]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - bfd/elf32-sh.c
projects / thirdparty / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
* elf32-sh.c (elf_sh_pic_plt_entry_be, elf_sh_pic_plt_entry_le):
[thirdparty/binutils-gdb.git] / bfd / elf32-sh.c
1 /* Hitachi SH specific support for 32-bit ELF
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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
29 static bfd_reloc_status_type sh_elf_reloc
30 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
31 static bfd_reloc_status_type sh_elf_ignore_reloc
32 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
33 static reloc_howto_type *sh_elf_reloc_type_lookup
34 PARAMS ((bfd *, bfd_reloc_code_real_type));
35 static void sh_elf_info_to_howto
36 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
37 static boolean sh_elf_set_private_flags
38 PARAMS ((bfd *, flagword));
39 static boolean sh_elf_copy_private_data
40 PARAMS ((bfd *, bfd *));
41 static boolean sh_elf_merge_private_data
42 PARAMS ((bfd *, bfd *));
43 static boolean sh_elf_set_mach_from_flags
44 PARAMS ((bfd *));
45 static boolean sh_elf_relax_section
46 PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
47 static boolean sh_elf_relax_delete_bytes
48 PARAMS ((bfd *, asection *, bfd_vma, int));
49 static boolean sh_elf_align_loads
50 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, boolean *));
51 static boolean sh_elf_swap_insns
52 PARAMS ((bfd *, asection *, PTR, bfd_byte *, bfd_vma));
53 static boolean sh_elf_relocate_section
54 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
55 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
56 static bfd_byte *sh_elf_get_relocated_section_contents
57 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
58 bfd_byte *, boolean, asymbol **));
59 static void sh_elf_copy_indirect_symbol
60 PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *,
61 struct elf_link_hash_entry *));
62 static boolean sh_elf_check_relocs
63 PARAMS ((bfd *, struct bfd_link_info *, asection *,
64 const Elf_Internal_Rela *));
65 static struct bfd_hash_entry *sh_elf_link_hash_newfunc
66 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
67 static struct bfd_link_hash_table *sh_elf_link_hash_table_create
68 PARAMS ((bfd *));
69 static boolean sh_elf_adjust_dynamic_symbol
70 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
71 static boolean sh_elf_size_dynamic_sections
72 PARAMS ((bfd *, struct bfd_link_info *));
73 static boolean sh_elf_finish_dynamic_symbol
74 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
75 Elf_Internal_Sym *));
76 static boolean sh_elf_finish_dynamic_sections
77 PARAMS ((bfd *, struct bfd_link_info *));
78 static bfd_reloc_status_type sh_elf_reloc_loop
79 PARAMS ((int, bfd *, asection *, bfd_byte *, bfd_vma, asection *,
80 bfd_vma, bfd_vma));
81 static boolean create_got_section
82 PARAMS((bfd *, struct bfd_link_info *));
83 static boolean sh_elf_create_dynamic_sections
84 PARAMS ((bfd *, struct bfd_link_info *));
85 static asection * sh_elf_gc_mark_hook
86 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
87 struct elf_link_hash_entry *, Elf_Internal_Sym *));
88 static boolean sh_elf_gc_sweep_hook
89 PARAMS ((bfd *, struct bfd_link_info *, asection *,
90 const Elf_Internal_Rela *));
91 static boolean allocate_dynrelocs
92 PARAMS ((struct elf_link_hash_entry *, PTR));
93 static boolean readonly_dynrelocs
94 PARAMS ((struct elf_link_hash_entry *, PTR));
95 static enum elf_reloc_type_class sh_elf_reloc_type_class
96 PARAMS ((const Elf_Internal_Rela *));
97 #ifdef INCLUDE_SHMEDIA
98 inline static void movi_shori_putval PARAMS ((bfd *, unsigned long, char *));
99 #endif
100
101 /* The name of the dynamic interpreter. This is put in the .interp
102 section. */
103
104 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
105
106 static reloc_howto_type sh_elf_howto_table[] =
107 {
108 /* No relocation. */
109 HOWTO (R_SH_NONE, /* type */
110 0, /* rightshift */
111 0, /* size (0 = byte, 1 = short, 2 = long) */
112 0, /* bitsize */
113 false, /* pc_relative */
114 0, /* bitpos */
115 complain_overflow_dont, /* complain_on_overflow */
116 sh_elf_ignore_reloc, /* special_function */
117 "R_SH_NONE", /* name */
118 false, /* partial_inplace */
119 0, /* src_mask */
120 0, /* dst_mask */
121 false), /* pcrel_offset */
122
123 /* 32 bit absolute relocation. Setting partial_inplace to true and
124 src_mask to a non-zero value is similar to the COFF toolchain. */
125 HOWTO (R_SH_DIR32, /* type */
126 0, /* rightshift */
127 2, /* size (0 = byte, 1 = short, 2 = long) */
128 32, /* bitsize */
129 false, /* pc_relative */
130 0, /* bitpos */
131 complain_overflow_bitfield, /* complain_on_overflow */
132 sh_elf_reloc, /* special_function */
133 "R_SH_DIR32", /* name */
134 true, /* partial_inplace */
135 0xffffffff, /* src_mask */
136 0xffffffff, /* dst_mask */
137 false), /* pcrel_offset */
138
139 /* 32 bit PC relative relocation. */
140 HOWTO (R_SH_REL32, /* type */
141 0, /* rightshift */
142 2, /* size (0 = byte, 1 = short, 2 = long) */
143 32, /* bitsize */
144 true, /* pc_relative */
145 0, /* bitpos */
146 complain_overflow_signed, /* complain_on_overflow */
147 sh_elf_ignore_reloc, /* special_function */
148 "R_SH_REL32", /* name */
149 true, /* partial_inplace */
150 0xffffffff, /* src_mask */
151 0xffffffff, /* dst_mask */
152 true), /* pcrel_offset */
153
154 /* 8 bit PC relative branch divided by 2. */
155 HOWTO (R_SH_DIR8WPN, /* type */
156 1, /* rightshift */
157 1, /* size (0 = byte, 1 = short, 2 = long) */
158 8, /* bitsize */
159 true, /* pc_relative */
160 0, /* bitpos */
161 complain_overflow_signed, /* complain_on_overflow */
162 sh_elf_ignore_reloc, /* special_function */
163 "R_SH_DIR8WPN", /* name */
164 true, /* partial_inplace */
165 0xff, /* src_mask */
166 0xff, /* dst_mask */
167 true), /* pcrel_offset */
168
169 /* 12 bit PC relative branch divided by 2. */
170 HOWTO (R_SH_IND12W, /* type */
171 1, /* rightshift */
172 1, /* size (0 = byte, 1 = short, 2 = long) */
173 12, /* bitsize */
174 true, /* pc_relative */
175 0, /* bitpos */
176 complain_overflow_signed, /* complain_on_overflow */
177 sh_elf_reloc, /* special_function */
178 "R_SH_IND12W", /* name */
179 true, /* partial_inplace */
180 0xfff, /* src_mask */
181 0xfff, /* dst_mask */
182 true), /* pcrel_offset */
183
184 /* 8 bit unsigned PC relative divided by 4. */
185 HOWTO (R_SH_DIR8WPL, /* type */
186 2, /* rightshift */
187 1, /* size (0 = byte, 1 = short, 2 = long) */
188 8, /* bitsize */
189 true, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_unsigned, /* complain_on_overflow */
192 sh_elf_ignore_reloc, /* special_function */
193 "R_SH_DIR8WPL", /* name */
194 true, /* partial_inplace */
195 0xff, /* src_mask */
196 0xff, /* dst_mask */
197 true), /* pcrel_offset */
198
199 /* 8 bit unsigned PC relative divided by 2. */
200 HOWTO (R_SH_DIR8WPZ, /* type */
201 1, /* rightshift */
202 1, /* size (0 = byte, 1 = short, 2 = long) */
203 8, /* bitsize */
204 true, /* pc_relative */
205 0, /* bitpos */
206 complain_overflow_unsigned, /* complain_on_overflow */
207 sh_elf_ignore_reloc, /* special_function */
208 "R_SH_DIR8WPZ", /* name */
209 true, /* partial_inplace */
210 0xff, /* src_mask */
211 0xff, /* dst_mask */
212 true), /* pcrel_offset */
213
214 /* 8 bit GBR relative. FIXME: This only makes sense if we have some
215 special symbol for the GBR relative area, and that is not
216 implemented. */
217 HOWTO (R_SH_DIR8BP, /* type */
218 0, /* rightshift */
219 1, /* size (0 = byte, 1 = short, 2 = long) */
220 8, /* bitsize */
221 false, /* pc_relative */
222 0, /* bitpos */
223 complain_overflow_unsigned, /* complain_on_overflow */
224 sh_elf_ignore_reloc, /* special_function */
225 "R_SH_DIR8BP", /* name */
226 false, /* partial_inplace */
227 0, /* src_mask */
228 0xff, /* dst_mask */
229 true), /* pcrel_offset */
230
231 /* 8 bit GBR relative divided by 2. FIXME: This only makes sense if
232 we have some special symbol for the GBR relative area, and that
233 is not implemented. */
234 HOWTO (R_SH_DIR8W, /* type */
235 1, /* rightshift */
236 1, /* size (0 = byte, 1 = short, 2 = long) */
237 8, /* bitsize */
238 false, /* pc_relative */
239 0, /* bitpos */
240 complain_overflow_unsigned, /* complain_on_overflow */
241 sh_elf_ignore_reloc, /* special_function */
242 "R_SH_DIR8W", /* name */
243 false, /* partial_inplace */
244 0, /* src_mask */
245 0xff, /* dst_mask */
246 true), /* pcrel_offset */
247
248 /* 8 bit GBR relative divided by 4. FIXME: This only makes sense if
249 we have some special symbol for the GBR relative area, and that
250 is not implemented. */
251 HOWTO (R_SH_DIR8L, /* type */
252 2, /* rightshift */
253 1, /* size (0 = byte, 1 = short, 2 = long) */
254 8, /* bitsize */
255 false, /* pc_relative */
256 0, /* bitpos */
257 complain_overflow_unsigned, /* complain_on_overflow */
258 sh_elf_ignore_reloc, /* special_function */
259 "R_SH_DIR8L", /* name */
260 false, /* partial_inplace */
261 0, /* src_mask */
262 0xff, /* dst_mask */
263 true), /* pcrel_offset */
264
265 EMPTY_HOWTO (10),
266 EMPTY_HOWTO (11),
267 EMPTY_HOWTO (12),
268 EMPTY_HOWTO (13),
269 EMPTY_HOWTO (14),
270 EMPTY_HOWTO (15),
271 EMPTY_HOWTO (16),
272 EMPTY_HOWTO (17),
273 EMPTY_HOWTO (18),
274 EMPTY_HOWTO (19),
275 EMPTY_HOWTO (20),
276 EMPTY_HOWTO (21),
277 EMPTY_HOWTO (22),
278 EMPTY_HOWTO (23),
279 EMPTY_HOWTO (24),
280
281 /* The remaining relocs are a GNU extension used for relaxing. The
282 final pass of the linker never needs to do anything with any of
283 these relocs. Any required operations are handled by the
284 relaxation code. */
285
286 /* A 16 bit switch table entry. This is generated for an expression
287 such as ``.word L1 - L2''. The offset holds the difference
288 between the reloc address and L2. */
289 HOWTO (R_SH_SWITCH16, /* type */
290 0, /* rightshift */
291 1, /* size (0 = byte, 1 = short, 2 = long) */
292 16, /* bitsize */
293 false, /* pc_relative */
294 0, /* bitpos */
295 complain_overflow_unsigned, /* complain_on_overflow */
296 sh_elf_ignore_reloc, /* special_function */
297 "R_SH_SWITCH16", /* name */
298 false, /* partial_inplace */
299 0, /* src_mask */
300 0, /* dst_mask */
301 true), /* pcrel_offset */
302
303 /* A 32 bit switch table entry. This is generated for an expression
304 such as ``.long L1 - L2''. The offset holds the difference
305 between the reloc address and L2. */
306 HOWTO (R_SH_SWITCH32, /* type */
307 0, /* rightshift */
308 2, /* size (0 = byte, 1 = short, 2 = long) */
309 32, /* bitsize */
310 false, /* pc_relative */
311 0, /* bitpos */
312 complain_overflow_unsigned, /* complain_on_overflow */
313 sh_elf_ignore_reloc, /* special_function */
314 "R_SH_SWITCH32", /* name */
315 false, /* partial_inplace */
316 0, /* src_mask */
317 0, /* dst_mask */
318 true), /* pcrel_offset */
319
320 /* Indicates a .uses pseudo-op. The compiler will generate .uses
321 pseudo-ops when it finds a function call which can be relaxed.
322 The offset field holds the PC relative offset to the instruction
323 which loads the register used in the function call. */
324 HOWTO (R_SH_USES, /* type */
325 0, /* rightshift */
326 1, /* size (0 = byte, 1 = short, 2 = long) */
327 0, /* bitsize */
328 false, /* pc_relative */
329 0, /* bitpos */
330 complain_overflow_unsigned, /* complain_on_overflow */
331 sh_elf_ignore_reloc, /* special_function */
332 "R_SH_USES", /* name */
333 false, /* partial_inplace */
334 0, /* src_mask */
335 0, /* dst_mask */
336 true), /* pcrel_offset */
337
338 /* The assembler will generate this reloc for addresses referred to
339 by the register loads associated with USES relocs. The offset
340 field holds the number of times the address is referenced in the
341 object file. */
342 HOWTO (R_SH_COUNT, /* type */
343 0, /* rightshift */
344 1, /* size (0 = byte, 1 = short, 2 = long) */
345 0, /* bitsize */
346 false, /* pc_relative */
347 0, /* bitpos */
348 complain_overflow_unsigned, /* complain_on_overflow */
349 sh_elf_ignore_reloc, /* special_function */
350 "R_SH_COUNT", /* name */
351 false, /* partial_inplace */
352 0, /* src_mask */
353 0, /* dst_mask */
354 true), /* pcrel_offset */
355
356 /* Indicates an alignment statement. The offset field is the power
357 of 2 to which subsequent portions of the object file must be
358 aligned. */
359 HOWTO (R_SH_ALIGN, /* type */
360 0, /* rightshift */
361 1, /* size (0 = byte, 1 = short, 2 = long) */
362 0, /* bitsize */
363 false, /* pc_relative */
364 0, /* bitpos */
365 complain_overflow_unsigned, /* complain_on_overflow */
366 sh_elf_ignore_reloc, /* special_function */
367 "R_SH_ALIGN", /* name */
368 false, /* partial_inplace */
369 0, /* src_mask */
370 0, /* dst_mask */
371 true), /* pcrel_offset */
372
373 /* The assembler will generate this reloc before a block of
374 instructions. A section should be processed as assumining it
375 contains data, unless this reloc is seen. */
376 HOWTO (R_SH_CODE, /* type */
377 0, /* rightshift */
378 1, /* size (0 = byte, 1 = short, 2 = long) */
379 0, /* bitsize */
380 false, /* pc_relative */
381 0, /* bitpos */
382 complain_overflow_unsigned, /* complain_on_overflow */
383 sh_elf_ignore_reloc, /* special_function */
384 "R_SH_CODE", /* name */
385 false, /* partial_inplace */
386 0, /* src_mask */
387 0, /* dst_mask */
388 true), /* pcrel_offset */
389
390 /* The assembler will generate this reloc after a block of
391 instructions when it sees data that is not instructions. */
392 HOWTO (R_SH_DATA, /* type */
393 0, /* rightshift */
394 1, /* size (0 = byte, 1 = short, 2 = long) */
395 0, /* bitsize */
396 false, /* pc_relative */
397 0, /* bitpos */
398 complain_overflow_unsigned, /* complain_on_overflow */
399 sh_elf_ignore_reloc, /* special_function */
400 "R_SH_DATA", /* name */
401 false, /* partial_inplace */
402 0, /* src_mask */
403 0, /* dst_mask */
404 true), /* pcrel_offset */
405
406 /* The assembler generates this reloc for each label within a block
407 of instructions. This permits the linker to avoid swapping
408 instructions which are the targets of branches. */
409 HOWTO (R_SH_LABEL, /* type */
410 0, /* rightshift */
411 1, /* size (0 = byte, 1 = short, 2 = long) */
412 0, /* bitsize */
413 false, /* pc_relative */
414 0, /* bitpos */
415 complain_overflow_unsigned, /* complain_on_overflow */
416 sh_elf_ignore_reloc, /* special_function */
417 "R_SH_LABEL", /* name */
418 false, /* partial_inplace */
419 0, /* src_mask */
420 0, /* dst_mask */
421 true), /* pcrel_offset */
422
423 /* An 8 bit switch table entry. This is generated for an expression
424 such as ``.word L1 - L2''. The offset holds the difference
425 between the reloc address and L2. */
426 HOWTO (R_SH_SWITCH8, /* type */
427 0, /* rightshift */
428 0, /* size (0 = byte, 1 = short, 2 = long) */
429 8, /* bitsize */
430 false, /* pc_relative */
431 0, /* bitpos */
432 complain_overflow_unsigned, /* complain_on_overflow */
433 sh_elf_ignore_reloc, /* special_function */
434 "R_SH_SWITCH8", /* name */
435 false, /* partial_inplace */
436 0, /* src_mask */
437 0, /* dst_mask */
438 true), /* pcrel_offset */
439
440 /* GNU extension to record C++ vtable hierarchy */
441 HOWTO (R_SH_GNU_VTINHERIT, /* type */
442 0, /* rightshift */
443 2, /* size (0 = byte, 1 = short, 2 = long) */
444 0, /* bitsize */
445 false, /* pc_relative */
446 0, /* bitpos */
447 complain_overflow_dont, /* complain_on_overflow */
448 NULL, /* special_function */
449 "R_SH_GNU_VTINHERIT", /* name */
450 false, /* partial_inplace */
451 0, /* src_mask */
452 0, /* dst_mask */
453 false), /* pcrel_offset */
454
455 /* GNU extension to record C++ vtable member usage */
456 HOWTO (R_SH_GNU_VTENTRY, /* type */
457 0, /* rightshift */
458 2, /* size (0 = byte, 1 = short, 2 = long) */
459 0, /* bitsize */
460 false, /* pc_relative */
461 0, /* bitpos */
462 complain_overflow_dont, /* complain_on_overflow */
463 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
464 "R_SH_GNU_VTENTRY", /* name */
465 false, /* partial_inplace */
466 0, /* src_mask */
467 0, /* dst_mask */
468 false), /* pcrel_offset */
469
470 /* 8 bit PC relative divided by 2 - but specified in a very odd way. */
471 HOWTO (R_SH_LOOP_START, /* type */
472 1, /* rightshift */
473 1, /* size (0 = byte, 1 = short, 2 = long) */
474 8, /* bitsize */
475 false, /* pc_relative */
476 0, /* bitpos */
477 complain_overflow_signed, /* complain_on_overflow */
478 sh_elf_ignore_reloc, /* special_function */
479 "R_SH_LOOP_START", /* name */
480 true, /* partial_inplace */
481 0xff, /* src_mask */
482 0xff, /* dst_mask */
483 true), /* pcrel_offset */
484
485 /* 8 bit PC relative divided by 2 - but specified in a very odd way. */
486 HOWTO (R_SH_LOOP_END, /* type */
487 1, /* rightshift */
488 1, /* size (0 = byte, 1 = short, 2 = long) */
489 8, /* bitsize */
490 false, /* pc_relative */
491 0, /* bitpos */
492 complain_overflow_signed, /* complain_on_overflow */
493 sh_elf_ignore_reloc, /* special_function */
494 "R_SH_LOOP_END", /* name */
495 true, /* partial_inplace */
496 0xff, /* src_mask */
497 0xff, /* dst_mask */
498 true), /* pcrel_offset */
499
500 EMPTY_HOWTO (38),
501 EMPTY_HOWTO (39),
502 EMPTY_HOWTO (40),
503 EMPTY_HOWTO (41),
504 EMPTY_HOWTO (42),
505 EMPTY_HOWTO (43),
506 EMPTY_HOWTO (44),
507
508 #ifdef INCLUDE_SHMEDIA
509 /* Used in SHLLI.L and SHLRI.L. */
510 HOWTO (R_SH_DIR5U, /* type */
511 0, /* rightshift */
512 2, /* size (0 = byte, 1 = short, 2 = long) */
513 5, /* bitsize */
514 false, /* pc_relative */
515 10, /* bitpos */
516 complain_overflow_unsigned, /* complain_on_overflow */
517 bfd_elf_generic_reloc, /* special_function */
518 "R_SH_DIR5U", /* name */
519 false, /* partial_inplace */
520 0, /* src_mask */
521 0xfc00, /* dst_mask */
522 false), /* pcrel_offset */
523
524 /* Used in SHARI, SHLLI et al. */
525 HOWTO (R_SH_DIR6U, /* type */
526 0, /* rightshift */
527 2, /* size (0 = byte, 1 = short, 2 = long) */
528 6, /* bitsize */
529 false, /* pc_relative */
530 10, /* bitpos */
531 complain_overflow_unsigned, /* complain_on_overflow */
532 bfd_elf_generic_reloc, /* special_function */
533 "R_SH_DIR6U", /* name */
534 false, /* partial_inplace */
535 0, /* src_mask */
536 0xfc00, /* dst_mask */
537 false), /* pcrel_offset */
538
539 /* Used in BxxI, LDHI.L et al. */
540 HOWTO (R_SH_DIR6S, /* type */
541 0, /* rightshift */
542 2, /* size (0 = byte, 1 = short, 2 = long) */
543 6, /* bitsize */
544 false, /* pc_relative */
545 10, /* bitpos */
546 complain_overflow_signed, /* complain_on_overflow */
547 bfd_elf_generic_reloc, /* special_function */
548 "R_SH_DIR6S", /* name */
549 false, /* partial_inplace */
550 0, /* src_mask */
551 0xfc00, /* dst_mask */
552 false), /* pcrel_offset */
553
554 /* Used in ADDI, ANDI et al. */
555 HOWTO (R_SH_DIR10S, /* type */
556 0, /* rightshift */
557 2, /* size (0 = byte, 1 = short, 2 = long) */
558 10, /* bitsize */
559 false, /* pc_relative */
560 10, /* bitpos */
561 complain_overflow_signed, /* complain_on_overflow */
562 bfd_elf_generic_reloc, /* special_function */
563 "R_SH_DIR10S", /* name */
564 false, /* partial_inplace */
565 0, /* src_mask */
566 0xffc00, /* dst_mask */
567 false), /* pcrel_offset */
568
569 /* Used in LD.UW, ST.W et al. */
570 HOWTO (R_SH_DIR10SW, /* type */
571 1, /* rightshift */
572 2, /* size (0 = byte, 1 = short, 2 = long) */
573 11, /* bitsize */
574 false, /* pc_relative */
575 10, /* bitpos */
576 complain_overflow_signed, /* complain_on_overflow */
577 bfd_elf_generic_reloc, /* special_function */
578 "R_SH_DIR10SW", /* name */
579 false, /* partial_inplace */
580 0, /* src_mask */
581 0xffc00, /* dst_mask */
582 false), /* pcrel_offset */
583
584 /* Used in LD.L, FLD.S et al. */
585 HOWTO (R_SH_DIR10SL, /* type */
586 2, /* rightshift */
587 2, /* size (0 = byte, 1 = short, 2 = long) */
588 12, /* bitsize */
589 false, /* pc_relative */
590 10, /* bitpos */
591 complain_overflow_signed, /* complain_on_overflow */
592 bfd_elf_generic_reloc, /* special_function */
593 "R_SH_DIR10SL", /* name */
594 false, /* partial_inplace */
595 0, /* src_mask */
596 0xffc00, /* dst_mask */
597 false), /* pcrel_offset */
598
599 /* Used in FLD.D, FST.P et al. */
600 HOWTO (R_SH_DIR10SQ, /* type */
601 3, /* rightshift */
602 2, /* size (0 = byte, 1 = short, 2 = long) */
603 13, /* bitsize */
604 false, /* pc_relative */
605 10, /* bitpos */
606 complain_overflow_signed, /* complain_on_overflow */
607 bfd_elf_generic_reloc, /* special_function */
608 "R_SH_DIR10SQ", /* name */
609 false, /* partial_inplace */
610 0, /* src_mask */
611 0xffc00, /* dst_mask */
612 false), /* pcrel_offset */
613
614 #else
615 EMPTY_HOWTO (45),
616 EMPTY_HOWTO (46),
617 EMPTY_HOWTO (47),
618 EMPTY_HOWTO (48),
619 EMPTY_HOWTO (49),
620 EMPTY_HOWTO (50),
621 EMPTY_HOWTO (51),
622 #endif
623
624 EMPTY_HOWTO (52),
625 EMPTY_HOWTO (53),
626 EMPTY_HOWTO (54),
627 EMPTY_HOWTO (55),
628 EMPTY_HOWTO (56),
629 EMPTY_HOWTO (57),
630 EMPTY_HOWTO (58),
631 EMPTY_HOWTO (59),
632 EMPTY_HOWTO (60),
633 EMPTY_HOWTO (61),
634 EMPTY_HOWTO (62),
635 EMPTY_HOWTO (63),
636 EMPTY_HOWTO (64),
637 EMPTY_HOWTO (65),
638 EMPTY_HOWTO (66),
639 EMPTY_HOWTO (67),
640 EMPTY_HOWTO (68),
641 EMPTY_HOWTO (69),
642 EMPTY_HOWTO (70),
643 EMPTY_HOWTO (71),
644 EMPTY_HOWTO (72),
645 EMPTY_HOWTO (73),
646 EMPTY_HOWTO (74),
647 EMPTY_HOWTO (75),
648 EMPTY_HOWTO (76),
649 EMPTY_HOWTO (77),
650 EMPTY_HOWTO (78),
651 EMPTY_HOWTO (79),
652 EMPTY_HOWTO (80),
653 EMPTY_HOWTO (81),
654 EMPTY_HOWTO (82),
655 EMPTY_HOWTO (83),
656 EMPTY_HOWTO (84),
657 EMPTY_HOWTO (85),
658 EMPTY_HOWTO (86),
659 EMPTY_HOWTO (87),
660 EMPTY_HOWTO (88),
661 EMPTY_HOWTO (89),
662 EMPTY_HOWTO (90),
663 EMPTY_HOWTO (91),
664 EMPTY_HOWTO (92),
665 EMPTY_HOWTO (93),
666 EMPTY_HOWTO (94),
667 EMPTY_HOWTO (95),
668 EMPTY_HOWTO (96),
669 EMPTY_HOWTO (97),
670 EMPTY_HOWTO (98),
671 EMPTY_HOWTO (99),
672 EMPTY_HOWTO (100),
673 EMPTY_HOWTO (101),
674 EMPTY_HOWTO (102),
675 EMPTY_HOWTO (103),
676 EMPTY_HOWTO (104),
677 EMPTY_HOWTO (105),
678 EMPTY_HOWTO (106),
679 EMPTY_HOWTO (107),
680 EMPTY_HOWTO (108),
681 EMPTY_HOWTO (109),
682 EMPTY_HOWTO (110),
683 EMPTY_HOWTO (111),
684 EMPTY_HOWTO (112),
685 EMPTY_HOWTO (113),
686 EMPTY_HOWTO (114),
687 EMPTY_HOWTO (115),
688 EMPTY_HOWTO (116),
689 EMPTY_HOWTO (117),
690 EMPTY_HOWTO (118),
691 EMPTY_HOWTO (119),
692 EMPTY_HOWTO (120),
693 EMPTY_HOWTO (121),
694 EMPTY_HOWTO (122),
695 EMPTY_HOWTO (123),
696 EMPTY_HOWTO (124),
697 EMPTY_HOWTO (125),
698 EMPTY_HOWTO (126),
699 EMPTY_HOWTO (127),
700 EMPTY_HOWTO (128),
701 EMPTY_HOWTO (129),
702 EMPTY_HOWTO (130),
703 EMPTY_HOWTO (131),
704 EMPTY_HOWTO (132),
705 EMPTY_HOWTO (133),
706 EMPTY_HOWTO (134),
707 EMPTY_HOWTO (135),
708 EMPTY_HOWTO (136),
709 EMPTY_HOWTO (137),
710 EMPTY_HOWTO (138),
711 EMPTY_HOWTO (139),
712 EMPTY_HOWTO (140),
713 EMPTY_HOWTO (141),
714 EMPTY_HOWTO (142),
715 EMPTY_HOWTO (143),
716 EMPTY_HOWTO (144),
717 EMPTY_HOWTO (145),
718 EMPTY_HOWTO (146),
719 EMPTY_HOWTO (147),
720 EMPTY_HOWTO (148),
721 EMPTY_HOWTO (149),
722 EMPTY_HOWTO (150),
723 EMPTY_HOWTO (151),
724 EMPTY_HOWTO (152),
725 EMPTY_HOWTO (153),
726 EMPTY_HOWTO (154),
727 EMPTY_HOWTO (155),
728 EMPTY_HOWTO (156),
729 EMPTY_HOWTO (157),
730 EMPTY_HOWTO (158),
731 EMPTY_HOWTO (159),
732
733 HOWTO (R_SH_GOT32, /* type */
734 0, /* rightshift */
735 2, /* size (0 = byte, 1 = short, 2 = long) */
736 32, /* bitsize */
737 false, /* pc_relative */
738 0, /* bitpos */
739 complain_overflow_bitfield, /* complain_on_overflow */
740 bfd_elf_generic_reloc, /* */
741 "R_SH_GOT32", /* name */
742 true, /* partial_inplace */
743 0xffffffff, /* src_mask */
744 0xffffffff, /* dst_mask */
745 false), /* pcrel_offset */
746
747 HOWTO (R_SH_PLT32, /* type */
748 0, /* rightshift */
749 2, /* size (0 = byte, 1 = short, 2 = long) */
750 32, /* bitsize */
751 true, /* pc_relative */
752 0, /* bitpos */
753 complain_overflow_bitfield, /* complain_on_overflow */
754 bfd_elf_generic_reloc, /* */
755 "R_SH_PLT32", /* name */
756 true, /* partial_inplace */
757 0xffffffff, /* src_mask */
758 0xffffffff, /* dst_mask */
759 true), /* pcrel_offset */
760
761 HOWTO (R_SH_COPY, /* type */
762 0, /* rightshift */
763 2, /* size (0 = byte, 1 = short, 2 = long) */
764 32, /* bitsize */
765 false, /* pc_relative */
766 0, /* bitpos */
767 complain_overflow_bitfield, /* complain_on_overflow */
768 bfd_elf_generic_reloc, /* */
769 "R_SH_COPY", /* name */
770 true, /* partial_inplace */
771 0xffffffff, /* src_mask */
772 0xffffffff, /* dst_mask */
773 false), /* pcrel_offset */
774
775 HOWTO (R_SH_GLOB_DAT, /* type */
776 0, /* rightshift */
777 2, /* size (0 = byte, 1 = short, 2 = long) */
778 32, /* bitsize */
779 false, /* pc_relative */
780 0, /* bitpos */
781 complain_overflow_bitfield, /* complain_on_overflow */
782 bfd_elf_generic_reloc, /* */
783 "R_SH_GLOB_DAT", /* name */
784 true, /* partial_inplace */
785 0xffffffff, /* src_mask */
786 0xffffffff, /* dst_mask */
787 false), /* pcrel_offset */
788
789 HOWTO (R_SH_JMP_SLOT, /* type */
790 0, /* rightshift */
791 2, /* size (0 = byte, 1 = short, 2 = long) */
792 32, /* bitsize */
793 false, /* pc_relative */
794 0, /* bitpos */
795 complain_overflow_bitfield, /* complain_on_overflow */
796 bfd_elf_generic_reloc, /* */
797 "R_SH_JMP_SLOT", /* name */
798 true, /* partial_inplace */
799 0xffffffff, /* src_mask */
800 0xffffffff, /* dst_mask */
801 false), /* pcrel_offset */
802
803 HOWTO (R_SH_RELATIVE, /* type */
804 0, /* rightshift */
805 2, /* size (0 = byte, 1 = short, 2 = long) */
806 32, /* bitsize */
807 false, /* pc_relative */
808 0, /* bitpos */
809 complain_overflow_bitfield, /* complain_on_overflow */
810 bfd_elf_generic_reloc, /* */
811 "R_SH_RELATIVE", /* name */
812 true, /* partial_inplace */
813 0xffffffff, /* src_mask */
814 0xffffffff, /* dst_mask */
815 false), /* pcrel_offset */
816
817 HOWTO (R_SH_GOTOFF, /* type */
818 0, /* rightshift */
819 2, /* size (0 = byte, 1 = short, 2 = long) */
820 32, /* bitsize */
821 false, /* pc_relative */
822 0, /* bitpos */
823 complain_overflow_bitfield, /* complain_on_overflow */
824 bfd_elf_generic_reloc, /* */
825 "R_SH_GOTOFF", /* name */
826 true, /* partial_inplace */
827 0xffffffff, /* src_mask */
828 0xffffffff, /* dst_mask */
829 false), /* pcrel_offset */
830
831 HOWTO (R_SH_GOTPC, /* type */
832 0, /* rightshift */
833 2, /* size (0 = byte, 1 = short, 2 = long) */
834 32, /* bitsize */
835 true, /* pc_relative */
836 0, /* bitpos */
837 complain_overflow_bitfield, /* complain_on_overflow */
838 bfd_elf_generic_reloc, /* */
839 "R_SH_GOTPC", /* name */
840 true, /* partial_inplace */
841 0xffffffff, /* src_mask */
842 0xffffffff, /* dst_mask */
843 true), /* pcrel_offset */
844
845 HOWTO (R_SH_GOTPLT32, /* type */
846 0, /* rightshift */
847 2, /* size (0 = byte, 1 = short, 2 = long) */
848 32, /* bitsize */
849 false, /* pc_relative */
850 0, /* bitpos */
851 complain_overflow_bitfield, /* complain_on_overflow */
852 bfd_elf_generic_reloc, /* */
853 "R_SH_GOTPLT32", /* name */
854 false, /* partial_inplace */
855 0xffffffff, /* src_mask */
856 0xffffffff, /* dst_mask */
857 false), /* pcrel_offset */
858
859 #ifdef INCLUDE_SHMEDIA
860 /* Used in MOVI and SHORI (x & 65536). */
861 HOWTO (R_SH_GOT_LOW16, /* type */
862 0, /* rightshift */
863 2, /* size (0 = byte, 1 = short, 2 = long) */
864 64, /* bitsize */
865 false, /* pc_relative */
866 10, /* bitpos */
867 complain_overflow_dont, /* complain_on_overflow */
868 bfd_elf_generic_reloc, /* special_function */
869 "R_SH_GOT_LOW16", /* name */
870 false, /* partial_inplace */
871 0, /* src_mask */
872 0x3fffc00, /* dst_mask */
873 false), /* pcrel_offset */
874
875 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
876 HOWTO (R_SH_GOT_MEDLOW16, /* type */
877 16, /* rightshift */
878 2, /* size (0 = byte, 1 = short, 2 = long) */
879 64, /* bitsize */
880 false, /* pc_relative */
881 10, /* bitpos */
882 complain_overflow_dont, /* complain_on_overflow */
883 bfd_elf_generic_reloc, /* special_function */
884 "R_SH_GOT_MEDLOW16", /* name */
885 false, /* partial_inplace */
886 0, /* src_mask */
887 0x3fffc00, /* dst_mask */
888 false), /* pcrel_offset */
889
890 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
891 HOWTO (R_SH_GOT_MEDHI16, /* type */
892 32, /* rightshift */
893 2, /* size (0 = byte, 1 = short, 2 = long) */
894 64, /* bitsize */
895 false, /* pc_relative */
896 10, /* bitpos */
897 complain_overflow_dont, /* complain_on_overflow */
898 bfd_elf_generic_reloc, /* special_function */
899 "R_SH_GOT_MEDHI16", /* name */
900 false, /* partial_inplace */
901 0, /* src_mask */
902 0x3fffc00, /* dst_mask */
903 false), /* pcrel_offset */
904
905 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
906 HOWTO (R_SH_GOT_HI16, /* type */
907 48, /* rightshift */
908 2, /* size (0 = byte, 1 = short, 2 = long) */
909 64, /* bitsize */
910 false, /* pc_relative */
911 10, /* bitpos */
912 complain_overflow_dont, /* complain_on_overflow */
913 bfd_elf_generic_reloc, /* special_function */
914 "R_SH_GOT_HI16", /* name */
915 false, /* partial_inplace */
916 0, /* src_mask */
917 0x3fffc00, /* dst_mask */
918 false), /* pcrel_offset */
919
920 /* Used in MOVI and SHORI (x & 65536). */
921 HOWTO (R_SH_GOTPLT_LOW16, /* type */
922 0, /* rightshift */
923 2, /* size (0 = byte, 1 = short, 2 = long) */
924 64, /* bitsize */
925 false, /* pc_relative */
926 10, /* bitpos */
927 complain_overflow_dont, /* complain_on_overflow */
928 bfd_elf_generic_reloc, /* special_function */
929 "R_SH_GOTPLT_LOW16", /* name */
930 false, /* partial_inplace */
931 0, /* src_mask */
932 0x3fffc00, /* dst_mask */
933 false), /* pcrel_offset */
934
935 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
936 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */
937 16, /* rightshift */
938 2, /* size (0 = byte, 1 = short, 2 = long) */
939 64, /* bitsize */
940 false, /* pc_relative */
941 10, /* bitpos */
942 complain_overflow_dont, /* complain_on_overflow */
943 bfd_elf_generic_reloc, /* special_function */
944 "R_SH_GOTPLT_MEDLOW16", /* name */
945 false, /* partial_inplace */
946 0, /* src_mask */
947 0x3fffc00, /* dst_mask */
948 false), /* pcrel_offset */
949
950 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
951 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */
952 32, /* rightshift */
953 2, /* size (0 = byte, 1 = short, 2 = long) */
954 64, /* bitsize */
955 false, /* pc_relative */
956 10, /* bitpos */
957 complain_overflow_dont, /* complain_on_overflow */
958 bfd_elf_generic_reloc, /* special_function */
959 "R_SH_GOTPLT_MEDHI16", /* name */
960 false, /* partial_inplace */
961 0, /* src_mask */
962 0x3fffc00, /* dst_mask */
963 false), /* pcrel_offset */
964
965 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
966 HOWTO (R_SH_GOTPLT_HI16, /* type */
967 48, /* rightshift */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
969 64, /* bitsize */
970 false, /* pc_relative */
971 10, /* bitpos */
972 complain_overflow_dont, /* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_SH_GOTPLT_HI16", /* name */
975 false, /* partial_inplace */
976 0, /* src_mask */
977 0x3fffc00, /* dst_mask */
978 false), /* pcrel_offset */
979
980 /* Used in MOVI and SHORI (x & 65536). */
981 HOWTO (R_SH_PLT_LOW16, /* type */
982 0, /* rightshift */
983 2, /* size (0 = byte, 1 = short, 2 = long) */
984 64, /* bitsize */
985 true, /* pc_relative */
986 10, /* bitpos */
987 complain_overflow_dont, /* complain_on_overflow */
988 bfd_elf_generic_reloc, /* special_function */
989 "R_SH_PLT_LOW16", /* name */
990 false, /* partial_inplace */
991 0, /* src_mask */
992 0x3fffc00, /* dst_mask */
993 true), /* pcrel_offset */
994
995 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
996 HOWTO (R_SH_PLT_MEDLOW16, /* type */
997 16, /* rightshift */
998 2, /* size (0 = byte, 1 = short, 2 = long) */
999 64, /* bitsize */
1000 true, /* pc_relative */
1001 10, /* bitpos */
1002 complain_overflow_dont, /* complain_on_overflow */
1003 bfd_elf_generic_reloc, /* special_function */
1004 "R_SH_PLT_MEDLOW16", /* name */
1005 false, /* partial_inplace */
1006 0, /* src_mask */
1007 0x3fffc00, /* dst_mask */
1008 true), /* pcrel_offset */
1009
1010 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1011 HOWTO (R_SH_PLT_MEDHI16, /* type */
1012 32, /* rightshift */
1013 2, /* size (0 = byte, 1 = short, 2 = long) */
1014 64, /* bitsize */
1015 true, /* pc_relative */
1016 10, /* bitpos */
1017 complain_overflow_dont, /* complain_on_overflow */
1018 bfd_elf_generic_reloc, /* special_function */
1019 "R_SH_PLT_MEDHI16", /* name */
1020 false, /* partial_inplace */
1021 0, /* src_mask */
1022 0x3fffc00, /* dst_mask */
1023 true), /* pcrel_offset */
1024
1025 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1026 HOWTO (R_SH_PLT_HI16, /* type */
1027 48, /* rightshift */
1028 2, /* size (0 = byte, 1 = short, 2 = long) */
1029 64, /* bitsize */
1030 true, /* pc_relative */
1031 10, /* bitpos */
1032 complain_overflow_dont, /* complain_on_overflow */
1033 bfd_elf_generic_reloc, /* special_function */
1034 "R_SH_PLT_HI16", /* name */
1035 false, /* partial_inplace */
1036 0, /* src_mask */
1037 0x3fffc00, /* dst_mask */
1038 true), /* pcrel_offset */
1039
1040 /* Used in MOVI and SHORI (x & 65536). */
1041 HOWTO (R_SH_GOTOFF_LOW16, /* type */
1042 0, /* rightshift */
1043 2, /* size (0 = byte, 1 = short, 2 = long) */
1044 64, /* bitsize */
1045 false, /* pc_relative */
1046 10, /* bitpos */
1047 complain_overflow_dont, /* complain_on_overflow */
1048 bfd_elf_generic_reloc, /* special_function */
1049 "R_SH_GOTOFF_LOW16", /* name */
1050 false, /* partial_inplace */
1051 0, /* src_mask */
1052 0x3fffc00, /* dst_mask */
1053 false), /* pcrel_offset */
1054
1055 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1056 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */
1057 16, /* rightshift */
1058 2, /* size (0 = byte, 1 = short, 2 = long) */
1059 64, /* bitsize */
1060 false, /* pc_relative */
1061 10, /* bitpos */
1062 complain_overflow_dont, /* complain_on_overflow */
1063 bfd_elf_generic_reloc, /* special_function */
1064 "R_SH_GOTOFF_MEDLOW16", /* name */
1065 false, /* partial_inplace */
1066 0, /* src_mask */
1067 0x3fffc00, /* dst_mask */
1068 false), /* pcrel_offset */
1069
1070 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1071 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */
1072 32, /* rightshift */
1073 2, /* size (0 = byte, 1 = short, 2 = long) */
1074 64, /* bitsize */
1075 false, /* pc_relative */
1076 10, /* bitpos */
1077 complain_overflow_dont, /* complain_on_overflow */
1078 bfd_elf_generic_reloc, /* special_function */
1079 "R_SH_GOTOFF_MEDHI16", /* name */
1080 false, /* partial_inplace */
1081 0, /* src_mask */
1082 0x3fffc00, /* dst_mask */
1083 false), /* pcrel_offset */
1084
1085 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1086 HOWTO (R_SH_GOTOFF_HI16, /* type */
1087 48, /* rightshift */
1088 2, /* size (0 = byte, 1 = short, 2 = long) */
1089 64, /* bitsize */
1090 false, /* pc_relative */
1091 10, /* bitpos */
1092 complain_overflow_dont, /* complain_on_overflow */
1093 bfd_elf_generic_reloc, /* special_function */
1094 "R_SH_GOTOFF_HI16", /* name */
1095 false, /* partial_inplace */
1096 0, /* src_mask */
1097 0x3fffc00, /* dst_mask */
1098 false), /* pcrel_offset */
1099
1100 /* Used in MOVI and SHORI (x & 65536). */
1101 HOWTO (R_SH_GOTPC_LOW16, /* type */
1102 0, /* rightshift */
1103 2, /* size (0 = byte, 1 = short, 2 = long) */
1104 64, /* bitsize */
1105 true, /* pc_relative */
1106 10, /* bitpos */
1107 complain_overflow_dont, /* complain_on_overflow */
1108 bfd_elf_generic_reloc, /* special_function */
1109 "R_SH_GOTPC_LOW16", /* name */
1110 false, /* partial_inplace */
1111 0, /* src_mask */
1112 0x3fffc00, /* dst_mask */
1113 true), /* pcrel_offset */
1114
1115 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1116 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */
1117 16, /* rightshift */
1118 2, /* size (0 = byte, 1 = short, 2 = long) */
1119 64, /* bitsize */
1120 true, /* pc_relative */
1121 10, /* bitpos */
1122 complain_overflow_dont, /* complain_on_overflow */
1123 bfd_elf_generic_reloc, /* special_function */
1124 "R_SH_GOTPC_MEDLOW16", /* name */
1125 false, /* partial_inplace */
1126 0, /* src_mask */
1127 0x3fffc00, /* dst_mask */
1128 true), /* pcrel_offset */
1129
1130 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1131 HOWTO (R_SH_GOTPC_MEDHI16, /* type */
1132 32, /* rightshift */
1133 2, /* size (0 = byte, 1 = short, 2 = long) */
1134 64, /* bitsize */
1135 true, /* pc_relative */
1136 10, /* bitpos */
1137 complain_overflow_dont, /* complain_on_overflow */
1138 bfd_elf_generic_reloc, /* special_function */
1139 "R_SH_GOTPC_MEDHI16", /* name */
1140 false, /* partial_inplace */
1141 0, /* src_mask */
1142 0x3fffc00, /* dst_mask */
1143 true), /* pcrel_offset */
1144
1145 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1146 HOWTO (R_SH_GOTPC_HI16, /* type */
1147 48, /* rightshift */
1148 2, /* size (0 = byte, 1 = short, 2 = long) */
1149 64, /* bitsize */
1150 true, /* pc_relative */
1151 10, /* bitpos */
1152 complain_overflow_dont, /* complain_on_overflow */
1153 bfd_elf_generic_reloc, /* special_function */
1154 "R_SH_GOTPC_HI16", /* name */
1155 false, /* partial_inplace */
1156 0, /* src_mask */
1157 0x3fffc00, /* dst_mask */
1158 true), /* pcrel_offset */
1159
1160 /* Used in LD.L, FLD.S et al. */
1161 HOWTO (R_SH_GOT10BY4, /* type */
1162 2, /* rightshift */
1163 2, /* size (0 = byte, 1 = short, 2 = long) */
1164 12, /* bitsize */
1165 false, /* pc_relative */
1166 10, /* bitpos */
1167 complain_overflow_signed, /* complain_on_overflow */
1168 bfd_elf_generic_reloc, /* special_function */
1169 "R_SH_GOT10BY4", /* name */
1170 false, /* partial_inplace */
1171 0, /* src_mask */
1172 0xffc00, /* dst_mask */
1173 false), /* pcrel_offset */
1174
1175 /* Used in LD.L, FLD.S et al. */
1176 HOWTO (R_SH_GOTPLT10BY4, /* type */
1177 2, /* rightshift */
1178 2, /* size (0 = byte, 1 = short, 2 = long) */
1179 12, /* bitsize */
1180 false, /* pc_relative */
1181 10, /* bitpos */
1182 complain_overflow_signed, /* complain_on_overflow */
1183 bfd_elf_generic_reloc, /* special_function */
1184 "R_SH_GOTPLT10BY4", /* name */
1185 false, /* partial_inplace */
1186 0, /* src_mask */
1187 0xffc00, /* dst_mask */
1188 false), /* pcrel_offset */
1189
1190 /* Used in FLD.D, FST.P et al. */
1191 HOWTO (R_SH_GOT10BY8, /* type */
1192 3, /* rightshift */
1193 2, /* size (0 = byte, 1 = short, 2 = long) */
1194 13, /* bitsize */
1195 false, /* pc_relative */
1196 10, /* bitpos */
1197 complain_overflow_signed, /* complain_on_overflow */
1198 bfd_elf_generic_reloc, /* special_function */
1199 "R_SH_GOT10BY8", /* name */
1200 false, /* partial_inplace */
1201 0, /* src_mask */
1202 0xffc00, /* dst_mask */
1203 false), /* pcrel_offset */
1204
1205 /* Used in FLD.D, FST.P et al. */
1206 HOWTO (R_SH_GOTPLT10BY8, /* type */
1207 3, /* rightshift */
1208 2, /* size (0 = byte, 1 = short, 2 = long) */
1209 13, /* bitsize */
1210 false, /* pc_relative */
1211 10, /* bitpos */
1212 complain_overflow_signed, /* complain_on_overflow */
1213 bfd_elf_generic_reloc, /* special_function */
1214 "R_SH_GOTPLT10BY8", /* name */
1215 false, /* partial_inplace */
1216 0, /* src_mask */
1217 0xffc00, /* dst_mask */
1218 false), /* pcrel_offset */
1219
1220 HOWTO (R_SH_COPY64, /* type */
1221 0, /* rightshift */
1222 4, /* size (0 = byte, 1 = short, 2 = long) */
1223 64, /* bitsize */
1224 false, /* pc_relative */
1225 0, /* bitpos */
1226 complain_overflow_dont, /* complain_on_overflow */
1227 bfd_elf_generic_reloc, /* special_function */
1228 "R_SH_COPY64", /* name */
1229 false, /* partial_inplace */
1230 0, /* src_mask */
1231 ((bfd_vma) 0) - 1, /* dst_mask */
1232 false), /* pcrel_offset */
1233
1234 HOWTO (R_SH_GLOB_DAT64, /* type */
1235 0, /* rightshift */
1236 4, /* size (0 = byte, 1 = short, 2 = long) */
1237 64, /* bitsize */
1238 false, /* pc_relative */
1239 0, /* bitpos */
1240 complain_overflow_dont, /* complain_on_overflow */
1241 bfd_elf_generic_reloc, /* special_function */
1242 "R_SH_GLOB_DAT64", /* name */
1243 false, /* partial_inplace */
1244 0, /* src_mask */
1245 ((bfd_vma) 0) - 1, /* dst_mask */
1246 false), /* pcrel_offset */
1247
1248 HOWTO (R_SH_JMP_SLOT64, /* type */
1249 0, /* rightshift */
1250 4, /* size (0 = byte, 1 = short, 2 = long) */
1251 64, /* bitsize */
1252 false, /* pc_relative */
1253 0, /* bitpos */
1254 complain_overflow_dont, /* complain_on_overflow */
1255 bfd_elf_generic_reloc, /* special_function */
1256 "R_SH_JMP_SLOT64", /* name */
1257 false, /* partial_inplace */
1258 0, /* src_mask */
1259 ((bfd_vma) 0) - 1, /* dst_mask */
1260 false), /* pcrel_offset */
1261
1262 HOWTO (R_SH_RELATIVE64, /* type */
1263 0, /* rightshift */
1264 4, /* size (0 = byte, 1 = short, 2 = long) */
1265 64, /* bitsize */
1266 false, /* pc_relative */
1267 0, /* bitpos */
1268 complain_overflow_dont, /* complain_on_overflow */
1269 bfd_elf_generic_reloc, /* special_function */
1270 "R_SH_RELATIVE64", /* name */
1271 false, /* partial_inplace */
1272 0, /* src_mask */
1273 ((bfd_vma) 0) - 1, /* dst_mask */
1274 false), /* pcrel_offset */
1275
1276 EMPTY_HOWTO (197),
1277 EMPTY_HOWTO (198),
1278 EMPTY_HOWTO (199),
1279 EMPTY_HOWTO (200),
1280 EMPTY_HOWTO (201),
1281 EMPTY_HOWTO (202),
1282 EMPTY_HOWTO (203),
1283 EMPTY_HOWTO (204),
1284 EMPTY_HOWTO (205),
1285 EMPTY_HOWTO (206),
1286 EMPTY_HOWTO (207),
1287 EMPTY_HOWTO (208),
1288 EMPTY_HOWTO (209),
1289 EMPTY_HOWTO (210),
1290 EMPTY_HOWTO (211),
1291 EMPTY_HOWTO (212),
1292 EMPTY_HOWTO (213),
1293 EMPTY_HOWTO (214),
1294 EMPTY_HOWTO (215),
1295 EMPTY_HOWTO (216),
1296 EMPTY_HOWTO (217),
1297 EMPTY_HOWTO (218),
1298 EMPTY_HOWTO (219),
1299 EMPTY_HOWTO (220),
1300 EMPTY_HOWTO (221),
1301 EMPTY_HOWTO (222),
1302 EMPTY_HOWTO (223),
1303 EMPTY_HOWTO (224),
1304 EMPTY_HOWTO (225),
1305 EMPTY_HOWTO (226),
1306 EMPTY_HOWTO (227),
1307 EMPTY_HOWTO (228),
1308 EMPTY_HOWTO (229),
1309 EMPTY_HOWTO (230),
1310 EMPTY_HOWTO (231),
1311 EMPTY_HOWTO (232),
1312 EMPTY_HOWTO (233),
1313 EMPTY_HOWTO (234),
1314 EMPTY_HOWTO (235),
1315 EMPTY_HOWTO (236),
1316 EMPTY_HOWTO (237),
1317 EMPTY_HOWTO (238),
1318 EMPTY_HOWTO (239),
1319 EMPTY_HOWTO (240),
1320 EMPTY_HOWTO (241),
1321
1322 /* Relocations for SHmedia code. None of these are partial_inplace or
1323 use the field being relocated (except R_SH_PT_16). */
1324
1325 /* The assembler will generate this reloc before a block of SHmedia
1326 instructions. A section should be processed as assuming it contains
1327 data, unless this reloc is seen. Note that a block of SHcompact
1328 instructions are instead preceded by R_SH_CODE.
1329 This is currently not implemented, but should be used for SHmedia
1330 linker relaxation. */
1331 HOWTO (R_SH_SHMEDIA_CODE, /* type */
1332 0, /* rightshift */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1334 0, /* bitsize */
1335 false, /* pc_relative */
1336 0, /* bitpos */
1337 complain_overflow_unsigned, /* complain_on_overflow */
1338 sh_elf_ignore_reloc, /* special_function */
1339 "R_SH_SHMEDIA_CODE", /* name */
1340 false, /* partial_inplace */
1341 0, /* src_mask */
1342 0, /* dst_mask */
1343 false), /* pcrel_offset */
1344
1345 /* The assembler will generate this reloc at a PTA or PTB instruction,
1346 and the linker checks the right type of target, or changes a PTA to a
1347 PTB, if the original insn was PT. */
1348 HOWTO (R_SH_PT_16, /* type */
1349 2, /* rightshift */
1350 2, /* size (0 = byte, 1 = short, 2 = long) */
1351 18, /* bitsize */
1352 true, /* pc_relative */
1353 10, /* bitpos */
1354 complain_overflow_signed, /* complain_on_overflow */
1355 bfd_elf_generic_reloc, /* special_function */
1356 "R_SH_PT_16", /* name */
1357 false, /* partial_inplace */
1358 0, /* src_mask */
1359 0x3fffc00, /* dst_mask */
1360 true), /* pcrel_offset */
1361
1362 /* Used in unexpanded MOVI. */
1363 HOWTO (R_SH_IMMS16, /* type */
1364 0, /* rightshift */
1365 2, /* size (0 = byte, 1 = short, 2 = long) */
1366 16, /* bitsize */
1367 false, /* pc_relative */
1368 10, /* bitpos */
1369 complain_overflow_signed, /* complain_on_overflow */
1370 bfd_elf_generic_reloc, /* special_function */
1371 "R_SH_IMMS16", /* name */
1372 false, /* partial_inplace */
1373 0, /* src_mask */
1374 0x3fffc00, /* dst_mask */
1375 false), /* pcrel_offset */
1376
1377 /* Used in SHORI. */
1378 HOWTO (R_SH_IMMU16, /* type */
1379 0, /* rightshift */
1380 2, /* size (0 = byte, 1 = short, 2 = long) */
1381 16, /* bitsize */
1382 false, /* pc_relative */
1383 10, /* bitpos */
1384 complain_overflow_unsigned, /* complain_on_overflow */
1385 bfd_elf_generic_reloc, /* special_function */
1386 "R_SH_IMMU16", /* name */
1387 false, /* partial_inplace */
1388 0, /* src_mask */
1389 0x3fffc00, /* dst_mask */
1390 false), /* pcrel_offset */
1391
1392 /* Used in MOVI and SHORI (x & 65536). */
1393 HOWTO (R_SH_IMM_LOW16, /* type */
1394 0, /* rightshift */
1395 2, /* size (0 = byte, 1 = short, 2 = long) */
1396 64, /* bitsize */
1397 false, /* pc_relative */
1398 10, /* bitpos */
1399 complain_overflow_dont, /* complain_on_overflow */
1400 bfd_elf_generic_reloc, /* special_function */
1401 "R_SH_IMM_LOW16", /* name */
1402 false, /* partial_inplace */
1403 0, /* src_mask */
1404 0x3fffc00, /* dst_mask */
1405 false), /* pcrel_offset */
1406
1407 /* Used in MOVI and SHORI ((x - $) & 65536). */
1408 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */
1409 0, /* rightshift */
1410 2, /* size (0 = byte, 1 = short, 2 = long) */
1411 64, /* bitsize */
1412 true, /* pc_relative */
1413 10, /* bitpos */
1414 complain_overflow_dont, /* complain_on_overflow */
1415 bfd_elf_generic_reloc, /* special_function */
1416 "R_SH_IMM_LOW16_PCREL", /* name */
1417 false, /* partial_inplace */
1418 0, /* src_mask */
1419 0x3fffc00, /* dst_mask */
1420 true), /* pcrel_offset */
1421
1422 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1423 HOWTO (R_SH_IMM_MEDLOW16, /* type */
1424 16, /* rightshift */
1425 2, /* size (0 = byte, 1 = short, 2 = long) */
1426 64, /* bitsize */
1427 false, /* pc_relative */
1428 10, /* bitpos */
1429 complain_overflow_dont, /* complain_on_overflow */
1430 bfd_elf_generic_reloc, /* special_function */
1431 "R_SH_IMM_MEDLOW16", /* name */
1432 false, /* partial_inplace */
1433 0, /* src_mask */
1434 0x3fffc00, /* dst_mask */
1435 false), /* pcrel_offset */
1436
1437 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
1438 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
1439 16, /* rightshift */
1440 2, /* size (0 = byte, 1 = short, 2 = long) */
1441 64, /* bitsize */
1442 true, /* pc_relative */
1443 10, /* bitpos */
1444 complain_overflow_dont, /* complain_on_overflow */
1445 bfd_elf_generic_reloc, /* special_function */
1446 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1447 false, /* partial_inplace */
1448 0, /* src_mask */
1449 0x3fffc00, /* dst_mask */
1450 true), /* pcrel_offset */
1451
1452 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1453 HOWTO (R_SH_IMM_MEDHI16, /* type */
1454 32, /* rightshift */
1455 2, /* size (0 = byte, 1 = short, 2 = long) */
1456 64, /* bitsize */
1457 false, /* pc_relative */
1458 10, /* bitpos */
1459 complain_overflow_dont, /* complain_on_overflow */
1460 bfd_elf_generic_reloc, /* special_function */
1461 "R_SH_IMM_MEDHI16", /* name */
1462 false, /* partial_inplace */
1463 0, /* src_mask */
1464 0x3fffc00, /* dst_mask */
1465 false), /* pcrel_offset */
1466
1467 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
1468 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
1469 32, /* rightshift */
1470 2, /* size (0 = byte, 1 = short, 2 = long) */
1471 64, /* bitsize */
1472 true, /* pc_relative */
1473 10, /* bitpos */
1474 complain_overflow_dont, /* complain_on_overflow */
1475 bfd_elf_generic_reloc, /* special_function */
1476 "R_SH_IMM_MEDHI16_PCREL", /* name */
1477 false, /* partial_inplace */
1478 0, /* src_mask */
1479 0x3fffc00, /* dst_mask */
1480 true), /* pcrel_offset */
1481
1482 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1483 HOWTO (R_SH_IMM_HI16, /* type */
1484 48, /* rightshift */
1485 2, /* size (0 = byte, 1 = short, 2 = long) */
1486 64, /* bitsize */
1487 false, /* pc_relative */
1488 10, /* bitpos */
1489 complain_overflow_dont, /* complain_on_overflow */
1490 bfd_elf_generic_reloc, /* special_function */
1491 "R_SH_IMM_HI16", /* name */
1492 false, /* partial_inplace */
1493 0, /* src_mask */
1494 0x3fffc00, /* dst_mask */
1495 false), /* pcrel_offset */
1496
1497 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
1498 HOWTO (R_SH_IMM_HI16_PCREL, /* type */
1499 48, /* rightshift */
1500 2, /* size (0 = byte, 1 = short, 2 = long) */
1501 64, /* bitsize */
1502 true, /* pc_relative */
1503 10, /* bitpos */
1504 complain_overflow_dont, /* complain_on_overflow */
1505 bfd_elf_generic_reloc, /* special_function */
1506 "R_SH_IMM_HI16_PCREL", /* name */
1507 false, /* partial_inplace */
1508 0, /* src_mask */
1509 0x3fffc00, /* dst_mask */
1510 true), /* pcrel_offset */
1511
1512 /* For the .uaquad pseudo. */
1513 HOWTO (R_SH_64, /* type */
1514 0, /* rightshift */
1515 4, /* size (0 = byte, 1 = short, 2 = long) */
1516 64, /* bitsize */
1517 false, /* pc_relative */
1518 0, /* bitpos */
1519 complain_overflow_dont, /* complain_on_overflow */
1520 bfd_elf_generic_reloc, /* special_function */
1521 "R_SH_64", /* name */
1522 false, /* partial_inplace */
1523 0, /* src_mask */
1524 ((bfd_vma) 0) - 1, /* dst_mask */
1525 false), /* pcrel_offset */
1526
1527 /* For the .uaquad pseudo, (x - $). */
1528 HOWTO (R_SH_64_PCREL, /* type */
1529 48, /* rightshift */
1530 2, /* size (0 = byte, 1 = short, 2 = long) */
1531 64, /* bitsize */
1532 true, /* pc_relative */
1533 10, /* bitpos */
1534 complain_overflow_dont, /* complain_on_overflow */
1535 bfd_elf_generic_reloc, /* special_function */
1536 "R_SH_64_PCREL", /* name */
1537 false, /* partial_inplace */
1538 0, /* src_mask */
1539 ((bfd_vma) 0) - 1, /* dst_mask */
1540 true), /* pcrel_offset */
1541
1542 #endif
1543 };
1544
1545 static bfd_reloc_status_type
1546 sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, addr,
1547 symbol_section, start, end)
1548 int r_type ATTRIBUTE_UNUSED;
1549 bfd *input_bfd;
1550 asection *input_section;
1551 bfd_byte *contents;
1552 bfd_vma addr;
1553 asection *symbol_section;
1554 bfd_vma start, end;
1555 {
1556 static bfd_vma last_addr;
1557 static asection *last_symbol_section;
1558 bfd_byte *start_ptr, *ptr, *last_ptr;
1559 int diff, cum_diff;
1560 bfd_signed_vma x;
1561 int insn;
1562
1563 /* Sanity check the address. */
1564 if (addr > input_section->_raw_size)
1565 return bfd_reloc_outofrange;
1566
1567 /* We require the start and end relocations to be processed consecutively -
1568 although we allow then to be processed forwards or backwards. */
1569 if (! last_addr)
1570 {
1571 last_addr = addr;
1572 last_symbol_section = symbol_section;
1573 return bfd_reloc_ok;
1574 }
1575 if (last_addr != addr)
1576 abort ();
1577 last_addr = 0;
1578
1579 if (! symbol_section || last_symbol_section != symbol_section || end < start)
1580 return bfd_reloc_outofrange;
1581
1582 /* Get the symbol_section contents. */
1583 if (symbol_section != input_section)
1584 {
1585 if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
1586 contents = elf_section_data (symbol_section)->this_hdr.contents;
1587 else
1588 {
1589 contents = (bfd_byte *) bfd_malloc (symbol_section->_raw_size);
1590 if (contents == NULL)
1591 return bfd_reloc_outofrange;
1592 if (! bfd_get_section_contents (input_bfd, symbol_section, contents,
1593 (file_ptr) 0,
1594 symbol_section->_raw_size))
1595 {
1596 free (contents);
1597 return bfd_reloc_outofrange;
1598 }
1599 }
1600 }
1601 #define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
1602 start_ptr = contents + start;
1603 for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
1604 {
1605 for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
1606 ptr -= 2;
1607 ptr += 2;
1608 diff = (last_ptr - ptr) >> 1;
1609 cum_diff += diff & 1;
1610 cum_diff += diff;
1611 }
1612 /* Calculate the start / end values to load into rs / re minus four -
1613 so that will cancel out the four we would otherwise have to add to
1614 addr to get the value to subtract in order to get relative addressing. */
1615 if (cum_diff >= 0)
1616 {
1617 start -= 4;
1618 end = (ptr + cum_diff * 2) - contents;
1619 }
1620 else
1621 {
1622 bfd_vma start0 = start - 4;
1623
1624 while (start0 && IS_PPI (contents + start0))
1625 start0 -= 2;
1626 start0 = start - 2 - ((start - start0) & 2);
1627 start = start0 - cum_diff - 2;
1628 end = start0;
1629 }
1630
1631 if (contents != NULL
1632 && elf_section_data (symbol_section)->this_hdr.contents != contents)
1633 free (contents);
1634
1635 insn = bfd_get_16 (input_bfd, contents + addr);
1636
1637 x = (insn & 0x200 ? end : start) - addr;
1638 if (input_section != symbol_section)
1639 x += ((symbol_section->output_section->vma + symbol_section->output_offset)
1640 - (input_section->output_section->vma
1641 + input_section->output_offset));
1642 x >>= 1;
1643 if (x < -128 || x > 127)
1644 return bfd_reloc_overflow;
1645
1646 x = (insn & ~0xff) | (x & 0xff);
1647 bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
1648
1649 return bfd_reloc_ok;
1650 }
1651
1652 /* This function is used for normal relocs. This used to be like the COFF
1653 function, and is almost certainly incorrect for other ELF targets. */
1654
1655 static bfd_reloc_status_type
1656 sh_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
1657 error_message)
1658 bfd *abfd;
1659 arelent *reloc_entry;
1660 asymbol *symbol_in;
1661 PTR data;
1662 asection *input_section;
1663 bfd *output_bfd;
1664 char **error_message ATTRIBUTE_UNUSED;
1665 {
1666 unsigned long insn;
1667 bfd_vma sym_value;
1668 enum elf_sh_reloc_type r_type;
1669 bfd_vma addr = reloc_entry->address;
1670 bfd_byte *hit_data = addr + (bfd_byte *) data;
1671
1672 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
1673
1674 if (output_bfd != NULL)
1675 {
1676 /* Partial linking--do nothing. */
1677 reloc_entry->address += input_section->output_offset;
1678 return bfd_reloc_ok;
1679 }
1680
1681 /* Almost all relocs have to do with relaxing. If any work must be
1682 done for them, it has been done in sh_relax_section. */
1683 if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
1684 return bfd_reloc_ok;
1685
1686 if (symbol_in != NULL
1687 && bfd_is_und_section (symbol_in->section))
1688 return bfd_reloc_undefined;
1689
1690 if (bfd_is_com_section (symbol_in->section))
1691 sym_value = 0;
1692 else
1693 sym_value = (symbol_in->value +
1694 symbol_in->section->output_section->vma +
1695 symbol_in->section->output_offset);
1696
1697 switch (r_type)
1698 {
1699 case R_SH_DIR32:
1700 insn = bfd_get_32 (abfd, hit_data);
1701 insn += sym_value + reloc_entry->addend;
1702 bfd_put_32 (abfd, (bfd_vma) insn, hit_data);
1703 break;
1704 case R_SH_IND12W:
1705 insn = bfd_get_16 (abfd, hit_data);
1706 sym_value += reloc_entry->addend;
1707 sym_value -= (input_section->output_section->vma
1708 + input_section->output_offset
1709 + addr
1710 + 4);
1711 sym_value += (insn & 0xfff) << 1;
1712 if (insn & 0x800)
1713 sym_value -= 0x1000;
1714 insn = (insn & 0xf000) | (sym_value & 0xfff);
1715 bfd_put_16 (abfd, (bfd_vma) insn, hit_data);
1716 if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000)
1717 return bfd_reloc_overflow;
1718 break;
1719 default:
1720 abort ();
1721 break;
1722 }
1723
1724 return bfd_reloc_ok;
1725 }
1726
1727 /* This function is used for relocs which are only used for relaxing,
1728 which the linker should otherwise ignore. */
1729
1730 static bfd_reloc_status_type
1731 sh_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section,
1732 output_bfd, error_message)
1733 bfd *abfd ATTRIBUTE_UNUSED;
1734 arelent *reloc_entry;
1735 asymbol *symbol ATTRIBUTE_UNUSED;
1736 PTR data ATTRIBUTE_UNUSED;
1737 asection *input_section;
1738 bfd *output_bfd;
1739 char **error_message ATTRIBUTE_UNUSED;
1740 {
1741 if (output_bfd != NULL)
1742 reloc_entry->address += input_section->output_offset;
1743 return bfd_reloc_ok;
1744 }
1745
1746 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
1747
1748 struct elf_reloc_map
1749 {
1750 bfd_reloc_code_real_type bfd_reloc_val;
1751 unsigned char elf_reloc_val;
1752 };
1753
1754 /* An array mapping BFD reloc codes to SH ELF relocs. */
1755
1756 static const struct elf_reloc_map sh_reloc_map[] =
1757 {
1758 { BFD_RELOC_NONE, R_SH_NONE },
1759 { BFD_RELOC_32, R_SH_DIR32 },
1760 { BFD_RELOC_CTOR, R_SH_DIR32 },
1761 { BFD_RELOC_32_PCREL, R_SH_REL32 },
1762 { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
1763 { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
1764 { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
1765 { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
1766 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
1767 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
1768 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
1769 { BFD_RELOC_SH_USES, R_SH_USES },
1770 { BFD_RELOC_SH_COUNT, R_SH_COUNT },
1771 { BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
1772 { BFD_RELOC_SH_CODE, R_SH_CODE },
1773 { BFD_RELOC_SH_DATA, R_SH_DATA },
1774 { BFD_RELOC_SH_LABEL, R_SH_LABEL },
1775 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
1776 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
1777 { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
1778 { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
1779 { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 },
1780 { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 },
1781 { BFD_RELOC_SH_COPY, R_SH_COPY },
1782 { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT },
1783 { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT },
1784 { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE },
1785 { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF },
1786 { BFD_RELOC_SH_GOTPC, R_SH_GOTPC },
1787 { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 },
1788 #ifdef INCLUDE_SHMEDIA
1789 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
1790 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
1791 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
1792 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
1793 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
1794 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
1795 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
1796 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
1797 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
1798 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
1799 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
1800 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
1801 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
1802 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
1803 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
1804 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
1805 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
1806 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
1807 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
1808 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
1809 { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
1810 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
1811 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
1812 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
1813 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
1814 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
1815 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
1816 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
1817 { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
1818 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
1819 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
1820 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
1821 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
1822 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
1823 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
1824 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
1825 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
1826 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
1827 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
1828 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
1829 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
1830 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
1831 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
1832 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
1833 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
1834 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
1835 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
1836 { BFD_RELOC_64, R_SH_64 },
1837 { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
1838 #endif /* not INCLUDE_SHMEDIA */
1839 };
1840
1841 /* Given a BFD reloc code, return the howto structure for the
1842 corresponding SH ELf reloc. */
1843
1844 static reloc_howto_type *
1845 sh_elf_reloc_type_lookup (abfd, code)
1846 bfd *abfd ATTRIBUTE_UNUSED;
1847 bfd_reloc_code_real_type code;
1848 {
1849 unsigned int i;
1850
1851 for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
1852 {
1853 if (sh_reloc_map[i].bfd_reloc_val == code)
1854 return &sh_elf_howto_table[(int) sh_reloc_map[i].elf_reloc_val];
1855 }
1856
1857 return NULL;
1858 }
1859
1860 /* Given an ELF reloc, fill in the howto field of a relent. */
1861
1862 static void
1863 sh_elf_info_to_howto (abfd, cache_ptr, dst)
1864 bfd *abfd ATTRIBUTE_UNUSED;
1865 arelent *cache_ptr;
1866 Elf_Internal_Rela *dst;
1867 {
1868 unsigned int r;
1869
1870 r = ELF32_R_TYPE (dst->r_info);
1871
1872 BFD_ASSERT (r < (unsigned int) R_SH_max);
1873 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
1874 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_2 || r > R_SH_LAST_INVALID_RELOC_2);
1875 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_LAST_INVALID_RELOC_3);
1876 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
1877
1878 cache_ptr->howto = &sh_elf_howto_table[r];
1879 }
1880 \f
1881 /* This function handles relaxing for SH ELF. See the corresponding
1882 function in coff-sh.c for a description of what this does. FIXME:
1883 There is a lot of duplication here between this code and the COFF
1884 specific code. The format of relocs and symbols is wound deeply
1885 into this code, but it would still be better if the duplication
1886 could be eliminated somehow. Note in particular that although both
1887 functions use symbols like R_SH_CODE, those symbols have different
1888 values; in coff-sh.c they come from include/coff/sh.h, whereas here
1889 they come from enum elf_sh_reloc_type in include/elf/sh.h. */
1890
1891 static boolean
1892 sh_elf_relax_section (abfd, sec, link_info, again)
1893 bfd *abfd;
1894 asection *sec;
1895 struct bfd_link_info *link_info;
1896 boolean *again;
1897 {
1898 Elf_Internal_Shdr *symtab_hdr;
1899 Elf_Internal_Rela *internal_relocs;
1900 boolean have_code;
1901 Elf_Internal_Rela *irel, *irelend;
1902 bfd_byte *contents = NULL;
1903 Elf_Internal_Sym *isymbuf = NULL;
1904
1905 *again = false;
1906
1907 if (link_info->relocateable
1908 || (sec->flags & SEC_RELOC) == 0
1909 || sec->reloc_count == 0)
1910 return true;
1911
1912 #ifdef INCLUDE_SHMEDIA
1913 if (elf_section_data (sec)->this_hdr.sh_flags
1914 & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED))
1915 {
1916 return true;
1917 }
1918 #endif
1919
1920 /* If this is the first time we have been called for this section,
1921 initialize the cooked size. */
1922 if (sec->_cooked_size == 0)
1923 sec->_cooked_size = sec->_raw_size;
1924
1925 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1926
1927 internal_relocs = (_bfd_elf32_link_read_relocs
1928 (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
1929 link_info->keep_memory));
1930 if (internal_relocs == NULL)
1931 goto error_return;
1932
1933 have_code = false;
1934
1935 irelend = internal_relocs + sec->reloc_count;
1936 for (irel = internal_relocs; irel < irelend; irel++)
1937 {
1938 bfd_vma laddr, paddr, symval;
1939 unsigned short insn;
1940 Elf_Internal_Rela *irelfn, *irelscan, *irelcount;
1941 bfd_signed_vma foff;
1942
1943 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
1944 have_code = true;
1945
1946 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
1947 continue;
1948
1949 /* Get the section contents. */
1950 if (contents == NULL)
1951 {
1952 if (elf_section_data (sec)->this_hdr.contents != NULL)
1953 contents = elf_section_data (sec)->this_hdr.contents;
1954 else
1955 {
1956 contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
1957 if (contents == NULL)
1958 goto error_return;
1959
1960 if (! bfd_get_section_contents (abfd, sec, contents,
1961 (file_ptr) 0, sec->_raw_size))
1962 goto error_return;
1963 }
1964 }
1965
1966 /* The r_addend field of the R_SH_USES reloc will point us to
1967 the register load. The 4 is because the r_addend field is
1968 computed as though it were a jump offset, which are based
1969 from 4 bytes after the jump instruction. */
1970 laddr = irel->r_offset + 4 + irel->r_addend;
1971 if (laddr >= sec->_raw_size)
1972 {
1973 (*_bfd_error_handler) (_("%s: 0x%lx: warning: bad R_SH_USES offset"),
1974 bfd_archive_filename (abfd),
1975 (unsigned long) irel->r_offset);
1976 continue;
1977 }
1978 insn = bfd_get_16 (abfd, contents + laddr);
1979
1980 /* If the instruction is not mov.l NN,rN, we don't know what to
1981 do. */
1982 if ((insn & 0xf000) != 0xd000)
1983 {
1984 ((*_bfd_error_handler)
1985 (_("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
1986 bfd_archive_filename (abfd), (unsigned long) irel->r_offset, insn));
1987 continue;
1988 }
1989
1990 /* Get the address from which the register is being loaded. The
1991 displacement in the mov.l instruction is quadrupled. It is a
1992 displacement from four bytes after the movl instruction, but,
1993 before adding in the PC address, two least significant bits
1994 of the PC are cleared. We assume that the section is aligned
1995 on a four byte boundary. */
1996 paddr = insn & 0xff;
1997 paddr *= 4;
1998 paddr += (laddr + 4) &~ (bfd_vma) 3;
1999 if (paddr >= sec->_raw_size)
2000 {
2001 ((*_bfd_error_handler)
2002 (_("%s: 0x%lx: warning: bad R_SH_USES load offset"),
2003 bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
2004 continue;
2005 }
2006
2007 /* Get the reloc for the address from which the register is
2008 being loaded. This reloc will tell us which function is
2009 actually being called. */
2010 for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
2011 if (irelfn->r_offset == paddr
2012 && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
2013 break;
2014 if (irelfn >= irelend)
2015 {
2016 ((*_bfd_error_handler)
2017 (_("%s: 0x%lx: warning: could not find expected reloc"),
2018 bfd_archive_filename (abfd), (unsigned long) paddr));
2019 continue;
2020 }
2021
2022 /* Read this BFD's symbols if we haven't done so already. */
2023 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
2024 {
2025 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2026 if (isymbuf == NULL)
2027 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
2028 symtab_hdr->sh_info, 0,
2029 NULL, NULL, NULL);
2030 if (isymbuf == NULL)
2031 goto error_return;
2032 }
2033
2034 /* Get the value of the symbol referred to by the reloc. */
2035 if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
2036 {
2037 /* A local symbol. */
2038 Elf_Internal_Sym *isym;
2039
2040 isym = isymbuf + ELF32_R_SYM (irelfn->r_info);
2041 if (isym->st_shndx
2042 != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec))
2043 {
2044 ((*_bfd_error_handler)
2045 (_("%s: 0x%lx: warning: symbol in unexpected section"),
2046 bfd_archive_filename (abfd), (unsigned long) paddr));
2047 continue;
2048 }
2049
2050 symval = (isym->st_value
2051 + sec->output_section->vma
2052 + sec->output_offset);
2053 }
2054 else
2055 {
2056 unsigned long indx;
2057 struct elf_link_hash_entry *h;
2058
2059 indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
2060 h = elf_sym_hashes (abfd)[indx];
2061 BFD_ASSERT (h != NULL);
2062 if (h->root.type != bfd_link_hash_defined
2063 && h->root.type != bfd_link_hash_defweak)
2064 {
2065 /* This appears to be a reference to an undefined
2066 symbol. Just ignore it--it will be caught by the
2067 regular reloc processing. */
2068 continue;
2069 }
2070
2071 symval = (h->root.u.def.value
2072 + h->root.u.def.section->output_section->vma
2073 + h->root.u.def.section->output_offset);
2074 }
2075
2076 symval += bfd_get_32 (abfd, contents + paddr);
2077
2078 /* See if this function call can be shortened. */
2079 foff = (symval
2080 - (irel->r_offset
2081 + sec->output_section->vma
2082 + sec->output_offset
2083 + 4));
2084 if (foff < -0x1000 || foff >= 0x1000)
2085 {
2086 /* After all that work, we can't shorten this function call. */
2087 continue;
2088 }
2089
2090 /* Shorten the function call. */
2091
2092 /* For simplicity of coding, we are going to modify the section
2093 contents, the section relocs, and the BFD symbol table. We
2094 must tell the rest of the code not to free up this
2095 information. It would be possible to instead create a table
2096 of changes which have to be made, as is done in coff-mips.c;
2097 that would be more work, but would require less memory when
2098 the linker is run. */
2099
2100 elf_section_data (sec)->relocs = internal_relocs;
2101 elf_section_data (sec)->this_hdr.contents = contents;
2102 symtab_hdr->contents = (unsigned char *) isymbuf;
2103
2104 /* Replace the jsr with a bsr. */
2105
2106 /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
2107 replace the jsr with a bsr. */
2108 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
2109 if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
2110 {
2111 /* If this needs to be changed because of future relaxing,
2112 it will be handled here like other internal IND12W
2113 relocs. */
2114 bfd_put_16 (abfd,
2115 (bfd_vma) 0xb000 | ((foff >> 1) & 0xfff),
2116 contents + irel->r_offset);
2117 }
2118 else
2119 {
2120 /* We can't fully resolve this yet, because the external
2121 symbol value may be changed by future relaxing. We let
2122 the final link phase handle it. */
2123 bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
2124 }
2125
2126 /* See if there is another R_SH_USES reloc referring to the same
2127 register load. */
2128 for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
2129 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
2130 && laddr == irelscan->r_offset + 4 + irelscan->r_addend)
2131 break;
2132 if (irelscan < irelend)
2133 {
2134 /* Some other function call depends upon this register load,
2135 and we have not yet converted that function call.
2136 Indeed, we may never be able to convert it. There is
2137 nothing else we can do at this point. */
2138 continue;
2139 }
2140
2141 /* Look for a R_SH_COUNT reloc on the location where the
2142 function address is stored. Do this before deleting any
2143 bytes, to avoid confusion about the address. */
2144 for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
2145 if (irelcount->r_offset == paddr
2146 && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
2147 break;
2148
2149 /* Delete the register load. */
2150 if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
2151 goto error_return;
2152
2153 /* That will change things, so, just in case it permits some
2154 other function call to come within range, we should relax
2155 again. Note that this is not required, and it may be slow. */
2156 *again = true;
2157
2158 /* Now check whether we got a COUNT reloc. */
2159 if (irelcount >= irelend)
2160 {
2161 ((*_bfd_error_handler)
2162 (_("%s: 0x%lx: warning: could not find expected COUNT reloc"),
2163 bfd_archive_filename (abfd), (unsigned long) paddr));
2164 continue;
2165 }
2166
2167 /* The number of uses is stored in the r_addend field. We've
2168 just deleted one. */
2169 if (irelcount->r_addend == 0)
2170 {
2171 ((*_bfd_error_handler) (_("%s: 0x%lx: warning: bad count"),
2172 bfd_archive_filename (abfd),
2173 (unsigned long) paddr));
2174 continue;
2175 }
2176
2177 --irelcount->r_addend;
2178
2179 /* If there are no more uses, we can delete the address. Reload
2180 the address from irelfn, in case it was changed by the
2181 previous call to sh_elf_relax_delete_bytes. */
2182 if (irelcount->r_addend == 0)
2183 {
2184 if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
2185 goto error_return;
2186 }
2187
2188 /* We've done all we can with that function call. */
2189 }
2190
2191 /* Look for load and store instructions that we can align on four
2192 byte boundaries. */
2193 if (have_code)
2194 {
2195 boolean swapped;
2196
2197 /* Get the section contents. */
2198 if (contents == NULL)
2199 {
2200 if (elf_section_data (sec)->this_hdr.contents != NULL)
2201 contents = elf_section_data (sec)->this_hdr.contents;
2202 else
2203 {
2204 contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
2205 if (contents == NULL)
2206 goto error_return;
2207
2208 if (! bfd_get_section_contents (abfd, sec, contents,
2209 (file_ptr) 0, sec->_raw_size))
2210 goto error_return;
2211 }
2212 }
2213
2214 if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
2215 &swapped))
2216 goto error_return;
2217
2218 if (swapped)
2219 {
2220 elf_section_data (sec)->relocs = internal_relocs;
2221 elf_section_data (sec)->this_hdr.contents = contents;
2222 symtab_hdr->contents = (unsigned char *) isymbuf;
2223 }
2224 }
2225
2226 if (isymbuf != NULL
2227 && symtab_hdr->contents != (unsigned char *) isymbuf)
2228 {
2229 if (! link_info->keep_memory)
2230 free (isymbuf);
2231 else
2232 {
2233 /* Cache the symbols for elf_link_input_bfd. */
2234 symtab_hdr->contents = (unsigned char *) isymbuf;
2235 }
2236 }
2237
2238 if (contents != NULL
2239 && elf_section_data (sec)->this_hdr.contents != contents)
2240 {
2241 if (! link_info->keep_memory)
2242 free (contents);
2243 else
2244 {
2245 /* Cache the section contents for elf_link_input_bfd. */
2246 elf_section_data (sec)->this_hdr.contents = contents;
2247 }
2248 }
2249
2250 if (internal_relocs != NULL
2251 && elf_section_data (sec)->relocs != internal_relocs)
2252 free (internal_relocs);
2253
2254 return true;
2255
2256 error_return:
2257 if (isymbuf != NULL
2258 && symtab_hdr->contents != (unsigned char *) isymbuf)
2259 free (isymbuf);
2260 if (contents != NULL
2261 && elf_section_data (sec)->this_hdr.contents != contents)
2262 free (contents);
2263 if (internal_relocs != NULL
2264 && elf_section_data (sec)->relocs != internal_relocs)
2265 free (internal_relocs);
2266
2267 return false;
2268 }
2269
2270 /* Delete some bytes from a section while relaxing. FIXME: There is a
2271 lot of duplication between this function and sh_relax_delete_bytes
2272 in coff-sh.c. */
2273
2274 static boolean
2275 sh_elf_relax_delete_bytes (abfd, sec, addr, count)
2276 bfd *abfd;
2277 asection *sec;
2278 bfd_vma addr;
2279 int count;
2280 {
2281 Elf_Internal_Shdr *symtab_hdr;
2282 unsigned int sec_shndx;
2283 bfd_byte *contents;
2284 Elf_Internal_Rela *irel, *irelend;
2285 Elf_Internal_Rela *irelalign;
2286 bfd_vma toaddr;
2287 Elf_Internal_Sym *isymbuf, *isym, *isymend;
2288 struct elf_link_hash_entry **sym_hashes;
2289 struct elf_link_hash_entry **end_hashes;
2290 unsigned int symcount;
2291 asection *o;
2292
2293 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2294 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2295
2296 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
2297
2298 contents = elf_section_data (sec)->this_hdr.contents;
2299
2300 /* The deletion must stop at the next ALIGN reloc for an aligment
2301 power larger than the number of bytes we are deleting. */
2302
2303 irelalign = NULL;
2304 toaddr = sec->_cooked_size;
2305
2306 irel = elf_section_data (sec)->relocs;
2307 irelend = irel + sec->reloc_count;
2308 for (; irel < irelend; irel++)
2309 {
2310 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
2311 && irel->r_offset > addr
2312 && count < (1 << irel->r_addend))
2313 {
2314 irelalign = irel;
2315 toaddr = irel->r_offset;
2316 break;
2317 }
2318 }
2319
2320 /* Actually delete the bytes. */
2321 memmove (contents + addr, contents + addr + count,
2322 (size_t) (toaddr - addr - count));
2323 if (irelalign == NULL)
2324 sec->_cooked_size -= count;
2325 else
2326 {
2327 int i;
2328
2329 #define NOP_OPCODE (0x0009)
2330
2331 BFD_ASSERT ((count & 1) == 0);
2332 for (i = 0; i < count; i += 2)
2333 bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
2334 }
2335
2336 /* Adjust all the relocs. */
2337 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
2338 {
2339 bfd_vma nraddr, stop;
2340 bfd_vma start = 0;
2341 int insn = 0;
2342 int off, adjust, oinsn;
2343 bfd_signed_vma voff = 0;
2344 boolean overflow;
2345
2346 /* Get the new reloc address. */
2347 nraddr = irel->r_offset;
2348 if ((irel->r_offset > addr
2349 && irel->r_offset < toaddr)
2350 || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
2351 && irel->r_offset == toaddr))
2352 nraddr -= count;
2353
2354 /* See if this reloc was for the bytes we have deleted, in which
2355 case we no longer care about it. Don't delete relocs which
2356 represent addresses, though. */
2357 if (irel->r_offset >= addr
2358 && irel->r_offset < addr + count
2359 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
2360 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
2361 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
2362 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
2363 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2364 (int) R_SH_NONE);
2365
2366 /* If this is a PC relative reloc, see if the range it covers
2367 includes the bytes we have deleted. */
2368 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
2369 {
2370 default:
2371 break;
2372
2373 case R_SH_DIR8WPN:
2374 case R_SH_IND12W:
2375 case R_SH_DIR8WPZ:
2376 case R_SH_DIR8WPL:
2377 start = irel->r_offset;
2378 insn = bfd_get_16 (abfd, contents + nraddr);
2379 break;
2380 }
2381
2382 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
2383 {
2384 default:
2385 start = stop = addr;
2386 break;
2387
2388 case R_SH_DIR32:
2389 /* If this reloc is against a symbol defined in this
2390 section, and the symbol will not be adjusted below, we
2391 must check the addend to see it will put the value in
2392 range to be adjusted, and hence must be changed. */
2393 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
2394 {
2395 isym = isymbuf + ELF32_R_SYM (irel->r_info);
2396 if (isym->st_shndx == sec_shndx
2397 && (isym->st_value <= addr
2398 || isym->st_value >= toaddr))
2399 {
2400 bfd_vma val;
2401
2402 val = bfd_get_32 (abfd, contents + nraddr);
2403 val += isym->st_value;
2404 if (val > addr && val < toaddr)
2405 bfd_put_32 (abfd, val - count, contents + nraddr);
2406 }
2407 }
2408 start = stop = addr;
2409 break;
2410
2411 case R_SH_DIR8WPN:
2412 off = insn & 0xff;
2413 if (off & 0x80)
2414 off -= 0x100;
2415 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
2416 break;
2417
2418 case R_SH_IND12W:
2419 if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info)
2420 start = stop = addr;
2421 else
2422 {
2423 off = insn & 0xfff;
2424 if (off & 0x800)
2425 off -= 0x1000;
2426 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
2427 }
2428 break;
2429
2430 case R_SH_DIR8WPZ:
2431 off = insn & 0xff;
2432 stop = start + 4 + off * 2;
2433 break;
2434
2435 case R_SH_DIR8WPL:
2436 off = insn & 0xff;
2437 stop = (start & ~(bfd_vma) 3) + 4 + off * 4;
2438 break;
2439
2440 case R_SH_SWITCH8:
2441 case R_SH_SWITCH16:
2442 case R_SH_SWITCH32:
2443 /* These relocs types represent
2444 .word L2-L1
2445 The r_addend field holds the difference between the reloc
2446 address and L1. That is the start of the reloc, and
2447 adding in the contents gives us the top. We must adjust
2448 both the r_offset field and the section contents.
2449 N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
2450 and the elf bfd r_offset is called r_vaddr. */
2451
2452 stop = irel->r_offset;
2453 start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
2454
2455 if (start > addr
2456 && start < toaddr
2457 && (stop <= addr || stop >= toaddr))
2458 irel->r_addend += count;
2459 else if (stop > addr
2460 && stop < toaddr
2461 && (start <= addr || start >= toaddr))
2462 irel->r_addend -= count;
2463
2464 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
2465 voff = bfd_get_signed_16 (abfd, contents + nraddr);
2466 else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
2467 voff = bfd_get_8 (abfd, contents + nraddr);
2468 else
2469 voff = bfd_get_signed_32 (abfd, contents + nraddr);
2470 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
2471
2472 break;
2473
2474 case R_SH_USES:
2475 start = irel->r_offset;
2476 stop = (bfd_vma) ((bfd_signed_vma) start
2477 + (long) irel->r_addend
2478 + 4);
2479 break;
2480 }
2481
2482 if (start > addr
2483 && start < toaddr
2484 && (stop <= addr || stop >= toaddr))
2485 adjust = count;
2486 else if (stop > addr
2487 && stop < toaddr
2488 && (start <= addr || start >= toaddr))
2489 adjust = - count;
2490 else
2491 adjust = 0;
2492
2493 if (adjust != 0)
2494 {
2495 oinsn = insn;
2496 overflow = false;
2497 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
2498 {
2499 default:
2500 abort ();
2501 break;
2502
2503 case R_SH_DIR8WPN:
2504 case R_SH_DIR8WPZ:
2505 insn += adjust / 2;
2506 if ((oinsn & 0xff00) != (insn & 0xff00))
2507 overflow = true;
2508 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
2509 break;
2510
2511 case R_SH_IND12W:
2512 insn += adjust / 2;
2513 if ((oinsn & 0xf000) != (insn & 0xf000))
2514 overflow = true;
2515 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
2516 break;
2517
2518 case R_SH_DIR8WPL:
2519 BFD_ASSERT (adjust == count || count >= 4);
2520 if (count >= 4)
2521 insn += adjust / 4;
2522 else
2523 {
2524 if ((irel->r_offset & 3) == 0)
2525 ++insn;
2526 }
2527 if ((oinsn & 0xff00) != (insn & 0xff00))
2528 overflow = true;
2529 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
2530 break;
2531
2532 case R_SH_SWITCH8:
2533 voff += adjust;
2534 if (voff < 0 || voff >= 0xff)
2535 overflow = true;
2536 bfd_put_8 (abfd, voff, contents + nraddr);
2537 break;
2538
2539 case R_SH_SWITCH16:
2540 voff += adjust;
2541 if (voff < - 0x8000 || voff >= 0x8000)
2542 overflow = true;
2543 bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
2544 break;
2545
2546 case R_SH_SWITCH32:
2547 voff += adjust;
2548 bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
2549 break;
2550
2551 case R_SH_USES:
2552 irel->r_addend += adjust;
2553 break;
2554 }
2555
2556 if (overflow)
2557 {
2558 ((*_bfd_error_handler)
2559 (_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
2560 bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
2561 bfd_set_error (bfd_error_bad_value);
2562 return false;
2563 }
2564 }
2565
2566 irel->r_offset = nraddr;
2567 }
2568
2569 /* Look through all the other sections. If there contain any IMM32
2570 relocs against internal symbols which we are not going to adjust
2571 below, we may need to adjust the addends. */
2572 for (o = abfd->sections; o != NULL; o = o->next)
2573 {
2574 Elf_Internal_Rela *internal_relocs;
2575 Elf_Internal_Rela *irelscan, *irelscanend;
2576 bfd_byte *ocontents;
2577
2578 if (o == sec
2579 || (o->flags & SEC_RELOC) == 0
2580 || o->reloc_count == 0)
2581 continue;
2582
2583 /* We always cache the relocs. Perhaps, if info->keep_memory is
2584 false, we should free them, if we are permitted to, when we
2585 leave sh_coff_relax_section. */
2586 internal_relocs = (_bfd_elf32_link_read_relocs
2587 (abfd, o, (PTR) NULL, (Elf_Internal_Rela *) NULL,
2588 true));
2589 if (internal_relocs == NULL)
2590 return false;
2591
2592 ocontents = NULL;
2593 irelscanend = internal_relocs + o->reloc_count;
2594 for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
2595 {
2596 /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
2597 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
2598 {
2599 bfd_vma start, stop;
2600 bfd_signed_vma voff;
2601
2602 if (ocontents == NULL)
2603 {
2604 if (elf_section_data (o)->this_hdr.contents != NULL)
2605 ocontents = elf_section_data (o)->this_hdr.contents;
2606 else
2607 {
2608 /* We always cache the section contents.
2609 Perhaps, if info->keep_memory is false, we
2610 should free them, if we are permitted to,
2611 when we leave sh_coff_relax_section. */
2612 ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
2613 if (ocontents == NULL)
2614 return false;
2615 if (! bfd_get_section_contents (abfd, o, ocontents,
2616 (file_ptr) 0,
2617 o->_raw_size))
2618 return false;
2619 elf_section_data (o)->this_hdr.contents = ocontents;
2620 }
2621 }
2622
2623 stop = irelscan->r_offset;
2624 start
2625 = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
2626
2627 /* STOP is in a different section, so it won't change. */
2628 if (start > addr && start < toaddr)
2629 irelscan->r_addend += count;
2630
2631 voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
2632 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
2633
2634 if (start > addr
2635 && start < toaddr
2636 && (stop <= addr || stop >= toaddr))
2637 bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
2638 ocontents + irelscan->r_offset);
2639 else if (stop > addr
2640 && stop < toaddr
2641 && (start <= addr || start >= toaddr))
2642 bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
2643 ocontents + irelscan->r_offset);
2644 }
2645
2646 if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
2647 continue;
2648
2649 if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
2650 continue;
2651
2652
2653 isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
2654 if (isym->st_shndx == sec_shndx
2655 && (isym->st_value <= addr
2656 || isym->st_value >= toaddr))
2657 {
2658 bfd_vma val;
2659
2660 if (ocontents == NULL)
2661 {
2662 if (elf_section_data (o)->this_hdr.contents != NULL)
2663 ocontents = elf_section_data (o)->this_hdr.contents;
2664 else
2665 {
2666 /* We always cache the section contents.
2667 Perhaps, if info->keep_memory is false, we
2668 should free them, if we are permitted to,
2669 when we leave sh_coff_relax_section. */
2670 ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
2671 if (ocontents == NULL)
2672 return false;
2673 if (! bfd_get_section_contents (abfd, o, ocontents,
2674 (file_ptr) 0,
2675 o->_raw_size))
2676 return false;
2677 elf_section_data (o)->this_hdr.contents = ocontents;
2678 }
2679 }
2680
2681 val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
2682 val += isym->st_value;
2683 if (val > addr && val < toaddr)
2684 bfd_put_32 (abfd, val - count,
2685 ocontents + irelscan->r_offset);
2686 }
2687 }
2688 }
2689
2690 /* Adjust the local symbols defined in this section. */
2691 isymend = isymbuf + symtab_hdr->sh_info;
2692 for (isym = isymbuf; isym < isymend; isym++)
2693 {
2694 if (isym->st_shndx == sec_shndx
2695 && isym->st_value > addr
2696 && isym->st_value < toaddr)
2697 isym->st_value -= count;
2698 }
2699
2700 /* Now adjust the global symbols defined in this section. */
2701 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2702 - symtab_hdr->sh_info);
2703 sym_hashes = elf_sym_hashes (abfd);
2704 end_hashes = sym_hashes + symcount;
2705 for (; sym_hashes < end_hashes; sym_hashes++)
2706 {
2707 struct elf_link_hash_entry *sym_hash = *sym_hashes;
2708 if ((sym_hash->root.type == bfd_link_hash_defined
2709 || sym_hash->root.type == bfd_link_hash_defweak)
2710 && sym_hash->root.u.def.section == sec
2711 && sym_hash->root.u.def.value > addr
2712 && sym_hash->root.u.def.value < toaddr)
2713 {
2714 sym_hash->root.u.def.value -= count;
2715 }
2716 }
2717
2718 /* See if we can move the ALIGN reloc forward. We have adjusted
2719 r_offset for it already. */
2720 if (irelalign != NULL)
2721 {
2722 bfd_vma alignto, alignaddr;
2723
2724 alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
2725 alignaddr = BFD_ALIGN (irelalign->r_offset,
2726 1 << irelalign->r_addend);
2727 if (alignto != alignaddr)
2728 {
2729 /* Tail recursion. */
2730 return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
2731 (int) (alignto - alignaddr));
2732 }
2733 }
2734
2735 return true;
2736 }
2737
2738 /* Look for loads and stores which we can align to four byte
2739 boundaries. This is like sh_align_loads in coff-sh.c. */
2740
2741 static boolean
2742 sh_elf_align_loads (abfd, sec, internal_relocs, contents, pswapped)
2743 bfd *abfd ATTRIBUTE_UNUSED;
2744 asection *sec;
2745 Elf_Internal_Rela *internal_relocs;
2746 bfd_byte *contents ATTRIBUTE_UNUSED;
2747 boolean *pswapped;
2748 {
2749 Elf_Internal_Rela *irel, *irelend;
2750 bfd_vma *labels = NULL;
2751 bfd_vma *label, *label_end;
2752 bfd_size_type amt;
2753
2754 *pswapped = false;
2755
2756 irelend = internal_relocs + sec->reloc_count;
2757
2758 /* Get all the addresses with labels on them. */
2759 amt = sec->reloc_count;
2760 amt *= sizeof (bfd_vma);
2761 labels = (bfd_vma *) bfd_malloc (amt);
2762 if (labels == NULL)
2763 goto error_return;
2764 label_end = labels;
2765 for (irel = internal_relocs; irel < irelend; irel++)
2766 {
2767 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
2768 {
2769 *label_end = irel->r_offset;
2770 ++label_end;
2771 }
2772 }
2773
2774 /* Note that the assembler currently always outputs relocs in
2775 address order. If that ever changes, this code will need to sort
2776 the label values and the relocs. */
2777
2778 label = labels;
2779
2780 for (irel = internal_relocs; irel < irelend; irel++)
2781 {
2782 bfd_vma start, stop;
2783
2784 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
2785 continue;
2786
2787 start = irel->r_offset;
2788
2789 for (irel++; irel < irelend; irel++)
2790 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
2791 break;
2792 if (irel < irelend)
2793 stop = irel->r_offset;
2794 else
2795 stop = sec->_cooked_size;
2796
2797 if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
2798 (PTR) internal_relocs, &label,
2799 label_end, start, stop, pswapped))
2800 goto error_return;
2801 }
2802
2803 free (labels);
2804
2805 return true;
2806
2807 error_return:
2808 if (labels != NULL)
2809 free (labels);
2810 return false;
2811 }
2812
2813 /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
2814
2815 static boolean
2816 sh_elf_swap_insns (abfd, sec, relocs, contents, addr)
2817 bfd *abfd;
2818 asection *sec;
2819 PTR relocs;
2820 bfd_byte *contents;
2821 bfd_vma addr;
2822 {
2823 Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
2824 unsigned short i1, i2;
2825 Elf_Internal_Rela *irel, *irelend;
2826
2827 /* Swap the instructions themselves. */
2828 i1 = bfd_get_16 (abfd, contents + addr);
2829 i2 = bfd_get_16 (abfd, contents + addr + 2);
2830 bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
2831 bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
2832
2833 /* Adjust all reloc addresses. */
2834 irelend = internal_relocs + sec->reloc_count;
2835 for (irel = internal_relocs; irel < irelend; irel++)
2836 {
2837 enum elf_sh_reloc_type type;
2838 int add;
2839
2840 /* There are a few special types of relocs that we don't want to
2841 adjust. These relocs do not apply to the instruction itself,
2842 but are only associated with the address. */
2843 type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
2844 if (type == R_SH_ALIGN
2845 || type == R_SH_CODE
2846 || type == R_SH_DATA
2847 || type == R_SH_LABEL)
2848 continue;
2849
2850 /* If an R_SH_USES reloc points to one of the addresses being
2851 swapped, we must adjust it. It would be incorrect to do this
2852 for a jump, though, since we want to execute both
2853 instructions after the jump. (We have avoided swapping
2854 around a label, so the jump will not wind up executing an
2855 instruction it shouldn't). */
2856 if (type == R_SH_USES)
2857 {
2858 bfd_vma off;
2859
2860 off = irel->r_offset + 4 + irel->r_addend;
2861 if (off == addr)
2862 irel->r_offset += 2;
2863 else if (off == addr + 2)
2864 irel->r_offset -= 2;
2865 }
2866
2867 if (irel->r_offset == addr)
2868 {
2869 irel->r_offset += 2;
2870 add = -2;
2871 }
2872 else if (irel->r_offset == addr + 2)
2873 {
2874 irel->r_offset -= 2;
2875 add = 2;
2876 }
2877 else
2878 add = 0;
2879
2880 if (add != 0)
2881 {
2882 bfd_byte *loc;
2883 unsigned short insn, oinsn;
2884 boolean overflow;
2885
2886 loc = contents + irel->r_offset;
2887 overflow = false;
2888 switch (type)
2889 {
2890 default:
2891 break;
2892
2893 case R_SH_DIR8WPN:
2894 case R_SH_DIR8WPZ:
2895 insn = bfd_get_16 (abfd, loc);
2896 oinsn = insn;
2897 insn += add / 2;
2898 if ((oinsn & 0xff00) != (insn & 0xff00))
2899 overflow = true;
2900 bfd_put_16 (abfd, (bfd_vma) insn, loc);
2901 break;
2902
2903 case R_SH_IND12W:
2904 insn = bfd_get_16 (abfd, loc);
2905 oinsn = insn;
2906 insn += add / 2;
2907 if ((oinsn & 0xf000) != (insn & 0xf000))
2908 overflow = true;
2909 bfd_put_16 (abfd, (bfd_vma) insn, loc);
2910 break;
2911
2912 case R_SH_DIR8WPL:
2913 /* This reloc ignores the least significant 3 bits of
2914 the program counter before adding in the offset.
2915 This means that if ADDR is at an even address, the
2916 swap will not affect the offset. If ADDR is an at an
2917 odd address, then the instruction will be crossing a
2918 four byte boundary, and must be adjusted. */
2919 if ((addr & 3) != 0)
2920 {
2921 insn = bfd_get_16 (abfd, loc);
2922 oinsn = insn;
2923 insn += add / 2;
2924 if ((oinsn & 0xff00) != (insn & 0xff00))
2925 overflow = true;
2926 bfd_put_16 (abfd, (bfd_vma) insn, loc);
2927 }
2928
2929 break;
2930 }
2931
2932 if (overflow)
2933 {
2934 ((*_bfd_error_handler)
2935 (_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
2936 bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
2937 bfd_set_error (bfd_error_bad_value);
2938 return false;
2939 }
2940 }
2941 }
2942
2943 return true;
2944 }
2945 \f
2946 #ifdef INCLUDE_SHMEDIA
2947
2948 /* The size in bytes of an entry in the procedure linkage table. */
2949
2950 #define PLT_ENTRY_SIZE 64
2951
2952 /* First entry in an absolute procedure linkage table look like this. */
2953
2954 static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
2955 {
2956 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 16, r17 */
2957 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2958 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
2959 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2960 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
2961 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2962 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2963 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2964 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2965 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2966 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2967 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2968 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2969 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2970 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2971 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2972 };
2973
2974 static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
2975 {
2976 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
2977 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2978 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
2979 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2980 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
2981 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2982 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2983 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2984 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2985 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2986 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2987 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2988 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2989 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2990 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2991 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2992 };
2993
2994 /* Sebsequent entries in an absolute procedure linkage table look like
2995 this. */
2996
2997 static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
2998 {
2999 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 16, r25 */
3000 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
3001 0x89, 0x90, 0x01, 0x90, /* ld.l r25, 0, r25 */
3002 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3003 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3004 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3005 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3006 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3007 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */
3008 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */
3009 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3010 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3011 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3012 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3013 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3014 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3015 };
3016
3017 static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
3018 {
3019 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
3020 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3021 0x90, 0x01, 0x90, 0x89, /* ld.l r25, 0, r25 */
3022 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3023 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3024 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3025 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3026 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3027 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */
3028 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */
3029 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3030 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3031 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3032 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3033 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3034 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3035 };
3036
3037 /* Entries in a PIC procedure linkage table look like this. */
3038
3039 static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3040 {
3041 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
3042 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
3043 0x40, 0xc2, 0x65, 0x90, /* ldx.l r12, r25, r25 */
3044 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3045 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3046 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3047 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3048 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3049 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3050 0x00, 0xc8, 0x45, 0x10, /* add.l r12, r17, r17 */
3051 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
3052 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3053 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
3054 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3055 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3056 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3057 };
3058
3059 static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3060 {
3061 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3062 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3063 0x90, 0x65, 0xc2, 0x40, /* ldx.l r12, r25, r25 */
3064 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3065 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3066 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3067 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3068 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3069 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3070 0x10, 0x45, 0xc8, 0x00, /* add.l r12, r17, r17 */
3071 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
3072 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3073 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
3074 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3075 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3076 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3077 };
3078
3079 static const bfd_byte *elf_sh_plt0_entry;
3080 static const bfd_byte *elf_sh_plt_entry;
3081 static const bfd_byte *elf_sh_pic_plt_entry;
3082
3083 /* Return size of a PLT entry. */
3084 #define elf_sh_sizeof_plt(info) PLT_ENTRY_SIZE
3085
3086 /* Return offset of the PLT0 address in an absolute PLT entry. */
3087 #define elf_sh_plt_plt0_offset(info) 32
3088
3089 /* Return offset of the linker in PLT0 entry. */
3090 #define elf_sh_plt0_gotplt_offset(info) 0
3091
3092 /* Return offset of the trampoline in PLT entry */
3093 #define elf_sh_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
3094
3095 /* Return offset of the symbol in PLT entry. */
3096 #define elf_sh_plt_symbol_offset(info) 0
3097
3098 /* Return offset of the relocation in PLT entry. */
3099 #define elf_sh_plt_reloc_offset(info) (info->shared ? 52 : 44)
3100
3101 inline static void
3102 movi_shori_putval (output_bfd, value, addr)
3103 bfd *output_bfd;
3104 unsigned long value;
3105 char *addr;
3106 {
3107 bfd_put_32 (output_bfd,
3108 bfd_get_32 (output_bfd, addr)
3109 | ((value >> 6) & 0x3fffc00),
3110 addr);
3111 bfd_put_32 (output_bfd,
3112 bfd_get_32 (output_bfd, addr + 4)
3113 | ((value << 10) & 0x3fffc00),
3114 addr + 4);
3115 }
3116
3117 #else
3118 /* The size in bytes of an entry in the procedure linkage table. */
3119
3120 #define PLT_ENTRY_SIZE 28
3121
3122 /* First entry in an absolute procedure linkage table look like this. */
3123
3124 #if 1
3125 /* Note - this code has been "optimised" not to use r2. r2 is used by
3126 GCC to return the address of large strutcures, so it should not be
3127 corrupted here. This does mean however, that this PLT does not conform
3128 to the SH PIC ABI. That spec says that r0 contains the type of the PLT
3129 and r2 contains the GOT id. This version stores the GOT id in r0 and
3130 ignores the type. Loaders can easily detect this difference however,
3131 since the type will always be 0 or 8, and the GOT ids will always be
3132 greater than or equal to 12. */
3133 static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
3134 {
3135 0xd0, 0x05, /* mov.l 2f,r0 */
3136 0x60, 0x02, /* mov.l @r0,r0 */
3137 0x2f, 0x06, /* mov.l r0,@-r15 */
3138 0xd0, 0x03, /* mov.l 1f,r0 */
3139 0x60, 0x02, /* mov.l @r0,r0 */
3140 0x40, 0x2b, /* jmp @r0 */
3141 0x60, 0xf6, /* mov.l @r15+,r0 */
3142 0x00, 0x09, /* nop */
3143 0x00, 0x09, /* nop */
3144 0x00, 0x09, /* nop */
3145 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
3146 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
3147 };
3148
3149 static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
3150 {
3151 0x05, 0xd0, /* mov.l 2f,r0 */
3152 0x02, 0x60, /* mov.l @r0,r0 */
3153 0x06, 0x2f, /* mov.l r0,@-r15 */
3154 0x03, 0xd0, /* mov.l 1f,r0 */
3155 0x02, 0x60, /* mov.l @r0,r0 */
3156 0x2b, 0x40, /* jmp @r0 */
3157 0xf6, 0x60, /* mov.l @r15+,r0 */
3158 0x09, 0x00, /* nop */
3159 0x09, 0x00, /* nop */
3160 0x09, 0x00, /* nop */
3161 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
3162 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
3163 };
3164
3165 /* Sebsequent entries in an absolute procedure linkage table look like
3166 this. */
3167
3168 static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
3169 {
3170 0xd0, 0x04, /* mov.l 1f,r0 */
3171 0x60, 0x02, /* mov.l @r0,r0 */
3172 0xd1, 0x02, /* mov.l 0f,r1 */
3173 0x40, 0x2b, /* jmp @r0 */
3174 0x60, 0x13, /* mov r1,r0 */
3175 0xd1, 0x03, /* mov.l 2f,r1 */
3176 0x40, 0x2b, /* jmp @r0 */
3177 0x00, 0x09, /* nop */
3178 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
3179 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3180 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
3181 };
3182
3183 static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
3184 {
3185 0x04, 0xd0, /* mov.l 1f,r0 */
3186 0x02, 0x60, /* mov.l @r0,r0 */
3187 0x02, 0xd1, /* mov.l 0f,r1 */
3188 0x2b, 0x40, /* jmp @r0 */
3189 0x13, 0x60, /* mov r1,r0 */
3190 0x03, 0xd1, /* mov.l 2f,r1 */
3191 0x2b, 0x40, /* jmp @r0 */
3192 0x09, 0x00, /* nop */
3193 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
3194 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3195 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
3196 };
3197
3198 /* Entries in a PIC procedure linkage table look like this. */
3199
3200 static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3201 {
3202 0xd0, 0x04, /* mov.l 1f,r0 */
3203 0x00, 0xce, /* mov.l @(r0,r12),r0 */
3204 0x40, 0x2b, /* jmp @r0 */
3205 0x00, 0x09, /* nop */
3206 0x50, 0xc2, /* mov.l @(8,r12),r0 */
3207 0xd1, 0x03, /* mov.l 2f,r1 */
3208 0x40, 0x2b, /* jmp @r0 */
3209 0x50, 0xc1, /* mov.l @(4,r12),r0 */
3210 0x00, 0x09, /* nop */
3211 0x00, 0x09, /* nop */
3212 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3213 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
3214 };
3215
3216 static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3217 {
3218 0x04, 0xd0, /* mov.l 1f,r0 */
3219 0xce, 0x00, /* mov.l @(r0,r12),r0 */
3220 0x2b, 0x40, /* jmp @r0 */
3221 0x09, 0x00, /* nop */
3222 0xc2, 0x50, /* mov.l @(8,r12),r0 */
3223 0x03, 0xd1, /* mov.l 2f,r1 */
3224 0x2b, 0x40, /* jmp @r0 */
3225 0xc1, 0x50, /* mov.l @(4,r12),r0 */
3226 0x09, 0x00, /* nop */
3227 0x09, 0x00, /* nop */
3228 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3229 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
3230 };
3231
3232 #else /* These are the old style PLT entries. */
3233 static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
3234 {
3235 0xd0, 0x04, /* mov.l 1f,r0 */
3236 0xd2, 0x05, /* mov.l 2f,r2 */
3237 0x60, 0x02, /* mov.l @r0,r0 */
3238 0x62, 0x22, /* mov.l @r2,r2 */
3239 0x40, 0x2b, /* jmp @r0 */
3240 0xe0, 0x00, /* mov #0,r0 */
3241 0x00, 0x09, /* nop */
3242 0x00, 0x09, /* nop */
3243 0x00, 0x09, /* nop */
3244 0x00, 0x09, /* nop */
3245 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
3246 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
3247 };
3248
3249 static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
3250 {
3251 0x04, 0xd0, /* mov.l 1f,r0 */
3252 0x05, 0xd2, /* mov.l 2f,r2 */
3253 0x02, 0x60, /* mov.l @r0,r0 */
3254 0x22, 0x62, /* mov.l @r2,r2 */
3255 0x2b, 0x40, /* jmp @r0 */
3256 0x00, 0xe0, /* mov #0,r0 */
3257 0x09, 0x00, /* nop */
3258 0x09, 0x00, /* nop */
3259 0x09, 0x00, /* nop */
3260 0x09, 0x00, /* nop */
3261 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
3262 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
3263 };
3264
3265 /* Sebsequent entries in an absolute procedure linkage table look like
3266 this. */
3267
3268 static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
3269 {
3270 0xd0, 0x04, /* mov.l 1f,r0 */
3271 0x60, 0x02, /* mov.l @r0,r0 */
3272 0xd2, 0x02, /* mov.l 0f,r2 */
3273 0x40, 0x2b, /* jmp @r0 */
3274 0x60, 0x23, /* mov r2,r0 */
3275 0xd1, 0x03, /* mov.l 2f,r1 */
3276 0x40, 0x2b, /* jmp @r0 */
3277 0x00, 0x09, /* nop */
3278 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
3279 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3280 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
3281 };
3282
3283 static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
3284 {
3285 0x04, 0xd0, /* mov.l 1f,r0 */
3286 0x02, 0x60, /* mov.l @r0,r0 */
3287 0x02, 0xd2, /* mov.l 0f,r2 */
3288 0x2b, 0x40, /* jmp @r0 */
3289 0x23, 0x60, /* mov r2,r0 */
3290 0x03, 0xd1, /* mov.l 2f,r1 */
3291 0x2b, 0x40, /* jmp @r0 */
3292 0x09, 0x00, /* nop */
3293 0, 0, 0, 0, /* 0: replaced with address of .PLT. */
3294 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3295 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
3296 };
3297
3298 /* Entries in a PIC procedure linkage table look like this. */
3299
3300 static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3301 {
3302 0xd0, 0x04, /* mov.l 1f,r0 */
3303 0x00, 0xce, /* mov.l @(r0,r12),r0 */
3304 0x40, 0x2b, /* jmp @r0 */
3305 0x00, 0x09, /* nop */
3306 0x50, 0xc2, /* 0: mov.l @(8,r12),r0 */
3307 0x52, 0xc1, /* 1: mov.l @(4,r12),r2 */
3308 0xd1, 0x02, /* mov.l 2f,r1 */
3309 0x40, 0x2b, /* jmp @r0 */
3310 0xe0, 0x00, /* mov #0,r0 ! shows the type of PLT. */
3311 0x00, 0x09, /* nop */
3312 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3313 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
3314 };
3315
3316 static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3317 {
3318 0x04, 0xd0, /* mov.l 1f,r0 */
3319 0xce, 0x00, /* mov.l @(r0,r12),r0 */
3320 0x2b, 0x40, /* jmp @r0 */
3321 0x09, 0x00, /* nop */
3322 0xc2, 0x50, /* 0: mov.l @(8,r12),r0 */
3323 0xc1, 0x52, /* 1: mov.l @(4,r12),r2 */
3324 0x02, 0xd1, /* mov.l 2f,r1 */
3325 0x2b, 0x40, /* jmp @r0 */
3326 0x00, 0xe0, /* mov #0,r0 ! shows the type of PLT. */
3327 0x09, 0x00, /* nop */
3328 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3329 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
3330 };
3331 #endif /* old style PLT entries. */
3332
3333 static const bfd_byte *elf_sh_plt0_entry;
3334 static const bfd_byte *elf_sh_plt_entry;
3335 static const bfd_byte *elf_sh_pic_plt_entry;
3336
3337 /* Return size of a PLT entry. */
3338 #define elf_sh_sizeof_plt(info) PLT_ENTRY_SIZE
3339
3340 /* Return offset of the PLT0 address in an absolute PLT entry. */
3341 #define elf_sh_plt_plt0_offset(info) 16
3342
3343 /* Return offset of the linker in PLT0 entry. */
3344 #define elf_sh_plt0_linker_offset(info) 20
3345
3346 /* Return offset of the GOT id in PLT0 entry. */
3347 #define elf_sh_plt0_gotid_offset(info) 24
3348
3349 /* Return offset of the tempoline in PLT entry */
3350 #define elf_sh_plt_temp_offset(info) 8
3351
3352 /* Return offset of the symbol in PLT entry. */
3353 #define elf_sh_plt_symbol_offset(info) 20
3354
3355 /* Return offset of the relocation in PLT entry. */
3356 #define elf_sh_plt_reloc_offset(info) 24
3357 #endif
3358
3359 /* The sh linker needs to keep track of the number of relocs that it
3360 decides to copy as dynamic relocs in check_relocs for each symbol.
3361 This is so that it can later discard them if they are found to be
3362 unnecessary. We store the information in a field extending the
3363 regular ELF linker hash table. */
3364
3365 struct elf_sh_dyn_relocs
3366 {
3367 struct elf_sh_dyn_relocs *next;
3368
3369 /* The input section of the reloc. */
3370 asection *sec;
3371
3372 /* Total number of relocs copied for the input section. */
3373 bfd_size_type count;
3374
3375 /* Number of pc-relative relocs copied for the input section. */
3376 bfd_size_type pc_count;
3377 };
3378
3379 /* sh ELF linker hash entry. */
3380
3381 struct elf_sh_link_hash_entry
3382 {
3383 struct elf_link_hash_entry root;
3384
3385 #ifdef INCLUDE_SHMEDIA
3386 bfd_vma datalabel_got_offset;
3387 #endif
3388
3389 /* Track dynamic relocs copied for this symbol. */
3390 struct elf_sh_dyn_relocs *dyn_relocs;
3391
3392 bfd_signed_vma gotplt_refcount;
3393 };
3394
3395 /* sh ELF linker hash table. */
3396
3397 struct elf_sh_link_hash_table
3398 {
3399 struct elf_link_hash_table root;
3400
3401 /* Short-cuts to get to dynamic linker sections. */
3402 asection *sgot;
3403 asection *sgotplt;
3404 asection *srelgot;
3405 asection *splt;
3406 asection *srelplt;
3407 asection *sdynbss;
3408 asection *srelbss;
3409
3410 /* Small local sym to section mapping cache. */
3411 struct sym_sec_cache sym_sec;
3412 };
3413
3414 /* Traverse an sh ELF linker hash table. */
3415
3416 #define sh_elf_link_hash_traverse(table, func, info) \
3417 (elf_link_hash_traverse \
3418 (&(table)->root, \
3419 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
3420 (info)))
3421
3422 /* Get the sh ELF linker hash table from a link_info structure. */
3423
3424 #define sh_elf_hash_table(p) \
3425 ((struct elf_sh_link_hash_table *) ((p)->hash))
3426
3427 /* Create an entry in an sh ELF linker hash table. */
3428
3429 static struct bfd_hash_entry *
3430 sh_elf_link_hash_newfunc (entry, table, string)
3431 struct bfd_hash_entry *entry;
3432 struct bfd_hash_table *table;
3433 const char *string;
3434 {
3435 struct elf_sh_link_hash_entry *ret =
3436 (struct elf_sh_link_hash_entry *) entry;
3437
3438 /* Allocate the structure if it has not already been allocated by a
3439 subclass. */
3440 if (ret == (struct elf_sh_link_hash_entry *) NULL)
3441 ret = ((struct elf_sh_link_hash_entry *)
3442 bfd_hash_allocate (table,
3443 sizeof (struct elf_sh_link_hash_entry)));
3444 if (ret == (struct elf_sh_link_hash_entry *) NULL)
3445 return (struct bfd_hash_entry *) ret;
3446
3447 /* Call the allocation method of the superclass. */
3448 ret = ((struct elf_sh_link_hash_entry *)
3449 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3450 table, string));
3451 if (ret != (struct elf_sh_link_hash_entry *) NULL)
3452 {
3453 struct elf_sh_link_hash_entry *eh;
3454
3455 eh = (struct elf_sh_link_hash_entry *) ret;
3456 eh->dyn_relocs = NULL;
3457 eh->gotplt_refcount = 0;
3458 #ifdef INCLUDE_SHMEDIA
3459 ret->datalabel_got_offset = (bfd_vma) -1;
3460 #endif
3461 }
3462
3463 return (struct bfd_hash_entry *) ret;
3464 }
3465
3466 /* Create an sh ELF linker hash table. */
3467
3468 static struct bfd_link_hash_table *
3469 sh_elf_link_hash_table_create (abfd)
3470 bfd *abfd;
3471 {
3472 struct elf_sh_link_hash_table *ret;
3473 bfd_size_type amt = sizeof (struct elf_sh_link_hash_table);
3474
3475 ret = (struct elf_sh_link_hash_table *) bfd_malloc (amt);
3476 if (ret == (struct elf_sh_link_hash_table *) NULL)
3477 return NULL;
3478
3479 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
3480 sh_elf_link_hash_newfunc))
3481 {
3482 free (ret);
3483 return NULL;
3484 }
3485
3486 ret->sgot = NULL;
3487 ret->sgotplt = NULL;
3488 ret->srelgot = NULL;
3489 ret->splt = NULL;
3490 ret->srelplt = NULL;
3491 ret->sdynbss = NULL;
3492 ret->srelbss = NULL;
3493 ret->sym_sec.abfd = NULL;
3494
3495 return &ret->root.root;
3496 }
3497
3498 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
3499 shortcuts to them in our hash table. */
3500
3501 static boolean
3502 create_got_section (dynobj, info)
3503 bfd *dynobj;
3504 struct bfd_link_info *info;
3505 {
3506 struct elf_sh_link_hash_table *htab;
3507
3508 if (! _bfd_elf_create_got_section (dynobj, info))
3509 return false;
3510
3511 htab = sh_elf_hash_table (info);
3512 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
3513 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
3514 if (! htab->sgot || ! htab->sgotplt)
3515 abort ();
3516
3517 htab->srelgot = bfd_make_section (dynobj, ".rela.got");
3518 if (htab->srelgot == NULL
3519 || ! bfd_set_section_flags (dynobj, htab->srelgot,
3520 (SEC_ALLOC
3521 | SEC_LOAD
3522 | SEC_HAS_CONTENTS
3523 | SEC_IN_MEMORY
3524 | SEC_LINKER_CREATED
3525 | SEC_READONLY))
3526 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
3527 return false;
3528 return true;
3529 }
3530
3531 /* Create dynamic sections when linking against a dynamic object. */
3532
3533 static boolean
3534 sh_elf_create_dynamic_sections (abfd, info)
3535 bfd *abfd;
3536 struct bfd_link_info *info;
3537 {
3538 struct elf_sh_link_hash_table *htab;
3539 flagword flags, pltflags;
3540 register asection *s;
3541 struct elf_backend_data *bed = get_elf_backend_data (abfd);
3542 int ptralign = 0;
3543
3544 switch (bed->s->arch_size)
3545 {
3546 case 32:
3547 ptralign = 2;
3548 break;
3549
3550 case 64:
3551 ptralign = 3;
3552 break;
3553
3554 default:
3555 bfd_set_error (bfd_error_bad_value);
3556 return false;
3557 }
3558
3559 htab = sh_elf_hash_table (info);
3560
3561 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3562 .rel[a].bss sections. */
3563
3564 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3565 | SEC_LINKER_CREATED);
3566
3567 pltflags = flags;
3568 pltflags |= SEC_CODE;
3569 if (bed->plt_not_loaded)
3570 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3571 if (bed->plt_readonly)
3572 pltflags |= SEC_READONLY;
3573
3574 s = bfd_make_section (abfd, ".plt");
3575 htab->splt = s;
3576 if (s == NULL
3577 || ! bfd_set_section_flags (abfd, s, pltflags)
3578 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3579 return false;
3580
3581 if (bed->want_plt_sym)
3582 {
3583 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3584 .plt section. */
3585 struct elf_link_hash_entry *h = NULL;
3586 if (! (_bfd_generic_link_add_one_symbol
3587 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3588 (bfd_vma) 0, (const char *) NULL, false,
3589 get_elf_backend_data (abfd)->collect,
3590 (struct bfd_link_hash_entry **) &h)))
3591 return false;
3592 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
3593 h->type = STT_OBJECT;
3594
3595 if (info->shared
3596 && ! _bfd_elf_link_record_dynamic_symbol (info, h))
3597 return false;
3598 }
3599
3600 s = bfd_make_section (abfd,
3601 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
3602 htab->srelplt = s;
3603 if (s == NULL
3604 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3605 || ! bfd_set_section_alignment (abfd, s, ptralign))
3606 return false;
3607
3608 if (! create_got_section (abfd, info))
3609 return false;
3610
3611 {
3612 const char *secname;
3613 char *relname;
3614 flagword secflags;
3615 asection *sec;
3616
3617 for (sec = abfd->sections; sec; sec = sec->next)
3618 {
3619 secflags = bfd_get_section_flags (abfd, sec);
3620 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
3621 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
3622 continue;
3623 secname = bfd_get_section_name (abfd, sec);
3624 relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6);
3625 strcpy (relname, ".rela");
3626 strcat (relname, secname);
3627 s = bfd_make_section (abfd, relname);
3628 if (s == NULL
3629 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3630 || ! bfd_set_section_alignment (abfd, s, ptralign))
3631 return false;
3632 }
3633 }
3634
3635 if (bed->want_dynbss)
3636 {
3637 /* The .dynbss section is a place to put symbols which are defined
3638 by dynamic objects, are referenced by regular objects, and are
3639 not functions. We must allocate space for them in the process
3640 image and use a R_*_COPY reloc to tell the dynamic linker to
3641 initialize them at run time. The linker script puts the .dynbss
3642 section into the .bss section of the final image. */
3643 s = bfd_make_section (abfd, ".dynbss");
3644 htab->sdynbss = s;
3645 if (s == NULL
3646 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
3647 return false;
3648
3649 /* The .rel[a].bss section holds copy relocs. This section is not
3650 normally needed. We need to create it here, though, so that the
3651 linker will map it to an output section. We can't just create it
3652 only if we need it, because we will not know whether we need it
3653 until we have seen all the input files, and the first time the
3654 main linker code calls BFD after examining all the input files
3655 (size_dynamic_sections) the input sections have already been
3656 mapped to the output sections. If the section turns out not to
3657 be needed, we can discard it later. We will never need this
3658 section when generating a shared object, since they do not use
3659 copy relocs. */
3660 if (! info->shared)
3661 {
3662 s = bfd_make_section (abfd,
3663 (bed->default_use_rela_p
3664 ? ".rela.bss" : ".rel.bss"));
3665 htab->srelbss = s;
3666 if (s == NULL
3667 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3668 || ! bfd_set_section_alignment (abfd, s, ptralign))
3669 return false;
3670 }
3671 }
3672
3673 return true;
3674 }
3675 \f
3676 /* Adjust a symbol defined by a dynamic object and referenced by a
3677 regular object. The current definition is in some section of the
3678 dynamic object, but we're not including those sections. We have to
3679 change the definition to something the rest of the link can
3680 understand. */
3681
3682 static boolean
3683 sh_elf_adjust_dynamic_symbol (info, h)
3684 struct bfd_link_info *info;
3685 struct elf_link_hash_entry *h;
3686 {
3687 struct elf_sh_link_hash_table *htab;
3688 struct elf_sh_link_hash_entry *eh;
3689 struct elf_sh_dyn_relocs *p;
3690 bfd *dynobj;
3691 asection *s;
3692 unsigned int power_of_two;
3693
3694 dynobj = elf_hash_table (info)->dynobj;
3695
3696 /* Make sure we know what is going on here. */
3697 BFD_ASSERT (dynobj != NULL
3698 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
3699 || h->weakdef != NULL
3700 || ((h->elf_link_hash_flags
3701 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
3702 && (h->elf_link_hash_flags
3703 & ELF_LINK_HASH_REF_REGULAR) != 0
3704 && (h->elf_link_hash_flags
3705 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
3706
3707 /* If this is a function, put it in the procedure linkage table. We
3708 will fill in the contents of the procedure linkage table later,
3709 when we know the address of the .got section. */
3710 if (h->type == STT_FUNC
3711 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
3712 {
3713 if (h->plt.refcount <= 0
3714 || (! info->shared
3715 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
3716 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0
3717 && h->root.type != bfd_link_hash_undefweak
3718 && h->root.type != bfd_link_hash_undefined))
3719 {
3720 /* This case can occur if we saw a PLT reloc in an input
3721 file, but the symbol was never referred to by a dynamic
3722 object. In such a case, we don't actually need to build
3723 a procedure linkage table, and we can just do a REL32
3724 reloc instead. */
3725 h->plt.offset = (bfd_vma) -1;
3726 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
3727 }
3728
3729 return true;
3730 }
3731 else
3732 h->plt.offset = (bfd_vma) -1;
3733
3734 /* If this is a weak symbol, and there is a real definition, the
3735 processor independent code will have arranged for us to see the
3736 real definition first, and we can just use the same value. */
3737 if (h->weakdef != NULL)
3738 {
3739 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
3740 || h->weakdef->root.type == bfd_link_hash_defweak);
3741 h->root.u.def.section = h->weakdef->root.u.def.section;
3742 h->root.u.def.value = h->weakdef->root.u.def.value;
3743 return true;
3744 }
3745
3746 /* This is a reference to a symbol defined by a dynamic object which
3747 is not a function. */
3748
3749 /* If we are creating a shared library, we must presume that the
3750 only references to the symbol are via the global offset table.
3751 For such cases we need not do anything here; the relocations will
3752 be handled correctly by relocate_section. */
3753 if (info->shared)
3754 return true;
3755
3756 /* If there are no references to this symbol that do not use the
3757 GOT, we don't need to generate a copy reloc. */
3758 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
3759 return true;
3760
3761 /* If -z nocopyreloc was given, we won't generate them either. */
3762 if (info->nocopyreloc)
3763 {
3764 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
3765 return true;
3766 }
3767
3768 eh = (struct elf_sh_link_hash_entry *) h;
3769 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3770 {
3771 s = p->sec->output_section;
3772 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
3773 break;
3774 }
3775
3776 /* If we didn't find any dynamic relocs in sections which needs the
3777 copy reloc, then we'll be keeping the dynamic relocs and avoiding
3778 the copy reloc. */
3779 if (p == NULL)
3780 {
3781 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
3782 return true;
3783 }
3784
3785 /* We must allocate the symbol in our .dynbss section, which will
3786 become part of the .bss section of the executable. There will be
3787 an entry for this symbol in the .dynsym section. The dynamic
3788 object will contain position independent code, so all references
3789 from the dynamic object to this symbol will go through the global
3790 offset table. The dynamic linker will use the .dynsym entry to
3791 determine the address it must put in the global offset table, so
3792 both the dynamic object and the regular object will refer to the
3793 same memory location for the variable. */
3794
3795 htab = sh_elf_hash_table (info);
3796 s = htab->sdynbss;
3797 BFD_ASSERT (s != NULL);
3798
3799 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3800 copy the initial value out of the dynamic object and into the
3801 runtime process image. We need to remember the offset into the
3802 .rela.bss section we are going to use. */
3803 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3804 {
3805 asection *srel;
3806
3807 srel = htab->srelbss;
3808 BFD_ASSERT (srel != NULL);
3809 srel->_raw_size += sizeof (Elf32_External_Rela);
3810 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
3811 }
3812
3813 /* We need to figure out the alignment required for this symbol. I
3814 have no idea how ELF linkers handle this. */
3815 power_of_two = bfd_log2 (h->size);
3816 if (power_of_two > 3)
3817 power_of_two = 3;
3818
3819 /* Apply the required alignment. */
3820 s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two));
3821 if (power_of_two > bfd_get_section_alignment (dynobj, s))
3822 {
3823 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
3824 return false;
3825 }
3826
3827 /* Define the symbol as being at this point in the section. */
3828 h->root.u.def.section = s;
3829 h->root.u.def.value = s->_raw_size;
3830
3831 /* Increment the section size to make room for the symbol. */
3832 s->_raw_size += h->size;
3833
3834 return true;
3835 }
3836
3837 /* This is the condition under which sh_elf_finish_dynamic_symbol
3838 will be called from elflink.h. If elflink.h doesn't call our
3839 finish_dynamic_symbol routine, we'll need to do something about
3840 initializing any .plt and .got entries in sh_elf_relocate_section. */
3841 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
3842 ((DYN) \
3843 && ((INFO)->shared \
3844 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
3845 && ((H)->dynindx != -1 \
3846 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
3847
3848 /* Allocate space in .plt, .got and associated reloc sections for
3849 dynamic relocs. */
3850
3851 static boolean
3852 allocate_dynrelocs (h, inf)
3853 struct elf_link_hash_entry *h;
3854 PTR inf;
3855 {
3856 struct bfd_link_info *info;
3857 struct elf_sh_link_hash_table *htab;
3858 struct elf_sh_link_hash_entry *eh;
3859 struct elf_sh_dyn_relocs *p;
3860
3861 if (h->root.type == bfd_link_hash_indirect)
3862 return true;
3863
3864 if (h->root.type == bfd_link_hash_warning)
3865 /* When warning symbols are created, they **replace** the "real"
3866 entry in the hash table, thus we never get to see the real
3867 symbol in a hash traversal. So look at it now. */
3868 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3869
3870 info = (struct bfd_link_info *) inf;
3871 htab = sh_elf_hash_table (info);
3872
3873 eh = (struct elf_sh_link_hash_entry *) h;
3874 if ((h->got.refcount > 0
3875 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
3876 && eh->gotplt_refcount > 0)
3877 {
3878 /* The symbol has been forced local, or we have some direct got refs,
3879 so treat all the gotplt refs as got refs. */
3880 h->got.refcount += eh->gotplt_refcount;
3881 if (h->plt.refcount >= eh->gotplt_refcount)
3882 h->plt.refcount -= eh->gotplt_refcount;
3883 }
3884
3885 if (htab->root.dynamic_sections_created
3886 && h->plt.refcount > 0)
3887 {
3888 /* Make sure this symbol is output as a dynamic symbol.
3889 Undefined weak syms won't yet be marked as dynamic. */
3890 if (h->dynindx == -1
3891 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
3892 {
3893 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
3894 return false;
3895 }
3896
3897 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h))
3898 {
3899 asection *s = htab->splt;
3900
3901 /* If this is the first .plt entry, make room for the special
3902 first entry. */
3903 if (s->_raw_size == 0)
3904 s->_raw_size += PLT_ENTRY_SIZE;
3905
3906 h->plt.offset = s->_raw_size;
3907
3908 /* If this symbol is not defined in a regular file, and we are
3909 not generating a shared library, then set the symbol to this
3910 location in the .plt. This is required to make function
3911 pointers compare as equal between the normal executable and
3912 the shared library. */
3913 if (! info->shared
3914 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3915 {
3916 h->root.u.def.section = s;
3917 h->root.u.def.value = h->plt.offset;
3918 }
3919
3920 /* Make room for this entry. */
3921 s->_raw_size += PLT_ENTRY_SIZE;
3922
3923 /* We also need to make an entry in the .got.plt section, which
3924 will be placed in the .got section by the linker script. */
3925 htab->sgotplt->_raw_size += 4;
3926
3927 /* We also need to make an entry in the .rel.plt section. */
3928 htab->srelplt->_raw_size += sizeof (Elf32_External_Rela);
3929 }
3930 else
3931 {
3932 h->plt.offset = (bfd_vma) -1;
3933 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
3934 }
3935 }
3936 else
3937 {
3938 h->plt.offset = (bfd_vma) -1;
3939 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
3940 }
3941
3942 if (h->got.refcount > 0)
3943 {
3944 asection *s;
3945 boolean dyn;
3946
3947 /* Make sure this symbol is output as a dynamic symbol.
3948 Undefined weak syms won't yet be marked as dynamic. */
3949 if (h->dynindx == -1
3950 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
3951 {
3952 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
3953 return false;
3954 }
3955
3956 s = htab->sgot;
3957 #ifdef INCLUDE_SHMEDIA
3958 if (h->type == STT_DATALABEL)
3959 {
3960 struct elf_sh_link_hash_entry *hsh;
3961
3962 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3963 hsh = (struct elf_sh_link_hash_entry *)h;
3964 hsh->datalabel_got_offset = s->_raw_size;
3965 }
3966 else
3967 h->got.offset = s->_raw_size;
3968 #else
3969 h->got.offset = s->_raw_size;
3970 #endif
3971 s->_raw_size += 4;
3972 dyn = htab->root.dynamic_sections_created;
3973 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h))
3974 htab->srelgot->_raw_size += sizeof (Elf32_External_Rela);
3975 }
3976 else
3977 h->got.offset = (bfd_vma) -1;
3978
3979 if (eh->dyn_relocs == NULL)
3980 return true;
3981
3982 /* In the shared -Bsymbolic case, discard space allocated for
3983 dynamic pc-relative relocs against symbols which turn out to be
3984 defined in regular objects. For the normal shared case, discard
3985 space for pc-relative relocs that have become local due to symbol
3986 visibility changes. */
3987
3988 if (info->shared)
3989 {
3990 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
3991 && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
3992 || info->symbolic))
3993 {
3994 struct elf_sh_dyn_relocs **pp;
3995
3996 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3997 {
3998 p->count -= p->pc_count;
3999 p->pc_count = 0;
4000 if (p->count == 0)
4001 *pp = p->next;
4002 else
4003 pp = &p->next;
4004 }
4005 }
4006 }
4007 else
4008 {
4009 /* For the non-shared case, discard space for relocs against
4010 symbols which turn out to need copy relocs or are not
4011 dynamic. */
4012
4013 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
4014 && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4015 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
4016 || (htab->root.dynamic_sections_created
4017 && (h->root.type == bfd_link_hash_undefweak
4018 || h->root.type == bfd_link_hash_undefined))))
4019 {
4020 /* Make sure this symbol is output as a dynamic symbol.
4021 Undefined weak syms won't yet be marked as dynamic. */
4022 if (h->dynindx == -1
4023 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
4024 {
4025 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
4026 return false;
4027 }
4028
4029 /* If that succeeded, we know we'll be keeping all the
4030 relocs. */
4031 if (h->dynindx != -1)
4032 goto keep;
4033 }
4034
4035 eh->dyn_relocs = NULL;
4036
4037 keep: ;
4038 }
4039
4040 /* Finally, allocate space. */
4041 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4042 {
4043 asection *sreloc = elf_section_data (p->sec)->sreloc;
4044 sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela);
4045 }
4046
4047 return true;
4048 }
4049
4050 /* Find any dynamic relocs that apply to read-only sections. */
4051
4052 static boolean
4053 readonly_dynrelocs (h, inf)
4054 struct elf_link_hash_entry *h;
4055 PTR inf;
4056 {
4057 struct elf_sh_link_hash_entry *eh;
4058 struct elf_sh_dyn_relocs *p;
4059
4060 if (h->root.type == bfd_link_hash_warning)
4061 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4062
4063 eh = (struct elf_sh_link_hash_entry *) h;
4064 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4065 {
4066 asection *s = p->sec->output_section;
4067
4068 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4069 {
4070 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4071
4072 info->flags |= DF_TEXTREL;
4073
4074 /* Not an error, just cut short the traversal. */
4075 return false;
4076 }
4077 }
4078 return true;
4079 }
4080
4081 /* Set the sizes of the dynamic sections. */
4082
4083 static boolean
4084 sh_elf_size_dynamic_sections (output_bfd, info)
4085 bfd *output_bfd ATTRIBUTE_UNUSED;
4086 struct bfd_link_info *info;
4087 {
4088 struct elf_sh_link_hash_table *htab;
4089 bfd *dynobj;
4090 asection *s;
4091 boolean relocs;
4092 bfd *ibfd;
4093
4094 htab = sh_elf_hash_table (info);
4095 dynobj = htab->root.dynobj;
4096 BFD_ASSERT (dynobj != NULL);
4097
4098 if (htab->root.dynamic_sections_created)
4099 {
4100 /* Set the contents of the .interp section to the interpreter. */
4101 if (! info->shared)
4102 {
4103 s = bfd_get_section_by_name (dynobj, ".interp");
4104 BFD_ASSERT (s != NULL);
4105 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
4106 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
4107 }
4108 }
4109
4110 /* Set up .got offsets for local syms, and space for local dynamic
4111 relocs. */
4112 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4113 {
4114 bfd_signed_vma *local_got;
4115 bfd_signed_vma *end_local_got;
4116 bfd_size_type locsymcount;
4117 Elf_Internal_Shdr *symtab_hdr;
4118 asection *srel;
4119
4120 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
4121 continue;
4122
4123 for (s = ibfd->sections; s != NULL; s = s->next)
4124 {
4125 struct elf_sh_dyn_relocs *p;
4126
4127 for (p = ((struct elf_sh_dyn_relocs *)
4128 elf_section_data (s)->local_dynrel);
4129 p != NULL;
4130 p = p->next)
4131 {
4132 if (! bfd_is_abs_section (p->sec)
4133 && bfd_is_abs_section (p->sec->output_section))
4134 {
4135 /* Input section has been discarded, either because
4136 it is a copy of a linkonce section or due to
4137 linker script /DISCARD/, so we'll be discarding
4138 the relocs too. */
4139 }
4140 else if (p->count != 0)
4141 {
4142 srel = elf_section_data (p->sec)->sreloc;
4143 srel->_raw_size += p->count * sizeof (Elf32_External_Rela);
4144 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
4145 info->flags |= DF_TEXTREL;
4146 }
4147 }
4148 }
4149
4150 local_got = elf_local_got_refcounts (ibfd);
4151 if (!local_got)
4152 continue;
4153
4154 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4155 locsymcount = symtab_hdr->sh_info;
4156 #ifdef INCLUDE_SHMEDIA
4157 /* Count datalabel local GOT. */
4158 locsymcount *= 2;
4159 #endif
4160 end_local_got = local_got + locsymcount;
4161 s = htab->sgot;
4162 srel = htab->srelgot;
4163 for (; local_got < end_local_got; ++local_got)
4164 {
4165 if (*local_got > 0)
4166 {
4167 *local_got = s->_raw_size;
4168 s->_raw_size += 4;
4169 if (info->shared)
4170 srel->_raw_size += sizeof (Elf32_External_Rela);
4171 }
4172 else
4173 *local_got = (bfd_vma) -1;
4174 }
4175 }
4176
4177 /* Allocate global sym .plt and .got entries, and space for global
4178 sym dynamic relocs. */
4179 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, (PTR) info);
4180
4181 /* We now have determined the sizes of the various dynamic sections.
4182 Allocate memory for them. */
4183 relocs = false;
4184 for (s = dynobj->sections; s != NULL; s = s->next)
4185 {
4186 if ((s->flags & SEC_LINKER_CREATED) == 0)
4187 continue;
4188
4189 if (s == htab->splt
4190 || s == htab->sgot
4191 || s == htab->sgotplt)
4192 {
4193 /* Strip this section if we don't need it; see the
4194 comment below. */
4195 }
4196 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
4197 {
4198 if (s->_raw_size != 0 && s != htab->srelplt)
4199 relocs = true;
4200
4201 /* We use the reloc_count field as a counter if we need
4202 to copy relocs into the output file. */
4203 s->reloc_count = 0;
4204 }
4205 else
4206 {
4207 /* It's not one of our sections, so don't allocate space. */
4208 continue;
4209 }
4210
4211 if (s->_raw_size == 0)
4212 {
4213 /* If we don't need this section, strip it from the
4214 output file. This is mostly to handle .rela.bss and
4215 .rela.plt. We must create both sections in
4216 create_dynamic_sections, because they must be created
4217 before the linker maps input sections to output
4218 sections. The linker does that before
4219 adjust_dynamic_symbol is called, and it is that
4220 function which decides whether anything needs to go
4221 into these sections. */
4222
4223 _bfd_strip_section_from_output (info, s);
4224 continue;
4225 }
4226
4227 /* Allocate memory for the section contents. We use bfd_zalloc
4228 here in case unused entries are not reclaimed before the
4229 section's contents are written out. This should not happen,
4230 but this way if it does, we get a R_SH_NONE reloc instead
4231 of garbage. */
4232 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
4233 if (s->contents == NULL)
4234 return false;
4235 }
4236
4237 if (htab->root.dynamic_sections_created)
4238 {
4239 /* Add some entries to the .dynamic section. We fill in the
4240 values later, in sh_elf_finish_dynamic_sections, but we
4241 must add the entries now so that we get the correct size for
4242 the .dynamic section. The DT_DEBUG entry is filled in by the
4243 dynamic linker and used by the debugger. */
4244 #define add_dynamic_entry(TAG, VAL) \
4245 bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
4246
4247 if (! info->shared)
4248 {
4249 if (! add_dynamic_entry (DT_DEBUG, 0))
4250 return false;
4251 }
4252
4253 if (htab->splt->_raw_size != 0)
4254 {
4255 if (! add_dynamic_entry (DT_PLTGOT, 0)
4256 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
4257 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
4258 || ! add_dynamic_entry (DT_JMPREL, 0))
4259 return false;
4260 }
4261
4262 if (relocs)
4263 {
4264 if (! add_dynamic_entry (DT_RELA, 0)
4265 || ! add_dynamic_entry (DT_RELASZ, 0)
4266 || ! add_dynamic_entry (DT_RELAENT,
4267 sizeof (Elf32_External_Rela)))
4268 return false;
4269
4270 /* If any dynamic relocs apply to a read-only section,
4271 then we need a DT_TEXTREL entry. */
4272 if ((info->flags & DF_TEXTREL) == 0)
4273 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
4274 (PTR) info);
4275
4276 if ((info->flags & DF_TEXTREL) != 0)
4277 {
4278 if (! add_dynamic_entry (DT_TEXTREL, 0))
4279 return false;
4280 }
4281 }
4282 }
4283 #undef add_dynamic_entry
4284
4285 return true;
4286 }
4287 \f
4288 /* Relocate an SH ELF section. */
4289
4290 static boolean
4291 sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
4292 contents, relocs, local_syms, local_sections)
4293 bfd *output_bfd;
4294 struct bfd_link_info *info;
4295 bfd *input_bfd;
4296 asection *input_section;
4297 bfd_byte *contents;
4298 Elf_Internal_Rela *relocs;
4299 Elf_Internal_Sym *local_syms;
4300 asection **local_sections;
4301 {
4302 struct elf_sh_link_hash_table *htab;
4303 Elf_Internal_Shdr *symtab_hdr;
4304 struct elf_link_hash_entry **sym_hashes;
4305 Elf_Internal_Rela *rel, *relend;
4306 bfd *dynobj;
4307 bfd_vma *local_got_offsets;
4308 asection *sgot;
4309 asection *sgotplt;
4310 asection *splt;
4311 asection *sreloc;
4312
4313 htab = sh_elf_hash_table (info);
4314 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
4315 sym_hashes = elf_sym_hashes (input_bfd);
4316 dynobj = htab->root.dynobj;
4317 local_got_offsets = elf_local_got_offsets (input_bfd);
4318
4319 sgot = htab->sgot;
4320 sgotplt = htab->sgotplt;
4321 splt = htab->splt;
4322 sreloc = NULL;
4323
4324 rel = relocs;
4325 relend = relocs + input_section->reloc_count;
4326 for (; rel < relend; rel++)
4327 {
4328 int r_type;
4329 reloc_howto_type *howto;
4330 unsigned long r_symndx;
4331 Elf_Internal_Sym *sym;
4332 asection *sec;
4333 struct elf_link_hash_entry *h;
4334 bfd_vma relocation;
4335 bfd_vma addend = (bfd_vma) 0;
4336 bfd_reloc_status_type r;
4337 int seen_stt_datalabel = 0;
4338
4339 r_symndx = ELF32_R_SYM (rel->r_info);
4340
4341 r_type = ELF32_R_TYPE (rel->r_info);
4342
4343 /* Many of the relocs are only used for relaxing, and are
4344 handled entirely by the relaxation code. */
4345 if (r_type > (int) R_SH_LAST_INVALID_RELOC
4346 && r_type < (int) R_SH_LOOP_START)
4347 continue;
4348 if (r_type == (int) R_SH_NONE)
4349 continue;
4350
4351 if (r_type < 0
4352 || r_type >= R_SH_max
4353 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
4354 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
4355 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
4356 && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
4357 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
4358 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
4359 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
4360 && r_type <= (int) R_SH_LAST_INVALID_RELOC_2))
4361 {
4362 bfd_set_error (bfd_error_bad_value);
4363 return false;
4364 }
4365
4366 howto = sh_elf_howto_table + r_type;
4367
4368 /* For relocs that aren't partial_inplace, we get the addend from
4369 the relocation. */
4370 if (! howto->partial_inplace)
4371 addend = rel->r_addend;
4372
4373 h = NULL;
4374 sym = NULL;
4375 sec = NULL;
4376 if (r_symndx < symtab_hdr->sh_info)
4377 {
4378 sym = local_syms + r_symndx;
4379 sec = local_sections[r_symndx];
4380 relocation = (sec->output_section->vma
4381 + sec->output_offset
4382 + sym->st_value);
4383 /* A local symbol never has STO_SH5_ISA32, so we don't need
4384 datalabel processing here. Make sure this does not change
4385 without notice. */
4386 if ((sym->st_other & STO_SH5_ISA32) != 0)
4387 ((*info->callbacks->reloc_dangerous)
4388 (info,
4389 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
4390 input_bfd, input_section, rel->r_offset));
4391 if (info->relocateable)
4392 {
4393 /* This is a relocateable link. We don't have to change
4394 anything, unless the reloc is against a section symbol,
4395 in which case we have to adjust according to where the
4396 section symbol winds up in the output section. */
4397 sym = local_syms + r_symndx;
4398 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
4399 {
4400 if (! howto->partial_inplace)
4401 {
4402 /* For relocations with the addend in the
4403 relocation, we need just to update the addend.
4404 All real relocs are of type partial_inplace; this
4405 code is mostly for completeness. */
4406 rel->r_addend += sec->output_offset + sym->st_value;
4407
4408 continue;
4409 }
4410
4411 /* Relocs of type partial_inplace need to pick up the
4412 contents in the contents and add the offset resulting
4413 from the changed location of the section symbol.
4414 Using _bfd_final_link_relocate (e.g. goto
4415 final_link_relocate) here would be wrong, because
4416 relocations marked pc_relative would get the current
4417 location subtracted, and we must only do that at the
4418 final link. */
4419 r = _bfd_relocate_contents (howto, input_bfd,
4420 sec->output_offset
4421 + sym->st_value,
4422 contents + rel->r_offset);
4423 goto relocation_done;
4424 }
4425
4426 continue;
4427 }
4428 else if (! howto->partial_inplace)
4429 {
4430 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
4431 addend = rel->r_addend;
4432 }
4433 else if ((sec->flags & SEC_MERGE)
4434 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
4435 {
4436 asection *msec;
4437
4438 if (howto->rightshift || howto->src_mask != 0xffffffff)
4439 {
4440 (*_bfd_error_handler)
4441 (_("%s(%s+0x%lx): %s relocation against SEC_MERGE section"),
4442 bfd_archive_filename (input_bfd),
4443 bfd_get_section_name (input_bfd, input_section),
4444 (long) rel->r_offset, howto->name);
4445 return false;
4446 }
4447
4448 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
4449 msec = sec;
4450 addend =
4451 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
4452 - relocation;
4453 addend += msec->output_section->vma + msec->output_offset;
4454 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
4455 addend = 0;
4456 }
4457 }
4458 else
4459 {
4460 /* Section symbol are never (?) placed in the hash table, so
4461 we can just ignore hash relocations when creating a
4462 relocateable object file. */
4463 if (info->relocateable)
4464 continue;
4465
4466 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4467 while (h->root.type == bfd_link_hash_indirect
4468 || h->root.type == bfd_link_hash_warning)
4469 {
4470 #ifdef INCLUDE_SHMEDIA
4471 /* If the reference passes a symbol marked with
4472 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
4473 doesn't count. */
4474 seen_stt_datalabel |= h->type == STT_DATALABEL;
4475 #endif
4476 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4477 }
4478 if (h->root.type == bfd_link_hash_defined
4479 || h->root.type == bfd_link_hash_defweak)
4480 {
4481 boolean dyn;
4482
4483 dyn = htab->root.dynamic_sections_created;
4484 sec = h->root.u.def.section;
4485 /* In these cases, we don't need the relocation value.
4486 We check specially because in some obscure cases
4487 sec->output_section will be NULL. */
4488 if (r_type == R_SH_GOTPC
4489 || r_type == R_SH_GOTPC_LOW16
4490 || r_type == R_SH_GOTPC_MEDLOW16
4491 || r_type == R_SH_GOTPC_MEDHI16
4492 || r_type == R_SH_GOTPC_HI16
4493 || ((r_type == R_SH_PLT32
4494 || r_type == R_SH_PLT_LOW16
4495 || r_type == R_SH_PLT_MEDLOW16
4496 || r_type == R_SH_PLT_MEDHI16
4497 || r_type == R_SH_PLT_HI16)
4498 && h->plt.offset != (bfd_vma) -1)
4499 || ((r_type == R_SH_GOT32
4500 || r_type == R_SH_GOT_LOW16
4501 || r_type == R_SH_GOT_MEDLOW16
4502 || r_type == R_SH_GOT_MEDHI16
4503 || r_type == R_SH_GOT_HI16)
4504 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)
4505 && (! info->shared
4506 || (! info->symbolic && h->dynindx != -1)
4507 || (h->elf_link_hash_flags
4508 & ELF_LINK_HASH_DEF_REGULAR) == 0))
4509 /* The cases above are those in which relocation is
4510 overwritten in the switch block below. The cases
4511 below are those in which we must defer relocation
4512 to run-time, because we can't resolve absolute
4513 addresses when creating a shared library. */
4514 || (info->shared
4515 && ((! info->symbolic && h->dynindx != -1)
4516 || (h->elf_link_hash_flags
4517 & ELF_LINK_HASH_DEF_REGULAR) == 0)
4518 && ((r_type == R_SH_DIR32
4519 && (h->elf_link_hash_flags
4520 & ELF_LINK_FORCED_LOCAL) == 0)
4521 || r_type == R_SH_REL32)
4522 && ((input_section->flags & SEC_ALLOC) != 0
4523 /* DWARF will emit R_SH_DIR32 relocations in its
4524 sections against symbols defined externally
4525 in shared libraries. We can't do anything
4526 with them here. */
4527 || ((input_section->flags & SEC_DEBUGGING) != 0
4528 && (h->elf_link_hash_flags
4529 & ELF_LINK_HASH_DEF_DYNAMIC) != 0))))
4530 relocation = 0;
4531 else if (sec->output_section == NULL)
4532 {
4533 (*_bfd_error_handler)
4534 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
4535 bfd_archive_filename (input_bfd), h->root.root.string,
4536 bfd_get_section_name (input_bfd, input_section));
4537 relocation = 0;
4538 }
4539 else
4540 relocation = ((h->root.u.def.value
4541 + sec->output_section->vma
4542 + sec->output_offset)
4543 /* A STO_SH5_ISA32 causes a "bitor 1" to the
4544 symbol value, unless we've seen
4545 STT_DATALABEL on the way to it. */
4546 | ((h->other & STO_SH5_ISA32) != 0
4547 && ! seen_stt_datalabel));
4548 }
4549 else if (h->root.type == bfd_link_hash_undefweak)
4550 relocation = 0;
4551 else if (info->shared
4552 && (! info->symbolic || info->allow_shlib_undefined)
4553 && ! info->no_undefined
4554 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
4555 relocation = 0;
4556 else
4557 {
4558 if (! ((*info->callbacks->undefined_symbol)
4559 (info, h->root.root.string, input_bfd,
4560 input_section, rel->r_offset,
4561 (!info->shared || info->no_undefined
4562 || ELF_ST_VISIBILITY (h->other)))))
4563 return false;
4564 relocation = 0;
4565 }
4566 }
4567
4568 switch ((int) r_type)
4569 {
4570 final_link_relocate:
4571 /* COFF relocs don't use the addend. The addend is used for
4572 R_SH_DIR32 to be compatible with other compilers. */
4573 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4574 contents, rel->r_offset,
4575 relocation, addend);
4576 break;
4577
4578 case R_SH_IND12W:
4579 relocation -= 4;
4580 goto final_link_relocate;
4581
4582 case R_SH_DIR8WPN:
4583 case R_SH_DIR8WPZ:
4584 case R_SH_DIR8WPL:
4585 /* If the reloc is against the start of this section, then
4586 the assembler has already taken care of it and the reloc
4587 is here only to assist in relaxing. If the reloc is not
4588 against the start of this section, then it's against an
4589 external symbol and we must deal with it ourselves. */
4590 if (input_section->output_section->vma + input_section->output_offset
4591 != relocation)
4592 {
4593 int disp = (relocation
4594 - input_section->output_section->vma
4595 - input_section->output_offset
4596 - rel->r_offset);
4597 int mask = 0;
4598 switch (r_type)
4599 {
4600 case R_SH_DIR8WPN:
4601 case R_SH_DIR8WPZ: mask = 1; break;
4602 case R_SH_DIR8WPL: mask = 3; break;
4603 default: mask = 0; break;
4604 }
4605 if (disp & mask)
4606 {
4607 ((*_bfd_error_handler)
4608 (_("%s: 0x%lx: fatal: unaligned branch target for relax-support relocation"),
4609 bfd_archive_filename (input_section->owner),
4610 (unsigned long) rel->r_offset));
4611 bfd_set_error (bfd_error_bad_value);
4612 return false;
4613 }
4614 relocation -= 4;
4615 goto final_link_relocate;
4616 }
4617 r = bfd_reloc_ok;
4618 break;
4619
4620 default:
4621 #ifdef INCLUDE_SHMEDIA
4622 if (shmedia_prepare_reloc (info, input_bfd, input_section,
4623 contents, rel, &relocation))
4624 goto final_link_relocate;
4625 #endif
4626 bfd_set_error (bfd_error_bad_value);
4627 return false;
4628
4629 case R_SH_DIR32:
4630 case R_SH_REL32:
4631 if (info->shared
4632 && r_symndx != 0
4633 && (input_section->flags & SEC_ALLOC) != 0
4634 && (r_type != R_SH_REL32
4635 || (h != NULL
4636 && h->dynindx != -1
4637 && (! info->symbolic
4638 || (h->elf_link_hash_flags
4639 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
4640 {
4641 Elf_Internal_Rela outrel;
4642 boolean skip, relocate;
4643
4644 /* When generating a shared object, these relocations
4645 are copied into the output file to be resolved at run
4646 time. */
4647
4648 if (sreloc == NULL)
4649 {
4650 const char *name;
4651
4652 name = (bfd_elf_string_from_elf_section
4653 (input_bfd,
4654 elf_elfheader (input_bfd)->e_shstrndx,
4655 elf_section_data (input_section)->rel_hdr.sh_name));
4656 if (name == NULL)
4657 return false;
4658
4659 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
4660 && strcmp (bfd_get_section_name (input_bfd,
4661 input_section),
4662 name + 5) == 0);
4663
4664 sreloc = bfd_get_section_by_name (dynobj, name);
4665 BFD_ASSERT (sreloc != NULL);
4666 }
4667
4668 skip = false;
4669 relocate = false;
4670
4671 outrel.r_offset =
4672 _bfd_elf_section_offset (output_bfd, info, input_section,
4673 rel->r_offset);
4674 if (outrel.r_offset == (bfd_vma) -1)
4675 skip = true;
4676 else if (outrel.r_offset == (bfd_vma) -2)
4677 skip = true, relocate = true;
4678 outrel.r_offset += (input_section->output_section->vma
4679 + input_section->output_offset);
4680
4681 if (skip)
4682 memset (&outrel, 0, sizeof outrel);
4683 else if (r_type == R_SH_REL32)
4684 {
4685 BFD_ASSERT (h != NULL && h->dynindx != -1);
4686 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
4687 outrel.r_addend
4688 = bfd_get_32 (input_bfd, contents + rel->r_offset);
4689 }
4690 else
4691 {
4692 /* h->dynindx may be -1 if this symbol was marked to
4693 become local. */
4694 if (h == NULL
4695 || ((info->symbolic || h->dynindx == -1)
4696 && (h->elf_link_hash_flags
4697 & ELF_LINK_HASH_DEF_REGULAR) != 0))
4698 {
4699 relocate = true;
4700 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4701 outrel.r_addend
4702 = relocation + bfd_get_32 (input_bfd,
4703 contents + rel->r_offset);
4704 }
4705 else
4706 {
4707 BFD_ASSERT (h->dynindx != -1);
4708 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
4709 outrel.r_addend
4710 = relocation + bfd_get_32 (input_bfd,
4711 contents + rel->r_offset);
4712 }
4713 }
4714
4715 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
4716 (((Elf32_External_Rela *)
4717 sreloc->contents)
4718 + sreloc->reloc_count));
4719 ++sreloc->reloc_count;
4720
4721 /* If this reloc is against an external symbol, we do
4722 not want to fiddle with the addend. Otherwise, we
4723 need to include the symbol value so that it becomes
4724 an addend for the dynamic reloc. */
4725 if (! relocate)
4726 continue;
4727 }
4728 goto final_link_relocate;
4729
4730 case R_SH_GOTPLT32:
4731 #ifdef INCLUDE_SHMEDIA
4732 case R_SH_GOTPLT_LOW16:
4733 case R_SH_GOTPLT_MEDLOW16:
4734 case R_SH_GOTPLT_MEDHI16:
4735 case R_SH_GOTPLT_HI16:
4736 case R_SH_GOTPLT10BY4:
4737 case R_SH_GOTPLT10BY8:
4738 #endif
4739 /* Relocation is to the entry for this symbol in the
4740 procedure linkage table. */
4741
4742 if (h == NULL
4743 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)
4744 || ! info->shared
4745 || info->symbolic
4746 || h->dynindx == -1
4747 || h->plt.offset == (bfd_vma) -1
4748 || h->got.offset != (bfd_vma) -1)
4749 goto force_got;
4750
4751 /* Relocation is to the entry for this symbol in the global
4752 offset table extension for the procedure linkage table. */
4753
4754 BFD_ASSERT (sgotplt != NULL);
4755 relocation = (sgotplt->output_offset
4756 + ((h->plt.offset / elf_sh_sizeof_plt (info)
4757 - 1 + 3) * 4));
4758
4759 #ifdef GOT_BIAS
4760 relocation -= GOT_BIAS;
4761 #endif
4762
4763 goto final_link_relocate;
4764
4765 force_got:
4766 case R_SH_GOT32:
4767 #ifdef INCLUDE_SHMEDIA
4768 case R_SH_GOT_LOW16:
4769 case R_SH_GOT_MEDLOW16:
4770 case R_SH_GOT_MEDHI16:
4771 case R_SH_GOT_HI16:
4772 case R_SH_GOT10BY4:
4773 case R_SH_GOT10BY8:
4774 #endif
4775 /* Relocation is to the entry for this symbol in the global
4776 offset table. */
4777
4778 BFD_ASSERT (sgot != NULL);
4779
4780 if (h != NULL)
4781 {
4782 bfd_vma off;
4783 boolean dyn;
4784
4785 off = h->got.offset;
4786 #ifdef INCLUDE_SHMEDIA
4787 if (seen_stt_datalabel)
4788 {
4789 struct elf_sh_link_hash_entry *hsh;
4790
4791 hsh = (struct elf_sh_link_hash_entry *)h;
4792 off = hsh->datalabel_got_offset;
4793 }
4794 #endif
4795 BFD_ASSERT (off != (bfd_vma) -1);
4796
4797 dyn = htab->root.dynamic_sections_created;
4798 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)
4799 || (info->shared
4800 && (info->symbolic || h->dynindx == -1
4801 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
4802 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
4803 {
4804 /* This is actually a static link, or it is a
4805 -Bsymbolic link and the symbol is defined
4806 locally, or the symbol was forced to be local
4807 because of a version file. We must initialize
4808 this entry in the global offset table. Since the
4809 offset must always be a multiple of 4, we use the
4810 least significant bit to record whether we have
4811 initialized it already.
4812
4813 When doing a dynamic link, we create a .rela.got
4814 relocation entry to initialize the value. This
4815 is done in the finish_dynamic_symbol routine. */
4816 if ((off & 1) != 0)
4817 off &= ~1;
4818 else
4819 {
4820 bfd_put_32 (output_bfd, relocation,
4821 sgot->contents + off);
4822 #ifdef INCLUDE_SHMEDIA
4823 if (seen_stt_datalabel)
4824 {
4825 struct elf_sh_link_hash_entry *hsh;
4826
4827 hsh = (struct elf_sh_link_hash_entry *)h;
4828 hsh->datalabel_got_offset |= 1;
4829 }
4830 else
4831 #endif
4832 h->got.offset |= 1;
4833 }
4834 }
4835
4836 relocation = sgot->output_offset + off;
4837 }
4838 else
4839 {
4840 bfd_vma off;
4841
4842 #ifdef INCLUDE_SHMEDIA
4843 if (rel->r_addend)
4844 {
4845 BFD_ASSERT (local_got_offsets != NULL
4846 && (local_got_offsets[symtab_hdr->sh_info
4847 + r_symndx]
4848 != (bfd_vma) -1));
4849
4850 off = local_got_offsets[symtab_hdr->sh_info
4851 + r_symndx];
4852 }
4853 else
4854 {
4855 #endif
4856 BFD_ASSERT (local_got_offsets != NULL
4857 && local_got_offsets[r_symndx] != (bfd_vma) -1);
4858
4859 off = local_got_offsets[r_symndx];
4860 #ifdef INCLUDE_SHMEDIA
4861 }
4862 #endif
4863
4864 /* The offset must always be a multiple of 4. We use
4865 the least significant bit to record whether we have
4866 already generated the necessary reloc. */
4867 if ((off & 1) != 0)
4868 off &= ~1;
4869 else
4870 {
4871 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
4872
4873 if (info->shared)
4874 {
4875 asection *srelgot;
4876 Elf_Internal_Rela outrel;
4877
4878 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
4879 BFD_ASSERT (srelgot != NULL);
4880
4881 outrel.r_offset = (sgot->output_section->vma
4882 + sgot->output_offset
4883 + off);
4884 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4885 outrel.r_addend = relocation;
4886 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
4887 (((Elf32_External_Rela *)
4888 srelgot->contents)
4889 + srelgot->reloc_count));
4890 ++srelgot->reloc_count;
4891 }
4892
4893 #ifdef INCLUDE_SHMEDIA
4894 if (rel->r_addend)
4895 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
4896 else
4897 #endif
4898 local_got_offsets[r_symndx] |= 1;
4899 }
4900
4901 relocation = sgot->output_offset + off;
4902 }
4903
4904 #ifdef GOT_BIAS
4905 relocation -= GOT_BIAS;
4906 #endif
4907
4908 goto final_link_relocate;
4909
4910 case R_SH_GOTOFF:
4911 #ifdef INCLUDE_SHMEDIA
4912 case R_SH_GOTOFF_LOW16:
4913 case R_SH_GOTOFF_MEDLOW16:
4914 case R_SH_GOTOFF_MEDHI16:
4915 case R_SH_GOTOFF_HI16:
4916 #endif
4917 /* Relocation is relative to the start of the global offset
4918 table. */
4919
4920 BFD_ASSERT (sgot != NULL);
4921
4922 /* Note that sgot->output_offset is not involved in this
4923 calculation. We always want the start of .got. If we
4924 defined _GLOBAL_OFFSET_TABLE in a different way, as is
4925 permitted by the ABI, we might have to change this
4926 calculation. */
4927 relocation -= sgot->output_section->vma;
4928
4929 #ifdef GOT_BIAS
4930 relocation -= GOT_BIAS;
4931 #endif
4932
4933 addend = rel->r_addend;
4934
4935 goto final_link_relocate;
4936
4937 case R_SH_GOTPC:
4938 #ifdef INCLUDE_SHMEDIA
4939 case R_SH_GOTPC_LOW16:
4940 case R_SH_GOTPC_MEDLOW16:
4941 case R_SH_GOTPC_MEDHI16:
4942 case R_SH_GOTPC_HI16:
4943 #endif
4944 /* Use global offset table as symbol value. */
4945
4946 BFD_ASSERT (sgot != NULL);
4947 relocation = sgot->output_section->vma;
4948
4949 #ifdef GOT_BIAS
4950 relocation += GOT_BIAS;
4951 #endif
4952
4953 addend = rel->r_addend;
4954
4955 goto final_link_relocate;
4956
4957 case R_SH_PLT32:
4958 #ifdef INCLUDE_SHMEDIA
4959 case R_SH_PLT_LOW16:
4960 case R_SH_PLT_MEDLOW16:
4961 case R_SH_PLT_MEDHI16:
4962 case R_SH_PLT_HI16:
4963 #endif
4964 /* Relocation is to the entry for this symbol in the
4965 procedure linkage table. */
4966
4967 /* Resolve a PLT reloc against a local symbol directly,
4968 without using the procedure linkage table. */
4969 if (h == NULL)
4970 goto final_link_relocate;
4971
4972 if (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)
4973 goto final_link_relocate;
4974
4975 if (h->plt.offset == (bfd_vma) -1)
4976 {
4977 /* We didn't make a PLT entry for this symbol. This
4978 happens when statically linking PIC code, or when
4979 using -Bsymbolic. */
4980 goto final_link_relocate;
4981 }
4982
4983 BFD_ASSERT (splt != NULL);
4984 relocation = (splt->output_section->vma
4985 + splt->output_offset
4986 + h->plt.offset);
4987
4988 #ifdef INCLUDE_SHMEDIA
4989 relocation++;
4990 #endif
4991
4992 addend = rel->r_addend;
4993
4994 goto final_link_relocate;
4995
4996 case R_SH_LOOP_START:
4997 {
4998 static bfd_vma start, end;
4999
5000 start = (relocation + rel->r_addend
5001 - (sec->output_section->vma + sec->output_offset));
5002 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
5003 rel->r_offset, sec, start, end);
5004 break;
5005
5006 case R_SH_LOOP_END:
5007 end = (relocation + rel->r_addend
5008 - (sec->output_section->vma + sec->output_offset));
5009 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
5010 rel->r_offset, sec, start, end);
5011 break;
5012 }
5013 }
5014
5015 relocation_done:
5016 if (r != bfd_reloc_ok)
5017 {
5018 switch (r)
5019 {
5020 default:
5021 case bfd_reloc_outofrange:
5022 abort ();
5023 case bfd_reloc_overflow:
5024 {
5025 const char *name;
5026
5027 if (h != NULL)
5028 name = h->root.root.string;
5029 else
5030 {
5031 name = (bfd_elf_string_from_elf_section
5032 (input_bfd, symtab_hdr->sh_link, sym->st_name));
5033 if (name == NULL)
5034 return false;
5035 if (*name == '\0')
5036 name = bfd_section_name (input_bfd, sec);
5037 }
5038 if (! ((*info->callbacks->reloc_overflow)
5039 (info, name, howto->name, (bfd_vma) 0,
5040 input_bfd, input_section, rel->r_offset)))
5041 return false;
5042 }
5043 break;
5044 }
5045 }
5046 }
5047
5048 return true;
5049 }
5050
5051 /* This is a version of bfd_generic_get_relocated_section_contents
5052 which uses sh_elf_relocate_section. */
5053
5054 static bfd_byte *
5055 sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
5056 data, relocateable, symbols)
5057 bfd *output_bfd;
5058 struct bfd_link_info *link_info;
5059 struct bfd_link_order *link_order;
5060 bfd_byte *data;
5061 boolean relocateable;
5062 asymbol **symbols;
5063 {
5064 Elf_Internal_Shdr *symtab_hdr;
5065 asection *input_section = link_order->u.indirect.section;
5066 bfd *input_bfd = input_section->owner;
5067 asection **sections = NULL;
5068 Elf_Internal_Rela *internal_relocs = NULL;
5069 Elf_Internal_Sym *isymbuf = NULL;
5070
5071 /* We only need to handle the case of relaxing, or of having a
5072 particular set of section contents, specially. */
5073 if (relocateable
5074 || elf_section_data (input_section)->this_hdr.contents == NULL)
5075 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
5076 link_order, data,
5077 relocateable,
5078 symbols);
5079
5080 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
5081
5082 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
5083 (size_t) input_section->_raw_size);
5084
5085 if ((input_section->flags & SEC_RELOC) != 0
5086 && input_section->reloc_count > 0)
5087 {
5088 asection **secpp;
5089 Elf_Internal_Sym *isym, *isymend;
5090 bfd_size_type amt;
5091
5092 internal_relocs = (_bfd_elf32_link_read_relocs
5093 (input_bfd, input_section, (PTR) NULL,
5094 (Elf_Internal_Rela *) NULL, false));
5095 if (internal_relocs == NULL)
5096 goto error_return;
5097
5098 if (symtab_hdr->sh_info != 0)
5099 {
5100 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5101 if (isymbuf == NULL)
5102 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
5103 symtab_hdr->sh_info, 0,
5104 NULL, NULL, NULL);
5105 if (isymbuf == NULL)
5106 goto error_return;
5107 }
5108
5109 amt = symtab_hdr->sh_info;
5110 amt *= sizeof (asection *);
5111 sections = (asection **) bfd_malloc (amt);
5112 if (sections == NULL && amt != 0)
5113 goto error_return;
5114
5115 isymend = isymbuf + symtab_hdr->sh_info;
5116 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
5117 {
5118 asection *isec;
5119
5120 if (isym->st_shndx == SHN_UNDEF)
5121 isec = bfd_und_section_ptr;
5122 else if (isym->st_shndx == SHN_ABS)
5123 isec = bfd_abs_section_ptr;
5124 else if (isym->st_shndx == SHN_COMMON)
5125 isec = bfd_com_section_ptr;
5126 else
5127 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
5128
5129 *secpp = isec;
5130 }
5131
5132 if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
5133 input_section, data, internal_relocs,
5134 isymbuf, sections))
5135 goto error_return;
5136
5137 if (sections != NULL)
5138 free (sections);
5139 if (isymbuf != NULL
5140 && symtab_hdr->contents != (unsigned char *) isymbuf)
5141 free (isymbuf);
5142 if (elf_section_data (input_section)->relocs != internal_relocs)
5143 free (internal_relocs);
5144 }
5145
5146 return data;
5147
5148 error_return:
5149 if (sections != NULL)
5150 free (sections);
5151 if (isymbuf != NULL
5152 && symtab_hdr->contents != (unsigned char *) isymbuf)
5153 free (isymbuf);
5154 if (internal_relocs != NULL
5155 && elf_section_data (input_section)->relocs != internal_relocs)
5156 free (internal_relocs);
5157 return NULL;
5158 }
5159
5160 static asection *
5161 sh_elf_gc_mark_hook (sec, info, rel, h, sym)
5162 asection *sec;
5163 struct bfd_link_info *info ATTRIBUTE_UNUSED;
5164 Elf_Internal_Rela *rel;
5165 struct elf_link_hash_entry *h;
5166 Elf_Internal_Sym *sym;
5167 {
5168 if (h != NULL)
5169 {
5170 switch (ELF32_R_TYPE (rel->r_info))
5171 {
5172 case R_SH_GNU_VTINHERIT:
5173 case R_SH_GNU_VTENTRY:
5174 break;
5175
5176 default:
5177 #ifdef INCLUDE_SHMEDIA
5178 while (h->root.type == bfd_link_hash_indirect
5179 && h->root.u.i.link)
5180 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5181 #endif
5182 switch (h->root.type)
5183 {
5184 case bfd_link_hash_defined:
5185 case bfd_link_hash_defweak:
5186 return h->root.u.def.section;
5187
5188 case bfd_link_hash_common:
5189 return h->root.u.c.p->section;
5190
5191 default:
5192 break;
5193 }
5194 }
5195 }
5196 else
5197 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
5198
5199 return NULL;
5200 }
5201
5202 /* Update the got entry reference counts for the section being removed. */
5203
5204 static boolean
5205 sh_elf_gc_sweep_hook (abfd, info, sec, relocs)
5206 bfd *abfd;
5207 struct bfd_link_info *info;
5208 asection *sec;
5209 const Elf_Internal_Rela *relocs;
5210 {
5211 Elf_Internal_Shdr *symtab_hdr;
5212 struct elf_link_hash_entry **sym_hashes;
5213 bfd_signed_vma *local_got_refcounts;
5214 const Elf_Internal_Rela *rel, *relend;
5215 unsigned long r_symndx;
5216 struct elf_link_hash_entry *h;
5217 struct elf_sh_link_hash_entry *eh;
5218
5219 elf_section_data (sec)->local_dynrel = NULL;
5220
5221 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5222 sym_hashes = elf_sym_hashes (abfd);
5223 local_got_refcounts = elf_local_got_refcounts (abfd);
5224
5225 relend = relocs + sec->reloc_count;
5226 for (rel = relocs; rel < relend; rel++)
5227 switch (ELF32_R_TYPE (rel->r_info))
5228 {
5229 case R_SH_GOT32:
5230 case R_SH_GOTOFF:
5231 case R_SH_GOTPC:
5232 #ifdef INCLUDE_SHMEDIA
5233 case R_SH_GOT_LOW16:
5234 case R_SH_GOT_MEDLOW16:
5235 case R_SH_GOT_MEDHI16:
5236 case R_SH_GOT_HI16:
5237 case R_SH_GOT10BY4:
5238 case R_SH_GOT10BY8:
5239 case R_SH_GOTOFF_LOW16:
5240 case R_SH_GOTOFF_MEDLOW16:
5241 case R_SH_GOTOFF_MEDHI16:
5242 case R_SH_GOTOFF_HI16:
5243 case R_SH_GOTPC_LOW16:
5244 case R_SH_GOTPC_MEDLOW16:
5245 case R_SH_GOTPC_MEDHI16:
5246 case R_SH_GOTPC_HI16:
5247 #endif
5248 r_symndx = ELF32_R_SYM (rel->r_info);
5249 if (r_symndx >= symtab_hdr->sh_info)
5250 {
5251 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5252 if (h->got.refcount > 0)
5253 h->got.refcount -= 1;
5254 }
5255 else if (local_got_refcounts != NULL)
5256 {
5257 if (local_got_refcounts[r_symndx] > 0)
5258 local_got_refcounts[r_symndx] -= 1;
5259 }
5260 break;
5261
5262 case R_SH_DIR32:
5263 case R_SH_REL32:
5264 r_symndx = ELF32_R_SYM (rel->r_info);
5265 if (r_symndx >= symtab_hdr->sh_info)
5266 {
5267 struct elf_sh_link_hash_entry *eh;
5268 struct elf_sh_dyn_relocs **pp;
5269 struct elf_sh_dyn_relocs *p;
5270
5271 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5272
5273 if (!info->shared && h->plt.refcount > 0)
5274 h->plt.refcount -= 1;
5275
5276 eh = (struct elf_sh_link_hash_entry *) h;
5277
5278 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5279 if (p->sec == sec)
5280 {
5281 if (ELF32_R_TYPE (rel->r_info) == R_SH_REL32)
5282 p->pc_count -= 1;
5283 p->count -= 1;
5284 if (p->count == 0)
5285 *pp = p->next;
5286 break;
5287 }
5288 }
5289 break;
5290
5291 case R_SH_PLT32:
5292 #ifdef INCLUDE_SHMEDIA
5293 case R_SH_PLT_LOW16:
5294 case R_SH_PLT_MEDLOW16:
5295 case R_SH_PLT_MEDHI16:
5296 case R_SH_PLT_HI16:
5297 #endif
5298 r_symndx = ELF32_R_SYM (rel->r_info);
5299 if (r_symndx >= symtab_hdr->sh_info)
5300 {
5301 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5302 if (h->plt.refcount > 0)
5303 h->plt.refcount -= 1;
5304 }
5305 break;
5306
5307 case R_SH_GOTPLT32:
5308 #ifdef INCLUDE_SHMEDIA
5309 case R_SH_GOTPLT_LOW16:
5310 case R_SH_GOTPLT_MEDLOW16:
5311 case R_SH_GOTPLT_MEDHI16:
5312 case R_SH_GOTPLT_HI16:
5313 case R_SH_GOTPLT10BY4:
5314 case R_SH_GOTPLT10BY8:
5315 #endif
5316 r_symndx = ELF32_R_SYM (rel->r_info);
5317 if (r_symndx >= symtab_hdr->sh_info)
5318 {
5319 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5320 eh = (struct elf_sh_link_hash_entry *) h;
5321 if (eh->gotplt_refcount > 0)
5322 {
5323 eh->gotplt_refcount -= 1;
5324 if (h->plt.refcount > 0)
5325 h->plt.refcount -= 1;
5326 }
5327 else if (h->got.refcount > 0)
5328 h->got.refcount -= 1;
5329 }
5330 else if (local_got_refcounts != NULL)
5331 {
5332 if (local_got_refcounts[r_symndx] > 0)
5333 local_got_refcounts[r_symndx] -= 1;
5334 }
5335 break;
5336
5337 default:
5338 break;
5339 }
5340
5341 return true;
5342 }
5343
5344 /* Copy the extra info we tack onto an elf_link_hash_entry. */
5345
5346 static void
5347 sh_elf_copy_indirect_symbol (bed, dir, ind)
5348 struct elf_backend_data *bed;
5349 struct elf_link_hash_entry *dir, *ind;
5350 {
5351 struct elf_sh_link_hash_entry *edir, *eind;
5352
5353 edir = (struct elf_sh_link_hash_entry *) dir;
5354 eind = (struct elf_sh_link_hash_entry *) ind;
5355
5356 if (eind->dyn_relocs != NULL)
5357 {
5358 if (edir->dyn_relocs != NULL)
5359 {
5360 struct elf_sh_dyn_relocs **pp;
5361 struct elf_sh_dyn_relocs *p;
5362
5363 BFD_ASSERT (ind->root.type != bfd_link_hash_indirect);
5364
5365 /* Add reloc counts against the weak sym to the strong sym
5366 list. Merge any entries against the same section. */
5367 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
5368 {
5369 struct elf_sh_dyn_relocs *q;
5370
5371 for (q = edir->dyn_relocs; q != NULL; q = q->next)
5372 if (q->sec == p->sec)
5373 {
5374 q->pc_count += p->pc_count;
5375 q->count += p->count;
5376 *pp = p->next;
5377 break;
5378 }
5379 if (q == NULL)
5380 pp = &p->next;
5381 }
5382 *pp = edir->dyn_relocs;
5383 }
5384
5385 edir->dyn_relocs = eind->dyn_relocs;
5386 eind->dyn_relocs = NULL;
5387 }
5388 edir->gotplt_refcount = eind->gotplt_refcount;
5389 eind->gotplt_refcount = 0;
5390
5391 _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
5392 }
5393
5394 /* Look through the relocs for a section during the first phase.
5395 Since we don't do .gots or .plts, we just need to consider the
5396 virtual table relocs for gc. */
5397
5398 static boolean
5399 sh_elf_check_relocs (abfd, info, sec, relocs)
5400 bfd *abfd;
5401 struct bfd_link_info *info;
5402 asection *sec;
5403 const Elf_Internal_Rela *relocs;
5404 {
5405 Elf_Internal_Shdr *symtab_hdr;
5406 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
5407 struct elf_sh_link_hash_table *htab;
5408 const Elf_Internal_Rela *rel;
5409 const Elf_Internal_Rela *rel_end;
5410 bfd *dynobj;
5411 bfd_vma *local_got_offsets;
5412 asection *sgot;
5413 asection *srelgot;
5414 asection *sreloc;
5415
5416 sgot = NULL;
5417 srelgot = NULL;
5418 sreloc = NULL;
5419
5420 if (info->relocateable)
5421 return true;
5422
5423 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5424 sym_hashes = elf_sym_hashes (abfd);
5425 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
5426 if (!elf_bad_symtab (abfd))
5427 sym_hashes_end -= symtab_hdr->sh_info;
5428
5429 htab = sh_elf_hash_table (info);
5430 dynobj = htab->root.dynobj;
5431 local_got_offsets = elf_local_got_offsets (abfd);
5432
5433 rel_end = relocs + sec->reloc_count;
5434 for (rel = relocs; rel < rel_end; rel++)
5435 {
5436 struct elf_link_hash_entry *h;
5437 unsigned long r_symndx;
5438
5439 r_symndx = ELF32_R_SYM (rel->r_info);
5440 if (r_symndx < symtab_hdr->sh_info)
5441 h = NULL;
5442 else
5443 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5444
5445 /* Some relocs require a global offset table. */
5446 if (htab->sgot == NULL)
5447 {
5448 switch (ELF32_R_TYPE (rel->r_info))
5449 {
5450 case R_SH_GOTPLT32:
5451 case R_SH_GOT32:
5452 case R_SH_GOTOFF:
5453 case R_SH_GOTPC:
5454 #ifdef INCLUDE_SHMEDIA
5455 case R_SH_GOTPLT_LOW16:
5456 case R_SH_GOTPLT_MEDLOW16:
5457 case R_SH_GOTPLT_MEDHI16:
5458 case R_SH_GOTPLT_HI16:
5459 case R_SH_GOTPLT10BY4:
5460 case R_SH_GOTPLT10BY8:
5461 case R_SH_GOT_LOW16:
5462 case R_SH_GOT_MEDLOW16:
5463 case R_SH_GOT_MEDHI16:
5464 case R_SH_GOT_HI16:
5465 case R_SH_GOT10BY4:
5466 case R_SH_GOT10BY8:
5467 case R_SH_GOTOFF_LOW16:
5468 case R_SH_GOTOFF_MEDLOW16:
5469 case R_SH_GOTOFF_MEDHI16:
5470 case R_SH_GOTOFF_HI16:
5471 case R_SH_GOTPC_LOW16:
5472 case R_SH_GOTPC_MEDLOW16:
5473 case R_SH_GOTPC_MEDHI16:
5474 case R_SH_GOTPC_HI16:
5475 #endif
5476 if (dynobj == NULL)
5477 htab->root.dynobj = dynobj = abfd;
5478 if (! create_got_section (dynobj, info))
5479 return false;
5480 break;
5481
5482 default:
5483 break;
5484 }
5485 }
5486
5487 switch (ELF32_R_TYPE (rel->r_info))
5488 {
5489 /* This relocation describes the C++ object vtable hierarchy.
5490 Reconstruct it for later use during GC. */
5491 case R_SH_GNU_VTINHERIT:
5492 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
5493 return false;
5494 break;
5495
5496 /* This relocation describes which C++ vtable entries are actually
5497 used. Record for later use during GC. */
5498 case R_SH_GNU_VTENTRY:
5499 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
5500 return false;
5501 break;
5502
5503 force_got:
5504 case R_SH_GOT32:
5505 #ifdef INCLUDE_SHMEDIA
5506 case R_SH_GOT_LOW16:
5507 case R_SH_GOT_MEDLOW16:
5508 case R_SH_GOT_MEDHI16:
5509 case R_SH_GOT_HI16:
5510 case R_SH_GOT10BY4:
5511 case R_SH_GOT10BY8:
5512 #endif
5513 if (h != NULL)
5514 h->got.refcount += 1;
5515 else
5516 {
5517 bfd_signed_vma *local_got_refcounts;
5518
5519 /* This is a global offset table entry for a local
5520 symbol. */
5521 local_got_refcounts = elf_local_got_refcounts (abfd);
5522 if (local_got_refcounts == NULL)
5523 {
5524 bfd_size_type size;
5525
5526 size = symtab_hdr->sh_info;
5527 size *= sizeof (bfd_signed_vma);
5528 #ifdef INCLUDE_SHMEDIA
5529 /* Reserve space for both the datalabel and
5530 codelabel local GOT offsets. */
5531 size *= 2;
5532 #endif
5533 local_got_refcounts = ((bfd_signed_vma *)
5534 bfd_zalloc (abfd, size));
5535 if (local_got_refcounts == NULL)
5536 return false;
5537 elf_local_got_refcounts (abfd) = local_got_refcounts;
5538 }
5539 local_got_refcounts[r_symndx] += 1;
5540 }
5541 break;
5542
5543 case R_SH_GOTPLT32:
5544 #ifdef INCLUDE_SHMEDIA
5545 case R_SH_GOTPLT_LOW16:
5546 case R_SH_GOTPLT_MEDLOW16:
5547 case R_SH_GOTPLT_MEDHI16:
5548 case R_SH_GOTPLT_HI16:
5549 case R_SH_GOTPLT10BY4:
5550 case R_SH_GOTPLT10BY8:
5551 #endif
5552 /* If this is a local symbol, we resolve it directly without
5553 creating a procedure linkage table entry. */
5554
5555 if (h == NULL
5556 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)
5557 || ! info->shared
5558 || info->symbolic
5559 || h->dynindx == -1)
5560 goto force_got;
5561
5562 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
5563 h->plt.refcount += 1;
5564 ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1;
5565
5566 break;
5567
5568 case R_SH_PLT32:
5569 #ifdef INCLUDE_SHMEDIA
5570 case R_SH_PLT_LOW16:
5571 case R_SH_PLT_MEDLOW16:
5572 case R_SH_PLT_MEDHI16:
5573 case R_SH_PLT_HI16:
5574 #endif
5575 /* This symbol requires a procedure linkage table entry. We
5576 actually build the entry in adjust_dynamic_symbol,
5577 because this might be a case of linking PIC code which is
5578 never referenced by a dynamic object, in which case we
5579 don't need to generate a procedure linkage table entry
5580 after all. */
5581
5582 /* If this is a local symbol, we resolve it directly without
5583 creating a procedure linkage table entry. */
5584 if (h == NULL)
5585 continue;
5586
5587 if (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)
5588 break;
5589
5590 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
5591 h->plt.refcount += 1;
5592 break;
5593
5594 case R_SH_DIR32:
5595 case R_SH_REL32:
5596 if (h != NULL && ! info->shared)
5597 {
5598 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
5599 h->plt.refcount += 1;
5600 }
5601
5602 /* If we are creating a shared library, and this is a reloc
5603 against a global symbol, or a non PC relative reloc
5604 against a local symbol, then we need to copy the reloc
5605 into the shared library. However, if we are linking with
5606 -Bsymbolic, we do not need to copy a reloc against a
5607 global symbol which is defined in an object we are
5608 including in the link (i.e., DEF_REGULAR is set). At
5609 this point we have not seen all the input files, so it is
5610 possible that DEF_REGULAR is not set now but will be set
5611 later (it is never cleared). We account for that
5612 possibility below by storing information in the
5613 dyn_relocs field of the hash table entry. A similar
5614 situation occurs when creating shared libraries and symbol
5615 visibility changes render the symbol local.
5616
5617 If on the other hand, we are creating an executable, we
5618 may need to keep relocations for symbols satisfied by a
5619 dynamic library if we manage to avoid copy relocs for the
5620 symbol. */
5621 if ((info->shared
5622 && (sec->flags & SEC_ALLOC) != 0
5623 && (ELF32_R_TYPE (rel->r_info) != R_SH_REL32
5624 || (h != NULL
5625 && (! info->symbolic
5626 || h->root.type == bfd_link_hash_defweak
5627 || (h->elf_link_hash_flags
5628 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
5629 || (! info->shared
5630 && (sec->flags & SEC_ALLOC) != 0
5631 && h != NULL
5632 && (h->root.type == bfd_link_hash_defweak
5633 || (h->elf_link_hash_flags
5634 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
5635 {
5636 struct elf_sh_dyn_relocs *p;
5637 struct elf_sh_dyn_relocs **head;
5638
5639 if (dynobj == NULL)
5640 htab->root.dynobj = dynobj = abfd;
5641
5642 /* When creating a shared object, we must copy these
5643 reloc types into the output file. We create a reloc
5644 section in dynobj and make room for this reloc. */
5645 if (sreloc == NULL)
5646 {
5647 const char *name;
5648
5649 name = (bfd_elf_string_from_elf_section
5650 (abfd,
5651 elf_elfheader (abfd)->e_shstrndx,
5652 elf_section_data (sec)->rel_hdr.sh_name));
5653 if (name == NULL)
5654 return false;
5655
5656 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
5657 && strcmp (bfd_get_section_name (abfd, sec),
5658 name + 5) == 0);
5659
5660 sreloc = bfd_get_section_by_name (dynobj, name);
5661 if (sreloc == NULL)
5662 {
5663 flagword flags;
5664
5665 sreloc = bfd_make_section (dynobj, name);
5666 flags = (SEC_HAS_CONTENTS | SEC_READONLY
5667 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
5668 if ((sec->flags & SEC_ALLOC) != 0)
5669 flags |= SEC_ALLOC | SEC_LOAD;
5670 if (sreloc == NULL
5671 || ! bfd_set_section_flags (dynobj, sreloc, flags)
5672 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
5673 return false;
5674 }
5675 if (sec->flags & SEC_READONLY)
5676 info->flags |= DF_TEXTREL;
5677 elf_section_data (sec)->sreloc = sreloc;
5678 }
5679
5680 /* If this is a global symbol, we count the number of
5681 relocations we need for this symbol. */
5682 if (h != NULL)
5683 head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs;
5684 else
5685 {
5686 asection *s;
5687
5688 /* Track dynamic relocs needed for local syms too. */
5689 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
5690 sec, r_symndx);
5691 if (s == NULL)
5692 return false;
5693
5694 head = ((struct elf_sh_dyn_relocs **)
5695 &elf_section_data (s)->local_dynrel);
5696 }
5697
5698 p = *head;
5699 if (p == NULL || p->sec != sec)
5700 {
5701 bfd_size_type amt = sizeof (*p);
5702 p = ((struct elf_sh_dyn_relocs *) bfd_alloc (dynobj, amt));
5703 if (p == NULL)
5704 return false;
5705 p->next = *head;
5706 *head = p;
5707 p->sec = sec;
5708 p->count = 0;
5709 p->pc_count = 0;
5710 }
5711
5712 p->count += 1;
5713 if (ELF32_R_TYPE (rel->r_info) == R_SH_REL32)
5714 p->pc_count += 1;
5715 }
5716
5717 break;
5718 }
5719 }
5720
5721 return true;
5722 }
5723
5724 #ifndef sh_elf_set_mach_from_flags
5725 static boolean
5726 sh_elf_set_mach_from_flags (abfd)
5727 bfd *abfd;
5728 {
5729 flagword flags = elf_elfheader (abfd)->e_flags;
5730
5731 switch (flags & EF_SH_MACH_MASK)
5732 {
5733 case EF_SH1:
5734 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh);
5735 break;
5736 case EF_SH2:
5737 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh2);
5738 break;
5739 case EF_SH_DSP:
5740 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh_dsp);
5741 break;
5742 case EF_SH3:
5743 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3);
5744 break;
5745 case EF_SH3_DSP:
5746 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3_dsp);
5747 break;
5748 case EF_SH3E:
5749 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3e);
5750 break;
5751 case EF_SH_UNKNOWN:
5752 case EF_SH4:
5753 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh4);
5754 break;
5755 default:
5756 return false;
5757 }
5758 return true;
5759 }
5760 #endif /* not sh_elf_set_mach_from_flags */
5761
5762 #ifndef sh_elf_set_private_flags
5763 /* Function to keep SH specific file flags. */
5764
5765 static boolean
5766 sh_elf_set_private_flags (abfd, flags)
5767 bfd *abfd;
5768 flagword flags;
5769 {
5770 BFD_ASSERT (! elf_flags_init (abfd)
5771 || elf_elfheader (abfd)->e_flags == flags);
5772
5773 elf_elfheader (abfd)->e_flags = flags;
5774 elf_flags_init (abfd) = true;
5775 return sh_elf_set_mach_from_flags (abfd);
5776 }
5777 #endif /* not sh_elf_set_private_flags */
5778
5779 #ifndef sh_elf_copy_private_data
5780 /* Copy backend specific data from one object module to another */
5781
5782 static boolean
5783 sh_elf_copy_private_data (ibfd, obfd)
5784 bfd * ibfd;
5785 bfd * obfd;
5786 {
5787 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
5788 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
5789 return true;
5790
5791 return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
5792 }
5793 #endif /* not sh_elf_copy_private_data */
5794
5795 #ifndef sh_elf_merge_private_data
5796 /* This routine checks for linking big and little endian objects
5797 together, and for linking sh-dsp with sh3e / sh4 objects. */
5798
5799 static boolean
5800 sh_elf_merge_private_data (ibfd, obfd)
5801 bfd *ibfd;
5802 bfd *obfd;
5803 {
5804 flagword old_flags, new_flags;
5805
5806 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
5807 return false;
5808
5809 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
5810 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
5811 return true;
5812
5813 if (! elf_flags_init (obfd))
5814 {
5815 /* This happens when ld starts out with a 'blank' output file. */
5816 elf_flags_init (obfd) = true;
5817 elf_elfheader (obfd)->e_flags = EF_SH1;
5818 }
5819 old_flags = elf_elfheader (obfd)->e_flags;
5820 new_flags = elf_elfheader (ibfd)->e_flags;
5821 if ((EF_SH_HAS_DSP (old_flags) && EF_SH_HAS_FP (new_flags))
5822 || (EF_SH_HAS_DSP (new_flags) && EF_SH_HAS_FP (old_flags)))
5823 {
5824 (*_bfd_error_handler)
5825 ("%s: uses %s instructions while previous modules use %s instructions",
5826 bfd_archive_filename (ibfd),
5827 EF_SH_HAS_DSP (new_flags) ? "dsp" : "floating point",
5828 EF_SH_HAS_DSP (new_flags) ? "floating point" : "dsp");
5829 bfd_set_error (bfd_error_bad_value);
5830 return false;
5831 }
5832 elf_elfheader (obfd)->e_flags = EF_SH_MERGE_MACH (old_flags, new_flags);
5833
5834 return sh_elf_set_mach_from_flags (obfd);
5835 }
5836 #endif /* not sh_elf_merge_private_data */
5837
5838 /* Finish up dynamic symbol handling. We set the contents of various
5839 dynamic sections here. */
5840
5841 static boolean
5842 sh_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
5843 bfd *output_bfd;
5844 struct bfd_link_info *info;
5845 struct elf_link_hash_entry *h;
5846 Elf_Internal_Sym *sym;
5847 {
5848 struct elf_sh_link_hash_table *htab;
5849 bfd *dynobj;
5850
5851 htab = sh_elf_hash_table (info);
5852 dynobj = htab->root.dynobj;
5853
5854 if (h->plt.offset != (bfd_vma) -1)
5855 {
5856 asection *splt;
5857 asection *sgot;
5858 asection *srel;
5859
5860 bfd_vma plt_index;
5861 bfd_vma got_offset;
5862 Elf_Internal_Rela rel;
5863
5864 /* This symbol has an entry in the procedure linkage table. Set
5865 it up. */
5866
5867 BFD_ASSERT (h->dynindx != -1);
5868
5869 splt = htab->splt;
5870 sgot = htab->sgotplt;
5871 srel = htab->srelplt;
5872 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
5873
5874 /* Get the index in the procedure linkage table which
5875 corresponds to this symbol. This is the index of this symbol
5876 in all the symbols for which we are making plt entries. The
5877 first entry in the procedure linkage table is reserved. */
5878 plt_index = h->plt.offset / elf_sh_sizeof_plt (info) - 1;
5879
5880 /* Get the offset into the .got table of the entry that
5881 corresponds to this function. Each .got entry is 4 bytes.
5882 The first three are reserved. */
5883 got_offset = (plt_index + 3) * 4;
5884
5885 #ifdef GOT_BIAS
5886 if (info->shared)
5887 got_offset -= GOT_BIAS;
5888 #endif
5889
5890 /* Fill in the entry in the procedure linkage table. */
5891 if (! info->shared)
5892 {
5893 if (elf_sh_plt_entry == NULL)
5894 {
5895 elf_sh_plt_entry = (bfd_big_endian (output_bfd) ?
5896 elf_sh_plt_entry_be : elf_sh_plt_entry_le);
5897 }
5898 memcpy (splt->contents + h->plt.offset, elf_sh_plt_entry,
5899 elf_sh_sizeof_plt (info));
5900 #ifdef INCLUDE_SHMEDIA
5901 movi_shori_putval (output_bfd,
5902 (sgot->output_section->vma
5903 + sgot->output_offset
5904 + got_offset),
5905 (splt->contents + h->plt.offset
5906 + elf_sh_plt_symbol_offset (info)));
5907
5908 /* Set bottom bit because its for a branch to SHmedia */
5909 movi_shori_putval (output_bfd,
5910 (splt->output_section->vma + splt->output_offset)
5911 | 1,
5912 (splt->contents + h->plt.offset
5913 + elf_sh_plt_plt0_offset (info)));
5914 #else
5915 bfd_put_32 (output_bfd,
5916 (sgot->output_section->vma
5917 + sgot->output_offset
5918 + got_offset),
5919 (splt->contents + h->plt.offset
5920 + elf_sh_plt_symbol_offset (info)));
5921
5922 bfd_put_32 (output_bfd,
5923 (splt->output_section->vma + splt->output_offset),
5924 (splt->contents + h->plt.offset
5925 + elf_sh_plt_plt0_offset (info)));
5926 #endif
5927 }
5928 else
5929 {
5930 if (elf_sh_pic_plt_entry == NULL)
5931 {
5932 elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ?
5933 elf_sh_pic_plt_entry_be :
5934 elf_sh_pic_plt_entry_le);
5935 }
5936 memcpy (splt->contents + h->plt.offset, elf_sh_pic_plt_entry,
5937 elf_sh_sizeof_plt (info));
5938 #ifdef INCLUDE_SHMEDIA
5939 movi_shori_putval (output_bfd, got_offset,
5940 (splt->contents + h->plt.offset
5941 + elf_sh_plt_symbol_offset (info)));
5942 #else
5943 bfd_put_32 (output_bfd, got_offset,
5944 (splt->contents + h->plt.offset
5945 + elf_sh_plt_symbol_offset (info)));
5946 #endif
5947 }
5948
5949 #ifdef GOT_BIAS
5950 if (info->shared)
5951 got_offset += GOT_BIAS;
5952 #endif
5953
5954 #ifdef INCLUDE_SHMEDIA
5955 movi_shori_putval (output_bfd,
5956 plt_index * sizeof (Elf32_External_Rela),
5957 (splt->contents + h->plt.offset
5958 + elf_sh_plt_reloc_offset (info)));
5959 #else
5960 bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
5961 (splt->contents + h->plt.offset
5962 + elf_sh_plt_reloc_offset (info)));
5963 #endif
5964
5965 /* Fill in the entry in the global offset table. */
5966 bfd_put_32 (output_bfd,
5967 (splt->output_section->vma
5968 + splt->output_offset
5969 + h->plt.offset
5970 + elf_sh_plt_temp_offset (info)),
5971 sgot->contents + got_offset);
5972
5973 /* Fill in the entry in the .rela.plt section. */
5974 rel.r_offset = (sgot->output_section->vma
5975 + sgot->output_offset
5976 + got_offset);
5977 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
5978 rel.r_addend = 0;
5979 #ifdef GOT_BIAS
5980 rel.r_addend = GOT_BIAS;
5981 #endif
5982 bfd_elf32_swap_reloca_out (output_bfd, &rel,
5983 ((Elf32_External_Rela *) srel->contents
5984 + plt_index));
5985
5986 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
5987 {
5988 /* Mark the symbol as undefined, rather than as defined in
5989 the .plt section. Leave the value alone. */
5990 sym->st_shndx = SHN_UNDEF;
5991 }
5992 }
5993
5994 if (h->got.offset != (bfd_vma) -1)
5995 {
5996 asection *sgot;
5997 asection *srel;
5998 Elf_Internal_Rela rel;
5999
6000 /* This symbol has an entry in the global offset table. Set it
6001 up. */
6002
6003 sgot = htab->sgot;
6004 srel = htab->srelgot;
6005 BFD_ASSERT (sgot != NULL && srel != NULL);
6006
6007 rel.r_offset = (sgot->output_section->vma
6008 + sgot->output_offset
6009 + (h->got.offset &~ (bfd_vma) 1));
6010
6011 /* If this is a static link, or it is a -Bsymbolic link and the
6012 symbol is defined locally or was forced to be local because
6013 of a version file, we just want to emit a RELATIVE reloc.
6014 The entry in the global offset table will already have been
6015 initialized in the relocate_section function. */
6016 if (info->shared
6017 && (info->symbolic
6018 || h->dynindx == -1
6019 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
6020 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
6021 {
6022 rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
6023 rel.r_addend = (h->root.u.def.value
6024 + h->root.u.def.section->output_section->vma
6025 + h->root.u.def.section->output_offset);
6026 }
6027 else
6028 {
6029 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
6030 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
6031 rel.r_addend = 0;
6032 }
6033
6034 bfd_elf32_swap_reloca_out (output_bfd, &rel,
6035 ((Elf32_External_Rela *) srel->contents
6036 + srel->reloc_count));
6037 ++srel->reloc_count;
6038 }
6039
6040 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
6041 {
6042 asection *s;
6043 Elf_Internal_Rela rel;
6044
6045 /* This symbol needs a copy reloc. Set it up. */
6046
6047 BFD_ASSERT (h->dynindx != -1
6048 && (h->root.type == bfd_link_hash_defined
6049 || h->root.type == bfd_link_hash_defweak));
6050
6051 s = bfd_get_section_by_name (h->root.u.def.section->owner,
6052 ".rela.bss");
6053 BFD_ASSERT (s != NULL);
6054
6055 rel.r_offset = (h->root.u.def.value
6056 + h->root.u.def.section->output_section->vma
6057 + h->root.u.def.section->output_offset);
6058 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
6059 rel.r_addend = 0;
6060 bfd_elf32_swap_reloca_out (output_bfd, &rel,
6061 ((Elf32_External_Rela *) s->contents
6062 + s->reloc_count));
6063 ++s->reloc_count;
6064 }
6065
6066 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
6067 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
6068 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
6069 sym->st_shndx = SHN_ABS;
6070
6071 return true;
6072 }
6073
6074 /* Finish up the dynamic sections. */
6075
6076 static boolean
6077 sh_elf_finish_dynamic_sections (output_bfd, info)
6078 bfd *output_bfd;
6079 struct bfd_link_info *info;
6080 {
6081 struct elf_sh_link_hash_table *htab;
6082 bfd *dynobj;
6083 asection *sgot;
6084 asection *sdyn;
6085
6086 htab = sh_elf_hash_table (info);
6087 dynobj = htab->root.dynobj;
6088
6089 sgot = htab->sgotplt;
6090 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
6091
6092 if (htab->root.dynamic_sections_created)
6093 {
6094 asection *splt;
6095 Elf32_External_Dyn *dyncon, *dynconend;
6096
6097 BFD_ASSERT (sgot != NULL && sdyn != NULL);
6098
6099 dyncon = (Elf32_External_Dyn *) sdyn->contents;
6100 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
6101 for (; dyncon < dynconend; dyncon++)
6102 {
6103 Elf_Internal_Dyn dyn;
6104 asection *s;
6105 #ifdef INCLUDE_SHMEDIA
6106 const char *name;
6107 #endif
6108
6109 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
6110
6111 switch (dyn.d_tag)
6112 {
6113 default:
6114 break;
6115
6116 #ifdef INCLUDE_SHMEDIA
6117 case DT_INIT:
6118 name = info->init_function;
6119 goto get_sym;
6120
6121 case DT_FINI:
6122 name = info->fini_function;
6123 get_sym:
6124 if (dyn.d_un.d_val != 0)
6125 {
6126 struct elf_link_hash_entry *h;
6127
6128 h = elf_link_hash_lookup (&htab->root, name,
6129 false, false, true);
6130 if (h != NULL && (h->other & STO_SH5_ISA32))
6131 {
6132 dyn.d_un.d_val |= 1;
6133 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6134 }
6135 }
6136 break;
6137 #endif
6138
6139 case DT_PLTGOT:
6140 s = htab->sgot->output_section;
6141 goto get_vma;
6142
6143 case DT_JMPREL:
6144 s = htab->srelplt->output_section;
6145 get_vma:
6146 BFD_ASSERT (s != NULL);
6147 dyn.d_un.d_ptr = s->vma;
6148 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6149 break;
6150
6151 case DT_PLTRELSZ:
6152 s = htab->srelplt->output_section;
6153 BFD_ASSERT (s != NULL);
6154 if (s->_cooked_size != 0)
6155 dyn.d_un.d_val = s->_cooked_size;
6156 else
6157 dyn.d_un.d_val = s->_raw_size;
6158 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6159 break;
6160
6161 case DT_RELASZ:
6162 /* My reading of the SVR4 ABI indicates that the
6163 procedure linkage table relocs (DT_JMPREL) should be
6164 included in the overall relocs (DT_RELA). This is
6165 what Solaris does. However, UnixWare can not handle
6166 that case. Therefore, we override the DT_RELASZ entry
6167 here to make it not include the JMPREL relocs. Since
6168 the linker script arranges for .rela.plt to follow all
6169 other relocation sections, we don't have to worry
6170 about changing the DT_RELA entry. */
6171 if (htab->srelplt != NULL)
6172 {
6173 s = htab->srelplt->output_section;
6174 if (s->_cooked_size != 0)
6175 dyn.d_un.d_val -= s->_cooked_size;
6176 else
6177 dyn.d_un.d_val -= s->_raw_size;
6178 }
6179 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6180 break;
6181 }
6182 }
6183
6184 /* Fill in the first entry in the procedure linkage table. */
6185 splt = htab->splt;
6186 if (splt && splt->_raw_size > 0)
6187 {
6188 if (info->shared)
6189 {
6190 if (elf_sh_pic_plt_entry == NULL)
6191 {
6192 elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ?
6193 elf_sh_pic_plt_entry_be :
6194 elf_sh_pic_plt_entry_le);
6195 }
6196 memcpy (splt->contents, elf_sh_pic_plt_entry,
6197 elf_sh_sizeof_plt (info));
6198 }
6199 else
6200 {
6201 if (elf_sh_plt0_entry == NULL)
6202 {
6203 elf_sh_plt0_entry = (bfd_big_endian (output_bfd) ?
6204 elf_sh_plt0_entry_be :
6205 elf_sh_plt0_entry_le);
6206 }
6207 memcpy (splt->contents, elf_sh_plt0_entry, PLT_ENTRY_SIZE);
6208 #ifdef INCLUDE_SHMEDIA
6209 movi_shori_putval (output_bfd,
6210 sgot->output_section->vma
6211 + sgot->output_offset,
6212 splt->contents
6213 + elf_sh_plt0_gotplt_offset (info));
6214 #else
6215 bfd_put_32 (output_bfd,
6216 sgot->output_section->vma + sgot->output_offset + 4,
6217 splt->contents + elf_sh_plt0_gotid_offset (info));
6218 bfd_put_32 (output_bfd,
6219 sgot->output_section->vma + sgot->output_offset + 8,
6220 splt->contents + elf_sh_plt0_linker_offset (info));
6221 #endif
6222 }
6223
6224 /* UnixWare sets the entsize of .plt to 4, although that doesn't
6225 really seem like the right value. */
6226 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
6227 }
6228 }
6229
6230 /* Fill in the first three entries in the global offset table. */
6231 if (sgot && sgot->_raw_size > 0)
6232 {
6233 if (sdyn == NULL)
6234 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
6235 else
6236 bfd_put_32 (output_bfd,
6237 sdyn->output_section->vma + sdyn->output_offset,
6238 sgot->contents);
6239 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
6240 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
6241
6242 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
6243 }
6244
6245 return true;
6246 }
6247
6248 static enum elf_reloc_type_class
6249 sh_elf_reloc_type_class (rela)
6250 const Elf_Internal_Rela *rela;
6251 {
6252 switch ((int) ELF32_R_TYPE (rela->r_info))
6253 {
6254 case R_SH_RELATIVE:
6255 return reloc_class_relative;
6256 case R_SH_JMP_SLOT:
6257 return reloc_class_plt;
6258 case R_SH_COPY:
6259 return reloc_class_copy;
6260 default:
6261 return reloc_class_normal;
6262 }
6263 }
6264
6265 #ifndef ELF_ARCH
6266 #define TARGET_BIG_SYM bfd_elf32_sh_vec
6267 #define TARGET_BIG_NAME "elf32-sh"
6268 #define TARGET_LITTLE_SYM bfd_elf32_shl_vec
6269 #define TARGET_LITTLE_NAME "elf32-shl"
6270 #define ELF_ARCH bfd_arch_sh
6271 #define ELF_MACHINE_CODE EM_SH
6272 #define ELF_MAXPAGESIZE 128
6273
6274 #define elf_symbol_leading_char '_'
6275 #endif /* ELF_ARCH */
6276
6277 #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
6278 #define elf_info_to_howto sh_elf_info_to_howto
6279 #define bfd_elf32_bfd_relax_section sh_elf_relax_section
6280 #define elf_backend_relocate_section sh_elf_relocate_section
6281 #define bfd_elf32_bfd_get_relocated_section_contents \
6282 sh_elf_get_relocated_section_contents
6283 #define elf_backend_object_p sh_elf_set_mach_from_flags
6284 #define bfd_elf32_bfd_set_private_bfd_flags \
6285 sh_elf_set_private_flags
6286 #define bfd_elf32_bfd_copy_private_bfd_data \
6287 sh_elf_copy_private_data
6288 #define bfd_elf32_bfd_merge_private_bfd_data \
6289 sh_elf_merge_private_data
6290
6291 #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
6292 #define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook
6293 #define elf_backend_check_relocs sh_elf_check_relocs
6294 #define elf_backend_copy_indirect_symbol \
6295 sh_elf_copy_indirect_symbol
6296 #define elf_backend_create_dynamic_sections \
6297 sh_elf_create_dynamic_sections
6298 #define bfd_elf32_bfd_link_hash_table_create \
6299 sh_elf_link_hash_table_create
6300 #define elf_backend_adjust_dynamic_symbol \
6301 sh_elf_adjust_dynamic_symbol
6302 #define elf_backend_size_dynamic_sections \
6303 sh_elf_size_dynamic_sections
6304 #define elf_backend_finish_dynamic_symbol \
6305 sh_elf_finish_dynamic_symbol
6306 #define elf_backend_finish_dynamic_sections \
6307 sh_elf_finish_dynamic_sections
6308 #define elf_backend_reloc_type_class sh_elf_reloc_type_class
6309
6310 #define elf_backend_can_gc_sections 1
6311 #define elf_backend_can_refcount 1
6312 #define elf_backend_want_got_plt 1
6313 #define elf_backend_plt_readonly 1
6314 #define elf_backend_want_plt_sym 0
6315 #define elf_backend_got_header_size 12
6316 #define elf_backend_plt_header_size PLT_ENTRY_SIZE
6317
6318 #ifndef ELF32_SH_C_INCLUDED
6319 #include "elf32-target.h"
6320 #endif
6321
A mirror of the official binutils-gdb repository