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[deliverable/binutils-gdb.git] / bfd / elf64-sh64.c
1 /* SuperH SH64-specific support for 64-bit ELF
2 Copyright (C) 2000-2018 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #define SH64_ELF64
22
23 #include "sysdep.h"
24 #include "bfd.h"
25 #include "bfdlink.h"
26 #include "libbfd.h"
27 #include "elf-bfd.h"
28 #include "elf/sh.h"
29
30 /* Add a suffix for datalabel indirection symbols. It must not match any
31 other symbols; user symbols with or without version or other
32 decoration. It must only be used internally and not emitted by any
33 means. */
34 #define DATALABEL_SUFFIX " DL"
35
36 #define GOT_BIAS (-((long)-32768))
37
38 #define PLT_ENTRY_SIZE 64
39
40 /* Return size of a PLT entry. */
41 #define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE
42
43 /* Return offset of the PLT0 address in an absolute PLT entry. */
44 #define elf_sh64_plt_plt0_offset(info) 32
45
46 /* Return offset of the linker in PLT0 entry. */
47 #define elf_sh64_plt0_gotplt_offset(info) 0
48
49 /* Return offset of the trampoline in PLT entry */
50 #define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
51
52 /* Return offset of the symbol in PLT entry. */
53 #define elf_sh64_plt_symbol_offset(info) 0
54
55 /* Return offset of the relocation in PLT entry. */
56 #define elf_sh64_plt_reloc_offset(info) (bfd_link_pic (info) ? 52 : 44)
57
58 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
59
60 /* The sh linker needs to keep track of the number of relocs that it
61 decides to copy in check_relocs for each symbol. This is so that
62 it can discard PC relative relocs if it doesn't need them when
63 linking with -Bsymbolic. We store the information in a field
64 extending the regular ELF linker hash table. */
65
66 /* This structure keeps track of the number of PC relative relocs we
67 have copied for a given symbol. */
68
69 struct elf_sh64_pcrel_relocs_copied
70 {
71 /* Next section. */
72 struct elf_sh64_pcrel_relocs_copied *next;
73 /* A section in dynobj. */
74 asection *section;
75 /* Number of relocs copied in this section. */
76 bfd_size_type count;
77 };
78
79 /* sh ELF linker hash entry. */
80
81 struct elf_sh64_link_hash_entry
82 {
83 struct elf_link_hash_entry root;
84
85 bfd_vma datalabel_got_offset;
86
87 /* Number of PC relative relocs copied for this symbol. */
88 struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied;
89 };
90
91 /* Traverse an sh ELF linker hash table. */
92
93 #define sh64_elf64_link_hash_traverse(table, func, info) \
94 (elf_link_hash_traverse \
95 ((table), \
96 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
97 (info)))
98
99 static bfd_reloc_status_type sh_elf64_ignore_reloc
100 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
101 static bfd_reloc_status_type sh_elf64_reloc
102 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
103
104 static reloc_howto_type sh_elf64_howto_table[] = {
105 /* No relocation. */
106 HOWTO (R_SH_NONE, /* type */
107 0, /* rightshift */
108 3, /* size (0 = byte, 1 = short, 2 = long) */
109 0, /* bitsize */
110 FALSE, /* pc_relative */
111 0, /* bitpos */
112 complain_overflow_dont, /* complain_on_overflow */
113 sh_elf64_ignore_reloc, /* special_function */
114 "R_SH_NONE", /* name */
115 FALSE, /* partial_inplace */
116 0, /* src_mask */
117 0, /* dst_mask */
118 FALSE), /* pcrel_offset */
119
120 /* 32 bit absolute relocation. Setting partial_inplace to TRUE and
121 src_mask to a non-zero value is similar to the COFF toolchain. */
122 HOWTO (R_SH_DIR32, /* type */
123 0, /* rightshift */
124 2, /* size (0 = byte, 1 = short, 2 = long) */
125 32, /* bitsize */
126 FALSE, /* pc_relative */
127 0, /* bitpos */
128 complain_overflow_bitfield, /* complain_on_overflow */
129 sh_elf64_reloc, /* special_function */
130 "R_SH_DIR32", /* name */
131 TRUE, /* partial_inplace */
132 0xffffffff, /* src_mask */
133 0xffffffff, /* dst_mask */
134 FALSE), /* pcrel_offset */
135
136 /* 32 bit PC relative relocation. */
137 HOWTO (R_SH_REL32, /* type */
138 0, /* rightshift */
139 2, /* size (0 = byte, 1 = short, 2 = long) */
140 32, /* bitsize */
141 TRUE, /* pc_relative */
142 0, /* bitpos */
143 complain_overflow_signed, /* complain_on_overflow */
144 sh_elf64_ignore_reloc, /* special_function */
145 "R_SH_REL32", /* name */
146 FALSE, /* partial_inplace */
147 0, /* src_mask */
148 0xffffffff, /* dst_mask */
149 TRUE), /* pcrel_offset */
150
151 /* For 32-bit sh, this is R_SH_DIR8WPN. */
152 EMPTY_HOWTO (3),
153
154 /* For 32-bit sh, this is R_SH_IND12W. */
155 EMPTY_HOWTO (4),
156
157 /* For 32-bit sh, this is R_SH_DIR8WPL. */
158 EMPTY_HOWTO (5),
159
160 /* For 32-bit sh, this is R_SH_DIR8WPZ. */
161 EMPTY_HOWTO (6),
162
163 /* For 32-bit sh, this is R_SH_DIR8BP. */
164 EMPTY_HOWTO (7),
165
166 /* For 32-bit sh, this is R_SH_DIR8W. */
167 EMPTY_HOWTO (8),
168
169 /* For 32-bit sh, this is R_SH_DIR8L. */
170 EMPTY_HOWTO (9),
171
172 EMPTY_HOWTO (10),
173 EMPTY_HOWTO (11),
174 EMPTY_HOWTO (12),
175 EMPTY_HOWTO (13),
176 EMPTY_HOWTO (14),
177 EMPTY_HOWTO (15),
178 EMPTY_HOWTO (16),
179 EMPTY_HOWTO (17),
180 EMPTY_HOWTO (18),
181 EMPTY_HOWTO (19),
182 EMPTY_HOWTO (20),
183 EMPTY_HOWTO (21),
184 EMPTY_HOWTO (22),
185 EMPTY_HOWTO (23),
186 EMPTY_HOWTO (24),
187
188 /* The remaining relocs are a GNU extension used for relaxing. The
189 final pass of the linker never needs to do anything with any of
190 these relocs. Any required operations are handled by the
191 relaxation code. */
192
193 /* A 16 bit switch table entry. This is generated for an expression
194 such as ``.word L1 - L2''. The offset holds the difference
195 between the reloc address and L2. */
196 HOWTO (R_SH_SWITCH16, /* type */
197 0, /* rightshift */
198 1, /* size (0 = byte, 1 = short, 2 = long) */
199 16, /* bitsize */
200 FALSE, /* pc_relative */
201 0, /* bitpos */
202 complain_overflow_unsigned, /* complain_on_overflow */
203 sh_elf64_ignore_reloc, /* special_function */
204 "R_SH_SWITCH16", /* name */
205 FALSE, /* partial_inplace */
206 0, /* src_mask */
207 0, /* dst_mask */
208 TRUE), /* pcrel_offset */
209
210 /* A 32 bit switch table entry. This is generated for an expression
211 such as ``.long L1 - L2''. The offset holds the difference
212 between the reloc address and L2. */
213 HOWTO (R_SH_SWITCH32, /* type */
214 0, /* rightshift */
215 2, /* size (0 = byte, 1 = short, 2 = long) */
216 32, /* bitsize */
217 FALSE, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_unsigned, /* complain_on_overflow */
220 sh_elf64_ignore_reloc, /* special_function */
221 "R_SH_SWITCH32", /* name */
222 FALSE, /* partial_inplace */
223 0, /* src_mask */
224 0, /* dst_mask */
225 TRUE), /* pcrel_offset */
226
227 /* For 32-bit sh, this is R_SH_USES. */
228 EMPTY_HOWTO (27),
229
230 /* For 32-bit sh, this is R_SH_COUNT. */
231 EMPTY_HOWTO (28),
232
233 /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation,
234 this might be emitted. When linker relaxation is implemented, we
235 might want to use it. */
236 EMPTY_HOWTO (29),
237
238 /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation,
239 this might be emitted. When linker relaxation is implemented, we
240 might want to use it. */
241 EMPTY_HOWTO (30),
242
243 /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation,
244 this might be emitted. When linker relaxation is implemented, we
245 might want to use it. */
246 EMPTY_HOWTO (31),
247
248 /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation,
249 this might be emitted. When linker relaxation is implemented, we
250 might want to use it. */
251 EMPTY_HOWTO (32),
252
253 /* An 8 bit switch table entry. This is generated for an expression
254 such as ``.word L1 - L2''. The offset holds the difference
255 between the reloc address and L2. */
256 HOWTO (R_SH_SWITCH8, /* type */
257 0, /* rightshift */
258 0, /* size (0 = byte, 1 = short, 2 = long) */
259 8, /* bitsize */
260 FALSE, /* pc_relative */
261 0, /* bitpos */
262 complain_overflow_unsigned, /* complain_on_overflow */
263 sh_elf64_ignore_reloc, /* special_function */
264 "R_SH_SWITCH8", /* name */
265 FALSE, /* partial_inplace */
266 0, /* src_mask */
267 0, /* dst_mask */
268 TRUE), /* pcrel_offset */
269
270 /* GNU extension to record C++ vtable hierarchy */
271 HOWTO (R_SH_GNU_VTINHERIT, /* type */
272 0, /* rightshift */
273 2, /* size (0 = byte, 1 = short, 2 = long) */
274 0, /* bitsize */
275 FALSE, /* pc_relative */
276 0, /* bitpos */
277 complain_overflow_dont, /* complain_on_overflow */
278 NULL, /* special_function */
279 "R_SH_GNU_VTINHERIT", /* name */
280 FALSE, /* partial_inplace */
281 0, /* src_mask */
282 0, /* dst_mask */
283 FALSE), /* pcrel_offset */
284
285 /* GNU extension to record C++ vtable member usage */
286 HOWTO (R_SH_GNU_VTENTRY, /* type */
287 0, /* rightshift */
288 2, /* size (0 = byte, 1 = short, 2 = long) */
289 0, /* bitsize */
290 FALSE, /* pc_relative */
291 0, /* bitpos */
292 complain_overflow_dont, /* complain_on_overflow */
293 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
294 "R_SH_GNU_VTENTRY", /* name */
295 FALSE, /* partial_inplace */
296 0, /* src_mask */
297 0, /* dst_mask */
298 FALSE), /* pcrel_offset */
299
300 /* For 32-bit sh, this is R_SH_LOOP_START. */
301 EMPTY_HOWTO (36),
302
303 /* For 32-bit sh, this is R_SH_LOOP_END. */
304 EMPTY_HOWTO (37),
305
306 EMPTY_HOWTO (38),
307 EMPTY_HOWTO (39),
308 EMPTY_HOWTO (40),
309 EMPTY_HOWTO (41),
310 EMPTY_HOWTO (42),
311 EMPTY_HOWTO (43),
312 EMPTY_HOWTO (44),
313
314 /* Used in SHLLI.L and SHLRI.L. */
315 HOWTO (R_SH_DIR5U, /* type */
316 0, /* rightshift */
317 2, /* size (0 = byte, 1 = short, 2 = long) */
318 5, /* bitsize */
319 FALSE, /* pc_relative */
320 10, /* bitpos */
321 complain_overflow_unsigned, /* complain_on_overflow */
322 bfd_elf_generic_reloc, /* special_function */
323 "R_SH_DIR5U", /* name */
324 FALSE, /* partial_inplace */
325 0, /* src_mask */
326 0xfc00, /* dst_mask */
327 FALSE), /* pcrel_offset */
328
329 /* Used in SHARI, SHLLI et al. */
330 HOWTO (R_SH_DIR6U, /* type */
331 0, /* rightshift */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
333 6, /* bitsize */
334 FALSE, /* pc_relative */
335 10, /* bitpos */
336 complain_overflow_unsigned, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_SH_DIR6U", /* name */
339 FALSE, /* partial_inplace */
340 0, /* src_mask */
341 0xfc00, /* dst_mask */
342 FALSE), /* pcrel_offset */
343
344 /* Used in BxxI, LDHI.L et al. */
345 HOWTO (R_SH_DIR6S, /* type */
346 0, /* rightshift */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
348 6, /* bitsize */
349 FALSE, /* pc_relative */
350 10, /* bitpos */
351 complain_overflow_signed, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_SH_DIR6S", /* name */
354 FALSE, /* partial_inplace */
355 0, /* src_mask */
356 0xfc00, /* dst_mask */
357 FALSE), /* pcrel_offset */
358
359 /* Used in ADDI, ANDI et al. */
360 HOWTO (R_SH_DIR10S, /* type */
361 0, /* rightshift */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
363 10, /* bitsize */
364 FALSE, /* pc_relative */
365 10, /* bitpos */
366 complain_overflow_signed, /* complain_on_overflow */
367 bfd_elf_generic_reloc, /* special_function */
368 "R_SH_DIR10S", /* name */
369 FALSE, /* partial_inplace */
370 0, /* src_mask */
371 0xffc00, /* dst_mask */
372 FALSE), /* pcrel_offset */
373
374 /* Used in LD.UW, ST.W et al. */
375 HOWTO (R_SH_DIR10SW, /* type */
376 1, /* rightshift */
377 2, /* size (0 = byte, 1 = short, 2 = long) */
378 11, /* bitsize */
379 FALSE, /* pc_relative */
380 10, /* bitpos */
381 complain_overflow_signed, /* complain_on_overflow */
382 bfd_elf_generic_reloc, /* special_function */
383 "R_SH_DIR10SW", /* name */
384 FALSE, /* partial_inplace */
385 0, /* src_mask */
386 0xffc00, /* dst_mask */
387 FALSE), /* pcrel_offset */
388
389 /* Used in LD.L, FLD.S et al. */
390 HOWTO (R_SH_DIR10SL, /* type */
391 2, /* rightshift */
392 2, /* size (0 = byte, 1 = short, 2 = long) */
393 12, /* bitsize */
394 FALSE, /* pc_relative */
395 10, /* bitpos */
396 complain_overflow_signed, /* complain_on_overflow */
397 bfd_elf_generic_reloc, /* special_function */
398 "R_SH_DIR10SL", /* name */
399 FALSE, /* partial_inplace */
400 0, /* src_mask */
401 0xffc00, /* dst_mask */
402 FALSE), /* pcrel_offset */
403
404 /* Used in FLD.D, FST.P et al. */
405 HOWTO (R_SH_DIR10SQ, /* type */
406 3, /* rightshift */
407 2, /* size (0 = byte, 1 = short, 2 = long) */
408 13, /* bitsize */
409 FALSE, /* pc_relative */
410 10, /* bitpos */
411 complain_overflow_signed, /* complain_on_overflow */
412 bfd_elf_generic_reloc, /* special_function */
413 "R_SH_DIR10SQ", /* name */
414 FALSE, /* partial_inplace */
415 0, /* src_mask */
416 0xffc00, /* dst_mask */
417 FALSE), /* pcrel_offset */
418
419 EMPTY_HOWTO (52),
420 EMPTY_HOWTO (53),
421 EMPTY_HOWTO (54),
422 EMPTY_HOWTO (55),
423 EMPTY_HOWTO (56),
424 EMPTY_HOWTO (57),
425 EMPTY_HOWTO (58),
426 EMPTY_HOWTO (59),
427 EMPTY_HOWTO (60),
428 EMPTY_HOWTO (61),
429 EMPTY_HOWTO (62),
430 EMPTY_HOWTO (63),
431 EMPTY_HOWTO (64),
432 EMPTY_HOWTO (65),
433 EMPTY_HOWTO (66),
434 EMPTY_HOWTO (67),
435 EMPTY_HOWTO (68),
436 EMPTY_HOWTO (69),
437 EMPTY_HOWTO (70),
438 EMPTY_HOWTO (71),
439 EMPTY_HOWTO (72),
440 EMPTY_HOWTO (73),
441 EMPTY_HOWTO (74),
442 EMPTY_HOWTO (75),
443 EMPTY_HOWTO (76),
444 EMPTY_HOWTO (77),
445 EMPTY_HOWTO (78),
446 EMPTY_HOWTO (79),
447 EMPTY_HOWTO (80),
448 EMPTY_HOWTO (81),
449 EMPTY_HOWTO (82),
450 EMPTY_HOWTO (83),
451 EMPTY_HOWTO (84),
452 EMPTY_HOWTO (85),
453 EMPTY_HOWTO (86),
454 EMPTY_HOWTO (87),
455 EMPTY_HOWTO (88),
456 EMPTY_HOWTO (89),
457 EMPTY_HOWTO (90),
458 EMPTY_HOWTO (91),
459 EMPTY_HOWTO (92),
460 EMPTY_HOWTO (93),
461 EMPTY_HOWTO (94),
462 EMPTY_HOWTO (95),
463 EMPTY_HOWTO (96),
464 EMPTY_HOWTO (97),
465 EMPTY_HOWTO (98),
466 EMPTY_HOWTO (99),
467 EMPTY_HOWTO (100),
468 EMPTY_HOWTO (101),
469 EMPTY_HOWTO (102),
470 EMPTY_HOWTO (103),
471 EMPTY_HOWTO (104),
472 EMPTY_HOWTO (105),
473 EMPTY_HOWTO (106),
474 EMPTY_HOWTO (107),
475 EMPTY_HOWTO (108),
476 EMPTY_HOWTO (109),
477 EMPTY_HOWTO (110),
478 EMPTY_HOWTO (111),
479 EMPTY_HOWTO (112),
480 EMPTY_HOWTO (113),
481 EMPTY_HOWTO (114),
482 EMPTY_HOWTO (115),
483 EMPTY_HOWTO (116),
484 EMPTY_HOWTO (117),
485 EMPTY_HOWTO (118),
486 EMPTY_HOWTO (119),
487 EMPTY_HOWTO (120),
488 EMPTY_HOWTO (121),
489 EMPTY_HOWTO (122),
490 EMPTY_HOWTO (123),
491 EMPTY_HOWTO (124),
492 EMPTY_HOWTO (125),
493 EMPTY_HOWTO (126),
494 EMPTY_HOWTO (127),
495 EMPTY_HOWTO (128),
496 EMPTY_HOWTO (129),
497 EMPTY_HOWTO (130),
498 EMPTY_HOWTO (131),
499 EMPTY_HOWTO (132),
500 EMPTY_HOWTO (133),
501 EMPTY_HOWTO (134),
502 EMPTY_HOWTO (135),
503 EMPTY_HOWTO (136),
504 EMPTY_HOWTO (137),
505 EMPTY_HOWTO (138),
506 EMPTY_HOWTO (139),
507 EMPTY_HOWTO (140),
508 EMPTY_HOWTO (141),
509 EMPTY_HOWTO (142),
510 EMPTY_HOWTO (143),
511 EMPTY_HOWTO (144),
512 EMPTY_HOWTO (145),
513 EMPTY_HOWTO (146),
514 EMPTY_HOWTO (147),
515 EMPTY_HOWTO (148),
516 EMPTY_HOWTO (149),
517 EMPTY_HOWTO (150),
518 EMPTY_HOWTO (151),
519 EMPTY_HOWTO (152),
520 EMPTY_HOWTO (153),
521 EMPTY_HOWTO (154),
522 EMPTY_HOWTO (155),
523 EMPTY_HOWTO (156),
524 EMPTY_HOWTO (157),
525 EMPTY_HOWTO (158),
526 EMPTY_HOWTO (159),
527
528 /* Relocs for dynamic linking for 32-bit SH would follow. We don't have
529 any dynamic linking support for 64-bit SH at present. */
530
531 EMPTY_HOWTO (160),
532 EMPTY_HOWTO (161),
533 EMPTY_HOWTO (162),
534 EMPTY_HOWTO (163),
535 EMPTY_HOWTO (164),
536 EMPTY_HOWTO (165),
537 EMPTY_HOWTO (166),
538 EMPTY_HOWTO (167),
539 EMPTY_HOWTO (168),
540
541 /* Back to SH5 relocations. */
542 /* Used in MOVI and SHORI (x & 65536). */
543 HOWTO (R_SH_GOT_LOW16, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 64, /* bitsize */
547 FALSE, /* pc_relative */
548 10, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 bfd_elf_generic_reloc, /* special_function */
551 "R_SH_GOT_LOW16", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0x3fffc00, /* dst_mask */
555 FALSE), /* pcrel_offset */
556
557 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
558 HOWTO (R_SH_GOT_MEDLOW16, /* type */
559 16, /* rightshift */
560 2, /* size (0 = byte, 1 = short, 2 = long) */
561 64, /* bitsize */
562 FALSE, /* pc_relative */
563 10, /* bitpos */
564 complain_overflow_dont, /* complain_on_overflow */
565 bfd_elf_generic_reloc, /* special_function */
566 "R_SH_GOT_MEDLOW16", /* name */
567 FALSE, /* partial_inplace */
568 0, /* src_mask */
569 0x3fffc00, /* dst_mask */
570 FALSE), /* pcrel_offset */
571
572 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
573 HOWTO (R_SH_GOT_MEDHI16, /* type */
574 32, /* rightshift */
575 2, /* size (0 = byte, 1 = short, 2 = long) */
576 64, /* bitsize */
577 FALSE, /* pc_relative */
578 10, /* bitpos */
579 complain_overflow_dont, /* complain_on_overflow */
580 bfd_elf_generic_reloc, /* special_function */
581 "R_SH_GOT_MEDHI16", /* name */
582 FALSE, /* partial_inplace */
583 0, /* src_mask */
584 0x3fffc00, /* dst_mask */
585 FALSE), /* pcrel_offset */
586
587 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
588 HOWTO (R_SH_GOT_HI16, /* type */
589 48, /* rightshift */
590 2, /* size (0 = byte, 1 = short, 2 = long) */
591 64, /* bitsize */
592 FALSE, /* pc_relative */
593 10, /* bitpos */
594 complain_overflow_dont, /* complain_on_overflow */
595 bfd_elf_generic_reloc, /* special_function */
596 "R_SH_GOT_HI16", /* name */
597 FALSE, /* partial_inplace */
598 0, /* src_mask */
599 0x3fffc00, /* dst_mask */
600 FALSE), /* pcrel_offset */
601
602 /* Used in MOVI and SHORI (x & 65536). */
603 HOWTO (R_SH_GOTPLT_LOW16, /* type */
604 0, /* rightshift */
605 2, /* size (0 = byte, 1 = short, 2 = long) */
606 64, /* bitsize */
607 FALSE, /* pc_relative */
608 10, /* bitpos */
609 complain_overflow_dont, /* complain_on_overflow */
610 bfd_elf_generic_reloc, /* special_function */
611 "R_SH_GOTPLT_LOW16", /* name */
612 FALSE, /* partial_inplace */
613 0, /* src_mask */
614 0x3fffc00, /* dst_mask */
615 FALSE), /* pcrel_offset */
616
617 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
618 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */
619 16, /* rightshift */
620 2, /* size (0 = byte, 1 = short, 2 = long) */
621 64, /* bitsize */
622 FALSE, /* pc_relative */
623 10, /* bitpos */
624 complain_overflow_dont, /* complain_on_overflow */
625 bfd_elf_generic_reloc, /* special_function */
626 "R_SH_GOTPLT_MEDLOW16", /* name */
627 FALSE, /* partial_inplace */
628 0, /* src_mask */
629 0x3fffc00, /* dst_mask */
630 FALSE), /* pcrel_offset */
631
632 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
633 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */
634 32, /* rightshift */
635 2, /* size (0 = byte, 1 = short, 2 = long) */
636 64, /* bitsize */
637 FALSE, /* pc_relative */
638 10, /* bitpos */
639 complain_overflow_dont, /* complain_on_overflow */
640 bfd_elf_generic_reloc, /* special_function */
641 "R_SH_GOTPLT_MEDHI16", /* name */
642 FALSE, /* partial_inplace */
643 0, /* src_mask */
644 0x3fffc00, /* dst_mask */
645 FALSE), /* pcrel_offset */
646
647 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
648 HOWTO (R_SH_GOTPLT_HI16, /* type */
649 48, /* rightshift */
650 2, /* size (0 = byte, 1 = short, 2 = long) */
651 64, /* bitsize */
652 FALSE, /* pc_relative */
653 10, /* bitpos */
654 complain_overflow_dont, /* complain_on_overflow */
655 bfd_elf_generic_reloc, /* special_function */
656 "R_SH_GOTPLT_HI16", /* name */
657 FALSE, /* partial_inplace */
658 0, /* src_mask */
659 0x3fffc00, /* dst_mask */
660 FALSE), /* pcrel_offset */
661
662 /* Used in MOVI and SHORI (x & 65536). */
663 HOWTO (R_SH_PLT_LOW16, /* type */
664 0, /* rightshift */
665 2, /* size (0 = byte, 1 = short, 2 = long) */
666 64, /* bitsize */
667 TRUE, /* pc_relative */
668 10, /* bitpos */
669 complain_overflow_dont, /* complain_on_overflow */
670 bfd_elf_generic_reloc, /* special_function */
671 "R_SH_PLT_LOW16", /* name */
672 FALSE, /* partial_inplace */
673 0, /* src_mask */
674 0x3fffc00, /* dst_mask */
675 TRUE), /* pcrel_offset */
676
677 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
678 HOWTO (R_SH_PLT_MEDLOW16, /* type */
679 16, /* rightshift */
680 2, /* size (0 = byte, 1 = short, 2 = long) */
681 64, /* bitsize */
682 TRUE, /* pc_relative */
683 10, /* bitpos */
684 complain_overflow_dont, /* complain_on_overflow */
685 bfd_elf_generic_reloc, /* special_function */
686 "R_SH_PLT_MEDLOW16", /* name */
687 FALSE, /* partial_inplace */
688 0, /* src_mask */
689 0x3fffc00, /* dst_mask */
690 TRUE), /* pcrel_offset */
691
692 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
693 HOWTO (R_SH_PLT_MEDHI16, /* type */
694 32, /* rightshift */
695 2, /* size (0 = byte, 1 = short, 2 = long) */
696 64, /* bitsize */
697 TRUE, /* pc_relative */
698 10, /* bitpos */
699 complain_overflow_dont, /* complain_on_overflow */
700 bfd_elf_generic_reloc, /* special_function */
701 "R_SH_PLT_MEDHI16", /* name */
702 FALSE, /* partial_inplace */
703 0, /* src_mask */
704 0x3fffc00, /* dst_mask */
705 TRUE), /* pcrel_offset */
706
707 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
708 HOWTO (R_SH_PLT_HI16, /* type */
709 48, /* rightshift */
710 2, /* size (0 = byte, 1 = short, 2 = long) */
711 64, /* bitsize */
712 TRUE, /* pc_relative */
713 10, /* bitpos */
714 complain_overflow_dont, /* complain_on_overflow */
715 bfd_elf_generic_reloc, /* special_function */
716 "R_SH_PLT_HI16", /* name */
717 FALSE, /* partial_inplace */
718 0, /* src_mask */
719 0x3fffc00, /* dst_mask */
720 TRUE), /* pcrel_offset */
721
722 /* Used in MOVI and SHORI (x & 65536). */
723 HOWTO (R_SH_GOTOFF_LOW16, /* type */
724 0, /* rightshift */
725 2, /* size (0 = byte, 1 = short, 2 = long) */
726 64, /* bitsize */
727 FALSE, /* pc_relative */
728 10, /* bitpos */
729 complain_overflow_dont, /* complain_on_overflow */
730 bfd_elf_generic_reloc, /* special_function */
731 "R_SH_GOTOFF_LOW16", /* name */
732 FALSE, /* partial_inplace */
733 0, /* src_mask */
734 0x3fffc00, /* dst_mask */
735 FALSE), /* pcrel_offset */
736
737 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
738 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */
739 16, /* rightshift */
740 2, /* size (0 = byte, 1 = short, 2 = long) */
741 64, /* bitsize */
742 FALSE, /* pc_relative */
743 10, /* bitpos */
744 complain_overflow_dont, /* complain_on_overflow */
745 bfd_elf_generic_reloc, /* special_function */
746 "R_SH_GOTOFF_MEDLOW16", /* name */
747 FALSE, /* partial_inplace */
748 0, /* src_mask */
749 0x3fffc00, /* dst_mask */
750 FALSE), /* pcrel_offset */
751
752 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
753 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */
754 32, /* rightshift */
755 2, /* size (0 = byte, 1 = short, 2 = long) */
756 64, /* bitsize */
757 FALSE, /* pc_relative */
758 10, /* bitpos */
759 complain_overflow_dont, /* complain_on_overflow */
760 bfd_elf_generic_reloc, /* special_function */
761 "R_SH_GOTOFF_MEDHI16", /* name */
762 FALSE, /* partial_inplace */
763 0, /* src_mask */
764 0x3fffc00, /* dst_mask */
765 FALSE), /* pcrel_offset */
766
767 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
768 HOWTO (R_SH_GOTOFF_HI16, /* type */
769 48, /* rightshift */
770 2, /* size (0 = byte, 1 = short, 2 = long) */
771 64, /* bitsize */
772 FALSE, /* pc_relative */
773 10, /* bitpos */
774 complain_overflow_dont, /* complain_on_overflow */
775 bfd_elf_generic_reloc, /* special_function */
776 "R_SH_GOTOFF_HI16", /* name */
777 FALSE, /* partial_inplace */
778 0, /* src_mask */
779 0x3fffc00, /* dst_mask */
780 FALSE), /* pcrel_offset */
781
782 /* Used in MOVI and SHORI (x & 65536). */
783 HOWTO (R_SH_GOTPC_LOW16, /* type */
784 0, /* rightshift */
785 2, /* size (0 = byte, 1 = short, 2 = long) */
786 64, /* bitsize */
787 TRUE, /* pc_relative */
788 10, /* bitpos */
789 complain_overflow_dont, /* complain_on_overflow */
790 bfd_elf_generic_reloc, /* special_function */
791 "R_SH_GOTPC_LOW16", /* name */
792 FALSE, /* partial_inplace */
793 0, /* src_mask */
794 0x3fffc00, /* dst_mask */
795 TRUE), /* pcrel_offset */
796
797 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
798 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */
799 16, /* rightshift */
800 2, /* size (0 = byte, 1 = short, 2 = long) */
801 64, /* bitsize */
802 TRUE, /* pc_relative */
803 10, /* bitpos */
804 complain_overflow_dont, /* complain_on_overflow */
805 bfd_elf_generic_reloc, /* special_function */
806 "R_SH_GOTPC_MEDLOW16", /* name */
807 FALSE, /* partial_inplace */
808 0, /* src_mask */
809 0x3fffc00, /* dst_mask */
810 TRUE), /* pcrel_offset */
811
812 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
813 HOWTO (R_SH_GOTPC_MEDHI16, /* type */
814 32, /* rightshift */
815 2, /* size (0 = byte, 1 = short, 2 = long) */
816 64, /* bitsize */
817 TRUE, /* pc_relative */
818 10, /* bitpos */
819 complain_overflow_dont, /* complain_on_overflow */
820 bfd_elf_generic_reloc, /* special_function */
821 "R_SH_GOTPC_MEDHI16", /* name */
822 FALSE, /* partial_inplace */
823 0, /* src_mask */
824 0x3fffc00, /* dst_mask */
825 TRUE), /* pcrel_offset */
826
827 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
828 HOWTO (R_SH_GOTPC_HI16, /* type */
829 48, /* rightshift */
830 2, /* size (0 = byte, 1 = short, 2 = long) */
831 64, /* bitsize */
832 TRUE, /* pc_relative */
833 10, /* bitpos */
834 complain_overflow_dont, /* complain_on_overflow */
835 bfd_elf_generic_reloc, /* special_function */
836 "R_SH_GOTPC_HI16", /* name */
837 FALSE, /* partial_inplace */
838 0, /* src_mask */
839 0x3fffc00, /* dst_mask */
840 TRUE), /* pcrel_offset */
841
842 /* Used in LD.L, FLD.S et al. */
843 HOWTO (R_SH_GOT10BY4, /* type */
844 2, /* rightshift */
845 2, /* size (0 = byte, 1 = short, 2 = long) */
846 12, /* bitsize */
847 FALSE, /* pc_relative */
848 10, /* bitpos */
849 complain_overflow_signed, /* complain_on_overflow */
850 bfd_elf_generic_reloc, /* special_function */
851 "R_SH_GOT10BY4", /* name */
852 FALSE, /* partial_inplace */
853 0, /* src_mask */
854 0xffc00, /* dst_mask */
855 FALSE), /* pcrel_offset */
856
857 /* Used in LD.L, FLD.S et al. */
858 HOWTO (R_SH_GOTPLT10BY4, /* type */
859 2, /* rightshift */
860 2, /* size (0 = byte, 1 = short, 2 = long) */
861 12, /* bitsize */
862 FALSE, /* pc_relative */
863 10, /* bitpos */
864 complain_overflow_signed, /* complain_on_overflow */
865 bfd_elf_generic_reloc, /* special_function */
866 "R_SH_GOTPLT10BY4", /* name */
867 FALSE, /* partial_inplace */
868 0, /* src_mask */
869 0xffc00, /* dst_mask */
870 FALSE), /* pcrel_offset */
871
872 /* Used in FLD.D, FST.P et al. */
873 HOWTO (R_SH_GOT10BY8, /* type */
874 3, /* rightshift */
875 2, /* size (0 = byte, 1 = short, 2 = long) */
876 13, /* bitsize */
877 FALSE, /* pc_relative */
878 10, /* bitpos */
879 complain_overflow_signed, /* complain_on_overflow */
880 bfd_elf_generic_reloc, /* special_function */
881 "R_SH_GOT10BY8", /* name */
882 FALSE, /* partial_inplace */
883 0, /* src_mask */
884 0xffc00, /* dst_mask */
885 FALSE), /* pcrel_offset */
886
887 /* Used in FLD.D, FST.P et al. */
888 HOWTO (R_SH_GOTPLT10BY8, /* type */
889 3, /* rightshift */
890 2, /* size (0 = byte, 1 = short, 2 = long) */
891 13, /* bitsize */
892 FALSE, /* pc_relative */
893 10, /* bitpos */
894 complain_overflow_signed, /* complain_on_overflow */
895 bfd_elf_generic_reloc, /* special_function */
896 "R_SH_GOTPLT10BY8", /* name */
897 FALSE, /* partial_inplace */
898 0, /* src_mask */
899 0xffc00, /* dst_mask */
900 FALSE), /* pcrel_offset */
901
902 HOWTO (R_SH_COPY64, /* type */
903 0, /* rightshift */
904 4, /* size (0 = byte, 1 = short, 2 = long) */
905 64, /* bitsize */
906 FALSE, /* pc_relative */
907 0, /* bitpos */
908 complain_overflow_dont, /* complain_on_overflow */
909 bfd_elf_generic_reloc, /* special_function */
910 "R_SH_COPY64", /* name */
911 FALSE, /* partial_inplace */
912 0, /* src_mask */
913 ((bfd_vma) 0) - 1, /* dst_mask */
914 FALSE), /* pcrel_offset */
915
916 HOWTO (R_SH_GLOB_DAT64, /* type */
917 0, /* rightshift */
918 4, /* size (0 = byte, 1 = short, 2 = long) */
919 64, /* bitsize */
920 FALSE, /* pc_relative */
921 0, /* bitpos */
922 complain_overflow_dont, /* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_SH_GLOB_DAT64", /* name */
925 FALSE, /* partial_inplace */
926 0, /* src_mask */
927 ((bfd_vma) 0) - 1, /* dst_mask */
928 FALSE), /* pcrel_offset */
929
930 HOWTO (R_SH_JMP_SLOT64, /* type */
931 0, /* rightshift */
932 4, /* size (0 = byte, 1 = short, 2 = long) */
933 64, /* bitsize */
934 FALSE, /* pc_relative */
935 0, /* bitpos */
936 complain_overflow_dont, /* complain_on_overflow */
937 bfd_elf_generic_reloc, /* special_function */
938 "R_SH_JMP_SLOT64", /* name */
939 FALSE, /* partial_inplace */
940 0, /* src_mask */
941 ((bfd_vma) 0) - 1, /* dst_mask */
942 FALSE), /* pcrel_offset */
943
944 HOWTO (R_SH_RELATIVE64, /* type */
945 0, /* rightshift */
946 4, /* size (0 = byte, 1 = short, 2 = long) */
947 64, /* bitsize */
948 FALSE, /* pc_relative */
949 0, /* bitpos */
950 complain_overflow_dont, /* complain_on_overflow */
951 bfd_elf_generic_reloc, /* special_function */
952 "R_SH_RELATIVE64", /* name */
953 FALSE, /* partial_inplace */
954 0, /* src_mask */
955 ((bfd_vma) 0) - 1, /* dst_mask */
956 FALSE), /* pcrel_offset */
957
958 EMPTY_HOWTO (197),
959 EMPTY_HOWTO (198),
960 EMPTY_HOWTO (199),
961 EMPTY_HOWTO (200),
962 EMPTY_HOWTO (201),
963 EMPTY_HOWTO (202),
964 EMPTY_HOWTO (203),
965 EMPTY_HOWTO (204),
966 EMPTY_HOWTO (205),
967 EMPTY_HOWTO (206),
968 EMPTY_HOWTO (207),
969 EMPTY_HOWTO (208),
970 EMPTY_HOWTO (209),
971 EMPTY_HOWTO (210),
972 EMPTY_HOWTO (211),
973 EMPTY_HOWTO (212),
974 EMPTY_HOWTO (213),
975 EMPTY_HOWTO (214),
976 EMPTY_HOWTO (215),
977 EMPTY_HOWTO (216),
978 EMPTY_HOWTO (217),
979 EMPTY_HOWTO (218),
980 EMPTY_HOWTO (219),
981 EMPTY_HOWTO (220),
982 EMPTY_HOWTO (221),
983 EMPTY_HOWTO (222),
984 EMPTY_HOWTO (223),
985 EMPTY_HOWTO (224),
986 EMPTY_HOWTO (225),
987 EMPTY_HOWTO (226),
988 EMPTY_HOWTO (227),
989 EMPTY_HOWTO (228),
990 EMPTY_HOWTO (229),
991 EMPTY_HOWTO (230),
992 EMPTY_HOWTO (231),
993 EMPTY_HOWTO (232),
994 EMPTY_HOWTO (233),
995 EMPTY_HOWTO (234),
996 EMPTY_HOWTO (235),
997 EMPTY_HOWTO (236),
998 EMPTY_HOWTO (237),
999 EMPTY_HOWTO (238),
1000 EMPTY_HOWTO (239),
1001 EMPTY_HOWTO (240),
1002 EMPTY_HOWTO (241),
1003
1004 /* Relocations for SHmedia code. None of these are partial_inplace or
1005 use the field being relocated. */
1006
1007 /* The assembler will generate this reloc before a block of SHmedia
1008 instructions. A section should be processed as assuming it contains
1009 data, unless this reloc is seen. Note that a block of SHcompact
1010 instructions are instead preceded by R_SH_CODE.
1011 This is currently not implemented, but should be used for SHmedia
1012 linker relaxation. */
1013 HOWTO (R_SH_SHMEDIA_CODE, /* type */
1014 0, /* rightshift */
1015 1, /* size (0 = byte, 1 = short, 2 = long) */
1016 0, /* bitsize */
1017 FALSE, /* pc_relative */
1018 0, /* bitpos */
1019 complain_overflow_unsigned, /* complain_on_overflow */
1020 sh_elf64_ignore_reloc, /* special_function */
1021 "R_SH_SHMEDIA_CODE", /* name */
1022 FALSE, /* partial_inplace */
1023 0, /* src_mask */
1024 0, /* dst_mask */
1025 FALSE), /* pcrel_offset */
1026
1027 /* The assembler will generate this reloc at a PTA or PTB instruction,
1028 and the linker checks the right type of target, or changes a PTA to a
1029 PTB, if the original insn was PT. */
1030 HOWTO (R_SH_PT_16, /* type */
1031 2, /* rightshift */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1033 18, /* bitsize */
1034 TRUE, /* pc_relative */
1035 10, /* bitpos */
1036 complain_overflow_signed, /* complain_on_overflow */
1037 bfd_elf_generic_reloc, /* special_function */
1038 "R_SH_PT_16", /* name */
1039 FALSE, /* partial_inplace */
1040 0, /* src_mask */
1041 0x3fffc00, /* dst_mask */
1042 TRUE), /* pcrel_offset */
1043
1044 /* Used in unexpanded MOVI. */
1045 HOWTO (R_SH_IMMS16, /* type */
1046 0, /* rightshift */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 16, /* bitsize */
1049 FALSE, /* pc_relative */
1050 10, /* bitpos */
1051 complain_overflow_signed, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_SH_IMMS16", /* name */
1054 FALSE, /* partial_inplace */
1055 0, /* src_mask */
1056 0x3fffc00, /* dst_mask */
1057 FALSE), /* pcrel_offset */
1058
1059 /* Used in SHORI. */
1060 HOWTO (R_SH_IMMU16, /* type */
1061 0, /* rightshift */
1062 2, /* size (0 = byte, 1 = short, 2 = long) */
1063 16, /* bitsize */
1064 FALSE, /* pc_relative */
1065 10, /* bitpos */
1066 complain_overflow_unsigned, /* complain_on_overflow */
1067 bfd_elf_generic_reloc, /* special_function */
1068 "R_SH_IMMU16", /* name */
1069 FALSE, /* partial_inplace */
1070 0, /* src_mask */
1071 0x3fffc00, /* dst_mask */
1072 FALSE), /* pcrel_offset */
1073
1074 /* Used in MOVI and SHORI (x & 65536). */
1075 HOWTO (R_SH_IMM_LOW16, /* type */
1076 0, /* rightshift */
1077 2, /* size (0 = byte, 1 = short, 2 = long) */
1078 64, /* bitsize */
1079 FALSE, /* pc_relative */
1080 10, /* bitpos */
1081 complain_overflow_dont, /* complain_on_overflow */
1082 bfd_elf_generic_reloc, /* special_function */
1083 "R_SH_IMM_LOW16", /* name */
1084 FALSE, /* partial_inplace */
1085 0, /* src_mask */
1086 0x3fffc00, /* dst_mask */
1087 FALSE), /* pcrel_offset */
1088
1089 /* Used in MOVI and SHORI ((x - $) & 65536). */
1090 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */
1091 0, /* rightshift */
1092 2, /* size (0 = byte, 1 = short, 2 = long) */
1093 64, /* bitsize */
1094 TRUE, /* pc_relative */
1095 10, /* bitpos */
1096 complain_overflow_dont, /* complain_on_overflow */
1097 bfd_elf_generic_reloc, /* special_function */
1098 "R_SH_IMM_LOW16_PCREL", /* name */
1099 FALSE, /* partial_inplace */
1100 0, /* src_mask */
1101 0x3fffc00, /* dst_mask */
1102 TRUE), /* pcrel_offset */
1103
1104 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1105 HOWTO (R_SH_IMM_MEDLOW16, /* type */
1106 16, /* rightshift */
1107 2, /* size (0 = byte, 1 = short, 2 = long) */
1108 64, /* bitsize */
1109 FALSE, /* pc_relative */
1110 10, /* bitpos */
1111 complain_overflow_dont, /* complain_on_overflow */
1112 bfd_elf_generic_reloc, /* special_function */
1113 "R_SH_IMM_MEDLOW16", /* name */
1114 FALSE, /* partial_inplace */
1115 0, /* src_mask */
1116 0x3fffc00, /* dst_mask */
1117 FALSE), /* pcrel_offset */
1118
1119 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
1120 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
1121 16, /* rightshift */
1122 2, /* size (0 = byte, 1 = short, 2 = long) */
1123 64, /* bitsize */
1124 TRUE, /* pc_relative */
1125 10, /* bitpos */
1126 complain_overflow_dont, /* complain_on_overflow */
1127 bfd_elf_generic_reloc, /* special_function */
1128 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1129 FALSE, /* partial_inplace */
1130 0, /* src_mask */
1131 0x3fffc00, /* dst_mask */
1132 TRUE), /* pcrel_offset */
1133
1134 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1135 HOWTO (R_SH_IMM_MEDHI16, /* type */
1136 32, /* rightshift */
1137 2, /* size (0 = byte, 1 = short, 2 = long) */
1138 64, /* bitsize */
1139 FALSE, /* pc_relative */
1140 10, /* bitpos */
1141 complain_overflow_dont, /* complain_on_overflow */
1142 bfd_elf_generic_reloc, /* special_function */
1143 "R_SH_IMM_MEDHI16", /* name */
1144 FALSE, /* partial_inplace */
1145 0, /* src_mask */
1146 0x3fffc00, /* dst_mask */
1147 FALSE), /* pcrel_offset */
1148
1149 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
1150 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
1151 32, /* rightshift */
1152 2, /* size (0 = byte, 1 = short, 2 = long) */
1153 64, /* bitsize */
1154 TRUE, /* pc_relative */
1155 10, /* bitpos */
1156 complain_overflow_dont, /* complain_on_overflow */
1157 bfd_elf_generic_reloc, /* special_function */
1158 "R_SH_IMM_MEDHI16_PCREL", /* name */
1159 FALSE, /* partial_inplace */
1160 0, /* src_mask */
1161 0x3fffc00, /* dst_mask */
1162 TRUE), /* pcrel_offset */
1163
1164 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1165 HOWTO (R_SH_IMM_HI16, /* type */
1166 48, /* rightshift */
1167 2, /* size (0 = byte, 1 = short, 2 = long) */
1168 64, /* bitsize */
1169 FALSE, /* pc_relative */
1170 10, /* bitpos */
1171 complain_overflow_dont, /* complain_on_overflow */
1172 bfd_elf_generic_reloc, /* special_function */
1173 "R_SH_IMM_HI16", /* name */
1174 FALSE, /* partial_inplace */
1175 0, /* src_mask */
1176 0x3fffc00, /* dst_mask */
1177 FALSE), /* pcrel_offset */
1178
1179 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
1180 HOWTO (R_SH_IMM_HI16_PCREL, /* type */
1181 48, /* rightshift */
1182 2, /* size (0 = byte, 1 = short, 2 = long) */
1183 64, /* bitsize */
1184 TRUE, /* pc_relative */
1185 10, /* bitpos */
1186 complain_overflow_dont, /* complain_on_overflow */
1187 bfd_elf_generic_reloc, /* special_function */
1188 "R_SH_IMM_HI16_PCREL", /* name */
1189 FALSE, /* partial_inplace */
1190 0, /* src_mask */
1191 0x3fffc00, /* dst_mask */
1192 TRUE), /* pcrel_offset */
1193
1194 /* For the .uaquad pseudo. */
1195 HOWTO (R_SH_64, /* type */
1196 0, /* rightshift */
1197 4, /* size (0 = byte, 1 = short, 2 = long) */
1198 64, /* bitsize */
1199 FALSE, /* pc_relative */
1200 0, /* bitpos */
1201 complain_overflow_dont, /* complain_on_overflow */
1202 bfd_elf_generic_reloc, /* special_function */
1203 "R_SH_64", /* name */
1204 FALSE, /* partial_inplace */
1205 0, /* src_mask */
1206 ((bfd_vma) 0) - 1, /* dst_mask */
1207 FALSE), /* pcrel_offset */
1208
1209 /* For the .uaquad pseudo, (x - $). */
1210 HOWTO (R_SH_64_PCREL, /* type */
1211 48, /* rightshift */
1212 2, /* size (0 = byte, 1 = short, 2 = long) */
1213 64, /* bitsize */
1214 TRUE, /* pc_relative */
1215 10, /* bitpos */
1216 complain_overflow_dont, /* complain_on_overflow */
1217 bfd_elf_generic_reloc, /* special_function */
1218 "R_SH_64_PCREL", /* name */
1219 FALSE, /* partial_inplace */
1220 0, /* src_mask */
1221 ((bfd_vma) 0) - 1, /* dst_mask */
1222 TRUE), /* pcrel_offset */
1223
1224 };
1225
1226 /* This function is used for relocs which are only used for relaxing,
1227 which the linker should otherwise ignore. */
1228
1229 static bfd_reloc_status_type
1230 sh_elf64_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
1231 asymbol *symbol ATTRIBUTE_UNUSED,
1232 void *data ATTRIBUTE_UNUSED, asection *input_section,
1233 bfd *output_bfd,
1234 char **error_message ATTRIBUTE_UNUSED)
1235 {
1236 if (output_bfd != NULL)
1237 reloc_entry->address += input_section->output_offset;
1238 return bfd_reloc_ok;
1239 }
1240
1241 /* This function is used for normal relocs. This used to be like the COFF
1242 function, and is almost certainly incorrect for other ELF targets.
1243
1244 See sh_elf_reloc in elf32-sh.c for the original. */
1245
1246 static bfd_reloc_status_type
1247 sh_elf64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
1248 void *data, asection *input_section, bfd *output_bfd,
1249 char **error_message ATTRIBUTE_UNUSED)
1250 {
1251 unsigned long insn;
1252 bfd_vma sym_value;
1253 enum elf_sh_reloc_type r_type;
1254 bfd_vma addr = reloc_entry->address;
1255 bfd_byte *hit_data = addr + (bfd_byte *) data;
1256
1257 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
1258
1259 if (output_bfd != NULL)
1260 {
1261 /* Partial linking--do nothing. */
1262 reloc_entry->address += input_section->output_offset;
1263 return bfd_reloc_ok;
1264 }
1265
1266 if (symbol_in != NULL
1267 && bfd_is_und_section (symbol_in->section))
1268 return bfd_reloc_undefined;
1269
1270 if (bfd_is_com_section (symbol_in->section))
1271 sym_value = 0;
1272 else
1273 sym_value = (symbol_in->value +
1274 symbol_in->section->output_section->vma +
1275 symbol_in->section->output_offset);
1276
1277 switch (r_type)
1278 {
1279 case R_SH_DIR32:
1280 insn = bfd_get_32 (abfd, hit_data);
1281 insn += sym_value + reloc_entry->addend;
1282 bfd_put_32 (abfd, insn, hit_data);
1283 break;
1284
1285 default:
1286 abort ();
1287 break;
1288 }
1289
1290 return bfd_reloc_ok;
1291 }
1292
1293 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
1294
1295 struct elf_reloc_map
1296 {
1297 bfd_reloc_code_real_type bfd_reloc_val;
1298 unsigned char elf_reloc_val;
1299 };
1300
1301 /* An array mapping BFD reloc codes to SH ELF relocs. */
1302
1303 static const struct elf_reloc_map sh64_reloc_map[] =
1304 {
1305 { BFD_RELOC_NONE, R_SH_NONE },
1306 { BFD_RELOC_32, R_SH_DIR32 },
1307 { BFD_RELOC_CTOR, R_SH_DIR32 },
1308 { BFD_RELOC_32_PCREL, R_SH_REL32 },
1309 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
1310 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
1311 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
1312 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
1313 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
1314 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
1315 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
1316 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
1317 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
1318 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
1319 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
1320 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
1321 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
1322 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
1323 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
1324 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
1325 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
1326 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
1327 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
1328 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
1329 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
1330 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
1331 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
1332 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
1333 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
1334 { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
1335 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
1336 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
1337 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
1338 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
1339 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
1340 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
1341 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
1342 { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
1343 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
1344 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
1345 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
1346 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
1347 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
1348 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
1349 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
1350 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
1351 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
1352 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
1353 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
1354 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
1355 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
1356 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
1357 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
1358 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
1359 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
1360 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
1361 { BFD_RELOC_64, R_SH_64 },
1362 { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
1363 };
1364
1365 /* Given a BFD reloc code, return the howto structure for the
1366 corresponding SH ELf reloc. */
1367
1368 static reloc_howto_type *
1369 sh_elf64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1370 bfd_reloc_code_real_type code)
1371 {
1372 unsigned int i;
1373
1374 for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++)
1375 {
1376 if (sh64_reloc_map[i].bfd_reloc_val == code)
1377 return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val];
1378 }
1379
1380 return NULL;
1381 }
1382
1383 static reloc_howto_type *
1384 sh_elf64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1385 const char *r_name)
1386 {
1387 unsigned int i;
1388
1389 for (i = 0;
1390 i < sizeof (sh_elf64_howto_table) / sizeof (sh_elf64_howto_table[0]);
1391 i++)
1392 if (sh_elf64_howto_table[i].name != NULL
1393 && strcasecmp (sh_elf64_howto_table[i].name, r_name) == 0)
1394 return &sh_elf64_howto_table[i];
1395
1396 return NULL;
1397 }
1398
1399 /* Given an ELF reloc, fill in the howto field of a relent.
1400
1401 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1402
1403 static bfd_boolean
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 if (r > (unsigned int) R_SH_64_PCREL)
1412 {
1413 /* xgettext:c-format */
1414 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r);
1415 bfd_set_error (bfd_error_bad_value);
1416 return FALSE;
1417 }
1418
1419 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
1420 BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2);
1421 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32);
1422 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
1423
1424 cache_ptr->howto = &sh_elf64_howto_table[r];
1425 return cache_ptr->howto != NULL;
1426 }
1427
1428 /* Relocate an SH ELF section.
1429
1430 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1431
1432 static bfd_boolean
1433 sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
1434 struct bfd_link_info *info, bfd *input_bfd,
1435 asection *input_section, bfd_byte *contents,
1436 Elf_Internal_Rela *relocs,
1437 Elf_Internal_Sym *local_syms,
1438 asection **local_sections)
1439 {
1440 Elf_Internal_Shdr *symtab_hdr;
1441 struct elf_link_hash_entry **sym_hashes;
1442 Elf_Internal_Rela *rel, *relend;
1443 bfd_vma *local_got_offsets;
1444 asection *sgot;
1445 asection *sgotplt;
1446 asection *splt;
1447 asection *sreloc;
1448 bfd_vma disp, dropped;
1449
1450 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1451 sym_hashes = elf_sym_hashes (input_bfd);
1452 local_got_offsets = elf_local_got_offsets (input_bfd);
1453
1454 sreloc = NULL;
1455
1456 rel = relocs;
1457 relend = relocs + input_section->reloc_count;
1458 for (; rel < relend; rel++)
1459 {
1460 int r_type;
1461 reloc_howto_type *howto;
1462 unsigned long r_symndx;
1463 Elf_Internal_Sym *sym;
1464 asection *sec;
1465 struct elf_link_hash_entry *h;
1466 bfd_vma relocation;
1467 bfd_vma addend = (bfd_vma)0;
1468 bfd_reloc_status_type r;
1469 int seen_stt_datalabel = 0;
1470
1471 r_symndx = ELF64_R_SYM (rel->r_info);
1472
1473 r_type = ELF64_R_TYPE (rel->r_info);
1474
1475 if (r_type == (int) R_SH_NONE)
1476 continue;
1477
1478 if (r_type < 0
1479 || r_type > R_SH_64_PCREL
1480 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
1481 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1482 || (r_type >= (int) R_SH_DIR8WPN
1483 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1484 || (r_type >= (int) R_SH_GNU_VTINHERIT
1485 && r_type <= (int) R_SH_PSHL)
1486 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
1487 && r_type <= R_SH_GOTPLT32)
1488 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
1489 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4))
1490 {
1491 bfd_set_error (bfd_error_bad_value);
1492 return FALSE;
1493 }
1494
1495 howto = sh_elf64_howto_table + r_type;
1496
1497 h = NULL;
1498 sym = NULL;
1499 sec = NULL;
1500 relocation = 0;
1501 if (r_symndx < symtab_hdr->sh_info)
1502 {
1503 sym = local_syms + r_symndx;
1504 sec = local_sections[r_symndx];
1505 relocation = ((sec->output_section->vma
1506 + sec->output_offset
1507 + sym->st_value)
1508 | ((sym->st_other & STO_SH5_ISA32) != 0));
1509
1510 /* A local symbol never has STO_SH5_ISA32, so we don't need
1511 datalabel processing here. Make sure this does not change
1512 without notice. */
1513 if ((sym->st_other & STO_SH5_ISA32) != 0)
1514 (*info->callbacks->reloc_dangerous)
1515 (info,
1516 _("unexpected STO_SH5_ISA32 on local symbol is not handled"),
1517 input_bfd, input_section, rel->r_offset);
1518
1519 if (sec != NULL && discarded_section (sec))
1520 /* Handled below. */
1521 ;
1522 else if (bfd_link_relocatable (info))
1523 {
1524 /* This is a relocatable link. We don't have to change
1525 anything, unless the reloc is against a section symbol,
1526 in which case we have to adjust according to where the
1527 section symbol winds up in the output section. */
1528 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1529 goto final_link_relocate;
1530
1531 continue;
1532 }
1533 else if (! howto->partial_inplace)
1534 {
1535 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1536 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0);
1537 }
1538 else if ((sec->flags & SEC_MERGE)
1539 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1540 {
1541 asection *msec;
1542
1543 if (howto->rightshift || howto->src_mask != 0xffffffff)
1544 {
1545 _bfd_error_handler
1546 /* xgettext:c-format */
1547 (_("%pB(%pA+%#" PRIx64 "): "
1548 "%s relocation against SEC_MERGE section"),
1549 input_bfd, input_section,
1550 (uint64_t) rel->r_offset, howto->name);
1551 return FALSE;
1552 }
1553
1554 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1555 msec = sec;
1556 addend =
1557 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1558 - relocation;
1559 addend += msec->output_section->vma + msec->output_offset;
1560 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1561 addend = 0;
1562 }
1563 }
1564 else
1565 {
1566 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1567
1568 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1569 while (h->root.type == bfd_link_hash_indirect
1570 || h->root.type == bfd_link_hash_warning)
1571 {
1572 /* If the reference passes a symbol marked with
1573 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1574 doesn't count. */
1575 seen_stt_datalabel |= h->type == STT_DATALABEL;
1576 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1577 }
1578
1579 if (h->root.type == bfd_link_hash_defined
1580 || h->root.type == bfd_link_hash_defweak)
1581 {
1582 sec = h->root.u.def.section;
1583 /* In these cases, we don't need the relocation value.
1584 We check specially because in some obscure cases
1585 sec->output_section will be NULL. */
1586 if (r_type == R_SH_GOTPC_LOW16
1587 || r_type == R_SH_GOTPC_MEDLOW16
1588 || r_type == R_SH_GOTPC_MEDHI16
1589 || r_type == R_SH_GOTPC_HI16
1590 || ((r_type == R_SH_PLT_LOW16
1591 || r_type == R_SH_PLT_MEDLOW16
1592 || r_type == R_SH_PLT_MEDHI16
1593 || r_type == R_SH_PLT_HI16)
1594 && h->plt.offset != (bfd_vma) -1)
1595 || ((r_type == R_SH_GOT_LOW16
1596 || r_type == R_SH_GOT_MEDLOW16
1597 || r_type == R_SH_GOT_MEDHI16
1598 || r_type == R_SH_GOT_HI16)
1599 && elf_hash_table (info)->dynamic_sections_created
1600 && (! bfd_link_pic (info)
1601 || (! info->symbolic && h->dynindx != -1)
1602 || !h->def_regular))
1603 /* The cases above are those in which relocation is
1604 overwritten in the switch block below. The cases
1605 below are those in which we must defer relocation
1606 to run-time, because we can't resolve absolute
1607 addresses when creating a shared library. */
1608 || (bfd_link_pic (info)
1609 && ((! info->symbolic && h->dynindx != -1)
1610 || !h->def_regular)
1611 && ((r_type == R_SH_64
1612 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1613 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1614 || r_type == R_SH_64_PCREL)
1615 && ((input_section->flags & SEC_ALLOC) != 0
1616 /* DWARF will emit R_SH_DIR32 relocations in its
1617 sections against symbols defined externally
1618 in shared libraries. We can't do anything
1619 with them here. */
1620 || (input_section->flags & SEC_DEBUGGING) != 0))
1621 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1622 sections because such sections are not SEC_ALLOC and
1623 thus ld.so will not process them. */
1624 || (sec->output_section == NULL
1625 && ((input_section->flags & SEC_DEBUGGING) != 0
1626 && h->def_dynamic)))
1627 ;
1628 else if (sec->output_section != NULL)
1629 relocation = ((h->root.u.def.value
1630 + sec->output_section->vma
1631 + sec->output_offset)
1632 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1633 symbol value, unless we've seen
1634 STT_DATALABEL on the way to it. */
1635 | ((h->other & STO_SH5_ISA32) != 0
1636 && ! seen_stt_datalabel));
1637 else if (!bfd_link_relocatable (info)
1638 && (_bfd_elf_section_offset (output_bfd, info,
1639 input_section,
1640 rel->r_offset)
1641 != (bfd_vma) -1))
1642 {
1643 _bfd_error_handler
1644 /* xgettext:c-format */
1645 (_("%pB(%pA+%#" PRIx64 "): "
1646 "unresolvable %s relocation against symbol `%s'"),
1647 input_bfd,
1648 input_section,
1649 (uint64_t) rel->r_offset,
1650 howto->name,
1651 h->root.root.string);
1652 }
1653 }
1654 else if (h->root.type == bfd_link_hash_undefweak)
1655 ;
1656 else if (info->unresolved_syms_in_objects == RM_IGNORE
1657 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1658 ;
1659 else if (!bfd_link_relocatable (info))
1660 (*info->callbacks->undefined_symbol)
1661 (info, h->root.root.string, input_bfd,
1662 input_section, rel->r_offset,
1663 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1664 || ELF_ST_VISIBILITY (h->other)));
1665 }
1666
1667 if (sec != NULL && discarded_section (sec))
1668 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1669 rel, 1, relend, howto, 0, contents);
1670
1671 if (bfd_link_relocatable (info))
1672 continue;
1673
1674 disp = (relocation
1675 - input_section->output_section->vma
1676 - input_section->output_offset
1677 - rel->r_offset);
1678 dropped = 0;
1679 switch ((int)r_type)
1680 {
1681 case R_SH_PT_16: dropped = disp & 2; break;
1682 case R_SH_DIR10SW: dropped = disp & 1; break;
1683 case R_SH_DIR10SL: dropped = disp & 3; break;
1684 case R_SH_DIR10SQ: dropped = disp & 7; break;
1685 }
1686 if (dropped != 0)
1687 {
1688 _bfd_error_handler
1689 /* xgettext:c-format */
1690 (_("%pB: error: unaligned relocation type %d at "
1691 "%08" PRIx64 " reloc %08" PRIx64 ""),
1692 input_bfd, (int) r_type,
1693 (uint64_t) rel->r_offset, (uint64_t) relocation);
1694 bfd_set_error (bfd_error_bad_value);
1695 return FALSE;
1696 }
1697 switch ((int)r_type)
1698 {
1699 case R_SH_64:
1700 case R_SH_64_PCREL:
1701 if (bfd_link_pic (info)
1702 && (input_section->flags & SEC_ALLOC) != 0
1703 && (r_type != R_SH_64_PCREL
1704 || (h != NULL
1705 && h->dynindx != -1
1706 && (! info->symbolic
1707 || !h->def_regular))))
1708 {
1709 Elf_Internal_Rela outrel;
1710 bfd_byte *loc;
1711 bfd_boolean skip, relocate;
1712
1713 /* When generating a shared object, these relocations
1714 are copied into the output file to be resolved at run
1715 time. */
1716
1717 if (sreloc == NULL)
1718 {
1719 sreloc = _bfd_elf_get_dynamic_reloc_section
1720 (input_bfd, input_section, /*rela?*/ TRUE);
1721 if (sreloc == NULL)
1722 return FALSE;
1723 }
1724
1725 skip = FALSE;
1726 relocate = FALSE;
1727
1728 outrel.r_offset
1729 = _bfd_elf_section_offset (output_bfd, info,
1730 input_section, rel->r_offset);
1731
1732 if (outrel.r_offset == (bfd_vma) -1)
1733 skip = TRUE;
1734 else if (outrel.r_offset == (bfd_vma) -2)
1735 skip = TRUE, relocate = TRUE;
1736
1737 outrel.r_offset += (input_section->output_section->vma
1738 + input_section->output_offset);
1739
1740 if (skip)
1741 memset (&outrel, 0, sizeof outrel);
1742 else if (r_type == R_SH_64_PCREL)
1743 {
1744 BFD_ASSERT (h != NULL && h->dynindx != -1);
1745 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1746 outrel.r_addend = rel->r_addend;
1747 }
1748 else
1749 {
1750 /* h->dynindx may be -1 if this symbol was marked to
1751 become local. */
1752 if (h == NULL
1753 || ((info->symbolic || h->dynindx == -1)
1754 && h->def_regular))
1755 {
1756 relocate = TRUE;
1757 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1758 outrel.r_addend = relocation + rel->r_addend;
1759 }
1760 else
1761 {
1762 BFD_ASSERT (h->dynindx != -1);
1763 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1764 outrel.r_addend = relocation + rel->r_addend;
1765 }
1766 }
1767
1768 loc = sreloc->contents;
1769 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1770 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1771
1772 /* If this reloc is against an external symbol, we do
1773 not want to fiddle with the addend. Otherwise, we
1774 need to include the symbol value so that it becomes
1775 an addend for the dynamic reloc. */
1776 if (! relocate)
1777 continue;
1778 }
1779 else if (r_type == R_SH_64)
1780 addend = rel->r_addend;
1781 goto final_link_relocate;
1782
1783 case R_SH_GOTPLT_LOW16:
1784 case R_SH_GOTPLT_MEDLOW16:
1785 case R_SH_GOTPLT_MEDHI16:
1786 case R_SH_GOTPLT_HI16:
1787 case R_SH_GOTPLT10BY4:
1788 case R_SH_GOTPLT10BY8:
1789 /* Relocation is to the entry for this symbol in the
1790 procedure linkage table. */
1791
1792 if (h == NULL
1793 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1794 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1795 || ! bfd_link_pic (info)
1796 || info->symbolic
1797 || h->dynindx == -1
1798 || h->plt.offset == (bfd_vma) -1
1799 || h->got.offset != (bfd_vma) -1)
1800 goto force_got;
1801
1802 /* Relocation is to the entry for this symbol in the global
1803 offset table extension for the procedure linkage table. */
1804 sgotplt = elf_hash_table (info)->sgotplt;
1805 BFD_ASSERT (sgotplt != NULL);
1806
1807 relocation = (sgotplt->output_offset
1808 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1809 - 1 + 3) * 8));
1810
1811 relocation -= GOT_BIAS;
1812
1813 goto final_link_relocate;
1814
1815 force_got:
1816 case R_SH_GOT_LOW16:
1817 case R_SH_GOT_MEDLOW16:
1818 case R_SH_GOT_MEDHI16:
1819 case R_SH_GOT_HI16:
1820 case R_SH_GOT10BY4:
1821 case R_SH_GOT10BY8:
1822 /* Relocation is to the entry for this symbol in the global
1823 offset table. */
1824 sgot = elf_hash_table (info)->sgot;
1825 BFD_ASSERT (sgot != NULL);
1826
1827 if (h != NULL)
1828 {
1829 bfd_vma off;
1830
1831 off = h->got.offset;
1832 if (seen_stt_datalabel)
1833 {
1834 struct elf_sh64_link_hash_entry *hsh;
1835
1836 hsh = (struct elf_sh64_link_hash_entry *)h;
1837 off = hsh->datalabel_got_offset;
1838 }
1839 BFD_ASSERT (off != (bfd_vma) -1);
1840
1841 if (! elf_hash_table (info)->dynamic_sections_created
1842 || (bfd_link_pic (info)
1843 && (info->symbolic || h->dynindx == -1
1844 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1845 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1846 && h->def_regular))
1847 {
1848 /* This is actually a static link, or it is a
1849 -Bsymbolic link and the symbol is defined
1850 locally, or the symbol was forced to be local
1851 because of a version file. We must initialize
1852 this entry in the global offset table. Since the
1853 offset must always be a multiple of 4, we use the
1854 least significant bit to record whether we have
1855 initialized it already.
1856
1857 When doing a dynamic link, we create a .rela.got
1858 relocation entry to initialize the value. This
1859 is done in the finish_dynamic_symbol routine. */
1860 if ((off & 1) != 0)
1861 off &= ~1;
1862 else
1863 {
1864 bfd_put_64 (output_bfd, relocation,
1865 sgot->contents + off);
1866 if (seen_stt_datalabel)
1867 {
1868 struct elf_sh64_link_hash_entry *hsh;
1869
1870 hsh = (struct elf_sh64_link_hash_entry *)h;
1871 hsh->datalabel_got_offset |= 1;
1872 }
1873 else
1874 h->got.offset |= 1;
1875 }
1876 }
1877
1878 relocation = sgot->output_offset + off;
1879 }
1880 else
1881 {
1882 bfd_vma off;
1883
1884 if (rel->r_addend)
1885 {
1886 BFD_ASSERT (local_got_offsets != NULL
1887 && (local_got_offsets[symtab_hdr->sh_info
1888 + r_symndx]
1889 != (bfd_vma) -1));
1890
1891 off = local_got_offsets[symtab_hdr->sh_info
1892 + r_symndx];
1893 }
1894 else
1895 {
1896 BFD_ASSERT (local_got_offsets != NULL
1897 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1898
1899 off = local_got_offsets[r_symndx];
1900 }
1901
1902 /* The offset must always be a multiple of 8. We use
1903 the least significant bit to record whether we have
1904 already generated the necessary reloc. */
1905 if ((off & 1) != 0)
1906 off &= ~1;
1907 else
1908 {
1909 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1910
1911 if (bfd_link_pic (info))
1912 {
1913 asection *s;
1914 Elf_Internal_Rela outrel;
1915 bfd_byte *loc;
1916
1917 s = elf_hash_table (info)->srelgot;
1918 BFD_ASSERT (s != NULL);
1919
1920 outrel.r_offset = (sgot->output_section->vma
1921 + sgot->output_offset
1922 + off);
1923 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1924 outrel.r_addend = relocation;
1925 loc = s->contents;
1926 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1927 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1928 }
1929
1930 if (rel->r_addend)
1931 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1932 else
1933 local_got_offsets[r_symndx] |= 1;
1934 }
1935
1936 relocation = sgot->output_offset + off;
1937 }
1938
1939 relocation -= GOT_BIAS;
1940
1941 goto final_link_relocate;
1942
1943 case R_SH_GOTOFF_LOW16:
1944 case R_SH_GOTOFF_MEDLOW16:
1945 case R_SH_GOTOFF_MEDHI16:
1946 case R_SH_GOTOFF_HI16:
1947 /* Relocation is relative to the start of the global offset
1948 table. */
1949
1950 sgot = elf_hash_table (info)->sgot;
1951 BFD_ASSERT (sgot != NULL);
1952
1953 /* Note that sgot->output_offset is not involved in this
1954 calculation. We always want the start of .got. If we
1955 defined _GLOBAL_OFFSET_TABLE in a different way, as is
1956 permitted by the ABI, we might have to change this
1957 calculation. */
1958 relocation -= sgot->output_section->vma;
1959
1960 relocation -= GOT_BIAS;
1961
1962 addend = rel->r_addend;
1963
1964 goto final_link_relocate;
1965
1966 case R_SH_GOTPC_LOW16:
1967 case R_SH_GOTPC_MEDLOW16:
1968 case R_SH_GOTPC_MEDHI16:
1969 case R_SH_GOTPC_HI16:
1970 /* Use global offset table as symbol value. */
1971
1972 sgot = elf_hash_table (info)->sgot;
1973 BFD_ASSERT (sgot != NULL);
1974
1975 relocation = sgot->output_section->vma;
1976
1977 relocation += GOT_BIAS;
1978
1979 addend = rel->r_addend;
1980
1981 goto final_link_relocate;
1982
1983 case R_SH_PLT_LOW16:
1984 case R_SH_PLT_MEDLOW16:
1985 case R_SH_PLT_MEDHI16:
1986 case R_SH_PLT_HI16:
1987 /* Relocation is to the entry for this symbol in the
1988 procedure linkage table. */
1989
1990 /* Resolve a PLT reloc against a local symbol directly,
1991 without using the procedure linkage table. */
1992 if (h == NULL)
1993 goto final_link_relocate;
1994
1995 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1996 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1997 goto final_link_relocate;
1998
1999 if (h->plt.offset == (bfd_vma) -1)
2000 {
2001 /* We didn't make a PLT entry for this symbol. This
2002 happens when statically linking PIC code, or when
2003 using -Bsymbolic. */
2004 goto final_link_relocate;
2005 }
2006
2007 splt = elf_hash_table (info)->splt;
2008 BFD_ASSERT (splt != NULL);
2009
2010 relocation = (splt->output_section->vma
2011 + splt->output_offset
2012 + h->plt.offset);
2013 relocation++;
2014
2015 addend = rel->r_addend;
2016
2017 goto final_link_relocate;
2018
2019 case R_SH_DIR32:
2020 case R_SH_SHMEDIA_CODE:
2021 case R_SH_PT_16:
2022 case R_SH_DIR5U:
2023 case R_SH_DIR6S:
2024 case R_SH_DIR6U:
2025 case R_SH_DIR10S:
2026 case R_SH_DIR10SW:
2027 case R_SH_DIR10SL:
2028 case R_SH_DIR10SQ:
2029 case R_SH_IMMS16:
2030 case R_SH_IMMU16:
2031 case R_SH_IMM_LOW16:
2032 case R_SH_IMM_LOW16_PCREL:
2033 case R_SH_IMM_MEDLOW16:
2034 case R_SH_IMM_MEDLOW16_PCREL:
2035 case R_SH_IMM_MEDHI16:
2036 case R_SH_IMM_MEDHI16_PCREL:
2037 case R_SH_IMM_HI16:
2038 case R_SH_IMM_HI16_PCREL:
2039 addend = rel->r_addend;
2040 /* Fall through. */
2041 case R_SH_REL32:
2042 final_link_relocate:
2043 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2044 contents, rel->r_offset,
2045 relocation, addend);
2046 break;
2047
2048 default:
2049 bfd_set_error (bfd_error_bad_value);
2050 return FALSE;
2051
2052 }
2053
2054 if (r != bfd_reloc_ok)
2055 {
2056 switch (r)
2057 {
2058 default:
2059 case bfd_reloc_outofrange:
2060 abort ();
2061 case bfd_reloc_overflow:
2062 {
2063 const char *name;
2064
2065 if (h != NULL)
2066 name = NULL;
2067 else
2068 {
2069 name = (bfd_elf_string_from_elf_section
2070 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2071 if (name == NULL)
2072 return FALSE;
2073 if (*name == '\0')
2074 name = bfd_section_name (input_bfd, sec);
2075 }
2076 (*info->callbacks->reloc_overflow)
2077 (info, (h ? &h->root : NULL), name, howto->name,
2078 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2079 }
2080 break;
2081 }
2082 }
2083 }
2084
2085 return TRUE;
2086 }
2087
2088 /* This is a version of bfd_generic_get_relocated_section_contents
2089 that uses sh_elf64_relocate_section.
2090
2091 See sh_elf_relocate_section in elf32-sh.c for the original. */
2092
2093 static bfd_byte *
2094 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2095 struct bfd_link_info *link_info,
2096 struct bfd_link_order *link_order,
2097 bfd_byte *data,
2098 bfd_boolean relocatable,
2099 asymbol **symbols)
2100 {
2101 Elf_Internal_Shdr *symtab_hdr;
2102 asection *input_section = link_order->u.indirect.section;
2103 bfd *input_bfd = input_section->owner;
2104 asection **sections = NULL;
2105 Elf_Internal_Rela *internal_relocs = NULL;
2106 Elf_Internal_Sym *isymbuf = NULL;
2107
2108 /* We only need to handle the case of relaxing, or of having a
2109 particular set of section contents, specially. */
2110 if (relocatable
2111 || elf_section_data (input_section)->this_hdr.contents == NULL)
2112 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2113 link_order, data,
2114 relocatable,
2115 symbols);
2116
2117 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2118
2119 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2120 input_section->size);
2121
2122 if ((input_section->flags & SEC_RELOC) != 0
2123 && input_section->reloc_count > 0)
2124 {
2125 Elf_Internal_Sym *isymp;
2126 Elf_Internal_Sym *isymend;
2127 asection **secpp;
2128
2129 /* Read this BFD's local symbols. */
2130 if (symtab_hdr->sh_info != 0)
2131 {
2132 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2133 if (isymbuf == NULL)
2134 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2135 symtab_hdr->sh_info, 0,
2136 NULL, NULL, NULL);
2137 if (isymbuf == NULL)
2138 goto error_return;
2139 }
2140
2141 internal_relocs = (_bfd_elf_link_read_relocs
2142 (input_bfd, input_section, NULL,
2143 (Elf_Internal_Rela *) NULL, FALSE));
2144 if (internal_relocs == NULL)
2145 goto error_return;
2146
2147 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2148 * sizeof (asection *));
2149 if (sections == NULL && symtab_hdr->sh_info > 0)
2150 goto error_return;
2151
2152 secpp = sections;
2153 isymend = isymbuf + symtab_hdr->sh_info;
2154 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2155 {
2156 asection *isec;
2157
2158 if (isymp->st_shndx == SHN_UNDEF)
2159 isec = bfd_und_section_ptr;
2160 else if (isymp->st_shndx == SHN_ABS)
2161 isec = bfd_abs_section_ptr;
2162 else if (isymp->st_shndx == SHN_COMMON)
2163 isec = bfd_com_section_ptr;
2164 else
2165 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2166
2167 *secpp = isec;
2168 }
2169
2170 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2171 input_section, data, internal_relocs,
2172 isymbuf, sections))
2173 goto error_return;
2174
2175 if (sections != NULL)
2176 free (sections);
2177 if (internal_relocs != elf_section_data (input_section)->relocs)
2178 free (internal_relocs);
2179 if (isymbuf != NULL
2180 && (unsigned char *) isymbuf != symtab_hdr->contents)
2181 free (isymbuf);
2182 }
2183
2184 return data;
2185
2186 error_return:
2187 if (sections != NULL)
2188 free (sections);
2189 if (internal_relocs != NULL
2190 && internal_relocs != elf_section_data (input_section)->relocs)
2191 free (internal_relocs);
2192 if (isymbuf != NULL
2193 && (unsigned char *) isymbuf != symtab_hdr->contents)
2194 free (isymbuf);
2195 return NULL;
2196 }
2197
2198 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2199
2200 static bfd_boolean
2201 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2202 Elf_Internal_Shdr *elf_section_hdr,
2203 asection *asect)
2204 {
2205 /* Code sections can only contain SH64 code, so mark them as such. */
2206 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2207 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2208
2209 return TRUE;
2210 }
2211
2212 static bfd_boolean
2213 sh_elf64_set_mach_from_flags (bfd *abfd)
2214 {
2215 flagword flags = elf_elfheader (abfd)->e_flags;
2216
2217 switch (flags & EF_SH_MACH_MASK)
2218 {
2219 case EF_SH5:
2220 /* Just one, but keep the switch construct to make additions easy. */
2221 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2222 break;
2223
2224 default:
2225 bfd_set_error (bfd_error_wrong_format);
2226 return FALSE;
2227 }
2228 return TRUE;
2229 }
2230
2231 /* Function to keep SH64 specific file flags.
2232
2233 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2234
2235 static bfd_boolean
2236 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2237 {
2238 BFD_ASSERT (! elf_flags_init (abfd)
2239 || elf_elfheader (abfd)->e_flags == flags);
2240
2241 elf_elfheader (abfd)->e_flags = flags;
2242 elf_flags_init (abfd) = TRUE;
2243 return sh_elf64_set_mach_from_flags (abfd);
2244 }
2245
2246 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2247 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2248
2249 static bfd_boolean
2250 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2251 {
2252 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2253 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2254 return TRUE;
2255
2256 /* Copy object attributes. */
2257 _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2258
2259 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2260 }
2261
2262 static bfd_boolean
2263 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2264 {
2265 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2266 }
2267
2268 static bfd_boolean
2269 sh_elf64_merge_private_data (bfd *ibfd, struct bfd_link_info *info)
2270 {
2271 bfd *obfd = info->output_bfd;
2272 flagword old_flags, new_flags;
2273
2274 if (! _bfd_generic_verify_endian_match (ibfd, info))
2275 return FALSE;
2276
2277 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2278 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2279 return TRUE;
2280
2281 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2282 {
2283 const char *msg;
2284
2285 if (bfd_get_arch_size (ibfd) == 32
2286 && bfd_get_arch_size (obfd) == 64)
2287 /* xgettext:c-format */
2288 msg = _("%pB: compiled as 32-bit object and %pB is 64-bit");
2289 else if (bfd_get_arch_size (ibfd) == 64
2290 && bfd_get_arch_size (obfd) == 32)
2291 /* xgettext:c-format */
2292 msg = _("%pB: compiled as 64-bit object and %pB is 32-bit");
2293 else
2294 /* xgettext:c-format */
2295 msg = _("%pB: object size does not match that of target %pB");
2296
2297 _bfd_error_handler (msg, ibfd, obfd);
2298 bfd_set_error (bfd_error_wrong_format);
2299 return FALSE;
2300 }
2301
2302 old_flags = elf_elfheader (obfd)->e_flags;
2303 new_flags = elf_elfheader (ibfd)->e_flags;
2304 if (! elf_flags_init (obfd))
2305 {
2306 /* This happens when ld starts out with a 'blank' output file. */
2307 elf_flags_init (obfd) = TRUE;
2308 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2309 }
2310 /* We don't allow linking in anything else than SH64 code, and since
2311 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2312 here as things change. */
2313 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2314 {
2315 _bfd_error_handler
2316 ("%pB: does not use the SH64 64-bit ABI as previous modules do", ibfd);
2317 bfd_set_error (bfd_error_bad_value);
2318 return FALSE;
2319 }
2320
2321 sh_elf64_copy_private_data_internal (ibfd, obfd);
2322
2323 /* I can't think of anything sane other than old_flags being EF_SH5 and
2324 that we need to preserve that. */
2325 elf_elfheader (obfd)->e_flags = old_flags;
2326
2327 return sh_elf64_set_mach_from_flags (obfd);
2328 }
2329
2330 /* Return the section that should be marked against GC for a given
2331 relocation. */
2332
2333 static asection *
2334 sh_elf64_gc_mark_hook (asection *sec,
2335 struct bfd_link_info *info,
2336 Elf_Internal_Rela *rel,
2337 struct elf_link_hash_entry *h,
2338 Elf_Internal_Sym *sym)
2339 {
2340 if (h != NULL)
2341 switch (ELF64_R_TYPE (rel->r_info))
2342 {
2343 case R_SH_GNU_VTINHERIT:
2344 case R_SH_GNU_VTENTRY:
2345 return NULL;
2346 }
2347
2348 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2349 }
2350
2351 /* Look through the relocs for a section during the first phase.
2352 Since we don't do .gots or .plts, we just need to consider the
2353 virtual table relocs for gc. */
2354
2355 static bfd_boolean
2356 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2357 asection *sec, const Elf_Internal_Rela *relocs)
2358 {
2359 Elf_Internal_Shdr *symtab_hdr;
2360 struct elf_link_hash_entry **sym_hashes;
2361 const Elf_Internal_Rela *rel;
2362 const Elf_Internal_Rela *rel_end;
2363 bfd *dynobj;
2364 bfd_vma *local_got_offsets;
2365 asection *sgot;
2366 asection *srelgot;
2367 asection *sreloc;
2368
2369 sreloc = NULL;
2370
2371 if (bfd_link_relocatable (info))
2372 return TRUE;
2373
2374 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2375 sym_hashes = elf_sym_hashes (abfd);
2376
2377 dynobj = elf_hash_table (info)->dynobj;
2378 local_got_offsets = elf_local_got_offsets (abfd);
2379
2380 rel_end = relocs + sec->reloc_count;
2381 for (rel = relocs; rel < rel_end; rel++)
2382 {
2383 struct elf_link_hash_entry *h;
2384 unsigned long r_symndx;
2385
2386 r_symndx = ELF64_R_SYM (rel->r_info);
2387 if (r_symndx < symtab_hdr->sh_info)
2388 h = NULL;
2389 else
2390 {
2391 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2392 while (h->root.type == bfd_link_hash_indirect
2393 || h->root.type == bfd_link_hash_warning)
2394 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2395 }
2396
2397 /* Some relocs require a global offset table. */
2398 if (dynobj == NULL)
2399 {
2400 switch (ELF64_R_TYPE (rel->r_info))
2401 {
2402 case R_SH_GOTPLT_LOW16:
2403 case R_SH_GOTPLT_MEDLOW16:
2404 case R_SH_GOTPLT_MEDHI16:
2405 case R_SH_GOTPLT_HI16:
2406 case R_SH_GOTPLT10BY4:
2407 case R_SH_GOTPLT10BY8:
2408 case R_SH_GOT_LOW16:
2409 case R_SH_GOT_MEDLOW16:
2410 case R_SH_GOT_MEDHI16:
2411 case R_SH_GOT_HI16:
2412 case R_SH_GOT10BY4:
2413 case R_SH_GOT10BY8:
2414 case R_SH_GOTOFF_LOW16:
2415 case R_SH_GOTOFF_MEDLOW16:
2416 case R_SH_GOTOFF_MEDHI16:
2417 case R_SH_GOTOFF_HI16:
2418 case R_SH_GOTPC_LOW16:
2419 case R_SH_GOTPC_MEDLOW16:
2420 case R_SH_GOTPC_MEDHI16:
2421 case R_SH_GOTPC_HI16:
2422 elf_hash_table (info)->dynobj = dynobj = abfd;
2423 if (! _bfd_elf_create_got_section (dynobj, info))
2424 return FALSE;
2425 break;
2426
2427 default:
2428 break;
2429 }
2430 }
2431
2432 switch (ELF64_R_TYPE (rel->r_info))
2433 {
2434 /* This relocation describes the C++ object vtable hierarchy.
2435 Reconstruct it for later use during GC. */
2436 case R_SH_GNU_VTINHERIT:
2437 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2438 return FALSE;
2439 break;
2440
2441 /* This relocation describes which C++ vtable entries are actually
2442 used. Record for later use during GC. */
2443 case R_SH_GNU_VTENTRY:
2444 BFD_ASSERT (h != NULL);
2445 if (h != NULL
2446 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2447 return FALSE;
2448 break;
2449
2450 force_got:
2451 case R_SH_GOT_LOW16:
2452 case R_SH_GOT_MEDLOW16:
2453 case R_SH_GOT_MEDHI16:
2454 case R_SH_GOT_HI16:
2455 case R_SH_GOT10BY4:
2456 case R_SH_GOT10BY8:
2457 /* This symbol requires a global offset table entry. */
2458
2459 sgot = elf_hash_table (info)->sgot;
2460 srelgot = elf_hash_table (info)->srelgot;
2461 BFD_ASSERT (sgot != NULL && srelgot != NULL);
2462
2463 if (h != NULL)
2464 {
2465 if (h->type == STT_DATALABEL)
2466 {
2467 struct elf_sh64_link_hash_entry *hsh;
2468
2469 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2470 hsh = (struct elf_sh64_link_hash_entry *)h;
2471 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2472 break;
2473
2474 hsh->datalabel_got_offset = sgot->size;
2475 }
2476 else
2477 {
2478 if (h->got.offset != (bfd_vma) -1)
2479 {
2480 /* We have already allocated space in the .got. */
2481 break;
2482 }
2483 h->got.offset = sgot->size;
2484 }
2485
2486 /* Make sure this symbol is output as a dynamic symbol. */
2487 if (h->dynindx == -1)
2488 {
2489 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2490 return FALSE;
2491 }
2492
2493 srelgot->size += sizeof (Elf64_External_Rela);
2494 }
2495 else
2496 {
2497 /* This is a global offset table entry for a local
2498 symbol. */
2499 if (local_got_offsets == NULL)
2500 {
2501 size_t size;
2502 register unsigned int i;
2503
2504 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2505 /* Reserve space for both the datalabel and
2506 codelabel local GOT offsets. */
2507 size *= 2;
2508 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2509 if (local_got_offsets == NULL)
2510 return FALSE;
2511 elf_local_got_offsets (abfd) = local_got_offsets;
2512 for (i = 0; i < symtab_hdr->sh_info; i++)
2513 local_got_offsets[i] = (bfd_vma) -1;
2514 for (; i < 2 * symtab_hdr->sh_info; i++)
2515 local_got_offsets[i] = (bfd_vma) -1;
2516 }
2517 if ((rel->r_addend & 1) != 0)
2518 {
2519 if (local_got_offsets[symtab_hdr->sh_info
2520 + r_symndx] != (bfd_vma) -1)
2521 {
2522 /* We have already allocated space in the .got. */
2523 break;
2524 }
2525 local_got_offsets[symtab_hdr->sh_info
2526 + r_symndx] = sgot->size;
2527 }
2528 else
2529 {
2530 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2531 {
2532 /* We have already allocated space in the .got. */
2533 break;
2534 }
2535 local_got_offsets[r_symndx] = sgot->size;
2536 }
2537
2538 if (bfd_link_pic (info))
2539 {
2540 /* If we are generating a shared object, we need to
2541 output a R_SH_RELATIVE reloc so that the dynamic
2542 linker can adjust this GOT entry. */
2543 srelgot->size += sizeof (Elf64_External_Rela);
2544 }
2545 }
2546
2547 sgot->size += 8;
2548
2549 break;
2550
2551 case R_SH_GOTPLT_LOW16:
2552 case R_SH_GOTPLT_MEDLOW16:
2553 case R_SH_GOTPLT_MEDHI16:
2554 case R_SH_GOTPLT_HI16:
2555 case R_SH_GOTPLT10BY4:
2556 case R_SH_GOTPLT10BY8:
2557 /* If this is a local symbol, we resolve it directly without
2558 creating a procedure linkage table entry. */
2559
2560 if (h == NULL
2561 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2562 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2563 || ! bfd_link_pic (info)
2564 || info->symbolic
2565 || h->dynindx == -1
2566 || h->got.offset != (bfd_vma) -1)
2567 goto force_got;
2568
2569 /* Make sure this symbol is output as a dynamic symbol. */
2570 if (h->dynindx == -1)
2571 {
2572 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2573 return FALSE;
2574 }
2575
2576 h->needs_plt = 1;
2577
2578 break;
2579
2580 case R_SH_PLT_LOW16:
2581 case R_SH_PLT_MEDLOW16:
2582 case R_SH_PLT_MEDHI16:
2583 case R_SH_PLT_HI16:
2584 /* This symbol requires a procedure linkage table entry. We
2585 actually build the entry in adjust_dynamic_symbol,
2586 because this might be a case of linking PIC code which is
2587 never referenced by a dynamic object, in which case we
2588 don't need to generate a procedure linkage table entry
2589 after all. */
2590
2591 /* If this is a local symbol, we resolve it directly without
2592 creating a procedure linkage table entry. */
2593 if (h == NULL)
2594 continue;
2595
2596 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2597 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2598 break;
2599
2600 h->needs_plt = 1;
2601
2602 break;
2603
2604 case R_SH_64:
2605 case R_SH_64_PCREL:
2606 if (h != NULL)
2607 h->non_got_ref = 1;
2608
2609 /* If we are creating a shared library, and this is a reloc
2610 against a global symbol, or a non PC relative reloc
2611 against a local symbol, then we need to copy the reloc
2612 into the shared library. However, if we are linking with
2613 -Bsymbolic, we do not need to copy a reloc against a
2614 global symbol which is defined in an object we are
2615 including in the link (i.e., DEF_REGULAR is set). At
2616 this point we have not seen all the input files, so it is
2617 possible that DEF_REGULAR is not set now but will be set
2618 later (it is never cleared). We account for that
2619 possibility below by storing information in the
2620 pcrel_relocs_copied field of the hash table entry. */
2621 if (bfd_link_pic (info)
2622 && (sec->flags & SEC_ALLOC) != 0
2623 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2624 || (h != NULL
2625 && (! info->symbolic
2626 || !h->def_regular))))
2627 {
2628 /* When creating a shared object, we must copy these
2629 reloc types into the output file. We create a reloc
2630 section in dynobj and make room for this reloc. */
2631 if (sreloc == NULL)
2632 {
2633 sreloc = _bfd_elf_make_dynamic_reloc_section
2634 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
2635
2636 if (sreloc == NULL)
2637 return FALSE;
2638 }
2639
2640 sreloc->size += sizeof (Elf64_External_Rela);
2641
2642 /* If we are linking with -Bsymbolic, and this is a
2643 global symbol, we count the number of PC relative
2644 relocations we have entered for this symbol, so that
2645 we can discard them again if the symbol is later
2646 defined by a regular object. Note that this function
2647 is only called if we are using an elf_sh linker
2648 hash table, which means that h is really a pointer to
2649 an elf_sh_link_hash_entry. */
2650 if (h != NULL && info->symbolic
2651 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2652 {
2653 struct elf_sh64_link_hash_entry *eh;
2654 struct elf_sh64_pcrel_relocs_copied *p;
2655
2656 eh = (struct elf_sh64_link_hash_entry *) h;
2657
2658 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2659 if (p->section == sreloc)
2660 break;
2661
2662 if (p == NULL)
2663 {
2664 p = ((struct elf_sh64_pcrel_relocs_copied *)
2665 bfd_alloc (dynobj, sizeof *p));
2666 if (p == NULL)
2667 return FALSE;
2668 p->next = eh->pcrel_relocs_copied;
2669 eh->pcrel_relocs_copied = p;
2670 p->section = sreloc;
2671 p->count = 0;
2672 }
2673
2674 ++p->count;
2675 }
2676 }
2677
2678 break;
2679 }
2680 }
2681
2682 return TRUE;
2683 }
2684
2685 static int
2686 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2687 {
2688 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2689 return STT_DATALABEL;
2690
2691 return type;
2692 }
2693
2694 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2695 Either file can presumably exist without the other, but do not differ
2696 in elf-size-ness. How to share?
2697
2698 Hook called by the linker routine which adds symbols from an object
2699 file. We must make indirect symbols for undefined symbols marked with
2700 STT_DATALABEL, so relocations passing them will pick up that attribute
2701 and neutralize STO_SH5_ISA32 found on the symbol definition.
2702
2703 There is a problem, though: We want to fill in the hash-table entry for
2704 this symbol and signal to the caller that no further processing is
2705 needed. But we don't have the index for this hash-table entry. We
2706 rely here on that the current entry is the first hash-entry with NULL,
2707 which seems brittle. Also, iterating over the hash-table to find that
2708 entry is a linear operation on the number of symbols in this input
2709 file, and this function should take constant time, so that's not good
2710 too. Only comfort is that DataLabel references should only be found in
2711 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2712 into adding an option to elf_add_symbol_hook (preferably) for the index
2713 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2714 (not so good). */
2715
2716 static bfd_boolean
2717 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2718 Elf_Internal_Sym *sym, const char **namep,
2719 flagword *flagsp ATTRIBUTE_UNUSED,
2720 asection **secp, bfd_vma *valp)
2721 {
2722 /* We want to do this for relocatable as well as final linking. */
2723 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2724 && is_elf_hash_table (info->hash))
2725 {
2726 struct elf_link_hash_entry *h;
2727
2728 /* For relocatable links, we register the DataLabel sym in its own
2729 right, and tweak the name when it's output. Otherwise, we make
2730 an indirect symbol of it. */
2731 flagword flags
2732 = bfd_link_relocatable (info) || info->emitrelocations
2733 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2734
2735 char *dl_name
2736 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2737 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2738
2739 BFD_ASSERT (sym_hash != NULL);
2740
2741 /* Allocation may fail. */
2742 if (dl_name == NULL)
2743 return FALSE;
2744
2745 strcpy (dl_name, *namep);
2746 strcat (dl_name, DATALABEL_SUFFIX);
2747
2748 h = (struct elf_link_hash_entry *)
2749 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2750
2751 if (h == NULL)
2752 {
2753 /* No previous datalabel symbol. Make one. */
2754 struct bfd_link_hash_entry *bh = NULL;
2755 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2756
2757 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2758 flags, *secp, *valp,
2759 *namep, FALSE,
2760 bed->collect, &bh))
2761 {
2762 free (dl_name);
2763 return FALSE;
2764 }
2765
2766 h = (struct elf_link_hash_entry *) bh;
2767 h->non_elf = 0;
2768 h->type = STT_DATALABEL;
2769 }
2770 else
2771 /* If a new symbol was created, it holds the allocated name.
2772 Otherwise, we don't need it anymore and should deallocate it. */
2773 free (dl_name);
2774
2775 if (h->type != STT_DATALABEL
2776 || ((bfd_link_relocatable (info) || info->emitrelocations)
2777 && h->root.type != bfd_link_hash_undefined)
2778 || (! bfd_link_relocatable (info) && !info->emitrelocations
2779 && h->root.type != bfd_link_hash_indirect))
2780 {
2781 /* Make sure we don't get confused on invalid input. */
2782 _bfd_error_handler
2783 (_("%pB: encountered datalabel symbol in input"), abfd);
2784 bfd_set_error (bfd_error_bad_value);
2785 return FALSE;
2786 }
2787
2788 /* Now find the hash-table slot for this entry and fill it in. */
2789 while (*sym_hash != NULL)
2790 sym_hash++;
2791 *sym_hash = h;
2792
2793 /* Signal to caller to skip this symbol - we've handled it. */
2794 *namep = NULL;
2795 }
2796
2797 return TRUE;
2798 }
2799
2800 /* This hook function is called before the linker writes out a global
2801 symbol. For relocatable links, DataLabel symbols will be present in
2802 linker output. We cut off the special suffix on those symbols, so the
2803 right name appears in the output.
2804
2805 When linking and emitting relocations, there can appear global symbols
2806 that are not referenced by relocs, but rather only implicitly through
2807 DataLabel references, a relation that is not visible to the linker.
2808 Since no stripping of global symbols in done when doing such linking,
2809 we don't need to look up and make sure to emit the main symbol for each
2810 DataLabel symbol. */
2811
2812 static int
2813 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2814 const char *cname,
2815 Elf_Internal_Sym *sym,
2816 asection *input_sec ATTRIBUTE_UNUSED,
2817 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2818 {
2819 char *name = (char *) cname;
2820
2821 if (bfd_link_relocatable (info) || info->emitrelocations)
2822 {
2823 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2824 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2825 }
2826
2827 return 1;
2828 }
2829
2830 /* Set bit 0 on the entry address; it always points to SHmedia code. This
2831 is mostly for symmetry with the 32-bit format, where code can be
2832 SHcompact and we need to make a distinction to make sure execution
2833 starts in the right ISA mode. It is also convenient for a loader,
2834 which would otherwise have to set this bit when loading a TR register
2835 before jumping to the program entry. */
2836
2837 static void
2838 sh64_elf64_final_write_processing (bfd *abfd,
2839 bfd_boolean linker ATTRIBUTE_UNUSED)
2840 {
2841 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
2842 numerically, but we currently lack the infrastructure to recognize
2843 that: The entry symbol, and info whether it is numeric or a symbol
2844 name is kept private in the linker. */
2845 if (elf_elfheader (abfd)->e_type == ET_EXEC)
2846 elf_elfheader (abfd)->e_entry |= 1;
2847 }
2848
2849 /* First entry in an absolute procedure linkage table look like this. */
2850
2851 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
2852 {
2853 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
2854 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
2855 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
2856 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2857 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2858 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2859 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2860 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2861 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2862 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2863 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2864 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2865 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2866 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2867 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2868 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2869 };
2870
2871 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
2872 {
2873 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
2874 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
2875 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
2876 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2877 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2878 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2879 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2880 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2881 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2882 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2883 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2884 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2885 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2886 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2887 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2888 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2889 };
2890
2891 /* Sebsequent entries in an absolute procedure linkage table look like
2892 this. */
2893
2894 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
2895 {
2896 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
2897 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
2898 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
2899 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
2900 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
2901 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2902 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2903 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2904 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
2905 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
2906 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
2907 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2908 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2909 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2910 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2911 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2912 };
2913
2914 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
2915 {
2916 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
2917 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2918 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2919 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2920 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
2921 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2922 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2923 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2924 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
2925 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
2926 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
2927 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2928 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2929 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2930 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2931 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2932 };
2933
2934 /* Entries in a PIC procedure linkage table look like this. */
2935
2936 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
2937 {
2938 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
2939 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
2940 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
2941 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2942 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2943 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2944 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2945 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2946 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
2947 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
2948 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2949 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2950 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2951 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2952 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2953 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2954 };
2955
2956 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
2957 {
2958 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
2959 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
2960 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
2961 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2962 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2963 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2964 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2965 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2966 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
2967 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
2968 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2969 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2970 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2971 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2972 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2973 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2974 };
2975
2976 static const bfd_byte *elf_sh64_plt0_entry;
2977 static const bfd_byte *elf_sh64_plt_entry;
2978 static const bfd_byte *elf_sh64_pic_plt_entry;
2979
2980 /* Create an entry in an sh ELF linker hash table. */
2981
2982 static struct bfd_hash_entry *
2983 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
2984 struct bfd_hash_table *table,
2985 const char *string)
2986 {
2987 struct elf_sh64_link_hash_entry *ret =
2988 (struct elf_sh64_link_hash_entry *) entry;
2989
2990 /* Allocate the structure if it has not already been allocated by a
2991 subclass. */
2992 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
2993 ret = ((struct elf_sh64_link_hash_entry *)
2994 bfd_hash_allocate (table,
2995 sizeof (struct elf_sh64_link_hash_entry)));
2996 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
2997 return (struct bfd_hash_entry *) ret;
2998
2999 /* Call the allocation method of the superclass. */
3000 ret = ((struct elf_sh64_link_hash_entry *)
3001 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3002 table, string));
3003 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3004 {
3005 ret->pcrel_relocs_copied = NULL;
3006 ret->datalabel_got_offset = (bfd_vma) -1;
3007 }
3008
3009 return (struct bfd_hash_entry *) ret;
3010 }
3011
3012 /* Create an sh64 ELF linker hash table. */
3013
3014 static struct bfd_link_hash_table *
3015 sh64_elf64_link_hash_table_create (bfd *abfd)
3016 {
3017 struct elf_link_hash_table *ret;
3018
3019 ret = (struct elf_link_hash_table *) bfd_zmalloc (sizeof (* ret));
3020 if (ret == (struct elf_link_hash_table *) NULL)
3021 return NULL;
3022
3023 if (!_bfd_elf_link_hash_table_init (ret, abfd,
3024 sh64_elf64_link_hash_newfunc,
3025 sizeof (struct elf_sh64_link_hash_entry),
3026 GENERIC_ELF_DATA))
3027 {
3028 free (ret);
3029 return NULL;
3030 }
3031
3032 return &ret->root;
3033 }
3034
3035 inline static void
3036 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
3037 {
3038 bfd_put_32 (output_bfd,
3039 bfd_get_32 (output_bfd, addr)
3040 | ((value >> 6) & 0x3fffc00),
3041 addr);
3042 bfd_put_32 (output_bfd,
3043 bfd_get_32 (output_bfd, addr + 4)
3044 | ((value << 10) & 0x3fffc00),
3045 addr + 4);
3046 }
3047
3048 inline static void
3049 movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr)
3050 {
3051 bfd_put_32 (output_bfd,
3052 bfd_get_32 (output_bfd, addr)
3053 | ((value >> 38) & 0x3fffc00),
3054 addr);
3055 bfd_put_32 (output_bfd,
3056 bfd_get_32 (output_bfd, addr + 4)
3057 | ((value >> 22) & 0x3fffc00),
3058 addr + 4);
3059 bfd_put_32 (output_bfd,
3060 bfd_get_32 (output_bfd, addr + 8)
3061 | ((value >> 6) & 0x3fffc00),
3062 addr + 8);
3063 bfd_put_32 (output_bfd,
3064 bfd_get_32 (output_bfd, addr + 12)
3065 | ((value << 10) & 0x3fffc00),
3066 addr + 12);
3067 }
3068
3069 /* Create dynamic sections when linking against a dynamic object. */
3070
3071 static bfd_boolean
3072 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3073 {
3074 flagword flags, pltflags;
3075 register asection *s;
3076 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3077 int ptralign = 0;
3078
3079 switch (bed->s->arch_size)
3080 {
3081 case 32:
3082 ptralign = 2;
3083 break;
3084
3085 case 64:
3086 ptralign = 3;
3087 break;
3088
3089 default:
3090 bfd_set_error (bfd_error_bad_value);
3091 return FALSE;
3092 }
3093
3094 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3095 .rel[a].bss sections. */
3096
3097 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3098 | SEC_LINKER_CREATED);
3099
3100 pltflags = flags;
3101 pltflags |= SEC_CODE;
3102 if (bed->plt_not_loaded)
3103 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3104 if (bed->plt_readonly)
3105 pltflags |= SEC_READONLY;
3106
3107 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
3108 if (s == NULL
3109 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3110 return FALSE;
3111
3112 if (bed->want_plt_sym)
3113 {
3114 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3115 .plt section. */
3116 struct elf_link_hash_entry *h;
3117 struct bfd_link_hash_entry *bh = NULL;
3118
3119 if (! (_bfd_generic_link_add_one_symbol
3120 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3121 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3122 return FALSE;
3123
3124 h = (struct elf_link_hash_entry *) bh;
3125 h->def_regular = 1;
3126 h->type = STT_OBJECT;
3127 elf_hash_table (info)->hplt = h;
3128
3129 if (bfd_link_pic (info)
3130 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3131 return FALSE;
3132 }
3133
3134 s = bfd_make_section_anyway_with_flags (abfd,
3135 bed->default_use_rela_p
3136 ? ".rela.plt" : ".rel.plt",
3137 flags | SEC_READONLY);
3138 if (s == NULL
3139 || ! bfd_set_section_alignment (abfd, s, ptralign))
3140 return FALSE;
3141
3142 if (! _bfd_elf_create_got_section (abfd, info))
3143 return FALSE;
3144
3145 if (bed->want_dynbss)
3146 {
3147 /* The .dynbss section is a place to put symbols which are defined
3148 by dynamic objects, are referenced by regular objects, and are
3149 not functions. We must allocate space for them in the process
3150 image and use a R_*_COPY reloc to tell the dynamic linker to
3151 initialize them at run time. The linker script puts the .dynbss
3152 section into the .bss section of the final image. */
3153 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3154 SEC_ALLOC | SEC_LINKER_CREATED);
3155 if (s == NULL)
3156 return FALSE;
3157
3158 /* The .rel[a].bss section holds copy relocs. This section is not
3159 normally needed. We need to create it here, though, so that the
3160 linker will map it to an output section. We can't just create it
3161 only if we need it, because we will not know whether we need it
3162 until we have seen all the input files, and the first time the
3163 main linker code calls BFD after examining all the input files
3164 (size_dynamic_sections) the input sections have already been
3165 mapped to the output sections. If the section turns out not to
3166 be needed, we can discard it later. We will never need this
3167 section when generating a shared object, since they do not use
3168 copy relocs. */
3169 if (! bfd_link_pic (info))
3170 {
3171 s = bfd_make_section_anyway_with_flags (abfd,
3172 (bed->default_use_rela_p
3173 ? ".rela.bss" : ".rel.bss"),
3174 flags | SEC_READONLY);
3175 if (s == NULL
3176 || ! bfd_set_section_alignment (abfd, s, ptralign))
3177 return FALSE;
3178 }
3179 }
3180
3181 return TRUE;
3182 }
3183 \f
3184 /* Adjust a symbol defined by a dynamic object and referenced by a
3185 regular object. The current definition is in some section of the
3186 dynamic object, but we're not including those sections. We have to
3187 change the definition to something the rest of the link can
3188 understand. */
3189
3190 static bfd_boolean
3191 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3192 struct elf_link_hash_entry *h)
3193 {
3194 bfd *dynobj;
3195 asection *s;
3196
3197 dynobj = elf_hash_table (info)->dynobj;
3198
3199 /* Make sure we know what is going on here. */
3200 BFD_ASSERT (dynobj != NULL
3201 && (h->needs_plt
3202 || h->is_weakalias
3203 || (h->def_dynamic
3204 && h->ref_regular
3205 && !h->def_regular)));
3206
3207 /* If this is a function, put it in the procedure linkage table. We
3208 will fill in the contents of the procedure linkage table later,
3209 when we know the address of the .got section. */
3210 if (h->type == STT_FUNC
3211 || h->needs_plt)
3212 {
3213 if (! bfd_link_pic (info)
3214 && !h->def_dynamic
3215 && !h->ref_dynamic)
3216 {
3217 /* This case can occur if we saw a PLT reloc in an input
3218 file, but the symbol was never referred to by a dynamic
3219 object. In such a case, we don't actually need to build
3220 a procedure linkage table, and we can just do a REL64
3221 reloc instead. */
3222 BFD_ASSERT (h->needs_plt);
3223 return TRUE;
3224 }
3225
3226 /* Make sure this symbol is output as a dynamic symbol. */
3227 if (h->dynindx == -1)
3228 {
3229 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3230 return FALSE;
3231 }
3232
3233 s = elf_hash_table (info)->splt;
3234 BFD_ASSERT (s != NULL);
3235
3236 /* If this is the first .plt entry, make room for the special
3237 first entry. */
3238 if (s->size == 0)
3239 s->size += PLT_ENTRY_SIZE;
3240
3241 /* If this symbol is not defined in a regular file, and we are
3242 not generating a shared library, then set the symbol to this
3243 location in the .plt. This is required to make function
3244 pointers compare as equal between the normal executable and
3245 the shared library. */
3246 if (! bfd_link_pic (info)
3247 && !h->def_regular)
3248 {
3249 h->root.u.def.section = s;
3250 h->root.u.def.value = s->size;
3251 }
3252
3253 h->plt.offset = s->size;
3254
3255 /* Make room for this entry. */
3256 s->size += elf_sh64_sizeof_plt (info);
3257
3258 /* We also need to make an entry in the .got.plt section, which
3259 will be placed in the .got section by the linker script. */
3260
3261 s = elf_hash_table (info)->sgotplt;
3262 BFD_ASSERT (s != NULL);
3263 s->size += 8;
3264
3265 /* We also need to make an entry in the .rela.plt section. */
3266
3267 s = elf_hash_table (info)->srelplt;
3268 BFD_ASSERT (s != NULL);
3269 s->size += sizeof (Elf64_External_Rela);
3270
3271 return TRUE;
3272 }
3273
3274 /* If this is a weak symbol, and there is a real definition, the
3275 processor independent code will have arranged for us to see the
3276 real definition first, and we can just use the same value. */
3277 if (h->is_weakalias)
3278 {
3279 struct elf_link_hash_entry *def = weakdef (h);
3280 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
3281 h->root.u.def.section = def->root.u.def.section;
3282 h->root.u.def.value = def->root.u.def.value;
3283 return TRUE;
3284 }
3285
3286 /* This is a reference to a symbol defined by a dynamic object which
3287 is not a function. */
3288
3289 /* If we are creating a shared library, we must presume that the
3290 only references to the symbol are via the global offset table.
3291 For such cases we need not do anything here; the relocations will
3292 be handled correctly by relocate_section. */
3293 if (bfd_link_pic (info))
3294 return TRUE;
3295
3296 /* If there are no references to this symbol that do not use the
3297 GOT, we don't need to generate a copy reloc. */
3298 if (!h->non_got_ref)
3299 return TRUE;
3300
3301 /* We must allocate the symbol in our .dynbss section, which will
3302 become part of the .bss section of the executable. There will be
3303 an entry for this symbol in the .dynsym section. The dynamic
3304 object will contain position independent code, so all references
3305 from the dynamic object to this symbol will go through the global
3306 offset table. The dynamic linker will use the .dynsym entry to
3307 determine the address it must put in the global offset table, so
3308 both the dynamic object and the regular object will refer to the
3309 same memory location for the variable. */
3310
3311 s = bfd_get_linker_section (dynobj, ".dynbss");
3312 BFD_ASSERT (s != NULL);
3313
3314 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3315 copy the initial value out of the dynamic object and into the
3316 runtime process image. We need to remember the offset into the
3317 .rela.bss section we are going to use. */
3318 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
3319 {
3320 asection *srel;
3321
3322 srel = bfd_get_linker_section (dynobj, ".rela.bss");
3323 BFD_ASSERT (srel != NULL);
3324 srel->size += sizeof (Elf64_External_Rela);
3325 h->needs_copy = 1;
3326 }
3327
3328 return _bfd_elf_adjust_dynamic_copy (info, h, s);
3329 }
3330
3331 /* This function is called via sh_elf_link_hash_traverse if we are
3332 creating a shared object with -Bsymbolic. It discards the space
3333 allocated to copy PC relative relocs against symbols which are
3334 defined in regular objects. We allocated space for them in the
3335 check_relocs routine, but we won't fill them in in the
3336 relocate_section routine. */
3337
3338 static bfd_boolean
3339 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3340 void *ignore ATTRIBUTE_UNUSED)
3341 {
3342 struct elf_sh64_pcrel_relocs_copied *s;
3343
3344 /* We only discard relocs for symbols defined in a regular object. */
3345 if (!h->root.def_regular)
3346 return TRUE;
3347
3348 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3349 s->section->size -= s->count * sizeof (Elf64_External_Rela);
3350
3351 return TRUE;
3352 }
3353
3354 /* Set the sizes of the dynamic sections. */
3355
3356 static bfd_boolean
3357 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3358 struct bfd_link_info *info)
3359 {
3360 bfd *dynobj;
3361 asection *s;
3362 bfd_boolean plt;
3363 bfd_boolean relocs;
3364 bfd_boolean reltext;
3365
3366 dynobj = elf_hash_table (info)->dynobj;
3367 BFD_ASSERT (dynobj != NULL);
3368
3369 if (elf_hash_table (info)->dynamic_sections_created)
3370 {
3371 /* Set the contents of the .interp section to the interpreter. */
3372 if (bfd_link_executable (info) && !info->nointerp)
3373 {
3374 s = bfd_get_linker_section (dynobj, ".interp");
3375 BFD_ASSERT (s != NULL);
3376 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3377 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3378 }
3379 }
3380 else
3381 {
3382 /* We may have created entries in the .rela.got section.
3383 However, if we are not creating the dynamic sections, we will
3384 not actually use these entries. Reset the size of .rela.got,
3385 which will cause it to get stripped from the output file
3386 below. */
3387 s = elf_hash_table (info)->srelgot;
3388 if (s != NULL)
3389 s->size = 0;
3390 }
3391
3392 /* If this is a -Bsymbolic shared link, then we need to discard all
3393 PC relative relocs against symbols defined in a regular object.
3394 We allocated space for them in the check_relocs routine, but we
3395 will not fill them in in the relocate_section routine. */
3396 if (bfd_link_pic (info) && info->symbolic)
3397 sh64_elf64_link_hash_traverse (elf_hash_table (info),
3398 sh64_elf64_discard_copies, NULL);
3399
3400 /* The check_relocs and adjust_dynamic_symbol entry points have
3401 determined the sizes of the various dynamic sections. Allocate
3402 memory for them. */
3403 plt = FALSE;
3404 relocs = FALSE;
3405 reltext = FALSE;
3406 for (s = dynobj->sections; s != NULL; s = s->next)
3407 {
3408 const char *name;
3409
3410 if ((s->flags & SEC_LINKER_CREATED) == 0)
3411 continue;
3412
3413 /* It's OK to base decisions on the section name, because none
3414 of the dynobj section names depend upon the input files. */
3415 name = bfd_get_section_name (dynobj, s);
3416
3417 if (strcmp (name, ".plt") == 0)
3418 {
3419 /* Remember whether there is a PLT. */
3420 plt = s->size != 0;
3421 }
3422 else if (CONST_STRNEQ (name, ".rela"))
3423 {
3424 if (s->size != 0)
3425 {
3426 asection *target;
3427
3428 /* Remember whether there are any reloc sections other
3429 than .rela.plt. */
3430 if (strcmp (name, ".rela.plt") != 0)
3431 {
3432 const char *outname;
3433
3434 relocs = TRUE;
3435
3436 /* If this relocation section applies to a read only
3437 section, then we probably need a DT_TEXTREL
3438 entry. The entries in the .rela.plt section
3439 really apply to the .got section, which we
3440 created ourselves and so know is not readonly. */
3441 outname = bfd_get_section_name (output_bfd,
3442 s->output_section);
3443 target = bfd_get_section_by_name (output_bfd, outname + 5);
3444 if (target != NULL
3445 && (target->flags & SEC_READONLY) != 0
3446 && (target->flags & SEC_ALLOC) != 0)
3447 reltext = TRUE;
3448 }
3449
3450 /* We use the reloc_count field as a counter if we need
3451 to copy relocs into the output file. */
3452 s->reloc_count = 0;
3453 }
3454 }
3455 else if (! CONST_STRNEQ (name, ".got")
3456 && strcmp (name, ".dynbss") != 0)
3457 {
3458 /* It's not one of our sections, so don't allocate space. */
3459 continue;
3460 }
3461
3462 if (s->size == 0)
3463 {
3464 /* If we don't need this section, strip it from the
3465 output file. This is mostly to handle .rela.bss and
3466 .rela.plt. We must create both sections in
3467 create_dynamic_sections, because they must be created
3468 before the linker maps input sections to output
3469 sections. The linker does that before
3470 adjust_dynamic_symbol is called, and it is that
3471 function which decides whether anything needs to go
3472 into these sections. */
3473 s->flags |= SEC_EXCLUDE;
3474 continue;
3475 }
3476
3477 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3478 continue;
3479
3480 /* Allocate memory for the section contents. */
3481 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3482 if (s->contents == NULL)
3483 return FALSE;
3484 }
3485
3486 if (elf_hash_table (info)->dynamic_sections_created)
3487 {
3488 /* Add some entries to the .dynamic section. We fill in the
3489 values later, in sh64_elf64_finish_dynamic_sections, but we
3490 must add the entries now so that we get the correct size for
3491 the .dynamic section. The DT_DEBUG entry is filled in by the
3492 dynamic linker and used by the debugger. */
3493 if (bfd_link_executable (info))
3494 {
3495 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3496 return FALSE;
3497 }
3498
3499 if (plt)
3500 {
3501 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3502 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3503 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3504 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3505 return FALSE;
3506 }
3507
3508 if (relocs)
3509 {
3510 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3511 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3512 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3513 sizeof (Elf64_External_Rela)))
3514 return FALSE;
3515 }
3516
3517 if (reltext)
3518 {
3519 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3520 return FALSE;
3521 }
3522 }
3523
3524 return TRUE;
3525 }
3526
3527 /* Finish up dynamic symbol handling. We set the contents of various
3528 dynamic sections here. */
3529
3530 static bfd_boolean
3531 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3532 struct bfd_link_info *info,
3533 struct elf_link_hash_entry *h,
3534 Elf_Internal_Sym *sym)
3535 {
3536 bfd *dynobj;
3537
3538 dynobj = elf_hash_table (info)->dynobj;
3539
3540 if (h->plt.offset != (bfd_vma) -1)
3541 {
3542 asection *splt;
3543 asection *sgot;
3544 asection *srel;
3545
3546 bfd_vma plt_index;
3547 bfd_vma got_offset;
3548 Elf_Internal_Rela rel;
3549 bfd_byte *loc;
3550
3551 /* This symbol has an entry in the procedure linkage table. Set
3552 it up. */
3553
3554 BFD_ASSERT (h->dynindx != -1);
3555
3556 splt = elf_hash_table (info)->splt;
3557 sgot = elf_hash_table (info)->sgotplt;
3558 srel = elf_hash_table (info)->srelplt;
3559 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3560
3561 /* Get the index in the procedure linkage table which
3562 corresponds to this symbol. This is the index of this symbol
3563 in all the symbols for which we are making plt entries. The
3564 first entry in the procedure linkage table is reserved. */
3565 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3566
3567 /* Get the offset into the .got table of the entry that
3568 corresponds to this function. Each .got entry is 8 bytes.
3569 The first three are reserved. */
3570 got_offset = (plt_index + 3) * 8;
3571
3572 if (bfd_link_pic (info))
3573 got_offset -= GOT_BIAS;
3574
3575 /* Fill in the entry in the procedure linkage table. */
3576 if (! bfd_link_pic (info))
3577 {
3578 if (elf_sh64_plt_entry == NULL)
3579 {
3580 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3581 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3582 }
3583 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3584 elf_sh64_sizeof_plt (info));
3585 movi_3shori_putval (output_bfd,
3586 (sgot->output_section->vma
3587 + sgot->output_offset
3588 + got_offset),
3589 (splt->contents + h->plt.offset
3590 + elf_sh64_plt_symbol_offset (info)));
3591
3592 /* Set bottom bit because its for a branch to SHmedia */
3593 movi_shori_putval (output_bfd,
3594 -(h->plt.offset
3595 + elf_sh64_plt_plt0_offset (info) + 8)
3596 | 1,
3597 (splt->contents + h->plt.offset
3598 + elf_sh64_plt_plt0_offset (info)));
3599 }
3600 else
3601 {
3602 if (elf_sh64_pic_plt_entry == NULL)
3603 {
3604 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3605 elf_sh64_pic_plt_entry_be :
3606 elf_sh64_pic_plt_entry_le);
3607 }
3608 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3609 elf_sh64_sizeof_plt (info));
3610 movi_shori_putval (output_bfd, got_offset,
3611 (splt->contents + h->plt.offset
3612 + elf_sh64_plt_symbol_offset (info)));
3613 }
3614
3615 if (bfd_link_pic (info))
3616 got_offset += GOT_BIAS;
3617
3618 movi_shori_putval (output_bfd,
3619 plt_index * sizeof (Elf64_External_Rela),
3620 (splt->contents + h->plt.offset
3621 + elf_sh64_plt_reloc_offset (info)));
3622
3623 /* Fill in the entry in the global offset table. */
3624 bfd_put_64 (output_bfd,
3625 (splt->output_section->vma
3626 + splt->output_offset
3627 + h->plt.offset
3628 + elf_sh64_plt_temp_offset (info)),
3629 sgot->contents + got_offset);
3630
3631 /* Fill in the entry in the .rela.plt section. */
3632 rel.r_offset = (sgot->output_section->vma
3633 + sgot->output_offset
3634 + got_offset);
3635 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3636 rel.r_addend = 0;
3637 rel.r_addend = GOT_BIAS;
3638 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3639 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3640
3641 if (!h->def_regular)
3642 {
3643 /* Mark the symbol as undefined, rather than as defined in
3644 the .plt section. Leave the value alone. */
3645 sym->st_shndx = SHN_UNDEF;
3646 }
3647 }
3648
3649 if (h->got.offset != (bfd_vma) -1)
3650 {
3651 asection *sgot;
3652 asection *srel;
3653 Elf_Internal_Rela rel;
3654 bfd_byte *loc;
3655
3656 /* This symbol has an entry in the global offset table. Set it
3657 up. */
3658
3659 sgot = elf_hash_table (info)->sgot;
3660 srel = elf_hash_table (info)->srelgot;
3661 BFD_ASSERT (sgot != NULL && srel != NULL);
3662
3663 rel.r_offset = (sgot->output_section->vma
3664 + sgot->output_offset
3665 + (h->got.offset &~ 1));
3666
3667 /* If this is a -Bsymbolic link, and the symbol is defined
3668 locally, we just want to emit a RELATIVE reloc. Likewise if
3669 the symbol was forced to be local because of a version file.
3670 The entry in the global offset table will already have been
3671 initialized in the relocate_section function. */
3672 if (bfd_link_pic (info)
3673 && (info->symbolic || h->dynindx == -1)
3674 && h->def_regular)
3675 {
3676 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3677 rel.r_addend = (h->root.u.def.value
3678 + h->root.u.def.section->output_section->vma
3679 + h->root.u.def.section->output_offset);
3680 }
3681 else
3682 {
3683 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3684 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3685 rel.r_addend = 0;
3686 }
3687
3688 loc = srel->contents;
3689 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3690 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3691 }
3692
3693 if (h->needs_copy)
3694 {
3695 asection *s;
3696 Elf_Internal_Rela rel;
3697 bfd_byte *loc;
3698
3699 /* This symbol needs a copy reloc. Set it up. */
3700
3701 BFD_ASSERT (h->dynindx != -1
3702 && (h->root.type == bfd_link_hash_defined
3703 || h->root.type == bfd_link_hash_defweak));
3704
3705 s = bfd_get_linker_section (dynobj, ".rela.bss");
3706 BFD_ASSERT (s != NULL);
3707
3708 rel.r_offset = (h->root.u.def.value
3709 + h->root.u.def.section->output_section->vma
3710 + h->root.u.def.section->output_offset);
3711 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3712 rel.r_addend = 0;
3713 loc = s->contents;
3714 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3715 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3716 }
3717
3718 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3719 if (h == elf_hash_table (info)->hdynamic
3720 || h == elf_hash_table (info)->hgot)
3721 sym->st_shndx = SHN_ABS;
3722
3723 return TRUE;
3724 }
3725
3726 /* Finish up the dynamic sections. */
3727
3728 static bfd_boolean
3729 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3730 struct bfd_link_info *info)
3731 {
3732 bfd *dynobj;
3733 asection *sgot;
3734 asection *sdyn;
3735
3736 dynobj = elf_hash_table (info)->dynobj;
3737
3738 sgot = elf_hash_table (info)->sgotplt;
3739 BFD_ASSERT (sgot != NULL);
3740 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3741
3742 if (elf_hash_table (info)->dynamic_sections_created)
3743 {
3744 asection *splt;
3745 Elf64_External_Dyn *dyncon, *dynconend;
3746
3747 BFD_ASSERT (sdyn != NULL);
3748
3749 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3750 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3751 for (; dyncon < dynconend; dyncon++)
3752 {
3753 Elf_Internal_Dyn dyn;
3754 const char *name;
3755 asection *s;
3756 struct elf_link_hash_entry *h;
3757
3758 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3759
3760 switch (dyn.d_tag)
3761 {
3762 default:
3763 break;
3764
3765 case DT_INIT:
3766 name = info->init_function;
3767 goto get_sym;
3768
3769 case DT_FINI:
3770 name = info->fini_function;
3771 get_sym:
3772 if (dyn.d_un.d_val != 0)
3773 {
3774 h = elf_link_hash_lookup (elf_hash_table (info), name,
3775 FALSE, FALSE, TRUE);
3776 if (h != NULL && (h->other & STO_SH5_ISA32))
3777 {
3778 dyn.d_un.d_val |= 1;
3779 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3780 }
3781 }
3782 break;
3783
3784 case DT_PLTGOT:
3785 s = elf_hash_table (info)->sgotplt;
3786 goto get_vma;
3787
3788 case DT_JMPREL:
3789 s = elf_hash_table (info)->srelplt;
3790 get_vma:
3791 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3792 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3793 break;
3794
3795 case DT_PLTRELSZ:
3796 s = elf_hash_table (info)->srelplt;
3797 dyn.d_un.d_val = s->size;
3798 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3799 break;
3800 }
3801 }
3802
3803 /* Fill in the first entry in the procedure linkage table. */
3804 splt = elf_hash_table (info)->splt;
3805 if (splt && splt->size > 0)
3806 {
3807 if (bfd_link_pic (info))
3808 {
3809 if (elf_sh64_pic_plt_entry == NULL)
3810 {
3811 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3812 elf_sh64_pic_plt_entry_be :
3813 elf_sh64_pic_plt_entry_le);
3814 }
3815 memcpy (splt->contents, elf_sh64_pic_plt_entry,
3816 elf_sh64_sizeof_plt (info));
3817 }
3818 else
3819 {
3820 if (elf_sh64_plt0_entry == NULL)
3821 {
3822 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
3823 elf_sh64_plt0_entry_be :
3824 elf_sh64_plt0_entry_le);
3825 }
3826 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
3827 movi_3shori_putval (output_bfd,
3828 sgot->output_section->vma
3829 + sgot->output_offset,
3830 splt->contents
3831 + elf_sh64_plt0_gotplt_offset (info));
3832 }
3833
3834 /* UnixWare sets the entsize of .plt to 8, although that doesn't
3835 really seem like the right value. */
3836 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
3837 }
3838 }
3839
3840 /* Fill in the first three entries in the global offset table. */
3841 if (sgot->size > 0)
3842 {
3843 if (sdyn == NULL)
3844 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
3845 else
3846 bfd_put_64 (output_bfd,
3847 sdyn->output_section->vma + sdyn->output_offset,
3848 sgot->contents);
3849 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3850 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
3851 }
3852
3853 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
3854
3855 return TRUE;
3856 }
3857
3858 /* Merge non visibility st_other attribute when the symbol comes from
3859 a dynamic object. */
3860 static void
3861 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
3862 const Elf_Internal_Sym *isym,
3863 bfd_boolean definition,
3864 bfd_boolean dynamic ATTRIBUTE_UNUSED)
3865 {
3866 if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0)
3867 {
3868 unsigned char other;
3869
3870 /* Take the balance of OTHER from the definition. */
3871 other = (definition ? isym->st_other : h->other);
3872 other &= ~ ELF_ST_VISIBILITY (-1);
3873 h->other = other | ELF_ST_VISIBILITY (h->other);
3874 }
3875
3876 return;
3877 }
3878
3879 static const struct bfd_elf_special_section sh64_elf64_special_sections[]=
3880 {
3881 { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 },
3882 { NULL, 0, 0, 0, 0 }
3883 };
3884
3885 #define TARGET_BIG_SYM sh64_elf64_vec
3886 #define TARGET_BIG_NAME "elf64-sh64"
3887 #define TARGET_LITTLE_SYM sh64_elf64_le_vec
3888 #define TARGET_LITTLE_NAME "elf64-sh64l"
3889 #define ELF_ARCH bfd_arch_sh
3890 #define ELF_MACHINE_CODE EM_SH
3891 #define ELF_MAXPAGESIZE 128
3892
3893 #define elf_symbol_leading_char '_'
3894
3895 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
3896 #define bfd_elf64_bfd_reloc_name_lookup \
3897 sh_elf64_reloc_name_lookup
3898 #define elf_info_to_howto sh_elf64_info_to_howto
3899
3900 /* Note: there's no relaxation at present. */
3901
3902 #define elf_backend_relocate_section sh_elf64_relocate_section
3903 #define bfd_elf64_bfd_get_relocated_section_contents \
3904 sh_elf64_get_relocated_section_contents
3905 #define elf_backend_object_p sh_elf64_set_mach_from_flags
3906 #define bfd_elf64_bfd_set_private_flags \
3907 sh_elf64_set_private_flags
3908 #define bfd_elf64_bfd_copy_private_bfd_data \
3909 sh_elf64_copy_private_data
3910 #define bfd_elf64_bfd_merge_private_bfd_data \
3911 sh_elf64_merge_private_data
3912 #define elf_backend_fake_sections sh64_elf64_fake_sections
3913
3914 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
3915 #define elf_backend_check_relocs sh_elf64_check_relocs
3916
3917 #define elf_backend_can_gc_sections 1
3918
3919 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
3920
3921 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
3922
3923 #define elf_backend_link_output_symbol_hook \
3924 sh64_elf64_link_output_symbol_hook
3925
3926 #define elf_backend_merge_symbol_attribute \
3927 sh64_elf64_merge_symbol_attribute
3928
3929 #define elf_backend_final_write_processing \
3930 sh64_elf64_final_write_processing
3931
3932 #define elf_backend_create_dynamic_sections \
3933 sh64_elf64_create_dynamic_sections
3934 #define bfd_elf64_bfd_link_hash_table_create \
3935 sh64_elf64_link_hash_table_create
3936 #define elf_backend_adjust_dynamic_symbol \
3937 sh64_elf64_adjust_dynamic_symbol
3938 #define elf_backend_size_dynamic_sections \
3939 sh64_elf64_size_dynamic_sections
3940 #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
3941 #define elf_backend_finish_dynamic_symbol \
3942 sh64_elf64_finish_dynamic_symbol
3943 #define elf_backend_finish_dynamic_sections \
3944 sh64_elf64_finish_dynamic_sections
3945 #define elf_backend_special_sections sh64_elf64_special_sections
3946
3947 #define elf_backend_want_got_plt 1
3948 #define elf_backend_plt_readonly 1
3949 #define elf_backend_want_plt_sym 0
3950 #define elf_backend_got_header_size 24
3951 #define elf_backend_dtrel_excludes_plt 1
3952
3953 #define elf_backend_linux_prpsinfo64_ugid16 TRUE
3954
3955 #include "elf64-target.h"
3956
3957 /* NetBSD support. */
3958 #undef TARGET_BIG_SYM
3959 #define TARGET_BIG_SYM sh64_elf64_nbsd_vec
3960 #undef TARGET_BIG_NAME
3961 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
3962 #undef TARGET_LITTLE_SYM
3963 #define TARGET_LITTLE_SYM sh64_elf64_nbsd_le_vec
3964 #undef TARGET_LITTLE_NAME
3965 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
3966 #undef ELF_MAXPAGESIZE
3967 #define ELF_MAXPAGESIZE 0x10000
3968 #undef elf_symbol_leading_char
3969 #define elf_symbol_leading_char 0
3970
3971 #define elf64_bed elf64_sh64_nbsd_bed
3972
3973 #include "elf64-target.h"
3974
3975 /* Linux support. */
3976 #undef TARGET_BIG_SYM
3977 #define TARGET_BIG_SYM sh64_elf64_linux_be_vec
3978 #undef TARGET_BIG_NAME
3979 #define TARGET_BIG_NAME "elf64-sh64big-linux"
3980 #undef TARGET_LITTLE_SYM
3981 #define TARGET_LITTLE_SYM sh64_elf64_linux_vec
3982 #undef TARGET_LITTLE_NAME
3983 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
3984 #undef elf64_bed
3985 #define elf64_bed elf64_sh64_linux_bed
3986
3987 #include "elf64-target.h"
GDB Binutils - Deliverables
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