"
59e6276b
JM		 4503#define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
4504#define elf_backend_obj_attrs_vendor "c6xabi"
ac145307
BS		 4505#define elf_backend_can_refcount 1
4506#define elf_backend_want_got_plt 1
4507#define elf_backend_want_dynbss 1
4508#define elf_backend_plt_readonly 1
40b36596 4509#define elf_backend_rela_normal 1
ac145307 4510#define elf_backend_got_header_size 8
1bce6bd8 4511#define elf_backend_fake_sections elf32_tic6x_fake_sections
ac145307 4512#define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook
9cf0e282 4513#define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections
ac145307
BS		 4514#define elf_backend_modify_program_headers \
4515 elf32_tic6x_modify_program_headers
4516#define elf_backend_create_dynamic_sections \
4517 elf32_tic6x_create_dynamic_sections
4518#define elf_backend_adjust_dynamic_symbol \
4519 elf32_tic6x_adjust_dynamic_symbol
4520#define elf_backend_check_relocs elf32_tic6x_check_relocs
4521#define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
4522#define elf_backend_symbol_processing elf32_tic6x_symbol_processing
4523#define elf_backend_link_output_symbol_hook \
4524 elf32_tic6x_link_output_symbol_hook
4525#define elf_backend_section_from_bfd_section \
4526 elf32_tic6x_section_from_bfd_section
40b36596 4527#define elf_backend_relocate_section elf32_tic6x_relocate_section
2a616379 4528#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
ac145307
BS		 4529#define elf_backend_finish_dynamic_symbol \
4530 elf32_tic6x_finish_dynamic_symbol
4531#define elf_backend_always_size_sections \
4532 elf32_tic6x_always_size_sections
4533#define elf_backend_size_dynamic_sections \
4534 elf32_tic6x_size_dynamic_sections
4535#define elf_backend_finish_dynamic_sections \
4536 elf32_tic6x_finish_dynamic_sections
c6a8f6e0
BS		 4537#define bfd_elf32_bfd_final_link \
4538 elf32_tic6x_final_link
fbd9ad90 4539#define elf_backend_write_section elf32_tic6x_write_section
40b36596 4540#define elf_info_to_howto elf32_tic6x_info_to_howto
41820509 4541#define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
40b36596 4542
ac145307
BS		 4543#undef elf_backend_omit_section_dynsym
4544#define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
4545#define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
4546
2a616379
BS		 4547#include "elf32-target.h"
4548
4549#undef elf32_bed
4550#define elf32_bed elf32_tic6x_linux_bed
4551
4552#undef TARGET_LITTLE_SYM
4553#define TARGET_LITTLE_SYM bfd_elf32_tic6x_linux_le_vec
4554#undef TARGET_LITTLE_NAME
4555#define TARGET_LITTLE_NAME "elf32-tic6x-linux-le"
4556#undef TARGET_BIG_SYM
4557#define TARGET_BIG_SYM bfd_elf32_tic6x_linux_be_vec
4558#undef TARGET_BIG_NAME
4559#define TARGET_BIG_NAME "elf32-tic6x-linux-be"
4560#undef ELF_OSABI
4561#define ELF_OSABI ELFOSABI_C6000_LINUX
4562
4563#undef elf_backend_post_process_headers
4564#define elf_backend_post_process_headers elf32_tic6x_set_osabi
4565
4566#include "elf32-target.h"
4567
4568#undef elf32_bed
4569#define elf32_bed elf32_tic6x_elf_bed
4570
4571#undef TARGET_LITTLE_SYM
4572#define TARGET_LITTLE_SYM bfd_elf32_tic6x_elf_le_vec
4573#undef TARGET_LITTLE_NAME
4574#define TARGET_LITTLE_NAME "elf32-tic6x-elf-le"
4575#undef TARGET_BIG_SYM
4576#define TARGET_BIG_SYM bfd_elf32_tic6x_elf_be_vec
4577#undef TARGET_BIG_NAME
4578#define TARGET_BIG_NAME "elf32-tic6x-elf-be"
4579#undef ELF_OSABI
4580#define ELF_OSABI ELFOSABI_C6000_ELFABI
4581
4582#undef elf_backend_post_process_headers
4583#define elf_backend_post_process_headers elf32_tic6x_set_osabi
ac145307 4584
40b36596 4585#include "elf32-target.h"
GDB Binutils - Deliverables
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