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2004-12-01 Paul Brook <paul@codesourcery.com>
[binutils.git] / bfd / elf64-sh64.c
blob15f7a43857d2f5a10302c742520f6752801eca83
1 /* SuperH SH64-specific support for 64-bit ELF
2 Copyright 2000, 2001, 2002, 2003, 2004 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20 #define SH64_ELF64
21
22 #include "bfd.h"
23 #include "sysdep.h"
24 #include "bfdlink.h"
25 #include "libbfd.h"
26 #include "elf-bfd.h"
27 #include "elf/sh.h"
28
29 /* Add a suffix for datalabel indirection symbols. It must not match any
30 other symbols; user symbols with or without version or other
31 decoration. It must only be used internally and not emitted by any
32 means. */
33 #define DATALABEL_SUFFIX " DL"
34
35 #define GOT_BIAS (-((long)-32768))
36
37 #define PLT_ENTRY_SIZE 64
38
39 /* Return size of a PLT entry. */
40 #define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE
41
42 /* Return offset of the PLT0 address in an absolute PLT entry. */
43 #define elf_sh64_plt_plt0_offset(info) 32
44
45 /* Return offset of the linker in PLT0 entry. */
46 #define elf_sh64_plt0_gotplt_offset(info) 0
47
48 /* Return offset of the trampoline in PLT entry */
49 #define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
50
51 /* Return offset of the symbol in PLT entry. */
52 #define elf_sh64_plt_symbol_offset(info) 0
53
54 /* Return offset of the relocation in PLT entry. */
55 #define elf_sh64_plt_reloc_offset(info) (info->shared ? 52 : 44)
56
57 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
58
59 /* The sh linker needs to keep track of the number of relocs that it
60 decides to copy in check_relocs for each symbol. This is so that
61 it can discard PC relative relocs if it doesn't need them when
62 linking with -Bsymbolic. We store the information in a field
63 extending the regular ELF linker hash table. */
64
65 /* This structure keeps track of the number of PC relative relocs we
66 have copied for a given symbol. */
67
68 struct elf_sh64_pcrel_relocs_copied
69 {
70 /* Next section. */
71 struct elf_sh64_pcrel_relocs_copied *next;
72 /* A section in dynobj. */
73 asection *section;
74 /* Number of relocs copied in this section. */
75 bfd_size_type count;
76 };
77
78 /* sh ELF linker hash entry. */
79
80 struct elf_sh64_link_hash_entry
81 {
82 struct elf_link_hash_entry root;
83
84 bfd_vma datalabel_got_offset;
85
86 /* Number of PC relative relocs copied for this symbol. */
87 struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied;
88 };
89
90 /* sh ELF linker hash table. */
91
92 struct elf_sh64_link_hash_table
93 {
94 struct elf_link_hash_table root;
95 };
96
97 /* Traverse an sh ELF linker hash table. */
98
99 #define sh64_elf64_link_hash_traverse(table, func, info) \
100 (elf_link_hash_traverse \
101 (&(table)->root, \
102 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
103 (info)))
104
105 /* Get the sh ELF linker hash table from a link_info structure. */
106
107 #define sh64_elf64_hash_table(p) \
108 ((struct elf_sh64_link_hash_table *) ((p)->hash))
109
110 static bfd_boolean sh_elf64_copy_private_data
111 (bfd *, bfd *);
112 static bfd_boolean sh_elf64_copy_private_data_internal
113 (bfd *, bfd *);
114 static bfd_boolean sh_elf64_merge_private_data
115 (bfd *, bfd *);
116 static bfd_reloc_status_type sh_elf64_ignore_reloc
117 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
118 static bfd_reloc_status_type sh_elf64_reloc
119 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
120 static reloc_howto_type *sh_elf64_reloc_type_lookup
121 (bfd *, bfd_reloc_code_real_type);
122 static void sh_elf64_info_to_howto
123 (bfd *, arelent *, Elf_Internal_Rela *);
124 static bfd_boolean sh_elf64_relocate_section
125 (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
126 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
127 static bfd_byte *sh_elf64_get_relocated_section_contents
128 (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
129 bfd_boolean, asymbol **);
130 static bfd_boolean sh_elf64_set_mach_from_flags
131 (bfd *);
132 static bfd_boolean sh_elf64_set_private_flags
133 (bfd *, flagword);
134 static asection *sh_elf64_gc_mark_hook
135 (asection *, struct bfd_link_info *, Elf_Internal_Rela *,
136 struct elf_link_hash_entry *, Elf_Internal_Sym *);
137 static bfd_boolean sh_elf64_gc_sweep_hook
138 (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
139 static bfd_boolean sh_elf64_check_relocs
140 (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
141 static int sh64_elf64_get_symbol_type
142 (Elf_Internal_Sym *, int);
143 static bfd_boolean sh64_elf64_add_symbol_hook
144 (bfd *, struct bfd_link_info *, Elf_Internal_Sym *, const char **,
145 flagword *, asection **, bfd_vma *);
146 static bfd_boolean sh64_elf64_link_output_symbol_hook
147 (struct bfd_link_info *, const char *, Elf_Internal_Sym *, asection *,
148 struct elf_link_hash_entry *);
149 static bfd_boolean sh64_elf64_fake_sections
150 (bfd *, Elf_Internal_Shdr *, asection *);
151 static void sh64_elf64_final_write_processing
152 (bfd *, bfd_boolean);
153 static struct bfd_hash_entry *sh64_elf64_link_hash_newfunc
154 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
155 static struct bfd_link_hash_table *sh64_elf64_link_hash_table_create
156 (bfd *);
157 inline static void movi_shori_putval
158 (bfd *, unsigned long, char *);
159 inline static void movi_3shori_putval
160 (bfd *, bfd_vma, char *);
161 static bfd_boolean sh64_elf64_create_dynamic_sections
162 (bfd *, struct bfd_link_info *);
163 static bfd_boolean sh64_elf64_adjust_dynamic_symbol
164 (struct bfd_link_info *info, struct elf_link_hash_entry *);
165 static bfd_boolean sh64_elf64_discard_copies
166 (struct elf_sh64_link_hash_entry *, void *);
167 static bfd_boolean sh64_elf64_size_dynamic_sections
168 (bfd *, struct bfd_link_info *);
169 static bfd_boolean sh64_elf64_finish_dynamic_symbol
170 (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
171 Elf_Internal_Sym *);
172 static bfd_boolean sh64_elf64_finish_dynamic_sections
173 (bfd *, struct bfd_link_info *);
174
175 static reloc_howto_type sh_elf64_howto_table[] = {
176 /* No relocation. */
177 HOWTO (R_SH_NONE, /* type */
178 0, /* rightshift */
179 0, /* size (0 = byte, 1 = short, 2 = long) */
180 0, /* bitsize */
181 FALSE, /* pc_relative */
182 0, /* bitpos */
183 complain_overflow_dont, /* complain_on_overflow */
184 sh_elf64_ignore_reloc, /* special_function */
185 "R_SH_NONE", /* name */
186 FALSE, /* partial_inplace */
187 0, /* src_mask */
188 0, /* dst_mask */
189 FALSE), /* pcrel_offset */
190
191 /* 32 bit absolute relocation. Setting partial_inplace to TRUE and
192 src_mask to a non-zero value is similar to the COFF toolchain. */
193 HOWTO (R_SH_DIR32, /* type */
194 0, /* rightshift */
195 2, /* size (0 = byte, 1 = short, 2 = long) */
196 32, /* bitsize */
197 FALSE, /* pc_relative */
198 0, /* bitpos */
199 complain_overflow_bitfield, /* complain_on_overflow */
200 sh_elf64_reloc, /* special_function */
201 "R_SH_DIR32", /* name */
202 TRUE, /* partial_inplace */
203 0xffffffff, /* src_mask */
204 0xffffffff, /* dst_mask */
205 FALSE), /* pcrel_offset */
206
207 /* 32 bit PC relative relocation. */
208 HOWTO (R_SH_REL32, /* type */
209 0, /* rightshift */
210 2, /* size (0 = byte, 1 = short, 2 = long) */
211 32, /* bitsize */
212 TRUE, /* pc_relative */
213 0, /* bitpos */
214 complain_overflow_signed, /* complain_on_overflow */
215 sh_elf64_ignore_reloc, /* special_function */
216 "R_SH_REL32", /* name */
217 FALSE, /* partial_inplace */
218 0, /* src_mask */
219 0xffffffff, /* dst_mask */
220 TRUE), /* pcrel_offset */
221
222 /* For 32-bit sh, this is R_SH_DIR8WPN. */
223 EMPTY_HOWTO (3),
224
225 /* For 32-bit sh, this is R_SH_IND12W. */
226 EMPTY_HOWTO (4),
227
228 /* For 32-bit sh, this is R_SH_DIR8WPL. */
229 EMPTY_HOWTO (5),
230
231 /* For 32-bit sh, this is R_SH_DIR8WPZ. */
232 EMPTY_HOWTO (6),
233
234 /* For 32-bit sh, this is R_SH_DIR8BP. */
235 EMPTY_HOWTO (7),
236
237 /* For 32-bit sh, this is R_SH_DIR8W. */
238 EMPTY_HOWTO (8),
239
240 /* For 32-bit sh, this is R_SH_DIR8L. */
241 EMPTY_HOWTO (9),
242
243 EMPTY_HOWTO (10),
244 EMPTY_HOWTO (11),
245 EMPTY_HOWTO (12),
246 EMPTY_HOWTO (13),
247 EMPTY_HOWTO (14),
248 EMPTY_HOWTO (15),
249 EMPTY_HOWTO (16),
250 EMPTY_HOWTO (17),
251 EMPTY_HOWTO (18),
252 EMPTY_HOWTO (19),
253 EMPTY_HOWTO (20),
254 EMPTY_HOWTO (21),
255 EMPTY_HOWTO (22),
256 EMPTY_HOWTO (23),
257 EMPTY_HOWTO (24),
258
259 /* The remaining relocs are a GNU extension used for relaxing. The
260 final pass of the linker never needs to do anything with any of
261 these relocs. Any required operations are handled by the
262 relaxation code. */
263
264 /* A 16 bit switch table entry. This is generated for an expression
265 such as ``.word L1 - L2''. The offset holds the difference
266 between the reloc address and L2. */
267 HOWTO (R_SH_SWITCH16, /* type */
268 0, /* rightshift */
269 1, /* size (0 = byte, 1 = short, 2 = long) */
270 16, /* bitsize */
271 FALSE, /* pc_relative */
272 0, /* bitpos */
273 complain_overflow_unsigned, /* complain_on_overflow */
274 sh_elf64_ignore_reloc, /* special_function */
275 "R_SH_SWITCH16", /* name */
276 FALSE, /* partial_inplace */
277 0, /* src_mask */
278 0, /* dst_mask */
279 TRUE), /* pcrel_offset */
280
281 /* A 32 bit switch table entry. This is generated for an expression
282 such as ``.long L1 - L2''. The offset holds the difference
283 between the reloc address and L2. */
284 HOWTO (R_SH_SWITCH32, /* type */
285 0, /* rightshift */
286 2, /* size (0 = byte, 1 = short, 2 = long) */
287 32, /* bitsize */
288 FALSE, /* pc_relative */
289 0, /* bitpos */
290 complain_overflow_unsigned, /* complain_on_overflow */
291 sh_elf64_ignore_reloc, /* special_function */
292 "R_SH_SWITCH32", /* name */
293 FALSE, /* partial_inplace */
294 0, /* src_mask */
295 0, /* dst_mask */
296 TRUE), /* pcrel_offset */
297
298 /* For 32-bit sh, this is R_SH_USES. */
299 EMPTY_HOWTO (27),
300
301 /* For 32-bit sh, this is R_SH_COUNT. */
302 EMPTY_HOWTO (28),
303
304 /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation,
305 this might be emitted. When linker relaxation is implemented, we
306 might want to use it. */
307 EMPTY_HOWTO (29),
308
309 /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation,
310 this might be emitted. When linker relaxation is implemented, we
311 might want to use it. */
312 EMPTY_HOWTO (30),
313
314 /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation,
315 this might be emitted. When linker relaxation is implemented, we
316 might want to use it. */
317 EMPTY_HOWTO (31),
318
319 /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation,
320 this might be emitted. When linker relaxation is implemented, we
321 might want to use it. */
322 EMPTY_HOWTO (32),
323
324 /* An 8 bit switch table entry. This is generated for an expression
325 such as ``.word L1 - L2''. The offset holds the difference
326 between the reloc address and L2. */
327 HOWTO (R_SH_SWITCH8, /* type */
328 0, /* rightshift */
329 0, /* size (0 = byte, 1 = short, 2 = long) */
330 8, /* bitsize */
331 FALSE, /* pc_relative */
332 0, /* bitpos */
333 complain_overflow_unsigned, /* complain_on_overflow */
334 sh_elf64_ignore_reloc, /* special_function */
335 "R_SH_SWITCH8", /* name */
336 FALSE, /* partial_inplace */
337 0, /* src_mask */
338 0, /* dst_mask */
339 TRUE), /* pcrel_offset */
340
341 /* GNU extension to record C++ vtable hierarchy */
342 HOWTO (R_SH_GNU_VTINHERIT, /* type */
343 0, /* rightshift */
344 2, /* size (0 = byte, 1 = short, 2 = long) */
345 0, /* bitsize */
346 FALSE, /* pc_relative */
347 0, /* bitpos */
348 complain_overflow_dont, /* complain_on_overflow */
349 NULL, /* special_function */
350 "R_SH_GNU_VTINHERIT", /* name */
351 FALSE, /* partial_inplace */
352 0, /* src_mask */
353 0, /* dst_mask */
354 FALSE), /* pcrel_offset */
355
356 /* GNU extension to record C++ vtable member usage */
357 HOWTO (R_SH_GNU_VTENTRY, /* type */
358 0, /* rightshift */
359 2, /* size (0 = byte, 1 = short, 2 = long) */
360 0, /* bitsize */
361 FALSE, /* pc_relative */
362 0, /* bitpos */
363 complain_overflow_dont, /* complain_on_overflow */
364 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
365 "R_SH_GNU_VTENTRY", /* name */
366 FALSE, /* partial_inplace */
367 0, /* src_mask */
368 0, /* dst_mask */
369 FALSE), /* pcrel_offset */
370
371 /* For 32-bit sh, this is R_SH_LOOP_START. */
372 EMPTY_HOWTO (36),
373
374 /* For 32-bit sh, this is R_SH_LOOP_END. */
375 EMPTY_HOWTO (37),
376
377 EMPTY_HOWTO (38),
378 EMPTY_HOWTO (39),
379 EMPTY_HOWTO (40),
380 EMPTY_HOWTO (41),
381 EMPTY_HOWTO (42),
382 EMPTY_HOWTO (43),
383 EMPTY_HOWTO (44),
384
385 /* Used in SHLLI.L and SHLRI.L. */
386 HOWTO (R_SH_DIR5U, /* type */
387 0, /* rightshift */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
389 5, /* bitsize */
390 FALSE, /* pc_relative */
391 10, /* bitpos */
392 complain_overflow_unsigned, /* complain_on_overflow */
393 bfd_elf_generic_reloc, /* special_function */
394 "R_SH_DIR5U", /* name */
395 FALSE, /* partial_inplace */
396 0, /* src_mask */
397 0xfc00, /* dst_mask */
398 FALSE), /* pcrel_offset */
399
400 /* Used in SHARI, SHLLI et al. */
401 HOWTO (R_SH_DIR6U, /* type */
402 0, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 6, /* bitsize */
405 FALSE, /* pc_relative */
406 10, /* bitpos */
407 complain_overflow_unsigned, /* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_SH_DIR6U", /* name */
410 FALSE, /* partial_inplace */
411 0, /* src_mask */
412 0xfc00, /* dst_mask */
413 FALSE), /* pcrel_offset */
414
415 /* Used in BxxI, LDHI.L et al. */
416 HOWTO (R_SH_DIR6S, /* type */
417 0, /* rightshift */
418 2, /* size (0 = byte, 1 = short, 2 = long) */
419 6, /* bitsize */
420 FALSE, /* pc_relative */
421 10, /* bitpos */
422 complain_overflow_signed, /* complain_on_overflow */
423 bfd_elf_generic_reloc, /* special_function */
424 "R_SH_DIR6S", /* name */
425 FALSE, /* partial_inplace */
426 0, /* src_mask */
427 0xfc00, /* dst_mask */
428 FALSE), /* pcrel_offset */
429
430 /* Used in ADDI, ANDI et al. */
431 HOWTO (R_SH_DIR10S, /* type */
432 0, /* rightshift */
433 2, /* size (0 = byte, 1 = short, 2 = long) */
434 10, /* bitsize */
435 FALSE, /* pc_relative */
436 10, /* bitpos */
437 complain_overflow_signed, /* complain_on_overflow */
438 bfd_elf_generic_reloc, /* special_function */
439 "R_SH_DIR10S", /* name */
440 FALSE, /* partial_inplace */
441 0, /* src_mask */
442 0xffc00, /* dst_mask */
443 FALSE), /* pcrel_offset */
444
445 /* Used in LD.UW, ST.W et al. */
446 HOWTO (R_SH_DIR10SW, /* type */
447 1, /* rightshift */
448 2, /* size (0 = byte, 1 = short, 2 = long) */
449 11, /* bitsize */
450 FALSE, /* pc_relative */
451 10, /* bitpos */
452 complain_overflow_signed, /* complain_on_overflow */
453 bfd_elf_generic_reloc, /* special_function */
454 "R_SH_DIR10SW", /* name */
455 FALSE, /* partial_inplace */
456 0, /* src_mask */
457 0xffc00, /* dst_mask */
458 FALSE), /* pcrel_offset */
459
460 /* Used in LD.L, FLD.S et al. */
461 HOWTO (R_SH_DIR10SL, /* type */
462 2, /* rightshift */
463 2, /* size (0 = byte, 1 = short, 2 = long) */
464 12, /* bitsize */
465 FALSE, /* pc_relative */
466 10, /* bitpos */
467 complain_overflow_signed, /* complain_on_overflow */
468 bfd_elf_generic_reloc, /* special_function */
469 "R_SH_DIR10SL", /* name */
470 FALSE, /* partial_inplace */
471 0, /* src_mask */
472 0xffc00, /* dst_mask */
473 FALSE), /* pcrel_offset */
474
475 /* Used in FLD.D, FST.P et al. */
476 HOWTO (R_SH_DIR10SQ, /* type */
477 3, /* rightshift */
478 2, /* size (0 = byte, 1 = short, 2 = long) */
479 13, /* bitsize */
480 FALSE, /* pc_relative */
481 10, /* bitpos */
482 complain_overflow_signed, /* complain_on_overflow */
483 bfd_elf_generic_reloc, /* special_function */
484 "R_SH_DIR10SQ", /* name */
485 FALSE, /* partial_inplace */
486 0, /* src_mask */
487 0xffc00, /* dst_mask */
488 FALSE), /* pcrel_offset */
489
490 EMPTY_HOWTO (52),
491 EMPTY_HOWTO (53),
492 EMPTY_HOWTO (54),
493 EMPTY_HOWTO (55),
494 EMPTY_HOWTO (56),
495 EMPTY_HOWTO (57),
496 EMPTY_HOWTO (58),
497 EMPTY_HOWTO (59),
498 EMPTY_HOWTO (60),
499 EMPTY_HOWTO (61),
500 EMPTY_HOWTO (62),
501 EMPTY_HOWTO (63),
502 EMPTY_HOWTO (64),
503 EMPTY_HOWTO (65),
504 EMPTY_HOWTO (66),
505 EMPTY_HOWTO (67),
506 EMPTY_HOWTO (68),
507 EMPTY_HOWTO (69),
508 EMPTY_HOWTO (70),
509 EMPTY_HOWTO (71),
510 EMPTY_HOWTO (72),
511 EMPTY_HOWTO (73),
512 EMPTY_HOWTO (74),
513 EMPTY_HOWTO (75),
514 EMPTY_HOWTO (76),
515 EMPTY_HOWTO (77),
516 EMPTY_HOWTO (78),
517 EMPTY_HOWTO (79),
518 EMPTY_HOWTO (80),
519 EMPTY_HOWTO (81),
520 EMPTY_HOWTO (82),
521 EMPTY_HOWTO (83),
522 EMPTY_HOWTO (84),
523 EMPTY_HOWTO (85),
524 EMPTY_HOWTO (86),
525 EMPTY_HOWTO (87),
526 EMPTY_HOWTO (88),
527 EMPTY_HOWTO (89),
528 EMPTY_HOWTO (90),
529 EMPTY_HOWTO (91),
530 EMPTY_HOWTO (92),
531 EMPTY_HOWTO (93),
532 EMPTY_HOWTO (94),
533 EMPTY_HOWTO (95),
534 EMPTY_HOWTO (96),
535 EMPTY_HOWTO (97),
536 EMPTY_HOWTO (98),
537 EMPTY_HOWTO (99),
538 EMPTY_HOWTO (100),
539 EMPTY_HOWTO (101),
540 EMPTY_HOWTO (102),
541 EMPTY_HOWTO (103),
542 EMPTY_HOWTO (104),
543 EMPTY_HOWTO (105),
544 EMPTY_HOWTO (106),
545 EMPTY_HOWTO (107),
546 EMPTY_HOWTO (108),
547 EMPTY_HOWTO (109),
548 EMPTY_HOWTO (110),
549 EMPTY_HOWTO (111),
550 EMPTY_HOWTO (112),
551 EMPTY_HOWTO (113),
552 EMPTY_HOWTO (114),
553 EMPTY_HOWTO (115),
554 EMPTY_HOWTO (116),
555 EMPTY_HOWTO (117),
556 EMPTY_HOWTO (118),
557 EMPTY_HOWTO (119),
558 EMPTY_HOWTO (120),
559 EMPTY_HOWTO (121),
560 EMPTY_HOWTO (122),
561 EMPTY_HOWTO (123),
562 EMPTY_HOWTO (124),
563 EMPTY_HOWTO (125),
564 EMPTY_HOWTO (126),
565 EMPTY_HOWTO (127),
566 EMPTY_HOWTO (128),
567 EMPTY_HOWTO (129),
568 EMPTY_HOWTO (130),
569 EMPTY_HOWTO (131),
570 EMPTY_HOWTO (132),
571 EMPTY_HOWTO (133),
572 EMPTY_HOWTO (134),
573 EMPTY_HOWTO (135),
574 EMPTY_HOWTO (136),
575 EMPTY_HOWTO (137),
576 EMPTY_HOWTO (138),
577 EMPTY_HOWTO (139),
578 EMPTY_HOWTO (140),
579 EMPTY_HOWTO (141),
580 EMPTY_HOWTO (142),
581 EMPTY_HOWTO (143),
582 EMPTY_HOWTO (144),
583 EMPTY_HOWTO (145),
584 EMPTY_HOWTO (146),
585 EMPTY_HOWTO (147),
586 EMPTY_HOWTO (148),
587 EMPTY_HOWTO (149),
588 EMPTY_HOWTO (150),
589 EMPTY_HOWTO (151),
590 EMPTY_HOWTO (152),
591 EMPTY_HOWTO (153),
592 EMPTY_HOWTO (154),
593 EMPTY_HOWTO (155),
594 EMPTY_HOWTO (156),
595 EMPTY_HOWTO (157),
596 EMPTY_HOWTO (158),
597 EMPTY_HOWTO (159),
598
599 /* Relocs for dynamic linking for 32-bit SH would follow. We don't have
600 any dynamic linking support for 64-bit SH at present. */
601
602 EMPTY_HOWTO (160),
603 EMPTY_HOWTO (161),
604 EMPTY_HOWTO (162),
605 EMPTY_HOWTO (163),
606 EMPTY_HOWTO (164),
607 EMPTY_HOWTO (165),
608 EMPTY_HOWTO (166),
609 EMPTY_HOWTO (167),
610 EMPTY_HOWTO (168),
611
612 /* Back to SH5 relocations. */
613 /* Used in MOVI and SHORI (x & 65536). */
614 HOWTO (R_SH_GOT_LOW16, /* type */
615 0, /* rightshift */
616 2, /* size (0 = byte, 1 = short, 2 = long) */
617 64, /* bitsize */
618 FALSE, /* pc_relative */
619 10, /* bitpos */
620 complain_overflow_dont, /* complain_on_overflow */
621 bfd_elf_generic_reloc, /* special_function */
622 "R_SH_GOT_LOW16", /* name */
623 FALSE, /* partial_inplace */
624 0, /* src_mask */
625 0x3fffc00, /* dst_mask */
626 FALSE), /* pcrel_offset */
627
628 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
629 HOWTO (R_SH_GOT_MEDLOW16, /* type */
630 16, /* rightshift */
631 2, /* size (0 = byte, 1 = short, 2 = long) */
632 64, /* bitsize */
633 FALSE, /* pc_relative */
634 10, /* bitpos */
635 complain_overflow_dont, /* complain_on_overflow */
636 bfd_elf_generic_reloc, /* special_function */
637 "R_SH_GOT_MEDLOW16", /* name */
638 FALSE, /* partial_inplace */
639 0, /* src_mask */
640 0x3fffc00, /* dst_mask */
641 FALSE), /* pcrel_offset */
642
643 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
644 HOWTO (R_SH_GOT_MEDHI16, /* type */
645 32, /* rightshift */
646 2, /* size (0 = byte, 1 = short, 2 = long) */
647 64, /* bitsize */
648 FALSE, /* pc_relative */
649 10, /* bitpos */
650 complain_overflow_dont, /* complain_on_overflow */
651 bfd_elf_generic_reloc, /* special_function */
652 "R_SH_GOT_MEDHI16", /* name */
653 FALSE, /* partial_inplace */
654 0, /* src_mask */
655 0x3fffc00, /* dst_mask */
656 FALSE), /* pcrel_offset */
657
658 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
659 HOWTO (R_SH_GOT_HI16, /* type */
660 48, /* rightshift */
661 2, /* size (0 = byte, 1 = short, 2 = long) */
662 64, /* bitsize */
663 FALSE, /* pc_relative */
664 10, /* bitpos */
665 complain_overflow_dont, /* complain_on_overflow */
666 bfd_elf_generic_reloc, /* special_function */
667 "R_SH_GOT_HI16", /* name */
668 FALSE, /* partial_inplace */
669 0, /* src_mask */
670 0x3fffc00, /* dst_mask */
671 FALSE), /* pcrel_offset */
672
673 /* Used in MOVI and SHORI (x & 65536). */
674 HOWTO (R_SH_GOTPLT_LOW16, /* type */
675 0, /* rightshift */
676 2, /* size (0 = byte, 1 = short, 2 = long) */
677 64, /* bitsize */
678 FALSE, /* pc_relative */
679 10, /* bitpos */
680 complain_overflow_dont, /* complain_on_overflow */
681 bfd_elf_generic_reloc, /* special_function */
682 "R_SH_GOTPLT_LOW16", /* name */
683 FALSE, /* partial_inplace */
684 0, /* src_mask */
685 0x3fffc00, /* dst_mask */
686 FALSE), /* pcrel_offset */
687
688 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
689 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */
690 16, /* rightshift */
691 2, /* size (0 = byte, 1 = short, 2 = long) */
692 64, /* bitsize */
693 FALSE, /* pc_relative */
694 10, /* bitpos */
695 complain_overflow_dont, /* complain_on_overflow */
696 bfd_elf_generic_reloc, /* special_function */
697 "R_SH_GOTPLT_MEDLOW16", /* name */
698 FALSE, /* partial_inplace */
699 0, /* src_mask */
700 0x3fffc00, /* dst_mask */
701 FALSE), /* pcrel_offset */
702
703 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
704 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */
705 32, /* rightshift */
706 2, /* size (0 = byte, 1 = short, 2 = long) */
707 64, /* bitsize */
708 FALSE, /* pc_relative */
709 10, /* bitpos */
710 complain_overflow_dont, /* complain_on_overflow */
711 bfd_elf_generic_reloc, /* special_function */
712 "R_SH_GOTPLT_MEDHI16", /* name */
713 FALSE, /* partial_inplace */
714 0, /* src_mask */
715 0x3fffc00, /* dst_mask */
716 FALSE), /* pcrel_offset */
717
718 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
719 HOWTO (R_SH_GOTPLT_HI16, /* type */
720 48, /* rightshift */
721 2, /* size (0 = byte, 1 = short, 2 = long) */
722 64, /* bitsize */
723 FALSE, /* pc_relative */
724 10, /* bitpos */
725 complain_overflow_dont, /* complain_on_overflow */
726 bfd_elf_generic_reloc, /* special_function */
727 "R_SH_GOTPLT_HI16", /* name */
728 FALSE, /* partial_inplace */
729 0, /* src_mask */
730 0x3fffc00, /* dst_mask */
731 FALSE), /* pcrel_offset */
732
733 /* Used in MOVI and SHORI (x & 65536). */
734 HOWTO (R_SH_PLT_LOW16, /* type */
735 0, /* rightshift */
736 2, /* size (0 = byte, 1 = short, 2 = long) */
737 64, /* bitsize */
738 TRUE, /* pc_relative */
739 10, /* bitpos */
740 complain_overflow_dont, /* complain_on_overflow */
741 bfd_elf_generic_reloc, /* special_function */
742 "R_SH_PLT_LOW16", /* name */
743 FALSE, /* partial_inplace */
744 0, /* src_mask */
745 0x3fffc00, /* dst_mask */
746 TRUE), /* pcrel_offset */
747
748 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
749 HOWTO (R_SH_PLT_MEDLOW16, /* type */
750 16, /* rightshift */
751 2, /* size (0 = byte, 1 = short, 2 = long) */
752 64, /* bitsize */
753 TRUE, /* pc_relative */
754 10, /* bitpos */
755 complain_overflow_dont, /* complain_on_overflow */
756 bfd_elf_generic_reloc, /* special_function */
757 "R_SH_PLT_MEDLOW16", /* name */
758 FALSE, /* partial_inplace */
759 0, /* src_mask */
760 0x3fffc00, /* dst_mask */
761 TRUE), /* pcrel_offset */
762
763 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
764 HOWTO (R_SH_PLT_MEDHI16, /* type */
765 32, /* rightshift */
766 2, /* size (0 = byte, 1 = short, 2 = long) */
767 64, /* bitsize */
768 TRUE, /* pc_relative */
769 10, /* bitpos */
770 complain_overflow_dont, /* complain_on_overflow */
771 bfd_elf_generic_reloc, /* special_function */
772 "R_SH_PLT_MEDHI16", /* name */
773 FALSE, /* partial_inplace */
774 0, /* src_mask */
775 0x3fffc00, /* dst_mask */
776 TRUE), /* pcrel_offset */
777
778 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
779 HOWTO (R_SH_PLT_HI16, /* type */
780 48, /* rightshift */
781 2, /* size (0 = byte, 1 = short, 2 = long) */
782 64, /* bitsize */
783 TRUE, /* pc_relative */
784 10, /* bitpos */
785 complain_overflow_dont, /* complain_on_overflow */
786 bfd_elf_generic_reloc, /* special_function */
787 "R_SH_PLT_HI16", /* name */
788 FALSE, /* partial_inplace */
789 0, /* src_mask */
790 0x3fffc00, /* dst_mask */
791 TRUE), /* pcrel_offset */
792
793 /* Used in MOVI and SHORI (x & 65536). */
794 HOWTO (R_SH_GOTOFF_LOW16, /* type */
795 0, /* rightshift */
796 2, /* size (0 = byte, 1 = short, 2 = long) */
797 64, /* bitsize */
798 FALSE, /* pc_relative */
799 10, /* bitpos */
800 complain_overflow_dont, /* complain_on_overflow */
801 bfd_elf_generic_reloc, /* special_function */
802 "R_SH_GOTOFF_LOW16", /* name */
803 FALSE, /* partial_inplace */
804 0, /* src_mask */
805 0x3fffc00, /* dst_mask */
806 FALSE), /* pcrel_offset */
807
808 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
809 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */
810 16, /* rightshift */
811 2, /* size (0 = byte, 1 = short, 2 = long) */
812 64, /* bitsize */
813 FALSE, /* pc_relative */
814 10, /* bitpos */
815 complain_overflow_dont, /* complain_on_overflow */
816 bfd_elf_generic_reloc, /* special_function */
817 "R_SH_GOTOFF_MEDLOW16", /* name */
818 FALSE, /* partial_inplace */
819 0, /* src_mask */
820 0x3fffc00, /* dst_mask */
821 FALSE), /* pcrel_offset */
822
823 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
824 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */
825 32, /* rightshift */
826 2, /* size (0 = byte, 1 = short, 2 = long) */
827 64, /* bitsize */
828 FALSE, /* pc_relative */
829 10, /* bitpos */
830 complain_overflow_dont, /* complain_on_overflow */
831 bfd_elf_generic_reloc, /* special_function */
832 "R_SH_GOTOFF_MEDHI16", /* name */
833 FALSE, /* partial_inplace */
834 0, /* src_mask */
835 0x3fffc00, /* dst_mask */
836 FALSE), /* pcrel_offset */
837
838 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
839 HOWTO (R_SH_GOTOFF_HI16, /* type */
840 48, /* rightshift */
841 2, /* size (0 = byte, 1 = short, 2 = long) */
842 64, /* bitsize */
843 FALSE, /* pc_relative */
844 10, /* bitpos */
845 complain_overflow_dont, /* complain_on_overflow */
846 bfd_elf_generic_reloc, /* special_function */
847 "R_SH_GOTOFF_HI16", /* name */
848 FALSE, /* partial_inplace */
849 0, /* src_mask */
850 0x3fffc00, /* dst_mask */
851 FALSE), /* pcrel_offset */
852
853 /* Used in MOVI and SHORI (x & 65536). */
854 HOWTO (R_SH_GOTPC_LOW16, /* type */
855 0, /* rightshift */
856 2, /* size (0 = byte, 1 = short, 2 = long) */
857 64, /* bitsize */
858 TRUE, /* pc_relative */
859 10, /* bitpos */
860 complain_overflow_dont, /* complain_on_overflow */
861 bfd_elf_generic_reloc, /* special_function */
862 "R_SH_GOTPC_LOW16", /* name */
863 FALSE, /* partial_inplace */
864 0, /* src_mask */
865 0x3fffc00, /* dst_mask */
866 TRUE), /* pcrel_offset */
867
868 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
869 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */
870 16, /* rightshift */
871 2, /* size (0 = byte, 1 = short, 2 = long) */
872 64, /* bitsize */
873 TRUE, /* pc_relative */
874 10, /* bitpos */
875 complain_overflow_dont, /* complain_on_overflow */
876 bfd_elf_generic_reloc, /* special_function */
877 "R_SH_GOTPC_MEDLOW16", /* name */
878 FALSE, /* partial_inplace */
879 0, /* src_mask */
880 0x3fffc00, /* dst_mask */
881 TRUE), /* pcrel_offset */
882
883 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
884 HOWTO (R_SH_GOTPC_MEDHI16, /* type */
885 32, /* rightshift */
886 2, /* size (0 = byte, 1 = short, 2 = long) */
887 64, /* bitsize */
888 TRUE, /* pc_relative */
889 10, /* bitpos */
890 complain_overflow_dont, /* complain_on_overflow */
891 bfd_elf_generic_reloc, /* special_function */
892 "R_SH_GOTPC_MEDHI16", /* name */
893 FALSE, /* partial_inplace */
894 0, /* src_mask */
895 0x3fffc00, /* dst_mask */
896 TRUE), /* pcrel_offset */
897
898 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
899 HOWTO (R_SH_GOTPC_HI16, /* type */
900 48, /* rightshift */
901 2, /* size (0 = byte, 1 = short, 2 = long) */
902 64, /* bitsize */
903 TRUE, /* pc_relative */
904 10, /* bitpos */
905 complain_overflow_dont, /* complain_on_overflow */
906 bfd_elf_generic_reloc, /* special_function */
907 "R_SH_GOTPC_HI16", /* name */
908 FALSE, /* partial_inplace */
909 0, /* src_mask */
910 0x3fffc00, /* dst_mask */
911 TRUE), /* pcrel_offset */
912
913 /* Used in LD.L, FLD.S et al. */
914 HOWTO (R_SH_GOT10BY4, /* type */
915 2, /* rightshift */
916 2, /* size (0 = byte, 1 = short, 2 = long) */
917 12, /* bitsize */
918 FALSE, /* pc_relative */
919 10, /* bitpos */
920 complain_overflow_signed, /* complain_on_overflow */
921 bfd_elf_generic_reloc, /* special_function */
922 "R_SH_GOT10BY4", /* name */
923 FALSE, /* partial_inplace */
924 0, /* src_mask */
925 0xffc00, /* dst_mask */
926 FALSE), /* pcrel_offset */
927
928 /* Used in LD.L, FLD.S et al. */
929 HOWTO (R_SH_GOTPLT10BY4, /* type */
930 2, /* rightshift */
931 2, /* size (0 = byte, 1 = short, 2 = long) */
932 12, /* bitsize */
933 FALSE, /* pc_relative */
934 10, /* bitpos */
935 complain_overflow_signed, /* complain_on_overflow */
936 bfd_elf_generic_reloc, /* special_function */
937 "R_SH_GOTPLT10BY4", /* name */
938 FALSE, /* partial_inplace */
939 0, /* src_mask */
940 0xffc00, /* dst_mask */
941 FALSE), /* pcrel_offset */
942
943 /* Used in FLD.D, FST.P et al. */
944 HOWTO (R_SH_GOT10BY8, /* type */
945 3, /* rightshift */
946 2, /* size (0 = byte, 1 = short, 2 = long) */
947 13, /* bitsize */
948 FALSE, /* pc_relative */
949 10, /* bitpos */
950 complain_overflow_signed, /* complain_on_overflow */
951 bfd_elf_generic_reloc, /* special_function */
952 "R_SH_GOT10BY8", /* name */
953 FALSE, /* partial_inplace */
954 0, /* src_mask */
955 0xffc00, /* dst_mask */
956 FALSE), /* pcrel_offset */
957
958 /* Used in FLD.D, FST.P et al. */
959 HOWTO (R_SH_GOTPLT10BY8, /* type */
960 3, /* rightshift */
961 2, /* size (0 = byte, 1 = short, 2 = long) */
962 13, /* bitsize */
963 FALSE, /* pc_relative */
964 10, /* bitpos */
965 complain_overflow_signed, /* complain_on_overflow */
966 bfd_elf_generic_reloc, /* special_function */
967 "R_SH_GOTPLT10BY8", /* name */
968 FALSE, /* partial_inplace */
969 0, /* src_mask */
970 0xffc00, /* dst_mask */
971 FALSE), /* pcrel_offset */
972
973 HOWTO (R_SH_COPY64, /* type */
974 0, /* rightshift */
975 4, /* size (0 = byte, 1 = short, 2 = long) */
976 64, /* bitsize */
977 FALSE, /* pc_relative */
978 0, /* bitpos */
979 complain_overflow_dont, /* complain_on_overflow */
980 bfd_elf_generic_reloc, /* special_function */
981 "R_SH_COPY64", /* name */
982 FALSE, /* partial_inplace */
983 0, /* src_mask */
984 ((bfd_vma) 0) - 1, /* dst_mask */
985 FALSE), /* pcrel_offset */
986
987 HOWTO (R_SH_GLOB_DAT64, /* type */
988 0, /* rightshift */
989 4, /* size (0 = byte, 1 = short, 2 = long) */
990 64, /* bitsize */
991 FALSE, /* pc_relative */
992 0, /* bitpos */
993 complain_overflow_dont, /* complain_on_overflow */
994 bfd_elf_generic_reloc, /* special_function */
995 "R_SH_GLOB_DAT64", /* name */
996 FALSE, /* partial_inplace */
997 0, /* src_mask */
998 ((bfd_vma) 0) - 1, /* dst_mask */
999 FALSE), /* pcrel_offset */
1000
1001 HOWTO (R_SH_JMP_SLOT64, /* type */
1002 0, /* rightshift */
1003 4, /* size (0 = byte, 1 = short, 2 = long) */
1004 64, /* bitsize */
1005 FALSE, /* pc_relative */
1006 0, /* bitpos */
1007 complain_overflow_dont, /* complain_on_overflow */
1008 bfd_elf_generic_reloc, /* special_function */
1009 "R_SH_JMP_SLOT64", /* name */
1010 FALSE, /* partial_inplace */
1011 0, /* src_mask */
1012 ((bfd_vma) 0) - 1, /* dst_mask */
1013 FALSE), /* pcrel_offset */
1014
1015 HOWTO (R_SH_RELATIVE64, /* type */
1016 0, /* rightshift */
1017 4, /* size (0 = byte, 1 = short, 2 = long) */
1018 64, /* bitsize */
1019 FALSE, /* pc_relative */
1020 0, /* bitpos */
1021 complain_overflow_dont, /* complain_on_overflow */
1022 bfd_elf_generic_reloc, /* special_function */
1023 "R_SH_RELATIVE64", /* name */
1024 FALSE, /* partial_inplace */
1025 0, /* src_mask */
1026 ((bfd_vma) 0) - 1, /* dst_mask */
1027 FALSE), /* pcrel_offset */
1028
1029 EMPTY_HOWTO (197),
1030 EMPTY_HOWTO (198),
1031 EMPTY_HOWTO (199),
1032 EMPTY_HOWTO (200),
1033 EMPTY_HOWTO (201),
1034 EMPTY_HOWTO (202),
1035 EMPTY_HOWTO (203),
1036 EMPTY_HOWTO (204),
1037 EMPTY_HOWTO (205),
1038 EMPTY_HOWTO (206),
1039 EMPTY_HOWTO (207),
1040 EMPTY_HOWTO (208),
1041 EMPTY_HOWTO (209),
1042 EMPTY_HOWTO (210),
1043 EMPTY_HOWTO (211),
1044 EMPTY_HOWTO (212),
1045 EMPTY_HOWTO (213),
1046 EMPTY_HOWTO (214),
1047 EMPTY_HOWTO (215),
1048 EMPTY_HOWTO (216),
1049 EMPTY_HOWTO (217),
1050 EMPTY_HOWTO (218),
1051 EMPTY_HOWTO (219),
1052 EMPTY_HOWTO (220),
1053 EMPTY_HOWTO (221),
1054 EMPTY_HOWTO (222),
1055 EMPTY_HOWTO (223),
1056 EMPTY_HOWTO (224),
1057 EMPTY_HOWTO (225),
1058 EMPTY_HOWTO (226),
1059 EMPTY_HOWTO (227),
1060 EMPTY_HOWTO (228),
1061 EMPTY_HOWTO (229),
1062 EMPTY_HOWTO (230),
1063 EMPTY_HOWTO (231),
1064 EMPTY_HOWTO (232),
1065 EMPTY_HOWTO (233),
1066 EMPTY_HOWTO (234),
1067 EMPTY_HOWTO (235),
1068 EMPTY_HOWTO (236),
1069 EMPTY_HOWTO (237),
1070 EMPTY_HOWTO (238),
1071 EMPTY_HOWTO (239),
1072 EMPTY_HOWTO (240),
1073 EMPTY_HOWTO (241),
1074
1075 /* Relocations for SHmedia code. None of these are partial_inplace or
1076 use the field being relocated. */
1077
1078 /* The assembler will generate this reloc before a block of SHmedia
1079 instructions. A section should be processed as assuming it contains
1080 data, unless this reloc is seen. Note that a block of SHcompact
1081 instructions are instead preceded by R_SH_CODE.
1082 This is currently not implemented, but should be used for SHmedia
1083 linker relaxation. */
1084 HOWTO (R_SH_SHMEDIA_CODE, /* type */
1085 0, /* rightshift */
1086 1, /* size (0 = byte, 1 = short, 2 = long) */
1087 0, /* bitsize */
1088 FALSE, /* pc_relative */
1089 0, /* bitpos */
1090 complain_overflow_unsigned, /* complain_on_overflow */
1091 sh_elf64_ignore_reloc, /* special_function */
1092 "R_SH_SHMEDIA_CODE", /* name */
1093 FALSE, /* partial_inplace */
1094 0, /* src_mask */
1095 0, /* dst_mask */
1096 FALSE), /* pcrel_offset */
1097
1098 /* The assembler will generate this reloc at a PTA or PTB instruction,
1099 and the linker checks the right type of target, or changes a PTA to a
1100 PTB, if the original insn was PT. */
1101 HOWTO (R_SH_PT_16, /* type */
1102 2, /* rightshift */
1103 2, /* size (0 = byte, 1 = short, 2 = long) */
1104 18, /* bitsize */
1105 TRUE, /* pc_relative */
1106 10, /* bitpos */
1107 complain_overflow_signed, /* complain_on_overflow */
1108 bfd_elf_generic_reloc, /* special_function */
1109 "R_SH_PT_16", /* name */
1110 FALSE, /* partial_inplace */
1111 0, /* src_mask */
1112 0x3fffc00, /* dst_mask */
1113 TRUE), /* pcrel_offset */
1114
1115 /* Used in unexpanded MOVI. */
1116 HOWTO (R_SH_IMMS16, /* type */
1117 0, /* rightshift */
1118 2, /* size (0 = byte, 1 = short, 2 = long) */
1119 16, /* bitsize */
1120 FALSE, /* pc_relative */
1121 10, /* bitpos */
1122 complain_overflow_signed, /* complain_on_overflow */
1123 bfd_elf_generic_reloc, /* special_function */
1124 "R_SH_IMMS16", /* name */
1125 FALSE, /* partial_inplace */
1126 0, /* src_mask */
1127 0x3fffc00, /* dst_mask */
1128 FALSE), /* pcrel_offset */
1129
1130 /* Used in SHORI. */
1131 HOWTO (R_SH_IMMU16, /* type */
1132 0, /* rightshift */
1133 2, /* size (0 = byte, 1 = short, 2 = long) */
1134 16, /* bitsize */
1135 FALSE, /* pc_relative */
1136 10, /* bitpos */
1137 complain_overflow_unsigned, /* complain_on_overflow */
1138 bfd_elf_generic_reloc, /* special_function */
1139 "R_SH_IMMU16", /* name */
1140 FALSE, /* partial_inplace */
1141 0, /* src_mask */
1142 0x3fffc00, /* dst_mask */
1143 FALSE), /* pcrel_offset */
1144
1145 /* Used in MOVI and SHORI (x & 65536). */
1146 HOWTO (R_SH_IMM_LOW16, /* type */
1147 0, /* rightshift */
1148 2, /* size (0 = byte, 1 = short, 2 = long) */
1149 64, /* bitsize */
1150 FALSE, /* pc_relative */
1151 10, /* bitpos */
1152 complain_overflow_dont, /* complain_on_overflow */
1153 bfd_elf_generic_reloc, /* special_function */
1154 "R_SH_IMM_LOW16", /* name */
1155 FALSE, /* partial_inplace */
1156 0, /* src_mask */
1157 0x3fffc00, /* dst_mask */
1158 FALSE), /* pcrel_offset */
1159
1160 /* Used in MOVI and SHORI ((x - $) & 65536). */
1161 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */
1162 0, /* rightshift */
1163 2, /* size (0 = byte, 1 = short, 2 = long) */
1164 64, /* bitsize */
1165 TRUE, /* pc_relative */
1166 10, /* bitpos */
1167 complain_overflow_dont, /* complain_on_overflow */
1168 bfd_elf_generic_reloc, /* special_function */
1169 "R_SH_IMM_LOW16_PCREL", /* name */
1170 FALSE, /* partial_inplace */
1171 0, /* src_mask */
1172 0x3fffc00, /* dst_mask */
1173 TRUE), /* pcrel_offset */
1174
1175 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1176 HOWTO (R_SH_IMM_MEDLOW16, /* type */
1177 16, /* rightshift */
1178 2, /* size (0 = byte, 1 = short, 2 = long) */
1179 64, /* bitsize */
1180 FALSE, /* pc_relative */
1181 10, /* bitpos */
1182 complain_overflow_dont, /* complain_on_overflow */
1183 bfd_elf_generic_reloc, /* special_function */
1184 "R_SH_IMM_MEDLOW16", /* name */
1185 FALSE, /* partial_inplace */
1186 0, /* src_mask */
1187 0x3fffc00, /* dst_mask */
1188 FALSE), /* pcrel_offset */
1189
1190 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
1191 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
1192 16, /* rightshift */
1193 2, /* size (0 = byte, 1 = short, 2 = long) */
1194 64, /* bitsize */
1195 TRUE, /* pc_relative */
1196 10, /* bitpos */
1197 complain_overflow_dont, /* complain_on_overflow */
1198 bfd_elf_generic_reloc, /* special_function */
1199 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1200 FALSE, /* partial_inplace */
1201 0, /* src_mask */
1202 0x3fffc00, /* dst_mask */
1203 TRUE), /* pcrel_offset */
1204
1205 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1206 HOWTO (R_SH_IMM_MEDHI16, /* type */
1207 32, /* rightshift */
1208 2, /* size (0 = byte, 1 = short, 2 = long) */
1209 64, /* bitsize */
1210 FALSE, /* pc_relative */
1211 10, /* bitpos */
1212 complain_overflow_dont, /* complain_on_overflow */
1213 bfd_elf_generic_reloc, /* special_function */
1214 "R_SH_IMM_MEDHI16", /* name */
1215 FALSE, /* partial_inplace */
1216 0, /* src_mask */
1217 0x3fffc00, /* dst_mask */
1218 FALSE), /* pcrel_offset */
1219
1220 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
1221 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
1222 32, /* rightshift */
1223 2, /* size (0 = byte, 1 = short, 2 = long) */
1224 64, /* bitsize */
1225 TRUE, /* pc_relative */
1226 10, /* bitpos */
1227 complain_overflow_dont, /* complain_on_overflow */
1228 bfd_elf_generic_reloc, /* special_function */
1229 "R_SH_IMM_MEDHI16_PCREL", /* name */
1230 FALSE, /* partial_inplace */
1231 0, /* src_mask */
1232 0x3fffc00, /* dst_mask */
1233 TRUE), /* pcrel_offset */
1234
1235 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1236 HOWTO (R_SH_IMM_HI16, /* type */
1237 48, /* rightshift */
1238 2, /* size (0 = byte, 1 = short, 2 = long) */
1239 64, /* bitsize */
1240 FALSE, /* pc_relative */
1241 10, /* bitpos */
1242 complain_overflow_dont, /* complain_on_overflow */
1243 bfd_elf_generic_reloc, /* special_function */
1244 "R_SH_IMM_HI16", /* name */
1245 FALSE, /* partial_inplace */
1246 0, /* src_mask */
1247 0x3fffc00, /* dst_mask */
1248 FALSE), /* pcrel_offset */
1249
1250 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
1251 HOWTO (R_SH_IMM_HI16_PCREL, /* type */
1252 48, /* rightshift */
1253 2, /* size (0 = byte, 1 = short, 2 = long) */
1254 64, /* bitsize */
1255 TRUE, /* pc_relative */
1256 10, /* bitpos */
1257 complain_overflow_dont, /* complain_on_overflow */
1258 bfd_elf_generic_reloc, /* special_function */
1259 "R_SH_IMM_HI16_PCREL", /* name */
1260 FALSE, /* partial_inplace */
1261 0, /* src_mask */
1262 0x3fffc00, /* dst_mask */
1263 TRUE), /* pcrel_offset */
1264
1265 /* For the .uaquad pseudo. */
1266 HOWTO (R_SH_64, /* type */
1267 0, /* rightshift */
1268 4, /* size (0 = byte, 1 = short, 2 = long) */
1269 64, /* bitsize */
1270 FALSE, /* pc_relative */
1271 0, /* bitpos */
1272 complain_overflow_dont, /* complain_on_overflow */
1273 bfd_elf_generic_reloc, /* special_function */
1274 "R_SH_64", /* name */
1275 FALSE, /* partial_inplace */
1276 0, /* src_mask */
1277 ((bfd_vma) 0) - 1, /* dst_mask */
1278 FALSE), /* pcrel_offset */
1279
1280 /* For the .uaquad pseudo, (x - $). */
1281 HOWTO (R_SH_64_PCREL, /* type */
1282 48, /* rightshift */
1283 2, /* size (0 = byte, 1 = short, 2 = long) */
1284 64, /* bitsize */
1285 TRUE, /* pc_relative */
1286 10, /* bitpos */
1287 complain_overflow_dont, /* complain_on_overflow */
1288 bfd_elf_generic_reloc, /* special_function */
1289 "R_SH_64_PCREL", /* name */
1290 FALSE, /* partial_inplace */
1291 0, /* src_mask */
1292 ((bfd_vma) 0) - 1, /* dst_mask */
1293 TRUE), /* pcrel_offset */
1294
1295 };
1296
1297 /* This function is used for relocs which are only used for relaxing,
1298 which the linker should otherwise ignore. */
1299
1300 static bfd_reloc_status_type
1301 sh_elf64_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
1302 asymbol *symbol ATTRIBUTE_UNUSED,
1303 void *data ATTRIBUTE_UNUSED, asection *input_section,
1304 bfd *output_bfd,
1305 char **error_message ATTRIBUTE_UNUSED)
1306 {
1307 if (output_bfd != NULL)
1308 reloc_entry->address += input_section->output_offset;
1309 return bfd_reloc_ok;
1310 }
1311
1312 /* This function is used for normal relocs. This used to be like the COFF
1313 function, and is almost certainly incorrect for other ELF targets.
1314
1315 See sh_elf_reloc in elf32-sh.c for the original. */
1316
1317 static bfd_reloc_status_type
1318 sh_elf64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
1319 void *data, asection *input_section, bfd *output_bfd,
1320 char **error_message ATTRIBUTE_UNUSED)
1321 {
1322 unsigned long insn;
1323 bfd_vma sym_value;
1324 enum elf_sh_reloc_type r_type;
1325 bfd_vma addr = reloc_entry->address;
1326 bfd_byte *hit_data = addr + (bfd_byte *) data;
1327
1328 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
1329
1330 if (output_bfd != NULL)
1331 {
1332 /* Partial linking--do nothing. */
1333 reloc_entry->address += input_section->output_offset;
1334 return bfd_reloc_ok;
1335 }
1336
1337 if (symbol_in != NULL
1338 && bfd_is_und_section (symbol_in->section))
1339 return bfd_reloc_undefined;
1340
1341 if (bfd_is_com_section (symbol_in->section))
1342 sym_value = 0;
1343 else
1344 sym_value = (symbol_in->value +
1345 symbol_in->section->output_section->vma +
1346 symbol_in->section->output_offset);
1347
1348 switch (r_type)
1349 {
1350 case R_SH_DIR32:
1351 insn = bfd_get_32 (abfd, hit_data);
1352 insn += sym_value + reloc_entry->addend;
1353 bfd_put_32 (abfd, insn, hit_data);
1354 break;
1355
1356 default:
1357 abort ();
1358 break;
1359 }
1360
1361 return bfd_reloc_ok;
1362 }
1363
1364 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
1365
1366 struct elf_reloc_map
1367 {
1368 bfd_reloc_code_real_type bfd_reloc_val;
1369 unsigned char elf_reloc_val;
1370 };
1371
1372 /* An array mapping BFD reloc codes to SH ELF relocs. */
1373
1374 static const struct elf_reloc_map sh64_reloc_map[] =
1375 {
1376 { BFD_RELOC_NONE, R_SH_NONE },
1377 { BFD_RELOC_32, R_SH_DIR32 },
1378 { BFD_RELOC_CTOR, R_SH_DIR32 },
1379 { BFD_RELOC_32_PCREL, R_SH_REL32 },
1380 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
1381 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
1382 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
1383 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
1384 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
1385 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
1386 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
1387 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
1388 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
1389 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
1390 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
1391 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
1392 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
1393 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
1394 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
1395 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
1396 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
1397 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
1398 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
1399 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
1400 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
1401 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
1402 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
1403 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
1404 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
1405 { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
1406 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
1407 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
1408 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
1409 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
1410 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
1411 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
1412 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
1413 { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
1414 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
1415 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
1416 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
1417 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
1418 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
1419 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
1420 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
1421 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
1422 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
1423 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
1424 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
1425 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
1426 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
1427 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
1428 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
1429 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
1430 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
1431 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
1432 { BFD_RELOC_64, R_SH_64 },
1433 { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
1434 };
1435
1436 /* Given a BFD reloc code, return the howto structure for the
1437 corresponding SH ELf reloc. */
1438
1439 static reloc_howto_type *
1440 sh_elf64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1441 bfd_reloc_code_real_type code)
1442 {
1443 unsigned int i;
1444
1445 for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++)
1446 {
1447 if (sh64_reloc_map[i].bfd_reloc_val == code)
1448 return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val];
1449 }
1450
1451 return NULL;
1452 }
1453
1454 /* Given an ELF reloc, fill in the howto field of a relent.
1455
1456 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1457
1458 static void
1459 sh_elf64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
1460 Elf_Internal_Rela *dst)
1461 {
1462 unsigned int r;
1463
1464 r = ELF64_R_TYPE (dst->r_info);
1465
1466 BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL);
1467 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
1468 BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2);
1469 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32);
1470 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
1471
1472 cache_ptr->howto = &sh_elf64_howto_table[r];
1473 }
1474
1475 /* Relocate an SH ELF section.
1476
1477 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1478
1479 static bfd_boolean
1480 sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
1481 struct bfd_link_info *info, bfd *input_bfd,
1482 asection *input_section, bfd_byte *contents,
1483 Elf_Internal_Rela *relocs,
1484 Elf_Internal_Sym *local_syms,
1485 asection **local_sections)
1486 {
1487 Elf_Internal_Shdr *symtab_hdr;
1488 struct elf_link_hash_entry **sym_hashes;
1489 Elf_Internal_Rela *rel, *relend;
1490 bfd *dynobj;
1491 bfd_vma *local_got_offsets;
1492 asection *sgot;
1493 asection *sgotplt;
1494 asection *splt;
1495 asection *sreloc;
1496 bfd_vma disp, dropped;
1497
1498 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1499 sym_hashes = elf_sym_hashes (input_bfd);
1500 dynobj = elf_hash_table (info)->dynobj;
1501 local_got_offsets = elf_local_got_offsets (input_bfd);
1502
1503 sgot = NULL;
1504 sgotplt = NULL;
1505 splt = NULL;
1506 sreloc = NULL;
1507
1508 rel = relocs;
1509 relend = relocs + input_section->reloc_count;
1510 for (; rel < relend; rel++)
1511 {
1512 int r_type;
1513 reloc_howto_type *howto;
1514 unsigned long r_symndx;
1515 Elf_Internal_Sym *sym;
1516 asection *sec;
1517 struct elf_link_hash_entry *h;
1518 bfd_vma relocation;
1519 bfd_vma addend = (bfd_vma)0;
1520 bfd_reloc_status_type r;
1521 int seen_stt_datalabel = 0;
1522
1523 r_symndx = ELF64_R_SYM (rel->r_info);
1524
1525 r_type = ELF64_R_TYPE (rel->r_info);
1526
1527 if (r_type == (int) R_SH_NONE)
1528 continue;
1529
1530 if (r_type < 0
1531 || r_type > R_SH_64_PCREL
1532 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
1533 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1534 || (r_type >= (int) R_SH_DIR8WPN
1535 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1536 || (r_type >= (int) R_SH_GNU_VTINHERIT
1537 && r_type <= (int) R_SH_PSHL)
1538 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
1539 && r_type <= R_SH_GOTPLT32)
1540 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
1541 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4))
1542 {
1543 bfd_set_error (bfd_error_bad_value);
1544 return FALSE;
1545 }
1546
1547 howto = sh_elf64_howto_table + r_type;
1548
1549 /* This is a final link. */
1550 h = NULL;
1551 sym = NULL;
1552 sec = NULL;
1553 if (r_symndx < symtab_hdr->sh_info)
1554 {
1555 sym = local_syms + r_symndx;
1556 sec = local_sections[r_symndx];
1557 relocation = ((sec->output_section->vma
1558 + sec->output_offset
1559 + sym->st_value)
1560 | ((sym->st_other & STO_SH5_ISA32) != 0));
1561
1562 /* A local symbol never has STO_SH5_ISA32, so we don't need
1563 datalabel processing here. Make sure this does not change
1564 without notice. */
1565 if ((sym->st_other & STO_SH5_ISA32) != 0)
1566 ((*info->callbacks->reloc_dangerous)
1567 (info,
1568 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
1569 input_bfd, input_section, rel->r_offset));
1570
1571 if (info->relocatable)
1572 {
1573 /* This is a relocatable link. We don't have to change
1574 anything, unless the reloc is against a section symbol,
1575 in which case we have to adjust according to where the
1576 section symbol winds up in the output section. */
1577 sym = local_syms + r_symndx;
1578 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1579 goto final_link_relocate;
1580
1581 continue;
1582 }
1583 else if (! howto->partial_inplace)
1584 {
1585 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1586 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0);
1587 }
1588 else if ((sec->flags & SEC_MERGE)
1589 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1590 {
1591 asection *msec;
1592
1593 if (howto->rightshift || howto->src_mask != 0xffffffff)
1594 {
1595 (*_bfd_error_handler)
1596 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
1597 input_bfd, input_section,
1598 (long) rel->r_offset, howto->name);
1599 return FALSE;
1600 }
1601
1602 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1603 msec = sec;
1604 addend =
1605 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1606 - relocation;
1607 addend += msec->output_section->vma + msec->output_offset;
1608 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1609 addend = 0;
1610 }
1611 }
1612 else
1613 {
1614 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1615
1616 /* Section symbols are never (?) placed in the hash table, so
1617 we can just ignore hash relocations when creating a
1618 relocatable object file. */
1619 if (info->relocatable)
1620 continue;
1621
1622 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1623 while (h->root.type == bfd_link_hash_indirect
1624 || h->root.type == bfd_link_hash_warning)
1625 {
1626 /* If the reference passes a symbol marked with
1627 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1628 doesn't count. */
1629 seen_stt_datalabel |= h->type == STT_DATALABEL;
1630 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1631 }
1632
1633 if (h->root.type == bfd_link_hash_defined
1634 || h->root.type == bfd_link_hash_defweak)
1635 {
1636 sec = h->root.u.def.section;
1637 /* In these cases, we don't need the relocation value.
1638 We check specially because in some obscure cases
1639 sec->output_section will be NULL. */
1640 if (r_type == R_SH_GOTPC_LOW16
1641 || r_type == R_SH_GOTPC_MEDLOW16
1642 || r_type == R_SH_GOTPC_MEDHI16
1643 || r_type == R_SH_GOTPC_HI16
1644 || ((r_type == R_SH_PLT_LOW16
1645 || r_type == R_SH_PLT_MEDLOW16
1646 || r_type == R_SH_PLT_MEDHI16
1647 || r_type == R_SH_PLT_HI16)
1648 && h->plt.offset != (bfd_vma) -1)
1649 || ((r_type == R_SH_GOT_LOW16
1650 || r_type == R_SH_GOT_MEDLOW16
1651 || r_type == R_SH_GOT_MEDHI16
1652 || r_type == R_SH_GOT_HI16)
1653 && elf_hash_table (info)->dynamic_sections_created
1654 && (! info->shared
1655 || (! info->symbolic && h->dynindx != -1)
1656 || !h->def_regular))
1657 /* The cases above are those in which relocation is
1658 overwritten in the switch block below. The cases
1659 below are those in which we must defer relocation
1660 to run-time, because we can't resolve absolute
1661 addresses when creating a shared library. */
1662 || (info->shared
1663 && ((! info->symbolic && h->dynindx != -1)
1664 || !h->def_regular)
1665 && ((r_type == R_SH_64
1666 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1667 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1668 || r_type == R_SH_64_PCREL)
1669 && ((input_section->flags & SEC_ALLOC) != 0
1670 /* DWARF will emit R_SH_DIR32 relocations in its
1671 sections against symbols defined externally
1672 in shared libraries. We can't do anything
1673 with them here. */
1674 || (input_section->flags & SEC_DEBUGGING) != 0))
1675 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1676 sections because such sections are not SEC_ALLOC and
1677 thus ld.so will not process them. */
1678 || (sec->output_section == NULL
1679 && ((input_section->flags & SEC_DEBUGGING) != 0
1680 && h->def_dynamic)))
1681 relocation = 0;
1682 else if (sec->output_section == NULL)
1683 {
1684 (*_bfd_error_handler)
1685 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
1686 bfd_get_filename (input_bfd), h->root.root.string,
1687 bfd_get_section_name (input_bfd, input_section));
1688 relocation = 0;
1689 }
1690 else
1691 relocation = ((h->root.u.def.value
1692 + sec->output_section->vma
1693 + sec->output_offset)
1694 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1695 symbol value, unless we've seen
1696 STT_DATALABEL on the way to it. */
1697 | ((h->other & STO_SH5_ISA32) != 0
1698 && ! seen_stt_datalabel));
1699 }
1700 else if (h->root.type == bfd_link_hash_undefweak)
1701 relocation = 0;
1702 else if (info->unresolved_syms_in_objects == RM_IGNORE
1703 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1704 relocation = 0;
1705 else
1706 {
1707 if (! ((*info->callbacks->undefined_symbol)
1708 (info, h->root.root.string, input_bfd,
1709 input_section, rel->r_offset,
1710 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1711 || ELF_ST_VISIBILITY (h->other)))))
1712 return FALSE;
1713 relocation = 0;
1714 }
1715 }
1716
1717 disp = (relocation
1718 - input_section->output_section->vma
1719 - input_section->output_offset
1720 - rel->r_offset);
1721 dropped = 0;
1722 switch ((int)r_type)
1723 {
1724 case R_SH_PT_16: dropped = disp & 2; break;
1725 case R_SH_DIR10SW: dropped = disp & 1; break;
1726 case R_SH_DIR10SL: dropped = disp & 3; break;
1727 case R_SH_DIR10SQ: dropped = disp & 7; break;
1728 }
1729 if (dropped != 0)
1730 {
1731 (*_bfd_error_handler)
1732 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
1733 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation);
1734 bfd_set_error (bfd_error_bad_value);
1735 return FALSE;
1736 }
1737 switch ((int)r_type)
1738 {
1739 case R_SH_64:
1740 case R_SH_64_PCREL:
1741 if (info->shared
1742 && (input_section->flags & SEC_ALLOC) != 0
1743 && (r_type != R_SH_64_PCREL
1744 || (h != NULL
1745 && h->dynindx != -1
1746 && (! info->symbolic
1747 || !h->def_regular))))
1748 {
1749 Elf_Internal_Rela outrel;
1750 bfd_byte *loc;
1751 bfd_boolean skip, relocate;
1752
1753 /* When generating a shared object, these relocations
1754 are copied into the output file to be resolved at run
1755 time. */
1756
1757 if (sreloc == NULL)
1758 {
1759 const char *name;
1760
1761 name = (bfd_elf_string_from_elf_section
1762 (input_bfd,
1763 elf_elfheader (input_bfd)->e_shstrndx,
1764 elf_section_data (input_section)->rel_hdr.sh_name));
1765 if (name == NULL)
1766 return FALSE;
1767
1768 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1769 && strcmp (bfd_get_section_name (input_bfd,
1770 input_section),
1771 name + 5) == 0);
1772
1773 sreloc = bfd_get_section_by_name (dynobj, name);
1774 BFD_ASSERT (sreloc != NULL);
1775 }
1776
1777 skip = FALSE;
1778 relocate = FALSE;
1779
1780 outrel.r_offset
1781 = _bfd_elf_section_offset (output_bfd, info,
1782 input_section, rel->r_offset);
1783
1784 if (outrel.r_offset == (bfd_vma) -1)
1785 skip = TRUE;
1786 else if (outrel.r_offset == (bfd_vma) -2)
1787 skip = TRUE, relocate = TRUE;
1788
1789 outrel.r_offset += (input_section->output_section->vma
1790 + input_section->output_offset);
1791
1792 if (skip)
1793 memset (&outrel, 0, sizeof outrel);
1794 else if (r_type == R_SH_64_PCREL)
1795 {
1796 BFD_ASSERT (h != NULL && h->dynindx != -1);
1797 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1798 outrel.r_addend = rel->r_addend;
1799 }
1800 else
1801 {
1802 /* h->dynindx may be -1 if this symbol was marked to
1803 become local. */
1804 if (h == NULL
1805 || ((info->symbolic || h->dynindx == -1)
1806 && h->def_regular))
1807 {
1808 relocate = TRUE;
1809 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1810 outrel.r_addend = relocation + rel->r_addend;
1811 }
1812 else
1813 {
1814 BFD_ASSERT (h->dynindx != -1);
1815 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1816 outrel.r_addend = relocation + rel->r_addend;
1817 }
1818 }
1819
1820 loc = sreloc->contents;
1821 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1822 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1823
1824 /* If this reloc is against an external symbol, we do
1825 not want to fiddle with the addend. Otherwise, we
1826 need to include the symbol value so that it becomes
1827 an addend for the dynamic reloc. */
1828 if (! relocate)
1829 continue;
1830 }
1831 else if (r_type == R_SH_64)
1832 addend = rel->r_addend;
1833 goto final_link_relocate;
1834
1835 case R_SH_GOTPLT_LOW16:
1836 case R_SH_GOTPLT_MEDLOW16:
1837 case R_SH_GOTPLT_MEDHI16:
1838 case R_SH_GOTPLT_HI16:
1839 case R_SH_GOTPLT10BY4:
1840 case R_SH_GOTPLT10BY8:
1841 /* Relocation is to the entry for this symbol in the
1842 procedure linkage table. */
1843
1844 if (h == NULL
1845 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1846 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1847 || ! info->shared
1848 || info->symbolic
1849 || h->dynindx == -1
1850 || h->plt.offset == (bfd_vma) -1
1851 || h->got.offset != (bfd_vma) -1)
1852 goto force_got;
1853
1854 /* Relocation is to the entry for this symbol in the global
1855 offset table extension for the procedure linkage table. */
1856 if (sgotplt == NULL)
1857 {
1858 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1859 BFD_ASSERT (sgotplt != NULL);
1860 }
1861
1862 relocation = (sgotplt->output_offset
1863 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1864 - 1 + 3) * 8));
1865
1866 relocation -= GOT_BIAS;
1867
1868 goto final_link_relocate;
1869
1870 force_got:
1871 case R_SH_GOT_LOW16:
1872 case R_SH_GOT_MEDLOW16:
1873 case R_SH_GOT_MEDHI16:
1874 case R_SH_GOT_HI16:
1875 case R_SH_GOT10BY4:
1876 case R_SH_GOT10BY8:
1877 /* Relocation is to the entry for this symbol in the global
1878 offset table. */
1879 if (sgot == NULL)
1880 {
1881 sgot = bfd_get_section_by_name (dynobj, ".got");
1882 BFD_ASSERT (sgot != NULL);
1883 }
1884
1885 if (h != NULL)
1886 {
1887 bfd_vma off;
1888
1889 off = h->got.offset;
1890 if (seen_stt_datalabel)
1891 {
1892 struct elf_sh64_link_hash_entry *hsh;
1893
1894 hsh = (struct elf_sh64_link_hash_entry *)h;
1895 off = hsh->datalabel_got_offset;
1896 }
1897 BFD_ASSERT (off != (bfd_vma) -1);
1898
1899 if (! elf_hash_table (info)->dynamic_sections_created
1900 || (info->shared
1901 && (info->symbolic || h->dynindx == -1
1902 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1903 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1904 && h->def_regular))
1905 {
1906 /* This is actually a static link, or it is a
1907 -Bsymbolic link and the symbol is defined
1908 locally, or the symbol was forced to be local
1909 because of a version file. We must initialize
1910 this entry in the global offset table. Since the
1911 offset must always be a multiple of 4, we use the
1912 least significant bit to record whether we have
1913 initialized it already.
1914
1915 When doing a dynamic link, we create a .rela.got
1916 relocation entry to initialize the value. This
1917 is done in the finish_dynamic_symbol routine. */
1918 if ((off & 1) != 0)
1919 off &= ~1;
1920 else
1921 {
1922 bfd_put_64 (output_bfd, relocation,
1923 sgot->contents + off);
1924 if (seen_stt_datalabel)
1925 {
1926 struct elf_sh64_link_hash_entry *hsh;
1927
1928 hsh = (struct elf_sh64_link_hash_entry *)h;
1929 hsh->datalabel_got_offset |= 1;
1930 }
1931 else
1932 h->got.offset |= 1;
1933 }
1934 }
1935
1936 relocation = sgot->output_offset + off;
1937 }
1938 else
1939 {
1940 bfd_vma off;
1941
1942 if (rel->r_addend)
1943 {
1944 BFD_ASSERT (local_got_offsets != NULL
1945 && (local_got_offsets[symtab_hdr->sh_info
1946 + r_symndx]
1947 != (bfd_vma) -1));
1948
1949 off = local_got_offsets[symtab_hdr->sh_info
1950 + r_symndx];
1951 }
1952 else
1953 {
1954 BFD_ASSERT (local_got_offsets != NULL
1955 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1956
1957 off = local_got_offsets[r_symndx];
1958 }
1959
1960 /* The offset must always be a multiple of 8. We use
1961 the least significant bit to record whether we have
1962 already generated the necessary reloc. */
1963 if ((off & 1) != 0)
1964 off &= ~1;
1965 else
1966 {
1967 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1968
1969 if (info->shared)
1970 {
1971 asection *s;
1972 Elf_Internal_Rela outrel;
1973 bfd_byte *loc;
1974
1975 s = bfd_get_section_by_name (dynobj, ".rela.got");
1976 BFD_ASSERT (s != NULL);
1977
1978 outrel.r_offset = (sgot->output_section->vma
1979 + sgot->output_offset
1980 + off);
1981 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1982 outrel.r_addend = relocation;
1983 loc = s->contents;
1984 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1985 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1986 }
1987
1988 if (rel->r_addend)
1989 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1990 else
1991 local_got_offsets[r_symndx] |= 1;
1992 }
1993
1994 relocation = sgot->output_offset + off;
1995 }
1996
1997 relocation -= GOT_BIAS;
1998
1999 goto final_link_relocate;
2000
2001 case R_SH_GOTOFF_LOW16:
2002 case R_SH_GOTOFF_MEDLOW16:
2003 case R_SH_GOTOFF_MEDHI16:
2004 case R_SH_GOTOFF_HI16:
2005 /* Relocation is relative to the start of the global offset
2006 table. */
2007
2008 if (sgot == NULL)
2009 {
2010 sgot = bfd_get_section_by_name (dynobj, ".got");
2011 BFD_ASSERT (sgot != NULL);
2012 }
2013
2014 /* Note that sgot->output_offset is not involved in this
2015 calculation. We always want the start of .got. If we
2016 defined _GLOBAL_OFFSET_TABLE in a different way, as is
2017 permitted by the ABI, we might have to change this
2018 calculation. */
2019 relocation -= sgot->output_section->vma;
2020
2021 relocation -= GOT_BIAS;
2022
2023 addend = rel->r_addend;
2024
2025 goto final_link_relocate;
2026
2027 case R_SH_GOTPC_LOW16:
2028 case R_SH_GOTPC_MEDLOW16:
2029 case R_SH_GOTPC_MEDHI16:
2030 case R_SH_GOTPC_HI16:
2031 /* Use global offset table as symbol value. */
2032
2033 if (sgot == NULL)
2034 {
2035 sgot = bfd_get_section_by_name (dynobj, ".got");
2036 BFD_ASSERT (sgot != NULL);
2037 }
2038
2039 relocation = sgot->output_section->vma;
2040
2041 relocation += GOT_BIAS;
2042
2043 addend = rel->r_addend;
2044
2045 goto final_link_relocate;
2046
2047 case R_SH_PLT_LOW16:
2048 case R_SH_PLT_MEDLOW16:
2049 case R_SH_PLT_MEDHI16:
2050 case R_SH_PLT_HI16:
2051 /* Relocation is to the entry for this symbol in the
2052 procedure linkage table. */
2053
2054 /* Resolve a PLT reloc against a local symbol directly,
2055 without using the procedure linkage table. */
2056 if (h == NULL)
2057 goto final_link_relocate;
2058
2059 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2060 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2061 goto final_link_relocate;
2062
2063 if (h->plt.offset == (bfd_vma) -1)
2064 {
2065 /* We didn't make a PLT entry for this symbol. This
2066 happens when statically linking PIC code, or when
2067 using -Bsymbolic. */
2068 goto final_link_relocate;
2069 }
2070
2071 if (splt == NULL)
2072 {
2073 splt = bfd_get_section_by_name (dynobj, ".plt");
2074 BFD_ASSERT (splt != NULL);
2075 }
2076
2077 relocation = (splt->output_section->vma
2078 + splt->output_offset
2079 + h->plt.offset);
2080 relocation++;
2081
2082 addend = rel->r_addend;
2083
2084 goto final_link_relocate;
2085
2086 case R_SH_DIR32:
2087 case R_SH_SHMEDIA_CODE:
2088 case R_SH_PT_16:
2089 case R_SH_DIR5U:
2090 case R_SH_DIR6S:
2091 case R_SH_DIR6U:
2092 case R_SH_DIR10S:
2093 case R_SH_DIR10SW:
2094 case R_SH_DIR10SL:
2095 case R_SH_DIR10SQ:
2096 case R_SH_IMMS16:
2097 case R_SH_IMMU16:
2098 case R_SH_IMM_LOW16:
2099 case R_SH_IMM_LOW16_PCREL:
2100 case R_SH_IMM_MEDLOW16:
2101 case R_SH_IMM_MEDLOW16_PCREL:
2102 case R_SH_IMM_MEDHI16:
2103 case R_SH_IMM_MEDHI16_PCREL:
2104 case R_SH_IMM_HI16:
2105 case R_SH_IMM_HI16_PCREL:
2106 addend = rel->r_addend;
2107 /* Fall through. */
2108 case R_SH_REL32:
2109 final_link_relocate:
2110 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2111 contents, rel->r_offset,
2112 relocation, addend);
2113 break;
2114
2115 default:
2116 bfd_set_error (bfd_error_bad_value);
2117 return FALSE;
2118
2119 }
2120
2121 if (r != bfd_reloc_ok)
2122 {
2123 switch (r)
2124 {
2125 default:
2126 case bfd_reloc_outofrange:
2127 abort ();
2128 case bfd_reloc_overflow:
2129 {
2130 const char *name;
2131
2132 if (h != NULL)
2133 name = NULL;
2134 else
2135 {
2136 name = (bfd_elf_string_from_elf_section
2137 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2138 if (name == NULL)
2139 return FALSE;
2140 if (*name == '\0')
2141 name = bfd_section_name (input_bfd, sec);
2142 }
2143 if (! ((*info->callbacks->reloc_overflow)
2144 (info, (h ? &h->root : NULL), name, howto->name,
2145 (bfd_vma) 0, input_bfd, input_section,
2146 rel->r_offset)))
2147 return FALSE;
2148 }
2149 break;
2150 }
2151 }
2152 }
2153
2154 return TRUE;
2155 }
2156
2157 /* This is a version of bfd_generic_get_relocated_section_contents
2158 that uses sh_elf64_relocate_section.
2159
2160 See sh_elf_relocate_section in elf32-sh.c for the original. */
2161
2162 static bfd_byte *
2163 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2164 struct bfd_link_info *link_info,
2165 struct bfd_link_order *link_order,
2166 bfd_byte *data,
2167 bfd_boolean relocatable,
2168 asymbol **symbols)
2169 {
2170 Elf_Internal_Shdr *symtab_hdr;
2171 asection *input_section = link_order->u.indirect.section;
2172 bfd *input_bfd = input_section->owner;
2173 asection **sections = NULL;
2174 Elf_Internal_Rela *internal_relocs = NULL;
2175 Elf_Internal_Sym *isymbuf = NULL;
2176
2177 /* We only need to handle the case of relaxing, or of having a
2178 particular set of section contents, specially. */
2179 if (relocatable
2180 || elf_section_data (input_section)->this_hdr.contents == NULL)
2181 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2182 link_order, data,
2183 relocatable,
2184 symbols);
2185
2186 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2187
2188 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2189 input_section->size);
2190
2191 if ((input_section->flags & SEC_RELOC) != 0
2192 && input_section->reloc_count > 0)
2193 {
2194 Elf_Internal_Sym *isymp;
2195 Elf_Internal_Sym *isymend;
2196 asection **secpp;
2197
2198 /* Read this BFD's local symbols. */
2199 if (symtab_hdr->sh_info != 0)
2200 {
2201 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2202 if (isymbuf == NULL)
2203 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2204 symtab_hdr->sh_info, 0,
2205 NULL, NULL, NULL);
2206 if (isymbuf == NULL)
2207 goto error_return;
2208 }
2209
2210 internal_relocs = (_bfd_elf_link_read_relocs
2211 (input_bfd, input_section, NULL,
2212 (Elf_Internal_Rela *) NULL, FALSE));
2213 if (internal_relocs == NULL)
2214 goto error_return;
2215
2216 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2217 * sizeof (asection *));
2218 if (sections == NULL && symtab_hdr->sh_info > 0)
2219 goto error_return;
2220
2221 secpp = sections;
2222 isymend = isymbuf + symtab_hdr->sh_info;
2223 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2224 {
2225 asection *isec;
2226
2227 if (isymp->st_shndx == SHN_UNDEF)
2228 isec = bfd_und_section_ptr;
2229 else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
2230 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2231 else if (isymp->st_shndx == SHN_ABS)
2232 isec = bfd_abs_section_ptr;
2233 else if (isymp->st_shndx == SHN_COMMON)
2234 isec = bfd_com_section_ptr;
2235 else
2236 {
2237 /* Who knows? */
2238 isec = NULL;
2239 }
2240
2241 *secpp = isec;
2242 }
2243
2244 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2245 input_section, data, internal_relocs,
2246 isymbuf, sections))
2247 goto error_return;
2248
2249 if (sections != NULL)
2250 free (sections);
2251 if (internal_relocs != elf_section_data (input_section)->relocs)
2252 free (internal_relocs);
2253 if (isymbuf != NULL
2254 && (unsigned char *) isymbuf != symtab_hdr->contents)
2255 free (isymbuf);
2256 }
2257
2258 return data;
2259
2260 error_return:
2261 if (sections != NULL)
2262 free (sections);
2263 if (internal_relocs != NULL
2264 && internal_relocs != elf_section_data (input_section)->relocs)
2265 free (internal_relocs);
2266 if (isymbuf != NULL
2267 && (unsigned char *) isymbuf != symtab_hdr->contents)
2268 free (isymbuf);
2269 return NULL;
2270 }
2271
2272 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2273
2274 bfd_boolean
2275 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2276 Elf_Internal_Shdr *elf_section_hdr,
2277 asection *asect)
2278 {
2279 /* Code sections can only contain SH64 code, so mark them as such. */
2280 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2281 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2282
2283 return TRUE;
2284 }
2285
2286 static bfd_boolean
2287 sh_elf64_set_mach_from_flags (bfd *abfd)
2288 {
2289 flagword flags = elf_elfheader (abfd)->e_flags;
2290
2291 switch (flags & EF_SH_MACH_MASK)
2292 {
2293 case EF_SH5:
2294 /* Just one, but keep the switch construct to make additions easy. */
2295 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2296 break;
2297
2298 default:
2299 bfd_set_error (bfd_error_wrong_format);
2300 return FALSE;
2301 }
2302 return TRUE;
2303 }
2304
2305 /* Function to keep SH64 specific file flags.
2306
2307 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2308
2309 static bfd_boolean
2310 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2311 {
2312 BFD_ASSERT (! elf_flags_init (abfd)
2313 || elf_elfheader (abfd)->e_flags == flags);
2314
2315 elf_elfheader (abfd)->e_flags = flags;
2316 elf_flags_init (abfd) = TRUE;
2317 return sh_elf64_set_mach_from_flags (abfd);
2318 }
2319
2320 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2321 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2322
2323 static bfd_boolean
2324 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2325 {
2326 Elf_Internal_Shdr **o_shdrp;
2327 asection *isec;
2328 asection *osec;
2329
2330 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2331 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2332 return TRUE;
2333
2334 o_shdrp = elf_elfsections (obfd);
2335 for (osec = obfd->sections; osec; osec = osec->next)
2336 {
2337 int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx;
2338 for (isec = ibfd->sections; isec; isec = isec->next)
2339 {
2340 if (strcmp (osec->name, isec->name) == 0)
2341 {
2342 /* Note that we're not disallowing mixing data and code. */
2343 if ((elf_section_data (isec)->this_hdr.sh_flags
2344 & SHF_SH5_ISA32) != 0)
2345 o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32;
2346 break;
2347 }
2348 }
2349 }
2350
2351 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2352 }
2353
2354 static bfd_boolean
2355 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2356 {
2357 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2358 }
2359
2360 static bfd_boolean
2361 sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd)
2362 {
2363 flagword old_flags, new_flags;
2364
2365 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
2366 return FALSE;
2367
2368 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2369 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2370 return TRUE;
2371
2372 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2373 {
2374 const char *msg;
2375
2376 if (bfd_get_arch_size (ibfd) == 32
2377 && bfd_get_arch_size (obfd) == 64)
2378 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
2379 else if (bfd_get_arch_size (ibfd) == 64
2380 && bfd_get_arch_size (obfd) == 32)
2381 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
2382 else
2383 msg = _("%s: object size does not match that of target %s");
2384
2385 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
2386 bfd_get_filename (obfd));
2387 bfd_set_error (bfd_error_wrong_format);
2388 return FALSE;
2389 }
2390
2391 old_flags = elf_elfheader (obfd)->e_flags;
2392 new_flags = elf_elfheader (ibfd)->e_flags;
2393 if (! elf_flags_init (obfd))
2394 {
2395 /* This happens when ld starts out with a 'blank' output file. */
2396 elf_flags_init (obfd) = TRUE;
2397 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2398 }
2399 /* We don't allow linking in anything else than SH64 code, and since
2400 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2401 here as things change. */
2402 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2403 {
2404 (*_bfd_error_handler)
2405 ("%s: does not use the SH64 64-bit ABI as previous modules do",
2406 bfd_get_filename (ibfd));
2407 bfd_set_error (bfd_error_bad_value);
2408 return FALSE;
2409 }
2410
2411 sh_elf64_copy_private_data_internal (ibfd, obfd);
2412
2413 /* I can't think of anything sane other than old_flags being EF_SH5 and
2414 that we need to preserve that. */
2415 elf_elfheader (obfd)->e_flags = old_flags;
2416
2417 return sh_elf64_set_mach_from_flags (obfd);
2418 }
2419
2420 /* Return the section that should be marked against GC for a given
2421 relocation. */
2422
2423 static asection *
2424 sh_elf64_gc_mark_hook (asection *sec,
2425 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2426 Elf_Internal_Rela *rel,
2427 struct elf_link_hash_entry *h,
2428 Elf_Internal_Sym *sym)
2429 {
2430 if (h != NULL)
2431 {
2432 switch (ELF64_R_TYPE (rel->r_info))
2433 {
2434 case R_SH_GNU_VTINHERIT:
2435 case R_SH_GNU_VTENTRY:
2436 break;
2437
2438 default:
2439 while (h->root.type == bfd_link_hash_indirect
2440 && h->root.u.i.link)
2441 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2442 switch (h->root.type)
2443 {
2444 case bfd_link_hash_defined:
2445 case bfd_link_hash_defweak:
2446 return h->root.u.def.section;
2447
2448 case bfd_link_hash_common:
2449 return h->root.u.c.p->section;
2450
2451 default:
2452 break;
2453 }
2454 }
2455 }
2456 else
2457 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
2458
2459 return NULL;
2460 }
2461
2462 /* Update the got entry reference counts for the section being removed. */
2463
2464 static bfd_boolean
2465 sh_elf64_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
2466 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2467 asection *sec ATTRIBUTE_UNUSED,
2468 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
2469 {
2470 /* No got and plt entries for 64-bit SH at present. */
2471 return TRUE;
2472 }
2473
2474 /* Look through the relocs for a section during the first phase.
2475 Since we don't do .gots or .plts, we just need to consider the
2476 virtual table relocs for gc. */
2477
2478 static bfd_boolean
2479 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2480 asection *sec, const Elf_Internal_Rela *relocs)
2481 {
2482 Elf_Internal_Shdr *symtab_hdr;
2483 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
2484 const Elf_Internal_Rela *rel;
2485 const Elf_Internal_Rela *rel_end;
2486 bfd *dynobj;
2487 bfd_vma *local_got_offsets;
2488 asection *sgot;
2489 asection *srelgot;
2490 asection *sreloc;
2491
2492 sgot = NULL;
2493 srelgot = NULL;
2494 sreloc = NULL;
2495
2496 if (info->relocatable)
2497 return TRUE;
2498
2499 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2500 sym_hashes = elf_sym_hashes (abfd);
2501 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym);
2502 if (!elf_bad_symtab (abfd))
2503 sym_hashes_end -= symtab_hdr->sh_info;
2504
2505 dynobj = elf_hash_table (info)->dynobj;
2506 local_got_offsets = elf_local_got_offsets (abfd);
2507
2508 rel_end = relocs + sec->reloc_count;
2509 for (rel = relocs; rel < rel_end; rel++)
2510 {
2511 struct elf_link_hash_entry *h;
2512 unsigned long r_symndx;
2513
2514 r_symndx = ELF64_R_SYM (rel->r_info);
2515 if (r_symndx < symtab_hdr->sh_info)
2516 h = NULL;
2517 else
2518 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2519
2520 /* Some relocs require a global offset table. */
2521 if (dynobj == NULL)
2522 {
2523 switch (ELF64_R_TYPE (rel->r_info))
2524 {
2525 case R_SH_GOTPLT_LOW16:
2526 case R_SH_GOTPLT_MEDLOW16:
2527 case R_SH_GOTPLT_MEDHI16:
2528 case R_SH_GOTPLT_HI16:
2529 case R_SH_GOTPLT10BY4:
2530 case R_SH_GOTPLT10BY8:
2531 case R_SH_GOT_LOW16:
2532 case R_SH_GOT_MEDLOW16:
2533 case R_SH_GOT_MEDHI16:
2534 case R_SH_GOT_HI16:
2535 case R_SH_GOT10BY4:
2536 case R_SH_GOT10BY8:
2537 case R_SH_GOTOFF_LOW16:
2538 case R_SH_GOTOFF_MEDLOW16:
2539 case R_SH_GOTOFF_MEDHI16:
2540 case R_SH_GOTOFF_HI16:
2541 case R_SH_GOTPC_LOW16:
2542 case R_SH_GOTPC_MEDLOW16:
2543 case R_SH_GOTPC_MEDHI16:
2544 case R_SH_GOTPC_HI16:
2545 elf_hash_table (info)->dynobj = dynobj = abfd;
2546 if (! _bfd_elf_create_got_section (dynobj, info))
2547 return FALSE;
2548 break;
2549
2550 default:
2551 break;
2552 }
2553 }
2554
2555 switch (ELF64_R_TYPE (rel->r_info))
2556 {
2557 /* This relocation describes the C++ object vtable hierarchy.
2558 Reconstruct it for later use during GC. */
2559 case R_SH_GNU_VTINHERIT:
2560 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2561 return FALSE;
2562 break;
2563
2564 /* This relocation describes which C++ vtable entries are actually
2565 used. Record for later use during GC. */
2566 case R_SH_GNU_VTENTRY:
2567 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2568 return FALSE;
2569 break;
2570
2571 force_got:
2572 case R_SH_GOT_LOW16:
2573 case R_SH_GOT_MEDLOW16:
2574 case R_SH_GOT_MEDHI16:
2575 case R_SH_GOT_HI16:
2576 case R_SH_GOT10BY4:
2577 case R_SH_GOT10BY8:
2578 /* This symbol requires a global offset table entry. */
2579
2580 if (sgot == NULL)
2581 {
2582 sgot = bfd_get_section_by_name (dynobj, ".got");
2583 BFD_ASSERT (sgot != NULL);
2584 }
2585
2586 if (srelgot == NULL
2587 && (h != NULL || info->shared))
2588 {
2589 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2590 if (srelgot == NULL)
2591 {
2592 srelgot = bfd_make_section (dynobj, ".rela.got");
2593 if (srelgot == NULL
2594 || ! bfd_set_section_flags (dynobj, srelgot,
2595 (SEC_ALLOC
2596 | SEC_LOAD
2597 | SEC_HAS_CONTENTS
2598 | SEC_IN_MEMORY
2599 | SEC_LINKER_CREATED
2600 | SEC_READONLY))
2601 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
2602 return FALSE;
2603 }
2604 }
2605
2606 if (h != NULL)
2607 {
2608 if (h->type == STT_DATALABEL)
2609 {
2610 struct elf_sh64_link_hash_entry *hsh;
2611
2612 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2613 hsh = (struct elf_sh64_link_hash_entry *)h;
2614 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2615 break;
2616
2617 hsh->datalabel_got_offset = sgot->size;
2618 }
2619 else
2620 {
2621 if (h->got.offset != (bfd_vma) -1)
2622 {
2623 /* We have already allocated space in the .got. */
2624 break;
2625 }
2626 h->got.offset = sgot->size;
2627 }
2628
2629 /* Make sure this symbol is output as a dynamic symbol. */
2630 if (h->dynindx == -1)
2631 {
2632 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2633 return FALSE;
2634 }
2635
2636 srelgot->size += sizeof (Elf64_External_Rela);
2637 }
2638 else
2639 {
2640 /* This is a global offset table entry for a local
2641 symbol. */
2642 if (local_got_offsets == NULL)
2643 {
2644 size_t size;
2645 register unsigned int i;
2646
2647 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2648 /* Reserve space for both the datalabel and
2649 codelabel local GOT offsets. */
2650 size *= 2;
2651 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2652 if (local_got_offsets == NULL)
2653 return FALSE;
2654 elf_local_got_offsets (abfd) = local_got_offsets;
2655 for (i = 0; i < symtab_hdr->sh_info; i++)
2656 local_got_offsets[i] = (bfd_vma) -1;
2657 for (; i < 2 * symtab_hdr->sh_info; i++)
2658 local_got_offsets[i] = (bfd_vma) -1;
2659 }
2660 if ((rel->r_addend & 1) != 0)
2661 {
2662 if (local_got_offsets[symtab_hdr->sh_info
2663 + r_symndx] != (bfd_vma) -1)
2664 {
2665 /* We have already allocated space in the .got. */
2666 break;
2667 }
2668 local_got_offsets[symtab_hdr->sh_info
2669 + r_symndx] = sgot->size;
2670 }
2671 else
2672 {
2673 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2674 {
2675 /* We have already allocated space in the .got. */
2676 break;
2677 }
2678 local_got_offsets[r_symndx] = sgot->size;
2679 }
2680
2681 if (info->shared)
2682 {
2683 /* If we are generating a shared object, we need to
2684 output a R_SH_RELATIVE reloc so that the dynamic
2685 linker can adjust this GOT entry. */
2686 srelgot->size += sizeof (Elf64_External_Rela);
2687 }
2688 }
2689
2690 sgot->size += 8;
2691
2692 break;
2693
2694 case R_SH_GOTPLT_LOW16:
2695 case R_SH_GOTPLT_MEDLOW16:
2696 case R_SH_GOTPLT_MEDHI16:
2697 case R_SH_GOTPLT_HI16:
2698 case R_SH_GOTPLT10BY4:
2699 case R_SH_GOTPLT10BY8:
2700 /* If this is a local symbol, we resolve it directly without
2701 creating a procedure linkage table entry. */
2702
2703 if (h == NULL
2704 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2705 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2706 || ! info->shared
2707 || info->symbolic
2708 || h->dynindx == -1
2709 || h->got.offset != (bfd_vma) -1)
2710 goto force_got;
2711
2712 /* Make sure this symbol is output as a dynamic symbol. */
2713 if (h->dynindx == -1)
2714 {
2715 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2716 return FALSE;
2717 }
2718
2719 h->needs_plt = 1;
2720
2721 break;
2722
2723 case R_SH_PLT_LOW16:
2724 case R_SH_PLT_MEDLOW16:
2725 case R_SH_PLT_MEDHI16:
2726 case R_SH_PLT_HI16:
2727 /* This symbol requires a procedure linkage table entry. We
2728 actually build the entry in adjust_dynamic_symbol,
2729 because this might be a case of linking PIC code which is
2730 never referenced by a dynamic object, in which case we
2731 don't need to generate a procedure linkage table entry
2732 after all. */
2733
2734 /* If this is a local symbol, we resolve it directly without
2735 creating a procedure linkage table entry. */
2736 if (h == NULL)
2737 continue;
2738
2739 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2740 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2741 break;
2742
2743 h->needs_plt = 1;
2744
2745 break;
2746
2747 case R_SH_64:
2748 case R_SH_64_PCREL:
2749 if (h != NULL)
2750 h->non_got_ref = 1;
2751
2752 /* If we are creating a shared library, and this is a reloc
2753 against a global symbol, or a non PC relative reloc
2754 against a local symbol, then we need to copy the reloc
2755 into the shared library. However, if we are linking with
2756 -Bsymbolic, we do not need to copy a reloc against a
2757 global symbol which is defined in an object we are
2758 including in the link (i.e., DEF_REGULAR is set). At
2759 this point we have not seen all the input files, so it is
2760 possible that DEF_REGULAR is not set now but will be set
2761 later (it is never cleared). We account for that
2762 possibility below by storing information in the
2763 pcrel_relocs_copied field of the hash table entry. */
2764 if (info->shared
2765 && (sec->flags & SEC_ALLOC) != 0
2766 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2767 || (h != NULL
2768 && (! info->symbolic
2769 || !h->def_regular))))
2770 {
2771 /* When creating a shared object, we must copy these
2772 reloc types into the output file. We create a reloc
2773 section in dynobj and make room for this reloc. */
2774 if (sreloc == NULL)
2775 {
2776 const char *name;
2777
2778 name = (bfd_elf_string_from_elf_section
2779 (abfd,
2780 elf_elfheader (abfd)->e_shstrndx,
2781 elf_section_data (sec)->rel_hdr.sh_name));
2782 if (name == NULL)
2783 return FALSE;
2784
2785 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2786 && strcmp (bfd_get_section_name (abfd, sec),
2787 name + 5) == 0);
2788
2789 sreloc = bfd_get_section_by_name (dynobj, name);
2790 if (sreloc == NULL)
2791 {
2792 flagword flags;
2793
2794 sreloc = bfd_make_section (dynobj, name);
2795 flags = (SEC_HAS_CONTENTS | SEC_READONLY
2796 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2797 if ((sec->flags & SEC_ALLOC) != 0)
2798 flags |= SEC_ALLOC | SEC_LOAD;
2799 if (sreloc == NULL
2800 || ! bfd_set_section_flags (dynobj, sreloc, flags)
2801 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
2802 return FALSE;
2803 }
2804 }
2805
2806 sreloc->size += sizeof (Elf64_External_Rela);
2807
2808 /* If we are linking with -Bsymbolic, and this is a
2809 global symbol, we count the number of PC relative
2810 relocations we have entered for this symbol, so that
2811 we can discard them again if the symbol is later
2812 defined by a regular object. Note that this function
2813 is only called if we are using an elf_sh linker
2814 hash table, which means that h is really a pointer to
2815 an elf_sh_link_hash_entry. */
2816 if (h != NULL && info->symbolic
2817 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2818 {
2819 struct elf_sh64_link_hash_entry *eh;
2820 struct elf_sh64_pcrel_relocs_copied *p;
2821
2822 eh = (struct elf_sh64_link_hash_entry *) h;
2823
2824 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2825 if (p->section == sreloc)
2826 break;
2827
2828 if (p == NULL)
2829 {
2830 p = ((struct elf_sh64_pcrel_relocs_copied *)
2831 bfd_alloc (dynobj, sizeof *p));
2832 if (p == NULL)
2833 return FALSE;
2834 p->next = eh->pcrel_relocs_copied;
2835 eh->pcrel_relocs_copied = p;
2836 p->section = sreloc;
2837 p->count = 0;
2838 }
2839
2840 ++p->count;
2841 }
2842 }
2843
2844 break;
2845 }
2846 }
2847
2848 return TRUE;
2849 }
2850
2851 static int
2852 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2853 {
2854 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2855 return STT_DATALABEL;
2856
2857 return type;
2858 }
2859
2860 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2861 Either file can presumably exist without the other, but do not differ
2862 in elf-size-ness. How to share?
2863
2864 Hook called by the linker routine which adds symbols from an object
2865 file. We must make indirect symbols for undefined symbols marked with
2866 STT_DATALABEL, so relocations passing them will pick up that attribute
2867 and neutralize STO_SH5_ISA32 found on the symbol definition.
2868
2869 There is a problem, though: We want to fill in the hash-table entry for
2870 this symbol and signal to the caller that no further processing is
2871 needed. But we don't have the index for this hash-table entry. We
2872 rely here on that the current entry is the first hash-entry with NULL,
2873 which seems brittle. Also, iterating over the hash-table to find that
2874 entry is a linear operation on the number of symbols in this input
2875 file, and this function should take constant time, so that's not good
2876 too. Only comfort is that DataLabel references should only be found in
2877 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2878 into adding an option to elf_add_symbol_hook (preferably) for the index
2879 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2880 (not so good). */
2881
2882 static bfd_boolean
2883 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2884 Elf_Internal_Sym *sym, const char **namep,
2885 flagword *flagsp ATTRIBUTE_UNUSED,
2886 asection **secp, bfd_vma *valp)
2887 {
2888 /* We want to do this for relocatable as well as final linking. */
2889 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2890 && is_elf_hash_table (info->hash))
2891 {
2892 struct elf_link_hash_entry *h;
2893
2894 /* For relocatable links, we register the DataLabel sym in its own
2895 right, and tweak the name when it's output. Otherwise, we make
2896 an indirect symbol of it. */
2897 flagword flags
2898 = info->relocatable || info->emitrelocations
2899 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2900
2901 char *dl_name
2902 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2903 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2904
2905 BFD_ASSERT (sym_hash != NULL);
2906
2907 /* Allocation may fail. */
2908 if (dl_name == NULL)
2909 return FALSE;
2910
2911 strcpy (dl_name, *namep);
2912 strcat (dl_name, DATALABEL_SUFFIX);
2913
2914 h = (struct elf_link_hash_entry *)
2915 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2916
2917 if (h == NULL)
2918 {
2919 /* No previous datalabel symbol. Make one. */
2920 struct bfd_link_hash_entry *bh = NULL;
2921 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2922
2923 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2924 flags, *secp, *valp,
2925 *namep, FALSE,
2926 bed->collect, &bh))
2927 {
2928 free (dl_name);
2929 return FALSE;
2930 }
2931
2932 h = (struct elf_link_hash_entry *) bh;
2933 h->non_elf = 0;
2934 h->type = STT_DATALABEL;
2935 }
2936 else
2937 /* If a new symbol was created, it holds the allocated name.
2938 Otherwise, we don't need it anymore and should deallocate it. */
2939 free (dl_name);
2940
2941 if (h->type != STT_DATALABEL
2942 || ((info->relocatable || info->emitrelocations)
2943 && h->root.type != bfd_link_hash_undefined)
2944 || (! info->relocatable && !info->emitrelocations
2945 && h->root.type != bfd_link_hash_indirect))
2946 {
2947 /* Make sure we don't get confused on invalid input. */
2948 (*_bfd_error_handler)
2949 (_("%s: encountered datalabel symbol in input"),
2950 bfd_get_filename (abfd));
2951 bfd_set_error (bfd_error_bad_value);
2952 return FALSE;
2953 }
2954
2955 /* Now find the hash-table slot for this entry and fill it in. */
2956 while (*sym_hash != NULL)
2957 sym_hash++;
2958 *sym_hash = h;
2959
2960 /* Signal to caller to skip this symbol - we've handled it. */
2961 *namep = NULL;
2962 }
2963
2964 return TRUE;
2965 }
2966
2967 /* This hook function is called before the linker writes out a global
2968 symbol. For relocatable links, DataLabel symbols will be present in
2969 linker output. We cut off the special suffix on those symbols, so the
2970 right name appears in the output.
2971
2972 When linking and emitting relocations, there can appear global symbols
2973 that are not referenced by relocs, but rather only implicitly through
2974 DataLabel references, a relation that is not visible to the linker.
2975 Since no stripping of global symbols in done when doing such linking,
2976 we don't need to look up and make sure to emit the main symbol for each
2977 DataLabel symbol. */
2978
2979 static bfd_boolean
2980 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2981 const char *cname,
2982 Elf_Internal_Sym *sym,
2983 asection *input_sec ATTRIBUTE_UNUSED,
2984 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2985 {
2986 char *name = (char *) cname;
2987
2988 if (info->relocatable || info->emitrelocations)
2989 {
2990 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2991 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2992 }
2993
2994 return TRUE;
2995 }
2996
2997 /* Set bit 0 on the entry address; it always points to SHmedia code. This
2998 is mostly for symmetry with the 32-bit format, where code can be
2999 SHcompact and we need to make a distinction to make sure execution
3000 starts in the right ISA mode. It is also convenient for a loader,
3001 which would otherwise have to set this bit when loading a TR register
3002 before jumping to the program entry. */
3003
3004 static void
3005 sh64_elf64_final_write_processing (bfd *abfd,
3006 bfd_boolean linker ATTRIBUTE_UNUSED)
3007 {
3008 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
3009 numerically, but we currently lack the infrastructure to recognize
3010 that: The entry symbol, and info whether it is numeric or a symbol
3011 name is kept private in the linker. */
3012 if (elf_elfheader (abfd)->e_type == ET_EXEC)
3013 elf_elfheader (abfd)->e_entry |= 1;
3014 }
3015
3016 /* First entry in an absolute procedure linkage table look like this. */
3017
3018 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
3019 {
3020 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
3021 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
3022 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
3023 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
3024 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3025 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3026 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3027 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3028 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3029 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3030 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3031 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3032 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3033 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3034 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3035 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3036 };
3037
3038 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
3039 {
3040 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
3041 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
3042 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
3043 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
3044 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3045 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3046 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3047 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3048 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3049 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3050 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3051 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3052 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3053 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3054 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3055 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3056 };
3057
3058 /* Sebsequent entries in an absolute procedure linkage table look like
3059 this. */
3060
3061 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
3062 {
3063 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
3064 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
3065 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
3066 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
3067 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
3068 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3069 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3070 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3071 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
3072 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
3073 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
3074 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3075 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3076 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3077 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3078 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3079 };
3080
3081 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
3082 {
3083 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
3084 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3085 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3086 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3087 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
3088 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3089 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3090 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3091 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
3092 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
3093 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
3094 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3095 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3096 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3097 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3098 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3099 };
3100
3101 /* Entries in a PIC procedure linkage table look like this. */
3102
3103 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3104 {
3105 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
3106 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
3107 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
3108 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3109 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3110 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3111 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3112 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3113 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3114 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
3115 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3116 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3117 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3118 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3119 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3120 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3121 };
3122
3123 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3124 {
3125 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3126 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3127 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
3128 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3129 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3130 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3131 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3132 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3133 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3134 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
3135 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3136 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3137 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3138 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3139 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3140 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3141 };
3142
3143 static const bfd_byte *elf_sh64_plt0_entry;
3144 static const bfd_byte *elf_sh64_plt_entry;
3145 static const bfd_byte *elf_sh64_pic_plt_entry;
3146
3147 /* Create an entry in an sh ELF linker hash table. */
3148
3149 static struct bfd_hash_entry *
3150 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
3151 struct bfd_hash_table *table,
3152 const char *string)
3153 {
3154 struct elf_sh64_link_hash_entry *ret =
3155 (struct elf_sh64_link_hash_entry *) entry;
3156
3157 /* Allocate the structure if it has not already been allocated by a
3158 subclass. */
3159 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3160 ret = ((struct elf_sh64_link_hash_entry *)
3161 bfd_hash_allocate (table,
3162 sizeof (struct elf_sh64_link_hash_entry)));
3163 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3164 return (struct bfd_hash_entry *) ret;
3165
3166 /* Call the allocation method of the superclass. */
3167 ret = ((struct elf_sh64_link_hash_entry *)
3168 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3169 table, string));
3170 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3171 {
3172 ret->pcrel_relocs_copied = NULL;
3173 ret->datalabel_got_offset = (bfd_vma) -1;
3174 }
3175
3176 return (struct bfd_hash_entry *) ret;
3177 }
3178
3179 /* Create an sh64 ELF linker hash table. */
3180
3181 static struct bfd_link_hash_table *
3182 sh64_elf64_link_hash_table_create (bfd *abfd)
3183 {
3184 struct elf_sh64_link_hash_table *ret;
3185
3186 ret = ((struct elf_sh64_link_hash_table *)
3187 bfd_malloc (sizeof (struct elf_sh64_link_hash_table)));
3188 if (ret == (struct elf_sh64_link_hash_table *) NULL)
3189 return NULL;
3190
3191 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
3192 sh64_elf64_link_hash_newfunc))
3193 {
3194 free (ret);
3195 return NULL;
3196 }
3197
3198 return &ret->root.root;
3199 }
3200
3201 inline static void
3202 movi_shori_putval (bfd *output_bfd, unsigned long value, char *addr)
3203 {
3204 bfd_put_32 (output_bfd,
3205 bfd_get_32 (output_bfd, addr)
3206 | ((value >> 6) & 0x3fffc00),
3207 addr);
3208 bfd_put_32 (output_bfd,
3209 bfd_get_32 (output_bfd, addr + 4)
3210 | ((value << 10) & 0x3fffc00),
3211 addr + 4);
3212 }
3213
3214 inline static void
3215 movi_3shori_putval (bfd *output_bfd, bfd_vma value, char *addr)
3216 {
3217 bfd_put_32 (output_bfd,
3218 bfd_get_32 (output_bfd, addr)
3219 | ((value >> 38) & 0x3fffc00),
3220 addr);
3221 bfd_put_32 (output_bfd,
3222 bfd_get_32 (output_bfd, addr + 4)
3223 | ((value >> 22) & 0x3fffc00),
3224 addr + 4);
3225 bfd_put_32 (output_bfd,
3226 bfd_get_32 (output_bfd, addr + 8)
3227 | ((value >> 6) & 0x3fffc00),
3228 addr + 8);
3229 bfd_put_32 (output_bfd,
3230 bfd_get_32 (output_bfd, addr + 12)
3231 | ((value << 10) & 0x3fffc00),
3232 addr + 12);
3233 }
3234
3235 /* Create dynamic sections when linking against a dynamic object. */
3236
3237 static bfd_boolean
3238 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3239 {
3240 flagword flags, pltflags;
3241 register asection *s;
3242 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3243 int ptralign = 0;
3244
3245 switch (bed->s->arch_size)
3246 {
3247 case 32:
3248 ptralign = 2;
3249 break;
3250
3251 case 64:
3252 ptralign = 3;
3253 break;
3254
3255 default:
3256 bfd_set_error (bfd_error_bad_value);
3257 return FALSE;
3258 }
3259
3260 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3261 .rel[a].bss sections. */
3262
3263 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3264 | SEC_LINKER_CREATED);
3265
3266 pltflags = flags;
3267 pltflags |= SEC_CODE;
3268 if (bed->plt_not_loaded)
3269 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3270 if (bed->plt_readonly)
3271 pltflags |= SEC_READONLY;
3272
3273 s = bfd_make_section (abfd, ".plt");
3274 if (s == NULL
3275 || ! bfd_set_section_flags (abfd, s, pltflags)
3276 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3277 return FALSE;
3278
3279 if (bed->want_plt_sym)
3280 {
3281 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3282 .plt section. */
3283 struct elf_link_hash_entry *h;
3284 struct bfd_link_hash_entry *bh = NULL;
3285
3286 if (! (_bfd_generic_link_add_one_symbol
3287 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3288 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3289 return FALSE;
3290
3291 h = (struct elf_link_hash_entry *) bh;
3292 h->def_regular = 1;
3293 h->type = STT_OBJECT;
3294
3295 if (info->shared
3296 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3297 return FALSE;
3298 }
3299
3300 s = bfd_make_section (abfd,
3301 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
3302 if (s == NULL
3303 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3304 || ! bfd_set_section_alignment (abfd, s, ptralign))
3305 return FALSE;
3306
3307 if (! _bfd_elf_create_got_section (abfd, info))
3308 return FALSE;
3309
3310 {
3311 const char *secname;
3312 char *relname;
3313 flagword secflags;
3314 asection *sec;
3315
3316 for (sec = abfd->sections; sec; sec = sec->next)
3317 {
3318 secflags = bfd_get_section_flags (abfd, sec);
3319 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
3320 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
3321 continue;
3322 secname = bfd_get_section_name (abfd, sec);
3323 relname = (char *) bfd_malloc (strlen (secname) + 6);
3324 strcpy (relname, ".rela");
3325 strcat (relname, secname);
3326 s = bfd_make_section (abfd, relname);
3327 if (s == NULL
3328 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3329 || ! bfd_set_section_alignment (abfd, s, ptralign))
3330 return FALSE;
3331 }
3332 }
3333
3334 if (bed->want_dynbss)
3335 {
3336 /* The .dynbss section is a place to put symbols which are defined
3337 by dynamic objects, are referenced by regular objects, and are
3338 not functions. We must allocate space for them in the process
3339 image and use a R_*_COPY reloc to tell the dynamic linker to
3340 initialize them at run time. The linker script puts the .dynbss
3341 section into the .bss section of the final image. */
3342 s = bfd_make_section (abfd, ".dynbss");
3343 if (s == NULL
3344 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
3345 return FALSE;
3346
3347 /* The .rel[a].bss section holds copy relocs. This section is not
3348 normally needed. We need to create it here, though, so that the
3349 linker will map it to an output section. We can't just create it
3350 only if we need it, because we will not know whether we need it
3351 until we have seen all the input files, and the first time the
3352 main linker code calls BFD after examining all the input files
3353 (size_dynamic_sections) the input sections have already been
3354 mapped to the output sections. If the section turns out not to
3355 be needed, we can discard it later. We will never need this
3356 section when generating a shared object, since they do not use
3357 copy relocs. */
3358 if (! info->shared)
3359 {
3360 s = bfd_make_section (abfd,
3361 (bed->default_use_rela_p
3362 ? ".rela.bss" : ".rel.bss"));
3363 if (s == NULL
3364 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3365 || ! bfd_set_section_alignment (abfd, s, ptralign))
3366 return FALSE;
3367 }
3368 }
3369
3370 return TRUE;
3371 }
3372 \f
3373 /* Adjust a symbol defined by a dynamic object and referenced by a
3374 regular object. The current definition is in some section of the
3375 dynamic object, but we're not including those sections. We have to
3376 change the definition to something the rest of the link can
3377 understand. */
3378
3379 static bfd_boolean
3380 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3381 struct elf_link_hash_entry *h)
3382 {
3383 bfd *dynobj;
3384 asection *s;
3385 unsigned int power_of_two;
3386
3387 dynobj = elf_hash_table (info)->dynobj;
3388
3389 /* Make sure we know what is going on here. */
3390 BFD_ASSERT (dynobj != NULL
3391 && (h->needs_plt
3392 || h->u.weakdef != NULL
3393 || (h->def_dynamic
3394 && h->ref_regular
3395 && !h->def_regular)));
3396
3397 /* If this is a function, put it in the procedure linkage table. We
3398 will fill in the contents of the procedure linkage table later,
3399 when we know the address of the .got section. */
3400 if (h->type == STT_FUNC
3401 || h->needs_plt)
3402 {
3403 if (! info->shared
3404 && !h->def_dynamic
3405 && !h->ref_dynamic)
3406 {
3407 /* This case can occur if we saw a PLT reloc in an input
3408 file, but the symbol was never referred to by a dynamic
3409 object. In such a case, we don't actually need to build
3410 a procedure linkage table, and we can just do a REL64
3411 reloc instead. */
3412 BFD_ASSERT (h->needs_plt);
3413 return TRUE;
3414 }
3415
3416 /* Make sure this symbol is output as a dynamic symbol. */
3417 if (h->dynindx == -1)
3418 {
3419 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3420 return FALSE;
3421 }
3422
3423 s = bfd_get_section_by_name (dynobj, ".plt");
3424 BFD_ASSERT (s != NULL);
3425
3426 /* If this is the first .plt entry, make room for the special
3427 first entry. */
3428 if (s->size == 0)
3429 s->size += PLT_ENTRY_SIZE;
3430
3431 /* If this symbol is not defined in a regular file, and we are
3432 not generating a shared library, then set the symbol to this
3433 location in the .plt. This is required to make function
3434 pointers compare as equal between the normal executable and
3435 the shared library. */
3436 if (! info->shared
3437 && !h->def_regular)
3438 {
3439 h->root.u.def.section = s;
3440 h->root.u.def.value = s->size;
3441 }
3442
3443 h->plt.offset = s->size;
3444
3445 /* Make room for this entry. */
3446 s->size += elf_sh64_sizeof_plt (info);
3447
3448 /* We also need to make an entry in the .got.plt section, which
3449 will be placed in the .got section by the linker script. */
3450
3451 s = bfd_get_section_by_name (dynobj, ".got.plt");
3452 BFD_ASSERT (s != NULL);
3453 s->size += 8;
3454
3455 /* We also need to make an entry in the .rela.plt section. */
3456
3457 s = bfd_get_section_by_name (dynobj, ".rela.plt");
3458 BFD_ASSERT (s != NULL);
3459 s->size += sizeof (Elf64_External_Rela);
3460
3461 return TRUE;
3462 }
3463
3464 /* If this is a weak symbol, and there is a real definition, the
3465 processor independent code will have arranged for us to see the
3466 real definition first, and we can just use the same value. */
3467 if (h->u.weakdef != NULL)
3468 {
3469 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3470 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3471 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3472 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3473 return TRUE;
3474 }
3475
3476 /* This is a reference to a symbol defined by a dynamic object which
3477 is not a function. */
3478
3479 /* If we are creating a shared library, we must presume that the
3480 only references to the symbol are via the global offset table.
3481 For such cases we need not do anything here; the relocations will
3482 be handled correctly by relocate_section. */
3483 if (info->shared)
3484 return TRUE;
3485
3486 /* If there are no references to this symbol that do not use the
3487 GOT, we don't need to generate a copy reloc. */
3488 if (!h->non_got_ref)
3489 return TRUE;
3490
3491 /* We must allocate the symbol in our .dynbss section, which will
3492 become part of the .bss section of the executable. There will be
3493 an entry for this symbol in the .dynsym section. The dynamic
3494 object will contain position independent code, so all references
3495 from the dynamic object to this symbol will go through the global
3496 offset table. The dynamic linker will use the .dynsym entry to
3497 determine the address it must put in the global offset table, so
3498 both the dynamic object and the regular object will refer to the
3499 same memory location for the variable. */
3500
3501 s = bfd_get_section_by_name (dynobj, ".dynbss");
3502 BFD_ASSERT (s != NULL);
3503
3504 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3505 copy the initial value out of the dynamic object and into the
3506 runtime process image. We need to remember the offset into the
3507 .rela.bss section we are going to use. */
3508 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3509 {
3510 asection *srel;
3511
3512 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
3513 BFD_ASSERT (srel != NULL);
3514 srel->size += sizeof (Elf64_External_Rela);
3515 h->needs_copy = 1;
3516 }
3517
3518 /* We need to figure out the alignment required for this symbol. I
3519 have no idea how ELF linkers handle this. */
3520 power_of_two = bfd_log2 (h->size);
3521 if (power_of_two > 3)
3522 power_of_two = 3;
3523
3524 /* Apply the required alignment. */
3525 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
3526 if (power_of_two > bfd_get_section_alignment (dynobj, s))
3527 {
3528 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
3529 return FALSE;
3530 }
3531
3532 /* Define the symbol as being at this point in the section. */
3533 h->root.u.def.section = s;
3534 h->root.u.def.value = s->size;
3535
3536 /* Increment the section size to make room for the symbol. */
3537 s->size += h->size;
3538
3539 return TRUE;
3540 }
3541
3542 /* This function is called via sh_elf_link_hash_traverse if we are
3543 creating a shared object with -Bsymbolic. It discards the space
3544 allocated to copy PC relative relocs against symbols which are
3545 defined in regular objects. We allocated space for them in the
3546 check_relocs routine, but we won't fill them in in the
3547 relocate_section routine. */
3548
3549 static bfd_boolean
3550 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3551 void *ignore ATTRIBUTE_UNUSED)
3552 {
3553 struct elf_sh64_pcrel_relocs_copied *s;
3554
3555 if (h->root.root.type == bfd_link_hash_warning)
3556 h = (struct elf_sh64_link_hash_entry *) h->root.root.u.i.link;
3557
3558 /* We only discard relocs for symbols defined in a regular object. */
3559 if (!h->root.def_regular)
3560 return TRUE;
3561
3562 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3563 s->section->size -= s->count * sizeof (Elf64_External_Rela);
3564
3565 return TRUE;
3566 }
3567
3568 /* Set the sizes of the dynamic sections. */
3569
3570 static bfd_boolean
3571 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3572 struct bfd_link_info *info)
3573 {
3574 bfd *dynobj;
3575 asection *s;
3576 bfd_boolean plt;
3577 bfd_boolean relocs;
3578 bfd_boolean reltext;
3579
3580 dynobj = elf_hash_table (info)->dynobj;
3581 BFD_ASSERT (dynobj != NULL);
3582
3583 if (elf_hash_table (info)->dynamic_sections_created)
3584 {
3585 /* Set the contents of the .interp section to the interpreter. */
3586 if (info->executable)
3587 {
3588 s = bfd_get_section_by_name (dynobj, ".interp");
3589 BFD_ASSERT (s != NULL);
3590 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3591 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3592 }
3593 }
3594 else
3595 {
3596 /* We may have created entries in the .rela.got section.
3597 However, if we are not creating the dynamic sections, we will
3598 not actually use these entries. Reset the size of .rela.got,
3599 which will cause it to get stripped from the output file
3600 below. */
3601 s = bfd_get_section_by_name (dynobj, ".rela.got");
3602 if (s != NULL)
3603 s->size = 0;
3604 }
3605
3606 /* If this is a -Bsymbolic shared link, then we need to discard all
3607 PC relative relocs against symbols defined in a regular object.
3608 We allocated space for them in the check_relocs routine, but we
3609 will not fill them in in the relocate_section routine. */
3610 if (info->shared && info->symbolic)
3611 sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info),
3612 sh64_elf64_discard_copies, NULL);
3613
3614 /* The check_relocs and adjust_dynamic_symbol entry points have
3615 determined the sizes of the various dynamic sections. Allocate
3616 memory for them. */
3617 plt = FALSE;
3618 relocs = FALSE;
3619 reltext = FALSE;
3620 for (s = dynobj->sections; s != NULL; s = s->next)
3621 {
3622 const char *name;
3623 bfd_boolean strip;
3624
3625 if ((s->flags & SEC_LINKER_CREATED) == 0)
3626 continue;
3627
3628 /* It's OK to base decisions on the section name, because none
3629 of the dynobj section names depend upon the input files. */
3630 name = bfd_get_section_name (dynobj, s);
3631
3632 strip = FALSE;
3633
3634 if (strcmp (name, ".plt") == 0)
3635 {
3636 if (s->size == 0)
3637 {
3638 /* Strip this section if we don't need it; see the
3639 comment below. */
3640 strip = TRUE;
3641 }
3642 else
3643 {
3644 /* Remember whether there is a PLT. */
3645 plt = TRUE;
3646 }
3647 }
3648 else if (strncmp (name, ".rela", 5) == 0)
3649 {
3650 if (s->size == 0)
3651 {
3652 /* If we don't need this section, strip it from the
3653 output file. This is mostly to handle .rela.bss and
3654 .rela.plt. We must create both sections in
3655 create_dynamic_sections, because they must be created
3656 before the linker maps input sections to output
3657 sections. The linker does that before
3658 adjust_dynamic_symbol is called, and it is that
3659 function which decides whether anything needs to go
3660 into these sections. */
3661 strip = TRUE;
3662 }
3663 else
3664 {
3665 asection *target;
3666
3667 /* Remember whether there are any reloc sections other
3668 than .rela.plt. */
3669 if (strcmp (name, ".rela.plt") != 0)
3670 {
3671 const char *outname;
3672
3673 relocs = TRUE;
3674
3675 /* If this relocation section applies to a read only
3676 section, then we probably need a DT_TEXTREL
3677 entry. The entries in the .rela.plt section
3678 really apply to the .got section, which we
3679 created ourselves and so know is not readonly. */
3680 outname = bfd_get_section_name (output_bfd,
3681 s->output_section);
3682 target = bfd_get_section_by_name (output_bfd, outname + 5);
3683 if (target != NULL
3684 && (target->flags & SEC_READONLY) != 0
3685 && (target->flags & SEC_ALLOC) != 0)
3686 reltext = TRUE;
3687 }
3688
3689 /* We use the reloc_count field as a counter if we need
3690 to copy relocs into the output file. */
3691 s->reloc_count = 0;
3692 }
3693 }
3694 else if (strncmp (name, ".got", 4) != 0)
3695 {
3696 /* It's not one of our sections, so don't allocate space. */
3697 continue;
3698 }
3699
3700 if (strip)
3701 {
3702 _bfd_strip_section_from_output (info, s);
3703 continue;
3704 }
3705
3706 /* Allocate memory for the section contents. */
3707 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3708 if (s->contents == NULL && s->size != 0)
3709 return FALSE;
3710 }
3711
3712 if (elf_hash_table (info)->dynamic_sections_created)
3713 {
3714 /* Add some entries to the .dynamic section. We fill in the
3715 values later, in sh64_elf64_finish_dynamic_sections, but we
3716 must add the entries now so that we get the correct size for
3717 the .dynamic section. The DT_DEBUG entry is filled in by the
3718 dynamic linker and used by the debugger. */
3719 if (info->executable)
3720 {
3721 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3722 return FALSE;
3723 }
3724
3725 if (plt)
3726 {
3727 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3728 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3729 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3730 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3731 return FALSE;
3732 }
3733
3734 if (relocs)
3735 {
3736 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3737 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3738 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3739 sizeof (Elf64_External_Rela)))
3740 return FALSE;
3741 }
3742
3743 if (reltext)
3744 {
3745 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3746 return FALSE;
3747 }
3748 }
3749
3750 return TRUE;
3751 }
3752
3753 /* Finish up dynamic symbol handling. We set the contents of various
3754 dynamic sections here. */
3755
3756 static bfd_boolean
3757 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3758 struct bfd_link_info *info,
3759 struct elf_link_hash_entry *h,
3760 Elf_Internal_Sym *sym)
3761 {
3762 bfd *dynobj;
3763
3764 dynobj = elf_hash_table (info)->dynobj;
3765
3766 if (h->plt.offset != (bfd_vma) -1)
3767 {
3768 asection *splt;
3769 asection *sgot;
3770 asection *srel;
3771
3772 bfd_vma plt_index;
3773 bfd_vma got_offset;
3774 Elf_Internal_Rela rel;
3775 bfd_byte *loc;
3776
3777 /* This symbol has an entry in the procedure linkage table. Set
3778 it up. */
3779
3780 BFD_ASSERT (h->dynindx != -1);
3781
3782 splt = bfd_get_section_by_name (dynobj, ".plt");
3783 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3784 srel = bfd_get_section_by_name (dynobj, ".rela.plt");
3785 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3786
3787 /* Get the index in the procedure linkage table which
3788 corresponds to this symbol. This is the index of this symbol
3789 in all the symbols for which we are making plt entries. The
3790 first entry in the procedure linkage table is reserved. */
3791 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3792
3793 /* Get the offset into the .got table of the entry that
3794 corresponds to this function. Each .got entry is 8 bytes.
3795 The first three are reserved. */
3796 got_offset = (plt_index + 3) * 8;
3797
3798 if (info->shared)
3799 got_offset -= GOT_BIAS;
3800
3801 /* Fill in the entry in the procedure linkage table. */
3802 if (! info->shared)
3803 {
3804 if (elf_sh64_plt_entry == NULL)
3805 {
3806 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3807 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3808 }
3809 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3810 elf_sh64_sizeof_plt (info));
3811 movi_3shori_putval (output_bfd,
3812 (sgot->output_section->vma
3813 + sgot->output_offset
3814 + got_offset),
3815 (splt->contents + h->plt.offset
3816 + elf_sh64_plt_symbol_offset (info)));
3817
3818 /* Set bottom bit because its for a branch to SHmedia */
3819 movi_shori_putval (output_bfd,
3820 -(h->plt.offset
3821 + elf_sh64_plt_plt0_offset (info) + 8)
3822 | 1,
3823 (splt->contents + h->plt.offset
3824 + elf_sh64_plt_plt0_offset (info)));
3825 }
3826 else
3827 {
3828 if (elf_sh64_pic_plt_entry == NULL)
3829 {
3830 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3831 elf_sh64_pic_plt_entry_be :
3832 elf_sh64_pic_plt_entry_le);
3833 }
3834 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3835 elf_sh64_sizeof_plt (info));
3836 movi_shori_putval (output_bfd, got_offset,
3837 (splt->contents + h->plt.offset
3838 + elf_sh64_plt_symbol_offset (info)));
3839 }
3840
3841 if (info->shared)
3842 got_offset += GOT_BIAS;
3843
3844 movi_shori_putval (output_bfd,
3845 plt_index * sizeof (Elf64_External_Rela),
3846 (splt->contents + h->plt.offset
3847 + elf_sh64_plt_reloc_offset (info)));
3848
3849 /* Fill in the entry in the global offset table. */
3850 bfd_put_64 (output_bfd,
3851 (splt->output_section->vma
3852 + splt->output_offset
3853 + h->plt.offset
3854 + elf_sh64_plt_temp_offset (info)),
3855 sgot->contents + got_offset);
3856
3857 /* Fill in the entry in the .rela.plt section. */
3858 rel.r_offset = (sgot->output_section->vma
3859 + sgot->output_offset
3860 + got_offset);
3861 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3862 rel.r_addend = 0;
3863 rel.r_addend = GOT_BIAS;
3864 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3865 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3866
3867 if (!h->def_regular)
3868 {
3869 /* Mark the symbol as undefined, rather than as defined in
3870 the .plt section. Leave the value alone. */
3871 sym->st_shndx = SHN_UNDEF;
3872 }
3873 }
3874
3875 if (h->got.offset != (bfd_vma) -1)
3876 {
3877 asection *sgot;
3878 asection *srel;
3879 Elf_Internal_Rela rel;
3880 bfd_byte *loc;
3881
3882 /* This symbol has an entry in the global offset table. Set it
3883 up. */
3884
3885 sgot = bfd_get_section_by_name (dynobj, ".got");
3886 srel = bfd_get_section_by_name (dynobj, ".rela.got");
3887 BFD_ASSERT (sgot != NULL && srel != NULL);
3888
3889 rel.r_offset = (sgot->output_section->vma
3890 + sgot->output_offset
3891 + (h->got.offset &~ 1));
3892
3893 /* If this is a -Bsymbolic link, and the symbol is defined
3894 locally, we just want to emit a RELATIVE reloc. Likewise if
3895 the symbol was forced to be local because of a version file.
3896 The entry in the global offset table will already have been
3897 initialized in the relocate_section function. */
3898 if (info->shared
3899 && (info->symbolic || h->dynindx == -1)
3900 && h->def_regular)
3901 {
3902 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3903 rel.r_addend = (h->root.u.def.value
3904 + h->root.u.def.section->output_section->vma
3905 + h->root.u.def.section->output_offset);
3906 }
3907 else
3908 {
3909 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3910 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3911 rel.r_addend = 0;
3912 }
3913
3914 loc = srel->contents;
3915 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3916 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3917 }
3918
3919 if (h->needs_copy)
3920 {
3921 asection *s;
3922 Elf_Internal_Rela rel;
3923 bfd_byte *loc;
3924
3925 /* This symbol needs a copy reloc. Set it up. */
3926
3927 BFD_ASSERT (h->dynindx != -1
3928 && (h->root.type == bfd_link_hash_defined
3929 || h->root.type == bfd_link_hash_defweak));
3930
3931 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3932 ".rela.bss");
3933 BFD_ASSERT (s != NULL);
3934
3935 rel.r_offset = (h->root.u.def.value
3936 + h->root.u.def.section->output_section->vma
3937 + h->root.u.def.section->output_offset);
3938 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3939 rel.r_addend = 0;
3940 loc = s->contents;
3941 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3942 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3943 }
3944
3945 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3946 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3947 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3948 sym->st_shndx = SHN_ABS;
3949
3950 return TRUE;
3951 }
3952
3953 /* Finish up the dynamic sections. */
3954
3955 static bfd_boolean
3956 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3957 struct bfd_link_info *info)
3958 {
3959 bfd *dynobj;
3960 asection *sgot;
3961 asection *sdyn;
3962
3963 dynobj = elf_hash_table (info)->dynobj;
3964
3965 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3966 BFD_ASSERT (sgot != NULL);
3967 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3968
3969 if (elf_hash_table (info)->dynamic_sections_created)
3970 {
3971 asection *splt;
3972 Elf64_External_Dyn *dyncon, *dynconend;
3973
3974 BFD_ASSERT (sdyn != NULL);
3975
3976 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3977 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3978 for (; dyncon < dynconend; dyncon++)
3979 {
3980 Elf_Internal_Dyn dyn;
3981 const char *name;
3982 asection *s;
3983 struct elf_link_hash_entry *h;
3984
3985 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3986
3987 switch (dyn.d_tag)
3988 {
3989 default:
3990 break;
3991
3992 case DT_INIT:
3993 name = info->init_function;
3994 goto get_sym;
3995
3996 case DT_FINI:
3997 name = info->fini_function;
3998 get_sym:
3999 if (dyn.d_un.d_val != 0)
4000 {
4001 h = elf_link_hash_lookup (elf_hash_table (info), name,
4002 FALSE, FALSE, TRUE);
4003 if (h != NULL && (h->other & STO_SH5_ISA32))
4004 {
4005 dyn.d_un.d_val |= 1;
4006 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4007 }
4008 }
4009 break;
4010
4011 case DT_PLTGOT:
4012 name = ".got";
4013 goto get_vma;
4014
4015 case DT_JMPREL:
4016 name = ".rela.plt";
4017 get_vma:
4018 s = bfd_get_section_by_name (output_bfd, name);
4019 BFD_ASSERT (s != NULL);
4020 dyn.d_un.d_ptr = s->vma;
4021 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4022 break;
4023
4024 case DT_PLTRELSZ:
4025 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
4026 BFD_ASSERT (s != NULL);
4027 dyn.d_un.d_val = s->size;
4028 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4029 break;
4030
4031 case DT_RELASZ:
4032 /* My reading of the SVR4 ABI indicates that the
4033 procedure linkage table relocs (DT_JMPREL) should be
4034 included in the overall relocs (DT_RELA). This is
4035 what Solaris does. However, UnixWare can not handle
4036 that case. Therefore, we override the DT_RELASZ entry
4037 here to make it not include the JMPREL relocs. Since
4038 the linker script arranges for .rela.plt to follow all
4039 other relocation sections, we don't have to worry
4040 about changing the DT_RELA entry. */
4041 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
4042 if (s != NULL)
4043 dyn.d_un.d_val -= s->size;
4044 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4045 break;
4046 }
4047 }
4048
4049 /* Fill in the first entry in the procedure linkage table. */
4050 splt = bfd_get_section_by_name (dynobj, ".plt");
4051 if (splt && splt->size > 0)
4052 {
4053 if (info->shared)
4054 {
4055 if (elf_sh64_pic_plt_entry == NULL)
4056 {
4057 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
4058 elf_sh64_pic_plt_entry_be :
4059 elf_sh64_pic_plt_entry_le);
4060 }
4061 memcpy (splt->contents, elf_sh64_pic_plt_entry,
4062 elf_sh64_sizeof_plt (info));
4063 }
4064 else
4065 {
4066 if (elf_sh64_plt0_entry == NULL)
4067 {
4068 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
4069 elf_sh64_plt0_entry_be :
4070 elf_sh64_plt0_entry_le);
4071 }
4072 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
4073 movi_3shori_putval (output_bfd,
4074 sgot->output_section->vma
4075 + sgot->output_offset,
4076 splt->contents
4077 + elf_sh64_plt0_gotplt_offset (info));
4078 }
4079
4080 /* UnixWare sets the entsize of .plt to 8, although that doesn't
4081 really seem like the right value. */
4082 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
4083 }
4084 }
4085
4086 /* Fill in the first three entries in the global offset table. */
4087 if (sgot->size > 0)
4088 {
4089 if (sdyn == NULL)
4090 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
4091 else
4092 bfd_put_64 (output_bfd,
4093 sdyn->output_section->vma + sdyn->output_offset,
4094 sgot->contents);
4095 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
4096 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
4097 }
4098
4099 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
4100
4101 return TRUE;
4102 }
4103
4104 /* Merge non visibility st_other attribute when the symbol comes from
4105 a dynamic object. */
4106 static void
4107 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
4108 const Elf_Internal_Sym *isym,
4109 bfd_boolean definition,
4110 bfd_boolean dynamic)
4111 {
4112 if (isym->st_other != 0 && dynamic)
4113 {
4114 unsigned char other;
4115
4116 /* Take the balance of OTHER from the definition. */
4117 other = (definition ? isym->st_other : h->other);
4118 other &= ~ ELF_ST_VISIBILITY (-1);
4119 h->other = other | ELF_ST_VISIBILITY (h->other);
4120 }
4121
4122 return;
4123 }
4124
4125 static struct bfd_elf_special_section const sh64_elf64_special_sections[]=
4126 {
4127 { ".cranges", 8, 0, SHT_PROGBITS, 0 },
4128 { NULL, 0, 0, 0, 0 }
4129 };
4130
4131 #define TARGET_BIG_SYM bfd_elf64_sh64_vec
4132 #define TARGET_BIG_NAME "elf64-sh64"
4133 #define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec
4134 #define TARGET_LITTLE_NAME "elf64-sh64l"
4135 #define ELF_ARCH bfd_arch_sh
4136 #define ELF_MACHINE_CODE EM_SH
4137 #define ELF_MAXPAGESIZE 128
4138
4139 #define elf_symbol_leading_char '_'
4140
4141 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
4142 #define elf_info_to_howto sh_elf64_info_to_howto
4143
4144 /* Note: there's no relaxation at present. */
4145
4146 #define elf_backend_relocate_section sh_elf64_relocate_section
4147 #define bfd_elf64_bfd_get_relocated_section_contents \
4148 sh_elf64_get_relocated_section_contents
4149 #define elf_backend_object_p sh_elf64_set_mach_from_flags
4150 #define bfd_elf64_bfd_set_private_flags \
4151 sh_elf64_set_private_flags
4152 #define bfd_elf64_bfd_copy_private_bfd_data \
4153 sh_elf64_copy_private_data
4154 #define bfd_elf64_bfd_merge_private_bfd_data \
4155 sh_elf64_merge_private_data
4156 #define elf_backend_fake_sections sh64_elf64_fake_sections
4157
4158 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
4159 #define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook
4160 #define elf_backend_check_relocs sh_elf64_check_relocs
4161
4162 #define elf_backend_can_gc_sections 1
4163
4164 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
4165
4166 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
4167
4168 #define elf_backend_link_output_symbol_hook \
4169 sh64_elf64_link_output_symbol_hook
4170
4171 #define elf_backend_merge_symbol_attribute \
4172 sh64_elf64_merge_symbol_attribute
4173
4174 #define elf_backend_final_write_processing \
4175 sh64_elf64_final_write_processing
4176
4177 #define elf_backend_create_dynamic_sections \
4178 sh64_elf64_create_dynamic_sections
4179 #define bfd_elf64_bfd_link_hash_table_create \
4180 sh64_elf64_link_hash_table_create
4181 #define elf_backend_adjust_dynamic_symbol \
4182 sh64_elf64_adjust_dynamic_symbol
4183 #define elf_backend_size_dynamic_sections \
4184 sh64_elf64_size_dynamic_sections
4185 #define elf_backend_finish_dynamic_symbol \
4186 sh64_elf64_finish_dynamic_symbol
4187 #define elf_backend_finish_dynamic_sections \
4188 sh64_elf64_finish_dynamic_sections
4189 #define elf_backend_special_sections sh64_elf64_special_sections
4190
4191 #define elf_backend_want_got_plt 1
4192 #define elf_backend_plt_readonly 1
4193 #define elf_backend_want_plt_sym 0
4194 #define elf_backend_got_header_size 24
4195
4196 #include "elf64-target.h"
4197
4198 /* NetBSD support. */
4199 #undef TARGET_BIG_SYM
4200 #define TARGET_BIG_SYM bfd_elf64_sh64nbsd_vec
4201 #undef TARGET_BIG_NAME
4202 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
4203 #undef TARGET_LITTLE_SYM
4204 #define TARGET_LITTLE_SYM bfd_elf64_sh64lnbsd_vec
4205 #undef TARGET_LITTLE_NAME
4206 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
4207 #undef ELF_MAXPAGESIZE
4208 #define ELF_MAXPAGESIZE 0x10000
4209 #undef elf_symbol_leading_char
4210 #define elf_symbol_leading_char 0
4211
4212 #define elf64_bed elf64_sh64_nbsd_bed
4213
4214 #include "elf64-target.h"
4215
4216 /* Linux support. */
4217 #undef TARGET_BIG_SYM
4218 #define TARGET_BIG_SYM bfd_elf64_sh64blin_vec
4219 #undef TARGET_BIG_NAME
4220 #define TARGET_BIG_NAME "elf64-sh64big-linux"
4221 #undef TARGET_LITTLE_SYM
4222 #define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec
4223 #undef TARGET_LITTLE_NAME
4224 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
4225
4226 #define INCLUDED_TARGET_FILE
4227 #include "elf64-target.h"
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