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Update year range in copyright notice of binutils files
[deliverable/binutils-gdb.git] / bfd / elf64-sh64.c
1 /* SuperH SH64-specific support for 64-bit ELF
2 Copyright (C) 2000-2018 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #define SH64_ELF64
22
23 #include "sysdep.h"
24 #include "bfd.h"
25 #include "bfdlink.h"
26 #include "libbfd.h"
27 #include "elf-bfd.h"
28 #include "elf/sh.h"
29
30 /* Add a suffix for datalabel indirection symbols. It must not match any
31 other symbols; user symbols with or without version or other
32 decoration. It must only be used internally and not emitted by any
33 means. */
34 #define DATALABEL_SUFFIX " DL"
35
36 #define GOT_BIAS (-((long)-32768))
37
38 #define PLT_ENTRY_SIZE 64
39
40 /* Return size of a PLT entry. */
41 #define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE
42
43 /* Return offset of the PLT0 address in an absolute PLT entry. */
44 #define elf_sh64_plt_plt0_offset(info) 32
45
46 /* Return offset of the linker in PLT0 entry. */
47 #define elf_sh64_plt0_gotplt_offset(info) 0
48
49 /* Return offset of the trampoline in PLT entry */
50 #define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
51
52 /* Return offset of the symbol in PLT entry. */
53 #define elf_sh64_plt_symbol_offset(info) 0
54
55 /* Return offset of the relocation in PLT entry. */
56 #define elf_sh64_plt_reloc_offset(info) (bfd_link_pic (info) ? 52 : 44)
57
58 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
59
60 /* The sh linker needs to keep track of the number of relocs that it
61 decides to copy in check_relocs for each symbol. This is so that
62 it can discard PC relative relocs if it doesn't need them when
63 linking with -Bsymbolic. We store the information in a field
64 extending the regular ELF linker hash table. */
65
66 /* This structure keeps track of the number of PC relative relocs we
67 have copied for a given symbol. */
68
69 struct elf_sh64_pcrel_relocs_copied
70 {
71 /* Next section. */
72 struct elf_sh64_pcrel_relocs_copied *next;
73 /* A section in dynobj. */
74 asection *section;
75 /* Number of relocs copied in this section. */
76 bfd_size_type count;
77 };
78
79 /* sh ELF linker hash entry. */
80
81 struct elf_sh64_link_hash_entry
82 {
83 struct elf_link_hash_entry root;
84
85 bfd_vma datalabel_got_offset;
86
87 /* Number of PC relative relocs copied for this symbol. */
88 struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied;
89 };
90
91 /* Traverse an sh ELF linker hash table. */
92
93 #define sh64_elf64_link_hash_traverse(table, func, info) \
94 (elf_link_hash_traverse \
95 ((table), \
96 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
97 (info)))
98
99 static bfd_reloc_status_type sh_elf64_ignore_reloc
100 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
101 static bfd_reloc_status_type sh_elf64_reloc
102 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
103
104 static reloc_howto_type sh_elf64_howto_table[] = {
105 /* No relocation. */
106 HOWTO (R_SH_NONE, /* type */
107 0, /* rightshift */
108 3, /* size (0 = byte, 1 = short, 2 = long) */
109 0, /* bitsize */
110 FALSE, /* pc_relative */
111 0, /* bitpos */
112 complain_overflow_dont, /* complain_on_overflow */
113 sh_elf64_ignore_reloc, /* special_function */
114 "R_SH_NONE", /* name */
115 FALSE, /* partial_inplace */
116 0, /* src_mask */
117 0, /* dst_mask */
118 FALSE), /* pcrel_offset */
119
120 /* 32 bit absolute relocation. Setting partial_inplace to TRUE and
121 src_mask to a non-zero value is similar to the COFF toolchain. */
122 HOWTO (R_SH_DIR32, /* type */
123 0, /* rightshift */
124 2, /* size (0 = byte, 1 = short, 2 = long) */
125 32, /* bitsize */
126 FALSE, /* pc_relative */
127 0, /* bitpos */
128 complain_overflow_bitfield, /* complain_on_overflow */
129 sh_elf64_reloc, /* special_function */
130 "R_SH_DIR32", /* name */
131 TRUE, /* partial_inplace */
132 0xffffffff, /* src_mask */
133 0xffffffff, /* dst_mask */
134 FALSE), /* pcrel_offset */
135
136 /* 32 bit PC relative relocation. */
137 HOWTO (R_SH_REL32, /* type */
138 0, /* rightshift */
139 2, /* size (0 = byte, 1 = short, 2 = long) */
140 32, /* bitsize */
141 TRUE, /* pc_relative */
142 0, /* bitpos */
143 complain_overflow_signed, /* complain_on_overflow */
144 sh_elf64_ignore_reloc, /* special_function */
145 "R_SH_REL32", /* name */
146 FALSE, /* partial_inplace */
147 0, /* src_mask */
148 0xffffffff, /* dst_mask */
149 TRUE), /* pcrel_offset */
150
151 /* For 32-bit sh, this is R_SH_DIR8WPN. */
152 EMPTY_HOWTO (3),
153
154 /* For 32-bit sh, this is R_SH_IND12W. */
155 EMPTY_HOWTO (4),
156
157 /* For 32-bit sh, this is R_SH_DIR8WPL. */
158 EMPTY_HOWTO (5),
159
160 /* For 32-bit sh, this is R_SH_DIR8WPZ. */
161 EMPTY_HOWTO (6),
162
163 /* For 32-bit sh, this is R_SH_DIR8BP. */
164 EMPTY_HOWTO (7),
165
166 /* For 32-bit sh, this is R_SH_DIR8W. */
167 EMPTY_HOWTO (8),
168
169 /* For 32-bit sh, this is R_SH_DIR8L. */
170 EMPTY_HOWTO (9),
171
172 EMPTY_HOWTO (10),
173 EMPTY_HOWTO (11),
174 EMPTY_HOWTO (12),
175 EMPTY_HOWTO (13),
176 EMPTY_HOWTO (14),
177 EMPTY_HOWTO (15),
178 EMPTY_HOWTO (16),
179 EMPTY_HOWTO (17),
180 EMPTY_HOWTO (18),
181 EMPTY_HOWTO (19),
182 EMPTY_HOWTO (20),
183 EMPTY_HOWTO (21),
184 EMPTY_HOWTO (22),
185 EMPTY_HOWTO (23),
186 EMPTY_HOWTO (24),
187
188 /* The remaining relocs are a GNU extension used for relaxing. The
189 final pass of the linker never needs to do anything with any of
190 these relocs. Any required operations are handled by the
191 relaxation code. */
192
193 /* A 16 bit switch table entry. This is generated for an expression
194 such as ``.word L1 - L2''. The offset holds the difference
195 between the reloc address and L2. */
196 HOWTO (R_SH_SWITCH16, /* type */
197 0, /* rightshift */
198 1, /* size (0 = byte, 1 = short, 2 = long) */
199 16, /* bitsize */
200 FALSE, /* pc_relative */
201 0, /* bitpos */
202 complain_overflow_unsigned, /* complain_on_overflow */
203 sh_elf64_ignore_reloc, /* special_function */
204 "R_SH_SWITCH16", /* name */
205 FALSE, /* partial_inplace */
206 0, /* src_mask */
207 0, /* dst_mask */
208 TRUE), /* pcrel_offset */
209
210 /* A 32 bit switch table entry. This is generated for an expression
211 such as ``.long L1 - L2''. The offset holds the difference
212 between the reloc address and L2. */
213 HOWTO (R_SH_SWITCH32, /* type */
214 0, /* rightshift */
215 2, /* size (0 = byte, 1 = short, 2 = long) */
216 32, /* bitsize */
217 FALSE, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_unsigned, /* complain_on_overflow */
220 sh_elf64_ignore_reloc, /* special_function */
221 "R_SH_SWITCH32", /* name */
222 FALSE, /* partial_inplace */
223 0, /* src_mask */
224 0, /* dst_mask */
225 TRUE), /* pcrel_offset */
226
227 /* For 32-bit sh, this is R_SH_USES. */
228 EMPTY_HOWTO (27),
229
230 /* For 32-bit sh, this is R_SH_COUNT. */
231 EMPTY_HOWTO (28),
232
233 /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation,
234 this might be emitted. When linker relaxation is implemented, we
235 might want to use it. */
236 EMPTY_HOWTO (29),
237
238 /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation,
239 this might be emitted. When linker relaxation is implemented, we
240 might want to use it. */
241 EMPTY_HOWTO (30),
242
243 /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation,
244 this might be emitted. When linker relaxation is implemented, we
245 might want to use it. */
246 EMPTY_HOWTO (31),
247
248 /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation,
249 this might be emitted. When linker relaxation is implemented, we
250 might want to use it. */
251 EMPTY_HOWTO (32),
252
253 /* An 8 bit switch table entry. This is generated for an expression
254 such as ``.word L1 - L2''. The offset holds the difference
255 between the reloc address and L2. */
256 HOWTO (R_SH_SWITCH8, /* type */
257 0, /* rightshift */
258 0, /* size (0 = byte, 1 = short, 2 = long) */
259 8, /* bitsize */
260 FALSE, /* pc_relative */
261 0, /* bitpos */
262 complain_overflow_unsigned, /* complain_on_overflow */
263 sh_elf64_ignore_reloc, /* special_function */
264 "R_SH_SWITCH8", /* name */
265 FALSE, /* partial_inplace */
266 0, /* src_mask */
267 0, /* dst_mask */
268 TRUE), /* pcrel_offset */
269
270 /* GNU extension to record C++ vtable hierarchy */
271 HOWTO (R_SH_GNU_VTINHERIT, /* type */
272 0, /* rightshift */
273 2, /* size (0 = byte, 1 = short, 2 = long) */
274 0, /* bitsize */
275 FALSE, /* pc_relative */
276 0, /* bitpos */
277 complain_overflow_dont, /* complain_on_overflow */
278 NULL, /* special_function */
279 "R_SH_GNU_VTINHERIT", /* name */
280 FALSE, /* partial_inplace */
281 0, /* src_mask */
282 0, /* dst_mask */
283 FALSE), /* pcrel_offset */
284
285 /* GNU extension to record C++ vtable member usage */
286 HOWTO (R_SH_GNU_VTENTRY, /* type */
287 0, /* rightshift */
288 2, /* size (0 = byte, 1 = short, 2 = long) */
289 0, /* bitsize */
290 FALSE, /* pc_relative */
291 0, /* bitpos */
292 complain_overflow_dont, /* complain_on_overflow */
293 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
294 "R_SH_GNU_VTENTRY", /* name */
295 FALSE, /* partial_inplace */
296 0, /* src_mask */
297 0, /* dst_mask */
298 FALSE), /* pcrel_offset */
299
300 /* For 32-bit sh, this is R_SH_LOOP_START. */
301 EMPTY_HOWTO (36),
302
303 /* For 32-bit sh, this is R_SH_LOOP_END. */
304 EMPTY_HOWTO (37),
305
306 EMPTY_HOWTO (38),
307 EMPTY_HOWTO (39),
308 EMPTY_HOWTO (40),
309 EMPTY_HOWTO (41),
310 EMPTY_HOWTO (42),
311 EMPTY_HOWTO (43),
312 EMPTY_HOWTO (44),
313
314 /* Used in SHLLI.L and SHLRI.L. */
315 HOWTO (R_SH_DIR5U, /* type */
316 0, /* rightshift */
317 2, /* size (0 = byte, 1 = short, 2 = long) */
318 5, /* bitsize */
319 FALSE, /* pc_relative */
320 10, /* bitpos */
321 complain_overflow_unsigned, /* complain_on_overflow */
322 bfd_elf_generic_reloc, /* special_function */
323 "R_SH_DIR5U", /* name */
324 FALSE, /* partial_inplace */
325 0, /* src_mask */
326 0xfc00, /* dst_mask */
327 FALSE), /* pcrel_offset */
328
329 /* Used in SHARI, SHLLI et al. */
330 HOWTO (R_SH_DIR6U, /* type */
331 0, /* rightshift */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
333 6, /* bitsize */
334 FALSE, /* pc_relative */
335 10, /* bitpos */
336 complain_overflow_unsigned, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_SH_DIR6U", /* name */
339 FALSE, /* partial_inplace */
340 0, /* src_mask */
341 0xfc00, /* dst_mask */
342 FALSE), /* pcrel_offset */
343
344 /* Used in BxxI, LDHI.L et al. */
345 HOWTO (R_SH_DIR6S, /* type */
346 0, /* rightshift */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
348 6, /* bitsize */
349 FALSE, /* pc_relative */
350 10, /* bitpos */
351 complain_overflow_signed, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_SH_DIR6S", /* name */
354 FALSE, /* partial_inplace */
355 0, /* src_mask */
356 0xfc00, /* dst_mask */
357 FALSE), /* pcrel_offset */
358
359 /* Used in ADDI, ANDI et al. */
360 HOWTO (R_SH_DIR10S, /* type */
361 0, /* rightshift */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
363 10, /* bitsize */
364 FALSE, /* pc_relative */
365 10, /* bitpos */
366 complain_overflow_signed, /* complain_on_overflow */
367 bfd_elf_generic_reloc, /* special_function */
368 "R_SH_DIR10S", /* name */
369 FALSE, /* partial_inplace */
370 0, /* src_mask */
371 0xffc00, /* dst_mask */
372 FALSE), /* pcrel_offset */
373
374 /* Used in LD.UW, ST.W et al. */
375 HOWTO (R_SH_DIR10SW, /* type */
376 1, /* rightshift */
377 2, /* size (0 = byte, 1 = short, 2 = long) */
378 11, /* bitsize */
379 FALSE, /* pc_relative */
380 10, /* bitpos */
381 complain_overflow_signed, /* complain_on_overflow */
382 bfd_elf_generic_reloc, /* special_function */
383 "R_SH_DIR10SW", /* name */
384 FALSE, /* partial_inplace */
385 0, /* src_mask */
386 0xffc00, /* dst_mask */
387 FALSE), /* pcrel_offset */
388
389 /* Used in LD.L, FLD.S et al. */
390 HOWTO (R_SH_DIR10SL, /* type */
391 2, /* rightshift */
392 2, /* size (0 = byte, 1 = short, 2 = long) */
393 12, /* bitsize */
394 FALSE, /* pc_relative */
395 10, /* bitpos */
396 complain_overflow_signed, /* complain_on_overflow */
397 bfd_elf_generic_reloc, /* special_function */
398 "R_SH_DIR10SL", /* name */
399 FALSE, /* partial_inplace */
400 0, /* src_mask */
401 0xffc00, /* dst_mask */
402 FALSE), /* pcrel_offset */
403
404 /* Used in FLD.D, FST.P et al. */
405 HOWTO (R_SH_DIR10SQ, /* type */
406 3, /* rightshift */
407 2, /* size (0 = byte, 1 = short, 2 = long) */
408 13, /* bitsize */
409 FALSE, /* pc_relative */
410 10, /* bitpos */
411 complain_overflow_signed, /* complain_on_overflow */
412 bfd_elf_generic_reloc, /* special_function */
413 "R_SH_DIR10SQ", /* name */
414 FALSE, /* partial_inplace */
415 0, /* src_mask */
416 0xffc00, /* dst_mask */
417 FALSE), /* pcrel_offset */
418
419 EMPTY_HOWTO (52),
420 EMPTY_HOWTO (53),
421 EMPTY_HOWTO (54),
422 EMPTY_HOWTO (55),
423 EMPTY_HOWTO (56),
424 EMPTY_HOWTO (57),
425 EMPTY_HOWTO (58),
426 EMPTY_HOWTO (59),
427 EMPTY_HOWTO (60),
428 EMPTY_HOWTO (61),
429 EMPTY_HOWTO (62),
430 EMPTY_HOWTO (63),
431 EMPTY_HOWTO (64),
432 EMPTY_HOWTO (65),
433 EMPTY_HOWTO (66),
434 EMPTY_HOWTO (67),
435 EMPTY_HOWTO (68),
436 EMPTY_HOWTO (69),
437 EMPTY_HOWTO (70),
438 EMPTY_HOWTO (71),
439 EMPTY_HOWTO (72),
440 EMPTY_HOWTO (73),
441 EMPTY_HOWTO (74),
442 EMPTY_HOWTO (75),
443 EMPTY_HOWTO (76),
444 EMPTY_HOWTO (77),
445 EMPTY_HOWTO (78),
446 EMPTY_HOWTO (79),
447 EMPTY_HOWTO (80),
448 EMPTY_HOWTO (81),
449 EMPTY_HOWTO (82),
450 EMPTY_HOWTO (83),
451 EMPTY_HOWTO (84),
452 EMPTY_HOWTO (85),
453 EMPTY_HOWTO (86),
454 EMPTY_HOWTO (87),
455 EMPTY_HOWTO (88),
456 EMPTY_HOWTO (89),
457 EMPTY_HOWTO (90),
458 EMPTY_HOWTO (91),
459 EMPTY_HOWTO (92),
460 EMPTY_HOWTO (93),
461 EMPTY_HOWTO (94),
462 EMPTY_HOWTO (95),
463 EMPTY_HOWTO (96),
464 EMPTY_HOWTO (97),
465 EMPTY_HOWTO (98),
466 EMPTY_HOWTO (99),
467 EMPTY_HOWTO (100),
468 EMPTY_HOWTO (101),
469 EMPTY_HOWTO (102),
470 EMPTY_HOWTO (103),
471 EMPTY_HOWTO (104),
472 EMPTY_HOWTO (105),
473 EMPTY_HOWTO (106),
474 EMPTY_HOWTO (107),
475 EMPTY_HOWTO (108),
476 EMPTY_HOWTO (109),
477 EMPTY_HOWTO (110),
478 EMPTY_HOWTO (111),
479 EMPTY_HOWTO (112),
480 EMPTY_HOWTO (113),
481 EMPTY_HOWTO (114),
482 EMPTY_HOWTO (115),
483 EMPTY_HOWTO (116),
484 EMPTY_HOWTO (117),
485 EMPTY_HOWTO (118),
486 EMPTY_HOWTO (119),
487 EMPTY_HOWTO (120),
488 EMPTY_HOWTO (121),
489 EMPTY_HOWTO (122),
490 EMPTY_HOWTO (123),
491 EMPTY_HOWTO (124),
492 EMPTY_HOWTO (125),
493 EMPTY_HOWTO (126),
494 EMPTY_HOWTO (127),
495 EMPTY_HOWTO (128),
496 EMPTY_HOWTO (129),
497 EMPTY_HOWTO (130),
498 EMPTY_HOWTO (131),
499 EMPTY_HOWTO (132),
500 EMPTY_HOWTO (133),
501 EMPTY_HOWTO (134),
502 EMPTY_HOWTO (135),
503 EMPTY_HOWTO (136),
504 EMPTY_HOWTO (137),
505 EMPTY_HOWTO (138),
506 EMPTY_HOWTO (139),
507 EMPTY_HOWTO (140),
508 EMPTY_HOWTO (141),
509 EMPTY_HOWTO (142),
510 EMPTY_HOWTO (143),
511 EMPTY_HOWTO (144),
512 EMPTY_HOWTO (145),
513 EMPTY_HOWTO (146),
514 EMPTY_HOWTO (147),
515 EMPTY_HOWTO (148),
516 EMPTY_HOWTO (149),
517 EMPTY_HOWTO (150),
518 EMPTY_HOWTO (151),
519 EMPTY_HOWTO (152),
520 EMPTY_HOWTO (153),
521 EMPTY_HOWTO (154),
522 EMPTY_HOWTO (155),
523 EMPTY_HOWTO (156),
524 EMPTY_HOWTO (157),
525 EMPTY_HOWTO (158),
526 EMPTY_HOWTO (159),
527
528 /* Relocs for dynamic linking for 32-bit SH would follow. We don't have
529 any dynamic linking support for 64-bit SH at present. */
530
531 EMPTY_HOWTO (160),
532 EMPTY_HOWTO (161),
533 EMPTY_HOWTO (162),
534 EMPTY_HOWTO (163),
535 EMPTY_HOWTO (164),
536 EMPTY_HOWTO (165),
537 EMPTY_HOWTO (166),
538 EMPTY_HOWTO (167),
539 EMPTY_HOWTO (168),
540
541 /* Back to SH5 relocations. */
542 /* Used in MOVI and SHORI (x & 65536). */
543 HOWTO (R_SH_GOT_LOW16, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 64, /* bitsize */
547 FALSE, /* pc_relative */
548 10, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 bfd_elf_generic_reloc, /* special_function */
551 "R_SH_GOT_LOW16", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0x3fffc00, /* dst_mask */
555 FALSE), /* pcrel_offset */
556
557 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
558 HOWTO (R_SH_GOT_MEDLOW16, /* type */
559 16, /* rightshift */
560 2, /* size (0 = byte, 1 = short, 2 = long) */
561 64, /* bitsize */
562 FALSE, /* pc_relative */
563 10, /* bitpos */
564 complain_overflow_dont, /* complain_on_overflow */
565 bfd_elf_generic_reloc, /* special_function */
566 "R_SH_GOT_MEDLOW16", /* name */
567 FALSE, /* partial_inplace */
568 0, /* src_mask */
569 0x3fffc00, /* dst_mask */
570 FALSE), /* pcrel_offset */
571
572 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
573 HOWTO (R_SH_GOT_MEDHI16, /* type */
574 32, /* rightshift */
575 2, /* size (0 = byte, 1 = short, 2 = long) */
576 64, /* bitsize */
577 FALSE, /* pc_relative */
578 10, /* bitpos */
579 complain_overflow_dont, /* complain_on_overflow */
580 bfd_elf_generic_reloc, /* special_function */
581 "R_SH_GOT_MEDHI16", /* name */
582 FALSE, /* partial_inplace */
583 0, /* src_mask */
584 0x3fffc00, /* dst_mask */
585 FALSE), /* pcrel_offset */
586
587 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
588 HOWTO (R_SH_GOT_HI16, /* type */
589 48, /* rightshift */
590 2, /* size (0 = byte, 1 = short, 2 = long) */
591 64, /* bitsize */
592 FALSE, /* pc_relative */
593 10, /* bitpos */
594 complain_overflow_dont, /* complain_on_overflow */
595 bfd_elf_generic_reloc, /* special_function */
596 "R_SH_GOT_HI16", /* name */
597 FALSE, /* partial_inplace */
598 0, /* src_mask */
599 0x3fffc00, /* dst_mask */
600 FALSE), /* pcrel_offset */
601
602 /* Used in MOVI and SHORI (x & 65536). */
603 HOWTO (R_SH_GOTPLT_LOW16, /* type */
604 0, /* rightshift */
605 2, /* size (0 = byte, 1 = short, 2 = long) */
606 64, /* bitsize */
607 FALSE, /* pc_relative */
608 10, /* bitpos */
609 complain_overflow_dont, /* complain_on_overflow */
610 bfd_elf_generic_reloc, /* special_function */
611 "R_SH_GOTPLT_LOW16", /* name */
612 FALSE, /* partial_inplace */
613 0, /* src_mask */
614 0x3fffc00, /* dst_mask */
615 FALSE), /* pcrel_offset */
616
617 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
618 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */
619 16, /* rightshift */
620 2, /* size (0 = byte, 1 = short, 2 = long) */
621 64, /* bitsize */
622 FALSE, /* pc_relative */
623 10, /* bitpos */
624 complain_overflow_dont, /* complain_on_overflow */
625 bfd_elf_generic_reloc, /* special_function */
626 "R_SH_GOTPLT_MEDLOW16", /* name */
627 FALSE, /* partial_inplace */
628 0, /* src_mask */
629 0x3fffc00, /* dst_mask */
630 FALSE), /* pcrel_offset */
631
632 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
633 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */
634 32, /* rightshift */
635 2, /* size (0 = byte, 1 = short, 2 = long) */
636 64, /* bitsize */
637 FALSE, /* pc_relative */
638 10, /* bitpos */
639 complain_overflow_dont, /* complain_on_overflow */
640 bfd_elf_generic_reloc, /* special_function */
641 "R_SH_GOTPLT_MEDHI16", /* name */
642 FALSE, /* partial_inplace */
643 0, /* src_mask */
644 0x3fffc00, /* dst_mask */
645 FALSE), /* pcrel_offset */
646
647 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
648 HOWTO (R_SH_GOTPLT_HI16, /* type */
649 48, /* rightshift */
650 2, /* size (0 = byte, 1 = short, 2 = long) */
651 64, /* bitsize */
652 FALSE, /* pc_relative */
653 10, /* bitpos */
654 complain_overflow_dont, /* complain_on_overflow */
655 bfd_elf_generic_reloc, /* special_function */
656 "R_SH_GOTPLT_HI16", /* name */
657 FALSE, /* partial_inplace */
658 0, /* src_mask */
659 0x3fffc00, /* dst_mask */
660 FALSE), /* pcrel_offset */
661
662 /* Used in MOVI and SHORI (x & 65536). */
663 HOWTO (R_SH_PLT_LOW16, /* type */
664 0, /* rightshift */
665 2, /* size (0 = byte, 1 = short, 2 = long) */
666 64, /* bitsize */
667 TRUE, /* pc_relative */
668 10, /* bitpos */
669 complain_overflow_dont, /* complain_on_overflow */
670 bfd_elf_generic_reloc, /* special_function */
671 "R_SH_PLT_LOW16", /* name */
672 FALSE, /* partial_inplace */
673 0, /* src_mask */
674 0x3fffc00, /* dst_mask */
675 TRUE), /* pcrel_offset */
676
677 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
678 HOWTO (R_SH_PLT_MEDLOW16, /* type */
679 16, /* rightshift */
680 2, /* size (0 = byte, 1 = short, 2 = long) */
681 64, /* bitsize */
682 TRUE, /* pc_relative */
683 10, /* bitpos */
684 complain_overflow_dont, /* complain_on_overflow */
685 bfd_elf_generic_reloc, /* special_function */
686 "R_SH_PLT_MEDLOW16", /* name */
687 FALSE, /* partial_inplace */
688 0, /* src_mask */
689 0x3fffc00, /* dst_mask */
690 TRUE), /* pcrel_offset */
691
692 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
693 HOWTO (R_SH_PLT_MEDHI16, /* type */
694 32, /* rightshift */
695 2, /* size (0 = byte, 1 = short, 2 = long) */
696 64, /* bitsize */
697 TRUE, /* pc_relative */
698 10, /* bitpos */
699 complain_overflow_dont, /* complain_on_overflow */
700 bfd_elf_generic_reloc, /* special_function */
701 "R_SH_PLT_MEDHI16", /* name */
702 FALSE, /* partial_inplace */
703 0, /* src_mask */
704 0x3fffc00, /* dst_mask */
705 TRUE), /* pcrel_offset */
706
707 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
708 HOWTO (R_SH_PLT_HI16, /* type */
709 48, /* rightshift */
710 2, /* size (0 = byte, 1 = short, 2 = long) */
711 64, /* bitsize */
712 TRUE, /* pc_relative */
713 10, /* bitpos */
714 complain_overflow_dont, /* complain_on_overflow */
715 bfd_elf_generic_reloc, /* special_function */
716 "R_SH_PLT_HI16", /* name */
717 FALSE, /* partial_inplace */
718 0, /* src_mask */
719 0x3fffc00, /* dst_mask */
720 TRUE), /* pcrel_offset */
721
722 /* Used in MOVI and SHORI (x & 65536). */
723 HOWTO (R_SH_GOTOFF_LOW16, /* type */
724 0, /* rightshift */
725 2, /* size (0 = byte, 1 = short, 2 = long) */
726 64, /* bitsize */
727 FALSE, /* pc_relative */
728 10, /* bitpos */
729 complain_overflow_dont, /* complain_on_overflow */
730 bfd_elf_generic_reloc, /* special_function */
731 "R_SH_GOTOFF_LOW16", /* name */
732 FALSE, /* partial_inplace */
733 0, /* src_mask */
734 0x3fffc00, /* dst_mask */
735 FALSE), /* pcrel_offset */
736
737 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
738 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */
739 16, /* rightshift */
740 2, /* size (0 = byte, 1 = short, 2 = long) */
741 64, /* bitsize */
742 FALSE, /* pc_relative */
743 10, /* bitpos */
744 complain_overflow_dont, /* complain_on_overflow */
745 bfd_elf_generic_reloc, /* special_function */
746 "R_SH_GOTOFF_MEDLOW16", /* name */
747 FALSE, /* partial_inplace */
748 0, /* src_mask */
749 0x3fffc00, /* dst_mask */
750 FALSE), /* pcrel_offset */
751
752 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
753 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */
754 32, /* rightshift */
755 2, /* size (0 = byte, 1 = short, 2 = long) */
756 64, /* bitsize */
757 FALSE, /* pc_relative */
758 10, /* bitpos */
759 complain_overflow_dont, /* complain_on_overflow */
760 bfd_elf_generic_reloc, /* special_function */
761 "R_SH_GOTOFF_MEDHI16", /* name */
762 FALSE, /* partial_inplace */
763 0, /* src_mask */
764 0x3fffc00, /* dst_mask */
765 FALSE), /* pcrel_offset */
766
767 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
768 HOWTO (R_SH_GOTOFF_HI16, /* type */
769 48, /* rightshift */
770 2, /* size (0 = byte, 1 = short, 2 = long) */
771 64, /* bitsize */
772 FALSE, /* pc_relative */
773 10, /* bitpos */
774 complain_overflow_dont, /* complain_on_overflow */
775 bfd_elf_generic_reloc, /* special_function */
776 "R_SH_GOTOFF_HI16", /* name */
777 FALSE, /* partial_inplace */
778 0, /* src_mask */
779 0x3fffc00, /* dst_mask */
780 FALSE), /* pcrel_offset */
781
782 /* Used in MOVI and SHORI (x & 65536). */
783 HOWTO (R_SH_GOTPC_LOW16, /* type */
784 0, /* rightshift */
785 2, /* size (0 = byte, 1 = short, 2 = long) */
786 64, /* bitsize */
787 TRUE, /* pc_relative */
788 10, /* bitpos */
789 complain_overflow_dont, /* complain_on_overflow */
790 bfd_elf_generic_reloc, /* special_function */
791 "R_SH_GOTPC_LOW16", /* name */
792 FALSE, /* partial_inplace */
793 0, /* src_mask */
794 0x3fffc00, /* dst_mask */
795 TRUE), /* pcrel_offset */
796
797 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
798 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */
799 16, /* rightshift */
800 2, /* size (0 = byte, 1 = short, 2 = long) */
801 64, /* bitsize */
802 TRUE, /* pc_relative */
803 10, /* bitpos */
804 complain_overflow_dont, /* complain_on_overflow */
805 bfd_elf_generic_reloc, /* special_function */
806 "R_SH_GOTPC_MEDLOW16", /* name */
807 FALSE, /* partial_inplace */
808 0, /* src_mask */
809 0x3fffc00, /* dst_mask */
810 TRUE), /* pcrel_offset */
811
812 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
813 HOWTO (R_SH_GOTPC_MEDHI16, /* type */
814 32, /* rightshift */
815 2, /* size (0 = byte, 1 = short, 2 = long) */
816 64, /* bitsize */
817 TRUE, /* pc_relative */
818 10, /* bitpos */
819 complain_overflow_dont, /* complain_on_overflow */
820 bfd_elf_generic_reloc, /* special_function */
821 "R_SH_GOTPC_MEDHI16", /* name */
822 FALSE, /* partial_inplace */
823 0, /* src_mask */
824 0x3fffc00, /* dst_mask */
825 TRUE), /* pcrel_offset */
826
827 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
828 HOWTO (R_SH_GOTPC_HI16, /* type */
829 48, /* rightshift */
830 2, /* size (0 = byte, 1 = short, 2 = long) */
831 64, /* bitsize */
832 TRUE, /* pc_relative */
833 10, /* bitpos */
834 complain_overflow_dont, /* complain_on_overflow */
835 bfd_elf_generic_reloc, /* special_function */
836 "R_SH_GOTPC_HI16", /* name */
837 FALSE, /* partial_inplace */
838 0, /* src_mask */
839 0x3fffc00, /* dst_mask */
840 TRUE), /* pcrel_offset */
841
842 /* Used in LD.L, FLD.S et al. */
843 HOWTO (R_SH_GOT10BY4, /* type */
844 2, /* rightshift */
845 2, /* size (0 = byte, 1 = short, 2 = long) */
846 12, /* bitsize */
847 FALSE, /* pc_relative */
848 10, /* bitpos */
849 complain_overflow_signed, /* complain_on_overflow */
850 bfd_elf_generic_reloc, /* special_function */
851 "R_SH_GOT10BY4", /* name */
852 FALSE, /* partial_inplace */
853 0, /* src_mask */
854 0xffc00, /* dst_mask */
855 FALSE), /* pcrel_offset */
856
857 /* Used in LD.L, FLD.S et al. */
858 HOWTO (R_SH_GOTPLT10BY4, /* type */
859 2, /* rightshift */
860 2, /* size (0 = byte, 1 = short, 2 = long) */
861 12, /* bitsize */
862 FALSE, /* pc_relative */
863 10, /* bitpos */
864 complain_overflow_signed, /* complain_on_overflow */
865 bfd_elf_generic_reloc, /* special_function */
866 "R_SH_GOTPLT10BY4", /* name */
867 FALSE, /* partial_inplace */
868 0, /* src_mask */
869 0xffc00, /* dst_mask */
870 FALSE), /* pcrel_offset */
871
872 /* Used in FLD.D, FST.P et al. */
873 HOWTO (R_SH_GOT10BY8, /* type */
874 3, /* rightshift */
875 2, /* size (0 = byte, 1 = short, 2 = long) */
876 13, /* bitsize */
877 FALSE, /* pc_relative */
878 10, /* bitpos */
879 complain_overflow_signed, /* complain_on_overflow */
880 bfd_elf_generic_reloc, /* special_function */
881 "R_SH_GOT10BY8", /* name */
882 FALSE, /* partial_inplace */
883 0, /* src_mask */
884 0xffc00, /* dst_mask */
885 FALSE), /* pcrel_offset */
886
887 /* Used in FLD.D, FST.P et al. */
888 HOWTO (R_SH_GOTPLT10BY8, /* type */
889 3, /* rightshift */
890 2, /* size (0 = byte, 1 = short, 2 = long) */
891 13, /* bitsize */
892 FALSE, /* pc_relative */
893 10, /* bitpos */
894 complain_overflow_signed, /* complain_on_overflow */
895 bfd_elf_generic_reloc, /* special_function */
896 "R_SH_GOTPLT10BY8", /* name */
897 FALSE, /* partial_inplace */
898 0, /* src_mask */
899 0xffc00, /* dst_mask */
900 FALSE), /* pcrel_offset */
901
902 HOWTO (R_SH_COPY64, /* type */
903 0, /* rightshift */
904 4, /* size (0 = byte, 1 = short, 2 = long) */
905 64, /* bitsize */
906 FALSE, /* pc_relative */
907 0, /* bitpos */
908 complain_overflow_dont, /* complain_on_overflow */
909 bfd_elf_generic_reloc, /* special_function */
910 "R_SH_COPY64", /* name */
911 FALSE, /* partial_inplace */
912 0, /* src_mask */
913 ((bfd_vma) 0) - 1, /* dst_mask */
914 FALSE), /* pcrel_offset */
915
916 HOWTO (R_SH_GLOB_DAT64, /* type */
917 0, /* rightshift */
918 4, /* size (0 = byte, 1 = short, 2 = long) */
919 64, /* bitsize */
920 FALSE, /* pc_relative */
921 0, /* bitpos */
922 complain_overflow_dont, /* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_SH_GLOB_DAT64", /* name */
925 FALSE, /* partial_inplace */
926 0, /* src_mask */
927 ((bfd_vma) 0) - 1, /* dst_mask */
928 FALSE), /* pcrel_offset */
929
930 HOWTO (R_SH_JMP_SLOT64, /* type */
931 0, /* rightshift */
932 4, /* size (0 = byte, 1 = short, 2 = long) */
933 64, /* bitsize */
934 FALSE, /* pc_relative */
935 0, /* bitpos */
936 complain_overflow_dont, /* complain_on_overflow */
937 bfd_elf_generic_reloc, /* special_function */
938 "R_SH_JMP_SLOT64", /* name */
939 FALSE, /* partial_inplace */
940 0, /* src_mask */
941 ((bfd_vma) 0) - 1, /* dst_mask */
942 FALSE), /* pcrel_offset */
943
944 HOWTO (R_SH_RELATIVE64, /* type */
945 0, /* rightshift */
946 4, /* size (0 = byte, 1 = short, 2 = long) */
947 64, /* bitsize */
948 FALSE, /* pc_relative */
949 0, /* bitpos */
950 complain_overflow_dont, /* complain_on_overflow */
951 bfd_elf_generic_reloc, /* special_function */
952 "R_SH_RELATIVE64", /* name */
953 FALSE, /* partial_inplace */
954 0, /* src_mask */
955 ((bfd_vma) 0) - 1, /* dst_mask */
956 FALSE), /* pcrel_offset */
957
958 EMPTY_HOWTO (197),
959 EMPTY_HOWTO (198),
960 EMPTY_HOWTO (199),
961 EMPTY_HOWTO (200),
962 EMPTY_HOWTO (201),
963 EMPTY_HOWTO (202),
964 EMPTY_HOWTO (203),
965 EMPTY_HOWTO (204),
966 EMPTY_HOWTO (205),
967 EMPTY_HOWTO (206),
968 EMPTY_HOWTO (207),
969 EMPTY_HOWTO (208),
970 EMPTY_HOWTO (209),
971 EMPTY_HOWTO (210),
972 EMPTY_HOWTO (211),
973 EMPTY_HOWTO (212),
974 EMPTY_HOWTO (213),
975 EMPTY_HOWTO (214),
976 EMPTY_HOWTO (215),
977 EMPTY_HOWTO (216),
978 EMPTY_HOWTO (217),
979 EMPTY_HOWTO (218),
980 EMPTY_HOWTO (219),
981 EMPTY_HOWTO (220),
982 EMPTY_HOWTO (221),
983 EMPTY_HOWTO (222),
984 EMPTY_HOWTO (223),
985 EMPTY_HOWTO (224),
986 EMPTY_HOWTO (225),
987 EMPTY_HOWTO (226),
988 EMPTY_HOWTO (227),
989 EMPTY_HOWTO (228),
990 EMPTY_HOWTO (229),
991 EMPTY_HOWTO (230),
992 EMPTY_HOWTO (231),
993 EMPTY_HOWTO (232),
994 EMPTY_HOWTO (233),
995 EMPTY_HOWTO (234),
996 EMPTY_HOWTO (235),
997 EMPTY_HOWTO (236),
998 EMPTY_HOWTO (237),
999 EMPTY_HOWTO (238),
1000 EMPTY_HOWTO (239),
1001 EMPTY_HOWTO (240),
1002 EMPTY_HOWTO (241),
1003
1004 /* Relocations for SHmedia code. None of these are partial_inplace or
1005 use the field being relocated. */
1006
1007 /* The assembler will generate this reloc before a block of SHmedia
1008 instructions. A section should be processed as assuming it contains
1009 data, unless this reloc is seen. Note that a block of SHcompact
1010 instructions are instead preceded by R_SH_CODE.
1011 This is currently not implemented, but should be used for SHmedia
1012 linker relaxation. */
1013 HOWTO (R_SH_SHMEDIA_CODE, /* type */
1014 0, /* rightshift */
1015 1, /* size (0 = byte, 1 = short, 2 = long) */
1016 0, /* bitsize */
1017 FALSE, /* pc_relative */
1018 0, /* bitpos */
1019 complain_overflow_unsigned, /* complain_on_overflow */
1020 sh_elf64_ignore_reloc, /* special_function */
1021 "R_SH_SHMEDIA_CODE", /* name */
1022 FALSE, /* partial_inplace */
1023 0, /* src_mask */
1024 0, /* dst_mask */
1025 FALSE), /* pcrel_offset */
1026
1027 /* The assembler will generate this reloc at a PTA or PTB instruction,
1028 and the linker checks the right type of target, or changes a PTA to a
1029 PTB, if the original insn was PT. */
1030 HOWTO (R_SH_PT_16, /* type */
1031 2, /* rightshift */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1033 18, /* bitsize */
1034 TRUE, /* pc_relative */
1035 10, /* bitpos */
1036 complain_overflow_signed, /* complain_on_overflow */
1037 bfd_elf_generic_reloc, /* special_function */
1038 "R_SH_PT_16", /* name */
1039 FALSE, /* partial_inplace */
1040 0, /* src_mask */
1041 0x3fffc00, /* dst_mask */
1042 TRUE), /* pcrel_offset */
1043
1044 /* Used in unexpanded MOVI. */
1045 HOWTO (R_SH_IMMS16, /* type */
1046 0, /* rightshift */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 16, /* bitsize */
1049 FALSE, /* pc_relative */
1050 10, /* bitpos */
1051 complain_overflow_signed, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_SH_IMMS16", /* name */
1054 FALSE, /* partial_inplace */
1055 0, /* src_mask */
1056 0x3fffc00, /* dst_mask */
1057 FALSE), /* pcrel_offset */
1058
1059 /* Used in SHORI. */
1060 HOWTO (R_SH_IMMU16, /* type */
1061 0, /* rightshift */
1062 2, /* size (0 = byte, 1 = short, 2 = long) */
1063 16, /* bitsize */
1064 FALSE, /* pc_relative */
1065 10, /* bitpos */
1066 complain_overflow_unsigned, /* complain_on_overflow */
1067 bfd_elf_generic_reloc, /* special_function */
1068 "R_SH_IMMU16", /* name */
1069 FALSE, /* partial_inplace */
1070 0, /* src_mask */
1071 0x3fffc00, /* dst_mask */
1072 FALSE), /* pcrel_offset */
1073
1074 /* Used in MOVI and SHORI (x & 65536). */
1075 HOWTO (R_SH_IMM_LOW16, /* type */
1076 0, /* rightshift */
1077 2, /* size (0 = byte, 1 = short, 2 = long) */
1078 64, /* bitsize */
1079 FALSE, /* pc_relative */
1080 10, /* bitpos */
1081 complain_overflow_dont, /* complain_on_overflow */
1082 bfd_elf_generic_reloc, /* special_function */
1083 "R_SH_IMM_LOW16", /* name */
1084 FALSE, /* partial_inplace */
1085 0, /* src_mask */
1086 0x3fffc00, /* dst_mask */
1087 FALSE), /* pcrel_offset */
1088
1089 /* Used in MOVI and SHORI ((x - $) & 65536). */
1090 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */
1091 0, /* rightshift */
1092 2, /* size (0 = byte, 1 = short, 2 = long) */
1093 64, /* bitsize */
1094 TRUE, /* pc_relative */
1095 10, /* bitpos */
1096 complain_overflow_dont, /* complain_on_overflow */
1097 bfd_elf_generic_reloc, /* special_function */
1098 "R_SH_IMM_LOW16_PCREL", /* name */
1099 FALSE, /* partial_inplace */
1100 0, /* src_mask */
1101 0x3fffc00, /* dst_mask */
1102 TRUE), /* pcrel_offset */
1103
1104 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1105 HOWTO (R_SH_IMM_MEDLOW16, /* type */
1106 16, /* rightshift */
1107 2, /* size (0 = byte, 1 = short, 2 = long) */
1108 64, /* bitsize */
1109 FALSE, /* pc_relative */
1110 10, /* bitpos */
1111 complain_overflow_dont, /* complain_on_overflow */
1112 bfd_elf_generic_reloc, /* special_function */
1113 "R_SH_IMM_MEDLOW16", /* name */
1114 FALSE, /* partial_inplace */
1115 0, /* src_mask */
1116 0x3fffc00, /* dst_mask */
1117 FALSE), /* pcrel_offset */
1118
1119 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
1120 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
1121 16, /* rightshift */
1122 2, /* size (0 = byte, 1 = short, 2 = long) */
1123 64, /* bitsize */
1124 TRUE, /* pc_relative */
1125 10, /* bitpos */
1126 complain_overflow_dont, /* complain_on_overflow */
1127 bfd_elf_generic_reloc, /* special_function */
1128 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1129 FALSE, /* partial_inplace */
1130 0, /* src_mask */
1131 0x3fffc00, /* dst_mask */
1132 TRUE), /* pcrel_offset */
1133
1134 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1135 HOWTO (R_SH_IMM_MEDHI16, /* type */
1136 32, /* rightshift */
1137 2, /* size (0 = byte, 1 = short, 2 = long) */
1138 64, /* bitsize */
1139 FALSE, /* pc_relative */
1140 10, /* bitpos */
1141 complain_overflow_dont, /* complain_on_overflow */
1142 bfd_elf_generic_reloc, /* special_function */
1143 "R_SH_IMM_MEDHI16", /* name */
1144 FALSE, /* partial_inplace */
1145 0, /* src_mask */
1146 0x3fffc00, /* dst_mask */
1147 FALSE), /* pcrel_offset */
1148
1149 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
1150 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
1151 32, /* rightshift */
1152 2, /* size (0 = byte, 1 = short, 2 = long) */
1153 64, /* bitsize */
1154 TRUE, /* pc_relative */
1155 10, /* bitpos */
1156 complain_overflow_dont, /* complain_on_overflow */
1157 bfd_elf_generic_reloc, /* special_function */
1158 "R_SH_IMM_MEDHI16_PCREL", /* name */
1159 FALSE, /* partial_inplace */
1160 0, /* src_mask */
1161 0x3fffc00, /* dst_mask */
1162 TRUE), /* pcrel_offset */
1163
1164 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1165 HOWTO (R_SH_IMM_HI16, /* type */
1166 48, /* rightshift */
1167 2, /* size (0 = byte, 1 = short, 2 = long) */
1168 64, /* bitsize */
1169 FALSE, /* pc_relative */
1170 10, /* bitpos */
1171 complain_overflow_dont, /* complain_on_overflow */
1172 bfd_elf_generic_reloc, /* special_function */
1173 "R_SH_IMM_HI16", /* name */
1174 FALSE, /* partial_inplace */
1175 0, /* src_mask */
1176 0x3fffc00, /* dst_mask */
1177 FALSE), /* pcrel_offset */
1178
1179 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
1180 HOWTO (R_SH_IMM_HI16_PCREL, /* type */
1181 48, /* rightshift */
1182 2, /* size (0 = byte, 1 = short, 2 = long) */
1183 64, /* bitsize */
1184 TRUE, /* pc_relative */
1185 10, /* bitpos */
1186 complain_overflow_dont, /* complain_on_overflow */
1187 bfd_elf_generic_reloc, /* special_function */
1188 "R_SH_IMM_HI16_PCREL", /* name */
1189 FALSE, /* partial_inplace */
1190 0, /* src_mask */
1191 0x3fffc00, /* dst_mask */
1192 TRUE), /* pcrel_offset */
1193
1194 /* For the .uaquad pseudo. */
1195 HOWTO (R_SH_64, /* type */
1196 0, /* rightshift */
1197 4, /* size (0 = byte, 1 = short, 2 = long) */
1198 64, /* bitsize */
1199 FALSE, /* pc_relative */
1200 0, /* bitpos */
1201 complain_overflow_dont, /* complain_on_overflow */
1202 bfd_elf_generic_reloc, /* special_function */
1203 "R_SH_64", /* name */
1204 FALSE, /* partial_inplace */
1205 0, /* src_mask */
1206 ((bfd_vma) 0) - 1, /* dst_mask */
1207 FALSE), /* pcrel_offset */
1208
1209 /* For the .uaquad pseudo, (x - $). */
1210 HOWTO (R_SH_64_PCREL, /* type */
1211 48, /* rightshift */
1212 2, /* size (0 = byte, 1 = short, 2 = long) */
1213 64, /* bitsize */
1214 TRUE, /* pc_relative */
1215 10, /* bitpos */
1216 complain_overflow_dont, /* complain_on_overflow */
1217 bfd_elf_generic_reloc, /* special_function */
1218 "R_SH_64_PCREL", /* name */
1219 FALSE, /* partial_inplace */
1220 0, /* src_mask */
1221 ((bfd_vma) 0) - 1, /* dst_mask */
1222 TRUE), /* pcrel_offset */
1223
1224 };
1225
1226 /* This function is used for relocs which are only used for relaxing,
1227 which the linker should otherwise ignore. */
1228
1229 static bfd_reloc_status_type
1230 sh_elf64_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
1231 asymbol *symbol ATTRIBUTE_UNUSED,
1232 void *data ATTRIBUTE_UNUSED, asection *input_section,
1233 bfd *output_bfd,
1234 char **error_message ATTRIBUTE_UNUSED)
1235 {
1236 if (output_bfd != NULL)
1237 reloc_entry->address += input_section->output_offset;
1238 return bfd_reloc_ok;
1239 }
1240
1241 /* This function is used for normal relocs. This used to be like the COFF
1242 function, and is almost certainly incorrect for other ELF targets.
1243
1244 See sh_elf_reloc in elf32-sh.c for the original. */
1245
1246 static bfd_reloc_status_type
1247 sh_elf64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
1248 void *data, asection *input_section, bfd *output_bfd,
1249 char **error_message ATTRIBUTE_UNUSED)
1250 {
1251 unsigned long insn;
1252 bfd_vma sym_value;
1253 enum elf_sh_reloc_type r_type;
1254 bfd_vma addr = reloc_entry->address;
1255 bfd_byte *hit_data = addr + (bfd_byte *) data;
1256
1257 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
1258
1259 if (output_bfd != NULL)
1260 {
1261 /* Partial linking--do nothing. */
1262 reloc_entry->address += input_section->output_offset;
1263 return bfd_reloc_ok;
1264 }
1265
1266 if (symbol_in != NULL
1267 && bfd_is_und_section (symbol_in->section))
1268 return bfd_reloc_undefined;
1269
1270 if (bfd_is_com_section (symbol_in->section))
1271 sym_value = 0;
1272 else
1273 sym_value = (symbol_in->value +
1274 symbol_in->section->output_section->vma +
1275 symbol_in->section->output_offset);
1276
1277 switch (r_type)
1278 {
1279 case R_SH_DIR32:
1280 insn = bfd_get_32 (abfd, hit_data);
1281 insn += sym_value + reloc_entry->addend;
1282 bfd_put_32 (abfd, insn, hit_data);
1283 break;
1284
1285 default:
1286 abort ();
1287 break;
1288 }
1289
1290 return bfd_reloc_ok;
1291 }
1292
1293 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
1294
1295 struct elf_reloc_map
1296 {
1297 bfd_reloc_code_real_type bfd_reloc_val;
1298 unsigned char elf_reloc_val;
1299 };
1300
1301 /* An array mapping BFD reloc codes to SH ELF relocs. */
1302
1303 static const struct elf_reloc_map sh64_reloc_map[] =
1304 {
1305 { BFD_RELOC_NONE, R_SH_NONE },
1306 { BFD_RELOC_32, R_SH_DIR32 },
1307 { BFD_RELOC_CTOR, R_SH_DIR32 },
1308 { BFD_RELOC_32_PCREL, R_SH_REL32 },
1309 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
1310 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
1311 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
1312 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
1313 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
1314 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
1315 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
1316 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
1317 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
1318 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
1319 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
1320 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
1321 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
1322 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
1323 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
1324 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
1325 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
1326 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
1327 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
1328 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
1329 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
1330 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
1331 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
1332 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
1333 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
1334 { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
1335 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
1336 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
1337 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
1338 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
1339 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
1340 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
1341 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
1342 { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
1343 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
1344 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
1345 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
1346 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
1347 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
1348 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
1349 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
1350 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
1351 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
1352 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
1353 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
1354 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
1355 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
1356 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
1357 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
1358 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
1359 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
1360 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
1361 { BFD_RELOC_64, R_SH_64 },
1362 { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
1363 };
1364
1365 /* Given a BFD reloc code, return the howto structure for the
1366 corresponding SH ELf reloc. */
1367
1368 static reloc_howto_type *
1369 sh_elf64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1370 bfd_reloc_code_real_type code)
1371 {
1372 unsigned int i;
1373
1374 for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++)
1375 {
1376 if (sh64_reloc_map[i].bfd_reloc_val == code)
1377 return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val];
1378 }
1379
1380 return NULL;
1381 }
1382
1383 static reloc_howto_type *
1384 sh_elf64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1385 const char *r_name)
1386 {
1387 unsigned int i;
1388
1389 for (i = 0;
1390 i < sizeof (sh_elf64_howto_table) / sizeof (sh_elf64_howto_table[0]);
1391 i++)
1392 if (sh_elf64_howto_table[i].name != NULL
1393 && strcasecmp (sh_elf64_howto_table[i].name, r_name) == 0)
1394 return &sh_elf64_howto_table[i];
1395
1396 return NULL;
1397 }
1398
1399 /* Given an ELF reloc, fill in the howto field of a relent.
1400
1401 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1402
1403 static void
1404 sh_elf64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
1405 Elf_Internal_Rela *dst)
1406 {
1407 unsigned int r;
1408
1409 r = ELF64_R_TYPE (dst->r_info);
1410
1411 BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL);
1412 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
1413 BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2);
1414 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32);
1415 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
1416
1417 cache_ptr->howto = &sh_elf64_howto_table[r];
1418 }
1419
1420 /* Relocate an SH ELF section.
1421
1422 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1423
1424 static bfd_boolean
1425 sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
1426 struct bfd_link_info *info, bfd *input_bfd,
1427 asection *input_section, bfd_byte *contents,
1428 Elf_Internal_Rela *relocs,
1429 Elf_Internal_Sym *local_syms,
1430 asection **local_sections)
1431 {
1432 Elf_Internal_Shdr *symtab_hdr;
1433 struct elf_link_hash_entry **sym_hashes;
1434 Elf_Internal_Rela *rel, *relend;
1435 bfd_vma *local_got_offsets;
1436 asection *sgot;
1437 asection *sgotplt;
1438 asection *splt;
1439 asection *sreloc;
1440 bfd_vma disp, dropped;
1441
1442 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1443 sym_hashes = elf_sym_hashes (input_bfd);
1444 local_got_offsets = elf_local_got_offsets (input_bfd);
1445
1446 sreloc = NULL;
1447
1448 rel = relocs;
1449 relend = relocs + input_section->reloc_count;
1450 for (; rel < relend; rel++)
1451 {
1452 int r_type;
1453 reloc_howto_type *howto;
1454 unsigned long r_symndx;
1455 Elf_Internal_Sym *sym;
1456 asection *sec;
1457 struct elf_link_hash_entry *h;
1458 bfd_vma relocation;
1459 bfd_vma addend = (bfd_vma)0;
1460 bfd_reloc_status_type r;
1461 int seen_stt_datalabel = 0;
1462
1463 r_symndx = ELF64_R_SYM (rel->r_info);
1464
1465 r_type = ELF64_R_TYPE (rel->r_info);
1466
1467 if (r_type == (int) R_SH_NONE)
1468 continue;
1469
1470 if (r_type < 0
1471 || r_type > R_SH_64_PCREL
1472 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
1473 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1474 || (r_type >= (int) R_SH_DIR8WPN
1475 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1476 || (r_type >= (int) R_SH_GNU_VTINHERIT
1477 && r_type <= (int) R_SH_PSHL)
1478 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
1479 && r_type <= R_SH_GOTPLT32)
1480 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
1481 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4))
1482 {
1483 bfd_set_error (bfd_error_bad_value);
1484 return FALSE;
1485 }
1486
1487 howto = sh_elf64_howto_table + r_type;
1488
1489 h = NULL;
1490 sym = NULL;
1491 sec = NULL;
1492 relocation = 0;
1493 if (r_symndx < symtab_hdr->sh_info)
1494 {
1495 sym = local_syms + r_symndx;
1496 sec = local_sections[r_symndx];
1497 relocation = ((sec->output_section->vma
1498 + sec->output_offset
1499 + sym->st_value)
1500 | ((sym->st_other & STO_SH5_ISA32) != 0));
1501
1502 /* A local symbol never has STO_SH5_ISA32, so we don't need
1503 datalabel processing here. Make sure this does not change
1504 without notice. */
1505 if ((sym->st_other & STO_SH5_ISA32) != 0)
1506 (*info->callbacks->reloc_dangerous)
1507 (info,
1508 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
1509 input_bfd, input_section, rel->r_offset);
1510
1511 if (sec != NULL && discarded_section (sec))
1512 /* Handled below. */
1513 ;
1514 else if (bfd_link_relocatable (info))
1515 {
1516 /* This is a relocatable link. We don't have to change
1517 anything, unless the reloc is against a section symbol,
1518 in which case we have to adjust according to where the
1519 section symbol winds up in the output section. */
1520 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1521 goto final_link_relocate;
1522
1523 continue;
1524 }
1525 else if (! howto->partial_inplace)
1526 {
1527 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1528 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0);
1529 }
1530 else if ((sec->flags & SEC_MERGE)
1531 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1532 {
1533 asection *msec;
1534
1535 if (howto->rightshift || howto->src_mask != 0xffffffff)
1536 {
1537 _bfd_error_handler
1538 /* xgettext:c-format */
1539 (_("%B(%A+%#Lx): %s relocation against SEC_MERGE section"),
1540 input_bfd, input_section,
1541 rel->r_offset, howto->name);
1542 return FALSE;
1543 }
1544
1545 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1546 msec = sec;
1547 addend =
1548 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1549 - relocation;
1550 addend += msec->output_section->vma + msec->output_offset;
1551 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1552 addend = 0;
1553 }
1554 }
1555 else
1556 {
1557 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1558
1559 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1560 while (h->root.type == bfd_link_hash_indirect
1561 || h->root.type == bfd_link_hash_warning)
1562 {
1563 /* If the reference passes a symbol marked with
1564 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1565 doesn't count. */
1566 seen_stt_datalabel |= h->type == STT_DATALABEL;
1567 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1568 }
1569
1570 if (h->root.type == bfd_link_hash_defined
1571 || h->root.type == bfd_link_hash_defweak)
1572 {
1573 sec = h->root.u.def.section;
1574 /* In these cases, we don't need the relocation value.
1575 We check specially because in some obscure cases
1576 sec->output_section will be NULL. */
1577 if (r_type == R_SH_GOTPC_LOW16
1578 || r_type == R_SH_GOTPC_MEDLOW16
1579 || r_type == R_SH_GOTPC_MEDHI16
1580 || r_type == R_SH_GOTPC_HI16
1581 || ((r_type == R_SH_PLT_LOW16
1582 || r_type == R_SH_PLT_MEDLOW16
1583 || r_type == R_SH_PLT_MEDHI16
1584 || r_type == R_SH_PLT_HI16)
1585 && h->plt.offset != (bfd_vma) -1)
1586 || ((r_type == R_SH_GOT_LOW16
1587 || r_type == R_SH_GOT_MEDLOW16
1588 || r_type == R_SH_GOT_MEDHI16
1589 || r_type == R_SH_GOT_HI16)
1590 && elf_hash_table (info)->dynamic_sections_created
1591 && (! bfd_link_pic (info)
1592 || (! info->symbolic && h->dynindx != -1)
1593 || !h->def_regular))
1594 /* The cases above are those in which relocation is
1595 overwritten in the switch block below. The cases
1596 below are those in which we must defer relocation
1597 to run-time, because we can't resolve absolute
1598 addresses when creating a shared library. */
1599 || (bfd_link_pic (info)
1600 && ((! info->symbolic && h->dynindx != -1)
1601 || !h->def_regular)
1602 && ((r_type == R_SH_64
1603 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1604 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1605 || r_type == R_SH_64_PCREL)
1606 && ((input_section->flags & SEC_ALLOC) != 0
1607 /* DWARF will emit R_SH_DIR32 relocations in its
1608 sections against symbols defined externally
1609 in shared libraries. We can't do anything
1610 with them here. */
1611 || (input_section->flags & SEC_DEBUGGING) != 0))
1612 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1613 sections because such sections are not SEC_ALLOC and
1614 thus ld.so will not process them. */
1615 || (sec->output_section == NULL
1616 && ((input_section->flags & SEC_DEBUGGING) != 0
1617 && h->def_dynamic)))
1618 ;
1619 else if (sec->output_section != NULL)
1620 relocation = ((h->root.u.def.value
1621 + sec->output_section->vma
1622 + sec->output_offset)
1623 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1624 symbol value, unless we've seen
1625 STT_DATALABEL on the way to it. */
1626 | ((h->other & STO_SH5_ISA32) != 0
1627 && ! seen_stt_datalabel));
1628 else if (!bfd_link_relocatable (info)
1629 && (_bfd_elf_section_offset (output_bfd, info,
1630 input_section,
1631 rel->r_offset)
1632 != (bfd_vma) -1))
1633 {
1634 _bfd_error_handler
1635 /* xgettext:c-format */
1636 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
1637 input_bfd,
1638 input_section,
1639 rel->r_offset,
1640 howto->name,
1641 h->root.root.string);
1642 }
1643 }
1644 else if (h->root.type == bfd_link_hash_undefweak)
1645 ;
1646 else if (info->unresolved_syms_in_objects == RM_IGNORE
1647 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1648 ;
1649 else if (!bfd_link_relocatable (info))
1650 (*info->callbacks->undefined_symbol)
1651 (info, h->root.root.string, input_bfd,
1652 input_section, rel->r_offset,
1653 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1654 || ELF_ST_VISIBILITY (h->other)));
1655 }
1656
1657 if (sec != NULL && discarded_section (sec))
1658 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1659 rel, 1, relend, howto, 0, contents);
1660
1661 if (bfd_link_relocatable (info))
1662 continue;
1663
1664 disp = (relocation
1665 - input_section->output_section->vma
1666 - input_section->output_offset
1667 - rel->r_offset);
1668 dropped = 0;
1669 switch ((int)r_type)
1670 {
1671 case R_SH_PT_16: dropped = disp & 2; break;
1672 case R_SH_DIR10SW: dropped = disp & 1; break;
1673 case R_SH_DIR10SL: dropped = disp & 3; break;
1674 case R_SH_DIR10SQ: dropped = disp & 7; break;
1675 }
1676 if (dropped != 0)
1677 {
1678 _bfd_error_handler
1679 /* xgettext:c-format */
1680 (_("%B: error: unaligned relocation type %d at %08Lx reloc %08Lx"),
1681 input_bfd, (int) r_type, rel->r_offset,
1682 relocation);
1683 bfd_set_error (bfd_error_bad_value);
1684 return FALSE;
1685 }
1686 switch ((int)r_type)
1687 {
1688 case R_SH_64:
1689 case R_SH_64_PCREL:
1690 if (bfd_link_pic (info)
1691 && (input_section->flags & SEC_ALLOC) != 0
1692 && (r_type != R_SH_64_PCREL
1693 || (h != NULL
1694 && h->dynindx != -1
1695 && (! info->symbolic
1696 || !h->def_regular))))
1697 {
1698 Elf_Internal_Rela outrel;
1699 bfd_byte *loc;
1700 bfd_boolean skip, relocate;
1701
1702 /* When generating a shared object, these relocations
1703 are copied into the output file to be resolved at run
1704 time. */
1705
1706 if (sreloc == NULL)
1707 {
1708 sreloc = _bfd_elf_get_dynamic_reloc_section
1709 (input_bfd, input_section, /*rela?*/ TRUE);
1710 if (sreloc == NULL)
1711 return FALSE;
1712 }
1713
1714 skip = FALSE;
1715 relocate = FALSE;
1716
1717 outrel.r_offset
1718 = _bfd_elf_section_offset (output_bfd, info,
1719 input_section, rel->r_offset);
1720
1721 if (outrel.r_offset == (bfd_vma) -1)
1722 skip = TRUE;
1723 else if (outrel.r_offset == (bfd_vma) -2)
1724 skip = TRUE, relocate = TRUE;
1725
1726 outrel.r_offset += (input_section->output_section->vma
1727 + input_section->output_offset);
1728
1729 if (skip)
1730 memset (&outrel, 0, sizeof outrel);
1731 else if (r_type == R_SH_64_PCREL)
1732 {
1733 BFD_ASSERT (h != NULL && h->dynindx != -1);
1734 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1735 outrel.r_addend = rel->r_addend;
1736 }
1737 else
1738 {
1739 /* h->dynindx may be -1 if this symbol was marked to
1740 become local. */
1741 if (h == NULL
1742 || ((info->symbolic || h->dynindx == -1)
1743 && h->def_regular))
1744 {
1745 relocate = TRUE;
1746 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1747 outrel.r_addend = relocation + rel->r_addend;
1748 }
1749 else
1750 {
1751 BFD_ASSERT (h->dynindx != -1);
1752 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1753 outrel.r_addend = relocation + rel->r_addend;
1754 }
1755 }
1756
1757 loc = sreloc->contents;
1758 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1759 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1760
1761 /* If this reloc is against an external symbol, we do
1762 not want to fiddle with the addend. Otherwise, we
1763 need to include the symbol value so that it becomes
1764 an addend for the dynamic reloc. */
1765 if (! relocate)
1766 continue;
1767 }
1768 else if (r_type == R_SH_64)
1769 addend = rel->r_addend;
1770 goto final_link_relocate;
1771
1772 case R_SH_GOTPLT_LOW16:
1773 case R_SH_GOTPLT_MEDLOW16:
1774 case R_SH_GOTPLT_MEDHI16:
1775 case R_SH_GOTPLT_HI16:
1776 case R_SH_GOTPLT10BY4:
1777 case R_SH_GOTPLT10BY8:
1778 /* Relocation is to the entry for this symbol in the
1779 procedure linkage table. */
1780
1781 if (h == NULL
1782 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1783 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1784 || ! bfd_link_pic (info)
1785 || info->symbolic
1786 || h->dynindx == -1
1787 || h->plt.offset == (bfd_vma) -1
1788 || h->got.offset != (bfd_vma) -1)
1789 goto force_got;
1790
1791 /* Relocation is to the entry for this symbol in the global
1792 offset table extension for the procedure linkage table. */
1793 sgotplt = elf_hash_table (info)->sgotplt;
1794 BFD_ASSERT (sgotplt != NULL);
1795
1796 relocation = (sgotplt->output_offset
1797 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1798 - 1 + 3) * 8));
1799
1800 relocation -= GOT_BIAS;
1801
1802 goto final_link_relocate;
1803
1804 force_got:
1805 case R_SH_GOT_LOW16:
1806 case R_SH_GOT_MEDLOW16:
1807 case R_SH_GOT_MEDHI16:
1808 case R_SH_GOT_HI16:
1809 case R_SH_GOT10BY4:
1810 case R_SH_GOT10BY8:
1811 /* Relocation is to the entry for this symbol in the global
1812 offset table. */
1813 sgot = elf_hash_table (info)->sgot;
1814 BFD_ASSERT (sgot != NULL);
1815
1816 if (h != NULL)
1817 {
1818 bfd_vma off;
1819
1820 off = h->got.offset;
1821 if (seen_stt_datalabel)
1822 {
1823 struct elf_sh64_link_hash_entry *hsh;
1824
1825 hsh = (struct elf_sh64_link_hash_entry *)h;
1826 off = hsh->datalabel_got_offset;
1827 }
1828 BFD_ASSERT (off != (bfd_vma) -1);
1829
1830 if (! elf_hash_table (info)->dynamic_sections_created
1831 || (bfd_link_pic (info)
1832 && (info->symbolic || h->dynindx == -1
1833 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1834 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1835 && h->def_regular))
1836 {
1837 /* This is actually a static link, or it is a
1838 -Bsymbolic link and the symbol is defined
1839 locally, or the symbol was forced to be local
1840 because of a version file. We must initialize
1841 this entry in the global offset table. Since the
1842 offset must always be a multiple of 4, we use the
1843 least significant bit to record whether we have
1844 initialized it already.
1845
1846 When doing a dynamic link, we create a .rela.got
1847 relocation entry to initialize the value. This
1848 is done in the finish_dynamic_symbol routine. */
1849 if ((off & 1) != 0)
1850 off &= ~1;
1851 else
1852 {
1853 bfd_put_64 (output_bfd, relocation,
1854 sgot->contents + off);
1855 if (seen_stt_datalabel)
1856 {
1857 struct elf_sh64_link_hash_entry *hsh;
1858
1859 hsh = (struct elf_sh64_link_hash_entry *)h;
1860 hsh->datalabel_got_offset |= 1;
1861 }
1862 else
1863 h->got.offset |= 1;
1864 }
1865 }
1866
1867 relocation = sgot->output_offset + off;
1868 }
1869 else
1870 {
1871 bfd_vma off;
1872
1873 if (rel->r_addend)
1874 {
1875 BFD_ASSERT (local_got_offsets != NULL
1876 && (local_got_offsets[symtab_hdr->sh_info
1877 + r_symndx]
1878 != (bfd_vma) -1));
1879
1880 off = local_got_offsets[symtab_hdr->sh_info
1881 + r_symndx];
1882 }
1883 else
1884 {
1885 BFD_ASSERT (local_got_offsets != NULL
1886 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1887
1888 off = local_got_offsets[r_symndx];
1889 }
1890
1891 /* The offset must always be a multiple of 8. We use
1892 the least significant bit to record whether we have
1893 already generated the necessary reloc. */
1894 if ((off & 1) != 0)
1895 off &= ~1;
1896 else
1897 {
1898 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1899
1900 if (bfd_link_pic (info))
1901 {
1902 asection *s;
1903 Elf_Internal_Rela outrel;
1904 bfd_byte *loc;
1905
1906 s = elf_hash_table (info)->srelgot;
1907 BFD_ASSERT (s != NULL);
1908
1909 outrel.r_offset = (sgot->output_section->vma
1910 + sgot->output_offset
1911 + off);
1912 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1913 outrel.r_addend = relocation;
1914 loc = s->contents;
1915 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1916 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1917 }
1918
1919 if (rel->r_addend)
1920 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1921 else
1922 local_got_offsets[r_symndx] |= 1;
1923 }
1924
1925 relocation = sgot->output_offset + off;
1926 }
1927
1928 relocation -= GOT_BIAS;
1929
1930 goto final_link_relocate;
1931
1932 case R_SH_GOTOFF_LOW16:
1933 case R_SH_GOTOFF_MEDLOW16:
1934 case R_SH_GOTOFF_MEDHI16:
1935 case R_SH_GOTOFF_HI16:
1936 /* Relocation is relative to the start of the global offset
1937 table. */
1938
1939 sgot = elf_hash_table (info)->sgot;
1940 BFD_ASSERT (sgot != NULL);
1941
1942 /* Note that sgot->output_offset is not involved in this
1943 calculation. We always want the start of .got. If we
1944 defined _GLOBAL_OFFSET_TABLE in a different way, as is
1945 permitted by the ABI, we might have to change this
1946 calculation. */
1947 relocation -= sgot->output_section->vma;
1948
1949 relocation -= GOT_BIAS;
1950
1951 addend = rel->r_addend;
1952
1953 goto final_link_relocate;
1954
1955 case R_SH_GOTPC_LOW16:
1956 case R_SH_GOTPC_MEDLOW16:
1957 case R_SH_GOTPC_MEDHI16:
1958 case R_SH_GOTPC_HI16:
1959 /* Use global offset table as symbol value. */
1960
1961 sgot = elf_hash_table (info)->sgot;
1962 BFD_ASSERT (sgot != NULL);
1963
1964 relocation = sgot->output_section->vma;
1965
1966 relocation += GOT_BIAS;
1967
1968 addend = rel->r_addend;
1969
1970 goto final_link_relocate;
1971
1972 case R_SH_PLT_LOW16:
1973 case R_SH_PLT_MEDLOW16:
1974 case R_SH_PLT_MEDHI16:
1975 case R_SH_PLT_HI16:
1976 /* Relocation is to the entry for this symbol in the
1977 procedure linkage table. */
1978
1979 /* Resolve a PLT reloc against a local symbol directly,
1980 without using the procedure linkage table. */
1981 if (h == NULL)
1982 goto final_link_relocate;
1983
1984 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1985 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1986 goto final_link_relocate;
1987
1988 if (h->plt.offset == (bfd_vma) -1)
1989 {
1990 /* We didn't make a PLT entry for this symbol. This
1991 happens when statically linking PIC code, or when
1992 using -Bsymbolic. */
1993 goto final_link_relocate;
1994 }
1995
1996 splt = elf_hash_table (info)->splt;
1997 BFD_ASSERT (splt != NULL);
1998
1999 relocation = (splt->output_section->vma
2000 + splt->output_offset
2001 + h->plt.offset);
2002 relocation++;
2003
2004 addend = rel->r_addend;
2005
2006 goto final_link_relocate;
2007
2008 case R_SH_DIR32:
2009 case R_SH_SHMEDIA_CODE:
2010 case R_SH_PT_16:
2011 case R_SH_DIR5U:
2012 case R_SH_DIR6S:
2013 case R_SH_DIR6U:
2014 case R_SH_DIR10S:
2015 case R_SH_DIR10SW:
2016 case R_SH_DIR10SL:
2017 case R_SH_DIR10SQ:
2018 case R_SH_IMMS16:
2019 case R_SH_IMMU16:
2020 case R_SH_IMM_LOW16:
2021 case R_SH_IMM_LOW16_PCREL:
2022 case R_SH_IMM_MEDLOW16:
2023 case R_SH_IMM_MEDLOW16_PCREL:
2024 case R_SH_IMM_MEDHI16:
2025 case R_SH_IMM_MEDHI16_PCREL:
2026 case R_SH_IMM_HI16:
2027 case R_SH_IMM_HI16_PCREL:
2028 addend = rel->r_addend;
2029 /* Fall through. */
2030 case R_SH_REL32:
2031 final_link_relocate:
2032 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2033 contents, rel->r_offset,
2034 relocation, addend);
2035 break;
2036
2037 default:
2038 bfd_set_error (bfd_error_bad_value);
2039 return FALSE;
2040
2041 }
2042
2043 if (r != bfd_reloc_ok)
2044 {
2045 switch (r)
2046 {
2047 default:
2048 case bfd_reloc_outofrange:
2049 abort ();
2050 case bfd_reloc_overflow:
2051 {
2052 const char *name;
2053
2054 if (h != NULL)
2055 name = NULL;
2056 else
2057 {
2058 name = (bfd_elf_string_from_elf_section
2059 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2060 if (name == NULL)
2061 return FALSE;
2062 if (*name == '\0')
2063 name = bfd_section_name (input_bfd, sec);
2064 }
2065 (*info->callbacks->reloc_overflow)
2066 (info, (h ? &h->root : NULL), name, howto->name,
2067 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2068 }
2069 break;
2070 }
2071 }
2072 }
2073
2074 return TRUE;
2075 }
2076
2077 /* This is a version of bfd_generic_get_relocated_section_contents
2078 that uses sh_elf64_relocate_section.
2079
2080 See sh_elf_relocate_section in elf32-sh.c for the original. */
2081
2082 static bfd_byte *
2083 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2084 struct bfd_link_info *link_info,
2085 struct bfd_link_order *link_order,
2086 bfd_byte *data,
2087 bfd_boolean relocatable,
2088 asymbol **symbols)
2089 {
2090 Elf_Internal_Shdr *symtab_hdr;
2091 asection *input_section = link_order->u.indirect.section;
2092 bfd *input_bfd = input_section->owner;
2093 asection **sections = NULL;
2094 Elf_Internal_Rela *internal_relocs = NULL;
2095 Elf_Internal_Sym *isymbuf = NULL;
2096
2097 /* We only need to handle the case of relaxing, or of having a
2098 particular set of section contents, specially. */
2099 if (relocatable
2100 || elf_section_data (input_section)->this_hdr.contents == NULL)
2101 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2102 link_order, data,
2103 relocatable,
2104 symbols);
2105
2106 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2107
2108 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2109 input_section->size);
2110
2111 if ((input_section->flags & SEC_RELOC) != 0
2112 && input_section->reloc_count > 0)
2113 {
2114 Elf_Internal_Sym *isymp;
2115 Elf_Internal_Sym *isymend;
2116 asection **secpp;
2117
2118 /* Read this BFD's local symbols. */
2119 if (symtab_hdr->sh_info != 0)
2120 {
2121 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2122 if (isymbuf == NULL)
2123 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2124 symtab_hdr->sh_info, 0,
2125 NULL, NULL, NULL);
2126 if (isymbuf == NULL)
2127 goto error_return;
2128 }
2129
2130 internal_relocs = (_bfd_elf_link_read_relocs
2131 (input_bfd, input_section, NULL,
2132 (Elf_Internal_Rela *) NULL, FALSE));
2133 if (internal_relocs == NULL)
2134 goto error_return;
2135
2136 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2137 * sizeof (asection *));
2138 if (sections == NULL && symtab_hdr->sh_info > 0)
2139 goto error_return;
2140
2141 secpp = sections;
2142 isymend = isymbuf + symtab_hdr->sh_info;
2143 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2144 {
2145 asection *isec;
2146
2147 if (isymp->st_shndx == SHN_UNDEF)
2148 isec = bfd_und_section_ptr;
2149 else if (isymp->st_shndx == SHN_ABS)
2150 isec = bfd_abs_section_ptr;
2151 else if (isymp->st_shndx == SHN_COMMON)
2152 isec = bfd_com_section_ptr;
2153 else
2154 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2155
2156 *secpp = isec;
2157 }
2158
2159 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2160 input_section, data, internal_relocs,
2161 isymbuf, sections))
2162 goto error_return;
2163
2164 if (sections != NULL)
2165 free (sections);
2166 if (internal_relocs != elf_section_data (input_section)->relocs)
2167 free (internal_relocs);
2168 if (isymbuf != NULL
2169 && (unsigned char *) isymbuf != symtab_hdr->contents)
2170 free (isymbuf);
2171 }
2172
2173 return data;
2174
2175 error_return:
2176 if (sections != NULL)
2177 free (sections);
2178 if (internal_relocs != NULL
2179 && internal_relocs != elf_section_data (input_section)->relocs)
2180 free (internal_relocs);
2181 if (isymbuf != NULL
2182 && (unsigned char *) isymbuf != symtab_hdr->contents)
2183 free (isymbuf);
2184 return NULL;
2185 }
2186
2187 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2188
2189 static bfd_boolean
2190 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2191 Elf_Internal_Shdr *elf_section_hdr,
2192 asection *asect)
2193 {
2194 /* Code sections can only contain SH64 code, so mark them as such. */
2195 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2196 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2197
2198 return TRUE;
2199 }
2200
2201 static bfd_boolean
2202 sh_elf64_set_mach_from_flags (bfd *abfd)
2203 {
2204 flagword flags = elf_elfheader (abfd)->e_flags;
2205
2206 switch (flags & EF_SH_MACH_MASK)
2207 {
2208 case EF_SH5:
2209 /* Just one, but keep the switch construct to make additions easy. */
2210 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2211 break;
2212
2213 default:
2214 bfd_set_error (bfd_error_wrong_format);
2215 return FALSE;
2216 }
2217 return TRUE;
2218 }
2219
2220 /* Function to keep SH64 specific file flags.
2221
2222 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2223
2224 static bfd_boolean
2225 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2226 {
2227 BFD_ASSERT (! elf_flags_init (abfd)
2228 || elf_elfheader (abfd)->e_flags == flags);
2229
2230 elf_elfheader (abfd)->e_flags = flags;
2231 elf_flags_init (abfd) = TRUE;
2232 return sh_elf64_set_mach_from_flags (abfd);
2233 }
2234
2235 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2236 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2237
2238 static bfd_boolean
2239 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2240 {
2241 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2242 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2243 return TRUE;
2244
2245 /* Copy object attributes. */
2246 _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2247
2248 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2249 }
2250
2251 static bfd_boolean
2252 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2253 {
2254 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2255 }
2256
2257 static bfd_boolean
2258 sh_elf64_merge_private_data (bfd *ibfd, struct bfd_link_info *info)
2259 {
2260 bfd *obfd = info->output_bfd;
2261 flagword old_flags, new_flags;
2262
2263 if (! _bfd_generic_verify_endian_match (ibfd, info))
2264 return FALSE;
2265
2266 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2267 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2268 return TRUE;
2269
2270 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2271 {
2272 const char *msg;
2273
2274 if (bfd_get_arch_size (ibfd) == 32
2275 && bfd_get_arch_size (obfd) == 64)
2276 /* xgettext:c-format */
2277 msg = _("%B: compiled as 32-bit object and %B is 64-bit");
2278 else if (bfd_get_arch_size (ibfd) == 64
2279 && bfd_get_arch_size (obfd) == 32)
2280 /* xgettext:c-format */
2281 msg = _("%B: compiled as 64-bit object and %B is 32-bit");
2282 else
2283 /* xgettext:c-format */
2284 msg = _("%B: object size does not match that of target %B");
2285
2286 _bfd_error_handler (msg, ibfd, obfd);
2287 bfd_set_error (bfd_error_wrong_format);
2288 return FALSE;
2289 }
2290
2291 old_flags = elf_elfheader (obfd)->e_flags;
2292 new_flags = elf_elfheader (ibfd)->e_flags;
2293 if (! elf_flags_init (obfd))
2294 {
2295 /* This happens when ld starts out with a 'blank' output file. */
2296 elf_flags_init (obfd) = TRUE;
2297 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2298 }
2299 /* We don't allow linking in anything else than SH64 code, and since
2300 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2301 here as things change. */
2302 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2303 {
2304 _bfd_error_handler
2305 ("%B: does not use the SH64 64-bit ABI as previous modules do", ibfd);
2306 bfd_set_error (bfd_error_bad_value);
2307 return FALSE;
2308 }
2309
2310 sh_elf64_copy_private_data_internal (ibfd, obfd);
2311
2312 /* I can't think of anything sane other than old_flags being EF_SH5 and
2313 that we need to preserve that. */
2314 elf_elfheader (obfd)->e_flags = old_flags;
2315
2316 return sh_elf64_set_mach_from_flags (obfd);
2317 }
2318
2319 /* Return the section that should be marked against GC for a given
2320 relocation. */
2321
2322 static asection *
2323 sh_elf64_gc_mark_hook (asection *sec,
2324 struct bfd_link_info *info,
2325 Elf_Internal_Rela *rel,
2326 struct elf_link_hash_entry *h,
2327 Elf_Internal_Sym *sym)
2328 {
2329 if (h != NULL)
2330 switch (ELF64_R_TYPE (rel->r_info))
2331 {
2332 case R_SH_GNU_VTINHERIT:
2333 case R_SH_GNU_VTENTRY:
2334 return NULL;
2335 }
2336
2337 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2338 }
2339
2340 /* Look through the relocs for a section during the first phase.
2341 Since we don't do .gots or .plts, we just need to consider the
2342 virtual table relocs for gc. */
2343
2344 static bfd_boolean
2345 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2346 asection *sec, const Elf_Internal_Rela *relocs)
2347 {
2348 Elf_Internal_Shdr *symtab_hdr;
2349 struct elf_link_hash_entry **sym_hashes;
2350 const Elf_Internal_Rela *rel;
2351 const Elf_Internal_Rela *rel_end;
2352 bfd *dynobj;
2353 bfd_vma *local_got_offsets;
2354 asection *sgot;
2355 asection *srelgot;
2356 asection *sreloc;
2357
2358 sreloc = NULL;
2359
2360 if (bfd_link_relocatable (info))
2361 return TRUE;
2362
2363 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2364 sym_hashes = elf_sym_hashes (abfd);
2365
2366 dynobj = elf_hash_table (info)->dynobj;
2367 local_got_offsets = elf_local_got_offsets (abfd);
2368
2369 rel_end = relocs + sec->reloc_count;
2370 for (rel = relocs; rel < rel_end; rel++)
2371 {
2372 struct elf_link_hash_entry *h;
2373 unsigned long r_symndx;
2374
2375 r_symndx = ELF64_R_SYM (rel->r_info);
2376 if (r_symndx < symtab_hdr->sh_info)
2377 h = NULL;
2378 else
2379 {
2380 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2381 while (h->root.type == bfd_link_hash_indirect
2382 || h->root.type == bfd_link_hash_warning)
2383 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2384 }
2385
2386 /* Some relocs require a global offset table. */
2387 if (dynobj == NULL)
2388 {
2389 switch (ELF64_R_TYPE (rel->r_info))
2390 {
2391 case R_SH_GOTPLT_LOW16:
2392 case R_SH_GOTPLT_MEDLOW16:
2393 case R_SH_GOTPLT_MEDHI16:
2394 case R_SH_GOTPLT_HI16:
2395 case R_SH_GOTPLT10BY4:
2396 case R_SH_GOTPLT10BY8:
2397 case R_SH_GOT_LOW16:
2398 case R_SH_GOT_MEDLOW16:
2399 case R_SH_GOT_MEDHI16:
2400 case R_SH_GOT_HI16:
2401 case R_SH_GOT10BY4:
2402 case R_SH_GOT10BY8:
2403 case R_SH_GOTOFF_LOW16:
2404 case R_SH_GOTOFF_MEDLOW16:
2405 case R_SH_GOTOFF_MEDHI16:
2406 case R_SH_GOTOFF_HI16:
2407 case R_SH_GOTPC_LOW16:
2408 case R_SH_GOTPC_MEDLOW16:
2409 case R_SH_GOTPC_MEDHI16:
2410 case R_SH_GOTPC_HI16:
2411 elf_hash_table (info)->dynobj = dynobj = abfd;
2412 if (! _bfd_elf_create_got_section (dynobj, info))
2413 return FALSE;
2414 break;
2415
2416 default:
2417 break;
2418 }
2419 }
2420
2421 switch (ELF64_R_TYPE (rel->r_info))
2422 {
2423 /* This relocation describes the C++ object vtable hierarchy.
2424 Reconstruct it for later use during GC. */
2425 case R_SH_GNU_VTINHERIT:
2426 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2427 return FALSE;
2428 break;
2429
2430 /* This relocation describes which C++ vtable entries are actually
2431 used. Record for later use during GC. */
2432 case R_SH_GNU_VTENTRY:
2433 BFD_ASSERT (h != NULL);
2434 if (h != NULL
2435 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2436 return FALSE;
2437 break;
2438
2439 force_got:
2440 case R_SH_GOT_LOW16:
2441 case R_SH_GOT_MEDLOW16:
2442 case R_SH_GOT_MEDHI16:
2443 case R_SH_GOT_HI16:
2444 case R_SH_GOT10BY4:
2445 case R_SH_GOT10BY8:
2446 /* This symbol requires a global offset table entry. */
2447
2448 sgot = elf_hash_table (info)->sgot;
2449 srelgot = elf_hash_table (info)->srelgot;
2450 BFD_ASSERT (sgot != NULL && srelgot != NULL);
2451
2452 if (h != NULL)
2453 {
2454 if (h->type == STT_DATALABEL)
2455 {
2456 struct elf_sh64_link_hash_entry *hsh;
2457
2458 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2459 hsh = (struct elf_sh64_link_hash_entry *)h;
2460 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2461 break;
2462
2463 hsh->datalabel_got_offset = sgot->size;
2464 }
2465 else
2466 {
2467 if (h->got.offset != (bfd_vma) -1)
2468 {
2469 /* We have already allocated space in the .got. */
2470 break;
2471 }
2472 h->got.offset = sgot->size;
2473 }
2474
2475 /* Make sure this symbol is output as a dynamic symbol. */
2476 if (h->dynindx == -1)
2477 {
2478 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2479 return FALSE;
2480 }
2481
2482 srelgot->size += sizeof (Elf64_External_Rela);
2483 }
2484 else
2485 {
2486 /* This is a global offset table entry for a local
2487 symbol. */
2488 if (local_got_offsets == NULL)
2489 {
2490 size_t size;
2491 register unsigned int i;
2492
2493 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2494 /* Reserve space for both the datalabel and
2495 codelabel local GOT offsets. */
2496 size *= 2;
2497 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2498 if (local_got_offsets == NULL)
2499 return FALSE;
2500 elf_local_got_offsets (abfd) = local_got_offsets;
2501 for (i = 0; i < symtab_hdr->sh_info; i++)
2502 local_got_offsets[i] = (bfd_vma) -1;
2503 for (; i < 2 * symtab_hdr->sh_info; i++)
2504 local_got_offsets[i] = (bfd_vma) -1;
2505 }
2506 if ((rel->r_addend & 1) != 0)
2507 {
2508 if (local_got_offsets[symtab_hdr->sh_info
2509 + r_symndx] != (bfd_vma) -1)
2510 {
2511 /* We have already allocated space in the .got. */
2512 break;
2513 }
2514 local_got_offsets[symtab_hdr->sh_info
2515 + r_symndx] = sgot->size;
2516 }
2517 else
2518 {
2519 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2520 {
2521 /* We have already allocated space in the .got. */
2522 break;
2523 }
2524 local_got_offsets[r_symndx] = sgot->size;
2525 }
2526
2527 if (bfd_link_pic (info))
2528 {
2529 /* If we are generating a shared object, we need to
2530 output a R_SH_RELATIVE reloc so that the dynamic
2531 linker can adjust this GOT entry. */
2532 srelgot->size += sizeof (Elf64_External_Rela);
2533 }
2534 }
2535
2536 sgot->size += 8;
2537
2538 break;
2539
2540 case R_SH_GOTPLT_LOW16:
2541 case R_SH_GOTPLT_MEDLOW16:
2542 case R_SH_GOTPLT_MEDHI16:
2543 case R_SH_GOTPLT_HI16:
2544 case R_SH_GOTPLT10BY4:
2545 case R_SH_GOTPLT10BY8:
2546 /* If this is a local symbol, we resolve it directly without
2547 creating a procedure linkage table entry. */
2548
2549 if (h == NULL
2550 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2551 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2552 || ! bfd_link_pic (info)
2553 || info->symbolic
2554 || h->dynindx == -1
2555 || h->got.offset != (bfd_vma) -1)
2556 goto force_got;
2557
2558 /* Make sure this symbol is output as a dynamic symbol. */
2559 if (h->dynindx == -1)
2560 {
2561 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2562 return FALSE;
2563 }
2564
2565 h->needs_plt = 1;
2566
2567 break;
2568
2569 case R_SH_PLT_LOW16:
2570 case R_SH_PLT_MEDLOW16:
2571 case R_SH_PLT_MEDHI16:
2572 case R_SH_PLT_HI16:
2573 /* This symbol requires a procedure linkage table entry. We
2574 actually build the entry in adjust_dynamic_symbol,
2575 because this might be a case of linking PIC code which is
2576 never referenced by a dynamic object, in which case we
2577 don't need to generate a procedure linkage table entry
2578 after all. */
2579
2580 /* If this is a local symbol, we resolve it directly without
2581 creating a procedure linkage table entry. */
2582 if (h == NULL)
2583 continue;
2584
2585 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2586 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2587 break;
2588
2589 h->needs_plt = 1;
2590
2591 break;
2592
2593 case R_SH_64:
2594 case R_SH_64_PCREL:
2595 if (h != NULL)
2596 h->non_got_ref = 1;
2597
2598 /* If we are creating a shared library, and this is a reloc
2599 against a global symbol, or a non PC relative reloc
2600 against a local symbol, then we need to copy the reloc
2601 into the shared library. However, if we are linking with
2602 -Bsymbolic, we do not need to copy a reloc against a
2603 global symbol which is defined in an object we are
2604 including in the link (i.e., DEF_REGULAR is set). At
2605 this point we have not seen all the input files, so it is
2606 possible that DEF_REGULAR is not set now but will be set
2607 later (it is never cleared). We account for that
2608 possibility below by storing information in the
2609 pcrel_relocs_copied field of the hash table entry. */
2610 if (bfd_link_pic (info)
2611 && (sec->flags & SEC_ALLOC) != 0
2612 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2613 || (h != NULL
2614 && (! info->symbolic
2615 || !h->def_regular))))
2616 {
2617 /* When creating a shared object, we must copy these
2618 reloc types into the output file. We create a reloc
2619 section in dynobj and make room for this reloc. */
2620 if (sreloc == NULL)
2621 {
2622 sreloc = _bfd_elf_make_dynamic_reloc_section
2623 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
2624
2625 if (sreloc == NULL)
2626 return FALSE;
2627 }
2628
2629 sreloc->size += sizeof (Elf64_External_Rela);
2630
2631 /* If we are linking with -Bsymbolic, and this is a
2632 global symbol, we count the number of PC relative
2633 relocations we have entered for this symbol, so that
2634 we can discard them again if the symbol is later
2635 defined by a regular object. Note that this function
2636 is only called if we are using an elf_sh linker
2637 hash table, which means that h is really a pointer to
2638 an elf_sh_link_hash_entry. */
2639 if (h != NULL && info->symbolic
2640 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2641 {
2642 struct elf_sh64_link_hash_entry *eh;
2643 struct elf_sh64_pcrel_relocs_copied *p;
2644
2645 eh = (struct elf_sh64_link_hash_entry *) h;
2646
2647 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2648 if (p->section == sreloc)
2649 break;
2650
2651 if (p == NULL)
2652 {
2653 p = ((struct elf_sh64_pcrel_relocs_copied *)
2654 bfd_alloc (dynobj, sizeof *p));
2655 if (p == NULL)
2656 return FALSE;
2657 p->next = eh->pcrel_relocs_copied;
2658 eh->pcrel_relocs_copied = p;
2659 p->section = sreloc;
2660 p->count = 0;
2661 }
2662
2663 ++p->count;
2664 }
2665 }
2666
2667 break;
2668 }
2669 }
2670
2671 return TRUE;
2672 }
2673
2674 static int
2675 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2676 {
2677 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2678 return STT_DATALABEL;
2679
2680 return type;
2681 }
2682
2683 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2684 Either file can presumably exist without the other, but do not differ
2685 in elf-size-ness. How to share?
2686
2687 Hook called by the linker routine which adds symbols from an object
2688 file. We must make indirect symbols for undefined symbols marked with
2689 STT_DATALABEL, so relocations passing them will pick up that attribute
2690 and neutralize STO_SH5_ISA32 found on the symbol definition.
2691
2692 There is a problem, though: We want to fill in the hash-table entry for
2693 this symbol and signal to the caller that no further processing is
2694 needed. But we don't have the index for this hash-table entry. We
2695 rely here on that the current entry is the first hash-entry with NULL,
2696 which seems brittle. Also, iterating over the hash-table to find that
2697 entry is a linear operation on the number of symbols in this input
2698 file, and this function should take constant time, so that's not good
2699 too. Only comfort is that DataLabel references should only be found in
2700 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2701 into adding an option to elf_add_symbol_hook (preferably) for the index
2702 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2703 (not so good). */
2704
2705 static bfd_boolean
2706 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2707 Elf_Internal_Sym *sym, const char **namep,
2708 flagword *flagsp ATTRIBUTE_UNUSED,
2709 asection **secp, bfd_vma *valp)
2710 {
2711 /* We want to do this for relocatable as well as final linking. */
2712 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2713 && is_elf_hash_table (info->hash))
2714 {
2715 struct elf_link_hash_entry *h;
2716
2717 /* For relocatable links, we register the DataLabel sym in its own
2718 right, and tweak the name when it's output. Otherwise, we make
2719 an indirect symbol of it. */
2720 flagword flags
2721 = bfd_link_relocatable (info) || info->emitrelocations
2722 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2723
2724 char *dl_name
2725 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2726 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2727
2728 BFD_ASSERT (sym_hash != NULL);
2729
2730 /* Allocation may fail. */
2731 if (dl_name == NULL)
2732 return FALSE;
2733
2734 strcpy (dl_name, *namep);
2735 strcat (dl_name, DATALABEL_SUFFIX);
2736
2737 h = (struct elf_link_hash_entry *)
2738 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2739
2740 if (h == NULL)
2741 {
2742 /* No previous datalabel symbol. Make one. */
2743 struct bfd_link_hash_entry *bh = NULL;
2744 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2745
2746 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2747 flags, *secp, *valp,
2748 *namep, FALSE,
2749 bed->collect, &bh))
2750 {
2751 free (dl_name);
2752 return FALSE;
2753 }
2754
2755 h = (struct elf_link_hash_entry *) bh;
2756 h->non_elf = 0;
2757 h->type = STT_DATALABEL;
2758 }
2759 else
2760 /* If a new symbol was created, it holds the allocated name.
2761 Otherwise, we don't need it anymore and should deallocate it. */
2762 free (dl_name);
2763
2764 if (h->type != STT_DATALABEL
2765 || ((bfd_link_relocatable (info) || info->emitrelocations)
2766 && h->root.type != bfd_link_hash_undefined)
2767 || (! bfd_link_relocatable (info) && !info->emitrelocations
2768 && h->root.type != bfd_link_hash_indirect))
2769 {
2770 /* Make sure we don't get confused on invalid input. */
2771 _bfd_error_handler
2772 (_("%B: encountered datalabel symbol in input"), abfd);
2773 bfd_set_error (bfd_error_bad_value);
2774 return FALSE;
2775 }
2776
2777 /* Now find the hash-table slot for this entry and fill it in. */
2778 while (*sym_hash != NULL)
2779 sym_hash++;
2780 *sym_hash = h;
2781
2782 /* Signal to caller to skip this symbol - we've handled it. */
2783 *namep = NULL;
2784 }
2785
2786 return TRUE;
2787 }
2788
2789 /* This hook function is called before the linker writes out a global
2790 symbol. For relocatable links, DataLabel symbols will be present in
2791 linker output. We cut off the special suffix on those symbols, so the
2792 right name appears in the output.
2793
2794 When linking and emitting relocations, there can appear global symbols
2795 that are not referenced by relocs, but rather only implicitly through
2796 DataLabel references, a relation that is not visible to the linker.
2797 Since no stripping of global symbols in done when doing such linking,
2798 we don't need to look up and make sure to emit the main symbol for each
2799 DataLabel symbol. */
2800
2801 static int
2802 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2803 const char *cname,
2804 Elf_Internal_Sym *sym,
2805 asection *input_sec ATTRIBUTE_UNUSED,
2806 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2807 {
2808 char *name = (char *) cname;
2809
2810 if (bfd_link_relocatable (info) || info->emitrelocations)
2811 {
2812 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2813 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2814 }
2815
2816 return 1;
2817 }
2818
2819 /* Set bit 0 on the entry address; it always points to SHmedia code. This
2820 is mostly for symmetry with the 32-bit format, where code can be
2821 SHcompact and we need to make a distinction to make sure execution
2822 starts in the right ISA mode. It is also convenient for a loader,
2823 which would otherwise have to set this bit when loading a TR register
2824 before jumping to the program entry. */
2825
2826 static void
2827 sh64_elf64_final_write_processing (bfd *abfd,
2828 bfd_boolean linker ATTRIBUTE_UNUSED)
2829 {
2830 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
2831 numerically, but we currently lack the infrastructure to recognize
2832 that: The entry symbol, and info whether it is numeric or a symbol
2833 name is kept private in the linker. */
2834 if (elf_elfheader (abfd)->e_type == ET_EXEC)
2835 elf_elfheader (abfd)->e_entry |= 1;
2836 }
2837
2838 /* First entry in an absolute procedure linkage table look like this. */
2839
2840 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
2841 {
2842 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
2843 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
2844 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
2845 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2846 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2847 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2848 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2849 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2850 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2851 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2852 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2853 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2854 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2855 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2856 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2857 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2858 };
2859
2860 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
2861 {
2862 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
2863 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
2864 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
2865 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2866 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2867 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2868 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2869 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2870 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2871 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2872 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2873 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2874 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2875 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2876 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2877 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2878 };
2879
2880 /* Sebsequent entries in an absolute procedure linkage table look like
2881 this. */
2882
2883 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
2884 {
2885 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
2886 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
2887 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
2888 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
2889 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
2890 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2891 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2892 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2893 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
2894 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
2895 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
2896 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2897 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2898 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2899 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2900 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2901 };
2902
2903 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
2904 {
2905 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
2906 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2907 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2908 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2909 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
2910 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2911 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2912 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2913 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
2914 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
2915 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
2916 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2917 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2918 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2919 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2920 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2921 };
2922
2923 /* Entries in a PIC procedure linkage table look like this. */
2924
2925 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
2926 {
2927 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
2928 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
2929 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
2930 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2931 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2932 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2933 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2934 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2935 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
2936 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
2937 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2938 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2939 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2940 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2941 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2942 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2943 };
2944
2945 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
2946 {
2947 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
2948 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
2949 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
2950 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2951 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2952 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2953 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2954 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2955 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
2956 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
2957 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2958 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2959 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2960 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2961 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2962 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2963 };
2964
2965 static const bfd_byte *elf_sh64_plt0_entry;
2966 static const bfd_byte *elf_sh64_plt_entry;
2967 static const bfd_byte *elf_sh64_pic_plt_entry;
2968
2969 /* Create an entry in an sh ELF linker hash table. */
2970
2971 static struct bfd_hash_entry *
2972 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
2973 struct bfd_hash_table *table,
2974 const char *string)
2975 {
2976 struct elf_sh64_link_hash_entry *ret =
2977 (struct elf_sh64_link_hash_entry *) entry;
2978
2979 /* Allocate the structure if it has not already been allocated by a
2980 subclass. */
2981 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
2982 ret = ((struct elf_sh64_link_hash_entry *)
2983 bfd_hash_allocate (table,
2984 sizeof (struct elf_sh64_link_hash_entry)));
2985 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
2986 return (struct bfd_hash_entry *) ret;
2987
2988 /* Call the allocation method of the superclass. */
2989 ret = ((struct elf_sh64_link_hash_entry *)
2990 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2991 table, string));
2992 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
2993 {
2994 ret->pcrel_relocs_copied = NULL;
2995 ret->datalabel_got_offset = (bfd_vma) -1;
2996 }
2997
2998 return (struct bfd_hash_entry *) ret;
2999 }
3000
3001 /* Create an sh64 ELF linker hash table. */
3002
3003 static struct bfd_link_hash_table *
3004 sh64_elf64_link_hash_table_create (bfd *abfd)
3005 {
3006 struct elf_link_hash_table *ret;
3007
3008 ret = (struct elf_link_hash_table *) bfd_zmalloc (sizeof (* ret));
3009 if (ret == (struct elf_link_hash_table *) NULL)
3010 return NULL;
3011
3012 if (!_bfd_elf_link_hash_table_init (ret, abfd,
3013 sh64_elf64_link_hash_newfunc,
3014 sizeof (struct elf_sh64_link_hash_entry),
3015 GENERIC_ELF_DATA))
3016 {
3017 free (ret);
3018 return NULL;
3019 }
3020
3021 return &ret->root;
3022 }
3023
3024 inline static void
3025 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
3026 {
3027 bfd_put_32 (output_bfd,
3028 bfd_get_32 (output_bfd, addr)
3029 | ((value >> 6) & 0x3fffc00),
3030 addr);
3031 bfd_put_32 (output_bfd,
3032 bfd_get_32 (output_bfd, addr + 4)
3033 | ((value << 10) & 0x3fffc00),
3034 addr + 4);
3035 }
3036
3037 inline static void
3038 movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr)
3039 {
3040 bfd_put_32 (output_bfd,
3041 bfd_get_32 (output_bfd, addr)
3042 | ((value >> 38) & 0x3fffc00),
3043 addr);
3044 bfd_put_32 (output_bfd,
3045 bfd_get_32 (output_bfd, addr + 4)
3046 | ((value >> 22) & 0x3fffc00),
3047 addr + 4);
3048 bfd_put_32 (output_bfd,
3049 bfd_get_32 (output_bfd, addr + 8)
3050 | ((value >> 6) & 0x3fffc00),
3051 addr + 8);
3052 bfd_put_32 (output_bfd,
3053 bfd_get_32 (output_bfd, addr + 12)
3054 | ((value << 10) & 0x3fffc00),
3055 addr + 12);
3056 }
3057
3058 /* Create dynamic sections when linking against a dynamic object. */
3059
3060 static bfd_boolean
3061 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3062 {
3063 flagword flags, pltflags;
3064 register asection *s;
3065 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3066 int ptralign = 0;
3067
3068 switch (bed->s->arch_size)
3069 {
3070 case 32:
3071 ptralign = 2;
3072 break;
3073
3074 case 64:
3075 ptralign = 3;
3076 break;
3077
3078 default:
3079 bfd_set_error (bfd_error_bad_value);
3080 return FALSE;
3081 }
3082
3083 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3084 .rel[a].bss sections. */
3085
3086 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3087 | SEC_LINKER_CREATED);
3088
3089 pltflags = flags;
3090 pltflags |= SEC_CODE;
3091 if (bed->plt_not_loaded)
3092 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3093 if (bed->plt_readonly)
3094 pltflags |= SEC_READONLY;
3095
3096 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
3097 if (s == NULL
3098 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3099 return FALSE;
3100
3101 if (bed->want_plt_sym)
3102 {
3103 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3104 .plt section. */
3105 struct elf_link_hash_entry *h;
3106 struct bfd_link_hash_entry *bh = NULL;
3107
3108 if (! (_bfd_generic_link_add_one_symbol
3109 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3110 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3111 return FALSE;
3112
3113 h = (struct elf_link_hash_entry *) bh;
3114 h->def_regular = 1;
3115 h->type = STT_OBJECT;
3116 elf_hash_table (info)->hplt = h;
3117
3118 if (bfd_link_pic (info)
3119 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3120 return FALSE;
3121 }
3122
3123 s = bfd_make_section_anyway_with_flags (abfd,
3124 bed->default_use_rela_p
3125 ? ".rela.plt" : ".rel.plt",
3126 flags | SEC_READONLY);
3127 if (s == NULL
3128 || ! bfd_set_section_alignment (abfd, s, ptralign))
3129 return FALSE;
3130
3131 if (! _bfd_elf_create_got_section (abfd, info))
3132 return FALSE;
3133
3134 if (bed->want_dynbss)
3135 {
3136 /* The .dynbss section is a place to put symbols which are defined
3137 by dynamic objects, are referenced by regular objects, and are
3138 not functions. We must allocate space for them in the process
3139 image and use a R_*_COPY reloc to tell the dynamic linker to
3140 initialize them at run time. The linker script puts the .dynbss
3141 section into the .bss section of the final image. */
3142 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3143 SEC_ALLOC | SEC_LINKER_CREATED);
3144 if (s == NULL)
3145 return FALSE;
3146
3147 /* The .rel[a].bss section holds copy relocs. This section is not
3148 normally needed. We need to create it here, though, so that the
3149 linker will map it to an output section. We can't just create it
3150 only if we need it, because we will not know whether we need it
3151 until we have seen all the input files, and the first time the
3152 main linker code calls BFD after examining all the input files
3153 (size_dynamic_sections) the input sections have already been
3154 mapped to the output sections. If the section turns out not to
3155 be needed, we can discard it later. We will never need this
3156 section when generating a shared object, since they do not use
3157 copy relocs. */
3158 if (! bfd_link_pic (info))
3159 {
3160 s = bfd_make_section_anyway_with_flags (abfd,
3161 (bed->default_use_rela_p
3162 ? ".rela.bss" : ".rel.bss"),
3163 flags | SEC_READONLY);
3164 if (s == NULL
3165 || ! bfd_set_section_alignment (abfd, s, ptralign))
3166 return FALSE;
3167 }
3168 }
3169
3170 return TRUE;
3171 }
3172 \f
3173 /* Adjust a symbol defined by a dynamic object and referenced by a
3174 regular object. The current definition is in some section of the
3175 dynamic object, but we're not including those sections. We have to
3176 change the definition to something the rest of the link can
3177 understand. */
3178
3179 static bfd_boolean
3180 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3181 struct elf_link_hash_entry *h)
3182 {
3183 bfd *dynobj;
3184 asection *s;
3185
3186 dynobj = elf_hash_table (info)->dynobj;
3187
3188 /* Make sure we know what is going on here. */
3189 BFD_ASSERT (dynobj != NULL
3190 && (h->needs_plt
3191 || h->is_weakalias
3192 || (h->def_dynamic
3193 && h->ref_regular
3194 && !h->def_regular)));
3195
3196 /* If this is a function, put it in the procedure linkage table. We
3197 will fill in the contents of the procedure linkage table later,
3198 when we know the address of the .got section. */
3199 if (h->type == STT_FUNC
3200 || h->needs_plt)
3201 {
3202 if (! bfd_link_pic (info)
3203 && !h->def_dynamic
3204 && !h->ref_dynamic)
3205 {
3206 /* This case can occur if we saw a PLT reloc in an input
3207 file, but the symbol was never referred to by a dynamic
3208 object. In such a case, we don't actually need to build
3209 a procedure linkage table, and we can just do a REL64
3210 reloc instead. */
3211 BFD_ASSERT (h->needs_plt);
3212 return TRUE;
3213 }
3214
3215 /* Make sure this symbol is output as a dynamic symbol. */
3216 if (h->dynindx == -1)
3217 {
3218 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3219 return FALSE;
3220 }
3221
3222 s = elf_hash_table (info)->splt;
3223 BFD_ASSERT (s != NULL);
3224
3225 /* If this is the first .plt entry, make room for the special
3226 first entry. */
3227 if (s->size == 0)
3228 s->size += PLT_ENTRY_SIZE;
3229
3230 /* If this symbol is not defined in a regular file, and we are
3231 not generating a shared library, then set the symbol to this
3232 location in the .plt. This is required to make function
3233 pointers compare as equal between the normal executable and
3234 the shared library. */
3235 if (! bfd_link_pic (info)
3236 && !h->def_regular)
3237 {
3238 h->root.u.def.section = s;
3239 h->root.u.def.value = s->size;
3240 }
3241
3242 h->plt.offset = s->size;
3243
3244 /* Make room for this entry. */
3245 s->size += elf_sh64_sizeof_plt (info);
3246
3247 /* We also need to make an entry in the .got.plt section, which
3248 will be placed in the .got section by the linker script. */
3249
3250 s = elf_hash_table (info)->sgotplt;
3251 BFD_ASSERT (s != NULL);
3252 s->size += 8;
3253
3254 /* We also need to make an entry in the .rela.plt section. */
3255
3256 s = elf_hash_table (info)->srelplt;
3257 BFD_ASSERT (s != NULL);
3258 s->size += sizeof (Elf64_External_Rela);
3259
3260 return TRUE;
3261 }
3262
3263 /* If this is a weak symbol, and there is a real definition, the
3264 processor independent code will have arranged for us to see the
3265 real definition first, and we can just use the same value. */
3266 if (h->is_weakalias)
3267 {
3268 struct elf_link_hash_entry *def = weakdef (h);
3269 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
3270 h->root.u.def.section = def->root.u.def.section;
3271 h->root.u.def.value = def->root.u.def.value;
3272 return TRUE;
3273 }
3274
3275 /* This is a reference to a symbol defined by a dynamic object which
3276 is not a function. */
3277
3278 /* If we are creating a shared library, we must presume that the
3279 only references to the symbol are via the global offset table.
3280 For such cases we need not do anything here; the relocations will
3281 be handled correctly by relocate_section. */
3282 if (bfd_link_pic (info))
3283 return TRUE;
3284
3285 /* If there are no references to this symbol that do not use the
3286 GOT, we don't need to generate a copy reloc. */
3287 if (!h->non_got_ref)
3288 return TRUE;
3289
3290 /* We must allocate the symbol in our .dynbss section, which will
3291 become part of the .bss section of the executable. There will be
3292 an entry for this symbol in the .dynsym section. The dynamic
3293 object will contain position independent code, so all references
3294 from the dynamic object to this symbol will go through the global
3295 offset table. The dynamic linker will use the .dynsym entry to
3296 determine the address it must put in the global offset table, so
3297 both the dynamic object and the regular object will refer to the
3298 same memory location for the variable. */
3299
3300 s = bfd_get_linker_section (dynobj, ".dynbss");
3301 BFD_ASSERT (s != NULL);
3302
3303 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3304 copy the initial value out of the dynamic object and into the
3305 runtime process image. We need to remember the offset into the
3306 .rela.bss section we are going to use. */
3307 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
3308 {
3309 asection *srel;
3310
3311 srel = bfd_get_linker_section (dynobj, ".rela.bss");
3312 BFD_ASSERT (srel != NULL);
3313 srel->size += sizeof (Elf64_External_Rela);
3314 h->needs_copy = 1;
3315 }
3316
3317 return _bfd_elf_adjust_dynamic_copy (info, h, s);
3318 }
3319
3320 /* This function is called via sh_elf_link_hash_traverse if we are
3321 creating a shared object with -Bsymbolic. It discards the space
3322 allocated to copy PC relative relocs against symbols which are
3323 defined in regular objects. We allocated space for them in the
3324 check_relocs routine, but we won't fill them in in the
3325 relocate_section routine. */
3326
3327 static bfd_boolean
3328 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3329 void *ignore ATTRIBUTE_UNUSED)
3330 {
3331 struct elf_sh64_pcrel_relocs_copied *s;
3332
3333 /* We only discard relocs for symbols defined in a regular object. */
3334 if (!h->root.def_regular)
3335 return TRUE;
3336
3337 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3338 s->section->size -= s->count * sizeof (Elf64_External_Rela);
3339
3340 return TRUE;
3341 }
3342
3343 /* Set the sizes of the dynamic sections. */
3344
3345 static bfd_boolean
3346 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3347 struct bfd_link_info *info)
3348 {
3349 bfd *dynobj;
3350 asection *s;
3351 bfd_boolean plt;
3352 bfd_boolean relocs;
3353 bfd_boolean reltext;
3354
3355 dynobj = elf_hash_table (info)->dynobj;
3356 BFD_ASSERT (dynobj != NULL);
3357
3358 if (elf_hash_table (info)->dynamic_sections_created)
3359 {
3360 /* Set the contents of the .interp section to the interpreter. */
3361 if (bfd_link_executable (info) && !info->nointerp)
3362 {
3363 s = bfd_get_linker_section (dynobj, ".interp");
3364 BFD_ASSERT (s != NULL);
3365 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3366 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3367 }
3368 }
3369 else
3370 {
3371 /* We may have created entries in the .rela.got section.
3372 However, if we are not creating the dynamic sections, we will
3373 not actually use these entries. Reset the size of .rela.got,
3374 which will cause it to get stripped from the output file
3375 below. */
3376 s = elf_hash_table (info)->srelgot;
3377 if (s != NULL)
3378 s->size = 0;
3379 }
3380
3381 /* If this is a -Bsymbolic shared link, then we need to discard all
3382 PC relative relocs against symbols defined in a regular object.
3383 We allocated space for them in the check_relocs routine, but we
3384 will not fill them in in the relocate_section routine. */
3385 if (bfd_link_pic (info) && info->symbolic)
3386 sh64_elf64_link_hash_traverse (elf_hash_table (info),
3387 sh64_elf64_discard_copies, NULL);
3388
3389 /* The check_relocs and adjust_dynamic_symbol entry points have
3390 determined the sizes of the various dynamic sections. Allocate
3391 memory for them. */
3392 plt = FALSE;
3393 relocs = FALSE;
3394 reltext = FALSE;
3395 for (s = dynobj->sections; s != NULL; s = s->next)
3396 {
3397 const char *name;
3398
3399 if ((s->flags & SEC_LINKER_CREATED) == 0)
3400 continue;
3401
3402 /* It's OK to base decisions on the section name, because none
3403 of the dynobj section names depend upon the input files. */
3404 name = bfd_get_section_name (dynobj, s);
3405
3406 if (strcmp (name, ".plt") == 0)
3407 {
3408 /* Remember whether there is a PLT. */
3409 plt = s->size != 0;
3410 }
3411 else if (CONST_STRNEQ (name, ".rela"))
3412 {
3413 if (s->size != 0)
3414 {
3415 asection *target;
3416
3417 /* Remember whether there are any reloc sections other
3418 than .rela.plt. */
3419 if (strcmp (name, ".rela.plt") != 0)
3420 {
3421 const char *outname;
3422
3423 relocs = TRUE;
3424
3425 /* If this relocation section applies to a read only
3426 section, then we probably need a DT_TEXTREL
3427 entry. The entries in the .rela.plt section
3428 really apply to the .got section, which we
3429 created ourselves and so know is not readonly. */
3430 outname = bfd_get_section_name (output_bfd,
3431 s->output_section);
3432 target = bfd_get_section_by_name (output_bfd, outname + 5);
3433 if (target != NULL
3434 && (target->flags & SEC_READONLY) != 0
3435 && (target->flags & SEC_ALLOC) != 0)
3436 reltext = TRUE;
3437 }
3438
3439 /* We use the reloc_count field as a counter if we need
3440 to copy relocs into the output file. */
3441 s->reloc_count = 0;
3442 }
3443 }
3444 else if (! CONST_STRNEQ (name, ".got")
3445 && strcmp (name, ".dynbss") != 0)
3446 {
3447 /* It's not one of our sections, so don't allocate space. */
3448 continue;
3449 }
3450
3451 if (s->size == 0)
3452 {
3453 /* If we don't need this section, strip it from the
3454 output file. This is mostly to handle .rela.bss and
3455 .rela.plt. We must create both sections in
3456 create_dynamic_sections, because they must be created
3457 before the linker maps input sections to output
3458 sections. The linker does that before
3459 adjust_dynamic_symbol is called, and it is that
3460 function which decides whether anything needs to go
3461 into these sections. */
3462 s->flags |= SEC_EXCLUDE;
3463 continue;
3464 }
3465
3466 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3467 continue;
3468
3469 /* Allocate memory for the section contents. */
3470 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3471 if (s->contents == NULL)
3472 return FALSE;
3473 }
3474
3475 if (elf_hash_table (info)->dynamic_sections_created)
3476 {
3477 /* Add some entries to the .dynamic section. We fill in the
3478 values later, in sh64_elf64_finish_dynamic_sections, but we
3479 must add the entries now so that we get the correct size for
3480 the .dynamic section. The DT_DEBUG entry is filled in by the
3481 dynamic linker and used by the debugger. */
3482 if (bfd_link_executable (info))
3483 {
3484 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3485 return FALSE;
3486 }
3487
3488 if (plt)
3489 {
3490 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3491 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3492 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3493 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3494 return FALSE;
3495 }
3496
3497 if (relocs)
3498 {
3499 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3500 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3501 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3502 sizeof (Elf64_External_Rela)))
3503 return FALSE;
3504 }
3505
3506 if (reltext)
3507 {
3508 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3509 return FALSE;
3510 }
3511 }
3512
3513 return TRUE;
3514 }
3515
3516 /* Finish up dynamic symbol handling. We set the contents of various
3517 dynamic sections here. */
3518
3519 static bfd_boolean
3520 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3521 struct bfd_link_info *info,
3522 struct elf_link_hash_entry *h,
3523 Elf_Internal_Sym *sym)
3524 {
3525 bfd *dynobj;
3526
3527 dynobj = elf_hash_table (info)->dynobj;
3528
3529 if (h->plt.offset != (bfd_vma) -1)
3530 {
3531 asection *splt;
3532 asection *sgot;
3533 asection *srel;
3534
3535 bfd_vma plt_index;
3536 bfd_vma got_offset;
3537 Elf_Internal_Rela rel;
3538 bfd_byte *loc;
3539
3540 /* This symbol has an entry in the procedure linkage table. Set
3541 it up. */
3542
3543 BFD_ASSERT (h->dynindx != -1);
3544
3545 splt = elf_hash_table (info)->splt;
3546 sgot = elf_hash_table (info)->sgotplt;
3547 srel = elf_hash_table (info)->srelplt;
3548 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3549
3550 /* Get the index in the procedure linkage table which
3551 corresponds to this symbol. This is the index of this symbol
3552 in all the symbols for which we are making plt entries. The
3553 first entry in the procedure linkage table is reserved. */
3554 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3555
3556 /* Get the offset into the .got table of the entry that
3557 corresponds to this function. Each .got entry is 8 bytes.
3558 The first three are reserved. */
3559 got_offset = (plt_index + 3) * 8;
3560
3561 if (bfd_link_pic (info))
3562 got_offset -= GOT_BIAS;
3563
3564 /* Fill in the entry in the procedure linkage table. */
3565 if (! bfd_link_pic (info))
3566 {
3567 if (elf_sh64_plt_entry == NULL)
3568 {
3569 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3570 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3571 }
3572 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3573 elf_sh64_sizeof_plt (info));
3574 movi_3shori_putval (output_bfd,
3575 (sgot->output_section->vma
3576 + sgot->output_offset
3577 + got_offset),
3578 (splt->contents + h->plt.offset
3579 + elf_sh64_plt_symbol_offset (info)));
3580
3581 /* Set bottom bit because its for a branch to SHmedia */
3582 movi_shori_putval (output_bfd,
3583 -(h->plt.offset
3584 + elf_sh64_plt_plt0_offset (info) + 8)
3585 | 1,
3586 (splt->contents + h->plt.offset
3587 + elf_sh64_plt_plt0_offset (info)));
3588 }
3589 else
3590 {
3591 if (elf_sh64_pic_plt_entry == NULL)
3592 {
3593 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3594 elf_sh64_pic_plt_entry_be :
3595 elf_sh64_pic_plt_entry_le);
3596 }
3597 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3598 elf_sh64_sizeof_plt (info));
3599 movi_shori_putval (output_bfd, got_offset,
3600 (splt->contents + h->plt.offset
3601 + elf_sh64_plt_symbol_offset (info)));
3602 }
3603
3604 if (bfd_link_pic (info))
3605 got_offset += GOT_BIAS;
3606
3607 movi_shori_putval (output_bfd,
3608 plt_index * sizeof (Elf64_External_Rela),
3609 (splt->contents + h->plt.offset
3610 + elf_sh64_plt_reloc_offset (info)));
3611
3612 /* Fill in the entry in the global offset table. */
3613 bfd_put_64 (output_bfd,
3614 (splt->output_section->vma
3615 + splt->output_offset
3616 + h->plt.offset
3617 + elf_sh64_plt_temp_offset (info)),
3618 sgot->contents + got_offset);
3619
3620 /* Fill in the entry in the .rela.plt section. */
3621 rel.r_offset = (sgot->output_section->vma
3622 + sgot->output_offset
3623 + got_offset);
3624 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3625 rel.r_addend = 0;
3626 rel.r_addend = GOT_BIAS;
3627 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3628 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3629
3630 if (!h->def_regular)
3631 {
3632 /* Mark the symbol as undefined, rather than as defined in
3633 the .plt section. Leave the value alone. */
3634 sym->st_shndx = SHN_UNDEF;
3635 }
3636 }
3637
3638 if (h->got.offset != (bfd_vma) -1)
3639 {
3640 asection *sgot;
3641 asection *srel;
3642 Elf_Internal_Rela rel;
3643 bfd_byte *loc;
3644
3645 /* This symbol has an entry in the global offset table. Set it
3646 up. */
3647
3648 sgot = elf_hash_table (info)->sgot;
3649 srel = elf_hash_table (info)->srelgot;
3650 BFD_ASSERT (sgot != NULL && srel != NULL);
3651
3652 rel.r_offset = (sgot->output_section->vma
3653 + sgot->output_offset
3654 + (h->got.offset &~ 1));
3655
3656 /* If this is a -Bsymbolic link, and the symbol is defined
3657 locally, we just want to emit a RELATIVE reloc. Likewise if
3658 the symbol was forced to be local because of a version file.
3659 The entry in the global offset table will already have been
3660 initialized in the relocate_section function. */
3661 if (bfd_link_pic (info)
3662 && (info->symbolic || h->dynindx == -1)
3663 && h->def_regular)
3664 {
3665 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3666 rel.r_addend = (h->root.u.def.value
3667 + h->root.u.def.section->output_section->vma
3668 + h->root.u.def.section->output_offset);
3669 }
3670 else
3671 {
3672 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3673 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3674 rel.r_addend = 0;
3675 }
3676
3677 loc = srel->contents;
3678 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3679 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3680 }
3681
3682 if (h->needs_copy)
3683 {
3684 asection *s;
3685 Elf_Internal_Rela rel;
3686 bfd_byte *loc;
3687
3688 /* This symbol needs a copy reloc. Set it up. */
3689
3690 BFD_ASSERT (h->dynindx != -1
3691 && (h->root.type == bfd_link_hash_defined
3692 || h->root.type == bfd_link_hash_defweak));
3693
3694 s = bfd_get_linker_section (dynobj, ".rela.bss");
3695 BFD_ASSERT (s != NULL);
3696
3697 rel.r_offset = (h->root.u.def.value
3698 + h->root.u.def.section->output_section->vma
3699 + h->root.u.def.section->output_offset);
3700 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3701 rel.r_addend = 0;
3702 loc = s->contents;
3703 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3704 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3705 }
3706
3707 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3708 if (h == elf_hash_table (info)->hdynamic
3709 || h == elf_hash_table (info)->hgot)
3710 sym->st_shndx = SHN_ABS;
3711
3712 return TRUE;
3713 }
3714
3715 /* Finish up the dynamic sections. */
3716
3717 static bfd_boolean
3718 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3719 struct bfd_link_info *info)
3720 {
3721 bfd *dynobj;
3722 asection *sgot;
3723 asection *sdyn;
3724
3725 dynobj = elf_hash_table (info)->dynobj;
3726
3727 sgot = elf_hash_table (info)->sgotplt;
3728 BFD_ASSERT (sgot != NULL);
3729 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3730
3731 if (elf_hash_table (info)->dynamic_sections_created)
3732 {
3733 asection *splt;
3734 Elf64_External_Dyn *dyncon, *dynconend;
3735
3736 BFD_ASSERT (sdyn != NULL);
3737
3738 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3739 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3740 for (; dyncon < dynconend; dyncon++)
3741 {
3742 Elf_Internal_Dyn dyn;
3743 const char *name;
3744 asection *s;
3745 struct elf_link_hash_entry *h;
3746
3747 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3748
3749 switch (dyn.d_tag)
3750 {
3751 default:
3752 break;
3753
3754 case DT_INIT:
3755 name = info->init_function;
3756 goto get_sym;
3757
3758 case DT_FINI:
3759 name = info->fini_function;
3760 get_sym:
3761 if (dyn.d_un.d_val != 0)
3762 {
3763 h = elf_link_hash_lookup (elf_hash_table (info), name,
3764 FALSE, FALSE, TRUE);
3765 if (h != NULL && (h->other & STO_SH5_ISA32))
3766 {
3767 dyn.d_un.d_val |= 1;
3768 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3769 }
3770 }
3771 break;
3772
3773 case DT_PLTGOT:
3774 s = elf_hash_table (info)->sgotplt;
3775 goto get_vma;
3776
3777 case DT_JMPREL:
3778 s = elf_hash_table (info)->srelplt;
3779 get_vma:
3780 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3781 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3782 break;
3783
3784 case DT_PLTRELSZ:
3785 s = elf_hash_table (info)->srelplt;
3786 dyn.d_un.d_val = s->size;
3787 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3788 break;
3789 }
3790 }
3791
3792 /* Fill in the first entry in the procedure linkage table. */
3793 splt = elf_hash_table (info)->splt;
3794 if (splt && splt->size > 0)
3795 {
3796 if (bfd_link_pic (info))
3797 {
3798 if (elf_sh64_pic_plt_entry == NULL)
3799 {
3800 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3801 elf_sh64_pic_plt_entry_be :
3802 elf_sh64_pic_plt_entry_le);
3803 }
3804 memcpy (splt->contents, elf_sh64_pic_plt_entry,
3805 elf_sh64_sizeof_plt (info));
3806 }
3807 else
3808 {
3809 if (elf_sh64_plt0_entry == NULL)
3810 {
3811 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
3812 elf_sh64_plt0_entry_be :
3813 elf_sh64_plt0_entry_le);
3814 }
3815 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
3816 movi_3shori_putval (output_bfd,
3817 sgot->output_section->vma
3818 + sgot->output_offset,
3819 splt->contents
3820 + elf_sh64_plt0_gotplt_offset (info));
3821 }
3822
3823 /* UnixWare sets the entsize of .plt to 8, although that doesn't
3824 really seem like the right value. */
3825 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
3826 }
3827 }
3828
3829 /* Fill in the first three entries in the global offset table. */
3830 if (sgot->size > 0)
3831 {
3832 if (sdyn == NULL)
3833 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
3834 else
3835 bfd_put_64 (output_bfd,
3836 sdyn->output_section->vma + sdyn->output_offset,
3837 sgot->contents);
3838 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3839 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
3840 }
3841
3842 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
3843
3844 return TRUE;
3845 }
3846
3847 /* Merge non visibility st_other attribute when the symbol comes from
3848 a dynamic object. */
3849 static void
3850 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
3851 const Elf_Internal_Sym *isym,
3852 bfd_boolean definition,
3853 bfd_boolean dynamic ATTRIBUTE_UNUSED)
3854 {
3855 if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0)
3856 {
3857 unsigned char other;
3858
3859 /* Take the balance of OTHER from the definition. */
3860 other = (definition ? isym->st_other : h->other);
3861 other &= ~ ELF_ST_VISIBILITY (-1);
3862 h->other = other | ELF_ST_VISIBILITY (h->other);
3863 }
3864
3865 return;
3866 }
3867
3868 static const struct bfd_elf_special_section sh64_elf64_special_sections[]=
3869 {
3870 { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 },
3871 { NULL, 0, 0, 0, 0 }
3872 };
3873
3874 #define TARGET_BIG_SYM sh64_elf64_vec
3875 #define TARGET_BIG_NAME "elf64-sh64"
3876 #define TARGET_LITTLE_SYM sh64_elf64_le_vec
3877 #define TARGET_LITTLE_NAME "elf64-sh64l"
3878 #define ELF_ARCH bfd_arch_sh
3879 #define ELF_MACHINE_CODE EM_SH
3880 #define ELF_MAXPAGESIZE 128
3881
3882 #define elf_symbol_leading_char '_'
3883
3884 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
3885 #define bfd_elf64_bfd_reloc_name_lookup \
3886 sh_elf64_reloc_name_lookup
3887 #define elf_info_to_howto sh_elf64_info_to_howto
3888
3889 /* Note: there's no relaxation at present. */
3890
3891 #define elf_backend_relocate_section sh_elf64_relocate_section
3892 #define bfd_elf64_bfd_get_relocated_section_contents \
3893 sh_elf64_get_relocated_section_contents
3894 #define elf_backend_object_p sh_elf64_set_mach_from_flags
3895 #define bfd_elf64_bfd_set_private_flags \
3896 sh_elf64_set_private_flags
3897 #define bfd_elf64_bfd_copy_private_bfd_data \
3898 sh_elf64_copy_private_data
3899 #define bfd_elf64_bfd_merge_private_bfd_data \
3900 sh_elf64_merge_private_data
3901 #define elf_backend_fake_sections sh64_elf64_fake_sections
3902
3903 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
3904 #define elf_backend_check_relocs sh_elf64_check_relocs
3905
3906 #define elf_backend_can_gc_sections 1
3907
3908 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
3909
3910 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
3911
3912 #define elf_backend_link_output_symbol_hook \
3913 sh64_elf64_link_output_symbol_hook
3914
3915 #define elf_backend_merge_symbol_attribute \
3916 sh64_elf64_merge_symbol_attribute
3917
3918 #define elf_backend_final_write_processing \
3919 sh64_elf64_final_write_processing
3920
3921 #define elf_backend_create_dynamic_sections \
3922 sh64_elf64_create_dynamic_sections
3923 #define bfd_elf64_bfd_link_hash_table_create \
3924 sh64_elf64_link_hash_table_create
3925 #define elf_backend_adjust_dynamic_symbol \
3926 sh64_elf64_adjust_dynamic_symbol
3927 #define elf_backend_size_dynamic_sections \
3928 sh64_elf64_size_dynamic_sections
3929 #define elf_backend_omit_section_dynsym \
3930 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
3931 #define elf_backend_finish_dynamic_symbol \
3932 sh64_elf64_finish_dynamic_symbol
3933 #define elf_backend_finish_dynamic_sections \
3934 sh64_elf64_finish_dynamic_sections
3935 #define elf_backend_special_sections sh64_elf64_special_sections
3936
3937 #define elf_backend_want_got_plt 1
3938 #define elf_backend_plt_readonly 1
3939 #define elf_backend_want_plt_sym 0
3940 #define elf_backend_got_header_size 24
3941 #define elf_backend_dtrel_excludes_plt 1
3942
3943 #define elf_backend_linux_prpsinfo64_ugid16 TRUE
3944
3945 #include "elf64-target.h"
3946
3947 /* NetBSD support. */
3948 #undef TARGET_BIG_SYM
3949 #define TARGET_BIG_SYM sh64_elf64_nbsd_vec
3950 #undef TARGET_BIG_NAME
3951 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
3952 #undef TARGET_LITTLE_SYM
3953 #define TARGET_LITTLE_SYM sh64_elf64_nbsd_le_vec
3954 #undef TARGET_LITTLE_NAME
3955 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
3956 #undef ELF_MAXPAGESIZE
3957 #define ELF_MAXPAGESIZE 0x10000
3958 #undef elf_symbol_leading_char
3959 #define elf_symbol_leading_char 0
3960
3961 #define elf64_bed elf64_sh64_nbsd_bed
3962
3963 #include "elf64-target.h"
3964
3965 /* Linux support. */
3966 #undef TARGET_BIG_SYM
3967 #define TARGET_BIG_SYM sh64_elf64_linux_be_vec
3968 #undef TARGET_BIG_NAME
3969 #define TARGET_BIG_NAME "elf64-sh64big-linux"
3970 #undef TARGET_LITTLE_SYM
3971 #define TARGET_LITTLE_SYM sh64_elf64_linux_vec
3972 #undef TARGET_LITTLE_NAME
3973 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
3974 #undef elf64_bed
3975 #define elf64_bed elf64_sh64_linux_bed
3976
3977 #include "elf64-target.h"
GDB Binutils - Deliverables
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