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[deliverable/binutils-gdb.git] / bfd / elf32-frv.c
1 /* FRV-specific support for 32-bit ELF.
2 Copyright (C) 2002-2015 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_executable (info) && !bfd_link_pic (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_executable (info) && !bfd_link_pic (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_executable (info) && !bfd_link_pic (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_executable (info) && !bfd_link_pic (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_executable (info)
1597 && !bfd_link_pic (info)
1598 && sec
1599 && sec->output_section)
1600 {
1601 lowword = ad;
1602 highword = frvfdpic_got_section (info)->output_section->vma
1603 + frvfdpic_got_section (info)->output_offset
1604 + frvfdpic_got_initial_offset (info);
1605 }
1606 else if (entry->lazyplt)
1607 {
1608 if (ad)
1609 {
1610 (*info->callbacks->reloc_dangerous)
1611 (info, _("relocation requires zero addend"),
1612 elf_hash_table (info)->dynobj,
1613 frvfdpic_got_section (info),
1614 entry->fd_entry);
1615 return FALSE;
1616 }
1617
1618 fd_lazy_rel_offset = ofst;
1619
1620 /* A function descriptor used for lazy or local resolving is
1621 initialized such that its high word contains the output
1622 section index in which the PLT entries are located, and
1623 the low word contains the address of the lazy PLT entry
1624 entry point, that must be within the memory region
1625 assigned to that section. */
1626 lowword = entry->lzplt_entry + 4
1627 + frvfdpic_plt_section (info)->output_offset
1628 + frvfdpic_plt_section (info)->output_section->vma;
1629 highword = _frvfdpic_osec_to_segment
1630 (output_bfd, frvfdpic_plt_section (info)->output_section);
1631 }
1632 else
1633 {
1634 /* A function descriptor for a local function gets the index
1635 of the section. For a non-local function, it's
1636 disregarded. */
1637 lowword = ad;
1638 if (sec == NULL
1639 || (entry->symndx == -1 && entry->d.h->dynindx != -1
1640 && entry->d.h->dynindx == idx))
1641 highword = 0;
1642 else
1643 highword = _frvfdpic_osec_to_segment
1644 (output_bfd, sec->output_section);
1645 }
1646
1647 bfd_put_32 (output_bfd, lowword,
1648 frvfdpic_got_section (info)->contents
1649 + frvfdpic_got_initial_offset (info)
1650 + entry->fd_entry);
1651 bfd_put_32 (output_bfd, highword,
1652 frvfdpic_got_section (info)->contents
1653 + frvfdpic_got_initial_offset (info)
1654 + entry->fd_entry + 4);
1655 }
1656
1657 /* Generate code for the PLT entry. */
1658 if (entry->plt_entry != (bfd_vma) -1)
1659 {
1660 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1661 + entry->plt_entry;
1662
1663 BFD_ASSERT (entry->fd_entry);
1664
1665 /* Figure out what kind of PLT entry we need, depending on the
1666 location of the function descriptor within the GOT. */
1667 if (entry->fd_entry >= -(1 << (12 - 1))
1668 && entry->fd_entry < (1 << (12 - 1)))
1669 {
1670 /* lddi @(gr15, fd_entry), gr14 */
1671 bfd_put_32 (output_bfd,
1672 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1673 plt_code);
1674 plt_code += 4;
1675 }
1676 else
1677 {
1678 if (entry->fd_entry >= -(1 << (16 - 1))
1679 && entry->fd_entry < (1 << (16 - 1)))
1680 {
1681 /* setlos lo(fd_entry), gr14 */
1682 bfd_put_32 (output_bfd,
1683 0x9cfc0000
1684 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1685 plt_code);
1686 plt_code += 4;
1687 }
1688 else
1689 {
1690 /* sethi.p hi(fd_entry), gr14
1691 setlo lo(fd_entry), gr14 */
1692 bfd_put_32 (output_bfd,
1693 0x1cf80000
1694 | ((entry->fd_entry >> 16)
1695 & (((bfd_vma)1 << 16) - 1)),
1696 plt_code);
1697 plt_code += 4;
1698 bfd_put_32 (output_bfd,
1699 0x9cf40000
1700 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1701 plt_code);
1702 plt_code += 4;
1703 }
1704 /* ldd @(gr14,gr15),gr14 */
1705 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1706 plt_code += 4;
1707 }
1708 /* jmpl @(gr14,gr0) */
1709 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1710 }
1711
1712 /* Generate code for the lazy PLT entry. */
1713 if (entry->lzplt_entry != (bfd_vma) -1)
1714 {
1715 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1716 + entry->lzplt_entry;
1717 bfd_vma resolverStub_addr;
1718
1719 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1720 lzplt_code += 4;
1721
1722 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1723 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1724 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1725 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1726
1727 if (entry->lzplt_entry == resolverStub_addr)
1728 {
1729 /* This is a lazy PLT entry that includes a resolver call. */
1730 /* ldd @(gr15,gr0), gr4
1731 jmpl @(gr4,gr0) */
1732 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1733 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1734 }
1735 else
1736 {
1737 /* bra resolverStub */
1738 bfd_put_32 (output_bfd,
1739 0xc01a0000
1740 | (((resolverStub_addr - entry->lzplt_entry)
1741 / 4) & (((bfd_vma)1 << 16) - 1)),
1742 lzplt_code);
1743 }
1744 }
1745
1746 /* Generate relocation for GOT entry holding the TLS offset. */
1747 if (entry->tlsoff_entry)
1748 {
1749 int idx = dynindx;
1750 bfd_vma ad = addend;
1751
1752 if (entry->symndx != -1
1753 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1754 {
1755 /* If the symbol is dynamic but binds locally, use
1756 section+offset. */
1757 if (sec)
1758 {
1759 if (entry->symndx == -1)
1760 ad += entry->d.h->root.u.def.value;
1761 else
1762 ad += sym->st_value;
1763 ad += sec->output_offset;
1764 if (sec->output_section
1765 && elf_section_data (sec->output_section))
1766 idx = elf_section_data (sec->output_section)->dynindx;
1767 else
1768 idx = 0;
1769 }
1770 }
1771
1772 /* *ABS*+addend is special for TLS relocations, use only the
1773 addend. */
1774 if (bfd_link_executable (info)
1775 && idx == 0
1776 && (bfd_is_abs_section (sec)
1777 || bfd_is_und_section (sec)))
1778 ;
1779 /* If we're linking an executable, we can entirely omit the
1780 dynamic relocation if the symbol is local to this module. */
1781 else if (bfd_link_executable (info)
1782 && (entry->symndx != -1
1783 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1784 {
1785 if (sec)
1786 ad += sec->output_section->vma - tls_biased_base (info);
1787 }
1788 else
1789 {
1790 if (idx == 0
1791 && (bfd_is_abs_section (sec)
1792 || bfd_is_und_section (sec)))
1793 {
1794 if (! elf_hash_table (info)->tls_sec)
1795 {
1796 (*info->callbacks->undefined_symbol)
1797 (info, "TLS section", elf_hash_table (info)->dynobj,
1798 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1799 return FALSE;
1800 }
1801 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1802 ad += FRVFDPIC_TLS_BIAS;
1803 }
1804 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1805 _bfd_elf_section_offset
1806 (output_bfd, info,
1807 frvfdpic_got_section (info),
1808 frvfdpic_got_initial_offset (info)
1809 + entry->tlsoff_entry)
1810 + frvfdpic_got_section (info)
1811 ->output_section->vma
1812 + frvfdpic_got_section (info)
1813 ->output_offset,
1814 R_FRV_TLSOFF, idx, ad, entry);
1815 }
1816
1817 bfd_put_32 (output_bfd, ad,
1818 frvfdpic_got_section (info)->contents
1819 + frvfdpic_got_initial_offset (info)
1820 + entry->tlsoff_entry);
1821 }
1822
1823 if (entry->tlsdesc_entry)
1824 {
1825 int idx = dynindx;
1826 bfd_vma ad = addend;
1827
1828 /* If the symbol is dynamic but binds locally, use
1829 section+offset. */
1830 if (sec && (entry->symndx != -1
1831 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1832 {
1833 if (entry->symndx == -1)
1834 ad += entry->d.h->root.u.def.value;
1835 else
1836 ad += sym->st_value;
1837 ad += sec->output_offset;
1838 if (sec->output_section && elf_section_data (sec->output_section))
1839 idx = elf_section_data (sec->output_section)->dynindx;
1840 else
1841 idx = 0;
1842 }
1843
1844 /* If we didn't set up a TLS offset entry, but we're linking an
1845 executable and the symbol binds locally, we can use the
1846 module offset in the TLS descriptor in relaxations. */
1847 if (bfd_link_executable (info) && ! entry->tlsoff_entry)
1848 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1849
1850 if (bfd_link_executable (info) && !bfd_link_pic (info)
1851 && ((idx == 0
1852 && (bfd_is_abs_section (sec)
1853 || bfd_is_und_section (sec)))
1854 || entry->symndx != -1
1855 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1856 {
1857 /* *ABS*+addend is special for TLS relocations, use only the
1858 addend for the TLS offset, and take the module id as
1859 0. */
1860 if (idx == 0
1861 && (bfd_is_abs_section (sec)
1862 || bfd_is_und_section (sec)))
1863 ;
1864 /* For other TLS symbols that bind locally, add the section
1865 TLS offset to the addend. */
1866 else if (sec)
1867 ad += sec->output_section->vma - tls_biased_base (info);
1868
1869 bfd_put_32 (output_bfd,
1870 frvfdpic_plt_section (info)->output_section->vma
1871 + frvfdpic_plt_section (info)->output_offset
1872 + frvfdpic_plt_tls_ret_offset (info),
1873 frvfdpic_got_section (info)->contents
1874 + frvfdpic_got_initial_offset (info)
1875 + entry->tlsdesc_entry);
1876
1877 _frvfdpic_add_rofixup (output_bfd,
1878 frvfdpic_gotfixup_section (info),
1879 frvfdpic_got_section (info)
1880 ->output_section->vma
1881 + frvfdpic_got_section (info)
1882 ->output_offset
1883 + frvfdpic_got_initial_offset (info)
1884 + entry->tlsdesc_entry, entry);
1885
1886 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1887
1888 /* We've used one of the reserved fixups, so discount it so
1889 that we can check at the end that we've used them
1890 all. */
1891 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1892
1893 /* While at that, make sure the ret instruction makes to the
1894 right location in the PLT. We could do it only when we
1895 got to 0, but since the check at the end will only print
1896 a warning, make sure we have the ret in place in case the
1897 warning is missed. */
1898 bfd_put_32 (output_bfd, 0xc03a4000,
1899 frvfdpic_plt_section (info)->contents
1900 + frvfdpic_plt_tls_ret_offset (info));
1901 }
1902 else
1903 {
1904 if (idx == 0
1905 && (bfd_is_abs_section (sec)
1906 || bfd_is_und_section (sec)))
1907 {
1908 if (! elf_hash_table (info)->tls_sec)
1909 {
1910 (*info->callbacks->undefined_symbol)
1911 (info, "TLS section", elf_hash_table (info)->dynobj,
1912 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1913 return FALSE;
1914 }
1915 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1916 ad += FRVFDPIC_TLS_BIAS;
1917 }
1918
1919 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1920 _bfd_elf_section_offset
1921 (output_bfd, info,
1922 frvfdpic_got_section (info),
1923 frvfdpic_got_initial_offset (info)
1924 + entry->tlsdesc_entry)
1925 + frvfdpic_got_section (info)
1926 ->output_section->vma
1927 + frvfdpic_got_section (info)
1928 ->output_offset,
1929 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1930
1931 bfd_put_32 (output_bfd, 0,
1932 frvfdpic_got_section (info)->contents
1933 + frvfdpic_got_initial_offset (info)
1934 + entry->tlsdesc_entry);
1935 }
1936
1937 bfd_put_32 (output_bfd, ad,
1938 frvfdpic_got_section (info)->contents
1939 + frvfdpic_got_initial_offset (info)
1940 + entry->tlsdesc_entry + 4);
1941 }
1942
1943 /* Generate code for the get-TLS-offset PLT entry. */
1944 if (entry->tlsplt_entry != (bfd_vma) -1)
1945 {
1946 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1947 + entry->tlsplt_entry;
1948
1949 if (bfd_link_executable (info)
1950 && (entry->symndx != -1
1951 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1952 {
1953 int idx = dynindx;
1954 bfd_vma ad = addend;
1955
1956 /* sec may be NULL when referencing an undefweak symbol
1957 while linking a static executable. */
1958 if (!sec)
1959 {
1960 BFD_ASSERT (entry->symndx == -1
1961 && entry->d.h->root.type == bfd_link_hash_undefweak);
1962 }
1963 else
1964 {
1965 if (entry->symndx == -1)
1966 ad += entry->d.h->root.u.def.value;
1967 else
1968 ad += sym->st_value;
1969 ad += sec->output_offset;
1970 if (sec->output_section
1971 && elf_section_data (sec->output_section))
1972 idx = elf_section_data (sec->output_section)->dynindx;
1973 else
1974 idx = 0;
1975 }
1976
1977 /* *ABS*+addend is special for TLS relocations, use only the
1978 addend for the TLS offset, and take the module id as
1979 0. */
1980 if (idx == 0
1981 && (bfd_is_abs_section (sec)
1982 || bfd_is_und_section (sec)))
1983 ;
1984 /* For other TLS symbols that bind locally, add the section
1985 TLS offset to the addend. */
1986 else if (sec)
1987 ad += sec->output_section->vma - tls_biased_base (info);
1988
1989 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
1990 && (bfd_signed_vma)ad < (1 << (16 - 1)))
1991 {
1992 /* setlos lo(ad), gr9 */
1993 bfd_put_32 (output_bfd,
1994 0x92fc0000
1995 | (ad
1996 & (((bfd_vma)1 << 16) - 1)),
1997 plt_code);
1998 plt_code += 4;
1999 }
2000 else
2001 {
2002 /* sethi.p hi(ad), gr9
2003 setlo lo(ad), gr9 */
2004 bfd_put_32 (output_bfd,
2005 0x12f80000
2006 | ((ad >> 16)
2007 & (((bfd_vma)1 << 16) - 1)),
2008 plt_code);
2009 plt_code += 4;
2010 bfd_put_32 (output_bfd,
2011 0x92f40000
2012 | (ad
2013 & (((bfd_vma)1 << 16) - 1)),
2014 plt_code);
2015 plt_code += 4;
2016 }
2017 /* ret */
2018 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2019 }
2020 else if (entry->tlsoff_entry)
2021 {
2022 /* Figure out what kind of PLT entry we need, depending on the
2023 location of the TLS descriptor within the GOT. */
2024 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2025 && entry->tlsoff_entry < (1 << (12 - 1)))
2026 {
2027 /* ldi @(gr15, tlsoff_entry), gr9 */
2028 bfd_put_32 (output_bfd,
2029 0x92c8f000 | (entry->tlsoff_entry
2030 & ((1 << 12) - 1)),
2031 plt_code);
2032 plt_code += 4;
2033 }
2034 else
2035 {
2036 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2037 && entry->tlsoff_entry < (1 << (16 - 1)))
2038 {
2039 /* setlos lo(tlsoff_entry), gr8 */
2040 bfd_put_32 (output_bfd,
2041 0x90fc0000
2042 | (entry->tlsoff_entry
2043 & (((bfd_vma)1 << 16) - 1)),
2044 plt_code);
2045 plt_code += 4;
2046 }
2047 else
2048 {
2049 /* sethi.p hi(tlsoff_entry), gr8
2050 setlo lo(tlsoff_entry), gr8 */
2051 bfd_put_32 (output_bfd,
2052 0x10f80000
2053 | ((entry->tlsoff_entry >> 16)
2054 & (((bfd_vma)1 << 16) - 1)),
2055 plt_code);
2056 plt_code += 4;
2057 bfd_put_32 (output_bfd,
2058 0x90f40000
2059 | (entry->tlsoff_entry
2060 & (((bfd_vma)1 << 16) - 1)),
2061 plt_code);
2062 plt_code += 4;
2063 }
2064 /* ld @(gr15,gr8),gr9 */
2065 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2066 plt_code += 4;
2067 }
2068 /* ret */
2069 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2070 }
2071 else
2072 {
2073 BFD_ASSERT (entry->tlsdesc_entry);
2074
2075 /* Figure out what kind of PLT entry we need, depending on the
2076 location of the TLS descriptor within the GOT. */
2077 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2078 && entry->tlsdesc_entry < (1 << (12 - 1)))
2079 {
2080 /* lddi @(gr15, tlsdesc_entry), gr8 */
2081 bfd_put_32 (output_bfd,
2082 0x90ccf000 | (entry->tlsdesc_entry
2083 & ((1 << 12) - 1)),
2084 plt_code);
2085 plt_code += 4;
2086 }
2087 else
2088 {
2089 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2090 && entry->tlsdesc_entry < (1 << (16 - 1)))
2091 {
2092 /* setlos lo(tlsdesc_entry), gr8 */
2093 bfd_put_32 (output_bfd,
2094 0x90fc0000
2095 | (entry->tlsdesc_entry
2096 & (((bfd_vma)1 << 16) - 1)),
2097 plt_code);
2098 plt_code += 4;
2099 }
2100 else
2101 {
2102 /* sethi.p hi(tlsdesc_entry), gr8
2103 setlo lo(tlsdesc_entry), gr8 */
2104 bfd_put_32 (output_bfd,
2105 0x10f80000
2106 | ((entry->tlsdesc_entry >> 16)
2107 & (((bfd_vma)1 << 16) - 1)),
2108 plt_code);
2109 plt_code += 4;
2110 bfd_put_32 (output_bfd,
2111 0x90f40000
2112 | (entry->tlsdesc_entry
2113 & (((bfd_vma)1 << 16) - 1)),
2114 plt_code);
2115 plt_code += 4;
2116 }
2117 /* ldd @(gr15,gr8),gr8 */
2118 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2119 plt_code += 4;
2120 }
2121 /* jmpl @(gr8,gr0) */
2122 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2123 }
2124 }
2125
2126 return TRUE;
2127 }
2128
2129 /* Handle an FRV small data reloc. */
2130
2131 static bfd_reloc_status_type
2132 elf32_frv_relocate_gprel12 (struct bfd_link_info *info,
2133 bfd *input_bfd,
2134 asection *input_section,
2135 Elf_Internal_Rela *relocation,
2136 bfd_byte *contents,
2137 bfd_vma value)
2138 {
2139 bfd_vma insn;
2140 bfd_vma gp;
2141 struct bfd_link_hash_entry *h;
2142
2143 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2144
2145 gp = (h->u.def.value
2146 + h->u.def.section->output_section->vma
2147 + h->u.def.section->output_offset);
2148
2149 value -= input_section->output_section->vma;
2150 value -= (gp - input_section->output_section->vma);
2151
2152 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2153
2154 value += relocation->r_addend;
2155
2156 if ((long) value > 0x7ff || (long) value < -0x800)
2157 return bfd_reloc_overflow;
2158
2159 bfd_put_32 (input_bfd,
2160 (insn & 0xfffff000) | (value & 0xfff),
2161 contents + relocation->r_offset);
2162
2163 return bfd_reloc_ok;
2164 }
2165
2166 /* Handle an FRV small data reloc. for the u12 field. */
2167
2168 static bfd_reloc_status_type
2169 elf32_frv_relocate_gprelu12 (struct bfd_link_info *info,
2170 bfd *input_bfd,
2171 asection *input_section,
2172 Elf_Internal_Rela *relocation,
2173 bfd_byte *contents,
2174 bfd_vma value)
2175 {
2176 bfd_vma insn;
2177 bfd_vma gp;
2178 struct bfd_link_hash_entry *h;
2179 bfd_vma mask;
2180
2181 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2182
2183 gp = (h->u.def.value
2184 + h->u.def.section->output_section->vma
2185 + h->u.def.section->output_offset);
2186
2187 value -= input_section->output_section->vma;
2188 value -= (gp - input_section->output_section->vma);
2189
2190 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2191
2192 value += relocation->r_addend;
2193
2194 if ((long) value > 0x7ff || (long) value < -0x800)
2195 return bfd_reloc_overflow;
2196
2197 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2198 mask = 0x3f03f;
2199 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2200
2201 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2202
2203 return bfd_reloc_ok;
2204 }
2205
2206 /* Handle an FRV ELF HI16 reloc. */
2207
2208 static bfd_reloc_status_type
2209 elf32_frv_relocate_hi16 (bfd *input_bfd,
2210 Elf_Internal_Rela *relhi,
2211 bfd_byte *contents,
2212 bfd_vma value)
2213 {
2214 bfd_vma insn;
2215
2216 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2217
2218 value += relhi->r_addend;
2219 value = ((value >> 16) & 0xffff);
2220
2221 insn = (insn & 0xffff0000) | value;
2222
2223 if ((long) value > 0xffff || (long) value < -0x10000)
2224 return bfd_reloc_overflow;
2225
2226 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2227 return bfd_reloc_ok;
2228
2229 }
2230 static bfd_reloc_status_type
2231 elf32_frv_relocate_lo16 (bfd *input_bfd,
2232 Elf_Internal_Rela *rello,
2233 bfd_byte *contents,
2234 bfd_vma value)
2235 {
2236 bfd_vma insn;
2237
2238 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2239
2240 value += rello->r_addend;
2241 value = value & 0xffff;
2242
2243 insn = (insn & 0xffff0000) | value;
2244
2245 if ((long) value > 0xffff || (long) value < -0x10000)
2246 return bfd_reloc_overflow;
2247
2248 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2249 return bfd_reloc_ok;
2250 }
2251
2252 /* Perform the relocation for the CALL label24 instruction. */
2253
2254 static bfd_reloc_status_type
2255 elf32_frv_relocate_label24 (bfd *input_bfd,
2256 asection *input_section,
2257 Elf_Internal_Rela *rello,
2258 bfd_byte *contents,
2259 bfd_vma value)
2260 {
2261 bfd_vma insn;
2262 bfd_vma label6;
2263 bfd_vma label18;
2264
2265 /* The format for the call instruction is:
2266
2267 0 000000 0001111 000000000000000000
2268 label6 opcode label18
2269
2270 The branch calculation is: pc + (4*label24)
2271 where label24 is the concatenation of label6 and label18. */
2272
2273 /* Grab the instruction. */
2274 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2275
2276 value -= input_section->output_section->vma + input_section->output_offset;
2277 value -= rello->r_offset;
2278 value += rello->r_addend;
2279
2280 value = value >> 2;
2281
2282 label6 = value & 0xfc0000;
2283 label6 = label6 << 7;
2284
2285 label18 = value & 0x3ffff;
2286
2287 insn = insn & 0x803c0000;
2288 insn = insn | label6;
2289 insn = insn | label18;
2290
2291 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2292
2293 return bfd_reloc_ok;
2294 }
2295
2296 static bfd_reloc_status_type
2297 elf32_frv_relocate_gprelhi (struct bfd_link_info *info,
2298 bfd *input_bfd,
2299 asection *input_section,
2300 Elf_Internal_Rela *relocation,
2301 bfd_byte *contents,
2302 bfd_vma value)
2303 {
2304 bfd_vma insn;
2305 bfd_vma gp;
2306 struct bfd_link_hash_entry *h;
2307
2308 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2309
2310 gp = (h->u.def.value
2311 + h->u.def.section->output_section->vma
2312 + h->u.def.section->output_offset);
2313
2314 value -= input_section->output_section->vma;
2315 value -= (gp - input_section->output_section->vma);
2316 value += relocation->r_addend;
2317 value = ((value >> 16) & 0xffff);
2318
2319 if ((long) value > 0xffff || (long) value < -0x10000)
2320 return bfd_reloc_overflow;
2321
2322 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2323 insn = (insn & 0xffff0000) | value;
2324
2325 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2326 return bfd_reloc_ok;
2327 }
2328
2329 static bfd_reloc_status_type
2330 elf32_frv_relocate_gprello (struct bfd_link_info *info,
2331 bfd *input_bfd,
2332 asection *input_section,
2333 Elf_Internal_Rela *relocation,
2334 bfd_byte *contents,
2335 bfd_vma value)
2336 {
2337 bfd_vma insn;
2338 bfd_vma gp;
2339 struct bfd_link_hash_entry *h;
2340
2341 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2342
2343 gp = (h->u.def.value
2344 + h->u.def.section->output_section->vma
2345 + h->u.def.section->output_offset);
2346
2347 value -= input_section->output_section->vma;
2348 value -= (gp - input_section->output_section->vma);
2349 value += relocation->r_addend;
2350 value = value & 0xffff;
2351
2352 if ((long) value > 0xffff || (long) value < -0x10000)
2353 return bfd_reloc_overflow;
2354
2355 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2356 insn = (insn & 0xffff0000) | value;
2357
2358 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2359
2360 return bfd_reloc_ok;
2361 }
2362
2363 static reloc_howto_type *
2364 frv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2365 bfd_reloc_code_real_type code)
2366 {
2367 switch (code)
2368 {
2369 default:
2370 break;
2371
2372 case BFD_RELOC_NONE:
2373 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2374
2375 case BFD_RELOC_32:
2376 if (elf_elfheader (abfd)->e_type == ET_EXEC
2377 || elf_elfheader (abfd)->e_type == ET_DYN)
2378 return &elf32_frv_rel_32_howto;
2379 /* Fall through. */
2380 case BFD_RELOC_CTOR:
2381 return &elf32_frv_howto_table[ (int) R_FRV_32];
2382
2383 case BFD_RELOC_FRV_LABEL16:
2384 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2385
2386 case BFD_RELOC_FRV_LABEL24:
2387 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2388
2389 case BFD_RELOC_FRV_LO16:
2390 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2391
2392 case BFD_RELOC_FRV_HI16:
2393 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2394
2395 case BFD_RELOC_FRV_GPREL12:
2396 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2397
2398 case BFD_RELOC_FRV_GPRELU12:
2399 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2400
2401 case BFD_RELOC_FRV_GPREL32:
2402 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2403
2404 case BFD_RELOC_FRV_GPRELHI:
2405 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2406
2407 case BFD_RELOC_FRV_GPRELLO:
2408 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2409
2410 case BFD_RELOC_FRV_GOT12:
2411 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2412
2413 case BFD_RELOC_FRV_GOTHI:
2414 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2415
2416 case BFD_RELOC_FRV_GOTLO:
2417 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2418
2419 case BFD_RELOC_FRV_FUNCDESC:
2420 if (elf_elfheader (abfd)->e_type == ET_EXEC
2421 || elf_elfheader (abfd)->e_type == ET_DYN)
2422 return &elf32_frv_rel_funcdesc_howto;
2423 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2424
2425 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2426 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2427
2428 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2429 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2430
2431 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2432 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2433
2434 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2435 if (elf_elfheader (abfd)->e_type == ET_EXEC
2436 || elf_elfheader (abfd)->e_type == ET_DYN)
2437 return &elf32_frv_rel_funcdesc_value_howto;
2438 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2439
2440 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2441 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2442
2443 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2444 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2445
2446 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2447 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2448
2449 case BFD_RELOC_FRV_GOTOFF12:
2450 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2451
2452 case BFD_RELOC_FRV_GOTOFFHI:
2453 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2454
2455 case BFD_RELOC_FRV_GOTOFFLO:
2456 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2457
2458 case BFD_RELOC_FRV_GETTLSOFF:
2459 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2460
2461 case BFD_RELOC_FRV_TLSDESC_VALUE:
2462 if (elf_elfheader (abfd)->e_type == ET_EXEC
2463 || elf_elfheader (abfd)->e_type == ET_DYN)
2464 return &elf32_frv_rel_tlsdesc_value_howto;
2465 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2466
2467 case BFD_RELOC_FRV_GOTTLSDESC12:
2468 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2469
2470 case BFD_RELOC_FRV_GOTTLSDESCHI:
2471 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2472
2473 case BFD_RELOC_FRV_GOTTLSDESCLO:
2474 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2475
2476 case BFD_RELOC_FRV_TLSMOFF12:
2477 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2478
2479 case BFD_RELOC_FRV_TLSMOFFHI:
2480 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2481
2482 case BFD_RELOC_FRV_TLSMOFFLO:
2483 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2484
2485 case BFD_RELOC_FRV_GOTTLSOFF12:
2486 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2487
2488 case BFD_RELOC_FRV_GOTTLSOFFHI:
2489 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2490
2491 case BFD_RELOC_FRV_GOTTLSOFFLO:
2492 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2493
2494 case BFD_RELOC_FRV_TLSOFF:
2495 if (elf_elfheader (abfd)->e_type == ET_EXEC
2496 || elf_elfheader (abfd)->e_type == ET_DYN)
2497 return &elf32_frv_rel_tlsoff_howto;
2498 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2499
2500 case BFD_RELOC_FRV_TLSDESC_RELAX:
2501 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2502
2503 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2504 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2505
2506 case BFD_RELOC_FRV_TLSOFF_RELAX:
2507 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2508
2509 case BFD_RELOC_FRV_TLSMOFF:
2510 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2511
2512 case BFD_RELOC_VTABLE_INHERIT:
2513 return &elf32_frv_vtinherit_howto;
2514
2515 case BFD_RELOC_VTABLE_ENTRY:
2516 return &elf32_frv_vtentry_howto;
2517 }
2518
2519 return NULL;
2520 }
2521
2522 static reloc_howto_type *
2523 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2524 {
2525 unsigned int i;
2526
2527 for (i = 0;
2528 i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2529 i++)
2530 if (elf32_frv_howto_table[i].name != NULL
2531 && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2532 return &elf32_frv_howto_table[i];
2533
2534 if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2535 return &elf32_frv_vtinherit_howto;
2536 if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2537 return &elf32_frv_vtentry_howto;
2538
2539 return NULL;
2540 }
2541
2542 /* Set the howto pointer for an FRV ELF reloc. */
2543
2544 static void
2545 frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2546 arelent *cache_ptr,
2547 Elf_Internal_Rela *dst)
2548 {
2549 unsigned int r_type;
2550
2551 r_type = ELF32_R_TYPE (dst->r_info);
2552 switch (r_type)
2553 {
2554 case R_FRV_GNU_VTINHERIT:
2555 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2556 break;
2557
2558 case R_FRV_GNU_VTENTRY:
2559 cache_ptr->howto = &elf32_frv_vtentry_howto;
2560 break;
2561
2562 default:
2563 if (r_type >= (unsigned int) R_FRV_max)
2564 {
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
2780 case R_FRV_GOT12:
2781 case R_FRV_GOTHI:
2782 case R_FRV_GOTLO:
2783 case R_FRV_FUNCDESC_GOT12:
2784 case R_FRV_FUNCDESC_GOTHI:
2785 case R_FRV_FUNCDESC_GOTLO:
2786 case R_FRV_GOTOFF12:
2787 case R_FRV_GOTOFFHI:
2788 case R_FRV_GOTOFFLO:
2789 case R_FRV_FUNCDESC_GOTOFF12:
2790 case R_FRV_FUNCDESC_GOTOFFHI:
2791 case R_FRV_FUNCDESC_GOTOFFLO:
2792 case R_FRV_FUNCDESC:
2793 case R_FRV_FUNCDESC_VALUE:
2794 case R_FRV_GETTLSOFF:
2795 case R_FRV_TLSDESC_VALUE:
2796 case R_FRV_GOTTLSDESC12:
2797 case R_FRV_GOTTLSDESCHI:
2798 case R_FRV_GOTTLSDESCLO:
2799 case R_FRV_TLSMOFF12:
2800 case R_FRV_TLSMOFFHI:
2801 case R_FRV_TLSMOFFLO:
2802 case R_FRV_GOTTLSOFF12:
2803 case R_FRV_GOTTLSOFFHI:
2804 case R_FRV_GOTTLSOFFLO:
2805 case R_FRV_TLSOFF:
2806 case R_FRV_TLSDESC_RELAX:
2807 case R_FRV_GETTLSOFF_RELAX:
2808 case R_FRV_TLSOFF_RELAX:
2809 case R_FRV_TLSMOFF:
2810 if (h != NULL)
2811 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2812 (info), input_bfd, h,
2813 orig_addend, INSERT);
2814 else
2815 /* In order to find the entry we created before, we must
2816 use the original addend, not the one that may have been
2817 modified by _bfd_elf_rela_local_sym(). */
2818 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2819 (info), input_bfd, r_symndx,
2820 orig_addend, INSERT);
2821 if (! picrel)
2822 return FALSE;
2823
2824 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2825 osec, sym,
2826 rel->r_addend))
2827 {
2828 info->callbacks->einfo
2829 (_("%H: relocation to `%s+%v'"
2830 " may have caused the error above\n"),
2831 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2832 return FALSE;
2833 }
2834
2835 break;
2836
2837 default:
2838 non_fdpic:
2839 picrel = NULL;
2840 if (h
2841 && ! FRVFDPIC_SYM_LOCAL (info, h)
2842 && _bfd_elf_section_offset (output_bfd, info, input_section,
2843 rel->r_offset) != (bfd_vma) -1)
2844 {
2845 info->callbacks->einfo
2846 (_("%H: relocation references symbol"
2847 " not defined in the module\n"),
2848 input_bfd, input_section, rel->r_offset);
2849 return FALSE;
2850 }
2851 break;
2852 }
2853
2854 switch (r_type)
2855 {
2856 case R_FRV_GETTLSOFF:
2857 case R_FRV_TLSDESC_VALUE:
2858 case R_FRV_GOTTLSDESC12:
2859 case R_FRV_GOTTLSDESCHI:
2860 case R_FRV_GOTTLSDESCLO:
2861 case R_FRV_TLSMOFF12:
2862 case R_FRV_TLSMOFFHI:
2863 case R_FRV_TLSMOFFLO:
2864 case R_FRV_GOTTLSOFF12:
2865 case R_FRV_GOTTLSOFFHI:
2866 case R_FRV_GOTTLSOFFLO:
2867 case R_FRV_TLSOFF:
2868 case R_FRV_TLSDESC_RELAX:
2869 case R_FRV_GETTLSOFF_RELAX:
2870 case R_FRV_TLSOFF_RELAX:
2871 case R_FRV_TLSMOFF:
2872 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2873 relocation += tls_biased_base (info);
2874 break;
2875
2876 default:
2877 break;
2878 }
2879
2880 /* Try to apply TLS relaxations. */
2881 if (1)
2882 switch (r_type)
2883 {
2884
2885 #define LOCAL_EXEC_P(info, picrel) \
2886 (bfd_link_executable (info) \
2887 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2888 #define INITIAL_EXEC_P(info, picrel) \
2889 ((bfd_link_executable (info)|| (info)->flags & DF_STATIC_TLS) \
2890 && (picrel)->tlsoff_entry)
2891
2892 #define IN_RANGE_FOR_OFST12_P(value) \
2893 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2894 #define IN_RANGE_FOR_SETLOS_P(value) \
2895 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2896 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2897 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2898
2899 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2900 (LOCAL_EXEC_P ((info), (picrel)) \
2901 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2902 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2903 (INITIAL_EXEC_P ((info), (picrel)) \
2904 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2905
2906 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2907 (LOCAL_EXEC_P ((info), (picrel)))
2908 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2909 (INITIAL_EXEC_P ((info), (picrel)))
2910
2911 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2912 (LOCAL_EXEC_P ((info), (picrel)) \
2913 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2914
2915 case R_FRV_GETTLSOFF:
2916 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2917
2918 /* Is this a call instruction? */
2919 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2920 {
2921 info->callbacks->einfo
2922 (_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
2923 input_bfd, input_section, rel->r_offset);
2924 return FALSE;
2925 }
2926
2927 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2928 relocation + rel->r_addend))
2929 {
2930 /* Replace the call instruction (except the packing bit)
2931 with setlos #tlsmofflo(symbol+offset), gr9. */
2932 insn &= (unsigned long)0x80000000;
2933 insn |= (unsigned long)0x12fc0000;
2934 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2935
2936 r_type = R_FRV_TLSMOFFLO;
2937 howto = elf32_frv_howto_table + r_type;
2938 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2939 }
2940
2941 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
2942 {
2943 /* Replace the call instruction (except the packing bit)
2944 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
2945 insn &= (unsigned long)0x80000000;
2946 insn |= (unsigned long)0x12c8f000;
2947 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2948
2949 r_type = R_FRV_GOTTLSOFF12;
2950 howto = elf32_frv_howto_table + r_type;
2951 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2952 }
2953
2954 break;
2955
2956 case R_FRV_GOTTLSDESC12:
2957 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2958
2959 /* Is this an lddi instruction? */
2960 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
2961 {
2962 info->callbacks->einfo
2963 (_("%H: R_FRV_GOTTLSDESC12"
2964 " not applied to an lddi instruction\n"),
2965 input_bfd, input_section, rel->r_offset);
2966 return FALSE;
2967 }
2968
2969 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2970 relocation + rel->r_addend)
2971 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
2972 info))
2973 {
2974 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2975 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
2976 Preserve the packing bit. */
2977 insn = (insn & (unsigned long)0x80000000)
2978 | ((insn + (unsigned long)0x02000000)
2979 & (unsigned long)0x7e000000);
2980 insn |= (unsigned long)0x00fc0000;
2981 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2982
2983 r_type = R_FRV_TLSMOFFLO;
2984 howto = elf32_frv_howto_table + r_type;
2985 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2986 }
2987
2988 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2989 relocation + rel->r_addend))
2990 {
2991 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2992 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
2993 Preserve the packing bit. */
2994 insn = (insn & (unsigned long)0x80000000)
2995 | ((insn + (unsigned long)0x02000000)
2996 & (unsigned long)0x7e000000);
2997 insn |= (unsigned long)0x00f80000;
2998 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2999
3000 r_type = R_FRV_TLSMOFFHI;
3001 howto = elf32_frv_howto_table + r_type;
3002 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3003 }
3004
3005 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3006 {
3007 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3008 with ldi @(grB, #gottlsoff12(symbol+offset),
3009 gr<C+1>. Preserve the packing bit. If gottlsoff12
3010 overflows, we'll error out, but that's sort-of ok,
3011 since we'd started with gottlsdesc12, that's actually
3012 more demanding. Compiling with -fPIE instead of
3013 -fpie would fix it; linking with --relax should fix
3014 it as well. */
3015 insn = (insn & (unsigned long)0x80cbf000)
3016 | ((insn + (unsigned long)0x02000000)
3017 & (unsigned long)0x7e000000);
3018 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3019
3020 r_type = R_FRV_GOTTLSOFF12;
3021 howto = elf32_frv_howto_table + r_type;
3022 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3023 }
3024
3025 break;
3026
3027 case R_FRV_GOTTLSDESCHI:
3028 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3029
3030 /* Is this a sethi instruction? */
3031 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3032 {
3033 info->callbacks->einfo
3034 (_("%H: R_FRV_GOTTLSDESCHI"
3035 " not applied to a sethi instruction\n"),
3036 input_bfd, input_section, rel->r_offset);
3037 return FALSE;
3038 }
3039
3040 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3041 relocation + rel->r_addend)
3042 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3043 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3044 {
3045 /* Replace sethi with a nop. Preserve the packing bit. */
3046 insn &= (unsigned long)0x80000000;
3047 insn |= (unsigned long)0x00880000;
3048 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3049
3050 /* Nothing to relocate. */
3051 continue;
3052 }
3053
3054 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3055 {
3056 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3057 r_type = R_FRV_GOTTLSOFFHI;
3058 howto = elf32_frv_howto_table + r_type;
3059 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3060 }
3061
3062 break;
3063
3064 case R_FRV_GOTTLSDESCLO:
3065 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3066
3067 /* Is this a setlo or setlos instruction? */
3068 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3069 {
3070 info->callbacks->einfo
3071 (_("%H: R_FRV_GOTTLSDESCLO"
3072 " not applied to a setlo or setlos instruction\n"),
3073 input_bfd, input_section, rel->r_offset);
3074 return FALSE;
3075 }
3076
3077 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3078 relocation + rel->r_addend)
3079 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3080 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3081 {
3082 /* Replace setlo/setlos with a nop. Preserve the
3083 packing bit. */
3084 insn &= (unsigned long)0x80000000;
3085 insn |= (unsigned long)0x00880000;
3086 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3087
3088 /* Nothing to relocate. */
3089 continue;
3090 }
3091
3092 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3093 {
3094 /* If the corresponding sethi (if it exists) decayed
3095 to a nop, make sure this becomes (or already is) a
3096 setlos, not setlo. */
3097 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3098 {
3099 insn |= (unsigned long)0x00080000;
3100 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3101 }
3102
3103 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3104 r_type = R_FRV_GOTTLSOFFLO;
3105 howto = elf32_frv_howto_table + r_type;
3106 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3107 }
3108
3109 break;
3110
3111 case R_FRV_TLSDESC_RELAX:
3112 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3113
3114 /* Is this an ldd instruction? */
3115 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3116 {
3117 info->callbacks->einfo
3118 (_("%H: R_FRV_TLSDESC_RELAX"
3119 " not applied to an ldd instruction\n"),
3120 input_bfd, input_section, rel->r_offset);
3121 return FALSE;
3122 }
3123
3124 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3125 relocation + rel->r_addend)
3126 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3127 info))
3128 {
3129 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3130 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3131 Preserve the packing bit. */
3132 insn = (insn & (unsigned long)0x80000000)
3133 | ((insn + (unsigned long)0x02000000)
3134 & (unsigned long)0x7e000000);
3135 insn |= (unsigned long)0x00fc0000;
3136 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3137
3138 r_type = R_FRV_TLSMOFFLO;
3139 howto = elf32_frv_howto_table + r_type;
3140 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3141 }
3142
3143 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3144 relocation + rel->r_addend))
3145 {
3146 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3147 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3148 Preserve the packing bit. */
3149 insn = (insn & (unsigned long)0x80000000)
3150 | ((insn + (unsigned long)0x02000000)
3151 & (unsigned long)0x7e000000);
3152 insn |= (unsigned long)0x00f80000;
3153 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3154
3155 r_type = R_FRV_TLSMOFFHI;
3156 howto = elf32_frv_howto_table + r_type;
3157 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3158 }
3159
3160 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3161 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3162 {
3163 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3164 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3165 Preserve the packing bit. */
3166 insn = (insn & (unsigned long)0x8003f000)
3167 | (unsigned long)0x00c80000
3168 | ((insn + (unsigned long)0x02000000)
3169 & (unsigned long)0x7e000000);
3170 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3171
3172 r_type = R_FRV_GOTTLSOFF12;
3173 howto = elf32_frv_howto_table + r_type;
3174 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3175 }
3176
3177 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3178 {
3179 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3180 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3181 Preserve the packing bit. */
3182 insn = (insn & (unsigned long)0x81ffffbf)
3183 | ((insn + (unsigned long)0x02000000)
3184 & (unsigned long)0x7e000000);
3185 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3186
3187 /* #tlsoff(symbol+offset) is just a relaxation
3188 annotation, so there's nothing left to
3189 relocate. */
3190 continue;
3191 }
3192
3193 break;
3194
3195 case R_FRV_GETTLSOFF_RELAX:
3196 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3197
3198 /* Is this a calll or callil instruction? */
3199 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3200 {
3201 info->callbacks->einfo
3202 (_("%H: R_FRV_GETTLSOFF_RELAX"
3203 " not applied to a calll instruction\n"),
3204 input_bfd, input_section, rel->r_offset);
3205 return FALSE;
3206 }
3207
3208 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3209 relocation + rel->r_addend)
3210 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3211 info))
3212 {
3213 /* Replace calll with a nop. Preserve the packing bit. */
3214 insn &= (unsigned long)0x80000000;
3215 insn |= (unsigned long)0x00880000;
3216 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3217
3218 /* Nothing to relocate. */
3219 continue;
3220 }
3221
3222 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3223 relocation + rel->r_addend))
3224 {
3225 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3226 Preserve the packing bit. */
3227 insn &= (unsigned long)0x80000000;
3228 insn |= (unsigned long)0x12f40000;
3229 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3230
3231 r_type = R_FRV_TLSMOFFLO;
3232 howto = elf32_frv_howto_table + r_type;
3233 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3234 }
3235
3236 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3237 {
3238 /* Replace calll with a nop. Preserve the packing bit. */
3239 insn &= (unsigned long)0x80000000;
3240 insn |= (unsigned long)0x00880000;
3241 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3242
3243 /* Nothing to relocate. */
3244 continue;
3245 }
3246
3247 break;
3248
3249 case R_FRV_GOTTLSOFF12:
3250 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3251
3252 /* Is this an ldi instruction? */
3253 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3254 {
3255 info->callbacks->einfo
3256 (_("%H: R_FRV_GOTTLSOFF12"
3257 " not applied to an ldi instruction\n"),
3258 input_bfd, input_section, rel->r_offset);
3259 return FALSE;
3260 }
3261
3262 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3263 relocation + rel->r_addend))
3264 {
3265 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3266 with setlos #tlsmofflo(symbol+offset), grC.
3267 Preserve the packing bit. */
3268 insn &= (unsigned long)0xfe000000;
3269 insn |= (unsigned long)0x00fc0000;
3270 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3271
3272 r_type = R_FRV_TLSMOFFLO;
3273 howto = elf32_frv_howto_table + r_type;
3274 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3275 }
3276
3277 break;
3278
3279 case R_FRV_GOTTLSOFFHI:
3280 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3281
3282 /* Is this a sethi instruction? */
3283 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3284 {
3285 info->callbacks->einfo
3286 (_("%H: R_FRV_GOTTLSOFFHI"
3287 " not applied to a sethi instruction\n"),
3288 input_bfd, input_section, rel->r_offset);
3289 return FALSE;
3290 }
3291
3292 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3293 relocation + rel->r_addend)
3294 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3295 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3296 {
3297 /* Replace sethi with a nop. Preserve the packing bit. */
3298 insn &= (unsigned long)0x80000000;
3299 insn |= (unsigned long)0x00880000;
3300 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3301
3302 /* Nothing to relocate. */
3303 continue;
3304 }
3305
3306 break;
3307
3308 case R_FRV_GOTTLSOFFLO:
3309 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3310
3311 /* Is this a setlo or setlos instruction? */
3312 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3313 {
3314 info->callbacks->einfo
3315 (_("%H: R_FRV_GOTTLSOFFLO"
3316 " not applied to a setlo or setlos instruction\n"),
3317 input_bfd, input_section, rel->r_offset);
3318 return FALSE;
3319 }
3320
3321 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3322 relocation + rel->r_addend)
3323 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3324 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3325 {
3326 /* Replace setlo/setlos with a nop. Preserve the
3327 packing bit. */
3328 insn &= (unsigned long)0x80000000;
3329 insn |= (unsigned long)0x00880000;
3330 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3331
3332 /* Nothing to relocate. */
3333 continue;
3334 }
3335
3336 break;
3337
3338 case R_FRV_TLSOFF_RELAX:
3339 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3340
3341 /* Is this an ld instruction? */
3342 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3343 {
3344 info->callbacks->einfo
3345 (_("%H: R_FRV_TLSOFF_RELAX"
3346 " not applied to an ld instruction\n"),
3347 input_bfd, input_section, rel->r_offset);
3348 return FALSE;
3349 }
3350
3351 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3352 relocation + rel->r_addend))
3353 {
3354 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3355 with setlos #tlsmofflo(symbol+offset), grC.
3356 Preserve the packing bit. */
3357 insn &= (unsigned long)0xfe000000;
3358 insn |= (unsigned long)0x00fc0000;
3359 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3360
3361 r_type = R_FRV_TLSMOFFLO;
3362 howto = elf32_frv_howto_table + r_type;
3363 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3364 }
3365
3366 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3367 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3368 {
3369 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3370 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3371 Preserve the packing bit. */
3372 insn = (insn & (unsigned long)0xfe03f000)
3373 | (unsigned long)0x00c80000;
3374 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3375
3376 r_type = R_FRV_GOTTLSOFF12;
3377 howto = elf32_frv_howto_table + r_type;
3378 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3379 }
3380
3381 break;
3382
3383 case R_FRV_TLSMOFFHI:
3384 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3385
3386 /* Is this a sethi instruction? */
3387 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3388 {
3389 info->callbacks->einfo
3390 (_("%H: R_FRV_TLSMOFFHI"
3391 " not applied to a sethi instruction\n"),
3392 input_bfd, input_section, rel->r_offset);
3393 return FALSE;
3394 }
3395
3396 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3397 info))
3398 {
3399 /* Replace sethi with a nop. Preserve the packing bit. */
3400 insn &= (unsigned long)0x80000000;
3401 insn |= (unsigned long)0x00880000;
3402 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3403
3404 /* Nothing to relocate. */
3405 continue;
3406 }
3407
3408 break;
3409
3410 case R_FRV_TLSMOFFLO:
3411 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3412
3413 /* Is this a setlo or setlos instruction? */
3414 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3415 {
3416 info->callbacks->einfo
3417 (_("R_FRV_TLSMOFFLO"
3418 " not applied to a setlo or setlos instruction\n"),
3419 input_bfd, input_section, rel->r_offset);
3420 return FALSE;
3421 }
3422
3423 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3424 info))
3425 /* If the corresponding sethi (if it exists) decayed
3426 to a nop, make sure this becomes (or already is) a
3427 setlos, not setlo. */
3428 {
3429 insn |= (unsigned long)0x00080000;
3430 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3431 }
3432
3433 break;
3434
3435 /*
3436 There's nothing to relax in these:
3437 R_FRV_TLSDESC_VALUE
3438 R_FRV_TLSOFF
3439 R_FRV_TLSMOFF12
3440 R_FRV_TLSMOFFHI
3441 R_FRV_TLSMOFFLO
3442 R_FRV_TLSMOFF
3443 */
3444
3445 default:
3446 break;
3447 }
3448
3449 switch (r_type)
3450 {
3451 case R_FRV_LABEL24:
3452 check_segment[0] = isec_segment;
3453 if (! IS_FDPIC (output_bfd))
3454 check_segment[1] = isec_segment;
3455 else if (picrel->plt)
3456 {
3457 relocation = frvfdpic_plt_section (info)->output_section->vma
3458 + frvfdpic_plt_section (info)->output_offset
3459 + picrel->plt_entry;
3460 check_segment[1] = plt_segment;
3461 }
3462 /* We don't want to warn on calls to undefined weak symbols,
3463 as calls to them must be protected by non-NULL tests
3464 anyway, and unprotected calls would invoke undefined
3465 behavior. */
3466 else if (picrel->symndx == -1
3467 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3468 check_segment[1] = check_segment[0];
3469 else
3470 check_segment[1] = sec
3471 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3472 : (unsigned)-1;
3473 break;
3474
3475 case R_FRV_GOT12:
3476 case R_FRV_GOTHI:
3477 case R_FRV_GOTLO:
3478 relocation = picrel->got_entry;
3479 check_segment[0] = check_segment[1] = got_segment;
3480 break;
3481
3482 case R_FRV_FUNCDESC_GOT12:
3483 case R_FRV_FUNCDESC_GOTHI:
3484 case R_FRV_FUNCDESC_GOTLO:
3485 relocation = picrel->fdgot_entry;
3486 check_segment[0] = check_segment[1] = got_segment;
3487 break;
3488
3489 case R_FRV_GOTOFFHI:
3490 case R_FRV_GOTOFF12:
3491 case R_FRV_GOTOFFLO:
3492 relocation -= frvfdpic_got_section (info)->output_section->vma
3493 + frvfdpic_got_section (info)->output_offset
3494 + frvfdpic_got_initial_offset (info);
3495 check_segment[0] = got_segment;
3496 check_segment[1] = sec
3497 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3498 : (unsigned)-1;
3499 break;
3500
3501 case R_FRV_FUNCDESC_GOTOFF12:
3502 case R_FRV_FUNCDESC_GOTOFFHI:
3503 case R_FRV_FUNCDESC_GOTOFFLO:
3504 relocation = picrel->fd_entry;
3505 check_segment[0] = check_segment[1] = got_segment;
3506 break;
3507
3508 case R_FRV_FUNCDESC:
3509 {
3510 int dynindx;
3511 bfd_vma addend = rel->r_addend;
3512
3513 if (! (h && h->root.type == bfd_link_hash_undefweak
3514 && FRVFDPIC_SYM_LOCAL (info, h)))
3515 {
3516 /* If the symbol is dynamic and there may be dynamic
3517 symbol resolution because we are or are linked with a
3518 shared library, emit a FUNCDESC relocation such that
3519 the dynamic linker will allocate the function
3520 descriptor. If the symbol needs a non-local function
3521 descriptor but binds locally (e.g., its visibility is
3522 protected, emit a dynamic relocation decayed to
3523 section+offset. */
3524 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3525 && FRVFDPIC_SYM_LOCAL (info, h)
3526 && !(bfd_link_executable (info)
3527 && !bfd_link_pic (info)))
3528 {
3529 dynindx = elf_section_data (h->root.u.def.section
3530 ->output_section)->dynindx;
3531 addend += h->root.u.def.section->output_offset
3532 + h->root.u.def.value;
3533 }
3534 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3535 {
3536 if (addend)
3537 {
3538 info->callbacks->einfo
3539 (_("%H: R_FRV_FUNCDESC references dynamic symbol"
3540 " with nonzero addend\n"),
3541 input_bfd, input_section, rel->r_offset);
3542 return FALSE;
3543 }
3544 dynindx = h->dynindx;
3545 }
3546 else
3547 {
3548 /* Otherwise, we know we have a private function
3549 descriptor, so reference it directly. */
3550 BFD_ASSERT (picrel->privfd);
3551 r_type = R_FRV_32;
3552 dynindx = elf_section_data (frvfdpic_got_section (info)
3553 ->output_section)->dynindx;
3554 addend = frvfdpic_got_section (info)->output_offset
3555 + frvfdpic_got_initial_offset (info)
3556 + picrel->fd_entry;
3557 }
3558
3559 /* If there is room for dynamic symbol resolution, emit
3560 the dynamic relocation. However, if we're linking an
3561 executable at a fixed location, we won't have emitted a
3562 dynamic symbol entry for the got section, so idx will
3563 be zero, which means we can and should compute the
3564 address of the private descriptor ourselves. */
3565 if (bfd_link_executable (info) && !bfd_link_pic (info)
3566 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3567 {
3568 addend += frvfdpic_got_section (info)->output_section->vma;
3569 if ((bfd_get_section_flags (output_bfd,
3570 input_section->output_section)
3571 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3572 {
3573 bfd_vma offset;
3574
3575 if (_frvfdpic_osec_readonly_p (output_bfd,
3576 input_section
3577 ->output_section))
3578 {
3579 info->callbacks->einfo
3580 (_("%H: cannot emit fixups"
3581 " in read-only section\n"),
3582 input_bfd, input_section, rel->r_offset);
3583 return FALSE;
3584 }
3585
3586 offset = _bfd_elf_section_offset
3587 (output_bfd, info,
3588 input_section, rel->r_offset);
3589
3590 if (offset != (bfd_vma)-1)
3591 _frvfdpic_add_rofixup (output_bfd,
3592 frvfdpic_gotfixup_section
3593 (info),
3594 offset + input_section
3595 ->output_section->vma
3596 + input_section->output_offset,
3597 picrel);
3598 }
3599 }
3600 else if ((bfd_get_section_flags (output_bfd,
3601 input_section->output_section)
3602 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3603 {
3604 bfd_vma offset;
3605
3606 if (_frvfdpic_osec_readonly_p (output_bfd,
3607 input_section
3608 ->output_section))
3609 {
3610 info->callbacks->einfo
3611 (_("%H: cannot emit dynamic relocations"
3612 " in read-only section\n"),
3613 input_bfd, input_section, rel->r_offset);
3614 return FALSE;
3615 }
3616
3617 offset = _bfd_elf_section_offset
3618 (output_bfd, info,
3619 input_section, rel->r_offset);
3620
3621 if (offset != (bfd_vma)-1)
3622 _frvfdpic_add_dyn_reloc (output_bfd,
3623 frvfdpic_gotrel_section (info),
3624 offset + input_section
3625 ->output_section->vma
3626 + input_section->output_offset,
3627 r_type, dynindx, addend, picrel);
3628 }
3629 else
3630 addend += frvfdpic_got_section (info)->output_section->vma;
3631 }
3632
3633 /* We want the addend in-place because dynamic
3634 relocations are REL. Setting relocation to it should
3635 arrange for it to be installed. */
3636 relocation = addend - rel->r_addend;
3637 }
3638 check_segment[0] = check_segment[1] = got_segment;
3639 break;
3640
3641 case R_FRV_32:
3642 if (! IS_FDPIC (output_bfd))
3643 {
3644 check_segment[0] = check_segment[1] = -1;
3645 break;
3646 }
3647 /* Fall through. */
3648 case R_FRV_FUNCDESC_VALUE:
3649 {
3650 int dynindx;
3651 bfd_vma addend = rel->r_addend;
3652
3653 /* If the symbol is dynamic but binds locally, use
3654 section+offset. */
3655 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3656 {
3657 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3658 {
3659 info->callbacks->einfo
3660 (_("%H: R_FRV_FUNCDESC_VALUE"
3661 " references dynamic symbol with nonzero addend\n"),
3662 input_bfd, input_section, rel->r_offset);
3663 return FALSE;
3664 }
3665 dynindx = h->dynindx;
3666 }
3667 else
3668 {
3669 if (h)
3670 addend += h->root.u.def.value;
3671 else
3672 addend += sym->st_value;
3673 if (osec)
3674 addend += osec->output_offset;
3675 if (osec && osec->output_section
3676 && ! bfd_is_abs_section (osec->output_section)
3677 && ! bfd_is_und_section (osec->output_section))
3678 dynindx = elf_section_data (osec->output_section)->dynindx;
3679 else
3680 dynindx = 0;
3681 }
3682
3683 /* If we're linking an executable at a fixed address, we
3684 can omit the dynamic relocation as long as the symbol
3685 is defined in the current link unit (which is implied
3686 by its output section not being NULL). */
3687 if (bfd_link_executable (info) && !bfd_link_pic (info)
3688 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3689 {
3690 if (osec)
3691 addend += osec->output_section->vma;
3692 if (IS_FDPIC (input_bfd)
3693 && (bfd_get_section_flags (output_bfd,
3694 input_section->output_section)
3695 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3696 {
3697 if (_frvfdpic_osec_readonly_p (output_bfd,
3698 input_section
3699 ->output_section))
3700 {
3701 info->callbacks->einfo
3702 (_("%H: cannot emit fixups in read-only section\n"),
3703 input_bfd, input_section, rel->r_offset);
3704 return FALSE;
3705 }
3706 if (!h || h->root.type != bfd_link_hash_undefweak)
3707 {
3708 bfd_vma offset = _bfd_elf_section_offset
3709 (output_bfd, info,
3710 input_section, rel->r_offset);
3711
3712 if (offset != (bfd_vma)-1)
3713 {
3714 _frvfdpic_add_rofixup (output_bfd,
3715 frvfdpic_gotfixup_section
3716 (info),
3717 offset + input_section
3718 ->output_section->vma
3719 + input_section->output_offset,
3720 picrel);
3721 if (r_type == R_FRV_FUNCDESC_VALUE)
3722 _frvfdpic_add_rofixup
3723 (output_bfd,
3724 frvfdpic_gotfixup_section (info),
3725 offset
3726 + input_section->output_section->vma
3727 + input_section->output_offset + 4, picrel);
3728 }
3729 }
3730 }
3731 }
3732 else
3733 {
3734 if ((bfd_get_section_flags (output_bfd,
3735 input_section->output_section)
3736 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3737 {
3738 bfd_vma offset;
3739
3740 if (_frvfdpic_osec_readonly_p (output_bfd,
3741 input_section
3742 ->output_section))
3743 {
3744 info->callbacks->einfo
3745 (_("%H: cannot emit dynamic relocations"
3746 " in read-only section\n"),
3747 input_bfd, input_section, rel->r_offset);
3748 return FALSE;
3749 }
3750
3751 offset = _bfd_elf_section_offset
3752 (output_bfd, info,
3753 input_section, rel->r_offset);
3754
3755 if (offset != (bfd_vma)-1)
3756 _frvfdpic_add_dyn_reloc (output_bfd,
3757 frvfdpic_gotrel_section (info),
3758 offset + input_section
3759 ->output_section->vma
3760 + input_section->output_offset,
3761 r_type, dynindx, addend, picrel);
3762 }
3763 else if (osec)
3764 addend += osec->output_section->vma;
3765 /* We want the addend in-place because dynamic
3766 relocations are REL. Setting relocation to it
3767 should arrange for it to be installed. */
3768 relocation = addend - rel->r_addend;
3769 }
3770
3771 if (r_type == R_FRV_FUNCDESC_VALUE)
3772 {
3773 /* If we've omitted the dynamic relocation, just emit
3774 the fixed addresses of the symbol and of the local
3775 GOT base offset. */
3776 if (bfd_link_executable (info) && !bfd_link_pic (info)
3777 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3778 bfd_put_32 (output_bfd,
3779 frvfdpic_got_section (info)->output_section->vma
3780 + frvfdpic_got_section (info)->output_offset
3781 + frvfdpic_got_initial_offset (info),
3782 contents + rel->r_offset + 4);
3783 else
3784 /* A function descriptor used for lazy or local
3785 resolving is initialized such that its high word
3786 contains the output section index in which the
3787 PLT entries are located, and the low word
3788 contains the offset of the lazy PLT entry entry
3789 point into that section. */
3790 bfd_put_32 (output_bfd,
3791 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3792 ? 0
3793 : _frvfdpic_osec_to_segment (output_bfd,
3794 sec
3795 ->output_section),
3796 contents + rel->r_offset + 4);
3797 }
3798 }
3799 check_segment[0] = check_segment[1] = got_segment;
3800 break;
3801
3802 case R_FRV_GPREL12:
3803 case R_FRV_GPRELU12:
3804 case R_FRV_GPREL32:
3805 case R_FRV_GPRELHI:
3806 case R_FRV_GPRELLO:
3807 check_segment[0] = gprel_segment;
3808 check_segment[1] = sec
3809 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3810 : (unsigned)-1;
3811 break;
3812
3813 case R_FRV_GETTLSOFF:
3814 relocation = frvfdpic_plt_section (info)->output_section->vma
3815 + frvfdpic_plt_section (info)->output_offset
3816 + picrel->tlsplt_entry;
3817 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3818 && picrel->tlsdesc_entry);
3819 check_segment[0] = isec_segment;
3820 check_segment[1] = plt_segment;
3821 break;
3822
3823 case R_FRV_GOTTLSDESC12:
3824 case R_FRV_GOTTLSDESCHI:
3825 case R_FRV_GOTTLSDESCLO:
3826 BFD_ASSERT (picrel->tlsdesc_entry);
3827 relocation = picrel->tlsdesc_entry;
3828 check_segment[0] = tls_segment;
3829 check_segment[1] = sec
3830 && ! bfd_is_abs_section (sec)
3831 && ! bfd_is_und_section (sec)
3832 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3833 : tls_segment;
3834 break;
3835
3836 case R_FRV_TLSMOFF12:
3837 case R_FRV_TLSMOFFHI:
3838 case R_FRV_TLSMOFFLO:
3839 case R_FRV_TLSMOFF:
3840 check_segment[0] = tls_segment;
3841 if (! sec)
3842 check_segment[1] = -1;
3843 else if (bfd_is_abs_section (sec)
3844 || bfd_is_und_section (sec))
3845 {
3846 relocation = 0;
3847 check_segment[1] = tls_segment;
3848 }
3849 else if (sec->output_section)
3850 {
3851 relocation -= tls_biased_base (info);
3852 check_segment[1] =
3853 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3854 }
3855 else
3856 check_segment[1] = -1;
3857 break;
3858
3859 case R_FRV_GOTTLSOFF12:
3860 case R_FRV_GOTTLSOFFHI:
3861 case R_FRV_GOTTLSOFFLO:
3862 BFD_ASSERT (picrel->tlsoff_entry);
3863 relocation = picrel->tlsoff_entry;
3864 check_segment[0] = tls_segment;
3865 check_segment[1] = sec
3866 && ! bfd_is_abs_section (sec)
3867 && ! bfd_is_und_section (sec)
3868 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3869 : tls_segment;
3870 break;
3871
3872 case R_FRV_TLSDESC_VALUE:
3873 case R_FRV_TLSOFF:
3874 /* These shouldn't be present in input object files. */
3875 check_segment[0] = check_segment[1] = isec_segment;
3876 break;
3877
3878 case R_FRV_TLSDESC_RELAX:
3879 case R_FRV_GETTLSOFF_RELAX:
3880 case R_FRV_TLSOFF_RELAX:
3881 /* These are just annotations for relaxation, nothing to do
3882 here. */
3883 continue;
3884
3885 default:
3886 check_segment[0] = isec_segment;
3887 check_segment[1] = sec
3888 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3889 : (unsigned)-1;
3890 break;
3891 }
3892
3893 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3894 {
3895 /* If you take this out, remove the #error from fdpic-static-6.d
3896 in the ld testsuite. */
3897 /* This helps catch problems in GCC while we can't do more
3898 than static linking. The idea is to test whether the
3899 input file basename is crt0.o only once. */
3900 if (silence_segment_error == 1)
3901 silence_segment_error =
3902 (strlen (input_bfd->filename) == 6
3903 && filename_cmp (input_bfd->filename, "crt0.o") == 0)
3904 || (strlen (input_bfd->filename) > 6
3905 && filename_cmp (input_bfd->filename
3906 + strlen (input_bfd->filename) - 7,
3907 "/crt0.o") == 0)
3908 ? -1 : 0;
3909 if (!silence_segment_error
3910 /* We don't want duplicate errors for undefined
3911 symbols. */
3912 && !(picrel && picrel->symndx == -1
3913 && picrel->d.h->root.type == bfd_link_hash_undefined))
3914 {
3915 info->callbacks->einfo
3916 (_("%H: reloc against `%s' references a different segment\n"),
3917 input_bfd, input_section, rel->r_offset, name);
3918 }
3919 if (!silence_segment_error && bfd_link_pic (info))
3920 return FALSE;
3921 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3922 }
3923
3924 switch (r_type)
3925 {
3926 case R_FRV_GOTOFFHI:
3927 case R_FRV_TLSMOFFHI:
3928 /* We need the addend to be applied before we shift the
3929 value right. */
3930 relocation += rel->r_addend;
3931 /* Fall through. */
3932 case R_FRV_GOTHI:
3933 case R_FRV_FUNCDESC_GOTHI:
3934 case R_FRV_FUNCDESC_GOTOFFHI:
3935 case R_FRV_GOTTLSOFFHI:
3936 case R_FRV_GOTTLSDESCHI:
3937 relocation >>= 16;
3938 /* Fall through. */
3939
3940 case R_FRV_GOTLO:
3941 case R_FRV_FUNCDESC_GOTLO:
3942 case R_FRV_GOTOFFLO:
3943 case R_FRV_FUNCDESC_GOTOFFLO:
3944 case R_FRV_GOTTLSOFFLO:
3945 case R_FRV_GOTTLSDESCLO:
3946 case R_FRV_TLSMOFFLO:
3947 relocation &= 0xffff;
3948 break;
3949
3950 default:
3951 break;
3952 }
3953
3954 switch (r_type)
3955 {
3956 case R_FRV_LABEL24:
3957 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3958 break;
3959 /* Fall through. */
3960
3961 /* When referencing a GOT entry, a function descriptor or a
3962 PLT, we don't want the addend to apply to the reference,
3963 but rather to the referenced symbol. The actual entry
3964 will have already been created taking the addend into
3965 account, so cancel it out here. */
3966 case R_FRV_GOT12:
3967 case R_FRV_GOTHI:
3968 case R_FRV_GOTLO:
3969 case R_FRV_FUNCDESC_GOT12:
3970 case R_FRV_FUNCDESC_GOTHI:
3971 case R_FRV_FUNCDESC_GOTLO:
3972 case R_FRV_FUNCDESC_GOTOFF12:
3973 case R_FRV_FUNCDESC_GOTOFFHI:
3974 case R_FRV_FUNCDESC_GOTOFFLO:
3975 case R_FRV_GETTLSOFF:
3976 case R_FRV_GOTTLSDESC12:
3977 case R_FRV_GOTTLSDESCHI:
3978 case R_FRV_GOTTLSDESCLO:
3979 case R_FRV_GOTTLSOFF12:
3980 case R_FRV_GOTTLSOFFHI:
3981 case R_FRV_GOTTLSOFFLO:
3982 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
3983 here, since we do want to apply the addend to the others.
3984 Note that we've applied the addend to GOTOFFHI before we
3985 shifted it right. */
3986 case R_FRV_GOTOFFHI:
3987 case R_FRV_TLSMOFFHI:
3988 relocation -= rel->r_addend;
3989 break;
3990
3991 default:
3992 break;
3993 }
3994
3995 if (r_type == R_FRV_HI16)
3996 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
3997
3998 else if (r_type == R_FRV_LO16)
3999 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4000
4001 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4002 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4003 contents, relocation);
4004
4005 else if (r_type == R_FRV_GPREL12)
4006 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4007 contents, relocation);
4008
4009 else if (r_type == R_FRV_GPRELU12)
4010 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4011 contents, relocation);
4012
4013 else if (r_type == R_FRV_GPRELLO)
4014 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4015 contents, relocation);
4016
4017 else if (r_type == R_FRV_GPRELHI)
4018 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4019 contents, relocation);
4020
4021 else if (r_type == R_FRV_TLSOFF
4022 || r_type == R_FRV_TLSDESC_VALUE)
4023 r = bfd_reloc_notsupported;
4024
4025 else
4026 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4027 rel, relocation);
4028
4029 if (r != bfd_reloc_ok)
4030 {
4031 const char * msg = (const char *) NULL;
4032
4033 switch (r)
4034 {
4035 case bfd_reloc_overflow:
4036 r = info->callbacks->reloc_overflow
4037 (info, (h ? &h->root : NULL), name, howto->name,
4038 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4039 break;
4040
4041 case bfd_reloc_undefined:
4042 r = info->callbacks->undefined_symbol
4043 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4044 break;
4045
4046 case bfd_reloc_outofrange:
4047 msg = _("internal error: out of range error");
4048 break;
4049
4050 case bfd_reloc_notsupported:
4051 msg = _("internal error: unsupported relocation error");
4052 break;
4053
4054 case bfd_reloc_dangerous:
4055 msg = _("internal error: dangerous relocation");
4056 break;
4057
4058 default:
4059 msg = _("internal error: unknown error");
4060 break;
4061 }
4062
4063 if (msg)
4064 {
4065 info->callbacks->einfo
4066 (_("%H: reloc against `%s': %s\n"),
4067 input_bfd, input_section, rel->r_offset, name, msg);
4068 return FALSE;
4069 }
4070
4071 if (! r)
4072 return FALSE;
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_executable (dinfo->info) || bfd_link_pie (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 + abs (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))
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 (_("%B: unsupported relocation type %i\n"),
6275 abfd, ELF32_R_TYPE (rel->r_info));
6276 return FALSE;
6277 }
6278 }
6279
6280 return TRUE;
6281 }
6282
6283 \f
6284 /* Return the machine subcode from the ELF e_flags header. */
6285
6286 static int
6287 elf32_frv_machine (bfd *abfd)
6288 {
6289 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6290 {
6291 default: break;
6292 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6293 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6294 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6295 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6296 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6297 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6298 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6299 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6300 }
6301
6302 return bfd_mach_frv;
6303 }
6304
6305 /* Set the right machine number for a FRV ELF file. */
6306
6307 static bfd_boolean
6308 elf32_frv_object_p (bfd *abfd)
6309 {
6310 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6311 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6312 == (IS_FDPIC (abfd)));
6313 }
6314 \f
6315 /* Function to set the ELF flag bits. */
6316
6317 static bfd_boolean
6318 frv_elf_set_private_flags (bfd *abfd, flagword flags)
6319 {
6320 elf_elfheader (abfd)->e_flags = flags;
6321 elf_flags_init (abfd) = TRUE;
6322 return TRUE;
6323 }
6324
6325 /* Return true if the architecture described by elf header flag
6326 EXTENSION is an extension of the architecture described by BASE. */
6327
6328 static bfd_boolean
6329 frv_elf_arch_extension_p (flagword base, flagword extension)
6330 {
6331 if (base == extension)
6332 return TRUE;
6333
6334 /* CPU_GENERIC code can be merged with code for a specific
6335 architecture, in which case the result is marked as being
6336 for the specific architecture. Everything is therefore
6337 an extension of CPU_GENERIC. */
6338 if (base == EF_FRV_CPU_GENERIC)
6339 return TRUE;
6340
6341 if (extension == EF_FRV_CPU_FR450)
6342 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6343 return TRUE;
6344
6345 if (extension == EF_FRV_CPU_FR405)
6346 if (base == EF_FRV_CPU_FR400)
6347 return TRUE;
6348
6349 return FALSE;
6350 }
6351
6352 /* Merge backend specific data from an object file to the output
6353 object file when linking. */
6354
6355 static bfd_boolean
6356 frv_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
6357 {
6358 flagword old_flags, old_partial;
6359 flagword new_flags, new_partial;
6360 bfd_boolean error = FALSE;
6361 char new_opt[80];
6362 char old_opt[80];
6363
6364 new_opt[0] = old_opt[0] = '\0';
6365 new_flags = elf_elfheader (ibfd)->e_flags;
6366 old_flags = elf_elfheader (obfd)->e_flags;
6367
6368 if (new_flags & EF_FRV_FDPIC)
6369 new_flags &= ~EF_FRV_PIC;
6370
6371 #ifdef DEBUG
6372 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6373 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6374 bfd_get_filename (ibfd));
6375 #endif
6376
6377 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6378 {
6379 elf_flags_init (obfd) = TRUE;
6380 old_flags = new_flags;
6381 }
6382
6383 else if (new_flags == old_flags) /* Compatible flags are ok. */
6384 ;
6385
6386 else /* Possibly incompatible flags. */
6387 {
6388 /* Warn if different # of gprs are used. Note, 0 means nothing is
6389 said about the size of gprs. */
6390 new_partial = (new_flags & EF_FRV_GPR_MASK);
6391 old_partial = (old_flags & EF_FRV_GPR_MASK);
6392 if (new_partial == old_partial)
6393 ;
6394
6395 else if (new_partial == 0)
6396 ;
6397
6398 else if (old_partial == 0)
6399 old_flags |= new_partial;
6400
6401 else
6402 {
6403 switch (new_partial)
6404 {
6405 default: strcat (new_opt, " -mgpr-??"); break;
6406 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6407 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6408 }
6409
6410 switch (old_partial)
6411 {
6412 default: strcat (old_opt, " -mgpr-??"); break;
6413 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6414 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6415 }
6416 }
6417
6418 /* Warn if different # of fprs are used. Note, 0 means nothing is
6419 said about the size of fprs. */
6420 new_partial = (new_flags & EF_FRV_FPR_MASK);
6421 old_partial = (old_flags & EF_FRV_FPR_MASK);
6422 if (new_partial == old_partial)
6423 ;
6424
6425 else if (new_partial == 0)
6426 ;
6427
6428 else if (old_partial == 0)
6429 old_flags |= new_partial;
6430
6431 else
6432 {
6433 switch (new_partial)
6434 {
6435 default: strcat (new_opt, " -mfpr-?"); break;
6436 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6437 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6438 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6439 }
6440
6441 switch (old_partial)
6442 {
6443 default: strcat (old_opt, " -mfpr-?"); break;
6444 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6445 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6446 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6447 }
6448 }
6449
6450 /* Warn if different dword support was used. Note, 0 means nothing is
6451 said about the dword support. */
6452 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6453 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6454 if (new_partial == old_partial)
6455 ;
6456
6457 else if (new_partial == 0)
6458 ;
6459
6460 else if (old_partial == 0)
6461 old_flags |= new_partial;
6462
6463 else
6464 {
6465 switch (new_partial)
6466 {
6467 default: strcat (new_opt, " -mdword-?"); break;
6468 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6469 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6470 }
6471
6472 switch (old_partial)
6473 {
6474 default: strcat (old_opt, " -mdword-?"); break;
6475 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6476 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6477 }
6478 }
6479
6480 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6481 feature is used. */
6482 old_flags |= new_flags & (EF_FRV_DOUBLE
6483 | EF_FRV_MEDIA
6484 | EF_FRV_MULADD
6485 | EF_FRV_NON_PIC_RELOCS);
6486
6487 /* If any module was compiled without -G0, clear the G0 bit. */
6488 old_flags = ((old_flags & ~ EF_FRV_G0)
6489 | (old_flags & new_flags & EF_FRV_G0));
6490
6491 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6492 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6493 | (old_flags & new_flags & EF_FRV_NOPACK));
6494
6495 /* We don't have to do anything if the pic flags are the same, or the new
6496 module(s) were compiled with -mlibrary-pic. */
6497 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6498 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6499 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6500 ;
6501
6502 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6503 flags if any from the new module. */
6504 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6505 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6506
6507 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6508 else if (new_partial != 0 && old_partial != 0)
6509 old_flags |= new_partial;
6510
6511 /* One module was compiled for pic and the other was not, see if we have
6512 had any relocations that are not pic-safe. */
6513 else
6514 {
6515 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6516 old_flags |= new_partial;
6517 else
6518 {
6519 old_flags &= ~ EF_FRV_PIC_FLAGS;
6520 #ifndef FRV_NO_PIC_ERROR
6521 error = TRUE;
6522 (*_bfd_error_handler)
6523 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6524 bfd_get_filename (ibfd),
6525 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6526 #endif
6527 }
6528 }
6529
6530 /* Warn if different cpu is used (allow a specific cpu to override
6531 the generic cpu). */
6532 new_partial = (new_flags & EF_FRV_CPU_MASK);
6533 old_partial = (old_flags & EF_FRV_CPU_MASK);
6534 if (frv_elf_arch_extension_p (new_partial, old_partial))
6535 ;
6536
6537 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6538 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6539
6540 else
6541 {
6542 switch (new_partial)
6543 {
6544 default: strcat (new_opt, " -mcpu=?"); break;
6545 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6546 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6547 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6548 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6549 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6550 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6551 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6552 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6553 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6554 }
6555
6556 switch (old_partial)
6557 {
6558 default: strcat (old_opt, " -mcpu=?"); break;
6559 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6560 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6561 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6562 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6563 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6564 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6565 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6566 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6567 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6568 }
6569 }
6570
6571 /* Print out any mismatches from above. */
6572 if (new_opt[0])
6573 {
6574 error = TRUE;
6575 (*_bfd_error_handler)
6576 (_("%s: compiled with %s and linked with modules compiled with %s"),
6577 bfd_get_filename (ibfd), new_opt, old_opt);
6578 }
6579
6580 /* Warn about any other mismatches */
6581 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6582 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6583 if (new_partial != old_partial)
6584 {
6585 old_flags |= new_partial;
6586 error = TRUE;
6587 (*_bfd_error_handler)
6588 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6589 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6590 }
6591 }
6592
6593 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6594 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6595 old_flags |= EF_FRV_NOPACK;
6596
6597 /* Update the old flags now with changes made above. */
6598 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6599 elf_elfheader (obfd)->e_flags = old_flags;
6600 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6601 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6602
6603 if (((new_flags & EF_FRV_FDPIC) == 0)
6604 != (! IS_FDPIC (ibfd)))
6605 {
6606 error = TRUE;
6607 if (IS_FDPIC (obfd))
6608 (*_bfd_error_handler)
6609 (_("%s: cannot link non-fdpic object file into fdpic executable"),
6610 bfd_get_filename (ibfd));
6611 else
6612 (*_bfd_error_handler)
6613 (_("%s: cannot link fdpic object file into non-fdpic executable"),
6614 bfd_get_filename (ibfd));
6615 }
6616
6617 if (error)
6618 bfd_set_error (bfd_error_bad_value);
6619
6620 return !error;
6621 }
6622
6623 \f
6624 static bfd_boolean
6625 frv_elf_print_private_bfd_data (bfd *abfd, void * ptr)
6626 {
6627 FILE *file = (FILE *) ptr;
6628 flagword flags;
6629
6630 BFD_ASSERT (abfd != NULL && ptr != NULL);
6631
6632 /* Print normal ELF private data. */
6633 _bfd_elf_print_private_bfd_data (abfd, ptr);
6634
6635 flags = elf_elfheader (abfd)->e_flags;
6636 fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6637
6638 switch (flags & EF_FRV_CPU_MASK)
6639 {
6640 default: break;
6641 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6642 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6643 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6644 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6645 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6646 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6647 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6648 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6649 }
6650
6651 switch (flags & EF_FRV_GPR_MASK)
6652 {
6653 default: break;
6654 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6655 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6656 }
6657
6658 switch (flags & EF_FRV_FPR_MASK)
6659 {
6660 default: break;
6661 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6662 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6663 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6664 }
6665
6666 switch (flags & EF_FRV_DWORD_MASK)
6667 {
6668 default: break;
6669 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6670 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6671 }
6672
6673 if (flags & EF_FRV_DOUBLE)
6674 fprintf (file, " -mdouble");
6675
6676 if (flags & EF_FRV_MEDIA)
6677 fprintf (file, " -mmedia");
6678
6679 if (flags & EF_FRV_MULADD)
6680 fprintf (file, " -mmuladd");
6681
6682 if (flags & EF_FRV_PIC)
6683 fprintf (file, " -fpic");
6684
6685 if (flags & EF_FRV_BIGPIC)
6686 fprintf (file, " -fPIC");
6687
6688 if (flags & EF_FRV_LIBPIC)
6689 fprintf (file, " -mlibrary-pic");
6690
6691 if (flags & EF_FRV_FDPIC)
6692 fprintf (file, " -mfdpic");
6693
6694 if (flags & EF_FRV_NON_PIC_RELOCS)
6695 fprintf (file, " non-pic relocations");
6696
6697 if (flags & EF_FRV_G0)
6698 fprintf (file, " -G0");
6699
6700 fputc ('\n', file);
6701 return TRUE;
6702 }
6703
6704 \f
6705 /* Support for core dump NOTE sections. */
6706
6707 static bfd_boolean
6708 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6709 {
6710 int offset;
6711 unsigned int raw_size;
6712
6713 switch (note->descsz)
6714 {
6715 default:
6716 return FALSE;
6717
6718 /* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
6719 hardcoded offsets and sizes listed below (and contained within
6720 this lexical block) refer to fields in the target's elf_prstatus
6721 struct. */
6722 case 268:
6723 /* `pr_cursig' is at offset 12. */
6724 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6725
6726 /* `pr_pid' is at offset 24. */
6727 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6728
6729 /* `pr_reg' is at offset 72. */
6730 offset = 72;
6731
6732 /* Most grok_prstatus implementations set `raw_size' to the size
6733 of the pr_reg field. For Linux/FRV, we set `raw_size' to be
6734 the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6735 and `pr_interp_fdpic_loadmap', both of which (by design)
6736 immediately follow `pr_reg'. This will allow these fields to
6737 be viewed by GDB as registers.
6738
6739 `pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
6740 `pr_interp_fdpic_loadmap' are 4 bytes each. */
6741 raw_size = 184 + 4 + 4;
6742
6743 break;
6744 }
6745
6746 /* Make a ".reg/999" section. */
6747 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6748 note->descpos + offset);
6749 }
6750
6751 static bfd_boolean
6752 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6753 {
6754 switch (note->descsz)
6755 {
6756 default:
6757 return FALSE;
6758
6759 /* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
6760 case 124:
6761
6762 /* `pr_fname' is found at offset 28 and is 16 bytes long. */
6763 elf_tdata (abfd)->core->program
6764 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6765
6766 /* `pr_psargs' is found at offset 44 and is 80 bytes long. */
6767 elf_tdata (abfd)->core->command
6768 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6769 }
6770
6771 /* Note that for some reason, a spurious space is tacked
6772 onto the end of the args in some (at least one anyway)
6773 implementations, so strip it off if it exists. */
6774
6775 {
6776 char *command = elf_tdata (abfd)->core->command;
6777 int n = strlen (command);
6778
6779 if (0 < n && command[n - 1] == ' ')
6780 command[n - 1] = '\0';
6781 }
6782
6783 return TRUE;
6784 }
6785 #define ELF_ARCH bfd_arch_frv
6786 #define ELF_TARGET_ID FRV_ELF_DATA
6787 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
6788 #define ELF_MAXPAGESIZE 0x1000
6789
6790 #define TARGET_BIG_SYM frv_elf32_vec
6791 #define TARGET_BIG_NAME "elf32-frv"
6792
6793 #define elf_info_to_howto frv_info_to_howto_rela
6794 #define elf_backend_relocate_section elf32_frv_relocate_section
6795 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
6796 #define elf_backend_check_relocs elf32_frv_check_relocs
6797 #define elf_backend_object_p elf32_frv_object_p
6798 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
6799
6800 #define elf_backend_stack_align 8
6801 #define elf_backend_can_gc_sections 1
6802 #define elf_backend_rela_normal 1
6803
6804 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
6805 #define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
6806 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
6807 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
6808 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
6809
6810 #define elf_backend_want_got_sym 1
6811 #define elf_backend_got_header_size 0
6812 #define elf_backend_want_got_plt 0
6813 #define elf_backend_plt_readonly 1
6814 #define elf_backend_want_plt_sym 0
6815 #define elf_backend_plt_header_size 0
6816
6817 #define elf_backend_finish_dynamic_sections \
6818 elf32_frv_finish_dynamic_sections
6819
6820 #define elf_backend_grok_prstatus elf32_frv_grok_prstatus
6821 #define elf_backend_grok_psinfo elf32_frv_grok_psinfo
6822
6823 #include "elf32-target.h"
6824
6825 #undef ELF_MAXPAGESIZE
6826 #define ELF_MAXPAGESIZE 0x4000
6827
6828 #undef TARGET_BIG_SYM
6829 #define TARGET_BIG_SYM frv_elf32_fdpic_vec
6830 #undef TARGET_BIG_NAME
6831 #define TARGET_BIG_NAME "elf32-frvfdpic"
6832 #undef elf32_bed
6833 #define elf32_bed elf32_frvfdpic_bed
6834
6835 #undef elf_info_to_howto_rel
6836 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
6837
6838 #undef bfd_elf32_bfd_link_hash_table_create
6839 #define bfd_elf32_bfd_link_hash_table_create \
6840 frvfdpic_elf_link_hash_table_create
6841 #undef elf_backend_always_size_sections
6842 #define elf_backend_always_size_sections \
6843 elf32_frvfdpic_always_size_sections
6844
6845 #undef elf_backend_create_dynamic_sections
6846 #define elf_backend_create_dynamic_sections \
6847 elf32_frvfdpic_create_dynamic_sections
6848 #undef elf_backend_adjust_dynamic_symbol
6849 #define elf_backend_adjust_dynamic_symbol \
6850 elf32_frvfdpic_adjust_dynamic_symbol
6851 #undef elf_backend_size_dynamic_sections
6852 #define elf_backend_size_dynamic_sections \
6853 elf32_frvfdpic_size_dynamic_sections
6854 #undef bfd_elf32_bfd_relax_section
6855 #define bfd_elf32_bfd_relax_section \
6856 elf32_frvfdpic_relax_section
6857 #undef elf_backend_finish_dynamic_symbol
6858 #define elf_backend_finish_dynamic_symbol \
6859 elf32_frvfdpic_finish_dynamic_symbol
6860 #undef elf_backend_finish_dynamic_sections
6861 #define elf_backend_finish_dynamic_sections \
6862 elf32_frvfdpic_finish_dynamic_sections
6863
6864 #undef elf_backend_discard_info
6865 #define elf_backend_discard_info \
6866 frvfdpic_elf_discard_info
6867 #undef elf_backend_can_make_relative_eh_frame
6868 #define elf_backend_can_make_relative_eh_frame \
6869 frvfdpic_elf_use_relative_eh_frame
6870 #undef elf_backend_can_make_lsda_relative_eh_frame
6871 #define elf_backend_can_make_lsda_relative_eh_frame \
6872 frvfdpic_elf_use_relative_eh_frame
6873 #undef elf_backend_encode_eh_address
6874 #define elf_backend_encode_eh_address \
6875 frvfdpic_elf_encode_eh_address
6876
6877 #undef elf_backend_may_use_rel_p
6878 #define elf_backend_may_use_rel_p 1
6879 #undef elf_backend_may_use_rela_p
6880 #define elf_backend_may_use_rela_p 1
6881 /* We use REL for dynamic relocations only. */
6882 #undef elf_backend_default_use_rela_p
6883 #define elf_backend_default_use_rela_p 1
6884
6885 #undef elf_backend_omit_section_dynsym
6886 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
6887
6888 #include "elf32-target.h"
GDB Binutils - Deliverables
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