1 /* Renesas / SuperH SH specific support for 32-bit ELF
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
3 Free Software Foundation, Inc.
4 Contributed by Ian Lance Taylor, Cygnus Support.
5
6 This file is part of BFD, the Binary File Descriptor library.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
21
22 #include "bfd.h"
23 #include "sysdep.h"
24 #include "bfdlink.h"
25 #include "libbfd.h"
26 #include "elf-bfd.h"
27 #include "elf/sh.h"
28 #include "libiberty.h"
29 #include "../opcodes/sh-opc.h"
30
31 static bfd_reloc_status_type sh_elf_reloc
32 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
33 static bfd_reloc_status_type sh_elf_ignore_reloc
34 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
35 static bfd_boolean sh_elf_relax_delete_bytes
36 (bfd *, asection *, bfd_vma, int);
37 static bfd_boolean sh_elf_align_loads
38 (bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_boolean *);
39 #ifndef SH64_ELF
40 static bfd_boolean sh_elf_swap_insns
41 (bfd *, asection *, void *, bfd_byte *, bfd_vma);
42 #endif
43 static int sh_elf_optimized_tls_reloc
44 (struct bfd_link_info *, int, int);
45 static bfd_vma dtpoff_base
46 (struct bfd_link_info *);
47 static bfd_vma tpoff
48 (struct bfd_link_info *, bfd_vma);
49
50 /* The name of the dynamic interpreter. This is put in the .interp
51 section. */
52
53 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
54
55 static reloc_howto_type sh_elf_howto_table[] =
56 {
57 /* No relocation. */
58 HOWTO (R_SH_NONE, /* type */
59 0, /* rightshift */
60 0, /* size (0 = byte, 1 = short, 2 = long) */
61 0, /* bitsize */
62 FALSE, /* pc_relative */
63 0, /* bitpos */
64 complain_overflow_dont, /* complain_on_overflow */
65 sh_elf_ignore_reloc, /* special_function */
66 "R_SH_NONE", /* name */
67 FALSE, /* partial_inplace */
68 0, /* src_mask */
69 0, /* dst_mask */
70 FALSE), /* pcrel_offset */
71
72 /* 32 bit absolute relocation. Setting partial_inplace to TRUE and
73 src_mask to a non-zero value is similar to the COFF toolchain. */
74 HOWTO (R_SH_DIR32, /* type */
75 0, /* rightshift */
76 2, /* size (0 = byte, 1 = short, 2 = long) */
77 32, /* bitsize */
78 FALSE, /* pc_relative */
79 0, /* bitpos */
80 complain_overflow_bitfield, /* complain_on_overflow */
81 sh_elf_reloc, /* special_function */
82 "R_SH_DIR32", /* name */
83 TRUE, /* partial_inplace */
84 0xffffffff, /* src_mask */
85 0xffffffff, /* dst_mask */
86 FALSE), /* pcrel_offset */
87
88 /* 32 bit PC relative relocation. */
89 HOWTO (R_SH_REL32, /* type */
90 0, /* rightshift */
91 2, /* size (0 = byte, 1 = short, 2 = long) */
92 32, /* bitsize */
93 TRUE, /* pc_relative */
94 0, /* bitpos */
95 complain_overflow_signed, /* complain_on_overflow */
96 sh_elf_ignore_reloc, /* special_function */
97 "R_SH_REL32", /* name */
98 TRUE, /* partial_inplace */
99 0xffffffff, /* src_mask */
100 0xffffffff, /* dst_mask */
101 TRUE), /* pcrel_offset */
102
103 /* 8 bit PC relative branch divided by 2. */
104 HOWTO (R_SH_DIR8WPN, /* type */
105 1, /* rightshift */
106 1, /* size (0 = byte, 1 = short, 2 = long) */
107 8, /* bitsize */
108 TRUE, /* pc_relative */
109 0, /* bitpos */
110 complain_overflow_signed, /* complain_on_overflow */
111 sh_elf_ignore_reloc, /* special_function */
112 "R_SH_DIR8WPN", /* name */
113 TRUE, /* partial_inplace */
114 0xff, /* src_mask */
115 0xff, /* dst_mask */
116 TRUE), /* pcrel_offset */
117
118 /* 12 bit PC relative branch divided by 2. */
119 /* This cannot be partial_inplace because relaxation can't know the
120 eventual value of a symbol. */
121 HOWTO (R_SH_IND12W, /* type */
122 1, /* rightshift */
123 1, /* size (0 = byte, 1 = short, 2 = long) */
124 12, /* bitsize */
125 TRUE, /* pc_relative */
126 0, /* bitpos */
127 complain_overflow_signed, /* complain_on_overflow */
128 NULL, /* special_function */
129 "R_SH_IND12W", /* name */
130 FALSE, /* partial_inplace */
131 0x0, /* src_mask */
132 0xfff, /* dst_mask */
133 TRUE), /* pcrel_offset */
134
135 /* 8 bit unsigned PC relative divided by 4. */
136 HOWTO (R_SH_DIR8WPL, /* type */
137 2, /* rightshift */
138 1, /* size (0 = byte, 1 = short, 2 = long) */
139 8, /* bitsize */
140 TRUE, /* pc_relative */
141 0, /* bitpos */
142 complain_overflow_unsigned, /* complain_on_overflow */
143 sh_elf_ignore_reloc, /* special_function */
144 "R_SH_DIR8WPL", /* name */
145 TRUE, /* partial_inplace */
146 0xff, /* src_mask */
147 0xff, /* dst_mask */
148 TRUE), /* pcrel_offset */
149
150 /* 8 bit unsigned PC relative divided by 2. */
151 HOWTO (R_SH_DIR8WPZ, /* type */
152 1, /* rightshift */
153 1, /* size (0 = byte, 1 = short, 2 = long) */
154 8, /* bitsize */
155 TRUE, /* pc_relative */
156 0, /* bitpos */
157 complain_overflow_unsigned, /* complain_on_overflow */
158 sh_elf_ignore_reloc, /* special_function */
159 "R_SH_DIR8WPZ", /* name */
160 TRUE, /* partial_inplace */
161 0xff, /* src_mask */
162 0xff, /* dst_mask */
163 TRUE), /* pcrel_offset */
164
165 /* 8 bit GBR relative. FIXME: This only makes sense if we have some
166 special symbol for the GBR relative area, and that is not
167 implemented. */
168 HOWTO (R_SH_DIR8BP, /* type */
169 0, /* rightshift */
170 1, /* size (0 = byte, 1 = short, 2 = long) */
171 8, /* bitsize */
172 FALSE, /* pc_relative */
173 0, /* bitpos */
174 complain_overflow_unsigned, /* complain_on_overflow */
175 sh_elf_ignore_reloc, /* special_function */
176 "R_SH_DIR8BP", /* name */
177 FALSE, /* partial_inplace */
178 0, /* src_mask */
179 0xff, /* dst_mask */
180 TRUE), /* pcrel_offset */
181
182 /* 8 bit GBR relative divided by 2. FIXME: This only makes sense if
183 we have some special symbol for the GBR relative area, and that
184 is not implemented. */
185 HOWTO (R_SH_DIR8W, /* type */
186 1, /* rightshift */
187 1, /* size (0 = byte, 1 = short, 2 = long) */
188 8, /* bitsize */
189 FALSE, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_unsigned, /* complain_on_overflow */
192 sh_elf_ignore_reloc, /* special_function */
193 "R_SH_DIR8W", /* name */
194 FALSE, /* partial_inplace */
195 0, /* src_mask */
196 0xff, /* dst_mask */
197 TRUE), /* pcrel_offset */
198
199 /* 8 bit GBR relative divided by 4. FIXME: This only makes sense if
200 we have some special symbol for the GBR relative area, and that
201 is not implemented. */
202 HOWTO (R_SH_DIR8L, /* type */
203 2, /* rightshift */
204 1, /* size (0 = byte, 1 = short, 2 = long) */
205 8, /* bitsize */
206 FALSE, /* pc_relative */
207 0, /* bitpos */
208 complain_overflow_unsigned, /* complain_on_overflow */
209 sh_elf_ignore_reloc, /* special_function */
210 "R_SH_DIR8L", /* name */
211 FALSE, /* partial_inplace */
212 0, /* src_mask */
213 0xff, /* dst_mask */
214 TRUE), /* pcrel_offset */
215
216 /* 8 bit PC relative divided by 2 - but specified in a very odd way. */
217 HOWTO (R_SH_LOOP_START, /* type */
218 1, /* rightshift */
219 1, /* size (0 = byte, 1 = short, 2 = long) */
220 8, /* bitsize */
221 FALSE, /* pc_relative */
222 0, /* bitpos */
223 complain_overflow_signed, /* complain_on_overflow */
224 sh_elf_ignore_reloc, /* special_function */
225 "R_SH_LOOP_START", /* name */
226 TRUE, /* partial_inplace */
227 0xff, /* src_mask */
228 0xff, /* dst_mask */
229 TRUE), /* pcrel_offset */
230
231 /* 8 bit PC relative divided by 2 - but specified in a very odd way. */
232 HOWTO (R_SH_LOOP_END, /* type */
233 1, /* rightshift */
234 1, /* size (0 = byte, 1 = short, 2 = long) */
235 8, /* bitsize */
236 FALSE, /* pc_relative */
237 0, /* bitpos */
238 complain_overflow_signed, /* complain_on_overflow */
239 sh_elf_ignore_reloc, /* special_function */
240 "R_SH_LOOP_END", /* name */
241 TRUE, /* partial_inplace */
242 0xff, /* src_mask */
243 0xff, /* dst_mask */
244 TRUE), /* pcrel_offset */
245
246 EMPTY_HOWTO (12),
247 EMPTY_HOWTO (13),
248 EMPTY_HOWTO (14),
249 EMPTY_HOWTO (15),
250 EMPTY_HOWTO (16),
251 EMPTY_HOWTO (17),
252 EMPTY_HOWTO (18),
253 EMPTY_HOWTO (19),
254 EMPTY_HOWTO (20),
255 EMPTY_HOWTO (21),
256
257 /* The remaining relocs are a GNU extension used for relaxing. The
258 final pass of the linker never needs to do anything with any of
259 these relocs. Any required operations are handled by the
260 relaxation code. */
261
262 /* GNU extension to record C++ vtable hierarchy */
263 HOWTO (R_SH_GNU_VTINHERIT, /* type */
264 0, /* rightshift */
265 2, /* size (0 = byte, 1 = short, 2 = long) */
266 0, /* bitsize */
267 FALSE, /* pc_relative */
268 0, /* bitpos */
269 complain_overflow_dont, /* complain_on_overflow */
270 NULL, /* special_function */
271 "R_SH_GNU_VTINHERIT", /* name */
272 FALSE, /* partial_inplace */
273 0, /* src_mask */
274 0, /* dst_mask */
275 FALSE), /* pcrel_offset */
276
277 /* GNU extension to record C++ vtable member usage */
278 HOWTO (R_SH_GNU_VTENTRY, /* type */
279 0, /* rightshift */
280 2, /* size (0 = byte, 1 = short, 2 = long) */
281 0, /* bitsize */
282 FALSE, /* pc_relative */
283 0, /* bitpos */
284 complain_overflow_dont, /* complain_on_overflow */
285 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
286 "R_SH_GNU_VTENTRY", /* name */
287 FALSE, /* partial_inplace */
288 0, /* src_mask */
289 0, /* dst_mask */
290 FALSE), /* pcrel_offset */
291
292 /* An 8 bit switch table entry. This is generated for an expression
293 such as ``.word L1 - L2''. The offset holds the difference
294 between the reloc address and L2. */
295 HOWTO (R_SH_SWITCH8, /* type */
296 0, /* rightshift */
297 0, /* size (0 = byte, 1 = short, 2 = long) */
298 8, /* bitsize */
299 FALSE, /* pc_relative */
300 0, /* bitpos */
301 complain_overflow_unsigned, /* complain_on_overflow */
302 sh_elf_ignore_reloc, /* special_function */
303 "R_SH_SWITCH8", /* name */
304 FALSE, /* partial_inplace */
305 0, /* src_mask */
306 0, /* dst_mask */
307 TRUE), /* pcrel_offset */
308
309 /* A 16 bit switch table entry. This is generated for an expression
310 such as ``.word L1 - L2''. The offset holds the difference
311 between the reloc address and L2. */
312 HOWTO (R_SH_SWITCH16, /* type */
313 0, /* rightshift */
314 1, /* size (0 = byte, 1 = short, 2 = long) */
315 16, /* bitsize */
316 FALSE, /* pc_relative */
317 0, /* bitpos */
318 complain_overflow_unsigned, /* complain_on_overflow */
319 sh_elf_ignore_reloc, /* special_function */
320 "R_SH_SWITCH16", /* name */
321 FALSE, /* partial_inplace */
322 0, /* src_mask */
323 0, /* dst_mask */
324 TRUE), /* pcrel_offset */
325
326 /* A 32 bit switch table entry. This is generated for an expression
327 such as ``.long L1 - L2''. The offset holds the difference
328 between the reloc address and L2. */
329 HOWTO (R_SH_SWITCH32, /* type */
330 0, /* rightshift */
331 2, /* size (0 = byte, 1 = short, 2 = long) */
332 32, /* bitsize */
333 FALSE, /* pc_relative */
334 0, /* bitpos */
335 complain_overflow_unsigned, /* complain_on_overflow */
336 sh_elf_ignore_reloc, /* special_function */
337 "R_SH_SWITCH32", /* name */
338 FALSE, /* partial_inplace */
339 0, /* src_mask */
340 0, /* dst_mask */
341 TRUE), /* pcrel_offset */
342
343 /* Indicates a .uses pseudo-op. The compiler will generate .uses
344 pseudo-ops when it finds a function call which can be relaxed.
345 The offset field holds the PC relative offset to the instruction
346 which loads the register used in the function call. */
347 HOWTO (R_SH_USES, /* type */
348 0, /* rightshift */
349 1, /* size (0 = byte, 1 = short, 2 = long) */
350 0, /* bitsize */
351 FALSE, /* pc_relative */
352 0, /* bitpos */
353 complain_overflow_unsigned, /* complain_on_overflow */
354 sh_elf_ignore_reloc, /* special_function */
355 "R_SH_USES", /* name */
356 FALSE, /* partial_inplace */
357 0, /* src_mask */
358 0, /* dst_mask */
359 TRUE), /* pcrel_offset */
360
361 /* The assembler will generate this reloc for addresses referred to
362 by the register loads associated with USES relocs. The offset
363 field holds the number of times the address is referenced in the
364 object file. */
365 HOWTO (R_SH_COUNT, /* type */
366 0, /* rightshift */
367 1, /* size (0 = byte, 1 = short, 2 = long) */
368 0, /* bitsize */
369 FALSE, /* pc_relative */
370 0, /* bitpos */
371 complain_overflow_unsigned, /* complain_on_overflow */
372 sh_elf_ignore_reloc, /* special_function */
373 "R_SH_COUNT", /* name */
374 FALSE, /* partial_inplace */
375 0, /* src_mask */
376 0, /* dst_mask */
377 TRUE), /* pcrel_offset */
378
379 /* Indicates an alignment statement. The offset field is the power
380 of 2 to which subsequent portions of the object file must be
381 aligned. */
382 HOWTO (R_SH_ALIGN, /* type */
383 0, /* rightshift */
384 1, /* size (0 = byte, 1 = short, 2 = long) */
385 0, /* bitsize */
386 FALSE, /* pc_relative */
387 0, /* bitpos */
388 complain_overflow_unsigned, /* complain_on_overflow */
389 sh_elf_ignore_reloc, /* special_function */
390 "R_SH_ALIGN", /* name */
391 FALSE, /* partial_inplace */
392 0, /* src_mask */
393 0, /* dst_mask */
394 TRUE), /* pcrel_offset */
395
396 /* The assembler will generate this reloc before a block of
397 instructions. A section should be processed as assuming it
398 contains data, unless this reloc is seen. */
399 HOWTO (R_SH_CODE, /* type */
400 0, /* rightshift */
401 1, /* size (0 = byte, 1 = short, 2 = long) */
402 0, /* bitsize */
403 FALSE, /* pc_relative */
404 0, /* bitpos */
405 complain_overflow_unsigned, /* complain_on_overflow */
406 sh_elf_ignore_reloc, /* special_function */
407 "R_SH_CODE", /* name */
408 FALSE, /* partial_inplace */
409 0, /* src_mask */
410 0, /* dst_mask */
411 TRUE), /* pcrel_offset */
412
413 /* The assembler will generate this reloc after a block of
414 instructions when it sees data that is not instructions. */
415 HOWTO (R_SH_DATA, /* type */
416 0, /* rightshift */
417 1, /* size (0 = byte, 1 = short, 2 = long) */
418 0, /* bitsize */
419 FALSE, /* pc_relative */
420 0, /* bitpos */
421 complain_overflow_unsigned, /* complain_on_overflow */
422 sh_elf_ignore_reloc, /* special_function */
423 "R_SH_DATA", /* name */
424 FALSE, /* partial_inplace */
425 0, /* src_mask */
426 0, /* dst_mask */
427 TRUE), /* pcrel_offset */
428
429 /* The assembler generates this reloc for each label within a block
430 of instructions. This permits the linker to avoid swapping
431 instructions which are the targets of branches. */
432 HOWTO (R_SH_LABEL, /* type */
433 0, /* rightshift */
434 1, /* size (0 = byte, 1 = short, 2 = long) */
435 0, /* bitsize */
436 FALSE, /* pc_relative */
437 0, /* bitpos */
438 complain_overflow_unsigned, /* complain_on_overflow */
439 sh_elf_ignore_reloc, /* special_function */
440 "R_SH_LABEL", /* name */
441 FALSE, /* partial_inplace */
442 0, /* src_mask */
443 0, /* dst_mask */
444 TRUE), /* pcrel_offset */
445
446 /* The next 12 are only supported via linking in SHC-generated objects. */
447 HOWTO (R_SH_DIR16, /* type */
448 0, /* rightshift */
449 1, /* size (0 = byte, 1 = short, 2 = long) */
450 16, /* bitsize */
451 FALSE, /* pc_relative */
452 0, /* bitpos */
453 complain_overflow_dont, /* complain_on_overflow */
454 bfd_elf_generic_reloc, /* special_function */
455 "R_SH_DIR16", /* name */
456 FALSE, /* partial_inplace */
457 0, /* src_mask */
458 0xffff, /* dst_mask */
459 FALSE), /* pcrel_offset */
460
461 HOWTO (R_SH_DIR8, /* type */
462 0, /* rightshift */
463 0, /* size (0 = byte, 1 = short, 2 = long) */
464 8, /* bitsize */
465 FALSE, /* pc_relative */
466 0, /* bitpos */
467 complain_overflow_dont, /* complain_on_overflow */
468 bfd_elf_generic_reloc, /* special_function */
469 "R_SH_DIR8", /* name */
470 FALSE, /* partial_inplace */
471 0, /* src_mask */
472 0xff, /* dst_mask */
473 FALSE), /* pcrel_offset */
474
475 HOWTO (R_SH_DIR8UL, /* type */
476 2, /* rightshift */
477 0, /* size (0 = byte, 1 = short, 2 = long) */
478 8, /* bitsize */
479 FALSE, /* pc_relative */
480 0, /* bitpos */
481 complain_overflow_unsigned, /* complain_on_overflow */
482 bfd_elf_generic_reloc, /* special_function */
483 "R_SH_DIR8UL", /* name */
484 FALSE, /* partial_inplace */
485 0, /* src_mask */
486 0xff, /* dst_mask */
487 FALSE), /* pcrel_offset */
488
489 HOWTO (R_SH_DIR8UW, /* type */
490 1, /* rightshift */
491 0, /* size (0 = byte, 1 = short, 2 = long) */
492 8, /* bitsize */
493 FALSE, /* pc_relative */
494 0, /* bitpos */
495 complain_overflow_unsigned, /* complain_on_overflow */
496 bfd_elf_generic_reloc, /* special_function */
497 "R_SH_DIR8UW", /* name */
498 FALSE, /* partial_inplace */
499 0, /* src_mask */
500 0xff, /* dst_mask */
501 FALSE), /* pcrel_offset */
502
503 HOWTO (R_SH_DIR8U, /* type */
504 0, /* rightshift */
505 0, /* size (0 = byte, 1 = short, 2 = long) */
506 8, /* bitsize */
507 FALSE, /* pc_relative */
508 0, /* bitpos */
509 complain_overflow_unsigned, /* complain_on_overflow */
510 bfd_elf_generic_reloc, /* special_function */
511 "R_SH_DIR8U", /* name */
512 FALSE, /* partial_inplace */
513 0, /* src_mask */
514 0xff, /* dst_mask */
515 FALSE), /* pcrel_offset */
516
517 HOWTO (R_SH_DIR8SW, /* type */
518 1, /* rightshift */
519 0, /* size (0 = byte, 1 = short, 2 = long) */
520 8, /* bitsize */
521 FALSE, /* pc_relative */
522 0, /* bitpos */
523 complain_overflow_signed, /* complain_on_overflow */
524 bfd_elf_generic_reloc, /* special_function */
525 "R_SH_DIR8SW", /* name */
526 FALSE, /* partial_inplace */
527 0, /* src_mask */
528 0xff, /* dst_mask */
529 FALSE), /* pcrel_offset */
530
531 HOWTO (R_SH_DIR8S, /* type */
532 0, /* rightshift */
533 0, /* size (0 = byte, 1 = short, 2 = long) */
534 8, /* bitsize */
535 FALSE, /* pc_relative */
536 0, /* bitpos */
537 complain_overflow_signed, /* complain_on_overflow */
538 bfd_elf_generic_reloc, /* special_function */
539 "R_SH_DIR8S", /* name */
540 FALSE, /* partial_inplace */
541 0, /* src_mask */
542 0xff, /* dst_mask */
543 FALSE), /* pcrel_offset */
544
545 HOWTO (R_SH_DIR4UL, /* type */
546 2, /* rightshift */
547 0, /* size (0 = byte, 1 = short, 2 = long) */
548 4, /* bitsize */
549 FALSE, /* pc_relative */
550 0, /* bitpos */
551 complain_overflow_unsigned, /* complain_on_overflow */
552 bfd_elf_generic_reloc, /* special_function */
553 "R_SH_DIR4UL", /* name */
554 FALSE, /* partial_inplace */
555 0, /* src_mask */
556 0x0f, /* dst_mask */
557 FALSE), /* pcrel_offset */
558
559 HOWTO (R_SH_DIR4UW, /* type */
560 1, /* rightshift */
561 0, /* size (0 = byte, 1 = short, 2 = long) */
562 4, /* bitsize */
563 FALSE, /* pc_relative */
564 0, /* bitpos */
565 complain_overflow_unsigned, /* complain_on_overflow */
566 bfd_elf_generic_reloc, /* special_function */
567 "R_SH_DIR4UW", /* name */
568 FALSE, /* partial_inplace */
569 0, /* src_mask */
570 0x0f, /* dst_mask */
571 FALSE), /* pcrel_offset */
572
573 HOWTO (R_SH_DIR4U, /* type */
574 0, /* rightshift */
575 0, /* size (0 = byte, 1 = short, 2 = long) */
576 4, /* bitsize */
577 FALSE, /* pc_relative */
578 0, /* bitpos */
579 complain_overflow_unsigned, /* complain_on_overflow */
580 bfd_elf_generic_reloc, /* special_function */
581 "R_SH_DIR4U", /* name */
582 FALSE, /* partial_inplace */
583 0, /* src_mask */
584 0x0f, /* dst_mask */
585 FALSE), /* pcrel_offset */
586
587 HOWTO (R_SH_PSHA, /* type */
588 0, /* rightshift */
589 1, /* size (0 = byte, 1 = short, 2 = long) */
590 7, /* bitsize */
591 FALSE, /* pc_relative */
592 4, /* bitpos */
593 complain_overflow_signed, /* complain_on_overflow */
594 bfd_elf_generic_reloc, /* special_function */
595 "R_SH_PSHA", /* name */
596 FALSE, /* partial_inplace */
597 0, /* src_mask */
598 0x0f, /* dst_mask */
599 FALSE), /* pcrel_offset */
600
601 HOWTO (R_SH_PSHL, /* type */
602 0, /* rightshift */
603 1, /* size (0 = byte, 1 = short, 2 = long) */
604 7, /* bitsize */
605 FALSE, /* pc_relative */
606 4, /* bitpos */
607 complain_overflow_signed, /* complain_on_overflow */
608 bfd_elf_generic_reloc, /* special_function */
609 "R_SH_PSHL", /* name */
610 FALSE, /* partial_inplace */
611 0, /* src_mask */
612 0x0f, /* dst_mask */
613 FALSE), /* pcrel_offset */
614
615 #ifdef INCLUDE_SHMEDIA
616 /* Used in SHLLI.L and SHLRI.L. */
617 HOWTO (R_SH_DIR5U, /* type */
618 0, /* rightshift */
619 2, /* size (0 = byte, 1 = short, 2 = long) */
620 5, /* bitsize */
621 FALSE, /* pc_relative */
622 10, /* bitpos */
623 complain_overflow_unsigned, /* complain_on_overflow */
624 bfd_elf_generic_reloc, /* special_function */
625 "R_SH_DIR5U", /* name */
626 FALSE, /* partial_inplace */
627 0, /* src_mask */
628 0xfc00, /* dst_mask */
629 FALSE), /* pcrel_offset */
630
631 /* Used in SHARI, SHLLI et al. */
632 HOWTO (R_SH_DIR6U, /* type */
633 0, /* rightshift */
634 2, /* size (0 = byte, 1 = short, 2 = long) */
635 6, /* bitsize */
636 FALSE, /* pc_relative */
637 10, /* bitpos */
638 complain_overflow_unsigned, /* complain_on_overflow */
639 bfd_elf_generic_reloc, /* special_function */
640 "R_SH_DIR6U", /* name */
641 FALSE, /* partial_inplace */
642 0, /* src_mask */
643 0xfc00, /* dst_mask */
644 FALSE), /* pcrel_offset */
645
646 /* Used in BxxI, LDHI.L et al. */
647 HOWTO (R_SH_DIR6S, /* type */
648 0, /* rightshift */
649 2, /* size (0 = byte, 1 = short, 2 = long) */
650 6, /* bitsize */
651 FALSE, /* pc_relative */
652 10, /* bitpos */
653 complain_overflow_signed, /* complain_on_overflow */
654 bfd_elf_generic_reloc, /* special_function */
655 "R_SH_DIR6S", /* name */
656 FALSE, /* partial_inplace */
657 0, /* src_mask */
658 0xfc00, /* dst_mask */
659 FALSE), /* pcrel_offset */
660
661 /* Used in ADDI, ANDI et al. */
662 HOWTO (R_SH_DIR10S, /* type */
663 0, /* rightshift */
664 2, /* size (0 = byte, 1 = short, 2 = long) */
665 10, /* bitsize */
666 FALSE, /* pc_relative */
667 10, /* bitpos */
668 complain_overflow_signed, /* complain_on_overflow */
669 bfd_elf_generic_reloc, /* special_function */
670 "R_SH_DIR10S", /* name */
671 FALSE, /* partial_inplace */
672 0, /* src_mask */
673 0xffc00, /* dst_mask */
674 FALSE), /* pcrel_offset */
675
676 /* Used in LD.UW, ST.W et al. */
677 HOWTO (R_SH_DIR10SW, /* type */
678 1, /* rightshift */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
680 11, /* bitsize */
681 FALSE, /* pc_relative */
682 10, /* bitpos */
683 complain_overflow_signed, /* complain_on_overflow */
684 bfd_elf_generic_reloc, /* special_function */
685 "R_SH_DIR10SW", /* name */
686 FALSE, /* partial_inplace */
687 0, /* src_mask */
688 0xffc00, /* dst_mask */
689 FALSE), /* pcrel_offset */
690
691 /* Used in LD.L, FLD.S et al. */
692 HOWTO (R_SH_DIR10SL, /* type */
693 2, /* rightshift */
694 2, /* size (0 = byte, 1 = short, 2 = long) */
695 12, /* bitsize */
696 FALSE, /* pc_relative */
697 10, /* bitpos */
698 complain_overflow_signed, /* complain_on_overflow */
699 bfd_elf_generic_reloc, /* special_function */
700 "R_SH_DIR10SL", /* name */
701 FALSE, /* partial_inplace */
702 0, /* src_mask */
703 0xffc00, /* dst_mask */
704 FALSE), /* pcrel_offset */
705
706 /* Used in FLD.D, FST.P et al. */
707 HOWTO (R_SH_DIR10SQ, /* type */
708 3, /* rightshift */
709 2, /* size (0 = byte, 1 = short, 2 = long) */
710 13, /* bitsize */
711 FALSE, /* pc_relative */
712 10, /* bitpos */
713 complain_overflow_signed, /* complain_on_overflow */
714 bfd_elf_generic_reloc, /* special_function */
715 "R_SH_DIR10SQ", /* name */
716 FALSE, /* partial_inplace */
717 0, /* src_mask */
718 0xffc00, /* dst_mask */
719 FALSE), /* pcrel_offset */
720
721 #else
722 EMPTY_HOWTO (45),
723 EMPTY_HOWTO (46),
724 EMPTY_HOWTO (47),
725 EMPTY_HOWTO (48),
726 EMPTY_HOWTO (49),
727 EMPTY_HOWTO (50),
728 EMPTY_HOWTO (51),
729 #endif
730
731 EMPTY_HOWTO (52),
732
733 HOWTO (R_SH_DIR16S, /* type */
734 0, /* rightshift */
735 1, /* size (0 = byte, 1 = short, 2 = long) */
736 16, /* bitsize */
737 FALSE, /* pc_relative */
738 0, /* bitpos */
739 complain_overflow_signed, /* complain_on_overflow */
740 bfd_elf_generic_reloc, /* special_function */
741 "R_SH_DIR16S", /* name */
742 FALSE, /* partial_inplace */
743 0, /* src_mask */
744 0xffff, /* dst_mask */
745 FALSE), /* pcrel_offset */
746
747 EMPTY_HOWTO (54),
748 EMPTY_HOWTO (55),
749 EMPTY_HOWTO (56),
750 EMPTY_HOWTO (57),
751 EMPTY_HOWTO (58),
752 EMPTY_HOWTO (59),
753 EMPTY_HOWTO (60),
754 EMPTY_HOWTO (61),
755 EMPTY_HOWTO (62),
756 EMPTY_HOWTO (63),
757 EMPTY_HOWTO (64),
758 EMPTY_HOWTO (65),
759 EMPTY_HOWTO (66),
760 EMPTY_HOWTO (67),
761 EMPTY_HOWTO (68),
762 EMPTY_HOWTO (69),
763 EMPTY_HOWTO (70),
764 EMPTY_HOWTO (71),
765 EMPTY_HOWTO (72),
766 EMPTY_HOWTO (73),
767 EMPTY_HOWTO (74),
768 EMPTY_HOWTO (75),
769 EMPTY_HOWTO (76),
770 EMPTY_HOWTO (77),
771 EMPTY_HOWTO (78),
772 EMPTY_HOWTO (79),
773 EMPTY_HOWTO (80),
774 EMPTY_HOWTO (81),
775 EMPTY_HOWTO (82),
776 EMPTY_HOWTO (83),
777 EMPTY_HOWTO (84),
778 EMPTY_HOWTO (85),
779 EMPTY_HOWTO (86),
780 EMPTY_HOWTO (87),
781 EMPTY_HOWTO (88),
782 EMPTY_HOWTO (89),
783 EMPTY_HOWTO (90),
784 EMPTY_HOWTO (91),
785 EMPTY_HOWTO (92),
786 EMPTY_HOWTO (93),
787 EMPTY_HOWTO (94),
788 EMPTY_HOWTO (95),
789 EMPTY_HOWTO (96),
790 EMPTY_HOWTO (97),
791 EMPTY_HOWTO (98),
792 EMPTY_HOWTO (99),
793 EMPTY_HOWTO (100),
794 EMPTY_HOWTO (101),
795 EMPTY_HOWTO (102),
796 EMPTY_HOWTO (103),
797 EMPTY_HOWTO (104),
798 EMPTY_HOWTO (105),
799 EMPTY_HOWTO (106),
800 EMPTY_HOWTO (107),
801 EMPTY_HOWTO (108),
802 EMPTY_HOWTO (109),
803 EMPTY_HOWTO (110),
804 EMPTY_HOWTO (111),
805 EMPTY_HOWTO (112),
806 EMPTY_HOWTO (113),
807 EMPTY_HOWTO (114),
808 EMPTY_HOWTO (115),
809 EMPTY_HOWTO (116),
810 EMPTY_HOWTO (117),
811 EMPTY_HOWTO (118),
812 EMPTY_HOWTO (119),
813 EMPTY_HOWTO (120),
814 EMPTY_HOWTO (121),
815 EMPTY_HOWTO (122),
816 EMPTY_HOWTO (123),
817 EMPTY_HOWTO (124),
818 EMPTY_HOWTO (125),
819 EMPTY_HOWTO (126),
820 EMPTY_HOWTO (127),
821 EMPTY_HOWTO (128),
822 EMPTY_HOWTO (129),
823 EMPTY_HOWTO (130),
824 EMPTY_HOWTO (131),
825 EMPTY_HOWTO (132),
826 EMPTY_HOWTO (133),
827 EMPTY_HOWTO (134),
828 EMPTY_HOWTO (135),
829 EMPTY_HOWTO (136),
830 EMPTY_HOWTO (137),
831 EMPTY_HOWTO (138),
832 EMPTY_HOWTO (139),
833 EMPTY_HOWTO (140),
834 EMPTY_HOWTO (141),
835 EMPTY_HOWTO (142),
836 EMPTY_HOWTO (143),
837
838 HOWTO (R_SH_TLS_GD_32, /* type */
839 0, /* rightshift */
840 2, /* size (0 = byte, 1 = short, 2 = long) */
841 32, /* bitsize */
842 FALSE, /* pc_relative */
843 0, /* bitpos */
844 complain_overflow_bitfield, /* complain_on_overflow */
845 bfd_elf_generic_reloc, /* */
846 "R_SH_TLS_GD_32", /* name */
847 TRUE, /* partial_inplace */
848 0xffffffff, /* src_mask */
849 0xffffffff, /* dst_mask */
850 FALSE), /* pcrel_offset */
851
852 HOWTO (R_SH_TLS_LD_32, /* type */
853 0, /* rightshift */
854 2, /* size (0 = byte, 1 = short, 2 = long) */
855 32, /* bitsize */
856 FALSE, /* pc_relative */
857 0, /* bitpos */
858 complain_overflow_bitfield, /* complain_on_overflow */
859 bfd_elf_generic_reloc, /* */
860 "R_SH_TLS_LD_32", /* name */
861 TRUE, /* partial_inplace */
862 0xffffffff, /* src_mask */
863 0xffffffff, /* dst_mask */
864 FALSE), /* pcrel_offset */
865
866 HOWTO (R_SH_TLS_LDO_32, /* type */
867 0, /* rightshift */
868 2, /* size (0 = byte, 1 = short, 2 = long) */
869 32, /* bitsize */
870 FALSE, /* pc_relative */
871 0, /* bitpos */
872 complain_overflow_bitfield, /* complain_on_overflow */
873 bfd_elf_generic_reloc, /* */
874 "R_SH_TLS_LDO_32", /* name */
875 TRUE, /* partial_inplace */
876 0xffffffff, /* src_mask */
877 0xffffffff, /* dst_mask */
878 FALSE), /* pcrel_offset */
879
880 HOWTO (R_SH_TLS_IE_32, /* type */
881 0, /* rightshift */
882 2, /* size (0 = byte, 1 = short, 2 = long) */
883 32, /* bitsize */
884 FALSE, /* pc_relative */
885 0, /* bitpos */
886 complain_overflow_bitfield, /* complain_on_overflow */
887 bfd_elf_generic_reloc, /* */
888 "R_SH_TLS_IE_32", /* name */
889 TRUE, /* partial_inplace */
890 0xffffffff, /* src_mask */
891 0xffffffff, /* dst_mask */
892 FALSE), /* pcrel_offset */
893
894 HOWTO (R_SH_TLS_LE_32, /* type */
895 0, /* rightshift */
896 2, /* size (0 = byte, 1 = short, 2 = long) */
897 32, /* bitsize */
898 FALSE, /* pc_relative */
899 0, /* bitpos */
900 complain_overflow_bitfield, /* complain_on_overflow */
901 bfd_elf_generic_reloc, /* */
902 "R_SH_TLS_LE_32", /* name */
903 TRUE, /* partial_inplace */
904 0xffffffff, /* src_mask */
905 0xffffffff, /* dst_mask */
906 FALSE), /* pcrel_offset */
907
908 HOWTO (R_SH_TLS_DTPMOD32, /* type */
909 0, /* rightshift */
910 2, /* size (0 = byte, 1 = short, 2 = long) */
911 32, /* bitsize */
912 FALSE, /* pc_relative */
913 0, /* bitpos */
914 complain_overflow_bitfield, /* complain_on_overflow */
915 bfd_elf_generic_reloc, /* */
916 "R_SH_TLS_DTPMOD32", /* name */
917 TRUE, /* partial_inplace */
918 0xffffffff, /* src_mask */
919 0xffffffff, /* dst_mask */
920 FALSE), /* pcrel_offset */
921
922 HOWTO (R_SH_TLS_DTPOFF32, /* type */
923 0, /* rightshift */
924 2, /* size (0 = byte, 1 = short, 2 = long) */
925 32, /* bitsize */
926 FALSE, /* pc_relative */
927 0, /* bitpos */
928 complain_overflow_bitfield, /* complain_on_overflow */
929 bfd_elf_generic_reloc, /* */
930 "R_SH_TLS_DTPOFF32", /* name */
931 TRUE, /* partial_inplace */
932 0xffffffff, /* src_mask */
933 0xffffffff, /* dst_mask */
934 FALSE), /* pcrel_offset */
935
936 HOWTO (R_SH_TLS_TPOFF32, /* type */
937 0, /* rightshift */
938 2, /* size (0 = byte, 1 = short, 2 = long) */
939 32, /* bitsize */
940 FALSE, /* pc_relative */
941 0, /* bitpos */
942 complain_overflow_bitfield, /* complain_on_overflow */
943 bfd_elf_generic_reloc, /* */
944 "R_SH_TLS_TPOFF32", /* name */
945 TRUE, /* partial_inplace */
946 0xffffffff, /* src_mask */
947 0xffffffff, /* dst_mask */
948 FALSE), /* pcrel_offset */
949
950 EMPTY_HOWTO (152),
951 EMPTY_HOWTO (153),
952 EMPTY_HOWTO (154),
953 EMPTY_HOWTO (155),
954 EMPTY_HOWTO (156),
955 EMPTY_HOWTO (157),
956 EMPTY_HOWTO (158),
957 EMPTY_HOWTO (159),
958
959 HOWTO (R_SH_GOT32, /* type */
960 0, /* rightshift */
961 2, /* size (0 = byte, 1 = short, 2 = long) */
962 32, /* bitsize */
963 FALSE, /* pc_relative */
964 0, /* bitpos */
965 complain_overflow_bitfield, /* complain_on_overflow */
966 bfd_elf_generic_reloc, /* */
967 "R_SH_GOT32", /* name */
968 TRUE, /* partial_inplace */
969 0xffffffff, /* src_mask */
970 0xffffffff, /* dst_mask */
971 FALSE), /* pcrel_offset */
972
973 HOWTO (R_SH_PLT32, /* type */
974 0, /* rightshift */
975 2, /* size (0 = byte, 1 = short, 2 = long) */
976 32, /* bitsize */
977 TRUE, /* pc_relative */
978 0, /* bitpos */
979 complain_overflow_bitfield, /* complain_on_overflow */
980 bfd_elf_generic_reloc, /* */
981 "R_SH_PLT32", /* name */
982 TRUE, /* partial_inplace */
983 0xffffffff, /* src_mask */
984 0xffffffff, /* dst_mask */
985 TRUE), /* pcrel_offset */
986
987 HOWTO (R_SH_COPY, /* type */
988 0, /* rightshift */
989 2, /* size (0 = byte, 1 = short, 2 = long) */
990 32, /* bitsize */
991 FALSE, /* pc_relative */
992 0, /* bitpos */
993 complain_overflow_bitfield, /* complain_on_overflow */
994 bfd_elf_generic_reloc, /* */
995 "R_SH_COPY", /* name */
996 TRUE, /* partial_inplace */
997 0xffffffff, /* src_mask */
998 0xffffffff, /* dst_mask */
999 FALSE), /* pcrel_offset */
1000
1001 HOWTO (R_SH_GLOB_DAT, /* type */
1002 0, /* rightshift */
1003 2, /* size (0 = byte, 1 = short, 2 = long) */
1004 32, /* bitsize */
1005 FALSE, /* pc_relative */
1006 0, /* bitpos */
1007 complain_overflow_bitfield, /* complain_on_overflow */
1008 bfd_elf_generic_reloc, /* */
1009 "R_SH_GLOB_DAT", /* name */
1010 TRUE, /* partial_inplace */
1011 0xffffffff, /* src_mask */
1012 0xffffffff, /* dst_mask */
1013 FALSE), /* pcrel_offset */
1014
1015 HOWTO (R_SH_JMP_SLOT, /* type */
1016 0, /* rightshift */
1017 2, /* size (0 = byte, 1 = short, 2 = long) */
1018 32, /* bitsize */
1019 FALSE, /* pc_relative */
1020 0, /* bitpos */
1021 complain_overflow_bitfield, /* complain_on_overflow */
1022 bfd_elf_generic_reloc, /* */
1023 "R_SH_JMP_SLOT", /* name */
1024 TRUE, /* partial_inplace */
1025 0xffffffff, /* src_mask */
1026 0xffffffff, /* dst_mask */
1027 FALSE), /* pcrel_offset */
1028
1029 HOWTO (R_SH_RELATIVE, /* type */
1030 0, /* rightshift */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1032 32, /* bitsize */
1033 FALSE, /* pc_relative */
1034 0, /* bitpos */
1035 complain_overflow_bitfield, /* complain_on_overflow */
1036 bfd_elf_generic_reloc, /* */
1037 "R_SH_RELATIVE", /* name */
1038 TRUE, /* partial_inplace */
1039 0xffffffff, /* src_mask */
1040 0xffffffff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
1042
1043 HOWTO (R_SH_GOTOFF, /* type */
1044 0, /* rightshift */
1045 2, /* size (0 = byte, 1 = short, 2 = long) */
1046 32, /* bitsize */
1047 FALSE, /* pc_relative */
1048 0, /* bitpos */
1049 complain_overflow_bitfield, /* complain_on_overflow */
1050 bfd_elf_generic_reloc, /* */
1051 "R_SH_GOTOFF", /* name */
1052 TRUE, /* partial_inplace */
1053 0xffffffff, /* src_mask */
1054 0xffffffff, /* dst_mask */
1055 FALSE), /* pcrel_offset */
1056
1057 HOWTO (R_SH_GOTPC, /* type */
1058 0, /* rightshift */
1059 2, /* size (0 = byte, 1 = short, 2 = long) */
1060 32, /* bitsize */
1061 TRUE, /* pc_relative */
1062 0, /* bitpos */
1063 complain_overflow_bitfield, /* complain_on_overflow */
1064 bfd_elf_generic_reloc, /* */
1065 "R_SH_GOTPC", /* name */
1066 TRUE, /* partial_inplace */
1067 0xffffffff, /* src_mask */
1068 0xffffffff, /* dst_mask */
1069 TRUE), /* pcrel_offset */
1070
1071 HOWTO (R_SH_GOTPLT32, /* type */
1072 0, /* rightshift */
1073 2, /* size (0 = byte, 1 = short, 2 = long) */
1074 32, /* bitsize */
1075 FALSE, /* pc_relative */
1076 0, /* bitpos */
1077 complain_overflow_bitfield, /* complain_on_overflow */
1078 bfd_elf_generic_reloc, /* */
1079 "R_SH_GOTPLT32", /* name */
1080 FALSE, /* partial_inplace */
1081 0xffffffff, /* src_mask */
1082 0xffffffff, /* dst_mask */
1083 FALSE), /* pcrel_offset */
1084
1085 #ifdef INCLUDE_SHMEDIA
1086 /* Used in MOVI and SHORI (x & 65536). */
1087 HOWTO (R_SH_GOT_LOW16, /* type */
1088 0, /* rightshift */
1089 2, /* size (0 = byte, 1 = short, 2 = long) */
1090 64, /* bitsize */
1091 FALSE, /* pc_relative */
1092 10, /* bitpos */
1093 complain_overflow_dont, /* complain_on_overflow */
1094 bfd_elf_generic_reloc, /* special_function */
1095 "R_SH_GOT_LOW16", /* name */
1096 FALSE, /* partial_inplace */
1097 0, /* src_mask */
1098 0x3fffc00, /* dst_mask */
1099 FALSE), /* pcrel_offset */
1100
1101 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1102 HOWTO (R_SH_GOT_MEDLOW16, /* type */
1103 16, /* rightshift */
1104 2, /* size (0 = byte, 1 = short, 2 = long) */
1105 64, /* bitsize */
1106 FALSE, /* pc_relative */
1107 10, /* bitpos */
1108 complain_overflow_dont, /* complain_on_overflow */
1109 bfd_elf_generic_reloc, /* special_function */
1110 "R_SH_GOT_MEDLOW16", /* name */
1111 FALSE, /* partial_inplace */
1112 0, /* src_mask */
1113 0x3fffc00, /* dst_mask */
1114 FALSE), /* pcrel_offset */
1115
1116 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1117 HOWTO (R_SH_GOT_MEDHI16, /* type */
1118 32, /* rightshift */
1119 2, /* size (0 = byte, 1 = short, 2 = long) */
1120 64, /* bitsize */
1121 FALSE, /* pc_relative */
1122 10, /* bitpos */
1123 complain_overflow_dont, /* complain_on_overflow */
1124 bfd_elf_generic_reloc, /* special_function */
1125 "R_SH_GOT_MEDHI16", /* name */
1126 FALSE, /* partial_inplace */
1127 0, /* src_mask */
1128 0x3fffc00, /* dst_mask */
1129 FALSE), /* pcrel_offset */
1130
1131 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1132 HOWTO (R_SH_GOT_HI16, /* type */
1133 48, /* rightshift */
1134 2, /* size (0 = byte, 1 = short, 2 = long) */
1135 64, /* bitsize */
1136 FALSE, /* pc_relative */
1137 10, /* bitpos */
1138 complain_overflow_dont, /* complain_on_overflow */
1139 bfd_elf_generic_reloc, /* special_function */
1140 "R_SH_GOT_HI16", /* name */
1141 FALSE, /* partial_inplace */
1142 0, /* src_mask */
1143 0x3fffc00, /* dst_mask */
1144 FALSE), /* pcrel_offset */
1145
1146 /* Used in MOVI and SHORI (x & 65536). */
1147 HOWTO (R_SH_GOTPLT_LOW16, /* type */
1148 0, /* rightshift */
1149 2, /* size (0 = byte, 1 = short, 2 = long) */
1150 64, /* bitsize */
1151 FALSE, /* pc_relative */
1152 10, /* bitpos */
1153 complain_overflow_dont, /* complain_on_overflow */
1154 bfd_elf_generic_reloc, /* special_function */
1155 "R_SH_GOTPLT_LOW16", /* name */
1156 FALSE, /* partial_inplace */
1157 0, /* src_mask */
1158 0x3fffc00, /* dst_mask */
1159 FALSE), /* pcrel_offset */
1160
1161 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1162 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */
1163 16, /* rightshift */
1164 2, /* size (0 = byte, 1 = short, 2 = long) */
1165 64, /* bitsize */
1166 FALSE, /* pc_relative */
1167 10, /* bitpos */
1168 complain_overflow_dont, /* complain_on_overflow */
1169 bfd_elf_generic_reloc, /* special_function */
1170 "R_SH_GOTPLT_MEDLOW16", /* name */
1171 FALSE, /* partial_inplace */
1172 0, /* src_mask */
1173 0x3fffc00, /* dst_mask */
1174 FALSE), /* pcrel_offset */
1175
1176 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1177 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */
1178 32, /* rightshift */
1179 2, /* size (0 = byte, 1 = short, 2 = long) */
1180 64, /* bitsize */
1181 FALSE, /* pc_relative */
1182 10, /* bitpos */
1183 complain_overflow_dont, /* complain_on_overflow */
1184 bfd_elf_generic_reloc, /* special_function */
1185 "R_SH_GOTPLT_MEDHI16", /* name */
1186 FALSE, /* partial_inplace */
1187 0, /* src_mask */
1188 0x3fffc00, /* dst_mask */
1189 FALSE), /* pcrel_offset */
1190
1191 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1192 HOWTO (R_SH_GOTPLT_HI16, /* type */
1193 48, /* rightshift */
1194 2, /* size (0 = byte, 1 = short, 2 = long) */
1195 64, /* bitsize */
1196 FALSE, /* pc_relative */
1197 10, /* bitpos */
1198 complain_overflow_dont, /* complain_on_overflow */
1199 bfd_elf_generic_reloc, /* special_function */
1200 "R_SH_GOTPLT_HI16", /* name */
1201 FALSE, /* partial_inplace */
1202 0, /* src_mask */
1203 0x3fffc00, /* dst_mask */
1204 FALSE), /* pcrel_offset */
1205
1206 /* Used in MOVI and SHORI (x & 65536). */
1207 HOWTO (R_SH_PLT_LOW16, /* type */
1208 0, /* rightshift */
1209 2, /* size (0 = byte, 1 = short, 2 = long) */
1210 64, /* bitsize */
1211 TRUE, /* pc_relative */
1212 10, /* bitpos */
1213 complain_overflow_dont, /* complain_on_overflow */
1214 bfd_elf_generic_reloc, /* special_function */
1215 "R_SH_PLT_LOW16", /* name */
1216 FALSE, /* partial_inplace */
1217 0, /* src_mask */
1218 0x3fffc00, /* dst_mask */
1219 TRUE), /* pcrel_offset */
1220
1221 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1222 HOWTO (R_SH_PLT_MEDLOW16, /* type */
1223 16, /* rightshift */
1224 2, /* size (0 = byte, 1 = short, 2 = long) */
1225 64, /* bitsize */
1226 TRUE, /* pc_relative */
1227 10, /* bitpos */
1228 complain_overflow_dont, /* complain_on_overflow */
1229 bfd_elf_generic_reloc, /* special_function */
1230 "R_SH_PLT_MEDLOW16", /* name */
1231 FALSE, /* partial_inplace */
1232 0, /* src_mask */
1233 0x3fffc00, /* dst_mask */
1234 TRUE), /* pcrel_offset */
1235
1236 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1237 HOWTO (R_SH_PLT_MEDHI16, /* type */
1238 32, /* rightshift */
1239 2, /* size (0 = byte, 1 = short, 2 = long) */
1240 64, /* bitsize */
1241 TRUE, /* pc_relative */
1242 10, /* bitpos */
1243 complain_overflow_dont, /* complain_on_overflow */
1244 bfd_elf_generic_reloc, /* special_function */
1245 "R_SH_PLT_MEDHI16", /* name */
1246 FALSE, /* partial_inplace */
1247 0, /* src_mask */
1248 0x3fffc00, /* dst_mask */
1249 TRUE), /* pcrel_offset */
1250
1251 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1252 HOWTO (R_SH_PLT_HI16, /* type */
1253 48, /* rightshift */
1254 2, /* size (0 = byte, 1 = short, 2 = long) */
1255 64, /* bitsize */
1256 TRUE, /* pc_relative */
1257 10, /* bitpos */
1258 complain_overflow_dont, /* complain_on_overflow */
1259 bfd_elf_generic_reloc, /* special_function */
1260 "R_SH_PLT_HI16", /* name */
1261 FALSE, /* partial_inplace */
1262 0, /* src_mask */
1263 0x3fffc00, /* dst_mask */
1264 TRUE), /* pcrel_offset */
1265
1266 /* Used in MOVI and SHORI (x & 65536). */
1267 HOWTO (R_SH_GOTOFF_LOW16, /* type */
1268 0, /* rightshift */
1269 2, /* size (0 = byte, 1 = short, 2 = long) */
1270 64, /* bitsize */
1271 FALSE, /* pc_relative */
1272 10, /* bitpos */
1273 complain_overflow_dont, /* complain_on_overflow */
1274 bfd_elf_generic_reloc, /* special_function */
1275 "R_SH_GOTOFF_LOW16", /* name */
1276 FALSE, /* partial_inplace */
1277 0, /* src_mask */
1278 0x3fffc00, /* dst_mask */
1279 FALSE), /* pcrel_offset */
1280
1281 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1282 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */
1283 16, /* rightshift */
1284 2, /* size (0 = byte, 1 = short, 2 = long) */
1285 64, /* bitsize */
1286 FALSE, /* pc_relative */
1287 10, /* bitpos */
1288 complain_overflow_dont, /* complain_on_overflow */
1289 bfd_elf_generic_reloc, /* special_function */
1290 "R_SH_GOTOFF_MEDLOW16", /* name */
1291 FALSE, /* partial_inplace */
1292 0, /* src_mask */
1293 0x3fffc00, /* dst_mask */
1294 FALSE), /* pcrel_offset */
1295
1296 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1297 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */
1298 32, /* rightshift */
1299 2, /* size (0 = byte, 1 = short, 2 = long) */
1300 64, /* bitsize */
1301 FALSE, /* pc_relative */
1302 10, /* bitpos */
1303 complain_overflow_dont, /* complain_on_overflow */
1304 bfd_elf_generic_reloc, /* special_function */
1305 "R_SH_GOTOFF_MEDHI16", /* name */
1306 FALSE, /* partial_inplace */
1307 0, /* src_mask */
1308 0x3fffc00, /* dst_mask */
1309 FALSE), /* pcrel_offset */
1310
1311 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1312 HOWTO (R_SH_GOTOFF_HI16, /* type */
1313 48, /* rightshift */
1314 2, /* size (0 = byte, 1 = short, 2 = long) */
1315 64, /* bitsize */
1316 FALSE, /* pc_relative */
1317 10, /* bitpos */
1318 complain_overflow_dont, /* complain_on_overflow */
1319 bfd_elf_generic_reloc, /* special_function */
1320 "R_SH_GOTOFF_HI16", /* name */
1321 FALSE, /* partial_inplace */
1322 0, /* src_mask */
1323 0x3fffc00, /* dst_mask */
1324 FALSE), /* pcrel_offset */
1325
1326 /* Used in MOVI and SHORI (x & 65536). */
1327 HOWTO (R_SH_GOTPC_LOW16, /* type */
1328 0, /* rightshift */
1329 2, /* size (0 = byte, 1 = short, 2 = long) */
1330 64, /* bitsize */
1331 TRUE, /* pc_relative */
1332 10, /* bitpos */
1333 complain_overflow_dont, /* complain_on_overflow */
1334 bfd_elf_generic_reloc, /* special_function */
1335 "R_SH_GOTPC_LOW16", /* name */
1336 FALSE, /* partial_inplace */
1337 0, /* src_mask */
1338 0x3fffc00, /* dst_mask */
1339 TRUE), /* pcrel_offset */
1340
1341 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1342 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */
1343 16, /* rightshift */
1344 2, /* size (0 = byte, 1 = short, 2 = long) */
1345 64, /* bitsize */
1346 TRUE, /* pc_relative */
1347 10, /* bitpos */
1348 complain_overflow_dont, /* complain_on_overflow */
1349 bfd_elf_generic_reloc, /* special_function */
1350 "R_SH_GOTPC_MEDLOW16", /* name */
1351 FALSE, /* partial_inplace */
1352 0, /* src_mask */
1353 0x3fffc00, /* dst_mask */
1354 TRUE), /* pcrel_offset */
1355
1356 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1357 HOWTO (R_SH_GOTPC_MEDHI16, /* type */
1358 32, /* rightshift */
1359 2, /* size (0 = byte, 1 = short, 2 = long) */
1360 64, /* bitsize */
1361 TRUE, /* pc_relative */
1362 10, /* bitpos */
1363 complain_overflow_dont, /* complain_on_overflow */
1364 bfd_elf_generic_reloc, /* special_function */
1365 "R_SH_GOTPC_MEDHI16", /* name */
1366 FALSE, /* partial_inplace */
1367 0, /* src_mask */
1368 0x3fffc00, /* dst_mask */
1369 TRUE), /* pcrel_offset */
1370
1371 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1372 HOWTO (R_SH_GOTPC_HI16, /* type */
1373 48, /* rightshift */
1374 2, /* size (0 = byte, 1 = short, 2 = long) */
1375 64, /* bitsize */
1376 TRUE, /* pc_relative */
1377 10, /* bitpos */
1378 complain_overflow_dont, /* complain_on_overflow */
1379 bfd_elf_generic_reloc, /* special_function */
1380 "R_SH_GOTPC_HI16", /* name */
1381 FALSE, /* partial_inplace */
1382 0, /* src_mask */
1383 0x3fffc00, /* dst_mask */
1384 TRUE), /* pcrel_offset */
1385
1386 /* Used in LD.L, FLD.S et al. */
1387 HOWTO (R_SH_GOT10BY4, /* type */
1388 2, /* rightshift */
1389 2, /* size (0 = byte, 1 = short, 2 = long) */
1390 12, /* bitsize */
1391 FALSE, /* pc_relative */
1392 10, /* bitpos */
1393 complain_overflow_signed, /* complain_on_overflow */
1394 bfd_elf_generic_reloc, /* special_function */
1395 "R_SH_GOT10BY4", /* name */
1396 FALSE, /* partial_inplace */
1397 0, /* src_mask */
1398 0xffc00, /* dst_mask */
1399 FALSE), /* pcrel_offset */
1400
1401 /* Used in LD.L, FLD.S et al. */
1402 HOWTO (R_SH_GOTPLT10BY4, /* type */
1403 2, /* rightshift */
1404 2, /* size (0 = byte, 1 = short, 2 = long) */
1405 12, /* bitsize */
1406 FALSE, /* pc_relative */
1407 10, /* bitpos */
1408 complain_overflow_signed, /* complain_on_overflow */
1409 bfd_elf_generic_reloc, /* special_function */
1410 "R_SH_GOTPLT10BY4", /* name */
1411 FALSE, /* partial_inplace */
1412 0, /* src_mask */
1413 0xffc00, /* dst_mask */
1414 FALSE), /* pcrel_offset */
1415
1416 /* Used in FLD.D, FST.P et al. */
1417 HOWTO (R_SH_GOT10BY8, /* type */
1418 3, /* rightshift */
1419 2, /* size (0 = byte, 1 = short, 2 = long) */
1420 13, /* bitsize */
1421 FALSE, /* pc_relative */
1422 10, /* bitpos */
1423 complain_overflow_signed, /* complain_on_overflow */
1424 bfd_elf_generic_reloc, /* special_function */
1425 "R_SH_GOT10BY8", /* name */
1426 FALSE, /* partial_inplace */
1427 0, /* src_mask */
1428 0xffc00, /* dst_mask */
1429 FALSE), /* pcrel_offset */
1430
1431 /* Used in FLD.D, FST.P et al. */
1432 HOWTO (R_SH_GOTPLT10BY8, /* type */
1433 3, /* rightshift */
1434 2, /* size (0 = byte, 1 = short, 2 = long) */
1435 13, /* bitsize */
1436 FALSE, /* pc_relative */
1437 10, /* bitpos */
1438 complain_overflow_signed, /* complain_on_overflow */
1439 bfd_elf_generic_reloc, /* special_function */
1440 "R_SH_GOTPLT10BY8", /* name */
1441 FALSE, /* partial_inplace */
1442 0, /* src_mask */
1443 0xffc00, /* dst_mask */
1444 FALSE), /* pcrel_offset */
1445
1446 HOWTO (R_SH_COPY64, /* type */
1447 0, /* rightshift */
1448 4, /* size (0 = byte, 1 = short, 2 = long) */
1449 64, /* bitsize */
1450 FALSE, /* pc_relative */
1451 0, /* bitpos */
1452 complain_overflow_dont, /* complain_on_overflow */
1453 bfd_elf_generic_reloc, /* special_function */
1454 "R_SH_COPY64", /* name */
1455 FALSE, /* partial_inplace */
1456 0, /* src_mask */
1457 ((bfd_vma) 0) - 1, /* dst_mask */
1458 FALSE), /* pcrel_offset */
1459
1460 HOWTO (R_SH_GLOB_DAT64, /* type */
1461 0, /* rightshift */
1462 4, /* size (0 = byte, 1 = short, 2 = long) */
1463 64, /* bitsize */
1464 FALSE, /* pc_relative */
1465 0, /* bitpos */
1466 complain_overflow_dont, /* complain_on_overflow */
1467 bfd_elf_generic_reloc, /* special_function */
1468 "R_SH_GLOB_DAT64", /* name */
1469 FALSE, /* partial_inplace */
1470 0, /* src_mask */
1471 ((bfd_vma) 0) - 1, /* dst_mask */
1472 FALSE), /* pcrel_offset */
1473
1474 HOWTO (R_SH_JMP_SLOT64, /* type */
1475 0, /* rightshift */
1476 4, /* size (0 = byte, 1 = short, 2 = long) */
1477 64, /* bitsize */
1478 FALSE, /* pc_relative */
1479 0, /* bitpos */
1480 complain_overflow_dont, /* complain_on_overflow */
1481 bfd_elf_generic_reloc, /* special_function */
1482 "R_SH_JMP_SLOT64", /* name */
1483 FALSE, /* partial_inplace */
1484 0, /* src_mask */
1485 ((bfd_vma) 0) - 1, /* dst_mask */
1486 FALSE), /* pcrel_offset */
1487
1488 HOWTO (R_SH_RELATIVE64, /* type */
1489 0, /* rightshift */
1490 4, /* size (0 = byte, 1 = short, 2 = long) */
1491 64, /* bitsize */
1492 FALSE, /* pc_relative */
1493 0, /* bitpos */
1494 complain_overflow_dont, /* complain_on_overflow */
1495 bfd_elf_generic_reloc, /* special_function */
1496 "R_SH_RELATIVE64", /* name */
1497 FALSE, /* partial_inplace */
1498 0, /* src_mask */
1499 ((bfd_vma) 0) - 1, /* dst_mask */
1500 FALSE), /* pcrel_offset */
1501
1502 EMPTY_HOWTO (197),
1503 EMPTY_HOWTO (198),
1504 EMPTY_HOWTO (199),
1505 EMPTY_HOWTO (200),
1506 EMPTY_HOWTO (201),
1507 EMPTY_HOWTO (202),
1508 EMPTY_HOWTO (203),
1509 EMPTY_HOWTO (204),
1510 EMPTY_HOWTO (205),
1511 EMPTY_HOWTO (206),
1512 EMPTY_HOWTO (207),
1513 EMPTY_HOWTO (208),
1514 EMPTY_HOWTO (209),
1515 EMPTY_HOWTO (210),
1516 EMPTY_HOWTO (211),
1517 EMPTY_HOWTO (212),
1518 EMPTY_HOWTO (213),
1519 EMPTY_HOWTO (214),
1520 EMPTY_HOWTO (215),
1521 EMPTY_HOWTO (216),
1522 EMPTY_HOWTO (217),
1523 EMPTY_HOWTO (218),
1524 EMPTY_HOWTO (219),
1525 EMPTY_HOWTO (220),
1526 EMPTY_HOWTO (221),
1527 EMPTY_HOWTO (222),
1528 EMPTY_HOWTO (223),
1529 EMPTY_HOWTO (224),
1530 EMPTY_HOWTO (225),
1531 EMPTY_HOWTO (226),
1532 EMPTY_HOWTO (227),
1533 EMPTY_HOWTO (228),
1534 EMPTY_HOWTO (229),
1535 EMPTY_HOWTO (230),
1536 EMPTY_HOWTO (231),
1537 EMPTY_HOWTO (232),
1538 EMPTY_HOWTO (233),
1539 EMPTY_HOWTO (234),
1540 EMPTY_HOWTO (235),
1541 EMPTY_HOWTO (236),
1542 EMPTY_HOWTO (237),
1543 EMPTY_HOWTO (238),
1544 EMPTY_HOWTO (239),
1545 EMPTY_HOWTO (240),
1546 EMPTY_HOWTO (241),
1547
1548 /* Relocations for SHmedia code. None of these are partial_inplace or
1549 use the field being relocated (except R_SH_PT_16). */
1550
1551 /* The assembler will generate this reloc before a block of SHmedia
1552 instructions. A section should be processed as assuming it contains
1553 data, unless this reloc is seen. Note that a block of SHcompact
1554 instructions are instead preceded by R_SH_CODE.
1555 This is currently not implemented, but should be used for SHmedia
1556 linker relaxation. */
1557 HOWTO (R_SH_SHMEDIA_CODE, /* type */
1558 0, /* rightshift */
1559 1, /* size (0 = byte, 1 = short, 2 = long) */
1560 0, /* bitsize */
1561 FALSE, /* pc_relative */
1562 0, /* bitpos */
1563 complain_overflow_unsigned, /* complain_on_overflow */
1564 sh_elf_ignore_reloc, /* special_function */
1565 "R_SH_SHMEDIA_CODE", /* name */
1566 FALSE, /* partial_inplace */
1567 0, /* src_mask */
1568 0, /* dst_mask */
1569 FALSE), /* pcrel_offset */
1570
1571 /* The assembler will generate this reloc at a PTA or PTB instruction,
1572 and the linker checks the right type of target, or changes a PTA to a
1573 PTB, if the original insn was PT. */
1574 HOWTO (R_SH_PT_16, /* type */
1575 2, /* rightshift */
1576 2, /* size (0 = byte, 1 = short, 2 = long) */
1577 18, /* bitsize */
1578 TRUE, /* pc_relative */
1579 10, /* bitpos */
1580 complain_overflow_signed, /* complain_on_overflow */
1581 bfd_elf_generic_reloc, /* special_function */
1582 "R_SH_PT_16", /* name */
1583 FALSE, /* partial_inplace */
1584 0, /* src_mask */
1585 0x3fffc00, /* dst_mask */
1586 TRUE), /* pcrel_offset */
1587
1588 /* Used in unexpanded MOVI. */
1589 HOWTO (R_SH_IMMS16, /* type */
1590 0, /* rightshift */
1591 2, /* size (0 = byte, 1 = short, 2 = long) */
1592 16, /* bitsize */
1593 FALSE, /* pc_relative */
1594 10, /* bitpos */
1595 complain_overflow_signed, /* complain_on_overflow */
1596 bfd_elf_generic_reloc, /* special_function */
1597 "R_SH_IMMS16", /* name */
1598 FALSE, /* partial_inplace */
1599 0, /* src_mask */
1600 0x3fffc00, /* dst_mask */
1601 FALSE), /* pcrel_offset */
1602
1603 /* Used in SHORI. */
1604 HOWTO (R_SH_IMMU16, /* type */
1605 0, /* rightshift */
1606 2, /* size (0 = byte, 1 = short, 2 = long) */
1607 16, /* bitsize */
1608 FALSE, /* pc_relative */
1609 10, /* bitpos */
1610 complain_overflow_unsigned, /* complain_on_overflow */
1611 bfd_elf_generic_reloc, /* special_function */
1612 "R_SH_IMMU16", /* name */
1613 FALSE, /* partial_inplace */
1614 0, /* src_mask */
1615 0x3fffc00, /* dst_mask */
1616 FALSE), /* pcrel_offset */
1617
1618 /* Used in MOVI and SHORI (x & 65536). */
1619 HOWTO (R_SH_IMM_LOW16, /* type */
1620 0, /* rightshift */
1621 2, /* size (0 = byte, 1 = short, 2 = long) */
1622 64, /* bitsize */
1623 FALSE, /* pc_relative */
1624 10, /* bitpos */
1625 complain_overflow_dont, /* complain_on_overflow */
1626 bfd_elf_generic_reloc, /* special_function */
1627 "R_SH_IMM_LOW16", /* name */
1628 FALSE, /* partial_inplace */
1629 0, /* src_mask */
1630 0x3fffc00, /* dst_mask */
1631 FALSE), /* pcrel_offset */
1632
1633 /* Used in MOVI and SHORI ((x - $) & 65536). */
1634 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */
1635 0, /* rightshift */
1636 2, /* size (0 = byte, 1 = short, 2 = long) */
1637 64, /* bitsize */
1638 TRUE, /* pc_relative */
1639 10, /* bitpos */
1640 complain_overflow_dont, /* complain_on_overflow */
1641 bfd_elf_generic_reloc, /* special_function */
1642 "R_SH_IMM_LOW16_PCREL", /* name */
1643 FALSE, /* partial_inplace */
1644 0, /* src_mask */
1645 0x3fffc00, /* dst_mask */
1646 TRUE), /* pcrel_offset */
1647
1648 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1649 HOWTO (R_SH_IMM_MEDLOW16, /* type */
1650 16, /* rightshift */
1651 2, /* size (0 = byte, 1 = short, 2 = long) */
1652 64, /* bitsize */
1653 FALSE, /* pc_relative */
1654 10, /* bitpos */
1655 complain_overflow_dont, /* complain_on_overflow */
1656 bfd_elf_generic_reloc, /* special_function */
1657 "R_SH_IMM_MEDLOW16", /* name */
1658 FALSE, /* partial_inplace */
1659 0, /* src_mask */
1660 0x3fffc00, /* dst_mask */
1661 FALSE), /* pcrel_offset */
1662
1663 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
1664 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
1665 16, /* rightshift */
1666 2, /* size (0 = byte, 1 = short, 2 = long) */
1667 64, /* bitsize */
1668 TRUE, /* pc_relative */
1669 10, /* bitpos */
1670 complain_overflow_dont, /* complain_on_overflow */
1671 bfd_elf_generic_reloc, /* special_function */
1672 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1673 FALSE, /* partial_inplace */
1674 0, /* src_mask */
1675 0x3fffc00, /* dst_mask */
1676 TRUE), /* pcrel_offset */
1677
1678 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1679 HOWTO (R_SH_IMM_MEDHI16, /* type */
1680 32, /* rightshift */
1681 2, /* size (0 = byte, 1 = short, 2 = long) */
1682 64, /* bitsize */
1683 FALSE, /* pc_relative */
1684 10, /* bitpos */
1685 complain_overflow_dont, /* complain_on_overflow */
1686 bfd_elf_generic_reloc, /* special_function */
1687 "R_SH_IMM_MEDHI16", /* name */
1688 FALSE, /* partial_inplace */
1689 0, /* src_mask */
1690 0x3fffc00, /* dst_mask */
1691 FALSE), /* pcrel_offset */
1692
1693 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
1694 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
1695 32, /* rightshift */
1696 2, /* size (0 = byte, 1 = short, 2 = long) */
1697 64, /* bitsize */
1698 TRUE, /* pc_relative */
1699 10, /* bitpos */
1700 complain_overflow_dont, /* complain_on_overflow */
1701 bfd_elf_generic_reloc, /* special_function */
1702 "R_SH_IMM_MEDHI16_PCREL", /* name */
1703 FALSE, /* partial_inplace */
1704 0, /* src_mask */
1705 0x3fffc00, /* dst_mask */
1706 TRUE), /* pcrel_offset */
1707
1708 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1709 HOWTO (R_SH_IMM_HI16, /* type */
1710 48, /* rightshift */
1711 2, /* size (0 = byte, 1 = short, 2 = long) */
1712 64, /* bitsize */
1713 FALSE, /* pc_relative */
1714 10, /* bitpos */
1715 complain_overflow_dont, /* complain_on_overflow */
1716 bfd_elf_generic_reloc, /* special_function */
1717 "R_SH_IMM_HI16", /* name */
1718 FALSE, /* partial_inplace */
1719 0, /* src_mask */
1720 0x3fffc00, /* dst_mask */
1721 FALSE), /* pcrel_offset */
1722
1723 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
1724 HOWTO (R_SH_IMM_HI16_PCREL, /* type */
1725 48, /* rightshift */
1726 2, /* size (0 = byte, 1 = short, 2 = long) */
1727 64, /* bitsize */
1728 TRUE, /* pc_relative */
1729 10, /* bitpos */
1730 complain_overflow_dont, /* complain_on_overflow */
1731 bfd_elf_generic_reloc, /* special_function */
1732 "R_SH_IMM_HI16_PCREL", /* name */
1733 FALSE, /* partial_inplace */
1734 0, /* src_mask */
1735 0x3fffc00, /* dst_mask */
1736 TRUE), /* pcrel_offset */
1737
1738 /* For the .uaquad pseudo. */
1739 HOWTO (R_SH_64, /* type */
1740 0, /* rightshift */
1741 4, /* size (0 = byte, 1 = short, 2 = long) */
1742 64, /* bitsize */
1743 FALSE, /* pc_relative */
1744 0, /* bitpos */
1745 complain_overflow_dont, /* complain_on_overflow */
1746 bfd_elf_generic_reloc, /* special_function */
1747 "R_SH_64", /* name */
1748 FALSE, /* partial_inplace */
1749 0, /* src_mask */
1750 ((bfd_vma) 0) - 1, /* dst_mask */
1751 FALSE), /* pcrel_offset */
1752
1753 /* For the .uaquad pseudo, (x - $). */
1754 HOWTO (R_SH_64_PCREL, /* type */
1755 48, /* rightshift */
1756 2, /* size (0 = byte, 1 = short, 2 = long) */
1757 64, /* bitsize */
1758 TRUE, /* pc_relative */
1759 10, /* bitpos */
1760 complain_overflow_dont, /* complain_on_overflow */
1761 bfd_elf_generic_reloc, /* special_function */
1762 "R_SH_64_PCREL", /* name */
1763 FALSE, /* partial_inplace */
1764 0, /* src_mask */
1765 ((bfd_vma) 0) - 1, /* dst_mask */
1766 TRUE), /* pcrel_offset */
1767
1768 #endif
1769 };
1770
1771 static bfd_reloc_status_type
sh_elf_reloc_loop(int r_type ATTRIBUTE_UNUSED,bfd * input_bfd,asection * input_section,bfd_byte * contents,bfd_vma addr,asection * symbol_section,bfd_vma start,bfd_vma end)1772 sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED, bfd *input_bfd,
1773 asection *input_section, bfd_byte *contents,
1774 bfd_vma addr, asection *symbol_section,
1775 bfd_vma start, bfd_vma end)
1776 {
1777 static bfd_vma last_addr;
1778 static asection *last_symbol_section;
1779 bfd_byte *start_ptr, *ptr, *last_ptr;
1780 int diff, cum_diff;
1781 bfd_signed_vma x;
1782 int insn;
1783
1784 /* Sanity check the address. */
1785 if (addr > bfd_get_section_limit (input_bfd, input_section))
1786 return bfd_reloc_outofrange;
1787
1788 /* We require the start and end relocations to be processed consecutively -
1789 although we allow then to be processed forwards or backwards. */
1790 if (! last_addr)
1791 {
1792 last_addr = addr;
1793 last_symbol_section = symbol_section;
1794 return bfd_reloc_ok;
1795 }
1796 if (last_addr != addr)
1797 abort ();
1798 last_addr = 0;
1799
1800 if (! symbol_section || last_symbol_section != symbol_section || end < start)
1801 return bfd_reloc_outofrange;
1802
1803 /* Get the symbol_section contents. */
1804 if (symbol_section != input_section)
1805 {
1806 if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
1807 contents = elf_section_data (symbol_section)->this_hdr.contents;
1808 else
1809 {
1810 if (!bfd_malloc_and_get_section (input_bfd, symbol_section,
1811 &contents))
1812 {
1813 if (contents != NULL)
1814 free (contents);
1815 return bfd_reloc_outofrange;
1816 }
1817 }
1818 }
1819 #define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
1820 start_ptr = contents + start;
1821 for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
1822 {
1823 for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
1824 ptr -= 2;
1825 ptr += 2;
1826 diff = (last_ptr - ptr) >> 1;
1827 cum_diff += diff & 1;
1828 cum_diff += diff;
1829 }
1830 /* Calculate the start / end values to load into rs / re minus four -
1831 so that will cancel out the four we would otherwise have to add to
1832 addr to get the value to subtract in order to get relative addressing. */
1833 if (cum_diff >= 0)
1834 {
1835 start -= 4;
1836 end = (ptr + cum_diff * 2) - contents;
1837 }
1838 else
1839 {
1840 bfd_vma start0 = start - 4;
1841
1842 while (start0 && IS_PPI (contents + start0))
1843 start0 -= 2;
1844 start0 = start - 2 - ((start - start0) & 2);
1845 start = start0 - cum_diff - 2;
1846 end = start0;
1847 }
1848
1849 if (contents != NULL
1850 && elf_section_data (symbol_section)->this_hdr.contents != contents)
1851 free (contents);
1852
1853 insn = bfd_get_16 (input_bfd, contents + addr);
1854
1855 x = (insn & 0x200 ? end : start) - addr;
1856 if (input_section != symbol_section)
1857 x += ((symbol_section->output_section->vma + symbol_section->output_offset)
1858 - (input_section->output_section->vma
1859 + input_section->output_offset));
1860 x >>= 1;
1861 if (x < -128 || x > 127)
1862 return bfd_reloc_overflow;
1863
1864 x = (insn & ~0xff) | (x & 0xff);
1865 bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
1866
1867 return bfd_reloc_ok;
1868 }
1869
1870 /* This function is used for normal relocs. This used to be like the COFF
1871 function, and is almost certainly incorrect for other ELF targets. */
1872
1873 static bfd_reloc_status_type
sh_elf_reloc(bfd * abfd,arelent * reloc_entry,asymbol * symbol_in,void * data,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)1874 sh_elf_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
1875 void *data, asection *input_section, bfd *output_bfd,
1876 char **error_message ATTRIBUTE_UNUSED)
1877 {
1878 unsigned long insn;
1879 bfd_vma sym_value;
1880 enum elf_sh_reloc_type r_type;
1881 bfd_vma addr = reloc_entry->address;
1882 bfd_byte *hit_data = addr + (bfd_byte *) data;
1883
1884 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
1885
1886 if (output_bfd != NULL)
1887 {
1888 /* Partial linking--do nothing. */
1889 reloc_entry->address += input_section->output_offset;
1890 return bfd_reloc_ok;
1891 }
1892
1893 /* Almost all relocs have to do with relaxing. If any work must be
1894 done for them, it has been done in sh_relax_section. */
1895 if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
1896 return bfd_reloc_ok;
1897
1898 if (symbol_in != NULL
1899 && bfd_is_und_section (symbol_in->section))
1900 return bfd_reloc_undefined;
1901
1902 if (bfd_is_com_section (symbol_in->section))
1903 sym_value = 0;
1904 else
1905 sym_value = (symbol_in->value +
1906 symbol_in->section->output_section->vma +
1907 symbol_in->section->output_offset);
1908
1909 switch (r_type)
1910 {
1911 case R_SH_DIR32:
1912 insn = bfd_get_32 (abfd, hit_data);
1913 insn += sym_value + reloc_entry->addend;
1914 bfd_put_32 (abfd, (bfd_vma) insn, hit_data);
1915 break;
1916 case R_SH_IND12W:
1917 insn = bfd_get_16 (abfd, hit_data);
1918 sym_value += reloc_entry->addend;
1919 sym_value -= (input_section->output_section->vma
1920 + input_section->output_offset
1921 + addr
1922 + 4);
1923 sym_value += (insn & 0xfff) << 1;
1924 if (insn & 0x800)
1925 sym_value -= 0x1000;
1926 insn = (insn & 0xf000) | (sym_value & 0xfff);
1927 bfd_put_16 (abfd, (bfd_vma) insn, hit_data);
1928 if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000)
1929 return bfd_reloc_overflow;
1930 break;
1931 default:
1932 abort ();
1933 break;
1934 }
1935
1936 return bfd_reloc_ok;
1937 }
1938
1939 /* This function is used for relocs which are only used for relaxing,
1940 which the linker should otherwise ignore. */
1941
1942 static bfd_reloc_status_type
sh_elf_ignore_reloc(bfd * abfd ATTRIBUTE_UNUSED,arelent * reloc_entry,asymbol * symbol ATTRIBUTE_UNUSED,void * data ATTRIBUTE_UNUSED,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)1943 sh_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
1944 asymbol *symbol ATTRIBUTE_UNUSED,
1945 void *data ATTRIBUTE_UNUSED, asection *input_section,
1946 bfd *output_bfd,
1947 char **error_message ATTRIBUTE_UNUSED)
1948 {
1949 if (output_bfd != NULL)
1950 reloc_entry->address += input_section->output_offset;
1951 return bfd_reloc_ok;
1952 }
1953
1954 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
1955
1956 struct elf_reloc_map
1957 {
1958 bfd_reloc_code_real_type bfd_reloc_val;
1959 unsigned char elf_reloc_val;
1960 };
1961
1962 /* An array mapping BFD reloc codes to SH ELF relocs. */
1963
1964 static const struct elf_reloc_map sh_reloc_map[] =
1965 {
1966 { BFD_RELOC_NONE, R_SH_NONE },
1967 { BFD_RELOC_32, R_SH_DIR32 },
1968 { BFD_RELOC_16, R_SH_DIR16 },
1969 { BFD_RELOC_8, R_SH_DIR8 },
1970 { BFD_RELOC_CTOR, R_SH_DIR32 },
1971 { BFD_RELOC_32_PCREL, R_SH_REL32 },
1972 { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
1973 { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
1974 { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
1975 { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
1976 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
1977 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
1978 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
1979 { BFD_RELOC_SH_USES, R_SH_USES },
1980 { BFD_RELOC_SH_COUNT, R_SH_COUNT },
1981 { BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
1982 { BFD_RELOC_SH_CODE, R_SH_CODE },
1983 { BFD_RELOC_SH_DATA, R_SH_DATA },
1984 { BFD_RELOC_SH_LABEL, R_SH_LABEL },
1985 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
1986 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
1987 { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
1988 { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
1989 { BFD_RELOC_SH_TLS_GD_32, R_SH_TLS_GD_32 },
1990 { BFD_RELOC_SH_TLS_LD_32, R_SH_TLS_LD_32 },
1991 { BFD_RELOC_SH_TLS_LDO_32, R_SH_TLS_LDO_32 },
1992 { BFD_RELOC_SH_TLS_IE_32, R_SH_TLS_IE_32 },
1993 { BFD_RELOC_SH_TLS_LE_32, R_SH_TLS_LE_32 },
1994 { BFD_RELOC_SH_TLS_DTPMOD32, R_SH_TLS_DTPMOD32 },
1995 { BFD_RELOC_SH_TLS_DTPOFF32, R_SH_TLS_DTPOFF32 },
1996 { BFD_RELOC_SH_TLS_TPOFF32, R_SH_TLS_TPOFF32 },
1997 { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 },
1998 { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 },
1999 { BFD_RELOC_SH_COPY, R_SH_COPY },
2000 { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT },
2001 { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT },
2002 { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE },
2003 { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF },
2004 { BFD_RELOC_SH_GOTPC, R_SH_GOTPC },
2005 { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 },
2006 #ifdef INCLUDE_SHMEDIA
2007 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
2008 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
2009 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
2010 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
2011 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
2012 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
2013 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
2014 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
2015 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
2016 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
2017 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
2018 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
2019 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
2020 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
2021 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
2022 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
2023 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
2024 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
2025 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
2026 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
2027 { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
2028 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
2029 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
2030 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
2031 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
2032 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
2033 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
2034 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
2035 { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
2036 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
2037 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
2038 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
2039 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
2040 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
2041 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
2042 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
2043 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
2044 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
2045 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
2046 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
2047 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
2048 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
2049 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
2050 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
2051 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
2052 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
2053 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
2054 { BFD_RELOC_64, R_SH_64 },
2055 { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
2056 #endif /* not INCLUDE_SHMEDIA */
2057 };
2058
2059 /* Given a BFD reloc code, return the howto structure for the
2060 corresponding SH ELf reloc. */
2061
2062 static reloc_howto_type *
sh_elf_reloc_type_lookup(bfd * abfd ATTRIBUTE_UNUSED,bfd_reloc_code_real_type code)2063 sh_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2064 bfd_reloc_code_real_type code)
2065 {
2066 unsigned int i;
2067
2068 for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
2069 {
2070 if (sh_reloc_map[i].bfd_reloc_val == code)
2071 return &sh_elf_howto_table[(int) sh_reloc_map[i].elf_reloc_val];
2072 }
2073
2074 return NULL;
2075 }
2076
2077 /* Given an ELF reloc, fill in the howto field of a relent. */
2078
2079 static void
sh_elf_info_to_howto(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)2080 sh_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2081 Elf_Internal_Rela *dst)
2082 {
2083 unsigned int r;
2084
2085 r = ELF32_R_TYPE (dst->r_info);
2086
2087 BFD_ASSERT (r < (unsigned int) R_SH_max);
2088 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
2089 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_2 || r > R_SH_LAST_INVALID_RELOC_2);
2090 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_LAST_INVALID_RELOC_3);
2091 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
2092 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_5 || r > R_SH_LAST_INVALID_RELOC_5);
2093
2094 cache_ptr->howto = &sh_elf_howto_table[r];
2095 }
2096
2097 /* This function handles relaxing for SH ELF. See the corresponding
2098 function in coff-sh.c for a description of what this does. FIXME:
2099 There is a lot of duplication here between this code and the COFF
2100 specific code. The format of relocs and symbols is wound deeply
2101 into this code, but it would still be better if the duplication
2102 could be eliminated somehow. Note in particular that although both
2103 functions use symbols like R_SH_CODE, those symbols have different
2104 values; in coff-sh.c they come from include/coff/sh.h, whereas here
2105 they come from enum elf_sh_reloc_type in include/elf/sh.h. */
2106
2107 static bfd_boolean
sh_elf_relax_section(bfd * abfd,asection * sec,struct bfd_link_info * link_info,bfd_boolean * again)2108 sh_elf_relax_section (bfd *abfd, asection *sec,
2109 struct bfd_link_info *link_info, bfd_boolean *again)
2110 {
2111 Elf_Internal_Shdr *symtab_hdr;
2112 Elf_Internal_Rela *internal_relocs;
2113 bfd_boolean have_code;
2114 Elf_Internal_Rela *irel, *irelend;
2115 bfd_byte *contents = NULL;
2116 Elf_Internal_Sym *isymbuf = NULL;
2117
2118 *again = FALSE;
2119
2120 if (link_info->relocatable
2121 || (sec->flags & SEC_RELOC) == 0
2122 || sec->reloc_count == 0)
2123 return TRUE;
2124
2125 #ifdef INCLUDE_SHMEDIA
2126 if (elf_section_data (sec)->this_hdr.sh_flags
2127 & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED))
2128 {
2129 return TRUE;
2130 }
2131 #endif
2132
2133 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2134
2135 internal_relocs = (_bfd_elf_link_read_relocs
2136 (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
2137 link_info->keep_memory));
2138 if (internal_relocs == NULL)
2139 goto error_return;
2140
2141 have_code = FALSE;
2142
2143 irelend = internal_relocs + sec->reloc_count;
2144 for (irel = internal_relocs; irel < irelend; irel++)
2145 {
2146 bfd_vma laddr, paddr, symval;
2147 unsigned short insn;
2148 Elf_Internal_Rela *irelfn, *irelscan, *irelcount;
2149 bfd_signed_vma foff;
2150
2151 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
2152 have_code = TRUE;
2153
2154 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
2155 continue;
2156
2157 /* Get the section contents. */
2158 if (contents == NULL)
2159 {
2160 if (elf_section_data (sec)->this_hdr.contents != NULL)
2161 contents = elf_section_data (sec)->this_hdr.contents;
2162 else
2163 {
2164 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
2165 goto error_return;
2166 }
2167 }
2168
2169 /* The r_addend field of the R_SH_USES reloc will point us to
2170 the register load. The 4 is because the r_addend field is
2171 computed as though it were a jump offset, which are based
2172 from 4 bytes after the jump instruction. */
2173 laddr = irel->r_offset + 4 + irel->r_addend;
2174 if (laddr >= sec->size)
2175 {
2176 (*_bfd_error_handler) (_("%B: 0x%lx: warning: bad R_SH_USES offset"),
2177 abfd,
2178 (unsigned long) irel->r_offset);
2179 continue;
2180 }
2181 insn = bfd_get_16 (abfd, contents + laddr);
2182
2183 /* If the instruction is not mov.l NN,rN, we don't know what to
2184 do. */
2185 if ((insn & 0xf000) != 0xd000)
2186 {
2187 ((*_bfd_error_handler)
2188 (_("%B: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
2189 abfd, (unsigned long) irel->r_offset, insn));
2190 continue;
2191 }
2192
2193 /* Get the address from which the register is being loaded. The
2194 displacement in the mov.l instruction is quadrupled. It is a
2195 displacement from four bytes after the movl instruction, but,
2196 before adding in the PC address, two least significant bits
2197 of the PC are cleared. We assume that the section is aligned
2198 on a four byte boundary. */
2199 paddr = insn & 0xff;
2200 paddr *= 4;
2201 paddr += (laddr + 4) &~ (bfd_vma) 3;
2202 if (paddr >= sec->size)
2203 {
2204 ((*_bfd_error_handler)
2205 (_("%B: 0x%lx: warning: bad R_SH_USES load offset"),
2206 abfd, (unsigned long) irel->r_offset));
2207 continue;
2208 }
2209
2210 /* Get the reloc for the address from which the register is
2211 being loaded. This reloc will tell us which function is
2212 actually being called. */
2213 for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
2214 if (irelfn->r_offset == paddr
2215 && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
2216 break;
2217 if (irelfn >= irelend)
2218 {
2219 ((*_bfd_error_handler)
2220 (_("%B: 0x%lx: warning: could not find expected reloc"),
2221 abfd, (unsigned long) paddr));
2222 continue;
2223 }
2224
2225 /* Read this BFD's symbols if we haven't done so already. */
2226 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
2227 {
2228 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2229 if (isymbuf == NULL)
2230 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
2231 symtab_hdr->sh_info, 0,
2232 NULL, NULL, NULL);
2233 if (isymbuf == NULL)
2234 goto error_return;
2235 }
2236
2237 /* Get the value of the symbol referred to by the reloc. */
2238 if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
2239 {
2240 /* A local symbol. */
2241 Elf_Internal_Sym *isym;
2242
2243 isym = isymbuf + ELF32_R_SYM (irelfn->r_info);
2244 if (isym->st_shndx
2245 != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec))
2246 {
2247 ((*_bfd_error_handler)
2248 (_("%B: 0x%lx: warning: symbol in unexpected section"),
2249 abfd, (unsigned long) paddr));
2250 continue;
2251 }
2252
2253 symval = (isym->st_value
2254 + sec->output_section->vma
2255 + sec->output_offset);
2256 }
2257 else
2258 {
2259 unsigned long indx;
2260 struct elf_link_hash_entry *h;
2261
2262 indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
2263 h = elf_sym_hashes (abfd)[indx];
2264 BFD_ASSERT (h != NULL);
2265 if (h->root.type != bfd_link_hash_defined
2266 && h->root.type != bfd_link_hash_defweak)
2267 {
2268 /* This appears to be a reference to an undefined
2269 symbol. Just ignore it--it will be caught by the
2270 regular reloc processing. */
2271 continue;
2272 }
2273
2274 symval = (h->root.u.def.value
2275 + h->root.u.def.section->output_section->vma
2276 + h->root.u.def.section->output_offset);
2277 }
2278
2279 symval += bfd_get_32 (abfd, contents + paddr);
2280
2281 /* See if this function call can be shortened. */
2282 foff = (symval
2283 - (irel->r_offset
2284 + sec->output_section->vma
2285 + sec->output_offset
2286 + 4));
2287 if (foff < -0x1000 || foff >= 0x1000)
2288 {
2289 /* After all that work, we can't shorten this function call. */
2290 continue;
2291 }
2292
2293 /* Shorten the function call. */
2294
2295 /* For simplicity of coding, we are going to modify the section
2296 contents, the section relocs, and the BFD symbol table. We
2297 must tell the rest of the code not to free up this
2298 information. It would be possible to instead create a table
2299 of changes which have to be made, as is done in coff-mips.c;
2300 that would be more work, but would require less memory when
2301 the linker is run. */
2302
2303 elf_section_data (sec)->relocs = internal_relocs;
2304 elf_section_data (sec)->this_hdr.contents = contents;
2305 symtab_hdr->contents = (unsigned char *) isymbuf;
2306
2307 /* Replace the jsr with a bsr. */
2308
2309 /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
2310 replace the jsr with a bsr. */
2311 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
2312 /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
2313 here, but that only checks if the symbol is an external symbol,
2314 not if the symbol is in a different section. Besides, we need
2315 a consistent meaning for the relocation, so we just assume here that
2316 the value of the symbol is not available. */
2317
2318 /* We can't fully resolve this yet, because the external
2319 symbol value may be changed by future relaxing. We let
2320 the final link phase handle it. */
2321 bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
2322
2323 irel->r_addend = -4;
2324
2325 /* See if there is another R_SH_USES reloc referring to the same
2326 register load. */
2327 for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
2328 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
2329 && laddr == irelscan->r_offset + 4 + irelscan->r_addend)
2330 break;
2331 if (irelscan < irelend)
2332 {
2333 /* Some other function call depends upon this register load,
2334 and we have not yet converted that function call.
2335 Indeed, we may never be able to convert it. There is
2336 nothing else we can do at this point. */
2337 continue;
2338 }
2339
2340 /* Look for a R_SH_COUNT reloc on the location where the
2341 function address is stored. Do this before deleting any
2342 bytes, to avoid confusion about the address. */
2343 for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
2344 if (irelcount->r_offset == paddr
2345 && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
2346 break;
2347
2348 /* Delete the register load. */
2349 if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
2350 goto error_return;
2351
2352 /* That will change things, so, just in case it permits some
2353 other function call to come within range, we should relax
2354 again. Note that this is not required, and it may be slow. */
2355 *again = TRUE;
2356
2357 /* Now check whether we got a COUNT reloc. */
2358 if (irelcount >= irelend)
2359 {
2360 ((*_bfd_error_handler)
2361 (_("%B: 0x%lx: warning: could not find expected COUNT reloc"),
2362 abfd, (unsigned long) paddr));
2363 continue;
2364 }
2365
2366 /* The number of uses is stored in the r_addend field. We've
2367 just deleted one. */
2368 if (irelcount->r_addend == 0)
2369 {
2370 ((*_bfd_error_handler) (_("%B: 0x%lx: warning: bad count"),
2371 abfd,
2372 (unsigned long) paddr));
2373 continue;
2374 }
2375
2376 --irelcount->r_addend;
2377
2378 /* If there are no more uses, we can delete the address. Reload
2379 the address from irelfn, in case it was changed by the
2380 previous call to sh_elf_relax_delete_bytes. */
2381 if (irelcount->r_addend == 0)
2382 {
2383 if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
2384 goto error_return;
2385 }
2386
2387 /* We've done all we can with that function call. */
2388 }
2389
2390 /* Look for load and store instructions that we can align on four
2391 byte boundaries. */
2392 if ((elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) != EF_SH4
2393 && have_code)
2394 {
2395 bfd_boolean swapped;
2396
2397 /* Get the section contents. */
2398 if (contents == NULL)
2399 {
2400 if (elf_section_data (sec)->this_hdr.contents != NULL)
2401 contents = elf_section_data (sec)->this_hdr.contents;
2402 else
2403 {
2404 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
2405 goto error_return;
2406 }
2407 }
2408
2409 if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
2410 &swapped))
2411 goto error_return;
2412
2413 if (swapped)
2414 {
2415 elf_section_data (sec)->relocs = internal_relocs;
2416 elf_section_data (sec)->this_hdr.contents = contents;
2417 symtab_hdr->contents = (unsigned char *) isymbuf;
2418 }
2419 }
2420
2421 if (isymbuf != NULL
2422 && symtab_hdr->contents != (unsigned char *) isymbuf)
2423 {
2424 if (! link_info->keep_memory)
2425 free (isymbuf);
2426 else
2427 {
2428 /* Cache the symbols for elf_link_input_bfd. */
2429 symtab_hdr->contents = (unsigned char *) isymbuf;
2430 }
2431 }
2432
2433 if (contents != NULL
2434 && elf_section_data (sec)->this_hdr.contents != contents)
2435 {
2436 if (! link_info->keep_memory)
2437 free (contents);
2438 else
2439 {
2440 /* Cache the section contents for elf_link_input_bfd. */
2441 elf_section_data (sec)->this_hdr.contents = contents;
2442 }
2443 }
2444
2445 if (internal_relocs != NULL
2446 && elf_section_data (sec)->relocs != internal_relocs)
2447 free (internal_relocs);
2448
2449 return TRUE;
2450
2451 error_return:
2452 if (isymbuf != NULL
2453 && symtab_hdr->contents != (unsigned char *) isymbuf)
2454 free (isymbuf);
2455 if (contents != NULL
2456 && elf_section_data (sec)->this_hdr.contents != contents)
2457 free (contents);
2458 if (internal_relocs != NULL
2459 && elf_section_data (sec)->relocs != internal_relocs)
2460 free (internal_relocs);
2461
2462 return FALSE;
2463 }
2464
2465 /* Delete some bytes from a section while relaxing. FIXME: There is a
2466 lot of duplication between this function and sh_relax_delete_bytes
2467 in coff-sh.c. */
2468
2469 static bfd_boolean
sh_elf_relax_delete_bytes(bfd * abfd,asection * sec,bfd_vma addr,int count)2470 sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr,
2471 int count)
2472 {
2473 Elf_Internal_Shdr *symtab_hdr;
2474 unsigned int sec_shndx;
2475 bfd_byte *contents;
2476 Elf_Internal_Rela *irel, *irelend;
2477 Elf_Internal_Rela *irelalign;
2478 bfd_vma toaddr;
2479 Elf_Internal_Sym *isymbuf, *isym, *isymend;
2480 struct elf_link_hash_entry **sym_hashes;
2481 struct elf_link_hash_entry **end_hashes;
2482 unsigned int symcount;
2483 asection *o;
2484
2485 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2486 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2487
2488 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
2489
2490 contents = elf_section_data (sec)->this_hdr.contents;
2491
2492 /* The deletion must stop at the next ALIGN reloc for an aligment
2493 power larger than the number of bytes we are deleting. */
2494
2495 irelalign = NULL;
2496 toaddr = sec->size;
2497
2498 irel = elf_section_data (sec)->relocs;
2499 irelend = irel + sec->reloc_count;
2500 for (; irel < irelend; irel++)
2501 {
2502 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
2503 && irel->r_offset > addr
2504 && count < (1 << irel->r_addend))
2505 {
2506 irelalign = irel;
2507 toaddr = irel->r_offset;
2508 break;
2509 }
2510 }
2511
2512 /* Actually delete the bytes. */
2513 memmove (contents + addr, contents + addr + count,
2514 (size_t) (toaddr - addr - count));
2515 if (irelalign == NULL)
2516 sec->size -= count;
2517 else
2518 {
2519 int i;
2520
2521 #define NOP_OPCODE (0x0009)
2522
2523 BFD_ASSERT ((count & 1) == 0);
2524 for (i = 0; i < count; i += 2)
2525 bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
2526 }
2527
2528 /* Adjust all the relocs. */
2529 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
2530 {
2531 bfd_vma nraddr, stop;
2532 bfd_vma start = 0;
2533 int insn = 0;
2534 int off, adjust, oinsn;
2535 bfd_signed_vma voff = 0;
2536 bfd_boolean overflow;
2537
2538 /* Get the new reloc address. */
2539 nraddr = irel->r_offset;
2540 if ((irel->r_offset > addr
2541 && irel->r_offset < toaddr)
2542 || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
2543 && irel->r_offset == toaddr))
2544 nraddr -= count;
2545
2546 /* See if this reloc was for the bytes we have deleted, in which
2547 case we no longer care about it. Don't delete relocs which
2548 represent addresses, though. */
2549 if (irel->r_offset >= addr
2550 && irel->r_offset < addr + count
2551 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
2552 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
2553 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
2554 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
2555 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2556 (int) R_SH_NONE);
2557
2558 /* If this is a PC relative reloc, see if the range it covers
2559 includes the bytes we have deleted. */
2560 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
2561 {
2562 default:
2563 break;
2564
2565 case R_SH_DIR8WPN:
2566 case R_SH_IND12W:
2567 case R_SH_DIR8WPZ:
2568 case R_SH_DIR8WPL:
2569 start = irel->r_offset;
2570 insn = bfd_get_16 (abfd, contents + nraddr);
2571 break;
2572 }
2573
2574 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
2575 {
2576 default:
2577 start = stop = addr;
2578 break;
2579
2580 case R_SH_DIR32:
2581 /* If this reloc is against a symbol defined in this
2582 section, and the symbol will not be adjusted below, we
2583 must check the addend to see it will put the value in
2584 range to be adjusted, and hence must be changed. */
2585 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
2586 {
2587 isym = isymbuf + ELF32_R_SYM (irel->r_info);
2588 if (isym->st_shndx == sec_shndx
2589 && (isym->st_value <= addr
2590 || isym->st_value >= toaddr))
2591 {
2592 bfd_vma val;
2593
2594 val = bfd_get_32 (abfd, contents + nraddr);
2595 val += isym->st_value;
2596 if (val > addr && val < toaddr)
2597 bfd_put_32 (abfd, val - count, contents + nraddr);
2598 }
2599 }
2600 start = stop = addr;
2601 break;
2602
2603 case R_SH_DIR8WPN:
2604 off = insn & 0xff;
2605 if (off & 0x80)
2606 off -= 0x100;
2607 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
2608 break;
2609
2610 case R_SH_IND12W:
2611 off = insn & 0xfff;
2612 if (! off)
2613 {
2614 /* This has been made by previous relaxation. Since the
2615 relocation will be against an external symbol, the
2616 final relocation will just do the right thing. */
2617 start = stop = addr;
2618 }
2619 else
2620 {
2621 if (off & 0x800)
2622 off -= 0x1000;
2623 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
2624
2625 /* The addend will be against the section symbol, thus
2626 for adjusting the addend, the relevant start is the
2627 start of the section.
2628 N.B. If we want to abandon in-place changes here and
2629 test directly using symbol + addend, we have to take into
2630 account that the addend has already been adjusted by -4. */
2631 if (stop > addr && stop < toaddr)
2632 irel->r_addend -= count;
2633 }
2634 break;
2635
2636 case R_SH_DIR8WPZ:
2637 off = insn & 0xff;
2638 stop = start + 4 + off * 2;
2639 break;
2640
2641 case R_SH_DIR8WPL:
2642 off = insn & 0xff;
2643 stop = (start & ~(bfd_vma) 3) + 4 + off * 4;
2644 break;
2645
2646 case R_SH_SWITCH8:
2647 case R_SH_SWITCH16:
2648 case R_SH_SWITCH32:
2649 /* These relocs types represent
2650 .word L2-L1
2651 The r_addend field holds the difference between the reloc
2652 address and L1. That is the start of the reloc, and
2653 adding in the contents gives us the top. We must adjust
2654 both the r_offset field and the section contents.
2655 N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
2656 and the elf bfd r_offset is called r_vaddr. */
2657
2658 stop = irel->r_offset;
2659 start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
2660
2661 if (start > addr
2662 && start < toaddr
2663 && (stop <= addr || stop >= toaddr))
2664 irel->r_addend += count;
2665 else if (stop > addr
2666 && stop < toaddr
2667 && (start <= addr || start >= toaddr))
2668 irel->r_addend -= count;
2669
2670 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
2671 voff = bfd_get_signed_16 (abfd, contents + nraddr);
2672 else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
2673 voff = bfd_get_8 (abfd, contents + nraddr);
2674 else
2675 voff = bfd_get_signed_32 (abfd, contents + nraddr);
2676 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
2677
2678 break;
2679
2680 case R_SH_USES:
2681 start = irel->r_offset;
2682 stop = (bfd_vma) ((bfd_signed_vma) start
2683 + (long) irel->r_addend
2684 + 4);
2685 break;
2686 }
2687
2688 if (start > addr
2689 && start < toaddr
2690 && (stop <= addr || stop >= toaddr))
2691 adjust = count;
2692 else if (stop > addr
2693 && stop < toaddr
2694 && (start <= addr || start >= toaddr))
2695 adjust = - count;
2696 else
2697 adjust = 0;
2698
2699 if (adjust != 0)
2700 {
2701 oinsn = insn;
2702 overflow = FALSE;
2703 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
2704 {
2705 default:
2706 abort ();
2707 break;
2708
2709 case R_SH_DIR8WPN:
2710 case R_SH_DIR8WPZ:
2711 insn += adjust / 2;
2712 if ((oinsn & 0xff00) != (insn & 0xff00))
2713 overflow = TRUE;
2714 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
2715 break;
2716
2717 case R_SH_IND12W:
2718 insn += adjust / 2;
2719 if ((oinsn & 0xf000) != (insn & 0xf000))
2720 overflow = TRUE;
2721 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
2722 break;
2723
2724 case R_SH_DIR8WPL:
2725 BFD_ASSERT (adjust == count || count >= 4);
2726 if (count >= 4)
2727 insn += adjust / 4;
2728 else
2729 {
2730 if ((irel->r_offset & 3) == 0)
2731 ++insn;
2732 }
2733 if ((oinsn & 0xff00) != (insn & 0xff00))
2734 overflow = TRUE;
2735 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
2736 break;
2737
2738 case R_SH_SWITCH8:
2739 voff += adjust;
2740 if (voff < 0 || voff >= 0xff)
2741 overflow = TRUE;
2742 bfd_put_8 (abfd, voff, contents + nraddr);
2743 break;
2744
2745 case R_SH_SWITCH16:
2746 voff += adjust;
2747 if (voff < - 0x8000 || voff >= 0x8000)
2748 overflow = TRUE;
2749 bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
2750 break;
2751
2752 case R_SH_SWITCH32:
2753 voff += adjust;
2754 bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
2755 break;
2756
2757 case R_SH_USES:
2758 irel->r_addend += adjust;
2759 break;
2760 }
2761
2762 if (overflow)
2763 {
2764 ((*_bfd_error_handler)
2765 (_("%B: 0x%lx: fatal: reloc overflow while relaxing"),
2766 abfd, (unsigned long) irel->r_offset));
2767 bfd_set_error (bfd_error_bad_value);
2768 return FALSE;
2769 }
2770 }
2771
2772 irel->r_offset = nraddr;
2773 }
2774
2775 /* Look through all the other sections. If there contain any IMM32
2776 relocs against internal symbols which we are not going to adjust
2777 below, we may need to adjust the addends. */
2778 for (o = abfd->sections; o != NULL; o = o->next)
2779 {
2780 Elf_Internal_Rela *internal_relocs;
2781 Elf_Internal_Rela *irelscan, *irelscanend;
2782 bfd_byte *ocontents;
2783
2784 if (o == sec
2785 || (o->flags & SEC_RELOC) == 0
2786 || o->reloc_count == 0)
2787 continue;
2788
2789 /* We always cache the relocs. Perhaps, if info->keep_memory is
2790 FALSE, we should free them, if we are permitted to, when we
2791 leave sh_coff_relax_section. */
2792 internal_relocs = (_bfd_elf_link_read_relocs
2793 (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE));
2794 if (internal_relocs == NULL)
2795 return FALSE;
2796
2797 ocontents = NULL;
2798 irelscanend = internal_relocs + o->reloc_count;
2799 for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
2800 {
2801 /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
2802 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
2803 {
2804 bfd_vma start, stop;
2805 bfd_signed_vma voff;
2806
2807 if (ocontents == NULL)
2808 {
2809 if (elf_section_data (o)->this_hdr.contents != NULL)
2810 ocontents = elf_section_data (o)->this_hdr.contents;
2811 else
2812 {
2813 /* We always cache the section contents.
2814 Perhaps, if info->keep_memory is FALSE, we
2815 should free them, if we are permitted to,
2816 when we leave sh_coff_relax_section. */
2817 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
2818 {
2819 if (ocontents != NULL)
2820 free (ocontents);
2821 return FALSE;
2822 }
2823
2824 elf_section_data (o)->this_hdr.contents = ocontents;
2825 }
2826 }
2827
2828 stop = irelscan->r_offset;
2829 start
2830 = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
2831
2832 /* STOP is in a different section, so it won't change. */
2833 if (start > addr && start < toaddr)
2834 irelscan->r_addend += count;
2835
2836 voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
2837 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
2838
2839 if (start > addr
2840 && start < toaddr
2841 && (stop <= addr || stop >= toaddr))
2842 bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
2843 ocontents + irelscan->r_offset);
2844 else if (stop > addr
2845 && stop < toaddr
2846 && (start <= addr || start >= toaddr))
2847 bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
2848 ocontents + irelscan->r_offset);
2849 }
2850
2851 if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
2852 continue;
2853
2854 if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
2855 continue;
2856
2857
2858 isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
2859 if (isym->st_shndx == sec_shndx
2860 && (isym->st_value <= addr
2861 || isym->st_value >= toaddr))
2862 {
2863 bfd_vma val;
2864
2865 if (ocontents == NULL)
2866 {
2867 if (elf_section_data (o)->this_hdr.contents != NULL)
2868 ocontents = elf_section_data (o)->this_hdr.contents;
2869 else
2870 {
2871 /* We always cache the section contents.
2872 Perhaps, if info->keep_memory is FALSE, we
2873 should free them, if we are permitted to,
2874 when we leave sh_coff_relax_section. */
2875 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
2876 {
2877 if (ocontents != NULL)
2878 free (ocontents);
2879 return FALSE;
2880 }
2881
2882 elf_section_data (o)->this_hdr.contents = ocontents;
2883 }
2884 }
2885
2886 val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
2887 val += isym->st_value;
2888 if (val > addr && val < toaddr)
2889 bfd_put_32 (abfd, val - count,
2890 ocontents + irelscan->r_offset);
2891 }
2892 }
2893 }
2894
2895 /* Adjust the local symbols defined in this section. */
2896 isymend = isymbuf + symtab_hdr->sh_info;
2897 for (isym = isymbuf; isym < isymend; isym++)
2898 {
2899 if (isym->st_shndx == sec_shndx
2900 && isym->st_value > addr
2901 && isym->st_value < toaddr)
2902 isym->st_value -= count;
2903 }
2904
2905 /* Now adjust the global symbols defined in this section. */
2906 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2907 - symtab_hdr->sh_info);
2908 sym_hashes = elf_sym_hashes (abfd);
2909 end_hashes = sym_hashes + symcount;
2910 for (; sym_hashes < end_hashes; sym_hashes++)
2911 {
2912 struct elf_link_hash_entry *sym_hash = *sym_hashes;
2913 if ((sym_hash->root.type == bfd_link_hash_defined
2914 || sym_hash->root.type == bfd_link_hash_defweak)
2915 && sym_hash->root.u.def.section == sec
2916 && sym_hash->root.u.def.value > addr
2917 && sym_hash->root.u.def.value < toaddr)
2918 {
2919 sym_hash->root.u.def.value -= count;
2920 }
2921 }
2922
2923 /* See if we can move the ALIGN reloc forward. We have adjusted
2924 r_offset for it already. */
2925 if (irelalign != NULL)
2926 {
2927 bfd_vma alignto, alignaddr;
2928
2929 alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
2930 alignaddr = BFD_ALIGN (irelalign->r_offset,
2931 1 << irelalign->r_addend);
2932 if (alignto != alignaddr)
2933 {
2934 /* Tail recursion. */
2935 return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
2936 (int) (alignto - alignaddr));
2937 }
2938 }
2939
2940 return TRUE;
2941 }
2942
2943 /* Look for loads and stores which we can align to four byte
2944 boundaries. This is like sh_align_loads in coff-sh.c. */
2945
2946 static bfd_boolean
sh_elf_align_loads(bfd * abfd ATTRIBUTE_UNUSED,asection * sec,Elf_Internal_Rela * internal_relocs,bfd_byte * contents ATTRIBUTE_UNUSED,bfd_boolean * pswapped)2947 sh_elf_align_loads (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
2948 Elf_Internal_Rela *internal_relocs,
2949 bfd_byte *contents ATTRIBUTE_UNUSED,
2950 bfd_boolean *pswapped)
2951 {
2952 Elf_Internal_Rela *irel, *irelend;
2953 bfd_vma *labels = NULL;
2954 bfd_vma *label, *label_end;
2955 bfd_size_type amt;
2956
2957 *pswapped = FALSE;
2958
2959 irelend = internal_relocs + sec->reloc_count;
2960
2961 /* Get all the addresses with labels on them. */
2962 amt = sec->reloc_count;
2963 amt *= sizeof (bfd_vma);
2964 labels = (bfd_vma *) bfd_malloc (amt);
2965 if (labels == NULL)
2966 goto error_return;
2967 label_end = labels;
2968 for (irel = internal_relocs; irel < irelend; irel++)
2969 {
2970 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
2971 {
2972 *label_end = irel->r_offset;
2973 ++label_end;
2974 }
2975 }
2976
2977 /* Note that the assembler currently always outputs relocs in
2978 address order. If that ever changes, this code will need to sort
2979 the label values and the relocs. */
2980
2981 label = labels;
2982
2983 for (irel = internal_relocs; irel < irelend; irel++)
2984 {
2985 bfd_vma start, stop;
2986
2987 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
2988 continue;
2989
2990 start = irel->r_offset;
2991
2992 for (irel++; irel < irelend; irel++)
2993 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
2994 break;
2995 if (irel < irelend)
2996 stop = irel->r_offset;
2997 else
2998 stop = sec->size;
2999
3000 if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
3001 internal_relocs, &label,
3002 label_end, start, stop, pswapped))
3003 goto error_return;
3004 }
3005
3006 free (labels);
3007
3008 return TRUE;
3009
3010 error_return:
3011 if (labels != NULL)
3012 free (labels);
3013 return FALSE;
3014 }
3015
3016 #ifndef SH64_ELF
3017 /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
3018
3019 static bfd_boolean
sh_elf_swap_insns(bfd * abfd,asection * sec,void * relocs,bfd_byte * contents,bfd_vma addr)3020 sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs,
3021 bfd_byte *contents, bfd_vma addr)
3022 {
3023 Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
3024 unsigned short i1, i2;
3025 Elf_Internal_Rela *irel, *irelend;
3026
3027 /* Swap the instructions themselves. */
3028 i1 = bfd_get_16 (abfd, contents + addr);
3029 i2 = bfd_get_16 (abfd, contents + addr + 2);
3030 bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
3031 bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
3032
3033 /* Adjust all reloc addresses. */
3034 irelend = internal_relocs + sec->reloc_count;
3035 for (irel = internal_relocs; irel < irelend; irel++)
3036 {
3037 enum elf_sh_reloc_type type;
3038 int add;
3039
3040 /* There are a few special types of relocs that we don't want to
3041 adjust. These relocs do not apply to the instruction itself,
3042 but are only associated with the address. */
3043 type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
3044 if (type == R_SH_ALIGN
3045 || type == R_SH_CODE
3046 || type == R_SH_DATA
3047 || type == R_SH_LABEL)
3048 continue;
3049
3050 /* If an R_SH_USES reloc points to one of the addresses being
3051 swapped, we must adjust it. It would be incorrect to do this
3052 for a jump, though, since we want to execute both
3053 instructions after the jump. (We have avoided swapping
3054 around a label, so the jump will not wind up executing an
3055 instruction it shouldn't). */
3056 if (type == R_SH_USES)
3057 {
3058 bfd_vma off;
3059
3060 off = irel->r_offset + 4 + irel->r_addend;
3061 if (off == addr)
3062 irel->r_offset += 2;
3063 else if (off == addr + 2)
3064 irel->r_offset -= 2;
3065 }
3066
3067 if (irel->r_offset == addr)
3068 {
3069 irel->r_offset += 2;
3070 add = -2;
3071 }
3072 else if (irel->r_offset == addr + 2)
3073 {
3074 irel->r_offset -= 2;
3075 add = 2;
3076 }
3077 else
3078 add = 0;
3079
3080 if (add != 0)
3081 {
3082 bfd_byte *loc;
3083 unsigned short insn, oinsn;
3084 bfd_boolean overflow;
3085
3086 loc = contents + irel->r_offset;
3087 overflow = FALSE;
3088 switch (type)
3089 {
3090 default:
3091 break;
3092
3093 case R_SH_DIR8WPN:
3094 case R_SH_DIR8WPZ:
3095 insn = bfd_get_16 (abfd, loc);
3096 oinsn = insn;
3097 insn += add / 2;
3098 if ((oinsn & 0xff00) != (insn & 0xff00))
3099 overflow = TRUE;
3100 bfd_put_16 (abfd, (bfd_vma) insn, loc);
3101 break;
3102
3103 case R_SH_IND12W:
3104 insn = bfd_get_16 (abfd, loc);
3105 oinsn = insn;
3106 insn += add / 2;
3107 if ((oinsn & 0xf000) != (insn & 0xf000))
3108 overflow = TRUE;
3109 bfd_put_16 (abfd, (bfd_vma) insn, loc);
3110 break;
3111
3112 case R_SH_DIR8WPL:
3113 /* This reloc ignores the least significant 3 bits of
3114 the program counter before adding in the offset.
3115 This means that if ADDR is at an even address, the
3116 swap will not affect the offset. If ADDR is an at an
3117 odd address, then the instruction will be crossing a
3118 four byte boundary, and must be adjusted. */
3119 if ((addr & 3) != 0)
3120 {
3121 insn = bfd_get_16 (abfd, loc);
3122 oinsn = insn;
3123 insn += add / 2;
3124 if ((oinsn & 0xff00) != (insn & 0xff00))
3125 overflow = TRUE;
3126 bfd_put_16 (abfd, (bfd_vma) insn, loc);
3127 }
3128
3129 break;
3130 }
3131
3132 if (overflow)
3133 {
3134 ((*_bfd_error_handler)
3135 (_("%B: 0x%lx: fatal: reloc overflow while relaxing"),
3136 abfd, (unsigned long) irel->r_offset));
3137 bfd_set_error (bfd_error_bad_value);
3138 return FALSE;
3139 }
3140 }
3141 }
3142
3143 return TRUE;
3144 }
3145 #endif /* defined SH64_ELF */
3146
3147 #ifdef INCLUDE_SHMEDIA
3148
3149 /* The size in bytes of an entry in the procedure linkage table. */
3150
3151 #define PLT_ENTRY_SIZE 64
3152
3153 /* First entry in an absolute procedure linkage table look like this. */
3154
3155 static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
3156 {
3157 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 16, r17 */
3158 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
3159 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
3160 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3161 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
3162 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3163 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3164 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3165 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3166 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3167 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3168 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3169 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3170 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3171 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3172 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3173 };
3174
3175 static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
3176 {
3177 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
3178 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
3179 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
3180 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3181 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
3182 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3183 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3184 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3185 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3186 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3187 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3188 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3189 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3190 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3191 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3192 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3193 };
3194
3195 /* Sebsequent entries in an absolute procedure linkage table look like
3196 this. */
3197
3198 static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
3199 {
3200 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 16, r25 */
3201 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
3202 0x89, 0x90, 0x01, 0x90, /* ld.l r25, 0, r25 */
3203 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3204 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3205 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3206 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3207 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3208 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */
3209 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */
3210 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3211 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3212 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3213 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3214 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3215 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3216 };
3217
3218 static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
3219 {
3220 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
3221 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3222 0x90, 0x01, 0x90, 0x89, /* ld.l r25, 0, r25 */
3223 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3224 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3225 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3226 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3227 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3228 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */
3229 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */
3230 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3231 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3232 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3233 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3234 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3235 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3236 };
3237
3238 /* Entries in a PIC procedure linkage table look like this. */
3239
3240 static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3241 {
3242 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
3243 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
3244 0x40, 0xc2, 0x65, 0x90, /* ldx.l r12, r25, r25 */
3245 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3246 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3247 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3248 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3249 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3250 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3251 0x00, 0xc8, 0x45, 0x10, /* add.l r12, r17, r17 */
3252 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
3253 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3254 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
3255 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3256 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3257 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3258 };
3259
3260 static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3261 {
3262 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3263 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3264 0x90, 0x65, 0xc2, 0x40, /* ldx.l r12, r25, r25 */
3265 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3266 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3267 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3268 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3269 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3270 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3271 0x10, 0x45, 0xc8, 0x00, /* add.l r12, r17, r17 */
3272 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
3273 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3274 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
3275 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3276 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3277 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3278 };
3279
3280 static const bfd_byte *elf_sh_plt0_entry;
3281 static const bfd_byte *elf_sh_plt_entry;
3282 static const bfd_byte *elf_sh_pic_plt_entry;
3283
3284 /* Return size of a PLT entry. */
3285 #define elf_sh_sizeof_plt(info) PLT_ENTRY_SIZE
3286
3287 /* Return offset of the PLT0 address in an absolute PLT entry. */
3288 #define elf_sh_plt_plt0_offset(info) 32
3289
3290 /* Return offset of the linker in PLT0 entry. */
3291 #define elf_sh_plt0_gotplt_offset(info) 0
3292
3293 /* Return offset of the trampoline in PLT entry */
3294 #define elf_sh_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
3295
3296 /* Return offset of the symbol in PLT entry. */
3297 #define elf_sh_plt_symbol_offset(info) 0
3298
3299 /* Return offset of the relocation in PLT entry. */
3300 #define elf_sh_plt_reloc_offset(info) (info->shared ? 52 : 44)
3301
3302 inline static void
movi_shori_putval(bfd * output_bfd,unsigned long value,bfd_byte * addr)3303 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
3304 {
3305 bfd_put_32 (output_bfd,
3306 bfd_get_32 (output_bfd, addr)
3307 | ((value >> 6) & 0x3fffc00),
3308 addr);
3309 bfd_put_32 (output_bfd,
3310 bfd_get_32 (output_bfd, addr + 4)
3311 | ((value << 10) & 0x3fffc00),
3312 addr + 4);
3313 }
3314
3315 #else
3316 /* The size in bytes of an entry in the procedure linkage table. */
3317
3318 #define PLT_ENTRY_SIZE 28
3319
3320 /* First entry in an absolute procedure linkage table look like this. */
3321
3322 /* Note - this code has been "optimised" not to use r2. r2 is used by
3323 GCC to return the address of large structures, so it should not be
3324 corrupted here. This does mean however, that this PLT does not conform
3325 to the SH PIC ABI. That spec says that r0 contains the type of the PLT
3326 and r2 contains the GOT id. This version stores the GOT id in r0 and
3327 ignores the type. Loaders can easily detect this difference however,
3328 since the type will always be 0 or 8, and the GOT ids will always be
3329 greater than or equal to 12. */
3330 static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
3331 {
3332 0xd0, 0x05, /* mov.l 2f,r0 */
3333 0x60, 0x02, /* mov.l @r0,r0 */
3334 0x2f, 0x06, /* mov.l r0,@-r15 */
3335 0xd0, 0x03, /* mov.l 1f,r0 */
3336 0x60, 0x02, /* mov.l @r0,r0 */
3337 0x40, 0x2b, /* jmp @r0 */
3338 0x60, 0xf6, /* mov.l @r15+,r0 */
3339 0x00, 0x09, /* nop */
3340 0x00, 0x09, /* nop */
3341 0x00, 0x09, /* nop */
3342 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
3343 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
3344 };
3345
3346 static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
3347 {
3348 0x05, 0xd0, /* mov.l 2f,r0 */
3349 0x02, 0x60, /* mov.l @r0,r0 */
3350 0x06, 0x2f, /* mov.l r0,@-r15 */
3351 0x03, 0xd0, /* mov.l 1f,r0 */
3352 0x02, 0x60, /* mov.l @r0,r0 */
3353 0x2b, 0x40, /* jmp @r0 */
3354 0xf6, 0x60, /* mov.l @r15+,r0 */
3355 0x09, 0x00, /* nop */
3356 0x09, 0x00, /* nop */
3357 0x09, 0x00, /* nop */
3358 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
3359 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
3360 };
3361
3362 /* Sebsequent entries in an absolute procedure linkage table look like
3363 this. */
3364
3365 static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
3366 {
3367 0xd0, 0x04, /* mov.l 1f,r0 */
3368 0x60, 0x02, /* mov.l @r0,r0 */
3369 0xd1, 0x02, /* mov.l 0f,r1 */
3370 0x40, 0x2b, /* jmp @r0 */
3371 0x60, 0x13, /* mov r1,r0 */
3372 0xd1, 0x03, /* mov.l 2f,r1 */
3373 0x40, 0x2b, /* jmp @r0 */
3374 0x00, 0x09, /* nop */
3375 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
3376 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3377 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
3378 };
3379
3380 static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
3381 {
3382 0x04, 0xd0, /* mov.l 1f,r0 */
3383 0x02, 0x60, /* mov.l @r0,r0 */
3384 0x02, 0xd1, /* mov.l 0f,r1 */
3385 0x2b, 0x40, /* jmp @r0 */
3386 0x13, 0x60, /* mov r1,r0 */
3387 0x03, 0xd1, /* mov.l 2f,r1 */
3388 0x2b, 0x40, /* jmp @r0 */
3389 0x09, 0x00, /* nop */
3390 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
3391 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3392 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
3393 };
3394
3395 /* Entries in a PIC procedure linkage table look like this. */
3396
3397 static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3398 {
3399 0xd0, 0x04, /* mov.l 1f,r0 */
3400 0x00, 0xce, /* mov.l @(r0,r12),r0 */
3401 0x40, 0x2b, /* jmp @r0 */
3402 0x00, 0x09, /* nop */
3403 0x50, 0xc2, /* mov.l @(8,r12),r0 */
3404 0xd1, 0x03, /* mov.l 2f,r1 */
3405 0x40, 0x2b, /* jmp @r0 */
3406 0x50, 0xc1, /* mov.l @(4,r12),r0 */
3407 0x00, 0x09, /* nop */
3408 0x00, 0x09, /* nop */
3409 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3410 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
3411 };
3412
3413 static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3414 {
3415 0x04, 0xd0, /* mov.l 1f,r0 */
3416 0xce, 0x00, /* mov.l @(r0,r12),r0 */
3417 0x2b, 0x40, /* jmp @r0 */
3418 0x09, 0x00, /* nop */
3419 0xc2, 0x50, /* mov.l @(8,r12),r0 */
3420 0x03, 0xd1, /* mov.l 2f,r1 */
3421 0x2b, 0x40, /* jmp @r0 */
3422 0xc1, 0x50, /* mov.l @(4,r12),r0 */
3423 0x09, 0x00, /* nop */
3424 0x09, 0x00, /* nop */
3425 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3426 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
3427 };
3428
3429 static const bfd_byte *elf_sh_plt0_entry;
3430 static const bfd_byte *elf_sh_plt_entry;
3431 static const bfd_byte *elf_sh_pic_plt_entry;
3432
3433 /* Return size of a PLT entry. */
3434 #define elf_sh_sizeof_plt(info) PLT_ENTRY_SIZE
3435
3436 /* Return offset of the PLT0 address in an absolute PLT entry. */
3437 #define elf_sh_plt_plt0_offset(info) 16
3438
3439 /* Return offset of the linker in PLT0 entry. */
3440 #define elf_sh_plt0_linker_offset(info) 20
3441
3442 /* Return offset of the GOT id in PLT0 entry. */
3443 #define elf_sh_plt0_gotid_offset(info) 24
3444
3445 /* Return offset of the temporary in PLT entry */
3446 #define elf_sh_plt_temp_offset(info) 8
3447
3448 /* Return offset of the symbol in PLT entry. */
3449 #define elf_sh_plt_symbol_offset(info) 20
3450
3451 /* Return offset of the relocation in PLT entry. */
3452 #define elf_sh_plt_reloc_offset(info) 24
3453 #endif
3454
3455 /* The sh linker needs to keep track of the number of relocs that it
3456 decides to copy as dynamic relocs in check_relocs for each symbol.
3457 This is so that it can later discard them if they are found to be
3458 unnecessary. We store the information in a field extending the
3459 regular ELF linker hash table. */
3460
3461 struct elf_sh_dyn_relocs
3462 {
3463 struct elf_sh_dyn_relocs *next;
3464
3465 /* The input section of the reloc. */
3466 asection *sec;
3467
3468 /* Total number of relocs copied for the input section. */
3469 bfd_size_type count;
3470
3471 /* Number of pc-relative relocs copied for the input section. */
3472 bfd_size_type pc_count;
3473 };
3474
3475 /* sh ELF linker hash entry. */
3476
3477 struct elf_sh_link_hash_entry
3478 {
3479 struct elf_link_hash_entry root;
3480
3481 #ifdef INCLUDE_SHMEDIA
3482 union
3483 {
3484 bfd_signed_vma refcount;
3485 bfd_vma offset;
3486 } datalabel_got;
3487 #endif
3488
3489 /* Track dynamic relocs copied for this symbol. */
3490 struct elf_sh_dyn_relocs *dyn_relocs;
3491
3492 bfd_signed_vma gotplt_refcount;
3493
3494 enum {
3495 GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE
3496 } tls_type;
3497 };
3498
3499 #define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent))
3500
3501 struct sh_elf_obj_tdata
3502 {
3503 struct elf_obj_tdata root;
3504
3505 /* tls_type for each local got entry. */
3506 char *local_got_tls_type;
3507 };
3508
3509 #define sh_elf_tdata(abfd) \
3510 ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
3511
3512 #define sh_elf_local_got_tls_type(abfd) \
3513 (sh_elf_tdata (abfd)->local_got_tls_type)
3514
3515 /* Override the generic function because we need to store sh_elf_obj_tdata
3516 as the specific tdata. */
3517
3518 static bfd_boolean
sh_elf_mkobject(bfd * abfd)3519 sh_elf_mkobject (bfd *abfd)
3520 {
3521 bfd_size_type amt = sizeof (struct sh_elf_obj_tdata);
3522 abfd->tdata.any = bfd_zalloc (abfd, amt);
3523 if (abfd->tdata.any == NULL)
3524 return FALSE;
3525 return TRUE;
3526 }
3527
3528 /* sh ELF linker hash table. */
3529
3530 struct elf_sh_link_hash_table
3531 {
3532 struct elf_link_hash_table root;
3533
3534 /* Short-cuts to get to dynamic linker sections. */
3535 asection *sgot;
3536 asection *sgotplt;
3537 asection *srelgot;
3538 asection *splt;
3539 asection *srelplt;
3540 asection *sdynbss;
3541 asection *srelbss;
3542
3543 /* Small local sym to section mapping cache. */
3544 struct sym_sec_cache sym_sec;
3545
3546 /* A counter or offset to track a TLS got entry. */
3547 union
3548 {
3549 bfd_signed_vma refcount;
3550 bfd_vma offset;
3551 } tls_ldm_got;
3552 };
3553
3554 /* Traverse an sh ELF linker hash table. */
3555
3556 #define sh_elf_link_hash_traverse(table, func, info) \
3557 (elf_link_hash_traverse \
3558 (&(table)->root, \
3559 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
3560 (info)))
3561
3562 /* Get the sh ELF linker hash table from a link_info structure. */
3563
3564 #define sh_elf_hash_table(p) \
3565 ((struct elf_sh_link_hash_table *) ((p)->hash))
3566
3567 /* Create an entry in an sh ELF linker hash table. */
3568
3569 static struct bfd_hash_entry *
sh_elf_link_hash_newfunc(struct bfd_hash_entry * entry,struct bfd_hash_table * table,const char * string)3570 sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3571 struct bfd_hash_table *table,
3572 const char *string)
3573 {
3574 struct elf_sh_link_hash_entry *ret =
3575 (struct elf_sh_link_hash_entry *) entry;
3576
3577 /* Allocate the structure if it has not already been allocated by a
3578 subclass. */
3579 if (ret == (struct elf_sh_link_hash_entry *) NULL)
3580 ret = ((struct elf_sh_link_hash_entry *)
3581 bfd_hash_allocate (table,
3582 sizeof (struct elf_sh_link_hash_entry)));
3583 if (ret == (struct elf_sh_link_hash_entry *) NULL)
3584 return (struct bfd_hash_entry *) ret;
3585
3586 /* Call the allocation method of the superclass. */
3587 ret = ((struct elf_sh_link_hash_entry *)
3588 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3589 table, string));
3590 if (ret != (struct elf_sh_link_hash_entry *) NULL)
3591 {
3592 ret->dyn_relocs = NULL;
3593 ret->gotplt_refcount = 0;
3594 #ifdef INCLUDE_SHMEDIA
3595 ret->datalabel_got.refcount = ret->root.got.refcount;
3596 #endif
3597 ret->tls_type = GOT_UNKNOWN;
3598 }
3599
3600 return (struct bfd_hash_entry *) ret;
3601 }
3602
3603 /* Create an sh ELF linker hash table. */
3604
3605 static struct bfd_link_hash_table *
sh_elf_link_hash_table_create(bfd * abfd)3606 sh_elf_link_hash_table_create (bfd *abfd)
3607 {
3608 struct elf_sh_link_hash_table *ret;
3609 bfd_size_type amt = sizeof (struct elf_sh_link_hash_table);
3610
3611 ret = (struct elf_sh_link_hash_table *) bfd_malloc (amt);
3612 if (ret == (struct elf_sh_link_hash_table *) NULL)
3613 return NULL;
3614
3615 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
3616 sh_elf_link_hash_newfunc))
3617 {
3618 free (ret);
3619 return NULL;
3620 }
3621
3622 ret->sgot = NULL;
3623 ret->sgotplt = NULL;
3624 ret->srelgot = NULL;
3625 ret->splt = NULL;
3626 ret->srelplt = NULL;
3627 ret->sdynbss = NULL;
3628 ret->srelbss = NULL;
3629 ret->sym_sec.abfd = NULL;
3630 ret->tls_ldm_got.refcount = 0;
3631
3632 return &ret->root.root;
3633 }
3634
3635 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
3636 shortcuts to them in our hash table. */
3637
3638 static bfd_boolean
create_got_section(bfd * dynobj,struct bfd_link_info * info)3639 create_got_section (bfd *dynobj, struct bfd_link_info *info)
3640 {
3641 struct elf_sh_link_hash_table *htab;
3642
3643 if (! _bfd_elf_create_got_section (dynobj, info))
3644 return FALSE;
3645
3646 htab = sh_elf_hash_table (info);
3647 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
3648 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
3649 if (! htab->sgot || ! htab->sgotplt)
3650 abort ();
3651
3652 htab->srelgot = bfd_make_section_with_flags (dynobj, ".rela.got",
3653 (SEC_ALLOC | SEC_LOAD
3654 | SEC_HAS_CONTENTS
3655 | SEC_IN_MEMORY
3656 | SEC_LINKER_CREATED
3657 | SEC_READONLY));
3658 if (htab->srelgot == NULL
3659 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
3660 return FALSE;
3661 return TRUE;
3662 }
3663
3664 /* Create dynamic sections when linking against a dynamic object. */
3665
3666 static bfd_boolean
sh_elf_create_dynamic_sections(bfd * abfd,struct bfd_link_info * info)3667 sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3668 {
3669 struct elf_sh_link_hash_table *htab;
3670 flagword flags, pltflags;
3671 register asection *s;
3672 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3673 int ptralign = 0;
3674
3675 switch (bed->s->arch_size)
3676 {
3677 case 32:
3678 ptralign = 2;
3679 break;
3680
3681 case 64:
3682 ptralign = 3;
3683 break;
3684
3685 default:
3686 bfd_set_error (bfd_error_bad_value);
3687 return FALSE;
3688 }
3689
3690 htab = sh_elf_hash_table (info);
3691 if (htab->root.dynamic_sections_created)
3692 return TRUE;
3693
3694 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3695 .rel[a].bss sections. */
3696
3697 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3698 | SEC_LINKER_CREATED);
3699
3700 pltflags = flags;
3701 pltflags |= SEC_CODE;
3702 if (bed->plt_not_loaded)
3703 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3704 if (bed->plt_readonly)
3705 pltflags |= SEC_READONLY;
3706
3707 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
3708 htab->splt = s;
3709 if (s == NULL
3710 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3711 return FALSE;
3712
3713 if (bed->want_plt_sym)
3714 {
3715 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3716 .plt section. */
3717 struct elf_link_hash_entry *h;
3718 struct bfd_link_hash_entry *bh = NULL;
3719
3720 if (! (_bfd_generic_link_add_one_symbol
3721 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3722 (bfd_vma) 0, (const char *) NULL, FALSE,
3723 get_elf_backend_data (abfd)->collect, &bh)))
3724 return FALSE;
3725
3726 h = (struct elf_link_hash_entry *) bh;
3727 h->def_regular = 1;
3728 h->type = STT_OBJECT;
3729
3730 if (info->shared
3731 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3732 return FALSE;
3733 }
3734
3735 s = bfd_make_section_with_flags (abfd,
3736 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
3737 flags | SEC_READONLY);
3738 htab->srelplt = s;
3739 if (s == NULL
3740 || ! bfd_set_section_alignment (abfd, s, ptralign))
3741 return FALSE;
3742
3743 if (htab->sgot == NULL
3744 && !create_got_section (abfd, info))
3745 return FALSE;
3746
3747 {
3748 const char *secname;
3749 char *relname;
3750 flagword secflags;
3751 asection *sec;
3752
3753 for (sec = abfd->sections; sec; sec = sec->next)
3754 {
3755 secflags = bfd_get_section_flags (abfd, sec);
3756 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
3757 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
3758 continue;
3759 secname = bfd_get_section_name (abfd, sec);
3760 relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6);
3761 strcpy (relname, ".rela");
3762 strcat (relname, secname);
3763 if (bfd_get_section_by_name (abfd, secname))
3764 continue;
3765 s = bfd_make_section_with_flags (abfd, relname,
3766 flags | SEC_READONLY);
3767 if (s == NULL
3768 || ! bfd_set_section_alignment (abfd, s, ptralign))
3769 return FALSE;
3770 }
3771 }
3772
3773 if (bed->want_dynbss)
3774 {
3775 /* The .dynbss section is a place to put symbols which are defined
3776 by dynamic objects, are referenced by regular objects, and are
3777 not functions. We must allocate space for them in the process
3778 image and use a R_*_COPY reloc to tell the dynamic linker to
3779 initialize them at run time. The linker script puts the .dynbss
3780 section into the .bss section of the final image. */
3781 s = bfd_make_section_with_flags (abfd, ".dynbss",
3782 SEC_ALLOC | SEC_LINKER_CREATED);
3783 htab->sdynbss = s;
3784 if (s == NULL)
3785 return FALSE;
3786
3787 /* The .rel[a].bss section holds copy relocs. This section is not
3788 normally needed. We need to create it here, though, so that the
3789 linker will map it to an output section. We can't just create it
3790 only if we need it, because we will not know whether we need it
3791 until we have seen all the input files, and the first time the
3792 main linker code calls BFD after examining all the input files
3793 (size_dynamic_sections) the input sections have already been
3794 mapped to the output sections. If the section turns out not to
3795 be needed, we can discard it later. We will never need this
3796 section when generating a shared object, since they do not use
3797 copy relocs. */
3798 if (! info->shared)
3799 {
3800 s = bfd_make_section_with_flags (abfd,
3801 (bed->default_use_rela_p
3802 ? ".rela.bss" : ".rel.bss"),
3803 flags | SEC_READONLY);
3804 htab->srelbss = s;
3805 if (s == NULL
3806 || ! bfd_set_section_alignment (abfd, s, ptralign))
3807 return FALSE;
3808 }
3809 }
3810
3811 return TRUE;
3812 }
3813
3814 /* Adjust a symbol defined by a dynamic object and referenced by a
3815 regular object. The current definition is in some section of the
3816 dynamic object, but we're not including those sections. We have to
3817 change the definition to something the rest of the link can
3818 understand. */
3819
3820 static bfd_boolean
sh_elf_adjust_dynamic_symbol(struct bfd_link_info * info,struct elf_link_hash_entry * h)3821 sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
3822 struct elf_link_hash_entry *h)
3823 {
3824 struct elf_sh_link_hash_table *htab;
3825 struct elf_sh_link_hash_entry *eh;
3826 struct elf_sh_dyn_relocs *p;
3827 asection *s;
3828 unsigned int power_of_two;
3829
3830 htab = sh_elf_hash_table (info);
3831
3832 /* Make sure we know what is going on here. */
3833 BFD_ASSERT (htab->root.dynobj != NULL
3834 && (h->needs_plt
3835 || h->u.weakdef != NULL
3836 || (h->def_dynamic
3837 && h->ref_regular
3838 && !h->def_regular)));
3839
3840 /* If this is a function, put it in the procedure linkage table. We
3841 will fill in the contents of the procedure linkage table later,
3842 when we know the address of the .got section. */
3843 if (h->type == STT_FUNC
3844 || h->needs_plt)
3845 {
3846 if (h->plt.refcount <= 0
3847 || SYMBOL_CALLS_LOCAL (info, h)
3848 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
3849 && h->root.type == bfd_link_hash_undefweak))
3850 {
3851 /* This case can occur if we saw a PLT reloc in an input
3852 file, but the symbol was never referred to by a dynamic
3853 object. In such a case, we don't actually need to build
3854 a procedure linkage table, and we can just do a REL32
3855 reloc instead. */
3856 h->plt.offset = (bfd_vma) -1;
3857 h->needs_plt = 0;
3858 }
3859
3860 return TRUE;
3861 }
3862 else
3863 h->plt.offset = (bfd_vma) -1;
3864
3865 /* If this is a weak symbol, and there is a real definition, the
3866 processor independent code will have arranged for us to see the
3867 real definition first, and we can just use the same value. */
3868 if (h->u.weakdef != NULL)
3869 {
3870 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3871 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3872 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3873 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3874 if (info->nocopyreloc)
3875 h->non_got_ref = h->u.weakdef->non_got_ref;
3876 return TRUE;
3877 }
3878
3879 /* This is a reference to a symbol defined by a dynamic object which
3880 is not a function. */
3881
3882 /* If we are creating a shared library, we must presume that the
3883 only references to the symbol are via the global offset table.
3884 For such cases we need not do anything here; the relocations will
3885 be handled correctly by relocate_section. */
3886 if (info->shared)
3887 return TRUE;
3888
3889 /* If there are no references to this symbol that do not use the
3890 GOT, we don't need to generate a copy reloc. */
3891 if (!h->non_got_ref)
3892 return TRUE;
3893
3894 /* If -z nocopyreloc was given, we won't generate them either. */
3895 if (info->nocopyreloc)
3896 {
3897 h->non_got_ref = 0;
3898 return TRUE;
3899 }
3900
3901 eh = (struct elf_sh_link_hash_entry *) h;
3902 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3903 {
3904 s = p->sec->output_section;
3905 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
3906 break;
3907 }
3908
3909 /* If we didn't find any dynamic relocs in sections which needs the
3910 copy reloc, then we'll be keeping the dynamic relocs and avoiding
3911 the copy reloc. */
3912 if (p == NULL)
3913 {
3914 h->non_got_ref = 0;
3915 return TRUE;
3916 }
3917
3918 /* We must allocate the symbol in our .dynbss section, which will
3919 become part of the .bss section of the executable. There will be
3920 an entry for this symbol in the .dynsym section. The dynamic
3921 object will contain position independent code, so all references
3922 from the dynamic object to this symbol will go through the global
3923 offset table. The dynamic linker will use the .dynsym entry to
3924 determine the address it must put in the global offset table, so
3925 both the dynamic object and the regular object will refer to the
3926 same memory location for the variable. */
3927
3928 s = htab->sdynbss;
3929 BFD_ASSERT (s != NULL);
3930
3931 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3932 copy the initial value out of the dynamic object and into the
3933 runtime process image. We need to remember the offset into the
3934 .rela.bss section we are going to use. */
3935 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3936 {
3937 asection *srel;
3938
3939 srel = htab->srelbss;
3940 BFD_ASSERT (srel != NULL);
3941 srel->size += sizeof (Elf32_External_Rela);
3942 h->needs_copy = 1;
3943 }
3944
3945 /* We need to figure out the alignment required for this symbol. I
3946 have no idea how ELF linkers handle this. */
3947 power_of_two = bfd_log2 (h->size);
3948 if (power_of_two > 3)
3949 power_of_two = 3;
3950
3951 /* Apply the required alignment. */
3952 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
3953 if (power_of_two > bfd_get_section_alignment (htab->root.dynobj, s))
3954 {
3955 if (! bfd_set_section_alignment (htab->root.dynobj, s, power_of_two))
3956 return FALSE;
3957 }
3958
3959 /* Define the symbol as being at this point in the section. */
3960 h->root.u.def.section = s;
3961 h->root.u.def.value = s->size;
3962
3963 /* Increment the section size to make room for the symbol. */
3964 s->size += h->size;
3965
3966 return TRUE;
3967 }
3968
3969 /* Allocate space in .plt, .got and associated reloc sections for
3970 dynamic relocs. */
3971
3972 static bfd_boolean
allocate_dynrelocs(struct elf_link_hash_entry * h,void * inf)3973 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3974 {
3975 struct bfd_link_info *info;
3976 struct elf_sh_link_hash_table *htab;
3977 struct elf_sh_link_hash_entry *eh;
3978 struct elf_sh_dyn_relocs *p;
3979
3980 if (h->root.type == bfd_link_hash_indirect)
3981 return TRUE;
3982
3983 if (h->root.type == bfd_link_hash_warning)
3984 /* When warning symbols are created, they **replace** the "real"
3985 entry in the hash table, thus we never get to see the real
3986 symbol in a hash traversal. So look at it now. */
3987 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3988
3989 info = (struct bfd_link_info *) inf;
3990 htab = sh_elf_hash_table (info);
3991
3992 eh = (struct elf_sh_link_hash_entry *) h;
3993 if ((h->got.refcount > 0
3994 || h->forced_local)
3995 && eh->gotplt_refcount > 0)
3996 {
3997 /* The symbol has been forced local, or we have some direct got refs,
3998 so treat all the gotplt refs as got refs. */
3999 h->got.refcount += eh->gotplt_refcount;
4000 if (h->plt.refcount >= eh->gotplt_refcount)
4001 h->plt.refcount -= eh->gotplt_refcount;
4002 }
4003
4004 if (htab->root.dynamic_sections_created
4005 && h->plt.refcount > 0
4006 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
4007 || h->root.type != bfd_link_hash_undefweak))
4008 {
4009 /* Make sure this symbol is output as a dynamic symbol.
4010 Undefined weak syms won't yet be marked as dynamic. */
4011 if (h->dynindx == -1
4012 && !h->forced_local)
4013 {
4014 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4015 return FALSE;
4016 }
4017
4018 if (info->shared
4019 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
4020 {
4021 asection *s = htab->splt;
4022
4023 /* If this is the first .plt entry, make room for the special
4024 first entry. */
4025 if (s->size == 0)
4026 s->size += PLT_ENTRY_SIZE;
4027
4028 h->plt.offset = s->size;
4029
4030 /* If this symbol is not defined in a regular file, and we are
4031 not generating a shared library, then set the symbol to this
4032 location in the .plt. This is required to make function
4033 pointers compare as equal between the normal executable and
4034 the shared library. */
4035 if (! info->shared
4036 && !h->def_regular)
4037 {
4038 h->root.u.def.section = s;
4039 h->root.u.def.value = h->plt.offset;
4040 }
4041
4042 /* Make room for this entry. */
4043 s->size += PLT_ENTRY_SIZE;
4044
4045 /* We also need to make an entry in the .got.plt section, which
4046 will be placed in the .got section by the linker script. */
4047 htab->sgotplt->size += 4;
4048
4049 /* We also need to make an entry in the .rel.plt section. */
4050 htab->srelplt->size += sizeof (Elf32_External_Rela);
4051 }
4052 else
4053 {
4054 h->plt.offset = (bfd_vma) -1;
4055 h->needs_plt = 0;
4056 }
4057 }
4058 else
4059 {
4060 h->plt.offset = (bfd_vma) -1;
4061 h->needs_plt = 0;
4062 }
4063
4064 if (h->got.refcount > 0)
4065 {
4066 asection *s;
4067 bfd_boolean dyn;
4068 int tls_type = sh_elf_hash_entry (h)->tls_type;
4069
4070 /* Make sure this symbol is output as a dynamic symbol.
4071 Undefined weak syms won't yet be marked as dynamic. */
4072 if (h->dynindx == -1
4073 && !h->forced_local)
4074 {
4075 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4076 return FALSE;
4077 }
4078
4079 s = htab->sgot;
4080 h->got.offset = s->size;
4081 s->size += 4;
4082 /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
4083 if (tls_type == GOT_TLS_GD)
4084 s->size += 4;
4085 dyn = htab->root.dynamic_sections_created;
4086 /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
4087 R_SH_TLS_GD needs one if local symbol and two if global. */
4088 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
4089 || (tls_type == GOT_TLS_IE && dyn))
4090 htab->srelgot->size += sizeof (Elf32_External_Rela);
4091 else if (tls_type == GOT_TLS_GD)
4092 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
4093 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
4094 || h->root.type != bfd_link_hash_undefweak)
4095 && (info->shared
4096 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
4097 htab->srelgot->size += sizeof (Elf32_External_Rela);
4098 }
4099 else
4100 h->got.offset = (bfd_vma) -1;
4101
4102 #ifdef INCLUDE_SHMEDIA
4103 if (eh->datalabel_got.refcount > 0)
4104 {
4105 asection *s;
4106 bfd_boolean dyn;
4107
4108 /* Make sure this symbol is output as a dynamic symbol.
4109 Undefined weak syms won't yet be marked as dynamic. */
4110 if (h->dynindx == -1
4111 && !h->forced_local)
4112 {
4113 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4114 return FALSE;
4115 }
4116
4117 s = htab->sgot;
4118 eh->datalabel_got.offset = s->size;
4119 s->size += 4;
4120 dyn = htab->root.dynamic_sections_created;
4121 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
4122 htab->srelgot->size += sizeof (Elf32_External_Rela);
4123 }
4124 else
4125 eh->datalabel_got.offset = (bfd_vma) -1;
4126 #endif
4127
4128 if (eh->dyn_relocs == NULL)
4129 return TRUE;
4130
4131 /* In the shared -Bsymbolic case, discard space allocated for
4132 dynamic pc-relative relocs against symbols which turn out to be
4133 defined in regular objects. For the normal shared case, discard
4134 space for pc-relative relocs that have become local due to symbol
4135 visibility changes. */
4136
4137 if (info->shared)
4138 {
4139 if (SYMBOL_CALLS_LOCAL (info, h))
4140 {
4141 struct elf_sh_dyn_relocs **pp;
4142
4143 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
4144 {
4145 p->count -= p->pc_count;
4146 p->pc_count = 0;
4147 if (p->count == 0)
4148 *pp = p->next;
4149 else
4150 pp = &p->next;
4151 }
4152 }
4153
4154 /* Also discard relocs on undefined weak syms with non-default
4155 visibility. */
4156 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4157 && h->root.type == bfd_link_hash_undefweak)
4158 eh->dyn_relocs = NULL;
4159 }
4160 else
4161 {
4162 /* For the non-shared case, discard space for relocs against
4163 symbols which turn out to need copy relocs or are not
4164 dynamic. */
4165
4166 if (!h->non_got_ref
4167 && ((h->def_dynamic
4168 && !h->def_regular)
4169 || (htab->root.dynamic_sections_created
4170 && (h->root.type == bfd_link_hash_undefweak
4171 || h->root.type == bfd_link_hash_undefined))))
4172 {
4173 /* Make sure this symbol is output as a dynamic symbol.
4174 Undefined weak syms won't yet be marked as dynamic. */
4175 if (h->dynindx == -1
4176 && !h->forced_local)
4177 {
4178 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4179 return FALSE;
4180 }
4181
4182 /* If that succeeded, we know we'll be keeping all the
4183 relocs. */
4184 if (h->dynindx != -1)
4185 goto keep;
4186 }
4187
4188 eh->dyn_relocs = NULL;
4189
4190 keep: ;
4191 }
4192
4193 /* Finally, allocate space. */
4194 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4195 {
4196 asection *sreloc = elf_section_data (p->sec)->sreloc;
4197 sreloc->size += p->count * sizeof (Elf32_External_Rela);
4198 }
4199
4200 return TRUE;
4201 }
4202
4203 /* Find any dynamic relocs that apply to read-only sections. */
4204
4205 static bfd_boolean
readonly_dynrelocs(struct elf_link_hash_entry * h,void * inf)4206 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
4207 {
4208 struct elf_sh_link_hash_entry *eh;
4209 struct elf_sh_dyn_relocs *p;
4210
4211 if (h->root.type == bfd_link_hash_warning)
4212 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4213
4214 eh = (struct elf_sh_link_hash_entry *) h;
4215 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4216 {
4217 asection *s = p->sec->output_section;
4218
4219 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4220 {
4221 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4222
4223 info->flags |= DF_TEXTREL;
4224
4225 /* Not an error, just cut short the traversal. */
4226 return FALSE;
4227 }
4228 }
4229 return TRUE;
4230 }
4231
4232 /* Set the sizes of the dynamic sections. */
4233
4234 static bfd_boolean
sh_elf_size_dynamic_sections(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info)4235 sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
4236 struct bfd_link_info *info)
4237 {
4238 struct elf_sh_link_hash_table *htab;
4239 bfd *dynobj;
4240 asection *s;
4241 bfd_boolean relocs;
4242 bfd *ibfd;
4243
4244 htab = sh_elf_hash_table (info);
4245 dynobj = htab->root.dynobj;
4246 BFD_ASSERT (dynobj != NULL);
4247
4248 if (htab->root.dynamic_sections_created)
4249 {
4250 /* Set the contents of the .interp section to the interpreter. */
4251 if (info->executable)
4252 {
4253 s = bfd_get_section_by_name (dynobj, ".interp");
4254 BFD_ASSERT (s != NULL);
4255 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
4256 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
4257 }
4258 }
4259
4260 /* Set up .got offsets for local syms, and space for local dynamic
4261 relocs. */
4262 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4263 {
4264 bfd_signed_vma *local_got;
4265 bfd_signed_vma *end_local_got;
4266 char *local_tls_type;
4267 bfd_size_type locsymcount;
4268 Elf_Internal_Shdr *symtab_hdr;
4269 asection *srel;
4270
4271 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
4272 continue;
4273
4274 for (s = ibfd->sections; s != NULL; s = s->next)
4275 {
4276 struct elf_sh_dyn_relocs *p;
4277
4278 for (p = ((struct elf_sh_dyn_relocs *)
4279 elf_section_data (s)->local_dynrel);
4280 p != NULL;
4281 p = p->next)
4282 {
4283 if (! bfd_is_abs_section (p->sec)
4284 && bfd_is_abs_section (p->sec->output_section))
4285 {
4286 /* Input section has been discarded, either because
4287 it is a copy of a linkonce section or due to
4288 linker script /DISCARD/, so we'll be discarding
4289 the relocs too. */
4290 }
4291 else if (p->count != 0)
4292 {
4293 srel = elf_section_data (p->sec)->sreloc;
4294 srel->size += p->count * sizeof (Elf32_External_Rela);
4295 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
4296 info->flags |= DF_TEXTREL;
4297 }
4298 }
4299 }
4300
4301 local_got = elf_local_got_refcounts (ibfd);
4302 if (!local_got)
4303 continue;
4304
4305 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4306 locsymcount = symtab_hdr->sh_info;
4307 #ifdef INCLUDE_SHMEDIA
4308 /* Count datalabel local GOT. */
4309 locsymcount *= 2;
4310 #endif
4311 end_local_got = local_got + locsymcount;
4312 local_tls_type = sh_elf_local_got_tls_type (ibfd);
4313 s = htab->sgot;
4314 srel = htab->srelgot;
4315 for (; local_got < end_local_got; ++local_got)
4316 {
4317 if (*local_got > 0)
4318 {
4319 *local_got = s->size;
4320 s->size += 4;
4321 if (*local_tls_type == GOT_TLS_GD)
4322 s->size += 4;
4323 if (info->shared)
4324 srel->size += sizeof (Elf32_External_Rela);
4325 }
4326 else
4327 *local_got = (bfd_vma) -1;
4328 ++local_tls_type;
4329 }
4330 }
4331
4332 if (htab->tls_ldm_got.refcount > 0)
4333 {
4334 /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
4335 relocs. */
4336 htab->tls_ldm_got.offset = htab->sgot->size;
4337 htab->sgot->size += 8;
4338 htab->srelgot->size += sizeof (Elf32_External_Rela);
4339 }
4340 else
4341 htab->tls_ldm_got.offset = -1;
4342
4343 /* Allocate global sym .plt and .got entries, and space for global
4344 sym dynamic relocs. */
4345 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
4346
4347 /* We now have determined the sizes of the various dynamic sections.
4348 Allocate memory for them. */
4349 relocs = FALSE;
4350 for (s = dynobj->sections; s != NULL; s = s->next)
4351 {
4352 if ((s->flags & SEC_LINKER_CREATED) == 0)
4353 continue;
4354
4355 if (s == htab->splt
4356 || s == htab->sgot
4357 || s == htab->sgotplt)
4358 {
4359 /* Strip this section if we don't need it; see the
4360 comment below. */
4361 }
4362 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
4363 {
4364 if (s->size != 0 && s != htab->srelplt)
4365 relocs = TRUE;
4366
4367 /* We use the reloc_count field as a counter if we need
4368 to copy relocs into the output file. */
4369 s->reloc_count = 0;
4370 }
4371 else
4372 {
4373 /* It's not one of our sections, so don't allocate space. */
4374 continue;
4375 }
4376
4377 if (s->size == 0)
4378 {
4379 /* If we don't need this section, strip it from the
4380 output file. This is mostly to handle .rela.bss and
4381 .rela.plt. We must create both sections in
4382 create_dynamic_sections, because they must be created
4383 before the linker maps input sections to output
4384 sections. The linker does that before
4385 adjust_dynamic_symbol is called, and it is that
4386 function which decides whether anything needs to go
4387 into these sections. */
4388
4389 s->flags |= SEC_EXCLUDE;
4390 continue;
4391 }
4392
4393 /* Allocate memory for the section contents. We use bfd_zalloc
4394 here in case unused entries are not reclaimed before the
4395 section's contents are written out. This should not happen,
4396 but this way if it does, we get a R_SH_NONE reloc instead
4397 of garbage. */
4398 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
4399 if (s->contents == NULL)
4400 return FALSE;
4401 }
4402
4403 if (htab->root.dynamic_sections_created)
4404 {
4405 /* Add some entries to the .dynamic section. We fill in the
4406 values later, in sh_elf_finish_dynamic_sections, but we
4407 must add the entries now so that we get the correct size for
4408 the .dynamic section. The DT_DEBUG entry is filled in by the
4409 dynamic linker and used by the debugger. */
4410 #define add_dynamic_entry(TAG, VAL) \
4411 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
4412
4413 if (info->executable)
4414 {
4415 if (! add_dynamic_entry (DT_DEBUG, 0))
4416 return FALSE;
4417 }
4418
4419 if (htab->splt->size != 0)
4420 {
4421 if (! add_dynamic_entry (DT_PLTGOT, 0)
4422 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
4423 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
4424 || ! add_dynamic_entry (DT_JMPREL, 0))
4425 return FALSE;
4426 }
4427
4428 if (relocs)
4429 {
4430 if (! add_dynamic_entry (DT_RELA, 0)
4431 || ! add_dynamic_entry (DT_RELASZ, 0)
4432 || ! add_dynamic_entry (DT_RELAENT,
4433 sizeof (Elf32_External_Rela)))
4434 return FALSE;
4435
4436 /* If any dynamic relocs apply to a read-only section,
4437 then we need a DT_TEXTREL entry. */
4438 if ((info->flags & DF_TEXTREL) == 0)
4439 elf_link_hash_traverse (&htab->root, readonly_dynrelocs, info);
4440
4441 if ((info->flags & DF_TEXTREL) != 0)
4442 {
4443 if (! add_dynamic_entry (DT_TEXTREL, 0))
4444 return FALSE;
4445 }
4446 }
4447 }
4448 #undef add_dynamic_entry
4449
4450 return TRUE;
4451 }
4452
4453 /* Relocate an SH ELF section. */
4454
4455 static bfd_boolean
sh_elf_relocate_section(bfd * output_bfd,struct bfd_link_info * info,bfd * input_bfd,asection * input_section,bfd_byte * contents,Elf_Internal_Rela * relocs,Elf_Internal_Sym * local_syms,asection ** local_sections)4456 sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
4457 bfd *input_bfd, asection *input_section,
4458 bfd_byte *contents, Elf_Internal_Rela *relocs,
4459 Elf_Internal_Sym *local_syms,
4460 asection **local_sections)
4461 {
4462 struct elf_sh_link_hash_table *htab;
4463 Elf_Internal_Shdr *symtab_hdr;
4464 struct elf_link_hash_entry **sym_hashes;
4465 Elf_Internal_Rela *rel, *relend;
4466 bfd *dynobj;
4467 bfd_vma *local_got_offsets;
4468 asection *sgot;
4469 asection *sgotplt;
4470 asection *splt;
4471 asection *sreloc;
4472 asection *srelgot;
4473
4474 htab = sh_elf_hash_table (info);
4475 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
4476 sym_hashes = elf_sym_hashes (input_bfd);
4477 dynobj = htab->root.dynobj;
4478 local_got_offsets = elf_local_got_offsets (input_bfd);
4479
4480 sgot = htab->sgot;
4481 sgotplt = htab->sgotplt;
4482 splt = htab->splt;
4483 sreloc = NULL;
4484 srelgot = NULL;
4485
4486 rel = relocs;
4487 relend = relocs + input_section->reloc_count;
4488 for (; rel < relend; rel++)
4489 {
4490 int r_type;
4491 reloc_howto_type *howto;
4492 unsigned long r_symndx;
4493 Elf_Internal_Sym *sym;
4494 asection *sec;
4495 struct elf_link_hash_entry *h;
4496 bfd_vma relocation;
4497 bfd_vma addend = (bfd_vma) 0;
4498 bfd_reloc_status_type r;
4499 int seen_stt_datalabel = 0;
4500 bfd_vma off;
4501 int tls_type;
4502
4503 r_symndx = ELF32_R_SYM (rel->r_info);
4504
4505 r_type = ELF32_R_TYPE (rel->r_info);
4506
4507 /* Many of the relocs are only used for relaxing, and are
4508 handled entirely by the relaxation code. */
4509 if (r_type >= (int) R_SH_GNU_VTINHERIT
4510 && r_type <= (int) R_SH_LABEL)
4511 continue;
4512 if (r_type == (int) R_SH_NONE)
4513 continue;
4514
4515 if (r_type < 0
4516 || r_type >= R_SH_max
4517 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
4518 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
4519 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
4520 && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
4521 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
4522 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
4523 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5
4524 && r_type <= (int) R_SH_LAST_INVALID_RELOC_5)
4525 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
4526 && r_type <= (int) R_SH_LAST_INVALID_RELOC_2))
4527 {
4528 bfd_set_error (bfd_error_bad_value);
4529 return FALSE;
4530 }
4531
4532 howto = sh_elf_howto_table + r_type;
4533
4534 /* For relocs that aren't partial_inplace, we get the addend from
4535 the relocation. */
4536 if (! howto->partial_inplace)
4537 addend = rel->r_addend;
4538
4539 h = NULL;
4540 sym = NULL;
4541 sec = NULL;
4542 if (r_symndx < symtab_hdr->sh_info)
4543 {
4544 sym = local_syms + r_symndx;
4545 sec = local_sections[r_symndx];
4546 relocation = (sec->output_section->vma
4547 + sec->output_offset
4548 + sym->st_value);
4549 /* A local symbol never has STO_SH5_ISA32, so we don't need
4550 datalabel processing here. Make sure this does not change
4551 without notice. */
4552 if ((sym->st_other & STO_SH5_ISA32) != 0)
4553 ((*info->callbacks->reloc_dangerous)
4554 (info,
4555 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
4556 input_bfd, input_section, rel->r_offset));
4557 if (info->relocatable)
4558 {
4559 /* This is a relocatable link. We don't have to change
4560 anything, unless the reloc is against a section symbol,
4561 in which case we have to adjust according to where the
4562 section symbol winds up in the output section. */
4563 sym = local_syms + r_symndx;
4564 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
4565 {
4566 if (! howto->partial_inplace)
4567 {
4568 /* For relocations with the addend in the
4569 relocation, we need just to update the addend.
4570 All real relocs are of type partial_inplace; this
4571 code is mostly for completeness. */
4572 rel->r_addend += sec->output_offset + sym->st_value;
4573
4574 continue;
4575 }
4576
4577 /* Relocs of type partial_inplace need to pick up the
4578 contents in the contents and add the offset resulting
4579 from the changed location of the section symbol.
4580 Using _bfd_final_link_relocate (e.g. goto
4581 final_link_relocate) here would be wrong, because
4582 relocations marked pc_relative would get the current
4583 location subtracted, and we must only do that at the
4584 final link. */
4585 r = _bfd_relocate_contents (howto, input_bfd,
4586 sec->output_offset
4587 + sym->st_value,
4588 contents + rel->r_offset);
4589 goto relocation_done;
4590 }
4591
4592 continue;
4593 }
4594 else if (! howto->partial_inplace)
4595 {
4596 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
4597 addend = rel->r_addend;
4598 }
4599 else if ((sec->flags & SEC_MERGE)
4600 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
4601 {
4602 asection *msec;
4603
4604 if (howto->rightshift || howto->src_mask != 0xffffffff)
4605 {
4606 (*_bfd_error_handler)
4607 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
4608 input_bfd, input_section,
4609 (long) rel->r_offset, howto->name);
4610 return FALSE;
4611 }
4612
4613 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
4614 msec = sec;
4615 addend =
4616 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
4617 - relocation;
4618 addend += msec->output_section->vma + msec->output_offset;
4619 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
4620 addend = 0;
4621 }
4622 }
4623 else
4624 {
4625 /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
4626
4627 /* Section symbol are never (?) placed in the hash table, so
4628 we can just ignore hash relocations when creating a
4629 relocatable object file. */
4630 if (info->relocatable)
4631 continue;
4632
4633 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4634 while (h->root.type == bfd_link_hash_indirect
4635 || h->root.type == bfd_link_hash_warning)
4636 {
4637 #ifdef INCLUDE_SHMEDIA
4638 /* If the reference passes a symbol marked with
4639 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
4640 doesn't count. */
4641 seen_stt_datalabel |= h->type == STT_DATALABEL;
4642 #endif
4643 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4644 }
4645 if (h->root.type == bfd_link_hash_defined
4646 || h->root.type == bfd_link_hash_defweak)
4647 {
4648 bfd_boolean dyn;
4649
4650 dyn = htab->root.dynamic_sections_created;
4651 sec = h->root.u.def.section;
4652 /* In these cases, we don't need the relocation value.
4653 We check specially because in some obscure cases
4654 sec->output_section will be NULL. */
4655 if (r_type == R_SH_GOTPC
4656 || r_type == R_SH_GOTPC_LOW16
4657 || r_type == R_SH_GOTPC_MEDLOW16
4658 || r_type == R_SH_GOTPC_MEDHI16
4659 || r_type == R_SH_GOTPC_HI16
4660 || ((r_type == R_SH_PLT32
4661 || r_type == R_SH_PLT_LOW16
4662 || r_type == R_SH_PLT_MEDLOW16
4663 || r_type == R_SH_PLT_MEDHI16
4664 || r_type == R_SH_PLT_HI16)
4665 && h->plt.offset != (bfd_vma) -1)
4666 || ((r_type == R_SH_GOT32
4667 || r_type == R_SH_GOT_LOW16
4668 || r_type == R_SH_GOT_MEDLOW16
4669 || r_type == R_SH_GOT_MEDHI16
4670 || r_type == R_SH_GOT_HI16)
4671 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
4672 && (! info->shared
4673 || (! info->symbolic && h->dynindx != -1)
4674 || !h->def_regular))
4675 /* The cases above are those in which relocation is
4676 overwritten in the switch block below. The cases
4677 below are those in which we must defer relocation
4678 to run-time, because we can't resolve absolute
4679 addresses when creating a shared library. */
4680 || (info->shared
4681 && ((! info->symbolic && h->dynindx != -1)
4682 || !h->def_regular)
4683 && ((r_type == R_SH_DIR32
4684 && !h->forced_local)
4685 || r_type == R_SH_REL32)
4686 && ((input_section->flags & SEC_ALLOC) != 0
4687 /* DWARF will emit R_SH_DIR32 relocations in its
4688 sections against symbols defined externally
4689 in shared libraries. We can't do anything
4690 with them here. */
4691 || ((input_section->flags & SEC_DEBUGGING) != 0
4692 && h->def_dynamic)))
4693 /* Dynamic relocs are not propagated for SEC_DEBUGGING
4694 sections because such sections are not SEC_ALLOC and
4695 thus ld.so will not process them. */
4696 || (sec->output_section == NULL
4697 && ((input_section->flags & SEC_DEBUGGING) != 0
4698 && h->def_dynamic))
4699 || (sec->output_section == NULL
4700 && (sh_elf_hash_entry (h)->tls_type == GOT_TLS_IE
4701 || sh_elf_hash_entry (h)->tls_type == GOT_TLS_GD)))
4702 relocation = 0;
4703 else if (sec->output_section == NULL)
4704 {
4705 (*_bfd_error_handler)
4706 (_("%B(%A): unresolvable relocation against symbol `%s'"),
4707 input_bfd, input_section, h->root.root.string);
4708 return FALSE;
4709 }
4710 else
4711 relocation = ((h->root.u.def.value
4712 + sec->output_section->vma
4713 + sec->output_offset)
4714 /* A STO_SH5_ISA32 causes a "bitor 1" to the
4715 symbol value, unless we've seen
4716 STT_DATALABEL on the way to it. */
4717 | ((h->other & STO_SH5_ISA32) != 0
4718 && ! seen_stt_datalabel));
4719 }
4720 else if (h->root.type == bfd_link_hash_undefweak)
4721 relocation = 0;
4722 else if (info->unresolved_syms_in_objects == RM_IGNORE
4723 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
4724 relocation = 0;
4725 else
4726 {
4727 if (! info->callbacks->undefined_symbol
4728 (info, h->root.root.string, input_bfd,
4729 input_section, rel->r_offset,
4730 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
4731 || ELF_ST_VISIBILITY (h->other))))
4732 return FALSE;
4733 relocation = 0;
4734 }
4735 }
4736
4737 switch ((int) r_type)
4738 {
4739 final_link_relocate:
4740 /* COFF relocs don't use the addend. The addend is used for
4741 R_SH_DIR32 to be compatible with other compilers. */
4742 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4743 contents, rel->r_offset,
4744 relocation, addend);
4745 break;
4746
4747 case R_SH_IND12W:
4748 goto final_link_relocate;
4749
4750 case R_SH_DIR8WPN:
4751 case R_SH_DIR8WPZ:
4752 case R_SH_DIR8WPL:
4753 /* If the reloc is against the start of this section, then
4754 the assembler has already taken care of it and the reloc
4755 is here only to assist in relaxing. If the reloc is not
4756 against the start of this section, then it's against an
4757 external symbol and we must deal with it ourselves. */
4758 if (input_section->output_section->vma + input_section->output_offset
4759 != relocation)
4760 {
4761 int disp = (relocation
4762 - input_section->output_section->vma
4763 - input_section->output_offset
4764 - rel->r_offset);
4765 int mask = 0;
4766 switch (r_type)
4767 {
4768 case R_SH_DIR8WPN:
4769 case R_SH_DIR8WPZ: mask = 1; break;
4770 case R_SH_DIR8WPL: mask = 3; break;
4771 default: mask = 0; break;
4772 }
4773 if (disp & mask)
4774 {
4775 ((*_bfd_error_handler)
4776 (_("%B: 0x%lx: fatal: unaligned branch target for relax-support relocation"),
4777 input_section->owner,
4778 (unsigned long) rel->r_offset));
4779 bfd_set_error (bfd_error_bad_value);
4780 return FALSE;
4781 }
4782 relocation -= 4;
4783 goto final_link_relocate;
4784 }
4785 r = bfd_reloc_ok;
4786 break;
4787
4788 default:
4789 #ifdef INCLUDE_SHMEDIA
4790 if (shmedia_prepare_reloc (info, input_bfd, input_section,
4791 contents, rel, &relocation))
4792 goto final_link_relocate;
4793 #endif
4794 bfd_set_error (bfd_error_bad_value);
4795 return FALSE;
4796
4797 case R_SH_DIR16:
4798 case R_SH_DIR8:
4799 case R_SH_DIR8U:
4800 case R_SH_DIR8S:
4801 case R_SH_DIR4U:
4802 goto final_link_relocate;
4803
4804 case R_SH_DIR8UL:
4805 case R_SH_DIR4UL:
4806 if (relocation & 3)
4807 {
4808 ((*_bfd_error_handler)
4809 (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"),
4810 input_section->owner,
4811 (unsigned long) rel->r_offset, howto->name,
4812 (unsigned long) relocation));
4813 bfd_set_error (bfd_error_bad_value);
4814 return FALSE;
4815 }
4816 goto final_link_relocate;
4817
4818 case R_SH_DIR8UW:
4819 case R_SH_DIR8SW:
4820 case R_SH_DIR4UW:
4821 if (relocation & 1)
4822 {
4823 ((*_bfd_error_handler)
4824 (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"),
4825 input_section->owner,
4826 (unsigned long) rel->r_offset, howto->name,
4827 (unsigned long) relocation));
4828 bfd_set_error (bfd_error_bad_value);
4829 return FALSE;
4830 }
4831 goto final_link_relocate;
4832
4833 case R_SH_PSHA:
4834 if ((signed int)relocation < -32
4835 || (signed int)relocation > 32)
4836 {
4837 ((*_bfd_error_handler)
4838 (_("%B: 0x%lx: fatal: R_SH_PSHA relocation %d not in range -32..32"),
4839 input_section->owner,
4840 (unsigned long) rel->r_offset,
4841 (unsigned long) relocation));
4842 bfd_set_error (bfd_error_bad_value);
4843 return FALSE;
4844 }
4845 goto final_link_relocate;
4846
4847 case R_SH_PSHL:
4848 if ((signed int)relocation < -16
4849 || (signed int)relocation > 16)
4850 {
4851 ((*_bfd_error_handler)
4852 (_("%B: 0x%lx: fatal: R_SH_PSHL relocation %d not in range -32..32"),
4853 input_section->owner,
4854 (unsigned long) rel->r_offset,
4855 (unsigned long) relocation));
4856 bfd_set_error (bfd_error_bad_value);
4857 return FALSE;
4858 }
4859 goto final_link_relocate;
4860
4861 case R_SH_DIR32:
4862 case R_SH_REL32:
4863 #ifdef INCLUDE_SHMEDIA
4864 case R_SH_IMM_LOW16_PCREL:
4865 case R_SH_IMM_MEDLOW16_PCREL:
4866 case R_SH_IMM_MEDHI16_PCREL:
4867 case R_SH_IMM_HI16_PCREL:
4868 #endif
4869 if (info->shared
4870 && (h == NULL
4871 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
4872 || h->root.type != bfd_link_hash_undefweak)
4873 && r_symndx != 0
4874 && (input_section->flags & SEC_ALLOC) != 0
4875 && (r_type == R_SH_DIR32
4876 || !SYMBOL_CALLS_LOCAL (info, h)))
4877 {
4878 Elf_Internal_Rela outrel;
4879 bfd_byte *loc;
4880 bfd_boolean skip, relocate;
4881
4882 /* When generating a shared object, these relocations
4883 are copied into the output file to be resolved at run
4884 time. */
4885
4886 if (sreloc == NULL)
4887 {
4888 const char *name;
4889
4890 name = (bfd_elf_string_from_elf_section
4891 (input_bfd,
4892 elf_elfheader (input_bfd)->e_shstrndx,
4893 elf_section_data (input_section)->rel_hdr.sh_name));
4894 if (name == NULL)
4895 return FALSE;
4896
4897 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
4898 && strcmp (bfd_get_section_name (input_bfd,
4899 input_section),
4900 name + 5) == 0);
4901
4902 sreloc = bfd_get_section_by_name (dynobj, name);
4903 BFD_ASSERT (sreloc != NULL);
4904 }
4905
4906 skip = FALSE;
4907 relocate = FALSE;
4908
4909 outrel.r_offset =
4910 _bfd_elf_section_offset (output_bfd, info, input_section,
4911 rel->r_offset);
4912 if (outrel.r_offset == (bfd_vma) -1)
4913 skip = TRUE;
4914 else if (outrel.r_offset == (bfd_vma) -2)
4915 skip = TRUE, relocate = TRUE;
4916 outrel.r_offset += (input_section->output_section->vma
4917 + input_section->output_offset);
4918
4919 if (skip)
4920 memset (&outrel, 0, sizeof outrel);
4921 else if (r_type == R_SH_REL32)
4922 {
4923 BFD_ASSERT (h != NULL && h->dynindx != -1);
4924 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
4925 outrel.r_addend
4926 = bfd_get_32 (input_bfd, contents + rel->r_offset);
4927 }
4928 #ifdef INCLUDE_SHMEDIA
4929 else if (r_type == R_SH_IMM_LOW16_PCREL
4930 || r_type == R_SH_IMM_MEDLOW16_PCREL
4931 || r_type == R_SH_IMM_MEDHI16_PCREL
4932 || r_type == R_SH_IMM_HI16_PCREL)
4933 {
4934 BFD_ASSERT (h != NULL && h->dynindx != -1);
4935 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
4936 outrel.r_addend = addend;
4937 }
4938 #endif
4939 else
4940 {
4941 /* h->dynindx may be -1 if this symbol was marked to
4942 become local. */
4943 if (h == NULL
4944 || ((info->symbolic || h->dynindx == -1)
4945 && h->def_regular))
4946 {
4947 relocate = TRUE;
4948 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4949 outrel.r_addend
4950 = relocation + bfd_get_32 (input_bfd,
4951 contents + rel->r_offset);
4952 }
4953 else
4954 {
4955 BFD_ASSERT (h->dynindx != -1);
4956 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
4957 outrel.r_addend
4958 = relocation + bfd_get_32 (input_bfd,
4959 contents + rel->r_offset);
4960 }
4961 }
4962
4963 loc = sreloc->contents;
4964 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4965 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4966
4967 /* If this reloc is against an external symbol, we do
4968 not want to fiddle with the addend. Otherwise, we
4969 need to include the symbol value so that it becomes
4970 an addend for the dynamic reloc. */
4971 if (! relocate)
4972 continue;
4973 }
4974 goto final_link_relocate;
4975
4976 case R_SH_GOTPLT32:
4977 #ifdef INCLUDE_SHMEDIA
4978 case R_SH_GOTPLT_LOW16:
4979 case R_SH_GOTPLT_MEDLOW16:
4980 case R_SH_GOTPLT_MEDHI16:
4981 case R_SH_GOTPLT_HI16:
4982 case R_SH_GOTPLT10BY4:
4983 case R_SH_GOTPLT10BY8:
4984 #endif
4985 /* Relocation is to the entry for this symbol in the
4986 procedure linkage table. */
4987
4988 if (h == NULL
4989 || h->forced_local
4990 || ! info->shared
4991 || info->symbolic
4992 || h->dynindx == -1
4993 || h->plt.offset == (bfd_vma) -1
4994 || h->got.offset != (bfd_vma) -1)
4995 goto force_got;
4996
4997 /* Relocation is to the entry for this symbol in the global
4998 offset table extension for the procedure linkage table. */
4999
5000 BFD_ASSERT (sgotplt != NULL);
5001 relocation = (sgotplt->output_offset
5002 + ((h->plt.offset / elf_sh_sizeof_plt (info)
5003 - 1 + 3) * 4));
5004
5005 #ifdef GOT_BIAS
5006 relocation -= GOT_BIAS;
5007 #endif
5008
5009 goto final_link_relocate;
5010
5011 force_got:
5012 case R_SH_GOT32:
5013 #ifdef INCLUDE_SHMEDIA
5014 case R_SH_GOT_LOW16:
5015 case R_SH_GOT_MEDLOW16:
5016 case R_SH_GOT_MEDHI16:
5017 case R_SH_GOT_HI16:
5018 case R_SH_GOT10BY4:
5019 case R_SH_GOT10BY8:
5020 #endif
5021 /* Relocation is to the entry for this symbol in the global
5022 offset table. */
5023
5024 BFD_ASSERT (sgot != NULL);
5025
5026 if (h != NULL)
5027 {
5028 bfd_boolean dyn;
5029
5030 off = h->got.offset;
5031 #ifdef INCLUDE_SHMEDIA
5032 if (seen_stt_datalabel)
5033 {
5034 struct elf_sh_link_hash_entry *hsh;
5035
5036 hsh = (struct elf_sh_link_hash_entry *)h;
5037 off = hsh->datalabel_got.offset;
5038 }
5039 #endif
5040 BFD_ASSERT (off != (bfd_vma) -1);
5041
5042 dyn = htab->root.dynamic_sections_created;
5043 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
5044 || (info->shared
5045 && SYMBOL_REFERENCES_LOCAL (info, h))
5046 || (ELF_ST_VISIBILITY (h->other)
5047 && h->root.type == bfd_link_hash_undefweak))
5048 {
5049 /* This is actually a static link, or it is a
5050 -Bsymbolic link and the symbol is defined
5051 locally, or the symbol was forced to be local
5052 because of a version file. We must initialize
5053 this entry in the global offset table. Since the
5054 offset must always be a multiple of 4, we use the
5055 least significant bit to record whether we have
5056 initialized it already.
5057
5058 When doing a dynamic link, we create a .rela.got
5059 relocation entry to initialize the value. This
5060 is done in the finish_dynamic_symbol routine. */
5061 if ((off & 1) != 0)
5062 off &= ~1;
5063 else
5064 {
5065 bfd_put_32 (output_bfd, relocation,
5066 sgot->contents + off);
5067 #ifdef INCLUDE_SHMEDIA
5068 if (seen_stt_datalabel)
5069 {
5070 struct elf_sh_link_hash_entry *hsh;
5071
5072 hsh = (struct elf_sh_link_hash_entry *)h;
5073 hsh->datalabel_got.offset |= 1;
5074 }
5075 else
5076 #endif
5077 h->got.offset |= 1;
5078 }
5079 }
5080
5081 relocation = sgot->output_offset + off;
5082 }
5083 else
5084 {
5085 #ifdef INCLUDE_SHMEDIA
5086 if (rel->r_addend)
5087 {
5088 BFD_ASSERT (local_got_offsets != NULL
5089 && (local_got_offsets[symtab_hdr->sh_info
5090 + r_symndx]
5091 != (bfd_vma) -1));
5092
5093 off = local_got_offsets[symtab_hdr->sh_info
5094 + r_symndx];
5095 }
5096 else
5097 {
5098 #endif
5099 BFD_ASSERT (local_got_offsets != NULL
5100 && local_got_offsets[r_symndx] != (bfd_vma) -1);
5101
5102 off = local_got_offsets[r_symndx];
5103 #ifdef INCLUDE_SHMEDIA
5104 }
5105 #endif
5106
5107 /* The offset must always be a multiple of 4. We use
5108 the least significant bit to record whether we have
5109 already generated the necessary reloc. */
5110 if ((off & 1) != 0)
5111 off &= ~1;
5112 else
5113 {
5114 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
5115
5116 if (info->shared)
5117 {
5118 Elf_Internal_Rela outrel;
5119 bfd_byte *loc;
5120
5121 if (srelgot == NULL)
5122 {
5123 srelgot = bfd_get_section_by_name (dynobj,
5124 ".rela.got");
5125 BFD_ASSERT (srelgot != NULL);
5126 }
5127
5128 outrel.r_offset = (sgot->output_section->vma
5129 + sgot->output_offset
5130 + off);
5131 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
5132 outrel.r_addend = relocation;
5133 loc = srelgot->contents;
5134 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
5135 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5136 }
5137
5138 #ifdef INCLUDE_SHMEDIA
5139 if (rel->r_addend)
5140 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
5141 else
5142 #endif
5143 local_got_offsets[r_symndx] |= 1;
5144 }
5145
5146 relocation = sgot->output_offset + off;
5147 }
5148
5149 #ifdef GOT_BIAS
5150 relocation -= GOT_BIAS;
5151 #endif
5152
5153 goto final_link_relocate;
5154
5155 case R_SH_GOTOFF:
5156 #ifdef INCLUDE_SHMEDIA
5157 case R_SH_GOTOFF_LOW16:
5158 case R_SH_GOTOFF_MEDLOW16:
5159 case R_SH_GOTOFF_MEDHI16:
5160 case R_SH_GOTOFF_HI16:
5161 #endif
5162 /* Relocation is relative to the start of the global offset
5163 table. */
5164
5165 BFD_ASSERT (sgot != NULL);
5166
5167 /* Note that sgot->output_offset is not involved in this
5168 calculation. We always want the start of .got. If we
5169 defined _GLOBAL_OFFSET_TABLE in a different way, as is
5170 permitted by the ABI, we might have to change this
5171 calculation. */
5172 relocation -= sgot->output_section->vma;
5173
5174 #ifdef GOT_BIAS
5175 relocation -= GOT_BIAS;
5176 #endif
5177
5178 addend = rel->r_addend;
5179
5180 goto final_link_relocate;
5181
5182 case R_SH_GOTPC:
5183 #ifdef INCLUDE_SHMEDIA
5184 case R_SH_GOTPC_LOW16:
5185 case R_SH_GOTPC_MEDLOW16:
5186 case R_SH_GOTPC_MEDHI16:
5187 case R_SH_GOTPC_HI16:
5188 #endif
5189 /* Use global offset table as symbol value. */
5190
5191 BFD_ASSERT (sgot != NULL);
5192 relocation = sgot->output_section->vma;
5193
5194 #ifdef GOT_BIAS
5195 relocation += GOT_BIAS;
5196 #endif
5197
5198 addend = rel->r_addend;
5199
5200 goto final_link_relocate;
5201
5202 case R_SH_PLT32:
5203 #ifdef INCLUDE_SHMEDIA
5204 case R_SH_PLT_LOW16:
5205 case R_SH_PLT_MEDLOW16:
5206 case R_SH_PLT_MEDHI16:
5207 case R_SH_PLT_HI16:
5208 #endif
5209 /* Relocation is to the entry for this symbol in the
5210 procedure linkage table. */
5211
5212 /* Resolve a PLT reloc against a local symbol directly,
5213 without using the procedure linkage table. */
5214 if (h == NULL)
5215 goto final_link_relocate;
5216
5217 if (h->forced_local)
5218 goto final_link_relocate;
5219
5220 if (h->plt.offset == (bfd_vma) -1)
5221 {
5222 /* We didn't make a PLT entry for this symbol. This
5223 happens when statically linking PIC code, or when
5224 using -Bsymbolic. */
5225 goto final_link_relocate;
5226 }
5227
5228 BFD_ASSERT (splt != NULL);
5229 relocation = (splt->output_section->vma
5230 + splt->output_offset
5231 + h->plt.offset);
5232
5233 #ifdef INCLUDE_SHMEDIA
5234 relocation++;
5235 #endif
5236
5237 addend = rel->r_addend;
5238
5239 goto final_link_relocate;
5240
5241 case R_SH_LOOP_START:
5242 {
5243 static bfd_vma start, end;
5244
5245 start = (relocation + rel->r_addend
5246 - (sec->output_section->vma + sec->output_offset));
5247 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
5248 rel->r_offset, sec, start, end);
5249 break;
5250
5251 case R_SH_LOOP_END:
5252 end = (relocation + rel->r_addend
5253 - (sec->output_section->vma + sec->output_offset));
5254 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
5255 rel->r_offset, sec, start, end);
5256 break;
5257 }
5258
5259 case R_SH_TLS_GD_32:
5260 case R_SH_TLS_IE_32:
5261 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
5262 tls_type = GOT_UNKNOWN;
5263 if (h == NULL && local_got_offsets)
5264 tls_type = sh_elf_local_got_tls_type (input_bfd) [r_symndx];
5265 else if (h != NULL)
5266 {
5267 tls_type = sh_elf_hash_entry (h)->tls_type;
5268 if (! info->shared
5269 && (h->dynindx == -1
5270 || h->def_regular))
5271 r_type = R_SH_TLS_LE_32;
5272 }
5273
5274 if (r_type == R_SH_TLS_GD_32 && tls_type == GOT_TLS_IE)
5275 r_type = R_SH_TLS_IE_32;
5276
5277 if (r_type == R_SH_TLS_LE_32)
5278 {
5279 bfd_vma offset;
5280 unsigned short insn;
5281
5282 if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32)
5283 {
5284 /* GD->LE transition:
5285 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
5286 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
5287 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
5288 We change it into:
5289 mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
5290 nop; nop; ...
5291 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */
5292
5293 offset = rel->r_offset;
5294 BFD_ASSERT (offset >= 16);
5295 /* Size of GD instructions is 16 or 18. */
5296 offset -= 16;
5297 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5298 if ((insn & 0xff00) == 0xc700)
5299 {
5300 BFD_ASSERT (offset >= 2);
5301 offset -= 2;
5302 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5303 }
5304
5305 BFD_ASSERT ((insn & 0xff00) == 0xd400);
5306 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5307 BFD_ASSERT ((insn & 0xff00) == 0xc700);
5308 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5309 BFD_ASSERT ((insn & 0xff00) == 0xd100);
5310 insn = bfd_get_16 (input_bfd, contents + offset + 6);
5311 BFD_ASSERT (insn == 0x310c);
5312 insn = bfd_get_16 (input_bfd, contents + offset + 8);
5313 BFD_ASSERT (insn == 0x410b);
5314 insn = bfd_get_16 (input_bfd, contents + offset + 10);
5315 BFD_ASSERT (insn == 0x34cc);
5316
5317 bfd_put_16 (output_bfd, 0x0012, contents + offset + 2);
5318 bfd_put_16 (output_bfd, 0x304c, contents + offset + 4);
5319 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
5320 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
5321 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
5322 }
5323 else
5324 {
5325 int index;
5326
5327 /* IE->LE transition:
5328 mov.l 1f,r0; stc gbr,rN; mov.l @(r0,r12),rM;
5329 bra 2f; add ...; .align 2; 1: x@GOTTPOFF; 2:
5330 We change it into:
5331 mov.l .Ln,rM; stc gbr,rN; nop; ...;
5332 1: x@TPOFF; 2:. */
5333
5334 offset = rel->r_offset;
5335 BFD_ASSERT (offset >= 16);
5336 /* Size of IE instructions is 10 or 12. */
5337 offset -= 10;
5338 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5339 if ((insn & 0xf0ff) == 0x0012)
5340 {
5341 BFD_ASSERT (offset >= 2);
5342 offset -= 2;
5343 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5344 }
5345
5346 BFD_ASSERT ((insn & 0xff00) == 0xd000);
5347 index = insn & 0x00ff;
5348 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5349 BFD_ASSERT ((insn & 0xf0ff) == 0x0012);
5350 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5351 BFD_ASSERT ((insn & 0xf0ff) == 0x00ce);
5352 insn = 0xd000 | (insn & 0x0f00) | index;
5353 bfd_put_16 (output_bfd, insn, contents + offset + 0);
5354 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
5355 }
5356
5357 bfd_put_32 (output_bfd, tpoff (info, relocation),
5358 contents + rel->r_offset);
5359 continue;
5360 }
5361
5362 sgot = htab->sgot;
5363 if (sgot == NULL)
5364 abort ();
5365
5366 if (h != NULL)
5367 off = h->got.offset;
5368 else
5369 {
5370 if (local_got_offsets == NULL)
5371 abort ();
5372
5373 off = local_got_offsets[r_symndx];
5374 }
5375
5376 /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
5377 if (r_type == R_SH_TLS_IE_32
5378 && ! htab->root.dynamic_sections_created)
5379 {
5380 off &= ~1;
5381 bfd_put_32 (output_bfd, tpoff (info, relocation),
5382 sgot->contents + off);
5383 bfd_put_32 (output_bfd, sgot->output_offset + off,
5384 contents + rel->r_offset);
5385 continue;
5386 }
5387
5388 if ((off & 1) != 0)
5389 off &= ~1;
5390 else
5391 {
5392 Elf_Internal_Rela outrel;
5393 bfd_byte *loc;
5394 int dr_type, indx;
5395
5396 if (srelgot == NULL)
5397 {
5398 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
5399 BFD_ASSERT (srelgot != NULL);
5400 }
5401
5402 outrel.r_offset = (sgot->output_section->vma
5403 + sgot->output_offset + off);
5404
5405 if (h == NULL || h->dynindx == -1)
5406 indx = 0;
5407 else
5408 indx = h->dynindx;
5409
5410 dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 :
5411 R_SH_TLS_TPOFF32);
5412 if (dr_type == R_SH_TLS_TPOFF32 && indx == 0)
5413 outrel.r_addend = relocation - dtpoff_base (info);
5414 else
5415 outrel.r_addend = 0;
5416 outrel.r_info = ELF32_R_INFO (indx, dr_type);
5417 loc = srelgot->contents;
5418 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
5419 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5420
5421 if (r_type == R_SH_TLS_GD_32)
5422 {
5423 if (indx == 0)
5424 {
5425 bfd_put_32 (output_bfd,
5426 relocation - dtpoff_base (info),
5427 sgot->contents + off + 4);
5428 }
5429 else
5430 {
5431 outrel.r_info = ELF32_R_INFO (indx,
5432 R_SH_TLS_DTPOFF32);
5433 outrel.r_offset += 4;
5434 outrel.r_addend = 0;
5435 srelgot->reloc_count++;
5436 loc += sizeof (Elf32_External_Rela);
5437 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5438 }
5439 }
5440
5441 if (h != NULL)
5442 h->got.offset |= 1;
5443 else
5444 local_got_offsets[r_symndx] |= 1;
5445 }
5446
5447 if (off >= (bfd_vma) -2)
5448 abort ();
5449
5450 if (r_type == (int) ELF32_R_TYPE (rel->r_info))
5451 relocation = sgot->output_offset + off;
5452 else
5453 {
5454 bfd_vma offset;
5455 unsigned short insn;
5456
5457 /* GD->IE transition:
5458 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
5459 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
5460 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
5461 We change it into:
5462 mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
5463 nop; nop; bra 3f; nop; .align 2;
5464 1: .long x@TPOFF; 2:...; 3:. */
5465
5466 offset = rel->r_offset;
5467 BFD_ASSERT (offset >= 16);
5468 /* Size of GD instructions is 16 or 18. */
5469 offset -= 16;
5470 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5471 if ((insn & 0xff00) == 0xc700)
5472 {
5473 BFD_ASSERT (offset >= 2);
5474 offset -= 2;
5475 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5476 }
5477
5478 BFD_ASSERT ((insn & 0xff00) == 0xd400);
5479
5480 /* Replace mov.l 1f,R4 with mov.l 1f,r0. */
5481 bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset);
5482
5483 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5484 BFD_ASSERT ((insn & 0xff00) == 0xc700);
5485 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5486 BFD_ASSERT ((insn & 0xff00) == 0xd100);
5487 insn = bfd_get_16 (input_bfd, contents + offset + 6);
5488 BFD_ASSERT (insn == 0x310c);
5489 insn = bfd_get_16 (input_bfd, contents + offset + 8);
5490 BFD_ASSERT (insn == 0x410b);
5491 insn = bfd_get_16 (input_bfd, contents + offset + 10);
5492 BFD_ASSERT (insn == 0x34cc);
5493
5494 bfd_put_16 (output_bfd, 0x0412, contents + offset + 2);
5495 bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4);
5496 bfd_put_16 (output_bfd, 0x304c, contents + offset + 6);
5497 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
5498 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
5499
5500 bfd_put_32 (output_bfd, sgot->output_offset + off,
5501 contents + rel->r_offset);
5502
5503 continue;
5504 }
5505
5506 addend = rel->r_addend;
5507
5508 goto final_link_relocate;
5509
5510 case R_SH_TLS_LD_32:
5511 if (! info->shared)
5512 {
5513 bfd_vma offset;
5514 unsigned short insn;
5515
5516 /* LD->LE transition:
5517 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
5518 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
5519 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
5520 We change it into:
5521 stc gbr,r0; nop; nop; nop;
5522 nop; nop; bra 3f; ...; 3:. */
5523
5524 offset = rel->r_offset;
5525 BFD_ASSERT (offset >= 16);
5526 /* Size of LD instructions is 16 or 18. */
5527 offset -= 16;
5528 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5529 if ((insn & 0xff00) == 0xc700)
5530 {
5531 BFD_ASSERT (offset >= 2);
5532 offset -= 2;
5533 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5534 }
5535
5536 BFD_ASSERT ((insn & 0xff00) == 0xd400);
5537 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5538 BFD_ASSERT ((insn & 0xff00) == 0xc700);
5539 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5540 BFD_ASSERT ((insn & 0xff00) == 0xd100);
5541 insn = bfd_get_16 (input_bfd, contents + offset + 6);
5542 BFD_ASSERT (insn == 0x310c);
5543 insn = bfd_get_16 (input_bfd, contents + offset + 8);
5544 BFD_ASSERT (insn == 0x410b);
5545 insn = bfd_get_16 (input_bfd, contents + offset + 10);
5546 BFD_ASSERT (insn == 0x34cc);
5547
5548 bfd_put_16 (output_bfd, 0x0012, contents + offset + 0);
5549 bfd_put_16 (output_bfd, 0x0009, contents + offset + 2);
5550 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
5551 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
5552 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
5553 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
5554
5555 continue;
5556 }
5557
5558 sgot = htab->sgot;
5559 if (sgot == NULL)
5560 abort ();
5561
5562 off = htab->tls_ldm_got.offset;
5563 if (off & 1)
5564 off &= ~1;
5565 else
5566 {
5567 Elf_Internal_Rela outrel;
5568 bfd_byte *loc;
5569
5570 srelgot = htab->srelgot;
5571 if (srelgot == NULL)
5572 abort ();
5573
5574 outrel.r_offset = (sgot->output_section->vma
5575 + sgot->output_offset + off);
5576 outrel.r_addend = 0;
5577 outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32);
5578 loc = srelgot->contents;
5579 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
5580 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5581 htab->tls_ldm_got.offset |= 1;
5582 }
5583
5584 relocation = sgot->output_offset + off;
5585 addend = rel->r_addend;
5586
5587 goto final_link_relocate;
5588
5589 case R_SH_TLS_LDO_32:
5590 if (! info->shared)
5591 relocation = tpoff (info, relocation);
5592 else
5593 relocation -= dtpoff_base (info);
5594
5595 addend = rel->r_addend;
5596 goto final_link_relocate;
5597
5598 case R_SH_TLS_LE_32:
5599 {
5600 int indx;
5601 Elf_Internal_Rela outrel;
5602 bfd_byte *loc;
5603
5604 if (! info->shared)
5605 {
5606 relocation = tpoff (info, relocation);
5607 addend = rel->r_addend;
5608 goto final_link_relocate;
5609 }
5610
5611 if (sreloc == NULL)
5612 {
5613 const char *name;
5614
5615 name = (bfd_elf_string_from_elf_section
5616 (input_bfd,
5617 elf_elfheader (input_bfd)->e_shstrndx,
5618 elf_section_data (input_section)->rel_hdr.sh_name));
5619 if (name == NULL)
5620 return FALSE;
5621
5622 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
5623 && strcmp (bfd_get_section_name (input_bfd,
5624 input_section),
5625 name + 5) == 0);
5626
5627 sreloc = bfd_get_section_by_name (dynobj, name);
5628 BFD_ASSERT (sreloc != NULL);
5629 }
5630
5631 if (h == NULL || h->dynindx == -1)
5632 indx = 0;
5633 else
5634 indx = h->dynindx;
5635
5636 outrel.r_offset = (input_section->output_section->vma
5637 + input_section->output_offset
5638 + rel->r_offset);
5639 outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32);
5640 if (indx == 0)
5641 outrel.r_addend = relocation - dtpoff_base (info);
5642 else
5643 outrel.r_addend = 0;
5644
5645 loc = sreloc->contents;
5646 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
5647 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5648 continue;
5649 }
5650 }
5651
5652 relocation_done:
5653 if (r != bfd_reloc_ok)
5654 {
5655 switch (r)
5656 {
5657 default:
5658 case bfd_reloc_outofrange:
5659 abort ();
5660 case bfd_reloc_overflow:
5661 {
5662 const char *name;
5663
5664 if (h != NULL)
5665 name = NULL;
5666 else
5667 {
5668 name = (bfd_elf_string_from_elf_section
5669 (input_bfd, symtab_hdr->sh_link, sym->st_name));
5670 if (name == NULL)
5671 return FALSE;
5672 if (*name == '\0')
5673 name = bfd_section_name (input_bfd, sec);
5674 }
5675 if (! ((*info->callbacks->reloc_overflow)
5676 (info, (h ? &h->root : NULL), name, howto->name,
5677 (bfd_vma) 0, input_bfd, input_section,
5678 rel->r_offset)))
5679 return FALSE;
5680 }
5681 break;
5682 }
5683 }
5684 }
5685
5686 return TRUE;
5687 }
5688
5689 /* This is a version of bfd_generic_get_relocated_section_contents
5690 which uses sh_elf_relocate_section. */
5691
5692 static bfd_byte *
sh_elf_get_relocated_section_contents(bfd * output_bfd,struct bfd_link_info * link_info,struct bfd_link_order * link_order,bfd_byte * data,bfd_boolean relocatable,asymbol ** symbols)5693 sh_elf_get_relocated_section_contents (bfd *output_bfd,
5694 struct bfd_link_info *link_info,
5695 struct bfd_link_order *link_order,
5696 bfd_byte *data,
5697 bfd_boolean relocatable,
5698 asymbol **symbols)
5699 {
5700 Elf_Internal_Shdr *symtab_hdr;
5701 asection *input_section = link_order->u.indirect.section;
5702 bfd *input_bfd = input_section->owner;
5703 asection **sections = NULL;
5704 Elf_Internal_Rela *internal_relocs = NULL;
5705 Elf_Internal_Sym *isymbuf = NULL;
5706
5707 /* We only need to handle the case of relaxing, or of having a
5708 particular set of section contents, specially. */
5709 if (relocatable
5710 || elf_section_data (input_section)->this_hdr.contents == NULL)
5711 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
5712 link_order, data,
5713 relocatable,
5714 symbols);
5715
5716 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
5717
5718 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
5719 (size_t) input_section->size);
5720
5721 if ((input_section->flags & SEC_RELOC) != 0
5722 && input_section->reloc_count > 0)
5723 {
5724 asection **secpp;
5725 Elf_Internal_Sym *isym, *isymend;
5726 bfd_size_type amt;
5727
5728 internal_relocs = (_bfd_elf_link_read_relocs
5729 (input_bfd, input_section, NULL,
5730 (Elf_Internal_Rela *) NULL, FALSE));
5731 if (internal_relocs == NULL)
5732 goto error_return;
5733
5734 if (symtab_hdr->sh_info != 0)
5735 {
5736 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5737 if (isymbuf == NULL)
5738 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
5739 symtab_hdr->sh_info, 0,
5740 NULL, NULL, NULL);
5741 if (isymbuf == NULL)
5742 goto error_return;
5743 }
5744
5745 amt = symtab_hdr->sh_info;
5746 amt *= sizeof (asection *);
5747 sections = (asection **) bfd_malloc (amt);
5748 if (sections == NULL && amt != 0)
5749 goto error_return;
5750
5751 isymend = isymbuf + symtab_hdr->sh_info;
5752 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
5753 {
5754 asection *isec;
5755
5756 if (isym->st_shndx == SHN_UNDEF)
5757 isec = bfd_und_section_ptr;
5758 else if (isym->st_shndx == SHN_ABS)
5759 isec = bfd_abs_section_ptr;
5760 else if (isym->st_shndx == SHN_COMMON)
5761 isec = bfd_com_section_ptr;
5762 else
5763 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
5764
5765 *secpp = isec;
5766 }
5767
5768 if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
5769 input_section, data, internal_relocs,
5770 isymbuf, sections))
5771 goto error_return;
5772
5773 if (sections != NULL)
5774 free (sections);
5775 if (isymbuf != NULL
5776 && symtab_hdr->contents != (unsigned char *) isymbuf)
5777 free (isymbuf);
5778 if (elf_section_data (input_section)->relocs != internal_relocs)
5779 free (internal_relocs);
5780 }
5781
5782 return data;
5783
5784 error_return:
5785 if (sections != NULL)
5786 free (sections);
5787 if (isymbuf != NULL
5788 && symtab_hdr->contents != (unsigned char *) isymbuf)
5789 free (isymbuf);
5790 if (internal_relocs != NULL
5791 && elf_section_data (input_section)->relocs != internal_relocs)
5792 free (internal_relocs);
5793 return NULL;
5794 }
5795
5796 /* Return the base VMA address which should be subtracted from real addresses
5797 when resolving @dtpoff relocation.
5798 This is PT_TLS segment p_vaddr. */
5799
5800 static bfd_vma
dtpoff_base(struct bfd_link_info * info)5801 dtpoff_base (struct bfd_link_info *info)
5802 {
5803 /* If tls_sec is NULL, we should have signalled an error already. */
5804 if (elf_hash_table (info)->tls_sec == NULL)
5805 return 0;
5806 return elf_hash_table (info)->tls_sec->vma;
5807 }
5808
5809 /* Return the relocation value for R_SH_TLS_TPOFF32.. */
5810
5811 static bfd_vma
tpoff(struct bfd_link_info * info,bfd_vma address)5812 tpoff (struct bfd_link_info *info, bfd_vma address)
5813 {
5814 /* If tls_sec is NULL, we should have signalled an error already. */
5815 if (elf_hash_table (info)->tls_sec == NULL)
5816 return 0;
5817 /* SH TLS ABI is variant I and static TLS block start just after tcbhead
5818 structure which has 2 pointer fields. */
5819 return (address - elf_hash_table (info)->tls_sec->vma
5820 + align_power ((bfd_vma) 8,
5821 elf_hash_table (info)->tls_sec->alignment_power));
5822 }
5823
5824 static asection *
sh_elf_gc_mark_hook(asection * sec,struct bfd_link_info * info ATTRIBUTE_UNUSED,Elf_Internal_Rela * rel,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)5825 sh_elf_gc_mark_hook (asection *sec,
5826 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5827 Elf_Internal_Rela *rel, struct elf_link_hash_entry *h,
5828 Elf_Internal_Sym *sym)
5829 {
5830 if (h != NULL)
5831 {
5832 switch (ELF32_R_TYPE (rel->r_info))
5833 {
5834 case R_SH_GNU_VTINHERIT:
5835 case R_SH_GNU_VTENTRY:
5836 break;
5837
5838 default:
5839 #ifdef INCLUDE_SHMEDIA
5840 while (h->root.type == bfd_link_hash_indirect
5841 && h->root.u.i.link)
5842 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5843 #endif
5844 switch (h->root.type)
5845 {
5846 case bfd_link_hash_defined:
5847 case bfd_link_hash_defweak:
5848 return h->root.u.def.section;
5849
5850 case bfd_link_hash_common:
5851 return h->root.u.c.p->section;
5852
5853 default:
5854 break;
5855 }
5856 }
5857 }
5858 else
5859 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
5860
5861 return NULL;
5862 }
5863
5864 /* Update the got entry reference counts for the section being removed. */
5865
5866 static bfd_boolean
sh_elf_gc_sweep_hook(bfd * abfd,struct bfd_link_info * info,asection * sec,const Elf_Internal_Rela * relocs)5867 sh_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
5868 asection *sec, const Elf_Internal_Rela *relocs)
5869 {
5870 Elf_Internal_Shdr *symtab_hdr;
5871 struct elf_link_hash_entry **sym_hashes;
5872 bfd_signed_vma *local_got_refcounts;
5873 const Elf_Internal_Rela *rel, *relend;
5874
5875 elf_section_data (sec)->local_dynrel = NULL;
5876
5877 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5878 sym_hashes = elf_sym_hashes (abfd);
5879 local_got_refcounts = elf_local_got_refcounts (abfd);
5880
5881 relend = relocs + sec->reloc_count;
5882 for (rel = relocs; rel < relend; rel++)
5883 {
5884 unsigned long r_symndx;
5885 unsigned int r_type;
5886 struct elf_link_hash_entry *h = NULL;
5887 #ifdef INCLUDE_SHMEDIA
5888 int seen_stt_datalabel = 0;
5889 #endif
5890
5891 r_symndx = ELF32_R_SYM (rel->r_info);
5892 if (r_symndx >= symtab_hdr->sh_info)
5893 {
5894 struct elf_sh_link_hash_entry *eh;
5895 struct elf_sh_dyn_relocs **pp;
5896 struct elf_sh_dyn_relocs *p;
5897
5898 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5899 while (h->root.type == bfd_link_hash_indirect
5900 || h->root.type == bfd_link_hash_warning)
5901 {
5902 #ifdef INCLUDE_SHMEDIA
5903 seen_stt_datalabel |= h->type == STT_DATALABEL;
5904 #endif
5905 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5906 }
5907 eh = (struct elf_sh_link_hash_entry *) h;
5908 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5909 if (p->sec == sec)
5910 {
5911 /* Everything must go for SEC. */
5912 *pp = p->next;
5913 break;
5914 }
5915 }
5916
5917 r_type = ELF32_R_TYPE (rel->r_info);
5918 switch (sh_elf_optimized_tls_reloc (info, r_type, h != NULL))
5919 {
5920 case R_SH_TLS_LD_32:
5921 if (sh_elf_hash_table (info)->tls_ldm_got.refcount > 0)
5922 sh_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
5923 break;
5924
5925 case R_SH_GOT32:
5926 case R_SH_GOTOFF:
5927 case R_SH_GOTPC:
5928 #ifdef INCLUDE_SHMEDIA
5929 case R_SH_GOT_LOW16:
5930 case R_SH_GOT_MEDLOW16:
5931 case R_SH_GOT_MEDHI16:
5932 case R_SH_GOT_HI16:
5933 case R_SH_GOT10BY4:
5934 case R_SH_GOT10BY8:
5935 case R_SH_GOTOFF_LOW16:
5936 case R_SH_GOTOFF_MEDLOW16:
5937 case R_SH_GOTOFF_MEDHI16:
5938 case R_SH_GOTOFF_HI16:
5939 case R_SH_GOTPC_LOW16:
5940 case R_SH_GOTPC_MEDLOW16:
5941 case R_SH_GOTPC_MEDHI16:
5942 case R_SH_GOTPC_HI16:
5943 #endif
5944 case R_SH_TLS_GD_32:
5945 case R_SH_TLS_IE_32:
5946 if (h != NULL)
5947 {
5948 #ifdef INCLUDE_SHMEDIA
5949 if (seen_stt_datalabel)
5950 {
5951 struct elf_sh_link_hash_entry *eh;
5952 eh = (struct elf_sh_link_hash_entry *) h;
5953 if (eh->datalabel_got.refcount > 0)
5954 eh->datalabel_got.refcount -= 1;
5955 }
5956 else
5957 #endif
5958 if (h->got.refcount > 0)
5959 h->got.refcount -= 1;
5960 }
5961 else if (local_got_refcounts != NULL)
5962 {
5963 #ifdef INCLUDE_SHMEDIA
5964 if (rel->r_addend & 1)
5965 {
5966 if (local_got_refcounts[symtab_hdr->sh_info + r_symndx] > 0)
5967 local_got_refcounts[symtab_hdr->sh_info + r_symndx] -= 1;
5968 }
5969 else
5970 #endif
5971 if (local_got_refcounts[r_symndx] > 0)
5972 local_got_refcounts[r_symndx] -= 1;
5973 }
5974 break;
5975
5976 case R_SH_DIR32:
5977 case R_SH_REL32:
5978 if (info->shared)
5979 break;
5980 /* Fall thru */
5981
5982 case R_SH_PLT32:
5983 #ifdef INCLUDE_SHMEDIA
5984 case R_SH_PLT_LOW16:
5985 case R_SH_PLT_MEDLOW16:
5986 case R_SH_PLT_MEDHI16:
5987 case R_SH_PLT_HI16:
5988 #endif
5989 if (h != NULL)
5990 {
5991 if (h->plt.refcount > 0)
5992 h->plt.refcount -= 1;
5993 }
5994 break;
5995
5996 case R_SH_GOTPLT32:
5997 #ifdef INCLUDE_SHMEDIA
5998 case R_SH_GOTPLT_LOW16:
5999 case R_SH_GOTPLT_MEDLOW16:
6000 case R_SH_GOTPLT_MEDHI16:
6001 case R_SH_GOTPLT_HI16:
6002 case R_SH_GOTPLT10BY4:
6003 case R_SH_GOTPLT10BY8:
6004 #endif
6005 if (h != NULL)
6006 {
6007 struct elf_sh_link_hash_entry *eh;
6008 eh = (struct elf_sh_link_hash_entry *) h;
6009 if (eh->gotplt_refcount > 0)
6010 {
6011 eh->gotplt_refcount -= 1;
6012 if (h->plt.refcount > 0)
6013 h->plt.refcount -= 1;
6014 }
6015 #ifdef INCLUDE_SHMEDIA
6016 else if (seen_stt_datalabel)
6017 {
6018 if (eh->datalabel_got.refcount > 0)
6019 eh->datalabel_got.refcount -= 1;
6020 }
6021 #endif
6022 else if (h->got.refcount > 0)
6023 h->got.refcount -= 1;
6024 }
6025 else if (local_got_refcounts != NULL)
6026 {
6027 #ifdef INCLUDE_SHMEDIA
6028 if (rel->r_addend & 1)
6029 {
6030 if (local_got_refcounts[symtab_hdr->sh_info + r_symndx] > 0)
6031 local_got_refcounts[symtab_hdr->sh_info + r_symndx] -= 1;
6032 }
6033 else
6034 #endif
6035 if (local_got_refcounts[r_symndx] > 0)
6036 local_got_refcounts[r_symndx] -= 1;
6037 }
6038 break;
6039
6040 default:
6041 break;
6042 }
6043 }
6044
6045 return TRUE;
6046 }
6047
6048 /* Copy the extra info we tack onto an elf_link_hash_entry. */
6049
6050 static void
sh_elf_copy_indirect_symbol(const struct elf_backend_data * bed,struct elf_link_hash_entry * dir,struct elf_link_hash_entry * ind)6051 sh_elf_copy_indirect_symbol (const struct elf_backend_data *bed,
6052 struct elf_link_hash_entry *dir,
6053 struct elf_link_hash_entry *ind)
6054 {
6055 struct elf_sh_link_hash_entry *edir, *eind;
6056 #ifdef INCLUDE_SHMEDIA
6057 bfd_signed_vma tmp;
6058 #endif
6059
6060 edir = (struct elf_sh_link_hash_entry *) dir;
6061 eind = (struct elf_sh_link_hash_entry *) ind;
6062
6063 if (eind->dyn_relocs != NULL)
6064 {
6065 if (edir->dyn_relocs != NULL)
6066 {
6067 struct elf_sh_dyn_relocs **pp;
6068 struct elf_sh_dyn_relocs *p;
6069
6070 BFD_ASSERT (ind->root.type != bfd_link_hash_indirect);
6071
6072 /* Add reloc counts against the weak sym to the strong sym
6073 list. Merge any entries against the same section. */
6074 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
6075 {
6076 struct elf_sh_dyn_relocs *q;
6077
6078 for (q = edir->dyn_relocs; q != NULL; q = q->next)
6079 if (q->sec == p->sec)
6080 {
6081 q->pc_count += p->pc_count;
6082 q->count += p->count;
6083 *pp = p->next;
6084 break;
6085 }
6086 if (q == NULL)
6087 pp = &p->next;
6088 }
6089 *pp = edir->dyn_relocs;
6090 }
6091
6092 edir->dyn_relocs = eind->dyn_relocs;
6093 eind->dyn_relocs = NULL;
6094 }
6095 edir->gotplt_refcount = eind->gotplt_refcount;
6096 eind->gotplt_refcount = 0;
6097 #ifdef INCLUDE_SHMEDIA
6098 tmp = edir->datalabel_got.refcount;
6099 if (tmp < 1)
6100 {
6101 edir->datalabel_got.refcount = eind->datalabel_got.refcount;
6102 eind->datalabel_got.refcount = tmp;
6103 }
6104 else
6105 BFD_ASSERT (eind->datalabel_got.refcount < 1);
6106 #endif
6107
6108 if (ind->root.type == bfd_link_hash_indirect
6109 && dir->got.refcount <= 0)
6110 {
6111 edir->tls_type = eind->tls_type;
6112 eind->tls_type = GOT_UNKNOWN;
6113 }
6114
6115 if (ind->root.type != bfd_link_hash_indirect
6116 && dir->dynamic_adjusted)
6117 {
6118 /* If called to transfer flags for a weakdef during processing
6119 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
6120 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
6121 dir->ref_dynamic |= ind->ref_dynamic;
6122 dir->ref_regular |= ind->ref_regular;
6123 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
6124 dir->needs_plt |= ind->needs_plt;
6125 }
6126 else
6127 _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
6128 }
6129
6130 static int
sh_elf_optimized_tls_reloc(struct bfd_link_info * info,int r_type,int is_local)6131 sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type,
6132 int is_local)
6133 {
6134 if (info->shared)
6135 return r_type;
6136
6137 switch (r_type)
6138 {
6139 case R_SH_TLS_GD_32:
6140 case R_SH_TLS_IE_32:
6141 if (is_local)
6142 return R_SH_TLS_LE_32;
6143 return R_SH_TLS_IE_32;
6144 case R_SH_TLS_LD_32:
6145 return R_SH_TLS_LE_32;
6146 }
6147
6148 return r_type;
6149 }
6150
6151 /* Look through the relocs for a section during the first phase.
6152 Since we don't do .gots or .plts, we just need to consider the
6153 virtual table relocs for gc. */
6154
6155 static bfd_boolean
sh_elf_check_relocs(bfd * abfd,struct bfd_link_info * info,asection * sec,const Elf_Internal_Rela * relocs)6156 sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
6157 const Elf_Internal_Rela *relocs)
6158 {
6159 Elf_Internal_Shdr *symtab_hdr;
6160 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
6161 struct elf_sh_link_hash_table *htab;
6162 const Elf_Internal_Rela *rel;
6163 const Elf_Internal_Rela *rel_end;
6164 bfd_vma *local_got_offsets;
6165 asection *sgot;
6166 asection *srelgot;
6167 asection *sreloc;
6168 unsigned int r_type;
6169 int tls_type, old_tls_type;
6170
6171 sgot = NULL;
6172 srelgot = NULL;
6173 sreloc = NULL;
6174
6175 if (info->relocatable)
6176 return TRUE;
6177
6178 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6179 sym_hashes = elf_sym_hashes (abfd);
6180 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
6181 if (!elf_bad_symtab (abfd))
6182 sym_hashes_end -= symtab_hdr->sh_info;
6183
6184 htab = sh_elf_hash_table (info);
6185 local_got_offsets = elf_local_got_offsets (abfd);
6186
6187 rel_end = relocs + sec->reloc_count;
6188 for (rel = relocs; rel < rel_end; rel++)
6189 {
6190 struct elf_link_hash_entry *h;
6191 unsigned long r_symndx;
6192 #ifdef INCLUDE_SHMEDIA
6193 int seen_stt_datalabel = 0;
6194 #endif
6195
6196 r_symndx = ELF32_R_SYM (rel->r_info);
6197 r_type = ELF32_R_TYPE (rel->r_info);
6198
6199 if (r_symndx < symtab_hdr->sh_info)
6200 h = NULL;
6201 else
6202 {
6203 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6204 while (h->root.type == bfd_link_hash_indirect
6205 || h->root.type == bfd_link_hash_warning)
6206 {
6207 #ifdef INCLUDE_SHMEDIA
6208 seen_stt_datalabel |= h->type == STT_DATALABEL;
6209 #endif
6210 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6211 }
6212 }
6213
6214 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
6215 if (! info->shared
6216 && r_type == R_SH_TLS_IE_32
6217 && h != NULL
6218 && h->root.type != bfd_link_hash_undefined
6219 && h->root.type != bfd_link_hash_undefweak
6220 && (h->dynindx == -1
6221 || h->def_regular))
6222 r_type = R_SH_TLS_LE_32;
6223
6224 /* Some relocs require a global offset table. */
6225 if (htab->sgot == NULL)
6226 {
6227 switch (r_type)
6228 {
6229 case R_SH_GOTPLT32:
6230 case R_SH_GOT32:
6231 case R_SH_GOTOFF:
6232 case R_SH_GOTPC:
6233 #ifdef INCLUDE_SHMEDIA
6234 case R_SH_GOTPLT_LOW16:
6235 case R_SH_GOTPLT_MEDLOW16:
6236 case R_SH_GOTPLT_MEDHI16:
6237 case R_SH_GOTPLT_HI16:
6238 case R_SH_GOTPLT10BY4:
6239 case R_SH_GOTPLT10BY8:
6240 case R_SH_GOT_LOW16:
6241 case R_SH_GOT_MEDLOW16:
6242 case R_SH_GOT_MEDHI16:
6243 case R_SH_GOT_HI16:
6244 case R_SH_GOT10BY4:
6245 case R_SH_GOT10BY8:
6246 case R_SH_GOTOFF_LOW16:
6247 case R_SH_GOTOFF_MEDLOW16:
6248 case R_SH_GOTOFF_MEDHI16:
6249 case R_SH_GOTOFF_HI16:
6250 case R_SH_GOTPC_LOW16:
6251 case R_SH_GOTPC_MEDLOW16:
6252 case R_SH_GOTPC_MEDHI16:
6253 case R_SH_GOTPC_HI16:
6254 #endif
6255 case R_SH_TLS_GD_32:
6256 case R_SH_TLS_LD_32:
6257 case R_SH_TLS_IE_32:
6258 if (htab->sgot == NULL)
6259 {
6260 if (htab->root.dynobj == NULL)
6261 htab->root.dynobj = abfd;
6262 if (!create_got_section (htab->root.dynobj, info))
6263 return FALSE;
6264 }
6265 break;
6266
6267 default:
6268 break;
6269 }
6270 }
6271
6272 switch (r_type)
6273 {
6274 /* This relocation describes the C++ object vtable hierarchy.
6275 Reconstruct it for later use during GC. */
6276 case R_SH_GNU_VTINHERIT:
6277 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6278 return FALSE;
6279 break;
6280
6281 /* This relocation describes which C++ vtable entries are actually
6282 used. Record for later use during GC. */
6283 case R_SH_GNU_VTENTRY:
6284 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6285 return FALSE;
6286 break;
6287
6288 case R_SH_TLS_IE_32:
6289 if (info->shared)
6290 info->flags |= DF_STATIC_TLS;
6291
6292 /* FALLTHROUGH */
6293 force_got:
6294 case R_SH_TLS_GD_32:
6295 case R_SH_GOT32:
6296 #ifdef INCLUDE_SHMEDIA
6297 case R_SH_GOT_LOW16:
6298 case R_SH_GOT_MEDLOW16:
6299 case R_SH_GOT_MEDHI16:
6300 case R_SH_GOT_HI16:
6301 case R_SH_GOT10BY4:
6302 case R_SH_GOT10BY8:
6303 #endif
6304 switch (r_type)
6305 {
6306 default:
6307 tls_type = GOT_NORMAL;
6308 break;
6309 case R_SH_TLS_GD_32:
6310 tls_type = GOT_TLS_GD;
6311 break;
6312 case R_SH_TLS_IE_32:
6313 tls_type = GOT_TLS_IE;
6314 break;
6315 }
6316
6317 if (h != NULL)
6318 {
6319 #ifdef INCLUDE_SHMEDIA
6320 if (seen_stt_datalabel)
6321 {
6322 struct elf_sh_link_hash_entry *eh
6323 = (struct elf_sh_link_hash_entry *) h;
6324
6325 eh->datalabel_got.refcount += 1;
6326 }
6327 else
6328 #endif
6329 h->got.refcount += 1;
6330 old_tls_type = sh_elf_hash_entry (h)->tls_type;
6331 }
6332 else
6333 {
6334 bfd_signed_vma *local_got_refcounts;
6335
6336 /* This is a global offset table entry for a local
6337 symbol. */
6338 local_got_refcounts = elf_local_got_refcounts (abfd);
6339 if (local_got_refcounts == NULL)
6340 {
6341 bfd_size_type size;
6342
6343 size = symtab_hdr->sh_info;
6344 size *= sizeof (bfd_signed_vma);
6345 #ifdef INCLUDE_SHMEDIA
6346 /* Reserve space for both the datalabel and
6347 codelabel local GOT offsets. */
6348 size *= 2;
6349 #endif
6350 size += symtab_hdr->sh_info;
6351 local_got_refcounts = ((bfd_signed_vma *)
6352 bfd_zalloc (abfd, size));
6353 if (local_got_refcounts == NULL)
6354 return FALSE;
6355 elf_local_got_refcounts (abfd) = local_got_refcounts;
6356 #ifdef INCLUDE_SHMEDIA
6357 /* Take care of both the datalabel and codelabel local
6358 GOT offsets. */
6359 sh_elf_local_got_tls_type (abfd)
6360 = (char *) (local_got_refcounts + 2 * symtab_hdr->sh_info);
6361 #else
6362 sh_elf_local_got_tls_type (abfd)
6363 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
6364 #endif
6365 }
6366 #ifdef INCLUDE_SHMEDIA
6367 if (rel->r_addend & 1)
6368 local_got_refcounts[symtab_hdr->sh_info + r_symndx] += 1;
6369 else
6370 #endif
6371 local_got_refcounts[r_symndx] += 1;
6372 old_tls_type = sh_elf_local_got_tls_type (abfd) [r_symndx];
6373 }
6374
6375 /* If a TLS symbol is accessed using IE at least once,
6376 there is no point to use dynamic model for it. */
6377 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
6378 && (old_tls_type != GOT_TLS_GD || tls_type != GOT_TLS_IE))
6379 {
6380 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
6381 tls_type = GOT_TLS_IE;
6382 else
6383 {
6384 (*_bfd_error_handler)
6385 (_("%B: `%s' accessed both as normal and thread local symbol"),
6386 abfd, h->root.root.string);
6387 return FALSE;
6388 }
6389 }
6390
6391 if (old_tls_type != tls_type)
6392 {
6393 if (h != NULL)
6394 sh_elf_hash_entry (h)->tls_type = tls_type;
6395 else
6396 sh_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
6397 }
6398
6399 break;
6400
6401 case R_SH_TLS_LD_32:
6402 sh_elf_hash_table(info)->tls_ldm_got.refcount += 1;
6403 break;
6404
6405 case R_SH_GOTPLT32:
6406 #ifdef INCLUDE_SHMEDIA
6407 case R_SH_GOTPLT_LOW16:
6408 case R_SH_GOTPLT_MEDLOW16:
6409 case R_SH_GOTPLT_MEDHI16:
6410 case R_SH_GOTPLT_HI16:
6411 case R_SH_GOTPLT10BY4:
6412 case R_SH_GOTPLT10BY8:
6413 #endif
6414 /* If this is a local symbol, we resolve it directly without
6415 creating a procedure linkage table entry. */
6416
6417 if (h == NULL
6418 || h->forced_local
6419 || ! info->shared
6420 || info->symbolic
6421 || h->dynindx == -1)
6422 goto force_got;
6423
6424 h->needs_plt = 1;
6425 h->plt.refcount += 1;
6426 ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1;
6427
6428 break;
6429
6430 case R_SH_PLT32:
6431 #ifdef INCLUDE_SHMEDIA
6432 case R_SH_PLT_LOW16:
6433 case R_SH_PLT_MEDLOW16:
6434 case R_SH_PLT_MEDHI16:
6435 case R_SH_PLT_HI16:
6436 #endif
6437 /* This symbol requires a procedure linkage table entry. We
6438 actually build the entry in adjust_dynamic_symbol,
6439 because this might be a case of linking PIC code which is
6440 never referenced by a dynamic object, in which case we
6441 don't need to generate a procedure linkage table entry
6442 after all. */
6443
6444 /* If this is a local symbol, we resolve it directly without
6445 creating a procedure linkage table entry. */
6446 if (h == NULL)
6447 continue;
6448
6449 if (h->forced_local)
6450 break;
6451
6452 h->needs_plt = 1;
6453 h->plt.refcount += 1;
6454 break;
6455
6456 case R_SH_DIR32:
6457 case R_SH_REL32:
6458 #ifdef INCLUDE_SHMEDIA
6459 case R_SH_IMM_LOW16_PCREL:
6460 case R_SH_IMM_MEDLOW16_PCREL:
6461 case R_SH_IMM_MEDHI16_PCREL:
6462 case R_SH_IMM_HI16_PCREL:
6463 #endif
6464 if (h != NULL && ! info->shared)
6465 {
6466 h->non_got_ref = 1;
6467 h->plt.refcount += 1;
6468 }
6469
6470 /* If we are creating a shared library, and this is a reloc
6471 against a global symbol, or a non PC relative reloc
6472 against a local symbol, then we need to copy the reloc
6473 into the shared library. However, if we are linking with
6474 -Bsymbolic, we do not need to copy a reloc against a
6475 global symbol which is defined in an object we are
6476 including in the link (i.e., DEF_REGULAR is set). At
6477 this point we have not seen all the input files, so it is
6478 possible that DEF_REGULAR is not set now but will be set
6479 later (it is never cleared). We account for that
6480 possibility below by storing information in the
6481 dyn_relocs field of the hash table entry. A similar
6482 situation occurs when creating shared libraries and symbol
6483 visibility changes render the symbol local.
6484
6485 If on the other hand, we are creating an executable, we
6486 may need to keep relocations for symbols satisfied by a
6487 dynamic library if we manage to avoid copy relocs for the
6488 symbol. */
6489 if ((info->shared
6490 && (sec->flags & SEC_ALLOC) != 0
6491 && (r_type != R_SH_REL32
6492 || (h != NULL
6493 && (! info->symbolic
6494 || h->root.type == bfd_link_hash_defweak
6495 || !h->def_regular))))
6496 || (! info->shared
6497 && (sec->flags & SEC_ALLOC) != 0
6498 && h != NULL
6499 && (h->root.type == bfd_link_hash_defweak
6500 || !h->def_regular)))
6501 {
6502 struct elf_sh_dyn_relocs *p;
6503 struct elf_sh_dyn_relocs **head;
6504
6505 if (htab->root.dynobj == NULL)
6506 htab->root.dynobj = abfd;
6507
6508 /* When creating a shared object, we must copy these
6509 reloc types into the output file. We create a reloc
6510 section in dynobj and make room for this reloc. */
6511 if (sreloc == NULL)
6512 {
6513 const char *name;
6514
6515 name = (bfd_elf_string_from_elf_section
6516 (abfd,
6517 elf_elfheader (abfd)->e_shstrndx,
6518 elf_section_data (sec)->rel_hdr.sh_name));
6519 if (name == NULL)
6520 return FALSE;
6521
6522 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
6523 && strcmp (bfd_get_section_name (abfd, sec),
6524 name + 5) == 0);
6525
6526 sreloc = bfd_get_section_by_name (htab->root.dynobj, name);
6527 if (sreloc == NULL)
6528 {
6529 flagword flags;
6530
6531 flags = (SEC_HAS_CONTENTS | SEC_READONLY
6532 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
6533 if ((sec->flags & SEC_ALLOC) != 0)
6534 flags |= SEC_ALLOC | SEC_LOAD;
6535 sreloc = bfd_make_section_with_flags (htab->root.dynobj,
6536 name,
6537 flags);
6538 if (sreloc == NULL
6539 || ! bfd_set_section_alignment (htab->root.dynobj,
6540 sreloc, 2))
6541 return FALSE;
6542 }
6543 elf_section_data (sec)->sreloc = sreloc;
6544 }
6545
6546 /* If this is a global symbol, we count the number of
6547 relocations we need for this symbol. */
6548 if (h != NULL)
6549 head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs;
6550 else
6551 {
6552 asection *s;
6553
6554 /* Track dynamic relocs needed for local syms too. */
6555 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
6556 sec, r_symndx);
6557 if (s == NULL)
6558 return FALSE;
6559
6560 head = ((struct elf_sh_dyn_relocs **)
6561 &elf_section_data (s)->local_dynrel);
6562 }
6563
6564 p = *head;
6565 if (p == NULL || p->sec != sec)
6566 {
6567 bfd_size_type amt = sizeof (*p);
6568 p = bfd_alloc (htab->root.dynobj, amt);
6569 if (p == NULL)
6570 return FALSE;
6571 p->next = *head;
6572 *head = p;
6573 p->sec = sec;
6574 p->count = 0;
6575 p->pc_count = 0;
6576 }
6577
6578 p->count += 1;
6579 if (r_type == R_SH_REL32
6580 #ifdef INCLUDE_SHMEDIA
6581 || r_type == R_SH_IMM_LOW16_PCREL
6582 || r_type == R_SH_IMM_MEDLOW16_PCREL
6583 || r_type == R_SH_IMM_MEDHI16_PCREL
6584 || r_type == R_SH_IMM_HI16_PCREL
6585 #endif
6586 )
6587 p->pc_count += 1;
6588 }
6589
6590 break;
6591
6592 case R_SH_TLS_LE_32:
6593 if (info->shared)
6594 {
6595 (*_bfd_error_handler)
6596 (_("%B: TLS local exec code cannot be linked into shared objects"),
6597 abfd);
6598 return FALSE;
6599 }
6600
6601 break;
6602
6603 case R_SH_TLS_LDO_32:
6604 /* Nothing to do. */
6605 break;
6606
6607 default:
6608 break;
6609 }
6610 }
6611
6612 return TRUE;
6613 }
6614
6615 #ifndef sh_elf_set_mach_from_flags
6616 static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE };
6617
6618 static bfd_boolean
sh_elf_set_mach_from_flags(bfd * abfd)6619 sh_elf_set_mach_from_flags (bfd *abfd)
6620 {
6621 flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK;
6622
6623 if (flags >= sizeof(sh_ef_bfd_table))
6624 return FALSE;
6625
6626 if (sh_ef_bfd_table[flags] == 0)
6627 return FALSE;
6628
6629 bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]);
6630
6631 return TRUE;
6632 }
6633
6634
6635 /* Reverse table lookup for sh_ef_bfd_table[].
6636 Given a bfd MACH value from archures.c
6637 return the equivalent ELF flags from the table.
6638 Return -1 if no match is found. */
6639
6640 int
sh_elf_get_flags_from_mach(unsigned long mach)6641 sh_elf_get_flags_from_mach (unsigned long mach)
6642 {
6643 int i = ARRAY_SIZE (sh_ef_bfd_table);
6644
6645 for (; i>0; i--)
6646 if (sh_ef_bfd_table[i] == mach)
6647 return i;
6648
6649 /* shouldn't get here */
6650 BFD_FAIL();
6651
6652 return -1;
6653 }
6654 #endif /* not sh_elf_set_mach_from_flags */
6655
6656 #ifndef sh_elf_set_private_flags
6657 /* Function to keep SH specific file flags. */
6658
6659 static bfd_boolean
sh_elf_set_private_flags(bfd * abfd,flagword flags)6660 sh_elf_set_private_flags (bfd *abfd, flagword flags)
6661 {
6662 BFD_ASSERT (! elf_flags_init (abfd)
6663 || elf_elfheader (abfd)->e_flags == flags);
6664
6665 elf_elfheader (abfd)->e_flags = flags;
6666 elf_flags_init (abfd) = TRUE;
6667 return sh_elf_set_mach_from_flags (abfd);
6668 }
6669 #endif /* not sh_elf_set_private_flags */
6670
6671 #ifndef sh_elf_copy_private_data
6672 /* Copy backend specific data from one object module to another */
6673
6674 static bfd_boolean
sh_elf_copy_private_data(bfd * ibfd,bfd * obfd)6675 sh_elf_copy_private_data (bfd * ibfd, bfd * obfd)
6676 {
6677 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6678 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6679 return TRUE;
6680
6681 return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
6682 }
6683 #endif /* not sh_elf_copy_private_data */
6684
6685 #ifndef sh_elf_merge_private_data
6686
6687 /* This function returns the ELF architecture number that
6688 corresponds to the given arch_sh* flags. */
6689
6690 int
sh_find_elf_flags(unsigned int arch_set)6691 sh_find_elf_flags (unsigned int arch_set)
6692 {
6693 extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
6694 unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set);
6695
6696 return sh_elf_get_flags_from_mach (bfd_mach);
6697 }
6698
6699 /* This routine initialises the elf flags when required and
6700 calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
6701
6702 static bfd_boolean
sh_elf_merge_private_data(bfd * ibfd,bfd * obfd)6703 sh_elf_merge_private_data (bfd *ibfd, bfd *obfd)
6704 {
6705 extern bfd_boolean sh_merge_bfd_arch (bfd *, bfd *);
6706
6707 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6708 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6709 return TRUE;
6710
6711 if (! elf_flags_init (obfd))
6712 {
6713 /* This happens when ld starts out with a 'blank' output file. */
6714 elf_flags_init (obfd) = TRUE;
6715 elf_elfheader (obfd)->e_flags = EF_SH1;
6716 sh_elf_set_mach_from_flags (obfd);
6717 }
6718
6719 if (! sh_merge_bfd_arch (ibfd, obfd))
6720 {
6721 _bfd_error_handler ("%B: uses instructions which are incompatible "
6722 "with instructions used in previous modules",
6723 ibfd);
6724 bfd_set_error (bfd_error_bad_value);
6725 return FALSE;
6726 }
6727
6728 elf_elfheader (obfd)->e_flags =
6729 sh_elf_get_flags_from_mach (bfd_get_mach (obfd));
6730
6731 return TRUE;
6732 }
6733 #endif /* not sh_elf_merge_private_data */
6734
6735 /* Override the generic function because we need to store sh_elf_obj_tdata
6736 as the specific tdata. We set also the machine architecture from flags
6737 here. */
6738
6739 static bfd_boolean
sh_elf_object_p(bfd * abfd)6740 sh_elf_object_p (bfd *abfd)
6741 {
6742 return sh_elf_set_mach_from_flags (abfd);
6743 }
6744
6745 /* Finish up dynamic symbol handling. We set the contents of various
6746 dynamic sections here. */
6747
6748 static bfd_boolean
sh_elf_finish_dynamic_symbol(bfd * output_bfd,struct bfd_link_info * info,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)6749 sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
6750 struct elf_link_hash_entry *h,
6751 Elf_Internal_Sym *sym)
6752 {
6753 struct elf_sh_link_hash_table *htab;
6754
6755 htab = sh_elf_hash_table (info);
6756
6757 if (h->plt.offset != (bfd_vma) -1)
6758 {
6759 asection *splt;
6760 asection *sgot;
6761 asection *srel;
6762
6763 bfd_vma plt_index;
6764 bfd_vma got_offset;
6765 Elf_Internal_Rela rel;
6766 bfd_byte *loc;
6767
6768 /* This symbol has an entry in the procedure linkage table. Set
6769 it up. */
6770
6771 BFD_ASSERT (h->dynindx != -1);
6772
6773 splt = htab->splt;
6774 sgot = htab->sgotplt;
6775 srel = htab->srelplt;
6776 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
6777
6778 /* Get the index in the procedure linkage table which
6779 corresponds to this symbol. This is the index of this symbol
6780 in all the symbols for which we are making plt entries. The
6781 first entry in the procedure linkage table is reserved. */
6782 plt_index = h->plt.offset / elf_sh_sizeof_plt (info) - 1;
6783
6784 /* Get the offset into the .got table of the entry that
6785 corresponds to this function. Each .got entry is 4 bytes.
6786 The first three are reserved. */
6787 got_offset = (plt_index + 3) * 4;
6788
6789 #ifdef GOT_BIAS
6790 if (info->shared)
6791 got_offset -= GOT_BIAS;
6792 #endif
6793
6794 /* Fill in the entry in the procedure linkage table. */
6795 if (! info->shared)
6796 {
6797 if (elf_sh_plt_entry == NULL)
6798 {
6799 elf_sh_plt_entry = (bfd_big_endian (output_bfd) ?
6800 elf_sh_plt_entry_be : elf_sh_plt_entry_le);
6801 }
6802 memcpy (splt->contents + h->plt.offset, elf_sh_plt_entry,
6803 elf_sh_sizeof_plt (info));
6804 #ifdef INCLUDE_SHMEDIA
6805 movi_shori_putval (output_bfd,
6806 (sgot->output_section->vma
6807 + sgot->output_offset
6808 + got_offset),
6809 (splt->contents + h->plt.offset
6810 + elf_sh_plt_symbol_offset (info)));
6811
6812 /* Set bottom bit because its for a branch to SHmedia */
6813 movi_shori_putval (output_bfd,
6814 (splt->output_section->vma + splt->output_offset)
6815 | 1,
6816 (splt->contents + h->plt.offset
6817 + elf_sh_plt_plt0_offset (info)));
6818 #else
6819 bfd_put_32 (output_bfd,
6820 (sgot->output_section->vma
6821 + sgot->output_offset
6822 + got_offset),
6823 (splt->contents + h->plt.offset
6824 + elf_sh_plt_symbol_offset (info)));
6825
6826 bfd_put_32 (output_bfd,
6827 (splt->output_section->vma + splt->output_offset),
6828 (splt->contents + h->plt.offset
6829 + elf_sh_plt_plt0_offset (info)));
6830 #endif
6831 }
6832 else
6833 {
6834 if (elf_sh_pic_plt_entry == NULL)
6835 {
6836 elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ?
6837 elf_sh_pic_plt_entry_be :
6838 elf_sh_pic_plt_entry_le);
6839 }
6840 memcpy (splt->contents + h->plt.offset, elf_sh_pic_plt_entry,
6841 elf_sh_sizeof_plt (info));
6842 #ifdef INCLUDE_SHMEDIA
6843 movi_shori_putval (output_bfd, got_offset,
6844 (splt->contents + h->plt.offset
6845 + elf_sh_plt_symbol_offset (info)));
6846 #else
6847 bfd_put_32 (output_bfd, got_offset,
6848 (splt->contents + h->plt.offset
6849 + elf_sh_plt_symbol_offset (info)));
6850 #endif
6851 }
6852
6853 #ifdef GOT_BIAS
6854 if (info->shared)
6855 got_offset += GOT_BIAS;
6856 #endif
6857
6858 #ifdef INCLUDE_SHMEDIA
6859 movi_shori_putval (output_bfd,
6860 plt_index * sizeof (Elf32_External_Rela),
6861 (splt->contents + h->plt.offset
6862 + elf_sh_plt_reloc_offset (info)));
6863 #else
6864 bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
6865 (splt->contents + h->plt.offset
6866 + elf_sh_plt_reloc_offset (info)));
6867 #endif
6868
6869 /* Fill in the entry in the global offset table. */
6870 bfd_put_32 (output_bfd,
6871 (splt->output_section->vma
6872 + splt->output_offset
6873 + h->plt.offset
6874 + elf_sh_plt_temp_offset (info)),
6875 sgot->contents + got_offset);
6876
6877 /* Fill in the entry in the .rela.plt section. */
6878 rel.r_offset = (sgot->output_section->vma
6879 + sgot->output_offset
6880 + got_offset);
6881 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
6882 rel.r_addend = 0;
6883 #ifdef GOT_BIAS
6884 rel.r_addend = GOT_BIAS;
6885 #endif
6886 loc = srel->contents + plt_index * sizeof (Elf32_External_Rela);
6887 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6888
6889 if (!h->def_regular)
6890 {
6891 /* Mark the symbol as undefined, rather than as defined in
6892 the .plt section. Leave the value alone. */
6893 sym->st_shndx = SHN_UNDEF;
6894 }
6895 }
6896
6897 if (h->got.offset != (bfd_vma) -1
6898 && sh_elf_hash_entry (h)->tls_type != GOT_TLS_GD
6899 && sh_elf_hash_entry (h)->tls_type != GOT_TLS_IE)
6900 {
6901 asection *sgot;
6902 asection *srel;
6903 Elf_Internal_Rela rel;
6904 bfd_byte *loc;
6905
6906 /* This symbol has an entry in the global offset table. Set it
6907 up. */
6908
6909 sgot = htab->sgot;
6910 srel = htab->srelgot;
6911 BFD_ASSERT (sgot != NULL && srel != NULL);
6912
6913 rel.r_offset = (sgot->output_section->vma
6914 + sgot->output_offset
6915 + (h->got.offset &~ (bfd_vma) 1));
6916
6917 /* If this is a static link, or it is a -Bsymbolic link and the
6918 symbol is defined locally or was forced to be local because
6919 of a version file, we just want to emit a RELATIVE reloc.
6920 The entry in the global offset table will already have been
6921 initialized in the relocate_section function. */
6922 if (info->shared
6923 && SYMBOL_REFERENCES_LOCAL (info, h))
6924 {
6925 rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
6926 rel.r_addend = (h->root.u.def.value
6927 + h->root.u.def.section->output_section->vma
6928 + h->root.u.def.section->output_offset);
6929 }
6930 else
6931 {
6932 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
6933 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
6934 rel.r_addend = 0;
6935 }
6936
6937 loc = srel->contents;
6938 loc += srel->reloc_count++ * sizeof (Elf32_External_Rela);
6939 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6940 }
6941
6942 #ifdef INCLUDE_SHMEDIA
6943 {
6944 struct elf_sh_link_hash_entry *eh;
6945
6946 eh = (struct elf_sh_link_hash_entry *) h;
6947 if (eh->datalabel_got.offset != (bfd_vma) -1)
6948 {
6949 asection *sgot;
6950 asection *srel;
6951 Elf_Internal_Rela rel;
6952 bfd_byte *loc;
6953
6954 /* This symbol has a datalabel entry in the global offset table.
6955 Set it up. */
6956
6957 sgot = htab->sgot;
6958 srel = htab->srelgot;
6959 BFD_ASSERT (sgot != NULL && srel != NULL);
6960
6961 rel.r_offset = (sgot->output_section->vma
6962 + sgot->output_offset
6963 + (eh->datalabel_got.offset &~ (bfd_vma) 1));
6964
6965 /* If this is a static link, or it is a -Bsymbolic link and the
6966 symbol is defined locally or was forced to be local because
6967 of a version file, we just want to emit a RELATIVE reloc.
6968 The entry in the global offset table will already have been
6969 initialized in the relocate_section function. */
6970 if (info->shared
6971 && SYMBOL_REFERENCES_LOCAL (info, h))
6972 {
6973 rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
6974 rel.r_addend = (h->root.u.def.value
6975 + h->root.u.def.section->output_section->vma
6976 + h->root.u.def.section->output_offset);
6977 }
6978 else
6979 {
6980 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents
6981 + eh->datalabel_got.offset);
6982 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
6983 rel.r_addend = 0;
6984 }
6985
6986 loc = srel->contents;
6987 loc += srel->reloc_count++ * sizeof (Elf32_External_Rela);
6988 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6989 }
6990 }
6991 #endif
6992
6993 if (h->needs_copy)
6994 {
6995 asection *s;
6996 Elf_Internal_Rela rel;
6997 bfd_byte *loc;
6998
6999 /* This symbol needs a copy reloc. Set it up. */
7000
7001 BFD_ASSERT (h->dynindx != -1
7002 && (h->root.type == bfd_link_hash_defined
7003 || h->root.type == bfd_link_hash_defweak));
7004
7005 s = bfd_get_section_by_name (h->root.u.def.section->owner,
7006 ".rela.bss");
7007 BFD_ASSERT (s != NULL);
7008
7009 rel.r_offset = (h->root.u.def.value
7010 + h->root.u.def.section->output_section->vma
7011 + h->root.u.def.section->output_offset);
7012 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
7013 rel.r_addend = 0;
7014 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
7015 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
7016 }
7017
7018 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
7019 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
7020 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
7021 sym->st_shndx = SHN_ABS;
7022
7023 return TRUE;
7024 }
7025
7026 /* Finish up the dynamic sections. */
7027
7028 static bfd_boolean
sh_elf_finish_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)7029 sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
7030 {
7031 struct elf_sh_link_hash_table *htab;
7032 asection *sgot;
7033 asection *sdyn;
7034
7035 htab = sh_elf_hash_table (info);
7036 sgot = htab->sgotplt;
7037 sdyn = bfd_get_section_by_name (htab->root.dynobj, ".dynamic");
7038
7039 if (htab->root.dynamic_sections_created)
7040 {
7041 asection *splt;
7042 Elf32_External_Dyn *dyncon, *dynconend;
7043
7044 BFD_ASSERT (sgot != NULL && sdyn != NULL);
7045
7046 dyncon = (Elf32_External_Dyn *) sdyn->contents;
7047 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
7048 for (; dyncon < dynconend; dyncon++)
7049 {
7050 Elf_Internal_Dyn dyn;
7051 asection *s;
7052 #ifdef INCLUDE_SHMEDIA
7053 const char *name;
7054 #endif
7055
7056 bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn);
7057
7058 switch (dyn.d_tag)
7059 {
7060 default:
7061 break;
7062
7063 #ifdef INCLUDE_SHMEDIA
7064 case DT_INIT:
7065 name = info->init_function;
7066 goto get_sym;
7067
7068 case DT_FINI:
7069 name = info->fini_function;
7070 get_sym:
7071 if (dyn.d_un.d_val != 0)
7072 {
7073 struct elf_link_hash_entry *h;
7074
7075 h = elf_link_hash_lookup (&htab->root, name,
7076 FALSE, FALSE, TRUE);
7077 if (h != NULL && (h->other & STO_SH5_ISA32))
7078 {
7079 dyn.d_un.d_val |= 1;
7080 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7081 }
7082 }
7083 break;
7084 #endif
7085
7086 case DT_PLTGOT:
7087 s = htab->sgot->output_section;
7088 goto get_vma;
7089
7090 case DT_JMPREL:
7091 s = htab->srelplt->output_section;
7092 get_vma:
7093 BFD_ASSERT (s != NULL);
7094 dyn.d_un.d_ptr = s->vma;
7095 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7096 break;
7097
7098 case DT_PLTRELSZ:
7099 s = htab->srelplt->output_section;
7100 BFD_ASSERT (s != NULL);
7101 dyn.d_un.d_val = s->size;
7102 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7103 break;
7104
7105 case DT_RELASZ:
7106 /* My reading of the SVR4 ABI indicates that the
7107 procedure linkage table relocs (DT_JMPREL) should be
7108 included in the overall relocs (DT_RELA). This is
7109 what Solaris does. However, UnixWare can not handle
7110 that case. Therefore, we override the DT_RELASZ entry
7111 here to make it not include the JMPREL relocs. Since
7112 the linker script arranges for .rela.plt to follow all
7113 other relocation sections, we don't have to worry
7114 about changing the DT_RELA entry. */
7115 if (htab->srelplt != NULL)
7116 {
7117 s = htab->srelplt->output_section;
7118 dyn.d_un.d_val -= s->size;
7119 }
7120 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7121 break;
7122 }
7123 }
7124
7125 /* Fill in the first entry in the procedure linkage table. */
7126 splt = htab->splt;
7127 if (splt && splt->size > 0)
7128 {
7129 if (info->shared)
7130 {
7131 if (elf_sh_pic_plt_entry == NULL)
7132 {
7133 elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ?
7134 elf_sh_pic_plt_entry_be :
7135 elf_sh_pic_plt_entry_le);
7136 }
7137 memcpy (splt->contents, elf_sh_pic_plt_entry,
7138 elf_sh_sizeof_plt (info));
7139 }
7140 else
7141 {
7142 if (elf_sh_plt0_entry == NULL)
7143 {
7144 elf_sh_plt0_entry = (bfd_big_endian (output_bfd) ?
7145 elf_sh_plt0_entry_be :
7146 elf_sh_plt0_entry_le);
7147 }
7148 memcpy (splt->contents, elf_sh_plt0_entry, PLT_ENTRY_SIZE);
7149 #ifdef INCLUDE_SHMEDIA
7150 movi_shori_putval (output_bfd,
7151 sgot->output_section->vma
7152 + sgot->output_offset,
7153 splt->contents
7154 + elf_sh_plt0_gotplt_offset (info));
7155 #else
7156 bfd_put_32 (output_bfd,
7157 sgot->output_section->vma + sgot->output_offset + 4,
7158 splt->contents + elf_sh_plt0_gotid_offset (info));
7159 bfd_put_32 (output_bfd,
7160 sgot->output_section->vma + sgot->output_offset + 8,
7161 splt->contents + elf_sh_plt0_linker_offset (info));
7162 #endif
7163 }
7164
7165 /* UnixWare sets the entsize of .plt to 4, although that doesn't
7166 really seem like the right value. */
7167 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
7168 }
7169 }
7170
7171 /* Fill in the first three entries in the global offset table. */
7172 if (sgot && sgot->size > 0)
7173 {
7174 if (sdyn == NULL)
7175 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
7176 else
7177 bfd_put_32 (output_bfd,
7178 sdyn->output_section->vma + sdyn->output_offset,
7179 sgot->contents);
7180 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
7181 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
7182
7183 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
7184 }
7185
7186 return TRUE;
7187 }
7188
7189 static enum elf_reloc_type_class
sh_elf_reloc_type_class(const Elf_Internal_Rela * rela)7190 sh_elf_reloc_type_class (const Elf_Internal_Rela *rela)
7191 {
7192 switch ((int) ELF32_R_TYPE (rela->r_info))
7193 {
7194 case R_SH_RELATIVE:
7195 return reloc_class_relative;
7196 case R_SH_JMP_SLOT:
7197 return reloc_class_plt;
7198 case R_SH_COPY:
7199 return reloc_class_copy;
7200 default:
7201 return reloc_class_normal;
7202 }
7203 }
7204
7205 #if !defined SH_TARGET_ALREADY_DEFINED
7206 /* Support for Linux core dump NOTE sections. */
7207
7208 static bfd_boolean
elf32_shlin_grok_prstatus(bfd * abfd,Elf_Internal_Note * note)7209 elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
7210 {
7211 int offset;
7212 unsigned int size;
7213
7214 switch (note->descsz)
7215 {
7216 default:
7217 return FALSE;
7218
7219 case 168: /* Linux/SH */
7220 /* pr_cursig */
7221 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
7222
7223 /* pr_pid */
7224 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
7225
7226 /* pr_reg */
7227 offset = 72;
7228 size = 92;
7229
7230 break;
7231 }
7232
7233 /* Make a ".reg/999" section. */
7234 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
7235 size, note->descpos + offset);
7236 }
7237
7238 static bfd_boolean
elf32_shlin_grok_psinfo(bfd * abfd,Elf_Internal_Note * note)7239 elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
7240 {
7241 switch (note->descsz)
7242 {
7243 default:
7244 return FALSE;
7245
7246 case 124: /* Linux/SH elf_prpsinfo */
7247 elf_tdata (abfd)->core_program
7248 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
7249 elf_tdata (abfd)->core_command
7250 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
7251 }
7252
7253 /* Note that for some reason, a spurious space is tacked
7254 onto the end of the args in some (at least one anyway)
7255 implementations, so strip it off if it exists. */
7256
7257 {
7258 char *command = elf_tdata (abfd)->core_command;
7259 int n = strlen (command);
7260
7261 if (0 < n && command[n - 1] == ' ')
7262 command[n - 1] = '\0';
7263 }
7264
7265 return TRUE;
7266 }
7267 #endif /* not SH_TARGET_ALREADY_DEFINED */
7268
7269
7270 /* Return address for Ith PLT stub in section PLT, for relocation REL
7271 or (bfd_vma) -1 if it should not be included. */
7272
7273 static bfd_vma
sh_elf_plt_sym_val(bfd_vma i,const asection * plt,const arelent * rel ATTRIBUTE_UNUSED)7274 sh_elf_plt_sym_val (bfd_vma i, const asection *plt,
7275 const arelent *rel ATTRIBUTE_UNUSED)
7276 {
7277 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
7278 }
7279
7280 #if !defined SH_TARGET_ALREADY_DEFINED
7281 #define TARGET_BIG_SYM bfd_elf32_sh_vec
7282 #define TARGET_BIG_NAME "elf32-sh"
7283 #define TARGET_LITTLE_SYM bfd_elf32_shl_vec
7284 #define TARGET_LITTLE_NAME "elf32-shl"
7285 #endif
7286
7287 #define ELF_ARCH bfd_arch_sh
7288 #define ELF_MACHINE_CODE EM_SH
7289 #ifdef __QNXTARGET__
7290 #define ELF_MAXPAGESIZE 0x1000
7291 #else
7292 #define ELF_MAXPAGESIZE 0x80
7293 #endif
7294
7295 #define elf_symbol_leading_char '_'
7296
7297 #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
7298 #define elf_info_to_howto sh_elf_info_to_howto
7299 #define bfd_elf32_bfd_relax_section sh_elf_relax_section
7300 #define elf_backend_relocate_section sh_elf_relocate_section
7301 #define bfd_elf32_bfd_get_relocated_section_contents \
7302 sh_elf_get_relocated_section_contents
7303 #define bfd_elf32_mkobject sh_elf_mkobject
7304 #define elf_backend_object_p sh_elf_object_p
7305 #define bfd_elf32_bfd_set_private_bfd_flags \
7306 sh_elf_set_private_flags
7307 #define bfd_elf32_bfd_copy_private_bfd_data \
7308 sh_elf_copy_private_data
7309 #define bfd_elf32_bfd_merge_private_bfd_data \
7310 sh_elf_merge_private_data
7311
7312 #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
7313 #define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook
7314 #define elf_backend_check_relocs sh_elf_check_relocs
7315 #define elf_backend_copy_indirect_symbol \
7316 sh_elf_copy_indirect_symbol
7317 #define elf_backend_create_dynamic_sections \
7318 sh_elf_create_dynamic_sections
7319 #define bfd_elf32_bfd_link_hash_table_create \
7320 sh_elf_link_hash_table_create
7321 #define elf_backend_adjust_dynamic_symbol \
7322 sh_elf_adjust_dynamic_symbol
7323 #define elf_backend_size_dynamic_sections \
7324 sh_elf_size_dynamic_sections
7325 #define elf_backend_finish_dynamic_symbol \
7326 sh_elf_finish_dynamic_symbol
7327 #define elf_backend_finish_dynamic_sections \
7328 sh_elf_finish_dynamic_sections
7329 #define elf_backend_reloc_type_class sh_elf_reloc_type_class
7330 #define elf_backend_plt_sym_val sh_elf_plt_sym_val
7331
7332 #define elf_backend_can_gc_sections 1
7333 #define elf_backend_can_refcount 1
7334 #define elf_backend_want_got_plt 1
7335 #define elf_backend_plt_readonly 1
7336 #define elf_backend_want_plt_sym 0
7337 #define elf_backend_got_header_size 12
7338
7339 #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
7340
7341 #include "elf32-target.h"
7342
7343 /* NetBSD support. */
7344 #undef TARGET_BIG_SYM
7345 #define TARGET_BIG_SYM bfd_elf32_shnbsd_vec
7346 #undef TARGET_BIG_NAME
7347 #define TARGET_BIG_NAME "elf32-sh-nbsd"
7348 #undef TARGET_LITTLE_SYM
7349 #define TARGET_LITTLE_SYM bfd_elf32_shlnbsd_vec
7350 #undef TARGET_LITTLE_NAME
7351 #define TARGET_LITTLE_NAME "elf32-shl-nbsd"
7352 #undef ELF_MAXPAGESIZE
7353 #define ELF_MAXPAGESIZE 0x10000
7354 #undef elf_symbol_leading_char
7355 #define elf_symbol_leading_char 0
7356 #undef elf32_bed
7357 #define elf32_bed elf32_sh_nbsd_bed
7358
7359 #include "elf32-target.h"
7360
7361
7362 /* Linux support. */
7363 #undef TARGET_BIG_SYM
7364 #define TARGET_BIG_SYM bfd_elf32_shblin_vec
7365 #undef TARGET_BIG_NAME
7366 #define TARGET_BIG_NAME "elf32-shbig-linux"
7367 #undef TARGET_LITTLE_SYM
7368 #define TARGET_LITTLE_SYM bfd_elf32_shlin_vec
7369 #undef TARGET_LITTLE_NAME
7370 #define TARGET_LITTLE_NAME "elf32-sh-linux"
7371
7372 #undef elf_backend_grok_prstatus
7373 #define elf_backend_grok_prstatus elf32_shlin_grok_prstatus
7374 #undef elf_backend_grok_psinfo
7375 #define elf_backend_grok_psinfo elf32_shlin_grok_psinfo
7376 #undef elf32_bed
7377 #define elf32_bed elf32_sh_lin_bed
7378
7379 #include "elf32-target.h"
7380
7381 #endif /* neither INCLUDE_SHMEDIA nor SH_TARGET_ALREADY_DEFINED */
7382