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* ld-mmix/bpo-1.d, ld-mmix/bpo-10.d, ld-mmix/bpo-11.d,
[binutils.git] / bfd / elf64-sh64.c
blobe0bc8df7e5d0fd9e3f1e6e01ca9808ac18c4fb34
1 /* SuperH SH64-specific support for 64-bit ELF
2 Copyright 2000, 2001, 2002, 2003 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 *, const Elf_Internal_Sym *, const char **,
145 flagword *, asection **, bfd_vma *);
146 static bfd_boolean sh64_elf64_link_output_symbol_hook
147 (bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *,
148 asection *);
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_2)
1536 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
1537 && r_type <= R_SH_GOTPLT32)
1538 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
1539 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4))
1540 {
1541 bfd_set_error (bfd_error_bad_value);
1542 return FALSE;
1543 }
1544
1545 howto = sh_elf64_howto_table + r_type;
1546
1547 /* This is a final link. */
1548 h = NULL;
1549 sym = NULL;
1550 sec = NULL;
1551 if (r_symndx < symtab_hdr->sh_info)
1552 {
1553 sym = local_syms + r_symndx;
1554 sec = local_sections[r_symndx];
1555 relocation = ((sec->output_section->vma
1556 + sec->output_offset
1557 + sym->st_value)
1558 | ((sym->st_other & STO_SH5_ISA32) != 0));
1559
1560 /* A local symbol never has STO_SH5_ISA32, so we don't need
1561 datalabel processing here. Make sure this does not change
1562 without notice. */
1563 if ((sym->st_other & STO_SH5_ISA32) != 0)
1564 ((*info->callbacks->reloc_dangerous)
1565 (info,
1566 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
1567 input_bfd, input_section, rel->r_offset));
1568
1569 if (info->relocatable)
1570 {
1571 /* This is a relocatable link. We don't have to change
1572 anything, unless the reloc is against a section symbol,
1573 in which case we have to adjust according to where the
1574 section symbol winds up in the output section. */
1575 sym = local_syms + r_symndx;
1576 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1577 goto final_link_relocate;
1578
1579 continue;
1580 }
1581 else if (! howto->partial_inplace)
1582 {
1583 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
1584 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0);
1585 }
1586 else if ((sec->flags & SEC_MERGE)
1587 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1588 {
1589 asection *msec;
1590
1591 if (howto->rightshift || howto->src_mask != 0xffffffff)
1592 {
1593 (*_bfd_error_handler)
1594 (_("%s(%s+0x%lx): %s relocation against SEC_MERGE section"),
1595 bfd_archive_filename (input_bfd),
1596 bfd_get_section_name (input_bfd, input_section),
1597 (long) rel->r_offset, howto->name);
1598 return FALSE;
1599 }
1600
1601 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1602 msec = sec;
1603 addend =
1604 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1605 - relocation;
1606 addend += msec->output_section->vma + msec->output_offset;
1607 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1608 addend = 0;
1609 }
1610 }
1611 else
1612 {
1613 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1614
1615 /* Section symbols are never (?) placed in the hash table, so
1616 we can just ignore hash relocations when creating a
1617 relocatable object file. */
1618 if (info->relocatable)
1619 continue;
1620
1621 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1622 while (h->root.type == bfd_link_hash_indirect
1623 || h->root.type == bfd_link_hash_warning)
1624 {
1625 /* If the reference passes a symbol marked with
1626 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1627 doesn't count. */
1628 seen_stt_datalabel |= h->type == STT_DATALABEL;
1629 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1630 }
1631
1632 if (h->root.type == bfd_link_hash_defined
1633 || h->root.type == bfd_link_hash_defweak)
1634 {
1635 sec = h->root.u.def.section;
1636 /* In these cases, we don't need the relocation value.
1637 We check specially because in some obscure cases
1638 sec->output_section will be NULL. */
1639 if (r_type == R_SH_GOTPC_LOW16
1640 || r_type == R_SH_GOTPC_MEDLOW16
1641 || r_type == R_SH_GOTPC_MEDHI16
1642 || r_type == R_SH_GOTPC_HI16
1643 || ((r_type == R_SH_PLT_LOW16
1644 || r_type == R_SH_PLT_MEDLOW16
1645 || r_type == R_SH_PLT_MEDHI16
1646 || r_type == R_SH_PLT_HI16)
1647 && h->plt.offset != (bfd_vma) -1)
1648 || ((r_type == R_SH_GOT_LOW16
1649 || r_type == R_SH_GOT_MEDLOW16
1650 || r_type == R_SH_GOT_MEDHI16
1651 || r_type == R_SH_GOT_HI16)
1652 && elf_hash_table (info)->dynamic_sections_created
1653 && (! info->shared
1654 || (! info->symbolic && h->dynindx != -1)
1655 || (h->elf_link_hash_flags
1656 & ELF_LINK_HASH_DEF_REGULAR) == 0))
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->elf_link_hash_flags
1665 & ELF_LINK_HASH_DEF_REGULAR) == 0)
1666 && ((r_type == R_SH_64
1667 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1668 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1669 || r_type == R_SH_64_PCREL)
1670 && ((input_section->flags & SEC_ALLOC) != 0
1671 /* DWARF will emit R_SH_DIR32 relocations in its
1672 sections against symbols defined externally
1673 in shared libraries. We can't do anything
1674 with them here. */
1675 || (input_section->flags & SEC_DEBUGGING) != 0))
1676 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1677 sections because such sections are not SEC_ALLOC and
1678 thus ld.so will not process them. */
1679 || (sec->output_section == NULL
1680 && ((input_section->flags & SEC_DEBUGGING) != 0
1681 && (h->elf_link_hash_flags
1682 & ELF_LINK_HASH_DEF_DYNAMIC) != 0)))
1683 relocation = 0;
1684 else if (sec->output_section == NULL)
1685 {
1686 (*_bfd_error_handler)
1687 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
1688 bfd_get_filename (input_bfd), h->root.root.string,
1689 bfd_get_section_name (input_bfd, input_section));
1690 relocation = 0;
1691 }
1692 else
1693 relocation = ((h->root.u.def.value
1694 + sec->output_section->vma
1695 + sec->output_offset)
1696 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1697 symbol value, unless we've seen
1698 STT_DATALABEL on the way to it. */
1699 | ((h->other & STO_SH5_ISA32) != 0
1700 && ! seen_stt_datalabel));
1701 }
1702 else if (h->root.type == bfd_link_hash_undefweak)
1703 relocation = 0;
1704 else if (info->shared
1705 && !info->symbolic
1706 && info->unresolved_syms_in_objects == RM_IGNORE)
1707 relocation = 0;
1708 else
1709 {
1710 if (! ((*info->callbacks->undefined_symbol)
1711 (info, h->root.root.string, input_bfd,
1712 input_section, rel->r_offset, TRUE)))
1713 return FALSE;
1714 relocation = 0;
1715 }
1716 }
1717
1718 disp = (relocation
1719 - input_section->output_section->vma
1720 - input_section->output_offset
1721 - rel->r_offset);
1722 dropped = 0;
1723 switch ((int)r_type)
1724 {
1725 case R_SH_PT_16: dropped = disp & 2; break;
1726 case R_SH_DIR10SW: dropped = disp & 1; break;
1727 case R_SH_DIR10SL: dropped = disp & 3; break;
1728 case R_SH_DIR10SQ: dropped = disp & 7; break;
1729 }
1730 if (dropped != 0)
1731 {
1732 (*_bfd_error_handler)
1733 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
1734 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation);
1735 bfd_set_error (bfd_error_bad_value);
1736 return FALSE;
1737 }
1738 switch ((int)r_type)
1739 {
1740 case R_SH_64:
1741 case R_SH_64_PCREL:
1742 if (info->shared
1743 && (input_section->flags & SEC_ALLOC) != 0
1744 && (r_type != R_SH_64_PCREL
1745 || (h != NULL
1746 && h->dynindx != -1
1747 && (! info->symbolic
1748 || (h->elf_link_hash_flags
1749 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
1750 {
1751 Elf_Internal_Rela outrel;
1752 bfd_byte *loc;
1753 bfd_boolean skip, relocate;
1754
1755 /* When generating a shared object, these relocations
1756 are copied into the output file to be resolved at run
1757 time. */
1758
1759 if (sreloc == NULL)
1760 {
1761 const char *name;
1762
1763 name = (bfd_elf_string_from_elf_section
1764 (input_bfd,
1765 elf_elfheader (input_bfd)->e_shstrndx,
1766 elf_section_data (input_section)->rel_hdr.sh_name));
1767 if (name == NULL)
1768 return FALSE;
1769
1770 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1771 && strcmp (bfd_get_section_name (input_bfd,
1772 input_section),
1773 name + 5) == 0);
1774
1775 sreloc = bfd_get_section_by_name (dynobj, name);
1776 BFD_ASSERT (sreloc != NULL);
1777 }
1778
1779 skip = FALSE;
1780 relocate = FALSE;
1781
1782 outrel.r_offset
1783 = _bfd_elf_section_offset (output_bfd, info,
1784 input_section, rel->r_offset);
1785
1786 if (outrel.r_offset == (bfd_vma) -1)
1787 skip = TRUE;
1788 else if (outrel.r_offset == (bfd_vma) -2)
1789 skip = TRUE, relocate = TRUE;
1790
1791 outrel.r_offset += (input_section->output_section->vma
1792 + input_section->output_offset);
1793
1794 if (skip)
1795 memset (&outrel, 0, sizeof outrel);
1796 else if (r_type == R_SH_64_PCREL)
1797 {
1798 BFD_ASSERT (h != NULL && h->dynindx != -1);
1799 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1800 outrel.r_addend = rel->r_addend;
1801 }
1802 else
1803 {
1804 /* h->dynindx may be -1 if this symbol was marked to
1805 become local. */
1806 if (h == NULL
1807 || ((info->symbolic || h->dynindx == -1)
1808 && (h->elf_link_hash_flags
1809 & ELF_LINK_HASH_DEF_REGULAR) != 0))
1810 {
1811 relocate = TRUE;
1812 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1813 outrel.r_addend = relocation + rel->r_addend;
1814 }
1815 else
1816 {
1817 BFD_ASSERT (h->dynindx != -1);
1818 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1819 outrel.r_addend = relocation + rel->r_addend;
1820 }
1821 }
1822
1823 loc = sreloc->contents;
1824 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1825 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1826
1827 /* If this reloc is against an external symbol, we do
1828 not want to fiddle with the addend. Otherwise, we
1829 need to include the symbol value so that it becomes
1830 an addend for the dynamic reloc. */
1831 if (! relocate)
1832 continue;
1833 }
1834 else if (r_type == R_SH_64)
1835 addend = rel->r_addend;
1836 goto final_link_relocate;
1837
1838 case R_SH_GOTPLT_LOW16:
1839 case R_SH_GOTPLT_MEDLOW16:
1840 case R_SH_GOTPLT_MEDHI16:
1841 case R_SH_GOTPLT_HI16:
1842 case R_SH_GOTPLT10BY4:
1843 case R_SH_GOTPLT10BY8:
1844 /* Relocation is to the entry for this symbol in the
1845 procedure linkage table. */
1846
1847 if (h == NULL
1848 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1849 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1850 || ! info->shared
1851 || info->symbolic
1852 || h->dynindx == -1
1853 || h->plt.offset == (bfd_vma) -1
1854 || h->got.offset != (bfd_vma) -1)
1855 goto force_got;
1856
1857 /* Relocation is to the entry for this symbol in the global
1858 offset table extension for the procedure linkage table. */
1859 if (sgotplt == NULL)
1860 {
1861 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1862 BFD_ASSERT (sgotplt != NULL);
1863 }
1864
1865 relocation = (sgotplt->output_offset
1866 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1867 - 1 + 3) * 8));
1868
1869 relocation -= GOT_BIAS;
1870
1871 goto final_link_relocate;
1872
1873 force_got:
1874 case R_SH_GOT_LOW16:
1875 case R_SH_GOT_MEDLOW16:
1876 case R_SH_GOT_MEDHI16:
1877 case R_SH_GOT_HI16:
1878 case R_SH_GOT10BY4:
1879 case R_SH_GOT10BY8:
1880 /* Relocation is to the entry for this symbol in the global
1881 offset table. */
1882 if (sgot == NULL)
1883 {
1884 sgot = bfd_get_section_by_name (dynobj, ".got");
1885 BFD_ASSERT (sgot != NULL);
1886 }
1887
1888 if (h != NULL)
1889 {
1890 bfd_vma off;
1891
1892 off = h->got.offset;
1893 if (seen_stt_datalabel)
1894 {
1895 struct elf_sh64_link_hash_entry *hsh;
1896
1897 hsh = (struct elf_sh64_link_hash_entry *)h;
1898 off = hsh->datalabel_got_offset;
1899 }
1900 BFD_ASSERT (off != (bfd_vma) -1);
1901
1902 if (! elf_hash_table (info)->dynamic_sections_created
1903 || (info->shared
1904 && (info->symbolic || h->dynindx == -1
1905 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1906 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1907 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
1908 {
1909 /* This is actually a static link, or it is a
1910 -Bsymbolic link and the symbol is defined
1911 locally, or the symbol was forced to be local
1912 because of a version file. We must initialize
1913 this entry in the global offset table. Since the
1914 offset must always be a multiple of 4, we use the
1915 least significant bit to record whether we have
1916 initialized it already.
1917
1918 When doing a dynamic link, we create a .rela.got
1919 relocation entry to initialize the value. This
1920 is done in the finish_dynamic_symbol routine. */
1921 if ((off & 1) != 0)
1922 off &= ~1;
1923 else
1924 {
1925 bfd_put_64 (output_bfd, relocation,
1926 sgot->contents + off);
1927 if (seen_stt_datalabel)
1928 {
1929 struct elf_sh64_link_hash_entry *hsh;
1930
1931 hsh = (struct elf_sh64_link_hash_entry *)h;
1932 hsh->datalabel_got_offset |= 1;
1933 }
1934 else
1935 h->got.offset |= 1;
1936 }
1937 }
1938
1939 relocation = sgot->output_offset + off;
1940 }
1941 else
1942 {
1943 bfd_vma off;
1944
1945 if (rel->r_addend)
1946 {
1947 BFD_ASSERT (local_got_offsets != NULL
1948 && (local_got_offsets[symtab_hdr->sh_info
1949 + r_symndx]
1950 != (bfd_vma) -1));
1951
1952 off = local_got_offsets[symtab_hdr->sh_info
1953 + r_symndx];
1954 }
1955 else
1956 {
1957 BFD_ASSERT (local_got_offsets != NULL
1958 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1959
1960 off = local_got_offsets[r_symndx];
1961 }
1962
1963 /* The offset must always be a multiple of 8. We use
1964 the least significant bit to record whether we have
1965 already generated the necessary reloc. */
1966 if ((off & 1) != 0)
1967 off &= ~1;
1968 else
1969 {
1970 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1971
1972 if (info->shared)
1973 {
1974 asection *s;
1975 Elf_Internal_Rela outrel;
1976 bfd_byte *loc;
1977
1978 s = bfd_get_section_by_name (dynobj, ".rela.got");
1979 BFD_ASSERT (s != NULL);
1980
1981 outrel.r_offset = (sgot->output_section->vma
1982 + sgot->output_offset
1983 + off);
1984 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1985 outrel.r_addend = relocation;
1986 loc = s->contents;
1987 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1988 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1989 }
1990
1991 if (rel->r_addend)
1992 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1993 else
1994 local_got_offsets[r_symndx] |= 1;
1995 }
1996
1997 relocation = sgot->output_offset + off;
1998 }
1999
2000 relocation -= GOT_BIAS;
2001
2002 goto final_link_relocate;
2003
2004 case R_SH_GOTOFF_LOW16:
2005 case R_SH_GOTOFF_MEDLOW16:
2006 case R_SH_GOTOFF_MEDHI16:
2007 case R_SH_GOTOFF_HI16:
2008 /* Relocation is relative to the start of the global offset
2009 table. */
2010
2011 if (sgot == NULL)
2012 {
2013 sgot = bfd_get_section_by_name (dynobj, ".got");
2014 BFD_ASSERT (sgot != NULL);
2015 }
2016
2017 /* Note that sgot->output_offset is not involved in this
2018 calculation. We always want the start of .got. If we
2019 defined _GLOBAL_OFFSET_TABLE in a different way, as is
2020 permitted by the ABI, we might have to change this
2021 calculation. */
2022 relocation -= sgot->output_section->vma;
2023
2024 relocation -= GOT_BIAS;
2025
2026 addend = rel->r_addend;
2027
2028 goto final_link_relocate;
2029
2030 case R_SH_GOTPC_LOW16:
2031 case R_SH_GOTPC_MEDLOW16:
2032 case R_SH_GOTPC_MEDHI16:
2033 case R_SH_GOTPC_HI16:
2034 /* Use global offset table as symbol value. */
2035
2036 if (sgot == NULL)
2037 {
2038 sgot = bfd_get_section_by_name (dynobj, ".got");
2039 BFD_ASSERT (sgot != NULL);
2040 }
2041
2042 relocation = sgot->output_section->vma;
2043
2044 relocation += GOT_BIAS;
2045
2046 addend = rel->r_addend;
2047
2048 goto final_link_relocate;
2049
2050 case R_SH_PLT_LOW16:
2051 case R_SH_PLT_MEDLOW16:
2052 case R_SH_PLT_MEDHI16:
2053 case R_SH_PLT_HI16:
2054 /* Relocation is to the entry for this symbol in the
2055 procedure linkage table. */
2056
2057 /* Resolve a PLT reloc against a local symbol directly,
2058 without using the procedure linkage table. */
2059 if (h == NULL)
2060 goto final_link_relocate;
2061
2062 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2063 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2064 goto final_link_relocate;
2065
2066 if (h->plt.offset == (bfd_vma) -1)
2067 {
2068 /* We didn't make a PLT entry for this symbol. This
2069 happens when statically linking PIC code, or when
2070 using -Bsymbolic. */
2071 goto final_link_relocate;
2072 }
2073
2074 if (splt == NULL)
2075 {
2076 splt = bfd_get_section_by_name (dynobj, ".plt");
2077 BFD_ASSERT (splt != NULL);
2078 }
2079
2080 relocation = (splt->output_section->vma
2081 + splt->output_offset
2082 + h->plt.offset);
2083 relocation++;
2084
2085 addend = rel->r_addend;
2086
2087 goto final_link_relocate;
2088
2089 case R_SH_DIR32:
2090 case R_SH_SHMEDIA_CODE:
2091 case R_SH_PT_16:
2092 case R_SH_DIR5U:
2093 case R_SH_DIR6S:
2094 case R_SH_DIR6U:
2095 case R_SH_DIR10S:
2096 case R_SH_DIR10SW:
2097 case R_SH_DIR10SL:
2098 case R_SH_DIR10SQ:
2099 case R_SH_IMMS16:
2100 case R_SH_IMMU16:
2101 case R_SH_IMM_LOW16:
2102 case R_SH_IMM_LOW16_PCREL:
2103 case R_SH_IMM_MEDLOW16:
2104 case R_SH_IMM_MEDLOW16_PCREL:
2105 case R_SH_IMM_MEDHI16:
2106 case R_SH_IMM_MEDHI16_PCREL:
2107 case R_SH_IMM_HI16:
2108 case R_SH_IMM_HI16_PCREL:
2109 addend = rel->r_addend;
2110 /* Fall through. */
2111 case R_SH_REL32:
2112 final_link_relocate:
2113 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2114 contents, rel->r_offset,
2115 relocation, addend);
2116 break;
2117
2118 default:
2119 bfd_set_error (bfd_error_bad_value);
2120 return FALSE;
2121
2122 }
2123
2124 if (r != bfd_reloc_ok)
2125 {
2126 switch (r)
2127 {
2128 default:
2129 case bfd_reloc_outofrange:
2130 abort ();
2131 case bfd_reloc_overflow:
2132 {
2133 const char *name;
2134
2135 if (h != NULL)
2136 name = h->root.root.string;
2137 else
2138 {
2139 name = (bfd_elf_string_from_elf_section
2140 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2141 if (name == NULL)
2142 return FALSE;
2143 if (*name == '\0')
2144 name = bfd_section_name (input_bfd, sec);
2145 }
2146 if (! ((*info->callbacks->reloc_overflow)
2147 (info, name, howto->name, (bfd_vma) 0,
2148 input_bfd, input_section, rel->r_offset)))
2149 return FALSE;
2150 }
2151 break;
2152 }
2153 }
2154 }
2155
2156 return TRUE;
2157 }
2158
2159 /* This is a version of bfd_generic_get_relocated_section_contents
2160 that uses sh_elf64_relocate_section.
2161
2162 See sh_elf_relocate_section in elf32-sh.c for the original. */
2163
2164 static bfd_byte *
2165 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2166 struct bfd_link_info *link_info,
2167 struct bfd_link_order *link_order,
2168 bfd_byte *data,
2169 bfd_boolean relocatable,
2170 asymbol **symbols)
2171 {
2172 Elf_Internal_Shdr *symtab_hdr;
2173 asection *input_section = link_order->u.indirect.section;
2174 bfd *input_bfd = input_section->owner;
2175 asection **sections = NULL;
2176 Elf_Internal_Rela *internal_relocs = NULL;
2177 Elf_Internal_Sym *isymbuf = NULL;
2178
2179 /* We only need to handle the case of relaxing, or of having a
2180 particular set of section contents, specially. */
2181 if (relocatable
2182 || elf_section_data (input_section)->this_hdr.contents == NULL)
2183 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2184 link_order, data,
2185 relocatable,
2186 symbols);
2187
2188 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2189
2190 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2191 input_section->_raw_size);
2192
2193 if ((input_section->flags & SEC_RELOC) != 0
2194 && input_section->reloc_count > 0)
2195 {
2196 Elf_Internal_Sym *isymp;
2197 Elf_Internal_Sym *isymend;
2198 asection **secpp;
2199
2200 /* Read this BFD's local symbols. */
2201 if (symtab_hdr->sh_info != 0)
2202 {
2203 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2204 if (isymbuf == NULL)
2205 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2206 symtab_hdr->sh_info, 0,
2207 NULL, NULL, NULL);
2208 if (isymbuf == NULL)
2209 goto error_return;
2210 }
2211
2212 internal_relocs = (_bfd_elf_link_read_relocs
2213 (input_bfd, input_section, NULL,
2214 (Elf_Internal_Rela *) NULL, FALSE));
2215 if (internal_relocs == NULL)
2216 goto error_return;
2217
2218 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2219 * sizeof (asection *));
2220 if (sections == NULL && symtab_hdr->sh_info > 0)
2221 goto error_return;
2222
2223 secpp = sections;
2224 isymend = isymbuf + symtab_hdr->sh_info;
2225 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2226 {
2227 asection *isec;
2228
2229 if (isymp->st_shndx == SHN_UNDEF)
2230 isec = bfd_und_section_ptr;
2231 else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
2232 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2233 else if (isymp->st_shndx == SHN_ABS)
2234 isec = bfd_abs_section_ptr;
2235 else if (isymp->st_shndx == SHN_COMMON)
2236 isec = bfd_com_section_ptr;
2237 else
2238 {
2239 /* Who knows? */
2240 isec = NULL;
2241 }
2242
2243 *secpp = isec;
2244 }
2245
2246 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2247 input_section, data, internal_relocs,
2248 isymbuf, sections))
2249 goto error_return;
2250
2251 if (sections != NULL)
2252 free (sections);
2253 if (internal_relocs != elf_section_data (input_section)->relocs)
2254 free (internal_relocs);
2255 if (isymbuf != NULL
2256 && (unsigned char *) isymbuf != symtab_hdr->contents)
2257 free (isymbuf);
2258 }
2259
2260 return data;
2261
2262 error_return:
2263 if (sections != NULL)
2264 free (sections);
2265 if (internal_relocs != NULL
2266 && internal_relocs != elf_section_data (input_section)->relocs)
2267 free (internal_relocs);
2268 if (isymbuf != NULL
2269 && (unsigned char *) isymbuf != symtab_hdr->contents)
2270 free (isymbuf);
2271 return NULL;
2272 }
2273
2274 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2275
2276 bfd_boolean
2277 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2278 Elf_Internal_Shdr *elf_section_hdr,
2279 asection *asect)
2280 {
2281 /* Code sections can only contain SH64 code, so mark them as such. */
2282 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2283 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2284
2285 return TRUE;
2286 }
2287
2288 static bfd_boolean
2289 sh_elf64_set_mach_from_flags (bfd *abfd)
2290 {
2291 flagword flags = elf_elfheader (abfd)->e_flags;
2292
2293 switch (flags & EF_SH_MACH_MASK)
2294 {
2295 case EF_SH5:
2296 /* Just one, but keep the switch construct to make additions easy. */
2297 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2298 break;
2299
2300 default:
2301 bfd_set_error (bfd_error_wrong_format);
2302 return FALSE;
2303 }
2304 return TRUE;
2305 }
2306
2307 /* Function to keep SH64 specific file flags.
2308
2309 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2310
2311 static bfd_boolean
2312 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2313 {
2314 BFD_ASSERT (! elf_flags_init (abfd)
2315 || elf_elfheader (abfd)->e_flags == flags);
2316
2317 elf_elfheader (abfd)->e_flags = flags;
2318 elf_flags_init (abfd) = TRUE;
2319 return sh_elf64_set_mach_from_flags (abfd);
2320 }
2321
2322 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2323 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2324
2325 static bfd_boolean
2326 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2327 {
2328 Elf_Internal_Shdr **o_shdrp;
2329 asection *isec;
2330 asection *osec;
2331
2332 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2333 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2334 return TRUE;
2335
2336 o_shdrp = elf_elfsections (obfd);
2337 for (osec = obfd->sections; osec; osec = osec->next)
2338 {
2339 int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx;
2340 for (isec = ibfd->sections; isec; isec = isec->next)
2341 {
2342 if (strcmp (osec->name, isec->name) == 0)
2343 {
2344 /* Note that we're not disallowing mixing data and code. */
2345 if ((elf_section_data (isec)->this_hdr.sh_flags
2346 & SHF_SH5_ISA32) != 0)
2347 o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32;
2348 break;
2349 }
2350 }
2351 }
2352
2353 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2354 }
2355
2356 static bfd_boolean
2357 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2358 {
2359 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2360 }
2361
2362 static bfd_boolean
2363 sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd)
2364 {
2365 flagword old_flags, new_flags;
2366
2367 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
2368 return FALSE;
2369
2370 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2371 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2372 return TRUE;
2373
2374 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2375 {
2376 const char *msg;
2377
2378 if (bfd_get_arch_size (ibfd) == 32
2379 && bfd_get_arch_size (obfd) == 64)
2380 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
2381 else if (bfd_get_arch_size (ibfd) == 64
2382 && bfd_get_arch_size (obfd) == 32)
2383 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
2384 else
2385 msg = _("%s: object size does not match that of target %s");
2386
2387 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
2388 bfd_get_filename (obfd));
2389 bfd_set_error (bfd_error_wrong_format);
2390 return FALSE;
2391 }
2392
2393 old_flags = elf_elfheader (obfd)->e_flags;
2394 new_flags = elf_elfheader (ibfd)->e_flags;
2395 if (! elf_flags_init (obfd))
2396 {
2397 /* This happens when ld starts out with a 'blank' output file. */
2398 elf_flags_init (obfd) = TRUE;
2399 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2400 }
2401 /* We don't allow linking in anything else than SH64 code, and since
2402 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2403 here as things change. */
2404 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2405 {
2406 (*_bfd_error_handler)
2407 ("%s: does not use the SH64 64-bit ABI as previous modules do",
2408 bfd_get_filename (ibfd));
2409 bfd_set_error (bfd_error_bad_value);
2410 return FALSE;
2411 }
2412
2413 sh_elf64_copy_private_data_internal (ibfd, obfd);
2414
2415 /* I can't think of anything sane other than old_flags being EF_SH5 and
2416 that we need to preserve that. */
2417 elf_elfheader (obfd)->e_flags = old_flags;
2418
2419 return sh_elf64_set_mach_from_flags (obfd);
2420 }
2421
2422 /* Return the section that should be marked against GC for a given
2423 relocation. */
2424
2425 static asection *
2426 sh_elf64_gc_mark_hook (asection *sec,
2427 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2428 Elf_Internal_Rela *rel,
2429 struct elf_link_hash_entry *h,
2430 Elf_Internal_Sym *sym)
2431 {
2432 if (h != NULL)
2433 {
2434 switch (ELF64_R_TYPE (rel->r_info))
2435 {
2436 case R_SH_GNU_VTINHERIT:
2437 case R_SH_GNU_VTENTRY:
2438 break;
2439
2440 default:
2441 while (h->root.type == bfd_link_hash_indirect
2442 && h->root.u.i.link)
2443 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2444 switch (h->root.type)
2445 {
2446 case bfd_link_hash_defined:
2447 case bfd_link_hash_defweak:
2448 return h->root.u.def.section;
2449
2450 case bfd_link_hash_common:
2451 return h->root.u.c.p->section;
2452
2453 default:
2454 break;
2455 }
2456 }
2457 }
2458 else
2459 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
2460
2461 return NULL;
2462 }
2463
2464 /* Update the got entry reference counts for the section being removed. */
2465
2466 static bfd_boolean
2467 sh_elf64_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
2468 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2469 asection *sec ATTRIBUTE_UNUSED,
2470 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
2471 {
2472 /* No got and plt entries for 64-bit SH at present. */
2473 return TRUE;
2474 }
2475
2476 /* Look through the relocs for a section during the first phase.
2477 Since we don't do .gots or .plts, we just need to consider the
2478 virtual table relocs for gc. */
2479
2480 static bfd_boolean
2481 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2482 asection *sec, const Elf_Internal_Rela *relocs)
2483 {
2484 Elf_Internal_Shdr *symtab_hdr;
2485 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
2486 const Elf_Internal_Rela *rel;
2487 const Elf_Internal_Rela *rel_end;
2488 bfd *dynobj;
2489 bfd_vma *local_got_offsets;
2490 asection *sgot;
2491 asection *srelgot;
2492 asection *sreloc;
2493
2494 sgot = NULL;
2495 srelgot = NULL;
2496 sreloc = NULL;
2497
2498 if (info->relocatable)
2499 return TRUE;
2500
2501 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2502 sym_hashes = elf_sym_hashes (abfd);
2503 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym);
2504 if (!elf_bad_symtab (abfd))
2505 sym_hashes_end -= symtab_hdr->sh_info;
2506
2507 dynobj = elf_hash_table (info)->dynobj;
2508 local_got_offsets = elf_local_got_offsets (abfd);
2509
2510 rel_end = relocs + sec->reloc_count;
2511 for (rel = relocs; rel < rel_end; rel++)
2512 {
2513 struct elf_link_hash_entry *h;
2514 unsigned long r_symndx;
2515
2516 r_symndx = ELF64_R_SYM (rel->r_info);
2517 if (r_symndx < symtab_hdr->sh_info)
2518 h = NULL;
2519 else
2520 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2521
2522 /* Some relocs require a global offset table. */
2523 if (dynobj == NULL)
2524 {
2525 switch (ELF64_R_TYPE (rel->r_info))
2526 {
2527 case R_SH_GOTPLT_LOW16:
2528 case R_SH_GOTPLT_MEDLOW16:
2529 case R_SH_GOTPLT_MEDHI16:
2530 case R_SH_GOTPLT_HI16:
2531 case R_SH_GOTPLT10BY4:
2532 case R_SH_GOTPLT10BY8:
2533 case R_SH_GOT_LOW16:
2534 case R_SH_GOT_MEDLOW16:
2535 case R_SH_GOT_MEDHI16:
2536 case R_SH_GOT_HI16:
2537 case R_SH_GOT10BY4:
2538 case R_SH_GOT10BY8:
2539 case R_SH_GOTOFF_LOW16:
2540 case R_SH_GOTOFF_MEDLOW16:
2541 case R_SH_GOTOFF_MEDHI16:
2542 case R_SH_GOTOFF_HI16:
2543 case R_SH_GOTPC_LOW16:
2544 case R_SH_GOTPC_MEDLOW16:
2545 case R_SH_GOTPC_MEDHI16:
2546 case R_SH_GOTPC_HI16:
2547 elf_hash_table (info)->dynobj = dynobj = abfd;
2548 if (! _bfd_elf_create_got_section (dynobj, info))
2549 return FALSE;
2550 break;
2551
2552 default:
2553 break;
2554 }
2555 }
2556
2557 switch (ELF64_R_TYPE (rel->r_info))
2558 {
2559 /* This relocation describes the C++ object vtable hierarchy.
2560 Reconstruct it for later use during GC. */
2561 case R_SH_GNU_VTINHERIT:
2562 if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2563 return FALSE;
2564 break;
2565
2566 /* This relocation describes which C++ vtable entries are actually
2567 used. Record for later use during GC. */
2568 case R_SH_GNU_VTENTRY:
2569 if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2570 return FALSE;
2571 break;
2572
2573 force_got:
2574 case R_SH_GOT_LOW16:
2575 case R_SH_GOT_MEDLOW16:
2576 case R_SH_GOT_MEDHI16:
2577 case R_SH_GOT_HI16:
2578 case R_SH_GOT10BY4:
2579 case R_SH_GOT10BY8:
2580 /* This symbol requires a global offset table entry. */
2581
2582 if (sgot == NULL)
2583 {
2584 sgot = bfd_get_section_by_name (dynobj, ".got");
2585 BFD_ASSERT (sgot != NULL);
2586 }
2587
2588 if (srelgot == NULL
2589 && (h != NULL || info->shared))
2590 {
2591 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2592 if (srelgot == NULL)
2593 {
2594 srelgot = bfd_make_section (dynobj, ".rela.got");
2595 if (srelgot == NULL
2596 || ! bfd_set_section_flags (dynobj, srelgot,
2597 (SEC_ALLOC
2598 | SEC_LOAD
2599 | SEC_HAS_CONTENTS
2600 | SEC_IN_MEMORY
2601 | SEC_LINKER_CREATED
2602 | SEC_READONLY))
2603 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
2604 return FALSE;
2605 }
2606 }
2607
2608 if (h != NULL)
2609 {
2610 if (h->type == STT_DATALABEL)
2611 {
2612 struct elf_sh64_link_hash_entry *hsh;
2613
2614 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2615 hsh = (struct elf_sh64_link_hash_entry *)h;
2616 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2617 break;
2618
2619 hsh->datalabel_got_offset = sgot->_raw_size;
2620 }
2621 else
2622 {
2623 if (h->got.offset != (bfd_vma) -1)
2624 {
2625 /* We have already allocated space in the .got. */
2626 break;
2627 }
2628 h->got.offset = sgot->_raw_size;
2629 }
2630
2631 /* Make sure this symbol is output as a dynamic symbol. */
2632 if (h->dynindx == -1)
2633 {
2634 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
2635 return FALSE;
2636 }
2637
2638 srelgot->_raw_size += sizeof (Elf64_External_Rela);
2639 }
2640 else
2641 {
2642 /* This is a global offset table entry for a local
2643 symbol. */
2644 if (local_got_offsets == NULL)
2645 {
2646 size_t size;
2647 register unsigned int i;
2648
2649 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2650 /* Reserve space for both the datalabel and
2651 codelabel local GOT offsets. */
2652 size *= 2;
2653 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2654 if (local_got_offsets == NULL)
2655 return FALSE;
2656 elf_local_got_offsets (abfd) = local_got_offsets;
2657 for (i = 0; i < symtab_hdr->sh_info; i++)
2658 local_got_offsets[i] = (bfd_vma) -1;
2659 for (; i < 2 * symtab_hdr->sh_info; i++)
2660 local_got_offsets[i] = (bfd_vma) -1;
2661 }
2662 if ((rel->r_addend & 1) != 0)
2663 {
2664 if (local_got_offsets[symtab_hdr->sh_info
2665 + r_symndx] != (bfd_vma) -1)
2666 {
2667 /* We have already allocated space in the .got. */
2668 break;
2669 }
2670 local_got_offsets[symtab_hdr->sh_info
2671 + r_symndx] = sgot->_raw_size;
2672 }
2673 else
2674 {
2675 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2676 {
2677 /* We have already allocated space in the .got. */
2678 break;
2679 }
2680 local_got_offsets[r_symndx] = sgot->_raw_size;
2681 }
2682
2683 if (info->shared)
2684 {
2685 /* If we are generating a shared object, we need to
2686 output a R_SH_RELATIVE reloc so that the dynamic
2687 linker can adjust this GOT entry. */
2688 srelgot->_raw_size += sizeof (Elf64_External_Rela);
2689 }
2690 }
2691
2692 sgot->_raw_size += 8;
2693
2694 break;
2695
2696 case R_SH_GOTPLT_LOW16:
2697 case R_SH_GOTPLT_MEDLOW16:
2698 case R_SH_GOTPLT_MEDHI16:
2699 case R_SH_GOTPLT_HI16:
2700 case R_SH_GOTPLT10BY4:
2701 case R_SH_GOTPLT10BY8:
2702 /* If this is a local symbol, we resolve it directly without
2703 creating a procedure linkage table entry. */
2704
2705 if (h == NULL
2706 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2707 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2708 || ! info->shared
2709 || info->symbolic
2710 || h->dynindx == -1
2711 || h->got.offset != (bfd_vma) -1)
2712 goto force_got;
2713
2714 /* Make sure this symbol is output as a dynamic symbol. */
2715 if (h->dynindx == -1)
2716 {
2717 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
2718 return FALSE;
2719 }
2720
2721 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2722
2723 break;
2724
2725 case R_SH_PLT_LOW16:
2726 case R_SH_PLT_MEDLOW16:
2727 case R_SH_PLT_MEDHI16:
2728 case R_SH_PLT_HI16:
2729 /* This symbol requires a procedure linkage table entry. We
2730 actually build the entry in adjust_dynamic_symbol,
2731 because this might be a case of linking PIC code which is
2732 never referenced by a dynamic object, in which case we
2733 don't need to generate a procedure linkage table entry
2734 after all. */
2735
2736 /* If this is a local symbol, we resolve it directly without
2737 creating a procedure linkage table entry. */
2738 if (h == NULL)
2739 continue;
2740
2741 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2742 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2743 break;
2744
2745 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2746
2747 break;
2748
2749 case R_SH_64:
2750 case R_SH_64_PCREL:
2751 if (h != NULL)
2752 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
2753
2754 /* If we are creating a shared library, and this is a reloc
2755 against a global symbol, or a non PC relative reloc
2756 against a local symbol, then we need to copy the reloc
2757 into the shared library. However, if we are linking with
2758 -Bsymbolic, we do not need to copy a reloc against a
2759 global symbol which is defined in an object we are
2760 including in the link (i.e., DEF_REGULAR is set). At
2761 this point we have not seen all the input files, so it is
2762 possible that DEF_REGULAR is not set now but will be set
2763 later (it is never cleared). We account for that
2764 possibility below by storing information in the
2765 pcrel_relocs_copied field of the hash table entry. */
2766 if (info->shared
2767 && (sec->flags & SEC_ALLOC) != 0
2768 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2769 || (h != NULL
2770 && (! info->symbolic
2771 || (h->elf_link_hash_flags
2772 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
2773 {
2774 /* When creating a shared object, we must copy these
2775 reloc types into the output file. We create a reloc
2776 section in dynobj and make room for this reloc. */
2777 if (sreloc == NULL)
2778 {
2779 const char *name;
2780
2781 name = (bfd_elf_string_from_elf_section
2782 (abfd,
2783 elf_elfheader (abfd)->e_shstrndx,
2784 elf_section_data (sec)->rel_hdr.sh_name));
2785 if (name == NULL)
2786 return FALSE;
2787
2788 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2789 && strcmp (bfd_get_section_name (abfd, sec),
2790 name + 5) == 0);
2791
2792 sreloc = bfd_get_section_by_name (dynobj, name);
2793 if (sreloc == NULL)
2794 {
2795 flagword flags;
2796
2797 sreloc = bfd_make_section (dynobj, name);
2798 flags = (SEC_HAS_CONTENTS | SEC_READONLY
2799 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2800 if ((sec->flags & SEC_ALLOC) != 0)
2801 flags |= SEC_ALLOC | SEC_LOAD;
2802 if (sreloc == NULL
2803 || ! bfd_set_section_flags (dynobj, sreloc, flags)
2804 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
2805 return FALSE;
2806 }
2807 }
2808
2809 sreloc->_raw_size += sizeof (Elf64_External_Rela);
2810
2811 /* If we are linking with -Bsymbolic, and this is a
2812 global symbol, we count the number of PC relative
2813 relocations we have entered for this symbol, so that
2814 we can discard them again if the symbol is later
2815 defined by a regular object. Note that this function
2816 is only called if we are using an elf_sh linker
2817 hash table, which means that h is really a pointer to
2818 an elf_sh_link_hash_entry. */
2819 if (h != NULL && info->symbolic
2820 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2821 {
2822 struct elf_sh64_link_hash_entry *eh;
2823 struct elf_sh64_pcrel_relocs_copied *p;
2824
2825 eh = (struct elf_sh64_link_hash_entry *) h;
2826
2827 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2828 if (p->section == sreloc)
2829 break;
2830
2831 if (p == NULL)
2832 {
2833 p = ((struct elf_sh64_pcrel_relocs_copied *)
2834 bfd_alloc (dynobj, sizeof *p));
2835 if (p == NULL)
2836 return FALSE;
2837 p->next = eh->pcrel_relocs_copied;
2838 eh->pcrel_relocs_copied = p;
2839 p->section = sreloc;
2840 p->count = 0;
2841 }
2842
2843 ++p->count;
2844 }
2845 }
2846
2847 break;
2848 }
2849 }
2850
2851 return TRUE;
2852 }
2853
2854 static int
2855 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2856 {
2857 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2858 return STT_DATALABEL;
2859
2860 return type;
2861 }
2862
2863 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2864 Either file can presumably exist without the other, but do not differ
2865 in elf-size-ness. How to share?
2866
2867 Hook called by the linker routine which adds symbols from an object
2868 file. We must make indirect symbols for undefined symbols marked with
2869 STT_DATALABEL, so relocations passing them will pick up that attribute
2870 and neutralize STO_SH5_ISA32 found on the symbol definition.
2871
2872 There is a problem, though: We want to fill in the hash-table entry for
2873 this symbol and signal to the caller that no further processing is
2874 needed. But we don't have the index for this hash-table entry. We
2875 rely here on that the current entry is the first hash-entry with NULL,
2876 which seems brittle. Also, iterating over the hash-table to find that
2877 entry is a linear operation on the number of symbols in this input
2878 file, and this function should take constant time, so that's not good
2879 too. Only comfort is that DataLabel references should only be found in
2880 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2881 into adding an option to elf_add_symbol_hook (preferably) for the index
2882 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2883 (not so good). */
2884
2885 static bfd_boolean
2886 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2887 const Elf_Internal_Sym *sym, const char **namep,
2888 flagword *flagsp ATTRIBUTE_UNUSED,
2889 asection **secp, bfd_vma *valp)
2890 {
2891 /* We want to do this for relocatable as well as final linking. */
2892 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2893 && info->hash->creator->flavour == bfd_target_elf_flavour)
2894 {
2895 struct elf_link_hash_entry *h;
2896
2897 /* For relocatable links, we register the DataLabel sym in its own
2898 right, and tweak the name when it's output. Otherwise, we make
2899 an indirect symbol of it. */
2900 flagword flags
2901 = info->relocatable || info->emitrelocations
2902 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2903
2904 char *dl_name
2905 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2906 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2907
2908 BFD_ASSERT (sym_hash != NULL);
2909
2910 /* Allocation may fail. */
2911 if (dl_name == NULL)
2912 return FALSE;
2913
2914 strcpy (dl_name, *namep);
2915 strcat (dl_name, DATALABEL_SUFFIX);
2916
2917 h = (struct elf_link_hash_entry *)
2918 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2919
2920 if (h == NULL)
2921 {
2922 /* No previous datalabel symbol. Make one. */
2923 struct bfd_link_hash_entry *bh = NULL;
2924 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2925
2926 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2927 flags, *secp, *valp,
2928 *namep, FALSE,
2929 bed->collect, &bh))
2930 {
2931 free (dl_name);
2932 return FALSE;
2933 }
2934
2935 h = (struct elf_link_hash_entry *) bh;
2936 h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF;
2937 h->type = STT_DATALABEL;
2938 }
2939 else
2940 /* If a new symbol was created, it holds the allocated name.
2941 Otherwise, we don't need it anymore and should deallocate it. */
2942 free (dl_name);
2943
2944 if (h->type != STT_DATALABEL
2945 || ((info->relocatable || info->emitrelocations)
2946 && h->root.type != bfd_link_hash_undefined)
2947 || (! info->relocatable && !info->emitrelocations
2948 && h->root.type != bfd_link_hash_indirect))
2949 {
2950 /* Make sure we don't get confused on invalid input. */
2951 (*_bfd_error_handler)
2952 (_("%s: encountered datalabel symbol in input"),
2953 bfd_get_filename (abfd));
2954 bfd_set_error (bfd_error_bad_value);
2955 return FALSE;
2956 }
2957
2958 /* Now find the hash-table slot for this entry and fill it in. */
2959 while (*sym_hash != NULL)
2960 sym_hash++;
2961 *sym_hash = h;
2962
2963 /* Signal to caller to skip this symbol - we've handled it. */
2964 *namep = NULL;
2965 }
2966
2967 return TRUE;
2968 }
2969
2970 /* This hook function is called before the linker writes out a global
2971 symbol. For relocatable links, DataLabel symbols will be present in
2972 linker output. We cut off the special suffix on those symbols, so the
2973 right name appears in the output.
2974
2975 When linking and emitting relocations, there can appear global symbols
2976 that are not referenced by relocs, but rather only implicitly through
2977 DataLabel references, a relation that is not visible to the linker.
2978 Since no stripping of global symbols in done when doing such linking,
2979 we don't need to look up and make sure to emit the main symbol for each
2980 DataLabel symbol. */
2981
2982 static bfd_boolean
2983 sh64_elf64_link_output_symbol_hook (bfd *abfd ATTRIBUTE_UNUSED,
2984 struct bfd_link_info *info,
2985 const char *cname,
2986 Elf_Internal_Sym *sym,
2987 asection *input_sec ATTRIBUTE_UNUSED)
2988 {
2989 char *name = (char *) cname;
2990
2991 if (info->relocatable || info->emitrelocations)
2992 {
2993 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2994 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2995 }
2996
2997 return TRUE;
2998 }
2999
3000 /* Set bit 0 on the entry address; it always points to SHmedia code. This
3001 is mostly for symmetry with the 32-bit format, where code can be
3002 SHcompact and we need to make a distinction to make sure execution
3003 starts in the right ISA mode. It is also convenient for a loader,
3004 which would otherwise have to set this bit when loading a TR register
3005 before jumping to the program entry. */
3006
3007 static void
3008 sh64_elf64_final_write_processing (bfd *abfd,
3009 bfd_boolean linker ATTRIBUTE_UNUSED)
3010 {
3011 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
3012 numerically, but we currently lack the infrastructure to recognize
3013 that: The entry symbol, and info whether it is numeric or a symbol
3014 name is kept private in the linker. */
3015 if (elf_elfheader (abfd)->e_type == ET_EXEC)
3016 elf_elfheader (abfd)->e_entry |= 1;
3017 }
3018
3019 /* First entry in an absolute procedure linkage table look like this. */
3020
3021 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
3022 {
3023 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
3024 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
3025 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
3026 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
3027 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3028 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3029 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3030 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
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 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3037 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3038 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3039 };
3040
3041 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
3042 {
3043 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
3044 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
3045 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
3046 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
3047 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3048 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3049 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3050 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
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 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3057 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3058 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3059 };
3060
3061 /* Sebsequent entries in an absolute procedure linkage table look like
3062 this. */
3063
3064 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
3065 {
3066 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
3067 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
3068 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
3069 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
3070 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
3071 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3072 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3073 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3074 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
3075 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
3076 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
3077 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3078 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3079 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3080 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3081 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3082 };
3083
3084 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
3085 {
3086 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
3087 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3088 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3089 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3090 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
3091 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3092 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3093 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3094 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
3095 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
3096 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
3097 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3098 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3099 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3100 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3101 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3102 };
3103
3104 /* Entries in a PIC procedure linkage table look like this. */
3105
3106 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3107 {
3108 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
3109 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
3110 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
3111 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3112 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3113 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3114 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3115 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3116 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3117 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
3118 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3119 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3120 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3121 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3122 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3123 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3124 };
3125
3126 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3127 {
3128 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3129 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3130 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
3131 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3132 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3133 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3134 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3135 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3136 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3137 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
3138 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3139 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3140 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3141 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3142 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3143 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3144 };
3145
3146 static const bfd_byte *elf_sh64_plt0_entry;
3147 static const bfd_byte *elf_sh64_plt_entry;
3148 static const bfd_byte *elf_sh64_pic_plt_entry;
3149
3150 /* Create an entry in an sh ELF linker hash table. */
3151
3152 static struct bfd_hash_entry *
3153 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
3154 struct bfd_hash_table *table,
3155 const char *string)
3156 {
3157 struct elf_sh64_link_hash_entry *ret =
3158 (struct elf_sh64_link_hash_entry *) entry;
3159
3160 /* Allocate the structure if it has not already been allocated by a
3161 subclass. */
3162 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3163 ret = ((struct elf_sh64_link_hash_entry *)
3164 bfd_hash_allocate (table,
3165 sizeof (struct elf_sh64_link_hash_entry)));
3166 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3167 return (struct bfd_hash_entry *) ret;
3168
3169 /* Call the allocation method of the superclass. */
3170 ret = ((struct elf_sh64_link_hash_entry *)
3171 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3172 table, string));
3173 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3174 {
3175 ret->pcrel_relocs_copied = NULL;
3176 ret->datalabel_got_offset = (bfd_vma) -1;
3177 }
3178
3179 return (struct bfd_hash_entry *) ret;
3180 }
3181
3182 /* Create an sh64 ELF linker hash table. */
3183
3184 static struct bfd_link_hash_table *
3185 sh64_elf64_link_hash_table_create (bfd *abfd)
3186 {
3187 struct elf_sh64_link_hash_table *ret;
3188
3189 ret = ((struct elf_sh64_link_hash_table *)
3190 bfd_malloc (sizeof (struct elf_sh64_link_hash_table)));
3191 if (ret == (struct elf_sh64_link_hash_table *) NULL)
3192 return NULL;
3193
3194 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
3195 sh64_elf64_link_hash_newfunc))
3196 {
3197 free (ret);
3198 return NULL;
3199 }
3200
3201 return &ret->root.root;
3202 }
3203
3204 inline static void
3205 movi_shori_putval (bfd *output_bfd, unsigned long value, char *addr)
3206 {
3207 bfd_put_32 (output_bfd,
3208 bfd_get_32 (output_bfd, addr)
3209 | ((value >> 6) & 0x3fffc00),
3210 addr);
3211 bfd_put_32 (output_bfd,
3212 bfd_get_32 (output_bfd, addr + 4)
3213 | ((value << 10) & 0x3fffc00),
3214 addr + 4);
3215 }
3216
3217 inline static void
3218 movi_3shori_putval (bfd *output_bfd, bfd_vma value, char *addr)
3219 {
3220 bfd_put_32 (output_bfd,
3221 bfd_get_32 (output_bfd, addr)
3222 | ((value >> 38) & 0x3fffc00),
3223 addr);
3224 bfd_put_32 (output_bfd,
3225 bfd_get_32 (output_bfd, addr + 4)
3226 | ((value >> 22) & 0x3fffc00),
3227 addr + 4);
3228 bfd_put_32 (output_bfd,
3229 bfd_get_32 (output_bfd, addr + 8)
3230 | ((value >> 6) & 0x3fffc00),
3231 addr + 8);
3232 bfd_put_32 (output_bfd,
3233 bfd_get_32 (output_bfd, addr + 12)
3234 | ((value << 10) & 0x3fffc00),
3235 addr + 12);
3236 }
3237
3238 /* Create dynamic sections when linking against a dynamic object. */
3239
3240 static bfd_boolean
3241 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3242 {
3243 flagword flags, pltflags;
3244 register asection *s;
3245 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3246 int ptralign = 0;
3247
3248 switch (bed->s->arch_size)
3249 {
3250 case 32:
3251 ptralign = 2;
3252 break;
3253
3254 case 64:
3255 ptralign = 3;
3256 break;
3257
3258 default:
3259 bfd_set_error (bfd_error_bad_value);
3260 return FALSE;
3261 }
3262
3263 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3264 .rel[a].bss sections. */
3265
3266 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3267 | SEC_LINKER_CREATED);
3268
3269 pltflags = flags;
3270 pltflags |= SEC_CODE;
3271 if (bed->plt_not_loaded)
3272 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3273 if (bed->plt_readonly)
3274 pltflags |= SEC_READONLY;
3275
3276 s = bfd_make_section (abfd, ".plt");
3277 if (s == NULL
3278 || ! bfd_set_section_flags (abfd, s, pltflags)
3279 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3280 return FALSE;
3281
3282 if (bed->want_plt_sym)
3283 {
3284 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3285 .plt section. */
3286 struct elf_link_hash_entry *h;
3287 struct bfd_link_hash_entry *bh = NULL;
3288
3289 if (! (_bfd_generic_link_add_one_symbol
3290 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3291 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3292 return FALSE;
3293
3294 h = (struct elf_link_hash_entry *) bh;
3295 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
3296 h->type = STT_OBJECT;
3297
3298 if (info->shared
3299 && ! _bfd_elf_link_record_dynamic_symbol (info, h))
3300 return FALSE;
3301 }
3302
3303 s = bfd_make_section (abfd,
3304 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
3305 if (s == NULL
3306 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3307 || ! bfd_set_section_alignment (abfd, s, ptralign))
3308 return FALSE;
3309
3310 if (! _bfd_elf_create_got_section (abfd, info))
3311 return FALSE;
3312
3313 {
3314 const char *secname;
3315 char *relname;
3316 flagword secflags;
3317 asection *sec;
3318
3319 for (sec = abfd->sections; sec; sec = sec->next)
3320 {
3321 secflags = bfd_get_section_flags (abfd, sec);
3322 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
3323 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
3324 continue;
3325 secname = bfd_get_section_name (abfd, sec);
3326 relname = (char *) bfd_malloc (strlen (secname) + 6);
3327 strcpy (relname, ".rela");
3328 strcat (relname, secname);
3329 s = bfd_make_section (abfd, relname);
3330 if (s == NULL
3331 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3332 || ! bfd_set_section_alignment (abfd, s, ptralign))
3333 return FALSE;
3334 }
3335 }
3336
3337 if (bed->want_dynbss)
3338 {
3339 /* The .dynbss section is a place to put symbols which are defined
3340 by dynamic objects, are referenced by regular objects, and are
3341 not functions. We must allocate space for them in the process
3342 image and use a R_*_COPY reloc to tell the dynamic linker to
3343 initialize them at run time. The linker script puts the .dynbss
3344 section into the .bss section of the final image. */
3345 s = bfd_make_section (abfd, ".dynbss");
3346 if (s == NULL
3347 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
3348 return FALSE;
3349
3350 /* The .rel[a].bss section holds copy relocs. This section is not
3351 normally needed. We need to create it here, though, so that the
3352 linker will map it to an output section. We can't just create it
3353 only if we need it, because we will not know whether we need it
3354 until we have seen all the input files, and the first time the
3355 main linker code calls BFD after examining all the input files
3356 (size_dynamic_sections) the input sections have already been
3357 mapped to the output sections. If the section turns out not to
3358 be needed, we can discard it later. We will never need this
3359 section when generating a shared object, since they do not use
3360 copy relocs. */
3361 if (! info->shared)
3362 {
3363 s = bfd_make_section (abfd,
3364 (bed->default_use_rela_p
3365 ? ".rela.bss" : ".rel.bss"));
3366 if (s == NULL
3367 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3368 || ! bfd_set_section_alignment (abfd, s, ptralign))
3369 return FALSE;
3370 }
3371 }
3372
3373 return TRUE;
3374 }
3375 \f
3376 /* Adjust a symbol defined by a dynamic object and referenced by a
3377 regular object. The current definition is in some section of the
3378 dynamic object, but we're not including those sections. We have to
3379 change the definition to something the rest of the link can
3380 understand. */
3381
3382 static bfd_boolean
3383 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3384 struct elf_link_hash_entry *h)
3385 {
3386 bfd *dynobj;
3387 asection *s;
3388 unsigned int power_of_two;
3389
3390 dynobj = elf_hash_table (info)->dynobj;
3391
3392 /* Make sure we know what is going on here. */
3393 BFD_ASSERT (dynobj != NULL
3394 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
3395 || h->weakdef != NULL
3396 || ((h->elf_link_hash_flags
3397 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
3398 && (h->elf_link_hash_flags
3399 & ELF_LINK_HASH_REF_REGULAR) != 0
3400 && (h->elf_link_hash_flags
3401 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
3402
3403 /* If this is a function, put it in the procedure linkage table. We
3404 will fill in the contents of the procedure linkage table later,
3405 when we know the address of the .got section. */
3406 if (h->type == STT_FUNC
3407 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
3408 {
3409 if (! info->shared
3410 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
3411 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
3412 {
3413 /* This case can occur if we saw a PLT reloc in an input
3414 file, but the symbol was never referred to by a dynamic
3415 object. In such a case, we don't actually need to build
3416 a procedure linkage table, and we can just do a REL64
3417 reloc instead. */
3418 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
3419 return TRUE;
3420 }
3421
3422 /* Make sure this symbol is output as a dynamic symbol. */
3423 if (h->dynindx == -1)
3424 {
3425 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
3426 return FALSE;
3427 }
3428
3429 s = bfd_get_section_by_name (dynobj, ".plt");
3430 BFD_ASSERT (s != NULL);
3431
3432 /* If this is the first .plt entry, make room for the special
3433 first entry. */
3434 if (s->_raw_size == 0)
3435 s->_raw_size += PLT_ENTRY_SIZE;
3436
3437 /* If this symbol is not defined in a regular file, and we are
3438 not generating a shared library, then set the symbol to this
3439 location in the .plt. This is required to make function
3440 pointers compare as equal between the normal executable and
3441 the shared library. */
3442 if (! info->shared
3443 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3444 {
3445 h->root.u.def.section = s;
3446 h->root.u.def.value = s->_raw_size;
3447 }
3448
3449 h->plt.offset = s->_raw_size;
3450
3451 /* Make room for this entry. */
3452 s->_raw_size += elf_sh64_sizeof_plt (info);
3453
3454 /* We also need to make an entry in the .got.plt section, which
3455 will be placed in the .got section by the linker script. */
3456
3457 s = bfd_get_section_by_name (dynobj, ".got.plt");
3458 BFD_ASSERT (s != NULL);
3459 s->_raw_size += 8;
3460
3461 /* We also need to make an entry in the .rela.plt section. */
3462
3463 s = bfd_get_section_by_name (dynobj, ".rela.plt");
3464 BFD_ASSERT (s != NULL);
3465 s->_raw_size += sizeof (Elf64_External_Rela);
3466
3467 return TRUE;
3468 }
3469
3470 /* If this is a weak symbol, and there is a real definition, the
3471 processor independent code will have arranged for us to see the
3472 real definition first, and we can just use the same value. */
3473 if (h->weakdef != NULL)
3474 {
3475 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
3476 || h->weakdef->root.type == bfd_link_hash_defweak);
3477 h->root.u.def.section = h->weakdef->root.u.def.section;
3478 h->root.u.def.value = h->weakdef->root.u.def.value;
3479 return TRUE;
3480 }
3481
3482 /* This is a reference to a symbol defined by a dynamic object which
3483 is not a function. */
3484
3485 /* If we are creating a shared library, we must presume that the
3486 only references to the symbol are via the global offset table.
3487 For such cases we need not do anything here; the relocations will
3488 be handled correctly by relocate_section. */
3489 if (info->shared)
3490 return TRUE;
3491
3492 /* If there are no references to this symbol that do not use the
3493 GOT, we don't need to generate a copy reloc. */
3494 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
3495 return TRUE;
3496
3497 /* We must allocate the symbol in our .dynbss section, which will
3498 become part of the .bss section of the executable. There will be
3499 an entry for this symbol in the .dynsym section. The dynamic
3500 object will contain position independent code, so all references
3501 from the dynamic object to this symbol will go through the global
3502 offset table. The dynamic linker will use the .dynsym entry to
3503 determine the address it must put in the global offset table, so
3504 both the dynamic object and the regular object will refer to the
3505 same memory location for the variable. */
3506
3507 s = bfd_get_section_by_name (dynobj, ".dynbss");
3508 BFD_ASSERT (s != NULL);
3509
3510 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3511 copy the initial value out of the dynamic object and into the
3512 runtime process image. We need to remember the offset into the
3513 .rela.bss section we are going to use. */
3514 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3515 {
3516 asection *srel;
3517
3518 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
3519 BFD_ASSERT (srel != NULL);
3520 srel->_raw_size += sizeof (Elf64_External_Rela);
3521 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
3522 }
3523
3524 /* We need to figure out the alignment required for this symbol. I
3525 have no idea how ELF linkers handle this. */
3526 power_of_two = bfd_log2 (h->size);
3527 if (power_of_two > 3)
3528 power_of_two = 3;
3529
3530 /* Apply the required alignment. */
3531 s->_raw_size = BFD_ALIGN (s->_raw_size,
3532 (bfd_size_type) (1 << power_of_two));
3533 if (power_of_two > bfd_get_section_alignment (dynobj, s))
3534 {
3535 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
3536 return FALSE;
3537 }
3538
3539 /* Define the symbol as being at this point in the section. */
3540 h->root.u.def.section = s;
3541 h->root.u.def.value = s->_raw_size;
3542
3543 /* Increment the section size to make room for the symbol. */
3544 s->_raw_size += h->size;
3545
3546 return TRUE;
3547 }
3548
3549 /* This function is called via sh_elf_link_hash_traverse if we are
3550 creating a shared object with -Bsymbolic. It discards the space
3551 allocated to copy PC relative relocs against symbols which are
3552 defined in regular objects. We allocated space for them in the
3553 check_relocs routine, but we won't fill them in in the
3554 relocate_section routine. */
3555
3556 static bfd_boolean
3557 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3558 void *ignore ATTRIBUTE_UNUSED)
3559 {
3560 struct elf_sh64_pcrel_relocs_copied *s;
3561
3562 if (h->root.root.type == bfd_link_hash_warning)
3563 h = (struct elf_sh64_link_hash_entry *) h->root.root.u.i.link;
3564
3565 /* We only discard relocs for symbols defined in a regular object. */
3566 if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3567 return TRUE;
3568
3569 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3570 s->section->_raw_size -= s->count * sizeof (Elf64_External_Rela);
3571
3572 return TRUE;
3573 }
3574
3575 /* Set the sizes of the dynamic sections. */
3576
3577 static bfd_boolean
3578 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3579 struct bfd_link_info *info)
3580 {
3581 bfd *dynobj;
3582 asection *s;
3583 bfd_boolean plt;
3584 bfd_boolean relocs;
3585 bfd_boolean reltext;
3586
3587 dynobj = elf_hash_table (info)->dynobj;
3588 BFD_ASSERT (dynobj != NULL);
3589
3590 if (elf_hash_table (info)->dynamic_sections_created)
3591 {
3592 /* Set the contents of the .interp section to the interpreter. */
3593 if (info->executable)
3594 {
3595 s = bfd_get_section_by_name (dynobj, ".interp");
3596 BFD_ASSERT (s != NULL);
3597 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
3598 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3599 }
3600 }
3601 else
3602 {
3603 /* We may have created entries in the .rela.got section.
3604 However, if we are not creating the dynamic sections, we will
3605 not actually use these entries. Reset the size of .rela.got,
3606 which will cause it to get stripped from the output file
3607 below. */
3608 s = bfd_get_section_by_name (dynobj, ".rela.got");
3609 if (s != NULL)
3610 s->_raw_size = 0;
3611 }
3612
3613 /* If this is a -Bsymbolic shared link, then we need to discard all
3614 PC relative relocs against symbols defined in a regular object.
3615 We allocated space for them in the check_relocs routine, but we
3616 will not fill them in in the relocate_section routine. */
3617 if (info->shared && info->symbolic)
3618 sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info),
3619 sh64_elf64_discard_copies, NULL);
3620
3621 /* The check_relocs and adjust_dynamic_symbol entry points have
3622 determined the sizes of the various dynamic sections. Allocate
3623 memory for them. */
3624 plt = FALSE;
3625 relocs = FALSE;
3626 reltext = FALSE;
3627 for (s = dynobj->sections; s != NULL; s = s->next)
3628 {
3629 const char *name;
3630 bfd_boolean strip;
3631
3632 if ((s->flags & SEC_LINKER_CREATED) == 0)
3633 continue;
3634
3635 /* It's OK to base decisions on the section name, because none
3636 of the dynobj section names depend upon the input files. */
3637 name = bfd_get_section_name (dynobj, s);
3638
3639 strip = FALSE;
3640
3641 if (strcmp (name, ".plt") == 0)
3642 {
3643 if (s->_raw_size == 0)
3644 {
3645 /* Strip this section if we don't need it; see the
3646 comment below. */
3647 strip = TRUE;
3648 }
3649 else
3650 {
3651 /* Remember whether there is a PLT. */
3652 plt = TRUE;
3653 }
3654 }
3655 else if (strncmp (name, ".rela", 5) == 0)
3656 {
3657 if (s->_raw_size == 0)
3658 {
3659 /* If we don't need this section, strip it from the
3660 output file. This is mostly to handle .rela.bss and
3661 .rela.plt. We must create both sections in
3662 create_dynamic_sections, because they must be created
3663 before the linker maps input sections to output
3664 sections. The linker does that before
3665 adjust_dynamic_symbol is called, and it is that
3666 function which decides whether anything needs to go
3667 into these sections. */
3668 strip = TRUE;
3669 }
3670 else
3671 {
3672 asection *target;
3673
3674 /* Remember whether there are any reloc sections other
3675 than .rela.plt. */
3676 if (strcmp (name, ".rela.plt") != 0)
3677 {
3678 const char *outname;
3679
3680 relocs = TRUE;
3681
3682 /* If this relocation section applies to a read only
3683 section, then we probably need a DT_TEXTREL
3684 entry. The entries in the .rela.plt section
3685 really apply to the .got section, which we
3686 created ourselves and so know is not readonly. */
3687 outname = bfd_get_section_name (output_bfd,
3688 s->output_section);
3689 target = bfd_get_section_by_name (output_bfd, outname + 5);
3690 if (target != NULL
3691 && (target->flags & SEC_READONLY) != 0
3692 && (target->flags & SEC_ALLOC) != 0)
3693 reltext = TRUE;
3694 }
3695
3696 /* We use the reloc_count field as a counter if we need
3697 to copy relocs into the output file. */
3698 s->reloc_count = 0;
3699 }
3700 }
3701 else if (strncmp (name, ".got", 4) != 0)
3702 {
3703 /* It's not one of our sections, so don't allocate space. */
3704 continue;
3705 }
3706
3707 if (strip)
3708 {
3709 _bfd_strip_section_from_output (info, s);
3710 continue;
3711 }
3712
3713 /* Allocate memory for the section contents. */
3714 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
3715 if (s->contents == NULL && s->_raw_size != 0)
3716 return FALSE;
3717 }
3718
3719 if (elf_hash_table (info)->dynamic_sections_created)
3720 {
3721 /* Add some entries to the .dynamic section. We fill in the
3722 values later, in sh64_elf64_finish_dynamic_sections, but we
3723 must add the entries now so that we get the correct size for
3724 the .dynamic section. The DT_DEBUG entry is filled in by the
3725 dynamic linker and used by the debugger. */
3726 if (info->executable)
3727 {
3728 if (! bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0))
3729 return FALSE;
3730 }
3731
3732 if (plt)
3733 {
3734 if (! bfd_elf64_add_dynamic_entry (info, DT_PLTGOT, 0)
3735 || ! bfd_elf64_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3736 || ! bfd_elf64_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3737 || ! bfd_elf64_add_dynamic_entry (info, DT_JMPREL, 0))
3738 return FALSE;
3739 }
3740
3741 if (relocs)
3742 {
3743 if (! bfd_elf64_add_dynamic_entry (info, DT_RELA, 0)
3744 || ! bfd_elf64_add_dynamic_entry (info, DT_RELASZ, 0)
3745 || ! bfd_elf64_add_dynamic_entry (info, DT_RELAENT,
3746 sizeof (Elf64_External_Rela)))
3747 return FALSE;
3748 }
3749
3750 if (reltext)
3751 {
3752 if (! bfd_elf64_add_dynamic_entry (info, DT_TEXTREL, 0))
3753 return FALSE;
3754 }
3755 }
3756
3757 return TRUE;
3758 }
3759
3760 /* Finish up dynamic symbol handling. We set the contents of various
3761 dynamic sections here. */
3762
3763 static bfd_boolean
3764 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3765 struct bfd_link_info *info,
3766 struct elf_link_hash_entry *h,
3767 Elf_Internal_Sym *sym)
3768 {
3769 bfd *dynobj;
3770
3771 dynobj = elf_hash_table (info)->dynobj;
3772
3773 if (h->plt.offset != (bfd_vma) -1)
3774 {
3775 asection *splt;
3776 asection *sgot;
3777 asection *srel;
3778
3779 bfd_vma plt_index;
3780 bfd_vma got_offset;
3781 Elf_Internal_Rela rel;
3782 bfd_byte *loc;
3783
3784 /* This symbol has an entry in the procedure linkage table. Set
3785 it up. */
3786
3787 BFD_ASSERT (h->dynindx != -1);
3788
3789 splt = bfd_get_section_by_name (dynobj, ".plt");
3790 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3791 srel = bfd_get_section_by_name (dynobj, ".rela.plt");
3792 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3793
3794 /* Get the index in the procedure linkage table which
3795 corresponds to this symbol. This is the index of this symbol
3796 in all the symbols for which we are making plt entries. The
3797 first entry in the procedure linkage table is reserved. */
3798 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3799
3800 /* Get the offset into the .got table of the entry that
3801 corresponds to this function. Each .got entry is 8 bytes.
3802 The first three are reserved. */
3803 got_offset = (plt_index + 3) * 8;
3804
3805 if (info->shared)
3806 got_offset -= GOT_BIAS;
3807
3808 /* Fill in the entry in the procedure linkage table. */
3809 if (! info->shared)
3810 {
3811 if (elf_sh64_plt_entry == NULL)
3812 {
3813 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3814 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3815 }
3816 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3817 elf_sh64_sizeof_plt (info));
3818 movi_3shori_putval (output_bfd,
3819 (sgot->output_section->vma
3820 + sgot->output_offset
3821 + got_offset),
3822 (splt->contents + h->plt.offset
3823 + elf_sh64_plt_symbol_offset (info)));
3824
3825 /* Set bottom bit because its for a branch to SHmedia */
3826 movi_shori_putval (output_bfd,
3827 -(h->plt.offset
3828 + elf_sh64_plt_plt0_offset (info) + 8)
3829 | 1,
3830 (splt->contents + h->plt.offset
3831 + elf_sh64_plt_plt0_offset (info)));
3832 }
3833 else
3834 {
3835 if (elf_sh64_pic_plt_entry == NULL)
3836 {
3837 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3838 elf_sh64_pic_plt_entry_be :
3839 elf_sh64_pic_plt_entry_le);
3840 }
3841 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3842 elf_sh64_sizeof_plt (info));
3843 movi_shori_putval (output_bfd, got_offset,
3844 (splt->contents + h->plt.offset
3845 + elf_sh64_plt_symbol_offset (info)));
3846 }
3847
3848 if (info->shared)
3849 got_offset += GOT_BIAS;
3850
3851 movi_shori_putval (output_bfd,
3852 plt_index * sizeof (Elf64_External_Rela),
3853 (splt->contents + h->plt.offset
3854 + elf_sh64_plt_reloc_offset (info)));
3855
3856 /* Fill in the entry in the global offset table. */
3857 bfd_put_64 (output_bfd,
3858 (splt->output_section->vma
3859 + splt->output_offset
3860 + h->plt.offset
3861 + elf_sh64_plt_temp_offset (info)),
3862 sgot->contents + got_offset);
3863
3864 /* Fill in the entry in the .rela.plt section. */
3865 rel.r_offset = (sgot->output_section->vma
3866 + sgot->output_offset
3867 + got_offset);
3868 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3869 rel.r_addend = 0;
3870 rel.r_addend = GOT_BIAS;
3871 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3872 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3873
3874 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3875 {
3876 /* Mark the symbol as undefined, rather than as defined in
3877 the .plt section. Leave the value alone. */
3878 sym->st_shndx = SHN_UNDEF;
3879 }
3880 }
3881
3882 if (h->got.offset != (bfd_vma) -1)
3883 {
3884 asection *sgot;
3885 asection *srel;
3886 Elf_Internal_Rela rel;
3887 bfd_byte *loc;
3888
3889 /* This symbol has an entry in the global offset table. Set it
3890 up. */
3891
3892 sgot = bfd_get_section_by_name (dynobj, ".got");
3893 srel = bfd_get_section_by_name (dynobj, ".rela.got");
3894 BFD_ASSERT (sgot != NULL && srel != NULL);
3895
3896 rel.r_offset = (sgot->output_section->vma
3897 + sgot->output_offset
3898 + (h->got.offset &~ 1));
3899
3900 /* If this is a -Bsymbolic link, and the symbol is defined
3901 locally, we just want to emit a RELATIVE reloc. Likewise if
3902 the symbol was forced to be local because of a version file.
3903 The entry in the global offset table will already have been
3904 initialized in the relocate_section function. */
3905 if (info->shared
3906 && (info->symbolic || h->dynindx == -1)
3907 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
3908 {
3909 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3910 rel.r_addend = (h->root.u.def.value
3911 + h->root.u.def.section->output_section->vma
3912 + h->root.u.def.section->output_offset);
3913 }
3914 else
3915 {
3916 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3917 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3918 rel.r_addend = 0;
3919 }
3920
3921 loc = srel->contents;
3922 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3923 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3924 }
3925
3926 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
3927 {
3928 asection *s;
3929 Elf_Internal_Rela rel;
3930 bfd_byte *loc;
3931
3932 /* This symbol needs a copy reloc. Set it up. */
3933
3934 BFD_ASSERT (h->dynindx != -1
3935 && (h->root.type == bfd_link_hash_defined
3936 || h->root.type == bfd_link_hash_defweak));
3937
3938 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3939 ".rela.bss");
3940 BFD_ASSERT (s != NULL);
3941
3942 rel.r_offset = (h->root.u.def.value
3943 + h->root.u.def.section->output_section->vma
3944 + h->root.u.def.section->output_offset);
3945 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3946 rel.r_addend = 0;
3947 loc = s->contents;
3948 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3949 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3950 }
3951
3952 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3953 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3954 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3955 sym->st_shndx = SHN_ABS;
3956
3957 return TRUE;
3958 }
3959
3960 /* Finish up the dynamic sections. */
3961
3962 static bfd_boolean
3963 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3964 struct bfd_link_info *info)
3965 {
3966 bfd *dynobj;
3967 asection *sgot;
3968 asection *sdyn;
3969
3970 dynobj = elf_hash_table (info)->dynobj;
3971
3972 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3973 BFD_ASSERT (sgot != NULL);
3974 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3975
3976 if (elf_hash_table (info)->dynamic_sections_created)
3977 {
3978 asection *splt;
3979 Elf64_External_Dyn *dyncon, *dynconend;
3980
3981 BFD_ASSERT (sdyn != NULL);
3982
3983 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3984 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
3985 for (; dyncon < dynconend; dyncon++)
3986 {
3987 Elf_Internal_Dyn dyn;
3988 const char *name;
3989 asection *s;
3990 struct elf_link_hash_entry *h;
3991
3992 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3993
3994 switch (dyn.d_tag)
3995 {
3996 default:
3997 break;
3998
3999 case DT_INIT:
4000 name = info->init_function;
4001 goto get_sym;
4002
4003 case DT_FINI:
4004 name = info->fini_function;
4005 get_sym:
4006 if (dyn.d_un.d_val != 0)
4007 {
4008 h = elf_link_hash_lookup (elf_hash_table (info), name,
4009 FALSE, FALSE, TRUE);
4010 if (h != NULL && (h->other & STO_SH5_ISA32))
4011 {
4012 dyn.d_un.d_val |= 1;
4013 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4014 }
4015 }
4016 break;
4017
4018 case DT_PLTGOT:
4019 name = ".got";
4020 goto get_vma;
4021
4022 case DT_JMPREL:
4023 name = ".rela.plt";
4024 get_vma:
4025 s = bfd_get_section_by_name (output_bfd, name);
4026 BFD_ASSERT (s != NULL);
4027 dyn.d_un.d_ptr = s->vma;
4028 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4029 break;
4030
4031 case DT_PLTRELSZ:
4032 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
4033 BFD_ASSERT (s != NULL);
4034 if (s->_cooked_size != 0)
4035 dyn.d_un.d_val = s->_cooked_size;
4036 else
4037 dyn.d_un.d_val = s->_raw_size;
4038 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4039 break;
4040
4041 case DT_RELASZ:
4042 /* My reading of the SVR4 ABI indicates that the
4043 procedure linkage table relocs (DT_JMPREL) should be
4044 included in the overall relocs (DT_RELA). This is
4045 what Solaris does. However, UnixWare can not handle
4046 that case. Therefore, we override the DT_RELASZ entry
4047 here to make it not include the JMPREL relocs. Since
4048 the linker script arranges for .rela.plt to follow all
4049 other relocation sections, we don't have to worry
4050 about changing the DT_RELA entry. */
4051 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
4052 if (s != NULL)
4053 {
4054 if (s->_cooked_size != 0)
4055 dyn.d_un.d_val -= s->_cooked_size;
4056 else
4057 dyn.d_un.d_val -= s->_raw_size;
4058 }
4059 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4060 break;
4061 }
4062 }
4063
4064 /* Fill in the first entry in the procedure linkage table. */
4065 splt = bfd_get_section_by_name (dynobj, ".plt");
4066 if (splt && splt->_raw_size > 0)
4067 {
4068 if (info->shared)
4069 {
4070 if (elf_sh64_pic_plt_entry == NULL)
4071 {
4072 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
4073 elf_sh64_pic_plt_entry_be :
4074 elf_sh64_pic_plt_entry_le);
4075 }
4076 memcpy (splt->contents, elf_sh64_pic_plt_entry,
4077 elf_sh64_sizeof_plt (info));
4078 }
4079 else
4080 {
4081 if (elf_sh64_plt0_entry == NULL)
4082 {
4083 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
4084 elf_sh64_plt0_entry_be :
4085 elf_sh64_plt0_entry_le);
4086 }
4087 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
4088 movi_3shori_putval (output_bfd,
4089 sgot->output_section->vma
4090 + sgot->output_offset,
4091 splt->contents
4092 + elf_sh64_plt0_gotplt_offset (info));
4093 }
4094
4095 /* UnixWare sets the entsize of .plt to 8, although that doesn't
4096 really seem like the right value. */
4097 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
4098 }
4099 }
4100
4101 /* Fill in the first three entries in the global offset table. */
4102 if (sgot->_raw_size > 0)
4103 {
4104 if (sdyn == NULL)
4105 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
4106 else
4107 bfd_put_64 (output_bfd,
4108 sdyn->output_section->vma + sdyn->output_offset,
4109 sgot->contents);
4110 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
4111 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
4112 }
4113
4114 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
4115
4116 return TRUE;
4117 }
4118
4119 static struct bfd_elf_special_section const sh64_elf64_special_sections[]=
4120 {
4121 { ".cranges", 0, NULL, 0,
4122 SHT_PROGBITS, 0 },
4123 { NULL, 0, NULL, 0,
4124 0, 0 }
4125 };
4126
4127 #define TARGET_BIG_SYM bfd_elf64_sh64_vec
4128 #define TARGET_BIG_NAME "elf64-sh64"
4129 #define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec
4130 #define TARGET_LITTLE_NAME "elf64-sh64l"
4131 #define ELF_ARCH bfd_arch_sh
4132 #define ELF_MACHINE_CODE EM_SH
4133 #define ELF_MAXPAGESIZE 128
4134
4135 #define elf_symbol_leading_char '_'
4136
4137 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
4138 #define elf_info_to_howto sh_elf64_info_to_howto
4139
4140 /* Note: there's no relaxation at present. */
4141
4142 #define elf_backend_relocate_section sh_elf64_relocate_section
4143 #define bfd_elf64_bfd_get_relocated_section_contents \
4144 sh_elf64_get_relocated_section_contents
4145 #define elf_backend_object_p sh_elf64_set_mach_from_flags
4146 #define bfd_elf64_bfd_set_private_flags \
4147 sh_elf64_set_private_flags
4148 #define bfd_elf64_bfd_copy_private_bfd_data \
4149 sh_elf64_copy_private_data
4150 #define bfd_elf64_bfd_merge_private_bfd_data \
4151 sh_elf64_merge_private_data
4152 #define elf_backend_fake_sections sh64_elf64_fake_sections
4153
4154 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
4155 #define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook
4156 #define elf_backend_check_relocs sh_elf64_check_relocs
4157
4158 #define elf_backend_can_gc_sections 1
4159
4160 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
4161
4162 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
4163
4164 #define elf_backend_link_output_symbol_hook \
4165 sh64_elf64_link_output_symbol_hook
4166
4167 #define elf_backend_final_write_processing \
4168 sh64_elf64_final_write_processing
4169
4170 #define elf_backend_create_dynamic_sections \
4171 sh64_elf64_create_dynamic_sections
4172 #define bfd_elf64_bfd_link_hash_table_create \
4173 sh64_elf64_link_hash_table_create
4174 #define elf_backend_adjust_dynamic_symbol \
4175 sh64_elf64_adjust_dynamic_symbol
4176 #define elf_backend_size_dynamic_sections \
4177 sh64_elf64_size_dynamic_sections
4178 #define elf_backend_finish_dynamic_symbol \
4179 sh64_elf64_finish_dynamic_symbol
4180 #define elf_backend_finish_dynamic_sections \
4181 sh64_elf64_finish_dynamic_sections
4182 #define elf_backend_special_sections sh64_elf64_special_sections
4183
4184 #define elf_backend_want_got_plt 1
4185 #define elf_backend_plt_readonly 1
4186 #define elf_backend_want_plt_sym 0
4187 #define elf_backend_got_header_size 24
4188 #define elf_backend_plt_header_size PLT_ENTRY_SIZE
4189
4190 #include "elf64-target.h"
4191
4192 /* NetBSD support. */
4193 #undef TARGET_BIG_SYM
4194 #define TARGET_BIG_SYM bfd_elf64_sh64nbsd_vec
4195 #undef TARGET_BIG_NAME
4196 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
4197 #undef TARGET_LITTLE_SYM
4198 #define TARGET_LITTLE_SYM bfd_elf64_sh64lnbsd_vec
4199 #undef TARGET_LITTLE_NAME
4200 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
4201 #undef ELF_MAXPAGESIZE
4202 #define ELF_MAXPAGESIZE 0x10000
4203 #undef elf_symbol_leading_char
4204 #define elf_symbol_leading_char 0
4205
4206 #define elf64_bed elf64_sh64_nbsd_bed
4207
4208 #include "elf64-target.h"
4209
4210 /* Linux support. */
4211 #undef TARGET_BIG_SYM
4212 #define TARGET_BIG_SYM bfd_elf64_sh64blin_vec
4213 #undef TARGET_BIG_NAME
4214 #define TARGET_BIG_NAME "elf64-sh64big-linux"
4215 #undef TARGET_LITTLE_SYM
4216 #define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec
4217 #undef TARGET_LITTLE_NAME
4218 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
4219
4220 #define INCLUDED_TARGET_FILE
4221 #include "elf64-target.h"
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