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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 2, /* size (0 = byte, 1 = short, 2 = long) */
38 32, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_bitfield, /* 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 (info->executable && !info->pie
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 && !(info->executable && !info->pie))
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 (info->executable && !info->pie
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 (info->executable && !info->pie
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 (info->executable && !info->pie && sec && sec->output_section)
1597 {
1598 lowword = ad;
1599 highword = frvfdpic_got_section (info)->output_section->vma
1600 + frvfdpic_got_section (info)->output_offset
1601 + frvfdpic_got_initial_offset (info);
1602 }
1603 else if (entry->lazyplt)
1604 {
1605 if (ad)
1606 {
1607 (*info->callbacks->reloc_dangerous)
1608 (info, _("relocation requires zero addend"),
1609 elf_hash_table (info)->dynobj,
1610 frvfdpic_got_section (info),
1611 entry->fd_entry);
1612 return FALSE;
1613 }
1614
1615 fd_lazy_rel_offset = ofst;
1616
1617 /* A function descriptor used for lazy or local resolving is
1618 initialized such that its high word contains the output
1619 section index in which the PLT entries are located, and
1620 the low word contains the address of the lazy PLT entry
1621 entry point, that must be within the memory region
1622 assigned to that section. */
1623 lowword = entry->lzplt_entry + 4
1624 + frvfdpic_plt_section (info)->output_offset
1625 + frvfdpic_plt_section (info)->output_section->vma;
1626 highword = _frvfdpic_osec_to_segment
1627 (output_bfd, frvfdpic_plt_section (info)->output_section);
1628 }
1629 else
1630 {
1631 /* A function descriptor for a local function gets the index
1632 of the section. For a non-local function, it's
1633 disregarded. */
1634 lowword = ad;
1635 if (sec == NULL
1636 || (entry->symndx == -1 && entry->d.h->dynindx != -1
1637 && entry->d.h->dynindx == idx))
1638 highword = 0;
1639 else
1640 highword = _frvfdpic_osec_to_segment
1641 (output_bfd, sec->output_section);
1642 }
1643
1644 bfd_put_32 (output_bfd, lowword,
1645 frvfdpic_got_section (info)->contents
1646 + frvfdpic_got_initial_offset (info)
1647 + entry->fd_entry);
1648 bfd_put_32 (output_bfd, highword,
1649 frvfdpic_got_section (info)->contents
1650 + frvfdpic_got_initial_offset (info)
1651 + entry->fd_entry + 4);
1652 }
1653
1654 /* Generate code for the PLT entry. */
1655 if (entry->plt_entry != (bfd_vma) -1)
1656 {
1657 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1658 + entry->plt_entry;
1659
1660 BFD_ASSERT (entry->fd_entry);
1661
1662 /* Figure out what kind of PLT entry we need, depending on the
1663 location of the function descriptor within the GOT. */
1664 if (entry->fd_entry >= -(1 << (12 - 1))
1665 && entry->fd_entry < (1 << (12 - 1)))
1666 {
1667 /* lddi @(gr15, fd_entry), gr14 */
1668 bfd_put_32 (output_bfd,
1669 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1670 plt_code);
1671 plt_code += 4;
1672 }
1673 else
1674 {
1675 if (entry->fd_entry >= -(1 << (16 - 1))
1676 && entry->fd_entry < (1 << (16 - 1)))
1677 {
1678 /* setlos lo(fd_entry), gr14 */
1679 bfd_put_32 (output_bfd,
1680 0x9cfc0000
1681 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1682 plt_code);
1683 plt_code += 4;
1684 }
1685 else
1686 {
1687 /* sethi.p hi(fd_entry), gr14
1688 setlo lo(fd_entry), gr14 */
1689 bfd_put_32 (output_bfd,
1690 0x1cf80000
1691 | ((entry->fd_entry >> 16)
1692 & (((bfd_vma)1 << 16) - 1)),
1693 plt_code);
1694 plt_code += 4;
1695 bfd_put_32 (output_bfd,
1696 0x9cf40000
1697 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1698 plt_code);
1699 plt_code += 4;
1700 }
1701 /* ldd @(gr14,gr15),gr14 */
1702 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1703 plt_code += 4;
1704 }
1705 /* jmpl @(gr14,gr0) */
1706 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1707 }
1708
1709 /* Generate code for the lazy PLT entry. */
1710 if (entry->lzplt_entry != (bfd_vma) -1)
1711 {
1712 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1713 + entry->lzplt_entry;
1714 bfd_vma resolverStub_addr;
1715
1716 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1717 lzplt_code += 4;
1718
1719 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1720 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1721 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1722 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1723
1724 if (entry->lzplt_entry == resolverStub_addr)
1725 {
1726 /* This is a lazy PLT entry that includes a resolver call. */
1727 /* ldd @(gr15,gr0), gr4
1728 jmpl @(gr4,gr0) */
1729 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1730 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1731 }
1732 else
1733 {
1734 /* bra resolverStub */
1735 bfd_put_32 (output_bfd,
1736 0xc01a0000
1737 | (((resolverStub_addr - entry->lzplt_entry)
1738 / 4) & (((bfd_vma)1 << 16) - 1)),
1739 lzplt_code);
1740 }
1741 }
1742
1743 /* Generate relocation for GOT entry holding the TLS offset. */
1744 if (entry->tlsoff_entry)
1745 {
1746 int idx = dynindx;
1747 bfd_vma ad = addend;
1748
1749 if (entry->symndx != -1
1750 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1751 {
1752 /* If the symbol is dynamic but binds locally, use
1753 section+offset. */
1754 if (sec)
1755 {
1756 if (entry->symndx == -1)
1757 ad += entry->d.h->root.u.def.value;
1758 else
1759 ad += sym->st_value;
1760 ad += sec->output_offset;
1761 if (sec->output_section
1762 && elf_section_data (sec->output_section))
1763 idx = elf_section_data (sec->output_section)->dynindx;
1764 else
1765 idx = 0;
1766 }
1767 }
1768
1769 /* *ABS*+addend is special for TLS relocations, use only the
1770 addend. */
1771 if (info->executable
1772 && idx == 0
1773 && (bfd_is_abs_section (sec)
1774 || bfd_is_und_section (sec)))
1775 ;
1776 /* If we're linking an executable, we can entirely omit the
1777 dynamic relocation if the symbol is local to this module. */
1778 else if (info->executable
1779 && (entry->symndx != -1
1780 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1781 {
1782 if (sec)
1783 ad += sec->output_section->vma - tls_biased_base (info);
1784 }
1785 else
1786 {
1787 if (idx == 0
1788 && (bfd_is_abs_section (sec)
1789 || bfd_is_und_section (sec)))
1790 {
1791 if (! elf_hash_table (info)->tls_sec)
1792 {
1793 (*info->callbacks->undefined_symbol)
1794 (info, "TLS section", elf_hash_table (info)->dynobj,
1795 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1796 return FALSE;
1797 }
1798 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1799 ad += FRVFDPIC_TLS_BIAS;
1800 }
1801 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1802 _bfd_elf_section_offset
1803 (output_bfd, info,
1804 frvfdpic_got_section (info),
1805 frvfdpic_got_initial_offset (info)
1806 + entry->tlsoff_entry)
1807 + frvfdpic_got_section (info)
1808 ->output_section->vma
1809 + frvfdpic_got_section (info)
1810 ->output_offset,
1811 R_FRV_TLSOFF, idx, ad, entry);
1812 }
1813
1814 bfd_put_32 (output_bfd, ad,
1815 frvfdpic_got_section (info)->contents
1816 + frvfdpic_got_initial_offset (info)
1817 + entry->tlsoff_entry);
1818 }
1819
1820 if (entry->tlsdesc_entry)
1821 {
1822 int idx = dynindx;
1823 bfd_vma ad = addend;
1824
1825 /* If the symbol is dynamic but binds locally, use
1826 section+offset. */
1827 if (sec && (entry->symndx != -1
1828 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1829 {
1830 if (entry->symndx == -1)
1831 ad += entry->d.h->root.u.def.value;
1832 else
1833 ad += sym->st_value;
1834 ad += sec->output_offset;
1835 if (sec->output_section && elf_section_data (sec->output_section))
1836 idx = elf_section_data (sec->output_section)->dynindx;
1837 else
1838 idx = 0;
1839 }
1840
1841 /* If we didn't set up a TLS offset entry, but we're linking an
1842 executable and the symbol binds locally, we can use the
1843 module offset in the TLS descriptor in relaxations. */
1844 if (info->executable && ! entry->tlsoff_entry)
1845 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1846
1847 if (info->executable && !info->pie
1848 && ((idx == 0
1849 && (bfd_is_abs_section (sec)
1850 || bfd_is_und_section (sec)))
1851 || entry->symndx != -1
1852 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1853 {
1854 /* *ABS*+addend is special for TLS relocations, use only the
1855 addend for the TLS offset, and take the module id as
1856 0. */
1857 if (idx == 0
1858 && (bfd_is_abs_section (sec)
1859 || bfd_is_und_section (sec)))
1860 ;
1861 /* For other TLS symbols that bind locally, add the section
1862 TLS offset to the addend. */
1863 else if (sec)
1864 ad += sec->output_section->vma - tls_biased_base (info);
1865
1866 bfd_put_32 (output_bfd,
1867 frvfdpic_plt_section (info)->output_section->vma
1868 + frvfdpic_plt_section (info)->output_offset
1869 + frvfdpic_plt_tls_ret_offset (info),
1870 frvfdpic_got_section (info)->contents
1871 + frvfdpic_got_initial_offset (info)
1872 + entry->tlsdesc_entry);
1873
1874 _frvfdpic_add_rofixup (output_bfd,
1875 frvfdpic_gotfixup_section (info),
1876 frvfdpic_got_section (info)
1877 ->output_section->vma
1878 + frvfdpic_got_section (info)
1879 ->output_offset
1880 + frvfdpic_got_initial_offset (info)
1881 + entry->tlsdesc_entry, entry);
1882
1883 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1884
1885 /* We've used one of the reserved fixups, so discount it so
1886 that we can check at the end that we've used them
1887 all. */
1888 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1889
1890 /* While at that, make sure the ret instruction makes to the
1891 right location in the PLT. We could do it only when we
1892 got to 0, but since the check at the end will only print
1893 a warning, make sure we have the ret in place in case the
1894 warning is missed. */
1895 bfd_put_32 (output_bfd, 0xc03a4000,
1896 frvfdpic_plt_section (info)->contents
1897 + frvfdpic_plt_tls_ret_offset (info));
1898 }
1899 else
1900 {
1901 if (idx == 0
1902 && (bfd_is_abs_section (sec)
1903 || bfd_is_und_section (sec)))
1904 {
1905 if (! elf_hash_table (info)->tls_sec)
1906 {
1907 (*info->callbacks->undefined_symbol)
1908 (info, "TLS section", elf_hash_table (info)->dynobj,
1909 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1910 return FALSE;
1911 }
1912 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1913 ad += FRVFDPIC_TLS_BIAS;
1914 }
1915
1916 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1917 _bfd_elf_section_offset
1918 (output_bfd, info,
1919 frvfdpic_got_section (info),
1920 frvfdpic_got_initial_offset (info)
1921 + entry->tlsdesc_entry)
1922 + frvfdpic_got_section (info)
1923 ->output_section->vma
1924 + frvfdpic_got_section (info)
1925 ->output_offset,
1926 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1927
1928 bfd_put_32 (output_bfd, 0,
1929 frvfdpic_got_section (info)->contents
1930 + frvfdpic_got_initial_offset (info)
1931 + entry->tlsdesc_entry);
1932 }
1933
1934 bfd_put_32 (output_bfd, ad,
1935 frvfdpic_got_section (info)->contents
1936 + frvfdpic_got_initial_offset (info)
1937 + entry->tlsdesc_entry + 4);
1938 }
1939
1940 /* Generate code for the get-TLS-offset PLT entry. */
1941 if (entry->tlsplt_entry != (bfd_vma) -1)
1942 {
1943 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1944 + entry->tlsplt_entry;
1945
1946 if (info->executable
1947 && (entry->symndx != -1
1948 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1949 {
1950 int idx = dynindx;
1951 bfd_vma ad = addend;
1952
1953 /* sec may be NULL when referencing an undefweak symbol
1954 while linking a static executable. */
1955 if (!sec)
1956 {
1957 BFD_ASSERT (entry->symndx == -1
1958 && entry->d.h->root.type == bfd_link_hash_undefweak);
1959 }
1960 else
1961 {
1962 if (entry->symndx == -1)
1963 ad += entry->d.h->root.u.def.value;
1964 else
1965 ad += sym->st_value;
1966 ad += sec->output_offset;
1967 if (sec->output_section
1968 && elf_section_data (sec->output_section))
1969 idx = elf_section_data (sec->output_section)->dynindx;
1970 else
1971 idx = 0;
1972 }
1973
1974 /* *ABS*+addend is special for TLS relocations, use only the
1975 addend for the TLS offset, and take the module id as
1976 0. */
1977 if (idx == 0
1978 && (bfd_is_abs_section (sec)
1979 || bfd_is_und_section (sec)))
1980 ;
1981 /* For other TLS symbols that bind locally, add the section
1982 TLS offset to the addend. */
1983 else if (sec)
1984 ad += sec->output_section->vma - tls_biased_base (info);
1985
1986 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
1987 && (bfd_signed_vma)ad < (1 << (16 - 1)))
1988 {
1989 /* setlos lo(ad), gr9 */
1990 bfd_put_32 (output_bfd,
1991 0x92fc0000
1992 | (ad
1993 & (((bfd_vma)1 << 16) - 1)),
1994 plt_code);
1995 plt_code += 4;
1996 }
1997 else
1998 {
1999 /* sethi.p hi(ad), gr9
2000 setlo lo(ad), gr9 */
2001 bfd_put_32 (output_bfd,
2002 0x12f80000
2003 | ((ad >> 16)
2004 & (((bfd_vma)1 << 16) - 1)),
2005 plt_code);
2006 plt_code += 4;
2007 bfd_put_32 (output_bfd,
2008 0x92f40000
2009 | (ad
2010 & (((bfd_vma)1 << 16) - 1)),
2011 plt_code);
2012 plt_code += 4;
2013 }
2014 /* ret */
2015 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2016 }
2017 else if (entry->tlsoff_entry)
2018 {
2019 /* Figure out what kind of PLT entry we need, depending on the
2020 location of the TLS descriptor within the GOT. */
2021 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2022 && entry->tlsoff_entry < (1 << (12 - 1)))
2023 {
2024 /* ldi @(gr15, tlsoff_entry), gr9 */
2025 bfd_put_32 (output_bfd,
2026 0x92c8f000 | (entry->tlsoff_entry
2027 & ((1 << 12) - 1)),
2028 plt_code);
2029 plt_code += 4;
2030 }
2031 else
2032 {
2033 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2034 && entry->tlsoff_entry < (1 << (16 - 1)))
2035 {
2036 /* setlos lo(tlsoff_entry), gr8 */
2037 bfd_put_32 (output_bfd,
2038 0x90fc0000
2039 | (entry->tlsoff_entry
2040 & (((bfd_vma)1 << 16) - 1)),
2041 plt_code);
2042 plt_code += 4;
2043 }
2044 else
2045 {
2046 /* sethi.p hi(tlsoff_entry), gr8
2047 setlo lo(tlsoff_entry), gr8 */
2048 bfd_put_32 (output_bfd,
2049 0x10f80000
2050 | ((entry->tlsoff_entry >> 16)
2051 & (((bfd_vma)1 << 16) - 1)),
2052 plt_code);
2053 plt_code += 4;
2054 bfd_put_32 (output_bfd,
2055 0x90f40000
2056 | (entry->tlsoff_entry
2057 & (((bfd_vma)1 << 16) - 1)),
2058 plt_code);
2059 plt_code += 4;
2060 }
2061 /* ld @(gr15,gr8),gr9 */
2062 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2063 plt_code += 4;
2064 }
2065 /* ret */
2066 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2067 }
2068 else
2069 {
2070 BFD_ASSERT (entry->tlsdesc_entry);
2071
2072 /* Figure out what kind of PLT entry we need, depending on the
2073 location of the TLS descriptor within the GOT. */
2074 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2075 && entry->tlsdesc_entry < (1 << (12 - 1)))
2076 {
2077 /* lddi @(gr15, tlsdesc_entry), gr8 */
2078 bfd_put_32 (output_bfd,
2079 0x90ccf000 | (entry->tlsdesc_entry
2080 & ((1 << 12) - 1)),
2081 plt_code);
2082 plt_code += 4;
2083 }
2084 else
2085 {
2086 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2087 && entry->tlsdesc_entry < (1 << (16 - 1)))
2088 {
2089 /* setlos lo(tlsdesc_entry), gr8 */
2090 bfd_put_32 (output_bfd,
2091 0x90fc0000
2092 | (entry->tlsdesc_entry
2093 & (((bfd_vma)1 << 16) - 1)),
2094 plt_code);
2095 plt_code += 4;
2096 }
2097 else
2098 {
2099 /* sethi.p hi(tlsdesc_entry), gr8
2100 setlo lo(tlsdesc_entry), gr8 */
2101 bfd_put_32 (output_bfd,
2102 0x10f80000
2103 | ((entry->tlsdesc_entry >> 16)
2104 & (((bfd_vma)1 << 16) - 1)),
2105 plt_code);
2106 plt_code += 4;
2107 bfd_put_32 (output_bfd,
2108 0x90f40000
2109 | (entry->tlsdesc_entry
2110 & (((bfd_vma)1 << 16) - 1)),
2111 plt_code);
2112 plt_code += 4;
2113 }
2114 /* ldd @(gr15,gr8),gr8 */
2115 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2116 plt_code += 4;
2117 }
2118 /* jmpl @(gr8,gr0) */
2119 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2120 }
2121 }
2122
2123 return TRUE;
2124 }
2125
2126 /* Handle an FRV small data reloc. */
2127
2128 static bfd_reloc_status_type
2129 elf32_frv_relocate_gprel12 (struct bfd_link_info *info,
2130 bfd *input_bfd,
2131 asection *input_section,
2132 Elf_Internal_Rela *relocation,
2133 bfd_byte *contents,
2134 bfd_vma value)
2135 {
2136 bfd_vma insn;
2137 bfd_vma gp;
2138 struct bfd_link_hash_entry *h;
2139
2140 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2141
2142 gp = (h->u.def.value
2143 + h->u.def.section->output_section->vma
2144 + h->u.def.section->output_offset);
2145
2146 value -= input_section->output_section->vma;
2147 value -= (gp - input_section->output_section->vma);
2148
2149 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2150
2151 value += relocation->r_addend;
2152
2153 if ((long) value > 0x7ff || (long) value < -0x800)
2154 return bfd_reloc_overflow;
2155
2156 bfd_put_32 (input_bfd,
2157 (insn & 0xfffff000) | (value & 0xfff),
2158 contents + relocation->r_offset);
2159
2160 return bfd_reloc_ok;
2161 }
2162
2163 /* Handle an FRV small data reloc. for the u12 field. */
2164
2165 static bfd_reloc_status_type
2166 elf32_frv_relocate_gprelu12 (struct bfd_link_info *info,
2167 bfd *input_bfd,
2168 asection *input_section,
2169 Elf_Internal_Rela *relocation,
2170 bfd_byte *contents,
2171 bfd_vma value)
2172 {
2173 bfd_vma insn;
2174 bfd_vma gp;
2175 struct bfd_link_hash_entry *h;
2176 bfd_vma mask;
2177
2178 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2179
2180 gp = (h->u.def.value
2181 + h->u.def.section->output_section->vma
2182 + h->u.def.section->output_offset);
2183
2184 value -= input_section->output_section->vma;
2185 value -= (gp - input_section->output_section->vma);
2186
2187 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2188
2189 value += relocation->r_addend;
2190
2191 if ((long) value > 0x7ff || (long) value < -0x800)
2192 return bfd_reloc_overflow;
2193
2194 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2195 mask = 0x3f03f;
2196 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2197
2198 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2199
2200 return bfd_reloc_ok;
2201 }
2202
2203 /* Handle an FRV ELF HI16 reloc. */
2204
2205 static bfd_reloc_status_type
2206 elf32_frv_relocate_hi16 (bfd *input_bfd,
2207 Elf_Internal_Rela *relhi,
2208 bfd_byte *contents,
2209 bfd_vma value)
2210 {
2211 bfd_vma insn;
2212
2213 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2214
2215 value += relhi->r_addend;
2216 value = ((value >> 16) & 0xffff);
2217
2218 insn = (insn & 0xffff0000) | value;
2219
2220 if ((long) value > 0xffff || (long) value < -0x10000)
2221 return bfd_reloc_overflow;
2222
2223 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2224 return bfd_reloc_ok;
2225
2226 }
2227 static bfd_reloc_status_type
2228 elf32_frv_relocate_lo16 (bfd *input_bfd,
2229 Elf_Internal_Rela *rello,
2230 bfd_byte *contents,
2231 bfd_vma value)
2232 {
2233 bfd_vma insn;
2234
2235 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2236
2237 value += rello->r_addend;
2238 value = value & 0xffff;
2239
2240 insn = (insn & 0xffff0000) | value;
2241
2242 if ((long) value > 0xffff || (long) value < -0x10000)
2243 return bfd_reloc_overflow;
2244
2245 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2246 return bfd_reloc_ok;
2247 }
2248
2249 /* Perform the relocation for the CALL label24 instruction. */
2250
2251 static bfd_reloc_status_type
2252 elf32_frv_relocate_label24 (bfd *input_bfd,
2253 asection *input_section,
2254 Elf_Internal_Rela *rello,
2255 bfd_byte *contents,
2256 bfd_vma value)
2257 {
2258 bfd_vma insn;
2259 bfd_vma label6;
2260 bfd_vma label18;
2261
2262 /* The format for the call instruction is:
2263
2264 0 000000 0001111 000000000000000000
2265 label6 opcode label18
2266
2267 The branch calculation is: pc + (4*label24)
2268 where label24 is the concatenation of label6 and label18. */
2269
2270 /* Grab the instruction. */
2271 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2272
2273 value -= input_section->output_section->vma + input_section->output_offset;
2274 value -= rello->r_offset;
2275 value += rello->r_addend;
2276
2277 value = value >> 2;
2278
2279 label6 = value & 0xfc0000;
2280 label6 = label6 << 7;
2281
2282 label18 = value & 0x3ffff;
2283
2284 insn = insn & 0x803c0000;
2285 insn = insn | label6;
2286 insn = insn | label18;
2287
2288 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2289
2290 return bfd_reloc_ok;
2291 }
2292
2293 static bfd_reloc_status_type
2294 elf32_frv_relocate_gprelhi (struct bfd_link_info *info,
2295 bfd *input_bfd,
2296 asection *input_section,
2297 Elf_Internal_Rela *relocation,
2298 bfd_byte *contents,
2299 bfd_vma value)
2300 {
2301 bfd_vma insn;
2302 bfd_vma gp;
2303 struct bfd_link_hash_entry *h;
2304
2305 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2306
2307 gp = (h->u.def.value
2308 + h->u.def.section->output_section->vma
2309 + h->u.def.section->output_offset);
2310
2311 value -= input_section->output_section->vma;
2312 value -= (gp - input_section->output_section->vma);
2313 value += relocation->r_addend;
2314 value = ((value >> 16) & 0xffff);
2315
2316 if ((long) value > 0xffff || (long) value < -0x10000)
2317 return bfd_reloc_overflow;
2318
2319 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2320 insn = (insn & 0xffff0000) | value;
2321
2322 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2323 return bfd_reloc_ok;
2324 }
2325
2326 static bfd_reloc_status_type
2327 elf32_frv_relocate_gprello (struct bfd_link_info *info,
2328 bfd *input_bfd,
2329 asection *input_section,
2330 Elf_Internal_Rela *relocation,
2331 bfd_byte *contents,
2332 bfd_vma value)
2333 {
2334 bfd_vma insn;
2335 bfd_vma gp;
2336 struct bfd_link_hash_entry *h;
2337
2338 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2339
2340 gp = (h->u.def.value
2341 + h->u.def.section->output_section->vma
2342 + h->u.def.section->output_offset);
2343
2344 value -= input_section->output_section->vma;
2345 value -= (gp - input_section->output_section->vma);
2346 value += relocation->r_addend;
2347 value = value & 0xffff;
2348
2349 if ((long) value > 0xffff || (long) value < -0x10000)
2350 return bfd_reloc_overflow;
2351
2352 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2353 insn = (insn & 0xffff0000) | value;
2354
2355 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2356
2357 return bfd_reloc_ok;
2358 }
2359
2360 static reloc_howto_type *
2361 frv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2362 bfd_reloc_code_real_type code)
2363 {
2364 switch (code)
2365 {
2366 default:
2367 break;
2368
2369 case BFD_RELOC_NONE:
2370 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2371
2372 case BFD_RELOC_32:
2373 if (elf_elfheader (abfd)->e_type == ET_EXEC
2374 || elf_elfheader (abfd)->e_type == ET_DYN)
2375 return &elf32_frv_rel_32_howto;
2376 /* Fall through. */
2377 case BFD_RELOC_CTOR:
2378 return &elf32_frv_howto_table[ (int) R_FRV_32];
2379
2380 case BFD_RELOC_FRV_LABEL16:
2381 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2382
2383 case BFD_RELOC_FRV_LABEL24:
2384 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2385
2386 case BFD_RELOC_FRV_LO16:
2387 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2388
2389 case BFD_RELOC_FRV_HI16:
2390 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2391
2392 case BFD_RELOC_FRV_GPREL12:
2393 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2394
2395 case BFD_RELOC_FRV_GPRELU12:
2396 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2397
2398 case BFD_RELOC_FRV_GPREL32:
2399 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2400
2401 case BFD_RELOC_FRV_GPRELHI:
2402 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2403
2404 case BFD_RELOC_FRV_GPRELLO:
2405 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2406
2407 case BFD_RELOC_FRV_GOT12:
2408 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2409
2410 case BFD_RELOC_FRV_GOTHI:
2411 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2412
2413 case BFD_RELOC_FRV_GOTLO:
2414 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2415
2416 case BFD_RELOC_FRV_FUNCDESC:
2417 if (elf_elfheader (abfd)->e_type == ET_EXEC
2418 || elf_elfheader (abfd)->e_type == ET_DYN)
2419 return &elf32_frv_rel_funcdesc_howto;
2420 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2421
2422 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2423 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2424
2425 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2426 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2427
2428 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2429 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2430
2431 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2432 if (elf_elfheader (abfd)->e_type == ET_EXEC
2433 || elf_elfheader (abfd)->e_type == ET_DYN)
2434 return &elf32_frv_rel_funcdesc_value_howto;
2435 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2436
2437 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2438 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2439
2440 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2441 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2442
2443 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2444 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2445
2446 case BFD_RELOC_FRV_GOTOFF12:
2447 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2448
2449 case BFD_RELOC_FRV_GOTOFFHI:
2450 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2451
2452 case BFD_RELOC_FRV_GOTOFFLO:
2453 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2454
2455 case BFD_RELOC_FRV_GETTLSOFF:
2456 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2457
2458 case BFD_RELOC_FRV_TLSDESC_VALUE:
2459 if (elf_elfheader (abfd)->e_type == ET_EXEC
2460 || elf_elfheader (abfd)->e_type == ET_DYN)
2461 return &elf32_frv_rel_tlsdesc_value_howto;
2462 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2463
2464 case BFD_RELOC_FRV_GOTTLSDESC12:
2465 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2466
2467 case BFD_RELOC_FRV_GOTTLSDESCHI:
2468 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2469
2470 case BFD_RELOC_FRV_GOTTLSDESCLO:
2471 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2472
2473 case BFD_RELOC_FRV_TLSMOFF12:
2474 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2475
2476 case BFD_RELOC_FRV_TLSMOFFHI:
2477 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2478
2479 case BFD_RELOC_FRV_TLSMOFFLO:
2480 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2481
2482 case BFD_RELOC_FRV_GOTTLSOFF12:
2483 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2484
2485 case BFD_RELOC_FRV_GOTTLSOFFHI:
2486 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2487
2488 case BFD_RELOC_FRV_GOTTLSOFFLO:
2489 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2490
2491 case BFD_RELOC_FRV_TLSOFF:
2492 if (elf_elfheader (abfd)->e_type == ET_EXEC
2493 || elf_elfheader (abfd)->e_type == ET_DYN)
2494 return &elf32_frv_rel_tlsoff_howto;
2495 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2496
2497 case BFD_RELOC_FRV_TLSDESC_RELAX:
2498 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2499
2500 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2501 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2502
2503 case BFD_RELOC_FRV_TLSOFF_RELAX:
2504 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2505
2506 case BFD_RELOC_FRV_TLSMOFF:
2507 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2508
2509 case BFD_RELOC_VTABLE_INHERIT:
2510 return &elf32_frv_vtinherit_howto;
2511
2512 case BFD_RELOC_VTABLE_ENTRY:
2513 return &elf32_frv_vtentry_howto;
2514 }
2515
2516 return NULL;
2517 }
2518
2519 static reloc_howto_type *
2520 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2521 {
2522 unsigned int i;
2523
2524 for (i = 0;
2525 i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2526 i++)
2527 if (elf32_frv_howto_table[i].name != NULL
2528 && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2529 return &elf32_frv_howto_table[i];
2530
2531 if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2532 return &elf32_frv_vtinherit_howto;
2533 if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2534 return &elf32_frv_vtentry_howto;
2535
2536 return NULL;
2537 }
2538
2539 /* Set the howto pointer for an FRV ELF reloc. */
2540
2541 static void
2542 frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2543 arelent *cache_ptr,
2544 Elf_Internal_Rela *dst)
2545 {
2546 unsigned int r_type;
2547
2548 r_type = ELF32_R_TYPE (dst->r_info);
2549 switch (r_type)
2550 {
2551 case R_FRV_GNU_VTINHERIT:
2552 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2553 break;
2554
2555 case R_FRV_GNU_VTENTRY:
2556 cache_ptr->howto = &elf32_frv_vtentry_howto;
2557 break;
2558
2559 default:
2560 if (r_type >= (unsigned int) R_FRV_max)
2561 {
2562 _bfd_error_handler (_("%A: invalid FRV reloc number: %d"), abfd, r_type);
2563 r_type = 0;
2564 }
2565 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2566 break;
2567 }
2568 }
2569
2570 /* Set the howto pointer for an FRV ELF REL reloc. */
2571 static void
2572 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2573 arelent *cache_ptr, Elf_Internal_Rela *dst)
2574 {
2575 unsigned int r_type;
2576
2577 r_type = ELF32_R_TYPE (dst->r_info);
2578 switch (r_type)
2579 {
2580 case R_FRV_32:
2581 cache_ptr->howto = &elf32_frv_rel_32_howto;
2582 break;
2583
2584 case R_FRV_FUNCDESC:
2585 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2586 break;
2587
2588 case R_FRV_FUNCDESC_VALUE:
2589 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2590 break;
2591
2592 case R_FRV_TLSDESC_VALUE:
2593 cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2594 break;
2595
2596 case R_FRV_TLSOFF:
2597 cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2598 break;
2599
2600 default:
2601 cache_ptr->howto = NULL;
2602 break;
2603 }
2604 }
2605 \f
2606 /* Perform a single relocation. By default we use the standard BFD
2607 routines, but a few relocs, we have to do them ourselves. */
2608
2609 static bfd_reloc_status_type
2610 frv_final_link_relocate (reloc_howto_type *howto,
2611 bfd *input_bfd,
2612 asection *input_section,
2613 bfd_byte *contents,
2614 Elf_Internal_Rela *rel,
2615 bfd_vma relocation)
2616 {
2617 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2618 contents, rel->r_offset, relocation,
2619 rel->r_addend);
2620 }
2621
2622 \f
2623 /* Relocate an FRV ELF section.
2624
2625 The RELOCATE_SECTION function is called by the new ELF backend linker
2626 to handle the relocations for a section.
2627
2628 The relocs are always passed as Rela structures; if the section
2629 actually uses Rel structures, the r_addend field will always be
2630 zero.
2631
2632 This function is responsible for adjusting the section contents as
2633 necessary, and (if using Rela relocs and generating a relocatable
2634 output file) adjusting the reloc addend as necessary.
2635
2636 This function does not have to worry about setting the reloc
2637 address or the reloc symbol index.
2638
2639 LOCAL_SYMS is a pointer to the swapped in local symbols.
2640
2641 LOCAL_SECTIONS is an array giving the section in the input file
2642 corresponding to the st_shndx field of each local symbol.
2643
2644 The global hash table entry for the global symbols can be found
2645 via elf_sym_hashes (input_bfd).
2646
2647 When generating relocatable output, this function must handle
2648 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2649 going to be the section symbol corresponding to the output
2650 section, which means that the addend must be adjusted
2651 accordingly. */
2652
2653 static bfd_boolean
2654 elf32_frv_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2655 struct bfd_link_info *info,
2656 bfd *input_bfd,
2657 asection *input_section,
2658 bfd_byte *contents,
2659 Elf_Internal_Rela *relocs,
2660 Elf_Internal_Sym *local_syms,
2661 asection **local_sections)
2662 {
2663 Elf_Internal_Shdr *symtab_hdr;
2664 struct elf_link_hash_entry **sym_hashes;
2665 Elf_Internal_Rela *rel;
2666 Elf_Internal_Rela *relend;
2667 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2668 check_segment[2];
2669 int silence_segment_error = !(info->shared || info->pie);
2670 unsigned long insn;
2671
2672 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2673 sym_hashes = elf_sym_hashes (input_bfd);
2674 relend = relocs + input_section->reloc_count;
2675
2676 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2677 input_section->output_section);
2678 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2679 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2680 frvfdpic_got_section (info)
2681 ->output_section);
2682 else
2683 got_segment = -1;
2684 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2685 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2686 frvfdpic_gotfixup_section (info)
2687 ->output_section);
2688 else
2689 gprel_segment = -1;
2690 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2691 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2692 frvfdpic_plt_section (info)
2693 ->output_section);
2694 else
2695 plt_segment = -1;
2696 if (elf_hash_table (info)->tls_sec)
2697 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2698 elf_hash_table (info)->tls_sec);
2699 else
2700 tls_segment = -1;
2701
2702 for (rel = relocs; rel < relend; rel ++)
2703 {
2704 reloc_howto_type *howto;
2705 unsigned long r_symndx;
2706 Elf_Internal_Sym *sym;
2707 asection *sec;
2708 struct elf_link_hash_entry *h;
2709 bfd_vma relocation;
2710 bfd_reloc_status_type r;
2711 const char *name;
2712 int r_type;
2713 asection *osec;
2714 struct frvfdpic_relocs_info *picrel;
2715 bfd_vma orig_addend = rel->r_addend;
2716
2717 r_type = ELF32_R_TYPE (rel->r_info);
2718
2719 if ( r_type == R_FRV_GNU_VTINHERIT
2720 || r_type == R_FRV_GNU_VTENTRY)
2721 continue;
2722
2723 r_symndx = ELF32_R_SYM (rel->r_info);
2724 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2725 h = NULL;
2726 sym = NULL;
2727 sec = NULL;
2728
2729 if (r_symndx < symtab_hdr->sh_info)
2730 {
2731 sym = local_syms + r_symndx;
2732 osec = sec = local_sections [r_symndx];
2733 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2734
2735 name = bfd_elf_string_from_elf_section
2736 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2737 if (name == NULL || name[0] == 0)
2738 name = bfd_section_name (input_bfd, sec);
2739 }
2740 else
2741 {
2742 bfd_boolean warned, ignored;
2743 bfd_boolean unresolved_reloc;
2744
2745 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2746 r_symndx, symtab_hdr, sym_hashes,
2747 h, sec, relocation,
2748 unresolved_reloc, warned, ignored);
2749 osec = sec;
2750 name = h->root.root.string;
2751 }
2752
2753 if (sec != NULL && discarded_section (sec))
2754 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2755 rel, 1, relend, howto, 0, contents);
2756
2757 if (info->relocatable)
2758 continue;
2759
2760 if (r_type != R_FRV_TLSMOFF
2761 && h != NULL
2762 && (h->root.type == bfd_link_hash_defined
2763 || h->root.type == bfd_link_hash_defweak)
2764 && !FRVFDPIC_SYM_LOCAL (info, h))
2765 {
2766 osec = sec = NULL;
2767 relocation = 0;
2768 }
2769
2770 switch (r_type)
2771 {
2772 case R_FRV_LABEL24:
2773 case R_FRV_32:
2774 if (! IS_FDPIC (output_bfd))
2775 goto non_fdpic;
2776
2777 case R_FRV_GOT12:
2778 case R_FRV_GOTHI:
2779 case R_FRV_GOTLO:
2780 case R_FRV_FUNCDESC_GOT12:
2781 case R_FRV_FUNCDESC_GOTHI:
2782 case R_FRV_FUNCDESC_GOTLO:
2783 case R_FRV_GOTOFF12:
2784 case R_FRV_GOTOFFHI:
2785 case R_FRV_GOTOFFLO:
2786 case R_FRV_FUNCDESC_GOTOFF12:
2787 case R_FRV_FUNCDESC_GOTOFFHI:
2788 case R_FRV_FUNCDESC_GOTOFFLO:
2789 case R_FRV_FUNCDESC:
2790 case R_FRV_FUNCDESC_VALUE:
2791 case R_FRV_GETTLSOFF:
2792 case R_FRV_TLSDESC_VALUE:
2793 case R_FRV_GOTTLSDESC12:
2794 case R_FRV_GOTTLSDESCHI:
2795 case R_FRV_GOTTLSDESCLO:
2796 case R_FRV_TLSMOFF12:
2797 case R_FRV_TLSMOFFHI:
2798 case R_FRV_TLSMOFFLO:
2799 case R_FRV_GOTTLSOFF12:
2800 case R_FRV_GOTTLSOFFHI:
2801 case R_FRV_GOTTLSOFFLO:
2802 case R_FRV_TLSOFF:
2803 case R_FRV_TLSDESC_RELAX:
2804 case R_FRV_GETTLSOFF_RELAX:
2805 case R_FRV_TLSOFF_RELAX:
2806 case R_FRV_TLSMOFF:
2807 if (h != NULL)
2808 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2809 (info), input_bfd, h,
2810 orig_addend, INSERT);
2811 else
2812 /* In order to find the entry we created before, we must
2813 use the original addend, not the one that may have been
2814 modified by _bfd_elf_rela_local_sym(). */
2815 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2816 (info), input_bfd, r_symndx,
2817 orig_addend, INSERT);
2818 if (! picrel)
2819 return FALSE;
2820
2821 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2822 osec, sym,
2823 rel->r_addend))
2824 {
2825 info->callbacks->einfo
2826 (_("%H: relocation to `%s+%v'"
2827 " may have caused the error above\n"),
2828 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2829 return FALSE;
2830 }
2831
2832 break;
2833
2834 default:
2835 non_fdpic:
2836 picrel = NULL;
2837 if (h
2838 && ! FRVFDPIC_SYM_LOCAL (info, h)
2839 && _bfd_elf_section_offset (output_bfd, info, input_section,
2840 rel->r_offset) != (bfd_vma) -1)
2841 {
2842 info->callbacks->einfo
2843 (_("%H: relocation references symbol"
2844 " not defined in the module\n"),
2845 input_bfd, input_section, rel->r_offset);
2846 return FALSE;
2847 }
2848 break;
2849 }
2850
2851 switch (r_type)
2852 {
2853 case R_FRV_GETTLSOFF:
2854 case R_FRV_TLSDESC_VALUE:
2855 case R_FRV_GOTTLSDESC12:
2856 case R_FRV_GOTTLSDESCHI:
2857 case R_FRV_GOTTLSDESCLO:
2858 case R_FRV_TLSMOFF12:
2859 case R_FRV_TLSMOFFHI:
2860 case R_FRV_TLSMOFFLO:
2861 case R_FRV_GOTTLSOFF12:
2862 case R_FRV_GOTTLSOFFHI:
2863 case R_FRV_GOTTLSOFFLO:
2864 case R_FRV_TLSOFF:
2865 case R_FRV_TLSDESC_RELAX:
2866 case R_FRV_GETTLSOFF_RELAX:
2867 case R_FRV_TLSOFF_RELAX:
2868 case R_FRV_TLSMOFF:
2869 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2870 relocation += tls_biased_base (info);
2871 break;
2872
2873 default:
2874 break;
2875 }
2876
2877 /* Try to apply TLS relaxations. */
2878 if (1)
2879 switch (r_type)
2880 {
2881
2882 #define LOCAL_EXEC_P(info, picrel) \
2883 ((info)->executable \
2884 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2885 #define INITIAL_EXEC_P(info, picrel) \
2886 (((info)->executable || (info)->flags & DF_STATIC_TLS) \
2887 && (picrel)->tlsoff_entry)
2888
2889 #define IN_RANGE_FOR_OFST12_P(value) \
2890 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2891 #define IN_RANGE_FOR_SETLOS_P(value) \
2892 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2893 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2894 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2895
2896 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2897 (LOCAL_EXEC_P ((info), (picrel)) \
2898 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2899 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2900 (INITIAL_EXEC_P ((info), (picrel)) \
2901 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2902
2903 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2904 (LOCAL_EXEC_P ((info), (picrel)))
2905 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2906 (INITIAL_EXEC_P ((info), (picrel)))
2907
2908 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2909 (LOCAL_EXEC_P ((info), (picrel)) \
2910 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2911
2912 case R_FRV_GETTLSOFF:
2913 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2914
2915 /* Is this a call instruction? */
2916 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2917 {
2918 info->callbacks->einfo
2919 (_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
2920 input_bfd, input_section, rel->r_offset);
2921 return FALSE;
2922 }
2923
2924 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2925 relocation + rel->r_addend))
2926 {
2927 /* Replace the call instruction (except the packing bit)
2928 with setlos #tlsmofflo(symbol+offset), gr9. */
2929 insn &= (unsigned long)0x80000000;
2930 insn |= (unsigned long)0x12fc0000;
2931 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2932
2933 r_type = R_FRV_TLSMOFFLO;
2934 howto = elf32_frv_howto_table + r_type;
2935 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2936 }
2937
2938 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
2939 {
2940 /* Replace the call instruction (except the packing bit)
2941 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
2942 insn &= (unsigned long)0x80000000;
2943 insn |= (unsigned long)0x12c8f000;
2944 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2945
2946 r_type = R_FRV_GOTTLSOFF12;
2947 howto = elf32_frv_howto_table + r_type;
2948 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2949 }
2950
2951 break;
2952
2953 case R_FRV_GOTTLSDESC12:
2954 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2955
2956 /* Is this an lddi instruction? */
2957 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
2958 {
2959 info->callbacks->einfo
2960 (_("%H: R_FRV_GOTTLSDESC12"
2961 " not applied to an lddi instruction\n"),
2962 input_bfd, input_section, rel->r_offset);
2963 return FALSE;
2964 }
2965
2966 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2967 relocation + rel->r_addend)
2968 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
2969 info))
2970 {
2971 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2972 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
2973 Preserve the packing bit. */
2974 insn = (insn & (unsigned long)0x80000000)
2975 | ((insn + (unsigned long)0x02000000)
2976 & (unsigned long)0x7e000000);
2977 insn |= (unsigned long)0x00fc0000;
2978 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2979
2980 r_type = R_FRV_TLSMOFFLO;
2981 howto = elf32_frv_howto_table + r_type;
2982 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2983 }
2984
2985 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2986 relocation + rel->r_addend))
2987 {
2988 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2989 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
2990 Preserve the packing bit. */
2991 insn = (insn & (unsigned long)0x80000000)
2992 | ((insn + (unsigned long)0x02000000)
2993 & (unsigned long)0x7e000000);
2994 insn |= (unsigned long)0x00f80000;
2995 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2996
2997 r_type = R_FRV_TLSMOFFHI;
2998 howto = elf32_frv_howto_table + r_type;
2999 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3000 }
3001
3002 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3003 {
3004 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3005 with ldi @(grB, #gottlsoff12(symbol+offset),
3006 gr<C+1>. Preserve the packing bit. If gottlsoff12
3007 overflows, we'll error out, but that's sort-of ok,
3008 since we'd started with gottlsdesc12, that's actually
3009 more demanding. Compiling with -fPIE instead of
3010 -fpie would fix it; linking with --relax should fix
3011 it as well. */
3012 insn = (insn & (unsigned long)0x80cbf000)
3013 | ((insn + (unsigned long)0x02000000)
3014 & (unsigned long)0x7e000000);
3015 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3016
3017 r_type = R_FRV_GOTTLSOFF12;
3018 howto = elf32_frv_howto_table + r_type;
3019 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3020 }
3021
3022 break;
3023
3024 case R_FRV_GOTTLSDESCHI:
3025 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3026
3027 /* Is this a sethi instruction? */
3028 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3029 {
3030 info->callbacks->einfo
3031 (_("%H: R_FRV_GOTTLSDESCHI"
3032 " not applied to a sethi instruction\n"),
3033 input_bfd, input_section, rel->r_offset);
3034 return FALSE;
3035 }
3036
3037 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3038 relocation + rel->r_addend)
3039 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3040 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3041 {
3042 /* Replace sethi with a nop. Preserve the packing bit. */
3043 insn &= (unsigned long)0x80000000;
3044 insn |= (unsigned long)0x00880000;
3045 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3046
3047 /* Nothing to relocate. */
3048 continue;
3049 }
3050
3051 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3052 {
3053 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3054 r_type = R_FRV_GOTTLSOFFHI;
3055 howto = elf32_frv_howto_table + r_type;
3056 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3057 }
3058
3059 break;
3060
3061 case R_FRV_GOTTLSDESCLO:
3062 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3063
3064 /* Is this a setlo or setlos instruction? */
3065 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3066 {
3067 info->callbacks->einfo
3068 (_("%H: R_FRV_GOTTLSDESCLO"
3069 " not applied to a setlo or setlos instruction\n"),
3070 input_bfd, input_section, rel->r_offset);
3071 return FALSE;
3072 }
3073
3074 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3075 relocation + rel->r_addend)
3076 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3077 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3078 {
3079 /* Replace setlo/setlos with a nop. Preserve the
3080 packing bit. */
3081 insn &= (unsigned long)0x80000000;
3082 insn |= (unsigned long)0x00880000;
3083 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3084
3085 /* Nothing to relocate. */
3086 continue;
3087 }
3088
3089 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3090 {
3091 /* If the corresponding sethi (if it exists) decayed
3092 to a nop, make sure this becomes (or already is) a
3093 setlos, not setlo. */
3094 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3095 {
3096 insn |= (unsigned long)0x00080000;
3097 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3098 }
3099
3100 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3101 r_type = R_FRV_GOTTLSOFFLO;
3102 howto = elf32_frv_howto_table + r_type;
3103 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3104 }
3105
3106 break;
3107
3108 case R_FRV_TLSDESC_RELAX:
3109 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3110
3111 /* Is this an ldd instruction? */
3112 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3113 {
3114 info->callbacks->einfo
3115 (_("%H: R_FRV_TLSDESC_RELAX"
3116 " not applied to an ldd instruction\n"),
3117 input_bfd, input_section, rel->r_offset);
3118 return FALSE;
3119 }
3120
3121 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3122 relocation + rel->r_addend)
3123 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3124 info))
3125 {
3126 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3127 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3128 Preserve the packing bit. */
3129 insn = (insn & (unsigned long)0x80000000)
3130 | ((insn + (unsigned long)0x02000000)
3131 & (unsigned long)0x7e000000);
3132 insn |= (unsigned long)0x00fc0000;
3133 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3134
3135 r_type = R_FRV_TLSMOFFLO;
3136 howto = elf32_frv_howto_table + r_type;
3137 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3138 }
3139
3140 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3141 relocation + rel->r_addend))
3142 {
3143 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3144 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3145 Preserve the packing bit. */
3146 insn = (insn & (unsigned long)0x80000000)
3147 | ((insn + (unsigned long)0x02000000)
3148 & (unsigned long)0x7e000000);
3149 insn |= (unsigned long)0x00f80000;
3150 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3151
3152 r_type = R_FRV_TLSMOFFHI;
3153 howto = elf32_frv_howto_table + r_type;
3154 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3155 }
3156
3157 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3158 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3159 {
3160 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3161 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3162 Preserve the packing bit. */
3163 insn = (insn & (unsigned long)0x8003f000)
3164 | (unsigned long)0x00c80000
3165 | ((insn + (unsigned long)0x02000000)
3166 & (unsigned long)0x7e000000);
3167 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3168
3169 r_type = R_FRV_GOTTLSOFF12;
3170 howto = elf32_frv_howto_table + r_type;
3171 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3172 }
3173
3174 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3175 {
3176 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3177 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3178 Preserve the packing bit. */
3179 insn = (insn & (unsigned long)0x81ffffbf)
3180 | ((insn + (unsigned long)0x02000000)
3181 & (unsigned long)0x7e000000);
3182 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3183
3184 /* #tlsoff(symbol+offset) is just a relaxation
3185 annotation, so there's nothing left to
3186 relocate. */
3187 continue;
3188 }
3189
3190 break;
3191
3192 case R_FRV_GETTLSOFF_RELAX:
3193 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3194
3195 /* Is this a calll or callil instruction? */
3196 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3197 {
3198 info->callbacks->einfo
3199 (_("%H: R_FRV_GETTLSOFF_RELAX"
3200 " not applied to a calll instruction\n"),
3201 input_bfd, input_section, rel->r_offset);
3202 return FALSE;
3203 }
3204
3205 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3206 relocation + rel->r_addend)
3207 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3208 info))
3209 {
3210 /* Replace calll with a nop. Preserve the packing bit. */
3211 insn &= (unsigned long)0x80000000;
3212 insn |= (unsigned long)0x00880000;
3213 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3214
3215 /* Nothing to relocate. */
3216 continue;
3217 }
3218
3219 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3220 relocation + rel->r_addend))
3221 {
3222 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3223 Preserve the packing bit. */
3224 insn &= (unsigned long)0x80000000;
3225 insn |= (unsigned long)0x12f40000;
3226 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3227
3228 r_type = R_FRV_TLSMOFFLO;
3229 howto = elf32_frv_howto_table + r_type;
3230 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3231 }
3232
3233 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3234 {
3235 /* Replace calll with a nop. Preserve the packing bit. */
3236 insn &= (unsigned long)0x80000000;
3237 insn |= (unsigned long)0x00880000;
3238 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3239
3240 /* Nothing to relocate. */
3241 continue;
3242 }
3243
3244 break;
3245
3246 case R_FRV_GOTTLSOFF12:
3247 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3248
3249 /* Is this an ldi instruction? */
3250 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3251 {
3252 info->callbacks->einfo
3253 (_("%H: R_FRV_GOTTLSOFF12"
3254 " not applied to an ldi instruction\n"),
3255 input_bfd, input_section, rel->r_offset);
3256 return FALSE;
3257 }
3258
3259 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3260 relocation + rel->r_addend))
3261 {
3262 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3263 with setlos #tlsmofflo(symbol+offset), grC.
3264 Preserve the packing bit. */
3265 insn &= (unsigned long)0xfe000000;
3266 insn |= (unsigned long)0x00fc0000;
3267 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3268
3269 r_type = R_FRV_TLSMOFFLO;
3270 howto = elf32_frv_howto_table + r_type;
3271 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3272 }
3273
3274 break;
3275
3276 case R_FRV_GOTTLSOFFHI:
3277 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3278
3279 /* Is this a sethi instruction? */
3280 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3281 {
3282 info->callbacks->einfo
3283 (_("%H: R_FRV_GOTTLSOFFHI"
3284 " not applied to a sethi instruction\n"),
3285 input_bfd, input_section, rel->r_offset);
3286 return FALSE;
3287 }
3288
3289 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3290 relocation + rel->r_addend)
3291 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3292 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3293 {
3294 /* Replace sethi with a nop. Preserve the packing bit. */
3295 insn &= (unsigned long)0x80000000;
3296 insn |= (unsigned long)0x00880000;
3297 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3298
3299 /* Nothing to relocate. */
3300 continue;
3301 }
3302
3303 break;
3304
3305 case R_FRV_GOTTLSOFFLO:
3306 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3307
3308 /* Is this a setlo or setlos instruction? */
3309 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3310 {
3311 info->callbacks->einfo
3312 (_("%H: R_FRV_GOTTLSOFFLO"
3313 " not applied to a setlo or setlos instruction\n"),
3314 input_bfd, input_section, rel->r_offset);
3315 return FALSE;
3316 }
3317
3318 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3319 relocation + rel->r_addend)
3320 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3321 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3322 {
3323 /* Replace setlo/setlos with a nop. Preserve the
3324 packing bit. */
3325 insn &= (unsigned long)0x80000000;
3326 insn |= (unsigned long)0x00880000;
3327 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3328
3329 /* Nothing to relocate. */
3330 continue;
3331 }
3332
3333 break;
3334
3335 case R_FRV_TLSOFF_RELAX:
3336 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3337
3338 /* Is this an ld instruction? */
3339 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3340 {
3341 info->callbacks->einfo
3342 (_("%H: R_FRV_TLSOFF_RELAX"
3343 " not applied to an ld instruction\n"),
3344 input_bfd, input_section, rel->r_offset);
3345 return FALSE;
3346 }
3347
3348 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3349 relocation + rel->r_addend))
3350 {
3351 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3352 with setlos #tlsmofflo(symbol+offset), grC.
3353 Preserve the packing bit. */
3354 insn &= (unsigned long)0xfe000000;
3355 insn |= (unsigned long)0x00fc0000;
3356 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3357
3358 r_type = R_FRV_TLSMOFFLO;
3359 howto = elf32_frv_howto_table + r_type;
3360 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3361 }
3362
3363 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3364 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3365 {
3366 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3367 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3368 Preserve the packing bit. */
3369 insn = (insn & (unsigned long)0xfe03f000)
3370 | (unsigned long)0x00c80000;
3371 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3372
3373 r_type = R_FRV_GOTTLSOFF12;
3374 howto = elf32_frv_howto_table + r_type;
3375 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3376 }
3377
3378 break;
3379
3380 case R_FRV_TLSMOFFHI:
3381 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3382
3383 /* Is this a sethi instruction? */
3384 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3385 {
3386 info->callbacks->einfo
3387 (_("%H: R_FRV_TLSMOFFHI"
3388 " not applied to a sethi instruction\n"),
3389 input_bfd, input_section, rel->r_offset);
3390 return FALSE;
3391 }
3392
3393 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3394 info))
3395 {
3396 /* Replace sethi with a nop. Preserve the packing bit. */
3397 insn &= (unsigned long)0x80000000;
3398 insn |= (unsigned long)0x00880000;
3399 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3400
3401 /* Nothing to relocate. */
3402 continue;
3403 }
3404
3405 break;
3406
3407 case R_FRV_TLSMOFFLO:
3408 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3409
3410 /* Is this a setlo or setlos instruction? */
3411 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3412 {
3413 info->callbacks->einfo
3414 (_("R_FRV_TLSMOFFLO"
3415 " not applied to a setlo or setlos instruction\n"),
3416 input_bfd, input_section, rel->r_offset);
3417 return FALSE;
3418 }
3419
3420 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3421 info))
3422 /* If the corresponding sethi (if it exists) decayed
3423 to a nop, make sure this becomes (or already is) a
3424 setlos, not setlo. */
3425 {
3426 insn |= (unsigned long)0x00080000;
3427 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3428 }
3429
3430 break;
3431
3432 /*
3433 There's nothing to relax in these:
3434 R_FRV_TLSDESC_VALUE
3435 R_FRV_TLSOFF
3436 R_FRV_TLSMOFF12
3437 R_FRV_TLSMOFFHI
3438 R_FRV_TLSMOFFLO
3439 R_FRV_TLSMOFF
3440 */
3441
3442 default:
3443 break;
3444 }
3445
3446 switch (r_type)
3447 {
3448 case R_FRV_LABEL24:
3449 check_segment[0] = isec_segment;
3450 if (! IS_FDPIC (output_bfd))
3451 check_segment[1] = isec_segment;
3452 else if (picrel->plt)
3453 {
3454 relocation = frvfdpic_plt_section (info)->output_section->vma
3455 + frvfdpic_plt_section (info)->output_offset
3456 + picrel->plt_entry;
3457 check_segment[1] = plt_segment;
3458 }
3459 /* We don't want to warn on calls to undefined weak symbols,
3460 as calls to them must be protected by non-NULL tests
3461 anyway, and unprotected calls would invoke undefined
3462 behavior. */
3463 else if (picrel->symndx == -1
3464 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3465 check_segment[1] = check_segment[0];
3466 else
3467 check_segment[1] = sec
3468 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3469 : (unsigned)-1;
3470 break;
3471
3472 case R_FRV_GOT12:
3473 case R_FRV_GOTHI:
3474 case R_FRV_GOTLO:
3475 relocation = picrel->got_entry;
3476 check_segment[0] = check_segment[1] = got_segment;
3477 break;
3478
3479 case R_FRV_FUNCDESC_GOT12:
3480 case R_FRV_FUNCDESC_GOTHI:
3481 case R_FRV_FUNCDESC_GOTLO:
3482 relocation = picrel->fdgot_entry;
3483 check_segment[0] = check_segment[1] = got_segment;
3484 break;
3485
3486 case R_FRV_GOTOFFHI:
3487 case R_FRV_GOTOFF12:
3488 case R_FRV_GOTOFFLO:
3489 relocation -= frvfdpic_got_section (info)->output_section->vma
3490 + frvfdpic_got_section (info)->output_offset
3491 + frvfdpic_got_initial_offset (info);
3492 check_segment[0] = got_segment;
3493 check_segment[1] = sec
3494 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3495 : (unsigned)-1;
3496 break;
3497
3498 case R_FRV_FUNCDESC_GOTOFF12:
3499 case R_FRV_FUNCDESC_GOTOFFHI:
3500 case R_FRV_FUNCDESC_GOTOFFLO:
3501 relocation = picrel->fd_entry;
3502 check_segment[0] = check_segment[1] = got_segment;
3503 break;
3504
3505 case R_FRV_FUNCDESC:
3506 {
3507 int dynindx;
3508 bfd_vma addend = rel->r_addend;
3509
3510 if (! (h && h->root.type == bfd_link_hash_undefweak
3511 && FRVFDPIC_SYM_LOCAL (info, h)))
3512 {
3513 /* If the symbol is dynamic and there may be dynamic
3514 symbol resolution because we are or are linked with a
3515 shared library, emit a FUNCDESC relocation such that
3516 the dynamic linker will allocate the function
3517 descriptor. If the symbol needs a non-local function
3518 descriptor but binds locally (e.g., its visibility is
3519 protected, emit a dynamic relocation decayed to
3520 section+offset. */
3521 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3522 && FRVFDPIC_SYM_LOCAL (info, h)
3523 && !(info->executable && !info->pie))
3524 {
3525 dynindx = elf_section_data (h->root.u.def.section
3526 ->output_section)->dynindx;
3527 addend += h->root.u.def.section->output_offset
3528 + h->root.u.def.value;
3529 }
3530 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3531 {
3532 if (addend)
3533 {
3534 info->callbacks->einfo
3535 (_("%H: R_FRV_FUNCDESC references dynamic symbol"
3536 " with nonzero addend\n"),
3537 input_bfd, input_section, rel->r_offset);
3538 return FALSE;
3539 }
3540 dynindx = h->dynindx;
3541 }
3542 else
3543 {
3544 /* Otherwise, we know we have a private function
3545 descriptor, so reference it directly. */
3546 BFD_ASSERT (picrel->privfd);
3547 r_type = R_FRV_32;
3548 dynindx = elf_section_data (frvfdpic_got_section (info)
3549 ->output_section)->dynindx;
3550 addend = frvfdpic_got_section (info)->output_offset
3551 + frvfdpic_got_initial_offset (info)
3552 + picrel->fd_entry;
3553 }
3554
3555 /* If there is room for dynamic symbol resolution, emit
3556 the dynamic relocation. However, if we're linking an
3557 executable at a fixed location, we won't have emitted a
3558 dynamic symbol entry for the got section, so idx will
3559 be zero, which means we can and should compute the
3560 address of the private descriptor ourselves. */
3561 if (info->executable && !info->pie
3562 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3563 {
3564 addend += frvfdpic_got_section (info)->output_section->vma;
3565 if ((bfd_get_section_flags (output_bfd,
3566 input_section->output_section)
3567 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3568 {
3569 bfd_vma offset;
3570
3571 if (_frvfdpic_osec_readonly_p (output_bfd,
3572 input_section
3573 ->output_section))
3574 {
3575 info->callbacks->einfo
3576 (_("%H: cannot emit fixups"
3577 " in read-only section\n"),
3578 input_bfd, input_section, rel->r_offset);
3579 return FALSE;
3580 }
3581
3582 offset = _bfd_elf_section_offset
3583 (output_bfd, info,
3584 input_section, rel->r_offset);
3585
3586 if (offset != (bfd_vma)-1)
3587 _frvfdpic_add_rofixup (output_bfd,
3588 frvfdpic_gotfixup_section
3589 (info),
3590 offset + input_section
3591 ->output_section->vma
3592 + input_section->output_offset,
3593 picrel);
3594 }
3595 }
3596 else if ((bfd_get_section_flags (output_bfd,
3597 input_section->output_section)
3598 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3599 {
3600 bfd_vma offset;
3601
3602 if (_frvfdpic_osec_readonly_p (output_bfd,
3603 input_section
3604 ->output_section))
3605 {
3606 info->callbacks->einfo
3607 (_("%H: cannot emit dynamic relocations"
3608 " in read-only section\n"),
3609 input_bfd, input_section, rel->r_offset);
3610 return FALSE;
3611 }
3612
3613 offset = _bfd_elf_section_offset
3614 (output_bfd, info,
3615 input_section, rel->r_offset);
3616
3617 if (offset != (bfd_vma)-1)
3618 _frvfdpic_add_dyn_reloc (output_bfd,
3619 frvfdpic_gotrel_section (info),
3620 offset + input_section
3621 ->output_section->vma
3622 + input_section->output_offset,
3623 r_type, dynindx, addend, picrel);
3624 }
3625 else
3626 addend += frvfdpic_got_section (info)->output_section->vma;
3627 }
3628
3629 /* We want the addend in-place because dynamic
3630 relocations are REL. Setting relocation to it should
3631 arrange for it to be installed. */
3632 relocation = addend - rel->r_addend;
3633 }
3634 check_segment[0] = check_segment[1] = got_segment;
3635 break;
3636
3637 case R_FRV_32:
3638 if (! IS_FDPIC (output_bfd))
3639 {
3640 check_segment[0] = check_segment[1] = -1;
3641 break;
3642 }
3643 /* Fall through. */
3644 case R_FRV_FUNCDESC_VALUE:
3645 {
3646 int dynindx;
3647 bfd_vma addend = rel->r_addend;
3648
3649 /* If the symbol is dynamic but binds locally, use
3650 section+offset. */
3651 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3652 {
3653 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3654 {
3655 info->callbacks->einfo
3656 (_("%H: R_FRV_FUNCDESC_VALUE"
3657 " references dynamic symbol with nonzero addend\n"),
3658 input_bfd, input_section, rel->r_offset);
3659 return FALSE;
3660 }
3661 dynindx = h->dynindx;
3662 }
3663 else
3664 {
3665 if (h)
3666 addend += h->root.u.def.value;
3667 else
3668 addend += sym->st_value;
3669 if (osec)
3670 addend += osec->output_offset;
3671 if (osec && osec->output_section
3672 && ! bfd_is_abs_section (osec->output_section)
3673 && ! bfd_is_und_section (osec->output_section))
3674 dynindx = elf_section_data (osec->output_section)->dynindx;
3675 else
3676 dynindx = 0;
3677 }
3678
3679 /* If we're linking an executable at a fixed address, we
3680 can omit the dynamic relocation as long as the symbol
3681 is defined in the current link unit (which is implied
3682 by its output section not being NULL). */
3683 if (info->executable && !info->pie
3684 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3685 {
3686 if (osec)
3687 addend += osec->output_section->vma;
3688 if (IS_FDPIC (input_bfd)
3689 && (bfd_get_section_flags (output_bfd,
3690 input_section->output_section)
3691 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3692 {
3693 if (_frvfdpic_osec_readonly_p (output_bfd,
3694 input_section
3695 ->output_section))
3696 {
3697 info->callbacks->einfo
3698 (_("%H: cannot emit fixups in read-only section\n"),
3699 input_bfd, input_section, rel->r_offset);
3700 return FALSE;
3701 }
3702 if (!h || h->root.type != bfd_link_hash_undefweak)
3703 {
3704 bfd_vma offset = _bfd_elf_section_offset
3705 (output_bfd, info,
3706 input_section, rel->r_offset);
3707
3708 if (offset != (bfd_vma)-1)
3709 {
3710 _frvfdpic_add_rofixup (output_bfd,
3711 frvfdpic_gotfixup_section
3712 (info),
3713 offset + input_section
3714 ->output_section->vma
3715 + input_section->output_offset,
3716 picrel);
3717 if (r_type == R_FRV_FUNCDESC_VALUE)
3718 _frvfdpic_add_rofixup
3719 (output_bfd,
3720 frvfdpic_gotfixup_section (info),
3721 offset
3722 + input_section->output_section->vma
3723 + input_section->output_offset + 4, picrel);
3724 }
3725 }
3726 }
3727 }
3728 else
3729 {
3730 if ((bfd_get_section_flags (output_bfd,
3731 input_section->output_section)
3732 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3733 {
3734 bfd_vma offset;
3735
3736 if (_frvfdpic_osec_readonly_p (output_bfd,
3737 input_section
3738 ->output_section))
3739 {
3740 info->callbacks->einfo
3741 (_("%H: cannot emit dynamic relocations"
3742 " in read-only section\n"),
3743 input_bfd, input_section, rel->r_offset);
3744 return FALSE;
3745 }
3746
3747 offset = _bfd_elf_section_offset
3748 (output_bfd, info,
3749 input_section, rel->r_offset);
3750
3751 if (offset != (bfd_vma)-1)
3752 _frvfdpic_add_dyn_reloc (output_bfd,
3753 frvfdpic_gotrel_section (info),
3754 offset + input_section
3755 ->output_section->vma
3756 + input_section->output_offset,
3757 r_type, dynindx, addend, picrel);
3758 }
3759 else if (osec)
3760 addend += osec->output_section->vma;
3761 /* We want the addend in-place because dynamic
3762 relocations are REL. Setting relocation to it
3763 should arrange for it to be installed. */
3764 relocation = addend - rel->r_addend;
3765 }
3766
3767 if (r_type == R_FRV_FUNCDESC_VALUE)
3768 {
3769 /* If we've omitted the dynamic relocation, just emit
3770 the fixed addresses of the symbol and of the local
3771 GOT base offset. */
3772 if (info->executable && !info->pie
3773 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3774 bfd_put_32 (output_bfd,
3775 frvfdpic_got_section (info)->output_section->vma
3776 + frvfdpic_got_section (info)->output_offset
3777 + frvfdpic_got_initial_offset (info),
3778 contents + rel->r_offset + 4);
3779 else
3780 /* A function descriptor used for lazy or local
3781 resolving is initialized such that its high word
3782 contains the output section index in which the
3783 PLT entries are located, and the low word
3784 contains the offset of the lazy PLT entry entry
3785 point into that section. */
3786 bfd_put_32 (output_bfd,
3787 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3788 ? 0
3789 : _frvfdpic_osec_to_segment (output_bfd,
3790 sec
3791 ->output_section),
3792 contents + rel->r_offset + 4);
3793 }
3794 }
3795 check_segment[0] = check_segment[1] = got_segment;
3796 break;
3797
3798 case R_FRV_GPREL12:
3799 case R_FRV_GPRELU12:
3800 case R_FRV_GPREL32:
3801 case R_FRV_GPRELHI:
3802 case R_FRV_GPRELLO:
3803 check_segment[0] = gprel_segment;
3804 check_segment[1] = sec
3805 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3806 : (unsigned)-1;
3807 break;
3808
3809 case R_FRV_GETTLSOFF:
3810 relocation = frvfdpic_plt_section (info)->output_section->vma
3811 + frvfdpic_plt_section (info)->output_offset
3812 + picrel->tlsplt_entry;
3813 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3814 && picrel->tlsdesc_entry);
3815 check_segment[0] = isec_segment;
3816 check_segment[1] = plt_segment;
3817 break;
3818
3819 case R_FRV_GOTTLSDESC12:
3820 case R_FRV_GOTTLSDESCHI:
3821 case R_FRV_GOTTLSDESCLO:
3822 BFD_ASSERT (picrel->tlsdesc_entry);
3823 relocation = picrel->tlsdesc_entry;
3824 check_segment[0] = tls_segment;
3825 check_segment[1] = sec
3826 && ! bfd_is_abs_section (sec)
3827 && ! bfd_is_und_section (sec)
3828 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3829 : tls_segment;
3830 break;
3831
3832 case R_FRV_TLSMOFF12:
3833 case R_FRV_TLSMOFFHI:
3834 case R_FRV_TLSMOFFLO:
3835 case R_FRV_TLSMOFF:
3836 check_segment[0] = tls_segment;
3837 if (! sec)
3838 check_segment[1] = -1;
3839 else if (bfd_is_abs_section (sec)
3840 || bfd_is_und_section (sec))
3841 {
3842 relocation = 0;
3843 check_segment[1] = tls_segment;
3844 }
3845 else if (sec->output_section)
3846 {
3847 relocation -= tls_biased_base (info);
3848 check_segment[1] =
3849 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3850 }
3851 else
3852 check_segment[1] = -1;
3853 break;
3854
3855 case R_FRV_GOTTLSOFF12:
3856 case R_FRV_GOTTLSOFFHI:
3857 case R_FRV_GOTTLSOFFLO:
3858 BFD_ASSERT (picrel->tlsoff_entry);
3859 relocation = picrel->tlsoff_entry;
3860 check_segment[0] = tls_segment;
3861 check_segment[1] = sec
3862 && ! bfd_is_abs_section (sec)
3863 && ! bfd_is_und_section (sec)
3864 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3865 : tls_segment;
3866 break;
3867
3868 case R_FRV_TLSDESC_VALUE:
3869 case R_FRV_TLSOFF:
3870 /* These shouldn't be present in input object files. */
3871 check_segment[0] = check_segment[1] = isec_segment;
3872 break;
3873
3874 case R_FRV_TLSDESC_RELAX:
3875 case R_FRV_GETTLSOFF_RELAX:
3876 case R_FRV_TLSOFF_RELAX:
3877 /* These are just annotations for relaxation, nothing to do
3878 here. */
3879 continue;
3880
3881 default:
3882 check_segment[0] = isec_segment;
3883 check_segment[1] = sec
3884 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3885 : (unsigned)-1;
3886 break;
3887 }
3888
3889 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3890 {
3891 /* If you take this out, remove the #error from fdpic-static-6.d
3892 in the ld testsuite. */
3893 /* This helps catch problems in GCC while we can't do more
3894 than static linking. The idea is to test whether the
3895 input file basename is crt0.o only once. */
3896 if (silence_segment_error == 1)
3897 silence_segment_error =
3898 (strlen (input_bfd->filename) == 6
3899 && filename_cmp (input_bfd->filename, "crt0.o") == 0)
3900 || (strlen (input_bfd->filename) > 6
3901 && filename_cmp (input_bfd->filename
3902 + strlen (input_bfd->filename) - 7,
3903 "/crt0.o") == 0)
3904 ? -1 : 0;
3905 if (!silence_segment_error
3906 /* We don't want duplicate errors for undefined
3907 symbols. */
3908 && !(picrel && picrel->symndx == -1
3909 && picrel->d.h->root.type == bfd_link_hash_undefined))
3910 {
3911 info->callbacks->einfo
3912 (_("%H: reloc against `%s' references a different segment\n"),
3913 input_bfd, input_section, rel->r_offset, name);
3914 }
3915 if (!silence_segment_error && (info->shared || info->pie))
3916 return FALSE;
3917 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3918 }
3919
3920 switch (r_type)
3921 {
3922 case R_FRV_GOTOFFHI:
3923 case R_FRV_TLSMOFFHI:
3924 /* We need the addend to be applied before we shift the
3925 value right. */
3926 relocation += rel->r_addend;
3927 /* Fall through. */
3928 case R_FRV_GOTHI:
3929 case R_FRV_FUNCDESC_GOTHI:
3930 case R_FRV_FUNCDESC_GOTOFFHI:
3931 case R_FRV_GOTTLSOFFHI:
3932 case R_FRV_GOTTLSDESCHI:
3933 relocation >>= 16;
3934 /* Fall through. */
3935
3936 case R_FRV_GOTLO:
3937 case R_FRV_FUNCDESC_GOTLO:
3938 case R_FRV_GOTOFFLO:
3939 case R_FRV_FUNCDESC_GOTOFFLO:
3940 case R_FRV_GOTTLSOFFLO:
3941 case R_FRV_GOTTLSDESCLO:
3942 case R_FRV_TLSMOFFLO:
3943 relocation &= 0xffff;
3944 break;
3945
3946 default:
3947 break;
3948 }
3949
3950 switch (r_type)
3951 {
3952 case R_FRV_LABEL24:
3953 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3954 break;
3955 /* Fall through. */
3956
3957 /* When referencing a GOT entry, a function descriptor or a
3958 PLT, we don't want the addend to apply to the reference,
3959 but rather to the referenced symbol. The actual entry
3960 will have already been created taking the addend into
3961 account, so cancel it out here. */
3962 case R_FRV_GOT12:
3963 case R_FRV_GOTHI:
3964 case R_FRV_GOTLO:
3965 case R_FRV_FUNCDESC_GOT12:
3966 case R_FRV_FUNCDESC_GOTHI:
3967 case R_FRV_FUNCDESC_GOTLO:
3968 case R_FRV_FUNCDESC_GOTOFF12:
3969 case R_FRV_FUNCDESC_GOTOFFHI:
3970 case R_FRV_FUNCDESC_GOTOFFLO:
3971 case R_FRV_GETTLSOFF:
3972 case R_FRV_GOTTLSDESC12:
3973 case R_FRV_GOTTLSDESCHI:
3974 case R_FRV_GOTTLSDESCLO:
3975 case R_FRV_GOTTLSOFF12:
3976 case R_FRV_GOTTLSOFFHI:
3977 case R_FRV_GOTTLSOFFLO:
3978 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
3979 here, since we do want to apply the addend to the others.
3980 Note that we've applied the addend to GOTOFFHI before we
3981 shifted it right. */
3982 case R_FRV_GOTOFFHI:
3983 case R_FRV_TLSMOFFHI:
3984 relocation -= rel->r_addend;
3985 break;
3986
3987 default:
3988 break;
3989 }
3990
3991 if (r_type == R_FRV_HI16)
3992 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
3993
3994 else if (r_type == R_FRV_LO16)
3995 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
3996
3997 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
3998 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
3999 contents, relocation);
4000
4001 else if (r_type == R_FRV_GPREL12)
4002 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4003 contents, relocation);
4004
4005 else if (r_type == R_FRV_GPRELU12)
4006 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4007 contents, relocation);
4008
4009 else if (r_type == R_FRV_GPRELLO)
4010 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4011 contents, relocation);
4012
4013 else if (r_type == R_FRV_GPRELHI)
4014 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4015 contents, relocation);
4016
4017 else if (r_type == R_FRV_TLSOFF
4018 || r_type == R_FRV_TLSDESC_VALUE)
4019 r = bfd_reloc_notsupported;
4020
4021 else
4022 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4023 rel, relocation);
4024
4025 if (r != bfd_reloc_ok)
4026 {
4027 const char * msg = (const char *) NULL;
4028
4029 switch (r)
4030 {
4031 case bfd_reloc_overflow:
4032 r = info->callbacks->reloc_overflow
4033 (info, (h ? &h->root : NULL), name, howto->name,
4034 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4035 break;
4036
4037 case bfd_reloc_undefined:
4038 r = info->callbacks->undefined_symbol
4039 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4040 break;
4041
4042 case bfd_reloc_outofrange:
4043 msg = _("internal error: out of range error");
4044 break;
4045
4046 case bfd_reloc_notsupported:
4047 msg = _("internal error: unsupported relocation error");
4048 break;
4049
4050 case bfd_reloc_dangerous:
4051 msg = _("internal error: dangerous relocation");
4052 break;
4053
4054 default:
4055 msg = _("internal error: unknown error");
4056 break;
4057 }
4058
4059 if (msg)
4060 {
4061 info->callbacks->einfo
4062 (_("%H: reloc against `%s': %s\n"),
4063 input_bfd, input_section, rel->r_offset, name, msg);
4064 return FALSE;
4065 }
4066
4067 if (! r)
4068 return FALSE;
4069 }
4070 }
4071
4072 return TRUE;
4073 }
4074 \f
4075 /* Return the section that should be marked against GC for a given
4076 relocation. */
4077
4078 static asection *
4079 elf32_frv_gc_mark_hook (asection *sec,
4080 struct bfd_link_info *info,
4081 Elf_Internal_Rela *rel,
4082 struct elf_link_hash_entry *h,
4083 Elf_Internal_Sym *sym)
4084 {
4085 if (h != NULL)
4086 switch (ELF32_R_TYPE (rel->r_info))
4087 {
4088 case R_FRV_GNU_VTINHERIT:
4089 case R_FRV_GNU_VTENTRY:
4090 return NULL;
4091 }
4092
4093 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4094 }
4095 \f
4096 /* Hook called by the linker routine which adds symbols from an object
4097 file. We use it to put .comm items in .scomm, and not .comm. */
4098
4099 static bfd_boolean
4100 elf32_frv_add_symbol_hook (bfd *abfd,
4101 struct bfd_link_info *info,
4102 Elf_Internal_Sym *sym,
4103 const char **namep ATTRIBUTE_UNUSED,
4104 flagword *flagsp ATTRIBUTE_UNUSED,
4105 asection **secp,
4106 bfd_vma *valp)
4107 {
4108 if (sym->st_shndx == SHN_COMMON
4109 && !info->relocatable
4110 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4111 {
4112 /* Common symbols less than or equal to -G nn bytes are
4113 automatically put into .sbss. */
4114
4115 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4116
4117 if (scomm == NULL)
4118 {
4119 scomm = bfd_make_section_with_flags (abfd, ".scommon",
4120 (SEC_ALLOC
4121 | SEC_IS_COMMON
4122 | SEC_LINKER_CREATED));
4123 if (scomm == NULL)
4124 return FALSE;
4125 }
4126
4127 *secp = scomm;
4128 *valp = sym->st_size;
4129 }
4130
4131 return TRUE;
4132 }
4133
4134 /* We need dynamic symbols for every section, since segments can
4135 relocate independently. */
4136 static bfd_boolean
4137 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4138 struct bfd_link_info *info
4139 ATTRIBUTE_UNUSED,
4140 asection *p ATTRIBUTE_UNUSED)
4141 {
4142 switch (elf_section_data (p)->this_hdr.sh_type)
4143 {
4144 case SHT_PROGBITS:
4145 case SHT_NOBITS:
4146 /* If sh_type is yet undecided, assume it could be
4147 SHT_PROGBITS/SHT_NOBITS. */
4148 case SHT_NULL:
4149 return FALSE;
4150
4151 /* There shouldn't be section relative relocations
4152 against any other section. */
4153 default:
4154 return TRUE;
4155 }
4156 }
4157
4158 /* Create a .got section, as well as its additional info field. This
4159 is almost entirely copied from
4160 elflink.c:_bfd_elf_create_got_section(). */
4161
4162 static bfd_boolean
4163 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4164 {
4165 flagword flags, pltflags;
4166 asection *s;
4167 struct elf_link_hash_entry *h;
4168 struct bfd_link_hash_entry *bh;
4169 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4170 int ptralign;
4171 int offset;
4172
4173 /* This function may be called more than once. */
4174 s = bfd_get_linker_section (abfd, ".got");
4175 if (s != NULL)
4176 return TRUE;
4177
4178 /* Machine specific: although pointers are 32-bits wide, we want the
4179 GOT to be aligned to a 64-bit boundary, such that function
4180 descriptors in it can be accessed with 64-bit loads and
4181 stores. */
4182 ptralign = 3;
4183
4184 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4185 | SEC_LINKER_CREATED);
4186 pltflags = flags;
4187
4188 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
4189 if (s == NULL
4190 || !bfd_set_section_alignment (abfd, s, ptralign))
4191 return FALSE;
4192
4193 if (bed->want_got_plt)
4194 {
4195 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
4196 if (s == NULL
4197 || !bfd_set_section_alignment (abfd, s, ptralign))
4198 return FALSE;
4199 }
4200
4201 if (bed->want_got_sym)
4202 {
4203 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4204 (or .got.plt) section. We don't do this in the linker script
4205 because we don't want to define the symbol if we are not creating
4206 a global offset table. */
4207 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4208 elf_hash_table (info)->hgot = h;
4209 if (h == NULL)
4210 return FALSE;
4211
4212 /* Machine-specific: we want the symbol for executables as
4213 well. */
4214 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4215 return FALSE;
4216 }
4217
4218 /* The first bit of the global offset table is the header. */
4219 s->size += bed->got_header_size;
4220
4221 /* This is the machine-specific part. Create and initialize section
4222 data for the got. */
4223 if (IS_FDPIC (abfd))
4224 {
4225 frvfdpic_got_section (info) = s;
4226 frvfdpic_relocs_info (info) = htab_try_create (1,
4227 frvfdpic_relocs_info_hash,
4228 frvfdpic_relocs_info_eq,
4229 (htab_del) NULL);
4230 if (! frvfdpic_relocs_info (info))
4231 return FALSE;
4232
4233 s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
4234 (flags | SEC_READONLY));
4235 if (s == NULL
4236 || ! bfd_set_section_alignment (abfd, s, 2))
4237 return FALSE;
4238
4239 frvfdpic_gotrel_section (info) = s;
4240
4241 /* Machine-specific. */
4242 s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
4243 (flags | SEC_READONLY));
4244 if (s == NULL
4245 || ! bfd_set_section_alignment (abfd, s, 2))
4246 return FALSE;
4247
4248 frvfdpic_gotfixup_section (info) = s;
4249 offset = -2048;
4250 flags = BSF_GLOBAL;
4251 }
4252 else
4253 {
4254 offset = 2048;
4255 flags = BSF_GLOBAL | BSF_WEAK;
4256 }
4257
4258 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4259 turns out that we're linking with a different linker script, the
4260 linker script will override it. */
4261 bh = NULL;
4262 if (!(_bfd_generic_link_add_one_symbol
4263 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4264 bed->collect, &bh)))
4265 return FALSE;
4266 h = (struct elf_link_hash_entry *) bh;
4267 h->def_regular = 1;
4268 h->type = STT_OBJECT;
4269 /* h->other = STV_HIDDEN; */ /* Should we? */
4270
4271 /* Machine-specific: we want the symbol for executables as well. */
4272 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4273 return FALSE;
4274
4275 if (!IS_FDPIC (abfd))
4276 return TRUE;
4277
4278 /* FDPIC supports Thread Local Storage, and this may require a
4279 procedure linkage table for TLS PLT entries. */
4280
4281 /* This is mostly copied from
4282 elflink.c:_bfd_elf_create_dynamic_sections(). */
4283
4284 flags = pltflags;
4285 pltflags |= SEC_CODE;
4286 if (bed->plt_not_loaded)
4287 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4288 if (bed->plt_readonly)
4289 pltflags |= SEC_READONLY;
4290
4291 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
4292 if (s == NULL
4293 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4294 return FALSE;
4295 /* FRV-specific: remember it. */
4296 frvfdpic_plt_section (info) = s;
4297
4298 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4299 .plt section. */
4300 if (bed->want_plt_sym)
4301 {
4302 h = _bfd_elf_define_linkage_sym (abfd, info, s,
4303 "_PROCEDURE_LINKAGE_TABLE_");
4304 elf_hash_table (info)->hplt = h;
4305 if (h == NULL)
4306 return FALSE;
4307 }
4308
4309 /* FRV-specific: we want rel relocations for the plt. */
4310 s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
4311 flags | SEC_READONLY);
4312 if (s == NULL
4313 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4314 return FALSE;
4315 /* FRV-specific: remember it. */
4316 frvfdpic_pltrel_section (info) = s;
4317
4318 return TRUE;
4319 }
4320
4321 /* Make sure the got and plt sections exist, and that our pointers in
4322 the link hash table point to them. */
4323
4324 static bfd_boolean
4325 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4326 {
4327 /* This is mostly copied from
4328 elflink.c:_bfd_elf_create_dynamic_sections(). */
4329 flagword flags;
4330 asection *s;
4331 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4332
4333 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4334 | SEC_LINKER_CREATED);
4335
4336 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4337 .rel[a].bss sections. */
4338
4339 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4340 way. */
4341 if (! _frv_create_got_section (abfd, info))
4342 return FALSE;
4343
4344 /* FRV-specific: make sure we created everything we wanted. */
4345 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4346 && frvfdpic_gotfixup_section (info)
4347 && frvfdpic_plt_section (info)
4348 && frvfdpic_pltrel_section (info));
4349
4350 if (bed->want_dynbss)
4351 {
4352 /* The .dynbss section is a place to put symbols which are defined
4353 by dynamic objects, are referenced by regular objects, and are
4354 not functions. We must allocate space for them in the process
4355 image and use a R_*_COPY reloc to tell the dynamic linker to
4356 initialize them at run time. The linker script puts the .dynbss
4357 section into the .bss section of the final image. */
4358 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
4359 SEC_ALLOC | SEC_LINKER_CREATED);
4360 if (s == NULL)
4361 return FALSE;
4362
4363 /* The .rel[a].bss section holds copy relocs. This section is not
4364 normally needed. We need to create it here, though, so that the
4365 linker will map it to an output section. We can't just create it
4366 only if we need it, because we will not know whether we need it
4367 until we have seen all the input files, and the first time the
4368 main linker code calls BFD after examining all the input files
4369 (size_dynamic_sections) the input sections have already been
4370 mapped to the output sections. If the section turns out not to
4371 be needed, we can discard it later. We will never need this
4372 section when generating a shared object, since they do not use
4373 copy relocs. */
4374 if (! info->shared)
4375 {
4376 s = bfd_make_section_anyway_with_flags (abfd,
4377 (bed->default_use_rela_p
4378 ? ".rela.bss" : ".rel.bss"),
4379 flags | SEC_READONLY);
4380 if (s == NULL
4381 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4382 return FALSE;
4383 }
4384 }
4385
4386 return TRUE;
4387 }
4388
4389 /* Compute the total GOT and PLT size required by each symbol in each
4390 range. Symbols may require up to 4 words in the GOT: an entry
4391 pointing to the symbol, an entry pointing to its function
4392 descriptor, and a private function descriptors taking two
4393 words. */
4394
4395 static void
4396 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4397 struct _frvfdpic_dynamic_got_info *dinfo)
4398 {
4399 /* Allocate space for a GOT entry pointing to the symbol. */
4400 if (entry->got12)
4401 dinfo->got12 += 4;
4402 else if (entry->gotlos)
4403 dinfo->gotlos += 4;
4404 else if (entry->gothilo)
4405 dinfo->gothilo += 4;
4406 else
4407 entry->relocs32--;
4408 entry->relocs32++;
4409
4410 /* Allocate space for a GOT entry pointing to the function
4411 descriptor. */
4412 if (entry->fdgot12)
4413 dinfo->got12 += 4;
4414 else if (entry->fdgotlos)
4415 dinfo->gotlos += 4;
4416 else if (entry->fdgothilo)
4417 dinfo->gothilo += 4;
4418 else
4419 entry->relocsfd--;
4420 entry->relocsfd++;
4421
4422 /* Decide whether we need a PLT entry, a function descriptor in the
4423 GOT, and a lazy PLT entry for this symbol. */
4424 entry->plt = entry->call
4425 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4426 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4427 entry->privfd = entry->plt
4428 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4429 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4430 && (entry->symndx != -1
4431 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4432 entry->lazyplt = entry->privfd
4433 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4434 && ! (dinfo->info->flags & DF_BIND_NOW)
4435 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4436
4437 /* Allocate space for a function descriptor. */
4438 if (entry->fdgoff12)
4439 dinfo->fd12 += 8;
4440 else if (entry->fdgofflos)
4441 dinfo->fdlos += 8;
4442 else if (entry->privfd && entry->plt)
4443 dinfo->fdplt += 8;
4444 else if (entry->privfd)
4445 dinfo->fdhilo += 8;
4446 else
4447 entry->relocsfdv--;
4448 entry->relocsfdv++;
4449
4450 if (entry->lazyplt)
4451 dinfo->lzplt += 8;
4452 }
4453
4454 /* Compute the total GOT size required by each TLS symbol in each
4455 range. Symbols may require up to 5 words in the GOT: an entry
4456 holding the TLS offset for the symbol, and an entry with a full TLS
4457 descriptor taking 4 words. */
4458
4459 static void
4460 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4461 struct _frvfdpic_dynamic_got_info *dinfo,
4462 bfd_boolean subtract)
4463 {
4464 const int l = subtract ? -1 : 1;
4465
4466 /* Allocate space for a GOT entry with the TLS offset of the
4467 symbol. */
4468 if (entry->tlsoff12)
4469 dinfo->got12 += 4 * l;
4470 else if (entry->tlsofflos)
4471 dinfo->gotlos += 4 * l;
4472 else if (entry->tlsoffhilo)
4473 dinfo->gothilo += 4 * l;
4474 else
4475 entry->relocstlsoff -= l;
4476 entry->relocstlsoff += l;
4477
4478 /* If there's any TLSOFF relocation, mark the output file as not
4479 suitable for dlopening. This mark will remain even if we relax
4480 all such relocations, but this is not a problem, since we'll only
4481 do so for executables, and we definitely don't want anyone
4482 dlopening executables. */
4483 if (entry->relocstlsoff)
4484 dinfo->info->flags |= DF_STATIC_TLS;
4485
4486 /* Allocate space for a TLS descriptor. */
4487 if (entry->tlsdesc12)
4488 dinfo->tlsd12 += 8 * l;
4489 else if (entry->tlsdesclos)
4490 dinfo->tlsdlos += 8 * l;
4491 else if (entry->tlsplt)
4492 dinfo->tlsdplt += 8 * l;
4493 else if (entry->tlsdeschilo)
4494 dinfo->tlsdhilo += 8 * l;
4495 else
4496 entry->relocstlsd -= l;
4497 entry->relocstlsd += l;
4498 }
4499
4500 /* Compute the number of dynamic relocations and fixups that a symbol
4501 requires, and add (or subtract) from the grand and per-symbol
4502 totals. */
4503
4504 static void
4505 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4506 struct _frvfdpic_dynamic_got_info *dinfo,
4507 bfd_boolean subtract)
4508 {
4509 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4510
4511 if (!dinfo->info->executable || dinfo->info->pie)
4512 {
4513 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4514 + entry->relocstlsd;
4515
4516 /* In the executable, TLS relocations to symbols that bind
4517 locally (including those that resolve to global TLS offsets)
4518 are resolved immediately, without any need for fixups or
4519 dynamic relocations. In shared libraries, however, we must
4520 emit dynamic relocations even for local symbols, because we
4521 don't know the module id the library is going to get at
4522 run-time, nor its TLS base offset. */
4523 if (!dinfo->info->executable
4524 || (entry->symndx == -1
4525 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4526 relocs += entry->relocstlsoff;
4527 }
4528 else
4529 {
4530 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4531 {
4532 if (entry->symndx != -1
4533 || entry->d.h->root.type != bfd_link_hash_undefweak)
4534 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4535 fixups += entry->relocstlsd;
4536 tlsrets += entry->relocstlsd;
4537 }
4538 else
4539 {
4540 relocs += entry->relocs32 + entry->relocsfdv
4541 + entry->relocstlsoff + entry->relocstlsd;
4542 }
4543
4544 if (entry->symndx != -1
4545 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4546 {
4547 if (entry->symndx != -1
4548 || entry->d.h->root.type != bfd_link_hash_undefweak)
4549 fixups += entry->relocsfd;
4550 }
4551 else
4552 relocs += entry->relocsfd;
4553 }
4554
4555 if (subtract)
4556 {
4557 relocs = - relocs;
4558 fixups = - fixups;
4559 tlsrets = - tlsrets;
4560 }
4561
4562 entry->dynrelocs += relocs;
4563 entry->fixups += fixups;
4564 dinfo->relocs += relocs;
4565 dinfo->fixups += fixups;
4566 dinfo->tls_ret_refs += tlsrets;
4567 }
4568
4569 /* Look for opportunities to relax TLS relocations. We can assume
4570 we're linking the main executable or a static-tls library, since
4571 otherwise we wouldn't have got here. When relaxing, we have to
4572 first undo any previous accounting of TLS uses of fixups, dynamic
4573 relocations, GOT and PLT entries. */
4574
4575 static void
4576 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4577 struct _frvfdpic_dynamic_got_info *dinfo,
4578 bfd_boolean relaxing)
4579 {
4580 bfd_boolean changed = ! relaxing;
4581
4582 BFD_ASSERT (dinfo->info->executable
4583 || (dinfo->info->flags & DF_STATIC_TLS));
4584
4585 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4586 {
4587 if (! changed)
4588 {
4589 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4590 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4591 changed = TRUE;
4592 }
4593
4594 /* When linking an executable, we can always decay GOTTLSDESC to
4595 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4596 When linking a static-tls shared library, using TLSMOFF is
4597 not an option, but we can still use GOTTLSOFF. When decaying
4598 to GOTTLSOFF, we must keep the GOT entry in range. We know
4599 it has to fit because we'll be trading the 4 words of hte TLS
4600 descriptor for a single word in the same range. */
4601 if (! dinfo->info->executable
4602 || (entry->symndx == -1
4603 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4604 {
4605 entry->tlsoff12 |= entry->tlsdesc12;
4606 entry->tlsofflos |= entry->tlsdesclos;
4607 entry->tlsoffhilo |= entry->tlsdeschilo;
4608 }
4609
4610 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4611 }
4612
4613 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4614 main executable. We have to check whether the symbol's TLSOFF is
4615 in range for a setlos. For symbols with a hash entry, we can
4616 determine exactly what to do; for others locals, we don't have
4617 addresses handy, so we use the size of the TLS section as an
4618 approximation. If we get it wrong, we'll retain a GOT entry
4619 holding the TLS offset (without dynamic relocations or fixups),
4620 but we'll still optimize away the loads from it. Since TLS sizes
4621 are generally very small, it's probably not worth attempting to
4622 do better than this. */
4623 if ((entry->tlsplt
4624 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4625 && dinfo->info->executable && relaxing
4626 && ((entry->symndx == -1
4627 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4628 /* The above may hold for an undefweak TLS symbol, so make
4629 sure we don't have this case before accessing def.value
4630 and def.section. */
4631 && (entry->d.h->root.type == bfd_link_hash_undefweak
4632 || (bfd_vma)(entry->d.h->root.u.def.value
4633 + (entry->d.h->root.u.def.section
4634 ->output_section->vma)
4635 + entry->d.h->root.u.def.section->output_offset
4636 + entry->addend
4637 - tls_biased_base (dinfo->info)
4638 + 32768) < (bfd_vma)65536))
4639 || (entry->symndx != -1
4640 && (elf_hash_table (dinfo->info)->tls_sec->size
4641 + abs (entry->addend) < 32768 + FRVFDPIC_TLS_BIAS))))
4642 {
4643 if (! changed)
4644 {
4645 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4646 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4647 changed = TRUE;
4648 }
4649
4650 entry->tlsplt =
4651 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4652 }
4653
4654 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4655 have a #gottlsoff12 relocation for this entry, or if we can fit
4656 one more in the 12-bit (and 16-bit) ranges. */
4657 if (entry->tlsplt
4658 && (entry->tlsoff12
4659 || (relaxing
4660 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4661 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4662 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4663 <= 65536 - 12 - 4))))
4664 {
4665 if (! changed)
4666 {
4667 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4668 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4669 changed = TRUE;
4670 }
4671
4672 entry->tlsoff12 = 1;
4673 entry->tlsplt = 0;
4674 }
4675
4676 if (changed)
4677 {
4678 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4679 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4680 }
4681
4682 return;
4683 }
4684
4685 /* Compute the total GOT and PLT size required by each symbol in each range. *
4686 Symbols may require up to 4 words in the GOT: an entry pointing to
4687 the symbol, an entry pointing to its function descriptor, and a
4688 private function descriptors taking two words. */
4689
4690 static int
4691 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4692 {
4693 struct frvfdpic_relocs_info *entry = *entryp;
4694 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4695
4696 _frvfdpic_count_nontls_entries (entry, dinfo);
4697
4698 if (dinfo->info->executable || (dinfo->info->flags & DF_STATIC_TLS))
4699 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4700 else
4701 {
4702 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4703 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4704 }
4705
4706 return 1;
4707 }
4708
4709 /* Determine the positive and negative ranges to be used by each
4710 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4711 double-word boundary, are the minimum (negative) and maximum
4712 (positive) GOT offsets already used by previous ranges, except for
4713 an ODD entry that may have been left behind. GOT and FD indicate
4714 the size of GOT entries and function descriptors that must be
4715 placed within the range from -WRAP to WRAP. If there's room left,
4716 up to FDPLT bytes should be reserved for additional function
4717 descriptors. */
4718
4719 inline static bfd_signed_vma
4720 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4721 bfd_signed_vma fdcur,
4722 bfd_signed_vma odd,
4723 bfd_signed_vma cur,
4724 bfd_vma got,
4725 bfd_vma fd,
4726 bfd_vma fdplt,
4727 bfd_vma tlsd,
4728 bfd_vma tlsdplt,
4729 bfd_vma wrap)
4730 {
4731 bfd_signed_vma wrapmin = -wrap;
4732 const bfd_vma tdescsz = 8;
4733
4734 /* Start at the given initial points. */
4735 gad->fdcur = fdcur;
4736 gad->cur = cur;
4737
4738 /* If we had an incoming odd word and we have any got entries that
4739 are going to use it, consume it, otherwise leave gad->odd at
4740 zero. We might force gad->odd to zero and return the incoming
4741 odd such that it is used by the next range, but then GOT entries
4742 might appear to be out of order and we wouldn't be able to
4743 shorten the GOT by one word if it turns out to end with an
4744 unpaired GOT entry. */
4745 if (odd && got)
4746 {
4747 gad->odd = odd;
4748 got -= 4;
4749 odd = 0;
4750 }
4751 else
4752 gad->odd = 0;
4753
4754 /* If we're left with an unpaired GOT entry, compute its location
4755 such that we can return it. Otherwise, if got doesn't require an
4756 odd number of words here, either odd was already zero in the
4757 block above, or it was set to zero because got was non-zero, or
4758 got was already zero. In the latter case, we want the value of
4759 odd to carry over to the return statement, so we don't want to
4760 reset odd unless the condition below is true. */
4761 if (got & 4)
4762 {
4763 odd = cur + got;
4764 got += 4;
4765 }
4766
4767 /* Compute the tentative boundaries of this range. */
4768 gad->max = cur + got;
4769 gad->min = fdcur - fd;
4770 gad->fdplt = 0;
4771
4772 /* If function descriptors took too much space, wrap some of them
4773 around. */
4774 if (gad->min < wrapmin)
4775 {
4776 gad->max += wrapmin - gad->min;
4777 gad->tmin = gad->min = wrapmin;
4778 }
4779
4780 /* If GOT entries took too much space, wrap some of them around.
4781 This may well cause gad->min to become lower than wrapmin. This
4782 will cause a relocation overflow later on, so we don't have to
4783 report it here . */
4784 if ((bfd_vma) gad->max > wrap)
4785 {
4786 gad->min -= gad->max - wrap;
4787 gad->max = wrap;
4788 }
4789
4790 /* Add TLS descriptors. */
4791 gad->tmax = gad->max + tlsd;
4792 gad->tmin = gad->min;
4793 gad->tlsdplt = 0;
4794
4795 /* If TLS descriptors took too much space, wrap an integral number
4796 of them around. */
4797 if ((bfd_vma) gad->tmax > wrap)
4798 {
4799 bfd_vma wrapsize = gad->tmax - wrap;
4800
4801 wrapsize += tdescsz / 2;
4802 wrapsize &= ~ tdescsz / 2;
4803
4804 gad->tmin -= wrapsize;
4805 gad->tmax -= wrapsize;
4806 }
4807
4808 /* If there is space left and we have function descriptors
4809 referenced in PLT entries that could take advantage of shorter
4810 offsets, place them now. */
4811 if (fdplt && gad->tmin > wrapmin)
4812 {
4813 bfd_vma fds;
4814
4815 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4816 fds = gad->tmin - wrapmin;
4817 else
4818 fds = fdplt;
4819
4820 fdplt -= fds;
4821 gad->min -= fds;
4822 gad->tmin -= fds;
4823 gad->fdplt += fds;
4824 }
4825
4826 /* If there is more space left, try to place some more function
4827 descriptors for PLT entries. */
4828 if (fdplt && (bfd_vma) gad->tmax < wrap)
4829 {
4830 bfd_vma fds;
4831
4832 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4833 fds = wrap - gad->tmax;
4834 else
4835 fds = fdplt;
4836
4837 fdplt -= fds;
4838 gad->max += fds;
4839 gad->tmax += fds;
4840 gad->fdplt += fds;
4841 }
4842
4843 /* If there is space left and we have TLS descriptors referenced in
4844 PLT entries that could take advantage of shorter offsets, place
4845 them now. */
4846 if (tlsdplt && gad->tmin > wrapmin)
4847 {
4848 bfd_vma tlsds;
4849
4850 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4851 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4852 else
4853 tlsds = tlsdplt;
4854
4855 tlsdplt -= tlsds;
4856 gad->tmin -= tlsds;
4857 gad->tlsdplt += tlsds;
4858 }
4859
4860 /* If there is more space left, try to place some more TLS
4861 descriptors for PLT entries. Although we could try to fit an
4862 additional TLS descriptor with half of it just before before the
4863 wrap point and another right past the wrap point, this might
4864 cause us to run out of space for the next region, so don't do
4865 it. */
4866 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4867 {
4868 bfd_vma tlsds;
4869
4870 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4871 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4872 else
4873 tlsds = tlsdplt;
4874
4875 tlsdplt -= tlsds;
4876 gad->tmax += tlsds;
4877 gad->tlsdplt += tlsds;
4878 }
4879
4880 /* If odd was initially computed as an offset past the wrap point,
4881 wrap it around. */
4882 if (odd > gad->max)
4883 odd = gad->min + odd - gad->max;
4884
4885 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4886 before returning, so do it here too. This guarantees that,
4887 should cur and fdcur meet at the wrap point, they'll both be
4888 equal to min. */
4889 if (gad->cur == gad->max)
4890 gad->cur = gad->min;
4891
4892 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
4893 gad->tcur = gad->max;
4894 if (gad->tcur == gad->tmax)
4895 gad->tcur = gad->tmin;
4896
4897 return odd;
4898 }
4899
4900 /* Compute the location of the next GOT entry, given the allocation
4901 data for a range. */
4902
4903 inline static bfd_signed_vma
4904 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4905 {
4906 bfd_signed_vma ret;
4907
4908 if (gad->odd)
4909 {
4910 /* If there was an odd word left behind, use it. */
4911 ret = gad->odd;
4912 gad->odd = 0;
4913 }
4914 else
4915 {
4916 /* Otherwise, use the word pointed to by cur, reserve the next
4917 as an odd word, and skip to the next pair of words, possibly
4918 wrapping around. */
4919 ret = gad->cur;
4920 gad->odd = gad->cur + 4;
4921 gad->cur += 8;
4922 if (gad->cur == gad->max)
4923 gad->cur = gad->min;
4924 }
4925
4926 return ret;
4927 }
4928
4929 /* Compute the location of the next function descriptor entry in the
4930 GOT, given the allocation data for a range. */
4931
4932 inline static bfd_signed_vma
4933 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4934 {
4935 /* If we're at the bottom, wrap around, and only then allocate the
4936 next pair of words. */
4937 if (gad->fdcur == gad->min)
4938 gad->fdcur = gad->max;
4939 return gad->fdcur -= 8;
4940 }
4941
4942 /* Compute the location of the next TLS descriptor entry in the GOT,
4943 given the allocation data for a range. */
4944 inline static bfd_signed_vma
4945 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4946 {
4947 bfd_signed_vma ret;
4948
4949 ret = gad->tcur;
4950
4951 gad->tcur += 8;
4952
4953 /* If we're at the top of the region, wrap around to the bottom. */
4954 if (gad->tcur == gad->tmax)
4955 gad->tcur = gad->tmin;
4956
4957 return ret;
4958 }
4959
4960 /* Assign GOT offsets for every GOT entry and function descriptor.
4961 Doing everything in a single pass is tricky. */
4962
4963 static int
4964 _frvfdpic_assign_got_entries (void **entryp, void *info_)
4965 {
4966 struct frvfdpic_relocs_info *entry = *entryp;
4967 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
4968
4969 if (entry->got12)
4970 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4971 else if (entry->gotlos)
4972 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4973 else if (entry->gothilo)
4974 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4975
4976 if (entry->fdgot12)
4977 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4978 else if (entry->fdgotlos)
4979 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4980 else if (entry->fdgothilo)
4981 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4982
4983 if (entry->fdgoff12)
4984 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4985 else if (entry->plt && dinfo->got12.fdplt)
4986 {
4987 dinfo->got12.fdplt -= 8;
4988 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4989 }
4990 else if (entry->fdgofflos)
4991 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4992 else if (entry->plt && dinfo->gotlos.fdplt)
4993 {
4994 dinfo->gotlos.fdplt -= 8;
4995 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4996 }
4997 else if (entry->plt)
4998 {
4999 dinfo->gothilo.fdplt -= 8;
5000 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5001 }
5002 else if (entry->privfd)
5003 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5004
5005 if (entry->tlsoff12)
5006 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5007 else if (entry->tlsofflos)
5008 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5009 else if (entry->tlsoffhilo)
5010 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5011
5012 if (entry->tlsdesc12)
5013 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5014 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5015 {
5016 dinfo->got12.tlsdplt -= 8;
5017 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5018 }
5019 else if (entry->tlsdesclos)
5020 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5021 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5022 {
5023 dinfo->gotlos.tlsdplt -= 8;
5024 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5025 }
5026 else if (entry->tlsplt)
5027 {
5028 dinfo->gothilo.tlsdplt -= 8;
5029 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5030 }
5031 else if (entry->tlsdeschilo)
5032 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5033
5034 return 1;
5035 }
5036
5037 /* Assign GOT offsets to private function descriptors used by PLT
5038 entries (or referenced by 32-bit offsets), as well as PLT entries
5039 and lazy PLT entries. */
5040
5041 static int
5042 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5043 {
5044 struct frvfdpic_relocs_info *entry = *entryp;
5045 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5046
5047 if (entry->privfd)
5048 BFD_ASSERT (entry->fd_entry);
5049
5050 if (entry->plt)
5051 {
5052 int size;
5053
5054 /* We use the section's raw size to mark the location of the
5055 next PLT entry. */
5056 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5057
5058 /* Figure out the length of this PLT entry based on the
5059 addressing mode we need to reach the function descriptor. */
5060 BFD_ASSERT (entry->fd_entry);
5061 if (entry->fd_entry >= -(1 << (12 - 1))
5062 && entry->fd_entry < (1 << (12 - 1)))
5063 size = 8;
5064 else if (entry->fd_entry >= -(1 << (16 - 1))
5065 && entry->fd_entry < (1 << (16 - 1)))
5066 size = 12;
5067 else
5068 size = 16;
5069
5070 frvfdpic_plt_section (dinfo->g.info)->size += size;
5071 }
5072
5073 if (entry->lazyplt)
5074 {
5075 entry->lzplt_entry = dinfo->g.lzplt;
5076 dinfo->g.lzplt += 8;
5077 /* If this entry is the one that gets the resolver stub, account
5078 for the additional instruction. */
5079 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5080 == FRVFDPIC_LZPLT_RESOLV_LOC)
5081 dinfo->g.lzplt += 4;
5082 }
5083
5084 if (entry->tlsplt)
5085 {
5086 int size;
5087
5088 entry->tlsplt_entry
5089 = frvfdpic_plt_section (dinfo->g.info)->size;
5090
5091 if (dinfo->g.info->executable
5092 && (entry->symndx != -1
5093 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5094 {
5095 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5096 /* FIXME: here we use the size of the TLS section
5097 as an upper bound for the value of the TLS
5098 symbol, because we may not know the exact value
5099 yet. If we get it wrong, we'll just waste a
5100 word in the PLT, and we should never get even
5101 close to 32 KiB of TLS anyway. */
5102 && elf_hash_table (dinfo->g.info)->tls_sec
5103 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5104 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5105 size = 8;
5106 else
5107 size = 12;
5108 }
5109 else if (entry->tlsoff_entry)
5110 {
5111 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5112 && entry->tlsoff_entry < (1 << (12 - 1)))
5113 size = 8;
5114 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5115 && entry->tlsoff_entry < (1 << (16 - 1)))
5116 size = 12;
5117 else
5118 size = 16;
5119 }
5120 else
5121 {
5122 BFD_ASSERT (entry->tlsdesc_entry);
5123
5124 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5125 && entry->tlsdesc_entry < (1 << (12 - 1)))
5126 size = 8;
5127 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5128 && entry->tlsdesc_entry < (1 << (16 - 1)))
5129 size = 12;
5130 else
5131 size = 16;
5132 }
5133
5134 frvfdpic_plt_section (dinfo->g.info)->size += size;
5135 }
5136
5137 return 1;
5138 }
5139
5140 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5141 _frvfdpic_assign_plt_entries. */
5142
5143 static int
5144 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5145 {
5146 struct frvfdpic_relocs_info *entry = *entryp;
5147
5148 entry->got_entry = 0;
5149 entry->fdgot_entry = 0;
5150 entry->fd_entry = 0;
5151 entry->plt_entry = (bfd_vma)-1;
5152 entry->lzplt_entry = (bfd_vma)-1;
5153 entry->tlsoff_entry = 0;
5154 entry->tlsdesc_entry = 0;
5155 entry->tlsplt_entry = (bfd_vma)-1;
5156
5157 return 1;
5158 }
5159
5160 /* Follow indirect and warning hash entries so that each got entry
5161 points to the final symbol definition. P must point to a pointer
5162 to the hash table we're traversing. Since this traversal may
5163 modify the hash table, we set this pointer to NULL to indicate
5164 we've made a potentially-destructive change to the hash table, so
5165 the traversal must be restarted. */
5166 static int
5167 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5168 {
5169 struct frvfdpic_relocs_info *entry = *entryp;
5170 htab_t *htab = p;
5171
5172 if (entry->symndx == -1)
5173 {
5174 struct elf_link_hash_entry *h = entry->d.h;
5175 struct frvfdpic_relocs_info *oentry;
5176
5177 while (h->root.type == bfd_link_hash_indirect
5178 || h->root.type == bfd_link_hash_warning)
5179 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5180
5181 if (entry->d.h == h)
5182 return 1;
5183
5184 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5185 NO_INSERT);
5186
5187 if (oentry)
5188 {
5189 /* Merge the two entries. */
5190 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5191 htab_clear_slot (*htab, entryp);
5192 return 1;
5193 }
5194
5195 entry->d.h = h;
5196
5197 /* If we can't find this entry with the new bfd hash, re-insert
5198 it, and get the traversal restarted. */
5199 if (! htab_find (*htab, entry))
5200 {
5201 htab_clear_slot (*htab, entryp);
5202 entryp = htab_find_slot (*htab, entry, INSERT);
5203 if (! *entryp)
5204 *entryp = entry;
5205 /* Abort the traversal, since the whole table may have
5206 moved, and leave it up to the parent to restart the
5207 process. */
5208 *(htab_t *)p = NULL;
5209 return 0;
5210 }
5211 }
5212
5213 return 1;
5214 }
5215
5216 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5217 section and the rofixup section. Assign locations for GOT and PLT
5218 entries. */
5219
5220 static bfd_boolean
5221 _frvfdpic_size_got_plt (bfd *output_bfd,
5222 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5223 {
5224 bfd_signed_vma odd;
5225 bfd_vma limit, tlslimit;
5226 struct bfd_link_info *info = gpinfop->g.info;
5227 bfd *dynobj = elf_hash_table (info)->dynobj;
5228
5229 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5230 sizeof (gpinfop->g));
5231
5232 odd = 12;
5233 /* Compute the total size taken by entries in the 12-bit and 16-bit
5234 ranges, to tell how many PLT function descriptors we can bring
5235 into the 12-bit range without causing the 16-bit range to
5236 overflow. */
5237 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5238 + gpinfop->g.fd12 + gpinfop->g.fdlos
5239 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5240 if (limit < (bfd_vma)1 << 16)
5241 limit = ((bfd_vma)1 << 16) - limit;
5242 else
5243 limit = 0;
5244 if (gpinfop->g.fdplt < limit)
5245 {
5246 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5247 limit = gpinfop->g.fdplt;
5248 }
5249 else
5250 tlslimit = 0;
5251 if (gpinfop->g.tlsdplt < tlslimit)
5252 tlslimit = gpinfop->g.tlsdplt;
5253
5254 /* Determine the ranges of GOT offsets that we can use for each
5255 range of addressing modes. */
5256 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5257 0,
5258 odd,
5259 16,
5260 gpinfop->g.got12,
5261 gpinfop->g.fd12,
5262 limit,
5263 gpinfop->g.tlsd12,
5264 tlslimit,
5265 (bfd_vma)1 << (12-1));
5266 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5267 gpinfop->got12.tmin,
5268 odd,
5269 gpinfop->got12.tmax,
5270 gpinfop->g.gotlos,
5271 gpinfop->g.fdlos,
5272 gpinfop->g.fdplt
5273 - gpinfop->got12.fdplt,
5274 gpinfop->g.tlsdlos,
5275 gpinfop->g.tlsdplt
5276 - gpinfop->got12.tlsdplt,
5277 (bfd_vma)1 << (16-1));
5278 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5279 gpinfop->gotlos.tmin,
5280 odd,
5281 gpinfop->gotlos.tmax,
5282 gpinfop->g.gothilo,
5283 gpinfop->g.fdhilo,
5284 gpinfop->g.fdplt
5285 - gpinfop->got12.fdplt
5286 - gpinfop->gotlos.fdplt,
5287 gpinfop->g.tlsdhilo,
5288 gpinfop->g.tlsdplt
5289 - gpinfop->got12.tlsdplt
5290 - gpinfop->gotlos.tlsdplt,
5291 (bfd_vma)1 << (32-1));
5292
5293 /* Now assign (most) GOT offsets. */
5294 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5295 gpinfop);
5296
5297 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5298 - gpinfop->gothilo.tmin
5299 /* If an odd word is the last word of the GOT, we don't need this
5300 word to be part of the GOT. */
5301 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5302 if (frvfdpic_got_section (info)->size == 0)
5303 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5304 else if (frvfdpic_got_section (info)->size == 12
5305 && ! elf_hash_table (info)->dynamic_sections_created)
5306 {
5307 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5308 frvfdpic_got_section (info)->size = 0;
5309 }
5310 /* This will be non-NULL during relaxation. The assumption is that
5311 the size of one of these sections will never grow, only shrink,
5312 so we can use the larger buffer we allocated before. */
5313 else if (frvfdpic_got_section (info)->contents == NULL)
5314 {
5315 frvfdpic_got_section (info)->contents =
5316 (bfd_byte *) bfd_zalloc (dynobj,
5317 frvfdpic_got_section (info)->size);
5318 if (frvfdpic_got_section (info)->contents == NULL)
5319 return FALSE;
5320 }
5321
5322 if (frvfdpic_gotrel_section (info))
5323 /* Subtract the number of lzplt entries, since those will generate
5324 relocations in the pltrel section. */
5325 frvfdpic_gotrel_section (info)->size =
5326 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5327 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5328 else
5329 BFD_ASSERT (gpinfop->g.relocs == 0);
5330 if (frvfdpic_gotrel_section (info)->size == 0)
5331 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5332 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5333 {
5334 frvfdpic_gotrel_section (info)->contents =
5335 (bfd_byte *) bfd_zalloc (dynobj,
5336 frvfdpic_gotrel_section (info)->size);
5337 if (frvfdpic_gotrel_section (info)->contents == NULL)
5338 return FALSE;
5339 }
5340
5341 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5342 if (frvfdpic_gotfixup_section (info)->size == 0)
5343 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5344 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5345 {
5346 frvfdpic_gotfixup_section (info)->contents =
5347 (bfd_byte *) bfd_zalloc (dynobj,
5348 frvfdpic_gotfixup_section (info)->size);
5349 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5350 return FALSE;
5351 }
5352
5353 if (frvfdpic_pltrel_section (info))
5354 {
5355 frvfdpic_pltrel_section (info)->size =
5356 gpinfop->g.lzplt / 8
5357 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5358 if (frvfdpic_pltrel_section (info)->size == 0)
5359 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5360 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5361 {
5362 frvfdpic_pltrel_section (info)->contents =
5363 (bfd_byte *) bfd_zalloc (dynobj,
5364 frvfdpic_pltrel_section (info)->size);
5365 if (frvfdpic_pltrel_section (info)->contents == NULL)
5366 return FALSE;
5367 }
5368 }
5369
5370 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5371 such that there's room for the additional instruction needed to
5372 call the resolver. Since _frvfdpic_assign_got_entries didn't
5373 account for them, our block size is 4 bytes smaller than the real
5374 block size. */
5375 if (frvfdpic_plt_section (info))
5376 {
5377 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5378 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5379 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5380 }
5381
5382 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5383 actually assign lazy PLT entries addresses. */
5384 gpinfop->g.lzplt = 0;
5385
5386 /* Save information that we're going to need to generate GOT and PLT
5387 entries. */
5388 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5389
5390 if (get_elf_backend_data (output_bfd)->want_got_sym)
5391 elf_hash_table (info)->hgot->root.u.def.value
5392 = frvfdpic_got_initial_offset (info);
5393
5394 if (frvfdpic_plt_section (info))
5395 frvfdpic_plt_initial_offset (info) =
5396 frvfdpic_plt_section (info)->size;
5397
5398 /* Allocate a ret statement at plt_initial_offset, to be used by
5399 locally-resolved TLS descriptors. */
5400 if (gpinfop->g.tls_ret_refs)
5401 frvfdpic_plt_section (info)->size += 4;
5402
5403 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5404 gpinfop);
5405
5406 /* Allocate the PLT section contents only after
5407 _frvfdpic_assign_plt_entries has a chance to add the size of the
5408 non-lazy PLT entries. */
5409 if (frvfdpic_plt_section (info))
5410 {
5411 if (frvfdpic_plt_section (info)->size == 0)
5412 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5413 else if (frvfdpic_plt_section (info)->contents == NULL)
5414 {
5415 frvfdpic_plt_section (info)->contents =
5416 (bfd_byte *) bfd_zalloc (dynobj,
5417 frvfdpic_plt_section (info)->size);
5418 if (frvfdpic_plt_section (info)->contents == NULL)
5419 return FALSE;
5420 }
5421 }
5422
5423 return TRUE;
5424 }
5425
5426 /* Set the sizes of the dynamic sections. */
5427
5428 static bfd_boolean
5429 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5430 struct bfd_link_info *info)
5431 {
5432 bfd *dynobj;
5433 asection *s;
5434 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5435
5436 dynobj = elf_hash_table (info)->dynobj;
5437 BFD_ASSERT (dynobj != NULL);
5438
5439 if (elf_hash_table (info)->dynamic_sections_created)
5440 {
5441 /* Set the contents of the .interp section to the interpreter. */
5442 if (info->executable)
5443 {
5444 s = bfd_get_linker_section (dynobj, ".interp");
5445 BFD_ASSERT (s != NULL);
5446 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5447 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5448 }
5449 }
5450
5451 memset (&gpinfo, 0, sizeof (gpinfo));
5452 gpinfo.g.info = info;
5453
5454 for (;;)
5455 {
5456 htab_t relocs = frvfdpic_relocs_info (info);
5457
5458 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5459
5460 if (relocs == frvfdpic_relocs_info (info))
5461 break;
5462 }
5463
5464 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5465 &gpinfo.g);
5466
5467 /* Allocate space to save the summary information, we're going to
5468 use it if we're doing relaxations. */
5469 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5470
5471 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5472 return FALSE;
5473
5474 if (elf_hash_table (info)->dynamic_sections_created)
5475 {
5476 if (frvfdpic_got_section (info)->size)
5477 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5478 return FALSE;
5479
5480 if (frvfdpic_pltrel_section (info)->size)
5481 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5482 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5483 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5484 return FALSE;
5485
5486 if (frvfdpic_gotrel_section (info)->size)
5487 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5488 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5489 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5490 sizeof (Elf32_External_Rel)))
5491 return FALSE;
5492 }
5493
5494 return TRUE;
5495 }
5496
5497 static bfd_boolean
5498 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5499 struct bfd_link_info *info)
5500 {
5501 if (!info->relocatable
5502 && !bfd_elf_stack_segment_size (output_bfd, info,
5503 "__stacksize", DEFAULT_STACK_SIZE))
5504 return FALSE;
5505
5506 return TRUE;
5507 }
5508
5509 /* Check whether any of the relocations was optimized away, and
5510 subtract it from the relocation or fixup count. */
5511 static bfd_boolean
5512 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5513 struct bfd_link_info *info,
5514
5515 bfd_boolean *changed)
5516 {
5517 Elf_Internal_Shdr *symtab_hdr;
5518 struct elf_link_hash_entry **sym_hashes;
5519 Elf_Internal_Rela *rel, *erel;
5520
5521 if ((sec->flags & SEC_RELOC) == 0
5522 || sec->reloc_count == 0)
5523 return TRUE;
5524
5525 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5526 sym_hashes = elf_sym_hashes (abfd);
5527
5528 rel = elf_section_data (sec)->relocs;
5529
5530 /* Now examine each relocation. */
5531 for (erel = rel + sec->reloc_count; rel < erel; rel++)
5532 {
5533 struct elf_link_hash_entry *h;
5534 unsigned long r_symndx;
5535 struct frvfdpic_relocs_info *picrel;
5536 struct _frvfdpic_dynamic_got_info *dinfo;
5537
5538 if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5539 && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5540 continue;
5541
5542 if (_bfd_elf_section_offset (sec->output_section->owner,
5543 info, sec, rel->r_offset)
5544 != (bfd_vma)-1)
5545 continue;
5546
5547 r_symndx = ELF32_R_SYM (rel->r_info);
5548 if (r_symndx < symtab_hdr->sh_info)
5549 h = NULL;
5550 else
5551 {
5552 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5553 while (h->root.type == bfd_link_hash_indirect
5554 || h->root.type == bfd_link_hash_warning)
5555 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5556 }
5557
5558 if (h != NULL)
5559 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5560 abfd, h,
5561 rel->r_addend, NO_INSERT);
5562 else
5563 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5564 abfd, r_symndx,
5565 rel->r_addend, NO_INSERT);
5566
5567 if (! picrel)
5568 return FALSE;
5569
5570 *changed = TRUE;
5571 dinfo = frvfdpic_dynamic_got_plt_info (info);
5572
5573 _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5574 if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5575 picrel->relocs32--;
5576 else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5577 picrel->relocsfd--;
5578 _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5579 }
5580
5581 return TRUE;
5582 }
5583
5584 static bfd_boolean
5585 frvfdpic_elf_discard_info (bfd *ibfd,
5586 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5587 struct bfd_link_info *info)
5588 {
5589 bfd_boolean changed = FALSE;
5590 asection *s;
5591 bfd *obfd = NULL;
5592
5593 /* Account for relaxation of .eh_frame section. */
5594 for (s = ibfd->sections; s; s = s->next)
5595 if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
5596 {
5597 if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5598 return FALSE;
5599 obfd = s->output_section->owner;
5600 }
5601
5602 if (changed)
5603 {
5604 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5605
5606 memset (&gpinfo, 0, sizeof (gpinfo));
5607 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5608 sizeof (gpinfo.g));
5609
5610 /* Clear GOT and PLT assignments. */
5611 htab_traverse (frvfdpic_relocs_info (info),
5612 _frvfdpic_reset_got_plt_entries,
5613 NULL);
5614
5615 if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5616 return FALSE;
5617 }
5618
5619 return TRUE;
5620 }
5621
5622 /* Look for opportunities to relax TLS relocations. We can assume
5623 we're linking the main executable or a static-tls library, since
5624 otherwise we wouldn't have got here. */
5625
5626 static int
5627 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5628 {
5629 struct frvfdpic_relocs_info *entry = *entryp;
5630 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5631
5632 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5633
5634 return 1;
5635 }
5636
5637 static bfd_boolean
5638 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5639 struct bfd_link_info *info, bfd_boolean *again)
5640 {
5641 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5642
5643 if (info->relocatable)
5644 (*info->callbacks->einfo)
5645 (_("%P%F: --relax and -r may not be used together\n"));
5646
5647 /* If we return early, we didn't change anything. */
5648 *again = FALSE;
5649
5650 /* We'll do our thing when requested to relax the GOT section. */
5651 if (sec != frvfdpic_got_section (info))
5652 return TRUE;
5653
5654 /* We can only relax when linking the main executable or a library
5655 that can't be dlopened. */
5656 if (! info->executable && ! (info->flags & DF_STATIC_TLS))
5657 return TRUE;
5658
5659 /* If there isn't a TLS section for this binary, we can't do
5660 anything about its TLS relocations (it probably doesn't have
5661 any. */
5662 if (elf_hash_table (info)->tls_sec == NULL)
5663 return TRUE;
5664
5665 memset (&gpinfo, 0, sizeof (gpinfo));
5666 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5667
5668 /* Now look for opportunities to relax, adjusting the GOT usage
5669 as needed. */
5670 htab_traverse (frvfdpic_relocs_info (info),
5671 _frvfdpic_relax_got_plt_entries,
5672 &gpinfo.g);
5673
5674 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5675 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5676 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5677 {
5678 /* Clear GOT and PLT assignments. */
5679 htab_traverse (frvfdpic_relocs_info (info),
5680 _frvfdpic_reset_got_plt_entries,
5681 NULL);
5682
5683 /* The owner of the TLS section is the output bfd. There should
5684 be a better way to get to it. */
5685 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5686 &gpinfo))
5687 return FALSE;
5688
5689 /* Repeat until we don't make any further changes. We could fail to
5690 introduce changes in a round if, for example, the 12-bit range is
5691 full, but we later release some space by getting rid of TLS
5692 descriptors in it. We have to repeat the whole process because
5693 we might have changed the size of a section processed before this
5694 one. */
5695 *again = TRUE;
5696 }
5697
5698 return TRUE;
5699 }
5700
5701 /* Fill in code and data in dynamic sections. */
5702
5703 static bfd_boolean
5704 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5705 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5706 {
5707 /* Nothing to be done for non-FDPIC. */
5708 return TRUE;
5709 }
5710
5711 static bfd_boolean
5712 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5713 struct bfd_link_info *info)
5714 {
5715 bfd *dynobj;
5716 asection *sdyn;
5717
5718 dynobj = elf_hash_table (info)->dynobj;
5719
5720 if (frvfdpic_dynamic_got_plt_info (info))
5721 {
5722 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5723 }
5724 if (frvfdpic_got_section (info))
5725 {
5726 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5727 == (frvfdpic_gotrel_section (info)->reloc_count
5728 * sizeof (Elf32_External_Rel)));
5729
5730 if (frvfdpic_gotfixup_section (info))
5731 {
5732 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5733 bfd_vma got_value = hgot->root.u.def.value
5734 + hgot->root.u.def.section->output_section->vma
5735 + hgot->root.u.def.section->output_offset;
5736 struct bfd_link_hash_entry *hend;
5737
5738 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5739 got_value, 0);
5740
5741 if (frvfdpic_gotfixup_section (info)->size
5742 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5743 {
5744 error:
5745 info->callbacks->einfo
5746 ("LINKER BUG: .rofixup section size mismatch\n");
5747 return FALSE;
5748 }
5749
5750 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5751 FALSE, FALSE, TRUE);
5752 if (hend
5753 && (hend->type == bfd_link_hash_defined
5754 || hend->type == bfd_link_hash_defweak)
5755 && hend->u.def.section->output_section != NULL)
5756 {
5757 bfd_vma value =
5758 frvfdpic_gotfixup_section (info)->output_section->vma
5759 + frvfdpic_gotfixup_section (info)->output_offset
5760 + frvfdpic_gotfixup_section (info)->size
5761 - hend->u.def.section->output_section->vma
5762 - hend->u.def.section->output_offset;
5763 BFD_ASSERT (hend->u.def.value == value);
5764 if (hend->u.def.value != value)
5765 goto error;
5766 }
5767 }
5768 }
5769 if (frvfdpic_pltrel_section (info))
5770 {
5771 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5772 == (frvfdpic_pltrel_section (info)->reloc_count
5773 * sizeof (Elf32_External_Rel)));
5774 }
5775
5776
5777 if (elf_hash_table (info)->dynamic_sections_created)
5778 {
5779 Elf32_External_Dyn * dyncon;
5780 Elf32_External_Dyn * dynconend;
5781
5782 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5783
5784 BFD_ASSERT (sdyn != NULL);
5785
5786 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5787 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5788
5789 for (; dyncon < dynconend; dyncon++)
5790 {
5791 Elf_Internal_Dyn dyn;
5792
5793 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5794
5795 switch (dyn.d_tag)
5796 {
5797 default:
5798 break;
5799
5800 case DT_PLTGOT:
5801 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5802 + frvfdpic_got_section (info)->output_offset
5803 + frvfdpic_got_initial_offset (info);
5804 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5805 break;
5806
5807 case DT_JMPREL:
5808 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5809 ->output_section->vma
5810 + frvfdpic_pltrel_section (info)->output_offset;
5811 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5812 break;
5813
5814 case DT_PLTRELSZ:
5815 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5816 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5817 break;
5818 }
5819 }
5820 }
5821
5822 return TRUE;
5823 }
5824
5825 /* Adjust a symbol defined by a dynamic object and referenced by a
5826 regular object. */
5827
5828 static bfd_boolean
5829 elf32_frvfdpic_adjust_dynamic_symbol
5830 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5831 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5832 {
5833 bfd * dynobj;
5834
5835 dynobj = elf_hash_table (info)->dynobj;
5836
5837 /* Make sure we know what is going on here. */
5838 BFD_ASSERT (dynobj != NULL
5839 && (h->u.weakdef != NULL
5840 || (h->def_dynamic
5841 && h->ref_regular
5842 && !h->def_regular)));
5843
5844 /* If this is a weak symbol, and there is a real definition, the
5845 processor independent code will have arranged for us to see the
5846 real definition first, and we can just use the same value. */
5847 if (h->u.weakdef != NULL)
5848 {
5849 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5850 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5851 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5852 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5853 }
5854
5855 return TRUE;
5856 }
5857
5858 /* Perform any actions needed for dynamic symbols. */
5859
5860 static bfd_boolean
5861 elf32_frvfdpic_finish_dynamic_symbol
5862 (bfd *output_bfd ATTRIBUTE_UNUSED,
5863 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5864 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5865 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5866 {
5867 return TRUE;
5868 }
5869
5870 /* Decide whether to attempt to turn absptr or lsda encodings in
5871 shared libraries into pcrel within the given input section. */
5872
5873 static bfd_boolean
5874 frvfdpic_elf_use_relative_eh_frame
5875 (bfd *input_bfd ATTRIBUTE_UNUSED,
5876 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5877 asection *eh_frame_section ATTRIBUTE_UNUSED)
5878 {
5879 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
5880 return FALSE;
5881 }
5882
5883 /* Adjust the contents of an eh_frame_hdr section before they're output. */
5884
5885 static bfd_byte
5886 frvfdpic_elf_encode_eh_address (bfd *abfd,
5887 struct bfd_link_info *info,
5888 asection *osec, bfd_vma offset,
5889 asection *loc_sec, bfd_vma loc_offset,
5890 bfd_vma *encoded)
5891 {
5892 struct elf_link_hash_entry *h;
5893
5894 h = elf_hash_table (info)->hgot;
5895 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
5896
5897 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
5898 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
5899 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
5900 loc_sec, loc_offset, encoded);
5901
5902 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
5903 == (_frvfdpic_osec_to_segment
5904 (abfd, h->root.u.def.section->output_section)));
5905
5906 *encoded = osec->vma + offset
5907 - (h->root.u.def.value
5908 + h->root.u.def.section->output_section->vma
5909 + h->root.u.def.section->output_offset);
5910
5911 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
5912 }
5913
5914 /* Look through the relocs for a section during the first phase.
5915
5916 Besides handling virtual table relocs for gc, we have to deal with
5917 all sorts of PIC-related relocations. We describe below the
5918 general plan on how to handle such relocations, even though we only
5919 collect information at this point, storing them in hash tables for
5920 perusal of later passes.
5921
5922 32 relocations are propagated to the linker output when creating
5923 position-independent output. LO16 and HI16 relocations are not
5924 supposed to be encountered in this case.
5925
5926 LABEL16 should always be resolvable by the linker, since it's only
5927 used by branches.
5928
5929 LABEL24, on the other hand, is used by calls. If it turns out that
5930 the target of a call is a dynamic symbol, a PLT entry must be
5931 created for it, which triggers the creation of a private function
5932 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
5933
5934 GPREL relocations require the referenced symbol to be in the same
5935 segment as _gp, but this can only be checked later.
5936
5937 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
5938 exist. LABEL24 might as well, since it may require a PLT entry,
5939 that will require a got.
5940
5941 Non-FUNCDESC GOT relocations require a GOT entry to be created
5942 regardless of whether the symbol is dynamic. However, since a
5943 global symbol that turns out to not be exported may have the same
5944 address of a non-dynamic symbol, we don't assign GOT entries at
5945 this point, such that we can share them in this case. A relocation
5946 for the GOT entry always has to be created, be it to offset a
5947 private symbol by the section load address, be it to get the symbol
5948 resolved dynamically.
5949
5950 FUNCDESC GOT relocations require a GOT entry to be created, and
5951 handled as if a FUNCDESC relocation was applied to the GOT entry in
5952 an object file.
5953
5954 FUNCDESC relocations referencing a symbol that turns out to NOT be
5955 dynamic cause a private function descriptor to be created. The
5956 FUNCDESC relocation then decays to a 32 relocation that points at
5957 the private descriptor. If the symbol is dynamic, the FUNCDESC
5958 relocation is propagated to the linker output, such that the
5959 dynamic linker creates the canonical descriptor, pointing to the
5960 dynamically-resolved definition of the function.
5961
5962 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
5963 symbols that are assigned to the same segment as the GOT, but we
5964 can only check this later, after we know the complete set of
5965 symbols defined and/or exported.
5966
5967 FUNCDESC GOTOFF relocations require a function descriptor to be
5968 created and, unless lazy binding is disabled or the symbol is not
5969 dynamic, a lazy PLT entry. Since we can't tell at this point
5970 whether a symbol is going to be dynamic, we have to decide later
5971 whether to create a lazy PLT entry or bind the descriptor directly
5972 to the private function.
5973
5974 FUNCDESC_VALUE relocations are not supposed to be present in object
5975 files, but they may very well be simply propagated to the linker
5976 output, since they have no side effect.
5977
5978
5979 A function descriptor always requires a FUNCDESC_VALUE relocation.
5980 Whether it's in .plt.rel or not depends on whether lazy binding is
5981 enabled and on whether the referenced symbol is dynamic.
5982
5983 The existence of a lazy PLT requires the resolverStub lazy PLT
5984 entry to be present.
5985
5986
5987 As for assignment of GOT, PLT and lazy PLT entries, and private
5988 descriptors, we might do them all sequentially, but we can do
5989 better than that. For example, we can place GOT entries and
5990 private function descriptors referenced using 12-bit operands
5991 closer to the PIC register value, such that these relocations don't
5992 overflow. Those that are only referenced with LO16 relocations
5993 could come next, but we may as well place PLT-required function
5994 descriptors in the 12-bit range to make them shorter. Symbols
5995 referenced with LO16/HI16 may come next, but we may place
5996 additional function descriptors in the 16-bit range if we can
5997 reliably tell that we've already placed entries that are ever
5998 referenced with only LO16. PLT entries are therefore generated as
5999 small as possible, while not introducing relocation overflows in
6000 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
6001 generated before or after PLT entries, but not intermingled with
6002 them, such that we can have more lazy PLT entries in range for a
6003 branch to the resolverStub. The resolverStub should be emitted at
6004 the most distant location from the first lazy PLT entry such that
6005 it's still in range for a branch, or closer, if there isn't a need
6006 for so many lazy PLT entries. Additional lazy PLT entries may be
6007 emitted after the resolverStub, as long as branches are still in
6008 range. If the branch goes out of range, longer lazy PLT entries
6009 are emitted.
6010
6011 We could further optimize PLT and lazy PLT entries by giving them
6012 priority in assignment to closer-to-gr17 locations depending on the
6013 number of occurrences of references to them (assuming a function
6014 that's called more often is more important for performance, so its
6015 PLT entry should be faster), or taking hints from the compiler.
6016 Given infinite time and money... :-) */
6017
6018 static bfd_boolean
6019 elf32_frv_check_relocs (bfd *abfd,
6020 struct bfd_link_info *info,
6021 asection *sec,
6022 const Elf_Internal_Rela *relocs)
6023 {
6024 Elf_Internal_Shdr *symtab_hdr;
6025 struct elf_link_hash_entry **sym_hashes;
6026 const Elf_Internal_Rela *rel;
6027 const Elf_Internal_Rela *rel_end;
6028 bfd *dynobj;
6029 struct frvfdpic_relocs_info *picrel;
6030
6031 if (info->relocatable)
6032 return TRUE;
6033
6034 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6035 sym_hashes = elf_sym_hashes (abfd);
6036
6037 dynobj = elf_hash_table (info)->dynobj;
6038 rel_end = relocs + sec->reloc_count;
6039 for (rel = relocs; rel < rel_end; rel++)
6040 {
6041 struct elf_link_hash_entry *h;
6042 unsigned long r_symndx;
6043
6044 r_symndx = ELF32_R_SYM (rel->r_info);
6045 if (r_symndx < symtab_hdr->sh_info)
6046 h = NULL;
6047 else
6048 {
6049 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6050 while (h->root.type == bfd_link_hash_indirect
6051 || h->root.type == bfd_link_hash_warning)
6052 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6053
6054 /* PR15323, ref flags aren't set for references in the same
6055 object. */
6056 h->root.non_ir_ref = 1;
6057 }
6058
6059 switch (ELF32_R_TYPE (rel->r_info))
6060 {
6061 case R_FRV_GETTLSOFF:
6062 case R_FRV_TLSDESC_VALUE:
6063 case R_FRV_GOTTLSDESC12:
6064 case R_FRV_GOTTLSDESCHI:
6065 case R_FRV_GOTTLSDESCLO:
6066 case R_FRV_GOTTLSOFF12:
6067 case R_FRV_GOTTLSOFFHI:
6068 case R_FRV_GOTTLSOFFLO:
6069 case R_FRV_TLSOFF:
6070 case R_FRV_GOT12:
6071 case R_FRV_GOTHI:
6072 case R_FRV_GOTLO:
6073 case R_FRV_FUNCDESC_GOT12:
6074 case R_FRV_FUNCDESC_GOTHI:
6075 case R_FRV_FUNCDESC_GOTLO:
6076 case R_FRV_GOTOFF12:
6077 case R_FRV_GOTOFFHI:
6078 case R_FRV_GOTOFFLO:
6079 case R_FRV_FUNCDESC_GOTOFF12:
6080 case R_FRV_FUNCDESC_GOTOFFHI:
6081 case R_FRV_FUNCDESC_GOTOFFLO:
6082 case R_FRV_FUNCDESC:
6083 case R_FRV_FUNCDESC_VALUE:
6084 case R_FRV_TLSMOFF12:
6085 case R_FRV_TLSMOFFHI:
6086 case R_FRV_TLSMOFFLO:
6087 case R_FRV_TLSMOFF:
6088 if (! IS_FDPIC (abfd))
6089 goto bad_reloc;
6090 /* Fall through. */
6091 case R_FRV_GPREL12:
6092 case R_FRV_GPRELU12:
6093 case R_FRV_GPRELHI:
6094 case R_FRV_GPRELLO:
6095 case R_FRV_LABEL24:
6096 case R_FRV_32:
6097 if (! dynobj)
6098 {
6099 elf_hash_table (info)->dynobj = dynobj = abfd;
6100 if (! _frv_create_got_section (abfd, info))
6101 return FALSE;
6102 }
6103 if (! IS_FDPIC (abfd))
6104 {
6105 picrel = NULL;
6106 break;
6107 }
6108 if (h != NULL)
6109 {
6110 if (h->dynindx == -1)
6111 switch (ELF_ST_VISIBILITY (h->other))
6112 {
6113 case STV_INTERNAL:
6114 case STV_HIDDEN:
6115 break;
6116 default:
6117 bfd_elf_link_record_dynamic_symbol (info, h);
6118 break;
6119 }
6120 picrel
6121 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6122 abfd, h,
6123 rel->r_addend, INSERT);
6124 }
6125 else
6126 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6127 (info), abfd, r_symndx,
6128 rel->r_addend, INSERT);
6129 if (! picrel)
6130 return FALSE;
6131 break;
6132
6133 default:
6134 picrel = NULL;
6135 break;
6136 }
6137
6138 switch (ELF32_R_TYPE (rel->r_info))
6139 {
6140 case R_FRV_LABEL24:
6141 if (IS_FDPIC (abfd))
6142 picrel->call = 1;
6143 break;
6144
6145 case R_FRV_FUNCDESC_VALUE:
6146 picrel->relocsfdv++;
6147 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6148 picrel->relocs32--;
6149 /* Fall through. */
6150
6151 case R_FRV_32:
6152 if (! IS_FDPIC (abfd))
6153 break;
6154
6155 picrel->sym = 1;
6156 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6157 picrel->relocs32++;
6158 break;
6159
6160 case R_FRV_GOT12:
6161 picrel->got12 = 1;
6162 break;
6163
6164 case R_FRV_GOTHI:
6165 case R_FRV_GOTLO:
6166 picrel->gothilo = 1;
6167 break;
6168
6169 case R_FRV_FUNCDESC_GOT12:
6170 picrel->fdgot12 = 1;
6171 break;
6172
6173 case R_FRV_FUNCDESC_GOTHI:
6174 case R_FRV_FUNCDESC_GOTLO:
6175 picrel->fdgothilo = 1;
6176 break;
6177
6178 case R_FRV_GOTOFF12:
6179 case R_FRV_GOTOFFHI:
6180 case R_FRV_GOTOFFLO:
6181 picrel->gotoff = 1;
6182 break;
6183
6184 case R_FRV_FUNCDESC_GOTOFF12:
6185 picrel->fdgoff12 = 1;
6186 break;
6187
6188 case R_FRV_FUNCDESC_GOTOFFHI:
6189 case R_FRV_FUNCDESC_GOTOFFLO:
6190 picrel->fdgoffhilo = 1;
6191 break;
6192
6193 case R_FRV_FUNCDESC:
6194 picrel->fd = 1;
6195 picrel->relocsfd++;
6196 break;
6197
6198 case R_FRV_GETTLSOFF:
6199 picrel->tlsplt = 1;
6200 break;
6201
6202 case R_FRV_TLSDESC_VALUE:
6203 picrel->relocstlsd++;
6204 goto bad_reloc;
6205
6206 case R_FRV_GOTTLSDESC12:
6207 picrel->tlsdesc12 = 1;
6208 break;
6209
6210 case R_FRV_GOTTLSDESCHI:
6211 case R_FRV_GOTTLSDESCLO:
6212 picrel->tlsdeschilo = 1;
6213 break;
6214
6215 case R_FRV_TLSMOFF12:
6216 case R_FRV_TLSMOFFHI:
6217 case R_FRV_TLSMOFFLO:
6218 case R_FRV_TLSMOFF:
6219 break;
6220
6221 case R_FRV_GOTTLSOFF12:
6222 picrel->tlsoff12 = 1;
6223 info->flags |= DF_STATIC_TLS;
6224 break;
6225
6226 case R_FRV_GOTTLSOFFHI:
6227 case R_FRV_GOTTLSOFFLO:
6228 picrel->tlsoffhilo = 1;
6229 info->flags |= DF_STATIC_TLS;
6230 break;
6231
6232 case R_FRV_TLSOFF:
6233 picrel->relocstlsoff++;
6234 info->flags |= DF_STATIC_TLS;
6235 goto bad_reloc;
6236
6237 /* This relocation describes the C++ object vtable hierarchy.
6238 Reconstruct it for later use during GC. */
6239 case R_FRV_GNU_VTINHERIT:
6240 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6241 return FALSE;
6242 break;
6243
6244 /* This relocation describes which C++ vtable entries are actually
6245 used. Record for later use during GC. */
6246 case R_FRV_GNU_VTENTRY:
6247 BFD_ASSERT (h != NULL);
6248 if (h != NULL
6249 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6250 return FALSE;
6251 break;
6252
6253 case R_FRV_LABEL16:
6254 case R_FRV_LO16:
6255 case R_FRV_HI16:
6256 case R_FRV_GPREL12:
6257 case R_FRV_GPRELU12:
6258 case R_FRV_GPREL32:
6259 case R_FRV_GPRELHI:
6260 case R_FRV_GPRELLO:
6261 case R_FRV_TLSDESC_RELAX:
6262 case R_FRV_GETTLSOFF_RELAX:
6263 case R_FRV_TLSOFF_RELAX:
6264 break;
6265
6266 default:
6267 bad_reloc:
6268 info->callbacks->einfo
6269 (_("%B: unsupported relocation type %i\n"),
6270 abfd, ELF32_R_TYPE (rel->r_info));
6271 return FALSE;
6272 }
6273 }
6274
6275 return TRUE;
6276 }
6277
6278 \f
6279 /* Return the machine subcode from the ELF e_flags header. */
6280
6281 static int
6282 elf32_frv_machine (bfd *abfd)
6283 {
6284 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6285 {
6286 default: break;
6287 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6288 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6289 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6290 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6291 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6292 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6293 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6294 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6295 }
6296
6297 return bfd_mach_frv;
6298 }
6299
6300 /* Set the right machine number for a FRV ELF file. */
6301
6302 static bfd_boolean
6303 elf32_frv_object_p (bfd *abfd)
6304 {
6305 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6306 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6307 == (IS_FDPIC (abfd)));
6308 }
6309 \f
6310 /* Function to set the ELF flag bits. */
6311
6312 static bfd_boolean
6313 frv_elf_set_private_flags (bfd *abfd, flagword flags)
6314 {
6315 elf_elfheader (abfd)->e_flags = flags;
6316 elf_flags_init (abfd) = TRUE;
6317 return TRUE;
6318 }
6319
6320 /* Return true if the architecture described by elf header flag
6321 EXTENSION is an extension of the architecture described by BASE. */
6322
6323 static bfd_boolean
6324 frv_elf_arch_extension_p (flagword base, flagword extension)
6325 {
6326 if (base == extension)
6327 return TRUE;
6328
6329 /* CPU_GENERIC code can be merged with code for a specific
6330 architecture, in which case the result is marked as being
6331 for the specific architecture. Everything is therefore
6332 an extension of CPU_GENERIC. */
6333 if (base == EF_FRV_CPU_GENERIC)
6334 return TRUE;
6335
6336 if (extension == EF_FRV_CPU_FR450)
6337 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6338 return TRUE;
6339
6340 if (extension == EF_FRV_CPU_FR405)
6341 if (base == EF_FRV_CPU_FR400)
6342 return TRUE;
6343
6344 return FALSE;
6345 }
6346
6347 /* Merge backend specific data from an object file to the output
6348 object file when linking. */
6349
6350 static bfd_boolean
6351 frv_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
6352 {
6353 flagword old_flags, old_partial;
6354 flagword new_flags, new_partial;
6355 bfd_boolean error = FALSE;
6356 char new_opt[80];
6357 char old_opt[80];
6358
6359 new_opt[0] = old_opt[0] = '\0';
6360 new_flags = elf_elfheader (ibfd)->e_flags;
6361 old_flags = elf_elfheader (obfd)->e_flags;
6362
6363 if (new_flags & EF_FRV_FDPIC)
6364 new_flags &= ~EF_FRV_PIC;
6365
6366 #ifdef DEBUG
6367 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6368 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6369 bfd_get_filename (ibfd));
6370 #endif
6371
6372 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6373 {
6374 elf_flags_init (obfd) = TRUE;
6375 old_flags = new_flags;
6376 }
6377
6378 else if (new_flags == old_flags) /* Compatible flags are ok. */
6379 ;
6380
6381 else /* Possibly incompatible flags. */
6382 {
6383 /* Warn if different # of gprs are used. Note, 0 means nothing is
6384 said about the size of gprs. */
6385 new_partial = (new_flags & EF_FRV_GPR_MASK);
6386 old_partial = (old_flags & EF_FRV_GPR_MASK);
6387 if (new_partial == old_partial)
6388 ;
6389
6390 else if (new_partial == 0)
6391 ;
6392
6393 else if (old_partial == 0)
6394 old_flags |= new_partial;
6395
6396 else
6397 {
6398 switch (new_partial)
6399 {
6400 default: strcat (new_opt, " -mgpr-??"); break;
6401 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6402 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6403 }
6404
6405 switch (old_partial)
6406 {
6407 default: strcat (old_opt, " -mgpr-??"); break;
6408 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6409 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6410 }
6411 }
6412
6413 /* Warn if different # of fprs are used. Note, 0 means nothing is
6414 said about the size of fprs. */
6415 new_partial = (new_flags & EF_FRV_FPR_MASK);
6416 old_partial = (old_flags & EF_FRV_FPR_MASK);
6417 if (new_partial == old_partial)
6418 ;
6419
6420 else if (new_partial == 0)
6421 ;
6422
6423 else if (old_partial == 0)
6424 old_flags |= new_partial;
6425
6426 else
6427 {
6428 switch (new_partial)
6429 {
6430 default: strcat (new_opt, " -mfpr-?"); break;
6431 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6432 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6433 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6434 }
6435
6436 switch (old_partial)
6437 {
6438 default: strcat (old_opt, " -mfpr-?"); break;
6439 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6440 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6441 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6442 }
6443 }
6444
6445 /* Warn if different dword support was used. Note, 0 means nothing is
6446 said about the dword support. */
6447 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6448 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6449 if (new_partial == old_partial)
6450 ;
6451
6452 else if (new_partial == 0)
6453 ;
6454
6455 else if (old_partial == 0)
6456 old_flags |= new_partial;
6457
6458 else
6459 {
6460 switch (new_partial)
6461 {
6462 default: strcat (new_opt, " -mdword-?"); break;
6463 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6464 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6465 }
6466
6467 switch (old_partial)
6468 {
6469 default: strcat (old_opt, " -mdword-?"); break;
6470 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6471 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6472 }
6473 }
6474
6475 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6476 feature is used. */
6477 old_flags |= new_flags & (EF_FRV_DOUBLE
6478 | EF_FRV_MEDIA
6479 | EF_FRV_MULADD
6480 | EF_FRV_NON_PIC_RELOCS);
6481
6482 /* If any module was compiled without -G0, clear the G0 bit. */
6483 old_flags = ((old_flags & ~ EF_FRV_G0)
6484 | (old_flags & new_flags & EF_FRV_G0));
6485
6486 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6487 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6488 | (old_flags & new_flags & EF_FRV_NOPACK));
6489
6490 /* We don't have to do anything if the pic flags are the same, or the new
6491 module(s) were compiled with -mlibrary-pic. */
6492 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6493 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6494 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6495 ;
6496
6497 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6498 flags if any from the new module. */
6499 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6500 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6501
6502 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6503 else if (new_partial != 0 && old_partial != 0)
6504 old_flags |= new_partial;
6505
6506 /* One module was compiled for pic and the other was not, see if we have
6507 had any relocations that are not pic-safe. */
6508 else
6509 {
6510 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6511 old_flags |= new_partial;
6512 else
6513 {
6514 old_flags &= ~ EF_FRV_PIC_FLAGS;
6515 #ifndef FRV_NO_PIC_ERROR
6516 error = TRUE;
6517 (*_bfd_error_handler)
6518 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6519 bfd_get_filename (ibfd),
6520 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6521 #endif
6522 }
6523 }
6524
6525 /* Warn if different cpu is used (allow a specific cpu to override
6526 the generic cpu). */
6527 new_partial = (new_flags & EF_FRV_CPU_MASK);
6528 old_partial = (old_flags & EF_FRV_CPU_MASK);
6529 if (frv_elf_arch_extension_p (new_partial, old_partial))
6530 ;
6531
6532 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6533 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6534
6535 else
6536 {
6537 switch (new_partial)
6538 {
6539 default: strcat (new_opt, " -mcpu=?"); break;
6540 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6541 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6542 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6543 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6544 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6545 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6546 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6547 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6548 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6549 }
6550
6551 switch (old_partial)
6552 {
6553 default: strcat (old_opt, " -mcpu=?"); break;
6554 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6555 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6556 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6557 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6558 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6559 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6560 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6561 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6562 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6563 }
6564 }
6565
6566 /* Print out any mismatches from above. */
6567 if (new_opt[0])
6568 {
6569 error = TRUE;
6570 (*_bfd_error_handler)
6571 (_("%s: compiled with %s and linked with modules compiled with %s"),
6572 bfd_get_filename (ibfd), new_opt, old_opt);
6573 }
6574
6575 /* Warn about any other mismatches */
6576 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6577 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6578 if (new_partial != old_partial)
6579 {
6580 old_flags |= new_partial;
6581 error = TRUE;
6582 (*_bfd_error_handler)
6583 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6584 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6585 }
6586 }
6587
6588 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6589 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6590 old_flags |= EF_FRV_NOPACK;
6591
6592 /* Update the old flags now with changes made above. */
6593 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6594 elf_elfheader (obfd)->e_flags = old_flags;
6595 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6596 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6597
6598 if (((new_flags & EF_FRV_FDPIC) == 0)
6599 != (! IS_FDPIC (ibfd)))
6600 {
6601 error = TRUE;
6602 if (IS_FDPIC (obfd))
6603 (*_bfd_error_handler)
6604 (_("%s: cannot link non-fdpic object file into fdpic executable"),
6605 bfd_get_filename (ibfd));
6606 else
6607 (*_bfd_error_handler)
6608 (_("%s: cannot link fdpic object file into non-fdpic executable"),
6609 bfd_get_filename (ibfd));
6610 }
6611
6612 if (error)
6613 bfd_set_error (bfd_error_bad_value);
6614
6615 return !error;
6616 }
6617
6618 \f
6619 static bfd_boolean
6620 frv_elf_print_private_bfd_data (bfd *abfd, void * ptr)
6621 {
6622 FILE *file = (FILE *) ptr;
6623 flagword flags;
6624
6625 BFD_ASSERT (abfd != NULL && ptr != NULL);
6626
6627 /* Print normal ELF private data. */
6628 _bfd_elf_print_private_bfd_data (abfd, ptr);
6629
6630 flags = elf_elfheader (abfd)->e_flags;
6631 fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6632
6633 switch (flags & EF_FRV_CPU_MASK)
6634 {
6635 default: break;
6636 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6637 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6638 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6639 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6640 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6641 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6642 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6643 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6644 }
6645
6646 switch (flags & EF_FRV_GPR_MASK)
6647 {
6648 default: break;
6649 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6650 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6651 }
6652
6653 switch (flags & EF_FRV_FPR_MASK)
6654 {
6655 default: break;
6656 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6657 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6658 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6659 }
6660
6661 switch (flags & EF_FRV_DWORD_MASK)
6662 {
6663 default: break;
6664 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6665 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6666 }
6667
6668 if (flags & EF_FRV_DOUBLE)
6669 fprintf (file, " -mdouble");
6670
6671 if (flags & EF_FRV_MEDIA)
6672 fprintf (file, " -mmedia");
6673
6674 if (flags & EF_FRV_MULADD)
6675 fprintf (file, " -mmuladd");
6676
6677 if (flags & EF_FRV_PIC)
6678 fprintf (file, " -fpic");
6679
6680 if (flags & EF_FRV_BIGPIC)
6681 fprintf (file, " -fPIC");
6682
6683 if (flags & EF_FRV_LIBPIC)
6684 fprintf (file, " -mlibrary-pic");
6685
6686 if (flags & EF_FRV_FDPIC)
6687 fprintf (file, " -mfdpic");
6688
6689 if (flags & EF_FRV_NON_PIC_RELOCS)
6690 fprintf (file, " non-pic relocations");
6691
6692 if (flags & EF_FRV_G0)
6693 fprintf (file, " -G0");
6694
6695 fputc ('\n', file);
6696 return TRUE;
6697 }
6698
6699 \f
6700 /* Support for core dump NOTE sections. */
6701
6702 static bfd_boolean
6703 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6704 {
6705 int offset;
6706 unsigned int raw_size;
6707
6708 switch (note->descsz)
6709 {
6710 default:
6711 return FALSE;
6712
6713 /* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
6714 hardcoded offsets and sizes listed below (and contained within
6715 this lexical block) refer to fields in the target's elf_prstatus
6716 struct. */
6717 case 268:
6718 /* `pr_cursig' is at offset 12. */
6719 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6720
6721 /* `pr_pid' is at offset 24. */
6722 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6723
6724 /* `pr_reg' is at offset 72. */
6725 offset = 72;
6726
6727 /* Most grok_prstatus implementations set `raw_size' to the size
6728 of the pr_reg field. For Linux/FRV, we set `raw_size' to be
6729 the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6730 and `pr_interp_fdpic_loadmap', both of which (by design)
6731 immediately follow `pr_reg'. This will allow these fields to
6732 be viewed by GDB as registers.
6733
6734 `pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
6735 `pr_interp_fdpic_loadmap' are 4 bytes each. */
6736 raw_size = 184 + 4 + 4;
6737
6738 break;
6739 }
6740
6741 /* Make a ".reg/999" section. */
6742 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6743 note->descpos + offset);
6744 }
6745
6746 static bfd_boolean
6747 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6748 {
6749 switch (note->descsz)
6750 {
6751 default:
6752 return FALSE;
6753
6754 /* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
6755 case 124:
6756
6757 /* `pr_fname' is found at offset 28 and is 16 bytes long. */
6758 elf_tdata (abfd)->core->program
6759 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6760
6761 /* `pr_psargs' is found at offset 44 and is 80 bytes long. */
6762 elf_tdata (abfd)->core->command
6763 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6764 }
6765
6766 /* Note that for some reason, a spurious space is tacked
6767 onto the end of the args in some (at least one anyway)
6768 implementations, so strip it off if it exists. */
6769
6770 {
6771 char *command = elf_tdata (abfd)->core->command;
6772 int n = strlen (command);
6773
6774 if (0 < n && command[n - 1] == ' ')
6775 command[n - 1] = '\0';
6776 }
6777
6778 return TRUE;
6779 }
6780 #define ELF_ARCH bfd_arch_frv
6781 #define ELF_TARGET_ID FRV_ELF_DATA
6782 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
6783 #define ELF_MAXPAGESIZE 0x1000
6784
6785 #define TARGET_BIG_SYM frv_elf32_vec
6786 #define TARGET_BIG_NAME "elf32-frv"
6787
6788 #define elf_info_to_howto frv_info_to_howto_rela
6789 #define elf_backend_relocate_section elf32_frv_relocate_section
6790 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
6791 #define elf_backend_check_relocs elf32_frv_check_relocs
6792 #define elf_backend_object_p elf32_frv_object_p
6793 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
6794
6795 #define elf_backend_stack_align 8
6796 #define elf_backend_can_gc_sections 1
6797 #define elf_backend_rela_normal 1
6798
6799 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
6800 #define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
6801 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
6802 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
6803 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
6804
6805 #define elf_backend_want_got_sym 1
6806 #define elf_backend_got_header_size 0
6807 #define elf_backend_want_got_plt 0
6808 #define elf_backend_plt_readonly 1
6809 #define elf_backend_want_plt_sym 0
6810 #define elf_backend_plt_header_size 0
6811
6812 #define elf_backend_finish_dynamic_sections \
6813 elf32_frv_finish_dynamic_sections
6814
6815 #define elf_backend_grok_prstatus elf32_frv_grok_prstatus
6816 #define elf_backend_grok_psinfo elf32_frv_grok_psinfo
6817
6818 #include "elf32-target.h"
6819
6820 #undef ELF_MAXPAGESIZE
6821 #define ELF_MAXPAGESIZE 0x4000
6822
6823 #undef TARGET_BIG_SYM
6824 #define TARGET_BIG_SYM frv_elf32_fdpic_vec
6825 #undef TARGET_BIG_NAME
6826 #define TARGET_BIG_NAME "elf32-frvfdpic"
6827 #undef elf32_bed
6828 #define elf32_bed elf32_frvfdpic_bed
6829
6830 #undef elf_info_to_howto_rel
6831 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
6832
6833 #undef bfd_elf32_bfd_link_hash_table_create
6834 #define bfd_elf32_bfd_link_hash_table_create \
6835 frvfdpic_elf_link_hash_table_create
6836 #undef elf_backend_always_size_sections
6837 #define elf_backend_always_size_sections \
6838 elf32_frvfdpic_always_size_sections
6839
6840 #undef elf_backend_create_dynamic_sections
6841 #define elf_backend_create_dynamic_sections \
6842 elf32_frvfdpic_create_dynamic_sections
6843 #undef elf_backend_adjust_dynamic_symbol
6844 #define elf_backend_adjust_dynamic_symbol \
6845 elf32_frvfdpic_adjust_dynamic_symbol
6846 #undef elf_backend_size_dynamic_sections
6847 #define elf_backend_size_dynamic_sections \
6848 elf32_frvfdpic_size_dynamic_sections
6849 #undef bfd_elf32_bfd_relax_section
6850 #define bfd_elf32_bfd_relax_section \
6851 elf32_frvfdpic_relax_section
6852 #undef elf_backend_finish_dynamic_symbol
6853 #define elf_backend_finish_dynamic_symbol \
6854 elf32_frvfdpic_finish_dynamic_symbol
6855 #undef elf_backend_finish_dynamic_sections
6856 #define elf_backend_finish_dynamic_sections \
6857 elf32_frvfdpic_finish_dynamic_sections
6858
6859 #undef elf_backend_discard_info
6860 #define elf_backend_discard_info \
6861 frvfdpic_elf_discard_info
6862 #undef elf_backend_can_make_relative_eh_frame
6863 #define elf_backend_can_make_relative_eh_frame \
6864 frvfdpic_elf_use_relative_eh_frame
6865 #undef elf_backend_can_make_lsda_relative_eh_frame
6866 #define elf_backend_can_make_lsda_relative_eh_frame \
6867 frvfdpic_elf_use_relative_eh_frame
6868 #undef elf_backend_encode_eh_address
6869 #define elf_backend_encode_eh_address \
6870 frvfdpic_elf_encode_eh_address
6871
6872 #undef elf_backend_may_use_rel_p
6873 #define elf_backend_may_use_rel_p 1
6874 #undef elf_backend_may_use_rela_p
6875 #define elf_backend_may_use_rela_p 1
6876 /* We use REL for dynamic relocations only. */
6877 #undef elf_backend_default_use_rela_p
6878 #define elf_backend_default_use_rela_p 1
6879
6880 #undef elf_backend_omit_section_dynsym
6881 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
6882
6883 #include "elf32-target.h"
GDB Binutils - Deliverables
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