projects / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
* section.c (bfd_get_linker_section): New function.
[binutils-gdb.git] / bfd / elf64-sh64.c
1 /* SuperH SH64-specific support for 64-bit ELF
2 Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
3 2010, 2011, 2012 Free Software Foundation, Inc.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
21
22 #define SH64_ELF64
23
24 #include "sysdep.h"
25 #include "bfd.h"
26 #include "bfdlink.h"
27 #include "libbfd.h"
28 #include "elf-bfd.h"
29 #include "elf/sh.h"
30
31 /* Add a suffix for datalabel indirection symbols. It must not match any
32 other symbols; user symbols with or without version or other
33 decoration. It must only be used internally and not emitted by any
34 means. */
35 #define DATALABEL_SUFFIX " DL"
36
37 #define GOT_BIAS (-((long)-32768))
38
39 #define PLT_ENTRY_SIZE 64
40
41 /* Return size of a PLT entry. */
42 #define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE
43
44 /* Return offset of the PLT0 address in an absolute PLT entry. */
45 #define elf_sh64_plt_plt0_offset(info) 32
46
47 /* Return offset of the linker in PLT0 entry. */
48 #define elf_sh64_plt0_gotplt_offset(info) 0
49
50 /* Return offset of the trampoline in PLT entry */
51 #define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
52
53 /* Return offset of the symbol in PLT entry. */
54 #define elf_sh64_plt_symbol_offset(info) 0
55
56 /* Return offset of the relocation in PLT entry. */
57 #define elf_sh64_plt_reloc_offset(info) (info->shared ? 52 : 44)
58
59 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
60
61 /* The sh linker needs to keep track of the number of relocs that it
62 decides to copy in check_relocs for each symbol. This is so that
63 it can discard PC relative relocs if it doesn't need them when
64 linking with -Bsymbolic. We store the information in a field
65 extending the regular ELF linker hash table. */
66
67 /* This structure keeps track of the number of PC relative relocs we
68 have copied for a given symbol. */
69
70 struct elf_sh64_pcrel_relocs_copied
71 {
72 /* Next section. */
73 struct elf_sh64_pcrel_relocs_copied *next;
74 /* A section in dynobj. */
75 asection *section;
76 /* Number of relocs copied in this section. */
77 bfd_size_type count;
78 };
79
80 /* sh ELF linker hash entry. */
81
82 struct elf_sh64_link_hash_entry
83 {
84 struct elf_link_hash_entry root;
85
86 bfd_vma datalabel_got_offset;
87
88 /* Number of PC relative relocs copied for this symbol. */
89 struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied;
90 };
91
92 /* Traverse an sh ELF linker hash table. */
93
94 #define sh64_elf64_link_hash_traverse(table, func, info) \
95 (elf_link_hash_traverse \
96 ((table), \
97 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
98 (info)))
99
100 static bfd_reloc_status_type sh_elf64_ignore_reloc
101 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
102 static bfd_reloc_status_type sh_elf64_reloc
103 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
104
105 static reloc_howto_type sh_elf64_howto_table[] = {
106 /* No relocation. */
107 HOWTO (R_SH_NONE, /* type */
108 0, /* rightshift */
109 0, /* size (0 = byte, 1 = short, 2 = long) */
110 0, /* bitsize */
111 FALSE, /* pc_relative */
112 0, /* bitpos */
113 complain_overflow_dont, /* complain_on_overflow */
114 sh_elf64_ignore_reloc, /* special_function */
115 "R_SH_NONE", /* name */
116 FALSE, /* partial_inplace */
117 0, /* src_mask */
118 0, /* dst_mask */
119 FALSE), /* pcrel_offset */
120
121 /* 32 bit absolute relocation. Setting partial_inplace to TRUE and
122 src_mask to a non-zero value is similar to the COFF toolchain. */
123 HOWTO (R_SH_DIR32, /* type */
124 0, /* rightshift */
125 2, /* size (0 = byte, 1 = short, 2 = long) */
126 32, /* bitsize */
127 FALSE, /* pc_relative */
128 0, /* bitpos */
129 complain_overflow_bitfield, /* complain_on_overflow */
130 sh_elf64_reloc, /* special_function */
131 "R_SH_DIR32", /* name */
132 TRUE, /* partial_inplace */
133 0xffffffff, /* src_mask */
134 0xffffffff, /* dst_mask */
135 FALSE), /* pcrel_offset */
136
137 /* 32 bit PC relative relocation. */
138 HOWTO (R_SH_REL32, /* type */
139 0, /* rightshift */
140 2, /* size (0 = byte, 1 = short, 2 = long) */
141 32, /* bitsize */
142 TRUE, /* pc_relative */
143 0, /* bitpos */
144 complain_overflow_signed, /* complain_on_overflow */
145 sh_elf64_ignore_reloc, /* special_function */
146 "R_SH_REL32", /* name */
147 FALSE, /* partial_inplace */
148 0, /* src_mask */
149 0xffffffff, /* dst_mask */
150 TRUE), /* pcrel_offset */
151
152 /* For 32-bit sh, this is R_SH_DIR8WPN. */
153 EMPTY_HOWTO (3),
154
155 /* For 32-bit sh, this is R_SH_IND12W. */
156 EMPTY_HOWTO (4),
157
158 /* For 32-bit sh, this is R_SH_DIR8WPL. */
159 EMPTY_HOWTO (5),
160
161 /* For 32-bit sh, this is R_SH_DIR8WPZ. */
162 EMPTY_HOWTO (6),
163
164 /* For 32-bit sh, this is R_SH_DIR8BP. */
165 EMPTY_HOWTO (7),
166
167 /* For 32-bit sh, this is R_SH_DIR8W. */
168 EMPTY_HOWTO (8),
169
170 /* For 32-bit sh, this is R_SH_DIR8L. */
171 EMPTY_HOWTO (9),
172
173 EMPTY_HOWTO (10),
174 EMPTY_HOWTO (11),
175 EMPTY_HOWTO (12),
176 EMPTY_HOWTO (13),
177 EMPTY_HOWTO (14),
178 EMPTY_HOWTO (15),
179 EMPTY_HOWTO (16),
180 EMPTY_HOWTO (17),
181 EMPTY_HOWTO (18),
182 EMPTY_HOWTO (19),
183 EMPTY_HOWTO (20),
184 EMPTY_HOWTO (21),
185 EMPTY_HOWTO (22),
186 EMPTY_HOWTO (23),
187 EMPTY_HOWTO (24),
188
189 /* The remaining relocs are a GNU extension used for relaxing. The
190 final pass of the linker never needs to do anything with any of
191 these relocs. Any required operations are handled by the
192 relaxation code. */
193
194 /* A 16 bit switch table entry. This is generated for an expression
195 such as ``.word L1 - L2''. The offset holds the difference
196 between the reloc address and L2. */
197 HOWTO (R_SH_SWITCH16, /* type */
198 0, /* rightshift */
199 1, /* size (0 = byte, 1 = short, 2 = long) */
200 16, /* bitsize */
201 FALSE, /* pc_relative */
202 0, /* bitpos */
203 complain_overflow_unsigned, /* complain_on_overflow */
204 sh_elf64_ignore_reloc, /* special_function */
205 "R_SH_SWITCH16", /* name */
206 FALSE, /* partial_inplace */
207 0, /* src_mask */
208 0, /* dst_mask */
209 TRUE), /* pcrel_offset */
210
211 /* A 32 bit switch table entry. This is generated for an expression
212 such as ``.long L1 - L2''. The offset holds the difference
213 between the reloc address and L2. */
214 HOWTO (R_SH_SWITCH32, /* type */
215 0, /* rightshift */
216 2, /* size (0 = byte, 1 = short, 2 = long) */
217 32, /* bitsize */
218 FALSE, /* pc_relative */
219 0, /* bitpos */
220 complain_overflow_unsigned, /* complain_on_overflow */
221 sh_elf64_ignore_reloc, /* special_function */
222 "R_SH_SWITCH32", /* name */
223 FALSE, /* partial_inplace */
224 0, /* src_mask */
225 0, /* dst_mask */
226 TRUE), /* pcrel_offset */
227
228 /* For 32-bit sh, this is R_SH_USES. */
229 EMPTY_HOWTO (27),
230
231 /* For 32-bit sh, this is R_SH_COUNT. */
232 EMPTY_HOWTO (28),
233
234 /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation,
235 this might be emitted. When linker relaxation is implemented, we
236 might want to use it. */
237 EMPTY_HOWTO (29),
238
239 /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation,
240 this might be emitted. When linker relaxation is implemented, we
241 might want to use it. */
242 EMPTY_HOWTO (30),
243
244 /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation,
245 this might be emitted. When linker relaxation is implemented, we
246 might want to use it. */
247 EMPTY_HOWTO (31),
248
249 /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation,
250 this might be emitted. When linker relaxation is implemented, we
251 might want to use it. */
252 EMPTY_HOWTO (32),
253
254 /* An 8 bit switch table entry. This is generated for an expression
255 such as ``.word L1 - L2''. The offset holds the difference
256 between the reloc address and L2. */
257 HOWTO (R_SH_SWITCH8, /* type */
258 0, /* rightshift */
259 0, /* size (0 = byte, 1 = short, 2 = long) */
260 8, /* bitsize */
261 FALSE, /* pc_relative */
262 0, /* bitpos */
263 complain_overflow_unsigned, /* complain_on_overflow */
264 sh_elf64_ignore_reloc, /* special_function */
265 "R_SH_SWITCH8", /* name */
266 FALSE, /* partial_inplace */
267 0, /* src_mask */
268 0, /* dst_mask */
269 TRUE), /* pcrel_offset */
270
271 /* GNU extension to record C++ vtable hierarchy */
272 HOWTO (R_SH_GNU_VTINHERIT, /* type */
273 0, /* rightshift */
274 2, /* size (0 = byte, 1 = short, 2 = long) */
275 0, /* bitsize */
276 FALSE, /* pc_relative */
277 0, /* bitpos */
278 complain_overflow_dont, /* complain_on_overflow */
279 NULL, /* special_function */
280 "R_SH_GNU_VTINHERIT", /* name */
281 FALSE, /* partial_inplace */
282 0, /* src_mask */
283 0, /* dst_mask */
284 FALSE), /* pcrel_offset */
285
286 /* GNU extension to record C++ vtable member usage */
287 HOWTO (R_SH_GNU_VTENTRY, /* type */
288 0, /* rightshift */
289 2, /* size (0 = byte, 1 = short, 2 = long) */
290 0, /* bitsize */
291 FALSE, /* pc_relative */
292 0, /* bitpos */
293 complain_overflow_dont, /* complain_on_overflow */
294 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
295 "R_SH_GNU_VTENTRY", /* name */
296 FALSE, /* partial_inplace */
297 0, /* src_mask */
298 0, /* dst_mask */
299 FALSE), /* pcrel_offset */
300
301 /* For 32-bit sh, this is R_SH_LOOP_START. */
302 EMPTY_HOWTO (36),
303
304 /* For 32-bit sh, this is R_SH_LOOP_END. */
305 EMPTY_HOWTO (37),
306
307 EMPTY_HOWTO (38),
308 EMPTY_HOWTO (39),
309 EMPTY_HOWTO (40),
310 EMPTY_HOWTO (41),
311 EMPTY_HOWTO (42),
312 EMPTY_HOWTO (43),
313 EMPTY_HOWTO (44),
314
315 /* Used in SHLLI.L and SHLRI.L. */
316 HOWTO (R_SH_DIR5U, /* type */
317 0, /* rightshift */
318 2, /* size (0 = byte, 1 = short, 2 = long) */
319 5, /* bitsize */
320 FALSE, /* pc_relative */
321 10, /* bitpos */
322 complain_overflow_unsigned, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_SH_DIR5U", /* name */
325 FALSE, /* partial_inplace */
326 0, /* src_mask */
327 0xfc00, /* dst_mask */
328 FALSE), /* pcrel_offset */
329
330 /* Used in SHARI, SHLLI et al. */
331 HOWTO (R_SH_DIR6U, /* type */
332 0, /* rightshift */
333 2, /* size (0 = byte, 1 = short, 2 = long) */
334 6, /* bitsize */
335 FALSE, /* pc_relative */
336 10, /* bitpos */
337 complain_overflow_unsigned, /* complain_on_overflow */
338 bfd_elf_generic_reloc, /* special_function */
339 "R_SH_DIR6U", /* name */
340 FALSE, /* partial_inplace */
341 0, /* src_mask */
342 0xfc00, /* dst_mask */
343 FALSE), /* pcrel_offset */
344
345 /* Used in BxxI, LDHI.L et al. */
346 HOWTO (R_SH_DIR6S, /* type */
347 0, /* rightshift */
348 2, /* size (0 = byte, 1 = short, 2 = long) */
349 6, /* bitsize */
350 FALSE, /* pc_relative */
351 10, /* bitpos */
352 complain_overflow_signed, /* complain_on_overflow */
353 bfd_elf_generic_reloc, /* special_function */
354 "R_SH_DIR6S", /* name */
355 FALSE, /* partial_inplace */
356 0, /* src_mask */
357 0xfc00, /* dst_mask */
358 FALSE), /* pcrel_offset */
359
360 /* Used in ADDI, ANDI et al. */
361 HOWTO (R_SH_DIR10S, /* type */
362 0, /* rightshift */
363 2, /* size (0 = byte, 1 = short, 2 = long) */
364 10, /* bitsize */
365 FALSE, /* pc_relative */
366 10, /* bitpos */
367 complain_overflow_signed, /* complain_on_overflow */
368 bfd_elf_generic_reloc, /* special_function */
369 "R_SH_DIR10S", /* name */
370 FALSE, /* partial_inplace */
371 0, /* src_mask */
372 0xffc00, /* dst_mask */
373 FALSE), /* pcrel_offset */
374
375 /* Used in LD.UW, ST.W et al. */
376 HOWTO (R_SH_DIR10SW, /* type */
377 1, /* rightshift */
378 2, /* size (0 = byte, 1 = short, 2 = long) */
379 11, /* bitsize */
380 FALSE, /* pc_relative */
381 10, /* bitpos */
382 complain_overflow_signed, /* complain_on_overflow */
383 bfd_elf_generic_reloc, /* special_function */
384 "R_SH_DIR10SW", /* name */
385 FALSE, /* partial_inplace */
386 0, /* src_mask */
387 0xffc00, /* dst_mask */
388 FALSE), /* pcrel_offset */
389
390 /* Used in LD.L, FLD.S et al. */
391 HOWTO (R_SH_DIR10SL, /* type */
392 2, /* rightshift */
393 2, /* size (0 = byte, 1 = short, 2 = long) */
394 12, /* bitsize */
395 FALSE, /* pc_relative */
396 10, /* bitpos */
397 complain_overflow_signed, /* complain_on_overflow */
398 bfd_elf_generic_reloc, /* special_function */
399 "R_SH_DIR10SL", /* name */
400 FALSE, /* partial_inplace */
401 0, /* src_mask */
402 0xffc00, /* dst_mask */
403 FALSE), /* pcrel_offset */
404
405 /* Used in FLD.D, FST.P et al. */
406 HOWTO (R_SH_DIR10SQ, /* type */
407 3, /* rightshift */
408 2, /* size (0 = byte, 1 = short, 2 = long) */
409 13, /* bitsize */
410 FALSE, /* pc_relative */
411 10, /* bitpos */
412 complain_overflow_signed, /* complain_on_overflow */
413 bfd_elf_generic_reloc, /* special_function */
414 "R_SH_DIR10SQ", /* name */
415 FALSE, /* partial_inplace */
416 0, /* src_mask */
417 0xffc00, /* dst_mask */
418 FALSE), /* pcrel_offset */
419
420 EMPTY_HOWTO (52),
421 EMPTY_HOWTO (53),
422 EMPTY_HOWTO (54),
423 EMPTY_HOWTO (55),
424 EMPTY_HOWTO (56),
425 EMPTY_HOWTO (57),
426 EMPTY_HOWTO (58),
427 EMPTY_HOWTO (59),
428 EMPTY_HOWTO (60),
429 EMPTY_HOWTO (61),
430 EMPTY_HOWTO (62),
431 EMPTY_HOWTO (63),
432 EMPTY_HOWTO (64),
433 EMPTY_HOWTO (65),
434 EMPTY_HOWTO (66),
435 EMPTY_HOWTO (67),
436 EMPTY_HOWTO (68),
437 EMPTY_HOWTO (69),
438 EMPTY_HOWTO (70),
439 EMPTY_HOWTO (71),
440 EMPTY_HOWTO (72),
441 EMPTY_HOWTO (73),
442 EMPTY_HOWTO (74),
443 EMPTY_HOWTO (75),
444 EMPTY_HOWTO (76),
445 EMPTY_HOWTO (77),
446 EMPTY_HOWTO (78),
447 EMPTY_HOWTO (79),
448 EMPTY_HOWTO (80),
449 EMPTY_HOWTO (81),
450 EMPTY_HOWTO (82),
451 EMPTY_HOWTO (83),
452 EMPTY_HOWTO (84),
453 EMPTY_HOWTO (85),
454 EMPTY_HOWTO (86),
455 EMPTY_HOWTO (87),
456 EMPTY_HOWTO (88),
457 EMPTY_HOWTO (89),
458 EMPTY_HOWTO (90),
459 EMPTY_HOWTO (91),
460 EMPTY_HOWTO (92),
461 EMPTY_HOWTO (93),
462 EMPTY_HOWTO (94),
463 EMPTY_HOWTO (95),
464 EMPTY_HOWTO (96),
465 EMPTY_HOWTO (97),
466 EMPTY_HOWTO (98),
467 EMPTY_HOWTO (99),
468 EMPTY_HOWTO (100),
469 EMPTY_HOWTO (101),
470 EMPTY_HOWTO (102),
471 EMPTY_HOWTO (103),
472 EMPTY_HOWTO (104),
473 EMPTY_HOWTO (105),
474 EMPTY_HOWTO (106),
475 EMPTY_HOWTO (107),
476 EMPTY_HOWTO (108),
477 EMPTY_HOWTO (109),
478 EMPTY_HOWTO (110),
479 EMPTY_HOWTO (111),
480 EMPTY_HOWTO (112),
481 EMPTY_HOWTO (113),
482 EMPTY_HOWTO (114),
483 EMPTY_HOWTO (115),
484 EMPTY_HOWTO (116),
485 EMPTY_HOWTO (117),
486 EMPTY_HOWTO (118),
487 EMPTY_HOWTO (119),
488 EMPTY_HOWTO (120),
489 EMPTY_HOWTO (121),
490 EMPTY_HOWTO (122),
491 EMPTY_HOWTO (123),
492 EMPTY_HOWTO (124),
493 EMPTY_HOWTO (125),
494 EMPTY_HOWTO (126),
495 EMPTY_HOWTO (127),
496 EMPTY_HOWTO (128),
497 EMPTY_HOWTO (129),
498 EMPTY_HOWTO (130),
499 EMPTY_HOWTO (131),
500 EMPTY_HOWTO (132),
501 EMPTY_HOWTO (133),
502 EMPTY_HOWTO (134),
503 EMPTY_HOWTO (135),
504 EMPTY_HOWTO (136),
505 EMPTY_HOWTO (137),
506 EMPTY_HOWTO (138),
507 EMPTY_HOWTO (139),
508 EMPTY_HOWTO (140),
509 EMPTY_HOWTO (141),
510 EMPTY_HOWTO (142),
511 EMPTY_HOWTO (143),
512 EMPTY_HOWTO (144),
513 EMPTY_HOWTO (145),
514 EMPTY_HOWTO (146),
515 EMPTY_HOWTO (147),
516 EMPTY_HOWTO (148),
517 EMPTY_HOWTO (149),
518 EMPTY_HOWTO (150),
519 EMPTY_HOWTO (151),
520 EMPTY_HOWTO (152),
521 EMPTY_HOWTO (153),
522 EMPTY_HOWTO (154),
523 EMPTY_HOWTO (155),
524 EMPTY_HOWTO (156),
525 EMPTY_HOWTO (157),
526 EMPTY_HOWTO (158),
527 EMPTY_HOWTO (159),
528
529 /* Relocs for dynamic linking for 32-bit SH would follow. We don't have
530 any dynamic linking support for 64-bit SH at present. */
531
532 EMPTY_HOWTO (160),
533 EMPTY_HOWTO (161),
534 EMPTY_HOWTO (162),
535 EMPTY_HOWTO (163),
536 EMPTY_HOWTO (164),
537 EMPTY_HOWTO (165),
538 EMPTY_HOWTO (166),
539 EMPTY_HOWTO (167),
540 EMPTY_HOWTO (168),
541
542 /* Back to SH5 relocations. */
543 /* Used in MOVI and SHORI (x & 65536). */
544 HOWTO (R_SH_GOT_LOW16, /* type */
545 0, /* rightshift */
546 2, /* size (0 = byte, 1 = short, 2 = long) */
547 64, /* bitsize */
548 FALSE, /* pc_relative */
549 10, /* bitpos */
550 complain_overflow_dont, /* complain_on_overflow */
551 bfd_elf_generic_reloc, /* special_function */
552 "R_SH_GOT_LOW16", /* name */
553 FALSE, /* partial_inplace */
554 0, /* src_mask */
555 0x3fffc00, /* dst_mask */
556 FALSE), /* pcrel_offset */
557
558 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
559 HOWTO (R_SH_GOT_MEDLOW16, /* type */
560 16, /* rightshift */
561 2, /* size (0 = byte, 1 = short, 2 = long) */
562 64, /* bitsize */
563 FALSE, /* pc_relative */
564 10, /* bitpos */
565 complain_overflow_dont, /* complain_on_overflow */
566 bfd_elf_generic_reloc, /* special_function */
567 "R_SH_GOT_MEDLOW16", /* name */
568 FALSE, /* partial_inplace */
569 0, /* src_mask */
570 0x3fffc00, /* dst_mask */
571 FALSE), /* pcrel_offset */
572
573 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
574 HOWTO (R_SH_GOT_MEDHI16, /* type */
575 32, /* rightshift */
576 2, /* size (0 = byte, 1 = short, 2 = long) */
577 64, /* bitsize */
578 FALSE, /* pc_relative */
579 10, /* bitpos */
580 complain_overflow_dont, /* complain_on_overflow */
581 bfd_elf_generic_reloc, /* special_function */
582 "R_SH_GOT_MEDHI16", /* name */
583 FALSE, /* partial_inplace */
584 0, /* src_mask */
585 0x3fffc00, /* dst_mask */
586 FALSE), /* pcrel_offset */
587
588 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
589 HOWTO (R_SH_GOT_HI16, /* type */
590 48, /* rightshift */
591 2, /* size (0 = byte, 1 = short, 2 = long) */
592 64, /* bitsize */
593 FALSE, /* pc_relative */
594 10, /* bitpos */
595 complain_overflow_dont, /* complain_on_overflow */
596 bfd_elf_generic_reloc, /* special_function */
597 "R_SH_GOT_HI16", /* name */
598 FALSE, /* partial_inplace */
599 0, /* src_mask */
600 0x3fffc00, /* dst_mask */
601 FALSE), /* pcrel_offset */
602
603 /* Used in MOVI and SHORI (x & 65536). */
604 HOWTO (R_SH_GOTPLT_LOW16, /* type */
605 0, /* rightshift */
606 2, /* size (0 = byte, 1 = short, 2 = long) */
607 64, /* bitsize */
608 FALSE, /* pc_relative */
609 10, /* bitpos */
610 complain_overflow_dont, /* complain_on_overflow */
611 bfd_elf_generic_reloc, /* special_function */
612 "R_SH_GOTPLT_LOW16", /* name */
613 FALSE, /* partial_inplace */
614 0, /* src_mask */
615 0x3fffc00, /* dst_mask */
616 FALSE), /* pcrel_offset */
617
618 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
619 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */
620 16, /* rightshift */
621 2, /* size (0 = byte, 1 = short, 2 = long) */
622 64, /* bitsize */
623 FALSE, /* pc_relative */
624 10, /* bitpos */
625 complain_overflow_dont, /* complain_on_overflow */
626 bfd_elf_generic_reloc, /* special_function */
627 "R_SH_GOTPLT_MEDLOW16", /* name */
628 FALSE, /* partial_inplace */
629 0, /* src_mask */
630 0x3fffc00, /* dst_mask */
631 FALSE), /* pcrel_offset */
632
633 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
634 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */
635 32, /* rightshift */
636 2, /* size (0 = byte, 1 = short, 2 = long) */
637 64, /* bitsize */
638 FALSE, /* pc_relative */
639 10, /* bitpos */
640 complain_overflow_dont, /* complain_on_overflow */
641 bfd_elf_generic_reloc, /* special_function */
642 "R_SH_GOTPLT_MEDHI16", /* name */
643 FALSE, /* partial_inplace */
644 0, /* src_mask */
645 0x3fffc00, /* dst_mask */
646 FALSE), /* pcrel_offset */
647
648 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
649 HOWTO (R_SH_GOTPLT_HI16, /* type */
650 48, /* rightshift */
651 2, /* size (0 = byte, 1 = short, 2 = long) */
652 64, /* bitsize */
653 FALSE, /* pc_relative */
654 10, /* bitpos */
655 complain_overflow_dont, /* complain_on_overflow */
656 bfd_elf_generic_reloc, /* special_function */
657 "R_SH_GOTPLT_HI16", /* name */
658 FALSE, /* partial_inplace */
659 0, /* src_mask */
660 0x3fffc00, /* dst_mask */
661 FALSE), /* pcrel_offset */
662
663 /* Used in MOVI and SHORI (x & 65536). */
664 HOWTO (R_SH_PLT_LOW16, /* type */
665 0, /* rightshift */
666 2, /* size (0 = byte, 1 = short, 2 = long) */
667 64, /* bitsize */
668 TRUE, /* pc_relative */
669 10, /* bitpos */
670 complain_overflow_dont, /* complain_on_overflow */
671 bfd_elf_generic_reloc, /* special_function */
672 "R_SH_PLT_LOW16", /* name */
673 FALSE, /* partial_inplace */
674 0, /* src_mask */
675 0x3fffc00, /* dst_mask */
676 TRUE), /* pcrel_offset */
677
678 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
679 HOWTO (R_SH_PLT_MEDLOW16, /* type */
680 16, /* rightshift */
681 2, /* size (0 = byte, 1 = short, 2 = long) */
682 64, /* bitsize */
683 TRUE, /* pc_relative */
684 10, /* bitpos */
685 complain_overflow_dont, /* complain_on_overflow */
686 bfd_elf_generic_reloc, /* special_function */
687 "R_SH_PLT_MEDLOW16", /* name */
688 FALSE, /* partial_inplace */
689 0, /* src_mask */
690 0x3fffc00, /* dst_mask */
691 TRUE), /* pcrel_offset */
692
693 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
694 HOWTO (R_SH_PLT_MEDHI16, /* type */
695 32, /* rightshift */
696 2, /* size (0 = byte, 1 = short, 2 = long) */
697 64, /* bitsize */
698 TRUE, /* pc_relative */
699 10, /* bitpos */
700 complain_overflow_dont, /* complain_on_overflow */
701 bfd_elf_generic_reloc, /* special_function */
702 "R_SH_PLT_MEDHI16", /* name */
703 FALSE, /* partial_inplace */
704 0, /* src_mask */
705 0x3fffc00, /* dst_mask */
706 TRUE), /* pcrel_offset */
707
708 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
709 HOWTO (R_SH_PLT_HI16, /* type */
710 48, /* rightshift */
711 2, /* size (0 = byte, 1 = short, 2 = long) */
712 64, /* bitsize */
713 TRUE, /* pc_relative */
714 10, /* bitpos */
715 complain_overflow_dont, /* complain_on_overflow */
716 bfd_elf_generic_reloc, /* special_function */
717 "R_SH_PLT_HI16", /* name */
718 FALSE, /* partial_inplace */
719 0, /* src_mask */
720 0x3fffc00, /* dst_mask */
721 TRUE), /* pcrel_offset */
722
723 /* Used in MOVI and SHORI (x & 65536). */
724 HOWTO (R_SH_GOTOFF_LOW16, /* type */
725 0, /* rightshift */
726 2, /* size (0 = byte, 1 = short, 2 = long) */
727 64, /* bitsize */
728 FALSE, /* pc_relative */
729 10, /* bitpos */
730 complain_overflow_dont, /* complain_on_overflow */
731 bfd_elf_generic_reloc, /* special_function */
732 "R_SH_GOTOFF_LOW16", /* name */
733 FALSE, /* partial_inplace */
734 0, /* src_mask */
735 0x3fffc00, /* dst_mask */
736 FALSE), /* pcrel_offset */
737
738 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
739 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */
740 16, /* rightshift */
741 2, /* size (0 = byte, 1 = short, 2 = long) */
742 64, /* bitsize */
743 FALSE, /* pc_relative */
744 10, /* bitpos */
745 complain_overflow_dont, /* complain_on_overflow */
746 bfd_elf_generic_reloc, /* special_function */
747 "R_SH_GOTOFF_MEDLOW16", /* name */
748 FALSE, /* partial_inplace */
749 0, /* src_mask */
750 0x3fffc00, /* dst_mask */
751 FALSE), /* pcrel_offset */
752
753 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
754 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */
755 32, /* rightshift */
756 2, /* size (0 = byte, 1 = short, 2 = long) */
757 64, /* bitsize */
758 FALSE, /* pc_relative */
759 10, /* bitpos */
760 complain_overflow_dont, /* complain_on_overflow */
761 bfd_elf_generic_reloc, /* special_function */
762 "R_SH_GOTOFF_MEDHI16", /* name */
763 FALSE, /* partial_inplace */
764 0, /* src_mask */
765 0x3fffc00, /* dst_mask */
766 FALSE), /* pcrel_offset */
767
768 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
769 HOWTO (R_SH_GOTOFF_HI16, /* type */
770 48, /* rightshift */
771 2, /* size (0 = byte, 1 = short, 2 = long) */
772 64, /* bitsize */
773 FALSE, /* pc_relative */
774 10, /* bitpos */
775 complain_overflow_dont, /* complain_on_overflow */
776 bfd_elf_generic_reloc, /* special_function */
777 "R_SH_GOTOFF_HI16", /* name */
778 FALSE, /* partial_inplace */
779 0, /* src_mask */
780 0x3fffc00, /* dst_mask */
781 FALSE), /* pcrel_offset */
782
783 /* Used in MOVI and SHORI (x & 65536). */
784 HOWTO (R_SH_GOTPC_LOW16, /* type */
785 0, /* rightshift */
786 2, /* size (0 = byte, 1 = short, 2 = long) */
787 64, /* bitsize */
788 TRUE, /* pc_relative */
789 10, /* bitpos */
790 complain_overflow_dont, /* complain_on_overflow */
791 bfd_elf_generic_reloc, /* special_function */
792 "R_SH_GOTPC_LOW16", /* name */
793 FALSE, /* partial_inplace */
794 0, /* src_mask */
795 0x3fffc00, /* dst_mask */
796 TRUE), /* pcrel_offset */
797
798 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
799 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */
800 16, /* rightshift */
801 2, /* size (0 = byte, 1 = short, 2 = long) */
802 64, /* bitsize */
803 TRUE, /* pc_relative */
804 10, /* bitpos */
805 complain_overflow_dont, /* complain_on_overflow */
806 bfd_elf_generic_reloc, /* special_function */
807 "R_SH_GOTPC_MEDLOW16", /* name */
808 FALSE, /* partial_inplace */
809 0, /* src_mask */
810 0x3fffc00, /* dst_mask */
811 TRUE), /* pcrel_offset */
812
813 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
814 HOWTO (R_SH_GOTPC_MEDHI16, /* type */
815 32, /* rightshift */
816 2, /* size (0 = byte, 1 = short, 2 = long) */
817 64, /* bitsize */
818 TRUE, /* pc_relative */
819 10, /* bitpos */
820 complain_overflow_dont, /* complain_on_overflow */
821 bfd_elf_generic_reloc, /* special_function */
822 "R_SH_GOTPC_MEDHI16", /* name */
823 FALSE, /* partial_inplace */
824 0, /* src_mask */
825 0x3fffc00, /* dst_mask */
826 TRUE), /* pcrel_offset */
827
828 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
829 HOWTO (R_SH_GOTPC_HI16, /* type */
830 48, /* rightshift */
831 2, /* size (0 = byte, 1 = short, 2 = long) */
832 64, /* bitsize */
833 TRUE, /* pc_relative */
834 10, /* bitpos */
835 complain_overflow_dont, /* complain_on_overflow */
836 bfd_elf_generic_reloc, /* special_function */
837 "R_SH_GOTPC_HI16", /* name */
838 FALSE, /* partial_inplace */
839 0, /* src_mask */
840 0x3fffc00, /* dst_mask */
841 TRUE), /* pcrel_offset */
842
843 /* Used in LD.L, FLD.S et al. */
844 HOWTO (R_SH_GOT10BY4, /* type */
845 2, /* rightshift */
846 2, /* size (0 = byte, 1 = short, 2 = long) */
847 12, /* bitsize */
848 FALSE, /* pc_relative */
849 10, /* bitpos */
850 complain_overflow_signed, /* complain_on_overflow */
851 bfd_elf_generic_reloc, /* special_function */
852 "R_SH_GOT10BY4", /* name */
853 FALSE, /* partial_inplace */
854 0, /* src_mask */
855 0xffc00, /* dst_mask */
856 FALSE), /* pcrel_offset */
857
858 /* Used in LD.L, FLD.S et al. */
859 HOWTO (R_SH_GOTPLT10BY4, /* type */
860 2, /* rightshift */
861 2, /* size (0 = byte, 1 = short, 2 = long) */
862 12, /* bitsize */
863 FALSE, /* pc_relative */
864 10, /* bitpos */
865 complain_overflow_signed, /* complain_on_overflow */
866 bfd_elf_generic_reloc, /* special_function */
867 "R_SH_GOTPLT10BY4", /* name */
868 FALSE, /* partial_inplace */
869 0, /* src_mask */
870 0xffc00, /* dst_mask */
871 FALSE), /* pcrel_offset */
872
873 /* Used in FLD.D, FST.P et al. */
874 HOWTO (R_SH_GOT10BY8, /* type */
875 3, /* rightshift */
876 2, /* size (0 = byte, 1 = short, 2 = long) */
877 13, /* bitsize */
878 FALSE, /* pc_relative */
879 10, /* bitpos */
880 complain_overflow_signed, /* complain_on_overflow */
881 bfd_elf_generic_reloc, /* special_function */
882 "R_SH_GOT10BY8", /* name */
883 FALSE, /* partial_inplace */
884 0, /* src_mask */
885 0xffc00, /* dst_mask */
886 FALSE), /* pcrel_offset */
887
888 /* Used in FLD.D, FST.P et al. */
889 HOWTO (R_SH_GOTPLT10BY8, /* type */
890 3, /* rightshift */
891 2, /* size (0 = byte, 1 = short, 2 = long) */
892 13, /* bitsize */
893 FALSE, /* pc_relative */
894 10, /* bitpos */
895 complain_overflow_signed, /* complain_on_overflow */
896 bfd_elf_generic_reloc, /* special_function */
897 "R_SH_GOTPLT10BY8", /* name */
898 FALSE, /* partial_inplace */
899 0, /* src_mask */
900 0xffc00, /* dst_mask */
901 FALSE), /* pcrel_offset */
902
903 HOWTO (R_SH_COPY64, /* type */
904 0, /* rightshift */
905 4, /* size (0 = byte, 1 = short, 2 = long) */
906 64, /* bitsize */
907 FALSE, /* pc_relative */
908 0, /* bitpos */
909 complain_overflow_dont, /* complain_on_overflow */
910 bfd_elf_generic_reloc, /* special_function */
911 "R_SH_COPY64", /* name */
912 FALSE, /* partial_inplace */
913 0, /* src_mask */
914 ((bfd_vma) 0) - 1, /* dst_mask */
915 FALSE), /* pcrel_offset */
916
917 HOWTO (R_SH_GLOB_DAT64, /* type */
918 0, /* rightshift */
919 4, /* size (0 = byte, 1 = short, 2 = long) */
920 64, /* bitsize */
921 FALSE, /* pc_relative */
922 0, /* bitpos */
923 complain_overflow_dont, /* complain_on_overflow */
924 bfd_elf_generic_reloc, /* special_function */
925 "R_SH_GLOB_DAT64", /* name */
926 FALSE, /* partial_inplace */
927 0, /* src_mask */
928 ((bfd_vma) 0) - 1, /* dst_mask */
929 FALSE), /* pcrel_offset */
930
931 HOWTO (R_SH_JMP_SLOT64, /* type */
932 0, /* rightshift */
933 4, /* size (0 = byte, 1 = short, 2 = long) */
934 64, /* bitsize */
935 FALSE, /* pc_relative */
936 0, /* bitpos */
937 complain_overflow_dont, /* complain_on_overflow */
938 bfd_elf_generic_reloc, /* special_function */
939 "R_SH_JMP_SLOT64", /* name */
940 FALSE, /* partial_inplace */
941 0, /* src_mask */
942 ((bfd_vma) 0) - 1, /* dst_mask */
943 FALSE), /* pcrel_offset */
944
945 HOWTO (R_SH_RELATIVE64, /* type */
946 0, /* rightshift */
947 4, /* size (0 = byte, 1 = short, 2 = long) */
948 64, /* bitsize */
949 FALSE, /* pc_relative */
950 0, /* bitpos */
951 complain_overflow_dont, /* complain_on_overflow */
952 bfd_elf_generic_reloc, /* special_function */
953 "R_SH_RELATIVE64", /* name */
954 FALSE, /* partial_inplace */
955 0, /* src_mask */
956 ((bfd_vma) 0) - 1, /* dst_mask */
957 FALSE), /* pcrel_offset */
958
959 EMPTY_HOWTO (197),
960 EMPTY_HOWTO (198),
961 EMPTY_HOWTO (199),
962 EMPTY_HOWTO (200),
963 EMPTY_HOWTO (201),
964 EMPTY_HOWTO (202),
965 EMPTY_HOWTO (203),
966 EMPTY_HOWTO (204),
967 EMPTY_HOWTO (205),
968 EMPTY_HOWTO (206),
969 EMPTY_HOWTO (207),
970 EMPTY_HOWTO (208),
971 EMPTY_HOWTO (209),
972 EMPTY_HOWTO (210),
973 EMPTY_HOWTO (211),
974 EMPTY_HOWTO (212),
975 EMPTY_HOWTO (213),
976 EMPTY_HOWTO (214),
977 EMPTY_HOWTO (215),
978 EMPTY_HOWTO (216),
979 EMPTY_HOWTO (217),
980 EMPTY_HOWTO (218),
981 EMPTY_HOWTO (219),
982 EMPTY_HOWTO (220),
983 EMPTY_HOWTO (221),
984 EMPTY_HOWTO (222),
985 EMPTY_HOWTO (223),
986 EMPTY_HOWTO (224),
987 EMPTY_HOWTO (225),
988 EMPTY_HOWTO (226),
989 EMPTY_HOWTO (227),
990 EMPTY_HOWTO (228),
991 EMPTY_HOWTO (229),
992 EMPTY_HOWTO (230),
993 EMPTY_HOWTO (231),
994 EMPTY_HOWTO (232),
995 EMPTY_HOWTO (233),
996 EMPTY_HOWTO (234),
997 EMPTY_HOWTO (235),
998 EMPTY_HOWTO (236),
999 EMPTY_HOWTO (237),
1000 EMPTY_HOWTO (238),
1001 EMPTY_HOWTO (239),
1002 EMPTY_HOWTO (240),
1003 EMPTY_HOWTO (241),
1004
1005 /* Relocations for SHmedia code. None of these are partial_inplace or
1006 use the field being relocated. */
1007
1008 /* The assembler will generate this reloc before a block of SHmedia
1009 instructions. A section should be processed as assuming it contains
1010 data, unless this reloc is seen. Note that a block of SHcompact
1011 instructions are instead preceded by R_SH_CODE.
1012 This is currently not implemented, but should be used for SHmedia
1013 linker relaxation. */
1014 HOWTO (R_SH_SHMEDIA_CODE, /* type */
1015 0, /* rightshift */
1016 1, /* size (0 = byte, 1 = short, 2 = long) */
1017 0, /* bitsize */
1018 FALSE, /* pc_relative */
1019 0, /* bitpos */
1020 complain_overflow_unsigned, /* complain_on_overflow */
1021 sh_elf64_ignore_reloc, /* special_function */
1022 "R_SH_SHMEDIA_CODE", /* name */
1023 FALSE, /* partial_inplace */
1024 0, /* src_mask */
1025 0, /* dst_mask */
1026 FALSE), /* pcrel_offset */
1027
1028 /* The assembler will generate this reloc at a PTA or PTB instruction,
1029 and the linker checks the right type of target, or changes a PTA to a
1030 PTB, if the original insn was PT. */
1031 HOWTO (R_SH_PT_16, /* type */
1032 2, /* rightshift */
1033 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 18, /* bitsize */
1035 TRUE, /* pc_relative */
1036 10, /* bitpos */
1037 complain_overflow_signed, /* complain_on_overflow */
1038 bfd_elf_generic_reloc, /* special_function */
1039 "R_SH_PT_16", /* name */
1040 FALSE, /* partial_inplace */
1041 0, /* src_mask */
1042 0x3fffc00, /* dst_mask */
1043 TRUE), /* pcrel_offset */
1044
1045 /* Used in unexpanded MOVI. */
1046 HOWTO (R_SH_IMMS16, /* type */
1047 0, /* rightshift */
1048 2, /* size (0 = byte, 1 = short, 2 = long) */
1049 16, /* bitsize */
1050 FALSE, /* pc_relative */
1051 10, /* bitpos */
1052 complain_overflow_signed, /* complain_on_overflow */
1053 bfd_elf_generic_reloc, /* special_function */
1054 "R_SH_IMMS16", /* name */
1055 FALSE, /* partial_inplace */
1056 0, /* src_mask */
1057 0x3fffc00, /* dst_mask */
1058 FALSE), /* pcrel_offset */
1059
1060 /* Used in SHORI. */
1061 HOWTO (R_SH_IMMU16, /* type */
1062 0, /* rightshift */
1063 2, /* size (0 = byte, 1 = short, 2 = long) */
1064 16, /* bitsize */
1065 FALSE, /* pc_relative */
1066 10, /* bitpos */
1067 complain_overflow_unsigned, /* complain_on_overflow */
1068 bfd_elf_generic_reloc, /* special_function */
1069 "R_SH_IMMU16", /* name */
1070 FALSE, /* partial_inplace */
1071 0, /* src_mask */
1072 0x3fffc00, /* dst_mask */
1073 FALSE), /* pcrel_offset */
1074
1075 /* Used in MOVI and SHORI (x & 65536). */
1076 HOWTO (R_SH_IMM_LOW16, /* type */
1077 0, /* rightshift */
1078 2, /* size (0 = byte, 1 = short, 2 = long) */
1079 64, /* bitsize */
1080 FALSE, /* pc_relative */
1081 10, /* bitpos */
1082 complain_overflow_dont, /* complain_on_overflow */
1083 bfd_elf_generic_reloc, /* special_function */
1084 "R_SH_IMM_LOW16", /* name */
1085 FALSE, /* partial_inplace */
1086 0, /* src_mask */
1087 0x3fffc00, /* dst_mask */
1088 FALSE), /* pcrel_offset */
1089
1090 /* Used in MOVI and SHORI ((x - $) & 65536). */
1091 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */
1092 0, /* rightshift */
1093 2, /* size (0 = byte, 1 = short, 2 = long) */
1094 64, /* bitsize */
1095 TRUE, /* pc_relative */
1096 10, /* bitpos */
1097 complain_overflow_dont, /* complain_on_overflow */
1098 bfd_elf_generic_reloc, /* special_function */
1099 "R_SH_IMM_LOW16_PCREL", /* name */
1100 FALSE, /* partial_inplace */
1101 0, /* src_mask */
1102 0x3fffc00, /* dst_mask */
1103 TRUE), /* pcrel_offset */
1104
1105 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1106 HOWTO (R_SH_IMM_MEDLOW16, /* type */
1107 16, /* rightshift */
1108 2, /* size (0 = byte, 1 = short, 2 = long) */
1109 64, /* bitsize */
1110 FALSE, /* pc_relative */
1111 10, /* bitpos */
1112 complain_overflow_dont, /* complain_on_overflow */
1113 bfd_elf_generic_reloc, /* special_function */
1114 "R_SH_IMM_MEDLOW16", /* name */
1115 FALSE, /* partial_inplace */
1116 0, /* src_mask */
1117 0x3fffc00, /* dst_mask */
1118 FALSE), /* pcrel_offset */
1119
1120 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
1121 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
1122 16, /* rightshift */
1123 2, /* size (0 = byte, 1 = short, 2 = long) */
1124 64, /* bitsize */
1125 TRUE, /* pc_relative */
1126 10, /* bitpos */
1127 complain_overflow_dont, /* complain_on_overflow */
1128 bfd_elf_generic_reloc, /* special_function */
1129 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1130 FALSE, /* partial_inplace */
1131 0, /* src_mask */
1132 0x3fffc00, /* dst_mask */
1133 TRUE), /* pcrel_offset */
1134
1135 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1136 HOWTO (R_SH_IMM_MEDHI16, /* type */
1137 32, /* rightshift */
1138 2, /* size (0 = byte, 1 = short, 2 = long) */
1139 64, /* bitsize */
1140 FALSE, /* pc_relative */
1141 10, /* bitpos */
1142 complain_overflow_dont, /* complain_on_overflow */
1143 bfd_elf_generic_reloc, /* special_function */
1144 "R_SH_IMM_MEDHI16", /* name */
1145 FALSE, /* partial_inplace */
1146 0, /* src_mask */
1147 0x3fffc00, /* dst_mask */
1148 FALSE), /* pcrel_offset */
1149
1150 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
1151 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
1152 32, /* rightshift */
1153 2, /* size (0 = byte, 1 = short, 2 = long) */
1154 64, /* bitsize */
1155 TRUE, /* pc_relative */
1156 10, /* bitpos */
1157 complain_overflow_dont, /* complain_on_overflow */
1158 bfd_elf_generic_reloc, /* special_function */
1159 "R_SH_IMM_MEDHI16_PCREL", /* name */
1160 FALSE, /* partial_inplace */
1161 0, /* src_mask */
1162 0x3fffc00, /* dst_mask */
1163 TRUE), /* pcrel_offset */
1164
1165 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1166 HOWTO (R_SH_IMM_HI16, /* type */
1167 48, /* rightshift */
1168 2, /* size (0 = byte, 1 = short, 2 = long) */
1169 64, /* bitsize */
1170 FALSE, /* pc_relative */
1171 10, /* bitpos */
1172 complain_overflow_dont, /* complain_on_overflow */
1173 bfd_elf_generic_reloc, /* special_function */
1174 "R_SH_IMM_HI16", /* name */
1175 FALSE, /* partial_inplace */
1176 0, /* src_mask */
1177 0x3fffc00, /* dst_mask */
1178 FALSE), /* pcrel_offset */
1179
1180 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
1181 HOWTO (R_SH_IMM_HI16_PCREL, /* type */
1182 48, /* rightshift */
1183 2, /* size (0 = byte, 1 = short, 2 = long) */
1184 64, /* bitsize */
1185 TRUE, /* pc_relative */
1186 10, /* bitpos */
1187 complain_overflow_dont, /* complain_on_overflow */
1188 bfd_elf_generic_reloc, /* special_function */
1189 "R_SH_IMM_HI16_PCREL", /* name */
1190 FALSE, /* partial_inplace */
1191 0, /* src_mask */
1192 0x3fffc00, /* dst_mask */
1193 TRUE), /* pcrel_offset */
1194
1195 /* For the .uaquad pseudo. */
1196 HOWTO (R_SH_64, /* type */
1197 0, /* rightshift */
1198 4, /* size (0 = byte, 1 = short, 2 = long) */
1199 64, /* bitsize */
1200 FALSE, /* pc_relative */
1201 0, /* bitpos */
1202 complain_overflow_dont, /* complain_on_overflow */
1203 bfd_elf_generic_reloc, /* special_function */
1204 "R_SH_64", /* name */
1205 FALSE, /* partial_inplace */
1206 0, /* src_mask */
1207 ((bfd_vma) 0) - 1, /* dst_mask */
1208 FALSE), /* pcrel_offset */
1209
1210 /* For the .uaquad pseudo, (x - $). */
1211 HOWTO (R_SH_64_PCREL, /* type */
1212 48, /* rightshift */
1213 2, /* size (0 = byte, 1 = short, 2 = long) */
1214 64, /* bitsize */
1215 TRUE, /* pc_relative */
1216 10, /* bitpos */
1217 complain_overflow_dont, /* complain_on_overflow */
1218 bfd_elf_generic_reloc, /* special_function */
1219 "R_SH_64_PCREL", /* name */
1220 FALSE, /* partial_inplace */
1221 0, /* src_mask */
1222 ((bfd_vma) 0) - 1, /* dst_mask */
1223 TRUE), /* pcrel_offset */
1224
1225 };
1226
1227 /* This function is used for relocs which are only used for relaxing,
1228 which the linker should otherwise ignore. */
1229
1230 static bfd_reloc_status_type
1231 sh_elf64_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
1232 asymbol *symbol ATTRIBUTE_UNUSED,
1233 void *data ATTRIBUTE_UNUSED, asection *input_section,
1234 bfd *output_bfd,
1235 char **error_message ATTRIBUTE_UNUSED)
1236 {
1237 if (output_bfd != NULL)
1238 reloc_entry->address += input_section->output_offset;
1239 return bfd_reloc_ok;
1240 }
1241
1242 /* This function is used for normal relocs. This used to be like the COFF
1243 function, and is almost certainly incorrect for other ELF targets.
1244
1245 See sh_elf_reloc in elf32-sh.c for the original. */
1246
1247 static bfd_reloc_status_type
1248 sh_elf64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
1249 void *data, asection *input_section, bfd *output_bfd,
1250 char **error_message ATTRIBUTE_UNUSED)
1251 {
1252 unsigned long insn;
1253 bfd_vma sym_value;
1254 enum elf_sh_reloc_type r_type;
1255 bfd_vma addr = reloc_entry->address;
1256 bfd_byte *hit_data = addr + (bfd_byte *) data;
1257
1258 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
1259
1260 if (output_bfd != NULL)
1261 {
1262 /* Partial linking--do nothing. */
1263 reloc_entry->address += input_section->output_offset;
1264 return bfd_reloc_ok;
1265 }
1266
1267 if (symbol_in != NULL
1268 && bfd_is_und_section (symbol_in->section))
1269 return bfd_reloc_undefined;
1270
1271 if (bfd_is_com_section (symbol_in->section))
1272 sym_value = 0;
1273 else
1274 sym_value = (symbol_in->value +
1275 symbol_in->section->output_section->vma +
1276 symbol_in->section->output_offset);
1277
1278 switch (r_type)
1279 {
1280 case R_SH_DIR32:
1281 insn = bfd_get_32 (abfd, hit_data);
1282 insn += sym_value + reloc_entry->addend;
1283 bfd_put_32 (abfd, insn, hit_data);
1284 break;
1285
1286 default:
1287 abort ();
1288 break;
1289 }
1290
1291 return bfd_reloc_ok;
1292 }
1293
1294 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
1295
1296 struct elf_reloc_map
1297 {
1298 bfd_reloc_code_real_type bfd_reloc_val;
1299 unsigned char elf_reloc_val;
1300 };
1301
1302 /* An array mapping BFD reloc codes to SH ELF relocs. */
1303
1304 static const struct elf_reloc_map sh64_reloc_map[] =
1305 {
1306 { BFD_RELOC_NONE, R_SH_NONE },
1307 { BFD_RELOC_32, R_SH_DIR32 },
1308 { BFD_RELOC_CTOR, R_SH_DIR32 },
1309 { BFD_RELOC_32_PCREL, R_SH_REL32 },
1310 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
1311 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
1312 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
1313 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
1314 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
1315 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
1316 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
1317 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
1318 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
1319 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
1320 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
1321 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
1322 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
1323 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
1324 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
1325 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
1326 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
1327 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
1328 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
1329 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
1330 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
1331 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
1332 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
1333 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
1334 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
1335 { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
1336 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
1337 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
1338 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
1339 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
1340 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
1341 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
1342 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
1343 { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
1344 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
1345 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
1346 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
1347 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
1348 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
1349 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
1350 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
1351 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
1352 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
1353 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
1354 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
1355 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
1356 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
1357 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
1358 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
1359 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
1360 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
1361 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
1362 { BFD_RELOC_64, R_SH_64 },
1363 { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
1364 };
1365
1366 /* Given a BFD reloc code, return the howto structure for the
1367 corresponding SH ELf reloc. */
1368
1369 static reloc_howto_type *
1370 sh_elf64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1371 bfd_reloc_code_real_type code)
1372 {
1373 unsigned int i;
1374
1375 for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++)
1376 {
1377 if (sh64_reloc_map[i].bfd_reloc_val == code)
1378 return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val];
1379 }
1380
1381 return NULL;
1382 }
1383
1384 static reloc_howto_type *
1385 sh_elf64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1386 const char *r_name)
1387 {
1388 unsigned int i;
1389
1390 for (i = 0;
1391 i < sizeof (sh_elf64_howto_table) / sizeof (sh_elf64_howto_table[0]);
1392 i++)
1393 if (sh_elf64_howto_table[i].name != NULL
1394 && strcasecmp (sh_elf64_howto_table[i].name, r_name) == 0)
1395 return &sh_elf64_howto_table[i];
1396
1397 return NULL;
1398 }
1399
1400 /* Given an ELF reloc, fill in the howto field of a relent.
1401
1402 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1403
1404 static void
1405 sh_elf64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
1406 Elf_Internal_Rela *dst)
1407 {
1408 unsigned int r;
1409
1410 r = ELF64_R_TYPE (dst->r_info);
1411
1412 BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL);
1413 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
1414 BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2);
1415 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32);
1416 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
1417
1418 cache_ptr->howto = &sh_elf64_howto_table[r];
1419 }
1420
1421 /* Relocate an SH ELF section.
1422
1423 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1424
1425 static bfd_boolean
1426 sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
1427 struct bfd_link_info *info, bfd *input_bfd,
1428 asection *input_section, bfd_byte *contents,
1429 Elf_Internal_Rela *relocs,
1430 Elf_Internal_Sym *local_syms,
1431 asection **local_sections)
1432 {
1433 Elf_Internal_Shdr *symtab_hdr;
1434 struct elf_link_hash_entry **sym_hashes;
1435 Elf_Internal_Rela *rel, *relend;
1436 bfd *dynobj;
1437 bfd_vma *local_got_offsets;
1438 asection *sgot;
1439 asection *sgotplt;
1440 asection *splt;
1441 asection *sreloc;
1442 bfd_vma disp, dropped;
1443
1444 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1445 sym_hashes = elf_sym_hashes (input_bfd);
1446 dynobj = elf_hash_table (info)->dynobj;
1447 local_got_offsets = elf_local_got_offsets (input_bfd);
1448
1449 sgot = NULL;
1450 sgotplt = NULL;
1451 splt = NULL;
1452 sreloc = NULL;
1453
1454 rel = relocs;
1455 relend = relocs + input_section->reloc_count;
1456 for (; rel < relend; rel++)
1457 {
1458 int r_type;
1459 reloc_howto_type *howto;
1460 unsigned long r_symndx;
1461 Elf_Internal_Sym *sym;
1462 asection *sec;
1463 struct elf_link_hash_entry *h;
1464 bfd_vma relocation;
1465 bfd_vma addend = (bfd_vma)0;
1466 bfd_reloc_status_type r;
1467 int seen_stt_datalabel = 0;
1468
1469 r_symndx = ELF64_R_SYM (rel->r_info);
1470
1471 r_type = ELF64_R_TYPE (rel->r_info);
1472
1473 if (r_type == (int) R_SH_NONE)
1474 continue;
1475
1476 if (r_type < 0
1477 || r_type > R_SH_64_PCREL
1478 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
1479 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1480 || (r_type >= (int) R_SH_DIR8WPN
1481 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1482 || (r_type >= (int) R_SH_GNU_VTINHERIT
1483 && r_type <= (int) R_SH_PSHL)
1484 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
1485 && r_type <= R_SH_GOTPLT32)
1486 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
1487 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4))
1488 {
1489 bfd_set_error (bfd_error_bad_value);
1490 return FALSE;
1491 }
1492
1493 howto = sh_elf64_howto_table + r_type;
1494
1495 h = NULL;
1496 sym = NULL;
1497 sec = NULL;
1498 relocation = 0;
1499 if (r_symndx < symtab_hdr->sh_info)
1500 {
1501 sym = local_syms + r_symndx;
1502 sec = local_sections[r_symndx];
1503 relocation = ((sec->output_section->vma
1504 + sec->output_offset
1505 + sym->st_value)
1506 | ((sym->st_other & STO_SH5_ISA32) != 0));
1507
1508 /* A local symbol never has STO_SH5_ISA32, so we don't need
1509 datalabel processing here. Make sure this does not change
1510 without notice. */
1511 if ((sym->st_other & STO_SH5_ISA32) != 0)
1512 ((*info->callbacks->reloc_dangerous)
1513 (info,
1514 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
1515 input_bfd, input_section, rel->r_offset));
1516
1517 if (sec != NULL && discarded_section (sec))
1518 /* Handled below. */
1519 ;
1520 else if (info->relocatable)
1521 {
1522 /* This is a relocatable link. We don't have to change
1523 anything, unless the reloc is against a section symbol,
1524 in which case we have to adjust according to where the
1525 section symbol winds up in the output section. */
1526 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1527 goto final_link_relocate;
1528
1529 continue;
1530 }
1531 else if (! howto->partial_inplace)
1532 {
1533 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1534 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0);
1535 }
1536 else if ((sec->flags & SEC_MERGE)
1537 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1538 {
1539 asection *msec;
1540
1541 if (howto->rightshift || howto->src_mask != 0xffffffff)
1542 {
1543 (*_bfd_error_handler)
1544 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
1545 input_bfd, input_section,
1546 (long) rel->r_offset, howto->name);
1547 return FALSE;
1548 }
1549
1550 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1551 msec = sec;
1552 addend =
1553 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1554 - relocation;
1555 addend += msec->output_section->vma + msec->output_offset;
1556 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1557 addend = 0;
1558 }
1559 }
1560 else
1561 {
1562 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1563
1564 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1565 while (h->root.type == bfd_link_hash_indirect
1566 || h->root.type == bfd_link_hash_warning)
1567 {
1568 /* If the reference passes a symbol marked with
1569 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1570 doesn't count. */
1571 seen_stt_datalabel |= h->type == STT_DATALABEL;
1572 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1573 }
1574
1575 if (h->root.type == bfd_link_hash_defined
1576 || h->root.type == bfd_link_hash_defweak)
1577 {
1578 sec = h->root.u.def.section;
1579 /* In these cases, we don't need the relocation value.
1580 We check specially because in some obscure cases
1581 sec->output_section will be NULL. */
1582 if (r_type == R_SH_GOTPC_LOW16
1583 || r_type == R_SH_GOTPC_MEDLOW16
1584 || r_type == R_SH_GOTPC_MEDHI16
1585 || r_type == R_SH_GOTPC_HI16
1586 || ((r_type == R_SH_PLT_LOW16
1587 || r_type == R_SH_PLT_MEDLOW16
1588 || r_type == R_SH_PLT_MEDHI16
1589 || r_type == R_SH_PLT_HI16)
1590 && h->plt.offset != (bfd_vma) -1)
1591 || ((r_type == R_SH_GOT_LOW16
1592 || r_type == R_SH_GOT_MEDLOW16
1593 || r_type == R_SH_GOT_MEDHI16
1594 || r_type == R_SH_GOT_HI16)
1595 && elf_hash_table (info)->dynamic_sections_created
1596 && (! info->shared
1597 || (! info->symbolic && h->dynindx != -1)
1598 || !h->def_regular))
1599 /* The cases above are those in which relocation is
1600 overwritten in the switch block below. The cases
1601 below are those in which we must defer relocation
1602 to run-time, because we can't resolve absolute
1603 addresses when creating a shared library. */
1604 || (info->shared
1605 && ((! info->symbolic && h->dynindx != -1)
1606 || !h->def_regular)
1607 && ((r_type == R_SH_64
1608 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1609 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1610 || r_type == R_SH_64_PCREL)
1611 && ((input_section->flags & SEC_ALLOC) != 0
1612 /* DWARF will emit R_SH_DIR32 relocations in its
1613 sections against symbols defined externally
1614 in shared libraries. We can't do anything
1615 with them here. */
1616 || (input_section->flags & SEC_DEBUGGING) != 0))
1617 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1618 sections because such sections are not SEC_ALLOC and
1619 thus ld.so will not process them. */
1620 || (sec->output_section == NULL
1621 && ((input_section->flags & SEC_DEBUGGING) != 0
1622 && h->def_dynamic)))
1623 ;
1624 else if (sec->output_section != NULL)
1625 relocation = ((h->root.u.def.value
1626 + sec->output_section->vma
1627 + sec->output_offset)
1628 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1629 symbol value, unless we've seen
1630 STT_DATALABEL on the way to it. */
1631 | ((h->other & STO_SH5_ISA32) != 0
1632 && ! seen_stt_datalabel));
1633 else if (!info->relocatable
1634 && (_bfd_elf_section_offset (output_bfd, info,
1635 input_section,
1636 rel->r_offset)
1637 != (bfd_vma) -1))
1638 {
1639 (*_bfd_error_handler)
1640 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
1641 input_bfd,
1642 input_section,
1643 (long) rel->r_offset,
1644 howto->name,
1645 h->root.root.string);
1646 }
1647 }
1648 else if (h->root.type == bfd_link_hash_undefweak)
1649 ;
1650 else if (info->unresolved_syms_in_objects == RM_IGNORE
1651 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1652 ;
1653 else if (!info->relocatable)
1654 {
1655 if (! ((*info->callbacks->undefined_symbol)
1656 (info, h->root.root.string, input_bfd,
1657 input_section, rel->r_offset,
1658 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1659 || ELF_ST_VISIBILITY (h->other)))))
1660 return FALSE;
1661 }
1662 }
1663
1664 if (sec != NULL && discarded_section (sec))
1665 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1666 rel, 1, relend, howto, 0, contents);
1667
1668 if (info->relocatable)
1669 continue;
1670
1671 disp = (relocation
1672 - input_section->output_section->vma
1673 - input_section->output_offset
1674 - rel->r_offset);
1675 dropped = 0;
1676 switch ((int)r_type)
1677 {
1678 case R_SH_PT_16: dropped = disp & 2; break;
1679 case R_SH_DIR10SW: dropped = disp & 1; break;
1680 case R_SH_DIR10SL: dropped = disp & 3; break;
1681 case R_SH_DIR10SQ: dropped = disp & 7; break;
1682 }
1683 if (dropped != 0)
1684 {
1685 (*_bfd_error_handler)
1686 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
1687 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation);
1688 bfd_set_error (bfd_error_bad_value);
1689 return FALSE;
1690 }
1691 switch ((int)r_type)
1692 {
1693 case R_SH_64:
1694 case R_SH_64_PCREL:
1695 if (info->shared
1696 && (input_section->flags & SEC_ALLOC) != 0
1697 && (r_type != R_SH_64_PCREL
1698 || (h != NULL
1699 && h->dynindx != -1
1700 && (! info->symbolic
1701 || !h->def_regular))))
1702 {
1703 Elf_Internal_Rela outrel;
1704 bfd_byte *loc;
1705 bfd_boolean skip, relocate;
1706
1707 /* When generating a shared object, these relocations
1708 are copied into the output file to be resolved at run
1709 time. */
1710
1711 if (sreloc == NULL)
1712 {
1713 sreloc = _bfd_elf_get_dynamic_reloc_section
1714 (input_bfd, input_section, /*rela?*/ TRUE);
1715 if (sreloc == NULL)
1716 return FALSE;
1717 }
1718
1719 skip = FALSE;
1720 relocate = FALSE;
1721
1722 outrel.r_offset
1723 = _bfd_elf_section_offset (output_bfd, info,
1724 input_section, rel->r_offset);
1725
1726 if (outrel.r_offset == (bfd_vma) -1)
1727 skip = TRUE;
1728 else if (outrel.r_offset == (bfd_vma) -2)
1729 skip = TRUE, relocate = TRUE;
1730
1731 outrel.r_offset += (input_section->output_section->vma
1732 + input_section->output_offset);
1733
1734 if (skip)
1735 memset (&outrel, 0, sizeof outrel);
1736 else if (r_type == R_SH_64_PCREL)
1737 {
1738 BFD_ASSERT (h != NULL && h->dynindx != -1);
1739 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1740 outrel.r_addend = rel->r_addend;
1741 }
1742 else
1743 {
1744 /* h->dynindx may be -1 if this symbol was marked to
1745 become local. */
1746 if (h == NULL
1747 || ((info->symbolic || h->dynindx == -1)
1748 && h->def_regular))
1749 {
1750 relocate = TRUE;
1751 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1752 outrel.r_addend = relocation + rel->r_addend;
1753 }
1754 else
1755 {
1756 BFD_ASSERT (h->dynindx != -1);
1757 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1758 outrel.r_addend = relocation + rel->r_addend;
1759 }
1760 }
1761
1762 loc = sreloc->contents;
1763 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1764 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1765
1766 /* If this reloc is against an external symbol, we do
1767 not want to fiddle with the addend. Otherwise, we
1768 need to include the symbol value so that it becomes
1769 an addend for the dynamic reloc. */
1770 if (! relocate)
1771 continue;
1772 }
1773 else if (r_type == R_SH_64)
1774 addend = rel->r_addend;
1775 goto final_link_relocate;
1776
1777 case R_SH_GOTPLT_LOW16:
1778 case R_SH_GOTPLT_MEDLOW16:
1779 case R_SH_GOTPLT_MEDHI16:
1780 case R_SH_GOTPLT_HI16:
1781 case R_SH_GOTPLT10BY4:
1782 case R_SH_GOTPLT10BY8:
1783 /* Relocation is to the entry for this symbol in the
1784 procedure linkage table. */
1785
1786 if (h == NULL
1787 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1788 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1789 || ! info->shared
1790 || info->symbolic
1791 || h->dynindx == -1
1792 || h->plt.offset == (bfd_vma) -1
1793 || h->got.offset != (bfd_vma) -1)
1794 goto force_got;
1795
1796 /* Relocation is to the entry for this symbol in the global
1797 offset table extension for the procedure linkage table. */
1798 if (sgotplt == NULL)
1799 {
1800 sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
1801 BFD_ASSERT (sgotplt != NULL);
1802 }
1803
1804 relocation = (sgotplt->output_offset
1805 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1806 - 1 + 3) * 8));
1807
1808 relocation -= GOT_BIAS;
1809
1810 goto final_link_relocate;
1811
1812 force_got:
1813 case R_SH_GOT_LOW16:
1814 case R_SH_GOT_MEDLOW16:
1815 case R_SH_GOT_MEDHI16:
1816 case R_SH_GOT_HI16:
1817 case R_SH_GOT10BY4:
1818 case R_SH_GOT10BY8:
1819 /* Relocation is to the entry for this symbol in the global
1820 offset table. */
1821 if (sgot == NULL)
1822 {
1823 sgot = bfd_get_linker_section (dynobj, ".got");
1824 BFD_ASSERT (sgot != NULL);
1825 }
1826
1827 if (h != NULL)
1828 {
1829 bfd_vma off;
1830
1831 off = h->got.offset;
1832 if (seen_stt_datalabel)
1833 {
1834 struct elf_sh64_link_hash_entry *hsh;
1835
1836 hsh = (struct elf_sh64_link_hash_entry *)h;
1837 off = hsh->datalabel_got_offset;
1838 }
1839 BFD_ASSERT (off != (bfd_vma) -1);
1840
1841 if (! elf_hash_table (info)->dynamic_sections_created
1842 || (info->shared
1843 && (info->symbolic || h->dynindx == -1
1844 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1845 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1846 && h->def_regular))
1847 {
1848 /* This is actually a static link, or it is a
1849 -Bsymbolic link and the symbol is defined
1850 locally, or the symbol was forced to be local
1851 because of a version file. We must initialize
1852 this entry in the global offset table. Since the
1853 offset must always be a multiple of 4, we use the
1854 least significant bit to record whether we have
1855 initialized it already.
1856
1857 When doing a dynamic link, we create a .rela.got
1858 relocation entry to initialize the value. This
1859 is done in the finish_dynamic_symbol routine. */
1860 if ((off & 1) != 0)
1861 off &= ~1;
1862 else
1863 {
1864 bfd_put_64 (output_bfd, relocation,
1865 sgot->contents + off);
1866 if (seen_stt_datalabel)
1867 {
1868 struct elf_sh64_link_hash_entry *hsh;
1869
1870 hsh = (struct elf_sh64_link_hash_entry *)h;
1871 hsh->datalabel_got_offset |= 1;
1872 }
1873 else
1874 h->got.offset |= 1;
1875 }
1876 }
1877
1878 relocation = sgot->output_offset + off;
1879 }
1880 else
1881 {
1882 bfd_vma off;
1883
1884 if (rel->r_addend)
1885 {
1886 BFD_ASSERT (local_got_offsets != NULL
1887 && (local_got_offsets[symtab_hdr->sh_info
1888 + r_symndx]
1889 != (bfd_vma) -1));
1890
1891 off = local_got_offsets[symtab_hdr->sh_info
1892 + r_symndx];
1893 }
1894 else
1895 {
1896 BFD_ASSERT (local_got_offsets != NULL
1897 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1898
1899 off = local_got_offsets[r_symndx];
1900 }
1901
1902 /* The offset must always be a multiple of 8. We use
1903 the least significant bit to record whether we have
1904 already generated the necessary reloc. */
1905 if ((off & 1) != 0)
1906 off &= ~1;
1907 else
1908 {
1909 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1910
1911 if (info->shared)
1912 {
1913 asection *s;
1914 Elf_Internal_Rela outrel;
1915 bfd_byte *loc;
1916
1917 s = bfd_get_linker_section (dynobj, ".rela.got");
1918 BFD_ASSERT (s != NULL);
1919
1920 outrel.r_offset = (sgot->output_section->vma
1921 + sgot->output_offset
1922 + off);
1923 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1924 outrel.r_addend = relocation;
1925 loc = s->contents;
1926 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1927 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1928 }
1929
1930 if (rel->r_addend)
1931 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1932 else
1933 local_got_offsets[r_symndx] |= 1;
1934 }
1935
1936 relocation = sgot->output_offset + off;
1937 }
1938
1939 relocation -= GOT_BIAS;
1940
1941 goto final_link_relocate;
1942
1943 case R_SH_GOTOFF_LOW16:
1944 case R_SH_GOTOFF_MEDLOW16:
1945 case R_SH_GOTOFF_MEDHI16:
1946 case R_SH_GOTOFF_HI16:
1947 /* Relocation is relative to the start of the global offset
1948 table. */
1949
1950 if (sgot == NULL)
1951 {
1952 sgot = bfd_get_linker_section (dynobj, ".got");
1953 BFD_ASSERT (sgot != NULL);
1954 }
1955
1956 /* Note that sgot->output_offset is not involved in this
1957 calculation. We always want the start of .got. If we
1958 defined _GLOBAL_OFFSET_TABLE in a different way, as is
1959 permitted by the ABI, we might have to change this
1960 calculation. */
1961 relocation -= sgot->output_section->vma;
1962
1963 relocation -= GOT_BIAS;
1964
1965 addend = rel->r_addend;
1966
1967 goto final_link_relocate;
1968
1969 case R_SH_GOTPC_LOW16:
1970 case R_SH_GOTPC_MEDLOW16:
1971 case R_SH_GOTPC_MEDHI16:
1972 case R_SH_GOTPC_HI16:
1973 /* Use global offset table as symbol value. */
1974
1975 if (sgot == NULL)
1976 {
1977 sgot = bfd_get_linker_section (dynobj, ".got");
1978 BFD_ASSERT (sgot != NULL);
1979 }
1980
1981 relocation = sgot->output_section->vma;
1982
1983 relocation += GOT_BIAS;
1984
1985 addend = rel->r_addend;
1986
1987 goto final_link_relocate;
1988
1989 case R_SH_PLT_LOW16:
1990 case R_SH_PLT_MEDLOW16:
1991 case R_SH_PLT_MEDHI16:
1992 case R_SH_PLT_HI16:
1993 /* Relocation is to the entry for this symbol in the
1994 procedure linkage table. */
1995
1996 /* Resolve a PLT reloc against a local symbol directly,
1997 without using the procedure linkage table. */
1998 if (h == NULL)
1999 goto final_link_relocate;
2000
2001 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2002 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2003 goto final_link_relocate;
2004
2005 if (h->plt.offset == (bfd_vma) -1)
2006 {
2007 /* We didn't make a PLT entry for this symbol. This
2008 happens when statically linking PIC code, or when
2009 using -Bsymbolic. */
2010 goto final_link_relocate;
2011 }
2012
2013 if (splt == NULL)
2014 {
2015 splt = bfd_get_linker_section (dynobj, ".plt");
2016 BFD_ASSERT (splt != NULL);
2017 }
2018
2019 relocation = (splt->output_section->vma
2020 + splt->output_offset
2021 + h->plt.offset);
2022 relocation++;
2023
2024 addend = rel->r_addend;
2025
2026 goto final_link_relocate;
2027
2028 case R_SH_DIR32:
2029 case R_SH_SHMEDIA_CODE:
2030 case R_SH_PT_16:
2031 case R_SH_DIR5U:
2032 case R_SH_DIR6S:
2033 case R_SH_DIR6U:
2034 case R_SH_DIR10S:
2035 case R_SH_DIR10SW:
2036 case R_SH_DIR10SL:
2037 case R_SH_DIR10SQ:
2038 case R_SH_IMMS16:
2039 case R_SH_IMMU16:
2040 case R_SH_IMM_LOW16:
2041 case R_SH_IMM_LOW16_PCREL:
2042 case R_SH_IMM_MEDLOW16:
2043 case R_SH_IMM_MEDLOW16_PCREL:
2044 case R_SH_IMM_MEDHI16:
2045 case R_SH_IMM_MEDHI16_PCREL:
2046 case R_SH_IMM_HI16:
2047 case R_SH_IMM_HI16_PCREL:
2048 addend = rel->r_addend;
2049 /* Fall through. */
2050 case R_SH_REL32:
2051 final_link_relocate:
2052 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2053 contents, rel->r_offset,
2054 relocation, addend);
2055 break;
2056
2057 default:
2058 bfd_set_error (bfd_error_bad_value);
2059 return FALSE;
2060
2061 }
2062
2063 if (r != bfd_reloc_ok)
2064 {
2065 switch (r)
2066 {
2067 default:
2068 case bfd_reloc_outofrange:
2069 abort ();
2070 case bfd_reloc_overflow:
2071 {
2072 const char *name;
2073
2074 if (h != NULL)
2075 name = NULL;
2076 else
2077 {
2078 name = (bfd_elf_string_from_elf_section
2079 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2080 if (name == NULL)
2081 return FALSE;
2082 if (*name == '\0')
2083 name = bfd_section_name (input_bfd, sec);
2084 }
2085 if (! ((*info->callbacks->reloc_overflow)
2086 (info, (h ? &h->root : NULL), name, howto->name,
2087 (bfd_vma) 0, input_bfd, input_section,
2088 rel->r_offset)))
2089 return FALSE;
2090 }
2091 break;
2092 }
2093 }
2094 }
2095
2096 return TRUE;
2097 }
2098
2099 /* This is a version of bfd_generic_get_relocated_section_contents
2100 that uses sh_elf64_relocate_section.
2101
2102 See sh_elf_relocate_section in elf32-sh.c for the original. */
2103
2104 static bfd_byte *
2105 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2106 struct bfd_link_info *link_info,
2107 struct bfd_link_order *link_order,
2108 bfd_byte *data,
2109 bfd_boolean relocatable,
2110 asymbol **symbols)
2111 {
2112 Elf_Internal_Shdr *symtab_hdr;
2113 asection *input_section = link_order->u.indirect.section;
2114 bfd *input_bfd = input_section->owner;
2115 asection **sections = NULL;
2116 Elf_Internal_Rela *internal_relocs = NULL;
2117 Elf_Internal_Sym *isymbuf = NULL;
2118
2119 /* We only need to handle the case of relaxing, or of having a
2120 particular set of section contents, specially. */
2121 if (relocatable
2122 || elf_section_data (input_section)->this_hdr.contents == NULL)
2123 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2124 link_order, data,
2125 relocatable,
2126 symbols);
2127
2128 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2129
2130 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2131 input_section->size);
2132
2133 if ((input_section->flags & SEC_RELOC) != 0
2134 && input_section->reloc_count > 0)
2135 {
2136 Elf_Internal_Sym *isymp;
2137 Elf_Internal_Sym *isymend;
2138 asection **secpp;
2139
2140 /* Read this BFD's local symbols. */
2141 if (symtab_hdr->sh_info != 0)
2142 {
2143 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2144 if (isymbuf == NULL)
2145 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2146 symtab_hdr->sh_info, 0,
2147 NULL, NULL, NULL);
2148 if (isymbuf == NULL)
2149 goto error_return;
2150 }
2151
2152 internal_relocs = (_bfd_elf_link_read_relocs
2153 (input_bfd, input_section, NULL,
2154 (Elf_Internal_Rela *) NULL, FALSE));
2155 if (internal_relocs == NULL)
2156 goto error_return;
2157
2158 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2159 * sizeof (asection *));
2160 if (sections == NULL && symtab_hdr->sh_info > 0)
2161 goto error_return;
2162
2163 secpp = sections;
2164 isymend = isymbuf + symtab_hdr->sh_info;
2165 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2166 {
2167 asection *isec;
2168
2169 if (isymp->st_shndx == SHN_UNDEF)
2170 isec = bfd_und_section_ptr;
2171 else if (isymp->st_shndx == SHN_ABS)
2172 isec = bfd_abs_section_ptr;
2173 else if (isymp->st_shndx == SHN_COMMON)
2174 isec = bfd_com_section_ptr;
2175 else
2176 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2177
2178 *secpp = isec;
2179 }
2180
2181 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2182 input_section, data, internal_relocs,
2183 isymbuf, sections))
2184 goto error_return;
2185
2186 if (sections != NULL)
2187 free (sections);
2188 if (internal_relocs != elf_section_data (input_section)->relocs)
2189 free (internal_relocs);
2190 if (isymbuf != NULL
2191 && (unsigned char *) isymbuf != symtab_hdr->contents)
2192 free (isymbuf);
2193 }
2194
2195 return data;
2196
2197 error_return:
2198 if (sections != NULL)
2199 free (sections);
2200 if (internal_relocs != NULL
2201 && internal_relocs != elf_section_data (input_section)->relocs)
2202 free (internal_relocs);
2203 if (isymbuf != NULL
2204 && (unsigned char *) isymbuf != symtab_hdr->contents)
2205 free (isymbuf);
2206 return NULL;
2207 }
2208
2209 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2210
2211 static bfd_boolean
2212 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2213 Elf_Internal_Shdr *elf_section_hdr,
2214 asection *asect)
2215 {
2216 /* Code sections can only contain SH64 code, so mark them as such. */
2217 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2218 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2219
2220 return TRUE;
2221 }
2222
2223 static bfd_boolean
2224 sh_elf64_set_mach_from_flags (bfd *abfd)
2225 {
2226 flagword flags = elf_elfheader (abfd)->e_flags;
2227
2228 switch (flags & EF_SH_MACH_MASK)
2229 {
2230 case EF_SH5:
2231 /* Just one, but keep the switch construct to make additions easy. */
2232 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2233 break;
2234
2235 default:
2236 bfd_set_error (bfd_error_wrong_format);
2237 return FALSE;
2238 }
2239 return TRUE;
2240 }
2241
2242 /* Function to keep SH64 specific file flags.
2243
2244 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2245
2246 static bfd_boolean
2247 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2248 {
2249 BFD_ASSERT (! elf_flags_init (abfd)
2250 || elf_elfheader (abfd)->e_flags == flags);
2251
2252 elf_elfheader (abfd)->e_flags = flags;
2253 elf_flags_init (abfd) = TRUE;
2254 return sh_elf64_set_mach_from_flags (abfd);
2255 }
2256
2257 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2258 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2259
2260 static bfd_boolean
2261 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2262 {
2263 Elf_Internal_Shdr **o_shdrp;
2264 asection *isec;
2265 asection *osec;
2266
2267 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2268 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2269 return TRUE;
2270
2271 o_shdrp = elf_elfsections (obfd);
2272 for (osec = obfd->sections; osec; osec = osec->next)
2273 {
2274 int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx;
2275 for (isec = ibfd->sections; isec; isec = isec->next)
2276 {
2277 if (strcmp (osec->name, isec->name) == 0)
2278 {
2279 /* Note that we're not disallowing mixing data and code. */
2280 if ((elf_section_data (isec)->this_hdr.sh_flags
2281 & SHF_SH5_ISA32) != 0)
2282 o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32;
2283 break;
2284 }
2285 }
2286 }
2287
2288 /* Copy object attributes. */
2289 _bfd_elf_copy_obj_attributes (ibfd, obfd);
2290
2291 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2292 }
2293
2294 static bfd_boolean
2295 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2296 {
2297 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2298 }
2299
2300 static bfd_boolean
2301 sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd)
2302 {
2303 flagword old_flags, new_flags;
2304
2305 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
2306 return FALSE;
2307
2308 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2309 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2310 return TRUE;
2311
2312 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2313 {
2314 const char *msg;
2315
2316 if (bfd_get_arch_size (ibfd) == 32
2317 && bfd_get_arch_size (obfd) == 64)
2318 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
2319 else if (bfd_get_arch_size (ibfd) == 64
2320 && bfd_get_arch_size (obfd) == 32)
2321 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
2322 else
2323 msg = _("%s: object size does not match that of target %s");
2324
2325 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
2326 bfd_get_filename (obfd));
2327 bfd_set_error (bfd_error_wrong_format);
2328 return FALSE;
2329 }
2330
2331 old_flags = elf_elfheader (obfd)->e_flags;
2332 new_flags = elf_elfheader (ibfd)->e_flags;
2333 if (! elf_flags_init (obfd))
2334 {
2335 /* This happens when ld starts out with a 'blank' output file. */
2336 elf_flags_init (obfd) = TRUE;
2337 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2338 }
2339 /* We don't allow linking in anything else than SH64 code, and since
2340 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2341 here as things change. */
2342 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2343 {
2344 (*_bfd_error_handler)
2345 ("%s: does not use the SH64 64-bit ABI as previous modules do",
2346 bfd_get_filename (ibfd));
2347 bfd_set_error (bfd_error_bad_value);
2348 return FALSE;
2349 }
2350
2351 sh_elf64_copy_private_data_internal (ibfd, obfd);
2352
2353 /* I can't think of anything sane other than old_flags being EF_SH5 and
2354 that we need to preserve that. */
2355 elf_elfheader (obfd)->e_flags = old_flags;
2356
2357 return sh_elf64_set_mach_from_flags (obfd);
2358 }
2359
2360 /* Return the section that should be marked against GC for a given
2361 relocation. */
2362
2363 static asection *
2364 sh_elf64_gc_mark_hook (asection *sec,
2365 struct bfd_link_info *info,
2366 Elf_Internal_Rela *rel,
2367 struct elf_link_hash_entry *h,
2368 Elf_Internal_Sym *sym)
2369 {
2370 if (h != NULL)
2371 switch (ELF64_R_TYPE (rel->r_info))
2372 {
2373 case R_SH_GNU_VTINHERIT:
2374 case R_SH_GNU_VTENTRY:
2375 return NULL;
2376 }
2377
2378 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2379 }
2380
2381 /* Look through the relocs for a section during the first phase.
2382 Since we don't do .gots or .plts, we just need to consider the
2383 virtual table relocs for gc. */
2384
2385 static bfd_boolean
2386 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2387 asection *sec, const Elf_Internal_Rela *relocs)
2388 {
2389 Elf_Internal_Shdr *symtab_hdr;
2390 struct elf_link_hash_entry **sym_hashes;
2391 const Elf_Internal_Rela *rel;
2392 const Elf_Internal_Rela *rel_end;
2393 bfd *dynobj;
2394 bfd_vma *local_got_offsets;
2395 asection *sgot;
2396 asection *srelgot;
2397 asection *sreloc;
2398
2399 sgot = NULL;
2400 srelgot = NULL;
2401 sreloc = NULL;
2402
2403 if (info->relocatable)
2404 return TRUE;
2405
2406 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2407 sym_hashes = elf_sym_hashes (abfd);
2408
2409 dynobj = elf_hash_table (info)->dynobj;
2410 local_got_offsets = elf_local_got_offsets (abfd);
2411
2412 rel_end = relocs + sec->reloc_count;
2413 for (rel = relocs; rel < rel_end; rel++)
2414 {
2415 struct elf_link_hash_entry *h;
2416 unsigned long r_symndx;
2417
2418 r_symndx = ELF64_R_SYM (rel->r_info);
2419 if (r_symndx < symtab_hdr->sh_info)
2420 h = NULL;
2421 else
2422 {
2423 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2424 while (h->root.type == bfd_link_hash_indirect
2425 || h->root.type == bfd_link_hash_warning)
2426 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2427 }
2428
2429 /* Some relocs require a global offset table. */
2430 if (dynobj == NULL)
2431 {
2432 switch (ELF64_R_TYPE (rel->r_info))
2433 {
2434 case R_SH_GOTPLT_LOW16:
2435 case R_SH_GOTPLT_MEDLOW16:
2436 case R_SH_GOTPLT_MEDHI16:
2437 case R_SH_GOTPLT_HI16:
2438 case R_SH_GOTPLT10BY4:
2439 case R_SH_GOTPLT10BY8:
2440 case R_SH_GOT_LOW16:
2441 case R_SH_GOT_MEDLOW16:
2442 case R_SH_GOT_MEDHI16:
2443 case R_SH_GOT_HI16:
2444 case R_SH_GOT10BY4:
2445 case R_SH_GOT10BY8:
2446 case R_SH_GOTOFF_LOW16:
2447 case R_SH_GOTOFF_MEDLOW16:
2448 case R_SH_GOTOFF_MEDHI16:
2449 case R_SH_GOTOFF_HI16:
2450 case R_SH_GOTPC_LOW16:
2451 case R_SH_GOTPC_MEDLOW16:
2452 case R_SH_GOTPC_MEDHI16:
2453 case R_SH_GOTPC_HI16:
2454 elf_hash_table (info)->dynobj = dynobj = abfd;
2455 if (! _bfd_elf_create_got_section (dynobj, info))
2456 return FALSE;
2457 break;
2458
2459 default:
2460 break;
2461 }
2462 }
2463
2464 switch (ELF64_R_TYPE (rel->r_info))
2465 {
2466 /* This relocation describes the C++ object vtable hierarchy.
2467 Reconstruct it for later use during GC. */
2468 case R_SH_GNU_VTINHERIT:
2469 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2470 return FALSE;
2471 break;
2472
2473 /* This relocation describes which C++ vtable entries are actually
2474 used. Record for later use during GC. */
2475 case R_SH_GNU_VTENTRY:
2476 BFD_ASSERT (h != NULL);
2477 if (h != NULL
2478 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2479 return FALSE;
2480 break;
2481
2482 force_got:
2483 case R_SH_GOT_LOW16:
2484 case R_SH_GOT_MEDLOW16:
2485 case R_SH_GOT_MEDHI16:
2486 case R_SH_GOT_HI16:
2487 case R_SH_GOT10BY4:
2488 case R_SH_GOT10BY8:
2489 /* This symbol requires a global offset table entry. */
2490
2491 if (sgot == NULL)
2492 {
2493 sgot = bfd_get_linker_section (dynobj, ".got");
2494 BFD_ASSERT (sgot != NULL);
2495 }
2496
2497 if (srelgot == NULL
2498 && (h != NULL || info->shared))
2499 {
2500 srelgot = bfd_get_linker_section (dynobj, ".rela.got");
2501 if (srelgot == NULL)
2502 {
2503 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
2504 | SEC_IN_MEMORY | SEC_LINKER_CREATED
2505 | SEC_READONLY);
2506 srelgot = bfd_make_section_anyway_with_flags (dynobj,
2507 ".rela.got",
2508 flags);
2509 if (srelgot == NULL
2510 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
2511 return FALSE;
2512 }
2513 }
2514
2515 if (h != NULL)
2516 {
2517 if (h->type == STT_DATALABEL)
2518 {
2519 struct elf_sh64_link_hash_entry *hsh;
2520
2521 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2522 hsh = (struct elf_sh64_link_hash_entry *)h;
2523 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2524 break;
2525
2526 hsh->datalabel_got_offset = sgot->size;
2527 }
2528 else
2529 {
2530 if (h->got.offset != (bfd_vma) -1)
2531 {
2532 /* We have already allocated space in the .got. */
2533 break;
2534 }
2535 h->got.offset = sgot->size;
2536 }
2537
2538 /* Make sure this symbol is output as a dynamic symbol. */
2539 if (h->dynindx == -1)
2540 {
2541 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2542 return FALSE;
2543 }
2544
2545 srelgot->size += sizeof (Elf64_External_Rela);
2546 }
2547 else
2548 {
2549 /* This is a global offset table entry for a local
2550 symbol. */
2551 if (local_got_offsets == NULL)
2552 {
2553 size_t size;
2554 register unsigned int i;
2555
2556 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2557 /* Reserve space for both the datalabel and
2558 codelabel local GOT offsets. */
2559 size *= 2;
2560 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2561 if (local_got_offsets == NULL)
2562 return FALSE;
2563 elf_local_got_offsets (abfd) = local_got_offsets;
2564 for (i = 0; i < symtab_hdr->sh_info; i++)
2565 local_got_offsets[i] = (bfd_vma) -1;
2566 for (; i < 2 * symtab_hdr->sh_info; i++)
2567 local_got_offsets[i] = (bfd_vma) -1;
2568 }
2569 if ((rel->r_addend & 1) != 0)
2570 {
2571 if (local_got_offsets[symtab_hdr->sh_info
2572 + r_symndx] != (bfd_vma) -1)
2573 {
2574 /* We have already allocated space in the .got. */
2575 break;
2576 }
2577 local_got_offsets[symtab_hdr->sh_info
2578 + r_symndx] = sgot->size;
2579 }
2580 else
2581 {
2582 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2583 {
2584 /* We have already allocated space in the .got. */
2585 break;
2586 }
2587 local_got_offsets[r_symndx] = sgot->size;
2588 }
2589
2590 if (info->shared)
2591 {
2592 /* If we are generating a shared object, we need to
2593 output a R_SH_RELATIVE reloc so that the dynamic
2594 linker can adjust this GOT entry. */
2595 srelgot->size += sizeof (Elf64_External_Rela);
2596 }
2597 }
2598
2599 sgot->size += 8;
2600
2601 break;
2602
2603 case R_SH_GOTPLT_LOW16:
2604 case R_SH_GOTPLT_MEDLOW16:
2605 case R_SH_GOTPLT_MEDHI16:
2606 case R_SH_GOTPLT_HI16:
2607 case R_SH_GOTPLT10BY4:
2608 case R_SH_GOTPLT10BY8:
2609 /* If this is a local symbol, we resolve it directly without
2610 creating a procedure linkage table entry. */
2611
2612 if (h == NULL
2613 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2614 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2615 || ! info->shared
2616 || info->symbolic
2617 || h->dynindx == -1
2618 || h->got.offset != (bfd_vma) -1)
2619 goto force_got;
2620
2621 /* Make sure this symbol is output as a dynamic symbol. */
2622 if (h->dynindx == -1)
2623 {
2624 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2625 return FALSE;
2626 }
2627
2628 h->needs_plt = 1;
2629
2630 break;
2631
2632 case R_SH_PLT_LOW16:
2633 case R_SH_PLT_MEDLOW16:
2634 case R_SH_PLT_MEDHI16:
2635 case R_SH_PLT_HI16:
2636 /* This symbol requires a procedure linkage table entry. We
2637 actually build the entry in adjust_dynamic_symbol,
2638 because this might be a case of linking PIC code which is
2639 never referenced by a dynamic object, in which case we
2640 don't need to generate a procedure linkage table entry
2641 after all. */
2642
2643 /* If this is a local symbol, we resolve it directly without
2644 creating a procedure linkage table entry. */
2645 if (h == NULL)
2646 continue;
2647
2648 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2649 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2650 break;
2651
2652 h->needs_plt = 1;
2653
2654 break;
2655
2656 case R_SH_64:
2657 case R_SH_64_PCREL:
2658 if (h != NULL)
2659 h->non_got_ref = 1;
2660
2661 /* If we are creating a shared library, and this is a reloc
2662 against a global symbol, or a non PC relative reloc
2663 against a local symbol, then we need to copy the reloc
2664 into the shared library. However, if we are linking with
2665 -Bsymbolic, we do not need to copy a reloc against a
2666 global symbol which is defined in an object we are
2667 including in the link (i.e., DEF_REGULAR is set). At
2668 this point we have not seen all the input files, so it is
2669 possible that DEF_REGULAR is not set now but will be set
2670 later (it is never cleared). We account for that
2671 possibility below by storing information in the
2672 pcrel_relocs_copied field of the hash table entry. */
2673 if (info->shared
2674 && (sec->flags & SEC_ALLOC) != 0
2675 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2676 || (h != NULL
2677 && (! info->symbolic
2678 || !h->def_regular))))
2679 {
2680 /* When creating a shared object, we must copy these
2681 reloc types into the output file. We create a reloc
2682 section in dynobj and make room for this reloc. */
2683 if (sreloc == NULL)
2684 {
2685 sreloc = _bfd_elf_make_dynamic_reloc_section
2686 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
2687
2688 if (sreloc == NULL)
2689 return FALSE;
2690 }
2691
2692 sreloc->size += sizeof (Elf64_External_Rela);
2693
2694 /* If we are linking with -Bsymbolic, and this is a
2695 global symbol, we count the number of PC relative
2696 relocations we have entered for this symbol, so that
2697 we can discard them again if the symbol is later
2698 defined by a regular object. Note that this function
2699 is only called if we are using an elf_sh linker
2700 hash table, which means that h is really a pointer to
2701 an elf_sh_link_hash_entry. */
2702 if (h != NULL && info->symbolic
2703 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2704 {
2705 struct elf_sh64_link_hash_entry *eh;
2706 struct elf_sh64_pcrel_relocs_copied *p;
2707
2708 eh = (struct elf_sh64_link_hash_entry *) h;
2709
2710 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2711 if (p->section == sreloc)
2712 break;
2713
2714 if (p == NULL)
2715 {
2716 p = ((struct elf_sh64_pcrel_relocs_copied *)
2717 bfd_alloc (dynobj, sizeof *p));
2718 if (p == NULL)
2719 return FALSE;
2720 p->next = eh->pcrel_relocs_copied;
2721 eh->pcrel_relocs_copied = p;
2722 p->section = sreloc;
2723 p->count = 0;
2724 }
2725
2726 ++p->count;
2727 }
2728 }
2729
2730 break;
2731 }
2732 }
2733
2734 return TRUE;
2735 }
2736
2737 static int
2738 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2739 {
2740 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2741 return STT_DATALABEL;
2742
2743 return type;
2744 }
2745
2746 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2747 Either file can presumably exist without the other, but do not differ
2748 in elf-size-ness. How to share?
2749
2750 Hook called by the linker routine which adds symbols from an object
2751 file. We must make indirect symbols for undefined symbols marked with
2752 STT_DATALABEL, so relocations passing them will pick up that attribute
2753 and neutralize STO_SH5_ISA32 found on the symbol definition.
2754
2755 There is a problem, though: We want to fill in the hash-table entry for
2756 this symbol and signal to the caller that no further processing is
2757 needed. But we don't have the index for this hash-table entry. We
2758 rely here on that the current entry is the first hash-entry with NULL,
2759 which seems brittle. Also, iterating over the hash-table to find that
2760 entry is a linear operation on the number of symbols in this input
2761 file, and this function should take constant time, so that's not good
2762 too. Only comfort is that DataLabel references should only be found in
2763 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2764 into adding an option to elf_add_symbol_hook (preferably) for the index
2765 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2766 (not so good). */
2767
2768 static bfd_boolean
2769 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2770 Elf_Internal_Sym *sym, const char **namep,
2771 flagword *flagsp ATTRIBUTE_UNUSED,
2772 asection **secp, bfd_vma *valp)
2773 {
2774 /* We want to do this for relocatable as well as final linking. */
2775 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2776 && is_elf_hash_table (info->hash))
2777 {
2778 struct elf_link_hash_entry *h;
2779
2780 /* For relocatable links, we register the DataLabel sym in its own
2781 right, and tweak the name when it's output. Otherwise, we make
2782 an indirect symbol of it. */
2783 flagword flags
2784 = info->relocatable || info->emitrelocations
2785 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2786
2787 char *dl_name
2788 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2789 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2790
2791 BFD_ASSERT (sym_hash != NULL);
2792
2793 /* Allocation may fail. */
2794 if (dl_name == NULL)
2795 return FALSE;
2796
2797 strcpy (dl_name, *namep);
2798 strcat (dl_name, DATALABEL_SUFFIX);
2799
2800 h = (struct elf_link_hash_entry *)
2801 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2802
2803 if (h == NULL)
2804 {
2805 /* No previous datalabel symbol. Make one. */
2806 struct bfd_link_hash_entry *bh = NULL;
2807 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2808
2809 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2810 flags, *secp, *valp,
2811 *namep, FALSE,
2812 bed->collect, &bh))
2813 {
2814 free (dl_name);
2815 return FALSE;
2816 }
2817
2818 h = (struct elf_link_hash_entry *) bh;
2819 h->non_elf = 0;
2820 h->type = STT_DATALABEL;
2821 }
2822 else
2823 /* If a new symbol was created, it holds the allocated name.
2824 Otherwise, we don't need it anymore and should deallocate it. */
2825 free (dl_name);
2826
2827 if (h->type != STT_DATALABEL
2828 || ((info->relocatable || info->emitrelocations)
2829 && h->root.type != bfd_link_hash_undefined)
2830 || (! info->relocatable && !info->emitrelocations
2831 && h->root.type != bfd_link_hash_indirect))
2832 {
2833 /* Make sure we don't get confused on invalid input. */
2834 (*_bfd_error_handler)
2835 (_("%s: encountered datalabel symbol in input"),
2836 bfd_get_filename (abfd));
2837 bfd_set_error (bfd_error_bad_value);
2838 return FALSE;
2839 }
2840
2841 /* Now find the hash-table slot for this entry and fill it in. */
2842 while (*sym_hash != NULL)
2843 sym_hash++;
2844 *sym_hash = h;
2845
2846 /* Signal to caller to skip this symbol - we've handled it. */
2847 *namep = NULL;
2848 }
2849
2850 return TRUE;
2851 }
2852
2853 /* This hook function is called before the linker writes out a global
2854 symbol. For relocatable links, DataLabel symbols will be present in
2855 linker output. We cut off the special suffix on those symbols, so the
2856 right name appears in the output.
2857
2858 When linking and emitting relocations, there can appear global symbols
2859 that are not referenced by relocs, but rather only implicitly through
2860 DataLabel references, a relation that is not visible to the linker.
2861 Since no stripping of global symbols in done when doing such linking,
2862 we don't need to look up and make sure to emit the main symbol for each
2863 DataLabel symbol. */
2864
2865 static int
2866 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2867 const char *cname,
2868 Elf_Internal_Sym *sym,
2869 asection *input_sec ATTRIBUTE_UNUSED,
2870 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2871 {
2872 char *name = (char *) cname;
2873
2874 if (info->relocatable || info->emitrelocations)
2875 {
2876 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2877 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2878 }
2879
2880 return 1;
2881 }
2882
2883 /* Set bit 0 on the entry address; it always points to SHmedia code. This
2884 is mostly for symmetry with the 32-bit format, where code can be
2885 SHcompact and we need to make a distinction to make sure execution
2886 starts in the right ISA mode. It is also convenient for a loader,
2887 which would otherwise have to set this bit when loading a TR register
2888 before jumping to the program entry. */
2889
2890 static void
2891 sh64_elf64_final_write_processing (bfd *abfd,
2892 bfd_boolean linker ATTRIBUTE_UNUSED)
2893 {
2894 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
2895 numerically, but we currently lack the infrastructure to recognize
2896 that: The entry symbol, and info whether it is numeric or a symbol
2897 name is kept private in the linker. */
2898 if (elf_elfheader (abfd)->e_type == ET_EXEC)
2899 elf_elfheader (abfd)->e_entry |= 1;
2900 }
2901
2902 /* First entry in an absolute procedure linkage table look like this. */
2903
2904 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
2905 {
2906 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
2907 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
2908 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
2909 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2910 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2911 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2912 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2913 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2914 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2915 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2916 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2917 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2918 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2919 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2920 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2921 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2922 };
2923
2924 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
2925 {
2926 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
2927 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
2928 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
2929 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2930 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2931 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2932 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2933 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2934 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2935 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2936 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2937 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2938 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2939 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2940 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2941 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2942 };
2943
2944 /* Sebsequent entries in an absolute procedure linkage table look like
2945 this. */
2946
2947 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
2948 {
2949 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
2950 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
2951 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
2952 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
2953 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
2954 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2955 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2956 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2957 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
2958 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
2959 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
2960 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
2961 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
2962 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2963 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2964 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2965 };
2966
2967 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
2968 {
2969 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
2970 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2971 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2972 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
2973 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
2974 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2975 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2976 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2977 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
2978 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
2979 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
2980 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
2981 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
2982 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2983 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2984 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2985 };
2986
2987 /* Entries in a PIC procedure linkage table look like this. */
2988
2989 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
2990 {
2991 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
2992 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
2993 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
2994 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2995 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2996 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2997 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2998 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2999 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3000 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
3001 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3002 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3003 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3004 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3005 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3006 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3007 };
3008
3009 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3010 {
3011 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3012 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3013 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
3014 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3015 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3016 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3017 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3018 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3019 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3020 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
3021 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3022 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3023 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3024 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3025 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3026 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3027 };
3028
3029 static const bfd_byte *elf_sh64_plt0_entry;
3030 static const bfd_byte *elf_sh64_plt_entry;
3031 static const bfd_byte *elf_sh64_pic_plt_entry;
3032
3033 /* Create an entry in an sh ELF linker hash table. */
3034
3035 static struct bfd_hash_entry *
3036 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
3037 struct bfd_hash_table *table,
3038 const char *string)
3039 {
3040 struct elf_sh64_link_hash_entry *ret =
3041 (struct elf_sh64_link_hash_entry *) entry;
3042
3043 /* Allocate the structure if it has not already been allocated by a
3044 subclass. */
3045 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3046 ret = ((struct elf_sh64_link_hash_entry *)
3047 bfd_hash_allocate (table,
3048 sizeof (struct elf_sh64_link_hash_entry)));
3049 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3050 return (struct bfd_hash_entry *) ret;
3051
3052 /* Call the allocation method of the superclass. */
3053 ret = ((struct elf_sh64_link_hash_entry *)
3054 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3055 table, string));
3056 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3057 {
3058 ret->pcrel_relocs_copied = NULL;
3059 ret->datalabel_got_offset = (bfd_vma) -1;
3060 }
3061
3062 return (struct bfd_hash_entry *) ret;
3063 }
3064
3065 /* Create an sh64 ELF linker hash table. */
3066
3067 static struct bfd_link_hash_table *
3068 sh64_elf64_link_hash_table_create (bfd *abfd)
3069 {
3070 struct elf_link_hash_table *ret;
3071
3072 ret = (struct elf_link_hash_table *) bfd_malloc (sizeof (* ret));
3073 if (ret == (struct elf_link_hash_table *) NULL)
3074 return NULL;
3075
3076 if (!_bfd_elf_link_hash_table_init (ret, abfd,
3077 sh64_elf64_link_hash_newfunc,
3078 sizeof (struct elf_sh64_link_hash_entry),
3079 GENERIC_ELF_DATA))
3080 {
3081 free (ret);
3082 return NULL;
3083 }
3084
3085 return &ret->root;
3086 }
3087
3088 inline static void
3089 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
3090 {
3091 bfd_put_32 (output_bfd,
3092 bfd_get_32 (output_bfd, addr)
3093 | ((value >> 6) & 0x3fffc00),
3094 addr);
3095 bfd_put_32 (output_bfd,
3096 bfd_get_32 (output_bfd, addr + 4)
3097 | ((value << 10) & 0x3fffc00),
3098 addr + 4);
3099 }
3100
3101 inline static void
3102 movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr)
3103 {
3104 bfd_put_32 (output_bfd,
3105 bfd_get_32 (output_bfd, addr)
3106 | ((value >> 38) & 0x3fffc00),
3107 addr);
3108 bfd_put_32 (output_bfd,
3109 bfd_get_32 (output_bfd, addr + 4)
3110 | ((value >> 22) & 0x3fffc00),
3111 addr + 4);
3112 bfd_put_32 (output_bfd,
3113 bfd_get_32 (output_bfd, addr + 8)
3114 | ((value >> 6) & 0x3fffc00),
3115 addr + 8);
3116 bfd_put_32 (output_bfd,
3117 bfd_get_32 (output_bfd, addr + 12)
3118 | ((value << 10) & 0x3fffc00),
3119 addr + 12);
3120 }
3121
3122 /* Create dynamic sections when linking against a dynamic object. */
3123
3124 static bfd_boolean
3125 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3126 {
3127 flagword flags, pltflags;
3128 register asection *s;
3129 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3130 int ptralign = 0;
3131
3132 switch (bed->s->arch_size)
3133 {
3134 case 32:
3135 ptralign = 2;
3136 break;
3137
3138 case 64:
3139 ptralign = 3;
3140 break;
3141
3142 default:
3143 bfd_set_error (bfd_error_bad_value);
3144 return FALSE;
3145 }
3146
3147 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3148 .rel[a].bss sections. */
3149
3150 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3151 | SEC_LINKER_CREATED);
3152
3153 pltflags = flags;
3154 pltflags |= SEC_CODE;
3155 if (bed->plt_not_loaded)
3156 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3157 if (bed->plt_readonly)
3158 pltflags |= SEC_READONLY;
3159
3160 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
3161 if (s == NULL
3162 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3163 return FALSE;
3164
3165 if (bed->want_plt_sym)
3166 {
3167 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3168 .plt section. */
3169 struct elf_link_hash_entry *h;
3170 struct bfd_link_hash_entry *bh = NULL;
3171
3172 if (! (_bfd_generic_link_add_one_symbol
3173 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3174 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3175 return FALSE;
3176
3177 h = (struct elf_link_hash_entry *) bh;
3178 h->def_regular = 1;
3179 h->type = STT_OBJECT;
3180 elf_hash_table (info)->hplt = h;
3181
3182 if (info->shared
3183 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3184 return FALSE;
3185 }
3186
3187 s = bfd_make_section_anyway_with_flags (abfd,
3188 bed->default_use_rela_p
3189 ? ".rela.plt" : ".rel.plt",
3190 flags | SEC_READONLY);
3191 if (s == NULL
3192 || ! bfd_set_section_alignment (abfd, s, ptralign))
3193 return FALSE;
3194
3195 if (! _bfd_elf_create_got_section (abfd, info))
3196 return FALSE;
3197
3198 if (bed->want_dynbss)
3199 {
3200 /* The .dynbss section is a place to put symbols which are defined
3201 by dynamic objects, are referenced by regular objects, and are
3202 not functions. We must allocate space for them in the process
3203 image and use a R_*_COPY reloc to tell the dynamic linker to
3204 initialize them at run time. The linker script puts the .dynbss
3205 section into the .bss section of the final image. */
3206 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3207 SEC_ALLOC | SEC_LINKER_CREATED);
3208 if (s == NULL)
3209 return FALSE;
3210
3211 /* The .rel[a].bss section holds copy relocs. This section is not
3212 normally needed. We need to create it here, though, so that the
3213 linker will map it to an output section. We can't just create it
3214 only if we need it, because we will not know whether we need it
3215 until we have seen all the input files, and the first time the
3216 main linker code calls BFD after examining all the input files
3217 (size_dynamic_sections) the input sections have already been
3218 mapped to the output sections. If the section turns out not to
3219 be needed, we can discard it later. We will never need this
3220 section when generating a shared object, since they do not use
3221 copy relocs. */
3222 if (! info->shared)
3223 {
3224 s = bfd_make_section_anyway_with_flags (abfd,
3225 (bed->default_use_rela_p
3226 ? ".rela.bss" : ".rel.bss"),
3227 flags | SEC_READONLY);
3228 if (s == NULL
3229 || ! bfd_set_section_alignment (abfd, s, ptralign))
3230 return FALSE;
3231 }
3232 }
3233
3234 return TRUE;
3235 }
3236 \f
3237 /* Adjust a symbol defined by a dynamic object and referenced by a
3238 regular object. The current definition is in some section of the
3239 dynamic object, but we're not including those sections. We have to
3240 change the definition to something the rest of the link can
3241 understand. */
3242
3243 static bfd_boolean
3244 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3245 struct elf_link_hash_entry *h)
3246 {
3247 bfd *dynobj;
3248 asection *s;
3249
3250 dynobj = elf_hash_table (info)->dynobj;
3251
3252 /* Make sure we know what is going on here. */
3253 BFD_ASSERT (dynobj != NULL
3254 && (h->needs_plt
3255 || h->u.weakdef != NULL
3256 || (h->def_dynamic
3257 && h->ref_regular
3258 && !h->def_regular)));
3259
3260 /* If this is a function, put it in the procedure linkage table. We
3261 will fill in the contents of the procedure linkage table later,
3262 when we know the address of the .got section. */
3263 if (h->type == STT_FUNC
3264 || h->needs_plt)
3265 {
3266 if (! info->shared
3267 && !h->def_dynamic
3268 && !h->ref_dynamic)
3269 {
3270 /* This case can occur if we saw a PLT reloc in an input
3271 file, but the symbol was never referred to by a dynamic
3272 object. In such a case, we don't actually need to build
3273 a procedure linkage table, and we can just do a REL64
3274 reloc instead. */
3275 BFD_ASSERT (h->needs_plt);
3276 return TRUE;
3277 }
3278
3279 /* Make sure this symbol is output as a dynamic symbol. */
3280 if (h->dynindx == -1)
3281 {
3282 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3283 return FALSE;
3284 }
3285
3286 s = bfd_get_linker_section (dynobj, ".plt");
3287 BFD_ASSERT (s != NULL);
3288
3289 /* If this is the first .plt entry, make room for the special
3290 first entry. */
3291 if (s->size == 0)
3292 s->size += PLT_ENTRY_SIZE;
3293
3294 /* If this symbol is not defined in a regular file, and we are
3295 not generating a shared library, then set the symbol to this
3296 location in the .plt. This is required to make function
3297 pointers compare as equal between the normal executable and
3298 the shared library. */
3299 if (! info->shared
3300 && !h->def_regular)
3301 {
3302 h->root.u.def.section = s;
3303 h->root.u.def.value = s->size;
3304 }
3305
3306 h->plt.offset = s->size;
3307
3308 /* Make room for this entry. */
3309 s->size += elf_sh64_sizeof_plt (info);
3310
3311 /* We also need to make an entry in the .got.plt section, which
3312 will be placed in the .got section by the linker script. */
3313
3314 s = bfd_get_linker_section (dynobj, ".got.plt");
3315 BFD_ASSERT (s != NULL);
3316 s->size += 8;
3317
3318 /* We also need to make an entry in the .rela.plt section. */
3319
3320 s = bfd_get_linker_section (dynobj, ".rela.plt");
3321 BFD_ASSERT (s != NULL);
3322 s->size += sizeof (Elf64_External_Rela);
3323
3324 return TRUE;
3325 }
3326
3327 /* If this is a weak symbol, and there is a real definition, the
3328 processor independent code will have arranged for us to see the
3329 real definition first, and we can just use the same value. */
3330 if (h->u.weakdef != NULL)
3331 {
3332 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3333 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3334 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3335 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3336 return TRUE;
3337 }
3338
3339 /* This is a reference to a symbol defined by a dynamic object which
3340 is not a function. */
3341
3342 /* If we are creating a shared library, we must presume that the
3343 only references to the symbol are via the global offset table.
3344 For such cases we need not do anything here; the relocations will
3345 be handled correctly by relocate_section. */
3346 if (info->shared)
3347 return TRUE;
3348
3349 /* If there are no references to this symbol that do not use the
3350 GOT, we don't need to generate a copy reloc. */
3351 if (!h->non_got_ref)
3352 return TRUE;
3353
3354 /* We must allocate the symbol in our .dynbss section, which will
3355 become part of the .bss section of the executable. There will be
3356 an entry for this symbol in the .dynsym section. The dynamic
3357 object will contain position independent code, so all references
3358 from the dynamic object to this symbol will go through the global
3359 offset table. The dynamic linker will use the .dynsym entry to
3360 determine the address it must put in the global offset table, so
3361 both the dynamic object and the regular object will refer to the
3362 same memory location for the variable. */
3363
3364 s = bfd_get_linker_section (dynobj, ".dynbss");
3365 BFD_ASSERT (s != NULL);
3366
3367 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3368 copy the initial value out of the dynamic object and into the
3369 runtime process image. We need to remember the offset into the
3370 .rela.bss section we are going to use. */
3371 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
3372 {
3373 asection *srel;
3374
3375 srel = bfd_get_linker_section (dynobj, ".rela.bss");
3376 BFD_ASSERT (srel != NULL);
3377 srel->size += sizeof (Elf64_External_Rela);
3378 h->needs_copy = 1;
3379 }
3380
3381 return _bfd_elf_adjust_dynamic_copy (h, s);
3382 }
3383
3384 /* This function is called via sh_elf_link_hash_traverse if we are
3385 creating a shared object with -Bsymbolic. It discards the space
3386 allocated to copy PC relative relocs against symbols which are
3387 defined in regular objects. We allocated space for them in the
3388 check_relocs routine, but we won't fill them in in the
3389 relocate_section routine. */
3390
3391 static bfd_boolean
3392 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3393 void *ignore ATTRIBUTE_UNUSED)
3394 {
3395 struct elf_sh64_pcrel_relocs_copied *s;
3396
3397 /* We only discard relocs for symbols defined in a regular object. */
3398 if (!h->root.def_regular)
3399 return TRUE;
3400
3401 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3402 s->section->size -= s->count * sizeof (Elf64_External_Rela);
3403
3404 return TRUE;
3405 }
3406
3407 /* Set the sizes of the dynamic sections. */
3408
3409 static bfd_boolean
3410 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3411 struct bfd_link_info *info)
3412 {
3413 bfd *dynobj;
3414 asection *s;
3415 bfd_boolean plt;
3416 bfd_boolean relocs;
3417 bfd_boolean reltext;
3418
3419 dynobj = elf_hash_table (info)->dynobj;
3420 BFD_ASSERT (dynobj != NULL);
3421
3422 if (elf_hash_table (info)->dynamic_sections_created)
3423 {
3424 /* Set the contents of the .interp section to the interpreter. */
3425 if (info->executable)
3426 {
3427 s = bfd_get_linker_section (dynobj, ".interp");
3428 BFD_ASSERT (s != NULL);
3429 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3430 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3431 }
3432 }
3433 else
3434 {
3435 /* We may have created entries in the .rela.got section.
3436 However, if we are not creating the dynamic sections, we will
3437 not actually use these entries. Reset the size of .rela.got,
3438 which will cause it to get stripped from the output file
3439 below. */
3440 s = bfd_get_linker_section (dynobj, ".rela.got");
3441 if (s != NULL)
3442 s->size = 0;
3443 }
3444
3445 /* If this is a -Bsymbolic shared link, then we need to discard all
3446 PC relative relocs against symbols defined in a regular object.
3447 We allocated space for them in the check_relocs routine, but we
3448 will not fill them in in the relocate_section routine. */
3449 if (info->shared && info->symbolic)
3450 sh64_elf64_link_hash_traverse (elf_hash_table (info),
3451 sh64_elf64_discard_copies, NULL);
3452
3453 /* The check_relocs and adjust_dynamic_symbol entry points have
3454 determined the sizes of the various dynamic sections. Allocate
3455 memory for them. */
3456 plt = FALSE;
3457 relocs = FALSE;
3458 reltext = FALSE;
3459 for (s = dynobj->sections; s != NULL; s = s->next)
3460 {
3461 const char *name;
3462
3463 if ((s->flags & SEC_LINKER_CREATED) == 0)
3464 continue;
3465
3466 /* It's OK to base decisions on the section name, because none
3467 of the dynobj section names depend upon the input files. */
3468 name = bfd_get_section_name (dynobj, s);
3469
3470 if (strcmp (name, ".plt") == 0)
3471 {
3472 /* Remember whether there is a PLT. */
3473 plt = s->size != 0;
3474 }
3475 else if (CONST_STRNEQ (name, ".rela"))
3476 {
3477 if (s->size != 0)
3478 {
3479 asection *target;
3480
3481 /* Remember whether there are any reloc sections other
3482 than .rela.plt. */
3483 if (strcmp (name, ".rela.plt") != 0)
3484 {
3485 const char *outname;
3486
3487 relocs = TRUE;
3488
3489 /* If this relocation section applies to a read only
3490 section, then we probably need a DT_TEXTREL
3491 entry. The entries in the .rela.plt section
3492 really apply to the .got section, which we
3493 created ourselves and so know is not readonly. */
3494 outname = bfd_get_section_name (output_bfd,
3495 s->output_section);
3496 target = bfd_get_section_by_name (output_bfd, outname + 5);
3497 if (target != NULL
3498 && (target->flags & SEC_READONLY) != 0
3499 && (target->flags & SEC_ALLOC) != 0)
3500 reltext = TRUE;
3501 }
3502
3503 /* We use the reloc_count field as a counter if we need
3504 to copy relocs into the output file. */
3505 s->reloc_count = 0;
3506 }
3507 }
3508 else if (! CONST_STRNEQ (name, ".got")
3509 && strcmp (name, ".dynbss") != 0)
3510 {
3511 /* It's not one of our sections, so don't allocate space. */
3512 continue;
3513 }
3514
3515 if (s->size == 0)
3516 {
3517 /* If we don't need this section, strip it from the
3518 output file. This is mostly to handle .rela.bss and
3519 .rela.plt. We must create both sections in
3520 create_dynamic_sections, because they must be created
3521 before the linker maps input sections to output
3522 sections. The linker does that before
3523 adjust_dynamic_symbol is called, and it is that
3524 function which decides whether anything needs to go
3525 into these sections. */
3526 s->flags |= SEC_EXCLUDE;
3527 continue;
3528 }
3529
3530 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3531 continue;
3532
3533 /* Allocate memory for the section contents. */
3534 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3535 if (s->contents == NULL)
3536 return FALSE;
3537 }
3538
3539 if (elf_hash_table (info)->dynamic_sections_created)
3540 {
3541 /* Add some entries to the .dynamic section. We fill in the
3542 values later, in sh64_elf64_finish_dynamic_sections, but we
3543 must add the entries now so that we get the correct size for
3544 the .dynamic section. The DT_DEBUG entry is filled in by the
3545 dynamic linker and used by the debugger. */
3546 if (info->executable)
3547 {
3548 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3549 return FALSE;
3550 }
3551
3552 if (plt)
3553 {
3554 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3555 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3556 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3557 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3558 return FALSE;
3559 }
3560
3561 if (relocs)
3562 {
3563 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3564 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3565 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3566 sizeof (Elf64_External_Rela)))
3567 return FALSE;
3568 }
3569
3570 if (reltext)
3571 {
3572 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3573 return FALSE;
3574 }
3575 }
3576
3577 return TRUE;
3578 }
3579
3580 /* Finish up dynamic symbol handling. We set the contents of various
3581 dynamic sections here. */
3582
3583 static bfd_boolean
3584 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3585 struct bfd_link_info *info,
3586 struct elf_link_hash_entry *h,
3587 Elf_Internal_Sym *sym)
3588 {
3589 bfd *dynobj;
3590
3591 dynobj = elf_hash_table (info)->dynobj;
3592
3593 if (h->plt.offset != (bfd_vma) -1)
3594 {
3595 asection *splt;
3596 asection *sgot;
3597 asection *srel;
3598
3599 bfd_vma plt_index;
3600 bfd_vma got_offset;
3601 Elf_Internal_Rela rel;
3602 bfd_byte *loc;
3603
3604 /* This symbol has an entry in the procedure linkage table. Set
3605 it up. */
3606
3607 BFD_ASSERT (h->dynindx != -1);
3608
3609 splt = bfd_get_linker_section (dynobj, ".plt");
3610 sgot = bfd_get_linker_section (dynobj, ".got.plt");
3611 srel = bfd_get_linker_section (dynobj, ".rela.plt");
3612 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3613
3614 /* Get the index in the procedure linkage table which
3615 corresponds to this symbol. This is the index of this symbol
3616 in all the symbols for which we are making plt entries. The
3617 first entry in the procedure linkage table is reserved. */
3618 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3619
3620 /* Get the offset into the .got table of the entry that
3621 corresponds to this function. Each .got entry is 8 bytes.
3622 The first three are reserved. */
3623 got_offset = (plt_index + 3) * 8;
3624
3625 if (info->shared)
3626 got_offset -= GOT_BIAS;
3627
3628 /* Fill in the entry in the procedure linkage table. */
3629 if (! info->shared)
3630 {
3631 if (elf_sh64_plt_entry == NULL)
3632 {
3633 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3634 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3635 }
3636 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3637 elf_sh64_sizeof_plt (info));
3638 movi_3shori_putval (output_bfd,
3639 (sgot->output_section->vma
3640 + sgot->output_offset
3641 + got_offset),
3642 (splt->contents + h->plt.offset
3643 + elf_sh64_plt_symbol_offset (info)));
3644
3645 /* Set bottom bit because its for a branch to SHmedia */
3646 movi_shori_putval (output_bfd,
3647 -(h->plt.offset
3648 + elf_sh64_plt_plt0_offset (info) + 8)
3649 | 1,
3650 (splt->contents + h->plt.offset
3651 + elf_sh64_plt_plt0_offset (info)));
3652 }
3653 else
3654 {
3655 if (elf_sh64_pic_plt_entry == NULL)
3656 {
3657 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3658 elf_sh64_pic_plt_entry_be :
3659 elf_sh64_pic_plt_entry_le);
3660 }
3661 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3662 elf_sh64_sizeof_plt (info));
3663 movi_shori_putval (output_bfd, got_offset,
3664 (splt->contents + h->plt.offset
3665 + elf_sh64_plt_symbol_offset (info)));
3666 }
3667
3668 if (info->shared)
3669 got_offset += GOT_BIAS;
3670
3671 movi_shori_putval (output_bfd,
3672 plt_index * sizeof (Elf64_External_Rela),
3673 (splt->contents + h->plt.offset
3674 + elf_sh64_plt_reloc_offset (info)));
3675
3676 /* Fill in the entry in the global offset table. */
3677 bfd_put_64 (output_bfd,
3678 (splt->output_section->vma
3679 + splt->output_offset
3680 + h->plt.offset
3681 + elf_sh64_plt_temp_offset (info)),
3682 sgot->contents + got_offset);
3683
3684 /* Fill in the entry in the .rela.plt section. */
3685 rel.r_offset = (sgot->output_section->vma
3686 + sgot->output_offset
3687 + got_offset);
3688 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3689 rel.r_addend = 0;
3690 rel.r_addend = GOT_BIAS;
3691 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3692 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3693
3694 if (!h->def_regular)
3695 {
3696 /* Mark the symbol as undefined, rather than as defined in
3697 the .plt section. Leave the value alone. */
3698 sym->st_shndx = SHN_UNDEF;
3699 }
3700 }
3701
3702 if (h->got.offset != (bfd_vma) -1)
3703 {
3704 asection *sgot;
3705 asection *srel;
3706 Elf_Internal_Rela rel;
3707 bfd_byte *loc;
3708
3709 /* This symbol has an entry in the global offset table. Set it
3710 up. */
3711
3712 sgot = bfd_get_linker_section (dynobj, ".got");
3713 srel = bfd_get_linker_section (dynobj, ".rela.got");
3714 BFD_ASSERT (sgot != NULL && srel != NULL);
3715
3716 rel.r_offset = (sgot->output_section->vma
3717 + sgot->output_offset
3718 + (h->got.offset &~ 1));
3719
3720 /* If this is a -Bsymbolic link, and the symbol is defined
3721 locally, we just want to emit a RELATIVE reloc. Likewise if
3722 the symbol was forced to be local because of a version file.
3723 The entry in the global offset table will already have been
3724 initialized in the relocate_section function. */
3725 if (info->shared
3726 && (info->symbolic || h->dynindx == -1)
3727 && h->def_regular)
3728 {
3729 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3730 rel.r_addend = (h->root.u.def.value
3731 + h->root.u.def.section->output_section->vma
3732 + h->root.u.def.section->output_offset);
3733 }
3734 else
3735 {
3736 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3737 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3738 rel.r_addend = 0;
3739 }
3740
3741 loc = srel->contents;
3742 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3743 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3744 }
3745
3746 if (h->needs_copy)
3747 {
3748 asection *s;
3749 Elf_Internal_Rela rel;
3750 bfd_byte *loc;
3751
3752 /* This symbol needs a copy reloc. Set it up. */
3753
3754 BFD_ASSERT (h->dynindx != -1
3755 && (h->root.type == bfd_link_hash_defined
3756 || h->root.type == bfd_link_hash_defweak));
3757
3758 s = bfd_get_linker_section (dynobj, ".rela.bss");
3759 BFD_ASSERT (s != NULL);
3760
3761 rel.r_offset = (h->root.u.def.value
3762 + h->root.u.def.section->output_section->vma
3763 + h->root.u.def.section->output_offset);
3764 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3765 rel.r_addend = 0;
3766 loc = s->contents;
3767 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3768 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3769 }
3770
3771 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3772 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3773 || h == elf_hash_table (info)->hgot)
3774 sym->st_shndx = SHN_ABS;
3775
3776 return TRUE;
3777 }
3778
3779 /* Finish up the dynamic sections. */
3780
3781 static bfd_boolean
3782 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3783 struct bfd_link_info *info)
3784 {
3785 bfd *dynobj;
3786 asection *sgot;
3787 asection *sdyn;
3788
3789 dynobj = elf_hash_table (info)->dynobj;
3790
3791 sgot = bfd_get_linker_section (dynobj, ".got.plt");
3792 BFD_ASSERT (sgot != NULL);
3793 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3794
3795 if (elf_hash_table (info)->dynamic_sections_created)
3796 {
3797 asection *splt;
3798 Elf64_External_Dyn *dyncon, *dynconend;
3799
3800 BFD_ASSERT (sdyn != NULL);
3801
3802 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3803 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3804 for (; dyncon < dynconend; dyncon++)
3805 {
3806 Elf_Internal_Dyn dyn;
3807 const char *name;
3808 asection *s;
3809 struct elf_link_hash_entry *h;
3810
3811 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3812
3813 switch (dyn.d_tag)
3814 {
3815 default:
3816 break;
3817
3818 case DT_INIT:
3819 name = info->init_function;
3820 goto get_sym;
3821
3822 case DT_FINI:
3823 name = info->fini_function;
3824 get_sym:
3825 if (dyn.d_un.d_val != 0)
3826 {
3827 h = elf_link_hash_lookup (elf_hash_table (info), name,
3828 FALSE, FALSE, TRUE);
3829 if (h != NULL && (h->other & STO_SH5_ISA32))
3830 {
3831 dyn.d_un.d_val |= 1;
3832 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3833 }
3834 }
3835 break;
3836
3837 case DT_PLTGOT:
3838 name = ".got";
3839 goto get_vma;
3840
3841 case DT_JMPREL:
3842 name = ".rela.plt";
3843 get_vma:
3844 s = bfd_get_section_by_name (output_bfd, name);
3845 BFD_ASSERT (s != NULL);
3846 dyn.d_un.d_ptr = s->vma;
3847 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3848 break;
3849
3850 case DT_PLTRELSZ:
3851 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
3852 BFD_ASSERT (s != NULL);
3853 dyn.d_un.d_val = s->size;
3854 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3855 break;
3856
3857 case DT_RELASZ:
3858 /* My reading of the SVR4 ABI indicates that the
3859 procedure linkage table relocs (DT_JMPREL) should be
3860 included in the overall relocs (DT_RELA). This is
3861 what Solaris does. However, UnixWare can not handle
3862 that case. Therefore, we override the DT_RELASZ entry
3863 here to make it not include the JMPREL relocs. Since
3864 the linker script arranges for .rela.plt to follow all
3865 other relocation sections, we don't have to worry
3866 about changing the DT_RELA entry. */
3867 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
3868 if (s != NULL)
3869 dyn.d_un.d_val -= s->size;
3870 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3871 break;
3872 }
3873 }
3874
3875 /* Fill in the first entry in the procedure linkage table. */
3876 splt = bfd_get_linker_section (dynobj, ".plt");
3877 if (splt && splt->size > 0)
3878 {
3879 if (info->shared)
3880 {
3881 if (elf_sh64_pic_plt_entry == NULL)
3882 {
3883 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3884 elf_sh64_pic_plt_entry_be :
3885 elf_sh64_pic_plt_entry_le);
3886 }
3887 memcpy (splt->contents, elf_sh64_pic_plt_entry,
3888 elf_sh64_sizeof_plt (info));
3889 }
3890 else
3891 {
3892 if (elf_sh64_plt0_entry == NULL)
3893 {
3894 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
3895 elf_sh64_plt0_entry_be :
3896 elf_sh64_plt0_entry_le);
3897 }
3898 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
3899 movi_3shori_putval (output_bfd,
3900 sgot->output_section->vma
3901 + sgot->output_offset,
3902 splt->contents
3903 + elf_sh64_plt0_gotplt_offset (info));
3904 }
3905
3906 /* UnixWare sets the entsize of .plt to 8, although that doesn't
3907 really seem like the right value. */
3908 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
3909 }
3910 }
3911
3912 /* Fill in the first three entries in the global offset table. */
3913 if (sgot->size > 0)
3914 {
3915 if (sdyn == NULL)
3916 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
3917 else
3918 bfd_put_64 (output_bfd,
3919 sdyn->output_section->vma + sdyn->output_offset,
3920 sgot->contents);
3921 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3922 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
3923 }
3924
3925 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
3926
3927 return TRUE;
3928 }
3929
3930 /* Merge non visibility st_other attribute when the symbol comes from
3931 a dynamic object. */
3932 static void
3933 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
3934 const Elf_Internal_Sym *isym,
3935 bfd_boolean definition,
3936 bfd_boolean dynamic ATTRIBUTE_UNUSED)
3937 {
3938 if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0)
3939 {
3940 unsigned char other;
3941
3942 /* Take the balance of OTHER from the definition. */
3943 other = (definition ? isym->st_other : h->other);
3944 other &= ~ ELF_ST_VISIBILITY (-1);
3945 h->other = other | ELF_ST_VISIBILITY (h->other);
3946 }
3947
3948 return;
3949 }
3950
3951 static const struct bfd_elf_special_section sh64_elf64_special_sections[]=
3952 {
3953 { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 },
3954 { NULL, 0, 0, 0, 0 }
3955 };
3956
3957 #define TARGET_BIG_SYM bfd_elf64_sh64_vec
3958 #define TARGET_BIG_NAME "elf64-sh64"
3959 #define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec
3960 #define TARGET_LITTLE_NAME "elf64-sh64l"
3961 #define ELF_ARCH bfd_arch_sh
3962 #define ELF_MACHINE_CODE EM_SH
3963 #define ELF_MAXPAGESIZE 128
3964
3965 #define elf_symbol_leading_char '_'
3966
3967 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
3968 #define bfd_elf64_bfd_reloc_name_lookup \
3969 sh_elf64_reloc_name_lookup
3970 #define elf_info_to_howto sh_elf64_info_to_howto
3971
3972 /* Note: there's no relaxation at present. */
3973
3974 #define elf_backend_relocate_section sh_elf64_relocate_section
3975 #define bfd_elf64_bfd_get_relocated_section_contents \
3976 sh_elf64_get_relocated_section_contents
3977 #define elf_backend_object_p sh_elf64_set_mach_from_flags
3978 #define bfd_elf64_bfd_set_private_flags \
3979 sh_elf64_set_private_flags
3980 #define bfd_elf64_bfd_copy_private_bfd_data \
3981 sh_elf64_copy_private_data
3982 #define bfd_elf64_bfd_merge_private_bfd_data \
3983 sh_elf64_merge_private_data
3984 #define elf_backend_fake_sections sh64_elf64_fake_sections
3985
3986 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
3987 #define elf_backend_check_relocs sh_elf64_check_relocs
3988
3989 #define elf_backend_can_gc_sections 1
3990
3991 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
3992
3993 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
3994
3995 #define elf_backend_link_output_symbol_hook \
3996 sh64_elf64_link_output_symbol_hook
3997
3998 #define elf_backend_merge_symbol_attribute \
3999 sh64_elf64_merge_symbol_attribute
4000
4001 #define elf_backend_final_write_processing \
4002 sh64_elf64_final_write_processing
4003
4004 #define elf_backend_create_dynamic_sections \
4005 sh64_elf64_create_dynamic_sections
4006 #define bfd_elf64_bfd_link_hash_table_create \
4007 sh64_elf64_link_hash_table_create
4008 #define elf_backend_adjust_dynamic_symbol \
4009 sh64_elf64_adjust_dynamic_symbol
4010 #define elf_backend_size_dynamic_sections \
4011 sh64_elf64_size_dynamic_sections
4012 #define elf_backend_omit_section_dynsym \
4013 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4014 #define elf_backend_finish_dynamic_symbol \
4015 sh64_elf64_finish_dynamic_symbol
4016 #define elf_backend_finish_dynamic_sections \
4017 sh64_elf64_finish_dynamic_sections
4018 #define elf_backend_special_sections sh64_elf64_special_sections
4019
4020 #define elf_backend_want_got_plt 1
4021 #define elf_backend_plt_readonly 1
4022 #define elf_backend_want_plt_sym 0
4023 #define elf_backend_got_header_size 24
4024
4025 #include "elf64-target.h"
4026
4027 /* NetBSD support. */
4028 #undef TARGET_BIG_SYM
4029 #define TARGET_BIG_SYM bfd_elf64_sh64nbsd_vec
4030 #undef TARGET_BIG_NAME
4031 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
4032 #undef TARGET_LITTLE_SYM
4033 #define TARGET_LITTLE_SYM bfd_elf64_sh64lnbsd_vec
4034 #undef TARGET_LITTLE_NAME
4035 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
4036 #undef ELF_MAXPAGESIZE
4037 #define ELF_MAXPAGESIZE 0x10000
4038 #undef elf_symbol_leading_char
4039 #define elf_symbol_leading_char 0
4040
4041 #define elf64_bed elf64_sh64_nbsd_bed
4042
4043 #include "elf64-target.h"
4044
4045 /* Linux support. */
4046 #undef TARGET_BIG_SYM
4047 #define TARGET_BIG_SYM bfd_elf64_sh64blin_vec
4048 #undef TARGET_BIG_NAME
4049 #define TARGET_BIG_NAME "elf64-sh64big-linux"
4050 #undef TARGET_LITTLE_SYM
4051 #define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec
4052 #undef TARGET_LITTLE_NAME
4053 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
4054 #undef elf64_bed
4055 #define elf64_bed elf64_sh64_linux_bed
4056
4057 #include "elf64-target.h"