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Add c-format tags to translatable strings with more than one argument-using formattin...
[deliverable/binutils-gdb.git] / bfd / elf32-frv.c
1 /* FRV-specific support for 32-bit ELF.
2 Copyright (C) 2002-2016 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 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 "dwarf2.h"
27 #include "hashtab.h"
28
29 /* Forward declarations. */
30
31
32 static reloc_howto_type elf32_frv_howto_table [] =
33 {
34 /* This reloc does nothing. */
35 HOWTO (R_FRV_NONE, /* type */
36 0, /* rightshift */
37 3, /* size (0 = byte, 1 = short, 2 = long) */
38 0, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_dont, /* complain_on_overflow */
42 bfd_elf_generic_reloc, /* special_function */
43 "R_FRV_NONE", /* name */
44 FALSE, /* partial_inplace */
45 0, /* src_mask */
46 0, /* dst_mask */
47 FALSE), /* pcrel_offset */
48
49 /* A 32 bit absolute relocation. */
50 HOWTO (R_FRV_32, /* type */
51 0, /* rightshift */
52 2, /* size (0 = byte, 1 = short, 2 = long) */
53 32, /* bitsize */
54 FALSE, /* pc_relative */
55 0, /* bitpos */
56 complain_overflow_bitfield, /* complain_on_overflow */
57 bfd_elf_generic_reloc, /* special_function */
58 "R_FRV_32", /* name */
59 FALSE, /* partial_inplace */
60 0xffffffff, /* src_mask */
61 0xffffffff, /* dst_mask */
62 FALSE), /* pcrel_offset */
63
64 /* A 16 bit pc-relative relocation. */
65 HOWTO (R_FRV_LABEL16, /* type */
66 2, /* rightshift */
67 2, /* size (0 = byte, 1 = short, 2 = long) */
68 16, /* bitsize */
69 TRUE, /* pc_relative */
70 0, /* bitpos */
71 complain_overflow_signed, /* complain_on_overflow */
72 bfd_elf_generic_reloc, /* special_function */
73 "R_FRV_LABEL16", /* name */
74 FALSE, /* partial_inplace */
75 0xffff, /* src_mask */
76 0xffff, /* dst_mask */
77 TRUE), /* pcrel_offset */
78
79 /* A 24-bit pc-relative relocation. */
80 HOWTO (R_FRV_LABEL24, /* type */
81 2, /* rightshift */
82 2, /* size (0 = byte, 1 = short, 2 = long) */
83 26, /* bitsize */
84 TRUE, /* pc_relative */
85 0, /* bitpos */
86 complain_overflow_bitfield, /* complain_on_overflow */
87 bfd_elf_generic_reloc, /* special_function */
88 "R_FRV_LABEL24", /* name */
89 FALSE, /* partial_inplace */
90 0x7e03ffff, /* src_mask */
91 0x7e03ffff, /* dst_mask */
92 TRUE), /* pcrel_offset */
93
94 HOWTO (R_FRV_LO16, /* type */
95 0, /* rightshift */
96 2, /* size (0 = byte, 1 = short, 2 = long) */
97 16, /* bitsize */
98 FALSE, /* pc_relative */
99 0, /* bitpos */
100 complain_overflow_dont, /* complain_on_overflow */
101 bfd_elf_generic_reloc, /* special_function */
102 "R_FRV_LO16", /* name */
103 FALSE, /* partial_inplace */
104 0xffff, /* src_mask */
105 0xffff, /* dst_mask */
106 FALSE), /* pcrel_offset */
107
108 HOWTO (R_FRV_HI16, /* type */
109 0, /* rightshift */
110 2, /* size (0 = byte, 1 = short, 2 = long) */
111 16, /* bitsize */
112 FALSE, /* pc_relative */
113 0, /* bitpos */
114 complain_overflow_dont, /* complain_on_overflow */
115 bfd_elf_generic_reloc, /* special_function */
116 "R_FRV_HI16", /* name */
117 FALSE, /* partial_inplace */
118 0xffff, /* src_mask */
119 0xffff, /* dst_mask */
120 FALSE), /* pcrel_offset */
121
122 HOWTO (R_FRV_GPREL12, /* type */
123 0, /* rightshift */
124 2, /* size (0 = byte, 1 = short, 2 = long) */
125 12, /* bitsize */
126 FALSE, /* pc_relative */
127 0, /* bitpos */
128 complain_overflow_dont, /* complain_on_overflow */
129 bfd_elf_generic_reloc, /* special_function */
130 "R_FRV_GPREL12", /* name */
131 FALSE, /* partial_inplace */
132 0xfff, /* src_mask */
133 0xfff, /* dst_mask */
134 FALSE), /* pcrel_offset */
135
136 HOWTO (R_FRV_GPRELU12, /* type */
137 0, /* rightshift */
138 2, /* size (0 = byte, 1 = short, 2 = long) */
139 12, /* bitsize */
140 FALSE, /* pc_relative */
141 0, /* bitpos */
142 complain_overflow_dont, /* complain_on_overflow */
143 bfd_elf_generic_reloc, /* special_function */
144 "R_FRV_GPRELU12", /* name */
145 FALSE, /* partial_inplace */
146 0xfff, /* src_mask */
147 0x3f03f, /* dst_mask */
148 FALSE), /* pcrel_offset */
149
150 HOWTO (R_FRV_GPREL32, /* type */
151 0, /* rightshift */
152 2, /* size (0 = byte, 1 = short, 2 = long) */
153 32, /* bitsize */
154 FALSE, /* pc_relative */
155 0, /* bitpos */
156 complain_overflow_dont, /* complain_on_overflow */
157 bfd_elf_generic_reloc, /* special_function */
158 "R_FRV_GPREL32", /* name */
159 FALSE, /* partial_inplace */
160 0xffffffff, /* src_mask */
161 0xffffffff, /* dst_mask */
162 FALSE), /* pcrel_offset */
163
164 HOWTO (R_FRV_GPRELHI, /* type */
165 0, /* rightshift */
166 2, /* size (0 = byte, 1 = short, 2 = long) */
167 16, /* bitsize */
168 FALSE, /* pc_relative */
169 0, /* bitpos */
170 complain_overflow_dont, /* complain_on_overflow */
171 bfd_elf_generic_reloc, /* special_function */
172 "R_FRV_GPRELHI", /* name */
173 FALSE, /* partial_inplace */
174 0xffff, /* src_mask */
175 0xffff, /* dst_mask */
176 FALSE), /* pcrel_offset */
177
178 HOWTO (R_FRV_GPRELLO, /* type */
179 0, /* rightshift */
180 2, /* size (0 = byte, 1 = short, 2 = long) */
181 16, /* bitsize */
182 FALSE, /* pc_relative */
183 0, /* bitpos */
184 complain_overflow_dont, /* complain_on_overflow */
185 bfd_elf_generic_reloc, /* special_function */
186 "R_FRV_GPRELLO", /* name */
187 FALSE, /* partial_inplace */
188 0xffff, /* src_mask */
189 0xffff, /* dst_mask */
190 FALSE), /* pcrel_offset */
191
192 /* A 12-bit signed operand with the GOT offset for the address of
193 the symbol. */
194 HOWTO (R_FRV_GOT12, /* type */
195 0, /* rightshift */
196 2, /* size (0 = byte, 1 = short, 2 = long) */
197 12, /* bitsize */
198 FALSE, /* pc_relative */
199 0, /* bitpos */
200 complain_overflow_signed, /* complain_on_overflow */
201 bfd_elf_generic_reloc, /* special_function */
202 "R_FRV_GOT12", /* name */
203 FALSE, /* partial_inplace */
204 0xfff, /* src_mask */
205 0xfff, /* dst_mask */
206 FALSE), /* pcrel_offset */
207
208 /* The upper 16 bits of the GOT offset for the address of the
209 symbol. */
210 HOWTO (R_FRV_GOTHI, /* type */
211 0, /* rightshift */
212 2, /* size (0 = byte, 1 = short, 2 = long) */
213 16, /* bitsize */
214 FALSE, /* pc_relative */
215 0, /* bitpos */
216 complain_overflow_dont, /* complain_on_overflow */
217 bfd_elf_generic_reloc, /* special_function */
218 "R_FRV_GOTHI", /* name */
219 FALSE, /* partial_inplace */
220 0xffff, /* src_mask */
221 0xffff, /* dst_mask */
222 FALSE), /* pcrel_offset */
223
224 /* The lower 16 bits of the GOT offset for the address of the
225 symbol. */
226 HOWTO (R_FRV_GOTLO, /* type */
227 0, /* rightshift */
228 2, /* size (0 = byte, 1 = short, 2 = long) */
229 16, /* bitsize */
230 FALSE, /* pc_relative */
231 0, /* bitpos */
232 complain_overflow_dont, /* complain_on_overflow */
233 bfd_elf_generic_reloc, /* special_function */
234 "R_FRV_GOTLO", /* name */
235 FALSE, /* partial_inplace */
236 0xffff, /* src_mask */
237 0xffff, /* dst_mask */
238 FALSE), /* pcrel_offset */
239
240 /* The 32-bit address of the canonical descriptor of a function. */
241 HOWTO (R_FRV_FUNCDESC, /* type */
242 0, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 32, /* bitsize */
245 FALSE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_bitfield, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_FRV_FUNCDESC", /* name */
250 FALSE, /* partial_inplace */
251 0xffffffff, /* src_mask */
252 0xffffffff, /* dst_mask */
253 FALSE), /* pcrel_offset */
254
255 /* A 12-bit signed operand with the GOT offset for the address of
256 canonical descriptor of a function. */
257 HOWTO (R_FRV_FUNCDESC_GOT12, /* type */
258 0, /* rightshift */
259 2, /* size (0 = byte, 1 = short, 2 = long) */
260 12, /* bitsize */
261 FALSE, /* pc_relative */
262 0, /* bitpos */
263 complain_overflow_signed, /* complain_on_overflow */
264 bfd_elf_generic_reloc, /* special_function */
265 "R_FRV_FUNCDESC_GOT12", /* name */
266 FALSE, /* partial_inplace */
267 0xfff, /* src_mask */
268 0xfff, /* dst_mask */
269 FALSE), /* pcrel_offset */
270
271 /* The upper 16 bits of the GOT offset for the address of the
272 canonical descriptor of a function. */
273 HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */
274 0, /* rightshift */
275 2, /* size (0 = byte, 1 = short, 2 = long) */
276 16, /* bitsize */
277 FALSE, /* pc_relative */
278 0, /* bitpos */
279 complain_overflow_dont, /* complain_on_overflow */
280 bfd_elf_generic_reloc, /* special_function */
281 "R_FRV_FUNCDESC_GOTHI", /* name */
282 FALSE, /* partial_inplace */
283 0xffff, /* src_mask */
284 0xffff, /* dst_mask */
285 FALSE), /* pcrel_offset */
286
287 /* The lower 16 bits of the GOT offset for the address of the
288 canonical descriptor of a function. */
289 HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */
290 0, /* rightshift */
291 2, /* size (0 = byte, 1 = short, 2 = long) */
292 16, /* bitsize */
293 FALSE, /* pc_relative */
294 0, /* bitpos */
295 complain_overflow_dont, /* complain_on_overflow */
296 bfd_elf_generic_reloc, /* special_function */
297 "R_FRV_FUNCDESC_GOTLO", /* name */
298 FALSE, /* partial_inplace */
299 0xffff, /* src_mask */
300 0xffff, /* dst_mask */
301 FALSE), /* pcrel_offset */
302
303 /* The 64-bit descriptor of a function. */
304 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
305 0, /* rightshift */
306 2, /* size (0 = byte, 1 = short, 2 = long) */
307 64, /* bitsize */
308 FALSE, /* pc_relative */
309 0, /* bitpos */
310 complain_overflow_bitfield, /* complain_on_overflow */
311 bfd_elf_generic_reloc, /* special_function */
312 "R_FRV_FUNCDESC_VALUE", /* name */
313 FALSE, /* partial_inplace */
314 0xffffffff, /* src_mask */
315 0xffffffff, /* dst_mask */
316 FALSE), /* pcrel_offset */
317
318 /* A 12-bit signed operand with the GOT offset for the address of
319 canonical descriptor of a function. */
320 HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
321 0, /* rightshift */
322 2, /* size (0 = byte, 1 = short, 2 = long) */
323 12, /* bitsize */
324 FALSE, /* pc_relative */
325 0, /* bitpos */
326 complain_overflow_signed, /* complain_on_overflow */
327 bfd_elf_generic_reloc, /* special_function */
328 "R_FRV_FUNCDESC_GOTOFF12", /* name */
329 FALSE, /* partial_inplace */
330 0xfff, /* src_mask */
331 0xfff, /* dst_mask */
332 FALSE), /* pcrel_offset */
333
334 /* The upper 16 bits of the GOT offset for the address of the
335 canonical descriptor of a function. */
336 HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
337 0, /* rightshift */
338 2, /* size (0 = byte, 1 = short, 2 = long) */
339 16, /* bitsize */
340 FALSE, /* pc_relative */
341 0, /* bitpos */
342 complain_overflow_dont, /* complain_on_overflow */
343 bfd_elf_generic_reloc, /* special_function */
344 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
345 FALSE, /* partial_inplace */
346 0xffff, /* src_mask */
347 0xffff, /* dst_mask */
348 FALSE), /* pcrel_offset */
349
350 /* The lower 16 bits of the GOT offset for the address of the
351 canonical descriptor of a function. */
352 HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
353 0, /* rightshift */
354 2, /* size (0 = byte, 1 = short, 2 = long) */
355 16, /* bitsize */
356 FALSE, /* pc_relative */
357 0, /* bitpos */
358 complain_overflow_dont, /* complain_on_overflow */
359 bfd_elf_generic_reloc, /* special_function */
360 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
361 FALSE, /* partial_inplace */
362 0xffff, /* src_mask */
363 0xffff, /* dst_mask */
364 FALSE), /* pcrel_offset */
365
366 /* A 12-bit signed operand with the GOT offset for the address of
367 the symbol. */
368 HOWTO (R_FRV_GOTOFF12, /* type */
369 0, /* rightshift */
370 2, /* size (0 = byte, 1 = short, 2 = long) */
371 12, /* bitsize */
372 FALSE, /* pc_relative */
373 0, /* bitpos */
374 complain_overflow_signed, /* complain_on_overflow */
375 bfd_elf_generic_reloc, /* special_function */
376 "R_FRV_GOTOFF12", /* name */
377 FALSE, /* partial_inplace */
378 0xfff, /* src_mask */
379 0xfff, /* dst_mask */
380 FALSE), /* pcrel_offset */
381
382 /* The upper 16 bits of the GOT offset for the address of the
383 symbol. */
384 HOWTO (R_FRV_GOTOFFHI, /* type */
385 0, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 16, /* bitsize */
388 FALSE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_dont, /* complain_on_overflow */
391 bfd_elf_generic_reloc, /* special_function */
392 "R_FRV_GOTOFFHI", /* name */
393 FALSE, /* partial_inplace */
394 0xffff, /* src_mask */
395 0xffff, /* dst_mask */
396 FALSE), /* pcrel_offset */
397
398 /* The lower 16 bits of the GOT offset for the address of the
399 symbol. */
400 HOWTO (R_FRV_GOTOFFLO, /* type */
401 0, /* rightshift */
402 2, /* size (0 = byte, 1 = short, 2 = long) */
403 16, /* bitsize */
404 FALSE, /* pc_relative */
405 0, /* bitpos */
406 complain_overflow_dont, /* complain_on_overflow */
407 bfd_elf_generic_reloc, /* special_function */
408 "R_FRV_GOTOFFLO", /* name */
409 FALSE, /* partial_inplace */
410 0xffff, /* src_mask */
411 0xffff, /* dst_mask */
412 FALSE), /* pcrel_offset */
413
414 /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
415 a thread-local symbol. If the symbol number is 0, it refers to
416 the module. */
417 HOWTO (R_FRV_GETTLSOFF, /* type */
418 2, /* rightshift */
419 2, /* size (0 = byte, 1 = short, 2 = long) */
420 26, /* bitsize */
421 TRUE, /* pc_relative */
422 0, /* bitpos */
423 complain_overflow_bitfield, /* complain_on_overflow */
424 bfd_elf_generic_reloc, /* special_function */
425 "R_FRV_GETTLSOFF", /* name */
426 FALSE, /* partial_inplace */
427 0x7e03ffff, /* src_mask */
428 0x7e03ffff, /* dst_mask */
429 TRUE), /* pcrel_offset */
430
431 /* A 64-bit TLS descriptor for a symbol. This relocation is only
432 valid as a REL, dynamic relocation. */
433 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
434 0, /* rightshift */
435 2, /* size (0 = byte, 1 = short, 2 = long) */
436 64, /* bitsize */
437 FALSE, /* pc_relative */
438 0, /* bitpos */
439 complain_overflow_bitfield, /* complain_on_overflow */
440 bfd_elf_generic_reloc, /* special_function */
441 "R_FRV_TLSDESC_VALUE", /* name */
442 FALSE, /* partial_inplace */
443 0xffffffff, /* src_mask */
444 0xffffffff, /* dst_mask */
445 FALSE), /* pcrel_offset */
446
447 /* A 12-bit signed operand with the GOT offset for the TLS
448 descriptor of the symbol. */
449 HOWTO (R_FRV_GOTTLSDESC12, /* type */
450 0, /* rightshift */
451 2, /* size (0 = byte, 1 = short, 2 = long) */
452 12, /* bitsize */
453 FALSE, /* pc_relative */
454 0, /* bitpos */
455 complain_overflow_signed, /* complain_on_overflow */
456 bfd_elf_generic_reloc, /* special_function */
457 "R_FRV_GOTTLSDESC12", /* name */
458 FALSE, /* partial_inplace */
459 0xfff, /* src_mask */
460 0xfff, /* dst_mask */
461 FALSE), /* pcrel_offset */
462
463 /* The upper 16 bits of the GOT offset for the TLS descriptor of the
464 symbol. */
465 HOWTO (R_FRV_GOTTLSDESCHI, /* type */
466 0, /* rightshift */
467 2, /* size (0 = byte, 1 = short, 2 = long) */
468 16, /* bitsize */
469 FALSE, /* pc_relative */
470 0, /* bitpos */
471 complain_overflow_dont, /* complain_on_overflow */
472 bfd_elf_generic_reloc, /* special_function */
473 "R_FRV_GOTTLSDESCHI", /* name */
474 FALSE, /* partial_inplace */
475 0xffff, /* src_mask */
476 0xffff, /* dst_mask */
477 FALSE), /* pcrel_offset */
478
479 /* The lower 16 bits of the GOT offset for the TLS descriptor of the
480 symbol. */
481 HOWTO (R_FRV_GOTTLSDESCLO, /* type */
482 0, /* rightshift */
483 2, /* size (0 = byte, 1 = short, 2 = long) */
484 16, /* bitsize */
485 FALSE, /* pc_relative */
486 0, /* bitpos */
487 complain_overflow_dont, /* complain_on_overflow */
488 bfd_elf_generic_reloc, /* special_function */
489 "R_FRV_GOTTLSDESCLO", /* name */
490 FALSE, /* partial_inplace */
491 0xffff, /* src_mask */
492 0xffff, /* dst_mask */
493 FALSE), /* pcrel_offset */
494
495 /* A 12-bit signed operand with the offset from the module base
496 address to the thread-local symbol address. */
497 HOWTO (R_FRV_TLSMOFF12, /* type */
498 0, /* rightshift */
499 2, /* size (0 = byte, 1 = short, 2 = long) */
500 12, /* bitsize */
501 FALSE, /* pc_relative */
502 0, /* bitpos */
503 complain_overflow_signed, /* complain_on_overflow */
504 bfd_elf_generic_reloc, /* special_function */
505 "R_FRV_TLSMOFF12", /* name */
506 FALSE, /* partial_inplace */
507 0xfff, /* src_mask */
508 0xfff, /* dst_mask */
509 FALSE), /* pcrel_offset */
510
511 /* The upper 16 bits of the offset from the module base address to
512 the thread-local symbol address. */
513 HOWTO (R_FRV_TLSMOFFHI, /* type */
514 0, /* rightshift */
515 2, /* size (0 = byte, 1 = short, 2 = long) */
516 16, /* bitsize */
517 FALSE, /* pc_relative */
518 0, /* bitpos */
519 complain_overflow_dont, /* complain_on_overflow */
520 bfd_elf_generic_reloc, /* special_function */
521 "R_FRV_TLSMOFFHI", /* name */
522 FALSE, /* partial_inplace */
523 0xffff, /* src_mask */
524 0xffff, /* dst_mask */
525 FALSE), /* pcrel_offset */
526
527 /* The lower 16 bits of the offset from the module base address to
528 the thread-local symbol address. */
529 HOWTO (R_FRV_TLSMOFFLO, /* type */
530 0, /* rightshift */
531 2, /* size (0 = byte, 1 = short, 2 = long) */
532 16, /* bitsize */
533 FALSE, /* pc_relative */
534 0, /* bitpos */
535 complain_overflow_dont, /* complain_on_overflow */
536 bfd_elf_generic_reloc, /* special_function */
537 "R_FRV_TLSMOFFLO", /* name */
538 FALSE, /* partial_inplace */
539 0xffff, /* src_mask */
540 0xffff, /* dst_mask */
541 FALSE), /* pcrel_offset */
542
543 /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
544 for a symbol. */
545 HOWTO (R_FRV_GOTTLSOFF12, /* type */
546 0, /* rightshift */
547 2, /* size (0 = byte, 1 = short, 2 = long) */
548 12, /* bitsize */
549 FALSE, /* pc_relative */
550 0, /* bitpos */
551 complain_overflow_signed, /* complain_on_overflow */
552 bfd_elf_generic_reloc, /* special_function */
553 "R_FRV_GOTTLSOFF12", /* name */
554 FALSE, /* partial_inplace */
555 0xfff, /* src_mask */
556 0xfff, /* dst_mask */
557 FALSE), /* pcrel_offset */
558
559 /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
560 symbol. */
561 HOWTO (R_FRV_GOTTLSOFFHI, /* type */
562 0, /* rightshift */
563 2, /* size (0 = byte, 1 = short, 2 = long) */
564 16, /* bitsize */
565 FALSE, /* pc_relative */
566 0, /* bitpos */
567 complain_overflow_dont, /* complain_on_overflow */
568 bfd_elf_generic_reloc, /* special_function */
569 "R_FRV_GOTTLSOFFHI", /* name */
570 FALSE, /* partial_inplace */
571 0xffff, /* src_mask */
572 0xffff, /* dst_mask */
573 FALSE), /* pcrel_offset */
574
575 /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
576 symbol. */
577 HOWTO (R_FRV_GOTTLSOFFLO, /* type */
578 0, /* rightshift */
579 2, /* size (0 = byte, 1 = short, 2 = long) */
580 16, /* bitsize */
581 FALSE, /* pc_relative */
582 0, /* bitpos */
583 complain_overflow_dont, /* complain_on_overflow */
584 bfd_elf_generic_reloc, /* special_function */
585 "R_FRV_GOTTLSOFFLO", /* name */
586 FALSE, /* partial_inplace */
587 0xffff, /* src_mask */
588 0xffff, /* dst_mask */
589 FALSE), /* pcrel_offset */
590
591 /* The 32-bit offset from the thread pointer (not the module base
592 address) to a thread-local symbol. */
593 HOWTO (R_FRV_TLSOFF, /* type */
594 0, /* rightshift */
595 2, /* size (0 = byte, 1 = short, 2 = long) */
596 32, /* bitsize */
597 FALSE, /* pc_relative */
598 0, /* bitpos */
599 complain_overflow_dont, /* complain_on_overflow */
600 bfd_elf_generic_reloc, /* special_function */
601 "R_FRV_TLSOFF", /* name */
602 FALSE, /* partial_inplace */
603 0xffffffff, /* src_mask */
604 0xffffffff, /* dst_mask */
605 FALSE), /* pcrel_offset */
606
607 /* An annotation for linker relaxation, that denotes the
608 symbol+addend whose TLS descriptor is referenced by the sum of
609 the two input registers of an ldd instruction. */
610 HOWTO (R_FRV_TLSDESC_RELAX, /* type */
611 0, /* rightshift */
612 2, /* size (0 = byte, 1 = short, 2 = long) */
613 0, /* 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_TLSDESC_RELAX", /* name */
619 FALSE, /* partial_inplace */
620 0, /* src_mask */
621 0, /* dst_mask */
622 FALSE), /* pcrel_offset */
623
624 /* An annotation for linker relaxation, that denotes the
625 symbol+addend whose TLS resolver entry point is given by the sum
626 of the two register operands of an calll instruction. */
627 HOWTO (R_FRV_GETTLSOFF_RELAX, /* type */
628 0, /* rightshift */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
630 0, /* bitsize */
631 FALSE, /* pc_relative */
632 0, /* bitpos */
633 complain_overflow_dont, /* complain_on_overflow */
634 bfd_elf_generic_reloc, /* special_function */
635 "R_FRV_GETTLSOFF_RELAX", /* name */
636 FALSE, /* partial_inplace */
637 0, /* src_mask */
638 0, /* dst_mask */
639 FALSE), /* pcrel_offset */
640
641 /* An annotation for linker relaxation, that denotes the
642 symbol+addend whose TLS offset GOT entry is given by the sum of
643 the two input registers of an ld instruction. */
644 HOWTO (R_FRV_TLSOFF_RELAX, /* type */
645 0, /* rightshift */
646 2, /* size (0 = byte, 1 = short, 2 = long) */
647 0, /* bitsize */
648 FALSE, /* pc_relative */
649 0, /* bitpos */
650 complain_overflow_bitfield, /* complain_on_overflow */
651 bfd_elf_generic_reloc, /* special_function */
652 "R_FRV_TLSOFF_RELAX", /* name */
653 FALSE, /* partial_inplace */
654 0, /* src_mask */
655 0, /* dst_mask */
656 FALSE), /* pcrel_offset */
657
658 /* A 32-bit offset from the module base address to
659 the thread-local symbol address. */
660 HOWTO (R_FRV_TLSMOFF, /* type */
661 0, /* rightshift */
662 2, /* size (0 = byte, 1 = short, 2 = long) */
663 32, /* bitsize */
664 FALSE, /* pc_relative */
665 0, /* bitpos */
666 complain_overflow_dont, /* complain_on_overflow */
667 bfd_elf_generic_reloc, /* special_function */
668 "R_FRV_TLSMOFF", /* name */
669 FALSE, /* partial_inplace */
670 0xffffffff, /* src_mask */
671 0xffffffff, /* dst_mask */
672 FALSE), /* pcrel_offset */
673 };
674
675 /* GNU extension to record C++ vtable hierarchy. */
676 static reloc_howto_type elf32_frv_vtinherit_howto =
677 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
678 0, /* rightshift */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
680 0, /* bitsize */
681 FALSE, /* pc_relative */
682 0, /* bitpos */
683 complain_overflow_dont, /* complain_on_overflow */
684 NULL, /* special_function */
685 "R_FRV_GNU_VTINHERIT", /* name */
686 FALSE, /* partial_inplace */
687 0, /* src_mask */
688 0, /* dst_mask */
689 FALSE); /* pcrel_offset */
690
691 /* GNU extension to record C++ vtable member usage. */
692 static reloc_howto_type elf32_frv_vtentry_howto =
693 HOWTO (R_FRV_GNU_VTENTRY, /* 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_dont, /* complain_on_overflow */
700 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
701 "R_FRV_GNU_VTENTRY", /* name */
702 FALSE, /* partial_inplace */
703 0, /* src_mask */
704 0, /* dst_mask */
705 FALSE); /* pcrel_offset */
706
707 /* The following 3 relocations are REL. The only difference to the
708 entries in the table above are that partial_inplace is TRUE. */
709 static reloc_howto_type elf32_frv_rel_32_howto =
710 HOWTO (R_FRV_32, /* type */
711 0, /* rightshift */
712 2, /* size (0 = byte, 1 = short, 2 = long) */
713 32, /* bitsize */
714 FALSE, /* pc_relative */
715 0, /* bitpos */
716 complain_overflow_bitfield, /* complain_on_overflow */
717 bfd_elf_generic_reloc, /* special_function */
718 "R_FRV_32", /* name */
719 TRUE, /* partial_inplace */
720 0xffffffff, /* src_mask */
721 0xffffffff, /* dst_mask */
722 FALSE); /* pcrel_offset */
723
724 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
725 HOWTO (R_FRV_FUNCDESC, /* type */
726 0, /* rightshift */
727 2, /* size (0 = byte, 1 = short, 2 = long) */
728 32, /* bitsize */
729 FALSE, /* pc_relative */
730 0, /* bitpos */
731 complain_overflow_bitfield, /* complain_on_overflow */
732 bfd_elf_generic_reloc, /* special_function */
733 "R_FRV_FUNCDESC", /* name */
734 TRUE, /* partial_inplace */
735 0xffffffff, /* src_mask */
736 0xffffffff, /* dst_mask */
737 FALSE); /* pcrel_offset */
738
739 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
740 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
741 0, /* rightshift */
742 2, /* size (0 = byte, 1 = short, 2 = long) */
743 64, /* bitsize */
744 FALSE, /* pc_relative */
745 0, /* bitpos */
746 complain_overflow_bitfield, /* complain_on_overflow */
747 bfd_elf_generic_reloc, /* special_function */
748 "R_FRV_FUNCDESC_VALUE", /* name */
749 TRUE, /* partial_inplace */
750 0xffffffff, /* src_mask */
751 0xffffffff, /* dst_mask */
752 FALSE); /* pcrel_offset */
753
754 static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
755 /* A 64-bit TLS descriptor for a symbol. The first word resolves to
756 an entry point, and the second resolves to a special argument.
757 If the symbol turns out to be in static TLS, the entry point is a
758 return instruction, and the special argument is the TLS offset
759 for the symbol. If it's in dynamic TLS, the entry point is a TLS
760 offset resolver, and the special argument is a pointer to a data
761 structure allocated by the dynamic loader, containing the GOT
762 address for the offset resolver, the module id, the offset within
763 the module, and anything else the TLS offset resolver might need
764 to determine the TLS offset for the symbol in the running
765 thread. */
766 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
767 0, /* rightshift */
768 2, /* size (0 = byte, 1 = short, 2 = long) */
769 64, /* bitsize */
770 FALSE, /* pc_relative */
771 0, /* bitpos */
772 complain_overflow_bitfield, /* complain_on_overflow */
773 bfd_elf_generic_reloc, /* special_function */
774 "R_FRV_TLSDESC_VALUE", /* name */
775 TRUE, /* partial_inplace */
776 0xffffffff, /* src_mask */
777 0xffffffff, /* dst_mask */
778 FALSE); /* pcrel_offset */
779
780 static reloc_howto_type elf32_frv_rel_tlsoff_howto =
781 /* The 32-bit offset from the thread pointer (not the module base
782 address) to a thread-local symbol. */
783 HOWTO (R_FRV_TLSOFF, /* type */
784 0, /* rightshift */
785 2, /* size (0 = byte, 1 = short, 2 = long) */
786 32, /* bitsize */
787 FALSE, /* pc_relative */
788 0, /* bitpos */
789 complain_overflow_bitfield, /* complain_on_overflow */
790 bfd_elf_generic_reloc, /* special_function */
791 "R_FRV_TLSOFF", /* name */
792 TRUE, /* partial_inplace */
793 0xffffffff, /* src_mask */
794 0xffffffff, /* dst_mask */
795 FALSE); /* pcrel_offset */
796
797
798 \f
799 extern const bfd_target frv_elf32_fdpic_vec;
800 #define IS_FDPIC(bfd) ((bfd)->xvec == &frv_elf32_fdpic_vec)
801
802 /* An extension of the elf hash table data structure, containing some
803 additional FRV-specific data. */
804 struct frvfdpic_elf_link_hash_table
805 {
806 struct elf_link_hash_table elf;
807
808 /* A pointer to the .got section. */
809 asection *sgot;
810 /* A pointer to the .rel.got section. */
811 asection *sgotrel;
812 /* A pointer to the .rofixup section. */
813 asection *sgotfixup;
814 /* A pointer to the .plt section. */
815 asection *splt;
816 /* A pointer to the .rel.plt section. */
817 asection *spltrel;
818 /* GOT base offset. */
819 bfd_vma got0;
820 /* Location of the first non-lazy PLT entry, i.e., the number of
821 bytes taken by lazy PLT entries. If locally-bound TLS
822 descriptors require a ret instruction, it will be placed at this
823 offset. */
824 bfd_vma plt0;
825 /* A hash table holding information about which symbols were
826 referenced with which PIC-related relocations. */
827 struct htab *relocs_info;
828 /* Summary reloc information collected by
829 _frvfdpic_count_got_plt_entries. */
830 struct _frvfdpic_dynamic_got_info *g;
831 };
832
833 /* Get the FRV ELF linker hash table from a link_info structure. */
834
835 #define frvfdpic_hash_table(p) \
836 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
837 == FRV_ELF_DATA ? ((struct frvfdpic_elf_link_hash_table *) ((p)->hash)) : NULL)
838
839 #define frvfdpic_got_section(info) \
840 (frvfdpic_hash_table (info)->sgot)
841 #define frvfdpic_gotrel_section(info) \
842 (frvfdpic_hash_table (info)->sgotrel)
843 #define frvfdpic_gotfixup_section(info) \
844 (frvfdpic_hash_table (info)->sgotfixup)
845 #define frvfdpic_plt_section(info) \
846 (frvfdpic_hash_table (info)->splt)
847 #define frvfdpic_pltrel_section(info) \
848 (frvfdpic_hash_table (info)->spltrel)
849 #define frvfdpic_relocs_info(info) \
850 (frvfdpic_hash_table (info)->relocs_info)
851 #define frvfdpic_got_initial_offset(info) \
852 (frvfdpic_hash_table (info)->got0)
853 #define frvfdpic_plt_initial_offset(info) \
854 (frvfdpic_hash_table (info)->plt0)
855 #define frvfdpic_dynamic_got_plt_info(info) \
856 (frvfdpic_hash_table (info)->g)
857
858 /* Currently it's the same, but if some day we have a reason to change
859 it, we'd better be using a different macro.
860
861 FIXME: if there's any TLS PLT entry that uses local-exec or
862 initial-exec models, we could use the ret at the end of any of them
863 instead of adding one more. */
864 #define frvfdpic_plt_tls_ret_offset(info) \
865 (frvfdpic_plt_initial_offset (info))
866
867 /* The name of the dynamic interpreter. This is put in the .interp
868 section. */
869
870 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
871
872 #define DEFAULT_STACK_SIZE 0x20000
873
874 /* This structure is used to collect the number of entries present in
875 each addressable range of the got. */
876 struct _frvfdpic_dynamic_got_info
877 {
878 /* Several bits of information about the current link. */
879 struct bfd_link_info *info;
880 /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
881 ranges. */
882 bfd_vma got12, gotlos, gothilo;
883 /* Total GOT size needed for function descriptor entries within the 12-,
884 16- or 32-bit ranges. */
885 bfd_vma fd12, fdlos, fdhilo;
886 /* Total GOT size needed by function descriptor entries referenced
887 in PLT entries, that would be profitable to place in offsets
888 close to the PIC register. */
889 bfd_vma fdplt;
890 /* Total PLT size needed by lazy PLT entries. */
891 bfd_vma lzplt;
892 /* Total GOT size needed for TLS descriptor entries within the 12-,
893 16- or 32-bit ranges. */
894 bfd_vma tlsd12, tlsdlos, tlsdhilo;
895 /* Total GOT size needed by TLS descriptors referenced in PLT
896 entries, that would be profitable to place in offers close to the
897 PIC register. */
898 bfd_vma tlsdplt;
899 /* Total PLT size needed by TLS lazy PLT entries. */
900 bfd_vma tlslzplt;
901 /* Number of relocations carried over from input object files. */
902 unsigned long relocs;
903 /* Number of fixups introduced by relocations in input object files. */
904 unsigned long fixups;
905 /* The number of fixups that reference the ret instruction added to
906 the PLT for locally-resolved TLS descriptors. */
907 unsigned long tls_ret_refs;
908 };
909
910 /* This structure is used to assign offsets to got entries, function
911 descriptors, plt entries and lazy plt entries. */
912
913 struct _frvfdpic_dynamic_got_plt_info
914 {
915 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
916 struct _frvfdpic_dynamic_got_info g;
917
918 /* For each addressable range, we record a MAX (positive) and MIN
919 (negative) value. CUR is used to assign got entries, and it's
920 incremented from an initial positive value to MAX, then from MIN
921 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
922 assign function descriptors, and it's decreased from an initial
923 non-positive value to MIN, then from MAX down to CUR (unless CUR
924 wraps around first). All of MIN, MAX, CUR and FDCUR always point
925 to even words. ODD, if non-zero, indicates an odd word to be
926 used for the next got entry, otherwise CUR is used and
927 incremented by a pair of words, wrapping around when it reaches
928 MAX. FDCUR is decremented (and wrapped) before the next function
929 descriptor is chosen. FDPLT indicates the number of remaining
930 slots that can be used for function descriptors used only by PLT
931 entries.
932
933 TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
934 starts as MAX, and grows up to TMAX, then wraps around to TMIN
935 and grows up to MIN. TLSDPLT indicates the number of remaining
936 slots that can be used for TLS descriptors used only by TLS PLT
937 entries. */
938 struct _frvfdpic_dynamic_got_alloc_data
939 {
940 bfd_signed_vma max, cur, odd, fdcur, min;
941 bfd_signed_vma tmax, tcur, tmin;
942 bfd_vma fdplt, tlsdplt;
943 } got12, gotlos, gothilo;
944 };
945
946 /* Create an FRV ELF linker hash table. */
947
948 static struct bfd_link_hash_table *
949 frvfdpic_elf_link_hash_table_create (bfd *abfd)
950 {
951 struct frvfdpic_elf_link_hash_table *ret;
952 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
953
954 ret = bfd_zmalloc (amt);
955 if (ret == NULL)
956 return NULL;
957
958 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
959 _bfd_elf_link_hash_newfunc,
960 sizeof (struct elf_link_hash_entry),
961 FRV_ELF_DATA))
962 {
963 free (ret);
964 return NULL;
965 }
966
967 return &ret->elf.root;
968 }
969
970 /* Decide whether a reference to a symbol can be resolved locally or
971 not. If the symbol is protected, we want the local address, but
972 its function descriptor must be assigned by the dynamic linker. */
973 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
974 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
975 || ! elf_hash_table (INFO)->dynamic_sections_created)
976 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
977 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
978
979 /* This structure collects information on what kind of GOT, PLT or
980 function descriptors are required by relocations that reference a
981 certain symbol. */
982 struct frvfdpic_relocs_info
983 {
984 /* The index of the symbol, as stored in the relocation r_info, if
985 we have a local symbol; -1 otherwise. */
986 long symndx;
987 union
988 {
989 /* The input bfd in which the symbol is defined, if it's a local
990 symbol. */
991 bfd *abfd;
992 /* If symndx == -1, the hash table entry corresponding to a global
993 symbol (even if it turns out to bind locally, in which case it
994 should ideally be replaced with section's symndx + addend). */
995 struct elf_link_hash_entry *h;
996 } d;
997 /* The addend of the relocation that references the symbol. */
998 bfd_vma addend;
999
1000 /* The fields above are used to identify an entry. The fields below
1001 contain information on how an entry is used and, later on, which
1002 locations it was assigned. */
1003 /* The following 3 fields record whether the symbol+addend above was
1004 ever referenced with a GOT relocation. The 12 suffix indicates a
1005 GOT12 relocation; los is used for GOTLO relocations that are not
1006 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1007 pairs. */
1008 unsigned got12:1;
1009 unsigned gotlos:1;
1010 unsigned gothilo:1;
1011 /* Whether a FUNCDESC relocation references symbol+addend. */
1012 unsigned fd:1;
1013 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1014 unsigned fdgot12:1;
1015 unsigned fdgotlos:1;
1016 unsigned fdgothilo:1;
1017 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1018 unsigned fdgoff12:1;
1019 unsigned fdgofflos:1;
1020 unsigned fdgoffhilo:1;
1021 /* Whether a GETTLSOFF relocation references symbol+addend. */
1022 unsigned tlsplt:1;
1023 /* FIXME: we should probably add tlspltdesc, tlspltoff and
1024 tlspltimm, to tell what kind of TLS PLT entry we're generating.
1025 We might instead just pre-compute flags telling whether the
1026 object is suitable for local exec, initial exec or general
1027 dynamic addressing, and use that all over the place. We could
1028 also try to do a better job of merging TLSOFF and TLSDESC entries
1029 in main executables, but perhaps we can get rid of TLSDESC
1030 entirely in them instead. */
1031 /* Whether a GOTTLSDESC relocation references symbol+addend. */
1032 unsigned tlsdesc12:1;
1033 unsigned tlsdesclos:1;
1034 unsigned tlsdeschilo:1;
1035 /* Whether a GOTTLSOFF relocation references symbol+addend. */
1036 unsigned tlsoff12:1;
1037 unsigned tlsofflos:1;
1038 unsigned tlsoffhilo:1;
1039 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1040 GOTOFFHI relocations. The addend doesn't really matter, since we
1041 envision that this will only be used to check whether the symbol
1042 is mapped to the same segment as the got. */
1043 unsigned gotoff:1;
1044 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1045 unsigned call:1;
1046 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1047 relocation. */
1048 unsigned sym:1;
1049 /* Whether we need a PLT entry for a symbol. Should be implied by
1050 something like:
1051 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
1052 unsigned plt:1;
1053 /* Whether a function descriptor should be created in this link unit
1054 for symbol+addend. Should be implied by something like:
1055 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1056 || ((fd || fdgot12 || fdgotlos || fdgothilo)
1057 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
1058 unsigned privfd:1;
1059 /* Whether a lazy PLT entry is needed for this symbol+addend.
1060 Should be implied by something like:
1061 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1062 && ! (info->flags & DF_BIND_NOW)) */
1063 unsigned lazyplt:1;
1064 /* Whether we've already emitted GOT relocations and PLT entries as
1065 needed for this symbol. */
1066 unsigned done:1;
1067
1068 /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1069 R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1070 symbol+addend. */
1071 unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1072
1073 /* The number of .rofixups entries and dynamic relocations allocated
1074 for this symbol, minus any that might have already been used. */
1075 unsigned fixups, dynrelocs;
1076
1077 /* The offsets of the GOT entries assigned to symbol+addend, to the
1078 function descriptor's address, and to a function descriptor,
1079 respectively. Should be zero if unassigned. The offsets are
1080 counted from the value that will be assigned to the PIC register,
1081 not from the beginning of the .got section. */
1082 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1083 /* The offsets of the PLT entries assigned to symbol+addend,
1084 non-lazy and lazy, respectively. If unassigned, should be
1085 (bfd_vma)-1. */
1086 bfd_vma plt_entry, lzplt_entry;
1087 /* The offsets of the GOT entries for TLS offset and TLS descriptor. */
1088 bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1089 /* The offset of the TLS offset PLT entry. */
1090 bfd_vma tlsplt_entry;
1091 };
1092
1093 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
1094 static hashval_t
1095 frvfdpic_relocs_info_hash (const void *entry_)
1096 {
1097 const struct frvfdpic_relocs_info *entry = entry_;
1098
1099 return (entry->symndx == -1
1100 ? (long) entry->d.h->root.root.hash
1101 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1102 }
1103
1104 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1105 identical. */
1106 static int
1107 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1108 {
1109 const struct frvfdpic_relocs_info *e1 = entry1;
1110 const struct frvfdpic_relocs_info *e2 = entry2;
1111
1112 return e1->symndx == e2->symndx && e1->addend == e2->addend
1113 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1114 }
1115
1116 /* Find or create an entry in a hash table HT that matches the key
1117 fields of the given ENTRY. If it's not found, memory for a new
1118 entry is allocated in ABFD's obstack. */
1119 static struct frvfdpic_relocs_info *
1120 frvfdpic_relocs_info_find (struct htab *ht,
1121 bfd *abfd,
1122 const struct frvfdpic_relocs_info *entry,
1123 enum insert_option insert)
1124 {
1125 struct frvfdpic_relocs_info **loc =
1126 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1127
1128 if (! loc)
1129 return NULL;
1130
1131 if (*loc)
1132 return *loc;
1133
1134 *loc = bfd_zalloc (abfd, sizeof (**loc));
1135
1136 if (! *loc)
1137 return *loc;
1138
1139 (*loc)->symndx = entry->symndx;
1140 (*loc)->d = entry->d;
1141 (*loc)->addend = entry->addend;
1142 (*loc)->plt_entry = (bfd_vma)-1;
1143 (*loc)->lzplt_entry = (bfd_vma)-1;
1144 (*loc)->tlsplt_entry = (bfd_vma)-1;
1145
1146 return *loc;
1147 }
1148
1149 /* Obtain the address of the entry in HT associated with H's symbol +
1150 addend, creating a new entry if none existed. ABFD is only used
1151 for memory allocation purposes. */
1152 inline static struct frvfdpic_relocs_info *
1153 frvfdpic_relocs_info_for_global (struct htab *ht,
1154 bfd *abfd,
1155 struct elf_link_hash_entry *h,
1156 bfd_vma addend,
1157 enum insert_option insert)
1158 {
1159 struct frvfdpic_relocs_info entry;
1160
1161 entry.symndx = -1;
1162 entry.d.h = h;
1163 entry.addend = addend;
1164
1165 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1166 }
1167
1168 /* Obtain the address of the entry in HT associated with the SYMNDXth
1169 local symbol of the input bfd ABFD, plus the addend, creating a new
1170 entry if none existed. */
1171 inline static struct frvfdpic_relocs_info *
1172 frvfdpic_relocs_info_for_local (struct htab *ht,
1173 bfd *abfd,
1174 long symndx,
1175 bfd_vma addend,
1176 enum insert_option insert)
1177 {
1178 struct frvfdpic_relocs_info entry;
1179
1180 entry.symndx = symndx;
1181 entry.d.abfd = abfd;
1182 entry.addend = addend;
1183
1184 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1185 }
1186
1187 /* Merge fields set by check_relocs() of two entries that end up being
1188 mapped to the same (presumably global) symbol. */
1189
1190 inline static void
1191 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1192 struct frvfdpic_relocs_info const *e1)
1193 {
1194 e2->got12 |= e1->got12;
1195 e2->gotlos |= e1->gotlos;
1196 e2->gothilo |= e1->gothilo;
1197 e2->fd |= e1->fd;
1198 e2->fdgot12 |= e1->fdgot12;
1199 e2->fdgotlos |= e1->fdgotlos;
1200 e2->fdgothilo |= e1->fdgothilo;
1201 e2->fdgoff12 |= e1->fdgoff12;
1202 e2->fdgofflos |= e1->fdgofflos;
1203 e2->fdgoffhilo |= e1->fdgoffhilo;
1204 e2->tlsplt |= e1->tlsplt;
1205 e2->tlsdesc12 |= e1->tlsdesc12;
1206 e2->tlsdesclos |= e1->tlsdesclos;
1207 e2->tlsdeschilo |= e1->tlsdeschilo;
1208 e2->tlsoff12 |= e1->tlsoff12;
1209 e2->tlsofflos |= e1->tlsofflos;
1210 e2->tlsoffhilo |= e1->tlsoffhilo;
1211 e2->gotoff |= e1->gotoff;
1212 e2->call |= e1->call;
1213 e2->sym |= e1->sym;
1214 }
1215
1216 /* Every block of 65535 lazy PLT entries shares a single call to the
1217 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1218 32767, counting from 0). All other lazy PLT entries branch to it
1219 in a single instruction. */
1220
1221 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1222 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1223
1224 /* Add a dynamic relocation to the SRELOC section. */
1225
1226 inline static bfd_vma
1227 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1228 int reloc_type, long dynindx, bfd_vma addend,
1229 struct frvfdpic_relocs_info *entry)
1230 {
1231 Elf_Internal_Rela outrel;
1232 bfd_vma reloc_offset;
1233
1234 outrel.r_offset = offset;
1235 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1236 outrel.r_addend = addend;
1237
1238 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1239 BFD_ASSERT (reloc_offset < sreloc->size);
1240 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1241 sreloc->contents + reloc_offset);
1242 sreloc->reloc_count++;
1243
1244 /* If the entry's index is zero, this relocation was probably to a
1245 linkonce section that got discarded. We reserved a dynamic
1246 relocation, but it was for another entry than the one we got at
1247 the time of emitting the relocation. Unfortunately there's no
1248 simple way for us to catch this situation, since the relocation
1249 is cleared right before calling relocate_section, at which point
1250 we no longer know what the relocation used to point to. */
1251 if (entry->symndx)
1252 {
1253 BFD_ASSERT (entry->dynrelocs > 0);
1254 entry->dynrelocs--;
1255 }
1256
1257 return reloc_offset;
1258 }
1259
1260 /* Add a fixup to the ROFIXUP section. */
1261
1262 static bfd_vma
1263 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1264 struct frvfdpic_relocs_info *entry)
1265 {
1266 bfd_vma fixup_offset;
1267
1268 if (rofixup->flags & SEC_EXCLUDE)
1269 return -1;
1270
1271 fixup_offset = rofixup->reloc_count * 4;
1272 if (rofixup->contents)
1273 {
1274 BFD_ASSERT (fixup_offset < rofixup->size);
1275 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1276 }
1277 rofixup->reloc_count++;
1278
1279 if (entry && entry->symndx)
1280 {
1281 /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1282 above. */
1283 BFD_ASSERT (entry->fixups > 0);
1284 entry->fixups--;
1285 }
1286
1287 return fixup_offset;
1288 }
1289
1290 /* Find the segment number in which OSEC, and output section, is
1291 located. */
1292
1293 static unsigned
1294 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1295 {
1296 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
1297
1298 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
1299 }
1300
1301 inline static bfd_boolean
1302 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1303 {
1304 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1305
1306 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1307 }
1308
1309 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1310
1311 /* Return the base VMA address which should be subtracted from real addresses
1312 when resolving TLSMOFF relocation.
1313 This is PT_TLS segment p_vaddr, plus the 2048-16 bias. */
1314
1315 static bfd_vma
1316 tls_biased_base (struct bfd_link_info *info)
1317 {
1318 /* If tls_sec is NULL, we should have signalled an error already. */
1319 if (elf_hash_table (info)->tls_sec == NULL)
1320 return FRVFDPIC_TLS_BIAS;
1321 return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1322 }
1323
1324 /* Generate relocations for GOT entries, function descriptors, and
1325 code for PLT and lazy PLT entries. */
1326
1327 inline static bfd_boolean
1328 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1329 bfd *output_bfd,
1330 struct bfd_link_info *info,
1331 asection *sec,
1332 Elf_Internal_Sym *sym,
1333 bfd_vma addend)
1334
1335 {
1336 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1337 int dynindx = -1;
1338
1339 if (entry->done)
1340 return TRUE;
1341 entry->done = 1;
1342
1343 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1344 || entry->tlsoff_entry || entry->tlsdesc_entry)
1345 {
1346 /* If the symbol is dynamic, consider it for dynamic
1347 relocations, otherwise decay to section + offset. */
1348 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1349 dynindx = entry->d.h->dynindx;
1350 else
1351 {
1352 if (sec
1353 && sec->output_section
1354 && ! bfd_is_abs_section (sec->output_section)
1355 && ! bfd_is_und_section (sec->output_section))
1356 dynindx = elf_section_data (sec->output_section)->dynindx;
1357 else
1358 dynindx = 0;
1359 }
1360 }
1361
1362 /* Generate relocation for GOT entry pointing to the symbol. */
1363 if (entry->got_entry)
1364 {
1365 int idx = dynindx;
1366 bfd_vma ad = addend;
1367
1368 /* If the symbol is dynamic but binds locally, use
1369 section+offset. */
1370 if (sec && (entry->symndx != -1
1371 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1372 {
1373 if (entry->symndx == -1)
1374 ad += entry->d.h->root.u.def.value;
1375 else
1376 ad += sym->st_value;
1377 ad += sec->output_offset;
1378 if (sec->output_section && elf_section_data (sec->output_section))
1379 idx = elf_section_data (sec->output_section)->dynindx;
1380 else
1381 idx = 0;
1382 }
1383
1384 /* If we're linking an executable at a fixed address, we can
1385 omit the dynamic relocation as long as the symbol is local to
1386 this module. */
1387 if (bfd_link_pde (info)
1388 && (entry->symndx != -1
1389 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1390 {
1391 if (sec)
1392 ad += sec->output_section->vma;
1393 if (entry->symndx != -1
1394 || entry->d.h->root.type != bfd_link_hash_undefweak)
1395 _frvfdpic_add_rofixup (output_bfd,
1396 frvfdpic_gotfixup_section (info),
1397 frvfdpic_got_section (info)->output_section
1398 ->vma
1399 + frvfdpic_got_section (info)->output_offset
1400 + frvfdpic_got_initial_offset (info)
1401 + entry->got_entry, entry);
1402 }
1403 else
1404 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1405 _bfd_elf_section_offset
1406 (output_bfd, info,
1407 frvfdpic_got_section (info),
1408 frvfdpic_got_initial_offset (info)
1409 + entry->got_entry)
1410 + frvfdpic_got_section (info)
1411 ->output_section->vma
1412 + frvfdpic_got_section (info)->output_offset,
1413 R_FRV_32, idx, ad, entry);
1414
1415 bfd_put_32 (output_bfd, ad,
1416 frvfdpic_got_section (info)->contents
1417 + frvfdpic_got_initial_offset (info)
1418 + entry->got_entry);
1419 }
1420
1421 /* Generate relocation for GOT entry pointing to a canonical
1422 function descriptor. */
1423 if (entry->fdgot_entry)
1424 {
1425 int reloc, idx;
1426 bfd_vma ad = 0;
1427
1428 if (! (entry->symndx == -1
1429 && entry->d.h->root.type == bfd_link_hash_undefweak
1430 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1431 {
1432 /* If the symbol is dynamic and there may be dynamic symbol
1433 resolution because we are, or are linked with, a shared
1434 library, emit a FUNCDESC relocation such that the dynamic
1435 linker will allocate the function descriptor. If the
1436 symbol needs a non-local function descriptor but binds
1437 locally (e.g., its visibility is protected, emit a
1438 dynamic relocation decayed to section+offset. */
1439 if (entry->symndx == -1
1440 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1441 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1442 && !bfd_link_pde (info))
1443 {
1444 reloc = R_FRV_FUNCDESC;
1445 idx = elf_section_data (entry->d.h->root.u.def.section
1446 ->output_section)->dynindx;
1447 ad = entry->d.h->root.u.def.section->output_offset
1448 + entry->d.h->root.u.def.value;
1449 }
1450 else if (entry->symndx == -1
1451 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1452 {
1453 reloc = R_FRV_FUNCDESC;
1454 idx = dynindx;
1455 ad = addend;
1456 if (ad)
1457 {
1458 (*info->callbacks->reloc_dangerous)
1459 (info, _("relocation requires zero addend"),
1460 elf_hash_table (info)->dynobj,
1461 frvfdpic_got_section (info),
1462 entry->fdgot_entry);
1463 return FALSE;
1464 }
1465 }
1466 else
1467 {
1468 /* Otherwise, we know we have a private function descriptor,
1469 so reference it directly. */
1470 if (elf_hash_table (info)->dynamic_sections_created)
1471 BFD_ASSERT (entry->privfd);
1472 reloc = R_FRV_32;
1473 idx = elf_section_data (frvfdpic_got_section (info)
1474 ->output_section)->dynindx;
1475 ad = frvfdpic_got_section (info)->output_offset
1476 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1477 }
1478
1479 /* If there is room for dynamic symbol resolution, emit the
1480 dynamic relocation. However, if we're linking an
1481 executable at a fixed location, we won't have emitted a
1482 dynamic symbol entry for the got section, so idx will be
1483 zero, which means we can and should compute the address
1484 of the private descriptor ourselves. */
1485 if (bfd_link_pde (info)
1486 && (entry->symndx != -1
1487 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1488 {
1489 ad += frvfdpic_got_section (info)->output_section->vma;
1490 _frvfdpic_add_rofixup (output_bfd,
1491 frvfdpic_gotfixup_section (info),
1492 frvfdpic_got_section (info)
1493 ->output_section->vma
1494 + frvfdpic_got_section (info)
1495 ->output_offset
1496 + frvfdpic_got_initial_offset (info)
1497 + entry->fdgot_entry, entry);
1498 }
1499 else
1500 _frvfdpic_add_dyn_reloc (output_bfd,
1501 frvfdpic_gotrel_section (info),
1502 _bfd_elf_section_offset
1503 (output_bfd, info,
1504 frvfdpic_got_section (info),
1505 frvfdpic_got_initial_offset (info)
1506 + entry->fdgot_entry)
1507 + frvfdpic_got_section (info)
1508 ->output_section->vma
1509 + frvfdpic_got_section (info)
1510 ->output_offset,
1511 reloc, idx, ad, entry);
1512 }
1513
1514 bfd_put_32 (output_bfd, ad,
1515 frvfdpic_got_section (info)->contents
1516 + frvfdpic_got_initial_offset (info)
1517 + entry->fdgot_entry);
1518 }
1519
1520 /* Generate relocation to fill in a private function descriptor in
1521 the GOT. */
1522 if (entry->fd_entry)
1523 {
1524 int idx = dynindx;
1525 bfd_vma ad = addend;
1526 bfd_vma ofst;
1527 long lowword, highword;
1528
1529 /* If the symbol is dynamic but binds locally, use
1530 section+offset. */
1531 if (sec && (entry->symndx != -1
1532 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1533 {
1534 if (entry->symndx == -1)
1535 ad += entry->d.h->root.u.def.value;
1536 else
1537 ad += sym->st_value;
1538 ad += sec->output_offset;
1539 if (sec->output_section && elf_section_data (sec->output_section))
1540 idx = elf_section_data (sec->output_section)->dynindx;
1541 else
1542 idx = 0;
1543 }
1544
1545 /* If we're linking an executable at a fixed address, we can
1546 omit the dynamic relocation as long as the symbol is local to
1547 this module. */
1548 if (bfd_link_pde (info)
1549 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1550 {
1551 if (sec)
1552 ad += sec->output_section->vma;
1553 ofst = 0;
1554 if (entry->symndx != -1
1555 || entry->d.h->root.type != bfd_link_hash_undefweak)
1556 {
1557 _frvfdpic_add_rofixup (output_bfd,
1558 frvfdpic_gotfixup_section (info),
1559 frvfdpic_got_section (info)
1560 ->output_section->vma
1561 + frvfdpic_got_section (info)
1562 ->output_offset
1563 + frvfdpic_got_initial_offset (info)
1564 + entry->fd_entry, entry);
1565 _frvfdpic_add_rofixup (output_bfd,
1566 frvfdpic_gotfixup_section (info),
1567 frvfdpic_got_section (info)
1568 ->output_section->vma
1569 + frvfdpic_got_section (info)
1570 ->output_offset
1571 + frvfdpic_got_initial_offset (info)
1572 + entry->fd_entry + 4, entry);
1573 }
1574 }
1575 else
1576 {
1577 ofst =
1578 _frvfdpic_add_dyn_reloc (output_bfd,
1579 entry->lazyplt
1580 ? frvfdpic_pltrel_section (info)
1581 : frvfdpic_gotrel_section (info),
1582 _bfd_elf_section_offset
1583 (output_bfd, info,
1584 frvfdpic_got_section (info),
1585 frvfdpic_got_initial_offset (info)
1586 + entry->fd_entry)
1587 + frvfdpic_got_section (info)
1588 ->output_section->vma
1589 + frvfdpic_got_section (info)
1590 ->output_offset,
1591 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1592 }
1593
1594 /* If we've omitted the dynamic relocation, just emit the fixed
1595 addresses of the symbol and of the local GOT base offset. */
1596 if (bfd_link_pde (info)
1597 && sec
1598 && sec->output_section)
1599 {
1600 lowword = ad;
1601 highword = frvfdpic_got_section (info)->output_section->vma
1602 + frvfdpic_got_section (info)->output_offset
1603 + frvfdpic_got_initial_offset (info);
1604 }
1605 else if (entry->lazyplt)
1606 {
1607 if (ad)
1608 {
1609 (*info->callbacks->reloc_dangerous)
1610 (info, _("relocation requires zero addend"),
1611 elf_hash_table (info)->dynobj,
1612 frvfdpic_got_section (info),
1613 entry->fd_entry);
1614 return FALSE;
1615 }
1616
1617 fd_lazy_rel_offset = ofst;
1618
1619 /* A function descriptor used for lazy or local resolving is
1620 initialized such that its high word contains the output
1621 section index in which the PLT entries are located, and
1622 the low word contains the address of the lazy PLT entry
1623 entry point, that must be within the memory region
1624 assigned to that section. */
1625 lowword = entry->lzplt_entry + 4
1626 + frvfdpic_plt_section (info)->output_offset
1627 + frvfdpic_plt_section (info)->output_section->vma;
1628 highword = _frvfdpic_osec_to_segment
1629 (output_bfd, frvfdpic_plt_section (info)->output_section);
1630 }
1631 else
1632 {
1633 /* A function descriptor for a local function gets the index
1634 of the section. For a non-local function, it's
1635 disregarded. */
1636 lowword = ad;
1637 if (sec == NULL
1638 || (entry->symndx == -1 && entry->d.h->dynindx != -1
1639 && entry->d.h->dynindx == idx))
1640 highword = 0;
1641 else
1642 highword = _frvfdpic_osec_to_segment
1643 (output_bfd, sec->output_section);
1644 }
1645
1646 bfd_put_32 (output_bfd, lowword,
1647 frvfdpic_got_section (info)->contents
1648 + frvfdpic_got_initial_offset (info)
1649 + entry->fd_entry);
1650 bfd_put_32 (output_bfd, highword,
1651 frvfdpic_got_section (info)->contents
1652 + frvfdpic_got_initial_offset (info)
1653 + entry->fd_entry + 4);
1654 }
1655
1656 /* Generate code for the PLT entry. */
1657 if (entry->plt_entry != (bfd_vma) -1)
1658 {
1659 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1660 + entry->plt_entry;
1661
1662 BFD_ASSERT (entry->fd_entry);
1663
1664 /* Figure out what kind of PLT entry we need, depending on the
1665 location of the function descriptor within the GOT. */
1666 if (entry->fd_entry >= -(1 << (12 - 1))
1667 && entry->fd_entry < (1 << (12 - 1)))
1668 {
1669 /* lddi @(gr15, fd_entry), gr14 */
1670 bfd_put_32 (output_bfd,
1671 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1672 plt_code);
1673 plt_code += 4;
1674 }
1675 else
1676 {
1677 if (entry->fd_entry >= -(1 << (16 - 1))
1678 && entry->fd_entry < (1 << (16 - 1)))
1679 {
1680 /* setlos lo(fd_entry), gr14 */
1681 bfd_put_32 (output_bfd,
1682 0x9cfc0000
1683 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1684 plt_code);
1685 plt_code += 4;
1686 }
1687 else
1688 {
1689 /* sethi.p hi(fd_entry), gr14
1690 setlo lo(fd_entry), gr14 */
1691 bfd_put_32 (output_bfd,
1692 0x1cf80000
1693 | ((entry->fd_entry >> 16)
1694 & (((bfd_vma)1 << 16) - 1)),
1695 plt_code);
1696 plt_code += 4;
1697 bfd_put_32 (output_bfd,
1698 0x9cf40000
1699 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1700 plt_code);
1701 plt_code += 4;
1702 }
1703 /* ldd @(gr14,gr15),gr14 */
1704 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1705 plt_code += 4;
1706 }
1707 /* jmpl @(gr14,gr0) */
1708 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1709 }
1710
1711 /* Generate code for the lazy PLT entry. */
1712 if (entry->lzplt_entry != (bfd_vma) -1)
1713 {
1714 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1715 + entry->lzplt_entry;
1716 bfd_vma resolverStub_addr;
1717
1718 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1719 lzplt_code += 4;
1720
1721 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1722 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1723 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1724 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1725
1726 if (entry->lzplt_entry == resolverStub_addr)
1727 {
1728 /* This is a lazy PLT entry that includes a resolver call. */
1729 /* ldd @(gr15,gr0), gr4
1730 jmpl @(gr4,gr0) */
1731 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1732 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1733 }
1734 else
1735 {
1736 /* bra resolverStub */
1737 bfd_put_32 (output_bfd,
1738 0xc01a0000
1739 | (((resolverStub_addr - entry->lzplt_entry)
1740 / 4) & (((bfd_vma)1 << 16) - 1)),
1741 lzplt_code);
1742 }
1743 }
1744
1745 /* Generate relocation for GOT entry holding the TLS offset. */
1746 if (entry->tlsoff_entry)
1747 {
1748 int idx = dynindx;
1749 bfd_vma ad = addend;
1750
1751 if (entry->symndx != -1
1752 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1753 {
1754 /* If the symbol is dynamic but binds locally, use
1755 section+offset. */
1756 if (sec)
1757 {
1758 if (entry->symndx == -1)
1759 ad += entry->d.h->root.u.def.value;
1760 else
1761 ad += sym->st_value;
1762 ad += sec->output_offset;
1763 if (sec->output_section
1764 && elf_section_data (sec->output_section))
1765 idx = elf_section_data (sec->output_section)->dynindx;
1766 else
1767 idx = 0;
1768 }
1769 }
1770
1771 /* *ABS*+addend is special for TLS relocations, use only the
1772 addend. */
1773 if (bfd_link_executable (info)
1774 && idx == 0
1775 && (bfd_is_abs_section (sec)
1776 || bfd_is_und_section (sec)))
1777 ;
1778 /* If we're linking an executable, we can entirely omit the
1779 dynamic relocation if the symbol is local to this module. */
1780 else if (bfd_link_executable (info)
1781 && (entry->symndx != -1
1782 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1783 {
1784 if (sec)
1785 ad += sec->output_section->vma - tls_biased_base (info);
1786 }
1787 else
1788 {
1789 if (idx == 0
1790 && (bfd_is_abs_section (sec)
1791 || bfd_is_und_section (sec)))
1792 {
1793 if (! elf_hash_table (info)->tls_sec)
1794 {
1795 (*info->callbacks->undefined_symbol)
1796 (info, "TLS section", elf_hash_table (info)->dynobj,
1797 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1798 return FALSE;
1799 }
1800 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1801 ad += FRVFDPIC_TLS_BIAS;
1802 }
1803 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1804 _bfd_elf_section_offset
1805 (output_bfd, info,
1806 frvfdpic_got_section (info),
1807 frvfdpic_got_initial_offset (info)
1808 + entry->tlsoff_entry)
1809 + frvfdpic_got_section (info)
1810 ->output_section->vma
1811 + frvfdpic_got_section (info)
1812 ->output_offset,
1813 R_FRV_TLSOFF, idx, ad, entry);
1814 }
1815
1816 bfd_put_32 (output_bfd, ad,
1817 frvfdpic_got_section (info)->contents
1818 + frvfdpic_got_initial_offset (info)
1819 + entry->tlsoff_entry);
1820 }
1821
1822 if (entry->tlsdesc_entry)
1823 {
1824 int idx = dynindx;
1825 bfd_vma ad = addend;
1826
1827 /* If the symbol is dynamic but binds locally, use
1828 section+offset. */
1829 if (sec && (entry->symndx != -1
1830 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1831 {
1832 if (entry->symndx == -1)
1833 ad += entry->d.h->root.u.def.value;
1834 else
1835 ad += sym->st_value;
1836 ad += sec->output_offset;
1837 if (sec->output_section && elf_section_data (sec->output_section))
1838 idx = elf_section_data (sec->output_section)->dynindx;
1839 else
1840 idx = 0;
1841 }
1842
1843 /* If we didn't set up a TLS offset entry, but we're linking an
1844 executable and the symbol binds locally, we can use the
1845 module offset in the TLS descriptor in relaxations. */
1846 if (bfd_link_executable (info) && ! entry->tlsoff_entry)
1847 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1848
1849 if (bfd_link_pde (info)
1850 && ((idx == 0
1851 && (bfd_is_abs_section (sec)
1852 || bfd_is_und_section (sec)))
1853 || entry->symndx != -1
1854 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1855 {
1856 /* *ABS*+addend is special for TLS relocations, use only the
1857 addend for the TLS offset, and take the module id as
1858 0. */
1859 if (idx == 0
1860 && (bfd_is_abs_section (sec)
1861 || bfd_is_und_section (sec)))
1862 ;
1863 /* For other TLS symbols that bind locally, add the section
1864 TLS offset to the addend. */
1865 else if (sec)
1866 ad += sec->output_section->vma - tls_biased_base (info);
1867
1868 bfd_put_32 (output_bfd,
1869 frvfdpic_plt_section (info)->output_section->vma
1870 + frvfdpic_plt_section (info)->output_offset
1871 + frvfdpic_plt_tls_ret_offset (info),
1872 frvfdpic_got_section (info)->contents
1873 + frvfdpic_got_initial_offset (info)
1874 + entry->tlsdesc_entry);
1875
1876 _frvfdpic_add_rofixup (output_bfd,
1877 frvfdpic_gotfixup_section (info),
1878 frvfdpic_got_section (info)
1879 ->output_section->vma
1880 + frvfdpic_got_section (info)
1881 ->output_offset
1882 + frvfdpic_got_initial_offset (info)
1883 + entry->tlsdesc_entry, entry);
1884
1885 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1886
1887 /* We've used one of the reserved fixups, so discount it so
1888 that we can check at the end that we've used them
1889 all. */
1890 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1891
1892 /* While at that, make sure the ret instruction makes to the
1893 right location in the PLT. We could do it only when we
1894 got to 0, but since the check at the end will only print
1895 a warning, make sure we have the ret in place in case the
1896 warning is missed. */
1897 bfd_put_32 (output_bfd, 0xc03a4000,
1898 frvfdpic_plt_section (info)->contents
1899 + frvfdpic_plt_tls_ret_offset (info));
1900 }
1901 else
1902 {
1903 if (idx == 0
1904 && (bfd_is_abs_section (sec)
1905 || bfd_is_und_section (sec)))
1906 {
1907 if (! elf_hash_table (info)->tls_sec)
1908 {
1909 (*info->callbacks->undefined_symbol)
1910 (info, "TLS section", elf_hash_table (info)->dynobj,
1911 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1912 return FALSE;
1913 }
1914 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1915 ad += FRVFDPIC_TLS_BIAS;
1916 }
1917
1918 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1919 _bfd_elf_section_offset
1920 (output_bfd, info,
1921 frvfdpic_got_section (info),
1922 frvfdpic_got_initial_offset (info)
1923 + entry->tlsdesc_entry)
1924 + frvfdpic_got_section (info)
1925 ->output_section->vma
1926 + frvfdpic_got_section (info)
1927 ->output_offset,
1928 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1929
1930 bfd_put_32 (output_bfd, 0,
1931 frvfdpic_got_section (info)->contents
1932 + frvfdpic_got_initial_offset (info)
1933 + entry->tlsdesc_entry);
1934 }
1935
1936 bfd_put_32 (output_bfd, ad,
1937 frvfdpic_got_section (info)->contents
1938 + frvfdpic_got_initial_offset (info)
1939 + entry->tlsdesc_entry + 4);
1940 }
1941
1942 /* Generate code for the get-TLS-offset PLT entry. */
1943 if (entry->tlsplt_entry != (bfd_vma) -1)
1944 {
1945 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1946 + entry->tlsplt_entry;
1947
1948 if (bfd_link_executable (info)
1949 && (entry->symndx != -1
1950 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1951 {
1952 int idx = dynindx;
1953 bfd_vma ad = addend;
1954
1955 /* sec may be NULL when referencing an undefweak symbol
1956 while linking a static executable. */
1957 if (!sec)
1958 {
1959 BFD_ASSERT (entry->symndx == -1
1960 && entry->d.h->root.type == bfd_link_hash_undefweak);
1961 }
1962 else
1963 {
1964 if (entry->symndx == -1)
1965 ad += entry->d.h->root.u.def.value;
1966 else
1967 ad += sym->st_value;
1968 ad += sec->output_offset;
1969 if (sec->output_section
1970 && elf_section_data (sec->output_section))
1971 idx = elf_section_data (sec->output_section)->dynindx;
1972 else
1973 idx = 0;
1974 }
1975
1976 /* *ABS*+addend is special for TLS relocations, use only the
1977 addend for the TLS offset, and take the module id as
1978 0. */
1979 if (idx == 0
1980 && (bfd_is_abs_section (sec)
1981 || bfd_is_und_section (sec)))
1982 ;
1983 /* For other TLS symbols that bind locally, add the section
1984 TLS offset to the addend. */
1985 else if (sec)
1986 ad += sec->output_section->vma - tls_biased_base (info);
1987
1988 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
1989 && (bfd_signed_vma)ad < (1 << (16 - 1)))
1990 {
1991 /* setlos lo(ad), gr9 */
1992 bfd_put_32 (output_bfd,
1993 0x92fc0000
1994 | (ad
1995 & (((bfd_vma)1 << 16) - 1)),
1996 plt_code);
1997 plt_code += 4;
1998 }
1999 else
2000 {
2001 /* sethi.p hi(ad), gr9
2002 setlo lo(ad), gr9 */
2003 bfd_put_32 (output_bfd,
2004 0x12f80000
2005 | ((ad >> 16)
2006 & (((bfd_vma)1 << 16) - 1)),
2007 plt_code);
2008 plt_code += 4;
2009 bfd_put_32 (output_bfd,
2010 0x92f40000
2011 | (ad
2012 & (((bfd_vma)1 << 16) - 1)),
2013 plt_code);
2014 plt_code += 4;
2015 }
2016 /* ret */
2017 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2018 }
2019 else if (entry->tlsoff_entry)
2020 {
2021 /* Figure out what kind of PLT entry we need, depending on the
2022 location of the TLS descriptor within the GOT. */
2023 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2024 && entry->tlsoff_entry < (1 << (12 - 1)))
2025 {
2026 /* ldi @(gr15, tlsoff_entry), gr9 */
2027 bfd_put_32 (output_bfd,
2028 0x92c8f000 | (entry->tlsoff_entry
2029 & ((1 << 12) - 1)),
2030 plt_code);
2031 plt_code += 4;
2032 }
2033 else
2034 {
2035 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2036 && entry->tlsoff_entry < (1 << (16 - 1)))
2037 {
2038 /* setlos lo(tlsoff_entry), gr8 */
2039 bfd_put_32 (output_bfd,
2040 0x90fc0000
2041 | (entry->tlsoff_entry
2042 & (((bfd_vma)1 << 16) - 1)),
2043 plt_code);
2044 plt_code += 4;
2045 }
2046 else
2047 {
2048 /* sethi.p hi(tlsoff_entry), gr8
2049 setlo lo(tlsoff_entry), gr8 */
2050 bfd_put_32 (output_bfd,
2051 0x10f80000
2052 | ((entry->tlsoff_entry >> 16)
2053 & (((bfd_vma)1 << 16) - 1)),
2054 plt_code);
2055 plt_code += 4;
2056 bfd_put_32 (output_bfd,
2057 0x90f40000
2058 | (entry->tlsoff_entry
2059 & (((bfd_vma)1 << 16) - 1)),
2060 plt_code);
2061 plt_code += 4;
2062 }
2063 /* ld @(gr15,gr8),gr9 */
2064 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2065 plt_code += 4;
2066 }
2067 /* ret */
2068 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2069 }
2070 else
2071 {
2072 BFD_ASSERT (entry->tlsdesc_entry);
2073
2074 /* Figure out what kind of PLT entry we need, depending on the
2075 location of the TLS descriptor within the GOT. */
2076 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2077 && entry->tlsdesc_entry < (1 << (12 - 1)))
2078 {
2079 /* lddi @(gr15, tlsdesc_entry), gr8 */
2080 bfd_put_32 (output_bfd,
2081 0x90ccf000 | (entry->tlsdesc_entry
2082 & ((1 << 12) - 1)),
2083 plt_code);
2084 plt_code += 4;
2085 }
2086 else
2087 {
2088 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2089 && entry->tlsdesc_entry < (1 << (16 - 1)))
2090 {
2091 /* setlos lo(tlsdesc_entry), gr8 */
2092 bfd_put_32 (output_bfd,
2093 0x90fc0000
2094 | (entry->tlsdesc_entry
2095 & (((bfd_vma)1 << 16) - 1)),
2096 plt_code);
2097 plt_code += 4;
2098 }
2099 else
2100 {
2101 /* sethi.p hi(tlsdesc_entry), gr8
2102 setlo lo(tlsdesc_entry), gr8 */
2103 bfd_put_32 (output_bfd,
2104 0x10f80000
2105 | ((entry->tlsdesc_entry >> 16)
2106 & (((bfd_vma)1 << 16) - 1)),
2107 plt_code);
2108 plt_code += 4;
2109 bfd_put_32 (output_bfd,
2110 0x90f40000
2111 | (entry->tlsdesc_entry
2112 & (((bfd_vma)1 << 16) - 1)),
2113 plt_code);
2114 plt_code += 4;
2115 }
2116 /* ldd @(gr15,gr8),gr8 */
2117 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2118 plt_code += 4;
2119 }
2120 /* jmpl @(gr8,gr0) */
2121 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2122 }
2123 }
2124
2125 return TRUE;
2126 }
2127
2128 /* Handle an FRV small data reloc. */
2129
2130 static bfd_reloc_status_type
2131 elf32_frv_relocate_gprel12 (struct bfd_link_info *info,
2132 bfd *input_bfd,
2133 asection *input_section,
2134 Elf_Internal_Rela *relocation,
2135 bfd_byte *contents,
2136 bfd_vma value)
2137 {
2138 bfd_vma insn;
2139 bfd_vma gp;
2140 struct bfd_link_hash_entry *h;
2141
2142 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2143
2144 gp = (h->u.def.value
2145 + h->u.def.section->output_section->vma
2146 + h->u.def.section->output_offset);
2147
2148 value -= input_section->output_section->vma;
2149 value -= (gp - input_section->output_section->vma);
2150
2151 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2152
2153 value += relocation->r_addend;
2154
2155 if ((long) value > 0x7ff || (long) value < -0x800)
2156 return bfd_reloc_overflow;
2157
2158 bfd_put_32 (input_bfd,
2159 (insn & 0xfffff000) | (value & 0xfff),
2160 contents + relocation->r_offset);
2161
2162 return bfd_reloc_ok;
2163 }
2164
2165 /* Handle an FRV small data reloc. for the u12 field. */
2166
2167 static bfd_reloc_status_type
2168 elf32_frv_relocate_gprelu12 (struct bfd_link_info *info,
2169 bfd *input_bfd,
2170 asection *input_section,
2171 Elf_Internal_Rela *relocation,
2172 bfd_byte *contents,
2173 bfd_vma value)
2174 {
2175 bfd_vma insn;
2176 bfd_vma gp;
2177 struct bfd_link_hash_entry *h;
2178 bfd_vma mask;
2179
2180 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2181
2182 gp = (h->u.def.value
2183 + h->u.def.section->output_section->vma
2184 + h->u.def.section->output_offset);
2185
2186 value -= input_section->output_section->vma;
2187 value -= (gp - input_section->output_section->vma);
2188
2189 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2190
2191 value += relocation->r_addend;
2192
2193 if ((long) value > 0x7ff || (long) value < -0x800)
2194 return bfd_reloc_overflow;
2195
2196 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2197 mask = 0x3f03f;
2198 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2199
2200 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2201
2202 return bfd_reloc_ok;
2203 }
2204
2205 /* Handle an FRV ELF HI16 reloc. */
2206
2207 static bfd_reloc_status_type
2208 elf32_frv_relocate_hi16 (bfd *input_bfd,
2209 Elf_Internal_Rela *relhi,
2210 bfd_byte *contents,
2211 bfd_vma value)
2212 {
2213 bfd_vma insn;
2214
2215 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2216
2217 value += relhi->r_addend;
2218 value = ((value >> 16) & 0xffff);
2219
2220 insn = (insn & 0xffff0000) | value;
2221
2222 if ((long) value > 0xffff || (long) value < -0x10000)
2223 return bfd_reloc_overflow;
2224
2225 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2226 return bfd_reloc_ok;
2227
2228 }
2229 static bfd_reloc_status_type
2230 elf32_frv_relocate_lo16 (bfd *input_bfd,
2231 Elf_Internal_Rela *rello,
2232 bfd_byte *contents,
2233 bfd_vma value)
2234 {
2235 bfd_vma insn;
2236
2237 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2238
2239 value += rello->r_addend;
2240 value = value & 0xffff;
2241
2242 insn = (insn & 0xffff0000) | value;
2243
2244 if ((long) value > 0xffff || (long) value < -0x10000)
2245 return bfd_reloc_overflow;
2246
2247 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2248 return bfd_reloc_ok;
2249 }
2250
2251 /* Perform the relocation for the CALL label24 instruction. */
2252
2253 static bfd_reloc_status_type
2254 elf32_frv_relocate_label24 (bfd *input_bfd,
2255 asection *input_section,
2256 Elf_Internal_Rela *rello,
2257 bfd_byte *contents,
2258 bfd_vma value)
2259 {
2260 bfd_vma insn;
2261 bfd_vma label6;
2262 bfd_vma label18;
2263
2264 /* The format for the call instruction is:
2265
2266 0 000000 0001111 000000000000000000
2267 label6 opcode label18
2268
2269 The branch calculation is: pc + (4*label24)
2270 where label24 is the concatenation of label6 and label18. */
2271
2272 /* Grab the instruction. */
2273 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2274
2275 value -= input_section->output_section->vma + input_section->output_offset;
2276 value -= rello->r_offset;
2277 value += rello->r_addend;
2278
2279 value = value >> 2;
2280
2281 label6 = value & 0xfc0000;
2282 label6 = label6 << 7;
2283
2284 label18 = value & 0x3ffff;
2285
2286 insn = insn & 0x803c0000;
2287 insn = insn | label6;
2288 insn = insn | label18;
2289
2290 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2291
2292 return bfd_reloc_ok;
2293 }
2294
2295 static bfd_reloc_status_type
2296 elf32_frv_relocate_gprelhi (struct bfd_link_info *info,
2297 bfd *input_bfd,
2298 asection *input_section,
2299 Elf_Internal_Rela *relocation,
2300 bfd_byte *contents,
2301 bfd_vma value)
2302 {
2303 bfd_vma insn;
2304 bfd_vma gp;
2305 struct bfd_link_hash_entry *h;
2306
2307 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2308
2309 gp = (h->u.def.value
2310 + h->u.def.section->output_section->vma
2311 + h->u.def.section->output_offset);
2312
2313 value -= input_section->output_section->vma;
2314 value -= (gp - input_section->output_section->vma);
2315 value += relocation->r_addend;
2316 value = ((value >> 16) & 0xffff);
2317
2318 if ((long) value > 0xffff || (long) value < -0x10000)
2319 return bfd_reloc_overflow;
2320
2321 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2322 insn = (insn & 0xffff0000) | value;
2323
2324 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2325 return bfd_reloc_ok;
2326 }
2327
2328 static bfd_reloc_status_type
2329 elf32_frv_relocate_gprello (struct bfd_link_info *info,
2330 bfd *input_bfd,
2331 asection *input_section,
2332 Elf_Internal_Rela *relocation,
2333 bfd_byte *contents,
2334 bfd_vma value)
2335 {
2336 bfd_vma insn;
2337 bfd_vma gp;
2338 struct bfd_link_hash_entry *h;
2339
2340 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2341
2342 gp = (h->u.def.value
2343 + h->u.def.section->output_section->vma
2344 + h->u.def.section->output_offset);
2345
2346 value -= input_section->output_section->vma;
2347 value -= (gp - input_section->output_section->vma);
2348 value += relocation->r_addend;
2349 value = value & 0xffff;
2350
2351 if ((long) value > 0xffff || (long) value < -0x10000)
2352 return bfd_reloc_overflow;
2353
2354 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2355 insn = (insn & 0xffff0000) | value;
2356
2357 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2358
2359 return bfd_reloc_ok;
2360 }
2361
2362 static reloc_howto_type *
2363 frv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2364 bfd_reloc_code_real_type code)
2365 {
2366 switch (code)
2367 {
2368 default:
2369 break;
2370
2371 case BFD_RELOC_NONE:
2372 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2373
2374 case BFD_RELOC_32:
2375 if (elf_elfheader (abfd)->e_type == ET_EXEC
2376 || elf_elfheader (abfd)->e_type == ET_DYN)
2377 return &elf32_frv_rel_32_howto;
2378 /* Fall through. */
2379 case BFD_RELOC_CTOR:
2380 return &elf32_frv_howto_table[ (int) R_FRV_32];
2381
2382 case BFD_RELOC_FRV_LABEL16:
2383 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2384
2385 case BFD_RELOC_FRV_LABEL24:
2386 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2387
2388 case BFD_RELOC_FRV_LO16:
2389 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2390
2391 case BFD_RELOC_FRV_HI16:
2392 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2393
2394 case BFD_RELOC_FRV_GPREL12:
2395 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2396
2397 case BFD_RELOC_FRV_GPRELU12:
2398 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2399
2400 case BFD_RELOC_FRV_GPREL32:
2401 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2402
2403 case BFD_RELOC_FRV_GPRELHI:
2404 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2405
2406 case BFD_RELOC_FRV_GPRELLO:
2407 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2408
2409 case BFD_RELOC_FRV_GOT12:
2410 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2411
2412 case BFD_RELOC_FRV_GOTHI:
2413 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2414
2415 case BFD_RELOC_FRV_GOTLO:
2416 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2417
2418 case BFD_RELOC_FRV_FUNCDESC:
2419 if (elf_elfheader (abfd)->e_type == ET_EXEC
2420 || elf_elfheader (abfd)->e_type == ET_DYN)
2421 return &elf32_frv_rel_funcdesc_howto;
2422 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2423
2424 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2425 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2426
2427 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2428 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2429
2430 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2431 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2432
2433 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2434 if (elf_elfheader (abfd)->e_type == ET_EXEC
2435 || elf_elfheader (abfd)->e_type == ET_DYN)
2436 return &elf32_frv_rel_funcdesc_value_howto;
2437 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2438
2439 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2440 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2441
2442 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2443 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2444
2445 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2446 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2447
2448 case BFD_RELOC_FRV_GOTOFF12:
2449 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2450
2451 case BFD_RELOC_FRV_GOTOFFHI:
2452 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2453
2454 case BFD_RELOC_FRV_GOTOFFLO:
2455 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2456
2457 case BFD_RELOC_FRV_GETTLSOFF:
2458 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2459
2460 case BFD_RELOC_FRV_TLSDESC_VALUE:
2461 if (elf_elfheader (abfd)->e_type == ET_EXEC
2462 || elf_elfheader (abfd)->e_type == ET_DYN)
2463 return &elf32_frv_rel_tlsdesc_value_howto;
2464 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2465
2466 case BFD_RELOC_FRV_GOTTLSDESC12:
2467 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2468
2469 case BFD_RELOC_FRV_GOTTLSDESCHI:
2470 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2471
2472 case BFD_RELOC_FRV_GOTTLSDESCLO:
2473 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2474
2475 case BFD_RELOC_FRV_TLSMOFF12:
2476 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2477
2478 case BFD_RELOC_FRV_TLSMOFFHI:
2479 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2480
2481 case BFD_RELOC_FRV_TLSMOFFLO:
2482 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2483
2484 case BFD_RELOC_FRV_GOTTLSOFF12:
2485 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2486
2487 case BFD_RELOC_FRV_GOTTLSOFFHI:
2488 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2489
2490 case BFD_RELOC_FRV_GOTTLSOFFLO:
2491 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2492
2493 case BFD_RELOC_FRV_TLSOFF:
2494 if (elf_elfheader (abfd)->e_type == ET_EXEC
2495 || elf_elfheader (abfd)->e_type == ET_DYN)
2496 return &elf32_frv_rel_tlsoff_howto;
2497 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2498
2499 case BFD_RELOC_FRV_TLSDESC_RELAX:
2500 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2501
2502 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2503 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2504
2505 case BFD_RELOC_FRV_TLSOFF_RELAX:
2506 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2507
2508 case BFD_RELOC_FRV_TLSMOFF:
2509 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2510
2511 case BFD_RELOC_VTABLE_INHERIT:
2512 return &elf32_frv_vtinherit_howto;
2513
2514 case BFD_RELOC_VTABLE_ENTRY:
2515 return &elf32_frv_vtentry_howto;
2516 }
2517
2518 return NULL;
2519 }
2520
2521 static reloc_howto_type *
2522 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2523 {
2524 unsigned int i;
2525
2526 for (i = 0;
2527 i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2528 i++)
2529 if (elf32_frv_howto_table[i].name != NULL
2530 && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2531 return &elf32_frv_howto_table[i];
2532
2533 if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2534 return &elf32_frv_vtinherit_howto;
2535 if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2536 return &elf32_frv_vtentry_howto;
2537
2538 return NULL;
2539 }
2540
2541 /* Set the howto pointer for an FRV ELF reloc. */
2542
2543 static void
2544 frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2545 arelent *cache_ptr,
2546 Elf_Internal_Rela *dst)
2547 {
2548 unsigned int r_type;
2549
2550 r_type = ELF32_R_TYPE (dst->r_info);
2551 switch (r_type)
2552 {
2553 case R_FRV_GNU_VTINHERIT:
2554 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2555 break;
2556
2557 case R_FRV_GNU_VTENTRY:
2558 cache_ptr->howto = &elf32_frv_vtentry_howto;
2559 break;
2560
2561 default:
2562 if (r_type >= (unsigned int) R_FRV_max)
2563 {
2564 /* xgettext:c-format */
2565 _bfd_error_handler (_("%B: invalid FRV reloc number: %d"), abfd, r_type);
2566 r_type = 0;
2567 }
2568 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2569 break;
2570 }
2571 }
2572
2573 /* Set the howto pointer for an FRV ELF REL reloc. */
2574 static void
2575 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2576 arelent *cache_ptr, Elf_Internal_Rela *dst)
2577 {
2578 unsigned int r_type;
2579
2580 r_type = ELF32_R_TYPE (dst->r_info);
2581 switch (r_type)
2582 {
2583 case R_FRV_32:
2584 cache_ptr->howto = &elf32_frv_rel_32_howto;
2585 break;
2586
2587 case R_FRV_FUNCDESC:
2588 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2589 break;
2590
2591 case R_FRV_FUNCDESC_VALUE:
2592 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2593 break;
2594
2595 case R_FRV_TLSDESC_VALUE:
2596 cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2597 break;
2598
2599 case R_FRV_TLSOFF:
2600 cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2601 break;
2602
2603 default:
2604 cache_ptr->howto = NULL;
2605 break;
2606 }
2607 }
2608 \f
2609 /* Perform a single relocation. By default we use the standard BFD
2610 routines, but a few relocs, we have to do them ourselves. */
2611
2612 static bfd_reloc_status_type
2613 frv_final_link_relocate (reloc_howto_type *howto,
2614 bfd *input_bfd,
2615 asection *input_section,
2616 bfd_byte *contents,
2617 Elf_Internal_Rela *rel,
2618 bfd_vma relocation)
2619 {
2620 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2621 contents, rel->r_offset, relocation,
2622 rel->r_addend);
2623 }
2624
2625 \f
2626 /* Relocate an FRV ELF section.
2627
2628 The RELOCATE_SECTION function is called by the new ELF backend linker
2629 to handle the relocations for a section.
2630
2631 The relocs are always passed as Rela structures; if the section
2632 actually uses Rel structures, the r_addend field will always be
2633 zero.
2634
2635 This function is responsible for adjusting the section contents as
2636 necessary, and (if using Rela relocs and generating a relocatable
2637 output file) adjusting the reloc addend as necessary.
2638
2639 This function does not have to worry about setting the reloc
2640 address or the reloc symbol index.
2641
2642 LOCAL_SYMS is a pointer to the swapped in local symbols.
2643
2644 LOCAL_SECTIONS is an array giving the section in the input file
2645 corresponding to the st_shndx field of each local symbol.
2646
2647 The global hash table entry for the global symbols can be found
2648 via elf_sym_hashes (input_bfd).
2649
2650 When generating relocatable output, this function must handle
2651 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2652 going to be the section symbol corresponding to the output
2653 section, which means that the addend must be adjusted
2654 accordingly. */
2655
2656 static bfd_boolean
2657 elf32_frv_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2658 struct bfd_link_info *info,
2659 bfd *input_bfd,
2660 asection *input_section,
2661 bfd_byte *contents,
2662 Elf_Internal_Rela *relocs,
2663 Elf_Internal_Sym *local_syms,
2664 asection **local_sections)
2665 {
2666 Elf_Internal_Shdr *symtab_hdr;
2667 struct elf_link_hash_entry **sym_hashes;
2668 Elf_Internal_Rela *rel;
2669 Elf_Internal_Rela *relend;
2670 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2671 check_segment[2];
2672 int silence_segment_error = !bfd_link_pic (info);
2673 unsigned long insn;
2674
2675 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2676 sym_hashes = elf_sym_hashes (input_bfd);
2677 relend = relocs + input_section->reloc_count;
2678
2679 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2680 input_section->output_section);
2681 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2682 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2683 frvfdpic_got_section (info)
2684 ->output_section);
2685 else
2686 got_segment = -1;
2687 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2688 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2689 frvfdpic_gotfixup_section (info)
2690 ->output_section);
2691 else
2692 gprel_segment = -1;
2693 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2694 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2695 frvfdpic_plt_section (info)
2696 ->output_section);
2697 else
2698 plt_segment = -1;
2699 if (elf_hash_table (info)->tls_sec)
2700 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2701 elf_hash_table (info)->tls_sec);
2702 else
2703 tls_segment = -1;
2704
2705 for (rel = relocs; rel < relend; rel ++)
2706 {
2707 reloc_howto_type *howto;
2708 unsigned long r_symndx;
2709 Elf_Internal_Sym *sym;
2710 asection *sec;
2711 struct elf_link_hash_entry *h;
2712 bfd_vma relocation;
2713 bfd_reloc_status_type r;
2714 const char *name;
2715 int r_type;
2716 asection *osec;
2717 struct frvfdpic_relocs_info *picrel;
2718 bfd_vma orig_addend = rel->r_addend;
2719
2720 r_type = ELF32_R_TYPE (rel->r_info);
2721
2722 if ( r_type == R_FRV_GNU_VTINHERIT
2723 || r_type == R_FRV_GNU_VTENTRY)
2724 continue;
2725
2726 r_symndx = ELF32_R_SYM (rel->r_info);
2727 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2728 h = NULL;
2729 sym = NULL;
2730 sec = NULL;
2731
2732 if (r_symndx < symtab_hdr->sh_info)
2733 {
2734 sym = local_syms + r_symndx;
2735 osec = sec = local_sections [r_symndx];
2736 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2737
2738 name = bfd_elf_string_from_elf_section
2739 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2740 if (name == NULL || name[0] == 0)
2741 name = bfd_section_name (input_bfd, sec);
2742 }
2743 else
2744 {
2745 bfd_boolean warned, ignored;
2746 bfd_boolean unresolved_reloc;
2747
2748 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2749 r_symndx, symtab_hdr, sym_hashes,
2750 h, sec, relocation,
2751 unresolved_reloc, warned, ignored);
2752 osec = sec;
2753 name = h->root.root.string;
2754 }
2755
2756 if (sec != NULL && discarded_section (sec))
2757 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2758 rel, 1, relend, howto, 0, contents);
2759
2760 if (bfd_link_relocatable (info))
2761 continue;
2762
2763 if (r_type != R_FRV_TLSMOFF
2764 && h != NULL
2765 && (h->root.type == bfd_link_hash_defined
2766 || h->root.type == bfd_link_hash_defweak)
2767 && !FRVFDPIC_SYM_LOCAL (info, h))
2768 {
2769 osec = sec = NULL;
2770 relocation = 0;
2771 }
2772
2773 switch (r_type)
2774 {
2775 case R_FRV_LABEL24:
2776 case R_FRV_32:
2777 if (! IS_FDPIC (output_bfd))
2778 goto non_fdpic;
2779 /* Fall through. */
2780
2781 case R_FRV_GOT12:
2782 case R_FRV_GOTHI:
2783 case R_FRV_GOTLO:
2784 case R_FRV_FUNCDESC_GOT12:
2785 case R_FRV_FUNCDESC_GOTHI:
2786 case R_FRV_FUNCDESC_GOTLO:
2787 case R_FRV_GOTOFF12:
2788 case R_FRV_GOTOFFHI:
2789 case R_FRV_GOTOFFLO:
2790 case R_FRV_FUNCDESC_GOTOFF12:
2791 case R_FRV_FUNCDESC_GOTOFFHI:
2792 case R_FRV_FUNCDESC_GOTOFFLO:
2793 case R_FRV_FUNCDESC:
2794 case R_FRV_FUNCDESC_VALUE:
2795 case R_FRV_GETTLSOFF:
2796 case R_FRV_TLSDESC_VALUE:
2797 case R_FRV_GOTTLSDESC12:
2798 case R_FRV_GOTTLSDESCHI:
2799 case R_FRV_GOTTLSDESCLO:
2800 case R_FRV_TLSMOFF12:
2801 case R_FRV_TLSMOFFHI:
2802 case R_FRV_TLSMOFFLO:
2803 case R_FRV_GOTTLSOFF12:
2804 case R_FRV_GOTTLSOFFHI:
2805 case R_FRV_GOTTLSOFFLO:
2806 case R_FRV_TLSOFF:
2807 case R_FRV_TLSDESC_RELAX:
2808 case R_FRV_GETTLSOFF_RELAX:
2809 case R_FRV_TLSOFF_RELAX:
2810 case R_FRV_TLSMOFF:
2811 if (h != NULL)
2812 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2813 (info), input_bfd, h,
2814 orig_addend, INSERT);
2815 else
2816 /* In order to find the entry we created before, we must
2817 use the original addend, not the one that may have been
2818 modified by _bfd_elf_rela_local_sym(). */
2819 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2820 (info), input_bfd, r_symndx,
2821 orig_addend, INSERT);
2822 if (! picrel)
2823 return FALSE;
2824
2825 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2826 osec, sym,
2827 rel->r_addend))
2828 {
2829 info->callbacks->einfo
2830 /* xgettext:c-format */
2831 (_("%H: relocation to `%s+%v'"
2832 " may have caused the error above\n"),
2833 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2834 return FALSE;
2835 }
2836
2837 break;
2838
2839 default:
2840 non_fdpic:
2841 picrel = NULL;
2842 if (h
2843 && ! FRVFDPIC_SYM_LOCAL (info, h)
2844 && _bfd_elf_section_offset (output_bfd, info, input_section,
2845 rel->r_offset) != (bfd_vma) -1)
2846 {
2847 info->callbacks->einfo
2848 (_("%H: relocation references symbol"
2849 " not defined in the module\n"),
2850 input_bfd, input_section, rel->r_offset);
2851 return FALSE;
2852 }
2853 break;
2854 }
2855
2856 switch (r_type)
2857 {
2858 case R_FRV_GETTLSOFF:
2859 case R_FRV_TLSDESC_VALUE:
2860 case R_FRV_GOTTLSDESC12:
2861 case R_FRV_GOTTLSDESCHI:
2862 case R_FRV_GOTTLSDESCLO:
2863 case R_FRV_TLSMOFF12:
2864 case R_FRV_TLSMOFFHI:
2865 case R_FRV_TLSMOFFLO:
2866 case R_FRV_GOTTLSOFF12:
2867 case R_FRV_GOTTLSOFFHI:
2868 case R_FRV_GOTTLSOFFLO:
2869 case R_FRV_TLSOFF:
2870 case R_FRV_TLSDESC_RELAX:
2871 case R_FRV_GETTLSOFF_RELAX:
2872 case R_FRV_TLSOFF_RELAX:
2873 case R_FRV_TLSMOFF:
2874 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2875 relocation += tls_biased_base (info);
2876 break;
2877
2878 default:
2879 break;
2880 }
2881
2882 /* Try to apply TLS relaxations. */
2883 if (1)
2884 switch (r_type)
2885 {
2886
2887 #define LOCAL_EXEC_P(info, picrel) \
2888 (bfd_link_executable (info) \
2889 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2890 #define INITIAL_EXEC_P(info, picrel) \
2891 ((bfd_link_executable (info)|| (info)->flags & DF_STATIC_TLS) \
2892 && (picrel)->tlsoff_entry)
2893
2894 #define IN_RANGE_FOR_OFST12_P(value) \
2895 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2896 #define IN_RANGE_FOR_SETLOS_P(value) \
2897 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2898 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2899 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2900
2901 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2902 (LOCAL_EXEC_P ((info), (picrel)) \
2903 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2904 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2905 (INITIAL_EXEC_P ((info), (picrel)) \
2906 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2907
2908 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2909 (LOCAL_EXEC_P ((info), (picrel)))
2910 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2911 (INITIAL_EXEC_P ((info), (picrel)))
2912
2913 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2914 (LOCAL_EXEC_P ((info), (picrel)) \
2915 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2916
2917 case R_FRV_GETTLSOFF:
2918 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2919
2920 /* Is this a call instruction? */
2921 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2922 {
2923 info->callbacks->einfo
2924 (_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
2925 input_bfd, input_section, rel->r_offset);
2926 return FALSE;
2927 }
2928
2929 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2930 relocation + rel->r_addend))
2931 {
2932 /* Replace the call instruction (except the packing bit)
2933 with setlos #tlsmofflo(symbol+offset), gr9. */
2934 insn &= (unsigned long)0x80000000;
2935 insn |= (unsigned long)0x12fc0000;
2936 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2937
2938 r_type = R_FRV_TLSMOFFLO;
2939 howto = elf32_frv_howto_table + r_type;
2940 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2941 }
2942
2943 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
2944 {
2945 /* Replace the call instruction (except the packing bit)
2946 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
2947 insn &= (unsigned long)0x80000000;
2948 insn |= (unsigned long)0x12c8f000;
2949 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2950
2951 r_type = R_FRV_GOTTLSOFF12;
2952 howto = elf32_frv_howto_table + r_type;
2953 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2954 }
2955
2956 break;
2957
2958 case R_FRV_GOTTLSDESC12:
2959 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2960
2961 /* Is this an lddi instruction? */
2962 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
2963 {
2964 info->callbacks->einfo
2965 (_("%H: R_FRV_GOTTLSDESC12"
2966 " not applied to an lddi instruction\n"),
2967 input_bfd, input_section, rel->r_offset);
2968 return FALSE;
2969 }
2970
2971 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2972 relocation + rel->r_addend)
2973 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
2974 info))
2975 {
2976 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2977 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
2978 Preserve the packing bit. */
2979 insn = (insn & (unsigned long)0x80000000)
2980 | ((insn + (unsigned long)0x02000000)
2981 & (unsigned long)0x7e000000);
2982 insn |= (unsigned long)0x00fc0000;
2983 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2984
2985 r_type = R_FRV_TLSMOFFLO;
2986 howto = elf32_frv_howto_table + r_type;
2987 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2988 }
2989
2990 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2991 relocation + rel->r_addend))
2992 {
2993 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2994 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
2995 Preserve the packing bit. */
2996 insn = (insn & (unsigned long)0x80000000)
2997 | ((insn + (unsigned long)0x02000000)
2998 & (unsigned long)0x7e000000);
2999 insn |= (unsigned long)0x00f80000;
3000 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3001
3002 r_type = R_FRV_TLSMOFFHI;
3003 howto = elf32_frv_howto_table + r_type;
3004 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3005 }
3006
3007 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3008 {
3009 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3010 with ldi @(grB, #gottlsoff12(symbol+offset),
3011 gr<C+1>. Preserve the packing bit. If gottlsoff12
3012 overflows, we'll error out, but that's sort-of ok,
3013 since we'd started with gottlsdesc12, that's actually
3014 more demanding. Compiling with -fPIE instead of
3015 -fpie would fix it; linking with --relax should fix
3016 it as well. */
3017 insn = (insn & (unsigned long)0x80cbf000)
3018 | ((insn + (unsigned long)0x02000000)
3019 & (unsigned long)0x7e000000);
3020 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3021
3022 r_type = R_FRV_GOTTLSOFF12;
3023 howto = elf32_frv_howto_table + r_type;
3024 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3025 }
3026
3027 break;
3028
3029 case R_FRV_GOTTLSDESCHI:
3030 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3031
3032 /* Is this a sethi instruction? */
3033 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3034 {
3035 info->callbacks->einfo
3036 (_("%H: R_FRV_GOTTLSDESCHI"
3037 " not applied to a sethi instruction\n"),
3038 input_bfd, input_section, rel->r_offset);
3039 return FALSE;
3040 }
3041
3042 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3043 relocation + rel->r_addend)
3044 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3045 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3046 {
3047 /* Replace sethi with a nop. Preserve the packing bit. */
3048 insn &= (unsigned long)0x80000000;
3049 insn |= (unsigned long)0x00880000;
3050 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3051
3052 /* Nothing to relocate. */
3053 continue;
3054 }
3055
3056 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3057 {
3058 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3059 r_type = R_FRV_GOTTLSOFFHI;
3060 howto = elf32_frv_howto_table + r_type;
3061 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3062 }
3063
3064 break;
3065
3066 case R_FRV_GOTTLSDESCLO:
3067 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3068
3069 /* Is this a setlo or setlos instruction? */
3070 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3071 {
3072 info->callbacks->einfo
3073 (_("%H: R_FRV_GOTTLSDESCLO"
3074 " not applied to a setlo or setlos instruction\n"),
3075 input_bfd, input_section, rel->r_offset);
3076 return FALSE;
3077 }
3078
3079 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3080 relocation + rel->r_addend)
3081 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3082 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3083 {
3084 /* Replace setlo/setlos with a nop. Preserve the
3085 packing bit. */
3086 insn &= (unsigned long)0x80000000;
3087 insn |= (unsigned long)0x00880000;
3088 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3089
3090 /* Nothing to relocate. */
3091 continue;
3092 }
3093
3094 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3095 {
3096 /* If the corresponding sethi (if it exists) decayed
3097 to a nop, make sure this becomes (or already is) a
3098 setlos, not setlo. */
3099 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3100 {
3101 insn |= (unsigned long)0x00080000;
3102 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3103 }
3104
3105 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3106 r_type = R_FRV_GOTTLSOFFLO;
3107 howto = elf32_frv_howto_table + r_type;
3108 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3109 }
3110
3111 break;
3112
3113 case R_FRV_TLSDESC_RELAX:
3114 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3115
3116 /* Is this an ldd instruction? */
3117 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3118 {
3119 info->callbacks->einfo
3120 (_("%H: R_FRV_TLSDESC_RELAX"
3121 " not applied to an ldd instruction\n"),
3122 input_bfd, input_section, rel->r_offset);
3123 return FALSE;
3124 }
3125
3126 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3127 relocation + rel->r_addend)
3128 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3129 info))
3130 {
3131 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3132 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3133 Preserve the packing bit. */
3134 insn = (insn & (unsigned long)0x80000000)
3135 | ((insn + (unsigned long)0x02000000)
3136 & (unsigned long)0x7e000000);
3137 insn |= (unsigned long)0x00fc0000;
3138 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3139
3140 r_type = R_FRV_TLSMOFFLO;
3141 howto = elf32_frv_howto_table + r_type;
3142 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3143 }
3144
3145 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3146 relocation + rel->r_addend))
3147 {
3148 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3149 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3150 Preserve the packing bit. */
3151 insn = (insn & (unsigned long)0x80000000)
3152 | ((insn + (unsigned long)0x02000000)
3153 & (unsigned long)0x7e000000);
3154 insn |= (unsigned long)0x00f80000;
3155 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3156
3157 r_type = R_FRV_TLSMOFFHI;
3158 howto = elf32_frv_howto_table + r_type;
3159 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3160 }
3161
3162 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3163 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3164 {
3165 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3166 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3167 Preserve the packing bit. */
3168 insn = (insn & (unsigned long)0x8003f000)
3169 | (unsigned long)0x00c80000
3170 | ((insn + (unsigned long)0x02000000)
3171 & (unsigned long)0x7e000000);
3172 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3173
3174 r_type = R_FRV_GOTTLSOFF12;
3175 howto = elf32_frv_howto_table + r_type;
3176 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3177 }
3178
3179 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3180 {
3181 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3182 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3183 Preserve the packing bit. */
3184 insn = (insn & (unsigned long)0x81ffffbf)
3185 | ((insn + (unsigned long)0x02000000)
3186 & (unsigned long)0x7e000000);
3187 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3188
3189 /* #tlsoff(symbol+offset) is just a relaxation
3190 annotation, so there's nothing left to
3191 relocate. */
3192 continue;
3193 }
3194
3195 break;
3196
3197 case R_FRV_GETTLSOFF_RELAX:
3198 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3199
3200 /* Is this a calll or callil instruction? */
3201 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3202 {
3203 info->callbacks->einfo
3204 (_("%H: R_FRV_GETTLSOFF_RELAX"
3205 " not applied to a calll instruction\n"),
3206 input_bfd, input_section, rel->r_offset);
3207 return FALSE;
3208 }
3209
3210 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3211 relocation + rel->r_addend)
3212 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3213 info))
3214 {
3215 /* Replace calll with a nop. Preserve the packing bit. */
3216 insn &= (unsigned long)0x80000000;
3217 insn |= (unsigned long)0x00880000;
3218 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3219
3220 /* Nothing to relocate. */
3221 continue;
3222 }
3223
3224 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3225 relocation + rel->r_addend))
3226 {
3227 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3228 Preserve the packing bit. */
3229 insn &= (unsigned long)0x80000000;
3230 insn |= (unsigned long)0x12f40000;
3231 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3232
3233 r_type = R_FRV_TLSMOFFLO;
3234 howto = elf32_frv_howto_table + r_type;
3235 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3236 }
3237
3238 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3239 {
3240 /* Replace calll with a nop. Preserve the packing bit. */
3241 insn &= (unsigned long)0x80000000;
3242 insn |= (unsigned long)0x00880000;
3243 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3244
3245 /* Nothing to relocate. */
3246 continue;
3247 }
3248
3249 break;
3250
3251 case R_FRV_GOTTLSOFF12:
3252 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3253
3254 /* Is this an ldi instruction? */
3255 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3256 {
3257 info->callbacks->einfo
3258 (_("%H: R_FRV_GOTTLSOFF12"
3259 " not applied to an ldi instruction\n"),
3260 input_bfd, input_section, rel->r_offset);
3261 return FALSE;
3262 }
3263
3264 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3265 relocation + rel->r_addend))
3266 {
3267 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3268 with setlos #tlsmofflo(symbol+offset), grC.
3269 Preserve the packing bit. */
3270 insn &= (unsigned long)0xfe000000;
3271 insn |= (unsigned long)0x00fc0000;
3272 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3273
3274 r_type = R_FRV_TLSMOFFLO;
3275 howto = elf32_frv_howto_table + r_type;
3276 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3277 }
3278
3279 break;
3280
3281 case R_FRV_GOTTLSOFFHI:
3282 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3283
3284 /* Is this a sethi instruction? */
3285 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3286 {
3287 info->callbacks->einfo
3288 (_("%H: R_FRV_GOTTLSOFFHI"
3289 " not applied to a sethi instruction\n"),
3290 input_bfd, input_section, rel->r_offset);
3291 return FALSE;
3292 }
3293
3294 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3295 relocation + rel->r_addend)
3296 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3297 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3298 {
3299 /* Replace sethi with a nop. Preserve the packing bit. */
3300 insn &= (unsigned long)0x80000000;
3301 insn |= (unsigned long)0x00880000;
3302 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3303
3304 /* Nothing to relocate. */
3305 continue;
3306 }
3307
3308 break;
3309
3310 case R_FRV_GOTTLSOFFLO:
3311 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3312
3313 /* Is this a setlo or setlos instruction? */
3314 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3315 {
3316 info->callbacks->einfo
3317 (_("%H: R_FRV_GOTTLSOFFLO"
3318 " not applied to a setlo or setlos instruction\n"),
3319 input_bfd, input_section, rel->r_offset);
3320 return FALSE;
3321 }
3322
3323 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3324 relocation + rel->r_addend)
3325 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3326 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3327 {
3328 /* Replace setlo/setlos with a nop. Preserve the
3329 packing bit. */
3330 insn &= (unsigned long)0x80000000;
3331 insn |= (unsigned long)0x00880000;
3332 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3333
3334 /* Nothing to relocate. */
3335 continue;
3336 }
3337
3338 break;
3339
3340 case R_FRV_TLSOFF_RELAX:
3341 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3342
3343 /* Is this an ld instruction? */
3344 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3345 {
3346 info->callbacks->einfo
3347 (_("%H: R_FRV_TLSOFF_RELAX"
3348 " not applied to an ld instruction\n"),
3349 input_bfd, input_section, rel->r_offset);
3350 return FALSE;
3351 }
3352
3353 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3354 relocation + rel->r_addend))
3355 {
3356 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3357 with setlos #tlsmofflo(symbol+offset), grC.
3358 Preserve the packing bit. */
3359 insn &= (unsigned long)0xfe000000;
3360 insn |= (unsigned long)0x00fc0000;
3361 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3362
3363 r_type = R_FRV_TLSMOFFLO;
3364 howto = elf32_frv_howto_table + r_type;
3365 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3366 }
3367
3368 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3369 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3370 {
3371 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3372 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3373 Preserve the packing bit. */
3374 insn = (insn & (unsigned long)0xfe03f000)
3375 | (unsigned long)0x00c80000;
3376 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3377
3378 r_type = R_FRV_GOTTLSOFF12;
3379 howto = elf32_frv_howto_table + r_type;
3380 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3381 }
3382
3383 break;
3384
3385 case R_FRV_TLSMOFFHI:
3386 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3387
3388 /* Is this a sethi instruction? */
3389 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3390 {
3391 info->callbacks->einfo
3392 (_("%H: R_FRV_TLSMOFFHI"
3393 " not applied to a sethi instruction\n"),
3394 input_bfd, input_section, rel->r_offset);
3395 return FALSE;
3396 }
3397
3398 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3399 info))
3400 {
3401 /* Replace sethi with a nop. Preserve the packing bit. */
3402 insn &= (unsigned long)0x80000000;
3403 insn |= (unsigned long)0x00880000;
3404 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3405
3406 /* Nothing to relocate. */
3407 continue;
3408 }
3409
3410 break;
3411
3412 case R_FRV_TLSMOFFLO:
3413 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3414
3415 /* Is this a setlo or setlos instruction? */
3416 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3417 {
3418 info->callbacks->einfo
3419 (_("R_FRV_TLSMOFFLO"
3420 " not applied to a setlo or setlos instruction\n"),
3421 input_bfd, input_section, rel->r_offset);
3422 return FALSE;
3423 }
3424
3425 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3426 info))
3427 /* If the corresponding sethi (if it exists) decayed
3428 to a nop, make sure this becomes (or already is) a
3429 setlos, not setlo. */
3430 {
3431 insn |= (unsigned long)0x00080000;
3432 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3433 }
3434
3435 break;
3436
3437 /*
3438 There's nothing to relax in these:
3439 R_FRV_TLSDESC_VALUE
3440 R_FRV_TLSOFF
3441 R_FRV_TLSMOFF12
3442 R_FRV_TLSMOFFHI
3443 R_FRV_TLSMOFFLO
3444 R_FRV_TLSMOFF
3445 */
3446
3447 default:
3448 break;
3449 }
3450
3451 switch (r_type)
3452 {
3453 case R_FRV_LABEL24:
3454 check_segment[0] = isec_segment;
3455 if (! IS_FDPIC (output_bfd))
3456 check_segment[1] = isec_segment;
3457 else if (picrel->plt)
3458 {
3459 relocation = frvfdpic_plt_section (info)->output_section->vma
3460 + frvfdpic_plt_section (info)->output_offset
3461 + picrel->plt_entry;
3462 check_segment[1] = plt_segment;
3463 }
3464 /* We don't want to warn on calls to undefined weak symbols,
3465 as calls to them must be protected by non-NULL tests
3466 anyway, and unprotected calls would invoke undefined
3467 behavior. */
3468 else if (picrel->symndx == -1
3469 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3470 check_segment[1] = check_segment[0];
3471 else
3472 check_segment[1] = sec
3473 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3474 : (unsigned)-1;
3475 break;
3476
3477 case R_FRV_GOT12:
3478 case R_FRV_GOTHI:
3479 case R_FRV_GOTLO:
3480 relocation = picrel->got_entry;
3481 check_segment[0] = check_segment[1] = got_segment;
3482 break;
3483
3484 case R_FRV_FUNCDESC_GOT12:
3485 case R_FRV_FUNCDESC_GOTHI:
3486 case R_FRV_FUNCDESC_GOTLO:
3487 relocation = picrel->fdgot_entry;
3488 check_segment[0] = check_segment[1] = got_segment;
3489 break;
3490
3491 case R_FRV_GOTOFFHI:
3492 case R_FRV_GOTOFF12:
3493 case R_FRV_GOTOFFLO:
3494 relocation -= frvfdpic_got_section (info)->output_section->vma
3495 + frvfdpic_got_section (info)->output_offset
3496 + frvfdpic_got_initial_offset (info);
3497 check_segment[0] = got_segment;
3498 check_segment[1] = sec
3499 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3500 : (unsigned)-1;
3501 break;
3502
3503 case R_FRV_FUNCDESC_GOTOFF12:
3504 case R_FRV_FUNCDESC_GOTOFFHI:
3505 case R_FRV_FUNCDESC_GOTOFFLO:
3506 relocation = picrel->fd_entry;
3507 check_segment[0] = check_segment[1] = got_segment;
3508 break;
3509
3510 case R_FRV_FUNCDESC:
3511 {
3512 int dynindx;
3513 bfd_vma addend = rel->r_addend;
3514
3515 if (! (h && h->root.type == bfd_link_hash_undefweak
3516 && FRVFDPIC_SYM_LOCAL (info, h)))
3517 {
3518 /* If the symbol is dynamic and there may be dynamic
3519 symbol resolution because we are or are linked with a
3520 shared library, emit a FUNCDESC relocation such that
3521 the dynamic linker will allocate the function
3522 descriptor. If the symbol needs a non-local function
3523 descriptor but binds locally (e.g., its visibility is
3524 protected, emit a dynamic relocation decayed to
3525 section+offset. */
3526 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3527 && FRVFDPIC_SYM_LOCAL (info, h)
3528 && !bfd_link_pde (info))
3529 {
3530 dynindx = elf_section_data (h->root.u.def.section
3531 ->output_section)->dynindx;
3532 addend += h->root.u.def.section->output_offset
3533 + h->root.u.def.value;
3534 }
3535 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3536 {
3537 if (addend)
3538 {
3539 info->callbacks->einfo
3540 (_("%H: R_FRV_FUNCDESC references dynamic symbol"
3541 " with nonzero addend\n"),
3542 input_bfd, input_section, rel->r_offset);
3543 return FALSE;
3544 }
3545 dynindx = h->dynindx;
3546 }
3547 else
3548 {
3549 /* Otherwise, we know we have a private function
3550 descriptor, so reference it directly. */
3551 BFD_ASSERT (picrel->privfd);
3552 r_type = R_FRV_32;
3553 dynindx = elf_section_data (frvfdpic_got_section (info)
3554 ->output_section)->dynindx;
3555 addend = frvfdpic_got_section (info)->output_offset
3556 + frvfdpic_got_initial_offset (info)
3557 + picrel->fd_entry;
3558 }
3559
3560 /* If there is room for dynamic symbol resolution, emit
3561 the dynamic relocation. However, if we're linking an
3562 executable at a fixed location, we won't have emitted a
3563 dynamic symbol entry for the got section, so idx will
3564 be zero, which means we can and should compute the
3565 address of the private descriptor ourselves. */
3566 if (bfd_link_pde (info)
3567 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3568 {
3569 addend += frvfdpic_got_section (info)->output_section->vma;
3570 if ((bfd_get_section_flags (output_bfd,
3571 input_section->output_section)
3572 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3573 {
3574 bfd_vma offset;
3575
3576 if (_frvfdpic_osec_readonly_p (output_bfd,
3577 input_section
3578 ->output_section))
3579 {
3580 info->callbacks->einfo
3581 (_("%H: cannot emit fixups"
3582 " in read-only section\n"),
3583 input_bfd, input_section, rel->r_offset);
3584 return FALSE;
3585 }
3586
3587 offset = _bfd_elf_section_offset
3588 (output_bfd, info,
3589 input_section, rel->r_offset);
3590
3591 if (offset != (bfd_vma)-1)
3592 _frvfdpic_add_rofixup (output_bfd,
3593 frvfdpic_gotfixup_section
3594 (info),
3595 offset + input_section
3596 ->output_section->vma
3597 + input_section->output_offset,
3598 picrel);
3599 }
3600 }
3601 else if ((bfd_get_section_flags (output_bfd,
3602 input_section->output_section)
3603 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3604 {
3605 bfd_vma offset;
3606
3607 if (_frvfdpic_osec_readonly_p (output_bfd,
3608 input_section
3609 ->output_section))
3610 {
3611 info->callbacks->einfo
3612 (_("%H: cannot emit dynamic relocations"
3613 " in read-only section\n"),
3614 input_bfd, input_section, rel->r_offset);
3615 return FALSE;
3616 }
3617
3618 offset = _bfd_elf_section_offset
3619 (output_bfd, info,
3620 input_section, rel->r_offset);
3621
3622 if (offset != (bfd_vma)-1)
3623 _frvfdpic_add_dyn_reloc (output_bfd,
3624 frvfdpic_gotrel_section (info),
3625 offset + input_section
3626 ->output_section->vma
3627 + input_section->output_offset,
3628 r_type, dynindx, addend, picrel);
3629 }
3630 else
3631 addend += frvfdpic_got_section (info)->output_section->vma;
3632 }
3633
3634 /* We want the addend in-place because dynamic
3635 relocations are REL. Setting relocation to it should
3636 arrange for it to be installed. */
3637 relocation = addend - rel->r_addend;
3638 }
3639 check_segment[0] = check_segment[1] = got_segment;
3640 break;
3641
3642 case R_FRV_32:
3643 if (! IS_FDPIC (output_bfd))
3644 {
3645 check_segment[0] = check_segment[1] = -1;
3646 break;
3647 }
3648 /* Fall through. */
3649 case R_FRV_FUNCDESC_VALUE:
3650 {
3651 int dynindx;
3652 bfd_vma addend = rel->r_addend;
3653
3654 /* If the symbol is dynamic but binds locally, use
3655 section+offset. */
3656 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3657 {
3658 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3659 {
3660 info->callbacks->einfo
3661 (_("%H: R_FRV_FUNCDESC_VALUE"
3662 " references dynamic symbol with nonzero addend\n"),
3663 input_bfd, input_section, rel->r_offset);
3664 return FALSE;
3665 }
3666 dynindx = h->dynindx;
3667 }
3668 else
3669 {
3670 if (h)
3671 addend += h->root.u.def.value;
3672 else
3673 addend += sym->st_value;
3674 if (osec)
3675 addend += osec->output_offset;
3676 if (osec && osec->output_section
3677 && ! bfd_is_abs_section (osec->output_section)
3678 && ! bfd_is_und_section (osec->output_section))
3679 dynindx = elf_section_data (osec->output_section)->dynindx;
3680 else
3681 dynindx = 0;
3682 }
3683
3684 /* If we're linking an executable at a fixed address, we
3685 can omit the dynamic relocation as long as the symbol
3686 is defined in the current link unit (which is implied
3687 by its output section not being NULL). */
3688 if (bfd_link_pde (info)
3689 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3690 {
3691 if (osec)
3692 addend += osec->output_section->vma;
3693 if (IS_FDPIC (input_bfd)
3694 && (bfd_get_section_flags (output_bfd,
3695 input_section->output_section)
3696 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3697 {
3698 if (_frvfdpic_osec_readonly_p (output_bfd,
3699 input_section
3700 ->output_section))
3701 {
3702 info->callbacks->einfo
3703 (_("%H: cannot emit fixups in read-only section\n"),
3704 input_bfd, input_section, rel->r_offset);
3705 return FALSE;
3706 }
3707 if (!h || h->root.type != bfd_link_hash_undefweak)
3708 {
3709 bfd_vma offset = _bfd_elf_section_offset
3710 (output_bfd, info,
3711 input_section, rel->r_offset);
3712
3713 if (offset != (bfd_vma)-1)
3714 {
3715 _frvfdpic_add_rofixup (output_bfd,
3716 frvfdpic_gotfixup_section
3717 (info),
3718 offset + input_section
3719 ->output_section->vma
3720 + input_section->output_offset,
3721 picrel);
3722 if (r_type == R_FRV_FUNCDESC_VALUE)
3723 _frvfdpic_add_rofixup
3724 (output_bfd,
3725 frvfdpic_gotfixup_section (info),
3726 offset
3727 + input_section->output_section->vma
3728 + input_section->output_offset + 4, picrel);
3729 }
3730 }
3731 }
3732 }
3733 else
3734 {
3735 if ((bfd_get_section_flags (output_bfd,
3736 input_section->output_section)
3737 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3738 {
3739 bfd_vma offset;
3740
3741 if (_frvfdpic_osec_readonly_p (output_bfd,
3742 input_section
3743 ->output_section))
3744 {
3745 info->callbacks->einfo
3746 (_("%H: cannot emit dynamic relocations"
3747 " in read-only section\n"),
3748 input_bfd, input_section, rel->r_offset);
3749 return FALSE;
3750 }
3751
3752 offset = _bfd_elf_section_offset
3753 (output_bfd, info,
3754 input_section, rel->r_offset);
3755
3756 if (offset != (bfd_vma)-1)
3757 _frvfdpic_add_dyn_reloc (output_bfd,
3758 frvfdpic_gotrel_section (info),
3759 offset + input_section
3760 ->output_section->vma
3761 + input_section->output_offset,
3762 r_type, dynindx, addend, picrel);
3763 }
3764 else if (osec)
3765 addend += osec->output_section->vma;
3766 /* We want the addend in-place because dynamic
3767 relocations are REL. Setting relocation to it
3768 should arrange for it to be installed. */
3769 relocation = addend - rel->r_addend;
3770 }
3771
3772 if (r_type == R_FRV_FUNCDESC_VALUE)
3773 {
3774 /* If we've omitted the dynamic relocation, just emit
3775 the fixed addresses of the symbol and of the local
3776 GOT base offset. */
3777 if (bfd_link_pde (info)
3778 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3779 bfd_put_32 (output_bfd,
3780 frvfdpic_got_section (info)->output_section->vma
3781 + frvfdpic_got_section (info)->output_offset
3782 + frvfdpic_got_initial_offset (info),
3783 contents + rel->r_offset + 4);
3784 else
3785 /* A function descriptor used for lazy or local
3786 resolving is initialized such that its high word
3787 contains the output section index in which the
3788 PLT entries are located, and the low word
3789 contains the offset of the lazy PLT entry entry
3790 point into that section. */
3791 bfd_put_32 (output_bfd,
3792 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3793 ? 0
3794 : _frvfdpic_osec_to_segment (output_bfd,
3795 sec
3796 ->output_section),
3797 contents + rel->r_offset + 4);
3798 }
3799 }
3800 check_segment[0] = check_segment[1] = got_segment;
3801 break;
3802
3803 case R_FRV_GPREL12:
3804 case R_FRV_GPRELU12:
3805 case R_FRV_GPREL32:
3806 case R_FRV_GPRELHI:
3807 case R_FRV_GPRELLO:
3808 check_segment[0] = gprel_segment;
3809 check_segment[1] = sec
3810 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3811 : (unsigned)-1;
3812 break;
3813
3814 case R_FRV_GETTLSOFF:
3815 relocation = frvfdpic_plt_section (info)->output_section->vma
3816 + frvfdpic_plt_section (info)->output_offset
3817 + picrel->tlsplt_entry;
3818 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3819 && picrel->tlsdesc_entry);
3820 check_segment[0] = isec_segment;
3821 check_segment[1] = plt_segment;
3822 break;
3823
3824 case R_FRV_GOTTLSDESC12:
3825 case R_FRV_GOTTLSDESCHI:
3826 case R_FRV_GOTTLSDESCLO:
3827 BFD_ASSERT (picrel->tlsdesc_entry);
3828 relocation = picrel->tlsdesc_entry;
3829 check_segment[0] = tls_segment;
3830 check_segment[1] = sec
3831 && ! bfd_is_abs_section (sec)
3832 && ! bfd_is_und_section (sec)
3833 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3834 : tls_segment;
3835 break;
3836
3837 case R_FRV_TLSMOFF12:
3838 case R_FRV_TLSMOFFHI:
3839 case R_FRV_TLSMOFFLO:
3840 case R_FRV_TLSMOFF:
3841 check_segment[0] = tls_segment;
3842 if (! sec)
3843 check_segment[1] = -1;
3844 else if (bfd_is_abs_section (sec)
3845 || bfd_is_und_section (sec))
3846 {
3847 relocation = 0;
3848 check_segment[1] = tls_segment;
3849 }
3850 else if (sec->output_section)
3851 {
3852 relocation -= tls_biased_base (info);
3853 check_segment[1] =
3854 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3855 }
3856 else
3857 check_segment[1] = -1;
3858 break;
3859
3860 case R_FRV_GOTTLSOFF12:
3861 case R_FRV_GOTTLSOFFHI:
3862 case R_FRV_GOTTLSOFFLO:
3863 BFD_ASSERT (picrel->tlsoff_entry);
3864 relocation = picrel->tlsoff_entry;
3865 check_segment[0] = tls_segment;
3866 check_segment[1] = sec
3867 && ! bfd_is_abs_section (sec)
3868 && ! bfd_is_und_section (sec)
3869 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3870 : tls_segment;
3871 break;
3872
3873 case R_FRV_TLSDESC_VALUE:
3874 case R_FRV_TLSOFF:
3875 /* These shouldn't be present in input object files. */
3876 check_segment[0] = check_segment[1] = isec_segment;
3877 break;
3878
3879 case R_FRV_TLSDESC_RELAX:
3880 case R_FRV_GETTLSOFF_RELAX:
3881 case R_FRV_TLSOFF_RELAX:
3882 /* These are just annotations for relaxation, nothing to do
3883 here. */
3884 continue;
3885
3886 default:
3887 check_segment[0] = isec_segment;
3888 check_segment[1] = sec
3889 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3890 : (unsigned)-1;
3891 break;
3892 }
3893
3894 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3895 {
3896 /* If you take this out, remove the #error from fdpic-static-6.d
3897 in the ld testsuite. */
3898 /* This helps catch problems in GCC while we can't do more
3899 than static linking. The idea is to test whether the
3900 input file basename is crt0.o only once. */
3901 if (silence_segment_error == 1)
3902 silence_segment_error =
3903 (strlen (input_bfd->filename) == 6
3904 && filename_cmp (input_bfd->filename, "crt0.o") == 0)
3905 || (strlen (input_bfd->filename) > 6
3906 && filename_cmp (input_bfd->filename
3907 + strlen (input_bfd->filename) - 7,
3908 "/crt0.o") == 0)
3909 ? -1 : 0;
3910 if (!silence_segment_error
3911 /* We don't want duplicate errors for undefined
3912 symbols. */
3913 && !(picrel && picrel->symndx == -1
3914 && picrel->d.h->root.type == bfd_link_hash_undefined))
3915 {
3916 info->callbacks->einfo
3917 /* xgettext:c-format */
3918 (_("%H: reloc against `%s' references a different segment\n"),
3919 input_bfd, input_section, rel->r_offset, name);
3920 }
3921 if (!silence_segment_error && bfd_link_pic (info))
3922 return FALSE;
3923 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3924 }
3925
3926 switch (r_type)
3927 {
3928 case R_FRV_GOTOFFHI:
3929 case R_FRV_TLSMOFFHI:
3930 /* We need the addend to be applied before we shift the
3931 value right. */
3932 relocation += rel->r_addend;
3933 /* Fall through. */
3934 case R_FRV_GOTHI:
3935 case R_FRV_FUNCDESC_GOTHI:
3936 case R_FRV_FUNCDESC_GOTOFFHI:
3937 case R_FRV_GOTTLSOFFHI:
3938 case R_FRV_GOTTLSDESCHI:
3939 relocation >>= 16;
3940 /* Fall through. */
3941
3942 case R_FRV_GOTLO:
3943 case R_FRV_FUNCDESC_GOTLO:
3944 case R_FRV_GOTOFFLO:
3945 case R_FRV_FUNCDESC_GOTOFFLO:
3946 case R_FRV_GOTTLSOFFLO:
3947 case R_FRV_GOTTLSDESCLO:
3948 case R_FRV_TLSMOFFLO:
3949 relocation &= 0xffff;
3950 break;
3951
3952 default:
3953 break;
3954 }
3955
3956 switch (r_type)
3957 {
3958 case R_FRV_LABEL24:
3959 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3960 break;
3961 /* Fall through. */
3962
3963 /* When referencing a GOT entry, a function descriptor or a
3964 PLT, we don't want the addend to apply to the reference,
3965 but rather to the referenced symbol. The actual entry
3966 will have already been created taking the addend into
3967 account, so cancel it out here. */
3968 case R_FRV_GOT12:
3969 case R_FRV_GOTHI:
3970 case R_FRV_GOTLO:
3971 case R_FRV_FUNCDESC_GOT12:
3972 case R_FRV_FUNCDESC_GOTHI:
3973 case R_FRV_FUNCDESC_GOTLO:
3974 case R_FRV_FUNCDESC_GOTOFF12:
3975 case R_FRV_FUNCDESC_GOTOFFHI:
3976 case R_FRV_FUNCDESC_GOTOFFLO:
3977 case R_FRV_GETTLSOFF:
3978 case R_FRV_GOTTLSDESC12:
3979 case R_FRV_GOTTLSDESCHI:
3980 case R_FRV_GOTTLSDESCLO:
3981 case R_FRV_GOTTLSOFF12:
3982 case R_FRV_GOTTLSOFFHI:
3983 case R_FRV_GOTTLSOFFLO:
3984 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
3985 here, since we do want to apply the addend to the others.
3986 Note that we've applied the addend to GOTOFFHI before we
3987 shifted it right. */
3988 case R_FRV_GOTOFFHI:
3989 case R_FRV_TLSMOFFHI:
3990 relocation -= rel->r_addend;
3991 break;
3992
3993 default:
3994 break;
3995 }
3996
3997 if (r_type == R_FRV_HI16)
3998 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
3999
4000 else if (r_type == R_FRV_LO16)
4001 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4002
4003 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4004 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4005 contents, relocation);
4006
4007 else if (r_type == R_FRV_GPREL12)
4008 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4009 contents, relocation);
4010
4011 else if (r_type == R_FRV_GPRELU12)
4012 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4013 contents, relocation);
4014
4015 else if (r_type == R_FRV_GPRELLO)
4016 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4017 contents, relocation);
4018
4019 else if (r_type == R_FRV_GPRELHI)
4020 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4021 contents, relocation);
4022
4023 else if (r_type == R_FRV_TLSOFF
4024 || r_type == R_FRV_TLSDESC_VALUE)
4025 r = bfd_reloc_notsupported;
4026
4027 else
4028 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4029 rel, relocation);
4030
4031 if (r != bfd_reloc_ok)
4032 {
4033 const char * msg = (const char *) NULL;
4034
4035 switch (r)
4036 {
4037 case bfd_reloc_overflow:
4038 (*info->callbacks->reloc_overflow)
4039 (info, (h ? &h->root : NULL), name, howto->name,
4040 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4041 break;
4042
4043 case bfd_reloc_undefined:
4044 (*info->callbacks->undefined_symbol)
4045 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4046 break;
4047
4048 case bfd_reloc_outofrange:
4049 msg = _("internal error: out of range error");
4050 break;
4051
4052 case bfd_reloc_notsupported:
4053 msg = _("internal error: unsupported relocation error");
4054 break;
4055
4056 case bfd_reloc_dangerous:
4057 msg = _("internal error: dangerous relocation");
4058 break;
4059
4060 default:
4061 msg = _("internal error: unknown error");
4062 break;
4063 }
4064
4065 if (msg)
4066 {
4067 info->callbacks->einfo
4068 /* xgettext:c-format */
4069 (_("%H: reloc against `%s': %s\n"),
4070 input_bfd, input_section, rel->r_offset, name, msg);
4071 return FALSE;
4072 }
4073 }
4074 }
4075
4076 return TRUE;
4077 }
4078 \f
4079 /* Return the section that should be marked against GC for a given
4080 relocation. */
4081
4082 static asection *
4083 elf32_frv_gc_mark_hook (asection *sec,
4084 struct bfd_link_info *info,
4085 Elf_Internal_Rela *rel,
4086 struct elf_link_hash_entry *h,
4087 Elf_Internal_Sym *sym)
4088 {
4089 if (h != NULL)
4090 switch (ELF32_R_TYPE (rel->r_info))
4091 {
4092 case R_FRV_GNU_VTINHERIT:
4093 case R_FRV_GNU_VTENTRY:
4094 return NULL;
4095 }
4096
4097 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4098 }
4099 \f
4100 /* Hook called by the linker routine which adds symbols from an object
4101 file. We use it to put .comm items in .scomm, and not .comm. */
4102
4103 static bfd_boolean
4104 elf32_frv_add_symbol_hook (bfd *abfd,
4105 struct bfd_link_info *info,
4106 Elf_Internal_Sym *sym,
4107 const char **namep ATTRIBUTE_UNUSED,
4108 flagword *flagsp ATTRIBUTE_UNUSED,
4109 asection **secp,
4110 bfd_vma *valp)
4111 {
4112 if (sym->st_shndx == SHN_COMMON
4113 && !bfd_link_relocatable (info)
4114 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4115 {
4116 /* Common symbols less than or equal to -G nn bytes are
4117 automatically put into .sbss. */
4118
4119 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4120
4121 if (scomm == NULL)
4122 {
4123 scomm = bfd_make_section_with_flags (abfd, ".scommon",
4124 (SEC_ALLOC
4125 | SEC_IS_COMMON
4126 | SEC_LINKER_CREATED));
4127 if (scomm == NULL)
4128 return FALSE;
4129 }
4130
4131 *secp = scomm;
4132 *valp = sym->st_size;
4133 }
4134
4135 return TRUE;
4136 }
4137
4138 /* We need dynamic symbols for every section, since segments can
4139 relocate independently. */
4140 static bfd_boolean
4141 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4142 struct bfd_link_info *info
4143 ATTRIBUTE_UNUSED,
4144 asection *p ATTRIBUTE_UNUSED)
4145 {
4146 switch (elf_section_data (p)->this_hdr.sh_type)
4147 {
4148 case SHT_PROGBITS:
4149 case SHT_NOBITS:
4150 /* If sh_type is yet undecided, assume it could be
4151 SHT_PROGBITS/SHT_NOBITS. */
4152 case SHT_NULL:
4153 return FALSE;
4154
4155 /* There shouldn't be section relative relocations
4156 against any other section. */
4157 default:
4158 return TRUE;
4159 }
4160 }
4161
4162 /* Create a .got section, as well as its additional info field. This
4163 is almost entirely copied from
4164 elflink.c:_bfd_elf_create_got_section(). */
4165
4166 static bfd_boolean
4167 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4168 {
4169 flagword flags, pltflags;
4170 asection *s;
4171 struct elf_link_hash_entry *h;
4172 struct bfd_link_hash_entry *bh;
4173 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4174 int ptralign;
4175 int offset;
4176
4177 /* This function may be called more than once. */
4178 s = bfd_get_linker_section (abfd, ".got");
4179 if (s != NULL)
4180 return TRUE;
4181
4182 /* Machine specific: although pointers are 32-bits wide, we want the
4183 GOT to be aligned to a 64-bit boundary, such that function
4184 descriptors in it can be accessed with 64-bit loads and
4185 stores. */
4186 ptralign = 3;
4187
4188 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4189 | SEC_LINKER_CREATED);
4190 pltflags = flags;
4191
4192 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
4193 if (s == NULL
4194 || !bfd_set_section_alignment (abfd, s, ptralign))
4195 return FALSE;
4196
4197 if (bed->want_got_plt)
4198 {
4199 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
4200 if (s == NULL
4201 || !bfd_set_section_alignment (abfd, s, ptralign))
4202 return FALSE;
4203 }
4204
4205 if (bed->want_got_sym)
4206 {
4207 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4208 (or .got.plt) section. We don't do this in the linker script
4209 because we don't want to define the symbol if we are not creating
4210 a global offset table. */
4211 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4212 elf_hash_table (info)->hgot = h;
4213 if (h == NULL)
4214 return FALSE;
4215
4216 /* Machine-specific: we want the symbol for executables as
4217 well. */
4218 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4219 return FALSE;
4220 }
4221
4222 /* The first bit of the global offset table is the header. */
4223 s->size += bed->got_header_size;
4224
4225 /* This is the machine-specific part. Create and initialize section
4226 data for the got. */
4227 if (IS_FDPIC (abfd))
4228 {
4229 frvfdpic_got_section (info) = s;
4230 frvfdpic_relocs_info (info) = htab_try_create (1,
4231 frvfdpic_relocs_info_hash,
4232 frvfdpic_relocs_info_eq,
4233 (htab_del) NULL);
4234 if (! frvfdpic_relocs_info (info))
4235 return FALSE;
4236
4237 s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
4238 (flags | SEC_READONLY));
4239 if (s == NULL
4240 || ! bfd_set_section_alignment (abfd, s, 2))
4241 return FALSE;
4242
4243 frvfdpic_gotrel_section (info) = s;
4244
4245 /* Machine-specific. */
4246 s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
4247 (flags | SEC_READONLY));
4248 if (s == NULL
4249 || ! bfd_set_section_alignment (abfd, s, 2))
4250 return FALSE;
4251
4252 frvfdpic_gotfixup_section (info) = s;
4253 offset = -2048;
4254 flags = BSF_GLOBAL;
4255 }
4256 else
4257 {
4258 offset = 2048;
4259 flags = BSF_GLOBAL | BSF_WEAK;
4260 }
4261
4262 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4263 turns out that we're linking with a different linker script, the
4264 linker script will override it. */
4265 bh = NULL;
4266 if (!(_bfd_generic_link_add_one_symbol
4267 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4268 bed->collect, &bh)))
4269 return FALSE;
4270 h = (struct elf_link_hash_entry *) bh;
4271 h->def_regular = 1;
4272 h->type = STT_OBJECT;
4273 /* h->other = STV_HIDDEN; */ /* Should we? */
4274
4275 /* Machine-specific: we want the symbol for executables as well. */
4276 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4277 return FALSE;
4278
4279 if (!IS_FDPIC (abfd))
4280 return TRUE;
4281
4282 /* FDPIC supports Thread Local Storage, and this may require a
4283 procedure linkage table for TLS PLT entries. */
4284
4285 /* This is mostly copied from
4286 elflink.c:_bfd_elf_create_dynamic_sections(). */
4287
4288 flags = pltflags;
4289 pltflags |= SEC_CODE;
4290 if (bed->plt_not_loaded)
4291 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4292 if (bed->plt_readonly)
4293 pltflags |= SEC_READONLY;
4294
4295 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
4296 if (s == NULL
4297 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4298 return FALSE;
4299 /* FRV-specific: remember it. */
4300 frvfdpic_plt_section (info) = s;
4301
4302 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4303 .plt section. */
4304 if (bed->want_plt_sym)
4305 {
4306 h = _bfd_elf_define_linkage_sym (abfd, info, s,
4307 "_PROCEDURE_LINKAGE_TABLE_");
4308 elf_hash_table (info)->hplt = h;
4309 if (h == NULL)
4310 return FALSE;
4311 }
4312
4313 /* FRV-specific: we want rel relocations for the plt. */
4314 s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
4315 flags | SEC_READONLY);
4316 if (s == NULL
4317 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4318 return FALSE;
4319 /* FRV-specific: remember it. */
4320 frvfdpic_pltrel_section (info) = s;
4321
4322 return TRUE;
4323 }
4324
4325 /* Make sure the got and plt sections exist, and that our pointers in
4326 the link hash table point to them. */
4327
4328 static bfd_boolean
4329 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4330 {
4331 /* This is mostly copied from
4332 elflink.c:_bfd_elf_create_dynamic_sections(). */
4333 flagword flags;
4334 asection *s;
4335 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4336
4337 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4338 | SEC_LINKER_CREATED);
4339
4340 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4341 .rel[a].bss sections. */
4342
4343 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4344 way. */
4345 if (! _frv_create_got_section (abfd, info))
4346 return FALSE;
4347
4348 /* FRV-specific: make sure we created everything we wanted. */
4349 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4350 && frvfdpic_gotfixup_section (info)
4351 && frvfdpic_plt_section (info)
4352 && frvfdpic_pltrel_section (info));
4353
4354 if (bed->want_dynbss)
4355 {
4356 /* The .dynbss section is a place to put symbols which are defined
4357 by dynamic objects, are referenced by regular objects, and are
4358 not functions. We must allocate space for them in the process
4359 image and use a R_*_COPY reloc to tell the dynamic linker to
4360 initialize them at run time. The linker script puts the .dynbss
4361 section into the .bss section of the final image. */
4362 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
4363 SEC_ALLOC | SEC_LINKER_CREATED);
4364 if (s == NULL)
4365 return FALSE;
4366
4367 /* The .rel[a].bss section holds copy relocs. This section is not
4368 normally needed. We need to create it here, though, so that the
4369 linker will map it to an output section. We can't just create it
4370 only if we need it, because we will not know whether we need it
4371 until we have seen all the input files, and the first time the
4372 main linker code calls BFD after examining all the input files
4373 (size_dynamic_sections) the input sections have already been
4374 mapped to the output sections. If the section turns out not to
4375 be needed, we can discard it later. We will never need this
4376 section when generating a shared object, since they do not use
4377 copy relocs. */
4378 if (! bfd_link_pic (info))
4379 {
4380 s = bfd_make_section_anyway_with_flags (abfd,
4381 (bed->default_use_rela_p
4382 ? ".rela.bss" : ".rel.bss"),
4383 flags | SEC_READONLY);
4384 if (s == NULL
4385 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4386 return FALSE;
4387 }
4388 }
4389
4390 return TRUE;
4391 }
4392
4393 /* Compute the total GOT and PLT size required by each symbol in each
4394 range. Symbols may require up to 4 words in the GOT: an entry
4395 pointing to the symbol, an entry pointing to its function
4396 descriptor, and a private function descriptors taking two
4397 words. */
4398
4399 static void
4400 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4401 struct _frvfdpic_dynamic_got_info *dinfo)
4402 {
4403 /* Allocate space for a GOT entry pointing to the symbol. */
4404 if (entry->got12)
4405 dinfo->got12 += 4;
4406 else if (entry->gotlos)
4407 dinfo->gotlos += 4;
4408 else if (entry->gothilo)
4409 dinfo->gothilo += 4;
4410 else
4411 entry->relocs32--;
4412 entry->relocs32++;
4413
4414 /* Allocate space for a GOT entry pointing to the function
4415 descriptor. */
4416 if (entry->fdgot12)
4417 dinfo->got12 += 4;
4418 else if (entry->fdgotlos)
4419 dinfo->gotlos += 4;
4420 else if (entry->fdgothilo)
4421 dinfo->gothilo += 4;
4422 else
4423 entry->relocsfd--;
4424 entry->relocsfd++;
4425
4426 /* Decide whether we need a PLT entry, a function descriptor in the
4427 GOT, and a lazy PLT entry for this symbol. */
4428 entry->plt = entry->call
4429 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4430 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4431 entry->privfd = entry->plt
4432 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4433 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4434 && (entry->symndx != -1
4435 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4436 entry->lazyplt = entry->privfd
4437 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4438 && ! (dinfo->info->flags & DF_BIND_NOW)
4439 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4440
4441 /* Allocate space for a function descriptor. */
4442 if (entry->fdgoff12)
4443 dinfo->fd12 += 8;
4444 else if (entry->fdgofflos)
4445 dinfo->fdlos += 8;
4446 else if (entry->privfd && entry->plt)
4447 dinfo->fdplt += 8;
4448 else if (entry->privfd)
4449 dinfo->fdhilo += 8;
4450 else
4451 entry->relocsfdv--;
4452 entry->relocsfdv++;
4453
4454 if (entry->lazyplt)
4455 dinfo->lzplt += 8;
4456 }
4457
4458 /* Compute the total GOT size required by each TLS symbol in each
4459 range. Symbols may require up to 5 words in the GOT: an entry
4460 holding the TLS offset for the symbol, and an entry with a full TLS
4461 descriptor taking 4 words. */
4462
4463 static void
4464 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4465 struct _frvfdpic_dynamic_got_info *dinfo,
4466 bfd_boolean subtract)
4467 {
4468 const int l = subtract ? -1 : 1;
4469
4470 /* Allocate space for a GOT entry with the TLS offset of the
4471 symbol. */
4472 if (entry->tlsoff12)
4473 dinfo->got12 += 4 * l;
4474 else if (entry->tlsofflos)
4475 dinfo->gotlos += 4 * l;
4476 else if (entry->tlsoffhilo)
4477 dinfo->gothilo += 4 * l;
4478 else
4479 entry->relocstlsoff -= l;
4480 entry->relocstlsoff += l;
4481
4482 /* If there's any TLSOFF relocation, mark the output file as not
4483 suitable for dlopening. This mark will remain even if we relax
4484 all such relocations, but this is not a problem, since we'll only
4485 do so for executables, and we definitely don't want anyone
4486 dlopening executables. */
4487 if (entry->relocstlsoff)
4488 dinfo->info->flags |= DF_STATIC_TLS;
4489
4490 /* Allocate space for a TLS descriptor. */
4491 if (entry->tlsdesc12)
4492 dinfo->tlsd12 += 8 * l;
4493 else if (entry->tlsdesclos)
4494 dinfo->tlsdlos += 8 * l;
4495 else if (entry->tlsplt)
4496 dinfo->tlsdplt += 8 * l;
4497 else if (entry->tlsdeschilo)
4498 dinfo->tlsdhilo += 8 * l;
4499 else
4500 entry->relocstlsd -= l;
4501 entry->relocstlsd += l;
4502 }
4503
4504 /* Compute the number of dynamic relocations and fixups that a symbol
4505 requires, and add (or subtract) from the grand and per-symbol
4506 totals. */
4507
4508 static void
4509 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4510 struct _frvfdpic_dynamic_got_info *dinfo,
4511 bfd_boolean subtract)
4512 {
4513 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4514
4515 if (!bfd_link_pde (dinfo->info))
4516 {
4517 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4518 + entry->relocstlsd;
4519
4520 /* In the executable, TLS relocations to symbols that bind
4521 locally (including those that resolve to global TLS offsets)
4522 are resolved immediately, without any need for fixups or
4523 dynamic relocations. In shared libraries, however, we must
4524 emit dynamic relocations even for local symbols, because we
4525 don't know the module id the library is going to get at
4526 run-time, nor its TLS base offset. */
4527 if (!bfd_link_executable (dinfo->info)
4528 || (entry->symndx == -1
4529 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4530 relocs += entry->relocstlsoff;
4531 }
4532 else
4533 {
4534 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4535 {
4536 if (entry->symndx != -1
4537 || entry->d.h->root.type != bfd_link_hash_undefweak)
4538 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4539 fixups += entry->relocstlsd;
4540 tlsrets += entry->relocstlsd;
4541 }
4542 else
4543 {
4544 relocs += entry->relocs32 + entry->relocsfdv
4545 + entry->relocstlsoff + entry->relocstlsd;
4546 }
4547
4548 if (entry->symndx != -1
4549 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4550 {
4551 if (entry->symndx != -1
4552 || entry->d.h->root.type != bfd_link_hash_undefweak)
4553 fixups += entry->relocsfd;
4554 }
4555 else
4556 relocs += entry->relocsfd;
4557 }
4558
4559 if (subtract)
4560 {
4561 relocs = - relocs;
4562 fixups = - fixups;
4563 tlsrets = - tlsrets;
4564 }
4565
4566 entry->dynrelocs += relocs;
4567 entry->fixups += fixups;
4568 dinfo->relocs += relocs;
4569 dinfo->fixups += fixups;
4570 dinfo->tls_ret_refs += tlsrets;
4571 }
4572
4573 /* Look for opportunities to relax TLS relocations. We can assume
4574 we're linking the main executable or a static-tls library, since
4575 otherwise we wouldn't have got here. When relaxing, we have to
4576 first undo any previous accounting of TLS uses of fixups, dynamic
4577 relocations, GOT and PLT entries. */
4578
4579 static void
4580 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4581 struct _frvfdpic_dynamic_got_info *dinfo,
4582 bfd_boolean relaxing)
4583 {
4584 bfd_boolean changed = ! relaxing;
4585
4586 BFD_ASSERT (bfd_link_executable (dinfo->info)
4587 || (dinfo->info->flags & DF_STATIC_TLS));
4588
4589 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4590 {
4591 if (! changed)
4592 {
4593 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4594 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4595 changed = TRUE;
4596 }
4597
4598 /* When linking an executable, we can always decay GOTTLSDESC to
4599 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4600 When linking a static-tls shared library, using TLSMOFF is
4601 not an option, but we can still use GOTTLSOFF. When decaying
4602 to GOTTLSOFF, we must keep the GOT entry in range. We know
4603 it has to fit because we'll be trading the 4 words of hte TLS
4604 descriptor for a single word in the same range. */
4605 if (! bfd_link_executable (dinfo->info)
4606 || (entry->symndx == -1
4607 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4608 {
4609 entry->tlsoff12 |= entry->tlsdesc12;
4610 entry->tlsofflos |= entry->tlsdesclos;
4611 entry->tlsoffhilo |= entry->tlsdeschilo;
4612 }
4613
4614 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4615 }
4616
4617 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4618 main executable. We have to check whether the symbol's TLSOFF is
4619 in range for a setlos. For symbols with a hash entry, we can
4620 determine exactly what to do; for others locals, we don't have
4621 addresses handy, so we use the size of the TLS section as an
4622 approximation. If we get it wrong, we'll retain a GOT entry
4623 holding the TLS offset (without dynamic relocations or fixups),
4624 but we'll still optimize away the loads from it. Since TLS sizes
4625 are generally very small, it's probably not worth attempting to
4626 do better than this. */
4627 if ((entry->tlsplt
4628 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4629 && bfd_link_executable (dinfo->info) && relaxing
4630 && ((entry->symndx == -1
4631 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4632 /* The above may hold for an undefweak TLS symbol, so make
4633 sure we don't have this case before accessing def.value
4634 and def.section. */
4635 && (entry->d.h->root.type == bfd_link_hash_undefweak
4636 || (bfd_vma)(entry->d.h->root.u.def.value
4637 + (entry->d.h->root.u.def.section
4638 ->output_section->vma)
4639 + entry->d.h->root.u.def.section->output_offset
4640 + entry->addend
4641 - tls_biased_base (dinfo->info)
4642 + 32768) < (bfd_vma)65536))
4643 || (entry->symndx != -1
4644 && (elf_hash_table (dinfo->info)->tls_sec->size
4645 + entry->addend < 32768 + FRVFDPIC_TLS_BIAS))))
4646 {
4647 if (! changed)
4648 {
4649 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4650 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4651 changed = TRUE;
4652 }
4653
4654 entry->tlsplt =
4655 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4656 }
4657
4658 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4659 have a #gottlsoff12 relocation for this entry, or if we can fit
4660 one more in the 12-bit (and 16-bit) ranges. */
4661 if (entry->tlsplt
4662 && (entry->tlsoff12
4663 || (relaxing
4664 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4665 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4666 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4667 <= 65536 - 12 - 4))))
4668 {
4669 if (! changed)
4670 {
4671 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4672 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4673 changed = TRUE;
4674 }
4675
4676 entry->tlsoff12 = 1;
4677 entry->tlsplt = 0;
4678 }
4679
4680 if (changed)
4681 {
4682 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4683 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4684 }
4685
4686 return;
4687 }
4688
4689 /* Compute the total GOT and PLT size required by each symbol in each range. *
4690 Symbols may require up to 4 words in the GOT: an entry pointing to
4691 the symbol, an entry pointing to its function descriptor, and a
4692 private function descriptors taking two words. */
4693
4694 static int
4695 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4696 {
4697 struct frvfdpic_relocs_info *entry = *entryp;
4698 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4699
4700 _frvfdpic_count_nontls_entries (entry, dinfo);
4701
4702 if (bfd_link_executable (dinfo->info)
4703 || (dinfo->info->flags & DF_STATIC_TLS))
4704 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4705 else
4706 {
4707 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4708 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4709 }
4710
4711 return 1;
4712 }
4713
4714 /* Determine the positive and negative ranges to be used by each
4715 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4716 double-word boundary, are the minimum (negative) and maximum
4717 (positive) GOT offsets already used by previous ranges, except for
4718 an ODD entry that may have been left behind. GOT and FD indicate
4719 the size of GOT entries and function descriptors that must be
4720 placed within the range from -WRAP to WRAP. If there's room left,
4721 up to FDPLT bytes should be reserved for additional function
4722 descriptors. */
4723
4724 inline static bfd_signed_vma
4725 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4726 bfd_signed_vma fdcur,
4727 bfd_signed_vma odd,
4728 bfd_signed_vma cur,
4729 bfd_vma got,
4730 bfd_vma fd,
4731 bfd_vma fdplt,
4732 bfd_vma tlsd,
4733 bfd_vma tlsdplt,
4734 bfd_vma wrap)
4735 {
4736 bfd_signed_vma wrapmin = -wrap;
4737 const bfd_vma tdescsz = 8;
4738
4739 /* Start at the given initial points. */
4740 gad->fdcur = fdcur;
4741 gad->cur = cur;
4742
4743 /* If we had an incoming odd word and we have any got entries that
4744 are going to use it, consume it, otherwise leave gad->odd at
4745 zero. We might force gad->odd to zero and return the incoming
4746 odd such that it is used by the next range, but then GOT entries
4747 might appear to be out of order and we wouldn't be able to
4748 shorten the GOT by one word if it turns out to end with an
4749 unpaired GOT entry. */
4750 if (odd && got)
4751 {
4752 gad->odd = odd;
4753 got -= 4;
4754 odd = 0;
4755 }
4756 else
4757 gad->odd = 0;
4758
4759 /* If we're left with an unpaired GOT entry, compute its location
4760 such that we can return it. Otherwise, if got doesn't require an
4761 odd number of words here, either odd was already zero in the
4762 block above, or it was set to zero because got was non-zero, or
4763 got was already zero. In the latter case, we want the value of
4764 odd to carry over to the return statement, so we don't want to
4765 reset odd unless the condition below is true. */
4766 if (got & 4)
4767 {
4768 odd = cur + got;
4769 got += 4;
4770 }
4771
4772 /* Compute the tentative boundaries of this range. */
4773 gad->max = cur + got;
4774 gad->min = fdcur - fd;
4775 gad->fdplt = 0;
4776
4777 /* If function descriptors took too much space, wrap some of them
4778 around. */
4779 if (gad->min < wrapmin)
4780 {
4781 gad->max += wrapmin - gad->min;
4782 gad->tmin = gad->min = wrapmin;
4783 }
4784
4785 /* If GOT entries took too much space, wrap some of them around.
4786 This may well cause gad->min to become lower than wrapmin. This
4787 will cause a relocation overflow later on, so we don't have to
4788 report it here . */
4789 if ((bfd_vma) gad->max > wrap)
4790 {
4791 gad->min -= gad->max - wrap;
4792 gad->max = wrap;
4793 }
4794
4795 /* Add TLS descriptors. */
4796 gad->tmax = gad->max + tlsd;
4797 gad->tmin = gad->min;
4798 gad->tlsdplt = 0;
4799
4800 /* If TLS descriptors took too much space, wrap an integral number
4801 of them around. */
4802 if ((bfd_vma) gad->tmax > wrap)
4803 {
4804 bfd_vma wrapsize = gad->tmax - wrap;
4805
4806 wrapsize += tdescsz / 2;
4807 wrapsize &= ~ tdescsz / 2;
4808
4809 gad->tmin -= wrapsize;
4810 gad->tmax -= wrapsize;
4811 }
4812
4813 /* If there is space left and we have function descriptors
4814 referenced in PLT entries that could take advantage of shorter
4815 offsets, place them now. */
4816 if (fdplt && gad->tmin > wrapmin)
4817 {
4818 bfd_vma fds;
4819
4820 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4821 fds = gad->tmin - wrapmin;
4822 else
4823 fds = fdplt;
4824
4825 fdplt -= fds;
4826 gad->min -= fds;
4827 gad->tmin -= fds;
4828 gad->fdplt += fds;
4829 }
4830
4831 /* If there is more space left, try to place some more function
4832 descriptors for PLT entries. */
4833 if (fdplt && (bfd_vma) gad->tmax < wrap)
4834 {
4835 bfd_vma fds;
4836
4837 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4838 fds = wrap - gad->tmax;
4839 else
4840 fds = fdplt;
4841
4842 fdplt -= fds;
4843 gad->max += fds;
4844 gad->tmax += fds;
4845 gad->fdplt += fds;
4846 }
4847
4848 /* If there is space left and we have TLS descriptors referenced in
4849 PLT entries that could take advantage of shorter offsets, place
4850 them now. */
4851 if (tlsdplt && gad->tmin > wrapmin)
4852 {
4853 bfd_vma tlsds;
4854
4855 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4856 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4857 else
4858 tlsds = tlsdplt;
4859
4860 tlsdplt -= tlsds;
4861 gad->tmin -= tlsds;
4862 gad->tlsdplt += tlsds;
4863 }
4864
4865 /* If there is more space left, try to place some more TLS
4866 descriptors for PLT entries. Although we could try to fit an
4867 additional TLS descriptor with half of it just before before the
4868 wrap point and another right past the wrap point, this might
4869 cause us to run out of space for the next region, so don't do
4870 it. */
4871 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4872 {
4873 bfd_vma tlsds;
4874
4875 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4876 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4877 else
4878 tlsds = tlsdplt;
4879
4880 tlsdplt -= tlsds;
4881 gad->tmax += tlsds;
4882 gad->tlsdplt += tlsds;
4883 }
4884
4885 /* If odd was initially computed as an offset past the wrap point,
4886 wrap it around. */
4887 if (odd > gad->max)
4888 odd = gad->min + odd - gad->max;
4889
4890 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4891 before returning, so do it here too. This guarantees that,
4892 should cur and fdcur meet at the wrap point, they'll both be
4893 equal to min. */
4894 if (gad->cur == gad->max)
4895 gad->cur = gad->min;
4896
4897 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
4898 gad->tcur = gad->max;
4899 if (gad->tcur == gad->tmax)
4900 gad->tcur = gad->tmin;
4901
4902 return odd;
4903 }
4904
4905 /* Compute the location of the next GOT entry, given the allocation
4906 data for a range. */
4907
4908 inline static bfd_signed_vma
4909 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4910 {
4911 bfd_signed_vma ret;
4912
4913 if (gad->odd)
4914 {
4915 /* If there was an odd word left behind, use it. */
4916 ret = gad->odd;
4917 gad->odd = 0;
4918 }
4919 else
4920 {
4921 /* Otherwise, use the word pointed to by cur, reserve the next
4922 as an odd word, and skip to the next pair of words, possibly
4923 wrapping around. */
4924 ret = gad->cur;
4925 gad->odd = gad->cur + 4;
4926 gad->cur += 8;
4927 if (gad->cur == gad->max)
4928 gad->cur = gad->min;
4929 }
4930
4931 return ret;
4932 }
4933
4934 /* Compute the location of the next function descriptor entry in the
4935 GOT, given the allocation data for a range. */
4936
4937 inline static bfd_signed_vma
4938 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4939 {
4940 /* If we're at the bottom, wrap around, and only then allocate the
4941 next pair of words. */
4942 if (gad->fdcur == gad->min)
4943 gad->fdcur = gad->max;
4944 return gad->fdcur -= 8;
4945 }
4946
4947 /* Compute the location of the next TLS descriptor entry in the GOT,
4948 given the allocation data for a range. */
4949 inline static bfd_signed_vma
4950 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4951 {
4952 bfd_signed_vma ret;
4953
4954 ret = gad->tcur;
4955
4956 gad->tcur += 8;
4957
4958 /* If we're at the top of the region, wrap around to the bottom. */
4959 if (gad->tcur == gad->tmax)
4960 gad->tcur = gad->tmin;
4961
4962 return ret;
4963 }
4964
4965 /* Assign GOT offsets for every GOT entry and function descriptor.
4966 Doing everything in a single pass is tricky. */
4967
4968 static int
4969 _frvfdpic_assign_got_entries (void **entryp, void *info_)
4970 {
4971 struct frvfdpic_relocs_info *entry = *entryp;
4972 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
4973
4974 if (entry->got12)
4975 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4976 else if (entry->gotlos)
4977 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4978 else if (entry->gothilo)
4979 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4980
4981 if (entry->fdgot12)
4982 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4983 else if (entry->fdgotlos)
4984 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4985 else if (entry->fdgothilo)
4986 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4987
4988 if (entry->fdgoff12)
4989 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4990 else if (entry->plt && dinfo->got12.fdplt)
4991 {
4992 dinfo->got12.fdplt -= 8;
4993 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4994 }
4995 else if (entry->fdgofflos)
4996 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4997 else if (entry->plt && dinfo->gotlos.fdplt)
4998 {
4999 dinfo->gotlos.fdplt -= 8;
5000 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5001 }
5002 else if (entry->plt)
5003 {
5004 dinfo->gothilo.fdplt -= 8;
5005 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5006 }
5007 else if (entry->privfd)
5008 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5009
5010 if (entry->tlsoff12)
5011 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5012 else if (entry->tlsofflos)
5013 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5014 else if (entry->tlsoffhilo)
5015 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5016
5017 if (entry->tlsdesc12)
5018 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5019 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5020 {
5021 dinfo->got12.tlsdplt -= 8;
5022 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5023 }
5024 else if (entry->tlsdesclos)
5025 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5026 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5027 {
5028 dinfo->gotlos.tlsdplt -= 8;
5029 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5030 }
5031 else if (entry->tlsplt)
5032 {
5033 dinfo->gothilo.tlsdplt -= 8;
5034 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5035 }
5036 else if (entry->tlsdeschilo)
5037 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5038
5039 return 1;
5040 }
5041
5042 /* Assign GOT offsets to private function descriptors used by PLT
5043 entries (or referenced by 32-bit offsets), as well as PLT entries
5044 and lazy PLT entries. */
5045
5046 static int
5047 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5048 {
5049 struct frvfdpic_relocs_info *entry = *entryp;
5050 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5051
5052 if (entry->privfd)
5053 BFD_ASSERT (entry->fd_entry);
5054
5055 if (entry->plt)
5056 {
5057 int size;
5058
5059 /* We use the section's raw size to mark the location of the
5060 next PLT entry. */
5061 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5062
5063 /* Figure out the length of this PLT entry based on the
5064 addressing mode we need to reach the function descriptor. */
5065 BFD_ASSERT (entry->fd_entry);
5066 if (entry->fd_entry >= -(1 << (12 - 1))
5067 && entry->fd_entry < (1 << (12 - 1)))
5068 size = 8;
5069 else if (entry->fd_entry >= -(1 << (16 - 1))
5070 && entry->fd_entry < (1 << (16 - 1)))
5071 size = 12;
5072 else
5073 size = 16;
5074
5075 frvfdpic_plt_section (dinfo->g.info)->size += size;
5076 }
5077
5078 if (entry->lazyplt)
5079 {
5080 entry->lzplt_entry = dinfo->g.lzplt;
5081 dinfo->g.lzplt += 8;
5082 /* If this entry is the one that gets the resolver stub, account
5083 for the additional instruction. */
5084 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5085 == FRVFDPIC_LZPLT_RESOLV_LOC)
5086 dinfo->g.lzplt += 4;
5087 }
5088
5089 if (entry->tlsplt)
5090 {
5091 int size;
5092
5093 entry->tlsplt_entry
5094 = frvfdpic_plt_section (dinfo->g.info)->size;
5095
5096 if (bfd_link_executable (dinfo->g.info)
5097 && (entry->symndx != -1
5098 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5099 {
5100 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5101 /* FIXME: here we use the size of the TLS section
5102 as an upper bound for the value of the TLS
5103 symbol, because we may not know the exact value
5104 yet. If we get it wrong, we'll just waste a
5105 word in the PLT, and we should never get even
5106 close to 32 KiB of TLS anyway. */
5107 && elf_hash_table (dinfo->g.info)->tls_sec
5108 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5109 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5110 size = 8;
5111 else
5112 size = 12;
5113 }
5114 else if (entry->tlsoff_entry)
5115 {
5116 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5117 && entry->tlsoff_entry < (1 << (12 - 1)))
5118 size = 8;
5119 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5120 && entry->tlsoff_entry < (1 << (16 - 1)))
5121 size = 12;
5122 else
5123 size = 16;
5124 }
5125 else
5126 {
5127 BFD_ASSERT (entry->tlsdesc_entry);
5128
5129 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5130 && entry->tlsdesc_entry < (1 << (12 - 1)))
5131 size = 8;
5132 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5133 && entry->tlsdesc_entry < (1 << (16 - 1)))
5134 size = 12;
5135 else
5136 size = 16;
5137 }
5138
5139 frvfdpic_plt_section (dinfo->g.info)->size += size;
5140 }
5141
5142 return 1;
5143 }
5144
5145 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5146 _frvfdpic_assign_plt_entries. */
5147
5148 static int
5149 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5150 {
5151 struct frvfdpic_relocs_info *entry = *entryp;
5152
5153 entry->got_entry = 0;
5154 entry->fdgot_entry = 0;
5155 entry->fd_entry = 0;
5156 entry->plt_entry = (bfd_vma)-1;
5157 entry->lzplt_entry = (bfd_vma)-1;
5158 entry->tlsoff_entry = 0;
5159 entry->tlsdesc_entry = 0;
5160 entry->tlsplt_entry = (bfd_vma)-1;
5161
5162 return 1;
5163 }
5164
5165 /* Follow indirect and warning hash entries so that each got entry
5166 points to the final symbol definition. P must point to a pointer
5167 to the hash table we're traversing. Since this traversal may
5168 modify the hash table, we set this pointer to NULL to indicate
5169 we've made a potentially-destructive change to the hash table, so
5170 the traversal must be restarted. */
5171 static int
5172 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5173 {
5174 struct frvfdpic_relocs_info *entry = *entryp;
5175 htab_t *htab = p;
5176
5177 if (entry->symndx == -1)
5178 {
5179 struct elf_link_hash_entry *h = entry->d.h;
5180 struct frvfdpic_relocs_info *oentry;
5181
5182 while (h->root.type == bfd_link_hash_indirect
5183 || h->root.type == bfd_link_hash_warning)
5184 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5185
5186 if (entry->d.h == h)
5187 return 1;
5188
5189 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5190 NO_INSERT);
5191
5192 if (oentry)
5193 {
5194 /* Merge the two entries. */
5195 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5196 htab_clear_slot (*htab, entryp);
5197 return 1;
5198 }
5199
5200 entry->d.h = h;
5201
5202 /* If we can't find this entry with the new bfd hash, re-insert
5203 it, and get the traversal restarted. */
5204 if (! htab_find (*htab, entry))
5205 {
5206 htab_clear_slot (*htab, entryp);
5207 entryp = htab_find_slot (*htab, entry, INSERT);
5208 if (! *entryp)
5209 *entryp = entry;
5210 /* Abort the traversal, since the whole table may have
5211 moved, and leave it up to the parent to restart the
5212 process. */
5213 *(htab_t *)p = NULL;
5214 return 0;
5215 }
5216 }
5217
5218 return 1;
5219 }
5220
5221 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5222 section and the rofixup section. Assign locations for GOT and PLT
5223 entries. */
5224
5225 static bfd_boolean
5226 _frvfdpic_size_got_plt (bfd *output_bfd,
5227 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5228 {
5229 bfd_signed_vma odd;
5230 bfd_vma limit, tlslimit;
5231 struct bfd_link_info *info = gpinfop->g.info;
5232 bfd *dynobj = elf_hash_table (info)->dynobj;
5233
5234 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5235 sizeof (gpinfop->g));
5236
5237 odd = 12;
5238 /* Compute the total size taken by entries in the 12-bit and 16-bit
5239 ranges, to tell how many PLT function descriptors we can bring
5240 into the 12-bit range without causing the 16-bit range to
5241 overflow. */
5242 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5243 + gpinfop->g.fd12 + gpinfop->g.fdlos
5244 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5245 if (limit < (bfd_vma)1 << 16)
5246 limit = ((bfd_vma)1 << 16) - limit;
5247 else
5248 limit = 0;
5249 if (gpinfop->g.fdplt < limit)
5250 {
5251 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5252 limit = gpinfop->g.fdplt;
5253 }
5254 else
5255 tlslimit = 0;
5256 if (gpinfop->g.tlsdplt < tlslimit)
5257 tlslimit = gpinfop->g.tlsdplt;
5258
5259 /* Determine the ranges of GOT offsets that we can use for each
5260 range of addressing modes. */
5261 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5262 0,
5263 odd,
5264 16,
5265 gpinfop->g.got12,
5266 gpinfop->g.fd12,
5267 limit,
5268 gpinfop->g.tlsd12,
5269 tlslimit,
5270 (bfd_vma)1 << (12-1));
5271 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5272 gpinfop->got12.tmin,
5273 odd,
5274 gpinfop->got12.tmax,
5275 gpinfop->g.gotlos,
5276 gpinfop->g.fdlos,
5277 gpinfop->g.fdplt
5278 - gpinfop->got12.fdplt,
5279 gpinfop->g.tlsdlos,
5280 gpinfop->g.tlsdplt
5281 - gpinfop->got12.tlsdplt,
5282 (bfd_vma)1 << (16-1));
5283 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5284 gpinfop->gotlos.tmin,
5285 odd,
5286 gpinfop->gotlos.tmax,
5287 gpinfop->g.gothilo,
5288 gpinfop->g.fdhilo,
5289 gpinfop->g.fdplt
5290 - gpinfop->got12.fdplt
5291 - gpinfop->gotlos.fdplt,
5292 gpinfop->g.tlsdhilo,
5293 gpinfop->g.tlsdplt
5294 - gpinfop->got12.tlsdplt
5295 - gpinfop->gotlos.tlsdplt,
5296 (bfd_vma)1 << (32-1));
5297
5298 /* Now assign (most) GOT offsets. */
5299 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5300 gpinfop);
5301
5302 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5303 - gpinfop->gothilo.tmin
5304 /* If an odd word is the last word of the GOT, we don't need this
5305 word to be part of the GOT. */
5306 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5307 if (frvfdpic_got_section (info)->size == 0)
5308 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5309 else if (frvfdpic_got_section (info)->size == 12
5310 && ! elf_hash_table (info)->dynamic_sections_created)
5311 {
5312 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5313 frvfdpic_got_section (info)->size = 0;
5314 }
5315 /* This will be non-NULL during relaxation. The assumption is that
5316 the size of one of these sections will never grow, only shrink,
5317 so we can use the larger buffer we allocated before. */
5318 else if (frvfdpic_got_section (info)->contents == NULL)
5319 {
5320 frvfdpic_got_section (info)->contents =
5321 (bfd_byte *) bfd_zalloc (dynobj,
5322 frvfdpic_got_section (info)->size);
5323 if (frvfdpic_got_section (info)->contents == NULL)
5324 return FALSE;
5325 }
5326
5327 if (frvfdpic_gotrel_section (info))
5328 /* Subtract the number of lzplt entries, since those will generate
5329 relocations in the pltrel section. */
5330 frvfdpic_gotrel_section (info)->size =
5331 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5332 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5333 else
5334 BFD_ASSERT (gpinfop->g.relocs == 0);
5335 if (frvfdpic_gotrel_section (info)->size == 0)
5336 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5337 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5338 {
5339 frvfdpic_gotrel_section (info)->contents =
5340 (bfd_byte *) bfd_zalloc (dynobj,
5341 frvfdpic_gotrel_section (info)->size);
5342 if (frvfdpic_gotrel_section (info)->contents == NULL)
5343 return FALSE;
5344 }
5345
5346 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5347 if (frvfdpic_gotfixup_section (info)->size == 0)
5348 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5349 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5350 {
5351 frvfdpic_gotfixup_section (info)->contents =
5352 (bfd_byte *) bfd_zalloc (dynobj,
5353 frvfdpic_gotfixup_section (info)->size);
5354 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5355 return FALSE;
5356 }
5357
5358 if (frvfdpic_pltrel_section (info))
5359 {
5360 frvfdpic_pltrel_section (info)->size =
5361 gpinfop->g.lzplt / 8
5362 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5363 if (frvfdpic_pltrel_section (info)->size == 0)
5364 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5365 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5366 {
5367 frvfdpic_pltrel_section (info)->contents =
5368 (bfd_byte *) bfd_zalloc (dynobj,
5369 frvfdpic_pltrel_section (info)->size);
5370 if (frvfdpic_pltrel_section (info)->contents == NULL)
5371 return FALSE;
5372 }
5373 }
5374
5375 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5376 such that there's room for the additional instruction needed to
5377 call the resolver. Since _frvfdpic_assign_got_entries didn't
5378 account for them, our block size is 4 bytes smaller than the real
5379 block size. */
5380 if (frvfdpic_plt_section (info))
5381 {
5382 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5383 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5384 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5385 }
5386
5387 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5388 actually assign lazy PLT entries addresses. */
5389 gpinfop->g.lzplt = 0;
5390
5391 /* Save information that we're going to need to generate GOT and PLT
5392 entries. */
5393 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5394
5395 if (get_elf_backend_data (output_bfd)->want_got_sym)
5396 elf_hash_table (info)->hgot->root.u.def.value
5397 = frvfdpic_got_initial_offset (info);
5398
5399 if (frvfdpic_plt_section (info))
5400 frvfdpic_plt_initial_offset (info) =
5401 frvfdpic_plt_section (info)->size;
5402
5403 /* Allocate a ret statement at plt_initial_offset, to be used by
5404 locally-resolved TLS descriptors. */
5405 if (gpinfop->g.tls_ret_refs)
5406 frvfdpic_plt_section (info)->size += 4;
5407
5408 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5409 gpinfop);
5410
5411 /* Allocate the PLT section contents only after
5412 _frvfdpic_assign_plt_entries has a chance to add the size of the
5413 non-lazy PLT entries. */
5414 if (frvfdpic_plt_section (info))
5415 {
5416 if (frvfdpic_plt_section (info)->size == 0)
5417 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5418 else if (frvfdpic_plt_section (info)->contents == NULL)
5419 {
5420 frvfdpic_plt_section (info)->contents =
5421 (bfd_byte *) bfd_zalloc (dynobj,
5422 frvfdpic_plt_section (info)->size);
5423 if (frvfdpic_plt_section (info)->contents == NULL)
5424 return FALSE;
5425 }
5426 }
5427
5428 return TRUE;
5429 }
5430
5431 /* Set the sizes of the dynamic sections. */
5432
5433 static bfd_boolean
5434 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5435 struct bfd_link_info *info)
5436 {
5437 bfd *dynobj;
5438 asection *s;
5439 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5440
5441 dynobj = elf_hash_table (info)->dynobj;
5442 BFD_ASSERT (dynobj != NULL);
5443
5444 if (elf_hash_table (info)->dynamic_sections_created)
5445 {
5446 /* Set the contents of the .interp section to the interpreter. */
5447 if (bfd_link_executable (info) && !info->nointerp)
5448 {
5449 s = bfd_get_linker_section (dynobj, ".interp");
5450 BFD_ASSERT (s != NULL);
5451 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5452 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5453 }
5454 }
5455
5456 memset (&gpinfo, 0, sizeof (gpinfo));
5457 gpinfo.g.info = info;
5458
5459 for (;;)
5460 {
5461 htab_t relocs = frvfdpic_relocs_info (info);
5462
5463 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5464
5465 if (relocs == frvfdpic_relocs_info (info))
5466 break;
5467 }
5468
5469 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5470 &gpinfo.g);
5471
5472 /* Allocate space to save the summary information, we're going to
5473 use it if we're doing relaxations. */
5474 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5475
5476 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5477 return FALSE;
5478
5479 if (elf_hash_table (info)->dynamic_sections_created)
5480 {
5481 if (frvfdpic_got_section (info)->size)
5482 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5483 return FALSE;
5484
5485 if (frvfdpic_pltrel_section (info)->size)
5486 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5487 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5488 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5489 return FALSE;
5490
5491 if (frvfdpic_gotrel_section (info)->size)
5492 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5493 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5494 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5495 sizeof (Elf32_External_Rel)))
5496 return FALSE;
5497 }
5498
5499 return TRUE;
5500 }
5501
5502 static bfd_boolean
5503 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5504 struct bfd_link_info *info)
5505 {
5506 if (!bfd_link_relocatable (info)
5507 && !bfd_elf_stack_segment_size (output_bfd, info,
5508 "__stacksize", DEFAULT_STACK_SIZE))
5509 return FALSE;
5510
5511 return TRUE;
5512 }
5513
5514 /* Check whether any of the relocations was optimized away, and
5515 subtract it from the relocation or fixup count. */
5516 static bfd_boolean
5517 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5518 struct bfd_link_info *info,
5519
5520 bfd_boolean *changed)
5521 {
5522 Elf_Internal_Shdr *symtab_hdr;
5523 struct elf_link_hash_entry **sym_hashes;
5524 Elf_Internal_Rela *rel, *erel;
5525
5526 if ((sec->flags & SEC_RELOC) == 0
5527 || sec->reloc_count == 0)
5528 return TRUE;
5529
5530 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5531 sym_hashes = elf_sym_hashes (abfd);
5532
5533 rel = elf_section_data (sec)->relocs;
5534
5535 /* Now examine each relocation. */
5536 for (erel = rel + sec->reloc_count; rel < erel; rel++)
5537 {
5538 struct elf_link_hash_entry *h;
5539 unsigned long r_symndx;
5540 struct frvfdpic_relocs_info *picrel;
5541 struct _frvfdpic_dynamic_got_info *dinfo;
5542
5543 if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5544 && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5545 continue;
5546
5547 if (_bfd_elf_section_offset (sec->output_section->owner,
5548 info, sec, rel->r_offset)
5549 != (bfd_vma)-1)
5550 continue;
5551
5552 r_symndx = ELF32_R_SYM (rel->r_info);
5553 if (r_symndx < symtab_hdr->sh_info)
5554 h = NULL;
5555 else
5556 {
5557 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5558 while (h->root.type == bfd_link_hash_indirect
5559 || h->root.type == bfd_link_hash_warning)
5560 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5561 }
5562
5563 if (h != NULL)
5564 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5565 abfd, h,
5566 rel->r_addend, NO_INSERT);
5567 else
5568 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5569 abfd, r_symndx,
5570 rel->r_addend, NO_INSERT);
5571
5572 if (! picrel)
5573 return FALSE;
5574
5575 *changed = TRUE;
5576 dinfo = frvfdpic_dynamic_got_plt_info (info);
5577
5578 _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5579 if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5580 picrel->relocs32--;
5581 else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5582 picrel->relocsfd--;
5583 _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5584 }
5585
5586 return TRUE;
5587 }
5588
5589 static bfd_boolean
5590 frvfdpic_elf_discard_info (bfd *ibfd,
5591 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5592 struct bfd_link_info *info)
5593 {
5594 bfd_boolean changed = FALSE;
5595 asection *s;
5596 bfd *obfd = NULL;
5597
5598 /* Account for relaxation of .eh_frame section. */
5599 for (s = ibfd->sections; s; s = s->next)
5600 if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
5601 {
5602 if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5603 return FALSE;
5604 obfd = s->output_section->owner;
5605 }
5606
5607 if (changed)
5608 {
5609 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5610
5611 memset (&gpinfo, 0, sizeof (gpinfo));
5612 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5613 sizeof (gpinfo.g));
5614
5615 /* Clear GOT and PLT assignments. */
5616 htab_traverse (frvfdpic_relocs_info (info),
5617 _frvfdpic_reset_got_plt_entries,
5618 NULL);
5619
5620 if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5621 return FALSE;
5622 }
5623
5624 return TRUE;
5625 }
5626
5627 /* Look for opportunities to relax TLS relocations. We can assume
5628 we're linking the main executable or a static-tls library, since
5629 otherwise we wouldn't have got here. */
5630
5631 static int
5632 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5633 {
5634 struct frvfdpic_relocs_info *entry = *entryp;
5635 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5636
5637 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5638
5639 return 1;
5640 }
5641
5642 static bfd_boolean
5643 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5644 struct bfd_link_info *info, bfd_boolean *again)
5645 {
5646 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5647
5648 if (bfd_link_relocatable (info))
5649 (*info->callbacks->einfo)
5650 (_("%P%F: --relax and -r may not be used together\n"));
5651
5652 /* If we return early, we didn't change anything. */
5653 *again = FALSE;
5654
5655 /* We'll do our thing when requested to relax the GOT section. */
5656 if (sec != frvfdpic_got_section (info))
5657 return TRUE;
5658
5659 /* We can only relax when linking the main executable or a library
5660 that can't be dlopened. */
5661 if (! bfd_link_executable (info) && ! (info->flags & DF_STATIC_TLS))
5662 return TRUE;
5663
5664 /* If there isn't a TLS section for this binary, we can't do
5665 anything about its TLS relocations (it probably doesn't have
5666 any. */
5667 if (elf_hash_table (info)->tls_sec == NULL)
5668 return TRUE;
5669
5670 memset (&gpinfo, 0, sizeof (gpinfo));
5671 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5672
5673 /* Now look for opportunities to relax, adjusting the GOT usage
5674 as needed. */
5675 htab_traverse (frvfdpic_relocs_info (info),
5676 _frvfdpic_relax_got_plt_entries,
5677 &gpinfo.g);
5678
5679 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5680 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5681 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5682 {
5683 /* Clear GOT and PLT assignments. */
5684 htab_traverse (frvfdpic_relocs_info (info),
5685 _frvfdpic_reset_got_plt_entries,
5686 NULL);
5687
5688 /* The owner of the TLS section is the output bfd. There should
5689 be a better way to get to it. */
5690 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5691 &gpinfo))
5692 return FALSE;
5693
5694 /* Repeat until we don't make any further changes. We could fail to
5695 introduce changes in a round if, for example, the 12-bit range is
5696 full, but we later release some space by getting rid of TLS
5697 descriptors in it. We have to repeat the whole process because
5698 we might have changed the size of a section processed before this
5699 one. */
5700 *again = TRUE;
5701 }
5702
5703 return TRUE;
5704 }
5705
5706 /* Fill in code and data in dynamic sections. */
5707
5708 static bfd_boolean
5709 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5710 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5711 {
5712 /* Nothing to be done for non-FDPIC. */
5713 return TRUE;
5714 }
5715
5716 static bfd_boolean
5717 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5718 struct bfd_link_info *info)
5719 {
5720 bfd *dynobj;
5721 asection *sdyn;
5722
5723 dynobj = elf_hash_table (info)->dynobj;
5724
5725 if (frvfdpic_dynamic_got_plt_info (info))
5726 {
5727 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5728 }
5729 if (frvfdpic_got_section (info))
5730 {
5731 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5732 == (frvfdpic_gotrel_section (info)->reloc_count
5733 * sizeof (Elf32_External_Rel)));
5734
5735 if (frvfdpic_gotfixup_section (info))
5736 {
5737 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5738 bfd_vma got_value = hgot->root.u.def.value
5739 + hgot->root.u.def.section->output_section->vma
5740 + hgot->root.u.def.section->output_offset;
5741 struct bfd_link_hash_entry *hend;
5742
5743 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5744 got_value, 0);
5745
5746 if (frvfdpic_gotfixup_section (info)->size
5747 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5748 {
5749 error:
5750 info->callbacks->einfo
5751 ("LINKER BUG: .rofixup section size mismatch\n");
5752 return FALSE;
5753 }
5754
5755 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5756 FALSE, FALSE, TRUE);
5757 if (hend
5758 && (hend->type == bfd_link_hash_defined
5759 || hend->type == bfd_link_hash_defweak)
5760 && hend->u.def.section->output_section != NULL)
5761 {
5762 bfd_vma value =
5763 frvfdpic_gotfixup_section (info)->output_section->vma
5764 + frvfdpic_gotfixup_section (info)->output_offset
5765 + frvfdpic_gotfixup_section (info)->size
5766 - hend->u.def.section->output_section->vma
5767 - hend->u.def.section->output_offset;
5768 BFD_ASSERT (hend->u.def.value == value);
5769 if (hend->u.def.value != value)
5770 goto error;
5771 }
5772 }
5773 }
5774 if (frvfdpic_pltrel_section (info))
5775 {
5776 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5777 == (frvfdpic_pltrel_section (info)->reloc_count
5778 * sizeof (Elf32_External_Rel)));
5779 }
5780
5781
5782 if (elf_hash_table (info)->dynamic_sections_created)
5783 {
5784 Elf32_External_Dyn * dyncon;
5785 Elf32_External_Dyn * dynconend;
5786
5787 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5788
5789 BFD_ASSERT (sdyn != NULL);
5790
5791 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5792 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5793
5794 for (; dyncon < dynconend; dyncon++)
5795 {
5796 Elf_Internal_Dyn dyn;
5797
5798 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5799
5800 switch (dyn.d_tag)
5801 {
5802 default:
5803 break;
5804
5805 case DT_PLTGOT:
5806 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5807 + frvfdpic_got_section (info)->output_offset
5808 + frvfdpic_got_initial_offset (info);
5809 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5810 break;
5811
5812 case DT_JMPREL:
5813 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5814 ->output_section->vma
5815 + frvfdpic_pltrel_section (info)->output_offset;
5816 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5817 break;
5818
5819 case DT_PLTRELSZ:
5820 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5821 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5822 break;
5823 }
5824 }
5825 }
5826
5827 return TRUE;
5828 }
5829
5830 /* Adjust a symbol defined by a dynamic object and referenced by a
5831 regular object. */
5832
5833 static bfd_boolean
5834 elf32_frvfdpic_adjust_dynamic_symbol
5835 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5836 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5837 {
5838 bfd * dynobj;
5839
5840 dynobj = elf_hash_table (info)->dynobj;
5841
5842 /* Make sure we know what is going on here. */
5843 BFD_ASSERT (dynobj != NULL
5844 && (h->u.weakdef != NULL
5845 || (h->def_dynamic
5846 && h->ref_regular
5847 && !h->def_regular)));
5848
5849 /* If this is a weak symbol, and there is a real definition, the
5850 processor independent code will have arranged for us to see the
5851 real definition first, and we can just use the same value. */
5852 if (h->u.weakdef != NULL)
5853 {
5854 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5855 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5856 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5857 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5858 }
5859
5860 return TRUE;
5861 }
5862
5863 /* Perform any actions needed for dynamic symbols. */
5864
5865 static bfd_boolean
5866 elf32_frvfdpic_finish_dynamic_symbol
5867 (bfd *output_bfd ATTRIBUTE_UNUSED,
5868 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5869 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5870 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5871 {
5872 return TRUE;
5873 }
5874
5875 /* Decide whether to attempt to turn absptr or lsda encodings in
5876 shared libraries into pcrel within the given input section. */
5877
5878 static bfd_boolean
5879 frvfdpic_elf_use_relative_eh_frame
5880 (bfd *input_bfd ATTRIBUTE_UNUSED,
5881 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5882 asection *eh_frame_section ATTRIBUTE_UNUSED)
5883 {
5884 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
5885 return FALSE;
5886 }
5887
5888 /* Adjust the contents of an eh_frame_hdr section before they're output. */
5889
5890 static bfd_byte
5891 frvfdpic_elf_encode_eh_address (bfd *abfd,
5892 struct bfd_link_info *info,
5893 asection *osec, bfd_vma offset,
5894 asection *loc_sec, bfd_vma loc_offset,
5895 bfd_vma *encoded)
5896 {
5897 struct elf_link_hash_entry *h;
5898
5899 h = elf_hash_table (info)->hgot;
5900 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
5901
5902 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
5903 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
5904 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
5905 loc_sec, loc_offset, encoded);
5906
5907 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
5908 == (_frvfdpic_osec_to_segment
5909 (abfd, h->root.u.def.section->output_section)));
5910
5911 *encoded = osec->vma + offset
5912 - (h->root.u.def.value
5913 + h->root.u.def.section->output_section->vma
5914 + h->root.u.def.section->output_offset);
5915
5916 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
5917 }
5918
5919 /* Look through the relocs for a section during the first phase.
5920
5921 Besides handling virtual table relocs for gc, we have to deal with
5922 all sorts of PIC-related relocations. We describe below the
5923 general plan on how to handle such relocations, even though we only
5924 collect information at this point, storing them in hash tables for
5925 perusal of later passes.
5926
5927 32 relocations are propagated to the linker output when creating
5928 position-independent output. LO16 and HI16 relocations are not
5929 supposed to be encountered in this case.
5930
5931 LABEL16 should always be resolvable by the linker, since it's only
5932 used by branches.
5933
5934 LABEL24, on the other hand, is used by calls. If it turns out that
5935 the target of a call is a dynamic symbol, a PLT entry must be
5936 created for it, which triggers the creation of a private function
5937 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
5938
5939 GPREL relocations require the referenced symbol to be in the same
5940 segment as _gp, but this can only be checked later.
5941
5942 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
5943 exist. LABEL24 might as well, since it may require a PLT entry,
5944 that will require a got.
5945
5946 Non-FUNCDESC GOT relocations require a GOT entry to be created
5947 regardless of whether the symbol is dynamic. However, since a
5948 global symbol that turns out to not be exported may have the same
5949 address of a non-dynamic symbol, we don't assign GOT entries at
5950 this point, such that we can share them in this case. A relocation
5951 for the GOT entry always has to be created, be it to offset a
5952 private symbol by the section load address, be it to get the symbol
5953 resolved dynamically.
5954
5955 FUNCDESC GOT relocations require a GOT entry to be created, and
5956 handled as if a FUNCDESC relocation was applied to the GOT entry in
5957 an object file.
5958
5959 FUNCDESC relocations referencing a symbol that turns out to NOT be
5960 dynamic cause a private function descriptor to be created. The
5961 FUNCDESC relocation then decays to a 32 relocation that points at
5962 the private descriptor. If the symbol is dynamic, the FUNCDESC
5963 relocation is propagated to the linker output, such that the
5964 dynamic linker creates the canonical descriptor, pointing to the
5965 dynamically-resolved definition of the function.
5966
5967 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
5968 symbols that are assigned to the same segment as the GOT, but we
5969 can only check this later, after we know the complete set of
5970 symbols defined and/or exported.
5971
5972 FUNCDESC GOTOFF relocations require a function descriptor to be
5973 created and, unless lazy binding is disabled or the symbol is not
5974 dynamic, a lazy PLT entry. Since we can't tell at this point
5975 whether a symbol is going to be dynamic, we have to decide later
5976 whether to create a lazy PLT entry or bind the descriptor directly
5977 to the private function.
5978
5979 FUNCDESC_VALUE relocations are not supposed to be present in object
5980 files, but they may very well be simply propagated to the linker
5981 output, since they have no side effect.
5982
5983
5984 A function descriptor always requires a FUNCDESC_VALUE relocation.
5985 Whether it's in .plt.rel or not depends on whether lazy binding is
5986 enabled and on whether the referenced symbol is dynamic.
5987
5988 The existence of a lazy PLT requires the resolverStub lazy PLT
5989 entry to be present.
5990
5991
5992 As for assignment of GOT, PLT and lazy PLT entries, and private
5993 descriptors, we might do them all sequentially, but we can do
5994 better than that. For example, we can place GOT entries and
5995 private function descriptors referenced using 12-bit operands
5996 closer to the PIC register value, such that these relocations don't
5997 overflow. Those that are only referenced with LO16 relocations
5998 could come next, but we may as well place PLT-required function
5999 descriptors in the 12-bit range to make them shorter. Symbols
6000 referenced with LO16/HI16 may come next, but we may place
6001 additional function descriptors in the 16-bit range if we can
6002 reliably tell that we've already placed entries that are ever
6003 referenced with only LO16. PLT entries are therefore generated as
6004 small as possible, while not introducing relocation overflows in
6005 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
6006 generated before or after PLT entries, but not intermingled with
6007 them, such that we can have more lazy PLT entries in range for a
6008 branch to the resolverStub. The resolverStub should be emitted at
6009 the most distant location from the first lazy PLT entry such that
6010 it's still in range for a branch, or closer, if there isn't a need
6011 for so many lazy PLT entries. Additional lazy PLT entries may be
6012 emitted after the resolverStub, as long as branches are still in
6013 range. If the branch goes out of range, longer lazy PLT entries
6014 are emitted.
6015
6016 We could further optimize PLT and lazy PLT entries by giving them
6017 priority in assignment to closer-to-gr17 locations depending on the
6018 number of occurrences of references to them (assuming a function
6019 that's called more often is more important for performance, so its
6020 PLT entry should be faster), or taking hints from the compiler.
6021 Given infinite time and money... :-) */
6022
6023 static bfd_boolean
6024 elf32_frv_check_relocs (bfd *abfd,
6025 struct bfd_link_info *info,
6026 asection *sec,
6027 const Elf_Internal_Rela *relocs)
6028 {
6029 Elf_Internal_Shdr *symtab_hdr;
6030 struct elf_link_hash_entry **sym_hashes;
6031 const Elf_Internal_Rela *rel;
6032 const Elf_Internal_Rela *rel_end;
6033 bfd *dynobj;
6034 struct frvfdpic_relocs_info *picrel;
6035
6036 if (bfd_link_relocatable (info))
6037 return TRUE;
6038
6039 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6040 sym_hashes = elf_sym_hashes (abfd);
6041
6042 dynobj = elf_hash_table (info)->dynobj;
6043 rel_end = relocs + sec->reloc_count;
6044 for (rel = relocs; rel < rel_end; rel++)
6045 {
6046 struct elf_link_hash_entry *h;
6047 unsigned long r_symndx;
6048
6049 r_symndx = ELF32_R_SYM (rel->r_info);
6050 if (r_symndx < symtab_hdr->sh_info)
6051 h = NULL;
6052 else
6053 {
6054 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6055 while (h->root.type == bfd_link_hash_indirect
6056 || h->root.type == bfd_link_hash_warning)
6057 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6058
6059 /* PR15323, ref flags aren't set for references in the same
6060 object. */
6061 h->root.non_ir_ref = 1;
6062 }
6063
6064 switch (ELF32_R_TYPE (rel->r_info))
6065 {
6066 case R_FRV_GETTLSOFF:
6067 case R_FRV_TLSDESC_VALUE:
6068 case R_FRV_GOTTLSDESC12:
6069 case R_FRV_GOTTLSDESCHI:
6070 case R_FRV_GOTTLSDESCLO:
6071 case R_FRV_GOTTLSOFF12:
6072 case R_FRV_GOTTLSOFFHI:
6073 case R_FRV_GOTTLSOFFLO:
6074 case R_FRV_TLSOFF:
6075 case R_FRV_GOT12:
6076 case R_FRV_GOTHI:
6077 case R_FRV_GOTLO:
6078 case R_FRV_FUNCDESC_GOT12:
6079 case R_FRV_FUNCDESC_GOTHI:
6080 case R_FRV_FUNCDESC_GOTLO:
6081 case R_FRV_GOTOFF12:
6082 case R_FRV_GOTOFFHI:
6083 case R_FRV_GOTOFFLO:
6084 case R_FRV_FUNCDESC_GOTOFF12:
6085 case R_FRV_FUNCDESC_GOTOFFHI:
6086 case R_FRV_FUNCDESC_GOTOFFLO:
6087 case R_FRV_FUNCDESC:
6088 case R_FRV_FUNCDESC_VALUE:
6089 case R_FRV_TLSMOFF12:
6090 case R_FRV_TLSMOFFHI:
6091 case R_FRV_TLSMOFFLO:
6092 case R_FRV_TLSMOFF:
6093 if (! IS_FDPIC (abfd))
6094 goto bad_reloc;
6095 /* Fall through. */
6096 case R_FRV_GPREL12:
6097 case R_FRV_GPRELU12:
6098 case R_FRV_GPRELHI:
6099 case R_FRV_GPRELLO:
6100 case R_FRV_LABEL24:
6101 case R_FRV_32:
6102 if (! dynobj)
6103 {
6104 elf_hash_table (info)->dynobj = dynobj = abfd;
6105 if (! _frv_create_got_section (abfd, info))
6106 return FALSE;
6107 }
6108 if (! IS_FDPIC (abfd))
6109 {
6110 picrel = NULL;
6111 break;
6112 }
6113 if (h != NULL)
6114 {
6115 if (h->dynindx == -1)
6116 switch (ELF_ST_VISIBILITY (h->other))
6117 {
6118 case STV_INTERNAL:
6119 case STV_HIDDEN:
6120 break;
6121 default:
6122 bfd_elf_link_record_dynamic_symbol (info, h);
6123 break;
6124 }
6125 picrel
6126 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6127 abfd, h,
6128 rel->r_addend, INSERT);
6129 }
6130 else
6131 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6132 (info), abfd, r_symndx,
6133 rel->r_addend, INSERT);
6134 if (! picrel)
6135 return FALSE;
6136 break;
6137
6138 default:
6139 picrel = NULL;
6140 break;
6141 }
6142
6143 switch (ELF32_R_TYPE (rel->r_info))
6144 {
6145 case R_FRV_LABEL24:
6146 if (IS_FDPIC (abfd))
6147 picrel->call = 1;
6148 break;
6149
6150 case R_FRV_FUNCDESC_VALUE:
6151 picrel->relocsfdv++;
6152 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6153 picrel->relocs32--;
6154 /* Fall through. */
6155
6156 case R_FRV_32:
6157 if (! IS_FDPIC (abfd))
6158 break;
6159
6160 picrel->sym = 1;
6161 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6162 picrel->relocs32++;
6163 break;
6164
6165 case R_FRV_GOT12:
6166 picrel->got12 = 1;
6167 break;
6168
6169 case R_FRV_GOTHI:
6170 case R_FRV_GOTLO:
6171 picrel->gothilo = 1;
6172 break;
6173
6174 case R_FRV_FUNCDESC_GOT12:
6175 picrel->fdgot12 = 1;
6176 break;
6177
6178 case R_FRV_FUNCDESC_GOTHI:
6179 case R_FRV_FUNCDESC_GOTLO:
6180 picrel->fdgothilo = 1;
6181 break;
6182
6183 case R_FRV_GOTOFF12:
6184 case R_FRV_GOTOFFHI:
6185 case R_FRV_GOTOFFLO:
6186 picrel->gotoff = 1;
6187 break;
6188
6189 case R_FRV_FUNCDESC_GOTOFF12:
6190 picrel->fdgoff12 = 1;
6191 break;
6192
6193 case R_FRV_FUNCDESC_GOTOFFHI:
6194 case R_FRV_FUNCDESC_GOTOFFLO:
6195 picrel->fdgoffhilo = 1;
6196 break;
6197
6198 case R_FRV_FUNCDESC:
6199 picrel->fd = 1;
6200 picrel->relocsfd++;
6201 break;
6202
6203 case R_FRV_GETTLSOFF:
6204 picrel->tlsplt = 1;
6205 break;
6206
6207 case R_FRV_TLSDESC_VALUE:
6208 picrel->relocstlsd++;
6209 goto bad_reloc;
6210
6211 case R_FRV_GOTTLSDESC12:
6212 picrel->tlsdesc12 = 1;
6213 break;
6214
6215 case R_FRV_GOTTLSDESCHI:
6216 case R_FRV_GOTTLSDESCLO:
6217 picrel->tlsdeschilo = 1;
6218 break;
6219
6220 case R_FRV_TLSMOFF12:
6221 case R_FRV_TLSMOFFHI:
6222 case R_FRV_TLSMOFFLO:
6223 case R_FRV_TLSMOFF:
6224 break;
6225
6226 case R_FRV_GOTTLSOFF12:
6227 picrel->tlsoff12 = 1;
6228 info->flags |= DF_STATIC_TLS;
6229 break;
6230
6231 case R_FRV_GOTTLSOFFHI:
6232 case R_FRV_GOTTLSOFFLO:
6233 picrel->tlsoffhilo = 1;
6234 info->flags |= DF_STATIC_TLS;
6235 break;
6236
6237 case R_FRV_TLSOFF:
6238 picrel->relocstlsoff++;
6239 info->flags |= DF_STATIC_TLS;
6240 goto bad_reloc;
6241
6242 /* This relocation describes the C++ object vtable hierarchy.
6243 Reconstruct it for later use during GC. */
6244 case R_FRV_GNU_VTINHERIT:
6245 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6246 return FALSE;
6247 break;
6248
6249 /* This relocation describes which C++ vtable entries are actually
6250 used. Record for later use during GC. */
6251 case R_FRV_GNU_VTENTRY:
6252 BFD_ASSERT (h != NULL);
6253 if (h != NULL
6254 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6255 return FALSE;
6256 break;
6257
6258 case R_FRV_LABEL16:
6259 case R_FRV_LO16:
6260 case R_FRV_HI16:
6261 case R_FRV_GPREL12:
6262 case R_FRV_GPRELU12:
6263 case R_FRV_GPREL32:
6264 case R_FRV_GPRELHI:
6265 case R_FRV_GPRELLO:
6266 case R_FRV_TLSDESC_RELAX:
6267 case R_FRV_GETTLSOFF_RELAX:
6268 case R_FRV_TLSOFF_RELAX:
6269 break;
6270
6271 default:
6272 bad_reloc:
6273 info->callbacks->einfo
6274 /* xgettext:c-format */
6275 (_("%B: unsupported relocation type %i\n"),
6276 abfd, ELF32_R_TYPE (rel->r_info));
6277 return FALSE;
6278 }
6279 }
6280
6281 return TRUE;
6282 }
6283
6284 \f
6285 /* Return the machine subcode from the ELF e_flags header. */
6286
6287 static int
6288 elf32_frv_machine (bfd *abfd)
6289 {
6290 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6291 {
6292 default: break;
6293 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6294 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6295 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6296 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6297 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6298 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6299 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6300 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6301 }
6302
6303 return bfd_mach_frv;
6304 }
6305
6306 /* Set the right machine number for a FRV ELF file. */
6307
6308 static bfd_boolean
6309 elf32_frv_object_p (bfd *abfd)
6310 {
6311 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6312 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6313 == (IS_FDPIC (abfd)));
6314 }
6315 \f
6316 /* Function to set the ELF flag bits. */
6317
6318 static bfd_boolean
6319 frv_elf_set_private_flags (bfd *abfd, flagword flags)
6320 {
6321 elf_elfheader (abfd)->e_flags = flags;
6322 elf_flags_init (abfd) = TRUE;
6323 return TRUE;
6324 }
6325
6326 /* Return true if the architecture described by elf header flag
6327 EXTENSION is an extension of the architecture described by BASE. */
6328
6329 static bfd_boolean
6330 frv_elf_arch_extension_p (flagword base, flagword extension)
6331 {
6332 if (base == extension)
6333 return TRUE;
6334
6335 /* CPU_GENERIC code can be merged with code for a specific
6336 architecture, in which case the result is marked as being
6337 for the specific architecture. Everything is therefore
6338 an extension of CPU_GENERIC. */
6339 if (base == EF_FRV_CPU_GENERIC)
6340 return TRUE;
6341
6342 if (extension == EF_FRV_CPU_FR450)
6343 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6344 return TRUE;
6345
6346 if (extension == EF_FRV_CPU_FR405)
6347 if (base == EF_FRV_CPU_FR400)
6348 return TRUE;
6349
6350 return FALSE;
6351 }
6352
6353 /* Merge backend specific data from an object file to the output
6354 object file when linking. */
6355
6356 static bfd_boolean
6357 frv_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
6358 {
6359 bfd *obfd = info->output_bfd;
6360 flagword old_flags, old_partial;
6361 flagword new_flags, new_partial;
6362 bfd_boolean error = FALSE;
6363 char new_opt[80];
6364 char old_opt[80];
6365
6366 new_opt[0] = old_opt[0] = '\0';
6367 new_flags = elf_elfheader (ibfd)->e_flags;
6368 old_flags = elf_elfheader (obfd)->e_flags;
6369
6370 if (new_flags & EF_FRV_FDPIC)
6371 new_flags &= ~EF_FRV_PIC;
6372
6373 #ifdef DEBUG
6374 _bfd_error_handler
6375 ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6376 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6377 bfd_get_filename (ibfd));
6378 #endif
6379
6380 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6381 {
6382 elf_flags_init (obfd) = TRUE;
6383 old_flags = new_flags;
6384 }
6385
6386 else if (new_flags == old_flags) /* Compatible flags are ok. */
6387 ;
6388
6389 else /* Possibly incompatible flags. */
6390 {
6391 /* Warn if different # of gprs are used. Note, 0 means nothing is
6392 said about the size of gprs. */
6393 new_partial = (new_flags & EF_FRV_GPR_MASK);
6394 old_partial = (old_flags & EF_FRV_GPR_MASK);
6395 if (new_partial == old_partial)
6396 ;
6397
6398 else if (new_partial == 0)
6399 ;
6400
6401 else if (old_partial == 0)
6402 old_flags |= new_partial;
6403
6404 else
6405 {
6406 switch (new_partial)
6407 {
6408 default: strcat (new_opt, " -mgpr-??"); break;
6409 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6410 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6411 }
6412
6413 switch (old_partial)
6414 {
6415 default: strcat (old_opt, " -mgpr-??"); break;
6416 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6417 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6418 }
6419 }
6420
6421 /* Warn if different # of fprs are used. Note, 0 means nothing is
6422 said about the size of fprs. */
6423 new_partial = (new_flags & EF_FRV_FPR_MASK);
6424 old_partial = (old_flags & EF_FRV_FPR_MASK);
6425 if (new_partial == old_partial)
6426 ;
6427
6428 else if (new_partial == 0)
6429 ;
6430
6431 else if (old_partial == 0)
6432 old_flags |= new_partial;
6433
6434 else
6435 {
6436 switch (new_partial)
6437 {
6438 default: strcat (new_opt, " -mfpr-?"); break;
6439 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6440 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6441 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6442 }
6443
6444 switch (old_partial)
6445 {
6446 default: strcat (old_opt, " -mfpr-?"); break;
6447 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6448 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6449 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6450 }
6451 }
6452
6453 /* Warn if different dword support was used. Note, 0 means nothing is
6454 said about the dword support. */
6455 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6456 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6457 if (new_partial == old_partial)
6458 ;
6459
6460 else if (new_partial == 0)
6461 ;
6462
6463 else if (old_partial == 0)
6464 old_flags |= new_partial;
6465
6466 else
6467 {
6468 switch (new_partial)
6469 {
6470 default: strcat (new_opt, " -mdword-?"); break;
6471 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6472 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6473 }
6474
6475 switch (old_partial)
6476 {
6477 default: strcat (old_opt, " -mdword-?"); break;
6478 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6479 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6480 }
6481 }
6482
6483 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6484 feature is used. */
6485 old_flags |= new_flags & (EF_FRV_DOUBLE
6486 | EF_FRV_MEDIA
6487 | EF_FRV_MULADD
6488 | EF_FRV_NON_PIC_RELOCS);
6489
6490 /* If any module was compiled without -G0, clear the G0 bit. */
6491 old_flags = ((old_flags & ~ EF_FRV_G0)
6492 | (old_flags & new_flags & EF_FRV_G0));
6493
6494 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6495 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6496 | (old_flags & new_flags & EF_FRV_NOPACK));
6497
6498 /* We don't have to do anything if the pic flags are the same, or the new
6499 module(s) were compiled with -mlibrary-pic. */
6500 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6501 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6502 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6503 ;
6504
6505 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6506 flags if any from the new module. */
6507 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6508 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6509
6510 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6511 else if (new_partial != 0 && old_partial != 0)
6512 old_flags |= new_partial;
6513
6514 /* One module was compiled for pic and the other was not, see if we have
6515 had any relocations that are not pic-safe. */
6516 else
6517 {
6518 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6519 old_flags |= new_partial;
6520 else
6521 {
6522 old_flags &= ~ EF_FRV_PIC_FLAGS;
6523 #ifndef FRV_NO_PIC_ERROR
6524 error = TRUE;
6525 _bfd_error_handler
6526 /* xgettext:c-format */
6527 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6528 bfd_get_filename (ibfd),
6529 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6530 #endif
6531 }
6532 }
6533
6534 /* Warn if different cpu is used (allow a specific cpu to override
6535 the generic cpu). */
6536 new_partial = (new_flags & EF_FRV_CPU_MASK);
6537 old_partial = (old_flags & EF_FRV_CPU_MASK);
6538 if (frv_elf_arch_extension_p (new_partial, old_partial))
6539 ;
6540
6541 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6542 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6543
6544 else
6545 {
6546 switch (new_partial)
6547 {
6548 default: strcat (new_opt, " -mcpu=?"); break;
6549 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6550 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6551 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6552 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6553 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6554 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6555 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6556 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6557 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6558 }
6559
6560 switch (old_partial)
6561 {
6562 default: strcat (old_opt, " -mcpu=?"); break;
6563 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6564 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6565 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6566 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6567 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6568 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6569 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6570 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6571 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6572 }
6573 }
6574
6575 /* Print out any mismatches from above. */
6576 if (new_opt[0])
6577 {
6578 error = TRUE;
6579 _bfd_error_handler
6580 /* xgettext:c-format */
6581 (_("%s: compiled with %s and linked with modules compiled with %s"),
6582 bfd_get_filename (ibfd), new_opt, old_opt);
6583 }
6584
6585 /* Warn about any other mismatches */
6586 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6587 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6588 if (new_partial != old_partial)
6589 {
6590 old_flags |= new_partial;
6591 error = TRUE;
6592 _bfd_error_handler
6593 /* xgettext:c-format */
6594 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6595 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6596 }
6597 }
6598
6599 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6600 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6601 old_flags |= EF_FRV_NOPACK;
6602
6603 /* Update the old flags now with changes made above. */
6604 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6605 elf_elfheader (obfd)->e_flags = old_flags;
6606 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6607 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6608
6609 if (((new_flags & EF_FRV_FDPIC) == 0)
6610 != (! IS_FDPIC (ibfd)))
6611 {
6612 error = TRUE;
6613 if (IS_FDPIC (obfd))
6614 _bfd_error_handler
6615 (_("%s: cannot link non-fdpic object file into fdpic executable"),
6616 bfd_get_filename (ibfd));
6617 else
6618 _bfd_error_handler
6619 (_("%s: cannot link fdpic object file into non-fdpic executable"),
6620 bfd_get_filename (ibfd));
6621 }
6622
6623 if (error)
6624 bfd_set_error (bfd_error_bad_value);
6625
6626 return !error;
6627 }
6628
6629 \f
6630 static bfd_boolean
6631 frv_elf_print_private_bfd_data (bfd *abfd, void * ptr)
6632 {
6633 FILE *file = (FILE *) ptr;
6634 flagword flags;
6635
6636 BFD_ASSERT (abfd != NULL && ptr != NULL);
6637
6638 /* Print normal ELF private data. */
6639 _bfd_elf_print_private_bfd_data (abfd, ptr);
6640
6641 flags = elf_elfheader (abfd)->e_flags;
6642 fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6643
6644 switch (flags & EF_FRV_CPU_MASK)
6645 {
6646 default: break;
6647 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6648 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6649 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6650 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6651 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6652 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6653 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6654 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6655 }
6656
6657 switch (flags & EF_FRV_GPR_MASK)
6658 {
6659 default: break;
6660 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6661 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6662 }
6663
6664 switch (flags & EF_FRV_FPR_MASK)
6665 {
6666 default: break;
6667 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6668 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6669 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6670 }
6671
6672 switch (flags & EF_FRV_DWORD_MASK)
6673 {
6674 default: break;
6675 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6676 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6677 }
6678
6679 if (flags & EF_FRV_DOUBLE)
6680 fprintf (file, " -mdouble");
6681
6682 if (flags & EF_FRV_MEDIA)
6683 fprintf (file, " -mmedia");
6684
6685 if (flags & EF_FRV_MULADD)
6686 fprintf (file, " -mmuladd");
6687
6688 if (flags & EF_FRV_PIC)
6689 fprintf (file, " -fpic");
6690
6691 if (flags & EF_FRV_BIGPIC)
6692 fprintf (file, " -fPIC");
6693
6694 if (flags & EF_FRV_LIBPIC)
6695 fprintf (file, " -mlibrary-pic");
6696
6697 if (flags & EF_FRV_FDPIC)
6698 fprintf (file, " -mfdpic");
6699
6700 if (flags & EF_FRV_NON_PIC_RELOCS)
6701 fprintf (file, " non-pic relocations");
6702
6703 if (flags & EF_FRV_G0)
6704 fprintf (file, " -G0");
6705
6706 fputc ('\n', file);
6707 return TRUE;
6708 }
6709
6710 \f
6711 /* Support for core dump NOTE sections. */
6712
6713 static bfd_boolean
6714 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6715 {
6716 int offset;
6717 unsigned int raw_size;
6718
6719 switch (note->descsz)
6720 {
6721 default:
6722 return FALSE;
6723
6724 /* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
6725 hardcoded offsets and sizes listed below (and contained within
6726 this lexical block) refer to fields in the target's elf_prstatus
6727 struct. */
6728 case 268:
6729 /* `pr_cursig' is at offset 12. */
6730 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6731
6732 /* `pr_pid' is at offset 24. */
6733 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6734
6735 /* `pr_reg' is at offset 72. */
6736 offset = 72;
6737
6738 /* Most grok_prstatus implementations set `raw_size' to the size
6739 of the pr_reg field. For Linux/FRV, we set `raw_size' to be
6740 the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6741 and `pr_interp_fdpic_loadmap', both of which (by design)
6742 immediately follow `pr_reg'. This will allow these fields to
6743 be viewed by GDB as registers.
6744
6745 `pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
6746 `pr_interp_fdpic_loadmap' are 4 bytes each. */
6747 raw_size = 184 + 4 + 4;
6748
6749 break;
6750 }
6751
6752 /* Make a ".reg/999" section. */
6753 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6754 note->descpos + offset);
6755 }
6756
6757 static bfd_boolean
6758 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6759 {
6760 switch (note->descsz)
6761 {
6762 default:
6763 return FALSE;
6764
6765 /* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
6766 case 124:
6767
6768 /* `pr_fname' is found at offset 28 and is 16 bytes long. */
6769 elf_tdata (abfd)->core->program
6770 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6771
6772 /* `pr_psargs' is found at offset 44 and is 80 bytes long. */
6773 elf_tdata (abfd)->core->command
6774 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6775 }
6776
6777 /* Note that for some reason, a spurious space is tacked
6778 onto the end of the args in some (at least one anyway)
6779 implementations, so strip it off if it exists. */
6780
6781 {
6782 char *command = elf_tdata (abfd)->core->command;
6783 int n = strlen (command);
6784
6785 if (0 < n && command[n - 1] == ' ')
6786 command[n - 1] = '\0';
6787 }
6788
6789 return TRUE;
6790 }
6791 #define ELF_ARCH bfd_arch_frv
6792 #define ELF_TARGET_ID FRV_ELF_DATA
6793 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
6794 #define ELF_MAXPAGESIZE 0x1000
6795
6796 #define TARGET_BIG_SYM frv_elf32_vec
6797 #define TARGET_BIG_NAME "elf32-frv"
6798
6799 #define elf_info_to_howto frv_info_to_howto_rela
6800 #define elf_backend_relocate_section elf32_frv_relocate_section
6801 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
6802 #define elf_backend_check_relocs elf32_frv_check_relocs
6803 #define elf_backend_object_p elf32_frv_object_p
6804 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
6805
6806 #define elf_backend_stack_align 8
6807 #define elf_backend_can_gc_sections 1
6808 #define elf_backend_rela_normal 1
6809
6810 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
6811 #define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
6812 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
6813 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
6814 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
6815
6816 #define elf_backend_want_got_sym 1
6817 #define elf_backend_got_header_size 0
6818 #define elf_backend_want_got_plt 0
6819 #define elf_backend_plt_readonly 1
6820 #define elf_backend_want_plt_sym 0
6821 #define elf_backend_plt_header_size 0
6822
6823 #define elf_backend_finish_dynamic_sections \
6824 elf32_frv_finish_dynamic_sections
6825
6826 #define elf_backend_grok_prstatus elf32_frv_grok_prstatus
6827 #define elf_backend_grok_psinfo elf32_frv_grok_psinfo
6828
6829 #include "elf32-target.h"
6830
6831 #undef ELF_MAXPAGESIZE
6832 #define ELF_MAXPAGESIZE 0x4000
6833
6834 #undef TARGET_BIG_SYM
6835 #define TARGET_BIG_SYM frv_elf32_fdpic_vec
6836 #undef TARGET_BIG_NAME
6837 #define TARGET_BIG_NAME "elf32-frvfdpic"
6838 #undef elf32_bed
6839 #define elf32_bed elf32_frvfdpic_bed
6840
6841 #undef elf_info_to_howto_rel
6842 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
6843
6844 #undef bfd_elf32_bfd_link_hash_table_create
6845 #define bfd_elf32_bfd_link_hash_table_create \
6846 frvfdpic_elf_link_hash_table_create
6847 #undef elf_backend_always_size_sections
6848 #define elf_backend_always_size_sections \
6849 elf32_frvfdpic_always_size_sections
6850
6851 #undef elf_backend_create_dynamic_sections
6852 #define elf_backend_create_dynamic_sections \
6853 elf32_frvfdpic_create_dynamic_sections
6854 #undef elf_backend_adjust_dynamic_symbol
6855 #define elf_backend_adjust_dynamic_symbol \
6856 elf32_frvfdpic_adjust_dynamic_symbol
6857 #undef elf_backend_size_dynamic_sections
6858 #define elf_backend_size_dynamic_sections \
6859 elf32_frvfdpic_size_dynamic_sections
6860 #undef bfd_elf32_bfd_relax_section
6861 #define bfd_elf32_bfd_relax_section \
6862 elf32_frvfdpic_relax_section
6863 #undef elf_backend_finish_dynamic_symbol
6864 #define elf_backend_finish_dynamic_symbol \
6865 elf32_frvfdpic_finish_dynamic_symbol
6866 #undef elf_backend_finish_dynamic_sections
6867 #define elf_backend_finish_dynamic_sections \
6868 elf32_frvfdpic_finish_dynamic_sections
6869
6870 #undef elf_backend_discard_info
6871 #define elf_backend_discard_info \
6872 frvfdpic_elf_discard_info
6873 #undef elf_backend_can_make_relative_eh_frame
6874 #define elf_backend_can_make_relative_eh_frame \
6875 frvfdpic_elf_use_relative_eh_frame
6876 #undef elf_backend_can_make_lsda_relative_eh_frame
6877 #define elf_backend_can_make_lsda_relative_eh_frame \
6878 frvfdpic_elf_use_relative_eh_frame
6879 #undef elf_backend_encode_eh_address
6880 #define elf_backend_encode_eh_address \
6881 frvfdpic_elf_encode_eh_address
6882
6883 #undef elf_backend_may_use_rel_p
6884 #define elf_backend_may_use_rel_p 1
6885 #undef elf_backend_may_use_rela_p
6886 #define elf_backend_may_use_rela_p 1
6887 /* We use REL for dynamic relocations only. */
6888 #undef elf_backend_default_use_rela_p
6889 #define elf_backend_default_use_rela_p 1
6890
6891 #undef elf_backend_omit_section_dynsym
6892 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
6893
6894 #include "elf32-target.h"
GDB Binutils - Deliverables
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