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Use ui_file_as_string in gdb/printcmd.c
[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 /* xgettext:c-format */
1544 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
1545 input_bfd, input_section,
1546 (long) rel->r_offset, howto->name);
1547 return FALSE;
1548 }
1549
1550 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1551 msec = sec;
1552 addend =
1553 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1554 - relocation;
1555 addend += msec->output_section->vma + msec->output_offset;
1556 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1557 addend = 0;
1558 }
1559 }
1560 else
1561 {
1562 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1563
1564 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1565 while (h->root.type == bfd_link_hash_indirect
1566 || h->root.type == bfd_link_hash_warning)
1567 {
1568 /* If the reference passes a symbol marked with
1569 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1570 doesn't count. */
1571 seen_stt_datalabel |= h->type == STT_DATALABEL;
1572 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1573 }
1574
1575 if (h->root.type == bfd_link_hash_defined
1576 || h->root.type == bfd_link_hash_defweak)
1577 {
1578 sec = h->root.u.def.section;
1579 /* In these cases, we don't need the relocation value.
1580 We check specially because in some obscure cases
1581 sec->output_section will be NULL. */
1582 if (r_type == R_SH_GOTPC_LOW16
1583 || r_type == R_SH_GOTPC_MEDLOW16
1584 || r_type == R_SH_GOTPC_MEDHI16
1585 || r_type == R_SH_GOTPC_HI16
1586 || ((r_type == R_SH_PLT_LOW16
1587 || r_type == R_SH_PLT_MEDLOW16
1588 || r_type == R_SH_PLT_MEDHI16
1589 || r_type == R_SH_PLT_HI16)
1590 && h->plt.offset != (bfd_vma) -1)
1591 || ((r_type == R_SH_GOT_LOW16
1592 || r_type == R_SH_GOT_MEDLOW16
1593 || r_type == R_SH_GOT_MEDHI16
1594 || r_type == R_SH_GOT_HI16)
1595 && elf_hash_table (info)->dynamic_sections_created
1596 && (! bfd_link_pic (info)
1597 || (! info->symbolic && h->dynindx != -1)
1598 || !h->def_regular))
1599 /* The cases above are those in which relocation is
1600 overwritten in the switch block below. The cases
1601 below are those in which we must defer relocation
1602 to run-time, because we can't resolve absolute
1603 addresses when creating a shared library. */
1604 || (bfd_link_pic (info)
1605 && ((! info->symbolic && h->dynindx != -1)
1606 || !h->def_regular)
1607 && ((r_type == R_SH_64
1608 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1609 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1610 || r_type == R_SH_64_PCREL)
1611 && ((input_section->flags & SEC_ALLOC) != 0
1612 /* DWARF will emit R_SH_DIR32 relocations in its
1613 sections against symbols defined externally
1614 in shared libraries. We can't do anything
1615 with them here. */
1616 || (input_section->flags & SEC_DEBUGGING) != 0))
1617 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1618 sections because such sections are not SEC_ALLOC and
1619 thus ld.so will not process them. */
1620 || (sec->output_section == NULL
1621 && ((input_section->flags & SEC_DEBUGGING) != 0
1622 && h->def_dynamic)))
1623 ;
1624 else if (sec->output_section != NULL)
1625 relocation = ((h->root.u.def.value
1626 + sec->output_section->vma
1627 + sec->output_offset)
1628 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1629 symbol value, unless we've seen
1630 STT_DATALABEL on the way to it. */
1631 | ((h->other & STO_SH5_ISA32) != 0
1632 && ! seen_stt_datalabel));
1633 else if (!bfd_link_relocatable (info)
1634 && (_bfd_elf_section_offset (output_bfd, info,
1635 input_section,
1636 rel->r_offset)
1637 != (bfd_vma) -1))
1638 {
1639 _bfd_error_handler
1640 /* xgettext:c-format */
1641 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
1642 input_bfd,
1643 input_section,
1644 (long) rel->r_offset,
1645 howto->name,
1646 h->root.root.string);
1647 }
1648 }
1649 else if (h->root.type == bfd_link_hash_undefweak)
1650 ;
1651 else if (info->unresolved_syms_in_objects == RM_IGNORE
1652 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1653 ;
1654 else if (!bfd_link_relocatable (info))
1655 (*info->callbacks->undefined_symbol)
1656 (info, h->root.root.string, input_bfd,
1657 input_section, rel->r_offset,
1658 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1659 || ELF_ST_VISIBILITY (h->other)));
1660 }
1661
1662 if (sec != NULL && discarded_section (sec))
1663 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1664 rel, 1, relend, howto, 0, contents);
1665
1666 if (bfd_link_relocatable (info))
1667 continue;
1668
1669 disp = (relocation
1670 - input_section->output_section->vma
1671 - input_section->output_offset
1672 - rel->r_offset);
1673 dropped = 0;
1674 switch ((int)r_type)
1675 {
1676 case R_SH_PT_16: dropped = disp & 2; break;
1677 case R_SH_DIR10SW: dropped = disp & 1; break;
1678 case R_SH_DIR10SL: dropped = disp & 3; break;
1679 case R_SH_DIR10SQ: dropped = disp & 7; break;
1680 }
1681 if (dropped != 0)
1682 {
1683 _bfd_error_handler
1684 /* xgettext:c-format */
1685 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
1686 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation);
1687 bfd_set_error (bfd_error_bad_value);
1688 return FALSE;
1689 }
1690 switch ((int)r_type)
1691 {
1692 case R_SH_64:
1693 case R_SH_64_PCREL:
1694 if (bfd_link_pic (info)
1695 && (input_section->flags & SEC_ALLOC) != 0
1696 && (r_type != R_SH_64_PCREL
1697 || (h != NULL
1698 && h->dynindx != -1
1699 && (! info->symbolic
1700 || !h->def_regular))))
1701 {
1702 Elf_Internal_Rela outrel;
1703 bfd_byte *loc;
1704 bfd_boolean skip, relocate;
1705
1706 /* When generating a shared object, these relocations
1707 are copied into the output file to be resolved at run
1708 time. */
1709
1710 if (sreloc == NULL)
1711 {
1712 sreloc = _bfd_elf_get_dynamic_reloc_section
1713 (input_bfd, input_section, /*rela?*/ TRUE);
1714 if (sreloc == NULL)
1715 return FALSE;
1716 }
1717
1718 skip = FALSE;
1719 relocate = FALSE;
1720
1721 outrel.r_offset
1722 = _bfd_elf_section_offset (output_bfd, info,
1723 input_section, rel->r_offset);
1724
1725 if (outrel.r_offset == (bfd_vma) -1)
1726 skip = TRUE;
1727 else if (outrel.r_offset == (bfd_vma) -2)
1728 skip = TRUE, relocate = TRUE;
1729
1730 outrel.r_offset += (input_section->output_section->vma
1731 + input_section->output_offset);
1732
1733 if (skip)
1734 memset (&outrel, 0, sizeof outrel);
1735 else if (r_type == R_SH_64_PCREL)
1736 {
1737 BFD_ASSERT (h != NULL && h->dynindx != -1);
1738 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1739 outrel.r_addend = rel->r_addend;
1740 }
1741 else
1742 {
1743 /* h->dynindx may be -1 if this symbol was marked to
1744 become local. */
1745 if (h == NULL
1746 || ((info->symbolic || h->dynindx == -1)
1747 && h->def_regular))
1748 {
1749 relocate = TRUE;
1750 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1751 outrel.r_addend = relocation + rel->r_addend;
1752 }
1753 else
1754 {
1755 BFD_ASSERT (h->dynindx != -1);
1756 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1757 outrel.r_addend = relocation + rel->r_addend;
1758 }
1759 }
1760
1761 loc = sreloc->contents;
1762 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1763 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1764
1765 /* If this reloc is against an external symbol, we do
1766 not want to fiddle with the addend. Otherwise, we
1767 need to include the symbol value so that it becomes
1768 an addend for the dynamic reloc. */
1769 if (! relocate)
1770 continue;
1771 }
1772 else if (r_type == R_SH_64)
1773 addend = rel->r_addend;
1774 goto final_link_relocate;
1775
1776 case R_SH_GOTPLT_LOW16:
1777 case R_SH_GOTPLT_MEDLOW16:
1778 case R_SH_GOTPLT_MEDHI16:
1779 case R_SH_GOTPLT_HI16:
1780 case R_SH_GOTPLT10BY4:
1781 case R_SH_GOTPLT10BY8:
1782 /* Relocation is to the entry for this symbol in the
1783 procedure linkage table. */
1784
1785 if (h == NULL
1786 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1787 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1788 || ! bfd_link_pic (info)
1789 || info->symbolic
1790 || h->dynindx == -1
1791 || h->plt.offset == (bfd_vma) -1
1792 || h->got.offset != (bfd_vma) -1)
1793 goto force_got;
1794
1795 /* Relocation is to the entry for this symbol in the global
1796 offset table extension for the procedure linkage table. */
1797 if (sgotplt == NULL)
1798 {
1799 sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
1800 BFD_ASSERT (sgotplt != NULL);
1801 }
1802
1803 relocation = (sgotplt->output_offset
1804 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1805 - 1 + 3) * 8));
1806
1807 relocation -= GOT_BIAS;
1808
1809 goto final_link_relocate;
1810
1811 force_got:
1812 case R_SH_GOT_LOW16:
1813 case R_SH_GOT_MEDLOW16:
1814 case R_SH_GOT_MEDHI16:
1815 case R_SH_GOT_HI16:
1816 case R_SH_GOT10BY4:
1817 case R_SH_GOT10BY8:
1818 /* Relocation is to the entry for this symbol in the global
1819 offset table. */
1820 if (sgot == NULL)
1821 {
1822 sgot = bfd_get_linker_section (dynobj, ".got");
1823 BFD_ASSERT (sgot != NULL);
1824 }
1825
1826 if (h != NULL)
1827 {
1828 bfd_vma off;
1829
1830 off = h->got.offset;
1831 if (seen_stt_datalabel)
1832 {
1833 struct elf_sh64_link_hash_entry *hsh;
1834
1835 hsh = (struct elf_sh64_link_hash_entry *)h;
1836 off = hsh->datalabel_got_offset;
1837 }
1838 BFD_ASSERT (off != (bfd_vma) -1);
1839
1840 if (! elf_hash_table (info)->dynamic_sections_created
1841 || (bfd_link_pic (info)
1842 && (info->symbolic || h->dynindx == -1
1843 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1844 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1845 && h->def_regular))
1846 {
1847 /* This is actually a static link, or it is a
1848 -Bsymbolic link and the symbol is defined
1849 locally, or the symbol was forced to be local
1850 because of a version file. We must initialize
1851 this entry in the global offset table. Since the
1852 offset must always be a multiple of 4, we use the
1853 least significant bit to record whether we have
1854 initialized it already.
1855
1856 When doing a dynamic link, we create a .rela.got
1857 relocation entry to initialize the value. This
1858 is done in the finish_dynamic_symbol routine. */
1859 if ((off & 1) != 0)
1860 off &= ~1;
1861 else
1862 {
1863 bfd_put_64 (output_bfd, relocation,
1864 sgot->contents + off);
1865 if (seen_stt_datalabel)
1866 {
1867 struct elf_sh64_link_hash_entry *hsh;
1868
1869 hsh = (struct elf_sh64_link_hash_entry *)h;
1870 hsh->datalabel_got_offset |= 1;
1871 }
1872 else
1873 h->got.offset |= 1;
1874 }
1875 }
1876
1877 relocation = sgot->output_offset + off;
1878 }
1879 else
1880 {
1881 bfd_vma off;
1882
1883 if (rel->r_addend)
1884 {
1885 BFD_ASSERT (local_got_offsets != NULL
1886 && (local_got_offsets[symtab_hdr->sh_info
1887 + r_symndx]
1888 != (bfd_vma) -1));
1889
1890 off = local_got_offsets[symtab_hdr->sh_info
1891 + r_symndx];
1892 }
1893 else
1894 {
1895 BFD_ASSERT (local_got_offsets != NULL
1896 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1897
1898 off = local_got_offsets[r_symndx];
1899 }
1900
1901 /* The offset must always be a multiple of 8. We use
1902 the least significant bit to record whether we have
1903 already generated the necessary reloc. */
1904 if ((off & 1) != 0)
1905 off &= ~1;
1906 else
1907 {
1908 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1909
1910 if (bfd_link_pic (info))
1911 {
1912 asection *s;
1913 Elf_Internal_Rela outrel;
1914 bfd_byte *loc;
1915
1916 s = bfd_get_linker_section (dynobj, ".rela.got");
1917 BFD_ASSERT (s != NULL);
1918
1919 outrel.r_offset = (sgot->output_section->vma
1920 + sgot->output_offset
1921 + off);
1922 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1923 outrel.r_addend = relocation;
1924 loc = s->contents;
1925 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1926 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1927 }
1928
1929 if (rel->r_addend)
1930 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1931 else
1932 local_got_offsets[r_symndx] |= 1;
1933 }
1934
1935 relocation = sgot->output_offset + off;
1936 }
1937
1938 relocation -= GOT_BIAS;
1939
1940 goto final_link_relocate;
1941
1942 case R_SH_GOTOFF_LOW16:
1943 case R_SH_GOTOFF_MEDLOW16:
1944 case R_SH_GOTOFF_MEDHI16:
1945 case R_SH_GOTOFF_HI16:
1946 /* Relocation is relative to the start of the global offset
1947 table. */
1948
1949 if (sgot == NULL)
1950 {
1951 sgot = bfd_get_linker_section (dynobj, ".got");
1952 BFD_ASSERT (sgot != NULL);
1953 }
1954
1955 /* Note that sgot->output_offset is not involved in this
1956 calculation. We always want the start of .got. If we
1957 defined _GLOBAL_OFFSET_TABLE in a different way, as is
1958 permitted by the ABI, we might have to change this
1959 calculation. */
1960 relocation -= sgot->output_section->vma;
1961
1962 relocation -= GOT_BIAS;
1963
1964 addend = rel->r_addend;
1965
1966 goto final_link_relocate;
1967
1968 case R_SH_GOTPC_LOW16:
1969 case R_SH_GOTPC_MEDLOW16:
1970 case R_SH_GOTPC_MEDHI16:
1971 case R_SH_GOTPC_HI16:
1972 /* Use global offset table as symbol value. */
1973
1974 if (sgot == NULL)
1975 {
1976 sgot = bfd_get_linker_section (dynobj, ".got");
1977 BFD_ASSERT (sgot != NULL);
1978 }
1979
1980 relocation = sgot->output_section->vma;
1981
1982 relocation += GOT_BIAS;
1983
1984 addend = rel->r_addend;
1985
1986 goto final_link_relocate;
1987
1988 case R_SH_PLT_LOW16:
1989 case R_SH_PLT_MEDLOW16:
1990 case R_SH_PLT_MEDHI16:
1991 case R_SH_PLT_HI16:
1992 /* Relocation is to the entry for this symbol in the
1993 procedure linkage table. */
1994
1995 /* Resolve a PLT reloc against a local symbol directly,
1996 without using the procedure linkage table. */
1997 if (h == NULL)
1998 goto final_link_relocate;
1999
2000 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2001 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2002 goto final_link_relocate;
2003
2004 if (h->plt.offset == (bfd_vma) -1)
2005 {
2006 /* We didn't make a PLT entry for this symbol. This
2007 happens when statically linking PIC code, or when
2008 using -Bsymbolic. */
2009 goto final_link_relocate;
2010 }
2011
2012 if (splt == NULL)
2013 {
2014 splt = bfd_get_linker_section (dynobj, ".plt");
2015 BFD_ASSERT (splt != NULL);
2016 }
2017
2018 relocation = (splt->output_section->vma
2019 + splt->output_offset
2020 + h->plt.offset);
2021 relocation++;
2022
2023 addend = rel->r_addend;
2024
2025 goto final_link_relocate;
2026
2027 case R_SH_DIR32:
2028 case R_SH_SHMEDIA_CODE:
2029 case R_SH_PT_16:
2030 case R_SH_DIR5U:
2031 case R_SH_DIR6S:
2032 case R_SH_DIR6U:
2033 case R_SH_DIR10S:
2034 case R_SH_DIR10SW:
2035 case R_SH_DIR10SL:
2036 case R_SH_DIR10SQ:
2037 case R_SH_IMMS16:
2038 case R_SH_IMMU16:
2039 case R_SH_IMM_LOW16:
2040 case R_SH_IMM_LOW16_PCREL:
2041 case R_SH_IMM_MEDLOW16:
2042 case R_SH_IMM_MEDLOW16_PCREL:
2043 case R_SH_IMM_MEDHI16:
2044 case R_SH_IMM_MEDHI16_PCREL:
2045 case R_SH_IMM_HI16:
2046 case R_SH_IMM_HI16_PCREL:
2047 addend = rel->r_addend;
2048 /* Fall through. */
2049 case R_SH_REL32:
2050 final_link_relocate:
2051 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2052 contents, rel->r_offset,
2053 relocation, addend);
2054 break;
2055
2056 default:
2057 bfd_set_error (bfd_error_bad_value);
2058 return FALSE;
2059
2060 }
2061
2062 if (r != bfd_reloc_ok)
2063 {
2064 switch (r)
2065 {
2066 default:
2067 case bfd_reloc_outofrange:
2068 abort ();
2069 case bfd_reloc_overflow:
2070 {
2071 const char *name;
2072
2073 if (h != NULL)
2074 name = NULL;
2075 else
2076 {
2077 name = (bfd_elf_string_from_elf_section
2078 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2079 if (name == NULL)
2080 return FALSE;
2081 if (*name == '\0')
2082 name = bfd_section_name (input_bfd, sec);
2083 }
2084 (*info->callbacks->reloc_overflow)
2085 (info, (h ? &h->root : NULL), name, howto->name,
2086 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2087 }
2088 break;
2089 }
2090 }
2091 }
2092
2093 return TRUE;
2094 }
2095
2096 /* This is a version of bfd_generic_get_relocated_section_contents
2097 that uses sh_elf64_relocate_section.
2098
2099 See sh_elf_relocate_section in elf32-sh.c for the original. */
2100
2101 static bfd_byte *
2102 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2103 struct bfd_link_info *link_info,
2104 struct bfd_link_order *link_order,
2105 bfd_byte *data,
2106 bfd_boolean relocatable,
2107 asymbol **symbols)
2108 {
2109 Elf_Internal_Shdr *symtab_hdr;
2110 asection *input_section = link_order->u.indirect.section;
2111 bfd *input_bfd = input_section->owner;
2112 asection **sections = NULL;
2113 Elf_Internal_Rela *internal_relocs = NULL;
2114 Elf_Internal_Sym *isymbuf = NULL;
2115
2116 /* We only need to handle the case of relaxing, or of having a
2117 particular set of section contents, specially. */
2118 if (relocatable
2119 || elf_section_data (input_section)->this_hdr.contents == NULL)
2120 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2121 link_order, data,
2122 relocatable,
2123 symbols);
2124
2125 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2126
2127 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2128 input_section->size);
2129
2130 if ((input_section->flags & SEC_RELOC) != 0
2131 && input_section->reloc_count > 0)
2132 {
2133 Elf_Internal_Sym *isymp;
2134 Elf_Internal_Sym *isymend;
2135 asection **secpp;
2136
2137 /* Read this BFD's local symbols. */
2138 if (symtab_hdr->sh_info != 0)
2139 {
2140 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2141 if (isymbuf == NULL)
2142 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2143 symtab_hdr->sh_info, 0,
2144 NULL, NULL, NULL);
2145 if (isymbuf == NULL)
2146 goto error_return;
2147 }
2148
2149 internal_relocs = (_bfd_elf_link_read_relocs
2150 (input_bfd, input_section, NULL,
2151 (Elf_Internal_Rela *) NULL, FALSE));
2152 if (internal_relocs == NULL)
2153 goto error_return;
2154
2155 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2156 * sizeof (asection *));
2157 if (sections == NULL && symtab_hdr->sh_info > 0)
2158 goto error_return;
2159
2160 secpp = sections;
2161 isymend = isymbuf + symtab_hdr->sh_info;
2162 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2163 {
2164 asection *isec;
2165
2166 if (isymp->st_shndx == SHN_UNDEF)
2167 isec = bfd_und_section_ptr;
2168 else if (isymp->st_shndx == SHN_ABS)
2169 isec = bfd_abs_section_ptr;
2170 else if (isymp->st_shndx == SHN_COMMON)
2171 isec = bfd_com_section_ptr;
2172 else
2173 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2174
2175 *secpp = isec;
2176 }
2177
2178 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2179 input_section, data, internal_relocs,
2180 isymbuf, sections))
2181 goto error_return;
2182
2183 if (sections != NULL)
2184 free (sections);
2185 if (internal_relocs != elf_section_data (input_section)->relocs)
2186 free (internal_relocs);
2187 if (isymbuf != NULL
2188 && (unsigned char *) isymbuf != symtab_hdr->contents)
2189 free (isymbuf);
2190 }
2191
2192 return data;
2193
2194 error_return:
2195 if (sections != NULL)
2196 free (sections);
2197 if (internal_relocs != NULL
2198 && internal_relocs != elf_section_data (input_section)->relocs)
2199 free (internal_relocs);
2200 if (isymbuf != NULL
2201 && (unsigned char *) isymbuf != symtab_hdr->contents)
2202 free (isymbuf);
2203 return NULL;
2204 }
2205
2206 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2207
2208 static bfd_boolean
2209 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2210 Elf_Internal_Shdr *elf_section_hdr,
2211 asection *asect)
2212 {
2213 /* Code sections can only contain SH64 code, so mark them as such. */
2214 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2215 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2216
2217 return TRUE;
2218 }
2219
2220 static bfd_boolean
2221 sh_elf64_set_mach_from_flags (bfd *abfd)
2222 {
2223 flagword flags = elf_elfheader (abfd)->e_flags;
2224
2225 switch (flags & EF_SH_MACH_MASK)
2226 {
2227 case EF_SH5:
2228 /* Just one, but keep the switch construct to make additions easy. */
2229 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2230 break;
2231
2232 default:
2233 bfd_set_error (bfd_error_wrong_format);
2234 return FALSE;
2235 }
2236 return TRUE;
2237 }
2238
2239 /* Function to keep SH64 specific file flags.
2240
2241 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2242
2243 static bfd_boolean
2244 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2245 {
2246 BFD_ASSERT (! elf_flags_init (abfd)
2247 || elf_elfheader (abfd)->e_flags == flags);
2248
2249 elf_elfheader (abfd)->e_flags = flags;
2250 elf_flags_init (abfd) = TRUE;
2251 return sh_elf64_set_mach_from_flags (abfd);
2252 }
2253
2254 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2255 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2256
2257 static bfd_boolean
2258 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2259 {
2260 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2261 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2262 return TRUE;
2263
2264 /* Copy object attributes. */
2265 _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2266
2267 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2268 }
2269
2270 static bfd_boolean
2271 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2272 {
2273 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2274 }
2275
2276 static bfd_boolean
2277 sh_elf64_merge_private_data (bfd *ibfd, struct bfd_link_info *info)
2278 {
2279 bfd *obfd = info->output_bfd;
2280 flagword old_flags, new_flags;
2281
2282 if (! _bfd_generic_verify_endian_match (ibfd, info))
2283 return FALSE;
2284
2285 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2286 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2287 return TRUE;
2288
2289 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2290 {
2291 const char *msg;
2292
2293 if (bfd_get_arch_size (ibfd) == 32
2294 && bfd_get_arch_size (obfd) == 64)
2295 /* xgettext:c-format */
2296 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
2297 else if (bfd_get_arch_size (ibfd) == 64
2298 && bfd_get_arch_size (obfd) == 32)
2299 /* xgettext:c-format */
2300 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
2301 else
2302 /* xgettext:c-format */
2303 msg = _("%s: object size does not match that of target %s");
2304
2305 _bfd_error_handler (msg, bfd_get_filename (ibfd),
2306 bfd_get_filename (obfd));
2307 bfd_set_error (bfd_error_wrong_format);
2308 return FALSE;
2309 }
2310
2311 old_flags = elf_elfheader (obfd)->e_flags;
2312 new_flags = elf_elfheader (ibfd)->e_flags;
2313 if (! elf_flags_init (obfd))
2314 {
2315 /* This happens when ld starts out with a 'blank' output file. */
2316 elf_flags_init (obfd) = TRUE;
2317 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2318 }
2319 /* We don't allow linking in anything else than SH64 code, and since
2320 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2321 here as things change. */
2322 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2323 {
2324 _bfd_error_handler
2325 ("%s: does not use the SH64 64-bit ABI as previous modules do",
2326 bfd_get_filename (ibfd));
2327 bfd_set_error (bfd_error_bad_value);
2328 return FALSE;
2329 }
2330
2331 sh_elf64_copy_private_data_internal (ibfd, obfd);
2332
2333 /* I can't think of anything sane other than old_flags being EF_SH5 and
2334 that we need to preserve that. */
2335 elf_elfheader (obfd)->e_flags = old_flags;
2336
2337 return sh_elf64_set_mach_from_flags (obfd);
2338 }
2339
2340 /* Return the section that should be marked against GC for a given
2341 relocation. */
2342
2343 static asection *
2344 sh_elf64_gc_mark_hook (asection *sec,
2345 struct bfd_link_info *info,
2346 Elf_Internal_Rela *rel,
2347 struct elf_link_hash_entry *h,
2348 Elf_Internal_Sym *sym)
2349 {
2350 if (h != NULL)
2351 switch (ELF64_R_TYPE (rel->r_info))
2352 {
2353 case R_SH_GNU_VTINHERIT:
2354 case R_SH_GNU_VTENTRY:
2355 return NULL;
2356 }
2357
2358 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2359 }
2360
2361 /* Look through the relocs for a section during the first phase.
2362 Since we don't do .gots or .plts, we just need to consider the
2363 virtual table relocs for gc. */
2364
2365 static bfd_boolean
2366 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2367 asection *sec, const Elf_Internal_Rela *relocs)
2368 {
2369 Elf_Internal_Shdr *symtab_hdr;
2370 struct elf_link_hash_entry **sym_hashes;
2371 const Elf_Internal_Rela *rel;
2372 const Elf_Internal_Rela *rel_end;
2373 bfd *dynobj;
2374 bfd_vma *local_got_offsets;
2375 asection *sgot;
2376 asection *srelgot;
2377 asection *sreloc;
2378
2379 sgot = NULL;
2380 srelgot = NULL;
2381 sreloc = NULL;
2382
2383 if (bfd_link_relocatable (info))
2384 return TRUE;
2385
2386 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2387 sym_hashes = elf_sym_hashes (abfd);
2388
2389 dynobj = elf_hash_table (info)->dynobj;
2390 local_got_offsets = elf_local_got_offsets (abfd);
2391
2392 rel_end = relocs + sec->reloc_count;
2393 for (rel = relocs; rel < rel_end; rel++)
2394 {
2395 struct elf_link_hash_entry *h;
2396 unsigned long r_symndx;
2397
2398 r_symndx = ELF64_R_SYM (rel->r_info);
2399 if (r_symndx < symtab_hdr->sh_info)
2400 h = NULL;
2401 else
2402 {
2403 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2404 while (h->root.type == bfd_link_hash_indirect
2405 || h->root.type == bfd_link_hash_warning)
2406 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2407
2408 /* PR15323, ref flags aren't set for references in the same
2409 object. */
2410 h->root.non_ir_ref = 1;
2411 }
2412
2413 /* Some relocs require a global offset table. */
2414 if (dynobj == NULL)
2415 {
2416 switch (ELF64_R_TYPE (rel->r_info))
2417 {
2418 case R_SH_GOTPLT_LOW16:
2419 case R_SH_GOTPLT_MEDLOW16:
2420 case R_SH_GOTPLT_MEDHI16:
2421 case R_SH_GOTPLT_HI16:
2422 case R_SH_GOTPLT10BY4:
2423 case R_SH_GOTPLT10BY8:
2424 case R_SH_GOT_LOW16:
2425 case R_SH_GOT_MEDLOW16:
2426 case R_SH_GOT_MEDHI16:
2427 case R_SH_GOT_HI16:
2428 case R_SH_GOT10BY4:
2429 case R_SH_GOT10BY8:
2430 case R_SH_GOTOFF_LOW16:
2431 case R_SH_GOTOFF_MEDLOW16:
2432 case R_SH_GOTOFF_MEDHI16:
2433 case R_SH_GOTOFF_HI16:
2434 case R_SH_GOTPC_LOW16:
2435 case R_SH_GOTPC_MEDLOW16:
2436 case R_SH_GOTPC_MEDHI16:
2437 case R_SH_GOTPC_HI16:
2438 elf_hash_table (info)->dynobj = dynobj = abfd;
2439 if (! _bfd_elf_create_got_section (dynobj, info))
2440 return FALSE;
2441 break;
2442
2443 default:
2444 break;
2445 }
2446 }
2447
2448 switch (ELF64_R_TYPE (rel->r_info))
2449 {
2450 /* This relocation describes the C++ object vtable hierarchy.
2451 Reconstruct it for later use during GC. */
2452 case R_SH_GNU_VTINHERIT:
2453 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2454 return FALSE;
2455 break;
2456
2457 /* This relocation describes which C++ vtable entries are actually
2458 used. Record for later use during GC. */
2459 case R_SH_GNU_VTENTRY:
2460 BFD_ASSERT (h != NULL);
2461 if (h != NULL
2462 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2463 return FALSE;
2464 break;
2465
2466 force_got:
2467 case R_SH_GOT_LOW16:
2468 case R_SH_GOT_MEDLOW16:
2469 case R_SH_GOT_MEDHI16:
2470 case R_SH_GOT_HI16:
2471 case R_SH_GOT10BY4:
2472 case R_SH_GOT10BY8:
2473 /* This symbol requires a global offset table entry. */
2474
2475 if (sgot == NULL)
2476 {
2477 sgot = bfd_get_linker_section (dynobj, ".got");
2478 BFD_ASSERT (sgot != NULL);
2479 }
2480
2481 if (srelgot == NULL
2482 && (h != NULL || bfd_link_pic (info)))
2483 {
2484 srelgot = bfd_get_linker_section (dynobj, ".rela.got");
2485 if (srelgot == NULL)
2486 {
2487 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
2488 | SEC_IN_MEMORY | SEC_LINKER_CREATED
2489 | SEC_READONLY);
2490 srelgot = bfd_make_section_anyway_with_flags (dynobj,
2491 ".rela.got",
2492 flags);
2493 if (srelgot == NULL
2494 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
2495 return FALSE;
2496 }
2497 }
2498
2499 if (h != NULL)
2500 {
2501 if (h->type == STT_DATALABEL)
2502 {
2503 struct elf_sh64_link_hash_entry *hsh;
2504
2505 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2506 hsh = (struct elf_sh64_link_hash_entry *)h;
2507 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2508 break;
2509
2510 hsh->datalabel_got_offset = sgot->size;
2511 }
2512 else
2513 {
2514 if (h->got.offset != (bfd_vma) -1)
2515 {
2516 /* We have already allocated space in the .got. */
2517 break;
2518 }
2519 h->got.offset = sgot->size;
2520 }
2521
2522 /* Make sure this symbol is output as a dynamic symbol. */
2523 if (h->dynindx == -1)
2524 {
2525 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2526 return FALSE;
2527 }
2528
2529 srelgot->size += sizeof (Elf64_External_Rela);
2530 }
2531 else
2532 {
2533 /* This is a global offset table entry for a local
2534 symbol. */
2535 if (local_got_offsets == NULL)
2536 {
2537 size_t size;
2538 register unsigned int i;
2539
2540 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2541 /* Reserve space for both the datalabel and
2542 codelabel local GOT offsets. */
2543 size *= 2;
2544 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2545 if (local_got_offsets == NULL)
2546 return FALSE;
2547 elf_local_got_offsets (abfd) = local_got_offsets;
2548 for (i = 0; i < symtab_hdr->sh_info; i++)
2549 local_got_offsets[i] = (bfd_vma) -1;
2550 for (; i < 2 * symtab_hdr->sh_info; i++)
2551 local_got_offsets[i] = (bfd_vma) -1;
2552 }
2553 if ((rel->r_addend & 1) != 0)
2554 {
2555 if (local_got_offsets[symtab_hdr->sh_info
2556 + r_symndx] != (bfd_vma) -1)
2557 {
2558 /* We have already allocated space in the .got. */
2559 break;
2560 }
2561 local_got_offsets[symtab_hdr->sh_info
2562 + r_symndx] = sgot->size;
2563 }
2564 else
2565 {
2566 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2567 {
2568 /* We have already allocated space in the .got. */
2569 break;
2570 }
2571 local_got_offsets[r_symndx] = sgot->size;
2572 }
2573
2574 if (bfd_link_pic (info))
2575 {
2576 /* If we are generating a shared object, we need to
2577 output a R_SH_RELATIVE reloc so that the dynamic
2578 linker can adjust this GOT entry. */
2579 srelgot->size += sizeof (Elf64_External_Rela);
2580 }
2581 }
2582
2583 sgot->size += 8;
2584
2585 break;
2586
2587 case R_SH_GOTPLT_LOW16:
2588 case R_SH_GOTPLT_MEDLOW16:
2589 case R_SH_GOTPLT_MEDHI16:
2590 case R_SH_GOTPLT_HI16:
2591 case R_SH_GOTPLT10BY4:
2592 case R_SH_GOTPLT10BY8:
2593 /* If this is a local symbol, we resolve it directly without
2594 creating a procedure linkage table entry. */
2595
2596 if (h == NULL
2597 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2598 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2599 || ! bfd_link_pic (info)
2600 || info->symbolic
2601 || h->dynindx == -1
2602 || h->got.offset != (bfd_vma) -1)
2603 goto force_got;
2604
2605 /* Make sure this symbol is output as a dynamic symbol. */
2606 if (h->dynindx == -1)
2607 {
2608 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2609 return FALSE;
2610 }
2611
2612 h->needs_plt = 1;
2613
2614 break;
2615
2616 case R_SH_PLT_LOW16:
2617 case R_SH_PLT_MEDLOW16:
2618 case R_SH_PLT_MEDHI16:
2619 case R_SH_PLT_HI16:
2620 /* This symbol requires a procedure linkage table entry. We
2621 actually build the entry in adjust_dynamic_symbol,
2622 because this might be a case of linking PIC code which is
2623 never referenced by a dynamic object, in which case we
2624 don't need to generate a procedure linkage table entry
2625 after all. */
2626
2627 /* If this is a local symbol, we resolve it directly without
2628 creating a procedure linkage table entry. */
2629 if (h == NULL)
2630 continue;
2631
2632 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2633 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2634 break;
2635
2636 h->needs_plt = 1;
2637
2638 break;
2639
2640 case R_SH_64:
2641 case R_SH_64_PCREL:
2642 if (h != NULL)
2643 h->non_got_ref = 1;
2644
2645 /* If we are creating a shared library, and this is a reloc
2646 against a global symbol, or a non PC relative reloc
2647 against a local symbol, then we need to copy the reloc
2648 into the shared library. However, if we are linking with
2649 -Bsymbolic, we do not need to copy a reloc against a
2650 global symbol which is defined in an object we are
2651 including in the link (i.e., DEF_REGULAR is set). At
2652 this point we have not seen all the input files, so it is
2653 possible that DEF_REGULAR is not set now but will be set
2654 later (it is never cleared). We account for that
2655 possibility below by storing information in the
2656 pcrel_relocs_copied field of the hash table entry. */
2657 if (bfd_link_pic (info)
2658 && (sec->flags & SEC_ALLOC) != 0
2659 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2660 || (h != NULL
2661 && (! info->symbolic
2662 || !h->def_regular))))
2663 {
2664 /* When creating a shared object, we must copy these
2665 reloc types into the output file. We create a reloc
2666 section in dynobj and make room for this reloc. */
2667 if (sreloc == NULL)
2668 {
2669 sreloc = _bfd_elf_make_dynamic_reloc_section
2670 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
2671
2672 if (sreloc == NULL)
2673 return FALSE;
2674 }
2675
2676 sreloc->size += sizeof (Elf64_External_Rela);
2677
2678 /* If we are linking with -Bsymbolic, and this is a
2679 global symbol, we count the number of PC relative
2680 relocations we have entered for this symbol, so that
2681 we can discard them again if the symbol is later
2682 defined by a regular object. Note that this function
2683 is only called if we are using an elf_sh linker
2684 hash table, which means that h is really a pointer to
2685 an elf_sh_link_hash_entry. */
2686 if (h != NULL && info->symbolic
2687 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2688 {
2689 struct elf_sh64_link_hash_entry *eh;
2690 struct elf_sh64_pcrel_relocs_copied *p;
2691
2692 eh = (struct elf_sh64_link_hash_entry *) h;
2693
2694 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2695 if (p->section == sreloc)
2696 break;
2697
2698 if (p == NULL)
2699 {
2700 p = ((struct elf_sh64_pcrel_relocs_copied *)
2701 bfd_alloc (dynobj, sizeof *p));
2702 if (p == NULL)
2703 return FALSE;
2704 p->next = eh->pcrel_relocs_copied;
2705 eh->pcrel_relocs_copied = p;
2706 p->section = sreloc;
2707 p->count = 0;
2708 }
2709
2710 ++p->count;
2711 }
2712 }
2713
2714 break;
2715 }
2716 }
2717
2718 return TRUE;
2719 }
2720
2721 static int
2722 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2723 {
2724 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2725 return STT_DATALABEL;
2726
2727 return type;
2728 }
2729
2730 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2731 Either file can presumably exist without the other, but do not differ
2732 in elf-size-ness. How to share?
2733
2734 Hook called by the linker routine which adds symbols from an object
2735 file. We must make indirect symbols for undefined symbols marked with
2736 STT_DATALABEL, so relocations passing them will pick up that attribute
2737 and neutralize STO_SH5_ISA32 found on the symbol definition.
2738
2739 There is a problem, though: We want to fill in the hash-table entry for
2740 this symbol and signal to the caller that no further processing is
2741 needed. But we don't have the index for this hash-table entry. We
2742 rely here on that the current entry is the first hash-entry with NULL,
2743 which seems brittle. Also, iterating over the hash-table to find that
2744 entry is a linear operation on the number of symbols in this input
2745 file, and this function should take constant time, so that's not good
2746 too. Only comfort is that DataLabel references should only be found in
2747 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2748 into adding an option to elf_add_symbol_hook (preferably) for the index
2749 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2750 (not so good). */
2751
2752 static bfd_boolean
2753 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2754 Elf_Internal_Sym *sym, const char **namep,
2755 flagword *flagsp ATTRIBUTE_UNUSED,
2756 asection **secp, bfd_vma *valp)
2757 {
2758 /* We want to do this for relocatable as well as final linking. */
2759 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2760 && is_elf_hash_table (info->hash))
2761 {
2762 struct elf_link_hash_entry *h;
2763
2764 /* For relocatable links, we register the DataLabel sym in its own
2765 right, and tweak the name when it's output. Otherwise, we make
2766 an indirect symbol of it. */
2767 flagword flags
2768 = bfd_link_relocatable (info) || info->emitrelocations
2769 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2770
2771 char *dl_name
2772 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2773 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2774
2775 BFD_ASSERT (sym_hash != NULL);
2776
2777 /* Allocation may fail. */
2778 if (dl_name == NULL)
2779 return FALSE;
2780
2781 strcpy (dl_name, *namep);
2782 strcat (dl_name, DATALABEL_SUFFIX);
2783
2784 h = (struct elf_link_hash_entry *)
2785 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2786
2787 if (h == NULL)
2788 {
2789 /* No previous datalabel symbol. Make one. */
2790 struct bfd_link_hash_entry *bh = NULL;
2791 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2792
2793 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2794 flags, *secp, *valp,
2795 *namep, FALSE,
2796 bed->collect, &bh))
2797 {
2798 free (dl_name);
2799 return FALSE;
2800 }
2801
2802 h = (struct elf_link_hash_entry *) bh;
2803 h->non_elf = 0;
2804 h->type = STT_DATALABEL;
2805 }
2806 else
2807 /* If a new symbol was created, it holds the allocated name.
2808 Otherwise, we don't need it anymore and should deallocate it. */
2809 free (dl_name);
2810
2811 if (h->type != STT_DATALABEL
2812 || ((bfd_link_relocatable (info) || info->emitrelocations)
2813 && h->root.type != bfd_link_hash_undefined)
2814 || (! bfd_link_relocatable (info) && !info->emitrelocations
2815 && h->root.type != bfd_link_hash_indirect))
2816 {
2817 /* Make sure we don't get confused on invalid input. */
2818 _bfd_error_handler
2819 (_("%s: encountered datalabel symbol in input"),
2820 bfd_get_filename (abfd));
2821 bfd_set_error (bfd_error_bad_value);
2822 return FALSE;
2823 }
2824
2825 /* Now find the hash-table slot for this entry and fill it in. */
2826 while (*sym_hash != NULL)
2827 sym_hash++;
2828 *sym_hash = h;
2829
2830 /* Signal to caller to skip this symbol - we've handled it. */
2831 *namep = NULL;
2832 }
2833
2834 return TRUE;
2835 }
2836
2837 /* This hook function is called before the linker writes out a global
2838 symbol. For relocatable links, DataLabel symbols will be present in
2839 linker output. We cut off the special suffix on those symbols, so the
2840 right name appears in the output.
2841
2842 When linking and emitting relocations, there can appear global symbols
2843 that are not referenced by relocs, but rather only implicitly through
2844 DataLabel references, a relation that is not visible to the linker.
2845 Since no stripping of global symbols in done when doing such linking,
2846 we don't need to look up and make sure to emit the main symbol for each
2847 DataLabel symbol. */
2848
2849 static int
2850 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2851 const char *cname,
2852 Elf_Internal_Sym *sym,
2853 asection *input_sec ATTRIBUTE_UNUSED,
2854 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2855 {
2856 char *name = (char *) cname;
2857
2858 if (bfd_link_relocatable (info) || info->emitrelocations)
2859 {
2860 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2861 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2862 }
2863
2864 return 1;
2865 }
2866
2867 /* Set bit 0 on the entry address; it always points to SHmedia code. This
2868 is mostly for symmetry with the 32-bit format, where code can be
2869 SHcompact and we need to make a distinction to make sure execution
2870 starts in the right ISA mode. It is also convenient for a loader,
2871 which would otherwise have to set this bit when loading a TR register
2872 before jumping to the program entry. */
2873
2874 static void
2875 sh64_elf64_final_write_processing (bfd *abfd,
2876 bfd_boolean linker ATTRIBUTE_UNUSED)
2877 {
2878 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
2879 numerically, but we currently lack the infrastructure to recognize
2880 that: The entry symbol, and info whether it is numeric or a symbol
2881 name is kept private in the linker. */
2882 if (elf_elfheader (abfd)->e_type == ET_EXEC)
2883 elf_elfheader (abfd)->e_entry |= 1;
2884 }
2885
2886 /* First entry in an absolute procedure linkage table look like this. */
2887
2888 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
2889 {
2890 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
2891 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
2892 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
2893 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2894 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2895 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2896 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2897 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2898 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2899 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2900 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2901 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2902 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2903 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2904 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2905 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2906 };
2907
2908 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
2909 {
2910 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
2911 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
2912 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
2913 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2914 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2915 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2916 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2917 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2918 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2919 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2920 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2921 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2922 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2923 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2924 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2925 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2926 };
2927
2928 /* Sebsequent entries in an absolute procedure linkage table look like
2929 this. */
2930
2931 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
2932 {
2933 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
2934 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
2935 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
2936 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
2937 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
2938 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2939 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2940 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2941 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
2942 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
2943 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
2944 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2945 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2946 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2947 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2948 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2949 };
2950
2951 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
2952 {
2953 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
2954 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2955 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2956 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2957 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
2958 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2959 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2960 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2961 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
2962 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
2963 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
2964 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2965 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2966 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2967 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2968 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2969 };
2970
2971 /* Entries in a PIC procedure linkage table look like this. */
2972
2973 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
2974 {
2975 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
2976 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
2977 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
2978 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2979 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2980 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2981 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2982 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2983 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
2984 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
2985 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2986 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2987 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2988 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2989 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2990 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2991 };
2992
2993 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
2994 {
2995 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
2996 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
2997 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
2998 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2999 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3000 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3001 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3002 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3003 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3004 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
3005 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3006 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3007 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3008 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3009 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3010 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3011 };
3012
3013 static const bfd_byte *elf_sh64_plt0_entry;
3014 static const bfd_byte *elf_sh64_plt_entry;
3015 static const bfd_byte *elf_sh64_pic_plt_entry;
3016
3017 /* Create an entry in an sh ELF linker hash table. */
3018
3019 static struct bfd_hash_entry *
3020 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
3021 struct bfd_hash_table *table,
3022 const char *string)
3023 {
3024 struct elf_sh64_link_hash_entry *ret =
3025 (struct elf_sh64_link_hash_entry *) entry;
3026
3027 /* Allocate the structure if it has not already been allocated by a
3028 subclass. */
3029 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3030 ret = ((struct elf_sh64_link_hash_entry *)
3031 bfd_hash_allocate (table,
3032 sizeof (struct elf_sh64_link_hash_entry)));
3033 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3034 return (struct bfd_hash_entry *) ret;
3035
3036 /* Call the allocation method of the superclass. */
3037 ret = ((struct elf_sh64_link_hash_entry *)
3038 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3039 table, string));
3040 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3041 {
3042 ret->pcrel_relocs_copied = NULL;
3043 ret->datalabel_got_offset = (bfd_vma) -1;
3044 }
3045
3046 return (struct bfd_hash_entry *) ret;
3047 }
3048
3049 /* Create an sh64 ELF linker hash table. */
3050
3051 static struct bfd_link_hash_table *
3052 sh64_elf64_link_hash_table_create (bfd *abfd)
3053 {
3054 struct elf_link_hash_table *ret;
3055
3056 ret = (struct elf_link_hash_table *) bfd_zmalloc (sizeof (* ret));
3057 if (ret == (struct elf_link_hash_table *) NULL)
3058 return NULL;
3059
3060 if (!_bfd_elf_link_hash_table_init (ret, abfd,
3061 sh64_elf64_link_hash_newfunc,
3062 sizeof (struct elf_sh64_link_hash_entry),
3063 GENERIC_ELF_DATA))
3064 {
3065 free (ret);
3066 return NULL;
3067 }
3068
3069 return &ret->root;
3070 }
3071
3072 inline static void
3073 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
3074 {
3075 bfd_put_32 (output_bfd,
3076 bfd_get_32 (output_bfd, addr)
3077 | ((value >> 6) & 0x3fffc00),
3078 addr);
3079 bfd_put_32 (output_bfd,
3080 bfd_get_32 (output_bfd, addr + 4)
3081 | ((value << 10) & 0x3fffc00),
3082 addr + 4);
3083 }
3084
3085 inline static void
3086 movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr)
3087 {
3088 bfd_put_32 (output_bfd,
3089 bfd_get_32 (output_bfd, addr)
3090 | ((value >> 38) & 0x3fffc00),
3091 addr);
3092 bfd_put_32 (output_bfd,
3093 bfd_get_32 (output_bfd, addr + 4)
3094 | ((value >> 22) & 0x3fffc00),
3095 addr + 4);
3096 bfd_put_32 (output_bfd,
3097 bfd_get_32 (output_bfd, addr + 8)
3098 | ((value >> 6) & 0x3fffc00),
3099 addr + 8);
3100 bfd_put_32 (output_bfd,
3101 bfd_get_32 (output_bfd, addr + 12)
3102 | ((value << 10) & 0x3fffc00),
3103 addr + 12);
3104 }
3105
3106 /* Create dynamic sections when linking against a dynamic object. */
3107
3108 static bfd_boolean
3109 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3110 {
3111 flagword flags, pltflags;
3112 register asection *s;
3113 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3114 int ptralign = 0;
3115
3116 switch (bed->s->arch_size)
3117 {
3118 case 32:
3119 ptralign = 2;
3120 break;
3121
3122 case 64:
3123 ptralign = 3;
3124 break;
3125
3126 default:
3127 bfd_set_error (bfd_error_bad_value);
3128 return FALSE;
3129 }
3130
3131 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3132 .rel[a].bss sections. */
3133
3134 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3135 | SEC_LINKER_CREATED);
3136
3137 pltflags = flags;
3138 pltflags |= SEC_CODE;
3139 if (bed->plt_not_loaded)
3140 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3141 if (bed->plt_readonly)
3142 pltflags |= SEC_READONLY;
3143
3144 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
3145 if (s == NULL
3146 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3147 return FALSE;
3148
3149 if (bed->want_plt_sym)
3150 {
3151 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3152 .plt section. */
3153 struct elf_link_hash_entry *h;
3154 struct bfd_link_hash_entry *bh = NULL;
3155
3156 if (! (_bfd_generic_link_add_one_symbol
3157 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3158 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3159 return FALSE;
3160
3161 h = (struct elf_link_hash_entry *) bh;
3162 h->def_regular = 1;
3163 h->type = STT_OBJECT;
3164 elf_hash_table (info)->hplt = h;
3165
3166 if (bfd_link_pic (info)
3167 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3168 return FALSE;
3169 }
3170
3171 s = bfd_make_section_anyway_with_flags (abfd,
3172 bed->default_use_rela_p
3173 ? ".rela.plt" : ".rel.plt",
3174 flags | SEC_READONLY);
3175 if (s == NULL
3176 || ! bfd_set_section_alignment (abfd, s, ptralign))
3177 return FALSE;
3178
3179 if (! _bfd_elf_create_got_section (abfd, info))
3180 return FALSE;
3181
3182 if (bed->want_dynbss)
3183 {
3184 /* The .dynbss section is a place to put symbols which are defined
3185 by dynamic objects, are referenced by regular objects, and are
3186 not functions. We must allocate space for them in the process
3187 image and use a R_*_COPY reloc to tell the dynamic linker to
3188 initialize them at run time. The linker script puts the .dynbss
3189 section into the .bss section of the final image. */
3190 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3191 SEC_ALLOC | SEC_LINKER_CREATED);
3192 if (s == NULL)
3193 return FALSE;
3194
3195 /* The .rel[a].bss section holds copy relocs. This section is not
3196 normally needed. We need to create it here, though, so that the
3197 linker will map it to an output section. We can't just create it
3198 only if we need it, because we will not know whether we need it
3199 until we have seen all the input files, and the first time the
3200 main linker code calls BFD after examining all the input files
3201 (size_dynamic_sections) the input sections have already been
3202 mapped to the output sections. If the section turns out not to
3203 be needed, we can discard it later. We will never need this
3204 section when generating a shared object, since they do not use
3205 copy relocs. */
3206 if (! bfd_link_pic (info))
3207 {
3208 s = bfd_make_section_anyway_with_flags (abfd,
3209 (bed->default_use_rela_p
3210 ? ".rela.bss" : ".rel.bss"),
3211 flags | SEC_READONLY);
3212 if (s == NULL
3213 || ! bfd_set_section_alignment (abfd, s, ptralign))
3214 return FALSE;
3215 }
3216 }
3217
3218 return TRUE;
3219 }
3220 \f
3221 /* Adjust a symbol defined by a dynamic object and referenced by a
3222 regular object. The current definition is in some section of the
3223 dynamic object, but we're not including those sections. We have to
3224 change the definition to something the rest of the link can
3225 understand. */
3226
3227 static bfd_boolean
3228 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3229 struct elf_link_hash_entry *h)
3230 {
3231 bfd *dynobj;
3232 asection *s;
3233
3234 dynobj = elf_hash_table (info)->dynobj;
3235
3236 /* Make sure we know what is going on here. */
3237 BFD_ASSERT (dynobj != NULL
3238 && (h->needs_plt
3239 || h->u.weakdef != NULL
3240 || (h->def_dynamic
3241 && h->ref_regular
3242 && !h->def_regular)));
3243
3244 /* If this is a function, put it in the procedure linkage table. We
3245 will fill in the contents of the procedure linkage table later,
3246 when we know the address of the .got section. */
3247 if (h->type == STT_FUNC
3248 || h->needs_plt)
3249 {
3250 if (! bfd_link_pic (info)
3251 && !h->def_dynamic
3252 && !h->ref_dynamic)
3253 {
3254 /* This case can occur if we saw a PLT reloc in an input
3255 file, but the symbol was never referred to by a dynamic
3256 object. In such a case, we don't actually need to build
3257 a procedure linkage table, and we can just do a REL64
3258 reloc instead. */
3259 BFD_ASSERT (h->needs_plt);
3260 return TRUE;
3261 }
3262
3263 /* Make sure this symbol is output as a dynamic symbol. */
3264 if (h->dynindx == -1)
3265 {
3266 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3267 return FALSE;
3268 }
3269
3270 s = bfd_get_linker_section (dynobj, ".plt");
3271 BFD_ASSERT (s != NULL);
3272
3273 /* If this is the first .plt entry, make room for the special
3274 first entry. */
3275 if (s->size == 0)
3276 s->size += PLT_ENTRY_SIZE;
3277
3278 /* If this symbol is not defined in a regular file, and we are
3279 not generating a shared library, then set the symbol to this
3280 location in the .plt. This is required to make function
3281 pointers compare as equal between the normal executable and
3282 the shared library. */
3283 if (! bfd_link_pic (info)
3284 && !h->def_regular)
3285 {
3286 h->root.u.def.section = s;
3287 h->root.u.def.value = s->size;
3288 }
3289
3290 h->plt.offset = s->size;
3291
3292 /* Make room for this entry. */
3293 s->size += elf_sh64_sizeof_plt (info);
3294
3295 /* We also need to make an entry in the .got.plt section, which
3296 will be placed in the .got section by the linker script. */
3297
3298 s = bfd_get_linker_section (dynobj, ".got.plt");
3299 BFD_ASSERT (s != NULL);
3300 s->size += 8;
3301
3302 /* We also need to make an entry in the .rela.plt section. */
3303
3304 s = bfd_get_linker_section (dynobj, ".rela.plt");
3305 BFD_ASSERT (s != NULL);
3306 s->size += sizeof (Elf64_External_Rela);
3307
3308 return TRUE;
3309 }
3310
3311 /* If this is a weak symbol, and there is a real definition, the
3312 processor independent code will have arranged for us to see the
3313 real definition first, and we can just use the same value. */
3314 if (h->u.weakdef != NULL)
3315 {
3316 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3317 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3318 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3319 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3320 return TRUE;
3321 }
3322
3323 /* This is a reference to a symbol defined by a dynamic object which
3324 is not a function. */
3325
3326 /* If we are creating a shared library, we must presume that the
3327 only references to the symbol are via the global offset table.
3328 For such cases we need not do anything here; the relocations will
3329 be handled correctly by relocate_section. */
3330 if (bfd_link_pic (info))
3331 return TRUE;
3332
3333 /* If there are no references to this symbol that do not use the
3334 GOT, we don't need to generate a copy reloc. */
3335 if (!h->non_got_ref)
3336 return TRUE;
3337
3338 /* We must allocate the symbol in our .dynbss section, which will
3339 become part of the .bss section of the executable. There will be
3340 an entry for this symbol in the .dynsym section. The dynamic
3341 object will contain position independent code, so all references
3342 from the dynamic object to this symbol will go through the global
3343 offset table. The dynamic linker will use the .dynsym entry to
3344 determine the address it must put in the global offset table, so
3345 both the dynamic object and the regular object will refer to the
3346 same memory location for the variable. */
3347
3348 s = bfd_get_linker_section (dynobj, ".dynbss");
3349 BFD_ASSERT (s != NULL);
3350
3351 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3352 copy the initial value out of the dynamic object and into the
3353 runtime process image. We need to remember the offset into the
3354 .rela.bss section we are going to use. */
3355 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
3356 {
3357 asection *srel;
3358
3359 srel = bfd_get_linker_section (dynobj, ".rela.bss");
3360 BFD_ASSERT (srel != NULL);
3361 srel->size += sizeof (Elf64_External_Rela);
3362 h->needs_copy = 1;
3363 }
3364
3365 return _bfd_elf_adjust_dynamic_copy (info, h, s);
3366 }
3367
3368 /* This function is called via sh_elf_link_hash_traverse if we are
3369 creating a shared object with -Bsymbolic. It discards the space
3370 allocated to copy PC relative relocs against symbols which are
3371 defined in regular objects. We allocated space for them in the
3372 check_relocs routine, but we won't fill them in in the
3373 relocate_section routine. */
3374
3375 static bfd_boolean
3376 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3377 void *ignore ATTRIBUTE_UNUSED)
3378 {
3379 struct elf_sh64_pcrel_relocs_copied *s;
3380
3381 /* We only discard relocs for symbols defined in a regular object. */
3382 if (!h->root.def_regular)
3383 return TRUE;
3384
3385 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3386 s->section->size -= s->count * sizeof (Elf64_External_Rela);
3387
3388 return TRUE;
3389 }
3390
3391 /* Set the sizes of the dynamic sections. */
3392
3393 static bfd_boolean
3394 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3395 struct bfd_link_info *info)
3396 {
3397 bfd *dynobj;
3398 asection *s;
3399 bfd_boolean plt;
3400 bfd_boolean relocs;
3401 bfd_boolean reltext;
3402
3403 dynobj = elf_hash_table (info)->dynobj;
3404 BFD_ASSERT (dynobj != NULL);
3405
3406 if (elf_hash_table (info)->dynamic_sections_created)
3407 {
3408 /* Set the contents of the .interp section to the interpreter. */
3409 if (bfd_link_executable (info) && !info->nointerp)
3410 {
3411 s = bfd_get_linker_section (dynobj, ".interp");
3412 BFD_ASSERT (s != NULL);
3413 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3414 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3415 }
3416 }
3417 else
3418 {
3419 /* We may have created entries in the .rela.got section.
3420 However, if we are not creating the dynamic sections, we will
3421 not actually use these entries. Reset the size of .rela.got,
3422 which will cause it to get stripped from the output file
3423 below. */
3424 s = bfd_get_linker_section (dynobj, ".rela.got");
3425 if (s != NULL)
3426 s->size = 0;
3427 }
3428
3429 /* If this is a -Bsymbolic shared link, then we need to discard all
3430 PC relative relocs against symbols defined in a regular object.
3431 We allocated space for them in the check_relocs routine, but we
3432 will not fill them in in the relocate_section routine. */
3433 if (bfd_link_pic (info) && info->symbolic)
3434 sh64_elf64_link_hash_traverse (elf_hash_table (info),
3435 sh64_elf64_discard_copies, NULL);
3436
3437 /* The check_relocs and adjust_dynamic_symbol entry points have
3438 determined the sizes of the various dynamic sections. Allocate
3439 memory for them. */
3440 plt = FALSE;
3441 relocs = FALSE;
3442 reltext = FALSE;
3443 for (s = dynobj->sections; s != NULL; s = s->next)
3444 {
3445 const char *name;
3446
3447 if ((s->flags & SEC_LINKER_CREATED) == 0)
3448 continue;
3449
3450 /* It's OK to base decisions on the section name, because none
3451 of the dynobj section names depend upon the input files. */
3452 name = bfd_get_section_name (dynobj, s);
3453
3454 if (strcmp (name, ".plt") == 0)
3455 {
3456 /* Remember whether there is a PLT. */
3457 plt = s->size != 0;
3458 }
3459 else if (CONST_STRNEQ (name, ".rela"))
3460 {
3461 if (s->size != 0)
3462 {
3463 asection *target;
3464
3465 /* Remember whether there are any reloc sections other
3466 than .rela.plt. */
3467 if (strcmp (name, ".rela.plt") != 0)
3468 {
3469 const char *outname;
3470
3471 relocs = TRUE;
3472
3473 /* If this relocation section applies to a read only
3474 section, then we probably need a DT_TEXTREL
3475 entry. The entries in the .rela.plt section
3476 really apply to the .got section, which we
3477 created ourselves and so know is not readonly. */
3478 outname = bfd_get_section_name (output_bfd,
3479 s->output_section);
3480 target = bfd_get_section_by_name (output_bfd, outname + 5);
3481 if (target != NULL
3482 && (target->flags & SEC_READONLY) != 0
3483 && (target->flags & SEC_ALLOC) != 0)
3484 reltext = TRUE;
3485 }
3486
3487 /* We use the reloc_count field as a counter if we need
3488 to copy relocs into the output file. */
3489 s->reloc_count = 0;
3490 }
3491 }
3492 else if (! CONST_STRNEQ (name, ".got")
3493 && strcmp (name, ".dynbss") != 0)
3494 {
3495 /* It's not one of our sections, so don't allocate space. */
3496 continue;
3497 }
3498
3499 if (s->size == 0)
3500 {
3501 /* If we don't need this section, strip it from the
3502 output file. This is mostly to handle .rela.bss and
3503 .rela.plt. We must create both sections in
3504 create_dynamic_sections, because they must be created
3505 before the linker maps input sections to output
3506 sections. The linker does that before
3507 adjust_dynamic_symbol is called, and it is that
3508 function which decides whether anything needs to go
3509 into these sections. */
3510 s->flags |= SEC_EXCLUDE;
3511 continue;
3512 }
3513
3514 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3515 continue;
3516
3517 /* Allocate memory for the section contents. */
3518 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3519 if (s->contents == NULL)
3520 return FALSE;
3521 }
3522
3523 if (elf_hash_table (info)->dynamic_sections_created)
3524 {
3525 /* Add some entries to the .dynamic section. We fill in the
3526 values later, in sh64_elf64_finish_dynamic_sections, but we
3527 must add the entries now so that we get the correct size for
3528 the .dynamic section. The DT_DEBUG entry is filled in by the
3529 dynamic linker and used by the debugger. */
3530 if (bfd_link_executable (info))
3531 {
3532 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3533 return FALSE;
3534 }
3535
3536 if (plt)
3537 {
3538 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3539 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3540 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3541 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3542 return FALSE;
3543 }
3544
3545 if (relocs)
3546 {
3547 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3548 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3549 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3550 sizeof (Elf64_External_Rela)))
3551 return FALSE;
3552 }
3553
3554 if (reltext)
3555 {
3556 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3557 return FALSE;
3558 }
3559 }
3560
3561 return TRUE;
3562 }
3563
3564 /* Finish up dynamic symbol handling. We set the contents of various
3565 dynamic sections here. */
3566
3567 static bfd_boolean
3568 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3569 struct bfd_link_info *info,
3570 struct elf_link_hash_entry *h,
3571 Elf_Internal_Sym *sym)
3572 {
3573 bfd *dynobj;
3574
3575 dynobj = elf_hash_table (info)->dynobj;
3576
3577 if (h->plt.offset != (bfd_vma) -1)
3578 {
3579 asection *splt;
3580 asection *sgot;
3581 asection *srel;
3582
3583 bfd_vma plt_index;
3584 bfd_vma got_offset;
3585 Elf_Internal_Rela rel;
3586 bfd_byte *loc;
3587
3588 /* This symbol has an entry in the procedure linkage table. Set
3589 it up. */
3590
3591 BFD_ASSERT (h->dynindx != -1);
3592
3593 splt = bfd_get_linker_section (dynobj, ".plt");
3594 sgot = bfd_get_linker_section (dynobj, ".got.plt");
3595 srel = bfd_get_linker_section (dynobj, ".rela.plt");
3596 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3597
3598 /* Get the index in the procedure linkage table which
3599 corresponds to this symbol. This is the index of this symbol
3600 in all the symbols for which we are making plt entries. The
3601 first entry in the procedure linkage table is reserved. */
3602 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3603
3604 /* Get the offset into the .got table of the entry that
3605 corresponds to this function. Each .got entry is 8 bytes.
3606 The first three are reserved. */
3607 got_offset = (plt_index + 3) * 8;
3608
3609 if (bfd_link_pic (info))
3610 got_offset -= GOT_BIAS;
3611
3612 /* Fill in the entry in the procedure linkage table. */
3613 if (! bfd_link_pic (info))
3614 {
3615 if (elf_sh64_plt_entry == NULL)
3616 {
3617 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3618 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3619 }
3620 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3621 elf_sh64_sizeof_plt (info));
3622 movi_3shori_putval (output_bfd,
3623 (sgot->output_section->vma
3624 + sgot->output_offset
3625 + got_offset),
3626 (splt->contents + h->plt.offset
3627 + elf_sh64_plt_symbol_offset (info)));
3628
3629 /* Set bottom bit because its for a branch to SHmedia */
3630 movi_shori_putval (output_bfd,
3631 -(h->plt.offset
3632 + elf_sh64_plt_plt0_offset (info) + 8)
3633 | 1,
3634 (splt->contents + h->plt.offset
3635 + elf_sh64_plt_plt0_offset (info)));
3636 }
3637 else
3638 {
3639 if (elf_sh64_pic_plt_entry == NULL)
3640 {
3641 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3642 elf_sh64_pic_plt_entry_be :
3643 elf_sh64_pic_plt_entry_le);
3644 }
3645 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3646 elf_sh64_sizeof_plt (info));
3647 movi_shori_putval (output_bfd, got_offset,
3648 (splt->contents + h->plt.offset
3649 + elf_sh64_plt_symbol_offset (info)));
3650 }
3651
3652 if (bfd_link_pic (info))
3653 got_offset += GOT_BIAS;
3654
3655 movi_shori_putval (output_bfd,
3656 plt_index * sizeof (Elf64_External_Rela),
3657 (splt->contents + h->plt.offset
3658 + elf_sh64_plt_reloc_offset (info)));
3659
3660 /* Fill in the entry in the global offset table. */
3661 bfd_put_64 (output_bfd,
3662 (splt->output_section->vma
3663 + splt->output_offset
3664 + h->plt.offset
3665 + elf_sh64_plt_temp_offset (info)),
3666 sgot->contents + got_offset);
3667
3668 /* Fill in the entry in the .rela.plt section. */
3669 rel.r_offset = (sgot->output_section->vma
3670 + sgot->output_offset
3671 + got_offset);
3672 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3673 rel.r_addend = 0;
3674 rel.r_addend = GOT_BIAS;
3675 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3676 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3677
3678 if (!h->def_regular)
3679 {
3680 /* Mark the symbol as undefined, rather than as defined in
3681 the .plt section. Leave the value alone. */
3682 sym->st_shndx = SHN_UNDEF;
3683 }
3684 }
3685
3686 if (h->got.offset != (bfd_vma) -1)
3687 {
3688 asection *sgot;
3689 asection *srel;
3690 Elf_Internal_Rela rel;
3691 bfd_byte *loc;
3692
3693 /* This symbol has an entry in the global offset table. Set it
3694 up. */
3695
3696 sgot = bfd_get_linker_section (dynobj, ".got");
3697 srel = bfd_get_linker_section (dynobj, ".rela.got");
3698 BFD_ASSERT (sgot != NULL && srel != NULL);
3699
3700 rel.r_offset = (sgot->output_section->vma
3701 + sgot->output_offset
3702 + (h->got.offset &~ 1));
3703
3704 /* If this is a -Bsymbolic link, and the symbol is defined
3705 locally, we just want to emit a RELATIVE reloc. Likewise if
3706 the symbol was forced to be local because of a version file.
3707 The entry in the global offset table will already have been
3708 initialized in the relocate_section function. */
3709 if (bfd_link_pic (info)
3710 && (info->symbolic || h->dynindx == -1)
3711 && h->def_regular)
3712 {
3713 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3714 rel.r_addend = (h->root.u.def.value
3715 + h->root.u.def.section->output_section->vma
3716 + h->root.u.def.section->output_offset);
3717 }
3718 else
3719 {
3720 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3721 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3722 rel.r_addend = 0;
3723 }
3724
3725 loc = srel->contents;
3726 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3727 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3728 }
3729
3730 if (h->needs_copy)
3731 {
3732 asection *s;
3733 Elf_Internal_Rela rel;
3734 bfd_byte *loc;
3735
3736 /* This symbol needs a copy reloc. Set it up. */
3737
3738 BFD_ASSERT (h->dynindx != -1
3739 && (h->root.type == bfd_link_hash_defined
3740 || h->root.type == bfd_link_hash_defweak));
3741
3742 s = bfd_get_linker_section (dynobj, ".rela.bss");
3743 BFD_ASSERT (s != NULL);
3744
3745 rel.r_offset = (h->root.u.def.value
3746 + h->root.u.def.section->output_section->vma
3747 + h->root.u.def.section->output_offset);
3748 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3749 rel.r_addend = 0;
3750 loc = s->contents;
3751 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3752 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3753 }
3754
3755 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3756 if (h == elf_hash_table (info)->hdynamic
3757 || h == elf_hash_table (info)->hgot)
3758 sym->st_shndx = SHN_ABS;
3759
3760 return TRUE;
3761 }
3762
3763 /* Finish up the dynamic sections. */
3764
3765 static bfd_boolean
3766 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3767 struct bfd_link_info *info)
3768 {
3769 bfd *dynobj;
3770 asection *sgot;
3771 asection *sdyn;
3772
3773 dynobj = elf_hash_table (info)->dynobj;
3774
3775 sgot = bfd_get_linker_section (dynobj, ".got.plt");
3776 BFD_ASSERT (sgot != NULL);
3777 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3778
3779 if (elf_hash_table (info)->dynamic_sections_created)
3780 {
3781 asection *splt;
3782 Elf64_External_Dyn *dyncon, *dynconend;
3783
3784 BFD_ASSERT (sdyn != NULL);
3785
3786 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3787 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3788 for (; dyncon < dynconend; dyncon++)
3789 {
3790 Elf_Internal_Dyn dyn;
3791 const char *name;
3792 asection *s;
3793 struct elf_link_hash_entry *h;
3794
3795 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3796
3797 switch (dyn.d_tag)
3798 {
3799 default:
3800 break;
3801
3802 case DT_INIT:
3803 name = info->init_function;
3804 goto get_sym;
3805
3806 case DT_FINI:
3807 name = info->fini_function;
3808 get_sym:
3809 if (dyn.d_un.d_val != 0)
3810 {
3811 h = elf_link_hash_lookup (elf_hash_table (info), name,
3812 FALSE, FALSE, TRUE);
3813 if (h != NULL && (h->other & STO_SH5_ISA32))
3814 {
3815 dyn.d_un.d_val |= 1;
3816 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3817 }
3818 }
3819 break;
3820
3821 case DT_PLTGOT:
3822 name = ".got.plt";
3823 goto get_vma;
3824
3825 case DT_JMPREL:
3826 name = ".rela.plt";
3827 get_vma:
3828 s = bfd_get_linker_section (dynobj, name);
3829 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3830 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3831 break;
3832
3833 case DT_PLTRELSZ:
3834 s = bfd_get_linker_section (dynobj, ".rela.plt");
3835 dyn.d_un.d_val = s->size;
3836 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3837 break;
3838
3839 case DT_RELASZ:
3840 /* My reading of the SVR4 ABI indicates that the
3841 procedure linkage table relocs (DT_JMPREL) should be
3842 included in the overall relocs (DT_RELA). This is
3843 what Solaris does. However, UnixWare can not handle
3844 that case. Therefore, we override the DT_RELASZ entry
3845 here to make it not include the JMPREL relocs. Since
3846 the linker script arranges for .rela.plt to follow all
3847 other relocation sections, we don't have to worry
3848 about changing the DT_RELA entry. */
3849 s = bfd_get_linker_section (dynobj, ".rela.plt");
3850 if (s != NULL)
3851 dyn.d_un.d_val -= s->size;
3852 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3853 break;
3854 }
3855 }
3856
3857 /* Fill in the first entry in the procedure linkage table. */
3858 splt = bfd_get_linker_section (dynobj, ".plt");
3859 if (splt && splt->size > 0)
3860 {
3861 if (bfd_link_pic (info))
3862 {
3863 if (elf_sh64_pic_plt_entry == NULL)
3864 {
3865 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3866 elf_sh64_pic_plt_entry_be :
3867 elf_sh64_pic_plt_entry_le);
3868 }
3869 memcpy (splt->contents, elf_sh64_pic_plt_entry,
3870 elf_sh64_sizeof_plt (info));
3871 }
3872 else
3873 {
3874 if (elf_sh64_plt0_entry == NULL)
3875 {
3876 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
3877 elf_sh64_plt0_entry_be :
3878 elf_sh64_plt0_entry_le);
3879 }
3880 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
3881 movi_3shori_putval (output_bfd,
3882 sgot->output_section->vma
3883 + sgot->output_offset,
3884 splt->contents
3885 + elf_sh64_plt0_gotplt_offset (info));
3886 }
3887
3888 /* UnixWare sets the entsize of .plt to 8, although that doesn't
3889 really seem like the right value. */
3890 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
3891 }
3892 }
3893
3894 /* Fill in the first three entries in the global offset table. */
3895 if (sgot->size > 0)
3896 {
3897 if (sdyn == NULL)
3898 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
3899 else
3900 bfd_put_64 (output_bfd,
3901 sdyn->output_section->vma + sdyn->output_offset,
3902 sgot->contents);
3903 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3904 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
3905 }
3906
3907 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
3908
3909 return TRUE;
3910 }
3911
3912 /* Merge non visibility st_other attribute when the symbol comes from
3913 a dynamic object. */
3914 static void
3915 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
3916 const Elf_Internal_Sym *isym,
3917 bfd_boolean definition,
3918 bfd_boolean dynamic ATTRIBUTE_UNUSED)
3919 {
3920 if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0)
3921 {
3922 unsigned char other;
3923
3924 /* Take the balance of OTHER from the definition. */
3925 other = (definition ? isym->st_other : h->other);
3926 other &= ~ ELF_ST_VISIBILITY (-1);
3927 h->other = other | ELF_ST_VISIBILITY (h->other);
3928 }
3929
3930 return;
3931 }
3932
3933 static const struct bfd_elf_special_section sh64_elf64_special_sections[]=
3934 {
3935 { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 },
3936 { NULL, 0, 0, 0, 0 }
3937 };
3938
3939 #define TARGET_BIG_SYM sh64_elf64_vec
3940 #define TARGET_BIG_NAME "elf64-sh64"
3941 #define TARGET_LITTLE_SYM sh64_elf64_le_vec
3942 #define TARGET_LITTLE_NAME "elf64-sh64l"
3943 #define ELF_ARCH bfd_arch_sh
3944 #define ELF_MACHINE_CODE EM_SH
3945 #define ELF_MAXPAGESIZE 128
3946
3947 #define elf_symbol_leading_char '_'
3948
3949 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
3950 #define bfd_elf64_bfd_reloc_name_lookup \
3951 sh_elf64_reloc_name_lookup
3952 #define elf_info_to_howto sh_elf64_info_to_howto
3953
3954 /* Note: there's no relaxation at present. */
3955
3956 #define elf_backend_relocate_section sh_elf64_relocate_section
3957 #define bfd_elf64_bfd_get_relocated_section_contents \
3958 sh_elf64_get_relocated_section_contents
3959 #define elf_backend_object_p sh_elf64_set_mach_from_flags
3960 #define bfd_elf64_bfd_set_private_flags \
3961 sh_elf64_set_private_flags
3962 #define bfd_elf64_bfd_copy_private_bfd_data \
3963 sh_elf64_copy_private_data
3964 #define bfd_elf64_bfd_merge_private_bfd_data \
3965 sh_elf64_merge_private_data
3966 #define elf_backend_fake_sections sh64_elf64_fake_sections
3967
3968 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
3969 #define elf_backend_check_relocs sh_elf64_check_relocs
3970
3971 #define elf_backend_can_gc_sections 1
3972
3973 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
3974
3975 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
3976
3977 #define elf_backend_link_output_symbol_hook \
3978 sh64_elf64_link_output_symbol_hook
3979
3980 #define elf_backend_merge_symbol_attribute \
3981 sh64_elf64_merge_symbol_attribute
3982
3983 #define elf_backend_final_write_processing \
3984 sh64_elf64_final_write_processing
3985
3986 #define elf_backend_create_dynamic_sections \
3987 sh64_elf64_create_dynamic_sections
3988 #define bfd_elf64_bfd_link_hash_table_create \
3989 sh64_elf64_link_hash_table_create
3990 #define elf_backend_adjust_dynamic_symbol \
3991 sh64_elf64_adjust_dynamic_symbol
3992 #define elf_backend_size_dynamic_sections \
3993 sh64_elf64_size_dynamic_sections
3994 #define elf_backend_omit_section_dynsym \
3995 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
3996 #define elf_backend_finish_dynamic_symbol \
3997 sh64_elf64_finish_dynamic_symbol
3998 #define elf_backend_finish_dynamic_sections \
3999 sh64_elf64_finish_dynamic_sections
4000 #define elf_backend_special_sections sh64_elf64_special_sections
4001
4002 #define elf_backend_want_got_plt 1
4003 #define elf_backend_plt_readonly 1
4004 #define elf_backend_want_plt_sym 0
4005 #define elf_backend_got_header_size 24
4006
4007 #include "elf64-target.h"
4008
4009 /* NetBSD support. */
4010 #undef TARGET_BIG_SYM
4011 #define TARGET_BIG_SYM sh64_elf64_nbsd_vec
4012 #undef TARGET_BIG_NAME
4013 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
4014 #undef TARGET_LITTLE_SYM
4015 #define TARGET_LITTLE_SYM sh64_elf64_nbsd_le_vec
4016 #undef TARGET_LITTLE_NAME
4017 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
4018 #undef ELF_MAXPAGESIZE
4019 #define ELF_MAXPAGESIZE 0x10000
4020 #undef elf_symbol_leading_char
4021 #define elf_symbol_leading_char 0
4022
4023 #define elf64_bed elf64_sh64_nbsd_bed
4024
4025 #include "elf64-target.h"
4026
4027 /* Linux support. */
4028 #undef TARGET_BIG_SYM
4029 #define TARGET_BIG_SYM sh64_elf64_linux_be_vec
4030 #undef TARGET_BIG_NAME
4031 #define TARGET_BIG_NAME "elf64-sh64big-linux"
4032 #undef TARGET_LITTLE_SYM
4033 #define TARGET_LITTLE_SYM sh64_elf64_linux_vec
4034 #undef TARGET_LITTLE_NAME
4035 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
4036 #undef elf64_bed
4037 #define elf64_bed elf64_sh64_linux_bed
4038
4039 #include "elf64-target.h"