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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 void
1404 sh_elf64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
1405 Elf_Internal_Rela *dst)
1406 {
1407 unsigned int r;
1408
1409 r = ELF64_R_TYPE (dst->r_info);
1410
1411 BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL);
1412 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
1413 BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2);
1414 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32);
1415 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
1416
1417 cache_ptr->howto = &sh_elf64_howto_table[r];
1418 }
1419
1420 /* Relocate an SH ELF section.
1421
1422 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1423
1424 static bfd_boolean
1425 sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
1426 struct bfd_link_info *info, bfd *input_bfd,
1427 asection *input_section, bfd_byte *contents,
1428 Elf_Internal_Rela *relocs,
1429 Elf_Internal_Sym *local_syms,
1430 asection **local_sections)
1431 {
1432 Elf_Internal_Shdr *symtab_hdr;
1433 struct elf_link_hash_entry **sym_hashes;
1434 Elf_Internal_Rela *rel, *relend;
1435 bfd_vma *local_got_offsets;
1436 asection *sgot;
1437 asection *sgotplt;
1438 asection *splt;
1439 asection *sreloc;
1440 bfd_vma disp, dropped;
1441
1442 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1443 sym_hashes = elf_sym_hashes (input_bfd);
1444 local_got_offsets = elf_local_got_offsets (input_bfd);
1445
1446 sreloc = NULL;
1447
1448 rel = relocs;
1449 relend = relocs + input_section->reloc_count;
1450 for (; rel < relend; rel++)
1451 {
1452 int r_type;
1453 reloc_howto_type *howto;
1454 unsigned long r_symndx;
1455 Elf_Internal_Sym *sym;
1456 asection *sec;
1457 struct elf_link_hash_entry *h;
1458 bfd_vma relocation;
1459 bfd_vma addend = (bfd_vma)0;
1460 bfd_reloc_status_type r;
1461 int seen_stt_datalabel = 0;
1462
1463 r_symndx = ELF64_R_SYM (rel->r_info);
1464
1465 r_type = ELF64_R_TYPE (rel->r_info);
1466
1467 if (r_type == (int) R_SH_NONE)
1468 continue;
1469
1470 if (r_type < 0
1471 || r_type > R_SH_64_PCREL
1472 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
1473 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1474 || (r_type >= (int) R_SH_DIR8WPN
1475 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1476 || (r_type >= (int) R_SH_GNU_VTINHERIT
1477 && r_type <= (int) R_SH_PSHL)
1478 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
1479 && r_type <= R_SH_GOTPLT32)
1480 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
1481 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4))
1482 {
1483 bfd_set_error (bfd_error_bad_value);
1484 return FALSE;
1485 }
1486
1487 howto = sh_elf64_howto_table + r_type;
1488
1489 h = NULL;
1490 sym = NULL;
1491 sec = NULL;
1492 relocation = 0;
1493 if (r_symndx < symtab_hdr->sh_info)
1494 {
1495 sym = local_syms + r_symndx;
1496 sec = local_sections[r_symndx];
1497 relocation = ((sec->output_section->vma
1498 + sec->output_offset
1499 + sym->st_value)
1500 | ((sym->st_other & STO_SH5_ISA32) != 0));
1501
1502 /* A local symbol never has STO_SH5_ISA32, so we don't need
1503 datalabel processing here. Make sure this does not change
1504 without notice. */
1505 if ((sym->st_other & STO_SH5_ISA32) != 0)
1506 (*info->callbacks->reloc_dangerous)
1507 (info,
1508 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
1509 input_bfd, input_section, rel->r_offset);
1510
1511 if (sec != NULL && discarded_section (sec))
1512 /* Handled below. */
1513 ;
1514 else if (bfd_link_relocatable (info))
1515 {
1516 /* This is a relocatable link. We don't have to change
1517 anything, unless the reloc is against a section symbol,
1518 in which case we have to adjust according to where the
1519 section symbol winds up in the output section. */
1520 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1521 goto final_link_relocate;
1522
1523 continue;
1524 }
1525 else if (! howto->partial_inplace)
1526 {
1527 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1528 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0);
1529 }
1530 else if ((sec->flags & SEC_MERGE)
1531 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1532 {
1533 asection *msec;
1534
1535 if (howto->rightshift || howto->src_mask != 0xffffffff)
1536 {
1537 _bfd_error_handler
1538 /* xgettext:c-format */
1539 (_("%pB(%pA+%#" PRIx64 "): "
1540 "%s relocation against SEC_MERGE section"),
1541 input_bfd, input_section,
1542 (uint64_t) rel->r_offset, howto->name);
1543 return FALSE;
1544 }
1545
1546 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1547 msec = sec;
1548 addend =
1549 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1550 - relocation;
1551 addend += msec->output_section->vma + msec->output_offset;
1552 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1553 addend = 0;
1554 }
1555 }
1556 else
1557 {
1558 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1559
1560 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1561 while (h->root.type == bfd_link_hash_indirect
1562 || h->root.type == bfd_link_hash_warning)
1563 {
1564 /* If the reference passes a symbol marked with
1565 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1566 doesn't count. */
1567 seen_stt_datalabel |= h->type == STT_DATALABEL;
1568 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1569 }
1570
1571 if (h->root.type == bfd_link_hash_defined
1572 || h->root.type == bfd_link_hash_defweak)
1573 {
1574 sec = h->root.u.def.section;
1575 /* In these cases, we don't need the relocation value.
1576 We check specially because in some obscure cases
1577 sec->output_section will be NULL. */
1578 if (r_type == R_SH_GOTPC_LOW16
1579 || r_type == R_SH_GOTPC_MEDLOW16
1580 || r_type == R_SH_GOTPC_MEDHI16
1581 || r_type == R_SH_GOTPC_HI16
1582 || ((r_type == R_SH_PLT_LOW16
1583 || r_type == R_SH_PLT_MEDLOW16
1584 || r_type == R_SH_PLT_MEDHI16
1585 || r_type == R_SH_PLT_HI16)
1586 && h->plt.offset != (bfd_vma) -1)
1587 || ((r_type == R_SH_GOT_LOW16
1588 || r_type == R_SH_GOT_MEDLOW16
1589 || r_type == R_SH_GOT_MEDHI16
1590 || r_type == R_SH_GOT_HI16)
1591 && elf_hash_table (info)->dynamic_sections_created
1592 && (! bfd_link_pic (info)
1593 || (! info->symbolic && h->dynindx != -1)
1594 || !h->def_regular))
1595 /* The cases above are those in which relocation is
1596 overwritten in the switch block below. The cases
1597 below are those in which we must defer relocation
1598 to run-time, because we can't resolve absolute
1599 addresses when creating a shared library. */
1600 || (bfd_link_pic (info)
1601 && ((! info->symbolic && h->dynindx != -1)
1602 || !h->def_regular)
1603 && ((r_type == R_SH_64
1604 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1605 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1606 || r_type == R_SH_64_PCREL)
1607 && ((input_section->flags & SEC_ALLOC) != 0
1608 /* DWARF will emit R_SH_DIR32 relocations in its
1609 sections against symbols defined externally
1610 in shared libraries. We can't do anything
1611 with them here. */
1612 || (input_section->flags & SEC_DEBUGGING) != 0))
1613 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1614 sections because such sections are not SEC_ALLOC and
1615 thus ld.so will not process them. */
1616 || (sec->output_section == NULL
1617 && ((input_section->flags & SEC_DEBUGGING) != 0
1618 && h->def_dynamic)))
1619 ;
1620 else if (sec->output_section != NULL)
1621 relocation = ((h->root.u.def.value
1622 + sec->output_section->vma
1623 + sec->output_offset)
1624 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1625 symbol value, unless we've seen
1626 STT_DATALABEL on the way to it. */
1627 | ((h->other & STO_SH5_ISA32) != 0
1628 && ! seen_stt_datalabel));
1629 else if (!bfd_link_relocatable (info)
1630 && (_bfd_elf_section_offset (output_bfd, info,
1631 input_section,
1632 rel->r_offset)
1633 != (bfd_vma) -1))
1634 {
1635 _bfd_error_handler
1636 /* xgettext:c-format */
1637 (_("%pB(%pA+%#" PRIx64 "): "
1638 "unresolvable %s relocation against symbol `%s'"),
1639 input_bfd,
1640 input_section,
1641 (uint64_t) rel->r_offset,
1642 howto->name,
1643 h->root.root.string);
1644 }
1645 }
1646 else if (h->root.type == bfd_link_hash_undefweak)
1647 ;
1648 else if (info->unresolved_syms_in_objects == RM_IGNORE
1649 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1650 ;
1651 else if (!bfd_link_relocatable (info))
1652 (*info->callbacks->undefined_symbol)
1653 (info, h->root.root.string, input_bfd,
1654 input_section, rel->r_offset,
1655 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1656 || ELF_ST_VISIBILITY (h->other)));
1657 }
1658
1659 if (sec != NULL && discarded_section (sec))
1660 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1661 rel, 1, relend, howto, 0, contents);
1662
1663 if (bfd_link_relocatable (info))
1664 continue;
1665
1666 disp = (relocation
1667 - input_section->output_section->vma
1668 - input_section->output_offset
1669 - rel->r_offset);
1670 dropped = 0;
1671 switch ((int)r_type)
1672 {
1673 case R_SH_PT_16: dropped = disp & 2; break;
1674 case R_SH_DIR10SW: dropped = disp & 1; break;
1675 case R_SH_DIR10SL: dropped = disp & 3; break;
1676 case R_SH_DIR10SQ: dropped = disp & 7; break;
1677 }
1678 if (dropped != 0)
1679 {
1680 _bfd_error_handler
1681 /* xgettext:c-format */
1682 (_("%pB: error: unaligned relocation type %d at "
1683 "%08" PRIx64 " reloc %08" PRIx64 ""),
1684 input_bfd, (int) r_type,
1685 (uint64_t) rel->r_offset, (uint64_t) relocation);
1686 bfd_set_error (bfd_error_bad_value);
1687 return FALSE;
1688 }
1689 switch ((int)r_type)
1690 {
1691 case R_SH_64:
1692 case R_SH_64_PCREL:
1693 if (bfd_link_pic (info)
1694 && (input_section->flags & SEC_ALLOC) != 0
1695 && (r_type != R_SH_64_PCREL
1696 || (h != NULL
1697 && h->dynindx != -1
1698 && (! info->symbolic
1699 || !h->def_regular))))
1700 {
1701 Elf_Internal_Rela outrel;
1702 bfd_byte *loc;
1703 bfd_boolean skip, relocate;
1704
1705 /* When generating a shared object, these relocations
1706 are copied into the output file to be resolved at run
1707 time. */
1708
1709 if (sreloc == NULL)
1710 {
1711 sreloc = _bfd_elf_get_dynamic_reloc_section
1712 (input_bfd, input_section, /*rela?*/ TRUE);
1713 if (sreloc == NULL)
1714 return FALSE;
1715 }
1716
1717 skip = FALSE;
1718 relocate = FALSE;
1719
1720 outrel.r_offset
1721 = _bfd_elf_section_offset (output_bfd, info,
1722 input_section, rel->r_offset);
1723
1724 if (outrel.r_offset == (bfd_vma) -1)
1725 skip = TRUE;
1726 else if (outrel.r_offset == (bfd_vma) -2)
1727 skip = TRUE, relocate = TRUE;
1728
1729 outrel.r_offset += (input_section->output_section->vma
1730 + input_section->output_offset);
1731
1732 if (skip)
1733 memset (&outrel, 0, sizeof outrel);
1734 else if (r_type == R_SH_64_PCREL)
1735 {
1736 BFD_ASSERT (h != NULL && h->dynindx != -1);
1737 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1738 outrel.r_addend = rel->r_addend;
1739 }
1740 else
1741 {
1742 /* h->dynindx may be -1 if this symbol was marked to
1743 become local. */
1744 if (h == NULL
1745 || ((info->symbolic || h->dynindx == -1)
1746 && h->def_regular))
1747 {
1748 relocate = TRUE;
1749 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1750 outrel.r_addend = relocation + rel->r_addend;
1751 }
1752 else
1753 {
1754 BFD_ASSERT (h->dynindx != -1);
1755 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1756 outrel.r_addend = relocation + rel->r_addend;
1757 }
1758 }
1759
1760 loc = sreloc->contents;
1761 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1762 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1763
1764 /* If this reloc is against an external symbol, we do
1765 not want to fiddle with the addend. Otherwise, we
1766 need to include the symbol value so that it becomes
1767 an addend for the dynamic reloc. */
1768 if (! relocate)
1769 continue;
1770 }
1771 else if (r_type == R_SH_64)
1772 addend = rel->r_addend;
1773 goto final_link_relocate;
1774
1775 case R_SH_GOTPLT_LOW16:
1776 case R_SH_GOTPLT_MEDLOW16:
1777 case R_SH_GOTPLT_MEDHI16:
1778 case R_SH_GOTPLT_HI16:
1779 case R_SH_GOTPLT10BY4:
1780 case R_SH_GOTPLT10BY8:
1781 /* Relocation is to the entry for this symbol in the
1782 procedure linkage table. */
1783
1784 if (h == NULL
1785 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1786 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1787 || ! bfd_link_pic (info)
1788 || info->symbolic
1789 || h->dynindx == -1
1790 || h->plt.offset == (bfd_vma) -1
1791 || h->got.offset != (bfd_vma) -1)
1792 goto force_got;
1793
1794 /* Relocation is to the entry for this symbol in the global
1795 offset table extension for the procedure linkage table. */
1796 sgotplt = elf_hash_table (info)->sgotplt;
1797 BFD_ASSERT (sgotplt != NULL);
1798
1799 relocation = (sgotplt->output_offset
1800 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1801 - 1 + 3) * 8));
1802
1803 relocation -= GOT_BIAS;
1804
1805 goto final_link_relocate;
1806
1807 force_got:
1808 case R_SH_GOT_LOW16:
1809 case R_SH_GOT_MEDLOW16:
1810 case R_SH_GOT_MEDHI16:
1811 case R_SH_GOT_HI16:
1812 case R_SH_GOT10BY4:
1813 case R_SH_GOT10BY8:
1814 /* Relocation is to the entry for this symbol in the global
1815 offset table. */
1816 sgot = elf_hash_table (info)->sgot;
1817 BFD_ASSERT (sgot != NULL);
1818
1819 if (h != NULL)
1820 {
1821 bfd_vma off;
1822
1823 off = h->got.offset;
1824 if (seen_stt_datalabel)
1825 {
1826 struct elf_sh64_link_hash_entry *hsh;
1827
1828 hsh = (struct elf_sh64_link_hash_entry *)h;
1829 off = hsh->datalabel_got_offset;
1830 }
1831 BFD_ASSERT (off != (bfd_vma) -1);
1832
1833 if (! elf_hash_table (info)->dynamic_sections_created
1834 || (bfd_link_pic (info)
1835 && (info->symbolic || h->dynindx == -1
1836 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1837 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1838 && h->def_regular))
1839 {
1840 /* This is actually a static link, or it is a
1841 -Bsymbolic link and the symbol is defined
1842 locally, or the symbol was forced to be local
1843 because of a version file. We must initialize
1844 this entry in the global offset table. Since the
1845 offset must always be a multiple of 4, we use the
1846 least significant bit to record whether we have
1847 initialized it already.
1848
1849 When doing a dynamic link, we create a .rela.got
1850 relocation entry to initialize the value. This
1851 is done in the finish_dynamic_symbol routine. */
1852 if ((off & 1) != 0)
1853 off &= ~1;
1854 else
1855 {
1856 bfd_put_64 (output_bfd, relocation,
1857 sgot->contents + off);
1858 if (seen_stt_datalabel)
1859 {
1860 struct elf_sh64_link_hash_entry *hsh;
1861
1862 hsh = (struct elf_sh64_link_hash_entry *)h;
1863 hsh->datalabel_got_offset |= 1;
1864 }
1865 else
1866 h->got.offset |= 1;
1867 }
1868 }
1869
1870 relocation = sgot->output_offset + off;
1871 }
1872 else
1873 {
1874 bfd_vma off;
1875
1876 if (rel->r_addend)
1877 {
1878 BFD_ASSERT (local_got_offsets != NULL
1879 && (local_got_offsets[symtab_hdr->sh_info
1880 + r_symndx]
1881 != (bfd_vma) -1));
1882
1883 off = local_got_offsets[symtab_hdr->sh_info
1884 + r_symndx];
1885 }
1886 else
1887 {
1888 BFD_ASSERT (local_got_offsets != NULL
1889 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1890
1891 off = local_got_offsets[r_symndx];
1892 }
1893
1894 /* The offset must always be a multiple of 8. We use
1895 the least significant bit to record whether we have
1896 already generated the necessary reloc. */
1897 if ((off & 1) != 0)
1898 off &= ~1;
1899 else
1900 {
1901 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1902
1903 if (bfd_link_pic (info))
1904 {
1905 asection *s;
1906 Elf_Internal_Rela outrel;
1907 bfd_byte *loc;
1908
1909 s = elf_hash_table (info)->srelgot;
1910 BFD_ASSERT (s != NULL);
1911
1912 outrel.r_offset = (sgot->output_section->vma
1913 + sgot->output_offset
1914 + off);
1915 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1916 outrel.r_addend = relocation;
1917 loc = s->contents;
1918 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1919 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1920 }
1921
1922 if (rel->r_addend)
1923 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1924 else
1925 local_got_offsets[r_symndx] |= 1;
1926 }
1927
1928 relocation = sgot->output_offset + off;
1929 }
1930
1931 relocation -= GOT_BIAS;
1932
1933 goto final_link_relocate;
1934
1935 case R_SH_GOTOFF_LOW16:
1936 case R_SH_GOTOFF_MEDLOW16:
1937 case R_SH_GOTOFF_MEDHI16:
1938 case R_SH_GOTOFF_HI16:
1939 /* Relocation is relative to the start of the global offset
1940 table. */
1941
1942 sgot = elf_hash_table (info)->sgot;
1943 BFD_ASSERT (sgot != NULL);
1944
1945 /* Note that sgot->output_offset is not involved in this
1946 calculation. We always want the start of .got. If we
1947 defined _GLOBAL_OFFSET_TABLE in a different way, as is
1948 permitted by the ABI, we might have to change this
1949 calculation. */
1950 relocation -= sgot->output_section->vma;
1951
1952 relocation -= GOT_BIAS;
1953
1954 addend = rel->r_addend;
1955
1956 goto final_link_relocate;
1957
1958 case R_SH_GOTPC_LOW16:
1959 case R_SH_GOTPC_MEDLOW16:
1960 case R_SH_GOTPC_MEDHI16:
1961 case R_SH_GOTPC_HI16:
1962 /* Use global offset table as symbol value. */
1963
1964 sgot = elf_hash_table (info)->sgot;
1965 BFD_ASSERT (sgot != NULL);
1966
1967 relocation = sgot->output_section->vma;
1968
1969 relocation += GOT_BIAS;
1970
1971 addend = rel->r_addend;
1972
1973 goto final_link_relocate;
1974
1975 case R_SH_PLT_LOW16:
1976 case R_SH_PLT_MEDLOW16:
1977 case R_SH_PLT_MEDHI16:
1978 case R_SH_PLT_HI16:
1979 /* Relocation is to the entry for this symbol in the
1980 procedure linkage table. */
1981
1982 /* Resolve a PLT reloc against a local symbol directly,
1983 without using the procedure linkage table. */
1984 if (h == NULL)
1985 goto final_link_relocate;
1986
1987 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1988 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1989 goto final_link_relocate;
1990
1991 if (h->plt.offset == (bfd_vma) -1)
1992 {
1993 /* We didn't make a PLT entry for this symbol. This
1994 happens when statically linking PIC code, or when
1995 using -Bsymbolic. */
1996 goto final_link_relocate;
1997 }
1998
1999 splt = elf_hash_table (info)->splt;
2000 BFD_ASSERT (splt != NULL);
2001
2002 relocation = (splt->output_section->vma
2003 + splt->output_offset
2004 + h->plt.offset);
2005 relocation++;
2006
2007 addend = rel->r_addend;
2008
2009 goto final_link_relocate;
2010
2011 case R_SH_DIR32:
2012 case R_SH_SHMEDIA_CODE:
2013 case R_SH_PT_16:
2014 case R_SH_DIR5U:
2015 case R_SH_DIR6S:
2016 case R_SH_DIR6U:
2017 case R_SH_DIR10S:
2018 case R_SH_DIR10SW:
2019 case R_SH_DIR10SL:
2020 case R_SH_DIR10SQ:
2021 case R_SH_IMMS16:
2022 case R_SH_IMMU16:
2023 case R_SH_IMM_LOW16:
2024 case R_SH_IMM_LOW16_PCREL:
2025 case R_SH_IMM_MEDLOW16:
2026 case R_SH_IMM_MEDLOW16_PCREL:
2027 case R_SH_IMM_MEDHI16:
2028 case R_SH_IMM_MEDHI16_PCREL:
2029 case R_SH_IMM_HI16:
2030 case R_SH_IMM_HI16_PCREL:
2031 addend = rel->r_addend;
2032 /* Fall through. */
2033 case R_SH_REL32:
2034 final_link_relocate:
2035 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2036 contents, rel->r_offset,
2037 relocation, addend);
2038 break;
2039
2040 default:
2041 bfd_set_error (bfd_error_bad_value);
2042 return FALSE;
2043
2044 }
2045
2046 if (r != bfd_reloc_ok)
2047 {
2048 switch (r)
2049 {
2050 default:
2051 case bfd_reloc_outofrange:
2052 abort ();
2053 case bfd_reloc_overflow:
2054 {
2055 const char *name;
2056
2057 if (h != NULL)
2058 name = NULL;
2059 else
2060 {
2061 name = (bfd_elf_string_from_elf_section
2062 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2063 if (name == NULL)
2064 return FALSE;
2065 if (*name == '\0')
2066 name = bfd_section_name (input_bfd, sec);
2067 }
2068 (*info->callbacks->reloc_overflow)
2069 (info, (h ? &h->root : NULL), name, howto->name,
2070 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2071 }
2072 break;
2073 }
2074 }
2075 }
2076
2077 return TRUE;
2078 }
2079
2080 /* This is a version of bfd_generic_get_relocated_section_contents
2081 that uses sh_elf64_relocate_section.
2082
2083 See sh_elf_relocate_section in elf32-sh.c for the original. */
2084
2085 static bfd_byte *
2086 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2087 struct bfd_link_info *link_info,
2088 struct bfd_link_order *link_order,
2089 bfd_byte *data,
2090 bfd_boolean relocatable,
2091 asymbol **symbols)
2092 {
2093 Elf_Internal_Shdr *symtab_hdr;
2094 asection *input_section = link_order->u.indirect.section;
2095 bfd *input_bfd = input_section->owner;
2096 asection **sections = NULL;
2097 Elf_Internal_Rela *internal_relocs = NULL;
2098 Elf_Internal_Sym *isymbuf = NULL;
2099
2100 /* We only need to handle the case of relaxing, or of having a
2101 particular set of section contents, specially. */
2102 if (relocatable
2103 || elf_section_data (input_section)->this_hdr.contents == NULL)
2104 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2105 link_order, data,
2106 relocatable,
2107 symbols);
2108
2109 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2110
2111 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2112 input_section->size);
2113
2114 if ((input_section->flags & SEC_RELOC) != 0
2115 && input_section->reloc_count > 0)
2116 {
2117 Elf_Internal_Sym *isymp;
2118 Elf_Internal_Sym *isymend;
2119 asection **secpp;
2120
2121 /* Read this BFD's local symbols. */
2122 if (symtab_hdr->sh_info != 0)
2123 {
2124 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2125 if (isymbuf == NULL)
2126 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2127 symtab_hdr->sh_info, 0,
2128 NULL, NULL, NULL);
2129 if (isymbuf == NULL)
2130 goto error_return;
2131 }
2132
2133 internal_relocs = (_bfd_elf_link_read_relocs
2134 (input_bfd, input_section, NULL,
2135 (Elf_Internal_Rela *) NULL, FALSE));
2136 if (internal_relocs == NULL)
2137 goto error_return;
2138
2139 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2140 * sizeof (asection *));
2141 if (sections == NULL && symtab_hdr->sh_info > 0)
2142 goto error_return;
2143
2144 secpp = sections;
2145 isymend = isymbuf + symtab_hdr->sh_info;
2146 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2147 {
2148 asection *isec;
2149
2150 if (isymp->st_shndx == SHN_UNDEF)
2151 isec = bfd_und_section_ptr;
2152 else if (isymp->st_shndx == SHN_ABS)
2153 isec = bfd_abs_section_ptr;
2154 else if (isymp->st_shndx == SHN_COMMON)
2155 isec = bfd_com_section_ptr;
2156 else
2157 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2158
2159 *secpp = isec;
2160 }
2161
2162 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2163 input_section, data, internal_relocs,
2164 isymbuf, sections))
2165 goto error_return;
2166
2167 if (sections != NULL)
2168 free (sections);
2169 if (internal_relocs != elf_section_data (input_section)->relocs)
2170 free (internal_relocs);
2171 if (isymbuf != NULL
2172 && (unsigned char *) isymbuf != symtab_hdr->contents)
2173 free (isymbuf);
2174 }
2175
2176 return data;
2177
2178 error_return:
2179 if (sections != NULL)
2180 free (sections);
2181 if (internal_relocs != NULL
2182 && internal_relocs != elf_section_data (input_section)->relocs)
2183 free (internal_relocs);
2184 if (isymbuf != NULL
2185 && (unsigned char *) isymbuf != symtab_hdr->contents)
2186 free (isymbuf);
2187 return NULL;
2188 }
2189
2190 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2191
2192 static bfd_boolean
2193 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2194 Elf_Internal_Shdr *elf_section_hdr,
2195 asection *asect)
2196 {
2197 /* Code sections can only contain SH64 code, so mark them as such. */
2198 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2199 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2200
2201 return TRUE;
2202 }
2203
2204 static bfd_boolean
2205 sh_elf64_set_mach_from_flags (bfd *abfd)
2206 {
2207 flagword flags = elf_elfheader (abfd)->e_flags;
2208
2209 switch (flags & EF_SH_MACH_MASK)
2210 {
2211 case EF_SH5:
2212 /* Just one, but keep the switch construct to make additions easy. */
2213 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2214 break;
2215
2216 default:
2217 bfd_set_error (bfd_error_wrong_format);
2218 return FALSE;
2219 }
2220 return TRUE;
2221 }
2222
2223 /* Function to keep SH64 specific file flags.
2224
2225 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2226
2227 static bfd_boolean
2228 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2229 {
2230 BFD_ASSERT (! elf_flags_init (abfd)
2231 || elf_elfheader (abfd)->e_flags == flags);
2232
2233 elf_elfheader (abfd)->e_flags = flags;
2234 elf_flags_init (abfd) = TRUE;
2235 return sh_elf64_set_mach_from_flags (abfd);
2236 }
2237
2238 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2239 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2240
2241 static bfd_boolean
2242 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2243 {
2244 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2245 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2246 return TRUE;
2247
2248 /* Copy object attributes. */
2249 _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2250
2251 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2252 }
2253
2254 static bfd_boolean
2255 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2256 {
2257 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2258 }
2259
2260 static bfd_boolean
2261 sh_elf64_merge_private_data (bfd *ibfd, struct bfd_link_info *info)
2262 {
2263 bfd *obfd = info->output_bfd;
2264 flagword old_flags, new_flags;
2265
2266 if (! _bfd_generic_verify_endian_match (ibfd, info))
2267 return FALSE;
2268
2269 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2270 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2271 return TRUE;
2272
2273 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2274 {
2275 const char *msg;
2276
2277 if (bfd_get_arch_size (ibfd) == 32
2278 && bfd_get_arch_size (obfd) == 64)
2279 /* xgettext:c-format */
2280 msg = _("%pB: compiled as 32-bit object and %pB is 64-bit");
2281 else if (bfd_get_arch_size (ibfd) == 64
2282 && bfd_get_arch_size (obfd) == 32)
2283 /* xgettext:c-format */
2284 msg = _("%pB: compiled as 64-bit object and %pB is 32-bit");
2285 else
2286 /* xgettext:c-format */
2287 msg = _("%pB: object size does not match that of target %pB");
2288
2289 _bfd_error_handler (msg, ibfd, obfd);
2290 bfd_set_error (bfd_error_wrong_format);
2291 return FALSE;
2292 }
2293
2294 old_flags = elf_elfheader (obfd)->e_flags;
2295 new_flags = elf_elfheader (ibfd)->e_flags;
2296 if (! elf_flags_init (obfd))
2297 {
2298 /* This happens when ld starts out with a 'blank' output file. */
2299 elf_flags_init (obfd) = TRUE;
2300 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2301 }
2302 /* We don't allow linking in anything else than SH64 code, and since
2303 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2304 here as things change. */
2305 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2306 {
2307 _bfd_error_handler
2308 ("%pB: does not use the SH64 64-bit ABI as previous modules do", ibfd);
2309 bfd_set_error (bfd_error_bad_value);
2310 return FALSE;
2311 }
2312
2313 sh_elf64_copy_private_data_internal (ibfd, obfd);
2314
2315 /* I can't think of anything sane other than old_flags being EF_SH5 and
2316 that we need to preserve that. */
2317 elf_elfheader (obfd)->e_flags = old_flags;
2318
2319 return sh_elf64_set_mach_from_flags (obfd);
2320 }
2321
2322 /* Return the section that should be marked against GC for a given
2323 relocation. */
2324
2325 static asection *
2326 sh_elf64_gc_mark_hook (asection *sec,
2327 struct bfd_link_info *info,
2328 Elf_Internal_Rela *rel,
2329 struct elf_link_hash_entry *h,
2330 Elf_Internal_Sym *sym)
2331 {
2332 if (h != NULL)
2333 switch (ELF64_R_TYPE (rel->r_info))
2334 {
2335 case R_SH_GNU_VTINHERIT:
2336 case R_SH_GNU_VTENTRY:
2337 return NULL;
2338 }
2339
2340 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2341 }
2342
2343 /* Look through the relocs for a section during the first phase.
2344 Since we don't do .gots or .plts, we just need to consider the
2345 virtual table relocs for gc. */
2346
2347 static bfd_boolean
2348 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2349 asection *sec, const Elf_Internal_Rela *relocs)
2350 {
2351 Elf_Internal_Shdr *symtab_hdr;
2352 struct elf_link_hash_entry **sym_hashes;
2353 const Elf_Internal_Rela *rel;
2354 const Elf_Internal_Rela *rel_end;
2355 bfd *dynobj;
2356 bfd_vma *local_got_offsets;
2357 asection *sgot;
2358 asection *srelgot;
2359 asection *sreloc;
2360
2361 sreloc = NULL;
2362
2363 if (bfd_link_relocatable (info))
2364 return TRUE;
2365
2366 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2367 sym_hashes = elf_sym_hashes (abfd);
2368
2369 dynobj = elf_hash_table (info)->dynobj;
2370 local_got_offsets = elf_local_got_offsets (abfd);
2371
2372 rel_end = relocs + sec->reloc_count;
2373 for (rel = relocs; rel < rel_end; rel++)
2374 {
2375 struct elf_link_hash_entry *h;
2376 unsigned long r_symndx;
2377
2378 r_symndx = ELF64_R_SYM (rel->r_info);
2379 if (r_symndx < symtab_hdr->sh_info)
2380 h = NULL;
2381 else
2382 {
2383 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2384 while (h->root.type == bfd_link_hash_indirect
2385 || h->root.type == bfd_link_hash_warning)
2386 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2387 }
2388
2389 /* Some relocs require a global offset table. */
2390 if (dynobj == NULL)
2391 {
2392 switch (ELF64_R_TYPE (rel->r_info))
2393 {
2394 case R_SH_GOTPLT_LOW16:
2395 case R_SH_GOTPLT_MEDLOW16:
2396 case R_SH_GOTPLT_MEDHI16:
2397 case R_SH_GOTPLT_HI16:
2398 case R_SH_GOTPLT10BY4:
2399 case R_SH_GOTPLT10BY8:
2400 case R_SH_GOT_LOW16:
2401 case R_SH_GOT_MEDLOW16:
2402 case R_SH_GOT_MEDHI16:
2403 case R_SH_GOT_HI16:
2404 case R_SH_GOT10BY4:
2405 case R_SH_GOT10BY8:
2406 case R_SH_GOTOFF_LOW16:
2407 case R_SH_GOTOFF_MEDLOW16:
2408 case R_SH_GOTOFF_MEDHI16:
2409 case R_SH_GOTOFF_HI16:
2410 case R_SH_GOTPC_LOW16:
2411 case R_SH_GOTPC_MEDLOW16:
2412 case R_SH_GOTPC_MEDHI16:
2413 case R_SH_GOTPC_HI16:
2414 elf_hash_table (info)->dynobj = dynobj = abfd;
2415 if (! _bfd_elf_create_got_section (dynobj, info))
2416 return FALSE;
2417 break;
2418
2419 default:
2420 break;
2421 }
2422 }
2423
2424 switch (ELF64_R_TYPE (rel->r_info))
2425 {
2426 /* This relocation describes the C++ object vtable hierarchy.
2427 Reconstruct it for later use during GC. */
2428 case R_SH_GNU_VTINHERIT:
2429 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2430 return FALSE;
2431 break;
2432
2433 /* This relocation describes which C++ vtable entries are actually
2434 used. Record for later use during GC. */
2435 case R_SH_GNU_VTENTRY:
2436 BFD_ASSERT (h != NULL);
2437 if (h != NULL
2438 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2439 return FALSE;
2440 break;
2441
2442 force_got:
2443 case R_SH_GOT_LOW16:
2444 case R_SH_GOT_MEDLOW16:
2445 case R_SH_GOT_MEDHI16:
2446 case R_SH_GOT_HI16:
2447 case R_SH_GOT10BY4:
2448 case R_SH_GOT10BY8:
2449 /* This symbol requires a global offset table entry. */
2450
2451 sgot = elf_hash_table (info)->sgot;
2452 srelgot = elf_hash_table (info)->srelgot;
2453 BFD_ASSERT (sgot != NULL && srelgot != NULL);
2454
2455 if (h != NULL)
2456 {
2457 if (h->type == STT_DATALABEL)
2458 {
2459 struct elf_sh64_link_hash_entry *hsh;
2460
2461 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2462 hsh = (struct elf_sh64_link_hash_entry *)h;
2463 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2464 break;
2465
2466 hsh->datalabel_got_offset = sgot->size;
2467 }
2468 else
2469 {
2470 if (h->got.offset != (bfd_vma) -1)
2471 {
2472 /* We have already allocated space in the .got. */
2473 break;
2474 }
2475 h->got.offset = sgot->size;
2476 }
2477
2478 /* Make sure this symbol is output as a dynamic symbol. */
2479 if (h->dynindx == -1)
2480 {
2481 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2482 return FALSE;
2483 }
2484
2485 srelgot->size += sizeof (Elf64_External_Rela);
2486 }
2487 else
2488 {
2489 /* This is a global offset table entry for a local
2490 symbol. */
2491 if (local_got_offsets == NULL)
2492 {
2493 size_t size;
2494 register unsigned int i;
2495
2496 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2497 /* Reserve space for both the datalabel and
2498 codelabel local GOT offsets. */
2499 size *= 2;
2500 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2501 if (local_got_offsets == NULL)
2502 return FALSE;
2503 elf_local_got_offsets (abfd) = local_got_offsets;
2504 for (i = 0; i < symtab_hdr->sh_info; i++)
2505 local_got_offsets[i] = (bfd_vma) -1;
2506 for (; i < 2 * symtab_hdr->sh_info; i++)
2507 local_got_offsets[i] = (bfd_vma) -1;
2508 }
2509 if ((rel->r_addend & 1) != 0)
2510 {
2511 if (local_got_offsets[symtab_hdr->sh_info
2512 + r_symndx] != (bfd_vma) -1)
2513 {
2514 /* We have already allocated space in the .got. */
2515 break;
2516 }
2517 local_got_offsets[symtab_hdr->sh_info
2518 + r_symndx] = sgot->size;
2519 }
2520 else
2521 {
2522 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2523 {
2524 /* We have already allocated space in the .got. */
2525 break;
2526 }
2527 local_got_offsets[r_symndx] = sgot->size;
2528 }
2529
2530 if (bfd_link_pic (info))
2531 {
2532 /* If we are generating a shared object, we need to
2533 output a R_SH_RELATIVE reloc so that the dynamic
2534 linker can adjust this GOT entry. */
2535 srelgot->size += sizeof (Elf64_External_Rela);
2536 }
2537 }
2538
2539 sgot->size += 8;
2540
2541 break;
2542
2543 case R_SH_GOTPLT_LOW16:
2544 case R_SH_GOTPLT_MEDLOW16:
2545 case R_SH_GOTPLT_MEDHI16:
2546 case R_SH_GOTPLT_HI16:
2547 case R_SH_GOTPLT10BY4:
2548 case R_SH_GOTPLT10BY8:
2549 /* If this is a local symbol, we resolve it directly without
2550 creating a procedure linkage table entry. */
2551
2552 if (h == NULL
2553 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2554 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2555 || ! bfd_link_pic (info)
2556 || info->symbolic
2557 || h->dynindx == -1
2558 || h->got.offset != (bfd_vma) -1)
2559 goto force_got;
2560
2561 /* Make sure this symbol is output as a dynamic symbol. */
2562 if (h->dynindx == -1)
2563 {
2564 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2565 return FALSE;
2566 }
2567
2568 h->needs_plt = 1;
2569
2570 break;
2571
2572 case R_SH_PLT_LOW16:
2573 case R_SH_PLT_MEDLOW16:
2574 case R_SH_PLT_MEDHI16:
2575 case R_SH_PLT_HI16:
2576 /* This symbol requires a procedure linkage table entry. We
2577 actually build the entry in adjust_dynamic_symbol,
2578 because this might be a case of linking PIC code which is
2579 never referenced by a dynamic object, in which case we
2580 don't need to generate a procedure linkage table entry
2581 after all. */
2582
2583 /* If this is a local symbol, we resolve it directly without
2584 creating a procedure linkage table entry. */
2585 if (h == NULL)
2586 continue;
2587
2588 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2589 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2590 break;
2591
2592 h->needs_plt = 1;
2593
2594 break;
2595
2596 case R_SH_64:
2597 case R_SH_64_PCREL:
2598 if (h != NULL)
2599 h->non_got_ref = 1;
2600
2601 /* If we are creating a shared library, and this is a reloc
2602 against a global symbol, or a non PC relative reloc
2603 against a local symbol, then we need to copy the reloc
2604 into the shared library. However, if we are linking with
2605 -Bsymbolic, we do not need to copy a reloc against a
2606 global symbol which is defined in an object we are
2607 including in the link (i.e., DEF_REGULAR is set). At
2608 this point we have not seen all the input files, so it is
2609 possible that DEF_REGULAR is not set now but will be set
2610 later (it is never cleared). We account for that
2611 possibility below by storing information in the
2612 pcrel_relocs_copied field of the hash table entry. */
2613 if (bfd_link_pic (info)
2614 && (sec->flags & SEC_ALLOC) != 0
2615 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2616 || (h != NULL
2617 && (! info->symbolic
2618 || !h->def_regular))))
2619 {
2620 /* When creating a shared object, we must copy these
2621 reloc types into the output file. We create a reloc
2622 section in dynobj and make room for this reloc. */
2623 if (sreloc == NULL)
2624 {
2625 sreloc = _bfd_elf_make_dynamic_reloc_section
2626 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
2627
2628 if (sreloc == NULL)
2629 return FALSE;
2630 }
2631
2632 sreloc->size += sizeof (Elf64_External_Rela);
2633
2634 /* If we are linking with -Bsymbolic, and this is a
2635 global symbol, we count the number of PC relative
2636 relocations we have entered for this symbol, so that
2637 we can discard them again if the symbol is later
2638 defined by a regular object. Note that this function
2639 is only called if we are using an elf_sh linker
2640 hash table, which means that h is really a pointer to
2641 an elf_sh_link_hash_entry. */
2642 if (h != NULL && info->symbolic
2643 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2644 {
2645 struct elf_sh64_link_hash_entry *eh;
2646 struct elf_sh64_pcrel_relocs_copied *p;
2647
2648 eh = (struct elf_sh64_link_hash_entry *) h;
2649
2650 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2651 if (p->section == sreloc)
2652 break;
2653
2654 if (p == NULL)
2655 {
2656 p = ((struct elf_sh64_pcrel_relocs_copied *)
2657 bfd_alloc (dynobj, sizeof *p));
2658 if (p == NULL)
2659 return FALSE;
2660 p->next = eh->pcrel_relocs_copied;
2661 eh->pcrel_relocs_copied = p;
2662 p->section = sreloc;
2663 p->count = 0;
2664 }
2665
2666 ++p->count;
2667 }
2668 }
2669
2670 break;
2671 }
2672 }
2673
2674 return TRUE;
2675 }
2676
2677 static int
2678 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2679 {
2680 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2681 return STT_DATALABEL;
2682
2683 return type;
2684 }
2685
2686 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2687 Either file can presumably exist without the other, but do not differ
2688 in elf-size-ness. How to share?
2689
2690 Hook called by the linker routine which adds symbols from an object
2691 file. We must make indirect symbols for undefined symbols marked with
2692 STT_DATALABEL, so relocations passing them will pick up that attribute
2693 and neutralize STO_SH5_ISA32 found on the symbol definition.
2694
2695 There is a problem, though: We want to fill in the hash-table entry for
2696 this symbol and signal to the caller that no further processing is
2697 needed. But we don't have the index for this hash-table entry. We
2698 rely here on that the current entry is the first hash-entry with NULL,
2699 which seems brittle. Also, iterating over the hash-table to find that
2700 entry is a linear operation on the number of symbols in this input
2701 file, and this function should take constant time, so that's not good
2702 too. Only comfort is that DataLabel references should only be found in
2703 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2704 into adding an option to elf_add_symbol_hook (preferably) for the index
2705 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2706 (not so good). */
2707
2708 static bfd_boolean
2709 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2710 Elf_Internal_Sym *sym, const char **namep,
2711 flagword *flagsp ATTRIBUTE_UNUSED,
2712 asection **secp, bfd_vma *valp)
2713 {
2714 /* We want to do this for relocatable as well as final linking. */
2715 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2716 && is_elf_hash_table (info->hash))
2717 {
2718 struct elf_link_hash_entry *h;
2719
2720 /* For relocatable links, we register the DataLabel sym in its own
2721 right, and tweak the name when it's output. Otherwise, we make
2722 an indirect symbol of it. */
2723 flagword flags
2724 = bfd_link_relocatable (info) || info->emitrelocations
2725 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2726
2727 char *dl_name
2728 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2729 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2730
2731 BFD_ASSERT (sym_hash != NULL);
2732
2733 /* Allocation may fail. */
2734 if (dl_name == NULL)
2735 return FALSE;
2736
2737 strcpy (dl_name, *namep);
2738 strcat (dl_name, DATALABEL_SUFFIX);
2739
2740 h = (struct elf_link_hash_entry *)
2741 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2742
2743 if (h == NULL)
2744 {
2745 /* No previous datalabel symbol. Make one. */
2746 struct bfd_link_hash_entry *bh = NULL;
2747 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2748
2749 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2750 flags, *secp, *valp,
2751 *namep, FALSE,
2752 bed->collect, &bh))
2753 {
2754 free (dl_name);
2755 return FALSE;
2756 }
2757
2758 h = (struct elf_link_hash_entry *) bh;
2759 h->non_elf = 0;
2760 h->type = STT_DATALABEL;
2761 }
2762 else
2763 /* If a new symbol was created, it holds the allocated name.
2764 Otherwise, we don't need it anymore and should deallocate it. */
2765 free (dl_name);
2766
2767 if (h->type != STT_DATALABEL
2768 || ((bfd_link_relocatable (info) || info->emitrelocations)
2769 && h->root.type != bfd_link_hash_undefined)
2770 || (! bfd_link_relocatable (info) && !info->emitrelocations
2771 && h->root.type != bfd_link_hash_indirect))
2772 {
2773 /* Make sure we don't get confused on invalid input. */
2774 _bfd_error_handler
2775 (_("%pB: encountered datalabel symbol in input"), abfd);
2776 bfd_set_error (bfd_error_bad_value);
2777 return FALSE;
2778 }
2779
2780 /* Now find the hash-table slot for this entry and fill it in. */
2781 while (*sym_hash != NULL)
2782 sym_hash++;
2783 *sym_hash = h;
2784
2785 /* Signal to caller to skip this symbol - we've handled it. */
2786 *namep = NULL;
2787 }
2788
2789 return TRUE;
2790 }
2791
2792 /* This hook function is called before the linker writes out a global
2793 symbol. For relocatable links, DataLabel symbols will be present in
2794 linker output. We cut off the special suffix on those symbols, so the
2795 right name appears in the output.
2796
2797 When linking and emitting relocations, there can appear global symbols
2798 that are not referenced by relocs, but rather only implicitly through
2799 DataLabel references, a relation that is not visible to the linker.
2800 Since no stripping of global symbols in done when doing such linking,
2801 we don't need to look up and make sure to emit the main symbol for each
2802 DataLabel symbol. */
2803
2804 static int
2805 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2806 const char *cname,
2807 Elf_Internal_Sym *sym,
2808 asection *input_sec ATTRIBUTE_UNUSED,
2809 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2810 {
2811 char *name = (char *) cname;
2812
2813 if (bfd_link_relocatable (info) || info->emitrelocations)
2814 {
2815 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2816 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2817 }
2818
2819 return 1;
2820 }
2821
2822 /* Set bit 0 on the entry address; it always points to SHmedia code. This
2823 is mostly for symmetry with the 32-bit format, where code can be
2824 SHcompact and we need to make a distinction to make sure execution
2825 starts in the right ISA mode. It is also convenient for a loader,
2826 which would otherwise have to set this bit when loading a TR register
2827 before jumping to the program entry. */
2828
2829 static void
2830 sh64_elf64_final_write_processing (bfd *abfd,
2831 bfd_boolean linker ATTRIBUTE_UNUSED)
2832 {
2833 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
2834 numerically, but we currently lack the infrastructure to recognize
2835 that: The entry symbol, and info whether it is numeric or a symbol
2836 name is kept private in the linker. */
2837 if (elf_elfheader (abfd)->e_type == ET_EXEC)
2838 elf_elfheader (abfd)->e_entry |= 1;
2839 }
2840
2841 /* First entry in an absolute procedure linkage table look like this. */
2842
2843 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
2844 {
2845 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
2846 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
2847 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
2848 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2849 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2850 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2851 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2852 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2853 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2854 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2855 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2856 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2857 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2858 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2859 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2860 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2861 };
2862
2863 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
2864 {
2865 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
2866 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
2867 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
2868 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2869 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2870 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2871 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2872 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2873 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2874 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2875 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2876 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2877 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2878 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2879 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2880 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2881 };
2882
2883 /* Sebsequent entries in an absolute procedure linkage table look like
2884 this. */
2885
2886 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
2887 {
2888 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
2889 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
2890 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
2891 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
2892 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
2893 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2894 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2895 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2896 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
2897 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
2898 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
2899 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2900 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2901 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2902 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2903 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2904 };
2905
2906 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
2907 {
2908 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
2909 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2910 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2911 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2912 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
2913 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2914 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2915 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2916 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
2917 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
2918 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
2919 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2920 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2921 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2922 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2923 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2924 };
2925
2926 /* Entries in a PIC procedure linkage table look like this. */
2927
2928 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
2929 {
2930 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
2931 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
2932 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
2933 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2934 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2935 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2936 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2937 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2938 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
2939 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
2940 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2941 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2942 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2943 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2944 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2945 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2946 };
2947
2948 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
2949 {
2950 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
2951 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
2952 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
2953 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2954 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2955 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2956 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2957 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2958 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
2959 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
2960 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2961 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2962 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2963 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2964 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2965 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2966 };
2967
2968 static const bfd_byte *elf_sh64_plt0_entry;
2969 static const bfd_byte *elf_sh64_plt_entry;
2970 static const bfd_byte *elf_sh64_pic_plt_entry;
2971
2972 /* Create an entry in an sh ELF linker hash table. */
2973
2974 static struct bfd_hash_entry *
2975 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
2976 struct bfd_hash_table *table,
2977 const char *string)
2978 {
2979 struct elf_sh64_link_hash_entry *ret =
2980 (struct elf_sh64_link_hash_entry *) entry;
2981
2982 /* Allocate the structure if it has not already been allocated by a
2983 subclass. */
2984 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
2985 ret = ((struct elf_sh64_link_hash_entry *)
2986 bfd_hash_allocate (table,
2987 sizeof (struct elf_sh64_link_hash_entry)));
2988 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
2989 return (struct bfd_hash_entry *) ret;
2990
2991 /* Call the allocation method of the superclass. */
2992 ret = ((struct elf_sh64_link_hash_entry *)
2993 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2994 table, string));
2995 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
2996 {
2997 ret->pcrel_relocs_copied = NULL;
2998 ret->datalabel_got_offset = (bfd_vma) -1;
2999 }
3000
3001 return (struct bfd_hash_entry *) ret;
3002 }
3003
3004 /* Create an sh64 ELF linker hash table. */
3005
3006 static struct bfd_link_hash_table *
3007 sh64_elf64_link_hash_table_create (bfd *abfd)
3008 {
3009 struct elf_link_hash_table *ret;
3010
3011 ret = (struct elf_link_hash_table *) bfd_zmalloc (sizeof (* ret));
3012 if (ret == (struct elf_link_hash_table *) NULL)
3013 return NULL;
3014
3015 if (!_bfd_elf_link_hash_table_init (ret, abfd,
3016 sh64_elf64_link_hash_newfunc,
3017 sizeof (struct elf_sh64_link_hash_entry),
3018 GENERIC_ELF_DATA))
3019 {
3020 free (ret);
3021 return NULL;
3022 }
3023
3024 return &ret->root;
3025 }
3026
3027 inline static void
3028 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
3029 {
3030 bfd_put_32 (output_bfd,
3031 bfd_get_32 (output_bfd, addr)
3032 | ((value >> 6) & 0x3fffc00),
3033 addr);
3034 bfd_put_32 (output_bfd,
3035 bfd_get_32 (output_bfd, addr + 4)
3036 | ((value << 10) & 0x3fffc00),
3037 addr + 4);
3038 }
3039
3040 inline static void
3041 movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr)
3042 {
3043 bfd_put_32 (output_bfd,
3044 bfd_get_32 (output_bfd, addr)
3045 | ((value >> 38) & 0x3fffc00),
3046 addr);
3047 bfd_put_32 (output_bfd,
3048 bfd_get_32 (output_bfd, addr + 4)
3049 | ((value >> 22) & 0x3fffc00),
3050 addr + 4);
3051 bfd_put_32 (output_bfd,
3052 bfd_get_32 (output_bfd, addr + 8)
3053 | ((value >> 6) & 0x3fffc00),
3054 addr + 8);
3055 bfd_put_32 (output_bfd,
3056 bfd_get_32 (output_bfd, addr + 12)
3057 | ((value << 10) & 0x3fffc00),
3058 addr + 12);
3059 }
3060
3061 /* Create dynamic sections when linking against a dynamic object. */
3062
3063 static bfd_boolean
3064 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3065 {
3066 flagword flags, pltflags;
3067 register asection *s;
3068 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3069 int ptralign = 0;
3070
3071 switch (bed->s->arch_size)
3072 {
3073 case 32:
3074 ptralign = 2;
3075 break;
3076
3077 case 64:
3078 ptralign = 3;
3079 break;
3080
3081 default:
3082 bfd_set_error (bfd_error_bad_value);
3083 return FALSE;
3084 }
3085
3086 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3087 .rel[a].bss sections. */
3088
3089 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3090 | SEC_LINKER_CREATED);
3091
3092 pltflags = flags;
3093 pltflags |= SEC_CODE;
3094 if (bed->plt_not_loaded)
3095 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3096 if (bed->plt_readonly)
3097 pltflags |= SEC_READONLY;
3098
3099 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
3100 if (s == NULL
3101 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3102 return FALSE;
3103
3104 if (bed->want_plt_sym)
3105 {
3106 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3107 .plt section. */
3108 struct elf_link_hash_entry *h;
3109 struct bfd_link_hash_entry *bh = NULL;
3110
3111 if (! (_bfd_generic_link_add_one_symbol
3112 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3113 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3114 return FALSE;
3115
3116 h = (struct elf_link_hash_entry *) bh;
3117 h->def_regular = 1;
3118 h->type = STT_OBJECT;
3119 elf_hash_table (info)->hplt = h;
3120
3121 if (bfd_link_pic (info)
3122 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3123 return FALSE;
3124 }
3125
3126 s = bfd_make_section_anyway_with_flags (abfd,
3127 bed->default_use_rela_p
3128 ? ".rela.plt" : ".rel.plt",
3129 flags | SEC_READONLY);
3130 if (s == NULL
3131 || ! bfd_set_section_alignment (abfd, s, ptralign))
3132 return FALSE;
3133
3134 if (! _bfd_elf_create_got_section (abfd, info))
3135 return FALSE;
3136
3137 if (bed->want_dynbss)
3138 {
3139 /* The .dynbss section is a place to put symbols which are defined
3140 by dynamic objects, are referenced by regular objects, and are
3141 not functions. We must allocate space for them in the process
3142 image and use a R_*_COPY reloc to tell the dynamic linker to
3143 initialize them at run time. The linker script puts the .dynbss
3144 section into the .bss section of the final image. */
3145 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3146 SEC_ALLOC | SEC_LINKER_CREATED);
3147 if (s == NULL)
3148 return FALSE;
3149
3150 /* The .rel[a].bss section holds copy relocs. This section is not
3151 normally needed. We need to create it here, though, so that the
3152 linker will map it to an output section. We can't just create it
3153 only if we need it, because we will not know whether we need it
3154 until we have seen all the input files, and the first time the
3155 main linker code calls BFD after examining all the input files
3156 (size_dynamic_sections) the input sections have already been
3157 mapped to the output sections. If the section turns out not to
3158 be needed, we can discard it later. We will never need this
3159 section when generating a shared object, since they do not use
3160 copy relocs. */
3161 if (! bfd_link_pic (info))
3162 {
3163 s = bfd_make_section_anyway_with_flags (abfd,
3164 (bed->default_use_rela_p
3165 ? ".rela.bss" : ".rel.bss"),
3166 flags | SEC_READONLY);
3167 if (s == NULL
3168 || ! bfd_set_section_alignment (abfd, s, ptralign))
3169 return FALSE;
3170 }
3171 }
3172
3173 return TRUE;
3174 }
3175 \f
3176 /* Adjust a symbol defined by a dynamic object and referenced by a
3177 regular object. The current definition is in some section of the
3178 dynamic object, but we're not including those sections. We have to
3179 change the definition to something the rest of the link can
3180 understand. */
3181
3182 static bfd_boolean
3183 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3184 struct elf_link_hash_entry *h)
3185 {
3186 bfd *dynobj;
3187 asection *s;
3188
3189 dynobj = elf_hash_table (info)->dynobj;
3190
3191 /* Make sure we know what is going on here. */
3192 BFD_ASSERT (dynobj != NULL
3193 && (h->needs_plt
3194 || h->is_weakalias
3195 || (h->def_dynamic
3196 && h->ref_regular
3197 && !h->def_regular)));
3198
3199 /* If this is a function, put it in the procedure linkage table. We
3200 will fill in the contents of the procedure linkage table later,
3201 when we know the address of the .got section. */
3202 if (h->type == STT_FUNC
3203 || h->needs_plt)
3204 {
3205 if (! bfd_link_pic (info)
3206 && !h->def_dynamic
3207 && !h->ref_dynamic)
3208 {
3209 /* This case can occur if we saw a PLT reloc in an input
3210 file, but the symbol was never referred to by a dynamic
3211 object. In such a case, we don't actually need to build
3212 a procedure linkage table, and we can just do a REL64
3213 reloc instead. */
3214 BFD_ASSERT (h->needs_plt);
3215 return TRUE;
3216 }
3217
3218 /* Make sure this symbol is output as a dynamic symbol. */
3219 if (h->dynindx == -1)
3220 {
3221 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3222 return FALSE;
3223 }
3224
3225 s = elf_hash_table (info)->splt;
3226 BFD_ASSERT (s != NULL);
3227
3228 /* If this is the first .plt entry, make room for the special
3229 first entry. */
3230 if (s->size == 0)
3231 s->size += PLT_ENTRY_SIZE;
3232
3233 /* If this symbol is not defined in a regular file, and we are
3234 not generating a shared library, then set the symbol to this
3235 location in the .plt. This is required to make function
3236 pointers compare as equal between the normal executable and
3237 the shared library. */
3238 if (! bfd_link_pic (info)
3239 && !h->def_regular)
3240 {
3241 h->root.u.def.section = s;
3242 h->root.u.def.value = s->size;
3243 }
3244
3245 h->plt.offset = s->size;
3246
3247 /* Make room for this entry. */
3248 s->size += elf_sh64_sizeof_plt (info);
3249
3250 /* We also need to make an entry in the .got.plt section, which
3251 will be placed in the .got section by the linker script. */
3252
3253 s = elf_hash_table (info)->sgotplt;
3254 BFD_ASSERT (s != NULL);
3255 s->size += 8;
3256
3257 /* We also need to make an entry in the .rela.plt section. */
3258
3259 s = elf_hash_table (info)->srelplt;
3260 BFD_ASSERT (s != NULL);
3261 s->size += sizeof (Elf64_External_Rela);
3262
3263 return TRUE;
3264 }
3265
3266 /* If this is a weak symbol, and there is a real definition, the
3267 processor independent code will have arranged for us to see the
3268 real definition first, and we can just use the same value. */
3269 if (h->is_weakalias)
3270 {
3271 struct elf_link_hash_entry *def = weakdef (h);
3272 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
3273 h->root.u.def.section = def->root.u.def.section;
3274 h->root.u.def.value = def->root.u.def.value;
3275 return TRUE;
3276 }
3277
3278 /* This is a reference to a symbol defined by a dynamic object which
3279 is not a function. */
3280
3281 /* If we are creating a shared library, we must presume that the
3282 only references to the symbol are via the global offset table.
3283 For such cases we need not do anything here; the relocations will
3284 be handled correctly by relocate_section. */
3285 if (bfd_link_pic (info))
3286 return TRUE;
3287
3288 /* If there are no references to this symbol that do not use the
3289 GOT, we don't need to generate a copy reloc. */
3290 if (!h->non_got_ref)
3291 return TRUE;
3292
3293 /* We must allocate the symbol in our .dynbss section, which will
3294 become part of the .bss section of the executable. There will be
3295 an entry for this symbol in the .dynsym section. The dynamic
3296 object will contain position independent code, so all references
3297 from the dynamic object to this symbol will go through the global
3298 offset table. The dynamic linker will use the .dynsym entry to
3299 determine the address it must put in the global offset table, so
3300 both the dynamic object and the regular object will refer to the
3301 same memory location for the variable. */
3302
3303 s = bfd_get_linker_section (dynobj, ".dynbss");
3304 BFD_ASSERT (s != NULL);
3305
3306 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3307 copy the initial value out of the dynamic object and into the
3308 runtime process image. We need to remember the offset into the
3309 .rela.bss section we are going to use. */
3310 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
3311 {
3312 asection *srel;
3313
3314 srel = bfd_get_linker_section (dynobj, ".rela.bss");
3315 BFD_ASSERT (srel != NULL);
3316 srel->size += sizeof (Elf64_External_Rela);
3317 h->needs_copy = 1;
3318 }
3319
3320 return _bfd_elf_adjust_dynamic_copy (info, h, s);
3321 }
3322
3323 /* This function is called via sh_elf_link_hash_traverse if we are
3324 creating a shared object with -Bsymbolic. It discards the space
3325 allocated to copy PC relative relocs against symbols which are
3326 defined in regular objects. We allocated space for them in the
3327 check_relocs routine, but we won't fill them in in the
3328 relocate_section routine. */
3329
3330 static bfd_boolean
3331 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3332 void *ignore ATTRIBUTE_UNUSED)
3333 {
3334 struct elf_sh64_pcrel_relocs_copied *s;
3335
3336 /* We only discard relocs for symbols defined in a regular object. */
3337 if (!h->root.def_regular)
3338 return TRUE;
3339
3340 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3341 s->section->size -= s->count * sizeof (Elf64_External_Rela);
3342
3343 return TRUE;
3344 }
3345
3346 /* Set the sizes of the dynamic sections. */
3347
3348 static bfd_boolean
3349 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3350 struct bfd_link_info *info)
3351 {
3352 bfd *dynobj;
3353 asection *s;
3354 bfd_boolean plt;
3355 bfd_boolean relocs;
3356 bfd_boolean reltext;
3357
3358 dynobj = elf_hash_table (info)->dynobj;
3359 BFD_ASSERT (dynobj != NULL);
3360
3361 if (elf_hash_table (info)->dynamic_sections_created)
3362 {
3363 /* Set the contents of the .interp section to the interpreter. */
3364 if (bfd_link_executable (info) && !info->nointerp)
3365 {
3366 s = bfd_get_linker_section (dynobj, ".interp");
3367 BFD_ASSERT (s != NULL);
3368 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3369 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3370 }
3371 }
3372 else
3373 {
3374 /* We may have created entries in the .rela.got section.
3375 However, if we are not creating the dynamic sections, we will
3376 not actually use these entries. Reset the size of .rela.got,
3377 which will cause it to get stripped from the output file
3378 below. */
3379 s = elf_hash_table (info)->srelgot;
3380 if (s != NULL)
3381 s->size = 0;
3382 }
3383
3384 /* If this is a -Bsymbolic shared link, then we need to discard all
3385 PC relative relocs against symbols defined in a regular object.
3386 We allocated space for them in the check_relocs routine, but we
3387 will not fill them in in the relocate_section routine. */
3388 if (bfd_link_pic (info) && info->symbolic)
3389 sh64_elf64_link_hash_traverse (elf_hash_table (info),
3390 sh64_elf64_discard_copies, NULL);
3391
3392 /* The check_relocs and adjust_dynamic_symbol entry points have
3393 determined the sizes of the various dynamic sections. Allocate
3394 memory for them. */
3395 plt = FALSE;
3396 relocs = FALSE;
3397 reltext = FALSE;
3398 for (s = dynobj->sections; s != NULL; s = s->next)
3399 {
3400 const char *name;
3401
3402 if ((s->flags & SEC_LINKER_CREATED) == 0)
3403 continue;
3404
3405 /* It's OK to base decisions on the section name, because none
3406 of the dynobj section names depend upon the input files. */
3407 name = bfd_get_section_name (dynobj, s);
3408
3409 if (strcmp (name, ".plt") == 0)
3410 {
3411 /* Remember whether there is a PLT. */
3412 plt = s->size != 0;
3413 }
3414 else if (CONST_STRNEQ (name, ".rela"))
3415 {
3416 if (s->size != 0)
3417 {
3418 asection *target;
3419
3420 /* Remember whether there are any reloc sections other
3421 than .rela.plt. */
3422 if (strcmp (name, ".rela.plt") != 0)
3423 {
3424 const char *outname;
3425
3426 relocs = TRUE;
3427
3428 /* If this relocation section applies to a read only
3429 section, then we probably need a DT_TEXTREL
3430 entry. The entries in the .rela.plt section
3431 really apply to the .got section, which we
3432 created ourselves and so know is not readonly. */
3433 outname = bfd_get_section_name (output_bfd,
3434 s->output_section);
3435 target = bfd_get_section_by_name (output_bfd, outname + 5);
3436 if (target != NULL
3437 && (target->flags & SEC_READONLY) != 0
3438 && (target->flags & SEC_ALLOC) != 0)
3439 reltext = TRUE;
3440 }
3441
3442 /* We use the reloc_count field as a counter if we need
3443 to copy relocs into the output file. */
3444 s->reloc_count = 0;
3445 }
3446 }
3447 else if (! CONST_STRNEQ (name, ".got")
3448 && strcmp (name, ".dynbss") != 0)
3449 {
3450 /* It's not one of our sections, so don't allocate space. */
3451 continue;
3452 }
3453
3454 if (s->size == 0)
3455 {
3456 /* If we don't need this section, strip it from the
3457 output file. This is mostly to handle .rela.bss and
3458 .rela.plt. We must create both sections in
3459 create_dynamic_sections, because they must be created
3460 before the linker maps input sections to output
3461 sections. The linker does that before
3462 adjust_dynamic_symbol is called, and it is that
3463 function which decides whether anything needs to go
3464 into these sections. */
3465 s->flags |= SEC_EXCLUDE;
3466 continue;
3467 }
3468
3469 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3470 continue;
3471
3472 /* Allocate memory for the section contents. */
3473 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3474 if (s->contents == NULL)
3475 return FALSE;
3476 }
3477
3478 if (elf_hash_table (info)->dynamic_sections_created)
3479 {
3480 /* Add some entries to the .dynamic section. We fill in the
3481 values later, in sh64_elf64_finish_dynamic_sections, but we
3482 must add the entries now so that we get the correct size for
3483 the .dynamic section. The DT_DEBUG entry is filled in by the
3484 dynamic linker and used by the debugger. */
3485 if (bfd_link_executable (info))
3486 {
3487 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3488 return FALSE;
3489 }
3490
3491 if (plt)
3492 {
3493 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3494 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3495 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3496 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3497 return FALSE;
3498 }
3499
3500 if (relocs)
3501 {
3502 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3503 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3504 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3505 sizeof (Elf64_External_Rela)))
3506 return FALSE;
3507 }
3508
3509 if (reltext)
3510 {
3511 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3512 return FALSE;
3513 }
3514 }
3515
3516 return TRUE;
3517 }
3518
3519 /* Finish up dynamic symbol handling. We set the contents of various
3520 dynamic sections here. */
3521
3522 static bfd_boolean
3523 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3524 struct bfd_link_info *info,
3525 struct elf_link_hash_entry *h,
3526 Elf_Internal_Sym *sym)
3527 {
3528 bfd *dynobj;
3529
3530 dynobj = elf_hash_table (info)->dynobj;
3531
3532 if (h->plt.offset != (bfd_vma) -1)
3533 {
3534 asection *splt;
3535 asection *sgot;
3536 asection *srel;
3537
3538 bfd_vma plt_index;
3539 bfd_vma got_offset;
3540 Elf_Internal_Rela rel;
3541 bfd_byte *loc;
3542
3543 /* This symbol has an entry in the procedure linkage table. Set
3544 it up. */
3545
3546 BFD_ASSERT (h->dynindx != -1);
3547
3548 splt = elf_hash_table (info)->splt;
3549 sgot = elf_hash_table (info)->sgotplt;
3550 srel = elf_hash_table (info)->srelplt;
3551 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3552
3553 /* Get the index in the procedure linkage table which
3554 corresponds to this symbol. This is the index of this symbol
3555 in all the symbols for which we are making plt entries. The
3556 first entry in the procedure linkage table is reserved. */
3557 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3558
3559 /* Get the offset into the .got table of the entry that
3560 corresponds to this function. Each .got entry is 8 bytes.
3561 The first three are reserved. */
3562 got_offset = (plt_index + 3) * 8;
3563
3564 if (bfd_link_pic (info))
3565 got_offset -= GOT_BIAS;
3566
3567 /* Fill in the entry in the procedure linkage table. */
3568 if (! bfd_link_pic (info))
3569 {
3570 if (elf_sh64_plt_entry == NULL)
3571 {
3572 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3573 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3574 }
3575 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3576 elf_sh64_sizeof_plt (info));
3577 movi_3shori_putval (output_bfd,
3578 (sgot->output_section->vma
3579 + sgot->output_offset
3580 + got_offset),
3581 (splt->contents + h->plt.offset
3582 + elf_sh64_plt_symbol_offset (info)));
3583
3584 /* Set bottom bit because its for a branch to SHmedia */
3585 movi_shori_putval (output_bfd,
3586 -(h->plt.offset
3587 + elf_sh64_plt_plt0_offset (info) + 8)
3588 | 1,
3589 (splt->contents + h->plt.offset
3590 + elf_sh64_plt_plt0_offset (info)));
3591 }
3592 else
3593 {
3594 if (elf_sh64_pic_plt_entry == NULL)
3595 {
3596 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3597 elf_sh64_pic_plt_entry_be :
3598 elf_sh64_pic_plt_entry_le);
3599 }
3600 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3601 elf_sh64_sizeof_plt (info));
3602 movi_shori_putval (output_bfd, got_offset,
3603 (splt->contents + h->plt.offset
3604 + elf_sh64_plt_symbol_offset (info)));
3605 }
3606
3607 if (bfd_link_pic (info))
3608 got_offset += GOT_BIAS;
3609
3610 movi_shori_putval (output_bfd,
3611 plt_index * sizeof (Elf64_External_Rela),
3612 (splt->contents + h->plt.offset
3613 + elf_sh64_plt_reloc_offset (info)));
3614
3615 /* Fill in the entry in the global offset table. */
3616 bfd_put_64 (output_bfd,
3617 (splt->output_section->vma
3618 + splt->output_offset
3619 + h->plt.offset
3620 + elf_sh64_plt_temp_offset (info)),
3621 sgot->contents + got_offset);
3622
3623 /* Fill in the entry in the .rela.plt section. */
3624 rel.r_offset = (sgot->output_section->vma
3625 + sgot->output_offset
3626 + got_offset);
3627 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3628 rel.r_addend = 0;
3629 rel.r_addend = GOT_BIAS;
3630 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3631 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3632
3633 if (!h->def_regular)
3634 {
3635 /* Mark the symbol as undefined, rather than as defined in
3636 the .plt section. Leave the value alone. */
3637 sym->st_shndx = SHN_UNDEF;
3638 }
3639 }
3640
3641 if (h->got.offset != (bfd_vma) -1)
3642 {
3643 asection *sgot;
3644 asection *srel;
3645 Elf_Internal_Rela rel;
3646 bfd_byte *loc;
3647
3648 /* This symbol has an entry in the global offset table. Set it
3649 up. */
3650
3651 sgot = elf_hash_table (info)->sgot;
3652 srel = elf_hash_table (info)->srelgot;
3653 BFD_ASSERT (sgot != NULL && srel != NULL);
3654
3655 rel.r_offset = (sgot->output_section->vma
3656 + sgot->output_offset
3657 + (h->got.offset &~ 1));
3658
3659 /* If this is a -Bsymbolic link, and the symbol is defined
3660 locally, we just want to emit a RELATIVE reloc. Likewise if
3661 the symbol was forced to be local because of a version file.
3662 The entry in the global offset table will already have been
3663 initialized in the relocate_section function. */
3664 if (bfd_link_pic (info)
3665 && (info->symbolic || h->dynindx == -1)
3666 && h->def_regular)
3667 {
3668 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3669 rel.r_addend = (h->root.u.def.value
3670 + h->root.u.def.section->output_section->vma
3671 + h->root.u.def.section->output_offset);
3672 }
3673 else
3674 {
3675 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3676 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3677 rel.r_addend = 0;
3678 }
3679
3680 loc = srel->contents;
3681 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3682 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3683 }
3684
3685 if (h->needs_copy)
3686 {
3687 asection *s;
3688 Elf_Internal_Rela rel;
3689 bfd_byte *loc;
3690
3691 /* This symbol needs a copy reloc. Set it up. */
3692
3693 BFD_ASSERT (h->dynindx != -1
3694 && (h->root.type == bfd_link_hash_defined
3695 || h->root.type == bfd_link_hash_defweak));
3696
3697 s = bfd_get_linker_section (dynobj, ".rela.bss");
3698 BFD_ASSERT (s != NULL);
3699
3700 rel.r_offset = (h->root.u.def.value
3701 + h->root.u.def.section->output_section->vma
3702 + h->root.u.def.section->output_offset);
3703 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3704 rel.r_addend = 0;
3705 loc = s->contents;
3706 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3707 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3708 }
3709
3710 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3711 if (h == elf_hash_table (info)->hdynamic
3712 || h == elf_hash_table (info)->hgot)
3713 sym->st_shndx = SHN_ABS;
3714
3715 return TRUE;
3716 }
3717
3718 /* Finish up the dynamic sections. */
3719
3720 static bfd_boolean
3721 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3722 struct bfd_link_info *info)
3723 {
3724 bfd *dynobj;
3725 asection *sgot;
3726 asection *sdyn;
3727
3728 dynobj = elf_hash_table (info)->dynobj;
3729
3730 sgot = elf_hash_table (info)->sgotplt;
3731 BFD_ASSERT (sgot != NULL);
3732 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3733
3734 if (elf_hash_table (info)->dynamic_sections_created)
3735 {
3736 asection *splt;
3737 Elf64_External_Dyn *dyncon, *dynconend;
3738
3739 BFD_ASSERT (sdyn != NULL);
3740
3741 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3742 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3743 for (; dyncon < dynconend; dyncon++)
3744 {
3745 Elf_Internal_Dyn dyn;
3746 const char *name;
3747 asection *s;
3748 struct elf_link_hash_entry *h;
3749
3750 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3751
3752 switch (dyn.d_tag)
3753 {
3754 default:
3755 break;
3756
3757 case DT_INIT:
3758 name = info->init_function;
3759 goto get_sym;
3760
3761 case DT_FINI:
3762 name = info->fini_function;
3763 get_sym:
3764 if (dyn.d_un.d_val != 0)
3765 {
3766 h = elf_link_hash_lookup (elf_hash_table (info), name,
3767 FALSE, FALSE, TRUE);
3768 if (h != NULL && (h->other & STO_SH5_ISA32))
3769 {
3770 dyn.d_un.d_val |= 1;
3771 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3772 }
3773 }
3774 break;
3775
3776 case DT_PLTGOT:
3777 s = elf_hash_table (info)->sgotplt;
3778 goto get_vma;
3779
3780 case DT_JMPREL:
3781 s = elf_hash_table (info)->srelplt;
3782 get_vma:
3783 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3784 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3785 break;
3786
3787 case DT_PLTRELSZ:
3788 s = elf_hash_table (info)->srelplt;
3789 dyn.d_un.d_val = s->size;
3790 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3791 break;
3792 }
3793 }
3794
3795 /* Fill in the first entry in the procedure linkage table. */
3796 splt = elf_hash_table (info)->splt;
3797 if (splt && splt->size > 0)
3798 {
3799 if (bfd_link_pic (info))
3800 {
3801 if (elf_sh64_pic_plt_entry == NULL)
3802 {
3803 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3804 elf_sh64_pic_plt_entry_be :
3805 elf_sh64_pic_plt_entry_le);
3806 }
3807 memcpy (splt->contents, elf_sh64_pic_plt_entry,
3808 elf_sh64_sizeof_plt (info));
3809 }
3810 else
3811 {
3812 if (elf_sh64_plt0_entry == NULL)
3813 {
3814 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
3815 elf_sh64_plt0_entry_be :
3816 elf_sh64_plt0_entry_le);
3817 }
3818 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
3819 movi_3shori_putval (output_bfd,
3820 sgot->output_section->vma
3821 + sgot->output_offset,
3822 splt->contents
3823 + elf_sh64_plt0_gotplt_offset (info));
3824 }
3825
3826 /* UnixWare sets the entsize of .plt to 8, although that doesn't
3827 really seem like the right value. */
3828 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
3829 }
3830 }
3831
3832 /* Fill in the first three entries in the global offset table. */
3833 if (sgot->size > 0)
3834 {
3835 if (sdyn == NULL)
3836 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
3837 else
3838 bfd_put_64 (output_bfd,
3839 sdyn->output_section->vma + sdyn->output_offset,
3840 sgot->contents);
3841 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3842 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
3843 }
3844
3845 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
3846
3847 return TRUE;
3848 }
3849
3850 /* Merge non visibility st_other attribute when the symbol comes from
3851 a dynamic object. */
3852 static void
3853 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
3854 const Elf_Internal_Sym *isym,
3855 bfd_boolean definition,
3856 bfd_boolean dynamic ATTRIBUTE_UNUSED)
3857 {
3858 if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0)
3859 {
3860 unsigned char other;
3861
3862 /* Take the balance of OTHER from the definition. */
3863 other = (definition ? isym->st_other : h->other);
3864 other &= ~ ELF_ST_VISIBILITY (-1);
3865 h->other = other | ELF_ST_VISIBILITY (h->other);
3866 }
3867
3868 return;
3869 }
3870
3871 static const struct bfd_elf_special_section sh64_elf64_special_sections[]=
3872 {
3873 { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 },
3874 { NULL, 0, 0, 0, 0 }
3875 };
3876
3877 #define TARGET_BIG_SYM sh64_elf64_vec
3878 #define TARGET_BIG_NAME "elf64-sh64"
3879 #define TARGET_LITTLE_SYM sh64_elf64_le_vec
3880 #define TARGET_LITTLE_NAME "elf64-sh64l"
3881 #define ELF_ARCH bfd_arch_sh
3882 #define ELF_MACHINE_CODE EM_SH
3883 #define ELF_MAXPAGESIZE 128
3884
3885 #define elf_symbol_leading_char '_'
3886
3887 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
3888 #define bfd_elf64_bfd_reloc_name_lookup \
3889 sh_elf64_reloc_name_lookup
3890 #define elf_info_to_howto sh_elf64_info_to_howto
3891
3892 /* Note: there's no relaxation at present. */
3893
3894 #define elf_backend_relocate_section sh_elf64_relocate_section
3895 #define bfd_elf64_bfd_get_relocated_section_contents \
3896 sh_elf64_get_relocated_section_contents
3897 #define elf_backend_object_p sh_elf64_set_mach_from_flags
3898 #define bfd_elf64_bfd_set_private_flags \
3899 sh_elf64_set_private_flags
3900 #define bfd_elf64_bfd_copy_private_bfd_data \
3901 sh_elf64_copy_private_data
3902 #define bfd_elf64_bfd_merge_private_bfd_data \
3903 sh_elf64_merge_private_data
3904 #define elf_backend_fake_sections sh64_elf64_fake_sections
3905
3906 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
3907 #define elf_backend_check_relocs sh_elf64_check_relocs
3908
3909 #define elf_backend_can_gc_sections 1
3910
3911 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
3912
3913 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
3914
3915 #define elf_backend_link_output_symbol_hook \
3916 sh64_elf64_link_output_symbol_hook
3917
3918 #define elf_backend_merge_symbol_attribute \
3919 sh64_elf64_merge_symbol_attribute
3920
3921 #define elf_backend_final_write_processing \
3922 sh64_elf64_final_write_processing
3923
3924 #define elf_backend_create_dynamic_sections \
3925 sh64_elf64_create_dynamic_sections
3926 #define bfd_elf64_bfd_link_hash_table_create \
3927 sh64_elf64_link_hash_table_create
3928 #define elf_backend_adjust_dynamic_symbol \
3929 sh64_elf64_adjust_dynamic_symbol
3930 #define elf_backend_size_dynamic_sections \
3931 sh64_elf64_size_dynamic_sections
3932 #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
3933 #define elf_backend_finish_dynamic_symbol \
3934 sh64_elf64_finish_dynamic_symbol
3935 #define elf_backend_finish_dynamic_sections \
3936 sh64_elf64_finish_dynamic_sections
3937 #define elf_backend_special_sections sh64_elf64_special_sections
3938
3939 #define elf_backend_want_got_plt 1
3940 #define elf_backend_plt_readonly 1
3941 #define elf_backend_want_plt_sym 0
3942 #define elf_backend_got_header_size 24
3943 #define elf_backend_dtrel_excludes_plt 1
3944
3945 #define elf_backend_linux_prpsinfo64_ugid16 TRUE
3946
3947 #include "elf64-target.h"
3948
3949 /* NetBSD support. */
3950 #undef TARGET_BIG_SYM
3951 #define TARGET_BIG_SYM sh64_elf64_nbsd_vec
3952 #undef TARGET_BIG_NAME
3953 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
3954 #undef TARGET_LITTLE_SYM
3955 #define TARGET_LITTLE_SYM sh64_elf64_nbsd_le_vec
3956 #undef TARGET_LITTLE_NAME
3957 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
3958 #undef ELF_MAXPAGESIZE
3959 #define ELF_MAXPAGESIZE 0x10000
3960 #undef elf_symbol_leading_char
3961 #define elf_symbol_leading_char 0
3962
3963 #define elf64_bed elf64_sh64_nbsd_bed
3964
3965 #include "elf64-target.h"
3966
3967 /* Linux support. */
3968 #undef TARGET_BIG_SYM
3969 #define TARGET_BIG_SYM sh64_elf64_linux_be_vec
3970 #undef TARGET_BIG_NAME
3971 #define TARGET_BIG_NAME "elf64-sh64big-linux"
3972 #undef TARGET_LITTLE_SYM
3973 #define TARGET_LITTLE_SYM sh64_elf64_linux_vec
3974 #undef TARGET_LITTLE_NAME
3975 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
3976 #undef elf64_bed
3977 #define elf64_bed elf64_sh64_linux_bed
3978
3979 #include "elf64-target.h"
GDB Binutils - Deliverables
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