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
sh_elf64_ignore_reloc(bfd * abfd ATTRIBUTE_UNUSED,arelent * reloc_entry,asymbol * symbol ATTRIBUTE_UNUSED,void * data ATTRIBUTE_UNUSED,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)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
sh_elf64_reloc(bfd * abfd,arelent * reloc_entry,asymbol * symbol_in,void * data,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)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 *
sh_elf64_reloc_type_lookup(bfd * abfd ATTRIBUTE_UNUSED,bfd_reloc_code_real_type code)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
sh_elf64_info_to_howto(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)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
sh_elf64_relocate_section(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info,bfd * input_bfd,asection * input_section,bfd_byte * contents,Elf_Internal_Rela * relocs,Elf_Internal_Sym * local_syms,asection ** local_sections)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 (_("%s(%s+0x%lx): %s relocation against SEC_MERGE section"),
1597 bfd_archive_filename (input_bfd),
1598 bfd_get_section_name (input_bfd, input_section),
1599 (long) rel->r_offset, howto->name);
1600 return FALSE;
1601 }
1602
1603 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1604 msec = sec;
1605 addend =
1606 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1607 - relocation;
1608 addend += msec->output_section->vma + msec->output_offset;
1609 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1610 addend = 0;
1611 }
1612 }
1613 else
1614 {
1615 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1616
1617 /* Section symbols are never (?) placed in the hash table, so
1618 we can just ignore hash relocations when creating a
1619 relocatable object file. */
1620 if (info->relocatable)
1621 continue;
1622
1623 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1624 while (h->root.type == bfd_link_hash_indirect
1625 || h->root.type == bfd_link_hash_warning)
1626 {
1627 /* If the reference passes a symbol marked with
1628 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1629 doesn't count. */
1630 seen_stt_datalabel |= h->type == STT_DATALABEL;
1631 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1632 }
1633
1634 if (h->root.type == bfd_link_hash_defined
1635 || h->root.type == bfd_link_hash_defweak)
1636 {
1637 sec = h->root.u.def.section;
1638 /* In these cases, we don't need the relocation value.
1639 We check specially because in some obscure cases
1640 sec->output_section will be NULL. */
1641 if (r_type == R_SH_GOTPC_LOW16
1642 || r_type == R_SH_GOTPC_MEDLOW16
1643 || r_type == R_SH_GOTPC_MEDHI16
1644 || r_type == R_SH_GOTPC_HI16
1645 || ((r_type == R_SH_PLT_LOW16
1646 || r_type == R_SH_PLT_MEDLOW16
1647 || r_type == R_SH_PLT_MEDHI16
1648 || r_type == R_SH_PLT_HI16)
1649 && h->plt.offset != (bfd_vma) -1)
1650 || ((r_type == R_SH_GOT_LOW16
1651 || r_type == R_SH_GOT_MEDLOW16
1652 || r_type == R_SH_GOT_MEDHI16
1653 || r_type == R_SH_GOT_HI16)
1654 && elf_hash_table (info)->dynamic_sections_created
1655 && (! info->shared
1656 || (! info->symbolic && h->dynindx != -1)
1657 || (h->elf_link_hash_flags
1658 & ELF_LINK_HASH_DEF_REGULAR) == 0))
1659 /* The cases above are those in which relocation is
1660 overwritten in the switch block below. The cases
1661 below are those in which we must defer relocation
1662 to run-time, because we can't resolve absolute
1663 addresses when creating a shared library. */
1664 || (info->shared
1665 && ((! info->symbolic && h->dynindx != -1)
1666 || (h->elf_link_hash_flags
1667 & ELF_LINK_HASH_DEF_REGULAR) == 0)
1668 && ((r_type == R_SH_64
1669 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1670 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1671 || r_type == R_SH_64_PCREL)
1672 && ((input_section->flags & SEC_ALLOC) != 0
1673 /* DWARF will emit R_SH_DIR32 relocations in its
1674 sections against symbols defined externally
1675 in shared libraries. We can't do anything
1676 with them here. */
1677 || (input_section->flags & SEC_DEBUGGING) != 0))
1678 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1679 sections because such sections are not SEC_ALLOC and
1680 thus ld.so will not process them. */
1681 || (sec->output_section == NULL
1682 && ((input_section->flags & SEC_DEBUGGING) != 0
1683 && (h->elf_link_hash_flags
1684 & ELF_LINK_HASH_DEF_DYNAMIC) != 0)))
1685 relocation = 0;
1686 else if (sec->output_section == NULL)
1687 {
1688 (*_bfd_error_handler)
1689 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
1690 bfd_get_filename (input_bfd), h->root.root.string,
1691 bfd_get_section_name (input_bfd, input_section));
1692 relocation = 0;
1693 }
1694 else
1695 relocation = ((h->root.u.def.value
1696 + sec->output_section->vma
1697 + sec->output_offset)
1698 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1699 symbol value, unless we've seen
1700 STT_DATALABEL on the way to it. */
1701 | ((h->other & STO_SH5_ISA32) != 0
1702 && ! seen_stt_datalabel));
1703 }
1704 else if (h->root.type == bfd_link_hash_undefweak)
1705 relocation = 0;
1706 else if (info->unresolved_syms_in_objects == RM_IGNORE
1707 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1708 relocation = 0;
1709 else
1710 {
1711 if (! ((*info->callbacks->undefined_symbol)
1712 (info, h->root.root.string, input_bfd,
1713 input_section, rel->r_offset,
1714 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1715 || ELF_ST_VISIBILITY (h->other)))))
1716 return FALSE;
1717 relocation = 0;
1718 }
1719 }
1720
1721 disp = (relocation
1722 - input_section->output_section->vma
1723 - input_section->output_offset
1724 - rel->r_offset);
1725 dropped = 0;
1726 switch ((int)r_type)
1727 {
1728 case R_SH_PT_16: dropped = disp & 2; break;
1729 case R_SH_DIR10SW: dropped = disp & 1; break;
1730 case R_SH_DIR10SL: dropped = disp & 3; break;
1731 case R_SH_DIR10SQ: dropped = disp & 7; break;
1732 }
1733 if (dropped != 0)
1734 {
1735 (*_bfd_error_handler)
1736 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
1737 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation);
1738 bfd_set_error (bfd_error_bad_value);
1739 return FALSE;
1740 }
1741 switch ((int)r_type)
1742 {
1743 case R_SH_64:
1744 case R_SH_64_PCREL:
1745 if (info->shared
1746 && (input_section->flags & SEC_ALLOC) != 0
1747 && (r_type != R_SH_64_PCREL
1748 || (h != NULL
1749 && h->dynindx != -1
1750 && (! info->symbolic
1751 || (h->elf_link_hash_flags
1752 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
1753 {
1754 Elf_Internal_Rela outrel;
1755 bfd_byte *loc;
1756 bfd_boolean skip, relocate;
1757
1758 /* When generating a shared object, these relocations
1759 are copied into the output file to be resolved at run
1760 time. */
1761
1762 if (sreloc == NULL)
1763 {
1764 const char *name;
1765
1766 name = (bfd_elf_string_from_elf_section
1767 (input_bfd,
1768 elf_elfheader (input_bfd)->e_shstrndx,
1769 elf_section_data (input_section)->rel_hdr.sh_name));
1770 if (name == NULL)
1771 return FALSE;
1772
1773 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1774 && strcmp (bfd_get_section_name (input_bfd,
1775 input_section),
1776 name + 5) == 0);
1777
1778 sreloc = bfd_get_section_by_name (dynobj, name);
1779 BFD_ASSERT (sreloc != NULL);
1780 }
1781
1782 skip = FALSE;
1783 relocate = FALSE;
1784
1785 outrel.r_offset
1786 = _bfd_elf_section_offset (output_bfd, info,
1787 input_section, rel->r_offset);
1788
1789 if (outrel.r_offset == (bfd_vma) -1)
1790 skip = TRUE;
1791 else if (outrel.r_offset == (bfd_vma) -2)
1792 skip = TRUE, relocate = TRUE;
1793
1794 outrel.r_offset += (input_section->output_section->vma
1795 + input_section->output_offset);
1796
1797 if (skip)
1798 memset (&outrel, 0, sizeof outrel);
1799 else if (r_type == R_SH_64_PCREL)
1800 {
1801 BFD_ASSERT (h != NULL && h->dynindx != -1);
1802 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1803 outrel.r_addend = rel->r_addend;
1804 }
1805 else
1806 {
1807 /* h->dynindx may be -1 if this symbol was marked to
1808 become local. */
1809 if (h == NULL
1810 || ((info->symbolic || h->dynindx == -1)
1811 && (h->elf_link_hash_flags
1812 & ELF_LINK_HASH_DEF_REGULAR) != 0))
1813 {
1814 relocate = TRUE;
1815 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1816 outrel.r_addend = relocation + rel->r_addend;
1817 }
1818 else
1819 {
1820 BFD_ASSERT (h->dynindx != -1);
1821 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1822 outrel.r_addend = relocation + rel->r_addend;
1823 }
1824 }
1825
1826 loc = sreloc->contents;
1827 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1828 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1829
1830 /* If this reloc is against an external symbol, we do
1831 not want to fiddle with the addend. Otherwise, we
1832 need to include the symbol value so that it becomes
1833 an addend for the dynamic reloc. */
1834 if (! relocate)
1835 continue;
1836 }
1837 else if (r_type == R_SH_64)
1838 addend = rel->r_addend;
1839 goto final_link_relocate;
1840
1841 case R_SH_GOTPLT_LOW16:
1842 case R_SH_GOTPLT_MEDLOW16:
1843 case R_SH_GOTPLT_MEDHI16:
1844 case R_SH_GOTPLT_HI16:
1845 case R_SH_GOTPLT10BY4:
1846 case R_SH_GOTPLT10BY8:
1847 /* Relocation is to the entry for this symbol in the
1848 procedure linkage table. */
1849
1850 if (h == NULL
1851 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1852 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1853 || ! info->shared
1854 || info->symbolic
1855 || h->dynindx == -1
1856 || h->plt.offset == (bfd_vma) -1
1857 || h->got.offset != (bfd_vma) -1)
1858 goto force_got;
1859
1860 /* Relocation is to the entry for this symbol in the global
1861 offset table extension for the procedure linkage table. */
1862 if (sgotplt == NULL)
1863 {
1864 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1865 BFD_ASSERT (sgotplt != NULL);
1866 }
1867
1868 relocation = (sgotplt->output_offset
1869 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1870 - 1 + 3) * 8));
1871
1872 relocation -= GOT_BIAS;
1873
1874 goto final_link_relocate;
1875
1876 force_got:
1877 case R_SH_GOT_LOW16:
1878 case R_SH_GOT_MEDLOW16:
1879 case R_SH_GOT_MEDHI16:
1880 case R_SH_GOT_HI16:
1881 case R_SH_GOT10BY4:
1882 case R_SH_GOT10BY8:
1883 /* Relocation is to the entry for this symbol in the global
1884 offset table. */
1885 if (sgot == NULL)
1886 {
1887 sgot = bfd_get_section_by_name (dynobj, ".got");
1888 BFD_ASSERT (sgot != NULL);
1889 }
1890
1891 if (h != NULL)
1892 {
1893 bfd_vma off;
1894
1895 off = h->got.offset;
1896 if (seen_stt_datalabel)
1897 {
1898 struct elf_sh64_link_hash_entry *hsh;
1899
1900 hsh = (struct elf_sh64_link_hash_entry *)h;
1901 off = hsh->datalabel_got_offset;
1902 }
1903 BFD_ASSERT (off != (bfd_vma) -1);
1904
1905 if (! elf_hash_table (info)->dynamic_sections_created
1906 || (info->shared
1907 && (info->symbolic || h->dynindx == -1
1908 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1909 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1910 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
1911 {
1912 /* This is actually a static link, or it is a
1913 -Bsymbolic link and the symbol is defined
1914 locally, or the symbol was forced to be local
1915 because of a version file. We must initialize
1916 this entry in the global offset table. Since the
1917 offset must always be a multiple of 4, we use the
1918 least significant bit to record whether we have
1919 initialized it already.
1920
1921 When doing a dynamic link, we create a .rela.got
1922 relocation entry to initialize the value. This
1923 is done in the finish_dynamic_symbol routine. */
1924 if ((off & 1) != 0)
1925 off &= ~1;
1926 else
1927 {
1928 bfd_put_64 (output_bfd, relocation,
1929 sgot->contents + off);
1930 if (seen_stt_datalabel)
1931 {
1932 struct elf_sh64_link_hash_entry *hsh;
1933
1934 hsh = (struct elf_sh64_link_hash_entry *)h;
1935 hsh->datalabel_got_offset |= 1;
1936 }
1937 else
1938 h->got.offset |= 1;
1939 }
1940 }
1941
1942 relocation = sgot->output_offset + off;
1943 }
1944 else
1945 {
1946 bfd_vma off;
1947
1948 if (rel->r_addend)
1949 {
1950 BFD_ASSERT (local_got_offsets != NULL
1951 && (local_got_offsets[symtab_hdr->sh_info
1952 + r_symndx]
1953 != (bfd_vma) -1));
1954
1955 off = local_got_offsets[symtab_hdr->sh_info
1956 + r_symndx];
1957 }
1958 else
1959 {
1960 BFD_ASSERT (local_got_offsets != NULL
1961 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1962
1963 off = local_got_offsets[r_symndx];
1964 }
1965
1966 /* The offset must always be a multiple of 8. We use
1967 the least significant bit to record whether we have
1968 already generated the necessary reloc. */
1969 if ((off & 1) != 0)
1970 off &= ~1;
1971 else
1972 {
1973 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1974
1975 if (info->shared)
1976 {
1977 asection *s;
1978 Elf_Internal_Rela outrel;
1979 bfd_byte *loc;
1980
1981 s = bfd_get_section_by_name (dynobj, ".rela.got");
1982 BFD_ASSERT (s != NULL);
1983
1984 outrel.r_offset = (sgot->output_section->vma
1985 + sgot->output_offset
1986 + off);
1987 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1988 outrel.r_addend = relocation;
1989 loc = s->contents;
1990 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1991 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1992 }
1993
1994 if (rel->r_addend)
1995 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1996 else
1997 local_got_offsets[r_symndx] |= 1;
1998 }
1999
2000 relocation = sgot->output_offset + off;
2001 }
2002
2003 relocation -= GOT_BIAS;
2004
2005 goto final_link_relocate;
2006
2007 case R_SH_GOTOFF_LOW16:
2008 case R_SH_GOTOFF_MEDLOW16:
2009 case R_SH_GOTOFF_MEDHI16:
2010 case R_SH_GOTOFF_HI16:
2011 /* Relocation is relative to the start of the global offset
2012 table. */
2013
2014 if (sgot == NULL)
2015 {
2016 sgot = bfd_get_section_by_name (dynobj, ".got");
2017 BFD_ASSERT (sgot != NULL);
2018 }
2019
2020 /* Note that sgot->output_offset is not involved in this
2021 calculation. We always want the start of .got. If we
2022 defined _GLOBAL_OFFSET_TABLE in a different way, as is
2023 permitted by the ABI, we might have to change this
2024 calculation. */
2025 relocation -= sgot->output_section->vma;
2026
2027 relocation -= GOT_BIAS;
2028
2029 addend = rel->r_addend;
2030
2031 goto final_link_relocate;
2032
2033 case R_SH_GOTPC_LOW16:
2034 case R_SH_GOTPC_MEDLOW16:
2035 case R_SH_GOTPC_MEDHI16:
2036 case R_SH_GOTPC_HI16:
2037 /* Use global offset table as symbol value. */
2038
2039 if (sgot == NULL)
2040 {
2041 sgot = bfd_get_section_by_name (dynobj, ".got");
2042 BFD_ASSERT (sgot != NULL);
2043 }
2044
2045 relocation = sgot->output_section->vma;
2046
2047 relocation += GOT_BIAS;
2048
2049 addend = rel->r_addend;
2050
2051 goto final_link_relocate;
2052
2053 case R_SH_PLT_LOW16:
2054 case R_SH_PLT_MEDLOW16:
2055 case R_SH_PLT_MEDHI16:
2056 case R_SH_PLT_HI16:
2057 /* Relocation is to the entry for this symbol in the
2058 procedure linkage table. */
2059
2060 /* Resolve a PLT reloc against a local symbol directly,
2061 without using the procedure linkage table. */
2062 if (h == NULL)
2063 goto final_link_relocate;
2064
2065 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2066 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2067 goto final_link_relocate;
2068
2069 if (h->plt.offset == (bfd_vma) -1)
2070 {
2071 /* We didn't make a PLT entry for this symbol. This
2072 happens when statically linking PIC code, or when
2073 using -Bsymbolic. */
2074 goto final_link_relocate;
2075 }
2076
2077 if (splt == NULL)
2078 {
2079 splt = bfd_get_section_by_name (dynobj, ".plt");
2080 BFD_ASSERT (splt != NULL);
2081 }
2082
2083 relocation = (splt->output_section->vma
2084 + splt->output_offset
2085 + h->plt.offset);
2086 relocation++;
2087
2088 addend = rel->r_addend;
2089
2090 goto final_link_relocate;
2091
2092 case R_SH_DIR32:
2093 case R_SH_SHMEDIA_CODE:
2094 case R_SH_PT_16:
2095 case R_SH_DIR5U:
2096 case R_SH_DIR6S:
2097 case R_SH_DIR6U:
2098 case R_SH_DIR10S:
2099 case R_SH_DIR10SW:
2100 case R_SH_DIR10SL:
2101 case R_SH_DIR10SQ:
2102 case R_SH_IMMS16:
2103 case R_SH_IMMU16:
2104 case R_SH_IMM_LOW16:
2105 case R_SH_IMM_LOW16_PCREL:
2106 case R_SH_IMM_MEDLOW16:
2107 case R_SH_IMM_MEDLOW16_PCREL:
2108 case R_SH_IMM_MEDHI16:
2109 case R_SH_IMM_MEDHI16_PCREL:
2110 case R_SH_IMM_HI16:
2111 case R_SH_IMM_HI16_PCREL:
2112 addend = rel->r_addend;
2113 /* Fall through. */
2114 case R_SH_REL32:
2115 final_link_relocate:
2116 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2117 contents, rel->r_offset,
2118 relocation, addend);
2119 break;
2120
2121 default:
2122 bfd_set_error (bfd_error_bad_value);
2123 return FALSE;
2124
2125 }
2126
2127 if (r != bfd_reloc_ok)
2128 {
2129 switch (r)
2130 {
2131 default:
2132 case bfd_reloc_outofrange:
2133 abort ();
2134 case bfd_reloc_overflow:
2135 {
2136 const char *name;
2137
2138 if (h != NULL)
2139 name = h->root.root.string;
2140 else
2141 {
2142 name = (bfd_elf_string_from_elf_section
2143 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2144 if (name == NULL)
2145 return FALSE;
2146 if (*name == '\0')
2147 name = bfd_section_name (input_bfd, sec);
2148 }
2149 if (! ((*info->callbacks->reloc_overflow)
2150 (info, name, howto->name, (bfd_vma) 0,
2151 input_bfd, input_section, rel->r_offset)))
2152 return FALSE;
2153 }
2154 break;
2155 }
2156 }
2157 }
2158
2159 return TRUE;
2160 }
2161
2162 /* This is a version of bfd_generic_get_relocated_section_contents
2163 that uses sh_elf64_relocate_section.
2164
2165 See sh_elf_relocate_section in elf32-sh.c for the original. */
2166
2167 static bfd_byte *
sh_elf64_get_relocated_section_contents(bfd * output_bfd,struct bfd_link_info * link_info,struct bfd_link_order * link_order,bfd_byte * data,bfd_boolean relocatable,asymbol ** symbols)2168 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2169 struct bfd_link_info *link_info,
2170 struct bfd_link_order *link_order,
2171 bfd_byte *data,
2172 bfd_boolean relocatable,
2173 asymbol **symbols)
2174 {
2175 Elf_Internal_Shdr *symtab_hdr;
2176 asection *input_section = link_order->u.indirect.section;
2177 bfd *input_bfd = input_section->owner;
2178 asection **sections = NULL;
2179 Elf_Internal_Rela *internal_relocs = NULL;
2180 Elf_Internal_Sym *isymbuf = NULL;
2181
2182 /* We only need to handle the case of relaxing, or of having a
2183 particular set of section contents, specially. */
2184 if (relocatable
2185 || elf_section_data (input_section)->this_hdr.contents == NULL)
2186 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2187 link_order, data,
2188 relocatable,
2189 symbols);
2190
2191 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2192
2193 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2194 input_section->_raw_size);
2195
2196 if ((input_section->flags & SEC_RELOC) != 0
2197 && input_section->reloc_count > 0)
2198 {
2199 Elf_Internal_Sym *isymp;
2200 Elf_Internal_Sym *isymend;
2201 asection **secpp;
2202
2203 /* Read this BFD's local symbols. */
2204 if (symtab_hdr->sh_info != 0)
2205 {
2206 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2207 if (isymbuf == NULL)
2208 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2209 symtab_hdr->sh_info, 0,
2210 NULL, NULL, NULL);
2211 if (isymbuf == NULL)
2212 goto error_return;
2213 }
2214
2215 internal_relocs = (_bfd_elf_link_read_relocs
2216 (input_bfd, input_section, NULL,
2217 (Elf_Internal_Rela *) NULL, FALSE));
2218 if (internal_relocs == NULL)
2219 goto error_return;
2220
2221 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2222 * sizeof (asection *));
2223 if (sections == NULL && symtab_hdr->sh_info > 0)
2224 goto error_return;
2225
2226 secpp = sections;
2227 isymend = isymbuf + symtab_hdr->sh_info;
2228 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2229 {
2230 asection *isec;
2231
2232 if (isymp->st_shndx == SHN_UNDEF)
2233 isec = bfd_und_section_ptr;
2234 else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
2235 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2236 else if (isymp->st_shndx == SHN_ABS)
2237 isec = bfd_abs_section_ptr;
2238 else if (isymp->st_shndx == SHN_COMMON)
2239 isec = bfd_com_section_ptr;
2240 else
2241 {
2242 /* Who knows? */
2243 isec = NULL;
2244 }
2245
2246 *secpp = isec;
2247 }
2248
2249 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2250 input_section, data, internal_relocs,
2251 isymbuf, sections))
2252 goto error_return;
2253
2254 if (sections != NULL)
2255 free (sections);
2256 if (internal_relocs != elf_section_data (input_section)->relocs)
2257 free (internal_relocs);
2258 if (isymbuf != NULL
2259 && (unsigned char *) isymbuf != symtab_hdr->contents)
2260 free (isymbuf);
2261 }
2262
2263 return data;
2264
2265 error_return:
2266 if (sections != NULL)
2267 free (sections);
2268 if (internal_relocs != NULL
2269 && internal_relocs != elf_section_data (input_section)->relocs)
2270 free (internal_relocs);
2271 if (isymbuf != NULL
2272 && (unsigned char *) isymbuf != symtab_hdr->contents)
2273 free (isymbuf);
2274 return NULL;
2275 }
2276
2277 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2278
2279 bfd_boolean
sh64_elf64_fake_sections(bfd * output_bfd ATTRIBUTE_UNUSED,Elf_Internal_Shdr * elf_section_hdr,asection * asect)2280 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2281 Elf_Internal_Shdr *elf_section_hdr,
2282 asection *asect)
2283 {
2284 /* Code sections can only contain SH64 code, so mark them as such. */
2285 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2286 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2287
2288 return TRUE;
2289 }
2290
2291 static bfd_boolean
sh_elf64_set_mach_from_flags(bfd * abfd)2292 sh_elf64_set_mach_from_flags (bfd *abfd)
2293 {
2294 flagword flags = elf_elfheader (abfd)->e_flags;
2295
2296 switch (flags & EF_SH_MACH_MASK)
2297 {
2298 case EF_SH5:
2299 /* Just one, but keep the switch construct to make additions easy. */
2300 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2301 break;
2302
2303 default:
2304 bfd_set_error (bfd_error_wrong_format);
2305 return FALSE;
2306 }
2307 return TRUE;
2308 }
2309
2310 /* Function to keep SH64 specific file flags.
2311
2312 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2313
2314 static bfd_boolean
sh_elf64_set_private_flags(bfd * abfd,flagword flags)2315 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2316 {
2317 BFD_ASSERT (! elf_flags_init (abfd)
2318 || elf_elfheader (abfd)->e_flags == flags);
2319
2320 elf_elfheader (abfd)->e_flags = flags;
2321 elf_flags_init (abfd) = TRUE;
2322 return sh_elf64_set_mach_from_flags (abfd);
2323 }
2324
2325 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2326 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2327
2328 static bfd_boolean
sh_elf64_copy_private_data_internal(bfd * ibfd,bfd * obfd)2329 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2330 {
2331 Elf_Internal_Shdr **o_shdrp;
2332 asection *isec;
2333 asection *osec;
2334
2335 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2336 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2337 return TRUE;
2338
2339 o_shdrp = elf_elfsections (obfd);
2340 for (osec = obfd->sections; osec; osec = osec->next)
2341 {
2342 int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx;
2343 for (isec = ibfd->sections; isec; isec = isec->next)
2344 {
2345 if (strcmp (osec->name, isec->name) == 0)
2346 {
2347 /* Note that we're not disallowing mixing data and code. */
2348 if ((elf_section_data (isec)->this_hdr.sh_flags
2349 & SHF_SH5_ISA32) != 0)
2350 o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32;
2351 break;
2352 }
2353 }
2354 }
2355
2356 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2357 }
2358
2359 static bfd_boolean
sh_elf64_copy_private_data(bfd * ibfd,bfd * obfd)2360 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2361 {
2362 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2363 }
2364
2365 static bfd_boolean
sh_elf64_merge_private_data(bfd * ibfd,bfd * obfd)2366 sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd)
2367 {
2368 flagword old_flags, new_flags;
2369
2370 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
2371 return FALSE;
2372
2373 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2374 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2375 return TRUE;
2376
2377 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2378 {
2379 const char *msg;
2380
2381 if (bfd_get_arch_size (ibfd) == 32
2382 && bfd_get_arch_size (obfd) == 64)
2383 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
2384 else if (bfd_get_arch_size (ibfd) == 64
2385 && bfd_get_arch_size (obfd) == 32)
2386 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
2387 else
2388 msg = _("%s: object size does not match that of target %s");
2389
2390 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
2391 bfd_get_filename (obfd));
2392 bfd_set_error (bfd_error_wrong_format);
2393 return FALSE;
2394 }
2395
2396 old_flags = elf_elfheader (obfd)->e_flags;
2397 new_flags = elf_elfheader (ibfd)->e_flags;
2398 if (! elf_flags_init (obfd))
2399 {
2400 /* This happens when ld starts out with a 'blank' output file. */
2401 elf_flags_init (obfd) = TRUE;
2402 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2403 }
2404 /* We don't allow linking in anything else than SH64 code, and since
2405 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2406 here as things change. */
2407 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2408 {
2409 (*_bfd_error_handler)
2410 ("%s: does not use the SH64 64-bit ABI as previous modules do",
2411 bfd_get_filename (ibfd));
2412 bfd_set_error (bfd_error_bad_value);
2413 return FALSE;
2414 }
2415
2416 sh_elf64_copy_private_data_internal (ibfd, obfd);
2417
2418 /* I can't think of anything sane other than old_flags being EF_SH5 and
2419 that we need to preserve that. */
2420 elf_elfheader (obfd)->e_flags = old_flags;
2421
2422 return sh_elf64_set_mach_from_flags (obfd);
2423 }
2424
2425 /* Return the section that should be marked against GC for a given
2426 relocation. */
2427
2428 static asection *
sh_elf64_gc_mark_hook(asection * sec,struct bfd_link_info * info ATTRIBUTE_UNUSED,Elf_Internal_Rela * rel,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)2429 sh_elf64_gc_mark_hook (asection *sec,
2430 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2431 Elf_Internal_Rela *rel,
2432 struct elf_link_hash_entry *h,
2433 Elf_Internal_Sym *sym)
2434 {
2435 if (h != NULL)
2436 {
2437 switch (ELF64_R_TYPE (rel->r_info))
2438 {
2439 case R_SH_GNU_VTINHERIT:
2440 case R_SH_GNU_VTENTRY:
2441 break;
2442
2443 default:
2444 while (h->root.type == bfd_link_hash_indirect
2445 && h->root.u.i.link)
2446 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2447 switch (h->root.type)
2448 {
2449 case bfd_link_hash_defined:
2450 case bfd_link_hash_defweak:
2451 return h->root.u.def.section;
2452
2453 case bfd_link_hash_common:
2454 return h->root.u.c.p->section;
2455
2456 default:
2457 break;
2458 }
2459 }
2460 }
2461 else
2462 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
2463
2464 return NULL;
2465 }
2466
2467 /* Update the got entry reference counts for the section being removed. */
2468
2469 static bfd_boolean
sh_elf64_gc_sweep_hook(bfd * abfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED,asection * sec ATTRIBUTE_UNUSED,const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED)2470 sh_elf64_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
2471 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2472 asection *sec ATTRIBUTE_UNUSED,
2473 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
2474 {
2475 /* No got and plt entries for 64-bit SH at present. */
2476 return TRUE;
2477 }
2478
2479 /* Look through the relocs for a section during the first phase.
2480 Since we don't do .gots or .plts, we just need to consider the
2481 virtual table relocs for gc. */
2482
2483 static bfd_boolean
sh_elf64_check_relocs(bfd * abfd,struct bfd_link_info * info,asection * sec,const Elf_Internal_Rela * relocs)2484 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2485 asection *sec, const Elf_Internal_Rela *relocs)
2486 {
2487 Elf_Internal_Shdr *symtab_hdr;
2488 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
2489 const Elf_Internal_Rela *rel;
2490 const Elf_Internal_Rela *rel_end;
2491 bfd *dynobj;
2492 bfd_vma *local_got_offsets;
2493 asection *sgot;
2494 asection *srelgot;
2495 asection *sreloc;
2496
2497 sgot = NULL;
2498 srelgot = NULL;
2499 sreloc = NULL;
2500
2501 if (info->relocatable)
2502 return TRUE;
2503
2504 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2505 sym_hashes = elf_sym_hashes (abfd);
2506 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym);
2507 if (!elf_bad_symtab (abfd))
2508 sym_hashes_end -= symtab_hdr->sh_info;
2509
2510 dynobj = elf_hash_table (info)->dynobj;
2511 local_got_offsets = elf_local_got_offsets (abfd);
2512
2513 rel_end = relocs + sec->reloc_count;
2514 for (rel = relocs; rel < rel_end; rel++)
2515 {
2516 struct elf_link_hash_entry *h;
2517 unsigned long r_symndx;
2518
2519 r_symndx = ELF64_R_SYM (rel->r_info);
2520 if (r_symndx < symtab_hdr->sh_info)
2521 h = NULL;
2522 else
2523 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2524
2525 /* Some relocs require a global offset table. */
2526 if (dynobj == NULL)
2527 {
2528 switch (ELF64_R_TYPE (rel->r_info))
2529 {
2530 case R_SH_GOTPLT_LOW16:
2531 case R_SH_GOTPLT_MEDLOW16:
2532 case R_SH_GOTPLT_MEDHI16:
2533 case R_SH_GOTPLT_HI16:
2534 case R_SH_GOTPLT10BY4:
2535 case R_SH_GOTPLT10BY8:
2536 case R_SH_GOT_LOW16:
2537 case R_SH_GOT_MEDLOW16:
2538 case R_SH_GOT_MEDHI16:
2539 case R_SH_GOT_HI16:
2540 case R_SH_GOT10BY4:
2541 case R_SH_GOT10BY8:
2542 case R_SH_GOTOFF_LOW16:
2543 case R_SH_GOTOFF_MEDLOW16:
2544 case R_SH_GOTOFF_MEDHI16:
2545 case R_SH_GOTOFF_HI16:
2546 case R_SH_GOTPC_LOW16:
2547 case R_SH_GOTPC_MEDLOW16:
2548 case R_SH_GOTPC_MEDHI16:
2549 case R_SH_GOTPC_HI16:
2550 elf_hash_table (info)->dynobj = dynobj = abfd;
2551 if (! _bfd_elf_create_got_section (dynobj, info))
2552 return FALSE;
2553 break;
2554
2555 default:
2556 break;
2557 }
2558 }
2559
2560 switch (ELF64_R_TYPE (rel->r_info))
2561 {
2562 /* This relocation describes the C++ object vtable hierarchy.
2563 Reconstruct it for later use during GC. */
2564 case R_SH_GNU_VTINHERIT:
2565 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2566 return FALSE;
2567 break;
2568
2569 /* This relocation describes which C++ vtable entries are actually
2570 used. Record for later use during GC. */
2571 case R_SH_GNU_VTENTRY:
2572 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2573 return FALSE;
2574 break;
2575
2576 force_got:
2577 case R_SH_GOT_LOW16:
2578 case R_SH_GOT_MEDLOW16:
2579 case R_SH_GOT_MEDHI16:
2580 case R_SH_GOT_HI16:
2581 case R_SH_GOT10BY4:
2582 case R_SH_GOT10BY8:
2583 /* This symbol requires a global offset table entry. */
2584
2585 if (sgot == NULL)
2586 {
2587 sgot = bfd_get_section_by_name (dynobj, ".got");
2588 BFD_ASSERT (sgot != NULL);
2589 }
2590
2591 if (srelgot == NULL
2592 && (h != NULL || info->shared))
2593 {
2594 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2595 if (srelgot == NULL)
2596 {
2597 srelgot = bfd_make_section (dynobj, ".rela.got");
2598 if (srelgot == NULL
2599 || ! bfd_set_section_flags (dynobj, srelgot,
2600 (SEC_ALLOC
2601 | SEC_LOAD
2602 | SEC_HAS_CONTENTS
2603 | SEC_IN_MEMORY
2604 | SEC_LINKER_CREATED
2605 | SEC_READONLY))
2606 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
2607 return FALSE;
2608 }
2609 }
2610
2611 if (h != NULL)
2612 {
2613 if (h->type == STT_DATALABEL)
2614 {
2615 struct elf_sh64_link_hash_entry *hsh;
2616
2617 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2618 hsh = (struct elf_sh64_link_hash_entry *)h;
2619 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2620 break;
2621
2622 hsh->datalabel_got_offset = sgot->_raw_size;
2623 }
2624 else
2625 {
2626 if (h->got.offset != (bfd_vma) -1)
2627 {
2628 /* We have already allocated space in the .got. */
2629 break;
2630 }
2631 h->got.offset = sgot->_raw_size;
2632 }
2633
2634 /* Make sure this symbol is output as a dynamic symbol. */
2635 if (h->dynindx == -1)
2636 {
2637 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2638 return FALSE;
2639 }
2640
2641 srelgot->_raw_size += sizeof (Elf64_External_Rela);
2642 }
2643 else
2644 {
2645 /* This is a global offset table entry for a local
2646 symbol. */
2647 if (local_got_offsets == NULL)
2648 {
2649 size_t size;
2650 register unsigned int i;
2651
2652 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2653 /* Reserve space for both the datalabel and
2654 codelabel local GOT offsets. */
2655 size *= 2;
2656 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2657 if (local_got_offsets == NULL)
2658 return FALSE;
2659 elf_local_got_offsets (abfd) = local_got_offsets;
2660 for (i = 0; i < symtab_hdr->sh_info; i++)
2661 local_got_offsets[i] = (bfd_vma) -1;
2662 for (; i < 2 * symtab_hdr->sh_info; i++)
2663 local_got_offsets[i] = (bfd_vma) -1;
2664 }
2665 if ((rel->r_addend & 1) != 0)
2666 {
2667 if (local_got_offsets[symtab_hdr->sh_info
2668 + r_symndx] != (bfd_vma) -1)
2669 {
2670 /* We have already allocated space in the .got. */
2671 break;
2672 }
2673 local_got_offsets[symtab_hdr->sh_info
2674 + r_symndx] = sgot->_raw_size;
2675 }
2676 else
2677 {
2678 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2679 {
2680 /* We have already allocated space in the .got. */
2681 break;
2682 }
2683 local_got_offsets[r_symndx] = sgot->_raw_size;
2684 }
2685
2686 if (info->shared)
2687 {
2688 /* If we are generating a shared object, we need to
2689 output a R_SH_RELATIVE reloc so that the dynamic
2690 linker can adjust this GOT entry. */
2691 srelgot->_raw_size += sizeof (Elf64_External_Rela);
2692 }
2693 }
2694
2695 sgot->_raw_size += 8;
2696
2697 break;
2698
2699 case R_SH_GOTPLT_LOW16:
2700 case R_SH_GOTPLT_MEDLOW16:
2701 case R_SH_GOTPLT_MEDHI16:
2702 case R_SH_GOTPLT_HI16:
2703 case R_SH_GOTPLT10BY4:
2704 case R_SH_GOTPLT10BY8:
2705 /* If this is a local symbol, we resolve it directly without
2706 creating a procedure linkage table entry. */
2707
2708 if (h == NULL
2709 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2710 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2711 || ! info->shared
2712 || info->symbolic
2713 || h->dynindx == -1
2714 || h->got.offset != (bfd_vma) -1)
2715 goto force_got;
2716
2717 /* Make sure this symbol is output as a dynamic symbol. */
2718 if (h->dynindx == -1)
2719 {
2720 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2721 return FALSE;
2722 }
2723
2724 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2725
2726 break;
2727
2728 case R_SH_PLT_LOW16:
2729 case R_SH_PLT_MEDLOW16:
2730 case R_SH_PLT_MEDHI16:
2731 case R_SH_PLT_HI16:
2732 /* This symbol requires a procedure linkage table entry. We
2733 actually build the entry in adjust_dynamic_symbol,
2734 because this might be a case of linking PIC code which is
2735 never referenced by a dynamic object, in which case we
2736 don't need to generate a procedure linkage table entry
2737 after all. */
2738
2739 /* If this is a local symbol, we resolve it directly without
2740 creating a procedure linkage table entry. */
2741 if (h == NULL)
2742 continue;
2743
2744 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2745 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2746 break;
2747
2748 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2749
2750 break;
2751
2752 case R_SH_64:
2753 case R_SH_64_PCREL:
2754 if (h != NULL)
2755 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
2756
2757 /* If we are creating a shared library, and this is a reloc
2758 against a global symbol, or a non PC relative reloc
2759 against a local symbol, then we need to copy the reloc
2760 into the shared library. However, if we are linking with
2761 -Bsymbolic, we do not need to copy a reloc against a
2762 global symbol which is defined in an object we are
2763 including in the link (i.e., DEF_REGULAR is set). At
2764 this point we have not seen all the input files, so it is
2765 possible that DEF_REGULAR is not set now but will be set
2766 later (it is never cleared). We account for that
2767 possibility below by storing information in the
2768 pcrel_relocs_copied field of the hash table entry. */
2769 if (info->shared
2770 && (sec->flags & SEC_ALLOC) != 0
2771 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2772 || (h != NULL
2773 && (! info->symbolic
2774 || (h->elf_link_hash_flags
2775 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
2776 {
2777 /* When creating a shared object, we must copy these
2778 reloc types into the output file. We create a reloc
2779 section in dynobj and make room for this reloc. */
2780 if (sreloc == NULL)
2781 {
2782 const char *name;
2783
2784 name = (bfd_elf_string_from_elf_section
2785 (abfd,
2786 elf_elfheader (abfd)->e_shstrndx,
2787 elf_section_data (sec)->rel_hdr.sh_name));
2788 if (name == NULL)
2789 return FALSE;
2790
2791 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2792 && strcmp (bfd_get_section_name (abfd, sec),
2793 name + 5) == 0);
2794
2795 sreloc = bfd_get_section_by_name (dynobj, name);
2796 if (sreloc == NULL)
2797 {
2798 flagword flags;
2799
2800 sreloc = bfd_make_section (dynobj, name);
2801 flags = (SEC_HAS_CONTENTS | SEC_READONLY
2802 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2803 if ((sec->flags & SEC_ALLOC) != 0)
2804 flags |= SEC_ALLOC | SEC_LOAD;
2805 if (sreloc == NULL
2806 || ! bfd_set_section_flags (dynobj, sreloc, flags)
2807 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
2808 return FALSE;
2809 }
2810 }
2811
2812 sreloc->_raw_size += sizeof (Elf64_External_Rela);
2813
2814 /* If we are linking with -Bsymbolic, and this is a
2815 global symbol, we count the number of PC relative
2816 relocations we have entered for this symbol, so that
2817 we can discard them again if the symbol is later
2818 defined by a regular object. Note that this function
2819 is only called if we are using an elf_sh linker
2820 hash table, which means that h is really a pointer to
2821 an elf_sh_link_hash_entry. */
2822 if (h != NULL && info->symbolic
2823 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2824 {
2825 struct elf_sh64_link_hash_entry *eh;
2826 struct elf_sh64_pcrel_relocs_copied *p;
2827
2828 eh = (struct elf_sh64_link_hash_entry *) h;
2829
2830 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2831 if (p->section == sreloc)
2832 break;
2833
2834 if (p == NULL)
2835 {
2836 p = ((struct elf_sh64_pcrel_relocs_copied *)
2837 bfd_alloc (dynobj, sizeof *p));
2838 if (p == NULL)
2839 return FALSE;
2840 p->next = eh->pcrel_relocs_copied;
2841 eh->pcrel_relocs_copied = p;
2842 p->section = sreloc;
2843 p->count = 0;
2844 }
2845
2846 ++p->count;
2847 }
2848 }
2849
2850 break;
2851 }
2852 }
2853
2854 return TRUE;
2855 }
2856
2857 static int
sh64_elf64_get_symbol_type(Elf_Internal_Sym * elf_sym,int type)2858 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2859 {
2860 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2861 return STT_DATALABEL;
2862
2863 return type;
2864 }
2865
2866 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2867 Either file can presumably exist without the other, but do not differ
2868 in elf-size-ness. How to share?
2869
2870 Hook called by the linker routine which adds symbols from an object
2871 file. We must make indirect symbols for undefined symbols marked with
2872 STT_DATALABEL, so relocations passing them will pick up that attribute
2873 and neutralize STO_SH5_ISA32 found on the symbol definition.
2874
2875 There is a problem, though: We want to fill in the hash-table entry for
2876 this symbol and signal to the caller that no further processing is
2877 needed. But we don't have the index for this hash-table entry. We
2878 rely here on that the current entry is the first hash-entry with NULL,
2879 which seems brittle. Also, iterating over the hash-table to find that
2880 entry is a linear operation on the number of symbols in this input
2881 file, and this function should take constant time, so that's not good
2882 too. Only comfort is that DataLabel references should only be found in
2883 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2884 into adding an option to elf_add_symbol_hook (preferably) for the index
2885 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2886 (not so good). */
2887
2888 static bfd_boolean
sh64_elf64_add_symbol_hook(bfd * abfd,struct bfd_link_info * info,Elf_Internal_Sym * sym,const char ** namep,flagword * flagsp ATTRIBUTE_UNUSED,asection ** secp,bfd_vma * valp)2889 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2890 Elf_Internal_Sym *sym, const char **namep,
2891 flagword *flagsp ATTRIBUTE_UNUSED,
2892 asection **secp, bfd_vma *valp)
2893 {
2894 /* We want to do this for relocatable as well as final linking. */
2895 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2896 && is_elf_hash_table (info->hash))
2897 {
2898 struct elf_link_hash_entry *h;
2899
2900 /* For relocatable links, we register the DataLabel sym in its own
2901 right, and tweak the name when it's output. Otherwise, we make
2902 an indirect symbol of it. */
2903 flagword flags
2904 = info->relocatable || info->emitrelocations
2905 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2906
2907 char *dl_name
2908 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2909 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2910
2911 BFD_ASSERT (sym_hash != NULL);
2912
2913 /* Allocation may fail. */
2914 if (dl_name == NULL)
2915 return FALSE;
2916
2917 strcpy (dl_name, *namep);
2918 strcat (dl_name, DATALABEL_SUFFIX);
2919
2920 h = (struct elf_link_hash_entry *)
2921 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2922
2923 if (h == NULL)
2924 {
2925 /* No previous datalabel symbol. Make one. */
2926 struct bfd_link_hash_entry *bh = NULL;
2927 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2928
2929 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2930 flags, *secp, *valp,
2931 *namep, FALSE,
2932 bed->collect, &bh))
2933 {
2934 free (dl_name);
2935 return FALSE;
2936 }
2937
2938 h = (struct elf_link_hash_entry *) bh;
2939 h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF;
2940 h->type = STT_DATALABEL;
2941 }
2942 else
2943 /* If a new symbol was created, it holds the allocated name.
2944 Otherwise, we don't need it anymore and should deallocate it. */
2945 free (dl_name);
2946
2947 if (h->type != STT_DATALABEL
2948 || ((info->relocatable || info->emitrelocations)
2949 && h->root.type != bfd_link_hash_undefined)
2950 || (! info->relocatable && !info->emitrelocations
2951 && h->root.type != bfd_link_hash_indirect))
2952 {
2953 /* Make sure we don't get confused on invalid input. */
2954 (*_bfd_error_handler)
2955 (_("%s: encountered datalabel symbol in input"),
2956 bfd_get_filename (abfd));
2957 bfd_set_error (bfd_error_bad_value);
2958 return FALSE;
2959 }
2960
2961 /* Now find the hash-table slot for this entry and fill it in. */
2962 while (*sym_hash != NULL)
2963 sym_hash++;
2964 *sym_hash = h;
2965
2966 /* Signal to caller to skip this symbol - we've handled it. */
2967 *namep = NULL;
2968 }
2969
2970 return TRUE;
2971 }
2972
2973 /* This hook function is called before the linker writes out a global
2974 symbol. For relocatable links, DataLabel symbols will be present in
2975 linker output. We cut off the special suffix on those symbols, so the
2976 right name appears in the output.
2977
2978 When linking and emitting relocations, there can appear global symbols
2979 that are not referenced by relocs, but rather only implicitly through
2980 DataLabel references, a relation that is not visible to the linker.
2981 Since no stripping of global symbols in done when doing such linking,
2982 we don't need to look up and make sure to emit the main symbol for each
2983 DataLabel symbol. */
2984
2985 static bfd_boolean
sh64_elf64_link_output_symbol_hook(struct bfd_link_info * info,const char * cname,Elf_Internal_Sym * sym,asection * input_sec ATTRIBUTE_UNUSED,struct elf_link_hash_entry * h ATTRIBUTE_UNUSED)2986 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2987 const char *cname,
2988 Elf_Internal_Sym *sym,
2989 asection *input_sec ATTRIBUTE_UNUSED,
2990 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2991 {
2992 char *name = (char *) cname;
2993
2994 if (info->relocatable || info->emitrelocations)
2995 {
2996 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2997 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2998 }
2999
3000 return TRUE;
3001 }
3002
3003 /* Set bit 0 on the entry address; it always points to SHmedia code. This
3004 is mostly for symmetry with the 32-bit format, where code can be
3005 SHcompact and we need to make a distinction to make sure execution
3006 starts in the right ISA mode. It is also convenient for a loader,
3007 which would otherwise have to set this bit when loading a TR register
3008 before jumping to the program entry. */
3009
3010 static void
sh64_elf64_final_write_processing(bfd * abfd,bfd_boolean linker ATTRIBUTE_UNUSED)3011 sh64_elf64_final_write_processing (bfd *abfd,
3012 bfd_boolean linker ATTRIBUTE_UNUSED)
3013 {
3014 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
3015 numerically, but we currently lack the infrastructure to recognize
3016 that: The entry symbol, and info whether it is numeric or a symbol
3017 name is kept private in the linker. */
3018 if (elf_elfheader (abfd)->e_type == ET_EXEC)
3019 elf_elfheader (abfd)->e_entry |= 1;
3020 }
3021
3022 /* First entry in an absolute procedure linkage table look like this. */
3023
3024 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
3025 {
3026 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
3027 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
3028 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
3029 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
3030 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3031 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3032 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3033 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
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 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3042 };
3043
3044 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
3045 {
3046 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
3047 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
3048 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
3049 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
3050 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3051 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3052 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3053 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
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 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3062 };
3063
3064 /* Sebsequent entries in an absolute procedure linkage table look like
3065 this. */
3066
3067 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
3068 {
3069 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
3070 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
3071 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
3072 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
3073 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
3074 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3075 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3076 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3077 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
3078 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
3079 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
3080 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3081 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3082 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3083 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3084 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3085 };
3086
3087 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
3088 {
3089 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, 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, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3093 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
3094 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3095 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3096 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3097 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
3098 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
3099 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
3100 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3101 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3102 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3103 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3104 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3105 };
3106
3107 /* Entries in a PIC procedure linkage table look like this. */
3108
3109 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3110 {
3111 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
3112 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
3113 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
3114 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3115 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3116 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3117 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3118 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3119 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3120 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
3121 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3122 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3123 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3124 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3125 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3126 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3127 };
3128
3129 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3130 {
3131 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3132 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3133 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
3134 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3135 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3136 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3137 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3138 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3139 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3140 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
3141 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3142 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3143 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3144 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3145 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3146 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3147 };
3148
3149 static const bfd_byte *elf_sh64_plt0_entry;
3150 static const bfd_byte *elf_sh64_plt_entry;
3151 static const bfd_byte *elf_sh64_pic_plt_entry;
3152
3153 /* Create an entry in an sh ELF linker hash table. */
3154
3155 static struct bfd_hash_entry *
sh64_elf64_link_hash_newfunc(struct bfd_hash_entry * entry,struct bfd_hash_table * table,const char * string)3156 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
3157 struct bfd_hash_table *table,
3158 const char *string)
3159 {
3160 struct elf_sh64_link_hash_entry *ret =
3161 (struct elf_sh64_link_hash_entry *) entry;
3162
3163 /* Allocate the structure if it has not already been allocated by a
3164 subclass. */
3165 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3166 ret = ((struct elf_sh64_link_hash_entry *)
3167 bfd_hash_allocate (table,
3168 sizeof (struct elf_sh64_link_hash_entry)));
3169 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3170 return (struct bfd_hash_entry *) ret;
3171
3172 /* Call the allocation method of the superclass. */
3173 ret = ((struct elf_sh64_link_hash_entry *)
3174 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3175 table, string));
3176 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3177 {
3178 ret->pcrel_relocs_copied = NULL;
3179 ret->datalabel_got_offset = (bfd_vma) -1;
3180 }
3181
3182 return (struct bfd_hash_entry *) ret;
3183 }
3184
3185 /* Create an sh64 ELF linker hash table. */
3186
3187 static struct bfd_link_hash_table *
sh64_elf64_link_hash_table_create(bfd * abfd)3188 sh64_elf64_link_hash_table_create (bfd *abfd)
3189 {
3190 struct elf_sh64_link_hash_table *ret;
3191
3192 ret = ((struct elf_sh64_link_hash_table *)
3193 bfd_malloc (sizeof (struct elf_sh64_link_hash_table)));
3194 if (ret == (struct elf_sh64_link_hash_table *) NULL)
3195 return NULL;
3196
3197 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
3198 sh64_elf64_link_hash_newfunc))
3199 {
3200 free (ret);
3201 return NULL;
3202 }
3203
3204 return &ret->root.root;
3205 }
3206
3207 inline static void
movi_shori_putval(bfd * output_bfd,unsigned long value,char * addr)3208 movi_shori_putval (bfd *output_bfd, unsigned long value, char *addr)
3209 {
3210 bfd_put_32 (output_bfd,
3211 bfd_get_32 (output_bfd, addr)
3212 | ((value >> 6) & 0x3fffc00),
3213 addr);
3214 bfd_put_32 (output_bfd,
3215 bfd_get_32 (output_bfd, addr + 4)
3216 | ((value << 10) & 0x3fffc00),
3217 addr + 4);
3218 }
3219
3220 inline static void
movi_3shori_putval(bfd * output_bfd,bfd_vma value,char * addr)3221 movi_3shori_putval (bfd *output_bfd, bfd_vma value, char *addr)
3222 {
3223 bfd_put_32 (output_bfd,
3224 bfd_get_32 (output_bfd, addr)
3225 | ((value >> 38) & 0x3fffc00),
3226 addr);
3227 bfd_put_32 (output_bfd,
3228 bfd_get_32 (output_bfd, addr + 4)
3229 | ((value >> 22) & 0x3fffc00),
3230 addr + 4);
3231 bfd_put_32 (output_bfd,
3232 bfd_get_32 (output_bfd, addr + 8)
3233 | ((value >> 6) & 0x3fffc00),
3234 addr + 8);
3235 bfd_put_32 (output_bfd,
3236 bfd_get_32 (output_bfd, addr + 12)
3237 | ((value << 10) & 0x3fffc00),
3238 addr + 12);
3239 }
3240
3241 /* Create dynamic sections when linking against a dynamic object. */
3242
3243 static bfd_boolean
sh64_elf64_create_dynamic_sections(bfd * abfd,struct bfd_link_info * info)3244 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3245 {
3246 flagword flags, pltflags;
3247 register asection *s;
3248 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3249 int ptralign = 0;
3250
3251 switch (bed->s->arch_size)
3252 {
3253 case 32:
3254 ptralign = 2;
3255 break;
3256
3257 case 64:
3258 ptralign = 3;
3259 break;
3260
3261 default:
3262 bfd_set_error (bfd_error_bad_value);
3263 return FALSE;
3264 }
3265
3266 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3267 .rel[a].bss sections. */
3268
3269 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3270 | SEC_LINKER_CREATED);
3271
3272 pltflags = flags;
3273 pltflags |= SEC_CODE;
3274 if (bed->plt_not_loaded)
3275 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3276 if (bed->plt_readonly)
3277 pltflags |= SEC_READONLY;
3278
3279 s = bfd_make_section (abfd, ".plt");
3280 if (s == NULL
3281 || ! bfd_set_section_flags (abfd, s, pltflags)
3282 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3283 return FALSE;
3284
3285 if (bed->want_plt_sym)
3286 {
3287 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3288 .plt section. */
3289 struct elf_link_hash_entry *h;
3290 struct bfd_link_hash_entry *bh = NULL;
3291
3292 if (! (_bfd_generic_link_add_one_symbol
3293 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3294 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3295 return FALSE;
3296
3297 h = (struct elf_link_hash_entry *) bh;
3298 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
3299 h->type = STT_OBJECT;
3300
3301 if (info->shared
3302 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3303 return FALSE;
3304 }
3305
3306 s = bfd_make_section (abfd,
3307 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
3308 if (s == NULL
3309 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3310 || ! bfd_set_section_alignment (abfd, s, ptralign))
3311 return FALSE;
3312
3313 if (! _bfd_elf_create_got_section (abfd, info))
3314 return FALSE;
3315
3316 {
3317 const char *secname;
3318 char *relname;
3319 flagword secflags;
3320 asection *sec;
3321
3322 for (sec = abfd->sections; sec; sec = sec->next)
3323 {
3324 secflags = bfd_get_section_flags (abfd, sec);
3325 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
3326 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
3327 continue;
3328 secname = bfd_get_section_name (abfd, sec);
3329 relname = (char *) bfd_malloc (strlen (secname) + 6);
3330 strcpy (relname, ".rela");
3331 strcat (relname, secname);
3332 s = bfd_make_section (abfd, relname);
3333 if (s == NULL
3334 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3335 || ! bfd_set_section_alignment (abfd, s, ptralign))
3336 return FALSE;
3337 }
3338 }
3339
3340 if (bed->want_dynbss)
3341 {
3342 /* The .dynbss section is a place to put symbols which are defined
3343 by dynamic objects, are referenced by regular objects, and are
3344 not functions. We must allocate space for them in the process
3345 image and use a R_*_COPY reloc to tell the dynamic linker to
3346 initialize them at run time. The linker script puts the .dynbss
3347 section into the .bss section of the final image. */
3348 s = bfd_make_section (abfd, ".dynbss");
3349 if (s == NULL
3350 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
3351 return FALSE;
3352
3353 /* The .rel[a].bss section holds copy relocs. This section is not
3354 normally needed. We need to create it here, though, so that the
3355 linker will map it to an output section. We can't just create it
3356 only if we need it, because we will not know whether we need it
3357 until we have seen all the input files, and the first time the
3358 main linker code calls BFD after examining all the input files
3359 (size_dynamic_sections) the input sections have already been
3360 mapped to the output sections. If the section turns out not to
3361 be needed, we can discard it later. We will never need this
3362 section when generating a shared object, since they do not use
3363 copy relocs. */
3364 if (! info->shared)
3365 {
3366 s = bfd_make_section (abfd,
3367 (bed->default_use_rela_p
3368 ? ".rela.bss" : ".rel.bss"));
3369 if (s == NULL
3370 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3371 || ! bfd_set_section_alignment (abfd, s, ptralign))
3372 return FALSE;
3373 }
3374 }
3375
3376 return TRUE;
3377 }
3378
3379 /* Adjust a symbol defined by a dynamic object and referenced by a
3380 regular object. The current definition is in some section of the
3381 dynamic object, but we're not including those sections. We have to
3382 change the definition to something the rest of the link can
3383 understand. */
3384
3385 static bfd_boolean
sh64_elf64_adjust_dynamic_symbol(struct bfd_link_info * info,struct elf_link_hash_entry * h)3386 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3387 struct elf_link_hash_entry *h)
3388 {
3389 bfd *dynobj;
3390 asection *s;
3391 unsigned int power_of_two;
3392
3393 dynobj = elf_hash_table (info)->dynobj;
3394
3395 /* Make sure we know what is going on here. */
3396 BFD_ASSERT (dynobj != NULL
3397 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
3398 || h->weakdef != NULL
3399 || ((h->elf_link_hash_flags
3400 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
3401 && (h->elf_link_hash_flags
3402 & ELF_LINK_HASH_REF_REGULAR) != 0
3403 && (h->elf_link_hash_flags
3404 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
3405
3406 /* If this is a function, put it in the procedure linkage table. We
3407 will fill in the contents of the procedure linkage table later,
3408 when we know the address of the .got section. */
3409 if (h->type == STT_FUNC
3410 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
3411 {
3412 if (! info->shared
3413 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
3414 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
3415 {
3416 /* This case can occur if we saw a PLT reloc in an input
3417 file, but the symbol was never referred to by a dynamic
3418 object. In such a case, we don't actually need to build
3419 a procedure linkage table, and we can just do a REL64
3420 reloc instead. */
3421 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
3422 return TRUE;
3423 }
3424
3425 /* Make sure this symbol is output as a dynamic symbol. */
3426 if (h->dynindx == -1)
3427 {
3428 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3429 return FALSE;
3430 }
3431
3432 s = bfd_get_section_by_name (dynobj, ".plt");
3433 BFD_ASSERT (s != NULL);
3434
3435 /* If this is the first .plt entry, make room for the special
3436 first entry. */
3437 if (s->_raw_size == 0)
3438 s->_raw_size += PLT_ENTRY_SIZE;
3439
3440 /* If this symbol is not defined in a regular file, and we are
3441 not generating a shared library, then set the symbol to this
3442 location in the .plt. This is required to make function
3443 pointers compare as equal between the normal executable and
3444 the shared library. */
3445 if (! info->shared
3446 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3447 {
3448 h->root.u.def.section = s;
3449 h->root.u.def.value = s->_raw_size;
3450 }
3451
3452 h->plt.offset = s->_raw_size;
3453
3454 /* Make room for this entry. */
3455 s->_raw_size += elf_sh64_sizeof_plt (info);
3456
3457 /* We also need to make an entry in the .got.plt section, which
3458 will be placed in the .got section by the linker script. */
3459
3460 s = bfd_get_section_by_name (dynobj, ".got.plt");
3461 BFD_ASSERT (s != NULL);
3462 s->_raw_size += 8;
3463
3464 /* We also need to make an entry in the .rela.plt section. */
3465
3466 s = bfd_get_section_by_name (dynobj, ".rela.plt");
3467 BFD_ASSERT (s != NULL);
3468 s->_raw_size += sizeof (Elf64_External_Rela);
3469
3470 return TRUE;
3471 }
3472
3473 /* If this is a weak symbol, and there is a real definition, the
3474 processor independent code will have arranged for us to see the
3475 real definition first, and we can just use the same value. */
3476 if (h->weakdef != NULL)
3477 {
3478 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
3479 || h->weakdef->root.type == bfd_link_hash_defweak);
3480 h->root.u.def.section = h->weakdef->root.u.def.section;
3481 h->root.u.def.value = h->weakdef->root.u.def.value;
3482 return TRUE;
3483 }
3484
3485 /* This is a reference to a symbol defined by a dynamic object which
3486 is not a function. */
3487
3488 /* If we are creating a shared library, we must presume that the
3489 only references to the symbol are via the global offset table.
3490 For such cases we need not do anything here; the relocations will
3491 be handled correctly by relocate_section. */
3492 if (info->shared)
3493 return TRUE;
3494
3495 /* If there are no references to this symbol that do not use the
3496 GOT, we don't need to generate a copy reloc. */
3497 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
3498 return TRUE;
3499
3500 /* We must allocate the symbol in our .dynbss section, which will
3501 become part of the .bss section of the executable. There will be
3502 an entry for this symbol in the .dynsym section. The dynamic
3503 object will contain position independent code, so all references
3504 from the dynamic object to this symbol will go through the global
3505 offset table. The dynamic linker will use the .dynsym entry to
3506 determine the address it must put in the global offset table, so
3507 both the dynamic object and the regular object will refer to the
3508 same memory location for the variable. */
3509
3510 s = bfd_get_section_by_name (dynobj, ".dynbss");
3511 BFD_ASSERT (s != NULL);
3512
3513 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3514 copy the initial value out of the dynamic object and into the
3515 runtime process image. We need to remember the offset into the
3516 .rela.bss section we are going to use. */
3517 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3518 {
3519 asection *srel;
3520
3521 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
3522 BFD_ASSERT (srel != NULL);
3523 srel->_raw_size += sizeof (Elf64_External_Rela);
3524 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
3525 }
3526
3527 /* We need to figure out the alignment required for this symbol. I
3528 have no idea how ELF linkers handle this. */
3529 power_of_two = bfd_log2 (h->size);
3530 if (power_of_two > 3)
3531 power_of_two = 3;
3532
3533 /* Apply the required alignment. */
3534 s->_raw_size = BFD_ALIGN (s->_raw_size,
3535 (bfd_size_type) (1 << power_of_two));
3536 if (power_of_two > bfd_get_section_alignment (dynobj, s))
3537 {
3538 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
3539 return FALSE;
3540 }
3541
3542 /* Define the symbol as being at this point in the section. */
3543 h->root.u.def.section = s;
3544 h->root.u.def.value = s->_raw_size;
3545
3546 /* Increment the section size to make room for the symbol. */
3547 s->_raw_size += h->size;
3548
3549 return TRUE;
3550 }
3551
3552 /* This function is called via sh_elf_link_hash_traverse if we are
3553 creating a shared object with -Bsymbolic. It discards the space
3554 allocated to copy PC relative relocs against symbols which are
3555 defined in regular objects. We allocated space for them in the
3556 check_relocs routine, but we won't fill them in in the
3557 relocate_section routine. */
3558
3559 static bfd_boolean
sh64_elf64_discard_copies(struct elf_sh64_link_hash_entry * h,void * ignore ATTRIBUTE_UNUSED)3560 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3561 void *ignore ATTRIBUTE_UNUSED)
3562 {
3563 struct elf_sh64_pcrel_relocs_copied *s;
3564
3565 if (h->root.root.type == bfd_link_hash_warning)
3566 h = (struct elf_sh64_link_hash_entry *) h->root.root.u.i.link;
3567
3568 /* We only discard relocs for symbols defined in a regular object. */
3569 if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3570 return TRUE;
3571
3572 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3573 s->section->_raw_size -= s->count * sizeof (Elf64_External_Rela);
3574
3575 return TRUE;
3576 }
3577
3578 /* Set the sizes of the dynamic sections. */
3579
3580 static bfd_boolean
sh64_elf64_size_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)3581 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3582 struct bfd_link_info *info)
3583 {
3584 bfd *dynobj;
3585 asection *s;
3586 bfd_boolean plt;
3587 bfd_boolean relocs;
3588 bfd_boolean reltext;
3589
3590 dynobj = elf_hash_table (info)->dynobj;
3591 BFD_ASSERT (dynobj != NULL);
3592
3593 if (elf_hash_table (info)->dynamic_sections_created)
3594 {
3595 /* Set the contents of the .interp section to the interpreter. */
3596 if (info->executable)
3597 {
3598 s = bfd_get_section_by_name (dynobj, ".interp");
3599 BFD_ASSERT (s != NULL);
3600 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
3601 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3602 }
3603 }
3604 else
3605 {
3606 /* We may have created entries in the .rela.got section.
3607 However, if we are not creating the dynamic sections, we will
3608 not actually use these entries. Reset the size of .rela.got,
3609 which will cause it to get stripped from the output file
3610 below. */
3611 s = bfd_get_section_by_name (dynobj, ".rela.got");
3612 if (s != NULL)
3613 s->_raw_size = 0;
3614 }
3615
3616 /* If this is a -Bsymbolic shared link, then we need to discard all
3617 PC relative relocs against symbols defined in a regular object.
3618 We allocated space for them in the check_relocs routine, but we
3619 will not fill them in in the relocate_section routine. */
3620 if (info->shared && info->symbolic)
3621 sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info),
3622 sh64_elf64_discard_copies, NULL);
3623
3624 /* The check_relocs and adjust_dynamic_symbol entry points have
3625 determined the sizes of the various dynamic sections. Allocate
3626 memory for them. */
3627 plt = FALSE;
3628 relocs = FALSE;
3629 reltext = FALSE;
3630 for (s = dynobj->sections; s != NULL; s = s->next)
3631 {
3632 const char *name;
3633 bfd_boolean strip;
3634
3635 if ((s->flags & SEC_LINKER_CREATED) == 0)
3636 continue;
3637
3638 /* It's OK to base decisions on the section name, because none
3639 of the dynobj section names depend upon the input files. */
3640 name = bfd_get_section_name (dynobj, s);
3641
3642 strip = FALSE;
3643
3644 if (strcmp (name, ".plt") == 0)
3645 {
3646 if (s->_raw_size == 0)
3647 {
3648 /* Strip this section if we don't need it; see the
3649 comment below. */
3650 strip = TRUE;
3651 }
3652 else
3653 {
3654 /* Remember whether there is a PLT. */
3655 plt = TRUE;
3656 }
3657 }
3658 else if (strncmp (name, ".rela", 5) == 0)
3659 {
3660 if (s->_raw_size == 0)
3661 {
3662 /* If we don't need this section, strip it from the
3663 output file. This is mostly to handle .rela.bss and
3664 .rela.plt. We must create both sections in
3665 create_dynamic_sections, because they must be created
3666 before the linker maps input sections to output
3667 sections. The linker does that before
3668 adjust_dynamic_symbol is called, and it is that
3669 function which decides whether anything needs to go
3670 into these sections. */
3671 strip = TRUE;
3672 }
3673 else
3674 {
3675 asection *target;
3676
3677 /* Remember whether there are any reloc sections other
3678 than .rela.plt. */
3679 if (strcmp (name, ".rela.plt") != 0)
3680 {
3681 const char *outname;
3682
3683 relocs = TRUE;
3684
3685 /* If this relocation section applies to a read only
3686 section, then we probably need a DT_TEXTREL
3687 entry. The entries in the .rela.plt section
3688 really apply to the .got section, which we
3689 created ourselves and so know is not readonly. */
3690 outname = bfd_get_section_name (output_bfd,
3691 s->output_section);
3692 target = bfd_get_section_by_name (output_bfd, outname + 5);
3693 if (target != NULL
3694 && (target->flags & SEC_READONLY) != 0
3695 && (target->flags & SEC_ALLOC) != 0)
3696 reltext = TRUE;
3697 }
3698
3699 /* We use the reloc_count field as a counter if we need
3700 to copy relocs into the output file. */
3701 s->reloc_count = 0;
3702 }
3703 }
3704 else if (strncmp (name, ".got", 4) != 0)
3705 {
3706 /* It's not one of our sections, so don't allocate space. */
3707 continue;
3708 }
3709
3710 if (strip)
3711 {
3712 _bfd_strip_section_from_output (info, s);
3713 continue;
3714 }
3715
3716 /* Allocate memory for the section contents. */
3717 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
3718 if (s->contents == NULL && s->_raw_size != 0)
3719 return FALSE;
3720 }
3721
3722 if (elf_hash_table (info)->dynamic_sections_created)
3723 {
3724 /* Add some entries to the .dynamic section. We fill in the
3725 values later, in sh64_elf64_finish_dynamic_sections, but we
3726 must add the entries now so that we get the correct size for
3727 the .dynamic section. The DT_DEBUG entry is filled in by the
3728 dynamic linker and used by the debugger. */
3729 if (info->executable)
3730 {
3731 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3732 return FALSE;
3733 }
3734
3735 if (plt)
3736 {
3737 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3738 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3739 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3740 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3741 return FALSE;
3742 }
3743
3744 if (relocs)
3745 {
3746 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3747 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3748 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3749 sizeof (Elf64_External_Rela)))
3750 return FALSE;
3751 }
3752
3753 if (reltext)
3754 {
3755 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3756 return FALSE;
3757 }
3758 }
3759
3760 return TRUE;
3761 }
3762
3763 /* Finish up dynamic symbol handling. We set the contents of various
3764 dynamic sections here. */
3765
3766 static bfd_boolean
sh64_elf64_finish_dynamic_symbol(bfd * output_bfd,struct bfd_link_info * info,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)3767 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3768 struct bfd_link_info *info,
3769 struct elf_link_hash_entry *h,
3770 Elf_Internal_Sym *sym)
3771 {
3772 bfd *dynobj;
3773
3774 dynobj = elf_hash_table (info)->dynobj;
3775
3776 if (h->plt.offset != (bfd_vma) -1)
3777 {
3778 asection *splt;
3779 asection *sgot;
3780 asection *srel;
3781
3782 bfd_vma plt_index;
3783 bfd_vma got_offset;
3784 Elf_Internal_Rela rel;
3785 bfd_byte *loc;
3786
3787 /* This symbol has an entry in the procedure linkage table. Set
3788 it up. */
3789
3790 BFD_ASSERT (h->dynindx != -1);
3791
3792 splt = bfd_get_section_by_name (dynobj, ".plt");
3793 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3794 srel = bfd_get_section_by_name (dynobj, ".rela.plt");
3795 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3796
3797 /* Get the index in the procedure linkage table which
3798 corresponds to this symbol. This is the index of this symbol
3799 in all the symbols for which we are making plt entries. The
3800 first entry in the procedure linkage table is reserved. */
3801 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3802
3803 /* Get the offset into the .got table of the entry that
3804 corresponds to this function. Each .got entry is 8 bytes.
3805 The first three are reserved. */
3806 got_offset = (plt_index + 3) * 8;
3807
3808 if (info->shared)
3809 got_offset -= GOT_BIAS;
3810
3811 /* Fill in the entry in the procedure linkage table. */
3812 if (! info->shared)
3813 {
3814 if (elf_sh64_plt_entry == NULL)
3815 {
3816 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3817 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3818 }
3819 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3820 elf_sh64_sizeof_plt (info));
3821 movi_3shori_putval (output_bfd,
3822 (sgot->output_section->vma
3823 + sgot->output_offset
3824 + got_offset),
3825 (splt->contents + h->plt.offset
3826 + elf_sh64_plt_symbol_offset (info)));
3827
3828 /* Set bottom bit because its for a branch to SHmedia */
3829 movi_shori_putval (output_bfd,
3830 -(h->plt.offset
3831 + elf_sh64_plt_plt0_offset (info) + 8)
3832 | 1,
3833 (splt->contents + h->plt.offset
3834 + elf_sh64_plt_plt0_offset (info)));
3835 }
3836 else
3837 {
3838 if (elf_sh64_pic_plt_entry == NULL)
3839 {
3840 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3841 elf_sh64_pic_plt_entry_be :
3842 elf_sh64_pic_plt_entry_le);
3843 }
3844 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3845 elf_sh64_sizeof_plt (info));
3846 movi_shori_putval (output_bfd, got_offset,
3847 (splt->contents + h->plt.offset
3848 + elf_sh64_plt_symbol_offset (info)));
3849 }
3850
3851 if (info->shared)
3852 got_offset += GOT_BIAS;
3853
3854 movi_shori_putval (output_bfd,
3855 plt_index * sizeof (Elf64_External_Rela),
3856 (splt->contents + h->plt.offset
3857 + elf_sh64_plt_reloc_offset (info)));
3858
3859 /* Fill in the entry in the global offset table. */
3860 bfd_put_64 (output_bfd,
3861 (splt->output_section->vma
3862 + splt->output_offset
3863 + h->plt.offset
3864 + elf_sh64_plt_temp_offset (info)),
3865 sgot->contents + got_offset);
3866
3867 /* Fill in the entry in the .rela.plt section. */
3868 rel.r_offset = (sgot->output_section->vma
3869 + sgot->output_offset
3870 + got_offset);
3871 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3872 rel.r_addend = 0;
3873 rel.r_addend = GOT_BIAS;
3874 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3875 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3876
3877 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3878 {
3879 /* Mark the symbol as undefined, rather than as defined in
3880 the .plt section. Leave the value alone. */
3881 sym->st_shndx = SHN_UNDEF;
3882 }
3883 }
3884
3885 if (h->got.offset != (bfd_vma) -1)
3886 {
3887 asection *sgot;
3888 asection *srel;
3889 Elf_Internal_Rela rel;
3890 bfd_byte *loc;
3891
3892 /* This symbol has an entry in the global offset table. Set it
3893 up. */
3894
3895 sgot = bfd_get_section_by_name (dynobj, ".got");
3896 srel = bfd_get_section_by_name (dynobj, ".rela.got");
3897 BFD_ASSERT (sgot != NULL && srel != NULL);
3898
3899 rel.r_offset = (sgot->output_section->vma
3900 + sgot->output_offset
3901 + (h->got.offset &~ 1));
3902
3903 /* If this is a -Bsymbolic link, and the symbol is defined
3904 locally, we just want to emit a RELATIVE reloc. Likewise if
3905 the symbol was forced to be local because of a version file.
3906 The entry in the global offset table will already have been
3907 initialized in the relocate_section function. */
3908 if (info->shared
3909 && (info->symbolic || h->dynindx == -1)
3910 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
3911 {
3912 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3913 rel.r_addend = (h->root.u.def.value
3914 + h->root.u.def.section->output_section->vma
3915 + h->root.u.def.section->output_offset);
3916 }
3917 else
3918 {
3919 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3920 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3921 rel.r_addend = 0;
3922 }
3923
3924 loc = srel->contents;
3925 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3926 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3927 }
3928
3929 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
3930 {
3931 asection *s;
3932 Elf_Internal_Rela rel;
3933 bfd_byte *loc;
3934
3935 /* This symbol needs a copy reloc. Set it up. */
3936
3937 BFD_ASSERT (h->dynindx != -1
3938 && (h->root.type == bfd_link_hash_defined
3939 || h->root.type == bfd_link_hash_defweak));
3940
3941 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3942 ".rela.bss");
3943 BFD_ASSERT (s != NULL);
3944
3945 rel.r_offset = (h->root.u.def.value
3946 + h->root.u.def.section->output_section->vma
3947 + h->root.u.def.section->output_offset);
3948 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3949 rel.r_addend = 0;
3950 loc = s->contents;
3951 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3952 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3953 }
3954
3955 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3956 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3957 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3958 sym->st_shndx = SHN_ABS;
3959
3960 return TRUE;
3961 }
3962
3963 /* Finish up the dynamic sections. */
3964
3965 static bfd_boolean
sh64_elf64_finish_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)3966 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3967 struct bfd_link_info *info)
3968 {
3969 bfd *dynobj;
3970 asection *sgot;
3971 asection *sdyn;
3972
3973 dynobj = elf_hash_table (info)->dynobj;
3974
3975 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3976 BFD_ASSERT (sgot != NULL);
3977 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3978
3979 if (elf_hash_table (info)->dynamic_sections_created)
3980 {
3981 asection *splt;
3982 Elf64_External_Dyn *dyncon, *dynconend;
3983
3984 BFD_ASSERT (sdyn != NULL);
3985
3986 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3987 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
3988 for (; dyncon < dynconend; dyncon++)
3989 {
3990 Elf_Internal_Dyn dyn;
3991 const char *name;
3992 asection *s;
3993 struct elf_link_hash_entry *h;
3994
3995 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3996
3997 switch (dyn.d_tag)
3998 {
3999 default:
4000 break;
4001
4002 case DT_INIT:
4003 name = info->init_function;
4004 goto get_sym;
4005
4006 case DT_FINI:
4007 name = info->fini_function;
4008 get_sym:
4009 if (dyn.d_un.d_val != 0)
4010 {
4011 h = elf_link_hash_lookup (elf_hash_table (info), name,
4012 FALSE, FALSE, TRUE);
4013 if (h != NULL && (h->other & STO_SH5_ISA32))
4014 {
4015 dyn.d_un.d_val |= 1;
4016 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4017 }
4018 }
4019 break;
4020
4021 case DT_PLTGOT:
4022 name = ".got";
4023 goto get_vma;
4024
4025 case DT_JMPREL:
4026 name = ".rela.plt";
4027 get_vma:
4028 s = bfd_get_section_by_name (output_bfd, name);
4029 BFD_ASSERT (s != NULL);
4030 dyn.d_un.d_ptr = s->vma;
4031 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4032 break;
4033
4034 case DT_PLTRELSZ:
4035 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
4036 BFD_ASSERT (s != NULL);
4037 if (s->_cooked_size != 0)
4038 dyn.d_un.d_val = s->_cooked_size;
4039 else
4040 dyn.d_un.d_val = s->_raw_size;
4041 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4042 break;
4043
4044 case DT_RELASZ:
4045 /* My reading of the SVR4 ABI indicates that the
4046 procedure linkage table relocs (DT_JMPREL) should be
4047 included in the overall relocs (DT_RELA). This is
4048 what Solaris does. However, UnixWare can not handle
4049 that case. Therefore, we override the DT_RELASZ entry
4050 here to make it not include the JMPREL relocs. Since
4051 the linker script arranges for .rela.plt to follow all
4052 other relocation sections, we don't have to worry
4053 about changing the DT_RELA entry. */
4054 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
4055 if (s != NULL)
4056 {
4057 if (s->_cooked_size != 0)
4058 dyn.d_un.d_val -= s->_cooked_size;
4059 else
4060 dyn.d_un.d_val -= s->_raw_size;
4061 }
4062 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4063 break;
4064 }
4065 }
4066
4067 /* Fill in the first entry in the procedure linkage table. */
4068 splt = bfd_get_section_by_name (dynobj, ".plt");
4069 if (splt && splt->_raw_size > 0)
4070 {
4071 if (info->shared)
4072 {
4073 if (elf_sh64_pic_plt_entry == NULL)
4074 {
4075 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
4076 elf_sh64_pic_plt_entry_be :
4077 elf_sh64_pic_plt_entry_le);
4078 }
4079 memcpy (splt->contents, elf_sh64_pic_plt_entry,
4080 elf_sh64_sizeof_plt (info));
4081 }
4082 else
4083 {
4084 if (elf_sh64_plt0_entry == NULL)
4085 {
4086 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
4087 elf_sh64_plt0_entry_be :
4088 elf_sh64_plt0_entry_le);
4089 }
4090 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
4091 movi_3shori_putval (output_bfd,
4092 sgot->output_section->vma
4093 + sgot->output_offset,
4094 splt->contents
4095 + elf_sh64_plt0_gotplt_offset (info));
4096 }
4097
4098 /* UnixWare sets the entsize of .plt to 8, although that doesn't
4099 really seem like the right value. */
4100 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
4101 }
4102 }
4103
4104 /* Fill in the first three entries in the global offset table. */
4105 if (sgot->_raw_size > 0)
4106 {
4107 if (sdyn == NULL)
4108 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
4109 else
4110 bfd_put_64 (output_bfd,
4111 sdyn->output_section->vma + sdyn->output_offset,
4112 sgot->contents);
4113 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
4114 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
4115 }
4116
4117 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
4118
4119 return TRUE;
4120 }
4121
4122 /* Merge non visibility st_other attribute when the symbol comes from
4123 a dynamic object. */
4124 static void
sh64_elf64_merge_symbol_attribute(struct elf_link_hash_entry * h,const Elf_Internal_Sym * isym,bfd_boolean definition,bfd_boolean dynamic)4125 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
4126 const Elf_Internal_Sym *isym,
4127 bfd_boolean definition,
4128 bfd_boolean dynamic)
4129 {
4130 if (isym->st_other != 0 && dynamic)
4131 {
4132 unsigned char other;
4133
4134 /* Take the balance of OTHER from the definition. */
4135 other = (definition ? isym->st_other : h->other);
4136 other &= ~ ELF_ST_VISIBILITY (-1);
4137 h->other = other | ELF_ST_VISIBILITY (h->other);
4138 }
4139
4140 return;
4141 }
4142
4143 static struct bfd_elf_special_section const sh64_elf64_special_sections[]=
4144 {
4145 { ".cranges", 8, 0, SHT_PROGBITS, 0 },
4146 { NULL, 0, 0, 0, 0 }
4147 };
4148
4149 #define TARGET_BIG_SYM bfd_elf64_sh64_vec
4150 #define TARGET_BIG_NAME "elf64-sh64"
4151 #define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec
4152 #define TARGET_LITTLE_NAME "elf64-sh64l"
4153 #define ELF_ARCH bfd_arch_sh
4154 #define ELF_MACHINE_CODE EM_SH
4155 #define ELF_MAXPAGESIZE 128
4156
4157 #define elf_symbol_leading_char '_'
4158
4159 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
4160 #define elf_info_to_howto sh_elf64_info_to_howto
4161
4162 /* Note: there's no relaxation at present. */
4163
4164 #define elf_backend_relocate_section sh_elf64_relocate_section
4165 #define bfd_elf64_bfd_get_relocated_section_contents \
4166 sh_elf64_get_relocated_section_contents
4167 #define elf_backend_object_p sh_elf64_set_mach_from_flags
4168 #define bfd_elf64_bfd_set_private_flags \
4169 sh_elf64_set_private_flags
4170 #define bfd_elf64_bfd_copy_private_bfd_data \
4171 sh_elf64_copy_private_data
4172 #define bfd_elf64_bfd_merge_private_bfd_data \
4173 sh_elf64_merge_private_data
4174 #define elf_backend_fake_sections sh64_elf64_fake_sections
4175
4176 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
4177 #define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook
4178 #define elf_backend_check_relocs sh_elf64_check_relocs
4179
4180 #define elf_backend_can_gc_sections 1
4181
4182 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
4183
4184 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
4185
4186 #define elf_backend_link_output_symbol_hook \
4187 sh64_elf64_link_output_symbol_hook
4188
4189 #define elf_backend_merge_symbol_attribute \
4190 sh64_elf64_merge_symbol_attribute
4191
4192 #define elf_backend_final_write_processing \
4193 sh64_elf64_final_write_processing
4194
4195 #define elf_backend_create_dynamic_sections \
4196 sh64_elf64_create_dynamic_sections
4197 #define bfd_elf64_bfd_link_hash_table_create \
4198 sh64_elf64_link_hash_table_create
4199 #define elf_backend_adjust_dynamic_symbol \
4200 sh64_elf64_adjust_dynamic_symbol
4201 #define elf_backend_size_dynamic_sections \
4202 sh64_elf64_size_dynamic_sections
4203 #define elf_backend_finish_dynamic_symbol \
4204 sh64_elf64_finish_dynamic_symbol
4205 #define elf_backend_finish_dynamic_sections \
4206 sh64_elf64_finish_dynamic_sections
4207 #define elf_backend_special_sections sh64_elf64_special_sections
4208
4209 #define elf_backend_want_got_plt 1
4210 #define elf_backend_plt_readonly 1
4211 #define elf_backend_want_plt_sym 0
4212 #define elf_backend_got_header_size 24
4213
4214 #include "elf64-target.h"
4215
4216 /* NetBSD support. */
4217 #undef TARGET_BIG_SYM
4218 #define TARGET_BIG_SYM bfd_elf64_sh64nbsd_vec
4219 #undef TARGET_BIG_NAME
4220 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
4221 #undef TARGET_LITTLE_SYM
4222 #define TARGET_LITTLE_SYM bfd_elf64_sh64lnbsd_vec
4223 #undef TARGET_LITTLE_NAME
4224 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
4225 #undef ELF_MAXPAGESIZE
4226 #define ELF_MAXPAGESIZE 0x10000
4227 #undef elf_symbol_leading_char
4228 #define elf_symbol_leading_char 0
4229
4230 #define elf64_bed elf64_sh64_nbsd_bed
4231
4232 #include "elf64-target.h"
4233
4234 /* Linux support. */
4235 #undef TARGET_BIG_SYM
4236 #define TARGET_BIG_SYM bfd_elf64_sh64blin_vec
4237 #undef TARGET_BIG_NAME
4238 #define TARGET_BIG_NAME "elf64-sh64big-linux"
4239 #undef TARGET_LITTLE_SYM
4240 #define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec
4241 #undef TARGET_LITTLE_NAME
4242 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
4243
4244 #define INCLUDED_TARGET_FILE
4245 #include "elf64-target.h"
4246