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[thirdparty/binutils-gdb.git] / bfd / elf32-frv.c
1 /* FRV-specific support for 32-bit ELF.
2 Copyright 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
19
20 #include "bfd.h"
21 #include "sysdep.h"
22 #include "libbfd.h"
23 #include "elf-bfd.h"
24 #include "elf/frv.h"
25 #include "elf/dwarf2.h"
26 #include "hashtab.h"
27
28 /* Forward declarations. */
29 static bfd_reloc_status_type elf32_frv_relocate_lo16
30 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
31 static bfd_reloc_status_type elf32_frv_relocate_hi16
32 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
33 static bfd_reloc_status_type elf32_frv_relocate_label24
34 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
35 static bfd_reloc_status_type elf32_frv_relocate_gprel12
36 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
37 bfd_byte *, bfd_vma));
38 static bfd_reloc_status_type elf32_frv_relocate_gprelu12
39 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
40 bfd_byte *, bfd_vma));
41 static bfd_reloc_status_type elf32_frv_relocate_gprello
42 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
43 bfd_byte *, bfd_vma));
44 static bfd_reloc_status_type elf32_frv_relocate_gprelhi
45 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
46 bfd_byte *, bfd_vma));
47 static reloc_howto_type *frv_reloc_type_lookup
48 PARAMS ((bfd *, bfd_reloc_code_real_type));
49 static void frv_info_to_howto_rela
50 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
51 static bfd_boolean elf32_frv_relocate_section
52 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
53 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
54 static bfd_boolean elf32_frv_add_symbol_hook
55 PARAMS (( bfd *, struct bfd_link_info *, Elf_Internal_Sym *,
56 const char **, flagword *, asection **, bfd_vma *));
57 static bfd_reloc_status_type frv_final_link_relocate
58 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
59 Elf_Internal_Rela *, bfd_vma));
60 static bfd_boolean elf32_frv_gc_sweep_hook
61 PARAMS ((bfd *, struct bfd_link_info *, asection *, const
62 Elf_Internal_Rela *));
63 static asection * elf32_frv_gc_mark_hook
64 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
65 struct elf_link_hash_entry *, Elf_Internal_Sym *));
66 static bfd_boolean elf32_frv_check_relocs
67 PARAMS ((bfd *, struct bfd_link_info *, asection *,
68 const Elf_Internal_Rela *));
69 static int elf32_frv_machine
70 PARAMS ((bfd *));
71 static bfd_boolean elf32_frv_object_p
72 PARAMS ((bfd *));
73 static bfd_boolean frv_elf_set_private_flags
74 PARAMS ((bfd *, flagword));
75 static bfd_boolean frv_elf_copy_private_bfd_data
76 PARAMS ((bfd *, bfd *));
77 static bfd_boolean frv_elf_merge_private_bfd_data
78 PARAMS ((bfd *, bfd *));
79 static bfd_boolean frv_elf_print_private_bfd_data
80 PARAMS ((bfd *, PTR));
81
82 static reloc_howto_type elf32_frv_howto_table [] =
83 {
84 /* This reloc does nothing. */
85 HOWTO (R_FRV_NONE, /* type */
86 0, /* rightshift */
87 2, /* size (0 = byte, 1 = short, 2 = long) */
88 32, /* bitsize */
89 FALSE, /* pc_relative */
90 0, /* bitpos */
91 complain_overflow_bitfield, /* complain_on_overflow */
92 bfd_elf_generic_reloc, /* special_function */
93 "R_FRV_NONE", /* name */
94 FALSE, /* partial_inplace */
95 0, /* src_mask */
96 0, /* dst_mask */
97 FALSE), /* pcrel_offset */
98
99 /* A 32 bit absolute relocation. */
100 HOWTO (R_FRV_32, /* type */
101 0, /* rightshift */
102 2, /* size (0 = byte, 1 = short, 2 = long) */
103 32, /* bitsize */
104 FALSE, /* pc_relative */
105 0, /* bitpos */
106 complain_overflow_bitfield, /* complain_on_overflow */
107 bfd_elf_generic_reloc, /* special_function */
108 "R_FRV_32", /* name */
109 FALSE, /* partial_inplace */
110 0xffffffff, /* src_mask */
111 0xffffffff, /* dst_mask */
112 FALSE), /* pcrel_offset */
113
114 /* A 16 bit pc-relative relocation. */
115 HOWTO (R_FRV_LABEL16, /* type */
116 2, /* rightshift */
117 2, /* size (0 = byte, 1 = short, 2 = long) */
118 16, /* bitsize */
119 TRUE, /* pc_relative */
120 0, /* bitpos */
121 complain_overflow_signed, /* complain_on_overflow */
122 bfd_elf_generic_reloc, /* special_function */
123 "R_FRV_LABEL16", /* name */
124 FALSE, /* partial_inplace */
125 0xffff, /* src_mask */
126 0xffff, /* dst_mask */
127 TRUE), /* pcrel_offset */
128
129 /* A 24-bit pc-relative relocation. */
130 HOWTO (R_FRV_LABEL24, /* type */
131 2, /* rightshift */
132 2, /* size (0 = byte, 1 = short, 2 = long) */
133 26, /* bitsize */
134 TRUE, /* pc_relative */
135 0, /* bitpos */
136 complain_overflow_bitfield, /* complain_on_overflow */
137 bfd_elf_generic_reloc, /* special_function */
138 "R_FRV_LABEL24", /* name */
139 FALSE, /* partial_inplace */
140 0x7e03ffff, /* src_mask */
141 0x7e03ffff, /* dst_mask */
142 TRUE), /* pcrel_offset */
143
144 HOWTO (R_FRV_LO16, /* type */
145 0, /* rightshift */
146 2, /* size (0 = byte, 1 = short, 2 = long) */
147 16, /* bitsize */
148 FALSE, /* pc_relative */
149 0, /* bitpos */
150 complain_overflow_dont, /* complain_on_overflow */
151 bfd_elf_generic_reloc, /* special_function */
152 "R_FRV_LO16", /* name */
153 FALSE, /* partial_inplace */
154 0xffff, /* src_mask */
155 0xffff, /* dst_mask */
156 FALSE), /* pcrel_offset */
157
158 HOWTO (R_FRV_HI16, /* type */
159 0, /* rightshift */
160 2, /* size (0 = byte, 1 = short, 2 = long) */
161 16, /* bitsize */
162 FALSE, /* pc_relative */
163 0, /* bitpos */
164 complain_overflow_dont, /* complain_on_overflow */
165 bfd_elf_generic_reloc, /* special_function */
166 "R_FRV_HI16", /* name */
167 FALSE, /* partial_inplace */
168 0xffff, /* src_mask */
169 0xffff, /* dst_mask */
170 FALSE), /* pcrel_offset */
171
172 HOWTO (R_FRV_GPREL12, /* type */
173 0, /* rightshift */
174 2, /* size (0 = byte, 1 = short, 2 = long) */
175 12, /* bitsize */
176 FALSE, /* pc_relative */
177 0, /* bitpos */
178 complain_overflow_dont, /* complain_on_overflow */
179 bfd_elf_generic_reloc, /* special_function */
180 "R_FRV_GPREL12", /* name */
181 FALSE, /* partial_inplace */
182 0xfff, /* src_mask */
183 0xfff, /* dst_mask */
184 FALSE), /* pcrel_offset */
185
186 HOWTO (R_FRV_GPRELU12, /* type */
187 0, /* rightshift */
188 2, /* size (0 = byte, 1 = short, 2 = long) */
189 12, /* bitsize */
190 FALSE, /* pc_relative */
191 0, /* bitpos */
192 complain_overflow_dont, /* complain_on_overflow */
193 bfd_elf_generic_reloc, /* special_function */
194 "R_FRV_GPRELU12", /* name */
195 FALSE, /* partial_inplace */
196 0xfff, /* src_mask */
197 0x3f03f, /* dst_mask */
198 FALSE), /* pcrel_offset */
199
200 HOWTO (R_FRV_GPREL32, /* type */
201 0, /* rightshift */
202 2, /* size (0 = byte, 1 = short, 2 = long) */
203 32, /* bitsize */
204 FALSE, /* pc_relative */
205 0, /* bitpos */
206 complain_overflow_dont, /* complain_on_overflow */
207 bfd_elf_generic_reloc, /* special_function */
208 "R_FRV_GPREL32", /* name */
209 FALSE, /* partial_inplace */
210 0xffffffff, /* src_mask */
211 0xffffffff, /* dst_mask */
212 FALSE), /* pcrel_offset */
213
214 HOWTO (R_FRV_GPRELHI, /* type */
215 0, /* rightshift */
216 2, /* size (0 = byte, 1 = short, 2 = long) */
217 16, /* bitsize */
218 FALSE, /* pc_relative */
219 0, /* bitpos */
220 complain_overflow_dont, /* complain_on_overflow */
221 bfd_elf_generic_reloc, /* special_function */
222 "R_FRV_GPRELHI", /* name */
223 FALSE, /* partial_inplace */
224 0xffff, /* src_mask */
225 0xffff, /* dst_mask */
226 FALSE), /* pcrel_offset */
227
228 HOWTO (R_FRV_GPRELLO, /* type */
229 0, /* rightshift */
230 2, /* size (0 = byte, 1 = short, 2 = long) */
231 16, /* bitsize */
232 FALSE, /* pc_relative */
233 0, /* bitpos */
234 complain_overflow_dont, /* complain_on_overflow */
235 bfd_elf_generic_reloc, /* special_function */
236 "R_FRV_GPRELLO", /* name */
237 FALSE, /* partial_inplace */
238 0xffff, /* src_mask */
239 0xffff, /* dst_mask */
240 FALSE), /* pcrel_offset */
241
242 /* A 12-bit signed operand with the GOT offset for the address of
243 the symbol. */
244 HOWTO (R_FRV_GOT12, /* type */
245 0, /* rightshift */
246 2, /* size (0 = byte, 1 = short, 2 = long) */
247 12, /* bitsize */
248 FALSE, /* pc_relative */
249 0, /* bitpos */
250 complain_overflow_signed, /* complain_on_overflow */
251 bfd_elf_generic_reloc, /* special_function */
252 "R_FRV_GOT12", /* name */
253 FALSE, /* partial_inplace */
254 0xfff, /* src_mask */
255 0xfff, /* dst_mask */
256 FALSE), /* pcrel_offset */
257
258 /* The upper 16 bits of the GOT offset for the address of the
259 symbol. */
260 HOWTO (R_FRV_GOTHI, /* type */
261 0, /* rightshift */
262 2, /* size (0 = byte, 1 = short, 2 = long) */
263 16, /* bitsize */
264 FALSE, /* pc_relative */
265 0, /* bitpos */
266 complain_overflow_dont, /* complain_on_overflow */
267 bfd_elf_generic_reloc, /* special_function */
268 "R_FRV_GOTHI", /* name */
269 FALSE, /* partial_inplace */
270 0xffff, /* src_mask */
271 0xffff, /* dst_mask */
272 FALSE), /* pcrel_offset */
273
274 /* The lower 16 bits of the GOT offset for the address of the
275 symbol. */
276 HOWTO (R_FRV_GOTLO, /* type */
277 0, /* rightshift */
278 2, /* size (0 = byte, 1 = short, 2 = long) */
279 16, /* bitsize */
280 FALSE, /* pc_relative */
281 0, /* bitpos */
282 complain_overflow_dont, /* complain_on_overflow */
283 bfd_elf_generic_reloc, /* special_function */
284 "R_FRV_GOTLO", /* name */
285 FALSE, /* partial_inplace */
286 0xffff, /* src_mask */
287 0xffff, /* dst_mask */
288 FALSE), /* pcrel_offset */
289
290 /* The 32-bit address of the canonical descriptor of a function. */
291 HOWTO (R_FRV_FUNCDESC, /* type */
292 0, /* rightshift */
293 2, /* size (0 = byte, 1 = short, 2 = long) */
294 32, /* bitsize */
295 FALSE, /* pc_relative */
296 0, /* bitpos */
297 complain_overflow_bitfield, /* complain_on_overflow */
298 bfd_elf_generic_reloc, /* special_function */
299 "R_FRV_FUNCDESC", /* name */
300 FALSE, /* partial_inplace */
301 0xffffffff, /* src_mask */
302 0xffffffff, /* dst_mask */
303 FALSE), /* pcrel_offset */
304
305 /* A 12-bit signed operand with the GOT offset for the address of
306 canonical descriptor of a function. */
307 HOWTO (R_FRV_FUNCDESC_GOT12, /* type */
308 0, /* rightshift */
309 2, /* size (0 = byte, 1 = short, 2 = long) */
310 12, /* bitsize */
311 FALSE, /* pc_relative */
312 0, /* bitpos */
313 complain_overflow_signed, /* complain_on_overflow */
314 bfd_elf_generic_reloc, /* special_function */
315 "R_FRV_FUNCDESC_GOT12", /* name */
316 FALSE, /* partial_inplace */
317 0xfff, /* src_mask */
318 0xfff, /* dst_mask */
319 FALSE), /* pcrel_offset */
320
321 /* The upper 16 bits of the GOT offset for the address of the
322 canonical descriptor of a function. */
323 HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */
324 0, /* rightshift */
325 2, /* size (0 = byte, 1 = short, 2 = long) */
326 16, /* bitsize */
327 FALSE, /* pc_relative */
328 0, /* bitpos */
329 complain_overflow_dont, /* complain_on_overflow */
330 bfd_elf_generic_reloc, /* special_function */
331 "R_FRV_FUNCDESC_GOTHI", /* name */
332 FALSE, /* partial_inplace */
333 0xffff, /* src_mask */
334 0xffff, /* dst_mask */
335 FALSE), /* pcrel_offset */
336
337 /* The lower 16 bits of the GOT offset for the address of the
338 canonical descriptor of a function. */
339 HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */
340 0, /* rightshift */
341 2, /* size (0 = byte, 1 = short, 2 = long) */
342 16, /* bitsize */
343 FALSE, /* pc_relative */
344 0, /* bitpos */
345 complain_overflow_dont, /* complain_on_overflow */
346 bfd_elf_generic_reloc, /* special_function */
347 "R_FRV_FUNCDESC_GOTLO", /* name */
348 FALSE, /* partial_inplace */
349 0xffff, /* src_mask */
350 0xffff, /* dst_mask */
351 FALSE), /* pcrel_offset */
352
353 /* The 64-bit descriptor of a function. */
354 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
355 0, /* rightshift */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
357 64, /* bitsize */
358 FALSE, /* pc_relative */
359 0, /* bitpos */
360 complain_overflow_bitfield, /* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_FRV_FUNCDESC_VALUE", /* name */
363 FALSE, /* partial_inplace */
364 0xffffffff, /* src_mask */
365 0xffffffff, /* dst_mask */
366 FALSE), /* pcrel_offset */
367
368 /* A 12-bit signed operand with the GOT offset for the address of
369 canonical descriptor of a function. */
370 HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
371 0, /* rightshift */
372 2, /* size (0 = byte, 1 = short, 2 = long) */
373 12, /* bitsize */
374 FALSE, /* pc_relative */
375 0, /* bitpos */
376 complain_overflow_signed, /* complain_on_overflow */
377 bfd_elf_generic_reloc, /* special_function */
378 "R_FRV_FUNCDESC_GOTOFF12", /* name */
379 FALSE, /* partial_inplace */
380 0xfff, /* src_mask */
381 0xfff, /* dst_mask */
382 FALSE), /* pcrel_offset */
383
384 /* The upper 16 bits of the GOT offset for the address of the
385 canonical descriptor of a function. */
386 HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
387 0, /* rightshift */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
389 16, /* bitsize */
390 FALSE, /* pc_relative */
391 0, /* bitpos */
392 complain_overflow_dont, /* complain_on_overflow */
393 bfd_elf_generic_reloc, /* special_function */
394 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
395 FALSE, /* partial_inplace */
396 0xffff, /* src_mask */
397 0xffff, /* dst_mask */
398 FALSE), /* pcrel_offset */
399
400 /* The lower 16 bits of the GOT offset for the address of the
401 canonical descriptor of a function. */
402 HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
403 0, /* rightshift */
404 2, /* size (0 = byte, 1 = short, 2 = long) */
405 16, /* bitsize */
406 FALSE, /* pc_relative */
407 0, /* bitpos */
408 complain_overflow_dont, /* complain_on_overflow */
409 bfd_elf_generic_reloc, /* special_function */
410 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
411 FALSE, /* partial_inplace */
412 0xffff, /* src_mask */
413 0xffff, /* dst_mask */
414 FALSE), /* pcrel_offset */
415
416 /* A 12-bit signed operand with the GOT offset for the address of
417 the symbol. */
418 HOWTO (R_FRV_GOTOFF12, /* type */
419 0, /* rightshift */
420 2, /* size (0 = byte, 1 = short, 2 = long) */
421 12, /* bitsize */
422 FALSE, /* pc_relative */
423 0, /* bitpos */
424 complain_overflow_signed, /* complain_on_overflow */
425 bfd_elf_generic_reloc, /* special_function */
426 "R_FRV_GOTOFF12", /* name */
427 FALSE, /* partial_inplace */
428 0xfff, /* src_mask */
429 0xfff, /* dst_mask */
430 FALSE), /* pcrel_offset */
431
432 /* The upper 16 bits of the GOT offset for the address of the
433 symbol. */
434 HOWTO (R_FRV_GOTOFFHI, /* type */
435 0, /* rightshift */
436 2, /* size (0 = byte, 1 = short, 2 = long) */
437 16, /* bitsize */
438 FALSE, /* pc_relative */
439 0, /* bitpos */
440 complain_overflow_dont, /* complain_on_overflow */
441 bfd_elf_generic_reloc, /* special_function */
442 "R_FRV_GOTOFFHI", /* name */
443 FALSE, /* partial_inplace */
444 0xffff, /* src_mask */
445 0xffff, /* dst_mask */
446 FALSE), /* pcrel_offset */
447
448 /* The lower 16 bits of the GOT offset for the address of the
449 symbol. */
450 HOWTO (R_FRV_GOTOFFLO, /* type */
451 0, /* rightshift */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
453 16, /* bitsize */
454 FALSE, /* pc_relative */
455 0, /* bitpos */
456 complain_overflow_dont, /* complain_on_overflow */
457 bfd_elf_generic_reloc, /* special_function */
458 "R_FRV_GOTOFFLO", /* name */
459 FALSE, /* partial_inplace */
460 0xffff, /* src_mask */
461 0xffff, /* dst_mask */
462 FALSE), /* pcrel_offset */
463
464 /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
465 a thread-local symbol. If the symbol number is 0, it refers to
466 the module. */
467 HOWTO (R_FRV_GETTLSOFF, /* type */
468 2, /* rightshift */
469 2, /* size (0 = byte, 1 = short, 2 = long) */
470 26, /* bitsize */
471 TRUE, /* pc_relative */
472 0, /* bitpos */
473 complain_overflow_bitfield, /* complain_on_overflow */
474 bfd_elf_generic_reloc, /* special_function */
475 "R_FRV_GETTLSOFF", /* name */
476 FALSE, /* partial_inplace */
477 0x7e03ffff, /* src_mask */
478 0x7e03ffff, /* dst_mask */
479 TRUE), /* pcrel_offset */
480
481 /* A 64-bit TLS descriptor for a symbol. This relocation is only
482 valid as a REL, dynamic relocation. */
483 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
484 0, /* rightshift */
485 2, /* size (0 = byte, 1 = short, 2 = long) */
486 64, /* bitsize */
487 FALSE, /* pc_relative */
488 0, /* bitpos */
489 complain_overflow_bitfield, /* complain_on_overflow */
490 bfd_elf_generic_reloc, /* special_function */
491 "R_FRV_TLSDESC_VALUE", /* name */
492 FALSE, /* partial_inplace */
493 0xffffffff, /* src_mask */
494 0xffffffff, /* dst_mask */
495 FALSE), /* pcrel_offset */
496
497 /* A 12-bit signed operand with the GOT offset for the TLS
498 descriptor of the symbol. */
499 HOWTO (R_FRV_GOTTLSDESC12, /* type */
500 0, /* rightshift */
501 2, /* size (0 = byte, 1 = short, 2 = long) */
502 12, /* bitsize */
503 FALSE, /* pc_relative */
504 0, /* bitpos */
505 complain_overflow_signed, /* complain_on_overflow */
506 bfd_elf_generic_reloc, /* special_function */
507 "R_FRV_GOTTLSDESC12", /* name */
508 FALSE, /* partial_inplace */
509 0xfff, /* src_mask */
510 0xfff, /* dst_mask */
511 FALSE), /* pcrel_offset */
512
513 /* The upper 16 bits of the GOT offset for the TLS descriptor of the
514 symbol. */
515 HOWTO (R_FRV_GOTTLSDESCHI, /* type */
516 0, /* rightshift */
517 2, /* size (0 = byte, 1 = short, 2 = long) */
518 16, /* bitsize */
519 FALSE, /* pc_relative */
520 0, /* bitpos */
521 complain_overflow_dont, /* complain_on_overflow */
522 bfd_elf_generic_reloc, /* special_function */
523 "R_FRV_GOTTLSDESCHI", /* name */
524 FALSE, /* partial_inplace */
525 0xffff, /* src_mask */
526 0xffff, /* dst_mask */
527 FALSE), /* pcrel_offset */
528
529 /* The lower 16 bits of the GOT offset for the TLS descriptor of the
530 symbol. */
531 HOWTO (R_FRV_GOTTLSDESCLO, /* type */
532 0, /* rightshift */
533 2, /* size (0 = byte, 1 = short, 2 = long) */
534 16, /* bitsize */
535 FALSE, /* pc_relative */
536 0, /* bitpos */
537 complain_overflow_dont, /* complain_on_overflow */
538 bfd_elf_generic_reloc, /* special_function */
539 "R_FRV_GOTTLSDESCLO", /* name */
540 FALSE, /* partial_inplace */
541 0xffff, /* src_mask */
542 0xffff, /* dst_mask */
543 FALSE), /* pcrel_offset */
544
545 /* A 12-bit signed operand with the offset from the module base
546 address to the thread-local symbol address. */
547 HOWTO (R_FRV_TLSMOFF12, /* type */
548 0, /* rightshift */
549 2, /* size (0 = byte, 1 = short, 2 = long) */
550 12, /* bitsize */
551 FALSE, /* pc_relative */
552 0, /* bitpos */
553 complain_overflow_signed, /* complain_on_overflow */
554 bfd_elf_generic_reloc, /* special_function */
555 "R_FRV_TLSMOFF12", /* name */
556 FALSE, /* partial_inplace */
557 0xfff, /* src_mask */
558 0xfff, /* dst_mask */
559 FALSE), /* pcrel_offset */
560
561 /* The upper 16 bits of the offset from the module base address to
562 the thread-local symbol address. */
563 HOWTO (R_FRV_TLSMOFFHI, /* type */
564 0, /* rightshift */
565 2, /* size (0 = byte, 1 = short, 2 = long) */
566 16, /* bitsize */
567 FALSE, /* pc_relative */
568 0, /* bitpos */
569 complain_overflow_dont, /* complain_on_overflow */
570 bfd_elf_generic_reloc, /* special_function */
571 "R_FRV_TLSMOFFHI", /* name */
572 FALSE, /* partial_inplace */
573 0xffff, /* src_mask */
574 0xffff, /* dst_mask */
575 FALSE), /* pcrel_offset */
576
577 /* The lower 16 bits of the offset from the module base address to
578 the thread-local symbol address. */
579 HOWTO (R_FRV_TLSMOFFLO, /* type */
580 0, /* rightshift */
581 2, /* size (0 = byte, 1 = short, 2 = long) */
582 16, /* bitsize */
583 FALSE, /* pc_relative */
584 0, /* bitpos */
585 complain_overflow_dont, /* complain_on_overflow */
586 bfd_elf_generic_reloc, /* special_function */
587 "R_FRV_TLSMOFFLO", /* name */
588 FALSE, /* partial_inplace */
589 0xffff, /* src_mask */
590 0xffff, /* dst_mask */
591 FALSE), /* pcrel_offset */
592
593 /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
594 for a symbol. */
595 HOWTO (R_FRV_GOTTLSOFF12, /* type */
596 0, /* rightshift */
597 2, /* size (0 = byte, 1 = short, 2 = long) */
598 12, /* bitsize */
599 FALSE, /* pc_relative */
600 0, /* bitpos */
601 complain_overflow_signed, /* complain_on_overflow */
602 bfd_elf_generic_reloc, /* special_function */
603 "R_FRV_GOTTLSOFF12", /* name */
604 FALSE, /* partial_inplace */
605 0xfff, /* src_mask */
606 0xfff, /* dst_mask */
607 FALSE), /* pcrel_offset */
608
609 /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
610 symbol. */
611 HOWTO (R_FRV_GOTTLSOFFHI, /* type */
612 0, /* rightshift */
613 2, /* size (0 = byte, 1 = short, 2 = long) */
614 16, /* bitsize */
615 FALSE, /* pc_relative */
616 0, /* bitpos */
617 complain_overflow_dont, /* complain_on_overflow */
618 bfd_elf_generic_reloc, /* special_function */
619 "R_FRV_GOTTLSOFFHI", /* name */
620 FALSE, /* partial_inplace */
621 0xffff, /* src_mask */
622 0xffff, /* dst_mask */
623 FALSE), /* pcrel_offset */
624
625 /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
626 symbol. */
627 HOWTO (R_FRV_GOTTLSOFFLO, /* type */
628 0, /* rightshift */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
630 16, /* bitsize */
631 FALSE, /* pc_relative */
632 0, /* bitpos */
633 complain_overflow_dont, /* complain_on_overflow */
634 bfd_elf_generic_reloc, /* special_function */
635 "R_FRV_GOTTLSOFFLO", /* name */
636 FALSE, /* partial_inplace */
637 0xffff, /* src_mask */
638 0xffff, /* dst_mask */
639 FALSE), /* pcrel_offset */
640
641 /* The 32-bit offset from the thread pointer (not the module base
642 address) to a thread-local symbol. */
643 HOWTO (R_FRV_TLSOFF, /* type */
644 0, /* rightshift */
645 2, /* size (0 = byte, 1 = short, 2 = long) */
646 32, /* bitsize */
647 FALSE, /* pc_relative */
648 0, /* bitpos */
649 complain_overflow_dont, /* complain_on_overflow */
650 bfd_elf_generic_reloc, /* special_function */
651 "R_FRV_TLSOFF", /* name */
652 FALSE, /* partial_inplace */
653 0xffffffff, /* src_mask */
654 0xffffffff, /* dst_mask */
655 FALSE), /* pcrel_offset */
656
657 /* An annotation for linker relaxation, that denotes the
658 symbol+addend whose TLS descriptor is referenced by the sum of
659 the two input registers of an ldd instruction. */
660 HOWTO (R_FRV_TLSDESC_RELAX, /* type */
661 0, /* rightshift */
662 2, /* size (0 = byte, 1 = short, 2 = long) */
663 0, /* bitsize */
664 FALSE, /* pc_relative */
665 0, /* bitpos */
666 complain_overflow_dont, /* complain_on_overflow */
667 bfd_elf_generic_reloc, /* special_function */
668 "R_FRV_TLSDESC_RELAX", /* name */
669 FALSE, /* partial_inplace */
670 0, /* src_mask */
671 0, /* dst_mask */
672 FALSE), /* pcrel_offset */
673
674 /* An annotation for linker relaxation, that denotes the
675 symbol+addend whose TLS resolver entry point is given by the sum
676 of the two register operands of an calll instruction. */
677 HOWTO (R_FRV_GETTLSOFF_RELAX, /* type */
678 0, /* rightshift */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
680 0, /* bitsize */
681 FALSE, /* pc_relative */
682 0, /* bitpos */
683 complain_overflow_dont, /* complain_on_overflow */
684 bfd_elf_generic_reloc, /* special_function */
685 "R_FRV_GETTLSOFF_RELAX", /* name */
686 FALSE, /* partial_inplace */
687 0, /* src_mask */
688 0, /* dst_mask */
689 FALSE), /* pcrel_offset */
690
691 /* An annotation for linker relaxation, that denotes the
692 symbol+addend whose TLS offset GOT entry is given by the sum of
693 the two input registers of an ld instruction. */
694 HOWTO (R_FRV_TLSOFF_RELAX, /* type */
695 0, /* rightshift */
696 2, /* size (0 = byte, 1 = short, 2 = long) */
697 0, /* bitsize */
698 FALSE, /* pc_relative */
699 0, /* bitpos */
700 complain_overflow_bitfield, /* complain_on_overflow */
701 bfd_elf_generic_reloc, /* special_function */
702 "R_FRV_TLSOFF_RELAX", /* name */
703 FALSE, /* partial_inplace */
704 0, /* src_mask */
705 0, /* dst_mask */
706 FALSE), /* pcrel_offset */
707
708 /* A 32-bit offset from the module base address to
709 the thread-local symbol address. */
710 HOWTO (R_FRV_TLSMOFF, /* type */
711 0, /* rightshift */
712 2, /* size (0 = byte, 1 = short, 2 = long) */
713 32, /* bitsize */
714 FALSE, /* pc_relative */
715 0, /* bitpos */
716 complain_overflow_dont, /* complain_on_overflow */
717 bfd_elf_generic_reloc, /* special_function */
718 "R_FRV_TLSMOFF", /* name */
719 FALSE, /* partial_inplace */
720 0xffffffff, /* src_mask */
721 0xffffffff, /* dst_mask */
722 FALSE), /* pcrel_offset */
723 };
724
725 /* GNU extension to record C++ vtable hierarchy. */
726 static reloc_howto_type elf32_frv_vtinherit_howto =
727 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
728 0, /* rightshift */
729 2, /* size (0 = byte, 1 = short, 2 = long) */
730 0, /* bitsize */
731 FALSE, /* pc_relative */
732 0, /* bitpos */
733 complain_overflow_dont, /* complain_on_overflow */
734 NULL, /* special_function */
735 "R_FRV_GNU_VTINHERIT", /* name */
736 FALSE, /* partial_inplace */
737 0, /* src_mask */
738 0, /* dst_mask */
739 FALSE); /* pcrel_offset */
740
741 /* GNU extension to record C++ vtable member usage. */
742 static reloc_howto_type elf32_frv_vtentry_howto =
743 HOWTO (R_FRV_GNU_VTENTRY, /* type */
744 0, /* rightshift */
745 2, /* size (0 = byte, 1 = short, 2 = long) */
746 0, /* bitsize */
747 FALSE, /* pc_relative */
748 0, /* bitpos */
749 complain_overflow_dont, /* complain_on_overflow */
750 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
751 "R_FRV_GNU_VTENTRY", /* name */
752 FALSE, /* partial_inplace */
753 0, /* src_mask */
754 0, /* dst_mask */
755 FALSE); /* pcrel_offset */
756
757 /* The following 3 relocations are REL. The only difference to the
758 entries in the table above are that partial_inplace is TRUE. */
759 static reloc_howto_type elf32_frv_rel_32_howto =
760 HOWTO (R_FRV_32, /* type */
761 0, /* rightshift */
762 2, /* size (0 = byte, 1 = short, 2 = long) */
763 32, /* bitsize */
764 FALSE, /* pc_relative */
765 0, /* bitpos */
766 complain_overflow_bitfield, /* complain_on_overflow */
767 bfd_elf_generic_reloc, /* special_function */
768 "R_FRV_32", /* name */
769 TRUE, /* partial_inplace */
770 0xffffffff, /* src_mask */
771 0xffffffff, /* dst_mask */
772 FALSE); /* pcrel_offset */
773
774 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
775 HOWTO (R_FRV_FUNCDESC, /* type */
776 0, /* rightshift */
777 2, /* size (0 = byte, 1 = short, 2 = long) */
778 32, /* bitsize */
779 FALSE, /* pc_relative */
780 0, /* bitpos */
781 complain_overflow_bitfield, /* complain_on_overflow */
782 bfd_elf_generic_reloc, /* special_function */
783 "R_FRV_FUNCDESC", /* name */
784 TRUE, /* partial_inplace */
785 0xffffffff, /* src_mask */
786 0xffffffff, /* dst_mask */
787 FALSE); /* pcrel_offset */
788
789 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
790 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
791 0, /* rightshift */
792 2, /* size (0 = byte, 1 = short, 2 = long) */
793 64, /* bitsize */
794 FALSE, /* pc_relative */
795 0, /* bitpos */
796 complain_overflow_bitfield, /* complain_on_overflow */
797 bfd_elf_generic_reloc, /* special_function */
798 "R_FRV_FUNCDESC_VALUE", /* name */
799 TRUE, /* partial_inplace */
800 0xffffffff, /* src_mask */
801 0xffffffff, /* dst_mask */
802 FALSE); /* pcrel_offset */
803
804 static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
805 /* A 64-bit TLS descriptor for a symbol. The first word resolves to
806 an entry point, and the second resolves to a special argument.
807 If the symbol turns out to be in static TLS, the entry point is a
808 return instruction, and the special argument is the TLS offset
809 for the symbol. If it's in dynamic TLS, the entry point is a TLS
810 offset resolver, and the special argument is a pointer to a data
811 structure allocated by the dynamic loader, containing the GOT
812 address for the offset resolver, the module id, the offset within
813 the module, and anything else the TLS offset resolver might need
814 to determine the TLS offset for the symbol in the running
815 thread. */
816 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
817 0, /* rightshift */
818 2, /* size (0 = byte, 1 = short, 2 = long) */
819 64, /* bitsize */
820 FALSE, /* pc_relative */
821 0, /* bitpos */
822 complain_overflow_bitfield, /* complain_on_overflow */
823 bfd_elf_generic_reloc, /* special_function */
824 "R_FRV_TLSDESC_VALUE", /* name */
825 TRUE, /* partial_inplace */
826 0xffffffff, /* src_mask */
827 0xffffffff, /* dst_mask */
828 FALSE); /* pcrel_offset */
829
830 static reloc_howto_type elf32_frv_rel_tlsoff_howto =
831 /* The 32-bit offset from the thread pointer (not the module base
832 address) to a thread-local symbol. */
833 HOWTO (R_FRV_TLSOFF, /* type */
834 0, /* rightshift */
835 2, /* size (0 = byte, 1 = short, 2 = long) */
836 32, /* bitsize */
837 FALSE, /* pc_relative */
838 0, /* bitpos */
839 complain_overflow_bitfield, /* complain_on_overflow */
840 bfd_elf_generic_reloc, /* special_function */
841 "R_FRV_TLSOFF", /* name */
842 TRUE, /* partial_inplace */
843 0xffffffff, /* src_mask */
844 0xffffffff, /* dst_mask */
845 FALSE); /* pcrel_offset */
846
847
848 \f
849 extern const bfd_target bfd_elf32_frvfdpic_vec;
850 #define IS_FDPIC(bfd) ((bfd)->xvec == &bfd_elf32_frvfdpic_vec)
851
852 /* An extension of the elf hash table data structure, containing some
853 additional FRV-specific data. */
854 struct frvfdpic_elf_link_hash_table
855 {
856 struct elf_link_hash_table elf;
857
858 /* A pointer to the .got section. */
859 asection *sgot;
860 /* A pointer to the .rel.got section. */
861 asection *sgotrel;
862 /* A pointer to the .rofixup section. */
863 asection *sgotfixup;
864 /* A pointer to the .plt section. */
865 asection *splt;
866 /* A pointer to the .rel.plt section. */
867 asection *spltrel;
868 /* GOT base offset. */
869 bfd_vma got0;
870 /* Location of the first non-lazy PLT entry, i.e., the number of
871 bytes taken by lazy PLT entries. If locally-bound TLS
872 descriptors require a ret instruction, it will be placed at this
873 offset. */
874 bfd_vma plt0;
875 /* A hash table holding information about which symbols were
876 referenced with which PIC-related relocations. */
877 struct htab *relocs_info;
878 /* Summary reloc information collected by
879 _frvfdpic_count_got_plt_entries. */
880 struct _frvfdpic_dynamic_got_info *g;
881 };
882
883 /* Get the FRV ELF linker hash table from a link_info structure. */
884
885 #define frvfdpic_hash_table(info) \
886 ((struct frvfdpic_elf_link_hash_table *) ((info)->hash))
887
888 #define frvfdpic_got_section(info) \
889 (frvfdpic_hash_table (info)->sgot)
890 #define frvfdpic_gotrel_section(info) \
891 (frvfdpic_hash_table (info)->sgotrel)
892 #define frvfdpic_gotfixup_section(info) \
893 (frvfdpic_hash_table (info)->sgotfixup)
894 #define frvfdpic_plt_section(info) \
895 (frvfdpic_hash_table (info)->splt)
896 #define frvfdpic_pltrel_section(info) \
897 (frvfdpic_hash_table (info)->spltrel)
898 #define frvfdpic_relocs_info(info) \
899 (frvfdpic_hash_table (info)->relocs_info)
900 #define frvfdpic_got_initial_offset(info) \
901 (frvfdpic_hash_table (info)->got0)
902 #define frvfdpic_plt_initial_offset(info) \
903 (frvfdpic_hash_table (info)->plt0)
904 #define frvfdpic_dynamic_got_plt_info(info) \
905 (frvfdpic_hash_table (info)->g)
906
907 /* Currently it's the same, but if some day we have a reason to change
908 it, we'd better be using a different macro.
909
910 FIXME: if there's any TLS PLT entry that uses local-exec or
911 initial-exec models, we could use the ret at the end of any of them
912 instead of adding one more. */
913 #define frvfdpic_plt_tls_ret_offset(info) \
914 (frvfdpic_plt_initial_offset (info))
915
916 /* The name of the dynamic interpreter. This is put in the .interp
917 section. */
918
919 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
920
921 #define DEFAULT_STACK_SIZE 0x20000
922
923 /* This structure is used to collect the number of entries present in
924 each addressable range of the got. */
925 struct _frvfdpic_dynamic_got_info
926 {
927 /* Several bits of information about the current link. */
928 struct bfd_link_info *info;
929 /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
930 ranges. */
931 bfd_vma got12, gotlos, gothilo;
932 /* Total GOT size needed for function descriptor entries within the 12-,
933 16- or 32-bit ranges. */
934 bfd_vma fd12, fdlos, fdhilo;
935 /* Total GOT size needed by function descriptor entries referenced
936 in PLT entries, that would be profitable to place in offsets
937 close to the PIC register. */
938 bfd_vma fdplt;
939 /* Total PLT size needed by lazy PLT entries. */
940 bfd_vma lzplt;
941 /* Total GOT size needed for TLS descriptor entries within the 12-,
942 16- or 32-bit ranges. */
943 bfd_vma tlsd12, tlsdlos, tlsdhilo;
944 /* Total GOT size needed by TLS descriptors referenced in PLT
945 entries, that would be profitable to place in offers close to the
946 PIC register. */
947 bfd_vma tlsdplt;
948 /* Total PLT size needed by TLS lazy PLT entries. */
949 bfd_vma tlslzplt;
950 /* Number of relocations carried over from input object files. */
951 unsigned long relocs;
952 /* Number of fixups introduced by relocations in input object files. */
953 unsigned long fixups;
954 /* The number of fixups that reference the ret instruction added to
955 the PLT for locally-resolved TLS descriptors. */
956 unsigned long tls_ret_refs;
957 };
958
959 /* This structure is used to assign offsets to got entries, function
960 descriptors, plt entries and lazy plt entries. */
961
962 struct _frvfdpic_dynamic_got_plt_info
963 {
964 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
965 struct _frvfdpic_dynamic_got_info g;
966
967 /* For each addressable range, we record a MAX (positive) and MIN
968 (negative) value. CUR is used to assign got entries, and it's
969 incremented from an initial positive value to MAX, then from MIN
970 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
971 assign function descriptors, and it's decreased from an initial
972 non-positive value to MIN, then from MAX down to CUR (unless CUR
973 wraps around first). All of MIN, MAX, CUR and FDCUR always point
974 to even words. ODD, if non-zero, indicates an odd word to be
975 used for the next got entry, otherwise CUR is used and
976 incremented by a pair of words, wrapping around when it reaches
977 MAX. FDCUR is decremented (and wrapped) before the next function
978 descriptor is chosen. FDPLT indicates the number of remaining
979 slots that can be used for function descriptors used only by PLT
980 entries.
981
982 TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
983 starts as MAX, and grows up to TMAX, then wraps around to TMIN
984 and grows up to MIN. TLSDPLT indicates the number of remaining
985 slots that can be used for TLS descriptors used only by TLS PLT
986 entries. */
987 struct _frvfdpic_dynamic_got_alloc_data
988 {
989 bfd_signed_vma max, cur, odd, fdcur, min;
990 bfd_signed_vma tmax, tcur, tmin;
991 bfd_vma fdplt, tlsdplt;
992 } got12, gotlos, gothilo;
993 };
994
995 /* Create an FRV ELF linker hash table. */
996
997 static struct bfd_link_hash_table *
998 frvfdpic_elf_link_hash_table_create (bfd *abfd)
999 {
1000 struct frvfdpic_elf_link_hash_table *ret;
1001 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
1002
1003 ret = bfd_zalloc (abfd, amt);
1004 if (ret == NULL)
1005 return NULL;
1006
1007 if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd,
1008 _bfd_elf_link_hash_newfunc))
1009 {
1010 free (ret);
1011 return NULL;
1012 }
1013
1014 return &ret->elf.root;
1015 }
1016
1017 /* Decide whether a reference to a symbol can be resolved locally or
1018 not. If the symbol is protected, we want the local address, but
1019 its function descriptor must be assigned by the dynamic linker. */
1020 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
1021 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
1022 || ! elf_hash_table (INFO)->dynamic_sections_created)
1023 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
1024 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
1025
1026 /* This structure collects information on what kind of GOT, PLT or
1027 function descriptors are required by relocations that reference a
1028 certain symbol. */
1029 struct frvfdpic_relocs_info
1030 {
1031 /* The index of the symbol, as stored in the relocation r_info, if
1032 we have a local symbol; -1 otherwise. */
1033 long symndx;
1034 union
1035 {
1036 /* The input bfd in which the symbol is defined, if it's a local
1037 symbol. */
1038 bfd *abfd;
1039 /* If symndx == -1, the hash table entry corresponding to a global
1040 symbol (even if it turns out to bind locally, in which case it
1041 should ideally be replaced with section's symndx + addend). */
1042 struct elf_link_hash_entry *h;
1043 } d;
1044 /* The addend of the relocation that references the symbol. */
1045 bfd_vma addend;
1046
1047 /* The fields above are used to identify an entry. The fields below
1048 contain information on how an entry is used and, later on, which
1049 locations it was assigned. */
1050 /* The following 3 fields record whether the symbol+addend above was
1051 ever referenced with a GOT relocation. The 12 suffix indicates a
1052 GOT12 relocation; los is used for GOTLO relocations that are not
1053 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1054 pairs. */
1055 unsigned got12:1;
1056 unsigned gotlos:1;
1057 unsigned gothilo:1;
1058 /* Whether a FUNCDESC relocation references symbol+addend. */
1059 unsigned fd:1;
1060 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1061 unsigned fdgot12:1;
1062 unsigned fdgotlos:1;
1063 unsigned fdgothilo:1;
1064 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1065 unsigned fdgoff12:1;
1066 unsigned fdgofflos:1;
1067 unsigned fdgoffhilo:1;
1068 /* Whether a GETTLSOFF relocation references symbol+addend. */
1069 unsigned tlsplt:1;
1070 /* FIXME: we should probably add tlspltdesc, tlspltoff and
1071 tlspltimm, to tell what kind of TLS PLT entry we're generating.
1072 We might instead just pre-compute flags telling whether the
1073 object is suitable for local exec, initial exec or general
1074 dynamic addressing, and use that all over the place. We could
1075 also try to do a better job of merging TLSOFF and TLSDESC entries
1076 in main executables, but perhaps we can get rid of TLSDESC
1077 entirely in them instead. */
1078 /* Whether a GOTTLSDESC relocation references symbol+addend. */
1079 unsigned tlsdesc12:1;
1080 unsigned tlsdesclos:1;
1081 unsigned tlsdeschilo:1;
1082 /* Whether a GOTTLSOFF relocation references symbol+addend. */
1083 unsigned tlsoff12:1;
1084 unsigned tlsofflos:1;
1085 unsigned tlsoffhilo:1;
1086 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1087 GOTOFFHI relocations. The addend doesn't really matter, since we
1088 envision that this will only be used to check whether the symbol
1089 is mapped to the same segment as the got. */
1090 unsigned gotoff:1;
1091 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1092 unsigned call:1;
1093 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1094 relocation. */
1095 unsigned sym:1;
1096 /* Whether we need a PLT entry for a symbol. Should be implied by
1097 something like:
1098 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
1099 unsigned plt:1;
1100 /* Whether a function descriptor should be created in this link unit
1101 for symbol+addend. Should be implied by something like:
1102 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1103 || ((fd || fdgot12 || fdgotlos || fdgothilo)
1104 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
1105 unsigned privfd:1;
1106 /* Whether a lazy PLT entry is needed for this symbol+addend.
1107 Should be implied by something like:
1108 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1109 && ! (info->flags & DF_BIND_NOW)) */
1110 unsigned lazyplt:1;
1111 /* Whether we've already emitted GOT relocations and PLT entries as
1112 needed for this symbol. */
1113 unsigned done:1;
1114
1115 /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1116 R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1117 symbol+addend. */
1118 unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1119
1120 /* The number of .rofixups entries and dynamic relocations allocated
1121 for this symbol, minus any that might have already been used. */
1122 unsigned fixups, dynrelocs;
1123
1124 /* The offsets of the GOT entries assigned to symbol+addend, to the
1125 function descriptor's address, and to a function descriptor,
1126 respectively. Should be zero if unassigned. The offsets are
1127 counted from the value that will be assigned to the PIC register,
1128 not from the beginning of the .got section. */
1129 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1130 /* The offsets of the PLT entries assigned to symbol+addend,
1131 non-lazy and lazy, respectively. If unassigned, should be
1132 (bfd_vma)-1. */
1133 bfd_vma plt_entry, lzplt_entry;
1134 /* The offsets of the GOT entries for TLS offset and TLS descriptor. */
1135 bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1136 /* The offset of the TLS offset PLT entry. */
1137 bfd_vma tlsplt_entry;
1138 };
1139
1140 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
1141 static hashval_t
1142 frvfdpic_relocs_info_hash (const void *entry_)
1143 {
1144 const struct frvfdpic_relocs_info *entry = entry_;
1145
1146 return (entry->symndx == -1
1147 ? (long) entry->d.h->root.root.hash
1148 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1149 }
1150
1151 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1152 identical. */
1153 static int
1154 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1155 {
1156 const struct frvfdpic_relocs_info *e1 = entry1;
1157 const struct frvfdpic_relocs_info *e2 = entry2;
1158
1159 return e1->symndx == e2->symndx && e1->addend == e2->addend
1160 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1161 }
1162
1163 /* Find or create an entry in a hash table HT that matches the key
1164 fields of the given ENTRY. If it's not found, memory for a new
1165 entry is allocated in ABFD's obstack. */
1166 static struct frvfdpic_relocs_info *
1167 frvfdpic_relocs_info_find (struct htab *ht,
1168 bfd *abfd,
1169 const struct frvfdpic_relocs_info *entry,
1170 enum insert_option insert)
1171 {
1172 struct frvfdpic_relocs_info **loc =
1173 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1174
1175 if (! loc)
1176 return NULL;
1177
1178 if (*loc)
1179 return *loc;
1180
1181 *loc = bfd_zalloc (abfd, sizeof (**loc));
1182
1183 if (! *loc)
1184 return *loc;
1185
1186 (*loc)->symndx = entry->symndx;
1187 (*loc)->d = entry->d;
1188 (*loc)->addend = entry->addend;
1189 (*loc)->plt_entry = (bfd_vma)-1;
1190 (*loc)->lzplt_entry = (bfd_vma)-1;
1191 (*loc)->tlsplt_entry = (bfd_vma)-1;
1192
1193 return *loc;
1194 }
1195
1196 /* Obtain the address of the entry in HT associated with H's symbol +
1197 addend, creating a new entry if none existed. ABFD is only used
1198 for memory allocation purposes. */
1199 inline static struct frvfdpic_relocs_info *
1200 frvfdpic_relocs_info_for_global (struct htab *ht,
1201 bfd *abfd,
1202 struct elf_link_hash_entry *h,
1203 bfd_vma addend,
1204 enum insert_option insert)
1205 {
1206 struct frvfdpic_relocs_info entry;
1207
1208 entry.symndx = -1;
1209 entry.d.h = h;
1210 entry.addend = addend;
1211
1212 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1213 }
1214
1215 /* Obtain the address of the entry in HT associated with the SYMNDXth
1216 local symbol of the input bfd ABFD, plus the addend, creating a new
1217 entry if none existed. */
1218 inline static struct frvfdpic_relocs_info *
1219 frvfdpic_relocs_info_for_local (struct htab *ht,
1220 bfd *abfd,
1221 long symndx,
1222 bfd_vma addend,
1223 enum insert_option insert)
1224 {
1225 struct frvfdpic_relocs_info entry;
1226
1227 entry.symndx = symndx;
1228 entry.d.abfd = abfd;
1229 entry.addend = addend;
1230
1231 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1232 }
1233
1234 /* Merge fields set by check_relocs() of two entries that end up being
1235 mapped to the same (presumably global) symbol. */
1236
1237 inline static void
1238 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1239 struct frvfdpic_relocs_info const *e1)
1240 {
1241 e2->got12 |= e1->got12;
1242 e2->gotlos |= e1->gotlos;
1243 e2->gothilo |= e1->gothilo;
1244 e2->fd |= e1->fd;
1245 e2->fdgot12 |= e1->fdgot12;
1246 e2->fdgotlos |= e1->fdgotlos;
1247 e2->fdgothilo |= e1->fdgothilo;
1248 e2->fdgoff12 |= e1->fdgoff12;
1249 e2->fdgofflos |= e1->fdgofflos;
1250 e2->fdgoffhilo |= e1->fdgoffhilo;
1251 e2->tlsplt |= e1->tlsplt;
1252 e2->tlsdesc12 |= e1->tlsdesc12;
1253 e2->tlsdesclos |= e1->tlsdesclos;
1254 e2->tlsdeschilo |= e1->tlsdeschilo;
1255 e2->tlsoff12 |= e1->tlsoff12;
1256 e2->tlsofflos |= e1->tlsofflos;
1257 e2->tlsoffhilo |= e1->tlsoffhilo;
1258 e2->gotoff |= e1->gotoff;
1259 e2->call |= e1->call;
1260 e2->sym |= e1->sym;
1261 }
1262
1263 /* Every block of 65535 lazy PLT entries shares a single call to the
1264 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1265 32767, counting from 0). All other lazy PLT entries branch to it
1266 in a single instruction. */
1267
1268 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1269 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1270
1271 /* Add a dynamic relocation to the SRELOC section. */
1272
1273 inline static bfd_vma
1274 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1275 int reloc_type, long dynindx, bfd_vma addend,
1276 struct frvfdpic_relocs_info *entry)
1277 {
1278 Elf_Internal_Rela outrel;
1279 bfd_vma reloc_offset;
1280
1281 outrel.r_offset = offset;
1282 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1283 outrel.r_addend = addend;
1284
1285 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1286 BFD_ASSERT (reloc_offset < sreloc->size);
1287 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1288 sreloc->contents + reloc_offset);
1289 sreloc->reloc_count++;
1290
1291 /* If the entry's index is zero, this relocation was probably to a
1292 linkonce section that got discarded. We reserved a dynamic
1293 relocation, but it was for another entry than the one we got at
1294 the time of emitting the relocation. Unfortunately there's no
1295 simple way for us to catch this situation, since the relocation
1296 is cleared right before calling relocate_section, at which point
1297 we no longer know what the relocation used to point to. */
1298 if (entry->symndx)
1299 {
1300 BFD_ASSERT (entry->dynrelocs > 0);
1301 entry->dynrelocs--;
1302 }
1303
1304 return reloc_offset;
1305 }
1306
1307 /* Add a fixup to the ROFIXUP section. */
1308
1309 static bfd_vma
1310 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1311 struct frvfdpic_relocs_info *entry)
1312 {
1313 bfd_vma fixup_offset;
1314
1315 if (rofixup->flags & SEC_EXCLUDE)
1316 return -1;
1317
1318 fixup_offset = rofixup->reloc_count * 4;
1319 if (rofixup->contents)
1320 {
1321 BFD_ASSERT (fixup_offset < rofixup->size);
1322 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1323 }
1324 rofixup->reloc_count++;
1325
1326 if (entry && entry->symndx)
1327 {
1328 /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1329 above. */
1330 BFD_ASSERT (entry->fixups > 0);
1331 entry->fixups--;
1332 }
1333
1334 return fixup_offset;
1335 }
1336
1337 /* Find the segment number in which OSEC, and output section, is
1338 located. */
1339
1340 static unsigned
1341 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1342 {
1343 struct elf_segment_map *m;
1344 Elf_Internal_Phdr *p;
1345
1346 /* Find the segment that contains the output_section. */
1347 for (m = elf_tdata (output_bfd)->segment_map,
1348 p = elf_tdata (output_bfd)->phdr;
1349 m != NULL;
1350 m = m->next, p++)
1351 {
1352 int i;
1353
1354 for (i = m->count - 1; i >= 0; i--)
1355 if (m->sections[i] == osec)
1356 break;
1357
1358 if (i >= 0)
1359 break;
1360 }
1361
1362 return p - elf_tdata (output_bfd)->phdr;
1363 }
1364
1365 inline static bfd_boolean
1366 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1367 {
1368 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1369
1370 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1371 }
1372
1373 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1374
1375 /* Return the base VMA address which should be subtracted from real addresses
1376 when resolving TLSMOFF relocation.
1377 This is PT_TLS segment p_vaddr, plus the 2048-16 bias. */
1378
1379 static bfd_vma
1380 tls_biased_base (struct bfd_link_info *info)
1381 {
1382 /* If tls_sec is NULL, we should have signalled an error already. */
1383 if (elf_hash_table (info)->tls_sec == NULL)
1384 return FRVFDPIC_TLS_BIAS;
1385 return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1386 }
1387
1388 /* Generate relocations for GOT entries, function descriptors, and
1389 code for PLT and lazy PLT entries. */
1390
1391 inline static bfd_boolean
1392 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1393 bfd *output_bfd,
1394 struct bfd_link_info *info,
1395 asection *sec,
1396 Elf_Internal_Sym *sym,
1397 bfd_vma addend)
1398
1399 {
1400 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1401 int dynindx = -1;
1402
1403 if (entry->done)
1404 return TRUE;
1405 entry->done = 1;
1406
1407 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1408 || entry->tlsoff_entry || entry->tlsdesc_entry)
1409 {
1410 /* If the symbol is dynamic, consider it for dynamic
1411 relocations, otherwise decay to section + offset. */
1412 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1413 dynindx = entry->d.h->dynindx;
1414 else
1415 {
1416 if (sec->output_section
1417 && ! bfd_is_abs_section (sec->output_section)
1418 && ! bfd_is_und_section (sec->output_section))
1419 dynindx = elf_section_data (sec->output_section)->dynindx;
1420 else
1421 dynindx = 0;
1422 }
1423 }
1424
1425 /* Generate relocation for GOT entry pointing to the symbol. */
1426 if (entry->got_entry)
1427 {
1428 int idx = dynindx;
1429 bfd_vma ad = addend;
1430
1431 /* If the symbol is dynamic but binds locally, use
1432 section+offset. */
1433 if (sec && (entry->symndx != -1
1434 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1435 {
1436 if (entry->symndx == -1)
1437 ad += entry->d.h->root.u.def.value;
1438 else
1439 ad += sym->st_value;
1440 ad += sec->output_offset;
1441 if (sec->output_section && elf_section_data (sec->output_section))
1442 idx = elf_section_data (sec->output_section)->dynindx;
1443 else
1444 idx = 0;
1445 }
1446
1447 /* If we're linking an executable at a fixed address, we can
1448 omit the dynamic relocation as long as the symbol is local to
1449 this module. */
1450 if (info->executable && !info->pie
1451 && (entry->symndx != -1
1452 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1453 {
1454 if (sec)
1455 ad += sec->output_section->vma;
1456 if (entry->symndx != -1
1457 || entry->d.h->root.type != bfd_link_hash_undefweak)
1458 _frvfdpic_add_rofixup (output_bfd,
1459 frvfdpic_gotfixup_section (info),
1460 frvfdpic_got_section (info)->output_section
1461 ->vma
1462 + frvfdpic_got_section (info)->output_offset
1463 + frvfdpic_got_initial_offset (info)
1464 + entry->got_entry, entry);
1465 }
1466 else
1467 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1468 _bfd_elf_section_offset
1469 (output_bfd, info,
1470 frvfdpic_got_section (info),
1471 frvfdpic_got_initial_offset (info)
1472 + entry->got_entry)
1473 + frvfdpic_got_section (info)
1474 ->output_section->vma
1475 + frvfdpic_got_section (info)->output_offset,
1476 R_FRV_32, idx, ad, entry);
1477
1478 bfd_put_32 (output_bfd, ad,
1479 frvfdpic_got_section (info)->contents
1480 + frvfdpic_got_initial_offset (info)
1481 + entry->got_entry);
1482 }
1483
1484 /* Generate relocation for GOT entry pointing to a canonical
1485 function descriptor. */
1486 if (entry->fdgot_entry)
1487 {
1488 int reloc, idx;
1489 bfd_vma ad = 0;
1490
1491 if (! (entry->symndx == -1
1492 && entry->d.h->root.type == bfd_link_hash_undefweak
1493 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1494 {
1495 /* If the symbol is dynamic and there may be dynamic symbol
1496 resolution because we are, or are linked with, a shared
1497 library, emit a FUNCDESC relocation such that the dynamic
1498 linker will allocate the function descriptor. If the
1499 symbol needs a non-local function descriptor but binds
1500 locally (e.g., its visibility is protected, emit a
1501 dynamic relocation decayed to section+offset. */
1502 if (entry->symndx == -1
1503 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1504 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1505 && !(info->executable && !info->pie))
1506 {
1507 reloc = R_FRV_FUNCDESC;
1508 idx = elf_section_data (entry->d.h->root.u.def.section
1509 ->output_section)->dynindx;
1510 ad = entry->d.h->root.u.def.section->output_offset
1511 + entry->d.h->root.u.def.value;
1512 }
1513 else if (entry->symndx == -1
1514 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1515 {
1516 reloc = R_FRV_FUNCDESC;
1517 idx = dynindx;
1518 ad = addend;
1519 if (ad)
1520 {
1521 (*info->callbacks->reloc_dangerous)
1522 (info, _("relocation requires zero addend"),
1523 elf_hash_table (info)->dynobj,
1524 frvfdpic_got_section (info),
1525 entry->fdgot_entry);
1526 return FALSE;
1527 }
1528 }
1529 else
1530 {
1531 /* Otherwise, we know we have a private function descriptor,
1532 so reference it directly. */
1533 if (elf_hash_table (info)->dynamic_sections_created)
1534 BFD_ASSERT (entry->privfd);
1535 reloc = R_FRV_32;
1536 idx = elf_section_data (frvfdpic_got_section (info)
1537 ->output_section)->dynindx;
1538 ad = frvfdpic_got_section (info)->output_offset
1539 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1540 }
1541
1542 /* If there is room for dynamic symbol resolution, emit the
1543 dynamic relocation. However, if we're linking an
1544 executable at a fixed location, we won't have emitted a
1545 dynamic symbol entry for the got section, so idx will be
1546 zero, which means we can and should compute the address
1547 of the private descriptor ourselves. */
1548 if (info->executable && !info->pie
1549 && (entry->symndx != -1
1550 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1551 {
1552 ad += frvfdpic_got_section (info)->output_section->vma;
1553 _frvfdpic_add_rofixup (output_bfd,
1554 frvfdpic_gotfixup_section (info),
1555 frvfdpic_got_section (info)
1556 ->output_section->vma
1557 + frvfdpic_got_section (info)
1558 ->output_offset
1559 + frvfdpic_got_initial_offset (info)
1560 + entry->fdgot_entry, entry);
1561 }
1562 else
1563 _frvfdpic_add_dyn_reloc (output_bfd,
1564 frvfdpic_gotrel_section (info),
1565 _bfd_elf_section_offset
1566 (output_bfd, info,
1567 frvfdpic_got_section (info),
1568 frvfdpic_got_initial_offset (info)
1569 + entry->fdgot_entry)
1570 + frvfdpic_got_section (info)
1571 ->output_section->vma
1572 + frvfdpic_got_section (info)
1573 ->output_offset,
1574 reloc, idx, ad, entry);
1575 }
1576
1577 bfd_put_32 (output_bfd, ad,
1578 frvfdpic_got_section (info)->contents
1579 + frvfdpic_got_initial_offset (info)
1580 + entry->fdgot_entry);
1581 }
1582
1583 /* Generate relocation to fill in a private function descriptor in
1584 the GOT. */
1585 if (entry->fd_entry)
1586 {
1587 int idx = dynindx;
1588 bfd_vma ad = addend;
1589 bfd_vma ofst;
1590 long lowword, highword;
1591
1592 /* If the symbol is dynamic but binds locally, use
1593 section+offset. */
1594 if (sec && (entry->symndx != -1
1595 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1596 {
1597 if (entry->symndx == -1)
1598 ad += entry->d.h->root.u.def.value;
1599 else
1600 ad += sym->st_value;
1601 ad += sec->output_offset;
1602 if (sec->output_section && elf_section_data (sec->output_section))
1603 idx = elf_section_data (sec->output_section)->dynindx;
1604 else
1605 idx = 0;
1606 }
1607
1608 /* If we're linking an executable at a fixed address, we can
1609 omit the dynamic relocation as long as the symbol is local to
1610 this module. */
1611 if (info->executable && !info->pie
1612 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1613 {
1614 if (sec)
1615 ad += sec->output_section->vma;
1616 ofst = 0;
1617 if (entry->symndx != -1
1618 || entry->d.h->root.type != bfd_link_hash_undefweak)
1619 {
1620 _frvfdpic_add_rofixup (output_bfd,
1621 frvfdpic_gotfixup_section (info),
1622 frvfdpic_got_section (info)
1623 ->output_section->vma
1624 + frvfdpic_got_section (info)
1625 ->output_offset
1626 + frvfdpic_got_initial_offset (info)
1627 + entry->fd_entry, entry);
1628 _frvfdpic_add_rofixup (output_bfd,
1629 frvfdpic_gotfixup_section (info),
1630 frvfdpic_got_section (info)
1631 ->output_section->vma
1632 + frvfdpic_got_section (info)
1633 ->output_offset
1634 + frvfdpic_got_initial_offset (info)
1635 + entry->fd_entry + 4, entry);
1636 }
1637 }
1638 else
1639 {
1640 ofst =
1641 _frvfdpic_add_dyn_reloc (output_bfd,
1642 entry->lazyplt
1643 ? frvfdpic_pltrel_section (info)
1644 : frvfdpic_gotrel_section (info),
1645 _bfd_elf_section_offset
1646 (output_bfd, info,
1647 frvfdpic_got_section (info),
1648 frvfdpic_got_initial_offset (info)
1649 + entry->fd_entry)
1650 + frvfdpic_got_section (info)
1651 ->output_section->vma
1652 + frvfdpic_got_section (info)
1653 ->output_offset,
1654 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1655 }
1656
1657 /* If we've omitted the dynamic relocation, just emit the fixed
1658 addresses of the symbol and of the local GOT base offset. */
1659 if (info->executable && !info->pie && sec && sec->output_section)
1660 {
1661 lowword = ad;
1662 highword = frvfdpic_got_section (info)->output_section->vma
1663 + frvfdpic_got_section (info)->output_offset
1664 + frvfdpic_got_initial_offset (info);
1665 }
1666 else if (entry->lazyplt)
1667 {
1668 if (ad)
1669 {
1670 (*info->callbacks->reloc_dangerous)
1671 (info, _("relocation requires zero addend"),
1672 elf_hash_table (info)->dynobj,
1673 frvfdpic_got_section (info),
1674 entry->fd_entry);
1675 return FALSE;
1676 }
1677
1678 fd_lazy_rel_offset = ofst;
1679
1680 /* A function descriptor used for lazy or local resolving is
1681 initialized such that its high word contains the output
1682 section index in which the PLT entries are located, and
1683 the low word contains the address of the lazy PLT entry
1684 entry point, that must be within the memory region
1685 assigned to that section. */
1686 lowword = entry->lzplt_entry + 4
1687 + frvfdpic_plt_section (info)->output_offset
1688 + frvfdpic_plt_section (info)->output_section->vma;
1689 highword = _frvfdpic_osec_to_segment
1690 (output_bfd, frvfdpic_plt_section (info)->output_section);
1691 }
1692 else
1693 {
1694 /* A function descriptor for a local function gets the index
1695 of the section. For a non-local function, it's
1696 disregarded. */
1697 lowword = ad;
1698 if (entry->symndx == -1 && entry->d.h->dynindx != -1
1699 && entry->d.h->dynindx == idx)
1700 highword = 0;
1701 else
1702 highword = _frvfdpic_osec_to_segment
1703 (output_bfd, sec->output_section);
1704 }
1705
1706 bfd_put_32 (output_bfd, lowword,
1707 frvfdpic_got_section (info)->contents
1708 + frvfdpic_got_initial_offset (info)
1709 + entry->fd_entry);
1710 bfd_put_32 (output_bfd, highword,
1711 frvfdpic_got_section (info)->contents
1712 + frvfdpic_got_initial_offset (info)
1713 + entry->fd_entry + 4);
1714 }
1715
1716 /* Generate code for the PLT entry. */
1717 if (entry->plt_entry != (bfd_vma) -1)
1718 {
1719 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1720 + entry->plt_entry;
1721
1722 BFD_ASSERT (entry->fd_entry);
1723
1724 /* Figure out what kind of PLT entry we need, depending on the
1725 location of the function descriptor within the GOT. */
1726 if (entry->fd_entry >= -(1 << (12 - 1))
1727 && entry->fd_entry < (1 << (12 - 1)))
1728 {
1729 /* lddi @(gr15, fd_entry), gr14 */
1730 bfd_put_32 (output_bfd,
1731 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1732 plt_code);
1733 plt_code += 4;
1734 }
1735 else
1736 {
1737 if (entry->fd_entry >= -(1 << (16 - 1))
1738 && entry->fd_entry < (1 << (16 - 1)))
1739 {
1740 /* setlos lo(fd_entry), gr14 */
1741 bfd_put_32 (output_bfd,
1742 0x9cfc0000
1743 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1744 plt_code);
1745 plt_code += 4;
1746 }
1747 else
1748 {
1749 /* sethi.p hi(fd_entry), gr14
1750 setlo lo(fd_entry), gr14 */
1751 bfd_put_32 (output_bfd,
1752 0x1cf80000
1753 | ((entry->fd_entry >> 16)
1754 & (((bfd_vma)1 << 16) - 1)),
1755 plt_code);
1756 plt_code += 4;
1757 bfd_put_32 (output_bfd,
1758 0x9cf40000
1759 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1760 plt_code);
1761 plt_code += 4;
1762 }
1763 /* ldd @(gr14,gr15),gr14 */
1764 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1765 plt_code += 4;
1766 }
1767 /* jmpl @(gr14,gr0) */
1768 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1769 }
1770
1771 /* Generate code for the lazy PLT entry. */
1772 if (entry->lzplt_entry != (bfd_vma) -1)
1773 {
1774 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1775 + entry->lzplt_entry;
1776 bfd_vma resolverStub_addr;
1777
1778 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1779 lzplt_code += 4;
1780
1781 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1782 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1783 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1784 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1785
1786 if (entry->lzplt_entry == resolverStub_addr)
1787 {
1788 /* This is a lazy PLT entry that includes a resolver call. */
1789 /* ldd @(gr15,gr0), gr4
1790 jmpl @(gr4,gr0) */
1791 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1792 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1793 }
1794 else
1795 {
1796 /* bra resolverStub */
1797 bfd_put_32 (output_bfd,
1798 0xc01a0000
1799 | (((resolverStub_addr - entry->lzplt_entry)
1800 / 4) & (((bfd_vma)1 << 16) - 1)),
1801 lzplt_code);
1802 }
1803 }
1804
1805 /* Generate relocation for GOT entry holding the TLS offset. */
1806 if (entry->tlsoff_entry)
1807 {
1808 int idx = dynindx;
1809 bfd_vma ad = addend;
1810
1811 if (entry->symndx != -1
1812 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1813 {
1814 /* If the symbol is dynamic but binds locally, use
1815 section+offset. */
1816 if (sec)
1817 {
1818 if (entry->symndx == -1)
1819 ad += entry->d.h->root.u.def.value;
1820 else
1821 ad += sym->st_value;
1822 ad += sec->output_offset;
1823 if (sec->output_section
1824 && elf_section_data (sec->output_section))
1825 idx = elf_section_data (sec->output_section)->dynindx;
1826 else
1827 idx = 0;
1828 }
1829 }
1830
1831 /* *ABS*+addend is special for TLS relocations, use only the
1832 addend. */
1833 if (info->executable
1834 && idx == 0
1835 && (bfd_is_abs_section (sec)
1836 || bfd_is_und_section (sec)))
1837 ;
1838 /* If we're linking an executable, we can entirely omit the
1839 dynamic relocation if the symbol is local to this module. */
1840 else if (info->executable
1841 && (entry->symndx != -1
1842 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1843 {
1844 if (sec)
1845 ad += sec->output_section->vma - tls_biased_base (info);
1846 }
1847 else
1848 {
1849 if (idx == 0
1850 && (bfd_is_abs_section (sec)
1851 || bfd_is_und_section (sec)))
1852 {
1853 if (! elf_hash_table (info)->tls_sec)
1854 {
1855 (*info->callbacks->undefined_symbol)
1856 (info, "TLS section", elf_hash_table (info)->dynobj,
1857 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1858 return FALSE;
1859 }
1860 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1861 ad += FRVFDPIC_TLS_BIAS;
1862 }
1863 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1864 _bfd_elf_section_offset
1865 (output_bfd, info,
1866 frvfdpic_got_section (info),
1867 frvfdpic_got_initial_offset (info)
1868 + entry->tlsoff_entry)
1869 + frvfdpic_got_section (info)
1870 ->output_section->vma
1871 + frvfdpic_got_section (info)
1872 ->output_offset,
1873 R_FRV_TLSOFF, idx, ad, entry);
1874 }
1875
1876 bfd_put_32 (output_bfd, ad,
1877 frvfdpic_got_section (info)->contents
1878 + frvfdpic_got_initial_offset (info)
1879 + entry->tlsoff_entry);
1880 }
1881
1882 if (entry->tlsdesc_entry)
1883 {
1884 int idx = dynindx;
1885 bfd_vma ad = addend;
1886
1887 /* If the symbol is dynamic but binds locally, use
1888 section+offset. */
1889 if (sec && (entry->symndx != -1
1890 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1891 {
1892 if (entry->symndx == -1)
1893 ad += entry->d.h->root.u.def.value;
1894 else
1895 ad += sym->st_value;
1896 ad += sec->output_offset;
1897 if (sec->output_section && elf_section_data (sec->output_section))
1898 idx = elf_section_data (sec->output_section)->dynindx;
1899 else
1900 idx = 0;
1901 }
1902
1903 /* If we didn't set up a TLS offset entry, but we're linking an
1904 executable and the symbol binds locally, we can use the
1905 module offset in the TLS descriptor in relaxations. */
1906 if (info->executable && ! entry->tlsoff_entry)
1907 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1908
1909 if (info->executable && !info->pie
1910 && ((idx == 0
1911 && (bfd_is_abs_section (sec)
1912 || bfd_is_und_section (sec)))
1913 || entry->symndx != -1
1914 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1915 {
1916 /* *ABS*+addend is special for TLS relocations, use only the
1917 addend for the TLS offset, and take the module id as
1918 0. */
1919 if (idx == 0
1920 && (bfd_is_abs_section (sec)
1921 || bfd_is_und_section (sec)))
1922 ;
1923 /* For other TLS symbols that bind locally, add the section
1924 TLS offset to the addend. */
1925 else if (sec)
1926 ad += sec->output_section->vma - tls_biased_base (info);
1927
1928 bfd_put_32 (output_bfd,
1929 frvfdpic_plt_section (info)->output_section->vma
1930 + frvfdpic_plt_section (info)->output_offset
1931 + frvfdpic_plt_tls_ret_offset (info),
1932 frvfdpic_got_section (info)->contents
1933 + frvfdpic_got_initial_offset (info)
1934 + entry->tlsdesc_entry);
1935
1936 _frvfdpic_add_rofixup (output_bfd,
1937 frvfdpic_gotfixup_section (info),
1938 frvfdpic_got_section (info)
1939 ->output_section->vma
1940 + frvfdpic_got_section (info)
1941 ->output_offset
1942 + frvfdpic_got_initial_offset (info)
1943 + entry->tlsdesc_entry, entry);
1944
1945 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1946
1947 /* We've used one of the reserved fixups, so discount it so
1948 that we can check at the end that we've used them
1949 all. */
1950 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1951
1952 /* While at that, make sure the ret instruction makes to the
1953 right location in the PLT. We could do it only when we
1954 got to 0, but since the check at the end will only print
1955 a warning, make sure we have the ret in place in case the
1956 warning is missed. */
1957 bfd_put_32 (output_bfd, 0xc03a4000,
1958 frvfdpic_plt_section (info)->contents
1959 + frvfdpic_plt_tls_ret_offset (info));
1960 }
1961 else
1962 {
1963 if (idx == 0
1964 && (bfd_is_abs_section (sec)
1965 || bfd_is_und_section (sec)))
1966 {
1967 if (! elf_hash_table (info)->tls_sec)
1968 {
1969 (*info->callbacks->undefined_symbol)
1970 (info, "TLS section", elf_hash_table (info)->dynobj,
1971 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1972 return FALSE;
1973 }
1974 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1975 ad += FRVFDPIC_TLS_BIAS;
1976 }
1977
1978 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1979 _bfd_elf_section_offset
1980 (output_bfd, info,
1981 frvfdpic_got_section (info),
1982 frvfdpic_got_initial_offset (info)
1983 + entry->tlsdesc_entry)
1984 + frvfdpic_got_section (info)
1985 ->output_section->vma
1986 + frvfdpic_got_section (info)
1987 ->output_offset,
1988 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1989
1990 bfd_put_32 (output_bfd, 0,
1991 frvfdpic_got_section (info)->contents
1992 + frvfdpic_got_initial_offset (info)
1993 + entry->tlsdesc_entry);
1994 }
1995
1996 bfd_put_32 (output_bfd, ad,
1997 frvfdpic_got_section (info)->contents
1998 + frvfdpic_got_initial_offset (info)
1999 + entry->tlsdesc_entry + 4);
2000 }
2001
2002 /* Generate code for the get-TLS-offset PLT entry. */
2003 if (entry->tlsplt_entry != (bfd_vma) -1)
2004 {
2005 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
2006 + entry->tlsplt_entry;
2007
2008 if (info->executable
2009 && (entry->symndx != -1
2010 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
2011 {
2012 int idx = dynindx;
2013 bfd_vma ad = addend;
2014
2015 /* sec may be NULL when referencing an undefweak symbol
2016 while linking a static executable. */
2017 if (!sec)
2018 {
2019 BFD_ASSERT (entry->symndx == -1
2020 && entry->d.h->root.type == bfd_link_hash_undefweak);
2021 }
2022 else
2023 {
2024 if (entry->symndx == -1)
2025 ad += entry->d.h->root.u.def.value;
2026 else
2027 ad += sym->st_value;
2028 ad += sec->output_offset;
2029 if (sec->output_section
2030 && elf_section_data (sec->output_section))
2031 idx = elf_section_data (sec->output_section)->dynindx;
2032 else
2033 idx = 0;
2034 }
2035
2036 /* *ABS*+addend is special for TLS relocations, use only the
2037 addend for the TLS offset, and take the module id as
2038 0. */
2039 if (idx == 0
2040 && (bfd_is_abs_section (sec)
2041 || bfd_is_und_section (sec)))
2042 ;
2043 /* For other TLS symbols that bind locally, add the section
2044 TLS offset to the addend. */
2045 else if (sec)
2046 ad += sec->output_section->vma - tls_biased_base (info);
2047
2048 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
2049 && (bfd_signed_vma)ad < (1 << (16 - 1)))
2050 {
2051 /* setlos lo(ad), gr9 */
2052 bfd_put_32 (output_bfd,
2053 0x92fc0000
2054 | (ad
2055 & (((bfd_vma)1 << 16) - 1)),
2056 plt_code);
2057 plt_code += 4;
2058 }
2059 else
2060 {
2061 /* sethi.p hi(ad), gr9
2062 setlo lo(ad), gr9 */
2063 bfd_put_32 (output_bfd,
2064 0x12f80000
2065 | ((ad >> 16)
2066 & (((bfd_vma)1 << 16) - 1)),
2067 plt_code);
2068 plt_code += 4;
2069 bfd_put_32 (output_bfd,
2070 0x92f40000
2071 | (ad
2072 & (((bfd_vma)1 << 16) - 1)),
2073 plt_code);
2074 plt_code += 4;
2075 }
2076 /* ret */
2077 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2078 }
2079 else if (entry->tlsoff_entry)
2080 {
2081 /* Figure out what kind of PLT entry we need, depending on the
2082 location of the TLS descriptor within the GOT. */
2083 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2084 && entry->tlsoff_entry < (1 << (12 - 1)))
2085 {
2086 /* ldi @(gr15, tlsoff_entry), gr9 */
2087 bfd_put_32 (output_bfd,
2088 0x92c8f000 | (entry->tlsoff_entry
2089 & ((1 << 12) - 1)),
2090 plt_code);
2091 plt_code += 4;
2092 }
2093 else
2094 {
2095 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2096 && entry->tlsoff_entry < (1 << (16 - 1)))
2097 {
2098 /* setlos lo(tlsoff_entry), gr8 */
2099 bfd_put_32 (output_bfd,
2100 0x90fc0000
2101 | (entry->tlsoff_entry
2102 & (((bfd_vma)1 << 16) - 1)),
2103 plt_code);
2104 plt_code += 4;
2105 }
2106 else
2107 {
2108 /* sethi.p hi(tlsoff_entry), gr8
2109 setlo lo(tlsoff_entry), gr8 */
2110 bfd_put_32 (output_bfd,
2111 0x10f80000
2112 | ((entry->tlsoff_entry >> 16)
2113 & (((bfd_vma)1 << 16) - 1)),
2114 plt_code);
2115 plt_code += 4;
2116 bfd_put_32 (output_bfd,
2117 0x90f40000
2118 | (entry->tlsoff_entry
2119 & (((bfd_vma)1 << 16) - 1)),
2120 plt_code);
2121 plt_code += 4;
2122 }
2123 /* ld @(gr15,gr8),gr9 */
2124 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2125 plt_code += 4;
2126 }
2127 /* ret */
2128 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2129 }
2130 else
2131 {
2132 BFD_ASSERT (entry->tlsdesc_entry);
2133
2134 /* Figure out what kind of PLT entry we need, depending on the
2135 location of the TLS descriptor within the GOT. */
2136 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2137 && entry->tlsdesc_entry < (1 << (12 - 1)))
2138 {
2139 /* lddi @(gr15, tlsdesc_entry), gr8 */
2140 bfd_put_32 (output_bfd,
2141 0x90ccf000 | (entry->tlsdesc_entry
2142 & ((1 << 12) - 1)),
2143 plt_code);
2144 plt_code += 4;
2145 }
2146 else
2147 {
2148 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2149 && entry->tlsdesc_entry < (1 << (16 - 1)))
2150 {
2151 /* setlos lo(tlsdesc_entry), gr8 */
2152 bfd_put_32 (output_bfd,
2153 0x90fc0000
2154 | (entry->tlsdesc_entry
2155 & (((bfd_vma)1 << 16) - 1)),
2156 plt_code);
2157 plt_code += 4;
2158 }
2159 else
2160 {
2161 /* sethi.p hi(tlsdesc_entry), gr8
2162 setlo lo(tlsdesc_entry), gr8 */
2163 bfd_put_32 (output_bfd,
2164 0x10f80000
2165 | ((entry->tlsdesc_entry >> 16)
2166 & (((bfd_vma)1 << 16) - 1)),
2167 plt_code);
2168 plt_code += 4;
2169 bfd_put_32 (output_bfd,
2170 0x90f40000
2171 | (entry->tlsdesc_entry
2172 & (((bfd_vma)1 << 16) - 1)),
2173 plt_code);
2174 plt_code += 4;
2175 }
2176 /* ldd @(gr15,gr8),gr8 */
2177 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2178 plt_code += 4;
2179 }
2180 /* jmpl @(gr8,gr0) */
2181 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2182 }
2183 }
2184
2185 return TRUE;
2186 }
2187
2188 /* Handle an FRV small data reloc. */
2189
2190 static bfd_reloc_status_type
2191 elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation,
2192 contents, value)
2193 struct bfd_link_info *info;
2194 bfd *input_bfd;
2195 asection *input_section;
2196 Elf_Internal_Rela *relocation;
2197 bfd_byte *contents;
2198 bfd_vma value;
2199 {
2200 bfd_vma insn;
2201 bfd_vma gp;
2202 struct bfd_link_hash_entry *h;
2203
2204 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2205
2206 gp = (h->u.def.value
2207 + h->u.def.section->output_section->vma
2208 + h->u.def.section->output_offset);
2209
2210 value -= input_section->output_section->vma;
2211 value -= (gp - input_section->output_section->vma);
2212
2213 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2214
2215 value += relocation->r_addend;
2216
2217 if ((long) value > 0x7ff || (long) value < -0x800)
2218 return bfd_reloc_overflow;
2219
2220 bfd_put_32 (input_bfd,
2221 (insn & 0xfffff000) | (value & 0xfff),
2222 contents + relocation->r_offset);
2223
2224 return bfd_reloc_ok;
2225 }
2226
2227 /* Handle an FRV small data reloc. for the u12 field. */
2228
2229 static bfd_reloc_status_type
2230 elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation,
2231 contents, value)
2232 struct bfd_link_info *info;
2233 bfd *input_bfd;
2234 asection *input_section;
2235 Elf_Internal_Rela *relocation;
2236 bfd_byte *contents;
2237 bfd_vma value;
2238 {
2239 bfd_vma insn;
2240 bfd_vma gp;
2241 struct bfd_link_hash_entry *h;
2242 bfd_vma mask;
2243
2244 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2245
2246 gp = (h->u.def.value
2247 + h->u.def.section->output_section->vma
2248 + h->u.def.section->output_offset);
2249
2250 value -= input_section->output_section->vma;
2251 value -= (gp - input_section->output_section->vma);
2252
2253 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2254
2255 value += relocation->r_addend;
2256
2257 if ((long) value > 0x7ff || (long) value < -0x800)
2258 return bfd_reloc_overflow;
2259
2260 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2261 mask = 0x3f03f;
2262 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2263
2264 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2265
2266 return bfd_reloc_ok;
2267 }
2268
2269 /* Handle an FRV ELF HI16 reloc. */
2270
2271 static bfd_reloc_status_type
2272 elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
2273 bfd *input_bfd;
2274 Elf_Internal_Rela *relhi;
2275 bfd_byte *contents;
2276 bfd_vma value;
2277 {
2278 bfd_vma insn;
2279
2280 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2281
2282 value += relhi->r_addend;
2283 value = ((value >> 16) & 0xffff);
2284
2285 insn = (insn & 0xffff0000) | value;
2286
2287 if ((long) value > 0xffff || (long) value < -0x10000)
2288 return bfd_reloc_overflow;
2289
2290 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2291 return bfd_reloc_ok;
2292
2293 }
2294 static bfd_reloc_status_type
2295 elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
2296 bfd *input_bfd;
2297 Elf_Internal_Rela *rello;
2298 bfd_byte *contents;
2299 bfd_vma value;
2300 {
2301 bfd_vma insn;
2302
2303 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2304
2305 value += rello->r_addend;
2306 value = value & 0xffff;
2307
2308 insn = (insn & 0xffff0000) | value;
2309
2310 if ((long) value > 0xffff || (long) value < -0x10000)
2311 return bfd_reloc_overflow;
2312
2313 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2314 return bfd_reloc_ok;
2315 }
2316
2317 /* Perform the relocation for the CALL label24 instruction. */
2318
2319 static bfd_reloc_status_type
2320 elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
2321 bfd *input_bfd;
2322 asection *input_section;
2323 Elf_Internal_Rela *rello;
2324 bfd_byte *contents;
2325 bfd_vma value;
2326 {
2327 bfd_vma insn;
2328 bfd_vma label6;
2329 bfd_vma label18;
2330
2331 /* The format for the call instruction is:
2332
2333 0 000000 0001111 000000000000000000
2334 label6 opcode label18
2335
2336 The branch calculation is: pc + (4*label24)
2337 where label24 is the concatenation of label6 and label18. */
2338
2339 /* Grab the instruction. */
2340 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2341
2342 value -= input_section->output_section->vma + input_section->output_offset;
2343 value -= rello->r_offset;
2344 value += rello->r_addend;
2345
2346 value = value >> 2;
2347
2348 label6 = value & 0xfc0000;
2349 label6 = label6 << 7;
2350
2351 label18 = value & 0x3ffff;
2352
2353 insn = insn & 0x803c0000;
2354 insn = insn | label6;
2355 insn = insn | label18;
2356
2357 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2358
2359 return bfd_reloc_ok;
2360 }
2361
2362 static bfd_reloc_status_type
2363 elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation,
2364 contents, value)
2365 struct bfd_link_info *info;
2366 bfd *input_bfd;
2367 asection *input_section;
2368 Elf_Internal_Rela *relocation;
2369 bfd_byte *contents;
2370 bfd_vma value;
2371 {
2372 bfd_vma insn;
2373 bfd_vma gp;
2374 struct bfd_link_hash_entry *h;
2375
2376 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2377
2378 gp = (h->u.def.value
2379 + h->u.def.section->output_section->vma
2380 + h->u.def.section->output_offset);
2381
2382 value -= input_section->output_section->vma;
2383 value -= (gp - input_section->output_section->vma);
2384 value += relocation->r_addend;
2385 value = ((value >> 16) & 0xffff);
2386
2387 if ((long) value > 0xffff || (long) value < -0x10000)
2388 return bfd_reloc_overflow;
2389
2390 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2391 insn = (insn & 0xffff0000) | value;
2392
2393 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2394 return bfd_reloc_ok;
2395 }
2396
2397 static bfd_reloc_status_type
2398 elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation,
2399 contents, value)
2400 struct bfd_link_info *info;
2401 bfd *input_bfd;
2402 asection *input_section;
2403 Elf_Internal_Rela *relocation;
2404 bfd_byte *contents;
2405 bfd_vma value;
2406 {
2407 bfd_vma insn;
2408 bfd_vma gp;
2409 struct bfd_link_hash_entry *h;
2410
2411 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2412
2413 gp = (h->u.def.value
2414 + h->u.def.section->output_section->vma
2415 + h->u.def.section->output_offset);
2416
2417 value -= input_section->output_section->vma;
2418 value -= (gp - input_section->output_section->vma);
2419 value += relocation->r_addend;
2420 value = value & 0xffff;
2421
2422 if ((long) value > 0xffff || (long) value < -0x10000)
2423 return bfd_reloc_overflow;
2424
2425 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2426 insn = (insn & 0xffff0000) | value;
2427
2428 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2429
2430 return bfd_reloc_ok;
2431 }
2432
2433 static reloc_howto_type *
2434 frv_reloc_type_lookup (abfd, code)
2435 bfd *abfd ATTRIBUTE_UNUSED;
2436 bfd_reloc_code_real_type code;
2437 {
2438 switch (code)
2439 {
2440 default:
2441 break;
2442
2443 case BFD_RELOC_NONE:
2444 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2445
2446 case BFD_RELOC_32:
2447 if (elf_elfheader (abfd)->e_type == ET_EXEC
2448 || elf_elfheader (abfd)->e_type == ET_DYN)
2449 return &elf32_frv_rel_32_howto;
2450 /* Fall through. */
2451 case BFD_RELOC_CTOR:
2452 return &elf32_frv_howto_table[ (int) R_FRV_32];
2453
2454 case BFD_RELOC_FRV_LABEL16:
2455 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2456
2457 case BFD_RELOC_FRV_LABEL24:
2458 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2459
2460 case BFD_RELOC_FRV_LO16:
2461 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2462
2463 case BFD_RELOC_FRV_HI16:
2464 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2465
2466 case BFD_RELOC_FRV_GPREL12:
2467 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2468
2469 case BFD_RELOC_FRV_GPRELU12:
2470 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2471
2472 case BFD_RELOC_FRV_GPREL32:
2473 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2474
2475 case BFD_RELOC_FRV_GPRELHI:
2476 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2477
2478 case BFD_RELOC_FRV_GPRELLO:
2479 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2480
2481 case BFD_RELOC_FRV_GOT12:
2482 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2483
2484 case BFD_RELOC_FRV_GOTHI:
2485 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2486
2487 case BFD_RELOC_FRV_GOTLO:
2488 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2489
2490 case BFD_RELOC_FRV_FUNCDESC:
2491 if (elf_elfheader (abfd)->e_type == ET_EXEC
2492 || elf_elfheader (abfd)->e_type == ET_DYN)
2493 return &elf32_frv_rel_funcdesc_howto;
2494 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2495
2496 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2497 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2498
2499 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2500 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2501
2502 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2503 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2504
2505 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2506 if (elf_elfheader (abfd)->e_type == ET_EXEC
2507 || elf_elfheader (abfd)->e_type == ET_DYN)
2508 return &elf32_frv_rel_funcdesc_value_howto;
2509 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2510
2511 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2512 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2513
2514 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2515 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2516
2517 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2518 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2519
2520 case BFD_RELOC_FRV_GOTOFF12:
2521 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2522
2523 case BFD_RELOC_FRV_GOTOFFHI:
2524 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2525
2526 case BFD_RELOC_FRV_GOTOFFLO:
2527 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2528
2529 case BFD_RELOC_FRV_GETTLSOFF:
2530 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2531
2532 case BFD_RELOC_FRV_TLSDESC_VALUE:
2533 if (elf_elfheader (abfd)->e_type == ET_EXEC
2534 || elf_elfheader (abfd)->e_type == ET_DYN)
2535 return &elf32_frv_rel_tlsdesc_value_howto;
2536 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2537
2538 case BFD_RELOC_FRV_GOTTLSDESC12:
2539 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2540
2541 case BFD_RELOC_FRV_GOTTLSDESCHI:
2542 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2543
2544 case BFD_RELOC_FRV_GOTTLSDESCLO:
2545 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2546
2547 case BFD_RELOC_FRV_TLSMOFF12:
2548 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2549
2550 case BFD_RELOC_FRV_TLSMOFFHI:
2551 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2552
2553 case BFD_RELOC_FRV_TLSMOFFLO:
2554 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2555
2556 case BFD_RELOC_FRV_GOTTLSOFF12:
2557 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2558
2559 case BFD_RELOC_FRV_GOTTLSOFFHI:
2560 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2561
2562 case BFD_RELOC_FRV_GOTTLSOFFLO:
2563 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2564
2565 case BFD_RELOC_FRV_TLSOFF:
2566 if (elf_elfheader (abfd)->e_type == ET_EXEC
2567 || elf_elfheader (abfd)->e_type == ET_DYN)
2568 return &elf32_frv_rel_tlsoff_howto;
2569 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2570
2571 case BFD_RELOC_FRV_TLSDESC_RELAX:
2572 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2573
2574 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2575 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2576
2577 case BFD_RELOC_FRV_TLSOFF_RELAX:
2578 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2579
2580 case BFD_RELOC_FRV_TLSMOFF:
2581 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2582
2583 case BFD_RELOC_VTABLE_INHERIT:
2584 return &elf32_frv_vtinherit_howto;
2585
2586 case BFD_RELOC_VTABLE_ENTRY:
2587 return &elf32_frv_vtentry_howto;
2588 }
2589
2590 return NULL;
2591 }
2592
2593 /* Set the howto pointer for an FRV ELF reloc. */
2594
2595 static void
2596 frv_info_to_howto_rela (abfd, cache_ptr, dst)
2597 bfd *abfd ATTRIBUTE_UNUSED;
2598 arelent *cache_ptr;
2599 Elf_Internal_Rela *dst;
2600 {
2601 unsigned int r_type;
2602
2603 r_type = ELF32_R_TYPE (dst->r_info);
2604 switch (r_type)
2605 {
2606 case R_FRV_GNU_VTINHERIT:
2607 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2608 break;
2609
2610 case R_FRV_GNU_VTENTRY:
2611 cache_ptr->howto = &elf32_frv_vtentry_howto;
2612 break;
2613
2614 default:
2615 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2616 break;
2617 }
2618 }
2619
2620 /* Set the howto pointer for an FRV ELF REL reloc. */
2621 static void
2622 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2623 arelent *cache_ptr, Elf_Internal_Rela *dst)
2624 {
2625 unsigned int r_type;
2626
2627 r_type = ELF32_R_TYPE (dst->r_info);
2628 switch (r_type)
2629 {
2630 case R_FRV_32:
2631 cache_ptr->howto = &elf32_frv_rel_32_howto;
2632 break;
2633
2634 case R_FRV_FUNCDESC:
2635 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2636 break;
2637
2638 case R_FRV_FUNCDESC_VALUE:
2639 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2640 break;
2641
2642 case R_FRV_TLSDESC_VALUE:
2643 cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2644 break;
2645
2646 case R_FRV_TLSOFF:
2647 cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2648 break;
2649
2650 default:
2651 cache_ptr->howto = NULL;
2652 break;
2653 }
2654 }
2655 \f
2656 /* Perform a single relocation. By default we use the standard BFD
2657 routines, but a few relocs, we have to do them ourselves. */
2658
2659 static bfd_reloc_status_type
2660 frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
2661 relocation)
2662 reloc_howto_type *howto;
2663 bfd *input_bfd;
2664 asection *input_section;
2665 bfd_byte *contents;
2666 Elf_Internal_Rela *rel;
2667 bfd_vma relocation;
2668 {
2669 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2670 contents, rel->r_offset, relocation,
2671 rel->r_addend);
2672 }
2673
2674 \f
2675 /* Relocate an FRV ELF section.
2676
2677 The RELOCATE_SECTION function is called by the new ELF backend linker
2678 to handle the relocations for a section.
2679
2680 The relocs are always passed as Rela structures; if the section
2681 actually uses Rel structures, the r_addend field will always be
2682 zero.
2683
2684 This function is responsible for adjusting the section contents as
2685 necessary, and (if using Rela relocs and generating a relocatable
2686 output file) adjusting the reloc addend as necessary.
2687
2688 This function does not have to worry about setting the reloc
2689 address or the reloc symbol index.
2690
2691 LOCAL_SYMS is a pointer to the swapped in local symbols.
2692
2693 LOCAL_SECTIONS is an array giving the section in the input file
2694 corresponding to the st_shndx field of each local symbol.
2695
2696 The global hash table entry for the global symbols can be found
2697 via elf_sym_hashes (input_bfd).
2698
2699 When generating relocatable output, this function must handle
2700 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2701 going to be the section symbol corresponding to the output
2702 section, which means that the addend must be adjusted
2703 accordingly. */
2704
2705 static bfd_boolean
2706 elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
2707 contents, relocs, local_syms, local_sections)
2708 bfd *output_bfd ATTRIBUTE_UNUSED;
2709 struct bfd_link_info *info;
2710 bfd *input_bfd;
2711 asection *input_section;
2712 bfd_byte *contents;
2713 Elf_Internal_Rela *relocs;
2714 Elf_Internal_Sym *local_syms;
2715 asection **local_sections;
2716 {
2717 Elf_Internal_Shdr *symtab_hdr;
2718 struct elf_link_hash_entry **sym_hashes;
2719 Elf_Internal_Rela *rel;
2720 Elf_Internal_Rela *relend;
2721 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2722 check_segment[2];
2723 int silence_segment_error = !(info->shared || info->pie);
2724 unsigned long insn;
2725
2726 if (info->relocatable)
2727 return TRUE;
2728
2729 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2730 sym_hashes = elf_sym_hashes (input_bfd);
2731 relend = relocs + input_section->reloc_count;
2732
2733 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2734 input_section->output_section);
2735 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2736 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2737 frvfdpic_got_section (info)
2738 ->output_section);
2739 else
2740 got_segment = -1;
2741 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2742 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2743 frvfdpic_gotfixup_section (info)
2744 ->output_section);
2745 else
2746 gprel_segment = -1;
2747 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2748 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2749 frvfdpic_plt_section (info)
2750 ->output_section);
2751 else
2752 plt_segment = -1;
2753 if (elf_hash_table (info)->tls_sec)
2754 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2755 elf_hash_table (info)->tls_sec);
2756 else
2757 tls_segment = -1;
2758
2759 for (rel = relocs; rel < relend; rel ++)
2760 {
2761 reloc_howto_type *howto;
2762 unsigned long r_symndx;
2763 Elf_Internal_Sym *sym;
2764 asection *sec;
2765 struct elf_link_hash_entry *h;
2766 bfd_vma relocation;
2767 bfd_reloc_status_type r;
2768 const char * name = NULL;
2769 int r_type;
2770 asection *osec;
2771 struct frvfdpic_relocs_info *picrel;
2772 bfd_vma orig_addend = rel->r_addend;
2773
2774 r_type = ELF32_R_TYPE (rel->r_info);
2775
2776 if ( r_type == R_FRV_GNU_VTINHERIT
2777 || r_type == R_FRV_GNU_VTENTRY)
2778 continue;
2779
2780 /* This is a final link. */
2781 r_symndx = ELF32_R_SYM (rel->r_info);
2782 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2783 h = NULL;
2784 sym = NULL;
2785 sec = NULL;
2786
2787 if (r_symndx < symtab_hdr->sh_info)
2788 {
2789 sym = local_syms + r_symndx;
2790 osec = sec = local_sections [r_symndx];
2791 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2792
2793 name = bfd_elf_string_from_elf_section
2794 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2795 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
2796 }
2797 else
2798 {
2799 h = sym_hashes [r_symndx - symtab_hdr->sh_info];
2800
2801 while (h->root.type == bfd_link_hash_indirect
2802 || h->root.type == bfd_link_hash_warning)
2803 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2804
2805 name = h->root.root.string;
2806
2807 if ((h->root.type == bfd_link_hash_defined
2808 || h->root.type == bfd_link_hash_defweak))
2809 {
2810 if (/* TLSMOFF forces local binding. */
2811 r_type != R_FRV_TLSMOFF
2812 && ! FRVFDPIC_SYM_LOCAL (info, h))
2813 {
2814 sec = NULL;
2815 relocation = 0;
2816 }
2817 else
2818 {
2819 sec = h->root.u.def.section;
2820 relocation = (h->root.u.def.value
2821 + sec->output_section->vma
2822 + sec->output_offset);
2823 }
2824 }
2825 else if (h->root.type == bfd_link_hash_undefweak)
2826 {
2827 relocation = 0;
2828 }
2829 else if (info->unresolved_syms_in_objects == RM_IGNORE
2830 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2831 relocation = 0;
2832 else
2833 {
2834 if (! ((*info->callbacks->undefined_symbol)
2835 (info, h->root.root.string, input_bfd,
2836 input_section, rel->r_offset,
2837 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2838 || ELF_ST_VISIBILITY (h->other)))))
2839 return FALSE;
2840 relocation = 0;
2841 }
2842 osec = sec;
2843 }
2844
2845 switch (r_type)
2846 {
2847 case R_FRV_LABEL24:
2848 case R_FRV_32:
2849 if (! IS_FDPIC (output_bfd))
2850 goto non_fdpic;
2851
2852 case R_FRV_GOT12:
2853 case R_FRV_GOTHI:
2854 case R_FRV_GOTLO:
2855 case R_FRV_FUNCDESC_GOT12:
2856 case R_FRV_FUNCDESC_GOTHI:
2857 case R_FRV_FUNCDESC_GOTLO:
2858 case R_FRV_GOTOFF12:
2859 case R_FRV_GOTOFFHI:
2860 case R_FRV_GOTOFFLO:
2861 case R_FRV_FUNCDESC_GOTOFF12:
2862 case R_FRV_FUNCDESC_GOTOFFHI:
2863 case R_FRV_FUNCDESC_GOTOFFLO:
2864 case R_FRV_FUNCDESC:
2865 case R_FRV_FUNCDESC_VALUE:
2866 case R_FRV_GETTLSOFF:
2867 case R_FRV_TLSDESC_VALUE:
2868 case R_FRV_GOTTLSDESC12:
2869 case R_FRV_GOTTLSDESCHI:
2870 case R_FRV_GOTTLSDESCLO:
2871 case R_FRV_TLSMOFF12:
2872 case R_FRV_TLSMOFFHI:
2873 case R_FRV_TLSMOFFLO:
2874 case R_FRV_GOTTLSOFF12:
2875 case R_FRV_GOTTLSOFFHI:
2876 case R_FRV_GOTTLSOFFLO:
2877 case R_FRV_TLSOFF:
2878 case R_FRV_TLSDESC_RELAX:
2879 case R_FRV_GETTLSOFF_RELAX:
2880 case R_FRV_TLSOFF_RELAX:
2881 case R_FRV_TLSMOFF:
2882 if (h != NULL)
2883 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2884 (info), input_bfd, h,
2885 orig_addend, INSERT);
2886 else
2887 /* In order to find the entry we created before, we must
2888 use the original addend, not the one that may have been
2889 modified by _bfd_elf_rela_local_sym(). */
2890 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2891 (info), input_bfd, r_symndx,
2892 orig_addend, INSERT);
2893 if (! picrel)
2894 return FALSE;
2895
2896 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2897 osec, sym,
2898 rel->r_addend))
2899 {
2900 (*_bfd_error_handler)
2901 (_("%B(%A+0x%x): relocation to `%s+%x' may have caused the error above"),
2902 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2903 return FALSE;
2904 }
2905
2906 break;
2907
2908 default:
2909 non_fdpic:
2910 picrel = NULL;
2911 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
2912 {
2913 info->callbacks->warning
2914 (info, _("relocation references symbol not defined in the module"),
2915 name, input_bfd, input_section, rel->r_offset);
2916 return FALSE;
2917 }
2918 break;
2919 }
2920
2921 switch (r_type)
2922 {
2923 case R_FRV_GETTLSOFF:
2924 case R_FRV_TLSDESC_VALUE:
2925 case R_FRV_GOTTLSDESC12:
2926 case R_FRV_GOTTLSDESCHI:
2927 case R_FRV_GOTTLSDESCLO:
2928 case R_FRV_TLSMOFF12:
2929 case R_FRV_TLSMOFFHI:
2930 case R_FRV_TLSMOFFLO:
2931 case R_FRV_GOTTLSOFF12:
2932 case R_FRV_GOTTLSOFFHI:
2933 case R_FRV_GOTTLSOFFLO:
2934 case R_FRV_TLSOFF:
2935 case R_FRV_TLSDESC_RELAX:
2936 case R_FRV_GETTLSOFF_RELAX:
2937 case R_FRV_TLSOFF_RELAX:
2938 case R_FRV_TLSMOFF:
2939 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2940 relocation += tls_biased_base (info);
2941 break;
2942
2943 default:
2944 break;
2945 }
2946
2947 /* Try to apply TLS relaxations. */
2948 if (1)
2949 switch (r_type)
2950 {
2951
2952 #define LOCAL_EXEC_P(info, picrel) \
2953 ((info)->executable \
2954 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2955 #define INITIAL_EXEC_P(info, picrel) \
2956 (((info)->executable || (info)->flags & DF_STATIC_TLS) \
2957 && (picrel)->tlsoff_entry)
2958
2959 #define IN_RANGE_FOR_OFST12_P(value) \
2960 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2961 #define IN_RANGE_FOR_SETLOS_P(value) \
2962 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2963 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2964 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2965
2966 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2967 (LOCAL_EXEC_P ((info), (picrel)) \
2968 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2969 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2970 (INITIAL_EXEC_P ((info), (picrel)) \
2971 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2972
2973 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2974 (LOCAL_EXEC_P ((info), (picrel)))
2975 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2976 (INITIAL_EXEC_P ((info), (picrel)))
2977
2978 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2979 (LOCAL_EXEC_P ((info), (picrel)) \
2980 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2981
2982 case R_FRV_GETTLSOFF:
2983 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2984
2985 /* Is this a call instruction? */
2986 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2987 {
2988 r = info->callbacks->warning
2989 (info,
2990 _("R_FRV_GETTLSOFF not applied to a call instruction"),
2991 name, input_bfd, input_section, rel->r_offset);
2992 return FALSE;
2993 }
2994
2995 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2996 relocation + rel->r_addend))
2997 {
2998 /* Replace the call instruction (except the packing bit)
2999 with setlos #tlsmofflo(symbol+offset), gr9. */
3000 insn &= (unsigned long)0x80000000;
3001 insn |= (unsigned long)0x12fc0000;
3002 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3003
3004 r_type = R_FRV_TLSMOFFLO;
3005 howto = elf32_frv_howto_table + r_type;
3006 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3007 }
3008
3009 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
3010 {
3011 /* Replace the call instruction (except the packing bit)
3012 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
3013 insn &= (unsigned long)0x80000000;
3014 insn |= (unsigned long)0x12c8f000;
3015 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3016
3017 r_type = R_FRV_GOTTLSOFF12;
3018 howto = elf32_frv_howto_table + r_type;
3019 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3020 }
3021
3022 break;
3023
3024 case R_FRV_GOTTLSDESC12:
3025 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3026
3027 /* Is this an lddi instruction? */
3028 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
3029 {
3030 r = info->callbacks->warning
3031 (info,
3032 _("R_FRV_GOTTLSDESC12 not applied to an lddi instruction"),
3033 name, input_bfd, input_section, rel->r_offset);
3034 return FALSE;
3035 }
3036
3037 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3038 relocation + rel->r_addend)
3039 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3040 info))
3041 {
3042 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3043 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3044 Preserve the packing bit. */
3045 insn = (insn & (unsigned long)0x80000000)
3046 | ((insn + (unsigned long)0x02000000)
3047 & (unsigned long)0x7e000000);
3048 insn |= (unsigned long)0x00fc0000;
3049 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3050
3051 r_type = R_FRV_TLSMOFFLO;
3052 howto = elf32_frv_howto_table + r_type;
3053 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3054 }
3055
3056 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3057 relocation + rel->r_addend))
3058 {
3059 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3060 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3061 Preserve the packing bit. */
3062 insn = (insn & (unsigned long)0x80000000)
3063 | ((insn + (unsigned long)0x02000000)
3064 & (unsigned long)0x7e000000);
3065 insn |= (unsigned long)0x00f80000;
3066 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3067
3068 r_type = R_FRV_TLSMOFFHI;
3069 howto = elf32_frv_howto_table + r_type;
3070 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3071 }
3072
3073 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3074 {
3075 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3076 with ldi @(grB, #gottlsoff12(symbol+offset),
3077 gr<C+1>. Preserve the packing bit. If gottlsoff12
3078 overflows, we'll error out, but that's sort-of ok,
3079 since we'd started with gottlsdesc12, that's actually
3080 more demanding. Compiling with -fPIE instead of
3081 -fpie would fix it; linking with --relax should fix
3082 it as well. */
3083 insn = (insn & (unsigned long)0x80cbf000)
3084 | ((insn + (unsigned long)0x02000000)
3085 & (unsigned long)0x7e000000);
3086 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3087
3088 r_type = R_FRV_GOTTLSOFF12;
3089 howto = elf32_frv_howto_table + r_type;
3090 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3091 }
3092
3093 break;
3094
3095 case R_FRV_GOTTLSDESCHI:
3096 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3097
3098 /* Is this a sethi instruction? */
3099 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3100 {
3101 r = info->callbacks->warning
3102 (info,
3103 _("R_FRV_GOTTLSDESCHI not applied to a sethi instruction"),
3104 name, input_bfd, input_section, rel->r_offset);
3105 return FALSE;
3106 }
3107
3108 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3109 relocation + rel->r_addend)
3110 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3111 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3112 {
3113 /* Replace sethi with a nop. Preserve the packing bit. */
3114 insn &= (unsigned long)0x80000000;
3115 insn |= (unsigned long)0x00880000;
3116 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3117
3118 /* Nothing to relocate. */
3119 continue;
3120 }
3121
3122 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3123 {
3124 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3125 r_type = R_FRV_GOTTLSOFFHI;
3126 howto = elf32_frv_howto_table + r_type;
3127 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3128 }
3129
3130 break;
3131
3132 case R_FRV_GOTTLSDESCLO:
3133 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3134
3135 /* Is this a setlo or setlos instruction? */
3136 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3137 {
3138 r = info->callbacks->warning
3139 (info,
3140 _("R_FRV_GOTTLSDESCLO"
3141 " not applied to a setlo or setlos instruction"),
3142 name, input_bfd, input_section, rel->r_offset);
3143 return FALSE;
3144 }
3145
3146 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3147 relocation + rel->r_addend)
3148 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3149 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3150 {
3151 /* Replace setlo/setlos with a nop. Preserve the
3152 packing bit. */
3153 insn &= (unsigned long)0x80000000;
3154 insn |= (unsigned long)0x00880000;
3155 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3156
3157 /* Nothing to relocate. */
3158 continue;
3159 }
3160
3161 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3162 {
3163 /* If the corresponding sethi (if it exists) decayed
3164 to a nop, make sure this becomes (or already is) a
3165 setlos, not setlo. */
3166 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3167 {
3168 insn |= (unsigned long)0x00080000;
3169 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3170 }
3171
3172 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3173 r_type = R_FRV_GOTTLSOFFLO;
3174 howto = elf32_frv_howto_table + r_type;
3175 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3176 }
3177
3178 break;
3179
3180 case R_FRV_TLSDESC_RELAX:
3181 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3182
3183 /* Is this an ldd instruction? */
3184 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3185 {
3186 r = info->callbacks->warning
3187 (info,
3188 _("R_FRV_TLSDESC_RELAX not applied to an ldd instruction"),
3189 name, input_bfd, input_section, rel->r_offset);
3190 return FALSE;
3191 }
3192
3193 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3194 relocation + rel->r_addend)
3195 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3196 info))
3197 {
3198 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3199 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3200 Preserve the packing bit. */
3201 insn = (insn & (unsigned long)0x80000000)
3202 | ((insn + (unsigned long)0x02000000)
3203 & (unsigned long)0x7e000000);
3204 insn |= (unsigned long)0x00fc0000;
3205 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3206
3207 r_type = R_FRV_TLSMOFFLO;
3208 howto = elf32_frv_howto_table + r_type;
3209 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3210 }
3211
3212 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3213 relocation + rel->r_addend))
3214 {
3215 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3216 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3217 Preserve the packing bit. */
3218 insn = (insn & (unsigned long)0x80000000)
3219 | ((insn + (unsigned long)0x02000000)
3220 & (unsigned long)0x7e000000);
3221 insn |= (unsigned long)0x00f80000;
3222 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3223
3224 r_type = R_FRV_TLSMOFFHI;
3225 howto = elf32_frv_howto_table + r_type;
3226 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3227 }
3228
3229 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3230 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3231 {
3232 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3233 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3234 Preserve the packing bit. */
3235 insn = (insn & (unsigned long)0x8003f000)
3236 | (unsigned long)0x00c80000
3237 | ((insn + (unsigned long)0x02000000)
3238 & (unsigned long)0x7e000000);
3239 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3240
3241 r_type = R_FRV_GOTTLSOFF12;
3242 howto = elf32_frv_howto_table + r_type;
3243 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3244 }
3245
3246 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3247 {
3248 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3249 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3250 Preserve the packing bit. */
3251 insn = (insn & (unsigned long)0x81ffffbf)
3252 | ((insn + (unsigned long)0x02000000)
3253 & (unsigned long)0x7e000000);
3254 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3255
3256 /* #tlsoff(symbol+offset) is just a relaxation
3257 annotation, so there's nothing left to
3258 relocate. */
3259 continue;
3260 }
3261
3262 break;
3263
3264 case R_FRV_GETTLSOFF_RELAX:
3265 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3266
3267 /* Is this a calll or callil instruction? */
3268 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3269 {
3270 r = info->callbacks->warning
3271 (info,
3272 _("R_FRV_GETTLSOFF_RELAX"
3273 " not applied to a calll instruction"),
3274 name, input_bfd, input_section, rel->r_offset);
3275 return FALSE;
3276 }
3277
3278 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3279 relocation + rel->r_addend)
3280 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3281 info))
3282 {
3283 /* Replace calll with a nop. Preserve the packing bit. */
3284 insn &= (unsigned long)0x80000000;
3285 insn |= (unsigned long)0x00880000;
3286 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3287
3288 /* Nothing to relocate. */
3289 continue;
3290 }
3291
3292 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3293 relocation + rel->r_addend))
3294 {
3295 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3296 Preserve the packing bit. */
3297 insn &= (unsigned long)0x80000000;
3298 insn |= (unsigned long)0x12f40000;
3299 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3300
3301 r_type = R_FRV_TLSMOFFLO;
3302 howto = elf32_frv_howto_table + r_type;
3303 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3304 }
3305
3306 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3307 {
3308 /* Replace calll with a nop. Preserve the packing bit. */
3309 insn &= (unsigned long)0x80000000;
3310 insn |= (unsigned long)0x00880000;
3311 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3312
3313 /* Nothing to relocate. */
3314 continue;
3315 }
3316
3317 break;
3318
3319 case R_FRV_GOTTLSOFF12:
3320 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3321
3322 /* Is this an ldi instruction? */
3323 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3324 {
3325 r = info->callbacks->warning
3326 (info,
3327 _("R_FRV_GOTTLSOFF12 not applied to an ldi instruction"),
3328 name, input_bfd, input_section, rel->r_offset);
3329 return FALSE;
3330 }
3331
3332 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3333 relocation + rel->r_addend))
3334 {
3335 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3336 with setlos #tlsmofflo(symbol+offset), grC.
3337 Preserve the packing bit. */
3338 insn &= (unsigned long)0xfe000000;
3339 insn |= (unsigned long)0x00fc0000;
3340 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3341
3342 r_type = R_FRV_TLSMOFFLO;
3343 howto = elf32_frv_howto_table + r_type;
3344 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3345 }
3346
3347 break;
3348
3349 case R_FRV_GOTTLSOFFHI:
3350 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3351
3352 /* Is this a sethi instruction? */
3353 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3354 {
3355 r = info->callbacks->warning
3356 (info,
3357 _("R_FRV_GOTTLSOFFHI not applied to a sethi instruction"),
3358 name, input_bfd, input_section, rel->r_offset);
3359 return FALSE;
3360 }
3361
3362 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3363 relocation + rel->r_addend)
3364 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3365 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3366 {
3367 /* Replace sethi with a nop. Preserve the packing bit. */
3368 insn &= (unsigned long)0x80000000;
3369 insn |= (unsigned long)0x00880000;
3370 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3371
3372 /* Nothing to relocate. */
3373 continue;
3374 }
3375
3376 break;
3377
3378 case R_FRV_GOTTLSOFFLO:
3379 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3380
3381 /* Is this a setlo or setlos instruction? */
3382 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3383 {
3384 r = info->callbacks->warning
3385 (info,
3386 _("R_FRV_GOTTLSOFFLO"
3387 " not applied to a setlo or setlos instruction"),
3388 name, input_bfd, input_section, rel->r_offset);
3389 return FALSE;
3390 }
3391
3392 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3393 relocation + rel->r_addend)
3394 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3395 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3396 {
3397 /* Replace setlo/setlos with a nop. Preserve the
3398 packing bit. */
3399 insn &= (unsigned long)0x80000000;
3400 insn |= (unsigned long)0x00880000;
3401 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3402
3403 /* Nothing to relocate. */
3404 continue;
3405 }
3406
3407 break;
3408
3409 case R_FRV_TLSOFF_RELAX:
3410 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3411
3412 /* Is this an ld instruction? */
3413 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3414 {
3415 r = info->callbacks->warning
3416 (info,
3417 _("R_FRV_TLSOFF_RELAX not applied to an ld instruction"),
3418 name, input_bfd, input_section, rel->r_offset);
3419 return FALSE;
3420 }
3421
3422 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3423 relocation + rel->r_addend))
3424 {
3425 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3426 with setlos #tlsmofflo(symbol+offset), grC.
3427 Preserve the packing bit. */
3428 insn &= (unsigned long)0xfe000000;
3429 insn |= (unsigned long)0x00fc0000;
3430 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3431
3432 r_type = R_FRV_TLSMOFFLO;
3433 howto = elf32_frv_howto_table + r_type;
3434 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3435 }
3436
3437 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3438 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3439 {
3440 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3441 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3442 Preserve the packing bit. */
3443 insn = (insn & (unsigned long)0xfe03f000)
3444 | (unsigned long)0x00c80000;;
3445 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3446
3447 r_type = R_FRV_GOTTLSOFF12;
3448 howto = elf32_frv_howto_table + r_type;
3449 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3450 }
3451
3452 break;
3453
3454 case R_FRV_TLSMOFFHI:
3455 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3456
3457 /* Is this a sethi instruction? */
3458 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3459 {
3460 r = info->callbacks->warning
3461 (info,
3462 _("R_FRV_TLSMOFFHI not applied to a sethi instruction"),
3463 name, input_bfd, input_section, rel->r_offset);
3464 return FALSE;
3465 }
3466
3467 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3468 info))
3469 {
3470 /* Replace sethi with a nop. Preserve the packing bit. */
3471 insn &= (unsigned long)0x80000000;
3472 insn |= (unsigned long)0x00880000;
3473 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3474
3475 /* Nothing to relocate. */
3476 continue;
3477 }
3478
3479 break;
3480
3481 case R_FRV_TLSMOFFLO:
3482 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3483
3484 /* Is this a setlo or setlos instruction? */
3485 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3486 {
3487 r = info->callbacks->warning
3488 (info,
3489 _("R_FRV_TLSMOFFLO"
3490 " not applied to a setlo or setlos instruction"),
3491 name, input_bfd, input_section, rel->r_offset);
3492 return FALSE;
3493 }
3494
3495 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3496 info))
3497 /* If the corresponding sethi (if it exists) decayed
3498 to a nop, make sure this becomes (or already is) a
3499 setlos, not setlo. */
3500 {
3501 insn |= (unsigned long)0x00080000;
3502 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3503 }
3504
3505 break;
3506
3507 /*
3508 There's nothing to relax in these:
3509 R_FRV_TLSDESC_VALUE
3510 R_FRV_TLSOFF
3511 R_FRV_TLSMOFF12
3512 R_FRV_TLSMOFFHI
3513 R_FRV_TLSMOFFLO
3514 R_FRV_TLSMOFF
3515 */
3516
3517 default:
3518 break;
3519 }
3520
3521 switch (r_type)
3522 {
3523 case R_FRV_LABEL24:
3524 check_segment[0] = isec_segment;
3525 if (! IS_FDPIC (output_bfd))
3526 check_segment[1] = isec_segment;
3527 else if (picrel->plt)
3528 {
3529 relocation = frvfdpic_plt_section (info)->output_section->vma
3530 + frvfdpic_plt_section (info)->output_offset
3531 + picrel->plt_entry;
3532 check_segment[1] = plt_segment;
3533 }
3534 /* We don't want to warn on calls to undefined weak symbols,
3535 as calls to them must be protected by non-NULL tests
3536 anyway, and unprotected calls would invoke undefined
3537 behavior. */
3538 else if (picrel->symndx == -1
3539 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3540 check_segment[1] = check_segment[0];
3541 else
3542 check_segment[1] = sec
3543 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3544 : (unsigned)-1;
3545 break;
3546
3547 case R_FRV_GOT12:
3548 case R_FRV_GOTHI:
3549 case R_FRV_GOTLO:
3550 relocation = picrel->got_entry;
3551 check_segment[0] = check_segment[1] = got_segment;
3552 break;
3553
3554 case R_FRV_FUNCDESC_GOT12:
3555 case R_FRV_FUNCDESC_GOTHI:
3556 case R_FRV_FUNCDESC_GOTLO:
3557 relocation = picrel->fdgot_entry;
3558 check_segment[0] = check_segment[1] = got_segment;
3559 break;
3560
3561 case R_FRV_GOTOFFHI:
3562 case R_FRV_GOTOFF12:
3563 case R_FRV_GOTOFFLO:
3564 relocation -= frvfdpic_got_section (info)->output_section->vma
3565 + frvfdpic_got_section (info)->output_offset
3566 + frvfdpic_got_initial_offset (info);
3567 check_segment[0] = got_segment;
3568 check_segment[1] = sec
3569 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3570 : (unsigned)-1;
3571 break;
3572
3573 case R_FRV_FUNCDESC_GOTOFF12:
3574 case R_FRV_FUNCDESC_GOTOFFHI:
3575 case R_FRV_FUNCDESC_GOTOFFLO:
3576 relocation = picrel->fd_entry;
3577 check_segment[0] = check_segment[1] = got_segment;
3578 break;
3579
3580 case R_FRV_FUNCDESC:
3581 {
3582 int dynindx;
3583 bfd_vma addend = rel->r_addend;
3584
3585 if (! (h && h->root.type == bfd_link_hash_undefweak
3586 && FRVFDPIC_SYM_LOCAL (info, h)))
3587 {
3588 /* If the symbol is dynamic and there may be dynamic
3589 symbol resolution because we are or are linked with a
3590 shared library, emit a FUNCDESC relocation such that
3591 the dynamic linker will allocate the function
3592 descriptor. If the symbol needs a non-local function
3593 descriptor but binds locally (e.g., its visibility is
3594 protected, emit a dynamic relocation decayed to
3595 section+offset. */
3596 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3597 && FRVFDPIC_SYM_LOCAL (info, h)
3598 && !(info->executable && !info->pie))
3599 {
3600 dynindx = elf_section_data (h->root.u.def.section
3601 ->output_section)->dynindx;
3602 addend += h->root.u.def.section->output_offset
3603 + h->root.u.def.value;
3604 }
3605 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3606 {
3607 if (addend)
3608 {
3609 info->callbacks->warning
3610 (info, _("R_FRV_FUNCDESC references dynamic symbol with nonzero addend"),
3611 name, input_bfd, input_section, rel->r_offset);
3612 return FALSE;
3613 }
3614 dynindx = h->dynindx;
3615 }
3616 else
3617 {
3618 /* Otherwise, we know we have a private function
3619 descriptor, so reference it directly. */
3620 BFD_ASSERT (picrel->privfd);
3621 r_type = R_FRV_32;
3622 dynindx = elf_section_data (frvfdpic_got_section (info)
3623 ->output_section)->dynindx;
3624 addend = frvfdpic_got_section (info)->output_offset
3625 + frvfdpic_got_initial_offset (info)
3626 + picrel->fd_entry;
3627 }
3628
3629 /* If there is room for dynamic symbol resolution, emit
3630 the dynamic relocation. However, if we're linking an
3631 executable at a fixed location, we won't have emitted a
3632 dynamic symbol entry for the got section, so idx will
3633 be zero, which means we can and should compute the
3634 address of the private descriptor ourselves. */
3635 if (info->executable && !info->pie
3636 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3637 {
3638 addend += frvfdpic_got_section (info)->output_section->vma;
3639 if ((bfd_get_section_flags (output_bfd,
3640 input_section->output_section)
3641 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3642 {
3643 if (_frvfdpic_osec_readonly_p (output_bfd,
3644 input_section
3645 ->output_section))
3646 {
3647 info->callbacks->warning
3648 (info,
3649 _("cannot emit fixups in read-only section"),
3650 name, input_bfd, input_section, rel->r_offset);
3651 return FALSE;
3652 }
3653 _frvfdpic_add_rofixup (output_bfd,
3654 frvfdpic_gotfixup_section
3655 (info),
3656 _bfd_elf_section_offset
3657 (output_bfd, info,
3658 input_section, rel->r_offset)
3659 + input_section
3660 ->output_section->vma
3661 + input_section->output_offset,
3662 picrel);
3663 }
3664 }
3665 else if ((bfd_get_section_flags (output_bfd,
3666 input_section->output_section)
3667 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3668 {
3669 if (_frvfdpic_osec_readonly_p (output_bfd,
3670 input_section
3671 ->output_section))
3672 {
3673 info->callbacks->warning
3674 (info,
3675 _("cannot emit dynamic relocations in read-only section"),
3676 name, input_bfd, input_section, rel->r_offset);
3677 return FALSE;
3678 }
3679 _frvfdpic_add_dyn_reloc (output_bfd,
3680 frvfdpic_gotrel_section (info),
3681 _bfd_elf_section_offset
3682 (output_bfd, info,
3683 input_section, rel->r_offset)
3684 + input_section
3685 ->output_section->vma
3686 + input_section->output_offset,
3687 r_type, dynindx, addend, picrel);
3688 }
3689 else
3690 addend += frvfdpic_got_section (info)->output_section->vma;
3691 }
3692
3693 /* We want the addend in-place because dynamic
3694 relocations are REL. Setting relocation to it should
3695 arrange for it to be installed. */
3696 relocation = addend - rel->r_addend;
3697 }
3698 check_segment[0] = check_segment[1] = got_segment;
3699 break;
3700
3701 case R_FRV_32:
3702 if (! IS_FDPIC (output_bfd))
3703 {
3704 check_segment[0] = check_segment[1] = -1;
3705 break;
3706 }
3707 /* Fall through. */
3708 case R_FRV_FUNCDESC_VALUE:
3709 {
3710 int dynindx;
3711 bfd_vma addend = rel->r_addend;
3712
3713 /* If the symbol is dynamic but binds locally, use
3714 section+offset. */
3715 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3716 {
3717 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3718 {
3719 info->callbacks->warning
3720 (info, _("R_FRV_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
3721 name, input_bfd, input_section, rel->r_offset);
3722 return FALSE;
3723 }
3724 dynindx = h->dynindx;
3725 }
3726 else
3727 {
3728 if (h)
3729 addend += h->root.u.def.value;
3730 else
3731 addend += sym->st_value;
3732 if (osec)
3733 addend += osec->output_offset;
3734 if (osec && osec->output_section
3735 && ! bfd_is_abs_section (osec->output_section)
3736 && ! bfd_is_und_section (osec->output_section))
3737 dynindx = elf_section_data (osec->output_section)->dynindx;
3738 else
3739 dynindx = 0;
3740 }
3741
3742 /* If we're linking an executable at a fixed address, we
3743 can omit the dynamic relocation as long as the symbol
3744 is defined in the current link unit (which is implied
3745 by its output section not being NULL). */
3746 if (info->executable && !info->pie
3747 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3748 {
3749 if (osec)
3750 addend += osec->output_section->vma;
3751 if (IS_FDPIC (input_bfd)
3752 && (bfd_get_section_flags (output_bfd,
3753 input_section->output_section)
3754 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3755 {
3756 if (_frvfdpic_osec_readonly_p (output_bfd,
3757 input_section
3758 ->output_section))
3759 {
3760 info->callbacks->warning
3761 (info,
3762 _("cannot emit fixups in read-only section"),
3763 name, input_bfd, input_section, rel->r_offset);
3764 return FALSE;
3765 }
3766 if (!h || h->root.type != bfd_link_hash_undefweak)
3767 {
3768 _frvfdpic_add_rofixup (output_bfd,
3769 frvfdpic_gotfixup_section
3770 (info),
3771 _bfd_elf_section_offset
3772 (output_bfd, info,
3773 input_section, rel->r_offset)
3774 + input_section
3775 ->output_section->vma
3776 + input_section->output_offset,
3777 picrel);
3778 if (r_type == R_FRV_FUNCDESC_VALUE)
3779 _frvfdpic_add_rofixup
3780 (output_bfd,
3781 frvfdpic_gotfixup_section (info),
3782 _bfd_elf_section_offset
3783 (output_bfd, info,
3784 input_section, rel->r_offset)
3785 + input_section->output_section->vma
3786 + input_section->output_offset + 4, picrel);
3787 }
3788 }
3789 }
3790 else
3791 {
3792 if ((bfd_get_section_flags (output_bfd,
3793 input_section->output_section)
3794 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3795 {
3796 if (_frvfdpic_osec_readonly_p (output_bfd,
3797 input_section
3798 ->output_section))
3799 {
3800 info->callbacks->warning
3801 (info,
3802 _("cannot emit dynamic relocations in read-only section"),
3803 name, input_bfd, input_section, rel->r_offset);
3804 return FALSE;
3805 }
3806 _frvfdpic_add_dyn_reloc (output_bfd,
3807 frvfdpic_gotrel_section (info),
3808 _bfd_elf_section_offset
3809 (output_bfd, info,
3810 input_section, rel->r_offset)
3811 + input_section
3812 ->output_section->vma
3813 + input_section->output_offset,
3814 r_type, dynindx, addend, picrel);
3815 }
3816 else if (osec)
3817 addend += osec->output_section->vma;
3818 /* We want the addend in-place because dynamic
3819 relocations are REL. Setting relocation to it
3820 should arrange for it to be installed. */
3821 relocation = addend - rel->r_addend;
3822 }
3823
3824 if (r_type == R_FRV_FUNCDESC_VALUE)
3825 {
3826 /* If we've omitted the dynamic relocation, just emit
3827 the fixed addresses of the symbol and of the local
3828 GOT base offset. */
3829 if (info->executable && !info->pie
3830 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3831 bfd_put_32 (output_bfd,
3832 frvfdpic_got_section (info)->output_section->vma
3833 + frvfdpic_got_section (info)->output_offset
3834 + frvfdpic_got_initial_offset (info),
3835 contents + rel->r_offset + 4);
3836 else
3837 /* A function descriptor used for lazy or local
3838 resolving is initialized such that its high word
3839 contains the output section index in which the
3840 PLT entries are located, and the low word
3841 contains the offset of the lazy PLT entry entry
3842 point into that section. */
3843 bfd_put_32 (output_bfd,
3844 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3845 ? 0
3846 : _frvfdpic_osec_to_segment (output_bfd,
3847 sec
3848 ->output_section),
3849 contents + rel->r_offset + 4);
3850 }
3851 }
3852 check_segment[0] = check_segment[1] = got_segment;
3853 break;
3854
3855 case R_FRV_GPREL12:
3856 case R_FRV_GPRELU12:
3857 case R_FRV_GPREL32:
3858 case R_FRV_GPRELHI:
3859 case R_FRV_GPRELLO:
3860 check_segment[0] = gprel_segment;
3861 check_segment[1] = sec
3862 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3863 : (unsigned)-1;
3864 break;
3865
3866 case R_FRV_GETTLSOFF:
3867 relocation = frvfdpic_plt_section (info)->output_section->vma
3868 + frvfdpic_plt_section (info)->output_offset
3869 + picrel->tlsplt_entry;
3870 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3871 && picrel->tlsdesc_entry);
3872 check_segment[0] = isec_segment;
3873 check_segment[1] = plt_segment;
3874 break;
3875
3876 case R_FRV_GOTTLSDESC12:
3877 case R_FRV_GOTTLSDESCHI:
3878 case R_FRV_GOTTLSDESCLO:
3879 BFD_ASSERT (picrel->tlsdesc_entry);
3880 relocation = picrel->tlsdesc_entry;
3881 check_segment[0] = tls_segment;
3882 check_segment[1] = sec
3883 && ! bfd_is_abs_section (sec)
3884 && ! bfd_is_und_section (sec)
3885 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3886 : tls_segment;
3887 break;
3888
3889 case R_FRV_TLSMOFF12:
3890 case R_FRV_TLSMOFFHI:
3891 case R_FRV_TLSMOFFLO:
3892 case R_FRV_TLSMOFF:
3893 check_segment[0] = tls_segment;
3894 if (! sec)
3895 check_segment[1] = -1;
3896 else if (bfd_is_abs_section (sec)
3897 || bfd_is_und_section (sec))
3898 {
3899 relocation = 0;
3900 check_segment[1] = tls_segment;
3901 }
3902 else if (sec->output_section)
3903 {
3904 relocation -= tls_biased_base (info);
3905 check_segment[1] =
3906 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3907 }
3908 else
3909 check_segment[1] = -1;
3910 break;
3911
3912 case R_FRV_GOTTLSOFF12:
3913 case R_FRV_GOTTLSOFFHI:
3914 case R_FRV_GOTTLSOFFLO:
3915 BFD_ASSERT (picrel->tlsoff_entry);
3916 relocation = picrel->tlsoff_entry;
3917 check_segment[0] = tls_segment;
3918 check_segment[1] = sec
3919 && ! bfd_is_abs_section (sec)
3920 && ! bfd_is_und_section (sec)
3921 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3922 : tls_segment;
3923 break;
3924
3925 case R_FRV_TLSDESC_VALUE:
3926 case R_FRV_TLSOFF:
3927 /* These shouldn't be present in input object files. */
3928 check_segment[0] = check_segment[1] = isec_segment;
3929 break;
3930
3931 case R_FRV_TLSDESC_RELAX:
3932 case R_FRV_GETTLSOFF_RELAX:
3933 case R_FRV_TLSOFF_RELAX:
3934 /* These are just annotations for relaxation, nothing to do
3935 here. */
3936 continue;
3937
3938 default:
3939 check_segment[0] = isec_segment;
3940 check_segment[1] = sec
3941 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3942 : (unsigned)-1;
3943 break;
3944 }
3945
3946 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3947 {
3948 /* If you take this out, remove the #error from fdpic-static-6.d
3949 in the ld testsuite. */
3950 /* This helps catch problems in GCC while we can't do more
3951 than static linking. The idea is to test whether the
3952 input file basename is crt0.o only once. */
3953 if (silence_segment_error == 1)
3954 silence_segment_error =
3955 (strlen (input_bfd->filename) == 6
3956 && strcmp (input_bfd->filename, "crt0.o") == 0)
3957 || (strlen (input_bfd->filename) > 6
3958 && strcmp (input_bfd->filename
3959 + strlen (input_bfd->filename) - 7,
3960 "/crt0.o") == 0)
3961 ? -1 : 0;
3962 if (!silence_segment_error
3963 /* We don't want duplicate errors for undefined
3964 symbols. */
3965 && !(picrel && picrel->symndx == -1
3966 && picrel->d.h->root.type == bfd_link_hash_undefined))
3967 {
3968 if (info->shared || info->pie)
3969 (*_bfd_error_handler)
3970 (_("%B(%A+0x%lx): reloc against `%s': %s"),
3971 input_bfd, input_section, (long)rel->r_offset, name,
3972 _("relocation references a different segment"));
3973 else
3974 info->callbacks->warning
3975 (info,
3976 _("relocation references a different segment"),
3977 name, input_bfd, input_section, rel->r_offset);
3978 }
3979 if (!silence_segment_error && (info->shared || info->pie))
3980 return FALSE;
3981 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3982 }
3983
3984 switch (r_type)
3985 {
3986 case R_FRV_GOTOFFHI:
3987 case R_FRV_TLSMOFFHI:
3988 /* We need the addend to be applied before we shift the
3989 value right. */
3990 relocation += rel->r_addend;
3991 /* Fall through. */
3992 case R_FRV_GOTHI:
3993 case R_FRV_FUNCDESC_GOTHI:
3994 case R_FRV_FUNCDESC_GOTOFFHI:
3995 case R_FRV_GOTTLSOFFHI:
3996 case R_FRV_GOTTLSDESCHI:
3997 relocation >>= 16;
3998 /* Fall through. */
3999
4000 case R_FRV_GOTLO:
4001 case R_FRV_FUNCDESC_GOTLO:
4002 case R_FRV_GOTOFFLO:
4003 case R_FRV_FUNCDESC_GOTOFFLO:
4004 case R_FRV_GOTTLSOFFLO:
4005 case R_FRV_GOTTLSDESCLO:
4006 case R_FRV_TLSMOFFLO:
4007 relocation &= 0xffff;
4008 break;
4009
4010 default:
4011 break;
4012 }
4013
4014 switch (r_type)
4015 {
4016 case R_FRV_LABEL24:
4017 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
4018 break;
4019 /* Fall through. */
4020
4021 /* When referencing a GOT entry, a function descriptor or a
4022 PLT, we don't want the addend to apply to the reference,
4023 but rather to the referenced symbol. The actual entry
4024 will have already been created taking the addend into
4025 account, so cancel it out here. */
4026 case R_FRV_GOT12:
4027 case R_FRV_GOTHI:
4028 case R_FRV_GOTLO:
4029 case R_FRV_FUNCDESC_GOT12:
4030 case R_FRV_FUNCDESC_GOTHI:
4031 case R_FRV_FUNCDESC_GOTLO:
4032 case R_FRV_FUNCDESC_GOTOFF12:
4033 case R_FRV_FUNCDESC_GOTOFFHI:
4034 case R_FRV_FUNCDESC_GOTOFFLO:
4035 case R_FRV_GETTLSOFF:
4036 case R_FRV_GOTTLSDESC12:
4037 case R_FRV_GOTTLSDESCHI:
4038 case R_FRV_GOTTLSDESCLO:
4039 case R_FRV_GOTTLSOFF12:
4040 case R_FRV_GOTTLSOFFHI:
4041 case R_FRV_GOTTLSOFFLO:
4042 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
4043 here, since we do want to apply the addend to the others.
4044 Note that we've applied the addend to GOTOFFHI before we
4045 shifted it right. */
4046 case R_FRV_GOTOFFHI:
4047 case R_FRV_TLSMOFFHI:
4048 relocation -= rel->r_addend;
4049 break;
4050
4051 default:
4052 break;
4053 }
4054
4055 if (r_type == R_FRV_HI16)
4056 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
4057
4058 else if (r_type == R_FRV_LO16)
4059 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4060
4061 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4062 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4063 contents, relocation);
4064
4065 else if (r_type == R_FRV_GPREL12)
4066 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4067 contents, relocation);
4068
4069 else if (r_type == R_FRV_GPRELU12)
4070 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4071 contents, relocation);
4072
4073 else if (r_type == R_FRV_GPRELLO)
4074 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4075 contents, relocation);
4076
4077 else if (r_type == R_FRV_GPRELHI)
4078 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4079 contents, relocation);
4080
4081 else if (r_type == R_FRV_TLSOFF
4082 || r_type == R_FRV_TLSDESC_VALUE)
4083 r = bfd_reloc_notsupported;
4084
4085 else
4086 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4087 rel, relocation);
4088
4089 if (r != bfd_reloc_ok)
4090 {
4091 const char * msg = (const char *) NULL;
4092
4093 switch (r)
4094 {
4095 case bfd_reloc_overflow:
4096 r = info->callbacks->reloc_overflow
4097 (info, (h ? &h->root : NULL), name, howto->name,
4098 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4099 break;
4100
4101 case bfd_reloc_undefined:
4102 r = info->callbacks->undefined_symbol
4103 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4104 break;
4105
4106 case bfd_reloc_outofrange:
4107 msg = _("internal error: out of range error");
4108 break;
4109
4110 case bfd_reloc_notsupported:
4111 msg = _("internal error: unsupported relocation error");
4112 break;
4113
4114 case bfd_reloc_dangerous:
4115 msg = _("internal error: dangerous relocation");
4116 break;
4117
4118 default:
4119 msg = _("internal error: unknown error");
4120 break;
4121 }
4122
4123 if (msg)
4124 {
4125 (*_bfd_error_handler)
4126 (_("%B(%A+0x%lx): reloc against `%s': %s"),
4127 input_bfd, input_section, (long)rel->r_offset, name, msg);
4128 return FALSE;
4129 }
4130
4131 if (! r)
4132 return FALSE;
4133 }
4134 }
4135
4136 return TRUE;
4137 }
4138 \f
4139 /* Return the section that should be marked against GC for a given
4140 relocation. */
4141
4142 static asection *
4143 elf32_frv_gc_mark_hook (sec, info, rel, h, sym)
4144 asection *sec;
4145 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4146 Elf_Internal_Rela *rel;
4147 struct elf_link_hash_entry *h;
4148 Elf_Internal_Sym *sym;
4149 {
4150 if (h != NULL)
4151 {
4152 switch (ELF32_R_TYPE (rel->r_info))
4153 {
4154 case R_FRV_GNU_VTINHERIT:
4155 case R_FRV_GNU_VTENTRY:
4156 break;
4157
4158 default:
4159 switch (h->root.type)
4160 {
4161 default:
4162 break;
4163
4164 case bfd_link_hash_defined:
4165 case bfd_link_hash_defweak:
4166 return h->root.u.def.section;
4167
4168 case bfd_link_hash_common:
4169 return h->root.u.c.p->section;
4170 }
4171 }
4172 }
4173 else
4174 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
4175
4176 return NULL;
4177 }
4178
4179 /* Update the got entry reference counts for the section being removed. */
4180
4181 static bfd_boolean
4182 elf32_frv_gc_sweep_hook (abfd, info, sec, relocs)
4183 bfd *abfd ATTRIBUTE_UNUSED;
4184 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4185 asection *sec ATTRIBUTE_UNUSED;
4186 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
4187 {
4188 return TRUE;
4189 }
4190
4191 \f
4192 /* Hook called by the linker routine which adds symbols from an object
4193 file. We use it to put .comm items in .scomm, and not .comm. */
4194
4195 static bfd_boolean
4196 elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
4197 bfd *abfd;
4198 struct bfd_link_info *info;
4199 Elf_Internal_Sym *sym;
4200 const char **namep ATTRIBUTE_UNUSED;
4201 flagword *flagsp ATTRIBUTE_UNUSED;
4202 asection **secp;
4203 bfd_vma *valp;
4204 {
4205 if (sym->st_shndx == SHN_COMMON
4206 && !info->relocatable
4207 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4208 {
4209 /* Common symbols less than or equal to -G nn bytes are
4210 automatically put into .sbss. */
4211
4212 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4213
4214 if (scomm == NULL)
4215 {
4216 scomm = bfd_make_section_with_flags (abfd, ".scommon",
4217 (SEC_ALLOC
4218 | SEC_IS_COMMON
4219 | SEC_LINKER_CREATED));
4220 if (scomm == NULL)
4221 return FALSE;
4222 }
4223
4224 *secp = scomm;
4225 *valp = sym->st_size;
4226 }
4227
4228 return TRUE;
4229 }
4230
4231 /* We need dynamic symbols for every section, since segments can
4232 relocate independently. */
4233 static bfd_boolean
4234 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4235 struct bfd_link_info *info
4236 ATTRIBUTE_UNUSED,
4237 asection *p ATTRIBUTE_UNUSED)
4238 {
4239 switch (elf_section_data (p)->this_hdr.sh_type)
4240 {
4241 case SHT_PROGBITS:
4242 case SHT_NOBITS:
4243 /* If sh_type is yet undecided, assume it could be
4244 SHT_PROGBITS/SHT_NOBITS. */
4245 case SHT_NULL:
4246 return FALSE;
4247
4248 /* There shouldn't be section relative relocations
4249 against any other section. */
4250 default:
4251 return TRUE;
4252 }
4253 }
4254
4255 /* Create a .got section, as well as its additional info field. This
4256 is almost entirely copied from
4257 elflink.c:_bfd_elf_create_got_section(). */
4258
4259 static bfd_boolean
4260 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4261 {
4262 flagword flags, pltflags;
4263 asection *s;
4264 struct elf_link_hash_entry *h;
4265 struct bfd_link_hash_entry *bh;
4266 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4267 int ptralign;
4268 int offset;
4269
4270 /* This function may be called more than once. */
4271 s = bfd_get_section_by_name (abfd, ".got");
4272 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
4273 return TRUE;
4274
4275 /* Machine specific: although pointers are 32-bits wide, we want the
4276 GOT to be aligned to a 64-bit boundary, such that function
4277 descriptors in it can be accessed with 64-bit loads and
4278 stores. */
4279 ptralign = 3;
4280
4281 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4282 | SEC_LINKER_CREATED);
4283 pltflags = flags;
4284
4285 s = bfd_make_section_with_flags (abfd, ".got", flags);
4286 if (s == NULL
4287 || !bfd_set_section_alignment (abfd, s, ptralign))
4288 return FALSE;
4289
4290 if (bed->want_got_plt)
4291 {
4292 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
4293 if (s == NULL
4294 || !bfd_set_section_alignment (abfd, s, ptralign))
4295 return FALSE;
4296 }
4297
4298 if (bed->want_got_sym)
4299 {
4300 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4301 (or .got.plt) section. We don't do this in the linker script
4302 because we don't want to define the symbol if we are not creating
4303 a global offset table. */
4304 bh = NULL;
4305 if (!(_bfd_generic_link_add_one_symbol
4306 (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
4307 0, (const char *) NULL, FALSE, bed->collect, &bh)))
4308 return FALSE;
4309 h = (struct elf_link_hash_entry *) bh;
4310 h->def_regular = 1;
4311 h->type = STT_OBJECT;
4312 /* h->other = STV_HIDDEN; */ /* Should we? */
4313
4314 /* Machine-specific: we want the symbol for executables as
4315 well. */
4316 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4317 return FALSE;
4318
4319 elf_hash_table (info)->hgot = h;
4320 }
4321
4322 /* The first bit of the global offset table is the header. */
4323 s->size += bed->got_header_size;
4324
4325 /* This is the machine-specific part. Create and initialize section
4326 data for the got. */
4327 if (IS_FDPIC (abfd))
4328 {
4329 frvfdpic_got_section (info) = s;
4330 frvfdpic_relocs_info (info) = htab_try_create (1,
4331 frvfdpic_relocs_info_hash,
4332 frvfdpic_relocs_info_eq,
4333 (htab_del) NULL);
4334 if (! frvfdpic_relocs_info (info))
4335 return FALSE;
4336
4337 s = bfd_make_section_with_flags (abfd, ".rel.got",
4338 (flags | SEC_READONLY));
4339 if (s == NULL
4340 || ! bfd_set_section_alignment (abfd, s, 2))
4341 return FALSE;
4342
4343 frvfdpic_gotrel_section (info) = s;
4344
4345 /* Machine-specific. */
4346 s = bfd_make_section_with_flags (abfd, ".rofixup",
4347 (flags | SEC_READONLY));
4348 if (s == NULL
4349 || ! bfd_set_section_alignment (abfd, s, 2))
4350 return FALSE;
4351
4352 frvfdpic_gotfixup_section (info) = s;
4353 offset = -2048;
4354 flags = BSF_GLOBAL;
4355 }
4356 else
4357 {
4358 offset = 2048;
4359 flags = BSF_GLOBAL | BSF_WEAK;
4360 }
4361
4362 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4363 turns out that we're linking with a different linker script, the
4364 linker script will override it. */
4365 bh = NULL;
4366 if (!(_bfd_generic_link_add_one_symbol
4367 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4368 bed->collect, &bh)))
4369 return FALSE;
4370 h = (struct elf_link_hash_entry *) bh;
4371 h->def_regular = 1;
4372 h->type = STT_OBJECT;
4373 /* h->other = STV_HIDDEN; */ /* Should we? */
4374
4375 /* Machine-specific: we want the symbol for executables as well. */
4376 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4377 return FALSE;
4378
4379 if (!IS_FDPIC (abfd))
4380 return TRUE;
4381
4382 /* FDPIC supports Thread Local Storage, and this may require a
4383 procedure linkage table for TLS PLT entries. */
4384
4385 /* This is mostly copied from
4386 elflink.c:_bfd_elf_create_dynamic_sections(). */
4387
4388 flags = pltflags;
4389 pltflags |= SEC_CODE;
4390 if (bed->plt_not_loaded)
4391 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4392 if (bed->plt_readonly)
4393 pltflags |= SEC_READONLY;
4394
4395 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
4396 if (s == NULL
4397 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4398 return FALSE;
4399 /* FRV-specific: remember it. */
4400 frvfdpic_plt_section (info) = s;
4401
4402 if (bed->want_plt_sym)
4403 {
4404 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4405 .plt section. */
4406 struct elf_link_hash_entry *h;
4407 struct bfd_link_hash_entry *bh = NULL;
4408
4409 if (! (_bfd_generic_link_add_one_symbol
4410 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
4411 FALSE, get_elf_backend_data (abfd)->collect, &bh)))
4412 return FALSE;
4413 h = (struct elf_link_hash_entry *) bh;
4414 h->def_regular = 1;
4415 h->type = STT_OBJECT;
4416 /* h->other = STV_HIDDEN; */ /* Should we? */
4417
4418 if (! info->executable
4419 && ! bfd_elf_link_record_dynamic_symbol (info, h))
4420 return FALSE;
4421 }
4422
4423 /* FRV-specific: we want rel relocations for the plt. */
4424 s = bfd_make_section_with_flags (abfd, ".rel.plt",
4425 flags | SEC_READONLY);
4426 if (s == NULL
4427 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4428 return FALSE;
4429 /* FRV-specific: remember it. */
4430 frvfdpic_pltrel_section (info) = s;
4431
4432 return TRUE;
4433 }
4434
4435 /* Make sure the got and plt sections exist, and that our pointers in
4436 the link hash table point to them. */
4437
4438 static bfd_boolean
4439 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4440 {
4441 /* This is mostly copied from
4442 elflink.c:_bfd_elf_create_dynamic_sections(). */
4443 flagword flags;
4444 asection *s;
4445 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4446
4447 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4448 | SEC_LINKER_CREATED);
4449
4450 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4451 .rel[a].bss sections. */
4452
4453 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4454 way. */
4455 if (! _frv_create_got_section (abfd, info))
4456 return FALSE;
4457
4458 /* FRV-specific: make sure we created everything we wanted. */
4459 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4460 && frvfdpic_gotfixup_section (info)
4461 && frvfdpic_plt_section (info)
4462 && frvfdpic_pltrel_section (info));
4463
4464 if (bed->want_dynbss)
4465 {
4466 /* The .dynbss section is a place to put symbols which are defined
4467 by dynamic objects, are referenced by regular objects, and are
4468 not functions. We must allocate space for them in the process
4469 image and use a R_*_COPY reloc to tell the dynamic linker to
4470 initialize them at run time. The linker script puts the .dynbss
4471 section into the .bss section of the final image. */
4472 s = bfd_make_section_with_flags (abfd, ".dynbss",
4473 SEC_ALLOC | SEC_LINKER_CREATED);
4474 if (s == NULL)
4475 return FALSE;
4476
4477 /* The .rel[a].bss section holds copy relocs. This section is not
4478 normally needed. We need to create it here, though, so that the
4479 linker will map it to an output section. We can't just create it
4480 only if we need it, because we will not know whether we need it
4481 until we have seen all the input files, and the first time the
4482 main linker code calls BFD after examining all the input files
4483 (size_dynamic_sections) the input sections have already been
4484 mapped to the output sections. If the section turns out not to
4485 be needed, we can discard it later. We will never need this
4486 section when generating a shared object, since they do not use
4487 copy relocs. */
4488 if (! info->shared)
4489 {
4490 s = bfd_make_section_with_flags (abfd,
4491 (bed->default_use_rela_p
4492 ? ".rela.bss" : ".rel.bss"),
4493 flags | SEC_READONLY);
4494 if (s == NULL
4495 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4496 return FALSE;
4497 }
4498 }
4499
4500 return TRUE;
4501 }
4502
4503 /* Compute the total GOT and PLT size required by each symbol in each
4504 range. Symbols may require up to 4 words in the GOT: an entry
4505 pointing to the symbol, an entry pointing to its function
4506 descriptor, and a private function descriptors taking two
4507 words. */
4508
4509 static void
4510 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4511 struct _frvfdpic_dynamic_got_info *dinfo)
4512 {
4513 /* Allocate space for a GOT entry pointing to the symbol. */
4514 if (entry->got12)
4515 dinfo->got12 += 4;
4516 else if (entry->gotlos)
4517 dinfo->gotlos += 4;
4518 else if (entry->gothilo)
4519 dinfo->gothilo += 4;
4520 else
4521 entry->relocs32--;
4522 entry->relocs32++;
4523
4524 /* Allocate space for a GOT entry pointing to the function
4525 descriptor. */
4526 if (entry->fdgot12)
4527 dinfo->got12 += 4;
4528 else if (entry->fdgotlos)
4529 dinfo->gotlos += 4;
4530 else if (entry->fdgothilo)
4531 dinfo->gothilo += 4;
4532 else
4533 entry->relocsfd--;
4534 entry->relocsfd++;
4535
4536 /* Decide whether we need a PLT entry, a function descriptor in the
4537 GOT, and a lazy PLT entry for this symbol. */
4538 entry->plt = entry->call
4539 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4540 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4541 entry->privfd = entry->plt
4542 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4543 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4544 && (entry->symndx != -1
4545 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4546 entry->lazyplt = entry->privfd
4547 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4548 && ! (dinfo->info->flags & DF_BIND_NOW)
4549 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4550
4551 /* Allocate space for a function descriptor. */
4552 if (entry->fdgoff12)
4553 dinfo->fd12 += 8;
4554 else if (entry->fdgofflos)
4555 dinfo->fdlos += 8;
4556 else if (entry->privfd && entry->plt)
4557 dinfo->fdplt += 8;
4558 else if (entry->privfd)
4559 dinfo->fdhilo += 8;
4560 else
4561 entry->relocsfdv--;
4562 entry->relocsfdv++;
4563
4564 if (entry->lazyplt)
4565 dinfo->lzplt += 8;
4566 }
4567
4568 /* Compute the total GOT size required by each TLS symbol in each
4569 range. Symbols may require up to 5 words in the GOT: an entry
4570 holding the TLS offset for the symbol, and an entry with a full TLS
4571 descriptor taking 4 words. */
4572
4573 static void
4574 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4575 struct _frvfdpic_dynamic_got_info *dinfo,
4576 bfd_boolean subtract)
4577 {
4578 const int l = subtract ? -1 : 1;
4579
4580 /* Allocate space for a GOT entry with the TLS offset of the
4581 symbol. */
4582 if (entry->tlsoff12)
4583 dinfo->got12 += 4 * l;
4584 else if (entry->tlsofflos)
4585 dinfo->gotlos += 4 * l;
4586 else if (entry->tlsoffhilo)
4587 dinfo->gothilo += 4 * l;
4588 else
4589 entry->relocstlsoff -= l;
4590 entry->relocstlsoff += l;
4591
4592 /* If there's any TLSOFF relocation, mark the output file as not
4593 suitable for dlopening. This mark will remain even if we relax
4594 all such relocations, but this is not a problem, since we'll only
4595 do so for executables, and we definitely don't want anyone
4596 dlopening executables. */
4597 if (entry->relocstlsoff)
4598 dinfo->info->flags |= DF_STATIC_TLS;
4599
4600 /* Allocate space for a TLS descriptor. */
4601 if (entry->tlsdesc12)
4602 dinfo->tlsd12 += 8 * l;
4603 else if (entry->tlsdesclos)
4604 dinfo->tlsdlos += 8 * l;
4605 else if (entry->tlsplt)
4606 dinfo->tlsdplt += 8 * l;
4607 else if (entry->tlsdeschilo)
4608 dinfo->tlsdhilo += 8 * l;
4609 else
4610 entry->relocstlsd -= l;
4611 entry->relocstlsd += l;
4612 }
4613
4614 /* Compute the number of dynamic relocations and fixups that a symbol
4615 requires, and add (or subtract) from the grand and per-symbol
4616 totals. */
4617
4618 static void
4619 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4620 struct _frvfdpic_dynamic_got_info *dinfo,
4621 bfd_boolean subtract)
4622 {
4623 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4624
4625 if (!dinfo->info->executable || dinfo->info->pie)
4626 {
4627 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4628 + entry->relocstlsd;
4629
4630 /* In the executable, TLS relocations to symbols that bind
4631 locally (including those that resolve to global TLS offsets)
4632 are resolved immediately, without any need for fixups or
4633 dynamic relocations. In shared libraries, however, we must
4634 emit dynamic relocations even for local symbols, because we
4635 don't know the module id the library is going to get at
4636 run-time, nor its TLS base offset. */
4637 if (!dinfo->info->executable
4638 || (entry->symndx == -1
4639 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4640 relocs += entry->relocstlsoff;
4641 }
4642 else
4643 {
4644 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4645 {
4646 if (entry->symndx != -1
4647 || entry->d.h->root.type != bfd_link_hash_undefweak)
4648 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4649 fixups += entry->relocstlsd;
4650 tlsrets += entry->relocstlsd;
4651 }
4652 else
4653 {
4654 relocs += entry->relocs32 + entry->relocsfdv
4655 + entry->relocstlsoff + entry->relocstlsd;
4656 }
4657
4658 if (entry->symndx != -1
4659 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4660 {
4661 if (entry->symndx != -1
4662 || entry->d.h->root.type != bfd_link_hash_undefweak)
4663 fixups += entry->relocsfd;
4664 }
4665 else
4666 relocs += entry->relocsfd;
4667 }
4668
4669 if (subtract)
4670 {
4671 relocs = - relocs;
4672 fixups = - fixups;
4673 tlsrets = - tlsrets;
4674 }
4675
4676 entry->dynrelocs += relocs;
4677 entry->fixups += fixups;
4678 dinfo->relocs += relocs;
4679 dinfo->fixups += fixups;
4680 dinfo->tls_ret_refs += tlsrets;
4681 }
4682
4683 /* Look for opportunities to relax TLS relocations. We can assume
4684 we're linking the main executable or a static-tls library, since
4685 otherwise we wouldn't have got here. When relaxing, we have to
4686 first undo any previous accounting of TLS uses of fixups, dynamic
4687 relocations, GOT and PLT entries. */
4688
4689 static void
4690 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4691 struct _frvfdpic_dynamic_got_info *dinfo,
4692 bfd_boolean relaxing)
4693 {
4694 bfd_boolean changed = ! relaxing;
4695
4696 BFD_ASSERT (dinfo->info->executable
4697 || (dinfo->info->flags & DF_STATIC_TLS));
4698
4699 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4700 {
4701 if (! changed)
4702 {
4703 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4704 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4705 changed = TRUE;
4706 }
4707
4708 /* When linking an executable, we can always decay GOTTLSDESC to
4709 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4710 When linking a static-tls shared library, using TLSMOFF is
4711 not an option, but we can still use GOTTLSOFF. When decaying
4712 to GOTTLSOFF, we must keep the GOT entry in range. We know
4713 it has to fit because we'll be trading the 4 words of hte TLS
4714 descriptor for a single word in the same range. */
4715 if (! dinfo->info->executable
4716 || (entry->symndx == -1
4717 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4718 {
4719 entry->tlsoff12 |= entry->tlsdesc12;
4720 entry->tlsofflos |= entry->tlsdesclos;
4721 entry->tlsoffhilo |= entry->tlsdeschilo;
4722 }
4723
4724 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4725 }
4726
4727 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4728 main executable. We have to check whether the symbol's TLSOFF is
4729 in range for a setlos. For symbols with a hash entry, we can
4730 determine exactly what to do; for others locals, we don't have
4731 addresses handy, so we use the size of the TLS section as an
4732 approximation. If we get it wrong, we'll retain a GOT entry
4733 holding the TLS offset (without dynamic relocations or fixups),
4734 but we'll still optimize away the loads from it. Since TLS sizes
4735 are generally very small, it's probably not worth attempting to
4736 do better than this. */
4737 if ((entry->tlsplt
4738 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4739 && dinfo->info->executable && relaxing
4740 && ((entry->symndx == -1
4741 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4742 /* The above may hold for an undefweak TLS symbol, so make
4743 sure we don't have this case before accessing def.value
4744 and def.section. */
4745 && (entry->d.h->root.type == bfd_link_hash_undefweak
4746 || (bfd_vma)(entry->d.h->root.u.def.value
4747 + (entry->d.h->root.u.def.section
4748 ->output_section->vma)
4749 + entry->d.h->root.u.def.section->output_offset
4750 + entry->addend
4751 - tls_biased_base (dinfo->info)
4752 + 32768) < (bfd_vma)65536))
4753 || (entry->symndx != -1
4754 && (elf_hash_table (dinfo->info)->tls_sec->size
4755 + abs (entry->addend) < 32768 + FRVFDPIC_TLS_BIAS))))
4756 {
4757 if (! changed)
4758 {
4759 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4760 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4761 changed = TRUE;
4762 }
4763
4764 entry->tlsplt =
4765 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4766 }
4767
4768 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4769 have a #gottlsoff12 relocation for this entry, or if we can fit
4770 one more in the 12-bit (and 16-bit) ranges. */
4771 if (entry->tlsplt
4772 && (entry->tlsoff12
4773 || (relaxing
4774 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4775 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4776 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4777 <= 65536 - 12 - 4))))
4778 {
4779 if (! changed)
4780 {
4781 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4782 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4783 changed = TRUE;
4784 }
4785
4786 entry->tlsoff12 = 1;
4787 entry->tlsplt = 0;
4788 }
4789
4790 if (changed)
4791 {
4792 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4793 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4794 }
4795
4796 return;
4797 }
4798
4799 /* Compute the total GOT and PLT size required by each symbol in each range. *
4800 Symbols may require up to 4 words in the GOT: an entry pointing to
4801 the symbol, an entry pointing to its function descriptor, and a
4802 private function descriptors taking two words. */
4803
4804 static int
4805 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4806 {
4807 struct frvfdpic_relocs_info *entry = *entryp;
4808 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4809
4810 _frvfdpic_count_nontls_entries (entry, dinfo);
4811
4812 if (dinfo->info->executable || (dinfo->info->flags & DF_STATIC_TLS))
4813 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4814 else
4815 {
4816 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4817 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4818 }
4819
4820 return 1;
4821 }
4822
4823 /* Determine the positive and negative ranges to be used by each
4824 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4825 double-word boundary, are the minimum (negative) and maximum
4826 (positive) GOT offsets already used by previous ranges, except for
4827 an ODD entry that may have been left behind. GOT and FD indicate
4828 the size of GOT entries and function descriptors that must be
4829 placed within the range from -WRAP to WRAP. If there's room left,
4830 up to FDPLT bytes should be reserved for additional function
4831 descriptors. */
4832
4833 inline static bfd_signed_vma
4834 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4835 bfd_signed_vma fdcur,
4836 bfd_signed_vma odd,
4837 bfd_signed_vma cur,
4838 bfd_vma got,
4839 bfd_vma fd,
4840 bfd_vma fdplt,
4841 bfd_vma tlsd,
4842 bfd_vma tlsdplt,
4843 bfd_vma wrap)
4844 {
4845 bfd_signed_vma wrapmin = -wrap;
4846 const bfd_vma tdescsz = 8;
4847
4848 /* Start at the given initial points. */
4849 gad->fdcur = fdcur;
4850 gad->cur = cur;
4851
4852 /* If we had an incoming odd word and we have any got entries that
4853 are going to use it, consume it, otherwise leave gad->odd at
4854 zero. We might force gad->odd to zero and return the incoming
4855 odd such that it is used by the next range, but then GOT entries
4856 might appear to be out of order and we wouldn't be able to
4857 shorten the GOT by one word if it turns out to end with an
4858 unpaired GOT entry. */
4859 if (odd && got)
4860 {
4861 gad->odd = odd;
4862 got -= 4;
4863 odd = 0;
4864 }
4865 else
4866 gad->odd = 0;
4867
4868 /* If we're left with an unpaired GOT entry, compute its location
4869 such that we can return it. Otherwise, if got doesn't require an
4870 odd number of words here, either odd was already zero in the
4871 block above, or it was set to zero because got was non-zero, or
4872 got was already zero. In the latter case, we want the value of
4873 odd to carry over to the return statement, so we don't want to
4874 reset odd unless the condition below is true. */
4875 if (got & 4)
4876 {
4877 odd = cur + got;
4878 got += 4;
4879 }
4880
4881 /* Compute the tentative boundaries of this range. */
4882 gad->max = cur + got;
4883 gad->min = fdcur - fd;
4884 gad->fdplt = 0;
4885
4886 /* If function descriptors took too much space, wrap some of them
4887 around. */
4888 if (gad->min < wrapmin)
4889 {
4890 gad->max += wrapmin - gad->min;
4891 gad->tmin = gad->min = wrapmin;
4892 }
4893
4894 /* If GOT entries took too much space, wrap some of them around.
4895 This may well cause gad->min to become lower than wrapmin. This
4896 will cause a relocation overflow later on, so we don't have to
4897 report it here . */
4898 if ((bfd_vma) gad->max > wrap)
4899 {
4900 gad->min -= gad->max - wrap;
4901 gad->max = wrap;
4902 }
4903
4904 /* Add TLS descriptors. */
4905 gad->tmax = gad->max + tlsd;
4906 gad->tmin = gad->min;
4907 gad->tlsdplt = 0;
4908
4909 /* If TLS descriptors took too much space, wrap an integral number
4910 of them around. */
4911 if ((bfd_vma) gad->tmax > wrap)
4912 {
4913 bfd_vma wrapsize = gad->tmax - wrap;
4914
4915 wrapsize += tdescsz / 2;
4916 wrapsize &= ~ tdescsz / 2;
4917
4918 gad->tmin -= wrapsize;
4919 gad->tmax -= wrapsize;
4920 }
4921
4922 /* If there is space left and we have function descriptors
4923 referenced in PLT entries that could take advantage of shorter
4924 offsets, place them now. */
4925 if (fdplt && gad->tmin > wrapmin)
4926 {
4927 bfd_vma fds;
4928
4929 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4930 fds = gad->tmin - wrapmin;
4931 else
4932 fds = fdplt;
4933
4934 fdplt -= fds;
4935 gad->min -= fds;
4936 gad->tmin -= fds;
4937 gad->fdplt += fds;
4938 }
4939
4940 /* If there is more space left, try to place some more function
4941 descriptors for PLT entries. */
4942 if (fdplt && (bfd_vma) gad->tmax < wrap)
4943 {
4944 bfd_vma fds;
4945
4946 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4947 fds = wrap - gad->tmax;
4948 else
4949 fds = fdplt;
4950
4951 fdplt -= fds;
4952 gad->max += fds;
4953 gad->tmax += fds;
4954 gad->fdplt += fds;
4955 }
4956
4957 /* If there is space left and we have TLS descriptors referenced in
4958 PLT entries that could take advantage of shorter offsets, place
4959 them now. */
4960 if (tlsdplt && gad->tmin > wrapmin)
4961 {
4962 bfd_vma tlsds;
4963
4964 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4965 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4966 else
4967 tlsds = tlsdplt;
4968
4969 tlsdplt -= tlsds;
4970 gad->tmin -= tlsds;
4971 gad->tlsdplt += tlsds;
4972 }
4973
4974 /* If there is more space left, try to place some more TLS
4975 descriptors for PLT entries. Although we could try to fit an
4976 additional TLS descriptor with half of it just before before the
4977 wrap point and another right past the wrap point, this might
4978 cause us to run out of space for the next region, so don't do
4979 it. */
4980 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4981 {
4982 bfd_vma tlsds;
4983
4984 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4985 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4986 else
4987 tlsds = tlsdplt;
4988
4989 tlsdplt -= tlsds;
4990 gad->tmax += tlsds;
4991 gad->tlsdplt += tlsds;
4992 }
4993
4994 /* If odd was initially computed as an offset past the wrap point,
4995 wrap it around. */
4996 if (odd > gad->max)
4997 odd = gad->min + odd - gad->max;
4998
4999 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
5000 before returning, so do it here too. This guarantees that,
5001 should cur and fdcur meet at the wrap point, they'll both be
5002 equal to min. */
5003 if (gad->cur == gad->max)
5004 gad->cur = gad->min;
5005
5006 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
5007 gad->tcur = gad->max;
5008 if (gad->tcur == gad->tmax)
5009 gad->tcur = gad->tmin;
5010
5011 return odd;
5012 }
5013
5014 /* Compute the location of the next GOT entry, given the allocation
5015 data for a range. */
5016
5017 inline static bfd_signed_vma
5018 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5019 {
5020 bfd_signed_vma ret;
5021
5022 if (gad->odd)
5023 {
5024 /* If there was an odd word left behind, use it. */
5025 ret = gad->odd;
5026 gad->odd = 0;
5027 }
5028 else
5029 {
5030 /* Otherwise, use the word pointed to by cur, reserve the next
5031 as an odd word, and skip to the next pair of words, possibly
5032 wrapping around. */
5033 ret = gad->cur;
5034 gad->odd = gad->cur + 4;
5035 gad->cur += 8;
5036 if (gad->cur == gad->max)
5037 gad->cur = gad->min;
5038 }
5039
5040 return ret;
5041 }
5042
5043 /* Compute the location of the next function descriptor entry in the
5044 GOT, given the allocation data for a range. */
5045
5046 inline static bfd_signed_vma
5047 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5048 {
5049 /* If we're at the bottom, wrap around, and only then allocate the
5050 next pair of words. */
5051 if (gad->fdcur == gad->min)
5052 gad->fdcur = gad->max;
5053 return gad->fdcur -= 8;
5054 }
5055
5056 /* Compute the location of the next TLS descriptor entry in the GOT,
5057 given the allocation data for a range. */
5058 inline static bfd_signed_vma
5059 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5060 {
5061 bfd_signed_vma ret;
5062
5063 ret = gad->tcur;
5064
5065 gad->tcur += 8;
5066
5067 /* If we're at the top of the region, wrap around to the bottom. */
5068 if (gad->tcur == gad->tmax)
5069 gad->tcur = gad->tmin;
5070
5071 return ret;
5072 }
5073
5074 /* Assign GOT offsets for every GOT entry and function descriptor.
5075 Doing everything in a single pass is tricky. */
5076
5077 static int
5078 _frvfdpic_assign_got_entries (void **entryp, void *info_)
5079 {
5080 struct frvfdpic_relocs_info *entry = *entryp;
5081 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5082
5083 if (entry->got12)
5084 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5085 else if (entry->gotlos)
5086 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5087 else if (entry->gothilo)
5088 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5089
5090 if (entry->fdgot12)
5091 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5092 else if (entry->fdgotlos)
5093 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5094 else if (entry->fdgothilo)
5095 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5096
5097 if (entry->fdgoff12)
5098 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5099 else if (entry->plt && dinfo->got12.fdplt)
5100 {
5101 dinfo->got12.fdplt -= 8;
5102 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5103 }
5104 else if (entry->fdgofflos)
5105 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5106 else if (entry->plt && dinfo->gotlos.fdplt)
5107 {
5108 dinfo->gotlos.fdplt -= 8;
5109 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5110 }
5111 else if (entry->plt)
5112 {
5113 dinfo->gothilo.fdplt -= 8;
5114 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5115 }
5116 else if (entry->privfd)
5117 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5118
5119 if (entry->tlsoff12)
5120 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5121 else if (entry->tlsofflos)
5122 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5123 else if (entry->tlsoffhilo)
5124 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5125
5126 if (entry->tlsdesc12)
5127 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5128 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5129 {
5130 dinfo->got12.tlsdplt -= 8;
5131 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5132 }
5133 else if (entry->tlsdesclos)
5134 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5135 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5136 {
5137 dinfo->gotlos.tlsdplt -= 8;
5138 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5139 }
5140 else if (entry->tlsplt)
5141 {
5142 dinfo->gothilo.tlsdplt -= 8;
5143 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5144 }
5145 else if (entry->tlsdeschilo)
5146 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5147
5148 return 1;
5149 }
5150
5151 /* Assign GOT offsets to private function descriptors used by PLT
5152 entries (or referenced by 32-bit offsets), as well as PLT entries
5153 and lazy PLT entries. */
5154
5155 static int
5156 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5157 {
5158 struct frvfdpic_relocs_info *entry = *entryp;
5159 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5160
5161 if (entry->privfd)
5162 BFD_ASSERT (entry->fd_entry);
5163
5164 if (entry->plt)
5165 {
5166 int size;
5167
5168 /* We use the section's raw size to mark the location of the
5169 next PLT entry. */
5170 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5171
5172 /* Figure out the length of this PLT entry based on the
5173 addressing mode we need to reach the function descriptor. */
5174 BFD_ASSERT (entry->fd_entry);
5175 if (entry->fd_entry >= -(1 << (12 - 1))
5176 && entry->fd_entry < (1 << (12 - 1)))
5177 size = 8;
5178 else if (entry->fd_entry >= -(1 << (16 - 1))
5179 && entry->fd_entry < (1 << (16 - 1)))
5180 size = 12;
5181 else
5182 size = 16;
5183
5184 frvfdpic_plt_section (dinfo->g.info)->size += size;
5185 }
5186
5187 if (entry->lazyplt)
5188 {
5189 entry->lzplt_entry = dinfo->g.lzplt;
5190 dinfo->g.lzplt += 8;
5191 /* If this entry is the one that gets the resolver stub, account
5192 for the additional instruction. */
5193 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5194 == FRVFDPIC_LZPLT_RESOLV_LOC)
5195 dinfo->g.lzplt += 4;
5196 }
5197
5198 if (entry->tlsplt)
5199 {
5200 int size;
5201
5202 entry->tlsplt_entry
5203 = frvfdpic_plt_section (dinfo->g.info)->size;
5204
5205 if (dinfo->g.info->executable
5206 && (entry->symndx != -1
5207 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5208 {
5209 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5210 /* FIXME: here we use the size of the TLS section
5211 as an upper bound for the value of the TLS
5212 symbol, because we may not know the exact value
5213 yet. If we get it wrong, we'll just waste a
5214 word in the PLT, and we should never get even
5215 close to 32 KiB of TLS anyway. */
5216 && elf_hash_table (dinfo->g.info)->tls_sec
5217 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5218 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5219 size = 8;
5220 else
5221 size = 12;
5222 }
5223 else if (entry->tlsoff_entry)
5224 {
5225 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5226 && entry->tlsoff_entry < (1 << (12 - 1)))
5227 size = 8;
5228 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5229 && entry->tlsoff_entry < (1 << (16 - 1)))
5230 size = 12;
5231 else
5232 size = 16;
5233 }
5234 else
5235 {
5236 BFD_ASSERT (entry->tlsdesc_entry);
5237
5238 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5239 && entry->tlsdesc_entry < (1 << (12 - 1)))
5240 size = 8;
5241 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5242 && entry->tlsdesc_entry < (1 << (16 - 1)))
5243 size = 12;
5244 else
5245 size = 16;
5246 }
5247
5248 frvfdpic_plt_section (dinfo->g.info)->size += size;
5249 }
5250
5251 return 1;
5252 }
5253
5254 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5255 _frvfdpic_assign_plt_entries. */
5256
5257 static int
5258 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5259 {
5260 struct frvfdpic_relocs_info *entry = *entryp;
5261
5262 entry->got_entry = 0;
5263 entry->fdgot_entry = 0;
5264 entry->fd_entry = 0;
5265 entry->plt_entry = (bfd_vma)-1;
5266 entry->lzplt_entry = (bfd_vma)-1;
5267 entry->tlsoff_entry = 0;
5268 entry->tlsdesc_entry = 0;
5269 entry->tlsplt_entry = (bfd_vma)-1;
5270
5271 return 1;
5272 }
5273
5274 /* Follow indirect and warning hash entries so that each got entry
5275 points to the final symbol definition. P must point to a pointer
5276 to the hash table we're traversing. Since this traversal may
5277 modify the hash table, we set this pointer to NULL to indicate
5278 we've made a potentially-destructive change to the hash table, so
5279 the traversal must be restarted. */
5280 static int
5281 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5282 {
5283 struct frvfdpic_relocs_info *entry = *entryp;
5284 htab_t *htab = p;
5285
5286 if (entry->symndx == -1)
5287 {
5288 struct elf_link_hash_entry *h = entry->d.h;
5289 struct frvfdpic_relocs_info *oentry;
5290
5291 while (h->root.type == bfd_link_hash_indirect
5292 || h->root.type == bfd_link_hash_warning)
5293 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5294
5295 if (entry->d.h == h)
5296 return 1;
5297
5298 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5299 NO_INSERT);
5300
5301 if (oentry)
5302 {
5303 /* Merge the two entries. */
5304 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5305 htab_clear_slot (*htab, entryp);
5306 return 1;
5307 }
5308
5309 entry->d.h = h;
5310
5311 /* If we can't find this entry with the new bfd hash, re-insert
5312 it, and get the traversal restarted. */
5313 if (! htab_find (*htab, entry))
5314 {
5315 htab_clear_slot (*htab, entryp);
5316 entryp = htab_find_slot (*htab, entry, INSERT);
5317 if (! *entryp)
5318 *entryp = entry;
5319 /* Abort the traversal, since the whole table may have
5320 moved, and leave it up to the parent to restart the
5321 process. */
5322 *(htab_t *)p = NULL;
5323 return 0;
5324 }
5325 }
5326
5327 return 1;
5328 }
5329
5330 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5331 section and the rofixup section. Assign locations for GOT and PLT
5332 entries. */
5333
5334 static bfd_boolean
5335 _frvfdpic_size_got_plt (bfd *output_bfd,
5336 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5337 {
5338 bfd_signed_vma odd;
5339 bfd_vma limit, tlslimit;
5340 struct bfd_link_info *info = gpinfop->g.info;
5341 bfd *dynobj = elf_hash_table (info)->dynobj;
5342
5343 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5344 sizeof (gpinfop->g));
5345
5346 odd = 12;
5347 /* Compute the total size taken by entries in the 12-bit and 16-bit
5348 ranges, to tell how many PLT function descriptors we can bring
5349 into the 12-bit range without causing the 16-bit range to
5350 overflow. */
5351 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5352 + gpinfop->g.fd12 + gpinfop->g.fdlos
5353 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5354 if (limit < (bfd_vma)1 << 16)
5355 limit = ((bfd_vma)1 << 16) - limit;
5356 else
5357 limit = 0;
5358 if (gpinfop->g.fdplt < limit)
5359 {
5360 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5361 limit = gpinfop->g.fdplt;
5362 }
5363 else
5364 tlslimit = 0;
5365 if (gpinfop->g.tlsdplt < tlslimit)
5366 tlslimit = gpinfop->g.tlsdplt;
5367
5368 /* Determine the ranges of GOT offsets that we can use for each
5369 range of addressing modes. */
5370 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5371 0,
5372 odd,
5373 16,
5374 gpinfop->g.got12,
5375 gpinfop->g.fd12,
5376 limit,
5377 gpinfop->g.tlsd12,
5378 tlslimit,
5379 (bfd_vma)1 << (12-1));
5380 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5381 gpinfop->got12.tmin,
5382 odd,
5383 gpinfop->got12.tmax,
5384 gpinfop->g.gotlos,
5385 gpinfop->g.fdlos,
5386 gpinfop->g.fdplt
5387 - gpinfop->got12.fdplt,
5388 gpinfop->g.tlsdlos,
5389 gpinfop->g.tlsdplt
5390 - gpinfop->got12.tlsdplt,
5391 (bfd_vma)1 << (16-1));
5392 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5393 gpinfop->gotlos.tmin,
5394 odd,
5395 gpinfop->gotlos.tmax,
5396 gpinfop->g.gothilo,
5397 gpinfop->g.fdhilo,
5398 gpinfop->g.fdplt
5399 - gpinfop->got12.fdplt
5400 - gpinfop->gotlos.fdplt,
5401 gpinfop->g.tlsdhilo,
5402 gpinfop->g.tlsdplt
5403 - gpinfop->got12.tlsdplt
5404 - gpinfop->gotlos.tlsdplt,
5405 (bfd_vma)1 << (32-1));
5406
5407 /* Now assign (most) GOT offsets. */
5408 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5409 gpinfop);
5410
5411 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5412 - gpinfop->gothilo.tmin
5413 /* If an odd word is the last word of the GOT, we don't need this
5414 word to be part of the GOT. */
5415 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5416 if (frvfdpic_got_section (info)->size == 0)
5417 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5418 else if (frvfdpic_got_section (info)->size == 12
5419 && ! elf_hash_table (info)->dynamic_sections_created)
5420 {
5421 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5422 frvfdpic_got_section (info)->size = 0;
5423 }
5424 /* This will be non-NULL during relaxation. The assumption is that
5425 the size of one of these sections will never grow, only shrink,
5426 so we can use the larger buffer we allocated before. */
5427 else if (frvfdpic_got_section (info)->contents == NULL)
5428 {
5429 frvfdpic_got_section (info)->contents =
5430 (bfd_byte *) bfd_zalloc (dynobj,
5431 frvfdpic_got_section (info)->size);
5432 if (frvfdpic_got_section (info)->contents == NULL)
5433 return FALSE;
5434 }
5435
5436 if (frvfdpic_gotrel_section (info))
5437 /* Subtract the number of lzplt entries, since those will generate
5438 relocations in the pltrel section. */
5439 frvfdpic_gotrel_section (info)->size =
5440 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5441 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5442 else
5443 BFD_ASSERT (gpinfop->g.relocs == 0);
5444 if (frvfdpic_gotrel_section (info)->size == 0)
5445 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5446 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5447 {
5448 frvfdpic_gotrel_section (info)->contents =
5449 (bfd_byte *) bfd_zalloc (dynobj,
5450 frvfdpic_gotrel_section (info)->size);
5451 if (frvfdpic_gotrel_section (info)->contents == NULL)
5452 return FALSE;
5453 }
5454
5455 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5456 if (frvfdpic_gotfixup_section (info)->size == 0)
5457 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5458 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5459 {
5460 frvfdpic_gotfixup_section (info)->contents =
5461 (bfd_byte *) bfd_zalloc (dynobj,
5462 frvfdpic_gotfixup_section (info)->size);
5463 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5464 return FALSE;
5465 }
5466
5467 if (frvfdpic_pltrel_section (info))
5468 {
5469 frvfdpic_pltrel_section (info)->size =
5470 gpinfop->g.lzplt / 8
5471 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5472 if (frvfdpic_pltrel_section (info)->size == 0)
5473 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5474 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5475 {
5476 frvfdpic_pltrel_section (info)->contents =
5477 (bfd_byte *) bfd_zalloc (dynobj,
5478 frvfdpic_pltrel_section (info)->size);
5479 if (frvfdpic_pltrel_section (info)->contents == NULL)
5480 return FALSE;
5481 }
5482 }
5483
5484 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5485 such that there's room for the additional instruction needed to
5486 call the resolver. Since _frvfdpic_assign_got_entries didn't
5487 account for them, our block size is 4 bytes smaller than the real
5488 block size. */
5489 if (frvfdpic_plt_section (info))
5490 {
5491 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5492 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5493 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5494 }
5495
5496 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5497 actually assign lazy PLT entries addresses. */
5498 gpinfop->g.lzplt = 0;
5499
5500 /* Save information that we're going to need to generate GOT and PLT
5501 entries. */
5502 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5503
5504 if (get_elf_backend_data (output_bfd)->want_got_sym)
5505 elf_hash_table (info)->hgot->root.u.def.value
5506 = frvfdpic_got_initial_offset (info);
5507
5508 if (frvfdpic_plt_section (info))
5509 frvfdpic_plt_initial_offset (info) =
5510 frvfdpic_plt_section (info)->size;
5511
5512 /* Allocate a ret statement at plt_initial_offset, to be used by
5513 locally-resolved TLS descriptors. */
5514 if (gpinfop->g.tls_ret_refs)
5515 frvfdpic_plt_section (info)->size += 4;
5516
5517 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5518 gpinfop);
5519
5520 /* Allocate the PLT section contents only after
5521 _frvfdpic_assign_plt_entries has a chance to add the size of the
5522 non-lazy PLT entries. */
5523 if (frvfdpic_plt_section (info))
5524 {
5525 if (frvfdpic_plt_section (info)->size == 0)
5526 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5527 else if (frvfdpic_plt_section (info)->contents == NULL)
5528 {
5529 frvfdpic_plt_section (info)->contents =
5530 (bfd_byte *) bfd_zalloc (dynobj,
5531 frvfdpic_plt_section (info)->size);
5532 if (frvfdpic_plt_section (info)->contents == NULL)
5533 return FALSE;
5534 }
5535 }
5536
5537 return TRUE;
5538 }
5539
5540 /* Set the sizes of the dynamic sections. */
5541
5542 static bfd_boolean
5543 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5544 struct bfd_link_info *info)
5545 {
5546 bfd *dynobj;
5547 asection *s;
5548 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5549
5550 dynobj = elf_hash_table (info)->dynobj;
5551 BFD_ASSERT (dynobj != NULL);
5552
5553 if (elf_hash_table (info)->dynamic_sections_created)
5554 {
5555 /* Set the contents of the .interp section to the interpreter. */
5556 if (info->executable)
5557 {
5558 s = bfd_get_section_by_name (dynobj, ".interp");
5559 BFD_ASSERT (s != NULL);
5560 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5561 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5562 }
5563 }
5564
5565 memset (&gpinfo, 0, sizeof (gpinfo));
5566 gpinfo.g.info = info;
5567
5568 for (;;)
5569 {
5570 htab_t relocs = frvfdpic_relocs_info (info);
5571
5572 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5573
5574 if (relocs == frvfdpic_relocs_info (info))
5575 break;
5576 }
5577
5578 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5579 &gpinfo.g);
5580
5581 /* Allocate space to save the summary information, we're going to
5582 use it if we're doing relaxations. */
5583 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5584
5585 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5586 return FALSE;
5587
5588 if (elf_hash_table (info)->dynamic_sections_created)
5589 {
5590 if (frvfdpic_got_section (info)->size)
5591 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5592 return FALSE;
5593
5594 if (frvfdpic_pltrel_section (info)->size)
5595 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5596 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5597 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5598 return FALSE;
5599
5600 if (frvfdpic_gotrel_section (info)->size)
5601 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5602 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5603 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5604 sizeof (Elf32_External_Rel)))
5605 return FALSE;
5606 }
5607
5608 return TRUE;
5609 }
5610
5611 static bfd_boolean
5612 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5613 struct bfd_link_info *info)
5614 {
5615 if (!info->relocatable)
5616 {
5617 struct elf_link_hash_entry *h;
5618 asection *sec;
5619
5620 /* Force a PT_GNU_STACK segment to be created. */
5621 if (! elf_tdata (output_bfd)->stack_flags)
5622 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
5623
5624 /* Define __stacksize if it's not defined yet. */
5625 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5626 FALSE, FALSE, FALSE);
5627 if (! h || h->root.type != bfd_link_hash_defined
5628 || h->type != STT_OBJECT
5629 || !h->def_regular)
5630 {
5631 struct bfd_link_hash_entry *bh = NULL;
5632
5633 if (!(_bfd_generic_link_add_one_symbol
5634 (info, output_bfd, "__stacksize",
5635 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
5636 (const char *) NULL, FALSE,
5637 get_elf_backend_data (output_bfd)->collect, &bh)))
5638 return FALSE;
5639
5640 h = (struct elf_link_hash_entry *) bh;
5641 h->def_regular = 1;
5642 h->type = STT_OBJECT;
5643 /* This one must NOT be hidden. */
5644 }
5645
5646 /* Create a stack section, and set its alignment. */
5647 sec = bfd_make_section (output_bfd, ".stack");
5648
5649 if (sec == NULL
5650 || ! bfd_set_section_alignment (output_bfd, sec, 3))
5651 return FALSE;
5652 }
5653
5654 return TRUE;
5655 }
5656
5657 /* Look for opportunities to relax TLS relocations. We can assume
5658 we're linking the main executable or a static-tls library, since
5659 otherwise we wouldn't have got here. */
5660
5661 static int
5662 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5663 {
5664 struct frvfdpic_relocs_info *entry = *entryp;
5665 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5666
5667 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5668
5669 return 1;
5670 }
5671
5672 static bfd_boolean
5673 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5674 struct bfd_link_info *info, bfd_boolean *again)
5675 {
5676 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5677
5678 /* If we return early, we didn't change anything. */
5679 *again = FALSE;
5680
5681 /* We'll do our thing when requested to relax the GOT section. */
5682 if (sec != frvfdpic_got_section (info))
5683 return TRUE;
5684
5685 /* We can only relax when linking the main executable or a library
5686 that can't be dlopened. */
5687 if (! info->executable && ! (info->flags & DF_STATIC_TLS))
5688 return TRUE;
5689
5690 /* If there isn't a TLS section for this binary, we can't do
5691 anything about its TLS relocations (it probably doesn't have
5692 any. */
5693 if (elf_hash_table (info)->tls_sec == NULL)
5694 return TRUE;
5695
5696 memset (&gpinfo, 0, sizeof (gpinfo));
5697 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5698
5699 /* Now look for opportunities to relax, adjusting the GOT usage
5700 as needed. */
5701 htab_traverse (frvfdpic_relocs_info (info),
5702 _frvfdpic_relax_got_plt_entries,
5703 &gpinfo.g);
5704
5705 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5706 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5707 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5708 {
5709 /* Clear GOT and PLT assignments. */
5710 htab_traverse (frvfdpic_relocs_info (info),
5711 _frvfdpic_reset_got_plt_entries,
5712 NULL);
5713
5714 /* The owner of the TLS section is the output bfd. There should
5715 be a better way to get to it. */
5716 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5717 &gpinfo))
5718 return FALSE;
5719
5720 /* Repeat until we don't make any further changes. We could fail to
5721 introduce changes in a round if, for example, the 12-bit range is
5722 full, but we later release some space by getting rid of TLS
5723 descriptors in it. We have to repeat the whole process because
5724 we might have changed the size of a section processed before this
5725 one. */
5726 *again = TRUE;
5727 }
5728
5729 return TRUE;
5730 }
5731
5732 static bfd_boolean
5733 elf32_frvfdpic_modify_segment_map (bfd *output_bfd,
5734 struct bfd_link_info *info)
5735 {
5736 struct elf_segment_map *m;
5737
5738 /* objcopy and strip preserve what's already there using
5739 elf32_frvfdpic_copy_private_bfd_data (). */
5740 if (! info)
5741 return TRUE;
5742
5743 for (m = elf_tdata (output_bfd)->segment_map; m != NULL; m = m->next)
5744 if (m->p_type == PT_GNU_STACK)
5745 break;
5746
5747 if (m)
5748 {
5749 asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
5750 struct elf_link_hash_entry *h;
5751
5752 if (sec)
5753 {
5754 /* Obtain the pointer to the __stacksize symbol. */
5755 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5756 FALSE, FALSE, FALSE);
5757 while (h->root.type == bfd_link_hash_indirect
5758 || h->root.type == bfd_link_hash_warning)
5759 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5760 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
5761
5762 /* Set the section size from the symbol value. We
5763 intentionally ignore the symbol section. */
5764 if (h->root.type == bfd_link_hash_defined)
5765 sec->size = h->root.u.def.value;
5766 else
5767 sec->size = DEFAULT_STACK_SIZE;
5768
5769 /* Add the stack section to the PT_GNU_STACK segment,
5770 such that its size and alignment requirements make it
5771 to the segment. */
5772 m->sections[m->count] = sec;
5773 m->count++;
5774 }
5775 }
5776
5777 return TRUE;
5778 }
5779
5780 /* Fill in code and data in dynamic sections. */
5781
5782 static bfd_boolean
5783 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5784 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5785 {
5786 /* Nothing to be done for non-FDPIC. */
5787 return TRUE;
5788 }
5789
5790 static bfd_boolean
5791 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5792 struct bfd_link_info *info)
5793 {
5794 bfd *dynobj;
5795 asection *sdyn;
5796
5797 dynobj = elf_hash_table (info)->dynobj;
5798
5799 if (frvfdpic_dynamic_got_plt_info (info))
5800 {
5801 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5802 }
5803 if (frvfdpic_got_section (info))
5804 {
5805 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5806 == (frvfdpic_gotrel_section (info)->reloc_count
5807 * sizeof (Elf32_External_Rel)));
5808
5809 if (frvfdpic_gotfixup_section (info))
5810 {
5811 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5812 bfd_vma got_value = hgot->root.u.def.value
5813 + hgot->root.u.def.section->output_section->vma
5814 + hgot->root.u.def.section->output_offset;
5815 struct bfd_link_hash_entry *hend;
5816
5817 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5818 got_value, 0);
5819
5820 if (frvfdpic_gotfixup_section (info)->size
5821 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5822 {
5823 error:
5824 (*_bfd_error_handler)
5825 ("LINKER BUG: .rofixup section size mismatch");
5826 return FALSE;
5827 }
5828
5829 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5830 FALSE, FALSE, TRUE);
5831 if (hend
5832 && (hend->type == bfd_link_hash_defined
5833 || hend->type == bfd_link_hash_defweak))
5834 {
5835 bfd_vma value =
5836 frvfdpic_gotfixup_section (info)->output_section->vma
5837 + frvfdpic_gotfixup_section (info)->output_offset
5838 + frvfdpic_gotfixup_section (info)->size
5839 - hend->u.def.section->output_section->vma
5840 - hend->u.def.section->output_offset;
5841 BFD_ASSERT (hend->u.def.value == value);
5842 if (hend->u.def.value != value)
5843 goto error;
5844 }
5845 }
5846 }
5847 if (frvfdpic_pltrel_section (info))
5848 {
5849 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5850 == (frvfdpic_pltrel_section (info)->reloc_count
5851 * sizeof (Elf32_External_Rel)));
5852 }
5853
5854
5855 if (elf_hash_table (info)->dynamic_sections_created)
5856 {
5857 Elf32_External_Dyn * dyncon;
5858 Elf32_External_Dyn * dynconend;
5859
5860 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5861
5862 BFD_ASSERT (sdyn != NULL);
5863
5864 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5865 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5866
5867 for (; dyncon < dynconend; dyncon++)
5868 {
5869 Elf_Internal_Dyn dyn;
5870
5871 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5872
5873 switch (dyn.d_tag)
5874 {
5875 default:
5876 break;
5877
5878 case DT_PLTGOT:
5879 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5880 + frvfdpic_got_section (info)->output_offset
5881 + frvfdpic_got_initial_offset (info);
5882 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5883 break;
5884
5885 case DT_JMPREL:
5886 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5887 ->output_section->vma
5888 + frvfdpic_pltrel_section (info)->output_offset;
5889 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5890 break;
5891
5892 case DT_PLTRELSZ:
5893 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5894 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5895 break;
5896 }
5897 }
5898 }
5899
5900 return TRUE;
5901 }
5902
5903 /* Adjust a symbol defined by a dynamic object and referenced by a
5904 regular object. */
5905
5906 static bfd_boolean
5907 elf32_frvfdpic_adjust_dynamic_symbol
5908 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5909 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5910 {
5911 bfd * dynobj;
5912
5913 dynobj = elf_hash_table (info)->dynobj;
5914
5915 /* Make sure we know what is going on here. */
5916 BFD_ASSERT (dynobj != NULL
5917 && (h->u.weakdef != NULL
5918 || (h->def_dynamic
5919 && h->ref_regular
5920 && !h->def_regular)));
5921
5922 /* If this is a weak symbol, and there is a real definition, the
5923 processor independent code will have arranged for us to see the
5924 real definition first, and we can just use the same value. */
5925 if (h->u.weakdef != NULL)
5926 {
5927 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5928 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5929 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5930 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5931 }
5932
5933 return TRUE;
5934 }
5935
5936 /* Perform any actions needed for dynamic symbols. */
5937
5938 static bfd_boolean
5939 elf32_frvfdpic_finish_dynamic_symbol
5940 (bfd *output_bfd ATTRIBUTE_UNUSED,
5941 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5942 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5943 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5944 {
5945 return TRUE;
5946 }
5947
5948 /* Decide whether to attempt to turn absptr or lsda encodings in
5949 shared libraries into pcrel within the given input section. */
5950
5951 static bfd_boolean
5952 frvfdpic_elf_use_relative_eh_frame
5953 (bfd *input_bfd ATTRIBUTE_UNUSED,
5954 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5955 asection *eh_frame_section ATTRIBUTE_UNUSED)
5956 {
5957 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
5958 return FALSE;
5959 }
5960
5961 /* Adjust the contents of an eh_frame_hdr section before they're output. */
5962
5963 static bfd_byte
5964 frvfdpic_elf_encode_eh_address (bfd *abfd,
5965 struct bfd_link_info *info,
5966 asection *osec, bfd_vma offset,
5967 asection *loc_sec, bfd_vma loc_offset,
5968 bfd_vma *encoded)
5969 {
5970 struct elf_link_hash_entry *h;
5971
5972 h = elf_hash_table (info)->hgot;
5973 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
5974
5975 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
5976 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
5977 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
5978 loc_sec, loc_offset, encoded);
5979
5980 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
5981 == (_frvfdpic_osec_to_segment
5982 (abfd, h->root.u.def.section->output_section)));
5983
5984 *encoded = osec->vma + offset
5985 - (h->root.u.def.value
5986 + h->root.u.def.section->output_section->vma
5987 + h->root.u.def.section->output_offset);
5988
5989 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
5990 }
5991
5992 /* Look through the relocs for a section during the first phase.
5993
5994 Besides handling virtual table relocs for gc, we have to deal with
5995 all sorts of PIC-related relocations. We describe below the
5996 general plan on how to handle such relocations, even though we only
5997 collect information at this point, storing them in hash tables for
5998 perusal of later passes.
5999
6000 32 relocations are propagated to the linker output when creating
6001 position-independent output. LO16 and HI16 relocations are not
6002 supposed to be encountered in this case.
6003
6004 LABEL16 should always be resolvable by the linker, since it's only
6005 used by branches.
6006
6007 LABEL24, on the other hand, is used by calls. If it turns out that
6008 the target of a call is a dynamic symbol, a PLT entry must be
6009 created for it, which triggers the creation of a private function
6010 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
6011
6012 GPREL relocations require the referenced symbol to be in the same
6013 segment as _gp, but this can only be checked later.
6014
6015 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
6016 exist. LABEL24 might as well, since it may require a PLT entry,
6017 that will require a got.
6018
6019 Non-FUNCDESC GOT relocations require a GOT entry to be created
6020 regardless of whether the symbol is dynamic. However, since a
6021 global symbol that turns out to not be exported may have the same
6022 address of a non-dynamic symbol, we don't assign GOT entries at
6023 this point, such that we can share them in this case. A relocation
6024 for the GOT entry always has to be created, be it to offset a
6025 private symbol by the section load address, be it to get the symbol
6026 resolved dynamically.
6027
6028 FUNCDESC GOT relocations require a GOT entry to be created, and
6029 handled as if a FUNCDESC relocation was applied to the GOT entry in
6030 an object file.
6031
6032 FUNCDESC relocations referencing a symbol that turns out to NOT be
6033 dynamic cause a private function descriptor to be created. The
6034 FUNCDESC relocation then decays to a 32 relocation that points at
6035 the private descriptor. If the symbol is dynamic, the FUNCDESC
6036 relocation is propagated to the linker output, such that the
6037 dynamic linker creates the canonical descriptor, pointing to the
6038 dynamically-resolved definition of the function.
6039
6040 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
6041 symbols that are assigned to the same segment as the GOT, but we
6042 can only check this later, after we know the complete set of
6043 symbols defined and/or exported.
6044
6045 FUNCDESC GOTOFF relocations require a function descriptor to be
6046 created and, unless lazy binding is disabled or the symbol is not
6047 dynamic, a lazy PLT entry. Since we can't tell at this point
6048 whether a symbol is going to be dynamic, we have to decide later
6049 whether to create a lazy PLT entry or bind the descriptor directly
6050 to the private function.
6051
6052 FUNCDESC_VALUE relocations are not supposed to be present in object
6053 files, but they may very well be simply propagated to the linker
6054 output, since they have no side effect.
6055
6056
6057 A function descriptor always requires a FUNCDESC_VALUE relocation.
6058 Whether it's in .plt.rel or not depends on whether lazy binding is
6059 enabled and on whether the referenced symbol is dynamic.
6060
6061 The existence of a lazy PLT requires the resolverStub lazy PLT
6062 entry to be present.
6063
6064
6065 As for assignment of GOT, PLT and lazy PLT entries, and private
6066 descriptors, we might do them all sequentially, but we can do
6067 better than that. For example, we can place GOT entries and
6068 private function descriptors referenced using 12-bit operands
6069 closer to the PIC register value, such that these relocations don't
6070 overflow. Those that are only referenced with LO16 relocations
6071 could come next, but we may as well place PLT-required function
6072 descriptors in the 12-bit range to make them shorter. Symbols
6073 referenced with LO16/HI16 may come next, but we may place
6074 additional function descriptors in the 16-bit range if we can
6075 reliably tell that we've already placed entries that are ever
6076 referenced with only LO16. PLT entries are therefore generated as
6077 small as possible, while not introducing relocation overflows in
6078 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
6079 generated before or after PLT entries, but not intermingled with
6080 them, such that we can have more lazy PLT entries in range for a
6081 branch to the resolverStub. The resolverStub should be emitted at
6082 the most distant location from the first lazy PLT entry such that
6083 it's still in range for a branch, or closer, if there isn't a need
6084 for so many lazy PLT entries. Additional lazy PLT entries may be
6085 emitted after the resolverStub, as long as branches are still in
6086 range. If the branch goes out of range, longer lazy PLT entries
6087 are emitted.
6088
6089 We could further optimize PLT and lazy PLT entries by giving them
6090 priority in assignment to closer-to-gr17 locations depending on the
6091 number of occurrences of references to them (assuming a function
6092 that's called more often is more important for performance, so its
6093 PLT entry should be faster), or taking hints from the compiler.
6094 Given infinite time and money... :-) */
6095
6096 static bfd_boolean
6097 elf32_frv_check_relocs (abfd, info, sec, relocs)
6098 bfd *abfd;
6099 struct bfd_link_info *info;
6100 asection *sec;
6101 const Elf_Internal_Rela *relocs;
6102 {
6103 Elf_Internal_Shdr *symtab_hdr;
6104 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
6105 const Elf_Internal_Rela *rel;
6106 const Elf_Internal_Rela *rel_end;
6107 bfd *dynobj;
6108 struct frvfdpic_relocs_info *picrel;
6109
6110 if (info->relocatable)
6111 return TRUE;
6112
6113 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6114 sym_hashes = elf_sym_hashes (abfd);
6115 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
6116 if (!elf_bad_symtab (abfd))
6117 sym_hashes_end -= symtab_hdr->sh_info;
6118
6119 dynobj = elf_hash_table (info)->dynobj;
6120 rel_end = relocs + sec->reloc_count;
6121 for (rel = relocs; rel < rel_end; rel++)
6122 {
6123 struct elf_link_hash_entry *h;
6124 unsigned long r_symndx;
6125
6126 r_symndx = ELF32_R_SYM (rel->r_info);
6127 if (r_symndx < symtab_hdr->sh_info)
6128 h = NULL;
6129 else
6130 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6131
6132 switch (ELF32_R_TYPE (rel->r_info))
6133 {
6134 case R_FRV_GETTLSOFF:
6135 case R_FRV_TLSDESC_VALUE:
6136 case R_FRV_GOTTLSDESC12:
6137 case R_FRV_GOTTLSDESCHI:
6138 case R_FRV_GOTTLSDESCLO:
6139 case R_FRV_GOTTLSOFF12:
6140 case R_FRV_GOTTLSOFFHI:
6141 case R_FRV_GOTTLSOFFLO:
6142 case R_FRV_TLSOFF:
6143 case R_FRV_GOT12:
6144 case R_FRV_GOTHI:
6145 case R_FRV_GOTLO:
6146 case R_FRV_FUNCDESC_GOT12:
6147 case R_FRV_FUNCDESC_GOTHI:
6148 case R_FRV_FUNCDESC_GOTLO:
6149 case R_FRV_GOTOFF12:
6150 case R_FRV_GOTOFFHI:
6151 case R_FRV_GOTOFFLO:
6152 case R_FRV_FUNCDESC_GOTOFF12:
6153 case R_FRV_FUNCDESC_GOTOFFHI:
6154 case R_FRV_FUNCDESC_GOTOFFLO:
6155 case R_FRV_FUNCDESC:
6156 case R_FRV_FUNCDESC_VALUE:
6157 case R_FRV_TLSMOFF12:
6158 case R_FRV_TLSMOFFHI:
6159 case R_FRV_TLSMOFFLO:
6160 case R_FRV_TLSMOFF:
6161 if (! IS_FDPIC (abfd))
6162 goto bad_reloc;
6163 /* Fall through. */
6164 case R_FRV_GPREL12:
6165 case R_FRV_GPRELU12:
6166 case R_FRV_GPRELHI:
6167 case R_FRV_GPRELLO:
6168 case R_FRV_LABEL24:
6169 case R_FRV_32:
6170 if (! dynobj)
6171 {
6172 elf_hash_table (info)->dynobj = dynobj = abfd;
6173 if (! _frv_create_got_section (abfd, info))
6174 return FALSE;
6175 }
6176 if (! IS_FDPIC (abfd))
6177 {
6178 picrel = NULL;
6179 break;
6180 }
6181 if (h != NULL)
6182 {
6183 if (h->dynindx == -1)
6184 switch (ELF_ST_VISIBILITY (h->other))
6185 {
6186 case STV_INTERNAL:
6187 case STV_HIDDEN:
6188 break;
6189 default:
6190 bfd_elf_link_record_dynamic_symbol (info, h);
6191 break;
6192 }
6193 picrel
6194 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6195 abfd, h,
6196 rel->r_addend, INSERT);
6197 }
6198 else
6199 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6200 (info), abfd, r_symndx,
6201 rel->r_addend, INSERT);
6202 if (! picrel)
6203 return FALSE;
6204 break;
6205
6206 default:
6207 picrel = NULL;
6208 break;
6209 }
6210
6211 switch (ELF32_R_TYPE (rel->r_info))
6212 {
6213 case R_FRV_LABEL24:
6214 if (IS_FDPIC (abfd))
6215 picrel->call = 1;
6216 break;
6217
6218 case R_FRV_FUNCDESC_VALUE:
6219 picrel->relocsfdv++;
6220 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6221 picrel->relocs32--;
6222 /* Fall through. */
6223
6224 case R_FRV_32:
6225 if (! IS_FDPIC (abfd))
6226 break;
6227
6228 picrel->sym = 1;
6229 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6230 picrel->relocs32++;
6231 break;
6232
6233 case R_FRV_GOT12:
6234 picrel->got12 = 1;
6235 break;
6236
6237 case R_FRV_GOTHI:
6238 case R_FRV_GOTLO:
6239 picrel->gothilo = 1;
6240 break;
6241
6242 case R_FRV_FUNCDESC_GOT12:
6243 picrel->fdgot12 = 1;
6244 break;
6245
6246 case R_FRV_FUNCDESC_GOTHI:
6247 case R_FRV_FUNCDESC_GOTLO:
6248 picrel->fdgothilo = 1;
6249 break;
6250
6251 case R_FRV_GOTOFF12:
6252 case R_FRV_GOTOFFHI:
6253 case R_FRV_GOTOFFLO:
6254 picrel->gotoff = 1;
6255 break;
6256
6257 case R_FRV_FUNCDESC_GOTOFF12:
6258 picrel->fdgoff12 = 1;
6259 break;
6260
6261 case R_FRV_FUNCDESC_GOTOFFHI:
6262 case R_FRV_FUNCDESC_GOTOFFLO:
6263 picrel->fdgoffhilo = 1;
6264 break;
6265
6266 case R_FRV_FUNCDESC:
6267 picrel->fd = 1;
6268 picrel->relocsfd++;
6269 break;
6270
6271 case R_FRV_GETTLSOFF:
6272 picrel->tlsplt = 1;
6273 break;
6274
6275 case R_FRV_TLSDESC_VALUE:
6276 picrel->relocstlsd++;
6277 goto bad_reloc;
6278
6279 case R_FRV_GOTTLSDESC12:
6280 picrel->tlsdesc12 = 1;
6281 break;
6282
6283 case R_FRV_GOTTLSDESCHI:
6284 case R_FRV_GOTTLSDESCLO:
6285 picrel->tlsdeschilo = 1;
6286 break;
6287
6288 case R_FRV_TLSMOFF12:
6289 case R_FRV_TLSMOFFHI:
6290 case R_FRV_TLSMOFFLO:
6291 case R_FRV_TLSMOFF:
6292 break;
6293
6294 case R_FRV_GOTTLSOFF12:
6295 picrel->tlsoff12 = 1;
6296 info->flags |= DF_STATIC_TLS;
6297 break;
6298
6299 case R_FRV_GOTTLSOFFHI:
6300 case R_FRV_GOTTLSOFFLO:
6301 picrel->tlsoffhilo = 1;
6302 info->flags |= DF_STATIC_TLS;
6303 break;
6304
6305 case R_FRV_TLSOFF:
6306 picrel->relocstlsoff++;
6307 info->flags |= DF_STATIC_TLS;
6308 goto bad_reloc;
6309
6310 /* This relocation describes the C++ object vtable hierarchy.
6311 Reconstruct it for later use during GC. */
6312 case R_FRV_GNU_VTINHERIT:
6313 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6314 return FALSE;
6315 break;
6316
6317 /* This relocation describes which C++ vtable entries are actually
6318 used. Record for later use during GC. */
6319 case R_FRV_GNU_VTENTRY:
6320 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6321 return FALSE;
6322 break;
6323
6324 case R_FRV_LABEL16:
6325 case R_FRV_LO16:
6326 case R_FRV_HI16:
6327 case R_FRV_GPREL12:
6328 case R_FRV_GPRELU12:
6329 case R_FRV_GPREL32:
6330 case R_FRV_GPRELHI:
6331 case R_FRV_GPRELLO:
6332 case R_FRV_TLSDESC_RELAX:
6333 case R_FRV_GETTLSOFF_RELAX:
6334 case R_FRV_TLSOFF_RELAX:
6335 break;
6336
6337 default:
6338 bad_reloc:
6339 (*_bfd_error_handler)
6340 (_("%B: unsupported relocation type %i"),
6341 abfd, ELF32_R_TYPE (rel->r_info));
6342 return FALSE;
6343 }
6344 }
6345
6346 return TRUE;
6347 }
6348
6349 \f
6350 /* Return the machine subcode from the ELF e_flags header. */
6351
6352 static int
6353 elf32_frv_machine (abfd)
6354 bfd *abfd;
6355 {
6356 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6357 {
6358 default: break;
6359 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6360 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6361 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6362 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6363 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6364 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6365 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6366 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6367 }
6368
6369 return bfd_mach_frv;
6370 }
6371
6372 /* Set the right machine number for a FRV ELF file. */
6373
6374 static bfd_boolean
6375 elf32_frv_object_p (abfd)
6376 bfd *abfd;
6377 {
6378 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6379 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6380 == (IS_FDPIC (abfd)));
6381 }
6382 \f
6383 /* Function to set the ELF flag bits. */
6384
6385 static bfd_boolean
6386 frv_elf_set_private_flags (abfd, flags)
6387 bfd *abfd;
6388 flagword flags;
6389 {
6390 elf_elfheader (abfd)->e_flags = flags;
6391 elf_flags_init (abfd) = TRUE;
6392 return TRUE;
6393 }
6394
6395 /* Copy backend specific data from one object module to another. */
6396
6397 static bfd_boolean
6398 frv_elf_copy_private_bfd_data (ibfd, obfd)
6399 bfd *ibfd;
6400 bfd *obfd;
6401 {
6402 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6403 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6404 return TRUE;
6405
6406 BFD_ASSERT (!elf_flags_init (obfd)
6407 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
6408
6409 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6410 elf_flags_init (obfd) = TRUE;
6411 return TRUE;
6412 }
6413
6414 /* Return true if the architecture described by elf header flag
6415 EXTENSION is an extension of the architecture described by BASE. */
6416
6417 static bfd_boolean
6418 frv_elf_arch_extension_p (flagword base, flagword extension)
6419 {
6420 if (base == extension)
6421 return TRUE;
6422
6423 /* CPU_GENERIC code can be merged with code for a specific
6424 architecture, in which case the result is marked as being
6425 for the specific architecture. Everything is therefore
6426 an extension of CPU_GENERIC. */
6427 if (base == EF_FRV_CPU_GENERIC)
6428 return TRUE;
6429
6430 if (extension == EF_FRV_CPU_FR450)
6431 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6432 return TRUE;
6433
6434 if (extension == EF_FRV_CPU_FR405)
6435 if (base == EF_FRV_CPU_FR400)
6436 return TRUE;
6437
6438 return FALSE;
6439 }
6440
6441 static bfd_boolean
6442 elf32_frvfdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
6443 {
6444 unsigned i;
6445
6446 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6447 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6448 return TRUE;
6449
6450 if (! frv_elf_copy_private_bfd_data (ibfd, obfd))
6451 return FALSE;
6452
6453 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
6454 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
6455 return TRUE;
6456
6457 /* Copy the stack size. */
6458 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
6459 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
6460 {
6461 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
6462
6463 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
6464 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
6465 {
6466 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
6467
6468 /* Rewrite the phdrs, since we're only called after they
6469 were first written. */
6470 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
6471 ->s->sizeof_ehdr, SEEK_SET) != 0
6472 || get_elf_backend_data (obfd)->s
6473 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
6474 elf_elfheader (obfd)->e_phnum) != 0)
6475 return FALSE;
6476 break;
6477 }
6478
6479 break;
6480 }
6481
6482 return TRUE;
6483 }
6484
6485 /* Merge backend specific data from an object file to the output
6486 object file when linking. */
6487
6488 static bfd_boolean
6489 frv_elf_merge_private_bfd_data (ibfd, obfd)
6490 bfd *ibfd;
6491 bfd *obfd;
6492 {
6493 flagword old_flags, old_partial;
6494 flagword new_flags, new_partial;
6495 bfd_boolean error = FALSE;
6496 char new_opt[80];
6497 char old_opt[80];
6498
6499 new_opt[0] = old_opt[0] = '\0';
6500 new_flags = elf_elfheader (ibfd)->e_flags;
6501 old_flags = elf_elfheader (obfd)->e_flags;
6502
6503 if (new_flags & EF_FRV_FDPIC)
6504 new_flags &= ~EF_FRV_PIC;
6505
6506 #ifdef DEBUG
6507 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6508 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6509 bfd_get_filename (ibfd));
6510 #endif
6511
6512 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6513 {
6514 elf_flags_init (obfd) = TRUE;
6515 old_flags = new_flags;
6516 }
6517
6518 else if (new_flags == old_flags) /* Compatible flags are ok. */
6519 ;
6520
6521 else /* Possibly incompatible flags. */
6522 {
6523 /* Warn if different # of gprs are used. Note, 0 means nothing is
6524 said about the size of gprs. */
6525 new_partial = (new_flags & EF_FRV_GPR_MASK);
6526 old_partial = (old_flags & EF_FRV_GPR_MASK);
6527 if (new_partial == old_partial)
6528 ;
6529
6530 else if (new_partial == 0)
6531 ;
6532
6533 else if (old_partial == 0)
6534 old_flags |= new_partial;
6535
6536 else
6537 {
6538 switch (new_partial)
6539 {
6540 default: strcat (new_opt, " -mgpr-??"); break;
6541 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6542 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6543 }
6544
6545 switch (old_partial)
6546 {
6547 default: strcat (old_opt, " -mgpr-??"); break;
6548 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6549 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6550 }
6551 }
6552
6553 /* Warn if different # of fprs are used. Note, 0 means nothing is
6554 said about the size of fprs. */
6555 new_partial = (new_flags & EF_FRV_FPR_MASK);
6556 old_partial = (old_flags & EF_FRV_FPR_MASK);
6557 if (new_partial == old_partial)
6558 ;
6559
6560 else if (new_partial == 0)
6561 ;
6562
6563 else if (old_partial == 0)
6564 old_flags |= new_partial;
6565
6566 else
6567 {
6568 switch (new_partial)
6569 {
6570 default: strcat (new_opt, " -mfpr-?"); break;
6571 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6572 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6573 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6574 }
6575
6576 switch (old_partial)
6577 {
6578 default: strcat (old_opt, " -mfpr-?"); break;
6579 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6580 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6581 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6582 }
6583 }
6584
6585 /* Warn if different dword support was used. Note, 0 means nothing is
6586 said about the dword support. */
6587 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6588 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6589 if (new_partial == old_partial)
6590 ;
6591
6592 else if (new_partial == 0)
6593 ;
6594
6595 else if (old_partial == 0)
6596 old_flags |= new_partial;
6597
6598 else
6599 {
6600 switch (new_partial)
6601 {
6602 default: strcat (new_opt, " -mdword-?"); break;
6603 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6604 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6605 }
6606
6607 switch (old_partial)
6608 {
6609 default: strcat (old_opt, " -mdword-?"); break;
6610 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6611 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6612 }
6613 }
6614
6615 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6616 feature is used. */
6617 old_flags |= new_flags & (EF_FRV_DOUBLE
6618 | EF_FRV_MEDIA
6619 | EF_FRV_MULADD
6620 | EF_FRV_NON_PIC_RELOCS);
6621
6622 /* If any module was compiled without -G0, clear the G0 bit. */
6623 old_flags = ((old_flags & ~ EF_FRV_G0)
6624 | (old_flags & new_flags & EF_FRV_G0));
6625
6626 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6627 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6628 | (old_flags & new_flags & EF_FRV_NOPACK));
6629
6630 /* We don't have to do anything if the pic flags are the same, or the new
6631 module(s) were compiled with -mlibrary-pic. */
6632 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6633 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6634 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6635 ;
6636
6637 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6638 flags if any from the new module. */
6639 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6640 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6641
6642 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6643 else if (new_partial != 0 && old_partial != 0)
6644 old_flags |= new_partial;
6645
6646 /* One module was compiled for pic and the other was not, see if we have
6647 had any relocations that are not pic-safe. */
6648 else
6649 {
6650 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6651 old_flags |= new_partial;
6652 else
6653 {
6654 old_flags &= ~ EF_FRV_PIC_FLAGS;
6655 #ifndef FRV_NO_PIC_ERROR
6656 error = TRUE;
6657 (*_bfd_error_handler)
6658 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6659 bfd_get_filename (ibfd),
6660 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6661 #endif
6662 }
6663 }
6664
6665 /* Warn if different cpu is used (allow a specific cpu to override
6666 the generic cpu). */
6667 new_partial = (new_flags & EF_FRV_CPU_MASK);
6668 old_partial = (old_flags & EF_FRV_CPU_MASK);
6669 if (frv_elf_arch_extension_p (new_partial, old_partial))
6670 ;
6671
6672 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6673 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6674
6675 else
6676 {
6677 switch (new_partial)
6678 {
6679 default: strcat (new_opt, " -mcpu=?"); break;
6680 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6681 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6682 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6683 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6684 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6685 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6686 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6687 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6688 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6689 }
6690
6691 switch (old_partial)
6692 {
6693 default: strcat (old_opt, " -mcpu=?"); break;
6694 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6695 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6696 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6697 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6698 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6699 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6700 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6701 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6702 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6703 }
6704 }
6705
6706 /* Print out any mismatches from above. */
6707 if (new_opt[0])
6708 {
6709 error = TRUE;
6710 (*_bfd_error_handler)
6711 (_("%s: compiled with %s and linked with modules compiled with %s"),
6712 bfd_get_filename (ibfd), new_opt, old_opt);
6713 }
6714
6715 /* Warn about any other mismatches */
6716 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6717 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6718 if (new_partial != old_partial)
6719 {
6720 old_flags |= new_partial;
6721 error = TRUE;
6722 (*_bfd_error_handler)
6723 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6724 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6725 }
6726 }
6727
6728 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6729 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6730 old_flags |= EF_FRV_NOPACK;
6731
6732 /* Update the old flags now with changes made above. */
6733 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6734 elf_elfheader (obfd)->e_flags = old_flags;
6735 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6736 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6737
6738 if (((new_flags & EF_FRV_FDPIC) == 0)
6739 != (! IS_FDPIC (ibfd)))
6740 {
6741 error = TRUE;
6742 if (IS_FDPIC (obfd))
6743 (*_bfd_error_handler)
6744 (_("%s: cannot link non-fdpic object file into fdpic executable"),
6745 bfd_get_filename (ibfd));
6746 else
6747 (*_bfd_error_handler)
6748 (_("%s: cannot link fdpic object file into non-fdpic executable"),
6749 bfd_get_filename (ibfd));
6750 }
6751
6752 if (error)
6753 bfd_set_error (bfd_error_bad_value);
6754
6755 return !error;
6756 }
6757
6758 \f
6759 bfd_boolean
6760 frv_elf_print_private_bfd_data (abfd, ptr)
6761 bfd *abfd;
6762 PTR ptr;
6763 {
6764 FILE *file = (FILE *) ptr;
6765 flagword flags;
6766
6767 BFD_ASSERT (abfd != NULL && ptr != NULL);
6768
6769 /* Print normal ELF private data. */
6770 _bfd_elf_print_private_bfd_data (abfd, ptr);
6771
6772 flags = elf_elfheader (abfd)->e_flags;
6773 fprintf (file, _("private flags = 0x%lx:"), (long)flags);
6774
6775 switch (flags & EF_FRV_CPU_MASK)
6776 {
6777 default: break;
6778 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6779 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6780 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6781 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6782 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6783 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6784 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6785 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6786 }
6787
6788 switch (flags & EF_FRV_GPR_MASK)
6789 {
6790 default: break;
6791 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6792 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6793 }
6794
6795 switch (flags & EF_FRV_FPR_MASK)
6796 {
6797 default: break;
6798 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6799 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6800 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6801 }
6802
6803 switch (flags & EF_FRV_DWORD_MASK)
6804 {
6805 default: break;
6806 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6807 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6808 }
6809
6810 if (flags & EF_FRV_DOUBLE)
6811 fprintf (file, " -mdouble");
6812
6813 if (flags & EF_FRV_MEDIA)
6814 fprintf (file, " -mmedia");
6815
6816 if (flags & EF_FRV_MULADD)
6817 fprintf (file, " -mmuladd");
6818
6819 if (flags & EF_FRV_PIC)
6820 fprintf (file, " -fpic");
6821
6822 if (flags & EF_FRV_BIGPIC)
6823 fprintf (file, " -fPIC");
6824
6825 if (flags & EF_FRV_LIBPIC)
6826 fprintf (file, " -mlibrary-pic");
6827
6828 if (flags & EF_FRV_FDPIC)
6829 fprintf (file, " -mfdpic");
6830
6831 if (flags & EF_FRV_NON_PIC_RELOCS)
6832 fprintf (file, " non-pic relocations");
6833
6834 if (flags & EF_FRV_G0)
6835 fprintf (file, " -G0");
6836
6837 fputc ('\n', file);
6838 return TRUE;
6839 }
6840
6841 \f
6842 #define ELF_ARCH bfd_arch_frv
6843 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
6844 #define ELF_MAXPAGESIZE 0x1000
6845
6846 #define TARGET_BIG_SYM bfd_elf32_frv_vec
6847 #define TARGET_BIG_NAME "elf32-frv"
6848
6849 #define elf_info_to_howto frv_info_to_howto_rela
6850 #define elf_backend_relocate_section elf32_frv_relocate_section
6851 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
6852 #define elf_backend_gc_sweep_hook elf32_frv_gc_sweep_hook
6853 #define elf_backend_check_relocs elf32_frv_check_relocs
6854 #define elf_backend_object_p elf32_frv_object_p
6855 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
6856
6857 #define elf_backend_can_gc_sections 1
6858 #define elf_backend_rela_normal 1
6859
6860 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
6861 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
6862 #define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data
6863 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
6864 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
6865
6866 #define elf_backend_want_got_sym 1
6867 #define elf_backend_got_header_size 0
6868 #define elf_backend_want_got_plt 0
6869 #define elf_backend_plt_readonly 1
6870 #define elf_backend_want_plt_sym 0
6871 #define elf_backend_plt_header_size 0
6872
6873 #define elf_backend_finish_dynamic_sections \
6874 elf32_frv_finish_dynamic_sections
6875
6876 #include "elf32-target.h"
6877
6878 #undef ELF_MAXPAGESIZE
6879 #define ELF_MAXPAGESIZE 0x4000
6880
6881 #undef TARGET_BIG_SYM
6882 #define TARGET_BIG_SYM bfd_elf32_frvfdpic_vec
6883 #undef TARGET_BIG_NAME
6884 #define TARGET_BIG_NAME "elf32-frvfdpic"
6885 #undef elf32_bed
6886 #define elf32_bed elf32_frvfdpic_bed
6887
6888 #undef elf_info_to_howto_rel
6889 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
6890
6891 #undef bfd_elf32_bfd_link_hash_table_create
6892 #define bfd_elf32_bfd_link_hash_table_create \
6893 frvfdpic_elf_link_hash_table_create
6894 #undef elf_backend_always_size_sections
6895 #define elf_backend_always_size_sections \
6896 elf32_frvfdpic_always_size_sections
6897 #undef elf_backend_modify_segment_map
6898 #define elf_backend_modify_segment_map \
6899 elf32_frvfdpic_modify_segment_map
6900 #undef bfd_elf32_bfd_copy_private_bfd_data
6901 #define bfd_elf32_bfd_copy_private_bfd_data \
6902 elf32_frvfdpic_copy_private_bfd_data
6903
6904 #undef elf_backend_create_dynamic_sections
6905 #define elf_backend_create_dynamic_sections \
6906 elf32_frvfdpic_create_dynamic_sections
6907 #undef elf_backend_adjust_dynamic_symbol
6908 #define elf_backend_adjust_dynamic_symbol \
6909 elf32_frvfdpic_adjust_dynamic_symbol
6910 #undef elf_backend_size_dynamic_sections
6911 #define elf_backend_size_dynamic_sections \
6912 elf32_frvfdpic_size_dynamic_sections
6913 #undef bfd_elf32_bfd_relax_section
6914 #define bfd_elf32_bfd_relax_section \
6915 elf32_frvfdpic_relax_section
6916 #undef elf_backend_finish_dynamic_symbol
6917 #define elf_backend_finish_dynamic_symbol \
6918 elf32_frvfdpic_finish_dynamic_symbol
6919 #undef elf_backend_finish_dynamic_sections
6920 #define elf_backend_finish_dynamic_sections \
6921 elf32_frvfdpic_finish_dynamic_sections
6922
6923 #undef elf_backend_can_make_relative_eh_frame
6924 #define elf_backend_can_make_relative_eh_frame \
6925 frvfdpic_elf_use_relative_eh_frame
6926 #undef elf_backend_can_make_lsda_relative_eh_frame
6927 #define elf_backend_can_make_lsda_relative_eh_frame \
6928 frvfdpic_elf_use_relative_eh_frame
6929 #undef elf_backend_encode_eh_address
6930 #define elf_backend_encode_eh_address \
6931 frvfdpic_elf_encode_eh_address
6932
6933 #undef elf_backend_may_use_rel_p
6934 #define elf_backend_may_use_rel_p 1
6935 #undef elf_backend_may_use_rela_p
6936 #define elf_backend_may_use_rela_p 1
6937 /* We use REL for dynamic relocations only. */
6938 #undef elf_backend_default_use_rela_p
6939 #define elf_backend_default_use_rela_p 1
6940
6941 #undef elf_backend_omit_section_dynsym
6942 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
6943
6944 #include "elf32-target.h"
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