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[PATCH] fix windmc typedef bug
[thirdparty/binutils-gdb.git] / bfd / elf32-frv.c
1 /* FRV-specific support for 32-bit ELF.
2 Copyright (C) 2002-2020 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 #include "libiberty.h"
29
30 /* Forward declarations. */
31
32
33 static reloc_howto_type elf32_frv_howto_table [] =
34 {
35 /* This reloc does nothing. */
36 HOWTO (R_FRV_NONE, /* type */
37 0, /* rightshift */
38 3, /* size (0 = byte, 1 = short, 2 = long) */
39 0, /* bitsize */
40 FALSE, /* pc_relative */
41 0, /* bitpos */
42 complain_overflow_dont, /* complain_on_overflow */
43 bfd_elf_generic_reloc, /* special_function */
44 "R_FRV_NONE", /* name */
45 FALSE, /* partial_inplace */
46 0, /* src_mask */
47 0, /* dst_mask */
48 FALSE), /* pcrel_offset */
49
50 /* A 32 bit absolute relocation. */
51 HOWTO (R_FRV_32, /* type */
52 0, /* rightshift */
53 2, /* size (0 = byte, 1 = short, 2 = long) */
54 32, /* bitsize */
55 FALSE, /* pc_relative */
56 0, /* bitpos */
57 complain_overflow_bitfield, /* complain_on_overflow */
58 bfd_elf_generic_reloc, /* special_function */
59 "R_FRV_32", /* name */
60 FALSE, /* partial_inplace */
61 0xffffffff, /* src_mask */
62 0xffffffff, /* dst_mask */
63 FALSE), /* pcrel_offset */
64
65 /* A 16 bit pc-relative relocation. */
66 HOWTO (R_FRV_LABEL16, /* type */
67 2, /* rightshift */
68 2, /* size (0 = byte, 1 = short, 2 = long) */
69 16, /* bitsize */
70 TRUE, /* pc_relative */
71 0, /* bitpos */
72 complain_overflow_signed, /* complain_on_overflow */
73 bfd_elf_generic_reloc, /* special_function */
74 "R_FRV_LABEL16", /* name */
75 FALSE, /* partial_inplace */
76 0xffff, /* src_mask */
77 0xffff, /* dst_mask */
78 TRUE), /* pcrel_offset */
79
80 /* A 24-bit pc-relative relocation. */
81 HOWTO (R_FRV_LABEL24, /* type */
82 2, /* rightshift */
83 2, /* size (0 = byte, 1 = short, 2 = long) */
84 26, /* bitsize */
85 TRUE, /* pc_relative */
86 0, /* bitpos */
87 complain_overflow_bitfield, /* complain_on_overflow */
88 bfd_elf_generic_reloc, /* special_function */
89 "R_FRV_LABEL24", /* name */
90 FALSE, /* partial_inplace */
91 0x7e03ffff, /* src_mask */
92 0x7e03ffff, /* dst_mask */
93 TRUE), /* pcrel_offset */
94
95 HOWTO (R_FRV_LO16, /* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 16, /* bitsize */
99 FALSE, /* pc_relative */
100 0, /* bitpos */
101 complain_overflow_dont, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_FRV_LO16", /* name */
104 FALSE, /* partial_inplace */
105 0xffff, /* src_mask */
106 0xffff, /* dst_mask */
107 FALSE), /* pcrel_offset */
108
109 HOWTO (R_FRV_HI16, /* type */
110 0, /* rightshift */
111 2, /* size (0 = byte, 1 = short, 2 = long) */
112 16, /* bitsize */
113 FALSE, /* pc_relative */
114 0, /* bitpos */
115 complain_overflow_dont, /* complain_on_overflow */
116 bfd_elf_generic_reloc, /* special_function */
117 "R_FRV_HI16", /* name */
118 FALSE, /* partial_inplace */
119 0xffff, /* src_mask */
120 0xffff, /* dst_mask */
121 FALSE), /* pcrel_offset */
122
123 HOWTO (R_FRV_GPREL12, /* type */
124 0, /* rightshift */
125 2, /* size (0 = byte, 1 = short, 2 = long) */
126 12, /* bitsize */
127 FALSE, /* pc_relative */
128 0, /* bitpos */
129 complain_overflow_dont, /* complain_on_overflow */
130 bfd_elf_generic_reloc, /* special_function */
131 "R_FRV_GPREL12", /* name */
132 FALSE, /* partial_inplace */
133 0xfff, /* src_mask */
134 0xfff, /* dst_mask */
135 FALSE), /* pcrel_offset */
136
137 HOWTO (R_FRV_GPRELU12, /* type */
138 0, /* rightshift */
139 2, /* size (0 = byte, 1 = short, 2 = long) */
140 12, /* bitsize */
141 FALSE, /* pc_relative */
142 0, /* bitpos */
143 complain_overflow_dont, /* complain_on_overflow */
144 bfd_elf_generic_reloc, /* special_function */
145 "R_FRV_GPRELU12", /* name */
146 FALSE, /* partial_inplace */
147 0xfff, /* src_mask */
148 0x3f03f, /* dst_mask */
149 FALSE), /* pcrel_offset */
150
151 HOWTO (R_FRV_GPREL32, /* type */
152 0, /* rightshift */
153 2, /* size (0 = byte, 1 = short, 2 = long) */
154 32, /* bitsize */
155 FALSE, /* pc_relative */
156 0, /* bitpos */
157 complain_overflow_dont, /* complain_on_overflow */
158 bfd_elf_generic_reloc, /* special_function */
159 "R_FRV_GPREL32", /* name */
160 FALSE, /* partial_inplace */
161 0xffffffff, /* src_mask */
162 0xffffffff, /* dst_mask */
163 FALSE), /* pcrel_offset */
164
165 HOWTO (R_FRV_GPRELHI, /* type */
166 0, /* rightshift */
167 2, /* size (0 = byte, 1 = short, 2 = long) */
168 16, /* bitsize */
169 FALSE, /* pc_relative */
170 0, /* bitpos */
171 complain_overflow_dont, /* complain_on_overflow */
172 bfd_elf_generic_reloc, /* special_function */
173 "R_FRV_GPRELHI", /* name */
174 FALSE, /* partial_inplace */
175 0xffff, /* src_mask */
176 0xffff, /* dst_mask */
177 FALSE), /* pcrel_offset */
178
179 HOWTO (R_FRV_GPRELLO, /* type */
180 0, /* rightshift */
181 2, /* size (0 = byte, 1 = short, 2 = long) */
182 16, /* bitsize */
183 FALSE, /* pc_relative */
184 0, /* bitpos */
185 complain_overflow_dont, /* complain_on_overflow */
186 bfd_elf_generic_reloc, /* special_function */
187 "R_FRV_GPRELLO", /* name */
188 FALSE, /* partial_inplace */
189 0xffff, /* src_mask */
190 0xffff, /* dst_mask */
191 FALSE), /* pcrel_offset */
192
193 /* A 12-bit signed operand with the GOT offset for the address of
194 the symbol. */
195 HOWTO (R_FRV_GOT12, /* type */
196 0, /* rightshift */
197 2, /* size (0 = byte, 1 = short, 2 = long) */
198 12, /* bitsize */
199 FALSE, /* pc_relative */
200 0, /* bitpos */
201 complain_overflow_signed, /* complain_on_overflow */
202 bfd_elf_generic_reloc, /* special_function */
203 "R_FRV_GOT12", /* name */
204 FALSE, /* partial_inplace */
205 0xfff, /* src_mask */
206 0xfff, /* dst_mask */
207 FALSE), /* pcrel_offset */
208
209 /* The upper 16 bits of the GOT offset for the address of the
210 symbol. */
211 HOWTO (R_FRV_GOTHI, /* type */
212 0, /* rightshift */
213 2, /* size (0 = byte, 1 = short, 2 = long) */
214 16, /* bitsize */
215 FALSE, /* pc_relative */
216 0, /* bitpos */
217 complain_overflow_dont, /* complain_on_overflow */
218 bfd_elf_generic_reloc, /* special_function */
219 "R_FRV_GOTHI", /* name */
220 FALSE, /* partial_inplace */
221 0xffff, /* src_mask */
222 0xffff, /* dst_mask */
223 FALSE), /* pcrel_offset */
224
225 /* The lower 16 bits of the GOT offset for the address of the
226 symbol. */
227 HOWTO (R_FRV_GOTLO, /* type */
228 0, /* rightshift */
229 2, /* size (0 = byte, 1 = short, 2 = long) */
230 16, /* bitsize */
231 FALSE, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_FRV_GOTLO", /* name */
236 FALSE, /* partial_inplace */
237 0xffff, /* src_mask */
238 0xffff, /* dst_mask */
239 FALSE), /* pcrel_offset */
240
241 /* The 32-bit address of the canonical descriptor of a function. */
242 HOWTO (R_FRV_FUNCDESC, /* type */
243 0, /* rightshift */
244 2, /* size (0 = byte, 1 = short, 2 = long) */
245 32, /* bitsize */
246 FALSE, /* pc_relative */
247 0, /* bitpos */
248 complain_overflow_bitfield, /* complain_on_overflow */
249 bfd_elf_generic_reloc, /* special_function */
250 "R_FRV_FUNCDESC", /* name */
251 FALSE, /* partial_inplace */
252 0xffffffff, /* src_mask */
253 0xffffffff, /* dst_mask */
254 FALSE), /* pcrel_offset */
255
256 /* A 12-bit signed operand with the GOT offset for the address of
257 canonical descriptor of a function. */
258 HOWTO (R_FRV_FUNCDESC_GOT12, /* type */
259 0, /* rightshift */
260 2, /* size (0 = byte, 1 = short, 2 = long) */
261 12, /* bitsize */
262 FALSE, /* pc_relative */
263 0, /* bitpos */
264 complain_overflow_signed, /* complain_on_overflow */
265 bfd_elf_generic_reloc, /* special_function */
266 "R_FRV_FUNCDESC_GOT12", /* name */
267 FALSE, /* partial_inplace */
268 0xfff, /* src_mask */
269 0xfff, /* dst_mask */
270 FALSE), /* pcrel_offset */
271
272 /* The upper 16 bits of the GOT offset for the address of the
273 canonical descriptor of a function. */
274 HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */
275 0, /* rightshift */
276 2, /* size (0 = byte, 1 = short, 2 = long) */
277 16, /* bitsize */
278 FALSE, /* pc_relative */
279 0, /* bitpos */
280 complain_overflow_dont, /* complain_on_overflow */
281 bfd_elf_generic_reloc, /* special_function */
282 "R_FRV_FUNCDESC_GOTHI", /* name */
283 FALSE, /* partial_inplace */
284 0xffff, /* src_mask */
285 0xffff, /* dst_mask */
286 FALSE), /* pcrel_offset */
287
288 /* The lower 16 bits of the GOT offset for the address of the
289 canonical descriptor of a function. */
290 HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */
291 0, /* rightshift */
292 2, /* size (0 = byte, 1 = short, 2 = long) */
293 16, /* bitsize */
294 FALSE, /* pc_relative */
295 0, /* bitpos */
296 complain_overflow_dont, /* complain_on_overflow */
297 bfd_elf_generic_reloc, /* special_function */
298 "R_FRV_FUNCDESC_GOTLO", /* name */
299 FALSE, /* partial_inplace */
300 0xffff, /* src_mask */
301 0xffff, /* dst_mask */
302 FALSE), /* pcrel_offset */
303
304 /* The 64-bit descriptor of a function. */
305 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
306 0, /* rightshift */
307 2, /* size (0 = byte, 1 = short, 2 = long) */
308 64, /* bitsize */
309 FALSE, /* pc_relative */
310 0, /* bitpos */
311 complain_overflow_bitfield, /* complain_on_overflow */
312 bfd_elf_generic_reloc, /* special_function */
313 "R_FRV_FUNCDESC_VALUE", /* name */
314 FALSE, /* partial_inplace */
315 0xffffffff, /* src_mask */
316 0xffffffff, /* dst_mask */
317 FALSE), /* pcrel_offset */
318
319 /* A 12-bit signed operand with the GOT offset for the address of
320 canonical descriptor of a function. */
321 HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
322 0, /* rightshift */
323 2, /* size (0 = byte, 1 = short, 2 = long) */
324 12, /* bitsize */
325 FALSE, /* pc_relative */
326 0, /* bitpos */
327 complain_overflow_signed, /* complain_on_overflow */
328 bfd_elf_generic_reloc, /* special_function */
329 "R_FRV_FUNCDESC_GOTOFF12", /* name */
330 FALSE, /* partial_inplace */
331 0xfff, /* src_mask */
332 0xfff, /* dst_mask */
333 FALSE), /* pcrel_offset */
334
335 /* The upper 16 bits of the GOT offset for the address of the
336 canonical descriptor of a function. */
337 HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
338 0, /* rightshift */
339 2, /* size (0 = byte, 1 = short, 2 = long) */
340 16, /* bitsize */
341 FALSE, /* pc_relative */
342 0, /* bitpos */
343 complain_overflow_dont, /* complain_on_overflow */
344 bfd_elf_generic_reloc, /* special_function */
345 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
346 FALSE, /* partial_inplace */
347 0xffff, /* src_mask */
348 0xffff, /* dst_mask */
349 FALSE), /* pcrel_offset */
350
351 /* The lower 16 bits of the GOT offset for the address of the
352 canonical descriptor of a function. */
353 HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
354 0, /* rightshift */
355 2, /* size (0 = byte, 1 = short, 2 = long) */
356 16, /* bitsize */
357 FALSE, /* pc_relative */
358 0, /* bitpos */
359 complain_overflow_dont, /* complain_on_overflow */
360 bfd_elf_generic_reloc, /* special_function */
361 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
362 FALSE, /* partial_inplace */
363 0xffff, /* src_mask */
364 0xffff, /* dst_mask */
365 FALSE), /* pcrel_offset */
366
367 /* A 12-bit signed operand with the GOT offset for the address of
368 the symbol. */
369 HOWTO (R_FRV_GOTOFF12, /* type */
370 0, /* rightshift */
371 2, /* size (0 = byte, 1 = short, 2 = long) */
372 12, /* bitsize */
373 FALSE, /* pc_relative */
374 0, /* bitpos */
375 complain_overflow_signed, /* complain_on_overflow */
376 bfd_elf_generic_reloc, /* special_function */
377 "R_FRV_GOTOFF12", /* name */
378 FALSE, /* partial_inplace */
379 0xfff, /* src_mask */
380 0xfff, /* dst_mask */
381 FALSE), /* pcrel_offset */
382
383 /* The upper 16 bits of the GOT offset for the address of the
384 symbol. */
385 HOWTO (R_FRV_GOTOFFHI, /* type */
386 0, /* rightshift */
387 2, /* size (0 = byte, 1 = short, 2 = long) */
388 16, /* bitsize */
389 FALSE, /* pc_relative */
390 0, /* bitpos */
391 complain_overflow_dont, /* complain_on_overflow */
392 bfd_elf_generic_reloc, /* special_function */
393 "R_FRV_GOTOFFHI", /* name */
394 FALSE, /* partial_inplace */
395 0xffff, /* src_mask */
396 0xffff, /* dst_mask */
397 FALSE), /* pcrel_offset */
398
399 /* The lower 16 bits of the GOT offset for the address of the
400 symbol. */
401 HOWTO (R_FRV_GOTOFFLO, /* type */
402 0, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 16, /* bitsize */
405 FALSE, /* pc_relative */
406 0, /* bitpos */
407 complain_overflow_dont, /* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_FRV_GOTOFFLO", /* name */
410 FALSE, /* partial_inplace */
411 0xffff, /* src_mask */
412 0xffff, /* dst_mask */
413 FALSE), /* pcrel_offset */
414
415 /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
416 a thread-local symbol. If the symbol number is 0, it refers to
417 the module. */
418 HOWTO (R_FRV_GETTLSOFF, /* type */
419 2, /* rightshift */
420 2, /* size (0 = byte, 1 = short, 2 = long) */
421 26, /* bitsize */
422 TRUE, /* pc_relative */
423 0, /* bitpos */
424 complain_overflow_bitfield, /* complain_on_overflow */
425 bfd_elf_generic_reloc, /* special_function */
426 "R_FRV_GETTLSOFF", /* name */
427 FALSE, /* partial_inplace */
428 0x7e03ffff, /* src_mask */
429 0x7e03ffff, /* dst_mask */
430 TRUE), /* pcrel_offset */
431
432 /* A 64-bit TLS descriptor for a symbol. This relocation is only
433 valid as a REL, dynamic relocation. */
434 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
435 0, /* rightshift */
436 2, /* size (0 = byte, 1 = short, 2 = long) */
437 64, /* bitsize */
438 FALSE, /* pc_relative */
439 0, /* bitpos */
440 complain_overflow_bitfield, /* complain_on_overflow */
441 bfd_elf_generic_reloc, /* special_function */
442 "R_FRV_TLSDESC_VALUE", /* name */
443 FALSE, /* partial_inplace */
444 0xffffffff, /* src_mask */
445 0xffffffff, /* dst_mask */
446 FALSE), /* pcrel_offset */
447
448 /* A 12-bit signed operand with the GOT offset for the TLS
449 descriptor of the symbol. */
450 HOWTO (R_FRV_GOTTLSDESC12, /* type */
451 0, /* rightshift */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
453 12, /* bitsize */
454 FALSE, /* pc_relative */
455 0, /* bitpos */
456 complain_overflow_signed, /* complain_on_overflow */
457 bfd_elf_generic_reloc, /* special_function */
458 "R_FRV_GOTTLSDESC12", /* name */
459 FALSE, /* partial_inplace */
460 0xfff, /* src_mask */
461 0xfff, /* dst_mask */
462 FALSE), /* pcrel_offset */
463
464 /* The upper 16 bits of the GOT offset for the TLS descriptor of the
465 symbol. */
466 HOWTO (R_FRV_GOTTLSDESCHI, /* type */
467 0, /* rightshift */
468 2, /* size (0 = byte, 1 = short, 2 = long) */
469 16, /* bitsize */
470 FALSE, /* pc_relative */
471 0, /* bitpos */
472 complain_overflow_dont, /* complain_on_overflow */
473 bfd_elf_generic_reloc, /* special_function */
474 "R_FRV_GOTTLSDESCHI", /* name */
475 FALSE, /* partial_inplace */
476 0xffff, /* src_mask */
477 0xffff, /* dst_mask */
478 FALSE), /* pcrel_offset */
479
480 /* The lower 16 bits of the GOT offset for the TLS descriptor of the
481 symbol. */
482 HOWTO (R_FRV_GOTTLSDESCLO, /* type */
483 0, /* rightshift */
484 2, /* size (0 = byte, 1 = short, 2 = long) */
485 16, /* bitsize */
486 FALSE, /* pc_relative */
487 0, /* bitpos */
488 complain_overflow_dont, /* complain_on_overflow */
489 bfd_elf_generic_reloc, /* special_function */
490 "R_FRV_GOTTLSDESCLO", /* name */
491 FALSE, /* partial_inplace */
492 0xffff, /* src_mask */
493 0xffff, /* dst_mask */
494 FALSE), /* pcrel_offset */
495
496 /* A 12-bit signed operand with the offset from the module base
497 address to the thread-local symbol address. */
498 HOWTO (R_FRV_TLSMOFF12, /* type */
499 0, /* rightshift */
500 2, /* size (0 = byte, 1 = short, 2 = long) */
501 12, /* bitsize */
502 FALSE, /* pc_relative */
503 0, /* bitpos */
504 complain_overflow_signed, /* complain_on_overflow */
505 bfd_elf_generic_reloc, /* special_function */
506 "R_FRV_TLSMOFF12", /* name */
507 FALSE, /* partial_inplace */
508 0xfff, /* src_mask */
509 0xfff, /* dst_mask */
510 FALSE), /* pcrel_offset */
511
512 /* The upper 16 bits of the offset from the module base address to
513 the thread-local symbol address. */
514 HOWTO (R_FRV_TLSMOFFHI, /* type */
515 0, /* rightshift */
516 2, /* size (0 = byte, 1 = short, 2 = long) */
517 16, /* bitsize */
518 FALSE, /* pc_relative */
519 0, /* bitpos */
520 complain_overflow_dont, /* complain_on_overflow */
521 bfd_elf_generic_reloc, /* special_function */
522 "R_FRV_TLSMOFFHI", /* name */
523 FALSE, /* partial_inplace */
524 0xffff, /* src_mask */
525 0xffff, /* dst_mask */
526 FALSE), /* pcrel_offset */
527
528 /* The lower 16 bits of the offset from the module base address to
529 the thread-local symbol address. */
530 HOWTO (R_FRV_TLSMOFFLO, /* type */
531 0, /* rightshift */
532 2, /* size (0 = byte, 1 = short, 2 = long) */
533 16, /* bitsize */
534 FALSE, /* pc_relative */
535 0, /* bitpos */
536 complain_overflow_dont, /* complain_on_overflow */
537 bfd_elf_generic_reloc, /* special_function */
538 "R_FRV_TLSMOFFLO", /* name */
539 FALSE, /* partial_inplace */
540 0xffff, /* src_mask */
541 0xffff, /* dst_mask */
542 FALSE), /* pcrel_offset */
543
544 /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
545 for a symbol. */
546 HOWTO (R_FRV_GOTTLSOFF12, /* type */
547 0, /* rightshift */
548 2, /* size (0 = byte, 1 = short, 2 = long) */
549 12, /* bitsize */
550 FALSE, /* pc_relative */
551 0, /* bitpos */
552 complain_overflow_signed, /* complain_on_overflow */
553 bfd_elf_generic_reloc, /* special_function */
554 "R_FRV_GOTTLSOFF12", /* name */
555 FALSE, /* partial_inplace */
556 0xfff, /* src_mask */
557 0xfff, /* dst_mask */
558 FALSE), /* pcrel_offset */
559
560 /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
561 symbol. */
562 HOWTO (R_FRV_GOTTLSOFFHI, /* type */
563 0, /* rightshift */
564 2, /* size (0 = byte, 1 = short, 2 = long) */
565 16, /* bitsize */
566 FALSE, /* pc_relative */
567 0, /* bitpos */
568 complain_overflow_dont, /* complain_on_overflow */
569 bfd_elf_generic_reloc, /* special_function */
570 "R_FRV_GOTTLSOFFHI", /* name */
571 FALSE, /* partial_inplace */
572 0xffff, /* src_mask */
573 0xffff, /* dst_mask */
574 FALSE), /* pcrel_offset */
575
576 /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
577 symbol. */
578 HOWTO (R_FRV_GOTTLSOFFLO, /* type */
579 0, /* rightshift */
580 2, /* size (0 = byte, 1 = short, 2 = long) */
581 16, /* bitsize */
582 FALSE, /* pc_relative */
583 0, /* bitpos */
584 complain_overflow_dont, /* complain_on_overflow */
585 bfd_elf_generic_reloc, /* special_function */
586 "R_FRV_GOTTLSOFFLO", /* name */
587 FALSE, /* partial_inplace */
588 0xffff, /* src_mask */
589 0xffff, /* dst_mask */
590 FALSE), /* pcrel_offset */
591
592 /* The 32-bit offset from the thread pointer (not the module base
593 address) to a thread-local symbol. */
594 HOWTO (R_FRV_TLSOFF, /* type */
595 0, /* rightshift */
596 2, /* size (0 = byte, 1 = short, 2 = long) */
597 32, /* bitsize */
598 FALSE, /* pc_relative */
599 0, /* bitpos */
600 complain_overflow_dont, /* complain_on_overflow */
601 bfd_elf_generic_reloc, /* special_function */
602 "R_FRV_TLSOFF", /* name */
603 FALSE, /* partial_inplace */
604 0xffffffff, /* src_mask */
605 0xffffffff, /* dst_mask */
606 FALSE), /* pcrel_offset */
607
608 /* An annotation for linker relaxation, that denotes the
609 symbol+addend whose TLS descriptor is referenced by the sum of
610 the two input registers of an ldd instruction. */
611 HOWTO (R_FRV_TLSDESC_RELAX, /* type */
612 0, /* rightshift */
613 2, /* size (0 = byte, 1 = short, 2 = long) */
614 0, /* bitsize */
615 FALSE, /* pc_relative */
616 0, /* bitpos */
617 complain_overflow_dont, /* complain_on_overflow */
618 bfd_elf_generic_reloc, /* special_function */
619 "R_FRV_TLSDESC_RELAX", /* name */
620 FALSE, /* partial_inplace */
621 0, /* src_mask */
622 0, /* dst_mask */
623 FALSE), /* pcrel_offset */
624
625 /* An annotation for linker relaxation, that denotes the
626 symbol+addend whose TLS resolver entry point is given by the sum
627 of the two register operands of an calll instruction. */
628 HOWTO (R_FRV_GETTLSOFF_RELAX, /* type */
629 0, /* rightshift */
630 2, /* size (0 = byte, 1 = short, 2 = long) */
631 0, /* bitsize */
632 FALSE, /* pc_relative */
633 0, /* bitpos */
634 complain_overflow_dont, /* complain_on_overflow */
635 bfd_elf_generic_reloc, /* special_function */
636 "R_FRV_GETTLSOFF_RELAX", /* name */
637 FALSE, /* partial_inplace */
638 0, /* src_mask */
639 0, /* dst_mask */
640 FALSE), /* pcrel_offset */
641
642 /* An annotation for linker relaxation, that denotes the
643 symbol+addend whose TLS offset GOT entry is given by the sum of
644 the two input registers of an ld instruction. */
645 HOWTO (R_FRV_TLSOFF_RELAX, /* type */
646 0, /* rightshift */
647 2, /* size (0 = byte, 1 = short, 2 = long) */
648 0, /* bitsize */
649 FALSE, /* pc_relative */
650 0, /* bitpos */
651 complain_overflow_bitfield, /* complain_on_overflow */
652 bfd_elf_generic_reloc, /* special_function */
653 "R_FRV_TLSOFF_RELAX", /* name */
654 FALSE, /* partial_inplace */
655 0, /* src_mask */
656 0, /* dst_mask */
657 FALSE), /* pcrel_offset */
658
659 /* A 32-bit offset from the module base address to
660 the thread-local symbol address. */
661 HOWTO (R_FRV_TLSMOFF, /* type */
662 0, /* rightshift */
663 2, /* size (0 = byte, 1 = short, 2 = long) */
664 32, /* bitsize */
665 FALSE, /* pc_relative */
666 0, /* bitpos */
667 complain_overflow_dont, /* complain_on_overflow */
668 bfd_elf_generic_reloc, /* special_function */
669 "R_FRV_TLSMOFF", /* name */
670 FALSE, /* partial_inplace */
671 0xffffffff, /* src_mask */
672 0xffffffff, /* dst_mask */
673 FALSE), /* pcrel_offset */
674 };
675
676 /* GNU extension to record C++ vtable hierarchy. */
677 static reloc_howto_type elf32_frv_vtinherit_howto =
678 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
679 0, /* rightshift */
680 2, /* size (0 = byte, 1 = short, 2 = long) */
681 0, /* bitsize */
682 FALSE, /* pc_relative */
683 0, /* bitpos */
684 complain_overflow_dont, /* complain_on_overflow */
685 NULL, /* special_function */
686 "R_FRV_GNU_VTINHERIT", /* name */
687 FALSE, /* partial_inplace */
688 0, /* src_mask */
689 0, /* dst_mask */
690 FALSE); /* pcrel_offset */
691
692 /* GNU extension to record C++ vtable member usage. */
693 static reloc_howto_type elf32_frv_vtentry_howto =
694 HOWTO (R_FRV_GNU_VTENTRY, /* type */
695 0, /* rightshift */
696 2, /* size (0 = byte, 1 = short, 2 = long) */
697 0, /* bitsize */
698 FALSE, /* pc_relative */
699 0, /* bitpos */
700 complain_overflow_dont, /* complain_on_overflow */
701 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
702 "R_FRV_GNU_VTENTRY", /* name */
703 FALSE, /* partial_inplace */
704 0, /* src_mask */
705 0, /* dst_mask */
706 FALSE); /* pcrel_offset */
707
708 /* The following 3 relocations are REL. The only difference to the
709 entries in the table above are that partial_inplace is TRUE. */
710 static reloc_howto_type elf32_frv_rel_32_howto =
711 HOWTO (R_FRV_32, /* type */
712 0, /* rightshift */
713 2, /* size (0 = byte, 1 = short, 2 = long) */
714 32, /* bitsize */
715 FALSE, /* pc_relative */
716 0, /* bitpos */
717 complain_overflow_bitfield, /* complain_on_overflow */
718 bfd_elf_generic_reloc, /* special_function */
719 "R_FRV_32", /* name */
720 TRUE, /* partial_inplace */
721 0xffffffff, /* src_mask */
722 0xffffffff, /* dst_mask */
723 FALSE); /* pcrel_offset */
724
725 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
726 HOWTO (R_FRV_FUNCDESC, /* type */
727 0, /* rightshift */
728 2, /* size (0 = byte, 1 = short, 2 = long) */
729 32, /* bitsize */
730 FALSE, /* pc_relative */
731 0, /* bitpos */
732 complain_overflow_bitfield, /* complain_on_overflow */
733 bfd_elf_generic_reloc, /* special_function */
734 "R_FRV_FUNCDESC", /* name */
735 TRUE, /* partial_inplace */
736 0xffffffff, /* src_mask */
737 0xffffffff, /* dst_mask */
738 FALSE); /* pcrel_offset */
739
740 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
741 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
742 0, /* rightshift */
743 2, /* size (0 = byte, 1 = short, 2 = long) */
744 64, /* bitsize */
745 FALSE, /* pc_relative */
746 0, /* bitpos */
747 complain_overflow_bitfield, /* complain_on_overflow */
748 bfd_elf_generic_reloc, /* special_function */
749 "R_FRV_FUNCDESC_VALUE", /* name */
750 TRUE, /* partial_inplace */
751 0xffffffff, /* src_mask */
752 0xffffffff, /* dst_mask */
753 FALSE); /* pcrel_offset */
754
755 static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
756 /* A 64-bit TLS descriptor for a symbol. The first word resolves to
757 an entry point, and the second resolves to a special argument.
758 If the symbol turns out to be in static TLS, the entry point is a
759 return instruction, and the special argument is the TLS offset
760 for the symbol. If it's in dynamic TLS, the entry point is a TLS
761 offset resolver, and the special argument is a pointer to a data
762 structure allocated by the dynamic loader, containing the GOT
763 address for the offset resolver, the module id, the offset within
764 the module, and anything else the TLS offset resolver might need
765 to determine the TLS offset for the symbol in the running
766 thread. */
767 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
768 0, /* rightshift */
769 2, /* size (0 = byte, 1 = short, 2 = long) */
770 64, /* bitsize */
771 FALSE, /* pc_relative */
772 0, /* bitpos */
773 complain_overflow_bitfield, /* complain_on_overflow */
774 bfd_elf_generic_reloc, /* special_function */
775 "R_FRV_TLSDESC_VALUE", /* name */
776 TRUE, /* partial_inplace */
777 0xffffffff, /* src_mask */
778 0xffffffff, /* dst_mask */
779 FALSE); /* pcrel_offset */
780
781 static reloc_howto_type elf32_frv_rel_tlsoff_howto =
782 /* The 32-bit offset from the thread pointer (not the module base
783 address) to a thread-local symbol. */
784 HOWTO (R_FRV_TLSOFF, /* type */
785 0, /* rightshift */
786 2, /* size (0 = byte, 1 = short, 2 = long) */
787 32, /* bitsize */
788 FALSE, /* pc_relative */
789 0, /* bitpos */
790 complain_overflow_bitfield, /* complain_on_overflow */
791 bfd_elf_generic_reloc, /* special_function */
792 "R_FRV_TLSOFF", /* name */
793 TRUE, /* partial_inplace */
794 0xffffffff, /* src_mask */
795 0xffffffff, /* dst_mask */
796 FALSE); /* pcrel_offset */
797
798
799 \f
800 extern const bfd_target frv_elf32_fdpic_vec;
801 #define IS_FDPIC(bfd) ((bfd)->xvec == &frv_elf32_fdpic_vec)
802
803 /* An extension of the elf hash table data structure, containing some
804 additional FRV-specific data. */
805 struct frvfdpic_elf_link_hash_table
806 {
807 struct elf_link_hash_table elf;
808
809 /* A pointer to the .rofixup section. */
810 asection *sgotfixup;
811 /* GOT base offset. */
812 bfd_vma got0;
813 /* Location of the first non-lazy PLT entry, i.e., the number of
814 bytes taken by lazy PLT entries. If locally-bound TLS
815 descriptors require a ret instruction, it will be placed at this
816 offset. */
817 bfd_vma plt0;
818 /* A hash table holding information about which symbols were
819 referenced with which PIC-related relocations. */
820 struct htab *relocs_info;
821 /* Summary reloc information collected by
822 _frvfdpic_count_got_plt_entries. */
823 struct _frvfdpic_dynamic_got_info *g;
824 };
825
826 /* Get the FRV ELF linker hash table from a link_info structure. */
827
828 #define frvfdpic_hash_table(p) \
829 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
830 == FRV_ELF_DATA ? ((struct frvfdpic_elf_link_hash_table *) ((p)->hash)) : NULL)
831
832 #define frvfdpic_got_section(info) \
833 (frvfdpic_hash_table (info)->elf.sgot)
834 #define frvfdpic_gotrel_section(info) \
835 (frvfdpic_hash_table (info)->elf.srelgot)
836 #define frvfdpic_gotfixup_section(info) \
837 (frvfdpic_hash_table (info)->sgotfixup)
838 #define frvfdpic_plt_section(info) \
839 (frvfdpic_hash_table (info)->elf.splt)
840 #define frvfdpic_pltrel_section(info) \
841 (frvfdpic_hash_table (info)->elf.srelplt)
842 #define frvfdpic_relocs_info(info) \
843 (frvfdpic_hash_table (info)->relocs_info)
844 #define frvfdpic_got_initial_offset(info) \
845 (frvfdpic_hash_table (info)->got0)
846 #define frvfdpic_plt_initial_offset(info) \
847 (frvfdpic_hash_table (info)->plt0)
848 #define frvfdpic_dynamic_got_plt_info(info) \
849 (frvfdpic_hash_table (info)->g)
850
851 /* Currently it's the same, but if some day we have a reason to change
852 it, we'd better be using a different macro.
853
854 FIXME: if there's any TLS PLT entry that uses local-exec or
855 initial-exec models, we could use the ret at the end of any of them
856 instead of adding one more. */
857 #define frvfdpic_plt_tls_ret_offset(info) \
858 (frvfdpic_plt_initial_offset (info))
859
860 /* The name of the dynamic interpreter. This is put in the .interp
861 section. */
862
863 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
864
865 #define DEFAULT_STACK_SIZE 0x20000
866
867 /* This structure is used to collect the number of entries present in
868 each addressable range of the got. */
869 struct _frvfdpic_dynamic_got_info
870 {
871 /* Several bits of information about the current link. */
872 struct bfd_link_info *info;
873 /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
874 ranges. */
875 bfd_vma got12, gotlos, gothilo;
876 /* Total GOT size needed for function descriptor entries within the 12-,
877 16- or 32-bit ranges. */
878 bfd_vma fd12, fdlos, fdhilo;
879 /* Total GOT size needed by function descriptor entries referenced
880 in PLT entries, that would be profitable to place in offsets
881 close to the PIC register. */
882 bfd_vma fdplt;
883 /* Total PLT size needed by lazy PLT entries. */
884 bfd_vma lzplt;
885 /* Total GOT size needed for TLS descriptor entries within the 12-,
886 16- or 32-bit ranges. */
887 bfd_vma tlsd12, tlsdlos, tlsdhilo;
888 /* Total GOT size needed by TLS descriptors referenced in PLT
889 entries, that would be profitable to place in offers close to the
890 PIC register. */
891 bfd_vma tlsdplt;
892 /* Total PLT size needed by TLS lazy PLT entries. */
893 bfd_vma tlslzplt;
894 /* Number of relocations carried over from input object files. */
895 unsigned long relocs;
896 /* Number of fixups introduced by relocations in input object files. */
897 unsigned long fixups;
898 /* The number of fixups that reference the ret instruction added to
899 the PLT for locally-resolved TLS descriptors. */
900 unsigned long tls_ret_refs;
901 };
902
903 /* This structure is used to assign offsets to got entries, function
904 descriptors, plt entries and lazy plt entries. */
905
906 struct _frvfdpic_dynamic_got_plt_info
907 {
908 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
909 struct _frvfdpic_dynamic_got_info g;
910
911 /* For each addressable range, we record a MAX (positive) and MIN
912 (negative) value. CUR is used to assign got entries, and it's
913 incremented from an initial positive value to MAX, then from MIN
914 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
915 assign function descriptors, and it's decreased from an initial
916 non-positive value to MIN, then from MAX down to CUR (unless CUR
917 wraps around first). All of MIN, MAX, CUR and FDCUR always point
918 to even words. ODD, if non-zero, indicates an odd word to be
919 used for the next got entry, otherwise CUR is used and
920 incremented by a pair of words, wrapping around when it reaches
921 MAX. FDCUR is decremented (and wrapped) before the next function
922 descriptor is chosen. FDPLT indicates the number of remaining
923 slots that can be used for function descriptors used only by PLT
924 entries.
925
926 TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
927 starts as MAX, and grows up to TMAX, then wraps around to TMIN
928 and grows up to MIN. TLSDPLT indicates the number of remaining
929 slots that can be used for TLS descriptors used only by TLS PLT
930 entries. */
931 struct _frvfdpic_dynamic_got_alloc_data
932 {
933 bfd_signed_vma max, cur, odd, fdcur, min;
934 bfd_signed_vma tmax, tcur, tmin;
935 bfd_vma fdplt, tlsdplt;
936 } got12, gotlos, gothilo;
937 };
938
939 /* Create an FRV ELF linker hash table. */
940
941 static struct bfd_link_hash_table *
942 frvfdpic_elf_link_hash_table_create (bfd *abfd)
943 {
944 struct frvfdpic_elf_link_hash_table *ret;
945 size_t amt = sizeof (struct frvfdpic_elf_link_hash_table);
946
947 ret = bfd_zmalloc (amt);
948 if (ret == NULL)
949 return NULL;
950
951 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
952 _bfd_elf_link_hash_newfunc,
953 sizeof (struct elf_link_hash_entry),
954 FRV_ELF_DATA))
955 {
956 free (ret);
957 return NULL;
958 }
959
960 return &ret->elf.root;
961 }
962
963 /* Decide whether a reference to a symbol can be resolved locally or
964 not. If the symbol is protected, we want the local address, but
965 its function descriptor must be assigned by the dynamic linker. */
966 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
967 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
968 || ! elf_hash_table (INFO)->dynamic_sections_created)
969 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
970 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
971
972 /* This structure collects information on what kind of GOT, PLT or
973 function descriptors are required by relocations that reference a
974 certain symbol. */
975 struct frvfdpic_relocs_info
976 {
977 /* The index of the symbol, as stored in the relocation r_info, if
978 we have a local symbol; -1 otherwise. */
979 long symndx;
980 union
981 {
982 /* The input bfd in which the symbol is defined, if it's a local
983 symbol. */
984 bfd *abfd;
985 /* If symndx == -1, the hash table entry corresponding to a global
986 symbol (even if it turns out to bind locally, in which case it
987 should ideally be replaced with section's symndx + addend). */
988 struct elf_link_hash_entry *h;
989 } d;
990 /* The addend of the relocation that references the symbol. */
991 bfd_vma addend;
992
993 /* The fields above are used to identify an entry. The fields below
994 contain information on how an entry is used and, later on, which
995 locations it was assigned. */
996 /* The following 3 fields record whether the symbol+addend above was
997 ever referenced with a GOT relocation. The 12 suffix indicates a
998 GOT12 relocation; los is used for GOTLO relocations that are not
999 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1000 pairs. */
1001 unsigned got12:1;
1002 unsigned gotlos:1;
1003 unsigned gothilo:1;
1004 /* Whether a FUNCDESC relocation references symbol+addend. */
1005 unsigned fd:1;
1006 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1007 unsigned fdgot12:1;
1008 unsigned fdgotlos:1;
1009 unsigned fdgothilo:1;
1010 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1011 unsigned fdgoff12:1;
1012 unsigned fdgofflos:1;
1013 unsigned fdgoffhilo:1;
1014 /* Whether a GETTLSOFF relocation references symbol+addend. */
1015 unsigned tlsplt:1;
1016 /* FIXME: we should probably add tlspltdesc, tlspltoff and
1017 tlspltimm, to tell what kind of TLS PLT entry we're generating.
1018 We might instead just pre-compute flags telling whether the
1019 object is suitable for local exec, initial exec or general
1020 dynamic addressing, and use that all over the place. We could
1021 also try to do a better job of merging TLSOFF and TLSDESC entries
1022 in main executables, but perhaps we can get rid of TLSDESC
1023 entirely in them instead. */
1024 /* Whether a GOTTLSDESC relocation references symbol+addend. */
1025 unsigned tlsdesc12:1;
1026 unsigned tlsdesclos:1;
1027 unsigned tlsdeschilo:1;
1028 /* Whether a GOTTLSOFF relocation references symbol+addend. */
1029 unsigned tlsoff12:1;
1030 unsigned tlsofflos:1;
1031 unsigned tlsoffhilo:1;
1032 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1033 GOTOFFHI relocations. The addend doesn't really matter, since we
1034 envision that this will only be used to check whether the symbol
1035 is mapped to the same segment as the got. */
1036 unsigned gotoff:1;
1037 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1038 unsigned call:1;
1039 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1040 relocation. */
1041 unsigned sym:1;
1042 /* Whether we need a PLT entry for a symbol. Should be implied by
1043 something like:
1044 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
1045 unsigned plt:1;
1046 /* Whether a function descriptor should be created in this link unit
1047 for symbol+addend. Should be implied by something like:
1048 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1049 || ((fd || fdgot12 || fdgotlos || fdgothilo)
1050 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
1051 unsigned privfd:1;
1052 /* Whether a lazy PLT entry is needed for this symbol+addend.
1053 Should be implied by something like:
1054 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1055 && ! (info->flags & DF_BIND_NOW)) */
1056 unsigned lazyplt:1;
1057 /* Whether we've already emitted GOT relocations and PLT entries as
1058 needed for this symbol. */
1059 unsigned done:1;
1060
1061 /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1062 R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1063 symbol+addend. */
1064 unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1065
1066 /* The number of .rofixups entries and dynamic relocations allocated
1067 for this symbol, minus any that might have already been used. */
1068 unsigned fixups, dynrelocs;
1069
1070 /* The offsets of the GOT entries assigned to symbol+addend, to the
1071 function descriptor's address, and to a function descriptor,
1072 respectively. Should be zero if unassigned. The offsets are
1073 counted from the value that will be assigned to the PIC register,
1074 not from the beginning of the .got section. */
1075 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1076 /* The offsets of the PLT entries assigned to symbol+addend,
1077 non-lazy and lazy, respectively. If unassigned, should be
1078 (bfd_vma)-1. */
1079 bfd_vma plt_entry, lzplt_entry;
1080 /* The offsets of the GOT entries for TLS offset and TLS descriptor. */
1081 bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1082 /* The offset of the TLS offset PLT entry. */
1083 bfd_vma tlsplt_entry;
1084 };
1085
1086 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
1087 static hashval_t
1088 frvfdpic_relocs_info_hash (const void *entry_)
1089 {
1090 const struct frvfdpic_relocs_info *entry = entry_;
1091
1092 return (entry->symndx == -1
1093 ? (long) entry->d.h->root.root.hash
1094 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1095 }
1096
1097 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1098 identical. */
1099 static int
1100 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1101 {
1102 const struct frvfdpic_relocs_info *e1 = entry1;
1103 const struct frvfdpic_relocs_info *e2 = entry2;
1104
1105 return e1->symndx == e2->symndx && e1->addend == e2->addend
1106 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1107 }
1108
1109 /* Find or create an entry in a hash table HT that matches the key
1110 fields of the given ENTRY. If it's not found, memory for a new
1111 entry is allocated in ABFD's obstack. */
1112 static struct frvfdpic_relocs_info *
1113 frvfdpic_relocs_info_find (struct htab *ht,
1114 bfd *abfd,
1115 const struct frvfdpic_relocs_info *entry,
1116 enum insert_option insert)
1117 {
1118 struct frvfdpic_relocs_info **loc =
1119 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1120
1121 if (! loc)
1122 return NULL;
1123
1124 if (*loc)
1125 return *loc;
1126
1127 *loc = bfd_zalloc (abfd, sizeof (**loc));
1128
1129 if (! *loc)
1130 return *loc;
1131
1132 (*loc)->symndx = entry->symndx;
1133 (*loc)->d = entry->d;
1134 (*loc)->addend = entry->addend;
1135 (*loc)->plt_entry = (bfd_vma)-1;
1136 (*loc)->lzplt_entry = (bfd_vma)-1;
1137 (*loc)->tlsplt_entry = (bfd_vma)-1;
1138
1139 return *loc;
1140 }
1141
1142 /* Obtain the address of the entry in HT associated with H's symbol +
1143 addend, creating a new entry if none existed. ABFD is only used
1144 for memory allocation purposes. */
1145 inline static struct frvfdpic_relocs_info *
1146 frvfdpic_relocs_info_for_global (struct htab *ht,
1147 bfd *abfd,
1148 struct elf_link_hash_entry *h,
1149 bfd_vma addend,
1150 enum insert_option insert)
1151 {
1152 struct frvfdpic_relocs_info entry;
1153
1154 entry.symndx = -1;
1155 entry.d.h = h;
1156 entry.addend = addend;
1157
1158 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1159 }
1160
1161 /* Obtain the address of the entry in HT associated with the SYMNDXth
1162 local symbol of the input bfd ABFD, plus the addend, creating a new
1163 entry if none existed. */
1164 inline static struct frvfdpic_relocs_info *
1165 frvfdpic_relocs_info_for_local (struct htab *ht,
1166 bfd *abfd,
1167 long symndx,
1168 bfd_vma addend,
1169 enum insert_option insert)
1170 {
1171 struct frvfdpic_relocs_info entry;
1172
1173 entry.symndx = symndx;
1174 entry.d.abfd = abfd;
1175 entry.addend = addend;
1176
1177 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1178 }
1179
1180 /* Merge fields set by check_relocs() of two entries that end up being
1181 mapped to the same (presumably global) symbol. */
1182
1183 inline static void
1184 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1185 struct frvfdpic_relocs_info const *e1)
1186 {
1187 e2->got12 |= e1->got12;
1188 e2->gotlos |= e1->gotlos;
1189 e2->gothilo |= e1->gothilo;
1190 e2->fd |= e1->fd;
1191 e2->fdgot12 |= e1->fdgot12;
1192 e2->fdgotlos |= e1->fdgotlos;
1193 e2->fdgothilo |= e1->fdgothilo;
1194 e2->fdgoff12 |= e1->fdgoff12;
1195 e2->fdgofflos |= e1->fdgofflos;
1196 e2->fdgoffhilo |= e1->fdgoffhilo;
1197 e2->tlsplt |= e1->tlsplt;
1198 e2->tlsdesc12 |= e1->tlsdesc12;
1199 e2->tlsdesclos |= e1->tlsdesclos;
1200 e2->tlsdeschilo |= e1->tlsdeschilo;
1201 e2->tlsoff12 |= e1->tlsoff12;
1202 e2->tlsofflos |= e1->tlsofflos;
1203 e2->tlsoffhilo |= e1->tlsoffhilo;
1204 e2->gotoff |= e1->gotoff;
1205 e2->call |= e1->call;
1206 e2->sym |= e1->sym;
1207 }
1208
1209 /* Every block of 65535 lazy PLT entries shares a single call to the
1210 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1211 32767, counting from 0). All other lazy PLT entries branch to it
1212 in a single instruction. */
1213
1214 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1215 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1216
1217 /* Add a dynamic relocation to the SRELOC section. */
1218
1219 inline static bfd_vma
1220 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1221 int reloc_type, long dynindx, bfd_vma addend,
1222 struct frvfdpic_relocs_info *entry)
1223 {
1224 Elf_Internal_Rela outrel;
1225 bfd_vma reloc_offset;
1226
1227 outrel.r_offset = offset;
1228 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1229 outrel.r_addend = addend;
1230
1231 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1232 BFD_ASSERT (reloc_offset < sreloc->size);
1233 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1234 sreloc->contents + reloc_offset);
1235 sreloc->reloc_count++;
1236
1237 /* If the entry's index is zero, this relocation was probably to a
1238 linkonce section that got discarded. We reserved a dynamic
1239 relocation, but it was for another entry than the one we got at
1240 the time of emitting the relocation. Unfortunately there's no
1241 simple way for us to catch this situation, since the relocation
1242 is cleared right before calling relocate_section, at which point
1243 we no longer know what the relocation used to point to. */
1244 if (entry->symndx)
1245 {
1246 BFD_ASSERT (entry->dynrelocs > 0);
1247 entry->dynrelocs--;
1248 }
1249
1250 return reloc_offset;
1251 }
1252
1253 /* Add a fixup to the ROFIXUP section. */
1254
1255 static bfd_vma
1256 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1257 struct frvfdpic_relocs_info *entry)
1258 {
1259 bfd_vma fixup_offset;
1260
1261 if (rofixup->flags & SEC_EXCLUDE)
1262 return -1;
1263
1264 fixup_offset = rofixup->reloc_count * 4;
1265 if (rofixup->contents)
1266 {
1267 BFD_ASSERT (fixup_offset < rofixup->size);
1268 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1269 }
1270 rofixup->reloc_count++;
1271
1272 if (entry && entry->symndx)
1273 {
1274 /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1275 above. */
1276 BFD_ASSERT (entry->fixups > 0);
1277 entry->fixups--;
1278 }
1279
1280 return fixup_offset;
1281 }
1282
1283 /* Find the segment number in which OSEC, and output section, is
1284 located. */
1285
1286 static unsigned
1287 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1288 {
1289 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
1290
1291 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
1292 }
1293
1294 inline static bfd_boolean
1295 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1296 {
1297 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1298
1299 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1300 }
1301
1302 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1303
1304 /* Return the base VMA address which should be subtracted from real addresses
1305 when resolving TLSMOFF relocation.
1306 This is PT_TLS segment p_vaddr, plus the 2048-16 bias. */
1307
1308 static bfd_vma
1309 tls_biased_base (struct bfd_link_info *info)
1310 {
1311 /* If tls_sec is NULL, we should have signalled an error already. */
1312 if (elf_hash_table (info)->tls_sec == NULL)
1313 return FRVFDPIC_TLS_BIAS;
1314 return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1315 }
1316
1317 /* Generate relocations for GOT entries, function descriptors, and
1318 code for PLT and lazy PLT entries. */
1319
1320 inline static bfd_boolean
1321 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1322 bfd *output_bfd,
1323 struct bfd_link_info *info,
1324 asection *sec,
1325 Elf_Internal_Sym *sym,
1326 bfd_vma addend)
1327
1328 {
1329 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1330 int dynindx = -1;
1331
1332 if (entry->done)
1333 return TRUE;
1334 entry->done = 1;
1335
1336 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1337 || entry->tlsoff_entry || entry->tlsdesc_entry)
1338 {
1339 /* If the symbol is dynamic, consider it for dynamic
1340 relocations, otherwise decay to section + offset. */
1341 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1342 dynindx = entry->d.h->dynindx;
1343 else
1344 {
1345 if (sec
1346 && sec->output_section
1347 && ! bfd_is_abs_section (sec->output_section)
1348 && ! bfd_is_und_section (sec->output_section))
1349 dynindx = elf_section_data (sec->output_section)->dynindx;
1350 else
1351 dynindx = 0;
1352 }
1353 }
1354
1355 /* Generate relocation for GOT entry pointing to the symbol. */
1356 if (entry->got_entry)
1357 {
1358 int idx = dynindx;
1359 bfd_vma ad = addend;
1360
1361 /* If the symbol is dynamic but binds locally, use
1362 section+offset. */
1363 if (sec && (entry->symndx != -1
1364 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1365 {
1366 if (entry->symndx == -1)
1367 ad += entry->d.h->root.u.def.value;
1368 else
1369 ad += sym->st_value;
1370 ad += sec->output_offset;
1371 if (sec->output_section && elf_section_data (sec->output_section))
1372 idx = elf_section_data (sec->output_section)->dynindx;
1373 else
1374 idx = 0;
1375 }
1376
1377 /* If we're linking an executable at a fixed address, we can
1378 omit the dynamic relocation as long as the symbol is local to
1379 this module. */
1380 if (bfd_link_pde (info)
1381 && (entry->symndx != -1
1382 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1383 {
1384 if (sec)
1385 ad += sec->output_section->vma;
1386 if (entry->symndx != -1
1387 || entry->d.h->root.type != bfd_link_hash_undefweak)
1388 _frvfdpic_add_rofixup (output_bfd,
1389 frvfdpic_gotfixup_section (info),
1390 frvfdpic_got_section (info)->output_section
1391 ->vma
1392 + frvfdpic_got_section (info)->output_offset
1393 + frvfdpic_got_initial_offset (info)
1394 + entry->got_entry, entry);
1395 }
1396 else
1397 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1398 _bfd_elf_section_offset
1399 (output_bfd, info,
1400 frvfdpic_got_section (info),
1401 frvfdpic_got_initial_offset (info)
1402 + entry->got_entry)
1403 + frvfdpic_got_section (info)
1404 ->output_section->vma
1405 + frvfdpic_got_section (info)->output_offset,
1406 R_FRV_32, idx, ad, entry);
1407
1408 bfd_put_32 (output_bfd, ad,
1409 frvfdpic_got_section (info)->contents
1410 + frvfdpic_got_initial_offset (info)
1411 + entry->got_entry);
1412 }
1413
1414 /* Generate relocation for GOT entry pointing to a canonical
1415 function descriptor. */
1416 if (entry->fdgot_entry)
1417 {
1418 int reloc, idx;
1419 bfd_vma ad = 0;
1420
1421 if (! (entry->symndx == -1
1422 && entry->d.h->root.type == bfd_link_hash_undefweak
1423 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1424 {
1425 /* If the symbol is dynamic and there may be dynamic symbol
1426 resolution because we are, or are linked with, a shared
1427 library, emit a FUNCDESC relocation such that the dynamic
1428 linker will allocate the function descriptor. If the
1429 symbol needs a non-local function descriptor but binds
1430 locally (e.g., its visibility is protected, emit a
1431 dynamic relocation decayed to section+offset. */
1432 if (entry->symndx == -1
1433 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1434 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1435 && !bfd_link_pde (info))
1436 {
1437 reloc = R_FRV_FUNCDESC;
1438 idx = elf_section_data (entry->d.h->root.u.def.section
1439 ->output_section)->dynindx;
1440 ad = entry->d.h->root.u.def.section->output_offset
1441 + entry->d.h->root.u.def.value;
1442 }
1443 else if (entry->symndx == -1
1444 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1445 {
1446 reloc = R_FRV_FUNCDESC;
1447 idx = dynindx;
1448 ad = addend;
1449 if (ad)
1450 {
1451 (*info->callbacks->reloc_dangerous)
1452 (info, _("relocation requires zero addend"),
1453 elf_hash_table (info)->dynobj,
1454 frvfdpic_got_section (info),
1455 entry->fdgot_entry);
1456 return FALSE;
1457 }
1458 }
1459 else
1460 {
1461 /* Otherwise, we know we have a private function descriptor,
1462 so reference it directly. */
1463 if (elf_hash_table (info)->dynamic_sections_created)
1464 BFD_ASSERT (entry->privfd);
1465 reloc = R_FRV_32;
1466 idx = elf_section_data (frvfdpic_got_section (info)
1467 ->output_section)->dynindx;
1468 ad = frvfdpic_got_section (info)->output_offset
1469 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1470 }
1471
1472 /* If there is room for dynamic symbol resolution, emit the
1473 dynamic relocation. However, if we're linking an
1474 executable at a fixed location, we won't have emitted a
1475 dynamic symbol entry for the got section, so idx will be
1476 zero, which means we can and should compute the address
1477 of the private descriptor ourselves. */
1478 if (bfd_link_pde (info)
1479 && (entry->symndx != -1
1480 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1481 {
1482 ad += frvfdpic_got_section (info)->output_section->vma;
1483 _frvfdpic_add_rofixup (output_bfd,
1484 frvfdpic_gotfixup_section (info),
1485 frvfdpic_got_section (info)
1486 ->output_section->vma
1487 + frvfdpic_got_section (info)
1488 ->output_offset
1489 + frvfdpic_got_initial_offset (info)
1490 + entry->fdgot_entry, entry);
1491 }
1492 else
1493 _frvfdpic_add_dyn_reloc (output_bfd,
1494 frvfdpic_gotrel_section (info),
1495 _bfd_elf_section_offset
1496 (output_bfd, info,
1497 frvfdpic_got_section (info),
1498 frvfdpic_got_initial_offset (info)
1499 + entry->fdgot_entry)
1500 + frvfdpic_got_section (info)
1501 ->output_section->vma
1502 + frvfdpic_got_section (info)
1503 ->output_offset,
1504 reloc, idx, ad, entry);
1505 }
1506
1507 bfd_put_32 (output_bfd, ad,
1508 frvfdpic_got_section (info)->contents
1509 + frvfdpic_got_initial_offset (info)
1510 + entry->fdgot_entry);
1511 }
1512
1513 /* Generate relocation to fill in a private function descriptor in
1514 the GOT. */
1515 if (entry->fd_entry)
1516 {
1517 int idx = dynindx;
1518 bfd_vma ad = addend;
1519 bfd_vma ofst;
1520 long lowword, highword;
1521
1522 /* If the symbol is dynamic but binds locally, use
1523 section+offset. */
1524 if (sec && (entry->symndx != -1
1525 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1526 {
1527 if (entry->symndx == -1)
1528 ad += entry->d.h->root.u.def.value;
1529 else
1530 ad += sym->st_value;
1531 ad += sec->output_offset;
1532 if (sec->output_section && elf_section_data (sec->output_section))
1533 idx = elf_section_data (sec->output_section)->dynindx;
1534 else
1535 idx = 0;
1536 }
1537
1538 /* If we're linking an executable at a fixed address, we can
1539 omit the dynamic relocation as long as the symbol is local to
1540 this module. */
1541 if (bfd_link_pde (info)
1542 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1543 {
1544 if (sec)
1545 ad += sec->output_section->vma;
1546 ofst = 0;
1547 if (entry->symndx != -1
1548 || entry->d.h->root.type != bfd_link_hash_undefweak)
1549 {
1550 _frvfdpic_add_rofixup (output_bfd,
1551 frvfdpic_gotfixup_section (info),
1552 frvfdpic_got_section (info)
1553 ->output_section->vma
1554 + frvfdpic_got_section (info)
1555 ->output_offset
1556 + frvfdpic_got_initial_offset (info)
1557 + entry->fd_entry, entry);
1558 _frvfdpic_add_rofixup (output_bfd,
1559 frvfdpic_gotfixup_section (info),
1560 frvfdpic_got_section (info)
1561 ->output_section->vma
1562 + frvfdpic_got_section (info)
1563 ->output_offset
1564 + frvfdpic_got_initial_offset (info)
1565 + entry->fd_entry + 4, entry);
1566 }
1567 }
1568 else
1569 {
1570 ofst =
1571 _frvfdpic_add_dyn_reloc (output_bfd,
1572 entry->lazyplt
1573 ? frvfdpic_pltrel_section (info)
1574 : frvfdpic_gotrel_section (info),
1575 _bfd_elf_section_offset
1576 (output_bfd, info,
1577 frvfdpic_got_section (info),
1578 frvfdpic_got_initial_offset (info)
1579 + entry->fd_entry)
1580 + frvfdpic_got_section (info)
1581 ->output_section->vma
1582 + frvfdpic_got_section (info)
1583 ->output_offset,
1584 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1585 }
1586
1587 /* If we've omitted the dynamic relocation, just emit the fixed
1588 addresses of the symbol and of the local GOT base offset. */
1589 if (bfd_link_pde (info)
1590 && sec
1591 && sec->output_section)
1592 {
1593 lowword = ad;
1594 highword = frvfdpic_got_section (info)->output_section->vma
1595 + frvfdpic_got_section (info)->output_offset
1596 + frvfdpic_got_initial_offset (info);
1597 }
1598 else if (entry->lazyplt)
1599 {
1600 if (ad)
1601 {
1602 (*info->callbacks->reloc_dangerous)
1603 (info, _("relocation requires zero addend"),
1604 elf_hash_table (info)->dynobj,
1605 frvfdpic_got_section (info),
1606 entry->fd_entry);
1607 return FALSE;
1608 }
1609
1610 fd_lazy_rel_offset = ofst;
1611
1612 /* A function descriptor used for lazy or local resolving is
1613 initialized such that its high word contains the output
1614 section index in which the PLT entries are located, and
1615 the low word contains the address of the lazy PLT entry
1616 entry point, that must be within the memory region
1617 assigned to that section. */
1618 lowword = entry->lzplt_entry + 4
1619 + frvfdpic_plt_section (info)->output_offset
1620 + frvfdpic_plt_section (info)->output_section->vma;
1621 highword = _frvfdpic_osec_to_segment
1622 (output_bfd, frvfdpic_plt_section (info)->output_section);
1623 }
1624 else
1625 {
1626 /* A function descriptor for a local function gets the index
1627 of the section. For a non-local function, it's
1628 disregarded. */
1629 lowword = ad;
1630 if (sec == NULL
1631 || (entry->symndx == -1 && entry->d.h->dynindx != -1
1632 && entry->d.h->dynindx == idx))
1633 highword = 0;
1634 else
1635 highword = _frvfdpic_osec_to_segment
1636 (output_bfd, sec->output_section);
1637 }
1638
1639 bfd_put_32 (output_bfd, lowword,
1640 frvfdpic_got_section (info)->contents
1641 + frvfdpic_got_initial_offset (info)
1642 + entry->fd_entry);
1643 bfd_put_32 (output_bfd, highword,
1644 frvfdpic_got_section (info)->contents
1645 + frvfdpic_got_initial_offset (info)
1646 + entry->fd_entry + 4);
1647 }
1648
1649 /* Generate code for the PLT entry. */
1650 if (entry->plt_entry != (bfd_vma) -1)
1651 {
1652 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1653 + entry->plt_entry;
1654
1655 BFD_ASSERT (entry->fd_entry);
1656
1657 /* Figure out what kind of PLT entry we need, depending on the
1658 location of the function descriptor within the GOT. */
1659 if (entry->fd_entry >= -(1 << (12 - 1))
1660 && entry->fd_entry < (1 << (12 - 1)))
1661 {
1662 /* lddi @(gr15, fd_entry), gr14 */
1663 bfd_put_32 (output_bfd,
1664 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1665 plt_code);
1666 plt_code += 4;
1667 }
1668 else
1669 {
1670 if (entry->fd_entry >= -(1 << (16 - 1))
1671 && entry->fd_entry < (1 << (16 - 1)))
1672 {
1673 /* setlos lo(fd_entry), gr14 */
1674 bfd_put_32 (output_bfd,
1675 0x9cfc0000
1676 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1677 plt_code);
1678 plt_code += 4;
1679 }
1680 else
1681 {
1682 /* sethi.p hi(fd_entry), gr14
1683 setlo lo(fd_entry), gr14 */
1684 bfd_put_32 (output_bfd,
1685 0x1cf80000
1686 | ((entry->fd_entry >> 16)
1687 & (((bfd_vma)1 << 16) - 1)),
1688 plt_code);
1689 plt_code += 4;
1690 bfd_put_32 (output_bfd,
1691 0x9cf40000
1692 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1693 plt_code);
1694 plt_code += 4;
1695 }
1696 /* ldd @(gr14,gr15),gr14 */
1697 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1698 plt_code += 4;
1699 }
1700 /* jmpl @(gr14,gr0) */
1701 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1702 }
1703
1704 /* Generate code for the lazy PLT entry. */
1705 if (entry->lzplt_entry != (bfd_vma) -1)
1706 {
1707 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1708 + entry->lzplt_entry;
1709 bfd_vma resolverStub_addr;
1710
1711 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1712 lzplt_code += 4;
1713
1714 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1715 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1716 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1717 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1718
1719 if (entry->lzplt_entry == resolverStub_addr)
1720 {
1721 /* This is a lazy PLT entry that includes a resolver call. */
1722 /* ldd @(gr15,gr0), gr4
1723 jmpl @(gr4,gr0) */
1724 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1725 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1726 }
1727 else
1728 {
1729 /* bra resolverStub */
1730 bfd_put_32 (output_bfd,
1731 0xc01a0000
1732 | (((resolverStub_addr - entry->lzplt_entry)
1733 / 4) & (((bfd_vma)1 << 16) - 1)),
1734 lzplt_code);
1735 }
1736 }
1737
1738 /* Generate relocation for GOT entry holding the TLS offset. */
1739 if (entry->tlsoff_entry)
1740 {
1741 int idx = dynindx;
1742 bfd_vma ad = addend;
1743
1744 if (entry->symndx != -1
1745 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1746 {
1747 /* If the symbol is dynamic but binds locally, use
1748 section+offset. */
1749 if (sec)
1750 {
1751 if (entry->symndx == -1)
1752 ad += entry->d.h->root.u.def.value;
1753 else
1754 ad += sym->st_value;
1755 ad += sec->output_offset;
1756 if (sec->output_section
1757 && elf_section_data (sec->output_section))
1758 idx = elf_section_data (sec->output_section)->dynindx;
1759 else
1760 idx = 0;
1761 }
1762 }
1763
1764 /* *ABS*+addend is special for TLS relocations, use only the
1765 addend. */
1766 if (bfd_link_executable (info)
1767 && idx == 0
1768 && (bfd_is_abs_section (sec)
1769 || bfd_is_und_section (sec)))
1770 ;
1771 /* If we're linking an executable, we can entirely omit the
1772 dynamic relocation if the symbol is local to this module. */
1773 else if (bfd_link_executable (info)
1774 && (entry->symndx != -1
1775 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1776 {
1777 if (sec)
1778 ad += sec->output_section->vma - tls_biased_base (info);
1779 }
1780 else
1781 {
1782 if (idx == 0
1783 && (bfd_is_abs_section (sec)
1784 || bfd_is_und_section (sec)))
1785 {
1786 if (! elf_hash_table (info)->tls_sec)
1787 {
1788 (*info->callbacks->undefined_symbol)
1789 (info, "TLS section", elf_hash_table (info)->dynobj,
1790 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1791 return FALSE;
1792 }
1793 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1794 ad += FRVFDPIC_TLS_BIAS;
1795 }
1796 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1797 _bfd_elf_section_offset
1798 (output_bfd, info,
1799 frvfdpic_got_section (info),
1800 frvfdpic_got_initial_offset (info)
1801 + entry->tlsoff_entry)
1802 + frvfdpic_got_section (info)
1803 ->output_section->vma
1804 + frvfdpic_got_section (info)
1805 ->output_offset,
1806 R_FRV_TLSOFF, idx, ad, entry);
1807 }
1808
1809 bfd_put_32 (output_bfd, ad,
1810 frvfdpic_got_section (info)->contents
1811 + frvfdpic_got_initial_offset (info)
1812 + entry->tlsoff_entry);
1813 }
1814
1815 if (entry->tlsdesc_entry)
1816 {
1817 int idx = dynindx;
1818 bfd_vma ad = addend;
1819
1820 /* If the symbol is dynamic but binds locally, use
1821 section+offset. */
1822 if (sec && (entry->symndx != -1
1823 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1824 {
1825 if (entry->symndx == -1)
1826 ad += entry->d.h->root.u.def.value;
1827 else
1828 ad += sym->st_value;
1829 ad += sec->output_offset;
1830 if (sec->output_section && elf_section_data (sec->output_section))
1831 idx = elf_section_data (sec->output_section)->dynindx;
1832 else
1833 idx = 0;
1834 }
1835
1836 /* If we didn't set up a TLS offset entry, but we're linking an
1837 executable and the symbol binds locally, we can use the
1838 module offset in the TLS descriptor in relaxations. */
1839 if (bfd_link_executable (info) && ! entry->tlsoff_entry)
1840 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1841
1842 if (bfd_link_pde (info)
1843 && ((idx == 0
1844 && (bfd_is_abs_section (sec)
1845 || bfd_is_und_section (sec)))
1846 || entry->symndx != -1
1847 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1848 {
1849 /* *ABS*+addend is special for TLS relocations, use only the
1850 addend for the TLS offset, and take the module id as
1851 0. */
1852 if (idx == 0
1853 && (bfd_is_abs_section (sec)
1854 || bfd_is_und_section (sec)))
1855 ;
1856 /* For other TLS symbols that bind locally, add the section
1857 TLS offset to the addend. */
1858 else if (sec)
1859 ad += sec->output_section->vma - tls_biased_base (info);
1860
1861 bfd_put_32 (output_bfd,
1862 frvfdpic_plt_section (info)->output_section->vma
1863 + frvfdpic_plt_section (info)->output_offset
1864 + frvfdpic_plt_tls_ret_offset (info),
1865 frvfdpic_got_section (info)->contents
1866 + frvfdpic_got_initial_offset (info)
1867 + entry->tlsdesc_entry);
1868
1869 _frvfdpic_add_rofixup (output_bfd,
1870 frvfdpic_gotfixup_section (info),
1871 frvfdpic_got_section (info)
1872 ->output_section->vma
1873 + frvfdpic_got_section (info)
1874 ->output_offset
1875 + frvfdpic_got_initial_offset (info)
1876 + entry->tlsdesc_entry, entry);
1877
1878 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1879
1880 /* We've used one of the reserved fixups, so discount it so
1881 that we can check at the end that we've used them
1882 all. */
1883 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1884
1885 /* While at that, make sure the ret instruction makes to the
1886 right location in the PLT. We could do it only when we
1887 got to 0, but since the check at the end will only print
1888 a warning, make sure we have the ret in place in case the
1889 warning is missed. */
1890 bfd_put_32 (output_bfd, 0xc03a4000,
1891 frvfdpic_plt_section (info)->contents
1892 + frvfdpic_plt_tls_ret_offset (info));
1893 }
1894 else
1895 {
1896 if (idx == 0
1897 && (bfd_is_abs_section (sec)
1898 || bfd_is_und_section (sec)))
1899 {
1900 if (! elf_hash_table (info)->tls_sec)
1901 {
1902 (*info->callbacks->undefined_symbol)
1903 (info, "TLS section", elf_hash_table (info)->dynobj,
1904 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1905 return FALSE;
1906 }
1907 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1908 ad += FRVFDPIC_TLS_BIAS;
1909 }
1910
1911 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1912 _bfd_elf_section_offset
1913 (output_bfd, info,
1914 frvfdpic_got_section (info),
1915 frvfdpic_got_initial_offset (info)
1916 + entry->tlsdesc_entry)
1917 + frvfdpic_got_section (info)
1918 ->output_section->vma
1919 + frvfdpic_got_section (info)
1920 ->output_offset,
1921 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1922
1923 bfd_put_32 (output_bfd, 0,
1924 frvfdpic_got_section (info)->contents
1925 + frvfdpic_got_initial_offset (info)
1926 + entry->tlsdesc_entry);
1927 }
1928
1929 bfd_put_32 (output_bfd, ad,
1930 frvfdpic_got_section (info)->contents
1931 + frvfdpic_got_initial_offset (info)
1932 + entry->tlsdesc_entry + 4);
1933 }
1934
1935 /* Generate code for the get-TLS-offset PLT entry. */
1936 if (entry->tlsplt_entry != (bfd_vma) -1)
1937 {
1938 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1939 + entry->tlsplt_entry;
1940
1941 if (bfd_link_executable (info)
1942 && (entry->symndx != -1
1943 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1944 {
1945 int idx = dynindx;
1946 bfd_vma ad = addend;
1947
1948 /* sec may be NULL when referencing an undefweak symbol
1949 while linking a static executable. */
1950 if (!sec)
1951 {
1952 BFD_ASSERT (entry->symndx == -1
1953 && entry->d.h->root.type == bfd_link_hash_undefweak);
1954 }
1955 else
1956 {
1957 if (entry->symndx == -1)
1958 ad += entry->d.h->root.u.def.value;
1959 else
1960 ad += sym->st_value;
1961 ad += sec->output_offset;
1962 if (sec->output_section
1963 && elf_section_data (sec->output_section))
1964 idx = elf_section_data (sec->output_section)->dynindx;
1965 else
1966 idx = 0;
1967 }
1968
1969 /* *ABS*+addend is special for TLS relocations, use only the
1970 addend for the TLS offset, and take the module id as
1971 0. */
1972 if (idx == 0
1973 && (bfd_is_abs_section (sec)
1974 || bfd_is_und_section (sec)))
1975 ;
1976 /* For other TLS symbols that bind locally, add the section
1977 TLS offset to the addend. */
1978 else if (sec)
1979 ad += sec->output_section->vma - tls_biased_base (info);
1980
1981 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
1982 && (bfd_signed_vma)ad < (1 << (16 - 1)))
1983 {
1984 /* setlos lo(ad), gr9 */
1985 bfd_put_32 (output_bfd,
1986 0x92fc0000
1987 | (ad
1988 & (((bfd_vma)1 << 16) - 1)),
1989 plt_code);
1990 plt_code += 4;
1991 }
1992 else
1993 {
1994 /* sethi.p hi(ad), gr9
1995 setlo lo(ad), gr9 */
1996 bfd_put_32 (output_bfd,
1997 0x12f80000
1998 | ((ad >> 16)
1999 & (((bfd_vma)1 << 16) - 1)),
2000 plt_code);
2001 plt_code += 4;
2002 bfd_put_32 (output_bfd,
2003 0x92f40000
2004 | (ad
2005 & (((bfd_vma)1 << 16) - 1)),
2006 plt_code);
2007 plt_code += 4;
2008 }
2009 /* ret */
2010 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2011 }
2012 else if (entry->tlsoff_entry)
2013 {
2014 /* Figure out what kind of PLT entry we need, depending on the
2015 location of the TLS descriptor within the GOT. */
2016 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2017 && entry->tlsoff_entry < (1 << (12 - 1)))
2018 {
2019 /* ldi @(gr15, tlsoff_entry), gr9 */
2020 bfd_put_32 (output_bfd,
2021 0x92c8f000 | (entry->tlsoff_entry
2022 & ((1 << 12) - 1)),
2023 plt_code);
2024 plt_code += 4;
2025 }
2026 else
2027 {
2028 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2029 && entry->tlsoff_entry < (1 << (16 - 1)))
2030 {
2031 /* setlos lo(tlsoff_entry), gr8 */
2032 bfd_put_32 (output_bfd,
2033 0x90fc0000
2034 | (entry->tlsoff_entry
2035 & (((bfd_vma)1 << 16) - 1)),
2036 plt_code);
2037 plt_code += 4;
2038 }
2039 else
2040 {
2041 /* sethi.p hi(tlsoff_entry), gr8
2042 setlo lo(tlsoff_entry), gr8 */
2043 bfd_put_32 (output_bfd,
2044 0x10f80000
2045 | ((entry->tlsoff_entry >> 16)
2046 & (((bfd_vma)1 << 16) - 1)),
2047 plt_code);
2048 plt_code += 4;
2049 bfd_put_32 (output_bfd,
2050 0x90f40000
2051 | (entry->tlsoff_entry
2052 & (((bfd_vma)1 << 16) - 1)),
2053 plt_code);
2054 plt_code += 4;
2055 }
2056 /* ld @(gr15,gr8),gr9 */
2057 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2058 plt_code += 4;
2059 }
2060 /* ret */
2061 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2062 }
2063 else
2064 {
2065 BFD_ASSERT (entry->tlsdesc_entry);
2066
2067 /* Figure out what kind of PLT entry we need, depending on the
2068 location of the TLS descriptor within the GOT. */
2069 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2070 && entry->tlsdesc_entry < (1 << (12 - 1)))
2071 {
2072 /* lddi @(gr15, tlsdesc_entry), gr8 */
2073 bfd_put_32 (output_bfd,
2074 0x90ccf000 | (entry->tlsdesc_entry
2075 & ((1 << 12) - 1)),
2076 plt_code);
2077 plt_code += 4;
2078 }
2079 else
2080 {
2081 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2082 && entry->tlsdesc_entry < (1 << (16 - 1)))
2083 {
2084 /* setlos lo(tlsdesc_entry), gr8 */
2085 bfd_put_32 (output_bfd,
2086 0x90fc0000
2087 | (entry->tlsdesc_entry
2088 & (((bfd_vma)1 << 16) - 1)),
2089 plt_code);
2090 plt_code += 4;
2091 }
2092 else
2093 {
2094 /* sethi.p hi(tlsdesc_entry), gr8
2095 setlo lo(tlsdesc_entry), gr8 */
2096 bfd_put_32 (output_bfd,
2097 0x10f80000
2098 | ((entry->tlsdesc_entry >> 16)
2099 & (((bfd_vma)1 << 16) - 1)),
2100 plt_code);
2101 plt_code += 4;
2102 bfd_put_32 (output_bfd,
2103 0x90f40000
2104 | (entry->tlsdesc_entry
2105 & (((bfd_vma)1 << 16) - 1)),
2106 plt_code);
2107 plt_code += 4;
2108 }
2109 /* ldd @(gr15,gr8),gr8 */
2110 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2111 plt_code += 4;
2112 }
2113 /* jmpl @(gr8,gr0) */
2114 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2115 }
2116 }
2117
2118 return TRUE;
2119 }
2120
2121 /* Handle an FRV small data reloc. */
2122
2123 static bfd_reloc_status_type
2124 elf32_frv_relocate_gprel12 (struct bfd_link_info *info,
2125 bfd *input_bfd,
2126 asection *input_section,
2127 Elf_Internal_Rela *relocation,
2128 bfd_byte *contents,
2129 bfd_vma value)
2130 {
2131 bfd_vma insn;
2132 bfd_vma gp;
2133 struct bfd_link_hash_entry *h;
2134
2135 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2136
2137 gp = (h->u.def.value
2138 + h->u.def.section->output_section->vma
2139 + h->u.def.section->output_offset);
2140
2141 value -= input_section->output_section->vma;
2142 value -= (gp - input_section->output_section->vma);
2143
2144 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2145
2146 value += relocation->r_addend;
2147
2148 if ((long) value > 0x7ff || (long) value < -0x800)
2149 return bfd_reloc_overflow;
2150
2151 bfd_put_32 (input_bfd,
2152 (insn & 0xfffff000) | (value & 0xfff),
2153 contents + relocation->r_offset);
2154
2155 return bfd_reloc_ok;
2156 }
2157
2158 /* Handle an FRV small data reloc. for the u12 field. */
2159
2160 static bfd_reloc_status_type
2161 elf32_frv_relocate_gprelu12 (struct bfd_link_info *info,
2162 bfd *input_bfd,
2163 asection *input_section,
2164 Elf_Internal_Rela *relocation,
2165 bfd_byte *contents,
2166 bfd_vma value)
2167 {
2168 bfd_vma insn;
2169 bfd_vma gp;
2170 struct bfd_link_hash_entry *h;
2171 bfd_vma mask;
2172
2173 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2174
2175 gp = (h->u.def.value
2176 + h->u.def.section->output_section->vma
2177 + h->u.def.section->output_offset);
2178
2179 value -= input_section->output_section->vma;
2180 value -= (gp - input_section->output_section->vma);
2181
2182 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2183
2184 value += relocation->r_addend;
2185
2186 if ((long) value > 0x7ff || (long) value < -0x800)
2187 return bfd_reloc_overflow;
2188
2189 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2190 mask = 0x3f03f;
2191 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2192
2193 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2194
2195 return bfd_reloc_ok;
2196 }
2197
2198 /* Handle an FRV ELF HI16 reloc. */
2199
2200 static bfd_reloc_status_type
2201 elf32_frv_relocate_hi16 (bfd *input_bfd,
2202 Elf_Internal_Rela *relhi,
2203 bfd_byte *contents,
2204 bfd_vma value)
2205 {
2206 bfd_vma insn;
2207
2208 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2209
2210 value += relhi->r_addend;
2211 value = ((value >> 16) & 0xffff);
2212
2213 insn = (insn & 0xffff0000) | value;
2214
2215 if ((long) value > 0xffff || (long) value < -0x10000)
2216 return bfd_reloc_overflow;
2217
2218 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2219 return bfd_reloc_ok;
2220
2221 }
2222 static bfd_reloc_status_type
2223 elf32_frv_relocate_lo16 (bfd *input_bfd,
2224 Elf_Internal_Rela *rello,
2225 bfd_byte *contents,
2226 bfd_vma value)
2227 {
2228 bfd_vma insn;
2229
2230 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2231
2232 value += rello->r_addend;
2233 value = value & 0xffff;
2234
2235 insn = (insn & 0xffff0000) | value;
2236
2237 if ((long) value > 0xffff || (long) value < -0x10000)
2238 return bfd_reloc_overflow;
2239
2240 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2241 return bfd_reloc_ok;
2242 }
2243
2244 /* Perform the relocation for the CALL label24 instruction. */
2245
2246 static bfd_reloc_status_type
2247 elf32_frv_relocate_label24 (bfd *input_bfd,
2248 asection *input_section,
2249 Elf_Internal_Rela *rello,
2250 bfd_byte *contents,
2251 bfd_vma value)
2252 {
2253 bfd_vma insn;
2254 bfd_vma label6;
2255 bfd_vma label18;
2256
2257 /* The format for the call instruction is:
2258
2259 0 000000 0001111 000000000000000000
2260 label6 opcode label18
2261
2262 The branch calculation is: pc + (4*label24)
2263 where label24 is the concatenation of label6 and label18. */
2264
2265 /* Grab the instruction. */
2266 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2267
2268 value -= input_section->output_section->vma + input_section->output_offset;
2269 value -= rello->r_offset;
2270 value += rello->r_addend;
2271
2272 value = value >> 2;
2273
2274 label6 = value & 0xfc0000;
2275 label6 = label6 << 7;
2276
2277 label18 = value & 0x3ffff;
2278
2279 insn = insn & 0x803c0000;
2280 insn = insn | label6;
2281 insn = insn | label18;
2282
2283 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2284
2285 return bfd_reloc_ok;
2286 }
2287
2288 static bfd_reloc_status_type
2289 elf32_frv_relocate_gprelhi (struct bfd_link_info *info,
2290 bfd *input_bfd,
2291 asection *input_section,
2292 Elf_Internal_Rela *relocation,
2293 bfd_byte *contents,
2294 bfd_vma value)
2295 {
2296 bfd_vma insn;
2297 bfd_vma gp;
2298 struct bfd_link_hash_entry *h;
2299
2300 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2301
2302 gp = (h->u.def.value
2303 + h->u.def.section->output_section->vma
2304 + h->u.def.section->output_offset);
2305
2306 value -= input_section->output_section->vma;
2307 value -= (gp - input_section->output_section->vma);
2308 value += relocation->r_addend;
2309 value = ((value >> 16) & 0xffff);
2310
2311 if ((long) value > 0xffff || (long) value < -0x10000)
2312 return bfd_reloc_overflow;
2313
2314 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2315 insn = (insn & 0xffff0000) | value;
2316
2317 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2318 return bfd_reloc_ok;
2319 }
2320
2321 static bfd_reloc_status_type
2322 elf32_frv_relocate_gprello (struct bfd_link_info *info,
2323 bfd *input_bfd,
2324 asection *input_section,
2325 Elf_Internal_Rela *relocation,
2326 bfd_byte *contents,
2327 bfd_vma value)
2328 {
2329 bfd_vma insn;
2330 bfd_vma gp;
2331 struct bfd_link_hash_entry *h;
2332
2333 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2334
2335 gp = (h->u.def.value
2336 + h->u.def.section->output_section->vma
2337 + h->u.def.section->output_offset);
2338
2339 value -= input_section->output_section->vma;
2340 value -= (gp - input_section->output_section->vma);
2341 value += relocation->r_addend;
2342 value = value & 0xffff;
2343
2344 if ((long) value > 0xffff || (long) value < -0x10000)
2345 return bfd_reloc_overflow;
2346
2347 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2348 insn = (insn & 0xffff0000) | value;
2349
2350 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2351
2352 return bfd_reloc_ok;
2353 }
2354
2355 static reloc_howto_type *
2356 frv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2357 bfd_reloc_code_real_type code)
2358 {
2359 switch (code)
2360 {
2361 default:
2362 break;
2363
2364 case BFD_RELOC_NONE:
2365 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2366
2367 case BFD_RELOC_32:
2368 if (elf_elfheader (abfd)->e_type == ET_EXEC
2369 || elf_elfheader (abfd)->e_type == ET_DYN)
2370 return &elf32_frv_rel_32_howto;
2371 /* Fall through. */
2372 case BFD_RELOC_CTOR:
2373 return &elf32_frv_howto_table[ (int) R_FRV_32];
2374
2375 case BFD_RELOC_FRV_LABEL16:
2376 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2377
2378 case BFD_RELOC_FRV_LABEL24:
2379 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2380
2381 case BFD_RELOC_FRV_LO16:
2382 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2383
2384 case BFD_RELOC_FRV_HI16:
2385 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2386
2387 case BFD_RELOC_FRV_GPREL12:
2388 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2389
2390 case BFD_RELOC_FRV_GPRELU12:
2391 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2392
2393 case BFD_RELOC_FRV_GPREL32:
2394 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2395
2396 case BFD_RELOC_FRV_GPRELHI:
2397 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2398
2399 case BFD_RELOC_FRV_GPRELLO:
2400 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2401
2402 case BFD_RELOC_FRV_GOT12:
2403 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2404
2405 case BFD_RELOC_FRV_GOTHI:
2406 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2407
2408 case BFD_RELOC_FRV_GOTLO:
2409 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2410
2411 case BFD_RELOC_FRV_FUNCDESC:
2412 if (elf_elfheader (abfd)->e_type == ET_EXEC
2413 || elf_elfheader (abfd)->e_type == ET_DYN)
2414 return &elf32_frv_rel_funcdesc_howto;
2415 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2416
2417 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2418 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2419
2420 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2421 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2422
2423 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2424 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2425
2426 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2427 if (elf_elfheader (abfd)->e_type == ET_EXEC
2428 || elf_elfheader (abfd)->e_type == ET_DYN)
2429 return &elf32_frv_rel_funcdesc_value_howto;
2430 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2431
2432 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2433 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2434
2435 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2436 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2437
2438 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2439 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2440
2441 case BFD_RELOC_FRV_GOTOFF12:
2442 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2443
2444 case BFD_RELOC_FRV_GOTOFFHI:
2445 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2446
2447 case BFD_RELOC_FRV_GOTOFFLO:
2448 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2449
2450 case BFD_RELOC_FRV_GETTLSOFF:
2451 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2452
2453 case BFD_RELOC_FRV_TLSDESC_VALUE:
2454 if (elf_elfheader (abfd)->e_type == ET_EXEC
2455 || elf_elfheader (abfd)->e_type == ET_DYN)
2456 return &elf32_frv_rel_tlsdesc_value_howto;
2457 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2458
2459 case BFD_RELOC_FRV_GOTTLSDESC12:
2460 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2461
2462 case BFD_RELOC_FRV_GOTTLSDESCHI:
2463 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2464
2465 case BFD_RELOC_FRV_GOTTLSDESCLO:
2466 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2467
2468 case BFD_RELOC_FRV_TLSMOFF12:
2469 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2470
2471 case BFD_RELOC_FRV_TLSMOFFHI:
2472 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2473
2474 case BFD_RELOC_FRV_TLSMOFFLO:
2475 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2476
2477 case BFD_RELOC_FRV_GOTTLSOFF12:
2478 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2479
2480 case BFD_RELOC_FRV_GOTTLSOFFHI:
2481 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2482
2483 case BFD_RELOC_FRV_GOTTLSOFFLO:
2484 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2485
2486 case BFD_RELOC_FRV_TLSOFF:
2487 if (elf_elfheader (abfd)->e_type == ET_EXEC
2488 || elf_elfheader (abfd)->e_type == ET_DYN)
2489 return &elf32_frv_rel_tlsoff_howto;
2490 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2491
2492 case BFD_RELOC_FRV_TLSDESC_RELAX:
2493 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2494
2495 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2496 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2497
2498 case BFD_RELOC_FRV_TLSOFF_RELAX:
2499 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2500
2501 case BFD_RELOC_FRV_TLSMOFF:
2502 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2503
2504 case BFD_RELOC_VTABLE_INHERIT:
2505 return &elf32_frv_vtinherit_howto;
2506
2507 case BFD_RELOC_VTABLE_ENTRY:
2508 return &elf32_frv_vtentry_howto;
2509 }
2510
2511 return NULL;
2512 }
2513
2514 static reloc_howto_type *
2515 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2516 {
2517 unsigned int i;
2518
2519 for (i = 0;
2520 i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2521 i++)
2522 if (elf32_frv_howto_table[i].name != NULL
2523 && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2524 return &elf32_frv_howto_table[i];
2525
2526 if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2527 return &elf32_frv_vtinherit_howto;
2528 if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2529 return &elf32_frv_vtentry_howto;
2530
2531 return NULL;
2532 }
2533
2534 /* Set the howto pointer for an FRV ELF reloc. */
2535
2536 static bfd_boolean
2537 frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2538 arelent *cache_ptr,
2539 Elf_Internal_Rela *dst)
2540 {
2541 unsigned int r_type;
2542
2543 r_type = ELF32_R_TYPE (dst->r_info);
2544 switch (r_type)
2545 {
2546 case R_FRV_GNU_VTINHERIT:
2547 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2548 break;
2549
2550 case R_FRV_GNU_VTENTRY:
2551 cache_ptr->howto = &elf32_frv_vtentry_howto;
2552 break;
2553
2554 default:
2555 if (r_type >= ARRAY_SIZE (elf32_frv_howto_table))
2556 {
2557 /* xgettext:c-format */
2558 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
2559 abfd, r_type);
2560 bfd_set_error (bfd_error_bad_value);
2561 return FALSE;
2562 }
2563 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2564 break;
2565 }
2566 return TRUE;
2567 }
2568
2569 /* Set the howto pointer for an FRV ELF REL reloc. */
2570
2571 static bfd_boolean
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 return FALSE;
2603 }
2604 return TRUE;
2605 }
2606 \f
2607 /* Perform a single relocation. By default we use the standard BFD
2608 routines, but a few relocs, we have to do them ourselves. */
2609
2610 static bfd_reloc_status_type
2611 frv_final_link_relocate (reloc_howto_type *howto,
2612 bfd *input_bfd,
2613 asection *input_section,
2614 bfd_byte *contents,
2615 Elf_Internal_Rela *rel,
2616 bfd_vma relocation)
2617 {
2618 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2619 contents, rel->r_offset, relocation,
2620 rel->r_addend);
2621 }
2622
2623 \f
2624 /* Relocate an FRV ELF section.
2625
2626 The RELOCATE_SECTION function is called by the new ELF backend linker
2627 to handle the relocations for a section.
2628
2629 The relocs are always passed as Rela structures; if the section
2630 actually uses Rel structures, the r_addend field will always be
2631 zero.
2632
2633 This function is responsible for adjusting the section contents as
2634 necessary, and (if using Rela relocs and generating a relocatable
2635 output file) adjusting the reloc addend as necessary.
2636
2637 This function does not have to worry about setting the reloc
2638 address or the reloc symbol index.
2639
2640 LOCAL_SYMS is a pointer to the swapped in local symbols.
2641
2642 LOCAL_SECTIONS is an array giving the section in the input file
2643 corresponding to the st_shndx field of each local symbol.
2644
2645 The global hash table entry for the global symbols can be found
2646 via elf_sym_hashes (input_bfd).
2647
2648 When generating relocatable output, this function must handle
2649 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2650 going to be the section symbol corresponding to the output
2651 section, which means that the addend must be adjusted
2652 accordingly. */
2653
2654 static bfd_boolean
2655 elf32_frv_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2656 struct bfd_link_info *info,
2657 bfd *input_bfd,
2658 asection *input_section,
2659 bfd_byte *contents,
2660 Elf_Internal_Rela *relocs,
2661 Elf_Internal_Sym *local_syms,
2662 asection **local_sections)
2663 {
2664 Elf_Internal_Shdr *symtab_hdr;
2665 struct elf_link_hash_entry **sym_hashes;
2666 Elf_Internal_Rela *rel;
2667 Elf_Internal_Rela *relend;
2668 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2669 check_segment[2];
2670 int silence_segment_error = !bfd_link_pic (info);
2671 unsigned long insn;
2672
2673 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2674 sym_hashes = elf_sym_hashes (input_bfd);
2675 relend = relocs + input_section->reloc_count;
2676
2677 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2678 input_section->output_section);
2679 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2680 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2681 frvfdpic_got_section (info)
2682 ->output_section);
2683 else
2684 got_segment = -1;
2685 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2686 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2687 frvfdpic_gotfixup_section (info)
2688 ->output_section);
2689 else
2690 gprel_segment = -1;
2691 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2692 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2693 frvfdpic_plt_section (info)
2694 ->output_section);
2695 else
2696 plt_segment = -1;
2697 if (elf_hash_table (info)->tls_sec)
2698 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2699 elf_hash_table (info)->tls_sec);
2700 else
2701 tls_segment = -1;
2702
2703 for (rel = relocs; rel < relend; rel ++)
2704 {
2705 reloc_howto_type *howto;
2706 unsigned long r_symndx;
2707 Elf_Internal_Sym *sym;
2708 asection *sec;
2709 struct elf_link_hash_entry *h;
2710 bfd_vma relocation;
2711 bfd_reloc_status_type r;
2712 const char *name;
2713 int r_type;
2714 asection *osec;
2715 struct frvfdpic_relocs_info *picrel;
2716 bfd_vma orig_addend = rel->r_addend;
2717
2718 r_type = ELF32_R_TYPE (rel->r_info);
2719
2720 if ( r_type == R_FRV_GNU_VTINHERIT
2721 || r_type == R_FRV_GNU_VTENTRY)
2722 continue;
2723
2724 r_symndx = ELF32_R_SYM (rel->r_info);
2725 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2726 h = NULL;
2727 sym = NULL;
2728 sec = NULL;
2729
2730 if (r_symndx < symtab_hdr->sh_info)
2731 {
2732 sym = local_syms + r_symndx;
2733 osec = sec = local_sections [r_symndx];
2734 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2735
2736 name = bfd_elf_string_from_elf_section
2737 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2738 if (name == NULL || name[0] == 0)
2739 name = bfd_section_name (sec);
2740 }
2741 else
2742 {
2743 bfd_boolean warned, ignored;
2744 bfd_boolean unresolved_reloc;
2745
2746 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2747 r_symndx, symtab_hdr, sym_hashes,
2748 h, sec, relocation,
2749 unresolved_reloc, warned, ignored);
2750 osec = sec;
2751 name = h->root.root.string;
2752 }
2753
2754 if (sec != NULL && discarded_section (sec))
2755 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2756 rel, 1, relend, howto, 0, contents);
2757
2758 if (bfd_link_relocatable (info))
2759 continue;
2760
2761 if (r_type != R_FRV_TLSMOFF
2762 && h != NULL
2763 && (h->root.type == bfd_link_hash_defined
2764 || h->root.type == bfd_link_hash_defweak)
2765 && !FRVFDPIC_SYM_LOCAL (info, h))
2766 {
2767 osec = sec = NULL;
2768 relocation = 0;
2769 }
2770
2771 switch (r_type)
2772 {
2773 case R_FRV_LABEL24:
2774 case R_FRV_32:
2775 if (! IS_FDPIC (output_bfd))
2776 goto non_fdpic;
2777 /* Fall through. */
2778
2779 case R_FRV_GOT12:
2780 case R_FRV_GOTHI:
2781 case R_FRV_GOTLO:
2782 case R_FRV_FUNCDESC_GOT12:
2783 case R_FRV_FUNCDESC_GOTHI:
2784 case R_FRV_FUNCDESC_GOTLO:
2785 case R_FRV_GOTOFF12:
2786 case R_FRV_GOTOFFHI:
2787 case R_FRV_GOTOFFLO:
2788 case R_FRV_FUNCDESC_GOTOFF12:
2789 case R_FRV_FUNCDESC_GOTOFFHI:
2790 case R_FRV_FUNCDESC_GOTOFFLO:
2791 case R_FRV_FUNCDESC:
2792 case R_FRV_FUNCDESC_VALUE:
2793 case R_FRV_GETTLSOFF:
2794 case R_FRV_TLSDESC_VALUE:
2795 case R_FRV_GOTTLSDESC12:
2796 case R_FRV_GOTTLSDESCHI:
2797 case R_FRV_GOTTLSDESCLO:
2798 case R_FRV_TLSMOFF12:
2799 case R_FRV_TLSMOFFHI:
2800 case R_FRV_TLSMOFFLO:
2801 case R_FRV_GOTTLSOFF12:
2802 case R_FRV_GOTTLSOFFHI:
2803 case R_FRV_GOTTLSOFFLO:
2804 case R_FRV_TLSOFF:
2805 case R_FRV_TLSDESC_RELAX:
2806 case R_FRV_GETTLSOFF_RELAX:
2807 case R_FRV_TLSOFF_RELAX:
2808 case R_FRV_TLSMOFF:
2809 if (h != NULL)
2810 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2811 (info), input_bfd, h,
2812 orig_addend, INSERT);
2813 else
2814 /* In order to find the entry we created before, we must
2815 use the original addend, not the one that may have been
2816 modified by _bfd_elf_rela_local_sym(). */
2817 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2818 (info), input_bfd, r_symndx,
2819 orig_addend, INSERT);
2820 if (! picrel)
2821 return FALSE;
2822
2823 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2824 osec, sym,
2825 rel->r_addend))
2826 {
2827 info->callbacks->einfo
2828 /* xgettext:c-format */
2829 (_("%H: relocation to `%s+%v'"
2830 " may have caused the error above\n"),
2831 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2832 return FALSE;
2833 }
2834
2835 break;
2836
2837 default:
2838 non_fdpic:
2839 picrel = NULL;
2840 if (h
2841 && ! FRVFDPIC_SYM_LOCAL (info, h)
2842 && _bfd_elf_section_offset (output_bfd, info, input_section,
2843 rel->r_offset) != (bfd_vma) -1)
2844 {
2845 info->callbacks->einfo
2846 (_("%H: relocation references symbol"
2847 " not defined in the module\n"),
2848 input_bfd, input_section, rel->r_offset);
2849 return FALSE;
2850 }
2851 break;
2852 }
2853
2854 switch (r_type)
2855 {
2856 case R_FRV_GETTLSOFF:
2857 case R_FRV_TLSDESC_VALUE:
2858 case R_FRV_GOTTLSDESC12:
2859 case R_FRV_GOTTLSDESCHI:
2860 case R_FRV_GOTTLSDESCLO:
2861 case R_FRV_TLSMOFF12:
2862 case R_FRV_TLSMOFFHI:
2863 case R_FRV_TLSMOFFLO:
2864 case R_FRV_GOTTLSOFF12:
2865 case R_FRV_GOTTLSOFFHI:
2866 case R_FRV_GOTTLSOFFLO:
2867 case R_FRV_TLSOFF:
2868 case R_FRV_TLSDESC_RELAX:
2869 case R_FRV_GETTLSOFF_RELAX:
2870 case R_FRV_TLSOFF_RELAX:
2871 case R_FRV_TLSMOFF:
2872 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2873 relocation += tls_biased_base (info);
2874 break;
2875
2876 default:
2877 break;
2878 }
2879
2880 /* Try to apply TLS relaxations. */
2881 if (1)
2882 switch (r_type)
2883 {
2884
2885 #define LOCAL_EXEC_P(info, picrel) \
2886 (bfd_link_executable (info) \
2887 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2888 #define INITIAL_EXEC_P(info, picrel) \
2889 ((bfd_link_executable (info)|| (info)->flags & DF_STATIC_TLS) \
2890 && (picrel)->tlsoff_entry)
2891
2892 #define IN_RANGE_FOR_OFST12_P(value) \
2893 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2894 #define IN_RANGE_FOR_SETLOS_P(value) \
2895 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2896 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2897 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2898
2899 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2900 (LOCAL_EXEC_P ((info), (picrel)) \
2901 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2902 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2903 (INITIAL_EXEC_P ((info), (picrel)) \
2904 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2905
2906 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2907 (LOCAL_EXEC_P ((info), (picrel)))
2908 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2909 (INITIAL_EXEC_P ((info), (picrel)))
2910
2911 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2912 (LOCAL_EXEC_P ((info), (picrel)) \
2913 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2914
2915 case R_FRV_GETTLSOFF:
2916 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2917
2918 /* Is this a call instruction? */
2919 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2920 {
2921 info->callbacks->einfo
2922 (_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
2923 input_bfd, input_section, rel->r_offset);
2924 return FALSE;
2925 }
2926
2927 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2928 relocation + rel->r_addend))
2929 {
2930 /* Replace the call instruction (except the packing bit)
2931 with setlos #tlsmofflo(symbol+offset), gr9. */
2932 insn &= (unsigned long)0x80000000;
2933 insn |= (unsigned long)0x12fc0000;
2934 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2935
2936 r_type = R_FRV_TLSMOFFLO;
2937 howto = elf32_frv_howto_table + r_type;
2938 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2939 }
2940
2941 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
2942 {
2943 /* Replace the call instruction (except the packing bit)
2944 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
2945 insn &= (unsigned long)0x80000000;
2946 insn |= (unsigned long)0x12c8f000;
2947 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2948
2949 r_type = R_FRV_GOTTLSOFF12;
2950 howto = elf32_frv_howto_table + r_type;
2951 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2952 }
2953
2954 break;
2955
2956 case R_FRV_GOTTLSDESC12:
2957 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2958
2959 /* Is this an lddi instruction? */
2960 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
2961 {
2962 info->callbacks->einfo
2963 (_("%H: R_FRV_GOTTLSDESC12"
2964 " not applied to an lddi instruction\n"),
2965 input_bfd, input_section, rel->r_offset);
2966 return FALSE;
2967 }
2968
2969 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2970 relocation + rel->r_addend)
2971 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
2972 info))
2973 {
2974 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2975 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
2976 Preserve the packing bit. */
2977 insn = (insn & (unsigned long)0x80000000)
2978 | ((insn + (unsigned long)0x02000000)
2979 & (unsigned long)0x7e000000);
2980 insn |= (unsigned long)0x00fc0000;
2981 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2982
2983 r_type = R_FRV_TLSMOFFLO;
2984 howto = elf32_frv_howto_table + r_type;
2985 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2986 }
2987
2988 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2989 relocation + rel->r_addend))
2990 {
2991 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2992 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
2993 Preserve the packing bit. */
2994 insn = (insn & (unsigned long)0x80000000)
2995 | ((insn + (unsigned long)0x02000000)
2996 & (unsigned long)0x7e000000);
2997 insn |= (unsigned long)0x00f80000;
2998 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2999
3000 r_type = R_FRV_TLSMOFFHI;
3001 howto = elf32_frv_howto_table + r_type;
3002 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3003 }
3004
3005 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3006 {
3007 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3008 with ldi @(grB, #gottlsoff12(symbol+offset),
3009 gr<C+1>. Preserve the packing bit. If gottlsoff12
3010 overflows, we'll error out, but that's sort-of ok,
3011 since we'd started with gottlsdesc12, that's actually
3012 more demanding. Compiling with -fPIE instead of
3013 -fpie would fix it; linking with --relax should fix
3014 it as well. */
3015 insn = (insn & (unsigned long)0x80cbf000)
3016 | ((insn + (unsigned long)0x02000000)
3017 & (unsigned long)0x7e000000);
3018 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3019
3020 r_type = R_FRV_GOTTLSOFF12;
3021 howto = elf32_frv_howto_table + r_type;
3022 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3023 }
3024
3025 break;
3026
3027 case R_FRV_GOTTLSDESCHI:
3028 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3029
3030 /* Is this a sethi instruction? */
3031 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3032 {
3033 info->callbacks->einfo
3034 (_("%H: R_FRV_GOTTLSDESCHI"
3035 " not applied to a sethi instruction\n"),
3036 input_bfd, input_section, rel->r_offset);
3037 return FALSE;
3038 }
3039
3040 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3041 relocation + rel->r_addend)
3042 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3043 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3044 {
3045 /* Replace sethi with a nop. Preserve the packing bit. */
3046 insn &= (unsigned long)0x80000000;
3047 insn |= (unsigned long)0x00880000;
3048 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3049
3050 /* Nothing to relocate. */
3051 continue;
3052 }
3053
3054 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3055 {
3056 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3057 r_type = R_FRV_GOTTLSOFFHI;
3058 howto = elf32_frv_howto_table + r_type;
3059 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3060 }
3061
3062 break;
3063
3064 case R_FRV_GOTTLSDESCLO:
3065 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3066
3067 /* Is this a setlo or setlos instruction? */
3068 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3069 {
3070 info->callbacks->einfo
3071 (_("%H: R_FRV_GOTTLSDESCLO"
3072 " not applied to a setlo or setlos instruction\n"),
3073 input_bfd, input_section, rel->r_offset);
3074 return FALSE;
3075 }
3076
3077 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3078 relocation + rel->r_addend)
3079 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3080 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3081 {
3082 /* Replace setlo/setlos with a nop. Preserve the
3083 packing bit. */
3084 insn &= (unsigned long)0x80000000;
3085 insn |= (unsigned long)0x00880000;
3086 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3087
3088 /* Nothing to relocate. */
3089 continue;
3090 }
3091
3092 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3093 {
3094 /* If the corresponding sethi (if it exists) decayed
3095 to a nop, make sure this becomes (or already is) a
3096 setlos, not setlo. */
3097 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3098 {
3099 insn |= (unsigned long)0x00080000;
3100 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3101 }
3102
3103 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3104 r_type = R_FRV_GOTTLSOFFLO;
3105 howto = elf32_frv_howto_table + r_type;
3106 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3107 }
3108
3109 break;
3110
3111 case R_FRV_TLSDESC_RELAX:
3112 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3113
3114 /* Is this an ldd instruction? */
3115 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3116 {
3117 info->callbacks->einfo
3118 (_("%H: R_FRV_TLSDESC_RELAX"
3119 " not applied to an ldd instruction\n"),
3120 input_bfd, input_section, rel->r_offset);
3121 return FALSE;
3122 }
3123
3124 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3125 relocation + rel->r_addend)
3126 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3127 info))
3128 {
3129 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3130 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3131 Preserve the packing bit. */
3132 insn = (insn & (unsigned long)0x80000000)
3133 | ((insn + (unsigned long)0x02000000)
3134 & (unsigned long)0x7e000000);
3135 insn |= (unsigned long)0x00fc0000;
3136 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3137
3138 r_type = R_FRV_TLSMOFFLO;
3139 howto = elf32_frv_howto_table + r_type;
3140 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3141 }
3142
3143 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3144 relocation + rel->r_addend))
3145 {
3146 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3147 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3148 Preserve the packing bit. */
3149 insn = (insn & (unsigned long)0x80000000)
3150 | ((insn + (unsigned long)0x02000000)
3151 & (unsigned long)0x7e000000);
3152 insn |= (unsigned long)0x00f80000;
3153 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3154
3155 r_type = R_FRV_TLSMOFFHI;
3156 howto = elf32_frv_howto_table + r_type;
3157 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3158 }
3159
3160 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3161 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3162 {
3163 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3164 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3165 Preserve the packing bit. */
3166 insn = (insn & (unsigned long)0x8003f000)
3167 | (unsigned long)0x00c80000
3168 | ((insn + (unsigned long)0x02000000)
3169 & (unsigned long)0x7e000000);
3170 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3171
3172 r_type = R_FRV_GOTTLSOFF12;
3173 howto = elf32_frv_howto_table + r_type;
3174 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3175 }
3176
3177 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3178 {
3179 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3180 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3181 Preserve the packing bit. */
3182 insn = (insn & (unsigned long)0x81ffffbf)
3183 | ((insn + (unsigned long)0x02000000)
3184 & (unsigned long)0x7e000000);
3185 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3186
3187 /* #tlsoff(symbol+offset) is just a relaxation
3188 annotation, so there's nothing left to
3189 relocate. */
3190 continue;
3191 }
3192
3193 break;
3194
3195 case R_FRV_GETTLSOFF_RELAX:
3196 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3197
3198 /* Is this a calll or callil instruction? */
3199 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3200 {
3201 info->callbacks->einfo
3202 (_("%H: R_FRV_GETTLSOFF_RELAX"
3203 " not applied to a calll instruction\n"),
3204 input_bfd, input_section, rel->r_offset);
3205 return FALSE;
3206 }
3207
3208 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3209 relocation + rel->r_addend)
3210 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3211 info))
3212 {
3213 /* Replace calll with a nop. Preserve the packing bit. */
3214 insn &= (unsigned long)0x80000000;
3215 insn |= (unsigned long)0x00880000;
3216 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3217
3218 /* Nothing to relocate. */
3219 continue;
3220 }
3221
3222 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3223 relocation + rel->r_addend))
3224 {
3225 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3226 Preserve the packing bit. */
3227 insn &= (unsigned long)0x80000000;
3228 insn |= (unsigned long)0x12f40000;
3229 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3230
3231 r_type = R_FRV_TLSMOFFLO;
3232 howto = elf32_frv_howto_table + r_type;
3233 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3234 }
3235
3236 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3237 {
3238 /* Replace calll with a nop. Preserve the packing bit. */
3239 insn &= (unsigned long)0x80000000;
3240 insn |= (unsigned long)0x00880000;
3241 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3242
3243 /* Nothing to relocate. */
3244 continue;
3245 }
3246
3247 break;
3248
3249 case R_FRV_GOTTLSOFF12:
3250 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3251
3252 /* Is this an ldi instruction? */
3253 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3254 {
3255 info->callbacks->einfo
3256 (_("%H: R_FRV_GOTTLSOFF12"
3257 " not applied to an ldi instruction\n"),
3258 input_bfd, input_section, rel->r_offset);
3259 return FALSE;
3260 }
3261
3262 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3263 relocation + rel->r_addend))
3264 {
3265 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3266 with setlos #tlsmofflo(symbol+offset), grC.
3267 Preserve the packing bit. */
3268 insn &= (unsigned long)0xfe000000;
3269 insn |= (unsigned long)0x00fc0000;
3270 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3271
3272 r_type = R_FRV_TLSMOFFLO;
3273 howto = elf32_frv_howto_table + r_type;
3274 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3275 }
3276
3277 break;
3278
3279 case R_FRV_GOTTLSOFFHI:
3280 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3281
3282 /* Is this a sethi instruction? */
3283 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3284 {
3285 info->callbacks->einfo
3286 (_("%H: R_FRV_GOTTLSOFFHI"
3287 " not applied to a sethi instruction\n"),
3288 input_bfd, input_section, rel->r_offset);
3289 return FALSE;
3290 }
3291
3292 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3293 relocation + rel->r_addend)
3294 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3295 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3296 {
3297 /* Replace sethi with a nop. Preserve the packing bit. */
3298 insn &= (unsigned long)0x80000000;
3299 insn |= (unsigned long)0x00880000;
3300 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3301
3302 /* Nothing to relocate. */
3303 continue;
3304 }
3305
3306 break;
3307
3308 case R_FRV_GOTTLSOFFLO:
3309 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3310
3311 /* Is this a setlo or setlos instruction? */
3312 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3313 {
3314 info->callbacks->einfo
3315 (_("%H: R_FRV_GOTTLSOFFLO"
3316 " not applied to a setlo or setlos instruction\n"),
3317 input_bfd, input_section, rel->r_offset);
3318 return FALSE;
3319 }
3320
3321 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3322 relocation + rel->r_addend)
3323 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3324 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3325 {
3326 /* Replace setlo/setlos with a nop. Preserve the
3327 packing bit. */
3328 insn &= (unsigned long)0x80000000;
3329 insn |= (unsigned long)0x00880000;
3330 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3331
3332 /* Nothing to relocate. */
3333 continue;
3334 }
3335
3336 break;
3337
3338 case R_FRV_TLSOFF_RELAX:
3339 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3340
3341 /* Is this an ld instruction? */
3342 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3343 {
3344 info->callbacks->einfo
3345 (_("%H: R_FRV_TLSOFF_RELAX"
3346 " not applied to an ld instruction\n"),
3347 input_bfd, input_section, rel->r_offset);
3348 return FALSE;
3349 }
3350
3351 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3352 relocation + rel->r_addend))
3353 {
3354 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3355 with setlos #tlsmofflo(symbol+offset), grC.
3356 Preserve the packing bit. */
3357 insn &= (unsigned long)0xfe000000;
3358 insn |= (unsigned long)0x00fc0000;
3359 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3360
3361 r_type = R_FRV_TLSMOFFLO;
3362 howto = elf32_frv_howto_table + r_type;
3363 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3364 }
3365
3366 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3367 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3368 {
3369 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3370 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3371 Preserve the packing bit. */
3372 insn = (insn & (unsigned long)0xfe03f000)
3373 | (unsigned long)0x00c80000;
3374 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3375
3376 r_type = R_FRV_GOTTLSOFF12;
3377 howto = elf32_frv_howto_table + r_type;
3378 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3379 }
3380
3381 break;
3382
3383 case R_FRV_TLSMOFFHI:
3384 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3385
3386 /* Is this a sethi instruction? */
3387 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3388 {
3389 info->callbacks->einfo
3390 (_("%H: R_FRV_TLSMOFFHI"
3391 " not applied to a sethi instruction\n"),
3392 input_bfd, input_section, rel->r_offset);
3393 return FALSE;
3394 }
3395
3396 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3397 info))
3398 {
3399 /* Replace sethi with a nop. Preserve the packing bit. */
3400 insn &= (unsigned long)0x80000000;
3401 insn |= (unsigned long)0x00880000;
3402 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3403
3404 /* Nothing to relocate. */
3405 continue;
3406 }
3407
3408 break;
3409
3410 case R_FRV_TLSMOFFLO:
3411 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3412
3413 /* Is this a setlo or setlos instruction? */
3414 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3415 {
3416 info->callbacks->einfo
3417 (_("R_FRV_TLSMOFFLO"
3418 " not applied to a setlo or setlos instruction\n"),
3419 input_bfd, input_section, rel->r_offset);
3420 return FALSE;
3421 }
3422
3423 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3424 info))
3425 /* If the corresponding sethi (if it exists) decayed
3426 to a nop, make sure this becomes (or already is) a
3427 setlos, not setlo. */
3428 {
3429 insn |= (unsigned long)0x00080000;
3430 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3431 }
3432
3433 break;
3434
3435 /*
3436 There's nothing to relax in these:
3437 R_FRV_TLSDESC_VALUE
3438 R_FRV_TLSOFF
3439 R_FRV_TLSMOFF12
3440 R_FRV_TLSMOFFHI
3441 R_FRV_TLSMOFFLO
3442 R_FRV_TLSMOFF
3443 */
3444
3445 default:
3446 break;
3447 }
3448
3449 switch (r_type)
3450 {
3451 case R_FRV_LABEL24:
3452 check_segment[0] = isec_segment;
3453 if (! IS_FDPIC (output_bfd))
3454 check_segment[1] = isec_segment;
3455 else if (picrel->plt)
3456 {
3457 relocation = frvfdpic_plt_section (info)->output_section->vma
3458 + frvfdpic_plt_section (info)->output_offset
3459 + picrel->plt_entry;
3460 check_segment[1] = plt_segment;
3461 }
3462 /* We don't want to warn on calls to undefined weak symbols,
3463 as calls to them must be protected by non-NULL tests
3464 anyway, and unprotected calls would invoke undefined
3465 behavior. */
3466 else if (picrel->symndx == -1
3467 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3468 check_segment[1] = check_segment[0];
3469 else
3470 check_segment[1] = sec
3471 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3472 : (unsigned)-1;
3473 break;
3474
3475 case R_FRV_GOT12:
3476 case R_FRV_GOTHI:
3477 case R_FRV_GOTLO:
3478 relocation = picrel->got_entry;
3479 check_segment[0] = check_segment[1] = got_segment;
3480 break;
3481
3482 case R_FRV_FUNCDESC_GOT12:
3483 case R_FRV_FUNCDESC_GOTHI:
3484 case R_FRV_FUNCDESC_GOTLO:
3485 relocation = picrel->fdgot_entry;
3486 check_segment[0] = check_segment[1] = got_segment;
3487 break;
3488
3489 case R_FRV_GOTOFFHI:
3490 case R_FRV_GOTOFF12:
3491 case R_FRV_GOTOFFLO:
3492 relocation -= frvfdpic_got_section (info)->output_section->vma
3493 + frvfdpic_got_section (info)->output_offset
3494 + frvfdpic_got_initial_offset (info);
3495 check_segment[0] = got_segment;
3496 check_segment[1] = sec
3497 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3498 : (unsigned)-1;
3499 break;
3500
3501 case R_FRV_FUNCDESC_GOTOFF12:
3502 case R_FRV_FUNCDESC_GOTOFFHI:
3503 case R_FRV_FUNCDESC_GOTOFFLO:
3504 relocation = picrel->fd_entry;
3505 check_segment[0] = check_segment[1] = got_segment;
3506 break;
3507
3508 case R_FRV_FUNCDESC:
3509 {
3510 int dynindx;
3511 bfd_vma addend = rel->r_addend;
3512
3513 if (! (h && h->root.type == bfd_link_hash_undefweak
3514 && FRVFDPIC_SYM_LOCAL (info, h)))
3515 {
3516 /* If the symbol is dynamic and there may be dynamic
3517 symbol resolution because we are or are linked with a
3518 shared library, emit a FUNCDESC relocation such that
3519 the dynamic linker will allocate the function
3520 descriptor. If the symbol needs a non-local function
3521 descriptor but binds locally (e.g., its visibility is
3522 protected, emit a dynamic relocation decayed to
3523 section+offset. */
3524 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3525 && FRVFDPIC_SYM_LOCAL (info, h)
3526 && !bfd_link_pde (info))
3527 {
3528 dynindx = elf_section_data (h->root.u.def.section
3529 ->output_section)->dynindx;
3530 addend += h->root.u.def.section->output_offset
3531 + h->root.u.def.value;
3532 }
3533 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3534 {
3535 if (addend)
3536 {
3537 info->callbacks->einfo
3538 (_("%H: %s references dynamic symbol"
3539 " with nonzero addend\n"),
3540 input_bfd, input_section, rel->r_offset,
3541 "R_FRV_FUNCDESC");
3542 return FALSE;
3543 }
3544 dynindx = h->dynindx;
3545 }
3546 else
3547 {
3548 /* Otherwise, we know we have a private function
3549 descriptor, so reference it directly. */
3550 BFD_ASSERT (picrel->privfd);
3551 r_type = R_FRV_32;
3552 dynindx = elf_section_data (frvfdpic_got_section (info)
3553 ->output_section)->dynindx;
3554 addend = frvfdpic_got_section (info)->output_offset
3555 + frvfdpic_got_initial_offset (info)
3556 + picrel->fd_entry;
3557 }
3558
3559 /* If there is room for dynamic symbol resolution, emit
3560 the dynamic relocation. However, if we're linking an
3561 executable at a fixed location, we won't have emitted a
3562 dynamic symbol entry for the got section, so idx will
3563 be zero, which means we can and should compute the
3564 address of the private descriptor ourselves. */
3565 if (bfd_link_pde (info)
3566 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3567 {
3568 addend += frvfdpic_got_section (info)->output_section->vma;
3569 if ((bfd_section_flags (input_section->output_section)
3570 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3571 {
3572 bfd_vma offset;
3573
3574 if (_frvfdpic_osec_readonly_p (output_bfd,
3575 input_section
3576 ->output_section))
3577 {
3578 info->callbacks->einfo
3579 (_("%H: cannot emit fixups"
3580 " in read-only section\n"),
3581 input_bfd, input_section, rel->r_offset);
3582 return FALSE;
3583 }
3584
3585 offset = _bfd_elf_section_offset
3586 (output_bfd, info,
3587 input_section, rel->r_offset);
3588
3589 if (offset != (bfd_vma)-1)
3590 _frvfdpic_add_rofixup (output_bfd,
3591 frvfdpic_gotfixup_section
3592 (info),
3593 offset + input_section
3594 ->output_section->vma
3595 + input_section->output_offset,
3596 picrel);
3597 }
3598 }
3599 else if ((bfd_section_flags (input_section->output_section)
3600 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3601 {
3602 bfd_vma offset;
3603
3604 if (_frvfdpic_osec_readonly_p (output_bfd,
3605 input_section
3606 ->output_section))
3607 {
3608 info->callbacks->einfo
3609 (_("%H: cannot emit dynamic relocations"
3610 " in read-only section\n"),
3611 input_bfd, input_section, rel->r_offset);
3612 return FALSE;
3613 }
3614
3615 offset = _bfd_elf_section_offset
3616 (output_bfd, info,
3617 input_section, rel->r_offset);
3618
3619 if (offset != (bfd_vma)-1)
3620 _frvfdpic_add_dyn_reloc (output_bfd,
3621 frvfdpic_gotrel_section (info),
3622 offset + input_section
3623 ->output_section->vma
3624 + input_section->output_offset,
3625 r_type, dynindx, addend, picrel);
3626 }
3627 else
3628 addend += frvfdpic_got_section (info)->output_section->vma;
3629 }
3630
3631 /* We want the addend in-place because dynamic
3632 relocations are REL. Setting relocation to it should
3633 arrange for it to be installed. */
3634 relocation = addend - rel->r_addend;
3635 }
3636 check_segment[0] = check_segment[1] = got_segment;
3637 break;
3638
3639 case R_FRV_32:
3640 if (! IS_FDPIC (output_bfd))
3641 {
3642 check_segment[0] = check_segment[1] = -1;
3643 break;
3644 }
3645 /* Fall through. */
3646 case R_FRV_FUNCDESC_VALUE:
3647 {
3648 int dynindx;
3649 bfd_vma addend = rel->r_addend;
3650
3651 /* If the symbol is dynamic but binds locally, use
3652 section+offset. */
3653 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3654 {
3655 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3656 {
3657 info->callbacks->einfo
3658 (_("%H: %s references dynamic symbol"
3659 " with nonzero addend\n"),
3660 input_bfd, input_section, rel->r_offset,
3661 "R_FRV_FUNCDESC_VALUE");
3662 return FALSE;
3663 }
3664 dynindx = h->dynindx;
3665 }
3666 else
3667 {
3668 if (h)
3669 addend += h->root.u.def.value;
3670 else
3671 addend += sym->st_value;
3672 if (osec)
3673 addend += osec->output_offset;
3674 if (osec && osec->output_section
3675 && ! bfd_is_abs_section (osec->output_section)
3676 && ! bfd_is_und_section (osec->output_section))
3677 dynindx = elf_section_data (osec->output_section)->dynindx;
3678 else
3679 dynindx = 0;
3680 }
3681
3682 /* If we're linking an executable at a fixed address, we
3683 can omit the dynamic relocation as long as the symbol
3684 is defined in the current link unit (which is implied
3685 by its output section not being NULL). */
3686 if (bfd_link_pde (info)
3687 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3688 {
3689 if (osec)
3690 addend += osec->output_section->vma;
3691 if (IS_FDPIC (input_bfd)
3692 && (bfd_section_flags (input_section->output_section)
3693 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3694 {
3695 if (_frvfdpic_osec_readonly_p (output_bfd,
3696 input_section
3697 ->output_section))
3698 {
3699 info->callbacks->einfo
3700 (_("%H: cannot emit fixups in read-only section\n"),
3701 input_bfd, input_section, rel->r_offset);
3702 return FALSE;
3703 }
3704 if (!h || h->root.type != bfd_link_hash_undefweak)
3705 {
3706 bfd_vma offset = _bfd_elf_section_offset
3707 (output_bfd, info,
3708 input_section, rel->r_offset);
3709
3710 if (offset != (bfd_vma)-1)
3711 {
3712 _frvfdpic_add_rofixup (output_bfd,
3713 frvfdpic_gotfixup_section
3714 (info),
3715 offset + input_section
3716 ->output_section->vma
3717 + input_section->output_offset,
3718 picrel);
3719 if (r_type == R_FRV_FUNCDESC_VALUE)
3720 _frvfdpic_add_rofixup
3721 (output_bfd,
3722 frvfdpic_gotfixup_section (info),
3723 offset
3724 + input_section->output_section->vma
3725 + input_section->output_offset + 4, picrel);
3726 }
3727 }
3728 }
3729 }
3730 else
3731 {
3732 if ((bfd_section_flags (input_section->output_section)
3733 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3734 {
3735 bfd_vma offset;
3736
3737 if (_frvfdpic_osec_readonly_p (output_bfd,
3738 input_section
3739 ->output_section))
3740 {
3741 info->callbacks->einfo
3742 (_("%H: cannot emit dynamic relocations"
3743 " in read-only section\n"),
3744 input_bfd, input_section, rel->r_offset);
3745 return FALSE;
3746 }
3747
3748 offset = _bfd_elf_section_offset
3749 (output_bfd, info,
3750 input_section, rel->r_offset);
3751
3752 if (offset != (bfd_vma)-1)
3753 _frvfdpic_add_dyn_reloc (output_bfd,
3754 frvfdpic_gotrel_section (info),
3755 offset + input_section
3756 ->output_section->vma
3757 + input_section->output_offset,
3758 r_type, dynindx, addend, picrel);
3759 }
3760 else if (osec)
3761 addend += osec->output_section->vma;
3762 /* We want the addend in-place because dynamic
3763 relocations are REL. Setting relocation to it
3764 should arrange for it to be installed. */
3765 relocation = addend - rel->r_addend;
3766 }
3767
3768 if (r_type == R_FRV_FUNCDESC_VALUE)
3769 {
3770 /* If we've omitted the dynamic relocation, just emit
3771 the fixed addresses of the symbol and of the local
3772 GOT base offset. */
3773 if (bfd_link_pde (info)
3774 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3775 bfd_put_32 (output_bfd,
3776 frvfdpic_got_section (info)->output_section->vma
3777 + frvfdpic_got_section (info)->output_offset
3778 + frvfdpic_got_initial_offset (info),
3779 contents + rel->r_offset + 4);
3780 else
3781 /* A function descriptor used for lazy or local
3782 resolving is initialized such that its high word
3783 contains the output section index in which the
3784 PLT entries are located, and the low word
3785 contains the offset of the lazy PLT entry entry
3786 point into that section. */
3787 bfd_put_32 (output_bfd,
3788 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3789 ? 0
3790 : _frvfdpic_osec_to_segment (output_bfd,
3791 sec
3792 ->output_section),
3793 contents + rel->r_offset + 4);
3794 }
3795 }
3796 check_segment[0] = check_segment[1] = got_segment;
3797 break;
3798
3799 case R_FRV_GPREL12:
3800 case R_FRV_GPRELU12:
3801 case R_FRV_GPREL32:
3802 case R_FRV_GPRELHI:
3803 case R_FRV_GPRELLO:
3804 check_segment[0] = gprel_segment;
3805 check_segment[1] = sec
3806 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3807 : (unsigned)-1;
3808 break;
3809
3810 case R_FRV_GETTLSOFF:
3811 relocation = frvfdpic_plt_section (info)->output_section->vma
3812 + frvfdpic_plt_section (info)->output_offset
3813 + picrel->tlsplt_entry;
3814 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3815 && picrel->tlsdesc_entry);
3816 check_segment[0] = isec_segment;
3817 check_segment[1] = plt_segment;
3818 break;
3819
3820 case R_FRV_GOTTLSDESC12:
3821 case R_FRV_GOTTLSDESCHI:
3822 case R_FRV_GOTTLSDESCLO:
3823 BFD_ASSERT (picrel->tlsdesc_entry);
3824 relocation = picrel->tlsdesc_entry;
3825 check_segment[0] = tls_segment;
3826 check_segment[1] = sec
3827 && ! bfd_is_abs_section (sec)
3828 && ! bfd_is_und_section (sec)
3829 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3830 : tls_segment;
3831 break;
3832
3833 case R_FRV_TLSMOFF12:
3834 case R_FRV_TLSMOFFHI:
3835 case R_FRV_TLSMOFFLO:
3836 case R_FRV_TLSMOFF:
3837 check_segment[0] = tls_segment;
3838 if (! sec)
3839 check_segment[1] = -1;
3840 else if (bfd_is_abs_section (sec)
3841 || bfd_is_und_section (sec))
3842 {
3843 relocation = 0;
3844 check_segment[1] = tls_segment;
3845 }
3846 else if (sec->output_section)
3847 {
3848 relocation -= tls_biased_base (info);
3849 check_segment[1] =
3850 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3851 }
3852 else
3853 check_segment[1] = -1;
3854 break;
3855
3856 case R_FRV_GOTTLSOFF12:
3857 case R_FRV_GOTTLSOFFHI:
3858 case R_FRV_GOTTLSOFFLO:
3859 BFD_ASSERT (picrel->tlsoff_entry);
3860 relocation = picrel->tlsoff_entry;
3861 check_segment[0] = tls_segment;
3862 check_segment[1] = sec
3863 && ! bfd_is_abs_section (sec)
3864 && ! bfd_is_und_section (sec)
3865 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3866 : tls_segment;
3867 break;
3868
3869 case R_FRV_TLSDESC_VALUE:
3870 case R_FRV_TLSOFF:
3871 /* These shouldn't be present in input object files. */
3872 check_segment[0] = check_segment[1] = isec_segment;
3873 break;
3874
3875 case R_FRV_TLSDESC_RELAX:
3876 case R_FRV_GETTLSOFF_RELAX:
3877 case R_FRV_TLSOFF_RELAX:
3878 /* These are just annotations for relaxation, nothing to do
3879 here. */
3880 continue;
3881
3882 default:
3883 check_segment[0] = isec_segment;
3884 check_segment[1] = sec
3885 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3886 : (unsigned)-1;
3887 break;
3888 }
3889
3890 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3891 {
3892 /* If you take this out, remove the #error from fdpic-static-6.d
3893 in the ld testsuite. */
3894 /* This helps catch problems in GCC while we can't do more
3895 than static linking. The idea is to test whether the
3896 input file basename is crt0.o only once. */
3897 if (silence_segment_error == 1)
3898 silence_segment_error =
3899 (strlen (bfd_get_filename (input_bfd)) == 6
3900 && filename_cmp (bfd_get_filename (input_bfd), "crt0.o") == 0)
3901 || (strlen (bfd_get_filename (input_bfd)) > 6
3902 && filename_cmp (bfd_get_filename (input_bfd)
3903 + strlen (bfd_get_filename (input_bfd)) - 7,
3904 "/crt0.o") == 0)
3905 ? -1 : 0;
3906 if (!silence_segment_error
3907 /* We don't want duplicate errors for undefined
3908 symbols. */
3909 && !(picrel && picrel->symndx == -1
3910 && picrel->d.h->root.type == bfd_link_hash_undefined))
3911 {
3912 info->callbacks->einfo
3913 /* xgettext:c-format */
3914 (_("%H: reloc against `%s' references a different segment\n"),
3915 input_bfd, input_section, rel->r_offset, name);
3916 }
3917 if (!silence_segment_error && bfd_link_pic (info))
3918 return FALSE;
3919 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3920 }
3921
3922 switch (r_type)
3923 {
3924 case R_FRV_GOTOFFHI:
3925 case R_FRV_TLSMOFFHI:
3926 /* We need the addend to be applied before we shift the
3927 value right. */
3928 relocation += rel->r_addend;
3929 /* Fall through. */
3930 case R_FRV_GOTHI:
3931 case R_FRV_FUNCDESC_GOTHI:
3932 case R_FRV_FUNCDESC_GOTOFFHI:
3933 case R_FRV_GOTTLSOFFHI:
3934 case R_FRV_GOTTLSDESCHI:
3935 relocation >>= 16;
3936 /* Fall through. */
3937
3938 case R_FRV_GOTLO:
3939 case R_FRV_FUNCDESC_GOTLO:
3940 case R_FRV_GOTOFFLO:
3941 case R_FRV_FUNCDESC_GOTOFFLO:
3942 case R_FRV_GOTTLSOFFLO:
3943 case R_FRV_GOTTLSDESCLO:
3944 case R_FRV_TLSMOFFLO:
3945 relocation &= 0xffff;
3946 break;
3947
3948 default:
3949 break;
3950 }
3951
3952 switch (r_type)
3953 {
3954 case R_FRV_LABEL24:
3955 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3956 break;
3957 /* Fall through. */
3958
3959 /* When referencing a GOT entry, a function descriptor or a
3960 PLT, we don't want the addend to apply to the reference,
3961 but rather to the referenced symbol. The actual entry
3962 will have already been created taking the addend into
3963 account, so cancel it out here. */
3964 case R_FRV_GOT12:
3965 case R_FRV_GOTHI:
3966 case R_FRV_GOTLO:
3967 case R_FRV_FUNCDESC_GOT12:
3968 case R_FRV_FUNCDESC_GOTHI:
3969 case R_FRV_FUNCDESC_GOTLO:
3970 case R_FRV_FUNCDESC_GOTOFF12:
3971 case R_FRV_FUNCDESC_GOTOFFHI:
3972 case R_FRV_FUNCDESC_GOTOFFLO:
3973 case R_FRV_GETTLSOFF:
3974 case R_FRV_GOTTLSDESC12:
3975 case R_FRV_GOTTLSDESCHI:
3976 case R_FRV_GOTTLSDESCLO:
3977 case R_FRV_GOTTLSOFF12:
3978 case R_FRV_GOTTLSOFFHI:
3979 case R_FRV_GOTTLSOFFLO:
3980 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
3981 here, since we do want to apply the addend to the others.
3982 Note that we've applied the addend to GOTOFFHI before we
3983 shifted it right. */
3984 case R_FRV_GOTOFFHI:
3985 case R_FRV_TLSMOFFHI:
3986 relocation -= rel->r_addend;
3987 break;
3988
3989 default:
3990 break;
3991 }
3992
3993 if (r_type == R_FRV_HI16)
3994 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
3995
3996 else if (r_type == R_FRV_LO16)
3997 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
3998
3999 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4000 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4001 contents, relocation);
4002
4003 else if (r_type == R_FRV_GPREL12)
4004 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4005 contents, relocation);
4006
4007 else if (r_type == R_FRV_GPRELU12)
4008 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4009 contents, relocation);
4010
4011 else if (r_type == R_FRV_GPRELLO)
4012 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4013 contents, relocation);
4014
4015 else if (r_type == R_FRV_GPRELHI)
4016 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4017 contents, relocation);
4018
4019 else if (r_type == R_FRV_TLSOFF
4020 || r_type == R_FRV_TLSDESC_VALUE)
4021 r = bfd_reloc_notsupported;
4022
4023 else
4024 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4025 rel, relocation);
4026
4027 if (r != bfd_reloc_ok)
4028 {
4029 const char * msg = (const char *) NULL;
4030
4031 switch (r)
4032 {
4033 case bfd_reloc_overflow:
4034 (*info->callbacks->reloc_overflow)
4035 (info, (h ? &h->root : NULL), name, howto->name,
4036 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4037 break;
4038
4039 case bfd_reloc_undefined:
4040 (*info->callbacks->undefined_symbol)
4041 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4042 break;
4043
4044 case bfd_reloc_outofrange:
4045 msg = _("internal error: out of range error");
4046 break;
4047
4048 case bfd_reloc_notsupported:
4049 msg = _("internal error: unsupported relocation error");
4050 break;
4051
4052 case bfd_reloc_dangerous:
4053 msg = _("internal error: dangerous relocation");
4054 break;
4055
4056 default:
4057 msg = _("internal error: unknown error");
4058 break;
4059 }
4060
4061 if (msg)
4062 {
4063 info->callbacks->einfo
4064 /* xgettext:c-format */
4065 (_("%H: reloc against `%s': %s\n"),
4066 input_bfd, input_section, rel->r_offset, name, msg);
4067 return FALSE;
4068 }
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 && !bfd_link_relocatable (info)
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 = elf_hash_table (info)->sgot;
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 elf_hash_table (info)->sgot = s;
4190 if (s == NULL
4191 || !bfd_set_section_alignment (s, ptralign))
4192 return FALSE;
4193
4194 if (bed->want_got_sym)
4195 {
4196 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4197 (or .got.plt) section. We don't do this in the linker script
4198 because we don't want to define the symbol if we are not creating
4199 a global offset table. */
4200 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4201 elf_hash_table (info)->hgot = h;
4202 if (h == NULL)
4203 return FALSE;
4204
4205 /* Machine-specific: we want the symbol for executables as
4206 well. */
4207 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4208 return FALSE;
4209 }
4210
4211 /* The first bit of the global offset table is the header. */
4212 s->size += bed->got_header_size;
4213
4214 /* This is the machine-specific part. Create and initialize section
4215 data for the got. */
4216 if (IS_FDPIC (abfd))
4217 {
4218 frvfdpic_relocs_info (info) = htab_try_create (1,
4219 frvfdpic_relocs_info_hash,
4220 frvfdpic_relocs_info_eq,
4221 (htab_del) NULL);
4222 if (! frvfdpic_relocs_info (info))
4223 return FALSE;
4224
4225 s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
4226 (flags | SEC_READONLY));
4227 elf_hash_table (info)->srelgot = s;
4228 if (s == NULL
4229 || !bfd_set_section_alignment (s, 2))
4230 return FALSE;
4231
4232 /* Machine-specific. */
4233 s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
4234 (flags | SEC_READONLY));
4235 if (s == NULL
4236 || !bfd_set_section_alignment (s, 2))
4237 return FALSE;
4238
4239 frvfdpic_gotfixup_section (info) = s;
4240 offset = -2048;
4241 flags = BSF_GLOBAL;
4242 }
4243 else
4244 {
4245 offset = 2048;
4246 flags = BSF_GLOBAL | BSF_WEAK;
4247 }
4248
4249 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4250 turns out that we're linking with a different linker script, the
4251 linker script will override it. */
4252 bh = NULL;
4253 if (!(_bfd_generic_link_add_one_symbol
4254 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4255 bed->collect, &bh)))
4256 return FALSE;
4257 h = (struct elf_link_hash_entry *) bh;
4258 h->def_regular = 1;
4259 h->type = STT_OBJECT;
4260 /* h->other = STV_HIDDEN; */ /* Should we? */
4261
4262 /* Machine-specific: we want the symbol for executables as well. */
4263 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4264 return FALSE;
4265
4266 if (!IS_FDPIC (abfd))
4267 return TRUE;
4268
4269 /* FDPIC supports Thread Local Storage, and this may require a
4270 procedure linkage table for TLS PLT entries. */
4271
4272 /* This is mostly copied from
4273 elflink.c:_bfd_elf_create_dynamic_sections(). */
4274
4275 flags = pltflags;
4276 pltflags |= SEC_CODE;
4277 if (bed->plt_not_loaded)
4278 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4279 if (bed->plt_readonly)
4280 pltflags |= SEC_READONLY;
4281
4282 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
4283 if (s == NULL
4284 || !bfd_set_section_alignment (s, bed->plt_alignment))
4285 return FALSE;
4286 /* FRV-specific: remember it. */
4287 frvfdpic_plt_section (info) = s;
4288
4289 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4290 .plt section. */
4291 if (bed->want_plt_sym)
4292 {
4293 h = _bfd_elf_define_linkage_sym (abfd, info, s,
4294 "_PROCEDURE_LINKAGE_TABLE_");
4295 elf_hash_table (info)->hplt = h;
4296 if (h == NULL)
4297 return FALSE;
4298 }
4299
4300 /* FRV-specific: we want rel relocations for the plt. */
4301 s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
4302 flags | SEC_READONLY);
4303 if (s == NULL
4304 || !bfd_set_section_alignment (s, bed->s->log_file_align))
4305 return FALSE;
4306 /* FRV-specific: remember it. */
4307 frvfdpic_pltrel_section (info) = s;
4308
4309 return TRUE;
4310 }
4311
4312 /* Make sure the got and plt sections exist, and that our pointers in
4313 the link hash table point to them. */
4314
4315 static bfd_boolean
4316 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4317 {
4318 /* This is mostly copied from
4319 elflink.c:_bfd_elf_create_dynamic_sections(). */
4320 flagword flags;
4321 asection *s;
4322 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4323
4324 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4325 | SEC_LINKER_CREATED);
4326
4327 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4328 .rel[a].bss sections. */
4329
4330 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4331 way. */
4332 if (! _frv_create_got_section (abfd, info))
4333 return FALSE;
4334
4335 /* FRV-specific: make sure we created everything we wanted. */
4336 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4337 && frvfdpic_gotfixup_section (info)
4338 && frvfdpic_plt_section (info)
4339 && frvfdpic_pltrel_section (info));
4340
4341 if (bed->want_dynbss)
4342 {
4343 /* The .dynbss section is a place to put symbols which are defined
4344 by dynamic objects, are referenced by regular objects, and are
4345 not functions. We must allocate space for them in the process
4346 image and use a R_*_COPY reloc to tell the dynamic linker to
4347 initialize them at run time. The linker script puts the .dynbss
4348 section into the .bss section of the final image. */
4349 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
4350 SEC_ALLOC | SEC_LINKER_CREATED);
4351 if (s == NULL)
4352 return FALSE;
4353
4354 /* The .rel[a].bss section holds copy relocs. This section is not
4355 normally needed. We need to create it here, though, so that the
4356 linker will map it to an output section. We can't just create it
4357 only if we need it, because we will not know whether we need it
4358 until we have seen all the input files, and the first time the
4359 main linker code calls BFD after examining all the input files
4360 (size_dynamic_sections) the input sections have already been
4361 mapped to the output sections. If the section turns out not to
4362 be needed, we can discard it later. We will never need this
4363 section when generating a shared object, since they do not use
4364 copy relocs. */
4365 if (! bfd_link_pic (info))
4366 {
4367 s = bfd_make_section_anyway_with_flags (abfd,
4368 (bed->default_use_rela_p
4369 ? ".rela.bss" : ".rel.bss"),
4370 flags | SEC_READONLY);
4371 if (s == NULL
4372 || !bfd_set_section_alignment (s, bed->s->log_file_align))
4373 return FALSE;
4374 }
4375 }
4376
4377 return TRUE;
4378 }
4379
4380 /* Compute the total GOT and PLT size required by each symbol in each
4381 range. Symbols may require up to 4 words in the GOT: an entry
4382 pointing to the symbol, an entry pointing to its function
4383 descriptor, and a private function descriptors taking two
4384 words. */
4385
4386 static void
4387 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4388 struct _frvfdpic_dynamic_got_info *dinfo)
4389 {
4390 /* Allocate space for a GOT entry pointing to the symbol. */
4391 if (entry->got12)
4392 dinfo->got12 += 4;
4393 else if (entry->gotlos)
4394 dinfo->gotlos += 4;
4395 else if (entry->gothilo)
4396 dinfo->gothilo += 4;
4397 else
4398 entry->relocs32--;
4399 entry->relocs32++;
4400
4401 /* Allocate space for a GOT entry pointing to the function
4402 descriptor. */
4403 if (entry->fdgot12)
4404 dinfo->got12 += 4;
4405 else if (entry->fdgotlos)
4406 dinfo->gotlos += 4;
4407 else if (entry->fdgothilo)
4408 dinfo->gothilo += 4;
4409 else
4410 entry->relocsfd--;
4411 entry->relocsfd++;
4412
4413 /* Decide whether we need a PLT entry, a function descriptor in the
4414 GOT, and a lazy PLT entry for this symbol. */
4415 entry->plt = entry->call
4416 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4417 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4418 entry->privfd = entry->plt
4419 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4420 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4421 && (entry->symndx != -1
4422 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4423 entry->lazyplt = entry->privfd
4424 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4425 && ! (dinfo->info->flags & DF_BIND_NOW)
4426 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4427
4428 /* Allocate space for a function descriptor. */
4429 if (entry->fdgoff12)
4430 dinfo->fd12 += 8;
4431 else if (entry->fdgofflos)
4432 dinfo->fdlos += 8;
4433 else if (entry->privfd && entry->plt)
4434 dinfo->fdplt += 8;
4435 else if (entry->privfd)
4436 dinfo->fdhilo += 8;
4437 else
4438 entry->relocsfdv--;
4439 entry->relocsfdv++;
4440
4441 if (entry->lazyplt)
4442 dinfo->lzplt += 8;
4443 }
4444
4445 /* Compute the total GOT size required by each TLS symbol in each
4446 range. Symbols may require up to 5 words in the GOT: an entry
4447 holding the TLS offset for the symbol, and an entry with a full TLS
4448 descriptor taking 4 words. */
4449
4450 static void
4451 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4452 struct _frvfdpic_dynamic_got_info *dinfo,
4453 bfd_boolean subtract)
4454 {
4455 const int l = subtract ? -1 : 1;
4456
4457 /* Allocate space for a GOT entry with the TLS offset of the
4458 symbol. */
4459 if (entry->tlsoff12)
4460 dinfo->got12 += 4 * l;
4461 else if (entry->tlsofflos)
4462 dinfo->gotlos += 4 * l;
4463 else if (entry->tlsoffhilo)
4464 dinfo->gothilo += 4 * l;
4465 else
4466 entry->relocstlsoff -= l;
4467 entry->relocstlsoff += l;
4468
4469 /* If there's any TLSOFF relocation, mark the output file as not
4470 suitable for dlopening. This mark will remain even if we relax
4471 all such relocations, but this is not a problem, since we'll only
4472 do so for executables, and we definitely don't want anyone
4473 dlopening executables. */
4474 if (entry->relocstlsoff)
4475 dinfo->info->flags |= DF_STATIC_TLS;
4476
4477 /* Allocate space for a TLS descriptor. */
4478 if (entry->tlsdesc12)
4479 dinfo->tlsd12 += 8 * l;
4480 else if (entry->tlsdesclos)
4481 dinfo->tlsdlos += 8 * l;
4482 else if (entry->tlsplt)
4483 dinfo->tlsdplt += 8 * l;
4484 else if (entry->tlsdeschilo)
4485 dinfo->tlsdhilo += 8 * l;
4486 else
4487 entry->relocstlsd -= l;
4488 entry->relocstlsd += l;
4489 }
4490
4491 /* Compute the number of dynamic relocations and fixups that a symbol
4492 requires, and add (or subtract) from the grand and per-symbol
4493 totals. */
4494
4495 static void
4496 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4497 struct _frvfdpic_dynamic_got_info *dinfo,
4498 bfd_boolean subtract)
4499 {
4500 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4501
4502 if (!bfd_link_pde (dinfo->info))
4503 {
4504 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4505 + entry->relocstlsd;
4506
4507 /* In the executable, TLS relocations to symbols that bind
4508 locally (including those that resolve to global TLS offsets)
4509 are resolved immediately, without any need for fixups or
4510 dynamic relocations. In shared libraries, however, we must
4511 emit dynamic relocations even for local symbols, because we
4512 don't know the module id the library is going to get at
4513 run-time, nor its TLS base offset. */
4514 if (!bfd_link_executable (dinfo->info)
4515 || (entry->symndx == -1
4516 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4517 relocs += entry->relocstlsoff;
4518 }
4519 else
4520 {
4521 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4522 {
4523 if (entry->symndx != -1
4524 || entry->d.h->root.type != bfd_link_hash_undefweak)
4525 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4526 fixups += entry->relocstlsd;
4527 tlsrets += entry->relocstlsd;
4528 }
4529 else
4530 {
4531 relocs += entry->relocs32 + entry->relocsfdv
4532 + entry->relocstlsoff + entry->relocstlsd;
4533 }
4534
4535 if (entry->symndx != -1
4536 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4537 {
4538 if (entry->symndx != -1
4539 || entry->d.h->root.type != bfd_link_hash_undefweak)
4540 fixups += entry->relocsfd;
4541 }
4542 else
4543 relocs += entry->relocsfd;
4544 }
4545
4546 if (subtract)
4547 {
4548 relocs = - relocs;
4549 fixups = - fixups;
4550 tlsrets = - tlsrets;
4551 }
4552
4553 entry->dynrelocs += relocs;
4554 entry->fixups += fixups;
4555 dinfo->relocs += relocs;
4556 dinfo->fixups += fixups;
4557 dinfo->tls_ret_refs += tlsrets;
4558 }
4559
4560 /* Look for opportunities to relax TLS relocations. We can assume
4561 we're linking the main executable or a static-tls library, since
4562 otherwise we wouldn't have got here. When relaxing, we have to
4563 first undo any previous accounting of TLS uses of fixups, dynamic
4564 relocations, GOT and PLT entries. */
4565
4566 static void
4567 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4568 struct _frvfdpic_dynamic_got_info *dinfo,
4569 bfd_boolean relaxing)
4570 {
4571 bfd_boolean changed = ! relaxing;
4572
4573 BFD_ASSERT (bfd_link_executable (dinfo->info)
4574 || (dinfo->info->flags & DF_STATIC_TLS));
4575
4576 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4577 {
4578 if (! changed)
4579 {
4580 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4581 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4582 changed = TRUE;
4583 }
4584
4585 /* When linking an executable, we can always decay GOTTLSDESC to
4586 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4587 When linking a static-tls shared library, using TLSMOFF is
4588 not an option, but we can still use GOTTLSOFF. When decaying
4589 to GOTTLSOFF, we must keep the GOT entry in range. We know
4590 it has to fit because we'll be trading the 4 words of hte TLS
4591 descriptor for a single word in the same range. */
4592 if (! bfd_link_executable (dinfo->info)
4593 || (entry->symndx == -1
4594 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4595 {
4596 entry->tlsoff12 |= entry->tlsdesc12;
4597 entry->tlsofflos |= entry->tlsdesclos;
4598 entry->tlsoffhilo |= entry->tlsdeschilo;
4599 }
4600
4601 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4602 }
4603
4604 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4605 main executable. We have to check whether the symbol's TLSOFF is
4606 in range for a setlos. For symbols with a hash entry, we can
4607 determine exactly what to do; for others locals, we don't have
4608 addresses handy, so we use the size of the TLS section as an
4609 approximation. If we get it wrong, we'll retain a GOT entry
4610 holding the TLS offset (without dynamic relocations or fixups),
4611 but we'll still optimize away the loads from it. Since TLS sizes
4612 are generally very small, it's probably not worth attempting to
4613 do better than this. */
4614 if ((entry->tlsplt
4615 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4616 && bfd_link_executable (dinfo->info) && relaxing
4617 && ((entry->symndx == -1
4618 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4619 /* The above may hold for an undefweak TLS symbol, so make
4620 sure we don't have this case before accessing def.value
4621 and def.section. */
4622 && (entry->d.h->root.type == bfd_link_hash_undefweak
4623 || (bfd_vma)(entry->d.h->root.u.def.value
4624 + (entry->d.h->root.u.def.section
4625 ->output_section->vma)
4626 + entry->d.h->root.u.def.section->output_offset
4627 + entry->addend
4628 - tls_biased_base (dinfo->info)
4629 + 32768) < (bfd_vma)65536))
4630 || (entry->symndx != -1
4631 && (elf_hash_table (dinfo->info)->tls_sec->size
4632 + entry->addend < 32768 + FRVFDPIC_TLS_BIAS))))
4633 {
4634 if (! changed)
4635 {
4636 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4637 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4638 changed = TRUE;
4639 }
4640
4641 entry->tlsplt =
4642 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4643 }
4644
4645 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4646 have a #gottlsoff12 relocation for this entry, or if we can fit
4647 one more in the 12-bit (and 16-bit) ranges. */
4648 if (entry->tlsplt
4649 && (entry->tlsoff12
4650 || (relaxing
4651 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4652 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4653 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4654 <= 65536 - 12 - 4))))
4655 {
4656 if (! changed)
4657 {
4658 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4659 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4660 changed = TRUE;
4661 }
4662
4663 entry->tlsoff12 = 1;
4664 entry->tlsplt = 0;
4665 }
4666
4667 if (changed)
4668 {
4669 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4670 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4671 }
4672
4673 return;
4674 }
4675
4676 /* Compute the total GOT and PLT size required by each symbol in each range. *
4677 Symbols may require up to 4 words in the GOT: an entry pointing to
4678 the symbol, an entry pointing to its function descriptor, and a
4679 private function descriptors taking two words. */
4680
4681 static int
4682 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4683 {
4684 struct frvfdpic_relocs_info *entry = *entryp;
4685 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4686
4687 _frvfdpic_count_nontls_entries (entry, dinfo);
4688
4689 if (bfd_link_executable (dinfo->info)
4690 || (dinfo->info->flags & DF_STATIC_TLS))
4691 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4692 else
4693 {
4694 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4695 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4696 }
4697
4698 return 1;
4699 }
4700
4701 /* Determine the positive and negative ranges to be used by each
4702 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4703 double-word boundary, are the minimum (negative) and maximum
4704 (positive) GOT offsets already used by previous ranges, except for
4705 an ODD entry that may have been left behind. GOT and FD indicate
4706 the size of GOT entries and function descriptors that must be
4707 placed within the range from -WRAP to WRAP. If there's room left,
4708 up to FDPLT bytes should be reserved for additional function
4709 descriptors. */
4710
4711 inline static bfd_signed_vma
4712 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4713 bfd_signed_vma fdcur,
4714 bfd_signed_vma odd,
4715 bfd_signed_vma cur,
4716 bfd_vma got,
4717 bfd_vma fd,
4718 bfd_vma fdplt,
4719 bfd_vma tlsd,
4720 bfd_vma tlsdplt,
4721 bfd_vma wrap)
4722 {
4723 bfd_signed_vma wrapmin = -wrap;
4724 const bfd_vma tdescsz = 8;
4725
4726 /* Start at the given initial points. */
4727 gad->fdcur = fdcur;
4728 gad->cur = cur;
4729
4730 /* If we had an incoming odd word and we have any got entries that
4731 are going to use it, consume it, otherwise leave gad->odd at
4732 zero. We might force gad->odd to zero and return the incoming
4733 odd such that it is used by the next range, but then GOT entries
4734 might appear to be out of order and we wouldn't be able to
4735 shorten the GOT by one word if it turns out to end with an
4736 unpaired GOT entry. */
4737 if (odd && got)
4738 {
4739 gad->odd = odd;
4740 got -= 4;
4741 odd = 0;
4742 }
4743 else
4744 gad->odd = 0;
4745
4746 /* If we're left with an unpaired GOT entry, compute its location
4747 such that we can return it. Otherwise, if got doesn't require an
4748 odd number of words here, either odd was already zero in the
4749 block above, or it was set to zero because got was non-zero, or
4750 got was already zero. In the latter case, we want the value of
4751 odd to carry over to the return statement, so we don't want to
4752 reset odd unless the condition below is true. */
4753 if (got & 4)
4754 {
4755 odd = cur + got;
4756 got += 4;
4757 }
4758
4759 /* Compute the tentative boundaries of this range. */
4760 gad->max = cur + got;
4761 gad->min = fdcur - fd;
4762 gad->fdplt = 0;
4763
4764 /* If function descriptors took too much space, wrap some of them
4765 around. */
4766 if (gad->min < wrapmin)
4767 {
4768 gad->max += wrapmin - gad->min;
4769 gad->tmin = gad->min = wrapmin;
4770 }
4771
4772 /* If GOT entries took too much space, wrap some of them around.
4773 This may well cause gad->min to become lower than wrapmin. This
4774 will cause a relocation overflow later on, so we don't have to
4775 report it here . */
4776 if ((bfd_vma) gad->max > wrap)
4777 {
4778 gad->min -= gad->max - wrap;
4779 gad->max = wrap;
4780 }
4781
4782 /* Add TLS descriptors. */
4783 gad->tmax = gad->max + tlsd;
4784 gad->tmin = gad->min;
4785 gad->tlsdplt = 0;
4786
4787 /* If TLS descriptors took too much space, wrap an integral number
4788 of them around. */
4789 if ((bfd_vma) gad->tmax > wrap)
4790 {
4791 bfd_vma wrapsize = gad->tmax - wrap;
4792
4793 wrapsize += tdescsz / 2;
4794 wrapsize &= ~ tdescsz / 2;
4795
4796 gad->tmin -= wrapsize;
4797 gad->tmax -= wrapsize;
4798 }
4799
4800 /* If there is space left and we have function descriptors
4801 referenced in PLT entries that could take advantage of shorter
4802 offsets, place them now. */
4803 if (fdplt && gad->tmin > wrapmin)
4804 {
4805 bfd_vma fds;
4806
4807 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4808 fds = gad->tmin - wrapmin;
4809 else
4810 fds = fdplt;
4811
4812 fdplt -= fds;
4813 gad->min -= fds;
4814 gad->tmin -= fds;
4815 gad->fdplt += fds;
4816 }
4817
4818 /* If there is more space left, try to place some more function
4819 descriptors for PLT entries. */
4820 if (fdplt && (bfd_vma) gad->tmax < wrap)
4821 {
4822 bfd_vma fds;
4823
4824 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4825 fds = wrap - gad->tmax;
4826 else
4827 fds = fdplt;
4828
4829 fdplt -= fds;
4830 gad->max += fds;
4831 gad->tmax += fds;
4832 gad->fdplt += fds;
4833 }
4834
4835 /* If there is space left and we have TLS descriptors referenced in
4836 PLT entries that could take advantage of shorter offsets, place
4837 them now. */
4838 if (tlsdplt && gad->tmin > wrapmin)
4839 {
4840 bfd_vma tlsds;
4841
4842 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4843 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4844 else
4845 tlsds = tlsdplt;
4846
4847 tlsdplt -= tlsds;
4848 gad->tmin -= tlsds;
4849 gad->tlsdplt += tlsds;
4850 }
4851
4852 /* If there is more space left, try to place some more TLS
4853 descriptors for PLT entries. Although we could try to fit an
4854 additional TLS descriptor with half of it just before before the
4855 wrap point and another right past the wrap point, this might
4856 cause us to run out of space for the next region, so don't do
4857 it. */
4858 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4859 {
4860 bfd_vma tlsds;
4861
4862 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4863 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4864 else
4865 tlsds = tlsdplt;
4866
4867 tlsdplt -= tlsds;
4868 gad->tmax += tlsds;
4869 gad->tlsdplt += tlsds;
4870 }
4871
4872 /* If odd was initially computed as an offset past the wrap point,
4873 wrap it around. */
4874 if (odd > gad->max)
4875 odd = gad->min + odd - gad->max;
4876
4877 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4878 before returning, so do it here too. This guarantees that,
4879 should cur and fdcur meet at the wrap point, they'll both be
4880 equal to min. */
4881 if (gad->cur == gad->max)
4882 gad->cur = gad->min;
4883
4884 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
4885 gad->tcur = gad->max;
4886 if (gad->tcur == gad->tmax)
4887 gad->tcur = gad->tmin;
4888
4889 return odd;
4890 }
4891
4892 /* Compute the location of the next GOT entry, given the allocation
4893 data for a range. */
4894
4895 inline static bfd_signed_vma
4896 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4897 {
4898 bfd_signed_vma ret;
4899
4900 if (gad->odd)
4901 {
4902 /* If there was an odd word left behind, use it. */
4903 ret = gad->odd;
4904 gad->odd = 0;
4905 }
4906 else
4907 {
4908 /* Otherwise, use the word pointed to by cur, reserve the next
4909 as an odd word, and skip to the next pair of words, possibly
4910 wrapping around. */
4911 ret = gad->cur;
4912 gad->odd = gad->cur + 4;
4913 gad->cur += 8;
4914 if (gad->cur == gad->max)
4915 gad->cur = gad->min;
4916 }
4917
4918 return ret;
4919 }
4920
4921 /* Compute the location of the next function descriptor entry in the
4922 GOT, given the allocation data for a range. */
4923
4924 inline static bfd_signed_vma
4925 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4926 {
4927 /* If we're at the bottom, wrap around, and only then allocate the
4928 next pair of words. */
4929 if (gad->fdcur == gad->min)
4930 gad->fdcur = gad->max;
4931 return gad->fdcur -= 8;
4932 }
4933
4934 /* Compute the location of the next TLS descriptor entry in the GOT,
4935 given the allocation data for a range. */
4936 inline static bfd_signed_vma
4937 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4938 {
4939 bfd_signed_vma ret;
4940
4941 ret = gad->tcur;
4942
4943 gad->tcur += 8;
4944
4945 /* If we're at the top of the region, wrap around to the bottom. */
4946 if (gad->tcur == gad->tmax)
4947 gad->tcur = gad->tmin;
4948
4949 return ret;
4950 }
4951
4952 /* Assign GOT offsets for every GOT entry and function descriptor.
4953 Doing everything in a single pass is tricky. */
4954
4955 static int
4956 _frvfdpic_assign_got_entries (void **entryp, void *info_)
4957 {
4958 struct frvfdpic_relocs_info *entry = *entryp;
4959 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
4960
4961 if (entry->got12)
4962 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4963 else if (entry->gotlos)
4964 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4965 else if (entry->gothilo)
4966 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4967
4968 if (entry->fdgot12)
4969 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4970 else if (entry->fdgotlos)
4971 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4972 else if (entry->fdgothilo)
4973 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4974
4975 if (entry->fdgoff12)
4976 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4977 else if (entry->plt && dinfo->got12.fdplt)
4978 {
4979 dinfo->got12.fdplt -= 8;
4980 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4981 }
4982 else if (entry->fdgofflos)
4983 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4984 else if (entry->plt && dinfo->gotlos.fdplt)
4985 {
4986 dinfo->gotlos.fdplt -= 8;
4987 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4988 }
4989 else if (entry->plt)
4990 {
4991 dinfo->gothilo.fdplt -= 8;
4992 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
4993 }
4994 else if (entry->privfd)
4995 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
4996
4997 if (entry->tlsoff12)
4998 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4999 else if (entry->tlsofflos)
5000 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5001 else if (entry->tlsoffhilo)
5002 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5003
5004 if (entry->tlsdesc12)
5005 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5006 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5007 {
5008 dinfo->got12.tlsdplt -= 8;
5009 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5010 }
5011 else if (entry->tlsdesclos)
5012 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5013 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5014 {
5015 dinfo->gotlos.tlsdplt -= 8;
5016 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5017 }
5018 else if (entry->tlsplt)
5019 {
5020 dinfo->gothilo.tlsdplt -= 8;
5021 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5022 }
5023 else if (entry->tlsdeschilo)
5024 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5025
5026 return 1;
5027 }
5028
5029 /* Assign GOT offsets to private function descriptors used by PLT
5030 entries (or referenced by 32-bit offsets), as well as PLT entries
5031 and lazy PLT entries. */
5032
5033 static int
5034 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5035 {
5036 struct frvfdpic_relocs_info *entry = *entryp;
5037 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5038
5039 if (entry->privfd)
5040 BFD_ASSERT (entry->fd_entry);
5041
5042 if (entry->plt)
5043 {
5044 int size;
5045
5046 /* We use the section's raw size to mark the location of the
5047 next PLT entry. */
5048 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5049
5050 /* Figure out the length of this PLT entry based on the
5051 addressing mode we need to reach the function descriptor. */
5052 BFD_ASSERT (entry->fd_entry);
5053 if (entry->fd_entry >= -(1 << (12 - 1))
5054 && entry->fd_entry < (1 << (12 - 1)))
5055 size = 8;
5056 else if (entry->fd_entry >= -(1 << (16 - 1))
5057 && entry->fd_entry < (1 << (16 - 1)))
5058 size = 12;
5059 else
5060 size = 16;
5061
5062 frvfdpic_plt_section (dinfo->g.info)->size += size;
5063 }
5064
5065 if (entry->lazyplt)
5066 {
5067 entry->lzplt_entry = dinfo->g.lzplt;
5068 dinfo->g.lzplt += 8;
5069 /* If this entry is the one that gets the resolver stub, account
5070 for the additional instruction. */
5071 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5072 == FRVFDPIC_LZPLT_RESOLV_LOC)
5073 dinfo->g.lzplt += 4;
5074 }
5075
5076 if (entry->tlsplt)
5077 {
5078 int size;
5079
5080 entry->tlsplt_entry
5081 = frvfdpic_plt_section (dinfo->g.info)->size;
5082
5083 if (bfd_link_executable (dinfo->g.info)
5084 && (entry->symndx != -1
5085 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5086 {
5087 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5088 /* FIXME: here we use the size of the TLS section
5089 as an upper bound for the value of the TLS
5090 symbol, because we may not know the exact value
5091 yet. If we get it wrong, we'll just waste a
5092 word in the PLT, and we should never get even
5093 close to 32 KiB of TLS anyway. */
5094 && elf_hash_table (dinfo->g.info)->tls_sec
5095 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5096 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5097 size = 8;
5098 else
5099 size = 12;
5100 }
5101 else if (entry->tlsoff_entry)
5102 {
5103 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5104 && entry->tlsoff_entry < (1 << (12 - 1)))
5105 size = 8;
5106 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5107 && entry->tlsoff_entry < (1 << (16 - 1)))
5108 size = 12;
5109 else
5110 size = 16;
5111 }
5112 else
5113 {
5114 BFD_ASSERT (entry->tlsdesc_entry);
5115
5116 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5117 && entry->tlsdesc_entry < (1 << (12 - 1)))
5118 size = 8;
5119 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5120 && entry->tlsdesc_entry < (1 << (16 - 1)))
5121 size = 12;
5122 else
5123 size = 16;
5124 }
5125
5126 frvfdpic_plt_section (dinfo->g.info)->size += size;
5127 }
5128
5129 return 1;
5130 }
5131
5132 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5133 _frvfdpic_assign_plt_entries. */
5134
5135 static int
5136 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5137 {
5138 struct frvfdpic_relocs_info *entry = *entryp;
5139
5140 entry->got_entry = 0;
5141 entry->fdgot_entry = 0;
5142 entry->fd_entry = 0;
5143 entry->plt_entry = (bfd_vma)-1;
5144 entry->lzplt_entry = (bfd_vma)-1;
5145 entry->tlsoff_entry = 0;
5146 entry->tlsdesc_entry = 0;
5147 entry->tlsplt_entry = (bfd_vma)-1;
5148
5149 return 1;
5150 }
5151
5152 /* Follow indirect and warning hash entries so that each got entry
5153 points to the final symbol definition. P must point to a pointer
5154 to the hash table we're traversing. Since this traversal may
5155 modify the hash table, we set this pointer to NULL to indicate
5156 we've made a potentially-destructive change to the hash table, so
5157 the traversal must be restarted. */
5158 static int
5159 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5160 {
5161 struct frvfdpic_relocs_info *entry = *entryp;
5162 htab_t *htab = p;
5163
5164 if (entry->symndx == -1)
5165 {
5166 struct elf_link_hash_entry *h = entry->d.h;
5167 struct frvfdpic_relocs_info *oentry;
5168
5169 while (h->root.type == bfd_link_hash_indirect
5170 || h->root.type == bfd_link_hash_warning)
5171 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5172
5173 if (entry->d.h == h)
5174 return 1;
5175
5176 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5177 NO_INSERT);
5178
5179 if (oentry)
5180 {
5181 /* Merge the two entries. */
5182 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5183 htab_clear_slot (*htab, entryp);
5184 return 1;
5185 }
5186
5187 entry->d.h = h;
5188
5189 /* If we can't find this entry with the new bfd hash, re-insert
5190 it, and get the traversal restarted. */
5191 if (! htab_find (*htab, entry))
5192 {
5193 htab_clear_slot (*htab, entryp);
5194 entryp = htab_find_slot (*htab, entry, INSERT);
5195 if (! *entryp)
5196 *entryp = entry;
5197 /* Abort the traversal, since the whole table may have
5198 moved, and leave it up to the parent to restart the
5199 process. */
5200 *(htab_t *)p = NULL;
5201 return 0;
5202 }
5203 }
5204
5205 return 1;
5206 }
5207
5208 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5209 section and the rofixup section. Assign locations for GOT and PLT
5210 entries. */
5211
5212 static bfd_boolean
5213 _frvfdpic_size_got_plt (bfd *output_bfd,
5214 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5215 {
5216 bfd_signed_vma odd;
5217 bfd_vma limit, tlslimit;
5218 struct bfd_link_info *info = gpinfop->g.info;
5219 bfd *dynobj = elf_hash_table (info)->dynobj;
5220
5221 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5222 sizeof (gpinfop->g));
5223
5224 odd = 12;
5225 /* Compute the total size taken by entries in the 12-bit and 16-bit
5226 ranges, to tell how many PLT function descriptors we can bring
5227 into the 12-bit range without causing the 16-bit range to
5228 overflow. */
5229 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5230 + gpinfop->g.fd12 + gpinfop->g.fdlos
5231 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5232 if (limit < (bfd_vma)1 << 16)
5233 limit = ((bfd_vma)1 << 16) - limit;
5234 else
5235 limit = 0;
5236 if (gpinfop->g.fdplt < limit)
5237 {
5238 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5239 limit = gpinfop->g.fdplt;
5240 }
5241 else
5242 tlslimit = 0;
5243 if (gpinfop->g.tlsdplt < tlslimit)
5244 tlslimit = gpinfop->g.tlsdplt;
5245
5246 /* Determine the ranges of GOT offsets that we can use for each
5247 range of addressing modes. */
5248 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5249 0,
5250 odd,
5251 16,
5252 gpinfop->g.got12,
5253 gpinfop->g.fd12,
5254 limit,
5255 gpinfop->g.tlsd12,
5256 tlslimit,
5257 (bfd_vma)1 << (12-1));
5258 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5259 gpinfop->got12.tmin,
5260 odd,
5261 gpinfop->got12.tmax,
5262 gpinfop->g.gotlos,
5263 gpinfop->g.fdlos,
5264 gpinfop->g.fdplt
5265 - gpinfop->got12.fdplt,
5266 gpinfop->g.tlsdlos,
5267 gpinfop->g.tlsdplt
5268 - gpinfop->got12.tlsdplt,
5269 (bfd_vma)1 << (16-1));
5270 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5271 gpinfop->gotlos.tmin,
5272 odd,
5273 gpinfop->gotlos.tmax,
5274 gpinfop->g.gothilo,
5275 gpinfop->g.fdhilo,
5276 gpinfop->g.fdplt
5277 - gpinfop->got12.fdplt
5278 - gpinfop->gotlos.fdplt,
5279 gpinfop->g.tlsdhilo,
5280 gpinfop->g.tlsdplt
5281 - gpinfop->got12.tlsdplt
5282 - gpinfop->gotlos.tlsdplt,
5283 (bfd_vma)1 << (32-1));
5284
5285 /* Now assign (most) GOT offsets. */
5286 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5287 gpinfop);
5288
5289 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5290 - gpinfop->gothilo.tmin
5291 /* If an odd word is the last word of the GOT, we don't need this
5292 word to be part of the GOT. */
5293 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5294 if (frvfdpic_got_section (info)->size == 0)
5295 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5296 else if (frvfdpic_got_section (info)->size == 12
5297 && ! elf_hash_table (info)->dynamic_sections_created)
5298 {
5299 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5300 frvfdpic_got_section (info)->size = 0;
5301 }
5302 /* This will be non-NULL during relaxation. The assumption is that
5303 the size of one of these sections will never grow, only shrink,
5304 so we can use the larger buffer we allocated before. */
5305 else if (frvfdpic_got_section (info)->contents == NULL)
5306 {
5307 frvfdpic_got_section (info)->contents =
5308 (bfd_byte *) bfd_zalloc (dynobj,
5309 frvfdpic_got_section (info)->size);
5310 if (frvfdpic_got_section (info)->contents == NULL)
5311 return FALSE;
5312 }
5313
5314 if (frvfdpic_gotrel_section (info))
5315 /* Subtract the number of lzplt entries, since those will generate
5316 relocations in the pltrel section. */
5317 frvfdpic_gotrel_section (info)->size =
5318 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5319 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5320 else
5321 BFD_ASSERT (gpinfop->g.relocs == 0);
5322 if (frvfdpic_gotrel_section (info)->size == 0)
5323 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5324 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5325 {
5326 frvfdpic_gotrel_section (info)->contents =
5327 (bfd_byte *) bfd_zalloc (dynobj,
5328 frvfdpic_gotrel_section (info)->size);
5329 if (frvfdpic_gotrel_section (info)->contents == NULL)
5330 return FALSE;
5331 }
5332
5333 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5334 if (frvfdpic_gotfixup_section (info)->size == 0)
5335 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5336 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5337 {
5338 frvfdpic_gotfixup_section (info)->contents =
5339 (bfd_byte *) bfd_zalloc (dynobj,
5340 frvfdpic_gotfixup_section (info)->size);
5341 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5342 return FALSE;
5343 }
5344
5345 if (frvfdpic_pltrel_section (info))
5346 {
5347 frvfdpic_pltrel_section (info)->size =
5348 gpinfop->g.lzplt / 8
5349 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5350 if (frvfdpic_pltrel_section (info)->size == 0)
5351 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5352 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5353 {
5354 frvfdpic_pltrel_section (info)->contents =
5355 (bfd_byte *) bfd_zalloc (dynobj,
5356 frvfdpic_pltrel_section (info)->size);
5357 if (frvfdpic_pltrel_section (info)->contents == NULL)
5358 return FALSE;
5359 }
5360 }
5361
5362 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5363 such that there's room for the additional instruction needed to
5364 call the resolver. Since _frvfdpic_assign_got_entries didn't
5365 account for them, our block size is 4 bytes smaller than the real
5366 block size. */
5367 if (frvfdpic_plt_section (info))
5368 {
5369 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5370 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5371 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5372 }
5373
5374 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5375 actually assign lazy PLT entries addresses. */
5376 gpinfop->g.lzplt = 0;
5377
5378 /* Save information that we're going to need to generate GOT and PLT
5379 entries. */
5380 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5381
5382 if (get_elf_backend_data (output_bfd)->want_got_sym)
5383 elf_hash_table (info)->hgot->root.u.def.value
5384 = frvfdpic_got_initial_offset (info);
5385
5386 if (frvfdpic_plt_section (info))
5387 frvfdpic_plt_initial_offset (info) =
5388 frvfdpic_plt_section (info)->size;
5389
5390 /* Allocate a ret statement at plt_initial_offset, to be used by
5391 locally-resolved TLS descriptors. */
5392 if (gpinfop->g.tls_ret_refs)
5393 frvfdpic_plt_section (info)->size += 4;
5394
5395 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5396 gpinfop);
5397
5398 /* Allocate the PLT section contents only after
5399 _frvfdpic_assign_plt_entries has a chance to add the size of the
5400 non-lazy PLT entries. */
5401 if (frvfdpic_plt_section (info))
5402 {
5403 if (frvfdpic_plt_section (info)->size == 0)
5404 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5405 else if (frvfdpic_plt_section (info)->contents == NULL)
5406 {
5407 frvfdpic_plt_section (info)->contents =
5408 (bfd_byte *) bfd_zalloc (dynobj,
5409 frvfdpic_plt_section (info)->size);
5410 if (frvfdpic_plt_section (info)->contents == NULL)
5411 return FALSE;
5412 }
5413 }
5414
5415 return TRUE;
5416 }
5417
5418 /* Set the sizes of the dynamic sections. */
5419
5420 static bfd_boolean
5421 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5422 struct bfd_link_info *info)
5423 {
5424 bfd *dynobj;
5425 asection *s;
5426 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5427
5428 dynobj = elf_hash_table (info)->dynobj;
5429 BFD_ASSERT (dynobj != NULL);
5430
5431 if (elf_hash_table (info)->dynamic_sections_created)
5432 {
5433 /* Set the contents of the .interp section to the interpreter. */
5434 if (bfd_link_executable (info) && !info->nointerp)
5435 {
5436 s = bfd_get_linker_section (dynobj, ".interp");
5437 BFD_ASSERT (s != NULL);
5438 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5439 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5440 }
5441 }
5442
5443 memset (&gpinfo, 0, sizeof (gpinfo));
5444 gpinfo.g.info = info;
5445
5446 for (;;)
5447 {
5448 htab_t relocs = frvfdpic_relocs_info (info);
5449
5450 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5451
5452 if (relocs == frvfdpic_relocs_info (info))
5453 break;
5454 }
5455
5456 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5457 &gpinfo.g);
5458
5459 /* Allocate space to save the summary information, we're going to
5460 use it if we're doing relaxations. */
5461 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5462
5463 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5464 return FALSE;
5465
5466 if (elf_hash_table (info)->dynamic_sections_created)
5467 {
5468 if (frvfdpic_got_section (info)->size)
5469 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5470 return FALSE;
5471
5472 if (frvfdpic_pltrel_section (info)->size)
5473 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5474 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5475 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5476 return FALSE;
5477
5478 if (frvfdpic_gotrel_section (info)->size)
5479 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5480 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5481 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5482 sizeof (Elf32_External_Rel)))
5483 return FALSE;
5484 }
5485
5486 return TRUE;
5487 }
5488
5489 static bfd_boolean
5490 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5491 struct bfd_link_info *info)
5492 {
5493 if (!bfd_link_relocatable (info)
5494 && !bfd_elf_stack_segment_size (output_bfd, info,
5495 "__stacksize", DEFAULT_STACK_SIZE))
5496 return FALSE;
5497
5498 return TRUE;
5499 }
5500
5501 /* Check whether any of the relocations was optimized away, and
5502 subtract it from the relocation or fixup count. */
5503 static bfd_boolean
5504 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5505 struct bfd_link_info *info,
5506
5507 bfd_boolean *changed)
5508 {
5509 Elf_Internal_Shdr *symtab_hdr;
5510 struct elf_link_hash_entry **sym_hashes;
5511 Elf_Internal_Rela *rel, *erel;
5512
5513 if ((sec->flags & SEC_RELOC) == 0
5514 || sec->reloc_count == 0)
5515 return TRUE;
5516
5517 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5518 sym_hashes = elf_sym_hashes (abfd);
5519
5520 rel = elf_section_data (sec)->relocs;
5521
5522 /* Now examine each relocation. */
5523 for (erel = rel + sec->reloc_count; rel < erel; rel++)
5524 {
5525 struct elf_link_hash_entry *h;
5526 unsigned long r_symndx;
5527 struct frvfdpic_relocs_info *picrel;
5528 struct _frvfdpic_dynamic_got_info *dinfo;
5529
5530 if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5531 && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5532 continue;
5533
5534 if (_bfd_elf_section_offset (sec->output_section->owner,
5535 info, sec, rel->r_offset)
5536 != (bfd_vma)-1)
5537 continue;
5538
5539 r_symndx = ELF32_R_SYM (rel->r_info);
5540 if (r_symndx < symtab_hdr->sh_info)
5541 h = NULL;
5542 else
5543 {
5544 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5545 while (h->root.type == bfd_link_hash_indirect
5546 || h->root.type == bfd_link_hash_warning)
5547 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5548 }
5549
5550 if (h != NULL)
5551 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5552 abfd, h,
5553 rel->r_addend, NO_INSERT);
5554 else
5555 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5556 abfd, r_symndx,
5557 rel->r_addend, NO_INSERT);
5558
5559 if (! picrel)
5560 return FALSE;
5561
5562 *changed = TRUE;
5563 dinfo = frvfdpic_dynamic_got_plt_info (info);
5564
5565 _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5566 if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5567 picrel->relocs32--;
5568 else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5569 picrel->relocsfd--;
5570 _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5571 }
5572
5573 return TRUE;
5574 }
5575
5576 static bfd_boolean
5577 frvfdpic_elf_discard_info (bfd *ibfd,
5578 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5579 struct bfd_link_info *info)
5580 {
5581 bfd_boolean changed = FALSE;
5582 asection *s;
5583 bfd *obfd = NULL;
5584
5585 /* Account for relaxation of .eh_frame section. */
5586 for (s = ibfd->sections; s; s = s->next)
5587 if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
5588 {
5589 if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5590 return FALSE;
5591 obfd = s->output_section->owner;
5592 }
5593
5594 if (changed)
5595 {
5596 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5597
5598 memset (&gpinfo, 0, sizeof (gpinfo));
5599 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5600 sizeof (gpinfo.g));
5601
5602 /* Clear GOT and PLT assignments. */
5603 htab_traverse (frvfdpic_relocs_info (info),
5604 _frvfdpic_reset_got_plt_entries,
5605 NULL);
5606
5607 if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5608 return FALSE;
5609 }
5610
5611 return TRUE;
5612 }
5613
5614 /* Look for opportunities to relax TLS relocations. We can assume
5615 we're linking the main executable or a static-tls library, since
5616 otherwise we wouldn't have got here. */
5617
5618 static int
5619 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5620 {
5621 struct frvfdpic_relocs_info *entry = *entryp;
5622 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5623
5624 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5625
5626 return 1;
5627 }
5628
5629 static bfd_boolean
5630 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5631 struct bfd_link_info *info, bfd_boolean *again)
5632 {
5633 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5634
5635 if (bfd_link_relocatable (info))
5636 (*info->callbacks->einfo)
5637 (_("%P%F: --relax and -r may not be used together\n"));
5638
5639 /* If we return early, we didn't change anything. */
5640 *again = FALSE;
5641
5642 /* We'll do our thing when requested to relax the GOT section. */
5643 if (sec != frvfdpic_got_section (info))
5644 return TRUE;
5645
5646 /* We can only relax when linking the main executable or a library
5647 that can't be dlopened. */
5648 if (! bfd_link_executable (info) && ! (info->flags & DF_STATIC_TLS))
5649 return TRUE;
5650
5651 /* If there isn't a TLS section for this binary, we can't do
5652 anything about its TLS relocations (it probably doesn't have
5653 any. */
5654 if (elf_hash_table (info)->tls_sec == NULL)
5655 return TRUE;
5656
5657 memset (&gpinfo, 0, sizeof (gpinfo));
5658 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5659
5660 /* Now look for opportunities to relax, adjusting the GOT usage
5661 as needed. */
5662 htab_traverse (frvfdpic_relocs_info (info),
5663 _frvfdpic_relax_got_plt_entries,
5664 &gpinfo.g);
5665
5666 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5667 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5668 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5669 {
5670 /* Clear GOT and PLT assignments. */
5671 htab_traverse (frvfdpic_relocs_info (info),
5672 _frvfdpic_reset_got_plt_entries,
5673 NULL);
5674
5675 /* The owner of the TLS section is the output bfd. There should
5676 be a better way to get to it. */
5677 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5678 &gpinfo))
5679 return FALSE;
5680
5681 /* Repeat until we don't make any further changes. We could fail to
5682 introduce changes in a round if, for example, the 12-bit range is
5683 full, but we later release some space by getting rid of TLS
5684 descriptors in it. We have to repeat the whole process because
5685 we might have changed the size of a section processed before this
5686 one. */
5687 *again = TRUE;
5688 }
5689
5690 return TRUE;
5691 }
5692
5693 /* Fill in code and data in dynamic sections. */
5694
5695 static bfd_boolean
5696 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5697 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5698 {
5699 /* Nothing to be done for non-FDPIC. */
5700 return TRUE;
5701 }
5702
5703 static bfd_boolean
5704 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5705 struct bfd_link_info *info)
5706 {
5707 bfd *dynobj;
5708 asection *sdyn;
5709
5710 dynobj = elf_hash_table (info)->dynobj;
5711
5712 if (frvfdpic_dynamic_got_plt_info (info))
5713 {
5714 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5715 }
5716 if (frvfdpic_got_section (info))
5717 {
5718 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5719 == (frvfdpic_gotrel_section (info)->reloc_count
5720 * sizeof (Elf32_External_Rel)));
5721
5722 if (frvfdpic_gotfixup_section (info))
5723 {
5724 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5725 bfd_vma got_value = hgot->root.u.def.value
5726 + hgot->root.u.def.section->output_section->vma
5727 + hgot->root.u.def.section->output_offset;
5728 struct bfd_link_hash_entry *hend;
5729
5730 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5731 got_value, 0);
5732
5733 if (frvfdpic_gotfixup_section (info)->size
5734 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5735 {
5736 error:
5737 info->callbacks->einfo
5738 ("LINKER BUG: .rofixup section size mismatch\n");
5739 return FALSE;
5740 }
5741
5742 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5743 FALSE, FALSE, TRUE);
5744 if (hend
5745 && (hend->type == bfd_link_hash_defined
5746 || hend->type == bfd_link_hash_defweak)
5747 && hend->u.def.section->output_section != NULL)
5748 {
5749 bfd_vma value =
5750 frvfdpic_gotfixup_section (info)->output_section->vma
5751 + frvfdpic_gotfixup_section (info)->output_offset
5752 + frvfdpic_gotfixup_section (info)->size
5753 - hend->u.def.section->output_section->vma
5754 - hend->u.def.section->output_offset;
5755 BFD_ASSERT (hend->u.def.value == value);
5756 if (hend->u.def.value != value)
5757 goto error;
5758 }
5759 }
5760 }
5761 if (frvfdpic_pltrel_section (info))
5762 {
5763 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5764 == (frvfdpic_pltrel_section (info)->reloc_count
5765 * sizeof (Elf32_External_Rel)));
5766 }
5767
5768
5769 if (elf_hash_table (info)->dynamic_sections_created)
5770 {
5771 Elf32_External_Dyn * dyncon;
5772 Elf32_External_Dyn * dynconend;
5773
5774 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5775
5776 BFD_ASSERT (sdyn != NULL);
5777
5778 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5779 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5780
5781 for (; dyncon < dynconend; dyncon++)
5782 {
5783 Elf_Internal_Dyn dyn;
5784
5785 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5786
5787 switch (dyn.d_tag)
5788 {
5789 default:
5790 break;
5791
5792 case DT_PLTGOT:
5793 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5794 + frvfdpic_got_section (info)->output_offset
5795 + frvfdpic_got_initial_offset (info);
5796 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5797 break;
5798
5799 case DT_JMPREL:
5800 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5801 ->output_section->vma
5802 + frvfdpic_pltrel_section (info)->output_offset;
5803 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5804 break;
5805
5806 case DT_PLTRELSZ:
5807 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5808 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5809 break;
5810 }
5811 }
5812 }
5813
5814 return TRUE;
5815 }
5816
5817 /* Adjust a symbol defined by a dynamic object and referenced by a
5818 regular object. */
5819
5820 static bfd_boolean
5821 elf32_frvfdpic_adjust_dynamic_symbol
5822 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5823 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5824 {
5825 bfd * dynobj;
5826
5827 dynobj = elf_hash_table (info)->dynobj;
5828
5829 /* Make sure we know what is going on here. */
5830 BFD_ASSERT (dynobj != NULL
5831 && (h->is_weakalias
5832 || (h->def_dynamic
5833 && h->ref_regular
5834 && !h->def_regular)));
5835
5836 /* If this is a weak symbol, and there is a real definition, the
5837 processor independent code will have arranged for us to see the
5838 real definition first, and we can just use the same value. */
5839 if (h->is_weakalias)
5840 {
5841 struct elf_link_hash_entry *def = weakdef (h);
5842 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
5843 h->root.u.def.section = def->root.u.def.section;
5844 h->root.u.def.value = def->root.u.def.value;
5845 return TRUE;
5846 }
5847
5848 return TRUE;
5849 }
5850
5851 /* Perform any actions needed for dynamic symbols. */
5852
5853 static bfd_boolean
5854 elf32_frvfdpic_finish_dynamic_symbol
5855 (bfd *output_bfd ATTRIBUTE_UNUSED,
5856 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5857 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5858 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5859 {
5860 return TRUE;
5861 }
5862
5863 /* Decide whether to attempt to turn absptr or lsda encodings in
5864 shared libraries into pcrel within the given input section. */
5865
5866 static bfd_boolean
5867 frvfdpic_elf_use_relative_eh_frame
5868 (bfd *input_bfd ATTRIBUTE_UNUSED,
5869 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5870 asection *eh_frame_section ATTRIBUTE_UNUSED)
5871 {
5872 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
5873 return FALSE;
5874 }
5875
5876 /* Adjust the contents of an eh_frame_hdr section before they're output. */
5877
5878 static bfd_byte
5879 frvfdpic_elf_encode_eh_address (bfd *abfd,
5880 struct bfd_link_info *info,
5881 asection *osec, bfd_vma offset,
5882 asection *loc_sec, bfd_vma loc_offset,
5883 bfd_vma *encoded)
5884 {
5885 struct elf_link_hash_entry *h;
5886
5887 h = elf_hash_table (info)->hgot;
5888 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
5889
5890 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
5891 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
5892 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
5893 loc_sec, loc_offset, encoded);
5894
5895 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
5896 == (_frvfdpic_osec_to_segment
5897 (abfd, h->root.u.def.section->output_section)));
5898
5899 *encoded = osec->vma + offset
5900 - (h->root.u.def.value
5901 + h->root.u.def.section->output_section->vma
5902 + h->root.u.def.section->output_offset);
5903
5904 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
5905 }
5906
5907 /* Look through the relocs for a section during the first phase.
5908
5909 Besides handling virtual table relocs for gc, we have to deal with
5910 all sorts of PIC-related relocations. We describe below the
5911 general plan on how to handle such relocations, even though we only
5912 collect information at this point, storing them in hash tables for
5913 perusal of later passes.
5914
5915 32 relocations are propagated to the linker output when creating
5916 position-independent output. LO16 and HI16 relocations are not
5917 supposed to be encountered in this case.
5918
5919 LABEL16 should always be resolvable by the linker, since it's only
5920 used by branches.
5921
5922 LABEL24, on the other hand, is used by calls. If it turns out that
5923 the target of a call is a dynamic symbol, a PLT entry must be
5924 created for it, which triggers the creation of a private function
5925 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
5926
5927 GPREL relocations require the referenced symbol to be in the same
5928 segment as _gp, but this can only be checked later.
5929
5930 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
5931 exist. LABEL24 might as well, since it may require a PLT entry,
5932 that will require a got.
5933
5934 Non-FUNCDESC GOT relocations require a GOT entry to be created
5935 regardless of whether the symbol is dynamic. However, since a
5936 global symbol that turns out to not be exported may have the same
5937 address of a non-dynamic symbol, we don't assign GOT entries at
5938 this point, such that we can share them in this case. A relocation
5939 for the GOT entry always has to be created, be it to offset a
5940 private symbol by the section load address, be it to get the symbol
5941 resolved dynamically.
5942
5943 FUNCDESC GOT relocations require a GOT entry to be created, and
5944 handled as if a FUNCDESC relocation was applied to the GOT entry in
5945 an object file.
5946
5947 FUNCDESC relocations referencing a symbol that turns out to NOT be
5948 dynamic cause a private function descriptor to be created. The
5949 FUNCDESC relocation then decays to a 32 relocation that points at
5950 the private descriptor. If the symbol is dynamic, the FUNCDESC
5951 relocation is propagated to the linker output, such that the
5952 dynamic linker creates the canonical descriptor, pointing to the
5953 dynamically-resolved definition of the function.
5954
5955 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
5956 symbols that are assigned to the same segment as the GOT, but we
5957 can only check this later, after we know the complete set of
5958 symbols defined and/or exported.
5959
5960 FUNCDESC GOTOFF relocations require a function descriptor to be
5961 created and, unless lazy binding is disabled or the symbol is not
5962 dynamic, a lazy PLT entry. Since we can't tell at this point
5963 whether a symbol is going to be dynamic, we have to decide later
5964 whether to create a lazy PLT entry or bind the descriptor directly
5965 to the private function.
5966
5967 FUNCDESC_VALUE relocations are not supposed to be present in object
5968 files, but they may very well be simply propagated to the linker
5969 output, since they have no side effect.
5970
5971
5972 A function descriptor always requires a FUNCDESC_VALUE relocation.
5973 Whether it's in .plt.rel or not depends on whether lazy binding is
5974 enabled and on whether the referenced symbol is dynamic.
5975
5976 The existence of a lazy PLT requires the resolverStub lazy PLT
5977 entry to be present.
5978
5979
5980 As for assignment of GOT, PLT and lazy PLT entries, and private
5981 descriptors, we might do them all sequentially, but we can do
5982 better than that. For example, we can place GOT entries and
5983 private function descriptors referenced using 12-bit operands
5984 closer to the PIC register value, such that these relocations don't
5985 overflow. Those that are only referenced with LO16 relocations
5986 could come next, but we may as well place PLT-required function
5987 descriptors in the 12-bit range to make them shorter. Symbols
5988 referenced with LO16/HI16 may come next, but we may place
5989 additional function descriptors in the 16-bit range if we can
5990 reliably tell that we've already placed entries that are ever
5991 referenced with only LO16. PLT entries are therefore generated as
5992 small as possible, while not introducing relocation overflows in
5993 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
5994 generated before or after PLT entries, but not intermingled with
5995 them, such that we can have more lazy PLT entries in range for a
5996 branch to the resolverStub. The resolverStub should be emitted at
5997 the most distant location from the first lazy PLT entry such that
5998 it's still in range for a branch, or closer, if there isn't a need
5999 for so many lazy PLT entries. Additional lazy PLT entries may be
6000 emitted after the resolverStub, as long as branches are still in
6001 range. If the branch goes out of range, longer lazy PLT entries
6002 are emitted.
6003
6004 We could further optimize PLT and lazy PLT entries by giving them
6005 priority in assignment to closer-to-gr17 locations depending on the
6006 number of occurrences of references to them (assuming a function
6007 that's called more often is more important for performance, so its
6008 PLT entry should be faster), or taking hints from the compiler.
6009 Given infinite time and money... :-) */
6010
6011 static bfd_boolean
6012 elf32_frv_check_relocs (bfd *abfd,
6013 struct bfd_link_info *info,
6014 asection *sec,
6015 const Elf_Internal_Rela *relocs)
6016 {
6017 Elf_Internal_Shdr *symtab_hdr;
6018 struct elf_link_hash_entry **sym_hashes;
6019 const Elf_Internal_Rela *rel;
6020 const Elf_Internal_Rela *rel_end;
6021 bfd *dynobj;
6022 struct frvfdpic_relocs_info *picrel;
6023
6024 if (bfd_link_relocatable (info))
6025 return TRUE;
6026
6027 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6028 sym_hashes = elf_sym_hashes (abfd);
6029
6030 dynobj = elf_hash_table (info)->dynobj;
6031 rel_end = relocs + sec->reloc_count;
6032 for (rel = relocs; rel < rel_end; rel++)
6033 {
6034 struct elf_link_hash_entry *h;
6035 unsigned long r_symndx;
6036
6037 r_symndx = ELF32_R_SYM (rel->r_info);
6038 if (r_symndx < symtab_hdr->sh_info)
6039 h = NULL;
6040 else
6041 {
6042 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6043 while (h->root.type == bfd_link_hash_indirect
6044 || h->root.type == bfd_link_hash_warning)
6045 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6046 }
6047
6048 switch (ELF32_R_TYPE (rel->r_info))
6049 {
6050 case R_FRV_GETTLSOFF:
6051 case R_FRV_TLSDESC_VALUE:
6052 case R_FRV_GOTTLSDESC12:
6053 case R_FRV_GOTTLSDESCHI:
6054 case R_FRV_GOTTLSDESCLO:
6055 case R_FRV_GOTTLSOFF12:
6056 case R_FRV_GOTTLSOFFHI:
6057 case R_FRV_GOTTLSOFFLO:
6058 case R_FRV_TLSOFF:
6059 case R_FRV_GOT12:
6060 case R_FRV_GOTHI:
6061 case R_FRV_GOTLO:
6062 case R_FRV_FUNCDESC_GOT12:
6063 case R_FRV_FUNCDESC_GOTHI:
6064 case R_FRV_FUNCDESC_GOTLO:
6065 case R_FRV_GOTOFF12:
6066 case R_FRV_GOTOFFHI:
6067 case R_FRV_GOTOFFLO:
6068 case R_FRV_FUNCDESC_GOTOFF12:
6069 case R_FRV_FUNCDESC_GOTOFFHI:
6070 case R_FRV_FUNCDESC_GOTOFFLO:
6071 case R_FRV_FUNCDESC:
6072 case R_FRV_FUNCDESC_VALUE:
6073 case R_FRV_TLSMOFF12:
6074 case R_FRV_TLSMOFFHI:
6075 case R_FRV_TLSMOFFLO:
6076 case R_FRV_TLSMOFF:
6077 if (! IS_FDPIC (abfd))
6078 goto bad_reloc;
6079 /* Fall through. */
6080 case R_FRV_GPREL12:
6081 case R_FRV_GPRELU12:
6082 case R_FRV_GPRELHI:
6083 case R_FRV_GPRELLO:
6084 case R_FRV_LABEL24:
6085 case R_FRV_32:
6086 if (! dynobj)
6087 {
6088 elf_hash_table (info)->dynobj = dynobj = abfd;
6089 if (! _frv_create_got_section (abfd, info))
6090 return FALSE;
6091 }
6092 if (! IS_FDPIC (abfd))
6093 {
6094 picrel = NULL;
6095 break;
6096 }
6097 if (h != NULL)
6098 {
6099 if (h->dynindx == -1)
6100 switch (ELF_ST_VISIBILITY (h->other))
6101 {
6102 case STV_INTERNAL:
6103 case STV_HIDDEN:
6104 break;
6105 default:
6106 bfd_elf_link_record_dynamic_symbol (info, h);
6107 break;
6108 }
6109 picrel
6110 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6111 abfd, h,
6112 rel->r_addend, INSERT);
6113 }
6114 else
6115 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6116 (info), abfd, r_symndx,
6117 rel->r_addend, INSERT);
6118 if (! picrel)
6119 return FALSE;
6120 break;
6121
6122 default:
6123 picrel = NULL;
6124 break;
6125 }
6126
6127 switch (ELF32_R_TYPE (rel->r_info))
6128 {
6129 case R_FRV_LABEL24:
6130 if (IS_FDPIC (abfd))
6131 picrel->call = 1;
6132 break;
6133
6134 case R_FRV_FUNCDESC_VALUE:
6135 picrel->relocsfdv++;
6136 if (bfd_section_flags (sec) & SEC_ALLOC)
6137 picrel->relocs32--;
6138 /* Fall through. */
6139
6140 case R_FRV_32:
6141 if (! IS_FDPIC (abfd))
6142 break;
6143
6144 picrel->sym = 1;
6145 if (bfd_section_flags (sec) & SEC_ALLOC)
6146 picrel->relocs32++;
6147 break;
6148
6149 case R_FRV_GOT12:
6150 picrel->got12 = 1;
6151 break;
6152
6153 case R_FRV_GOTHI:
6154 case R_FRV_GOTLO:
6155 picrel->gothilo = 1;
6156 break;
6157
6158 case R_FRV_FUNCDESC_GOT12:
6159 picrel->fdgot12 = 1;
6160 break;
6161
6162 case R_FRV_FUNCDESC_GOTHI:
6163 case R_FRV_FUNCDESC_GOTLO:
6164 picrel->fdgothilo = 1;
6165 break;
6166
6167 case R_FRV_GOTOFF12:
6168 case R_FRV_GOTOFFHI:
6169 case R_FRV_GOTOFFLO:
6170 picrel->gotoff = 1;
6171 break;
6172
6173 case R_FRV_FUNCDESC_GOTOFF12:
6174 picrel->fdgoff12 = 1;
6175 break;
6176
6177 case R_FRV_FUNCDESC_GOTOFFHI:
6178 case R_FRV_FUNCDESC_GOTOFFLO:
6179 picrel->fdgoffhilo = 1;
6180 break;
6181
6182 case R_FRV_FUNCDESC:
6183 picrel->fd = 1;
6184 picrel->relocsfd++;
6185 break;
6186
6187 case R_FRV_GETTLSOFF:
6188 picrel->tlsplt = 1;
6189 break;
6190
6191 case R_FRV_TLSDESC_VALUE:
6192 picrel->relocstlsd++;
6193 goto bad_reloc;
6194
6195 case R_FRV_GOTTLSDESC12:
6196 picrel->tlsdesc12 = 1;
6197 break;
6198
6199 case R_FRV_GOTTLSDESCHI:
6200 case R_FRV_GOTTLSDESCLO:
6201 picrel->tlsdeschilo = 1;
6202 break;
6203
6204 case R_FRV_TLSMOFF12:
6205 case R_FRV_TLSMOFFHI:
6206 case R_FRV_TLSMOFFLO:
6207 case R_FRV_TLSMOFF:
6208 break;
6209
6210 case R_FRV_GOTTLSOFF12:
6211 picrel->tlsoff12 = 1;
6212 info->flags |= DF_STATIC_TLS;
6213 break;
6214
6215 case R_FRV_GOTTLSOFFHI:
6216 case R_FRV_GOTTLSOFFLO:
6217 picrel->tlsoffhilo = 1;
6218 info->flags |= DF_STATIC_TLS;
6219 break;
6220
6221 case R_FRV_TLSOFF:
6222 picrel->relocstlsoff++;
6223 info->flags |= DF_STATIC_TLS;
6224 goto bad_reloc;
6225
6226 /* This relocation describes the C++ object vtable hierarchy.
6227 Reconstruct it for later use during GC. */
6228 case R_FRV_GNU_VTINHERIT:
6229 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6230 return FALSE;
6231 break;
6232
6233 /* This relocation describes which C++ vtable entries are actually
6234 used. Record for later use during GC. */
6235 case R_FRV_GNU_VTENTRY:
6236 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6237 return FALSE;
6238 break;
6239
6240 case R_FRV_LABEL16:
6241 case R_FRV_LO16:
6242 case R_FRV_HI16:
6243 case R_FRV_GPREL12:
6244 case R_FRV_GPRELU12:
6245 case R_FRV_GPREL32:
6246 case R_FRV_GPRELHI:
6247 case R_FRV_GPRELLO:
6248 case R_FRV_TLSDESC_RELAX:
6249 case R_FRV_GETTLSOFF_RELAX:
6250 case R_FRV_TLSOFF_RELAX:
6251 break;
6252
6253 default:
6254 bad_reloc:
6255 /* xgettext:c-format */
6256 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
6257 abfd, (unsigned int) ELF32_R_TYPE (rel->r_info));
6258 return FALSE;
6259 }
6260 }
6261
6262 return TRUE;
6263 }
6264
6265 \f
6266 /* Return the machine subcode from the ELF e_flags header. */
6267
6268 static int
6269 elf32_frv_machine (bfd *abfd)
6270 {
6271 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6272 {
6273 default: break;
6274 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6275 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6276 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6277 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6278 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6279 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6280 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6281 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6282 }
6283
6284 return bfd_mach_frv;
6285 }
6286
6287 /* Set the right machine number for a FRV ELF file. */
6288
6289 static bfd_boolean
6290 elf32_frv_object_p (bfd *abfd)
6291 {
6292 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6293 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6294 == (IS_FDPIC (abfd)));
6295 }
6296 \f
6297 /* Function to set the ELF flag bits. */
6298
6299 static bfd_boolean
6300 frv_elf_set_private_flags (bfd *abfd, flagword flags)
6301 {
6302 elf_elfheader (abfd)->e_flags = flags;
6303 elf_flags_init (abfd) = TRUE;
6304 return TRUE;
6305 }
6306
6307 /* Return true if the architecture described by elf header flag
6308 EXTENSION is an extension of the architecture described by BASE. */
6309
6310 static bfd_boolean
6311 frv_elf_arch_extension_p (flagword base, flagword extension)
6312 {
6313 if (base == extension)
6314 return TRUE;
6315
6316 /* CPU_GENERIC code can be merged with code for a specific
6317 architecture, in which case the result is marked as being
6318 for the specific architecture. Everything is therefore
6319 an extension of CPU_GENERIC. */
6320 if (base == EF_FRV_CPU_GENERIC)
6321 return TRUE;
6322
6323 if (extension == EF_FRV_CPU_FR450)
6324 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6325 return TRUE;
6326
6327 if (extension == EF_FRV_CPU_FR405)
6328 if (base == EF_FRV_CPU_FR400)
6329 return TRUE;
6330
6331 return FALSE;
6332 }
6333
6334 /* Merge backend specific data from an object file to the output
6335 object file when linking. */
6336
6337 static bfd_boolean
6338 frv_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
6339 {
6340 bfd *obfd = info->output_bfd;
6341 flagword old_flags, old_partial;
6342 flagword new_flags, new_partial;
6343 bfd_boolean error = FALSE;
6344 char new_opt[80];
6345 char old_opt[80];
6346
6347 /* FIXME: What should be checked when linking shared libraries? */
6348 if ((ibfd->flags & DYNAMIC) != 0)
6349 return TRUE;
6350
6351 new_opt[0] = old_opt[0] = '\0';
6352 new_flags = elf_elfheader (ibfd)->e_flags;
6353 old_flags = elf_elfheader (obfd)->e_flags;
6354
6355 if (new_flags & EF_FRV_FDPIC)
6356 new_flags &= ~EF_FRV_PIC;
6357
6358 #ifdef DEBUG
6359 _bfd_error_handler
6360 ("old_flags = 0x%.8x, new_flags = 0x%.8x, init = %s, filename = %s",
6361 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6362 bfd_get_filename (ibfd));
6363 #endif
6364
6365 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6366 {
6367 elf_flags_init (obfd) = TRUE;
6368 old_flags = new_flags;
6369 }
6370
6371 else if (new_flags == old_flags) /* Compatible flags are ok. */
6372 ;
6373
6374 else /* Possibly incompatible flags. */
6375 {
6376 /* Warn if different # of gprs are used. Note, 0 means nothing is
6377 said about the size of gprs. */
6378 new_partial = (new_flags & EF_FRV_GPR_MASK);
6379 old_partial = (old_flags & EF_FRV_GPR_MASK);
6380 if (new_partial == old_partial)
6381 ;
6382
6383 else if (new_partial == 0)
6384 ;
6385
6386 else if (old_partial == 0)
6387 old_flags |= new_partial;
6388
6389 else
6390 {
6391 switch (new_partial)
6392 {
6393 default: strcat (new_opt, " -mgpr-??"); break;
6394 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6395 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6396 }
6397
6398 switch (old_partial)
6399 {
6400 default: strcat (old_opt, " -mgpr-??"); break;
6401 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6402 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6403 }
6404 }
6405
6406 /* Warn if different # of fprs are used. Note, 0 means nothing is
6407 said about the size of fprs. */
6408 new_partial = (new_flags & EF_FRV_FPR_MASK);
6409 old_partial = (old_flags & EF_FRV_FPR_MASK);
6410 if (new_partial == old_partial)
6411 ;
6412
6413 else if (new_partial == 0)
6414 ;
6415
6416 else if (old_partial == 0)
6417 old_flags |= new_partial;
6418
6419 else
6420 {
6421 switch (new_partial)
6422 {
6423 default: strcat (new_opt, " -mfpr-?"); break;
6424 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6425 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6426 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6427 }
6428
6429 switch (old_partial)
6430 {
6431 default: strcat (old_opt, " -mfpr-?"); break;
6432 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6433 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6434 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6435 }
6436 }
6437
6438 /* Warn if different dword support was used. Note, 0 means nothing is
6439 said about the dword support. */
6440 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6441 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6442 if (new_partial == old_partial)
6443 ;
6444
6445 else if (new_partial == 0)
6446 ;
6447
6448 else if (old_partial == 0)
6449 old_flags |= new_partial;
6450
6451 else
6452 {
6453 switch (new_partial)
6454 {
6455 default: strcat (new_opt, " -mdword-?"); break;
6456 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6457 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6458 }
6459
6460 switch (old_partial)
6461 {
6462 default: strcat (old_opt, " -mdword-?"); break;
6463 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6464 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6465 }
6466 }
6467
6468 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6469 feature is used. */
6470 old_flags |= new_flags & (EF_FRV_DOUBLE
6471 | EF_FRV_MEDIA
6472 | EF_FRV_MULADD
6473 | EF_FRV_NON_PIC_RELOCS);
6474
6475 /* If any module was compiled without -G0, clear the G0 bit. */
6476 old_flags = ((old_flags & ~ EF_FRV_G0)
6477 | (old_flags & new_flags & EF_FRV_G0));
6478
6479 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6480 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6481 | (old_flags & new_flags & EF_FRV_NOPACK));
6482
6483 /* We don't have to do anything if the pic flags are the same, or the new
6484 module(s) were compiled with -mlibrary-pic. */
6485 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6486 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6487 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6488 ;
6489
6490 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6491 flags if any from the new module. */
6492 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6493 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6494
6495 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6496 else if (new_partial != 0 && old_partial != 0)
6497 old_flags |= new_partial;
6498
6499 /* One module was compiled for pic and the other was not, see if we have
6500 had any relocations that are not pic-safe. */
6501 else
6502 {
6503 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6504 old_flags |= new_partial;
6505 else
6506 {
6507 old_flags &= ~ EF_FRV_PIC_FLAGS;
6508 #ifndef FRV_NO_PIC_ERROR
6509 error = TRUE;
6510 _bfd_error_handler
6511 /* xgettext:c-format */
6512 (_("%pB: compiled with %s and linked with modules"
6513 " that use non-pic relocations"),
6514 ibfd, (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6515 #endif
6516 }
6517 }
6518
6519 /* Warn if different cpu is used (allow a specific cpu to override
6520 the generic cpu). */
6521 new_partial = (new_flags & EF_FRV_CPU_MASK);
6522 old_partial = (old_flags & EF_FRV_CPU_MASK);
6523 if (frv_elf_arch_extension_p (new_partial, old_partial))
6524 ;
6525
6526 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6527 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6528
6529 else
6530 {
6531 switch (new_partial)
6532 {
6533 default: strcat (new_opt, " -mcpu=?"); break;
6534 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6535 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6536 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6537 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6538 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6539 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6540 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6541 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6542 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6543 }
6544
6545 switch (old_partial)
6546 {
6547 default: strcat (old_opt, " -mcpu=?"); break;
6548 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6549 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6550 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6551 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6552 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6553 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6554 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6555 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6556 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6557 }
6558 }
6559
6560 /* Print out any mismatches from above. */
6561 if (new_opt[0])
6562 {
6563 error = TRUE;
6564 _bfd_error_handler
6565 /* xgettext:c-format */
6566 (_("%pB: compiled with %s and linked with modules compiled with %s"),
6567 ibfd, new_opt, old_opt);
6568 }
6569
6570 /* Warn about any other mismatches */
6571 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6572 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6573 if (new_partial != old_partial)
6574 {
6575 old_flags |= new_partial;
6576 error = TRUE;
6577 _bfd_error_handler
6578 /* xgettext:c-format */
6579 (_("%pB: uses different unknown e_flags (%#x) fields"
6580 " than previous modules (%#x)"),
6581 ibfd, new_partial, old_partial);
6582 }
6583 }
6584
6585 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6586 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6587 old_flags |= EF_FRV_NOPACK;
6588
6589 /* Update the old flags now with changes made above. */
6590 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6591 elf_elfheader (obfd)->e_flags = old_flags;
6592 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6593 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6594
6595 if (((new_flags & EF_FRV_FDPIC) == 0)
6596 != (! IS_FDPIC (ibfd)))
6597 {
6598 error = TRUE;
6599 if (IS_FDPIC (obfd))
6600 _bfd_error_handler
6601 (_("%pB: cannot link non-fdpic object file into fdpic executable"),
6602 ibfd);
6603 else
6604 _bfd_error_handler
6605 (_("%pB: cannot link fdpic object file into non-fdpic executable"),
6606 ibfd);
6607 }
6608
6609 if (error)
6610 bfd_set_error (bfd_error_bad_value);
6611
6612 return !error;
6613 }
6614
6615 \f
6616 static bfd_boolean
6617 frv_elf_print_private_bfd_data (bfd *abfd, void * ptr)
6618 {
6619 FILE *file = (FILE *) ptr;
6620 flagword flags;
6621
6622 BFD_ASSERT (abfd != NULL && ptr != NULL);
6623
6624 /* Print normal ELF private data. */
6625 _bfd_elf_print_private_bfd_data (abfd, ptr);
6626
6627 flags = elf_elfheader (abfd)->e_flags;
6628 fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6629
6630 switch (flags & EF_FRV_CPU_MASK)
6631 {
6632 default: break;
6633 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6634 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6635 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6636 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6637 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6638 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6639 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6640 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6641 }
6642
6643 switch (flags & EF_FRV_GPR_MASK)
6644 {
6645 default: break;
6646 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6647 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6648 }
6649
6650 switch (flags & EF_FRV_FPR_MASK)
6651 {
6652 default: break;
6653 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6654 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6655 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6656 }
6657
6658 switch (flags & EF_FRV_DWORD_MASK)
6659 {
6660 default: break;
6661 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6662 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6663 }
6664
6665 if (flags & EF_FRV_DOUBLE)
6666 fprintf (file, " -mdouble");
6667
6668 if (flags & EF_FRV_MEDIA)
6669 fprintf (file, " -mmedia");
6670
6671 if (flags & EF_FRV_MULADD)
6672 fprintf (file, " -mmuladd");
6673
6674 if (flags & EF_FRV_PIC)
6675 fprintf (file, " -fpic");
6676
6677 if (flags & EF_FRV_BIGPIC)
6678 fprintf (file, " -fPIC");
6679
6680 if (flags & EF_FRV_LIBPIC)
6681 fprintf (file, " -mlibrary-pic");
6682
6683 if (flags & EF_FRV_FDPIC)
6684 fprintf (file, " -mfdpic");
6685
6686 if (flags & EF_FRV_NON_PIC_RELOCS)
6687 fprintf (file, " non-pic relocations");
6688
6689 if (flags & EF_FRV_G0)
6690 fprintf (file, " -G0");
6691
6692 fputc ('\n', file);
6693 return TRUE;
6694 }
6695
6696 \f
6697 /* Support for core dump NOTE sections. */
6698
6699 static bfd_boolean
6700 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6701 {
6702 int offset;
6703 unsigned int raw_size;
6704
6705 switch (note->descsz)
6706 {
6707 default:
6708 return FALSE;
6709
6710 /* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
6711 hardcoded offsets and sizes listed below (and contained within
6712 this lexical block) refer to fields in the target's elf_prstatus
6713 struct. */
6714 case 268:
6715 /* `pr_cursig' is at offset 12. */
6716 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6717
6718 /* `pr_pid' is at offset 24. */
6719 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6720
6721 /* `pr_reg' is at offset 72. */
6722 offset = 72;
6723
6724 /* Most grok_prstatus implementations set `raw_size' to the size
6725 of the pr_reg field. For Linux/FRV, we set `raw_size' to be
6726 the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6727 and `pr_interp_fdpic_loadmap', both of which (by design)
6728 immediately follow `pr_reg'. This will allow these fields to
6729 be viewed by GDB as registers.
6730
6731 `pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
6732 `pr_interp_fdpic_loadmap' are 4 bytes each. */
6733 raw_size = 184 + 4 + 4;
6734
6735 break;
6736 }
6737
6738 /* Make a ".reg/999" section. */
6739 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6740 note->descpos + offset);
6741 }
6742
6743 static bfd_boolean
6744 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6745 {
6746 switch (note->descsz)
6747 {
6748 default:
6749 return FALSE;
6750
6751 /* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
6752 case 124:
6753
6754 /* `pr_fname' is found at offset 28 and is 16 bytes long. */
6755 elf_tdata (abfd)->core->program
6756 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6757
6758 /* `pr_psargs' is found at offset 44 and is 80 bytes long. */
6759 elf_tdata (abfd)->core->command
6760 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6761 }
6762
6763 /* Note that for some reason, a spurious space is tacked
6764 onto the end of the args in some (at least one anyway)
6765 implementations, so strip it off if it exists. */
6766
6767 {
6768 char *command = elf_tdata (abfd)->core->command;
6769 int n = strlen (command);
6770
6771 if (0 < n && command[n - 1] == ' ')
6772 command[n - 1] = '\0';
6773 }
6774
6775 return TRUE;
6776 }
6777 #define ELF_ARCH bfd_arch_frv
6778 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
6779 #define ELF_MAXPAGESIZE 0x1000
6780
6781 #define TARGET_BIG_SYM frv_elf32_vec
6782 #define TARGET_BIG_NAME "elf32-frv"
6783
6784 #define elf_info_to_howto frv_info_to_howto_rela
6785 #define elf_backend_relocate_section elf32_frv_relocate_section
6786 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
6787 #define elf_backend_check_relocs elf32_frv_check_relocs
6788 #define elf_backend_object_p elf32_frv_object_p
6789 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
6790
6791 #define elf_backend_stack_align 8
6792 #define elf_backend_can_gc_sections 1
6793 #define elf_backend_rela_normal 1
6794
6795 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
6796 #define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
6797 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
6798 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
6799 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
6800
6801 #define elf_backend_want_got_sym 1
6802 #define elf_backend_got_header_size 0
6803 #define elf_backend_want_got_plt 0
6804 #define elf_backend_plt_readonly 1
6805 #define elf_backend_want_plt_sym 0
6806 #define elf_backend_plt_header_size 0
6807
6808 #define elf_backend_finish_dynamic_sections \
6809 elf32_frv_finish_dynamic_sections
6810
6811 #define elf_backend_grok_prstatus elf32_frv_grok_prstatus
6812 #define elf_backend_grok_psinfo elf32_frv_grok_psinfo
6813
6814 #define elf_backend_linux_prpsinfo32_ugid16 TRUE
6815
6816 #include "elf32-target.h"
6817
6818 #undef ELF_TARGET_ID
6819 #define ELF_TARGET_ID FRV_ELF_DATA
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"
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