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bfd,opcodes: sparc: new opcode v9{c,d,e,v,m} architectures and bfd machine numbers.
[deliverable/binutils-gdb.git] / bfd / elf64-sh64.c
1 /* SuperH SH64-specific support for 64-bit ELF
2 Copyright (C) 2000-2016 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 *dynobj;
1436 bfd_vma *local_got_offsets;
1437 asection *sgot;
1438 asection *sgotplt;
1439 asection *splt;
1440 asection *sreloc;
1441 bfd_vma disp, dropped;
1442
1443 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1444 sym_hashes = elf_sym_hashes (input_bfd);
1445 dynobj = elf_hash_table (info)->dynobj;
1446 local_got_offsets = elf_local_got_offsets (input_bfd);
1447
1448 sgot = NULL;
1449 sgotplt = NULL;
1450 splt = NULL;
1451 sreloc = NULL;
1452
1453 rel = relocs;
1454 relend = relocs + input_section->reloc_count;
1455 for (; rel < relend; rel++)
1456 {
1457 int r_type;
1458 reloc_howto_type *howto;
1459 unsigned long r_symndx;
1460 Elf_Internal_Sym *sym;
1461 asection *sec;
1462 struct elf_link_hash_entry *h;
1463 bfd_vma relocation;
1464 bfd_vma addend = (bfd_vma)0;
1465 bfd_reloc_status_type r;
1466 int seen_stt_datalabel = 0;
1467
1468 r_symndx = ELF64_R_SYM (rel->r_info);
1469
1470 r_type = ELF64_R_TYPE (rel->r_info);
1471
1472 if (r_type == (int) R_SH_NONE)
1473 continue;
1474
1475 if (r_type < 0
1476 || r_type > R_SH_64_PCREL
1477 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
1478 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1479 || (r_type >= (int) R_SH_DIR8WPN
1480 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1481 || (r_type >= (int) R_SH_GNU_VTINHERIT
1482 && r_type <= (int) R_SH_PSHL)
1483 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
1484 && r_type <= R_SH_GOTPLT32)
1485 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
1486 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4))
1487 {
1488 bfd_set_error (bfd_error_bad_value);
1489 return FALSE;
1490 }
1491
1492 howto = sh_elf64_howto_table + r_type;
1493
1494 h = NULL;
1495 sym = NULL;
1496 sec = NULL;
1497 relocation = 0;
1498 if (r_symndx < symtab_hdr->sh_info)
1499 {
1500 sym = local_syms + r_symndx;
1501 sec = local_sections[r_symndx];
1502 relocation = ((sec->output_section->vma
1503 + sec->output_offset
1504 + sym->st_value)
1505 | ((sym->st_other & STO_SH5_ISA32) != 0));
1506
1507 /* A local symbol never has STO_SH5_ISA32, so we don't need
1508 datalabel processing here. Make sure this does not change
1509 without notice. */
1510 if ((sym->st_other & STO_SH5_ISA32) != 0)
1511 (*info->callbacks->reloc_dangerous)
1512 (info,
1513 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
1514 input_bfd, input_section, rel->r_offset);
1515
1516 if (sec != NULL && discarded_section (sec))
1517 /* Handled below. */
1518 ;
1519 else if (bfd_link_relocatable (info))
1520 {
1521 /* This is a relocatable link. We don't have to change
1522 anything, unless the reloc is against a section symbol,
1523 in which case we have to adjust according to where the
1524 section symbol winds up in the output section. */
1525 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1526 goto final_link_relocate;
1527
1528 continue;
1529 }
1530 else if (! howto->partial_inplace)
1531 {
1532 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1533 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0);
1534 }
1535 else if ((sec->flags & SEC_MERGE)
1536 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1537 {
1538 asection *msec;
1539
1540 if (howto->rightshift || howto->src_mask != 0xffffffff)
1541 {
1542 (*_bfd_error_handler)
1543 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
1544 input_bfd, input_section,
1545 (long) rel->r_offset, howto->name);
1546 return FALSE;
1547 }
1548
1549 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1550 msec = sec;
1551 addend =
1552 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1553 - relocation;
1554 addend += msec->output_section->vma + msec->output_offset;
1555 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1556 addend = 0;
1557 }
1558 }
1559 else
1560 {
1561 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1562
1563 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1564 while (h->root.type == bfd_link_hash_indirect
1565 || h->root.type == bfd_link_hash_warning)
1566 {
1567 /* If the reference passes a symbol marked with
1568 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1569 doesn't count. */
1570 seen_stt_datalabel |= h->type == STT_DATALABEL;
1571 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1572 }
1573
1574 if (h->root.type == bfd_link_hash_defined
1575 || h->root.type == bfd_link_hash_defweak)
1576 {
1577 sec = h->root.u.def.section;
1578 /* In these cases, we don't need the relocation value.
1579 We check specially because in some obscure cases
1580 sec->output_section will be NULL. */
1581 if (r_type == R_SH_GOTPC_LOW16
1582 || r_type == R_SH_GOTPC_MEDLOW16
1583 || r_type == R_SH_GOTPC_MEDHI16
1584 || r_type == R_SH_GOTPC_HI16
1585 || ((r_type == R_SH_PLT_LOW16
1586 || r_type == R_SH_PLT_MEDLOW16
1587 || r_type == R_SH_PLT_MEDHI16
1588 || r_type == R_SH_PLT_HI16)
1589 && h->plt.offset != (bfd_vma) -1)
1590 || ((r_type == R_SH_GOT_LOW16
1591 || r_type == R_SH_GOT_MEDLOW16
1592 || r_type == R_SH_GOT_MEDHI16
1593 || r_type == R_SH_GOT_HI16)
1594 && elf_hash_table (info)->dynamic_sections_created
1595 && (! bfd_link_pic (info)
1596 || (! info->symbolic && h->dynindx != -1)
1597 || !h->def_regular))
1598 /* The cases above are those in which relocation is
1599 overwritten in the switch block below. The cases
1600 below are those in which we must defer relocation
1601 to run-time, because we can't resolve absolute
1602 addresses when creating a shared library. */
1603 || (bfd_link_pic (info)
1604 && ((! info->symbolic && h->dynindx != -1)
1605 || !h->def_regular)
1606 && ((r_type == R_SH_64
1607 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1608 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1609 || r_type == R_SH_64_PCREL)
1610 && ((input_section->flags & SEC_ALLOC) != 0
1611 /* DWARF will emit R_SH_DIR32 relocations in its
1612 sections against symbols defined externally
1613 in shared libraries. We can't do anything
1614 with them here. */
1615 || (input_section->flags & SEC_DEBUGGING) != 0))
1616 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1617 sections because such sections are not SEC_ALLOC and
1618 thus ld.so will not process them. */
1619 || (sec->output_section == NULL
1620 && ((input_section->flags & SEC_DEBUGGING) != 0
1621 && h->def_dynamic)))
1622 ;
1623 else if (sec->output_section != NULL)
1624 relocation = ((h->root.u.def.value
1625 + sec->output_section->vma
1626 + sec->output_offset)
1627 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1628 symbol value, unless we've seen
1629 STT_DATALABEL on the way to it. */
1630 | ((h->other & STO_SH5_ISA32) != 0
1631 && ! seen_stt_datalabel));
1632 else if (!bfd_link_relocatable (info)
1633 && (_bfd_elf_section_offset (output_bfd, info,
1634 input_section,
1635 rel->r_offset)
1636 != (bfd_vma) -1))
1637 {
1638 (*_bfd_error_handler)
1639 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
1640 input_bfd,
1641 input_section,
1642 (long) rel->r_offset,
1643 howto->name,
1644 h->root.root.string);
1645 }
1646 }
1647 else if (h->root.type == bfd_link_hash_undefweak)
1648 ;
1649 else if (info->unresolved_syms_in_objects == RM_IGNORE
1650 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1651 ;
1652 else if (!bfd_link_relocatable (info))
1653 (*info->callbacks->undefined_symbol)
1654 (info, h->root.root.string, input_bfd,
1655 input_section, rel->r_offset,
1656 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1657 || ELF_ST_VISIBILITY (h->other)));
1658 }
1659
1660 if (sec != NULL && discarded_section (sec))
1661 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1662 rel, 1, relend, howto, 0, contents);
1663
1664 if (bfd_link_relocatable (info))
1665 continue;
1666
1667 disp = (relocation
1668 - input_section->output_section->vma
1669 - input_section->output_offset
1670 - rel->r_offset);
1671 dropped = 0;
1672 switch ((int)r_type)
1673 {
1674 case R_SH_PT_16: dropped = disp & 2; break;
1675 case R_SH_DIR10SW: dropped = disp & 1; break;
1676 case R_SH_DIR10SL: dropped = disp & 3; break;
1677 case R_SH_DIR10SQ: dropped = disp & 7; break;
1678 }
1679 if (dropped != 0)
1680 {
1681 (*_bfd_error_handler)
1682 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
1683 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation);
1684 bfd_set_error (bfd_error_bad_value);
1685 return FALSE;
1686 }
1687 switch ((int)r_type)
1688 {
1689 case R_SH_64:
1690 case R_SH_64_PCREL:
1691 if (bfd_link_pic (info)
1692 && (input_section->flags & SEC_ALLOC) != 0
1693 && (r_type != R_SH_64_PCREL
1694 || (h != NULL
1695 && h->dynindx != -1
1696 && (! info->symbolic
1697 || !h->def_regular))))
1698 {
1699 Elf_Internal_Rela outrel;
1700 bfd_byte *loc;
1701 bfd_boolean skip, relocate;
1702
1703 /* When generating a shared object, these relocations
1704 are copied into the output file to be resolved at run
1705 time. */
1706
1707 if (sreloc == NULL)
1708 {
1709 sreloc = _bfd_elf_get_dynamic_reloc_section
1710 (input_bfd, input_section, /*rela?*/ TRUE);
1711 if (sreloc == NULL)
1712 return FALSE;
1713 }
1714
1715 skip = FALSE;
1716 relocate = FALSE;
1717
1718 outrel.r_offset
1719 = _bfd_elf_section_offset (output_bfd, info,
1720 input_section, rel->r_offset);
1721
1722 if (outrel.r_offset == (bfd_vma) -1)
1723 skip = TRUE;
1724 else if (outrel.r_offset == (bfd_vma) -2)
1725 skip = TRUE, relocate = TRUE;
1726
1727 outrel.r_offset += (input_section->output_section->vma
1728 + input_section->output_offset);
1729
1730 if (skip)
1731 memset (&outrel, 0, sizeof outrel);
1732 else if (r_type == R_SH_64_PCREL)
1733 {
1734 BFD_ASSERT (h != NULL && h->dynindx != -1);
1735 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1736 outrel.r_addend = rel->r_addend;
1737 }
1738 else
1739 {
1740 /* h->dynindx may be -1 if this symbol was marked to
1741 become local. */
1742 if (h == NULL
1743 || ((info->symbolic || h->dynindx == -1)
1744 && h->def_regular))
1745 {
1746 relocate = TRUE;
1747 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1748 outrel.r_addend = relocation + rel->r_addend;
1749 }
1750 else
1751 {
1752 BFD_ASSERT (h->dynindx != -1);
1753 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1754 outrel.r_addend = relocation + rel->r_addend;
1755 }
1756 }
1757
1758 loc = sreloc->contents;
1759 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1760 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1761
1762 /* If this reloc is against an external symbol, we do
1763 not want to fiddle with the addend. Otherwise, we
1764 need to include the symbol value so that it becomes
1765 an addend for the dynamic reloc. */
1766 if (! relocate)
1767 continue;
1768 }
1769 else if (r_type == R_SH_64)
1770 addend = rel->r_addend;
1771 goto final_link_relocate;
1772
1773 case R_SH_GOTPLT_LOW16:
1774 case R_SH_GOTPLT_MEDLOW16:
1775 case R_SH_GOTPLT_MEDHI16:
1776 case R_SH_GOTPLT_HI16:
1777 case R_SH_GOTPLT10BY4:
1778 case R_SH_GOTPLT10BY8:
1779 /* Relocation is to the entry for this symbol in the
1780 procedure linkage table. */
1781
1782 if (h == NULL
1783 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1784 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1785 || ! bfd_link_pic (info)
1786 || info->symbolic
1787 || h->dynindx == -1
1788 || h->plt.offset == (bfd_vma) -1
1789 || h->got.offset != (bfd_vma) -1)
1790 goto force_got;
1791
1792 /* Relocation is to the entry for this symbol in the global
1793 offset table extension for the procedure linkage table. */
1794 if (sgotplt == NULL)
1795 {
1796 sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
1797 BFD_ASSERT (sgotplt != NULL);
1798 }
1799
1800 relocation = (sgotplt->output_offset
1801 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1802 - 1 + 3) * 8));
1803
1804 relocation -= GOT_BIAS;
1805
1806 goto final_link_relocate;
1807
1808 force_got:
1809 case R_SH_GOT_LOW16:
1810 case R_SH_GOT_MEDLOW16:
1811 case R_SH_GOT_MEDHI16:
1812 case R_SH_GOT_HI16:
1813 case R_SH_GOT10BY4:
1814 case R_SH_GOT10BY8:
1815 /* Relocation is to the entry for this symbol in the global
1816 offset table. */
1817 if (sgot == NULL)
1818 {
1819 sgot = bfd_get_linker_section (dynobj, ".got");
1820 BFD_ASSERT (sgot != NULL);
1821 }
1822
1823 if (h != NULL)
1824 {
1825 bfd_vma off;
1826
1827 off = h->got.offset;
1828 if (seen_stt_datalabel)
1829 {
1830 struct elf_sh64_link_hash_entry *hsh;
1831
1832 hsh = (struct elf_sh64_link_hash_entry *)h;
1833 off = hsh->datalabel_got_offset;
1834 }
1835 BFD_ASSERT (off != (bfd_vma) -1);
1836
1837 if (! elf_hash_table (info)->dynamic_sections_created
1838 || (bfd_link_pic (info)
1839 && (info->symbolic || h->dynindx == -1
1840 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1841 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1842 && h->def_regular))
1843 {
1844 /* This is actually a static link, or it is a
1845 -Bsymbolic link and the symbol is defined
1846 locally, or the symbol was forced to be local
1847 because of a version file. We must initialize
1848 this entry in the global offset table. Since the
1849 offset must always be a multiple of 4, we use the
1850 least significant bit to record whether we have
1851 initialized it already.
1852
1853 When doing a dynamic link, we create a .rela.got
1854 relocation entry to initialize the value. This
1855 is done in the finish_dynamic_symbol routine. */
1856 if ((off & 1) != 0)
1857 off &= ~1;
1858 else
1859 {
1860 bfd_put_64 (output_bfd, relocation,
1861 sgot->contents + off);
1862 if (seen_stt_datalabel)
1863 {
1864 struct elf_sh64_link_hash_entry *hsh;
1865
1866 hsh = (struct elf_sh64_link_hash_entry *)h;
1867 hsh->datalabel_got_offset |= 1;
1868 }
1869 else
1870 h->got.offset |= 1;
1871 }
1872 }
1873
1874 relocation = sgot->output_offset + off;
1875 }
1876 else
1877 {
1878 bfd_vma off;
1879
1880 if (rel->r_addend)
1881 {
1882 BFD_ASSERT (local_got_offsets != NULL
1883 && (local_got_offsets[symtab_hdr->sh_info
1884 + r_symndx]
1885 != (bfd_vma) -1));
1886
1887 off = local_got_offsets[symtab_hdr->sh_info
1888 + r_symndx];
1889 }
1890 else
1891 {
1892 BFD_ASSERT (local_got_offsets != NULL
1893 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1894
1895 off = local_got_offsets[r_symndx];
1896 }
1897
1898 /* The offset must always be a multiple of 8. We use
1899 the least significant bit to record whether we have
1900 already generated the necessary reloc. */
1901 if ((off & 1) != 0)
1902 off &= ~1;
1903 else
1904 {
1905 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1906
1907 if (bfd_link_pic (info))
1908 {
1909 asection *s;
1910 Elf_Internal_Rela outrel;
1911 bfd_byte *loc;
1912
1913 s = bfd_get_linker_section (dynobj, ".rela.got");
1914 BFD_ASSERT (s != NULL);
1915
1916 outrel.r_offset = (sgot->output_section->vma
1917 + sgot->output_offset
1918 + off);
1919 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1920 outrel.r_addend = relocation;
1921 loc = s->contents;
1922 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1923 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1924 }
1925
1926 if (rel->r_addend)
1927 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1928 else
1929 local_got_offsets[r_symndx] |= 1;
1930 }
1931
1932 relocation = sgot->output_offset + off;
1933 }
1934
1935 relocation -= GOT_BIAS;
1936
1937 goto final_link_relocate;
1938
1939 case R_SH_GOTOFF_LOW16:
1940 case R_SH_GOTOFF_MEDLOW16:
1941 case R_SH_GOTOFF_MEDHI16:
1942 case R_SH_GOTOFF_HI16:
1943 /* Relocation is relative to the start of the global offset
1944 table. */
1945
1946 if (sgot == NULL)
1947 {
1948 sgot = bfd_get_linker_section (dynobj, ".got");
1949 BFD_ASSERT (sgot != NULL);
1950 }
1951
1952 /* Note that sgot->output_offset is not involved in this
1953 calculation. We always want the start of .got. If we
1954 defined _GLOBAL_OFFSET_TABLE in a different way, as is
1955 permitted by the ABI, we might have to change this
1956 calculation. */
1957 relocation -= sgot->output_section->vma;
1958
1959 relocation -= GOT_BIAS;
1960
1961 addend = rel->r_addend;
1962
1963 goto final_link_relocate;
1964
1965 case R_SH_GOTPC_LOW16:
1966 case R_SH_GOTPC_MEDLOW16:
1967 case R_SH_GOTPC_MEDHI16:
1968 case R_SH_GOTPC_HI16:
1969 /* Use global offset table as symbol value. */
1970
1971 if (sgot == NULL)
1972 {
1973 sgot = bfd_get_linker_section (dynobj, ".got");
1974 BFD_ASSERT (sgot != NULL);
1975 }
1976
1977 relocation = sgot->output_section->vma;
1978
1979 relocation += GOT_BIAS;
1980
1981 addend = rel->r_addend;
1982
1983 goto final_link_relocate;
1984
1985 case R_SH_PLT_LOW16:
1986 case R_SH_PLT_MEDLOW16:
1987 case R_SH_PLT_MEDHI16:
1988 case R_SH_PLT_HI16:
1989 /* Relocation is to the entry for this symbol in the
1990 procedure linkage table. */
1991
1992 /* Resolve a PLT reloc against a local symbol directly,
1993 without using the procedure linkage table. */
1994 if (h == NULL)
1995 goto final_link_relocate;
1996
1997 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1998 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1999 goto final_link_relocate;
2000
2001 if (h->plt.offset == (bfd_vma) -1)
2002 {
2003 /* We didn't make a PLT entry for this symbol. This
2004 happens when statically linking PIC code, or when
2005 using -Bsymbolic. */
2006 goto final_link_relocate;
2007 }
2008
2009 if (splt == NULL)
2010 {
2011 splt = bfd_get_linker_section (dynobj, ".plt");
2012 BFD_ASSERT (splt != NULL);
2013 }
2014
2015 relocation = (splt->output_section->vma
2016 + splt->output_offset
2017 + h->plt.offset);
2018 relocation++;
2019
2020 addend = rel->r_addend;
2021
2022 goto final_link_relocate;
2023
2024 case R_SH_DIR32:
2025 case R_SH_SHMEDIA_CODE:
2026 case R_SH_PT_16:
2027 case R_SH_DIR5U:
2028 case R_SH_DIR6S:
2029 case R_SH_DIR6U:
2030 case R_SH_DIR10S:
2031 case R_SH_DIR10SW:
2032 case R_SH_DIR10SL:
2033 case R_SH_DIR10SQ:
2034 case R_SH_IMMS16:
2035 case R_SH_IMMU16:
2036 case R_SH_IMM_LOW16:
2037 case R_SH_IMM_LOW16_PCREL:
2038 case R_SH_IMM_MEDLOW16:
2039 case R_SH_IMM_MEDLOW16_PCREL:
2040 case R_SH_IMM_MEDHI16:
2041 case R_SH_IMM_MEDHI16_PCREL:
2042 case R_SH_IMM_HI16:
2043 case R_SH_IMM_HI16_PCREL:
2044 addend = rel->r_addend;
2045 /* Fall through. */
2046 case R_SH_REL32:
2047 final_link_relocate:
2048 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2049 contents, rel->r_offset,
2050 relocation, addend);
2051 break;
2052
2053 default:
2054 bfd_set_error (bfd_error_bad_value);
2055 return FALSE;
2056
2057 }
2058
2059 if (r != bfd_reloc_ok)
2060 {
2061 switch (r)
2062 {
2063 default:
2064 case bfd_reloc_outofrange:
2065 abort ();
2066 case bfd_reloc_overflow:
2067 {
2068 const char *name;
2069
2070 if (h != NULL)
2071 name = NULL;
2072 else
2073 {
2074 name = (bfd_elf_string_from_elf_section
2075 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2076 if (name == NULL)
2077 return FALSE;
2078 if (*name == '\0')
2079 name = bfd_section_name (input_bfd, sec);
2080 }
2081 (*info->callbacks->reloc_overflow)
2082 (info, (h ? &h->root : NULL), name, howto->name,
2083 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2084 }
2085 break;
2086 }
2087 }
2088 }
2089
2090 return TRUE;
2091 }
2092
2093 /* This is a version of bfd_generic_get_relocated_section_contents
2094 that uses sh_elf64_relocate_section.
2095
2096 See sh_elf_relocate_section in elf32-sh.c for the original. */
2097
2098 static bfd_byte *
2099 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2100 struct bfd_link_info *link_info,
2101 struct bfd_link_order *link_order,
2102 bfd_byte *data,
2103 bfd_boolean relocatable,
2104 asymbol **symbols)
2105 {
2106 Elf_Internal_Shdr *symtab_hdr;
2107 asection *input_section = link_order->u.indirect.section;
2108 bfd *input_bfd = input_section->owner;
2109 asection **sections = NULL;
2110 Elf_Internal_Rela *internal_relocs = NULL;
2111 Elf_Internal_Sym *isymbuf = NULL;
2112
2113 /* We only need to handle the case of relaxing, or of having a
2114 particular set of section contents, specially. */
2115 if (relocatable
2116 || elf_section_data (input_section)->this_hdr.contents == NULL)
2117 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2118 link_order, data,
2119 relocatable,
2120 symbols);
2121
2122 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2123
2124 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2125 input_section->size);
2126
2127 if ((input_section->flags & SEC_RELOC) != 0
2128 && input_section->reloc_count > 0)
2129 {
2130 Elf_Internal_Sym *isymp;
2131 Elf_Internal_Sym *isymend;
2132 asection **secpp;
2133
2134 /* Read this BFD's local symbols. */
2135 if (symtab_hdr->sh_info != 0)
2136 {
2137 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2138 if (isymbuf == NULL)
2139 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2140 symtab_hdr->sh_info, 0,
2141 NULL, NULL, NULL);
2142 if (isymbuf == NULL)
2143 goto error_return;
2144 }
2145
2146 internal_relocs = (_bfd_elf_link_read_relocs
2147 (input_bfd, input_section, NULL,
2148 (Elf_Internal_Rela *) NULL, FALSE));
2149 if (internal_relocs == NULL)
2150 goto error_return;
2151
2152 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2153 * sizeof (asection *));
2154 if (sections == NULL && symtab_hdr->sh_info > 0)
2155 goto error_return;
2156
2157 secpp = sections;
2158 isymend = isymbuf + symtab_hdr->sh_info;
2159 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2160 {
2161 asection *isec;
2162
2163 if (isymp->st_shndx == SHN_UNDEF)
2164 isec = bfd_und_section_ptr;
2165 else if (isymp->st_shndx == SHN_ABS)
2166 isec = bfd_abs_section_ptr;
2167 else if (isymp->st_shndx == SHN_COMMON)
2168 isec = bfd_com_section_ptr;
2169 else
2170 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2171
2172 *secpp = isec;
2173 }
2174
2175 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2176 input_section, data, internal_relocs,
2177 isymbuf, sections))
2178 goto error_return;
2179
2180 if (sections != NULL)
2181 free (sections);
2182 if (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 }
2188
2189 return data;
2190
2191 error_return:
2192 if (sections != NULL)
2193 free (sections);
2194 if (internal_relocs != NULL
2195 && internal_relocs != elf_section_data (input_section)->relocs)
2196 free (internal_relocs);
2197 if (isymbuf != NULL
2198 && (unsigned char *) isymbuf != symtab_hdr->contents)
2199 free (isymbuf);
2200 return NULL;
2201 }
2202
2203 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2204
2205 static bfd_boolean
2206 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2207 Elf_Internal_Shdr *elf_section_hdr,
2208 asection *asect)
2209 {
2210 /* Code sections can only contain SH64 code, so mark them as such. */
2211 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2212 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2213
2214 return TRUE;
2215 }
2216
2217 static bfd_boolean
2218 sh_elf64_set_mach_from_flags (bfd *abfd)
2219 {
2220 flagword flags = elf_elfheader (abfd)->e_flags;
2221
2222 switch (flags & EF_SH_MACH_MASK)
2223 {
2224 case EF_SH5:
2225 /* Just one, but keep the switch construct to make additions easy. */
2226 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2227 break;
2228
2229 default:
2230 bfd_set_error (bfd_error_wrong_format);
2231 return FALSE;
2232 }
2233 return TRUE;
2234 }
2235
2236 /* Function to keep SH64 specific file flags.
2237
2238 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2239
2240 static bfd_boolean
2241 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2242 {
2243 BFD_ASSERT (! elf_flags_init (abfd)
2244 || elf_elfheader (abfd)->e_flags == flags);
2245
2246 elf_elfheader (abfd)->e_flags = flags;
2247 elf_flags_init (abfd) = TRUE;
2248 return sh_elf64_set_mach_from_flags (abfd);
2249 }
2250
2251 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2252 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2253
2254 static bfd_boolean
2255 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2256 {
2257 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2258 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2259 return TRUE;
2260
2261 /* Copy object attributes. */
2262 _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2263
2264 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2265 }
2266
2267 static bfd_boolean
2268 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2269 {
2270 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2271 }
2272
2273 static bfd_boolean
2274 sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd)
2275 {
2276 flagword old_flags, new_flags;
2277
2278 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
2279 return FALSE;
2280
2281 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2282 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2283 return TRUE;
2284
2285 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2286 {
2287 const char *msg;
2288
2289 if (bfd_get_arch_size (ibfd) == 32
2290 && bfd_get_arch_size (obfd) == 64)
2291 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
2292 else if (bfd_get_arch_size (ibfd) == 64
2293 && bfd_get_arch_size (obfd) == 32)
2294 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
2295 else
2296 msg = _("%s: object size does not match that of target %s");
2297
2298 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
2299 bfd_get_filename (obfd));
2300 bfd_set_error (bfd_error_wrong_format);
2301 return FALSE;
2302 }
2303
2304 old_flags = elf_elfheader (obfd)->e_flags;
2305 new_flags = elf_elfheader (ibfd)->e_flags;
2306 if (! elf_flags_init (obfd))
2307 {
2308 /* This happens when ld starts out with a 'blank' output file. */
2309 elf_flags_init (obfd) = TRUE;
2310 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2311 }
2312 /* We don't allow linking in anything else than SH64 code, and since
2313 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2314 here as things change. */
2315 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2316 {
2317 (*_bfd_error_handler)
2318 ("%s: does not use the SH64 64-bit ABI as previous modules do",
2319 bfd_get_filename (ibfd));
2320 bfd_set_error (bfd_error_bad_value);
2321 return FALSE;
2322 }
2323
2324 sh_elf64_copy_private_data_internal (ibfd, obfd);
2325
2326 /* I can't think of anything sane other than old_flags being EF_SH5 and
2327 that we need to preserve that. */
2328 elf_elfheader (obfd)->e_flags = old_flags;
2329
2330 return sh_elf64_set_mach_from_flags (obfd);
2331 }
2332
2333 /* Return the section that should be marked against GC for a given
2334 relocation. */
2335
2336 static asection *
2337 sh_elf64_gc_mark_hook (asection *sec,
2338 struct bfd_link_info *info,
2339 Elf_Internal_Rela *rel,
2340 struct elf_link_hash_entry *h,
2341 Elf_Internal_Sym *sym)
2342 {
2343 if (h != NULL)
2344 switch (ELF64_R_TYPE (rel->r_info))
2345 {
2346 case R_SH_GNU_VTINHERIT:
2347 case R_SH_GNU_VTENTRY:
2348 return NULL;
2349 }
2350
2351 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2352 }
2353
2354 /* Look through the relocs for a section during the first phase.
2355 Since we don't do .gots or .plts, we just need to consider the
2356 virtual table relocs for gc. */
2357
2358 static bfd_boolean
2359 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2360 asection *sec, const Elf_Internal_Rela *relocs)
2361 {
2362 Elf_Internal_Shdr *symtab_hdr;
2363 struct elf_link_hash_entry **sym_hashes;
2364 const Elf_Internal_Rela *rel;
2365 const Elf_Internal_Rela *rel_end;
2366 bfd *dynobj;
2367 bfd_vma *local_got_offsets;
2368 asection *sgot;
2369 asection *srelgot;
2370 asection *sreloc;
2371
2372 sgot = NULL;
2373 srelgot = NULL;
2374 sreloc = NULL;
2375
2376 if (bfd_link_relocatable (info))
2377 return TRUE;
2378
2379 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2380 sym_hashes = elf_sym_hashes (abfd);
2381
2382 dynobj = elf_hash_table (info)->dynobj;
2383 local_got_offsets = elf_local_got_offsets (abfd);
2384
2385 rel_end = relocs + sec->reloc_count;
2386 for (rel = relocs; rel < rel_end; rel++)
2387 {
2388 struct elf_link_hash_entry *h;
2389 unsigned long r_symndx;
2390
2391 r_symndx = ELF64_R_SYM (rel->r_info);
2392 if (r_symndx < symtab_hdr->sh_info)
2393 h = NULL;
2394 else
2395 {
2396 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2397 while (h->root.type == bfd_link_hash_indirect
2398 || h->root.type == bfd_link_hash_warning)
2399 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2400
2401 /* PR15323, ref flags aren't set for references in the same
2402 object. */
2403 h->root.non_ir_ref = 1;
2404 }
2405
2406 /* Some relocs require a global offset table. */
2407 if (dynobj == NULL)
2408 {
2409 switch (ELF64_R_TYPE (rel->r_info))
2410 {
2411 case R_SH_GOTPLT_LOW16:
2412 case R_SH_GOTPLT_MEDLOW16:
2413 case R_SH_GOTPLT_MEDHI16:
2414 case R_SH_GOTPLT_HI16:
2415 case R_SH_GOTPLT10BY4:
2416 case R_SH_GOTPLT10BY8:
2417 case R_SH_GOT_LOW16:
2418 case R_SH_GOT_MEDLOW16:
2419 case R_SH_GOT_MEDHI16:
2420 case R_SH_GOT_HI16:
2421 case R_SH_GOT10BY4:
2422 case R_SH_GOT10BY8:
2423 case R_SH_GOTOFF_LOW16:
2424 case R_SH_GOTOFF_MEDLOW16:
2425 case R_SH_GOTOFF_MEDHI16:
2426 case R_SH_GOTOFF_HI16:
2427 case R_SH_GOTPC_LOW16:
2428 case R_SH_GOTPC_MEDLOW16:
2429 case R_SH_GOTPC_MEDHI16:
2430 case R_SH_GOTPC_HI16:
2431 elf_hash_table (info)->dynobj = dynobj = abfd;
2432 if (! _bfd_elf_create_got_section (dynobj, info))
2433 return FALSE;
2434 break;
2435
2436 default:
2437 break;
2438 }
2439 }
2440
2441 switch (ELF64_R_TYPE (rel->r_info))
2442 {
2443 /* This relocation describes the C++ object vtable hierarchy.
2444 Reconstruct it for later use during GC. */
2445 case R_SH_GNU_VTINHERIT:
2446 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2447 return FALSE;
2448 break;
2449
2450 /* This relocation describes which C++ vtable entries are actually
2451 used. Record for later use during GC. */
2452 case R_SH_GNU_VTENTRY:
2453 BFD_ASSERT (h != NULL);
2454 if (h != NULL
2455 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2456 return FALSE;
2457 break;
2458
2459 force_got:
2460 case R_SH_GOT_LOW16:
2461 case R_SH_GOT_MEDLOW16:
2462 case R_SH_GOT_MEDHI16:
2463 case R_SH_GOT_HI16:
2464 case R_SH_GOT10BY4:
2465 case R_SH_GOT10BY8:
2466 /* This symbol requires a global offset table entry. */
2467
2468 if (sgot == NULL)
2469 {
2470 sgot = bfd_get_linker_section (dynobj, ".got");
2471 BFD_ASSERT (sgot != NULL);
2472 }
2473
2474 if (srelgot == NULL
2475 && (h != NULL || bfd_link_pic (info)))
2476 {
2477 srelgot = bfd_get_linker_section (dynobj, ".rela.got");
2478 if (srelgot == NULL)
2479 {
2480 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
2481 | SEC_IN_MEMORY | SEC_LINKER_CREATED
2482 | SEC_READONLY);
2483 srelgot = bfd_make_section_anyway_with_flags (dynobj,
2484 ".rela.got",
2485 flags);
2486 if (srelgot == NULL
2487 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
2488 return FALSE;
2489 }
2490 }
2491
2492 if (h != NULL)
2493 {
2494 if (h->type == STT_DATALABEL)
2495 {
2496 struct elf_sh64_link_hash_entry *hsh;
2497
2498 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2499 hsh = (struct elf_sh64_link_hash_entry *)h;
2500 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2501 break;
2502
2503 hsh->datalabel_got_offset = sgot->size;
2504 }
2505 else
2506 {
2507 if (h->got.offset != (bfd_vma) -1)
2508 {
2509 /* We have already allocated space in the .got. */
2510 break;
2511 }
2512 h->got.offset = sgot->size;
2513 }
2514
2515 /* Make sure this symbol is output as a dynamic symbol. */
2516 if (h->dynindx == -1)
2517 {
2518 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2519 return FALSE;
2520 }
2521
2522 srelgot->size += sizeof (Elf64_External_Rela);
2523 }
2524 else
2525 {
2526 /* This is a global offset table entry for a local
2527 symbol. */
2528 if (local_got_offsets == NULL)
2529 {
2530 size_t size;
2531 register unsigned int i;
2532
2533 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2534 /* Reserve space for both the datalabel and
2535 codelabel local GOT offsets. */
2536 size *= 2;
2537 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2538 if (local_got_offsets == NULL)
2539 return FALSE;
2540 elf_local_got_offsets (abfd) = local_got_offsets;
2541 for (i = 0; i < symtab_hdr->sh_info; i++)
2542 local_got_offsets[i] = (bfd_vma) -1;
2543 for (; i < 2 * symtab_hdr->sh_info; i++)
2544 local_got_offsets[i] = (bfd_vma) -1;
2545 }
2546 if ((rel->r_addend & 1) != 0)
2547 {
2548 if (local_got_offsets[symtab_hdr->sh_info
2549 + r_symndx] != (bfd_vma) -1)
2550 {
2551 /* We have already allocated space in the .got. */
2552 break;
2553 }
2554 local_got_offsets[symtab_hdr->sh_info
2555 + r_symndx] = sgot->size;
2556 }
2557 else
2558 {
2559 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2560 {
2561 /* We have already allocated space in the .got. */
2562 break;
2563 }
2564 local_got_offsets[r_symndx] = sgot->size;
2565 }
2566
2567 if (bfd_link_pic (info))
2568 {
2569 /* If we are generating a shared object, we need to
2570 output a R_SH_RELATIVE reloc so that the dynamic
2571 linker can adjust this GOT entry. */
2572 srelgot->size += sizeof (Elf64_External_Rela);
2573 }
2574 }
2575
2576 sgot->size += 8;
2577
2578 break;
2579
2580 case R_SH_GOTPLT_LOW16:
2581 case R_SH_GOTPLT_MEDLOW16:
2582 case R_SH_GOTPLT_MEDHI16:
2583 case R_SH_GOTPLT_HI16:
2584 case R_SH_GOTPLT10BY4:
2585 case R_SH_GOTPLT10BY8:
2586 /* If this is a local symbol, we resolve it directly without
2587 creating a procedure linkage table entry. */
2588
2589 if (h == NULL
2590 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2591 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2592 || ! bfd_link_pic (info)
2593 || info->symbolic
2594 || h->dynindx == -1
2595 || h->got.offset != (bfd_vma) -1)
2596 goto force_got;
2597
2598 /* Make sure this symbol is output as a dynamic symbol. */
2599 if (h->dynindx == -1)
2600 {
2601 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2602 return FALSE;
2603 }
2604
2605 h->needs_plt = 1;
2606
2607 break;
2608
2609 case R_SH_PLT_LOW16:
2610 case R_SH_PLT_MEDLOW16:
2611 case R_SH_PLT_MEDHI16:
2612 case R_SH_PLT_HI16:
2613 /* This symbol requires a procedure linkage table entry. We
2614 actually build the entry in adjust_dynamic_symbol,
2615 because this might be a case of linking PIC code which is
2616 never referenced by a dynamic object, in which case we
2617 don't need to generate a procedure linkage table entry
2618 after all. */
2619
2620 /* If this is a local symbol, we resolve it directly without
2621 creating a procedure linkage table entry. */
2622 if (h == NULL)
2623 continue;
2624
2625 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2626 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2627 break;
2628
2629 h->needs_plt = 1;
2630
2631 break;
2632
2633 case R_SH_64:
2634 case R_SH_64_PCREL:
2635 if (h != NULL)
2636 h->non_got_ref = 1;
2637
2638 /* If we are creating a shared library, and this is a reloc
2639 against a global symbol, or a non PC relative reloc
2640 against a local symbol, then we need to copy the reloc
2641 into the shared library. However, if we are linking with
2642 -Bsymbolic, we do not need to copy a reloc against a
2643 global symbol which is defined in an object we are
2644 including in the link (i.e., DEF_REGULAR is set). At
2645 this point we have not seen all the input files, so it is
2646 possible that DEF_REGULAR is not set now but will be set
2647 later (it is never cleared). We account for that
2648 possibility below by storing information in the
2649 pcrel_relocs_copied field of the hash table entry. */
2650 if (bfd_link_pic (info)
2651 && (sec->flags & SEC_ALLOC) != 0
2652 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2653 || (h != NULL
2654 && (! info->symbolic
2655 || !h->def_regular))))
2656 {
2657 /* When creating a shared object, we must copy these
2658 reloc types into the output file. We create a reloc
2659 section in dynobj and make room for this reloc. */
2660 if (sreloc == NULL)
2661 {
2662 sreloc = _bfd_elf_make_dynamic_reloc_section
2663 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
2664
2665 if (sreloc == NULL)
2666 return FALSE;
2667 }
2668
2669 sreloc->size += sizeof (Elf64_External_Rela);
2670
2671 /* If we are linking with -Bsymbolic, and this is a
2672 global symbol, we count the number of PC relative
2673 relocations we have entered for this symbol, so that
2674 we can discard them again if the symbol is later
2675 defined by a regular object. Note that this function
2676 is only called if we are using an elf_sh linker
2677 hash table, which means that h is really a pointer to
2678 an elf_sh_link_hash_entry. */
2679 if (h != NULL && info->symbolic
2680 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2681 {
2682 struct elf_sh64_link_hash_entry *eh;
2683 struct elf_sh64_pcrel_relocs_copied *p;
2684
2685 eh = (struct elf_sh64_link_hash_entry *) h;
2686
2687 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2688 if (p->section == sreloc)
2689 break;
2690
2691 if (p == NULL)
2692 {
2693 p = ((struct elf_sh64_pcrel_relocs_copied *)
2694 bfd_alloc (dynobj, sizeof *p));
2695 if (p == NULL)
2696 return FALSE;
2697 p->next = eh->pcrel_relocs_copied;
2698 eh->pcrel_relocs_copied = p;
2699 p->section = sreloc;
2700 p->count = 0;
2701 }
2702
2703 ++p->count;
2704 }
2705 }
2706
2707 break;
2708 }
2709 }
2710
2711 return TRUE;
2712 }
2713
2714 static int
2715 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2716 {
2717 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2718 return STT_DATALABEL;
2719
2720 return type;
2721 }
2722
2723 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2724 Either file can presumably exist without the other, but do not differ
2725 in elf-size-ness. How to share?
2726
2727 Hook called by the linker routine which adds symbols from an object
2728 file. We must make indirect symbols for undefined symbols marked with
2729 STT_DATALABEL, so relocations passing them will pick up that attribute
2730 and neutralize STO_SH5_ISA32 found on the symbol definition.
2731
2732 There is a problem, though: We want to fill in the hash-table entry for
2733 this symbol and signal to the caller that no further processing is
2734 needed. But we don't have the index for this hash-table entry. We
2735 rely here on that the current entry is the first hash-entry with NULL,
2736 which seems brittle. Also, iterating over the hash-table to find that
2737 entry is a linear operation on the number of symbols in this input
2738 file, and this function should take constant time, so that's not good
2739 too. Only comfort is that DataLabel references should only be found in
2740 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2741 into adding an option to elf_add_symbol_hook (preferably) for the index
2742 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2743 (not so good). */
2744
2745 static bfd_boolean
2746 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2747 Elf_Internal_Sym *sym, const char **namep,
2748 flagword *flagsp ATTRIBUTE_UNUSED,
2749 asection **secp, bfd_vma *valp)
2750 {
2751 /* We want to do this for relocatable as well as final linking. */
2752 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2753 && is_elf_hash_table (info->hash))
2754 {
2755 struct elf_link_hash_entry *h;
2756
2757 /* For relocatable links, we register the DataLabel sym in its own
2758 right, and tweak the name when it's output. Otherwise, we make
2759 an indirect symbol of it. */
2760 flagword flags
2761 = bfd_link_relocatable (info) || info->emitrelocations
2762 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2763
2764 char *dl_name
2765 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2766 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2767
2768 BFD_ASSERT (sym_hash != NULL);
2769
2770 /* Allocation may fail. */
2771 if (dl_name == NULL)
2772 return FALSE;
2773
2774 strcpy (dl_name, *namep);
2775 strcat (dl_name, DATALABEL_SUFFIX);
2776
2777 h = (struct elf_link_hash_entry *)
2778 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2779
2780 if (h == NULL)
2781 {
2782 /* No previous datalabel symbol. Make one. */
2783 struct bfd_link_hash_entry *bh = NULL;
2784 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2785
2786 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2787 flags, *secp, *valp,
2788 *namep, FALSE,
2789 bed->collect, &bh))
2790 {
2791 free (dl_name);
2792 return FALSE;
2793 }
2794
2795 h = (struct elf_link_hash_entry *) bh;
2796 h->non_elf = 0;
2797 h->type = STT_DATALABEL;
2798 }
2799 else
2800 /* If a new symbol was created, it holds the allocated name.
2801 Otherwise, we don't need it anymore and should deallocate it. */
2802 free (dl_name);
2803
2804 if (h->type != STT_DATALABEL
2805 || ((bfd_link_relocatable (info) || info->emitrelocations)
2806 && h->root.type != bfd_link_hash_undefined)
2807 || (! bfd_link_relocatable (info) && !info->emitrelocations
2808 && h->root.type != bfd_link_hash_indirect))
2809 {
2810 /* Make sure we don't get confused on invalid input. */
2811 (*_bfd_error_handler)
2812 (_("%s: encountered datalabel symbol in input"),
2813 bfd_get_filename (abfd));
2814 bfd_set_error (bfd_error_bad_value);
2815 return FALSE;
2816 }
2817
2818 /* Now find the hash-table slot for this entry and fill it in. */
2819 while (*sym_hash != NULL)
2820 sym_hash++;
2821 *sym_hash = h;
2822
2823 /* Signal to caller to skip this symbol - we've handled it. */
2824 *namep = NULL;
2825 }
2826
2827 return TRUE;
2828 }
2829
2830 /* This hook function is called before the linker writes out a global
2831 symbol. For relocatable links, DataLabel symbols will be present in
2832 linker output. We cut off the special suffix on those symbols, so the
2833 right name appears in the output.
2834
2835 When linking and emitting relocations, there can appear global symbols
2836 that are not referenced by relocs, but rather only implicitly through
2837 DataLabel references, a relation that is not visible to the linker.
2838 Since no stripping of global symbols in done when doing such linking,
2839 we don't need to look up and make sure to emit the main symbol for each
2840 DataLabel symbol. */
2841
2842 static int
2843 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2844 const char *cname,
2845 Elf_Internal_Sym *sym,
2846 asection *input_sec ATTRIBUTE_UNUSED,
2847 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2848 {
2849 char *name = (char *) cname;
2850
2851 if (bfd_link_relocatable (info) || info->emitrelocations)
2852 {
2853 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2854 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2855 }
2856
2857 return 1;
2858 }
2859
2860 /* Set bit 0 on the entry address; it always points to SHmedia code. This
2861 is mostly for symmetry with the 32-bit format, where code can be
2862 SHcompact and we need to make a distinction to make sure execution
2863 starts in the right ISA mode. It is also convenient for a loader,
2864 which would otherwise have to set this bit when loading a TR register
2865 before jumping to the program entry. */
2866
2867 static void
2868 sh64_elf64_final_write_processing (bfd *abfd,
2869 bfd_boolean linker ATTRIBUTE_UNUSED)
2870 {
2871 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
2872 numerically, but we currently lack the infrastructure to recognize
2873 that: The entry symbol, and info whether it is numeric or a symbol
2874 name is kept private in the linker. */
2875 if (elf_elfheader (abfd)->e_type == ET_EXEC)
2876 elf_elfheader (abfd)->e_entry |= 1;
2877 }
2878
2879 /* First entry in an absolute procedure linkage table look like this. */
2880
2881 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
2882 {
2883 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
2884 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
2885 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
2886 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2887 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2888 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2889 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2890 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2891 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2892 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2893 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2894 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2895 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2896 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2897 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2898 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2899 };
2900
2901 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
2902 {
2903 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
2904 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
2905 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
2906 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2907 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2908 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2909 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2910 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2911 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2912 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2913 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2914 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2915 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2916 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2917 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2918 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2919 };
2920
2921 /* Sebsequent entries in an absolute procedure linkage table look like
2922 this. */
2923
2924 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
2925 {
2926 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
2927 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
2928 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
2929 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
2930 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
2931 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2932 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2933 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2934 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
2935 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
2936 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
2937 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2938 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2939 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2940 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2941 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2942 };
2943
2944 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
2945 {
2946 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
2947 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2948 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2949 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2950 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
2951 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2952 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2953 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2954 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
2955 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
2956 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
2957 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2958 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2959 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2960 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2961 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2962 };
2963
2964 /* Entries in a PIC procedure linkage table look like this. */
2965
2966 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
2967 {
2968 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
2969 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
2970 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
2971 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2972 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2973 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2974 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2975 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2976 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
2977 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
2978 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2979 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2980 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2981 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2982 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2983 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2984 };
2985
2986 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
2987 {
2988 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
2989 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
2990 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
2991 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2992 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2993 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2994 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2995 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2996 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
2997 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
2998 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2999 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3000 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3001 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3002 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3003 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3004 };
3005
3006 static const bfd_byte *elf_sh64_plt0_entry;
3007 static const bfd_byte *elf_sh64_plt_entry;
3008 static const bfd_byte *elf_sh64_pic_plt_entry;
3009
3010 /* Create an entry in an sh ELF linker hash table. */
3011
3012 static struct bfd_hash_entry *
3013 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
3014 struct bfd_hash_table *table,
3015 const char *string)
3016 {
3017 struct elf_sh64_link_hash_entry *ret =
3018 (struct elf_sh64_link_hash_entry *) entry;
3019
3020 /* Allocate the structure if it has not already been allocated by a
3021 subclass. */
3022 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3023 ret = ((struct elf_sh64_link_hash_entry *)
3024 bfd_hash_allocate (table,
3025 sizeof (struct elf_sh64_link_hash_entry)));
3026 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3027 return (struct bfd_hash_entry *) ret;
3028
3029 /* Call the allocation method of the superclass. */
3030 ret = ((struct elf_sh64_link_hash_entry *)
3031 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3032 table, string));
3033 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3034 {
3035 ret->pcrel_relocs_copied = NULL;
3036 ret->datalabel_got_offset = (bfd_vma) -1;
3037 }
3038
3039 return (struct bfd_hash_entry *) ret;
3040 }
3041
3042 /* Create an sh64 ELF linker hash table. */
3043
3044 static struct bfd_link_hash_table *
3045 sh64_elf64_link_hash_table_create (bfd *abfd)
3046 {
3047 struct elf_link_hash_table *ret;
3048
3049 ret = (struct elf_link_hash_table *) bfd_zmalloc (sizeof (* ret));
3050 if (ret == (struct elf_link_hash_table *) NULL)
3051 return NULL;
3052
3053 if (!_bfd_elf_link_hash_table_init (ret, abfd,
3054 sh64_elf64_link_hash_newfunc,
3055 sizeof (struct elf_sh64_link_hash_entry),
3056 GENERIC_ELF_DATA))
3057 {
3058 free (ret);
3059 return NULL;
3060 }
3061
3062 return &ret->root;
3063 }
3064
3065 inline static void
3066 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
3067 {
3068 bfd_put_32 (output_bfd,
3069 bfd_get_32 (output_bfd, addr)
3070 | ((value >> 6) & 0x3fffc00),
3071 addr);
3072 bfd_put_32 (output_bfd,
3073 bfd_get_32 (output_bfd, addr + 4)
3074 | ((value << 10) & 0x3fffc00),
3075 addr + 4);
3076 }
3077
3078 inline static void
3079 movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr)
3080 {
3081 bfd_put_32 (output_bfd,
3082 bfd_get_32 (output_bfd, addr)
3083 | ((value >> 38) & 0x3fffc00),
3084 addr);
3085 bfd_put_32 (output_bfd,
3086 bfd_get_32 (output_bfd, addr + 4)
3087 | ((value >> 22) & 0x3fffc00),
3088 addr + 4);
3089 bfd_put_32 (output_bfd,
3090 bfd_get_32 (output_bfd, addr + 8)
3091 | ((value >> 6) & 0x3fffc00),
3092 addr + 8);
3093 bfd_put_32 (output_bfd,
3094 bfd_get_32 (output_bfd, addr + 12)
3095 | ((value << 10) & 0x3fffc00),
3096 addr + 12);
3097 }
3098
3099 /* Create dynamic sections when linking against a dynamic object. */
3100
3101 static bfd_boolean
3102 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3103 {
3104 flagword flags, pltflags;
3105 register asection *s;
3106 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3107 int ptralign = 0;
3108
3109 switch (bed->s->arch_size)
3110 {
3111 case 32:
3112 ptralign = 2;
3113 break;
3114
3115 case 64:
3116 ptralign = 3;
3117 break;
3118
3119 default:
3120 bfd_set_error (bfd_error_bad_value);
3121 return FALSE;
3122 }
3123
3124 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3125 .rel[a].bss sections. */
3126
3127 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3128 | SEC_LINKER_CREATED);
3129
3130 pltflags = flags;
3131 pltflags |= SEC_CODE;
3132 if (bed->plt_not_loaded)
3133 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3134 if (bed->plt_readonly)
3135 pltflags |= SEC_READONLY;
3136
3137 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
3138 if (s == NULL
3139 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3140 return FALSE;
3141
3142 if (bed->want_plt_sym)
3143 {
3144 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3145 .plt section. */
3146 struct elf_link_hash_entry *h;
3147 struct bfd_link_hash_entry *bh = NULL;
3148
3149 if (! (_bfd_generic_link_add_one_symbol
3150 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3151 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3152 return FALSE;
3153
3154 h = (struct elf_link_hash_entry *) bh;
3155 h->def_regular = 1;
3156 h->type = STT_OBJECT;
3157 elf_hash_table (info)->hplt = h;
3158
3159 if (bfd_link_pic (info)
3160 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3161 return FALSE;
3162 }
3163
3164 s = bfd_make_section_anyway_with_flags (abfd,
3165 bed->default_use_rela_p
3166 ? ".rela.plt" : ".rel.plt",
3167 flags | SEC_READONLY);
3168 if (s == NULL
3169 || ! bfd_set_section_alignment (abfd, s, ptralign))
3170 return FALSE;
3171
3172 if (! _bfd_elf_create_got_section (abfd, info))
3173 return FALSE;
3174
3175 if (bed->want_dynbss)
3176 {
3177 /* The .dynbss section is a place to put symbols which are defined
3178 by dynamic objects, are referenced by regular objects, and are
3179 not functions. We must allocate space for them in the process
3180 image and use a R_*_COPY reloc to tell the dynamic linker to
3181 initialize them at run time. The linker script puts the .dynbss
3182 section into the .bss section of the final image. */
3183 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3184 SEC_ALLOC | SEC_LINKER_CREATED);
3185 if (s == NULL)
3186 return FALSE;
3187
3188 /* The .rel[a].bss section holds copy relocs. This section is not
3189 normally needed. We need to create it here, though, so that the
3190 linker will map it to an output section. We can't just create it
3191 only if we need it, because we will not know whether we need it
3192 until we have seen all the input files, and the first time the
3193 main linker code calls BFD after examining all the input files
3194 (size_dynamic_sections) the input sections have already been
3195 mapped to the output sections. If the section turns out not to
3196 be needed, we can discard it later. We will never need this
3197 section when generating a shared object, since they do not use
3198 copy relocs. */
3199 if (! bfd_link_pic (info))
3200 {
3201 s = bfd_make_section_anyway_with_flags (abfd,
3202 (bed->default_use_rela_p
3203 ? ".rela.bss" : ".rel.bss"),
3204 flags | SEC_READONLY);
3205 if (s == NULL
3206 || ! bfd_set_section_alignment (abfd, s, ptralign))
3207 return FALSE;
3208 }
3209 }
3210
3211 return TRUE;
3212 }
3213 \f
3214 /* Adjust a symbol defined by a dynamic object and referenced by a
3215 regular object. The current definition is in some section of the
3216 dynamic object, but we're not including those sections. We have to
3217 change the definition to something the rest of the link can
3218 understand. */
3219
3220 static bfd_boolean
3221 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3222 struct elf_link_hash_entry *h)
3223 {
3224 bfd *dynobj;
3225 asection *s;
3226
3227 dynobj = elf_hash_table (info)->dynobj;
3228
3229 /* Make sure we know what is going on here. */
3230 BFD_ASSERT (dynobj != NULL
3231 && (h->needs_plt
3232 || h->u.weakdef != NULL
3233 || (h->def_dynamic
3234 && h->ref_regular
3235 && !h->def_regular)));
3236
3237 /* If this is a function, put it in the procedure linkage table. We
3238 will fill in the contents of the procedure linkage table later,
3239 when we know the address of the .got section. */
3240 if (h->type == STT_FUNC
3241 || h->needs_plt)
3242 {
3243 if (! bfd_link_pic (info)
3244 && !h->def_dynamic
3245 && !h->ref_dynamic)
3246 {
3247 /* This case can occur if we saw a PLT reloc in an input
3248 file, but the symbol was never referred to by a dynamic
3249 object. In such a case, we don't actually need to build
3250 a procedure linkage table, and we can just do a REL64
3251 reloc instead. */
3252 BFD_ASSERT (h->needs_plt);
3253 return TRUE;
3254 }
3255
3256 /* Make sure this symbol is output as a dynamic symbol. */
3257 if (h->dynindx == -1)
3258 {
3259 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3260 return FALSE;
3261 }
3262
3263 s = bfd_get_linker_section (dynobj, ".plt");
3264 BFD_ASSERT (s != NULL);
3265
3266 /* If this is the first .plt entry, make room for the special
3267 first entry. */
3268 if (s->size == 0)
3269 s->size += PLT_ENTRY_SIZE;
3270
3271 /* If this symbol is not defined in a regular file, and we are
3272 not generating a shared library, then set the symbol to this
3273 location in the .plt. This is required to make function
3274 pointers compare as equal between the normal executable and
3275 the shared library. */
3276 if (! bfd_link_pic (info)
3277 && !h->def_regular)
3278 {
3279 h->root.u.def.section = s;
3280 h->root.u.def.value = s->size;
3281 }
3282
3283 h->plt.offset = s->size;
3284
3285 /* Make room for this entry. */
3286 s->size += elf_sh64_sizeof_plt (info);
3287
3288 /* We also need to make an entry in the .got.plt section, which
3289 will be placed in the .got section by the linker script. */
3290
3291 s = bfd_get_linker_section (dynobj, ".got.plt");
3292 BFD_ASSERT (s != NULL);
3293 s->size += 8;
3294
3295 /* We also need to make an entry in the .rela.plt section. */
3296
3297 s = bfd_get_linker_section (dynobj, ".rela.plt");
3298 BFD_ASSERT (s != NULL);
3299 s->size += sizeof (Elf64_External_Rela);
3300
3301 return TRUE;
3302 }
3303
3304 /* If this is a weak symbol, and there is a real definition, the
3305 processor independent code will have arranged for us to see the
3306 real definition first, and we can just use the same value. */
3307 if (h->u.weakdef != NULL)
3308 {
3309 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3310 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3311 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3312 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3313 return TRUE;
3314 }
3315
3316 /* This is a reference to a symbol defined by a dynamic object which
3317 is not a function. */
3318
3319 /* If we are creating a shared library, we must presume that the
3320 only references to the symbol are via the global offset table.
3321 For such cases we need not do anything here; the relocations will
3322 be handled correctly by relocate_section. */
3323 if (bfd_link_pic (info))
3324 return TRUE;
3325
3326 /* If there are no references to this symbol that do not use the
3327 GOT, we don't need to generate a copy reloc. */
3328 if (!h->non_got_ref)
3329 return TRUE;
3330
3331 /* We must allocate the symbol in our .dynbss section, which will
3332 become part of the .bss section of the executable. There will be
3333 an entry for this symbol in the .dynsym section. The dynamic
3334 object will contain position independent code, so all references
3335 from the dynamic object to this symbol will go through the global
3336 offset table. The dynamic linker will use the .dynsym entry to
3337 determine the address it must put in the global offset table, so
3338 both the dynamic object and the regular object will refer to the
3339 same memory location for the variable. */
3340
3341 s = bfd_get_linker_section (dynobj, ".dynbss");
3342 BFD_ASSERT (s != NULL);
3343
3344 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3345 copy the initial value out of the dynamic object and into the
3346 runtime process image. We need to remember the offset into the
3347 .rela.bss section we are going to use. */
3348 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
3349 {
3350 asection *srel;
3351
3352 srel = bfd_get_linker_section (dynobj, ".rela.bss");
3353 BFD_ASSERT (srel != NULL);
3354 srel->size += sizeof (Elf64_External_Rela);
3355 h->needs_copy = 1;
3356 }
3357
3358 return _bfd_elf_adjust_dynamic_copy (info, h, s);
3359 }
3360
3361 /* This function is called via sh_elf_link_hash_traverse if we are
3362 creating a shared object with -Bsymbolic. It discards the space
3363 allocated to copy PC relative relocs against symbols which are
3364 defined in regular objects. We allocated space for them in the
3365 check_relocs routine, but we won't fill them in in the
3366 relocate_section routine. */
3367
3368 static bfd_boolean
3369 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3370 void *ignore ATTRIBUTE_UNUSED)
3371 {
3372 struct elf_sh64_pcrel_relocs_copied *s;
3373
3374 /* We only discard relocs for symbols defined in a regular object. */
3375 if (!h->root.def_regular)
3376 return TRUE;
3377
3378 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3379 s->section->size -= s->count * sizeof (Elf64_External_Rela);
3380
3381 return TRUE;
3382 }
3383
3384 /* Set the sizes of the dynamic sections. */
3385
3386 static bfd_boolean
3387 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3388 struct bfd_link_info *info)
3389 {
3390 bfd *dynobj;
3391 asection *s;
3392 bfd_boolean plt;
3393 bfd_boolean relocs;
3394 bfd_boolean reltext;
3395
3396 dynobj = elf_hash_table (info)->dynobj;
3397 BFD_ASSERT (dynobj != NULL);
3398
3399 if (elf_hash_table (info)->dynamic_sections_created)
3400 {
3401 /* Set the contents of the .interp section to the interpreter. */
3402 if (bfd_link_executable (info) && !info->nointerp)
3403 {
3404 s = bfd_get_linker_section (dynobj, ".interp");
3405 BFD_ASSERT (s != NULL);
3406 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3407 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3408 }
3409 }
3410 else
3411 {
3412 /* We may have created entries in the .rela.got section.
3413 However, if we are not creating the dynamic sections, we will
3414 not actually use these entries. Reset the size of .rela.got,
3415 which will cause it to get stripped from the output file
3416 below. */
3417 s = bfd_get_linker_section (dynobj, ".rela.got");
3418 if (s != NULL)
3419 s->size = 0;
3420 }
3421
3422 /* If this is a -Bsymbolic shared link, then we need to discard all
3423 PC relative relocs against symbols defined in a regular object.
3424 We allocated space for them in the check_relocs routine, but we
3425 will not fill them in in the relocate_section routine. */
3426 if (bfd_link_pic (info) && info->symbolic)
3427 sh64_elf64_link_hash_traverse (elf_hash_table (info),
3428 sh64_elf64_discard_copies, NULL);
3429
3430 /* The check_relocs and adjust_dynamic_symbol entry points have
3431 determined the sizes of the various dynamic sections. Allocate
3432 memory for them. */
3433 plt = FALSE;
3434 relocs = FALSE;
3435 reltext = FALSE;
3436 for (s = dynobj->sections; s != NULL; s = s->next)
3437 {
3438 const char *name;
3439
3440 if ((s->flags & SEC_LINKER_CREATED) == 0)
3441 continue;
3442
3443 /* It's OK to base decisions on the section name, because none
3444 of the dynobj section names depend upon the input files. */
3445 name = bfd_get_section_name (dynobj, s);
3446
3447 if (strcmp (name, ".plt") == 0)
3448 {
3449 /* Remember whether there is a PLT. */
3450 plt = s->size != 0;
3451 }
3452 else if (CONST_STRNEQ (name, ".rela"))
3453 {
3454 if (s->size != 0)
3455 {
3456 asection *target;
3457
3458 /* Remember whether there are any reloc sections other
3459 than .rela.plt. */
3460 if (strcmp (name, ".rela.plt") != 0)
3461 {
3462 const char *outname;
3463
3464 relocs = TRUE;
3465
3466 /* If this relocation section applies to a read only
3467 section, then we probably need a DT_TEXTREL
3468 entry. The entries in the .rela.plt section
3469 really apply to the .got section, which we
3470 created ourselves and so know is not readonly. */
3471 outname = bfd_get_section_name (output_bfd,
3472 s->output_section);
3473 target = bfd_get_section_by_name (output_bfd, outname + 5);
3474 if (target != NULL
3475 && (target->flags & SEC_READONLY) != 0
3476 && (target->flags & SEC_ALLOC) != 0)
3477 reltext = TRUE;
3478 }
3479
3480 /* We use the reloc_count field as a counter if we need
3481 to copy relocs into the output file. */
3482 s->reloc_count = 0;
3483 }
3484 }
3485 else if (! CONST_STRNEQ (name, ".got")
3486 && strcmp (name, ".dynbss") != 0)
3487 {
3488 /* It's not one of our sections, so don't allocate space. */
3489 continue;
3490 }
3491
3492 if (s->size == 0)
3493 {
3494 /* If we don't need this section, strip it from the
3495 output file. This is mostly to handle .rela.bss and
3496 .rela.plt. We must create both sections in
3497 create_dynamic_sections, because they must be created
3498 before the linker maps input sections to output
3499 sections. The linker does that before
3500 adjust_dynamic_symbol is called, and it is that
3501 function which decides whether anything needs to go
3502 into these sections. */
3503 s->flags |= SEC_EXCLUDE;
3504 continue;
3505 }
3506
3507 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3508 continue;
3509
3510 /* Allocate memory for the section contents. */
3511 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3512 if (s->contents == NULL)
3513 return FALSE;
3514 }
3515
3516 if (elf_hash_table (info)->dynamic_sections_created)
3517 {
3518 /* Add some entries to the .dynamic section. We fill in the
3519 values later, in sh64_elf64_finish_dynamic_sections, but we
3520 must add the entries now so that we get the correct size for
3521 the .dynamic section. The DT_DEBUG entry is filled in by the
3522 dynamic linker and used by the debugger. */
3523 if (bfd_link_executable (info))
3524 {
3525 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3526 return FALSE;
3527 }
3528
3529 if (plt)
3530 {
3531 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3532 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3533 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3534 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3535 return FALSE;
3536 }
3537
3538 if (relocs)
3539 {
3540 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3541 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3542 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3543 sizeof (Elf64_External_Rela)))
3544 return FALSE;
3545 }
3546
3547 if (reltext)
3548 {
3549 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3550 return FALSE;
3551 }
3552 }
3553
3554 return TRUE;
3555 }
3556
3557 /* Finish up dynamic symbol handling. We set the contents of various
3558 dynamic sections here. */
3559
3560 static bfd_boolean
3561 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3562 struct bfd_link_info *info,
3563 struct elf_link_hash_entry *h,
3564 Elf_Internal_Sym *sym)
3565 {
3566 bfd *dynobj;
3567
3568 dynobj = elf_hash_table (info)->dynobj;
3569
3570 if (h->plt.offset != (bfd_vma) -1)
3571 {
3572 asection *splt;
3573 asection *sgot;
3574 asection *srel;
3575
3576 bfd_vma plt_index;
3577 bfd_vma got_offset;
3578 Elf_Internal_Rela rel;
3579 bfd_byte *loc;
3580
3581 /* This symbol has an entry in the procedure linkage table. Set
3582 it up. */
3583
3584 BFD_ASSERT (h->dynindx != -1);
3585
3586 splt = bfd_get_linker_section (dynobj, ".plt");
3587 sgot = bfd_get_linker_section (dynobj, ".got.plt");
3588 srel = bfd_get_linker_section (dynobj, ".rela.plt");
3589 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3590
3591 /* Get the index in the procedure linkage table which
3592 corresponds to this symbol. This is the index of this symbol
3593 in all the symbols for which we are making plt entries. The
3594 first entry in the procedure linkage table is reserved. */
3595 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3596
3597 /* Get the offset into the .got table of the entry that
3598 corresponds to this function. Each .got entry is 8 bytes.
3599 The first three are reserved. */
3600 got_offset = (plt_index + 3) * 8;
3601
3602 if (bfd_link_pic (info))
3603 got_offset -= GOT_BIAS;
3604
3605 /* Fill in the entry in the procedure linkage table. */
3606 if (! bfd_link_pic (info))
3607 {
3608 if (elf_sh64_plt_entry == NULL)
3609 {
3610 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3611 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3612 }
3613 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3614 elf_sh64_sizeof_plt (info));
3615 movi_3shori_putval (output_bfd,
3616 (sgot->output_section->vma
3617 + sgot->output_offset
3618 + got_offset),
3619 (splt->contents + h->plt.offset
3620 + elf_sh64_plt_symbol_offset (info)));
3621
3622 /* Set bottom bit because its for a branch to SHmedia */
3623 movi_shori_putval (output_bfd,
3624 -(h->plt.offset
3625 + elf_sh64_plt_plt0_offset (info) + 8)
3626 | 1,
3627 (splt->contents + h->plt.offset
3628 + elf_sh64_plt_plt0_offset (info)));
3629 }
3630 else
3631 {
3632 if (elf_sh64_pic_plt_entry == NULL)
3633 {
3634 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3635 elf_sh64_pic_plt_entry_be :
3636 elf_sh64_pic_plt_entry_le);
3637 }
3638 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3639 elf_sh64_sizeof_plt (info));
3640 movi_shori_putval (output_bfd, got_offset,
3641 (splt->contents + h->plt.offset
3642 + elf_sh64_plt_symbol_offset (info)));
3643 }
3644
3645 if (bfd_link_pic (info))
3646 got_offset += GOT_BIAS;
3647
3648 movi_shori_putval (output_bfd,
3649 plt_index * sizeof (Elf64_External_Rela),
3650 (splt->contents + h->plt.offset
3651 + elf_sh64_plt_reloc_offset (info)));
3652
3653 /* Fill in the entry in the global offset table. */
3654 bfd_put_64 (output_bfd,
3655 (splt->output_section->vma
3656 + splt->output_offset
3657 + h->plt.offset
3658 + elf_sh64_plt_temp_offset (info)),
3659 sgot->contents + got_offset);
3660
3661 /* Fill in the entry in the .rela.plt section. */
3662 rel.r_offset = (sgot->output_section->vma
3663 + sgot->output_offset
3664 + got_offset);
3665 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3666 rel.r_addend = 0;
3667 rel.r_addend = GOT_BIAS;
3668 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3669 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3670
3671 if (!h->def_regular)
3672 {
3673 /* Mark the symbol as undefined, rather than as defined in
3674 the .plt section. Leave the value alone. */
3675 sym->st_shndx = SHN_UNDEF;
3676 }
3677 }
3678
3679 if (h->got.offset != (bfd_vma) -1)
3680 {
3681 asection *sgot;
3682 asection *srel;
3683 Elf_Internal_Rela rel;
3684 bfd_byte *loc;
3685
3686 /* This symbol has an entry in the global offset table. Set it
3687 up. */
3688
3689 sgot = bfd_get_linker_section (dynobj, ".got");
3690 srel = bfd_get_linker_section (dynobj, ".rela.got");
3691 BFD_ASSERT (sgot != NULL && srel != NULL);
3692
3693 rel.r_offset = (sgot->output_section->vma
3694 + sgot->output_offset
3695 + (h->got.offset &~ 1));
3696
3697 /* If this is a -Bsymbolic link, and the symbol is defined
3698 locally, we just want to emit a RELATIVE reloc. Likewise if
3699 the symbol was forced to be local because of a version file.
3700 The entry in the global offset table will already have been
3701 initialized in the relocate_section function. */
3702 if (bfd_link_pic (info)
3703 && (info->symbolic || h->dynindx == -1)
3704 && h->def_regular)
3705 {
3706 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3707 rel.r_addend = (h->root.u.def.value
3708 + h->root.u.def.section->output_section->vma
3709 + h->root.u.def.section->output_offset);
3710 }
3711 else
3712 {
3713 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3714 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3715 rel.r_addend = 0;
3716 }
3717
3718 loc = srel->contents;
3719 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3720 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3721 }
3722
3723 if (h->needs_copy)
3724 {
3725 asection *s;
3726 Elf_Internal_Rela rel;
3727 bfd_byte *loc;
3728
3729 /* This symbol needs a copy reloc. Set it up. */
3730
3731 BFD_ASSERT (h->dynindx != -1
3732 && (h->root.type == bfd_link_hash_defined
3733 || h->root.type == bfd_link_hash_defweak));
3734
3735 s = bfd_get_linker_section (dynobj, ".rela.bss");
3736 BFD_ASSERT (s != NULL);
3737
3738 rel.r_offset = (h->root.u.def.value
3739 + h->root.u.def.section->output_section->vma
3740 + h->root.u.def.section->output_offset);
3741 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3742 rel.r_addend = 0;
3743 loc = s->contents;
3744 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3745 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3746 }
3747
3748 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3749 if (h == elf_hash_table (info)->hdynamic
3750 || h == elf_hash_table (info)->hgot)
3751 sym->st_shndx = SHN_ABS;
3752
3753 return TRUE;
3754 }
3755
3756 /* Finish up the dynamic sections. */
3757
3758 static bfd_boolean
3759 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3760 struct bfd_link_info *info)
3761 {
3762 bfd *dynobj;
3763 asection *sgot;
3764 asection *sdyn;
3765
3766 dynobj = elf_hash_table (info)->dynobj;
3767
3768 sgot = bfd_get_linker_section (dynobj, ".got.plt");
3769 BFD_ASSERT (sgot != NULL);
3770 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3771
3772 if (elf_hash_table (info)->dynamic_sections_created)
3773 {
3774 asection *splt;
3775 Elf64_External_Dyn *dyncon, *dynconend;
3776
3777 BFD_ASSERT (sdyn != NULL);
3778
3779 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3780 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3781 for (; dyncon < dynconend; dyncon++)
3782 {
3783 Elf_Internal_Dyn dyn;
3784 const char *name;
3785 asection *s;
3786 struct elf_link_hash_entry *h;
3787
3788 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3789
3790 switch (dyn.d_tag)
3791 {
3792 default:
3793 break;
3794
3795 case DT_INIT:
3796 name = info->init_function;
3797 goto get_sym;
3798
3799 case DT_FINI:
3800 name = info->fini_function;
3801 get_sym:
3802 if (dyn.d_un.d_val != 0)
3803 {
3804 h = elf_link_hash_lookup (elf_hash_table (info), name,
3805 FALSE, FALSE, TRUE);
3806 if (h != NULL && (h->other & STO_SH5_ISA32))
3807 {
3808 dyn.d_un.d_val |= 1;
3809 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3810 }
3811 }
3812 break;
3813
3814 case DT_PLTGOT:
3815 name = ".got.plt";
3816 goto get_vma;
3817
3818 case DT_JMPREL:
3819 name = ".rela.plt";
3820 get_vma:
3821 s = bfd_get_linker_section (dynobj, name);
3822 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3823 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3824 break;
3825
3826 case DT_PLTRELSZ:
3827 s = bfd_get_linker_section (dynobj, ".rela.plt");
3828 dyn.d_un.d_val = s->size;
3829 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3830 break;
3831
3832 case DT_RELASZ:
3833 /* My reading of the SVR4 ABI indicates that the
3834 procedure linkage table relocs (DT_JMPREL) should be
3835 included in the overall relocs (DT_RELA). This is
3836 what Solaris does. However, UnixWare can not handle
3837 that case. Therefore, we override the DT_RELASZ entry
3838 here to make it not include the JMPREL relocs. Since
3839 the linker script arranges for .rela.plt to follow all
3840 other relocation sections, we don't have to worry
3841 about changing the DT_RELA entry. */
3842 s = bfd_get_linker_section (dynobj, ".rela.plt");
3843 if (s != NULL)
3844 dyn.d_un.d_val -= s->size;
3845 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3846 break;
3847 }
3848 }
3849
3850 /* Fill in the first entry in the procedure linkage table. */
3851 splt = bfd_get_linker_section (dynobj, ".plt");
3852 if (splt && splt->size > 0)
3853 {
3854 if (bfd_link_pic (info))
3855 {
3856 if (elf_sh64_pic_plt_entry == NULL)
3857 {
3858 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3859 elf_sh64_pic_plt_entry_be :
3860 elf_sh64_pic_plt_entry_le);
3861 }
3862 memcpy (splt->contents, elf_sh64_pic_plt_entry,
3863 elf_sh64_sizeof_plt (info));
3864 }
3865 else
3866 {
3867 if (elf_sh64_plt0_entry == NULL)
3868 {
3869 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
3870 elf_sh64_plt0_entry_be :
3871 elf_sh64_plt0_entry_le);
3872 }
3873 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
3874 movi_3shori_putval (output_bfd,
3875 sgot->output_section->vma
3876 + sgot->output_offset,
3877 splt->contents
3878 + elf_sh64_plt0_gotplt_offset (info));
3879 }
3880
3881 /* UnixWare sets the entsize of .plt to 8, although that doesn't
3882 really seem like the right value. */
3883 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
3884 }
3885 }
3886
3887 /* Fill in the first three entries in the global offset table. */
3888 if (sgot->size > 0)
3889 {
3890 if (sdyn == NULL)
3891 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
3892 else
3893 bfd_put_64 (output_bfd,
3894 sdyn->output_section->vma + sdyn->output_offset,
3895 sgot->contents);
3896 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3897 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
3898 }
3899
3900 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
3901
3902 return TRUE;
3903 }
3904
3905 /* Merge non visibility st_other attribute when the symbol comes from
3906 a dynamic object. */
3907 static void
3908 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
3909 const Elf_Internal_Sym *isym,
3910 bfd_boolean definition,
3911 bfd_boolean dynamic ATTRIBUTE_UNUSED)
3912 {
3913 if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0)
3914 {
3915 unsigned char other;
3916
3917 /* Take the balance of OTHER from the definition. */
3918 other = (definition ? isym->st_other : h->other);
3919 other &= ~ ELF_ST_VISIBILITY (-1);
3920 h->other = other | ELF_ST_VISIBILITY (h->other);
3921 }
3922
3923 return;
3924 }
3925
3926 static const struct bfd_elf_special_section sh64_elf64_special_sections[]=
3927 {
3928 { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 },
3929 { NULL, 0, 0, 0, 0 }
3930 };
3931
3932 #define TARGET_BIG_SYM sh64_elf64_vec
3933 #define TARGET_BIG_NAME "elf64-sh64"
3934 #define TARGET_LITTLE_SYM sh64_elf64_le_vec
3935 #define TARGET_LITTLE_NAME "elf64-sh64l"
3936 #define ELF_ARCH bfd_arch_sh
3937 #define ELF_MACHINE_CODE EM_SH
3938 #define ELF_MAXPAGESIZE 128
3939
3940 #define elf_symbol_leading_char '_'
3941
3942 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
3943 #define bfd_elf64_bfd_reloc_name_lookup \
3944 sh_elf64_reloc_name_lookup
3945 #define elf_info_to_howto sh_elf64_info_to_howto
3946
3947 /* Note: there's no relaxation at present. */
3948
3949 #define elf_backend_relocate_section sh_elf64_relocate_section
3950 #define bfd_elf64_bfd_get_relocated_section_contents \
3951 sh_elf64_get_relocated_section_contents
3952 #define elf_backend_object_p sh_elf64_set_mach_from_flags
3953 #define bfd_elf64_bfd_set_private_flags \
3954 sh_elf64_set_private_flags
3955 #define bfd_elf64_bfd_copy_private_bfd_data \
3956 sh_elf64_copy_private_data
3957 #define bfd_elf64_bfd_merge_private_bfd_data \
3958 sh_elf64_merge_private_data
3959 #define elf_backend_fake_sections sh64_elf64_fake_sections
3960
3961 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
3962 #define elf_backend_check_relocs sh_elf64_check_relocs
3963
3964 #define elf_backend_can_gc_sections 1
3965
3966 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
3967
3968 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
3969
3970 #define elf_backend_link_output_symbol_hook \
3971 sh64_elf64_link_output_symbol_hook
3972
3973 #define elf_backend_merge_symbol_attribute \
3974 sh64_elf64_merge_symbol_attribute
3975
3976 #define elf_backend_final_write_processing \
3977 sh64_elf64_final_write_processing
3978
3979 #define elf_backend_create_dynamic_sections \
3980 sh64_elf64_create_dynamic_sections
3981 #define bfd_elf64_bfd_link_hash_table_create \
3982 sh64_elf64_link_hash_table_create
3983 #define elf_backend_adjust_dynamic_symbol \
3984 sh64_elf64_adjust_dynamic_symbol
3985 #define elf_backend_size_dynamic_sections \
3986 sh64_elf64_size_dynamic_sections
3987 #define elf_backend_omit_section_dynsym \
3988 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
3989 #define elf_backend_finish_dynamic_symbol \
3990 sh64_elf64_finish_dynamic_symbol
3991 #define elf_backend_finish_dynamic_sections \
3992 sh64_elf64_finish_dynamic_sections
3993 #define elf_backend_special_sections sh64_elf64_special_sections
3994
3995 #define elf_backend_want_got_plt 1
3996 #define elf_backend_plt_readonly 1
3997 #define elf_backend_want_plt_sym 0
3998 #define elf_backend_got_header_size 24
3999
4000 #include "elf64-target.h"
4001
4002 /* NetBSD support. */
4003 #undef TARGET_BIG_SYM
4004 #define TARGET_BIG_SYM sh64_elf64_nbsd_vec
4005 #undef TARGET_BIG_NAME
4006 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
4007 #undef TARGET_LITTLE_SYM
4008 #define TARGET_LITTLE_SYM sh64_elf64_nbsd_le_vec
4009 #undef TARGET_LITTLE_NAME
4010 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
4011 #undef ELF_MAXPAGESIZE
4012 #define ELF_MAXPAGESIZE 0x10000
4013 #undef elf_symbol_leading_char
4014 #define elf_symbol_leading_char 0
4015
4016 #define elf64_bed elf64_sh64_nbsd_bed
4017
4018 #include "elf64-target.h"
4019
4020 /* Linux support. */
4021 #undef TARGET_BIG_SYM
4022 #define TARGET_BIG_SYM sh64_elf64_linux_be_vec
4023 #undef TARGET_BIG_NAME
4024 #define TARGET_BIG_NAME "elf64-sh64big-linux"
4025 #undef TARGET_LITTLE_SYM
4026 #define TARGET_LITTLE_SYM sh64_elf64_linux_vec
4027 #undef TARGET_LITTLE_NAME
4028 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
4029 #undef elf64_bed
4030 #define elf64_bed elf64_sh64_linux_bed
4031
4032 #include "elf64-target.h"
GDB Binutils - Deliverables
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