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* symbols.c: Replace CONST by const throughout.
[binutils.git] / bfd / elf32-sh.c
blobe37d0d14d9af994ebde4989ad210a220908d4c0d
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 boolean sh_elf_check_relocs
60 PARAMS ((bfd *, struct bfd_link_info *, asection *,
61 const Elf_Internal_Rela *));
62 static struct bfd_hash_entry *sh_elf_link_hash_newfunc
63 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
64 static struct bfd_link_hash_table *sh_elf_link_hash_table_create
65 PARAMS ((bfd *));
66 static boolean sh_elf_adjust_dynamic_symbol
67 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
68 static boolean sh_elf_size_dynamic_sections
69 PARAMS ((bfd *, struct bfd_link_info *));
70 static boolean sh_elf_finish_dynamic_symbol
71 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
72 Elf_Internal_Sym *));
73 static boolean sh_elf_finish_dynamic_sections
74 PARAMS ((bfd *, struct bfd_link_info *));
75 static bfd_reloc_status_type sh_elf_reloc_loop
76 PARAMS ((int, bfd *, asection *, bfd_byte *, bfd_vma, asection *,
77 bfd_vma, bfd_vma));
78 static boolean sh_elf_create_dynamic_sections
79 PARAMS ((bfd *, struct bfd_link_info *));
80 static asection * sh_elf_gc_mark_hook
81 PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
82 struct elf_link_hash_entry *, Elf_Internal_Sym *));
83 static boolean sh_elf_gc_sweep_hook
84 PARAMS ((bfd *, struct bfd_link_info *, asection *,
85 const Elf_Internal_Rela *));
86 static enum elf_reloc_type_class sh_elf_reloc_type_class
87 PARAMS ((const Elf_Internal_Rela *));
88 #ifdef INCLUDE_SHMEDIA
89 inline static void movi_shori_putval PARAMS ((bfd *, unsigned long, char *));
90 #endif
91
92 /* The name of the dynamic interpreter. This is put in the .interp
93 section. */
94
95 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
96
97 static reloc_howto_type sh_elf_howto_table[] =
98 {
99 /* No relocation. */
100 HOWTO (R_SH_NONE, /* type */
101 0, /* rightshift */
102 0, /* size (0 = byte, 1 = short, 2 = long) */
103 0, /* bitsize */
104 false, /* pc_relative */
105 0, /* bitpos */
106 complain_overflow_dont, /* complain_on_overflow */
107 sh_elf_ignore_reloc, /* special_function */
108 "R_SH_NONE", /* name */
109 false, /* partial_inplace */
110 0, /* src_mask */
111 0, /* dst_mask */
112 false), /* pcrel_offset */
113
114 /* 32 bit absolute relocation. Setting partial_inplace to true and
115 src_mask to a non-zero value is similar to the COFF toolchain. */
116 HOWTO (R_SH_DIR32, /* type */
117 0, /* rightshift */
118 2, /* size (0 = byte, 1 = short, 2 = long) */
119 32, /* bitsize */
120 false, /* pc_relative */
121 0, /* bitpos */
122 complain_overflow_bitfield, /* complain_on_overflow */
123 sh_elf_reloc, /* special_function */
124 "R_SH_DIR32", /* name */
125 true, /* partial_inplace */
126 0xffffffff, /* src_mask */
127 0xffffffff, /* dst_mask */
128 false), /* pcrel_offset */
129
130 /* 32 bit PC relative relocation. */
131 HOWTO (R_SH_REL32, /* type */
132 0, /* rightshift */
133 2, /* size (0 = byte, 1 = short, 2 = long) */
134 32, /* bitsize */
135 true, /* pc_relative */
136 0, /* bitpos */
137 complain_overflow_signed, /* complain_on_overflow */
138 sh_elf_ignore_reloc, /* special_function */
139 "R_SH_REL32", /* name */
140 true, /* partial_inplace */
141 0xffffffff, /* src_mask */
142 0xffffffff, /* dst_mask */
143 true), /* pcrel_offset */
144
145 /* 8 bit PC relative branch divided by 2. */
146 HOWTO (R_SH_DIR8WPN, /* type */
147 1, /* rightshift */
148 1, /* size (0 = byte, 1 = short, 2 = long) */
149 8, /* bitsize */
150 true, /* pc_relative */
151 0, /* bitpos */
152 complain_overflow_signed, /* complain_on_overflow */
153 sh_elf_ignore_reloc, /* special_function */
154 "R_SH_DIR8WPN", /* name */
155 true, /* partial_inplace */
156 0xff, /* src_mask */
157 0xff, /* dst_mask */
158 true), /* pcrel_offset */
159
160 /* 12 bit PC relative branch divided by 2. */
161 HOWTO (R_SH_IND12W, /* type */
162 1, /* rightshift */
163 1, /* size (0 = byte, 1 = short, 2 = long) */
164 12, /* bitsize */
165 true, /* pc_relative */
166 0, /* bitpos */
167 complain_overflow_signed, /* complain_on_overflow */
168 sh_elf_reloc, /* special_function */
169 "R_SH_IND12W", /* name */
170 true, /* partial_inplace */
171 0xfff, /* src_mask */
172 0xfff, /* dst_mask */
173 true), /* pcrel_offset */
174
175 /* 8 bit unsigned PC relative divided by 4. */
176 HOWTO (R_SH_DIR8WPL, /* type */
177 2, /* rightshift */
178 1, /* size (0 = byte, 1 = short, 2 = long) */
179 8, /* bitsize */
180 true, /* pc_relative */
181 0, /* bitpos */
182 complain_overflow_unsigned, /* complain_on_overflow */
183 sh_elf_ignore_reloc, /* special_function */
184 "R_SH_DIR8WPL", /* name */
185 true, /* partial_inplace */
186 0xff, /* src_mask */
187 0xff, /* dst_mask */
188 true), /* pcrel_offset */
189
190 /* 8 bit unsigned PC relative divided by 2. */
191 HOWTO (R_SH_DIR8WPZ, /* type */
192 1, /* rightshift */
193 1, /* size (0 = byte, 1 = short, 2 = long) */
194 8, /* bitsize */
195 true, /* pc_relative */
196 0, /* bitpos */
197 complain_overflow_unsigned, /* complain_on_overflow */
198 sh_elf_ignore_reloc, /* special_function */
199 "R_SH_DIR8WPZ", /* name */
200 true, /* partial_inplace */
201 0xff, /* src_mask */
202 0xff, /* dst_mask */
203 true), /* pcrel_offset */
204
205 /* 8 bit GBR relative. FIXME: This only makes sense if we have some
206 special symbol for the GBR relative area, and that is not
207 implemented. */
208 HOWTO (R_SH_DIR8BP, /* type */
209 0, /* rightshift */
210 1, /* size (0 = byte, 1 = short, 2 = long) */
211 8, /* bitsize */
212 false, /* pc_relative */
213 0, /* bitpos */
214 complain_overflow_unsigned, /* complain_on_overflow */
215 sh_elf_ignore_reloc, /* special_function */
216 "R_SH_DIR8BP", /* name */
217 false, /* partial_inplace */
218 0, /* src_mask */
219 0xff, /* dst_mask */
220 true), /* pcrel_offset */
221
222 /* 8 bit GBR relative divided by 2. FIXME: This only makes sense if
223 we have some special symbol for the GBR relative area, and that
224 is not implemented. */
225 HOWTO (R_SH_DIR8W, /* type */
226 1, /* rightshift */
227 1, /* size (0 = byte, 1 = short, 2 = long) */
228 8, /* bitsize */
229 false, /* pc_relative */
230 0, /* bitpos */
231 complain_overflow_unsigned, /* complain_on_overflow */
232 sh_elf_ignore_reloc, /* special_function */
233 "R_SH_DIR8W", /* name */
234 false, /* partial_inplace */
235 0, /* src_mask */
236 0xff, /* dst_mask */
237 true), /* pcrel_offset */
238
239 /* 8 bit GBR relative divided by 4. FIXME: This only makes sense if
240 we have some special symbol for the GBR relative area, and that
241 is not implemented. */
242 HOWTO (R_SH_DIR8L, /* type */
243 2, /* rightshift */
244 1, /* size (0 = byte, 1 = short, 2 = long) */
245 8, /* bitsize */
246 false, /* pc_relative */
247 0, /* bitpos */
248 complain_overflow_unsigned, /* complain_on_overflow */
249 sh_elf_ignore_reloc, /* special_function */
250 "R_SH_DIR8L", /* name */
251 false, /* partial_inplace */
252 0, /* src_mask */
253 0xff, /* dst_mask */
254 true), /* pcrel_offset */
255
256 EMPTY_HOWTO (10),
257 EMPTY_HOWTO (11),
258 EMPTY_HOWTO (12),
259 EMPTY_HOWTO (13),
260 EMPTY_HOWTO (14),
261 EMPTY_HOWTO (15),
262 EMPTY_HOWTO (16),
263 EMPTY_HOWTO (17),
264 EMPTY_HOWTO (18),
265 EMPTY_HOWTO (19),
266 EMPTY_HOWTO (20),
267 EMPTY_HOWTO (21),
268 EMPTY_HOWTO (22),
269 EMPTY_HOWTO (23),
270 EMPTY_HOWTO (24),
271
272 /* The remaining relocs are a GNU extension used for relaxing. The
273 final pass of the linker never needs to do anything with any of
274 these relocs. Any required operations are handled by the
275 relaxation code. */
276
277 /* A 16 bit switch table entry. This is generated for an expression
278 such as ``.word L1 - L2''. The offset holds the difference
279 between the reloc address and L2. */
280 HOWTO (R_SH_SWITCH16, /* type */
281 0, /* rightshift */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
283 16, /* bitsize */
284 false, /* pc_relative */
285 0, /* bitpos */
286 complain_overflow_unsigned, /* complain_on_overflow */
287 sh_elf_ignore_reloc, /* special_function */
288 "R_SH_SWITCH16", /* name */
289 false, /* partial_inplace */
290 0, /* src_mask */
291 0, /* dst_mask */
292 true), /* pcrel_offset */
293
294 /* A 32 bit switch table entry. This is generated for an expression
295 such as ``.long L1 - L2''. The offset holds the difference
296 between the reloc address and L2. */
297 HOWTO (R_SH_SWITCH32, /* type */
298 0, /* rightshift */
299 2, /* size (0 = byte, 1 = short, 2 = long) */
300 32, /* bitsize */
301 false, /* pc_relative */
302 0, /* bitpos */
303 complain_overflow_unsigned, /* complain_on_overflow */
304 sh_elf_ignore_reloc, /* special_function */
305 "R_SH_SWITCH32", /* name */
306 false, /* partial_inplace */
307 0, /* src_mask */
308 0, /* dst_mask */
309 true), /* pcrel_offset */
310
311 /* Indicates a .uses pseudo-op. The compiler will generate .uses
312 pseudo-ops when it finds a function call which can be relaxed.
313 The offset field holds the PC relative offset to the instruction
314 which loads the register used in the function call. */
315 HOWTO (R_SH_USES, /* type */
316 0, /* rightshift */
317 1, /* size (0 = byte, 1 = short, 2 = long) */
318 0, /* bitsize */
319 false, /* pc_relative */
320 0, /* bitpos */
321 complain_overflow_unsigned, /* complain_on_overflow */
322 sh_elf_ignore_reloc, /* special_function */
323 "R_SH_USES", /* name */
324 false, /* partial_inplace */
325 0, /* src_mask */
326 0, /* dst_mask */
327 true), /* pcrel_offset */
328
329 /* The assembler will generate this reloc for addresses referred to
330 by the register loads associated with USES relocs. The offset
331 field holds the number of times the address is referenced in the
332 object file. */
333 HOWTO (R_SH_COUNT, /* type */
334 0, /* rightshift */
335 1, /* size (0 = byte, 1 = short, 2 = long) */
336 0, /* bitsize */
337 false, /* pc_relative */
338 0, /* bitpos */
339 complain_overflow_unsigned, /* complain_on_overflow */
340 sh_elf_ignore_reloc, /* special_function */
341 "R_SH_COUNT", /* name */
342 false, /* partial_inplace */
343 0, /* src_mask */
344 0, /* dst_mask */
345 true), /* pcrel_offset */
346
347 /* Indicates an alignment statement. The offset field is the power
348 of 2 to which subsequent portions of the object file must be
349 aligned. */
350 HOWTO (R_SH_ALIGN, /* type */
351 0, /* rightshift */
352 1, /* size (0 = byte, 1 = short, 2 = long) */
353 0, /* bitsize */
354 false, /* pc_relative */
355 0, /* bitpos */
356 complain_overflow_unsigned, /* complain_on_overflow */
357 sh_elf_ignore_reloc, /* special_function */
358 "R_SH_ALIGN", /* name */
359 false, /* partial_inplace */
360 0, /* src_mask */
361 0, /* dst_mask */
362 true), /* pcrel_offset */
363
364 /* The assembler will generate this reloc before a block of
365 instructions. A section should be processed as assumining it
366 contains data, unless this reloc is seen. */
367 HOWTO (R_SH_CODE, /* type */
368 0, /* rightshift */
369 1, /* size (0 = byte, 1 = short, 2 = long) */
370 0, /* bitsize */
371 false, /* pc_relative */
372 0, /* bitpos */
373 complain_overflow_unsigned, /* complain_on_overflow */
374 sh_elf_ignore_reloc, /* special_function */
375 "R_SH_CODE", /* name */
376 false, /* partial_inplace */
377 0, /* src_mask */
378 0, /* dst_mask */
379 true), /* pcrel_offset */
380
381 /* The assembler will generate this reloc after a block of
382 instructions when it sees data that is not instructions. */
383 HOWTO (R_SH_DATA, /* type */
384 0, /* rightshift */
385 1, /* size (0 = byte, 1 = short, 2 = long) */
386 0, /* bitsize */
387 false, /* pc_relative */
388 0, /* bitpos */
389 complain_overflow_unsigned, /* complain_on_overflow */
390 sh_elf_ignore_reloc, /* special_function */
391 "R_SH_DATA", /* name */
392 false, /* partial_inplace */
393 0, /* src_mask */
394 0, /* dst_mask */
395 true), /* pcrel_offset */
396
397 /* The assembler generates this reloc for each label within a block
398 of instructions. This permits the linker to avoid swapping
399 instructions which are the targets of branches. */
400 HOWTO (R_SH_LABEL, /* type */
401 0, /* rightshift */
402 1, /* size (0 = byte, 1 = short, 2 = long) */
403 0, /* bitsize */
404 false, /* pc_relative */
405 0, /* bitpos */
406 complain_overflow_unsigned, /* complain_on_overflow */
407 sh_elf_ignore_reloc, /* special_function */
408 "R_SH_LABEL", /* name */
409 false, /* partial_inplace */
410 0, /* src_mask */
411 0, /* dst_mask */
412 true), /* pcrel_offset */
413
414 /* An 8 bit switch table entry. This is generated for an expression
415 such as ``.word L1 - L2''. The offset holds the difference
416 between the reloc address and L2. */
417 HOWTO (R_SH_SWITCH8, /* type */
418 0, /* rightshift */
419 0, /* size (0 = byte, 1 = short, 2 = long) */
420 8, /* bitsize */
421 false, /* pc_relative */
422 0, /* bitpos */
423 complain_overflow_unsigned, /* complain_on_overflow */
424 sh_elf_ignore_reloc, /* special_function */
425 "R_SH_SWITCH8", /* name */
426 false, /* partial_inplace */
427 0, /* src_mask */
428 0, /* dst_mask */
429 true), /* pcrel_offset */
430
431 /* GNU extension to record C++ vtable hierarchy */
432 HOWTO (R_SH_GNU_VTINHERIT, /* type */
433 0, /* rightshift */
434 2, /* size (0 = byte, 1 = short, 2 = long) */
435 0, /* bitsize */
436 false, /* pc_relative */
437 0, /* bitpos */
438 complain_overflow_dont, /* complain_on_overflow */
439 NULL, /* special_function */
440 "R_SH_GNU_VTINHERIT", /* name */
441 false, /* partial_inplace */
442 0, /* src_mask */
443 0, /* dst_mask */
444 false), /* pcrel_offset */
445
446 /* GNU extension to record C++ vtable member usage */
447 HOWTO (R_SH_GNU_VTENTRY, /* type */
448 0, /* rightshift */
449 2, /* size (0 = byte, 1 = short, 2 = long) */
450 0, /* bitsize */
451 false, /* pc_relative */
452 0, /* bitpos */
453 complain_overflow_dont, /* complain_on_overflow */
454 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
455 "R_SH_GNU_VTENTRY", /* name */
456 false, /* partial_inplace */
457 0, /* src_mask */
458 0, /* dst_mask */
459 false), /* pcrel_offset */
460
461 /* 8 bit PC relative divided by 2 - but specified in a very odd way. */
462 HOWTO (R_SH_LOOP_START, /* type */
463 1, /* rightshift */
464 1, /* size (0 = byte, 1 = short, 2 = long) */
465 8, /* bitsize */
466 false, /* pc_relative */
467 0, /* bitpos */
468 complain_overflow_signed, /* complain_on_overflow */
469 sh_elf_ignore_reloc, /* special_function */
470 "R_SH_LOOP_START", /* name */
471 true, /* partial_inplace */
472 0xff, /* src_mask */
473 0xff, /* dst_mask */
474 true), /* pcrel_offset */
475
476 /* 8 bit PC relative divided by 2 - but specified in a very odd way. */
477 HOWTO (R_SH_LOOP_END, /* type */
478 1, /* rightshift */
479 1, /* size (0 = byte, 1 = short, 2 = long) */
480 8, /* bitsize */
481 false, /* pc_relative */
482 0, /* bitpos */
483 complain_overflow_signed, /* complain_on_overflow */
484 sh_elf_ignore_reloc, /* special_function */
485 "R_SH_LOOP_END", /* name */
486 true, /* partial_inplace */
487 0xff, /* src_mask */
488 0xff, /* dst_mask */
489 true), /* pcrel_offset */
490
491 EMPTY_HOWTO (38),
492 EMPTY_HOWTO (39),
493 EMPTY_HOWTO (40),
494 EMPTY_HOWTO (41),
495 EMPTY_HOWTO (42),
496 EMPTY_HOWTO (43),
497 EMPTY_HOWTO (44),
498
499 #ifdef INCLUDE_SHMEDIA
500 /* Used in SHLLI.L and SHLRI.L. */
501 HOWTO (R_SH_DIR5U, /* type */
502 0, /* rightshift */
503 2, /* size (0 = byte, 1 = short, 2 = long) */
504 5, /* bitsize */
505 false, /* pc_relative */
506 10, /* bitpos */
507 complain_overflow_unsigned, /* complain_on_overflow */
508 bfd_elf_generic_reloc, /* special_function */
509 "R_SH_DIR5U", /* name */
510 false, /* partial_inplace */
511 0, /* src_mask */
512 0xfc00, /* dst_mask */
513 false), /* pcrel_offset */
514
515 /* Used in SHARI, SHLLI et al. */
516 HOWTO (R_SH_DIR6U, /* type */
517 0, /* rightshift */
518 2, /* size (0 = byte, 1 = short, 2 = long) */
519 6, /* bitsize */
520 false, /* pc_relative */
521 10, /* bitpos */
522 complain_overflow_unsigned, /* complain_on_overflow */
523 bfd_elf_generic_reloc, /* special_function */
524 "R_SH_DIR6U", /* name */
525 false, /* partial_inplace */
526 0, /* src_mask */
527 0xfc00, /* dst_mask */
528 false), /* pcrel_offset */
529
530 /* Used in BxxI, LDHI.L et al. */
531 HOWTO (R_SH_DIR6S, /* type */
532 0, /* rightshift */
533 2, /* size (0 = byte, 1 = short, 2 = long) */
534 6, /* bitsize */
535 false, /* pc_relative */
536 10, /* bitpos */
537 complain_overflow_signed, /* complain_on_overflow */
538 bfd_elf_generic_reloc, /* special_function */
539 "R_SH_DIR6S", /* name */
540 false, /* partial_inplace */
541 0, /* src_mask */
542 0xfc00, /* dst_mask */
543 false), /* pcrel_offset */
544
545 /* Used in ADDI, ANDI et al. */
546 HOWTO (R_SH_DIR10S, /* type */
547 0, /* rightshift */
548 2, /* size (0 = byte, 1 = short, 2 = long) */
549 10, /* bitsize */
550 false, /* pc_relative */
551 10, /* bitpos */
552 complain_overflow_signed, /* complain_on_overflow */
553 bfd_elf_generic_reloc, /* special_function */
554 "R_SH_DIR10S", /* name */
555 false, /* partial_inplace */
556 0, /* src_mask */
557 0xffc00, /* dst_mask */
558 false), /* pcrel_offset */
559
560 /* Used in LD.UW, ST.W et al. */
561 HOWTO (R_SH_DIR10SW, /* type */
562 1, /* rightshift */
563 2, /* size (0 = byte, 1 = short, 2 = long) */
564 11, /* bitsize */
565 false, /* pc_relative */
566 10, /* bitpos */
567 complain_overflow_signed, /* complain_on_overflow */
568 bfd_elf_generic_reloc, /* special_function */
569 "R_SH_DIR10SW", /* name */
570 false, /* partial_inplace */
571 0, /* src_mask */
572 0xffc00, /* dst_mask */
573 false), /* pcrel_offset */
574
575 /* Used in LD.L, FLD.S et al. */
576 HOWTO (R_SH_DIR10SL, /* type */
577 2, /* rightshift */
578 2, /* size (0 = byte, 1 = short, 2 = long) */
579 12, /* bitsize */
580 false, /* pc_relative */
581 10, /* bitpos */
582 complain_overflow_signed, /* complain_on_overflow */
583 bfd_elf_generic_reloc, /* special_function */
584 "R_SH_DIR10SL", /* name */
585 false, /* partial_inplace */
586 0, /* src_mask */
587 0xffc00, /* dst_mask */
588 false), /* pcrel_offset */
589
590 /* Used in FLD.D, FST.P et al. */
591 HOWTO (R_SH_DIR10SQ, /* type */
592 3, /* rightshift */
593 2, /* size (0 = byte, 1 = short, 2 = long) */
594 13, /* bitsize */
595 false, /* pc_relative */
596 10, /* bitpos */
597 complain_overflow_signed, /* complain_on_overflow */
598 bfd_elf_generic_reloc, /* special_function */
599 "R_SH_DIR10SQ", /* name */
600 false, /* partial_inplace */
601 0, /* src_mask */
602 0xffc00, /* dst_mask */
603 false), /* pcrel_offset */
604
605 #else
606 EMPTY_HOWTO (45),
607 EMPTY_HOWTO (46),
608 EMPTY_HOWTO (47),
609 EMPTY_HOWTO (48),
610 EMPTY_HOWTO (49),
611 EMPTY_HOWTO (50),
612 EMPTY_HOWTO (51),
613 #endif
614
615 EMPTY_HOWTO (52),
616 EMPTY_HOWTO (53),
617 EMPTY_HOWTO (54),
618 EMPTY_HOWTO (55),
619 EMPTY_HOWTO (56),
620 EMPTY_HOWTO (57),
621 EMPTY_HOWTO (58),
622 EMPTY_HOWTO (59),
623 EMPTY_HOWTO (60),
624 EMPTY_HOWTO (61),
625 EMPTY_HOWTO (62),
626 EMPTY_HOWTO (63),
627 EMPTY_HOWTO (64),
628 EMPTY_HOWTO (65),
629 EMPTY_HOWTO (66),
630 EMPTY_HOWTO (67),
631 EMPTY_HOWTO (68),
632 EMPTY_HOWTO (69),
633 EMPTY_HOWTO (70),
634 EMPTY_HOWTO (71),
635 EMPTY_HOWTO (72),
636 EMPTY_HOWTO (73),
637 EMPTY_HOWTO (74),
638 EMPTY_HOWTO (75),
639 EMPTY_HOWTO (76),
640 EMPTY_HOWTO (77),
641 EMPTY_HOWTO (78),
642 EMPTY_HOWTO (79),
643 EMPTY_HOWTO (80),
644 EMPTY_HOWTO (81),
645 EMPTY_HOWTO (82),
646 EMPTY_HOWTO (83),
647 EMPTY_HOWTO (84),
648 EMPTY_HOWTO (85),
649 EMPTY_HOWTO (86),
650 EMPTY_HOWTO (87),
651 EMPTY_HOWTO (88),
652 EMPTY_HOWTO (89),
653 EMPTY_HOWTO (90),
654 EMPTY_HOWTO (91),
655 EMPTY_HOWTO (92),
656 EMPTY_HOWTO (93),
657 EMPTY_HOWTO (94),
658 EMPTY_HOWTO (95),
659 EMPTY_HOWTO (96),
660 EMPTY_HOWTO (97),
661 EMPTY_HOWTO (98),
662 EMPTY_HOWTO (99),
663 EMPTY_HOWTO (100),
664 EMPTY_HOWTO (101),
665 EMPTY_HOWTO (102),
666 EMPTY_HOWTO (103),
667 EMPTY_HOWTO (104),
668 EMPTY_HOWTO (105),
669 EMPTY_HOWTO (106),
670 EMPTY_HOWTO (107),
671 EMPTY_HOWTO (108),
672 EMPTY_HOWTO (109),
673 EMPTY_HOWTO (110),
674 EMPTY_HOWTO (111),
675 EMPTY_HOWTO (112),
676 EMPTY_HOWTO (113),
677 EMPTY_HOWTO (114),
678 EMPTY_HOWTO (115),
679 EMPTY_HOWTO (116),
680 EMPTY_HOWTO (117),
681 EMPTY_HOWTO (118),
682 EMPTY_HOWTO (119),
683 EMPTY_HOWTO (120),
684 EMPTY_HOWTO (121),
685 EMPTY_HOWTO (122),
686 EMPTY_HOWTO (123),
687 EMPTY_HOWTO (124),
688 EMPTY_HOWTO (125),
689 EMPTY_HOWTO (126),
690 EMPTY_HOWTO (127),
691 EMPTY_HOWTO (128),
692 EMPTY_HOWTO (129),
693 EMPTY_HOWTO (130),
694 EMPTY_HOWTO (131),
695 EMPTY_HOWTO (132),
696 EMPTY_HOWTO (133),
697 EMPTY_HOWTO (134),
698 EMPTY_HOWTO (135),
699 EMPTY_HOWTO (136),
700 EMPTY_HOWTO (137),
701 EMPTY_HOWTO (138),
702 EMPTY_HOWTO (139),
703 EMPTY_HOWTO (140),
704 EMPTY_HOWTO (141),
705 EMPTY_HOWTO (142),
706 EMPTY_HOWTO (143),
707 EMPTY_HOWTO (144),
708 EMPTY_HOWTO (145),
709 EMPTY_HOWTO (146),
710 EMPTY_HOWTO (147),
711 EMPTY_HOWTO (148),
712 EMPTY_HOWTO (149),
713 EMPTY_HOWTO (150),
714 EMPTY_HOWTO (151),
715 EMPTY_HOWTO (152),
716 EMPTY_HOWTO (153),
717 EMPTY_HOWTO (154),
718 EMPTY_HOWTO (155),
719 EMPTY_HOWTO (156),
720 EMPTY_HOWTO (157),
721 EMPTY_HOWTO (158),
722 EMPTY_HOWTO (159),
723
724 HOWTO (R_SH_GOT32, /* type */
725 0, /* rightshift */
726 2, /* size (0 = byte, 1 = short, 2 = long) */
727 32, /* bitsize */
728 false, /* pc_relative */
729 0, /* bitpos */
730 complain_overflow_bitfield, /* complain_on_overflow */
731 bfd_elf_generic_reloc, /* */
732 "R_SH_GOT32", /* name */
733 true, /* partial_inplace */
734 0xffffffff, /* src_mask */
735 0xffffffff, /* dst_mask */
736 false), /* pcrel_offset */
737
738 HOWTO (R_SH_PLT32, /* type */
739 0, /* rightshift */
740 2, /* size (0 = byte, 1 = short, 2 = long) */
741 32, /* bitsize */
742 true, /* pc_relative */
743 0, /* bitpos */
744 complain_overflow_bitfield, /* complain_on_overflow */
745 bfd_elf_generic_reloc, /* */
746 "R_SH_PLT32", /* name */
747 true, /* partial_inplace */
748 0xffffffff, /* src_mask */
749 0xffffffff, /* dst_mask */
750 true), /* pcrel_offset */
751
752 HOWTO (R_SH_COPY, /* type */
753 0, /* rightshift */
754 2, /* size (0 = byte, 1 = short, 2 = long) */
755 32, /* bitsize */
756 false, /* pc_relative */
757 0, /* bitpos */
758 complain_overflow_bitfield, /* complain_on_overflow */
759 bfd_elf_generic_reloc, /* */
760 "R_SH_COPY", /* name */
761 true, /* partial_inplace */
762 0xffffffff, /* src_mask */
763 0xffffffff, /* dst_mask */
764 false), /* pcrel_offset */
765
766 HOWTO (R_SH_GLOB_DAT, /* type */
767 0, /* rightshift */
768 2, /* size (0 = byte, 1 = short, 2 = long) */
769 32, /* bitsize */
770 false, /* pc_relative */
771 0, /* bitpos */
772 complain_overflow_bitfield, /* complain_on_overflow */
773 bfd_elf_generic_reloc, /* */
774 "R_SH_GLOB_DAT", /* name */
775 true, /* partial_inplace */
776 0xffffffff, /* src_mask */
777 0xffffffff, /* dst_mask */
778 false), /* pcrel_offset */
779
780 HOWTO (R_SH_JMP_SLOT, /* type */
781 0, /* rightshift */
782 2, /* size (0 = byte, 1 = short, 2 = long) */
783 32, /* bitsize */
784 false, /* pc_relative */
785 0, /* bitpos */
786 complain_overflow_bitfield, /* complain_on_overflow */
787 bfd_elf_generic_reloc, /* */
788 "R_SH_JMP_SLOT", /* name */
789 true, /* partial_inplace */
790 0xffffffff, /* src_mask */
791 0xffffffff, /* dst_mask */
792 false), /* pcrel_offset */
793
794 HOWTO (R_SH_RELATIVE, /* type */
795 0, /* rightshift */
796 2, /* size (0 = byte, 1 = short, 2 = long) */
797 32, /* bitsize */
798 false, /* pc_relative */
799 0, /* bitpos */
800 complain_overflow_bitfield, /* complain_on_overflow */
801 bfd_elf_generic_reloc, /* */
802 "R_SH_RELATIVE", /* name */
803 true, /* partial_inplace */
804 0xffffffff, /* src_mask */
805 0xffffffff, /* dst_mask */
806 false), /* pcrel_offset */
807
808 HOWTO (R_SH_GOTOFF, /* type */
809 0, /* rightshift */
810 2, /* size (0 = byte, 1 = short, 2 = long) */
811 32, /* bitsize */
812 false, /* pc_relative */
813 0, /* bitpos */
814 complain_overflow_bitfield, /* complain_on_overflow */
815 bfd_elf_generic_reloc, /* */
816 "R_SH_GOTOFF", /* name */
817 true, /* partial_inplace */
818 0xffffffff, /* src_mask */
819 0xffffffff, /* dst_mask */
820 false), /* pcrel_offset */
821
822 HOWTO (R_SH_GOTPC, /* type */
823 0, /* rightshift */
824 2, /* size (0 = byte, 1 = short, 2 = long) */
825 32, /* bitsize */
826 true, /* pc_relative */
827 0, /* bitpos */
828 complain_overflow_bitfield, /* complain_on_overflow */
829 bfd_elf_generic_reloc, /* */
830 "R_SH_GOTPC", /* name */
831 true, /* partial_inplace */
832 0xffffffff, /* src_mask */
833 0xffffffff, /* dst_mask */
834 true), /* pcrel_offset */
835
836 HOWTO (R_SH_GOTPLT32, /* type */
837 0, /* rightshift */
838 2, /* size (0 = byte, 1 = short, 2 = long) */
839 32, /* bitsize */
840 false, /* pc_relative */
841 0, /* bitpos */
842 complain_overflow_bitfield, /* complain_on_overflow */
843 bfd_elf_generic_reloc, /* */
844 "R_SH_GOTPLT32", /* name */
845 false, /* partial_inplace */
846 0xffffffff, /* src_mask */
847 0xffffffff, /* dst_mask */
848 false), /* pcrel_offset */
849
850 #ifdef INCLUDE_SHMEDIA
851 /* Used in MOVI and SHORI (x & 65536). */
852 HOWTO (R_SH_GOT_LOW16, /* type */
853 0, /* rightshift */
854 2, /* size (0 = byte, 1 = short, 2 = long) */
855 64, /* bitsize */
856 false, /* pc_relative */
857 10, /* bitpos */
858 complain_overflow_dont, /* complain_on_overflow */
859 bfd_elf_generic_reloc, /* special_function */
860 "R_SH_GOT_LOW16", /* name */
861 false, /* partial_inplace */
862 0, /* src_mask */
863 0x3fffc00, /* dst_mask */
864 false), /* pcrel_offset */
865
866 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
867 HOWTO (R_SH_GOT_MEDLOW16, /* type */
868 16, /* rightshift */
869 2, /* size (0 = byte, 1 = short, 2 = long) */
870 64, /* bitsize */
871 false, /* pc_relative */
872 10, /* bitpos */
873 complain_overflow_dont, /* complain_on_overflow */
874 bfd_elf_generic_reloc, /* special_function */
875 "R_SH_GOT_MEDLOW16", /* name */
876 false, /* partial_inplace */
877 0, /* src_mask */
878 0x3fffc00, /* dst_mask */
879 false), /* pcrel_offset */
880
881 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
882 HOWTO (R_SH_GOT_MEDHI16, /* type */
883 32, /* rightshift */
884 2, /* size (0 = byte, 1 = short, 2 = long) */
885 64, /* bitsize */
886 false, /* pc_relative */
887 10, /* bitpos */
888 complain_overflow_dont, /* complain_on_overflow */
889 bfd_elf_generic_reloc, /* special_function */
890 "R_SH_GOT_MEDHI16", /* name */
891 false, /* partial_inplace */
892 0, /* src_mask */
893 0x3fffc00, /* dst_mask */
894 false), /* pcrel_offset */
895
896 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
897 HOWTO (R_SH_GOT_HI16, /* type */
898 48, /* rightshift */
899 2, /* size (0 = byte, 1 = short, 2 = long) */
900 64, /* bitsize */
901 false, /* pc_relative */
902 10, /* bitpos */
903 complain_overflow_dont, /* complain_on_overflow */
904 bfd_elf_generic_reloc, /* special_function */
905 "R_SH_GOT_HI16", /* name */
906 false, /* partial_inplace */
907 0, /* src_mask */
908 0x3fffc00, /* dst_mask */
909 false), /* pcrel_offset */
910
911 /* Used in MOVI and SHORI (x & 65536). */
912 HOWTO (R_SH_GOTPLT_LOW16, /* type */
913 0, /* rightshift */
914 2, /* size (0 = byte, 1 = short, 2 = long) */
915 64, /* bitsize */
916 false, /* pc_relative */
917 10, /* bitpos */
918 complain_overflow_dont, /* complain_on_overflow */
919 bfd_elf_generic_reloc, /* special_function */
920 "R_SH_GOTPLT_LOW16", /* name */
921 false, /* partial_inplace */
922 0, /* src_mask */
923 0x3fffc00, /* dst_mask */
924 false), /* pcrel_offset */
925
926 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
927 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */
928 16, /* rightshift */
929 2, /* size (0 = byte, 1 = short, 2 = long) */
930 64, /* bitsize */
931 false, /* pc_relative */
932 10, /* bitpos */
933 complain_overflow_dont, /* complain_on_overflow */
934 bfd_elf_generic_reloc, /* special_function */
935 "R_SH_GOTPLT_MEDLOW16", /* name */
936 false, /* partial_inplace */
937 0, /* src_mask */
938 0x3fffc00, /* dst_mask */
939 false), /* pcrel_offset */
940
941 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
942 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */
943 32, /* rightshift */
944 2, /* size (0 = byte, 1 = short, 2 = long) */
945 64, /* bitsize */
946 false, /* pc_relative */
947 10, /* bitpos */
948 complain_overflow_dont, /* complain_on_overflow */
949 bfd_elf_generic_reloc, /* special_function */
950 "R_SH_GOTPLT_MEDHI16", /* name */
951 false, /* partial_inplace */
952 0, /* src_mask */
953 0x3fffc00, /* dst_mask */
954 false), /* pcrel_offset */
955
956 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
957 HOWTO (R_SH_GOTPLT_HI16, /* type */
958 48, /* rightshift */
959 2, /* size (0 = byte, 1 = short, 2 = long) */
960 64, /* bitsize */
961 false, /* pc_relative */
962 10, /* bitpos */
963 complain_overflow_dont, /* complain_on_overflow */
964 bfd_elf_generic_reloc, /* special_function */
965 "R_SH_GOTPLT_HI16", /* name */
966 false, /* partial_inplace */
967 0, /* src_mask */
968 0x3fffc00, /* dst_mask */
969 false), /* pcrel_offset */
970
971 /* Used in MOVI and SHORI (x & 65536). */
972 HOWTO (R_SH_PLT_LOW16, /* type */
973 0, /* rightshift */
974 2, /* size (0 = byte, 1 = short, 2 = long) */
975 64, /* bitsize */
976 true, /* pc_relative */
977 10, /* bitpos */
978 complain_overflow_dont, /* complain_on_overflow */
979 bfd_elf_generic_reloc, /* special_function */
980 "R_SH_PLT_LOW16", /* name */
981 false, /* partial_inplace */
982 0, /* src_mask */
983 0x3fffc00, /* dst_mask */
984 true), /* pcrel_offset */
985
986 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
987 HOWTO (R_SH_PLT_MEDLOW16, /* type */
988 16, /* rightshift */
989 2, /* size (0 = byte, 1 = short, 2 = long) */
990 64, /* bitsize */
991 true, /* pc_relative */
992 10, /* bitpos */
993 complain_overflow_dont, /* complain_on_overflow */
994 bfd_elf_generic_reloc, /* special_function */
995 "R_SH_PLT_MEDLOW16", /* name */
996 false, /* partial_inplace */
997 0, /* src_mask */
998 0x3fffc00, /* dst_mask */
999 true), /* pcrel_offset */
1000
1001 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1002 HOWTO (R_SH_PLT_MEDHI16, /* type */
1003 32, /* rightshift */
1004 2, /* size (0 = byte, 1 = short, 2 = long) */
1005 64, /* bitsize */
1006 true, /* pc_relative */
1007 10, /* bitpos */
1008 complain_overflow_dont, /* complain_on_overflow */
1009 bfd_elf_generic_reloc, /* special_function */
1010 "R_SH_PLT_MEDHI16", /* name */
1011 false, /* partial_inplace */
1012 0, /* src_mask */
1013 0x3fffc00, /* dst_mask */
1014 true), /* pcrel_offset */
1015
1016 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1017 HOWTO (R_SH_PLT_HI16, /* type */
1018 48, /* rightshift */
1019 2, /* size (0 = byte, 1 = short, 2 = long) */
1020 64, /* bitsize */
1021 true, /* pc_relative */
1022 10, /* bitpos */
1023 complain_overflow_dont, /* complain_on_overflow */
1024 bfd_elf_generic_reloc, /* special_function */
1025 "R_SH_PLT_HI16", /* name */
1026 false, /* partial_inplace */
1027 0, /* src_mask */
1028 0x3fffc00, /* dst_mask */
1029 true), /* pcrel_offset */
1030
1031 /* Used in MOVI and SHORI (x & 65536). */
1032 HOWTO (R_SH_GOTOFF_LOW16, /* type */
1033 0, /* rightshift */
1034 2, /* size (0 = byte, 1 = short, 2 = long) */
1035 64, /* bitsize */
1036 false, /* pc_relative */
1037 10, /* bitpos */
1038 complain_overflow_dont, /* complain_on_overflow */
1039 bfd_elf_generic_reloc, /* special_function */
1040 "R_SH_GOTOFF_LOW16", /* name */
1041 false, /* partial_inplace */
1042 0, /* src_mask */
1043 0x3fffc00, /* dst_mask */
1044 false), /* pcrel_offset */
1045
1046 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1047 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */
1048 16, /* rightshift */
1049 2, /* size (0 = byte, 1 = short, 2 = long) */
1050 64, /* bitsize */
1051 false, /* pc_relative */
1052 10, /* bitpos */
1053 complain_overflow_dont, /* complain_on_overflow */
1054 bfd_elf_generic_reloc, /* special_function */
1055 "R_SH_GOTOFF_MEDLOW16", /* name */
1056 false, /* partial_inplace */
1057 0, /* src_mask */
1058 0x3fffc00, /* dst_mask */
1059 false), /* pcrel_offset */
1060
1061 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1062 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */
1063 32, /* rightshift */
1064 2, /* size (0 = byte, 1 = short, 2 = long) */
1065 64, /* bitsize */
1066 false, /* pc_relative */
1067 10, /* bitpos */
1068 complain_overflow_dont, /* complain_on_overflow */
1069 bfd_elf_generic_reloc, /* special_function */
1070 "R_SH_GOTOFF_MEDHI16", /* name */
1071 false, /* partial_inplace */
1072 0, /* src_mask */
1073 0x3fffc00, /* dst_mask */
1074 false), /* pcrel_offset */
1075
1076 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1077 HOWTO (R_SH_GOTOFF_HI16, /* type */
1078 48, /* rightshift */
1079 2, /* size (0 = byte, 1 = short, 2 = long) */
1080 64, /* bitsize */
1081 false, /* pc_relative */
1082 10, /* bitpos */
1083 complain_overflow_dont, /* complain_on_overflow */
1084 bfd_elf_generic_reloc, /* special_function */
1085 "R_SH_GOTOFF_HI16", /* name */
1086 false, /* partial_inplace */
1087 0, /* src_mask */
1088 0x3fffc00, /* dst_mask */
1089 false), /* pcrel_offset */
1090
1091 /* Used in MOVI and SHORI (x & 65536). */
1092 HOWTO (R_SH_GOTPC_LOW16, /* type */
1093 0, /* rightshift */
1094 2, /* size (0 = byte, 1 = short, 2 = long) */
1095 64, /* bitsize */
1096 true, /* pc_relative */
1097 10, /* bitpos */
1098 complain_overflow_dont, /* complain_on_overflow */
1099 bfd_elf_generic_reloc, /* special_function */
1100 "R_SH_GOTPC_LOW16", /* name */
1101 false, /* partial_inplace */
1102 0, /* src_mask */
1103 0x3fffc00, /* dst_mask */
1104 true), /* pcrel_offset */
1105
1106 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1107 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */
1108 16, /* rightshift */
1109 2, /* size (0 = byte, 1 = short, 2 = long) */
1110 64, /* bitsize */
1111 true, /* pc_relative */
1112 10, /* bitpos */
1113 complain_overflow_dont, /* complain_on_overflow */
1114 bfd_elf_generic_reloc, /* special_function */
1115 "R_SH_GOTPC_MEDLOW16", /* name */
1116 false, /* partial_inplace */
1117 0, /* src_mask */
1118 0x3fffc00, /* dst_mask */
1119 true), /* pcrel_offset */
1120
1121 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1122 HOWTO (R_SH_GOTPC_MEDHI16, /* type */
1123 32, /* rightshift */
1124 2, /* size (0 = byte, 1 = short, 2 = long) */
1125 64, /* bitsize */
1126 true, /* pc_relative */
1127 10, /* bitpos */
1128 complain_overflow_dont, /* complain_on_overflow */
1129 bfd_elf_generic_reloc, /* special_function */
1130 "R_SH_GOTPC_MEDHI16", /* name */
1131 false, /* partial_inplace */
1132 0, /* src_mask */
1133 0x3fffc00, /* dst_mask */
1134 true), /* pcrel_offset */
1135
1136 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1137 HOWTO (R_SH_GOTPC_HI16, /* type */
1138 48, /* rightshift */
1139 2, /* size (0 = byte, 1 = short, 2 = long) */
1140 64, /* bitsize */
1141 true, /* pc_relative */
1142 10, /* bitpos */
1143 complain_overflow_dont, /* complain_on_overflow */
1144 bfd_elf_generic_reloc, /* special_function */
1145 "R_SH_GOTPC_HI16", /* name */
1146 false, /* partial_inplace */
1147 0, /* src_mask */
1148 0x3fffc00, /* dst_mask */
1149 true), /* pcrel_offset */
1150
1151 /* Used in LD.L, FLD.S et al. */
1152 HOWTO (R_SH_GOT10BY4, /* type */
1153 2, /* rightshift */
1154 2, /* size (0 = byte, 1 = short, 2 = long) */
1155 12, /* bitsize */
1156 false, /* pc_relative */
1157 10, /* bitpos */
1158 complain_overflow_signed, /* complain_on_overflow */
1159 bfd_elf_generic_reloc, /* special_function */
1160 "R_SH_GOT10BY4", /* name */
1161 false, /* partial_inplace */
1162 0, /* src_mask */
1163 0xffc00, /* dst_mask */
1164 false), /* pcrel_offset */
1165
1166 /* Used in LD.L, FLD.S et al. */
1167 HOWTO (R_SH_GOTPLT10BY4, /* type */
1168 2, /* rightshift */
1169 2, /* size (0 = byte, 1 = short, 2 = long) */
1170 12, /* bitsize */
1171 false, /* pc_relative */
1172 10, /* bitpos */
1173 complain_overflow_signed, /* complain_on_overflow */
1174 bfd_elf_generic_reloc, /* special_function */
1175 "R_SH_GOTPLT10BY4", /* name */
1176 false, /* partial_inplace */
1177 0, /* src_mask */
1178 0xffc00, /* dst_mask */
1179 false), /* pcrel_offset */
1180
1181 /* Used in FLD.D, FST.P et al. */
1182 HOWTO (R_SH_GOT10BY8, /* type */
1183 3, /* rightshift */
1184 2, /* size (0 = byte, 1 = short, 2 = long) */
1185 13, /* bitsize */
1186 false, /* pc_relative */
1187 10, /* bitpos */
1188 complain_overflow_signed, /* complain_on_overflow */
1189 bfd_elf_generic_reloc, /* special_function */
1190 "R_SH_GOT10BY8", /* name */
1191 false, /* partial_inplace */
1192 0, /* src_mask */
1193 0xffc00, /* dst_mask */
1194 false), /* pcrel_offset */
1195
1196 /* Used in FLD.D, FST.P et al. */
1197 HOWTO (R_SH_GOTPLT10BY8, /* type */
1198 3, /* rightshift */
1199 2, /* size (0 = byte, 1 = short, 2 = long) */
1200 13, /* bitsize */
1201 false, /* pc_relative */
1202 10, /* bitpos */
1203 complain_overflow_signed, /* complain_on_overflow */
1204 bfd_elf_generic_reloc, /* special_function */
1205 "R_SH_GOTPLT10BY8", /* name */
1206 false, /* partial_inplace */
1207 0, /* src_mask */
1208 0xffc00, /* dst_mask */
1209 false), /* pcrel_offset */
1210
1211 HOWTO (R_SH_COPY64, /* type */
1212 0, /* rightshift */
1213 4, /* size (0 = byte, 1 = short, 2 = long) */
1214 64, /* bitsize */
1215 false, /* pc_relative */
1216 0, /* bitpos */
1217 complain_overflow_dont, /* complain_on_overflow */
1218 bfd_elf_generic_reloc, /* special_function */
1219 "R_SH_COPY64", /* name */
1220 false, /* partial_inplace */
1221 0, /* src_mask */
1222 ((bfd_vma) 0) - 1, /* dst_mask */
1223 false), /* pcrel_offset */
1224
1225 HOWTO (R_SH_GLOB_DAT64, /* type */
1226 0, /* rightshift */
1227 4, /* size (0 = byte, 1 = short, 2 = long) */
1228 64, /* bitsize */
1229 false, /* pc_relative */
1230 0, /* bitpos */
1231 complain_overflow_dont, /* complain_on_overflow */
1232 bfd_elf_generic_reloc, /* special_function */
1233 "R_SH_GLOB_DAT64", /* name */
1234 false, /* partial_inplace */
1235 0, /* src_mask */
1236 ((bfd_vma) 0) - 1, /* dst_mask */
1237 false), /* pcrel_offset */
1238
1239 HOWTO (R_SH_JMP_SLOT64, /* type */
1240 0, /* rightshift */
1241 4, /* size (0 = byte, 1 = short, 2 = long) */
1242 64, /* bitsize */
1243 false, /* pc_relative */
1244 0, /* bitpos */
1245 complain_overflow_dont, /* complain_on_overflow */
1246 bfd_elf_generic_reloc, /* special_function */
1247 "R_SH_JMP_SLOT64", /* name */
1248 false, /* partial_inplace */
1249 0, /* src_mask */
1250 ((bfd_vma) 0) - 1, /* dst_mask */
1251 false), /* pcrel_offset */
1252
1253 HOWTO (R_SH_RELATIVE64, /* type */
1254 0, /* rightshift */
1255 4, /* size (0 = byte, 1 = short, 2 = long) */
1256 64, /* bitsize */
1257 false, /* pc_relative */
1258 0, /* bitpos */
1259 complain_overflow_dont, /* complain_on_overflow */
1260 bfd_elf_generic_reloc, /* special_function */
1261 "R_SH_RELATIVE64", /* name */
1262 false, /* partial_inplace */
1263 0, /* src_mask */
1264 ((bfd_vma) 0) - 1, /* dst_mask */
1265 false), /* pcrel_offset */
1266
1267 EMPTY_HOWTO (197),
1268 EMPTY_HOWTO (198),
1269 EMPTY_HOWTO (199),
1270 EMPTY_HOWTO (200),
1271 EMPTY_HOWTO (201),
1272 EMPTY_HOWTO (202),
1273 EMPTY_HOWTO (203),
1274 EMPTY_HOWTO (204),
1275 EMPTY_HOWTO (205),
1276 EMPTY_HOWTO (206),
1277 EMPTY_HOWTO (207),
1278 EMPTY_HOWTO (208),
1279 EMPTY_HOWTO (209),
1280 EMPTY_HOWTO (210),
1281 EMPTY_HOWTO (211),
1282 EMPTY_HOWTO (212),
1283 EMPTY_HOWTO (213),
1284 EMPTY_HOWTO (214),
1285 EMPTY_HOWTO (215),
1286 EMPTY_HOWTO (216),
1287 EMPTY_HOWTO (217),
1288 EMPTY_HOWTO (218),
1289 EMPTY_HOWTO (219),
1290 EMPTY_HOWTO (220),
1291 EMPTY_HOWTO (221),
1292 EMPTY_HOWTO (222),
1293 EMPTY_HOWTO (223),
1294 EMPTY_HOWTO (224),
1295 EMPTY_HOWTO (225),
1296 EMPTY_HOWTO (226),
1297 EMPTY_HOWTO (227),
1298 EMPTY_HOWTO (228),
1299 EMPTY_HOWTO (229),
1300 EMPTY_HOWTO (230),
1301 EMPTY_HOWTO (231),
1302 EMPTY_HOWTO (232),
1303 EMPTY_HOWTO (233),
1304 EMPTY_HOWTO (234),
1305 EMPTY_HOWTO (235),
1306 EMPTY_HOWTO (236),
1307 EMPTY_HOWTO (237),
1308 EMPTY_HOWTO (238),
1309 EMPTY_HOWTO (239),
1310 EMPTY_HOWTO (240),
1311 EMPTY_HOWTO (241),
1312
1313 /* Relocations for SHmedia code. None of these are partial_inplace or
1314 use the field being relocated (except R_SH_PT_16). */
1315
1316 /* The assembler will generate this reloc before a block of SHmedia
1317 instructions. A section should be processed as assuming it contains
1318 data, unless this reloc is seen. Note that a block of SHcompact
1319 instructions are instead preceded by R_SH_CODE.
1320 This is currently not implemented, but should be used for SHmedia
1321 linker relaxation. */
1322 HOWTO (R_SH_SHMEDIA_CODE, /* type */
1323 0, /* rightshift */
1324 1, /* size (0 = byte, 1 = short, 2 = long) */
1325 0, /* bitsize */
1326 false, /* pc_relative */
1327 0, /* bitpos */
1328 complain_overflow_unsigned, /* complain_on_overflow */
1329 sh_elf_ignore_reloc, /* special_function */
1330 "R_SH_SHMEDIA_CODE", /* name */
1331 false, /* partial_inplace */
1332 0, /* src_mask */
1333 0, /* dst_mask */
1334 false), /* pcrel_offset */
1335
1336 /* The assembler will generate this reloc at a PTA or PTB instruction,
1337 and the linker checks the right type of target, or changes a PTA to a
1338 PTB, if the original insn was PT. */
1339 HOWTO (R_SH_PT_16, /* type */
1340 2, /* rightshift */
1341 2, /* size (0 = byte, 1 = short, 2 = long) */
1342 18, /* bitsize */
1343 true, /* pc_relative */
1344 10, /* bitpos */
1345 complain_overflow_signed, /* complain_on_overflow */
1346 bfd_elf_generic_reloc, /* special_function */
1347 "R_SH_PT_16", /* name */
1348 false, /* partial_inplace */
1349 0, /* src_mask */
1350 0x3fffc00, /* dst_mask */
1351 true), /* pcrel_offset */
1352
1353 /* Used in unexpanded MOVI. */
1354 HOWTO (R_SH_IMMS16, /* type */
1355 0, /* rightshift */
1356 2, /* size (0 = byte, 1 = short, 2 = long) */
1357 16, /* bitsize */
1358 false, /* pc_relative */
1359 10, /* bitpos */
1360 complain_overflow_signed, /* complain_on_overflow */
1361 bfd_elf_generic_reloc, /* special_function */
1362 "R_SH_IMMS16", /* name */
1363 false, /* partial_inplace */
1364 0, /* src_mask */
1365 0x3fffc00, /* dst_mask */
1366 false), /* pcrel_offset */
1367
1368 /* Used in SHORI. */
1369 HOWTO (R_SH_IMMU16, /* type */
1370 0, /* rightshift */
1371 2, /* size (0 = byte, 1 = short, 2 = long) */
1372 16, /* bitsize */
1373 false, /* pc_relative */
1374 10, /* bitpos */
1375 complain_overflow_unsigned, /* complain_on_overflow */
1376 bfd_elf_generic_reloc, /* special_function */
1377 "R_SH_IMMU16", /* name */
1378 false, /* partial_inplace */
1379 0, /* src_mask */
1380 0x3fffc00, /* dst_mask */
1381 false), /* pcrel_offset */
1382
1383 /* Used in MOVI and SHORI (x & 65536). */
1384 HOWTO (R_SH_IMM_LOW16, /* type */
1385 0, /* rightshift */
1386 2, /* size (0 = byte, 1 = short, 2 = long) */
1387 64, /* bitsize */
1388 false, /* pc_relative */
1389 10, /* bitpos */
1390 complain_overflow_dont, /* complain_on_overflow */
1391 bfd_elf_generic_reloc, /* special_function */
1392 "R_SH_IMM_LOW16", /* name */
1393 false, /* partial_inplace */
1394 0, /* src_mask */
1395 0x3fffc00, /* dst_mask */
1396 false), /* pcrel_offset */
1397
1398 /* Used in MOVI and SHORI ((x - $) & 65536). */
1399 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */
1400 0, /* rightshift */
1401 2, /* size (0 = byte, 1 = short, 2 = long) */
1402 64, /* bitsize */
1403 true, /* pc_relative */
1404 10, /* bitpos */
1405 complain_overflow_dont, /* complain_on_overflow */
1406 bfd_elf_generic_reloc, /* special_function */
1407 "R_SH_IMM_LOW16_PCREL", /* name */
1408 false, /* partial_inplace */
1409 0, /* src_mask */
1410 0x3fffc00, /* dst_mask */
1411 true), /* pcrel_offset */
1412
1413 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1414 HOWTO (R_SH_IMM_MEDLOW16, /* type */
1415 16, /* rightshift */
1416 2, /* size (0 = byte, 1 = short, 2 = long) */
1417 64, /* bitsize */
1418 false, /* pc_relative */
1419 10, /* bitpos */
1420 complain_overflow_dont, /* complain_on_overflow */
1421 bfd_elf_generic_reloc, /* special_function */
1422 "R_SH_IMM_MEDLOW16", /* name */
1423 false, /* partial_inplace */
1424 0, /* src_mask */
1425 0x3fffc00, /* dst_mask */
1426 false), /* pcrel_offset */
1427
1428 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
1429 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
1430 16, /* rightshift */
1431 2, /* size (0 = byte, 1 = short, 2 = long) */
1432 64, /* bitsize */
1433 true, /* pc_relative */
1434 10, /* bitpos */
1435 complain_overflow_dont, /* complain_on_overflow */
1436 bfd_elf_generic_reloc, /* special_function */
1437 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1438 false, /* partial_inplace */
1439 0, /* src_mask */
1440 0x3fffc00, /* dst_mask */
1441 true), /* pcrel_offset */
1442
1443 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1444 HOWTO (R_SH_IMM_MEDHI16, /* type */
1445 32, /* rightshift */
1446 2, /* size (0 = byte, 1 = short, 2 = long) */
1447 64, /* bitsize */
1448 false, /* pc_relative */
1449 10, /* bitpos */
1450 complain_overflow_dont, /* complain_on_overflow */
1451 bfd_elf_generic_reloc, /* special_function */
1452 "R_SH_IMM_MEDHI16", /* name */
1453 false, /* partial_inplace */
1454 0, /* src_mask */
1455 0x3fffc00, /* dst_mask */
1456 false), /* pcrel_offset */
1457
1458 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
1459 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
1460 32, /* rightshift */
1461 2, /* size (0 = byte, 1 = short, 2 = long) */
1462 64, /* bitsize */
1463 true, /* pc_relative */
1464 10, /* bitpos */
1465 complain_overflow_dont, /* complain_on_overflow */
1466 bfd_elf_generic_reloc, /* special_function */
1467 "R_SH_IMM_MEDHI16_PCREL", /* name */
1468 false, /* partial_inplace */
1469 0, /* src_mask */
1470 0x3fffc00, /* dst_mask */
1471 true), /* pcrel_offset */
1472
1473 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1474 HOWTO (R_SH_IMM_HI16, /* type */
1475 48, /* rightshift */
1476 2, /* size (0 = byte, 1 = short, 2 = long) */
1477 64, /* bitsize */
1478 false, /* pc_relative */
1479 10, /* bitpos */
1480 complain_overflow_dont, /* complain_on_overflow */
1481 bfd_elf_generic_reloc, /* special_function */
1482 "R_SH_IMM_HI16", /* name */
1483 false, /* partial_inplace */
1484 0, /* src_mask */
1485 0x3fffc00, /* dst_mask */
1486 false), /* pcrel_offset */
1487
1488 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
1489 HOWTO (R_SH_IMM_HI16_PCREL, /* type */
1490 48, /* rightshift */
1491 2, /* size (0 = byte, 1 = short, 2 = long) */
1492 64, /* bitsize */
1493 true, /* pc_relative */
1494 10, /* bitpos */
1495 complain_overflow_dont, /* complain_on_overflow */
1496 bfd_elf_generic_reloc, /* special_function */
1497 "R_SH_IMM_HI16_PCREL", /* name */
1498 false, /* partial_inplace */
1499 0, /* src_mask */
1500 0x3fffc00, /* dst_mask */
1501 true), /* pcrel_offset */
1502
1503 /* For the .uaquad pseudo. */
1504 HOWTO (R_SH_64, /* type */
1505 0, /* rightshift */
1506 4, /* size (0 = byte, 1 = short, 2 = long) */
1507 64, /* bitsize */
1508 false, /* pc_relative */
1509 0, /* bitpos */
1510 complain_overflow_dont, /* complain_on_overflow */
1511 bfd_elf_generic_reloc, /* special_function */
1512 "R_SH_64", /* name */
1513 false, /* partial_inplace */
1514 0, /* src_mask */
1515 ((bfd_vma) 0) - 1, /* dst_mask */
1516 false), /* pcrel_offset */
1517
1518 /* For the .uaquad pseudo, (x - $). */
1519 HOWTO (R_SH_64_PCREL, /* type */
1520 48, /* rightshift */
1521 2, /* size (0 = byte, 1 = short, 2 = long) */
1522 64, /* bitsize */
1523 true, /* pc_relative */
1524 10, /* bitpos */
1525 complain_overflow_dont, /* complain_on_overflow */
1526 bfd_elf_generic_reloc, /* special_function */
1527 "R_SH_64_PCREL", /* name */
1528 false, /* partial_inplace */
1529 0, /* src_mask */
1530 ((bfd_vma) 0) - 1, /* dst_mask */
1531 true), /* pcrel_offset */
1532
1533 #endif
1534 };
1535
1536 static bfd_reloc_status_type
1537 sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, addr,
1538 symbol_section, start, end)
1539 int r_type ATTRIBUTE_UNUSED;
1540 bfd *input_bfd;
1541 asection *input_section;
1542 bfd_byte *contents;
1543 bfd_vma addr;
1544 asection *symbol_section;
1545 bfd_vma start, end;
1546 {
1547 static bfd_vma last_addr;
1548 static asection *last_symbol_section;
1549 bfd_byte *free_contents = NULL;
1550 bfd_byte *start_ptr, *ptr, *last_ptr;
1551 int diff, cum_diff;
1552 bfd_signed_vma x;
1553 int insn;
1554
1555 /* Sanity check the address. */
1556 if (addr > input_section->_raw_size)
1557 return bfd_reloc_outofrange;
1558
1559 /* We require the start and end relocations to be processed consecutively -
1560 although we allow then to be processed forwards or backwards. */
1561 if (! last_addr)
1562 {
1563 last_addr = addr;
1564 last_symbol_section = symbol_section;
1565 return bfd_reloc_ok;
1566 }
1567 if (last_addr != addr)
1568 abort ();
1569 last_addr = 0;
1570
1571 if (! symbol_section || last_symbol_section != symbol_section || end < start)
1572 return bfd_reloc_outofrange;
1573
1574 /* Get the symbol_section contents. */
1575 if (symbol_section != input_section)
1576 {
1577 if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
1578 contents = elf_section_data (symbol_section)->this_hdr.contents;
1579 else
1580 {
1581 contents = (bfd_byte *) bfd_malloc (symbol_section->_raw_size);
1582 if (contents == NULL)
1583 return bfd_reloc_outofrange;
1584 free_contents = contents;
1585 if (! bfd_get_section_contents (input_bfd, symbol_section, contents,
1586 (file_ptr) 0,
1587 symbol_section->_raw_size))
1588 {
1589 free (contents);
1590 return bfd_reloc_outofrange;
1591 }
1592 }
1593 }
1594 #define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
1595 start_ptr = contents + start;
1596 for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
1597 {
1598 for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
1599 ptr -= 2;
1600 ptr += 2;
1601 diff = (last_ptr - ptr) >> 1;
1602 cum_diff += diff & 1;
1603 cum_diff += diff;
1604 }
1605 /* Calculate the start / end values to load into rs / re minus four -
1606 so that will cancel out the four we would otherwise have to add to
1607 addr to get the value to subtract in order to get relative addressing. */
1608 if (cum_diff >= 0)
1609 {
1610 start -= 4;
1611 end = (ptr + cum_diff * 2) - contents;
1612 }
1613 else
1614 {
1615 bfd_vma start0 = start - 4;
1616
1617 while (start0 && IS_PPI (contents + start0))
1618 start0 -= 2;
1619 start0 = start - 2 - ((start - start0) & 2);
1620 start = start0 - cum_diff - 2;
1621 end = start0;
1622 }
1623
1624 if (free_contents)
1625 free (free_contents);
1626
1627 insn = bfd_get_16 (input_bfd, contents + addr);
1628
1629 x = (insn & 0x200 ? end : start) - addr;
1630 if (input_section != symbol_section)
1631 x += ((symbol_section->output_section->vma + symbol_section->output_offset)
1632 - (input_section->output_section->vma
1633 + input_section->output_offset));
1634 x >>= 1;
1635 if (x < -128 || x > 127)
1636 return bfd_reloc_overflow;
1637
1638 x = (insn & ~0xff) | (x & 0xff);
1639 bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
1640
1641 return bfd_reloc_ok;
1642 }
1643
1644 /* This function is used for normal relocs. This used to be like the COFF
1645 function, and is almost certainly incorrect for other ELF targets. */
1646
1647 static bfd_reloc_status_type
1648 sh_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
1649 error_message)
1650 bfd *abfd;
1651 arelent *reloc_entry;
1652 asymbol *symbol_in;
1653 PTR data;
1654 asection *input_section;
1655 bfd *output_bfd;
1656 char **error_message ATTRIBUTE_UNUSED;
1657 {
1658 unsigned long insn;
1659 bfd_vma sym_value;
1660 enum elf_sh_reloc_type r_type;
1661 bfd_vma addr = reloc_entry->address;
1662 bfd_byte *hit_data = addr + (bfd_byte *) data;
1663
1664 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
1665
1666 if (output_bfd != NULL)
1667 {
1668 /* Partial linking--do nothing. */
1669 reloc_entry->address += input_section->output_offset;
1670 return bfd_reloc_ok;
1671 }
1672
1673 /* Almost all relocs have to do with relaxing. If any work must be
1674 done for them, it has been done in sh_relax_section. */
1675 if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
1676 return bfd_reloc_ok;
1677
1678 if (symbol_in != NULL
1679 && bfd_is_und_section (symbol_in->section))
1680 return bfd_reloc_undefined;
1681
1682 if (bfd_is_com_section (symbol_in->section))
1683 sym_value = 0;
1684 else
1685 sym_value = (symbol_in->value +
1686 symbol_in->section->output_section->vma +
1687 symbol_in->section->output_offset);
1688
1689 switch (r_type)
1690 {
1691 case R_SH_DIR32:
1692 insn = bfd_get_32 (abfd, hit_data);
1693 insn += sym_value + reloc_entry->addend;
1694 bfd_put_32 (abfd, (bfd_vma) insn, hit_data);
1695 break;
1696 case R_SH_IND12W:
1697 insn = bfd_get_16 (abfd, hit_data);
1698 sym_value += reloc_entry->addend;
1699 sym_value -= (input_section->output_section->vma
1700 + input_section->output_offset
1701 + addr
1702 + 4);
1703 sym_value += (insn & 0xfff) << 1;
1704 if (insn & 0x800)
1705 sym_value -= 0x1000;
1706 insn = (insn & 0xf000) | (sym_value & 0xfff);
1707 bfd_put_16 (abfd, (bfd_vma) insn, hit_data);
1708 if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000)
1709 return bfd_reloc_overflow;
1710 break;
1711 default:
1712 abort ();
1713 break;
1714 }
1715
1716 return bfd_reloc_ok;
1717 }
1718
1719 /* This function is used for relocs which are only used for relaxing,
1720 which the linker should otherwise ignore. */
1721
1722 static bfd_reloc_status_type
1723 sh_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section,
1724 output_bfd, error_message)
1725 bfd *abfd ATTRIBUTE_UNUSED;
1726 arelent *reloc_entry;
1727 asymbol *symbol ATTRIBUTE_UNUSED;
1728 PTR data ATTRIBUTE_UNUSED;
1729 asection *input_section;
1730 bfd *output_bfd;
1731 char **error_message ATTRIBUTE_UNUSED;
1732 {
1733 if (output_bfd != NULL)
1734 reloc_entry->address += input_section->output_offset;
1735 return bfd_reloc_ok;
1736 }
1737
1738 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
1739
1740 struct elf_reloc_map
1741 {
1742 bfd_reloc_code_real_type bfd_reloc_val;
1743 unsigned char elf_reloc_val;
1744 };
1745
1746 /* An array mapping BFD reloc codes to SH ELF relocs. */
1747
1748 static const struct elf_reloc_map sh_reloc_map[] =
1749 {
1750 { BFD_RELOC_NONE, R_SH_NONE },
1751 { BFD_RELOC_32, R_SH_DIR32 },
1752 { BFD_RELOC_CTOR, R_SH_DIR32 },
1753 { BFD_RELOC_32_PCREL, R_SH_REL32 },
1754 { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
1755 { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
1756 { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
1757 { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
1758 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
1759 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
1760 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
1761 { BFD_RELOC_SH_USES, R_SH_USES },
1762 { BFD_RELOC_SH_COUNT, R_SH_COUNT },
1763 { BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
1764 { BFD_RELOC_SH_CODE, R_SH_CODE },
1765 { BFD_RELOC_SH_DATA, R_SH_DATA },
1766 { BFD_RELOC_SH_LABEL, R_SH_LABEL },
1767 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
1768 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
1769 { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
1770 { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
1771 { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 },
1772 { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 },
1773 { BFD_RELOC_SH_COPY, R_SH_COPY },
1774 { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT },
1775 { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT },
1776 { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE },
1777 { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF },
1778 { BFD_RELOC_SH_GOTPC, R_SH_GOTPC },
1779 { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 },
1780 #ifdef INCLUDE_SHMEDIA
1781 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
1782 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
1783 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
1784 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
1785 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
1786 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
1787 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
1788 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
1789 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
1790 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
1791 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
1792 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
1793 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
1794 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
1795 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
1796 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
1797 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
1798 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
1799 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
1800 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
1801 { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
1802 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
1803 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
1804 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
1805 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
1806 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
1807 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
1808 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
1809 { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
1810 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
1811 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
1812 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
1813 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
1814 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
1815 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
1816 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
1817 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
1818 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
1819 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
1820 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
1821 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
1822 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
1823 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
1824 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
1825 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
1826 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
1827 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
1828 { BFD_RELOC_64, R_SH_64 },
1829 { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
1830 #endif /* not INCLUDE_SHMEDIA */
1831 };
1832
1833 /* Given a BFD reloc code, return the howto structure for the
1834 corresponding SH ELf reloc. */
1835
1836 static reloc_howto_type *
1837 sh_elf_reloc_type_lookup (abfd, code)
1838 bfd *abfd ATTRIBUTE_UNUSED;
1839 bfd_reloc_code_real_type code;
1840 {
1841 unsigned int i;
1842
1843 for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
1844 {
1845 if (sh_reloc_map[i].bfd_reloc_val == code)
1846 return &sh_elf_howto_table[(int) sh_reloc_map[i].elf_reloc_val];
1847 }
1848
1849 return NULL;
1850 }
1851
1852 /* Given an ELF reloc, fill in the howto field of a relent. */
1853
1854 static void
1855 sh_elf_info_to_howto (abfd, cache_ptr, dst)
1856 bfd *abfd ATTRIBUTE_UNUSED;
1857 arelent *cache_ptr;
1858 Elf_Internal_Rela *dst;
1859 {
1860 unsigned int r;
1861
1862 r = ELF32_R_TYPE (dst->r_info);
1863
1864 BFD_ASSERT (r < (unsigned int) R_SH_max);
1865 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
1866 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_2 || r > R_SH_LAST_INVALID_RELOC_2);
1867 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_LAST_INVALID_RELOC_3);
1868 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
1869
1870 cache_ptr->howto = &sh_elf_howto_table[r];
1871 }
1872 \f
1873 /* This function handles relaxing for SH ELF. See the corresponding
1874 function in coff-sh.c for a description of what this does. FIXME:
1875 There is a lot of duplication here between this code and the COFF
1876 specific code. The format of relocs and symbols is wound deeply
1877 into this code, but it would still be better if the duplication
1878 could be eliminated somehow. Note in particular that although both
1879 functions use symbols like R_SH_CODE, those symbols have different
1880 values; in coff-sh.c they come from include/coff/sh.h, whereas here
1881 they come from enum elf_sh_reloc_type in include/elf/sh.h. */
1882
1883 static boolean
1884 sh_elf_relax_section (abfd, sec, link_info, again)
1885 bfd *abfd;
1886 asection *sec;
1887 struct bfd_link_info *link_info;
1888 boolean *again;
1889 {
1890 Elf_Internal_Shdr *symtab_hdr;
1891 Elf_Internal_Shdr *shndx_hdr;
1892 Elf_Internal_Rela *internal_relocs;
1893 Elf_Internal_Rela *free_relocs = NULL;
1894 boolean have_code;
1895 Elf_Internal_Rela *irel, *irelend;
1896 bfd_byte *contents = NULL;
1897 bfd_byte *free_contents = NULL;
1898 Elf32_External_Sym *extsyms = NULL;
1899 Elf32_External_Sym *free_extsyms = NULL;
1900 Elf_External_Sym_Shndx *shndx_buf = NULL;
1901
1902 *again = false;
1903
1904 if (link_info->relocateable
1905 || (sec->flags & SEC_RELOC) == 0
1906 || sec->reloc_count == 0)
1907 return true;
1908
1909 #ifdef INCLUDE_SHMEDIA
1910 if (elf_section_data (sec)->this_hdr.sh_flags
1911 & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED))
1912 {
1913 return true;
1914 }
1915 #endif
1916
1917 /* If this is the first time we have been called for this section,
1918 initialize the cooked size. */
1919 if (sec->_cooked_size == 0)
1920 sec->_cooked_size = sec->_raw_size;
1921
1922 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1923 shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
1924
1925 internal_relocs = (_bfd_elf32_link_read_relocs
1926 (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
1927 link_info->keep_memory));
1928 if (internal_relocs == NULL)
1929 goto error_return;
1930 if (! link_info->keep_memory)
1931 free_relocs = internal_relocs;
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 free_contents = contents;
1960
1961 if (! bfd_get_section_contents (abfd, sec, contents,
1962 (file_ptr) 0, sec->_raw_size))
1963 goto error_return;
1964 }
1965 }
1966
1967 /* The r_addend field of the R_SH_USES reloc will point us to
1968 the register load. The 4 is because the r_addend field is
1969 computed as though it were a jump offset, which are based
1970 from 4 bytes after the jump instruction. */
1971 laddr = irel->r_offset + 4 + irel->r_addend;
1972 if (laddr >= sec->_raw_size)
1973 {
1974 (*_bfd_error_handler) (_("%s: 0x%lx: warning: bad R_SH_USES offset"),
1975 bfd_archive_filename (abfd),
1976 (unsigned long) irel->r_offset);
1977 continue;
1978 }
1979 insn = bfd_get_16 (abfd, contents + laddr);
1980
1981 /* If the instruction is not mov.l NN,rN, we don't know what to
1982 do. */
1983 if ((insn & 0xf000) != 0xd000)
1984 {
1985 ((*_bfd_error_handler)
1986 (_("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
1987 bfd_archive_filename (abfd), (unsigned long) irel->r_offset, insn));
1988 continue;
1989 }
1990
1991 /* Get the address from which the register is being loaded. The
1992 displacement in the mov.l instruction is quadrupled. It is a
1993 displacement from four bytes after the movl instruction, but,
1994 before adding in the PC address, two least significant bits
1995 of the PC are cleared. We assume that the section is aligned
1996 on a four byte boundary. */
1997 paddr = insn & 0xff;
1998 paddr *= 4;
1999 paddr += (laddr + 4) &~ (bfd_vma) 3;
2000 if (paddr >= sec->_raw_size)
2001 {
2002 ((*_bfd_error_handler)
2003 (_("%s: 0x%lx: warning: bad R_SH_USES load offset"),
2004 bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
2005 continue;
2006 }
2007
2008 /* Get the reloc for the address from which the register is
2009 being loaded. This reloc will tell us which function is
2010 actually being called. */
2011 for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
2012 if (irelfn->r_offset == paddr
2013 && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
2014 break;
2015 if (irelfn >= irelend)
2016 {
2017 ((*_bfd_error_handler)
2018 (_("%s: 0x%lx: warning: could not find expected reloc"),
2019 bfd_archive_filename (abfd), (unsigned long) paddr));
2020 continue;
2021 }
2022
2023 /* Read this BFD's symbols if we haven't done so already. */
2024 if (extsyms == NULL)
2025 {
2026 if (symtab_hdr->contents != NULL)
2027 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
2028 else
2029 {
2030 bfd_size_type amt;
2031
2032 amt = symtab_hdr->sh_info;
2033 amt *= sizeof (Elf32_External_Sym);
2034 extsyms = (Elf32_External_Sym *) bfd_malloc (amt);
2035 if (extsyms == NULL)
2036 goto error_return;
2037 free_extsyms = extsyms;
2038 if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
2039 || bfd_bread ((PTR) extsyms, amt, abfd) != amt)
2040 goto error_return;
2041 symtab_hdr->contents = (bfd_byte *) extsyms;
2042 }
2043
2044 if (shndx_hdr->sh_size != 0)
2045 {
2046 bfd_size_type amt;
2047
2048 amt = symtab_hdr->sh_info;
2049 amt *= sizeof (Elf_External_Sym_Shndx);
2050 shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
2051 if (shndx_buf == NULL)
2052 goto error_return;
2053 if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
2054 || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt)
2055 goto error_return;
2056 shndx_hdr->contents = (bfd_byte *) shndx_buf;
2057 }
2058 }
2059
2060 /* Get the value of the symbol referred to by the reloc. */
2061 if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
2062 {
2063 /* A local symbol. */
2064 Elf32_External_Sym *esym;
2065 Elf_External_Sym_Shndx *shndx;
2066 Elf_Internal_Sym isym;
2067
2068 esym = extsyms + ELF32_R_SYM (irelfn->r_info);
2069 shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irelfn->r_info) : 0);
2070 bfd_elf32_swap_symbol_in (abfd, (const PTR) esym, (const PTR) shndx,
2071 &isym);
2072
2073 if (isym.st_shndx
2074 != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec))
2075 {
2076 ((*_bfd_error_handler)
2077 (_("%s: 0x%lx: warning: symbol in unexpected section"),
2078 bfd_archive_filename (abfd), (unsigned long) paddr));
2079 continue;
2080 }
2081
2082 symval = (isym.st_value
2083 + sec->output_section->vma
2084 + sec->output_offset);
2085 }
2086 else
2087 {
2088 unsigned long indx;
2089 struct elf_link_hash_entry *h;
2090
2091 indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
2092 h = elf_sym_hashes (abfd)[indx];
2093 BFD_ASSERT (h != NULL);
2094 if (h->root.type != bfd_link_hash_defined
2095 && h->root.type != bfd_link_hash_defweak)
2096 {
2097 /* This appears to be a reference to an undefined
2098 symbol. Just ignore it--it will be caught by the
2099 regular reloc processing. */
2100 continue;
2101 }
2102
2103 symval = (h->root.u.def.value
2104 + h->root.u.def.section->output_section->vma
2105 + h->root.u.def.section->output_offset);
2106 }
2107
2108 symval += bfd_get_32 (abfd, contents + paddr);
2109
2110 /* See if this function call can be shortened. */
2111 foff = (symval
2112 - (irel->r_offset
2113 + sec->output_section->vma
2114 + sec->output_offset
2115 + 4));
2116 if (foff < -0x1000 || foff >= 0x1000)
2117 {
2118 /* After all that work, we can't shorten this function call. */
2119 continue;
2120 }
2121
2122 /* Shorten the function call. */
2123
2124 /* For simplicity of coding, we are going to modify the section
2125 contents, the section relocs, and the BFD symbol table. We
2126 must tell the rest of the code not to free up this
2127 information. It would be possible to instead create a table
2128 of changes which have to be made, as is done in coff-mips.c;
2129 that would be more work, but would require less memory when
2130 the linker is run. */
2131
2132 elf_section_data (sec)->relocs = internal_relocs;
2133 free_relocs = NULL;
2134
2135 elf_section_data (sec)->this_hdr.contents = contents;
2136 free_contents = NULL;
2137
2138 free_extsyms = NULL;
2139
2140 /* Replace the jsr with a bsr. */
2141
2142 /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
2143 replace the jsr with a bsr. */
2144 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
2145 if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
2146 {
2147 /* If this needs to be changed because of future relaxing,
2148 it will be handled here like other internal IND12W
2149 relocs. */
2150 bfd_put_16 (abfd,
2151 (bfd_vma) 0xb000 | ((foff >> 1) & 0xfff),
2152 contents + irel->r_offset);
2153 }
2154 else
2155 {
2156 /* We can't fully resolve this yet, because the external
2157 symbol value may be changed by future relaxing. We let
2158 the final link phase handle it. */
2159 bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
2160 }
2161
2162 /* See if there is another R_SH_USES reloc referring to the same
2163 register load. */
2164 for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
2165 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
2166 && laddr == irelscan->r_offset + 4 + irelscan->r_addend)
2167 break;
2168 if (irelscan < irelend)
2169 {
2170 /* Some other function call depends upon this register load,
2171 and we have not yet converted that function call.
2172 Indeed, we may never be able to convert it. There is
2173 nothing else we can do at this point. */
2174 continue;
2175 }
2176
2177 /* Look for a R_SH_COUNT reloc on the location where the
2178 function address is stored. Do this before deleting any
2179 bytes, to avoid confusion about the address. */
2180 for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
2181 if (irelcount->r_offset == paddr
2182 && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
2183 break;
2184
2185 /* Delete the register load. */
2186 if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
2187 goto error_return;
2188
2189 /* That will change things, so, just in case it permits some
2190 other function call to come within range, we should relax
2191 again. Note that this is not required, and it may be slow. */
2192 *again = true;
2193
2194 /* Now check whether we got a COUNT reloc. */
2195 if (irelcount >= irelend)
2196 {
2197 ((*_bfd_error_handler)
2198 (_("%s: 0x%lx: warning: could not find expected COUNT reloc"),
2199 bfd_archive_filename (abfd), (unsigned long) paddr));
2200 continue;
2201 }
2202
2203 /* The number of uses is stored in the r_addend field. We've
2204 just deleted one. */
2205 if (irelcount->r_addend == 0)
2206 {
2207 ((*_bfd_error_handler) (_("%s: 0x%lx: warning: bad count"),
2208 bfd_archive_filename (abfd),
2209 (unsigned long) paddr));
2210 continue;
2211 }
2212
2213 --irelcount->r_addend;
2214
2215 /* If there are no more uses, we can delete the address. Reload
2216 the address from irelfn, in case it was changed by the
2217 previous call to sh_elf_relax_delete_bytes. */
2218 if (irelcount->r_addend == 0)
2219 {
2220 if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
2221 goto error_return;
2222 }
2223
2224 /* We've done all we can with that function call. */
2225 }
2226
2227 /* Look for load and store instructions that we can align on four
2228 byte boundaries. */
2229 if (have_code)
2230 {
2231 boolean swapped;
2232
2233 /* Get the section contents. */
2234 if (contents == NULL)
2235 {
2236 if (elf_section_data (sec)->this_hdr.contents != NULL)
2237 contents = elf_section_data (sec)->this_hdr.contents;
2238 else
2239 {
2240 contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
2241 if (contents == NULL)
2242 goto error_return;
2243 free_contents = contents;
2244
2245 if (! bfd_get_section_contents (abfd, sec, contents,
2246 (file_ptr) 0, sec->_raw_size))
2247 goto error_return;
2248 }
2249 }
2250
2251 if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
2252 &swapped))
2253 goto error_return;
2254
2255 if (swapped)
2256 {
2257 elf_section_data (sec)->relocs = internal_relocs;
2258 free_relocs = NULL;
2259
2260 elf_section_data (sec)->this_hdr.contents = contents;
2261 free_contents = NULL;
2262
2263 free_extsyms = NULL;
2264 }
2265 }
2266
2267 if (free_relocs != NULL)
2268 free (free_relocs);
2269
2270 if (free_contents != NULL)
2271 {
2272 if (! link_info->keep_memory)
2273 free (free_contents);
2274 else
2275 {
2276 /* Cache the section contents for elf_link_input_bfd. */
2277 elf_section_data (sec)->this_hdr.contents = contents;
2278 }
2279 }
2280
2281 if (shndx_buf != NULL)
2282 {
2283 shndx_hdr->contents = NULL;
2284 free (shndx_buf);
2285 }
2286
2287 if (free_extsyms != NULL)
2288 {
2289 if (! link_info->keep_memory)
2290 {
2291 symtab_hdr->contents = NULL;
2292 free (free_extsyms);
2293 }
2294 }
2295
2296 return true;
2297
2298 error_return:
2299 if (free_relocs != NULL)
2300 free (free_relocs);
2301 if (free_contents != NULL)
2302 free (free_contents);
2303 if (shndx_buf != NULL)
2304 {
2305 shndx_hdr->contents = NULL;
2306 free (shndx_buf);
2307 }
2308 if (free_extsyms != NULL)
2309 {
2310 symtab_hdr->contents = NULL;
2311 free (free_extsyms);
2312 }
2313
2314 return false;
2315 }
2316
2317 /* Delete some bytes from a section while relaxing. FIXME: There is a
2318 lot of duplication between this function and sh_relax_delete_bytes
2319 in coff-sh.c. */
2320
2321 static boolean
2322 sh_elf_relax_delete_bytes (abfd, sec, addr, count)
2323 bfd *abfd;
2324 asection *sec;
2325 bfd_vma addr;
2326 int count;
2327 {
2328 Elf_Internal_Shdr *symtab_hdr;
2329 Elf_Internal_Shdr *shndx_hdr;
2330 Elf32_External_Sym *extsyms;
2331 unsigned int sec_shndx;
2332 bfd_byte *contents;
2333 Elf_Internal_Rela *irel, *irelend;
2334 Elf_Internal_Rela *irelalign;
2335 bfd_vma toaddr;
2336 Elf32_External_Sym *esym, *esymend;
2337 Elf_External_Sym_Shndx *shndx_buf, *shndx;
2338 struct elf_link_hash_entry **sym_hashes;
2339 struct elf_link_hash_entry **end_hashes;
2340 unsigned int symcount;
2341 asection *o;
2342
2343 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2344 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
2345
2346 shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
2347 shndx_buf = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
2348
2349 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
2350
2351 contents = elf_section_data (sec)->this_hdr.contents;
2352
2353 /* The deletion must stop at the next ALIGN reloc for an aligment
2354 power larger than the number of bytes we are deleting. */
2355
2356 irelalign = NULL;
2357 toaddr = sec->_cooked_size;
2358
2359 irel = elf_section_data (sec)->relocs;
2360 irelend = irel + sec->reloc_count;
2361 for (; irel < irelend; irel++)
2362 {
2363 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
2364 && irel->r_offset > addr
2365 && count < (1 << irel->r_addend))
2366 {
2367 irelalign = irel;
2368 toaddr = irel->r_offset;
2369 break;
2370 }
2371 }
2372
2373 /* Actually delete the bytes. */
2374 memmove (contents + addr, contents + addr + count,
2375 (size_t) (toaddr - addr - count));
2376 if (irelalign == NULL)
2377 sec->_cooked_size -= count;
2378 else
2379 {
2380 int i;
2381
2382 #define NOP_OPCODE (0x0009)
2383
2384 BFD_ASSERT ((count & 1) == 0);
2385 for (i = 0; i < count; i += 2)
2386 bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
2387 }
2388
2389 /* Adjust all the relocs. */
2390 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
2391 {
2392 bfd_vma nraddr, stop;
2393 bfd_vma start = 0;
2394 int insn = 0;
2395 Elf_Internal_Sym sym;
2396 int off, adjust, oinsn;
2397 bfd_signed_vma voff = 0;
2398 boolean overflow;
2399
2400 /* Get the new reloc address. */
2401 nraddr = irel->r_offset;
2402 if ((irel->r_offset > addr
2403 && irel->r_offset < toaddr)
2404 || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
2405 && irel->r_offset == toaddr))
2406 nraddr -= count;
2407
2408 /* See if this reloc was for the bytes we have deleted, in which
2409 case we no longer care about it. Don't delete relocs which
2410 represent addresses, though. */
2411 if (irel->r_offset >= addr
2412 && irel->r_offset < addr + count
2413 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
2414 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
2415 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
2416 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
2417 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2418 (int) R_SH_NONE);
2419
2420 /* If this is a PC relative reloc, see if the range it covers
2421 includes the bytes we have deleted. */
2422 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
2423 {
2424 default:
2425 break;
2426
2427 case R_SH_DIR8WPN:
2428 case R_SH_IND12W:
2429 case R_SH_DIR8WPZ:
2430 case R_SH_DIR8WPL:
2431 start = irel->r_offset;
2432 insn = bfd_get_16 (abfd, contents + nraddr);
2433 break;
2434 }
2435
2436 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
2437 {
2438 default:
2439 start = stop = addr;
2440 break;
2441
2442 case R_SH_DIR32:
2443 /* If this reloc is against a symbol defined in this
2444 section, and the symbol will not be adjusted below, we
2445 must check the addend to see it will put the value in
2446 range to be adjusted, and hence must be changed. */
2447 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
2448 {
2449 esym = extsyms + ELF32_R_SYM (irel->r_info);
2450 shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irel->r_info) : 0);
2451 bfd_elf32_swap_symbol_in (abfd, (const PTR) esym,
2452 (const PTR) shndx, &sym);
2453
2454 if (sym.st_shndx == sec_shndx
2455 && (sym.st_value <= addr
2456 || sym.st_value >= toaddr))
2457 {
2458 bfd_vma val;
2459
2460 val = bfd_get_32 (abfd, contents + nraddr);
2461 val += sym.st_value;
2462 if (val > addr && val < toaddr)
2463 bfd_put_32 (abfd, val - count, contents + nraddr);
2464 }
2465 }
2466 start = stop = addr;
2467 break;
2468
2469 case R_SH_DIR8WPN:
2470 off = insn & 0xff;
2471 if (off & 0x80)
2472 off -= 0x100;
2473 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
2474 break;
2475
2476 case R_SH_IND12W:
2477 if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info)
2478 start = stop = addr;
2479 else
2480 {
2481 off = insn & 0xfff;
2482 if (off & 0x800)
2483 off -= 0x1000;
2484 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
2485 }
2486 break;
2487
2488 case R_SH_DIR8WPZ:
2489 off = insn & 0xff;
2490 stop = start + 4 + off * 2;
2491 break;
2492
2493 case R_SH_DIR8WPL:
2494 off = insn & 0xff;
2495 stop = (start & ~(bfd_vma) 3) + 4 + off * 4;
2496 break;
2497
2498 case R_SH_SWITCH8:
2499 case R_SH_SWITCH16:
2500 case R_SH_SWITCH32:
2501 /* These relocs types represent
2502 .word L2-L1
2503 The r_addend field holds the difference between the reloc
2504 address and L1. That is the start of the reloc, and
2505 adding in the contents gives us the top. We must adjust
2506 both the r_offset field and the section contents.
2507 N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
2508 and the elf bfd r_offset is called r_vaddr. */
2509
2510 stop = irel->r_offset;
2511 start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
2512
2513 if (start > addr
2514 && start < toaddr
2515 && (stop <= addr || stop >= toaddr))
2516 irel->r_addend += count;
2517 else if (stop > addr
2518 && stop < toaddr
2519 && (start <= addr || start >= toaddr))
2520 irel->r_addend -= count;
2521
2522 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
2523 voff = bfd_get_signed_16 (abfd, contents + nraddr);
2524 else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
2525 voff = bfd_get_8 (abfd, contents + nraddr);
2526 else
2527 voff = bfd_get_signed_32 (abfd, contents + nraddr);
2528 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
2529
2530 break;
2531
2532 case R_SH_USES:
2533 start = irel->r_offset;
2534 stop = (bfd_vma) ((bfd_signed_vma) start
2535 + (long) irel->r_addend
2536 + 4);
2537 break;
2538 }
2539
2540 if (start > addr
2541 && start < toaddr
2542 && (stop <= addr || stop >= toaddr))
2543 adjust = count;
2544 else if (stop > addr
2545 && stop < toaddr
2546 && (start <= addr || start >= toaddr))
2547 adjust = - count;
2548 else
2549 adjust = 0;
2550
2551 if (adjust != 0)
2552 {
2553 oinsn = insn;
2554 overflow = false;
2555 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
2556 {
2557 default:
2558 abort ();
2559 break;
2560
2561 case R_SH_DIR8WPN:
2562 case R_SH_DIR8WPZ:
2563 insn += adjust / 2;
2564 if ((oinsn & 0xff00) != (insn & 0xff00))
2565 overflow = true;
2566 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
2567 break;
2568
2569 case R_SH_IND12W:
2570 insn += adjust / 2;
2571 if ((oinsn & 0xf000) != (insn & 0xf000))
2572 overflow = true;
2573 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
2574 break;
2575
2576 case R_SH_DIR8WPL:
2577 BFD_ASSERT (adjust == count || count >= 4);
2578 if (count >= 4)
2579 insn += adjust / 4;
2580 else
2581 {
2582 if ((irel->r_offset & 3) == 0)
2583 ++insn;
2584 }
2585 if ((oinsn & 0xff00) != (insn & 0xff00))
2586 overflow = true;
2587 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
2588 break;
2589
2590 case R_SH_SWITCH8:
2591 voff += adjust;
2592 if (voff < 0 || voff >= 0xff)
2593 overflow = true;
2594 bfd_put_8 (abfd, voff, contents + nraddr);
2595 break;
2596
2597 case R_SH_SWITCH16:
2598 voff += adjust;
2599 if (voff < - 0x8000 || voff >= 0x8000)
2600 overflow = true;
2601 bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
2602 break;
2603
2604 case R_SH_SWITCH32:
2605 voff += adjust;
2606 bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
2607 break;
2608
2609 case R_SH_USES:
2610 irel->r_addend += adjust;
2611 break;
2612 }
2613
2614 if (overflow)
2615 {
2616 ((*_bfd_error_handler)
2617 (_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
2618 bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
2619 bfd_set_error (bfd_error_bad_value);
2620 return false;
2621 }
2622 }
2623
2624 irel->r_offset = nraddr;
2625 }
2626
2627 /* Look through all the other sections. If there contain any IMM32
2628 relocs against internal symbols which we are not going to adjust
2629 below, we may need to adjust the addends. */
2630 for (o = abfd->sections; o != NULL; o = o->next)
2631 {
2632 Elf_Internal_Rela *internal_relocs;
2633 Elf_Internal_Rela *irelscan, *irelscanend;
2634 bfd_byte *ocontents;
2635
2636 if (o == sec
2637 || (o->flags & SEC_RELOC) == 0
2638 || o->reloc_count == 0)
2639 continue;
2640
2641 /* We always cache the relocs. Perhaps, if info->keep_memory is
2642 false, we should free them, if we are permitted to, when we
2643 leave sh_coff_relax_section. */
2644 internal_relocs = (_bfd_elf32_link_read_relocs
2645 (abfd, o, (PTR) NULL, (Elf_Internal_Rela *) NULL,
2646 true));
2647 if (internal_relocs == NULL)
2648 return false;
2649
2650 ocontents = NULL;
2651 irelscanend = internal_relocs + o->reloc_count;
2652 for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
2653 {
2654 Elf_Internal_Sym sym;
2655
2656 /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
2657 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
2658 {
2659 bfd_vma start, stop;
2660 bfd_signed_vma voff;
2661
2662 if (ocontents == NULL)
2663 {
2664 if (elf_section_data (o)->this_hdr.contents != NULL)
2665 ocontents = elf_section_data (o)->this_hdr.contents;
2666 else
2667 {
2668 /* We always cache the section contents.
2669 Perhaps, if info->keep_memory is false, we
2670 should free them, if we are permitted to,
2671 when we leave sh_coff_relax_section. */
2672 ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
2673 if (ocontents == NULL)
2674 return false;
2675 if (! bfd_get_section_contents (abfd, o, ocontents,
2676 (file_ptr) 0,
2677 o->_raw_size))
2678 return false;
2679 elf_section_data (o)->this_hdr.contents = ocontents;
2680 }
2681 }
2682
2683 stop = irelscan->r_offset;
2684 start
2685 = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
2686
2687 /* STOP is in a different section, so it won't change. */
2688 if (start > addr && start < toaddr)
2689 irelscan->r_addend += count;
2690
2691 voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
2692 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
2693
2694 if (start > addr
2695 && start < toaddr
2696 && (stop <= addr || stop >= toaddr))
2697 bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
2698 ocontents + irelscan->r_offset);
2699 else if (stop > addr
2700 && stop < toaddr
2701 && (start <= addr || start >= toaddr))
2702 bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
2703 ocontents + irelscan->r_offset);
2704 }
2705
2706 if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
2707 continue;
2708
2709 if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
2710 continue;
2711
2712
2713 esym = extsyms + ELF32_R_SYM (irelscan->r_info);
2714 shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irelscan->r_info) : 0);
2715 bfd_elf32_swap_symbol_in (abfd, (const PTR) esym, (const PTR) shndx,
2716 &sym);
2717
2718 if (sym.st_shndx == sec_shndx
2719 && (sym.st_value <= addr
2720 || sym.st_value >= toaddr))
2721 {
2722 bfd_vma val;
2723
2724 if (ocontents == NULL)
2725 {
2726 if (elf_section_data (o)->this_hdr.contents != NULL)
2727 ocontents = elf_section_data (o)->this_hdr.contents;
2728 else
2729 {
2730 /* We always cache the section contents.
2731 Perhaps, if info->keep_memory is false, we
2732 should free them, if we are permitted to,
2733 when we leave sh_coff_relax_section. */
2734 ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
2735 if (ocontents == NULL)
2736 return false;
2737 if (! bfd_get_section_contents (abfd, o, ocontents,
2738 (file_ptr) 0,
2739 o->_raw_size))
2740 return false;
2741 elf_section_data (o)->this_hdr.contents = ocontents;
2742 }
2743 }
2744
2745 val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
2746 val += sym.st_value;
2747 if (val > addr && val < toaddr)
2748 bfd_put_32 (abfd, val - count,
2749 ocontents + irelscan->r_offset);
2750 }
2751 }
2752 }
2753
2754 /* Adjust the local symbols defined in this section. */
2755 shndx = shndx_buf;
2756 esym = extsyms;
2757 esymend = esym + symtab_hdr->sh_info;
2758 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
2759 {
2760 Elf_Internal_Sym isym;
2761 Elf_External_Sym_Shndx dummy;
2762
2763 bfd_elf32_swap_symbol_in (abfd, (const PTR) esym, (const PTR) shndx,
2764 &isym);
2765
2766 if (isym.st_shndx == sec_shndx
2767 && isym.st_value > addr
2768 && isym.st_value < toaddr)
2769 {
2770 isym.st_value -= count;
2771 bfd_elf32_swap_symbol_out (abfd, &isym, (PTR) esym, (PTR) &dummy);
2772 }
2773 }
2774
2775 /* Now adjust the global symbols defined in this section. */
2776 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2777 - symtab_hdr->sh_info);
2778 sym_hashes = elf_sym_hashes (abfd);
2779 end_hashes = sym_hashes + symcount;
2780 for (; sym_hashes < end_hashes; sym_hashes++)
2781 {
2782 struct elf_link_hash_entry *sym_hash = *sym_hashes;
2783 if ((sym_hash->root.type == bfd_link_hash_defined
2784 || sym_hash->root.type == bfd_link_hash_defweak)
2785 && sym_hash->root.u.def.section == sec
2786 && sym_hash->root.u.def.value > addr
2787 && sym_hash->root.u.def.value < toaddr)
2788 {
2789 sym_hash->root.u.def.value -= count;
2790 }
2791 }
2792
2793 /* See if we can move the ALIGN reloc forward. We have adjusted
2794 r_offset for it already. */
2795 if (irelalign != NULL)
2796 {
2797 bfd_vma alignto, alignaddr;
2798
2799 alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
2800 alignaddr = BFD_ALIGN (irelalign->r_offset,
2801 1 << irelalign->r_addend);
2802 if (alignto != alignaddr)
2803 {
2804 /* Tail recursion. */
2805 return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
2806 (int) (alignto - alignaddr));
2807 }
2808 }
2809
2810 return true;
2811 }
2812
2813 /* Look for loads and stores which we can align to four byte
2814 boundaries. This is like sh_align_loads in coff-sh.c. */
2815
2816 static boolean
2817 sh_elf_align_loads (abfd, sec, internal_relocs, contents, pswapped)
2818 bfd *abfd ATTRIBUTE_UNUSED;
2819 asection *sec;
2820 Elf_Internal_Rela *internal_relocs;
2821 bfd_byte *contents ATTRIBUTE_UNUSED;
2822 boolean *pswapped;
2823 {
2824 Elf_Internal_Rela *irel, *irelend;
2825 bfd_vma *labels = NULL;
2826 bfd_vma *label, *label_end;
2827 bfd_size_type amt;
2828
2829 *pswapped = false;
2830
2831 irelend = internal_relocs + sec->reloc_count;
2832
2833 /* Get all the addresses with labels on them. */
2834 amt = sec->reloc_count;
2835 amt *= sizeof (bfd_vma);
2836 labels = (bfd_vma *) bfd_malloc (amt);
2837 if (labels == NULL)
2838 goto error_return;
2839 label_end = labels;
2840 for (irel = internal_relocs; irel < irelend; irel++)
2841 {
2842 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
2843 {
2844 *label_end = irel->r_offset;
2845 ++label_end;
2846 }
2847 }
2848
2849 /* Note that the assembler currently always outputs relocs in
2850 address order. If that ever changes, this code will need to sort
2851 the label values and the relocs. */
2852
2853 label = labels;
2854
2855 for (irel = internal_relocs; irel < irelend; irel++)
2856 {
2857 bfd_vma start, stop;
2858
2859 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
2860 continue;
2861
2862 start = irel->r_offset;
2863
2864 for (irel++; irel < irelend; irel++)
2865 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
2866 break;
2867 if (irel < irelend)
2868 stop = irel->r_offset;
2869 else
2870 stop = sec->_cooked_size;
2871
2872 if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
2873 (PTR) internal_relocs, &label,
2874 label_end, start, stop, pswapped))
2875 goto error_return;
2876 }
2877
2878 free (labels);
2879
2880 return true;
2881
2882 error_return:
2883 if (labels != NULL)
2884 free (labels);
2885 return false;
2886 }
2887
2888 /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
2889
2890 static boolean
2891 sh_elf_swap_insns (abfd, sec, relocs, contents, addr)
2892 bfd *abfd;
2893 asection *sec;
2894 PTR relocs;
2895 bfd_byte *contents;
2896 bfd_vma addr;
2897 {
2898 Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
2899 unsigned short i1, i2;
2900 Elf_Internal_Rela *irel, *irelend;
2901
2902 /* Swap the instructions themselves. */
2903 i1 = bfd_get_16 (abfd, contents + addr);
2904 i2 = bfd_get_16 (abfd, contents + addr + 2);
2905 bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
2906 bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
2907
2908 /* Adjust all reloc addresses. */
2909 irelend = internal_relocs + sec->reloc_count;
2910 for (irel = internal_relocs; irel < irelend; irel++)
2911 {
2912 enum elf_sh_reloc_type type;
2913 int add;
2914
2915 /* There are a few special types of relocs that we don't want to
2916 adjust. These relocs do not apply to the instruction itself,
2917 but are only associated with the address. */
2918 type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
2919 if (type == R_SH_ALIGN
2920 || type == R_SH_CODE
2921 || type == R_SH_DATA
2922 || type == R_SH_LABEL)
2923 continue;
2924
2925 /* If an R_SH_USES reloc points to one of the addresses being
2926 swapped, we must adjust it. It would be incorrect to do this
2927 for a jump, though, since we want to execute both
2928 instructions after the jump. (We have avoided swapping
2929 around a label, so the jump will not wind up executing an
2930 instruction it shouldn't). */
2931 if (type == R_SH_USES)
2932 {
2933 bfd_vma off;
2934
2935 off = irel->r_offset + 4 + irel->r_addend;
2936 if (off == addr)
2937 irel->r_offset += 2;
2938 else if (off == addr + 2)
2939 irel->r_offset -= 2;
2940 }
2941
2942 if (irel->r_offset == addr)
2943 {
2944 irel->r_offset += 2;
2945 add = -2;
2946 }
2947 else if (irel->r_offset == addr + 2)
2948 {
2949 irel->r_offset -= 2;
2950 add = 2;
2951 }
2952 else
2953 add = 0;
2954
2955 if (add != 0)
2956 {
2957 bfd_byte *loc;
2958 unsigned short insn, oinsn;
2959 boolean overflow;
2960
2961 loc = contents + irel->r_offset;
2962 overflow = false;
2963 switch (type)
2964 {
2965 default:
2966 break;
2967
2968 case R_SH_DIR8WPN:
2969 case R_SH_DIR8WPZ:
2970 insn = bfd_get_16 (abfd, loc);
2971 oinsn = insn;
2972 insn += add / 2;
2973 if ((oinsn & 0xff00) != (insn & 0xff00))
2974 overflow = true;
2975 bfd_put_16 (abfd, (bfd_vma) insn, loc);
2976 break;
2977
2978 case R_SH_IND12W:
2979 insn = bfd_get_16 (abfd, loc);
2980 oinsn = insn;
2981 insn += add / 2;
2982 if ((oinsn & 0xf000) != (insn & 0xf000))
2983 overflow = true;
2984 bfd_put_16 (abfd, (bfd_vma) insn, loc);
2985 break;
2986
2987 case R_SH_DIR8WPL:
2988 /* This reloc ignores the least significant 3 bits of
2989 the program counter before adding in the offset.
2990 This means that if ADDR is at an even address, the
2991 swap will not affect the offset. If ADDR is an at an
2992 odd address, then the instruction will be crossing a
2993 four byte boundary, and must be adjusted. */
2994 if ((addr & 3) != 0)
2995 {
2996 insn = bfd_get_16 (abfd, loc);
2997 oinsn = insn;
2998 insn += add / 2;
2999 if ((oinsn & 0xff00) != (insn & 0xff00))
3000 overflow = true;
3001 bfd_put_16 (abfd, (bfd_vma) insn, loc);
3002 }
3003
3004 break;
3005 }
3006
3007 if (overflow)
3008 {
3009 ((*_bfd_error_handler)
3010 (_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
3011 bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
3012 bfd_set_error (bfd_error_bad_value);
3013 return false;
3014 }
3015 }
3016 }
3017
3018 return true;
3019 }
3020 \f
3021 #ifdef INCLUDE_SHMEDIA
3022
3023 /* The size in bytes of an entry in the procedure linkage table. */
3024
3025 #define PLT_ENTRY_SIZE 64
3026
3027 /* First entry in an absolute procedure linkage table look like this. */
3028
3029 static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
3030 {
3031 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 16, r17 */
3032 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
3033 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
3034 0x6b, 0xf1, 0x46, 0x00, /* ptabs r17, tr0 */
3035 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
3036 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3037 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3038 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3039 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3040 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3041 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3042 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3043 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3044 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3045 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3046 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3047 };
3048
3049 static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
3050 {
3051 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
3052 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
3053 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
3054 0x00, 0x46, 0xf1, 0x6b, /* ptabs r17, tr0 */
3055 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
3056 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3057 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3058 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3059 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3060 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3061 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3062 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3063 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3064 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3065 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3066 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3067 };
3068
3069 /* Sebsequent entries in an absolute procedure linkage table look like
3070 this. */
3071
3072 static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
3073 {
3074 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 16, r25 */
3075 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
3076 0x89, 0x90, 0x01, 0x90, /* ld.l r25, 0, r25 */
3077 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3078 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3079 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3080 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3081 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3082 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */
3083 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */
3084 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3085 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3086 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3087 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3088 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3089 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3090 };
3091
3092 static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
3093 {
3094 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
3095 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3096 0x90, 0x01, 0x90, 0x89, /* ld.l r25, 0, r25 */
3097 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3098 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3099 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3100 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3101 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3102 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */
3103 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */
3104 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3105 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3106 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3107 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3108 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3109 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3110 };
3111
3112 /* Entries in a PIC procedure linkage table look like this. */
3113
3114 static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3115 {
3116 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
3117 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
3118 0x40, 0xc2, 0x65, 0x90, /* ldx.l r12, r25, r25 */
3119 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3120 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3121 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3122 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3123 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3124 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3125 0x00, 0xca, 0x45, 0x10, /* sub.l r12, r17, r17 */
3126 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
3127 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3128 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
3129 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3130 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3131 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3132 };
3133
3134 static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3135 {
3136 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3137 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3138 0x90, 0x65, 0xc2, 0x40, /* ldx.l r12, r25, r25 */
3139 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3140 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3141 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3142 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3143 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3144 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3145 0x10, 0x45, 0xca, 0x00, /* sub.l r12, r17, r17 */
3146 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
3147 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3148 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
3149 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3150 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3151 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3152 };
3153
3154 static const bfd_byte *elf_sh_plt0_entry;
3155 static const bfd_byte *elf_sh_plt_entry;
3156 static const bfd_byte *elf_sh_pic_plt_entry;
3157
3158 /* Return size of a PLT entry. */
3159 #define elf_sh_sizeof_plt(info) PLT_ENTRY_SIZE
3160
3161 /* Return offset of the PLT0 address in an absolute PLT entry. */
3162 #define elf_sh_plt_plt0_offset(info) 32
3163
3164 /* Return offset of the linker in PLT0 entry. */
3165 #define elf_sh_plt0_gotplt_offset(info) 0
3166
3167 /* Return offset of the trampoline in PLT entry */
3168 #define elf_sh_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
3169
3170 /* Return offset of the symbol in PLT entry. */
3171 #define elf_sh_plt_symbol_offset(info) 0
3172
3173 /* Return offset of the relocation in PLT entry. */
3174 #define elf_sh_plt_reloc_offset(info) (info->shared ? 52 : 44)
3175
3176 inline static void
3177 movi_shori_putval (output_bfd, value, addr)
3178 bfd *output_bfd;
3179 unsigned long value;
3180 char *addr;
3181 {
3182 bfd_put_32 (output_bfd,
3183 bfd_get_32 (output_bfd, addr)
3184 | ((value >> 6) & 0x3fffc00),
3185 addr);
3186 bfd_put_32 (output_bfd,
3187 bfd_get_32 (output_bfd, addr + 4)
3188 | ((value << 10) & 0x3fffc00),
3189 addr + 4);
3190 }
3191
3192 #else
3193 /* The size in bytes of an entry in the procedure linkage table. */
3194
3195 #define PLT_ENTRY_SIZE 28
3196
3197 /* First entry in an absolute procedure linkage table look like this. */
3198
3199 #if 1
3200 /* Note - this code has been "optimised" not to use r2. r2 is used by
3201 GCC to return the address of large strutcures, so it should not be
3202 corrupted here. This does mean however, that this PLT does not conform
3203 to the SH PIC ABI. That spec says that r0 contains the type of the PLT
3204 and r2 contains the GOT id. This version stores the GOT id in r0 and
3205 ignores the type. Loaders can easily detect this difference however,
3206 since the type will always be 0 or 8, and the GOT ids will always be
3207 greater than or equal to 12. */
3208 static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
3209 {
3210 0xd0, 0x05, /* mov.l 2f,r0 */
3211 0x60, 0x02, /* mov.l @r0,r0 */
3212 0x2f, 0x06, /* mov.l r0,@-r15 */
3213 0xd0, 0x03, /* mov.l 1f,r0 */
3214 0x60, 0x02, /* mov.l @r0,r0 */
3215 0x40, 0x2b, /* jmp @r0 */
3216 0x60, 0xf6, /* mov.l @r15+,r0 */
3217 0x00, 0x09, /* nop */
3218 0x00, 0x09, /* nop */
3219 0x00, 0x09, /* nop */
3220 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
3221 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
3222 };
3223
3224 static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
3225 {
3226 0x05, 0xd0, /* mov.l 2f,r0 */
3227 0x02, 0x60, /* mov.l @r0,r0 */
3228 0x06, 0x2f, /* mov.l r0,@-r15 */
3229 0x03, 0xd0, /* mov.l 1f,r0 */
3230 0x02, 0x60, /* mov.l @r0,r0 */
3231 0x2b, 0x40, /* jmp @r0 */
3232 0xf6, 0x60, /* mov.l @r15+,r0 */
3233 0x09, 0x00, /* nop */
3234 0x09, 0x00, /* nop */
3235 0x09, 0x00, /* nop */
3236 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
3237 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
3238 };
3239
3240 /* Sebsequent entries in an absolute procedure linkage table look like
3241 this. */
3242
3243 static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
3244 {
3245 0xd0, 0x04, /* mov.l 1f,r0 */
3246 0x60, 0x02, /* mov.l @r0,r0 */
3247 0xd1, 0x02, /* mov.l 0f,r1 */
3248 0x40, 0x2b, /* jmp @r0 */
3249 0x60, 0x13, /* mov r1,r0 */
3250 0xd1, 0x03, /* mov.l 2f,r1 */
3251 0x40, 0x2b, /* jmp @r0 */
3252 0x00, 0x09, /* nop */
3253 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
3254 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3255 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
3256 };
3257
3258 static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
3259 {
3260 0x04, 0xd0, /* mov.l 1f,r0 */
3261 0x02, 0x60, /* mov.l @r0,r0 */
3262 0x02, 0xd1, /* mov.l 0f,r1 */
3263 0x2b, 0x40, /* jmp @r0 */
3264 0x13, 0x60, /* mov r1,r0 */
3265 0x03, 0xd1, /* mov.l 2f,r1 */
3266 0x2b, 0x40, /* jmp @r0 */
3267 0x09, 0x00, /* nop */
3268 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
3269 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3270 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
3271 };
3272
3273 /* Entries in a PIC procedure linkage table look like this. */
3274
3275 static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3276 {
3277 0xd0, 0x04, /* mov.l 1f,r0 */
3278 0x00, 0xce, /* mov.l @(r0,r12),r0 */
3279 0x40, 0x2b, /* jmp @r0 */
3280 0x00, 0x09, /* nop */
3281 0x50, 0xc2, /* mov.l @(8,r12),r0 */
3282 0xd1, 0x03, /* mov.l 2f,r1 */
3283 0x40, 0x2b, /* jmp @r0 */
3284 0x50, 0xc1, /* mov.l @(4,r12),r0 */
3285 0x00, 0x09, /* nop */
3286 0x00, 0x09, /* nop */
3287 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3288 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
3289 };
3290
3291 static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3292 {
3293 0x04, 0xd0, /* mov.l 1f,r0 */
3294 0xce, 0x00, /* mov.l @(r0,r12),r0 */
3295 0x2b, 0x40, /* jmp @r0 */
3296 0x09, 0x00, /* nop */
3297 0xc2, 0x50, /* mov.l @(8,r12),r0 */
3298 0x03, 0xd1, /* mov.l 2f,r1 */
3299 0x2b, 0x40, /* jmp @r0 */
3300 0xc1, 0x50, /* mov.l @(4,r12),r0 */
3301 0x09, 0x00, /* nop */
3302 0x09, 0x00, /* nop */
3303 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3304 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
3305 };
3306
3307 #else /* These are the old style PLT entries. */
3308 static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
3309 {
3310 0xd0, 0x04, /* mov.l 1f,r0 */
3311 0xd2, 0x05, /* mov.l 2f,r2 */
3312 0x60, 0x02, /* mov.l @r0,r0 */
3313 0x62, 0x22, /* mov.l @r2,r2 */
3314 0x40, 0x2b, /* jmp @r0 */
3315 0xe0, 0x00, /* mov #0,r0 */
3316 0x00, 0x09, /* nop */
3317 0x00, 0x09, /* nop */
3318 0x00, 0x09, /* nop */
3319 0x00, 0x09, /* nop */
3320 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
3321 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
3322 };
3323
3324 static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
3325 {
3326 0x04, 0xd0, /* mov.l 1f,r0 */
3327 0x05, 0xd2, /* mov.l 2f,r2 */
3328 0x02, 0x60, /* mov.l @r0,r0 */
3329 0x22, 0x62, /* mov.l @r2,r2 */
3330 0x2b, 0x40, /* jmp @r0 */
3331 0x00, 0xe0, /* mov #0,r0 */
3332 0x09, 0x00, /* nop */
3333 0x09, 0x00, /* nop */
3334 0x09, 0x00, /* nop */
3335 0x09, 0x00, /* nop */
3336 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
3337 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
3338 };
3339
3340 /* Sebsequent entries in an absolute procedure linkage table look like
3341 this. */
3342
3343 static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
3344 {
3345 0xd0, 0x04, /* mov.l 1f,r0 */
3346 0x60, 0x02, /* mov.l @r0,r0 */
3347 0xd2, 0x02, /* mov.l 0f,r2 */
3348 0x40, 0x2b, /* jmp @r0 */
3349 0x60, 0x23, /* mov r2,r0 */
3350 0xd1, 0x03, /* mov.l 2f,r1 */
3351 0x40, 0x2b, /* jmp @r0 */
3352 0x00, 0x09, /* nop */
3353 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
3354 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3355 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
3356 };
3357
3358 static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
3359 {
3360 0x04, 0xd0, /* mov.l 1f,r0 */
3361 0x02, 0x60, /* mov.l @r0,r0 */
3362 0x02, 0xd2, /* mov.l 0f,r2 */
3363 0x2b, 0x40, /* jmp @r0 */
3364 0x23, 0x60, /* mov r2,r0 */
3365 0x03, 0xd1, /* mov.l 2f,r1 */
3366 0x2b, 0x40, /* jmp @r0 */
3367 0x09, 0x00, /* nop */
3368 0, 0, 0, 0, /* 0: replaced with address of .PLT. */
3369 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3370 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
3371 };
3372
3373 /* Entries in a PIC procedure linkage table look like this. */
3374
3375 static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3376 {
3377 0xd0, 0x04, /* mov.l 1f,r0 */
3378 0x00, 0xce, /* mov.l @(r0,r12),r0 */
3379 0x40, 0x2b, /* jmp @r0 */
3380 0x00, 0x09, /* nop */
3381 0x50, 0xc2, /* 0: mov.l @(8,r12),r0 */
3382 0x52, 0xc1, /* 1: mov.l @(4,r12),r2 */
3383 0xd1, 0x02, /* mov.l 2f,r1 */
3384 0x40, 0x2b, /* jmp @r0 */
3385 0xe0, 0x00, /* mov #0,r0 ! shows the type of PLT. */
3386 0x00, 0x09, /* nop */
3387 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3388 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
3389 };
3390
3391 static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3392 {
3393 0x04, 0xd0, /* mov.l 1f,r0 */
3394 0xce, 0x00, /* mov.l @(r0,r12),r0 */
3395 0x2b, 0x40, /* jmp @r0 */
3396 0x09, 0x00, /* nop */
3397 0xc2, 0x50, /* 0: mov.l @(8,r12),r0 */
3398 0xc1, 0x52, /* 1: mov.l @(4,r12),r2 */
3399 0x02, 0xd1, /* mov.l 2f,r1 */
3400 0x2b, 0x40, /* jmp @r0 */
3401 0x00, 0xe0, /* mov #0,r0 ! shows the type of PLT. */
3402 0x09, 0x00, /* nop */
3403 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
3404 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
3405 };
3406 #endif /* old style PLT entries. */
3407
3408 static const bfd_byte *elf_sh_plt0_entry;
3409 static const bfd_byte *elf_sh_plt_entry;
3410 static const bfd_byte *elf_sh_pic_plt_entry;
3411
3412 /* Return size of a PLT entry. */
3413 #define elf_sh_sizeof_plt(info) PLT_ENTRY_SIZE
3414
3415 /* Return offset of the PLT0 address in an absolute PLT entry. */
3416 #define elf_sh_plt_plt0_offset(info) 16
3417
3418 /* Return offset of the linker in PLT0 entry. */
3419 #define elf_sh_plt0_linker_offset(info) 20
3420
3421 /* Return offset of the GOT id in PLT0 entry. */
3422 #define elf_sh_plt0_gotid_offset(info) 24
3423
3424 /* Return offset of the tempoline in PLT entry */
3425 #define elf_sh_plt_temp_offset(info) 8
3426
3427 /* Return offset of the symbol in PLT entry. */
3428 #define elf_sh_plt_symbol_offset(info) 20
3429
3430 /* Return offset of the relocation in PLT entry. */
3431 #define elf_sh_plt_reloc_offset(info) 24
3432 #endif
3433
3434 /* The sh linker needs to keep track of the number of relocs that it
3435 decides to copy in check_relocs for each symbol. This is so that
3436 it can discard PC relative relocs if it doesn't need them when
3437 linking with -Bsymbolic. We store the information in a field
3438 extending the regular ELF linker hash table. */
3439
3440 /* This structure keeps track of the number of PC relative relocs we
3441 have copied for a given symbol. */
3442
3443 struct elf_sh_pcrel_relocs_copied
3444 {
3445 /* Next section. */
3446 struct elf_sh_pcrel_relocs_copied *next;
3447 /* A section in dynobj. */
3448 asection *section;
3449 /* Number of relocs copied in this section. */
3450 bfd_size_type count;
3451 };
3452
3453 /* sh ELF linker hash entry. */
3454
3455 struct elf_sh_link_hash_entry
3456 {
3457 struct elf_link_hash_entry root;
3458
3459 #ifdef INCLUDE_SHMEDIA
3460 bfd_vma datalabel_got_offset;
3461 #endif
3462
3463 /* Number of PC relative relocs copied for this symbol. */
3464 struct elf_sh_pcrel_relocs_copied *pcrel_relocs_copied;
3465 };
3466
3467 /* sh ELF linker hash table. */
3468
3469 struct elf_sh_link_hash_table
3470 {
3471 struct elf_link_hash_table root;
3472 };
3473
3474 /* Declare this now that the above structures are defined. */
3475
3476 static boolean sh_elf_discard_copies
3477 PARAMS ((struct elf_sh_link_hash_entry *, PTR));
3478
3479 /* Traverse an sh ELF linker hash table. */
3480
3481 #define sh_elf_link_hash_traverse(table, func, info) \
3482 (elf_link_hash_traverse \
3483 (&(table)->root, \
3484 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
3485 (info)))
3486
3487 /* Get the sh ELF linker hash table from a link_info structure. */
3488
3489 #define sh_elf_hash_table(p) \
3490 ((struct elf_sh_link_hash_table *) ((p)->hash))
3491
3492 /* Create an entry in an sh ELF linker hash table. */
3493
3494 static struct bfd_hash_entry *
3495 sh_elf_link_hash_newfunc (entry, table, string)
3496 struct bfd_hash_entry *entry;
3497 struct bfd_hash_table *table;
3498 const char *string;
3499 {
3500 struct elf_sh_link_hash_entry *ret =
3501 (struct elf_sh_link_hash_entry *) entry;
3502
3503 /* Allocate the structure if it has not already been allocated by a
3504 subclass. */
3505 if (ret == (struct elf_sh_link_hash_entry *) NULL)
3506 ret = ((struct elf_sh_link_hash_entry *)
3507 bfd_hash_allocate (table,
3508 sizeof (struct elf_sh_link_hash_entry)));
3509 if (ret == (struct elf_sh_link_hash_entry *) NULL)
3510 return (struct bfd_hash_entry *) ret;
3511
3512 /* Call the allocation method of the superclass. */
3513 ret = ((struct elf_sh_link_hash_entry *)
3514 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3515 table, string));
3516 if (ret != (struct elf_sh_link_hash_entry *) NULL)
3517 {
3518 ret->pcrel_relocs_copied = NULL;
3519 #ifdef INCLUDE_SHMEDIA
3520 ret->datalabel_got_offset = (bfd_vma) -1;
3521 #endif
3522 }
3523
3524 return (struct bfd_hash_entry *) ret;
3525 }
3526
3527 /* Create an sh ELF linker hash table. */
3528
3529 static struct bfd_link_hash_table *
3530 sh_elf_link_hash_table_create (abfd)
3531 bfd *abfd;
3532 {
3533 struct elf_sh_link_hash_table *ret;
3534 bfd_size_type amt = sizeof (struct elf_sh_link_hash_table);
3535
3536 ret = (struct elf_sh_link_hash_table *) bfd_malloc (amt);
3537 if (ret == (struct elf_sh_link_hash_table *) NULL)
3538 return NULL;
3539
3540 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
3541 sh_elf_link_hash_newfunc))
3542 {
3543 free (ret);
3544 return NULL;
3545 }
3546
3547 return &ret->root.root;
3548 }
3549
3550 /* Create dynamic sections when linking against a dynamic object. */
3551
3552 static boolean
3553 sh_elf_create_dynamic_sections (abfd, info)
3554 bfd *abfd;
3555 struct bfd_link_info *info;
3556 {
3557 flagword flags, pltflags;
3558 register asection *s;
3559 struct elf_backend_data *bed = get_elf_backend_data (abfd);
3560 int ptralign = 0;
3561
3562 switch (bed->s->arch_size)
3563 {
3564 case 32:
3565 ptralign = 2;
3566 break;
3567
3568 case 64:
3569 ptralign = 3;
3570 break;
3571
3572 default:
3573 bfd_set_error (bfd_error_bad_value);
3574 return false;
3575 }
3576
3577 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3578 .rel[a].bss sections. */
3579
3580 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3581 | SEC_LINKER_CREATED);
3582
3583 pltflags = flags;
3584 pltflags |= SEC_CODE;
3585 if (bed->plt_not_loaded)
3586 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3587 if (bed->plt_readonly)
3588 pltflags |= SEC_READONLY;
3589
3590 s = bfd_make_section (abfd, ".plt");
3591 if (s == NULL
3592 || ! bfd_set_section_flags (abfd, s, pltflags)
3593 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3594 return false;
3595
3596 if (bed->want_plt_sym)
3597 {
3598 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3599 .plt section. */
3600 struct elf_link_hash_entry *h = NULL;
3601 if (! (_bfd_generic_link_add_one_symbol
3602 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3603 (bfd_vma) 0, (const char *) NULL, false,
3604 get_elf_backend_data (abfd)->collect,
3605 (struct bfd_link_hash_entry **) &h)))
3606 return false;
3607 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
3608 h->type = STT_OBJECT;
3609
3610 if (info->shared
3611 && ! _bfd_elf_link_record_dynamic_symbol (info, h))
3612 return false;
3613 }
3614
3615 s = bfd_make_section (abfd,
3616 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
3617 if (s == NULL
3618 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3619 || ! bfd_set_section_alignment (abfd, s, ptralign))
3620 return false;
3621
3622 if (! _bfd_elf_create_got_section (abfd, info))
3623 return false;
3624
3625 {
3626 const char *secname;
3627 char *relname;
3628 flagword secflags;
3629 asection *sec;
3630
3631 for (sec = abfd->sections; sec; sec = sec->next)
3632 {
3633 secflags = bfd_get_section_flags (abfd, sec);
3634 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
3635 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
3636 continue;
3637 secname = bfd_get_section_name (abfd, sec);
3638 relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6);
3639 strcpy (relname, ".rela");
3640 strcat (relname, secname);
3641 s = bfd_make_section (abfd, relname);
3642 if (s == NULL
3643 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3644 || ! bfd_set_section_alignment (abfd, s, ptralign))
3645 return false;
3646 }
3647 }
3648
3649 if (bed->want_dynbss)
3650 {
3651 /* The .dynbss section is a place to put symbols which are defined
3652 by dynamic objects, are referenced by regular objects, and are
3653 not functions. We must allocate space for them in the process
3654 image and use a R_*_COPY reloc to tell the dynamic linker to
3655 initialize them at run time. The linker script puts the .dynbss
3656 section into the .bss section of the final image. */
3657 s = bfd_make_section (abfd, ".dynbss");
3658 if (s == NULL
3659 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
3660 return false;
3661
3662 /* The .rel[a].bss section holds copy relocs. This section is not
3663 normally needed. We need to create it here, though, so that the
3664 linker will map it to an output section. We can't just create it
3665 only if we need it, because we will not know whether we need it
3666 until we have seen all the input files, and the first time the
3667 main linker code calls BFD after examining all the input files
3668 (size_dynamic_sections) the input sections have already been
3669 mapped to the output sections. If the section turns out not to
3670 be needed, we can discard it later. We will never need this
3671 section when generating a shared object, since they do not use
3672 copy relocs. */
3673 if (! info->shared)
3674 {
3675 s = bfd_make_section (abfd,
3676 (bed->default_use_rela_p
3677 ? ".rela.bss" : ".rel.bss"));
3678 if (s == NULL
3679 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3680 || ! bfd_set_section_alignment (abfd, s, ptralign))
3681 return false;
3682 }
3683 }
3684
3685 return true;
3686 }
3687 \f
3688 /* Adjust a symbol defined by a dynamic object and referenced by a
3689 regular object. The current definition is in some section of the
3690 dynamic object, but we're not including those sections. We have to
3691 change the definition to something the rest of the link can
3692 understand. */
3693
3694 static boolean
3695 sh_elf_adjust_dynamic_symbol (info, h)
3696 struct bfd_link_info *info;
3697 struct elf_link_hash_entry *h;
3698 {
3699 bfd *dynobj;
3700 asection *s;
3701 unsigned int power_of_two;
3702
3703 dynobj = elf_hash_table (info)->dynobj;
3704
3705 /* Make sure we know what is going on here. */
3706 BFD_ASSERT (dynobj != NULL
3707 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
3708 || h->weakdef != NULL
3709 || ((h->elf_link_hash_flags
3710 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
3711 && (h->elf_link_hash_flags
3712 & ELF_LINK_HASH_REF_REGULAR) != 0
3713 && (h->elf_link_hash_flags
3714 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
3715
3716 /* If this is a function, put it in the procedure linkage table. We
3717 will fill in the contents of the procedure linkage table later,
3718 when we know the address of the .got section. */
3719 if (h->type == STT_FUNC
3720 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
3721 {
3722 if (! info->shared
3723 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
3724 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
3725 {
3726 /* This case can occur if we saw a PLT reloc in an input
3727 file, but the symbol was never referred to by a dynamic
3728 object. In such a case, we don't actually need to build
3729 a procedure linkage table, and we can just do a REL32
3730 reloc instead. */
3731 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
3732 return true;
3733 }
3734
3735 /* Make sure this symbol is output as a dynamic symbol. */
3736 if (h->dynindx == -1)
3737 {
3738 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
3739 return false;
3740 }
3741
3742 s = bfd_get_section_by_name (dynobj, ".plt");
3743 BFD_ASSERT (s != NULL);
3744
3745 /* If this is the first .plt entry, make room for the special
3746 first entry. */
3747 if (s->_raw_size == 0)
3748 s->_raw_size += PLT_ENTRY_SIZE;
3749
3750 /* If this symbol is not defined in a regular file, and we are
3751 not generating a shared library, then set the symbol to this
3752 location in the .plt. This is required to make function
3753 pointers compare as equal between the normal executable and
3754 the shared library. */
3755 if (! info->shared
3756 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3757 {
3758 h->root.u.def.section = s;
3759 h->root.u.def.value = s->_raw_size;
3760 }
3761
3762 h->plt.offset = s->_raw_size;
3763
3764 /* Make room for this entry. */
3765 s->_raw_size += elf_sh_sizeof_plt (info);
3766
3767 /* We also need to make an entry in the .got.plt section, which
3768 will be placed in the .got section by the linker script. */
3769
3770 s = bfd_get_section_by_name (dynobj, ".got.plt");
3771 BFD_ASSERT (s != NULL);
3772 s->_raw_size += 4;
3773
3774 /* We also need to make an entry in the .rela.plt section. */
3775
3776 s = bfd_get_section_by_name (dynobj, ".rela.plt");
3777 BFD_ASSERT (s != NULL);
3778 s->_raw_size += sizeof (Elf32_External_Rela);
3779
3780 return true;
3781 }
3782
3783 /* If this is a weak symbol, and there is a real definition, the
3784 processor independent code will have arranged for us to see the
3785 real definition first, and we can just use the same value. */
3786 if (h->weakdef != NULL)
3787 {
3788 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
3789 || h->weakdef->root.type == bfd_link_hash_defweak);
3790 h->root.u.def.section = h->weakdef->root.u.def.section;
3791 h->root.u.def.value = h->weakdef->root.u.def.value;
3792 return true;
3793 }
3794
3795 /* This is a reference to a symbol defined by a dynamic object which
3796 is not a function. */
3797
3798 /* If we are creating a shared library, we must presume that the
3799 only references to the symbol are via the global offset table.
3800 For such cases we need not do anything here; the relocations will
3801 be handled correctly by relocate_section. */
3802 if (info->shared)
3803 return true;
3804
3805 /* If there are no references to this symbol that do not use the
3806 GOT, we don't need to generate a copy reloc. */
3807 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
3808 return true;
3809
3810 /* We must allocate the symbol in our .dynbss section, which will
3811 become part of the .bss section of the executable. There will be
3812 an entry for this symbol in the .dynsym section. The dynamic
3813 object will contain position independent code, so all references
3814 from the dynamic object to this symbol will go through the global
3815 offset table. The dynamic linker will use the .dynsym entry to
3816 determine the address it must put in the global offset table, so
3817 both the dynamic object and the regular object will refer to the
3818 same memory location for the variable. */
3819
3820 s = bfd_get_section_by_name (dynobj, ".dynbss");
3821 BFD_ASSERT (s != NULL);
3822
3823 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3824 copy the initial value out of the dynamic object and into the
3825 runtime process image. We need to remember the offset into the
3826 .rela.bss section we are going to use. */
3827 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3828 {
3829 asection *srel;
3830
3831 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
3832 BFD_ASSERT (srel != NULL);
3833 srel->_raw_size += sizeof (Elf32_External_Rela);
3834 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
3835 }
3836
3837 /* We need to figure out the alignment required for this symbol. I
3838 have no idea how ELF linkers handle this. */
3839 power_of_two = bfd_log2 (h->size);
3840 if (power_of_two > 3)
3841 power_of_two = 3;
3842
3843 /* Apply the required alignment. */
3844 s->_raw_size = BFD_ALIGN (s->_raw_size,
3845 (bfd_size_type) (1 << power_of_two));
3846 if (power_of_two > bfd_get_section_alignment (dynobj, s))
3847 {
3848 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
3849 return false;
3850 }
3851
3852 /* Define the symbol as being at this point in the section. */
3853 h->root.u.def.section = s;
3854 h->root.u.def.value = s->_raw_size;
3855
3856 /* Increment the section size to make room for the symbol. */
3857 s->_raw_size += h->size;
3858
3859 return true;
3860 }
3861
3862 /* Set the sizes of the dynamic sections. */
3863
3864 static boolean
3865 sh_elf_size_dynamic_sections (output_bfd, info)
3866 bfd *output_bfd ATTRIBUTE_UNUSED;
3867 struct bfd_link_info *info;
3868 {
3869 bfd *dynobj;
3870 asection *s;
3871 boolean plt;
3872 boolean relocs;
3873
3874 dynobj = elf_hash_table (info)->dynobj;
3875 BFD_ASSERT (dynobj != NULL);
3876
3877 if (elf_hash_table (info)->dynamic_sections_created)
3878 {
3879 /* Set the contents of the .interp section to the interpreter. */
3880 if (! info->shared)
3881 {
3882 s = bfd_get_section_by_name (dynobj, ".interp");
3883 BFD_ASSERT (s != NULL);
3884 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
3885 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3886 }
3887 }
3888 else
3889 {
3890 /* We may have created entries in the .rela.got section.
3891 However, if we are not creating the dynamic sections, we will
3892 not actually use these entries. Reset the size of .rela.got,
3893 which will cause it to get stripped from the output file
3894 below. */
3895 s = bfd_get_section_by_name (dynobj, ".rela.got");
3896 if (s != NULL)
3897 s->_raw_size = 0;
3898 }
3899
3900 /* If this is a -Bsymbolic shared link, then we need to discard all
3901 PC relative relocs against symbols defined in a regular object.
3902 We allocated space for them in the check_relocs routine, but we
3903 will not fill them in in the relocate_section routine. */
3904 if (info->shared && info->symbolic)
3905 sh_elf_link_hash_traverse (sh_elf_hash_table (info),
3906 sh_elf_discard_copies,
3907 (PTR) NULL);
3908
3909 /* The check_relocs and adjust_dynamic_symbol entry points have
3910 determined the sizes of the various dynamic sections. Allocate
3911 memory for them. */
3912 plt = false;
3913 relocs = false;
3914 for (s = dynobj->sections; s != NULL; s = s->next)
3915 {
3916 const char *name;
3917 boolean strip;
3918
3919 if ((s->flags & SEC_LINKER_CREATED) == 0)
3920 continue;
3921
3922 /* It's OK to base decisions on the section name, because none
3923 of the dynobj section names depend upon the input files. */
3924 name = bfd_get_section_name (dynobj, s);
3925
3926 strip = false;
3927
3928 if (strcmp (name, ".plt") == 0)
3929 {
3930 if (s->_raw_size == 0)
3931 {
3932 /* Strip this section if we don't need it; see the
3933 comment below. */
3934 strip = true;
3935 }
3936 else
3937 {
3938 /* Remember whether there is a PLT. */
3939 plt = true;
3940 }
3941 }
3942 else if (strncmp (name, ".rela", 5) == 0)
3943 {
3944 if (s->_raw_size == 0)
3945 {
3946 /* If we don't need this section, strip it from the
3947 output file. This is mostly to handle .rela.bss and
3948 .rela.plt. We must create both sections in
3949 create_dynamic_sections, because they must be created
3950 before the linker maps input sections to output
3951 sections. The linker does that before
3952 adjust_dynamic_symbol is called, and it is that
3953 function which decides whether anything needs to go
3954 into these sections. */
3955 strip = true;
3956 }
3957 else
3958 {
3959 /* Remember whether there are any reloc sections other
3960 than .rela.plt. */
3961 if (strcmp (name, ".rela.plt") != 0)
3962 relocs = true;
3963
3964 /* We use the reloc_count field as a counter if we need
3965 to copy relocs into the output file. */
3966 s->reloc_count = 0;
3967 }
3968 }
3969 else if (strncmp (name, ".got", 4) != 0)
3970 {
3971 /* It's not one of our sections, so don't allocate space. */
3972 continue;
3973 }
3974
3975 if (strip)
3976 {
3977 _bfd_strip_section_from_output (info, s);
3978 continue;
3979 }
3980
3981 /* Allocate memory for the section contents. */
3982 s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
3983 if (s->contents == NULL && s->_raw_size != 0)
3984 return false;
3985 }
3986
3987 if (elf_hash_table (info)->dynamic_sections_created)
3988 {
3989 /* Add some entries to the .dynamic section. We fill in the
3990 values later, in sh_elf_finish_dynamic_sections, but we
3991 must add the entries now so that we get the correct size for
3992 the .dynamic section. The DT_DEBUG entry is filled in by the
3993 dynamic linker and used by the debugger. */
3994 #define add_dynamic_entry(TAG, VAL) \
3995 bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
3996
3997 if (! info->shared)
3998 {
3999 if (!add_dynamic_entry (DT_DEBUG, 0))
4000 return false;
4001 }
4002
4003 if (plt)
4004 {
4005 if (!add_dynamic_entry (DT_PLTGOT, 0)
4006 || !add_dynamic_entry (DT_PLTRELSZ, 0)
4007 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
4008 || !add_dynamic_entry (DT_JMPREL, 0))
4009 return false;
4010 }
4011
4012 if (relocs)
4013 {
4014 if (!add_dynamic_entry (DT_RELA, 0)
4015 || !add_dynamic_entry (DT_RELASZ, 0)
4016 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
4017 return false;
4018 }
4019
4020 if ((info->flags & DF_TEXTREL) != 0)
4021 {
4022 if (!add_dynamic_entry (DT_TEXTREL, 0))
4023 return false;
4024 }
4025 }
4026 #undef add_dynamic_entry
4027
4028 return true;
4029 }
4030
4031 /* This function is called via sh_elf_link_hash_traverse if we are
4032 creating a shared object with -Bsymbolic. It discards the space
4033 allocated to copy PC relative relocs against symbols which are
4034 defined in regular objects. We allocated space for them in the
4035 check_relocs routine, but we won't fill them in in the
4036 relocate_section routine. */
4037
4038 static boolean
4039 sh_elf_discard_copies (h, ignore)
4040 struct elf_sh_link_hash_entry *h;
4041 PTR ignore ATTRIBUTE_UNUSED;
4042 {
4043 struct elf_sh_pcrel_relocs_copied *s;
4044
4045 if (h->root.root.type == bfd_link_hash_warning)
4046 h = (struct elf_sh_link_hash_entry *) h->root.root.u.i.link;
4047
4048 /* We only discard relocs for symbols defined in a regular object. */
4049 if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
4050 return true;
4051
4052 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
4053 s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela);
4054
4055 return true;
4056 }
4057 \f
4058 /* Relocate an SH ELF section. */
4059
4060 static boolean
4061 sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
4062 contents, relocs, local_syms, local_sections)
4063 bfd *output_bfd;
4064 struct bfd_link_info *info;
4065 bfd *input_bfd;
4066 asection *input_section;
4067 bfd_byte *contents;
4068 Elf_Internal_Rela *relocs;
4069 Elf_Internal_Sym *local_syms;
4070 asection **local_sections;
4071 {
4072 Elf_Internal_Shdr *symtab_hdr;
4073 struct elf_link_hash_entry **sym_hashes;
4074 Elf_Internal_Rela *rel, *relend;
4075 bfd *dynobj;
4076 bfd_vma *local_got_offsets;
4077 asection *sgot;
4078 asection *sgotplt;
4079 asection *splt;
4080 asection *sreloc;
4081
4082 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
4083 sym_hashes = elf_sym_hashes (input_bfd);
4084 dynobj = elf_hash_table (info)->dynobj;
4085 local_got_offsets = elf_local_got_offsets (input_bfd);
4086
4087 sgot = NULL;
4088 sgotplt = NULL;
4089 splt = NULL;
4090 sreloc = NULL;
4091
4092 rel = relocs;
4093 relend = relocs + input_section->reloc_count;
4094 for (; rel < relend; rel++)
4095 {
4096 int r_type;
4097 reloc_howto_type *howto;
4098 unsigned long r_symndx;
4099 Elf_Internal_Sym *sym;
4100 asection *sec;
4101 struct elf_link_hash_entry *h;
4102 bfd_vma relocation;
4103 bfd_vma addend = (bfd_vma) 0;
4104 bfd_reloc_status_type r;
4105 int seen_stt_datalabel = 0;
4106
4107 r_symndx = ELF32_R_SYM (rel->r_info);
4108
4109 r_type = ELF32_R_TYPE (rel->r_info);
4110
4111 /* Many of the relocs are only used for relaxing, and are
4112 handled entirely by the relaxation code. */
4113 if (r_type > (int) R_SH_LAST_INVALID_RELOC
4114 && r_type < (int) R_SH_LOOP_START)
4115 continue;
4116 if (r_type == (int) R_SH_NONE)
4117 continue;
4118
4119 if (r_type < 0
4120 || r_type >= R_SH_max
4121 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
4122 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
4123 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
4124 && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
4125 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
4126 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
4127 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
4128 && r_type <= (int) R_SH_LAST_INVALID_RELOC_2))
4129 {
4130 bfd_set_error (bfd_error_bad_value);
4131 return false;
4132 }
4133
4134 howto = sh_elf_howto_table + r_type;
4135
4136 /* For relocs that aren't partial_inplace, we get the addend from
4137 the relocation. */
4138 if (! howto->partial_inplace)
4139 addend = rel->r_addend;
4140
4141 h = NULL;
4142 sym = NULL;
4143 sec = NULL;
4144 if (r_symndx < symtab_hdr->sh_info)
4145 {
4146 sym = local_syms + r_symndx;
4147 sec = local_sections[r_symndx];
4148 relocation = (sec->output_section->vma
4149 + sec->output_offset
4150 + sym->st_value);
4151 /* A local symbol never has STO_SH5_ISA32, so we don't need
4152 datalabel processing here. Make sure this does not change
4153 without notice. */
4154 if ((sym->st_other & STO_SH5_ISA32) != 0)
4155 ((*info->callbacks->reloc_dangerous)
4156 (info,
4157 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
4158 input_bfd, input_section, rel->r_offset));
4159 if (info->relocateable)
4160 {
4161 /* This is a relocateable link. We don't have to change
4162 anything, unless the reloc is against a section symbol,
4163 in which case we have to adjust according to where the
4164 section symbol winds up in the output section. */
4165 sym = local_syms + r_symndx;
4166 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
4167 {
4168 if (! howto->partial_inplace)
4169 {
4170 /* For relocations with the addend in the
4171 relocation, we need just to update the addend.
4172 All real relocs are of type partial_inplace; this
4173 code is mostly for completeness. */
4174 rel->r_addend += sec->output_offset + sym->st_value;
4175
4176 continue;
4177 }
4178
4179 /* Relocs of type partial_inplace need to pick up the
4180 contents in the contents and add the offset resulting
4181 from the changed location of the section symbol.
4182 Using _bfd_final_link_relocate (e.g. goto
4183 final_link_relocate) here would be wrong, because
4184 relocations marked pc_relative would get the current
4185 location subtracted, and we must only do that at the
4186 final link. */
4187 r = _bfd_relocate_contents (howto, input_bfd,
4188 sec->output_offset
4189 + sym->st_value,
4190 contents + rel->r_offset);
4191 goto relocation_done;
4192 }
4193
4194 continue;
4195 }
4196 else if (! howto->partial_inplace)
4197 {
4198 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
4199 addend = rel->r_addend;
4200 }
4201 else if ((sec->flags & SEC_MERGE)
4202 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
4203 {
4204 asection *msec;
4205
4206 if (howto->rightshift || howto->src_mask != 0xffffffff)
4207 {
4208 (*_bfd_error_handler)
4209 (_("%s(%s+0x%lx): %s relocation against SEC_MERGE section"),
4210 bfd_archive_filename (input_bfd),
4211 bfd_get_section_name (input_bfd, input_section),
4212 (long) rel->r_offset, howto->name);
4213 return false;
4214 }
4215
4216 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
4217 msec = sec;
4218 addend =
4219 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
4220 - relocation;
4221 addend += msec->output_section->vma + msec->output_offset;
4222 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
4223 addend = 0;
4224 }
4225 }
4226 else
4227 {
4228 /* Section symbol are never (?) placed in the hash table, so
4229 we can just ignore hash relocations when creating a
4230 relocateable object file. */
4231 if (info->relocateable)
4232 continue;
4233
4234 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4235 while (h->root.type == bfd_link_hash_indirect
4236 || h->root.type == bfd_link_hash_warning)
4237 {
4238 #ifdef INCLUDE_SHMEDIA
4239 /* If the reference passes a symbol marked with
4240 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
4241 doesn't count. */
4242 seen_stt_datalabel |= h->type == STT_DATALABEL;
4243 #endif
4244 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4245 }
4246 if (h->root.type == bfd_link_hash_defined
4247 || h->root.type == bfd_link_hash_defweak)
4248 {
4249 sec = h->root.u.def.section;
4250 /* In these cases, we don't need the relocation value.
4251 We check specially because in some obscure cases
4252 sec->output_section will be NULL. */
4253 if (r_type == R_SH_GOTPC
4254 || r_type == R_SH_GOTPC_LOW16
4255 || r_type == R_SH_GOTPC_MEDLOW16
4256 || r_type == R_SH_GOTPC_MEDHI16
4257 || r_type == R_SH_GOTPC_HI16
4258 || ((r_type == R_SH_PLT32
4259 || r_type == R_SH_PLT_LOW16
4260 || r_type == R_SH_PLT_MEDLOW16
4261 || r_type == R_SH_PLT_MEDHI16
4262 || r_type == R_SH_PLT_HI16)
4263 && h->plt.offset != (bfd_vma) -1)
4264 || ((r_type == R_SH_GOT32
4265 || r_type == R_SH_GOT_LOW16
4266 || r_type == R_SH_GOT_MEDLOW16
4267 || r_type == R_SH_GOT_MEDHI16
4268 || r_type == R_SH_GOT_HI16)
4269 && elf_hash_table (info)->dynamic_sections_created
4270 && (! info->shared
4271 || (! info->symbolic && h->dynindx != -1)
4272 || (h->elf_link_hash_flags
4273 & ELF_LINK_HASH_DEF_REGULAR) == 0))
4274 /* The cases above are those in which relocation is
4275 overwritten in the switch block below. The cases
4276 below are those in which we must defer relocation
4277 to run-time, because we can't resolve absolute
4278 addresses when creating a shared library. */
4279 || (info->shared
4280 && ((! info->symbolic && h->dynindx != -1)
4281 || (h->elf_link_hash_flags
4282 & ELF_LINK_HASH_DEF_REGULAR) == 0)
4283 && ((r_type == R_SH_DIR32
4284 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
4285 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
4286 || r_type == R_SH_REL32)
4287 && ((input_section->flags & SEC_ALLOC) != 0
4288 /* DWARF will emit R_SH_DIR32 relocations in its
4289 sections against symbols defined externally
4290 in shared libraries. We can't do anything
4291 with them here. */
4292 || (input_section->flags & SEC_DEBUGGING) != 0)))
4293 relocation = 0;
4294 else if (sec->output_section == NULL)
4295 {
4296 (*_bfd_error_handler)
4297 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
4298 bfd_archive_filename (input_bfd), h->root.root.string,
4299 bfd_get_section_name (input_bfd, input_section));
4300 relocation = 0;
4301 }
4302 else
4303 relocation = ((h->root.u.def.value
4304 + sec->output_section->vma
4305 + sec->output_offset)
4306 /* A STO_SH5_ISA32 causes a "bitor 1" to the
4307 symbol value, unless we've seen
4308 STT_DATALABEL on the way to it. */
4309 | ((h->other & STO_SH5_ISA32) != 0
4310 && ! seen_stt_datalabel));
4311 }
4312 else if (h->root.type == bfd_link_hash_undefweak)
4313 relocation = 0;
4314 else if (info->shared
4315 && (!info->symbolic || info->allow_shlib_undefined)
4316 && !info->no_undefined)
4317 relocation = 0;
4318 else
4319 {
4320 if (! ((*info->callbacks->undefined_symbol)
4321 (info, h->root.root.string, input_bfd,
4322 input_section, rel->r_offset, true)))
4323 return false;
4324 relocation = 0;
4325 }
4326 }
4327
4328 switch ((int) r_type)
4329 {
4330 final_link_relocate:
4331 /* COFF relocs don't use the addend. The addend is used for
4332 R_SH_DIR32 to be compatible with other compilers. */
4333 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4334 contents, rel->r_offset,
4335 relocation, addend);
4336 break;
4337
4338 case R_SH_IND12W:
4339 relocation -= 4;
4340 goto final_link_relocate;
4341
4342 case R_SH_DIR8WPN:
4343 case R_SH_DIR8WPZ:
4344 case R_SH_DIR8WPL:
4345 /* If the reloc is against the start of this section, then
4346 the assembler has already taken care of it and the reloc
4347 is here only to assist in relaxing. If the reloc is not
4348 against the start of this section, then it's against an
4349 external symbol and we must deal with it ourselves. */
4350 if (input_section->output_section->vma + input_section->output_offset
4351 != relocation)
4352 {
4353 int disp = (relocation
4354 - input_section->output_section->vma
4355 - input_section->output_offset
4356 - rel->r_offset);
4357 int mask = 0;
4358 switch (r_type)
4359 {
4360 case R_SH_DIR8WPN:
4361 case R_SH_DIR8WPZ: mask = 1; break;
4362 case R_SH_DIR8WPL: mask = 3; break;
4363 default: mask = 0; break;
4364 }
4365 if (disp & mask)
4366 {
4367 ((*_bfd_error_handler)
4368 (_("%s: 0x%lx: fatal: unaligned branch target for relax-support relocation"),
4369 bfd_archive_filename (input_section->owner),
4370 (unsigned long) rel->r_offset));
4371 bfd_set_error (bfd_error_bad_value);
4372 return false;
4373 }
4374 relocation -= 4;
4375 goto final_link_relocate;
4376 }
4377 r = bfd_reloc_ok;
4378 break;
4379
4380 default:
4381 #ifdef INCLUDE_SHMEDIA
4382 if (shmedia_prepare_reloc (info, input_bfd, input_section,
4383 contents, rel, &relocation))
4384 goto final_link_relocate;
4385 #endif
4386 bfd_set_error (bfd_error_bad_value);
4387 return false;
4388
4389 case R_SH_DIR32:
4390 case R_SH_REL32:
4391 if (info->shared
4392 && r_symndx != 0
4393 && (input_section->flags & SEC_ALLOC) != 0
4394 && (r_type != R_SH_REL32
4395 || (h != NULL
4396 && h->dynindx != -1
4397 && (! info->symbolic
4398 || (h->elf_link_hash_flags
4399 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
4400 {
4401 Elf_Internal_Rela outrel;
4402 boolean skip, relocate;
4403
4404 /* When generating a shared object, these relocations
4405 are copied into the output file to be resolved at run
4406 time. */
4407
4408 if (sreloc == NULL)
4409 {
4410 const char *name;
4411
4412 name = (bfd_elf_string_from_elf_section
4413 (input_bfd,
4414 elf_elfheader (input_bfd)->e_shstrndx,
4415 elf_section_data (input_section)->rel_hdr.sh_name));
4416 if (name == NULL)
4417 return false;
4418
4419 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
4420 && strcmp (bfd_get_section_name (input_bfd,
4421 input_section),
4422 name + 5) == 0);
4423
4424 sreloc = bfd_get_section_by_name (dynobj, name);
4425 BFD_ASSERT (sreloc != NULL);
4426 }
4427
4428 skip = false;
4429 relocate = false;
4430
4431 outrel.r_offset =
4432 _bfd_elf_section_offset (output_bfd, info, input_section,
4433 rel->r_offset);
4434 if (outrel.r_offset == (bfd_vma) -1)
4435 skip = true;
4436 else if (outrel.r_offset == (bfd_vma) -2)
4437 skip = true, relocate = true;
4438 outrel.r_offset += (input_section->output_section->vma
4439 + input_section->output_offset);
4440
4441 if (skip)
4442 memset (&outrel, 0, sizeof outrel);
4443 else if (r_type == R_SH_REL32)
4444 {
4445 BFD_ASSERT (h != NULL && h->dynindx != -1);
4446 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
4447 outrel.r_addend
4448 = bfd_get_32 (input_bfd, contents + rel->r_offset);
4449 }
4450 else
4451 {
4452 /* h->dynindx may be -1 if this symbol was marked to
4453 become local. */
4454 if (h == NULL
4455 || ((info->symbolic || h->dynindx == -1)
4456 && (h->elf_link_hash_flags
4457 & ELF_LINK_HASH_DEF_REGULAR) != 0))
4458 {
4459 relocate = true;
4460 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4461 outrel.r_addend
4462 = relocation + bfd_get_32 (input_bfd,
4463 contents + rel->r_offset);
4464 }
4465 else
4466 {
4467 BFD_ASSERT (h->dynindx != -1);
4468 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
4469 outrel.r_addend
4470 = relocation + bfd_get_32 (input_bfd,
4471 contents + rel->r_offset);
4472 }
4473 }
4474
4475 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
4476 (((Elf32_External_Rela *)
4477 sreloc->contents)
4478 + sreloc->reloc_count));
4479 ++sreloc->reloc_count;
4480
4481 /* If this reloc is against an external symbol, we do
4482 not want to fiddle with the addend. Otherwise, we
4483 need to include the symbol value so that it becomes
4484 an addend for the dynamic reloc. */
4485 if (! relocate)
4486 continue;
4487 }
4488 goto final_link_relocate;
4489
4490 case R_SH_GOTPLT32:
4491 #ifdef INCLUDE_SHMEDIA
4492 case R_SH_GOTPLT_LOW16:
4493 case R_SH_GOTPLT_MEDLOW16:
4494 case R_SH_GOTPLT_MEDHI16:
4495 case R_SH_GOTPLT_HI16:
4496 case R_SH_GOTPLT10BY4:
4497 case R_SH_GOTPLT10BY8:
4498 #endif
4499 /* Relocation is to the entry for this symbol in the
4500 procedure linkage table. */
4501
4502 if (h == NULL
4503 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
4504 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
4505 || ! info->shared
4506 || info->symbolic
4507 || h->dynindx == -1
4508 || h->plt.offset == (bfd_vma) -1
4509 || h->got.offset != (bfd_vma) -1)
4510 goto force_got;
4511
4512 /* Relocation is to the entry for this symbol in the global
4513 offset table extension for the procedure linkage table. */
4514 if (sgotplt == NULL)
4515 {
4516 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
4517 BFD_ASSERT (sgotplt != NULL);
4518 }
4519
4520 relocation = (sgotplt->output_offset
4521 + ((h->plt.offset / elf_sh_sizeof_plt (info)
4522 - 1 + 3) * 4));
4523
4524 #ifdef GOT_BIAS
4525 relocation -= GOT_BIAS;
4526 #endif
4527
4528 goto final_link_relocate;
4529
4530 force_got:
4531 case R_SH_GOT32:
4532 #ifdef INCLUDE_SHMEDIA
4533 case R_SH_GOT_LOW16:
4534 case R_SH_GOT_MEDLOW16:
4535 case R_SH_GOT_MEDHI16:
4536 case R_SH_GOT_HI16:
4537 case R_SH_GOT10BY4:
4538 case R_SH_GOT10BY8:
4539 #endif
4540 /* Relocation is to the entry for this symbol in the global
4541 offset table. */
4542 if (sgot == NULL)
4543 {
4544 sgot = bfd_get_section_by_name (dynobj, ".got");
4545 BFD_ASSERT (sgot != NULL);
4546 }
4547
4548 if (h != NULL)
4549 {
4550 bfd_vma off;
4551
4552 off = h->got.offset;
4553 #ifdef INCLUDE_SHMEDIA
4554 if (seen_stt_datalabel)
4555 {
4556 struct elf_sh_link_hash_entry *hsh;
4557
4558 hsh = (struct elf_sh_link_hash_entry *)h;
4559 off = hsh->datalabel_got_offset;
4560 }
4561 #endif
4562 BFD_ASSERT (off != (bfd_vma) -1);
4563
4564 if (! elf_hash_table (info)->dynamic_sections_created
4565 || (info->shared
4566 && (info->symbolic || h->dynindx == -1
4567 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
4568 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
4569 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
4570 {
4571 /* This is actually a static link, or it is a
4572 -Bsymbolic link and the symbol is defined
4573 locally, or the symbol was forced to be local
4574 because of a version file. We must initialize
4575 this entry in the global offset table. Since the
4576 offset must always be a multiple of 4, we use the
4577 least significant bit to record whether we have
4578 initialized it already.
4579
4580 When doing a dynamic link, we create a .rela.got
4581 relocation entry to initialize the value. This
4582 is done in the finish_dynamic_symbol routine. */
4583 if ((off & 1) != 0)
4584 off &= ~1;
4585 else
4586 {
4587 bfd_put_32 (output_bfd, relocation,
4588 sgot->contents + off);
4589 #ifdef INCLUDE_SHMEDIA
4590 if (seen_stt_datalabel)
4591 {
4592 struct elf_sh_link_hash_entry *hsh;
4593
4594 hsh = (struct elf_sh_link_hash_entry *)h;
4595 hsh->datalabel_got_offset |= 1;
4596 }
4597 else
4598 #endif
4599 h->got.offset |= 1;
4600 }
4601 }
4602
4603 relocation = sgot->output_offset + off;
4604 }
4605 else
4606 {
4607 bfd_vma off;
4608
4609 #ifdef INCLUDE_SHMEDIA
4610 if (rel->r_addend)
4611 {
4612 BFD_ASSERT (local_got_offsets != NULL
4613 && (local_got_offsets[symtab_hdr->sh_info
4614 + r_symndx]
4615 != (bfd_vma) -1));
4616
4617 off = local_got_offsets[symtab_hdr->sh_info
4618 + r_symndx];
4619 }
4620 else
4621 {
4622 #endif
4623 BFD_ASSERT (local_got_offsets != NULL
4624 && local_got_offsets[r_symndx] != (bfd_vma) -1);
4625
4626 off = local_got_offsets[r_symndx];
4627 #ifdef INCLUDE_SHMEDIA
4628 }
4629 #endif
4630
4631 /* The offset must always be a multiple of 4. We use
4632 the least significant bit to record whether we have
4633 already generated the necessary reloc. */
4634 if ((off & 1) != 0)
4635 off &= ~1;
4636 else
4637 {
4638 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
4639
4640 if (info->shared)
4641 {
4642 asection *srelgot;
4643 Elf_Internal_Rela outrel;
4644
4645 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
4646 BFD_ASSERT (srelgot != NULL);
4647
4648 outrel.r_offset = (sgot->output_section->vma
4649 + sgot->output_offset
4650 + off);
4651 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4652 outrel.r_addend = relocation;
4653 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
4654 (((Elf32_External_Rela *)
4655 srelgot->contents)
4656 + srelgot->reloc_count));
4657 ++srelgot->reloc_count;
4658 }
4659
4660 #ifdef INCLUDE_SHMEDIA
4661 if (rel->r_addend)
4662 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
4663 else
4664 #endif
4665 local_got_offsets[r_symndx] |= 1;
4666 }
4667
4668 relocation = sgot->output_offset + off;
4669 }
4670
4671 #ifdef GOT_BIAS
4672 relocation -= GOT_BIAS;
4673 #endif
4674
4675 goto final_link_relocate;
4676
4677 case R_SH_GOTOFF:
4678 #ifdef INCLUDE_SHMEDIA
4679 case R_SH_GOTOFF_LOW16:
4680 case R_SH_GOTOFF_MEDLOW16:
4681 case R_SH_GOTOFF_MEDHI16:
4682 case R_SH_GOTOFF_HI16:
4683 #endif
4684 /* Relocation is relative to the start of the global offset
4685 table. */
4686
4687 if (sgot == NULL)
4688 {
4689 sgot = bfd_get_section_by_name (dynobj, ".got");
4690 BFD_ASSERT (sgot != NULL);
4691 }
4692
4693 /* Note that sgot->output_offset is not involved in this
4694 calculation. We always want the start of .got. If we
4695 defined _GLOBAL_OFFSET_TABLE in a different way, as is
4696 permitted by the ABI, we might have to change this
4697 calculation. */
4698 relocation -= sgot->output_section->vma;
4699
4700 #ifdef GOT_BIAS
4701 relocation -= GOT_BIAS;
4702 #endif
4703
4704 addend = rel->r_addend;
4705
4706 goto final_link_relocate;
4707
4708 case R_SH_GOTPC:
4709 #ifdef INCLUDE_SHMEDIA
4710 case R_SH_GOTPC_LOW16:
4711 case R_SH_GOTPC_MEDLOW16:
4712 case R_SH_GOTPC_MEDHI16:
4713 case R_SH_GOTPC_HI16:
4714 #endif
4715 /* Use global offset table as symbol value. */
4716
4717 if (sgot == NULL)
4718 {
4719 sgot = bfd_get_section_by_name (dynobj, ".got");
4720 BFD_ASSERT (sgot != NULL);
4721 }
4722
4723 relocation = sgot->output_section->vma;
4724
4725 #ifdef GOT_BIAS
4726 relocation += GOT_BIAS;
4727 #endif
4728
4729 addend = rel->r_addend;
4730
4731 goto final_link_relocate;
4732
4733 case R_SH_PLT32:
4734 #ifdef INCLUDE_SHMEDIA
4735 case R_SH_PLT_LOW16:
4736 case R_SH_PLT_MEDLOW16:
4737 case R_SH_PLT_MEDHI16:
4738 case R_SH_PLT_HI16:
4739 #endif
4740 /* Relocation is to the entry for this symbol in the
4741 procedure linkage table. */
4742
4743 /* Resolve a PLT reloc against a local symbol directly,
4744 without using the procedure linkage table. */
4745 if (h == NULL)
4746 goto final_link_relocate;
4747
4748 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
4749 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
4750 goto final_link_relocate;
4751
4752 if (h->plt.offset == (bfd_vma) -1)
4753 {
4754 /* We didn't make a PLT entry for this symbol. This
4755 happens when statically linking PIC code, or when
4756 using -Bsymbolic. */
4757 goto final_link_relocate;
4758 }
4759
4760 if (splt == NULL)
4761 {
4762 splt = bfd_get_section_by_name (dynobj, ".plt");
4763 BFD_ASSERT (splt != NULL);
4764 }
4765
4766 relocation = (splt->output_section->vma
4767 + splt->output_offset
4768 + h->plt.offset);
4769
4770 #ifdef INCLUDE_SHMEDIA
4771 relocation++;
4772 #endif
4773
4774 addend = rel->r_addend;
4775
4776 goto final_link_relocate;
4777
4778 case R_SH_LOOP_START:
4779 {
4780 static bfd_vma start, end;
4781
4782 start = (relocation + rel->r_addend
4783 - (sec->output_section->vma + sec->output_offset));
4784 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4785 rel->r_offset, sec, start, end);
4786 break;
4787
4788 case R_SH_LOOP_END:
4789 end = (relocation + rel->r_addend
4790 - (sec->output_section->vma + sec->output_offset));
4791 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4792 rel->r_offset, sec, start, end);
4793 break;
4794 }
4795 }
4796
4797 relocation_done:
4798 if (r != bfd_reloc_ok)
4799 {
4800 switch (r)
4801 {
4802 default:
4803 case bfd_reloc_outofrange:
4804 abort ();
4805 case bfd_reloc_overflow:
4806 {
4807 const char *name;
4808
4809 if (h != NULL)
4810 name = h->root.root.string;
4811 else
4812 {
4813 name = (bfd_elf_string_from_elf_section
4814 (input_bfd, symtab_hdr->sh_link, sym->st_name));
4815 if (name == NULL)
4816 return false;
4817 if (*name == '\0')
4818 name = bfd_section_name (input_bfd, sec);
4819 }
4820 if (! ((*info->callbacks->reloc_overflow)
4821 (info, name, howto->name, (bfd_vma) 0,
4822 input_bfd, input_section, rel->r_offset)))
4823 return false;
4824 }
4825 break;
4826 }
4827 }
4828 }
4829
4830 return true;
4831 }
4832
4833 /* This is a version of bfd_generic_get_relocated_section_contents
4834 which uses sh_elf_relocate_section. */
4835
4836 static bfd_byte *
4837 sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
4838 data, relocateable, symbols)
4839 bfd *output_bfd;
4840 struct bfd_link_info *link_info;
4841 struct bfd_link_order *link_order;
4842 bfd_byte *data;
4843 boolean relocateable;
4844 asymbol **symbols;
4845 {
4846 Elf_Internal_Shdr *symtab_hdr;
4847 Elf_Internal_Shdr *shndx_hdr;
4848 asection *input_section = link_order->u.indirect.section;
4849 bfd *input_bfd = input_section->owner;
4850 asection **sections = NULL;
4851 Elf_Internal_Rela *internal_relocs = NULL;
4852 Elf32_External_Sym *external_syms = NULL;
4853 Elf_External_Sym_Shndx *shndx_buf = NULL;
4854 Elf_External_Sym_Shndx *shndx;
4855 Elf_Internal_Sym *internal_syms = NULL;
4856
4857 /* We only need to handle the case of relaxing, or of having a
4858 particular set of section contents, specially. */
4859 if (relocateable
4860 || elf_section_data (input_section)->this_hdr.contents == NULL)
4861 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
4862 link_order, data,
4863 relocateable,
4864 symbols);
4865
4866 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
4867 shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr;
4868
4869 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
4870 (size_t) input_section->_raw_size);
4871
4872 if ((input_section->flags & SEC_RELOC) != 0
4873 && input_section->reloc_count > 0)
4874 {
4875 Elf_Internal_Sym *isymp;
4876 asection **secpp;
4877 Elf32_External_Sym *esym, *esymend;
4878 bfd_size_type amt;
4879
4880 if (symtab_hdr->contents != NULL)
4881 external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
4882 else if (symtab_hdr->sh_info != 0)
4883 {
4884 amt = symtab_hdr->sh_info;
4885 amt *= sizeof (Elf32_External_Sym);
4886 external_syms = (Elf32_External_Sym *) bfd_malloc (amt);
4887 if (external_syms == NULL)
4888 goto error_return;
4889 if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
4890 || bfd_bread ((PTR) external_syms, amt, input_bfd) != amt)
4891 goto error_return;
4892 }
4893
4894 if (symtab_hdr->sh_info != 0 && shndx_hdr->sh_size != 0)
4895 {
4896 amt = symtab_hdr->sh_info;
4897 amt *= sizeof (Elf_External_Sym_Shndx);
4898 shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
4899 if (shndx_buf == NULL)
4900 goto error_return;
4901 if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0
4902 || bfd_bread ((PTR) shndx_buf, amt, input_bfd) != amt)
4903 goto error_return;
4904 }
4905
4906 internal_relocs = (_bfd_elf32_link_read_relocs
4907 (input_bfd, input_section, (PTR) NULL,
4908 (Elf_Internal_Rela *) NULL, false));
4909 if (internal_relocs == NULL)
4910 goto error_return;
4911
4912 amt = symtab_hdr->sh_info;
4913 amt *= sizeof (Elf_Internal_Sym);
4914 internal_syms = (Elf_Internal_Sym *) bfd_malloc (amt);
4915 if (internal_syms == NULL && amt != 0)
4916 goto error_return;
4917
4918 amt = symtab_hdr->sh_info;
4919 amt *= sizeof (asection *);
4920 sections = (asection **) bfd_malloc (amt);
4921 if (sections == NULL && amt != 0)
4922 goto error_return;
4923
4924 for (isymp = internal_syms, secpp = sections, shndx = shndx_buf,
4925 esym = external_syms, esymend = esym + symtab_hdr->sh_info;
4926 esym < esymend;
4927 ++esym, ++isymp, ++secpp, shndx = (shndx ? shndx + 1 : NULL))
4928 {
4929 asection *isec;
4930
4931 bfd_elf32_swap_symbol_in (input_bfd, (const PTR) esym,
4932 (const PTR) shndx, isymp);
4933
4934 if (isymp->st_shndx == SHN_UNDEF)
4935 isec = bfd_und_section_ptr;
4936 else if (isymp->st_shndx == SHN_ABS)
4937 isec = bfd_abs_section_ptr;
4938 else if (isymp->st_shndx == SHN_COMMON)
4939 isec = bfd_com_section_ptr;
4940 else
4941 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
4942
4943 *secpp = isec;
4944 }
4945
4946 if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
4947 input_section, data, internal_relocs,
4948 internal_syms, sections))
4949 goto error_return;
4950
4951 if (sections != NULL)
4952 free (sections);
4953 if (internal_syms != NULL)
4954 free (internal_syms);
4955 if (shndx_buf != NULL)
4956 free (shndx_buf);
4957 if (external_syms != NULL && symtab_hdr->contents == NULL)
4958 free (external_syms);
4959 if (internal_relocs != elf_section_data (input_section)->relocs)
4960 free (internal_relocs);
4961 }
4962
4963 return data;
4964
4965 error_return:
4966 if (internal_relocs != NULL
4967 && internal_relocs != elf_section_data (input_section)->relocs)
4968 free (internal_relocs);
4969 if (shndx_buf != NULL)
4970 free (shndx_buf);
4971 if (external_syms != NULL && symtab_hdr->contents == NULL)
4972 free (external_syms);
4973 if (internal_syms != NULL)
4974 free (internal_syms);
4975 if (sections != NULL)
4976 free (sections);
4977 return NULL;
4978 }
4979
4980 static asection *
4981 sh_elf_gc_mark_hook (abfd, info, rel, h, sym)
4982 bfd *abfd;
4983 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4984 Elf_Internal_Rela *rel;
4985 struct elf_link_hash_entry *h;
4986 Elf_Internal_Sym *sym;
4987 {
4988 if (h != NULL)
4989 {
4990 switch (ELF32_R_TYPE (rel->r_info))
4991 {
4992 case R_SH_GNU_VTINHERIT:
4993 case R_SH_GNU_VTENTRY:
4994 break;
4995
4996 default:
4997 switch (h->root.type)
4998 {
4999 case bfd_link_hash_defined:
5000 case bfd_link_hash_defweak:
5001 return h->root.u.def.section;
5002
5003 case bfd_link_hash_common:
5004 return h->root.u.c.p->section;
5005
5006 default:
5007 break;
5008 }
5009 }
5010 }
5011 else
5012 {
5013 return bfd_section_from_elf_index (abfd, sym->st_shndx);
5014 }
5015
5016 return NULL;
5017 }
5018
5019 /* Update the got entry reference counts for the section being removed. */
5020
5021 static boolean
5022 sh_elf_gc_sweep_hook (abfd, info, sec, relocs)
5023 bfd *abfd ATTRIBUTE_UNUSED;
5024 struct bfd_link_info *info ATTRIBUTE_UNUSED;
5025 asection *sec ATTRIBUTE_UNUSED;
5026 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
5027 {
5028 /* We use got and plt entries for sh, but it would seem that the
5029 existing SH code does no sort of reference counting or whatnot on
5030 its GOT and PLT entries, so it is not possible to garbage collect
5031 them at this time. */
5032 return true;
5033 }
5034
5035 /* Look through the relocs for a section during the first phase.
5036 Since we don't do .gots or .plts, we just need to consider the
5037 virtual table relocs for gc. */
5038
5039 static boolean
5040 sh_elf_check_relocs (abfd, info, sec, relocs)
5041 bfd *abfd;
5042 struct bfd_link_info *info;
5043 asection *sec;
5044 const Elf_Internal_Rela *relocs;
5045 {
5046 Elf_Internal_Shdr *symtab_hdr;
5047 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
5048 const Elf_Internal_Rela *rel;
5049 const Elf_Internal_Rela *rel_end;
5050 bfd *dynobj;
5051 bfd_vma *local_got_offsets;
5052 asection *sgot;
5053 asection *srelgot;
5054 asection *sreloc;
5055
5056 sgot = NULL;
5057 srelgot = NULL;
5058 sreloc = NULL;
5059
5060 if (info->relocateable)
5061 return true;
5062
5063 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5064 sym_hashes = elf_sym_hashes (abfd);
5065 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
5066 if (!elf_bad_symtab (abfd))
5067 sym_hashes_end -= symtab_hdr->sh_info;
5068
5069 dynobj = elf_hash_table (info)->dynobj;
5070 local_got_offsets = elf_local_got_offsets (abfd);
5071
5072 rel_end = relocs + sec->reloc_count;
5073 for (rel = relocs; rel < rel_end; rel++)
5074 {
5075 struct elf_link_hash_entry *h;
5076 unsigned long r_symndx;
5077
5078 r_symndx = ELF32_R_SYM (rel->r_info);
5079 if (r_symndx < symtab_hdr->sh_info)
5080 h = NULL;
5081 else
5082 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5083
5084 /* Some relocs require a global offset table. */
5085 if (dynobj == NULL)
5086 {
5087 switch (ELF32_R_TYPE (rel->r_info))
5088 {
5089 case R_SH_GOTPLT32:
5090 case R_SH_GOT32:
5091 case R_SH_GOTOFF:
5092 case R_SH_GOTPC:
5093 #ifdef INCLUDE_SHMEDIA
5094 case R_SH_GOTPLT_LOW16:
5095 case R_SH_GOTPLT_MEDLOW16:
5096 case R_SH_GOTPLT_MEDHI16:
5097 case R_SH_GOTPLT_HI16:
5098 case R_SH_GOTPLT10BY4:
5099 case R_SH_GOTPLT10BY8:
5100 case R_SH_GOT_LOW16:
5101 case R_SH_GOT_MEDLOW16:
5102 case R_SH_GOT_MEDHI16:
5103 case R_SH_GOT_HI16:
5104 case R_SH_GOT10BY4:
5105 case R_SH_GOT10BY8:
5106 case R_SH_GOTOFF_LOW16:
5107 case R_SH_GOTOFF_MEDLOW16:
5108 case R_SH_GOTOFF_MEDHI16:
5109 case R_SH_GOTOFF_HI16:
5110 case R_SH_GOTPC_LOW16:
5111 case R_SH_GOTPC_MEDLOW16:
5112 case R_SH_GOTPC_MEDHI16:
5113 case R_SH_GOTPC_HI16:
5114 #endif
5115 elf_hash_table (info)->dynobj = dynobj = abfd;
5116 if (! _bfd_elf_create_got_section (dynobj, info))
5117 return false;
5118 break;
5119
5120 default:
5121 break;
5122 }
5123 }
5124
5125 switch (ELF32_R_TYPE (rel->r_info))
5126 {
5127 /* This relocation describes the C++ object vtable hierarchy.
5128 Reconstruct it for later use during GC. */
5129 case R_SH_GNU_VTINHERIT:
5130 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
5131 return false;
5132 break;
5133
5134 /* This relocation describes which C++ vtable entries are actually
5135 used. Record for later use during GC. */
5136 case R_SH_GNU_VTENTRY:
5137 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
5138 return false;
5139 break;
5140
5141 force_got:
5142 case R_SH_GOT32:
5143 #ifdef INCLUDE_SHMEDIA
5144 case R_SH_GOT_LOW16:
5145 case R_SH_GOT_MEDLOW16:
5146 case R_SH_GOT_MEDHI16:
5147 case R_SH_GOT_HI16:
5148 case R_SH_GOT10BY4:
5149 case R_SH_GOT10BY8:
5150 #endif
5151 /* This symbol requires a global offset table entry. */
5152
5153 if (sgot == NULL)
5154 {
5155 sgot = bfd_get_section_by_name (dynobj, ".got");
5156 BFD_ASSERT (sgot != NULL);
5157 }
5158
5159 if (srelgot == NULL
5160 && (h != NULL || info->shared))
5161 {
5162 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
5163 if (srelgot == NULL)
5164 {
5165 srelgot = bfd_make_section (dynobj, ".rela.got");
5166 if (srelgot == NULL
5167 || ! bfd_set_section_flags (dynobj, srelgot,
5168 (SEC_ALLOC
5169 | SEC_LOAD
5170 | SEC_HAS_CONTENTS
5171 | SEC_IN_MEMORY
5172 | SEC_LINKER_CREATED
5173 | SEC_READONLY))
5174 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
5175 return false;
5176 }
5177 }
5178
5179 if (h != NULL)
5180 {
5181 #ifdef INCLUDE_SHMEDIA
5182 if (h->type == STT_DATALABEL)
5183 {
5184 struct elf_sh_link_hash_entry *hsh;
5185
5186 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5187 hsh = (struct elf_sh_link_hash_entry *)h;
5188 if (hsh->datalabel_got_offset != (bfd_vma) -1)
5189 break;
5190
5191 hsh->datalabel_got_offset = sgot->_raw_size;
5192 }
5193 else
5194 {
5195 #endif
5196 if (h->got.offset != (bfd_vma) -1)
5197 {
5198 /* We have already allocated space in the .got. */
5199 break;
5200 }
5201 h->got.offset = sgot->_raw_size;
5202 #ifdef INCLUDE_SHMEDIA
5203 }
5204 #endif
5205
5206 /* Make sure this symbol is output as a dynamic symbol. */
5207 if (h->dynindx == -1)
5208 {
5209 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
5210 return false;
5211 }
5212
5213 srelgot->_raw_size += sizeof (Elf32_External_Rela);
5214 }
5215 else
5216 {
5217 /* This is a global offset table entry for a local
5218 symbol. */
5219 if (local_got_offsets == NULL)
5220 {
5221 bfd_size_type size;
5222 register unsigned int i;
5223
5224 size = symtab_hdr->sh_info;
5225 size *= sizeof (bfd_vma);
5226 #ifdef INCLUDE_SHMEDIA
5227 /* Reserve space for both the datalabel and
5228 codelabel local GOT offsets. */
5229 size *= 2;
5230 #endif
5231 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
5232 if (local_got_offsets == NULL)
5233 return false;
5234 elf_local_got_offsets (abfd) = local_got_offsets;
5235 for (i = 0; i < symtab_hdr->sh_info; i++)
5236 local_got_offsets[i] = (bfd_vma) -1;
5237 #ifdef INCLUDE_SHMEDIA
5238 for (; i < 2 * symtab_hdr->sh_info; i++)
5239 local_got_offsets[i] = (bfd_vma) -1;
5240 #endif
5241 }
5242 #ifdef INCLUDE_SHMEDIA
5243 if ((rel->r_addend & 1) != 0)
5244 {
5245 if (local_got_offsets[symtab_hdr->sh_info
5246 + r_symndx] != (bfd_vma) -1)
5247 {
5248 /* We have already allocated space in the .got. */
5249 break;
5250 }
5251 local_got_offsets[symtab_hdr->sh_info
5252 + r_symndx] = sgot->_raw_size;
5253 }
5254 else
5255 {
5256 #endif
5257 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
5258 {
5259 /* We have already allocated space in the .got. */
5260 break;
5261 }
5262 local_got_offsets[r_symndx] = sgot->_raw_size;
5263 #ifdef INCLUDE_SHMEDIA
5264 }
5265 #endif
5266
5267 if (info->shared)
5268 {
5269 /* If we are generating a shared object, we need to
5270 output a R_SH_RELATIVE reloc so that the dynamic
5271 linker can adjust this GOT entry. */
5272 srelgot->_raw_size += sizeof (Elf32_External_Rela);
5273 }
5274 }
5275
5276 sgot->_raw_size += 4;
5277
5278 break;
5279
5280 case R_SH_GOTPLT32:
5281 #ifdef INCLUDE_SHMEDIA
5282 case R_SH_GOTPLT_LOW16:
5283 case R_SH_GOTPLT_MEDLOW16:
5284 case R_SH_GOTPLT_MEDHI16:
5285 case R_SH_GOTPLT_HI16:
5286 case R_SH_GOTPLT10BY4:
5287 case R_SH_GOTPLT10BY8:
5288 #endif
5289 /* If this is a local symbol, we resolve it directly without
5290 creating a procedure linkage table entry. */
5291
5292 if (h == NULL
5293 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
5294 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
5295 || ! info->shared
5296 || info->symbolic
5297 || h->dynindx == -1
5298 || h->got.offset != (bfd_vma) -1)
5299 goto force_got;
5300
5301 /* Make sure this symbol is output as a dynamic symbol. */
5302 if (h->dynindx == -1)
5303 {
5304 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
5305 return false;
5306 }
5307
5308 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
5309
5310 break;
5311
5312 case R_SH_PLT32:
5313 #ifdef INCLUDE_SHMEDIA
5314 case R_SH_PLT_LOW16:
5315 case R_SH_PLT_MEDLOW16:
5316 case R_SH_PLT_MEDHI16:
5317 case R_SH_PLT_HI16:
5318 #endif
5319 /* This symbol requires a procedure linkage table entry. We
5320 actually build the entry in adjust_dynamic_symbol,
5321 because this might be a case of linking PIC code which is
5322 never referenced by a dynamic object, in which case we
5323 don't need to generate a procedure linkage table entry
5324 after all. */
5325
5326 /* If this is a local symbol, we resolve it directly without
5327 creating a procedure linkage table entry. */
5328 if (h == NULL)
5329 continue;
5330
5331 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
5332 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
5333 break;
5334
5335 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
5336
5337 break;
5338
5339 case R_SH_DIR32:
5340 case R_SH_REL32:
5341 if (h != NULL)
5342 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
5343
5344 /* If we are creating a shared library, and this is a reloc
5345 against a global symbol, or a non PC relative reloc
5346 against a local symbol, then we need to copy the reloc
5347 into the shared library. However, if we are linking with
5348 -Bsymbolic, we do not need to copy a reloc against a
5349 global symbol which is defined in an object we are
5350 including in the link (i.e., DEF_REGULAR is set). At
5351 this point we have not seen all the input files, so it is
5352 possible that DEF_REGULAR is not set now but will be set
5353 later (it is never cleared). We account for that
5354 possibility below by storing information in the
5355 pcrel_relocs_copied field of the hash table entry. */
5356 if (info->shared
5357 && (sec->flags & SEC_ALLOC) != 0
5358 && (ELF32_R_TYPE (rel->r_info) != R_SH_REL32
5359 || (h != NULL
5360 && (! info->symbolic
5361 || (h->elf_link_hash_flags
5362 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
5363 {
5364 /* When creating a shared object, we must copy these
5365 reloc types into the output file. We create a reloc
5366 section in dynobj and make room for this reloc. */
5367 if (sreloc == NULL)
5368 {
5369 const char *name;
5370
5371 name = (bfd_elf_string_from_elf_section
5372 (abfd,
5373 elf_elfheader (abfd)->e_shstrndx,
5374 elf_section_data (sec)->rel_hdr.sh_name));
5375 if (name == NULL)
5376 return false;
5377
5378 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
5379 && strcmp (bfd_get_section_name (abfd, sec),
5380 name + 5) == 0);
5381
5382 sreloc = bfd_get_section_by_name (dynobj, name);
5383 if (sreloc == NULL)
5384 {
5385 flagword flags;
5386
5387 sreloc = bfd_make_section (dynobj, name);
5388 flags = (SEC_HAS_CONTENTS | SEC_READONLY
5389 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
5390 if ((sec->flags & SEC_ALLOC) != 0)
5391 flags |= SEC_ALLOC | SEC_LOAD;
5392 if (sreloc == NULL
5393 || ! bfd_set_section_flags (dynobj, sreloc, flags)
5394 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
5395 return false;
5396 }
5397 if (sec->flags & SEC_READONLY)
5398 info->flags |= DF_TEXTREL;
5399 }
5400
5401 sreloc->_raw_size += sizeof (Elf32_External_Rela);
5402
5403 /* If we are linking with -Bsymbolic, and this is a
5404 global symbol, we count the number of PC relative
5405 relocations we have entered for this symbol, so that
5406 we can discard them again if the symbol is later
5407 defined by a regular object. Note that this function
5408 is only called if we are using an elf_sh linker
5409 hash table, which means that h is really a pointer to
5410 an elf_sh_link_hash_entry. */
5411 if (h != NULL && info->symbolic
5412 && ELF32_R_TYPE (rel->r_info) == R_SH_REL32)
5413 {
5414 struct elf_sh_link_hash_entry *eh;
5415 struct elf_sh_pcrel_relocs_copied *p;
5416
5417 eh = (struct elf_sh_link_hash_entry *) h;
5418
5419 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
5420 if (p->section == sreloc)
5421 break;
5422
5423 if (p == NULL)
5424 {
5425 p = ((struct elf_sh_pcrel_relocs_copied *)
5426 bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
5427 if (p == NULL)
5428 return false;
5429 p->next = eh->pcrel_relocs_copied;
5430 eh->pcrel_relocs_copied = p;
5431 p->section = sreloc;
5432 p->count = 0;
5433 }
5434
5435 ++p->count;
5436 }
5437 }
5438
5439 break;
5440 }
5441 }
5442
5443 return true;
5444 }
5445
5446 #ifndef sh_elf_set_mach_from_flags
5447 static boolean
5448 sh_elf_set_mach_from_flags (abfd)
5449 bfd *abfd;
5450 {
5451 flagword flags = elf_elfheader (abfd)->e_flags;
5452
5453 switch (flags & EF_SH_MACH_MASK)
5454 {
5455 case EF_SH1:
5456 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh);
5457 break;
5458 case EF_SH2:
5459 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh2);
5460 break;
5461 case EF_SH_DSP:
5462 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh_dsp);
5463 break;
5464 case EF_SH3:
5465 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3);
5466 break;
5467 case EF_SH3_DSP:
5468 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3_dsp);
5469 break;
5470 case EF_SH3E:
5471 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3e);
5472 break;
5473 case EF_SH_UNKNOWN:
5474 case EF_SH4:
5475 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh4);
5476 break;
5477 default:
5478 return false;
5479 }
5480 return true;
5481 }
5482 #endif /* not sh_elf_set_mach_from_flags */
5483
5484 #ifndef sh_elf_set_private_flags
5485 /* Function to keep SH specific file flags. */
5486
5487 static boolean
5488 sh_elf_set_private_flags (abfd, flags)
5489 bfd *abfd;
5490 flagword flags;
5491 {
5492 BFD_ASSERT (! elf_flags_init (abfd)
5493 || elf_elfheader (abfd)->e_flags == flags);
5494
5495 elf_elfheader (abfd)->e_flags = flags;
5496 elf_flags_init (abfd) = true;
5497 return sh_elf_set_mach_from_flags (abfd);
5498 }
5499 #endif /* not sh_elf_set_private_flags */
5500
5501 #ifndef sh_elf_copy_private_data
5502 /* Copy backend specific data from one object module to another */
5503
5504 static boolean
5505 sh_elf_copy_private_data (ibfd, obfd)
5506 bfd * ibfd;
5507 bfd * obfd;
5508 {
5509 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
5510 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
5511 return true;
5512
5513 return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
5514 }
5515 #endif /* not sh_elf_copy_private_data */
5516
5517 #ifndef sh_elf_merge_private_data
5518 /* This routine checks for linking big and little endian objects
5519 together, and for linking sh-dsp with sh3e / sh4 objects. */
5520
5521 static boolean
5522 sh_elf_merge_private_data (ibfd, obfd)
5523 bfd *ibfd;
5524 bfd *obfd;
5525 {
5526 flagword old_flags, new_flags;
5527
5528 if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
5529 return false;
5530
5531 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
5532 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
5533 return true;
5534
5535 if (! elf_flags_init (obfd))
5536 {
5537 /* This happens when ld starts out with a 'blank' output file. */
5538 elf_flags_init (obfd) = true;
5539 elf_elfheader (obfd)->e_flags = EF_SH1;
5540 }
5541 old_flags = elf_elfheader (obfd)->e_flags;
5542 new_flags = elf_elfheader (ibfd)->e_flags;
5543 if ((EF_SH_HAS_DSP (old_flags) && EF_SH_HAS_FP (new_flags))
5544 || (EF_SH_HAS_DSP (new_flags) && EF_SH_HAS_FP (old_flags)))
5545 {
5546 (*_bfd_error_handler)
5547 ("%s: uses %s instructions while previous modules use %s instructions",
5548 bfd_archive_filename (ibfd),
5549 EF_SH_HAS_DSP (new_flags) ? "dsp" : "floating point",
5550 EF_SH_HAS_DSP (new_flags) ? "floating point" : "dsp");
5551 bfd_set_error (bfd_error_bad_value);
5552 return false;
5553 }
5554 elf_elfheader (obfd)->e_flags = EF_SH_MERGE_MACH (old_flags, new_flags);
5555
5556 return sh_elf_set_mach_from_flags (obfd);
5557 }
5558 #endif /* not sh_elf_merge_private_data */
5559
5560 /* Finish up dynamic symbol handling. We set the contents of various
5561 dynamic sections here. */
5562
5563 static boolean
5564 sh_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
5565 bfd *output_bfd;
5566 struct bfd_link_info *info;
5567 struct elf_link_hash_entry *h;
5568 Elf_Internal_Sym *sym;
5569 {
5570 bfd *dynobj;
5571
5572 dynobj = elf_hash_table (info)->dynobj;
5573
5574 if (h->plt.offset != (bfd_vma) -1)
5575 {
5576 asection *splt;
5577 asection *sgot;
5578 asection *srel;
5579
5580 bfd_vma plt_index;
5581 bfd_vma got_offset;
5582 Elf_Internal_Rela rel;
5583
5584 /* This symbol has an entry in the procedure linkage table. Set
5585 it up. */
5586
5587 BFD_ASSERT (h->dynindx != -1);
5588
5589 splt = bfd_get_section_by_name (dynobj, ".plt");
5590 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
5591 srel = bfd_get_section_by_name (dynobj, ".rela.plt");
5592 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
5593
5594 /* Get the index in the procedure linkage table which
5595 corresponds to this symbol. This is the index of this symbol
5596 in all the symbols for which we are making plt entries. The
5597 first entry in the procedure linkage table is reserved. */
5598 plt_index = h->plt.offset / elf_sh_sizeof_plt (info) - 1;
5599
5600 /* Get the offset into the .got table of the entry that
5601 corresponds to this function. Each .got entry is 4 bytes.
5602 The first three are reserved. */
5603 got_offset = (plt_index + 3) * 4;
5604
5605 #ifdef GOT_BIAS
5606 got_offset -= GOT_BIAS;
5607 #endif
5608
5609 /* Fill in the entry in the procedure linkage table. */
5610 if (! info->shared)
5611 {
5612 if (elf_sh_plt_entry == NULL)
5613 {
5614 elf_sh_plt_entry = (bfd_big_endian (output_bfd) ?
5615 elf_sh_plt_entry_be : elf_sh_plt_entry_le);
5616 }
5617 memcpy (splt->contents + h->plt.offset, elf_sh_plt_entry,
5618 elf_sh_sizeof_plt (info));
5619 #ifdef INCLUDE_SHMEDIA
5620 movi_shori_putval (output_bfd,
5621 (sgot->output_section->vma
5622 + sgot->output_offset
5623 + got_offset),
5624 (splt->contents + h->plt.offset
5625 + elf_sh_plt_symbol_offset (info)));
5626
5627 movi_shori_putval (output_bfd,
5628 (splt->output_section->vma + splt->output_offset),
5629 (splt->contents + h->plt.offset
5630 + elf_sh_plt_plt0_offset (info)));
5631 #else
5632 bfd_put_32 (output_bfd,
5633 (sgot->output_section->vma
5634 + sgot->output_offset
5635 + got_offset),
5636 (splt->contents + h->plt.offset
5637 + elf_sh_plt_symbol_offset (info)));
5638
5639 bfd_put_32 (output_bfd,
5640 (splt->output_section->vma + splt->output_offset),
5641 (splt->contents + h->plt.offset
5642 + elf_sh_plt_plt0_offset (info)));
5643 #endif
5644 }
5645 else
5646 {
5647 if (elf_sh_pic_plt_entry == NULL)
5648 {
5649 elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ?
5650 elf_sh_pic_plt_entry_be :
5651 elf_sh_pic_plt_entry_le);
5652 }
5653 memcpy (splt->contents + h->plt.offset, elf_sh_pic_plt_entry,
5654 elf_sh_sizeof_plt (info));
5655 #ifdef INCLUDE_SHMEDIA
5656 movi_shori_putval (output_bfd, got_offset,
5657 (splt->contents + h->plt.offset
5658 + elf_sh_plt_symbol_offset (info)));
5659 #else
5660 bfd_put_32 (output_bfd, got_offset,
5661 (splt->contents + h->plt.offset
5662 + elf_sh_plt_symbol_offset (info)));
5663 #endif
5664 }
5665
5666 #ifdef GOT_BIAS
5667 got_offset += GOT_BIAS;
5668 #endif
5669
5670 #ifdef INCLUDE_SHMEDIA
5671 movi_shori_putval (output_bfd,
5672 plt_index * sizeof (Elf32_External_Rela),
5673 (splt->contents + h->plt.offset
5674 + elf_sh_plt_reloc_offset (info)));
5675 #else
5676 bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
5677 (splt->contents + h->plt.offset
5678 + elf_sh_plt_reloc_offset (info)));
5679 #endif
5680
5681 /* Fill in the entry in the global offset table. */
5682 bfd_put_32 (output_bfd,
5683 (splt->output_section->vma
5684 + splt->output_offset
5685 + h->plt.offset
5686 + elf_sh_plt_temp_offset (info)),
5687 sgot->contents + got_offset);
5688
5689 /* Fill in the entry in the .rela.plt section. */
5690 rel.r_offset = (sgot->output_section->vma
5691 + sgot->output_offset
5692 + got_offset);
5693 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
5694 rel.r_addend = 0;
5695 #ifdef GOT_BIAS
5696 rel.r_addend = GOT_BIAS;
5697 #endif
5698 bfd_elf32_swap_reloca_out (output_bfd, &rel,
5699 ((Elf32_External_Rela *) srel->contents
5700 + plt_index));
5701
5702 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
5703 {
5704 /* Mark the symbol as undefined, rather than as defined in
5705 the .plt section. Leave the value alone. */
5706 sym->st_shndx = SHN_UNDEF;
5707 }
5708 }
5709
5710 if (h->got.offset != (bfd_vma) -1)
5711 {
5712 asection *sgot;
5713 asection *srel;
5714 Elf_Internal_Rela rel;
5715
5716 /* This symbol has an entry in the global offset table. Set it
5717 up. */
5718
5719 sgot = bfd_get_section_by_name (dynobj, ".got");
5720 srel = bfd_get_section_by_name (dynobj, ".rela.got");
5721 BFD_ASSERT (sgot != NULL && srel != NULL);
5722
5723 rel.r_offset = (sgot->output_section->vma
5724 + sgot->output_offset
5725 + (h->got.offset &~ (bfd_vma) 1));
5726
5727 /* If this is a -Bsymbolic link, and the symbol is defined
5728 locally, we just want to emit a RELATIVE reloc. Likewise if
5729 the symbol was forced to be local because of a version file.
5730 The entry in the global offset table will already have been
5731 initialized in the relocate_section function. */
5732 if (info->shared
5733 && (info->symbolic || h->dynindx == -1)
5734 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
5735 {
5736 rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
5737 rel.r_addend = (h->root.u.def.value
5738 + h->root.u.def.section->output_section->vma
5739 + h->root.u.def.section->output_offset);
5740 }
5741 else
5742 {
5743 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
5744 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
5745 rel.r_addend = 0;
5746 }
5747
5748 bfd_elf32_swap_reloca_out (output_bfd, &rel,
5749 ((Elf32_External_Rela *) srel->contents
5750 + srel->reloc_count));
5751 ++srel->reloc_count;
5752 }
5753
5754 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
5755 {
5756 asection *s;
5757 Elf_Internal_Rela rel;
5758
5759 /* This symbol needs a copy reloc. Set it up. */
5760
5761 BFD_ASSERT (h->dynindx != -1
5762 && (h->root.type == bfd_link_hash_defined
5763 || h->root.type == bfd_link_hash_defweak));
5764
5765 s = bfd_get_section_by_name (h->root.u.def.section->owner,
5766 ".rela.bss");
5767 BFD_ASSERT (s != NULL);
5768
5769 rel.r_offset = (h->root.u.def.value
5770 + h->root.u.def.section->output_section->vma
5771 + h->root.u.def.section->output_offset);
5772 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
5773 rel.r_addend = 0;
5774 bfd_elf32_swap_reloca_out (output_bfd, &rel,
5775 ((Elf32_External_Rela *) s->contents
5776 + s->reloc_count));
5777 ++s->reloc_count;
5778 }
5779
5780 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
5781 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
5782 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
5783 sym->st_shndx = SHN_ABS;
5784
5785 return true;
5786 }
5787
5788 /* Finish up the dynamic sections. */
5789
5790 static boolean
5791 sh_elf_finish_dynamic_sections (output_bfd, info)
5792 bfd *output_bfd;
5793 struct bfd_link_info *info;
5794 {
5795 bfd *dynobj;
5796 asection *sgot;
5797 asection *sdyn;
5798
5799 dynobj = elf_hash_table (info)->dynobj;
5800
5801 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
5802 BFD_ASSERT (sgot != NULL);
5803 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5804
5805 if (elf_hash_table (info)->dynamic_sections_created)
5806 {
5807 asection *splt;
5808 Elf32_External_Dyn *dyncon, *dynconend;
5809
5810 BFD_ASSERT (sdyn != NULL);
5811
5812 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5813 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
5814 for (; dyncon < dynconend; dyncon++)
5815 {
5816 Elf_Internal_Dyn dyn;
5817 const char *name;
5818 asection *s;
5819
5820 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5821
5822 switch (dyn.d_tag)
5823 {
5824 default:
5825 break;
5826
5827 case DT_PLTGOT:
5828 name = ".got";
5829 goto get_vma;
5830
5831 case DT_JMPREL:
5832 name = ".rela.plt";
5833 get_vma:
5834 s = bfd_get_section_by_name (output_bfd, name);
5835 BFD_ASSERT (s != NULL);
5836 dyn.d_un.d_ptr = s->vma;
5837 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5838 break;
5839
5840 case DT_PLTRELSZ:
5841 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
5842 BFD_ASSERT (s != NULL);
5843 if (s->_cooked_size != 0)
5844 dyn.d_un.d_val = s->_cooked_size;
5845 else
5846 dyn.d_un.d_val = s->_raw_size;
5847 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5848 break;
5849
5850 case DT_RELASZ:
5851 /* My reading of the SVR4 ABI indicates that the
5852 procedure linkage table relocs (DT_JMPREL) should be
5853 included in the overall relocs (DT_RELA). This is
5854 what Solaris does. However, UnixWare can not handle
5855 that case. Therefore, we override the DT_RELASZ entry
5856 here to make it not include the JMPREL relocs. Since
5857 the linker script arranges for .rela.plt to follow all
5858 other relocation sections, we don't have to worry
5859 about changing the DT_RELA entry. */
5860 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
5861 if (s != NULL)
5862 {
5863 if (s->_cooked_size != 0)
5864 dyn.d_un.d_val -= s->_cooked_size;
5865 else
5866 dyn.d_un.d_val -= s->_raw_size;
5867 }
5868 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5869 break;
5870 }
5871 }
5872
5873 /* Fill in the first entry in the procedure linkage table. */
5874 splt = bfd_get_section_by_name (dynobj, ".plt");
5875 if (splt && splt->_raw_size > 0)
5876 {
5877 if (info->shared)
5878 {
5879 if (elf_sh_pic_plt_entry == NULL)
5880 {
5881 elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ?
5882 elf_sh_pic_plt_entry_be :
5883 elf_sh_pic_plt_entry_le);
5884 }
5885 memcpy (splt->contents, elf_sh_pic_plt_entry,
5886 elf_sh_sizeof_plt (info));
5887 }
5888 else
5889 {
5890 if (elf_sh_plt0_entry == NULL)
5891 {
5892 elf_sh_plt0_entry = (bfd_big_endian (output_bfd) ?
5893 elf_sh_plt0_entry_be :
5894 elf_sh_plt0_entry_le);
5895 }
5896 memcpy (splt->contents, elf_sh_plt0_entry, PLT_ENTRY_SIZE);
5897 #ifdef INCLUDE_SHMEDIA
5898 movi_shori_putval (output_bfd,
5899 sgot->output_section->vma
5900 + sgot->output_offset,
5901 splt->contents
5902 + elf_sh_plt0_gotplt_offset (info));
5903 #else
5904 bfd_put_32 (output_bfd,
5905 sgot->output_section->vma + sgot->output_offset + 4,
5906 splt->contents + elf_sh_plt0_gotid_offset (info));
5907 bfd_put_32 (output_bfd,
5908 sgot->output_section->vma + sgot->output_offset + 8,
5909 splt->contents + elf_sh_plt0_linker_offset (info));
5910 #endif
5911 }
5912
5913 /* UnixWare sets the entsize of .plt to 4, although that doesn't
5914 really seem like the right value. */
5915 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
5916 }
5917 }
5918
5919 /* Fill in the first three entries in the global offset table. */
5920 if (sgot->_raw_size > 0)
5921 {
5922 if (sdyn == NULL)
5923 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
5924 else
5925 bfd_put_32 (output_bfd,
5926 sdyn->output_section->vma + sdyn->output_offset,
5927 sgot->contents);
5928 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
5929 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
5930 }
5931
5932 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
5933
5934 return true;
5935 }
5936
5937 static enum elf_reloc_type_class
5938 sh_elf_reloc_type_class (rela)
5939 const Elf_Internal_Rela *rela;
5940 {
5941 switch ((int) ELF32_R_TYPE (rela->r_info))
5942 {
5943 case R_SH_RELATIVE:
5944 return reloc_class_relative;
5945 case R_SH_JMP_SLOT:
5946 return reloc_class_plt;
5947 case R_SH_COPY:
5948 return reloc_class_copy;
5949 default:
5950 return reloc_class_normal;
5951 }
5952 }
5953
5954 #ifndef ELF_ARCH
5955 #define TARGET_BIG_SYM bfd_elf32_sh_vec
5956 #define TARGET_BIG_NAME "elf32-sh"
5957 #define TARGET_LITTLE_SYM bfd_elf32_shl_vec
5958 #define TARGET_LITTLE_NAME "elf32-shl"
5959 #define ELF_ARCH bfd_arch_sh
5960 #define ELF_MACHINE_CODE EM_SH
5961 #define ELF_MAXPAGESIZE 128
5962
5963 #define elf_symbol_leading_char '_'
5964 #endif /* ELF_ARCH */
5965
5966 #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
5967 #define elf_info_to_howto sh_elf_info_to_howto
5968 #define bfd_elf32_bfd_relax_section sh_elf_relax_section
5969 #define elf_backend_relocate_section sh_elf_relocate_section
5970 #define bfd_elf32_bfd_get_relocated_section_contents \
5971 sh_elf_get_relocated_section_contents
5972 #define elf_backend_object_p sh_elf_set_mach_from_flags
5973 #define bfd_elf32_bfd_set_private_bfd_flags \
5974 sh_elf_set_private_flags
5975 #define bfd_elf32_bfd_copy_private_bfd_data \
5976 sh_elf_copy_private_data
5977 #define bfd_elf32_bfd_merge_private_bfd_data \
5978 sh_elf_merge_private_data
5979
5980 #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
5981 #define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook
5982 #define elf_backend_check_relocs sh_elf_check_relocs
5983
5984 #define elf_backend_can_gc_sections 1
5985 #define elf_backend_create_dynamic_sections \
5986 sh_elf_create_dynamic_sections
5987 #define bfd_elf32_bfd_link_hash_table_create \
5988 sh_elf_link_hash_table_create
5989 #define elf_backend_adjust_dynamic_symbol \
5990 sh_elf_adjust_dynamic_symbol
5991 #define elf_backend_size_dynamic_sections \
5992 sh_elf_size_dynamic_sections
5993 #define elf_backend_finish_dynamic_symbol \
5994 sh_elf_finish_dynamic_symbol
5995 #define elf_backend_finish_dynamic_sections \
5996 sh_elf_finish_dynamic_sections
5997 #define elf_backend_reloc_type_class sh_elf_reloc_type_class
5998
5999 #define elf_backend_want_got_plt 1
6000 #define elf_backend_plt_readonly 1
6001 #define elf_backend_want_plt_sym 0
6002 #define elf_backend_got_header_size 12
6003 #define elf_backend_plt_header_size PLT_ENTRY_SIZE
6004 #include "elf32-target.h"
git-cvsimport of binutils cvsroot