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correct ft32 reloc range test
[deliverable/binutils-gdb.git] / bfd / elf32-frv.c
1 /* FRV-specific support for 32-bit ELF.
2 Copyright (C) 2002-2018 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/frv.h"
26 #include "dwarf2.h"
27 #include "hashtab.h"
28
29 /* Forward declarations. */
30
31
32 static reloc_howto_type elf32_frv_howto_table [] =
33 {
34 /* This reloc does nothing. */
35 HOWTO (R_FRV_NONE, /* type */
36 0, /* rightshift */
37 3, /* size (0 = byte, 1 = short, 2 = long) */
38 0, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_dont, /* complain_on_overflow */
42 bfd_elf_generic_reloc, /* special_function */
43 "R_FRV_NONE", /* name */
44 FALSE, /* partial_inplace */
45 0, /* src_mask */
46 0, /* dst_mask */
47 FALSE), /* pcrel_offset */
48
49 /* A 32 bit absolute relocation. */
50 HOWTO (R_FRV_32, /* type */
51 0, /* rightshift */
52 2, /* size (0 = byte, 1 = short, 2 = long) */
53 32, /* bitsize */
54 FALSE, /* pc_relative */
55 0, /* bitpos */
56 complain_overflow_bitfield, /* complain_on_overflow */
57 bfd_elf_generic_reloc, /* special_function */
58 "R_FRV_32", /* name */
59 FALSE, /* partial_inplace */
60 0xffffffff, /* src_mask */
61 0xffffffff, /* dst_mask */
62 FALSE), /* pcrel_offset */
63
64 /* A 16 bit pc-relative relocation. */
65 HOWTO (R_FRV_LABEL16, /* type */
66 2, /* rightshift */
67 2, /* size (0 = byte, 1 = short, 2 = long) */
68 16, /* bitsize */
69 TRUE, /* pc_relative */
70 0, /* bitpos */
71 complain_overflow_signed, /* complain_on_overflow */
72 bfd_elf_generic_reloc, /* special_function */
73 "R_FRV_LABEL16", /* name */
74 FALSE, /* partial_inplace */
75 0xffff, /* src_mask */
76 0xffff, /* dst_mask */
77 TRUE), /* pcrel_offset */
78
79 /* A 24-bit pc-relative relocation. */
80 HOWTO (R_FRV_LABEL24, /* type */
81 2, /* rightshift */
82 2, /* size (0 = byte, 1 = short, 2 = long) */
83 26, /* bitsize */
84 TRUE, /* pc_relative */
85 0, /* bitpos */
86 complain_overflow_bitfield, /* complain_on_overflow */
87 bfd_elf_generic_reloc, /* special_function */
88 "R_FRV_LABEL24", /* name */
89 FALSE, /* partial_inplace */
90 0x7e03ffff, /* src_mask */
91 0x7e03ffff, /* dst_mask */
92 TRUE), /* pcrel_offset */
93
94 HOWTO (R_FRV_LO16, /* type */
95 0, /* rightshift */
96 2, /* size (0 = byte, 1 = short, 2 = long) */
97 16, /* bitsize */
98 FALSE, /* pc_relative */
99 0, /* bitpos */
100 complain_overflow_dont, /* complain_on_overflow */
101 bfd_elf_generic_reloc, /* special_function */
102 "R_FRV_LO16", /* name */
103 FALSE, /* partial_inplace */
104 0xffff, /* src_mask */
105 0xffff, /* dst_mask */
106 FALSE), /* pcrel_offset */
107
108 HOWTO (R_FRV_HI16, /* type */
109 0, /* rightshift */
110 2, /* size (0 = byte, 1 = short, 2 = long) */
111 16, /* bitsize */
112 FALSE, /* pc_relative */
113 0, /* bitpos */
114 complain_overflow_dont, /* complain_on_overflow */
115 bfd_elf_generic_reloc, /* special_function */
116 "R_FRV_HI16", /* name */
117 FALSE, /* partial_inplace */
118 0xffff, /* src_mask */
119 0xffff, /* dst_mask */
120 FALSE), /* pcrel_offset */
121
122 HOWTO (R_FRV_GPREL12, /* type */
123 0, /* rightshift */
124 2, /* size (0 = byte, 1 = short, 2 = long) */
125 12, /* bitsize */
126 FALSE, /* pc_relative */
127 0, /* bitpos */
128 complain_overflow_dont, /* complain_on_overflow */
129 bfd_elf_generic_reloc, /* special_function */
130 "R_FRV_GPREL12", /* name */
131 FALSE, /* partial_inplace */
132 0xfff, /* src_mask */
133 0xfff, /* dst_mask */
134 FALSE), /* pcrel_offset */
135
136 HOWTO (R_FRV_GPRELU12, /* type */
137 0, /* rightshift */
138 2, /* size (0 = byte, 1 = short, 2 = long) */
139 12, /* bitsize */
140 FALSE, /* pc_relative */
141 0, /* bitpos */
142 complain_overflow_dont, /* complain_on_overflow */
143 bfd_elf_generic_reloc, /* special_function */
144 "R_FRV_GPRELU12", /* name */
145 FALSE, /* partial_inplace */
146 0xfff, /* src_mask */
147 0x3f03f, /* dst_mask */
148 FALSE), /* pcrel_offset */
149
150 HOWTO (R_FRV_GPREL32, /* type */
151 0, /* rightshift */
152 2, /* size (0 = byte, 1 = short, 2 = long) */
153 32, /* bitsize */
154 FALSE, /* pc_relative */
155 0, /* bitpos */
156 complain_overflow_dont, /* complain_on_overflow */
157 bfd_elf_generic_reloc, /* special_function */
158 "R_FRV_GPREL32", /* name */
159 FALSE, /* partial_inplace */
160 0xffffffff, /* src_mask */
161 0xffffffff, /* dst_mask */
162 FALSE), /* pcrel_offset */
163
164 HOWTO (R_FRV_GPRELHI, /* type */
165 0, /* rightshift */
166 2, /* size (0 = byte, 1 = short, 2 = long) */
167 16, /* bitsize */
168 FALSE, /* pc_relative */
169 0, /* bitpos */
170 complain_overflow_dont, /* complain_on_overflow */
171 bfd_elf_generic_reloc, /* special_function */
172 "R_FRV_GPRELHI", /* name */
173 FALSE, /* partial_inplace */
174 0xffff, /* src_mask */
175 0xffff, /* dst_mask */
176 FALSE), /* pcrel_offset */
177
178 HOWTO (R_FRV_GPRELLO, /* type */
179 0, /* rightshift */
180 2, /* size (0 = byte, 1 = short, 2 = long) */
181 16, /* bitsize */
182 FALSE, /* pc_relative */
183 0, /* bitpos */
184 complain_overflow_dont, /* complain_on_overflow */
185 bfd_elf_generic_reloc, /* special_function */
186 "R_FRV_GPRELLO", /* name */
187 FALSE, /* partial_inplace */
188 0xffff, /* src_mask */
189 0xffff, /* dst_mask */
190 FALSE), /* pcrel_offset */
191
192 /* A 12-bit signed operand with the GOT offset for the address of
193 the symbol. */
194 HOWTO (R_FRV_GOT12, /* type */
195 0, /* rightshift */
196 2, /* size (0 = byte, 1 = short, 2 = long) */
197 12, /* bitsize */
198 FALSE, /* pc_relative */
199 0, /* bitpos */
200 complain_overflow_signed, /* complain_on_overflow */
201 bfd_elf_generic_reloc, /* special_function */
202 "R_FRV_GOT12", /* name */
203 FALSE, /* partial_inplace */
204 0xfff, /* src_mask */
205 0xfff, /* dst_mask */
206 FALSE), /* pcrel_offset */
207
208 /* The upper 16 bits of the GOT offset for the address of the
209 symbol. */
210 HOWTO (R_FRV_GOTHI, /* type */
211 0, /* rightshift */
212 2, /* size (0 = byte, 1 = short, 2 = long) */
213 16, /* bitsize */
214 FALSE, /* pc_relative */
215 0, /* bitpos */
216 complain_overflow_dont, /* complain_on_overflow */
217 bfd_elf_generic_reloc, /* special_function */
218 "R_FRV_GOTHI", /* name */
219 FALSE, /* partial_inplace */
220 0xffff, /* src_mask */
221 0xffff, /* dst_mask */
222 FALSE), /* pcrel_offset */
223
224 /* The lower 16 bits of the GOT offset for the address of the
225 symbol. */
226 HOWTO (R_FRV_GOTLO, /* type */
227 0, /* rightshift */
228 2, /* size (0 = byte, 1 = short, 2 = long) */
229 16, /* bitsize */
230 FALSE, /* pc_relative */
231 0, /* bitpos */
232 complain_overflow_dont, /* complain_on_overflow */
233 bfd_elf_generic_reloc, /* special_function */
234 "R_FRV_GOTLO", /* name */
235 FALSE, /* partial_inplace */
236 0xffff, /* src_mask */
237 0xffff, /* dst_mask */
238 FALSE), /* pcrel_offset */
239
240 /* The 32-bit address of the canonical descriptor of a function. */
241 HOWTO (R_FRV_FUNCDESC, /* type */
242 0, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 32, /* bitsize */
245 FALSE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_bitfield, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_FRV_FUNCDESC", /* name */
250 FALSE, /* partial_inplace */
251 0xffffffff, /* src_mask */
252 0xffffffff, /* dst_mask */
253 FALSE), /* pcrel_offset */
254
255 /* A 12-bit signed operand with the GOT offset for the address of
256 canonical descriptor of a function. */
257 HOWTO (R_FRV_FUNCDESC_GOT12, /* type */
258 0, /* rightshift */
259 2, /* size (0 = byte, 1 = short, 2 = long) */
260 12, /* bitsize */
261 FALSE, /* pc_relative */
262 0, /* bitpos */
263 complain_overflow_signed, /* complain_on_overflow */
264 bfd_elf_generic_reloc, /* special_function */
265 "R_FRV_FUNCDESC_GOT12", /* name */
266 FALSE, /* partial_inplace */
267 0xfff, /* src_mask */
268 0xfff, /* dst_mask */
269 FALSE), /* pcrel_offset */
270
271 /* The upper 16 bits of the GOT offset for the address of the
272 canonical descriptor of a function. */
273 HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */
274 0, /* rightshift */
275 2, /* size (0 = byte, 1 = short, 2 = long) */
276 16, /* bitsize */
277 FALSE, /* pc_relative */
278 0, /* bitpos */
279 complain_overflow_dont, /* complain_on_overflow */
280 bfd_elf_generic_reloc, /* special_function */
281 "R_FRV_FUNCDESC_GOTHI", /* name */
282 FALSE, /* partial_inplace */
283 0xffff, /* src_mask */
284 0xffff, /* dst_mask */
285 FALSE), /* pcrel_offset */
286
287 /* The lower 16 bits of the GOT offset for the address of the
288 canonical descriptor of a function. */
289 HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */
290 0, /* rightshift */
291 2, /* size (0 = byte, 1 = short, 2 = long) */
292 16, /* bitsize */
293 FALSE, /* pc_relative */
294 0, /* bitpos */
295 complain_overflow_dont, /* complain_on_overflow */
296 bfd_elf_generic_reloc, /* special_function */
297 "R_FRV_FUNCDESC_GOTLO", /* name */
298 FALSE, /* partial_inplace */
299 0xffff, /* src_mask */
300 0xffff, /* dst_mask */
301 FALSE), /* pcrel_offset */
302
303 /* The 64-bit descriptor of a function. */
304 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
305 0, /* rightshift */
306 2, /* size (0 = byte, 1 = short, 2 = long) */
307 64, /* bitsize */
308 FALSE, /* pc_relative */
309 0, /* bitpos */
310 complain_overflow_bitfield, /* complain_on_overflow */
311 bfd_elf_generic_reloc, /* special_function */
312 "R_FRV_FUNCDESC_VALUE", /* name */
313 FALSE, /* partial_inplace */
314 0xffffffff, /* src_mask */
315 0xffffffff, /* dst_mask */
316 FALSE), /* pcrel_offset */
317
318 /* A 12-bit signed operand with the GOT offset for the address of
319 canonical descriptor of a function. */
320 HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
321 0, /* rightshift */
322 2, /* size (0 = byte, 1 = short, 2 = long) */
323 12, /* bitsize */
324 FALSE, /* pc_relative */
325 0, /* bitpos */
326 complain_overflow_signed, /* complain_on_overflow */
327 bfd_elf_generic_reloc, /* special_function */
328 "R_FRV_FUNCDESC_GOTOFF12", /* name */
329 FALSE, /* partial_inplace */
330 0xfff, /* src_mask */
331 0xfff, /* dst_mask */
332 FALSE), /* pcrel_offset */
333
334 /* The upper 16 bits of the GOT offset for the address of the
335 canonical descriptor of a function. */
336 HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
337 0, /* rightshift */
338 2, /* size (0 = byte, 1 = short, 2 = long) */
339 16, /* bitsize */
340 FALSE, /* pc_relative */
341 0, /* bitpos */
342 complain_overflow_dont, /* complain_on_overflow */
343 bfd_elf_generic_reloc, /* special_function */
344 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
345 FALSE, /* partial_inplace */
346 0xffff, /* src_mask */
347 0xffff, /* dst_mask */
348 FALSE), /* pcrel_offset */
349
350 /* The lower 16 bits of the GOT offset for the address of the
351 canonical descriptor of a function. */
352 HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
353 0, /* rightshift */
354 2, /* size (0 = byte, 1 = short, 2 = long) */
355 16, /* bitsize */
356 FALSE, /* pc_relative */
357 0, /* bitpos */
358 complain_overflow_dont, /* complain_on_overflow */
359 bfd_elf_generic_reloc, /* special_function */
360 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
361 FALSE, /* partial_inplace */
362 0xffff, /* src_mask */
363 0xffff, /* dst_mask */
364 FALSE), /* pcrel_offset */
365
366 /* A 12-bit signed operand with the GOT offset for the address of
367 the symbol. */
368 HOWTO (R_FRV_GOTOFF12, /* type */
369 0, /* rightshift */
370 2, /* size (0 = byte, 1 = short, 2 = long) */
371 12, /* bitsize */
372 FALSE, /* pc_relative */
373 0, /* bitpos */
374 complain_overflow_signed, /* complain_on_overflow */
375 bfd_elf_generic_reloc, /* special_function */
376 "R_FRV_GOTOFF12", /* name */
377 FALSE, /* partial_inplace */
378 0xfff, /* src_mask */
379 0xfff, /* dst_mask */
380 FALSE), /* pcrel_offset */
381
382 /* The upper 16 bits of the GOT offset for the address of the
383 symbol. */
384 HOWTO (R_FRV_GOTOFFHI, /* type */
385 0, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 16, /* bitsize */
388 FALSE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_dont, /* complain_on_overflow */
391 bfd_elf_generic_reloc, /* special_function */
392 "R_FRV_GOTOFFHI", /* name */
393 FALSE, /* partial_inplace */
394 0xffff, /* src_mask */
395 0xffff, /* dst_mask */
396 FALSE), /* pcrel_offset */
397
398 /* The lower 16 bits of the GOT offset for the address of the
399 symbol. */
400 HOWTO (R_FRV_GOTOFFLO, /* type */
401 0, /* rightshift */
402 2, /* size (0 = byte, 1 = short, 2 = long) */
403 16, /* bitsize */
404 FALSE, /* pc_relative */
405 0, /* bitpos */
406 complain_overflow_dont, /* complain_on_overflow */
407 bfd_elf_generic_reloc, /* special_function */
408 "R_FRV_GOTOFFLO", /* name */
409 FALSE, /* partial_inplace */
410 0xffff, /* src_mask */
411 0xffff, /* dst_mask */
412 FALSE), /* pcrel_offset */
413
414 /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
415 a thread-local symbol. If the symbol number is 0, it refers to
416 the module. */
417 HOWTO (R_FRV_GETTLSOFF, /* type */
418 2, /* rightshift */
419 2, /* size (0 = byte, 1 = short, 2 = long) */
420 26, /* bitsize */
421 TRUE, /* pc_relative */
422 0, /* bitpos */
423 complain_overflow_bitfield, /* complain_on_overflow */
424 bfd_elf_generic_reloc, /* special_function */
425 "R_FRV_GETTLSOFF", /* name */
426 FALSE, /* partial_inplace */
427 0x7e03ffff, /* src_mask */
428 0x7e03ffff, /* dst_mask */
429 TRUE), /* pcrel_offset */
430
431 /* A 64-bit TLS descriptor for a symbol. This relocation is only
432 valid as a REL, dynamic relocation. */
433 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
434 0, /* rightshift */
435 2, /* size (0 = byte, 1 = short, 2 = long) */
436 64, /* bitsize */
437 FALSE, /* pc_relative */
438 0, /* bitpos */
439 complain_overflow_bitfield, /* complain_on_overflow */
440 bfd_elf_generic_reloc, /* special_function */
441 "R_FRV_TLSDESC_VALUE", /* name */
442 FALSE, /* partial_inplace */
443 0xffffffff, /* src_mask */
444 0xffffffff, /* dst_mask */
445 FALSE), /* pcrel_offset */
446
447 /* A 12-bit signed operand with the GOT offset for the TLS
448 descriptor of the symbol. */
449 HOWTO (R_FRV_GOTTLSDESC12, /* type */
450 0, /* rightshift */
451 2, /* size (0 = byte, 1 = short, 2 = long) */
452 12, /* bitsize */
453 FALSE, /* pc_relative */
454 0, /* bitpos */
455 complain_overflow_signed, /* complain_on_overflow */
456 bfd_elf_generic_reloc, /* special_function */
457 "R_FRV_GOTTLSDESC12", /* name */
458 FALSE, /* partial_inplace */
459 0xfff, /* src_mask */
460 0xfff, /* dst_mask */
461 FALSE), /* pcrel_offset */
462
463 /* The upper 16 bits of the GOT offset for the TLS descriptor of the
464 symbol. */
465 HOWTO (R_FRV_GOTTLSDESCHI, /* type */
466 0, /* rightshift */
467 2, /* size (0 = byte, 1 = short, 2 = long) */
468 16, /* bitsize */
469 FALSE, /* pc_relative */
470 0, /* bitpos */
471 complain_overflow_dont, /* complain_on_overflow */
472 bfd_elf_generic_reloc, /* special_function */
473 "R_FRV_GOTTLSDESCHI", /* name */
474 FALSE, /* partial_inplace */
475 0xffff, /* src_mask */
476 0xffff, /* dst_mask */
477 FALSE), /* pcrel_offset */
478
479 /* The lower 16 bits of the GOT offset for the TLS descriptor of the
480 symbol. */
481 HOWTO (R_FRV_GOTTLSDESCLO, /* type */
482 0, /* rightshift */
483 2, /* size (0 = byte, 1 = short, 2 = long) */
484 16, /* bitsize */
485 FALSE, /* pc_relative */
486 0, /* bitpos */
487 complain_overflow_dont, /* complain_on_overflow */
488 bfd_elf_generic_reloc, /* special_function */
489 "R_FRV_GOTTLSDESCLO", /* name */
490 FALSE, /* partial_inplace */
491 0xffff, /* src_mask */
492 0xffff, /* dst_mask */
493 FALSE), /* pcrel_offset */
494
495 /* A 12-bit signed operand with the offset from the module base
496 address to the thread-local symbol address. */
497 HOWTO (R_FRV_TLSMOFF12, /* type */
498 0, /* rightshift */
499 2, /* size (0 = byte, 1 = short, 2 = long) */
500 12, /* bitsize */
501 FALSE, /* pc_relative */
502 0, /* bitpos */
503 complain_overflow_signed, /* complain_on_overflow */
504 bfd_elf_generic_reloc, /* special_function */
505 "R_FRV_TLSMOFF12", /* name */
506 FALSE, /* partial_inplace */
507 0xfff, /* src_mask */
508 0xfff, /* dst_mask */
509 FALSE), /* pcrel_offset */
510
511 /* The upper 16 bits of the offset from the module base address to
512 the thread-local symbol address. */
513 HOWTO (R_FRV_TLSMOFFHI, /* type */
514 0, /* rightshift */
515 2, /* size (0 = byte, 1 = short, 2 = long) */
516 16, /* bitsize */
517 FALSE, /* pc_relative */
518 0, /* bitpos */
519 complain_overflow_dont, /* complain_on_overflow */
520 bfd_elf_generic_reloc, /* special_function */
521 "R_FRV_TLSMOFFHI", /* name */
522 FALSE, /* partial_inplace */
523 0xffff, /* src_mask */
524 0xffff, /* dst_mask */
525 FALSE), /* pcrel_offset */
526
527 /* The lower 16 bits of the offset from the module base address to
528 the thread-local symbol address. */
529 HOWTO (R_FRV_TLSMOFFLO, /* type */
530 0, /* rightshift */
531 2, /* size (0 = byte, 1 = short, 2 = long) */
532 16, /* bitsize */
533 FALSE, /* pc_relative */
534 0, /* bitpos */
535 complain_overflow_dont, /* complain_on_overflow */
536 bfd_elf_generic_reloc, /* special_function */
537 "R_FRV_TLSMOFFLO", /* name */
538 FALSE, /* partial_inplace */
539 0xffff, /* src_mask */
540 0xffff, /* dst_mask */
541 FALSE), /* pcrel_offset */
542
543 /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
544 for a symbol. */
545 HOWTO (R_FRV_GOTTLSOFF12, /* type */
546 0, /* rightshift */
547 2, /* size (0 = byte, 1 = short, 2 = long) */
548 12, /* bitsize */
549 FALSE, /* pc_relative */
550 0, /* bitpos */
551 complain_overflow_signed, /* complain_on_overflow */
552 bfd_elf_generic_reloc, /* special_function */
553 "R_FRV_GOTTLSOFF12", /* name */
554 FALSE, /* partial_inplace */
555 0xfff, /* src_mask */
556 0xfff, /* dst_mask */
557 FALSE), /* pcrel_offset */
558
559 /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
560 symbol. */
561 HOWTO (R_FRV_GOTTLSOFFHI, /* type */
562 0, /* rightshift */
563 2, /* size (0 = byte, 1 = short, 2 = long) */
564 16, /* bitsize */
565 FALSE, /* pc_relative */
566 0, /* bitpos */
567 complain_overflow_dont, /* complain_on_overflow */
568 bfd_elf_generic_reloc, /* special_function */
569 "R_FRV_GOTTLSOFFHI", /* name */
570 FALSE, /* partial_inplace */
571 0xffff, /* src_mask */
572 0xffff, /* dst_mask */
573 FALSE), /* pcrel_offset */
574
575 /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
576 symbol. */
577 HOWTO (R_FRV_GOTTLSOFFLO, /* type */
578 0, /* rightshift */
579 2, /* size (0 = byte, 1 = short, 2 = long) */
580 16, /* bitsize */
581 FALSE, /* pc_relative */
582 0, /* bitpos */
583 complain_overflow_dont, /* complain_on_overflow */
584 bfd_elf_generic_reloc, /* special_function */
585 "R_FRV_GOTTLSOFFLO", /* name */
586 FALSE, /* partial_inplace */
587 0xffff, /* src_mask */
588 0xffff, /* dst_mask */
589 FALSE), /* pcrel_offset */
590
591 /* The 32-bit offset from the thread pointer (not the module base
592 address) to a thread-local symbol. */
593 HOWTO (R_FRV_TLSOFF, /* type */
594 0, /* rightshift */
595 2, /* size (0 = byte, 1 = short, 2 = long) */
596 32, /* bitsize */
597 FALSE, /* pc_relative */
598 0, /* bitpos */
599 complain_overflow_dont, /* complain_on_overflow */
600 bfd_elf_generic_reloc, /* special_function */
601 "R_FRV_TLSOFF", /* name */
602 FALSE, /* partial_inplace */
603 0xffffffff, /* src_mask */
604 0xffffffff, /* dst_mask */
605 FALSE), /* pcrel_offset */
606
607 /* An annotation for linker relaxation, that denotes the
608 symbol+addend whose TLS descriptor is referenced by the sum of
609 the two input registers of an ldd instruction. */
610 HOWTO (R_FRV_TLSDESC_RELAX, /* type */
611 0, /* rightshift */
612 2, /* size (0 = byte, 1 = short, 2 = long) */
613 0, /* bitsize */
614 FALSE, /* pc_relative */
615 0, /* bitpos */
616 complain_overflow_dont, /* complain_on_overflow */
617 bfd_elf_generic_reloc, /* special_function */
618 "R_FRV_TLSDESC_RELAX", /* name */
619 FALSE, /* partial_inplace */
620 0, /* src_mask */
621 0, /* dst_mask */
622 FALSE), /* pcrel_offset */
623
624 /* An annotation for linker relaxation, that denotes the
625 symbol+addend whose TLS resolver entry point is given by the sum
626 of the two register operands of an calll instruction. */
627 HOWTO (R_FRV_GETTLSOFF_RELAX, /* type */
628 0, /* rightshift */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
630 0, /* bitsize */
631 FALSE, /* pc_relative */
632 0, /* bitpos */
633 complain_overflow_dont, /* complain_on_overflow */
634 bfd_elf_generic_reloc, /* special_function */
635 "R_FRV_GETTLSOFF_RELAX", /* name */
636 FALSE, /* partial_inplace */
637 0, /* src_mask */
638 0, /* dst_mask */
639 FALSE), /* pcrel_offset */
640
641 /* An annotation for linker relaxation, that denotes the
642 symbol+addend whose TLS offset GOT entry is given by the sum of
643 the two input registers of an ld instruction. */
644 HOWTO (R_FRV_TLSOFF_RELAX, /* type */
645 0, /* rightshift */
646 2, /* size (0 = byte, 1 = short, 2 = long) */
647 0, /* bitsize */
648 FALSE, /* pc_relative */
649 0, /* bitpos */
650 complain_overflow_bitfield, /* complain_on_overflow */
651 bfd_elf_generic_reloc, /* special_function */
652 "R_FRV_TLSOFF_RELAX", /* name */
653 FALSE, /* partial_inplace */
654 0, /* src_mask */
655 0, /* dst_mask */
656 FALSE), /* pcrel_offset */
657
658 /* A 32-bit offset from the module base address to
659 the thread-local symbol address. */
660 HOWTO (R_FRV_TLSMOFF, /* type */
661 0, /* rightshift */
662 2, /* size (0 = byte, 1 = short, 2 = long) */
663 32, /* bitsize */
664 FALSE, /* pc_relative */
665 0, /* bitpos */
666 complain_overflow_dont, /* complain_on_overflow */
667 bfd_elf_generic_reloc, /* special_function */
668 "R_FRV_TLSMOFF", /* name */
669 FALSE, /* partial_inplace */
670 0xffffffff, /* src_mask */
671 0xffffffff, /* dst_mask */
672 FALSE), /* pcrel_offset */
673 };
674
675 /* GNU extension to record C++ vtable hierarchy. */
676 static reloc_howto_type elf32_frv_vtinherit_howto =
677 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
678 0, /* rightshift */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
680 0, /* bitsize */
681 FALSE, /* pc_relative */
682 0, /* bitpos */
683 complain_overflow_dont, /* complain_on_overflow */
684 NULL, /* special_function */
685 "R_FRV_GNU_VTINHERIT", /* name */
686 FALSE, /* partial_inplace */
687 0, /* src_mask */
688 0, /* dst_mask */
689 FALSE); /* pcrel_offset */
690
691 /* GNU extension to record C++ vtable member usage. */
692 static reloc_howto_type elf32_frv_vtentry_howto =
693 HOWTO (R_FRV_GNU_VTENTRY, /* type */
694 0, /* rightshift */
695 2, /* size (0 = byte, 1 = short, 2 = long) */
696 0, /* bitsize */
697 FALSE, /* pc_relative */
698 0, /* bitpos */
699 complain_overflow_dont, /* complain_on_overflow */
700 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
701 "R_FRV_GNU_VTENTRY", /* name */
702 FALSE, /* partial_inplace */
703 0, /* src_mask */
704 0, /* dst_mask */
705 FALSE); /* pcrel_offset */
706
707 /* The following 3 relocations are REL. The only difference to the
708 entries in the table above are that partial_inplace is TRUE. */
709 static reloc_howto_type elf32_frv_rel_32_howto =
710 HOWTO (R_FRV_32, /* type */
711 0, /* rightshift */
712 2, /* size (0 = byte, 1 = short, 2 = long) */
713 32, /* bitsize */
714 FALSE, /* pc_relative */
715 0, /* bitpos */
716 complain_overflow_bitfield, /* complain_on_overflow */
717 bfd_elf_generic_reloc, /* special_function */
718 "R_FRV_32", /* name */
719 TRUE, /* partial_inplace */
720 0xffffffff, /* src_mask */
721 0xffffffff, /* dst_mask */
722 FALSE); /* pcrel_offset */
723
724 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
725 HOWTO (R_FRV_FUNCDESC, /* type */
726 0, /* rightshift */
727 2, /* size (0 = byte, 1 = short, 2 = long) */
728 32, /* bitsize */
729 FALSE, /* pc_relative */
730 0, /* bitpos */
731 complain_overflow_bitfield, /* complain_on_overflow */
732 bfd_elf_generic_reloc, /* special_function */
733 "R_FRV_FUNCDESC", /* name */
734 TRUE, /* partial_inplace */
735 0xffffffff, /* src_mask */
736 0xffffffff, /* dst_mask */
737 FALSE); /* pcrel_offset */
738
739 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
740 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
741 0, /* rightshift */
742 2, /* size (0 = byte, 1 = short, 2 = long) */
743 64, /* bitsize */
744 FALSE, /* pc_relative */
745 0, /* bitpos */
746 complain_overflow_bitfield, /* complain_on_overflow */
747 bfd_elf_generic_reloc, /* special_function */
748 "R_FRV_FUNCDESC_VALUE", /* name */
749 TRUE, /* partial_inplace */
750 0xffffffff, /* src_mask */
751 0xffffffff, /* dst_mask */
752 FALSE); /* pcrel_offset */
753
754 static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
755 /* A 64-bit TLS descriptor for a symbol. The first word resolves to
756 an entry point, and the second resolves to a special argument.
757 If the symbol turns out to be in static TLS, the entry point is a
758 return instruction, and the special argument is the TLS offset
759 for the symbol. If it's in dynamic TLS, the entry point is a TLS
760 offset resolver, and the special argument is a pointer to a data
761 structure allocated by the dynamic loader, containing the GOT
762 address for the offset resolver, the module id, the offset within
763 the module, and anything else the TLS offset resolver might need
764 to determine the TLS offset for the symbol in the running
765 thread. */
766 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
767 0, /* rightshift */
768 2, /* size (0 = byte, 1 = short, 2 = long) */
769 64, /* bitsize */
770 FALSE, /* pc_relative */
771 0, /* bitpos */
772 complain_overflow_bitfield, /* complain_on_overflow */
773 bfd_elf_generic_reloc, /* special_function */
774 "R_FRV_TLSDESC_VALUE", /* name */
775 TRUE, /* partial_inplace */
776 0xffffffff, /* src_mask */
777 0xffffffff, /* dst_mask */
778 FALSE); /* pcrel_offset */
779
780 static reloc_howto_type elf32_frv_rel_tlsoff_howto =
781 /* The 32-bit offset from the thread pointer (not the module base
782 address) to a thread-local symbol. */
783 HOWTO (R_FRV_TLSOFF, /* type */
784 0, /* rightshift */
785 2, /* size (0 = byte, 1 = short, 2 = long) */
786 32, /* bitsize */
787 FALSE, /* pc_relative */
788 0, /* bitpos */
789 complain_overflow_bitfield, /* complain_on_overflow */
790 bfd_elf_generic_reloc, /* special_function */
791 "R_FRV_TLSOFF", /* name */
792 TRUE, /* partial_inplace */
793 0xffffffff, /* src_mask */
794 0xffffffff, /* dst_mask */
795 FALSE); /* pcrel_offset */
796
797
798 \f
799 extern const bfd_target frv_elf32_fdpic_vec;
800 #define IS_FDPIC(bfd) ((bfd)->xvec == &frv_elf32_fdpic_vec)
801
802 /* An extension of the elf hash table data structure, containing some
803 additional FRV-specific data. */
804 struct frvfdpic_elf_link_hash_table
805 {
806 struct elf_link_hash_table elf;
807
808 /* A pointer to the .rofixup section. */
809 asection *sgotfixup;
810 /* GOT base offset. */
811 bfd_vma got0;
812 /* Location of the first non-lazy PLT entry, i.e., the number of
813 bytes taken by lazy PLT entries. If locally-bound TLS
814 descriptors require a ret instruction, it will be placed at this
815 offset. */
816 bfd_vma plt0;
817 /* A hash table holding information about which symbols were
818 referenced with which PIC-related relocations. */
819 struct htab *relocs_info;
820 /* Summary reloc information collected by
821 _frvfdpic_count_got_plt_entries. */
822 struct _frvfdpic_dynamic_got_info *g;
823 };
824
825 /* Get the FRV ELF linker hash table from a link_info structure. */
826
827 #define frvfdpic_hash_table(p) \
828 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
829 == FRV_ELF_DATA ? ((struct frvfdpic_elf_link_hash_table *) ((p)->hash)) : NULL)
830
831 #define frvfdpic_got_section(info) \
832 (frvfdpic_hash_table (info)->elf.sgot)
833 #define frvfdpic_gotrel_section(info) \
834 (frvfdpic_hash_table (info)->elf.srelgot)
835 #define frvfdpic_gotfixup_section(info) \
836 (frvfdpic_hash_table (info)->sgotfixup)
837 #define frvfdpic_plt_section(info) \
838 (frvfdpic_hash_table (info)->elf.splt)
839 #define frvfdpic_pltrel_section(info) \
840 (frvfdpic_hash_table (info)->elf.srelplt)
841 #define frvfdpic_relocs_info(info) \
842 (frvfdpic_hash_table (info)->relocs_info)
843 #define frvfdpic_got_initial_offset(info) \
844 (frvfdpic_hash_table (info)->got0)
845 #define frvfdpic_plt_initial_offset(info) \
846 (frvfdpic_hash_table (info)->plt0)
847 #define frvfdpic_dynamic_got_plt_info(info) \
848 (frvfdpic_hash_table (info)->g)
849
850 /* Currently it's the same, but if some day we have a reason to change
851 it, we'd better be using a different macro.
852
853 FIXME: if there's any TLS PLT entry that uses local-exec or
854 initial-exec models, we could use the ret at the end of any of them
855 instead of adding one more. */
856 #define frvfdpic_plt_tls_ret_offset(info) \
857 (frvfdpic_plt_initial_offset (info))
858
859 /* The name of the dynamic interpreter. This is put in the .interp
860 section. */
861
862 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
863
864 #define DEFAULT_STACK_SIZE 0x20000
865
866 /* This structure is used to collect the number of entries present in
867 each addressable range of the got. */
868 struct _frvfdpic_dynamic_got_info
869 {
870 /* Several bits of information about the current link. */
871 struct bfd_link_info *info;
872 /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
873 ranges. */
874 bfd_vma got12, gotlos, gothilo;
875 /* Total GOT size needed for function descriptor entries within the 12-,
876 16- or 32-bit ranges. */
877 bfd_vma fd12, fdlos, fdhilo;
878 /* Total GOT size needed by function descriptor entries referenced
879 in PLT entries, that would be profitable to place in offsets
880 close to the PIC register. */
881 bfd_vma fdplt;
882 /* Total PLT size needed by lazy PLT entries. */
883 bfd_vma lzplt;
884 /* Total GOT size needed for TLS descriptor entries within the 12-,
885 16- or 32-bit ranges. */
886 bfd_vma tlsd12, tlsdlos, tlsdhilo;
887 /* Total GOT size needed by TLS descriptors referenced in PLT
888 entries, that would be profitable to place in offers close to the
889 PIC register. */
890 bfd_vma tlsdplt;
891 /* Total PLT size needed by TLS lazy PLT entries. */
892 bfd_vma tlslzplt;
893 /* Number of relocations carried over from input object files. */
894 unsigned long relocs;
895 /* Number of fixups introduced by relocations in input object files. */
896 unsigned long fixups;
897 /* The number of fixups that reference the ret instruction added to
898 the PLT for locally-resolved TLS descriptors. */
899 unsigned long tls_ret_refs;
900 };
901
902 /* This structure is used to assign offsets to got entries, function
903 descriptors, plt entries and lazy plt entries. */
904
905 struct _frvfdpic_dynamic_got_plt_info
906 {
907 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
908 struct _frvfdpic_dynamic_got_info g;
909
910 /* For each addressable range, we record a MAX (positive) and MIN
911 (negative) value. CUR is used to assign got entries, and it's
912 incremented from an initial positive value to MAX, then from MIN
913 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
914 assign function descriptors, and it's decreased from an initial
915 non-positive value to MIN, then from MAX down to CUR (unless CUR
916 wraps around first). All of MIN, MAX, CUR and FDCUR always point
917 to even words. ODD, if non-zero, indicates an odd word to be
918 used for the next got entry, otherwise CUR is used and
919 incremented by a pair of words, wrapping around when it reaches
920 MAX. FDCUR is decremented (and wrapped) before the next function
921 descriptor is chosen. FDPLT indicates the number of remaining
922 slots that can be used for function descriptors used only by PLT
923 entries.
924
925 TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
926 starts as MAX, and grows up to TMAX, then wraps around to TMIN
927 and grows up to MIN. TLSDPLT indicates the number of remaining
928 slots that can be used for TLS descriptors used only by TLS PLT
929 entries. */
930 struct _frvfdpic_dynamic_got_alloc_data
931 {
932 bfd_signed_vma max, cur, odd, fdcur, min;
933 bfd_signed_vma tmax, tcur, tmin;
934 bfd_vma fdplt, tlsdplt;
935 } got12, gotlos, gothilo;
936 };
937
938 /* Create an FRV ELF linker hash table. */
939
940 static struct bfd_link_hash_table *
941 frvfdpic_elf_link_hash_table_create (bfd *abfd)
942 {
943 struct frvfdpic_elf_link_hash_table *ret;
944 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
945
946 ret = bfd_zmalloc (amt);
947 if (ret == NULL)
948 return NULL;
949
950 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
951 _bfd_elf_link_hash_newfunc,
952 sizeof (struct elf_link_hash_entry),
953 FRV_ELF_DATA))
954 {
955 free (ret);
956 return NULL;
957 }
958
959 return &ret->elf.root;
960 }
961
962 /* Decide whether a reference to a symbol can be resolved locally or
963 not. If the symbol is protected, we want the local address, but
964 its function descriptor must be assigned by the dynamic linker. */
965 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
966 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
967 || ! elf_hash_table (INFO)->dynamic_sections_created)
968 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
969 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
970
971 /* This structure collects information on what kind of GOT, PLT or
972 function descriptors are required by relocations that reference a
973 certain symbol. */
974 struct frvfdpic_relocs_info
975 {
976 /* The index of the symbol, as stored in the relocation r_info, if
977 we have a local symbol; -1 otherwise. */
978 long symndx;
979 union
980 {
981 /* The input bfd in which the symbol is defined, if it's a local
982 symbol. */
983 bfd *abfd;
984 /* If symndx == -1, the hash table entry corresponding to a global
985 symbol (even if it turns out to bind locally, in which case it
986 should ideally be replaced with section's symndx + addend). */
987 struct elf_link_hash_entry *h;
988 } d;
989 /* The addend of the relocation that references the symbol. */
990 bfd_vma addend;
991
992 /* The fields above are used to identify an entry. The fields below
993 contain information on how an entry is used and, later on, which
994 locations it was assigned. */
995 /* The following 3 fields record whether the symbol+addend above was
996 ever referenced with a GOT relocation. The 12 suffix indicates a
997 GOT12 relocation; los is used for GOTLO relocations that are not
998 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
999 pairs. */
1000 unsigned got12:1;
1001 unsigned gotlos:1;
1002 unsigned gothilo:1;
1003 /* Whether a FUNCDESC relocation references symbol+addend. */
1004 unsigned fd:1;
1005 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1006 unsigned fdgot12:1;
1007 unsigned fdgotlos:1;
1008 unsigned fdgothilo:1;
1009 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1010 unsigned fdgoff12:1;
1011 unsigned fdgofflos:1;
1012 unsigned fdgoffhilo:1;
1013 /* Whether a GETTLSOFF relocation references symbol+addend. */
1014 unsigned tlsplt:1;
1015 /* FIXME: we should probably add tlspltdesc, tlspltoff and
1016 tlspltimm, to tell what kind of TLS PLT entry we're generating.
1017 We might instead just pre-compute flags telling whether the
1018 object is suitable for local exec, initial exec or general
1019 dynamic addressing, and use that all over the place. We could
1020 also try to do a better job of merging TLSOFF and TLSDESC entries
1021 in main executables, but perhaps we can get rid of TLSDESC
1022 entirely in them instead. */
1023 /* Whether a GOTTLSDESC relocation references symbol+addend. */
1024 unsigned tlsdesc12:1;
1025 unsigned tlsdesclos:1;
1026 unsigned tlsdeschilo:1;
1027 /* Whether a GOTTLSOFF relocation references symbol+addend. */
1028 unsigned tlsoff12:1;
1029 unsigned tlsofflos:1;
1030 unsigned tlsoffhilo:1;
1031 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1032 GOTOFFHI relocations. The addend doesn't really matter, since we
1033 envision that this will only be used to check whether the symbol
1034 is mapped to the same segment as the got. */
1035 unsigned gotoff:1;
1036 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1037 unsigned call:1;
1038 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1039 relocation. */
1040 unsigned sym:1;
1041 /* Whether we need a PLT entry for a symbol. Should be implied by
1042 something like:
1043 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
1044 unsigned plt:1;
1045 /* Whether a function descriptor should be created in this link unit
1046 for symbol+addend. Should be implied by something like:
1047 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1048 || ((fd || fdgot12 || fdgotlos || fdgothilo)
1049 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
1050 unsigned privfd:1;
1051 /* Whether a lazy PLT entry is needed for this symbol+addend.
1052 Should be implied by something like:
1053 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1054 && ! (info->flags & DF_BIND_NOW)) */
1055 unsigned lazyplt:1;
1056 /* Whether we've already emitted GOT relocations and PLT entries as
1057 needed for this symbol. */
1058 unsigned done:1;
1059
1060 /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1061 R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1062 symbol+addend. */
1063 unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1064
1065 /* The number of .rofixups entries and dynamic relocations allocated
1066 for this symbol, minus any that might have already been used. */
1067 unsigned fixups, dynrelocs;
1068
1069 /* The offsets of the GOT entries assigned to symbol+addend, to the
1070 function descriptor's address, and to a function descriptor,
1071 respectively. Should be zero if unassigned. The offsets are
1072 counted from the value that will be assigned to the PIC register,
1073 not from the beginning of the .got section. */
1074 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1075 /* The offsets of the PLT entries assigned to symbol+addend,
1076 non-lazy and lazy, respectively. If unassigned, should be
1077 (bfd_vma)-1. */
1078 bfd_vma plt_entry, lzplt_entry;
1079 /* The offsets of the GOT entries for TLS offset and TLS descriptor. */
1080 bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1081 /* The offset of the TLS offset PLT entry. */
1082 bfd_vma tlsplt_entry;
1083 };
1084
1085 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
1086 static hashval_t
1087 frvfdpic_relocs_info_hash (const void *entry_)
1088 {
1089 const struct frvfdpic_relocs_info *entry = entry_;
1090
1091 return (entry->symndx == -1
1092 ? (long) entry->d.h->root.root.hash
1093 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1094 }
1095
1096 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1097 identical. */
1098 static int
1099 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1100 {
1101 const struct frvfdpic_relocs_info *e1 = entry1;
1102 const struct frvfdpic_relocs_info *e2 = entry2;
1103
1104 return e1->symndx == e2->symndx && e1->addend == e2->addend
1105 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1106 }
1107
1108 /* Find or create an entry in a hash table HT that matches the key
1109 fields of the given ENTRY. If it's not found, memory for a new
1110 entry is allocated in ABFD's obstack. */
1111 static struct frvfdpic_relocs_info *
1112 frvfdpic_relocs_info_find (struct htab *ht,
1113 bfd *abfd,
1114 const struct frvfdpic_relocs_info *entry,
1115 enum insert_option insert)
1116 {
1117 struct frvfdpic_relocs_info **loc =
1118 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1119
1120 if (! loc)
1121 return NULL;
1122
1123 if (*loc)
1124 return *loc;
1125
1126 *loc = bfd_zalloc (abfd, sizeof (**loc));
1127
1128 if (! *loc)
1129 return *loc;
1130
1131 (*loc)->symndx = entry->symndx;
1132 (*loc)->d = entry->d;
1133 (*loc)->addend = entry->addend;
1134 (*loc)->plt_entry = (bfd_vma)-1;
1135 (*loc)->lzplt_entry = (bfd_vma)-1;
1136 (*loc)->tlsplt_entry = (bfd_vma)-1;
1137
1138 return *loc;
1139 }
1140
1141 /* Obtain the address of the entry in HT associated with H's symbol +
1142 addend, creating a new entry if none existed. ABFD is only used
1143 for memory allocation purposes. */
1144 inline static struct frvfdpic_relocs_info *
1145 frvfdpic_relocs_info_for_global (struct htab *ht,
1146 bfd *abfd,
1147 struct elf_link_hash_entry *h,
1148 bfd_vma addend,
1149 enum insert_option insert)
1150 {
1151 struct frvfdpic_relocs_info entry;
1152
1153 entry.symndx = -1;
1154 entry.d.h = h;
1155 entry.addend = addend;
1156
1157 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1158 }
1159
1160 /* Obtain the address of the entry in HT associated with the SYMNDXth
1161 local symbol of the input bfd ABFD, plus the addend, creating a new
1162 entry if none existed. */
1163 inline static struct frvfdpic_relocs_info *
1164 frvfdpic_relocs_info_for_local (struct htab *ht,
1165 bfd *abfd,
1166 long symndx,
1167 bfd_vma addend,
1168 enum insert_option insert)
1169 {
1170 struct frvfdpic_relocs_info entry;
1171
1172 entry.symndx = symndx;
1173 entry.d.abfd = abfd;
1174 entry.addend = addend;
1175
1176 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1177 }
1178
1179 /* Merge fields set by check_relocs() of two entries that end up being
1180 mapped to the same (presumably global) symbol. */
1181
1182 inline static void
1183 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1184 struct frvfdpic_relocs_info const *e1)
1185 {
1186 e2->got12 |= e1->got12;
1187 e2->gotlos |= e1->gotlos;
1188 e2->gothilo |= e1->gothilo;
1189 e2->fd |= e1->fd;
1190 e2->fdgot12 |= e1->fdgot12;
1191 e2->fdgotlos |= e1->fdgotlos;
1192 e2->fdgothilo |= e1->fdgothilo;
1193 e2->fdgoff12 |= e1->fdgoff12;
1194 e2->fdgofflos |= e1->fdgofflos;
1195 e2->fdgoffhilo |= e1->fdgoffhilo;
1196 e2->tlsplt |= e1->tlsplt;
1197 e2->tlsdesc12 |= e1->tlsdesc12;
1198 e2->tlsdesclos |= e1->tlsdesclos;
1199 e2->tlsdeschilo |= e1->tlsdeschilo;
1200 e2->tlsoff12 |= e1->tlsoff12;
1201 e2->tlsofflos |= e1->tlsofflos;
1202 e2->tlsoffhilo |= e1->tlsoffhilo;
1203 e2->gotoff |= e1->gotoff;
1204 e2->call |= e1->call;
1205 e2->sym |= e1->sym;
1206 }
1207
1208 /* Every block of 65535 lazy PLT entries shares a single call to the
1209 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1210 32767, counting from 0). All other lazy PLT entries branch to it
1211 in a single instruction. */
1212
1213 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1214 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1215
1216 /* Add a dynamic relocation to the SRELOC section. */
1217
1218 inline static bfd_vma
1219 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1220 int reloc_type, long dynindx, bfd_vma addend,
1221 struct frvfdpic_relocs_info *entry)
1222 {
1223 Elf_Internal_Rela outrel;
1224 bfd_vma reloc_offset;
1225
1226 outrel.r_offset = offset;
1227 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1228 outrel.r_addend = addend;
1229
1230 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1231 BFD_ASSERT (reloc_offset < sreloc->size);
1232 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1233 sreloc->contents + reloc_offset);
1234 sreloc->reloc_count++;
1235
1236 /* If the entry's index is zero, this relocation was probably to a
1237 linkonce section that got discarded. We reserved a dynamic
1238 relocation, but it was for another entry than the one we got at
1239 the time of emitting the relocation. Unfortunately there's no
1240 simple way for us to catch this situation, since the relocation
1241 is cleared right before calling relocate_section, at which point
1242 we no longer know what the relocation used to point to. */
1243 if (entry->symndx)
1244 {
1245 BFD_ASSERT (entry->dynrelocs > 0);
1246 entry->dynrelocs--;
1247 }
1248
1249 return reloc_offset;
1250 }
1251
1252 /* Add a fixup to the ROFIXUP section. */
1253
1254 static bfd_vma
1255 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1256 struct frvfdpic_relocs_info *entry)
1257 {
1258 bfd_vma fixup_offset;
1259
1260 if (rofixup->flags & SEC_EXCLUDE)
1261 return -1;
1262
1263 fixup_offset = rofixup->reloc_count * 4;
1264 if (rofixup->contents)
1265 {
1266 BFD_ASSERT (fixup_offset < rofixup->size);
1267 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1268 }
1269 rofixup->reloc_count++;
1270
1271 if (entry && entry->symndx)
1272 {
1273 /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1274 above. */
1275 BFD_ASSERT (entry->fixups > 0);
1276 entry->fixups--;
1277 }
1278
1279 return fixup_offset;
1280 }
1281
1282 /* Find the segment number in which OSEC, and output section, is
1283 located. */
1284
1285 static unsigned
1286 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1287 {
1288 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
1289
1290 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
1291 }
1292
1293 inline static bfd_boolean
1294 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1295 {
1296 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1297
1298 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1299 }
1300
1301 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1302
1303 /* Return the base VMA address which should be subtracted from real addresses
1304 when resolving TLSMOFF relocation.
1305 This is PT_TLS segment p_vaddr, plus the 2048-16 bias. */
1306
1307 static bfd_vma
1308 tls_biased_base (struct bfd_link_info *info)
1309 {
1310 /* If tls_sec is NULL, we should have signalled an error already. */
1311 if (elf_hash_table (info)->tls_sec == NULL)
1312 return FRVFDPIC_TLS_BIAS;
1313 return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1314 }
1315
1316 /* Generate relocations for GOT entries, function descriptors, and
1317 code for PLT and lazy PLT entries. */
1318
1319 inline static bfd_boolean
1320 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1321 bfd *output_bfd,
1322 struct bfd_link_info *info,
1323 asection *sec,
1324 Elf_Internal_Sym *sym,
1325 bfd_vma addend)
1326
1327 {
1328 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1329 int dynindx = -1;
1330
1331 if (entry->done)
1332 return TRUE;
1333 entry->done = 1;
1334
1335 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1336 || entry->tlsoff_entry || entry->tlsdesc_entry)
1337 {
1338 /* If the symbol is dynamic, consider it for dynamic
1339 relocations, otherwise decay to section + offset. */
1340 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1341 dynindx = entry->d.h->dynindx;
1342 else
1343 {
1344 if (sec
1345 && sec->output_section
1346 && ! bfd_is_abs_section (sec->output_section)
1347 && ! bfd_is_und_section (sec->output_section))
1348 dynindx = elf_section_data (sec->output_section)->dynindx;
1349 else
1350 dynindx = 0;
1351 }
1352 }
1353
1354 /* Generate relocation for GOT entry pointing to the symbol. */
1355 if (entry->got_entry)
1356 {
1357 int idx = dynindx;
1358 bfd_vma ad = addend;
1359
1360 /* If the symbol is dynamic but binds locally, use
1361 section+offset. */
1362 if (sec && (entry->symndx != -1
1363 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1364 {
1365 if (entry->symndx == -1)
1366 ad += entry->d.h->root.u.def.value;
1367 else
1368 ad += sym->st_value;
1369 ad += sec->output_offset;
1370 if (sec->output_section && elf_section_data (sec->output_section))
1371 idx = elf_section_data (sec->output_section)->dynindx;
1372 else
1373 idx = 0;
1374 }
1375
1376 /* If we're linking an executable at a fixed address, we can
1377 omit the dynamic relocation as long as the symbol is local to
1378 this module. */
1379 if (bfd_link_pde (info)
1380 && (entry->symndx != -1
1381 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1382 {
1383 if (sec)
1384 ad += sec->output_section->vma;
1385 if (entry->symndx != -1
1386 || entry->d.h->root.type != bfd_link_hash_undefweak)
1387 _frvfdpic_add_rofixup (output_bfd,
1388 frvfdpic_gotfixup_section (info),
1389 frvfdpic_got_section (info)->output_section
1390 ->vma
1391 + frvfdpic_got_section (info)->output_offset
1392 + frvfdpic_got_initial_offset (info)
1393 + entry->got_entry, entry);
1394 }
1395 else
1396 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1397 _bfd_elf_section_offset
1398 (output_bfd, info,
1399 frvfdpic_got_section (info),
1400 frvfdpic_got_initial_offset (info)
1401 + entry->got_entry)
1402 + frvfdpic_got_section (info)
1403 ->output_section->vma
1404 + frvfdpic_got_section (info)->output_offset,
1405 R_FRV_32, idx, ad, entry);
1406
1407 bfd_put_32 (output_bfd, ad,
1408 frvfdpic_got_section (info)->contents
1409 + frvfdpic_got_initial_offset (info)
1410 + entry->got_entry);
1411 }
1412
1413 /* Generate relocation for GOT entry pointing to a canonical
1414 function descriptor. */
1415 if (entry->fdgot_entry)
1416 {
1417 int reloc, idx;
1418 bfd_vma ad = 0;
1419
1420 if (! (entry->symndx == -1
1421 && entry->d.h->root.type == bfd_link_hash_undefweak
1422 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1423 {
1424 /* If the symbol is dynamic and there may be dynamic symbol
1425 resolution because we are, or are linked with, a shared
1426 library, emit a FUNCDESC relocation such that the dynamic
1427 linker will allocate the function descriptor. If the
1428 symbol needs a non-local function descriptor but binds
1429 locally (e.g., its visibility is protected, emit a
1430 dynamic relocation decayed to section+offset. */
1431 if (entry->symndx == -1
1432 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1433 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1434 && !bfd_link_pde (info))
1435 {
1436 reloc = R_FRV_FUNCDESC;
1437 idx = elf_section_data (entry->d.h->root.u.def.section
1438 ->output_section)->dynindx;
1439 ad = entry->d.h->root.u.def.section->output_offset
1440 + entry->d.h->root.u.def.value;
1441 }
1442 else if (entry->symndx == -1
1443 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1444 {
1445 reloc = R_FRV_FUNCDESC;
1446 idx = dynindx;
1447 ad = addend;
1448 if (ad)
1449 {
1450 (*info->callbacks->reloc_dangerous)
1451 (info, _("relocation requires zero addend"),
1452 elf_hash_table (info)->dynobj,
1453 frvfdpic_got_section (info),
1454 entry->fdgot_entry);
1455 return FALSE;
1456 }
1457 }
1458 else
1459 {
1460 /* Otherwise, we know we have a private function descriptor,
1461 so reference it directly. */
1462 if (elf_hash_table (info)->dynamic_sections_created)
1463 BFD_ASSERT (entry->privfd);
1464 reloc = R_FRV_32;
1465 idx = elf_section_data (frvfdpic_got_section (info)
1466 ->output_section)->dynindx;
1467 ad = frvfdpic_got_section (info)->output_offset
1468 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1469 }
1470
1471 /* If there is room for dynamic symbol resolution, emit the
1472 dynamic relocation. However, if we're linking an
1473 executable at a fixed location, we won't have emitted a
1474 dynamic symbol entry for the got section, so idx will be
1475 zero, which means we can and should compute the address
1476 of the private descriptor ourselves. */
1477 if (bfd_link_pde (info)
1478 && (entry->symndx != -1
1479 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1480 {
1481 ad += frvfdpic_got_section (info)->output_section->vma;
1482 _frvfdpic_add_rofixup (output_bfd,
1483 frvfdpic_gotfixup_section (info),
1484 frvfdpic_got_section (info)
1485 ->output_section->vma
1486 + frvfdpic_got_section (info)
1487 ->output_offset
1488 + frvfdpic_got_initial_offset (info)
1489 + entry->fdgot_entry, entry);
1490 }
1491 else
1492 _frvfdpic_add_dyn_reloc (output_bfd,
1493 frvfdpic_gotrel_section (info),
1494 _bfd_elf_section_offset
1495 (output_bfd, info,
1496 frvfdpic_got_section (info),
1497 frvfdpic_got_initial_offset (info)
1498 + entry->fdgot_entry)
1499 + frvfdpic_got_section (info)
1500 ->output_section->vma
1501 + frvfdpic_got_section (info)
1502 ->output_offset,
1503 reloc, idx, ad, entry);
1504 }
1505
1506 bfd_put_32 (output_bfd, ad,
1507 frvfdpic_got_section (info)->contents
1508 + frvfdpic_got_initial_offset (info)
1509 + entry->fdgot_entry);
1510 }
1511
1512 /* Generate relocation to fill in a private function descriptor in
1513 the GOT. */
1514 if (entry->fd_entry)
1515 {
1516 int idx = dynindx;
1517 bfd_vma ad = addend;
1518 bfd_vma ofst;
1519 long lowword, highword;
1520
1521 /* If the symbol is dynamic but binds locally, use
1522 section+offset. */
1523 if (sec && (entry->symndx != -1
1524 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1525 {
1526 if (entry->symndx == -1)
1527 ad += entry->d.h->root.u.def.value;
1528 else
1529 ad += sym->st_value;
1530 ad += sec->output_offset;
1531 if (sec->output_section && elf_section_data (sec->output_section))
1532 idx = elf_section_data (sec->output_section)->dynindx;
1533 else
1534 idx = 0;
1535 }
1536
1537 /* If we're linking an executable at a fixed address, we can
1538 omit the dynamic relocation as long as the symbol is local to
1539 this module. */
1540 if (bfd_link_pde (info)
1541 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1542 {
1543 if (sec)
1544 ad += sec->output_section->vma;
1545 ofst = 0;
1546 if (entry->symndx != -1
1547 || entry->d.h->root.type != bfd_link_hash_undefweak)
1548 {
1549 _frvfdpic_add_rofixup (output_bfd,
1550 frvfdpic_gotfixup_section (info),
1551 frvfdpic_got_section (info)
1552 ->output_section->vma
1553 + frvfdpic_got_section (info)
1554 ->output_offset
1555 + frvfdpic_got_initial_offset (info)
1556 + entry->fd_entry, entry);
1557 _frvfdpic_add_rofixup (output_bfd,
1558 frvfdpic_gotfixup_section (info),
1559 frvfdpic_got_section (info)
1560 ->output_section->vma
1561 + frvfdpic_got_section (info)
1562 ->output_offset
1563 + frvfdpic_got_initial_offset (info)
1564 + entry->fd_entry + 4, entry);
1565 }
1566 }
1567 else
1568 {
1569 ofst =
1570 _frvfdpic_add_dyn_reloc (output_bfd,
1571 entry->lazyplt
1572 ? frvfdpic_pltrel_section (info)
1573 : frvfdpic_gotrel_section (info),
1574 _bfd_elf_section_offset
1575 (output_bfd, info,
1576 frvfdpic_got_section (info),
1577 frvfdpic_got_initial_offset (info)
1578 + entry->fd_entry)
1579 + frvfdpic_got_section (info)
1580 ->output_section->vma
1581 + frvfdpic_got_section (info)
1582 ->output_offset,
1583 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1584 }
1585
1586 /* If we've omitted the dynamic relocation, just emit the fixed
1587 addresses of the symbol and of the local GOT base offset. */
1588 if (bfd_link_pde (info)
1589 && sec
1590 && sec->output_section)
1591 {
1592 lowword = ad;
1593 highword = frvfdpic_got_section (info)->output_section->vma
1594 + frvfdpic_got_section (info)->output_offset
1595 + frvfdpic_got_initial_offset (info);
1596 }
1597 else if (entry->lazyplt)
1598 {
1599 if (ad)
1600 {
1601 (*info->callbacks->reloc_dangerous)
1602 (info, _("relocation requires zero addend"),
1603 elf_hash_table (info)->dynobj,
1604 frvfdpic_got_section (info),
1605 entry->fd_entry);
1606 return FALSE;
1607 }
1608
1609 fd_lazy_rel_offset = ofst;
1610
1611 /* A function descriptor used for lazy or local resolving is
1612 initialized such that its high word contains the output
1613 section index in which the PLT entries are located, and
1614 the low word contains the address of the lazy PLT entry
1615 entry point, that must be within the memory region
1616 assigned to that section. */
1617 lowword = entry->lzplt_entry + 4
1618 + frvfdpic_plt_section (info)->output_offset
1619 + frvfdpic_plt_section (info)->output_section->vma;
1620 highword = _frvfdpic_osec_to_segment
1621 (output_bfd, frvfdpic_plt_section (info)->output_section);
1622 }
1623 else
1624 {
1625 /* A function descriptor for a local function gets the index
1626 of the section. For a non-local function, it's
1627 disregarded. */
1628 lowword = ad;
1629 if (sec == NULL
1630 || (entry->symndx == -1 && entry->d.h->dynindx != -1
1631 && entry->d.h->dynindx == idx))
1632 highword = 0;
1633 else
1634 highword = _frvfdpic_osec_to_segment
1635 (output_bfd, sec->output_section);
1636 }
1637
1638 bfd_put_32 (output_bfd, lowword,
1639 frvfdpic_got_section (info)->contents
1640 + frvfdpic_got_initial_offset (info)
1641 + entry->fd_entry);
1642 bfd_put_32 (output_bfd, highword,
1643 frvfdpic_got_section (info)->contents
1644 + frvfdpic_got_initial_offset (info)
1645 + entry->fd_entry + 4);
1646 }
1647
1648 /* Generate code for the PLT entry. */
1649 if (entry->plt_entry != (bfd_vma) -1)
1650 {
1651 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1652 + entry->plt_entry;
1653
1654 BFD_ASSERT (entry->fd_entry);
1655
1656 /* Figure out what kind of PLT entry we need, depending on the
1657 location of the function descriptor within the GOT. */
1658 if (entry->fd_entry >= -(1 << (12 - 1))
1659 && entry->fd_entry < (1 << (12 - 1)))
1660 {
1661 /* lddi @(gr15, fd_entry), gr14 */
1662 bfd_put_32 (output_bfd,
1663 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1664 plt_code);
1665 plt_code += 4;
1666 }
1667 else
1668 {
1669 if (entry->fd_entry >= -(1 << (16 - 1))
1670 && entry->fd_entry < (1 << (16 - 1)))
1671 {
1672 /* setlos lo(fd_entry), gr14 */
1673 bfd_put_32 (output_bfd,
1674 0x9cfc0000
1675 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1676 plt_code);
1677 plt_code += 4;
1678 }
1679 else
1680 {
1681 /* sethi.p hi(fd_entry), gr14
1682 setlo lo(fd_entry), gr14 */
1683 bfd_put_32 (output_bfd,
1684 0x1cf80000
1685 | ((entry->fd_entry >> 16)
1686 & (((bfd_vma)1 << 16) - 1)),
1687 plt_code);
1688 plt_code += 4;
1689 bfd_put_32 (output_bfd,
1690 0x9cf40000
1691 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1692 plt_code);
1693 plt_code += 4;
1694 }
1695 /* ldd @(gr14,gr15),gr14 */
1696 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1697 plt_code += 4;
1698 }
1699 /* jmpl @(gr14,gr0) */
1700 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1701 }
1702
1703 /* Generate code for the lazy PLT entry. */
1704 if (entry->lzplt_entry != (bfd_vma) -1)
1705 {
1706 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1707 + entry->lzplt_entry;
1708 bfd_vma resolverStub_addr;
1709
1710 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1711 lzplt_code += 4;
1712
1713 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1714 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1715 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1716 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1717
1718 if (entry->lzplt_entry == resolverStub_addr)
1719 {
1720 /* This is a lazy PLT entry that includes a resolver call. */
1721 /* ldd @(gr15,gr0), gr4
1722 jmpl @(gr4,gr0) */
1723 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1724 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1725 }
1726 else
1727 {
1728 /* bra resolverStub */
1729 bfd_put_32 (output_bfd,
1730 0xc01a0000
1731 | (((resolverStub_addr - entry->lzplt_entry)
1732 / 4) & (((bfd_vma)1 << 16) - 1)),
1733 lzplt_code);
1734 }
1735 }
1736
1737 /* Generate relocation for GOT entry holding the TLS offset. */
1738 if (entry->tlsoff_entry)
1739 {
1740 int idx = dynindx;
1741 bfd_vma ad = addend;
1742
1743 if (entry->symndx != -1
1744 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1745 {
1746 /* If the symbol is dynamic but binds locally, use
1747 section+offset. */
1748 if (sec)
1749 {
1750 if (entry->symndx == -1)
1751 ad += entry->d.h->root.u.def.value;
1752 else
1753 ad += sym->st_value;
1754 ad += sec->output_offset;
1755 if (sec->output_section
1756 && elf_section_data (sec->output_section))
1757 idx = elf_section_data (sec->output_section)->dynindx;
1758 else
1759 idx = 0;
1760 }
1761 }
1762
1763 /* *ABS*+addend is special for TLS relocations, use only the
1764 addend. */
1765 if (bfd_link_executable (info)
1766 && idx == 0
1767 && (bfd_is_abs_section (sec)
1768 || bfd_is_und_section (sec)))
1769 ;
1770 /* If we're linking an executable, we can entirely omit the
1771 dynamic relocation if the symbol is local to this module. */
1772 else if (bfd_link_executable (info)
1773 && (entry->symndx != -1
1774 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1775 {
1776 if (sec)
1777 ad += sec->output_section->vma - tls_biased_base (info);
1778 }
1779 else
1780 {
1781 if (idx == 0
1782 && (bfd_is_abs_section (sec)
1783 || bfd_is_und_section (sec)))
1784 {
1785 if (! elf_hash_table (info)->tls_sec)
1786 {
1787 (*info->callbacks->undefined_symbol)
1788 (info, "TLS section", elf_hash_table (info)->dynobj,
1789 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1790 return FALSE;
1791 }
1792 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1793 ad += FRVFDPIC_TLS_BIAS;
1794 }
1795 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1796 _bfd_elf_section_offset
1797 (output_bfd, info,
1798 frvfdpic_got_section (info),
1799 frvfdpic_got_initial_offset (info)
1800 + entry->tlsoff_entry)
1801 + frvfdpic_got_section (info)
1802 ->output_section->vma
1803 + frvfdpic_got_section (info)
1804 ->output_offset,
1805 R_FRV_TLSOFF, idx, ad, entry);
1806 }
1807
1808 bfd_put_32 (output_bfd, ad,
1809 frvfdpic_got_section (info)->contents
1810 + frvfdpic_got_initial_offset (info)
1811 + entry->tlsoff_entry);
1812 }
1813
1814 if (entry->tlsdesc_entry)
1815 {
1816 int idx = dynindx;
1817 bfd_vma ad = addend;
1818
1819 /* If the symbol is dynamic but binds locally, use
1820 section+offset. */
1821 if (sec && (entry->symndx != -1
1822 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1823 {
1824 if (entry->symndx == -1)
1825 ad += entry->d.h->root.u.def.value;
1826 else
1827 ad += sym->st_value;
1828 ad += sec->output_offset;
1829 if (sec->output_section && elf_section_data (sec->output_section))
1830 idx = elf_section_data (sec->output_section)->dynindx;
1831 else
1832 idx = 0;
1833 }
1834
1835 /* If we didn't set up a TLS offset entry, but we're linking an
1836 executable and the symbol binds locally, we can use the
1837 module offset in the TLS descriptor in relaxations. */
1838 if (bfd_link_executable (info) && ! entry->tlsoff_entry)
1839 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1840
1841 if (bfd_link_pde (info)
1842 && ((idx == 0
1843 && (bfd_is_abs_section (sec)
1844 || bfd_is_und_section (sec)))
1845 || entry->symndx != -1
1846 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1847 {
1848 /* *ABS*+addend is special for TLS relocations, use only the
1849 addend for the TLS offset, and take the module id as
1850 0. */
1851 if (idx == 0
1852 && (bfd_is_abs_section (sec)
1853 || bfd_is_und_section (sec)))
1854 ;
1855 /* For other TLS symbols that bind locally, add the section
1856 TLS offset to the addend. */
1857 else if (sec)
1858 ad += sec->output_section->vma - tls_biased_base (info);
1859
1860 bfd_put_32 (output_bfd,
1861 frvfdpic_plt_section (info)->output_section->vma
1862 + frvfdpic_plt_section (info)->output_offset
1863 + frvfdpic_plt_tls_ret_offset (info),
1864 frvfdpic_got_section (info)->contents
1865 + frvfdpic_got_initial_offset (info)
1866 + entry->tlsdesc_entry);
1867
1868 _frvfdpic_add_rofixup (output_bfd,
1869 frvfdpic_gotfixup_section (info),
1870 frvfdpic_got_section (info)
1871 ->output_section->vma
1872 + frvfdpic_got_section (info)
1873 ->output_offset
1874 + frvfdpic_got_initial_offset (info)
1875 + entry->tlsdesc_entry, entry);
1876
1877 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1878
1879 /* We've used one of the reserved fixups, so discount it so
1880 that we can check at the end that we've used them
1881 all. */
1882 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1883
1884 /* While at that, make sure the ret instruction makes to the
1885 right location in the PLT. We could do it only when we
1886 got to 0, but since the check at the end will only print
1887 a warning, make sure we have the ret in place in case the
1888 warning is missed. */
1889 bfd_put_32 (output_bfd, 0xc03a4000,
1890 frvfdpic_plt_section (info)->contents
1891 + frvfdpic_plt_tls_ret_offset (info));
1892 }
1893 else
1894 {
1895 if (idx == 0
1896 && (bfd_is_abs_section (sec)
1897 || bfd_is_und_section (sec)))
1898 {
1899 if (! elf_hash_table (info)->tls_sec)
1900 {
1901 (*info->callbacks->undefined_symbol)
1902 (info, "TLS section", elf_hash_table (info)->dynobj,
1903 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1904 return FALSE;
1905 }
1906 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1907 ad += FRVFDPIC_TLS_BIAS;
1908 }
1909
1910 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1911 _bfd_elf_section_offset
1912 (output_bfd, info,
1913 frvfdpic_got_section (info),
1914 frvfdpic_got_initial_offset (info)
1915 + entry->tlsdesc_entry)
1916 + frvfdpic_got_section (info)
1917 ->output_section->vma
1918 + frvfdpic_got_section (info)
1919 ->output_offset,
1920 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1921
1922 bfd_put_32 (output_bfd, 0,
1923 frvfdpic_got_section (info)->contents
1924 + frvfdpic_got_initial_offset (info)
1925 + entry->tlsdesc_entry);
1926 }
1927
1928 bfd_put_32 (output_bfd, ad,
1929 frvfdpic_got_section (info)->contents
1930 + frvfdpic_got_initial_offset (info)
1931 + entry->tlsdesc_entry + 4);
1932 }
1933
1934 /* Generate code for the get-TLS-offset PLT entry. */
1935 if (entry->tlsplt_entry != (bfd_vma) -1)
1936 {
1937 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1938 + entry->tlsplt_entry;
1939
1940 if (bfd_link_executable (info)
1941 && (entry->symndx != -1
1942 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1943 {
1944 int idx = dynindx;
1945 bfd_vma ad = addend;
1946
1947 /* sec may be NULL when referencing an undefweak symbol
1948 while linking a static executable. */
1949 if (!sec)
1950 {
1951 BFD_ASSERT (entry->symndx == -1
1952 && entry->d.h->root.type == bfd_link_hash_undefweak);
1953 }
1954 else
1955 {
1956 if (entry->symndx == -1)
1957 ad += entry->d.h->root.u.def.value;
1958 else
1959 ad += sym->st_value;
1960 ad += sec->output_offset;
1961 if (sec->output_section
1962 && elf_section_data (sec->output_section))
1963 idx = elf_section_data (sec->output_section)->dynindx;
1964 else
1965 idx = 0;
1966 }
1967
1968 /* *ABS*+addend is special for TLS relocations, use only the
1969 addend for the TLS offset, and take the module id as
1970 0. */
1971 if (idx == 0
1972 && (bfd_is_abs_section (sec)
1973 || bfd_is_und_section (sec)))
1974 ;
1975 /* For other TLS symbols that bind locally, add the section
1976 TLS offset to the addend. */
1977 else if (sec)
1978 ad += sec->output_section->vma - tls_biased_base (info);
1979
1980 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
1981 && (bfd_signed_vma)ad < (1 << (16 - 1)))
1982 {
1983 /* setlos lo(ad), gr9 */
1984 bfd_put_32 (output_bfd,
1985 0x92fc0000
1986 | (ad
1987 & (((bfd_vma)1 << 16) - 1)),
1988 plt_code);
1989 plt_code += 4;
1990 }
1991 else
1992 {
1993 /* sethi.p hi(ad), gr9
1994 setlo lo(ad), gr9 */
1995 bfd_put_32 (output_bfd,
1996 0x12f80000
1997 | ((ad >> 16)
1998 & (((bfd_vma)1 << 16) - 1)),
1999 plt_code);
2000 plt_code += 4;
2001 bfd_put_32 (output_bfd,
2002 0x92f40000
2003 | (ad
2004 & (((bfd_vma)1 << 16) - 1)),
2005 plt_code);
2006 plt_code += 4;
2007 }
2008 /* ret */
2009 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2010 }
2011 else if (entry->tlsoff_entry)
2012 {
2013 /* Figure out what kind of PLT entry we need, depending on the
2014 location of the TLS descriptor within the GOT. */
2015 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2016 && entry->tlsoff_entry < (1 << (12 - 1)))
2017 {
2018 /* ldi @(gr15, tlsoff_entry), gr9 */
2019 bfd_put_32 (output_bfd,
2020 0x92c8f000 | (entry->tlsoff_entry
2021 & ((1 << 12) - 1)),
2022 plt_code);
2023 plt_code += 4;
2024 }
2025 else
2026 {
2027 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2028 && entry->tlsoff_entry < (1 << (16 - 1)))
2029 {
2030 /* setlos lo(tlsoff_entry), gr8 */
2031 bfd_put_32 (output_bfd,
2032 0x90fc0000
2033 | (entry->tlsoff_entry
2034 & (((bfd_vma)1 << 16) - 1)),
2035 plt_code);
2036 plt_code += 4;
2037 }
2038 else
2039 {
2040 /* sethi.p hi(tlsoff_entry), gr8
2041 setlo lo(tlsoff_entry), gr8 */
2042 bfd_put_32 (output_bfd,
2043 0x10f80000
2044 | ((entry->tlsoff_entry >> 16)
2045 & (((bfd_vma)1 << 16) - 1)),
2046 plt_code);
2047 plt_code += 4;
2048 bfd_put_32 (output_bfd,
2049 0x90f40000
2050 | (entry->tlsoff_entry
2051 & (((bfd_vma)1 << 16) - 1)),
2052 plt_code);
2053 plt_code += 4;
2054 }
2055 /* ld @(gr15,gr8),gr9 */
2056 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2057 plt_code += 4;
2058 }
2059 /* ret */
2060 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2061 }
2062 else
2063 {
2064 BFD_ASSERT (entry->tlsdesc_entry);
2065
2066 /* Figure out what kind of PLT entry we need, depending on the
2067 location of the TLS descriptor within the GOT. */
2068 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2069 && entry->tlsdesc_entry < (1 << (12 - 1)))
2070 {
2071 /* lddi @(gr15, tlsdesc_entry), gr8 */
2072 bfd_put_32 (output_bfd,
2073 0x90ccf000 | (entry->tlsdesc_entry
2074 & ((1 << 12) - 1)),
2075 plt_code);
2076 plt_code += 4;
2077 }
2078 else
2079 {
2080 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2081 && entry->tlsdesc_entry < (1 << (16 - 1)))
2082 {
2083 /* setlos lo(tlsdesc_entry), gr8 */
2084 bfd_put_32 (output_bfd,
2085 0x90fc0000
2086 | (entry->tlsdesc_entry
2087 & (((bfd_vma)1 << 16) - 1)),
2088 plt_code);
2089 plt_code += 4;
2090 }
2091 else
2092 {
2093 /* sethi.p hi(tlsdesc_entry), gr8
2094 setlo lo(tlsdesc_entry), gr8 */
2095 bfd_put_32 (output_bfd,
2096 0x10f80000
2097 | ((entry->tlsdesc_entry >> 16)
2098 & (((bfd_vma)1 << 16) - 1)),
2099 plt_code);
2100 plt_code += 4;
2101 bfd_put_32 (output_bfd,
2102 0x90f40000
2103 | (entry->tlsdesc_entry
2104 & (((bfd_vma)1 << 16) - 1)),
2105 plt_code);
2106 plt_code += 4;
2107 }
2108 /* ldd @(gr15,gr8),gr8 */
2109 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2110 plt_code += 4;
2111 }
2112 /* jmpl @(gr8,gr0) */
2113 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2114 }
2115 }
2116
2117 return TRUE;
2118 }
2119
2120 /* Handle an FRV small data reloc. */
2121
2122 static bfd_reloc_status_type
2123 elf32_frv_relocate_gprel12 (struct bfd_link_info *info,
2124 bfd *input_bfd,
2125 asection *input_section,
2126 Elf_Internal_Rela *relocation,
2127 bfd_byte *contents,
2128 bfd_vma value)
2129 {
2130 bfd_vma insn;
2131 bfd_vma gp;
2132 struct bfd_link_hash_entry *h;
2133
2134 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2135
2136 gp = (h->u.def.value
2137 + h->u.def.section->output_section->vma
2138 + h->u.def.section->output_offset);
2139
2140 value -= input_section->output_section->vma;
2141 value -= (gp - input_section->output_section->vma);
2142
2143 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2144
2145 value += relocation->r_addend;
2146
2147 if ((long) value > 0x7ff || (long) value < -0x800)
2148 return bfd_reloc_overflow;
2149
2150 bfd_put_32 (input_bfd,
2151 (insn & 0xfffff000) | (value & 0xfff),
2152 contents + relocation->r_offset);
2153
2154 return bfd_reloc_ok;
2155 }
2156
2157 /* Handle an FRV small data reloc. for the u12 field. */
2158
2159 static bfd_reloc_status_type
2160 elf32_frv_relocate_gprelu12 (struct bfd_link_info *info,
2161 bfd *input_bfd,
2162 asection *input_section,
2163 Elf_Internal_Rela *relocation,
2164 bfd_byte *contents,
2165 bfd_vma value)
2166 {
2167 bfd_vma insn;
2168 bfd_vma gp;
2169 struct bfd_link_hash_entry *h;
2170 bfd_vma mask;
2171
2172 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2173
2174 gp = (h->u.def.value
2175 + h->u.def.section->output_section->vma
2176 + h->u.def.section->output_offset);
2177
2178 value -= input_section->output_section->vma;
2179 value -= (gp - input_section->output_section->vma);
2180
2181 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2182
2183 value += relocation->r_addend;
2184
2185 if ((long) value > 0x7ff || (long) value < -0x800)
2186 return bfd_reloc_overflow;
2187
2188 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2189 mask = 0x3f03f;
2190 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2191
2192 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2193
2194 return bfd_reloc_ok;
2195 }
2196
2197 /* Handle an FRV ELF HI16 reloc. */
2198
2199 static bfd_reloc_status_type
2200 elf32_frv_relocate_hi16 (bfd *input_bfd,
2201 Elf_Internal_Rela *relhi,
2202 bfd_byte *contents,
2203 bfd_vma value)
2204 {
2205 bfd_vma insn;
2206
2207 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2208
2209 value += relhi->r_addend;
2210 value = ((value >> 16) & 0xffff);
2211
2212 insn = (insn & 0xffff0000) | value;
2213
2214 if ((long) value > 0xffff || (long) value < -0x10000)
2215 return bfd_reloc_overflow;
2216
2217 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2218 return bfd_reloc_ok;
2219
2220 }
2221 static bfd_reloc_status_type
2222 elf32_frv_relocate_lo16 (bfd *input_bfd,
2223 Elf_Internal_Rela *rello,
2224 bfd_byte *contents,
2225 bfd_vma value)
2226 {
2227 bfd_vma insn;
2228
2229 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2230
2231 value += rello->r_addend;
2232 value = value & 0xffff;
2233
2234 insn = (insn & 0xffff0000) | value;
2235
2236 if ((long) value > 0xffff || (long) value < -0x10000)
2237 return bfd_reloc_overflow;
2238
2239 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2240 return bfd_reloc_ok;
2241 }
2242
2243 /* Perform the relocation for the CALL label24 instruction. */
2244
2245 static bfd_reloc_status_type
2246 elf32_frv_relocate_label24 (bfd *input_bfd,
2247 asection *input_section,
2248 Elf_Internal_Rela *rello,
2249 bfd_byte *contents,
2250 bfd_vma value)
2251 {
2252 bfd_vma insn;
2253 bfd_vma label6;
2254 bfd_vma label18;
2255
2256 /* The format for the call instruction is:
2257
2258 0 000000 0001111 000000000000000000
2259 label6 opcode label18
2260
2261 The branch calculation is: pc + (4*label24)
2262 where label24 is the concatenation of label6 and label18. */
2263
2264 /* Grab the instruction. */
2265 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2266
2267 value -= input_section->output_section->vma + input_section->output_offset;
2268 value -= rello->r_offset;
2269 value += rello->r_addend;
2270
2271 value = value >> 2;
2272
2273 label6 = value & 0xfc0000;
2274 label6 = label6 << 7;
2275
2276 label18 = value & 0x3ffff;
2277
2278 insn = insn & 0x803c0000;
2279 insn = insn | label6;
2280 insn = insn | label18;
2281
2282 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2283
2284 return bfd_reloc_ok;
2285 }
2286
2287 static bfd_reloc_status_type
2288 elf32_frv_relocate_gprelhi (struct bfd_link_info *info,
2289 bfd *input_bfd,
2290 asection *input_section,
2291 Elf_Internal_Rela *relocation,
2292 bfd_byte *contents,
2293 bfd_vma value)
2294 {
2295 bfd_vma insn;
2296 bfd_vma gp;
2297 struct bfd_link_hash_entry *h;
2298
2299 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2300
2301 gp = (h->u.def.value
2302 + h->u.def.section->output_section->vma
2303 + h->u.def.section->output_offset);
2304
2305 value -= input_section->output_section->vma;
2306 value -= (gp - input_section->output_section->vma);
2307 value += relocation->r_addend;
2308 value = ((value >> 16) & 0xffff);
2309
2310 if ((long) value > 0xffff || (long) value < -0x10000)
2311 return bfd_reloc_overflow;
2312
2313 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2314 insn = (insn & 0xffff0000) | value;
2315
2316 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2317 return bfd_reloc_ok;
2318 }
2319
2320 static bfd_reloc_status_type
2321 elf32_frv_relocate_gprello (struct bfd_link_info *info,
2322 bfd *input_bfd,
2323 asection *input_section,
2324 Elf_Internal_Rela *relocation,
2325 bfd_byte *contents,
2326 bfd_vma value)
2327 {
2328 bfd_vma insn;
2329 bfd_vma gp;
2330 struct bfd_link_hash_entry *h;
2331
2332 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2333
2334 gp = (h->u.def.value
2335 + h->u.def.section->output_section->vma
2336 + h->u.def.section->output_offset);
2337
2338 value -= input_section->output_section->vma;
2339 value -= (gp - input_section->output_section->vma);
2340 value += relocation->r_addend;
2341 value = value & 0xffff;
2342
2343 if ((long) value > 0xffff || (long) value < -0x10000)
2344 return bfd_reloc_overflow;
2345
2346 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2347 insn = (insn & 0xffff0000) | value;
2348
2349 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2350
2351 return bfd_reloc_ok;
2352 }
2353
2354 static reloc_howto_type *
2355 frv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2356 bfd_reloc_code_real_type code)
2357 {
2358 switch (code)
2359 {
2360 default:
2361 break;
2362
2363 case BFD_RELOC_NONE:
2364 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2365
2366 case BFD_RELOC_32:
2367 if (elf_elfheader (abfd)->e_type == ET_EXEC
2368 || elf_elfheader (abfd)->e_type == ET_DYN)
2369 return &elf32_frv_rel_32_howto;
2370 /* Fall through. */
2371 case BFD_RELOC_CTOR:
2372 return &elf32_frv_howto_table[ (int) R_FRV_32];
2373
2374 case BFD_RELOC_FRV_LABEL16:
2375 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2376
2377 case BFD_RELOC_FRV_LABEL24:
2378 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2379
2380 case BFD_RELOC_FRV_LO16:
2381 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2382
2383 case BFD_RELOC_FRV_HI16:
2384 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2385
2386 case BFD_RELOC_FRV_GPREL12:
2387 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2388
2389 case BFD_RELOC_FRV_GPRELU12:
2390 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2391
2392 case BFD_RELOC_FRV_GPREL32:
2393 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2394
2395 case BFD_RELOC_FRV_GPRELHI:
2396 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2397
2398 case BFD_RELOC_FRV_GPRELLO:
2399 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2400
2401 case BFD_RELOC_FRV_GOT12:
2402 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2403
2404 case BFD_RELOC_FRV_GOTHI:
2405 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2406
2407 case BFD_RELOC_FRV_GOTLO:
2408 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2409
2410 case BFD_RELOC_FRV_FUNCDESC:
2411 if (elf_elfheader (abfd)->e_type == ET_EXEC
2412 || elf_elfheader (abfd)->e_type == ET_DYN)
2413 return &elf32_frv_rel_funcdesc_howto;
2414 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2415
2416 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2417 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2418
2419 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2420 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2421
2422 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2423 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2424
2425 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2426 if (elf_elfheader (abfd)->e_type == ET_EXEC
2427 || elf_elfheader (abfd)->e_type == ET_DYN)
2428 return &elf32_frv_rel_funcdesc_value_howto;
2429 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2430
2431 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2432 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2433
2434 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2435 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2436
2437 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2438 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2439
2440 case BFD_RELOC_FRV_GOTOFF12:
2441 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2442
2443 case BFD_RELOC_FRV_GOTOFFHI:
2444 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2445
2446 case BFD_RELOC_FRV_GOTOFFLO:
2447 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2448
2449 case BFD_RELOC_FRV_GETTLSOFF:
2450 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2451
2452 case BFD_RELOC_FRV_TLSDESC_VALUE:
2453 if (elf_elfheader (abfd)->e_type == ET_EXEC
2454 || elf_elfheader (abfd)->e_type == ET_DYN)
2455 return &elf32_frv_rel_tlsdesc_value_howto;
2456 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2457
2458 case BFD_RELOC_FRV_GOTTLSDESC12:
2459 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2460
2461 case BFD_RELOC_FRV_GOTTLSDESCHI:
2462 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2463
2464 case BFD_RELOC_FRV_GOTTLSDESCLO:
2465 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2466
2467 case BFD_RELOC_FRV_TLSMOFF12:
2468 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2469
2470 case BFD_RELOC_FRV_TLSMOFFHI:
2471 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2472
2473 case BFD_RELOC_FRV_TLSMOFFLO:
2474 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2475
2476 case BFD_RELOC_FRV_GOTTLSOFF12:
2477 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2478
2479 case BFD_RELOC_FRV_GOTTLSOFFHI:
2480 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2481
2482 case BFD_RELOC_FRV_GOTTLSOFFLO:
2483 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2484
2485 case BFD_RELOC_FRV_TLSOFF:
2486 if (elf_elfheader (abfd)->e_type == ET_EXEC
2487 || elf_elfheader (abfd)->e_type == ET_DYN)
2488 return &elf32_frv_rel_tlsoff_howto;
2489 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2490
2491 case BFD_RELOC_FRV_TLSDESC_RELAX:
2492 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2493
2494 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2495 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2496
2497 case BFD_RELOC_FRV_TLSOFF_RELAX:
2498 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2499
2500 case BFD_RELOC_FRV_TLSMOFF:
2501 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2502
2503 case BFD_RELOC_VTABLE_INHERIT:
2504 return &elf32_frv_vtinherit_howto;
2505
2506 case BFD_RELOC_VTABLE_ENTRY:
2507 return &elf32_frv_vtentry_howto;
2508 }
2509
2510 return NULL;
2511 }
2512
2513 static reloc_howto_type *
2514 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2515 {
2516 unsigned int i;
2517
2518 for (i = 0;
2519 i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2520 i++)
2521 if (elf32_frv_howto_table[i].name != NULL
2522 && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2523 return &elf32_frv_howto_table[i];
2524
2525 if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2526 return &elf32_frv_vtinherit_howto;
2527 if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2528 return &elf32_frv_vtentry_howto;
2529
2530 return NULL;
2531 }
2532
2533 /* Set the howto pointer for an FRV ELF reloc. */
2534
2535 static bfd_boolean
2536 frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2537 arelent *cache_ptr,
2538 Elf_Internal_Rela *dst)
2539 {
2540 unsigned int r_type;
2541
2542 r_type = ELF32_R_TYPE (dst->r_info);
2543 switch (r_type)
2544 {
2545 case R_FRV_GNU_VTINHERIT:
2546 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2547 break;
2548
2549 case R_FRV_GNU_VTENTRY:
2550 cache_ptr->howto = &elf32_frv_vtentry_howto;
2551 break;
2552
2553 default:
2554 if (r_type >= (unsigned int) R_FRV_max)
2555 {
2556 /* xgettext:c-format */
2557 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
2558 abfd, r_type);
2559 bfd_set_error (bfd_error_bad_value);
2560 return FALSE;
2561 }
2562 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2563 break;
2564 }
2565 return TRUE;
2566 }
2567
2568 /* Set the howto pointer for an FRV ELF REL reloc. */
2569
2570 static bfd_boolean
2571 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2572 arelent *cache_ptr, Elf_Internal_Rela *dst)
2573 {
2574 unsigned int r_type;
2575
2576 r_type = ELF32_R_TYPE (dst->r_info);
2577 switch (r_type)
2578 {
2579 case R_FRV_32:
2580 cache_ptr->howto = &elf32_frv_rel_32_howto;
2581 break;
2582
2583 case R_FRV_FUNCDESC:
2584 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2585 break;
2586
2587 case R_FRV_FUNCDESC_VALUE:
2588 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2589 break;
2590
2591 case R_FRV_TLSDESC_VALUE:
2592 cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2593 break;
2594
2595 case R_FRV_TLSOFF:
2596 cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2597 break;
2598
2599 default:
2600 cache_ptr->howto = NULL;
2601 return FALSE;
2602 }
2603 return TRUE;
2604 }
2605 \f
2606 /* Perform a single relocation. By default we use the standard BFD
2607 routines, but a few relocs, we have to do them ourselves. */
2608
2609 static bfd_reloc_status_type
2610 frv_final_link_relocate (reloc_howto_type *howto,
2611 bfd *input_bfd,
2612 asection *input_section,
2613 bfd_byte *contents,
2614 Elf_Internal_Rela *rel,
2615 bfd_vma relocation)
2616 {
2617 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2618 contents, rel->r_offset, relocation,
2619 rel->r_addend);
2620 }
2621
2622 \f
2623 /* Relocate an FRV ELF section.
2624
2625 The RELOCATE_SECTION function is called by the new ELF backend linker
2626 to handle the relocations for a section.
2627
2628 The relocs are always passed as Rela structures; if the section
2629 actually uses Rel structures, the r_addend field will always be
2630 zero.
2631
2632 This function is responsible for adjusting the section contents as
2633 necessary, and (if using Rela relocs and generating a relocatable
2634 output file) adjusting the reloc addend as necessary.
2635
2636 This function does not have to worry about setting the reloc
2637 address or the reloc symbol index.
2638
2639 LOCAL_SYMS is a pointer to the swapped in local symbols.
2640
2641 LOCAL_SECTIONS is an array giving the section in the input file
2642 corresponding to the st_shndx field of each local symbol.
2643
2644 The global hash table entry for the global symbols can be found
2645 via elf_sym_hashes (input_bfd).
2646
2647 When generating relocatable output, this function must handle
2648 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2649 going to be the section symbol corresponding to the output
2650 section, which means that the addend must be adjusted
2651 accordingly. */
2652
2653 static bfd_boolean
2654 elf32_frv_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2655 struct bfd_link_info *info,
2656 bfd *input_bfd,
2657 asection *input_section,
2658 bfd_byte *contents,
2659 Elf_Internal_Rela *relocs,
2660 Elf_Internal_Sym *local_syms,
2661 asection **local_sections)
2662 {
2663 Elf_Internal_Shdr *symtab_hdr;
2664 struct elf_link_hash_entry **sym_hashes;
2665 Elf_Internal_Rela *rel;
2666 Elf_Internal_Rela *relend;
2667 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2668 check_segment[2];
2669 int silence_segment_error = !bfd_link_pic (info);
2670 unsigned long insn;
2671
2672 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2673 sym_hashes = elf_sym_hashes (input_bfd);
2674 relend = relocs + input_section->reloc_count;
2675
2676 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2677 input_section->output_section);
2678 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2679 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2680 frvfdpic_got_section (info)
2681 ->output_section);
2682 else
2683 got_segment = -1;
2684 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2685 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2686 frvfdpic_gotfixup_section (info)
2687 ->output_section);
2688 else
2689 gprel_segment = -1;
2690 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2691 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2692 frvfdpic_plt_section (info)
2693 ->output_section);
2694 else
2695 plt_segment = -1;
2696 if (elf_hash_table (info)->tls_sec)
2697 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2698 elf_hash_table (info)->tls_sec);
2699 else
2700 tls_segment = -1;
2701
2702 for (rel = relocs; rel < relend; rel ++)
2703 {
2704 reloc_howto_type *howto;
2705 unsigned long r_symndx;
2706 Elf_Internal_Sym *sym;
2707 asection *sec;
2708 struct elf_link_hash_entry *h;
2709 bfd_vma relocation;
2710 bfd_reloc_status_type r;
2711 const char *name;
2712 int r_type;
2713 asection *osec;
2714 struct frvfdpic_relocs_info *picrel;
2715 bfd_vma orig_addend = rel->r_addend;
2716
2717 r_type = ELF32_R_TYPE (rel->r_info);
2718
2719 if ( r_type == R_FRV_GNU_VTINHERIT
2720 || r_type == R_FRV_GNU_VTENTRY)
2721 continue;
2722
2723 r_symndx = ELF32_R_SYM (rel->r_info);
2724 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2725 h = NULL;
2726 sym = NULL;
2727 sec = NULL;
2728
2729 if (r_symndx < symtab_hdr->sh_info)
2730 {
2731 sym = local_syms + r_symndx;
2732 osec = sec = local_sections [r_symndx];
2733 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2734
2735 name = bfd_elf_string_from_elf_section
2736 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2737 if (name == NULL || name[0] == 0)
2738 name = bfd_section_name (input_bfd, sec);
2739 }
2740 else
2741 {
2742 bfd_boolean warned, ignored;
2743 bfd_boolean unresolved_reloc;
2744
2745 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2746 r_symndx, symtab_hdr, sym_hashes,
2747 h, sec, relocation,
2748 unresolved_reloc, warned, ignored);
2749 osec = sec;
2750 name = h->root.root.string;
2751 }
2752
2753 if (sec != NULL && discarded_section (sec))
2754 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2755 rel, 1, relend, howto, 0, contents);
2756
2757 if (bfd_link_relocatable (info))
2758 continue;
2759
2760 if (r_type != R_FRV_TLSMOFF
2761 && h != NULL
2762 && (h->root.type == bfd_link_hash_defined
2763 || h->root.type == bfd_link_hash_defweak)
2764 && !FRVFDPIC_SYM_LOCAL (info, h))
2765 {
2766 osec = sec = NULL;
2767 relocation = 0;
2768 }
2769
2770 switch (r_type)
2771 {
2772 case R_FRV_LABEL24:
2773 case R_FRV_32:
2774 if (! IS_FDPIC (output_bfd))
2775 goto non_fdpic;
2776 /* Fall through. */
2777
2778 case R_FRV_GOT12:
2779 case R_FRV_GOTHI:
2780 case R_FRV_GOTLO:
2781 case R_FRV_FUNCDESC_GOT12:
2782 case R_FRV_FUNCDESC_GOTHI:
2783 case R_FRV_FUNCDESC_GOTLO:
2784 case R_FRV_GOTOFF12:
2785 case R_FRV_GOTOFFHI:
2786 case R_FRV_GOTOFFLO:
2787 case R_FRV_FUNCDESC_GOTOFF12:
2788 case R_FRV_FUNCDESC_GOTOFFHI:
2789 case R_FRV_FUNCDESC_GOTOFFLO:
2790 case R_FRV_FUNCDESC:
2791 case R_FRV_FUNCDESC_VALUE:
2792 case R_FRV_GETTLSOFF:
2793 case R_FRV_TLSDESC_VALUE:
2794 case R_FRV_GOTTLSDESC12:
2795 case R_FRV_GOTTLSDESCHI:
2796 case R_FRV_GOTTLSDESCLO:
2797 case R_FRV_TLSMOFF12:
2798 case R_FRV_TLSMOFFHI:
2799 case R_FRV_TLSMOFFLO:
2800 case R_FRV_GOTTLSOFF12:
2801 case R_FRV_GOTTLSOFFHI:
2802 case R_FRV_GOTTLSOFFLO:
2803 case R_FRV_TLSOFF:
2804 case R_FRV_TLSDESC_RELAX:
2805 case R_FRV_GETTLSOFF_RELAX:
2806 case R_FRV_TLSOFF_RELAX:
2807 case R_FRV_TLSMOFF:
2808 if (h != NULL)
2809 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2810 (info), input_bfd, h,
2811 orig_addend, INSERT);
2812 else
2813 /* In order to find the entry we created before, we must
2814 use the original addend, not the one that may have been
2815 modified by _bfd_elf_rela_local_sym(). */
2816 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2817 (info), input_bfd, r_symndx,
2818 orig_addend, INSERT);
2819 if (! picrel)
2820 return FALSE;
2821
2822 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2823 osec, sym,
2824 rel->r_addend))
2825 {
2826 info->callbacks->einfo
2827 /* xgettext:c-format */
2828 (_("%H: relocation to `%s+%v'"
2829 " may have caused the error above\n"),
2830 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2831 return FALSE;
2832 }
2833
2834 break;
2835
2836 default:
2837 non_fdpic:
2838 picrel = NULL;
2839 if (h
2840 && ! FRVFDPIC_SYM_LOCAL (info, h)
2841 && _bfd_elf_section_offset (output_bfd, info, input_section,
2842 rel->r_offset) != (bfd_vma) -1)
2843 {
2844 info->callbacks->einfo
2845 (_("%H: relocation references symbol"
2846 " not defined in the module\n"),
2847 input_bfd, input_section, rel->r_offset);
2848 return FALSE;
2849 }
2850 break;
2851 }
2852
2853 switch (r_type)
2854 {
2855 case R_FRV_GETTLSOFF:
2856 case R_FRV_TLSDESC_VALUE:
2857 case R_FRV_GOTTLSDESC12:
2858 case R_FRV_GOTTLSDESCHI:
2859 case R_FRV_GOTTLSDESCLO:
2860 case R_FRV_TLSMOFF12:
2861 case R_FRV_TLSMOFFHI:
2862 case R_FRV_TLSMOFFLO:
2863 case R_FRV_GOTTLSOFF12:
2864 case R_FRV_GOTTLSOFFHI:
2865 case R_FRV_GOTTLSOFFLO:
2866 case R_FRV_TLSOFF:
2867 case R_FRV_TLSDESC_RELAX:
2868 case R_FRV_GETTLSOFF_RELAX:
2869 case R_FRV_TLSOFF_RELAX:
2870 case R_FRV_TLSMOFF:
2871 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2872 relocation += tls_biased_base (info);
2873 break;
2874
2875 default:
2876 break;
2877 }
2878
2879 /* Try to apply TLS relaxations. */
2880 if (1)
2881 switch (r_type)
2882 {
2883
2884 #define LOCAL_EXEC_P(info, picrel) \
2885 (bfd_link_executable (info) \
2886 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2887 #define INITIAL_EXEC_P(info, picrel) \
2888 ((bfd_link_executable (info)|| (info)->flags & DF_STATIC_TLS) \
2889 && (picrel)->tlsoff_entry)
2890
2891 #define IN_RANGE_FOR_OFST12_P(value) \
2892 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2893 #define IN_RANGE_FOR_SETLOS_P(value) \
2894 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2895 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2896 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2897
2898 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2899 (LOCAL_EXEC_P ((info), (picrel)) \
2900 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2901 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2902 (INITIAL_EXEC_P ((info), (picrel)) \
2903 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2904
2905 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2906 (LOCAL_EXEC_P ((info), (picrel)))
2907 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2908 (INITIAL_EXEC_P ((info), (picrel)))
2909
2910 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2911 (LOCAL_EXEC_P ((info), (picrel)) \
2912 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2913
2914 case R_FRV_GETTLSOFF:
2915 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2916
2917 /* Is this a call instruction? */
2918 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2919 {
2920 info->callbacks->einfo
2921 (_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
2922 input_bfd, input_section, rel->r_offset);
2923 return FALSE;
2924 }
2925
2926 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2927 relocation + rel->r_addend))
2928 {
2929 /* Replace the call instruction (except the packing bit)
2930 with setlos #tlsmofflo(symbol+offset), gr9. */
2931 insn &= (unsigned long)0x80000000;
2932 insn |= (unsigned long)0x12fc0000;
2933 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2934
2935 r_type = R_FRV_TLSMOFFLO;
2936 howto = elf32_frv_howto_table + r_type;
2937 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2938 }
2939
2940 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
2941 {
2942 /* Replace the call instruction (except the packing bit)
2943 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
2944 insn &= (unsigned long)0x80000000;
2945 insn |= (unsigned long)0x12c8f000;
2946 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2947
2948 r_type = R_FRV_GOTTLSOFF12;
2949 howto = elf32_frv_howto_table + r_type;
2950 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2951 }
2952
2953 break;
2954
2955 case R_FRV_GOTTLSDESC12:
2956 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2957
2958 /* Is this an lddi instruction? */
2959 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
2960 {
2961 info->callbacks->einfo
2962 (_("%H: R_FRV_GOTTLSDESC12"
2963 " not applied to an lddi instruction\n"),
2964 input_bfd, input_section, rel->r_offset);
2965 return FALSE;
2966 }
2967
2968 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2969 relocation + rel->r_addend)
2970 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
2971 info))
2972 {
2973 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2974 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
2975 Preserve the packing bit. */
2976 insn = (insn & (unsigned long)0x80000000)
2977 | ((insn + (unsigned long)0x02000000)
2978 & (unsigned long)0x7e000000);
2979 insn |= (unsigned long)0x00fc0000;
2980 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2981
2982 r_type = R_FRV_TLSMOFFLO;
2983 howto = elf32_frv_howto_table + r_type;
2984 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2985 }
2986
2987 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2988 relocation + rel->r_addend))
2989 {
2990 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2991 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
2992 Preserve the packing bit. */
2993 insn = (insn & (unsigned long)0x80000000)
2994 | ((insn + (unsigned long)0x02000000)
2995 & (unsigned long)0x7e000000);
2996 insn |= (unsigned long)0x00f80000;
2997 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2998
2999 r_type = R_FRV_TLSMOFFHI;
3000 howto = elf32_frv_howto_table + r_type;
3001 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3002 }
3003
3004 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3005 {
3006 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3007 with ldi @(grB, #gottlsoff12(symbol+offset),
3008 gr<C+1>. Preserve the packing bit. If gottlsoff12
3009 overflows, we'll error out, but that's sort-of ok,
3010 since we'd started with gottlsdesc12, that's actually
3011 more demanding. Compiling with -fPIE instead of
3012 -fpie would fix it; linking with --relax should fix
3013 it as well. */
3014 insn = (insn & (unsigned long)0x80cbf000)
3015 | ((insn + (unsigned long)0x02000000)
3016 & (unsigned long)0x7e000000);
3017 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3018
3019 r_type = R_FRV_GOTTLSOFF12;
3020 howto = elf32_frv_howto_table + r_type;
3021 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3022 }
3023
3024 break;
3025
3026 case R_FRV_GOTTLSDESCHI:
3027 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3028
3029 /* Is this a sethi instruction? */
3030 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3031 {
3032 info->callbacks->einfo
3033 (_("%H: R_FRV_GOTTLSDESCHI"
3034 " not applied to a sethi instruction\n"),
3035 input_bfd, input_section, rel->r_offset);
3036 return FALSE;
3037 }
3038
3039 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3040 relocation + rel->r_addend)
3041 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3042 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3043 {
3044 /* Replace sethi with a nop. Preserve the packing bit. */
3045 insn &= (unsigned long)0x80000000;
3046 insn |= (unsigned long)0x00880000;
3047 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3048
3049 /* Nothing to relocate. */
3050 continue;
3051 }
3052
3053 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3054 {
3055 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3056 r_type = R_FRV_GOTTLSOFFHI;
3057 howto = elf32_frv_howto_table + r_type;
3058 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3059 }
3060
3061 break;
3062
3063 case R_FRV_GOTTLSDESCLO:
3064 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3065
3066 /* Is this a setlo or setlos instruction? */
3067 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3068 {
3069 info->callbacks->einfo
3070 (_("%H: R_FRV_GOTTLSDESCLO"
3071 " not applied to a setlo or setlos instruction\n"),
3072 input_bfd, input_section, rel->r_offset);
3073 return FALSE;
3074 }
3075
3076 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3077 relocation + rel->r_addend)
3078 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3079 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3080 {
3081 /* Replace setlo/setlos with a nop. Preserve the
3082 packing bit. */
3083 insn &= (unsigned long)0x80000000;
3084 insn |= (unsigned long)0x00880000;
3085 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3086
3087 /* Nothing to relocate. */
3088 continue;
3089 }
3090
3091 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3092 {
3093 /* If the corresponding sethi (if it exists) decayed
3094 to a nop, make sure this becomes (or already is) a
3095 setlos, not setlo. */
3096 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3097 {
3098 insn |= (unsigned long)0x00080000;
3099 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3100 }
3101
3102 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3103 r_type = R_FRV_GOTTLSOFFLO;
3104 howto = elf32_frv_howto_table + r_type;
3105 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3106 }
3107
3108 break;
3109
3110 case R_FRV_TLSDESC_RELAX:
3111 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3112
3113 /* Is this an ldd instruction? */
3114 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3115 {
3116 info->callbacks->einfo
3117 (_("%H: R_FRV_TLSDESC_RELAX"
3118 " not applied to an ldd instruction\n"),
3119 input_bfd, input_section, rel->r_offset);
3120 return FALSE;
3121 }
3122
3123 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3124 relocation + rel->r_addend)
3125 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3126 info))
3127 {
3128 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3129 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3130 Preserve the packing bit. */
3131 insn = (insn & (unsigned long)0x80000000)
3132 | ((insn + (unsigned long)0x02000000)
3133 & (unsigned long)0x7e000000);
3134 insn |= (unsigned long)0x00fc0000;
3135 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3136
3137 r_type = R_FRV_TLSMOFFLO;
3138 howto = elf32_frv_howto_table + r_type;
3139 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3140 }
3141
3142 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3143 relocation + rel->r_addend))
3144 {
3145 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3146 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3147 Preserve the packing bit. */
3148 insn = (insn & (unsigned long)0x80000000)
3149 | ((insn + (unsigned long)0x02000000)
3150 & (unsigned long)0x7e000000);
3151 insn |= (unsigned long)0x00f80000;
3152 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3153
3154 r_type = R_FRV_TLSMOFFHI;
3155 howto = elf32_frv_howto_table + r_type;
3156 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3157 }
3158
3159 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3160 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3161 {
3162 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3163 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3164 Preserve the packing bit. */
3165 insn = (insn & (unsigned long)0x8003f000)
3166 | (unsigned long)0x00c80000
3167 | ((insn + (unsigned long)0x02000000)
3168 & (unsigned long)0x7e000000);
3169 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3170
3171 r_type = R_FRV_GOTTLSOFF12;
3172 howto = elf32_frv_howto_table + r_type;
3173 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3174 }
3175
3176 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3177 {
3178 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3179 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3180 Preserve the packing bit. */
3181 insn = (insn & (unsigned long)0x81ffffbf)
3182 | ((insn + (unsigned long)0x02000000)
3183 & (unsigned long)0x7e000000);
3184 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3185
3186 /* #tlsoff(symbol+offset) is just a relaxation
3187 annotation, so there's nothing left to
3188 relocate. */
3189 continue;
3190 }
3191
3192 break;
3193
3194 case R_FRV_GETTLSOFF_RELAX:
3195 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3196
3197 /* Is this a calll or callil instruction? */
3198 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3199 {
3200 info->callbacks->einfo
3201 (_("%H: R_FRV_GETTLSOFF_RELAX"
3202 " not applied to a calll instruction\n"),
3203 input_bfd, input_section, rel->r_offset);
3204 return FALSE;
3205 }
3206
3207 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3208 relocation + rel->r_addend)
3209 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3210 info))
3211 {
3212 /* Replace calll with a nop. Preserve the packing bit. */
3213 insn &= (unsigned long)0x80000000;
3214 insn |= (unsigned long)0x00880000;
3215 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3216
3217 /* Nothing to relocate. */
3218 continue;
3219 }
3220
3221 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3222 relocation + rel->r_addend))
3223 {
3224 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3225 Preserve the packing bit. */
3226 insn &= (unsigned long)0x80000000;
3227 insn |= (unsigned long)0x12f40000;
3228 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3229
3230 r_type = R_FRV_TLSMOFFLO;
3231 howto = elf32_frv_howto_table + r_type;
3232 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3233 }
3234
3235 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3236 {
3237 /* Replace calll with a nop. Preserve the packing bit. */
3238 insn &= (unsigned long)0x80000000;
3239 insn |= (unsigned long)0x00880000;
3240 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3241
3242 /* Nothing to relocate. */
3243 continue;
3244 }
3245
3246 break;
3247
3248 case R_FRV_GOTTLSOFF12:
3249 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3250
3251 /* Is this an ldi instruction? */
3252 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3253 {
3254 info->callbacks->einfo
3255 (_("%H: R_FRV_GOTTLSOFF12"
3256 " not applied to an ldi instruction\n"),
3257 input_bfd, input_section, rel->r_offset);
3258 return FALSE;
3259 }
3260
3261 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3262 relocation + rel->r_addend))
3263 {
3264 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3265 with setlos #tlsmofflo(symbol+offset), grC.
3266 Preserve the packing bit. */
3267 insn &= (unsigned long)0xfe000000;
3268 insn |= (unsigned long)0x00fc0000;
3269 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3270
3271 r_type = R_FRV_TLSMOFFLO;
3272 howto = elf32_frv_howto_table + r_type;
3273 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3274 }
3275
3276 break;
3277
3278 case R_FRV_GOTTLSOFFHI:
3279 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3280
3281 /* Is this a sethi instruction? */
3282 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3283 {
3284 info->callbacks->einfo
3285 (_("%H: R_FRV_GOTTLSOFFHI"
3286 " not applied to a sethi instruction\n"),
3287 input_bfd, input_section, rel->r_offset);
3288 return FALSE;
3289 }
3290
3291 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3292 relocation + rel->r_addend)
3293 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3294 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3295 {
3296 /* Replace sethi with a nop. Preserve the packing bit. */
3297 insn &= (unsigned long)0x80000000;
3298 insn |= (unsigned long)0x00880000;
3299 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3300
3301 /* Nothing to relocate. */
3302 continue;
3303 }
3304
3305 break;
3306
3307 case R_FRV_GOTTLSOFFLO:
3308 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3309
3310 /* Is this a setlo or setlos instruction? */
3311 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3312 {
3313 info->callbacks->einfo
3314 (_("%H: R_FRV_GOTTLSOFFLO"
3315 " not applied to a setlo or setlos instruction\n"),
3316 input_bfd, input_section, rel->r_offset);
3317 return FALSE;
3318 }
3319
3320 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3321 relocation + rel->r_addend)
3322 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3323 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3324 {
3325 /* Replace setlo/setlos with a nop. Preserve the
3326 packing bit. */
3327 insn &= (unsigned long)0x80000000;
3328 insn |= (unsigned long)0x00880000;
3329 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3330
3331 /* Nothing to relocate. */
3332 continue;
3333 }
3334
3335 break;
3336
3337 case R_FRV_TLSOFF_RELAX:
3338 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3339
3340 /* Is this an ld instruction? */
3341 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3342 {
3343 info->callbacks->einfo
3344 (_("%H: R_FRV_TLSOFF_RELAX"
3345 " not applied to an ld instruction\n"),
3346 input_bfd, input_section, rel->r_offset);
3347 return FALSE;
3348 }
3349
3350 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3351 relocation + rel->r_addend))
3352 {
3353 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3354 with setlos #tlsmofflo(symbol+offset), grC.
3355 Preserve the packing bit. */
3356 insn &= (unsigned long)0xfe000000;
3357 insn |= (unsigned long)0x00fc0000;
3358 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3359
3360 r_type = R_FRV_TLSMOFFLO;
3361 howto = elf32_frv_howto_table + r_type;
3362 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3363 }
3364
3365 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3366 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3367 {
3368 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3369 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3370 Preserve the packing bit. */
3371 insn = (insn & (unsigned long)0xfe03f000)
3372 | (unsigned long)0x00c80000;
3373 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3374
3375 r_type = R_FRV_GOTTLSOFF12;
3376 howto = elf32_frv_howto_table + r_type;
3377 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3378 }
3379
3380 break;
3381
3382 case R_FRV_TLSMOFFHI:
3383 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3384
3385 /* Is this a sethi instruction? */
3386 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3387 {
3388 info->callbacks->einfo
3389 (_("%H: R_FRV_TLSMOFFHI"
3390 " not applied to a sethi instruction\n"),
3391 input_bfd, input_section, rel->r_offset);
3392 return FALSE;
3393 }
3394
3395 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3396 info))
3397 {
3398 /* Replace sethi with a nop. Preserve the packing bit. */
3399 insn &= (unsigned long)0x80000000;
3400 insn |= (unsigned long)0x00880000;
3401 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3402
3403 /* Nothing to relocate. */
3404 continue;
3405 }
3406
3407 break;
3408
3409 case R_FRV_TLSMOFFLO:
3410 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3411
3412 /* Is this a setlo or setlos instruction? */
3413 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3414 {
3415 info->callbacks->einfo
3416 (_("R_FRV_TLSMOFFLO"
3417 " not applied to a setlo or setlos instruction\n"),
3418 input_bfd, input_section, rel->r_offset);
3419 return FALSE;
3420 }
3421
3422 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3423 info))
3424 /* If the corresponding sethi (if it exists) decayed
3425 to a nop, make sure this becomes (or already is) a
3426 setlos, not setlo. */
3427 {
3428 insn |= (unsigned long)0x00080000;
3429 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3430 }
3431
3432 break;
3433
3434 /*
3435 There's nothing to relax in these:
3436 R_FRV_TLSDESC_VALUE
3437 R_FRV_TLSOFF
3438 R_FRV_TLSMOFF12
3439 R_FRV_TLSMOFFHI
3440 R_FRV_TLSMOFFLO
3441 R_FRV_TLSMOFF
3442 */
3443
3444 default:
3445 break;
3446 }
3447
3448 switch (r_type)
3449 {
3450 case R_FRV_LABEL24:
3451 check_segment[0] = isec_segment;
3452 if (! IS_FDPIC (output_bfd))
3453 check_segment[1] = isec_segment;
3454 else if (picrel->plt)
3455 {
3456 relocation = frvfdpic_plt_section (info)->output_section->vma
3457 + frvfdpic_plt_section (info)->output_offset
3458 + picrel->plt_entry;
3459 check_segment[1] = plt_segment;
3460 }
3461 /* We don't want to warn on calls to undefined weak symbols,
3462 as calls to them must be protected by non-NULL tests
3463 anyway, and unprotected calls would invoke undefined
3464 behavior. */
3465 else if (picrel->symndx == -1
3466 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3467 check_segment[1] = check_segment[0];
3468 else
3469 check_segment[1] = sec
3470 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3471 : (unsigned)-1;
3472 break;
3473
3474 case R_FRV_GOT12:
3475 case R_FRV_GOTHI:
3476 case R_FRV_GOTLO:
3477 relocation = picrel->got_entry;
3478 check_segment[0] = check_segment[1] = got_segment;
3479 break;
3480
3481 case R_FRV_FUNCDESC_GOT12:
3482 case R_FRV_FUNCDESC_GOTHI:
3483 case R_FRV_FUNCDESC_GOTLO:
3484 relocation = picrel->fdgot_entry;
3485 check_segment[0] = check_segment[1] = got_segment;
3486 break;
3487
3488 case R_FRV_GOTOFFHI:
3489 case R_FRV_GOTOFF12:
3490 case R_FRV_GOTOFFLO:
3491 relocation -= frvfdpic_got_section (info)->output_section->vma
3492 + frvfdpic_got_section (info)->output_offset
3493 + frvfdpic_got_initial_offset (info);
3494 check_segment[0] = got_segment;
3495 check_segment[1] = sec
3496 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3497 : (unsigned)-1;
3498 break;
3499
3500 case R_FRV_FUNCDESC_GOTOFF12:
3501 case R_FRV_FUNCDESC_GOTOFFHI:
3502 case R_FRV_FUNCDESC_GOTOFFLO:
3503 relocation = picrel->fd_entry;
3504 check_segment[0] = check_segment[1] = got_segment;
3505 break;
3506
3507 case R_FRV_FUNCDESC:
3508 {
3509 int dynindx;
3510 bfd_vma addend = rel->r_addend;
3511
3512 if (! (h && h->root.type == bfd_link_hash_undefweak
3513 && FRVFDPIC_SYM_LOCAL (info, h)))
3514 {
3515 /* If the symbol is dynamic and there may be dynamic
3516 symbol resolution because we are or are linked with a
3517 shared library, emit a FUNCDESC relocation such that
3518 the dynamic linker will allocate the function
3519 descriptor. If the symbol needs a non-local function
3520 descriptor but binds locally (e.g., its visibility is
3521 protected, emit a dynamic relocation decayed to
3522 section+offset. */
3523 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3524 && FRVFDPIC_SYM_LOCAL (info, h)
3525 && !bfd_link_pde (info))
3526 {
3527 dynindx = elf_section_data (h->root.u.def.section
3528 ->output_section)->dynindx;
3529 addend += h->root.u.def.section->output_offset
3530 + h->root.u.def.value;
3531 }
3532 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3533 {
3534 if (addend)
3535 {
3536 info->callbacks->einfo
3537 (_("%H: %s references dynamic symbol"
3538 " with nonzero addend\n"),
3539 input_bfd, input_section, rel->r_offset,
3540 "R_FRV_FUNCDESC");
3541 return FALSE;
3542 }
3543 dynindx = h->dynindx;
3544 }
3545 else
3546 {
3547 /* Otherwise, we know we have a private function
3548 descriptor, so reference it directly. */
3549 BFD_ASSERT (picrel->privfd);
3550 r_type = R_FRV_32;
3551 dynindx = elf_section_data (frvfdpic_got_section (info)
3552 ->output_section)->dynindx;
3553 addend = frvfdpic_got_section (info)->output_offset
3554 + frvfdpic_got_initial_offset (info)
3555 + picrel->fd_entry;
3556 }
3557
3558 /* If there is room for dynamic symbol resolution, emit
3559 the dynamic relocation. However, if we're linking an
3560 executable at a fixed location, we won't have emitted a
3561 dynamic symbol entry for the got section, so idx will
3562 be zero, which means we can and should compute the
3563 address of the private descriptor ourselves. */
3564 if (bfd_link_pde (info)
3565 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3566 {
3567 addend += frvfdpic_got_section (info)->output_section->vma;
3568 if ((bfd_get_section_flags (output_bfd,
3569 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_get_section_flags (output_bfd,
3600 input_section->output_section)
3601 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3602 {
3603 bfd_vma offset;
3604
3605 if (_frvfdpic_osec_readonly_p (output_bfd,
3606 input_section
3607 ->output_section))
3608 {
3609 info->callbacks->einfo
3610 (_("%H: cannot emit dynamic relocations"
3611 " in read-only section\n"),
3612 input_bfd, input_section, rel->r_offset);
3613 return FALSE;
3614 }
3615
3616 offset = _bfd_elf_section_offset
3617 (output_bfd, info,
3618 input_section, rel->r_offset);
3619
3620 if (offset != (bfd_vma)-1)
3621 _frvfdpic_add_dyn_reloc (output_bfd,
3622 frvfdpic_gotrel_section (info),
3623 offset + input_section
3624 ->output_section->vma
3625 + input_section->output_offset,
3626 r_type, dynindx, addend, picrel);
3627 }
3628 else
3629 addend += frvfdpic_got_section (info)->output_section->vma;
3630 }
3631
3632 /* We want the addend in-place because dynamic
3633 relocations are REL. Setting relocation to it should
3634 arrange for it to be installed. */
3635 relocation = addend - rel->r_addend;
3636 }
3637 check_segment[0] = check_segment[1] = got_segment;
3638 break;
3639
3640 case R_FRV_32:
3641 if (! IS_FDPIC (output_bfd))
3642 {
3643 check_segment[0] = check_segment[1] = -1;
3644 break;
3645 }
3646 /* Fall through. */
3647 case R_FRV_FUNCDESC_VALUE:
3648 {
3649 int dynindx;
3650 bfd_vma addend = rel->r_addend;
3651
3652 /* If the symbol is dynamic but binds locally, use
3653 section+offset. */
3654 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3655 {
3656 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3657 {
3658 info->callbacks->einfo
3659 (_("%H: %s references dynamic symbol"
3660 " with nonzero addend\n"),
3661 input_bfd, input_section, rel->r_offset,
3662 "R_FRV_FUNCDESC_VALUE");
3663 return FALSE;
3664 }
3665 dynindx = h->dynindx;
3666 }
3667 else
3668 {
3669 if (h)
3670 addend += h->root.u.def.value;
3671 else
3672 addend += sym->st_value;
3673 if (osec)
3674 addend += osec->output_offset;
3675 if (osec && osec->output_section
3676 && ! bfd_is_abs_section (osec->output_section)
3677 && ! bfd_is_und_section (osec->output_section))
3678 dynindx = elf_section_data (osec->output_section)->dynindx;
3679 else
3680 dynindx = 0;
3681 }
3682
3683 /* If we're linking an executable at a fixed address, we
3684 can omit the dynamic relocation as long as the symbol
3685 is defined in the current link unit (which is implied
3686 by its output section not being NULL). */
3687 if (bfd_link_pde (info)
3688 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3689 {
3690 if (osec)
3691 addend += osec->output_section->vma;
3692 if (IS_FDPIC (input_bfd)
3693 && (bfd_get_section_flags (output_bfd,
3694 input_section->output_section)
3695 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3696 {
3697 if (_frvfdpic_osec_readonly_p (output_bfd,
3698 input_section
3699 ->output_section))
3700 {
3701 info->callbacks->einfo
3702 (_("%H: cannot emit fixups in read-only section\n"),
3703 input_bfd, input_section, rel->r_offset);
3704 return FALSE;
3705 }
3706 if (!h || h->root.type != bfd_link_hash_undefweak)
3707 {
3708 bfd_vma offset = _bfd_elf_section_offset
3709 (output_bfd, info,
3710 input_section, rel->r_offset);
3711
3712 if (offset != (bfd_vma)-1)
3713 {
3714 _frvfdpic_add_rofixup (output_bfd,
3715 frvfdpic_gotfixup_section
3716 (info),
3717 offset + input_section
3718 ->output_section->vma
3719 + input_section->output_offset,
3720 picrel);
3721 if (r_type == R_FRV_FUNCDESC_VALUE)
3722 _frvfdpic_add_rofixup
3723 (output_bfd,
3724 frvfdpic_gotfixup_section (info),
3725 offset
3726 + input_section->output_section->vma
3727 + input_section->output_offset + 4, picrel);
3728 }
3729 }
3730 }
3731 }
3732 else
3733 {
3734 if ((bfd_get_section_flags (output_bfd,
3735 input_section->output_section)
3736 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3737 {
3738 bfd_vma offset;
3739
3740 if (_frvfdpic_osec_readonly_p (output_bfd,
3741 input_section
3742 ->output_section))
3743 {
3744 info->callbacks->einfo
3745 (_("%H: cannot emit dynamic relocations"
3746 " in read-only section\n"),
3747 input_bfd, input_section, rel->r_offset);
3748 return FALSE;
3749 }
3750
3751 offset = _bfd_elf_section_offset
3752 (output_bfd, info,
3753 input_section, rel->r_offset);
3754
3755 if (offset != (bfd_vma)-1)
3756 _frvfdpic_add_dyn_reloc (output_bfd,
3757 frvfdpic_gotrel_section (info),
3758 offset + input_section
3759 ->output_section->vma
3760 + input_section->output_offset,
3761 r_type, dynindx, addend, picrel);
3762 }
3763 else if (osec)
3764 addend += osec->output_section->vma;
3765 /* We want the addend in-place because dynamic
3766 relocations are REL. Setting relocation to it
3767 should arrange for it to be installed. */
3768 relocation = addend - rel->r_addend;
3769 }
3770
3771 if (r_type == R_FRV_FUNCDESC_VALUE)
3772 {
3773 /* If we've omitted the dynamic relocation, just emit
3774 the fixed addresses of the symbol and of the local
3775 GOT base offset. */
3776 if (bfd_link_pde (info)
3777 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3778 bfd_put_32 (output_bfd,
3779 frvfdpic_got_section (info)->output_section->vma
3780 + frvfdpic_got_section (info)->output_offset
3781 + frvfdpic_got_initial_offset (info),
3782 contents + rel->r_offset + 4);
3783 else
3784 /* A function descriptor used for lazy or local
3785 resolving is initialized such that its high word
3786 contains the output section index in which the
3787 PLT entries are located, and the low word
3788 contains the offset of the lazy PLT entry entry
3789 point into that section. */
3790 bfd_put_32 (output_bfd,
3791 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3792 ? 0
3793 : _frvfdpic_osec_to_segment (output_bfd,
3794 sec
3795 ->output_section),
3796 contents + rel->r_offset + 4);
3797 }
3798 }
3799 check_segment[0] = check_segment[1] = got_segment;
3800 break;
3801
3802 case R_FRV_GPREL12:
3803 case R_FRV_GPRELU12:
3804 case R_FRV_GPREL32:
3805 case R_FRV_GPRELHI:
3806 case R_FRV_GPRELLO:
3807 check_segment[0] = gprel_segment;
3808 check_segment[1] = sec
3809 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3810 : (unsigned)-1;
3811 break;
3812
3813 case R_FRV_GETTLSOFF:
3814 relocation = frvfdpic_plt_section (info)->output_section->vma
3815 + frvfdpic_plt_section (info)->output_offset
3816 + picrel->tlsplt_entry;
3817 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3818 && picrel->tlsdesc_entry);
3819 check_segment[0] = isec_segment;
3820 check_segment[1] = plt_segment;
3821 break;
3822
3823 case R_FRV_GOTTLSDESC12:
3824 case R_FRV_GOTTLSDESCHI:
3825 case R_FRV_GOTTLSDESCLO:
3826 BFD_ASSERT (picrel->tlsdesc_entry);
3827 relocation = picrel->tlsdesc_entry;
3828 check_segment[0] = tls_segment;
3829 check_segment[1] = sec
3830 && ! bfd_is_abs_section (sec)
3831 && ! bfd_is_und_section (sec)
3832 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3833 : tls_segment;
3834 break;
3835
3836 case R_FRV_TLSMOFF12:
3837 case R_FRV_TLSMOFFHI:
3838 case R_FRV_TLSMOFFLO:
3839 case R_FRV_TLSMOFF:
3840 check_segment[0] = tls_segment;
3841 if (! sec)
3842 check_segment[1] = -1;
3843 else if (bfd_is_abs_section (sec)
3844 || bfd_is_und_section (sec))
3845 {
3846 relocation = 0;
3847 check_segment[1] = tls_segment;
3848 }
3849 else if (sec->output_section)
3850 {
3851 relocation -= tls_biased_base (info);
3852 check_segment[1] =
3853 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3854 }
3855 else
3856 check_segment[1] = -1;
3857 break;
3858
3859 case R_FRV_GOTTLSOFF12:
3860 case R_FRV_GOTTLSOFFHI:
3861 case R_FRV_GOTTLSOFFLO:
3862 BFD_ASSERT (picrel->tlsoff_entry);
3863 relocation = picrel->tlsoff_entry;
3864 check_segment[0] = tls_segment;
3865 check_segment[1] = sec
3866 && ! bfd_is_abs_section (sec)
3867 && ! bfd_is_und_section (sec)
3868 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3869 : tls_segment;
3870 break;
3871
3872 case R_FRV_TLSDESC_VALUE:
3873 case R_FRV_TLSOFF:
3874 /* These shouldn't be present in input object files. */
3875 check_segment[0] = check_segment[1] = isec_segment;
3876 break;
3877
3878 case R_FRV_TLSDESC_RELAX:
3879 case R_FRV_GETTLSOFF_RELAX:
3880 case R_FRV_TLSOFF_RELAX:
3881 /* These are just annotations for relaxation, nothing to do
3882 here. */
3883 continue;
3884
3885 default:
3886 check_segment[0] = isec_segment;
3887 check_segment[1] = sec
3888 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3889 : (unsigned)-1;
3890 break;
3891 }
3892
3893 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3894 {
3895 /* If you take this out, remove the #error from fdpic-static-6.d
3896 in the ld testsuite. */
3897 /* This helps catch problems in GCC while we can't do more
3898 than static linking. The idea is to test whether the
3899 input file basename is crt0.o only once. */
3900 if (silence_segment_error == 1)
3901 silence_segment_error =
3902 (strlen (input_bfd->filename) == 6
3903 && filename_cmp (input_bfd->filename, "crt0.o") == 0)
3904 || (strlen (input_bfd->filename) > 6
3905 && filename_cmp (input_bfd->filename
3906 + strlen (input_bfd->filename) - 7,
3907 "/crt0.o") == 0)
3908 ? -1 : 0;
3909 if (!silence_segment_error
3910 /* We don't want duplicate errors for undefined
3911 symbols. */
3912 && !(picrel && picrel->symndx == -1
3913 && picrel->d.h->root.type == bfd_link_hash_undefined))
3914 {
3915 info->callbacks->einfo
3916 /* xgettext:c-format */
3917 (_("%H: reloc against `%s' references a different segment\n"),
3918 input_bfd, input_section, rel->r_offset, name);
3919 }
3920 if (!silence_segment_error && bfd_link_pic (info))
3921 return FALSE;
3922 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3923 }
3924
3925 switch (r_type)
3926 {
3927 case R_FRV_GOTOFFHI:
3928 case R_FRV_TLSMOFFHI:
3929 /* We need the addend to be applied before we shift the
3930 value right. */
3931 relocation += rel->r_addend;
3932 /* Fall through. */
3933 case R_FRV_GOTHI:
3934 case R_FRV_FUNCDESC_GOTHI:
3935 case R_FRV_FUNCDESC_GOTOFFHI:
3936 case R_FRV_GOTTLSOFFHI:
3937 case R_FRV_GOTTLSDESCHI:
3938 relocation >>= 16;
3939 /* Fall through. */
3940
3941 case R_FRV_GOTLO:
3942 case R_FRV_FUNCDESC_GOTLO:
3943 case R_FRV_GOTOFFLO:
3944 case R_FRV_FUNCDESC_GOTOFFLO:
3945 case R_FRV_GOTTLSOFFLO:
3946 case R_FRV_GOTTLSDESCLO:
3947 case R_FRV_TLSMOFFLO:
3948 relocation &= 0xffff;
3949 break;
3950
3951 default:
3952 break;
3953 }
3954
3955 switch (r_type)
3956 {
3957 case R_FRV_LABEL24:
3958 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3959 break;
3960 /* Fall through. */
3961
3962 /* When referencing a GOT entry, a function descriptor or a
3963 PLT, we don't want the addend to apply to the reference,
3964 but rather to the referenced symbol. The actual entry
3965 will have already been created taking the addend into
3966 account, so cancel it out here. */
3967 case R_FRV_GOT12:
3968 case R_FRV_GOTHI:
3969 case R_FRV_GOTLO:
3970 case R_FRV_FUNCDESC_GOT12:
3971 case R_FRV_FUNCDESC_GOTHI:
3972 case R_FRV_FUNCDESC_GOTLO:
3973 case R_FRV_FUNCDESC_GOTOFF12:
3974 case R_FRV_FUNCDESC_GOTOFFHI:
3975 case R_FRV_FUNCDESC_GOTOFFLO:
3976 case R_FRV_GETTLSOFF:
3977 case R_FRV_GOTTLSDESC12:
3978 case R_FRV_GOTTLSDESCHI:
3979 case R_FRV_GOTTLSDESCLO:
3980 case R_FRV_GOTTLSOFF12:
3981 case R_FRV_GOTTLSOFFHI:
3982 case R_FRV_GOTTLSOFFLO:
3983 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
3984 here, since we do want to apply the addend to the others.
3985 Note that we've applied the addend to GOTOFFHI before we
3986 shifted it right. */
3987 case R_FRV_GOTOFFHI:
3988 case R_FRV_TLSMOFFHI:
3989 relocation -= rel->r_addend;
3990 break;
3991
3992 default:
3993 break;
3994 }
3995
3996 if (r_type == R_FRV_HI16)
3997 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
3998
3999 else if (r_type == R_FRV_LO16)
4000 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4001
4002 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4003 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4004 contents, relocation);
4005
4006 else if (r_type == R_FRV_GPREL12)
4007 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4008 contents, relocation);
4009
4010 else if (r_type == R_FRV_GPRELU12)
4011 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4012 contents, relocation);
4013
4014 else if (r_type == R_FRV_GPRELLO)
4015 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4016 contents, relocation);
4017
4018 else if (r_type == R_FRV_GPRELHI)
4019 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4020 contents, relocation);
4021
4022 else if (r_type == R_FRV_TLSOFF
4023 || r_type == R_FRV_TLSDESC_VALUE)
4024 r = bfd_reloc_notsupported;
4025
4026 else
4027 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4028 rel, relocation);
4029
4030 if (r != bfd_reloc_ok)
4031 {
4032 const char * msg = (const char *) NULL;
4033
4034 switch (r)
4035 {
4036 case bfd_reloc_overflow:
4037 (*info->callbacks->reloc_overflow)
4038 (info, (h ? &h->root : NULL), name, howto->name,
4039 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4040 break;
4041
4042 case bfd_reloc_undefined:
4043 (*info->callbacks->undefined_symbol)
4044 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4045 break;
4046
4047 case bfd_reloc_outofrange:
4048 msg = _("internal error: out of range error");
4049 break;
4050
4051 case bfd_reloc_notsupported:
4052 msg = _("internal error: unsupported relocation error");
4053 break;
4054
4055 case bfd_reloc_dangerous:
4056 msg = _("internal error: dangerous relocation");
4057 break;
4058
4059 default:
4060 msg = _("internal error: unknown error");
4061 break;
4062 }
4063
4064 if (msg)
4065 {
4066 info->callbacks->einfo
4067 /* xgettext:c-format */
4068 (_("%H: reloc against `%s': %s\n"),
4069 input_bfd, input_section, rel->r_offset, name, msg);
4070 return FALSE;
4071 }
4072 }
4073 }
4074
4075 return TRUE;
4076 }
4077 \f
4078 /* Return the section that should be marked against GC for a given
4079 relocation. */
4080
4081 static asection *
4082 elf32_frv_gc_mark_hook (asection *sec,
4083 struct bfd_link_info *info,
4084 Elf_Internal_Rela *rel,
4085 struct elf_link_hash_entry *h,
4086 Elf_Internal_Sym *sym)
4087 {
4088 if (h != NULL)
4089 switch (ELF32_R_TYPE (rel->r_info))
4090 {
4091 case R_FRV_GNU_VTINHERIT:
4092 case R_FRV_GNU_VTENTRY:
4093 return NULL;
4094 }
4095
4096 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4097 }
4098 \f
4099 /* Hook called by the linker routine which adds symbols from an object
4100 file. We use it to put .comm items in .scomm, and not .comm. */
4101
4102 static bfd_boolean
4103 elf32_frv_add_symbol_hook (bfd *abfd,
4104 struct bfd_link_info *info,
4105 Elf_Internal_Sym *sym,
4106 const char **namep ATTRIBUTE_UNUSED,
4107 flagword *flagsp ATTRIBUTE_UNUSED,
4108 asection **secp,
4109 bfd_vma *valp)
4110 {
4111 if (sym->st_shndx == SHN_COMMON
4112 && !bfd_link_relocatable (info)
4113 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4114 {
4115 /* Common symbols less than or equal to -G nn bytes are
4116 automatically put into .sbss. */
4117
4118 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4119
4120 if (scomm == NULL)
4121 {
4122 scomm = bfd_make_section_with_flags (abfd, ".scommon",
4123 (SEC_ALLOC
4124 | SEC_IS_COMMON
4125 | SEC_LINKER_CREATED));
4126 if (scomm == NULL)
4127 return FALSE;
4128 }
4129
4130 *secp = scomm;
4131 *valp = sym->st_size;
4132 }
4133
4134 return TRUE;
4135 }
4136
4137 /* We need dynamic symbols for every section, since segments can
4138 relocate independently. */
4139 static bfd_boolean
4140 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4141 struct bfd_link_info *info
4142 ATTRIBUTE_UNUSED,
4143 asection *p ATTRIBUTE_UNUSED)
4144 {
4145 switch (elf_section_data (p)->this_hdr.sh_type)
4146 {
4147 case SHT_PROGBITS:
4148 case SHT_NOBITS:
4149 /* If sh_type is yet undecided, assume it could be
4150 SHT_PROGBITS/SHT_NOBITS. */
4151 case SHT_NULL:
4152 return FALSE;
4153
4154 /* There shouldn't be section relative relocations
4155 against any other section. */
4156 default:
4157 return TRUE;
4158 }
4159 }
4160
4161 /* Create a .got section, as well as its additional info field. This
4162 is almost entirely copied from
4163 elflink.c:_bfd_elf_create_got_section(). */
4164
4165 static bfd_boolean
4166 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4167 {
4168 flagword flags, pltflags;
4169 asection *s;
4170 struct elf_link_hash_entry *h;
4171 struct bfd_link_hash_entry *bh;
4172 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4173 int ptralign;
4174 int offset;
4175
4176 /* This function may be called more than once. */
4177 s = elf_hash_table (info)->sgot;
4178 if (s != NULL)
4179 return TRUE;
4180
4181 /* Machine specific: although pointers are 32-bits wide, we want the
4182 GOT to be aligned to a 64-bit boundary, such that function
4183 descriptors in it can be accessed with 64-bit loads and
4184 stores. */
4185 ptralign = 3;
4186
4187 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4188 | SEC_LINKER_CREATED);
4189 pltflags = flags;
4190
4191 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
4192 elf_hash_table (info)->sgot = s;
4193 if (s == NULL
4194 || !bfd_set_section_alignment (abfd, s, ptralign))
4195 return FALSE;
4196
4197 if (bed->want_got_sym)
4198 {
4199 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4200 (or .got.plt) section. We don't do this in the linker script
4201 because we don't want to define the symbol if we are not creating
4202 a global offset table. */
4203 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4204 elf_hash_table (info)->hgot = h;
4205 if (h == NULL)
4206 return FALSE;
4207
4208 /* Machine-specific: we want the symbol for executables as
4209 well. */
4210 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4211 return FALSE;
4212 }
4213
4214 /* The first bit of the global offset table is the header. */
4215 s->size += bed->got_header_size;
4216
4217 /* This is the machine-specific part. Create and initialize section
4218 data for the got. */
4219 if (IS_FDPIC (abfd))
4220 {
4221 frvfdpic_relocs_info (info) = htab_try_create (1,
4222 frvfdpic_relocs_info_hash,
4223 frvfdpic_relocs_info_eq,
4224 (htab_del) NULL);
4225 if (! frvfdpic_relocs_info (info))
4226 return FALSE;
4227
4228 s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
4229 (flags | SEC_READONLY));
4230 elf_hash_table (info)->srelgot = s;
4231 if (s == NULL
4232 || ! bfd_set_section_alignment (abfd, s, 2))
4233 return FALSE;
4234
4235 /* Machine-specific. */
4236 s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
4237 (flags | SEC_READONLY));
4238 if (s == NULL
4239 || ! bfd_set_section_alignment (abfd, s, 2))
4240 return FALSE;
4241
4242 frvfdpic_gotfixup_section (info) = s;
4243 offset = -2048;
4244 flags = BSF_GLOBAL;
4245 }
4246 else
4247 {
4248 offset = 2048;
4249 flags = BSF_GLOBAL | BSF_WEAK;
4250 }
4251
4252 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4253 turns out that we're linking with a different linker script, the
4254 linker script will override it. */
4255 bh = NULL;
4256 if (!(_bfd_generic_link_add_one_symbol
4257 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4258 bed->collect, &bh)))
4259 return FALSE;
4260 h = (struct elf_link_hash_entry *) bh;
4261 h->def_regular = 1;
4262 h->type = STT_OBJECT;
4263 /* h->other = STV_HIDDEN; */ /* Should we? */
4264
4265 /* Machine-specific: we want the symbol for executables as well. */
4266 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4267 return FALSE;
4268
4269 if (!IS_FDPIC (abfd))
4270 return TRUE;
4271
4272 /* FDPIC supports Thread Local Storage, and this may require a
4273 procedure linkage table for TLS PLT entries. */
4274
4275 /* This is mostly copied from
4276 elflink.c:_bfd_elf_create_dynamic_sections(). */
4277
4278 flags = pltflags;
4279 pltflags |= SEC_CODE;
4280 if (bed->plt_not_loaded)
4281 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4282 if (bed->plt_readonly)
4283 pltflags |= SEC_READONLY;
4284
4285 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
4286 if (s == NULL
4287 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4288 return FALSE;
4289 /* FRV-specific: remember it. */
4290 frvfdpic_plt_section (info) = s;
4291
4292 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4293 .plt section. */
4294 if (bed->want_plt_sym)
4295 {
4296 h = _bfd_elf_define_linkage_sym (abfd, info, s,
4297 "_PROCEDURE_LINKAGE_TABLE_");
4298 elf_hash_table (info)->hplt = h;
4299 if (h == NULL)
4300 return FALSE;
4301 }
4302
4303 /* FRV-specific: we want rel relocations for the plt. */
4304 s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
4305 flags | SEC_READONLY);
4306 if (s == NULL
4307 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4308 return FALSE;
4309 /* FRV-specific: remember it. */
4310 frvfdpic_pltrel_section (info) = s;
4311
4312 return TRUE;
4313 }
4314
4315 /* Make sure the got and plt sections exist, and that our pointers in
4316 the link hash table point to them. */
4317
4318 static bfd_boolean
4319 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4320 {
4321 /* This is mostly copied from
4322 elflink.c:_bfd_elf_create_dynamic_sections(). */
4323 flagword flags;
4324 asection *s;
4325 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4326
4327 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4328 | SEC_LINKER_CREATED);
4329
4330 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4331 .rel[a].bss sections. */
4332
4333 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4334 way. */
4335 if (! _frv_create_got_section (abfd, info))
4336 return FALSE;
4337
4338 /* FRV-specific: make sure we created everything we wanted. */
4339 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4340 && frvfdpic_gotfixup_section (info)
4341 && frvfdpic_plt_section (info)
4342 && frvfdpic_pltrel_section (info));
4343
4344 if (bed->want_dynbss)
4345 {
4346 /* The .dynbss section is a place to put symbols which are defined
4347 by dynamic objects, are referenced by regular objects, and are
4348 not functions. We must allocate space for them in the process
4349 image and use a R_*_COPY reloc to tell the dynamic linker to
4350 initialize them at run time. The linker script puts the .dynbss
4351 section into the .bss section of the final image. */
4352 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
4353 SEC_ALLOC | SEC_LINKER_CREATED);
4354 if (s == NULL)
4355 return FALSE;
4356
4357 /* The .rel[a].bss section holds copy relocs. This section is not
4358 normally needed. We need to create it here, though, so that the
4359 linker will map it to an output section. We can't just create it
4360 only if we need it, because we will not know whether we need it
4361 until we have seen all the input files, and the first time the
4362 main linker code calls BFD after examining all the input files
4363 (size_dynamic_sections) the input sections have already been
4364 mapped to the output sections. If the section turns out not to
4365 be needed, we can discard it later. We will never need this
4366 section when generating a shared object, since they do not use
4367 copy relocs. */
4368 if (! bfd_link_pic (info))
4369 {
4370 s = bfd_make_section_anyway_with_flags (abfd,
4371 (bed->default_use_rela_p
4372 ? ".rela.bss" : ".rel.bss"),
4373 flags | SEC_READONLY);
4374 if (s == NULL
4375 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4376 return FALSE;
4377 }
4378 }
4379
4380 return TRUE;
4381 }
4382
4383 /* Compute the total GOT and PLT size required by each symbol in each
4384 range. Symbols may require up to 4 words in the GOT: an entry
4385 pointing to the symbol, an entry pointing to its function
4386 descriptor, and a private function descriptors taking two
4387 words. */
4388
4389 static void
4390 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4391 struct _frvfdpic_dynamic_got_info *dinfo)
4392 {
4393 /* Allocate space for a GOT entry pointing to the symbol. */
4394 if (entry->got12)
4395 dinfo->got12 += 4;
4396 else if (entry->gotlos)
4397 dinfo->gotlos += 4;
4398 else if (entry->gothilo)
4399 dinfo->gothilo += 4;
4400 else
4401 entry->relocs32--;
4402 entry->relocs32++;
4403
4404 /* Allocate space for a GOT entry pointing to the function
4405 descriptor. */
4406 if (entry->fdgot12)
4407 dinfo->got12 += 4;
4408 else if (entry->fdgotlos)
4409 dinfo->gotlos += 4;
4410 else if (entry->fdgothilo)
4411 dinfo->gothilo += 4;
4412 else
4413 entry->relocsfd--;
4414 entry->relocsfd++;
4415
4416 /* Decide whether we need a PLT entry, a function descriptor in the
4417 GOT, and a lazy PLT entry for this symbol. */
4418 entry->plt = entry->call
4419 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4420 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4421 entry->privfd = entry->plt
4422 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4423 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4424 && (entry->symndx != -1
4425 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4426 entry->lazyplt = entry->privfd
4427 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4428 && ! (dinfo->info->flags & DF_BIND_NOW)
4429 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4430
4431 /* Allocate space for a function descriptor. */
4432 if (entry->fdgoff12)
4433 dinfo->fd12 += 8;
4434 else if (entry->fdgofflos)
4435 dinfo->fdlos += 8;
4436 else if (entry->privfd && entry->plt)
4437 dinfo->fdplt += 8;
4438 else if (entry->privfd)
4439 dinfo->fdhilo += 8;
4440 else
4441 entry->relocsfdv--;
4442 entry->relocsfdv++;
4443
4444 if (entry->lazyplt)
4445 dinfo->lzplt += 8;
4446 }
4447
4448 /* Compute the total GOT size required by each TLS symbol in each
4449 range. Symbols may require up to 5 words in the GOT: an entry
4450 holding the TLS offset for the symbol, and an entry with a full TLS
4451 descriptor taking 4 words. */
4452
4453 static void
4454 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4455 struct _frvfdpic_dynamic_got_info *dinfo,
4456 bfd_boolean subtract)
4457 {
4458 const int l = subtract ? -1 : 1;
4459
4460 /* Allocate space for a GOT entry with the TLS offset of the
4461 symbol. */
4462 if (entry->tlsoff12)
4463 dinfo->got12 += 4 * l;
4464 else if (entry->tlsofflos)
4465 dinfo->gotlos += 4 * l;
4466 else if (entry->tlsoffhilo)
4467 dinfo->gothilo += 4 * l;
4468 else
4469 entry->relocstlsoff -= l;
4470 entry->relocstlsoff += l;
4471
4472 /* If there's any TLSOFF relocation, mark the output file as not
4473 suitable for dlopening. This mark will remain even if we relax
4474 all such relocations, but this is not a problem, since we'll only
4475 do so for executables, and we definitely don't want anyone
4476 dlopening executables. */
4477 if (entry->relocstlsoff)
4478 dinfo->info->flags |= DF_STATIC_TLS;
4479
4480 /* Allocate space for a TLS descriptor. */
4481 if (entry->tlsdesc12)
4482 dinfo->tlsd12 += 8 * l;
4483 else if (entry->tlsdesclos)
4484 dinfo->tlsdlos += 8 * l;
4485 else if (entry->tlsplt)
4486 dinfo->tlsdplt += 8 * l;
4487 else if (entry->tlsdeschilo)
4488 dinfo->tlsdhilo += 8 * l;
4489 else
4490 entry->relocstlsd -= l;
4491 entry->relocstlsd += l;
4492 }
4493
4494 /* Compute the number of dynamic relocations and fixups that a symbol
4495 requires, and add (or subtract) from the grand and per-symbol
4496 totals. */
4497
4498 static void
4499 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4500 struct _frvfdpic_dynamic_got_info *dinfo,
4501 bfd_boolean subtract)
4502 {
4503 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4504
4505 if (!bfd_link_pde (dinfo->info))
4506 {
4507 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4508 + entry->relocstlsd;
4509
4510 /* In the executable, TLS relocations to symbols that bind
4511 locally (including those that resolve to global TLS offsets)
4512 are resolved immediately, without any need for fixups or
4513 dynamic relocations. In shared libraries, however, we must
4514 emit dynamic relocations even for local symbols, because we
4515 don't know the module id the library is going to get at
4516 run-time, nor its TLS base offset. */
4517 if (!bfd_link_executable (dinfo->info)
4518 || (entry->symndx == -1
4519 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4520 relocs += entry->relocstlsoff;
4521 }
4522 else
4523 {
4524 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4525 {
4526 if (entry->symndx != -1
4527 || entry->d.h->root.type != bfd_link_hash_undefweak)
4528 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4529 fixups += entry->relocstlsd;
4530 tlsrets += entry->relocstlsd;
4531 }
4532 else
4533 {
4534 relocs += entry->relocs32 + entry->relocsfdv
4535 + entry->relocstlsoff + entry->relocstlsd;
4536 }
4537
4538 if (entry->symndx != -1
4539 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4540 {
4541 if (entry->symndx != -1
4542 || entry->d.h->root.type != bfd_link_hash_undefweak)
4543 fixups += entry->relocsfd;
4544 }
4545 else
4546 relocs += entry->relocsfd;
4547 }
4548
4549 if (subtract)
4550 {
4551 relocs = - relocs;
4552 fixups = - fixups;
4553 tlsrets = - tlsrets;
4554 }
4555
4556 entry->dynrelocs += relocs;
4557 entry->fixups += fixups;
4558 dinfo->relocs += relocs;
4559 dinfo->fixups += fixups;
4560 dinfo->tls_ret_refs += tlsrets;
4561 }
4562
4563 /* Look for opportunities to relax TLS relocations. We can assume
4564 we're linking the main executable or a static-tls library, since
4565 otherwise we wouldn't have got here. When relaxing, we have to
4566 first undo any previous accounting of TLS uses of fixups, dynamic
4567 relocations, GOT and PLT entries. */
4568
4569 static void
4570 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4571 struct _frvfdpic_dynamic_got_info *dinfo,
4572 bfd_boolean relaxing)
4573 {
4574 bfd_boolean changed = ! relaxing;
4575
4576 BFD_ASSERT (bfd_link_executable (dinfo->info)
4577 || (dinfo->info->flags & DF_STATIC_TLS));
4578
4579 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4580 {
4581 if (! changed)
4582 {
4583 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4584 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4585 changed = TRUE;
4586 }
4587
4588 /* When linking an executable, we can always decay GOTTLSDESC to
4589 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4590 When linking a static-tls shared library, using TLSMOFF is
4591 not an option, but we can still use GOTTLSOFF. When decaying
4592 to GOTTLSOFF, we must keep the GOT entry in range. We know
4593 it has to fit because we'll be trading the 4 words of hte TLS
4594 descriptor for a single word in the same range. */
4595 if (! bfd_link_executable (dinfo->info)
4596 || (entry->symndx == -1
4597 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4598 {
4599 entry->tlsoff12 |= entry->tlsdesc12;
4600 entry->tlsofflos |= entry->tlsdesclos;
4601 entry->tlsoffhilo |= entry->tlsdeschilo;
4602 }
4603
4604 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4605 }
4606
4607 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4608 main executable. We have to check whether the symbol's TLSOFF is
4609 in range for a setlos. For symbols with a hash entry, we can
4610 determine exactly what to do; for others locals, we don't have
4611 addresses handy, so we use the size of the TLS section as an
4612 approximation. If we get it wrong, we'll retain a GOT entry
4613 holding the TLS offset (without dynamic relocations or fixups),
4614 but we'll still optimize away the loads from it. Since TLS sizes
4615 are generally very small, it's probably not worth attempting to
4616 do better than this. */
4617 if ((entry->tlsplt
4618 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4619 && bfd_link_executable (dinfo->info) && relaxing
4620 && ((entry->symndx == -1
4621 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4622 /* The above may hold for an undefweak TLS symbol, so make
4623 sure we don't have this case before accessing def.value
4624 and def.section. */
4625 && (entry->d.h->root.type == bfd_link_hash_undefweak
4626 || (bfd_vma)(entry->d.h->root.u.def.value
4627 + (entry->d.h->root.u.def.section
4628 ->output_section->vma)
4629 + entry->d.h->root.u.def.section->output_offset
4630 + entry->addend
4631 - tls_biased_base (dinfo->info)
4632 + 32768) < (bfd_vma)65536))
4633 || (entry->symndx != -1
4634 && (elf_hash_table (dinfo->info)->tls_sec->size
4635 + entry->addend < 32768 + FRVFDPIC_TLS_BIAS))))
4636 {
4637 if (! changed)
4638 {
4639 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4640 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4641 changed = TRUE;
4642 }
4643
4644 entry->tlsplt =
4645 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4646 }
4647
4648 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4649 have a #gottlsoff12 relocation for this entry, or if we can fit
4650 one more in the 12-bit (and 16-bit) ranges. */
4651 if (entry->tlsplt
4652 && (entry->tlsoff12
4653 || (relaxing
4654 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4655 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4656 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4657 <= 65536 - 12 - 4))))
4658 {
4659 if (! changed)
4660 {
4661 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4662 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4663 changed = TRUE;
4664 }
4665
4666 entry->tlsoff12 = 1;
4667 entry->tlsplt = 0;
4668 }
4669
4670 if (changed)
4671 {
4672 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4673 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4674 }
4675
4676 return;
4677 }
4678
4679 /* Compute the total GOT and PLT size required by each symbol in each range. *
4680 Symbols may require up to 4 words in the GOT: an entry pointing to
4681 the symbol, an entry pointing to its function descriptor, and a
4682 private function descriptors taking two words. */
4683
4684 static int
4685 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4686 {
4687 struct frvfdpic_relocs_info *entry = *entryp;
4688 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4689
4690 _frvfdpic_count_nontls_entries (entry, dinfo);
4691
4692 if (bfd_link_executable (dinfo->info)
4693 || (dinfo->info->flags & DF_STATIC_TLS))
4694 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4695 else
4696 {
4697 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4698 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4699 }
4700
4701 return 1;
4702 }
4703
4704 /* Determine the positive and negative ranges to be used by each
4705 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4706 double-word boundary, are the minimum (negative) and maximum
4707 (positive) GOT offsets already used by previous ranges, except for
4708 an ODD entry that may have been left behind. GOT and FD indicate
4709 the size of GOT entries and function descriptors that must be
4710 placed within the range from -WRAP to WRAP. If there's room left,
4711 up to FDPLT bytes should be reserved for additional function
4712 descriptors. */
4713
4714 inline static bfd_signed_vma
4715 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4716 bfd_signed_vma fdcur,
4717 bfd_signed_vma odd,
4718 bfd_signed_vma cur,
4719 bfd_vma got,
4720 bfd_vma fd,
4721 bfd_vma fdplt,
4722 bfd_vma tlsd,
4723 bfd_vma tlsdplt,
4724 bfd_vma wrap)
4725 {
4726 bfd_signed_vma wrapmin = -wrap;
4727 const bfd_vma tdescsz = 8;
4728
4729 /* Start at the given initial points. */
4730 gad->fdcur = fdcur;
4731 gad->cur = cur;
4732
4733 /* If we had an incoming odd word and we have any got entries that
4734 are going to use it, consume it, otherwise leave gad->odd at
4735 zero. We might force gad->odd to zero and return the incoming
4736 odd such that it is used by the next range, but then GOT entries
4737 might appear to be out of order and we wouldn't be able to
4738 shorten the GOT by one word if it turns out to end with an
4739 unpaired GOT entry. */
4740 if (odd && got)
4741 {
4742 gad->odd = odd;
4743 got -= 4;
4744 odd = 0;
4745 }
4746 else
4747 gad->odd = 0;
4748
4749 /* If we're left with an unpaired GOT entry, compute its location
4750 such that we can return it. Otherwise, if got doesn't require an
4751 odd number of words here, either odd was already zero in the
4752 block above, or it was set to zero because got was non-zero, or
4753 got was already zero. In the latter case, we want the value of
4754 odd to carry over to the return statement, so we don't want to
4755 reset odd unless the condition below is true. */
4756 if (got & 4)
4757 {
4758 odd = cur + got;
4759 got += 4;
4760 }
4761
4762 /* Compute the tentative boundaries of this range. */
4763 gad->max = cur + got;
4764 gad->min = fdcur - fd;
4765 gad->fdplt = 0;
4766
4767 /* If function descriptors took too much space, wrap some of them
4768 around. */
4769 if (gad->min < wrapmin)
4770 {
4771 gad->max += wrapmin - gad->min;
4772 gad->tmin = gad->min = wrapmin;
4773 }
4774
4775 /* If GOT entries took too much space, wrap some of them around.
4776 This may well cause gad->min to become lower than wrapmin. This
4777 will cause a relocation overflow later on, so we don't have to
4778 report it here . */
4779 if ((bfd_vma) gad->max > wrap)
4780 {
4781 gad->min -= gad->max - wrap;
4782 gad->max = wrap;
4783 }
4784
4785 /* Add TLS descriptors. */
4786 gad->tmax = gad->max + tlsd;
4787 gad->tmin = gad->min;
4788 gad->tlsdplt = 0;
4789
4790 /* If TLS descriptors took too much space, wrap an integral number
4791 of them around. */
4792 if ((bfd_vma) gad->tmax > wrap)
4793 {
4794 bfd_vma wrapsize = gad->tmax - wrap;
4795
4796 wrapsize += tdescsz / 2;
4797 wrapsize &= ~ tdescsz / 2;
4798
4799 gad->tmin -= wrapsize;
4800 gad->tmax -= wrapsize;
4801 }
4802
4803 /* If there is space left and we have function descriptors
4804 referenced in PLT entries that could take advantage of shorter
4805 offsets, place them now. */
4806 if (fdplt && gad->tmin > wrapmin)
4807 {
4808 bfd_vma fds;
4809
4810 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4811 fds = gad->tmin - wrapmin;
4812 else
4813 fds = fdplt;
4814
4815 fdplt -= fds;
4816 gad->min -= fds;
4817 gad->tmin -= fds;
4818 gad->fdplt += fds;
4819 }
4820
4821 /* If there is more space left, try to place some more function
4822 descriptors for PLT entries. */
4823 if (fdplt && (bfd_vma) gad->tmax < wrap)
4824 {
4825 bfd_vma fds;
4826
4827 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4828 fds = wrap - gad->tmax;
4829 else
4830 fds = fdplt;
4831
4832 fdplt -= fds;
4833 gad->max += fds;
4834 gad->tmax += fds;
4835 gad->fdplt += fds;
4836 }
4837
4838 /* If there is space left and we have TLS descriptors referenced in
4839 PLT entries that could take advantage of shorter offsets, place
4840 them now. */
4841 if (tlsdplt && gad->tmin > wrapmin)
4842 {
4843 bfd_vma tlsds;
4844
4845 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4846 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4847 else
4848 tlsds = tlsdplt;
4849
4850 tlsdplt -= tlsds;
4851 gad->tmin -= tlsds;
4852 gad->tlsdplt += tlsds;
4853 }
4854
4855 /* If there is more space left, try to place some more TLS
4856 descriptors for PLT entries. Although we could try to fit an
4857 additional TLS descriptor with half of it just before before the
4858 wrap point and another right past the wrap point, this might
4859 cause us to run out of space for the next region, so don't do
4860 it. */
4861 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4862 {
4863 bfd_vma tlsds;
4864
4865 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4866 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4867 else
4868 tlsds = tlsdplt;
4869
4870 tlsdplt -= tlsds;
4871 gad->tmax += tlsds;
4872 gad->tlsdplt += tlsds;
4873 }
4874
4875 /* If odd was initially computed as an offset past the wrap point,
4876 wrap it around. */
4877 if (odd > gad->max)
4878 odd = gad->min + odd - gad->max;
4879
4880 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4881 before returning, so do it here too. This guarantees that,
4882 should cur and fdcur meet at the wrap point, they'll both be
4883 equal to min. */
4884 if (gad->cur == gad->max)
4885 gad->cur = gad->min;
4886
4887 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
4888 gad->tcur = gad->max;
4889 if (gad->tcur == gad->tmax)
4890 gad->tcur = gad->tmin;
4891
4892 return odd;
4893 }
4894
4895 /* Compute the location of the next GOT entry, given the allocation
4896 data for a range. */
4897
4898 inline static bfd_signed_vma
4899 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4900 {
4901 bfd_signed_vma ret;
4902
4903 if (gad->odd)
4904 {
4905 /* If there was an odd word left behind, use it. */
4906 ret = gad->odd;
4907 gad->odd = 0;
4908 }
4909 else
4910 {
4911 /* Otherwise, use the word pointed to by cur, reserve the next
4912 as an odd word, and skip to the next pair of words, possibly
4913 wrapping around. */
4914 ret = gad->cur;
4915 gad->odd = gad->cur + 4;
4916 gad->cur += 8;
4917 if (gad->cur == gad->max)
4918 gad->cur = gad->min;
4919 }
4920
4921 return ret;
4922 }
4923
4924 /* Compute the location of the next function descriptor entry in the
4925 GOT, given the allocation data for a range. */
4926
4927 inline static bfd_signed_vma
4928 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4929 {
4930 /* If we're at the bottom, wrap around, and only then allocate the
4931 next pair of words. */
4932 if (gad->fdcur == gad->min)
4933 gad->fdcur = gad->max;
4934 return gad->fdcur -= 8;
4935 }
4936
4937 /* Compute the location of the next TLS descriptor entry in the GOT,
4938 given the allocation data for a range. */
4939 inline static bfd_signed_vma
4940 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4941 {
4942 bfd_signed_vma ret;
4943
4944 ret = gad->tcur;
4945
4946 gad->tcur += 8;
4947
4948 /* If we're at the top of the region, wrap around to the bottom. */
4949 if (gad->tcur == gad->tmax)
4950 gad->tcur = gad->tmin;
4951
4952 return ret;
4953 }
4954
4955 /* Assign GOT offsets for every GOT entry and function descriptor.
4956 Doing everything in a single pass is tricky. */
4957
4958 static int
4959 _frvfdpic_assign_got_entries (void **entryp, void *info_)
4960 {
4961 struct frvfdpic_relocs_info *entry = *entryp;
4962 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
4963
4964 if (entry->got12)
4965 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4966 else if (entry->gotlos)
4967 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4968 else if (entry->gothilo)
4969 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4970
4971 if (entry->fdgot12)
4972 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4973 else if (entry->fdgotlos)
4974 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4975 else if (entry->fdgothilo)
4976 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4977
4978 if (entry->fdgoff12)
4979 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4980 else if (entry->plt && dinfo->got12.fdplt)
4981 {
4982 dinfo->got12.fdplt -= 8;
4983 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4984 }
4985 else if (entry->fdgofflos)
4986 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4987 else if (entry->plt && dinfo->gotlos.fdplt)
4988 {
4989 dinfo->gotlos.fdplt -= 8;
4990 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4991 }
4992 else if (entry->plt)
4993 {
4994 dinfo->gothilo.fdplt -= 8;
4995 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
4996 }
4997 else if (entry->privfd)
4998 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
4999
5000 if (entry->tlsoff12)
5001 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5002 else if (entry->tlsofflos)
5003 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5004 else if (entry->tlsoffhilo)
5005 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5006
5007 if (entry->tlsdesc12)
5008 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5009 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5010 {
5011 dinfo->got12.tlsdplt -= 8;
5012 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5013 }
5014 else if (entry->tlsdesclos)
5015 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5016 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5017 {
5018 dinfo->gotlos.tlsdplt -= 8;
5019 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5020 }
5021 else if (entry->tlsplt)
5022 {
5023 dinfo->gothilo.tlsdplt -= 8;
5024 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5025 }
5026 else if (entry->tlsdeschilo)
5027 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5028
5029 return 1;
5030 }
5031
5032 /* Assign GOT offsets to private function descriptors used by PLT
5033 entries (or referenced by 32-bit offsets), as well as PLT entries
5034 and lazy PLT entries. */
5035
5036 static int
5037 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5038 {
5039 struct frvfdpic_relocs_info *entry = *entryp;
5040 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5041
5042 if (entry->privfd)
5043 BFD_ASSERT (entry->fd_entry);
5044
5045 if (entry->plt)
5046 {
5047 int size;
5048
5049 /* We use the section's raw size to mark the location of the
5050 next PLT entry. */
5051 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5052
5053 /* Figure out the length of this PLT entry based on the
5054 addressing mode we need to reach the function descriptor. */
5055 BFD_ASSERT (entry->fd_entry);
5056 if (entry->fd_entry >= -(1 << (12 - 1))
5057 && entry->fd_entry < (1 << (12 - 1)))
5058 size = 8;
5059 else if (entry->fd_entry >= -(1 << (16 - 1))
5060 && entry->fd_entry < (1 << (16 - 1)))
5061 size = 12;
5062 else
5063 size = 16;
5064
5065 frvfdpic_plt_section (dinfo->g.info)->size += size;
5066 }
5067
5068 if (entry->lazyplt)
5069 {
5070 entry->lzplt_entry = dinfo->g.lzplt;
5071 dinfo->g.lzplt += 8;
5072 /* If this entry is the one that gets the resolver stub, account
5073 for the additional instruction. */
5074 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5075 == FRVFDPIC_LZPLT_RESOLV_LOC)
5076 dinfo->g.lzplt += 4;
5077 }
5078
5079 if (entry->tlsplt)
5080 {
5081 int size;
5082
5083 entry->tlsplt_entry
5084 = frvfdpic_plt_section (dinfo->g.info)->size;
5085
5086 if (bfd_link_executable (dinfo->g.info)
5087 && (entry->symndx != -1
5088 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5089 {
5090 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5091 /* FIXME: here we use the size of the TLS section
5092 as an upper bound for the value of the TLS
5093 symbol, because we may not know the exact value
5094 yet. If we get it wrong, we'll just waste a
5095 word in the PLT, and we should never get even
5096 close to 32 KiB of TLS anyway. */
5097 && elf_hash_table (dinfo->g.info)->tls_sec
5098 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5099 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5100 size = 8;
5101 else
5102 size = 12;
5103 }
5104 else if (entry->tlsoff_entry)
5105 {
5106 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5107 && entry->tlsoff_entry < (1 << (12 - 1)))
5108 size = 8;
5109 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5110 && entry->tlsoff_entry < (1 << (16 - 1)))
5111 size = 12;
5112 else
5113 size = 16;
5114 }
5115 else
5116 {
5117 BFD_ASSERT (entry->tlsdesc_entry);
5118
5119 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5120 && entry->tlsdesc_entry < (1 << (12 - 1)))
5121 size = 8;
5122 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5123 && entry->tlsdesc_entry < (1 << (16 - 1)))
5124 size = 12;
5125 else
5126 size = 16;
5127 }
5128
5129 frvfdpic_plt_section (dinfo->g.info)->size += size;
5130 }
5131
5132 return 1;
5133 }
5134
5135 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5136 _frvfdpic_assign_plt_entries. */
5137
5138 static int
5139 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5140 {
5141 struct frvfdpic_relocs_info *entry = *entryp;
5142
5143 entry->got_entry = 0;
5144 entry->fdgot_entry = 0;
5145 entry->fd_entry = 0;
5146 entry->plt_entry = (bfd_vma)-1;
5147 entry->lzplt_entry = (bfd_vma)-1;
5148 entry->tlsoff_entry = 0;
5149 entry->tlsdesc_entry = 0;
5150 entry->tlsplt_entry = (bfd_vma)-1;
5151
5152 return 1;
5153 }
5154
5155 /* Follow indirect and warning hash entries so that each got entry
5156 points to the final symbol definition. P must point to a pointer
5157 to the hash table we're traversing. Since this traversal may
5158 modify the hash table, we set this pointer to NULL to indicate
5159 we've made a potentially-destructive change to the hash table, so
5160 the traversal must be restarted. */
5161 static int
5162 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5163 {
5164 struct frvfdpic_relocs_info *entry = *entryp;
5165 htab_t *htab = p;
5166
5167 if (entry->symndx == -1)
5168 {
5169 struct elf_link_hash_entry *h = entry->d.h;
5170 struct frvfdpic_relocs_info *oentry;
5171
5172 while (h->root.type == bfd_link_hash_indirect
5173 || h->root.type == bfd_link_hash_warning)
5174 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5175
5176 if (entry->d.h == h)
5177 return 1;
5178
5179 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5180 NO_INSERT);
5181
5182 if (oentry)
5183 {
5184 /* Merge the two entries. */
5185 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5186 htab_clear_slot (*htab, entryp);
5187 return 1;
5188 }
5189
5190 entry->d.h = h;
5191
5192 /* If we can't find this entry with the new bfd hash, re-insert
5193 it, and get the traversal restarted. */
5194 if (! htab_find (*htab, entry))
5195 {
5196 htab_clear_slot (*htab, entryp);
5197 entryp = htab_find_slot (*htab, entry, INSERT);
5198 if (! *entryp)
5199 *entryp = entry;
5200 /* Abort the traversal, since the whole table may have
5201 moved, and leave it up to the parent to restart the
5202 process. */
5203 *(htab_t *)p = NULL;
5204 return 0;
5205 }
5206 }
5207
5208 return 1;
5209 }
5210
5211 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5212 section and the rofixup section. Assign locations for GOT and PLT
5213 entries. */
5214
5215 static bfd_boolean
5216 _frvfdpic_size_got_plt (bfd *output_bfd,
5217 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5218 {
5219 bfd_signed_vma odd;
5220 bfd_vma limit, tlslimit;
5221 struct bfd_link_info *info = gpinfop->g.info;
5222 bfd *dynobj = elf_hash_table (info)->dynobj;
5223
5224 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5225 sizeof (gpinfop->g));
5226
5227 odd = 12;
5228 /* Compute the total size taken by entries in the 12-bit and 16-bit
5229 ranges, to tell how many PLT function descriptors we can bring
5230 into the 12-bit range without causing the 16-bit range to
5231 overflow. */
5232 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5233 + gpinfop->g.fd12 + gpinfop->g.fdlos
5234 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5235 if (limit < (bfd_vma)1 << 16)
5236 limit = ((bfd_vma)1 << 16) - limit;
5237 else
5238 limit = 0;
5239 if (gpinfop->g.fdplt < limit)
5240 {
5241 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5242 limit = gpinfop->g.fdplt;
5243 }
5244 else
5245 tlslimit = 0;
5246 if (gpinfop->g.tlsdplt < tlslimit)
5247 tlslimit = gpinfop->g.tlsdplt;
5248
5249 /* Determine the ranges of GOT offsets that we can use for each
5250 range of addressing modes. */
5251 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5252 0,
5253 odd,
5254 16,
5255 gpinfop->g.got12,
5256 gpinfop->g.fd12,
5257 limit,
5258 gpinfop->g.tlsd12,
5259 tlslimit,
5260 (bfd_vma)1 << (12-1));
5261 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5262 gpinfop->got12.tmin,
5263 odd,
5264 gpinfop->got12.tmax,
5265 gpinfop->g.gotlos,
5266 gpinfop->g.fdlos,
5267 gpinfop->g.fdplt
5268 - gpinfop->got12.fdplt,
5269 gpinfop->g.tlsdlos,
5270 gpinfop->g.tlsdplt
5271 - gpinfop->got12.tlsdplt,
5272 (bfd_vma)1 << (16-1));
5273 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5274 gpinfop->gotlos.tmin,
5275 odd,
5276 gpinfop->gotlos.tmax,
5277 gpinfop->g.gothilo,
5278 gpinfop->g.fdhilo,
5279 gpinfop->g.fdplt
5280 - gpinfop->got12.fdplt
5281 - gpinfop->gotlos.fdplt,
5282 gpinfop->g.tlsdhilo,
5283 gpinfop->g.tlsdplt
5284 - gpinfop->got12.tlsdplt
5285 - gpinfop->gotlos.tlsdplt,
5286 (bfd_vma)1 << (32-1));
5287
5288 /* Now assign (most) GOT offsets. */
5289 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5290 gpinfop);
5291
5292 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5293 - gpinfop->gothilo.tmin
5294 /* If an odd word is the last word of the GOT, we don't need this
5295 word to be part of the GOT. */
5296 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5297 if (frvfdpic_got_section (info)->size == 0)
5298 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5299 else if (frvfdpic_got_section (info)->size == 12
5300 && ! elf_hash_table (info)->dynamic_sections_created)
5301 {
5302 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5303 frvfdpic_got_section (info)->size = 0;
5304 }
5305 /* This will be non-NULL during relaxation. The assumption is that
5306 the size of one of these sections will never grow, only shrink,
5307 so we can use the larger buffer we allocated before. */
5308 else if (frvfdpic_got_section (info)->contents == NULL)
5309 {
5310 frvfdpic_got_section (info)->contents =
5311 (bfd_byte *) bfd_zalloc (dynobj,
5312 frvfdpic_got_section (info)->size);
5313 if (frvfdpic_got_section (info)->contents == NULL)
5314 return FALSE;
5315 }
5316
5317 if (frvfdpic_gotrel_section (info))
5318 /* Subtract the number of lzplt entries, since those will generate
5319 relocations in the pltrel section. */
5320 frvfdpic_gotrel_section (info)->size =
5321 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5322 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5323 else
5324 BFD_ASSERT (gpinfop->g.relocs == 0);
5325 if (frvfdpic_gotrel_section (info)->size == 0)
5326 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5327 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5328 {
5329 frvfdpic_gotrel_section (info)->contents =
5330 (bfd_byte *) bfd_zalloc (dynobj,
5331 frvfdpic_gotrel_section (info)->size);
5332 if (frvfdpic_gotrel_section (info)->contents == NULL)
5333 return FALSE;
5334 }
5335
5336 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5337 if (frvfdpic_gotfixup_section (info)->size == 0)
5338 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5339 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5340 {
5341 frvfdpic_gotfixup_section (info)->contents =
5342 (bfd_byte *) bfd_zalloc (dynobj,
5343 frvfdpic_gotfixup_section (info)->size);
5344 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5345 return FALSE;
5346 }
5347
5348 if (frvfdpic_pltrel_section (info))
5349 {
5350 frvfdpic_pltrel_section (info)->size =
5351 gpinfop->g.lzplt / 8
5352 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5353 if (frvfdpic_pltrel_section (info)->size == 0)
5354 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5355 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5356 {
5357 frvfdpic_pltrel_section (info)->contents =
5358 (bfd_byte *) bfd_zalloc (dynobj,
5359 frvfdpic_pltrel_section (info)->size);
5360 if (frvfdpic_pltrel_section (info)->contents == NULL)
5361 return FALSE;
5362 }
5363 }
5364
5365 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5366 such that there's room for the additional instruction needed to
5367 call the resolver. Since _frvfdpic_assign_got_entries didn't
5368 account for them, our block size is 4 bytes smaller than the real
5369 block size. */
5370 if (frvfdpic_plt_section (info))
5371 {
5372 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5373 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5374 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5375 }
5376
5377 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5378 actually assign lazy PLT entries addresses. */
5379 gpinfop->g.lzplt = 0;
5380
5381 /* Save information that we're going to need to generate GOT and PLT
5382 entries. */
5383 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5384
5385 if (get_elf_backend_data (output_bfd)->want_got_sym)
5386 elf_hash_table (info)->hgot->root.u.def.value
5387 = frvfdpic_got_initial_offset (info);
5388
5389 if (frvfdpic_plt_section (info))
5390 frvfdpic_plt_initial_offset (info) =
5391 frvfdpic_plt_section (info)->size;
5392
5393 /* Allocate a ret statement at plt_initial_offset, to be used by
5394 locally-resolved TLS descriptors. */
5395 if (gpinfop->g.tls_ret_refs)
5396 frvfdpic_plt_section (info)->size += 4;
5397
5398 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5399 gpinfop);
5400
5401 /* Allocate the PLT section contents only after
5402 _frvfdpic_assign_plt_entries has a chance to add the size of the
5403 non-lazy PLT entries. */
5404 if (frvfdpic_plt_section (info))
5405 {
5406 if (frvfdpic_plt_section (info)->size == 0)
5407 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5408 else if (frvfdpic_plt_section (info)->contents == NULL)
5409 {
5410 frvfdpic_plt_section (info)->contents =
5411 (bfd_byte *) bfd_zalloc (dynobj,
5412 frvfdpic_plt_section (info)->size);
5413 if (frvfdpic_plt_section (info)->contents == NULL)
5414 return FALSE;
5415 }
5416 }
5417
5418 return TRUE;
5419 }
5420
5421 /* Set the sizes of the dynamic sections. */
5422
5423 static bfd_boolean
5424 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5425 struct bfd_link_info *info)
5426 {
5427 bfd *dynobj;
5428 asection *s;
5429 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5430
5431 dynobj = elf_hash_table (info)->dynobj;
5432 BFD_ASSERT (dynobj != NULL);
5433
5434 if (elf_hash_table (info)->dynamic_sections_created)
5435 {
5436 /* Set the contents of the .interp section to the interpreter. */
5437 if (bfd_link_executable (info) && !info->nointerp)
5438 {
5439 s = bfd_get_linker_section (dynobj, ".interp");
5440 BFD_ASSERT (s != NULL);
5441 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5442 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5443 }
5444 }
5445
5446 memset (&gpinfo, 0, sizeof (gpinfo));
5447 gpinfo.g.info = info;
5448
5449 for (;;)
5450 {
5451 htab_t relocs = frvfdpic_relocs_info (info);
5452
5453 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5454
5455 if (relocs == frvfdpic_relocs_info (info))
5456 break;
5457 }
5458
5459 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5460 &gpinfo.g);
5461
5462 /* Allocate space to save the summary information, we're going to
5463 use it if we're doing relaxations. */
5464 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5465
5466 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5467 return FALSE;
5468
5469 if (elf_hash_table (info)->dynamic_sections_created)
5470 {
5471 if (frvfdpic_got_section (info)->size)
5472 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5473 return FALSE;
5474
5475 if (frvfdpic_pltrel_section (info)->size)
5476 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5477 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5478 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5479 return FALSE;
5480
5481 if (frvfdpic_gotrel_section (info)->size)
5482 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5483 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5484 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5485 sizeof (Elf32_External_Rel)))
5486 return FALSE;
5487 }
5488
5489 return TRUE;
5490 }
5491
5492 static bfd_boolean
5493 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5494 struct bfd_link_info *info)
5495 {
5496 if (!bfd_link_relocatable (info)
5497 && !bfd_elf_stack_segment_size (output_bfd, info,
5498 "__stacksize", DEFAULT_STACK_SIZE))
5499 return FALSE;
5500
5501 return TRUE;
5502 }
5503
5504 /* Check whether any of the relocations was optimized away, and
5505 subtract it from the relocation or fixup count. */
5506 static bfd_boolean
5507 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5508 struct bfd_link_info *info,
5509
5510 bfd_boolean *changed)
5511 {
5512 Elf_Internal_Shdr *symtab_hdr;
5513 struct elf_link_hash_entry **sym_hashes;
5514 Elf_Internal_Rela *rel, *erel;
5515
5516 if ((sec->flags & SEC_RELOC) == 0
5517 || sec->reloc_count == 0)
5518 return TRUE;
5519
5520 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5521 sym_hashes = elf_sym_hashes (abfd);
5522
5523 rel = elf_section_data (sec)->relocs;
5524
5525 /* Now examine each relocation. */
5526 for (erel = rel + sec->reloc_count; rel < erel; rel++)
5527 {
5528 struct elf_link_hash_entry *h;
5529 unsigned long r_symndx;
5530 struct frvfdpic_relocs_info *picrel;
5531 struct _frvfdpic_dynamic_got_info *dinfo;
5532
5533 if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5534 && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5535 continue;
5536
5537 if (_bfd_elf_section_offset (sec->output_section->owner,
5538 info, sec, rel->r_offset)
5539 != (bfd_vma)-1)
5540 continue;
5541
5542 r_symndx = ELF32_R_SYM (rel->r_info);
5543 if (r_symndx < symtab_hdr->sh_info)
5544 h = NULL;
5545 else
5546 {
5547 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5548 while (h->root.type == bfd_link_hash_indirect
5549 || h->root.type == bfd_link_hash_warning)
5550 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5551 }
5552
5553 if (h != NULL)
5554 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5555 abfd, h,
5556 rel->r_addend, NO_INSERT);
5557 else
5558 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5559 abfd, r_symndx,
5560 rel->r_addend, NO_INSERT);
5561
5562 if (! picrel)
5563 return FALSE;
5564
5565 *changed = TRUE;
5566 dinfo = frvfdpic_dynamic_got_plt_info (info);
5567
5568 _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5569 if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5570 picrel->relocs32--;
5571 else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5572 picrel->relocsfd--;
5573 _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5574 }
5575
5576 return TRUE;
5577 }
5578
5579 static bfd_boolean
5580 frvfdpic_elf_discard_info (bfd *ibfd,
5581 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5582 struct bfd_link_info *info)
5583 {
5584 bfd_boolean changed = FALSE;
5585 asection *s;
5586 bfd *obfd = NULL;
5587
5588 /* Account for relaxation of .eh_frame section. */
5589 for (s = ibfd->sections; s; s = s->next)
5590 if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
5591 {
5592 if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5593 return FALSE;
5594 obfd = s->output_section->owner;
5595 }
5596
5597 if (changed)
5598 {
5599 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5600
5601 memset (&gpinfo, 0, sizeof (gpinfo));
5602 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5603 sizeof (gpinfo.g));
5604
5605 /* Clear GOT and PLT assignments. */
5606 htab_traverse (frvfdpic_relocs_info (info),
5607 _frvfdpic_reset_got_plt_entries,
5608 NULL);
5609
5610 if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5611 return FALSE;
5612 }
5613
5614 return TRUE;
5615 }
5616
5617 /* Look for opportunities to relax TLS relocations. We can assume
5618 we're linking the main executable or a static-tls library, since
5619 otherwise we wouldn't have got here. */
5620
5621 static int
5622 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5623 {
5624 struct frvfdpic_relocs_info *entry = *entryp;
5625 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5626
5627 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5628
5629 return 1;
5630 }
5631
5632 static bfd_boolean
5633 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5634 struct bfd_link_info *info, bfd_boolean *again)
5635 {
5636 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5637
5638 if (bfd_link_relocatable (info))
5639 (*info->callbacks->einfo)
5640 (_("%P%F: --relax and -r may not be used together\n"));
5641
5642 /* If we return early, we didn't change anything. */
5643 *again = FALSE;
5644
5645 /* We'll do our thing when requested to relax the GOT section. */
5646 if (sec != frvfdpic_got_section (info))
5647 return TRUE;
5648
5649 /* We can only relax when linking the main executable or a library
5650 that can't be dlopened. */
5651 if (! bfd_link_executable (info) && ! (info->flags & DF_STATIC_TLS))
5652 return TRUE;
5653
5654 /* If there isn't a TLS section for this binary, we can't do
5655 anything about its TLS relocations (it probably doesn't have
5656 any. */
5657 if (elf_hash_table (info)->tls_sec == NULL)
5658 return TRUE;
5659
5660 memset (&gpinfo, 0, sizeof (gpinfo));
5661 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5662
5663 /* Now look for opportunities to relax, adjusting the GOT usage
5664 as needed. */
5665 htab_traverse (frvfdpic_relocs_info (info),
5666 _frvfdpic_relax_got_plt_entries,
5667 &gpinfo.g);
5668
5669 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5670 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5671 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5672 {
5673 /* Clear GOT and PLT assignments. */
5674 htab_traverse (frvfdpic_relocs_info (info),
5675 _frvfdpic_reset_got_plt_entries,
5676 NULL);
5677
5678 /* The owner of the TLS section is the output bfd. There should
5679 be a better way to get to it. */
5680 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5681 &gpinfo))
5682 return FALSE;
5683
5684 /* Repeat until we don't make any further changes. We could fail to
5685 introduce changes in a round if, for example, the 12-bit range is
5686 full, but we later release some space by getting rid of TLS
5687 descriptors in it. We have to repeat the whole process because
5688 we might have changed the size of a section processed before this
5689 one. */
5690 *again = TRUE;
5691 }
5692
5693 return TRUE;
5694 }
5695
5696 /* Fill in code and data in dynamic sections. */
5697
5698 static bfd_boolean
5699 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5700 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5701 {
5702 /* Nothing to be done for non-FDPIC. */
5703 return TRUE;
5704 }
5705
5706 static bfd_boolean
5707 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5708 struct bfd_link_info *info)
5709 {
5710 bfd *dynobj;
5711 asection *sdyn;
5712
5713 dynobj = elf_hash_table (info)->dynobj;
5714
5715 if (frvfdpic_dynamic_got_plt_info (info))
5716 {
5717 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5718 }
5719 if (frvfdpic_got_section (info))
5720 {
5721 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5722 == (frvfdpic_gotrel_section (info)->reloc_count
5723 * sizeof (Elf32_External_Rel)));
5724
5725 if (frvfdpic_gotfixup_section (info))
5726 {
5727 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5728 bfd_vma got_value = hgot->root.u.def.value
5729 + hgot->root.u.def.section->output_section->vma
5730 + hgot->root.u.def.section->output_offset;
5731 struct bfd_link_hash_entry *hend;
5732
5733 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5734 got_value, 0);
5735
5736 if (frvfdpic_gotfixup_section (info)->size
5737 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5738 {
5739 error:
5740 info->callbacks->einfo
5741 ("LINKER BUG: .rofixup section size mismatch\n");
5742 return FALSE;
5743 }
5744
5745 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5746 FALSE, FALSE, TRUE);
5747 if (hend
5748 && (hend->type == bfd_link_hash_defined
5749 || hend->type == bfd_link_hash_defweak)
5750 && hend->u.def.section->output_section != NULL)
5751 {
5752 bfd_vma value =
5753 frvfdpic_gotfixup_section (info)->output_section->vma
5754 + frvfdpic_gotfixup_section (info)->output_offset
5755 + frvfdpic_gotfixup_section (info)->size
5756 - hend->u.def.section->output_section->vma
5757 - hend->u.def.section->output_offset;
5758 BFD_ASSERT (hend->u.def.value == value);
5759 if (hend->u.def.value != value)
5760 goto error;
5761 }
5762 }
5763 }
5764 if (frvfdpic_pltrel_section (info))
5765 {
5766 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5767 == (frvfdpic_pltrel_section (info)->reloc_count
5768 * sizeof (Elf32_External_Rel)));
5769 }
5770
5771
5772 if (elf_hash_table (info)->dynamic_sections_created)
5773 {
5774 Elf32_External_Dyn * dyncon;
5775 Elf32_External_Dyn * dynconend;
5776
5777 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5778
5779 BFD_ASSERT (sdyn != NULL);
5780
5781 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5782 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5783
5784 for (; dyncon < dynconend; dyncon++)
5785 {
5786 Elf_Internal_Dyn dyn;
5787
5788 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5789
5790 switch (dyn.d_tag)
5791 {
5792 default:
5793 break;
5794
5795 case DT_PLTGOT:
5796 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5797 + frvfdpic_got_section (info)->output_offset
5798 + frvfdpic_got_initial_offset (info);
5799 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5800 break;
5801
5802 case DT_JMPREL:
5803 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5804 ->output_section->vma
5805 + frvfdpic_pltrel_section (info)->output_offset;
5806 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5807 break;
5808
5809 case DT_PLTRELSZ:
5810 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5811 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5812 break;
5813 }
5814 }
5815 }
5816
5817 return TRUE;
5818 }
5819
5820 /* Adjust a symbol defined by a dynamic object and referenced by a
5821 regular object. */
5822
5823 static bfd_boolean
5824 elf32_frvfdpic_adjust_dynamic_symbol
5825 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5826 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5827 {
5828 bfd * dynobj;
5829
5830 dynobj = elf_hash_table (info)->dynobj;
5831
5832 /* Make sure we know what is going on here. */
5833 BFD_ASSERT (dynobj != NULL
5834 && (h->is_weakalias
5835 || (h->def_dynamic
5836 && h->ref_regular
5837 && !h->def_regular)));
5838
5839 /* If this is a weak symbol, and there is a real definition, the
5840 processor independent code will have arranged for us to see the
5841 real definition first, and we can just use the same value. */
5842 if (h->is_weakalias)
5843 {
5844 struct elf_link_hash_entry *def = weakdef (h);
5845 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
5846 h->root.u.def.section = def->root.u.def.section;
5847 h->root.u.def.value = def->root.u.def.value;
5848 return TRUE;
5849 }
5850
5851 return TRUE;
5852 }
5853
5854 /* Perform any actions needed for dynamic symbols. */
5855
5856 static bfd_boolean
5857 elf32_frvfdpic_finish_dynamic_symbol
5858 (bfd *output_bfd ATTRIBUTE_UNUSED,
5859 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5860 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5861 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5862 {
5863 return TRUE;
5864 }
5865
5866 /* Decide whether to attempt to turn absptr or lsda encodings in
5867 shared libraries into pcrel within the given input section. */
5868
5869 static bfd_boolean
5870 frvfdpic_elf_use_relative_eh_frame
5871 (bfd *input_bfd ATTRIBUTE_UNUSED,
5872 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5873 asection *eh_frame_section ATTRIBUTE_UNUSED)
5874 {
5875 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
5876 return FALSE;
5877 }
5878
5879 /* Adjust the contents of an eh_frame_hdr section before they're output. */
5880
5881 static bfd_byte
5882 frvfdpic_elf_encode_eh_address (bfd *abfd,
5883 struct bfd_link_info *info,
5884 asection *osec, bfd_vma offset,
5885 asection *loc_sec, bfd_vma loc_offset,
5886 bfd_vma *encoded)
5887 {
5888 struct elf_link_hash_entry *h;
5889
5890 h = elf_hash_table (info)->hgot;
5891 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
5892
5893 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
5894 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
5895 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
5896 loc_sec, loc_offset, encoded);
5897
5898 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
5899 == (_frvfdpic_osec_to_segment
5900 (abfd, h->root.u.def.section->output_section)));
5901
5902 *encoded = osec->vma + offset
5903 - (h->root.u.def.value
5904 + h->root.u.def.section->output_section->vma
5905 + h->root.u.def.section->output_offset);
5906
5907 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
5908 }
5909
5910 /* Look through the relocs for a section during the first phase.
5911
5912 Besides handling virtual table relocs for gc, we have to deal with
5913 all sorts of PIC-related relocations. We describe below the
5914 general plan on how to handle such relocations, even though we only
5915 collect information at this point, storing them in hash tables for
5916 perusal of later passes.
5917
5918 32 relocations are propagated to the linker output when creating
5919 position-independent output. LO16 and HI16 relocations are not
5920 supposed to be encountered in this case.
5921
5922 LABEL16 should always be resolvable by the linker, since it's only
5923 used by branches.
5924
5925 LABEL24, on the other hand, is used by calls. If it turns out that
5926 the target of a call is a dynamic symbol, a PLT entry must be
5927 created for it, which triggers the creation of a private function
5928 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
5929
5930 GPREL relocations require the referenced symbol to be in the same
5931 segment as _gp, but this can only be checked later.
5932
5933 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
5934 exist. LABEL24 might as well, since it may require a PLT entry,
5935 that will require a got.
5936
5937 Non-FUNCDESC GOT relocations require a GOT entry to be created
5938 regardless of whether the symbol is dynamic. However, since a
5939 global symbol that turns out to not be exported may have the same
5940 address of a non-dynamic symbol, we don't assign GOT entries at
5941 this point, such that we can share them in this case. A relocation
5942 for the GOT entry always has to be created, be it to offset a
5943 private symbol by the section load address, be it to get the symbol
5944 resolved dynamically.
5945
5946 FUNCDESC GOT relocations require a GOT entry to be created, and
5947 handled as if a FUNCDESC relocation was applied to the GOT entry in
5948 an object file.
5949
5950 FUNCDESC relocations referencing a symbol that turns out to NOT be
5951 dynamic cause a private function descriptor to be created. The
5952 FUNCDESC relocation then decays to a 32 relocation that points at
5953 the private descriptor. If the symbol is dynamic, the FUNCDESC
5954 relocation is propagated to the linker output, such that the
5955 dynamic linker creates the canonical descriptor, pointing to the
5956 dynamically-resolved definition of the function.
5957
5958 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
5959 symbols that are assigned to the same segment as the GOT, but we
5960 can only check this later, after we know the complete set of
5961 symbols defined and/or exported.
5962
5963 FUNCDESC GOTOFF relocations require a function descriptor to be
5964 created and, unless lazy binding is disabled or the symbol is not
5965 dynamic, a lazy PLT entry. Since we can't tell at this point
5966 whether a symbol is going to be dynamic, we have to decide later
5967 whether to create a lazy PLT entry or bind the descriptor directly
5968 to the private function.
5969
5970 FUNCDESC_VALUE relocations are not supposed to be present in object
5971 files, but they may very well be simply propagated to the linker
5972 output, since they have no side effect.
5973
5974
5975 A function descriptor always requires a FUNCDESC_VALUE relocation.
5976 Whether it's in .plt.rel or not depends on whether lazy binding is
5977 enabled and on whether the referenced symbol is dynamic.
5978
5979 The existence of a lazy PLT requires the resolverStub lazy PLT
5980 entry to be present.
5981
5982
5983 As for assignment of GOT, PLT and lazy PLT entries, and private
5984 descriptors, we might do them all sequentially, but we can do
5985 better than that. For example, we can place GOT entries and
5986 private function descriptors referenced using 12-bit operands
5987 closer to the PIC register value, such that these relocations don't
5988 overflow. Those that are only referenced with LO16 relocations
5989 could come next, but we may as well place PLT-required function
5990 descriptors in the 12-bit range to make them shorter. Symbols
5991 referenced with LO16/HI16 may come next, but we may place
5992 additional function descriptors in the 16-bit range if we can
5993 reliably tell that we've already placed entries that are ever
5994 referenced with only LO16. PLT entries are therefore generated as
5995 small as possible, while not introducing relocation overflows in
5996 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
5997 generated before or after PLT entries, but not intermingled with
5998 them, such that we can have more lazy PLT entries in range for a
5999 branch to the resolverStub. The resolverStub should be emitted at
6000 the most distant location from the first lazy PLT entry such that
6001 it's still in range for a branch, or closer, if there isn't a need
6002 for so many lazy PLT entries. Additional lazy PLT entries may be
6003 emitted after the resolverStub, as long as branches are still in
6004 range. If the branch goes out of range, longer lazy PLT entries
6005 are emitted.
6006
6007 We could further optimize PLT and lazy PLT entries by giving them
6008 priority in assignment to closer-to-gr17 locations depending on the
6009 number of occurrences of references to them (assuming a function
6010 that's called more often is more important for performance, so its
6011 PLT entry should be faster), or taking hints from the compiler.
6012 Given infinite time and money... :-) */
6013
6014 static bfd_boolean
6015 elf32_frv_check_relocs (bfd *abfd,
6016 struct bfd_link_info *info,
6017 asection *sec,
6018 const Elf_Internal_Rela *relocs)
6019 {
6020 Elf_Internal_Shdr *symtab_hdr;
6021 struct elf_link_hash_entry **sym_hashes;
6022 const Elf_Internal_Rela *rel;
6023 const Elf_Internal_Rela *rel_end;
6024 bfd *dynobj;
6025 struct frvfdpic_relocs_info *picrel;
6026
6027 if (bfd_link_relocatable (info))
6028 return TRUE;
6029
6030 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6031 sym_hashes = elf_sym_hashes (abfd);
6032
6033 dynobj = elf_hash_table (info)->dynobj;
6034 rel_end = relocs + sec->reloc_count;
6035 for (rel = relocs; rel < rel_end; rel++)
6036 {
6037 struct elf_link_hash_entry *h;
6038 unsigned long r_symndx;
6039
6040 r_symndx = ELF32_R_SYM (rel->r_info);
6041 if (r_symndx < symtab_hdr->sh_info)
6042 h = NULL;
6043 else
6044 {
6045 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6046 while (h->root.type == bfd_link_hash_indirect
6047 || h->root.type == bfd_link_hash_warning)
6048 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6049 }
6050
6051 switch (ELF32_R_TYPE (rel->r_info))
6052 {
6053 case R_FRV_GETTLSOFF:
6054 case R_FRV_TLSDESC_VALUE:
6055 case R_FRV_GOTTLSDESC12:
6056 case R_FRV_GOTTLSDESCHI:
6057 case R_FRV_GOTTLSDESCLO:
6058 case R_FRV_GOTTLSOFF12:
6059 case R_FRV_GOTTLSOFFHI:
6060 case R_FRV_GOTTLSOFFLO:
6061 case R_FRV_TLSOFF:
6062 case R_FRV_GOT12:
6063 case R_FRV_GOTHI:
6064 case R_FRV_GOTLO:
6065 case R_FRV_FUNCDESC_GOT12:
6066 case R_FRV_FUNCDESC_GOTHI:
6067 case R_FRV_FUNCDESC_GOTLO:
6068 case R_FRV_GOTOFF12:
6069 case R_FRV_GOTOFFHI:
6070 case R_FRV_GOTOFFLO:
6071 case R_FRV_FUNCDESC_GOTOFF12:
6072 case R_FRV_FUNCDESC_GOTOFFHI:
6073 case R_FRV_FUNCDESC_GOTOFFLO:
6074 case R_FRV_FUNCDESC:
6075 case R_FRV_FUNCDESC_VALUE:
6076 case R_FRV_TLSMOFF12:
6077 case R_FRV_TLSMOFFHI:
6078 case R_FRV_TLSMOFFLO:
6079 case R_FRV_TLSMOFF:
6080 if (! IS_FDPIC (abfd))
6081 goto bad_reloc;
6082 /* Fall through. */
6083 case R_FRV_GPREL12:
6084 case R_FRV_GPRELU12:
6085 case R_FRV_GPRELHI:
6086 case R_FRV_GPRELLO:
6087 case R_FRV_LABEL24:
6088 case R_FRV_32:
6089 if (! dynobj)
6090 {
6091 elf_hash_table (info)->dynobj = dynobj = abfd;
6092 if (! _frv_create_got_section (abfd, info))
6093 return FALSE;
6094 }
6095 if (! IS_FDPIC (abfd))
6096 {
6097 picrel = NULL;
6098 break;
6099 }
6100 if (h != NULL)
6101 {
6102 if (h->dynindx == -1)
6103 switch (ELF_ST_VISIBILITY (h->other))
6104 {
6105 case STV_INTERNAL:
6106 case STV_HIDDEN:
6107 break;
6108 default:
6109 bfd_elf_link_record_dynamic_symbol (info, h);
6110 break;
6111 }
6112 picrel
6113 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6114 abfd, h,
6115 rel->r_addend, INSERT);
6116 }
6117 else
6118 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6119 (info), abfd, r_symndx,
6120 rel->r_addend, INSERT);
6121 if (! picrel)
6122 return FALSE;
6123 break;
6124
6125 default:
6126 picrel = NULL;
6127 break;
6128 }
6129
6130 switch (ELF32_R_TYPE (rel->r_info))
6131 {
6132 case R_FRV_LABEL24:
6133 if (IS_FDPIC (abfd))
6134 picrel->call = 1;
6135 break;
6136
6137 case R_FRV_FUNCDESC_VALUE:
6138 picrel->relocsfdv++;
6139 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6140 picrel->relocs32--;
6141 /* Fall through. */
6142
6143 case R_FRV_32:
6144 if (! IS_FDPIC (abfd))
6145 break;
6146
6147 picrel->sym = 1;
6148 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6149 picrel->relocs32++;
6150 break;
6151
6152 case R_FRV_GOT12:
6153 picrel->got12 = 1;
6154 break;
6155
6156 case R_FRV_GOTHI:
6157 case R_FRV_GOTLO:
6158 picrel->gothilo = 1;
6159 break;
6160
6161 case R_FRV_FUNCDESC_GOT12:
6162 picrel->fdgot12 = 1;
6163 break;
6164
6165 case R_FRV_FUNCDESC_GOTHI:
6166 case R_FRV_FUNCDESC_GOTLO:
6167 picrel->fdgothilo = 1;
6168 break;
6169
6170 case R_FRV_GOTOFF12:
6171 case R_FRV_GOTOFFHI:
6172 case R_FRV_GOTOFFLO:
6173 picrel->gotoff = 1;
6174 break;
6175
6176 case R_FRV_FUNCDESC_GOTOFF12:
6177 picrel->fdgoff12 = 1;
6178 break;
6179
6180 case R_FRV_FUNCDESC_GOTOFFHI:
6181 case R_FRV_FUNCDESC_GOTOFFLO:
6182 picrel->fdgoffhilo = 1;
6183 break;
6184
6185 case R_FRV_FUNCDESC:
6186 picrel->fd = 1;
6187 picrel->relocsfd++;
6188 break;
6189
6190 case R_FRV_GETTLSOFF:
6191 picrel->tlsplt = 1;
6192 break;
6193
6194 case R_FRV_TLSDESC_VALUE:
6195 picrel->relocstlsd++;
6196 goto bad_reloc;
6197
6198 case R_FRV_GOTTLSDESC12:
6199 picrel->tlsdesc12 = 1;
6200 break;
6201
6202 case R_FRV_GOTTLSDESCHI:
6203 case R_FRV_GOTTLSDESCLO:
6204 picrel->tlsdeschilo = 1;
6205 break;
6206
6207 case R_FRV_TLSMOFF12:
6208 case R_FRV_TLSMOFFHI:
6209 case R_FRV_TLSMOFFLO:
6210 case R_FRV_TLSMOFF:
6211 break;
6212
6213 case R_FRV_GOTTLSOFF12:
6214 picrel->tlsoff12 = 1;
6215 info->flags |= DF_STATIC_TLS;
6216 break;
6217
6218 case R_FRV_GOTTLSOFFHI:
6219 case R_FRV_GOTTLSOFFLO:
6220 picrel->tlsoffhilo = 1;
6221 info->flags |= DF_STATIC_TLS;
6222 break;
6223
6224 case R_FRV_TLSOFF:
6225 picrel->relocstlsoff++;
6226 info->flags |= DF_STATIC_TLS;
6227 goto bad_reloc;
6228
6229 /* This relocation describes the C++ object vtable hierarchy.
6230 Reconstruct it for later use during GC. */
6231 case R_FRV_GNU_VTINHERIT:
6232 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6233 return FALSE;
6234 break;
6235
6236 /* This relocation describes which C++ vtable entries are actually
6237 used. Record for later use during GC. */
6238 case R_FRV_GNU_VTENTRY:
6239 BFD_ASSERT (h != NULL);
6240 if (h != NULL
6241 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6242 return FALSE;
6243 break;
6244
6245 case R_FRV_LABEL16:
6246 case R_FRV_LO16:
6247 case R_FRV_HI16:
6248 case R_FRV_GPREL12:
6249 case R_FRV_GPRELU12:
6250 case R_FRV_GPREL32:
6251 case R_FRV_GPRELHI:
6252 case R_FRV_GPRELLO:
6253 case R_FRV_TLSDESC_RELAX:
6254 case R_FRV_GETTLSOFF_RELAX:
6255 case R_FRV_TLSOFF_RELAX:
6256 break;
6257
6258 default:
6259 bad_reloc:
6260 /* xgettext:c-format */
6261 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
6262 abfd, (unsigned int) ELF32_R_TYPE (rel->r_info));
6263 return FALSE;
6264 }
6265 }
6266
6267 return TRUE;
6268 }
6269
6270 \f
6271 /* Return the machine subcode from the ELF e_flags header. */
6272
6273 static int
6274 elf32_frv_machine (bfd *abfd)
6275 {
6276 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6277 {
6278 default: break;
6279 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6280 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6281 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6282 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6283 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6284 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6285 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6286 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6287 }
6288
6289 return bfd_mach_frv;
6290 }
6291
6292 /* Set the right machine number for a FRV ELF file. */
6293
6294 static bfd_boolean
6295 elf32_frv_object_p (bfd *abfd)
6296 {
6297 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6298 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6299 == (IS_FDPIC (abfd)));
6300 }
6301 \f
6302 /* Function to set the ELF flag bits. */
6303
6304 static bfd_boolean
6305 frv_elf_set_private_flags (bfd *abfd, flagword flags)
6306 {
6307 elf_elfheader (abfd)->e_flags = flags;
6308 elf_flags_init (abfd) = TRUE;
6309 return TRUE;
6310 }
6311
6312 /* Return true if the architecture described by elf header flag
6313 EXTENSION is an extension of the architecture described by BASE. */
6314
6315 static bfd_boolean
6316 frv_elf_arch_extension_p (flagword base, flagword extension)
6317 {
6318 if (base == extension)
6319 return TRUE;
6320
6321 /* CPU_GENERIC code can be merged with code for a specific
6322 architecture, in which case the result is marked as being
6323 for the specific architecture. Everything is therefore
6324 an extension of CPU_GENERIC. */
6325 if (base == EF_FRV_CPU_GENERIC)
6326 return TRUE;
6327
6328 if (extension == EF_FRV_CPU_FR450)
6329 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6330 return TRUE;
6331
6332 if (extension == EF_FRV_CPU_FR405)
6333 if (base == EF_FRV_CPU_FR400)
6334 return TRUE;
6335
6336 return FALSE;
6337 }
6338
6339 /* Merge backend specific data from an object file to the output
6340 object file when linking. */
6341
6342 static bfd_boolean
6343 frv_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
6344 {
6345 bfd *obfd = info->output_bfd;
6346 flagword old_flags, old_partial;
6347 flagword new_flags, new_partial;
6348 bfd_boolean error = FALSE;
6349 char new_opt[80];
6350 char old_opt[80];
6351
6352 new_opt[0] = old_opt[0] = '\0';
6353 new_flags = elf_elfheader (ibfd)->e_flags;
6354 old_flags = elf_elfheader (obfd)->e_flags;
6355
6356 if (new_flags & EF_FRV_FDPIC)
6357 new_flags &= ~EF_FRV_PIC;
6358
6359 #ifdef DEBUG
6360 _bfd_error_handler
6361 ("old_flags = 0x%.8x, new_flags = 0x%.8x, init = %s, filename = %s",
6362 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6363 bfd_get_filename (ibfd));
6364 #endif
6365
6366 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6367 {
6368 elf_flags_init (obfd) = TRUE;
6369 old_flags = new_flags;
6370 }
6371
6372 else if (new_flags == old_flags) /* Compatible flags are ok. */
6373 ;
6374
6375 else /* Possibly incompatible flags. */
6376 {
6377 /* Warn if different # of gprs are used. Note, 0 means nothing is
6378 said about the size of gprs. */
6379 new_partial = (new_flags & EF_FRV_GPR_MASK);
6380 old_partial = (old_flags & EF_FRV_GPR_MASK);
6381 if (new_partial == old_partial)
6382 ;
6383
6384 else if (new_partial == 0)
6385 ;
6386
6387 else if (old_partial == 0)
6388 old_flags |= new_partial;
6389
6390 else
6391 {
6392 switch (new_partial)
6393 {
6394 default: strcat (new_opt, " -mgpr-??"); break;
6395 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6396 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6397 }
6398
6399 switch (old_partial)
6400 {
6401 default: strcat (old_opt, " -mgpr-??"); break;
6402 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6403 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6404 }
6405 }
6406
6407 /* Warn if different # of fprs are used. Note, 0 means nothing is
6408 said about the size of fprs. */
6409 new_partial = (new_flags & EF_FRV_FPR_MASK);
6410 old_partial = (old_flags & EF_FRV_FPR_MASK);
6411 if (new_partial == old_partial)
6412 ;
6413
6414 else if (new_partial == 0)
6415 ;
6416
6417 else if (old_partial == 0)
6418 old_flags |= new_partial;
6419
6420 else
6421 {
6422 switch (new_partial)
6423 {
6424 default: strcat (new_opt, " -mfpr-?"); break;
6425 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6426 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6427 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6428 }
6429
6430 switch (old_partial)
6431 {
6432 default: strcat (old_opt, " -mfpr-?"); break;
6433 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6434 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6435 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6436 }
6437 }
6438
6439 /* Warn if different dword support was used. Note, 0 means nothing is
6440 said about the dword support. */
6441 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6442 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6443 if (new_partial == old_partial)
6444 ;
6445
6446 else if (new_partial == 0)
6447 ;
6448
6449 else if (old_partial == 0)
6450 old_flags |= new_partial;
6451
6452 else
6453 {
6454 switch (new_partial)
6455 {
6456 default: strcat (new_opt, " -mdword-?"); break;
6457 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6458 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6459 }
6460
6461 switch (old_partial)
6462 {
6463 default: strcat (old_opt, " -mdword-?"); break;
6464 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6465 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6466 }
6467 }
6468
6469 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6470 feature is used. */
6471 old_flags |= new_flags & (EF_FRV_DOUBLE
6472 | EF_FRV_MEDIA
6473 | EF_FRV_MULADD
6474 | EF_FRV_NON_PIC_RELOCS);
6475
6476 /* If any module was compiled without -G0, clear the G0 bit. */
6477 old_flags = ((old_flags & ~ EF_FRV_G0)
6478 | (old_flags & new_flags & EF_FRV_G0));
6479
6480 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6481 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6482 | (old_flags & new_flags & EF_FRV_NOPACK));
6483
6484 /* We don't have to do anything if the pic flags are the same, or the new
6485 module(s) were compiled with -mlibrary-pic. */
6486 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6487 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6488 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6489 ;
6490
6491 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6492 flags if any from the new module. */
6493 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6494 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6495
6496 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6497 else if (new_partial != 0 && old_partial != 0)
6498 old_flags |= new_partial;
6499
6500 /* One module was compiled for pic and the other was not, see if we have
6501 had any relocations that are not pic-safe. */
6502 else
6503 {
6504 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6505 old_flags |= new_partial;
6506 else
6507 {
6508 old_flags &= ~ EF_FRV_PIC_FLAGS;
6509 #ifndef FRV_NO_PIC_ERROR
6510 error = TRUE;
6511 _bfd_error_handler
6512 /* xgettext:c-format */
6513 (_("%pB: compiled with %s and linked with modules"
6514 " that use non-pic relocations"),
6515 ibfd, (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6516 #endif
6517 }
6518 }
6519
6520 /* Warn if different cpu is used (allow a specific cpu to override
6521 the generic cpu). */
6522 new_partial = (new_flags & EF_FRV_CPU_MASK);
6523 old_partial = (old_flags & EF_FRV_CPU_MASK);
6524 if (frv_elf_arch_extension_p (new_partial, old_partial))
6525 ;
6526
6527 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6528 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6529
6530 else
6531 {
6532 switch (new_partial)
6533 {
6534 default: strcat (new_opt, " -mcpu=?"); break;
6535 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6536 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6537 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6538 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6539 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6540 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6541 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6542 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6543 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6544 }
6545
6546 switch (old_partial)
6547 {
6548 default: strcat (old_opt, " -mcpu=?"); break;
6549 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6550 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6551 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6552 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6553 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6554 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6555 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6556 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6557 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6558 }
6559 }
6560
6561 /* Print out any mismatches from above. */
6562 if (new_opt[0])
6563 {
6564 error = TRUE;
6565 _bfd_error_handler
6566 /* xgettext:c-format */
6567 (_("%pB: compiled with %s and linked with modules compiled with %s"),
6568 ibfd, new_opt, old_opt);
6569 }
6570
6571 /* Warn about any other mismatches */
6572 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6573 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6574 if (new_partial != old_partial)
6575 {
6576 old_flags |= new_partial;
6577 error = TRUE;
6578 _bfd_error_handler
6579 /* xgettext:c-format */
6580 (_("%pB: uses different unknown e_flags (%#x) fields"
6581 " than previous modules (%#x)"),
6582 ibfd, new_partial, old_partial);
6583 }
6584 }
6585
6586 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6587 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6588 old_flags |= EF_FRV_NOPACK;
6589
6590 /* Update the old flags now with changes made above. */
6591 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6592 elf_elfheader (obfd)->e_flags = old_flags;
6593 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6594 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6595
6596 if (((new_flags & EF_FRV_FDPIC) == 0)
6597 != (! IS_FDPIC (ibfd)))
6598 {
6599 error = TRUE;
6600 if (IS_FDPIC (obfd))
6601 _bfd_error_handler
6602 (_("%pB: cannot link non-fdpic object file into fdpic executable"),
6603 ibfd);
6604 else
6605 _bfd_error_handler
6606 (_("%pB: cannot link fdpic object file into non-fdpic executable"),
6607 ibfd);
6608 }
6609
6610 if (error)
6611 bfd_set_error (bfd_error_bad_value);
6612
6613 return !error;
6614 }
6615
6616 \f
6617 static bfd_boolean
6618 frv_elf_print_private_bfd_data (bfd *abfd, void * ptr)
6619 {
6620 FILE *file = (FILE *) ptr;
6621 flagword flags;
6622
6623 BFD_ASSERT (abfd != NULL && ptr != NULL);
6624
6625 /* Print normal ELF private data. */
6626 _bfd_elf_print_private_bfd_data (abfd, ptr);
6627
6628 flags = elf_elfheader (abfd)->e_flags;
6629 fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6630
6631 switch (flags & EF_FRV_CPU_MASK)
6632 {
6633 default: break;
6634 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6635 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6636 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6637 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6638 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6639 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6640 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6641 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6642 }
6643
6644 switch (flags & EF_FRV_GPR_MASK)
6645 {
6646 default: break;
6647 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6648 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6649 }
6650
6651 switch (flags & EF_FRV_FPR_MASK)
6652 {
6653 default: break;
6654 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6655 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6656 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6657 }
6658
6659 switch (flags & EF_FRV_DWORD_MASK)
6660 {
6661 default: break;
6662 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6663 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6664 }
6665
6666 if (flags & EF_FRV_DOUBLE)
6667 fprintf (file, " -mdouble");
6668
6669 if (flags & EF_FRV_MEDIA)
6670 fprintf (file, " -mmedia");
6671
6672 if (flags & EF_FRV_MULADD)
6673 fprintf (file, " -mmuladd");
6674
6675 if (flags & EF_FRV_PIC)
6676 fprintf (file, " -fpic");
6677
6678 if (flags & EF_FRV_BIGPIC)
6679 fprintf (file, " -fPIC");
6680
6681 if (flags & EF_FRV_LIBPIC)
6682 fprintf (file, " -mlibrary-pic");
6683
6684 if (flags & EF_FRV_FDPIC)
6685 fprintf (file, " -mfdpic");
6686
6687 if (flags & EF_FRV_NON_PIC_RELOCS)
6688 fprintf (file, " non-pic relocations");
6689
6690 if (flags & EF_FRV_G0)
6691 fprintf (file, " -G0");
6692
6693 fputc ('\n', file);
6694 return TRUE;
6695 }
6696
6697 \f
6698 /* Support for core dump NOTE sections. */
6699
6700 static bfd_boolean
6701 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6702 {
6703 int offset;
6704 unsigned int raw_size;
6705
6706 switch (note->descsz)
6707 {
6708 default:
6709 return FALSE;
6710
6711 /* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
6712 hardcoded offsets and sizes listed below (and contained within
6713 this lexical block) refer to fields in the target's elf_prstatus
6714 struct. */
6715 case 268:
6716 /* `pr_cursig' is at offset 12. */
6717 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6718
6719 /* `pr_pid' is at offset 24. */
6720 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6721
6722 /* `pr_reg' is at offset 72. */
6723 offset = 72;
6724
6725 /* Most grok_prstatus implementations set `raw_size' to the size
6726 of the pr_reg field. For Linux/FRV, we set `raw_size' to be
6727 the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6728 and `pr_interp_fdpic_loadmap', both of which (by design)
6729 immediately follow `pr_reg'. This will allow these fields to
6730 be viewed by GDB as registers.
6731
6732 `pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
6733 `pr_interp_fdpic_loadmap' are 4 bytes each. */
6734 raw_size = 184 + 4 + 4;
6735
6736 break;
6737 }
6738
6739 /* Make a ".reg/999" section. */
6740 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6741 note->descpos + offset);
6742 }
6743
6744 static bfd_boolean
6745 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6746 {
6747 switch (note->descsz)
6748 {
6749 default:
6750 return FALSE;
6751
6752 /* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
6753 case 124:
6754
6755 /* `pr_fname' is found at offset 28 and is 16 bytes long. */
6756 elf_tdata (abfd)->core->program
6757 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6758
6759 /* `pr_psargs' is found at offset 44 and is 80 bytes long. */
6760 elf_tdata (abfd)->core->command
6761 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6762 }
6763
6764 /* Note that for some reason, a spurious space is tacked
6765 onto the end of the args in some (at least one anyway)
6766 implementations, so strip it off if it exists. */
6767
6768 {
6769 char *command = elf_tdata (abfd)->core->command;
6770 int n = strlen (command);
6771
6772 if (0 < n && command[n - 1] == ' ')
6773 command[n - 1] = '\0';
6774 }
6775
6776 return TRUE;
6777 }
6778 #define ELF_ARCH bfd_arch_frv
6779 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
6780 #define ELF_MAXPAGESIZE 0x1000
6781
6782 #define TARGET_BIG_SYM frv_elf32_vec
6783 #define TARGET_BIG_NAME "elf32-frv"
6784
6785 #define elf_info_to_howto frv_info_to_howto_rela
6786 #define elf_backend_relocate_section elf32_frv_relocate_section
6787 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
6788 #define elf_backend_check_relocs elf32_frv_check_relocs
6789 #define elf_backend_object_p elf32_frv_object_p
6790 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
6791
6792 #define elf_backend_stack_align 8
6793 #define elf_backend_can_gc_sections 1
6794 #define elf_backend_rela_normal 1
6795
6796 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
6797 #define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
6798 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
6799 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
6800 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
6801
6802 #define elf_backend_want_got_sym 1
6803 #define elf_backend_got_header_size 0
6804 #define elf_backend_want_got_plt 0
6805 #define elf_backend_plt_readonly 1
6806 #define elf_backend_want_plt_sym 0
6807 #define elf_backend_plt_header_size 0
6808
6809 #define elf_backend_finish_dynamic_sections \
6810 elf32_frv_finish_dynamic_sections
6811
6812 #define elf_backend_grok_prstatus elf32_frv_grok_prstatus
6813 #define elf_backend_grok_psinfo elf32_frv_grok_psinfo
6814
6815 #define elf_backend_linux_prpsinfo32_ugid16 TRUE
6816
6817 #include "elf32-target.h"
6818
6819 #undef ELF_TARGET_ID
6820 #define ELF_TARGET_ID FRV_ELF_DATA
6821 #undef ELF_MAXPAGESIZE
6822 #define ELF_MAXPAGESIZE 0x4000
6823
6824 #undef TARGET_BIG_SYM
6825 #define TARGET_BIG_SYM frv_elf32_fdpic_vec
6826 #undef TARGET_BIG_NAME
6827 #define TARGET_BIG_NAME "elf32-frvfdpic"
6828 #undef elf32_bed
6829 #define elf32_bed elf32_frvfdpic_bed
6830
6831 #undef elf_info_to_howto_rel
6832 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
6833
6834 #undef bfd_elf32_bfd_link_hash_table_create
6835 #define bfd_elf32_bfd_link_hash_table_create \
6836 frvfdpic_elf_link_hash_table_create
6837 #undef elf_backend_always_size_sections
6838 #define elf_backend_always_size_sections \
6839 elf32_frvfdpic_always_size_sections
6840
6841 #undef elf_backend_create_dynamic_sections
6842 #define elf_backend_create_dynamic_sections \
6843 elf32_frvfdpic_create_dynamic_sections
6844 #undef elf_backend_adjust_dynamic_symbol
6845 #define elf_backend_adjust_dynamic_symbol \
6846 elf32_frvfdpic_adjust_dynamic_symbol
6847 #undef elf_backend_size_dynamic_sections
6848 #define elf_backend_size_dynamic_sections \
6849 elf32_frvfdpic_size_dynamic_sections
6850 #undef bfd_elf32_bfd_relax_section
6851 #define bfd_elf32_bfd_relax_section \
6852 elf32_frvfdpic_relax_section
6853 #undef elf_backend_finish_dynamic_symbol
6854 #define elf_backend_finish_dynamic_symbol \
6855 elf32_frvfdpic_finish_dynamic_symbol
6856 #undef elf_backend_finish_dynamic_sections
6857 #define elf_backend_finish_dynamic_sections \
6858 elf32_frvfdpic_finish_dynamic_sections
6859
6860 #undef elf_backend_discard_info
6861 #define elf_backend_discard_info \
6862 frvfdpic_elf_discard_info
6863 #undef elf_backend_can_make_relative_eh_frame
6864 #define elf_backend_can_make_relative_eh_frame \
6865 frvfdpic_elf_use_relative_eh_frame
6866 #undef elf_backend_can_make_lsda_relative_eh_frame
6867 #define elf_backend_can_make_lsda_relative_eh_frame \
6868 frvfdpic_elf_use_relative_eh_frame
6869 #undef elf_backend_encode_eh_address
6870 #define elf_backend_encode_eh_address \
6871 frvfdpic_elf_encode_eh_address
6872
6873 #undef elf_backend_may_use_rel_p
6874 #define elf_backend_may_use_rel_p 1
6875 #undef elf_backend_may_use_rela_p
6876 #define elf_backend_may_use_rela_p 1
6877 /* We use REL for dynamic relocations only. */
6878 #undef elf_backend_default_use_rela_p
6879 #define elf_backend_default_use_rela_p 1
6880
6881 #undef elf_backend_omit_section_dynsym
6882 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
6883
6884 #include "elf32-target.h"
GDB Binutils - Deliverables
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