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[binutils-gdb.git] / bfd / elf64-sh64.c
blob8994e21daffd7246b5a385766bfcb19894e3ac53
1 /* SuperH SH64-specific support for 64-bit ELF
2 Copyright (C) 2000-2017 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 /* PR15323, ref flags aren't set for references in the same
2386 object. */
2387 h->root.non_ir_ref_regular = 1;
2388 }
2389
2390 /* Some relocs require a global offset table. */
2391 if (dynobj == NULL)
2392 {
2393 switch (ELF64_R_TYPE (rel->r_info))
2394 {
2395 case R_SH_GOTPLT_LOW16:
2396 case R_SH_GOTPLT_MEDLOW16:
2397 case R_SH_GOTPLT_MEDHI16:
2398 case R_SH_GOTPLT_HI16:
2399 case R_SH_GOTPLT10BY4:
2400 case R_SH_GOTPLT10BY8:
2401 case R_SH_GOT_LOW16:
2402 case R_SH_GOT_MEDLOW16:
2403 case R_SH_GOT_MEDHI16:
2404 case R_SH_GOT_HI16:
2405 case R_SH_GOT10BY4:
2406 case R_SH_GOT10BY8:
2407 case R_SH_GOTOFF_LOW16:
2408 case R_SH_GOTOFF_MEDLOW16:
2409 case R_SH_GOTOFF_MEDHI16:
2410 case R_SH_GOTOFF_HI16:
2411 case R_SH_GOTPC_LOW16:
2412 case R_SH_GOTPC_MEDLOW16:
2413 case R_SH_GOTPC_MEDHI16:
2414 case R_SH_GOTPC_HI16:
2415 elf_hash_table (info)->dynobj = dynobj = abfd;
2416 if (! _bfd_elf_create_got_section (dynobj, info))
2417 return FALSE;
2418 break;
2419
2420 default:
2421 break;
2422 }
2423 }
2424
2425 switch (ELF64_R_TYPE (rel->r_info))
2426 {
2427 /* This relocation describes the C++ object vtable hierarchy.
2428 Reconstruct it for later use during GC. */
2429 case R_SH_GNU_VTINHERIT:
2430 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2431 return FALSE;
2432 break;
2433
2434 /* This relocation describes which C++ vtable entries are actually
2435 used. Record for later use during GC. */
2436 case R_SH_GNU_VTENTRY:
2437 BFD_ASSERT (h != NULL);
2438 if (h != NULL
2439 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2440 return FALSE;
2441 break;
2442
2443 force_got:
2444 case R_SH_GOT_LOW16:
2445 case R_SH_GOT_MEDLOW16:
2446 case R_SH_GOT_MEDHI16:
2447 case R_SH_GOT_HI16:
2448 case R_SH_GOT10BY4:
2449 case R_SH_GOT10BY8:
2450 /* This symbol requires a global offset table entry. */
2451
2452 sgot = elf_hash_table (info)->sgot;
2453 srelgot = elf_hash_table (info)->srelgot;
2454 BFD_ASSERT (sgot != NULL && srelgot != NULL);
2455
2456 if (h != NULL)
2457 {
2458 if (h->type == STT_DATALABEL)
2459 {
2460 struct elf_sh64_link_hash_entry *hsh;
2461
2462 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2463 hsh = (struct elf_sh64_link_hash_entry *)h;
2464 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2465 break;
2466
2467 hsh->datalabel_got_offset = sgot->size;
2468 }
2469 else
2470 {
2471 if (h->got.offset != (bfd_vma) -1)
2472 {
2473 /* We have already allocated space in the .got. */
2474 break;
2475 }
2476 h->got.offset = sgot->size;
2477 }
2478
2479 /* Make sure this symbol is output as a dynamic symbol. */
2480 if (h->dynindx == -1)
2481 {
2482 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2483 return FALSE;
2484 }
2485
2486 srelgot->size += sizeof (Elf64_External_Rela);
2487 }
2488 else
2489 {
2490 /* This is a global offset table entry for a local
2491 symbol. */
2492 if (local_got_offsets == NULL)
2493 {
2494 size_t size;
2495 register unsigned int i;
2496
2497 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2498 /* Reserve space for both the datalabel and
2499 codelabel local GOT offsets. */
2500 size *= 2;
2501 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2502 if (local_got_offsets == NULL)
2503 return FALSE;
2504 elf_local_got_offsets (abfd) = local_got_offsets;
2505 for (i = 0; i < symtab_hdr->sh_info; i++)
2506 local_got_offsets[i] = (bfd_vma) -1;
2507 for (; i < 2 * symtab_hdr->sh_info; i++)
2508 local_got_offsets[i] = (bfd_vma) -1;
2509 }
2510 if ((rel->r_addend & 1) != 0)
2511 {
2512 if (local_got_offsets[symtab_hdr->sh_info
2513 + r_symndx] != (bfd_vma) -1)
2514 {
2515 /* We have already allocated space in the .got. */
2516 break;
2517 }
2518 local_got_offsets[symtab_hdr->sh_info
2519 + r_symndx] = sgot->size;
2520 }
2521 else
2522 {
2523 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2524 {
2525 /* We have already allocated space in the .got. */
2526 break;
2527 }
2528 local_got_offsets[r_symndx] = sgot->size;
2529 }
2530
2531 if (bfd_link_pic (info))
2532 {
2533 /* If we are generating a shared object, we need to
2534 output a R_SH_RELATIVE reloc so that the dynamic
2535 linker can adjust this GOT entry. */
2536 srelgot->size += sizeof (Elf64_External_Rela);
2537 }
2538 }
2539
2540 sgot->size += 8;
2541
2542 break;
2543
2544 case R_SH_GOTPLT_LOW16:
2545 case R_SH_GOTPLT_MEDLOW16:
2546 case R_SH_GOTPLT_MEDHI16:
2547 case R_SH_GOTPLT_HI16:
2548 case R_SH_GOTPLT10BY4:
2549 case R_SH_GOTPLT10BY8:
2550 /* If this is a local symbol, we resolve it directly without
2551 creating a procedure linkage table entry. */
2552
2553 if (h == NULL
2554 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2555 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2556 || ! bfd_link_pic (info)
2557 || info->symbolic
2558 || h->dynindx == -1
2559 || h->got.offset != (bfd_vma) -1)
2560 goto force_got;
2561
2562 /* Make sure this symbol is output as a dynamic symbol. */
2563 if (h->dynindx == -1)
2564 {
2565 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2566 return FALSE;
2567 }
2568
2569 h->needs_plt = 1;
2570
2571 break;
2572
2573 case R_SH_PLT_LOW16:
2574 case R_SH_PLT_MEDLOW16:
2575 case R_SH_PLT_MEDHI16:
2576 case R_SH_PLT_HI16:
2577 /* This symbol requires a procedure linkage table entry. We
2578 actually build the entry in adjust_dynamic_symbol,
2579 because this might be a case of linking PIC code which is
2580 never referenced by a dynamic object, in which case we
2581 don't need to generate a procedure linkage table entry
2582 after all. */
2583
2584 /* If this is a local symbol, we resolve it directly without
2585 creating a procedure linkage table entry. */
2586 if (h == NULL)
2587 continue;
2588
2589 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2590 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2591 break;
2592
2593 h->needs_plt = 1;
2594
2595 break;
2596
2597 case R_SH_64:
2598 case R_SH_64_PCREL:
2599 if (h != NULL)
2600 h->non_got_ref = 1;
2601
2602 /* If we are creating a shared library, and this is a reloc
2603 against a global symbol, or a non PC relative reloc
2604 against a local symbol, then we need to copy the reloc
2605 into the shared library. However, if we are linking with
2606 -Bsymbolic, we do not need to copy a reloc against a
2607 global symbol which is defined in an object we are
2608 including in the link (i.e., DEF_REGULAR is set). At
2609 this point we have not seen all the input files, so it is
2610 possible that DEF_REGULAR is not set now but will be set
2611 later (it is never cleared). We account for that
2612 possibility below by storing information in the
2613 pcrel_relocs_copied field of the hash table entry. */
2614 if (bfd_link_pic (info)
2615 && (sec->flags & SEC_ALLOC) != 0
2616 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2617 || (h != NULL
2618 && (! info->symbolic
2619 || !h->def_regular))))
2620 {
2621 /* When creating a shared object, we must copy these
2622 reloc types into the output file. We create a reloc
2623 section in dynobj and make room for this reloc. */
2624 if (sreloc == NULL)
2625 {
2626 sreloc = _bfd_elf_make_dynamic_reloc_section
2627 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
2628
2629 if (sreloc == NULL)
2630 return FALSE;
2631 }
2632
2633 sreloc->size += sizeof (Elf64_External_Rela);
2634
2635 /* If we are linking with -Bsymbolic, and this is a
2636 global symbol, we count the number of PC relative
2637 relocations we have entered for this symbol, so that
2638 we can discard them again if the symbol is later
2639 defined by a regular object. Note that this function
2640 is only called if we are using an elf_sh linker
2641 hash table, which means that h is really a pointer to
2642 an elf_sh_link_hash_entry. */
2643 if (h != NULL && info->symbolic
2644 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2645 {
2646 struct elf_sh64_link_hash_entry *eh;
2647 struct elf_sh64_pcrel_relocs_copied *p;
2648
2649 eh = (struct elf_sh64_link_hash_entry *) h;
2650
2651 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2652 if (p->section == sreloc)
2653 break;
2654
2655 if (p == NULL)
2656 {
2657 p = ((struct elf_sh64_pcrel_relocs_copied *)
2658 bfd_alloc (dynobj, sizeof *p));
2659 if (p == NULL)
2660 return FALSE;
2661 p->next = eh->pcrel_relocs_copied;
2662 eh->pcrel_relocs_copied = p;
2663 p->section = sreloc;
2664 p->count = 0;
2665 }
2666
2667 ++p->count;
2668 }
2669 }
2670
2671 break;
2672 }
2673 }
2674
2675 return TRUE;
2676 }
2677
2678 static int
2679 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2680 {
2681 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2682 return STT_DATALABEL;
2683
2684 return type;
2685 }
2686
2687 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2688 Either file can presumably exist without the other, but do not differ
2689 in elf-size-ness. How to share?
2690
2691 Hook called by the linker routine which adds symbols from an object
2692 file. We must make indirect symbols for undefined symbols marked with
2693 STT_DATALABEL, so relocations passing them will pick up that attribute
2694 and neutralize STO_SH5_ISA32 found on the symbol definition.
2695
2696 There is a problem, though: We want to fill in the hash-table entry for
2697 this symbol and signal to the caller that no further processing is
2698 needed. But we don't have the index for this hash-table entry. We
2699 rely here on that the current entry is the first hash-entry with NULL,
2700 which seems brittle. Also, iterating over the hash-table to find that
2701 entry is a linear operation on the number of symbols in this input
2702 file, and this function should take constant time, so that's not good
2703 too. Only comfort is that DataLabel references should only be found in
2704 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2705 into adding an option to elf_add_symbol_hook (preferably) for the index
2706 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2707 (not so good). */
2708
2709 static bfd_boolean
2710 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2711 Elf_Internal_Sym *sym, const char **namep,
2712 flagword *flagsp ATTRIBUTE_UNUSED,
2713 asection **secp, bfd_vma *valp)
2714 {
2715 /* We want to do this for relocatable as well as final linking. */
2716 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2717 && is_elf_hash_table (info->hash))
2718 {
2719 struct elf_link_hash_entry *h;
2720
2721 /* For relocatable links, we register the DataLabel sym in its own
2722 right, and tweak the name when it's output. Otherwise, we make
2723 an indirect symbol of it. */
2724 flagword flags
2725 = bfd_link_relocatable (info) || info->emitrelocations
2726 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2727
2728 char *dl_name
2729 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2730 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2731
2732 BFD_ASSERT (sym_hash != NULL);
2733
2734 /* Allocation may fail. */
2735 if (dl_name == NULL)
2736 return FALSE;
2737
2738 strcpy (dl_name, *namep);
2739 strcat (dl_name, DATALABEL_SUFFIX);
2740
2741 h = (struct elf_link_hash_entry *)
2742 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2743
2744 if (h == NULL)
2745 {
2746 /* No previous datalabel symbol. Make one. */
2747 struct bfd_link_hash_entry *bh = NULL;
2748 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2749
2750 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2751 flags, *secp, *valp,
2752 *namep, FALSE,
2753 bed->collect, &bh))
2754 {
2755 free (dl_name);
2756 return FALSE;
2757 }
2758
2759 h = (struct elf_link_hash_entry *) bh;
2760 h->non_elf = 0;
2761 h->type = STT_DATALABEL;
2762 }
2763 else
2764 /* If a new symbol was created, it holds the allocated name.
2765 Otherwise, we don't need it anymore and should deallocate it. */
2766 free (dl_name);
2767
2768 if (h->type != STT_DATALABEL
2769 || ((bfd_link_relocatable (info) || info->emitrelocations)
2770 && h->root.type != bfd_link_hash_undefined)
2771 || (! bfd_link_relocatable (info) && !info->emitrelocations
2772 && h->root.type != bfd_link_hash_indirect))
2773 {
2774 /* Make sure we don't get confused on invalid input. */
2775 _bfd_error_handler
2776 (_("%B: encountered datalabel symbol in input"), abfd);
2777 bfd_set_error (bfd_error_bad_value);
2778 return FALSE;
2779 }
2780
2781 /* Now find the hash-table slot for this entry and fill it in. */
2782 while (*sym_hash != NULL)
2783 sym_hash++;
2784 *sym_hash = h;
2785
2786 /* Signal to caller to skip this symbol - we've handled it. */
2787 *namep = NULL;
2788 }
2789
2790 return TRUE;
2791 }
2792
2793 /* This hook function is called before the linker writes out a global
2794 symbol. For relocatable links, DataLabel symbols will be present in
2795 linker output. We cut off the special suffix on those symbols, so the
2796 right name appears in the output.
2797
2798 When linking and emitting relocations, there can appear global symbols
2799 that are not referenced by relocs, but rather only implicitly through
2800 DataLabel references, a relation that is not visible to the linker.
2801 Since no stripping of global symbols in done when doing such linking,
2802 we don't need to look up and make sure to emit the main symbol for each
2803 DataLabel symbol. */
2804
2805 static int
2806 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2807 const char *cname,
2808 Elf_Internal_Sym *sym,
2809 asection *input_sec ATTRIBUTE_UNUSED,
2810 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2811 {
2812 char *name = (char *) cname;
2813
2814 if (bfd_link_relocatable (info) || info->emitrelocations)
2815 {
2816 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2817 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2818 }
2819
2820 return 1;
2821 }
2822
2823 /* Set bit 0 on the entry address; it always points to SHmedia code. This
2824 is mostly for symmetry with the 32-bit format, where code can be
2825 SHcompact and we need to make a distinction to make sure execution
2826 starts in the right ISA mode. It is also convenient for a loader,
2827 which would otherwise have to set this bit when loading a TR register
2828 before jumping to the program entry. */
2829
2830 static void
2831 sh64_elf64_final_write_processing (bfd *abfd,
2832 bfd_boolean linker ATTRIBUTE_UNUSED)
2833 {
2834 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
2835 numerically, but we currently lack the infrastructure to recognize
2836 that: The entry symbol, and info whether it is numeric or a symbol
2837 name is kept private in the linker. */
2838 if (elf_elfheader (abfd)->e_type == ET_EXEC)
2839 elf_elfheader (abfd)->e_entry |= 1;
2840 }
2841
2842 /* First entry in an absolute procedure linkage table look like this. */
2843
2844 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
2845 {
2846 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
2847 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
2848 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
2849 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2850 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2851 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2852 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2853 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
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 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2859 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2860 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2861 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2862 };
2863
2864 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
2865 {
2866 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
2867 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
2868 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
2869 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2870 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2871 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2872 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2873 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
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 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2879 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2880 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2881 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2882 };
2883
2884 /* Sebsequent entries in an absolute procedure linkage table look like
2885 this. */
2886
2887 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
2888 {
2889 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
2890 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
2891 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
2892 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
2893 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
2894 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2895 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2896 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2897 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
2898 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
2899 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
2900 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2901 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2902 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2903 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2904 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2905 };
2906
2907 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
2908 {
2909 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
2910 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2911 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2912 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2913 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
2914 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2915 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2916 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2917 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
2918 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
2919 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
2920 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2921 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2922 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2923 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2924 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2925 };
2926
2927 /* Entries in a PIC procedure linkage table look like this. */
2928
2929 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
2930 {
2931 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
2932 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
2933 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
2934 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2935 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2936 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2937 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2938 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2939 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
2940 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
2941 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2942 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2943 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2944 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2945 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2946 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2947 };
2948
2949 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
2950 {
2951 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
2952 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
2953 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
2954 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2955 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2956 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2957 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2958 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2959 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
2960 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
2961 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2962 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2963 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2964 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2965 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2966 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2967 };
2968
2969 static const bfd_byte *elf_sh64_plt0_entry;
2970 static const bfd_byte *elf_sh64_plt_entry;
2971 static const bfd_byte *elf_sh64_pic_plt_entry;
2972
2973 /* Create an entry in an sh ELF linker hash table. */
2974
2975 static struct bfd_hash_entry *
2976 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
2977 struct bfd_hash_table *table,
2978 const char *string)
2979 {
2980 struct elf_sh64_link_hash_entry *ret =
2981 (struct elf_sh64_link_hash_entry *) entry;
2982
2983 /* Allocate the structure if it has not already been allocated by a
2984 subclass. */
2985 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
2986 ret = ((struct elf_sh64_link_hash_entry *)
2987 bfd_hash_allocate (table,
2988 sizeof (struct elf_sh64_link_hash_entry)));
2989 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
2990 return (struct bfd_hash_entry *) ret;
2991
2992 /* Call the allocation method of the superclass. */
2993 ret = ((struct elf_sh64_link_hash_entry *)
2994 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2995 table, string));
2996 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
2997 {
2998 ret->pcrel_relocs_copied = NULL;
2999 ret->datalabel_got_offset = (bfd_vma) -1;
3000 }
3001
3002 return (struct bfd_hash_entry *) ret;
3003 }
3004
3005 /* Create an sh64 ELF linker hash table. */
3006
3007 static struct bfd_link_hash_table *
3008 sh64_elf64_link_hash_table_create (bfd *abfd)
3009 {
3010 struct elf_link_hash_table *ret;
3011
3012 ret = (struct elf_link_hash_table *) bfd_zmalloc (sizeof (* ret));
3013 if (ret == (struct elf_link_hash_table *) NULL)
3014 return NULL;
3015
3016 if (!_bfd_elf_link_hash_table_init (ret, abfd,
3017 sh64_elf64_link_hash_newfunc,
3018 sizeof (struct elf_sh64_link_hash_entry),
3019 GENERIC_ELF_DATA))
3020 {
3021 free (ret);
3022 return NULL;
3023 }
3024
3025 return &ret->root;
3026 }
3027
3028 inline static void
3029 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
3030 {
3031 bfd_put_32 (output_bfd,
3032 bfd_get_32 (output_bfd, addr)
3033 | ((value >> 6) & 0x3fffc00),
3034 addr);
3035 bfd_put_32 (output_bfd,
3036 bfd_get_32 (output_bfd, addr + 4)
3037 | ((value << 10) & 0x3fffc00),
3038 addr + 4);
3039 }
3040
3041 inline static void
3042 movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr)
3043 {
3044 bfd_put_32 (output_bfd,
3045 bfd_get_32 (output_bfd, addr)
3046 | ((value >> 38) & 0x3fffc00),
3047 addr);
3048 bfd_put_32 (output_bfd,
3049 bfd_get_32 (output_bfd, addr + 4)
3050 | ((value >> 22) & 0x3fffc00),
3051 addr + 4);
3052 bfd_put_32 (output_bfd,
3053 bfd_get_32 (output_bfd, addr + 8)
3054 | ((value >> 6) & 0x3fffc00),
3055 addr + 8);
3056 bfd_put_32 (output_bfd,
3057 bfd_get_32 (output_bfd, addr + 12)
3058 | ((value << 10) & 0x3fffc00),
3059 addr + 12);
3060 }
3061
3062 /* Create dynamic sections when linking against a dynamic object. */
3063
3064 static bfd_boolean
3065 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3066 {
3067 flagword flags, pltflags;
3068 register asection *s;
3069 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3070 int ptralign = 0;
3071
3072 switch (bed->s->arch_size)
3073 {
3074 case 32:
3075 ptralign = 2;
3076 break;
3077
3078 case 64:
3079 ptralign = 3;
3080 break;
3081
3082 default:
3083 bfd_set_error (bfd_error_bad_value);
3084 return FALSE;
3085 }
3086
3087 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3088 .rel[a].bss sections. */
3089
3090 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3091 | SEC_LINKER_CREATED);
3092
3093 pltflags = flags;
3094 pltflags |= SEC_CODE;
3095 if (bed->plt_not_loaded)
3096 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3097 if (bed->plt_readonly)
3098 pltflags |= SEC_READONLY;
3099
3100 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
3101 if (s == NULL
3102 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3103 return FALSE;
3104
3105 if (bed->want_plt_sym)
3106 {
3107 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3108 .plt section. */
3109 struct elf_link_hash_entry *h;
3110 struct bfd_link_hash_entry *bh = NULL;
3111
3112 if (! (_bfd_generic_link_add_one_symbol
3113 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3114 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3115 return FALSE;
3116
3117 h = (struct elf_link_hash_entry *) bh;
3118 h->def_regular = 1;
3119 h->type = STT_OBJECT;
3120 elf_hash_table (info)->hplt = h;
3121
3122 if (bfd_link_pic (info)
3123 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3124 return FALSE;
3125 }
3126
3127 s = bfd_make_section_anyway_with_flags (abfd,
3128 bed->default_use_rela_p
3129 ? ".rela.plt" : ".rel.plt",
3130 flags | SEC_READONLY);
3131 if (s == NULL
3132 || ! bfd_set_section_alignment (abfd, s, ptralign))
3133 return FALSE;
3134
3135 if (! _bfd_elf_create_got_section (abfd, info))
3136 return FALSE;
3137
3138 if (bed->want_dynbss)
3139 {
3140 /* The .dynbss section is a place to put symbols which are defined
3141 by dynamic objects, are referenced by regular objects, and are
3142 not functions. We must allocate space for them in the process
3143 image and use a R_*_COPY reloc to tell the dynamic linker to
3144 initialize them at run time. The linker script puts the .dynbss
3145 section into the .bss section of the final image. */
3146 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3147 SEC_ALLOC | SEC_LINKER_CREATED);
3148 if (s == NULL)
3149 return FALSE;
3150
3151 /* The .rel[a].bss section holds copy relocs. This section is not
3152 normally needed. We need to create it here, though, so that the
3153 linker will map it to an output section. We can't just create it
3154 only if we need it, because we will not know whether we need it
3155 until we have seen all the input files, and the first time the
3156 main linker code calls BFD after examining all the input files
3157 (size_dynamic_sections) the input sections have already been
3158 mapped to the output sections. If the section turns out not to
3159 be needed, we can discard it later. We will never need this
3160 section when generating a shared object, since they do not use
3161 copy relocs. */
3162 if (! bfd_link_pic (info))
3163 {
3164 s = bfd_make_section_anyway_with_flags (abfd,
3165 (bed->default_use_rela_p
3166 ? ".rela.bss" : ".rel.bss"),
3167 flags | SEC_READONLY);
3168 if (s == NULL
3169 || ! bfd_set_section_alignment (abfd, s, ptralign))
3170 return FALSE;
3171 }
3172 }
3173
3174 return TRUE;
3175 }
3176 \f
3177 /* Adjust a symbol defined by a dynamic object and referenced by a
3178 regular object. The current definition is in some section of the
3179 dynamic object, but we're not including those sections. We have to
3180 change the definition to something the rest of the link can
3181 understand. */
3182
3183 static bfd_boolean
3184 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3185 struct elf_link_hash_entry *h)
3186 {
3187 bfd *dynobj;
3188 asection *s;
3189
3190 dynobj = elf_hash_table (info)->dynobj;
3191
3192 /* Make sure we know what is going on here. */
3193 BFD_ASSERT (dynobj != NULL
3194 && (h->needs_plt
3195 || h->u.weakdef != NULL
3196 || (h->def_dynamic
3197 && h->ref_regular
3198 && !h->def_regular)));
3199
3200 /* If this is a function, put it in the procedure linkage table. We
3201 will fill in the contents of the procedure linkage table later,
3202 when we know the address of the .got section. */
3203 if (h->type == STT_FUNC
3204 || h->needs_plt)
3205 {
3206 if (! bfd_link_pic (info)
3207 && !h->def_dynamic
3208 && !h->ref_dynamic)
3209 {
3210 /* This case can occur if we saw a PLT reloc in an input
3211 file, but the symbol was never referred to by a dynamic
3212 object. In such a case, we don't actually need to build
3213 a procedure linkage table, and we can just do a REL64
3214 reloc instead. */
3215 BFD_ASSERT (h->needs_plt);
3216 return TRUE;
3217 }
3218
3219 /* Make sure this symbol is output as a dynamic symbol. */
3220 if (h->dynindx == -1)
3221 {
3222 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3223 return FALSE;
3224 }
3225
3226 s = elf_hash_table (info)->splt;
3227 BFD_ASSERT (s != NULL);
3228
3229 /* If this is the first .plt entry, make room for the special
3230 first entry. */
3231 if (s->size == 0)
3232 s->size += PLT_ENTRY_SIZE;
3233
3234 /* If this symbol is not defined in a regular file, and we are
3235 not generating a shared library, then set the symbol to this
3236 location in the .plt. This is required to make function
3237 pointers compare as equal between the normal executable and
3238 the shared library. */
3239 if (! bfd_link_pic (info)
3240 && !h->def_regular)
3241 {
3242 h->root.u.def.section = s;
3243 h->root.u.def.value = s->size;
3244 }
3245
3246 h->plt.offset = s->size;
3247
3248 /* Make room for this entry. */
3249 s->size += elf_sh64_sizeof_plt (info);
3250
3251 /* We also need to make an entry in the .got.plt section, which
3252 will be placed in the .got section by the linker script. */
3253
3254 s = elf_hash_table (info)->sgotplt;
3255 BFD_ASSERT (s != NULL);
3256 s->size += 8;
3257
3258 /* We also need to make an entry in the .rela.plt section. */
3259
3260 s = elf_hash_table (info)->srelplt;
3261 BFD_ASSERT (s != NULL);
3262 s->size += sizeof (Elf64_External_Rela);
3263
3264 return TRUE;
3265 }
3266
3267 /* If this is a weak symbol, and there is a real definition, the
3268 processor independent code will have arranged for us to see the
3269 real definition first, and we can just use the same value. */
3270 if (h->u.weakdef != NULL)
3271 {
3272 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3273 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3274 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3275 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3276 return TRUE;
3277 }
3278
3279 /* This is a reference to a symbol defined by a dynamic object which
3280 is not a function. */
3281
3282 /* If we are creating a shared library, we must presume that the
3283 only references to the symbol are via the global offset table.
3284 For such cases we need not do anything here; the relocations will
3285 be handled correctly by relocate_section. */
3286 if (bfd_link_pic (info))
3287 return TRUE;
3288
3289 /* If there are no references to this symbol that do not use the
3290 GOT, we don't need to generate a copy reloc. */
3291 if (!h->non_got_ref)
3292 return TRUE;
3293
3294 /* We must allocate the symbol in our .dynbss section, which will
3295 become part of the .bss section of the executable. There will be
3296 an entry for this symbol in the .dynsym section. The dynamic
3297 object will contain position independent code, so all references
3298 from the dynamic object to this symbol will go through the global
3299 offset table. The dynamic linker will use the .dynsym entry to
3300 determine the address it must put in the global offset table, so
3301 both the dynamic object and the regular object will refer to the
3302 same memory location for the variable. */
3303
3304 s = bfd_get_linker_section (dynobj, ".dynbss");
3305 BFD_ASSERT (s != NULL);
3306
3307 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3308 copy the initial value out of the dynamic object and into the
3309 runtime process image. We need to remember the offset into the
3310 .rela.bss section we are going to use. */
3311 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
3312 {
3313 asection *srel;
3314
3315 srel = bfd_get_linker_section (dynobj, ".rela.bss");
3316 BFD_ASSERT (srel != NULL);
3317 srel->size += sizeof (Elf64_External_Rela);
3318 h->needs_copy = 1;
3319 }
3320
3321 return _bfd_elf_adjust_dynamic_copy (info, h, s);
3322 }
3323
3324 /* This function is called via sh_elf_link_hash_traverse if we are
3325 creating a shared object with -Bsymbolic. It discards the space
3326 allocated to copy PC relative relocs against symbols which are
3327 defined in regular objects. We allocated space for them in the
3328 check_relocs routine, but we won't fill them in in the
3329 relocate_section routine. */
3330
3331 static bfd_boolean
3332 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3333 void *ignore ATTRIBUTE_UNUSED)
3334 {
3335 struct elf_sh64_pcrel_relocs_copied *s;
3336
3337 /* We only discard relocs for symbols defined in a regular object. */
3338 if (!h->root.def_regular)
3339 return TRUE;
3340
3341 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3342 s->section->size -= s->count * sizeof (Elf64_External_Rela);
3343
3344 return TRUE;
3345 }
3346
3347 /* Set the sizes of the dynamic sections. */
3348
3349 static bfd_boolean
3350 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3351 struct bfd_link_info *info)
3352 {
3353 bfd *dynobj;
3354 asection *s;
3355 bfd_boolean plt;
3356 bfd_boolean relocs;
3357 bfd_boolean reltext;
3358
3359 dynobj = elf_hash_table (info)->dynobj;
3360 BFD_ASSERT (dynobj != NULL);
3361
3362 if (elf_hash_table (info)->dynamic_sections_created)
3363 {
3364 /* Set the contents of the .interp section to the interpreter. */
3365 if (bfd_link_executable (info) && !info->nointerp)
3366 {
3367 s = bfd_get_linker_section (dynobj, ".interp");
3368 BFD_ASSERT (s != NULL);
3369 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3370 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3371 }
3372 }
3373 else
3374 {
3375 /* We may have created entries in the .rela.got section.
3376 However, if we are not creating the dynamic sections, we will
3377 not actually use these entries. Reset the size of .rela.got,
3378 which will cause it to get stripped from the output file
3379 below. */
3380 s = elf_hash_table (info)->srelgot;
3381 if (s != NULL)
3382 s->size = 0;
3383 }
3384
3385 /* If this is a -Bsymbolic shared link, then we need to discard all
3386 PC relative relocs against symbols defined in a regular object.
3387 We allocated space for them in the check_relocs routine, but we
3388 will not fill them in in the relocate_section routine. */
3389 if (bfd_link_pic (info) && info->symbolic)
3390 sh64_elf64_link_hash_traverse (elf_hash_table (info),
3391 sh64_elf64_discard_copies, NULL);
3392
3393 /* The check_relocs and adjust_dynamic_symbol entry points have
3394 determined the sizes of the various dynamic sections. Allocate
3395 memory for them. */
3396 plt = FALSE;
3397 relocs = FALSE;
3398 reltext = FALSE;
3399 for (s = dynobj->sections; s != NULL; s = s->next)
3400 {
3401 const char *name;
3402
3403 if ((s->flags & SEC_LINKER_CREATED) == 0)
3404 continue;
3405
3406 /* It's OK to base decisions on the section name, because none
3407 of the dynobj section names depend upon the input files. */
3408 name = bfd_get_section_name (dynobj, s);
3409
3410 if (strcmp (name, ".plt") == 0)
3411 {
3412 /* Remember whether there is a PLT. */
3413 plt = s->size != 0;
3414 }
3415 else if (CONST_STRNEQ (name, ".rela"))
3416 {
3417 if (s->size != 0)
3418 {
3419 asection *target;
3420
3421 /* Remember whether there are any reloc sections other
3422 than .rela.plt. */
3423 if (strcmp (name, ".rela.plt") != 0)
3424 {
3425 const char *outname;
3426
3427 relocs = TRUE;
3428
3429 /* If this relocation section applies to a read only
3430 section, then we probably need a DT_TEXTREL
3431 entry. The entries in the .rela.plt section
3432 really apply to the .got section, which we
3433 created ourselves and so know is not readonly. */
3434 outname = bfd_get_section_name (output_bfd,
3435 s->output_section);
3436 target = bfd_get_section_by_name (output_bfd, outname + 5);
3437 if (target != NULL
3438 && (target->flags & SEC_READONLY) != 0
3439 && (target->flags & SEC_ALLOC) != 0)
3440 reltext = TRUE;
3441 }
3442
3443 /* We use the reloc_count field as a counter if we need
3444 to copy relocs into the output file. */
3445 s->reloc_count = 0;
3446 }
3447 }
3448 else if (! CONST_STRNEQ (name, ".got")
3449 && strcmp (name, ".dynbss") != 0)
3450 {
3451 /* It's not one of our sections, so don't allocate space. */
3452 continue;
3453 }
3454
3455 if (s->size == 0)
3456 {
3457 /* If we don't need this section, strip it from the
3458 output file. This is mostly to handle .rela.bss and
3459 .rela.plt. We must create both sections in
3460 create_dynamic_sections, because they must be created
3461 before the linker maps input sections to output
3462 sections. The linker does that before
3463 adjust_dynamic_symbol is called, and it is that
3464 function which decides whether anything needs to go
3465 into these sections. */
3466 s->flags |= SEC_EXCLUDE;
3467 continue;
3468 }
3469
3470 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3471 continue;
3472
3473 /* Allocate memory for the section contents. */
3474 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3475 if (s->contents == NULL)
3476 return FALSE;
3477 }
3478
3479 if (elf_hash_table (info)->dynamic_sections_created)
3480 {
3481 /* Add some entries to the .dynamic section. We fill in the
3482 values later, in sh64_elf64_finish_dynamic_sections, but we
3483 must add the entries now so that we get the correct size for
3484 the .dynamic section. The DT_DEBUG entry is filled in by the
3485 dynamic linker and used by the debugger. */
3486 if (bfd_link_executable (info))
3487 {
3488 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3489 return FALSE;
3490 }
3491
3492 if (plt)
3493 {
3494 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3495 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3496 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3497 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3498 return FALSE;
3499 }
3500
3501 if (relocs)
3502 {
3503 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3504 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3505 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3506 sizeof (Elf64_External_Rela)))
3507 return FALSE;
3508 }
3509
3510 if (reltext)
3511 {
3512 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3513 return FALSE;
3514 }
3515 }
3516
3517 return TRUE;
3518 }
3519
3520 /* Finish up dynamic symbol handling. We set the contents of various
3521 dynamic sections here. */
3522
3523 static bfd_boolean
3524 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3525 struct bfd_link_info *info,
3526 struct elf_link_hash_entry *h,
3527 Elf_Internal_Sym *sym)
3528 {
3529 bfd *dynobj;
3530
3531 dynobj = elf_hash_table (info)->dynobj;
3532
3533 if (h->plt.offset != (bfd_vma) -1)
3534 {
3535 asection *splt;
3536 asection *sgot;
3537 asection *srel;
3538
3539 bfd_vma plt_index;
3540 bfd_vma got_offset;
3541 Elf_Internal_Rela rel;
3542 bfd_byte *loc;
3543
3544 /* This symbol has an entry in the procedure linkage table. Set
3545 it up. */
3546
3547 BFD_ASSERT (h->dynindx != -1);
3548
3549 splt = elf_hash_table (info)->splt;
3550 sgot = elf_hash_table (info)->sgotplt;
3551 srel = elf_hash_table (info)->srelplt;
3552 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3553
3554 /* Get the index in the procedure linkage table which
3555 corresponds to this symbol. This is the index of this symbol
3556 in all the symbols for which we are making plt entries. The
3557 first entry in the procedure linkage table is reserved. */
3558 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3559
3560 /* Get the offset into the .got table of the entry that
3561 corresponds to this function. Each .got entry is 8 bytes.
3562 The first three are reserved. */
3563 got_offset = (plt_index + 3) * 8;
3564
3565 if (bfd_link_pic (info))
3566 got_offset -= GOT_BIAS;
3567
3568 /* Fill in the entry in the procedure linkage table. */
3569 if (! bfd_link_pic (info))
3570 {
3571 if (elf_sh64_plt_entry == NULL)
3572 {
3573 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3574 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3575 }
3576 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3577 elf_sh64_sizeof_plt (info));
3578 movi_3shori_putval (output_bfd,
3579 (sgot->output_section->vma
3580 + sgot->output_offset
3581 + got_offset),
3582 (splt->contents + h->plt.offset
3583 + elf_sh64_plt_symbol_offset (info)));
3584
3585 /* Set bottom bit because its for a branch to SHmedia */
3586 movi_shori_putval (output_bfd,
3587 -(h->plt.offset
3588 + elf_sh64_plt_plt0_offset (info) + 8)
3589 | 1,
3590 (splt->contents + h->plt.offset
3591 + elf_sh64_plt_plt0_offset (info)));
3592 }
3593 else
3594 {
3595 if (elf_sh64_pic_plt_entry == NULL)
3596 {
3597 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3598 elf_sh64_pic_plt_entry_be :
3599 elf_sh64_pic_plt_entry_le);
3600 }
3601 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3602 elf_sh64_sizeof_plt (info));
3603 movi_shori_putval (output_bfd, got_offset,
3604 (splt->contents + h->plt.offset
3605 + elf_sh64_plt_symbol_offset (info)));
3606 }
3607
3608 if (bfd_link_pic (info))
3609 got_offset += GOT_BIAS;
3610
3611 movi_shori_putval (output_bfd,
3612 plt_index * sizeof (Elf64_External_Rela),
3613 (splt->contents + h->plt.offset
3614 + elf_sh64_plt_reloc_offset (info)));
3615
3616 /* Fill in the entry in the global offset table. */
3617 bfd_put_64 (output_bfd,
3618 (splt->output_section->vma
3619 + splt->output_offset
3620 + h->plt.offset
3621 + elf_sh64_plt_temp_offset (info)),
3622 sgot->contents + got_offset);
3623
3624 /* Fill in the entry in the .rela.plt section. */
3625 rel.r_offset = (sgot->output_section->vma
3626 + sgot->output_offset
3627 + got_offset);
3628 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3629 rel.r_addend = 0;
3630 rel.r_addend = GOT_BIAS;
3631 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3632 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3633
3634 if (!h->def_regular)
3635 {
3636 /* Mark the symbol as undefined, rather than as defined in
3637 the .plt section. Leave the value alone. */
3638 sym->st_shndx = SHN_UNDEF;
3639 }
3640 }
3641
3642 if (h->got.offset != (bfd_vma) -1)
3643 {
3644 asection *sgot;
3645 asection *srel;
3646 Elf_Internal_Rela rel;
3647 bfd_byte *loc;
3648
3649 /* This symbol has an entry in the global offset table. Set it
3650 up. */
3651
3652 sgot = elf_hash_table (info)->sgot;
3653 srel = elf_hash_table (info)->srelgot;
3654 BFD_ASSERT (sgot != NULL && srel != NULL);
3655
3656 rel.r_offset = (sgot->output_section->vma
3657 + sgot->output_offset
3658 + (h->got.offset &~ 1));
3659
3660 /* If this is a -Bsymbolic link, and the symbol is defined
3661 locally, we just want to emit a RELATIVE reloc. Likewise if
3662 the symbol was forced to be local because of a version file.
3663 The entry in the global offset table will already have been
3664 initialized in the relocate_section function. */
3665 if (bfd_link_pic (info)
3666 && (info->symbolic || h->dynindx == -1)
3667 && h->def_regular)
3668 {
3669 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3670 rel.r_addend = (h->root.u.def.value
3671 + h->root.u.def.section->output_section->vma
3672 + h->root.u.def.section->output_offset);
3673 }
3674 else
3675 {
3676 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3677 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3678 rel.r_addend = 0;
3679 }
3680
3681 loc = srel->contents;
3682 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3683 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3684 }
3685
3686 if (h->needs_copy)
3687 {
3688 asection *s;
3689 Elf_Internal_Rela rel;
3690 bfd_byte *loc;
3691
3692 /* This symbol needs a copy reloc. Set it up. */
3693
3694 BFD_ASSERT (h->dynindx != -1
3695 && (h->root.type == bfd_link_hash_defined
3696 || h->root.type == bfd_link_hash_defweak));
3697
3698 s = bfd_get_linker_section (dynobj, ".rela.bss");
3699 BFD_ASSERT (s != NULL);
3700
3701 rel.r_offset = (h->root.u.def.value
3702 + h->root.u.def.section->output_section->vma
3703 + h->root.u.def.section->output_offset);
3704 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3705 rel.r_addend = 0;
3706 loc = s->contents;
3707 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3708 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3709 }
3710
3711 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3712 if (h == elf_hash_table (info)->hdynamic
3713 || h == elf_hash_table (info)->hgot)
3714 sym->st_shndx = SHN_ABS;
3715
3716 return TRUE;
3717 }
3718
3719 /* Finish up the dynamic sections. */
3720
3721 static bfd_boolean
3722 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3723 struct bfd_link_info *info)
3724 {
3725 bfd *dynobj;
3726 asection *sgot;
3727 asection *sdyn;
3728
3729 dynobj = elf_hash_table (info)->dynobj;
3730
3731 sgot = elf_hash_table (info)->sgotplt;
3732 BFD_ASSERT (sgot != NULL);
3733 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3734
3735 if (elf_hash_table (info)->dynamic_sections_created)
3736 {
3737 asection *splt;
3738 Elf64_External_Dyn *dyncon, *dynconend;
3739
3740 BFD_ASSERT (sdyn != NULL);
3741
3742 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3743 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3744 for (; dyncon < dynconend; dyncon++)
3745 {
3746 Elf_Internal_Dyn dyn;
3747 const char *name;
3748 asection *s;
3749 struct elf_link_hash_entry *h;
3750
3751 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3752
3753 switch (dyn.d_tag)
3754 {
3755 default:
3756 break;
3757
3758 case DT_INIT:
3759 name = info->init_function;
3760 goto get_sym;
3761
3762 case DT_FINI:
3763 name = info->fini_function;
3764 get_sym:
3765 if (dyn.d_un.d_val != 0)
3766 {
3767 h = elf_link_hash_lookup (elf_hash_table (info), name,
3768 FALSE, FALSE, TRUE);
3769 if (h != NULL && (h->other & STO_SH5_ISA32))
3770 {
3771 dyn.d_un.d_val |= 1;
3772 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3773 }
3774 }
3775 break;
3776
3777 case DT_PLTGOT:
3778 s = elf_hash_table (info)->sgotplt;
3779 goto get_vma;
3780
3781 case DT_JMPREL:
3782 s = elf_hash_table (info)->srelplt;
3783 get_vma:
3784 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3785 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3786 break;
3787
3788 case DT_PLTRELSZ:
3789 s = elf_hash_table (info)->srelplt;
3790 dyn.d_un.d_val = s->size;
3791 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3792 break;
3793 }
3794 }
3795
3796 /* Fill in the first entry in the procedure linkage table. */
3797 splt = elf_hash_table (info)->splt;
3798 if (splt && splt->size > 0)
3799 {
3800 if (bfd_link_pic (info))
3801 {
3802 if (elf_sh64_pic_plt_entry == NULL)
3803 {
3804 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3805 elf_sh64_pic_plt_entry_be :
3806 elf_sh64_pic_plt_entry_le);
3807 }
3808 memcpy (splt->contents, elf_sh64_pic_plt_entry,
3809 elf_sh64_sizeof_plt (info));
3810 }
3811 else
3812 {
3813 if (elf_sh64_plt0_entry == NULL)
3814 {
3815 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
3816 elf_sh64_plt0_entry_be :
3817 elf_sh64_plt0_entry_le);
3818 }
3819 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
3820 movi_3shori_putval (output_bfd,
3821 sgot->output_section->vma
3822 + sgot->output_offset,
3823 splt->contents
3824 + elf_sh64_plt0_gotplt_offset (info));
3825 }
3826
3827 /* UnixWare sets the entsize of .plt to 8, although that doesn't
3828 really seem like the right value. */
3829 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
3830 }
3831 }
3832
3833 /* Fill in the first three entries in the global offset table. */
3834 if (sgot->size > 0)
3835 {
3836 if (sdyn == NULL)
3837 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
3838 else
3839 bfd_put_64 (output_bfd,
3840 sdyn->output_section->vma + sdyn->output_offset,
3841 sgot->contents);
3842 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3843 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
3844 }
3845
3846 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
3847
3848 return TRUE;
3849 }
3850
3851 /* Merge non visibility st_other attribute when the symbol comes from
3852 a dynamic object. */
3853 static void
3854 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
3855 const Elf_Internal_Sym *isym,
3856 bfd_boolean definition,
3857 bfd_boolean dynamic ATTRIBUTE_UNUSED)
3858 {
3859 if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0)
3860 {
3861 unsigned char other;
3862
3863 /* Take the balance of OTHER from the definition. */
3864 other = (definition ? isym->st_other : h->other);
3865 other &= ~ ELF_ST_VISIBILITY (-1);
3866 h->other = other | ELF_ST_VISIBILITY (h->other);
3867 }
3868
3869 return;
3870 }
3871
3872 static const struct bfd_elf_special_section sh64_elf64_special_sections[]=
3873 {
3874 { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 },
3875 { NULL, 0, 0, 0, 0 }
3876 };
3877
3878 #define TARGET_BIG_SYM sh64_elf64_vec
3879 #define TARGET_BIG_NAME "elf64-sh64"
3880 #define TARGET_LITTLE_SYM sh64_elf64_le_vec
3881 #define TARGET_LITTLE_NAME "elf64-sh64l"
3882 #define ELF_ARCH bfd_arch_sh
3883 #define ELF_MACHINE_CODE EM_SH
3884 #define ELF_MAXPAGESIZE 128
3885
3886 #define elf_symbol_leading_char '_'
3887
3888 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
3889 #define bfd_elf64_bfd_reloc_name_lookup \
3890 sh_elf64_reloc_name_lookup
3891 #define elf_info_to_howto sh_elf64_info_to_howto
3892
3893 /* Note: there's no relaxation at present. */
3894
3895 #define elf_backend_relocate_section sh_elf64_relocate_section
3896 #define bfd_elf64_bfd_get_relocated_section_contents \
3897 sh_elf64_get_relocated_section_contents
3898 #define elf_backend_object_p sh_elf64_set_mach_from_flags
3899 #define bfd_elf64_bfd_set_private_flags \
3900 sh_elf64_set_private_flags
3901 #define bfd_elf64_bfd_copy_private_bfd_data \
3902 sh_elf64_copy_private_data
3903 #define bfd_elf64_bfd_merge_private_bfd_data \
3904 sh_elf64_merge_private_data
3905 #define elf_backend_fake_sections sh64_elf64_fake_sections
3906
3907 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
3908 #define elf_backend_check_relocs sh_elf64_check_relocs
3909
3910 #define elf_backend_can_gc_sections 1
3911
3912 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
3913
3914 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
3915
3916 #define elf_backend_link_output_symbol_hook \
3917 sh64_elf64_link_output_symbol_hook
3918
3919 #define elf_backend_merge_symbol_attribute \
3920 sh64_elf64_merge_symbol_attribute
3921
3922 #define elf_backend_final_write_processing \
3923 sh64_elf64_final_write_processing
3924
3925 #define elf_backend_create_dynamic_sections \
3926 sh64_elf64_create_dynamic_sections
3927 #define bfd_elf64_bfd_link_hash_table_create \
3928 sh64_elf64_link_hash_table_create
3929 #define elf_backend_adjust_dynamic_symbol \
3930 sh64_elf64_adjust_dynamic_symbol
3931 #define elf_backend_size_dynamic_sections \
3932 sh64_elf64_size_dynamic_sections
3933 #define elf_backend_omit_section_dynsym \
3934 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
3935 #define elf_backend_finish_dynamic_symbol \
3936 sh64_elf64_finish_dynamic_symbol
3937 #define elf_backend_finish_dynamic_sections \
3938 sh64_elf64_finish_dynamic_sections
3939 #define elf_backend_special_sections sh64_elf64_special_sections
3940
3941 #define elf_backend_want_got_plt 1
3942 #define elf_backend_plt_readonly 1
3943 #define elf_backend_want_plt_sym 0
3944 #define elf_backend_got_header_size 24
3945 #define elf_backend_dtrel_excludes_plt 1
3946
3947 #define elf_backend_linux_prpsinfo64_ugid16 TRUE
3948
3949 #include "elf64-target.h"
3950
3951 /* NetBSD support. */
3952 #undef TARGET_BIG_SYM
3953 #define TARGET_BIG_SYM sh64_elf64_nbsd_vec
3954 #undef TARGET_BIG_NAME
3955 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
3956 #undef TARGET_LITTLE_SYM
3957 #define TARGET_LITTLE_SYM sh64_elf64_nbsd_le_vec
3958 #undef TARGET_LITTLE_NAME
3959 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
3960 #undef ELF_MAXPAGESIZE
3961 #define ELF_MAXPAGESIZE 0x10000
3962 #undef elf_symbol_leading_char
3963 #define elf_symbol_leading_char 0
3964
3965 #define elf64_bed elf64_sh64_nbsd_bed
3966
3967 #include "elf64-target.h"
3968
3969 /* Linux support. */
3970 #undef TARGET_BIG_SYM
3971 #define TARGET_BIG_SYM sh64_elf64_linux_be_vec
3972 #undef TARGET_BIG_NAME
3973 #define TARGET_BIG_NAME "elf64-sh64big-linux"
3974 #undef TARGET_LITTLE_SYM
3975 #define TARGET_LITTLE_SYM sh64_elf64_linux_vec
3976 #undef TARGET_LITTLE_NAME
3977 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
3978 #undef elf64_bed
3979 #define elf64_bed elf64_sh64_linux_bed
3980
3981 #include "elf64-target.h"
The GNU Binutils are a collection of binary tools.