]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - bfd/elf32-frv.c
projects / thirdparty / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
* elf32-frv.c (_frvfdpic_check_discarded_relocs): New.
[thirdparty/binutils-gdb.git] / bfd / elf32-frv.c
1 /* FRV-specific support for 32-bit ELF.
2 Copyright 2002, 2003, 2004, 2005, 2006, 2007
3 Free Software Foundation, Inc.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/frv.h"
26 #include "elf/dwarf2.h"
27 #include "hashtab.h"
28
29 /* Forward declarations. */
30 static bfd_reloc_status_type elf32_frv_relocate_lo16
31 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
32 static bfd_reloc_status_type elf32_frv_relocate_hi16
33 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
34 static bfd_reloc_status_type elf32_frv_relocate_label24
35 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
36 static bfd_reloc_status_type elf32_frv_relocate_gprel12
37 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
38 bfd_byte *, bfd_vma));
39 static bfd_reloc_status_type elf32_frv_relocate_gprelu12
40 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
41 bfd_byte *, bfd_vma));
42 static bfd_reloc_status_type elf32_frv_relocate_gprello
43 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
44 bfd_byte *, bfd_vma));
45 static bfd_reloc_status_type elf32_frv_relocate_gprelhi
46 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
47 bfd_byte *, bfd_vma));
48 static reloc_howto_type *frv_reloc_type_lookup
49 PARAMS ((bfd *, bfd_reloc_code_real_type));
50 static void frv_info_to_howto_rela
51 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
52 static bfd_boolean elf32_frv_relocate_section
53 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
54 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
55 static bfd_boolean elf32_frv_add_symbol_hook
56 PARAMS (( bfd *, struct bfd_link_info *, Elf_Internal_Sym *,
57 const char **, flagword *, asection **, bfd_vma *));
58 static bfd_reloc_status_type frv_final_link_relocate
59 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
60 Elf_Internal_Rela *, bfd_vma));
61 static bfd_boolean elf32_frv_check_relocs
62 PARAMS ((bfd *, struct bfd_link_info *, asection *,
63 const Elf_Internal_Rela *));
64 static int elf32_frv_machine
65 PARAMS ((bfd *));
66 static bfd_boolean elf32_frv_object_p
67 PARAMS ((bfd *));
68 static bfd_boolean frv_elf_set_private_flags
69 PARAMS ((bfd *, flagword));
70 static bfd_boolean frv_elf_copy_private_bfd_data
71 PARAMS ((bfd *, bfd *));
72 static bfd_boolean frv_elf_merge_private_bfd_data
73 PARAMS ((bfd *, bfd *));
74 static bfd_boolean frv_elf_print_private_bfd_data
75 PARAMS ((bfd *, PTR));
76 static bfd_boolean elf32_frv_grok_prstatus (bfd * abfd,
77 Elf_Internal_Note * note);
78 static bfd_boolean elf32_frv_grok_psinfo (bfd * abfd,
79 Elf_Internal_Note * note);
80
81 static reloc_howto_type elf32_frv_howto_table [] =
82 {
83 /* This reloc does nothing. */
84 HOWTO (R_FRV_NONE, /* type */
85 0, /* rightshift */
86 2, /* size (0 = byte, 1 = short, 2 = long) */
87 32, /* bitsize */
88 FALSE, /* pc_relative */
89 0, /* bitpos */
90 complain_overflow_bitfield, /* complain_on_overflow */
91 bfd_elf_generic_reloc, /* special_function */
92 "R_FRV_NONE", /* name */
93 FALSE, /* partial_inplace */
94 0, /* src_mask */
95 0, /* dst_mask */
96 FALSE), /* pcrel_offset */
97
98 /* A 32 bit absolute relocation. */
99 HOWTO (R_FRV_32, /* type */
100 0, /* rightshift */
101 2, /* size (0 = byte, 1 = short, 2 = long) */
102 32, /* bitsize */
103 FALSE, /* pc_relative */
104 0, /* bitpos */
105 complain_overflow_bitfield, /* complain_on_overflow */
106 bfd_elf_generic_reloc, /* special_function */
107 "R_FRV_32", /* name */
108 FALSE, /* partial_inplace */
109 0xffffffff, /* src_mask */
110 0xffffffff, /* dst_mask */
111 FALSE), /* pcrel_offset */
112
113 /* A 16 bit pc-relative relocation. */
114 HOWTO (R_FRV_LABEL16, /* type */
115 2, /* rightshift */
116 2, /* size (0 = byte, 1 = short, 2 = long) */
117 16, /* bitsize */
118 TRUE, /* pc_relative */
119 0, /* bitpos */
120 complain_overflow_signed, /* complain_on_overflow */
121 bfd_elf_generic_reloc, /* special_function */
122 "R_FRV_LABEL16", /* name */
123 FALSE, /* partial_inplace */
124 0xffff, /* src_mask */
125 0xffff, /* dst_mask */
126 TRUE), /* pcrel_offset */
127
128 /* A 24-bit pc-relative relocation. */
129 HOWTO (R_FRV_LABEL24, /* type */
130 2, /* rightshift */
131 2, /* size (0 = byte, 1 = short, 2 = long) */
132 26, /* bitsize */
133 TRUE, /* pc_relative */
134 0, /* bitpos */
135 complain_overflow_bitfield, /* complain_on_overflow */
136 bfd_elf_generic_reloc, /* special_function */
137 "R_FRV_LABEL24", /* name */
138 FALSE, /* partial_inplace */
139 0x7e03ffff, /* src_mask */
140 0x7e03ffff, /* dst_mask */
141 TRUE), /* pcrel_offset */
142
143 HOWTO (R_FRV_LO16, /* type */
144 0, /* rightshift */
145 2, /* size (0 = byte, 1 = short, 2 = long) */
146 16, /* bitsize */
147 FALSE, /* pc_relative */
148 0, /* bitpos */
149 complain_overflow_dont, /* complain_on_overflow */
150 bfd_elf_generic_reloc, /* special_function */
151 "R_FRV_LO16", /* name */
152 FALSE, /* partial_inplace */
153 0xffff, /* src_mask */
154 0xffff, /* dst_mask */
155 FALSE), /* pcrel_offset */
156
157 HOWTO (R_FRV_HI16, /* type */
158 0, /* rightshift */
159 2, /* size (0 = byte, 1 = short, 2 = long) */
160 16, /* bitsize */
161 FALSE, /* pc_relative */
162 0, /* bitpos */
163 complain_overflow_dont, /* complain_on_overflow */
164 bfd_elf_generic_reloc, /* special_function */
165 "R_FRV_HI16", /* name */
166 FALSE, /* partial_inplace */
167 0xffff, /* src_mask */
168 0xffff, /* dst_mask */
169 FALSE), /* pcrel_offset */
170
171 HOWTO (R_FRV_GPREL12, /* type */
172 0, /* rightshift */
173 2, /* size (0 = byte, 1 = short, 2 = long) */
174 12, /* bitsize */
175 FALSE, /* pc_relative */
176 0, /* bitpos */
177 complain_overflow_dont, /* complain_on_overflow */
178 bfd_elf_generic_reloc, /* special_function */
179 "R_FRV_GPREL12", /* name */
180 FALSE, /* partial_inplace */
181 0xfff, /* src_mask */
182 0xfff, /* dst_mask */
183 FALSE), /* pcrel_offset */
184
185 HOWTO (R_FRV_GPRELU12, /* type */
186 0, /* rightshift */
187 2, /* size (0 = byte, 1 = short, 2 = long) */
188 12, /* bitsize */
189 FALSE, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_dont, /* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_FRV_GPRELU12", /* name */
194 FALSE, /* partial_inplace */
195 0xfff, /* src_mask */
196 0x3f03f, /* dst_mask */
197 FALSE), /* pcrel_offset */
198
199 HOWTO (R_FRV_GPREL32, /* type */
200 0, /* rightshift */
201 2, /* size (0 = byte, 1 = short, 2 = long) */
202 32, /* bitsize */
203 FALSE, /* pc_relative */
204 0, /* bitpos */
205 complain_overflow_dont, /* complain_on_overflow */
206 bfd_elf_generic_reloc, /* special_function */
207 "R_FRV_GPREL32", /* name */
208 FALSE, /* partial_inplace */
209 0xffffffff, /* src_mask */
210 0xffffffff, /* dst_mask */
211 FALSE), /* pcrel_offset */
212
213 HOWTO (R_FRV_GPRELHI, /* type */
214 0, /* rightshift */
215 2, /* size (0 = byte, 1 = short, 2 = long) */
216 16, /* bitsize */
217 FALSE, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_dont, /* complain_on_overflow */
220 bfd_elf_generic_reloc, /* special_function */
221 "R_FRV_GPRELHI", /* name */
222 FALSE, /* partial_inplace */
223 0xffff, /* src_mask */
224 0xffff, /* dst_mask */
225 FALSE), /* pcrel_offset */
226
227 HOWTO (R_FRV_GPRELLO, /* type */
228 0, /* rightshift */
229 2, /* size (0 = byte, 1 = short, 2 = long) */
230 16, /* bitsize */
231 FALSE, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_FRV_GPRELLO", /* name */
236 FALSE, /* partial_inplace */
237 0xffff, /* src_mask */
238 0xffff, /* dst_mask */
239 FALSE), /* pcrel_offset */
240
241 /* A 12-bit signed operand with the GOT offset for the address of
242 the symbol. */
243 HOWTO (R_FRV_GOT12, /* type */
244 0, /* rightshift */
245 2, /* size (0 = byte, 1 = short, 2 = long) */
246 12, /* bitsize */
247 FALSE, /* pc_relative */
248 0, /* bitpos */
249 complain_overflow_signed, /* complain_on_overflow */
250 bfd_elf_generic_reloc, /* special_function */
251 "R_FRV_GOT12", /* name */
252 FALSE, /* partial_inplace */
253 0xfff, /* src_mask */
254 0xfff, /* dst_mask */
255 FALSE), /* pcrel_offset */
256
257 /* The upper 16 bits of the GOT offset for the address of the
258 symbol. */
259 HOWTO (R_FRV_GOTHI, /* type */
260 0, /* rightshift */
261 2, /* size (0 = byte, 1 = short, 2 = long) */
262 16, /* bitsize */
263 FALSE, /* pc_relative */
264 0, /* bitpos */
265 complain_overflow_dont, /* complain_on_overflow */
266 bfd_elf_generic_reloc, /* special_function */
267 "R_FRV_GOTHI", /* name */
268 FALSE, /* partial_inplace */
269 0xffff, /* src_mask */
270 0xffff, /* dst_mask */
271 FALSE), /* pcrel_offset */
272
273 /* The lower 16 bits of the GOT offset for the address of the
274 symbol. */
275 HOWTO (R_FRV_GOTLO, /* type */
276 0, /* rightshift */
277 2, /* size (0 = byte, 1 = short, 2 = long) */
278 16, /* bitsize */
279 FALSE, /* pc_relative */
280 0, /* bitpos */
281 complain_overflow_dont, /* complain_on_overflow */
282 bfd_elf_generic_reloc, /* special_function */
283 "R_FRV_GOTLO", /* name */
284 FALSE, /* partial_inplace */
285 0xffff, /* src_mask */
286 0xffff, /* dst_mask */
287 FALSE), /* pcrel_offset */
288
289 /* The 32-bit address of the canonical descriptor of a function. */
290 HOWTO (R_FRV_FUNCDESC, /* type */
291 0, /* rightshift */
292 2, /* size (0 = byte, 1 = short, 2 = long) */
293 32, /* bitsize */
294 FALSE, /* pc_relative */
295 0, /* bitpos */
296 complain_overflow_bitfield, /* complain_on_overflow */
297 bfd_elf_generic_reloc, /* special_function */
298 "R_FRV_FUNCDESC", /* name */
299 FALSE, /* partial_inplace */
300 0xffffffff, /* src_mask */
301 0xffffffff, /* dst_mask */
302 FALSE), /* pcrel_offset */
303
304 /* A 12-bit signed operand with the GOT offset for the address of
305 canonical descriptor of a function. */
306 HOWTO (R_FRV_FUNCDESC_GOT12, /* type */
307 0, /* rightshift */
308 2, /* size (0 = byte, 1 = short, 2 = long) */
309 12, /* bitsize */
310 FALSE, /* pc_relative */
311 0, /* bitpos */
312 complain_overflow_signed, /* complain_on_overflow */
313 bfd_elf_generic_reloc, /* special_function */
314 "R_FRV_FUNCDESC_GOT12", /* name */
315 FALSE, /* partial_inplace */
316 0xfff, /* src_mask */
317 0xfff, /* dst_mask */
318 FALSE), /* pcrel_offset */
319
320 /* The upper 16 bits of the GOT offset for the address of the
321 canonical descriptor of a function. */
322 HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */
323 0, /* rightshift */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
325 16, /* bitsize */
326 FALSE, /* pc_relative */
327 0, /* bitpos */
328 complain_overflow_dont, /* complain_on_overflow */
329 bfd_elf_generic_reloc, /* special_function */
330 "R_FRV_FUNCDESC_GOTHI", /* name */
331 FALSE, /* partial_inplace */
332 0xffff, /* src_mask */
333 0xffff, /* dst_mask */
334 FALSE), /* pcrel_offset */
335
336 /* The lower 16 bits of the GOT offset for the address of the
337 canonical descriptor of a function. */
338 HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */
339 0, /* rightshift */
340 2, /* size (0 = byte, 1 = short, 2 = long) */
341 16, /* bitsize */
342 FALSE, /* pc_relative */
343 0, /* bitpos */
344 complain_overflow_dont, /* complain_on_overflow */
345 bfd_elf_generic_reloc, /* special_function */
346 "R_FRV_FUNCDESC_GOTLO", /* name */
347 FALSE, /* partial_inplace */
348 0xffff, /* src_mask */
349 0xffff, /* dst_mask */
350 FALSE), /* pcrel_offset */
351
352 /* The 64-bit descriptor of a function. */
353 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
354 0, /* rightshift */
355 2, /* size (0 = byte, 1 = short, 2 = long) */
356 64, /* bitsize */
357 FALSE, /* pc_relative */
358 0, /* bitpos */
359 complain_overflow_bitfield, /* complain_on_overflow */
360 bfd_elf_generic_reloc, /* special_function */
361 "R_FRV_FUNCDESC_VALUE", /* name */
362 FALSE, /* partial_inplace */
363 0xffffffff, /* src_mask */
364 0xffffffff, /* dst_mask */
365 FALSE), /* pcrel_offset */
366
367 /* A 12-bit signed operand with the GOT offset for the address of
368 canonical descriptor of a function. */
369 HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
370 0, /* rightshift */
371 2, /* size (0 = byte, 1 = short, 2 = long) */
372 12, /* bitsize */
373 FALSE, /* pc_relative */
374 0, /* bitpos */
375 complain_overflow_signed, /* complain_on_overflow */
376 bfd_elf_generic_reloc, /* special_function */
377 "R_FRV_FUNCDESC_GOTOFF12", /* name */
378 FALSE, /* partial_inplace */
379 0xfff, /* src_mask */
380 0xfff, /* dst_mask */
381 FALSE), /* pcrel_offset */
382
383 /* The upper 16 bits of the GOT offset for the address of the
384 canonical descriptor of a function. */
385 HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
386 0, /* rightshift */
387 2, /* size (0 = byte, 1 = short, 2 = long) */
388 16, /* bitsize */
389 FALSE, /* pc_relative */
390 0, /* bitpos */
391 complain_overflow_dont, /* complain_on_overflow */
392 bfd_elf_generic_reloc, /* special_function */
393 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
394 FALSE, /* partial_inplace */
395 0xffff, /* src_mask */
396 0xffff, /* dst_mask */
397 FALSE), /* pcrel_offset */
398
399 /* The lower 16 bits of the GOT offset for the address of the
400 canonical descriptor of a function. */
401 HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
402 0, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 16, /* bitsize */
405 FALSE, /* pc_relative */
406 0, /* bitpos */
407 complain_overflow_dont, /* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
410 FALSE, /* partial_inplace */
411 0xffff, /* src_mask */
412 0xffff, /* dst_mask */
413 FALSE), /* pcrel_offset */
414
415 /* A 12-bit signed operand with the GOT offset for the address of
416 the symbol. */
417 HOWTO (R_FRV_GOTOFF12, /* type */
418 0, /* rightshift */
419 2, /* size (0 = byte, 1 = short, 2 = long) */
420 12, /* bitsize */
421 FALSE, /* pc_relative */
422 0, /* bitpos */
423 complain_overflow_signed, /* complain_on_overflow */
424 bfd_elf_generic_reloc, /* special_function */
425 "R_FRV_GOTOFF12", /* name */
426 FALSE, /* partial_inplace */
427 0xfff, /* src_mask */
428 0xfff, /* dst_mask */
429 FALSE), /* pcrel_offset */
430
431 /* The upper 16 bits of the GOT offset for the address of the
432 symbol. */
433 HOWTO (R_FRV_GOTOFFHI, /* type */
434 0, /* rightshift */
435 2, /* size (0 = byte, 1 = short, 2 = long) */
436 16, /* bitsize */
437 FALSE, /* pc_relative */
438 0, /* bitpos */
439 complain_overflow_dont, /* complain_on_overflow */
440 bfd_elf_generic_reloc, /* special_function */
441 "R_FRV_GOTOFFHI", /* name */
442 FALSE, /* partial_inplace */
443 0xffff, /* src_mask */
444 0xffff, /* dst_mask */
445 FALSE), /* pcrel_offset */
446
447 /* The lower 16 bits of the GOT offset for the address of the
448 symbol. */
449 HOWTO (R_FRV_GOTOFFLO, /* type */
450 0, /* rightshift */
451 2, /* size (0 = byte, 1 = short, 2 = long) */
452 16, /* bitsize */
453 FALSE, /* pc_relative */
454 0, /* bitpos */
455 complain_overflow_dont, /* complain_on_overflow */
456 bfd_elf_generic_reloc, /* special_function */
457 "R_FRV_GOTOFFLO", /* name */
458 FALSE, /* partial_inplace */
459 0xffff, /* src_mask */
460 0xffff, /* dst_mask */
461 FALSE), /* pcrel_offset */
462
463 /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
464 a thread-local symbol. If the symbol number is 0, it refers to
465 the module. */
466 HOWTO (R_FRV_GETTLSOFF, /* type */
467 2, /* rightshift */
468 2, /* size (0 = byte, 1 = short, 2 = long) */
469 26, /* bitsize */
470 TRUE, /* pc_relative */
471 0, /* bitpos */
472 complain_overflow_bitfield, /* complain_on_overflow */
473 bfd_elf_generic_reloc, /* special_function */
474 "R_FRV_GETTLSOFF", /* name */
475 FALSE, /* partial_inplace */
476 0x7e03ffff, /* src_mask */
477 0x7e03ffff, /* dst_mask */
478 TRUE), /* pcrel_offset */
479
480 /* A 64-bit TLS descriptor for a symbol. This relocation is only
481 valid as a REL, dynamic relocation. */
482 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
483 0, /* rightshift */
484 2, /* size (0 = byte, 1 = short, 2 = long) */
485 64, /* bitsize */
486 FALSE, /* pc_relative */
487 0, /* bitpos */
488 complain_overflow_bitfield, /* complain_on_overflow */
489 bfd_elf_generic_reloc, /* special_function */
490 "R_FRV_TLSDESC_VALUE", /* name */
491 FALSE, /* partial_inplace */
492 0xffffffff, /* src_mask */
493 0xffffffff, /* dst_mask */
494 FALSE), /* pcrel_offset */
495
496 /* A 12-bit signed operand with the GOT offset for the TLS
497 descriptor of the symbol. */
498 HOWTO (R_FRV_GOTTLSDESC12, /* type */
499 0, /* rightshift */
500 2, /* size (0 = byte, 1 = short, 2 = long) */
501 12, /* bitsize */
502 FALSE, /* pc_relative */
503 0, /* bitpos */
504 complain_overflow_signed, /* complain_on_overflow */
505 bfd_elf_generic_reloc, /* special_function */
506 "R_FRV_GOTTLSDESC12", /* name */
507 FALSE, /* partial_inplace */
508 0xfff, /* src_mask */
509 0xfff, /* dst_mask */
510 FALSE), /* pcrel_offset */
511
512 /* The upper 16 bits of the GOT offset for the TLS descriptor of the
513 symbol. */
514 HOWTO (R_FRV_GOTTLSDESCHI, /* type */
515 0, /* rightshift */
516 2, /* size (0 = byte, 1 = short, 2 = long) */
517 16, /* bitsize */
518 FALSE, /* pc_relative */
519 0, /* bitpos */
520 complain_overflow_dont, /* complain_on_overflow */
521 bfd_elf_generic_reloc, /* special_function */
522 "R_FRV_GOTTLSDESCHI", /* name */
523 FALSE, /* partial_inplace */
524 0xffff, /* src_mask */
525 0xffff, /* dst_mask */
526 FALSE), /* pcrel_offset */
527
528 /* The lower 16 bits of the GOT offset for the TLS descriptor of the
529 symbol. */
530 HOWTO (R_FRV_GOTTLSDESCLO, /* type */
531 0, /* rightshift */
532 2, /* size (0 = byte, 1 = short, 2 = long) */
533 16, /* bitsize */
534 FALSE, /* pc_relative */
535 0, /* bitpos */
536 complain_overflow_dont, /* complain_on_overflow */
537 bfd_elf_generic_reloc, /* special_function */
538 "R_FRV_GOTTLSDESCLO", /* name */
539 FALSE, /* partial_inplace */
540 0xffff, /* src_mask */
541 0xffff, /* dst_mask */
542 FALSE), /* pcrel_offset */
543
544 /* A 12-bit signed operand with the offset from the module base
545 address to the thread-local symbol address. */
546 HOWTO (R_FRV_TLSMOFF12, /* type */
547 0, /* rightshift */
548 2, /* size (0 = byte, 1 = short, 2 = long) */
549 12, /* bitsize */
550 FALSE, /* pc_relative */
551 0, /* bitpos */
552 complain_overflow_signed, /* complain_on_overflow */
553 bfd_elf_generic_reloc, /* special_function */
554 "R_FRV_TLSMOFF12", /* name */
555 FALSE, /* partial_inplace */
556 0xfff, /* src_mask */
557 0xfff, /* dst_mask */
558 FALSE), /* pcrel_offset */
559
560 /* The upper 16 bits of the offset from the module base address to
561 the thread-local symbol address. */
562 HOWTO (R_FRV_TLSMOFFHI, /* type */
563 0, /* rightshift */
564 2, /* size (0 = byte, 1 = short, 2 = long) */
565 16, /* bitsize */
566 FALSE, /* pc_relative */
567 0, /* bitpos */
568 complain_overflow_dont, /* complain_on_overflow */
569 bfd_elf_generic_reloc, /* special_function */
570 "R_FRV_TLSMOFFHI", /* name */
571 FALSE, /* partial_inplace */
572 0xffff, /* src_mask */
573 0xffff, /* dst_mask */
574 FALSE), /* pcrel_offset */
575
576 /* The lower 16 bits of the offset from the module base address to
577 the thread-local symbol address. */
578 HOWTO (R_FRV_TLSMOFFLO, /* type */
579 0, /* rightshift */
580 2, /* size (0 = byte, 1 = short, 2 = long) */
581 16, /* bitsize */
582 FALSE, /* pc_relative */
583 0, /* bitpos */
584 complain_overflow_dont, /* complain_on_overflow */
585 bfd_elf_generic_reloc, /* special_function */
586 "R_FRV_TLSMOFFLO", /* name */
587 FALSE, /* partial_inplace */
588 0xffff, /* src_mask */
589 0xffff, /* dst_mask */
590 FALSE), /* pcrel_offset */
591
592 /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
593 for a symbol. */
594 HOWTO (R_FRV_GOTTLSOFF12, /* type */
595 0, /* rightshift */
596 2, /* size (0 = byte, 1 = short, 2 = long) */
597 12, /* bitsize */
598 FALSE, /* pc_relative */
599 0, /* bitpos */
600 complain_overflow_signed, /* complain_on_overflow */
601 bfd_elf_generic_reloc, /* special_function */
602 "R_FRV_GOTTLSOFF12", /* name */
603 FALSE, /* partial_inplace */
604 0xfff, /* src_mask */
605 0xfff, /* dst_mask */
606 FALSE), /* pcrel_offset */
607
608 /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
609 symbol. */
610 HOWTO (R_FRV_GOTTLSOFFHI, /* type */
611 0, /* rightshift */
612 2, /* size (0 = byte, 1 = short, 2 = long) */
613 16, /* bitsize */
614 FALSE, /* pc_relative */
615 0, /* bitpos */
616 complain_overflow_dont, /* complain_on_overflow */
617 bfd_elf_generic_reloc, /* special_function */
618 "R_FRV_GOTTLSOFFHI", /* name */
619 FALSE, /* partial_inplace */
620 0xffff, /* src_mask */
621 0xffff, /* dst_mask */
622 FALSE), /* pcrel_offset */
623
624 /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
625 symbol. */
626 HOWTO (R_FRV_GOTTLSOFFLO, /* type */
627 0, /* rightshift */
628 2, /* size (0 = byte, 1 = short, 2 = long) */
629 16, /* bitsize */
630 FALSE, /* pc_relative */
631 0, /* bitpos */
632 complain_overflow_dont, /* complain_on_overflow */
633 bfd_elf_generic_reloc, /* special_function */
634 "R_FRV_GOTTLSOFFLO", /* name */
635 FALSE, /* partial_inplace */
636 0xffff, /* src_mask */
637 0xffff, /* dst_mask */
638 FALSE), /* pcrel_offset */
639
640 /* The 32-bit offset from the thread pointer (not the module base
641 address) to a thread-local symbol. */
642 HOWTO (R_FRV_TLSOFF, /* type */
643 0, /* rightshift */
644 2, /* size (0 = byte, 1 = short, 2 = long) */
645 32, /* bitsize */
646 FALSE, /* pc_relative */
647 0, /* bitpos */
648 complain_overflow_dont, /* complain_on_overflow */
649 bfd_elf_generic_reloc, /* special_function */
650 "R_FRV_TLSOFF", /* name */
651 FALSE, /* partial_inplace */
652 0xffffffff, /* src_mask */
653 0xffffffff, /* dst_mask */
654 FALSE), /* pcrel_offset */
655
656 /* An annotation for linker relaxation, that denotes the
657 symbol+addend whose TLS descriptor is referenced by the sum of
658 the two input registers of an ldd instruction. */
659 HOWTO (R_FRV_TLSDESC_RELAX, /* type */
660 0, /* rightshift */
661 2, /* size (0 = byte, 1 = short, 2 = long) */
662 0, /* bitsize */
663 FALSE, /* pc_relative */
664 0, /* bitpos */
665 complain_overflow_dont, /* complain_on_overflow */
666 bfd_elf_generic_reloc, /* special_function */
667 "R_FRV_TLSDESC_RELAX", /* name */
668 FALSE, /* partial_inplace */
669 0, /* src_mask */
670 0, /* dst_mask */
671 FALSE), /* pcrel_offset */
672
673 /* An annotation for linker relaxation, that denotes the
674 symbol+addend whose TLS resolver entry point is given by the sum
675 of the two register operands of an calll instruction. */
676 HOWTO (R_FRV_GETTLSOFF_RELAX, /* type */
677 0, /* rightshift */
678 2, /* size (0 = byte, 1 = short, 2 = long) */
679 0, /* bitsize */
680 FALSE, /* pc_relative */
681 0, /* bitpos */
682 complain_overflow_dont, /* complain_on_overflow */
683 bfd_elf_generic_reloc, /* special_function */
684 "R_FRV_GETTLSOFF_RELAX", /* name */
685 FALSE, /* partial_inplace */
686 0, /* src_mask */
687 0, /* dst_mask */
688 FALSE), /* pcrel_offset */
689
690 /* An annotation for linker relaxation, that denotes the
691 symbol+addend whose TLS offset GOT entry is given by the sum of
692 the two input registers of an ld instruction. */
693 HOWTO (R_FRV_TLSOFF_RELAX, /* type */
694 0, /* rightshift */
695 2, /* size (0 = byte, 1 = short, 2 = long) */
696 0, /* bitsize */
697 FALSE, /* pc_relative */
698 0, /* bitpos */
699 complain_overflow_bitfield, /* complain_on_overflow */
700 bfd_elf_generic_reloc, /* special_function */
701 "R_FRV_TLSOFF_RELAX", /* name */
702 FALSE, /* partial_inplace */
703 0, /* src_mask */
704 0, /* dst_mask */
705 FALSE), /* pcrel_offset */
706
707 /* A 32-bit offset from the module base address to
708 the thread-local symbol address. */
709 HOWTO (R_FRV_TLSMOFF, /* type */
710 0, /* rightshift */
711 2, /* size (0 = byte, 1 = short, 2 = long) */
712 32, /* bitsize */
713 FALSE, /* pc_relative */
714 0, /* bitpos */
715 complain_overflow_dont, /* complain_on_overflow */
716 bfd_elf_generic_reloc, /* special_function */
717 "R_FRV_TLSMOFF", /* name */
718 FALSE, /* partial_inplace */
719 0xffffffff, /* src_mask */
720 0xffffffff, /* dst_mask */
721 FALSE), /* pcrel_offset */
722 };
723
724 /* GNU extension to record C++ vtable hierarchy. */
725 static reloc_howto_type elf32_frv_vtinherit_howto =
726 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
727 0, /* rightshift */
728 2, /* size (0 = byte, 1 = short, 2 = long) */
729 0, /* bitsize */
730 FALSE, /* pc_relative */
731 0, /* bitpos */
732 complain_overflow_dont, /* complain_on_overflow */
733 NULL, /* special_function */
734 "R_FRV_GNU_VTINHERIT", /* name */
735 FALSE, /* partial_inplace */
736 0, /* src_mask */
737 0, /* dst_mask */
738 FALSE); /* pcrel_offset */
739
740 /* GNU extension to record C++ vtable member usage. */
741 static reloc_howto_type elf32_frv_vtentry_howto =
742 HOWTO (R_FRV_GNU_VTENTRY, /* type */
743 0, /* rightshift */
744 2, /* size (0 = byte, 1 = short, 2 = long) */
745 0, /* bitsize */
746 FALSE, /* pc_relative */
747 0, /* bitpos */
748 complain_overflow_dont, /* complain_on_overflow */
749 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
750 "R_FRV_GNU_VTENTRY", /* name */
751 FALSE, /* partial_inplace */
752 0, /* src_mask */
753 0, /* dst_mask */
754 FALSE); /* pcrel_offset */
755
756 /* The following 3 relocations are REL. The only difference to the
757 entries in the table above are that partial_inplace is TRUE. */
758 static reloc_howto_type elf32_frv_rel_32_howto =
759 HOWTO (R_FRV_32, /* type */
760 0, /* rightshift */
761 2, /* size (0 = byte, 1 = short, 2 = long) */
762 32, /* bitsize */
763 FALSE, /* pc_relative */
764 0, /* bitpos */
765 complain_overflow_bitfield, /* complain_on_overflow */
766 bfd_elf_generic_reloc, /* special_function */
767 "R_FRV_32", /* name */
768 TRUE, /* partial_inplace */
769 0xffffffff, /* src_mask */
770 0xffffffff, /* dst_mask */
771 FALSE); /* pcrel_offset */
772
773 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
774 HOWTO (R_FRV_FUNCDESC, /* type */
775 0, /* rightshift */
776 2, /* size (0 = byte, 1 = short, 2 = long) */
777 32, /* bitsize */
778 FALSE, /* pc_relative */
779 0, /* bitpos */
780 complain_overflow_bitfield, /* complain_on_overflow */
781 bfd_elf_generic_reloc, /* special_function */
782 "R_FRV_FUNCDESC", /* name */
783 TRUE, /* partial_inplace */
784 0xffffffff, /* src_mask */
785 0xffffffff, /* dst_mask */
786 FALSE); /* pcrel_offset */
787
788 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
789 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
790 0, /* rightshift */
791 2, /* size (0 = byte, 1 = short, 2 = long) */
792 64, /* bitsize */
793 FALSE, /* pc_relative */
794 0, /* bitpos */
795 complain_overflow_bitfield, /* complain_on_overflow */
796 bfd_elf_generic_reloc, /* special_function */
797 "R_FRV_FUNCDESC_VALUE", /* name */
798 TRUE, /* partial_inplace */
799 0xffffffff, /* src_mask */
800 0xffffffff, /* dst_mask */
801 FALSE); /* pcrel_offset */
802
803 static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
804 /* A 64-bit TLS descriptor for a symbol. The first word resolves to
805 an entry point, and the second resolves to a special argument.
806 If the symbol turns out to be in static TLS, the entry point is a
807 return instruction, and the special argument is the TLS offset
808 for the symbol. If it's in dynamic TLS, the entry point is a TLS
809 offset resolver, and the special argument is a pointer to a data
810 structure allocated by the dynamic loader, containing the GOT
811 address for the offset resolver, the module id, the offset within
812 the module, and anything else the TLS offset resolver might need
813 to determine the TLS offset for the symbol in the running
814 thread. */
815 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
816 0, /* rightshift */
817 2, /* size (0 = byte, 1 = short, 2 = long) */
818 64, /* bitsize */
819 FALSE, /* pc_relative */
820 0, /* bitpos */
821 complain_overflow_bitfield, /* complain_on_overflow */
822 bfd_elf_generic_reloc, /* special_function */
823 "R_FRV_TLSDESC_VALUE", /* name */
824 TRUE, /* partial_inplace */
825 0xffffffff, /* src_mask */
826 0xffffffff, /* dst_mask */
827 FALSE); /* pcrel_offset */
828
829 static reloc_howto_type elf32_frv_rel_tlsoff_howto =
830 /* The 32-bit offset from the thread pointer (not the module base
831 address) to a thread-local symbol. */
832 HOWTO (R_FRV_TLSOFF, /* type */
833 0, /* rightshift */
834 2, /* size (0 = byte, 1 = short, 2 = long) */
835 32, /* bitsize */
836 FALSE, /* pc_relative */
837 0, /* bitpos */
838 complain_overflow_bitfield, /* complain_on_overflow */
839 bfd_elf_generic_reloc, /* special_function */
840 "R_FRV_TLSOFF", /* name */
841 TRUE, /* partial_inplace */
842 0xffffffff, /* src_mask */
843 0xffffffff, /* dst_mask */
844 FALSE); /* pcrel_offset */
845
846
847 \f
848 extern const bfd_target bfd_elf32_frvfdpic_vec;
849 #define IS_FDPIC(bfd) ((bfd)->xvec == &bfd_elf32_frvfdpic_vec)
850
851 /* An extension of the elf hash table data structure, containing some
852 additional FRV-specific data. */
853 struct frvfdpic_elf_link_hash_table
854 {
855 struct elf_link_hash_table elf;
856
857 /* A pointer to the .got section. */
858 asection *sgot;
859 /* A pointer to the .rel.got section. */
860 asection *sgotrel;
861 /* A pointer to the .rofixup section. */
862 asection *sgotfixup;
863 /* A pointer to the .plt section. */
864 asection *splt;
865 /* A pointer to the .rel.plt section. */
866 asection *spltrel;
867 /* GOT base offset. */
868 bfd_vma got0;
869 /* Location of the first non-lazy PLT entry, i.e., the number of
870 bytes taken by lazy PLT entries. If locally-bound TLS
871 descriptors require a ret instruction, it will be placed at this
872 offset. */
873 bfd_vma plt0;
874 /* A hash table holding information about which symbols were
875 referenced with which PIC-related relocations. */
876 struct htab *relocs_info;
877 /* Summary reloc information collected by
878 _frvfdpic_count_got_plt_entries. */
879 struct _frvfdpic_dynamic_got_info *g;
880 };
881
882 /* Get the FRV ELF linker hash table from a link_info structure. */
883
884 #define frvfdpic_hash_table(info) \
885 ((struct frvfdpic_elf_link_hash_table *) ((info)->hash))
886
887 #define frvfdpic_got_section(info) \
888 (frvfdpic_hash_table (info)->sgot)
889 #define frvfdpic_gotrel_section(info) \
890 (frvfdpic_hash_table (info)->sgotrel)
891 #define frvfdpic_gotfixup_section(info) \
892 (frvfdpic_hash_table (info)->sgotfixup)
893 #define frvfdpic_plt_section(info) \
894 (frvfdpic_hash_table (info)->splt)
895 #define frvfdpic_pltrel_section(info) \
896 (frvfdpic_hash_table (info)->spltrel)
897 #define frvfdpic_relocs_info(info) \
898 (frvfdpic_hash_table (info)->relocs_info)
899 #define frvfdpic_got_initial_offset(info) \
900 (frvfdpic_hash_table (info)->got0)
901 #define frvfdpic_plt_initial_offset(info) \
902 (frvfdpic_hash_table (info)->plt0)
903 #define frvfdpic_dynamic_got_plt_info(info) \
904 (frvfdpic_hash_table (info)->g)
905
906 /* Currently it's the same, but if some day we have a reason to change
907 it, we'd better be using a different macro.
908
909 FIXME: if there's any TLS PLT entry that uses local-exec or
910 initial-exec models, we could use the ret at the end of any of them
911 instead of adding one more. */
912 #define frvfdpic_plt_tls_ret_offset(info) \
913 (frvfdpic_plt_initial_offset (info))
914
915 /* The name of the dynamic interpreter. This is put in the .interp
916 section. */
917
918 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
919
920 #define DEFAULT_STACK_SIZE 0x20000
921
922 /* This structure is used to collect the number of entries present in
923 each addressable range of the got. */
924 struct _frvfdpic_dynamic_got_info
925 {
926 /* Several bits of information about the current link. */
927 struct bfd_link_info *info;
928 /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
929 ranges. */
930 bfd_vma got12, gotlos, gothilo;
931 /* Total GOT size needed for function descriptor entries within the 12-,
932 16- or 32-bit ranges. */
933 bfd_vma fd12, fdlos, fdhilo;
934 /* Total GOT size needed by function descriptor entries referenced
935 in PLT entries, that would be profitable to place in offsets
936 close to the PIC register. */
937 bfd_vma fdplt;
938 /* Total PLT size needed by lazy PLT entries. */
939 bfd_vma lzplt;
940 /* Total GOT size needed for TLS descriptor entries within the 12-,
941 16- or 32-bit ranges. */
942 bfd_vma tlsd12, tlsdlos, tlsdhilo;
943 /* Total GOT size needed by TLS descriptors referenced in PLT
944 entries, that would be profitable to place in offers close to the
945 PIC register. */
946 bfd_vma tlsdplt;
947 /* Total PLT size needed by TLS lazy PLT entries. */
948 bfd_vma tlslzplt;
949 /* Number of relocations carried over from input object files. */
950 unsigned long relocs;
951 /* Number of fixups introduced by relocations in input object files. */
952 unsigned long fixups;
953 /* The number of fixups that reference the ret instruction added to
954 the PLT for locally-resolved TLS descriptors. */
955 unsigned long tls_ret_refs;
956 };
957
958 /* This structure is used to assign offsets to got entries, function
959 descriptors, plt entries and lazy plt entries. */
960
961 struct _frvfdpic_dynamic_got_plt_info
962 {
963 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
964 struct _frvfdpic_dynamic_got_info g;
965
966 /* For each addressable range, we record a MAX (positive) and MIN
967 (negative) value. CUR is used to assign got entries, and it's
968 incremented from an initial positive value to MAX, then from MIN
969 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
970 assign function descriptors, and it's decreased from an initial
971 non-positive value to MIN, then from MAX down to CUR (unless CUR
972 wraps around first). All of MIN, MAX, CUR and FDCUR always point
973 to even words. ODD, if non-zero, indicates an odd word to be
974 used for the next got entry, otherwise CUR is used and
975 incremented by a pair of words, wrapping around when it reaches
976 MAX. FDCUR is decremented (and wrapped) before the next function
977 descriptor is chosen. FDPLT indicates the number of remaining
978 slots that can be used for function descriptors used only by PLT
979 entries.
980
981 TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
982 starts as MAX, and grows up to TMAX, then wraps around to TMIN
983 and grows up to MIN. TLSDPLT indicates the number of remaining
984 slots that can be used for TLS descriptors used only by TLS PLT
985 entries. */
986 struct _frvfdpic_dynamic_got_alloc_data
987 {
988 bfd_signed_vma max, cur, odd, fdcur, min;
989 bfd_signed_vma tmax, tcur, tmin;
990 bfd_vma fdplt, tlsdplt;
991 } got12, gotlos, gothilo;
992 };
993
994 /* Create an FRV ELF linker hash table. */
995
996 static struct bfd_link_hash_table *
997 frvfdpic_elf_link_hash_table_create (bfd *abfd)
998 {
999 struct frvfdpic_elf_link_hash_table *ret;
1000 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
1001
1002 ret = bfd_zalloc (abfd, amt);
1003 if (ret == NULL)
1004 return NULL;
1005
1006 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1007 _bfd_elf_link_hash_newfunc,
1008 sizeof (struct elf_link_hash_entry)))
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 static reloc_howto_type *
2594 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2595 {
2596 unsigned int i;
2597
2598 for (i = 0;
2599 i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2600 i++)
2601 if (elf32_frv_howto_table[i].name != NULL
2602 && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2603 return &elf32_frv_howto_table[i];
2604
2605 if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2606 return &elf32_frv_vtinherit_howto;
2607 if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2608 return &elf32_frv_vtentry_howto;
2609
2610 return NULL;
2611 }
2612
2613 /* Set the howto pointer for an FRV ELF reloc. */
2614
2615 static void
2616 frv_info_to_howto_rela (abfd, cache_ptr, dst)
2617 bfd *abfd ATTRIBUTE_UNUSED;
2618 arelent *cache_ptr;
2619 Elf_Internal_Rela *dst;
2620 {
2621 unsigned int r_type;
2622
2623 r_type = ELF32_R_TYPE (dst->r_info);
2624 switch (r_type)
2625 {
2626 case R_FRV_GNU_VTINHERIT:
2627 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2628 break;
2629
2630 case R_FRV_GNU_VTENTRY:
2631 cache_ptr->howto = &elf32_frv_vtentry_howto;
2632 break;
2633
2634 default:
2635 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2636 break;
2637 }
2638 }
2639
2640 /* Set the howto pointer for an FRV ELF REL reloc. */
2641 static void
2642 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2643 arelent *cache_ptr, Elf_Internal_Rela *dst)
2644 {
2645 unsigned int r_type;
2646
2647 r_type = ELF32_R_TYPE (dst->r_info);
2648 switch (r_type)
2649 {
2650 case R_FRV_32:
2651 cache_ptr->howto = &elf32_frv_rel_32_howto;
2652 break;
2653
2654 case R_FRV_FUNCDESC:
2655 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2656 break;
2657
2658 case R_FRV_FUNCDESC_VALUE:
2659 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2660 break;
2661
2662 case R_FRV_TLSDESC_VALUE:
2663 cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2664 break;
2665
2666 case R_FRV_TLSOFF:
2667 cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2668 break;
2669
2670 default:
2671 cache_ptr->howto = NULL;
2672 break;
2673 }
2674 }
2675 \f
2676 /* Perform a single relocation. By default we use the standard BFD
2677 routines, but a few relocs, we have to do them ourselves. */
2678
2679 static bfd_reloc_status_type
2680 frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
2681 relocation)
2682 reloc_howto_type *howto;
2683 bfd *input_bfd;
2684 asection *input_section;
2685 bfd_byte *contents;
2686 Elf_Internal_Rela *rel;
2687 bfd_vma relocation;
2688 {
2689 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2690 contents, rel->r_offset, relocation,
2691 rel->r_addend);
2692 }
2693
2694 \f
2695 /* Relocate an FRV ELF section.
2696
2697 The RELOCATE_SECTION function is called by the new ELF backend linker
2698 to handle the relocations for a section.
2699
2700 The relocs are always passed as Rela structures; if the section
2701 actually uses Rel structures, the r_addend field will always be
2702 zero.
2703
2704 This function is responsible for adjusting the section contents as
2705 necessary, and (if using Rela relocs and generating a relocatable
2706 output file) adjusting the reloc addend as necessary.
2707
2708 This function does not have to worry about setting the reloc
2709 address or the reloc symbol index.
2710
2711 LOCAL_SYMS is a pointer to the swapped in local symbols.
2712
2713 LOCAL_SECTIONS is an array giving the section in the input file
2714 corresponding to the st_shndx field of each local symbol.
2715
2716 The global hash table entry for the global symbols can be found
2717 via elf_sym_hashes (input_bfd).
2718
2719 When generating relocatable output, this function must handle
2720 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2721 going to be the section symbol corresponding to the output
2722 section, which means that the addend must be adjusted
2723 accordingly. */
2724
2725 static bfd_boolean
2726 elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
2727 contents, relocs, local_syms, local_sections)
2728 bfd *output_bfd ATTRIBUTE_UNUSED;
2729 struct bfd_link_info *info;
2730 bfd *input_bfd;
2731 asection *input_section;
2732 bfd_byte *contents;
2733 Elf_Internal_Rela *relocs;
2734 Elf_Internal_Sym *local_syms;
2735 asection **local_sections;
2736 {
2737 Elf_Internal_Shdr *symtab_hdr;
2738 struct elf_link_hash_entry **sym_hashes;
2739 Elf_Internal_Rela *rel;
2740 Elf_Internal_Rela *relend;
2741 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2742 check_segment[2];
2743 int silence_segment_error = !(info->shared || info->pie);
2744 unsigned long insn;
2745
2746 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2747 sym_hashes = elf_sym_hashes (input_bfd);
2748 relend = relocs + input_section->reloc_count;
2749
2750 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2751 input_section->output_section);
2752 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2753 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2754 frvfdpic_got_section (info)
2755 ->output_section);
2756 else
2757 got_segment = -1;
2758 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2759 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2760 frvfdpic_gotfixup_section (info)
2761 ->output_section);
2762 else
2763 gprel_segment = -1;
2764 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2765 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2766 frvfdpic_plt_section (info)
2767 ->output_section);
2768 else
2769 plt_segment = -1;
2770 if (elf_hash_table (info)->tls_sec)
2771 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2772 elf_hash_table (info)->tls_sec);
2773 else
2774 tls_segment = -1;
2775
2776 for (rel = relocs; rel < relend; rel ++)
2777 {
2778 reloc_howto_type *howto;
2779 unsigned long r_symndx;
2780 Elf_Internal_Sym *sym;
2781 asection *sec;
2782 struct elf_link_hash_entry *h;
2783 bfd_vma relocation;
2784 bfd_reloc_status_type r;
2785 const char * name = NULL;
2786 int r_type;
2787 asection *osec;
2788 struct frvfdpic_relocs_info *picrel;
2789 bfd_vma orig_addend = rel->r_addend;
2790
2791 r_type = ELF32_R_TYPE (rel->r_info);
2792
2793 if ( r_type == R_FRV_GNU_VTINHERIT
2794 || r_type == R_FRV_GNU_VTENTRY)
2795 continue;
2796
2797 r_symndx = ELF32_R_SYM (rel->r_info);
2798 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2799 h = NULL;
2800 sym = NULL;
2801 sec = NULL;
2802
2803 if (r_symndx < symtab_hdr->sh_info)
2804 {
2805 sym = local_syms + r_symndx;
2806 osec = sec = local_sections [r_symndx];
2807 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2808
2809 name = bfd_elf_string_from_elf_section
2810 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2811 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
2812 }
2813 else
2814 {
2815 bfd_boolean warned;
2816 bfd_boolean unresolved_reloc;
2817
2818 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2819 r_symndx, symtab_hdr, sym_hashes,
2820 h, sec, relocation,
2821 unresolved_reloc, warned);
2822 osec = sec;
2823 }
2824
2825 if (sec != NULL && elf_discarded_section (sec))
2826 {
2827 /* For relocs against symbols from removed linkonce sections,
2828 or sections discarded by a linker script, we just want the
2829 section contents zeroed. Avoid any special processing. */
2830 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2831 rel->r_info = 0;
2832 rel->r_addend = 0;
2833 continue;
2834 }
2835
2836 if (info->relocatable)
2837 continue;
2838
2839 if (r_type != R_FRV_TLSMOFF
2840 && h != NULL
2841 && (h->root.type == bfd_link_hash_defined
2842 || h->root.type == bfd_link_hash_defweak)
2843 && !FRVFDPIC_SYM_LOCAL (info, h))
2844 {
2845 osec = sec = NULL;
2846 relocation = 0;
2847 }
2848
2849 switch (r_type)
2850 {
2851 case R_FRV_LABEL24:
2852 case R_FRV_32:
2853 if (! IS_FDPIC (output_bfd))
2854 goto non_fdpic;
2855
2856 case R_FRV_GOT12:
2857 case R_FRV_GOTHI:
2858 case R_FRV_GOTLO:
2859 case R_FRV_FUNCDESC_GOT12:
2860 case R_FRV_FUNCDESC_GOTHI:
2861 case R_FRV_FUNCDESC_GOTLO:
2862 case R_FRV_GOTOFF12:
2863 case R_FRV_GOTOFFHI:
2864 case R_FRV_GOTOFFLO:
2865 case R_FRV_FUNCDESC_GOTOFF12:
2866 case R_FRV_FUNCDESC_GOTOFFHI:
2867 case R_FRV_FUNCDESC_GOTOFFLO:
2868 case R_FRV_FUNCDESC:
2869 case R_FRV_FUNCDESC_VALUE:
2870 case R_FRV_GETTLSOFF:
2871 case R_FRV_TLSDESC_VALUE:
2872 case R_FRV_GOTTLSDESC12:
2873 case R_FRV_GOTTLSDESCHI:
2874 case R_FRV_GOTTLSDESCLO:
2875 case R_FRV_TLSMOFF12:
2876 case R_FRV_TLSMOFFHI:
2877 case R_FRV_TLSMOFFLO:
2878 case R_FRV_GOTTLSOFF12:
2879 case R_FRV_GOTTLSOFFHI:
2880 case R_FRV_GOTTLSOFFLO:
2881 case R_FRV_TLSOFF:
2882 case R_FRV_TLSDESC_RELAX:
2883 case R_FRV_GETTLSOFF_RELAX:
2884 case R_FRV_TLSOFF_RELAX:
2885 case R_FRV_TLSMOFF:
2886 if (h != NULL)
2887 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2888 (info), input_bfd, h,
2889 orig_addend, INSERT);
2890 else
2891 /* In order to find the entry we created before, we must
2892 use the original addend, not the one that may have been
2893 modified by _bfd_elf_rela_local_sym(). */
2894 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2895 (info), input_bfd, r_symndx,
2896 orig_addend, INSERT);
2897 if (! picrel)
2898 return FALSE;
2899
2900 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2901 osec, sym,
2902 rel->r_addend))
2903 {
2904 (*_bfd_error_handler)
2905 (_("%B(%A+0x%x): relocation to `%s+%x' may have caused the error above"),
2906 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2907 return FALSE;
2908 }
2909
2910 break;
2911
2912 default:
2913 non_fdpic:
2914 picrel = NULL;
2915 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
2916 {
2917 info->callbacks->warning
2918 (info, _("relocation references symbol not defined in the module"),
2919 name, input_bfd, input_section, rel->r_offset);
2920 return FALSE;
2921 }
2922 break;
2923 }
2924
2925 switch (r_type)
2926 {
2927 case R_FRV_GETTLSOFF:
2928 case R_FRV_TLSDESC_VALUE:
2929 case R_FRV_GOTTLSDESC12:
2930 case R_FRV_GOTTLSDESCHI:
2931 case R_FRV_GOTTLSDESCLO:
2932 case R_FRV_TLSMOFF12:
2933 case R_FRV_TLSMOFFHI:
2934 case R_FRV_TLSMOFFLO:
2935 case R_FRV_GOTTLSOFF12:
2936 case R_FRV_GOTTLSOFFHI:
2937 case R_FRV_GOTTLSOFFLO:
2938 case R_FRV_TLSOFF:
2939 case R_FRV_TLSDESC_RELAX:
2940 case R_FRV_GETTLSOFF_RELAX:
2941 case R_FRV_TLSOFF_RELAX:
2942 case R_FRV_TLSMOFF:
2943 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2944 relocation += tls_biased_base (info);
2945 break;
2946
2947 default:
2948 break;
2949 }
2950
2951 /* Try to apply TLS relaxations. */
2952 if (1)
2953 switch (r_type)
2954 {
2955
2956 #define LOCAL_EXEC_P(info, picrel) \
2957 ((info)->executable \
2958 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2959 #define INITIAL_EXEC_P(info, picrel) \
2960 (((info)->executable || (info)->flags & DF_STATIC_TLS) \
2961 && (picrel)->tlsoff_entry)
2962
2963 #define IN_RANGE_FOR_OFST12_P(value) \
2964 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2965 #define IN_RANGE_FOR_SETLOS_P(value) \
2966 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2967 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2968 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2969
2970 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2971 (LOCAL_EXEC_P ((info), (picrel)) \
2972 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2973 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2974 (INITIAL_EXEC_P ((info), (picrel)) \
2975 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2976
2977 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2978 (LOCAL_EXEC_P ((info), (picrel)))
2979 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2980 (INITIAL_EXEC_P ((info), (picrel)))
2981
2982 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2983 (LOCAL_EXEC_P ((info), (picrel)) \
2984 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2985
2986 case R_FRV_GETTLSOFF:
2987 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2988
2989 /* Is this a call instruction? */
2990 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2991 {
2992 r = info->callbacks->warning
2993 (info,
2994 _("R_FRV_GETTLSOFF not applied to a call instruction"),
2995 name, input_bfd, input_section, rel->r_offset);
2996 return FALSE;
2997 }
2998
2999 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
3000 relocation + rel->r_addend))
3001 {
3002 /* Replace the call instruction (except the packing bit)
3003 with setlos #tlsmofflo(symbol+offset), gr9. */
3004 insn &= (unsigned long)0x80000000;
3005 insn |= (unsigned long)0x12fc0000;
3006 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3007
3008 r_type = R_FRV_TLSMOFFLO;
3009 howto = elf32_frv_howto_table + r_type;
3010 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3011 }
3012
3013 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
3014 {
3015 /* Replace the call instruction (except the packing bit)
3016 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
3017 insn &= (unsigned long)0x80000000;
3018 insn |= (unsigned long)0x12c8f000;
3019 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3020
3021 r_type = R_FRV_GOTTLSOFF12;
3022 howto = elf32_frv_howto_table + r_type;
3023 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3024 }
3025
3026 break;
3027
3028 case R_FRV_GOTTLSDESC12:
3029 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3030
3031 /* Is this an lddi instruction? */
3032 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
3033 {
3034 r = info->callbacks->warning
3035 (info,
3036 _("R_FRV_GOTTLSDESC12 not applied to an lddi instruction"),
3037 name, input_bfd, input_section, rel->r_offset);
3038 return FALSE;
3039 }
3040
3041 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3042 relocation + rel->r_addend)
3043 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3044 info))
3045 {
3046 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3047 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3048 Preserve the packing bit. */
3049 insn = (insn & (unsigned long)0x80000000)
3050 | ((insn + (unsigned long)0x02000000)
3051 & (unsigned long)0x7e000000);
3052 insn |= (unsigned long)0x00fc0000;
3053 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3054
3055 r_type = R_FRV_TLSMOFFLO;
3056 howto = elf32_frv_howto_table + r_type;
3057 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3058 }
3059
3060 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3061 relocation + rel->r_addend))
3062 {
3063 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3064 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3065 Preserve the packing bit. */
3066 insn = (insn & (unsigned long)0x80000000)
3067 | ((insn + (unsigned long)0x02000000)
3068 & (unsigned long)0x7e000000);
3069 insn |= (unsigned long)0x00f80000;
3070 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3071
3072 r_type = R_FRV_TLSMOFFHI;
3073 howto = elf32_frv_howto_table + r_type;
3074 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3075 }
3076
3077 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3078 {
3079 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3080 with ldi @(grB, #gottlsoff12(symbol+offset),
3081 gr<C+1>. Preserve the packing bit. If gottlsoff12
3082 overflows, we'll error out, but that's sort-of ok,
3083 since we'd started with gottlsdesc12, that's actually
3084 more demanding. Compiling with -fPIE instead of
3085 -fpie would fix it; linking with --relax should fix
3086 it as well. */
3087 insn = (insn & (unsigned long)0x80cbf000)
3088 | ((insn + (unsigned long)0x02000000)
3089 & (unsigned long)0x7e000000);
3090 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3091
3092 r_type = R_FRV_GOTTLSOFF12;
3093 howto = elf32_frv_howto_table + r_type;
3094 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3095 }
3096
3097 break;
3098
3099 case R_FRV_GOTTLSDESCHI:
3100 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3101
3102 /* Is this a sethi instruction? */
3103 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3104 {
3105 r = info->callbacks->warning
3106 (info,
3107 _("R_FRV_GOTTLSDESCHI not applied to a sethi instruction"),
3108 name, input_bfd, input_section, rel->r_offset);
3109 return FALSE;
3110 }
3111
3112 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3113 relocation + rel->r_addend)
3114 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3115 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3116 {
3117 /* Replace sethi with a nop. Preserve the packing bit. */
3118 insn &= (unsigned long)0x80000000;
3119 insn |= (unsigned long)0x00880000;
3120 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3121
3122 /* Nothing to relocate. */
3123 continue;
3124 }
3125
3126 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3127 {
3128 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3129 r_type = R_FRV_GOTTLSOFFHI;
3130 howto = elf32_frv_howto_table + r_type;
3131 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3132 }
3133
3134 break;
3135
3136 case R_FRV_GOTTLSDESCLO:
3137 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3138
3139 /* Is this a setlo or setlos instruction? */
3140 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3141 {
3142 r = info->callbacks->warning
3143 (info,
3144 _("R_FRV_GOTTLSDESCLO"
3145 " not applied to a setlo or setlos instruction"),
3146 name, input_bfd, input_section, rel->r_offset);
3147 return FALSE;
3148 }
3149
3150 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3151 relocation + rel->r_addend)
3152 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3153 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3154 {
3155 /* Replace setlo/setlos with a nop. Preserve the
3156 packing bit. */
3157 insn &= (unsigned long)0x80000000;
3158 insn |= (unsigned long)0x00880000;
3159 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3160
3161 /* Nothing to relocate. */
3162 continue;
3163 }
3164
3165 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3166 {
3167 /* If the corresponding sethi (if it exists) decayed
3168 to a nop, make sure this becomes (or already is) a
3169 setlos, not setlo. */
3170 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3171 {
3172 insn |= (unsigned long)0x00080000;
3173 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3174 }
3175
3176 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3177 r_type = R_FRV_GOTTLSOFFLO;
3178 howto = elf32_frv_howto_table + r_type;
3179 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3180 }
3181
3182 break;
3183
3184 case R_FRV_TLSDESC_RELAX:
3185 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3186
3187 /* Is this an ldd instruction? */
3188 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3189 {
3190 r = info->callbacks->warning
3191 (info,
3192 _("R_FRV_TLSDESC_RELAX not applied to an ldd instruction"),
3193 name, input_bfd, input_section, rel->r_offset);
3194 return FALSE;
3195 }
3196
3197 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3198 relocation + rel->r_addend)
3199 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3200 info))
3201 {
3202 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3203 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3204 Preserve the packing bit. */
3205 insn = (insn & (unsigned long)0x80000000)
3206 | ((insn + (unsigned long)0x02000000)
3207 & (unsigned long)0x7e000000);
3208 insn |= (unsigned long)0x00fc0000;
3209 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3210
3211 r_type = R_FRV_TLSMOFFLO;
3212 howto = elf32_frv_howto_table + r_type;
3213 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3214 }
3215
3216 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3217 relocation + rel->r_addend))
3218 {
3219 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3220 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3221 Preserve the packing bit. */
3222 insn = (insn & (unsigned long)0x80000000)
3223 | ((insn + (unsigned long)0x02000000)
3224 & (unsigned long)0x7e000000);
3225 insn |= (unsigned long)0x00f80000;
3226 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3227
3228 r_type = R_FRV_TLSMOFFHI;
3229 howto = elf32_frv_howto_table + r_type;
3230 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3231 }
3232
3233 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3234 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3235 {
3236 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3237 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3238 Preserve the packing bit. */
3239 insn = (insn & (unsigned long)0x8003f000)
3240 | (unsigned long)0x00c80000
3241 | ((insn + (unsigned long)0x02000000)
3242 & (unsigned long)0x7e000000);
3243 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3244
3245 r_type = R_FRV_GOTTLSOFF12;
3246 howto = elf32_frv_howto_table + r_type;
3247 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3248 }
3249
3250 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3251 {
3252 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3253 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3254 Preserve the packing bit. */
3255 insn = (insn & (unsigned long)0x81ffffbf)
3256 | ((insn + (unsigned long)0x02000000)
3257 & (unsigned long)0x7e000000);
3258 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3259
3260 /* #tlsoff(symbol+offset) is just a relaxation
3261 annotation, so there's nothing left to
3262 relocate. */
3263 continue;
3264 }
3265
3266 break;
3267
3268 case R_FRV_GETTLSOFF_RELAX:
3269 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3270
3271 /* Is this a calll or callil instruction? */
3272 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3273 {
3274 r = info->callbacks->warning
3275 (info,
3276 _("R_FRV_GETTLSOFF_RELAX"
3277 " not applied to a calll instruction"),
3278 name, input_bfd, input_section, rel->r_offset);
3279 return FALSE;
3280 }
3281
3282 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3283 relocation + rel->r_addend)
3284 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3285 info))
3286 {
3287 /* Replace calll with a nop. Preserve the packing bit. */
3288 insn &= (unsigned long)0x80000000;
3289 insn |= (unsigned long)0x00880000;
3290 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3291
3292 /* Nothing to relocate. */
3293 continue;
3294 }
3295
3296 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3297 relocation + rel->r_addend))
3298 {
3299 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3300 Preserve the packing bit. */
3301 insn &= (unsigned long)0x80000000;
3302 insn |= (unsigned long)0x12f40000;
3303 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3304
3305 r_type = R_FRV_TLSMOFFLO;
3306 howto = elf32_frv_howto_table + r_type;
3307 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3308 }
3309
3310 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3311 {
3312 /* Replace calll with a nop. Preserve the packing bit. */
3313 insn &= (unsigned long)0x80000000;
3314 insn |= (unsigned long)0x00880000;
3315 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3316
3317 /* Nothing to relocate. */
3318 continue;
3319 }
3320
3321 break;
3322
3323 case R_FRV_GOTTLSOFF12:
3324 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3325
3326 /* Is this an ldi instruction? */
3327 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3328 {
3329 r = info->callbacks->warning
3330 (info,
3331 _("R_FRV_GOTTLSOFF12 not applied to an ldi instruction"),
3332 name, input_bfd, input_section, rel->r_offset);
3333 return FALSE;
3334 }
3335
3336 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3337 relocation + rel->r_addend))
3338 {
3339 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3340 with setlos #tlsmofflo(symbol+offset), grC.
3341 Preserve the packing bit. */
3342 insn &= (unsigned long)0xfe000000;
3343 insn |= (unsigned long)0x00fc0000;
3344 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3345
3346 r_type = R_FRV_TLSMOFFLO;
3347 howto = elf32_frv_howto_table + r_type;
3348 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3349 }
3350
3351 break;
3352
3353 case R_FRV_GOTTLSOFFHI:
3354 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3355
3356 /* Is this a sethi instruction? */
3357 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3358 {
3359 r = info->callbacks->warning
3360 (info,
3361 _("R_FRV_GOTTLSOFFHI not applied to a sethi instruction"),
3362 name, input_bfd, input_section, rel->r_offset);
3363 return FALSE;
3364 }
3365
3366 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3367 relocation + rel->r_addend)
3368 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3369 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3370 {
3371 /* Replace sethi with a nop. Preserve the packing bit. */
3372 insn &= (unsigned long)0x80000000;
3373 insn |= (unsigned long)0x00880000;
3374 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3375
3376 /* Nothing to relocate. */
3377 continue;
3378 }
3379
3380 break;
3381
3382 case R_FRV_GOTTLSOFFLO:
3383 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3384
3385 /* Is this a setlo or setlos instruction? */
3386 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3387 {
3388 r = info->callbacks->warning
3389 (info,
3390 _("R_FRV_GOTTLSOFFLO"
3391 " not applied to a setlo or setlos instruction"),
3392 name, input_bfd, input_section, rel->r_offset);
3393 return FALSE;
3394 }
3395
3396 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3397 relocation + rel->r_addend)
3398 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3399 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3400 {
3401 /* Replace setlo/setlos with a nop. Preserve the
3402 packing bit. */
3403 insn &= (unsigned long)0x80000000;
3404 insn |= (unsigned long)0x00880000;
3405 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3406
3407 /* Nothing to relocate. */
3408 continue;
3409 }
3410
3411 break;
3412
3413 case R_FRV_TLSOFF_RELAX:
3414 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3415
3416 /* Is this an ld instruction? */
3417 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3418 {
3419 r = info->callbacks->warning
3420 (info,
3421 _("R_FRV_TLSOFF_RELAX not applied to an ld instruction"),
3422 name, input_bfd, input_section, rel->r_offset);
3423 return FALSE;
3424 }
3425
3426 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3427 relocation + rel->r_addend))
3428 {
3429 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3430 with setlos #tlsmofflo(symbol+offset), grC.
3431 Preserve the packing bit. */
3432 insn &= (unsigned long)0xfe000000;
3433 insn |= (unsigned long)0x00fc0000;
3434 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3435
3436 r_type = R_FRV_TLSMOFFLO;
3437 howto = elf32_frv_howto_table + r_type;
3438 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3439 }
3440
3441 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3442 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3443 {
3444 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3445 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3446 Preserve the packing bit. */
3447 insn = (insn & (unsigned long)0xfe03f000)
3448 | (unsigned long)0x00c80000;;
3449 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3450
3451 r_type = R_FRV_GOTTLSOFF12;
3452 howto = elf32_frv_howto_table + r_type;
3453 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3454 }
3455
3456 break;
3457
3458 case R_FRV_TLSMOFFHI:
3459 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3460
3461 /* Is this a sethi instruction? */
3462 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3463 {
3464 r = info->callbacks->warning
3465 (info,
3466 _("R_FRV_TLSMOFFHI not applied to a sethi instruction"),
3467 name, input_bfd, input_section, rel->r_offset);
3468 return FALSE;
3469 }
3470
3471 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3472 info))
3473 {
3474 /* Replace sethi with a nop. Preserve the packing bit. */
3475 insn &= (unsigned long)0x80000000;
3476 insn |= (unsigned long)0x00880000;
3477 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3478
3479 /* Nothing to relocate. */
3480 continue;
3481 }
3482
3483 break;
3484
3485 case R_FRV_TLSMOFFLO:
3486 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3487
3488 /* Is this a setlo or setlos instruction? */
3489 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3490 {
3491 r = info->callbacks->warning
3492 (info,
3493 _("R_FRV_TLSMOFFLO"
3494 " not applied to a setlo or setlos instruction"),
3495 name, input_bfd, input_section, rel->r_offset);
3496 return FALSE;
3497 }
3498
3499 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3500 info))
3501 /* If the corresponding sethi (if it exists) decayed
3502 to a nop, make sure this becomes (or already is) a
3503 setlos, not setlo. */
3504 {
3505 insn |= (unsigned long)0x00080000;
3506 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3507 }
3508
3509 break;
3510
3511 /*
3512 There's nothing to relax in these:
3513 R_FRV_TLSDESC_VALUE
3514 R_FRV_TLSOFF
3515 R_FRV_TLSMOFF12
3516 R_FRV_TLSMOFFHI
3517 R_FRV_TLSMOFFLO
3518 R_FRV_TLSMOFF
3519 */
3520
3521 default:
3522 break;
3523 }
3524
3525 switch (r_type)
3526 {
3527 case R_FRV_LABEL24:
3528 check_segment[0] = isec_segment;
3529 if (! IS_FDPIC (output_bfd))
3530 check_segment[1] = isec_segment;
3531 else if (picrel->plt)
3532 {
3533 relocation = frvfdpic_plt_section (info)->output_section->vma
3534 + frvfdpic_plt_section (info)->output_offset
3535 + picrel->plt_entry;
3536 check_segment[1] = plt_segment;
3537 }
3538 /* We don't want to warn on calls to undefined weak symbols,
3539 as calls to them must be protected by non-NULL tests
3540 anyway, and unprotected calls would invoke undefined
3541 behavior. */
3542 else if (picrel->symndx == -1
3543 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3544 check_segment[1] = check_segment[0];
3545 else
3546 check_segment[1] = sec
3547 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3548 : (unsigned)-1;
3549 break;
3550
3551 case R_FRV_GOT12:
3552 case R_FRV_GOTHI:
3553 case R_FRV_GOTLO:
3554 relocation = picrel->got_entry;
3555 check_segment[0] = check_segment[1] = got_segment;
3556 break;
3557
3558 case R_FRV_FUNCDESC_GOT12:
3559 case R_FRV_FUNCDESC_GOTHI:
3560 case R_FRV_FUNCDESC_GOTLO:
3561 relocation = picrel->fdgot_entry;
3562 check_segment[0] = check_segment[1] = got_segment;
3563 break;
3564
3565 case R_FRV_GOTOFFHI:
3566 case R_FRV_GOTOFF12:
3567 case R_FRV_GOTOFFLO:
3568 relocation -= frvfdpic_got_section (info)->output_section->vma
3569 + frvfdpic_got_section (info)->output_offset
3570 + frvfdpic_got_initial_offset (info);
3571 check_segment[0] = got_segment;
3572 check_segment[1] = sec
3573 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3574 : (unsigned)-1;
3575 break;
3576
3577 case R_FRV_FUNCDESC_GOTOFF12:
3578 case R_FRV_FUNCDESC_GOTOFFHI:
3579 case R_FRV_FUNCDESC_GOTOFFLO:
3580 relocation = picrel->fd_entry;
3581 check_segment[0] = check_segment[1] = got_segment;
3582 break;
3583
3584 case R_FRV_FUNCDESC:
3585 {
3586 int dynindx;
3587 bfd_vma addend = rel->r_addend;
3588
3589 if (! (h && h->root.type == bfd_link_hash_undefweak
3590 && FRVFDPIC_SYM_LOCAL (info, h)))
3591 {
3592 /* If the symbol is dynamic and there may be dynamic
3593 symbol resolution because we are or are linked with a
3594 shared library, emit a FUNCDESC relocation such that
3595 the dynamic linker will allocate the function
3596 descriptor. If the symbol needs a non-local function
3597 descriptor but binds locally (e.g., its visibility is
3598 protected, emit a dynamic relocation decayed to
3599 section+offset. */
3600 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3601 && FRVFDPIC_SYM_LOCAL (info, h)
3602 && !(info->executable && !info->pie))
3603 {
3604 dynindx = elf_section_data (h->root.u.def.section
3605 ->output_section)->dynindx;
3606 addend += h->root.u.def.section->output_offset
3607 + h->root.u.def.value;
3608 }
3609 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3610 {
3611 if (addend)
3612 {
3613 info->callbacks->warning
3614 (info, _("R_FRV_FUNCDESC references dynamic symbol with nonzero addend"),
3615 name, input_bfd, input_section, rel->r_offset);
3616 return FALSE;
3617 }
3618 dynindx = h->dynindx;
3619 }
3620 else
3621 {
3622 /* Otherwise, we know we have a private function
3623 descriptor, so reference it directly. */
3624 BFD_ASSERT (picrel->privfd);
3625 r_type = R_FRV_32;
3626 dynindx = elf_section_data (frvfdpic_got_section (info)
3627 ->output_section)->dynindx;
3628 addend = frvfdpic_got_section (info)->output_offset
3629 + frvfdpic_got_initial_offset (info)
3630 + picrel->fd_entry;
3631 }
3632
3633 /* If there is room for dynamic symbol resolution, emit
3634 the dynamic relocation. However, if we're linking an
3635 executable at a fixed location, we won't have emitted a
3636 dynamic symbol entry for the got section, so idx will
3637 be zero, which means we can and should compute the
3638 address of the private descriptor ourselves. */
3639 if (info->executable && !info->pie
3640 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3641 {
3642 addend += frvfdpic_got_section (info)->output_section->vma;
3643 if ((bfd_get_section_flags (output_bfd,
3644 input_section->output_section)
3645 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3646 {
3647 bfd_vma offset;
3648
3649 if (_frvfdpic_osec_readonly_p (output_bfd,
3650 input_section
3651 ->output_section))
3652 {
3653 info->callbacks->warning
3654 (info,
3655 _("cannot emit fixups in read-only section"),
3656 name, input_bfd, input_section, rel->r_offset);
3657 return FALSE;
3658 }
3659
3660 offset = _bfd_elf_section_offset
3661 (output_bfd, info,
3662 input_section, rel->r_offset);
3663
3664 if (offset != (bfd_vma)-1)
3665 _frvfdpic_add_rofixup (output_bfd,
3666 frvfdpic_gotfixup_section
3667 (info),
3668 offset + input_section
3669 ->output_section->vma
3670 + input_section->output_offset,
3671 picrel);
3672 }
3673 }
3674 else if ((bfd_get_section_flags (output_bfd,
3675 input_section->output_section)
3676 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3677 {
3678 bfd_vma offset;
3679
3680 if (_frvfdpic_osec_readonly_p (output_bfd,
3681 input_section
3682 ->output_section))
3683 {
3684 info->callbacks->warning
3685 (info,
3686 _("cannot emit dynamic relocations in read-only section"),
3687 name, input_bfd, input_section, rel->r_offset);
3688 return FALSE;
3689 }
3690
3691 offset = _bfd_elf_section_offset
3692 (output_bfd, info,
3693 input_section, rel->r_offset);
3694
3695 if (offset != (bfd_vma)-1)
3696 _frvfdpic_add_dyn_reloc (output_bfd,
3697 frvfdpic_gotrel_section (info),
3698 offset + input_section
3699 ->output_section->vma
3700 + input_section->output_offset,
3701 r_type, dynindx, addend, picrel);
3702 }
3703 else
3704 addend += frvfdpic_got_section (info)->output_section->vma;
3705 }
3706
3707 /* We want the addend in-place because dynamic
3708 relocations are REL. Setting relocation to it should
3709 arrange for it to be installed. */
3710 relocation = addend - rel->r_addend;
3711 }
3712 check_segment[0] = check_segment[1] = got_segment;
3713 break;
3714
3715 case R_FRV_32:
3716 if (! IS_FDPIC (output_bfd))
3717 {
3718 check_segment[0] = check_segment[1] = -1;
3719 break;
3720 }
3721 /* Fall through. */
3722 case R_FRV_FUNCDESC_VALUE:
3723 {
3724 int dynindx;
3725 bfd_vma addend = rel->r_addend;
3726
3727 /* If the symbol is dynamic but binds locally, use
3728 section+offset. */
3729 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3730 {
3731 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3732 {
3733 info->callbacks->warning
3734 (info, _("R_FRV_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
3735 name, input_bfd, input_section, rel->r_offset);
3736 return FALSE;
3737 }
3738 dynindx = h->dynindx;
3739 }
3740 else
3741 {
3742 if (h)
3743 addend += h->root.u.def.value;
3744 else
3745 addend += sym->st_value;
3746 if (osec)
3747 addend += osec->output_offset;
3748 if (osec && osec->output_section
3749 && ! bfd_is_abs_section (osec->output_section)
3750 && ! bfd_is_und_section (osec->output_section))
3751 dynindx = elf_section_data (osec->output_section)->dynindx;
3752 else
3753 dynindx = 0;
3754 }
3755
3756 /* If we're linking an executable at a fixed address, we
3757 can omit the dynamic relocation as long as the symbol
3758 is defined in the current link unit (which is implied
3759 by its output section not being NULL). */
3760 if (info->executable && !info->pie
3761 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3762 {
3763 if (osec)
3764 addend += osec->output_section->vma;
3765 if (IS_FDPIC (input_bfd)
3766 && (bfd_get_section_flags (output_bfd,
3767 input_section->output_section)
3768 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3769 {
3770 if (_frvfdpic_osec_readonly_p (output_bfd,
3771 input_section
3772 ->output_section))
3773 {
3774 info->callbacks->warning
3775 (info,
3776 _("cannot emit fixups in read-only section"),
3777 name, input_bfd, input_section, rel->r_offset);
3778 return FALSE;
3779 }
3780 if (!h || h->root.type != bfd_link_hash_undefweak)
3781 {
3782 bfd_vma offset = _bfd_elf_section_offset
3783 (output_bfd, info,
3784 input_section, rel->r_offset);
3785
3786 if (offset != (bfd_vma)-1)
3787 {
3788 _frvfdpic_add_rofixup (output_bfd,
3789 frvfdpic_gotfixup_section
3790 (info),
3791 offset + input_section
3792 ->output_section->vma
3793 + input_section->output_offset,
3794 picrel);
3795 if (r_type == R_FRV_FUNCDESC_VALUE)
3796 _frvfdpic_add_rofixup
3797 (output_bfd,
3798 frvfdpic_gotfixup_section (info),
3799 offset
3800 + input_section->output_section->vma
3801 + input_section->output_offset + 4, picrel);
3802 }
3803 }
3804 }
3805 }
3806 else
3807 {
3808 if ((bfd_get_section_flags (output_bfd,
3809 input_section->output_section)
3810 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3811 {
3812 bfd_vma offset;
3813
3814 if (_frvfdpic_osec_readonly_p (output_bfd,
3815 input_section
3816 ->output_section))
3817 {
3818 info->callbacks->warning
3819 (info,
3820 _("cannot emit dynamic relocations in read-only section"),
3821 name, input_bfd, input_section, rel->r_offset);
3822 return FALSE;
3823 }
3824
3825 offset = _bfd_elf_section_offset
3826 (output_bfd, info,
3827 input_section, rel->r_offset);
3828
3829 if (offset != (bfd_vma)-1)
3830 _frvfdpic_add_dyn_reloc (output_bfd,
3831 frvfdpic_gotrel_section (info),
3832 offset + input_section
3833 ->output_section->vma
3834 + input_section->output_offset,
3835 r_type, dynindx, addend, picrel);
3836 }
3837 else if (osec)
3838 addend += osec->output_section->vma;
3839 /* We want the addend in-place because dynamic
3840 relocations are REL. Setting relocation to it
3841 should arrange for it to be installed. */
3842 relocation = addend - rel->r_addend;
3843 }
3844
3845 if (r_type == R_FRV_FUNCDESC_VALUE)
3846 {
3847 /* If we've omitted the dynamic relocation, just emit
3848 the fixed addresses of the symbol and of the local
3849 GOT base offset. */
3850 if (info->executable && !info->pie
3851 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3852 bfd_put_32 (output_bfd,
3853 frvfdpic_got_section (info)->output_section->vma
3854 + frvfdpic_got_section (info)->output_offset
3855 + frvfdpic_got_initial_offset (info),
3856 contents + rel->r_offset + 4);
3857 else
3858 /* A function descriptor used for lazy or local
3859 resolving is initialized such that its high word
3860 contains the output section index in which the
3861 PLT entries are located, and the low word
3862 contains the offset of the lazy PLT entry entry
3863 point into that section. */
3864 bfd_put_32 (output_bfd,
3865 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3866 ? 0
3867 : _frvfdpic_osec_to_segment (output_bfd,
3868 sec
3869 ->output_section),
3870 contents + rel->r_offset + 4);
3871 }
3872 }
3873 check_segment[0] = check_segment[1] = got_segment;
3874 break;
3875
3876 case R_FRV_GPREL12:
3877 case R_FRV_GPRELU12:
3878 case R_FRV_GPREL32:
3879 case R_FRV_GPRELHI:
3880 case R_FRV_GPRELLO:
3881 check_segment[0] = gprel_segment;
3882 check_segment[1] = sec
3883 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3884 : (unsigned)-1;
3885 break;
3886
3887 case R_FRV_GETTLSOFF:
3888 relocation = frvfdpic_plt_section (info)->output_section->vma
3889 + frvfdpic_plt_section (info)->output_offset
3890 + picrel->tlsplt_entry;
3891 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3892 && picrel->tlsdesc_entry);
3893 check_segment[0] = isec_segment;
3894 check_segment[1] = plt_segment;
3895 break;
3896
3897 case R_FRV_GOTTLSDESC12:
3898 case R_FRV_GOTTLSDESCHI:
3899 case R_FRV_GOTTLSDESCLO:
3900 BFD_ASSERT (picrel->tlsdesc_entry);
3901 relocation = picrel->tlsdesc_entry;
3902 check_segment[0] = tls_segment;
3903 check_segment[1] = sec
3904 && ! bfd_is_abs_section (sec)
3905 && ! bfd_is_und_section (sec)
3906 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3907 : tls_segment;
3908 break;
3909
3910 case R_FRV_TLSMOFF12:
3911 case R_FRV_TLSMOFFHI:
3912 case R_FRV_TLSMOFFLO:
3913 case R_FRV_TLSMOFF:
3914 check_segment[0] = tls_segment;
3915 if (! sec)
3916 check_segment[1] = -1;
3917 else if (bfd_is_abs_section (sec)
3918 || bfd_is_und_section (sec))
3919 {
3920 relocation = 0;
3921 check_segment[1] = tls_segment;
3922 }
3923 else if (sec->output_section)
3924 {
3925 relocation -= tls_biased_base (info);
3926 check_segment[1] =
3927 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3928 }
3929 else
3930 check_segment[1] = -1;
3931 break;
3932
3933 case R_FRV_GOTTLSOFF12:
3934 case R_FRV_GOTTLSOFFHI:
3935 case R_FRV_GOTTLSOFFLO:
3936 BFD_ASSERT (picrel->tlsoff_entry);
3937 relocation = picrel->tlsoff_entry;
3938 check_segment[0] = tls_segment;
3939 check_segment[1] = sec
3940 && ! bfd_is_abs_section (sec)
3941 && ! bfd_is_und_section (sec)
3942 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3943 : tls_segment;
3944 break;
3945
3946 case R_FRV_TLSDESC_VALUE:
3947 case R_FRV_TLSOFF:
3948 /* These shouldn't be present in input object files. */
3949 check_segment[0] = check_segment[1] = isec_segment;
3950 break;
3951
3952 case R_FRV_TLSDESC_RELAX:
3953 case R_FRV_GETTLSOFF_RELAX:
3954 case R_FRV_TLSOFF_RELAX:
3955 /* These are just annotations for relaxation, nothing to do
3956 here. */
3957 continue;
3958
3959 default:
3960 check_segment[0] = isec_segment;
3961 check_segment[1] = sec
3962 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3963 : (unsigned)-1;
3964 break;
3965 }
3966
3967 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3968 {
3969 /* If you take this out, remove the #error from fdpic-static-6.d
3970 in the ld testsuite. */
3971 /* This helps catch problems in GCC while we can't do more
3972 than static linking. The idea is to test whether the
3973 input file basename is crt0.o only once. */
3974 if (silence_segment_error == 1)
3975 silence_segment_error =
3976 (strlen (input_bfd->filename) == 6
3977 && strcmp (input_bfd->filename, "crt0.o") == 0)
3978 || (strlen (input_bfd->filename) > 6
3979 && strcmp (input_bfd->filename
3980 + strlen (input_bfd->filename) - 7,
3981 "/crt0.o") == 0)
3982 ? -1 : 0;
3983 if (!silence_segment_error
3984 /* We don't want duplicate errors for undefined
3985 symbols. */
3986 && !(picrel && picrel->symndx == -1
3987 && picrel->d.h->root.type == bfd_link_hash_undefined))
3988 {
3989 if (info->shared || info->pie)
3990 (*_bfd_error_handler)
3991 (_("%B(%A+0x%lx): reloc against `%s': %s"),
3992 input_bfd, input_section, (long)rel->r_offset, name,
3993 _("relocation references a different segment"));
3994 else
3995 info->callbacks->warning
3996 (info,
3997 _("relocation references a different segment"),
3998 name, input_bfd, input_section, rel->r_offset);
3999 }
4000 if (!silence_segment_error && (info->shared || info->pie))
4001 return FALSE;
4002 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
4003 }
4004
4005 switch (r_type)
4006 {
4007 case R_FRV_GOTOFFHI:
4008 case R_FRV_TLSMOFFHI:
4009 /* We need the addend to be applied before we shift the
4010 value right. */
4011 relocation += rel->r_addend;
4012 /* Fall through. */
4013 case R_FRV_GOTHI:
4014 case R_FRV_FUNCDESC_GOTHI:
4015 case R_FRV_FUNCDESC_GOTOFFHI:
4016 case R_FRV_GOTTLSOFFHI:
4017 case R_FRV_GOTTLSDESCHI:
4018 relocation >>= 16;
4019 /* Fall through. */
4020
4021 case R_FRV_GOTLO:
4022 case R_FRV_FUNCDESC_GOTLO:
4023 case R_FRV_GOTOFFLO:
4024 case R_FRV_FUNCDESC_GOTOFFLO:
4025 case R_FRV_GOTTLSOFFLO:
4026 case R_FRV_GOTTLSDESCLO:
4027 case R_FRV_TLSMOFFLO:
4028 relocation &= 0xffff;
4029 break;
4030
4031 default:
4032 break;
4033 }
4034
4035 switch (r_type)
4036 {
4037 case R_FRV_LABEL24:
4038 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
4039 break;
4040 /* Fall through. */
4041
4042 /* When referencing a GOT entry, a function descriptor or a
4043 PLT, we don't want the addend to apply to the reference,
4044 but rather to the referenced symbol. The actual entry
4045 will have already been created taking the addend into
4046 account, so cancel it out here. */
4047 case R_FRV_GOT12:
4048 case R_FRV_GOTHI:
4049 case R_FRV_GOTLO:
4050 case R_FRV_FUNCDESC_GOT12:
4051 case R_FRV_FUNCDESC_GOTHI:
4052 case R_FRV_FUNCDESC_GOTLO:
4053 case R_FRV_FUNCDESC_GOTOFF12:
4054 case R_FRV_FUNCDESC_GOTOFFHI:
4055 case R_FRV_FUNCDESC_GOTOFFLO:
4056 case R_FRV_GETTLSOFF:
4057 case R_FRV_GOTTLSDESC12:
4058 case R_FRV_GOTTLSDESCHI:
4059 case R_FRV_GOTTLSDESCLO:
4060 case R_FRV_GOTTLSOFF12:
4061 case R_FRV_GOTTLSOFFHI:
4062 case R_FRV_GOTTLSOFFLO:
4063 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
4064 here, since we do want to apply the addend to the others.
4065 Note that we've applied the addend to GOTOFFHI before we
4066 shifted it right. */
4067 case R_FRV_GOTOFFHI:
4068 case R_FRV_TLSMOFFHI:
4069 relocation -= rel->r_addend;
4070 break;
4071
4072 default:
4073 break;
4074 }
4075
4076 if (r_type == R_FRV_HI16)
4077 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
4078
4079 else if (r_type == R_FRV_LO16)
4080 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4081
4082 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4083 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4084 contents, relocation);
4085
4086 else if (r_type == R_FRV_GPREL12)
4087 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4088 contents, relocation);
4089
4090 else if (r_type == R_FRV_GPRELU12)
4091 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4092 contents, relocation);
4093
4094 else if (r_type == R_FRV_GPRELLO)
4095 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4096 contents, relocation);
4097
4098 else if (r_type == R_FRV_GPRELHI)
4099 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4100 contents, relocation);
4101
4102 else if (r_type == R_FRV_TLSOFF
4103 || r_type == R_FRV_TLSDESC_VALUE)
4104 r = bfd_reloc_notsupported;
4105
4106 else
4107 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4108 rel, relocation);
4109
4110 if (r != bfd_reloc_ok)
4111 {
4112 const char * msg = (const char *) NULL;
4113
4114 switch (r)
4115 {
4116 case bfd_reloc_overflow:
4117 r = info->callbacks->reloc_overflow
4118 (info, (h ? &h->root : NULL), name, howto->name,
4119 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4120 break;
4121
4122 case bfd_reloc_undefined:
4123 r = info->callbacks->undefined_symbol
4124 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4125 break;
4126
4127 case bfd_reloc_outofrange:
4128 msg = _("internal error: out of range error");
4129 break;
4130
4131 case bfd_reloc_notsupported:
4132 msg = _("internal error: unsupported relocation error");
4133 break;
4134
4135 case bfd_reloc_dangerous:
4136 msg = _("internal error: dangerous relocation");
4137 break;
4138
4139 default:
4140 msg = _("internal error: unknown error");
4141 break;
4142 }
4143
4144 if (msg)
4145 {
4146 (*_bfd_error_handler)
4147 (_("%B(%A+0x%lx): reloc against `%s': %s"),
4148 input_bfd, input_section, (long)rel->r_offset, name, msg);
4149 return FALSE;
4150 }
4151
4152 if (! r)
4153 return FALSE;
4154 }
4155 }
4156
4157 return TRUE;
4158 }
4159 \f
4160 /* Return the section that should be marked against GC for a given
4161 relocation. */
4162
4163 static asection *
4164 elf32_frv_gc_mark_hook (asection *sec,
4165 struct bfd_link_info *info,
4166 Elf_Internal_Rela *rel,
4167 struct elf_link_hash_entry *h,
4168 Elf_Internal_Sym *sym)
4169 {
4170 if (h != NULL)
4171 switch (ELF32_R_TYPE (rel->r_info))
4172 {
4173 case R_FRV_GNU_VTINHERIT:
4174 case R_FRV_GNU_VTENTRY:
4175 return NULL;
4176 }
4177
4178 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4179 }
4180 \f
4181 /* Hook called by the linker routine which adds symbols from an object
4182 file. We use it to put .comm items in .scomm, and not .comm. */
4183
4184 static bfd_boolean
4185 elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
4186 bfd *abfd;
4187 struct bfd_link_info *info;
4188 Elf_Internal_Sym *sym;
4189 const char **namep ATTRIBUTE_UNUSED;
4190 flagword *flagsp ATTRIBUTE_UNUSED;
4191 asection **secp;
4192 bfd_vma *valp;
4193 {
4194 if (sym->st_shndx == SHN_COMMON
4195 && !info->relocatable
4196 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4197 {
4198 /* Common symbols less than or equal to -G nn bytes are
4199 automatically put into .sbss. */
4200
4201 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4202
4203 if (scomm == NULL)
4204 {
4205 scomm = bfd_make_section_with_flags (abfd, ".scommon",
4206 (SEC_ALLOC
4207 | SEC_IS_COMMON
4208 | SEC_LINKER_CREATED));
4209 if (scomm == NULL)
4210 return FALSE;
4211 }
4212
4213 *secp = scomm;
4214 *valp = sym->st_size;
4215 }
4216
4217 return TRUE;
4218 }
4219
4220 /* We need dynamic symbols for every section, since segments can
4221 relocate independently. */
4222 static bfd_boolean
4223 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4224 struct bfd_link_info *info
4225 ATTRIBUTE_UNUSED,
4226 asection *p ATTRIBUTE_UNUSED)
4227 {
4228 switch (elf_section_data (p)->this_hdr.sh_type)
4229 {
4230 case SHT_PROGBITS:
4231 case SHT_NOBITS:
4232 /* If sh_type is yet undecided, assume it could be
4233 SHT_PROGBITS/SHT_NOBITS. */
4234 case SHT_NULL:
4235 return FALSE;
4236
4237 /* There shouldn't be section relative relocations
4238 against any other section. */
4239 default:
4240 return TRUE;
4241 }
4242 }
4243
4244 /* Create a .got section, as well as its additional info field. This
4245 is almost entirely copied from
4246 elflink.c:_bfd_elf_create_got_section(). */
4247
4248 static bfd_boolean
4249 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4250 {
4251 flagword flags, pltflags;
4252 asection *s;
4253 struct elf_link_hash_entry *h;
4254 struct bfd_link_hash_entry *bh;
4255 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4256 int ptralign;
4257 int offset;
4258
4259 /* This function may be called more than once. */
4260 s = bfd_get_section_by_name (abfd, ".got");
4261 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
4262 return TRUE;
4263
4264 /* Machine specific: although pointers are 32-bits wide, we want the
4265 GOT to be aligned to a 64-bit boundary, such that function
4266 descriptors in it can be accessed with 64-bit loads and
4267 stores. */
4268 ptralign = 3;
4269
4270 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4271 | SEC_LINKER_CREATED);
4272 pltflags = flags;
4273
4274 s = bfd_make_section_with_flags (abfd, ".got", flags);
4275 if (s == NULL
4276 || !bfd_set_section_alignment (abfd, s, ptralign))
4277 return FALSE;
4278
4279 if (bed->want_got_plt)
4280 {
4281 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
4282 if (s == NULL
4283 || !bfd_set_section_alignment (abfd, s, ptralign))
4284 return FALSE;
4285 }
4286
4287 if (bed->want_got_sym)
4288 {
4289 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4290 (or .got.plt) section. We don't do this in the linker script
4291 because we don't want to define the symbol if we are not creating
4292 a global offset table. */
4293 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4294 elf_hash_table (info)->hgot = h;
4295 if (h == NULL)
4296 return FALSE;
4297
4298 /* Machine-specific: we want the symbol for executables as
4299 well. */
4300 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4301 return FALSE;
4302 }
4303
4304 /* The first bit of the global offset table is the header. */
4305 s->size += bed->got_header_size;
4306
4307 /* This is the machine-specific part. Create and initialize section
4308 data for the got. */
4309 if (IS_FDPIC (abfd))
4310 {
4311 frvfdpic_got_section (info) = s;
4312 frvfdpic_relocs_info (info) = htab_try_create (1,
4313 frvfdpic_relocs_info_hash,
4314 frvfdpic_relocs_info_eq,
4315 (htab_del) NULL);
4316 if (! frvfdpic_relocs_info (info))
4317 return FALSE;
4318
4319 s = bfd_make_section_with_flags (abfd, ".rel.got",
4320 (flags | SEC_READONLY));
4321 if (s == NULL
4322 || ! bfd_set_section_alignment (abfd, s, 2))
4323 return FALSE;
4324
4325 frvfdpic_gotrel_section (info) = s;
4326
4327 /* Machine-specific. */
4328 s = bfd_make_section_with_flags (abfd, ".rofixup",
4329 (flags | SEC_READONLY));
4330 if (s == NULL
4331 || ! bfd_set_section_alignment (abfd, s, 2))
4332 return FALSE;
4333
4334 frvfdpic_gotfixup_section (info) = s;
4335 offset = -2048;
4336 flags = BSF_GLOBAL;
4337 }
4338 else
4339 {
4340 offset = 2048;
4341 flags = BSF_GLOBAL | BSF_WEAK;
4342 }
4343
4344 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4345 turns out that we're linking with a different linker script, the
4346 linker script will override it. */
4347 bh = NULL;
4348 if (!(_bfd_generic_link_add_one_symbol
4349 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4350 bed->collect, &bh)))
4351 return FALSE;
4352 h = (struct elf_link_hash_entry *) bh;
4353 h->def_regular = 1;
4354 h->type = STT_OBJECT;
4355 /* h->other = STV_HIDDEN; */ /* Should we? */
4356
4357 /* Machine-specific: we want the symbol for executables as well. */
4358 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4359 return FALSE;
4360
4361 if (!IS_FDPIC (abfd))
4362 return TRUE;
4363
4364 /* FDPIC supports Thread Local Storage, and this may require a
4365 procedure linkage table for TLS PLT entries. */
4366
4367 /* This is mostly copied from
4368 elflink.c:_bfd_elf_create_dynamic_sections(). */
4369
4370 flags = pltflags;
4371 pltflags |= SEC_CODE;
4372 if (bed->plt_not_loaded)
4373 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4374 if (bed->plt_readonly)
4375 pltflags |= SEC_READONLY;
4376
4377 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
4378 if (s == NULL
4379 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4380 return FALSE;
4381 /* FRV-specific: remember it. */
4382 frvfdpic_plt_section (info) = s;
4383
4384 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4385 .plt section. */
4386 if (bed->want_plt_sym)
4387 {
4388 h = _bfd_elf_define_linkage_sym (abfd, info, s,
4389 "_PROCEDURE_LINKAGE_TABLE_");
4390 elf_hash_table (info)->hplt = h;
4391 if (h == NULL)
4392 return FALSE;
4393 }
4394
4395 /* FRV-specific: we want rel relocations for the plt. */
4396 s = bfd_make_section_with_flags (abfd, ".rel.plt",
4397 flags | SEC_READONLY);
4398 if (s == NULL
4399 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4400 return FALSE;
4401 /* FRV-specific: remember it. */
4402 frvfdpic_pltrel_section (info) = s;
4403
4404 return TRUE;
4405 }
4406
4407 /* Make sure the got and plt sections exist, and that our pointers in
4408 the link hash table point to them. */
4409
4410 static bfd_boolean
4411 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4412 {
4413 /* This is mostly copied from
4414 elflink.c:_bfd_elf_create_dynamic_sections(). */
4415 flagword flags;
4416 asection *s;
4417 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4418
4419 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4420 | SEC_LINKER_CREATED);
4421
4422 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4423 .rel[a].bss sections. */
4424
4425 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4426 way. */
4427 if (! _frv_create_got_section (abfd, info))
4428 return FALSE;
4429
4430 /* FRV-specific: make sure we created everything we wanted. */
4431 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4432 && frvfdpic_gotfixup_section (info)
4433 && frvfdpic_plt_section (info)
4434 && frvfdpic_pltrel_section (info));
4435
4436 if (bed->want_dynbss)
4437 {
4438 /* The .dynbss section is a place to put symbols which are defined
4439 by dynamic objects, are referenced by regular objects, and are
4440 not functions. We must allocate space for them in the process
4441 image and use a R_*_COPY reloc to tell the dynamic linker to
4442 initialize them at run time. The linker script puts the .dynbss
4443 section into the .bss section of the final image. */
4444 s = bfd_make_section_with_flags (abfd, ".dynbss",
4445 SEC_ALLOC | SEC_LINKER_CREATED);
4446 if (s == NULL)
4447 return FALSE;
4448
4449 /* The .rel[a].bss section holds copy relocs. This section is not
4450 normally needed. We need to create it here, though, so that the
4451 linker will map it to an output section. We can't just create it
4452 only if we need it, because we will not know whether we need it
4453 until we have seen all the input files, and the first time the
4454 main linker code calls BFD after examining all the input files
4455 (size_dynamic_sections) the input sections have already been
4456 mapped to the output sections. If the section turns out not to
4457 be needed, we can discard it later. We will never need this
4458 section when generating a shared object, since they do not use
4459 copy relocs. */
4460 if (! info->shared)
4461 {
4462 s = bfd_make_section_with_flags (abfd,
4463 (bed->default_use_rela_p
4464 ? ".rela.bss" : ".rel.bss"),
4465 flags | SEC_READONLY);
4466 if (s == NULL
4467 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4468 return FALSE;
4469 }
4470 }
4471
4472 return TRUE;
4473 }
4474
4475 /* Compute the total GOT and PLT size required by each symbol in each
4476 range. Symbols may require up to 4 words in the GOT: an entry
4477 pointing to the symbol, an entry pointing to its function
4478 descriptor, and a private function descriptors taking two
4479 words. */
4480
4481 static void
4482 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4483 struct _frvfdpic_dynamic_got_info *dinfo)
4484 {
4485 /* Allocate space for a GOT entry pointing to the symbol. */
4486 if (entry->got12)
4487 dinfo->got12 += 4;
4488 else if (entry->gotlos)
4489 dinfo->gotlos += 4;
4490 else if (entry->gothilo)
4491 dinfo->gothilo += 4;
4492 else
4493 entry->relocs32--;
4494 entry->relocs32++;
4495
4496 /* Allocate space for a GOT entry pointing to the function
4497 descriptor. */
4498 if (entry->fdgot12)
4499 dinfo->got12 += 4;
4500 else if (entry->fdgotlos)
4501 dinfo->gotlos += 4;
4502 else if (entry->fdgothilo)
4503 dinfo->gothilo += 4;
4504 else
4505 entry->relocsfd--;
4506 entry->relocsfd++;
4507
4508 /* Decide whether we need a PLT entry, a function descriptor in the
4509 GOT, and a lazy PLT entry for this symbol. */
4510 entry->plt = entry->call
4511 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4512 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4513 entry->privfd = entry->plt
4514 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4515 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4516 && (entry->symndx != -1
4517 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4518 entry->lazyplt = entry->privfd
4519 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4520 && ! (dinfo->info->flags & DF_BIND_NOW)
4521 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4522
4523 /* Allocate space for a function descriptor. */
4524 if (entry->fdgoff12)
4525 dinfo->fd12 += 8;
4526 else if (entry->fdgofflos)
4527 dinfo->fdlos += 8;
4528 else if (entry->privfd && entry->plt)
4529 dinfo->fdplt += 8;
4530 else if (entry->privfd)
4531 dinfo->fdhilo += 8;
4532 else
4533 entry->relocsfdv--;
4534 entry->relocsfdv++;
4535
4536 if (entry->lazyplt)
4537 dinfo->lzplt += 8;
4538 }
4539
4540 /* Compute the total GOT size required by each TLS symbol in each
4541 range. Symbols may require up to 5 words in the GOT: an entry
4542 holding the TLS offset for the symbol, and an entry with a full TLS
4543 descriptor taking 4 words. */
4544
4545 static void
4546 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4547 struct _frvfdpic_dynamic_got_info *dinfo,
4548 bfd_boolean subtract)
4549 {
4550 const int l = subtract ? -1 : 1;
4551
4552 /* Allocate space for a GOT entry with the TLS offset of the
4553 symbol. */
4554 if (entry->tlsoff12)
4555 dinfo->got12 += 4 * l;
4556 else if (entry->tlsofflos)
4557 dinfo->gotlos += 4 * l;
4558 else if (entry->tlsoffhilo)
4559 dinfo->gothilo += 4 * l;
4560 else
4561 entry->relocstlsoff -= l;
4562 entry->relocstlsoff += l;
4563
4564 /* If there's any TLSOFF relocation, mark the output file as not
4565 suitable for dlopening. This mark will remain even if we relax
4566 all such relocations, but this is not a problem, since we'll only
4567 do so for executables, and we definitely don't want anyone
4568 dlopening executables. */
4569 if (entry->relocstlsoff)
4570 dinfo->info->flags |= DF_STATIC_TLS;
4571
4572 /* Allocate space for a TLS descriptor. */
4573 if (entry->tlsdesc12)
4574 dinfo->tlsd12 += 8 * l;
4575 else if (entry->tlsdesclos)
4576 dinfo->tlsdlos += 8 * l;
4577 else if (entry->tlsplt)
4578 dinfo->tlsdplt += 8 * l;
4579 else if (entry->tlsdeschilo)
4580 dinfo->tlsdhilo += 8 * l;
4581 else
4582 entry->relocstlsd -= l;
4583 entry->relocstlsd += l;
4584 }
4585
4586 /* Compute the number of dynamic relocations and fixups that a symbol
4587 requires, and add (or subtract) from the grand and per-symbol
4588 totals. */
4589
4590 static void
4591 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4592 struct _frvfdpic_dynamic_got_info *dinfo,
4593 bfd_boolean subtract)
4594 {
4595 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4596
4597 if (!dinfo->info->executable || dinfo->info->pie)
4598 {
4599 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4600 + entry->relocstlsd;
4601
4602 /* In the executable, TLS relocations to symbols that bind
4603 locally (including those that resolve to global TLS offsets)
4604 are resolved immediately, without any need for fixups or
4605 dynamic relocations. In shared libraries, however, we must
4606 emit dynamic relocations even for local symbols, because we
4607 don't know the module id the library is going to get at
4608 run-time, nor its TLS base offset. */
4609 if (!dinfo->info->executable
4610 || (entry->symndx == -1
4611 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4612 relocs += entry->relocstlsoff;
4613 }
4614 else
4615 {
4616 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4617 {
4618 if (entry->symndx != -1
4619 || entry->d.h->root.type != bfd_link_hash_undefweak)
4620 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4621 fixups += entry->relocstlsd;
4622 tlsrets += entry->relocstlsd;
4623 }
4624 else
4625 {
4626 relocs += entry->relocs32 + entry->relocsfdv
4627 + entry->relocstlsoff + entry->relocstlsd;
4628 }
4629
4630 if (entry->symndx != -1
4631 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4632 {
4633 if (entry->symndx != -1
4634 || entry->d.h->root.type != bfd_link_hash_undefweak)
4635 fixups += entry->relocsfd;
4636 }
4637 else
4638 relocs += entry->relocsfd;
4639 }
4640
4641 if (subtract)
4642 {
4643 relocs = - relocs;
4644 fixups = - fixups;
4645 tlsrets = - tlsrets;
4646 }
4647
4648 entry->dynrelocs += relocs;
4649 entry->fixups += fixups;
4650 dinfo->relocs += relocs;
4651 dinfo->fixups += fixups;
4652 dinfo->tls_ret_refs += tlsrets;
4653 }
4654
4655 /* Look for opportunities to relax TLS relocations. We can assume
4656 we're linking the main executable or a static-tls library, since
4657 otherwise we wouldn't have got here. When relaxing, we have to
4658 first undo any previous accounting of TLS uses of fixups, dynamic
4659 relocations, GOT and PLT entries. */
4660
4661 static void
4662 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4663 struct _frvfdpic_dynamic_got_info *dinfo,
4664 bfd_boolean relaxing)
4665 {
4666 bfd_boolean changed = ! relaxing;
4667
4668 BFD_ASSERT (dinfo->info->executable
4669 || (dinfo->info->flags & DF_STATIC_TLS));
4670
4671 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4672 {
4673 if (! changed)
4674 {
4675 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4676 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4677 changed = TRUE;
4678 }
4679
4680 /* When linking an executable, we can always decay GOTTLSDESC to
4681 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4682 When linking a static-tls shared library, using TLSMOFF is
4683 not an option, but we can still use GOTTLSOFF. When decaying
4684 to GOTTLSOFF, we must keep the GOT entry in range. We know
4685 it has to fit because we'll be trading the 4 words of hte TLS
4686 descriptor for a single word in the same range. */
4687 if (! dinfo->info->executable
4688 || (entry->symndx == -1
4689 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4690 {
4691 entry->tlsoff12 |= entry->tlsdesc12;
4692 entry->tlsofflos |= entry->tlsdesclos;
4693 entry->tlsoffhilo |= entry->tlsdeschilo;
4694 }
4695
4696 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4697 }
4698
4699 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4700 main executable. We have to check whether the symbol's TLSOFF is
4701 in range for a setlos. For symbols with a hash entry, we can
4702 determine exactly what to do; for others locals, we don't have
4703 addresses handy, so we use the size of the TLS section as an
4704 approximation. If we get it wrong, we'll retain a GOT entry
4705 holding the TLS offset (without dynamic relocations or fixups),
4706 but we'll still optimize away the loads from it. Since TLS sizes
4707 are generally very small, it's probably not worth attempting to
4708 do better than this. */
4709 if ((entry->tlsplt
4710 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4711 && dinfo->info->executable && relaxing
4712 && ((entry->symndx == -1
4713 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4714 /* The above may hold for an undefweak TLS symbol, so make
4715 sure we don't have this case before accessing def.value
4716 and def.section. */
4717 && (entry->d.h->root.type == bfd_link_hash_undefweak
4718 || (bfd_vma)(entry->d.h->root.u.def.value
4719 + (entry->d.h->root.u.def.section
4720 ->output_section->vma)
4721 + entry->d.h->root.u.def.section->output_offset
4722 + entry->addend
4723 - tls_biased_base (dinfo->info)
4724 + 32768) < (bfd_vma)65536))
4725 || (entry->symndx != -1
4726 && (elf_hash_table (dinfo->info)->tls_sec->size
4727 + abs (entry->addend) < 32768 + FRVFDPIC_TLS_BIAS))))
4728 {
4729 if (! changed)
4730 {
4731 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4732 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4733 changed = TRUE;
4734 }
4735
4736 entry->tlsplt =
4737 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4738 }
4739
4740 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4741 have a #gottlsoff12 relocation for this entry, or if we can fit
4742 one more in the 12-bit (and 16-bit) ranges. */
4743 if (entry->tlsplt
4744 && (entry->tlsoff12
4745 || (relaxing
4746 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4747 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4748 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4749 <= 65536 - 12 - 4))))
4750 {
4751 if (! changed)
4752 {
4753 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4754 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4755 changed = TRUE;
4756 }
4757
4758 entry->tlsoff12 = 1;
4759 entry->tlsplt = 0;
4760 }
4761
4762 if (changed)
4763 {
4764 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4765 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4766 }
4767
4768 return;
4769 }
4770
4771 /* Compute the total GOT and PLT size required by each symbol in each range. *
4772 Symbols may require up to 4 words in the GOT: an entry pointing to
4773 the symbol, an entry pointing to its function descriptor, and a
4774 private function descriptors taking two words. */
4775
4776 static int
4777 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4778 {
4779 struct frvfdpic_relocs_info *entry = *entryp;
4780 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4781
4782 _frvfdpic_count_nontls_entries (entry, dinfo);
4783
4784 if (dinfo->info->executable || (dinfo->info->flags & DF_STATIC_TLS))
4785 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4786 else
4787 {
4788 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4789 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4790 }
4791
4792 return 1;
4793 }
4794
4795 /* Determine the positive and negative ranges to be used by each
4796 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4797 double-word boundary, are the minimum (negative) and maximum
4798 (positive) GOT offsets already used by previous ranges, except for
4799 an ODD entry that may have been left behind. GOT and FD indicate
4800 the size of GOT entries and function descriptors that must be
4801 placed within the range from -WRAP to WRAP. If there's room left,
4802 up to FDPLT bytes should be reserved for additional function
4803 descriptors. */
4804
4805 inline static bfd_signed_vma
4806 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4807 bfd_signed_vma fdcur,
4808 bfd_signed_vma odd,
4809 bfd_signed_vma cur,
4810 bfd_vma got,
4811 bfd_vma fd,
4812 bfd_vma fdplt,
4813 bfd_vma tlsd,
4814 bfd_vma tlsdplt,
4815 bfd_vma wrap)
4816 {
4817 bfd_signed_vma wrapmin = -wrap;
4818 const bfd_vma tdescsz = 8;
4819
4820 /* Start at the given initial points. */
4821 gad->fdcur = fdcur;
4822 gad->cur = cur;
4823
4824 /* If we had an incoming odd word and we have any got entries that
4825 are going to use it, consume it, otherwise leave gad->odd at
4826 zero. We might force gad->odd to zero and return the incoming
4827 odd such that it is used by the next range, but then GOT entries
4828 might appear to be out of order and we wouldn't be able to
4829 shorten the GOT by one word if it turns out to end with an
4830 unpaired GOT entry. */
4831 if (odd && got)
4832 {
4833 gad->odd = odd;
4834 got -= 4;
4835 odd = 0;
4836 }
4837 else
4838 gad->odd = 0;
4839
4840 /* If we're left with an unpaired GOT entry, compute its location
4841 such that we can return it. Otherwise, if got doesn't require an
4842 odd number of words here, either odd was already zero in the
4843 block above, or it was set to zero because got was non-zero, or
4844 got was already zero. In the latter case, we want the value of
4845 odd to carry over to the return statement, so we don't want to
4846 reset odd unless the condition below is true. */
4847 if (got & 4)
4848 {
4849 odd = cur + got;
4850 got += 4;
4851 }
4852
4853 /* Compute the tentative boundaries of this range. */
4854 gad->max = cur + got;
4855 gad->min = fdcur - fd;
4856 gad->fdplt = 0;
4857
4858 /* If function descriptors took too much space, wrap some of them
4859 around. */
4860 if (gad->min < wrapmin)
4861 {
4862 gad->max += wrapmin - gad->min;
4863 gad->tmin = gad->min = wrapmin;
4864 }
4865
4866 /* If GOT entries took too much space, wrap some of them around.
4867 This may well cause gad->min to become lower than wrapmin. This
4868 will cause a relocation overflow later on, so we don't have to
4869 report it here . */
4870 if ((bfd_vma) gad->max > wrap)
4871 {
4872 gad->min -= gad->max - wrap;
4873 gad->max = wrap;
4874 }
4875
4876 /* Add TLS descriptors. */
4877 gad->tmax = gad->max + tlsd;
4878 gad->tmin = gad->min;
4879 gad->tlsdplt = 0;
4880
4881 /* If TLS descriptors took too much space, wrap an integral number
4882 of them around. */
4883 if ((bfd_vma) gad->tmax > wrap)
4884 {
4885 bfd_vma wrapsize = gad->tmax - wrap;
4886
4887 wrapsize += tdescsz / 2;
4888 wrapsize &= ~ tdescsz / 2;
4889
4890 gad->tmin -= wrapsize;
4891 gad->tmax -= wrapsize;
4892 }
4893
4894 /* If there is space left and we have function descriptors
4895 referenced in PLT entries that could take advantage of shorter
4896 offsets, place them now. */
4897 if (fdplt && gad->tmin > wrapmin)
4898 {
4899 bfd_vma fds;
4900
4901 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4902 fds = gad->tmin - wrapmin;
4903 else
4904 fds = fdplt;
4905
4906 fdplt -= fds;
4907 gad->min -= fds;
4908 gad->tmin -= fds;
4909 gad->fdplt += fds;
4910 }
4911
4912 /* If there is more space left, try to place some more function
4913 descriptors for PLT entries. */
4914 if (fdplt && (bfd_vma) gad->tmax < wrap)
4915 {
4916 bfd_vma fds;
4917
4918 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4919 fds = wrap - gad->tmax;
4920 else
4921 fds = fdplt;
4922
4923 fdplt -= fds;
4924 gad->max += fds;
4925 gad->tmax += fds;
4926 gad->fdplt += fds;
4927 }
4928
4929 /* If there is space left and we have TLS descriptors referenced in
4930 PLT entries that could take advantage of shorter offsets, place
4931 them now. */
4932 if (tlsdplt && gad->tmin > wrapmin)
4933 {
4934 bfd_vma tlsds;
4935
4936 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4937 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4938 else
4939 tlsds = tlsdplt;
4940
4941 tlsdplt -= tlsds;
4942 gad->tmin -= tlsds;
4943 gad->tlsdplt += tlsds;
4944 }
4945
4946 /* If there is more space left, try to place some more TLS
4947 descriptors for PLT entries. Although we could try to fit an
4948 additional TLS descriptor with half of it just before before the
4949 wrap point and another right past the wrap point, this might
4950 cause us to run out of space for the next region, so don't do
4951 it. */
4952 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4953 {
4954 bfd_vma tlsds;
4955
4956 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4957 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4958 else
4959 tlsds = tlsdplt;
4960
4961 tlsdplt -= tlsds;
4962 gad->tmax += tlsds;
4963 gad->tlsdplt += tlsds;
4964 }
4965
4966 /* If odd was initially computed as an offset past the wrap point,
4967 wrap it around. */
4968 if (odd > gad->max)
4969 odd = gad->min + odd - gad->max;
4970
4971 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4972 before returning, so do it here too. This guarantees that,
4973 should cur and fdcur meet at the wrap point, they'll both be
4974 equal to min. */
4975 if (gad->cur == gad->max)
4976 gad->cur = gad->min;
4977
4978 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
4979 gad->tcur = gad->max;
4980 if (gad->tcur == gad->tmax)
4981 gad->tcur = gad->tmin;
4982
4983 return odd;
4984 }
4985
4986 /* Compute the location of the next GOT entry, given the allocation
4987 data for a range. */
4988
4989 inline static bfd_signed_vma
4990 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4991 {
4992 bfd_signed_vma ret;
4993
4994 if (gad->odd)
4995 {
4996 /* If there was an odd word left behind, use it. */
4997 ret = gad->odd;
4998 gad->odd = 0;
4999 }
5000 else
5001 {
5002 /* Otherwise, use the word pointed to by cur, reserve the next
5003 as an odd word, and skip to the next pair of words, possibly
5004 wrapping around. */
5005 ret = gad->cur;
5006 gad->odd = gad->cur + 4;
5007 gad->cur += 8;
5008 if (gad->cur == gad->max)
5009 gad->cur = gad->min;
5010 }
5011
5012 return ret;
5013 }
5014
5015 /* Compute the location of the next function descriptor entry in the
5016 GOT, given the allocation data for a range. */
5017
5018 inline static bfd_signed_vma
5019 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5020 {
5021 /* If we're at the bottom, wrap around, and only then allocate the
5022 next pair of words. */
5023 if (gad->fdcur == gad->min)
5024 gad->fdcur = gad->max;
5025 return gad->fdcur -= 8;
5026 }
5027
5028 /* Compute the location of the next TLS descriptor entry in the GOT,
5029 given the allocation data for a range. */
5030 inline static bfd_signed_vma
5031 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5032 {
5033 bfd_signed_vma ret;
5034
5035 ret = gad->tcur;
5036
5037 gad->tcur += 8;
5038
5039 /* If we're at the top of the region, wrap around to the bottom. */
5040 if (gad->tcur == gad->tmax)
5041 gad->tcur = gad->tmin;
5042
5043 return ret;
5044 }
5045
5046 /* Assign GOT offsets for every GOT entry and function descriptor.
5047 Doing everything in a single pass is tricky. */
5048
5049 static int
5050 _frvfdpic_assign_got_entries (void **entryp, void *info_)
5051 {
5052 struct frvfdpic_relocs_info *entry = *entryp;
5053 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5054
5055 if (entry->got12)
5056 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5057 else if (entry->gotlos)
5058 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5059 else if (entry->gothilo)
5060 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5061
5062 if (entry->fdgot12)
5063 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5064 else if (entry->fdgotlos)
5065 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5066 else if (entry->fdgothilo)
5067 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5068
5069 if (entry->fdgoff12)
5070 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5071 else if (entry->plt && dinfo->got12.fdplt)
5072 {
5073 dinfo->got12.fdplt -= 8;
5074 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5075 }
5076 else if (entry->fdgofflos)
5077 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5078 else if (entry->plt && dinfo->gotlos.fdplt)
5079 {
5080 dinfo->gotlos.fdplt -= 8;
5081 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5082 }
5083 else if (entry->plt)
5084 {
5085 dinfo->gothilo.fdplt -= 8;
5086 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5087 }
5088 else if (entry->privfd)
5089 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5090
5091 if (entry->tlsoff12)
5092 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5093 else if (entry->tlsofflos)
5094 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5095 else if (entry->tlsoffhilo)
5096 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5097
5098 if (entry->tlsdesc12)
5099 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5100 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5101 {
5102 dinfo->got12.tlsdplt -= 8;
5103 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5104 }
5105 else if (entry->tlsdesclos)
5106 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5107 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5108 {
5109 dinfo->gotlos.tlsdplt -= 8;
5110 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5111 }
5112 else if (entry->tlsplt)
5113 {
5114 dinfo->gothilo.tlsdplt -= 8;
5115 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5116 }
5117 else if (entry->tlsdeschilo)
5118 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5119
5120 return 1;
5121 }
5122
5123 /* Assign GOT offsets to private function descriptors used by PLT
5124 entries (or referenced by 32-bit offsets), as well as PLT entries
5125 and lazy PLT entries. */
5126
5127 static int
5128 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5129 {
5130 struct frvfdpic_relocs_info *entry = *entryp;
5131 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5132
5133 if (entry->privfd)
5134 BFD_ASSERT (entry->fd_entry);
5135
5136 if (entry->plt)
5137 {
5138 int size;
5139
5140 /* We use the section's raw size to mark the location of the
5141 next PLT entry. */
5142 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5143
5144 /* Figure out the length of this PLT entry based on the
5145 addressing mode we need to reach the function descriptor. */
5146 BFD_ASSERT (entry->fd_entry);
5147 if (entry->fd_entry >= -(1 << (12 - 1))
5148 && entry->fd_entry < (1 << (12 - 1)))
5149 size = 8;
5150 else if (entry->fd_entry >= -(1 << (16 - 1))
5151 && entry->fd_entry < (1 << (16 - 1)))
5152 size = 12;
5153 else
5154 size = 16;
5155
5156 frvfdpic_plt_section (dinfo->g.info)->size += size;
5157 }
5158
5159 if (entry->lazyplt)
5160 {
5161 entry->lzplt_entry = dinfo->g.lzplt;
5162 dinfo->g.lzplt += 8;
5163 /* If this entry is the one that gets the resolver stub, account
5164 for the additional instruction. */
5165 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5166 == FRVFDPIC_LZPLT_RESOLV_LOC)
5167 dinfo->g.lzplt += 4;
5168 }
5169
5170 if (entry->tlsplt)
5171 {
5172 int size;
5173
5174 entry->tlsplt_entry
5175 = frvfdpic_plt_section (dinfo->g.info)->size;
5176
5177 if (dinfo->g.info->executable
5178 && (entry->symndx != -1
5179 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5180 {
5181 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5182 /* FIXME: here we use the size of the TLS section
5183 as an upper bound for the value of the TLS
5184 symbol, because we may not know the exact value
5185 yet. If we get it wrong, we'll just waste a
5186 word in the PLT, and we should never get even
5187 close to 32 KiB of TLS anyway. */
5188 && elf_hash_table (dinfo->g.info)->tls_sec
5189 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5190 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5191 size = 8;
5192 else
5193 size = 12;
5194 }
5195 else if (entry->tlsoff_entry)
5196 {
5197 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5198 && entry->tlsoff_entry < (1 << (12 - 1)))
5199 size = 8;
5200 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5201 && entry->tlsoff_entry < (1 << (16 - 1)))
5202 size = 12;
5203 else
5204 size = 16;
5205 }
5206 else
5207 {
5208 BFD_ASSERT (entry->tlsdesc_entry);
5209
5210 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5211 && entry->tlsdesc_entry < (1 << (12 - 1)))
5212 size = 8;
5213 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5214 && entry->tlsdesc_entry < (1 << (16 - 1)))
5215 size = 12;
5216 else
5217 size = 16;
5218 }
5219
5220 frvfdpic_plt_section (dinfo->g.info)->size += size;
5221 }
5222
5223 return 1;
5224 }
5225
5226 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5227 _frvfdpic_assign_plt_entries. */
5228
5229 static int
5230 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5231 {
5232 struct frvfdpic_relocs_info *entry = *entryp;
5233
5234 entry->got_entry = 0;
5235 entry->fdgot_entry = 0;
5236 entry->fd_entry = 0;
5237 entry->plt_entry = (bfd_vma)-1;
5238 entry->lzplt_entry = (bfd_vma)-1;
5239 entry->tlsoff_entry = 0;
5240 entry->tlsdesc_entry = 0;
5241 entry->tlsplt_entry = (bfd_vma)-1;
5242
5243 return 1;
5244 }
5245
5246 /* Follow indirect and warning hash entries so that each got entry
5247 points to the final symbol definition. P must point to a pointer
5248 to the hash table we're traversing. Since this traversal may
5249 modify the hash table, we set this pointer to NULL to indicate
5250 we've made a potentially-destructive change to the hash table, so
5251 the traversal must be restarted. */
5252 static int
5253 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5254 {
5255 struct frvfdpic_relocs_info *entry = *entryp;
5256 htab_t *htab = p;
5257
5258 if (entry->symndx == -1)
5259 {
5260 struct elf_link_hash_entry *h = entry->d.h;
5261 struct frvfdpic_relocs_info *oentry;
5262
5263 while (h->root.type == bfd_link_hash_indirect
5264 || h->root.type == bfd_link_hash_warning)
5265 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5266
5267 if (entry->d.h == h)
5268 return 1;
5269
5270 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5271 NO_INSERT);
5272
5273 if (oentry)
5274 {
5275 /* Merge the two entries. */
5276 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5277 htab_clear_slot (*htab, entryp);
5278 return 1;
5279 }
5280
5281 entry->d.h = h;
5282
5283 /* If we can't find this entry with the new bfd hash, re-insert
5284 it, and get the traversal restarted. */
5285 if (! htab_find (*htab, entry))
5286 {
5287 htab_clear_slot (*htab, entryp);
5288 entryp = htab_find_slot (*htab, entry, INSERT);
5289 if (! *entryp)
5290 *entryp = entry;
5291 /* Abort the traversal, since the whole table may have
5292 moved, and leave it up to the parent to restart the
5293 process. */
5294 *(htab_t *)p = NULL;
5295 return 0;
5296 }
5297 }
5298
5299 return 1;
5300 }
5301
5302 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5303 section and the rofixup section. Assign locations for GOT and PLT
5304 entries. */
5305
5306 static bfd_boolean
5307 _frvfdpic_size_got_plt (bfd *output_bfd,
5308 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5309 {
5310 bfd_signed_vma odd;
5311 bfd_vma limit, tlslimit;
5312 struct bfd_link_info *info = gpinfop->g.info;
5313 bfd *dynobj = elf_hash_table (info)->dynobj;
5314
5315 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5316 sizeof (gpinfop->g));
5317
5318 odd = 12;
5319 /* Compute the total size taken by entries in the 12-bit and 16-bit
5320 ranges, to tell how many PLT function descriptors we can bring
5321 into the 12-bit range without causing the 16-bit range to
5322 overflow. */
5323 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5324 + gpinfop->g.fd12 + gpinfop->g.fdlos
5325 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5326 if (limit < (bfd_vma)1 << 16)
5327 limit = ((bfd_vma)1 << 16) - limit;
5328 else
5329 limit = 0;
5330 if (gpinfop->g.fdplt < limit)
5331 {
5332 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5333 limit = gpinfop->g.fdplt;
5334 }
5335 else
5336 tlslimit = 0;
5337 if (gpinfop->g.tlsdplt < tlslimit)
5338 tlslimit = gpinfop->g.tlsdplt;
5339
5340 /* Determine the ranges of GOT offsets that we can use for each
5341 range of addressing modes. */
5342 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5343 0,
5344 odd,
5345 16,
5346 gpinfop->g.got12,
5347 gpinfop->g.fd12,
5348 limit,
5349 gpinfop->g.tlsd12,
5350 tlslimit,
5351 (bfd_vma)1 << (12-1));
5352 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5353 gpinfop->got12.tmin,
5354 odd,
5355 gpinfop->got12.tmax,
5356 gpinfop->g.gotlos,
5357 gpinfop->g.fdlos,
5358 gpinfop->g.fdplt
5359 - gpinfop->got12.fdplt,
5360 gpinfop->g.tlsdlos,
5361 gpinfop->g.tlsdplt
5362 - gpinfop->got12.tlsdplt,
5363 (bfd_vma)1 << (16-1));
5364 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5365 gpinfop->gotlos.tmin,
5366 odd,
5367 gpinfop->gotlos.tmax,
5368 gpinfop->g.gothilo,
5369 gpinfop->g.fdhilo,
5370 gpinfop->g.fdplt
5371 - gpinfop->got12.fdplt
5372 - gpinfop->gotlos.fdplt,
5373 gpinfop->g.tlsdhilo,
5374 gpinfop->g.tlsdplt
5375 - gpinfop->got12.tlsdplt
5376 - gpinfop->gotlos.tlsdplt,
5377 (bfd_vma)1 << (32-1));
5378
5379 /* Now assign (most) GOT offsets. */
5380 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5381 gpinfop);
5382
5383 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5384 - gpinfop->gothilo.tmin
5385 /* If an odd word is the last word of the GOT, we don't need this
5386 word to be part of the GOT. */
5387 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5388 if (frvfdpic_got_section (info)->size == 0)
5389 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5390 else if (frvfdpic_got_section (info)->size == 12
5391 && ! elf_hash_table (info)->dynamic_sections_created)
5392 {
5393 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5394 frvfdpic_got_section (info)->size = 0;
5395 }
5396 /* This will be non-NULL during relaxation. The assumption is that
5397 the size of one of these sections will never grow, only shrink,
5398 so we can use the larger buffer we allocated before. */
5399 else if (frvfdpic_got_section (info)->contents == NULL)
5400 {
5401 frvfdpic_got_section (info)->contents =
5402 (bfd_byte *) bfd_zalloc (dynobj,
5403 frvfdpic_got_section (info)->size);
5404 if (frvfdpic_got_section (info)->contents == NULL)
5405 return FALSE;
5406 }
5407
5408 if (frvfdpic_gotrel_section (info))
5409 /* Subtract the number of lzplt entries, since those will generate
5410 relocations in the pltrel section. */
5411 frvfdpic_gotrel_section (info)->size =
5412 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5413 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5414 else
5415 BFD_ASSERT (gpinfop->g.relocs == 0);
5416 if (frvfdpic_gotrel_section (info)->size == 0)
5417 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5418 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5419 {
5420 frvfdpic_gotrel_section (info)->contents =
5421 (bfd_byte *) bfd_zalloc (dynobj,
5422 frvfdpic_gotrel_section (info)->size);
5423 if (frvfdpic_gotrel_section (info)->contents == NULL)
5424 return FALSE;
5425 }
5426
5427 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5428 if (frvfdpic_gotfixup_section (info)->size == 0)
5429 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5430 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5431 {
5432 frvfdpic_gotfixup_section (info)->contents =
5433 (bfd_byte *) bfd_zalloc (dynobj,
5434 frvfdpic_gotfixup_section (info)->size);
5435 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5436 return FALSE;
5437 }
5438
5439 if (frvfdpic_pltrel_section (info))
5440 {
5441 frvfdpic_pltrel_section (info)->size =
5442 gpinfop->g.lzplt / 8
5443 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5444 if (frvfdpic_pltrel_section (info)->size == 0)
5445 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5446 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5447 {
5448 frvfdpic_pltrel_section (info)->contents =
5449 (bfd_byte *) bfd_zalloc (dynobj,
5450 frvfdpic_pltrel_section (info)->size);
5451 if (frvfdpic_pltrel_section (info)->contents == NULL)
5452 return FALSE;
5453 }
5454 }
5455
5456 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5457 such that there's room for the additional instruction needed to
5458 call the resolver. Since _frvfdpic_assign_got_entries didn't
5459 account for them, our block size is 4 bytes smaller than the real
5460 block size. */
5461 if (frvfdpic_plt_section (info))
5462 {
5463 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5464 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5465 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5466 }
5467
5468 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5469 actually assign lazy PLT entries addresses. */
5470 gpinfop->g.lzplt = 0;
5471
5472 /* Save information that we're going to need to generate GOT and PLT
5473 entries. */
5474 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5475
5476 if (get_elf_backend_data (output_bfd)->want_got_sym)
5477 elf_hash_table (info)->hgot->root.u.def.value
5478 = frvfdpic_got_initial_offset (info);
5479
5480 if (frvfdpic_plt_section (info))
5481 frvfdpic_plt_initial_offset (info) =
5482 frvfdpic_plt_section (info)->size;
5483
5484 /* Allocate a ret statement at plt_initial_offset, to be used by
5485 locally-resolved TLS descriptors. */
5486 if (gpinfop->g.tls_ret_refs)
5487 frvfdpic_plt_section (info)->size += 4;
5488
5489 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5490 gpinfop);
5491
5492 /* Allocate the PLT section contents only after
5493 _frvfdpic_assign_plt_entries has a chance to add the size of the
5494 non-lazy PLT entries. */
5495 if (frvfdpic_plt_section (info))
5496 {
5497 if (frvfdpic_plt_section (info)->size == 0)
5498 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5499 else if (frvfdpic_plt_section (info)->contents == NULL)
5500 {
5501 frvfdpic_plt_section (info)->contents =
5502 (bfd_byte *) bfd_zalloc (dynobj,
5503 frvfdpic_plt_section (info)->size);
5504 if (frvfdpic_plt_section (info)->contents == NULL)
5505 return FALSE;
5506 }
5507 }
5508
5509 return TRUE;
5510 }
5511
5512 /* Set the sizes of the dynamic sections. */
5513
5514 static bfd_boolean
5515 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5516 struct bfd_link_info *info)
5517 {
5518 bfd *dynobj;
5519 asection *s;
5520 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5521
5522 dynobj = elf_hash_table (info)->dynobj;
5523 BFD_ASSERT (dynobj != NULL);
5524
5525 if (elf_hash_table (info)->dynamic_sections_created)
5526 {
5527 /* Set the contents of the .interp section to the interpreter. */
5528 if (info->executable)
5529 {
5530 s = bfd_get_section_by_name (dynobj, ".interp");
5531 BFD_ASSERT (s != NULL);
5532 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5533 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5534 }
5535 }
5536
5537 memset (&gpinfo, 0, sizeof (gpinfo));
5538 gpinfo.g.info = info;
5539
5540 for (;;)
5541 {
5542 htab_t relocs = frvfdpic_relocs_info (info);
5543
5544 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5545
5546 if (relocs == frvfdpic_relocs_info (info))
5547 break;
5548 }
5549
5550 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5551 &gpinfo.g);
5552
5553 /* Allocate space to save the summary information, we're going to
5554 use it if we're doing relaxations. */
5555 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5556
5557 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5558 return FALSE;
5559
5560 if (elf_hash_table (info)->dynamic_sections_created)
5561 {
5562 if (frvfdpic_got_section (info)->size)
5563 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5564 return FALSE;
5565
5566 if (frvfdpic_pltrel_section (info)->size)
5567 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5568 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5569 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5570 return FALSE;
5571
5572 if (frvfdpic_gotrel_section (info)->size)
5573 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5574 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5575 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5576 sizeof (Elf32_External_Rel)))
5577 return FALSE;
5578 }
5579
5580 return TRUE;
5581 }
5582
5583 static bfd_boolean
5584 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5585 struct bfd_link_info *info)
5586 {
5587 if (!info->relocatable)
5588 {
5589 struct elf_link_hash_entry *h;
5590
5591 /* Force a PT_GNU_STACK segment to be created. */
5592 if (! elf_tdata (output_bfd)->stack_flags)
5593 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
5594
5595 /* Define __stacksize if it's not defined yet. */
5596 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5597 FALSE, FALSE, FALSE);
5598 if (! h || h->root.type != bfd_link_hash_defined
5599 || h->type != STT_OBJECT
5600 || !h->def_regular)
5601 {
5602 struct bfd_link_hash_entry *bh = NULL;
5603
5604 if (!(_bfd_generic_link_add_one_symbol
5605 (info, output_bfd, "__stacksize",
5606 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
5607 (const char *) NULL, FALSE,
5608 get_elf_backend_data (output_bfd)->collect, &bh)))
5609 return FALSE;
5610
5611 h = (struct elf_link_hash_entry *) bh;
5612 h->def_regular = 1;
5613 h->type = STT_OBJECT;
5614 /* This one must NOT be hidden. */
5615 }
5616 }
5617
5618 return TRUE;
5619 }
5620
5621 /* Check whether any of the relocations was optimized away, and
5622 subtract it from the relocation or fixup count. */
5623 static bfd_boolean
5624 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5625 struct bfd_link_info *info,
5626
5627 bfd_boolean *changed)
5628 {
5629 Elf_Internal_Shdr *symtab_hdr;
5630 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
5631 Elf_Internal_Rela *rel, *erel;
5632
5633 if ((sec->flags & SEC_RELOC) == 0
5634 || sec->reloc_count == 0)
5635 return TRUE;
5636
5637 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5638 sym_hashes = elf_sym_hashes (abfd);
5639 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
5640 if (!elf_bad_symtab (abfd))
5641 sym_hashes_end -= symtab_hdr->sh_info;
5642
5643 rel = elf_section_data (sec)->relocs;
5644
5645 /* Now examine each relocation. */
5646 for (erel = rel + sec->reloc_count; rel < erel; rel++)
5647 {
5648 struct elf_link_hash_entry *h;
5649 unsigned long r_symndx;
5650 struct frvfdpic_relocs_info *picrel;
5651 struct _frvfdpic_dynamic_got_info *dinfo;
5652
5653 if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5654 && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5655 continue;
5656
5657 if (_bfd_elf_section_offset (sec->output_section->owner,
5658 info, sec, rel->r_offset)
5659 != (bfd_vma)-1)
5660 continue;
5661
5662 r_symndx = ELF32_R_SYM (rel->r_info);
5663 if (r_symndx < symtab_hdr->sh_info)
5664 h = NULL;
5665 else
5666 {
5667 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5668 while (h->root.type == bfd_link_hash_indirect
5669 || h->root.type == bfd_link_hash_warning)
5670 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5671 }
5672
5673 if (h != NULL)
5674 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5675 abfd, h,
5676 rel->r_addend, NO_INSERT);
5677 else
5678 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5679 abfd, r_symndx,
5680 rel->r_addend, NO_INSERT);
5681
5682 if (! picrel)
5683 return FALSE;
5684
5685 *changed = TRUE;
5686 dinfo = frvfdpic_dynamic_got_plt_info (info);
5687
5688 _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5689 if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5690 picrel->relocs32--;
5691 else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5692 picrel->relocsfd--;
5693 _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5694 }
5695
5696 return TRUE;
5697 }
5698
5699 static bfd_boolean
5700 frvfdpic_elf_discard_info (bfd *ibfd,
5701 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5702 struct bfd_link_info *info)
5703 {
5704 bfd_boolean changed = FALSE;
5705 asection *s;
5706 bfd *obfd = NULL;
5707
5708 /* Account for relaxation of .eh_frame section. */
5709 for (s = ibfd->sections; s; s = s->next)
5710 if (s->sec_info_type == ELF_INFO_TYPE_EH_FRAME)
5711 {
5712 if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5713 return FALSE;
5714 obfd = s->output_section->owner;
5715 }
5716
5717 if (changed)
5718 {
5719 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5720
5721 memset (&gpinfo, 0, sizeof (gpinfo));
5722 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5723 sizeof (gpinfo.g));
5724
5725 /* Clear GOT and PLT assignments. */
5726 htab_traverse (frvfdpic_relocs_info (info),
5727 _frvfdpic_reset_got_plt_entries,
5728 NULL);
5729
5730 if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5731 return FALSE;
5732 }
5733
5734 return TRUE;
5735 }
5736
5737 /* Look for opportunities to relax TLS relocations. We can assume
5738 we're linking the main executable or a static-tls library, since
5739 otherwise we wouldn't have got here. */
5740
5741 static int
5742 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5743 {
5744 struct frvfdpic_relocs_info *entry = *entryp;
5745 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5746
5747 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5748
5749 return 1;
5750 }
5751
5752 static bfd_boolean
5753 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5754 struct bfd_link_info *info, bfd_boolean *again)
5755 {
5756 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5757
5758 /* If we return early, we didn't change anything. */
5759 *again = FALSE;
5760
5761 /* We'll do our thing when requested to relax the GOT section. */
5762 if (sec != frvfdpic_got_section (info))
5763 return TRUE;
5764
5765 /* We can only relax when linking the main executable or a library
5766 that can't be dlopened. */
5767 if (! info->executable && ! (info->flags & DF_STATIC_TLS))
5768 return TRUE;
5769
5770 /* If there isn't a TLS section for this binary, we can't do
5771 anything about its TLS relocations (it probably doesn't have
5772 any. */
5773 if (elf_hash_table (info)->tls_sec == NULL)
5774 return TRUE;
5775
5776 memset (&gpinfo, 0, sizeof (gpinfo));
5777 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5778
5779 /* Now look for opportunities to relax, adjusting the GOT usage
5780 as needed. */
5781 htab_traverse (frvfdpic_relocs_info (info),
5782 _frvfdpic_relax_got_plt_entries,
5783 &gpinfo.g);
5784
5785 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5786 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5787 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5788 {
5789 /* Clear GOT and PLT assignments. */
5790 htab_traverse (frvfdpic_relocs_info (info),
5791 _frvfdpic_reset_got_plt_entries,
5792 NULL);
5793
5794 /* The owner of the TLS section is the output bfd. There should
5795 be a better way to get to it. */
5796 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5797 &gpinfo))
5798 return FALSE;
5799
5800 /* Repeat until we don't make any further changes. We could fail to
5801 introduce changes in a round if, for example, the 12-bit range is
5802 full, but we later release some space by getting rid of TLS
5803 descriptors in it. We have to repeat the whole process because
5804 we might have changed the size of a section processed before this
5805 one. */
5806 *again = TRUE;
5807 }
5808
5809 return TRUE;
5810 }
5811
5812 static bfd_boolean
5813 elf32_frvfdpic_modify_program_headers (bfd *output_bfd,
5814 struct bfd_link_info *info)
5815 {
5816 struct elf_obj_tdata *tdata = elf_tdata (output_bfd);
5817 struct elf_segment_map *m;
5818 Elf_Internal_Phdr *p;
5819
5820 /* objcopy and strip preserve what's already there using
5821 elf32_frvfdpic_copy_private_bfd_data (). */
5822 if (! info)
5823 return TRUE;
5824
5825 for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
5826 if (m->p_type == PT_GNU_STACK)
5827 break;
5828
5829 if (m)
5830 {
5831 struct elf_link_hash_entry *h;
5832
5833 /* Obtain the pointer to the __stacksize symbol. */
5834 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5835 FALSE, FALSE, FALSE);
5836 if (h)
5837 {
5838 while (h->root.type == bfd_link_hash_indirect
5839 || h->root.type == bfd_link_hash_warning)
5840 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5841 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
5842 }
5843
5844 /* Set the header p_memsz from the symbol value. We
5845 intentionally ignore the symbol section. */
5846 if (h && h->root.type == bfd_link_hash_defined)
5847 p->p_memsz = h->root.u.def.value;
5848 else
5849 p->p_memsz = DEFAULT_STACK_SIZE;
5850
5851 p->p_align = 8;
5852 }
5853
5854 return TRUE;
5855 }
5856
5857 /* Fill in code and data in dynamic sections. */
5858
5859 static bfd_boolean
5860 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5861 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5862 {
5863 /* Nothing to be done for non-FDPIC. */
5864 return TRUE;
5865 }
5866
5867 static bfd_boolean
5868 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5869 struct bfd_link_info *info)
5870 {
5871 bfd *dynobj;
5872 asection *sdyn;
5873
5874 dynobj = elf_hash_table (info)->dynobj;
5875
5876 if (frvfdpic_dynamic_got_plt_info (info))
5877 {
5878 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5879 }
5880 if (frvfdpic_got_section (info))
5881 {
5882 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5883 == (frvfdpic_gotrel_section (info)->reloc_count
5884 * sizeof (Elf32_External_Rel)));
5885
5886 if (frvfdpic_gotfixup_section (info))
5887 {
5888 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5889 bfd_vma got_value = hgot->root.u.def.value
5890 + hgot->root.u.def.section->output_section->vma
5891 + hgot->root.u.def.section->output_offset;
5892 struct bfd_link_hash_entry *hend;
5893
5894 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5895 got_value, 0);
5896
5897 if (frvfdpic_gotfixup_section (info)->size
5898 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5899 {
5900 error:
5901 (*_bfd_error_handler)
5902 ("LINKER BUG: .rofixup section size mismatch");
5903 return FALSE;
5904 }
5905
5906 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5907 FALSE, FALSE, TRUE);
5908 if (hend
5909 && (hend->type == bfd_link_hash_defined
5910 || hend->type == bfd_link_hash_defweak))
5911 {
5912 bfd_vma value =
5913 frvfdpic_gotfixup_section (info)->output_section->vma
5914 + frvfdpic_gotfixup_section (info)->output_offset
5915 + frvfdpic_gotfixup_section (info)->size
5916 - hend->u.def.section->output_section->vma
5917 - hend->u.def.section->output_offset;
5918 BFD_ASSERT (hend->u.def.value == value);
5919 if (hend->u.def.value != value)
5920 goto error;
5921 }
5922 }
5923 }
5924 if (frvfdpic_pltrel_section (info))
5925 {
5926 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5927 == (frvfdpic_pltrel_section (info)->reloc_count
5928 * sizeof (Elf32_External_Rel)));
5929 }
5930
5931
5932 if (elf_hash_table (info)->dynamic_sections_created)
5933 {
5934 Elf32_External_Dyn * dyncon;
5935 Elf32_External_Dyn * dynconend;
5936
5937 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5938
5939 BFD_ASSERT (sdyn != NULL);
5940
5941 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5942 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5943
5944 for (; dyncon < dynconend; dyncon++)
5945 {
5946 Elf_Internal_Dyn dyn;
5947
5948 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5949
5950 switch (dyn.d_tag)
5951 {
5952 default:
5953 break;
5954
5955 case DT_PLTGOT:
5956 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5957 + frvfdpic_got_section (info)->output_offset
5958 + frvfdpic_got_initial_offset (info);
5959 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5960 break;
5961
5962 case DT_JMPREL:
5963 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5964 ->output_section->vma
5965 + frvfdpic_pltrel_section (info)->output_offset;
5966 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5967 break;
5968
5969 case DT_PLTRELSZ:
5970 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5971 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5972 break;
5973 }
5974 }
5975 }
5976
5977 return TRUE;
5978 }
5979
5980 /* Adjust a symbol defined by a dynamic object and referenced by a
5981 regular object. */
5982
5983 static bfd_boolean
5984 elf32_frvfdpic_adjust_dynamic_symbol
5985 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5986 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5987 {
5988 bfd * dynobj;
5989
5990 dynobj = elf_hash_table (info)->dynobj;
5991
5992 /* Make sure we know what is going on here. */
5993 BFD_ASSERT (dynobj != NULL
5994 && (h->u.weakdef != NULL
5995 || (h->def_dynamic
5996 && h->ref_regular
5997 && !h->def_regular)));
5998
5999 /* If this is a weak symbol, and there is a real definition, the
6000 processor independent code will have arranged for us to see the
6001 real definition first, and we can just use the same value. */
6002 if (h->u.weakdef != NULL)
6003 {
6004 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
6005 || h->u.weakdef->root.type == bfd_link_hash_defweak);
6006 h->root.u.def.section = h->u.weakdef->root.u.def.section;
6007 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6008 }
6009
6010 return TRUE;
6011 }
6012
6013 /* Perform any actions needed for dynamic symbols. */
6014
6015 static bfd_boolean
6016 elf32_frvfdpic_finish_dynamic_symbol
6017 (bfd *output_bfd ATTRIBUTE_UNUSED,
6018 struct bfd_link_info *info ATTRIBUTE_UNUSED,
6019 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
6020 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
6021 {
6022 return TRUE;
6023 }
6024
6025 /* Decide whether to attempt to turn absptr or lsda encodings in
6026 shared libraries into pcrel within the given input section. */
6027
6028 static bfd_boolean
6029 frvfdpic_elf_use_relative_eh_frame
6030 (bfd *input_bfd ATTRIBUTE_UNUSED,
6031 struct bfd_link_info *info ATTRIBUTE_UNUSED,
6032 asection *eh_frame_section ATTRIBUTE_UNUSED)
6033 {
6034 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
6035 return FALSE;
6036 }
6037
6038 /* Adjust the contents of an eh_frame_hdr section before they're output. */
6039
6040 static bfd_byte
6041 frvfdpic_elf_encode_eh_address (bfd *abfd,
6042 struct bfd_link_info *info,
6043 asection *osec, bfd_vma offset,
6044 asection *loc_sec, bfd_vma loc_offset,
6045 bfd_vma *encoded)
6046 {
6047 struct elf_link_hash_entry *h;
6048
6049 h = elf_hash_table (info)->hgot;
6050 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
6051
6052 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
6053 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
6054 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
6055 loc_sec, loc_offset, encoded);
6056
6057 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
6058 == (_frvfdpic_osec_to_segment
6059 (abfd, h->root.u.def.section->output_section)));
6060
6061 *encoded = osec->vma + offset
6062 - (h->root.u.def.value
6063 + h->root.u.def.section->output_section->vma
6064 + h->root.u.def.section->output_offset);
6065
6066 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
6067 }
6068
6069 /* Look through the relocs for a section during the first phase.
6070
6071 Besides handling virtual table relocs for gc, we have to deal with
6072 all sorts of PIC-related relocations. We describe below the
6073 general plan on how to handle such relocations, even though we only
6074 collect information at this point, storing them in hash tables for
6075 perusal of later passes.
6076
6077 32 relocations are propagated to the linker output when creating
6078 position-independent output. LO16 and HI16 relocations are not
6079 supposed to be encountered in this case.
6080
6081 LABEL16 should always be resolvable by the linker, since it's only
6082 used by branches.
6083
6084 LABEL24, on the other hand, is used by calls. If it turns out that
6085 the target of a call is a dynamic symbol, a PLT entry must be
6086 created for it, which triggers the creation of a private function
6087 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
6088
6089 GPREL relocations require the referenced symbol to be in the same
6090 segment as _gp, but this can only be checked later.
6091
6092 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
6093 exist. LABEL24 might as well, since it may require a PLT entry,
6094 that will require a got.
6095
6096 Non-FUNCDESC GOT relocations require a GOT entry to be created
6097 regardless of whether the symbol is dynamic. However, since a
6098 global symbol that turns out to not be exported may have the same
6099 address of a non-dynamic symbol, we don't assign GOT entries at
6100 this point, such that we can share them in this case. A relocation
6101 for the GOT entry always has to be created, be it to offset a
6102 private symbol by the section load address, be it to get the symbol
6103 resolved dynamically.
6104
6105 FUNCDESC GOT relocations require a GOT entry to be created, and
6106 handled as if a FUNCDESC relocation was applied to the GOT entry in
6107 an object file.
6108
6109 FUNCDESC relocations referencing a symbol that turns out to NOT be
6110 dynamic cause a private function descriptor to be created. The
6111 FUNCDESC relocation then decays to a 32 relocation that points at
6112 the private descriptor. If the symbol is dynamic, the FUNCDESC
6113 relocation is propagated to the linker output, such that the
6114 dynamic linker creates the canonical descriptor, pointing to the
6115 dynamically-resolved definition of the function.
6116
6117 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
6118 symbols that are assigned to the same segment as the GOT, but we
6119 can only check this later, after we know the complete set of
6120 symbols defined and/or exported.
6121
6122 FUNCDESC GOTOFF relocations require a function descriptor to be
6123 created and, unless lazy binding is disabled or the symbol is not
6124 dynamic, a lazy PLT entry. Since we can't tell at this point
6125 whether a symbol is going to be dynamic, we have to decide later
6126 whether to create a lazy PLT entry or bind the descriptor directly
6127 to the private function.
6128
6129 FUNCDESC_VALUE relocations are not supposed to be present in object
6130 files, but they may very well be simply propagated to the linker
6131 output, since they have no side effect.
6132
6133
6134 A function descriptor always requires a FUNCDESC_VALUE relocation.
6135 Whether it's in .plt.rel or not depends on whether lazy binding is
6136 enabled and on whether the referenced symbol is dynamic.
6137
6138 The existence of a lazy PLT requires the resolverStub lazy PLT
6139 entry to be present.
6140
6141
6142 As for assignment of GOT, PLT and lazy PLT entries, and private
6143 descriptors, we might do them all sequentially, but we can do
6144 better than that. For example, we can place GOT entries and
6145 private function descriptors referenced using 12-bit operands
6146 closer to the PIC register value, such that these relocations don't
6147 overflow. Those that are only referenced with LO16 relocations
6148 could come next, but we may as well place PLT-required function
6149 descriptors in the 12-bit range to make them shorter. Symbols
6150 referenced with LO16/HI16 may come next, but we may place
6151 additional function descriptors in the 16-bit range if we can
6152 reliably tell that we've already placed entries that are ever
6153 referenced with only LO16. PLT entries are therefore generated as
6154 small as possible, while not introducing relocation overflows in
6155 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
6156 generated before or after PLT entries, but not intermingled with
6157 them, such that we can have more lazy PLT entries in range for a
6158 branch to the resolverStub. The resolverStub should be emitted at
6159 the most distant location from the first lazy PLT entry such that
6160 it's still in range for a branch, or closer, if there isn't a need
6161 for so many lazy PLT entries. Additional lazy PLT entries may be
6162 emitted after the resolverStub, as long as branches are still in
6163 range. If the branch goes out of range, longer lazy PLT entries
6164 are emitted.
6165
6166 We could further optimize PLT and lazy PLT entries by giving them
6167 priority in assignment to closer-to-gr17 locations depending on the
6168 number of occurrences of references to them (assuming a function
6169 that's called more often is more important for performance, so its
6170 PLT entry should be faster), or taking hints from the compiler.
6171 Given infinite time and money... :-) */
6172
6173 static bfd_boolean
6174 elf32_frv_check_relocs (abfd, info, sec, relocs)
6175 bfd *abfd;
6176 struct bfd_link_info *info;
6177 asection *sec;
6178 const Elf_Internal_Rela *relocs;
6179 {
6180 Elf_Internal_Shdr *symtab_hdr;
6181 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
6182 const Elf_Internal_Rela *rel;
6183 const Elf_Internal_Rela *rel_end;
6184 bfd *dynobj;
6185 struct frvfdpic_relocs_info *picrel;
6186
6187 if (info->relocatable)
6188 return TRUE;
6189
6190 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6191 sym_hashes = elf_sym_hashes (abfd);
6192 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
6193 if (!elf_bad_symtab (abfd))
6194 sym_hashes_end -= symtab_hdr->sh_info;
6195
6196 dynobj = elf_hash_table (info)->dynobj;
6197 rel_end = relocs + sec->reloc_count;
6198 for (rel = relocs; rel < rel_end; rel++)
6199 {
6200 struct elf_link_hash_entry *h;
6201 unsigned long r_symndx;
6202
6203 r_symndx = ELF32_R_SYM (rel->r_info);
6204 if (r_symndx < symtab_hdr->sh_info)
6205 h = NULL;
6206 else
6207 {
6208 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6209 while (h->root.type == bfd_link_hash_indirect
6210 || h->root.type == bfd_link_hash_warning)
6211 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6212 }
6213
6214 switch (ELF32_R_TYPE (rel->r_info))
6215 {
6216 case R_FRV_GETTLSOFF:
6217 case R_FRV_TLSDESC_VALUE:
6218 case R_FRV_GOTTLSDESC12:
6219 case R_FRV_GOTTLSDESCHI:
6220 case R_FRV_GOTTLSDESCLO:
6221 case R_FRV_GOTTLSOFF12:
6222 case R_FRV_GOTTLSOFFHI:
6223 case R_FRV_GOTTLSOFFLO:
6224 case R_FRV_TLSOFF:
6225 case R_FRV_GOT12:
6226 case R_FRV_GOTHI:
6227 case R_FRV_GOTLO:
6228 case R_FRV_FUNCDESC_GOT12:
6229 case R_FRV_FUNCDESC_GOTHI:
6230 case R_FRV_FUNCDESC_GOTLO:
6231 case R_FRV_GOTOFF12:
6232 case R_FRV_GOTOFFHI:
6233 case R_FRV_GOTOFFLO:
6234 case R_FRV_FUNCDESC_GOTOFF12:
6235 case R_FRV_FUNCDESC_GOTOFFHI:
6236 case R_FRV_FUNCDESC_GOTOFFLO:
6237 case R_FRV_FUNCDESC:
6238 case R_FRV_FUNCDESC_VALUE:
6239 case R_FRV_TLSMOFF12:
6240 case R_FRV_TLSMOFFHI:
6241 case R_FRV_TLSMOFFLO:
6242 case R_FRV_TLSMOFF:
6243 if (! IS_FDPIC (abfd))
6244 goto bad_reloc;
6245 /* Fall through. */
6246 case R_FRV_GPREL12:
6247 case R_FRV_GPRELU12:
6248 case R_FRV_GPRELHI:
6249 case R_FRV_GPRELLO:
6250 case R_FRV_LABEL24:
6251 case R_FRV_32:
6252 if (! dynobj)
6253 {
6254 elf_hash_table (info)->dynobj = dynobj = abfd;
6255 if (! _frv_create_got_section (abfd, info))
6256 return FALSE;
6257 }
6258 if (! IS_FDPIC (abfd))
6259 {
6260 picrel = NULL;
6261 break;
6262 }
6263 if (h != NULL)
6264 {
6265 if (h->dynindx == -1)
6266 switch (ELF_ST_VISIBILITY (h->other))
6267 {
6268 case STV_INTERNAL:
6269 case STV_HIDDEN:
6270 break;
6271 default:
6272 bfd_elf_link_record_dynamic_symbol (info, h);
6273 break;
6274 }
6275 picrel
6276 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6277 abfd, h,
6278 rel->r_addend, INSERT);
6279 }
6280 else
6281 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6282 (info), abfd, r_symndx,
6283 rel->r_addend, INSERT);
6284 if (! picrel)
6285 return FALSE;
6286 break;
6287
6288 default:
6289 picrel = NULL;
6290 break;
6291 }
6292
6293 switch (ELF32_R_TYPE (rel->r_info))
6294 {
6295 case R_FRV_LABEL24:
6296 if (IS_FDPIC (abfd))
6297 picrel->call = 1;
6298 break;
6299
6300 case R_FRV_FUNCDESC_VALUE:
6301 picrel->relocsfdv++;
6302 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6303 picrel->relocs32--;
6304 /* Fall through. */
6305
6306 case R_FRV_32:
6307 if (! IS_FDPIC (abfd))
6308 break;
6309
6310 picrel->sym = 1;
6311 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6312 picrel->relocs32++;
6313 break;
6314
6315 case R_FRV_GOT12:
6316 picrel->got12 = 1;
6317 break;
6318
6319 case R_FRV_GOTHI:
6320 case R_FRV_GOTLO:
6321 picrel->gothilo = 1;
6322 break;
6323
6324 case R_FRV_FUNCDESC_GOT12:
6325 picrel->fdgot12 = 1;
6326 break;
6327
6328 case R_FRV_FUNCDESC_GOTHI:
6329 case R_FRV_FUNCDESC_GOTLO:
6330 picrel->fdgothilo = 1;
6331 break;
6332
6333 case R_FRV_GOTOFF12:
6334 case R_FRV_GOTOFFHI:
6335 case R_FRV_GOTOFFLO:
6336 picrel->gotoff = 1;
6337 break;
6338
6339 case R_FRV_FUNCDESC_GOTOFF12:
6340 picrel->fdgoff12 = 1;
6341 break;
6342
6343 case R_FRV_FUNCDESC_GOTOFFHI:
6344 case R_FRV_FUNCDESC_GOTOFFLO:
6345 picrel->fdgoffhilo = 1;
6346 break;
6347
6348 case R_FRV_FUNCDESC:
6349 picrel->fd = 1;
6350 picrel->relocsfd++;
6351 break;
6352
6353 case R_FRV_GETTLSOFF:
6354 picrel->tlsplt = 1;
6355 break;
6356
6357 case R_FRV_TLSDESC_VALUE:
6358 picrel->relocstlsd++;
6359 goto bad_reloc;
6360
6361 case R_FRV_GOTTLSDESC12:
6362 picrel->tlsdesc12 = 1;
6363 break;
6364
6365 case R_FRV_GOTTLSDESCHI:
6366 case R_FRV_GOTTLSDESCLO:
6367 picrel->tlsdeschilo = 1;
6368 break;
6369
6370 case R_FRV_TLSMOFF12:
6371 case R_FRV_TLSMOFFHI:
6372 case R_FRV_TLSMOFFLO:
6373 case R_FRV_TLSMOFF:
6374 break;
6375
6376 case R_FRV_GOTTLSOFF12:
6377 picrel->tlsoff12 = 1;
6378 info->flags |= DF_STATIC_TLS;
6379 break;
6380
6381 case R_FRV_GOTTLSOFFHI:
6382 case R_FRV_GOTTLSOFFLO:
6383 picrel->tlsoffhilo = 1;
6384 info->flags |= DF_STATIC_TLS;
6385 break;
6386
6387 case R_FRV_TLSOFF:
6388 picrel->relocstlsoff++;
6389 info->flags |= DF_STATIC_TLS;
6390 goto bad_reloc;
6391
6392 /* This relocation describes the C++ object vtable hierarchy.
6393 Reconstruct it for later use during GC. */
6394 case R_FRV_GNU_VTINHERIT:
6395 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6396 return FALSE;
6397 break;
6398
6399 /* This relocation describes which C++ vtable entries are actually
6400 used. Record for later use during GC. */
6401 case R_FRV_GNU_VTENTRY:
6402 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6403 return FALSE;
6404 break;
6405
6406 case R_FRV_LABEL16:
6407 case R_FRV_LO16:
6408 case R_FRV_HI16:
6409 case R_FRV_GPREL12:
6410 case R_FRV_GPRELU12:
6411 case R_FRV_GPREL32:
6412 case R_FRV_GPRELHI:
6413 case R_FRV_GPRELLO:
6414 case R_FRV_TLSDESC_RELAX:
6415 case R_FRV_GETTLSOFF_RELAX:
6416 case R_FRV_TLSOFF_RELAX:
6417 break;
6418
6419 default:
6420 bad_reloc:
6421 (*_bfd_error_handler)
6422 (_("%B: unsupported relocation type %i"),
6423 abfd, ELF32_R_TYPE (rel->r_info));
6424 return FALSE;
6425 }
6426 }
6427
6428 return TRUE;
6429 }
6430
6431 \f
6432 /* Return the machine subcode from the ELF e_flags header. */
6433
6434 static int
6435 elf32_frv_machine (abfd)
6436 bfd *abfd;
6437 {
6438 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6439 {
6440 default: break;
6441 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6442 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6443 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6444 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6445 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6446 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6447 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6448 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6449 }
6450
6451 return bfd_mach_frv;
6452 }
6453
6454 /* Set the right machine number for a FRV ELF file. */
6455
6456 static bfd_boolean
6457 elf32_frv_object_p (abfd)
6458 bfd *abfd;
6459 {
6460 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6461 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6462 == (IS_FDPIC (abfd)));
6463 }
6464 \f
6465 /* Function to set the ELF flag bits. */
6466
6467 static bfd_boolean
6468 frv_elf_set_private_flags (abfd, flags)
6469 bfd *abfd;
6470 flagword flags;
6471 {
6472 elf_elfheader (abfd)->e_flags = flags;
6473 elf_flags_init (abfd) = TRUE;
6474 return TRUE;
6475 }
6476
6477 /* Copy backend specific data from one object module to another. */
6478
6479 static bfd_boolean
6480 frv_elf_copy_private_bfd_data (ibfd, obfd)
6481 bfd *ibfd;
6482 bfd *obfd;
6483 {
6484 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6485 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6486 return TRUE;
6487
6488 BFD_ASSERT (!elf_flags_init (obfd)
6489 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
6490
6491 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6492 elf_flags_init (obfd) = TRUE;
6493 return TRUE;
6494 }
6495
6496 /* Return true if the architecture described by elf header flag
6497 EXTENSION is an extension of the architecture described by BASE. */
6498
6499 static bfd_boolean
6500 frv_elf_arch_extension_p (flagword base, flagword extension)
6501 {
6502 if (base == extension)
6503 return TRUE;
6504
6505 /* CPU_GENERIC code can be merged with code for a specific
6506 architecture, in which case the result is marked as being
6507 for the specific architecture. Everything is therefore
6508 an extension of CPU_GENERIC. */
6509 if (base == EF_FRV_CPU_GENERIC)
6510 return TRUE;
6511
6512 if (extension == EF_FRV_CPU_FR450)
6513 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6514 return TRUE;
6515
6516 if (extension == EF_FRV_CPU_FR405)
6517 if (base == EF_FRV_CPU_FR400)
6518 return TRUE;
6519
6520 return FALSE;
6521 }
6522
6523 static bfd_boolean
6524 elf32_frvfdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
6525 {
6526 unsigned i;
6527
6528 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6529 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6530 return TRUE;
6531
6532 if (! frv_elf_copy_private_bfd_data (ibfd, obfd))
6533 return FALSE;
6534
6535 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
6536 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
6537 return TRUE;
6538
6539 /* Copy the stack size. */
6540 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
6541 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
6542 {
6543 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
6544
6545 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
6546 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
6547 {
6548 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
6549
6550 /* Rewrite the phdrs, since we're only called after they
6551 were first written. */
6552 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
6553 ->s->sizeof_ehdr, SEEK_SET) != 0
6554 || get_elf_backend_data (obfd)->s
6555 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
6556 elf_elfheader (obfd)->e_phnum) != 0)
6557 return FALSE;
6558 break;
6559 }
6560
6561 break;
6562 }
6563
6564 return TRUE;
6565 }
6566
6567 /* Merge backend specific data from an object file to the output
6568 object file when linking. */
6569
6570 static bfd_boolean
6571 frv_elf_merge_private_bfd_data (ibfd, obfd)
6572 bfd *ibfd;
6573 bfd *obfd;
6574 {
6575 flagword old_flags, old_partial;
6576 flagword new_flags, new_partial;
6577 bfd_boolean error = FALSE;
6578 char new_opt[80];
6579 char old_opt[80];
6580
6581 new_opt[0] = old_opt[0] = '\0';
6582 new_flags = elf_elfheader (ibfd)->e_flags;
6583 old_flags = elf_elfheader (obfd)->e_flags;
6584
6585 if (new_flags & EF_FRV_FDPIC)
6586 new_flags &= ~EF_FRV_PIC;
6587
6588 #ifdef DEBUG
6589 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6590 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6591 bfd_get_filename (ibfd));
6592 #endif
6593
6594 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6595 {
6596 elf_flags_init (obfd) = TRUE;
6597 old_flags = new_flags;
6598 }
6599
6600 else if (new_flags == old_flags) /* Compatible flags are ok. */
6601 ;
6602
6603 else /* Possibly incompatible flags. */
6604 {
6605 /* Warn if different # of gprs are used. Note, 0 means nothing is
6606 said about the size of gprs. */
6607 new_partial = (new_flags & EF_FRV_GPR_MASK);
6608 old_partial = (old_flags & EF_FRV_GPR_MASK);
6609 if (new_partial == old_partial)
6610 ;
6611
6612 else if (new_partial == 0)
6613 ;
6614
6615 else if (old_partial == 0)
6616 old_flags |= new_partial;
6617
6618 else
6619 {
6620 switch (new_partial)
6621 {
6622 default: strcat (new_opt, " -mgpr-??"); break;
6623 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6624 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6625 }
6626
6627 switch (old_partial)
6628 {
6629 default: strcat (old_opt, " -mgpr-??"); break;
6630 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6631 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6632 }
6633 }
6634
6635 /* Warn if different # of fprs are used. Note, 0 means nothing is
6636 said about the size of fprs. */
6637 new_partial = (new_flags & EF_FRV_FPR_MASK);
6638 old_partial = (old_flags & EF_FRV_FPR_MASK);
6639 if (new_partial == old_partial)
6640 ;
6641
6642 else if (new_partial == 0)
6643 ;
6644
6645 else if (old_partial == 0)
6646 old_flags |= new_partial;
6647
6648 else
6649 {
6650 switch (new_partial)
6651 {
6652 default: strcat (new_opt, " -mfpr-?"); break;
6653 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6654 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6655 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6656 }
6657
6658 switch (old_partial)
6659 {
6660 default: strcat (old_opt, " -mfpr-?"); break;
6661 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6662 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6663 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6664 }
6665 }
6666
6667 /* Warn if different dword support was used. Note, 0 means nothing is
6668 said about the dword support. */
6669 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6670 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6671 if (new_partial == old_partial)
6672 ;
6673
6674 else if (new_partial == 0)
6675 ;
6676
6677 else if (old_partial == 0)
6678 old_flags |= new_partial;
6679
6680 else
6681 {
6682 switch (new_partial)
6683 {
6684 default: strcat (new_opt, " -mdword-?"); break;
6685 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6686 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6687 }
6688
6689 switch (old_partial)
6690 {
6691 default: strcat (old_opt, " -mdword-?"); break;
6692 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6693 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6694 }
6695 }
6696
6697 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6698 feature is used. */
6699 old_flags |= new_flags & (EF_FRV_DOUBLE
6700 | EF_FRV_MEDIA
6701 | EF_FRV_MULADD
6702 | EF_FRV_NON_PIC_RELOCS);
6703
6704 /* If any module was compiled without -G0, clear the G0 bit. */
6705 old_flags = ((old_flags & ~ EF_FRV_G0)
6706 | (old_flags & new_flags & EF_FRV_G0));
6707
6708 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6709 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6710 | (old_flags & new_flags & EF_FRV_NOPACK));
6711
6712 /* We don't have to do anything if the pic flags are the same, or the new
6713 module(s) were compiled with -mlibrary-pic. */
6714 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6715 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6716 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6717 ;
6718
6719 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6720 flags if any from the new module. */
6721 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6722 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6723
6724 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6725 else if (new_partial != 0 && old_partial != 0)
6726 old_flags |= new_partial;
6727
6728 /* One module was compiled for pic and the other was not, see if we have
6729 had any relocations that are not pic-safe. */
6730 else
6731 {
6732 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6733 old_flags |= new_partial;
6734 else
6735 {
6736 old_flags &= ~ EF_FRV_PIC_FLAGS;
6737 #ifndef FRV_NO_PIC_ERROR
6738 error = TRUE;
6739 (*_bfd_error_handler)
6740 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6741 bfd_get_filename (ibfd),
6742 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6743 #endif
6744 }
6745 }
6746
6747 /* Warn if different cpu is used (allow a specific cpu to override
6748 the generic cpu). */
6749 new_partial = (new_flags & EF_FRV_CPU_MASK);
6750 old_partial = (old_flags & EF_FRV_CPU_MASK);
6751 if (frv_elf_arch_extension_p (new_partial, old_partial))
6752 ;
6753
6754 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6755 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6756
6757 else
6758 {
6759 switch (new_partial)
6760 {
6761 default: strcat (new_opt, " -mcpu=?"); break;
6762 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6763 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6764 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6765 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6766 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6767 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6768 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6769 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6770 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6771 }
6772
6773 switch (old_partial)
6774 {
6775 default: strcat (old_opt, " -mcpu=?"); break;
6776 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6777 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6778 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6779 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6780 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6781 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6782 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6783 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6784 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6785 }
6786 }
6787
6788 /* Print out any mismatches from above. */
6789 if (new_opt[0])
6790 {
6791 error = TRUE;
6792 (*_bfd_error_handler)
6793 (_("%s: compiled with %s and linked with modules compiled with %s"),
6794 bfd_get_filename (ibfd), new_opt, old_opt);
6795 }
6796
6797 /* Warn about any other mismatches */
6798 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6799 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6800 if (new_partial != old_partial)
6801 {
6802 old_flags |= new_partial;
6803 error = TRUE;
6804 (*_bfd_error_handler)
6805 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6806 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6807 }
6808 }
6809
6810 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6811 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6812 old_flags |= EF_FRV_NOPACK;
6813
6814 /* Update the old flags now with changes made above. */
6815 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6816 elf_elfheader (obfd)->e_flags = old_flags;
6817 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6818 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6819
6820 if (((new_flags & EF_FRV_FDPIC) == 0)
6821 != (! IS_FDPIC (ibfd)))
6822 {
6823 error = TRUE;
6824 if (IS_FDPIC (obfd))
6825 (*_bfd_error_handler)
6826 (_("%s: cannot link non-fdpic object file into fdpic executable"),
6827 bfd_get_filename (ibfd));
6828 else
6829 (*_bfd_error_handler)
6830 (_("%s: cannot link fdpic object file into non-fdpic executable"),
6831 bfd_get_filename (ibfd));
6832 }
6833
6834 if (error)
6835 bfd_set_error (bfd_error_bad_value);
6836
6837 return !error;
6838 }
6839
6840 \f
6841 bfd_boolean
6842 frv_elf_print_private_bfd_data (abfd, ptr)
6843 bfd *abfd;
6844 PTR ptr;
6845 {
6846 FILE *file = (FILE *) ptr;
6847 flagword flags;
6848
6849 BFD_ASSERT (abfd != NULL && ptr != NULL);
6850
6851 /* Print normal ELF private data. */
6852 _bfd_elf_print_private_bfd_data (abfd, ptr);
6853
6854 flags = elf_elfheader (abfd)->e_flags;
6855 fprintf (file, _("private flags = 0x%lx:"), (long)flags);
6856
6857 switch (flags & EF_FRV_CPU_MASK)
6858 {
6859 default: break;
6860 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6861 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6862 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6863 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6864 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6865 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6866 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6867 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6868 }
6869
6870 switch (flags & EF_FRV_GPR_MASK)
6871 {
6872 default: break;
6873 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6874 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6875 }
6876
6877 switch (flags & EF_FRV_FPR_MASK)
6878 {
6879 default: break;
6880 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6881 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6882 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6883 }
6884
6885 switch (flags & EF_FRV_DWORD_MASK)
6886 {
6887 default: break;
6888 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6889 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6890 }
6891
6892 if (flags & EF_FRV_DOUBLE)
6893 fprintf (file, " -mdouble");
6894
6895 if (flags & EF_FRV_MEDIA)
6896 fprintf (file, " -mmedia");
6897
6898 if (flags & EF_FRV_MULADD)
6899 fprintf (file, " -mmuladd");
6900
6901 if (flags & EF_FRV_PIC)
6902 fprintf (file, " -fpic");
6903
6904 if (flags & EF_FRV_BIGPIC)
6905 fprintf (file, " -fPIC");
6906
6907 if (flags & EF_FRV_LIBPIC)
6908 fprintf (file, " -mlibrary-pic");
6909
6910 if (flags & EF_FRV_FDPIC)
6911 fprintf (file, " -mfdpic");
6912
6913 if (flags & EF_FRV_NON_PIC_RELOCS)
6914 fprintf (file, " non-pic relocations");
6915
6916 if (flags & EF_FRV_G0)
6917 fprintf (file, " -G0");
6918
6919 fputc ('\n', file);
6920 return TRUE;
6921 }
6922
6923 \f
6924 /* Support for core dump NOTE sections. */
6925
6926 static bfd_boolean
6927 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6928 {
6929 int offset;
6930 unsigned int raw_size;
6931
6932 switch (note->descsz)
6933 {
6934 default:
6935 return FALSE;
6936
6937 /* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
6938 hardcoded offsets and sizes listed below (and contained within
6939 this lexical block) refer to fields in the target's elf_prstatus
6940 struct. */
6941 case 268:
6942 /* `pr_cursig' is at offset 12. */
6943 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
6944
6945 /* `pr_pid' is at offset 24. */
6946 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
6947
6948 /* `pr_reg' is at offset 72. */
6949 offset = 72;
6950
6951 /* Most grok_prstatus implementations set `raw_size' to the size
6952 of the pr_reg field. For Linux/FRV, we set `raw_size' to be
6953 the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6954 and `pr_interp_fdpic_loadmap', both of which (by design)
6955 immediately follow `pr_reg'. This will allow these fields to
6956 be viewed by GDB as registers.
6957
6958 `pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
6959 `pr_interp_fdpic_loadmap' are 4 bytes each. */
6960 raw_size = 184 + 4 + 4;
6961
6962 break;
6963 }
6964
6965 /* Make a ".reg/999" section. */
6966 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6967 note->descpos + offset);
6968 }
6969
6970 static bfd_boolean
6971 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6972 {
6973 switch (note->descsz)
6974 {
6975 default:
6976 return FALSE;
6977
6978 /* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
6979 case 124:
6980
6981 /* `pr_fname' is found at offset 28 and is 16 bytes long. */
6982 elf_tdata (abfd)->core_program
6983 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6984
6985 /* `pr_psargs' is found at offset 44 and is 80 bytes long. */
6986 elf_tdata (abfd)->core_command
6987 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6988 }
6989
6990 /* Note that for some reason, a spurious space is tacked
6991 onto the end of the args in some (at least one anyway)
6992 implementations, so strip it off if it exists. */
6993
6994 {
6995 char *command = elf_tdata (abfd)->core_command;
6996 int n = strlen (command);
6997
6998 if (0 < n && command[n - 1] == ' ')
6999 command[n - 1] = '\0';
7000 }
7001
7002 return TRUE;
7003 }
7004 #define ELF_ARCH bfd_arch_frv
7005 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
7006 #define ELF_MAXPAGESIZE 0x1000
7007
7008 #define TARGET_BIG_SYM bfd_elf32_frv_vec
7009 #define TARGET_BIG_NAME "elf32-frv"
7010
7011 #define elf_info_to_howto frv_info_to_howto_rela
7012 #define elf_backend_relocate_section elf32_frv_relocate_section
7013 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
7014 #define elf_backend_check_relocs elf32_frv_check_relocs
7015 #define elf_backend_object_p elf32_frv_object_p
7016 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
7017
7018 #define elf_backend_can_gc_sections 1
7019 #define elf_backend_rela_normal 1
7020
7021 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
7022 #define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
7023 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
7024 #define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data
7025 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
7026 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
7027
7028 #define elf_backend_want_got_sym 1
7029 #define elf_backend_got_header_size 0
7030 #define elf_backend_want_got_plt 0
7031 #define elf_backend_plt_readonly 1
7032 #define elf_backend_want_plt_sym 0
7033 #define elf_backend_plt_header_size 0
7034
7035 #define elf_backend_finish_dynamic_sections \
7036 elf32_frv_finish_dynamic_sections
7037
7038 #define elf_backend_grok_prstatus elf32_frv_grok_prstatus
7039 #define elf_backend_grok_psinfo elf32_frv_grok_psinfo
7040
7041 #include "elf32-target.h"
7042
7043 #undef ELF_MAXPAGESIZE
7044 #define ELF_MAXPAGESIZE 0x4000
7045
7046 #undef TARGET_BIG_SYM
7047 #define TARGET_BIG_SYM bfd_elf32_frvfdpic_vec
7048 #undef TARGET_BIG_NAME
7049 #define TARGET_BIG_NAME "elf32-frvfdpic"
7050 #undef elf32_bed
7051 #define elf32_bed elf32_frvfdpic_bed
7052
7053 #undef elf_info_to_howto_rel
7054 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
7055
7056 #undef bfd_elf32_bfd_link_hash_table_create
7057 #define bfd_elf32_bfd_link_hash_table_create \
7058 frvfdpic_elf_link_hash_table_create
7059 #undef elf_backend_always_size_sections
7060 #define elf_backend_always_size_sections \
7061 elf32_frvfdpic_always_size_sections
7062 #undef elf_backend_modify_program_headers
7063 #define elf_backend_modify_program_headers \
7064 elf32_frvfdpic_modify_program_headers
7065 #undef bfd_elf32_bfd_copy_private_bfd_data
7066 #define bfd_elf32_bfd_copy_private_bfd_data \
7067 elf32_frvfdpic_copy_private_bfd_data
7068
7069 #undef elf_backend_create_dynamic_sections
7070 #define elf_backend_create_dynamic_sections \
7071 elf32_frvfdpic_create_dynamic_sections
7072 #undef elf_backend_adjust_dynamic_symbol
7073 #define elf_backend_adjust_dynamic_symbol \
7074 elf32_frvfdpic_adjust_dynamic_symbol
7075 #undef elf_backend_size_dynamic_sections
7076 #define elf_backend_size_dynamic_sections \
7077 elf32_frvfdpic_size_dynamic_sections
7078 #undef bfd_elf32_bfd_relax_section
7079 #define bfd_elf32_bfd_relax_section \
7080 elf32_frvfdpic_relax_section
7081 #undef elf_backend_finish_dynamic_symbol
7082 #define elf_backend_finish_dynamic_symbol \
7083 elf32_frvfdpic_finish_dynamic_symbol
7084 #undef elf_backend_finish_dynamic_sections
7085 #define elf_backend_finish_dynamic_sections \
7086 elf32_frvfdpic_finish_dynamic_sections
7087
7088 #undef elf_backend_discard_info
7089 #define elf_backend_discard_info \
7090 frvfdpic_elf_discard_info
7091 #undef elf_backend_can_make_relative_eh_frame
7092 #define elf_backend_can_make_relative_eh_frame \
7093 frvfdpic_elf_use_relative_eh_frame
7094 #undef elf_backend_can_make_lsda_relative_eh_frame
7095 #define elf_backend_can_make_lsda_relative_eh_frame \
7096 frvfdpic_elf_use_relative_eh_frame
7097 #undef elf_backend_encode_eh_address
7098 #define elf_backend_encode_eh_address \
7099 frvfdpic_elf_encode_eh_address
7100
7101 #undef elf_backend_may_use_rel_p
7102 #define elf_backend_may_use_rel_p 1
7103 #undef elf_backend_may_use_rela_p
7104 #define elf_backend_may_use_rela_p 1
7105 /* We use REL for dynamic relocations only. */
7106 #undef elf_backend_default_use_rela_p
7107 #define elf_backend_default_use_rela_p 1
7108
7109 #undef elf_backend_omit_section_dynsym
7110 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
7111
7112 #include "elf32-target.h"
A mirror of the official binutils-gdb repository