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[deliverable/binutils-gdb.git] / bfd / elf64-sh64.c
1 /* SuperH SH64-specific support for 64-bit ELF
2 Copyright (C) 2000-2014 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) (info->shared ? 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 0, /* 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 (info->relocatable)
1520 {
1521 /* This is a relocatable link. We don't have to change
1522 anything, unless the reloc is against a section symbol,
1523 in which case we have to adjust according to where the
1524 section symbol winds up in the output section. */
1525 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1526 goto final_link_relocate;
1527
1528 continue;
1529 }
1530 else if (! howto->partial_inplace)
1531 {
1532 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1533 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0);
1534 }
1535 else if ((sec->flags & SEC_MERGE)
1536 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1537 {
1538 asection *msec;
1539
1540 if (howto->rightshift || howto->src_mask != 0xffffffff)
1541 {
1542 (*_bfd_error_handler)
1543 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
1544 input_bfd, input_section,
1545 (long) rel->r_offset, howto->name);
1546 return FALSE;
1547 }
1548
1549 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1550 msec = sec;
1551 addend =
1552 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1553 - relocation;
1554 addend += msec->output_section->vma + msec->output_offset;
1555 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1556 addend = 0;
1557 }
1558 }
1559 else
1560 {
1561 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1562
1563 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1564 while (h->root.type == bfd_link_hash_indirect
1565 || h->root.type == bfd_link_hash_warning)
1566 {
1567 /* If the reference passes a symbol marked with
1568 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1569 doesn't count. */
1570 seen_stt_datalabel |= h->type == STT_DATALABEL;
1571 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1572 }
1573
1574 if (h->root.type == bfd_link_hash_defined
1575 || h->root.type == bfd_link_hash_defweak)
1576 {
1577 sec = h->root.u.def.section;
1578 /* In these cases, we don't need the relocation value.
1579 We check specially because in some obscure cases
1580 sec->output_section will be NULL. */
1581 if (r_type == R_SH_GOTPC_LOW16
1582 || r_type == R_SH_GOTPC_MEDLOW16
1583 || r_type == R_SH_GOTPC_MEDHI16
1584 || r_type == R_SH_GOTPC_HI16
1585 || ((r_type == R_SH_PLT_LOW16
1586 || r_type == R_SH_PLT_MEDLOW16
1587 || r_type == R_SH_PLT_MEDHI16
1588 || r_type == R_SH_PLT_HI16)
1589 && h->plt.offset != (bfd_vma) -1)
1590 || ((r_type == R_SH_GOT_LOW16
1591 || r_type == R_SH_GOT_MEDLOW16
1592 || r_type == R_SH_GOT_MEDHI16
1593 || r_type == R_SH_GOT_HI16)
1594 && elf_hash_table (info)->dynamic_sections_created
1595 && (! info->shared
1596 || (! info->symbolic && h->dynindx != -1)
1597 || !h->def_regular))
1598 /* The cases above are those in which relocation is
1599 overwritten in the switch block below. The cases
1600 below are those in which we must defer relocation
1601 to run-time, because we can't resolve absolute
1602 addresses when creating a shared library. */
1603 || (info->shared
1604 && ((! info->symbolic && h->dynindx != -1)
1605 || !h->def_regular)
1606 && ((r_type == R_SH_64
1607 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1608 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1609 || r_type == R_SH_64_PCREL)
1610 && ((input_section->flags & SEC_ALLOC) != 0
1611 /* DWARF will emit R_SH_DIR32 relocations in its
1612 sections against symbols defined externally
1613 in shared libraries. We can't do anything
1614 with them here. */
1615 || (input_section->flags & SEC_DEBUGGING) != 0))
1616 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1617 sections because such sections are not SEC_ALLOC and
1618 thus ld.so will not process them. */
1619 || (sec->output_section == NULL
1620 && ((input_section->flags & SEC_DEBUGGING) != 0
1621 && h->def_dynamic)))
1622 ;
1623 else if (sec->output_section != NULL)
1624 relocation = ((h->root.u.def.value
1625 + sec->output_section->vma
1626 + sec->output_offset)
1627 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1628 symbol value, unless we've seen
1629 STT_DATALABEL on the way to it. */
1630 | ((h->other & STO_SH5_ISA32) != 0
1631 && ! seen_stt_datalabel));
1632 else if (!info->relocatable
1633 && (_bfd_elf_section_offset (output_bfd, info,
1634 input_section,
1635 rel->r_offset)
1636 != (bfd_vma) -1))
1637 {
1638 (*_bfd_error_handler)
1639 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
1640 input_bfd,
1641 input_section,
1642 (long) rel->r_offset,
1643 howto->name,
1644 h->root.root.string);
1645 }
1646 }
1647 else if (h->root.type == bfd_link_hash_undefweak)
1648 ;
1649 else if (info->unresolved_syms_in_objects == RM_IGNORE
1650 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1651 ;
1652 else if (!info->relocatable)
1653 {
1654 if (! ((*info->callbacks->undefined_symbol)
1655 (info, h->root.root.string, input_bfd,
1656 input_section, rel->r_offset,
1657 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1658 || ELF_ST_VISIBILITY (h->other)))))
1659 return FALSE;
1660 }
1661 }
1662
1663 if (sec != NULL && discarded_section (sec))
1664 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1665 rel, 1, relend, howto, 0, contents);
1666
1667 if (info->relocatable)
1668 continue;
1669
1670 disp = (relocation
1671 - input_section->output_section->vma
1672 - input_section->output_offset
1673 - rel->r_offset);
1674 dropped = 0;
1675 switch ((int)r_type)
1676 {
1677 case R_SH_PT_16: dropped = disp & 2; break;
1678 case R_SH_DIR10SW: dropped = disp & 1; break;
1679 case R_SH_DIR10SL: dropped = disp & 3; break;
1680 case R_SH_DIR10SQ: dropped = disp & 7; break;
1681 }
1682 if (dropped != 0)
1683 {
1684 (*_bfd_error_handler)
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 (info->shared
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 || ! info->shared
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 || (info->shared
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 (info->shared)
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 if (! ((*info->callbacks->reloc_overflow)
2085 (info, (h ? &h->root : NULL), name, howto->name,
2086 (bfd_vma) 0, input_bfd, input_section,
2087 rel->r_offset)))
2088 return FALSE;
2089 }
2090 break;
2091 }
2092 }
2093 }
2094
2095 return TRUE;
2096 }
2097
2098 /* This is a version of bfd_generic_get_relocated_section_contents
2099 that uses sh_elf64_relocate_section.
2100
2101 See sh_elf_relocate_section in elf32-sh.c for the original. */
2102
2103 static bfd_byte *
2104 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2105 struct bfd_link_info *link_info,
2106 struct bfd_link_order *link_order,
2107 bfd_byte *data,
2108 bfd_boolean relocatable,
2109 asymbol **symbols)
2110 {
2111 Elf_Internal_Shdr *symtab_hdr;
2112 asection *input_section = link_order->u.indirect.section;
2113 bfd *input_bfd = input_section->owner;
2114 asection **sections = NULL;
2115 Elf_Internal_Rela *internal_relocs = NULL;
2116 Elf_Internal_Sym *isymbuf = NULL;
2117
2118 /* We only need to handle the case of relaxing, or of having a
2119 particular set of section contents, specially. */
2120 if (relocatable
2121 || elf_section_data (input_section)->this_hdr.contents == NULL)
2122 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2123 link_order, data,
2124 relocatable,
2125 symbols);
2126
2127 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2128
2129 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2130 input_section->size);
2131
2132 if ((input_section->flags & SEC_RELOC) != 0
2133 && input_section->reloc_count > 0)
2134 {
2135 Elf_Internal_Sym *isymp;
2136 Elf_Internal_Sym *isymend;
2137 asection **secpp;
2138
2139 /* Read this BFD's local symbols. */
2140 if (symtab_hdr->sh_info != 0)
2141 {
2142 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2143 if (isymbuf == NULL)
2144 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2145 symtab_hdr->sh_info, 0,
2146 NULL, NULL, NULL);
2147 if (isymbuf == NULL)
2148 goto error_return;
2149 }
2150
2151 internal_relocs = (_bfd_elf_link_read_relocs
2152 (input_bfd, input_section, NULL,
2153 (Elf_Internal_Rela *) NULL, FALSE));
2154 if (internal_relocs == NULL)
2155 goto error_return;
2156
2157 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2158 * sizeof (asection *));
2159 if (sections == NULL && symtab_hdr->sh_info > 0)
2160 goto error_return;
2161
2162 secpp = sections;
2163 isymend = isymbuf + symtab_hdr->sh_info;
2164 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2165 {
2166 asection *isec;
2167
2168 if (isymp->st_shndx == SHN_UNDEF)
2169 isec = bfd_und_section_ptr;
2170 else if (isymp->st_shndx == SHN_ABS)
2171 isec = bfd_abs_section_ptr;
2172 else if (isymp->st_shndx == SHN_COMMON)
2173 isec = bfd_com_section_ptr;
2174 else
2175 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2176
2177 *secpp = isec;
2178 }
2179
2180 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2181 input_section, data, internal_relocs,
2182 isymbuf, sections))
2183 goto error_return;
2184
2185 if (sections != NULL)
2186 free (sections);
2187 if (internal_relocs != elf_section_data (input_section)->relocs)
2188 free (internal_relocs);
2189 if (isymbuf != NULL
2190 && (unsigned char *) isymbuf != symtab_hdr->contents)
2191 free (isymbuf);
2192 }
2193
2194 return data;
2195
2196 error_return:
2197 if (sections != NULL)
2198 free (sections);
2199 if (internal_relocs != NULL
2200 && internal_relocs != elf_section_data (input_section)->relocs)
2201 free (internal_relocs);
2202 if (isymbuf != NULL
2203 && (unsigned char *) isymbuf != symtab_hdr->contents)
2204 free (isymbuf);
2205 return NULL;
2206 }
2207
2208 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2209
2210 static bfd_boolean
2211 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2212 Elf_Internal_Shdr *elf_section_hdr,
2213 asection *asect)
2214 {
2215 /* Code sections can only contain SH64 code, so mark them as such. */
2216 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2217 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2218
2219 return TRUE;
2220 }
2221
2222 static bfd_boolean
2223 sh_elf64_set_mach_from_flags (bfd *abfd)
2224 {
2225 flagword flags = elf_elfheader (abfd)->e_flags;
2226
2227 switch (flags & EF_SH_MACH_MASK)
2228 {
2229 case EF_SH5:
2230 /* Just one, but keep the switch construct to make additions easy. */
2231 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2232 break;
2233
2234 default:
2235 bfd_set_error (bfd_error_wrong_format);
2236 return FALSE;
2237 }
2238 return TRUE;
2239 }
2240
2241 /* Function to keep SH64 specific file flags.
2242
2243 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2244
2245 static bfd_boolean
2246 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2247 {
2248 BFD_ASSERT (! elf_flags_init (abfd)
2249 || elf_elfheader (abfd)->e_flags == flags);
2250
2251 elf_elfheader (abfd)->e_flags = flags;
2252 elf_flags_init (abfd) = TRUE;
2253 return sh_elf64_set_mach_from_flags (abfd);
2254 }
2255
2256 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2257 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2258
2259 static bfd_boolean
2260 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2261 {
2262 Elf_Internal_Shdr **o_shdrp;
2263 asection *isec;
2264 asection *osec;
2265
2266 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2267 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2268 return TRUE;
2269
2270 o_shdrp = elf_elfsections (obfd);
2271 for (osec = obfd->sections; osec; osec = osec->next)
2272 {
2273 int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx;
2274 for (isec = ibfd->sections; isec; isec = isec->next)
2275 {
2276 if (strcmp (osec->name, isec->name) == 0)
2277 {
2278 /* Note that we're not disallowing mixing data and code. */
2279 if ((elf_section_data (isec)->this_hdr.sh_flags
2280 & SHF_SH5_ISA32) != 0)
2281 o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32;
2282 break;
2283 }
2284 }
2285 }
2286
2287 /* Copy object attributes. */
2288 _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2289
2290 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2291 }
2292
2293 static bfd_boolean
2294 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2295 {
2296 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2297 }
2298
2299 static bfd_boolean
2300 sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd)
2301 {
2302 flagword old_flags, new_flags;
2303
2304 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
2305 return FALSE;
2306
2307 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2308 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2309 return TRUE;
2310
2311 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2312 {
2313 const char *msg;
2314
2315 if (bfd_get_arch_size (ibfd) == 32
2316 && bfd_get_arch_size (obfd) == 64)
2317 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
2318 else if (bfd_get_arch_size (ibfd) == 64
2319 && bfd_get_arch_size (obfd) == 32)
2320 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
2321 else
2322 msg = _("%s: object size does not match that of target %s");
2323
2324 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
2325 bfd_get_filename (obfd));
2326 bfd_set_error (bfd_error_wrong_format);
2327 return FALSE;
2328 }
2329
2330 old_flags = elf_elfheader (obfd)->e_flags;
2331 new_flags = elf_elfheader (ibfd)->e_flags;
2332 if (! elf_flags_init (obfd))
2333 {
2334 /* This happens when ld starts out with a 'blank' output file. */
2335 elf_flags_init (obfd) = TRUE;
2336 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2337 }
2338 /* We don't allow linking in anything else than SH64 code, and since
2339 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2340 here as things change. */
2341 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2342 {
2343 (*_bfd_error_handler)
2344 ("%s: does not use the SH64 64-bit ABI as previous modules do",
2345 bfd_get_filename (ibfd));
2346 bfd_set_error (bfd_error_bad_value);
2347 return FALSE;
2348 }
2349
2350 sh_elf64_copy_private_data_internal (ibfd, obfd);
2351
2352 /* I can't think of anything sane other than old_flags being EF_SH5 and
2353 that we need to preserve that. */
2354 elf_elfheader (obfd)->e_flags = old_flags;
2355
2356 return sh_elf64_set_mach_from_flags (obfd);
2357 }
2358
2359 /* Return the section that should be marked against GC for a given
2360 relocation. */
2361
2362 static asection *
2363 sh_elf64_gc_mark_hook (asection *sec,
2364 struct bfd_link_info *info,
2365 Elf_Internal_Rela *rel,
2366 struct elf_link_hash_entry *h,
2367 Elf_Internal_Sym *sym)
2368 {
2369 if (h != NULL)
2370 switch (ELF64_R_TYPE (rel->r_info))
2371 {
2372 case R_SH_GNU_VTINHERIT:
2373 case R_SH_GNU_VTENTRY:
2374 return NULL;
2375 }
2376
2377 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2378 }
2379
2380 /* Look through the relocs for a section during the first phase.
2381 Since we don't do .gots or .plts, we just need to consider the
2382 virtual table relocs for gc. */
2383
2384 static bfd_boolean
2385 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2386 asection *sec, const Elf_Internal_Rela *relocs)
2387 {
2388 Elf_Internal_Shdr *symtab_hdr;
2389 struct elf_link_hash_entry **sym_hashes;
2390 const Elf_Internal_Rela *rel;
2391 const Elf_Internal_Rela *rel_end;
2392 bfd *dynobj;
2393 bfd_vma *local_got_offsets;
2394 asection *sgot;
2395 asection *srelgot;
2396 asection *sreloc;
2397
2398 sgot = NULL;
2399 srelgot = NULL;
2400 sreloc = NULL;
2401
2402 if (info->relocatable)
2403 return TRUE;
2404
2405 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2406 sym_hashes = elf_sym_hashes (abfd);
2407
2408 dynobj = elf_hash_table (info)->dynobj;
2409 local_got_offsets = elf_local_got_offsets (abfd);
2410
2411 rel_end = relocs + sec->reloc_count;
2412 for (rel = relocs; rel < rel_end; rel++)
2413 {
2414 struct elf_link_hash_entry *h;
2415 unsigned long r_symndx;
2416
2417 r_symndx = ELF64_R_SYM (rel->r_info);
2418 if (r_symndx < symtab_hdr->sh_info)
2419 h = NULL;
2420 else
2421 {
2422 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2423 while (h->root.type == bfd_link_hash_indirect
2424 || h->root.type == bfd_link_hash_warning)
2425 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2426
2427 /* PR15323, ref flags aren't set for references in the same
2428 object. */
2429 h->root.non_ir_ref = 1;
2430 }
2431
2432 /* Some relocs require a global offset table. */
2433 if (dynobj == NULL)
2434 {
2435 switch (ELF64_R_TYPE (rel->r_info))
2436 {
2437 case R_SH_GOTPLT_LOW16:
2438 case R_SH_GOTPLT_MEDLOW16:
2439 case R_SH_GOTPLT_MEDHI16:
2440 case R_SH_GOTPLT_HI16:
2441 case R_SH_GOTPLT10BY4:
2442 case R_SH_GOTPLT10BY8:
2443 case R_SH_GOT_LOW16:
2444 case R_SH_GOT_MEDLOW16:
2445 case R_SH_GOT_MEDHI16:
2446 case R_SH_GOT_HI16:
2447 case R_SH_GOT10BY4:
2448 case R_SH_GOT10BY8:
2449 case R_SH_GOTOFF_LOW16:
2450 case R_SH_GOTOFF_MEDLOW16:
2451 case R_SH_GOTOFF_MEDHI16:
2452 case R_SH_GOTOFF_HI16:
2453 case R_SH_GOTPC_LOW16:
2454 case R_SH_GOTPC_MEDLOW16:
2455 case R_SH_GOTPC_MEDHI16:
2456 case R_SH_GOTPC_HI16:
2457 elf_hash_table (info)->dynobj = dynobj = abfd;
2458 if (! _bfd_elf_create_got_section (dynobj, info))
2459 return FALSE;
2460 break;
2461
2462 default:
2463 break;
2464 }
2465 }
2466
2467 switch (ELF64_R_TYPE (rel->r_info))
2468 {
2469 /* This relocation describes the C++ object vtable hierarchy.
2470 Reconstruct it for later use during GC. */
2471 case R_SH_GNU_VTINHERIT:
2472 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2473 return FALSE;
2474 break;
2475
2476 /* This relocation describes which C++ vtable entries are actually
2477 used. Record for later use during GC. */
2478 case R_SH_GNU_VTENTRY:
2479 BFD_ASSERT (h != NULL);
2480 if (h != NULL
2481 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2482 return FALSE;
2483 break;
2484
2485 force_got:
2486 case R_SH_GOT_LOW16:
2487 case R_SH_GOT_MEDLOW16:
2488 case R_SH_GOT_MEDHI16:
2489 case R_SH_GOT_HI16:
2490 case R_SH_GOT10BY4:
2491 case R_SH_GOT10BY8:
2492 /* This symbol requires a global offset table entry. */
2493
2494 if (sgot == NULL)
2495 {
2496 sgot = bfd_get_linker_section (dynobj, ".got");
2497 BFD_ASSERT (sgot != NULL);
2498 }
2499
2500 if (srelgot == NULL
2501 && (h != NULL || info->shared))
2502 {
2503 srelgot = bfd_get_linker_section (dynobj, ".rela.got");
2504 if (srelgot == NULL)
2505 {
2506 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
2507 | SEC_IN_MEMORY | SEC_LINKER_CREATED
2508 | SEC_READONLY);
2509 srelgot = bfd_make_section_anyway_with_flags (dynobj,
2510 ".rela.got",
2511 flags);
2512 if (srelgot == NULL
2513 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
2514 return FALSE;
2515 }
2516 }
2517
2518 if (h != NULL)
2519 {
2520 if (h->type == STT_DATALABEL)
2521 {
2522 struct elf_sh64_link_hash_entry *hsh;
2523
2524 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2525 hsh = (struct elf_sh64_link_hash_entry *)h;
2526 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2527 break;
2528
2529 hsh->datalabel_got_offset = sgot->size;
2530 }
2531 else
2532 {
2533 if (h->got.offset != (bfd_vma) -1)
2534 {
2535 /* We have already allocated space in the .got. */
2536 break;
2537 }
2538 h->got.offset = sgot->size;
2539 }
2540
2541 /* Make sure this symbol is output as a dynamic symbol. */
2542 if (h->dynindx == -1)
2543 {
2544 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2545 return FALSE;
2546 }
2547
2548 srelgot->size += sizeof (Elf64_External_Rela);
2549 }
2550 else
2551 {
2552 /* This is a global offset table entry for a local
2553 symbol. */
2554 if (local_got_offsets == NULL)
2555 {
2556 size_t size;
2557 register unsigned int i;
2558
2559 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2560 /* Reserve space for both the datalabel and
2561 codelabel local GOT offsets. */
2562 size *= 2;
2563 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2564 if (local_got_offsets == NULL)
2565 return FALSE;
2566 elf_local_got_offsets (abfd) = local_got_offsets;
2567 for (i = 0; i < symtab_hdr->sh_info; i++)
2568 local_got_offsets[i] = (bfd_vma) -1;
2569 for (; i < 2 * symtab_hdr->sh_info; i++)
2570 local_got_offsets[i] = (bfd_vma) -1;
2571 }
2572 if ((rel->r_addend & 1) != 0)
2573 {
2574 if (local_got_offsets[symtab_hdr->sh_info
2575 + r_symndx] != (bfd_vma) -1)
2576 {
2577 /* We have already allocated space in the .got. */
2578 break;
2579 }
2580 local_got_offsets[symtab_hdr->sh_info
2581 + r_symndx] = sgot->size;
2582 }
2583 else
2584 {
2585 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2586 {
2587 /* We have already allocated space in the .got. */
2588 break;
2589 }
2590 local_got_offsets[r_symndx] = sgot->size;
2591 }
2592
2593 if (info->shared)
2594 {
2595 /* If we are generating a shared object, we need to
2596 output a R_SH_RELATIVE reloc so that the dynamic
2597 linker can adjust this GOT entry. */
2598 srelgot->size += sizeof (Elf64_External_Rela);
2599 }
2600 }
2601
2602 sgot->size += 8;
2603
2604 break;
2605
2606 case R_SH_GOTPLT_LOW16:
2607 case R_SH_GOTPLT_MEDLOW16:
2608 case R_SH_GOTPLT_MEDHI16:
2609 case R_SH_GOTPLT_HI16:
2610 case R_SH_GOTPLT10BY4:
2611 case R_SH_GOTPLT10BY8:
2612 /* If this is a local symbol, we resolve it directly without
2613 creating a procedure linkage table entry. */
2614
2615 if (h == NULL
2616 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2617 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2618 || ! info->shared
2619 || info->symbolic
2620 || h->dynindx == -1
2621 || h->got.offset != (bfd_vma) -1)
2622 goto force_got;
2623
2624 /* Make sure this symbol is output as a dynamic symbol. */
2625 if (h->dynindx == -1)
2626 {
2627 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2628 return FALSE;
2629 }
2630
2631 h->needs_plt = 1;
2632
2633 break;
2634
2635 case R_SH_PLT_LOW16:
2636 case R_SH_PLT_MEDLOW16:
2637 case R_SH_PLT_MEDHI16:
2638 case R_SH_PLT_HI16:
2639 /* This symbol requires a procedure linkage table entry. We
2640 actually build the entry in adjust_dynamic_symbol,
2641 because this might be a case of linking PIC code which is
2642 never referenced by a dynamic object, in which case we
2643 don't need to generate a procedure linkage table entry
2644 after all. */
2645
2646 /* If this is a local symbol, we resolve it directly without
2647 creating a procedure linkage table entry. */
2648 if (h == NULL)
2649 continue;
2650
2651 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2652 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2653 break;
2654
2655 h->needs_plt = 1;
2656
2657 break;
2658
2659 case R_SH_64:
2660 case R_SH_64_PCREL:
2661 if (h != NULL)
2662 h->non_got_ref = 1;
2663
2664 /* If we are creating a shared library, and this is a reloc
2665 against a global symbol, or a non PC relative reloc
2666 against a local symbol, then we need to copy the reloc
2667 into the shared library. However, if we are linking with
2668 -Bsymbolic, we do not need to copy a reloc against a
2669 global symbol which is defined in an object we are
2670 including in the link (i.e., DEF_REGULAR is set). At
2671 this point we have not seen all the input files, so it is
2672 possible that DEF_REGULAR is not set now but will be set
2673 later (it is never cleared). We account for that
2674 possibility below by storing information in the
2675 pcrel_relocs_copied field of the hash table entry. */
2676 if (info->shared
2677 && (sec->flags & SEC_ALLOC) != 0
2678 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2679 || (h != NULL
2680 && (! info->symbolic
2681 || !h->def_regular))))
2682 {
2683 /* When creating a shared object, we must copy these
2684 reloc types into the output file. We create a reloc
2685 section in dynobj and make room for this reloc. */
2686 if (sreloc == NULL)
2687 {
2688 sreloc = _bfd_elf_make_dynamic_reloc_section
2689 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
2690
2691 if (sreloc == NULL)
2692 return FALSE;
2693 }
2694
2695 sreloc->size += sizeof (Elf64_External_Rela);
2696
2697 /* If we are linking with -Bsymbolic, and this is a
2698 global symbol, we count the number of PC relative
2699 relocations we have entered for this symbol, so that
2700 we can discard them again if the symbol is later
2701 defined by a regular object. Note that this function
2702 is only called if we are using an elf_sh linker
2703 hash table, which means that h is really a pointer to
2704 an elf_sh_link_hash_entry. */
2705 if (h != NULL && info->symbolic
2706 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2707 {
2708 struct elf_sh64_link_hash_entry *eh;
2709 struct elf_sh64_pcrel_relocs_copied *p;
2710
2711 eh = (struct elf_sh64_link_hash_entry *) h;
2712
2713 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2714 if (p->section == sreloc)
2715 break;
2716
2717 if (p == NULL)
2718 {
2719 p = ((struct elf_sh64_pcrel_relocs_copied *)
2720 bfd_alloc (dynobj, sizeof *p));
2721 if (p == NULL)
2722 return FALSE;
2723 p->next = eh->pcrel_relocs_copied;
2724 eh->pcrel_relocs_copied = p;
2725 p->section = sreloc;
2726 p->count = 0;
2727 }
2728
2729 ++p->count;
2730 }
2731 }
2732
2733 break;
2734 }
2735 }
2736
2737 return TRUE;
2738 }
2739
2740 static int
2741 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2742 {
2743 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2744 return STT_DATALABEL;
2745
2746 return type;
2747 }
2748
2749 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2750 Either file can presumably exist without the other, but do not differ
2751 in elf-size-ness. How to share?
2752
2753 Hook called by the linker routine which adds symbols from an object
2754 file. We must make indirect symbols for undefined symbols marked with
2755 STT_DATALABEL, so relocations passing them will pick up that attribute
2756 and neutralize STO_SH5_ISA32 found on the symbol definition.
2757
2758 There is a problem, though: We want to fill in the hash-table entry for
2759 this symbol and signal to the caller that no further processing is
2760 needed. But we don't have the index for this hash-table entry. We
2761 rely here on that the current entry is the first hash-entry with NULL,
2762 which seems brittle. Also, iterating over the hash-table to find that
2763 entry is a linear operation on the number of symbols in this input
2764 file, and this function should take constant time, so that's not good
2765 too. Only comfort is that DataLabel references should only be found in
2766 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2767 into adding an option to elf_add_symbol_hook (preferably) for the index
2768 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2769 (not so good). */
2770
2771 static bfd_boolean
2772 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2773 Elf_Internal_Sym *sym, const char **namep,
2774 flagword *flagsp ATTRIBUTE_UNUSED,
2775 asection **secp, bfd_vma *valp)
2776 {
2777 /* We want to do this for relocatable as well as final linking. */
2778 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2779 && is_elf_hash_table (info->hash))
2780 {
2781 struct elf_link_hash_entry *h;
2782
2783 /* For relocatable links, we register the DataLabel sym in its own
2784 right, and tweak the name when it's output. Otherwise, we make
2785 an indirect symbol of it. */
2786 flagword flags
2787 = info->relocatable || info->emitrelocations
2788 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2789
2790 char *dl_name
2791 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2792 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2793
2794 BFD_ASSERT (sym_hash != NULL);
2795
2796 /* Allocation may fail. */
2797 if (dl_name == NULL)
2798 return FALSE;
2799
2800 strcpy (dl_name, *namep);
2801 strcat (dl_name, DATALABEL_SUFFIX);
2802
2803 h = (struct elf_link_hash_entry *)
2804 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2805
2806 if (h == NULL)
2807 {
2808 /* No previous datalabel symbol. Make one. */
2809 struct bfd_link_hash_entry *bh = NULL;
2810 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2811
2812 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2813 flags, *secp, *valp,
2814 *namep, FALSE,
2815 bed->collect, &bh))
2816 {
2817 free (dl_name);
2818 return FALSE;
2819 }
2820
2821 h = (struct elf_link_hash_entry *) bh;
2822 h->non_elf = 0;
2823 h->type = STT_DATALABEL;
2824 }
2825 else
2826 /* If a new symbol was created, it holds the allocated name.
2827 Otherwise, we don't need it anymore and should deallocate it. */
2828 free (dl_name);
2829
2830 if (h->type != STT_DATALABEL
2831 || ((info->relocatable || info->emitrelocations)
2832 && h->root.type != bfd_link_hash_undefined)
2833 || (! info->relocatable && !info->emitrelocations
2834 && h->root.type != bfd_link_hash_indirect))
2835 {
2836 /* Make sure we don't get confused on invalid input. */
2837 (*_bfd_error_handler)
2838 (_("%s: encountered datalabel symbol in input"),
2839 bfd_get_filename (abfd));
2840 bfd_set_error (bfd_error_bad_value);
2841 return FALSE;
2842 }
2843
2844 /* Now find the hash-table slot for this entry and fill it in. */
2845 while (*sym_hash != NULL)
2846 sym_hash++;
2847 *sym_hash = h;
2848
2849 /* Signal to caller to skip this symbol - we've handled it. */
2850 *namep = NULL;
2851 }
2852
2853 return TRUE;
2854 }
2855
2856 /* This hook function is called before the linker writes out a global
2857 symbol. For relocatable links, DataLabel symbols will be present in
2858 linker output. We cut off the special suffix on those symbols, so the
2859 right name appears in the output.
2860
2861 When linking and emitting relocations, there can appear global symbols
2862 that are not referenced by relocs, but rather only implicitly through
2863 DataLabel references, a relation that is not visible to the linker.
2864 Since no stripping of global symbols in done when doing such linking,
2865 we don't need to look up and make sure to emit the main symbol for each
2866 DataLabel symbol. */
2867
2868 static int
2869 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2870 const char *cname,
2871 Elf_Internal_Sym *sym,
2872 asection *input_sec ATTRIBUTE_UNUSED,
2873 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2874 {
2875 char *name = (char *) cname;
2876
2877 if (info->relocatable || info->emitrelocations)
2878 {
2879 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2880 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2881 }
2882
2883 return 1;
2884 }
2885
2886 /* Set bit 0 on the entry address; it always points to SHmedia code. This
2887 is mostly for symmetry with the 32-bit format, where code can be
2888 SHcompact and we need to make a distinction to make sure execution
2889 starts in the right ISA mode. It is also convenient for a loader,
2890 which would otherwise have to set this bit when loading a TR register
2891 before jumping to the program entry. */
2892
2893 static void
2894 sh64_elf64_final_write_processing (bfd *abfd,
2895 bfd_boolean linker ATTRIBUTE_UNUSED)
2896 {
2897 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
2898 numerically, but we currently lack the infrastructure to recognize
2899 that: The entry symbol, and info whether it is numeric or a symbol
2900 name is kept private in the linker. */
2901 if (elf_elfheader (abfd)->e_type == ET_EXEC)
2902 elf_elfheader (abfd)->e_entry |= 1;
2903 }
2904
2905 /* First entry in an absolute procedure linkage table look like this. */
2906
2907 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
2908 {
2909 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
2910 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
2911 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
2912 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2913 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2914 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2915 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2916 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2917 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2918 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2919 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2920 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2921 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2922 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2923 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2924 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2925 };
2926
2927 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
2928 {
2929 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
2930 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
2931 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
2932 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2933 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2934 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2935 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2936 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2937 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2938 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2939 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2940 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2941 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2942 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2943 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2944 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2945 };
2946
2947 /* Sebsequent entries in an absolute procedure linkage table look like
2948 this. */
2949
2950 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
2951 {
2952 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
2953 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
2954 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
2955 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
2956 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
2957 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2958 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2959 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2960 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
2961 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
2962 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
2963 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2964 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2965 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2966 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2967 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2968 };
2969
2970 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
2971 {
2972 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
2973 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2974 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2975 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2976 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
2977 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2978 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2979 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2980 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
2981 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
2982 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
2983 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2984 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2985 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2986 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2987 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2988 };
2989
2990 /* Entries in a PIC procedure linkage table look like this. */
2991
2992 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
2993 {
2994 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
2995 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
2996 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
2997 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2998 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2999 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3000 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3001 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3002 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3003 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
3004 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3005 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3006 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3007 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3008 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3009 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3010 };
3011
3012 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3013 {
3014 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3015 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3016 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
3017 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3018 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3019 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3020 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3021 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3022 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3023 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
3024 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3025 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3026 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3027 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3028 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3029 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3030 };
3031
3032 static const bfd_byte *elf_sh64_plt0_entry;
3033 static const bfd_byte *elf_sh64_plt_entry;
3034 static const bfd_byte *elf_sh64_pic_plt_entry;
3035
3036 /* Create an entry in an sh ELF linker hash table. */
3037
3038 static struct bfd_hash_entry *
3039 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
3040 struct bfd_hash_table *table,
3041 const char *string)
3042 {
3043 struct elf_sh64_link_hash_entry *ret =
3044 (struct elf_sh64_link_hash_entry *) entry;
3045
3046 /* Allocate the structure if it has not already been allocated by a
3047 subclass. */
3048 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3049 ret = ((struct elf_sh64_link_hash_entry *)
3050 bfd_hash_allocate (table,
3051 sizeof (struct elf_sh64_link_hash_entry)));
3052 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3053 return (struct bfd_hash_entry *) ret;
3054
3055 /* Call the allocation method of the superclass. */
3056 ret = ((struct elf_sh64_link_hash_entry *)
3057 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3058 table, string));
3059 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3060 {
3061 ret->pcrel_relocs_copied = NULL;
3062 ret->datalabel_got_offset = (bfd_vma) -1;
3063 }
3064
3065 return (struct bfd_hash_entry *) ret;
3066 }
3067
3068 /* Create an sh64 ELF linker hash table. */
3069
3070 static struct bfd_link_hash_table *
3071 sh64_elf64_link_hash_table_create (bfd *abfd)
3072 {
3073 struct elf_link_hash_table *ret;
3074
3075 ret = (struct elf_link_hash_table *) bfd_zmalloc (sizeof (* ret));
3076 if (ret == (struct elf_link_hash_table *) NULL)
3077 return NULL;
3078
3079 if (!_bfd_elf_link_hash_table_init (ret, abfd,
3080 sh64_elf64_link_hash_newfunc,
3081 sizeof (struct elf_sh64_link_hash_entry),
3082 GENERIC_ELF_DATA))
3083 {
3084 free (ret);
3085 return NULL;
3086 }
3087
3088 return &ret->root;
3089 }
3090
3091 inline static void
3092 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
3093 {
3094 bfd_put_32 (output_bfd,
3095 bfd_get_32 (output_bfd, addr)
3096 | ((value >> 6) & 0x3fffc00),
3097 addr);
3098 bfd_put_32 (output_bfd,
3099 bfd_get_32 (output_bfd, addr + 4)
3100 | ((value << 10) & 0x3fffc00),
3101 addr + 4);
3102 }
3103
3104 inline static void
3105 movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr)
3106 {
3107 bfd_put_32 (output_bfd,
3108 bfd_get_32 (output_bfd, addr)
3109 | ((value >> 38) & 0x3fffc00),
3110 addr);
3111 bfd_put_32 (output_bfd,
3112 bfd_get_32 (output_bfd, addr + 4)
3113 | ((value >> 22) & 0x3fffc00),
3114 addr + 4);
3115 bfd_put_32 (output_bfd,
3116 bfd_get_32 (output_bfd, addr + 8)
3117 | ((value >> 6) & 0x3fffc00),
3118 addr + 8);
3119 bfd_put_32 (output_bfd,
3120 bfd_get_32 (output_bfd, addr + 12)
3121 | ((value << 10) & 0x3fffc00),
3122 addr + 12);
3123 }
3124
3125 /* Create dynamic sections when linking against a dynamic object. */
3126
3127 static bfd_boolean
3128 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3129 {
3130 flagword flags, pltflags;
3131 register asection *s;
3132 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3133 int ptralign = 0;
3134
3135 switch (bed->s->arch_size)
3136 {
3137 case 32:
3138 ptralign = 2;
3139 break;
3140
3141 case 64:
3142 ptralign = 3;
3143 break;
3144
3145 default:
3146 bfd_set_error (bfd_error_bad_value);
3147 return FALSE;
3148 }
3149
3150 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3151 .rel[a].bss sections. */
3152
3153 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3154 | SEC_LINKER_CREATED);
3155
3156 pltflags = flags;
3157 pltflags |= SEC_CODE;
3158 if (bed->plt_not_loaded)
3159 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3160 if (bed->plt_readonly)
3161 pltflags |= SEC_READONLY;
3162
3163 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
3164 if (s == NULL
3165 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3166 return FALSE;
3167
3168 if (bed->want_plt_sym)
3169 {
3170 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3171 .plt section. */
3172 struct elf_link_hash_entry *h;
3173 struct bfd_link_hash_entry *bh = NULL;
3174
3175 if (! (_bfd_generic_link_add_one_symbol
3176 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3177 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3178 return FALSE;
3179
3180 h = (struct elf_link_hash_entry *) bh;
3181 h->def_regular = 1;
3182 h->type = STT_OBJECT;
3183 elf_hash_table (info)->hplt = h;
3184
3185 if (info->shared
3186 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3187 return FALSE;
3188 }
3189
3190 s = bfd_make_section_anyway_with_flags (abfd,
3191 bed->default_use_rela_p
3192 ? ".rela.plt" : ".rel.plt",
3193 flags | SEC_READONLY);
3194 if (s == NULL
3195 || ! bfd_set_section_alignment (abfd, s, ptralign))
3196 return FALSE;
3197
3198 if (! _bfd_elf_create_got_section (abfd, info))
3199 return FALSE;
3200
3201 if (bed->want_dynbss)
3202 {
3203 /* The .dynbss section is a place to put symbols which are defined
3204 by dynamic objects, are referenced by regular objects, and are
3205 not functions. We must allocate space for them in the process
3206 image and use a R_*_COPY reloc to tell the dynamic linker to
3207 initialize them at run time. The linker script puts the .dynbss
3208 section into the .bss section of the final image. */
3209 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3210 SEC_ALLOC | SEC_LINKER_CREATED);
3211 if (s == NULL)
3212 return FALSE;
3213
3214 /* The .rel[a].bss section holds copy relocs. This section is not
3215 normally needed. We need to create it here, though, so that the
3216 linker will map it to an output section. We can't just create it
3217 only if we need it, because we will not know whether we need it
3218 until we have seen all the input files, and the first time the
3219 main linker code calls BFD after examining all the input files
3220 (size_dynamic_sections) the input sections have already been
3221 mapped to the output sections. If the section turns out not to
3222 be needed, we can discard it later. We will never need this
3223 section when generating a shared object, since they do not use
3224 copy relocs. */
3225 if (! info->shared)
3226 {
3227 s = bfd_make_section_anyway_with_flags (abfd,
3228 (bed->default_use_rela_p
3229 ? ".rela.bss" : ".rel.bss"),
3230 flags | SEC_READONLY);
3231 if (s == NULL
3232 || ! bfd_set_section_alignment (abfd, s, ptralign))
3233 return FALSE;
3234 }
3235 }
3236
3237 return TRUE;
3238 }
3239 \f
3240 /* Adjust a symbol defined by a dynamic object and referenced by a
3241 regular object. The current definition is in some section of the
3242 dynamic object, but we're not including those sections. We have to
3243 change the definition to something the rest of the link can
3244 understand. */
3245
3246 static bfd_boolean
3247 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3248 struct elf_link_hash_entry *h)
3249 {
3250 bfd *dynobj;
3251 asection *s;
3252
3253 dynobj = elf_hash_table (info)->dynobj;
3254
3255 /* Make sure we know what is going on here. */
3256 BFD_ASSERT (dynobj != NULL
3257 && (h->needs_plt
3258 || h->u.weakdef != NULL
3259 || (h->def_dynamic
3260 && h->ref_regular
3261 && !h->def_regular)));
3262
3263 /* If this is a function, put it in the procedure linkage table. We
3264 will fill in the contents of the procedure linkage table later,
3265 when we know the address of the .got section. */
3266 if (h->type == STT_FUNC
3267 || h->needs_plt)
3268 {
3269 if (! info->shared
3270 && !h->def_dynamic
3271 && !h->ref_dynamic)
3272 {
3273 /* This case can occur if we saw a PLT reloc in an input
3274 file, but the symbol was never referred to by a dynamic
3275 object. In such a case, we don't actually need to build
3276 a procedure linkage table, and we can just do a REL64
3277 reloc instead. */
3278 BFD_ASSERT (h->needs_plt);
3279 return TRUE;
3280 }
3281
3282 /* Make sure this symbol is output as a dynamic symbol. */
3283 if (h->dynindx == -1)
3284 {
3285 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3286 return FALSE;
3287 }
3288
3289 s = bfd_get_linker_section (dynobj, ".plt");
3290 BFD_ASSERT (s != NULL);
3291
3292 /* If this is the first .plt entry, make room for the special
3293 first entry. */
3294 if (s->size == 0)
3295 s->size += PLT_ENTRY_SIZE;
3296
3297 /* If this symbol is not defined in a regular file, and we are
3298 not generating a shared library, then set the symbol to this
3299 location in the .plt. This is required to make function
3300 pointers compare as equal between the normal executable and
3301 the shared library. */
3302 if (! info->shared
3303 && !h->def_regular)
3304 {
3305 h->root.u.def.section = s;
3306 h->root.u.def.value = s->size;
3307 }
3308
3309 h->plt.offset = s->size;
3310
3311 /* Make room for this entry. */
3312 s->size += elf_sh64_sizeof_plt (info);
3313
3314 /* We also need to make an entry in the .got.plt section, which
3315 will be placed in the .got section by the linker script. */
3316
3317 s = bfd_get_linker_section (dynobj, ".got.plt");
3318 BFD_ASSERT (s != NULL);
3319 s->size += 8;
3320
3321 /* We also need to make an entry in the .rela.plt section. */
3322
3323 s = bfd_get_linker_section (dynobj, ".rela.plt");
3324 BFD_ASSERT (s != NULL);
3325 s->size += sizeof (Elf64_External_Rela);
3326
3327 return TRUE;
3328 }
3329
3330 /* If this is a weak symbol, and there is a real definition, the
3331 processor independent code will have arranged for us to see the
3332 real definition first, and we can just use the same value. */
3333 if (h->u.weakdef != NULL)
3334 {
3335 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3336 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3337 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3338 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3339 return TRUE;
3340 }
3341
3342 /* This is a reference to a symbol defined by a dynamic object which
3343 is not a function. */
3344
3345 /* If we are creating a shared library, we must presume that the
3346 only references to the symbol are via the global offset table.
3347 For such cases we need not do anything here; the relocations will
3348 be handled correctly by relocate_section. */
3349 if (info->shared)
3350 return TRUE;
3351
3352 /* If there are no references to this symbol that do not use the
3353 GOT, we don't need to generate a copy reloc. */
3354 if (!h->non_got_ref)
3355 return TRUE;
3356
3357 /* We must allocate the symbol in our .dynbss section, which will
3358 become part of the .bss section of the executable. There will be
3359 an entry for this symbol in the .dynsym section. The dynamic
3360 object will contain position independent code, so all references
3361 from the dynamic object to this symbol will go through the global
3362 offset table. The dynamic linker will use the .dynsym entry to
3363 determine the address it must put in the global offset table, so
3364 both the dynamic object and the regular object will refer to the
3365 same memory location for the variable. */
3366
3367 s = bfd_get_linker_section (dynobj, ".dynbss");
3368 BFD_ASSERT (s != NULL);
3369
3370 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3371 copy the initial value out of the dynamic object and into the
3372 runtime process image. We need to remember the offset into the
3373 .rela.bss section we are going to use. */
3374 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
3375 {
3376 asection *srel;
3377
3378 srel = bfd_get_linker_section (dynobj, ".rela.bss");
3379 BFD_ASSERT (srel != NULL);
3380 srel->size += sizeof (Elf64_External_Rela);
3381 h->needs_copy = 1;
3382 }
3383
3384 return _bfd_elf_adjust_dynamic_copy (h, s);
3385 }
3386
3387 /* This function is called via sh_elf_link_hash_traverse if we are
3388 creating a shared object with -Bsymbolic. It discards the space
3389 allocated to copy PC relative relocs against symbols which are
3390 defined in regular objects. We allocated space for them in the
3391 check_relocs routine, but we won't fill them in in the
3392 relocate_section routine. */
3393
3394 static bfd_boolean
3395 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3396 void *ignore ATTRIBUTE_UNUSED)
3397 {
3398 struct elf_sh64_pcrel_relocs_copied *s;
3399
3400 /* We only discard relocs for symbols defined in a regular object. */
3401 if (!h->root.def_regular)
3402 return TRUE;
3403
3404 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3405 s->section->size -= s->count * sizeof (Elf64_External_Rela);
3406
3407 return TRUE;
3408 }
3409
3410 /* Set the sizes of the dynamic sections. */
3411
3412 static bfd_boolean
3413 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3414 struct bfd_link_info *info)
3415 {
3416 bfd *dynobj;
3417 asection *s;
3418 bfd_boolean plt;
3419 bfd_boolean relocs;
3420 bfd_boolean reltext;
3421
3422 dynobj = elf_hash_table (info)->dynobj;
3423 BFD_ASSERT (dynobj != NULL);
3424
3425 if (elf_hash_table (info)->dynamic_sections_created)
3426 {
3427 /* Set the contents of the .interp section to the interpreter. */
3428 if (info->executable)
3429 {
3430 s = bfd_get_linker_section (dynobj, ".interp");
3431 BFD_ASSERT (s != NULL);
3432 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3433 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3434 }
3435 }
3436 else
3437 {
3438 /* We may have created entries in the .rela.got section.
3439 However, if we are not creating the dynamic sections, we will
3440 not actually use these entries. Reset the size of .rela.got,
3441 which will cause it to get stripped from the output file
3442 below. */
3443 s = bfd_get_linker_section (dynobj, ".rela.got");
3444 if (s != NULL)
3445 s->size = 0;
3446 }
3447
3448 /* If this is a -Bsymbolic shared link, then we need to discard all
3449 PC relative relocs against symbols defined in a regular object.
3450 We allocated space for them in the check_relocs routine, but we
3451 will not fill them in in the relocate_section routine. */
3452 if (info->shared && info->symbolic)
3453 sh64_elf64_link_hash_traverse (elf_hash_table (info),
3454 sh64_elf64_discard_copies, NULL);
3455
3456 /* The check_relocs and adjust_dynamic_symbol entry points have
3457 determined the sizes of the various dynamic sections. Allocate
3458 memory for them. */
3459 plt = FALSE;
3460 relocs = FALSE;
3461 reltext = FALSE;
3462 for (s = dynobj->sections; s != NULL; s = s->next)
3463 {
3464 const char *name;
3465
3466 if ((s->flags & SEC_LINKER_CREATED) == 0)
3467 continue;
3468
3469 /* It's OK to base decisions on the section name, because none
3470 of the dynobj section names depend upon the input files. */
3471 name = bfd_get_section_name (dynobj, s);
3472
3473 if (strcmp (name, ".plt") == 0)
3474 {
3475 /* Remember whether there is a PLT. */
3476 plt = s->size != 0;
3477 }
3478 else if (CONST_STRNEQ (name, ".rela"))
3479 {
3480 if (s->size != 0)
3481 {
3482 asection *target;
3483
3484 /* Remember whether there are any reloc sections other
3485 than .rela.plt. */
3486 if (strcmp (name, ".rela.plt") != 0)
3487 {
3488 const char *outname;
3489
3490 relocs = TRUE;
3491
3492 /* If this relocation section applies to a read only
3493 section, then we probably need a DT_TEXTREL
3494 entry. The entries in the .rela.plt section
3495 really apply to the .got section, which we
3496 created ourselves and so know is not readonly. */
3497 outname = bfd_get_section_name (output_bfd,
3498 s->output_section);
3499 target = bfd_get_section_by_name (output_bfd, outname + 5);
3500 if (target != NULL
3501 && (target->flags & SEC_READONLY) != 0
3502 && (target->flags & SEC_ALLOC) != 0)
3503 reltext = TRUE;
3504 }
3505
3506 /* We use the reloc_count field as a counter if we need
3507 to copy relocs into the output file. */
3508 s->reloc_count = 0;
3509 }
3510 }
3511 else if (! CONST_STRNEQ (name, ".got")
3512 && strcmp (name, ".dynbss") != 0)
3513 {
3514 /* It's not one of our sections, so don't allocate space. */
3515 continue;
3516 }
3517
3518 if (s->size == 0)
3519 {
3520 /* If we don't need this section, strip it from the
3521 output file. This is mostly to handle .rela.bss and
3522 .rela.plt. We must create both sections in
3523 create_dynamic_sections, because they must be created
3524 before the linker maps input sections to output
3525 sections. The linker does that before
3526 adjust_dynamic_symbol is called, and it is that
3527 function which decides whether anything needs to go
3528 into these sections. */
3529 s->flags |= SEC_EXCLUDE;
3530 continue;
3531 }
3532
3533 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3534 continue;
3535
3536 /* Allocate memory for the section contents. */
3537 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3538 if (s->contents == NULL)
3539 return FALSE;
3540 }
3541
3542 if (elf_hash_table (info)->dynamic_sections_created)
3543 {
3544 /* Add some entries to the .dynamic section. We fill in the
3545 values later, in sh64_elf64_finish_dynamic_sections, but we
3546 must add the entries now so that we get the correct size for
3547 the .dynamic section. The DT_DEBUG entry is filled in by the
3548 dynamic linker and used by the debugger. */
3549 if (info->executable)
3550 {
3551 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3552 return FALSE;
3553 }
3554
3555 if (plt)
3556 {
3557 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3558 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3559 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3560 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3561 return FALSE;
3562 }
3563
3564 if (relocs)
3565 {
3566 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3567 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3568 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3569 sizeof (Elf64_External_Rela)))
3570 return FALSE;
3571 }
3572
3573 if (reltext)
3574 {
3575 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3576 return FALSE;
3577 }
3578 }
3579
3580 return TRUE;
3581 }
3582
3583 /* Finish up dynamic symbol handling. We set the contents of various
3584 dynamic sections here. */
3585
3586 static bfd_boolean
3587 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3588 struct bfd_link_info *info,
3589 struct elf_link_hash_entry *h,
3590 Elf_Internal_Sym *sym)
3591 {
3592 bfd *dynobj;
3593
3594 dynobj = elf_hash_table (info)->dynobj;
3595
3596 if (h->plt.offset != (bfd_vma) -1)
3597 {
3598 asection *splt;
3599 asection *sgot;
3600 asection *srel;
3601
3602 bfd_vma plt_index;
3603 bfd_vma got_offset;
3604 Elf_Internal_Rela rel;
3605 bfd_byte *loc;
3606
3607 /* This symbol has an entry in the procedure linkage table. Set
3608 it up. */
3609
3610 BFD_ASSERT (h->dynindx != -1);
3611
3612 splt = bfd_get_linker_section (dynobj, ".plt");
3613 sgot = bfd_get_linker_section (dynobj, ".got.plt");
3614 srel = bfd_get_linker_section (dynobj, ".rela.plt");
3615 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3616
3617 /* Get the index in the procedure linkage table which
3618 corresponds to this symbol. This is the index of this symbol
3619 in all the symbols for which we are making plt entries. The
3620 first entry in the procedure linkage table is reserved. */
3621 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3622
3623 /* Get the offset into the .got table of the entry that
3624 corresponds to this function. Each .got entry is 8 bytes.
3625 The first three are reserved. */
3626 got_offset = (plt_index + 3) * 8;
3627
3628 if (info->shared)
3629 got_offset -= GOT_BIAS;
3630
3631 /* Fill in the entry in the procedure linkage table. */
3632 if (! info->shared)
3633 {
3634 if (elf_sh64_plt_entry == NULL)
3635 {
3636 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3637 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3638 }
3639 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3640 elf_sh64_sizeof_plt (info));
3641 movi_3shori_putval (output_bfd,
3642 (sgot->output_section->vma
3643 + sgot->output_offset
3644 + got_offset),
3645 (splt->contents + h->plt.offset
3646 + elf_sh64_plt_symbol_offset (info)));
3647
3648 /* Set bottom bit because its for a branch to SHmedia */
3649 movi_shori_putval (output_bfd,
3650 -(h->plt.offset
3651 + elf_sh64_plt_plt0_offset (info) + 8)
3652 | 1,
3653 (splt->contents + h->plt.offset
3654 + elf_sh64_plt_plt0_offset (info)));
3655 }
3656 else
3657 {
3658 if (elf_sh64_pic_plt_entry == NULL)
3659 {
3660 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3661 elf_sh64_pic_plt_entry_be :
3662 elf_sh64_pic_plt_entry_le);
3663 }
3664 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3665 elf_sh64_sizeof_plt (info));
3666 movi_shori_putval (output_bfd, got_offset,
3667 (splt->contents + h->plt.offset
3668 + elf_sh64_plt_symbol_offset (info)));
3669 }
3670
3671 if (info->shared)
3672 got_offset += GOT_BIAS;
3673
3674 movi_shori_putval (output_bfd,
3675 plt_index * sizeof (Elf64_External_Rela),
3676 (splt->contents + h->plt.offset
3677 + elf_sh64_plt_reloc_offset (info)));
3678
3679 /* Fill in the entry in the global offset table. */
3680 bfd_put_64 (output_bfd,
3681 (splt->output_section->vma
3682 + splt->output_offset
3683 + h->plt.offset
3684 + elf_sh64_plt_temp_offset (info)),
3685 sgot->contents + got_offset);
3686
3687 /* Fill in the entry in the .rela.plt section. */
3688 rel.r_offset = (sgot->output_section->vma
3689 + sgot->output_offset
3690 + got_offset);
3691 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3692 rel.r_addend = 0;
3693 rel.r_addend = GOT_BIAS;
3694 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3695 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3696
3697 if (!h->def_regular)
3698 {
3699 /* Mark the symbol as undefined, rather than as defined in
3700 the .plt section. Leave the value alone. */
3701 sym->st_shndx = SHN_UNDEF;
3702 }
3703 }
3704
3705 if (h->got.offset != (bfd_vma) -1)
3706 {
3707 asection *sgot;
3708 asection *srel;
3709 Elf_Internal_Rela rel;
3710 bfd_byte *loc;
3711
3712 /* This symbol has an entry in the global offset table. Set it
3713 up. */
3714
3715 sgot = bfd_get_linker_section (dynobj, ".got");
3716 srel = bfd_get_linker_section (dynobj, ".rela.got");
3717 BFD_ASSERT (sgot != NULL && srel != NULL);
3718
3719 rel.r_offset = (sgot->output_section->vma
3720 + sgot->output_offset
3721 + (h->got.offset &~ 1));
3722
3723 /* If this is a -Bsymbolic link, and the symbol is defined
3724 locally, we just want to emit a RELATIVE reloc. Likewise if
3725 the symbol was forced to be local because of a version file.
3726 The entry in the global offset table will already have been
3727 initialized in the relocate_section function. */
3728 if (info->shared
3729 && (info->symbolic || h->dynindx == -1)
3730 && h->def_regular)
3731 {
3732 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3733 rel.r_addend = (h->root.u.def.value
3734 + h->root.u.def.section->output_section->vma
3735 + h->root.u.def.section->output_offset);
3736 }
3737 else
3738 {
3739 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3740 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3741 rel.r_addend = 0;
3742 }
3743
3744 loc = srel->contents;
3745 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3746 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3747 }
3748
3749 if (h->needs_copy)
3750 {
3751 asection *s;
3752 Elf_Internal_Rela rel;
3753 bfd_byte *loc;
3754
3755 /* This symbol needs a copy reloc. Set it up. */
3756
3757 BFD_ASSERT (h->dynindx != -1
3758 && (h->root.type == bfd_link_hash_defined
3759 || h->root.type == bfd_link_hash_defweak));
3760
3761 s = bfd_get_linker_section (dynobj, ".rela.bss");
3762 BFD_ASSERT (s != NULL);
3763
3764 rel.r_offset = (h->root.u.def.value
3765 + h->root.u.def.section->output_section->vma
3766 + h->root.u.def.section->output_offset);
3767 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3768 rel.r_addend = 0;
3769 loc = s->contents;
3770 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3771 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3772 }
3773
3774 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3775 if (h == elf_hash_table (info)->hdynamic
3776 || h == elf_hash_table (info)->hgot)
3777 sym->st_shndx = SHN_ABS;
3778
3779 return TRUE;
3780 }
3781
3782 /* Finish up the dynamic sections. */
3783
3784 static bfd_boolean
3785 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3786 struct bfd_link_info *info)
3787 {
3788 bfd *dynobj;
3789 asection *sgot;
3790 asection *sdyn;
3791
3792 dynobj = elf_hash_table (info)->dynobj;
3793
3794 sgot = bfd_get_linker_section (dynobj, ".got.plt");
3795 BFD_ASSERT (sgot != NULL);
3796 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3797
3798 if (elf_hash_table (info)->dynamic_sections_created)
3799 {
3800 asection *splt;
3801 Elf64_External_Dyn *dyncon, *dynconend;
3802
3803 BFD_ASSERT (sdyn != NULL);
3804
3805 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3806 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3807 for (; dyncon < dynconend; dyncon++)
3808 {
3809 Elf_Internal_Dyn dyn;
3810 const char *name;
3811 asection *s;
3812 struct elf_link_hash_entry *h;
3813
3814 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3815
3816 switch (dyn.d_tag)
3817 {
3818 default:
3819 break;
3820
3821 case DT_INIT:
3822 name = info->init_function;
3823 goto get_sym;
3824
3825 case DT_FINI:
3826 name = info->fini_function;
3827 get_sym:
3828 if (dyn.d_un.d_val != 0)
3829 {
3830 h = elf_link_hash_lookup (elf_hash_table (info), name,
3831 FALSE, FALSE, TRUE);
3832 if (h != NULL && (h->other & STO_SH5_ISA32))
3833 {
3834 dyn.d_un.d_val |= 1;
3835 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3836 }
3837 }
3838 break;
3839
3840 case DT_PLTGOT:
3841 name = ".got";
3842 goto get_vma;
3843
3844 case DT_JMPREL:
3845 name = ".rela.plt";
3846 get_vma:
3847 s = bfd_get_section_by_name (output_bfd, name);
3848 BFD_ASSERT (s != NULL);
3849 dyn.d_un.d_ptr = s->vma;
3850 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3851 break;
3852
3853 case DT_PLTRELSZ:
3854 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
3855 BFD_ASSERT (s != NULL);
3856 dyn.d_un.d_val = s->size;
3857 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3858 break;
3859
3860 case DT_RELASZ:
3861 /* My reading of the SVR4 ABI indicates that the
3862 procedure linkage table relocs (DT_JMPREL) should be
3863 included in the overall relocs (DT_RELA). This is
3864 what Solaris does. However, UnixWare can not handle
3865 that case. Therefore, we override the DT_RELASZ entry
3866 here to make it not include the JMPREL relocs. Since
3867 the linker script arranges for .rela.plt to follow all
3868 other relocation sections, we don't have to worry
3869 about changing the DT_RELA entry. */
3870 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
3871 if (s != NULL)
3872 dyn.d_un.d_val -= s->size;
3873 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3874 break;
3875 }
3876 }
3877
3878 /* Fill in the first entry in the procedure linkage table. */
3879 splt = bfd_get_linker_section (dynobj, ".plt");
3880 if (splt && splt->size > 0)
3881 {
3882 if (info->shared)
3883 {
3884 if (elf_sh64_pic_plt_entry == NULL)
3885 {
3886 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3887 elf_sh64_pic_plt_entry_be :
3888 elf_sh64_pic_plt_entry_le);
3889 }
3890 memcpy (splt->contents, elf_sh64_pic_plt_entry,
3891 elf_sh64_sizeof_plt (info));
3892 }
3893 else
3894 {
3895 if (elf_sh64_plt0_entry == NULL)
3896 {
3897 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
3898 elf_sh64_plt0_entry_be :
3899 elf_sh64_plt0_entry_le);
3900 }
3901 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
3902 movi_3shori_putval (output_bfd,
3903 sgot->output_section->vma
3904 + sgot->output_offset,
3905 splt->contents
3906 + elf_sh64_plt0_gotplt_offset (info));
3907 }
3908
3909 /* UnixWare sets the entsize of .plt to 8, although that doesn't
3910 really seem like the right value. */
3911 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
3912 }
3913 }
3914
3915 /* Fill in the first three entries in the global offset table. */
3916 if (sgot->size > 0)
3917 {
3918 if (sdyn == NULL)
3919 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
3920 else
3921 bfd_put_64 (output_bfd,
3922 sdyn->output_section->vma + sdyn->output_offset,
3923 sgot->contents);
3924 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3925 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
3926 }
3927
3928 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
3929
3930 return TRUE;
3931 }
3932
3933 /* Merge non visibility st_other attribute when the symbol comes from
3934 a dynamic object. */
3935 static void
3936 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
3937 const Elf_Internal_Sym *isym,
3938 bfd_boolean definition,
3939 bfd_boolean dynamic ATTRIBUTE_UNUSED)
3940 {
3941 if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0)
3942 {
3943 unsigned char other;
3944
3945 /* Take the balance of OTHER from the definition. */
3946 other = (definition ? isym->st_other : h->other);
3947 other &= ~ ELF_ST_VISIBILITY (-1);
3948 h->other = other | ELF_ST_VISIBILITY (h->other);
3949 }
3950
3951 return;
3952 }
3953
3954 static const struct bfd_elf_special_section sh64_elf64_special_sections[]=
3955 {
3956 { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 },
3957 { NULL, 0, 0, 0, 0 }
3958 };
3959
3960 #define TARGET_BIG_SYM sh64_elf64_vec
3961 #define TARGET_BIG_NAME "elf64-sh64"
3962 #define TARGET_LITTLE_SYM sh64_elf64_le_vec
3963 #define TARGET_LITTLE_NAME "elf64-sh64l"
3964 #define ELF_ARCH bfd_arch_sh
3965 #define ELF_MACHINE_CODE EM_SH
3966 #define ELF_MAXPAGESIZE 128
3967
3968 #define elf_symbol_leading_char '_'
3969
3970 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
3971 #define bfd_elf64_bfd_reloc_name_lookup \
3972 sh_elf64_reloc_name_lookup
3973 #define elf_info_to_howto sh_elf64_info_to_howto
3974
3975 /* Note: there's no relaxation at present. */
3976
3977 #define elf_backend_relocate_section sh_elf64_relocate_section
3978 #define bfd_elf64_bfd_get_relocated_section_contents \
3979 sh_elf64_get_relocated_section_contents
3980 #define elf_backend_object_p sh_elf64_set_mach_from_flags
3981 #define bfd_elf64_bfd_set_private_flags \
3982 sh_elf64_set_private_flags
3983 #define bfd_elf64_bfd_copy_private_bfd_data \
3984 sh_elf64_copy_private_data
3985 #define bfd_elf64_bfd_merge_private_bfd_data \
3986 sh_elf64_merge_private_data
3987 #define elf_backend_fake_sections sh64_elf64_fake_sections
3988
3989 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
3990 #define elf_backend_check_relocs sh_elf64_check_relocs
3991
3992 #define elf_backend_can_gc_sections 1
3993
3994 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
3995
3996 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
3997
3998 #define elf_backend_link_output_symbol_hook \
3999 sh64_elf64_link_output_symbol_hook
4000
4001 #define elf_backend_merge_symbol_attribute \
4002 sh64_elf64_merge_symbol_attribute
4003
4004 #define elf_backend_final_write_processing \
4005 sh64_elf64_final_write_processing
4006
4007 #define elf_backend_create_dynamic_sections \
4008 sh64_elf64_create_dynamic_sections
4009 #define bfd_elf64_bfd_link_hash_table_create \
4010 sh64_elf64_link_hash_table_create
4011 #define elf_backend_adjust_dynamic_symbol \
4012 sh64_elf64_adjust_dynamic_symbol
4013 #define elf_backend_size_dynamic_sections \
4014 sh64_elf64_size_dynamic_sections
4015 #define elf_backend_omit_section_dynsym \
4016 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4017 #define elf_backend_finish_dynamic_symbol \
4018 sh64_elf64_finish_dynamic_symbol
4019 #define elf_backend_finish_dynamic_sections \
4020 sh64_elf64_finish_dynamic_sections
4021 #define elf_backend_special_sections sh64_elf64_special_sections
4022
4023 #define elf_backend_want_got_plt 1
4024 #define elf_backend_plt_readonly 1
4025 #define elf_backend_want_plt_sym 0
4026 #define elf_backend_got_header_size 24
4027
4028 #include "elf64-target.h"
4029
4030 /* NetBSD support. */
4031 #undef TARGET_BIG_SYM
4032 #define TARGET_BIG_SYM sh64_elf64_nbsd_vec
4033 #undef TARGET_BIG_NAME
4034 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
4035 #undef TARGET_LITTLE_SYM
4036 #define TARGET_LITTLE_SYM sh64_elf64_nbsd_le_vec
4037 #undef TARGET_LITTLE_NAME
4038 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
4039 #undef ELF_MAXPAGESIZE
4040 #define ELF_MAXPAGESIZE 0x10000
4041 #undef elf_symbol_leading_char
4042 #define elf_symbol_leading_char 0
4043
4044 #define elf64_bed elf64_sh64_nbsd_bed
4045
4046 #include "elf64-target.h"
4047
4048 /* Linux support. */
4049 #undef TARGET_BIG_SYM
4050 #define TARGET_BIG_SYM sh64_elf64_linux_be_vec
4051 #undef TARGET_BIG_NAME
4052 #define TARGET_BIG_NAME "elf64-sh64big-linux"
4053 #undef TARGET_LITTLE_SYM
4054 #define TARGET_LITTLE_SYM sh64_elf64_linux_vec
4055 #undef TARGET_LITTLE_NAME
4056 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
4057 #undef elf64_bed
4058 #define elf64_bed elf64_sh64_linux_bed
4059
4060 #include "elf64-target.h"
GDB Binutils - Deliverables
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