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[deliverable/binutils-gdb.git] / bfd / elf64-sh64.c
1 /* SuperH SH64-specific support for 64-bit ELF
2 Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20 #define SH64_ELF64
21
22 #include "bfd.h"
23 #include "sysdep.h"
24 #include "bfdlink.h"
25 #include "libbfd.h"
26 #include "elf-bfd.h"
27 #include "elf/sh.h"
28
29 /* Add a suffix for datalabel indirection symbols. It must not match any
30 other symbols; user symbols with or without version or other
31 decoration. It must only be used internally and not emitted by any
32 means. */
33 #define DATALABEL_SUFFIX " DL"
34
35 #define GOT_BIAS (-((long)-32768))
36
37 #define PLT_ENTRY_SIZE 64
38
39 /* Return size of a PLT entry. */
40 #define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE
41
42 /* Return offset of the PLT0 address in an absolute PLT entry. */
43 #define elf_sh64_plt_plt0_offset(info) 32
44
45 /* Return offset of the linker in PLT0 entry. */
46 #define elf_sh64_plt0_gotplt_offset(info) 0
47
48 /* Return offset of the trampoline in PLT entry */
49 #define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
50
51 /* Return offset of the symbol in PLT entry. */
52 #define elf_sh64_plt_symbol_offset(info) 0
53
54 /* Return offset of the relocation in PLT entry. */
55 #define elf_sh64_plt_reloc_offset(info) (info->shared ? 52 : 44)
56
57 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
58
59 /* The sh linker needs to keep track of the number of relocs that it
60 decides to copy in check_relocs for each symbol. This is so that
61 it can discard PC relative relocs if it doesn't need them when
62 linking with -Bsymbolic. We store the information in a field
63 extending the regular ELF linker hash table. */
64
65 /* This structure keeps track of the number of PC relative relocs we
66 have copied for a given symbol. */
67
68 struct elf_sh64_pcrel_relocs_copied
69 {
70 /* Next section. */
71 struct elf_sh64_pcrel_relocs_copied *next;
72 /* A section in dynobj. */
73 asection *section;
74 /* Number of relocs copied in this section. */
75 bfd_size_type count;
76 };
77
78 /* sh ELF linker hash entry. */
79
80 struct elf_sh64_link_hash_entry
81 {
82 struct elf_link_hash_entry root;
83
84 bfd_vma datalabel_got_offset;
85
86 /* Number of PC relative relocs copied for this symbol. */
87 struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied;
88 };
89
90 /* sh ELF linker hash table. */
91
92 struct elf_sh64_link_hash_table
93 {
94 struct elf_link_hash_table root;
95 };
96
97 /* Traverse an sh ELF linker hash table. */
98
99 #define sh64_elf64_link_hash_traverse(table, func, info) \
100 (elf_link_hash_traverse \
101 (&(table)->root, \
102 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
103 (info)))
104
105 /* Get the sh ELF linker hash table from a link_info structure. */
106
107 #define sh64_elf64_hash_table(p) \
108 ((struct elf_sh64_link_hash_table *) ((p)->hash))
109
110 static bfd_boolean sh_elf64_copy_private_data
111 (bfd *, bfd *);
112 static bfd_boolean sh_elf64_copy_private_data_internal
113 (bfd *, bfd *);
114 static bfd_boolean sh_elf64_merge_private_data
115 (bfd *, bfd *);
116 static bfd_reloc_status_type sh_elf64_ignore_reloc
117 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
118 static bfd_reloc_status_type sh_elf64_reloc
119 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
120 static reloc_howto_type *sh_elf64_reloc_type_lookup
121 (bfd *, bfd_reloc_code_real_type);
122 static void sh_elf64_info_to_howto
123 (bfd *, arelent *, Elf_Internal_Rela *);
124 static bfd_boolean sh_elf64_relocate_section
125 (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
126 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
127 static bfd_byte *sh_elf64_get_relocated_section_contents
128 (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
129 bfd_boolean, asymbol **);
130 static bfd_boolean sh_elf64_set_mach_from_flags
131 (bfd *);
132 static bfd_boolean sh_elf64_set_private_flags
133 (bfd *, flagword);
134 static asection *sh_elf64_gc_mark_hook
135 (asection *, struct bfd_link_info *, Elf_Internal_Rela *,
136 struct elf_link_hash_entry *, Elf_Internal_Sym *);
137 static bfd_boolean sh_elf64_gc_sweep_hook
138 (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
139 static bfd_boolean sh_elf64_check_relocs
140 (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
141 static int sh64_elf64_get_symbol_type
142 (Elf_Internal_Sym *, int);
143 static bfd_boolean sh64_elf64_add_symbol_hook
144 (bfd *, struct bfd_link_info *, Elf_Internal_Sym *, const char **,
145 flagword *, asection **, bfd_vma *);
146 static bfd_boolean sh64_elf64_link_output_symbol_hook
147 (struct bfd_link_info *, const char *, Elf_Internal_Sym *, asection *,
148 struct elf_link_hash_entry *);
149 static bfd_boolean sh64_elf64_fake_sections
150 (bfd *, Elf_Internal_Shdr *, asection *);
151 static void sh64_elf64_final_write_processing
152 (bfd *, bfd_boolean);
153 static struct bfd_hash_entry *sh64_elf64_link_hash_newfunc
154 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
155 static struct bfd_link_hash_table *sh64_elf64_link_hash_table_create
156 (bfd *);
157 inline static void movi_shori_putval
158 (bfd *, unsigned long, char *);
159 inline static void movi_3shori_putval
160 (bfd *, bfd_vma, char *);
161 static bfd_boolean sh64_elf64_create_dynamic_sections
162 (bfd *, struct bfd_link_info *);
163 static bfd_boolean sh64_elf64_adjust_dynamic_symbol
164 (struct bfd_link_info *info, struct elf_link_hash_entry *);
165 static bfd_boolean sh64_elf64_discard_copies
166 (struct elf_sh64_link_hash_entry *, void *);
167 static bfd_boolean sh64_elf64_size_dynamic_sections
168 (bfd *, struct bfd_link_info *);
169 static bfd_boolean sh64_elf64_finish_dynamic_symbol
170 (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
171 Elf_Internal_Sym *);
172 static bfd_boolean sh64_elf64_finish_dynamic_sections
173 (bfd *, struct bfd_link_info *);
174
175 static reloc_howto_type sh_elf64_howto_table[] = {
176 /* No relocation. */
177 HOWTO (R_SH_NONE, /* type */
178 0, /* rightshift */
179 0, /* size (0 = byte, 1 = short, 2 = long) */
180 0, /* bitsize */
181 FALSE, /* pc_relative */
182 0, /* bitpos */
183 complain_overflow_dont, /* complain_on_overflow */
184 sh_elf64_ignore_reloc, /* special_function */
185 "R_SH_NONE", /* name */
186 FALSE, /* partial_inplace */
187 0, /* src_mask */
188 0, /* dst_mask */
189 FALSE), /* pcrel_offset */
190
191 /* 32 bit absolute relocation. Setting partial_inplace to TRUE and
192 src_mask to a non-zero value is similar to the COFF toolchain. */
193 HOWTO (R_SH_DIR32, /* type */
194 0, /* rightshift */
195 2, /* size (0 = byte, 1 = short, 2 = long) */
196 32, /* bitsize */
197 FALSE, /* pc_relative */
198 0, /* bitpos */
199 complain_overflow_bitfield, /* complain_on_overflow */
200 sh_elf64_reloc, /* special_function */
201 "R_SH_DIR32", /* name */
202 TRUE, /* partial_inplace */
203 0xffffffff, /* src_mask */
204 0xffffffff, /* dst_mask */
205 FALSE), /* pcrel_offset */
206
207 /* 32 bit PC relative relocation. */
208 HOWTO (R_SH_REL32, /* type */
209 0, /* rightshift */
210 2, /* size (0 = byte, 1 = short, 2 = long) */
211 32, /* bitsize */
212 TRUE, /* pc_relative */
213 0, /* bitpos */
214 complain_overflow_signed, /* complain_on_overflow */
215 sh_elf64_ignore_reloc, /* special_function */
216 "R_SH_REL32", /* name */
217 FALSE, /* partial_inplace */
218 0, /* src_mask */
219 0xffffffff, /* dst_mask */
220 TRUE), /* pcrel_offset */
221
222 /* For 32-bit sh, this is R_SH_DIR8WPN. */
223 EMPTY_HOWTO (3),
224
225 /* For 32-bit sh, this is R_SH_IND12W. */
226 EMPTY_HOWTO (4),
227
228 /* For 32-bit sh, this is R_SH_DIR8WPL. */
229 EMPTY_HOWTO (5),
230
231 /* For 32-bit sh, this is R_SH_DIR8WPZ. */
232 EMPTY_HOWTO (6),
233
234 /* For 32-bit sh, this is R_SH_DIR8BP. */
235 EMPTY_HOWTO (7),
236
237 /* For 32-bit sh, this is R_SH_DIR8W. */
238 EMPTY_HOWTO (8),
239
240 /* For 32-bit sh, this is R_SH_DIR8L. */
241 EMPTY_HOWTO (9),
242
243 EMPTY_HOWTO (10),
244 EMPTY_HOWTO (11),
245 EMPTY_HOWTO (12),
246 EMPTY_HOWTO (13),
247 EMPTY_HOWTO (14),
248 EMPTY_HOWTO (15),
249 EMPTY_HOWTO (16),
250 EMPTY_HOWTO (17),
251 EMPTY_HOWTO (18),
252 EMPTY_HOWTO (19),
253 EMPTY_HOWTO (20),
254 EMPTY_HOWTO (21),
255 EMPTY_HOWTO (22),
256 EMPTY_HOWTO (23),
257 EMPTY_HOWTO (24),
258
259 /* The remaining relocs are a GNU extension used for relaxing. The
260 final pass of the linker never needs to do anything with any of
261 these relocs. Any required operations are handled by the
262 relaxation code. */
263
264 /* A 16 bit switch table entry. This is generated for an expression
265 such as ``.word L1 - L2''. The offset holds the difference
266 between the reloc address and L2. */
267 HOWTO (R_SH_SWITCH16, /* type */
268 0, /* rightshift */
269 1, /* size (0 = byte, 1 = short, 2 = long) */
270 16, /* bitsize */
271 FALSE, /* pc_relative */
272 0, /* bitpos */
273 complain_overflow_unsigned, /* complain_on_overflow */
274 sh_elf64_ignore_reloc, /* special_function */
275 "R_SH_SWITCH16", /* name */
276 FALSE, /* partial_inplace */
277 0, /* src_mask */
278 0, /* dst_mask */
279 TRUE), /* pcrel_offset */
280
281 /* A 32 bit switch table entry. This is generated for an expression
282 such as ``.long L1 - L2''. The offset holds the difference
283 between the reloc address and L2. */
284 HOWTO (R_SH_SWITCH32, /* type */
285 0, /* rightshift */
286 2, /* size (0 = byte, 1 = short, 2 = long) */
287 32, /* bitsize */
288 FALSE, /* pc_relative */
289 0, /* bitpos */
290 complain_overflow_unsigned, /* complain_on_overflow */
291 sh_elf64_ignore_reloc, /* special_function */
292 "R_SH_SWITCH32", /* name */
293 FALSE, /* partial_inplace */
294 0, /* src_mask */
295 0, /* dst_mask */
296 TRUE), /* pcrel_offset */
297
298 /* For 32-bit sh, this is R_SH_USES. */
299 EMPTY_HOWTO (27),
300
301 /* For 32-bit sh, this is R_SH_COUNT. */
302 EMPTY_HOWTO (28),
303
304 /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation,
305 this might be emitted. When linker relaxation is implemented, we
306 might want to use it. */
307 EMPTY_HOWTO (29),
308
309 /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation,
310 this might be emitted. When linker relaxation is implemented, we
311 might want to use it. */
312 EMPTY_HOWTO (30),
313
314 /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation,
315 this might be emitted. When linker relaxation is implemented, we
316 might want to use it. */
317 EMPTY_HOWTO (31),
318
319 /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation,
320 this might be emitted. When linker relaxation is implemented, we
321 might want to use it. */
322 EMPTY_HOWTO (32),
323
324 /* An 8 bit switch table entry. This is generated for an expression
325 such as ``.word L1 - L2''. The offset holds the difference
326 between the reloc address and L2. */
327 HOWTO (R_SH_SWITCH8, /* type */
328 0, /* rightshift */
329 0, /* size (0 = byte, 1 = short, 2 = long) */
330 8, /* bitsize */
331 FALSE, /* pc_relative */
332 0, /* bitpos */
333 complain_overflow_unsigned, /* complain_on_overflow */
334 sh_elf64_ignore_reloc, /* special_function */
335 "R_SH_SWITCH8", /* name */
336 FALSE, /* partial_inplace */
337 0, /* src_mask */
338 0, /* dst_mask */
339 TRUE), /* pcrel_offset */
340
341 /* GNU extension to record C++ vtable hierarchy */
342 HOWTO (R_SH_GNU_VTINHERIT, /* type */
343 0, /* rightshift */
344 2, /* size (0 = byte, 1 = short, 2 = long) */
345 0, /* bitsize */
346 FALSE, /* pc_relative */
347 0, /* bitpos */
348 complain_overflow_dont, /* complain_on_overflow */
349 NULL, /* special_function */
350 "R_SH_GNU_VTINHERIT", /* name */
351 FALSE, /* partial_inplace */
352 0, /* src_mask */
353 0, /* dst_mask */
354 FALSE), /* pcrel_offset */
355
356 /* GNU extension to record C++ vtable member usage */
357 HOWTO (R_SH_GNU_VTENTRY, /* type */
358 0, /* rightshift */
359 2, /* size (0 = byte, 1 = short, 2 = long) */
360 0, /* bitsize */
361 FALSE, /* pc_relative */
362 0, /* bitpos */
363 complain_overflow_dont, /* complain_on_overflow */
364 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
365 "R_SH_GNU_VTENTRY", /* name */
366 FALSE, /* partial_inplace */
367 0, /* src_mask */
368 0, /* dst_mask */
369 FALSE), /* pcrel_offset */
370
371 /* For 32-bit sh, this is R_SH_LOOP_START. */
372 EMPTY_HOWTO (36),
373
374 /* For 32-bit sh, this is R_SH_LOOP_END. */
375 EMPTY_HOWTO (37),
376
377 EMPTY_HOWTO (38),
378 EMPTY_HOWTO (39),
379 EMPTY_HOWTO (40),
380 EMPTY_HOWTO (41),
381 EMPTY_HOWTO (42),
382 EMPTY_HOWTO (43),
383 EMPTY_HOWTO (44),
384
385 /* Used in SHLLI.L and SHLRI.L. */
386 HOWTO (R_SH_DIR5U, /* type */
387 0, /* rightshift */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
389 5, /* bitsize */
390 FALSE, /* pc_relative */
391 10, /* bitpos */
392 complain_overflow_unsigned, /* complain_on_overflow */
393 bfd_elf_generic_reloc, /* special_function */
394 "R_SH_DIR5U", /* name */
395 FALSE, /* partial_inplace */
396 0, /* src_mask */
397 0xfc00, /* dst_mask */
398 FALSE), /* pcrel_offset */
399
400 /* Used in SHARI, SHLLI et al. */
401 HOWTO (R_SH_DIR6U, /* type */
402 0, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 6, /* bitsize */
405 FALSE, /* pc_relative */
406 10, /* bitpos */
407 complain_overflow_unsigned, /* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_SH_DIR6U", /* name */
410 FALSE, /* partial_inplace */
411 0, /* src_mask */
412 0xfc00, /* dst_mask */
413 FALSE), /* pcrel_offset */
414
415 /* Used in BxxI, LDHI.L et al. */
416 HOWTO (R_SH_DIR6S, /* type */
417 0, /* rightshift */
418 2, /* size (0 = byte, 1 = short, 2 = long) */
419 6, /* bitsize */
420 FALSE, /* pc_relative */
421 10, /* bitpos */
422 complain_overflow_signed, /* complain_on_overflow */
423 bfd_elf_generic_reloc, /* special_function */
424 "R_SH_DIR6S", /* name */
425 FALSE, /* partial_inplace */
426 0, /* src_mask */
427 0xfc00, /* dst_mask */
428 FALSE), /* pcrel_offset */
429
430 /* Used in ADDI, ANDI et al. */
431 HOWTO (R_SH_DIR10S, /* type */
432 0, /* rightshift */
433 2, /* size (0 = byte, 1 = short, 2 = long) */
434 10, /* bitsize */
435 FALSE, /* pc_relative */
436 10, /* bitpos */
437 complain_overflow_signed, /* complain_on_overflow */
438 bfd_elf_generic_reloc, /* special_function */
439 "R_SH_DIR10S", /* name */
440 FALSE, /* partial_inplace */
441 0, /* src_mask */
442 0xffc00, /* dst_mask */
443 FALSE), /* pcrel_offset */
444
445 /* Used in LD.UW, ST.W et al. */
446 HOWTO (R_SH_DIR10SW, /* type */
447 1, /* rightshift */
448 2, /* size (0 = byte, 1 = short, 2 = long) */
449 11, /* bitsize */
450 FALSE, /* pc_relative */
451 10, /* bitpos */
452 complain_overflow_signed, /* complain_on_overflow */
453 bfd_elf_generic_reloc, /* special_function */
454 "R_SH_DIR10SW", /* name */
455 FALSE, /* partial_inplace */
456 0, /* src_mask */
457 0xffc00, /* dst_mask */
458 FALSE), /* pcrel_offset */
459
460 /* Used in LD.L, FLD.S et al. */
461 HOWTO (R_SH_DIR10SL, /* type */
462 2, /* rightshift */
463 2, /* size (0 = byte, 1 = short, 2 = long) */
464 12, /* bitsize */
465 FALSE, /* pc_relative */
466 10, /* bitpos */
467 complain_overflow_signed, /* complain_on_overflow */
468 bfd_elf_generic_reloc, /* special_function */
469 "R_SH_DIR10SL", /* name */
470 FALSE, /* partial_inplace */
471 0, /* src_mask */
472 0xffc00, /* dst_mask */
473 FALSE), /* pcrel_offset */
474
475 /* Used in FLD.D, FST.P et al. */
476 HOWTO (R_SH_DIR10SQ, /* type */
477 3, /* rightshift */
478 2, /* size (0 = byte, 1 = short, 2 = long) */
479 13, /* bitsize */
480 FALSE, /* pc_relative */
481 10, /* bitpos */
482 complain_overflow_signed, /* complain_on_overflow */
483 bfd_elf_generic_reloc, /* special_function */
484 "R_SH_DIR10SQ", /* name */
485 FALSE, /* partial_inplace */
486 0, /* src_mask */
487 0xffc00, /* dst_mask */
488 FALSE), /* pcrel_offset */
489
490 EMPTY_HOWTO (52),
491 EMPTY_HOWTO (53),
492 EMPTY_HOWTO (54),
493 EMPTY_HOWTO (55),
494 EMPTY_HOWTO (56),
495 EMPTY_HOWTO (57),
496 EMPTY_HOWTO (58),
497 EMPTY_HOWTO (59),
498 EMPTY_HOWTO (60),
499 EMPTY_HOWTO (61),
500 EMPTY_HOWTO (62),
501 EMPTY_HOWTO (63),
502 EMPTY_HOWTO (64),
503 EMPTY_HOWTO (65),
504 EMPTY_HOWTO (66),
505 EMPTY_HOWTO (67),
506 EMPTY_HOWTO (68),
507 EMPTY_HOWTO (69),
508 EMPTY_HOWTO (70),
509 EMPTY_HOWTO (71),
510 EMPTY_HOWTO (72),
511 EMPTY_HOWTO (73),
512 EMPTY_HOWTO (74),
513 EMPTY_HOWTO (75),
514 EMPTY_HOWTO (76),
515 EMPTY_HOWTO (77),
516 EMPTY_HOWTO (78),
517 EMPTY_HOWTO (79),
518 EMPTY_HOWTO (80),
519 EMPTY_HOWTO (81),
520 EMPTY_HOWTO (82),
521 EMPTY_HOWTO (83),
522 EMPTY_HOWTO (84),
523 EMPTY_HOWTO (85),
524 EMPTY_HOWTO (86),
525 EMPTY_HOWTO (87),
526 EMPTY_HOWTO (88),
527 EMPTY_HOWTO (89),
528 EMPTY_HOWTO (90),
529 EMPTY_HOWTO (91),
530 EMPTY_HOWTO (92),
531 EMPTY_HOWTO (93),
532 EMPTY_HOWTO (94),
533 EMPTY_HOWTO (95),
534 EMPTY_HOWTO (96),
535 EMPTY_HOWTO (97),
536 EMPTY_HOWTO (98),
537 EMPTY_HOWTO (99),
538 EMPTY_HOWTO (100),
539 EMPTY_HOWTO (101),
540 EMPTY_HOWTO (102),
541 EMPTY_HOWTO (103),
542 EMPTY_HOWTO (104),
543 EMPTY_HOWTO (105),
544 EMPTY_HOWTO (106),
545 EMPTY_HOWTO (107),
546 EMPTY_HOWTO (108),
547 EMPTY_HOWTO (109),
548 EMPTY_HOWTO (110),
549 EMPTY_HOWTO (111),
550 EMPTY_HOWTO (112),
551 EMPTY_HOWTO (113),
552 EMPTY_HOWTO (114),
553 EMPTY_HOWTO (115),
554 EMPTY_HOWTO (116),
555 EMPTY_HOWTO (117),
556 EMPTY_HOWTO (118),
557 EMPTY_HOWTO (119),
558 EMPTY_HOWTO (120),
559 EMPTY_HOWTO (121),
560 EMPTY_HOWTO (122),
561 EMPTY_HOWTO (123),
562 EMPTY_HOWTO (124),
563 EMPTY_HOWTO (125),
564 EMPTY_HOWTO (126),
565 EMPTY_HOWTO (127),
566 EMPTY_HOWTO (128),
567 EMPTY_HOWTO (129),
568 EMPTY_HOWTO (130),
569 EMPTY_HOWTO (131),
570 EMPTY_HOWTO (132),
571 EMPTY_HOWTO (133),
572 EMPTY_HOWTO (134),
573 EMPTY_HOWTO (135),
574 EMPTY_HOWTO (136),
575 EMPTY_HOWTO (137),
576 EMPTY_HOWTO (138),
577 EMPTY_HOWTO (139),
578 EMPTY_HOWTO (140),
579 EMPTY_HOWTO (141),
580 EMPTY_HOWTO (142),
581 EMPTY_HOWTO (143),
582 EMPTY_HOWTO (144),
583 EMPTY_HOWTO (145),
584 EMPTY_HOWTO (146),
585 EMPTY_HOWTO (147),
586 EMPTY_HOWTO (148),
587 EMPTY_HOWTO (149),
588 EMPTY_HOWTO (150),
589 EMPTY_HOWTO (151),
590 EMPTY_HOWTO (152),
591 EMPTY_HOWTO (153),
592 EMPTY_HOWTO (154),
593 EMPTY_HOWTO (155),
594 EMPTY_HOWTO (156),
595 EMPTY_HOWTO (157),
596 EMPTY_HOWTO (158),
597 EMPTY_HOWTO (159),
598
599 /* Relocs for dynamic linking for 32-bit SH would follow. We don't have
600 any dynamic linking support for 64-bit SH at present. */
601
602 EMPTY_HOWTO (160),
603 EMPTY_HOWTO (161),
604 EMPTY_HOWTO (162),
605 EMPTY_HOWTO (163),
606 EMPTY_HOWTO (164),
607 EMPTY_HOWTO (165),
608 EMPTY_HOWTO (166),
609 EMPTY_HOWTO (167),
610 EMPTY_HOWTO (168),
611
612 /* Back to SH5 relocations. */
613 /* Used in MOVI and SHORI (x & 65536). */
614 HOWTO (R_SH_GOT_LOW16, /* type */
615 0, /* rightshift */
616 2, /* size (0 = byte, 1 = short, 2 = long) */
617 64, /* bitsize */
618 FALSE, /* pc_relative */
619 10, /* bitpos */
620 complain_overflow_dont, /* complain_on_overflow */
621 bfd_elf_generic_reloc, /* special_function */
622 "R_SH_GOT_LOW16", /* name */
623 FALSE, /* partial_inplace */
624 0, /* src_mask */
625 0x3fffc00, /* dst_mask */
626 FALSE), /* pcrel_offset */
627
628 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
629 HOWTO (R_SH_GOT_MEDLOW16, /* type */
630 16, /* rightshift */
631 2, /* size (0 = byte, 1 = short, 2 = long) */
632 64, /* bitsize */
633 FALSE, /* pc_relative */
634 10, /* bitpos */
635 complain_overflow_dont, /* complain_on_overflow */
636 bfd_elf_generic_reloc, /* special_function */
637 "R_SH_GOT_MEDLOW16", /* name */
638 FALSE, /* partial_inplace */
639 0, /* src_mask */
640 0x3fffc00, /* dst_mask */
641 FALSE), /* pcrel_offset */
642
643 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
644 HOWTO (R_SH_GOT_MEDHI16, /* type */
645 32, /* rightshift */
646 2, /* size (0 = byte, 1 = short, 2 = long) */
647 64, /* bitsize */
648 FALSE, /* pc_relative */
649 10, /* bitpos */
650 complain_overflow_dont, /* complain_on_overflow */
651 bfd_elf_generic_reloc, /* special_function */
652 "R_SH_GOT_MEDHI16", /* name */
653 FALSE, /* partial_inplace */
654 0, /* src_mask */
655 0x3fffc00, /* dst_mask */
656 FALSE), /* pcrel_offset */
657
658 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
659 HOWTO (R_SH_GOT_HI16, /* type */
660 48, /* rightshift */
661 2, /* size (0 = byte, 1 = short, 2 = long) */
662 64, /* bitsize */
663 FALSE, /* pc_relative */
664 10, /* bitpos */
665 complain_overflow_dont, /* complain_on_overflow */
666 bfd_elf_generic_reloc, /* special_function */
667 "R_SH_GOT_HI16", /* name */
668 FALSE, /* partial_inplace */
669 0, /* src_mask */
670 0x3fffc00, /* dst_mask */
671 FALSE), /* pcrel_offset */
672
673 /* Used in MOVI and SHORI (x & 65536). */
674 HOWTO (R_SH_GOTPLT_LOW16, /* type */
675 0, /* rightshift */
676 2, /* size (0 = byte, 1 = short, 2 = long) */
677 64, /* bitsize */
678 FALSE, /* pc_relative */
679 10, /* bitpos */
680 complain_overflow_dont, /* complain_on_overflow */
681 bfd_elf_generic_reloc, /* special_function */
682 "R_SH_GOTPLT_LOW16", /* name */
683 FALSE, /* partial_inplace */
684 0, /* src_mask */
685 0x3fffc00, /* dst_mask */
686 FALSE), /* pcrel_offset */
687
688 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
689 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */
690 16, /* rightshift */
691 2, /* size (0 = byte, 1 = short, 2 = long) */
692 64, /* bitsize */
693 FALSE, /* pc_relative */
694 10, /* bitpos */
695 complain_overflow_dont, /* complain_on_overflow */
696 bfd_elf_generic_reloc, /* special_function */
697 "R_SH_GOTPLT_MEDLOW16", /* name */
698 FALSE, /* partial_inplace */
699 0, /* src_mask */
700 0x3fffc00, /* dst_mask */
701 FALSE), /* pcrel_offset */
702
703 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
704 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */
705 32, /* rightshift */
706 2, /* size (0 = byte, 1 = short, 2 = long) */
707 64, /* bitsize */
708 FALSE, /* pc_relative */
709 10, /* bitpos */
710 complain_overflow_dont, /* complain_on_overflow */
711 bfd_elf_generic_reloc, /* special_function */
712 "R_SH_GOTPLT_MEDHI16", /* name */
713 FALSE, /* partial_inplace */
714 0, /* src_mask */
715 0x3fffc00, /* dst_mask */
716 FALSE), /* pcrel_offset */
717
718 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
719 HOWTO (R_SH_GOTPLT_HI16, /* type */
720 48, /* rightshift */
721 2, /* size (0 = byte, 1 = short, 2 = long) */
722 64, /* bitsize */
723 FALSE, /* pc_relative */
724 10, /* bitpos */
725 complain_overflow_dont, /* complain_on_overflow */
726 bfd_elf_generic_reloc, /* special_function */
727 "R_SH_GOTPLT_HI16", /* name */
728 FALSE, /* partial_inplace */
729 0, /* src_mask */
730 0x3fffc00, /* dst_mask */
731 FALSE), /* pcrel_offset */
732
733 /* Used in MOVI and SHORI (x & 65536). */
734 HOWTO (R_SH_PLT_LOW16, /* type */
735 0, /* rightshift */
736 2, /* size (0 = byte, 1 = short, 2 = long) */
737 64, /* bitsize */
738 TRUE, /* pc_relative */
739 10, /* bitpos */
740 complain_overflow_dont, /* complain_on_overflow */
741 bfd_elf_generic_reloc, /* special_function */
742 "R_SH_PLT_LOW16", /* name */
743 FALSE, /* partial_inplace */
744 0, /* src_mask */
745 0x3fffc00, /* dst_mask */
746 TRUE), /* pcrel_offset */
747
748 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
749 HOWTO (R_SH_PLT_MEDLOW16, /* type */
750 16, /* rightshift */
751 2, /* size (0 = byte, 1 = short, 2 = long) */
752 64, /* bitsize */
753 TRUE, /* pc_relative */
754 10, /* bitpos */
755 complain_overflow_dont, /* complain_on_overflow */
756 bfd_elf_generic_reloc, /* special_function */
757 "R_SH_PLT_MEDLOW16", /* name */
758 FALSE, /* partial_inplace */
759 0, /* src_mask */
760 0x3fffc00, /* dst_mask */
761 TRUE), /* pcrel_offset */
762
763 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
764 HOWTO (R_SH_PLT_MEDHI16, /* type */
765 32, /* rightshift */
766 2, /* size (0 = byte, 1 = short, 2 = long) */
767 64, /* bitsize */
768 TRUE, /* pc_relative */
769 10, /* bitpos */
770 complain_overflow_dont, /* complain_on_overflow */
771 bfd_elf_generic_reloc, /* special_function */
772 "R_SH_PLT_MEDHI16", /* name */
773 FALSE, /* partial_inplace */
774 0, /* src_mask */
775 0x3fffc00, /* dst_mask */
776 TRUE), /* pcrel_offset */
777
778 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
779 HOWTO (R_SH_PLT_HI16, /* type */
780 48, /* rightshift */
781 2, /* size (0 = byte, 1 = short, 2 = long) */
782 64, /* bitsize */
783 TRUE, /* pc_relative */
784 10, /* bitpos */
785 complain_overflow_dont, /* complain_on_overflow */
786 bfd_elf_generic_reloc, /* special_function */
787 "R_SH_PLT_HI16", /* name */
788 FALSE, /* partial_inplace */
789 0, /* src_mask */
790 0x3fffc00, /* dst_mask */
791 TRUE), /* pcrel_offset */
792
793 /* Used in MOVI and SHORI (x & 65536). */
794 HOWTO (R_SH_GOTOFF_LOW16, /* type */
795 0, /* rightshift */
796 2, /* size (0 = byte, 1 = short, 2 = long) */
797 64, /* bitsize */
798 FALSE, /* pc_relative */
799 10, /* bitpos */
800 complain_overflow_dont, /* complain_on_overflow */
801 bfd_elf_generic_reloc, /* special_function */
802 "R_SH_GOTOFF_LOW16", /* name */
803 FALSE, /* partial_inplace */
804 0, /* src_mask */
805 0x3fffc00, /* dst_mask */
806 FALSE), /* pcrel_offset */
807
808 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
809 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */
810 16, /* rightshift */
811 2, /* size (0 = byte, 1 = short, 2 = long) */
812 64, /* bitsize */
813 FALSE, /* pc_relative */
814 10, /* bitpos */
815 complain_overflow_dont, /* complain_on_overflow */
816 bfd_elf_generic_reloc, /* special_function */
817 "R_SH_GOTOFF_MEDLOW16", /* name */
818 FALSE, /* partial_inplace */
819 0, /* src_mask */
820 0x3fffc00, /* dst_mask */
821 FALSE), /* pcrel_offset */
822
823 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
824 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */
825 32, /* rightshift */
826 2, /* size (0 = byte, 1 = short, 2 = long) */
827 64, /* bitsize */
828 FALSE, /* pc_relative */
829 10, /* bitpos */
830 complain_overflow_dont, /* complain_on_overflow */
831 bfd_elf_generic_reloc, /* special_function */
832 "R_SH_GOTOFF_MEDHI16", /* name */
833 FALSE, /* partial_inplace */
834 0, /* src_mask */
835 0x3fffc00, /* dst_mask */
836 FALSE), /* pcrel_offset */
837
838 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
839 HOWTO (R_SH_GOTOFF_HI16, /* type */
840 48, /* rightshift */
841 2, /* size (0 = byte, 1 = short, 2 = long) */
842 64, /* bitsize */
843 FALSE, /* pc_relative */
844 10, /* bitpos */
845 complain_overflow_dont, /* complain_on_overflow */
846 bfd_elf_generic_reloc, /* special_function */
847 "R_SH_GOTOFF_HI16", /* name */
848 FALSE, /* partial_inplace */
849 0, /* src_mask */
850 0x3fffc00, /* dst_mask */
851 FALSE), /* pcrel_offset */
852
853 /* Used in MOVI and SHORI (x & 65536). */
854 HOWTO (R_SH_GOTPC_LOW16, /* type */
855 0, /* rightshift */
856 2, /* size (0 = byte, 1 = short, 2 = long) */
857 64, /* bitsize */
858 TRUE, /* pc_relative */
859 10, /* bitpos */
860 complain_overflow_dont, /* complain_on_overflow */
861 bfd_elf_generic_reloc, /* special_function */
862 "R_SH_GOTPC_LOW16", /* name */
863 FALSE, /* partial_inplace */
864 0, /* src_mask */
865 0x3fffc00, /* dst_mask */
866 TRUE), /* pcrel_offset */
867
868 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
869 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */
870 16, /* rightshift */
871 2, /* size (0 = byte, 1 = short, 2 = long) */
872 64, /* bitsize */
873 TRUE, /* pc_relative */
874 10, /* bitpos */
875 complain_overflow_dont, /* complain_on_overflow */
876 bfd_elf_generic_reloc, /* special_function */
877 "R_SH_GOTPC_MEDLOW16", /* name */
878 FALSE, /* partial_inplace */
879 0, /* src_mask */
880 0x3fffc00, /* dst_mask */
881 TRUE), /* pcrel_offset */
882
883 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
884 HOWTO (R_SH_GOTPC_MEDHI16, /* type */
885 32, /* rightshift */
886 2, /* size (0 = byte, 1 = short, 2 = long) */
887 64, /* bitsize */
888 TRUE, /* pc_relative */
889 10, /* bitpos */
890 complain_overflow_dont, /* complain_on_overflow */
891 bfd_elf_generic_reloc, /* special_function */
892 "R_SH_GOTPC_MEDHI16", /* name */
893 FALSE, /* partial_inplace */
894 0, /* src_mask */
895 0x3fffc00, /* dst_mask */
896 TRUE), /* pcrel_offset */
897
898 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
899 HOWTO (R_SH_GOTPC_HI16, /* type */
900 48, /* rightshift */
901 2, /* size (0 = byte, 1 = short, 2 = long) */
902 64, /* bitsize */
903 TRUE, /* pc_relative */
904 10, /* bitpos */
905 complain_overflow_dont, /* complain_on_overflow */
906 bfd_elf_generic_reloc, /* special_function */
907 "R_SH_GOTPC_HI16", /* name */
908 FALSE, /* partial_inplace */
909 0, /* src_mask */
910 0x3fffc00, /* dst_mask */
911 TRUE), /* pcrel_offset */
912
913 /* Used in LD.L, FLD.S et al. */
914 HOWTO (R_SH_GOT10BY4, /* type */
915 2, /* rightshift */
916 2, /* size (0 = byte, 1 = short, 2 = long) */
917 12, /* bitsize */
918 FALSE, /* pc_relative */
919 10, /* bitpos */
920 complain_overflow_signed, /* complain_on_overflow */
921 bfd_elf_generic_reloc, /* special_function */
922 "R_SH_GOT10BY4", /* name */
923 FALSE, /* partial_inplace */
924 0, /* src_mask */
925 0xffc00, /* dst_mask */
926 FALSE), /* pcrel_offset */
927
928 /* Used in LD.L, FLD.S et al. */
929 HOWTO (R_SH_GOTPLT10BY4, /* type */
930 2, /* rightshift */
931 2, /* size (0 = byte, 1 = short, 2 = long) */
932 12, /* bitsize */
933 FALSE, /* pc_relative */
934 10, /* bitpos */
935 complain_overflow_signed, /* complain_on_overflow */
936 bfd_elf_generic_reloc, /* special_function */
937 "R_SH_GOTPLT10BY4", /* name */
938 FALSE, /* partial_inplace */
939 0, /* src_mask */
940 0xffc00, /* dst_mask */
941 FALSE), /* pcrel_offset */
942
943 /* Used in FLD.D, FST.P et al. */
944 HOWTO (R_SH_GOT10BY8, /* type */
945 3, /* rightshift */
946 2, /* size (0 = byte, 1 = short, 2 = long) */
947 13, /* bitsize */
948 FALSE, /* pc_relative */
949 10, /* bitpos */
950 complain_overflow_signed, /* complain_on_overflow */
951 bfd_elf_generic_reloc, /* special_function */
952 "R_SH_GOT10BY8", /* name */
953 FALSE, /* partial_inplace */
954 0, /* src_mask */
955 0xffc00, /* dst_mask */
956 FALSE), /* pcrel_offset */
957
958 /* Used in FLD.D, FST.P et al. */
959 HOWTO (R_SH_GOTPLT10BY8, /* type */
960 3, /* rightshift */
961 2, /* size (0 = byte, 1 = short, 2 = long) */
962 13, /* bitsize */
963 FALSE, /* pc_relative */
964 10, /* bitpos */
965 complain_overflow_signed, /* complain_on_overflow */
966 bfd_elf_generic_reloc, /* special_function */
967 "R_SH_GOTPLT10BY8", /* name */
968 FALSE, /* partial_inplace */
969 0, /* src_mask */
970 0xffc00, /* dst_mask */
971 FALSE), /* pcrel_offset */
972
973 HOWTO (R_SH_COPY64, /* type */
974 0, /* rightshift */
975 4, /* size (0 = byte, 1 = short, 2 = long) */
976 64, /* bitsize */
977 FALSE, /* pc_relative */
978 0, /* bitpos */
979 complain_overflow_dont, /* complain_on_overflow */
980 bfd_elf_generic_reloc, /* special_function */
981 "R_SH_COPY64", /* name */
982 FALSE, /* partial_inplace */
983 0, /* src_mask */
984 ((bfd_vma) 0) - 1, /* dst_mask */
985 FALSE), /* pcrel_offset */
986
987 HOWTO (R_SH_GLOB_DAT64, /* type */
988 0, /* rightshift */
989 4, /* size (0 = byte, 1 = short, 2 = long) */
990 64, /* bitsize */
991 FALSE, /* pc_relative */
992 0, /* bitpos */
993 complain_overflow_dont, /* complain_on_overflow */
994 bfd_elf_generic_reloc, /* special_function */
995 "R_SH_GLOB_DAT64", /* name */
996 FALSE, /* partial_inplace */
997 0, /* src_mask */
998 ((bfd_vma) 0) - 1, /* dst_mask */
999 FALSE), /* pcrel_offset */
1000
1001 HOWTO (R_SH_JMP_SLOT64, /* type */
1002 0, /* rightshift */
1003 4, /* size (0 = byte, 1 = short, 2 = long) */
1004 64, /* bitsize */
1005 FALSE, /* pc_relative */
1006 0, /* bitpos */
1007 complain_overflow_dont, /* complain_on_overflow */
1008 bfd_elf_generic_reloc, /* special_function */
1009 "R_SH_JMP_SLOT64", /* name */
1010 FALSE, /* partial_inplace */
1011 0, /* src_mask */
1012 ((bfd_vma) 0) - 1, /* dst_mask */
1013 FALSE), /* pcrel_offset */
1014
1015 HOWTO (R_SH_RELATIVE64, /* type */
1016 0, /* rightshift */
1017 4, /* size (0 = byte, 1 = short, 2 = long) */
1018 64, /* bitsize */
1019 FALSE, /* pc_relative */
1020 0, /* bitpos */
1021 complain_overflow_dont, /* complain_on_overflow */
1022 bfd_elf_generic_reloc, /* special_function */
1023 "R_SH_RELATIVE64", /* name */
1024 FALSE, /* partial_inplace */
1025 0, /* src_mask */
1026 ((bfd_vma) 0) - 1, /* dst_mask */
1027 FALSE), /* pcrel_offset */
1028
1029 EMPTY_HOWTO (197),
1030 EMPTY_HOWTO (198),
1031 EMPTY_HOWTO (199),
1032 EMPTY_HOWTO (200),
1033 EMPTY_HOWTO (201),
1034 EMPTY_HOWTO (202),
1035 EMPTY_HOWTO (203),
1036 EMPTY_HOWTO (204),
1037 EMPTY_HOWTO (205),
1038 EMPTY_HOWTO (206),
1039 EMPTY_HOWTO (207),
1040 EMPTY_HOWTO (208),
1041 EMPTY_HOWTO (209),
1042 EMPTY_HOWTO (210),
1043 EMPTY_HOWTO (211),
1044 EMPTY_HOWTO (212),
1045 EMPTY_HOWTO (213),
1046 EMPTY_HOWTO (214),
1047 EMPTY_HOWTO (215),
1048 EMPTY_HOWTO (216),
1049 EMPTY_HOWTO (217),
1050 EMPTY_HOWTO (218),
1051 EMPTY_HOWTO (219),
1052 EMPTY_HOWTO (220),
1053 EMPTY_HOWTO (221),
1054 EMPTY_HOWTO (222),
1055 EMPTY_HOWTO (223),
1056 EMPTY_HOWTO (224),
1057 EMPTY_HOWTO (225),
1058 EMPTY_HOWTO (226),
1059 EMPTY_HOWTO (227),
1060 EMPTY_HOWTO (228),
1061 EMPTY_HOWTO (229),
1062 EMPTY_HOWTO (230),
1063 EMPTY_HOWTO (231),
1064 EMPTY_HOWTO (232),
1065 EMPTY_HOWTO (233),
1066 EMPTY_HOWTO (234),
1067 EMPTY_HOWTO (235),
1068 EMPTY_HOWTO (236),
1069 EMPTY_HOWTO (237),
1070 EMPTY_HOWTO (238),
1071 EMPTY_HOWTO (239),
1072 EMPTY_HOWTO (240),
1073 EMPTY_HOWTO (241),
1074
1075 /* Relocations for SHmedia code. None of these are partial_inplace or
1076 use the field being relocated. */
1077
1078 /* The assembler will generate this reloc before a block of SHmedia
1079 instructions. A section should be processed as assuming it contains
1080 data, unless this reloc is seen. Note that a block of SHcompact
1081 instructions are instead preceded by R_SH_CODE.
1082 This is currently not implemented, but should be used for SHmedia
1083 linker relaxation. */
1084 HOWTO (R_SH_SHMEDIA_CODE, /* type */
1085 0, /* rightshift */
1086 1, /* size (0 = byte, 1 = short, 2 = long) */
1087 0, /* bitsize */
1088 FALSE, /* pc_relative */
1089 0, /* bitpos */
1090 complain_overflow_unsigned, /* complain_on_overflow */
1091 sh_elf64_ignore_reloc, /* special_function */
1092 "R_SH_SHMEDIA_CODE", /* name */
1093 FALSE, /* partial_inplace */
1094 0, /* src_mask */
1095 0, /* dst_mask */
1096 FALSE), /* pcrel_offset */
1097
1098 /* The assembler will generate this reloc at a PTA or PTB instruction,
1099 and the linker checks the right type of target, or changes a PTA to a
1100 PTB, if the original insn was PT. */
1101 HOWTO (R_SH_PT_16, /* type */
1102 2, /* rightshift */
1103 2, /* size (0 = byte, 1 = short, 2 = long) */
1104 18, /* bitsize */
1105 TRUE, /* pc_relative */
1106 10, /* bitpos */
1107 complain_overflow_signed, /* complain_on_overflow */
1108 bfd_elf_generic_reloc, /* special_function */
1109 "R_SH_PT_16", /* name */
1110 FALSE, /* partial_inplace */
1111 0, /* src_mask */
1112 0x3fffc00, /* dst_mask */
1113 TRUE), /* pcrel_offset */
1114
1115 /* Used in unexpanded MOVI. */
1116 HOWTO (R_SH_IMMS16, /* type */
1117 0, /* rightshift */
1118 2, /* size (0 = byte, 1 = short, 2 = long) */
1119 16, /* bitsize */
1120 FALSE, /* pc_relative */
1121 10, /* bitpos */
1122 complain_overflow_signed, /* complain_on_overflow */
1123 bfd_elf_generic_reloc, /* special_function */
1124 "R_SH_IMMS16", /* name */
1125 FALSE, /* partial_inplace */
1126 0, /* src_mask */
1127 0x3fffc00, /* dst_mask */
1128 FALSE), /* pcrel_offset */
1129
1130 /* Used in SHORI. */
1131 HOWTO (R_SH_IMMU16, /* type */
1132 0, /* rightshift */
1133 2, /* size (0 = byte, 1 = short, 2 = long) */
1134 16, /* bitsize */
1135 FALSE, /* pc_relative */
1136 10, /* bitpos */
1137 complain_overflow_unsigned, /* complain_on_overflow */
1138 bfd_elf_generic_reloc, /* special_function */
1139 "R_SH_IMMU16", /* name */
1140 FALSE, /* partial_inplace */
1141 0, /* src_mask */
1142 0x3fffc00, /* dst_mask */
1143 FALSE), /* pcrel_offset */
1144
1145 /* Used in MOVI and SHORI (x & 65536). */
1146 HOWTO (R_SH_IMM_LOW16, /* type */
1147 0, /* rightshift */
1148 2, /* size (0 = byte, 1 = short, 2 = long) */
1149 64, /* bitsize */
1150 FALSE, /* pc_relative */
1151 10, /* bitpos */
1152 complain_overflow_dont, /* complain_on_overflow */
1153 bfd_elf_generic_reloc, /* special_function */
1154 "R_SH_IMM_LOW16", /* name */
1155 FALSE, /* partial_inplace */
1156 0, /* src_mask */
1157 0x3fffc00, /* dst_mask */
1158 FALSE), /* pcrel_offset */
1159
1160 /* Used in MOVI and SHORI ((x - $) & 65536). */
1161 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */
1162 0, /* rightshift */
1163 2, /* size (0 = byte, 1 = short, 2 = long) */
1164 64, /* bitsize */
1165 TRUE, /* pc_relative */
1166 10, /* bitpos */
1167 complain_overflow_dont, /* complain_on_overflow */
1168 bfd_elf_generic_reloc, /* special_function */
1169 "R_SH_IMM_LOW16_PCREL", /* name */
1170 FALSE, /* partial_inplace */
1171 0, /* src_mask */
1172 0x3fffc00, /* dst_mask */
1173 TRUE), /* pcrel_offset */
1174
1175 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1176 HOWTO (R_SH_IMM_MEDLOW16, /* type */
1177 16, /* rightshift */
1178 2, /* size (0 = byte, 1 = short, 2 = long) */
1179 64, /* bitsize */
1180 FALSE, /* pc_relative */
1181 10, /* bitpos */
1182 complain_overflow_dont, /* complain_on_overflow */
1183 bfd_elf_generic_reloc, /* special_function */
1184 "R_SH_IMM_MEDLOW16", /* name */
1185 FALSE, /* partial_inplace */
1186 0, /* src_mask */
1187 0x3fffc00, /* dst_mask */
1188 FALSE), /* pcrel_offset */
1189
1190 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
1191 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
1192 16, /* rightshift */
1193 2, /* size (0 = byte, 1 = short, 2 = long) */
1194 64, /* bitsize */
1195 TRUE, /* pc_relative */
1196 10, /* bitpos */
1197 complain_overflow_dont, /* complain_on_overflow */
1198 bfd_elf_generic_reloc, /* special_function */
1199 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1200 FALSE, /* partial_inplace */
1201 0, /* src_mask */
1202 0x3fffc00, /* dst_mask */
1203 TRUE), /* pcrel_offset */
1204
1205 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1206 HOWTO (R_SH_IMM_MEDHI16, /* type */
1207 32, /* rightshift */
1208 2, /* size (0 = byte, 1 = short, 2 = long) */
1209 64, /* bitsize */
1210 FALSE, /* pc_relative */
1211 10, /* bitpos */
1212 complain_overflow_dont, /* complain_on_overflow */
1213 bfd_elf_generic_reloc, /* special_function */
1214 "R_SH_IMM_MEDHI16", /* name */
1215 FALSE, /* partial_inplace */
1216 0, /* src_mask */
1217 0x3fffc00, /* dst_mask */
1218 FALSE), /* pcrel_offset */
1219
1220 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
1221 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
1222 32, /* rightshift */
1223 2, /* size (0 = byte, 1 = short, 2 = long) */
1224 64, /* bitsize */
1225 TRUE, /* pc_relative */
1226 10, /* bitpos */
1227 complain_overflow_dont, /* complain_on_overflow */
1228 bfd_elf_generic_reloc, /* special_function */
1229 "R_SH_IMM_MEDHI16_PCREL", /* name */
1230 FALSE, /* partial_inplace */
1231 0, /* src_mask */
1232 0x3fffc00, /* dst_mask */
1233 TRUE), /* pcrel_offset */
1234
1235 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1236 HOWTO (R_SH_IMM_HI16, /* type */
1237 48, /* rightshift */
1238 2, /* size (0 = byte, 1 = short, 2 = long) */
1239 64, /* bitsize */
1240 FALSE, /* pc_relative */
1241 10, /* bitpos */
1242 complain_overflow_dont, /* complain_on_overflow */
1243 bfd_elf_generic_reloc, /* special_function */
1244 "R_SH_IMM_HI16", /* name */
1245 FALSE, /* partial_inplace */
1246 0, /* src_mask */
1247 0x3fffc00, /* dst_mask */
1248 FALSE), /* pcrel_offset */
1249
1250 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
1251 HOWTO (R_SH_IMM_HI16_PCREL, /* type */
1252 48, /* rightshift */
1253 2, /* size (0 = byte, 1 = short, 2 = long) */
1254 64, /* bitsize */
1255 TRUE, /* pc_relative */
1256 10, /* bitpos */
1257 complain_overflow_dont, /* complain_on_overflow */
1258 bfd_elf_generic_reloc, /* special_function */
1259 "R_SH_IMM_HI16_PCREL", /* name */
1260 FALSE, /* partial_inplace */
1261 0, /* src_mask */
1262 0x3fffc00, /* dst_mask */
1263 TRUE), /* pcrel_offset */
1264
1265 /* For the .uaquad pseudo. */
1266 HOWTO (R_SH_64, /* type */
1267 0, /* rightshift */
1268 4, /* size (0 = byte, 1 = short, 2 = long) */
1269 64, /* bitsize */
1270 FALSE, /* pc_relative */
1271 0, /* bitpos */
1272 complain_overflow_dont, /* complain_on_overflow */
1273 bfd_elf_generic_reloc, /* special_function */
1274 "R_SH_64", /* name */
1275 FALSE, /* partial_inplace */
1276 0, /* src_mask */
1277 ((bfd_vma) 0) - 1, /* dst_mask */
1278 FALSE), /* pcrel_offset */
1279
1280 /* For the .uaquad pseudo, (x - $). */
1281 HOWTO (R_SH_64_PCREL, /* type */
1282 48, /* rightshift */
1283 2, /* size (0 = byte, 1 = short, 2 = long) */
1284 64, /* bitsize */
1285 TRUE, /* pc_relative */
1286 10, /* bitpos */
1287 complain_overflow_dont, /* complain_on_overflow */
1288 bfd_elf_generic_reloc, /* special_function */
1289 "R_SH_64_PCREL", /* name */
1290 FALSE, /* partial_inplace */
1291 0, /* src_mask */
1292 ((bfd_vma) 0) - 1, /* dst_mask */
1293 TRUE), /* pcrel_offset */
1294
1295 };
1296
1297 /* This function is used for relocs which are only used for relaxing,
1298 which the linker should otherwise ignore. */
1299
1300 static bfd_reloc_status_type
1301 sh_elf64_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
1302 asymbol *symbol ATTRIBUTE_UNUSED,
1303 void *data ATTRIBUTE_UNUSED, asection *input_section,
1304 bfd *output_bfd,
1305 char **error_message ATTRIBUTE_UNUSED)
1306 {
1307 if (output_bfd != NULL)
1308 reloc_entry->address += input_section->output_offset;
1309 return bfd_reloc_ok;
1310 }
1311
1312 /* This function is used for normal relocs. This used to be like the COFF
1313 function, and is almost certainly incorrect for other ELF targets.
1314
1315 See sh_elf_reloc in elf32-sh.c for the original. */
1316
1317 static bfd_reloc_status_type
1318 sh_elf64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
1319 void *data, asection *input_section, bfd *output_bfd,
1320 char **error_message ATTRIBUTE_UNUSED)
1321 {
1322 unsigned long insn;
1323 bfd_vma sym_value;
1324 enum elf_sh_reloc_type r_type;
1325 bfd_vma addr = reloc_entry->address;
1326 bfd_byte *hit_data = addr + (bfd_byte *) data;
1327
1328 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
1329
1330 if (output_bfd != NULL)
1331 {
1332 /* Partial linking--do nothing. */
1333 reloc_entry->address += input_section->output_offset;
1334 return bfd_reloc_ok;
1335 }
1336
1337 if (symbol_in != NULL
1338 && bfd_is_und_section (symbol_in->section))
1339 return bfd_reloc_undefined;
1340
1341 if (bfd_is_com_section (symbol_in->section))
1342 sym_value = 0;
1343 else
1344 sym_value = (symbol_in->value +
1345 symbol_in->section->output_section->vma +
1346 symbol_in->section->output_offset);
1347
1348 switch (r_type)
1349 {
1350 case R_SH_DIR32:
1351 insn = bfd_get_32 (abfd, hit_data);
1352 insn += sym_value + reloc_entry->addend;
1353 bfd_put_32 (abfd, insn, hit_data);
1354 break;
1355
1356 default:
1357 abort ();
1358 break;
1359 }
1360
1361 return bfd_reloc_ok;
1362 }
1363
1364 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
1365
1366 struct elf_reloc_map
1367 {
1368 bfd_reloc_code_real_type bfd_reloc_val;
1369 unsigned char elf_reloc_val;
1370 };
1371
1372 /* An array mapping BFD reloc codes to SH ELF relocs. */
1373
1374 static const struct elf_reloc_map sh64_reloc_map[] =
1375 {
1376 { BFD_RELOC_NONE, R_SH_NONE },
1377 { BFD_RELOC_32, R_SH_DIR32 },
1378 { BFD_RELOC_CTOR, R_SH_DIR32 },
1379 { BFD_RELOC_32_PCREL, R_SH_REL32 },
1380 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
1381 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
1382 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
1383 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
1384 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
1385 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
1386 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
1387 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
1388 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
1389 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
1390 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
1391 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
1392 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
1393 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
1394 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
1395 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
1396 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
1397 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
1398 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
1399 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
1400 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
1401 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
1402 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
1403 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
1404 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
1405 { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
1406 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
1407 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
1408 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
1409 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
1410 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
1411 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
1412 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
1413 { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
1414 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
1415 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
1416 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
1417 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
1418 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
1419 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
1420 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
1421 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
1422 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
1423 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
1424 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
1425 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
1426 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
1427 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
1428 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
1429 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
1430 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
1431 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
1432 { BFD_RELOC_64, R_SH_64 },
1433 { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
1434 };
1435
1436 /* Given a BFD reloc code, return the howto structure for the
1437 corresponding SH ELf reloc. */
1438
1439 static reloc_howto_type *
1440 sh_elf64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1441 bfd_reloc_code_real_type code)
1442 {
1443 unsigned int i;
1444
1445 for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++)
1446 {
1447 if (sh64_reloc_map[i].bfd_reloc_val == code)
1448 return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val];
1449 }
1450
1451 return NULL;
1452 }
1453
1454 /* Given an ELF reloc, fill in the howto field of a relent.
1455
1456 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1457
1458 static void
1459 sh_elf64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
1460 Elf_Internal_Rela *dst)
1461 {
1462 unsigned int r;
1463
1464 r = ELF64_R_TYPE (dst->r_info);
1465
1466 BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL);
1467 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
1468 BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2);
1469 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32);
1470 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
1471
1472 cache_ptr->howto = &sh_elf64_howto_table[r];
1473 }
1474
1475 /* Relocate an SH ELF section.
1476
1477 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1478
1479 static bfd_boolean
1480 sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
1481 struct bfd_link_info *info, bfd *input_bfd,
1482 asection *input_section, bfd_byte *contents,
1483 Elf_Internal_Rela *relocs,
1484 Elf_Internal_Sym *local_syms,
1485 asection **local_sections)
1486 {
1487 Elf_Internal_Shdr *symtab_hdr;
1488 struct elf_link_hash_entry **sym_hashes;
1489 Elf_Internal_Rela *rel, *relend;
1490 bfd *dynobj;
1491 bfd_vma *local_got_offsets;
1492 asection *sgot;
1493 asection *sgotplt;
1494 asection *splt;
1495 asection *sreloc;
1496 bfd_vma disp, dropped;
1497
1498 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1499 sym_hashes = elf_sym_hashes (input_bfd);
1500 dynobj = elf_hash_table (info)->dynobj;
1501 local_got_offsets = elf_local_got_offsets (input_bfd);
1502
1503 sgot = NULL;
1504 sgotplt = NULL;
1505 splt = NULL;
1506 sreloc = NULL;
1507
1508 rel = relocs;
1509 relend = relocs + input_section->reloc_count;
1510 for (; rel < relend; rel++)
1511 {
1512 int r_type;
1513 reloc_howto_type *howto;
1514 unsigned long r_symndx;
1515 Elf_Internal_Sym *sym;
1516 asection *sec;
1517 struct elf_link_hash_entry *h;
1518 bfd_vma relocation;
1519 bfd_vma addend = (bfd_vma)0;
1520 bfd_reloc_status_type r;
1521 int seen_stt_datalabel = 0;
1522
1523 r_symndx = ELF64_R_SYM (rel->r_info);
1524
1525 r_type = ELF64_R_TYPE (rel->r_info);
1526
1527 if (r_type == (int) R_SH_NONE)
1528 continue;
1529
1530 if (r_type < 0
1531 || r_type > R_SH_64_PCREL
1532 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
1533 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1534 || (r_type >= (int) R_SH_DIR8WPN
1535 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1536 || (r_type >= (int) R_SH_GNU_VTINHERIT
1537 && r_type <= (int) R_SH_PSHL)
1538 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
1539 && r_type <= R_SH_GOTPLT32)
1540 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
1541 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4))
1542 {
1543 bfd_set_error (bfd_error_bad_value);
1544 return FALSE;
1545 }
1546
1547 howto = sh_elf64_howto_table + r_type;
1548
1549 /* This is a final link. */
1550 h = NULL;
1551 sym = NULL;
1552 sec = NULL;
1553 if (r_symndx < symtab_hdr->sh_info)
1554 {
1555 sym = local_syms + r_symndx;
1556 sec = local_sections[r_symndx];
1557 relocation = ((sec->output_section->vma
1558 + sec->output_offset
1559 + sym->st_value)
1560 | ((sym->st_other & STO_SH5_ISA32) != 0));
1561
1562 /* A local symbol never has STO_SH5_ISA32, so we don't need
1563 datalabel processing here. Make sure this does not change
1564 without notice. */
1565 if ((sym->st_other & STO_SH5_ISA32) != 0)
1566 ((*info->callbacks->reloc_dangerous)
1567 (info,
1568 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
1569 input_bfd, input_section, rel->r_offset));
1570
1571 if (info->relocatable)
1572 {
1573 /* This is a relocatable link. We don't have to change
1574 anything, unless the reloc is against a section symbol,
1575 in which case we have to adjust according to where the
1576 section symbol winds up in the output section. */
1577 sym = local_syms + r_symndx;
1578 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1579 goto final_link_relocate;
1580
1581 continue;
1582 }
1583 else if (! howto->partial_inplace)
1584 {
1585 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1586 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0);
1587 }
1588 else if ((sec->flags & SEC_MERGE)
1589 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1590 {
1591 asection *msec;
1592
1593 if (howto->rightshift || howto->src_mask != 0xffffffff)
1594 {
1595 (*_bfd_error_handler)
1596 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
1597 input_bfd, input_section,
1598 (long) rel->r_offset, howto->name);
1599 return FALSE;
1600 }
1601
1602 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1603 msec = sec;
1604 addend =
1605 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1606 - relocation;
1607 addend += msec->output_section->vma + msec->output_offset;
1608 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1609 addend = 0;
1610 }
1611 }
1612 else
1613 {
1614 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1615
1616 /* Section symbols are never (?) placed in the hash table, so
1617 we can just ignore hash relocations when creating a
1618 relocatable object file. */
1619 if (info->relocatable)
1620 continue;
1621
1622 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1623 while (h->root.type == bfd_link_hash_indirect
1624 || h->root.type == bfd_link_hash_warning)
1625 {
1626 /* If the reference passes a symbol marked with
1627 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1628 doesn't count. */
1629 seen_stt_datalabel |= h->type == STT_DATALABEL;
1630 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1631 }
1632
1633 if (h->root.type == bfd_link_hash_defined
1634 || h->root.type == bfd_link_hash_defweak)
1635 {
1636 sec = h->root.u.def.section;
1637 /* In these cases, we don't need the relocation value.
1638 We check specially because in some obscure cases
1639 sec->output_section will be NULL. */
1640 if (r_type == R_SH_GOTPC_LOW16
1641 || r_type == R_SH_GOTPC_MEDLOW16
1642 || r_type == R_SH_GOTPC_MEDHI16
1643 || r_type == R_SH_GOTPC_HI16
1644 || ((r_type == R_SH_PLT_LOW16
1645 || r_type == R_SH_PLT_MEDLOW16
1646 || r_type == R_SH_PLT_MEDHI16
1647 || r_type == R_SH_PLT_HI16)
1648 && h->plt.offset != (bfd_vma) -1)
1649 || ((r_type == R_SH_GOT_LOW16
1650 || r_type == R_SH_GOT_MEDLOW16
1651 || r_type == R_SH_GOT_MEDHI16
1652 || r_type == R_SH_GOT_HI16)
1653 && elf_hash_table (info)->dynamic_sections_created
1654 && (! info->shared
1655 || (! info->symbolic && h->dynindx != -1)
1656 || (h->elf_link_hash_flags
1657 & ELF_LINK_HASH_DEF_REGULAR) == 0))
1658 /* The cases above are those in which relocation is
1659 overwritten in the switch block below. The cases
1660 below are those in which we must defer relocation
1661 to run-time, because we can't resolve absolute
1662 addresses when creating a shared library. */
1663 || (info->shared
1664 && ((! info->symbolic && h->dynindx != -1)
1665 || (h->elf_link_hash_flags
1666 & ELF_LINK_HASH_DEF_REGULAR) == 0)
1667 && ((r_type == R_SH_64
1668 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1669 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1670 || r_type == R_SH_64_PCREL)
1671 && ((input_section->flags & SEC_ALLOC) != 0
1672 /* DWARF will emit R_SH_DIR32 relocations in its
1673 sections against symbols defined externally
1674 in shared libraries. We can't do anything
1675 with them here. */
1676 || (input_section->flags & SEC_DEBUGGING) != 0))
1677 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1678 sections because such sections are not SEC_ALLOC and
1679 thus ld.so will not process them. */
1680 || (sec->output_section == NULL
1681 && ((input_section->flags & SEC_DEBUGGING) != 0
1682 && (h->elf_link_hash_flags
1683 & ELF_LINK_HASH_DEF_DYNAMIC) != 0)))
1684 relocation = 0;
1685 else if (sec->output_section == NULL)
1686 {
1687 (*_bfd_error_handler)
1688 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
1689 bfd_get_filename (input_bfd), h->root.root.string,
1690 bfd_get_section_name (input_bfd, input_section));
1691 relocation = 0;
1692 }
1693 else
1694 relocation = ((h->root.u.def.value
1695 + sec->output_section->vma
1696 + sec->output_offset)
1697 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1698 symbol value, unless we've seen
1699 STT_DATALABEL on the way to it. */
1700 | ((h->other & STO_SH5_ISA32) != 0
1701 && ! seen_stt_datalabel));
1702 }
1703 else if (h->root.type == bfd_link_hash_undefweak)
1704 relocation = 0;
1705 else if (info->unresolved_syms_in_objects == RM_IGNORE
1706 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
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,
1713 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1714 || ELF_ST_VISIBILITY (h->other)))))
1715 return FALSE;
1716 relocation = 0;
1717 }
1718 }
1719
1720 disp = (relocation
1721 - input_section->output_section->vma
1722 - input_section->output_offset
1723 - rel->r_offset);
1724 dropped = 0;
1725 switch ((int)r_type)
1726 {
1727 case R_SH_PT_16: dropped = disp & 2; break;
1728 case R_SH_DIR10SW: dropped = disp & 1; break;
1729 case R_SH_DIR10SL: dropped = disp & 3; break;
1730 case R_SH_DIR10SQ: dropped = disp & 7; break;
1731 }
1732 if (dropped != 0)
1733 {
1734 (*_bfd_error_handler)
1735 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
1736 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation);
1737 bfd_set_error (bfd_error_bad_value);
1738 return FALSE;
1739 }
1740 switch ((int)r_type)
1741 {
1742 case R_SH_64:
1743 case R_SH_64_PCREL:
1744 if (info->shared
1745 && (input_section->flags & SEC_ALLOC) != 0
1746 && (r_type != R_SH_64_PCREL
1747 || (h != NULL
1748 && h->dynindx != -1
1749 && (! info->symbolic
1750 || (h->elf_link_hash_flags
1751 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
1752 {
1753 Elf_Internal_Rela outrel;
1754 bfd_byte *loc;
1755 bfd_boolean skip, relocate;
1756
1757 /* When generating a shared object, these relocations
1758 are copied into the output file to be resolved at run
1759 time. */
1760
1761 if (sreloc == NULL)
1762 {
1763 const char *name;
1764
1765 name = (bfd_elf_string_from_elf_section
1766 (input_bfd,
1767 elf_elfheader (input_bfd)->e_shstrndx,
1768 elf_section_data (input_section)->rel_hdr.sh_name));
1769 if (name == NULL)
1770 return FALSE;
1771
1772 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1773 && strcmp (bfd_get_section_name (input_bfd,
1774 input_section),
1775 name + 5) == 0);
1776
1777 sreloc = bfd_get_section_by_name (dynobj, name);
1778 BFD_ASSERT (sreloc != NULL);
1779 }
1780
1781 skip = FALSE;
1782 relocate = FALSE;
1783
1784 outrel.r_offset
1785 = _bfd_elf_section_offset (output_bfd, info,
1786 input_section, rel->r_offset);
1787
1788 if (outrel.r_offset == (bfd_vma) -1)
1789 skip = TRUE;
1790 else if (outrel.r_offset == (bfd_vma) -2)
1791 skip = TRUE, relocate = TRUE;
1792
1793 outrel.r_offset += (input_section->output_section->vma
1794 + input_section->output_offset);
1795
1796 if (skip)
1797 memset (&outrel, 0, sizeof outrel);
1798 else if (r_type == R_SH_64_PCREL)
1799 {
1800 BFD_ASSERT (h != NULL && h->dynindx != -1);
1801 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1802 outrel.r_addend = rel->r_addend;
1803 }
1804 else
1805 {
1806 /* h->dynindx may be -1 if this symbol was marked to
1807 become local. */
1808 if (h == NULL
1809 || ((info->symbolic || h->dynindx == -1)
1810 && (h->elf_link_hash_flags
1811 & ELF_LINK_HASH_DEF_REGULAR) != 0))
1812 {
1813 relocate = TRUE;
1814 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1815 outrel.r_addend = relocation + rel->r_addend;
1816 }
1817 else
1818 {
1819 BFD_ASSERT (h->dynindx != -1);
1820 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1821 outrel.r_addend = relocation + rel->r_addend;
1822 }
1823 }
1824
1825 loc = sreloc->contents;
1826 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1827 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1828
1829 /* If this reloc is against an external symbol, we do
1830 not want to fiddle with the addend. Otherwise, we
1831 need to include the symbol value so that it becomes
1832 an addend for the dynamic reloc. */
1833 if (! relocate)
1834 continue;
1835 }
1836 else if (r_type == R_SH_64)
1837 addend = rel->r_addend;
1838 goto final_link_relocate;
1839
1840 case R_SH_GOTPLT_LOW16:
1841 case R_SH_GOTPLT_MEDLOW16:
1842 case R_SH_GOTPLT_MEDHI16:
1843 case R_SH_GOTPLT_HI16:
1844 case R_SH_GOTPLT10BY4:
1845 case R_SH_GOTPLT10BY8:
1846 /* Relocation is to the entry for this symbol in the
1847 procedure linkage table. */
1848
1849 if (h == NULL
1850 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1851 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1852 || ! info->shared
1853 || info->symbolic
1854 || h->dynindx == -1
1855 || h->plt.offset == (bfd_vma) -1
1856 || h->got.offset != (bfd_vma) -1)
1857 goto force_got;
1858
1859 /* Relocation is to the entry for this symbol in the global
1860 offset table extension for the procedure linkage table. */
1861 if (sgotplt == NULL)
1862 {
1863 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1864 BFD_ASSERT (sgotplt != NULL);
1865 }
1866
1867 relocation = (sgotplt->output_offset
1868 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1869 - 1 + 3) * 8));
1870
1871 relocation -= GOT_BIAS;
1872
1873 goto final_link_relocate;
1874
1875 force_got:
1876 case R_SH_GOT_LOW16:
1877 case R_SH_GOT_MEDLOW16:
1878 case R_SH_GOT_MEDHI16:
1879 case R_SH_GOT_HI16:
1880 case R_SH_GOT10BY4:
1881 case R_SH_GOT10BY8:
1882 /* Relocation is to the entry for this symbol in the global
1883 offset table. */
1884 if (sgot == NULL)
1885 {
1886 sgot = bfd_get_section_by_name (dynobj, ".got");
1887 BFD_ASSERT (sgot != NULL);
1888 }
1889
1890 if (h != NULL)
1891 {
1892 bfd_vma off;
1893
1894 off = h->got.offset;
1895 if (seen_stt_datalabel)
1896 {
1897 struct elf_sh64_link_hash_entry *hsh;
1898
1899 hsh = (struct elf_sh64_link_hash_entry *)h;
1900 off = hsh->datalabel_got_offset;
1901 }
1902 BFD_ASSERT (off != (bfd_vma) -1);
1903
1904 if (! elf_hash_table (info)->dynamic_sections_created
1905 || (info->shared
1906 && (info->symbolic || h->dynindx == -1
1907 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1908 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1909 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
1910 {
1911 /* This is actually a static link, or it is a
1912 -Bsymbolic link and the symbol is defined
1913 locally, or the symbol was forced to be local
1914 because of a version file. We must initialize
1915 this entry in the global offset table. Since the
1916 offset must always be a multiple of 4, we use the
1917 least significant bit to record whether we have
1918 initialized it already.
1919
1920 When doing a dynamic link, we create a .rela.got
1921 relocation entry to initialize the value. This
1922 is done in the finish_dynamic_symbol routine. */
1923 if ((off & 1) != 0)
1924 off &= ~1;
1925 else
1926 {
1927 bfd_put_64 (output_bfd, relocation,
1928 sgot->contents + off);
1929 if (seen_stt_datalabel)
1930 {
1931 struct elf_sh64_link_hash_entry *hsh;
1932
1933 hsh = (struct elf_sh64_link_hash_entry *)h;
1934 hsh->datalabel_got_offset |= 1;
1935 }
1936 else
1937 h->got.offset |= 1;
1938 }
1939 }
1940
1941 relocation = sgot->output_offset + off;
1942 }
1943 else
1944 {
1945 bfd_vma off;
1946
1947 if (rel->r_addend)
1948 {
1949 BFD_ASSERT (local_got_offsets != NULL
1950 && (local_got_offsets[symtab_hdr->sh_info
1951 + r_symndx]
1952 != (bfd_vma) -1));
1953
1954 off = local_got_offsets[symtab_hdr->sh_info
1955 + r_symndx];
1956 }
1957 else
1958 {
1959 BFD_ASSERT (local_got_offsets != NULL
1960 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1961
1962 off = local_got_offsets[r_symndx];
1963 }
1964
1965 /* The offset must always be a multiple of 8. We use
1966 the least significant bit to record whether we have
1967 already generated the necessary reloc. */
1968 if ((off & 1) != 0)
1969 off &= ~1;
1970 else
1971 {
1972 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1973
1974 if (info->shared)
1975 {
1976 asection *s;
1977 Elf_Internal_Rela outrel;
1978 bfd_byte *loc;
1979
1980 s = bfd_get_section_by_name (dynobj, ".rela.got");
1981 BFD_ASSERT (s != NULL);
1982
1983 outrel.r_offset = (sgot->output_section->vma
1984 + sgot->output_offset
1985 + off);
1986 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1987 outrel.r_addend = relocation;
1988 loc = s->contents;
1989 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1990 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1991 }
1992
1993 if (rel->r_addend)
1994 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1995 else
1996 local_got_offsets[r_symndx] |= 1;
1997 }
1998
1999 relocation = sgot->output_offset + off;
2000 }
2001
2002 relocation -= GOT_BIAS;
2003
2004 goto final_link_relocate;
2005
2006 case R_SH_GOTOFF_LOW16:
2007 case R_SH_GOTOFF_MEDLOW16:
2008 case R_SH_GOTOFF_MEDHI16:
2009 case R_SH_GOTOFF_HI16:
2010 /* Relocation is relative to the start of the global offset
2011 table. */
2012
2013 if (sgot == NULL)
2014 {
2015 sgot = bfd_get_section_by_name (dynobj, ".got");
2016 BFD_ASSERT (sgot != NULL);
2017 }
2018
2019 /* Note that sgot->output_offset is not involved in this
2020 calculation. We always want the start of .got. If we
2021 defined _GLOBAL_OFFSET_TABLE in a different way, as is
2022 permitted by the ABI, we might have to change this
2023 calculation. */
2024 relocation -= sgot->output_section->vma;
2025
2026 relocation -= GOT_BIAS;
2027
2028 addend = rel->r_addend;
2029
2030 goto final_link_relocate;
2031
2032 case R_SH_GOTPC_LOW16:
2033 case R_SH_GOTPC_MEDLOW16:
2034 case R_SH_GOTPC_MEDHI16:
2035 case R_SH_GOTPC_HI16:
2036 /* Use global offset table as symbol value. */
2037
2038 if (sgot == NULL)
2039 {
2040 sgot = bfd_get_section_by_name (dynobj, ".got");
2041 BFD_ASSERT (sgot != NULL);
2042 }
2043
2044 relocation = sgot->output_section->vma;
2045
2046 relocation += GOT_BIAS;
2047
2048 addend = rel->r_addend;
2049
2050 goto final_link_relocate;
2051
2052 case R_SH_PLT_LOW16:
2053 case R_SH_PLT_MEDLOW16:
2054 case R_SH_PLT_MEDHI16:
2055 case R_SH_PLT_HI16:
2056 /* Relocation is to the entry for this symbol in the
2057 procedure linkage table. */
2058
2059 /* Resolve a PLT reloc against a local symbol directly,
2060 without using the procedure linkage table. */
2061 if (h == NULL)
2062 goto final_link_relocate;
2063
2064 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2065 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2066 goto final_link_relocate;
2067
2068 if (h->plt.offset == (bfd_vma) -1)
2069 {
2070 /* We didn't make a PLT entry for this symbol. This
2071 happens when statically linking PIC code, or when
2072 using -Bsymbolic. */
2073 goto final_link_relocate;
2074 }
2075
2076 if (splt == NULL)
2077 {
2078 splt = bfd_get_section_by_name (dynobj, ".plt");
2079 BFD_ASSERT (splt != NULL);
2080 }
2081
2082 relocation = (splt->output_section->vma
2083 + splt->output_offset
2084 + h->plt.offset);
2085 relocation++;
2086
2087 addend = rel->r_addend;
2088
2089 goto final_link_relocate;
2090
2091 case R_SH_DIR32:
2092 case R_SH_SHMEDIA_CODE:
2093 case R_SH_PT_16:
2094 case R_SH_DIR5U:
2095 case R_SH_DIR6S:
2096 case R_SH_DIR6U:
2097 case R_SH_DIR10S:
2098 case R_SH_DIR10SW:
2099 case R_SH_DIR10SL:
2100 case R_SH_DIR10SQ:
2101 case R_SH_IMMS16:
2102 case R_SH_IMMU16:
2103 case R_SH_IMM_LOW16:
2104 case R_SH_IMM_LOW16_PCREL:
2105 case R_SH_IMM_MEDLOW16:
2106 case R_SH_IMM_MEDLOW16_PCREL:
2107 case R_SH_IMM_MEDHI16:
2108 case R_SH_IMM_MEDHI16_PCREL:
2109 case R_SH_IMM_HI16:
2110 case R_SH_IMM_HI16_PCREL:
2111 addend = rel->r_addend;
2112 /* Fall through. */
2113 case R_SH_REL32:
2114 final_link_relocate:
2115 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2116 contents, rel->r_offset,
2117 relocation, addend);
2118 break;
2119
2120 default:
2121 bfd_set_error (bfd_error_bad_value);
2122 return FALSE;
2123
2124 }
2125
2126 if (r != bfd_reloc_ok)
2127 {
2128 switch (r)
2129 {
2130 default:
2131 case bfd_reloc_outofrange:
2132 abort ();
2133 case bfd_reloc_overflow:
2134 {
2135 const char *name;
2136
2137 if (h != NULL)
2138 name = h->root.root.string;
2139 else
2140 {
2141 name = (bfd_elf_string_from_elf_section
2142 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2143 if (name == NULL)
2144 return FALSE;
2145 if (*name == '\0')
2146 name = bfd_section_name (input_bfd, sec);
2147 }
2148 if (! ((*info->callbacks->reloc_overflow)
2149 (info, name, howto->name, (bfd_vma) 0,
2150 input_bfd, input_section, rel->r_offset)))
2151 return FALSE;
2152 }
2153 break;
2154 }
2155 }
2156 }
2157
2158 return TRUE;
2159 }
2160
2161 /* This is a version of bfd_generic_get_relocated_section_contents
2162 that uses sh_elf64_relocate_section.
2163
2164 See sh_elf_relocate_section in elf32-sh.c for the original. */
2165
2166 static bfd_byte *
2167 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2168 struct bfd_link_info *link_info,
2169 struct bfd_link_order *link_order,
2170 bfd_byte *data,
2171 bfd_boolean relocatable,
2172 asymbol **symbols)
2173 {
2174 Elf_Internal_Shdr *symtab_hdr;
2175 asection *input_section = link_order->u.indirect.section;
2176 bfd *input_bfd = input_section->owner;
2177 asection **sections = NULL;
2178 Elf_Internal_Rela *internal_relocs = NULL;
2179 Elf_Internal_Sym *isymbuf = NULL;
2180
2181 /* We only need to handle the case of relaxing, or of having a
2182 particular set of section contents, specially. */
2183 if (relocatable
2184 || elf_section_data (input_section)->this_hdr.contents == NULL)
2185 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2186 link_order, data,
2187 relocatable,
2188 symbols);
2189
2190 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2191
2192 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2193 input_section->size);
2194
2195 if ((input_section->flags & SEC_RELOC) != 0
2196 && input_section->reloc_count > 0)
2197 {
2198 Elf_Internal_Sym *isymp;
2199 Elf_Internal_Sym *isymend;
2200 asection **secpp;
2201
2202 /* Read this BFD's local symbols. */
2203 if (symtab_hdr->sh_info != 0)
2204 {
2205 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2206 if (isymbuf == NULL)
2207 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2208 symtab_hdr->sh_info, 0,
2209 NULL, NULL, NULL);
2210 if (isymbuf == NULL)
2211 goto error_return;
2212 }
2213
2214 internal_relocs = (_bfd_elf_link_read_relocs
2215 (input_bfd, input_section, NULL,
2216 (Elf_Internal_Rela *) NULL, FALSE));
2217 if (internal_relocs == NULL)
2218 goto error_return;
2219
2220 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2221 * sizeof (asection *));
2222 if (sections == NULL && symtab_hdr->sh_info > 0)
2223 goto error_return;
2224
2225 secpp = sections;
2226 isymend = isymbuf + symtab_hdr->sh_info;
2227 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2228 {
2229 asection *isec;
2230
2231 if (isymp->st_shndx == SHN_UNDEF)
2232 isec = bfd_und_section_ptr;
2233 else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
2234 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2235 else if (isymp->st_shndx == SHN_ABS)
2236 isec = bfd_abs_section_ptr;
2237 else if (isymp->st_shndx == SHN_COMMON)
2238 isec = bfd_com_section_ptr;
2239 else
2240 {
2241 /* Who knows? */
2242 isec = NULL;
2243 }
2244
2245 *secpp = isec;
2246 }
2247
2248 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2249 input_section, data, internal_relocs,
2250 isymbuf, sections))
2251 goto error_return;
2252
2253 if (sections != NULL)
2254 free (sections);
2255 if (internal_relocs != elf_section_data (input_section)->relocs)
2256 free (internal_relocs);
2257 if (isymbuf != NULL
2258 && (unsigned char *) isymbuf != symtab_hdr->contents)
2259 free (isymbuf);
2260 }
2261
2262 return data;
2263
2264 error_return:
2265 if (sections != NULL)
2266 free (sections);
2267 if (internal_relocs != NULL
2268 && internal_relocs != elf_section_data (input_section)->relocs)
2269 free (internal_relocs);
2270 if (isymbuf != NULL
2271 && (unsigned char *) isymbuf != symtab_hdr->contents)
2272 free (isymbuf);
2273 return NULL;
2274 }
2275
2276 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2277
2278 bfd_boolean
2279 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2280 Elf_Internal_Shdr *elf_section_hdr,
2281 asection *asect)
2282 {
2283 /* Code sections can only contain SH64 code, so mark them as such. */
2284 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2285 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2286
2287 return TRUE;
2288 }
2289
2290 static bfd_boolean
2291 sh_elf64_set_mach_from_flags (bfd *abfd)
2292 {
2293 flagword flags = elf_elfheader (abfd)->e_flags;
2294
2295 switch (flags & EF_SH_MACH_MASK)
2296 {
2297 case EF_SH5:
2298 /* Just one, but keep the switch construct to make additions easy. */
2299 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2300 break;
2301
2302 default:
2303 bfd_set_error (bfd_error_wrong_format);
2304 return FALSE;
2305 }
2306 return TRUE;
2307 }
2308
2309 /* Function to keep SH64 specific file flags.
2310
2311 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2312
2313 static bfd_boolean
2314 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2315 {
2316 BFD_ASSERT (! elf_flags_init (abfd)
2317 || elf_elfheader (abfd)->e_flags == flags);
2318
2319 elf_elfheader (abfd)->e_flags = flags;
2320 elf_flags_init (abfd) = TRUE;
2321 return sh_elf64_set_mach_from_flags (abfd);
2322 }
2323
2324 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2325 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2326
2327 static bfd_boolean
2328 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2329 {
2330 Elf_Internal_Shdr **o_shdrp;
2331 asection *isec;
2332 asection *osec;
2333
2334 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2335 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2336 return TRUE;
2337
2338 o_shdrp = elf_elfsections (obfd);
2339 for (osec = obfd->sections; osec; osec = osec->next)
2340 {
2341 int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx;
2342 for (isec = ibfd->sections; isec; isec = isec->next)
2343 {
2344 if (strcmp (osec->name, isec->name) == 0)
2345 {
2346 /* Note that we're not disallowing mixing data and code. */
2347 if ((elf_section_data (isec)->this_hdr.sh_flags
2348 & SHF_SH5_ISA32) != 0)
2349 o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32;
2350 break;
2351 }
2352 }
2353 }
2354
2355 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2356 }
2357
2358 static bfd_boolean
2359 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2360 {
2361 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2362 }
2363
2364 static bfd_boolean
2365 sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd)
2366 {
2367 flagword old_flags, new_flags;
2368
2369 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
2370 return FALSE;
2371
2372 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2373 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2374 return TRUE;
2375
2376 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2377 {
2378 const char *msg;
2379
2380 if (bfd_get_arch_size (ibfd) == 32
2381 && bfd_get_arch_size (obfd) == 64)
2382 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
2383 else if (bfd_get_arch_size (ibfd) == 64
2384 && bfd_get_arch_size (obfd) == 32)
2385 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
2386 else
2387 msg = _("%s: object size does not match that of target %s");
2388
2389 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
2390 bfd_get_filename (obfd));
2391 bfd_set_error (bfd_error_wrong_format);
2392 return FALSE;
2393 }
2394
2395 old_flags = elf_elfheader (obfd)->e_flags;
2396 new_flags = elf_elfheader (ibfd)->e_flags;
2397 if (! elf_flags_init (obfd))
2398 {
2399 /* This happens when ld starts out with a 'blank' output file. */
2400 elf_flags_init (obfd) = TRUE;
2401 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2402 }
2403 /* We don't allow linking in anything else than SH64 code, and since
2404 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2405 here as things change. */
2406 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2407 {
2408 (*_bfd_error_handler)
2409 ("%s: does not use the SH64 64-bit ABI as previous modules do",
2410 bfd_get_filename (ibfd));
2411 bfd_set_error (bfd_error_bad_value);
2412 return FALSE;
2413 }
2414
2415 sh_elf64_copy_private_data_internal (ibfd, obfd);
2416
2417 /* I can't think of anything sane other than old_flags being EF_SH5 and
2418 that we need to preserve that. */
2419 elf_elfheader (obfd)->e_flags = old_flags;
2420
2421 return sh_elf64_set_mach_from_flags (obfd);
2422 }
2423
2424 /* Return the section that should be marked against GC for a given
2425 relocation. */
2426
2427 static asection *
2428 sh_elf64_gc_mark_hook (asection *sec,
2429 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2430 Elf_Internal_Rela *rel,
2431 struct elf_link_hash_entry *h,
2432 Elf_Internal_Sym *sym)
2433 {
2434 if (h != NULL)
2435 {
2436 switch (ELF64_R_TYPE (rel->r_info))
2437 {
2438 case R_SH_GNU_VTINHERIT:
2439 case R_SH_GNU_VTENTRY:
2440 break;
2441
2442 default:
2443 while (h->root.type == bfd_link_hash_indirect
2444 && h->root.u.i.link)
2445 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2446 switch (h->root.type)
2447 {
2448 case bfd_link_hash_defined:
2449 case bfd_link_hash_defweak:
2450 return h->root.u.def.section;
2451
2452 case bfd_link_hash_common:
2453 return h->root.u.c.p->section;
2454
2455 default:
2456 break;
2457 }
2458 }
2459 }
2460 else
2461 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
2462
2463 return NULL;
2464 }
2465
2466 /* Update the got entry reference counts for the section being removed. */
2467
2468 static bfd_boolean
2469 sh_elf64_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
2470 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2471 asection *sec ATTRIBUTE_UNUSED,
2472 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
2473 {
2474 /* No got and plt entries for 64-bit SH at present. */
2475 return TRUE;
2476 }
2477
2478 /* Look through the relocs for a section during the first phase.
2479 Since we don't do .gots or .plts, we just need to consider the
2480 virtual table relocs for gc. */
2481
2482 static bfd_boolean
2483 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2484 asection *sec, const Elf_Internal_Rela *relocs)
2485 {
2486 Elf_Internal_Shdr *symtab_hdr;
2487 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
2488 const Elf_Internal_Rela *rel;
2489 const Elf_Internal_Rela *rel_end;
2490 bfd *dynobj;
2491 bfd_vma *local_got_offsets;
2492 asection *sgot;
2493 asection *srelgot;
2494 asection *sreloc;
2495
2496 sgot = NULL;
2497 srelgot = NULL;
2498 sreloc = NULL;
2499
2500 if (info->relocatable)
2501 return TRUE;
2502
2503 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2504 sym_hashes = elf_sym_hashes (abfd);
2505 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym);
2506 if (!elf_bad_symtab (abfd))
2507 sym_hashes_end -= symtab_hdr->sh_info;
2508
2509 dynobj = elf_hash_table (info)->dynobj;
2510 local_got_offsets = elf_local_got_offsets (abfd);
2511
2512 rel_end = relocs + sec->reloc_count;
2513 for (rel = relocs; rel < rel_end; rel++)
2514 {
2515 struct elf_link_hash_entry *h;
2516 unsigned long r_symndx;
2517
2518 r_symndx = ELF64_R_SYM (rel->r_info);
2519 if (r_symndx < symtab_hdr->sh_info)
2520 h = NULL;
2521 else
2522 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2523
2524 /* Some relocs require a global offset table. */
2525 if (dynobj == NULL)
2526 {
2527 switch (ELF64_R_TYPE (rel->r_info))
2528 {
2529 case R_SH_GOTPLT_LOW16:
2530 case R_SH_GOTPLT_MEDLOW16:
2531 case R_SH_GOTPLT_MEDHI16:
2532 case R_SH_GOTPLT_HI16:
2533 case R_SH_GOTPLT10BY4:
2534 case R_SH_GOTPLT10BY8:
2535 case R_SH_GOT_LOW16:
2536 case R_SH_GOT_MEDLOW16:
2537 case R_SH_GOT_MEDHI16:
2538 case R_SH_GOT_HI16:
2539 case R_SH_GOT10BY4:
2540 case R_SH_GOT10BY8:
2541 case R_SH_GOTOFF_LOW16:
2542 case R_SH_GOTOFF_MEDLOW16:
2543 case R_SH_GOTOFF_MEDHI16:
2544 case R_SH_GOTOFF_HI16:
2545 case R_SH_GOTPC_LOW16:
2546 case R_SH_GOTPC_MEDLOW16:
2547 case R_SH_GOTPC_MEDHI16:
2548 case R_SH_GOTPC_HI16:
2549 elf_hash_table (info)->dynobj = dynobj = abfd;
2550 if (! _bfd_elf_create_got_section (dynobj, info))
2551 return FALSE;
2552 break;
2553
2554 default:
2555 break;
2556 }
2557 }
2558
2559 switch (ELF64_R_TYPE (rel->r_info))
2560 {
2561 /* This relocation describes the C++ object vtable hierarchy.
2562 Reconstruct it for later use during GC. */
2563 case R_SH_GNU_VTINHERIT:
2564 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2565 return FALSE;
2566 break;
2567
2568 /* This relocation describes which C++ vtable entries are actually
2569 used. Record for later use during GC. */
2570 case R_SH_GNU_VTENTRY:
2571 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2572 return FALSE;
2573 break;
2574
2575 force_got:
2576 case R_SH_GOT_LOW16:
2577 case R_SH_GOT_MEDLOW16:
2578 case R_SH_GOT_MEDHI16:
2579 case R_SH_GOT_HI16:
2580 case R_SH_GOT10BY4:
2581 case R_SH_GOT10BY8:
2582 /* This symbol requires a global offset table entry. */
2583
2584 if (sgot == NULL)
2585 {
2586 sgot = bfd_get_section_by_name (dynobj, ".got");
2587 BFD_ASSERT (sgot != NULL);
2588 }
2589
2590 if (srelgot == NULL
2591 && (h != NULL || info->shared))
2592 {
2593 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2594 if (srelgot == NULL)
2595 {
2596 srelgot = bfd_make_section (dynobj, ".rela.got");
2597 if (srelgot == NULL
2598 || ! bfd_set_section_flags (dynobj, srelgot,
2599 (SEC_ALLOC
2600 | SEC_LOAD
2601 | SEC_HAS_CONTENTS
2602 | SEC_IN_MEMORY
2603 | SEC_LINKER_CREATED
2604 | SEC_READONLY))
2605 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
2606 return FALSE;
2607 }
2608 }
2609
2610 if (h != NULL)
2611 {
2612 if (h->type == STT_DATALABEL)
2613 {
2614 struct elf_sh64_link_hash_entry *hsh;
2615
2616 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2617 hsh = (struct elf_sh64_link_hash_entry *)h;
2618 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2619 break;
2620
2621 hsh->datalabel_got_offset = sgot->size;
2622 }
2623 else
2624 {
2625 if (h->got.offset != (bfd_vma) -1)
2626 {
2627 /* We have already allocated space in the .got. */
2628 break;
2629 }
2630 h->got.offset = sgot->size;
2631 }
2632
2633 /* Make sure this symbol is output as a dynamic symbol. */
2634 if (h->dynindx == -1)
2635 {
2636 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2637 return FALSE;
2638 }
2639
2640 srelgot->size += sizeof (Elf64_External_Rela);
2641 }
2642 else
2643 {
2644 /* This is a global offset table entry for a local
2645 symbol. */
2646 if (local_got_offsets == NULL)
2647 {
2648 size_t size;
2649 register unsigned int i;
2650
2651 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2652 /* Reserve space for both the datalabel and
2653 codelabel local GOT offsets. */
2654 size *= 2;
2655 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2656 if (local_got_offsets == NULL)
2657 return FALSE;
2658 elf_local_got_offsets (abfd) = local_got_offsets;
2659 for (i = 0; i < symtab_hdr->sh_info; i++)
2660 local_got_offsets[i] = (bfd_vma) -1;
2661 for (; i < 2 * symtab_hdr->sh_info; i++)
2662 local_got_offsets[i] = (bfd_vma) -1;
2663 }
2664 if ((rel->r_addend & 1) != 0)
2665 {
2666 if (local_got_offsets[symtab_hdr->sh_info
2667 + r_symndx] != (bfd_vma) -1)
2668 {
2669 /* We have already allocated space in the .got. */
2670 break;
2671 }
2672 local_got_offsets[symtab_hdr->sh_info
2673 + r_symndx] = sgot->size;
2674 }
2675 else
2676 {
2677 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2678 {
2679 /* We have already allocated space in the .got. */
2680 break;
2681 }
2682 local_got_offsets[r_symndx] = sgot->size;
2683 }
2684
2685 if (info->shared)
2686 {
2687 /* If we are generating a shared object, we need to
2688 output a R_SH_RELATIVE reloc so that the dynamic
2689 linker can adjust this GOT entry. */
2690 srelgot->size += sizeof (Elf64_External_Rela);
2691 }
2692 }
2693
2694 sgot->size += 8;
2695
2696 break;
2697
2698 case R_SH_GOTPLT_LOW16:
2699 case R_SH_GOTPLT_MEDLOW16:
2700 case R_SH_GOTPLT_MEDHI16:
2701 case R_SH_GOTPLT_HI16:
2702 case R_SH_GOTPLT10BY4:
2703 case R_SH_GOTPLT10BY8:
2704 /* If this is a local symbol, we resolve it directly without
2705 creating a procedure linkage table entry. */
2706
2707 if (h == NULL
2708 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2709 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2710 || ! info->shared
2711 || info->symbolic
2712 || h->dynindx == -1
2713 || h->got.offset != (bfd_vma) -1)
2714 goto force_got;
2715
2716 /* Make sure this symbol is output as a dynamic symbol. */
2717 if (h->dynindx == -1)
2718 {
2719 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2720 return FALSE;
2721 }
2722
2723 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2724
2725 break;
2726
2727 case R_SH_PLT_LOW16:
2728 case R_SH_PLT_MEDLOW16:
2729 case R_SH_PLT_MEDHI16:
2730 case R_SH_PLT_HI16:
2731 /* This symbol requires a procedure linkage table entry. We
2732 actually build the entry in adjust_dynamic_symbol,
2733 because this might be a case of linking PIC code which is
2734 never referenced by a dynamic object, in which case we
2735 don't need to generate a procedure linkage table entry
2736 after all. */
2737
2738 /* If this is a local symbol, we resolve it directly without
2739 creating a procedure linkage table entry. */
2740 if (h == NULL)
2741 continue;
2742
2743 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2744 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2745 break;
2746
2747 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2748
2749 break;
2750
2751 case R_SH_64:
2752 case R_SH_64_PCREL:
2753 if (h != NULL)
2754 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
2755
2756 /* If we are creating a shared library, and this is a reloc
2757 against a global symbol, or a non PC relative reloc
2758 against a local symbol, then we need to copy the reloc
2759 into the shared library. However, if we are linking with
2760 -Bsymbolic, we do not need to copy a reloc against a
2761 global symbol which is defined in an object we are
2762 including in the link (i.e., DEF_REGULAR is set). At
2763 this point we have not seen all the input files, so it is
2764 possible that DEF_REGULAR is not set now but will be set
2765 later (it is never cleared). We account for that
2766 possibility below by storing information in the
2767 pcrel_relocs_copied field of the hash table entry. */
2768 if (info->shared
2769 && (sec->flags & SEC_ALLOC) != 0
2770 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2771 || (h != NULL
2772 && (! info->symbolic
2773 || (h->elf_link_hash_flags
2774 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
2775 {
2776 /* When creating a shared object, we must copy these
2777 reloc types into the output file. We create a reloc
2778 section in dynobj and make room for this reloc. */
2779 if (sreloc == NULL)
2780 {
2781 const char *name;
2782
2783 name = (bfd_elf_string_from_elf_section
2784 (abfd,
2785 elf_elfheader (abfd)->e_shstrndx,
2786 elf_section_data (sec)->rel_hdr.sh_name));
2787 if (name == NULL)
2788 return FALSE;
2789
2790 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2791 && strcmp (bfd_get_section_name (abfd, sec),
2792 name + 5) == 0);
2793
2794 sreloc = bfd_get_section_by_name (dynobj, name);
2795 if (sreloc == NULL)
2796 {
2797 flagword flags;
2798
2799 sreloc = bfd_make_section (dynobj, name);
2800 flags = (SEC_HAS_CONTENTS | SEC_READONLY
2801 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2802 if ((sec->flags & SEC_ALLOC) != 0)
2803 flags |= SEC_ALLOC | SEC_LOAD;
2804 if (sreloc == NULL
2805 || ! bfd_set_section_flags (dynobj, sreloc, flags)
2806 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
2807 return FALSE;
2808 }
2809 }
2810
2811 sreloc->size += sizeof (Elf64_External_Rela);
2812
2813 /* If we are linking with -Bsymbolic, and this is a
2814 global symbol, we count the number of PC relative
2815 relocations we have entered for this symbol, so that
2816 we can discard them again if the symbol is later
2817 defined by a regular object. Note that this function
2818 is only called if we are using an elf_sh linker
2819 hash table, which means that h is really a pointer to
2820 an elf_sh_link_hash_entry. */
2821 if (h != NULL && info->symbolic
2822 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2823 {
2824 struct elf_sh64_link_hash_entry *eh;
2825 struct elf_sh64_pcrel_relocs_copied *p;
2826
2827 eh = (struct elf_sh64_link_hash_entry *) h;
2828
2829 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2830 if (p->section == sreloc)
2831 break;
2832
2833 if (p == NULL)
2834 {
2835 p = ((struct elf_sh64_pcrel_relocs_copied *)
2836 bfd_alloc (dynobj, sizeof *p));
2837 if (p == NULL)
2838 return FALSE;
2839 p->next = eh->pcrel_relocs_copied;
2840 eh->pcrel_relocs_copied = p;
2841 p->section = sreloc;
2842 p->count = 0;
2843 }
2844
2845 ++p->count;
2846 }
2847 }
2848
2849 break;
2850 }
2851 }
2852
2853 return TRUE;
2854 }
2855
2856 static int
2857 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2858 {
2859 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2860 return STT_DATALABEL;
2861
2862 return type;
2863 }
2864
2865 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2866 Either file can presumably exist without the other, but do not differ
2867 in elf-size-ness. How to share?
2868
2869 Hook called by the linker routine which adds symbols from an object
2870 file. We must make indirect symbols for undefined symbols marked with
2871 STT_DATALABEL, so relocations passing them will pick up that attribute
2872 and neutralize STO_SH5_ISA32 found on the symbol definition.
2873
2874 There is a problem, though: We want to fill in the hash-table entry for
2875 this symbol and signal to the caller that no further processing is
2876 needed. But we don't have the index for this hash-table entry. We
2877 rely here on that the current entry is the first hash-entry with NULL,
2878 which seems brittle. Also, iterating over the hash-table to find that
2879 entry is a linear operation on the number of symbols in this input
2880 file, and this function should take constant time, so that's not good
2881 too. Only comfort is that DataLabel references should only be found in
2882 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2883 into adding an option to elf_add_symbol_hook (preferably) for the index
2884 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2885 (not so good). */
2886
2887 static bfd_boolean
2888 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2889 Elf_Internal_Sym *sym, const char **namep,
2890 flagword *flagsp ATTRIBUTE_UNUSED,
2891 asection **secp, bfd_vma *valp)
2892 {
2893 /* We want to do this for relocatable as well as final linking. */
2894 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2895 && is_elf_hash_table (info->hash))
2896 {
2897 struct elf_link_hash_entry *h;
2898
2899 /* For relocatable links, we register the DataLabel sym in its own
2900 right, and tweak the name when it's output. Otherwise, we make
2901 an indirect symbol of it. */
2902 flagword flags
2903 = info->relocatable || info->emitrelocations
2904 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2905
2906 char *dl_name
2907 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2908 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2909
2910 BFD_ASSERT (sym_hash != NULL);
2911
2912 /* Allocation may fail. */
2913 if (dl_name == NULL)
2914 return FALSE;
2915
2916 strcpy (dl_name, *namep);
2917 strcat (dl_name, DATALABEL_SUFFIX);
2918
2919 h = (struct elf_link_hash_entry *)
2920 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2921
2922 if (h == NULL)
2923 {
2924 /* No previous datalabel symbol. Make one. */
2925 struct bfd_link_hash_entry *bh = NULL;
2926 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2927
2928 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2929 flags, *secp, *valp,
2930 *namep, FALSE,
2931 bed->collect, &bh))
2932 {
2933 free (dl_name);
2934 return FALSE;
2935 }
2936
2937 h = (struct elf_link_hash_entry *) bh;
2938 h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF;
2939 h->type = STT_DATALABEL;
2940 }
2941 else
2942 /* If a new symbol was created, it holds the allocated name.
2943 Otherwise, we don't need it anymore and should deallocate it. */
2944 free (dl_name);
2945
2946 if (h->type != STT_DATALABEL
2947 || ((info->relocatable || info->emitrelocations)
2948 && h->root.type != bfd_link_hash_undefined)
2949 || (! info->relocatable && !info->emitrelocations
2950 && h->root.type != bfd_link_hash_indirect))
2951 {
2952 /* Make sure we don't get confused on invalid input. */
2953 (*_bfd_error_handler)
2954 (_("%s: encountered datalabel symbol in input"),
2955 bfd_get_filename (abfd));
2956 bfd_set_error (bfd_error_bad_value);
2957 return FALSE;
2958 }
2959
2960 /* Now find the hash-table slot for this entry and fill it in. */
2961 while (*sym_hash != NULL)
2962 sym_hash++;
2963 *sym_hash = h;
2964
2965 /* Signal to caller to skip this symbol - we've handled it. */
2966 *namep = NULL;
2967 }
2968
2969 return TRUE;
2970 }
2971
2972 /* This hook function is called before the linker writes out a global
2973 symbol. For relocatable links, DataLabel symbols will be present in
2974 linker output. We cut off the special suffix on those symbols, so the
2975 right name appears in the output.
2976
2977 When linking and emitting relocations, there can appear global symbols
2978 that are not referenced by relocs, but rather only implicitly through
2979 DataLabel references, a relation that is not visible to the linker.
2980 Since no stripping of global symbols in done when doing such linking,
2981 we don't need to look up and make sure to emit the main symbol for each
2982 DataLabel symbol. */
2983
2984 static bfd_boolean
2985 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2986 const char *cname,
2987 Elf_Internal_Sym *sym,
2988 asection *input_sec ATTRIBUTE_UNUSED,
2989 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2990 {
2991 char *name = (char *) cname;
2992
2993 if (info->relocatable || info->emitrelocations)
2994 {
2995 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2996 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2997 }
2998
2999 return TRUE;
3000 }
3001
3002 /* Set bit 0 on the entry address; it always points to SHmedia code. This
3003 is mostly for symmetry with the 32-bit format, where code can be
3004 SHcompact and we need to make a distinction to make sure execution
3005 starts in the right ISA mode. It is also convenient for a loader,
3006 which would otherwise have to set this bit when loading a TR register
3007 before jumping to the program entry. */
3008
3009 static void
3010 sh64_elf64_final_write_processing (bfd *abfd,
3011 bfd_boolean linker ATTRIBUTE_UNUSED)
3012 {
3013 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
3014 numerically, but we currently lack the infrastructure to recognize
3015 that: The entry symbol, and info whether it is numeric or a symbol
3016 name is kept private in the linker. */
3017 if (elf_elfheader (abfd)->e_type == ET_EXEC)
3018 elf_elfheader (abfd)->e_entry |= 1;
3019 }
3020
3021 /* First entry in an absolute procedure linkage table look like this. */
3022
3023 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
3024 {
3025 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
3026 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
3027 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
3028 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
3029 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3030 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3031 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3032 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
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 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3040 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3041 };
3042
3043 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
3044 {
3045 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
3046 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
3047 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
3048 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
3049 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3050 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3051 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3052 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
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 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3060 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3061 };
3062
3063 /* Sebsequent entries in an absolute procedure linkage table look like
3064 this. */
3065
3066 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
3067 {
3068 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
3069 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
3070 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
3071 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
3072 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
3073 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3074 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3075 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3076 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
3077 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
3078 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
3079 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3080 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3081 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3082 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3083 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3084 };
3085
3086 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
3087 {
3088 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
3089 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3090 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3091 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3092 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
3093 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3094 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3095 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3096 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
3097 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
3098 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
3099 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3100 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3101 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3102 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3103 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3104 };
3105
3106 /* Entries in a PIC procedure linkage table look like this. */
3107
3108 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3109 {
3110 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
3111 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
3112 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
3113 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3114 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3115 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3116 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3117 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3118 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3119 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
3120 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3121 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3122 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3123 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3124 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3125 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3126 };
3127
3128 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3129 {
3130 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3131 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3132 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
3133 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3134 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3135 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3136 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3137 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3138 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3139 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
3140 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3141 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3142 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3143 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3144 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3145 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3146 };
3147
3148 static const bfd_byte *elf_sh64_plt0_entry;
3149 static const bfd_byte *elf_sh64_plt_entry;
3150 static const bfd_byte *elf_sh64_pic_plt_entry;
3151
3152 /* Create an entry in an sh ELF linker hash table. */
3153
3154 static struct bfd_hash_entry *
3155 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
3156 struct bfd_hash_table *table,
3157 const char *string)
3158 {
3159 struct elf_sh64_link_hash_entry *ret =
3160 (struct elf_sh64_link_hash_entry *) entry;
3161
3162 /* Allocate the structure if it has not already been allocated by a
3163 subclass. */
3164 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3165 ret = ((struct elf_sh64_link_hash_entry *)
3166 bfd_hash_allocate (table,
3167 sizeof (struct elf_sh64_link_hash_entry)));
3168 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3169 return (struct bfd_hash_entry *) ret;
3170
3171 /* Call the allocation method of the superclass. */
3172 ret = ((struct elf_sh64_link_hash_entry *)
3173 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3174 table, string));
3175 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3176 {
3177 ret->pcrel_relocs_copied = NULL;
3178 ret->datalabel_got_offset = (bfd_vma) -1;
3179 }
3180
3181 return (struct bfd_hash_entry *) ret;
3182 }
3183
3184 /* Create an sh64 ELF linker hash table. */
3185
3186 static struct bfd_link_hash_table *
3187 sh64_elf64_link_hash_table_create (bfd *abfd)
3188 {
3189 struct elf_sh64_link_hash_table *ret;
3190
3191 ret = ((struct elf_sh64_link_hash_table *)
3192 bfd_malloc (sizeof (struct elf_sh64_link_hash_table)));
3193 if (ret == (struct elf_sh64_link_hash_table *) NULL)
3194 return NULL;
3195
3196 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
3197 sh64_elf64_link_hash_newfunc))
3198 {
3199 free (ret);
3200 return NULL;
3201 }
3202
3203 return &ret->root.root;
3204 }
3205
3206 inline static void
3207 movi_shori_putval (bfd *output_bfd, unsigned long value, char *addr)
3208 {
3209 bfd_put_32 (output_bfd,
3210 bfd_get_32 (output_bfd, addr)
3211 | ((value >> 6) & 0x3fffc00),
3212 addr);
3213 bfd_put_32 (output_bfd,
3214 bfd_get_32 (output_bfd, addr + 4)
3215 | ((value << 10) & 0x3fffc00),
3216 addr + 4);
3217 }
3218
3219 inline static void
3220 movi_3shori_putval (bfd *output_bfd, bfd_vma value, char *addr)
3221 {
3222 bfd_put_32 (output_bfd,
3223 bfd_get_32 (output_bfd, addr)
3224 | ((value >> 38) & 0x3fffc00),
3225 addr);
3226 bfd_put_32 (output_bfd,
3227 bfd_get_32 (output_bfd, addr + 4)
3228 | ((value >> 22) & 0x3fffc00),
3229 addr + 4);
3230 bfd_put_32 (output_bfd,
3231 bfd_get_32 (output_bfd, addr + 8)
3232 | ((value >> 6) & 0x3fffc00),
3233 addr + 8);
3234 bfd_put_32 (output_bfd,
3235 bfd_get_32 (output_bfd, addr + 12)
3236 | ((value << 10) & 0x3fffc00),
3237 addr + 12);
3238 }
3239
3240 /* Create dynamic sections when linking against a dynamic object. */
3241
3242 static bfd_boolean
3243 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3244 {
3245 flagword flags, pltflags;
3246 register asection *s;
3247 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3248 int ptralign = 0;
3249
3250 switch (bed->s->arch_size)
3251 {
3252 case 32:
3253 ptralign = 2;
3254 break;
3255
3256 case 64:
3257 ptralign = 3;
3258 break;
3259
3260 default:
3261 bfd_set_error (bfd_error_bad_value);
3262 return FALSE;
3263 }
3264
3265 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3266 .rel[a].bss sections. */
3267
3268 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3269 | SEC_LINKER_CREATED);
3270
3271 pltflags = flags;
3272 pltflags |= SEC_CODE;
3273 if (bed->plt_not_loaded)
3274 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3275 if (bed->plt_readonly)
3276 pltflags |= SEC_READONLY;
3277
3278 s = bfd_make_section (abfd, ".plt");
3279 if (s == NULL
3280 || ! bfd_set_section_flags (abfd, s, pltflags)
3281 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3282 return FALSE;
3283
3284 if (bed->want_plt_sym)
3285 {
3286 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3287 .plt section. */
3288 struct elf_link_hash_entry *h;
3289 struct bfd_link_hash_entry *bh = NULL;
3290
3291 if (! (_bfd_generic_link_add_one_symbol
3292 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3293 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3294 return FALSE;
3295
3296 h = (struct elf_link_hash_entry *) bh;
3297 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
3298 h->type = STT_OBJECT;
3299
3300 if (info->shared
3301 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3302 return FALSE;
3303 }
3304
3305 s = bfd_make_section (abfd,
3306 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
3307 if (s == NULL
3308 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3309 || ! bfd_set_section_alignment (abfd, s, ptralign))
3310 return FALSE;
3311
3312 if (! _bfd_elf_create_got_section (abfd, info))
3313 return FALSE;
3314
3315 {
3316 const char *secname;
3317 char *relname;
3318 flagword secflags;
3319 asection *sec;
3320
3321 for (sec = abfd->sections; sec; sec = sec->next)
3322 {
3323 secflags = bfd_get_section_flags (abfd, sec);
3324 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
3325 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
3326 continue;
3327 secname = bfd_get_section_name (abfd, sec);
3328 relname = (char *) bfd_malloc (strlen (secname) + 6);
3329 strcpy (relname, ".rela");
3330 strcat (relname, secname);
3331 s = bfd_make_section (abfd, relname);
3332 if (s == NULL
3333 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3334 || ! bfd_set_section_alignment (abfd, s, ptralign))
3335 return FALSE;
3336 }
3337 }
3338
3339 if (bed->want_dynbss)
3340 {
3341 /* The .dynbss section is a place to put symbols which are defined
3342 by dynamic objects, are referenced by regular objects, and are
3343 not functions. We must allocate space for them in the process
3344 image and use a R_*_COPY reloc to tell the dynamic linker to
3345 initialize them at run time. The linker script puts the .dynbss
3346 section into the .bss section of the final image. */
3347 s = bfd_make_section (abfd, ".dynbss");
3348 if (s == NULL
3349 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
3350 return FALSE;
3351
3352 /* The .rel[a].bss section holds copy relocs. This section is not
3353 normally needed. We need to create it here, though, so that the
3354 linker will map it to an output section. We can't just create it
3355 only if we need it, because we will not know whether we need it
3356 until we have seen all the input files, and the first time the
3357 main linker code calls BFD after examining all the input files
3358 (size_dynamic_sections) the input sections have already been
3359 mapped to the output sections. If the section turns out not to
3360 be needed, we can discard it later. We will never need this
3361 section when generating a shared object, since they do not use
3362 copy relocs. */
3363 if (! info->shared)
3364 {
3365 s = bfd_make_section (abfd,
3366 (bed->default_use_rela_p
3367 ? ".rela.bss" : ".rel.bss"));
3368 if (s == NULL
3369 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3370 || ! bfd_set_section_alignment (abfd, s, ptralign))
3371 return FALSE;
3372 }
3373 }
3374
3375 return TRUE;
3376 }
3377 \f
3378 /* Adjust a symbol defined by a dynamic object and referenced by a
3379 regular object. The current definition is in some section of the
3380 dynamic object, but we're not including those sections. We have to
3381 change the definition to something the rest of the link can
3382 understand. */
3383
3384 static bfd_boolean
3385 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3386 struct elf_link_hash_entry *h)
3387 {
3388 bfd *dynobj;
3389 asection *s;
3390 unsigned int power_of_two;
3391
3392 dynobj = elf_hash_table (info)->dynobj;
3393
3394 /* Make sure we know what is going on here. */
3395 BFD_ASSERT (dynobj != NULL
3396 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
3397 || h->weakdef != NULL
3398 || ((h->elf_link_hash_flags
3399 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
3400 && (h->elf_link_hash_flags
3401 & ELF_LINK_HASH_REF_REGULAR) != 0
3402 && (h->elf_link_hash_flags
3403 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
3404
3405 /* If this is a function, put it in the procedure linkage table. We
3406 will fill in the contents of the procedure linkage table later,
3407 when we know the address of the .got section. */
3408 if (h->type == STT_FUNC
3409 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
3410 {
3411 if (! info->shared
3412 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
3413 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
3414 {
3415 /* This case can occur if we saw a PLT reloc in an input
3416 file, but the symbol was never referred to by a dynamic
3417 object. In such a case, we don't actually need to build
3418 a procedure linkage table, and we can just do a REL64
3419 reloc instead. */
3420 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
3421 return TRUE;
3422 }
3423
3424 /* Make sure this symbol is output as a dynamic symbol. */
3425 if (h->dynindx == -1)
3426 {
3427 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3428 return FALSE;
3429 }
3430
3431 s = bfd_get_section_by_name (dynobj, ".plt");
3432 BFD_ASSERT (s != NULL);
3433
3434 /* If this is the first .plt entry, make room for the special
3435 first entry. */
3436 if (s->size == 0)
3437 s->size += PLT_ENTRY_SIZE;
3438
3439 /* If this symbol is not defined in a regular file, and we are
3440 not generating a shared library, then set the symbol to this
3441 location in the .plt. This is required to make function
3442 pointers compare as equal between the normal executable and
3443 the shared library. */
3444 if (! info->shared
3445 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3446 {
3447 h->root.u.def.section = s;
3448 h->root.u.def.value = s->size;
3449 }
3450
3451 h->plt.offset = s->size;
3452
3453 /* Make room for this entry. */
3454 s->size += elf_sh64_sizeof_plt (info);
3455
3456 /* We also need to make an entry in the .got.plt section, which
3457 will be placed in the .got section by the linker script. */
3458
3459 s = bfd_get_section_by_name (dynobj, ".got.plt");
3460 BFD_ASSERT (s != NULL);
3461 s->size += 8;
3462
3463 /* We also need to make an entry in the .rela.plt section. */
3464
3465 s = bfd_get_section_by_name (dynobj, ".rela.plt");
3466 BFD_ASSERT (s != NULL);
3467 s->size += sizeof (Elf64_External_Rela);
3468
3469 return TRUE;
3470 }
3471
3472 /* If this is a weak symbol, and there is a real definition, the
3473 processor independent code will have arranged for us to see the
3474 real definition first, and we can just use the same value. */
3475 if (h->weakdef != NULL)
3476 {
3477 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
3478 || h->weakdef->root.type == bfd_link_hash_defweak);
3479 h->root.u.def.section = h->weakdef->root.u.def.section;
3480 h->root.u.def.value = h->weakdef->root.u.def.value;
3481 return TRUE;
3482 }
3483
3484 /* This is a reference to a symbol defined by a dynamic object which
3485 is not a function. */
3486
3487 /* If we are creating a shared library, we must presume that the
3488 only references to the symbol are via the global offset table.
3489 For such cases we need not do anything here; the relocations will
3490 be handled correctly by relocate_section. */
3491 if (info->shared)
3492 return TRUE;
3493
3494 /* If there are no references to this symbol that do not use the
3495 GOT, we don't need to generate a copy reloc. */
3496 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
3497 return TRUE;
3498
3499 /* We must allocate the symbol in our .dynbss section, which will
3500 become part of the .bss section of the executable. There will be
3501 an entry for this symbol in the .dynsym section. The dynamic
3502 object will contain position independent code, so all references
3503 from the dynamic object to this symbol will go through the global
3504 offset table. The dynamic linker will use the .dynsym entry to
3505 determine the address it must put in the global offset table, so
3506 both the dynamic object and the regular object will refer to the
3507 same memory location for the variable. */
3508
3509 s = bfd_get_section_by_name (dynobj, ".dynbss");
3510 BFD_ASSERT (s != NULL);
3511
3512 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3513 copy the initial value out of the dynamic object and into the
3514 runtime process image. We need to remember the offset into the
3515 .rela.bss section we are going to use. */
3516 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3517 {
3518 asection *srel;
3519
3520 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
3521 BFD_ASSERT (srel != NULL);
3522 srel->size += sizeof (Elf64_External_Rela);
3523 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
3524 }
3525
3526 /* We need to figure out the alignment required for this symbol. I
3527 have no idea how ELF linkers handle this. */
3528 power_of_two = bfd_log2 (h->size);
3529 if (power_of_two > 3)
3530 power_of_two = 3;
3531
3532 /* Apply the required alignment. */
3533 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
3534 if (power_of_two > bfd_get_section_alignment (dynobj, s))
3535 {
3536 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
3537 return FALSE;
3538 }
3539
3540 /* Define the symbol as being at this point in the section. */
3541 h->root.u.def.section = s;
3542 h->root.u.def.value = s->size;
3543
3544 /* Increment the section size to make room for the symbol. */
3545 s->size += h->size;
3546
3547 return TRUE;
3548 }
3549
3550 /* This function is called via sh_elf_link_hash_traverse if we are
3551 creating a shared object with -Bsymbolic. It discards the space
3552 allocated to copy PC relative relocs against symbols which are
3553 defined in regular objects. We allocated space for them in the
3554 check_relocs routine, but we won't fill them in in the
3555 relocate_section routine. */
3556
3557 static bfd_boolean
3558 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3559 void *ignore ATTRIBUTE_UNUSED)
3560 {
3561 struct elf_sh64_pcrel_relocs_copied *s;
3562
3563 if (h->root.root.type == bfd_link_hash_warning)
3564 h = (struct elf_sh64_link_hash_entry *) h->root.root.u.i.link;
3565
3566 /* We only discard relocs for symbols defined in a regular object. */
3567 if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3568 return TRUE;
3569
3570 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3571 s->section->size -= s->count * sizeof (Elf64_External_Rela);
3572
3573 return TRUE;
3574 }
3575
3576 /* Set the sizes of the dynamic sections. */
3577
3578 static bfd_boolean
3579 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3580 struct bfd_link_info *info)
3581 {
3582 bfd *dynobj;
3583 asection *s;
3584 bfd_boolean plt;
3585 bfd_boolean relocs;
3586 bfd_boolean reltext;
3587
3588 dynobj = elf_hash_table (info)->dynobj;
3589 BFD_ASSERT (dynobj != NULL);
3590
3591 if (elf_hash_table (info)->dynamic_sections_created)
3592 {
3593 /* Set the contents of the .interp section to the interpreter. */
3594 if (info->executable)
3595 {
3596 s = bfd_get_section_by_name (dynobj, ".interp");
3597 BFD_ASSERT (s != NULL);
3598 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3599 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3600 }
3601 }
3602 else
3603 {
3604 /* We may have created entries in the .rela.got section.
3605 However, if we are not creating the dynamic sections, we will
3606 not actually use these entries. Reset the size of .rela.got,
3607 which will cause it to get stripped from the output file
3608 below. */
3609 s = bfd_get_section_by_name (dynobj, ".rela.got");
3610 if (s != NULL)
3611 s->size = 0;
3612 }
3613
3614 /* If this is a -Bsymbolic shared link, then we need to discard all
3615 PC relative relocs against symbols defined in a regular object.
3616 We allocated space for them in the check_relocs routine, but we
3617 will not fill them in in the relocate_section routine. */
3618 if (info->shared && info->symbolic)
3619 sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info),
3620 sh64_elf64_discard_copies, NULL);
3621
3622 /* The check_relocs and adjust_dynamic_symbol entry points have
3623 determined the sizes of the various dynamic sections. Allocate
3624 memory for them. */
3625 plt = FALSE;
3626 relocs = FALSE;
3627 reltext = FALSE;
3628 for (s = dynobj->sections; s != NULL; s = s->next)
3629 {
3630 const char *name;
3631 bfd_boolean strip;
3632
3633 if ((s->flags & SEC_LINKER_CREATED) == 0)
3634 continue;
3635
3636 /* It's OK to base decisions on the section name, because none
3637 of the dynobj section names depend upon the input files. */
3638 name = bfd_get_section_name (dynobj, s);
3639
3640 strip = FALSE;
3641
3642 if (strcmp (name, ".plt") == 0)
3643 {
3644 if (s->size == 0)
3645 {
3646 /* Strip this section if we don't need it; see the
3647 comment below. */
3648 strip = TRUE;
3649 }
3650 else
3651 {
3652 /* Remember whether there is a PLT. */
3653 plt = TRUE;
3654 }
3655 }
3656 else if (strncmp (name, ".rela", 5) == 0)
3657 {
3658 if (s->size == 0)
3659 {
3660 /* If we don't need this section, strip it from the
3661 output file. This is mostly to handle .rela.bss and
3662 .rela.plt. We must create both sections in
3663 create_dynamic_sections, because they must be created
3664 before the linker maps input sections to output
3665 sections. The linker does that before
3666 adjust_dynamic_symbol is called, and it is that
3667 function which decides whether anything needs to go
3668 into these sections. */
3669 strip = TRUE;
3670 }
3671 else
3672 {
3673 asection *target;
3674
3675 /* Remember whether there are any reloc sections other
3676 than .rela.plt. */
3677 if (strcmp (name, ".rela.plt") != 0)
3678 {
3679 const char *outname;
3680
3681 relocs = TRUE;
3682
3683 /* If this relocation section applies to a read only
3684 section, then we probably need a DT_TEXTREL
3685 entry. The entries in the .rela.plt section
3686 really apply to the .got section, which we
3687 created ourselves and so know is not readonly. */
3688 outname = bfd_get_section_name (output_bfd,
3689 s->output_section);
3690 target = bfd_get_section_by_name (output_bfd, outname + 5);
3691 if (target != NULL
3692 && (target->flags & SEC_READONLY) != 0
3693 && (target->flags & SEC_ALLOC) != 0)
3694 reltext = TRUE;
3695 }
3696
3697 /* We use the reloc_count field as a counter if we need
3698 to copy relocs into the output file. */
3699 s->reloc_count = 0;
3700 }
3701 }
3702 else if (strncmp (name, ".got", 4) != 0)
3703 {
3704 /* It's not one of our sections, so don't allocate space. */
3705 continue;
3706 }
3707
3708 if (strip)
3709 {
3710 _bfd_strip_section_from_output (info, s);
3711 continue;
3712 }
3713
3714 /* Allocate memory for the section contents. */
3715 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3716 if (s->contents == NULL && s->size != 0)
3717 return FALSE;
3718 }
3719
3720 if (elf_hash_table (info)->dynamic_sections_created)
3721 {
3722 /* Add some entries to the .dynamic section. We fill in the
3723 values later, in sh64_elf64_finish_dynamic_sections, but we
3724 must add the entries now so that we get the correct size for
3725 the .dynamic section. The DT_DEBUG entry is filled in by the
3726 dynamic linker and used by the debugger. */
3727 if (info->executable)
3728 {
3729 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3730 return FALSE;
3731 }
3732
3733 if (plt)
3734 {
3735 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3736 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3737 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3738 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3739 return FALSE;
3740 }
3741
3742 if (relocs)
3743 {
3744 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3745 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3746 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3747 sizeof (Elf64_External_Rela)))
3748 return FALSE;
3749 }
3750
3751 if (reltext)
3752 {
3753 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3754 return FALSE;
3755 }
3756 }
3757
3758 return TRUE;
3759 }
3760
3761 /* Finish up dynamic symbol handling. We set the contents of various
3762 dynamic sections here. */
3763
3764 static bfd_boolean
3765 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3766 struct bfd_link_info *info,
3767 struct elf_link_hash_entry *h,
3768 Elf_Internal_Sym *sym)
3769 {
3770 bfd *dynobj;
3771
3772 dynobj = elf_hash_table (info)->dynobj;
3773
3774 if (h->plt.offset != (bfd_vma) -1)
3775 {
3776 asection *splt;
3777 asection *sgot;
3778 asection *srel;
3779
3780 bfd_vma plt_index;
3781 bfd_vma got_offset;
3782 Elf_Internal_Rela rel;
3783 bfd_byte *loc;
3784
3785 /* This symbol has an entry in the procedure linkage table. Set
3786 it up. */
3787
3788 BFD_ASSERT (h->dynindx != -1);
3789
3790 splt = bfd_get_section_by_name (dynobj, ".plt");
3791 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3792 srel = bfd_get_section_by_name (dynobj, ".rela.plt");
3793 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3794
3795 /* Get the index in the procedure linkage table which
3796 corresponds to this symbol. This is the index of this symbol
3797 in all the symbols for which we are making plt entries. The
3798 first entry in the procedure linkage table is reserved. */
3799 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3800
3801 /* Get the offset into the .got table of the entry that
3802 corresponds to this function. Each .got entry is 8 bytes.
3803 The first three are reserved. */
3804 got_offset = (plt_index + 3) * 8;
3805
3806 if (info->shared)
3807 got_offset -= GOT_BIAS;
3808
3809 /* Fill in the entry in the procedure linkage table. */
3810 if (! info->shared)
3811 {
3812 if (elf_sh64_plt_entry == NULL)
3813 {
3814 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3815 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3816 }
3817 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3818 elf_sh64_sizeof_plt (info));
3819 movi_3shori_putval (output_bfd,
3820 (sgot->output_section->vma
3821 + sgot->output_offset
3822 + got_offset),
3823 (splt->contents + h->plt.offset
3824 + elf_sh64_plt_symbol_offset (info)));
3825
3826 /* Set bottom bit because its for a branch to SHmedia */
3827 movi_shori_putval (output_bfd,
3828 -(h->plt.offset
3829 + elf_sh64_plt_plt0_offset (info) + 8)
3830 | 1,
3831 (splt->contents + h->plt.offset
3832 + elf_sh64_plt_plt0_offset (info)));
3833 }
3834 else
3835 {
3836 if (elf_sh64_pic_plt_entry == NULL)
3837 {
3838 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3839 elf_sh64_pic_plt_entry_be :
3840 elf_sh64_pic_plt_entry_le);
3841 }
3842 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3843 elf_sh64_sizeof_plt (info));
3844 movi_shori_putval (output_bfd, got_offset,
3845 (splt->contents + h->plt.offset
3846 + elf_sh64_plt_symbol_offset (info)));
3847 }
3848
3849 if (info->shared)
3850 got_offset += GOT_BIAS;
3851
3852 movi_shori_putval (output_bfd,
3853 plt_index * sizeof (Elf64_External_Rela),
3854 (splt->contents + h->plt.offset
3855 + elf_sh64_plt_reloc_offset (info)));
3856
3857 /* Fill in the entry in the global offset table. */
3858 bfd_put_64 (output_bfd,
3859 (splt->output_section->vma
3860 + splt->output_offset
3861 + h->plt.offset
3862 + elf_sh64_plt_temp_offset (info)),
3863 sgot->contents + got_offset);
3864
3865 /* Fill in the entry in the .rela.plt section. */
3866 rel.r_offset = (sgot->output_section->vma
3867 + sgot->output_offset
3868 + got_offset);
3869 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3870 rel.r_addend = 0;
3871 rel.r_addend = GOT_BIAS;
3872 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3873 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3874
3875 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3876 {
3877 /* Mark the symbol as undefined, rather than as defined in
3878 the .plt section. Leave the value alone. */
3879 sym->st_shndx = SHN_UNDEF;
3880 }
3881 }
3882
3883 if (h->got.offset != (bfd_vma) -1)
3884 {
3885 asection *sgot;
3886 asection *srel;
3887 Elf_Internal_Rela rel;
3888 bfd_byte *loc;
3889
3890 /* This symbol has an entry in the global offset table. Set it
3891 up. */
3892
3893 sgot = bfd_get_section_by_name (dynobj, ".got");
3894 srel = bfd_get_section_by_name (dynobj, ".rela.got");
3895 BFD_ASSERT (sgot != NULL && srel != NULL);
3896
3897 rel.r_offset = (sgot->output_section->vma
3898 + sgot->output_offset
3899 + (h->got.offset &~ 1));
3900
3901 /* If this is a -Bsymbolic link, and the symbol is defined
3902 locally, we just want to emit a RELATIVE reloc. Likewise if
3903 the symbol was forced to be local because of a version file.
3904 The entry in the global offset table will already have been
3905 initialized in the relocate_section function. */
3906 if (info->shared
3907 && (info->symbolic || h->dynindx == -1)
3908 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
3909 {
3910 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3911 rel.r_addend = (h->root.u.def.value
3912 + h->root.u.def.section->output_section->vma
3913 + h->root.u.def.section->output_offset);
3914 }
3915 else
3916 {
3917 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3918 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3919 rel.r_addend = 0;
3920 }
3921
3922 loc = srel->contents;
3923 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3924 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3925 }
3926
3927 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
3928 {
3929 asection *s;
3930 Elf_Internal_Rela rel;
3931 bfd_byte *loc;
3932
3933 /* This symbol needs a copy reloc. Set it up. */
3934
3935 BFD_ASSERT (h->dynindx != -1
3936 && (h->root.type == bfd_link_hash_defined
3937 || h->root.type == bfd_link_hash_defweak));
3938
3939 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3940 ".rela.bss");
3941 BFD_ASSERT (s != NULL);
3942
3943 rel.r_offset = (h->root.u.def.value
3944 + h->root.u.def.section->output_section->vma
3945 + h->root.u.def.section->output_offset);
3946 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3947 rel.r_addend = 0;
3948 loc = s->contents;
3949 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3950 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3951 }
3952
3953 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3954 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3955 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3956 sym->st_shndx = SHN_ABS;
3957
3958 return TRUE;
3959 }
3960
3961 /* Finish up the dynamic sections. */
3962
3963 static bfd_boolean
3964 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3965 struct bfd_link_info *info)
3966 {
3967 bfd *dynobj;
3968 asection *sgot;
3969 asection *sdyn;
3970
3971 dynobj = elf_hash_table (info)->dynobj;
3972
3973 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3974 BFD_ASSERT (sgot != NULL);
3975 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3976
3977 if (elf_hash_table (info)->dynamic_sections_created)
3978 {
3979 asection *splt;
3980 Elf64_External_Dyn *dyncon, *dynconend;
3981
3982 BFD_ASSERT (sdyn != NULL);
3983
3984 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3985 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3986 for (; dyncon < dynconend; dyncon++)
3987 {
3988 Elf_Internal_Dyn dyn;
3989 const char *name;
3990 asection *s;
3991 struct elf_link_hash_entry *h;
3992
3993 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3994
3995 switch (dyn.d_tag)
3996 {
3997 default:
3998 break;
3999
4000 case DT_INIT:
4001 name = info->init_function;
4002 goto get_sym;
4003
4004 case DT_FINI:
4005 name = info->fini_function;
4006 get_sym:
4007 if (dyn.d_un.d_val != 0)
4008 {
4009 h = elf_link_hash_lookup (elf_hash_table (info), name,
4010 FALSE, FALSE, TRUE);
4011 if (h != NULL && (h->other & STO_SH5_ISA32))
4012 {
4013 dyn.d_un.d_val |= 1;
4014 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4015 }
4016 }
4017 break;
4018
4019 case DT_PLTGOT:
4020 name = ".got";
4021 goto get_vma;
4022
4023 case DT_JMPREL:
4024 name = ".rela.plt";
4025 get_vma:
4026 s = bfd_get_section_by_name (output_bfd, name);
4027 BFD_ASSERT (s != NULL);
4028 dyn.d_un.d_ptr = s->vma;
4029 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4030 break;
4031
4032 case DT_PLTRELSZ:
4033 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
4034 BFD_ASSERT (s != NULL);
4035 dyn.d_un.d_val = s->size;
4036 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4037 break;
4038
4039 case DT_RELASZ:
4040 /* My reading of the SVR4 ABI indicates that the
4041 procedure linkage table relocs (DT_JMPREL) should be
4042 included in the overall relocs (DT_RELA). This is
4043 what Solaris does. However, UnixWare can not handle
4044 that case. Therefore, we override the DT_RELASZ entry
4045 here to make it not include the JMPREL relocs. Since
4046 the linker script arranges for .rela.plt to follow all
4047 other relocation sections, we don't have to worry
4048 about changing the DT_RELA entry. */
4049 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
4050 if (s != NULL)
4051 dyn.d_un.d_val -= s->size;
4052 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4053 break;
4054 }
4055 }
4056
4057 /* Fill in the first entry in the procedure linkage table. */
4058 splt = bfd_get_section_by_name (dynobj, ".plt");
4059 if (splt && splt->size > 0)
4060 {
4061 if (info->shared)
4062 {
4063 if (elf_sh64_pic_plt_entry == NULL)
4064 {
4065 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
4066 elf_sh64_pic_plt_entry_be :
4067 elf_sh64_pic_plt_entry_le);
4068 }
4069 memcpy (splt->contents, elf_sh64_pic_plt_entry,
4070 elf_sh64_sizeof_plt (info));
4071 }
4072 else
4073 {
4074 if (elf_sh64_plt0_entry == NULL)
4075 {
4076 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
4077 elf_sh64_plt0_entry_be :
4078 elf_sh64_plt0_entry_le);
4079 }
4080 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
4081 movi_3shori_putval (output_bfd,
4082 sgot->output_section->vma
4083 + sgot->output_offset,
4084 splt->contents
4085 + elf_sh64_plt0_gotplt_offset (info));
4086 }
4087
4088 /* UnixWare sets the entsize of .plt to 8, although that doesn't
4089 really seem like the right value. */
4090 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
4091 }
4092 }
4093
4094 /* Fill in the first three entries in the global offset table. */
4095 if (sgot->size > 0)
4096 {
4097 if (sdyn == NULL)
4098 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
4099 else
4100 bfd_put_64 (output_bfd,
4101 sdyn->output_section->vma + sdyn->output_offset,
4102 sgot->contents);
4103 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
4104 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
4105 }
4106
4107 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
4108
4109 return TRUE;
4110 }
4111
4112 /* Merge non visibility st_other attribute when the symbol comes from
4113 a dynamic object. */
4114 static void
4115 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
4116 const Elf_Internal_Sym *isym,
4117 bfd_boolean definition,
4118 bfd_boolean dynamic)
4119 {
4120 if (isym->st_other != 0 && dynamic)
4121 {
4122 unsigned char other;
4123
4124 /* Take the balance of OTHER from the definition. */
4125 other = (definition ? isym->st_other : h->other);
4126 other &= ~ ELF_ST_VISIBILITY (-1);
4127 h->other = other | ELF_ST_VISIBILITY (h->other);
4128 }
4129
4130 return;
4131 }
4132
4133 static struct bfd_elf_special_section const sh64_elf64_special_sections[]=
4134 {
4135 { ".cranges", 8, 0, SHT_PROGBITS, 0 },
4136 { NULL, 0, 0, 0, 0 }
4137 };
4138
4139 #define TARGET_BIG_SYM bfd_elf64_sh64_vec
4140 #define TARGET_BIG_NAME "elf64-sh64"
4141 #define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec
4142 #define TARGET_LITTLE_NAME "elf64-sh64l"
4143 #define ELF_ARCH bfd_arch_sh
4144 #define ELF_MACHINE_CODE EM_SH
4145 #define ELF_MAXPAGESIZE 128
4146
4147 #define elf_symbol_leading_char '_'
4148
4149 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
4150 #define elf_info_to_howto sh_elf64_info_to_howto
4151
4152 /* Note: there's no relaxation at present. */
4153
4154 #define elf_backend_relocate_section sh_elf64_relocate_section
4155 #define bfd_elf64_bfd_get_relocated_section_contents \
4156 sh_elf64_get_relocated_section_contents
4157 #define elf_backend_object_p sh_elf64_set_mach_from_flags
4158 #define bfd_elf64_bfd_set_private_flags \
4159 sh_elf64_set_private_flags
4160 #define bfd_elf64_bfd_copy_private_bfd_data \
4161 sh_elf64_copy_private_data
4162 #define bfd_elf64_bfd_merge_private_bfd_data \
4163 sh_elf64_merge_private_data
4164 #define elf_backend_fake_sections sh64_elf64_fake_sections
4165
4166 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
4167 #define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook
4168 #define elf_backend_check_relocs sh_elf64_check_relocs
4169
4170 #define elf_backend_can_gc_sections 1
4171
4172 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
4173
4174 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
4175
4176 #define elf_backend_link_output_symbol_hook \
4177 sh64_elf64_link_output_symbol_hook
4178
4179 #define elf_backend_merge_symbol_attribute \
4180 sh64_elf64_merge_symbol_attribute
4181
4182 #define elf_backend_final_write_processing \
4183 sh64_elf64_final_write_processing
4184
4185 #define elf_backend_create_dynamic_sections \
4186 sh64_elf64_create_dynamic_sections
4187 #define bfd_elf64_bfd_link_hash_table_create \
4188 sh64_elf64_link_hash_table_create
4189 #define elf_backend_adjust_dynamic_symbol \
4190 sh64_elf64_adjust_dynamic_symbol
4191 #define elf_backend_size_dynamic_sections \
4192 sh64_elf64_size_dynamic_sections
4193 #define elf_backend_finish_dynamic_symbol \
4194 sh64_elf64_finish_dynamic_symbol
4195 #define elf_backend_finish_dynamic_sections \
4196 sh64_elf64_finish_dynamic_sections
4197 #define elf_backend_special_sections sh64_elf64_special_sections
4198
4199 #define elf_backend_want_got_plt 1
4200 #define elf_backend_plt_readonly 1
4201 #define elf_backend_want_plt_sym 0
4202 #define elf_backend_got_header_size 24
4203
4204 #include "elf64-target.h"
4205
4206 /* NetBSD support. */
4207 #undef TARGET_BIG_SYM
4208 #define TARGET_BIG_SYM bfd_elf64_sh64nbsd_vec
4209 #undef TARGET_BIG_NAME
4210 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
4211 #undef TARGET_LITTLE_SYM
4212 #define TARGET_LITTLE_SYM bfd_elf64_sh64lnbsd_vec
4213 #undef TARGET_LITTLE_NAME
4214 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
4215 #undef ELF_MAXPAGESIZE
4216 #define ELF_MAXPAGESIZE 0x10000
4217 #undef elf_symbol_leading_char
4218 #define elf_symbol_leading_char 0
4219
4220 #define elf64_bed elf64_sh64_nbsd_bed
4221
4222 #include "elf64-target.h"
4223
4224 /* Linux support. */
4225 #undef TARGET_BIG_SYM
4226 #define TARGET_BIG_SYM bfd_elf64_sh64blin_vec
4227 #undef TARGET_BIG_NAME
4228 #define TARGET_BIG_NAME "elf64-sh64big-linux"
4229 #undef TARGET_LITTLE_SYM
4230 #define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec
4231 #undef TARGET_LITTLE_NAME
4232 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
4233
4234 #define INCLUDED_TARGET_FILE
4235 #include "elf64-target.h"
GDB Binutils - Deliverables
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